diff options
Diffstat (limited to 'contrib/binutils/bfd')
25 files changed, 0 insertions, 34113 deletions
diff --git a/contrib/binutils/bfd/VERSION b/contrib/binutils/bfd/VERSION deleted file mode 100644 index dbe590065479b..0000000000000 --- a/contrib/binutils/bfd/VERSION +++ /dev/null @@ -1 +0,0 @@ -2.8.1 diff --git a/contrib/binutils/bfd/acconfig.h b/contrib/binutils/bfd/acconfig.h deleted file mode 100644 index 1d5e819ec24ea..0000000000000 --- a/contrib/binutils/bfd/acconfig.h +++ /dev/null @@ -1,34 +0,0 @@ - -/* Name of package. */ -#undef PACKAGE - -/* Version of package. */ -#undef VERSION - -/* Whether strstr must be declared even if <string.h> is included. */ -#undef NEED_DECLARATION_STRSTR - -/* Whether malloc must be declared even if <stdlib.h> is included. */ -#undef NEED_DECLARATION_MALLOC - -/* Whether realloc must be declared even if <stdlib.h> is included. */ -#undef NEED_DECLARATION_REALLOC - -/* Whether free must be declared even if <stdlib.h> is included. */ -#undef NEED_DECLARATION_FREE - -/* Whether getenv must be declared even if <stdlib.h> is included. */ -#undef NEED_DECLARATION_GETENV -@TOP@ - -/* Do we need to use the b modifier when opening binary files? */ -#undef USE_BINARY_FOPEN - -/* Name of host specific header file to include in trad-core.c. */ -#undef TRAD_HEADER - -/* Define only if <sys/procfs.h> is available *and* it defines prstatus_t. */ -#undef HAVE_SYS_PROCFS_H - -/* Do we really want to use mmap if it's available? */ -#undef USE_MMAP diff --git a/contrib/binutils/bfd/aout-tic30.c b/contrib/binutils/bfd/aout-tic30.c deleted file mode 100644 index a3e977d7600ba..0000000000000 --- a/contrib/binutils/bfd/aout-tic30.c +++ /dev/null @@ -1,1064 +0,0 @@ -/* BFD back-end for TMS320C30 a.out binaries. - Copyright 1998, 1999, 2000 Free Software Foundation, Inc. - Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au) - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#define TARGET_IS_BIG_ENDIAN_P -#define N_HEADER_IN_TEXT(x) 1 -#define BYTES_IN_WORD 4 -#define TEXT_START_ADDR 1024 -#define TARGET_PAGE_SIZE 128 -#define SEGMENT_SIZE TARGET_PAGE_SIZE -#define DEFAULT_ARCH bfd_arch_tic30 -#define ARCH_SIZE 32 - -#define MY(OP) CAT(tic30_aout_,OP) -#define TARGETNAME "a.out-tic30" -#define NAME(x,y) CAT3(tic30_aout,_32_,y) - -#include "bfd.h" -#include "sysdep.h" -#include "libaout.h" - -#include "aout/aout64.h" -#include "aout/stab_gnu.h" -#include "aout/ar.h" - -static bfd_reloc_status_type tic30_aout_fix_16 - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static bfd_reloc_status_type tic30_aout_fix_32 - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static bfd_reloc_status_type tic30_aout_fix_pcrel_16 - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static reloc_howto_type *tic30_aout_reloc_howto - PARAMS ((bfd *, struct reloc_std_external *, int *, int *, int *)); -static bfd_reloc_status_type tic30_aout_relocate_contents - PARAMS ((reloc_howto_type *, bfd *, bfd_vma, bfd_byte *)); -static bfd_reloc_status_type tic30_aout_final_link_relocate - PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, bfd_vma, - bfd_vma, bfd_vma)); -static const bfd_target *tic30_aout_object_p PARAMS ((bfd *)); -static boolean tic30_aout_write_object_contents PARAMS ((bfd *)); -static boolean tic30_aout_set_sizes PARAMS ((bfd *)); - -#define MY_reloc_howto(BFD,REL,IN,EX,PC) tic30_aout_reloc_howto(BFD,REL,&IN,&EX,&PC) -#define MY_final_link_relocate tic30_aout_final_link_relocate -#define MY_object_p tic30_aout_object_p -#define MY_mkobject NAME(aout,mkobject) -#define MY_write_object_contents tic30_aout_write_object_contents -#define MY_set_sizes tic30_aout_set_sizes - -#ifndef MY_exec_hdr_flags -#define MY_exec_hdr_flags 1 -#endif - -#ifndef MY_backend_data - -#ifndef MY_zmagic_contiguous -#define MY_zmagic_contiguous 0 -#endif -#ifndef MY_text_includes_header -#define MY_text_includes_header 0 -#endif -#ifndef MY_entry_is_text_address -#define MY_entry_is_text_address 0 -#endif -#ifndef MY_exec_header_not_counted -#define MY_exec_header_not_counted 1 -#endif -#ifndef MY_add_dynamic_symbols -#define MY_add_dynamic_symbols 0 -#endif -#ifndef MY_add_one_symbol -#define MY_add_one_symbol 0 -#endif -#ifndef MY_link_dynamic_object -#define MY_link_dynamic_object 0 -#endif -#ifndef MY_write_dynamic_symbol -#define MY_write_dynamic_symbol 0 -#endif -#ifndef MY_check_dynamic_reloc -#define MY_check_dynamic_reloc 0 -#endif -#ifndef MY_finish_dynamic_link -#define MY_finish_dynamic_link 0 -#endif - -static CONST struct aout_backend_data tic30_aout_backend_data = -{ - MY_zmagic_contiguous, - MY_text_includes_header, - MY_entry_is_text_address, - MY_exec_hdr_flags, - 0, /* text vma? */ - MY_set_sizes, - MY_exec_header_not_counted, - MY_add_dynamic_symbols, - MY_add_one_symbol, - MY_link_dynamic_object, - MY_write_dynamic_symbol, - MY_check_dynamic_reloc, - MY_finish_dynamic_link -}; -#define MY_backend_data &tic30_aout_backend_data -#endif - -/* FIXME: This is wrong. aoutx.h should really only be included by - aout32.c. */ - -#include "aoutx.h" - -/* This table lists the relocation types for the TMS320C30. There are - only a few relocations required, and all must be divided by 4 (>> - 2) to get the 32-bit addresses in the format the TMS320C30 likes - it. */ -reloc_howto_type tic30_aout_howto_table[] = -{ - EMPTY_HOWTO (-1), - HOWTO (1, 2, 1, 16, false, 0, 0, tic30_aout_fix_16, - "16", false, 0x0000FFFF, 0x0000FFFF, false), - HOWTO (2, 2, 2, 24, false, 0, complain_overflow_bitfield, NULL, - "24", false, 0x00FFFFFF, 0x00FFFFFF, false), - HOWTO (3, 18, 3, 24, false, 0, complain_overflow_bitfield, NULL, - "LDP", false, 0x00FF0000, 0x000000FF, false), - HOWTO (4, 2, 4, 32, false, 0, complain_overflow_bitfield, tic30_aout_fix_32, - "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false), - HOWTO (5, 2, 1, 16, true, 0, complain_overflow_signed, - tic30_aout_fix_pcrel_16, "PCREL", true, 0x0000FFFF, 0x0000FFFF, true), - EMPTY_HOWTO (-1), - EMPTY_HOWTO (-1), - EMPTY_HOWTO (-1), - EMPTY_HOWTO (-1), - EMPTY_HOWTO (-1) -}; - -extern reloc_howto_type *NAME (aout, reloc_type_lookup) (); - -reloc_howto_type * -tic30_aout_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - switch (code) - { - case BFD_RELOC_8: - case BFD_RELOC_TIC30_LDP: - return &tic30_aout_howto_table[3]; - case BFD_RELOC_16: - return &tic30_aout_howto_table[1]; - case BFD_RELOC_24: - return &tic30_aout_howto_table[2]; - case BFD_RELOC_16_PCREL: - return &tic30_aout_howto_table[5]; - case BFD_RELOC_32: - return &tic30_aout_howto_table[4]; - default: - return (reloc_howto_type *) NULL; - } -} - -static reloc_howto_type * -tic30_aout_reloc_howto (abfd, relocs, r_index, r_extern, r_pcrel) - bfd *abfd; - struct reloc_std_external *relocs; - int *r_index; - int *r_extern; - int *r_pcrel; -{ - unsigned int r_length; - unsigned int r_pcrel_done; - int index; - - *r_pcrel = 0; - if (bfd_header_big_endian (abfd)) - { - *r_index = ((relocs->r_index[0] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[2]); - *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_BIG)); - r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_BIG)); - r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) >> RELOC_STD_BITS_LENGTH_SH_BIG); - } - else - { - *r_index = ((relocs->r_index[2] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[0]); - *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE)); - r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE)); - r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) >> RELOC_STD_BITS_LENGTH_SH_LITTLE); - } - index = r_length + 4 * r_pcrel_done; - return tic30_aout_howto_table + index; -} - -/* This function is used as a callback for 16-bit relocs. This is - required for relocations between segments. A line in aoutx.h - requires that any relocations for the data section should point to - the end of the aligned text section, plus an offset. By default, - this does not happen, therefore this function takes care of - that. */ - -static bfd_reloc_status_type -tic30_aout_fix_16 (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_vma relocation; - - /* Make sure that the symbol's section is defined. */ - if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0) - return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined; - /* Get the size of the input section and turn it into the TMS320C30 - 32-bit address format. */ - relocation = (symbol->section->vma >> 2); - relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); - bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); - return bfd_reloc_ok; -} - -/* This function does the same thing as tic30_aout_fix_16 except for 32 - bit relocations. */ - -static bfd_reloc_status_type -tic30_aout_fix_32 (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_vma relocation; - - /* Make sure that the symbol's section is defined. */ - if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0) - return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined; - /* Get the size of the input section and turn it into the TMS320C30 - 32-bit address format. */ - relocation = (symbol->section->vma >> 2); - relocation += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - bfd_put_32 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); - return bfd_reloc_ok; -} - -/* This function is used to work out pc-relative offsets for the - TMS320C30. The data already placed by md_pcrel_from within gas is - useless for a relocation, so we just get the offset value and place - a version of this within the object code. - tic30_aout_final_link_relocate will then calculate the required - relocation to add on to the value in the object code. */ - -static bfd_reloc_status_type -tic30_aout_fix_pcrel_16 (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol ATTRIBUTE_UNUSED; - PTR data; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd ATTRIBUTE_UNUSED; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_vma relocation = 1; - bfd_byte offset_data = bfd_get_8 (abfd, (bfd_byte *) data + reloc_entry->address - 1); - - /* The byte before the location of the fix contains bits 23-16 of - the pcrel instruction. Bit 21 is set for a delayed instruction - which requires on offset of 3 instead of 1. */ - if (offset_data & 0x20) - relocation -= 3; - else - relocation -= 1; - bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address); - return bfd_reloc_ok; -} - -/* These macros will get 24-bit values from the bfd definition. - Big-endian only. */ -#define bfd_getb_24(BFD,ADDR) \ - (bfd_get_8 (BFD, ADDR ) << 16) | \ - (bfd_get_8 (BFD, ADDR + 1) << 8) | \ - (bfd_get_8 (BFD, ADDR + 2) ) - -#define bfd_putb_24(BFD,DATA,ADDR) \ - bfd_put_8 (BFD, (bfd_byte) ((DATA >> 16) & 0xFF), ADDR ); \ - bfd_put_8 (BFD, (bfd_byte) ((DATA >> 8) & 0xFF), ADDR + 1); \ - bfd_put_8 (BFD, (bfd_byte) ( DATA & 0xFF), ADDR + 2) - -/* Set parameters about this a.out file that are machine-dependent. - This routine is called from some_aout_object_p just before it returns. */ - -static const bfd_target * -tic30_aout_callback (abfd) - bfd *abfd; -{ - struct internal_exec *execp = exec_hdr (abfd); - unsigned int arch_align_power; - unsigned long arch_align; - - /* Calculate the file positions of the parts of a newly read aout header */ - obj_textsec (abfd)->_raw_size = N_TXTSIZE (*execp); - - /* The virtual memory addresses of the sections */ - obj_textsec (abfd)->vma = N_TXTADDR (*execp); - obj_datasec (abfd)->vma = N_DATADDR (*execp); - obj_bsssec (abfd)->vma = N_BSSADDR (*execp); - - obj_textsec (abfd)->lma = obj_textsec (abfd)->vma; - obj_datasec (abfd)->lma = obj_datasec (abfd)->vma; - obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma; - - /* The file offsets of the sections */ - obj_textsec (abfd)->filepos = N_TXTOFF (*execp); - obj_datasec (abfd)->filepos = N_DATOFF (*execp); - - /* The file offsets of the relocation info */ - obj_textsec (abfd)->rel_filepos = N_TRELOFF (*execp); - obj_datasec (abfd)->rel_filepos = N_DRELOFF (*execp); - - /* The file offsets of the string table and symbol table. */ - obj_sym_filepos (abfd) = N_SYMOFF (*execp); - obj_str_filepos (abfd) = N_STROFF (*execp); - - /* Determine the architecture and machine type of the object file. */ -#ifdef SET_ARCH_MACH - SET_ARCH_MACH (abfd, *execp); -#else - bfd_default_set_arch_mach (abfd, DEFAULT_ARCH, 0); -#endif - - /* Now that we know the architecture, set the alignments of the - sections. This is normally done by NAME(aout,new_section_hook), - but when the initial sections were created the architecture had - not yet been set. However, for backward compatibility, we don't - set the alignment power any higher than as required by the size - of the section. */ - arch_align_power = bfd_get_arch_info (abfd)->section_align_power; - arch_align = 1 << arch_align_power; - if ((BFD_ALIGN (obj_textsec (abfd)->_raw_size, arch_align) - == obj_textsec (abfd)->_raw_size) - && (BFD_ALIGN (obj_datasec (abfd)->_raw_size, arch_align) - == obj_datasec (abfd)->_raw_size) - && (BFD_ALIGN (obj_bsssec (abfd)->_raw_size, arch_align) - == obj_bsssec (abfd)->_raw_size)) - { - obj_textsec (abfd)->alignment_power = arch_align_power; - obj_datasec (abfd)->alignment_power = arch_align_power; - obj_bsssec (abfd)->alignment_power = arch_align_power; - } - return abfd->xvec; -} - -static bfd_reloc_status_type -tic30_aout_final_link_relocate (howto, input_bfd, input_section, contents, - address, value, addend) - reloc_howto_type *howto; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - bfd_vma address; - bfd_vma value; - bfd_vma addend; -{ - bfd_vma relocation; - - if (address > input_section->_raw_size) - return bfd_reloc_outofrange; - - relocation = value + addend; - if (howto->pc_relative) - { - relocation -= (input_section->output_section->vma + input_section->output_offset); - if (howto->pcrel_offset) - relocation -= address; - } - return tic30_aout_relocate_contents (howto, input_bfd, relocation, - contents + address); -} - -bfd_reloc_status_type -tic30_aout_relocate_contents (howto, input_bfd, relocation, location) - reloc_howto_type *howto; - bfd *input_bfd; - bfd_vma relocation; - bfd_byte *location; -{ - bfd_vma x; - boolean overflow; - - if (howto->size < 0) - relocation = -relocation; - - switch (howto->size) - { - default: - case 0: - abort (); - break; - case 1: - x = bfd_get_16 (input_bfd, location); - break; - case 2: - x = bfd_getb_24 (input_bfd, location); - break; - case 3: - x = bfd_get_8 (input_bfd, location); - break; - case 4: - x = bfd_get_32 (input_bfd, location); - break; - } - overflow = false; - if (howto->complain_on_overflow != complain_overflow_dont) - { - bfd_vma check; - bfd_signed_vma signed_check; - bfd_vma add; - bfd_signed_vma signed_add; - - if (howto->rightshift == 0) - { - check = relocation; - signed_check = (bfd_signed_vma) relocation; - } - else - { - check = relocation >> howto->rightshift; - if ((bfd_signed_vma) relocation >= 0) - signed_check = check; - else - signed_check = (check | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->rightshift))); - } - add = x & howto->src_mask; - signed_add = add; - if ((add & (((~howto->src_mask) >> 1) & howto->src_mask)) != 0) - signed_add -= (((~howto->src_mask) >> 1) & howto->src_mask) << 1; - if (howto->bitpos == 0) - { - check += add; - signed_check += signed_add; - } - else - { - check += add >> howto->bitpos; - if (signed_add >= 0) - signed_check += add >> howto->bitpos; - else - signed_check += ((add >> howto->bitpos) | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->bitpos))); - } - switch (howto->complain_on_overflow) - { - case complain_overflow_signed: - { - bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; - bfd_signed_vma reloc_signed_min = ~reloc_signed_max; - if (signed_check > reloc_signed_max || signed_check < reloc_signed_min) - overflow = true; - } - break; - case complain_overflow_unsigned: - { - bfd_vma reloc_unsigned_max = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1; - if (check > reloc_unsigned_max) - overflow = true; - } - break; - case complain_overflow_bitfield: - { - bfd_vma reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1; - if ((check & ~reloc_bits) != 0 && (((bfd_vma) signed_check & ~reloc_bits) != (-1 & ~reloc_bits))) - overflow = true; - } - break; - default: - abort (); - } - } - relocation >>= (bfd_vma) howto->rightshift; - relocation <<= (bfd_vma) howto->bitpos; - x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask)); - switch (howto->size) - { - default: - case 0: - abort (); - break; - case 1: - bfd_put_16 (input_bfd, x, location); - break; - case 2: - bfd_putb_24 (input_bfd, x, location); - break; - case 3: - bfd_put_8 (input_bfd, x, location); - break; - case 4: - bfd_put_32 (input_bfd, x, location); - break; - } - return overflow ? bfd_reloc_overflow : bfd_reloc_ok; -} - -/* Finish up the reading of an a.out file header */ - -static const bfd_target * -tic30_aout_object_p (abfd) - bfd *abfd; -{ - struct external_exec exec_bytes; /* Raw exec header from file */ - struct internal_exec exec; /* Cleaned-up exec header */ - const bfd_target *target; - - if (bfd_read ((PTR) & exec_bytes, 1, EXEC_BYTES_SIZE, abfd) - != EXEC_BYTES_SIZE) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return 0; - } - -#ifdef SWAP_MAGIC - exec.a_info = SWAP_MAGIC (exec_bytes.e_info); -#else - exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); -#endif /* SWAP_MAGIC */ - - if (N_BADMAG (exec)) - return 0; -#ifdef MACHTYPE_OK - if (!(MACHTYPE_OK (N_MACHTYPE (exec)))) - return 0; -#endif - - NAME (aout, swap_exec_header_in) (abfd, &exec_bytes, &exec); - -#ifdef SWAP_MAGIC - /* swap_exec_header_in read in a_info with the wrong byte order */ - exec.a_info = SWAP_MAGIC (exec_bytes.e_info); -#endif /* SWAP_MAGIC */ - - target = NAME (aout, some_aout_object_p) (abfd, &exec, tic30_aout_callback); - -#ifdef ENTRY_CAN_BE_ZERO - /* The NEWSOS3 entry-point is/was 0, which (amongst other lossage) - * means that it isn't obvious if EXEC_P should be set. - * All of the following must be true for an executable: - * There must be no relocations, the bfd can be neither an - * archive nor an archive element, and the file must be executable. */ - - if (exec.a_trsize + exec.a_drsize == 0 - && bfd_get_format (abfd) == bfd_object && abfd->my_archive == NULL) - { - struct stat buf; -#ifndef S_IXUSR -#define S_IXUSR 0100 /* Execute by owner. */ -#endif - if (stat (abfd->filename, &buf) == 0 && (buf.st_mode & S_IXUSR)) - abfd->flags |= EXEC_P; - } -#endif /* ENTRY_CAN_BE_ZERO */ - - return target; -} - -/* Copy private section data. This actually does nothing with the - sections. It copies the subformat field. We copy it here, because - we need to know whether this is a QMAGIC file before we set the - section contents, and copy_private_bfd_data is not called until - after the section contents have been set. */ - -static boolean -MY_bfd_copy_private_section_data (ibfd, isec, obfd, osec) - bfd *ibfd; - asection *isec ATTRIBUTE_UNUSED; - bfd *obfd; - asection *osec ATTRIBUTE_UNUSED; -{ - if (bfd_get_flavour (obfd) == bfd_target_aout_flavour) - obj_aout_subformat (obfd) = obj_aout_subformat (ibfd); - return true; -} - -/* Write an object file. - Section contents have already been written. We write the - file header, symbols, and relocation. */ - -static boolean -tic30_aout_write_object_contents (abfd) - bfd *abfd; -{ - struct external_exec exec_bytes; - struct internal_exec *execp = exec_hdr (abfd); - - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - - { - bfd_size_type text_size; /* dummy vars */ - file_ptr text_end; - if (adata (abfd).magic == undecided_magic) - NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end); - - execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE; - execp->a_entry = bfd_get_start_address (abfd); - - execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * obj_reloc_entry_size (abfd)); - execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * obj_reloc_entry_size (abfd)); - NAME (aout, swap_exec_header_out) (abfd, execp, &exec_bytes); - - if (adata (abfd).exec_bytes_size > 0) - { - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) - return false; - if (bfd_write ((PTR) & exec_bytes, 1, adata (abfd).exec_bytes_size, abfd) != adata (abfd).exec_bytes_size) - return false; - } - /* Now write out reloc info, followed by syms and strings */ - - if (bfd_get_outsymbols (abfd) != (asymbol **) NULL - && bfd_get_symcount (abfd) != 0) - { - if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*execp)), SEEK_SET) != 0) - return false; - - if (!NAME (aout, write_syms) (abfd)) - return false; - } - - if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*execp)), SEEK_SET) != 0) - return false; - if (!NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))) - return false; - - if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*execp)), SEEK_SET) != 0) - return false; - if (!NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) - return false; - } - - return true; -} - -static boolean -tic30_aout_set_sizes (abfd) - bfd *abfd; -{ - adata (abfd).page_size = TARGET_PAGE_SIZE; - -#ifdef SEGMENT_SIZE - adata (abfd).segment_size = SEGMENT_SIZE; -#else - adata (abfd).segment_size = TARGET_PAGE_SIZE; -#endif - -#ifdef ZMAGIC_DISK_BLOCK_SIZE - adata (abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE; -#else - adata (abfd).zmagic_disk_block_size = TARGET_PAGE_SIZE; -#endif - - adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; - - return true; -} - -#ifndef MY_final_link_callback - -/* Callback for the final_link routine to set the section offsets. */ - -static void MY_final_link_callback - PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *)); - -static void -MY_final_link_callback (abfd, ptreloff, pdreloff, psymoff) - bfd *abfd; - file_ptr *ptreloff; - file_ptr *pdreloff; - file_ptr *psymoff; -{ - struct internal_exec *execp = exec_hdr (abfd); - - *ptreloff = obj_datasec (abfd)->filepos + execp->a_data; - *pdreloff = *ptreloff + execp->a_trsize; - *psymoff = *pdreloff + execp->a_drsize;; -} - -#endif - -#ifndef MY_bfd_final_link - -/* Final link routine. We need to use a call back to get the correct - offsets in the output file. */ - -static boolean -MY_bfd_final_link (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - struct internal_exec *execp = exec_hdr (abfd); - file_ptr pos; - bfd_vma vma = 0; - int pad; - - /* Set the executable header size to 0, as we don't want one for an - output. */ - adata (abfd).exec_bytes_size = 0; - pos = adata (abfd).exec_bytes_size; - /* Text. */ - vma = info->create_object_symbols_section->vma; - pos += vma; - obj_textsec (abfd)->filepos = pos; - obj_textsec (abfd)->vma = vma; - obj_textsec (abfd)->user_set_vma = 1; - pos += obj_textsec (abfd)->_raw_size; - vma += obj_textsec (abfd)->_raw_size; - - /* Data. */ - if (abfd->flags & D_PAGED) - { - if (info->create_object_symbols_section->next->vma > 0) - obj_datasec (abfd)->vma = info->create_object_symbols_section->next->vma; - else - obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size); - } - else - { - obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4); - } - if (obj_datasec (abfd)->vma < vma) - { - obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4); - } - obj_datasec (abfd)->user_set_vma = 1; - vma = obj_datasec (abfd)->vma; - obj_datasec (abfd)->filepos = vma + adata (abfd).exec_bytes_size; - execp->a_text = vma - obj_textsec (abfd)->vma; - obj_textsec (abfd)->_raw_size = execp->a_text; - - /* Since BSS follows data immediately, see if it needs alignment. */ - vma += obj_datasec (abfd)->_raw_size; - pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma; - obj_datasec (abfd)->_raw_size += pad; - pos += obj_datasec (abfd)->_raw_size; - execp->a_data = obj_datasec (abfd)->_raw_size; - - /* BSS. */ - obj_bsssec (abfd)->vma = vma; - obj_bsssec (abfd)->user_set_vma = 1; - - /* We are fully resized, so don't readjust in final_link. */ - adata (abfd).magic = z_magic; - - return NAME (aout, final_link) (abfd, info, MY_final_link_callback); -} - -#endif - -enum machine_type -tic30_aout_machine_type (arch, machine, unknown) - enum bfd_architecture arch; - unsigned long machine ATTRIBUTE_UNUSED; - boolean *unknown; -{ - enum machine_type arch_flags; - - arch_flags = M_UNKNOWN; - *unknown = true; - - switch (arch) - { - case bfd_arch_tic30: - *unknown = false; - break; - default: - arch_flags = M_UNKNOWN; - } - if (arch_flags != M_UNKNOWN) - *unknown = false; - return arch_flags; -} - -boolean -tic30_aout_set_arch_mach (abfd, arch, machine) - bfd *abfd; - enum bfd_architecture arch; - unsigned long machine; -{ - if (!bfd_default_set_arch_mach (abfd, arch, machine)) - return false; - if (arch != bfd_arch_unknown) - { - boolean unknown; - tic30_aout_machine_type (arch, machine, &unknown); - if (unknown) - return false; - } - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - return (*aout_backend_info (abfd)->set_sizes) (abfd); -} - -/* We assume BFD generic archive files. */ -#ifndef MY_openr_next_archived_file -#define MY_openr_next_archived_file bfd_generic_openr_next_archived_file -#endif -#ifndef MY_get_elt_at_index -#define MY_get_elt_at_index _bfd_generic_get_elt_at_index -#endif -#ifndef MY_generic_stat_arch_elt -#define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt -#endif -#ifndef MY_slurp_armap -#define MY_slurp_armap bfd_slurp_bsd_armap -#endif -#ifndef MY_slurp_extended_name_table -#define MY_slurp_extended_name_table _bfd_slurp_extended_name_table -#endif -#ifndef MY_construct_extended_name_table -#define MY_construct_extended_name_table \ - _bfd_archive_bsd_construct_extended_name_table -#endif -#ifndef MY_write_armap -#define MY_write_armap bsd_write_armap -#endif -#ifndef MY_read_ar_hdr -#define MY_read_ar_hdr _bfd_generic_read_ar_hdr -#endif -#ifndef MY_truncate_arname -#define MY_truncate_arname bfd_bsd_truncate_arname -#endif -#ifndef MY_update_armap_timestamp -#define MY_update_armap_timestamp _bfd_archive_bsd_update_armap_timestamp -#endif - -/* No core file defined here -- configure in trad-core.c separately. */ -#ifndef MY_core_file_failing_command -#define MY_core_file_failing_command _bfd_nocore_core_file_failing_command -#endif -#ifndef MY_core_file_failing_signal -#define MY_core_file_failing_signal _bfd_nocore_core_file_failing_signal -#endif -#ifndef MY_core_file_matches_executable_p -#define MY_core_file_matches_executable_p \ - _bfd_nocore_core_file_matches_executable_p -#endif -#ifndef MY_core_file_p -#define MY_core_file_p _bfd_dummy_target -#endif - -#ifndef MY_bfd_debug_info_start -#define MY_bfd_debug_info_start bfd_void -#endif -#ifndef MY_bfd_debug_info_end -#define MY_bfd_debug_info_end bfd_void -#endif -#ifndef MY_bfd_debug_info_accumulate -#define MY_bfd_debug_info_accumulate \ - (void (*) PARAMS ((bfd*, struct sec *))) bfd_void -#endif - -#ifndef MY_core_file_failing_command -#define MY_core_file_failing_command NAME(aout,core_file_failing_command) -#endif -#ifndef MY_core_file_failing_signal -#define MY_core_file_failing_signal NAME(aout,core_file_failing_signal) -#endif -#ifndef MY_core_file_matches_executable_p -#define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p) -#endif -#ifndef MY_set_section_contents -#define MY_set_section_contents NAME(aout,set_section_contents) -#endif -#ifndef MY_get_section_contents -#define MY_get_section_contents aout_32_get_section_contents -#endif -#ifndef MY_get_section_contents_in_window -#define MY_get_section_contents_in_window _bfd_generic_get_section_contents_in_window -#endif -#ifndef MY_new_section_hook -#define MY_new_section_hook NAME(aout,new_section_hook) -#endif -#ifndef MY_get_symtab_upper_bound -#define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound) -#endif -#ifndef MY_get_symtab -#define MY_get_symtab NAME(aout,get_symtab) -#endif -#ifndef MY_get_reloc_upper_bound -#define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound) -#endif -#ifndef MY_canonicalize_reloc -#define MY_canonicalize_reloc NAME(aout,canonicalize_reloc) -#endif -#ifndef MY_make_empty_symbol -#define MY_make_empty_symbol NAME(aout,make_empty_symbol) -#endif -#ifndef MY_print_symbol -#define MY_print_symbol NAME(aout,print_symbol) -#endif -#ifndef MY_get_symbol_info -#define MY_get_symbol_info NAME(aout,get_symbol_info) -#endif -#ifndef MY_get_lineno -#define MY_get_lineno NAME(aout,get_lineno) -#endif -#ifndef MY_set_arch_mach -#define MY_set_arch_mach tic30_aout_set_arch_mach -#endif -#ifndef MY_find_nearest_line -#define MY_find_nearest_line NAME(aout,find_nearest_line) -#endif -#ifndef MY_sizeof_headers -#define MY_sizeof_headers NAME(aout,sizeof_headers) -#endif -#ifndef MY_bfd_get_relocated_section_contents -#define MY_bfd_get_relocated_section_contents \ - bfd_generic_get_relocated_section_contents -#endif -#ifndef MY_bfd_relax_section -#define MY_bfd_relax_section bfd_generic_relax_section -#endif -#ifndef MY_bfd_gc_sections -#define MY_bfd_gc_sections bfd_generic_gc_sections -#endif -#ifndef MY_bfd_reloc_type_lookup -#define MY_bfd_reloc_type_lookup tic30_aout_reloc_type_lookup -#endif -#ifndef MY_bfd_make_debug_symbol -#define MY_bfd_make_debug_symbol 0 -#endif -#ifndef MY_read_minisymbols -#define MY_read_minisymbols NAME(aout,read_minisymbols) -#endif -#ifndef MY_minisymbol_to_symbol -#define MY_minisymbol_to_symbol NAME(aout,minisymbol_to_symbol) -#endif -#ifndef MY_bfd_link_hash_table_create -#define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create) -#endif -#ifndef MY_bfd_link_add_symbols -#define MY_bfd_link_add_symbols NAME(aout,link_add_symbols) -#endif -#ifndef MY_bfd_link_split_section -#define MY_bfd_link_split_section _bfd_generic_link_split_section -#endif - -#ifndef MY_bfd_copy_private_bfd_data -#define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data -#endif - -#ifndef MY_bfd_merge_private_bfd_data -#define MY_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data -#endif - -#ifndef MY_bfd_copy_private_symbol_data -#define MY_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data -#endif - -#ifndef MY_bfd_print_private_bfd_data -#define MY_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data -#endif - -#ifndef MY_bfd_set_private_flags -#define MY_bfd_set_private_flags _bfd_generic_bfd_set_private_flags -#endif - -#ifndef MY_bfd_is_local_label_name -#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name -#endif - -#ifndef MY_bfd_free_cached_info -#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info) -#endif - -#ifndef MY_close_and_cleanup -#define MY_close_and_cleanup MY_bfd_free_cached_info -#endif - -#ifndef MY_get_dynamic_symtab_upper_bound -#define MY_get_dynamic_symtab_upper_bound \ - _bfd_nodynamic_get_dynamic_symtab_upper_bound -#endif -#ifndef MY_canonicalize_dynamic_symtab -#define MY_canonicalize_dynamic_symtab \ - _bfd_nodynamic_canonicalize_dynamic_symtab -#endif -#ifndef MY_get_dynamic_reloc_upper_bound -#define MY_get_dynamic_reloc_upper_bound \ - _bfd_nodynamic_get_dynamic_reloc_upper_bound -#endif -#ifndef MY_canonicalize_dynamic_reloc -#define MY_canonicalize_dynamic_reloc \ - _bfd_nodynamic_canonicalize_dynamic_reloc -#endif - -/* Aout symbols normally have leading underscores */ -#ifndef MY_symbol_leading_char -#define MY_symbol_leading_char '_' -#endif - -/* Aout archives normally use spaces for padding */ -#ifndef AR_PAD_CHAR -#define AR_PAD_CHAR ' ' -#endif - -#ifndef MY_BFD_TARGET -const bfd_target tic30_aout_vec = -{ - TARGETNAME, /* name */ - bfd_target_aout_flavour, - BFD_ENDIAN_BIG, /* target byte order (big) */ - BFD_ENDIAN_BIG, /* target headers byte order (big) */ - (HAS_RELOC | /* object flags */ - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - MY_symbol_leading_char, - AR_PAD_CHAR, /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ - bfd_generic_archive_p, MY_core_file_p}, - {bfd_false, MY_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, MY_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (MY), - BFD_JUMP_TABLE_COPY (MY), - BFD_JUMP_TABLE_CORE (MY), - BFD_JUMP_TABLE_ARCHIVE (MY), - BFD_JUMP_TABLE_SYMBOLS (MY), - BFD_JUMP_TABLE_RELOCS (MY), - BFD_JUMP_TABLE_WRITE (MY), - BFD_JUMP_TABLE_LINK (MY), - BFD_JUMP_TABLE_DYNAMIC (MY), - - NULL, - - (PTR) MY_backend_data -}; -#endif /* MY_BFD_TARGET */ diff --git a/contrib/binutils/bfd/coff-mips.c b/contrib/binutils/bfd/coff-mips.c deleted file mode 100644 index bb4b15e96c244..0000000000000 --- a/contrib/binutils/bfd/coff-mips.c +++ /dev/null @@ -1,2735 +0,0 @@ -/* BFD back-end for MIPS Extended-Coff files. - Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 - Free Software Foundation, Inc. - Original version by Per Bothner. - Full support added by Ian Lance Taylor, ian@cygnus.com. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "coff/internal.h" -#include "coff/sym.h" -#include "coff/symconst.h" -#include "coff/ecoff.h" -#include "coff/mips.h" -#include "libcoff.h" -#include "libecoff.h" - -/* Prototypes for static functions. */ - -static boolean mips_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr)); -static void mips_ecoff_swap_reloc_in PARAMS ((bfd *, PTR, - struct internal_reloc *)); -static void mips_ecoff_swap_reloc_out PARAMS ((bfd *, - const struct internal_reloc *, - PTR)); -static void mips_adjust_reloc_in PARAMS ((bfd *, - const struct internal_reloc *, - arelent *)); -static void mips_adjust_reloc_out PARAMS ((bfd *, const arelent *, - struct internal_reloc *)); -static bfd_reloc_status_type mips_generic_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_refhi_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_reflo_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_gprel_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_relhi_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_rello_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static bfd_reloc_status_type mips_switch_reloc PARAMS ((bfd *abfd, - arelent *reloc, - asymbol *symbol, - PTR data, - asection *section, - bfd *output_bfd, - char **error)); -static void mips_relocate_hi PARAMS ((struct internal_reloc *refhi, - struct internal_reloc *reflo, - bfd *input_bfd, - asection *input_section, - bfd_byte *contents, - size_t adjust, - bfd_vma relocation, - boolean pcrel)); -static boolean mips_relocate_section PARAMS ((bfd *, struct bfd_link_info *, - bfd *, asection *, - bfd_byte *, PTR)); -static boolean mips_read_relocs PARAMS ((bfd *, asection *)); -static boolean mips_relax_section PARAMS ((bfd *, asection *, - struct bfd_link_info *, - boolean *)); -static boolean mips_relax_pcrel16 PARAMS ((struct bfd_link_info *, bfd *, - asection *, - struct ecoff_link_hash_entry *, - bfd_byte *, bfd_vma)); -static reloc_howto_type *mips_bfd_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); - - -/* ECOFF has COFF sections, but the debugging information is stored in - a completely different format. ECOFF targets use some of the - swapping routines from coffswap.h, and some of the generic COFF - routines in coffgen.c, but, unlike the real COFF targets, do not - use coffcode.h itself. - - Get the generic COFF swapping routines, except for the reloc, - symbol, and lineno ones. Give them ECOFF names. */ -#define MIPSECOFF -#define NO_COFF_RELOCS -#define NO_COFF_SYMBOLS -#define NO_COFF_LINENOS -#define coff_swap_filehdr_in mips_ecoff_swap_filehdr_in -#define coff_swap_filehdr_out mips_ecoff_swap_filehdr_out -#define coff_swap_aouthdr_in mips_ecoff_swap_aouthdr_in -#define coff_swap_aouthdr_out mips_ecoff_swap_aouthdr_out -#define coff_swap_scnhdr_in mips_ecoff_swap_scnhdr_in -#define coff_swap_scnhdr_out mips_ecoff_swap_scnhdr_out -#include "coffswap.h" - -/* Get the ECOFF swapping routines. */ -#define ECOFF_32 -#include "ecoffswap.h" - -/* How to process the various relocs types. */ - -static reloc_howto_type mips_howto_table[] = -{ - /* Reloc type 0 is ignored. The reloc reading code ensures that - this is a reference to the .abs section, which will cause - bfd_perform_relocation to do nothing. */ - HOWTO (MIPS_R_IGNORE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - 0, /* special_function */ - "IGNORE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 16 bit reference to a symbol, normally from a data section. */ - HOWTO (MIPS_R_REFHALF, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - mips_generic_reloc, /* special_function */ - "REFHALF", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 32 bit reference to a symbol, normally from a data section. */ - HOWTO (MIPS_R_REFWORD, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - mips_generic_reloc, /* special_function */ - "REFWORD", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 26 bit absolute jump address. */ - HOWTO (MIPS_R_JMPADDR, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - mips_generic_reloc, /* special_function */ - "JMPADDR", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The high 16 bits of a symbol value. Handled by the function - mips_refhi_reloc. */ - HOWTO (MIPS_R_REFHI, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - mips_refhi_reloc, /* special_function */ - "REFHI", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The low 16 bits of a symbol value. */ - HOWTO (MIPS_R_REFLO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - mips_reflo_reloc, /* special_function */ - "REFLO", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A reference to an offset from the gp register. Handled by the - function mips_gprel_reloc. */ - HOWTO (MIPS_R_GPREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - mips_gprel_reloc, /* special_function */ - "GPREL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A reference to a literal using an offset from the gp register. - Handled by the function mips_gprel_reloc. */ - HOWTO (MIPS_R_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - mips_gprel_reloc, /* special_function */ - "LITERAL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - EMPTY_HOWTO (8), - EMPTY_HOWTO (9), - EMPTY_HOWTO (10), - EMPTY_HOWTO (11), - - /* This reloc is a Cygnus extension used when generating position - independent code for embedded systems. It represents a 16 bit PC - relative reloc rightshifted twice as used in the MIPS branch - instructions. */ - HOWTO (MIPS_R_PCREL16, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - mips_generic_reloc, /* special_function */ - "PCREL16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true), /* pcrel_offset */ - - /* This reloc is a Cygnus extension used when generating position - independent code for embedded systems. It represents the high 16 - bits of a PC relative reloc. The next reloc must be - MIPS_R_RELLO, and the addend is formed from the addends of the - two instructions, just as in MIPS_R_REFHI and MIPS_R_REFLO. The - final value is actually PC relative to the location of the - MIPS_R_RELLO reloc, not the MIPS_R_RELHI reloc. */ - HOWTO (MIPS_R_RELHI, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - mips_relhi_reloc, /* special_function */ - "RELHI", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true), /* pcrel_offset */ - - /* This reloc is a Cygnus extension used when generating position - independent code for embedded systems. It represents the low 16 - bits of a PC relative reloc. */ - HOWTO (MIPS_R_RELLO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - mips_rello_reloc, /* special_function */ - "RELLO", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true), /* pcrel_offset */ - - EMPTY_HOWTO (15), - EMPTY_HOWTO (16), - EMPTY_HOWTO (17), - EMPTY_HOWTO (18), - EMPTY_HOWTO (19), - EMPTY_HOWTO (20), - EMPTY_HOWTO (21), - - /* This reloc is a Cygnus extension used when generating position - independent code for embedded systems. It represents an entry in - a switch table, which is the difference between two symbols in - the .text section. The symndx is actually the offset from the - reloc address to the subtrahend. See include/coff/mips.h for - more details. */ - HOWTO (MIPS_R_SWITCH, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - mips_switch_reloc, /* special_function */ - "SWITCH", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - true) /* pcrel_offset */ -}; - -#define MIPS_HOWTO_COUNT \ - (sizeof mips_howto_table / sizeof mips_howto_table[0]) - -/* When the linker is doing relaxing, it may change a external PCREL16 - reloc. This typically represents an instruction like - bal foo - We change it to - .set noreorder - bal $L1 - lui $at,%hi(foo - $L1) - $L1: - addiu $at,%lo(foo - $L1) - addu $at,$at,$31 - jalr $at - PCREL16_EXPANSION_ADJUSTMENT is the number of bytes this changes the - instruction by. */ - -#define PCREL16_EXPANSION_ADJUSTMENT (4 * 4) - -/* See whether the magic number matches. */ - -static boolean -mips_ecoff_bad_format_hook (abfd, filehdr) - bfd *abfd; - PTR filehdr; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - - switch (internal_f->f_magic) - { - case MIPS_MAGIC_1: - /* I don't know what endianness this implies. */ - return true; - - case MIPS_MAGIC_BIG: - case MIPS_MAGIC_BIG2: - case MIPS_MAGIC_BIG3: - return bfd_big_endian (abfd); - - case MIPS_MAGIC_LITTLE: - case MIPS_MAGIC_LITTLE2: - case MIPS_MAGIC_LITTLE3: - return bfd_little_endian (abfd); - - default: - return false; - } -} - -/* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in - external form. They use a bit which indicates whether the symbol - is external. */ - -/* Swap a reloc in. */ - -static void -mips_ecoff_swap_reloc_in (abfd, ext_ptr, intern) - bfd *abfd; - PTR ext_ptr; - struct internal_reloc *intern; -{ - const RELOC *ext = (RELOC *) ext_ptr; - - intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr); - if (bfd_header_big_endian (abfd)) - { - intern->r_symndx = (((int) ext->r_bits[0] - << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) - | ((int) ext->r_bits[1] - << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) - | ((int) ext->r_bits[2] - << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); - intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) - >> RELOC_BITS3_TYPE_SH_BIG); - intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; - } - else - { - intern->r_symndx = (((int) ext->r_bits[0] - << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) - | ((int) ext->r_bits[1] - << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) - | ((int) ext->r_bits[2] - << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); - intern->r_type = (((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) - >> RELOC_BITS3_TYPE_SH_LITTLE) - | ((ext->r_bits[3] & RELOC_BITS3_TYPEHI_LITTLE) - << RELOC_BITS3_TYPEHI_SH_LITTLE)); - intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; - } - - /* If this is a MIPS_R_SWITCH reloc, or an internal MIPS_R_RELHI or - MIPS_R_RELLO reloc, r_symndx is actually the offset from the - reloc address to the base of the difference (see - include/coff/mips.h for more details). We copy symndx into the - r_offset field so as not to confuse ecoff_slurp_reloc_table in - ecoff.c. In adjust_reloc_in we then copy r_offset into the reloc - addend. */ - if (intern->r_type == MIPS_R_SWITCH - || (! intern->r_extern - && (intern->r_type == MIPS_R_RELLO - || intern->r_type == MIPS_R_RELHI))) - { - BFD_ASSERT (! intern->r_extern); - intern->r_offset = intern->r_symndx; - if (intern->r_offset & 0x800000) - intern->r_offset -= 0x1000000; - intern->r_symndx = RELOC_SECTION_TEXT; - } -} - -/* Swap a reloc out. */ - -static void -mips_ecoff_swap_reloc_out (abfd, intern, dst) - bfd *abfd; - const struct internal_reloc *intern; - PTR dst; -{ - RELOC *ext = (RELOC *) dst; - long r_symndx; - - BFD_ASSERT (intern->r_extern - || (intern->r_symndx >= 0 && intern->r_symndx <= 12)); - - /* If this is a MIPS_R_SWITCH reloc, or an internal MIPS_R_RELLO or - MIPS_R_RELHI reloc, we actually want to write the contents of - r_offset out as the symbol index. This undoes the change made by - mips_ecoff_swap_reloc_in. */ - if (intern->r_type != MIPS_R_SWITCH - && (intern->r_extern - || (intern->r_type != MIPS_R_RELHI - && intern->r_type != MIPS_R_RELLO))) - r_symndx = intern->r_symndx; - else - { - BFD_ASSERT (intern->r_symndx == RELOC_SECTION_TEXT); - r_symndx = intern->r_offset & 0xffffff; - } - - bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr); - if (bfd_header_big_endian (abfd)) - { - ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; - ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; - ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; - ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) - & RELOC_BITS3_TYPE_BIG) - | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); - } - else - { - ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; - ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; - ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; - ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) - & RELOC_BITS3_TYPE_LITTLE) - | ((intern->r_type >> RELOC_BITS3_TYPEHI_SH_LITTLE - & RELOC_BITS3_TYPEHI_LITTLE)) - | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); - } -} - -/* Finish canonicalizing a reloc. Part of this is generic to all - ECOFF targets, and that part is in ecoff.c. The rest is done in - this backend routine. It must fill in the howto field. */ - -static void -mips_adjust_reloc_in (abfd, intern, rptr) - bfd *abfd; - const struct internal_reloc *intern; - arelent *rptr; -{ - if (intern->r_type > MIPS_R_SWITCH) - abort (); - - if (! intern->r_extern - && (intern->r_type == MIPS_R_GPREL - || intern->r_type == MIPS_R_LITERAL)) - rptr->addend += ecoff_data (abfd)->gp; - - /* If the type is MIPS_R_IGNORE, make sure this is a reference to - the absolute section so that the reloc is ignored. */ - if (intern->r_type == MIPS_R_IGNORE) - rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - - /* If this is a MIPS_R_SWITCH reloc, or an internal MIPS_R_RELHI or - MIPS_R_RELLO reloc, we want the addend field of the BFD relocto - hold the value which was originally in the symndx field of the - internal MIPS ECOFF reloc. This value was copied into - intern->r_offset by mips_swap_reloc_in, and here we copy it into - the addend field. */ - if (intern->r_type == MIPS_R_SWITCH - || (! intern->r_extern - && (intern->r_type == MIPS_R_RELHI - || intern->r_type == MIPS_R_RELLO))) - rptr->addend = intern->r_offset; - - rptr->howto = &mips_howto_table[intern->r_type]; -} - -/* Make any adjustments needed to a reloc before writing it out. None - are needed for MIPS. */ - -static void -mips_adjust_reloc_out (abfd, rel, intern) - bfd *abfd ATTRIBUTE_UNUSED; - const arelent *rel; - struct internal_reloc *intern; -{ - /* For a MIPS_R_SWITCH reloc, or an internal MIPS_R_RELHI or - MIPS_R_RELLO reloc, we must copy rel->addend into - intern->r_offset. This will then be written out as the symbol - index by mips_ecoff_swap_reloc_out. This operation parallels the - action of mips_adjust_reloc_in. */ - if (intern->r_type == MIPS_R_SWITCH - || (! intern->r_extern - && (intern->r_type == MIPS_R_RELHI - || intern->r_type == MIPS_R_RELLO))) - intern->r_offset = rel->addend; -} - -/* ECOFF relocs are either against external symbols, or against - sections. If we are producing relocateable output, and the reloc - is against an external symbol, and nothing has given us any - additional addend, the resulting reloc will also be against the - same symbol. In such a case, we don't want to change anything - about the way the reloc is handled, since it will all be done at - final link time. Rather than put special case code into - bfd_perform_relocation, all the reloc types use this howto - function. It just short circuits the reloc if producing - relocateable output against an external symbol. */ - -static bfd_reloc_status_type -mips_generic_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data ATTRIBUTE_UNUSED; - asection *input_section; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - return bfd_reloc_continue; -} - -/* Do a REFHI relocation. This has to be done in combination with a - REFLO reloc, because there is a carry from the REFLO to the REFHI. - Here we just save the information we need; we do the actual - relocation when we see the REFLO. MIPS ECOFF requires that the - REFLO immediately follow the REFHI. As a GNU extension, we permit - an arbitrary number of HI relocs to be associated with a single LO - reloc. This extension permits gcc to output the HI and LO relocs - itself. */ - -struct mips_hi -{ - struct mips_hi *next; - bfd_byte *addr; - bfd_vma addend; -}; - -/* FIXME: This should not be a static variable. */ - -static struct mips_hi *mips_refhi_list; - -static bfd_reloc_status_type -mips_refhi_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_reloc_status_type ret; - bfd_vma relocation; - struct mips_hi *n; - - /* If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - ret = bfd_reloc_ok; - if (bfd_is_und_section (symbol->section) - && output_bfd == (bfd *) NULL) - ret = bfd_reloc_undefined; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - /* Save the information, and let REFLO do the actual relocation. */ - n = (struct mips_hi *) bfd_malloc (sizeof *n); - if (n == NULL) - return bfd_reloc_outofrange; - n->addr = (bfd_byte *) data + reloc_entry->address; - n->addend = relocation; - n->next = mips_refhi_list; - mips_refhi_list = n; - - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* Do a REFLO relocation. This is a straightforward 16 bit inplace - relocation; this function exists in order to do the REFHI - relocation described above. */ - -static bfd_reloc_status_type -mips_reflo_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - if (mips_refhi_list != NULL) - { - struct mips_hi *l; - - l = mips_refhi_list; - while (l != NULL) - { - unsigned long insn; - unsigned long val; - unsigned long vallo; - struct mips_hi *next; - - /* Do the REFHI relocation. Note that we actually don't - need to know anything about the REFLO itself, except - where to find the low 16 bits of the addend needed by the - REFHI. */ - insn = bfd_get_32 (abfd, l->addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += l->addend; - - /* The low order 16 bits are always treated as a signed - value. Therefore, a negative value in the low order bits - requires an adjustment in the high order bits. We need - to make this adjustment in two ways: once for the bits we - took from the data, and once for the bits we are putting - back in to the data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (abfd, insn, l->addr); - - next = l->next; - free (l); - l = next; - } - - mips_refhi_list = NULL; - } - - /* Now do the REFLO reloc in the usual way. */ - return mips_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - -/* Do a GPREL relocation. This is a 16 bit value which must become - the offset from the gp register. */ - -static bfd_reloc_status_type -mips_gprel_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - boolean relocateable; - bfd_vma gp; - bfd_vma relocation; - unsigned long val; - unsigned long insn; - - /* If we're relocating, and this is an external symbol with no - addend, we don't want to change anything. We will only have an - addend if this is a newly created reloc, not read from an ECOFF - file. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != (bfd *) NULL) - relocateable = true; - else - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - } - - if (bfd_is_und_section (symbol->section) - && relocateable == false) - return bfd_reloc_undefined; - - /* We have to figure out the gp value, so that we can adjust the - symbol value correctly. We look up the symbol _gp in the output - BFD. If we can't find it, we're stuck. We cache it in the ECOFF - target data. We don't need to adjust the symbol value for an - external symbol if we are producing relocateable output. */ - gp = _bfd_get_gp_value (output_bfd); - if (gp == 0 - && (relocateable == false - || (symbol->flags & BSF_SECTION_SYM) != 0)) - { - if (relocateable != false) - { - /* Make up a value. */ - gp = symbol->section->output_section->vma + 0x4000; - _bfd_set_gp_value (output_bfd, gp); - } - else - { - unsigned int count; - asymbol **sym; - unsigned int i; - - count = bfd_get_symcount (output_bfd); - sym = bfd_get_outsymbols (output_bfd); - - if (sym == (asymbol **) NULL) - i = count; - else - { - for (i = 0; i < count; i++, sym++) - { - register CONST char *name; - - name = bfd_asymbol_name (*sym); - if (*name == '_' && strcmp (name, "_gp") == 0) - { - gp = bfd_asymbol_value (*sym); - _bfd_set_gp_value (output_bfd, gp); - break; - } - } - } - - if (i >= count) - { - /* Only get the error once. */ - gp = 4; - _bfd_set_gp_value (output_bfd, gp); - *error_message = - (char *) _("GP relative relocation when _gp not defined"); - return bfd_reloc_dangerous; - } - } - } - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - - /* Set val to the offset into the section or symbol. */ - val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; - if (val & 0x8000) - val -= 0x10000; - - /* Adjust val for the final section location and GP value. If we - are producing relocateable output, we don't want to do this for - an external symbol. */ - if (relocateable == false - || (symbol->flags & BSF_SECTION_SYM) != 0) - val += relocation - gp; - - insn = (insn &~ 0xffff) | (val & 0xffff); - bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); - - if (relocateable != false) - reloc_entry->address += input_section->output_offset; - - /* Make sure it fit in 16 bits. */ - if (val >= 0x8000 && val < 0xffff8000) - return bfd_reloc_overflow; - - return bfd_reloc_ok; -} - -/* Do a RELHI relocation. We do this in conjunction with a RELLO - reloc, just as REFHI and REFLO are done together. RELHI and RELLO - are Cygnus extensions used when generating position independent - code for embedded systems. */ - -/* FIXME: This should not be a static variable. */ - -static struct mips_hi *mips_relhi_list; - -static bfd_reloc_status_type -mips_relhi_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_reloc_status_type ret; - bfd_vma relocation; - struct mips_hi *n; - - /* If this is a reloc against a section symbol, then it is correct - in the object file. The only time we want to change this case is - when we are relaxing, and that is handled entirely by - mips_relocate_section and never calls this function. */ - if ((symbol->flags & BSF_SECTION_SYM) != 0) - { - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* This is an external symbol. If we're relocating, we don't want - to change anything. */ - if (output_bfd != (bfd *) NULL) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - ret = bfd_reloc_ok; - if (bfd_is_und_section (symbol->section) - && output_bfd == (bfd *) NULL) - ret = bfd_reloc_undefined; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - /* Save the information, and let RELLO do the actual relocation. */ - n = (struct mips_hi *) bfd_malloc (sizeof *n); - if (n == NULL) - return bfd_reloc_outofrange; - n->addr = (bfd_byte *) data + reloc_entry->address; - n->addend = relocation; - n->next = mips_relhi_list; - mips_relhi_list = n; - - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* Do a RELLO relocation. This is a straightforward 16 bit PC - relative relocation; this function exists in order to do the RELHI - relocation described above. */ - -static bfd_reloc_status_type -mips_rello_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - if (mips_relhi_list != NULL) - { - struct mips_hi *l; - - l = mips_relhi_list; - while (l != NULL) - { - unsigned long insn; - unsigned long val; - unsigned long vallo; - struct mips_hi *next; - - /* Do the RELHI relocation. Note that we actually don't - need to know anything about the RELLO itself, except - where to find the low 16 bits of the addend needed by the - RELHI. */ - insn = bfd_get_32 (abfd, l->addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += l->addend; - - /* If the symbol is defined, make val PC relative. If the - symbol is not defined we don't want to do this, because - we don't want the value in the object file to incorporate - the address of the reloc. */ - if (! bfd_is_und_section (bfd_get_section (symbol)) - && ! bfd_is_com_section (bfd_get_section (symbol))) - val -= (input_section->output_section->vma - + input_section->output_offset - + reloc_entry->address); - - /* The low order 16 bits are always treated as a signed - value. Therefore, a negative value in the low order bits - requires an adjustment in the high order bits. We need - to make this adjustment in two ways: once for the bits we - took from the data, and once for the bits we are putting - back in to the data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (abfd, insn, l->addr); - - next = l->next; - free (l); - l = next; - } - - mips_relhi_list = NULL; - } - - /* If this is a reloc against a section symbol, then it is correct - in the object file. The only time we want to change this case is - when we are relaxing, and that is handled entirely by - mips_relocate_section and never calls this function. */ - if ((symbol->flags & BSF_SECTION_SYM) != 0) - { - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* bfd_perform_relocation does not handle pcrel_offset relocations - correctly when generating a relocateable file, so handle them - directly here. */ - if (output_bfd != (bfd *) NULL) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Now do the RELLO reloc in the usual way. */ - return mips_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - -/* This is the special function for the MIPS_R_SWITCH reloc. This - special reloc is normally correct in the object file, and only - requires special handling when relaxing. We don't want - bfd_perform_relocation to tamper with it at all. */ - -/*ARGSUSED*/ -static bfd_reloc_status_type -mips_switch_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry ATTRIBUTE_UNUSED; - asymbol *symbol ATTRIBUTE_UNUSED; - PTR data ATTRIBUTE_UNUSED; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd ATTRIBUTE_UNUSED; - char **error_message ATTRIBUTE_UNUSED; -{ - return bfd_reloc_ok; -} - -/* Get the howto structure for a generic reloc type. */ - -static reloc_howto_type * -mips_bfd_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - int mips_type; - - switch (code) - { - case BFD_RELOC_16: - mips_type = MIPS_R_REFHALF; - break; - case BFD_RELOC_32: - case BFD_RELOC_CTOR: - mips_type = MIPS_R_REFWORD; - break; - case BFD_RELOC_MIPS_JMP: - mips_type = MIPS_R_JMPADDR; - break; - case BFD_RELOC_HI16_S: - mips_type = MIPS_R_REFHI; - break; - case BFD_RELOC_LO16: - mips_type = MIPS_R_REFLO; - break; - case BFD_RELOC_MIPS_GPREL: - mips_type = MIPS_R_GPREL; - break; - case BFD_RELOC_MIPS_LITERAL: - mips_type = MIPS_R_LITERAL; - break; - case BFD_RELOC_16_PCREL_S2: - mips_type = MIPS_R_PCREL16; - break; - case BFD_RELOC_PCREL_HI16_S: - mips_type = MIPS_R_RELHI; - break; - case BFD_RELOC_PCREL_LO16: - mips_type = MIPS_R_RELLO; - break; - case BFD_RELOC_GPREL32: - mips_type = MIPS_R_SWITCH; - break; - default: - return (reloc_howto_type *) NULL; - } - - return &mips_howto_table[mips_type]; -} - -/* A helper routine for mips_relocate_section which handles the REFHI - and RELHI relocations. The REFHI relocation must be followed by a - REFLO relocation (and RELHI by a RELLO), and the addend used is - formed from the addends of both instructions. */ - -static void -mips_relocate_hi (refhi, reflo, input_bfd, input_section, contents, adjust, - relocation, pcrel) - struct internal_reloc *refhi; - struct internal_reloc *reflo; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - size_t adjust; - bfd_vma relocation; - boolean pcrel; -{ - unsigned long insn; - unsigned long val; - unsigned long vallo; - - if (refhi == NULL) - return; - - insn = bfd_get_32 (input_bfd, - contents + adjust + refhi->r_vaddr - input_section->vma); - if (reflo == NULL) - vallo = 0; - else - vallo = (bfd_get_32 (input_bfd, - contents + adjust + reflo->r_vaddr - input_section->vma) - & 0xffff); - - val = ((insn & 0xffff) << 16) + vallo; - val += relocation; - - /* The low order 16 bits are always treated as a signed value. - Therefore, a negative value in the low order bits requires an - adjustment in the high order bits. We need to make this - adjustment in two ways: once for the bits we took from the data, - and once for the bits we are putting back in to the data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - - if (pcrel) - val -= (input_section->output_section->vma - + input_section->output_offset - + (reflo->r_vaddr - input_section->vma + adjust)); - - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (input_bfd, (bfd_vma) insn, - contents + adjust + refhi->r_vaddr - input_section->vma); -} - -/* Relocate a section while linking a MIPS ECOFF file. */ - -static boolean -mips_relocate_section (output_bfd, info, input_bfd, input_section, - contents, external_relocs) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - PTR external_relocs; -{ - asection **symndx_to_section; - struct ecoff_link_hash_entry **sym_hashes; - bfd_vma gp; - boolean gp_undefined; - size_t adjust; - long *offsets; - struct external_reloc *ext_rel; - struct external_reloc *ext_rel_end; - unsigned int i; - boolean got_lo; - struct internal_reloc lo_int_rel; - - BFD_ASSERT (input_bfd->xvec->byteorder - == output_bfd->xvec->byteorder); - - /* We keep a table mapping the symndx found in an internal reloc to - the appropriate section. This is faster than looking up the - section by name each time. */ - symndx_to_section = ecoff_data (input_bfd)->symndx_to_section; - if (symndx_to_section == (asection **) NULL) - { - symndx_to_section = ((asection **) - bfd_alloc (input_bfd, - (NUM_RELOC_SECTIONS - * sizeof (asection *)))); - if (!symndx_to_section) - return false; - - symndx_to_section[RELOC_SECTION_NONE] = NULL; - symndx_to_section[RELOC_SECTION_TEXT] = - bfd_get_section_by_name (input_bfd, ".text"); - symndx_to_section[RELOC_SECTION_RDATA] = - bfd_get_section_by_name (input_bfd, ".rdata"); - symndx_to_section[RELOC_SECTION_DATA] = - bfd_get_section_by_name (input_bfd, ".data"); - symndx_to_section[RELOC_SECTION_SDATA] = - bfd_get_section_by_name (input_bfd, ".sdata"); - symndx_to_section[RELOC_SECTION_SBSS] = - bfd_get_section_by_name (input_bfd, ".sbss"); - symndx_to_section[RELOC_SECTION_BSS] = - bfd_get_section_by_name (input_bfd, ".bss"); - symndx_to_section[RELOC_SECTION_INIT] = - bfd_get_section_by_name (input_bfd, ".init"); - symndx_to_section[RELOC_SECTION_LIT8] = - bfd_get_section_by_name (input_bfd, ".lit8"); - symndx_to_section[RELOC_SECTION_LIT4] = - bfd_get_section_by_name (input_bfd, ".lit4"); - symndx_to_section[RELOC_SECTION_XDATA] = NULL; - symndx_to_section[RELOC_SECTION_PDATA] = NULL; - symndx_to_section[RELOC_SECTION_FINI] = - bfd_get_section_by_name (input_bfd, ".fini"); - symndx_to_section[RELOC_SECTION_LITA] = NULL; - symndx_to_section[RELOC_SECTION_ABS] = NULL; - - ecoff_data (input_bfd)->symndx_to_section = symndx_to_section; - } - - sym_hashes = ecoff_data (input_bfd)->sym_hashes; - - gp = _bfd_get_gp_value (output_bfd); - if (gp == 0) - gp_undefined = true; - else - gp_undefined = false; - - got_lo = false; - - adjust = 0; - - if (ecoff_section_data (input_bfd, input_section) == NULL) - offsets = NULL; - else - offsets = ecoff_section_data (input_bfd, input_section)->offsets; - - ext_rel = (struct external_reloc *) external_relocs; - ext_rel_end = ext_rel + input_section->reloc_count; - for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++) - { - struct internal_reloc int_rel; - boolean use_lo = false; - bfd_vma addend; - reloc_howto_type *howto; - struct ecoff_link_hash_entry *h = NULL; - asection *s = NULL; - bfd_vma relocation; - bfd_reloc_status_type r; - - if (! got_lo) - mips_ecoff_swap_reloc_in (input_bfd, (PTR) ext_rel, &int_rel); - else - { - int_rel = lo_int_rel; - got_lo = false; - } - - BFD_ASSERT (int_rel.r_type - < sizeof mips_howto_table / sizeof mips_howto_table[0]); - - /* The REFHI and RELHI relocs requires special handling. they - must be followed by a REFLO or RELLO reloc, respectively, and - the addend is formed from both relocs. */ - if (int_rel.r_type == MIPS_R_REFHI - || int_rel.r_type == MIPS_R_RELHI) - { - struct external_reloc *lo_ext_rel; - - /* As a GNU extension, permit an arbitrary number of REFHI - or RELHI relocs before the REFLO or RELLO reloc. This - permits gcc to emit the HI and LO relocs itself. */ - for (lo_ext_rel = ext_rel + 1; - lo_ext_rel < ext_rel_end; - lo_ext_rel++) - { - mips_ecoff_swap_reloc_in (input_bfd, (PTR) lo_ext_rel, - &lo_int_rel); - if (lo_int_rel.r_type != int_rel.r_type) - break; - } - - if (lo_ext_rel < ext_rel_end - && (lo_int_rel.r_type - == (int_rel.r_type == MIPS_R_REFHI - ? MIPS_R_REFLO - : MIPS_R_RELLO)) - && int_rel.r_extern == lo_int_rel.r_extern - && int_rel.r_symndx == lo_int_rel.r_symndx) - { - use_lo = true; - if (lo_ext_rel == ext_rel + 1) - got_lo = true; - } - } - - howto = &mips_howto_table[int_rel.r_type]; - - /* The SWITCH reloc must be handled specially. This reloc is - marks the location of a difference between two portions of an - object file. The symbol index does not reference a symbol, - but is actually the offset from the reloc to the subtrahend - of the difference. This reloc is correct in the object file, - and needs no further adjustment, unless we are relaxing. If - we are relaxing, we may have to add in an offset. Since no - symbols are involved in this reloc, we handle it completely - here. */ - if (int_rel.r_type == MIPS_R_SWITCH) - { - if (offsets != NULL - && offsets[i] != 0) - { - r = _bfd_relocate_contents (howto, input_bfd, - (bfd_vma) offsets[i], - (contents - + adjust - + int_rel.r_vaddr - - input_section->vma)); - BFD_ASSERT (r == bfd_reloc_ok); - } - - continue; - } - - if (int_rel.r_extern) - { - h = sym_hashes[int_rel.r_symndx]; - /* If h is NULL, that means that there is a reloc against an - external symbol which we thought was just a debugging - symbol. This should not happen. */ - if (h == (struct ecoff_link_hash_entry *) NULL) - abort (); - } - else - { - if (int_rel.r_symndx < 0 || int_rel.r_symndx >= NUM_RELOC_SECTIONS) - s = NULL; - else - s = symndx_to_section[int_rel.r_symndx]; - - if (s == (asection *) NULL) - abort (); - } - - /* The GPREL reloc uses an addend: the difference in the GP - values. */ - if (int_rel.r_type != MIPS_R_GPREL - && int_rel.r_type != MIPS_R_LITERAL) - addend = 0; - else - { - if (gp_undefined) - { - if (! ((*info->callbacks->reloc_dangerous) - (info, _("GP relative relocation when GP not defined"), - input_bfd, input_section, - int_rel.r_vaddr - input_section->vma))) - return false; - /* Only give the error once per link. */ - gp = 4; - _bfd_set_gp_value (output_bfd, gp); - gp_undefined = false; - } - if (! int_rel.r_extern) - { - /* This is a relocation against a section. The current - addend in the instruction is the difference between - INPUT_SECTION->vma and the GP value of INPUT_BFD. We - must change this to be the difference between the - final definition (which will end up in RELOCATION) - and the GP value of OUTPUT_BFD (which is in GP). */ - addend = ecoff_data (input_bfd)->gp - gp; - } - else if (! info->relocateable - || h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - /* This is a relocation against a defined symbol. The - current addend in the instruction is simply the - desired offset into the symbol (normally zero). We - are going to change this into a relocation against a - defined symbol, so we want the instruction to hold - the difference between the final definition of the - symbol (which will end up in RELOCATION) and the GP - value of OUTPUT_BFD (which is in GP). */ - addend = - gp; - } - else - { - /* This is a relocation against an undefined or common - symbol. The current addend in the instruction is - simply the desired offset into the symbol (normally - zero). We are generating relocateable output, and we - aren't going to define this symbol, so we just leave - the instruction alone. */ - addend = 0; - } - } - - /* If we are relaxing, mips_relax_section may have set - offsets[i] to some value. A value of 1 means we must expand - a PC relative branch into a multi-instruction of sequence, - and any other value is an addend. */ - if (offsets != NULL - && offsets[i] != 0) - { - BFD_ASSERT (! info->relocateable); - BFD_ASSERT (int_rel.r_type == MIPS_R_PCREL16 - || int_rel.r_type == MIPS_R_RELHI - || int_rel.r_type == MIPS_R_RELLO); - if (offsets[i] != 1) - addend += offsets[i]; - else - { - bfd_byte *here; - - BFD_ASSERT (int_rel.r_extern - && int_rel.r_type == MIPS_R_PCREL16); - - /* Move the rest of the instructions up. */ - here = (contents - + adjust - + int_rel.r_vaddr - - input_section->vma); - memmove (here + PCREL16_EXPANSION_ADJUSTMENT, here, - (size_t) (input_section->_raw_size - - (int_rel.r_vaddr - input_section->vma))); - - /* Generate the new instructions. */ - if (! mips_relax_pcrel16 (info, input_bfd, input_section, - h, here, - (input_section->output_section->vma - + input_section->output_offset - + (int_rel.r_vaddr - - input_section->vma) - + adjust))) - return false; - - /* We must adjust everything else up a notch. */ - adjust += PCREL16_EXPANSION_ADJUSTMENT; - - /* mips_relax_pcrel16 handles all the details of this - relocation. */ - continue; - } - } - - /* If we are relaxing, and this is a reloc against the .text - segment, we may need to adjust it if some branches have been - expanded. The reloc types which are likely to occur in the - .text section are handled efficiently by mips_relax_section, - and thus do not need to be handled here. */ - if (ecoff_data (input_bfd)->debug_info.adjust != NULL - && ! int_rel.r_extern - && int_rel.r_symndx == RELOC_SECTION_TEXT - && (strcmp (bfd_get_section_name (input_bfd, input_section), - ".text") != 0 - || (int_rel.r_type != MIPS_R_PCREL16 - && int_rel.r_type != MIPS_R_SWITCH - && int_rel.r_type != MIPS_R_RELHI - && int_rel.r_type != MIPS_R_RELLO))) - { - bfd_vma adr; - struct ecoff_value_adjust *a; - - /* We need to get the addend so that we know whether we need - to adjust the address. */ - BFD_ASSERT (int_rel.r_type == MIPS_R_REFWORD); - - adr = bfd_get_32 (input_bfd, - (contents - + adjust - + int_rel.r_vaddr - - input_section->vma)); - - for (a = ecoff_data (input_bfd)->debug_info.adjust; - a != (struct ecoff_value_adjust *) NULL; - a = a->next) - { - if (adr >= a->start && adr < a->end) - addend += a->adjust; - } - } - - if (info->relocateable) - { - /* We are generating relocateable output, and must convert - the existing reloc. */ - if (int_rel.r_extern) - { - if ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && ! bfd_is_abs_section (h->root.u.def.section)) - { - const char *name; - - /* This symbol is defined in the output. Convert - the reloc from being against the symbol to being - against the section. */ - - /* Clear the r_extern bit. */ - int_rel.r_extern = 0; - - /* Compute a new r_symndx value. */ - s = h->root.u.def.section; - name = bfd_get_section_name (output_bfd, - s->output_section); - - int_rel.r_symndx = -1; - switch (name[1]) - { - case 'b': - if (strcmp (name, ".bss") == 0) - int_rel.r_symndx = RELOC_SECTION_BSS; - break; - case 'd': - if (strcmp (name, ".data") == 0) - int_rel.r_symndx = RELOC_SECTION_DATA; - break; - case 'f': - if (strcmp (name, ".fini") == 0) - int_rel.r_symndx = RELOC_SECTION_FINI; - break; - case 'i': - if (strcmp (name, ".init") == 0) - int_rel.r_symndx = RELOC_SECTION_INIT; - break; - case 'l': - if (strcmp (name, ".lit8") == 0) - int_rel.r_symndx = RELOC_SECTION_LIT8; - else if (strcmp (name, ".lit4") == 0) - int_rel.r_symndx = RELOC_SECTION_LIT4; - break; - case 'r': - if (strcmp (name, ".rdata") == 0) - int_rel.r_symndx = RELOC_SECTION_RDATA; - break; - case 's': - if (strcmp (name, ".sdata") == 0) - int_rel.r_symndx = RELOC_SECTION_SDATA; - else if (strcmp (name, ".sbss") == 0) - int_rel.r_symndx = RELOC_SECTION_SBSS; - break; - case 't': - if (strcmp (name, ".text") == 0) - int_rel.r_symndx = RELOC_SECTION_TEXT; - break; - } - - if (int_rel.r_symndx == -1) - abort (); - - /* Add the section VMA and the symbol value. */ - relocation = (h->root.u.def.value - + s->output_section->vma - + s->output_offset); - - /* For a PC relative relocation, the object file - currently holds just the addend. We must adjust - by the address to get the right value. */ - if (howto->pc_relative) - { - relocation -= int_rel.r_vaddr - input_section->vma; - - /* If we are converting a RELHI or RELLO reloc - from being against an external symbol to - being against a section, we must put a - special value into the r_offset field. This - value is the old addend. The r_offset for - both the RELHI and RELLO relocs are the same, - and we set both when we see RELHI. */ - if (int_rel.r_type == MIPS_R_RELHI) - { - long addhi, addlo; - - addhi = bfd_get_32 (input_bfd, - (contents - + adjust - + int_rel.r_vaddr - - input_section->vma)); - addhi &= 0xffff; - if (addhi & 0x8000) - addhi -= 0x10000; - addhi <<= 16; - - if (! use_lo) - addlo = 0; - else - { - addlo = bfd_get_32 (input_bfd, - (contents - + adjust - + lo_int_rel.r_vaddr - - input_section->vma)); - addlo &= 0xffff; - if (addlo & 0x8000) - addlo -= 0x10000; - - lo_int_rel.r_offset = addhi + addlo; - } - - int_rel.r_offset = addhi + addlo; - } - } - - h = NULL; - } - else - { - /* Change the symndx value to the right one for the - output BFD. */ - int_rel.r_symndx = h->indx; - if (int_rel.r_symndx == -1) - { - /* This symbol is not being written out. */ - if (! ((*info->callbacks->unattached_reloc) - (info, h->root.root.string, input_bfd, - input_section, - int_rel.r_vaddr - input_section->vma))) - return false; - int_rel.r_symndx = 0; - } - relocation = 0; - } - } - else - { - /* This is a relocation against a section. Adjust the - value by the amount the section moved. */ - relocation = (s->output_section->vma - + s->output_offset - - s->vma); - } - - relocation += addend; - addend = 0; - - /* Adjust a PC relative relocation by removing the reference - to the original address in the section and including the - reference to the new address. However, external RELHI - and RELLO relocs are PC relative, but don't include any - reference to the address. The addend is merely an - addend. */ - if (howto->pc_relative - && (! int_rel.r_extern - || (int_rel.r_type != MIPS_R_RELHI - && int_rel.r_type != MIPS_R_RELLO))) - relocation -= (input_section->output_section->vma - + input_section->output_offset - - input_section->vma); - - /* Adjust the contents. */ - if (relocation == 0) - r = bfd_reloc_ok; - else - { - if (int_rel.r_type != MIPS_R_REFHI - && int_rel.r_type != MIPS_R_RELHI) - r = _bfd_relocate_contents (howto, input_bfd, relocation, - (contents - + adjust - + int_rel.r_vaddr - - input_section->vma)); - else - { - mips_relocate_hi (&int_rel, - use_lo ? &lo_int_rel : NULL, - input_bfd, input_section, contents, - adjust, relocation, - int_rel.r_type == MIPS_R_RELHI); - r = bfd_reloc_ok; - } - } - - /* Adjust the reloc address. */ - int_rel.r_vaddr += (input_section->output_section->vma - + input_section->output_offset - - input_section->vma); - - /* Save the changed reloc information. */ - mips_ecoff_swap_reloc_out (input_bfd, &int_rel, (PTR) ext_rel); - } - else - { - /* We are producing a final executable. */ - if (int_rel.r_extern) - { - /* This is a reloc against a symbol. */ - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *hsec; - - hsec = h->root.u.def.section; - relocation = (h->root.u.def.value - + hsec->output_section->vma - + hsec->output_offset); - } - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, - int_rel.r_vaddr - input_section->vma, true))) - return false; - relocation = 0; - } - } - else - { - /* This is a reloc against a section. */ - relocation = (s->output_section->vma - + s->output_offset - - s->vma); - - /* A PC relative reloc is already correct in the object - file. Make it look like a pcrel_offset relocation by - adding in the start address. */ - if (howto->pc_relative) - { - if (int_rel.r_type != MIPS_R_RELHI || ! use_lo) - relocation += int_rel.r_vaddr + adjust; - else - relocation += lo_int_rel.r_vaddr + adjust; - } - } - - if (int_rel.r_type != MIPS_R_REFHI - && int_rel.r_type != MIPS_R_RELHI) - r = _bfd_final_link_relocate (howto, - input_bfd, - input_section, - contents, - (int_rel.r_vaddr - - input_section->vma - + adjust), - relocation, - addend); - else - { - mips_relocate_hi (&int_rel, - use_lo ? &lo_int_rel : NULL, - input_bfd, input_section, contents, adjust, - relocation, - int_rel.r_type == MIPS_R_RELHI); - r = bfd_reloc_ok; - } - } - - /* MIPS_R_JMPADDR requires peculiar overflow detection. The - instruction provides a 28 bit address (the two lower bits are - implicit zeroes) which is combined with the upper four bits - of the instruction address. */ - if (r == bfd_reloc_ok - && int_rel.r_type == MIPS_R_JMPADDR - && (((relocation - + addend - + (int_rel.r_extern ? 0 : s->vma)) - & 0xf0000000) - != ((input_section->output_section->vma - + input_section->output_offset - + (int_rel.r_vaddr - input_section->vma) - + adjust) - & 0xf0000000))) - r = bfd_reloc_overflow; - - if (r != bfd_reloc_ok) - { - switch (r) - { - default: - case bfd_reloc_outofrange: - abort (); - case bfd_reloc_overflow: - { - const char *name; - - if (int_rel.r_extern) - name = h->root.root.string; - else - name = bfd_section_name (input_bfd, s); - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, - input_bfd, input_section, - int_rel.r_vaddr - input_section->vma))) - return false; - } - break; - } - } - } - - return true; -} - -/* Read in the relocs for a section. */ - -static boolean -mips_read_relocs (abfd, sec) - bfd *abfd; - asection *sec; -{ - struct ecoff_section_tdata *section_tdata; - - section_tdata = ecoff_section_data (abfd, sec); - if (section_tdata == (struct ecoff_section_tdata *) NULL) - { - sec->used_by_bfd = - (PTR) bfd_alloc (abfd, sizeof (struct ecoff_section_tdata)); - if (sec->used_by_bfd == NULL) - return false; - - section_tdata = ecoff_section_data (abfd, sec); - section_tdata->external_relocs = NULL; - section_tdata->contents = NULL; - section_tdata->offsets = NULL; - } - - if (section_tdata->external_relocs == NULL) - { - bfd_size_type external_relocs_size; - - external_relocs_size = (ecoff_backend (abfd)->external_reloc_size - * sec->reloc_count); - - section_tdata->external_relocs = - (PTR) bfd_alloc (abfd, external_relocs_size); - if (section_tdata->external_relocs == NULL && external_relocs_size != 0) - return false; - - if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 - || (bfd_read (section_tdata->external_relocs, 1, - external_relocs_size, abfd) - != external_relocs_size)) - return false; - } - - return true; -} - -/* Relax a section when linking a MIPS ECOFF file. This is used for - embedded PIC code, which always uses PC relative branches which - only have an 18 bit range on MIPS. If a branch is not in range, we - generate a long instruction sequence to compensate. Each time we - find a branch to expand, we have to check all the others again to - make sure they are still in range. This is slow, but it only has - to be done when -relax is passed to the linker. - - This routine figures out which branches need to expand; the actual - expansion is done in mips_relocate_section when the section - contents are relocated. The information is stored in the offsets - field of the ecoff_section_tdata structure. An offset of 1 means - that the branch must be expanded into a multi-instruction PC - relative branch (such an offset will only occur for a PC relative - branch to an external symbol). Any other offset must be a multiple - of four, and is the amount to change the branch by (such an offset - will only occur for a PC relative branch within the same section). - - We do not modify the section relocs or contents themselves so that - if memory usage becomes an issue we can discard them and read them - again. The only information we must save in memory between this - routine and the mips_relocate_section routine is the table of - offsets. */ - -static boolean -mips_relax_section (abfd, sec, info, again) - bfd *abfd; - asection *sec; - struct bfd_link_info *info; - boolean *again; -{ - struct ecoff_section_tdata *section_tdata; - bfd_byte *contents = NULL; - long *offsets; - struct external_reloc *ext_rel; - struct external_reloc *ext_rel_end; - unsigned int i; - - /* Assume we are not going to need another pass. */ - *again = false; - - /* If we are not generating an ECOFF file, this is much too - confusing to deal with. */ - if (info->hash->creator->flavour != bfd_get_flavour (abfd)) - return true; - - /* If there are no relocs, there is nothing to do. */ - if (sec->reloc_count == 0) - return true; - - /* We are only interested in PC relative relocs, and why would there - ever be one from anything but the .text section? */ - if (strcmp (bfd_get_section_name (abfd, sec), ".text") != 0) - return true; - - /* Read in the relocs, if we haven't already got them. */ - section_tdata = ecoff_section_data (abfd, sec); - if (section_tdata == (struct ecoff_section_tdata *) NULL - || section_tdata->external_relocs == NULL) - { - if (! mips_read_relocs (abfd, sec)) - goto error_return; - section_tdata = ecoff_section_data (abfd, sec); - } - - if (sec->_cooked_size == 0) - { - /* We must initialize _cooked_size only the first time we are - called. */ - sec->_cooked_size = sec->_raw_size; - } - - contents = section_tdata->contents; - offsets = section_tdata->offsets; - - /* Look for any external PC relative relocs. Internal PC relative - relocs are already correct in the object file, so they certainly - can not overflow. */ - ext_rel = (struct external_reloc *) section_tdata->external_relocs; - ext_rel_end = ext_rel + sec->reloc_count; - for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++) - { - struct internal_reloc int_rel; - struct ecoff_link_hash_entry *h; - asection *hsec; - bfd_signed_vma relocation; - struct external_reloc *adj_ext_rel; - unsigned int adj_i; - unsigned long ext_count; - struct ecoff_link_hash_entry **adj_h_ptr; - struct ecoff_link_hash_entry **adj_h_ptr_end; - struct ecoff_value_adjust *adjust; - - /* If we have already expanded this reloc, we certainly don't - need to do it again. */ - if (offsets != (long *) NULL && offsets[i] == 1) - continue; - - /* Quickly check that this reloc is external PCREL16. */ - if (bfd_header_big_endian (abfd)) - { - if ((ext_rel->r_bits[3] & RELOC_BITS3_EXTERN_BIG) == 0 - || (((ext_rel->r_bits[3] & RELOC_BITS3_TYPE_BIG) - >> RELOC_BITS3_TYPE_SH_BIG) - != MIPS_R_PCREL16)) - continue; - } - else - { - if ((ext_rel->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) == 0 - || (((ext_rel->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) - >> RELOC_BITS3_TYPE_SH_LITTLE) - != MIPS_R_PCREL16)) - continue; - } - - mips_ecoff_swap_reloc_in (abfd, (PTR) ext_rel, &int_rel); - - h = ecoff_data (abfd)->sym_hashes[int_rel.r_symndx]; - if (h == (struct ecoff_link_hash_entry *) NULL) - abort (); - - if (h->root.type != bfd_link_hash_defined - && h->root.type != bfd_link_hash_defweak) - { - /* Just ignore undefined symbols. These will presumably - generate an error later in the link. */ - continue; - } - - /* Get the value of the symbol. */ - hsec = h->root.u.def.section; - relocation = (h->root.u.def.value - + hsec->output_section->vma - + hsec->output_offset); - - /* Subtract out the current address. */ - relocation -= (sec->output_section->vma - + sec->output_offset - + (int_rel.r_vaddr - sec->vma)); - - /* The addend is stored in the object file. In the normal case - of ``bal symbol'', the addend will be -4. It will only be - different in the case of ``bal symbol+constant''. To avoid - always reading in the section contents, we don't check the - addend in the object file (we could easily check the contents - if we happen to have already read them in, but I fear that - this could be confusing). This means we will screw up if - there is a branch to a symbol that is in range, but added to - a constant which puts it out of range; in such a case the - link will fail with a reloc overflow error. Since the - compiler will never generate such code, it should be easy - enough to work around it by changing the assembly code in the - source file. */ - relocation -= 4; - - /* Now RELOCATION is the number we want to put in the object - file. See whether it fits. */ - if (relocation >= -0x20000 && relocation < 0x20000) - continue; - - /* Now that we know this reloc needs work, which will rarely - happen, go ahead and grab the section contents. */ - if (contents == (bfd_byte *) NULL) - { - if (info->keep_memory) - contents = (bfd_byte *) bfd_alloc (abfd, sec->_raw_size); - else - contents = (bfd_byte *) bfd_malloc ((size_t) sec->_raw_size); - if (contents == (bfd_byte *) NULL) - goto error_return; - if (! bfd_get_section_contents (abfd, sec, (PTR) contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - if (info->keep_memory) - section_tdata->contents = contents; - } - - /* We only support changing the bal instruction. It would be - possible to handle other PC relative branches, but some of - them (the conditional branches) would require a different - length instruction sequence which would complicate both this - routine and mips_relax_pcrel16. It could be written if - somebody felt it were important. Ignoring this reloc will - presumably cause a reloc overflow error later on. */ - if (bfd_get_32 (abfd, contents + int_rel.r_vaddr - sec->vma) - != 0x0411ffff) /* bgezal $0,. == bal . */ - continue; - - /* Bother. We need to expand this reloc, and we will need to - make another relaxation pass since this change may put other - relocs out of range. We need to examine the local branches - and we need to allocate memory to hold the offsets we must - add to them. We also need to adjust the values of all - symbols in the object file following this location. */ - - sec->_cooked_size += PCREL16_EXPANSION_ADJUSTMENT; - *again = true; - - if (offsets == (long *) NULL) - { - size_t size; - - size = sec->reloc_count * sizeof (long); - offsets = (long *) bfd_alloc (abfd, size); - if (offsets == (long *) NULL) - goto error_return; - memset (offsets, 0, size); - section_tdata->offsets = offsets; - } - - offsets[i] = 1; - - /* Now look for all PC relative references that cross this reloc - and adjust their offsets. */ - adj_ext_rel = (struct external_reloc *) section_tdata->external_relocs; - for (adj_i = 0; adj_ext_rel < ext_rel_end; adj_ext_rel++, adj_i++) - { - struct internal_reloc adj_int_rel; - bfd_vma start, stop; - int change; - - mips_ecoff_swap_reloc_in (abfd, (PTR) adj_ext_rel, &adj_int_rel); - - if (adj_int_rel.r_type == MIPS_R_PCREL16) - { - unsigned long insn; - - /* We only care about local references. External ones - will be relocated correctly anyhow. */ - if (adj_int_rel.r_extern) - continue; - - /* We are only interested in a PC relative reloc within - this section. FIXME: Cross section PC relative - relocs may not be handled correctly; does anybody - care? */ - if (adj_int_rel.r_symndx != RELOC_SECTION_TEXT) - continue; - - start = adj_int_rel.r_vaddr; - - insn = bfd_get_32 (abfd, - contents + adj_int_rel.r_vaddr - sec->vma); - - stop = (insn & 0xffff) << 2; - if ((stop & 0x20000) != 0) - stop -= 0x40000; - stop += adj_int_rel.r_vaddr + 4; - } - else if (adj_int_rel.r_type == MIPS_R_RELHI) - { - struct internal_reloc rello; - long addhi, addlo; - - /* The next reloc must be MIPS_R_RELLO, and we handle - them together. */ - BFD_ASSERT (adj_ext_rel + 1 < ext_rel_end); - - mips_ecoff_swap_reloc_in (abfd, (PTR) (adj_ext_rel + 1), &rello); - - BFD_ASSERT (rello.r_type == MIPS_R_RELLO); - - addhi = bfd_get_32 (abfd, - contents + adj_int_rel.r_vaddr - sec->vma); - addhi &= 0xffff; - if (addhi & 0x8000) - addhi -= 0x10000; - addhi <<= 16; - - addlo = bfd_get_32 (abfd, contents + rello.r_vaddr - sec->vma); - addlo &= 0xffff; - if (addlo & 0x8000) - addlo -= 0x10000; - - if (adj_int_rel.r_extern) - { - /* The value we want here is - sym - RELLOaddr + addend - which we can express as - sym - (RELLOaddr - addend) - Therefore if we are expanding the area between - RELLOaddr and RELLOaddr - addend we must adjust - the addend. This is admittedly ambiguous, since - we might mean (sym + addend) - RELLOaddr, but in - practice we don't, and there is no way to handle - that case correctly since at this point we have - no idea whether any reloc is being expanded - between sym and sym + addend. */ - start = rello.r_vaddr - (addhi + addlo); - stop = rello.r_vaddr; - } - else - { - /* An internal RELHI/RELLO pair represents the - difference between two addresses, $LC0 - foo. - The symndx value is actually the difference - between the reloc address and $LC0. This lets us - compute $LC0, and, by considering the addend, - foo. If the reloc we are expanding falls between - those two relocs, we must adjust the addend. At - this point, the symndx value is actually in the - r_offset field, where it was put by - mips_ecoff_swap_reloc_in. */ - start = rello.r_vaddr - adj_int_rel.r_offset; - stop = start + addhi + addlo; - } - } - else if (adj_int_rel.r_type == MIPS_R_SWITCH) - { - /* A MIPS_R_SWITCH reloc represents a word of the form - .word $L3-$LS12 - The value in the object file is correct, assuming the - original value of $L3. The symndx value is actually - the difference between the reloc address and $LS12. - This lets us compute the original value of $LS12 as - vaddr - symndx - and the original value of $L3 as - vaddr - symndx + addend - where addend is the value from the object file. At - this point, the symndx value is actually found in the - r_offset field, since it was moved by - mips_ecoff_swap_reloc_in. */ - start = adj_int_rel.r_vaddr - adj_int_rel.r_offset; - stop = start + bfd_get_32 (abfd, - (contents - + adj_int_rel.r_vaddr - - sec->vma)); - } - else - continue; - - /* If the range expressed by this reloc, which is the - distance between START and STOP crosses the reloc we are - expanding, we must adjust the offset. The sign of the - adjustment depends upon the direction in which the range - crosses the reloc being expanded. */ - if (start <= int_rel.r_vaddr && stop > int_rel.r_vaddr) - change = PCREL16_EXPANSION_ADJUSTMENT; - else if (start > int_rel.r_vaddr && stop <= int_rel.r_vaddr) - change = - PCREL16_EXPANSION_ADJUSTMENT; - else - change = 0; - - offsets[adj_i] += change; - - if (adj_int_rel.r_type == MIPS_R_RELHI) - { - adj_ext_rel++; - adj_i++; - offsets[adj_i] += change; - } - } - - /* Find all symbols in this section defined by this object file - and adjust their values. Note that we decide whether to - adjust the value based on the value stored in the ECOFF EXTR - structure, because the value stored in the hash table may - have been changed by an earlier expanded reloc and thus may - no longer correctly indicate whether the symbol is before or - after the expanded reloc. */ - ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; - adj_h_ptr = ecoff_data (abfd)->sym_hashes; - adj_h_ptr_end = adj_h_ptr + ext_count; - for (; adj_h_ptr < adj_h_ptr_end; adj_h_ptr++) - { - struct ecoff_link_hash_entry *adj_h; - - adj_h = *adj_h_ptr; - if (adj_h != (struct ecoff_link_hash_entry *) NULL - && (adj_h->root.type == bfd_link_hash_defined - || adj_h->root.type == bfd_link_hash_defweak) - && adj_h->root.u.def.section == sec - && adj_h->esym.asym.value > int_rel.r_vaddr) - adj_h->root.u.def.value += PCREL16_EXPANSION_ADJUSTMENT; - } - - /* Add an entry to the symbol value adjust list. This is used - by bfd_ecoff_debug_accumulate to adjust the values of - internal symbols and FDR's. */ - adjust = ((struct ecoff_value_adjust *) - bfd_alloc (abfd, sizeof (struct ecoff_value_adjust))); - if (adjust == (struct ecoff_value_adjust *) NULL) - goto error_return; - - adjust->start = int_rel.r_vaddr; - adjust->end = sec->vma + sec->_raw_size; - adjust->adjust = PCREL16_EXPANSION_ADJUSTMENT; - - adjust->next = ecoff_data (abfd)->debug_info.adjust; - ecoff_data (abfd)->debug_info.adjust = adjust; - } - - if (contents != (bfd_byte *) NULL && ! info->keep_memory) - free (contents); - - return true; - - error_return: - if (contents != (bfd_byte *) NULL && ! info->keep_memory) - free (contents); - return false; -} - -/* This routine is called from mips_relocate_section when a PC - relative reloc must be expanded into the five instruction sequence. - It handles all the details of the expansion, including resolving - the reloc. */ - -static boolean -mips_relax_pcrel16 (info, input_bfd, input_section, h, location, address) - struct bfd_link_info *info ATTRIBUTE_UNUSED; - bfd *input_bfd; - asection *input_section ATTRIBUTE_UNUSED; - struct ecoff_link_hash_entry *h; - bfd_byte *location; - bfd_vma address; -{ - bfd_vma relocation; - - /* 0x0411ffff is bgezal $0,. == bal . */ - BFD_ASSERT (bfd_get_32 (input_bfd, location) == 0x0411ffff); - - /* We need to compute the distance between the symbol and the - current address plus eight. */ - relocation = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - relocation -= address + 8; - - /* If the lower half is negative, increment the upper 16 half. */ - if ((relocation & 0x8000) != 0) - relocation += 0x10000; - - bfd_put_32 (input_bfd, 0x04110001, location); /* bal .+8 */ - bfd_put_32 (input_bfd, - 0x3c010000 | ((relocation >> 16) & 0xffff), /* lui $at,XX */ - location + 4); - bfd_put_32 (input_bfd, - 0x24210000 | (relocation & 0xffff), /* addiu $at,$at,XX */ - location + 8); - bfd_put_32 (input_bfd, 0x003f0821, location + 12); /* addu $at,$at,$ra */ - bfd_put_32 (input_bfd, 0x0020f809, location + 16); /* jalr $at */ - - return true; -} - -/* Given a .sdata section and a .rel.sdata in-memory section, store - relocation information into the .rel.sdata section which can be - used at runtime to relocate the section. This is called by the - linker when the --embedded-relocs switch is used. This is called - after the add_symbols entry point has been called for all the - objects, and before the final_link entry point is called. This - function presumes that the object was compiled using - -membedded-pic. */ - -boolean -bfd_mips_ecoff_create_embedded_relocs (abfd, info, datasec, relsec, errmsg) - bfd *abfd; - struct bfd_link_info *info; - asection *datasec; - asection *relsec; - char **errmsg; -{ - struct ecoff_link_hash_entry **sym_hashes; - struct ecoff_section_tdata *section_tdata; - struct external_reloc *ext_rel; - struct external_reloc *ext_rel_end; - bfd_byte *p; - - BFD_ASSERT (! info->relocateable); - - *errmsg = NULL; - - if (datasec->reloc_count == 0) - return true; - - sym_hashes = ecoff_data (abfd)->sym_hashes; - - if (! mips_read_relocs (abfd, datasec)) - return false; - - relsec->contents = (bfd_byte *) bfd_alloc (abfd, datasec->reloc_count * 4); - if (relsec->contents == NULL) - return false; - - p = relsec->contents; - - section_tdata = ecoff_section_data (abfd, datasec); - ext_rel = (struct external_reloc *) section_tdata->external_relocs; - ext_rel_end = ext_rel + datasec->reloc_count; - for (; ext_rel < ext_rel_end; ext_rel++, p += 4) - { - struct internal_reloc int_rel; - boolean text_relative; - - mips_ecoff_swap_reloc_in (abfd, (PTR) ext_rel, &int_rel); - - /* We are going to write a four byte word into the runtime reloc - section. The word will be the address in the data section - which must be relocated. This must be on a word boundary, - which means the lower two bits must be zero. We use the - least significant bit to indicate how the value in the data - section must be relocated. A 0 means that the value is - relative to the text section, while a 1 indicates that the - value is relative to the data section. Given that we are - assuming the code was compiled using -membedded-pic, there - should not be any other possibilities. */ - - /* We can only relocate REFWORD relocs at run time. */ - if (int_rel.r_type != MIPS_R_REFWORD) - { - *errmsg = _("unsupported reloc type"); - bfd_set_error (bfd_error_bad_value); - return false; - } - - if (int_rel.r_extern) - { - struct ecoff_link_hash_entry *h; - - h = sym_hashes[int_rel.r_symndx]; - /* If h is NULL, that means that there is a reloc against an - external symbol which we thought was just a debugging - symbol. This should not happen. */ - if (h == (struct ecoff_link_hash_entry *) NULL) - abort (); - if ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && (h->root.u.def.section->flags & SEC_CODE) != 0) - text_relative = true; - else - text_relative = false; - } - else - { - switch (int_rel.r_symndx) - { - case RELOC_SECTION_TEXT: - text_relative = true; - break; - case RELOC_SECTION_SDATA: - case RELOC_SECTION_SBSS: - case RELOC_SECTION_LIT8: - text_relative = false; - break; - default: - /* No other sections should appear in -membedded-pic - code. */ - *errmsg = _("reloc against unsupported section"); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - - if ((int_rel.r_offset & 3) != 0) - { - *errmsg = _("reloc not properly aligned"); - bfd_set_error (bfd_error_bad_value); - return false; - } - - bfd_put_32 (abfd, - (int_rel.r_vaddr - datasec->vma + datasec->output_offset - + (text_relative ? 0 : 1)), - p); - } - - return true; -} - -/* This is the ECOFF backend structure. The backend field of the - target vector points to this. */ - -static const struct ecoff_backend_data mips_ecoff_backend_data = -{ - /* COFF backend structure. */ - { - (void (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR))) bfd_void, /* aux_in */ - (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */ - (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */ - (unsigned (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR)))bfd_void,/*aux_out*/ - (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */ - (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */ - (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */ - mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out, - mips_ecoff_swap_scnhdr_out, - FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, FILNMLEN, true, false, 4, - mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in, - mips_ecoff_swap_scnhdr_in, NULL, - mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, - _bfd_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags, - _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL - }, - /* Supported architecture. */ - bfd_arch_mips, - /* Initial portion of armap string. */ - "__________", - /* The page boundary used to align sections in a demand-paged - executable file. E.g., 0x1000. */ - 0x1000, - /* True if the .rdata section is part of the text segment, as on the - Alpha. False if .rdata is part of the data segment, as on the - MIPS. */ - false, - /* Bitsize of constructor entries. */ - 32, - /* Reloc to use for constructor entries. */ - &mips_howto_table[MIPS_R_REFWORD], - { - /* Symbol table magic number. */ - magicSym, - /* Alignment of debugging information. E.g., 4. */ - 4, - /* Sizes of external symbolic information. */ - sizeof (struct hdr_ext), - sizeof (struct dnr_ext), - sizeof (struct pdr_ext), - sizeof (struct sym_ext), - sizeof (struct opt_ext), - sizeof (struct fdr_ext), - sizeof (struct rfd_ext), - sizeof (struct ext_ext), - /* Functions to swap in external symbolic data. */ - ecoff_swap_hdr_in, - ecoff_swap_dnr_in, - ecoff_swap_pdr_in, - ecoff_swap_sym_in, - ecoff_swap_opt_in, - ecoff_swap_fdr_in, - ecoff_swap_rfd_in, - ecoff_swap_ext_in, - _bfd_ecoff_swap_tir_in, - _bfd_ecoff_swap_rndx_in, - /* Functions to swap out external symbolic data. */ - ecoff_swap_hdr_out, - ecoff_swap_dnr_out, - ecoff_swap_pdr_out, - ecoff_swap_sym_out, - ecoff_swap_opt_out, - ecoff_swap_fdr_out, - ecoff_swap_rfd_out, - ecoff_swap_ext_out, - _bfd_ecoff_swap_tir_out, - _bfd_ecoff_swap_rndx_out, - /* Function to read in symbolic data. */ - _bfd_ecoff_slurp_symbolic_info - }, - /* External reloc size. */ - RELSZ, - /* Reloc swapping functions. */ - mips_ecoff_swap_reloc_in, - mips_ecoff_swap_reloc_out, - /* Backend reloc tweaking. */ - mips_adjust_reloc_in, - mips_adjust_reloc_out, - /* Relocate section contents while linking. */ - mips_relocate_section, - /* Do final adjustments to filehdr and aouthdr. */ - NULL, - /* Read an element from an archive at a given file position. */ - _bfd_get_elt_at_filepos -}; - -/* Looking up a reloc type is MIPS specific. */ -#define _bfd_ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup - -/* Getting relocated section contents is generic. */ -#define _bfd_ecoff_bfd_get_relocated_section_contents \ - bfd_generic_get_relocated_section_contents - -/* Handling file windows is generic. */ -#define _bfd_ecoff_get_section_contents_in_window \ - _bfd_generic_get_section_contents_in_window - -/* Relaxing sections is MIPS specific. */ -#define _bfd_ecoff_bfd_relax_section mips_relax_section - -/* GC of sections is not done. */ -#define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections - -extern const bfd_target ecoff_big_vec; - -const bfd_target ecoff_little_vec = -{ - "ecoff-littlemips", /* name */ - bfd_target_ecoff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - 0, /* leading underscore */ - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - _bfd_ecoff_archive_p, _bfd_dummy_target}, - {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), - BFD_JUMP_TABLE_COPY (_bfd_ecoff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), - BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), - BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), - BFD_JUMP_TABLE_WRITE (_bfd_ecoff), - BFD_JUMP_TABLE_LINK (_bfd_ecoff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - & ecoff_big_vec, - - (PTR) &mips_ecoff_backend_data -}; - -const bfd_target ecoff_big_vec = -{ - "ecoff-bigmips", /* name */ - bfd_target_ecoff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - 0, /* leading underscore */ - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - _bfd_ecoff_archive_p, _bfd_dummy_target}, - {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), - BFD_JUMP_TABLE_COPY (_bfd_ecoff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), - BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), - BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), - BFD_JUMP_TABLE_WRITE (_bfd_ecoff), - BFD_JUMP_TABLE_LINK (_bfd_ecoff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - & ecoff_little_vec, - - (PTR) &mips_ecoff_backend_data -}; - -const bfd_target ecoff_biglittle_vec = -{ - "ecoff-biglittlemips", /* name */ - bfd_target_ecoff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - 0, /* leading underscore */ - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - _bfd_ecoff_archive_p, _bfd_dummy_target}, - {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), - BFD_JUMP_TABLE_COPY (_bfd_ecoff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), - BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), - BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), - BFD_JUMP_TABLE_WRITE (_bfd_ecoff), - BFD_JUMP_TABLE_LINK (_bfd_ecoff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - (PTR) &mips_ecoff_backend_data -}; diff --git a/contrib/binutils/bfd/coff-sh.c b/contrib/binutils/bfd/coff-sh.c deleted file mode 100644 index fd4f2180bce37..0000000000000 --- a/contrib/binutils/bfd/coff-sh.c +++ /dev/null @@ -1,2944 +0,0 @@ -/* BFD back-end for Hitachi Super-H COFF binaries. - Copyright 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. - Contributed by Cygnus Support. - Written by Steve Chamberlain, <sac@cygnus.com>. - Relaxing code written by Ian Lance Taylor, <ian@cygnus.com>. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "bfdlink.h" -#include "coff/sh.h" -#include "coff/internal.h" -#include "libcoff.h" - -/* Internal functions. */ -static bfd_reloc_status_type sh_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static long get_symbol_value PARAMS ((asymbol *)); -static boolean sh_merge_private_data PARAMS ((bfd *, bfd *)); -static boolean sh_relax_section - PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); -static boolean sh_relax_delete_bytes - PARAMS ((bfd *, asection *, bfd_vma, int)); -static const struct sh_opcode *sh_insn_info PARAMS ((unsigned int)); -static boolean sh_align_loads - PARAMS ((bfd *, asection *, struct internal_reloc *, bfd_byte *, boolean *)); -static boolean sh_swap_insns - PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma)); -static boolean sh_relocate_section - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - struct internal_reloc *, struct internal_syment *, asection **)); -static bfd_byte *sh_coff_get_relocated_section_contents - PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, - bfd_byte *, boolean, asymbol **)); - -/* Default section alignment to 2**4. */ -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (4) - -/* Generate long file names. */ -#define COFF_LONG_FILENAMES - -/* The supported relocations. There are a lot of relocations defined - in coff/internal.h which we do not expect to ever see. */ -static reloc_howto_type sh_coff_howtos[] = -{ - { 0 }, - { 1 }, - { 2 }, - { 3 }, /* R_SH_PCREL8 */ - { 4 }, /* R_SH_PCREL16 */ - { 5 }, /* R_SH_HIGH8 */ - { 6 }, /* R_SH_IMM24 */ - { 7 }, /* R_SH_LOW16 */ - { 8 }, - { 9 }, /* R_SH_PCDISP8BY4 */ - - HOWTO (R_SH_PCDISP8BY2, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_pcdisp8by2", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - { 11 }, /* R_SH_PCDISP8 */ - - HOWTO (R_SH_PCDISP, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 12, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_pcdisp12by2", /* name */ - true, /* partial_inplace */ - 0xfff, /* src_mask */ - 0xfff, /* dst_mask */ - true), /* pcrel_offset */ - - { 13 }, - - HOWTO (R_SH_IMM32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_imm32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - { 15 }, - { 16 }, /* R_SH_IMM8 */ - { 17 }, /* R_SH_IMM8BY2 */ - { 18 }, /* R_SH_IMM8BY4 */ - { 19 }, /* R_SH_IMM4 */ - { 20 }, /* R_SH_IMM4BY2 */ - { 21 }, /* R_SH_IMM4BY4 */ - - HOWTO (R_SH_PCRELIMM8BY2, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_pcrelimm8by2", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - HOWTO (R_SH_PCRELIMM8BY4, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_pcrelimm8by4", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - HOWTO (R_SH_IMM16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_imm16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_SWITCH16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_switch16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_SWITCH32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_switch32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_USES, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_uses", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_COUNT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_count", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_ALIGN, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_align", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_CODE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_code", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_DATA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_data", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_LABEL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_label", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_SH_SWITCH8, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_reloc, /* special_function */ - "r_switch8", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - false) /* pcrel_offset */ -}; - -#define SH_COFF_HOWTO_COUNT (sizeof sh_coff_howtos / sizeof sh_coff_howtos[0]) - -/* Check for a bad magic number. */ -#define BADMAG(x) SHBADMAG(x) - -/* Customize coffcode.h (this is not currently used). */ -#define SH 1 - -/* FIXME: This should not be set here. */ -#define __A_MAGIC_SET__ - -/* Swap the r_offset field in and out. */ -#define SWAP_IN_RELOC_OFFSET bfd_h_get_32 -#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 - -/* Swap out extra information in the reloc structure. */ -#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ - do \ - { \ - dst->r_stuff[0] = 'S'; \ - dst->r_stuff[1] = 'C'; \ - } \ - while (0) - -/* Get the value of a symbol, when performing a relocation. */ - -static long -get_symbol_value (symbol) - asymbol *symbol; -{ - bfd_vma relocation; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = (symbol->value + - symbol->section->output_section->vma + - symbol->section->output_offset); - - return relocation; -} - -/* This macro is used in coffcode.h to get the howto corresponding to - an internal reloc. */ - -#define RTYPE2HOWTO(relent, internal) \ - ((relent)->howto = \ - ((internal)->r_type < SH_COFF_HOWTO_COUNT \ - ? &sh_coff_howtos[(internal)->r_type] \ - : (reloc_howto_type *) NULL)) - -/* This is the same as the macro in coffcode.h, except that it copies - r_offset into reloc_entry->addend for some relocs. */ -#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ - { \ - coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ - if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ - coffsym = (obj_symbols (abfd) \ - + (cache_ptr->sym_ptr_ptr - symbols)); \ - else if (ptr) \ - coffsym = coff_symbol_from (abfd, ptr); \ - if (coffsym != (coff_symbol_type *) NULL \ - && coffsym->native->u.syment.n_scnum == 0) \ - cache_ptr->addend = 0; \ - else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ - && ptr->section != (asection *) NULL) \ - cache_ptr->addend = - (ptr->section->vma + ptr->value); \ - else \ - cache_ptr->addend = 0; \ - if ((reloc).r_type == R_SH_SWITCH8 \ - || (reloc).r_type == R_SH_SWITCH16 \ - || (reloc).r_type == R_SH_SWITCH32 \ - || (reloc).r_type == R_SH_USES \ - || (reloc).r_type == R_SH_COUNT \ - || (reloc).r_type == R_SH_ALIGN) \ - cache_ptr->addend = (reloc).r_offset; \ - } - -/* This is the howto function for the SH relocations. */ - -static bfd_reloc_status_type -sh_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol_in; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - unsigned long insn; - bfd_vma sym_value; - unsigned short r_type; - bfd_vma addr = reloc_entry->address; - bfd_byte *hit_data = addr + (bfd_byte *) data; - - r_type = reloc_entry->howto->type; - - if (output_bfd != NULL) - { - /* Partial linking--do nothing. */ - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Almost all relocs have to do with relaxing. If any work must be - done for them, it has been done in sh_relax_section. */ - if (r_type != R_SH_IMM32 - && (r_type != R_SH_PCDISP - || (symbol_in->flags & BSF_LOCAL) != 0)) - return bfd_reloc_ok; - - if (symbol_in != NULL - && bfd_is_und_section (symbol_in->section)) - return bfd_reloc_undefined; - - sym_value = get_symbol_value (symbol_in); - - switch (r_type) - { - case R_SH_IMM32: - insn = bfd_get_32 (abfd, hit_data); - insn += sym_value + reloc_entry->addend; - bfd_put_32 (abfd, insn, hit_data); - break; - case R_SH_PCDISP: - insn = bfd_get_16 (abfd, hit_data); - sym_value += reloc_entry->addend; - sym_value -= (input_section->output_section->vma - + input_section->output_offset - + addr - + 4); - sym_value += (insn & 0xfff) << 1; - if (insn & 0x800) - sym_value -= 0x1000; - insn = (insn & 0xf000) | (sym_value & 0xfff); - bfd_put_16 (abfd, insn, hit_data); - if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000) - return bfd_reloc_overflow; - break; - default: - abort (); - break; - } - - return bfd_reloc_ok; -} - -/* This routine checks for linking big and little endian objects - together. */ - -static boolean -sh_merge_private_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - if (ibfd->xvec->byteorder != obfd->xvec->byteorder - && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) - { - (*_bfd_error_handler) - ("%s: compiled for a %s endian system and target is %s endian", - bfd_get_filename (ibfd), - bfd_big_endian (ibfd) ? "big" : "little", - bfd_big_endian (obfd) ? "big" : "little"); - - bfd_set_error (bfd_error_wrong_format); - return false; - } - - return true; -} - -#define coff_bfd_merge_private_bfd_data sh_merge_private_data - -/* We can do relaxing. */ -#define coff_bfd_relax_section sh_relax_section - -/* We use the special COFF backend linker. */ -#define coff_relocate_section sh_relocate_section - -/* When relaxing, we need to use special code to get the relocated - section contents. */ -#define coff_bfd_get_relocated_section_contents \ - sh_coff_get_relocated_section_contents - -#include "coffcode.h" - -/* This function handles relaxing on the SH. - - Function calls on the SH look like this: - - movl L1,r0 - ... - jsr @r0 - ... - L1: - .long function - - The compiler and assembler will cooperate to create R_SH_USES - relocs on the jsr instructions. The r_offset field of the - R_SH_USES reloc is the PC relative offset to the instruction which - loads the register (the r_offset field is computed as though it - were a jump instruction, so the offset value is actually from four - bytes past the instruction). The linker can use this reloc to - determine just which function is being called, and thus decide - whether it is possible to replace the jsr with a bsr. - - If multiple function calls are all based on a single register load - (i.e., the same function is called multiple times), the compiler - guarantees that each function call will have an R_SH_USES reloc. - Therefore, if the linker is able to convert each R_SH_USES reloc - which refers to that address, it can safely eliminate the register - load. - - When the assembler creates an R_SH_USES reloc, it examines it to - determine which address is being loaded (L1 in the above example). - It then counts the number of references to that address, and - creates an R_SH_COUNT reloc at that address. The r_offset field of - the R_SH_COUNT reloc will be the number of references. If the - linker is able to eliminate a register load, it can use the - R_SH_COUNT reloc to see whether it can also eliminate the function - address. - - SH relaxing also handles another, unrelated, matter. On the SH, if - a load or store instruction is not aligned on a four byte boundary, - the memory cycle interferes with the 32 bit instruction fetch, - causing a one cycle bubble in the pipeline. Therefore, we try to - align load and store instructions on four byte boundaries if we - can, by swapping them with one of the adjacent instructions. */ - -static boolean -sh_relax_section (abfd, sec, link_info, again) - bfd *abfd; - asection *sec; - struct bfd_link_info *link_info; - boolean *again; -{ - struct internal_reloc *internal_relocs; - struct internal_reloc *free_relocs = NULL; - boolean have_code; - struct internal_reloc *irel, *irelend; - bfd_byte *contents = NULL; - bfd_byte *free_contents = NULL; - - *again = false; - - if (link_info->relocateable - || (sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0) - return true; - - /* If this is the first time we have been called for this section, - initialize the cooked size. */ - if (sec->_cooked_size == 0) - sec->_cooked_size = sec->_raw_size; - - internal_relocs = (_bfd_coff_read_internal_relocs - (abfd, sec, link_info->keep_memory, - (bfd_byte *) NULL, false, - (struct internal_reloc *) NULL)); - if (internal_relocs == NULL) - goto error_return; - if (! link_info->keep_memory) - free_relocs = internal_relocs; - - have_code = false; - - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma laddr, paddr, symval; - unsigned short insn; - struct internal_reloc *irelfn, *irelscan, *irelcount; - struct internal_syment sym; - bfd_signed_vma foff; - - if (irel->r_type == R_SH_CODE) - have_code = true; - - if (irel->r_type != R_SH_USES) - continue; - - /* Get the section contents. */ - if (contents == NULL) - { - if (coff_section_data (abfd, sec) != NULL - && coff_section_data (abfd, sec)->contents != NULL) - contents = coff_section_data (abfd, sec)->contents; - else - { - contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (contents == NULL) - goto error_return; - free_contents = contents; - - if (! bfd_get_section_contents (abfd, sec, contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - } - - /* The r_offset field of the R_SH_USES reloc will point us to - the register load. The 4 is because the r_offset field is - computed as though it were a jump offset, which are based - from 4 bytes after the jump instruction. */ - laddr = irel->r_vaddr - sec->vma + 4; - /* Careful to sign extend the 32-bit offset. */ - laddr += ((irel->r_offset & 0xffffffff) ^ 0x80000000) - 0x80000000; - if (laddr >= sec->_raw_size) - { - (*_bfd_error_handler) ("%s: 0x%lx: warning: bad R_SH_USES offset", - bfd_get_filename (abfd), - (unsigned long) irel->r_vaddr); - continue; - } - insn = bfd_get_16 (abfd, contents + laddr); - - /* If the instruction is not mov.l NN,rN, we don't know what to do. */ - if ((insn & 0xf000) != 0xd000) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x", - bfd_get_filename (abfd), (unsigned long) irel->r_vaddr, insn)); - continue; - } - - /* Get the address from which the register is being loaded. The - displacement in the mov.l instruction is quadrupled. It is a - displacement from four bytes after the movl instruction, but, - before adding in the PC address, two least significant bits - of the PC are cleared. We assume that the section is aligned - on a four byte boundary. */ - paddr = insn & 0xff; - paddr *= 4; - paddr += (laddr + 4) &~ 3; - if (paddr >= sec->_raw_size) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: bad R_SH_USES load offset", - bfd_get_filename (abfd), (unsigned long) irel->r_vaddr)); - continue; - } - - /* Get the reloc for the address from which the register is - being loaded. This reloc will tell us which function is - actually being called. */ - paddr += sec->vma; - for (irelfn = internal_relocs; irelfn < irelend; irelfn++) - if (irelfn->r_vaddr == paddr - && irelfn->r_type == R_SH_IMM32) - break; - if (irelfn >= irelend) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: could not find expected reloc", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* Get the value of the symbol referred to by the reloc. */ - if (! _bfd_coff_get_external_symbols (abfd)) - goto error_return; - bfd_coff_swap_sym_in (abfd, - ((bfd_byte *) obj_coff_external_syms (abfd) - + (irelfn->r_symndx - * bfd_coff_symesz (abfd))), - &sym); - if (sym.n_scnum != 0 && sym.n_scnum != sec->target_index) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: symbol in unexpected section", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - if (sym.n_sclass != C_EXT) - { - symval = (sym.n_value - - sec->vma - + sec->output_section->vma - + sec->output_offset); - } - else - { - struct coff_link_hash_entry *h; - - h = obj_coff_sym_hashes (abfd)[irelfn->r_symndx]; - BFD_ASSERT (h != NULL); - if (h->root.type != bfd_link_hash_defined - && h->root.type != bfd_link_hash_defweak) - { - /* This appears to be a reference to an undefined - symbol. Just ignore it--it will be caught by the - regular reloc processing. */ - continue; - } - - symval = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - } - - symval += bfd_get_32 (abfd, contents + paddr - sec->vma); - - /* See if this function call can be shortened. */ - foff = (symval - - (irel->r_vaddr - - sec->vma - + sec->output_section->vma - + sec->output_offset - + 4)); - if (foff < -0x1000 || foff >= 0x1000) - { - /* After all that work, we can't shorten this function call. */ - continue; - } - - /* Shorten the function call. */ - - /* For simplicity of coding, we are going to modify the section - contents, the section relocs, and the BFD symbol table. We - must tell the rest of the code not to free up this - information. It would be possible to instead create a table - of changes which have to be made, as is done in coff-mips.c; - that would be more work, but would require less memory when - the linker is run. */ - - if (coff_section_data (abfd, sec) == NULL) - { - sec->used_by_bfd = - ((PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata))); - if (sec->used_by_bfd == NULL) - goto error_return; - } - - coff_section_data (abfd, sec)->relocs = internal_relocs; - coff_section_data (abfd, sec)->keep_relocs = true; - free_relocs = NULL; - - coff_section_data (abfd, sec)->contents = contents; - coff_section_data (abfd, sec)->keep_contents = true; - free_contents = NULL; - - obj_coff_keep_syms (abfd) = true; - - /* Replace the jsr with a bsr. */ - - /* Change the R_SH_USES reloc into an R_SH_PCDISP reloc, and - replace the jsr with a bsr. */ - irel->r_type = R_SH_PCDISP; - irel->r_symndx = irelfn->r_symndx; - if (sym.n_sclass != C_EXT) - { - /* If this needs to be changed because of future relaxing, - it will be handled here like other internal PCDISP - relocs. */ - bfd_put_16 (abfd, - 0xb000 | ((foff >> 1) & 0xfff), - contents + irel->r_vaddr - sec->vma); - } - else - { - /* We can't fully resolve this yet, because the external - symbol value may be changed by future relaxing. We let - the final link phase handle it. */ - bfd_put_16 (abfd, 0xb000, contents + irel->r_vaddr - sec->vma); - } - - /* See if there is another R_SH_USES reloc referring to the same - register load. */ - for (irelscan = internal_relocs; irelscan < irelend; irelscan++) - if (irelscan->r_type == R_SH_USES - && laddr == irelscan->r_vaddr - sec->vma + 4 + irelscan->r_offset) - break; - if (irelscan < irelend) - { - /* Some other function call depends upon this register load, - and we have not yet converted that function call. - Indeed, we may never be able to convert it. There is - nothing else we can do at this point. */ - continue; - } - - /* Look for a R_SH_COUNT reloc on the location where the - function address is stored. Do this before deleting any - bytes, to avoid confusion about the address. */ - for (irelcount = internal_relocs; irelcount < irelend; irelcount++) - if (irelcount->r_vaddr == paddr - && irelcount->r_type == R_SH_COUNT) - break; - - /* Delete the register load. */ - if (! sh_relax_delete_bytes (abfd, sec, laddr, 2)) - goto error_return; - - /* That will change things, so, just in case it permits some - other function call to come within range, we should relax - again. Note that this is not required, and it may be slow. */ - *again = true; - - /* Now check whether we got a COUNT reloc. */ - if (irelcount >= irelend) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: could not find expected COUNT reloc", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* The number of uses is stored in the r_offset field. We've - just deleted one. */ - if (irelcount->r_offset == 0) - { - ((*_bfd_error_handler) ("%s: 0x%lx: warning: bad count", - bfd_get_filename (abfd), - (unsigned long) paddr)); - continue; - } - - --irelcount->r_offset; - - /* If there are no more uses, we can delete the address. Reload - the address from irelfn, in case it was changed by the - previous call to sh_relax_delete_bytes. */ - if (irelcount->r_offset == 0) - { - if (! sh_relax_delete_bytes (abfd, sec, - irelfn->r_vaddr - sec->vma, 4)) - goto error_return; - } - - /* We've done all we can with that function call. */ - } - - /* Look for load and store instructions that we can align on four - byte boundaries. */ - if (have_code) - { - boolean swapped; - - /* Get the section contents. */ - if (contents == NULL) - { - if (coff_section_data (abfd, sec) != NULL - && coff_section_data (abfd, sec)->contents != NULL) - contents = coff_section_data (abfd, sec)->contents; - else - { - contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (contents == NULL) - goto error_return; - free_contents = contents; - - if (! bfd_get_section_contents (abfd, sec, contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - } - - if (! sh_align_loads (abfd, sec, internal_relocs, contents, &swapped)) - goto error_return; - - if (swapped) - { - if (coff_section_data (abfd, sec) == NULL) - { - sec->used_by_bfd = - ((PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata))); - if (sec->used_by_bfd == NULL) - goto error_return; - } - - coff_section_data (abfd, sec)->relocs = internal_relocs; - coff_section_data (abfd, sec)->keep_relocs = true; - free_relocs = NULL; - - coff_section_data (abfd, sec)->contents = contents; - coff_section_data (abfd, sec)->keep_contents = true; - free_contents = NULL; - - obj_coff_keep_syms (abfd) = true; - } - } - - if (free_relocs != NULL) - { - free (free_relocs); - free_relocs = NULL; - } - - if (free_contents != NULL) - { - if (! link_info->keep_memory) - free (free_contents); - else - { - /* Cache the section contents for coff_link_input_bfd. */ - if (coff_section_data (abfd, sec) == NULL) - { - sec->used_by_bfd = - ((PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata))); - if (sec->used_by_bfd == NULL) - goto error_return; - coff_section_data (abfd, sec)->relocs = NULL; - } - coff_section_data (abfd, sec)->contents = contents; - } - } - - return true; - - error_return: - if (free_relocs != NULL) - free (free_relocs); - if (free_contents != NULL) - free (free_contents); - return false; -} - -/* Delete some bytes from a section while relaxing. */ - -static boolean -sh_relax_delete_bytes (abfd, sec, addr, count) - bfd *abfd; - asection *sec; - bfd_vma addr; - int count; -{ - bfd_byte *contents; - struct internal_reloc *irel, *irelend; - struct internal_reloc *irelalign; - bfd_vma toaddr; - bfd_byte *esym, *esymend; - bfd_size_type symesz; - struct coff_link_hash_entry **sym_hash; - asection *o; - - contents = coff_section_data (abfd, sec)->contents; - - /* The deletion must stop at the next ALIGN reloc for an aligment - power larger than the number of bytes we are deleting. */ - - irelalign = NULL; - toaddr = sec->_cooked_size; - - irel = coff_section_data (abfd, sec)->relocs; - irelend = irel + sec->reloc_count; - for (; irel < irelend; irel++) - { - if (irel->r_type == R_SH_ALIGN - && irel->r_vaddr - sec->vma > addr - && count < (1 << irel->r_offset)) - { - irelalign = irel; - toaddr = irel->r_vaddr - sec->vma; - break; - } - } - - /* Actually delete the bytes. */ - memmove (contents + addr, contents + addr + count, toaddr - addr - count); - if (irelalign == NULL) - sec->_cooked_size -= count; - else - { - int i; - -#define NOP_OPCODE (0x0009) - - BFD_ASSERT ((count & 1) == 0); - for (i = 0; i < count; i += 2) - bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i); - } - - /* Adjust all the relocs. */ - for (irel = coff_section_data (abfd, sec)->relocs; irel < irelend; irel++) - { - bfd_vma nraddr, stop; - bfd_vma start = 0; - int insn = 0; - struct internal_syment sym; - int off, adjust, oinsn; - bfd_signed_vma voff = 0; - boolean overflow; - - /* Get the new reloc address. */ - nraddr = irel->r_vaddr - sec->vma; - if ((irel->r_vaddr - sec->vma > addr - && irel->r_vaddr - sec->vma < toaddr) - || (irel->r_type == R_SH_ALIGN - && irel->r_vaddr - sec->vma == toaddr)) - nraddr -= count; - - /* See if this reloc was for the bytes we have deleted, in which - case we no longer care about it. Don't delete relocs which - represent addresses, though. */ - if (irel->r_vaddr - sec->vma >= addr - && irel->r_vaddr - sec->vma < addr + count - && irel->r_type != R_SH_ALIGN - && irel->r_type != R_SH_CODE - && irel->r_type != R_SH_DATA - && irel->r_type != R_SH_LABEL) - irel->r_type = R_SH_UNUSED; - - /* If this is a PC relative reloc, see if the range it covers - includes the bytes we have deleted. */ - switch (irel->r_type) - { - default: - break; - - case R_SH_PCDISP8BY2: - case R_SH_PCDISP: - case R_SH_PCRELIMM8BY2: - case R_SH_PCRELIMM8BY4: - start = irel->r_vaddr - sec->vma; - insn = bfd_get_16 (abfd, contents + nraddr); - break; - } - - switch (irel->r_type) - { - default: - start = stop = addr; - break; - - case R_SH_IMM32: - /* If this reloc is against a symbol defined in this - section, and the symbol will not be adjusted below, we - must check the addend to see it will put the value in - range to be adjusted, and hence must be changed. */ - bfd_coff_swap_sym_in (abfd, - ((bfd_byte *) obj_coff_external_syms (abfd) - + (irel->r_symndx - * bfd_coff_symesz (abfd))), - &sym); - if (sym.n_sclass != C_EXT - && sym.n_scnum == sec->target_index - && ((bfd_vma) sym.n_value <= addr - || (bfd_vma) sym.n_value >= toaddr)) - { - bfd_vma val; - - val = bfd_get_32 (abfd, contents + nraddr); - val += sym.n_value; - if (val >= addr && val < toaddr) - bfd_put_32 (abfd, val - count, contents + nraddr); - } - start = stop = addr; - break; - - case R_SH_PCDISP8BY2: - off = insn & 0xff; - if (off & 0x80) - off -= 0x100; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - break; - - case R_SH_PCDISP: - bfd_coff_swap_sym_in (abfd, - ((bfd_byte *) obj_coff_external_syms (abfd) - + (irel->r_symndx - * bfd_coff_symesz (abfd))), - &sym); - if (sym.n_sclass == C_EXT) - start = stop = addr; - else - { - off = insn & 0xfff; - if (off & 0x800) - off -= 0x1000; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - } - break; - - case R_SH_PCRELIMM8BY2: - off = insn & 0xff; - stop = start + 4 + off * 2; - break; - - case R_SH_PCRELIMM8BY4: - off = insn & 0xff; - stop = (start &~ (bfd_vma) 3) + 4 + off * 4; - break; - - case R_SH_SWITCH8: - case R_SH_SWITCH16: - case R_SH_SWITCH32: - /* These relocs types represent - .word L2-L1 - The r_offset field holds the difference between the reloc - address and L1. That is the start of the reloc, and - adding in the contents gives us the top. We must adjust - both the r_offset field and the section contents. */ - - start = irel->r_vaddr - sec->vma; - stop = (bfd_vma) ((bfd_signed_vma) start - (long) irel->r_offset); - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - irel->r_offset += count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - irel->r_offset -= count; - - start = stop; - - if (irel->r_type == R_SH_SWITCH16) - voff = bfd_get_signed_16 (abfd, contents + nraddr); - else if (irel->r_type == R_SH_SWITCH8) - voff = bfd_get_8 (abfd, contents + nraddr); - else - voff = bfd_get_signed_32 (abfd, contents + nraddr); - stop = (bfd_vma) ((bfd_signed_vma) start + voff); - - break; - - case R_SH_USES: - start = irel->r_vaddr - sec->vma; - stop = (bfd_vma) ((bfd_signed_vma) start - + (long) irel->r_offset - + 4); - break; - } - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - adjust = count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - adjust = - count; - else - adjust = 0; - - if (adjust != 0) - { - oinsn = insn; - overflow = false; - switch (irel->r_type) - { - default: - abort (); - break; - - case R_SH_PCDISP8BY2: - case R_SH_PCRELIMM8BY2: - insn += adjust / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_PCDISP: - insn += adjust / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_PCRELIMM8BY4: - BFD_ASSERT (adjust == count || count >= 4); - if (count >= 4) - insn += adjust / 4; - else - { - if ((irel->r_vaddr & 3) == 0) - ++insn; - } - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_SWITCH8: - voff += adjust; - if (voff < 0 || voff >= 0xff) - overflow = true; - bfd_put_8 (abfd, voff, contents + nraddr); - break; - - case R_SH_SWITCH16: - voff += adjust; - if (voff < - 0x8000 || voff >= 0x8000) - overflow = true; - bfd_put_signed_16 (abfd, voff, contents + nraddr); - break; - - case R_SH_SWITCH32: - voff += adjust; - bfd_put_signed_32 (abfd, voff, contents + nraddr); - break; - - case R_SH_USES: - irel->r_offset += adjust; - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: fatal: reloc overflow while relaxing", - bfd_get_filename (abfd), (unsigned long) irel->r_vaddr)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - - irel->r_vaddr = nraddr + sec->vma; - } - - /* Look through all the other sections. If there contain any IMM32 - relocs against internal symbols which we are not going to adjust - below, we may need to adjust the addends. */ - for (o = abfd->sections; o != NULL; o = o->next) - { - struct internal_reloc *internal_relocs; - struct internal_reloc *irelscan, *irelscanend; - bfd_byte *ocontents; - - if (o == sec - || (o->flags & SEC_RELOC) == 0 - || o->reloc_count == 0) - continue; - - /* We always cache the relocs. Perhaps, if info->keep_memory is - false, we should free them, if we are permitted to, when we - leave sh_coff_relax_section. */ - internal_relocs = (_bfd_coff_read_internal_relocs - (abfd, o, true, (bfd_byte *) NULL, false, - (struct internal_reloc *) NULL)); - if (internal_relocs == NULL) - return false; - - ocontents = NULL; - irelscanend = internal_relocs + o->reloc_count; - for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) - { - struct internal_syment sym; - - if (irelscan->r_type != R_SH_IMM32) - continue; - - bfd_coff_swap_sym_in (abfd, - ((bfd_byte *) obj_coff_external_syms (abfd) - + (irelscan->r_symndx - * bfd_coff_symesz (abfd))), - &sym); - if (sym.n_sclass != C_EXT - && sym.n_scnum == sec->target_index - && ((bfd_vma) sym.n_value <= addr - || (bfd_vma) sym.n_value >= toaddr)) - { - bfd_vma val; - - if (ocontents == NULL) - { - if (coff_section_data (abfd, o)->contents != NULL) - ocontents = coff_section_data (abfd, o)->contents; - else - { - /* We always cache the section contents. - Perhaps, if info->keep_memory is false, we - should free them, if we are permitted to, - when we leave sh_coff_relax_section. */ - ocontents = (bfd_byte *) bfd_malloc (o->_raw_size); - if (ocontents == NULL) - return false; - if (! bfd_get_section_contents (abfd, o, ocontents, - (file_ptr) 0, - o->_raw_size)) - return false; - coff_section_data (abfd, o)->contents = ocontents; - } - } - - val = bfd_get_32 (abfd, ocontents + irelscan->r_vaddr - o->vma); - val += sym.n_value; - if (val >= addr && val < toaddr) - bfd_put_32 (abfd, val - count, - ocontents + irelscan->r_vaddr - o->vma); - - coff_section_data (abfd, o)->keep_contents = true; - } - } - } - - /* Adjusting the internal symbols will not work if something has - already retrieved the generic symbols. It would be possible to - make this work by adjusting the generic symbols at the same time. - However, this case should not arise in normal usage. */ - if (obj_symbols (abfd) != NULL - || obj_raw_syments (abfd) != NULL) - { - ((*_bfd_error_handler) - ("%s: fatal: generic symbols retrieved before relaxing", - bfd_get_filename (abfd))); - bfd_set_error (bfd_error_invalid_operation); - return false; - } - - /* Adjust all the symbols. */ - sym_hash = obj_coff_sym_hashes (abfd); - symesz = bfd_coff_symesz (abfd); - esym = (bfd_byte *) obj_coff_external_syms (abfd); - esymend = esym + obj_raw_syment_count (abfd) * symesz; - while (esym < esymend) - { - struct internal_syment isym; - - bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &isym); - - if (isym.n_scnum == sec->target_index - && (bfd_vma) isym.n_value > addr - && (bfd_vma) isym.n_value < toaddr) - { - isym.n_value -= count; - - bfd_coff_swap_sym_out (abfd, (PTR) &isym, (PTR) esym); - - if (*sym_hash != NULL) - { - BFD_ASSERT ((*sym_hash)->root.type == bfd_link_hash_defined - || (*sym_hash)->root.type == bfd_link_hash_defweak); - BFD_ASSERT ((*sym_hash)->root.u.def.value >= addr - && (*sym_hash)->root.u.def.value < toaddr); - (*sym_hash)->root.u.def.value -= count; - } - } - - esym += (isym.n_numaux + 1) * symesz; - sym_hash += isym.n_numaux + 1; - } - - /* See if we can move the ALIGN reloc forward. We have adjusted - r_vaddr for it already. */ - if (irelalign != NULL) - { - bfd_vma alignto, alignaddr; - - alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_offset); - alignaddr = BFD_ALIGN (irelalign->r_vaddr - sec->vma, - 1 << irelalign->r_offset); - if (alignto != alignaddr) - { - /* Tail recursion. */ - return sh_relax_delete_bytes (abfd, sec, alignaddr, - alignto - alignaddr); - } - } - - return true; -} - -/* This is yet another version of the SH opcode table, used to rapidly - get information about a particular instruction. */ - -/* The opcode map is represented by an array of these structures. The - array is indexed by the high order four bits in the instruction. */ - -struct sh_major_opcode -{ - /* A pointer to the instruction list. This is an array which - contains all the instructions with this major opcode. */ - const struct sh_minor_opcode *minor_opcodes; - /* The number of elements in minor_opcodes. */ - unsigned short count; -}; - -/* This structure holds information for a set of SH opcodes. The - instruction code is anded with the mask value, and the resulting - value is used to search the order opcode list. */ - -struct sh_minor_opcode -{ - /* The sorted opcode list. */ - const struct sh_opcode *opcodes; - /* The number of elements in opcodes. */ - unsigned short count; - /* The mask value to use when searching the opcode list. */ - unsigned short mask; -}; - -/* This structure holds information for an SH instruction. An array - of these structures is sorted in order by opcode. */ - -struct sh_opcode -{ - /* The code for this instruction, after it has been anded with the - mask value in the sh_major_opcode structure. */ - unsigned short opcode; - /* Flags for this instruction. */ - unsigned short flags; -}; - -/* Flag which appear in the sh_opcode structure. */ - -/* This instruction loads a value from memory. */ -#define LOAD (0x1) - -/* This instruction stores a value to memory. */ -#define STORE (0x2) - -/* This instruction is a branch. */ -#define BRANCH (0x4) - -/* This instruction has a delay slot. */ -#define DELAY (0x8) - -/* This instruction uses the value in the register in the field at - mask 0x0f00 of the instruction. */ -#define USES1 (0x10) - -/* This instruction uses the value in the register in the field at - mask 0x00f0 of the instruction. */ -#define USES2 (0x20) - -/* This instruction uses the value in register 0. */ -#define USESR0 (0x40) - -/* This instruction sets the value in the register in the field at - mask 0x0f00 of the instruction. */ -#define SETS1 (0x80) - -/* This instruction sets the value in the register in the field at - mask 0x00f0 of the instruction. */ -#define SETS2 (0x100) - -/* This instruction sets register 0. */ -#define SETSR0 (0x200) - -/* This instruction sets a special register. */ -#define SETSSP (0x400) - -/* This instruction uses a special register. */ -#define USESSP (0x800) - -/* This instruction uses the floating point register in the field at - mask 0x0f00 of the instruction. */ -#define USESF1 (0x1000) - -/* This instruction uses the floating point register in the field at - mask 0x00f0 of the instruction. */ -#define USESF2 (0x2000) - -/* This instruction uses floating point register 0. */ -#define USESF0 (0x4000) - -/* This instruction sets the floating point register in the field at - mask 0x0f00 of the instruction. */ -#define SETSF1 (0x8000) - -static boolean sh_insn_uses_reg - PARAMS ((unsigned int, const struct sh_opcode *, unsigned int)); -static boolean sh_insn_uses_freg - PARAMS ((unsigned int, const struct sh_opcode *, unsigned int)); -static boolean sh_insns_conflict - PARAMS ((unsigned int, const struct sh_opcode *, unsigned int, - const struct sh_opcode *)); -static boolean sh_load_use - PARAMS ((unsigned int, const struct sh_opcode *, unsigned int, - const struct sh_opcode *)); - -/* The opcode maps. */ - -#define MAP(a) a, sizeof a / sizeof a[0] - -static const struct sh_opcode sh_opcode00[] = -{ - { 0x0008, SETSSP }, /* clrt */ - { 0x0009, 0 }, /* nop */ - { 0x000b, BRANCH | DELAY | USESSP }, /* rts */ - { 0x0018, SETSSP }, /* sett */ - { 0x0019, SETSSP }, /* div0u */ - { 0x001b, 0 }, /* sleep */ - { 0x0028, SETSSP }, /* clrmac */ - { 0x002b, BRANCH | DELAY | SETSSP }, /* rte */ - { 0x0038, USESSP | SETSSP }, /* ldtlb */ - { 0x0048, SETSSP }, /* clrs */ - { 0x0058, SETSSP } /* sets */ -}; - -static const struct sh_opcode sh_opcode01[] = -{ - { 0x0002, SETS1 | USESSP }, /* stc sr,rn */ - { 0x0003, BRANCH | DELAY | USES1 | SETSSP }, /* bsrf rn */ - { 0x000a, SETS1 | USESSP }, /* sts mach,rn */ - { 0x0012, SETS1 | USESSP }, /* stc gbr,rn */ - { 0x001a, SETS1 | USESSP }, /* sts macl,rn */ - { 0x0022, SETS1 | USESSP }, /* stc vbr,rn */ - { 0x0023, BRANCH | DELAY | USES1 }, /* braf rn */ - { 0x0029, SETS1 | USESSP }, /* movt rn */ - { 0x002a, SETS1 | USESSP }, /* sts pr,rn */ - { 0x0032, SETS1 | USESSP }, /* stc ssr,rn */ - { 0x0042, SETS1 | USESSP }, /* stc spc,rn */ - { 0x005a, SETS1 | USESSP }, /* sts fpul,rn */ - { 0x006a, SETS1 | USESSP }, /* sts fpscr,rn */ - { 0x0082, SETS1 | USESSP }, /* stc r0_bank,rn */ - { 0x0083, LOAD | USES1 }, /* pref @rn */ - { 0x0092, SETS1 | USESSP }, /* stc r1_bank,rn */ - { 0x00a2, SETS1 | USESSP }, /* stc r2_bank,rn */ - { 0x00b2, SETS1 | USESSP }, /* stc r3_bank,rn */ - { 0x00c2, SETS1 | USESSP }, /* stc r4_bank,rn */ - { 0x00d2, SETS1 | USESSP }, /* stc r5_bank,rn */ - { 0x00e2, SETS1 | USESSP }, /* stc r6_bank,rn */ - { 0x00f2, SETS1 | USESSP } /* stc r7_bank,rn */ -}; - -static const struct sh_opcode sh_opcode02[] = -{ - { 0x0004, STORE | USES1 | USES2 | USESR0 }, /* mov.b rm,@(r0,rn) */ - { 0x0005, STORE | USES1 | USES2 | USESR0 }, /* mov.w rm,@(r0,rn) */ - { 0x0006, STORE | USES1 | USES2 | USESR0 }, /* mov.l rm,@(r0,rn) */ - { 0x0007, SETSSP | USES1 | USES2 }, /* mul.l rm,rn */ - { 0x000c, LOAD | SETS1 | USES2 | USESR0 }, /* mov.b @(r0,rm),rn */ - { 0x000d, LOAD | SETS1 | USES2 | USESR0 }, /* mov.w @(r0,rm),rn */ - { 0x000e, LOAD | SETS1 | USES2 | USESR0 }, /* mov.l @(r0,rm),rn */ - { 0x000f, LOAD|SETS1|SETS2|SETSSP|USES1|USES2|USESSP }, /* mac.l @rm+,@rn+ */ -}; - -static const struct sh_minor_opcode sh_opcode0[] = -{ - { MAP (sh_opcode00), 0xffff }, - { MAP (sh_opcode01), 0xf0ff }, - { MAP (sh_opcode02), 0xf00f } -}; - -static const struct sh_opcode sh_opcode10[] = -{ - { 0x1000, STORE | USES1 | USES2 } /* mov.l rm,@(disp,rn) */ -}; - -static const struct sh_minor_opcode sh_opcode1[] = -{ - { MAP (sh_opcode10), 0xf000 } -}; - -static const struct sh_opcode sh_opcode20[] = -{ - { 0x2000, STORE | USES1 | USES2 }, /* mov.b rm,@rn */ - { 0x2001, STORE | USES1 | USES2 }, /* mov.w rm,@rn */ - { 0x2002, STORE | USES1 | USES2 }, /* mov.l rm,@rn */ - { 0x2004, STORE | SETS1 | USES1 | USES2 }, /* mov.b rm,@-rn */ - { 0x2005, STORE | SETS1 | USES1 | USES2 }, /* mov.w rm,@-rn */ - { 0x2006, STORE | SETS1 | USES1 | USES2 }, /* mov.l rm,@-rn */ - { 0x2007, SETSSP | USES1 | USES2 | USESSP }, /* div0s */ - { 0x2008, SETSSP | USES1 | USES2 }, /* tst rm,rn */ - { 0x2009, SETS1 | USES1 | USES2 }, /* and rm,rn */ - { 0x200a, SETS1 | USES1 | USES2 }, /* xor rm,rn */ - { 0x200b, SETS1 | USES1 | USES2 }, /* or rm,rn */ - { 0x200c, SETSSP | USES1 | USES2 }, /* cmp/str rm,rn */ - { 0x200d, SETS1 | USES1 | USES2 }, /* xtrct rm,rn */ - { 0x200e, SETSSP | USES1 | USES2 }, /* mulu.w rm,rn */ - { 0x200f, SETSSP | USES1 | USES2 } /* muls.w rm,rn */ -}; - -static const struct sh_minor_opcode sh_opcode2[] = -{ - { MAP (sh_opcode20), 0xf00f } -}; - -static const struct sh_opcode sh_opcode30[] = -{ - { 0x3000, SETSSP | USES1 | USES2 }, /* cmp/eq rm,rn */ - { 0x3002, SETSSP | USES1 | USES2 }, /* cmp/hs rm,rn */ - { 0x3003, SETSSP | USES1 | USES2 }, /* cmp/ge rm,rn */ - { 0x3004, SETSSP | USESSP | USES1 | USES2 }, /* div1 rm,rn */ - { 0x3005, SETSSP | USES1 | USES2 }, /* dmulu.l rm,rn */ - { 0x3006, SETSSP | USES1 | USES2 }, /* cmp/hi rm,rn */ - { 0x3007, SETSSP | USES1 | USES2 }, /* cmp/gt rm,rn */ - { 0x3008, SETS1 | USES1 | USES2 }, /* sub rm,rn */ - { 0x300a, SETS1 | SETSSP | USES1 | USES2 | USESSP }, /* subc rm,rn */ - { 0x300b, SETS1 | SETSSP | USES1 | USES2 }, /* subv rm,rn */ - { 0x300c, SETS1 | USES1 | USES2 }, /* add rm,rn */ - { 0x300d, SETSSP | USES1 | USES2 }, /* dmuls.l rm,rn */ - { 0x300e, SETS1 | SETSSP | USES1 | USES2 | USESSP }, /* addc rm,rn */ - { 0x300f, SETS1 | SETSSP | USES1 | USES2 } /* addv rm,rn */ -}; - -static const struct sh_minor_opcode sh_opcode3[] = -{ - { MAP (sh_opcode30), 0xf00f } -}; - -static const struct sh_opcode sh_opcode40[] = -{ - { 0x4000, SETS1 | SETSSP | USES1 }, /* shll rn */ - { 0x4001, SETS1 | SETSSP | USES1 }, /* shlr rn */ - { 0x4002, STORE | SETS1 | USES1 | USESSP }, /* sts.l mach,@-rn */ - { 0x4003, STORE | SETS1 | USES1 | USESSP }, /* stc.l sr,@-rn */ - { 0x4004, SETS1 | SETSSP | USES1 }, /* rotl rn */ - { 0x4005, SETS1 | SETSSP | USES1 }, /* rotr rn */ - { 0x4006, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,mach */ - { 0x4007, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,sr */ - { 0x4008, SETS1 | USES1 }, /* shll2 rn */ - { 0x4009, SETS1 | USES1 }, /* shlr2 rn */ - { 0x400a, SETSSP | USES1 }, /* lds rm,mach */ - { 0x400b, BRANCH | DELAY | USES1 }, /* jsr @rn */ - { 0x400e, SETSSP | USES1 }, /* ldc rm,sr */ - { 0x4010, SETS1 | SETSSP | USES1 }, /* dt rn */ - { 0x4011, SETSSP | USES1 }, /* cmp/pz rn */ - { 0x4012, STORE | SETS1 | USES1 | USESSP }, /* sts.l macl,@-rn */ - { 0x4013, STORE | SETS1 | USES1 | USESSP }, /* stc.l gbr,@-rn */ - { 0x4015, SETSSP | USES1 }, /* cmp/pl rn */ - { 0x4016, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,macl */ - { 0x4017, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,gbr */ - { 0x4018, SETS1 | USES1 }, /* shll8 rn */ - { 0x4019, SETS1 | USES1 }, /* shlr8 rn */ - { 0x401a, SETSSP | USES1 }, /* lds rm,macl */ - { 0x401b, LOAD | SETSSP | USES1 }, /* tas.b @rn */ - { 0x401e, SETSSP | USES1 }, /* ldc rm,gbr */ - { 0x4020, SETS1 | SETSSP | USES1 }, /* shal rn */ - { 0x4021, SETS1 | SETSSP | USES1 }, /* shar rn */ - { 0x4022, STORE | SETS1 | USES1 | USESSP }, /* sts.l pr,@-rn */ - { 0x4023, STORE | SETS1 | USES1 | USESSP }, /* stc.l vbr,@-rn */ - { 0x4024, SETS1 | SETSSP | USES1 | USESSP }, /* rotcl rn */ - { 0x4025, SETS1 | SETSSP | USES1 | USESSP }, /* rotcr rn */ - { 0x4026, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,pr */ - { 0x4027, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,vbr */ - { 0x4028, SETS1 | USES1 }, /* shll16 rn */ - { 0x4029, SETS1 | USES1 }, /* shlr16 rn */ - { 0x402a, SETSSP | USES1 }, /* lds rm,pr */ - { 0x402b, BRANCH | DELAY | USES1 }, /* jmp @rn */ - { 0x402e, SETSSP | USES1 }, /* ldc rm,vbr */ - { 0x4033, STORE | SETS1 | USES1 | USESSP }, /* stc.l ssr,@-rn */ - { 0x4037, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,ssr */ - { 0x403e, SETSSP | USES1 }, /* ldc rm,ssr */ - { 0x4043, STORE | SETS1 | USES1 | USESSP }, /* stc.l spc,@-rn */ - { 0x4047, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,spc */ - { 0x404e, SETSSP | USES1 }, /* ldc rm,spc */ - { 0x4052, STORE | SETS1 | USES1 | USESSP }, /* sts.l fpul,@-rn */ - { 0x4056, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,fpul */ - { 0x405a, SETSSP | USES1 }, /* lds.l rm,fpul */ - { 0x4062, STORE | SETS1 | USES1 | USESSP }, /* sts.l fpscr,@-rn */ - { 0x4066, LOAD | SETS1 | SETSSP | USES1 }, /* lds.l @rm+,fpscr */ - { 0x406a, SETSSP | USES1 } /* lds rm,fpscr */ -}; - -static const struct sh_opcode sh_opcode41[] = -{ - { 0x4083, STORE | SETS1 | USES1 | USESSP }, /* stc.l rx_bank,@-rn */ - { 0x4087, LOAD | SETS1 | SETSSP | USES1 }, /* ldc.l @rm+,rx_bank */ - { 0x408e, SETSSP | USES1 } /* ldc rm,rx_bank */ -}; - -static const struct sh_opcode sh_opcode42[] = -{ - { 0x400c, SETS1 | USES1 | USES2 }, /* shad rm,rn */ - { 0x400d, SETS1 | USES1 | USES2 }, /* shld rm,rn */ - { 0x400f, LOAD|SETS1|SETS2|SETSSP|USES1|USES2|USESSP }, /* mac.w @rm+,@rn+ */ -}; - -static const struct sh_minor_opcode sh_opcode4[] = -{ - { MAP (sh_opcode40), 0xf0ff }, - { MAP (sh_opcode41), 0xf08f }, - { MAP (sh_opcode42), 0xf00f } -}; - -static const struct sh_opcode sh_opcode50[] = -{ - { 0x5000, LOAD | SETS1 | USES2 } /* mov.l @(disp,rm),rn */ -}; - -static const struct sh_minor_opcode sh_opcode5[] = -{ - { MAP (sh_opcode50), 0xf000 } -}; - -static const struct sh_opcode sh_opcode60[] = -{ - { 0x6000, LOAD | SETS1 | USES2 }, /* mov.b @rm,rn */ - { 0x6001, LOAD | SETS1 | USES2 }, /* mov.w @rm,rn */ - { 0x6002, LOAD | SETS1 | USES2 }, /* mov.l @rm,rn */ - { 0x6003, SETS1 | USES2 }, /* mov rm,rn */ - { 0x6004, LOAD | SETS1 | SETS2 | USES2 }, /* mov.b @rm+,rn */ - { 0x6005, LOAD | SETS1 | SETS2 | USES2 }, /* mov.w @rm+,rn */ - { 0x6006, LOAD | SETS1 | SETS2 | USES2 }, /* mov.l @rm+,rn */ - { 0x6007, SETS1 | USES2 }, /* not rm,rn */ - { 0x6008, SETS1 | USES2 }, /* swap.b rm,rn */ - { 0x6009, SETS1 | USES2 }, /* swap.w rm,rn */ - { 0x600a, SETS1 | SETSSP | USES2 | USESSP }, /* negc rm,rn */ - { 0x600b, SETS1 | USES2 }, /* neg rm,rn */ - { 0x600c, SETS1 | USES2 }, /* extu.b rm,rn */ - { 0x600d, SETS1 | USES2 }, /* extu.w rm,rn */ - { 0x600e, SETS1 | USES2 }, /* exts.b rm,rn */ - { 0x600f, SETS1 | USES2 } /* exts.w rm,rn */ -}; - -static const struct sh_minor_opcode sh_opcode6[] = -{ - { MAP (sh_opcode60), 0xf00f } -}; - -static const struct sh_opcode sh_opcode70[] = -{ - { 0x7000, SETS1 | USES1 } /* add #imm,rn */ -}; - -static const struct sh_minor_opcode sh_opcode7[] = -{ - { MAP (sh_opcode70), 0xf000 } -}; - -static const struct sh_opcode sh_opcode80[] = -{ - { 0x8000, STORE | USES2 | USESR0 }, /* mov.b r0,@(disp,rn) */ - { 0x8100, STORE | USES2 | USESR0 }, /* mov.w r0,@(disp,rn) */ - { 0x8400, LOAD | SETSR0 | USES2 }, /* mov.b @(disp,rm),r0 */ - { 0x8500, LOAD | SETSR0 | USES2 }, /* mov.w @(disp,rn),r0 */ - { 0x8800, SETSSP | USESR0 }, /* cmp/eq #imm,r0 */ - { 0x8900, BRANCH | USESSP }, /* bt label */ - { 0x8b00, BRANCH | USESSP }, /* bf label */ - { 0x8d00, BRANCH | DELAY | USESSP }, /* bt/s label */ - { 0x8f00, BRANCH | DELAY | USESSP } /* bf/s label */ -}; - -static const struct sh_minor_opcode sh_opcode8[] = -{ - { MAP (sh_opcode80), 0xff00 } -}; - -static const struct sh_opcode sh_opcode90[] = -{ - { 0x9000, LOAD | SETS1 } /* mov.w @(disp,pc),rn */ -}; - -static const struct sh_minor_opcode sh_opcode9[] = -{ - { MAP (sh_opcode90), 0xf000 } -}; - -static const struct sh_opcode sh_opcodea0[] = -{ - { 0xa000, BRANCH | DELAY } /* bra label */ -}; - -static const struct sh_minor_opcode sh_opcodea[] = -{ - { MAP (sh_opcodea0), 0xf000 } -}; - -static const struct sh_opcode sh_opcodeb0[] = -{ - { 0xb000, BRANCH | DELAY } /* bsr label */ -}; - -static const struct sh_minor_opcode sh_opcodeb[] = -{ - { MAP (sh_opcodeb0), 0xf000 } -}; - -static const struct sh_opcode sh_opcodec0[] = -{ - { 0xc000, STORE | USESR0 | USESSP }, /* mov.b r0,@(disp,gbr) */ - { 0xc100, STORE | USESR0 | USESSP }, /* mov.w r0,@(disp,gbr) */ - { 0xc200, STORE | USESR0 | USESSP }, /* mov.l r0,@(disp,gbr) */ - { 0xc300, BRANCH | USESSP }, /* trapa #imm */ - { 0xc400, LOAD | SETSR0 | USESSP }, /* mov.b @(disp,gbr),r0 */ - { 0xc500, LOAD | SETSR0 | USESSP }, /* mov.w @(disp,gbr),r0 */ - { 0xc600, LOAD | SETSR0 | USESSP }, /* mov.l @(disp,gbr),r0 */ - { 0xc700, SETSR0 }, /* mova @(disp,pc),r0 */ - { 0xc800, SETSSP | USESR0 }, /* tst #imm,r0 */ - { 0xc900, SETSR0 | USESR0 }, /* and #imm,r0 */ - { 0xca00, SETSR0 | USESR0 }, /* xor #imm,r0 */ - { 0xcb00, SETSR0 | USESR0 }, /* or #imm,r0 */ - { 0xcc00, LOAD | SETSSP | USESR0 | USESSP }, /* tst.b #imm,@(r0,gbr) */ - { 0xcd00, LOAD | STORE | USESR0 | USESSP }, /* and.b #imm,@(r0,gbr) */ - { 0xce00, LOAD | STORE | USESR0 | USESSP }, /* xor.b #imm,@(r0,gbr) */ - { 0xcf00, LOAD | STORE | USESR0 | USESSP } /* or.b #imm,@(r0,gbr) */ -}; - -static const struct sh_minor_opcode sh_opcodec[] = -{ - { MAP (sh_opcodec0), 0xff00 } -}; - -static const struct sh_opcode sh_opcoded0[] = -{ - { 0xd000, LOAD | SETS1 } /* mov.l @(disp,pc),rn */ -}; - -static const struct sh_minor_opcode sh_opcoded[] = -{ - { MAP (sh_opcoded0), 0xf000 } -}; - -static const struct sh_opcode sh_opcodee0[] = -{ - { 0xe000, SETS1 } /* mov #imm,rn */ -}; - -static const struct sh_minor_opcode sh_opcodee[] = -{ - { MAP (sh_opcodee0), 0xf000 } -}; - -static const struct sh_opcode sh_opcodef0[] = -{ - { 0xf000, SETSF1 | USESF1 | USESF2 }, /* fadd fm,fn */ - { 0xf001, SETSF1 | USESF1 | USESF2 }, /* fsub fm,fn */ - { 0xf002, SETSF1 | USESF1 | USESF2 }, /* fmul fm,fn */ - { 0xf003, SETSF1 | USESF1 | USESF2 }, /* fdiv fm,fn */ - { 0xf004, SETSSP | USESF1 | USESF2 }, /* fcmp/eq fm,fn */ - { 0xf005, SETSSP | USESF1 | USESF2 }, /* fcmp/gt fm,fn */ - { 0xf006, LOAD | SETSF1 | USES2 | USESR0 }, /* fmov.s @(r0,rm),fn */ - { 0xf007, STORE | USES1 | USESF2 | USESR0 }, /* fmov.s fm,@(r0,rn) */ - { 0xf008, LOAD | SETSF1 | USES2 }, /* fmov.s @rm,fn */ - { 0xf009, LOAD | SETS2 | SETSF1 | USES2 }, /* fmov.s @rm+,fn */ - { 0xf00a, STORE | USES1 | USESF2 }, /* fmov.s fm,@rn */ - { 0xf00b, STORE | SETS1 | USES1 | USESF2 }, /* fmov.s fm,@-rn */ - { 0xf00c, SETSF1 | USESF2 }, /* fmov fm,fn */ - { 0xf00e, SETSF1 | USESF1 | USESF2 | USESF0 } /* fmac f0,fm,fn */ -}; - -static const struct sh_opcode sh_opcodef1[] = -{ - { 0xf00d, SETSF1 | USESSP }, /* fsts fpul,fn */ - { 0xf01d, SETSSP | USESF1 }, /* flds fn,fpul */ - { 0xf02d, SETSF1 | USESSP }, /* float fpul,fn */ - { 0xf03d, SETSSP | USESF1 }, /* ftrc fn,fpul */ - { 0xf04d, SETSF1 | USESF1 }, /* fneg fn */ - { 0xf05d, SETSF1 | USESF1 }, /* fabs fn */ - { 0xf06d, SETSF1 | USESF1 }, /* fsqrt fn */ - { 0xf07d, SETSSP | USESF1 }, /* ftst/nan fn */ - { 0xf08d, SETSF1 }, /* fldi0 fn */ - { 0xf09d, SETSF1 } /* fldi1 fn */ -}; - -static const struct sh_minor_opcode sh_opcodef[] = -{ - { MAP (sh_opcodef0), 0xf00f }, - { MAP (sh_opcodef1), 0xf0ff } -}; - -static const struct sh_major_opcode sh_opcodes[] = -{ - { MAP (sh_opcode0) }, - { MAP (sh_opcode1) }, - { MAP (sh_opcode2) }, - { MAP (sh_opcode3) }, - { MAP (sh_opcode4) }, - { MAP (sh_opcode5) }, - { MAP (sh_opcode6) }, - { MAP (sh_opcode7) }, - { MAP (sh_opcode8) }, - { MAP (sh_opcode9) }, - { MAP (sh_opcodea) }, - { MAP (sh_opcodeb) }, - { MAP (sh_opcodec) }, - { MAP (sh_opcoded) }, - { MAP (sh_opcodee) }, - { MAP (sh_opcodef) } -}; - -/* Given an instruction, return a pointer to the corresponding - sh_opcode structure. Return NULL if the instruction is not - recognized. */ - -static const struct sh_opcode * -sh_insn_info (insn) - unsigned int insn; -{ - const struct sh_major_opcode *maj; - const struct sh_minor_opcode *min, *minend; - - maj = &sh_opcodes[(insn & 0xf000) >> 12]; - min = maj->minor_opcodes; - minend = min + maj->count; - for (; min < minend; min++) - { - unsigned int l; - const struct sh_opcode *op, *opend; - - l = insn & min->mask; - op = min->opcodes; - opend = op + min->count; - - /* Since the opcodes tables are sorted, we could use a binary - search here if the count were above some cutoff value. */ - for (; op < opend; op++) - if (op->opcode == l) - return op; - } - - return NULL; -} - -/* See whether an instruction uses a general purpose register. */ - -static boolean -sh_insn_uses_reg (insn, op, reg) - unsigned int insn; - const struct sh_opcode *op; - unsigned int reg; -{ - unsigned int f; - - f = op->flags; - - if ((f & USES1) != 0 - && ((insn & 0x0f00) >> 8) == reg) - return true; - if ((f & USES2) != 0 - && ((insn & 0x00f0) >> 4) == reg) - return true; - if ((f & USESR0) != 0 - && reg == 0) - return true; - - return false; -} - -/* See whether an instruction uses a floating point register. */ - -static boolean -sh_insn_uses_freg (insn, op, freg) - unsigned int insn; - const struct sh_opcode *op; - unsigned int freg; -{ - unsigned int f; - - f = op->flags; - - if ((f & USESF1) != 0 - && ((insn & 0x0f00) >> 8) == freg) - return true; - if ((f & USESF2) != 0 - && ((insn & 0x00f0) >> 4) == freg) - return true; - if ((f & USESF0) != 0 - && freg == 0) - return true; - - return false; -} - -/* See whether instructions I1 and I2 conflict, assuming I1 comes - before I2. OP1 and OP2 are the corresponding sh_opcode structures. - This should return true if there is a conflict, or false if the - instructions can be swapped safely. */ - -static boolean -sh_insns_conflict (i1, op1, i2, op2) - unsigned int i1; - const struct sh_opcode *op1; - unsigned int i2; - const struct sh_opcode *op2; -{ - unsigned int f1, f2; - - f1 = op1->flags; - f2 = op2->flags; - - if ((f1 & (BRANCH | DELAY)) != 0 - || (f2 & (BRANCH | DELAY)) != 0) - return true; - - if ((f1 & SETSSP) != 0 && (f2 & USESSP) != 0) - return true; - if ((f2 & SETSSP) != 0 && (f1 & USESSP) != 0) - return true; - - if ((f1 & SETS1) != 0 - && sh_insn_uses_reg (i2, op2, (i1 & 0x0f00) >> 8)) - return true; - if ((f1 & SETS2) != 0 - && sh_insn_uses_reg (i2, op2, (i1 & 0x00f0) >> 4)) - return true; - if ((f1 & SETSR0) != 0 - && sh_insn_uses_reg (i2, op2, 0)) - return true; - if ((f1 & SETSF1) != 0 - && sh_insn_uses_freg (i2, op2, (i1 & 0x0f00) >> 8)) - return true; - - if ((f2 & SETS1) != 0 - && sh_insn_uses_reg (i1, op1, (i2 & 0x0f00) >> 8)) - return true; - if ((f2 & SETS2) != 0 - && sh_insn_uses_reg (i1, op1, (i2 & 0x00f0) >> 4)) - return true; - if ((f2 & SETSR0) != 0 - && sh_insn_uses_reg (i1, op1, 0)) - return true; - if ((f2 & SETSF1) != 0 - && sh_insn_uses_freg (i1, op1, (i2 & 0x0f00) >> 8)) - return true; - - /* The instructions do not conflict. */ - return false; -} - -/* I1 is a load instruction, and I2 is some other instruction. Return - true if I1 loads a register which I2 uses. */ - -static boolean -sh_load_use (i1, op1, i2, op2) - unsigned int i1; - const struct sh_opcode *op1; - unsigned int i2; - const struct sh_opcode *op2; -{ - unsigned int f1; - - f1 = op1->flags; - - if ((f1 & LOAD) == 0) - return false; - - /* If both SETS1 and SETSSP are set, that means a load to a special - register using postincrement addressing mode, which we don't care - about here. */ - if ((f1 & SETS1) != 0 - && (f1 & SETSSP) == 0 - && sh_insn_uses_reg (i2, op2, (i1 & 0x0f00) >> 8)) - return true; - - if ((f1 & SETSR0) != 0 - && sh_insn_uses_reg (i2, op2, 0)) - return true; - - if ((f1 & SETSF1) != 0 - && sh_insn_uses_freg (i2, op2, (i1 & 0x0f00) >> 8)) - return true; - - return false; -} - -/* Try to align loads and stores within a span of memory. This is - called by both the ELF and the COFF sh targets. ABFD and SEC are - the BFD and section we are examining. CONTENTS is the contents of - the section. SWAP is the routine to call to swap two instructions. - RELOCS is a pointer to the internal relocation information, to be - passed to SWAP. PLABEL is a pointer to the current label in a - sorted list of labels; LABEL_END is the end of the list. START and - STOP are the range of memory to examine. If a swap is made, - *PSWAPPED is set to true. */ - -boolean -_bfd_sh_align_load_span (abfd, sec, contents, swap, relocs, - plabel, label_end, start, stop, pswapped) - bfd *abfd; - asection *sec; - bfd_byte *contents; - boolean (*swap) PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma)); - PTR relocs; - bfd_vma **plabel; - bfd_vma *label_end; - bfd_vma start; - bfd_vma stop; - boolean *pswapped; -{ - bfd_vma i; - - /* Instructions should be aligned on 2 byte boundaries. */ - if ((start & 1) == 1) - ++start; - - /* Now look through the unaligned addresses. */ - i = start; - if ((i & 2) == 0) - i += 2; - for (; i < stop; i += 4) - { - unsigned int insn; - const struct sh_opcode *op; - unsigned int prev_insn = 0; - const struct sh_opcode *prev_op = NULL; - - insn = bfd_get_16 (abfd, contents + i); - op = sh_insn_info (insn); - if (op == NULL - || (op->flags & (LOAD | STORE)) == 0) - continue; - - /* This is a load or store which is not on a four byte boundary. */ - - while (*plabel < label_end && **plabel < i) - ++*plabel; - - if (i > start) - { - prev_insn = bfd_get_16 (abfd, contents + i - 2); - prev_op = sh_insn_info (prev_insn); - - /* If the load/store instruction is in a delay slot, we - can't swap. */ - if (prev_op == NULL - || (prev_op->flags & DELAY) != 0) - continue; - } - if (i > start - && (*plabel >= label_end || **plabel != i) - && prev_op != NULL - && (prev_op->flags & (LOAD | STORE)) == 0 - && ! sh_insns_conflict (prev_insn, prev_op, insn, op)) - { - boolean ok; - - /* The load/store instruction does not have a label, and - there is a previous instruction; PREV_INSN is not - itself a load/store instruction, and PREV_INSN and - INSN do not conflict. */ - - ok = true; - - if (i >= start + 4) - { - unsigned int prev2_insn; - const struct sh_opcode *prev2_op; - - prev2_insn = bfd_get_16 (abfd, contents + i - 4); - prev2_op = sh_insn_info (prev2_insn); - - /* If the instruction before PREV_INSN has a delay - slot--that is, PREV_INSN is in a delay slot--we - can not swap. */ - if (prev2_op == NULL - || (prev2_op->flags & DELAY) != 0) - ok = false; - - /* If the instruction before PREV_INSN is a load, - and it sets a register which INSN uses, then - putting INSN immediately after PREV_INSN will - cause a pipeline bubble, so there is no point to - making the swap. */ - if (ok - && (prev2_op->flags & LOAD) != 0 - && sh_load_use (prev2_insn, prev2_op, insn, op)) - ok = false; - } - - if (ok) - { - if (! (*swap) (abfd, sec, relocs, contents, i - 2)) - return false; - *pswapped = true; - continue; - } - } - - while (*plabel < label_end && **plabel < i + 2) - ++*plabel; - - if (i + 2 < stop - && (*plabel >= label_end || **plabel != i + 2)) - { - unsigned int next_insn; - const struct sh_opcode *next_op; - - /* There is an instruction after the load/store - instruction, and it does not have a label. */ - next_insn = bfd_get_16 (abfd, contents + i + 2); - next_op = sh_insn_info (next_insn); - if (next_op != NULL - && (next_op->flags & (LOAD | STORE)) == 0 - && ! sh_insns_conflict (insn, op, next_insn, next_op)) - { - boolean ok; - - /* NEXT_INSN is not itself a load/store instruction, - and it does not conflict with INSN. */ - - ok = true; - - /* If PREV_INSN is a load, and it sets a register - which NEXT_INSN uses, then putting NEXT_INSN - immediately after PREV_INSN will cause a pipeline - bubble, so there is no reason to make this swap. */ - if (prev_op != NULL - && (prev_op->flags & LOAD) != 0 - && sh_load_use (prev_insn, prev_op, next_insn, next_op)) - ok = false; - - /* If INSN is a load, and it sets a register which - the insn after NEXT_INSN uses, then doing the - swap will cause a pipeline bubble, so there is no - reason to make the swap. However, if the insn - after NEXT_INSN is itself a load or store - instruction, then it is misaligned, so - optimistically hope that it will be swapped - itself, and just live with the pipeline bubble if - it isn't. */ - if (ok - && i + 4 < stop - && (op->flags & LOAD) != 0) - { - unsigned int next2_insn; - const struct sh_opcode *next2_op; - - next2_insn = bfd_get_16 (abfd, contents + i + 4); - next2_op = sh_insn_info (next2_insn); - if ((next2_op->flags & (LOAD | STORE)) == 0 - && sh_load_use (insn, op, next2_insn, next2_op)) - ok = false; - } - - if (ok) - { - if (! (*swap) (abfd, sec, relocs, contents, i)) - return false; - *pswapped = true; - continue; - } - } - } - } - - return true; -} - -/* Look for loads and stores which we can align to four byte - boundaries. See the longer comment above sh_relax_section for why - this is desirable. This sets *PSWAPPED if some instruction was - swapped. */ - -static boolean -sh_align_loads (abfd, sec, internal_relocs, contents, pswapped) - bfd *abfd; - asection *sec; - struct internal_reloc *internal_relocs; - bfd_byte *contents; - boolean *pswapped; -{ - struct internal_reloc *irel, *irelend; - bfd_vma *labels = NULL; - bfd_vma *label, *label_end; - - *pswapped = false; - - irelend = internal_relocs + sec->reloc_count; - - /* Get all the addresses with labels on them. */ - labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma)); - if (labels == NULL) - goto error_return; - label_end = labels; - for (irel = internal_relocs; irel < irelend; irel++) - { - if (irel->r_type == R_SH_LABEL) - { - *label_end = irel->r_vaddr - sec->vma; - ++label_end; - } - } - - /* Note that the assembler currently always outputs relocs in - address order. If that ever changes, this code will need to sort - the label values and the relocs. */ - - label = labels; - - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma start, stop; - - if (irel->r_type != R_SH_CODE) - continue; - - start = irel->r_vaddr - sec->vma; - - for (irel++; irel < irelend; irel++) - if (irel->r_type == R_SH_DATA) - break; - if (irel < irelend) - stop = irel->r_vaddr - sec->vma; - else - stop = sec->_cooked_size; - - if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_swap_insns, - (PTR) internal_relocs, &label, - label_end, start, stop, pswapped)) - goto error_return; - } - - free (labels); - - return true; - - error_return: - if (labels != NULL) - free (labels); - return false; -} - -/* Swap two SH instructions. */ - -static boolean -sh_swap_insns (abfd, sec, relocs, contents, addr) - bfd *abfd; - asection *sec; - PTR relocs; - bfd_byte *contents; - bfd_vma addr; -{ - struct internal_reloc *internal_relocs = (struct internal_reloc *) relocs; - unsigned short i1, i2; - struct internal_reloc *irel, *irelend; - - /* Swap the instructions themselves. */ - i1 = bfd_get_16 (abfd, contents + addr); - i2 = bfd_get_16 (abfd, contents + addr + 2); - bfd_put_16 (abfd, i2, contents + addr); - bfd_put_16 (abfd, i1, contents + addr + 2); - - /* Adjust all reloc addresses. */ - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - int type, add; - - /* There are a few special types of relocs that we don't want to - adjust. These relocs do not apply to the instruction itself, - but are only associated with the address. */ - type = irel->r_type; - if (type == R_SH_ALIGN - || type == R_SH_CODE - || type == R_SH_DATA - || type == R_SH_LABEL) - continue; - - /* If an R_SH_USES reloc points to one of the addresses being - swapped, we must adjust it. It would be incorrect to do this - for a jump, though, since we want to execute both - instructions after the jump. (We have avoided swapping - around a label, so the jump will not wind up executing an - instruction it shouldn't). */ - if (type == R_SH_USES) - { - bfd_vma off; - - off = irel->r_vaddr - sec->vma + 4 + irel->r_offset; - if (off == addr) - irel->r_offset += 2; - else if (off == addr + 2) - irel->r_offset -= 2; - } - - if (irel->r_vaddr - sec->vma == addr) - { - irel->r_vaddr += 2; - add = -2; - } - else if (irel->r_vaddr - sec->vma == addr + 2) - { - irel->r_vaddr -= 2; - add = 2; - } - else - add = 0; - - if (add != 0) - { - bfd_byte *loc; - unsigned short insn, oinsn; - boolean overflow; - - loc = contents + irel->r_vaddr - sec->vma; - overflow = false; - switch (type) - { - default: - break; - - case R_SH_PCDISP8BY2: - case R_SH_PCRELIMM8BY2: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - break; - - case R_SH_PCDISP: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - break; - - case R_SH_PCRELIMM8BY4: - /* This reloc ignores the least significant 3 bits of - the program counter before adding in the offset. - This means that if ADDR is at an even address, the - swap will not affect the offset. If ADDR is an at an - odd address, then the instruction will be crossing a - four byte boundary, and must be adjusted. */ - if ((addr & 3) != 0) - { - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - } - - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: fatal: reloc overflow while relaxing", - bfd_get_filename (abfd), (unsigned long) irel->r_vaddr)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - } - - return true; -} - -/* This is a modification of _bfd_coff_generic_relocate_section, which - will handle SH relaxing. */ - -static boolean -sh_relocate_section (output_bfd, info, input_bfd, input_section, contents, - relocs, syms, sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - struct internal_reloc *relocs; - struct internal_syment *syms; - asection **sections; -{ - struct internal_reloc *rel; - struct internal_reloc *relend; - - rel = relocs; - relend = rel + input_section->reloc_count; - for (; rel < relend; rel++) - { - long symndx; - struct coff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma addend; - bfd_vma val; - reloc_howto_type *howto; - bfd_reloc_status_type rstat; - - /* Almost all relocs have to do with relaxing. If any work must - be done for them, it has been done in sh_relax_section. */ - if (rel->r_type != R_SH_IMM32 - && rel->r_type != R_SH_PCDISP) - continue; - - symndx = rel->r_symndx; - - if (symndx == -1) - { - h = NULL; - sym = NULL; - } - else - { - if (symndx < 0 - || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) - { - (*_bfd_error_handler) - ("%s: illegal symbol index %ld in relocs", - bfd_get_filename (input_bfd), symndx); - bfd_set_error (bfd_error_bad_value); - return false; - } - h = obj_coff_sym_hashes (input_bfd)[symndx]; - sym = syms + symndx; - } - - if (sym != NULL && sym->n_scnum != 0) - addend = - sym->n_value; - else - addend = 0; - - if (rel->r_type == R_SH_PCDISP) - addend -= 4; - - if (rel->r_type >= SH_COFF_HOWTO_COUNT) - howto = NULL; - else - howto = &sh_coff_howtos[rel->r_type]; - - if (howto == NULL) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - val = 0; - - if (h == NULL) - { - asection *sec; - - /* There is nothing to do for an internal PCDISP reloc. */ - if (rel->r_type == R_SH_PCDISP) - continue; - - if (symndx == -1) - { - sec = bfd_abs_section_ptr; - val = 0; - } - else - { - sec = sections[symndx]; - val = (sec->output_section->vma - + sec->output_offset - + sym->n_value - - sec->vma); - } - } - else - { - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *sec; - - sec = h->root.u.def.section; - val = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } - else if (! info->relocateable) - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, input_section, - rel->r_vaddr - input_section->vma))) - return false; - } - } - - rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, - rel->r_vaddr - input_section->vma, - val, addend); - - switch (rstat) - { - default: - abort (); - case bfd_reloc_ok: - break; - case bfd_reloc_overflow: - { - const char *name; - char buf[SYMNMLEN + 1]; - - if (symndx == -1) - name = "*ABS*"; - else if (h != NULL) - name = h->root.root.string; - else if (sym->_n._n_n._n_zeroes == 0 - && sym->_n._n_n._n_offset != 0) - name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; - else - { - strncpy (buf, sym->_n._n_name, SYMNMLEN); - buf[SYMNMLEN] = '\0'; - name = buf; - } - - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, input_bfd, - input_section, rel->r_vaddr - input_section->vma))) - return false; - } - } - } - - return true; -} - -/* This is a version of bfd_generic_get_relocated_section_contents - which uses sh_relocate_section. */ - -static bfd_byte * -sh_coff_get_relocated_section_contents (output_bfd, link_info, link_order, - data, relocateable, symbols) - bfd *output_bfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - bfd_byte *data; - boolean relocateable; - asymbol **symbols; -{ - asection *input_section = link_order->u.indirect.section; - bfd *input_bfd = input_section->owner; - asection **sections = NULL; - struct internal_reloc *internal_relocs = NULL; - struct internal_syment *internal_syms = NULL; - - /* We only need to handle the case of relaxing, or of having a - particular set of section contents, specially. */ - if (relocateable - || coff_section_data (input_bfd, input_section) == NULL - || coff_section_data (input_bfd, input_section)->contents == NULL) - return bfd_generic_get_relocated_section_contents (output_bfd, link_info, - link_order, data, - relocateable, - symbols); - - memcpy (data, coff_section_data (input_bfd, input_section)->contents, - input_section->_raw_size); - - if ((input_section->flags & SEC_RELOC) != 0 - && input_section->reloc_count > 0) - { - bfd_size_type symesz = bfd_coff_symesz (input_bfd); - bfd_byte *esym, *esymend; - struct internal_syment *isymp; - asection **secpp; - - if (! _bfd_coff_get_external_symbols (input_bfd)) - goto error_return; - - internal_relocs = (_bfd_coff_read_internal_relocs - (input_bfd, input_section, false, (bfd_byte *) NULL, - false, (struct internal_reloc *) NULL)); - if (internal_relocs == NULL) - goto error_return; - - internal_syms = ((struct internal_syment *) - bfd_malloc (obj_raw_syment_count (input_bfd) - * sizeof (struct internal_syment))); - if (internal_syms == NULL) - goto error_return; - - sections = (asection **) bfd_malloc (obj_raw_syment_count (input_bfd) - * sizeof (asection *)); - if (sections == NULL) - goto error_return; - - isymp = internal_syms; - secpp = sections; - esym = (bfd_byte *) obj_coff_external_syms (input_bfd); - esymend = esym + obj_raw_syment_count (input_bfd) * symesz; - while (esym < esymend) - { - bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp); - - if (isymp->n_scnum != 0) - *secpp = coff_section_from_bfd_index (input_bfd, isymp->n_scnum); - else - { - if (isymp->n_value == 0) - *secpp = bfd_und_section_ptr; - else - *secpp = bfd_com_section_ptr; - } - - esym += (isymp->n_numaux + 1) * symesz; - secpp += isymp->n_numaux + 1; - isymp += isymp->n_numaux + 1; - } - - if (! sh_relocate_section (output_bfd, link_info, input_bfd, - input_section, data, internal_relocs, - internal_syms, sections)) - goto error_return; - - free (sections); - sections = NULL; - free (internal_syms); - internal_syms = NULL; - free (internal_relocs); - internal_relocs = NULL; - } - - return data; - - error_return: - if (internal_relocs != NULL) - free (internal_relocs); - if (internal_syms != NULL) - free (internal_syms); - if (sections != NULL) - free (sections); - return NULL; -} - -/* The target vectors. */ - -const bfd_target shcoff_vec = -{ - "coff-sh", /* name */ - bfd_target_coff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), - '_', /* leading symbol underscore */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - COFF_SWAP_TABLE, -}; - -const bfd_target shlcoff_vec = -{ - "coff-shl", /* name */ - bfd_target_coff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little endian too*/ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), - '_', /* leading symbol underscore */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - COFF_SWAP_TABLE, -}; - -/* Some people want versions of the SH COFF target which do not align - to 16 byte boundaries. We implement that by adding a couple of new - target vectors. These are just like the ones above, but they - change the default section alignment. To generate them in the - assembler, use -small. To use them in the linker, use -b - coff-sh{l}-small and -oformat coff-sh{l}-small. - - Yes, this is a horrible hack. A general solution for setting - section alignment in COFF is rather complex. ELF handles this - correctly. */ - -/* Only recognize the small versions if the target was not defaulted. - Otherwise we won't recognize the non default endianness. */ - -static const bfd_target * -coff_small_object_p (abfd) - bfd *abfd; -{ - if (abfd->target_defaulted) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - return coff_object_p (abfd); -} - -/* Set the section alignment for the small versions. */ - -static boolean -coff_small_new_section_hook (abfd, section) - bfd *abfd; - asection *section; -{ - if (! coff_new_section_hook (abfd, section)) - return false; - - /* We must align to at least a four byte boundary, because longword - accesses must be on a four byte boundary. */ - if (section->alignment_power == COFF_DEFAULT_SECTION_ALIGNMENT_POWER) - section->alignment_power = 2; - - return true; -} - -/* This is copied from bfd_coff_std_swap_table so that we can change - the default section alignment power. */ - -static const bfd_coff_backend_data bfd_coff_small_swap_table = -{ - coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, - coff_swap_aux_out, coff_swap_sym_out, - coff_swap_lineno_out, coff_swap_reloc_out, - coff_swap_filehdr_out, coff_swap_aouthdr_out, - coff_swap_scnhdr_out, - FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, -#ifdef COFF_LONG_FILENAMES - true, -#else - false, -#endif -#ifdef COFF_LONG_SECTION_NAMES - true, -#else - false, -#endif - 2, - coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, - coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, - coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, - coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, - coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, - coff_sym_is_global, coff_compute_section_file_positions, - coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, - coff_adjust_symndx, coff_link_add_one_symbol, - coff_link_output_has_begun, coff_final_link_postscript -}; - -#define coff_small_close_and_cleanup \ - coff_close_and_cleanup -#define coff_small_bfd_free_cached_info \ - coff_bfd_free_cached_info -#define coff_small_get_section_contents \ - coff_get_section_contents -#define coff_small_get_section_contents_in_window \ - coff_get_section_contents_in_window - -const bfd_target shcoff_small_vec = -{ - "coff-sh-small", /* name */ - bfd_target_coff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), - '_', /* leading symbol underscore */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - - {_bfd_dummy_target, coff_small_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff_small), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - (PTR) &bfd_coff_small_swap_table -}; - -const bfd_target shlcoff_small_vec = -{ - "coff-shl-small", /* name */ - bfd_target_coff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little endian too*/ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | BFD_IS_RELAXABLE), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), - '_', /* leading symbol underscore */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - - {_bfd_dummy_target, coff_small_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff_small), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - (PTR) &bfd_coff_small_swap_table -}; diff --git a/contrib/binutils/bfd/coff-tic30.c b/contrib/binutils/bfd/coff-tic30.c deleted file mode 100644 index 5b8ffd4625ff2..0000000000000 --- a/contrib/binutils/bfd/coff-tic30.c +++ /dev/null @@ -1,206 +0,0 @@ -/* BFD back-end for TMS320C30 coff binaries. - Copyright 1998, 1999, 2000 Free Software Foundation, Inc. - Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au) - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "bfdlink.h" -#include "coff/tic30.h" -#include "coff/internal.h" -#include "libcoff.h" - -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) - -reloc_howto_type tic30_coff_howto_table[] = -{ - HOWTO (R_TIC30_ABS16, 2, 1, 16, false, 0, 0, NULL, - "16", false, 0x0000FFFF, 0x0000FFFF, false), - HOWTO (R_TIC30_ABS24, 2, 2, 24, false, 8, complain_overflow_bitfield, NULL, - "24", false, 0xFFFFFF00, 0xFFFFFF00, false), - HOWTO (R_TIC30_LDP, 18, 0, 24, false, 0, complain_overflow_bitfield, NULL, - "LDP", false, 0x00FF0000, 0x000000FF, false), - HOWTO (R_TIC30_ABS32, 2, 2, 32, false, 0, complain_overflow_bitfield, NULL, - "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false), - HOWTO (R_TIC30_PC16, 2, 1, 16, true, 0, complain_overflow_signed, NULL, - "PCREL", false, 0x0000FFFF, 0x0000FFFF, false), - EMPTY_HOWTO (-1) -}; - -#ifndef coff_bfd_reloc_type_lookup -#define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup - -/* For the case statement use the code values used in tc_gen_reloc to - map to the howto table entries that match those in both the aout - and coff implementations. */ -reloc_howto_type * -tic30_coff_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - switch (code) - { - case BFD_RELOC_8: - case BFD_RELOC_TIC30_LDP: - return &tic30_coff_howto_table[2]; - case BFD_RELOC_16: - return &tic30_coff_howto_table[0]; - case BFD_RELOC_24: - return &tic30_coff_howto_table[1]; - case BFD_RELOC_16_PCREL: - return &tic30_coff_howto_table[4]; - case BFD_RELOC_32: - return &tic30_coff_howto_table[3]; - default: - return (reloc_howto_type *) NULL; - } -} - -#endif - -/* Turn a howto into a reloc number */ - -static int -coff_tic30_select_reloc (howto) - reloc_howto_type *howto; -{ - return howto->type; -} - -#define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto) - -#define BADMAG(x) TIC30BADMAG(x) -#define TIC30 1 /* Customize coffcode.h */ -#define __A_MAGIC_SET__ - -/* Code to swap in the reloc */ -#define SWAP_IN_RELOC_OFFSET bfd_h_get_32 -#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 -#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \ -dst->r_stuff[1] = 'C'; - -/* Code to turn a r_type into a howto ptr, uses the above howto table. */ - -static void -rtype2howto (internal, dst) - arelent *internal; - struct internal_reloc *dst; -{ - switch (dst->r_type) - { - case R_TIC30_ABS16: - internal->howto = &tic30_coff_howto_table[0]; - break; - case R_TIC30_ABS24: - internal->howto = &tic30_coff_howto_table[1]; - break; - case R_TIC30_ABS32: - internal->howto = &tic30_coff_howto_table[3]; - break; - case R_TIC30_LDP: - internal->howto = &tic30_coff_howto_table[2]; - break; - case R_TIC30_PC16: - internal->howto = &tic30_coff_howto_table[4]; - break; - default: - abort (); - break; - } -} - -#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) - -/* Perform any necessary magic to the addend in a reloc entry */ - -#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ - cache_ptr->addend = ext_reloc.r_offset; - -#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ - reloc_processing(relent, reloc, symbols, abfd, section) - -static void -reloc_processing (relent, reloc, symbols, abfd, section) - arelent *relent; - struct internal_reloc *reloc; - asymbol **symbols; - bfd *abfd; - asection *section; -{ - relent->address = reloc->r_vaddr; - rtype2howto (relent, reloc); - - if (reloc->r_symndx > 0) - { - relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; - } - else - { - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - } - relent->addend = reloc->r_offset; - relent->address -= section->vma; -} - -#include "coffcode.h" - -const bfd_target tic30_coff_vec = -{ - "coff-tic30", /* name */ - bfd_target_coff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_LITTLE, /* header byte order is little */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - '_', /* leading symbol underscore */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, _bfd_dummy_target}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - COFF_SWAP_TABLE -}; diff --git a/contrib/binutils/bfd/coff-z8k.c b/contrib/binutils/bfd/coff-z8k.c deleted file mode 100644 index 817b6dcd1e682..0000000000000 --- a/contrib/binutils/bfd/coff-z8k.c +++ /dev/null @@ -1,233 +0,0 @@ -/* BFD back-end for Zilog Z800n COFF binaries. - Copyright 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001 - Free Software Foundation, Inc. - Contributed by Cygnus Support. - Written by Steve Chamberlain, <sac@cygnus.com>. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "bfdlink.h" -#include "coff/z8k.h" -#include "coff/internal.h" -#include "libcoff.h" - -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) - -static reloc_howto_type r_imm32 = -HOWTO (R_IMM32, 0, 1, 32, false, 0, - complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, - 0xffffffff, false); - -static reloc_howto_type r_imm4l = -HOWTO (R_IMM4L, 0, 1, 4, false, 0, - complain_overflow_bitfield, 0, "r_imm4l", true, 0xf, 0xf, false); - -static reloc_howto_type r_da = -HOWTO (R_IMM16, 0, 1, 16, false, 0, - complain_overflow_bitfield, 0, "r_da", true, 0x0000ffff, 0x0000ffff, - false); - -static reloc_howto_type r_imm8 = -HOWTO (R_IMM8, 0, 1, 8, false, 0, - complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, - false); - -static reloc_howto_type r_jr = -HOWTO (R_JR, 0, 1, 8, true, 0, complain_overflow_signed, 0, - "r_jr", true, 0, 0, true); - -/* Turn a howto into a reloc number */ - -static int -coff_z8k_select_reloc (howto) - reloc_howto_type *howto; -{ - return howto->type; -} - -#define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto) - -#define BADMAG(x) Z8KBADMAG(x) -#define Z8K 1 /* Customize coffcode.h */ -#define __A_MAGIC_SET__ - -/* Code to swap in the reloc */ -#define SWAP_IN_RELOC_OFFSET bfd_h_get_32 -#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 -#define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ - dst->r_stuff[0] = 'S'; \ - dst->r_stuff[1] = 'C'; - -/* Code to turn a r_type into a howto ptr, uses the above howto table - */ - -static void -rtype2howto (internal, dst) - arelent * internal; - struct internal_reloc *dst; -{ - switch (dst->r_type) - { - default: - abort (); - break; - case R_IMM8: - internal->howto = &r_imm8; - break; - case R_IMM16: - internal->howto = &r_da; - break; - case R_JR: - internal->howto = &r_jr; - break; - case R_IMM32: - internal->howto = &r_imm32; - break; - case R_IMM4L: - internal->howto = &r_imm4l; - break; - } -} - -#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) - -/* Perform any necessary magic to the addend in a reloc entry */ - -#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ - cache_ptr->addend = ext_reloc.r_offset; - -#define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ - reloc_processing(relent, reloc, symbols, abfd, section) - -static void -reloc_processing (relent, reloc, symbols, abfd, section) - arelent * relent; - struct internal_reloc *reloc; - asymbol ** symbols; - bfd * abfd; - asection * section; -{ - relent->address = reloc->r_vaddr; - rtype2howto (relent, reloc); - - if (reloc->r_symndx > 0) - { - relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; - } - else - { - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - } - - relent->addend = reloc->r_offset; - relent->address -= section->vma; -} - -static void -extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) - bfd *in_abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - arelent *reloc; - bfd_byte *data; - unsigned int *src_ptr; - unsigned int *dst_ptr; -{ - asection *input_section = link_order->u.indirect.section; - - switch (reloc->howto->type) - { - case R_IMM8: - bfd_put_8 (in_abfd, - bfd_coff_reloc16_get_value (reloc, link_info, input_section), - data + *dst_ptr); - (*dst_ptr) += 1; - (*src_ptr) += 1; - break; - - case R_IMM32: - bfd_put_32 (in_abfd, - bfd_coff_reloc16_get_value (reloc, link_info, input_section), - data + *dst_ptr); - (*dst_ptr) += 4; - (*src_ptr) += 4; - break; - - case R_IMM4L: - bfd_put_8 (in_abfd, - ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0) - | (0x0f - & bfd_coff_reloc16_get_value (reloc, link_info, - input_section))), - data + *dst_ptr); - (*dst_ptr) += 1; - (*src_ptr) += 1; - break; - - case R_IMM16: - bfd_put_16 (in_abfd, - bfd_coff_reloc16_get_value (reloc, link_info, input_section), - data + *dst_ptr); - (*dst_ptr) += 2; - (*src_ptr) += 2; - break; - - case R_JR: - { - bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, - input_section); - bfd_vma dot = (link_order->offset - + *dst_ptr - + input_section->output_section->vma); - int gap = dst - dot - 1;/* -1 since were in the odd byte of the - word and the pc's been incremented */ - - if (gap & 1) - abort (); - gap /= 2; - if (gap > 128 || gap < -128) - { - if (! ((*link_info->callbacks->reloc_overflow) - (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), - reloc->howto->name, reloc->addend, input_section->owner, - input_section, reloc->address))) - abort (); - } - bfd_put_8 (in_abfd, gap, data + *dst_ptr); - (*dst_ptr)++; - (*src_ptr)++; - break; - } - default: - abort (); - } -} - -#define coff_reloc16_extra_cases extra_case - -#include "coffcode.h" - -#undef coff_bfd_get_relocated_section_contents -#undef coff_bfd_relax_section -#define coff_bfd_get_relocated_section_contents \ - bfd_coff_reloc16_get_relocated_section_contents -#define coff_bfd_relax_section bfd_coff_reloc16_relax_section - -CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL) diff --git a/contrib/binutils/bfd/cpu-mips.c b/contrib/binutils/bfd/cpu-mips.c deleted file mode 100644 index a933b8cd10bcc..0000000000000 --- a/contrib/binutils/bfd/cpu-mips.c +++ /dev/null @@ -1,88 +0,0 @@ -/* bfd back-end for mips support - Copyright (C) 1990, 91-97, 1998 Free Software Foundation, Inc. - Written by Steve Chamberlain of Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -#define N(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT) \ - { \ - BITS_WORD, /* bits in a word */ \ - BITS_ADDR, /* bits in an address */ \ - 8, /* 8 bits in a byte */ \ - bfd_arch_mips, \ - NUMBER, \ - "mips", \ - PRINT, \ - 3, \ - DEFAULT, \ - bfd_default_compatible, \ - bfd_default_scan, \ - NEXT, \ - } - -enum { -I_mips3000, -I_mips3900, -I_mips4000, -I_mips4010, -I_mips4100, -I_mips4111, -I_mips4300, -I_mips4400, -I_mips4600, -I_mips4650, -I_mips5000, -I_mips6000, -I_mips8000, -I_mips10000, -I_mips16 -}; - - -#define NN(index) (&arch_info_struct[(index)+1]) - -static const bfd_arch_info_type arch_info_struct[] = -{ - N (32, 32, bfd_mach_mips3000, "mips:3000", false, NN(I_mips3000)), - N (32, 32, bfd_mach_mips3900, "mips:3900", false, NN(I_mips3900)), - N (64, 64, bfd_mach_mips4000, "mips:4000", false, NN(I_mips4000)), - N (64, 64, bfd_mach_mips4010, "mips:4010", false, NN(I_mips4010)), - N (64, 64, bfd_mach_mips4100, "mips:4100", false, NN(I_mips4100)), - N (64, 64, bfd_mach_mips4111, "mips:4111", false, NN(I_mips4111)), - N (64, 64, bfd_mach_mips4300, "mips:4300", false, NN(I_mips4300)), - N (64, 64, bfd_mach_mips4400, "mips:4400", false, NN(I_mips4400)), - N (64, 64, bfd_mach_mips4600, "mips:4600", false, NN(I_mips4600)), - N (64, 64, bfd_mach_mips4650, "mips:4650", false, NN(I_mips4650)), - N (64, 64, bfd_mach_mips5000, "mips:5000", false, NN(I_mips5000)), - N (32, 32, bfd_mach_mips6000, "mips:6000", false, NN(I_mips6000)), - N (64, 64, bfd_mach_mips8000, "mips:8000", false, NN(I_mips8000)), - N (64, 64, bfd_mach_mips10000, "mips:10000", false, NN(I_mips10000)), - - - N (64, 64, bfd_mach_mips16, "mips:16", false, 0), -}; - -/* The default architecture is mips:3000, but with a machine number of - zero. This lets the linker distinguish between a default setting - of mips, and an explicit setting of mips:3000. */ - -const bfd_arch_info_type bfd_mips_arch = -N (32, 32, 0, "mips", true, &arch_info_struct[0]); diff --git a/contrib/binutils/bfd/cpu-sh.c b/contrib/binutils/bfd/cpu-sh.c deleted file mode 100644 index 9f7ef20214213..0000000000000 --- a/contrib/binutils/bfd/cpu-sh.c +++ /dev/null @@ -1,117 +0,0 @@ -/* BFD library support routines for the Hitachi-SH architecture. - Copyright (C) 1993 Free Software Foundation, Inc. - Hacked by Steve Chamberlain of Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - - -static boolean -scan_mach (info, string) - const struct bfd_arch_info *info; - const char *string; -{ - if (strcasecmp (info->printable_name, string) == 0) - return true; - return false; -} - - -#if 0 -/* This routine is provided two arch_infos and returns whether - they'd be compatible */ - -static const bfd_arch_info_type * -compatible (a,b) - const bfd_arch_info_type *a; - const bfd_arch_info_type *b; -{ - if (a->arch != b->arch || a->mach != b->mach) - return NULL; - return a; -} -#endif - -#define SH_NEXT &arch_info_struct[0] -#define SH3_NEXT &arch_info_struct[1] -#define SH3E_NEXT &arch_info_struct[2] -#define SH4_NEXT NULL - -static const bfd_arch_info_type arch_info_struct[] = -{ - { - 32, /* 32 bits in a word */ - 32, /* 32 bits in an address */ - 8, /* 8 bits in a byte */ - bfd_arch_sh, - bfd_mach_sh3, - "sh", /* arch_name */ - "sh3", /* printable name */ - 1, - false, /* not the default */ - bfd_default_compatible, - scan_mach, - SH3_NEXT - }, - { - 32, /* 32 bits in a word */ - 32, /* 32 bits in an address */ - 8, /* 8 bits in a byte */ - bfd_arch_sh, - bfd_mach_sh3e, - "sh", /* arch_name */ - "sh3e", /* printable name */ - 1, - false, /* not the default */ - bfd_default_compatible, - scan_mach, - SH3E_NEXT - }, - { - 32, /* 32 bits in a word */ - 32, /* 32 bits in an address */ - 8, /* 8 bits in a byte */ - bfd_arch_sh, - bfd_mach_sh4, - "sh", /* arch_name */ - "sh4", /* printable name */ - 1, - false, /* not the default */ - bfd_default_compatible, - scan_mach, - SH4_NEXT - }, -}; - -const bfd_arch_info_type bfd_sh_arch = -{ - 32, /* 32 bits in a word */ - 32, /* 32 bits in an address */ - 8, /* 8 bits in a byte */ - bfd_arch_sh, - bfd_mach_sh, - "sh", /* arch_name */ - "sh", /* printable name */ - 1, - true, /* the default machine */ - bfd_default_compatible, - scan_mach, - SH_NEXT -}; diff --git a/contrib/binutils/bfd/cpu-tic30.c b/contrib/binutils/bfd/cpu-tic30.c deleted file mode 100644 index dd723f7b4a59f..0000000000000 --- a/contrib/binutils/bfd/cpu-tic30.c +++ /dev/null @@ -1,39 +0,0 @@ -/* BFD support for the Texas Instruments TMS320C30 architecture. - Copyright 1998 Free Software Foundation, Inc. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -const bfd_arch_info_type bfd_tic30_arch = -{ - 32, /* 32 bits in a word */ - 32, /* 32 bits in an address */ - 8, /* 8 bits in a byte */ - bfd_arch_tic30, - 0, /* only 1 machine */ - "tic30", - "tms320c30", - 2, - true, /* the one and only */ - bfd_default_compatible, - bfd_default_scan, - 0, -}; diff --git a/contrib/binutils/bfd/cpu-v850.c b/contrib/binutils/bfd/cpu-v850.c deleted file mode 100644 index 5eb5b742ad928..0000000000000 --- a/contrib/binutils/bfd/cpu-v850.c +++ /dev/null @@ -1,103 +0,0 @@ -/* BFD support for the NEC V850 processor - Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -#include <ctype.h> - -static boolean -scan (info, string) - const struct bfd_arch_info * info; - const char * string; -{ - const char *ptr_src; - const char *ptr_tst; - unsigned long number; - enum bfd_architecture arch; - - /* First test for an exact match */ - if (strcasecmp (string, info->printable_name) == 0) - return true; - - /* See how much of the supplied string matches with the - architecture, eg the string m68k:68020 would match the m68k entry - up to the :, then we get left with the machine number */ - - for (ptr_src = string, ptr_tst = info->arch_name; - *ptr_src && *ptr_tst; - ptr_src++, ptr_tst++) - { - if (*ptr_src != *ptr_tst) break; - } - - /* Chewed up as much of the architecture as will match, skip any - colons */ - if (*ptr_src == ':') - ptr_src++; - - if (*ptr_src == 0) - { - /* nothing more, then only keep this one if it is the default - machine for this architecture */ - return info->the_default; - } - - number = 0; - while (isdigit ((unsigned char) *ptr_src)) - { - number = number * 10 + * ptr_src - '0'; - ptr_src++; - } - - switch (number) - { - case bfd_mach_v850e: arch = bfd_arch_v850; break; - case bfd_mach_v850ea: arch = bfd_arch_v850; break; - default: - return false; - } - - if (arch != info->arch) - return false; - - if (number != info->mach) - return false; - - return true; -} - -#define N(number, print, default, next) \ -{ 32, 32, 8, bfd_arch_v850, number, "v850", print, 2, default, \ - bfd_default_compatible, scan, next } - -#define NEXT NULL - -static const bfd_arch_info_type arch_info_struct[] = -{ - N (bfd_mach_v850e, "v850e", false, &arch_info_struct[1]), - N (bfd_mach_v850ea, "v850ea", false, NULL) -}; - -#undef NEXT -#define NEXT &arch_info_struct[0] - -const bfd_arch_info_type bfd_v850_arch = - N (bfd_mach_v850, "v850", true, NEXT); diff --git a/contrib/binutils/bfd/cpu-z8k.c b/contrib/binutils/bfd/cpu-z8k.c deleted file mode 100644 index 643932a2b6def..0000000000000 --- a/contrib/binutils/bfd/cpu-z8k.c +++ /dev/null @@ -1,190 +0,0 @@ -/* BFD library support routines for the Z800n architecture. - Copyright 1992, 1993, 1994, 2000 Free Software Foundation, Inc. - Hacked by Steve Chamberlain of Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -#if 0 /* not used currently */ -/* -Relocations for the Z8K - -*/ -static bfd_reloc_status_type -howto16_callback (abfd, reloc_entry, symbol_in, data, - ignore_input_section, ignore_bfd) - bfd *abfd; - arelent *reloc_entry; - struct symbol_cache_entry *symbol_in; - PTR data; - asection *ignore_input_section; - bfd *ignore_bfd; -{ - long relocation = 0; - bfd_vma addr = reloc_entry->address; - long x = bfd_get_16 (abfd, (bfd_byte *) data + addr); - - HOWTO_PREPARE (relocation, symbol_in); - - x = (x + relocation + reloc_entry->addend); - - bfd_put_16 (abfd, x, (bfd_byte *) data + addr); - return bfd_reloc_ok; -} - -static bfd_reloc_status_type -howto8_callback (abfd, reloc_entry, symbol_in, data, - ignore_input_section, ignore_bfd) - bfd *abfd; - arelent *reloc_entry; - struct symbol_cache_entry *symbol_in; - PTR data; - asection *ignore_input_section; - bfd *ignore_bfd; -{ - long relocation = 0; - bfd_vma addr = reloc_entry->address; - long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); - - HOWTO_PREPARE (relocation, symbol_in); - - x = (x + relocation + reloc_entry->addend); - - bfd_put_8 (abfd, x, (bfd_byte *) data + addr); - return bfd_reloc_ok; -} - -static bfd_reloc_status_type -howto8_FFnn_callback (abfd, reloc_entry, symbol_in, data, - ignore_input_section, ignore_bfd) - bfd *abfd; - arelent *reloc_entry; - struct symbol_cache_entry *symbol_in; - PTR data; - asection *ignore_input_section; - bfd *ignore_bfd; -{ - long relocation = 0; - bfd_vma addr = reloc_entry->address; - - long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); - abort (); - HOWTO_PREPARE (relocation, symbol_in); - - x = (x + relocation + reloc_entry->addend); - - bfd_put_8 (abfd, x, (bfd_byte *) data + addr); - return bfd_reloc_ok; -} - -static bfd_reloc_status_type -howto8_pcrel_callback (abfd, reloc_entry, symbol_in, data, - ignore_input_section, ignore_bfd) - bfd *abfd; - arelent *reloc_entry; - struct symbol_cache_entry *symbol_in; - PTR data; - asection *ignore_input_section; - bfd *ignore_bfd; -{ - long relocation = 0; - bfd_vma addr = reloc_entry->address; - long x = bfd_get_8 (abfd, (bfd_byte *) data + addr); - abort (); - HOWTO_PREPARE (relocation, symbol_in); - - x = (x + relocation + reloc_entry->addend); - - bfd_put_8 (abfd, x, (bfd_byte *) data + addr); - return bfd_reloc_ok; -} - -static reloc_howto_type howto_16 -= NEWHOWTO (howto16_callback, "abs16", 1, false, false); -static reloc_howto_type howto_8 -= NEWHOWTO (howto8_callback, "abs8", 0, false, false); - -static reloc_howto_type howto_8_FFnn -= NEWHOWTO (howto8_FFnn_callback, "ff00+abs8", 0, false, false); - -static reloc_howto_type howto_8_pcrel -= NEWHOWTO (howto8_pcrel_callback, "pcrel8", 0, false, true); - -static reloc_howto_type * -local_bfd_reloc_type_lookup (arch, code) - const struct bfd_arch_info *arch; - bfd_reloc_code_real_type code; -{ - switch (code) - { - case BFD_RELOC_16: - return &howto_16; - case BFD_RELOC_8_FFnn: - return &howto_8_FFnn; - case BFD_RELOC_8: - return &howto_8; - case BFD_RELOC_8_PCREL: - return &howto_8_pcrel; - default: - return (reloc_howto_type *) NULL; - } -} -#endif - -int bfd_default_scan_num_mach (); - -static boolean -scan_mach (info, string) - const struct bfd_arch_info *info; - const char *string; -{ - if (strcmp (string, "z8001") == 0 || strcmp (string, "z8k") == 0) - { - return bfd_mach_z8001 == info->mach; - } - if (strcmp (string, "z8002") == 0) - { - return bfd_mach_z8002 == info->mach; - } - return false; -} - -/* This routine is provided two arch_infos and returns whether - they'd be compatible */ - -static const bfd_arch_info_type * -compatible (a, b) - const bfd_arch_info_type *a; - const bfd_arch_info_type *b; -{ - if (a->arch != b->arch || a->mach != b->mach) - return NULL; - return a; -} - -static const bfd_arch_info_type arch_info_struct[] = -{ - {32, 32, 8, bfd_arch_z8k, bfd_mach_z8001, "z8k", "z8001", 1, false, compatible, scan_mach, 0,}, -}; - -const bfd_arch_info_type bfd_z8k_arch = -{ - 32, 16, 8, bfd_arch_z8k, bfd_mach_z8002, "z8k", "z8002", 1, true, compatible, scan_mach, &arch_info_struct[0], -}; diff --git a/contrib/binutils/bfd/doc/bfd.texi b/contrib/binutils/bfd/doc/bfd.texi deleted file mode 100644 index ea0ca9e56dc96..0000000000000 --- a/contrib/binutils/bfd/doc/bfd.texi +++ /dev/null @@ -1,585 +0,0 @@ -@section @code{typedef bfd} -A BFD has type @code{bfd}; objects of this type are the -cornerstone of any application using BFD. Using BFD -consists of making references though the BFD and to data in the BFD. - -Here is the structure that defines the type @code{bfd}. It -contains the major data about the file and pointers -to the rest of the data. -@* -. -@example -struct _bfd -@{ - /* The filename the application opened the BFD with. */ - CONST char *filename; - - /* A pointer to the target jump table. */ - const struct bfd_target *xvec; - - /* To avoid dragging too many header files into every file that - includes `@code{bfd.h}', IOSTREAM has been declared as a "char - *", and MTIME as a "long". Their correct types, to which they - are cast when used, are "FILE *" and "time_t". The iostream - is the result of an fopen on the filename. However, if the - BFD_IN_MEMORY flag is set, then iostream is actually a pointer - to a bfd_in_memory struct. */ - PTR iostream; - - /* Is the file descriptor being cached? That is, can it be closed as - needed, and re-opened when accessed later? */ - - boolean cacheable; - - /* Marks whether there was a default target specified when the - BFD was opened. This is used to select which matching algorithm - to use to choose the back end. */ - - boolean target_defaulted; - - /* The caching routines use these to maintain a - least-recently-used list of BFDs */ - - struct _bfd *lru_prev, *lru_next; - - /* When a file is closed by the caching routines, BFD retains - state information on the file here: */ - - file_ptr where; - - /* and here: (``once'' means at least once) */ - - boolean opened_once; - - /* Set if we have a locally maintained mtime value, rather than - getting it from the file each time: */ - - boolean mtime_set; - - /* File modified time, if mtime_set is true: */ - - long mtime; - - /* Reserved for an unimplemented file locking extension.*/ - - int ifd; - - /* The format which belongs to the BFD. (object, core, etc.) */ - - bfd_format format; - - /* The direction the BFD was opened with*/ - - enum bfd_direction @{no_direction = 0, - read_direction = 1, - write_direction = 2, - both_direction = 3@} direction; - - /* Format_specific flags*/ - - flagword flags; - - /* Currently my_archive is tested before adding origin to - anything. I believe that this can become always an add of - origin, with origin set to 0 for non archive files. */ - - file_ptr origin; - - /* Remember when output has begun, to stop strange things - from happening. */ - boolean output_has_begun; - - /* Pointer to linked list of sections*/ - struct sec *sections; - - /* The number of sections */ - unsigned int section_count; - - /* Stuff only useful for object files: - The start address. */ - bfd_vma start_address; - - /* Used for input and output*/ - unsigned int symcount; - - /* Symbol table for output BFD (with symcount entries) */ - struct symbol_cache_entry **outsymbols; - - /* Pointer to structure which contains architecture information*/ - const struct bfd_arch_info *arch_info; - - /* Stuff only useful for archives:*/ - PTR arelt_data; - struct _bfd *my_archive; /* The containing archive BFD. */ - struct _bfd *next; /* The next BFD in the archive. */ - struct _bfd *archive_head; /* The first BFD in the archive. */ - boolean has_armap; - - /* A chain of BFD structures involved in a link. */ - struct _bfd *link_next; - - /* A field used by _bfd_generic_link_add_archive_symbols. This will - be used only for archive elements. */ - int archive_pass; - - /* Used by the back end to hold private data. */ - - union - @{ - struct aout_data_struct *aout_data; - struct artdata *aout_ar_data; - struct _oasys_data *oasys_obj_data; - struct _oasys_ar_data *oasys_ar_data; - struct coff_tdata *coff_obj_data; - struct pe_tdata *pe_obj_data; - struct xcoff_tdata *xcoff_obj_data; - struct ecoff_tdata *ecoff_obj_data; - struct ieee_data_struct *ieee_data; - struct ieee_ar_data_struct *ieee_ar_data; - struct srec_data_struct *srec_data; - struct ihex_data_struct *ihex_data; - struct tekhex_data_struct *tekhex_data; - struct elf_obj_tdata *elf_obj_data; - struct nlm_obj_tdata *nlm_obj_data; - struct bout_data_struct *bout_data; - struct sun_core_struct *sun_core_data; - struct trad_core_struct *trad_core_data; - struct som_data_struct *som_data; - struct hpux_core_struct *hpux_core_data; - struct hppabsd_core_struct *hppabsd_core_data; - struct sgi_core_struct *sgi_core_data; - struct lynx_core_struct *lynx_core_data; - struct osf_core_struct *osf_core_data; - struct cisco_core_struct *cisco_core_data; - struct versados_data_struct *versados_data; - struct netbsd_core_struct *netbsd_core_data; - PTR any; - @} tdata; - - /* Used by the application to hold private data*/ - PTR usrdata; - - /* Where all the allocated stuff under this BFD goes. This is a - struct objalloc *, but we use PTR to avoid requiring the inclusion of - objalloc.h. */ - PTR memory; -@}; - -@end example -@section Error reporting -Most BFD functions return nonzero on success (check their -individual documentation for precise semantics). On an error, -they call @code{bfd_set_error} to set an error condition that callers -can check by calling @code{bfd_get_error}. -If that returns @code{bfd_error_system_call}, then check -@code{errno}. - -The easiest way to report a BFD error to the user is to -use @code{bfd_perror}. -@* -@subsection Type @code{bfd_error_type} -The values returned by @code{bfd_get_error} are defined by the -enumerated type @code{bfd_error_type}. -@* -. -@example -typedef enum bfd_error -@{ - bfd_error_no_error = 0, - bfd_error_system_call, - bfd_error_invalid_target, - bfd_error_wrong_format, - bfd_error_invalid_operation, - bfd_error_no_memory, - bfd_error_no_symbols, - bfd_error_no_armap, - bfd_error_no_more_archived_files, - bfd_error_malformed_archive, - bfd_error_file_not_recognized, - bfd_error_file_ambiguously_recognized, - bfd_error_no_contents, - bfd_error_nonrepresentable_section, - bfd_error_no_debug_section, - bfd_error_bad_value, - bfd_error_file_truncated, - bfd_error_file_too_big, - bfd_error_invalid_error_code -@} bfd_error_type; - -@end example -@findex bfd_get_error -@subsubsection @code{bfd_get_error} -@strong{Synopsis} -@example -bfd_error_type bfd_get_error (void); -@end example -@strong{Description}@* -Return the current BFD error condition. -@* -@findex bfd_set_error -@subsubsection @code{bfd_set_error} -@strong{Synopsis} -@example -void bfd_set_error (bfd_error_type error_tag); -@end example -@strong{Description}@* -Set the BFD error condition to be @var{error_tag}. -@* -@findex bfd_errmsg -@subsubsection @code{bfd_errmsg} -@strong{Synopsis} -@example -CONST char *bfd_errmsg (bfd_error_type error_tag); -@end example -@strong{Description}@* -Return a string describing the error @var{error_tag}, or -the system error if @var{error_tag} is @code{bfd_error_system_call}. -@* -@findex bfd_perror -@subsubsection @code{bfd_perror} -@strong{Synopsis} -@example -void bfd_perror (CONST char *message); -@end example -@strong{Description}@* -Print to the standard error stream a string describing the -last BFD error that occurred, or the last system error if -the last BFD error was a system call failure. If @var{message} -is non-NULL and non-empty, the error string printed is preceded -by @var{message}, a colon, and a space. It is followed by a newline. -@* -@subsection BFD error handler -Some BFD functions want to print messages describing the -problem. They call a BFD error handler function. This -function may be overriden by the program. - -The BFD error handler acts like printf. -@* -. -@example -typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...)); - -@end example -@findex bfd_set_error_handler -@subsubsection @code{bfd_set_error_handler} -@strong{Synopsis} -@example -bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); -@end example -@strong{Description}@* -Set the BFD error handler function. Returns the previous -function. -@* -@findex bfd_set_error_program_name -@subsubsection @code{bfd_set_error_program_name} -@strong{Synopsis} -@example -void bfd_set_error_program_name (const char *); -@end example -@strong{Description}@* -Set the program name to use when printing a BFD error. This -is printed before the error message followed by a colon and -space. The string must not be changed after it is passed to -this function. -@* -@section Symbols - -@* -@findex bfd_get_reloc_upper_bound -@subsubsection @code{bfd_get_reloc_upper_bound} -@strong{Synopsis} -@example -long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect); -@end example -@strong{Description}@* -Return the number of bytes required to store the -relocation information associated with section @var{sect} -attached to bfd @var{abfd}. If an error occurs, return -1. -@* -@findex bfd_canonicalize_reloc -@subsubsection @code{bfd_canonicalize_reloc} -@strong{Synopsis} -@example -long bfd_canonicalize_reloc - (bfd *abfd, - asection *sec, - arelent **loc, - asymbol **syms); -@end example -@strong{Description}@* -Call the back end associated with the open BFD -@var{abfd} and translate the external form of the relocation -information attached to @var{sec} into the internal canonical -form. Place the table into memory at @var{loc}, which has -been preallocated, usually by a call to -@code{bfd_get_reloc_upper_bound}. Returns the number of relocs, or --1 on error. - -The @var{syms} table is also needed for horrible internal magic -reasons. -@* -@findex bfd_set_reloc -@subsubsection @code{bfd_set_reloc} -@strong{Synopsis} -@example -void bfd_set_reloc - (bfd *abfd, asection *sec, arelent **rel, unsigned int count) -@end example -@strong{Description}@* -Set the relocation pointer and count within -section @var{sec} to the values @var{rel} and @var{count}. -The argument @var{abfd} is ignored. -@* -@findex bfd_set_file_flags -@subsubsection @code{bfd_set_file_flags} -@strong{Synopsis} -@example -boolean bfd_set_file_flags(bfd *abfd, flagword flags); -@end example -@strong{Description}@* -Set the flag word in the BFD @var{abfd} to the value @var{flags}. - -Possible errors are: -@itemize @bullet - -@item -@code{bfd_error_wrong_format} - The target bfd was not of object format. -@item -@code{bfd_error_invalid_operation} - The target bfd was open for reading. -@item -@code{bfd_error_invalid_operation} - -The flag word contained a bit which was not applicable to the -type of file. E.g., an attempt was made to set the @code{D_PAGED} bit -on a BFD format which does not support demand paging. -@end itemize -@* -@findex bfd_set_start_address -@subsubsection @code{bfd_set_start_address} -@strong{Synopsis} -@example -boolean bfd_set_start_address(bfd *abfd, bfd_vma vma); -@end example -@strong{Description}@* -Make @var{vma} the entry point of output BFD @var{abfd}. -@* -@strong{Returns}@* -Returns @code{true} on success, @code{false} otherwise. -@* -@findex bfd_get_mtime -@subsubsection @code{bfd_get_mtime} -@strong{Synopsis} -@example -long bfd_get_mtime(bfd *abfd); -@end example -@strong{Description}@* -Return the file modification time (as read from the file system, or -from the archive header for archive members). -@* -@findex bfd_get_size -@subsubsection @code{bfd_get_size} -@strong{Synopsis} -@example -long bfd_get_size(bfd *abfd); -@end example -@strong{Description}@* -Return the file size (as read from file system) for the file -associated with BFD @var{abfd}. - -The initial motivation for, and use of, this routine is not -so we can get the exact size of the object the BFD applies to, since -that might not be generally possible (archive members for example). -It would be ideal if someone could eventually modify -it so that such results were guaranteed. - -Instead, we want to ask questions like "is this NNN byte sized -object I'm about to try read from file offset YYY reasonable?" -As as example of where we might do this, some object formats -use string tables for which the first @code{sizeof(long)} bytes of the -table contain the size of the table itself, including the size bytes. -If an application tries to read what it thinks is one of these -string tables, without some way to validate the size, and for -some reason the size is wrong (byte swapping error, wrong location -for the string table, etc.), the only clue is likely to be a read -error when it tries to read the table, or a "virtual memory -exhausted" error when it tries to allocate 15 bazillon bytes -of space for the 15 bazillon byte table it is about to read. -This function at least allows us to answer the quesion, "is the -size reasonable?". -@* -@findex bfd_get_gp_size -@subsubsection @code{bfd_get_gp_size} -@strong{Synopsis} -@example -int bfd_get_gp_size(bfd *abfd); -@end example -@strong{Description}@* -Return the maximum size of objects to be optimized using the GP -register under MIPS ECOFF. This is typically set by the @code{-G} -argument to the compiler, assembler or linker. -@* -@findex bfd_set_gp_size -@subsubsection @code{bfd_set_gp_size} -@strong{Synopsis} -@example -void bfd_set_gp_size(bfd *abfd, int i); -@end example -@strong{Description}@* -Set the maximum size of objects to be optimized using the GP -register under ECOFF or MIPS ELF. This is typically set by -the @code{-G} argument to the compiler, assembler or linker. -@* -@findex bfd_scan_vma -@subsubsection @code{bfd_scan_vma} -@strong{Synopsis} -@example -bfd_vma bfd_scan_vma(CONST char *string, CONST char **end, int base); -@end example -@strong{Description}@* -Convert, like @code{strtoul}, a numerical expression -@var{string} into a @code{bfd_vma} integer, and return that integer. -(Though without as many bells and whistles as @code{strtoul}.) -The expression is assumed to be unsigned (i.e., positive). -If given a @var{base}, it is used as the base for conversion. -A base of 0 causes the function to interpret the string -in hex if a leading "0x" or "0X" is found, otherwise -in octal if a leading zero is found, otherwise in decimal. - -Overflow is not detected. -@* -@findex bfd_copy_private_bfd_data -@subsubsection @code{bfd_copy_private_bfd_data} -@strong{Synopsis} -@example -boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd); -@end example -@strong{Description}@* -Copy private BFD information from the BFD @var{ibfd} to the -the BFD @var{obfd}. Return @code{true} on success, @code{false} on error. -Possible error returns are: - -@itemize @bullet - -@item -@code{bfd_error_no_memory} - -Not enough memory exists to create private data for @var{obfd}. -@end itemize -@example -#define bfd_copy_private_bfd_data(ibfd, obfd) \ - BFD_SEND (obfd, _bfd_copy_private_bfd_data, \ - (ibfd, obfd)) -@end example -@* -@findex bfd_merge_private_bfd_data -@subsubsection @code{bfd_merge_private_bfd_data} -@strong{Synopsis} -@example -boolean bfd_merge_private_bfd_data(bfd *ibfd, bfd *obfd); -@end example -@strong{Description}@* -Merge private BFD information from the BFD @var{ibfd} to the -the output file BFD @var{obfd} when linking. Return @code{true} -on success, @code{false} on error. Possible error returns are: - -@itemize @bullet - -@item -@code{bfd_error_no_memory} - -Not enough memory exists to create private data for @var{obfd}. -@end itemize -@example -#define bfd_merge_private_bfd_data(ibfd, obfd) \ - BFD_SEND (obfd, _bfd_merge_private_bfd_data, \ - (ibfd, obfd)) -@end example -@* -@findex bfd_set_private_flags -@subsubsection @code{bfd_set_private_flags} -@strong{Synopsis} -@example -boolean bfd_set_private_flags(bfd *abfd, flagword flags); -@end example -@strong{Description}@* -Set private BFD flag information in the BFD @var{abfd}. -Return @code{true} on success, @code{false} on error. Possible error -returns are: - -@itemize @bullet - -@item -@code{bfd_error_no_memory} - -Not enough memory exists to create private data for @var{obfd}. -@end itemize -@example -#define bfd_set_private_flags(abfd, flags) \ - BFD_SEND (abfd, _bfd_set_private_flags, \ - (abfd, flags)) -@end example -@* -@findex stuff -@subsubsection @code{stuff} -@strong{Description}@* -Stuff which should be documented: -@example -#define bfd_sizeof_headers(abfd, reloc) \ - BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc)) - -#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ - BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, sec, syms, off, file, func, line)) - - /* Do these three do anything useful at all, for any back end? */ -#define bfd_debug_info_start(abfd) \ - BFD_SEND (abfd, _bfd_debug_info_start, (abfd)) - -#define bfd_debug_info_end(abfd) \ - BFD_SEND (abfd, _bfd_debug_info_end, (abfd)) - -#define bfd_debug_info_accumulate(abfd, section) \ - BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section)) - - -#define bfd_stat_arch_elt(abfd, stat) \ - BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat)) - -#define bfd_update_armap_timestamp(abfd) \ - BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd)) - -#define bfd_set_arch_mach(abfd, arch, mach)\ - BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach)) - -#define bfd_relax_section(abfd, section, link_info, again) \ - BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again)) - -#define bfd_link_hash_table_create(abfd) \ - BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) - -#define bfd_link_add_symbols(abfd, info) \ - BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) - -#define bfd_final_link(abfd, info) \ - BFD_SEND (abfd, _bfd_final_link, (abfd, info)) - -#define bfd_free_cached_info(abfd) \ - BFD_SEND (abfd, _bfd_free_cached_info, (abfd)) - -#define bfd_get_dynamic_symtab_upper_bound(abfd) \ - BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd)) - -#define bfd_print_private_bfd_data(abfd, file)\ - BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file)) - -#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \ - BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols)) - -#define bfd_get_dynamic_reloc_upper_bound(abfd) \ - BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd)) - -#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \ - BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms)) - -extern bfd_byte *bfd_get_relocated_section_contents - PARAMS ((bfd *, struct bfd_link_info *, - struct bfd_link_order *, bfd_byte *, - boolean, asymbol **)); - -@end example -@* diff --git a/contrib/binutils/bfd/elf32-mips.c b/contrib/binutils/bfd/elf32-mips.c deleted file mode 100644 index e7e1c2a7ab20f..0000000000000 --- a/contrib/binutils/bfd/elf32-mips.c +++ /dev/null @@ -1,9049 +0,0 @@ -/* MIPS-specific support for 32-bit ELF - Copyright 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. - - Most of the information added by Ian Lance Taylor, Cygnus Support, - <ian@cygnus.com>. - N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC. - <mark@codesourcery.com> - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly - different MIPS ELF from other targets. This matters when linking. - This file supports both, switching at runtime. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "bfdlink.h" -#include "genlink.h" -#include "elf-bfd.h" -#include "elf/mips.h" - -/* Get the ECOFF swapping routines. */ -#include "coff/sym.h" -#include "coff/symconst.h" -#include "coff/internal.h" -#include "coff/ecoff.h" -#include "coff/mips.h" -#define ECOFF_32 -#include "ecoffswap.h" - -/* This structure is used to hold .got information when linking. It - is stored in the tdata field of the bfd_elf_section_data structure. */ - -struct mips_got_info -{ - /* The global symbol in the GOT with the lowest index in the dynamic - symbol table. */ - struct elf_link_hash_entry *global_gotsym; - /* The number of global .got entries. */ - unsigned int global_gotno; - /* The number of local .got entries. */ - unsigned int local_gotno; - /* The number of local .got entries we have used. */ - unsigned int assigned_gotno; -}; - -/* The MIPS ELF linker needs additional information for each symbol in - the global hash table. */ - -struct mips_elf_link_hash_entry -{ - struct elf_link_hash_entry root; - - /* External symbol information. */ - EXTR esym; - - /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against - this symbol. */ - unsigned int possibly_dynamic_relocs; - - /* The index of the first dynamic relocation (in the .rel.dyn - section) against this symbol. */ - unsigned int min_dyn_reloc_index; - - /* If there is a stub that 32 bit functions should use to call this - 16 bit function, this points to the section containing the stub. */ - asection *fn_stub; - - /* Whether we need the fn_stub; this is set if this symbol appears - in any relocs other than a 16 bit call. */ - boolean need_fn_stub; - - /* If there is a stub that 16 bit functions should use to call this - 32 bit function, this points to the section containing the stub. */ - asection *call_stub; - - /* This is like the call_stub field, but it is used if the function - being called returns a floating point value. */ - asection *call_fp_stub; -}; - -static bfd_reloc_status_type mips32_64bit_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -static reloc_howto_type *mips_rtype_to_howto - PARAMS ((unsigned int)); -static void mips_info_to_howto_rel - PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); -static void mips_info_to_howto_rela - PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); -static void bfd_mips_elf32_swap_gptab_in - PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *)); -static void bfd_mips_elf32_swap_gptab_out - PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *)); -#if 0 -static void bfd_mips_elf_swap_msym_in - PARAMS ((bfd *, const Elf32_External_Msym *, Elf32_Internal_Msym *)); -#endif -static void bfd_mips_elf_swap_msym_out - PARAMS ((bfd *, const Elf32_Internal_Msym *, Elf32_External_Msym *)); -static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *)); -static boolean mips_elf_create_procedure_table - PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *, - struct ecoff_debug_info *)); -static INLINE int elf_mips_isa PARAMS ((flagword)); -static INLINE int elf_mips_mach PARAMS ((flagword)); -static INLINE char* elf_mips_abi_name PARAMS ((bfd *)); -static boolean mips_elf_is_local_label_name - PARAMS ((bfd *, const char *)); -static struct bfd_hash_entry *mips_elf_link_hash_newfunc - PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); -static int gptab_compare PARAMS ((const void *, const void *)); -static bfd_reloc_status_type mips16_jump_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static bfd_reloc_status_type mips16_gprel_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static boolean mips_elf_create_compact_rel_section - PARAMS ((bfd *, struct bfd_link_info *)); -static boolean mips_elf_create_got_section - PARAMS ((bfd *, struct bfd_link_info *)); -static bfd_reloc_status_type mips_elf_final_gp - PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *)); -static bfd_byte *elf32_mips_get_relocated_section_contents - PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, - bfd_byte *, boolean, asymbol **)); -static asection *mips_elf_create_msym_section - PARAMS ((bfd *)); -static void mips_elf_irix6_finish_dynamic_symbol - PARAMS ((bfd *, const char *, Elf_Internal_Sym *)); -static bfd_vma mips_elf_sign_extend PARAMS ((bfd_vma, int)); -static boolean mips_elf_overflow_p PARAMS ((bfd_vma, int)); -static bfd_vma mips_elf_high PARAMS ((bfd_vma)); -static bfd_vma mips_elf_higher PARAMS ((bfd_vma)); -static bfd_vma mips_elf_highest PARAMS ((bfd_vma)); -static bfd_vma mips_elf_global_got_index - PARAMS ((bfd *, struct elf_link_hash_entry *)); -static bfd_vma mips_elf_local_got_index - PARAMS ((bfd *, struct bfd_link_info *, bfd_vma)); -static bfd_vma mips_elf_got_offset_from_index - PARAMS ((bfd *, bfd *, bfd_vma)); -static boolean mips_elf_record_global_got_symbol - PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *, - struct mips_got_info *)); -static bfd_vma mips_elf_got_page - PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, bfd_vma *)); -static const Elf_Internal_Rela *mips_elf_next_relocation - PARAMS ((unsigned int, const Elf_Internal_Rela *, - const Elf_Internal_Rela *)); -static bfd_reloc_status_type mips_elf_calculate_relocation - PARAMS ((bfd *, bfd *, asection *, struct bfd_link_info *, - const Elf_Internal_Rela *, bfd_vma, reloc_howto_type *, - Elf_Internal_Sym *, asection **, bfd_vma *, const char **, - boolean *)); -static bfd_vma mips_elf_obtain_contents - PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *)); -static boolean mips_elf_perform_relocation - PARAMS ((struct bfd_link_info *, reloc_howto_type *, - const Elf_Internal_Rela *, bfd_vma, - bfd *, asection *, bfd_byte *, boolean)); -static boolean mips_elf_assign_gp PARAMS ((bfd *, bfd_vma *)); -static boolean mips_elf_sort_hash_table_f - PARAMS ((struct mips_elf_link_hash_entry *, PTR)); -static boolean mips_elf_sort_hash_table - PARAMS ((struct bfd_link_info *, unsigned long)); -static asection * mips_elf_got_section PARAMS ((bfd *)); -static struct mips_got_info *mips_elf_got_info - PARAMS ((bfd *, asection **)); -static boolean mips_elf_local_relocation_p - PARAMS ((bfd *, const Elf_Internal_Rela *, asection **)); -static bfd_vma mips_elf_create_local_got_entry - PARAMS ((bfd *, struct mips_got_info *, asection *, bfd_vma)); -static bfd_vma mips_elf_got16_entry - PARAMS ((bfd *, struct bfd_link_info *, bfd_vma)); -static boolean mips_elf_create_dynamic_relocation - PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *, - struct mips_elf_link_hash_entry *, asection *, - bfd_vma, bfd_vma *, asection *)); -static void mips_elf_allocate_dynamic_relocations - PARAMS ((bfd *, unsigned int)); -static boolean mips_elf_stub_section_p - PARAMS ((bfd *, asection *)); - -/* The level of IRIX compatibility we're striving for. */ - -typedef enum { - ict_none, - ict_irix5, - ict_irix6 -} irix_compat_t; - -/* Nonzero if ABFD is using the N32 ABI. */ - -#define ABI_N32_P(abfd) \ - ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0) - -/* Nonzero if ABFD is using the 64-bit ABI. FIXME: This is never - true, yet. */ -#define ABI_64_P(abfd) \ - ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0) - -/* What version of Irix we are trying to be compatible with. FIXME: - At the moment, we never generate "normal" MIPS ELF ABI executables; - we always use some version of Irix. */ - -#define IRIX_COMPAT(abfd) \ - ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5) - -/* Whether we are trying to be compatible with IRIX at all. */ - -#define SGI_COMPAT(abfd) \ - (IRIX_COMPAT (abfd) != ict_none) - -/* The name of the msym section. */ -#define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym" - -/* The name of the srdata section. */ -#define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata" - -/* The name of the options section. */ -#define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \ - (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options") - -/* The name of the stub section. */ -#define MIPS_ELF_STUB_SECTION_NAME(abfd) \ - (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub") - -/* The name of the dynamic relocation section. */ -#define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn" - -/* The size of an external REL relocation. */ -#define MIPS_ELF_REL_SIZE(abfd) \ - (get_elf_backend_data (abfd)->s->sizeof_rel) - -/* The size of an external dynamic table entry. */ -#define MIPS_ELF_DYN_SIZE(abfd) \ - (get_elf_backend_data (abfd)->s->sizeof_dyn) - -/* The size of a GOT entry. */ -#define MIPS_ELF_GOT_SIZE(abfd) \ - (get_elf_backend_data (abfd)->s->arch_size / 8) - -/* The size of a symbol-table entry. */ -#define MIPS_ELF_SYM_SIZE(abfd) \ - (get_elf_backend_data (abfd)->s->sizeof_sym) - -/* The default alignment for sections, as a power of two. */ -#define MIPS_ELF_LOG_FILE_ALIGN(abfd) \ - (get_elf_backend_data (abfd)->s->file_align == 8 ? 3 : 2) - -/* Get word-sized data. */ -#define MIPS_ELF_GET_WORD(abfd, ptr) \ - (ABI_64_P (abfd) ? bfd_get_64 (abfd, ptr) : bfd_get_32 (abfd, ptr)) - -/* Put out word-sized data. */ -#define MIPS_ELF_PUT_WORD(abfd, val, ptr) \ - (ABI_64_P (abfd) \ - ? bfd_put_64 (abfd, val, ptr) \ - : bfd_put_32 (abfd, val, ptr)) - -/* Add a dynamic symbol table-entry. */ -#ifdef BFD64 -#define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ - (ABI_64_P (elf_hash_table (info)->dynobj) \ - ? bfd_elf64_add_dynamic_entry (info, tag, val) \ - : bfd_elf32_add_dynamic_entry (info, tag, val)) -#else -#define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ - (ABI_64_P (elf_hash_table (info)->dynobj) \ - ? (abort (), false) \ - : bfd_elf32_add_dynamic_entry (info, tag, val)) -#endif - -/* The number of local .got entries we reserve. */ -#define MIPS_RESERVED_GOTNO (2) - -/* Instructions which appear in a stub. For some reason the stub is - slightly different on an SGI system. */ -#define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000) -#define STUB_LW(abfd) \ - (SGI_COMPAT (abfd) \ - ? (ABI_64_P (abfd) \ - ? 0xdf998010 /* ld t9,0x8010(gp) */ \ - : 0x8f998010) /* lw t9,0x8010(gp) */ \ - : 0x8f998000) /* lw t9,0x8000(gp) */ -#define STUB_MOVE 0x03e07825 /* move t7,ra */ -#define STUB_JALR 0x0320f809 /* jal t9 */ -#define STUB_LI16 0x34180000 /* ori t8,zero,0 */ -#define MIPS_FUNCTION_STUB_SIZE (16) - -#if 0 -/* We no longer try to identify particular sections for the .dynsym - section. When we do, we wind up crashing if there are other random - sections with relocations. */ - -/* Names of sections which appear in the .dynsym section in an Irix 5 - executable. */ - -static const char * const mips_elf_dynsym_sec_names[] = -{ - ".text", - ".init", - ".fini", - ".data", - ".rodata", - ".sdata", - ".sbss", - ".bss", - NULL -}; - -#define SIZEOF_MIPS_DYNSYM_SECNAMES \ - (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0]) - -/* The number of entries in mips_elf_dynsym_sec_names which go in the - text segment. */ - -#define MIPS_TEXT_DYNSYM_SECNO (3) - -#endif /* 0 */ - -/* The names of the runtime procedure table symbols used on Irix 5. */ - -static const char * const mips_elf_dynsym_rtproc_names[] = -{ - "_procedure_table", - "_procedure_string_table", - "_procedure_table_size", - NULL -}; - -/* These structures are used to generate the .compact_rel section on - Irix 5. */ - -typedef struct -{ - unsigned long id1; /* Always one? */ - unsigned long num; /* Number of compact relocation entries. */ - unsigned long id2; /* Always two? */ - unsigned long offset; /* The file offset of the first relocation. */ - unsigned long reserved0; /* Zero? */ - unsigned long reserved1; /* Zero? */ -} Elf32_compact_rel; - -typedef struct -{ - bfd_byte id1[4]; - bfd_byte num[4]; - bfd_byte id2[4]; - bfd_byte offset[4]; - bfd_byte reserved0[4]; - bfd_byte reserved1[4]; -} Elf32_External_compact_rel; - -typedef struct -{ - unsigned int ctype : 1; /* 1: long 0: short format. See below. */ - unsigned int rtype : 4; /* Relocation types. See below. */ - unsigned int dist2to : 8; - unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ - unsigned long konst; /* KONST field. See below. */ - unsigned long vaddr; /* VADDR to be relocated. */ -} Elf32_crinfo; - -typedef struct -{ - unsigned int ctype : 1; /* 1: long 0: short format. See below. */ - unsigned int rtype : 4; /* Relocation types. See below. */ - unsigned int dist2to : 8; - unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ - unsigned long konst; /* KONST field. See below. */ -} Elf32_crinfo2; - -typedef struct -{ - bfd_byte info[4]; - bfd_byte konst[4]; - bfd_byte vaddr[4]; -} Elf32_External_crinfo; - -typedef struct -{ - bfd_byte info[4]; - bfd_byte konst[4]; -} Elf32_External_crinfo2; - -/* These are the constants used to swap the bitfields in a crinfo. */ - -#define CRINFO_CTYPE (0x1) -#define CRINFO_CTYPE_SH (31) -#define CRINFO_RTYPE (0xf) -#define CRINFO_RTYPE_SH (27) -#define CRINFO_DIST2TO (0xff) -#define CRINFO_DIST2TO_SH (19) -#define CRINFO_RELVADDR (0x7ffff) -#define CRINFO_RELVADDR_SH (0) - -/* A compact relocation info has long (3 words) or short (2 words) - formats. A short format doesn't have VADDR field and relvaddr - fields contains ((VADDR - vaddr of the previous entry) >> 2). */ -#define CRF_MIPS_LONG 1 -#define CRF_MIPS_SHORT 0 - -/* There are 4 types of compact relocation at least. The value KONST - has different meaning for each type: - - (type) (konst) - CT_MIPS_REL32 Address in data - CT_MIPS_WORD Address in word (XXX) - CT_MIPS_GPHI_LO GP - vaddr - CT_MIPS_JMPAD Address to jump - */ - -#define CRT_MIPS_REL32 0xa -#define CRT_MIPS_WORD 0xb -#define CRT_MIPS_GPHI_LO 0xc -#define CRT_MIPS_JMPAD 0xd - -#define mips_elf_set_cr_format(x,format) ((x).ctype = (format)) -#define mips_elf_set_cr_type(x,type) ((x).rtype = (type)) -#define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v)) -#define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2) - -static void bfd_elf32_swap_compact_rel_out - PARAMS ((bfd *, const Elf32_compact_rel *, Elf32_External_compact_rel *)); -static void bfd_elf32_swap_crinfo_out - PARAMS ((bfd *, const Elf32_crinfo *, Elf32_External_crinfo *)); - -#define USE_REL 1 /* MIPS uses REL relocations instead of RELA */ - -/* In case we're on a 32-bit machine, construct a 64-bit "-1" value - from smaller values. Start with zero, widen, *then* decrement. */ -#define MINUS_ONE (((bfd_vma)0) - 1) - -static reloc_howto_type elf_mips_howto_table[] = -{ - /* No relocation. */ - HOWTO (R_MIPS_NONE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit relocation. */ - HOWTO (R_MIPS_16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit relocation. */ - HOWTO (R_MIPS_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit symbol relative relocation. */ - HOWTO (R_MIPS_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_REL32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 26 bit branch address. */ - HOWTO (R_MIPS_26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_26", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of symbol value. */ - HOWTO (R_MIPS_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_hi16_reloc, /* special_function */ - "R_MIPS_HI16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of symbol value. */ - HOWTO (R_MIPS_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_lo16_reloc, /* special_function */ - "R_MIPS_LO16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* GP relative reference. */ - HOWTO (R_MIPS_GPREL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_GPREL16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to literal section. */ - HOWTO (R_MIPS_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_LITERAL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to global offset table. */ - HOWTO (R_MIPS_GOT16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_got16_reloc, /* special_function */ - "R_MIPS_GOT16", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit PC relative reference. */ - HOWTO (R_MIPS_PC16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PC16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 16 bit call through global offset table. */ - HOWTO (R_MIPS_CALL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL16", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit GP relative reference. */ - HOWTO (R_MIPS_GPREL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - _bfd_mips_elf_gprel32_reloc, /* special_function */ - "R_MIPS_GPREL32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The remaining relocs are defined on Irix 5, although they are - not defined by the ABI. */ - EMPTY_HOWTO (13), - EMPTY_HOWTO (14), - EMPTY_HOWTO (15), - - /* A 5 bit shift field. */ - HOWTO (R_MIPS_SHIFT5, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 5, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT5", /* name */ - true, /* partial_inplace */ - 0x000007c0, /* src_mask */ - 0x000007c0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 6 bit shift field. */ - /* FIXME: This is not handled correctly; a special function is - needed to put the most significant bit in the right place. */ - HOWTO (R_MIPS_SHIFT6, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 6, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT6", /* name */ - true, /* partial_inplace */ - 0x000007c4, /* src_mask */ - 0x000007c4, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 64 bit relocation. */ - HOWTO (R_MIPS_64, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - mips32_64bit_reloc, /* special_function */ - "R_MIPS_64", /* name */ - true, /* partial_inplace */ - MINUS_ONE, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement in the global offset table. */ - HOWTO (R_MIPS_GOT_DISP, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_DISP", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement to page pointer in the global offset table. */ - HOWTO (R_MIPS_GOT_PAGE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_PAGE", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Offset from page pointer in the global offset table. */ - HOWTO (R_MIPS_GOT_OFST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_OFST", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - HOWTO (R_MIPS_GOT_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_HI16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - HOWTO (R_MIPS_GOT_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_LO16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 64 bit subtraction. Used in the N32 ABI. */ - HOWTO (R_MIPS_SUB, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SUB", /* name */ - true, /* partial_inplace */ - MINUS_ONE, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Used to cause the linker to insert and delete instructions? */ - EMPTY_HOWTO (R_MIPS_INSERT_A), - EMPTY_HOWTO (R_MIPS_INSERT_B), - EMPTY_HOWTO (R_MIPS_DELETE), - - /* Get the higher value of a 64 bit addend. */ - HOWTO (R_MIPS_HIGHER, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHER", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Get the highest value of a 64 bit addend. */ - HOWTO (R_MIPS_HIGHEST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHEST", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - HOWTO (R_MIPS_CALL_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_HI16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - HOWTO (R_MIPS_CALL_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_LO16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Section displacement. */ - HOWTO (R_MIPS_SCN_DISP, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SCN_DISP", /* name */ - false, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - EMPTY_HOWTO (R_MIPS_REL16), - EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), - EMPTY_HOWTO (R_MIPS_PJUMP), - EMPTY_HOWTO (R_MIPS_RELGOT), - - /* Protected jump conversion. This is an optimization hint. No - relocation is required for correctness. */ - HOWTO (R_MIPS_JALR, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_JALR", /* name */ - false, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0x00000000, /* dst_mask */ - false), /* pcrel_offset */ -}; - -/* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This - is a hack to make the linker think that we need 64 bit values. */ -static reloc_howto_type elf_mips_ctor64_howto = - HOWTO (R_MIPS_64, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - mips32_64bit_reloc, /* special_function */ - "R_MIPS_64", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false); /* pcrel_offset */ - -/* The reloc used for the mips16 jump instruction. */ -static reloc_howto_type elf_mips16_jump_howto = - HOWTO (R_MIPS16_26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - mips16_jump_reloc, /* special_function */ - "R_MIPS16_26", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false); /* pcrel_offset */ - -/* The reloc used for the mips16 gprel instruction. */ -static reloc_howto_type elf_mips16_gprel_howto = - HOWTO (R_MIPS16_GPREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - mips16_gprel_reloc, /* special_function */ - "R_MIPS16_GPREL", /* name */ - true, /* partial_inplace */ - 0x07ff001f, /* src_mask */ - 0x07ff001f, /* dst_mask */ - false); /* pcrel_offset */ - - -/* GNU extensions for embedded-pic. */ -/* High 16 bits of symbol value, pc-relative. */ -static reloc_howto_type elf_mips_gnu_rel_hi16 = - HOWTO (R_MIPS_GNU_REL_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_hi16_reloc, /* special_function */ - "R_MIPS_GNU_REL_HI16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true); /* pcrel_offset */ - -/* Low 16 bits of symbol value, pc-relative. */ -static reloc_howto_type elf_mips_gnu_rel_lo16 = - HOWTO (R_MIPS_GNU_REL_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_lo16_reloc, /* special_function */ - "R_MIPS_GNU_REL_LO16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true); /* pcrel_offset */ - -/* 16 bit offset for pc-relative branches. */ -static reloc_howto_type elf_mips_gnu_rel16_s2 = - HOWTO (R_MIPS_GNU_REL16_S2, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GNU_REL16_S2", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - true); /* pcrel_offset */ - -/* 64 bit pc-relative. */ -static reloc_howto_type elf_mips_gnu_pcrel64 = - HOWTO (R_MIPS_PC64, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PC64", /* name */ - true, /* partial_inplace */ - MINUS_ONE, /* src_mask */ - MINUS_ONE, /* dst_mask */ - true); /* pcrel_offset */ - -/* 32 bit pc-relative. */ -static reloc_howto_type elf_mips_gnu_pcrel32 = - HOWTO (R_MIPS_PC32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PC32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - true); /* pcrel_offset */ - -/* GNU extension to record C++ vtable hierarchy */ -static reloc_howto_type elf_mips_gnu_vtinherit_howto = - HOWTO (R_MIPS_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_MIPS_GNU_VTINHERIT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false); /* pcrel_offset */ - -/* GNU extension to record C++ vtable member usage */ -static reloc_howto_type elf_mips_gnu_vtentry_howto = - HOWTO (R_MIPS_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_elf_rel_vtable_reloc_fn, /* special_function */ - "R_MIPS_GNU_VTENTRY", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false); /* pcrel_offset */ - -/* Do a R_MIPS_HI16 relocation. This has to be done in combination - with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to - the HI16. Here we just save the information we need; we do the - actual relocation when we see the LO16. MIPS ELF requires that the - LO16 immediately follow the HI16. As a GNU extension, we permit an - arbitrary number of HI16 relocs to be associated with a single LO16 - reloc. This extension permits gcc to output the HI and LO relocs - itself. */ - -struct mips_hi16 -{ - struct mips_hi16 *next; - bfd_byte *addr; - bfd_vma addend; -}; - -/* FIXME: This should not be a static variable. */ - -static struct mips_hi16 *mips_hi16_list; - -bfd_reloc_status_type -_bfd_mips_elf_hi16_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - bfd_reloc_status_type ret; - bfd_vma relocation; - struct mips_hi16 *n; - - /* If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - ret = bfd_reloc_ok; - - if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) - { - boolean relocateable; - bfd_vma gp; - - if (ret == bfd_reloc_undefined) - abort (); - - if (output_bfd != NULL) - relocateable = true; - else - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - } - - ret = mips_elf_final_gp (output_bfd, symbol, relocateable, - error_message, &gp); - if (ret != bfd_reloc_ok) - return ret; - - relocation = gp - reloc_entry->address; - } - else - { - if (bfd_is_und_section (symbol->section) - && output_bfd == (bfd *) NULL) - ret = bfd_reloc_undefined; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - } - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - /* Save the information, and let LO16 do the actual relocation. */ - n = (struct mips_hi16 *) bfd_malloc (sizeof *n); - if (n == NULL) - return bfd_reloc_outofrange; - n->addr = (bfd_byte *) data + reloc_entry->address; - n->addend = relocation; - n->next = mips_hi16_list; - mips_hi16_list = n; - - if (output_bfd != (bfd *) NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit - inplace relocation; this function exists in order to do the - R_MIPS_HI16 relocation described above. */ - -bfd_reloc_status_type -_bfd_mips_elf_lo16_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - arelent gp_disp_relent; - - if (mips_hi16_list != NULL) - { - struct mips_hi16 *l; - - l = mips_hi16_list; - while (l != NULL) - { - unsigned long insn; - unsigned long val; - unsigned long vallo; - struct mips_hi16 *next; - - /* Do the HI16 relocation. Note that we actually don't need - to know anything about the LO16 itself, except where to - find the low 16 bits of the addend needed by the LO16. */ - insn = bfd_get_32 (abfd, l->addr); - vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff); - val = ((insn & 0xffff) << 16) + vallo; - val += l->addend; - - /* The low order 16 bits are always treated as a signed - value. Therefore, a negative value in the low order bits - requires an adjustment in the high order bits. We need - to make this adjustment in two ways: once for the bits we - took from the data, and once for the bits we are putting - back in to the data. */ - if ((vallo & 0x8000) != 0) - val -= 0x10000; - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (abfd, insn, l->addr); - - if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) - { - gp_disp_relent = *reloc_entry; - reloc_entry = &gp_disp_relent; - reloc_entry->addend = l->addend; - } - - next = l->next; - free (l); - l = next; - } - - mips_hi16_list = NULL; - } - else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) - { - bfd_reloc_status_type ret; - bfd_vma gp, relocation; - - /* FIXME: Does this case ever occur? */ - - ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp); - if (ret != bfd_reloc_ok) - return ret; - - relocation = gp - reloc_entry->address; - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - gp_disp_relent = *reloc_entry; - reloc_entry = &gp_disp_relent; - reloc_entry->addend = relocation - 4; - } - - /* Now do the LO16 reloc in the usual way. */ - return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - -/* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset - table used for PIC code. If the symbol is an external symbol, the - instruction is modified to contain the offset of the appropriate - entry in the global offset table. If the symbol is a section - symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit - addends are combined to form the real addend against the section - symbol; the GOT16 is modified to contain the offset of an entry in - the global offset table, and the LO16 is modified to offset it - appropriately. Thus an offset larger than 16 bits requires a - modified value in the global offset table. - - This implementation suffices for the assembler, but the linker does - not yet know how to create global offset tables. */ - -bfd_reloc_status_type -_bfd_mips_elf_got16_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - /* If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* If we're relocating, and this is a local symbol, we can handle it - just like HI16. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) != 0) - return _bfd_mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); - - abort (); -} - -/* Set the GP value for OUTPUT_BFD. Returns false if this is a - dangerous relocation. */ - -static boolean -mips_elf_assign_gp (output_bfd, pgp) - bfd *output_bfd; - bfd_vma *pgp; -{ - unsigned int count; - asymbol **sym; - unsigned int i; - - /* If we've already figured out what GP will be, just return it. */ - *pgp = _bfd_get_gp_value (output_bfd); - if (*pgp) - return true; - - count = bfd_get_symcount (output_bfd); - sym = bfd_get_outsymbols (output_bfd); - - /* The linker script will have created a symbol named `_gp' with the - appropriate value. */ - if (sym == (asymbol **) NULL) - i = count; - else - { - for (i = 0; i < count; i++, sym++) - { - register CONST char *name; - - name = bfd_asymbol_name (*sym); - if (*name == '_' && strcmp (name, "_gp") == 0) - { - *pgp = bfd_asymbol_value (*sym); - _bfd_set_gp_value (output_bfd, *pgp); - break; - } - } - } - - if (i >= count) - { - /* Only get the error once. */ - *pgp = 4; - _bfd_set_gp_value (output_bfd, *pgp); - return false; - } - - return true; -} - -/* We have to figure out the gp value, so that we can adjust the - symbol value correctly. We look up the symbol _gp in the output - BFD. If we can't find it, we're stuck. We cache it in the ELF - target data. We don't need to adjust the symbol value for an - external symbol if we are producing relocateable output. */ - -static bfd_reloc_status_type -mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp) - bfd *output_bfd; - asymbol *symbol; - boolean relocateable; - char **error_message; - bfd_vma *pgp; -{ - if (bfd_is_und_section (symbol->section) - && ! relocateable) - { - *pgp = 0; - return bfd_reloc_undefined; - } - - *pgp = _bfd_get_gp_value (output_bfd); - if (*pgp == 0 - && (! relocateable - || (symbol->flags & BSF_SECTION_SYM) != 0)) - { - if (relocateable) - { - /* Make up a value. */ - *pgp = symbol->section->output_section->vma + 0x4000; - _bfd_set_gp_value (output_bfd, *pgp); - } - else if (!mips_elf_assign_gp (output_bfd, pgp)) - { - *error_message = - (char *) _("GP relative relocation when _gp not defined"); - return bfd_reloc_dangerous; - } - } - - return bfd_reloc_ok; -} - -/* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must - become the offset from the gp register. This function also handles - R_MIPS_LITERAL relocations, although those can be handled more - cleverly because the entries in the .lit8 and .lit4 sections can be - merged. */ - -static bfd_reloc_status_type gprel16_with_gp PARAMS ((bfd *, asymbol *, - arelent *, asection *, - boolean, PTR, bfd_vma)); - -bfd_reloc_status_type -_bfd_mips_elf_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - boolean relocateable; - bfd_reloc_status_type ret; - bfd_vma gp; - - /* If we're relocating, and this is an external symbol with no - addend, we don't want to change anything. We will only have an - addend if this is a newly created reloc, not read from an ELF - file. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != (bfd *) NULL) - relocateable = true; - else - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - } - - ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, - &gp); - if (ret != bfd_reloc_ok) - return ret; - - return gprel16_with_gp (abfd, symbol, reloc_entry, input_section, - relocateable, data, gp); -} - -static bfd_reloc_status_type -gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, - gp) - bfd *abfd; - asymbol *symbol; - arelent *reloc_entry; - asection *input_section; - boolean relocateable; - PTR data; - bfd_vma gp; -{ - bfd_vma relocation; - unsigned long insn; - unsigned long val; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - - /* Set val to the offset into the section or symbol. */ - if (reloc_entry->howto->src_mask == 0) - { - /* This case occurs with the 64-bit MIPS ELF ABI. */ - val = reloc_entry->addend; - } - else - { - val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; - if (val & 0x8000) - val -= 0x10000; - } - - /* Adjust val for the final section location and GP value. If we - are producing relocateable output, we don't want to do this for - an external symbol. */ - if (! relocateable - || (symbol->flags & BSF_SECTION_SYM) != 0) - val += relocation - gp; - - insn = (insn &~ 0xffff) | (val & 0xffff); - bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); - - if (relocateable) - reloc_entry->address += input_section->output_offset; - - /* Make sure it fit in 16 bits. */ - if (val >= 0x8000 && val < 0xffff8000) - return bfd_reloc_overflow; - - return bfd_reloc_ok; -} - -/* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset - from the gp register? XXX */ - -static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *, - arelent *, asection *, - boolean, PTR, bfd_vma)); - -bfd_reloc_status_type -_bfd_mips_elf_gprel32_reloc (abfd, - reloc_entry, - symbol, - data, - input_section, - output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - boolean relocateable; - bfd_reloc_status_type ret; - bfd_vma gp; - - /* If we're relocating, and this is an external symbol with no - addend, we don't want to change anything. We will only have an - addend if this is a newly created reloc, not read from an ELF - file. */ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - *error_message = (char *) - _("32bits gp relative relocation occurs for an external symbol"); - return bfd_reloc_outofrange; - } - - if (output_bfd != (bfd *) NULL) - { - relocateable = true; - gp = _bfd_get_gp_value (output_bfd); - } - else - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - - ret = mips_elf_final_gp (output_bfd, symbol, relocateable, - error_message, &gp); - if (ret != bfd_reloc_ok) - return ret; - } - - return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, - relocateable, data, gp); -} - -static bfd_reloc_status_type -gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, - gp) - bfd *abfd; - asymbol *symbol; - arelent *reloc_entry; - asection *input_section; - boolean relocateable; - PTR data; - bfd_vma gp; -{ - bfd_vma relocation; - unsigned long val; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - if (reloc_entry->howto->src_mask == 0) - { - /* This case arises with the 64-bit MIPS ELF ABI. */ - val = 0; - } - else - val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - - /* Set val to the offset into the section or symbol. */ - val += reloc_entry->addend; - - /* Adjust val for the final section location and GP value. If we - are producing relocateable output, we don't want to do this for - an external symbol. */ - if (! relocateable - || (symbol->flags & BSF_SECTION_SYM) != 0) - val += relocation - gp; - - bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); - - if (relocateable) - reloc_entry->address += input_section->output_offset; - - return bfd_reloc_ok; -} - -/* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are - generated when addreses are 64 bits. The upper 32 bits are a simle - sign extension. */ - -static bfd_reloc_status_type -mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - bfd_reloc_status_type r; - arelent reloc32; - unsigned long val; - bfd_size_type addr; - - r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); - if (r != bfd_reloc_continue) - return r; - - /* Do a normal 32 bit relocation on the lower 32 bits. */ - reloc32 = *reloc_entry; - if (bfd_big_endian (abfd)) - reloc32.address += 4; - reloc32.howto = &elf_mips_howto_table[R_MIPS_32]; - r = bfd_perform_relocation (abfd, &reloc32, data, input_section, - output_bfd, error_message); - - /* Sign extend into the upper 32 bits. */ - val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address); - if ((val & 0x80000000) != 0) - val = 0xffffffff; - else - val = 0; - addr = reloc_entry->address; - if (bfd_little_endian (abfd)) - addr += 4; - bfd_put_32 (abfd, val, (bfd_byte *) data + addr); - - return r; -} - -/* Handle a mips16 jump. */ - -static bfd_reloc_status_type -mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data ATTRIBUTE_UNUSED; - asection *input_section; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - if (output_bfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* FIXME. */ - { - static boolean warned; - - if (! warned) - (*_bfd_error_handler) - (_("Linking mips16 objects into %s format is not supported"), - bfd_get_target (input_section->output_section->owner)); - warned = true; - } - - return bfd_reloc_undefined; -} - -/* Handle a mips16 GP relative reloc. */ - -static bfd_reloc_status_type -mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - boolean relocateable; - bfd_reloc_status_type ret; - bfd_vma gp; - unsigned short extend, insn; - unsigned long final; - - /* If we're relocating, and this is an external symbol with no - addend, we don't want to change anything. We will only have an - addend if this is a newly created reloc, not read from an ELF - file. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - relocateable = true; - else - { - relocateable = false; - output_bfd = symbol->section->output_section->owner; - } - - ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, - &gp); - if (ret != bfd_reloc_ok) - return ret; - - if (reloc_entry->address > input_section->_cooked_size) - return bfd_reloc_outofrange; - - /* Pick up the mips16 extend instruction and the real instruction. */ - extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); - insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2); - - /* Stuff the current addend back as a 32 bit value, do the usual - relocation, and then clean up. */ - bfd_put_32 (abfd, - (((extend & 0x1f) << 11) - | (extend & 0x7e0) - | (insn & 0x1f)), - (bfd_byte *) data + reloc_entry->address); - - ret = gprel16_with_gp (abfd, symbol, reloc_entry, input_section, - relocateable, data, gp); - - final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); - bfd_put_16 (abfd, - ((extend & 0xf800) - | ((final >> 11) & 0x1f) - | (final & 0x7e0)), - (bfd_byte *) data + reloc_entry->address); - bfd_put_16 (abfd, - ((insn & 0xffe0) - | (final & 0x1f)), - (bfd_byte *) data + reloc_entry->address + 2); - - return ret; -} - -/* Return the ISA for a MIPS e_flags value. */ - -static INLINE int -elf_mips_isa (flags) - flagword flags; -{ - switch (flags & EF_MIPS_ARCH) - { - case E_MIPS_ARCH_1: - return 1; - case E_MIPS_ARCH_2: - return 2; - case E_MIPS_ARCH_3: - return 3; - case E_MIPS_ARCH_4: - return 4; - } - return 4; -} - -/* Return the MACH for a MIPS e_flags value. */ - -static INLINE int -elf_mips_mach (flags) - flagword flags; -{ - switch (flags & EF_MIPS_MACH) - { - case E_MIPS_MACH_3900: - return bfd_mach_mips3900; - - case E_MIPS_MACH_4010: - return bfd_mach_mips4010; - - case E_MIPS_MACH_4100: - return bfd_mach_mips4100; - - case E_MIPS_MACH_4111: - return bfd_mach_mips4111; - - case E_MIPS_MACH_4650: - return bfd_mach_mips4650; - - default: - switch (flags & EF_MIPS_ARCH) - { - default: - case E_MIPS_ARCH_1: - return bfd_mach_mips3000; - break; - - case E_MIPS_ARCH_2: - return bfd_mach_mips6000; - break; - - case E_MIPS_ARCH_3: - return bfd_mach_mips4000; - break; - - case E_MIPS_ARCH_4: - return bfd_mach_mips8000; - break; - } - } - - return 0; -} - -/* Return printable name for ABI. */ - -static INLINE char* -elf_mips_abi_name (abfd) - bfd *abfd; -{ - flagword flags; - - if (ABI_N32_P (abfd)) - return "N32"; - else if (ABI_64_P (abfd)) - return "64"; - - flags = elf_elfheader (abfd)->e_flags; - switch (flags & EF_MIPS_ABI) - { - case 0: - return "none"; - case E_MIPS_ABI_O32: - return "O32"; - case E_MIPS_ABI_O64: - return "O64"; - case E_MIPS_ABI_EABI32: - return "EABI32"; - case E_MIPS_ABI_EABI64: - return "EABI64"; - default: - return "unknown abi"; - } -} - -/* A mapping from BFD reloc types to MIPS ELF reloc types. */ - -struct elf_reloc_map { - bfd_reloc_code_real_type bfd_reloc_val; - enum elf_mips_reloc_type elf_reloc_val; -}; - -static CONST struct elf_reloc_map mips_reloc_map[] = -{ - { BFD_RELOC_NONE, R_MIPS_NONE, }, - { BFD_RELOC_16, R_MIPS_16 }, - { BFD_RELOC_32, R_MIPS_32 }, - { BFD_RELOC_64, R_MIPS_64 }, - { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, - { BFD_RELOC_HI16_S, R_MIPS_HI16 }, - { BFD_RELOC_LO16, R_MIPS_LO16 }, - { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, - { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, - { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, - { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, - { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, - { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, - { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, - { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, - { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, - { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, - { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, - { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, - { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, - { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP } -}; - -/* Given a BFD reloc type, return a howto structure. */ - -static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ - unsigned int i; - - for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) - { - if (mips_reloc_map[i].bfd_reloc_val == code) - return &elf_mips_howto_table[(int) mips_reloc_map[i].elf_reloc_val]; - } - - switch (code) - { - default: - bfd_set_error (bfd_error_bad_value); - return NULL; - - case BFD_RELOC_CTOR: - /* We need to handle BFD_RELOC_CTOR specially. - Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the - size of addresses on this architecture. */ - if (bfd_arch_bits_per_address (abfd) == 32) - return &elf_mips_howto_table[(int) R_MIPS_32]; - else - return &elf_mips_ctor64_howto; - - case BFD_RELOC_MIPS16_JMP: - return &elf_mips16_jump_howto; - case BFD_RELOC_MIPS16_GPREL: - return &elf_mips16_gprel_howto; - case BFD_RELOC_VTABLE_INHERIT: - return &elf_mips_gnu_vtinherit_howto; - case BFD_RELOC_VTABLE_ENTRY: - return &elf_mips_gnu_vtentry_howto; - case BFD_RELOC_PCREL_HI16_S: - return &elf_mips_gnu_rel_hi16; - case BFD_RELOC_PCREL_LO16: - return &elf_mips_gnu_rel_lo16; - case BFD_RELOC_16_PCREL_S2: - return &elf_mips_gnu_rel16_s2; - case BFD_RELOC_64_PCREL: - return &elf_mips_gnu_pcrel64; - case BFD_RELOC_32_PCREL: - return &elf_mips_gnu_pcrel32; - } -} - -/* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ - -static reloc_howto_type * -mips_rtype_to_howto (r_type) - unsigned int r_type; -{ - switch (r_type) - { - case R_MIPS16_26: - return &elf_mips16_jump_howto; - break; - case R_MIPS16_GPREL: - return &elf_mips16_gprel_howto; - break; - case R_MIPS_GNU_VTINHERIT: - return &elf_mips_gnu_vtinherit_howto; - break; - case R_MIPS_GNU_VTENTRY: - return &elf_mips_gnu_vtentry_howto; - break; - case R_MIPS_GNU_REL_HI16: - return &elf_mips_gnu_rel_hi16; - break; - case R_MIPS_GNU_REL_LO16: - return &elf_mips_gnu_rel_lo16; - break; - case R_MIPS_GNU_REL16_S2: - return &elf_mips_gnu_rel16_s2; - break; - case R_MIPS_PC64: - return &elf_mips_gnu_pcrel64; - break; - case R_MIPS_PC32: - return &elf_mips_gnu_pcrel32; - break; - - default: - BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); - return &elf_mips_howto_table[r_type]; - break; - } -} - -/* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ - -static void -mips_info_to_howto_rel (abfd, cache_ptr, dst) - bfd *abfd; - arelent *cache_ptr; - Elf32_Internal_Rel *dst; -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - cache_ptr->howto = mips_rtype_to_howto (r_type); - - /* The addend for a GPREL16 or LITERAL relocation comes from the GP - value for the object file. We get the addend now, rather than - when we do the relocation, because the symbol manipulations done - by the linker may cause us to lose track of the input BFD. */ - if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 - && (r_type == (unsigned int) R_MIPS_GPREL16 - || r_type == (unsigned int) R_MIPS_LITERAL)) - cache_ptr->addend = elf_gp (abfd); -} - -/* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */ - -static void -mips_info_to_howto_rela (abfd, cache_ptr, dst) - bfd *abfd; - arelent *cache_ptr; - Elf32_Internal_Rela *dst; -{ - /* Since an Elf32_Internal_Rel is an initial prefix of an - Elf32_Internal_Rela, we can just use mips_info_to_howto_rel - above. */ - mips_info_to_howto_rel (abfd, cache_ptr, (Elf32_Internal_Rel *) dst); - - /* If we ever need to do any extra processing with dst->r_addend - (the field omitted in an Elf32_Internal_Rel) we can do it here. */ -} - -/* A .reginfo section holds a single Elf32_RegInfo structure. These - routines swap this structure in and out. They are used outside of - BFD, so they are globally visible. */ - -void -bfd_mips_elf32_swap_reginfo_in (abfd, ex, in) - bfd *abfd; - const Elf32_External_RegInfo *ex; - Elf32_RegInfo *in; -{ - in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); - in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); - in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); - in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); - in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); - in->ri_gp_value = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gp_value); -} - -void -bfd_mips_elf32_swap_reginfo_out (abfd, in, ex) - bfd *abfd; - const Elf32_RegInfo *in; - Elf32_External_RegInfo *ex; -{ - bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, - (bfd_byte *) ex->ri_gprmask); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], - (bfd_byte *) ex->ri_cprmask[0]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], - (bfd_byte *) ex->ri_cprmask[1]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], - (bfd_byte *) ex->ri_cprmask[2]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], - (bfd_byte *) ex->ri_cprmask[3]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_gp_value, - (bfd_byte *) ex->ri_gp_value); -} - -/* In the 64 bit ABI, the .MIPS.options section holds register - information in an Elf64_Reginfo structure. These routines swap - them in and out. They are globally visible because they are used - outside of BFD. These routines are here so that gas can call them - without worrying about whether the 64 bit ABI has been included. */ - -void -bfd_mips_elf64_swap_reginfo_in (abfd, ex, in) - bfd *abfd; - const Elf64_External_RegInfo *ex; - Elf64_Internal_RegInfo *in; -{ - in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); - in->ri_pad = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_pad); - in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); - in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); - in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); - in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); - in->ri_gp_value = bfd_h_get_64 (abfd, (bfd_byte *) ex->ri_gp_value); -} - -void -bfd_mips_elf64_swap_reginfo_out (abfd, in, ex) - bfd *abfd; - const Elf64_Internal_RegInfo *in; - Elf64_External_RegInfo *ex; -{ - bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, - (bfd_byte *) ex->ri_gprmask); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_pad, - (bfd_byte *) ex->ri_pad); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], - (bfd_byte *) ex->ri_cprmask[0]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], - (bfd_byte *) ex->ri_cprmask[1]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], - (bfd_byte *) ex->ri_cprmask[2]); - bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], - (bfd_byte *) ex->ri_cprmask[3]); - bfd_h_put_64 (abfd, (bfd_vma) in->ri_gp_value, - (bfd_byte *) ex->ri_gp_value); -} - -/* Swap an entry in a .gptab section. Note that these routines rely - on the equivalence of the two elements of the union. */ - -static void -bfd_mips_elf32_swap_gptab_in (abfd, ex, in) - bfd *abfd; - const Elf32_External_gptab *ex; - Elf32_gptab *in; -{ - in->gt_entry.gt_g_value = bfd_h_get_32 (abfd, ex->gt_entry.gt_g_value); - in->gt_entry.gt_bytes = bfd_h_get_32 (abfd, ex->gt_entry.gt_bytes); -} - -static void -bfd_mips_elf32_swap_gptab_out (abfd, in, ex) - bfd *abfd; - const Elf32_gptab *in; - Elf32_External_gptab *ex; -{ - bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_g_value, - ex->gt_entry.gt_g_value); - bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_bytes, - ex->gt_entry.gt_bytes); -} - -static void -bfd_elf32_swap_compact_rel_out (abfd, in, ex) - bfd *abfd; - const Elf32_compact_rel *in; - Elf32_External_compact_rel *ex; -{ - bfd_h_put_32 (abfd, (bfd_vma) in->id1, ex->id1); - bfd_h_put_32 (abfd, (bfd_vma) in->num, ex->num); - bfd_h_put_32 (abfd, (bfd_vma) in->id2, ex->id2); - bfd_h_put_32 (abfd, (bfd_vma) in->offset, ex->offset); - bfd_h_put_32 (abfd, (bfd_vma) in->reserved0, ex->reserved0); - bfd_h_put_32 (abfd, (bfd_vma) in->reserved1, ex->reserved1); -} - -static void -bfd_elf32_swap_crinfo_out (abfd, in, ex) - bfd *abfd; - const Elf32_crinfo *in; - Elf32_External_crinfo *ex; -{ - unsigned long l; - - l = (((in->ctype & CRINFO_CTYPE) << CRINFO_CTYPE_SH) - | ((in->rtype & CRINFO_RTYPE) << CRINFO_RTYPE_SH) - | ((in->dist2to & CRINFO_DIST2TO) << CRINFO_DIST2TO_SH) - | ((in->relvaddr & CRINFO_RELVADDR) << CRINFO_RELVADDR_SH)); - bfd_h_put_32 (abfd, (bfd_vma) l, ex->info); - bfd_h_put_32 (abfd, (bfd_vma) in->konst, ex->konst); - bfd_h_put_32 (abfd, (bfd_vma) in->vaddr, ex->vaddr); -} - -/* Swap in an options header. */ - -void -bfd_mips_elf_swap_options_in (abfd, ex, in) - bfd *abfd; - const Elf_External_Options *ex; - Elf_Internal_Options *in; -{ - in->kind = bfd_h_get_8 (abfd, ex->kind); - in->size = bfd_h_get_8 (abfd, ex->size); - in->section = bfd_h_get_16 (abfd, ex->section); - in->info = bfd_h_get_32 (abfd, ex->info); -} - -/* Swap out an options header. */ - -void -bfd_mips_elf_swap_options_out (abfd, in, ex) - bfd *abfd; - const Elf_Internal_Options *in; - Elf_External_Options *ex; -{ - bfd_h_put_8 (abfd, in->kind, ex->kind); - bfd_h_put_8 (abfd, in->size, ex->size); - bfd_h_put_16 (abfd, in->section, ex->section); - bfd_h_put_32 (abfd, in->info, ex->info); -} -#if 0 -/* Swap in an MSYM entry. */ - -static void -bfd_mips_elf_swap_msym_in (abfd, ex, in) - bfd *abfd; - const Elf32_External_Msym *ex; - Elf32_Internal_Msym *in; -{ - in->ms_hash_value = bfd_h_get_32 (abfd, ex->ms_hash_value); - in->ms_info = bfd_h_get_32 (abfd, ex->ms_info); -} -#endif -/* Swap out an MSYM entry. */ - -static void -bfd_mips_elf_swap_msym_out (abfd, in, ex) - bfd *abfd; - const Elf32_Internal_Msym *in; - Elf32_External_Msym *ex; -{ - bfd_h_put_32 (abfd, in->ms_hash_value, ex->ms_hash_value); - bfd_h_put_32 (abfd, in->ms_info, ex->ms_info); -} - - -/* Determine whether a symbol is global for the purposes of splitting - the symbol table into global symbols and local symbols. At least - on Irix 5, this split must be between section symbols and all other - symbols. On most ELF targets the split is between static symbols - and externally visible symbols. */ - -/*ARGSUSED*/ -static boolean -mips_elf_sym_is_global (abfd, sym) - bfd *abfd ATTRIBUTE_UNUSED; - asymbol *sym; -{ - return (sym->flags & BSF_SECTION_SYM) == 0 ? true : false; -} - -/* Set the right machine number for a MIPS ELF file. This is used for - both the 32-bit and the 64-bit ABI. */ - -boolean -_bfd_mips_elf_object_p (abfd) - bfd *abfd; -{ - /* Irix 5 and 6 is broken. Object file symbol tables are not always - sorted correctly such that local symbols precede global symbols, - and the sh_info field in the symbol table is not always right. */ - elf_bad_symtab (abfd) = true; - - bfd_default_set_arch_mach (abfd, bfd_arch_mips, - elf_mips_mach (elf_elfheader (abfd)->e_flags)); - return true; -} - -/* The final processing done just before writing out a MIPS ELF object - file. This gets the MIPS architecture right based on the machine - number. This is used by both the 32-bit and the 64-bit ABI. */ - -/*ARGSUSED*/ -void -_bfd_mips_elf_final_write_processing (abfd, linker) - bfd *abfd; - boolean linker ATTRIBUTE_UNUSED; -{ - unsigned long val; - unsigned int i; - Elf_Internal_Shdr **hdrpp; - const char *name; - asection *sec; - - switch (bfd_get_mach (abfd)) - { - default: - case bfd_mach_mips3000: - val = E_MIPS_ARCH_1; - break; - - case bfd_mach_mips3900: - val = E_MIPS_ARCH_1 | E_MIPS_MACH_3900; - break; - - case bfd_mach_mips6000: - val = E_MIPS_ARCH_2; - break; - - case bfd_mach_mips4000: - case bfd_mach_mips4300: - val = E_MIPS_ARCH_3; - break; - - case bfd_mach_mips4010: - val = E_MIPS_ARCH_3 | E_MIPS_MACH_4010; - break; - - case bfd_mach_mips4100: - val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100; - break; - - case bfd_mach_mips4111: - val = E_MIPS_ARCH_3 | E_MIPS_MACH_4111; - break; - - case bfd_mach_mips4650: - val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650; - break; - - case bfd_mach_mips8000: - val = E_MIPS_ARCH_4; - break; - } - - elf_elfheader (abfd)->e_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); - elf_elfheader (abfd)->e_flags |= val; - - /* Set the sh_info field for .gptab sections and other appropriate - info for each special section. */ - for (i = 1, hdrpp = elf_elfsections (abfd) + 1; - i < elf_elfheader (abfd)->e_shnum; - i++, hdrpp++) - { - switch ((*hdrpp)->sh_type) - { - case SHT_MIPS_MSYM: - case SHT_MIPS_LIBLIST: - sec = bfd_get_section_by_name (abfd, ".dynstr"); - if (sec != NULL) - (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; - break; - - case SHT_MIPS_GPTAB: - BFD_ASSERT ((*hdrpp)->bfd_section != NULL); - name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); - BFD_ASSERT (name != NULL - && strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0); - sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1); - BFD_ASSERT (sec != NULL); - (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; - break; - - case SHT_MIPS_CONTENT: - BFD_ASSERT ((*hdrpp)->bfd_section != NULL); - name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); - BFD_ASSERT (name != NULL - && strncmp (name, ".MIPS.content", - sizeof ".MIPS.content" - 1) == 0); - sec = bfd_get_section_by_name (abfd, - name + sizeof ".MIPS.content" - 1); - BFD_ASSERT (sec != NULL); - (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; - break; - - case SHT_MIPS_SYMBOL_LIB: - sec = bfd_get_section_by_name (abfd, ".dynsym"); - if (sec != NULL) - (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; - sec = bfd_get_section_by_name (abfd, ".liblist"); - if (sec != NULL) - (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; - break; - - case SHT_MIPS_EVENTS: - BFD_ASSERT ((*hdrpp)->bfd_section != NULL); - name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); - BFD_ASSERT (name != NULL); - if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0) - sec = bfd_get_section_by_name (abfd, - name + sizeof ".MIPS.events" - 1); - else - { - BFD_ASSERT (strncmp (name, ".MIPS.post_rel", - sizeof ".MIPS.post_rel" - 1) == 0); - sec = bfd_get_section_by_name (abfd, - (name - + sizeof ".MIPS.post_rel" - 1)); - } - BFD_ASSERT (sec != NULL); - (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; - break; - - } - } -} - -/* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */ - -boolean -_bfd_mips_elf_set_private_flags (abfd, flags) - bfd *abfd; - flagword flags; -{ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = true; - return true; -} - -/* Copy backend specific data from one object module to another */ - -boolean -_bfd_mips_elf_copy_private_bfd_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - BFD_ASSERT (!elf_flags_init (obfd) - || (elf_elfheader (obfd)->e_flags - == elf_elfheader (ibfd)->e_flags)); - - elf_gp (obfd) = elf_gp (ibfd); - elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; - elf_flags_init (obfd) = true; - return true; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -boolean -_bfd_mips_elf_merge_private_bfd_data (ibfd, obfd) - bfd *ibfd; - bfd *obfd; -{ - flagword old_flags; - flagword new_flags; - boolean ok; - - /* Check if we have the same endianess */ - if (ibfd->xvec->byteorder != obfd->xvec->byteorder - && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) - { - const char *msg; - - if (bfd_big_endian (ibfd)) - msg = _("%s: compiled for a big endian system and target is little endian"); - else - msg = _("%s: compiled for a little endian system and target is big endian"); - - (*_bfd_error_handler) (msg, bfd_get_filename (ibfd)); - - bfd_set_error (bfd_error_wrong_format); - return false; - } - - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - new_flags = elf_elfheader (ibfd)->e_flags; - elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER; - old_flags = elf_elfheader (obfd)->e_flags; - - if (! elf_flags_init (obfd)) - { - elf_flags_init (obfd) = true; - elf_elfheader (obfd)->e_flags = new_flags; - elf_elfheader (obfd)->e_ident[EI_CLASS] - = elf_elfheader (ibfd)->e_ident[EI_CLASS]; - - if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) - && bfd_get_arch_info (obfd)->the_default) - { - if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), - bfd_get_mach (ibfd))) - return false; - } - - return true; - } - - /* Check flag compatibility. */ - - new_flags &= ~EF_MIPS_NOREORDER; - old_flags &= ~EF_MIPS_NOREORDER; - - if (new_flags == old_flags) - return true; - - ok = true; - - if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC)) - { - new_flags &= ~EF_MIPS_PIC; - old_flags &= ~EF_MIPS_PIC; - (*_bfd_error_handler) - (_("%s: linking PIC files with non-PIC files"), - bfd_get_filename (ibfd)); - ok = false; - } - - if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC)) - { - new_flags &= ~EF_MIPS_CPIC; - old_flags &= ~EF_MIPS_CPIC; - (*_bfd_error_handler) - (_("%s: linking abicalls files with non-abicalls files"), - bfd_get_filename (ibfd)); - ok = false; - } - - /* Compare the ISA's. */ - if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)) - != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))) - { - int new_mach = new_flags & EF_MIPS_MACH; - int old_mach = old_flags & EF_MIPS_MACH; - int new_isa = elf_mips_isa (new_flags); - int old_isa = elf_mips_isa (old_flags); - - /* If either has no machine specified, just compare the general isa's. - Some combinations of machines are ok, if the isa's match. */ - if (! new_mach - || ! old_mach - || new_mach == old_mach - ) - { - /* Don't warn about mixing -mips1 and -mips2 code, or mixing -mips3 - and -mips4 code. They will normally use the same data sizes and - calling conventions. */ - - if ((new_isa == 1 || new_isa == 2) - ? (old_isa != 1 && old_isa != 2) - : (old_isa == 1 || old_isa == 2)) - { - (*_bfd_error_handler) - (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"), - bfd_get_filename (ibfd), new_isa, old_isa); - ok = false; - } - } - - else - { - (*_bfd_error_handler) - (_("%s: ISA mismatch (%d) with previous modules (%d)"), - bfd_get_filename (ibfd), - elf_mips_mach (new_flags), - elf_mips_mach (old_flags)); - ok = false; - } - - new_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); - old_flags &= ~ (EF_MIPS_ARCH | EF_MIPS_MACH); - } - - /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it - does set EI_CLASS differently from any 32-bit ABI. */ - if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI) - || (elf_elfheader (ibfd)->e_ident[EI_CLASS] - != elf_elfheader (obfd)->e_ident[EI_CLASS])) - { - /* Only error if both are set (to different values). */ - if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI)) - || (elf_elfheader (ibfd)->e_ident[EI_CLASS] - != elf_elfheader (obfd)->e_ident[EI_CLASS])) - { - (*_bfd_error_handler) - (_("%s: ABI mismatch: linking %s module with previous %s modules"), - bfd_get_filename (ibfd), - elf_mips_abi_name (ibfd), - elf_mips_abi_name (obfd)); - ok = false; - } - new_flags &= ~EF_MIPS_ABI; - old_flags &= ~EF_MIPS_ABI; - } - - /* Warn about any other mismatches */ - if (new_flags != old_flags) - { - (*_bfd_error_handler) - (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), - bfd_get_filename (ibfd), (unsigned long) new_flags, - (unsigned long) old_flags); - ok = false; - } - - if (! ok) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - return true; -} - -boolean -_bfd_mips_elf_print_private_bfd_data (abfd, ptr) - bfd *abfd; - PTR ptr; -{ - FILE *file = (FILE *) ptr; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - /* Print normal ELF private data. */ - _bfd_elf_print_private_bfd_data (abfd, ptr); - - /* xgettext:c-format */ - fprintf (file, _ ("private flags = %lx:"), elf_elfheader (abfd)->e_flags); - - if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32) - fprintf (file, _ (" [abi=O32]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O64) - fprintf (file, _ (" [abi=O64]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32) - fprintf (file, _ (" [abi=EABI32]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI64) - fprintf (file, _ (" [abi=EABI64]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI)) - fprintf (file, _ (" [abi unknown]")); - else if (ABI_N32_P (abfd)) - fprintf (file, _ (" [abi=N32]")); - else if (ABI_64_P (abfd)) - fprintf (file, _ (" [abi=64]")); - else - fprintf (file, _ (" [no abi set]")); - - if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1) - fprintf (file, _ (" [mips1]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2) - fprintf (file, _ (" [mips2]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3) - fprintf (file, _ (" [mips3]")); - else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4) - fprintf (file, _ (" [mips4]")); - else - fprintf (file, _ (" [unknown ISA]")); - - if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE) - fprintf (file, _ (" [32bitmode]")); - else - fprintf (file, _ (" [not 32bitmode]")); - - fputc ('\n', file); - - return true; -} - -/* Handle a MIPS specific section when reading an object file. This - is called when elfcode.h finds a section with an unknown type. - This routine supports both the 32-bit and 64-bit ELF ABI. - - FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure - how to. */ - -boolean -_bfd_mips_elf_section_from_shdr (abfd, hdr, name) - bfd *abfd; - Elf_Internal_Shdr *hdr; - char *name; -{ - flagword flags = 0; - - /* There ought to be a place to keep ELF backend specific flags, but - at the moment there isn't one. We just keep track of the - sections by their name, instead. Fortunately, the ABI gives - suggested names for all the MIPS specific sections, so we will - probably get away with this. */ - switch (hdr->sh_type) - { - case SHT_MIPS_LIBLIST: - if (strcmp (name, ".liblist") != 0) - return false; - break; - case SHT_MIPS_MSYM: - if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0) - return false; - break; - case SHT_MIPS_CONFLICT: - if (strcmp (name, ".conflict") != 0) - return false; - break; - case SHT_MIPS_GPTAB: - if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0) - return false; - break; - case SHT_MIPS_UCODE: - if (strcmp (name, ".ucode") != 0) - return false; - break; - case SHT_MIPS_DEBUG: - if (strcmp (name, ".mdebug") != 0) - return false; - flags = SEC_DEBUGGING; - break; - case SHT_MIPS_REGINFO: - if (strcmp (name, ".reginfo") != 0 - || hdr->sh_size != sizeof (Elf32_External_RegInfo)) - return false; - flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE); - break; - case SHT_MIPS_IFACE: - if (strcmp (name, ".MIPS.interfaces") != 0) - return false; - break; - case SHT_MIPS_CONTENT: - if (strncmp (name, ".MIPS.content", sizeof ".MIPS.content" - 1) != 0) - return false; - break; - case SHT_MIPS_OPTIONS: - if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) != 0) - return false; - break; - case SHT_MIPS_DWARF: - if (strncmp (name, ".debug_", sizeof ".debug_" - 1) != 0) - return false; - break; - case SHT_MIPS_SYMBOL_LIB: - if (strcmp (name, ".MIPS.symlib") != 0) - return false; - break; - case SHT_MIPS_EVENTS: - if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) != 0 - && strncmp (name, ".MIPS.post_rel", - sizeof ".MIPS.post_rel" - 1) != 0) - return false; - break; - default: - return false; - } - - if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) - return false; - - if (flags) - { - if (! bfd_set_section_flags (abfd, hdr->bfd_section, - (bfd_get_section_flags (abfd, - hdr->bfd_section) - | flags))) - return false; - } - - /* FIXME: We should record sh_info for a .gptab section. */ - - /* For a .reginfo section, set the gp value in the tdata information - from the contents of this section. We need the gp value while - processing relocs, so we just get it now. The .reginfo section - is not used in the 64-bit MIPS ELF ABI. */ - if (hdr->sh_type == SHT_MIPS_REGINFO) - { - Elf32_External_RegInfo ext; - Elf32_RegInfo s; - - if (! bfd_get_section_contents (abfd, hdr->bfd_section, (PTR) &ext, - (file_ptr) 0, sizeof ext)) - return false; - bfd_mips_elf32_swap_reginfo_in (abfd, &ext, &s); - elf_gp (abfd) = s.ri_gp_value; - } - - /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and - set the gp value based on what we find. We may see both - SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case, - they should agree. */ - if (hdr->sh_type == SHT_MIPS_OPTIONS) - { - bfd_byte *contents, *l, *lend; - - contents = (bfd_byte *) bfd_malloc (hdr->sh_size); - if (contents == NULL) - return false; - if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents, - (file_ptr) 0, hdr->sh_size)) - { - free (contents); - return false; - } - l = contents; - lend = contents + hdr->sh_size; - while (l + sizeof (Elf_External_Options) <= lend) - { - Elf_Internal_Options intopt; - - bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, - &intopt); - if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO) - { - Elf64_Internal_RegInfo intreg; - - bfd_mips_elf64_swap_reginfo_in - (abfd, - ((Elf64_External_RegInfo *) - (l + sizeof (Elf_External_Options))), - &intreg); - elf_gp (abfd) = intreg.ri_gp_value; - } - else if (intopt.kind == ODK_REGINFO) - { - Elf32_RegInfo intreg; - - bfd_mips_elf32_swap_reginfo_in - (abfd, - ((Elf32_External_RegInfo *) - (l + sizeof (Elf_External_Options))), - &intreg); - elf_gp (abfd) = intreg.ri_gp_value; - } - l += intopt.size; - } - free (contents); - } - - return true; -} - -/* Set the correct type for a MIPS ELF section. We do this by the - section name, which is a hack, but ought to work. This routine is - used by both the 32-bit and the 64-bit ABI. */ - -boolean -_bfd_mips_elf_fake_sections (abfd, hdr, sec) - bfd *abfd; - Elf32_Internal_Shdr *hdr; - asection *sec; -{ - register const char *name; - - name = bfd_get_section_name (abfd, sec); - - if (strcmp (name, ".liblist") == 0) - { - hdr->sh_type = SHT_MIPS_LIBLIST; - hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib); - /* The sh_link field is set in final_write_processing. */ - } - else if (strcmp (name, ".conflict") == 0) - hdr->sh_type = SHT_MIPS_CONFLICT; - else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0) - { - hdr->sh_type = SHT_MIPS_GPTAB; - hdr->sh_entsize = sizeof (Elf32_External_gptab); - /* The sh_info field is set in final_write_processing. */ - } - else if (strcmp (name, ".ucode") == 0) - hdr->sh_type = SHT_MIPS_UCODE; - else if (strcmp (name, ".mdebug") == 0) - { - hdr->sh_type = SHT_MIPS_DEBUG; - /* In a shared object on Irix 5.3, the .mdebug section has an - entsize of 0. FIXME: Does this matter? */ - if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0) - hdr->sh_entsize = 0; - else - hdr->sh_entsize = 1; - } - else if (strcmp (name, ".reginfo") == 0) - { - hdr->sh_type = SHT_MIPS_REGINFO; - /* In a shared object on Irix 5.3, the .reginfo section has an - entsize of 0x18. FIXME: Does this matter? */ - if (SGI_COMPAT (abfd) && (abfd->flags & DYNAMIC) != 0) - hdr->sh_entsize = sizeof (Elf32_External_RegInfo); - else - hdr->sh_entsize = 1; - } - else if (SGI_COMPAT (abfd) - && (strcmp (name, ".hash") == 0 - || strcmp (name, ".dynamic") == 0 - || strcmp (name, ".dynstr") == 0)) - { - hdr->sh_entsize = 0; -#if 0 - /* This isn't how the Irix 6 linker behaves. */ - hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES; -#endif - } - else if (strcmp (name, ".got") == 0 - || strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0 - || strcmp (name, ".sdata") == 0 - || strcmp (name, ".sbss") == 0 - || strcmp (name, ".lit4") == 0 - || strcmp (name, ".lit8") == 0) - hdr->sh_flags |= SHF_MIPS_GPREL; - else if (strcmp (name, ".MIPS.interfaces") == 0) - { - hdr->sh_type = SHT_MIPS_IFACE; - hdr->sh_flags |= SHF_MIPS_NOSTRIP; - } - else if (strncmp (name, ".MIPS.content", strlen (".MIPS.content")) == 0) - { - hdr->sh_type = SHT_MIPS_CONTENT; - hdr->sh_flags |= SHF_MIPS_NOSTRIP; - /* The sh_info field is set in final_write_processing. */ - } - else if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0) - { - hdr->sh_type = SHT_MIPS_OPTIONS; - hdr->sh_entsize = 1; - hdr->sh_flags |= SHF_MIPS_NOSTRIP; - } - else if (strncmp (name, ".debug_", sizeof ".debug_" - 1) == 0) - hdr->sh_type = SHT_MIPS_DWARF; - else if (strcmp (name, ".MIPS.symlib") == 0) - { - hdr->sh_type = SHT_MIPS_SYMBOL_LIB; - /* The sh_link and sh_info fields are set in - final_write_processing. */ - } - else if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0 - || strncmp (name, ".MIPS.post_rel", - sizeof ".MIPS.post_rel" - 1) == 0) - { - hdr->sh_type = SHT_MIPS_EVENTS; - hdr->sh_flags |= SHF_MIPS_NOSTRIP; - /* The sh_link field is set in final_write_processing. */ - } - else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) == 0) - { - hdr->sh_type = SHT_MIPS_MSYM; - hdr->sh_flags |= SHF_ALLOC; - hdr->sh_entsize = 8; - } - - /* The generic elf_fake_sections will set up REL_HDR using the - default kind of relocations. But, we may actually need both - kinds of relocations, so we set up the second header here. */ - if ((sec->flags & SEC_RELOC) != 0) - { - struct bfd_elf_section_data *esd; - - esd = elf_section_data (sec); - BFD_ASSERT (esd->rel_hdr2 == NULL); - esd->rel_hdr2 - = (Elf_Internal_Shdr *) bfd_zalloc (abfd, sizeof (Elf_Internal_Shdr)); - if (!esd->rel_hdr2) - return false; - _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec, - !elf_section_data (sec)->use_rela_p); - } - - return true; -} - -/* Given a BFD section, try to locate the corresponding ELF section - index. This is used by both the 32-bit and the 64-bit ABI. - Actually, it's not clear to me that the 64-bit ABI supports these, - but for non-PIC objects we will certainly want support for at least - the .scommon section. */ - -boolean -_bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval) - bfd *abfd ATTRIBUTE_UNUSED; - Elf32_Internal_Shdr *hdr ATTRIBUTE_UNUSED; - asection *sec; - int *retval; -{ - if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) - { - *retval = SHN_MIPS_SCOMMON; - return true; - } - if (strcmp (bfd_get_section_name (abfd, sec), ".acommon") == 0) - { - *retval = SHN_MIPS_ACOMMON; - return true; - } - return false; -} - -/* When are writing out the .options or .MIPS.options section, - remember the bytes we are writing out, so that we can install the - GP value in the section_processing routine. */ - -boolean -_bfd_mips_elf_set_section_contents (abfd, section, location, offset, count) - bfd *abfd; - sec_ptr section; - PTR location; - file_ptr offset; - bfd_size_type count; -{ - if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0) - { - bfd_byte *c; - - if (elf_section_data (section) == NULL) - { - section->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data)); - if (elf_section_data (section) == NULL) - return false; - } - c = (bfd_byte *) elf_section_data (section)->tdata; - if (c == NULL) - { - bfd_size_type size; - - if (section->_cooked_size != 0) - size = section->_cooked_size; - else - size = section->_raw_size; - c = (bfd_byte *) bfd_zalloc (abfd, size); - if (c == NULL) - return false; - elf_section_data (section)->tdata = (PTR) c; - } - - memcpy (c + offset, location, count); - } - - return _bfd_elf_set_section_contents (abfd, section, location, offset, - count); -} - -/* Work over a section just before writing it out. This routine is - used by both the 32-bit and the 64-bit ABI. FIXME: We recognize - sections that need the SHF_MIPS_GPREL flag by name; there has to be - a better way. */ - -boolean -_bfd_mips_elf_section_processing (abfd, hdr) - bfd *abfd; - Elf_Internal_Shdr *hdr; -{ - if (hdr->sh_type == SHT_MIPS_REGINFO - && hdr->sh_size > 0) - { - bfd_byte buf[4]; - - BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo)); - BFD_ASSERT (hdr->contents == NULL); - - if (bfd_seek (abfd, - hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4, - SEEK_SET) == -1) - return false; - bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf); - if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4) - return false; - } - - if (hdr->sh_type == SHT_MIPS_OPTIONS - && hdr->bfd_section != NULL - && elf_section_data (hdr->bfd_section) != NULL - && elf_section_data (hdr->bfd_section)->tdata != NULL) - { - bfd_byte *contents, *l, *lend; - - /* We stored the section contents in the elf_section_data tdata - field in the set_section_contents routine. We save the - section contents so that we don't have to read them again. - At this point we know that elf_gp is set, so we can look - through the section contents to see if there is an - ODK_REGINFO structure. */ - - contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata; - l = contents; - lend = contents + hdr->sh_size; - while (l + sizeof (Elf_External_Options) <= lend) - { - Elf_Internal_Options intopt; - - bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, - &intopt); - if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO) - { - bfd_byte buf[8]; - - if (bfd_seek (abfd, - (hdr->sh_offset - + (l - contents) - + sizeof (Elf_External_Options) - + (sizeof (Elf64_External_RegInfo) - 8)), - SEEK_SET) == -1) - return false; - bfd_h_put_64 (abfd, elf_gp (abfd), buf); - if (bfd_write (buf, 1, 8, abfd) != 8) - return false; - } - else if (intopt.kind == ODK_REGINFO) - { - bfd_byte buf[4]; - - if (bfd_seek (abfd, - (hdr->sh_offset - + (l - contents) - + sizeof (Elf_External_Options) - + (sizeof (Elf32_External_RegInfo) - 4)), - SEEK_SET) == -1) - return false; - bfd_h_put_32 (abfd, elf_gp (abfd), buf); - if (bfd_write (buf, 1, 4, abfd) != 4) - return false; - } - l += intopt.size; - } - } - - if (hdr->bfd_section != NULL) - { - const char *name = bfd_get_section_name (abfd, hdr->bfd_section); - - if (strcmp (name, ".sdata") == 0 - || strcmp (name, ".lit8") == 0 - || strcmp (name, ".lit4") == 0) - { - hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; - hdr->sh_type = SHT_PROGBITS; - } - else if (strcmp (name, ".sbss") == 0) - { - hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; - hdr->sh_type = SHT_NOBITS; - } - else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0) - { - hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL; - hdr->sh_type = SHT_PROGBITS; - } - else if (strcmp (name, ".compact_rel") == 0) - { - hdr->sh_flags = 0; - hdr->sh_type = SHT_PROGBITS; - } - else if (strcmp (name, ".rtproc") == 0) - { - if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0) - { - unsigned int adjust; - - adjust = hdr->sh_size % hdr->sh_addralign; - if (adjust != 0) - hdr->sh_size += hdr->sh_addralign - adjust; - } - } - } - - return true; -} - - -/* MIPS ELF uses two common sections. One is the usual one, and the - other is for small objects. All the small objects are kept - together, and then referenced via the gp pointer, which yields - faster assembler code. This is what we use for the small common - section. This approach is copied from ecoff.c. */ -static asection mips_elf_scom_section; -static asymbol mips_elf_scom_symbol; -static asymbol *mips_elf_scom_symbol_ptr; - -/* MIPS ELF also uses an acommon section, which represents an - allocated common symbol which may be overridden by a - definition in a shared library. */ -static asection mips_elf_acom_section; -static asymbol mips_elf_acom_symbol; -static asymbol *mips_elf_acom_symbol_ptr; - -/* The Irix 5 support uses two virtual sections, which represent - text/data symbols defined in dynamic objects. */ -static asection mips_elf_text_section; -static asection *mips_elf_text_section_ptr; -static asymbol mips_elf_text_symbol; -static asymbol *mips_elf_text_symbol_ptr; - -static asection mips_elf_data_section; -static asection *mips_elf_data_section_ptr; -static asymbol mips_elf_data_symbol; -static asymbol *mips_elf_data_symbol_ptr; - -/* Handle the special MIPS section numbers that a symbol may use. - This is used for both the 32-bit and the 64-bit ABI. */ - -void -_bfd_mips_elf_symbol_processing (abfd, asym) - bfd *abfd; - asymbol *asym; -{ - elf_symbol_type *elfsym; - - elfsym = (elf_symbol_type *) asym; - switch (elfsym->internal_elf_sym.st_shndx) - { - case SHN_MIPS_ACOMMON: - /* This section is used in a dynamically linked executable file. - It is an allocated common section. The dynamic linker can - either resolve these symbols to something in a shared - library, or it can just leave them here. For our purposes, - we can consider these symbols to be in a new section. */ - if (mips_elf_acom_section.name == NULL) - { - /* Initialize the acommon section. */ - mips_elf_acom_section.name = ".acommon"; - mips_elf_acom_section.flags = SEC_ALLOC; - mips_elf_acom_section.output_section = &mips_elf_acom_section; - mips_elf_acom_section.symbol = &mips_elf_acom_symbol; - mips_elf_acom_section.symbol_ptr_ptr = &mips_elf_acom_symbol_ptr; - mips_elf_acom_symbol.name = ".acommon"; - mips_elf_acom_symbol.flags = BSF_SECTION_SYM; - mips_elf_acom_symbol.section = &mips_elf_acom_section; - mips_elf_acom_symbol_ptr = &mips_elf_acom_symbol; - } - asym->section = &mips_elf_acom_section; - break; - - case SHN_COMMON: - /* Common symbols less than the GP size are automatically - treated as SHN_MIPS_SCOMMON symbols on IRIX5. */ - if (asym->value > elf_gp_size (abfd) - || IRIX_COMPAT (abfd) == ict_irix6) - break; - /* Fall through. */ - case SHN_MIPS_SCOMMON: - if (mips_elf_scom_section.name == NULL) - { - /* Initialize the small common section. */ - mips_elf_scom_section.name = ".scommon"; - mips_elf_scom_section.flags = SEC_IS_COMMON; - mips_elf_scom_section.output_section = &mips_elf_scom_section; - mips_elf_scom_section.symbol = &mips_elf_scom_symbol; - mips_elf_scom_section.symbol_ptr_ptr = &mips_elf_scom_symbol_ptr; - mips_elf_scom_symbol.name = ".scommon"; - mips_elf_scom_symbol.flags = BSF_SECTION_SYM; - mips_elf_scom_symbol.section = &mips_elf_scom_section; - mips_elf_scom_symbol_ptr = &mips_elf_scom_symbol; - } - asym->section = &mips_elf_scom_section; - asym->value = elfsym->internal_elf_sym.st_size; - break; - - case SHN_MIPS_SUNDEFINED: - asym->section = bfd_und_section_ptr; - break; - -#if 0 /* for SGI_COMPAT */ - case SHN_MIPS_TEXT: - asym->section = mips_elf_text_section_ptr; - break; - - case SHN_MIPS_DATA: - asym->section = mips_elf_data_section_ptr; - break; -#endif - } -} - -/* When creating an Irix 5 executable, we need REGINFO and RTPROC - segments. */ - -int -_bfd_mips_elf_additional_program_headers (abfd) - bfd *abfd; -{ - asection *s; - int ret = 0; - - if (!SGI_COMPAT (abfd)) - return 0; - - /* See if we need a PT_MIPS_REGINFO segment. */ - s = bfd_get_section_by_name (abfd, ".reginfo"); - if (s && (s->flags & SEC_LOAD)) - ++ret; - - /* See if we need a PT_MIPS_OPTIONS segment. */ - if (IRIX_COMPAT (abfd) == ict_irix6 - && bfd_get_section_by_name (abfd, - MIPS_ELF_OPTIONS_SECTION_NAME (abfd))) - ++ret; - - /* See if we need a PT_MIPS_RTPROC segment. */ - if (IRIX_COMPAT (abfd) == ict_irix5 - && bfd_get_section_by_name (abfd, ".dynamic") - && bfd_get_section_by_name (abfd, ".mdebug")) - ++ret; - - return ret; -} - -/* Modify the segment map for an Irix 5 executable. */ - -boolean -_bfd_mips_elf_modify_segment_map (abfd) - bfd *abfd; -{ - asection *s; - struct elf_segment_map *m, **pm; - - if (! SGI_COMPAT (abfd)) - return true; - - /* If there is a .reginfo section, we need a PT_MIPS_REGINFO - segment. */ - s = bfd_get_section_by_name (abfd, ".reginfo"); - if (s != NULL && (s->flags & SEC_LOAD) != 0) - { - for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) - if (m->p_type == PT_MIPS_REGINFO) - break; - if (m == NULL) - { - m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); - if (m == NULL) - return false; - - m->p_type = PT_MIPS_REGINFO; - m->count = 1; - m->sections[0] = s; - - /* We want to put it after the PHDR and INTERP segments. */ - pm = &elf_tdata (abfd)->segment_map; - while (*pm != NULL - && ((*pm)->p_type == PT_PHDR - || (*pm)->p_type == PT_INTERP)) - pm = &(*pm)->next; - - m->next = *pm; - *pm = m; - } - } - - /* For IRIX 6, we don't have .mdebug sections, nor does anything but - .dynamic end up in PT_DYNAMIC. However, we do have to insert a - PT_OPTIONS segement immediately following the program header - table. */ - if (IRIX_COMPAT (abfd) == ict_irix6) - { - asection *s; - - for (s = abfd->sections; s; s = s->next) - if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS) - break; - - if (s) - { - struct elf_segment_map *options_segment; - - /* Usually, there's a program header table. But, sometimes - there's not (like when running the `ld' testsuite). So, - if there's no program header table, we just put the - options segement at the end. */ - for (pm = &elf_tdata (abfd)->segment_map; - *pm != NULL; - pm = &(*pm)->next) - if ((*pm)->p_type == PT_PHDR) - break; - - options_segment = bfd_zalloc (abfd, - sizeof (struct elf_segment_map)); - options_segment->next = *pm; - options_segment->p_type = PT_MIPS_OPTIONS; - options_segment->p_flags = PF_R; - options_segment->p_flags_valid = true; - options_segment->count = 1; - options_segment->sections[0] = s; - *pm = options_segment; - } - } - else - { - /* If there are .dynamic and .mdebug sections, we make a room - for the RTPROC header. FIXME: Rewrite without section names. */ - if (bfd_get_section_by_name (abfd, ".interp") == NULL - && bfd_get_section_by_name (abfd, ".dynamic") != NULL - && bfd_get_section_by_name (abfd, ".mdebug") != NULL) - { - for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) - if (m->p_type == PT_MIPS_RTPROC) - break; - if (m == NULL) - { - m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); - if (m == NULL) - return false; - - m->p_type = PT_MIPS_RTPROC; - - s = bfd_get_section_by_name (abfd, ".rtproc"); - if (s == NULL) - { - m->count = 0; - m->p_flags = 0; - m->p_flags_valid = 1; - } - else - { - m->count = 1; - m->sections[0] = s; - } - - /* We want to put it after the DYNAMIC segment. */ - pm = &elf_tdata (abfd)->segment_map; - while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC) - pm = &(*pm)->next; - if (*pm != NULL) - pm = &(*pm)->next; - - m->next = *pm; - *pm = m; - } - } - - /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic, - .dynstr, .dynsym, and .hash sections, and everything in - between. */ - for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) - if ((*pm)->p_type == PT_DYNAMIC) - break; - m = *pm; - if (m != NULL - && m->count == 1 - && strcmp (m->sections[0]->name, ".dynamic") == 0) - { - static const char *sec_names[] = - { ".dynamic", ".dynstr", ".dynsym", ".hash" }; - bfd_vma low, high; - unsigned int i, c; - struct elf_segment_map *n; - - low = 0xffffffff; - high = 0; - for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++) - { - s = bfd_get_section_by_name (abfd, sec_names[i]); - if (s != NULL && (s->flags & SEC_LOAD) != 0) - { - bfd_size_type sz; - - if (low > s->vma) - low = s->vma; - sz = s->_cooked_size; - if (sz == 0) - sz = s->_raw_size; - if (high < s->vma + sz) - high = s->vma + sz; - } - } - - c = 0; - for (s = abfd->sections; s != NULL; s = s->next) - if ((s->flags & SEC_LOAD) != 0 - && s->vma >= low - && ((s->vma - + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size)) - <= high)) - ++c; - - n = ((struct elf_segment_map *) - bfd_zalloc (abfd, sizeof *n + (c - 1) * sizeof (asection *))); - if (n == NULL) - return false; - *n = *m; - n->count = c; - - i = 0; - for (s = abfd->sections; s != NULL; s = s->next) - { - if ((s->flags & SEC_LOAD) != 0 - && s->vma >= low - && ((s->vma - + (s->_cooked_size != 0 ? - s->_cooked_size : s->_raw_size)) - <= high)) - { - n->sections[i] = s; - ++i; - } - } - - *pm = n; - } - } - - return true; -} - -/* The structure of the runtime procedure descriptor created by the - loader for use by the static exception system. */ - -typedef struct runtime_pdr { - bfd_vma adr; /* memory address of start of procedure */ - long regmask; /* save register mask */ - long regoffset; /* save register offset */ - long fregmask; /* save floating point register mask */ - long fregoffset; /* save floating point register offset */ - long frameoffset; /* frame size */ - short framereg; /* frame pointer register */ - short pcreg; /* offset or reg of return pc */ - long irpss; /* index into the runtime string table */ - long reserved; - struct exception_info *exception_info;/* pointer to exception array */ -} RPDR, *pRPDR; -#define cbRPDR sizeof(RPDR) -#define rpdNil ((pRPDR) 0) - -/* Swap RPDR (runtime procedure table entry) for output. */ - -static void ecoff_swap_rpdr_out - PARAMS ((bfd *, const RPDR *, struct rpdr_ext *)); - -static void -ecoff_swap_rpdr_out (abfd, in, ex) - bfd *abfd; - const RPDR *in; - struct rpdr_ext *ex; -{ - /* ecoff_put_off was defined in ecoffswap.h. */ - ecoff_put_off (abfd, in->adr, (bfd_byte *) ex->p_adr); - bfd_h_put_32 (abfd, in->regmask, (bfd_byte *) ex->p_regmask); - bfd_h_put_32 (abfd, in->regoffset, (bfd_byte *) ex->p_regoffset); - bfd_h_put_32 (abfd, in->fregmask, (bfd_byte *) ex->p_fregmask); - bfd_h_put_32 (abfd, in->fregoffset, (bfd_byte *) ex->p_fregoffset); - bfd_h_put_32 (abfd, in->frameoffset, (bfd_byte *) ex->p_frameoffset); - - bfd_h_put_16 (abfd, in->framereg, (bfd_byte *) ex->p_framereg); - bfd_h_put_16 (abfd, in->pcreg, (bfd_byte *) ex->p_pcreg); - - bfd_h_put_32 (abfd, in->irpss, (bfd_byte *) ex->p_irpss); -#if 0 /* FIXME */ - ecoff_put_off (abfd, in->exception_info, (bfd_byte *) ex->p_exception_info); -#endif -} - -/* Read ECOFF debugging information from a .mdebug section into a - ecoff_debug_info structure. */ - -boolean -_bfd_mips_elf_read_ecoff_info (abfd, section, debug) - bfd *abfd; - asection *section; - struct ecoff_debug_info *debug; -{ - HDRR *symhdr; - const struct ecoff_debug_swap *swap; - char *ext_hdr = NULL; - - swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; - memset (debug, 0, sizeof(*debug)); - - ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size); - if (ext_hdr == NULL && swap->external_hdr_size != 0) - goto error_return; - - if (bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0, - swap->external_hdr_size) - == false) - goto error_return; - - symhdr = &debug->symbolic_header; - (*swap->swap_hdr_in) (abfd, ext_hdr, symhdr); - - /* The symbolic header contains absolute file offsets and sizes to - read. */ -#define READ(ptr, offset, count, size, type) \ - if (symhdr->count == 0) \ - debug->ptr = NULL; \ - else \ - { \ - debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \ - if (debug->ptr == NULL) \ - goto error_return; \ - if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ - || (bfd_read (debug->ptr, size, symhdr->count, \ - abfd) != size * symhdr->count)) \ - goto error_return; \ - } - - READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *); - READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); - READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); - READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); - READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); - READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), - union aux_ext *); - READ (ss, cbSsOffset, issMax, sizeof (char), char *); - READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *); - READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); - READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); - READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR); -#undef READ - - debug->fdr = NULL; - debug->adjust = NULL; - - return true; - - error_return: - if (ext_hdr != NULL) - free (ext_hdr); - if (debug->line != NULL) - free (debug->line); - if (debug->external_dnr != NULL) - free (debug->external_dnr); - if (debug->external_pdr != NULL) - free (debug->external_pdr); - if (debug->external_sym != NULL) - free (debug->external_sym); - if (debug->external_opt != NULL) - free (debug->external_opt); - if (debug->external_aux != NULL) - free (debug->external_aux); - if (debug->ss != NULL) - free (debug->ss); - if (debug->ssext != NULL) - free (debug->ssext); - if (debug->external_fdr != NULL) - free (debug->external_fdr); - if (debug->external_rfd != NULL) - free (debug->external_rfd); - if (debug->external_ext != NULL) - free (debug->external_ext); - return false; -} - -/* MIPS ELF local labels start with '$', not 'L'. */ - -/*ARGSUSED*/ -static boolean -mips_elf_is_local_label_name (abfd, name) - bfd *abfd; - const char *name; -{ - if (name[0] == '$') - return true; - - /* On Irix 6, the labels go back to starting with '.', so we accept - the generic ELF local label syntax as well. */ - return _bfd_elf_is_local_label_name (abfd, name); -} - -/* MIPS ELF uses a special find_nearest_line routine in order the - handle the ECOFF debugging information. */ - -struct mips_elf_find_line -{ - struct ecoff_debug_info d; - struct ecoff_find_line i; -}; - -boolean -_bfd_mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr, - functionname_ptr, line_ptr) - bfd *abfd; - asection *section; - asymbol **symbols; - bfd_vma offset; - const char **filename_ptr; - const char **functionname_ptr; - unsigned int *line_ptr; -{ - asection *msec; - - if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset, - filename_ptr, functionname_ptr, - line_ptr)) - return true; - - if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, - filename_ptr, functionname_ptr, - line_ptr, - ABI_64_P (abfd) ? 8 : 0)) - return true; - - msec = bfd_get_section_by_name (abfd, ".mdebug"); - if (msec != NULL) - { - flagword origflags; - struct mips_elf_find_line *fi; - const struct ecoff_debug_swap * const swap = - get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; - - /* If we are called during a link, mips_elf_final_link may have - cleared the SEC_HAS_CONTENTS field. We force it back on here - if appropriate (which it normally will be). */ - origflags = msec->flags; - if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS) - msec->flags |= SEC_HAS_CONTENTS; - - fi = elf_tdata (abfd)->find_line_info; - if (fi == NULL) - { - bfd_size_type external_fdr_size; - char *fraw_src; - char *fraw_end; - struct fdr *fdr_ptr; - - fi = ((struct mips_elf_find_line *) - bfd_zalloc (abfd, sizeof (struct mips_elf_find_line))); - if (fi == NULL) - { - msec->flags = origflags; - return false; - } - - if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d)) - { - msec->flags = origflags; - return false; - } - - /* Swap in the FDR information. */ - fi->d.fdr = ((struct fdr *) - bfd_alloc (abfd, - (fi->d.symbolic_header.ifdMax * - sizeof (struct fdr)))); - if (fi->d.fdr == NULL) - { - msec->flags = origflags; - return false; - } - external_fdr_size = swap->external_fdr_size; - fdr_ptr = fi->d.fdr; - fraw_src = (char *) fi->d.external_fdr; - fraw_end = (fraw_src - + fi->d.symbolic_header.ifdMax * external_fdr_size); - for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) - (*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); - - elf_tdata (abfd)->find_line_info = fi; - - /* Note that we don't bother to ever free this information. - find_nearest_line is either called all the time, as in - objdump -l, so the information should be saved, or it is - rarely called, as in ld error messages, so the memory - wasted is unimportant. Still, it would probably be a - good idea for free_cached_info to throw it away. */ - } - - if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap, - &fi->i, filename_ptr, functionname_ptr, - line_ptr)) - { - msec->flags = origflags; - return true; - } - - msec->flags = origflags; - } - - /* Fall back on the generic ELF find_nearest_line routine. */ - - return _bfd_elf_find_nearest_line (abfd, section, symbols, offset, - filename_ptr, functionname_ptr, - line_ptr); -} - - /* The mips16 compiler uses a couple of special sections to handle - floating point arguments. - - Section names that look like .mips16.fn.FNNAME contain stubs that - copy floating point arguments from the fp regs to the gp regs and - then jump to FNNAME. If any 32 bit function calls FNNAME, the - call should be redirected to the stub instead. If no 32 bit - function calls FNNAME, the stub should be discarded. We need to - consider any reference to the function, not just a call, because - if the address of the function is taken we will need the stub, - since the address might be passed to a 32 bit function. - - Section names that look like .mips16.call.FNNAME contain stubs - that copy floating point arguments from the gp regs to the fp - regs and then jump to FNNAME. If FNNAME is a 32 bit function, - then any 16 bit function that calls FNNAME should be redirected - to the stub instead. If FNNAME is not a 32 bit function, the - stub should be discarded. - - .mips16.call.fp.FNNAME sections are similar, but contain stubs - which call FNNAME and then copy the return value from the fp regs - to the gp regs. These stubs store the return value in $18 while - calling FNNAME; any function which might call one of these stubs - must arrange to save $18 around the call. (This case is not - needed for 32 bit functions that call 16 bit functions, because - 16 bit functions always return floating point values in both - $f0/$f1 and $2/$3.) - - Note that in all cases FNNAME might be defined statically. - Therefore, FNNAME is not used literally. Instead, the relocation - information will indicate which symbol the section is for. - - We record any stubs that we find in the symbol table. */ - -#define FN_STUB ".mips16.fn." -#define CALL_STUB ".mips16.call." -#define CALL_FP_STUB ".mips16.call.fp." - -/* MIPS ELF linker hash table. */ - -struct mips_elf_link_hash_table -{ - struct elf_link_hash_table root; -#if 0 - /* We no longer use this. */ - /* String section indices for the dynamic section symbols. */ - bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES]; -#endif - /* The number of .rtproc entries. */ - bfd_size_type procedure_count; - /* The size of the .compact_rel section (if SGI_COMPAT). */ - bfd_size_type compact_rel_size; - /* This flag indicates that the value of DT_MIPS_RLD_MAP dynamic - entry is set to the address of __rld_obj_head as in Irix 5. */ - boolean use_rld_obj_head; - /* This is the value of the __rld_map or __rld_obj_head symbol. */ - bfd_vma rld_value; - /* This is set if we see any mips16 stub sections. */ - boolean mips16_stubs_seen; -}; - -/* Look up an entry in a MIPS ELF linker hash table. */ - -#define mips_elf_link_hash_lookup(table, string, create, copy, follow) \ - ((struct mips_elf_link_hash_entry *) \ - elf_link_hash_lookup (&(table)->root, (string), (create), \ - (copy), (follow))) - -/* Traverse a MIPS ELF linker hash table. */ - -#define mips_elf_link_hash_traverse(table, func, info) \ - (elf_link_hash_traverse \ - (&(table)->root, \ - (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ - (info))) - -/* Get the MIPS ELF linker hash table from a link_info structure. */ - -#define mips_elf_hash_table(p) \ - ((struct mips_elf_link_hash_table *) ((p)->hash)) - -static boolean mips_elf_output_extsym - PARAMS ((struct mips_elf_link_hash_entry *, PTR)); - -/* Create an entry in a MIPS ELF linker hash table. */ - -static struct bfd_hash_entry * -mips_elf_link_hash_newfunc (entry, table, string) - struct bfd_hash_entry *entry; - struct bfd_hash_table *table; - const char *string; -{ - struct mips_elf_link_hash_entry *ret = - (struct mips_elf_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (ret == (struct mips_elf_link_hash_entry *) NULL) - ret = ((struct mips_elf_link_hash_entry *) - bfd_hash_allocate (table, - sizeof (struct mips_elf_link_hash_entry))); - if (ret == (struct mips_elf_link_hash_entry *) NULL) - return (struct bfd_hash_entry *) ret; - - /* Call the allocation method of the superclass. */ - ret = ((struct mips_elf_link_hash_entry *) - _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - if (ret != (struct mips_elf_link_hash_entry *) NULL) - { - /* Set local fields. */ - memset (&ret->esym, 0, sizeof (EXTR)); - /* We use -2 as a marker to indicate that the information has - not been set. -1 means there is no associated ifd. */ - ret->esym.ifd = -2; - ret->possibly_dynamic_relocs = 0; - ret->min_dyn_reloc_index = 0; - ret->fn_stub = NULL; - ret->need_fn_stub = false; - ret->call_stub = NULL; - ret->call_fp_stub = NULL; - } - - return (struct bfd_hash_entry *) ret; -} - -/* Create a MIPS ELF linker hash table. */ - -struct bfd_link_hash_table * -_bfd_mips_elf_link_hash_table_create (abfd) - bfd *abfd; -{ - struct mips_elf_link_hash_table *ret; - - ret = ((struct mips_elf_link_hash_table *) - bfd_alloc (abfd, sizeof (struct mips_elf_link_hash_table))); - if (ret == (struct mips_elf_link_hash_table *) NULL) - return NULL; - - if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, - mips_elf_link_hash_newfunc)) - { - bfd_release (abfd, ret); - return NULL; - } - -#if 0 - /* We no longer use this. */ - for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++) - ret->dynsym_sec_strindex[i] = (bfd_size_type) -1; -#endif - ret->procedure_count = 0; - ret->compact_rel_size = 0; - ret->use_rld_obj_head = false; - ret->rld_value = 0; - ret->mips16_stubs_seen = false; - - return &ret->root.root; -} - -/* Hook called by the linker routine which adds symbols from an object - file. We must handle the special MIPS section numbers here. */ - -/*ARGSUSED*/ -boolean -_bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) - bfd *abfd; - struct bfd_link_info *info; - const Elf_Internal_Sym *sym; - const char **namep; - flagword *flagsp ATTRIBUTE_UNUSED; - asection **secp; - bfd_vma *valp; -{ - if (SGI_COMPAT (abfd) - && (abfd->flags & DYNAMIC) != 0 - && strcmp (*namep, "_rld_new_interface") == 0) - { - /* Skip Irix 5 rld entry name. */ - *namep = NULL; - return true; - } - - switch (sym->st_shndx) - { - case SHN_COMMON: - /* Common symbols less than the GP size are automatically - treated as SHN_MIPS_SCOMMON symbols. */ - if (sym->st_size > elf_gp_size (abfd) - || IRIX_COMPAT (abfd) == ict_irix6) - break; - /* Fall through. */ - case SHN_MIPS_SCOMMON: - *secp = bfd_make_section_old_way (abfd, ".scommon"); - (*secp)->flags |= SEC_IS_COMMON; - *valp = sym->st_size; - break; - - case SHN_MIPS_TEXT: - /* This section is used in a shared object. */ - if (mips_elf_text_section_ptr == NULL) - { - /* Initialize the section. */ - mips_elf_text_section.name = ".text"; - mips_elf_text_section.flags = SEC_NO_FLAGS; - mips_elf_text_section.output_section = NULL; - mips_elf_text_section.symbol = &mips_elf_text_symbol; - mips_elf_text_section.symbol_ptr_ptr = &mips_elf_text_symbol_ptr; - mips_elf_text_symbol.name = ".text"; - mips_elf_text_symbol.flags = BSF_SECTION_SYM | BSF_DYNAMIC; - mips_elf_text_symbol.section = &mips_elf_text_section; - mips_elf_text_symbol_ptr = &mips_elf_text_symbol; - mips_elf_text_section_ptr = &mips_elf_text_section; - } - /* This code used to do *secp = bfd_und_section_ptr if - info->shared. I don't know why, and that doesn't make sense, - so I took it out. */ - *secp = mips_elf_text_section_ptr; - break; - - case SHN_MIPS_ACOMMON: - /* Fall through. XXX Can we treat this as allocated data? */ - case SHN_MIPS_DATA: - /* This section is used in a shared object. */ - if (mips_elf_data_section_ptr == NULL) - { - /* Initialize the section. */ - mips_elf_data_section.name = ".data"; - mips_elf_data_section.flags = SEC_NO_FLAGS; - mips_elf_data_section.output_section = NULL; - mips_elf_data_section.symbol = &mips_elf_data_symbol; - mips_elf_data_section.symbol_ptr_ptr = &mips_elf_data_symbol_ptr; - mips_elf_data_symbol.name = ".data"; - mips_elf_data_symbol.flags = BSF_SECTION_SYM | BSF_DYNAMIC; - mips_elf_data_symbol.section = &mips_elf_data_section; - mips_elf_data_symbol_ptr = &mips_elf_data_symbol; - mips_elf_data_section_ptr = &mips_elf_data_section; - } - /* This code used to do *secp = bfd_und_section_ptr if - info->shared. I don't know why, and that doesn't make sense, - so I took it out. */ - *secp = mips_elf_data_section_ptr; - break; - - case SHN_MIPS_SUNDEFINED: - *secp = bfd_und_section_ptr; - break; - } - - if (SGI_COMPAT (abfd) - && ! info->shared - && info->hash->creator == abfd->xvec - && strcmp (*namep, "__rld_obj_head") == 0) - { - struct elf_link_hash_entry *h; - - /* Mark __rld_obj_head as dynamic. */ - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, *namep, BSF_GLOBAL, *secp, - (bfd_vma) *valp, (const char *) NULL, false, - get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_OBJECT; - - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - mips_elf_hash_table (info)->use_rld_obj_head = true; - } - - /* If this is a mips16 text symbol, add 1 to the value to make it - odd. This will cause something like .word SYM to come up with - the right value when it is loaded into the PC. */ - if (sym->st_other == STO_MIPS16) - ++*valp; - - return true; -} - -/* Structure used to pass information to mips_elf_output_extsym. */ - -struct extsym_info -{ - bfd *abfd; - struct bfd_link_info *info; - struct ecoff_debug_info *debug; - const struct ecoff_debug_swap *swap; - boolean failed; -}; - -/* This routine is used to write out ECOFF debugging external symbol - information. It is called via mips_elf_link_hash_traverse. The - ECOFF external symbol information must match the ELF external - symbol information. Unfortunately, at this point we don't know - whether a symbol is required by reloc information, so the two - tables may wind up being different. We must sort out the external - symbol information before we can set the final size of the .mdebug - section, and we must set the size of the .mdebug section before we - can relocate any sections, and we can't know which symbols are - required by relocation until we relocate the sections. - Fortunately, it is relatively unlikely that any symbol will be - stripped but required by a reloc. In particular, it can not happen - when generating a final executable. */ - -static boolean -mips_elf_output_extsym (h, data) - struct mips_elf_link_hash_entry *h; - PTR data; -{ - struct extsym_info *einfo = (struct extsym_info *) data; - boolean strip; - asection *sec, *output_section; - - if (h->root.indx == -2) - strip = false; - else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0) - && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 - && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0) - strip = true; - else if (einfo->info->strip == strip_all - || (einfo->info->strip == strip_some - && bfd_hash_lookup (einfo->info->keep_hash, - h->root.root.root.string, - false, false) == NULL)) - strip = true; - else - strip = false; - - if (strip) - return true; - - if (h->esym.ifd == -2) - { - h->esym.jmptbl = 0; - h->esym.cobol_main = 0; - h->esym.weakext = 0; - h->esym.reserved = 0; - h->esym.ifd = ifdNil; - h->esym.asym.value = 0; - h->esym.asym.st = stGlobal; - - if (SGI_COMPAT (einfo->abfd) - && (h->root.root.type == bfd_link_hash_undefined - || h->root.root.type == bfd_link_hash_undefweak)) - { - const char *name; - - /* Use undefined class. Also, set class and type for some - special symbols. */ - name = h->root.root.root.string; - if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0 - || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0) - { - h->esym.asym.sc = scData; - h->esym.asym.st = stLabel; - h->esym.asym.value = 0; - } - else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0) - { - h->esym.asym.sc = scAbs; - h->esym.asym.st = stLabel; - h->esym.asym.value = - mips_elf_hash_table (einfo->info)->procedure_count; - } - else if (strcmp (name, "_gp_disp") == 0) - { - h->esym.asym.sc = scAbs; - h->esym.asym.st = stLabel; - h->esym.asym.value = elf_gp (einfo->abfd); - } - else - h->esym.asym.sc = scUndefined; - } - else if (h->root.root.type != bfd_link_hash_defined - && h->root.root.type != bfd_link_hash_defweak) - h->esym.asym.sc = scAbs; - else - { - const char *name; - - sec = h->root.root.u.def.section; - output_section = sec->output_section; - - /* When making a shared library and symbol h is the one from - the another shared library, OUTPUT_SECTION may be null. */ - if (output_section == NULL) - h->esym.asym.sc = scUndefined; - else - { - name = bfd_section_name (output_section->owner, output_section); - - if (strcmp (name, ".text") == 0) - h->esym.asym.sc = scText; - else if (strcmp (name, ".data") == 0) - h->esym.asym.sc = scData; - else if (strcmp (name, ".sdata") == 0) - h->esym.asym.sc = scSData; - else if (strcmp (name, ".rodata") == 0 - || strcmp (name, ".rdata") == 0) - h->esym.asym.sc = scRData; - else if (strcmp (name, ".bss") == 0) - h->esym.asym.sc = scBss; - else if (strcmp (name, ".sbss") == 0) - h->esym.asym.sc = scSBss; - else if (strcmp (name, ".init") == 0) - h->esym.asym.sc = scInit; - else if (strcmp (name, ".fini") == 0) - h->esym.asym.sc = scFini; - else - h->esym.asym.sc = scAbs; - } - } - - h->esym.asym.reserved = 0; - h->esym.asym.index = indexNil; - } - - if (h->root.root.type == bfd_link_hash_common) - h->esym.asym.value = h->root.root.u.c.size; - else if (h->root.root.type == bfd_link_hash_defined - || h->root.root.type == bfd_link_hash_defweak) - { - if (h->esym.asym.sc == scCommon) - h->esym.asym.sc = scBss; - else if (h->esym.asym.sc == scSCommon) - h->esym.asym.sc = scSBss; - - sec = h->root.root.u.def.section; - output_section = sec->output_section; - if (output_section != NULL) - h->esym.asym.value = (h->root.root.u.def.value - + sec->output_offset - + output_section->vma); - else - h->esym.asym.value = 0; - } - else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) - { - /* Set type and value for a symbol with a function stub. */ - h->esym.asym.st = stProc; - sec = h->root.root.u.def.section; - if (sec == NULL) - h->esym.asym.value = 0; - else - { - output_section = sec->output_section; - if (output_section != NULL) - h->esym.asym.value = (h->root.plt.offset - + sec->output_offset - + output_section->vma); - else - h->esym.asym.value = 0; - } -#if 0 /* FIXME? */ - h->esym.ifd = 0; -#endif - } - - if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap, - h->root.root.root.string, - &h->esym)) - { - einfo->failed = true; - return false; - } - - return true; -} - -/* Create a runtime procedure table from the .mdebug section. */ - -static boolean -mips_elf_create_procedure_table (handle, abfd, info, s, debug) - PTR handle; - bfd *abfd; - struct bfd_link_info *info; - asection *s; - struct ecoff_debug_info *debug; -{ - const struct ecoff_debug_swap *swap; - HDRR *hdr = &debug->symbolic_header; - RPDR *rpdr, *rp; - struct rpdr_ext *erp; - PTR rtproc; - struct pdr_ext *epdr; - struct sym_ext *esym; - char *ss, **sv; - char *str; - unsigned long size, count; - unsigned long sindex; - unsigned long i; - PDR pdr; - SYMR sym; - const char *no_name_func = _("static procedure (no name)"); - - epdr = NULL; - rpdr = NULL; - esym = NULL; - ss = NULL; - sv = NULL; - - swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; - - sindex = strlen (no_name_func) + 1; - count = hdr->ipdMax; - if (count > 0) - { - size = swap->external_pdr_size; - - epdr = (struct pdr_ext *) bfd_malloc (size * count); - if (epdr == NULL) - goto error_return; - - if (! _bfd_ecoff_get_accumulated_pdr (handle, (PTR) epdr)) - goto error_return; - - size = sizeof (RPDR); - rp = rpdr = (RPDR *) bfd_malloc (size * count); - if (rpdr == NULL) - goto error_return; - - sv = (char **) bfd_malloc (sizeof (char *) * count); - if (sv == NULL) - goto error_return; - - count = hdr->isymMax; - size = swap->external_sym_size; - esym = (struct sym_ext *) bfd_malloc (size * count); - if (esym == NULL) - goto error_return; - - if (! _bfd_ecoff_get_accumulated_sym (handle, (PTR) esym)) - goto error_return; - - count = hdr->issMax; - ss = (char *) bfd_malloc (count); - if (ss == NULL) - goto error_return; - if (! _bfd_ecoff_get_accumulated_ss (handle, (PTR) ss)) - goto error_return; - - count = hdr->ipdMax; - for (i = 0; i < count; i++, rp++) - { - (*swap->swap_pdr_in) (abfd, (PTR) (epdr + i), &pdr); - (*swap->swap_sym_in) (abfd, (PTR) &esym[pdr.isym], &sym); - rp->adr = sym.value; - rp->regmask = pdr.regmask; - rp->regoffset = pdr.regoffset; - rp->fregmask = pdr.fregmask; - rp->fregoffset = pdr.fregoffset; - rp->frameoffset = pdr.frameoffset; - rp->framereg = pdr.framereg; - rp->pcreg = pdr.pcreg; - rp->irpss = sindex; - sv[i] = ss + sym.iss; - sindex += strlen (sv[i]) + 1; - } - } - - size = sizeof (struct rpdr_ext) * (count + 2) + sindex; - size = BFD_ALIGN (size, 16); - rtproc = (PTR) bfd_alloc (abfd, size); - if (rtproc == NULL) - { - mips_elf_hash_table (info)->procedure_count = 0; - goto error_return; - } - - mips_elf_hash_table (info)->procedure_count = count + 2; - - erp = (struct rpdr_ext *) rtproc; - memset (erp, 0, sizeof (struct rpdr_ext)); - erp++; - str = (char *) rtproc + sizeof (struct rpdr_ext) * (count + 2); - strcpy (str, no_name_func); - str += strlen (no_name_func) + 1; - for (i = 0; i < count; i++) - { - ecoff_swap_rpdr_out (abfd, rpdr + i, erp + i); - strcpy (str, sv[i]); - str += strlen (sv[i]) + 1; - } - ecoff_put_off (abfd, (bfd_vma) -1, (bfd_byte *) (erp + count)->p_adr); - - /* Set the size and contents of .rtproc section. */ - s->_raw_size = size; - s->contents = (bfd_byte *) rtproc; - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - s->link_order_head = (struct bfd_link_order *) NULL; - - if (epdr != NULL) - free (epdr); - if (rpdr != NULL) - free (rpdr); - if (esym != NULL) - free (esym); - if (ss != NULL) - free (ss); - if (sv != NULL) - free (sv); - - return true; - - error_return: - if (epdr != NULL) - free (epdr); - if (rpdr != NULL) - free (rpdr); - if (esym != NULL) - free (esym); - if (ss != NULL) - free (ss); - if (sv != NULL) - free (sv); - return false; -} - -/* A comparison routine used to sort .gptab entries. */ - -static int -gptab_compare (p1, p2) - const PTR p1; - const PTR p2; -{ - const Elf32_gptab *a1 = (const Elf32_gptab *) p1; - const Elf32_gptab *a2 = (const Elf32_gptab *) p2; - - return a1->gt_entry.gt_g_value - a2->gt_entry.gt_g_value; -} - -/* We need to use a special link routine to handle the .reginfo and - the .mdebug sections. We need to merge all instances of these - sections together, not write them all out sequentially. */ - -boolean -_bfd_mips_elf_final_link (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - asection **secpp; - asection *o; - struct bfd_link_order *p; - asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec; - asection *rtproc_sec; - Elf32_RegInfo reginfo; - struct ecoff_debug_info debug; - const struct ecoff_debug_swap *swap - = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; - HDRR *symhdr = &debug.symbolic_header; - PTR mdebug_handle = NULL; - - /* If all the things we linked together were PIC, but we're - producing an executable (rather than a shared object), then the - resulting file is CPIC (i.e., it calls PIC code.) */ - if (!info->shared - && !info->relocateable - && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC) - { - elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC; - elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC; - } - - /* We'd carefully arranged the dynamic symbol indices, and then the - generic size_dynamic_sections renumbered them out from under us. - Rather than trying somehow to prevent the renumbering, just do - the sort again. */ - if (elf_hash_table (info)->dynamic_sections_created) - { - bfd *dynobj; - asection *got; - struct mips_got_info *g; - - /* When we resort, we must tell mips_elf_sort_hash_table what - the lowest index it may use is. That's the number of section - symbols we're going to add. The generic ELF linker only - adds these symbols when building a shared object. Note that - we count the sections after (possibly) removing the .options - section above. */ - if (!mips_elf_sort_hash_table (info, (info->shared - ? bfd_count_sections (abfd) + 1 - : 1))) - return false; - - /* Make sure we didn't grow the global .got region. */ - dynobj = elf_hash_table (info)->dynobj; - got = bfd_get_section_by_name (dynobj, ".got"); - g = (struct mips_got_info *) elf_section_data (got)->tdata; - - if (g->global_gotsym != NULL) - BFD_ASSERT ((elf_hash_table (info)->dynsymcount - - g->global_gotsym->dynindx) - <= g->global_gotno); - } - - /* On IRIX5, we omit the .options section. On IRIX6, however, we - include it, even though we don't process it quite right. (Some - entries are supposed to be merged.) Empirically, we seem to be - better off including it then not. */ - if (IRIX_COMPAT (abfd) == ict_irix5) - for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next) - { - if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0) - { - for (p = (*secpp)->link_order_head; p != NULL; p = p->next) - if (p->type == bfd_indirect_link_order) - p->u.indirect.section->flags &=~ SEC_HAS_CONTENTS; - (*secpp)->link_order_head = NULL; - *secpp = (*secpp)->next; - --abfd->section_count; - - break; - } - } - - /* Get a value for the GP register. */ - if (elf_gp (abfd) == 0) - { - struct bfd_link_hash_entry *h; - - h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); - if (h != (struct bfd_link_hash_entry *) NULL - && h->type == bfd_link_hash_defined) - elf_gp (abfd) = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - else if (info->relocateable) - { - bfd_vma lo; - - /* Find the GP-relative section with the lowest offset. */ - lo = (bfd_vma) -1; - for (o = abfd->sections; o != (asection *) NULL; o = o->next) - if (o->vma < lo - && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL)) - lo = o->vma; - - /* And calculate GP relative to that. */ - elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd); - } - else - { - /* If the relocate_section function needs to do a reloc - involving the GP value, it should make a reloc_dangerous - callback to warn that GP is not defined. */ - } - } - - /* Go through the sections and collect the .reginfo and .mdebug - information. */ - reginfo_sec = NULL; - mdebug_sec = NULL; - gptab_data_sec = NULL; - gptab_bss_sec = NULL; - for (o = abfd->sections; o != (asection *) NULL; o = o->next) - { - if (strcmp (o->name, ".reginfo") == 0) - { - memset (®info, 0, sizeof reginfo); - - /* We have found the .reginfo section in the output file. - Look through all the link_orders comprising it and merge - the information together. */ - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - bfd *input_bfd; - Elf32_External_RegInfo ext; - Elf32_RegInfo sub; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - input_bfd = input_section->owner; - - /* The linker emulation code has probably clobbered the - size to be zero bytes. */ - if (input_section->_raw_size == 0) - input_section->_raw_size = sizeof (Elf32_External_RegInfo); - - if (! bfd_get_section_contents (input_bfd, input_section, - (PTR) &ext, - (file_ptr) 0, - sizeof ext)) - return false; - - bfd_mips_elf32_swap_reginfo_in (input_bfd, &ext, &sub); - - reginfo.ri_gprmask |= sub.ri_gprmask; - reginfo.ri_cprmask[0] |= sub.ri_cprmask[0]; - reginfo.ri_cprmask[1] |= sub.ri_cprmask[1]; - reginfo.ri_cprmask[2] |= sub.ri_cprmask[2]; - reginfo.ri_cprmask[3] |= sub.ri_cprmask[3]; - - /* ri_gp_value is set by the function - mips_elf32_section_processing when the section is - finally written out. */ - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* Size has been set in mips_elf_always_size_sections */ - BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo)); - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - - reginfo_sec = o; - } - - if (strcmp (o->name, ".mdebug") == 0) - { - struct extsym_info einfo; - - /* We have found the .mdebug section in the output file. - Look through all the link_orders comprising it and merge - the information together. */ - symhdr->magic = swap->sym_magic; - /* FIXME: What should the version stamp be? */ - symhdr->vstamp = 0; - symhdr->ilineMax = 0; - symhdr->cbLine = 0; - symhdr->idnMax = 0; - symhdr->ipdMax = 0; - symhdr->isymMax = 0; - symhdr->ioptMax = 0; - symhdr->iauxMax = 0; - symhdr->issMax = 0; - symhdr->issExtMax = 0; - symhdr->ifdMax = 0; - symhdr->crfd = 0; - symhdr->iextMax = 0; - - /* We accumulate the debugging information itself in the - debug_info structure. */ - debug.line = NULL; - debug.external_dnr = NULL; - debug.external_pdr = NULL; - debug.external_sym = NULL; - debug.external_opt = NULL; - debug.external_aux = NULL; - debug.ss = NULL; - debug.ssext = debug.ssext_end = NULL; - debug.external_fdr = NULL; - debug.external_rfd = NULL; - debug.external_ext = debug.external_ext_end = NULL; - - mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info); - if (mdebug_handle == (PTR) NULL) - return false; - - if (SGI_COMPAT (abfd)) - { - asection *s; - EXTR esym; - bfd_vma last; - unsigned int i; - static const char * const name[] = - { ".text", ".init", ".fini", ".data", - ".rodata", ".sdata", ".sbss", ".bss" }; - static const int sc[] = { scText, scInit, scFini, scData, - scRData, scSData, scSBss, scBss }; - - esym.jmptbl = 0; - esym.cobol_main = 0; - esym.weakext = 0; - esym.reserved = 0; - esym.ifd = ifdNil; - esym.asym.iss = issNil; - esym.asym.st = stLocal; - esym.asym.reserved = 0; - esym.asym.index = indexNil; - last = 0; - for (i = 0; i < 8; i++) - { - esym.asym.sc = sc[i]; - s = bfd_get_section_by_name (abfd, name[i]); - if (s != NULL) - { - esym.asym.value = s->vma; - last = s->vma + s->_raw_size; - } - else - esym.asym.value = last; - - if (! bfd_ecoff_debug_one_external (abfd, &debug, swap, - name[i], &esym)) - return false; - } - } - - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - bfd *input_bfd; - const struct ecoff_debug_swap *input_swap; - struct ecoff_debug_info input_debug; - char *eraw_src; - char *eraw_end; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - input_bfd = input_section->owner; - - if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour - || (get_elf_backend_data (input_bfd) - ->elf_backend_ecoff_debug_swap) == NULL) - { - /* I don't know what a non MIPS ELF bfd would be - doing with a .mdebug section, but I don't really - want to deal with it. */ - continue; - } - - input_swap = (get_elf_backend_data (input_bfd) - ->elf_backend_ecoff_debug_swap); - - BFD_ASSERT (p->size == input_section->_raw_size); - - /* The ECOFF linking code expects that we have already - read in the debugging information and set up an - ecoff_debug_info structure, so we do that now. */ - if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section, - &input_debug)) - return false; - - if (! (bfd_ecoff_debug_accumulate - (mdebug_handle, abfd, &debug, swap, input_bfd, - &input_debug, input_swap, info))) - return false; - - /* Loop through the external symbols. For each one with - interesting information, try to find the symbol in - the linker global hash table and save the information - for the output external symbols. */ - eraw_src = input_debug.external_ext; - eraw_end = (eraw_src - + (input_debug.symbolic_header.iextMax - * input_swap->external_ext_size)); - for (; - eraw_src < eraw_end; - eraw_src += input_swap->external_ext_size) - { - EXTR ext; - const char *name; - struct mips_elf_link_hash_entry *h; - - (*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext); - if (ext.asym.sc == scNil - || ext.asym.sc == scUndefined - || ext.asym.sc == scSUndefined) - continue; - - name = input_debug.ssext + ext.asym.iss; - h = mips_elf_link_hash_lookup (mips_elf_hash_table (info), - name, false, false, true); - if (h == NULL || h->esym.ifd != -2) - continue; - - if (ext.ifd != -1) - { - BFD_ASSERT (ext.ifd - < input_debug.symbolic_header.ifdMax); - ext.ifd = input_debug.ifdmap[ext.ifd]; - } - - h->esym = ext; - } - - /* Free up the information we just read. */ - free (input_debug.line); - free (input_debug.external_dnr); - free (input_debug.external_pdr); - free (input_debug.external_sym); - free (input_debug.external_opt); - free (input_debug.external_aux); - free (input_debug.ss); - free (input_debug.ssext); - free (input_debug.external_fdr); - free (input_debug.external_rfd); - free (input_debug.external_ext); - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - if (SGI_COMPAT (abfd) && info->shared) - { - /* Create .rtproc section. */ - rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc"); - if (rtproc_sec == NULL) - { - flagword flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED | SEC_READONLY); - - rtproc_sec = bfd_make_section (abfd, ".rtproc"); - if (rtproc_sec == NULL - || ! bfd_set_section_flags (abfd, rtproc_sec, flags) - || ! bfd_set_section_alignment (abfd, rtproc_sec, 4)) - return false; - } - - if (! mips_elf_create_procedure_table (mdebug_handle, abfd, - info, rtproc_sec, &debug)) - return false; - } - - /* Build the external symbol information. */ - einfo.abfd = abfd; - einfo.info = info; - einfo.debug = &debug; - einfo.swap = swap; - einfo.failed = false; - mips_elf_link_hash_traverse (mips_elf_hash_table (info), - mips_elf_output_extsym, - (PTR) &einfo); - if (einfo.failed) - return false; - - /* Set the size of the .mdebug section. */ - o->_raw_size = bfd_ecoff_debug_size (abfd, &debug, swap); - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - - mdebug_sec = o; - } - - if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0) - { - const char *subname; - unsigned int c; - Elf32_gptab *tab; - Elf32_External_gptab *ext_tab; - unsigned int i; - - /* The .gptab.sdata and .gptab.sbss sections hold - information describing how the small data area would - change depending upon the -G switch. These sections - not used in executables files. */ - if (! info->relocateable) - { - asection **secpp; - - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* Skip this section later on (I don't think this - currently matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - - /* Really remove the section. */ - for (secpp = &abfd->sections; - *secpp != o; - secpp = &(*secpp)->next) - ; - *secpp = (*secpp)->next; - --abfd->section_count; - - continue; - } - - /* There is one gptab for initialized data, and one for - uninitialized data. */ - if (strcmp (o->name, ".gptab.sdata") == 0) - gptab_data_sec = o; - else if (strcmp (o->name, ".gptab.sbss") == 0) - gptab_bss_sec = o; - else - { - (*_bfd_error_handler) - (_("%s: illegal section name `%s'"), - bfd_get_filename (abfd), o->name); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - - /* The linker script always combines .gptab.data and - .gptab.sdata into .gptab.sdata, and likewise for - .gptab.bss and .gptab.sbss. It is possible that there is - no .sdata or .sbss section in the output file, in which - case we must change the name of the output section. */ - subname = o->name + sizeof ".gptab" - 1; - if (bfd_get_section_by_name (abfd, subname) == NULL) - { - if (o == gptab_data_sec) - o->name = ".gptab.data"; - else - o->name = ".gptab.bss"; - subname = o->name + sizeof ".gptab" - 1; - BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL); - } - - /* Set up the first entry. */ - c = 1; - tab = (Elf32_gptab *) bfd_malloc (c * sizeof (Elf32_gptab)); - if (tab == NULL) - return false; - tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd); - tab[0].gt_header.gt_unused = 0; - - /* Combine the input sections. */ - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - bfd *input_bfd; - bfd_size_type size; - unsigned long last; - bfd_size_type gpentry; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - input_bfd = input_section->owner; - - /* Combine the gptab entries for this input section one - by one. We know that the input gptab entries are - sorted by ascending -G value. */ - size = bfd_section_size (input_bfd, input_section); - last = 0; - for (gpentry = sizeof (Elf32_External_gptab); - gpentry < size; - gpentry += sizeof (Elf32_External_gptab)) - { - Elf32_External_gptab ext_gptab; - Elf32_gptab int_gptab; - unsigned long val; - unsigned long add; - boolean exact; - unsigned int look; - - if (! (bfd_get_section_contents - (input_bfd, input_section, (PTR) &ext_gptab, - gpentry, sizeof (Elf32_External_gptab)))) - { - free (tab); - return false; - } - - bfd_mips_elf32_swap_gptab_in (input_bfd, &ext_gptab, - &int_gptab); - val = int_gptab.gt_entry.gt_g_value; - add = int_gptab.gt_entry.gt_bytes - last; - - exact = false; - for (look = 1; look < c; look++) - { - if (tab[look].gt_entry.gt_g_value >= val) - tab[look].gt_entry.gt_bytes += add; - - if (tab[look].gt_entry.gt_g_value == val) - exact = true; - } - - if (! exact) - { - Elf32_gptab *new_tab; - unsigned int max; - - /* We need a new table entry. */ - new_tab = ((Elf32_gptab *) - bfd_realloc ((PTR) tab, - (c + 1) * sizeof (Elf32_gptab))); - if (new_tab == NULL) - { - free (tab); - return false; - } - tab = new_tab; - tab[c].gt_entry.gt_g_value = val; - tab[c].gt_entry.gt_bytes = add; - - /* Merge in the size for the next smallest -G - value, since that will be implied by this new - value. */ - max = 0; - for (look = 1; look < c; look++) - { - if (tab[look].gt_entry.gt_g_value < val - && (max == 0 - || (tab[look].gt_entry.gt_g_value - > tab[max].gt_entry.gt_g_value))) - max = look; - } - if (max != 0) - tab[c].gt_entry.gt_bytes += - tab[max].gt_entry.gt_bytes; - - ++c; - } - - last = int_gptab.gt_entry.gt_bytes; - } - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* The table must be sorted by -G value. */ - if (c > 2) - qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare); - - /* Swap out the table. */ - ext_tab = ((Elf32_External_gptab *) - bfd_alloc (abfd, c * sizeof (Elf32_External_gptab))); - if (ext_tab == NULL) - { - free (tab); - return false; - } - - for (i = 0; i < c; i++) - bfd_mips_elf32_swap_gptab_out (abfd, tab + i, ext_tab + i); - free (tab); - - o->_raw_size = c * sizeof (Elf32_External_gptab); - o->contents = (bfd_byte *) ext_tab; - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - } - } - - /* Invoke the regular ELF backend linker to do all the work. */ - if (ABI_64_P (abfd)) - { -#ifdef BFD64 - if (!bfd_elf64_bfd_final_link (abfd, info)) - return false; -#else - abort (); - return false; -#endif /* BFD64 */ - } - else if (!bfd_elf32_bfd_final_link (abfd, info)) - return false; - - /* Now write out the computed sections. */ - - if (reginfo_sec != (asection *) NULL) - { - Elf32_External_RegInfo ext; - - bfd_mips_elf32_swap_reginfo_out (abfd, ®info, &ext); - if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext, - (file_ptr) 0, sizeof ext)) - return false; - } - - if (mdebug_sec != (asection *) NULL) - { - BFD_ASSERT (abfd->output_has_begun); - if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug, - swap, info, - mdebug_sec->filepos)) - return false; - - bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info); - } - - if (gptab_data_sec != (asection *) NULL) - { - if (! bfd_set_section_contents (abfd, gptab_data_sec, - gptab_data_sec->contents, - (file_ptr) 0, - gptab_data_sec->_raw_size)) - return false; - } - - if (gptab_bss_sec != (asection *) NULL) - { - if (! bfd_set_section_contents (abfd, gptab_bss_sec, - gptab_bss_sec->contents, - (file_ptr) 0, - gptab_bss_sec->_raw_size)) - return false; - } - - if (SGI_COMPAT (abfd)) - { - rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc"); - if (rtproc_sec != NULL) - { - if (! bfd_set_section_contents (abfd, rtproc_sec, - rtproc_sec->contents, - (file_ptr) 0, - rtproc_sec->_raw_size)) - return false; - } - } - - return true; -} - -/* Returns the GOT section for ABFD. */ - -static asection * -mips_elf_got_section (abfd) - bfd *abfd; -{ - return bfd_get_section_by_name (abfd, ".got"); -} - -/* Returns the GOT information associated with the link indicated by - INFO. If SGOTP is non-NULL, it is filled in with the GOT - section. */ - -static struct mips_got_info * -mips_elf_got_info (abfd, sgotp) - bfd *abfd; - asection **sgotp; -{ - asection *sgot; - struct mips_got_info *g; - - sgot = mips_elf_got_section (abfd); - BFD_ASSERT (sgot != NULL); - BFD_ASSERT (elf_section_data (sgot) != NULL); - g = (struct mips_got_info *) elf_section_data (sgot)->tdata; - BFD_ASSERT (g != NULL); - - if (sgotp) - *sgotp = sgot; - return g; -} - -/* Return whether a relocation is against a local symbol. */ - -static boolean -mips_elf_local_relocation_p (input_bfd, relocation, local_sections) - bfd *input_bfd; - const Elf_Internal_Rela *relocation; - asection **local_sections; -{ - unsigned long r_symndx; - Elf_Internal_Shdr *symtab_hdr; - - r_symndx = ELF32_R_SYM (relocation->r_info); - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - if (! elf_bad_symtab (input_bfd)) - return r_symndx < symtab_hdr->sh_info; - else - { - /* The symbol table does not follow the rule that local symbols - must come before globals. */ - return local_sections[r_symndx] != NULL; - } -} - -/* Sign-extend VALUE, which has the indicated number of BITS. */ - -static bfd_vma -mips_elf_sign_extend (value, bits) - bfd_vma value; - int bits; -{ - if (value & ((bfd_vma)1 << (bits - 1))) - /* VALUE is negative. */ - value |= ((bfd_vma) - 1) << bits; - - return value; -} - -/* Return non-zero if the indicated VALUE has overflowed the maximum - range expressable by a signed number with the indicated number of - BITS. */ - -static boolean -mips_elf_overflow_p (value, bits) - bfd_vma value; - int bits; -{ - bfd_signed_vma svalue = (bfd_signed_vma) value; - - if (svalue > (1 << (bits - 1)) - 1) - /* The value is too big. */ - return true; - else if (svalue < -(1 << (bits - 1))) - /* The value is too small. */ - return true; - - /* All is well. */ - return false; -} - -/* Calculate the %high function. */ - -static bfd_vma -mips_elf_high (value) - bfd_vma value; -{ - return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff; -} - -/* Calculate the %higher function. */ - -static bfd_vma -mips_elf_higher (value) - bfd_vma value ATTRIBUTE_UNUSED; -{ -#ifdef BFD64 - return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff; -#else - abort (); - return (bfd_vma) -1; -#endif -} - -/* Calculate the %highest function. */ - -static bfd_vma -mips_elf_highest (value) - bfd_vma value ATTRIBUTE_UNUSED; -{ -#ifdef BFD64 - return ((value + (bfd_vma) 0x800080008000) >> 48) & 0xffff; -#else - abort (); - return (bfd_vma) -1; -#endif -} - -/* Returns the GOT index for the global symbol indicated by H. */ - -static bfd_vma -mips_elf_global_got_index (abfd, h) - bfd *abfd; - struct elf_link_hash_entry *h; -{ - bfd_vma index; - asection *sgot; - struct mips_got_info *g; - - g = mips_elf_got_info (abfd, &sgot); - - /* Once we determine the global GOT entry with the lowest dynamic - symbol table index, we must put all dynamic symbols with greater - indices into the GOT. That makes it easy to calculate the GOT - offset. */ - BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx); - index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno) - * MIPS_ELF_GOT_SIZE (abfd)); - BFD_ASSERT (index < sgot->_raw_size); - - return index; -} - -/* Returns the offset for the entry at the INDEXth position - in the GOT. */ - -static bfd_vma -mips_elf_got_offset_from_index (dynobj, output_bfd, index) - bfd *dynobj; - bfd *output_bfd; - bfd_vma index; -{ - asection *sgot; - bfd_vma gp; - - sgot = mips_elf_got_section (dynobj); - gp = _bfd_get_gp_value (output_bfd); - return (sgot->output_section->vma + sgot->output_offset + index - - gp); -} - -/* If H is a symbol that needs a global GOT entry, but has a dynamic - symbol table index lower than any we've seen to date, record it for - posterity. */ - -static boolean -mips_elf_record_global_got_symbol (h, info, g) - struct elf_link_hash_entry *h; - struct bfd_link_info *info; - struct mips_got_info *g ATTRIBUTE_UNUSED; -{ - /* A global symbol in the GOT must also be in the dynamic symbol - table. */ - if (h->dynindx == -1 - && !bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - /* If we've already marked this entry as need GOT space, we don't - need to do it again. */ - if (h->got.offset != (bfd_vma) - 1) - return true; - - /* By setting this to a value other than -1, we are indicating that - there needs to be a GOT entry for H. */ - h->got.offset = 0; - - return true; -} - -/* This structure is passed to mips_elf_sort_hash_table_f when sorting - the dynamic symbols. */ - -struct mips_elf_hash_sort_data -{ - /* The symbol in the global GOT with the lowest dynamic symbol table - index. */ - struct elf_link_hash_entry *low; - /* The least dynamic symbol table index corresponding to a symbol - with a GOT entry. */ - long min_got_dynindx; - /* The greatest dynamic symbol table index not corresponding to a - symbol without a GOT entry. */ - long max_non_got_dynindx; -}; - -/* If H needs a GOT entry, assign it the highest available dynamic - index. Otherwise, assign it the lowest available dynamic - index. */ - -static boolean -mips_elf_sort_hash_table_f (h, data) - struct mips_elf_link_hash_entry *h; - PTR data; -{ - struct mips_elf_hash_sort_data *hsd - = (struct mips_elf_hash_sort_data *) data; - - /* Symbols without dynamic symbol table entries aren't interesting - at all. */ - if (h->root.dynindx == -1) - return true; - - if (h->root.got.offset != 0) - h->root.dynindx = hsd->max_non_got_dynindx++; - else - { - h->root.dynindx = --hsd->min_got_dynindx; - hsd->low = (struct elf_link_hash_entry *) h; - } - - return true; -} - -/* Sort the dynamic symbol table so that symbols that need GOT entries - appear towards the end. This reduces the amount of GOT space - required. MAX_LOCAL is used to set the number of local symbols - known to be in the dynamic symbol table. During - mips_elf_size_dynamic_sections, this value is 1. Afterward, the - section symbols are added and the count is higher. */ - -static boolean -mips_elf_sort_hash_table (info, max_local) - struct bfd_link_info *info; - unsigned long max_local; -{ - struct mips_elf_hash_sort_data hsd; - struct mips_got_info *g; - bfd *dynobj; - - dynobj = elf_hash_table (info)->dynobj; - - hsd.low = NULL; - hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount; - hsd.max_non_got_dynindx = max_local; - mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *) - elf_hash_table (info)), - mips_elf_sort_hash_table_f, - &hsd); - - /* There shoud have been enough room in the symbol table to - accomodate both the GOT and non-GOT symbols. */ - BFD_ASSERT (hsd.min_got_dynindx == hsd.max_non_got_dynindx); - - /* Now we know which dynamic symbol has the lowest dynamic symbol - table index in the GOT. */ - g = mips_elf_got_info (dynobj, NULL); - g->global_gotsym = hsd.low; - - return true; -} - -/* Create a local GOT entry for VALUE. Return the index of the entry, - or -1 if it could not be created. */ - -static bfd_vma -mips_elf_create_local_got_entry (abfd, g, sgot, value) - bfd *abfd; - struct mips_got_info *g; - asection *sgot; - bfd_vma value; -{ - if (g->assigned_gotno >= g->local_gotno) - { - /* We didn't allocate enough space in the GOT. */ - (*_bfd_error_handler) - (_("not enough GOT space for local GOT entries")); - bfd_set_error (bfd_error_bad_value); - return (bfd_vma) -1; - } - - MIPS_ELF_PUT_WORD (abfd, value, - (sgot->contents - + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno)); - return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++; -} - -/* Returns the GOT offset at which the indicated address can be found. - If there is not yet a GOT entry for this value, create one. Returns - -1 if no satisfactory GOT offset can be found. */ - -static bfd_vma -mips_elf_local_got_index (abfd, info, value) - bfd *abfd; - struct bfd_link_info *info; - bfd_vma value; -{ - asection *sgot; - struct mips_got_info *g; - bfd_byte *entry; - - g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot); - - /* Look to see if we already have an appropriate entry. */ - for (entry = (sgot->contents - + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO); - entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno; - entry += MIPS_ELF_GOT_SIZE (abfd)) - { - bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry); - if (address == value) - return entry - sgot->contents; - } - - return mips_elf_create_local_got_entry (abfd, g, sgot, value); -} - -/* Find a GOT entry that is within 32KB of the VALUE. These entries - are supposed to be placed at small offsets in the GOT, i.e., - within 32KB of GP. Return the index into the GOT for this page, - and store the offset from this entry to the desired address in - OFFSETP, if it is non-NULL. */ - -static bfd_vma -mips_elf_got_page (abfd, info, value, offsetp) - bfd *abfd; - struct bfd_link_info *info; - bfd_vma value; - bfd_vma *offsetp; -{ - asection *sgot; - struct mips_got_info *g; - bfd_byte *entry; - bfd_byte *last_entry; - bfd_vma index = 0; - bfd_vma address; - - g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot); - - /* Look to see if we aleady have an appropriate entry. */ - last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno; - for (entry = (sgot->contents - + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO); - entry != last_entry; - entry += MIPS_ELF_GOT_SIZE (abfd)) - { - address = MIPS_ELF_GET_WORD (abfd, entry); - - if (!mips_elf_overflow_p (value - address, 16)) - { - /* This entry will serve as the page pointer. We can add a - 16-bit number to it to get the actual address. */ - index = entry - sgot->contents; - break; - } - } - - /* If we didn't have an appropriate entry, we create one now. */ - if (entry == last_entry) - index = mips_elf_create_local_got_entry (abfd, g, sgot, value); - - if (offsetp) - { - address = MIPS_ELF_GET_WORD (abfd, entry); - *offsetp = value - address; - } - - return index; -} - -/* Find a GOT entry whose higher-order 16 bits are the same as those - for value. Return the index into the GOT for this entry. */ - -static bfd_vma -mips_elf_got16_entry (abfd, info, value) - bfd *abfd; - struct bfd_link_info *info; - bfd_vma value; -{ - asection *sgot; - struct mips_got_info *g; - bfd_byte *entry; - bfd_byte *last_entry; - bfd_vma index = 0; - bfd_vma address; - - /* Although the ABI says that it is "the high-order 16 bits" that we - want, it is really the %high value. The complete value is - calculated with a `addiu' of a LO16 relocation, just as with a - HI16/LO16 pair. */ - value = mips_elf_high (value) << 16; - g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot); - - /* Look to see if we already have an appropriate entry. */ - last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno; - for (entry = (sgot->contents - + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO); - entry != last_entry; - entry += MIPS_ELF_GOT_SIZE (abfd)) - { - address = MIPS_ELF_GET_WORD (abfd, entry); - if ((address & 0xffff0000) == value) - { - /* This entry has the right high-order 16 bits. */ - index = entry - sgot->contents; - break; - } - } - - /* If we didn't have an appropriate entry, we create one now. */ - if (entry == last_entry) - index = mips_elf_create_local_got_entry (abfd, g, sgot, value); - - return index; -} - -/* Returns the first relocation of type r_type found, beginning with - RELOCATION. RELEND is one-past-the-end of the relocation table. */ - -static const Elf_Internal_Rela * -mips_elf_next_relocation (r_type, relocation, relend) - unsigned int r_type; - const Elf_Internal_Rela *relocation; - const Elf_Internal_Rela *relend; -{ - /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be - immediately following. However, for the IRIX6 ABI, the next - relocation may be a composed relocation consisting of several - relocations for the same address. In that case, the R_MIPS_LO16 - relocation may occur as one of these. We permit a similar - extension in general, as that is useful for GCC. */ - while (relocation < relend) - { - if (ELF32_R_TYPE (relocation->r_info) == r_type) - return relocation; - - ++relocation; - } - - /* We didn't find it. */ - bfd_set_error (bfd_error_bad_value); - return NULL; -} - -/* Create a rel.dyn relocation for the dynamic linker to resolve. REL - is the original relocation, which is now being transformed into a - dyanmic relocation. The ADDENDP is adjusted if necessary; the - caller should store the result in place of the original addend. */ - -static boolean -mips_elf_create_dynamic_relocation (output_bfd, info, rel, h, sec, - symbol, addendp, input_section) - bfd *output_bfd; - struct bfd_link_info *info; - const Elf_Internal_Rela *rel; - struct mips_elf_link_hash_entry *h; - asection *sec; - bfd_vma symbol; - bfd_vma *addendp; - asection *input_section; -{ - Elf_Internal_Rel outrel; - boolean skip; - asection *sreloc; - bfd *dynobj; - int r_type; - - r_type = ELF32_R_TYPE (rel->r_info); - dynobj = elf_hash_table (info)->dynobj; - sreloc - = bfd_get_section_by_name (dynobj, - MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)); - BFD_ASSERT (sreloc != NULL); - - skip = false; - - /* We begin by assuming that the offset for the dynamic relocation - is the same as for the original relocation. We'll adjust this - later to reflect the correct output offsets. */ - if (elf_section_data (input_section)->stab_info == NULL) - outrel.r_offset = rel->r_offset; - else - { - /* Except that in a stab section things are more complex. - Because we compress stab information, the offset given in the - relocation may not be the one we want; we must let the stabs - machinery tell us the offset. */ - outrel.r_offset - = (_bfd_stab_section_offset - (output_bfd, &elf_hash_table (info)->stab_info, - input_section, - &elf_section_data (input_section)->stab_info, - rel->r_offset)); - /* If we didn't need the relocation at all, this value will be - -1. */ - if (outrel.r_offset == (bfd_vma) -1) - skip = true; - } - - /* If we've decided to skip this relocation, just output an emtpy - record. Note that R_MIPS_NONE == 0, so that this call to memset - is a way of setting R_TYPE to R_MIPS_NONE. */ - if (skip) - memset (&outrel, 0, sizeof (outrel)); - else - { - long indx; - bfd_vma section_offset; - - /* We must now calculate the dynamic symbol table index to use - in the relocation. */ - if (h != NULL - && (! info->symbolic || (h->root.elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0)) - { - indx = h->root.dynindx; - BFD_ASSERT (indx != -1); - } - else - { - if (sec != NULL && bfd_is_abs_section (sec)) - indx = 0; - else if (sec == NULL || sec->owner == NULL) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - else - { - indx = elf_section_data (sec->output_section)->dynindx; - if (indx == 0) - abort (); - } - - /* Figure out how far the target of the relocation is from - the beginning of its section. */ - section_offset = symbol - sec->output_section->vma; - /* The relocation we're building is section-relative. - Therefore, the original addend must be adjusted by the - section offset. */ - *addendp += symbol - sec->output_section->vma; - /* Now, the relocation is just against the section. */ - symbol = sec->output_section->vma; - } - - /* If the relocation was previously an absolute relocation, we - must adjust it by the value we give it in the dynamic symbol - table. */ - if (r_type != R_MIPS_REL32) - *addendp += symbol; - - /* The relocation is always an REL32 relocation because we don't - know where the shared library will wind up at load-time. */ - outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32); - - /* Adjust the output offset of the relocation to reference the - correct location in the output file. */ - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - } - - /* Put the relocation back out. We have to use the special - relocation outputter in the 64-bit case since the 64-bit - relocation format is non-standard. */ - if (ABI_64_P (output_bfd)) - { - (*get_elf_backend_data (output_bfd)->s->swap_reloc_out) - (output_bfd, &outrel, - (sreloc->contents - + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel))); - } - else - bfd_elf32_swap_reloc_out (output_bfd, &outrel, - (((Elf32_External_Rel *) - sreloc->contents) - + sreloc->reloc_count)); - - /* Record the index of the first relocation referencing H. This - information is later emitted in the .msym section. */ - if (h != NULL - && (h->min_dyn_reloc_index == 0 - || sreloc->reloc_count < h->min_dyn_reloc_index)) - h->min_dyn_reloc_index = sreloc->reloc_count; - - /* We've now added another relocation. */ - ++sreloc->reloc_count; - - /* Make sure the output section is writable. The dynamic linker - will be writing to it. */ - elf_section_data (input_section->output_section)->this_hdr.sh_flags - |= SHF_WRITE; - - /* On IRIX5, make an entry of compact relocation info. */ - if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5) - { - asection* scpt = bfd_get_section_by_name (dynobj, ".compact_rel"); - bfd_byte *cr; - - if (scpt) - { - Elf32_crinfo cptrel; - - mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG); - cptrel.vaddr = (rel->r_offset - + input_section->output_section->vma - + input_section->output_offset); - if (r_type == R_MIPS_REL32) - mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32); - else - mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD); - mips_elf_set_cr_dist2to (cptrel, 0); - cptrel.konst = *addendp; - - cr = (scpt->contents - + sizeof (Elf32_External_compact_rel)); - bfd_elf32_swap_crinfo_out (output_bfd, &cptrel, - ((Elf32_External_crinfo *) cr - + scpt->reloc_count)); - ++scpt->reloc_count; - } - } - - return true; -} - -/* Calculate the value produced by the RELOCATION (which comes from - the INPUT_BFD). The ADDEND is the addend to use for this - RELOCATION; RELOCATION->R_ADDEND is ignored. - - The result of the relocation calculation is stored in VALUEP. - REQUIRE_JALXP indicates whether or not the opcode used with this - relocation must be JALX. - - This function returns bfd_reloc_continue if the caller need take no - further action regarding this relocation, bfd_reloc_notsupported if - something goes dramatically wrong, bfd_reloc_overflow if an - overflow occurs, and bfd_reloc_ok to indicate success. */ - -static bfd_reloc_status_type -mips_elf_calculate_relocation (abfd, - input_bfd, - input_section, - info, - relocation, - addend, - howto, - local_syms, - local_sections, - valuep, - namep, - require_jalxp) - bfd *abfd; - bfd *input_bfd; - asection *input_section; - struct bfd_link_info *info; - const Elf_Internal_Rela *relocation; - bfd_vma addend; - reloc_howto_type *howto; - Elf_Internal_Sym *local_syms; - asection **local_sections; - bfd_vma *valuep; - const char **namep; - boolean *require_jalxp; -{ - /* The eventual value we will return. */ - bfd_vma value; - /* The address of the symbol against which the relocation is - occurring. */ - bfd_vma symbol = 0; - /* The final GP value to be used for the relocatable, executable, or - shared object file being produced. */ - bfd_vma gp = (bfd_vma) - 1; - /* The place (section offset or address) of the storage unit being - relocated. */ - bfd_vma p; - /* The value of GP used to create the relocatable object. */ - bfd_vma gp0 = (bfd_vma) - 1; - /* The offset into the global offset table at which the address of - the relocation entry symbol, adjusted by the addend, resides - during execution. */ - bfd_vma g = (bfd_vma) - 1; - /* The section in which the symbol referenced by the relocation is - located. */ - asection *sec = NULL; - struct mips_elf_link_hash_entry* h = NULL; - /* True if the symbol referred to by this relocation is a local - symbol. */ - boolean local_p; - /* True if the symbol referred to by this relocation is "_gp_disp". */ - boolean gp_disp_p = false; - Elf_Internal_Shdr *symtab_hdr; - size_t extsymoff; - unsigned long r_symndx; - int r_type; - /* True if overflow occurred during the calculation of the - relocation value. */ - boolean overflowed_p; - /* True if this relocation refers to a MIPS16 function. */ - boolean target_is_16_bit_code_p = false; - - /* Parse the relocation. */ - r_symndx = ELF32_R_SYM (relocation->r_info); - r_type = ELF32_R_TYPE (relocation->r_info); - p = (input_section->output_section->vma - + input_section->output_offset - + relocation->r_offset); - - /* Assume that there will be no overflow. */ - overflowed_p = false; - - /* Figure out whether or not the symbol is local, and get the offset - used in the array of hash table entries. */ - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - local_p = mips_elf_local_relocation_p (input_bfd, relocation, - local_sections); - if (! elf_bad_symtab (input_bfd)) - extsymoff = symtab_hdr->sh_info; - else - { - /* The symbol table does not follow the rule that local symbols - must come before globals. */ - extsymoff = 0; - } - - /* Figure out the value of the symbol. */ - if (local_p) - { - Elf_Internal_Sym *sym; - - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - - symbol = sec->output_section->vma + sec->output_offset; - if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) - symbol += sym->st_value; - - /* MIPS16 text labels should be treated as odd. */ - if (sym->st_other == STO_MIPS16) - ++symbol; - - /* Record the name of this symbol, for our caller. */ - *namep = bfd_elf_string_from_elf_section (input_bfd, - symtab_hdr->sh_link, - sym->st_name); - if (*namep == '\0') - *namep = bfd_section_name (input_bfd, sec); - - target_is_16_bit_code_p = (sym->st_other == STO_MIPS16); - } - else - { - /* For global symbols we look up the symbol in the hash-table. */ - h = ((struct mips_elf_link_hash_entry *) - elf_sym_hashes (input_bfd) [r_symndx - extsymoff]); - /* Find the real hash-table entry for this symbol. */ - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link; - - /* Record the name of this symbol, for our caller. */ - *namep = h->root.root.root.string; - - /* See if this is the special _gp_disp symbol. Note that such a - symbol must always be a global symbol. */ - if (strcmp (h->root.root.root.string, "_gp_disp") == 0) - { - /* Relocations against _gp_disp are permitted only with - R_MIPS_HI16 and R_MIPS_LO16 relocations. */ - if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16) - return bfd_reloc_notsupported; - - gp_disp_p = true; - } - /* If this symbol is defined, calculate its address. Note that - _gp_disp is a magic symbol, always implicitly defined by the - linker, so it's inappropriate to check to see whether or not - its defined. */ - else if ((h->root.root.type == bfd_link_hash_defined - || h->root.root.type == bfd_link_hash_defweak) - && h->root.root.u.def.section) - { - sec = h->root.root.u.def.section; - if (sec->output_section) - symbol = (h->root.root.u.def.value - + sec->output_section->vma - + sec->output_offset); - else - symbol = h->root.root.u.def.value; - } - else if (h->root.root.type == bfd_link_hash_undefweak) - /* We allow relocations against undefined weak symbols, giving - it the value zero, so that you can undefined weak functions - and check to see if they exist by looking at their - addresses. */ - symbol = 0; - else if (info->shared && !info->symbolic && !info->no_undefined - && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT) - symbol = 0; - else if (strcmp (h->root.root.root.string, "_DYNAMIC_LINK") == 0) - { - /* If this is a dynamic link, we should have created a - _DYNAMIC_LINK symbol in mips_elf_create_dynamic_sections. - Otherwise, we should define the symbol with a value of 0. - FIXME: It should probably get into the symbol table - somehow as well. */ - BFD_ASSERT (! info->shared); - BFD_ASSERT (bfd_get_section_by_name (abfd, ".dynamic") == NULL); - symbol = 0; - } - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.root.string, input_bfd, - input_section, relocation->r_offset, - (!info->shared || info->no_undefined - || ELF_ST_VISIBILITY (h->root.other))))) - return bfd_reloc_undefined; - symbol = 0; - } - - target_is_16_bit_code_p = (h->root.other == STO_MIPS16); - } - - /* If this is a 32-bit call to a 16-bit function with a stub, we - need to redirect the call to the stub, unless we're already *in* - a stub. */ - if (r_type != R_MIPS16_26 && !info->relocateable - && ((h != NULL && h->fn_stub != NULL) - || (local_p && elf_tdata (input_bfd)->local_stubs != NULL - && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL)) - && !mips_elf_stub_section_p (input_bfd, input_section)) - { - /* This is a 32-bit call to a 16-bit function. We should - have already noticed that we were going to need the - stub. */ - if (local_p) - sec = elf_tdata (input_bfd)->local_stubs[r_symndx]; - else - { - BFD_ASSERT (h->need_fn_stub); - sec = h->fn_stub; - } - - symbol = sec->output_section->vma + sec->output_offset; - } - /* If this is a 16-bit call to a 32-bit function with a stub, we - need to redirect the call to the stub. */ - else if (r_type == R_MIPS16_26 && !info->relocateable - && h != NULL - && (h->call_stub != NULL || h->call_fp_stub != NULL) - && !target_is_16_bit_code_p) - { - /* If both call_stub and call_fp_stub are defined, we can figure - out which one to use by seeing which one appears in the input - file. */ - if (h->call_stub != NULL && h->call_fp_stub != NULL) - { - asection *o; - - sec = NULL; - for (o = input_bfd->sections; o != NULL; o = o->next) - { - if (strncmp (bfd_get_section_name (input_bfd, o), - CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) - { - sec = h->call_fp_stub; - break; - } - } - if (sec == NULL) - sec = h->call_stub; - } - else if (h->call_stub != NULL) - sec = h->call_stub; - else - sec = h->call_fp_stub; - - BFD_ASSERT (sec->_raw_size > 0); - symbol = sec->output_section->vma + sec->output_offset; - } - - /* Calls from 16-bit code to 32-bit code and vice versa require the - special jalx instruction. */ - *require_jalxp = (!info->relocateable - && ((r_type == R_MIPS16_26) != target_is_16_bit_code_p)); - - /* If we haven't already determined the GOT offset, or the GP value, - and we're going to need it, get it now. */ - switch (r_type) - { - case R_MIPS_CALL16: - case R_MIPS_GOT16: - case R_MIPS_GOT_DISP: - case R_MIPS_GOT_HI16: - case R_MIPS_CALL_HI16: - case R_MIPS_GOT_LO16: - case R_MIPS_CALL_LO16: - /* Find the index into the GOT where this value is located. */ - if (!local_p) - { - BFD_ASSERT (addend == 0); - g = mips_elf_global_got_index - (elf_hash_table (info)->dynobj, - (struct elf_link_hash_entry*) h); - } - else if (r_type == R_MIPS_GOT16) - /* There's no need to create a local GOT entry here; the - calculation for a local GOT16 entry does not involve G. */ - break; - else - { - g = mips_elf_local_got_index (abfd, info, symbol + addend); - if (g == (bfd_vma) -1) - return false; - } - - /* Convert GOT indices to actual offsets. */ - g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj, - abfd, g); - break; - - case R_MIPS_HI16: - case R_MIPS_LO16: - case R_MIPS_GPREL16: - case R_MIPS_GPREL32: - case R_MIPS_LITERAL: - gp0 = _bfd_get_gp_value (input_bfd); - gp = _bfd_get_gp_value (abfd); - break; - - default: - break; - } - - /* Figure out what kind of relocation is being performed. */ - switch (r_type) - { - case R_MIPS_NONE: - return bfd_reloc_continue; - - case R_MIPS_16: - value = symbol + mips_elf_sign_extend (addend, 16); - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_32: - case R_MIPS_REL32: - case R_MIPS_64: - if ((info->shared - || (elf_hash_table (info)->dynamic_sections_created - && h != NULL - && ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) - == 0))) - && (input_section->flags & SEC_ALLOC) != 0) - { - /* If we're creating a shared library, or this relocation is - against a symbol in a shared library, then we can't know - where the symbol will end up. So, we create a relocation - record in the output, and leave the job up to the dynamic - linker. */ - value = addend; - if (!mips_elf_create_dynamic_relocation (abfd, - info, - relocation, - h, - sec, - symbol, - &value, - input_section)) - return false; - } - else - { - if (r_type != R_MIPS_REL32) - value = symbol + addend; - else - value = addend; - } - value &= howto->dst_mask; - break; - - case R_MIPS_PC32: - case R_MIPS_PC64: - case R_MIPS_GNU_REL_LO16: - value = symbol + addend - p; - value &= howto->dst_mask; - break; - - case R_MIPS_GNU_REL16_S2: - value = symbol + mips_elf_sign_extend (addend << 2, 18) - p; - overflowed_p = mips_elf_overflow_p (value, 18); - value = (value >> 2) & howto->dst_mask; - break; - - case R_MIPS_GNU_REL_HI16: - value = mips_elf_high (addend + symbol - p); - value &= howto->dst_mask; - break; - - case R_MIPS16_26: - /* The calculation for R_MIPS_26 is just the same as for an - R_MIPS_26. It's only the storage of the relocated field into - the output file that's different. That's handled in - mips_elf_perform_relocation. So, we just fall through to the - R_MIPS_26 case here. */ - case R_MIPS_26: - if (local_p) - value = (((addend << 2) | (p & 0xf0000000)) + symbol) >> 2; - else - value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2; - value &= howto->dst_mask; - break; - - case R_MIPS_HI16: - if (!gp_disp_p) - { - value = mips_elf_high (addend + symbol); - value &= howto->dst_mask; - } - else - { - value = mips_elf_high (addend + gp - p); - overflowed_p = mips_elf_overflow_p (value, 16); - } - break; - - case R_MIPS_LO16: - if (!gp_disp_p) - value = (symbol + addend) & howto->dst_mask; - else - { - value = addend + gp - p + 4; - /* The MIPS ABI requires checking the R_MIPS_LO16 relocation - for overflow. But, on, say, Irix 5, relocations against - _gp_disp are normally generated from the .cpload - pseudo-op. It generates code that normally looks like - this: - - lui $gp,%hi(_gp_disp) - addiu $gp,$gp,%lo(_gp_disp) - addu $gp,$gp,$t9 - - Here $t9 holds the address of the function being called, - as required by the MIPS ELF ABI. The R_MIPS_LO16 - relocation can easily overflow in this situation, but the - R_MIPS_HI16 relocation will handle the overflow. - Therefore, we consider this a bug in the MIPS ABI, and do - not check for overflow here. */ - } - break; - - case R_MIPS_LITERAL: - /* Because we don't merge literal sections, we can handle this - just like R_MIPS_GPREL16. In the long run, we should merge - shared literals, and then we will need to additional work - here. */ - - /* Fall through. */ - - case R_MIPS16_GPREL: - /* The R_MIPS16_GPREL performs the same calculation as - R_MIPS_GPREL16, but stores the relocated bits in a different - order. We don't need to do anything special here; the - differences are handled in mips_elf_perform_relocation. */ - case R_MIPS_GPREL16: - if (local_p) - value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp; - else - value = mips_elf_sign_extend (addend, 16) + symbol - gp; - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_GOT16: - if (local_p) - { - value = mips_elf_got16_entry (abfd, info, symbol + addend); - if (value == (bfd_vma) -1) - return false; - value - = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj, - abfd, - value); - overflowed_p = mips_elf_overflow_p (value, 16); - break; - } - - /* Fall through. */ - - case R_MIPS_CALL16: - case R_MIPS_GOT_DISP: - value = g; - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_GPREL32: - value = (addend + symbol + gp0 - gp) & howto->dst_mask; - break; - - case R_MIPS_PC16: - value = mips_elf_sign_extend (addend, 16) + symbol - p; - value = (bfd_vma) ((bfd_signed_vma) value / 4); - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_GOT_HI16: - case R_MIPS_CALL_HI16: - /* We're allowed to handle these two relocations identically. - The dynamic linker is allowed to handle the CALL relocations - differently by creating a lazy evaluation stub. */ - value = g; - value = mips_elf_high (value); - value &= howto->dst_mask; - break; - - case R_MIPS_GOT_LO16: - case R_MIPS_CALL_LO16: - value = g & howto->dst_mask; - break; - - case R_MIPS_GOT_PAGE: - value = mips_elf_got_page (abfd, info, symbol + addend, NULL); - if (value == (bfd_vma) -1) - return false; - value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj, - abfd, - value); - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_GOT_OFST: - mips_elf_got_page (abfd, info, symbol + addend, &value); - overflowed_p = mips_elf_overflow_p (value, 16); - break; - - case R_MIPS_SUB: - value = symbol - addend; - value &= howto->dst_mask; - break; - - case R_MIPS_HIGHER: - value = mips_elf_higher (addend + symbol); - value &= howto->dst_mask; - break; - - case R_MIPS_HIGHEST: - value = mips_elf_highest (addend + symbol); - value &= howto->dst_mask; - break; - - case R_MIPS_SCN_DISP: - value = symbol + addend - sec->output_offset; - value &= howto->dst_mask; - break; - - case R_MIPS_PJUMP: - case R_MIPS_JALR: - /* Both of these may be ignored. R_MIPS_JALR is an optimization - hint; we could improve performance by honoring that hint. */ - return bfd_reloc_continue; - - case R_MIPS_GNU_VTINHERIT: - case R_MIPS_GNU_VTENTRY: - /* We don't do anything with these at present. */ - return bfd_reloc_continue; - - default: - /* An unrecognized relocation type. */ - return bfd_reloc_notsupported; - } - - /* Store the VALUE for our caller. */ - *valuep = value; - return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok; -} - -/* Obtain the field relocated by RELOCATION. */ - -static bfd_vma -mips_elf_obtain_contents (howto, relocation, input_bfd, contents) - reloc_howto_type *howto; - const Elf_Internal_Rela *relocation; - bfd *input_bfd; - bfd_byte *contents; -{ - bfd_vma x; - bfd_byte *location = contents + relocation->r_offset; - - /* Obtain the bytes. */ - x = bfd_get (8 * bfd_get_reloc_size (howto), input_bfd, location); - - if ((ELF32_R_TYPE (relocation->r_info) == R_MIPS16_26 - || ELF32_R_TYPE (relocation->r_info) == R_MIPS16_GPREL) - && bfd_little_endian (input_bfd)) - /* The two 16-bit words will be reversed on a little-endian - system. See mips_elf_perform_relocation for more details. */ - x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16)); - - return x; -} - -/* It has been determined that the result of the RELOCATION is the - VALUE. Use HOWTO to place VALUE into the output file at the - appropriate position. The SECTION is the section to which the - relocation applies. If REQUIRE_JALX is true, then the opcode used - for the relocation must be either JAL or JALX, and it is - unconditionally converted to JALX. - - Returns false if anything goes wrong. */ - -static boolean -mips_elf_perform_relocation (info, howto, relocation, value, - input_bfd, input_section, - contents, require_jalx) - struct bfd_link_info *info; - reloc_howto_type *howto; - const Elf_Internal_Rela *relocation; - bfd_vma value; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - boolean require_jalx; -{ - bfd_vma x; - bfd_byte *location; - int r_type = ELF32_R_TYPE (relocation->r_info); - - /* Figure out where the relocation is occurring. */ - location = contents + relocation->r_offset; - - /* Obtain the current value. */ - x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents); - - /* Clear the field we are setting. */ - x &= ~howto->dst_mask; - - /* If this is the R_MIPS16_26 relocation, we must store the - value in a funny way. */ - if (r_type == R_MIPS16_26) - { - /* R_MIPS16_26 is used for the mips16 jal and jalx instructions. - Most mips16 instructions are 16 bits, but these instructions - are 32 bits. - - The format of these instructions is: - - +--------------+--------------------------------+ - ! JALX ! X! Imm 20:16 ! Imm 25:21 ! - +--------------+--------------------------------+ - ! Immediate 15:0 ! - +-----------------------------------------------+ - - JALX is the 5-bit value 00011. X is 0 for jal, 1 for jalx. - Note that the immediate value in the first word is swapped. - - When producing a relocateable object file, R_MIPS16_26 is - handled mostly like R_MIPS_26. In particular, the addend is - stored as a straight 26-bit value in a 32-bit instruction. - (gas makes life simpler for itself by never adjusting a - R_MIPS16_26 reloc to be against a section, so the addend is - always zero). However, the 32 bit instruction is stored as 2 - 16-bit values, rather than a single 32-bit value. In a - big-endian file, the result is the same; in a little-endian - file, the two 16-bit halves of the 32 bit value are swapped. - This is so that a disassembler can recognize the jal - instruction. - - When doing a final link, R_MIPS16_26 is treated as a 32 bit - instruction stored as two 16-bit values. The addend A is the - contents of the targ26 field. The calculation is the same as - R_MIPS_26. When storing the calculated value, reorder the - immediate value as shown above, and don't forget to store the - value as two 16-bit values. - - To put it in MIPS ABI terms, the relocation field is T-targ26-16, - defined as - - big-endian: - +--------+----------------------+ - | | | - | | targ26-16 | - |31 26|25 0| - +--------+----------------------+ - - little-endian: - +----------+------+-------------+ - | | | | - | sub1 | | sub2 | - |0 9|10 15|16 31| - +----------+--------------------+ - where targ26-16 is sub1 followed by sub2 (i.e., the addend field A is - ((sub1 << 16) | sub2)). - - When producing a relocateable object file, the calculation is - (((A < 2) | (P & 0xf0000000) + S) >> 2) - When producing a fully linked file, the calculation is - let R = (((A < 2) | (P & 0xf0000000) + S) >> 2) - ((R & 0x1f0000) << 5) | ((R & 0x3e00000) >> 5) | (R & 0xffff) */ - - if (!info->relocateable) - /* Shuffle the bits according to the formula above. */ - value = (((value & 0x1f0000) << 5) - | ((value & 0x3e00000) >> 5) - | (value & 0xffff)); - - } - else if (r_type == R_MIPS16_GPREL) - { - /* R_MIPS16_GPREL is used for GP-relative addressing in mips16 - mode. A typical instruction will have a format like this: - - +--------------+--------------------------------+ - ! EXTEND ! Imm 10:5 ! Imm 15:11 ! - +--------------+--------------------------------+ - ! Major ! rx ! ry ! Imm 4:0 ! - +--------------+--------------------------------+ - - EXTEND is the five bit value 11110. Major is the instruction - opcode. - - This is handled exactly like R_MIPS_GPREL16, except that the - addend is retrieved and stored as shown in this diagram; that - is, the Imm fields above replace the V-rel16 field. - - All we need to do here is shuffle the bits appropriately. As - above, the two 16-bit halves must be swapped on a - little-endian system. */ - value = (((value & 0x7e0) << 16) - | ((value & 0xf800) << 5) - | (value & 0x1f)); - } - - /* Set the field. */ - x |= (value & howto->dst_mask); - - /* If required, turn JAL into JALX. */ - if (require_jalx) - { - boolean ok; - bfd_vma opcode = x >> 26; - bfd_vma jalx_opcode; - - /* Check to see if the opcode is already JAL or JALX. */ - if (r_type == R_MIPS16_26) - { - ok = ((opcode == 0x6) || (opcode == 0x7)); - jalx_opcode = 0x7; - } - else - { - ok = ((opcode == 0x3) || (opcode == 0x1d)); - jalx_opcode = 0x1d; - } - - /* If the opcode is not JAL or JALX, there's a problem. */ - if (!ok) - { - (*_bfd_error_handler) - (_("%s: %s+0x%lx: jump to stub routine which is not jal"), - bfd_get_filename (input_bfd), - input_section->name, - (unsigned long) relocation->r_offset); - bfd_set_error (bfd_error_bad_value); - return false; - } - - /* Make this the JALX opcode. */ - x = (x & ~(0x3f << 26)) | (jalx_opcode << 26); - } - - /* Swap the high- and low-order 16 bits on little-endian systems - when doing a MIPS16 relocation. */ - if ((r_type == R_MIPS16_GPREL || r_type == R_MIPS16_26) - && bfd_little_endian (input_bfd)) - x = (((x & 0xffff) << 16) | ((x & 0xffff0000) >> 16)); - - /* Put the value into the output. */ - bfd_put (8 * bfd_get_reloc_size (howto), input_bfd, x, location); - return true; -} - -/* Returns true if SECTION is a MIPS16 stub section. */ - -static boolean -mips_elf_stub_section_p (abfd, section) - bfd *abfd ATTRIBUTE_UNUSED; - asection *section; -{ - const char *name = bfd_get_section_name (abfd, section); - - return (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0 - || strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0 - || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0); -} - -/* Relocate a MIPS ELF section. */ - -boolean -_bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - Elf_Internal_Rela *relocs; - Elf_Internal_Sym *local_syms; - asection **local_sections; -{ - Elf_Internal_Rela *rel; - const Elf_Internal_Rela *relend; - bfd_vma addend = 0; - boolean use_saved_addend_p = false; - struct elf_backend_data *bed; - - bed = get_elf_backend_data (output_bfd); - relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel; - for (rel = relocs; rel < relend; ++rel) - { - const char *name; - bfd_vma value; - reloc_howto_type *howto; - boolean require_jalx; - /* True if the relocation is a RELA relocation, rather than a - REL relocation. */ - boolean rela_relocation_p = true; - int r_type = ELF32_R_TYPE (rel->r_info); - - /* Find the relocation howto for this relocation. */ - if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)) - { - /* Some 32-bit code uses R_MIPS_64. In particular, people use - 64-bit code, but make sure all their addresses are in the - lowermost or uppermost 32-bit section of the 64-bit address - space. Thus, when they use an R_MIPS_64 they mean what is - usually meant by R_MIPS_32, with the exception that the - stored value is sign-extended to 64 bits. */ - howto = elf_mips_howto_table + R_MIPS_32; - - /* On big-endian systems, we need to lie about the position - of the reloc. */ - if (bfd_big_endian (input_bfd)) - rel->r_offset += 4; - } - else - howto = mips_rtype_to_howto (r_type); - - if (!use_saved_addend_p) - { - Elf_Internal_Shdr *rel_hdr; - - /* If these relocations were originally of the REL variety, - we must pull the addend out of the field that will be - relocated. Otherwise, we simply use the contents of the - RELA relocation. To determine which flavor or relocation - this is, we depend on the fact that the INPUT_SECTION's - REL_HDR is read before its REL_HDR2. */ - rel_hdr = &elf_section_data (input_section)->rel_hdr; - if ((size_t) (rel - relocs) - >= (rel_hdr->sh_size / rel_hdr->sh_entsize - * bed->s->int_rels_per_ext_rel)) - rel_hdr = elf_section_data (input_section)->rel_hdr2; - if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd)) - { - /* Note that this is a REL relocation. */ - rela_relocation_p = false; - - /* Get the addend, which is stored in the input file. */ - addend = mips_elf_obtain_contents (howto, - rel, - input_bfd, - contents); - addend &= howto->src_mask; - - /* For some kinds of relocations, the ADDEND is a - combination of the addend stored in two different - relocations. */ - if (r_type == R_MIPS_HI16 - || r_type == R_MIPS_GNU_REL_HI16 - || (r_type == R_MIPS_GOT16 - && mips_elf_local_relocation_p (input_bfd, rel, - local_sections))) - { - bfd_vma l; - const Elf_Internal_Rela *lo16_relocation; - reloc_howto_type *lo16_howto; - int lo; - - /* The combined value is the sum of the HI16 addend, - left-shifted by sixteen bits, and the LO16 - addend, sign extended. (Usually, the code does - a `lui' of the HI16 value, and then an `addiu' of - the LO16 value.) - - Scan ahead to find a matching LO16 relocation. */ - if (r_type == R_MIPS_GNU_REL_HI16) - lo = R_MIPS_GNU_REL_LO16; - else - lo = R_MIPS_LO16; - lo16_relocation - = mips_elf_next_relocation (lo, rel, relend); - if (lo16_relocation == NULL) - return false; - - /* Obtain the addend kept there. */ - lo16_howto = mips_rtype_to_howto (lo); - l = mips_elf_obtain_contents (lo16_howto, - lo16_relocation, - input_bfd, contents); - l &= lo16_howto->src_mask; - l = mips_elf_sign_extend (l, 16); - - addend <<= 16; - - /* Compute the combined addend. */ - addend += l; - } - else if (r_type == R_MIPS16_GPREL) - { - /* The addend is scrambled in the object file. See - mips_elf_perform_relocation for details on the - format. */ - addend = (((addend & 0x1f0000) >> 5) - | ((addend & 0x7e00000) >> 16) - | (addend & 0x1f)); - } - } - else - addend = rel->r_addend; - } - - if (info->relocateable) - { - Elf_Internal_Sym *sym; - unsigned long r_symndx; - - if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd) - && bfd_big_endian (input_bfd)) - rel->r_offset -= 4; - - /* Since we're just relocating, all we need to do is copy - the relocations back out to the object file, unless - they're against a section symbol, in which case we need - to adjust by the section offset, or unless they're GP - relative in which case we need to adjust by the amount - that we're adjusting GP in this relocateable object. */ - - if (!mips_elf_local_relocation_p (input_bfd, rel, local_sections)) - /* There's nothing to do for non-local relocations. */ - continue; - - if (r_type == R_MIPS16_GPREL - || r_type == R_MIPS_GPREL16 - || r_type == R_MIPS_GPREL32 - || r_type == R_MIPS_LITERAL) - addend -= (_bfd_get_gp_value (output_bfd) - - _bfd_get_gp_value (input_bfd)); - else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26 - || r_type == R_MIPS_GNU_REL16_S2) - /* The addend is stored without its two least - significant bits (which are always zero.) In a - non-relocateable link, calculate_relocation will do - this shift; here, we must do it ourselves. */ - addend <<= 2; - - r_symndx = ELF32_R_SYM (rel->r_info); - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - /* Adjust the addend appropriately. */ - addend += local_sections[r_symndx]->output_offset; - - /* If the relocation is for a R_MIPS_HI16 or R_MIPS_GOT16, - then we only want to write out the high-order 16 bits. - The subsequent R_MIPS_LO16 will handle the low-order bits. */ - if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16 - || r_type == R_MIPS_GNU_REL_HI16) - addend = mips_elf_high (addend); - /* If the relocation is for an R_MIPS_26 relocation, then - the two low-order bits are not stored in the object file; - they are implicitly zero. */ - else if (r_type == R_MIPS_26 || r_type == R_MIPS16_26 - || r_type == R_MIPS_GNU_REL16_S2) - addend >>= 2; - - if (rela_relocation_p) - /* If this is a RELA relocation, just update the addend. - We have to cast away constness for REL. */ - rel->r_addend = addend; - else - { - /* Otherwise, we have to write the value back out. Note - that we use the source mask, rather than the - destination mask because the place to which we are - writing will be source of the addend in the final - link. */ - addend &= howto->src_mask; - - if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)) - /* See the comment above about using R_MIPS_64 in the 32-bit - ABI. Here, we need to update the addend. It would be - possible to get away with just using the R_MIPS_32 reloc - but for endianness. */ - { - bfd_vma sign_bits; - bfd_vma low_bits; - bfd_vma high_bits; - - if (addend & 0x80000000u) - sign_bits = 0xffffffffu; - else - sign_bits = 0; - - /* If we don't know that we have a 64-bit type, - do two separate stores. */ - if (bfd_big_endian (input_bfd)) - { - /* Store the sign-bits (which are most significant) - first. */ - low_bits = sign_bits; - high_bits = addend; - } - else - { - low_bits = addend; - high_bits = sign_bits; - } - bfd_put_32 (input_bfd, low_bits, - contents + rel->r_offset); - bfd_put_32 (input_bfd, high_bits, - contents + rel->r_offset + 4); - continue; - } - - if (!mips_elf_perform_relocation (info, howto, rel, addend, - input_bfd, input_section, - contents, false)) - return false; - } - - /* Go on to the next relocation. */ - continue; - } - - /* In the N32 and 64-bit ABIs there may be multiple consecutive - relocations for the same offset. In that case we are - supposed to treat the output of each relocation as the addend - for the next. */ - if (rel + 1 < relend - && rel->r_offset == rel[1].r_offset - && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE) - use_saved_addend_p = true; - else - use_saved_addend_p = false; - - /* Figure out what value we are supposed to relocate. */ - switch (mips_elf_calculate_relocation (output_bfd, - input_bfd, - input_section, - info, - rel, - addend, - howto, - local_syms, - local_sections, - &value, - &name, - &require_jalx)) - { - case bfd_reloc_continue: - /* There's nothing to do. */ - continue; - - case bfd_reloc_undefined: - /* mips_elf_calculate_relocation already called the - undefined_symbol callback. There's no real point in - trying to perform the relocation at this point, so we - just skip ahead to the next relocation. */ - continue; - - case bfd_reloc_notsupported: - abort (); - break; - - case bfd_reloc_overflow: - if (use_saved_addend_p) - /* Ignore overflow until we reach the last relocation for - a given location. */ - ; - else - { - BFD_ASSERT (name != NULL); - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, - input_bfd, input_section, rel->r_offset))) - return false; - } - break; - - case bfd_reloc_ok: - break; - - default: - abort (); - break; - } - - /* If we've got another relocation for the address, keep going - until we reach the last one. */ - if (use_saved_addend_p) - { - addend = value; - continue; - } - - if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)) - /* See the comment above about using R_MIPS_64 in the 32-bit - ABI. Until now, we've been using the HOWTO for R_MIPS_32; - that calculated the right value. Now, however, we - sign-extend the 32-bit result to 64-bits, and store it as a - 64-bit value. We are especially generous here in that we - go to extreme lengths to support this usage on systems with - only a 32-bit VMA. */ - { - bfd_vma sign_bits; - bfd_vma low_bits; - bfd_vma high_bits; - - if (value & 0x80000000u) - sign_bits = 0xffffffffu; - else - sign_bits = 0; - - /* If we don't know that we have a 64-bit type, - do two separate stores. */ - if (bfd_big_endian (input_bfd)) - { - /* Undo what we did above. */ - rel->r_offset -= 4; - /* Store the sign-bits (which are most significant) - first. */ - low_bits = sign_bits; - high_bits = value; - } - else - { - low_bits = value; - high_bits = sign_bits; - } - bfd_put_32 (input_bfd, low_bits, - contents + rel->r_offset); - bfd_put_32 (input_bfd, high_bits, - contents + rel->r_offset + 4); - continue; - } - - /* Actually perform the relocation. */ - if (!mips_elf_perform_relocation (info, howto, rel, value, input_bfd, - input_section, contents, - require_jalx)) - return false; - } - - return true; -} - -/* This hook function is called before the linker writes out a global - symbol. We mark symbols as small common if appropriate. This is - also where we undo the increment of the value for a mips16 symbol. */ - -/*ARGSIGNORED*/ -boolean -_bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec) - bfd *abfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - const char *name ATTRIBUTE_UNUSED; - Elf_Internal_Sym *sym; - asection *input_sec; -{ - /* If we see a common symbol, which implies a relocatable link, then - if a symbol was small common in an input file, mark it as small - common in the output file. */ - if (sym->st_shndx == SHN_COMMON - && strcmp (input_sec->name, ".scommon") == 0) - sym->st_shndx = SHN_MIPS_SCOMMON; - - if (sym->st_other == STO_MIPS16 - && (sym->st_value & 1) != 0) - --sym->st_value; - - return true; -} - -/* Functions for the dynamic linker. */ - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ - -#define ELF_DYNAMIC_INTERPRETER(abfd) \ - (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \ - : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \ - : "/usr/lib/libc.so.1") - -/* Create dynamic sections when linking against a dynamic object. */ - -boolean -_bfd_mips_elf_create_dynamic_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - struct elf_link_hash_entry *h; - flagword flags; - register asection *s; - const char * const *namep; - - flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED | SEC_READONLY); - - /* Mips ABI requests the .dynamic section to be read only. */ - s = bfd_get_section_by_name (abfd, ".dynamic"); - if (s != NULL) - { - if (! bfd_set_section_flags (abfd, s, flags)) - return false; - } - - /* We need to create .got section. */ - if (! mips_elf_create_got_section (abfd, info)) - return false; - - /* Create the .msym section on IRIX6. It is used by the dynamic - linker to speed up dynamic relocations, and to avoid computing - the ELF hash for symbols. */ - if (IRIX_COMPAT (abfd) == ict_irix6 - && !mips_elf_create_msym_section (abfd)) - return false; - - /* Create .stub section. */ - if (bfd_get_section_by_name (abfd, - MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL) - { - s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd)); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE) - || ! bfd_set_section_alignment (abfd, s, - MIPS_ELF_LOG_FILE_ALIGN (abfd))) - return false; - } - - if (IRIX_COMPAT (abfd) == ict_irix5 - && !info->shared - && bfd_get_section_by_name (abfd, ".rld_map") == NULL) - { - s = bfd_make_section (abfd, ".rld_map"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags & ~SEC_READONLY) - || ! bfd_set_section_alignment (abfd, s, - MIPS_ELF_LOG_FILE_ALIGN (abfd))) - return false; - } - - /* On IRIX5, we adjust add some additional symbols and change the - alignments of several sections. There is no ABI documentation - indicating that this is necessary on IRIX6, nor any evidence that - the linker takes such action. */ - if (IRIX_COMPAT (abfd) == ict_irix5) - { - for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++) - { - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, *namep, BSF_GLOBAL, bfd_und_section_ptr, - (bfd_vma) 0, (const char *) NULL, false, - get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_SECTION; - - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - } - - /* We need to create a .compact_rel section. */ - if (! mips_elf_create_compact_rel_section (abfd, info)) - return false; - - /* Change aligments of some sections. */ - s = bfd_get_section_by_name (abfd, ".hash"); - if (s != NULL) - bfd_set_section_alignment (abfd, s, 4); - s = bfd_get_section_by_name (abfd, ".dynsym"); - if (s != NULL) - bfd_set_section_alignment (abfd, s, 4); - s = bfd_get_section_by_name (abfd, ".dynstr"); - if (s != NULL) - bfd_set_section_alignment (abfd, s, 4); - s = bfd_get_section_by_name (abfd, ".reginfo"); - if (s != NULL) - bfd_set_section_alignment (abfd, s, 4); - s = bfd_get_section_by_name (abfd, ".dynamic"); - if (s != NULL) - bfd_set_section_alignment (abfd, s, 4); - } - - if (!info->shared) - { - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "_DYNAMIC_LINK", BSF_GLOBAL, bfd_abs_section_ptr, - (bfd_vma) 0, (const char *) NULL, false, - get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_SECTION; - - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - if (! mips_elf_hash_table (info)->use_rld_obj_head) - { - /* __rld_map is a four byte word located in the .data section - and is filled in by the rtld to contain a pointer to - the _r_debug structure. Its symbol value will be set in - mips_elf_finish_dynamic_symbol. */ - s = bfd_get_section_by_name (abfd, ".rld_map"); - BFD_ASSERT (s != NULL); - - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "__rld_map", BSF_GLOBAL, s, - (bfd_vma) 0, (const char *) NULL, false, - get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_OBJECT; - - if (! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - } - } - - return true; -} - -/* Create the .compact_rel section. */ - -static boolean -mips_elf_create_compact_rel_section (abfd, info) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; -{ - flagword flags; - register asection *s; - - if (bfd_get_section_by_name (abfd, ".compact_rel") == NULL) - { - flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED - | SEC_READONLY); - - s = bfd_make_section (abfd, ".compact_rel"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags) - || ! bfd_set_section_alignment (abfd, s, - MIPS_ELF_LOG_FILE_ALIGN (abfd))) - return false; - - s->_raw_size = sizeof (Elf32_External_compact_rel); - } - - return true; -} - -/* Create the .got section to hold the global offset table. */ - -static boolean -mips_elf_create_got_section (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - flagword flags; - register asection *s; - struct elf_link_hash_entry *h; - struct mips_got_info *g; - - /* This function may be called more than once. */ - if (mips_elf_got_section (abfd)) - return true; - - flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED); - - s = bfd_make_section (abfd, ".got"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags) - || ! bfd_set_section_alignment (abfd, s, 4)) - return false; - - /* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the - linker script because we don't want to define the symbol if we - are not creating a global offset table. */ - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, - (bfd_vma) 0, (const char *) NULL, false, - get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_OBJECT; - - if (info->shared - && ! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - /* The first several global offset table entries are reserved. */ - s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd); - - g = (struct mips_got_info *) bfd_alloc (abfd, - sizeof (struct mips_got_info)); - if (g == NULL) - return false; - g->global_gotsym = NULL; - g->local_gotno = MIPS_RESERVED_GOTNO; - g->assigned_gotno = MIPS_RESERVED_GOTNO; - if (elf_section_data (s) == NULL) - { - s->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct bfd_elf_section_data)); - if (elf_section_data (s) == NULL) - return false; - } - elf_section_data (s)->tdata = (PTR) g; - elf_section_data (s)->this_hdr.sh_flags - |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL; - - return true; -} - -/* Returns the .msym section for ABFD, creating it if it does not - already exist. Returns NULL to indicate error. */ - -static asection * -mips_elf_create_msym_section (abfd) - bfd *abfd; -{ - asection *s; - - s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd)); - if (!s) - { - s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd)); - if (!s - || !bfd_set_section_flags (abfd, s, - SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_LINKER_CREATED - | SEC_READONLY) - || !bfd_set_section_alignment (abfd, s, - MIPS_ELF_LOG_FILE_ALIGN (abfd))) - return NULL; - } - - return s; -} - -/* Add room for N relocations to the .rel.dyn section in ABFD. */ - -static void -mips_elf_allocate_dynamic_relocations (abfd, n) - bfd *abfd; - unsigned int n; -{ - asection *s; - - s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd)); - BFD_ASSERT (s != NULL); - - if (s->_raw_size == 0) - { - /* Make room for a null element. */ - s->_raw_size += MIPS_ELF_REL_SIZE (abfd); - ++s->reloc_count; - } - s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd); -} - -/* Look through the relocs for a section during the first phase, and - allocate space in the global offset table. */ - -boolean -_bfd_mips_elf_check_relocs (abfd, info, sec, relocs) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - const Elf_Internal_Rela *relocs; -{ - const char *name; - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - struct mips_got_info *g; - size_t extsymoff; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - asection *sgot; - asection *sreloc; - struct elf_backend_data *bed; - - if (info->relocateable) - return true; - - dynobj = elf_hash_table (info)->dynobj; - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info; - - /* Check for the mips16 stub sections. */ - - name = bfd_get_section_name (abfd, sec); - if (strncmp (name, FN_STUB, sizeof FN_STUB - 1) == 0) - { - unsigned long r_symndx; - - /* Look at the relocation information to figure out which symbol - this is for. */ - - r_symndx = ELF32_R_SYM (relocs->r_info); - - if (r_symndx < extsymoff - || sym_hashes[r_symndx - extsymoff] == NULL) - { - asection *o; - - /* This stub is for a local symbol. This stub will only be - needed if there is some relocation in this BFD, other - than a 16 bit function call, which refers to this symbol. */ - for (o = abfd->sections; o != NULL; o = o->next) - { - Elf_Internal_Rela *sec_relocs; - const Elf_Internal_Rela *r, *rend; - - /* We can ignore stub sections when looking for relocs. */ - if ((o->flags & SEC_RELOC) == 0 - || o->reloc_count == 0 - || strncmp (bfd_get_section_name (abfd, o), FN_STUB, - sizeof FN_STUB - 1) == 0 - || strncmp (bfd_get_section_name (abfd, o), CALL_STUB, - sizeof CALL_STUB - 1) == 0 - || strncmp (bfd_get_section_name (abfd, o), CALL_FP_STUB, - sizeof CALL_FP_STUB - 1) == 0) - continue; - - sec_relocs = (_bfd_elf32_link_read_relocs - (abfd, o, (PTR) NULL, - (Elf_Internal_Rela *) NULL, - info->keep_memory)); - if (sec_relocs == NULL) - return false; - - rend = sec_relocs + o->reloc_count; - for (r = sec_relocs; r < rend; r++) - if (ELF32_R_SYM (r->r_info) == r_symndx - && ELF32_R_TYPE (r->r_info) != R_MIPS16_26) - break; - - if (! info->keep_memory) - free (sec_relocs); - - if (r < rend) - break; - } - - if (o == NULL) - { - /* There is no non-call reloc for this stub, so we do - not need it. Since this function is called before - the linker maps input sections to output sections, we - can easily discard it by setting the SEC_EXCLUDE - flag. */ - sec->flags |= SEC_EXCLUDE; - return true; - } - - /* Record this stub in an array of local symbol stubs for - this BFD. */ - if (elf_tdata (abfd)->local_stubs == NULL) - { - unsigned long symcount; - asection **n; - - if (elf_bad_symtab (abfd)) - symcount = symtab_hdr->sh_size / symtab_hdr->sh_entsize; - else - symcount = symtab_hdr->sh_info; - n = (asection **) bfd_zalloc (abfd, - symcount * sizeof (asection *)); - if (n == NULL) - return false; - elf_tdata (abfd)->local_stubs = n; - } - - elf_tdata (abfd)->local_stubs[r_symndx] = sec; - - /* We don't need to set mips16_stubs_seen in this case. - That flag is used to see whether we need to look through - the global symbol table for stubs. We don't need to set - it here, because we just have a local stub. */ - } - else - { - struct mips_elf_link_hash_entry *h; - - h = ((struct mips_elf_link_hash_entry *) - sym_hashes[r_symndx - extsymoff]); - - /* H is the symbol this stub is for. */ - - h->fn_stub = sec; - mips_elf_hash_table (info)->mips16_stubs_seen = true; - } - } - else if (strncmp (name, CALL_STUB, sizeof CALL_STUB - 1) == 0 - || strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) - { - unsigned long r_symndx; - struct mips_elf_link_hash_entry *h; - asection **loc; - - /* Look at the relocation information to figure out which symbol - this is for. */ - - r_symndx = ELF32_R_SYM (relocs->r_info); - - if (r_symndx < extsymoff - || sym_hashes[r_symndx - extsymoff] == NULL) - { - /* This stub was actually built for a static symbol defined - in the same file. We assume that all static symbols in - mips16 code are themselves mips16, so we can simply - discard this stub. Since this function is called before - the linker maps input sections to output sections, we can - easily discard it by setting the SEC_EXCLUDE flag. */ - sec->flags |= SEC_EXCLUDE; - return true; - } - - h = ((struct mips_elf_link_hash_entry *) - sym_hashes[r_symndx - extsymoff]); - - /* H is the symbol this stub is for. */ - - if (strncmp (name, CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0) - loc = &h->call_fp_stub; - else - loc = &h->call_stub; - - /* If we already have an appropriate stub for this function, we - don't need another one, so we can discard this one. Since - this function is called before the linker maps input sections - to output sections, we can easily discard it by setting the - SEC_EXCLUDE flag. We can also discard this section if we - happen to already know that this is a mips16 function; it is - not necessary to check this here, as it is checked later, but - it is slightly faster to check now. */ - if (*loc != NULL || h->root.other == STO_MIPS16) - { - sec->flags |= SEC_EXCLUDE; - return true; - } - - *loc = sec; - mips_elf_hash_table (info)->mips16_stubs_seen = true; - } - - if (dynobj == NULL) - { - sgot = NULL; - g = NULL; - } - else - { - sgot = mips_elf_got_section (dynobj); - if (sgot == NULL) - g = NULL; - else - { - BFD_ASSERT (elf_section_data (sgot) != NULL); - g = (struct mips_got_info *) elf_section_data (sgot)->tdata; - BFD_ASSERT (g != NULL); - } - } - - sreloc = NULL; - bed = get_elf_backend_data (abfd); - rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel; - for (rel = relocs; rel < rel_end; ++rel) - { - unsigned long r_symndx; - int r_type; - struct elf_link_hash_entry *h; - - r_symndx = ELF32_R_SYM (rel->r_info); - r_type = ELF32_R_TYPE (rel->r_info); - - if (r_symndx < extsymoff) - h = NULL; - else - { - h = sym_hashes[r_symndx - extsymoff]; - - /* This may be an indirect symbol created because of a version. */ - if (h != NULL) - { - while (h->root.type == bfd_link_hash_indirect) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - } - - /* Some relocs require a global offset table. */ - if (dynobj == NULL || sgot == NULL) - { - switch (r_type) - { - case R_MIPS_GOT16: - case R_MIPS_CALL16: - case R_MIPS_CALL_HI16: - case R_MIPS_CALL_LO16: - case R_MIPS_GOT_HI16: - case R_MIPS_GOT_LO16: - case R_MIPS_GOT_PAGE: - case R_MIPS_GOT_OFST: - case R_MIPS_GOT_DISP: - if (dynobj == NULL) - elf_hash_table (info)->dynobj = dynobj = abfd; - if (! mips_elf_create_got_section (dynobj, info)) - return false; - g = mips_elf_got_info (dynobj, &sgot); - break; - - case R_MIPS_32: - case R_MIPS_REL32: - case R_MIPS_64: - if (dynobj == NULL - && (info->shared || h != NULL) - && (sec->flags & SEC_ALLOC) != 0) - elf_hash_table (info)->dynobj = dynobj = abfd; - break; - - default: - break; - } - } - - if (!h && (r_type == R_MIPS_CALL_LO16 - || r_type == R_MIPS_GOT_LO16 - || r_type == R_MIPS_GOT_DISP)) - { - /* We may need a local GOT entry for this relocation. We - don't count R_MIPS_GOT_PAGE because we can estimate the - maximum number of pages needed by looking at the size of - the segment. Similar comments apply to R_MIPS_GOT16. We - don't count R_MIPS_GOT_HI16, or R_MIPS_CALL_HI16 because - these are always followed by an R_MIPS_GOT_LO16 or - R_MIPS_CALL_LO16. - - This estimation is very conservative since we can merge - duplicate entries in the GOT. In order to be less - conservative, we could actually build the GOT here, - rather than in relocate_section. */ - g->local_gotno++; - sgot->_raw_size += MIPS_ELF_GOT_SIZE (dynobj); - } - - switch (r_type) - { - case R_MIPS_CALL16: - if (h == NULL) - { - (*_bfd_error_handler) - (_("%s: CALL16 reloc at 0x%lx not against global symbol"), - bfd_get_filename (abfd), (unsigned long) rel->r_offset); - bfd_set_error (bfd_error_bad_value); - return false; - } - /* Fall through. */ - - case R_MIPS_CALL_HI16: - case R_MIPS_CALL_LO16: - if (h != NULL) - { - /* This symbol requires a global offset table entry. */ - if (!mips_elf_record_global_got_symbol (h, info, g)) - return false; - - /* We need a stub, not a plt entry for the undefined - function. But we record it as if it needs plt. See - elf_adjust_dynamic_symbol in elflink.h. */ - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - h->type = STT_FUNC; - } - break; - - case R_MIPS_GOT16: - case R_MIPS_GOT_HI16: - case R_MIPS_GOT_LO16: - case R_MIPS_GOT_DISP: - /* This symbol requires a global offset table entry. */ - if (h && !mips_elf_record_global_got_symbol (h, info, g)) - return false; - break; - - case R_MIPS_32: - case R_MIPS_REL32: - case R_MIPS_64: - if ((info->shared || h != NULL) - && (sec->flags & SEC_ALLOC) != 0) - { - if (sreloc == NULL) - { - const char *name = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj); - - sreloc = bfd_get_section_by_name (dynobj, name); - if (sreloc == NULL) - { - sreloc = bfd_make_section (dynobj, name); - if (sreloc == NULL - || ! bfd_set_section_flags (dynobj, sreloc, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)) - || ! bfd_set_section_alignment (dynobj, sreloc, - 4)) - return false; - } - } - if (info->shared) - /* When creating a shared object, we must copy these - reloc types into the output file as R_MIPS_REL32 - relocs. We make room for this reloc in the - .rel.dyn reloc section. */ - mips_elf_allocate_dynamic_relocations (dynobj, 1); - else - { - struct mips_elf_link_hash_entry *hmips; - - /* We only need to copy this reloc if the symbol is - defined in a dynamic object. */ - hmips = (struct mips_elf_link_hash_entry *) h; - ++hmips->possibly_dynamic_relocs; - } - - /* Even though we don't directly need a GOT entry for - this symbol, a symbol must have a dynamic symbol - table index greater that DT_MIPS_GOTSYM if there are - dynamic relocations against it. */ - if (h != NULL - && !mips_elf_record_global_got_symbol (h, info, g)) - return false; - } - - if (SGI_COMPAT (dynobj)) - mips_elf_hash_table (info)->compact_rel_size += - sizeof (Elf32_External_crinfo); - break; - - case R_MIPS_26: - case R_MIPS_GPREL16: - case R_MIPS_LITERAL: - case R_MIPS_GPREL32: - if (SGI_COMPAT (dynobj)) - mips_elf_hash_table (info)->compact_rel_size += - sizeof (Elf32_External_crinfo); - break; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_MIPS_GNU_VTINHERIT: - if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return false; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_MIPS_GNU_VTENTRY: - if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset)) - return false; - break; - - default: - break; - } - - /* If this reloc is not a 16 bit call, and it has a global - symbol, then we will need the fn_stub if there is one. - References from a stub section do not count. */ - if (h != NULL - && r_type != R_MIPS16_26 - && strncmp (bfd_get_section_name (abfd, sec), FN_STUB, - sizeof FN_STUB - 1) != 0 - && strncmp (bfd_get_section_name (abfd, sec), CALL_STUB, - sizeof CALL_STUB - 1) != 0 - && strncmp (bfd_get_section_name (abfd, sec), CALL_FP_STUB, - sizeof CALL_FP_STUB - 1) != 0) - { - struct mips_elf_link_hash_entry *mh; - - mh = (struct mips_elf_link_hash_entry *) h; - mh->need_fn_stub = true; - } - } - - return true; -} - -/* Return the section that should be marked against GC for a given - relocation. */ - -asection * -_bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - Elf_Internal_Rela *rel; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; -{ - /* ??? Do mips16 stub sections need to be handled special? */ - - if (h != NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_MIPS_GNU_VTINHERIT: - case R_MIPS_GNU_VTENTRY: - break; - - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - { - if (!(elf_bad_symtab (abfd) - && ELF_ST_BIND (sym->st_info) != STB_LOCAL) - && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) - && sym->st_shndx != SHN_COMMON)) - { - return bfd_section_from_elf_index (abfd, sym->st_shndx); - } - } - - return NULL; -} - -/* Update the got entry reference counts for the section being removed. */ - -boolean -_bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs) - bfd *abfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - asection *sec ATTRIBUTE_UNUSED; - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; -{ -#if 0 - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_signed_vma *local_got_refcounts; - const Elf_Internal_Rela *rel, *relend; - unsigned long r_symndx; - struct elf_link_hash_entry *h; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; rel++) - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_MIPS_GOT16: - case R_MIPS_CALL16: - case R_MIPS_CALL_HI16: - case R_MIPS_CALL_LO16: - case R_MIPS_GOT_HI16: - case R_MIPS_GOT_LO16: - /* ??? It would seem that the existing MIPS code does no sort - of reference counting or whatnot on its GOT and PLT entries, - so it is not possible to garbage collect them at this time. */ - break; - - default: - break; - } -#endif - - return true; -} - - -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -boolean -_bfd_mips_elf_adjust_dynamic_symbol (info, h) - struct bfd_link_info *info; - struct elf_link_hash_entry *h; -{ - bfd *dynobj; - struct mips_elf_link_hash_entry *hmips; - asection *s; - - dynobj = elf_hash_table (info)->dynobj; - - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) - || h->weakdef != NULL - || ((h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_REF_REGULAR) != 0 - && (h->elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR) == 0))); - - /* If this symbol is defined in a dynamic object, we need to copy - any R_MIPS_32 or R_MIPS_REL32 relocs against it into the output - file. */ - hmips = (struct mips_elf_link_hash_entry *) h; - if (! info->relocateable - && hmips->possibly_dynamic_relocs != 0 - && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - mips_elf_allocate_dynamic_relocations (dynobj, - hmips->possibly_dynamic_relocs); - - /* For a function, create a stub, if needed. */ - if (h->type == STT_FUNC - || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) - { - if (! elf_hash_table (info)->dynamic_sections_created) - return true; - - /* If this symbol is not defined in a regular file, then set - the symbol to the stub location. This is required to make - function pointers compare as equal between the normal - executable and the shared library. */ - if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - { - /* We need .stub section. */ - s = bfd_get_section_by_name (dynobj, - MIPS_ELF_STUB_SECTION_NAME (dynobj)); - BFD_ASSERT (s != NULL); - - h->root.u.def.section = s; - h->root.u.def.value = s->_raw_size; - - /* XXX Write this stub address somewhere. */ - h->plt.offset = s->_raw_size; - - /* Make room for this stub code. */ - s->_raw_size += MIPS_FUNCTION_STUB_SIZE; - - /* The last half word of the stub will be filled with the index - of this symbol in .dynsym section. */ - return true; - } - } - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->weakdef != NULL) - { - BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined - || h->weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->weakdef->root.u.def.section; - h->root.u.def.value = h->weakdef->root.u.def.value; - return true; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - return true; -} - -/* This function is called after all the input files have been read, - and the input sections have been assigned to output sections. We - check for any mips16 stub sections that we can discard. */ - -static boolean mips_elf_check_mips16_stubs - PARAMS ((struct mips_elf_link_hash_entry *, PTR)); - -boolean -_bfd_mips_elf_always_size_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - asection *ri; - - /* The .reginfo section has a fixed size. */ - ri = bfd_get_section_by_name (output_bfd, ".reginfo"); - if (ri != NULL) - bfd_set_section_size (output_bfd, ri, sizeof (Elf32_External_RegInfo)); - - if (info->relocateable - || ! mips_elf_hash_table (info)->mips16_stubs_seen) - return true; - - mips_elf_link_hash_traverse (mips_elf_hash_table (info), - mips_elf_check_mips16_stubs, - (PTR) NULL); - - return true; -} - -/* Check the mips16 stubs for a particular symbol, and see if we can - discard them. */ - -/*ARGSUSED*/ -static boolean -mips_elf_check_mips16_stubs (h, data) - struct mips_elf_link_hash_entry *h; - PTR data ATTRIBUTE_UNUSED; -{ - if (h->fn_stub != NULL - && ! h->need_fn_stub) - { - /* We don't need the fn_stub; the only references to this symbol - are 16 bit calls. Clobber the size to 0 to prevent it from - being included in the link. */ - h->fn_stub->_raw_size = 0; - h->fn_stub->_cooked_size = 0; - h->fn_stub->flags &= ~ SEC_RELOC; - h->fn_stub->reloc_count = 0; - h->fn_stub->flags |= SEC_EXCLUDE; - } - - if (h->call_stub != NULL - && h->root.other == STO_MIPS16) - { - /* We don't need the call_stub; this is a 16 bit function, so - calls from other 16 bit functions are OK. Clobber the size - to 0 to prevent it from being included in the link. */ - h->call_stub->_raw_size = 0; - h->call_stub->_cooked_size = 0; - h->call_stub->flags &= ~ SEC_RELOC; - h->call_stub->reloc_count = 0; - h->call_stub->flags |= SEC_EXCLUDE; - } - - if (h->call_fp_stub != NULL - && h->root.other == STO_MIPS16) - { - /* We don't need the call_stub; this is a 16 bit function, so - calls from other 16 bit functions are OK. Clobber the size - to 0 to prevent it from being included in the link. */ - h->call_fp_stub->_raw_size = 0; - h->call_fp_stub->_cooked_size = 0; - h->call_fp_stub->flags &= ~ SEC_RELOC; - h->call_fp_stub->reloc_count = 0; - h->call_fp_stub->flags |= SEC_EXCLUDE; - } - - return true; -} - -/* Set the sizes of the dynamic sections. */ - -boolean -_bfd_mips_elf_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - bfd *dynobj; - asection *s; - boolean reltext; - struct mips_got_info *g = NULL; - - dynobj = elf_hash_table (info)->dynobj; - BFD_ASSERT (dynobj != NULL); - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Set the contents of the .interp section to the interpreter. */ - if (! info->shared) - { - s = bfd_get_section_by_name (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->_raw_size - = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1; - s->contents - = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd); - } - } - - /* The check_relocs and adjust_dynamic_symbol entry points have - determined the sizes of the various dynamic sections. Allocate - memory for them. */ - reltext = false; - for (s = dynobj->sections; s != NULL; s = s->next) - { - const char *name; - boolean strip; - - /* It's OK to base decisions on the section name, because none - of the dynobj section names depend upon the input files. */ - name = bfd_get_section_name (dynobj, s); - - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - strip = false; - - if (strncmp (name, ".rel", 4) == 0) - { - if (s->_raw_size == 0) - { - /* We only strip the section if the output section name - has the same name. Otherwise, there might be several - input sections for this output section. FIXME: This - code is probably not needed these days anyhow, since - the linker now does not create empty output sections. */ - if (s->output_section != NULL - && strcmp (name, - bfd_get_section_name (s->output_section->owner, - s->output_section)) == 0) - strip = true; - } - else - { - const char *outname; - asection *target; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL entry. - If the relocation section is .rel.dyn, we always - assert a DT_TEXTREL entry rather than testing whether - there exists a relocation to a read only section or - not. */ - outname = bfd_get_section_name (output_bfd, - s->output_section); - target = bfd_get_section_by_name (output_bfd, outname + 4); - if ((target != NULL - && (target->flags & SEC_READONLY) != 0 - && (target->flags & SEC_ALLOC) != 0) - || strcmp (outname, - MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0) - reltext = true; - - /* We use the reloc_count field as a counter if we need - to copy relocs into the output file. */ - if (strcmp (name, - MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0) - s->reloc_count = 0; - } - } - else if (strncmp (name, ".got", 4) == 0) - { - int i; - bfd_size_type loadable_size = 0; - bfd_size_type local_gotno; - struct _bfd *sub; - - BFD_ASSERT (elf_section_data (s) != NULL); - g = (struct mips_got_info *) elf_section_data (s)->tdata; - BFD_ASSERT (g != NULL); - - /* Calculate the total loadable size of the output. That - will give us the maximum number of GOT_PAGE entries - required. */ - for (sub = info->input_bfds; sub; sub = sub->link_next) - { - asection *subsection; - - for (subsection = sub->sections; - subsection; - subsection = subsection->next) - { - if ((subsection->flags & SEC_ALLOC) == 0) - continue; - loadable_size += (subsection->_raw_size + 0xf) & ~0xf; - } - } - loadable_size += MIPS_FUNCTION_STUB_SIZE; - - /* Assume there are two loadable segments consisting of - contiguous sections. Is 5 enough? */ - local_gotno = (loadable_size >> 16) + 5; - if (IRIX_COMPAT (output_bfd) == ict_irix6) - /* It's possible we will need GOT_PAGE entries as well as - GOT16 entries. Often, these will be able to share GOT - entries, but not always. */ - local_gotno *= 2; - - g->local_gotno += local_gotno; - s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj); - - /* There has to be a global GOT entry for every symbol with - a dynamic symbol table index of DT_MIPS_GOTSYM or - higher. Therefore, it make sense to put those symbols - that need GOT entries at the end of the symbol table. We - do that here. */ - if (!mips_elf_sort_hash_table (info, 1)) - return false; - - if (g->global_gotsym != NULL) - i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx; - else - /* If there are no global symbols, or none requiring - relocations, then GLOBAL_GOTSYM will be NULL. */ - i = 0; - g->global_gotno = i; - s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj); - } - else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0) - { - /* Irix rld assumes that the function stub isn't at the end - of .text section. So put a dummy. XXX */ - s->_raw_size += MIPS_FUNCTION_STUB_SIZE; - } - else if (! info->shared - && ! mips_elf_hash_table (info)->use_rld_obj_head - && strncmp (name, ".rld_map", 8) == 0) - { - /* We add a room for __rld_map. It will be filled in by the - rtld to contain a pointer to the _r_debug structure. */ - s->_raw_size += 4; - } - else if (SGI_COMPAT (output_bfd) - && strncmp (name, ".compact_rel", 12) == 0) - s->_raw_size += mips_elf_hash_table (info)->compact_rel_size; - else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)) - == 0) - s->_raw_size = (sizeof (Elf32_External_Msym) - * (elf_hash_table (info)->dynsymcount - + bfd_count_sections (output_bfd))); - else if (strncmp (name, ".init", 5) != 0) - { - /* It's not one of our sections, so don't allocate space. */ - continue; - } - - if (strip) - { - _bfd_strip_section_from_output (info, s); - continue; - } - - /* Allocate memory for the section contents. */ - s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); - if (s->contents == NULL && s->_raw_size != 0) - { - bfd_set_error (bfd_error_no_memory); - return false; - } - } - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Add some entries to the .dynamic section. We fill in the - values later, in elf_mips_finish_dynamic_sections, but we - must add the entries now so that we get the correct size for - the .dynamic section. The DT_DEBUG entry is filled in by the - dynamic linker and used by the debugger. */ - if (! info->shared) - { - if (SGI_COMPAT (output_bfd)) - { - /* SGI object has the equivalence of DT_DEBUG in the - DT_MIPS_RLD_MAP entry. */ - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0)) - return false; - } - else - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0)) - return false; - } - - if (reltext) - { - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0)) - return false; - } - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0)) - return false; - - if (bfd_get_section_by_name (dynobj, - MIPS_ELF_REL_DYN_SECTION_NAME (dynobj))) - { - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0)) - return false; - } - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0)) - return false; - - if (bfd_get_section_by_name (dynobj, ".conflict") != NULL) - { - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0)) - return false; - - s = bfd_get_section_by_name (dynobj, ".liblist"); - BFD_ASSERT (s != NULL); - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0)) - return false; - } - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0)) - return false; - -#if 0 - /* Time stamps in executable files are a bad idea. */ - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0)) - return false; -#endif - -#if 0 /* FIXME */ - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0)) - return false; -#endif - -#if 0 /* FIXME */ - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0)) - return false; -#endif - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0)) - return false; - - if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0)) - return false; - - if (IRIX_COMPAT (dynobj) == ict_irix5 - && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0)) - return false; - - if (IRIX_COMPAT (dynobj) == ict_irix6 - && (bfd_get_section_by_name - (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj))) - && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0)) - return false; - - if (bfd_get_section_by_name (dynobj, - MIPS_ELF_MSYM_SECTION_NAME (dynobj)) - && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0)) - return false; - } - - return true; -} - -/* If NAME is one of the special IRIX6 symbols defined by the linker, - adjust it appropriately now. */ - -static void -mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym) - bfd *abfd ATTRIBUTE_UNUSED; - const char *name; - Elf_Internal_Sym *sym; -{ - /* The linker script takes care of providing names and values for - these, but we must place them into the right sections. */ - static const char* const text_section_symbols[] = { - "_ftext", - "_etext", - "__dso_displacement", - "__elf_header", - "__program_header_table", - NULL - }; - - static const char* const data_section_symbols[] = { - "_fdata", - "_edata", - "_end", - "_fbss", - NULL - }; - - const char* const *p; - int i; - - for (i = 0; i < 2; ++i) - for (p = (i == 0) ? text_section_symbols : data_section_symbols; - *p; - ++p) - if (strcmp (*p, name) == 0) - { - /* All of these symbols are given type STT_SECTION by the - IRIX6 linker. */ - sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); - - /* The IRIX linker puts these symbols in special sections. */ - if (i == 0) - sym->st_shndx = SHN_MIPS_TEXT; - else - sym->st_shndx = SHN_MIPS_DATA; - - break; - } -} - -/* Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ - -boolean -_bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym) - bfd *output_bfd; - struct bfd_link_info *info; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; -{ - bfd *dynobj; - bfd_vma gval; - asection *sgot; - asection *smsym; - struct mips_got_info *g; - const char *name; - struct mips_elf_link_hash_entry *mh; - - dynobj = elf_hash_table (info)->dynobj; - gval = sym->st_value; - mh = (struct mips_elf_link_hash_entry *) h; - - if (h->plt.offset != (bfd_vma) -1) - { - asection *s; - bfd_byte *p; - bfd_byte stub[MIPS_FUNCTION_STUB_SIZE]; - - /* This symbol has a stub. Set it up. */ - - BFD_ASSERT (h->dynindx != -1); - - s = bfd_get_section_by_name (dynobj, - MIPS_ELF_STUB_SECTION_NAME (dynobj)); - BFD_ASSERT (s != NULL); - - /* Fill the stub. */ - p = stub; - bfd_put_32 (output_bfd, STUB_LW(output_bfd), p); - p += 4; - bfd_put_32 (output_bfd, STUB_MOVE, p); - p += 4; - - /* FIXME: Can h->dynindex be more than 64K? */ - if (h->dynindx & 0xffff0000) - return false; - - bfd_put_32 (output_bfd, STUB_JALR, p); - p += 4; - bfd_put_32 (output_bfd, STUB_LI16 + h->dynindx, p); - - BFD_ASSERT (h->plt.offset <= s->_raw_size); - memcpy (s->contents + h->plt.offset, stub, MIPS_FUNCTION_STUB_SIZE); - - /* Mark the symbol as undefined. plt.offset != -1 occurs - only for the referenced symbol. */ - sym->st_shndx = SHN_UNDEF; - - /* The run-time linker uses the st_value field of the symbol - to reset the global offset table entry for this external - to its stub address when unlinking a shared object. */ - gval = s->output_section->vma + s->output_offset + h->plt.offset; - sym->st_value = gval; - } - - BFD_ASSERT (h->dynindx != -1); - - sgot = mips_elf_got_section (dynobj); - BFD_ASSERT (sgot != NULL); - BFD_ASSERT (elf_section_data (sgot) != NULL); - g = (struct mips_got_info *) elf_section_data (sgot)->tdata; - BFD_ASSERT (g != NULL); - - /* Run through the global symbol table, creating GOT entries for all - the symbols that need them. */ - if (g->global_gotsym != NULL - && h->dynindx >= g->global_gotsym->dynindx) - { - bfd_vma offset; - bfd_vma value; - - if (sym->st_value) - value = sym->st_value; - else - /* For an entity defined in a shared object, this will be - NULL. (For functions in shared objects for - which we have created stubs, ST_VALUE will be non-NULL. - That's because such the functions are now no longer defined - in a shared object.) */ - value = h->root.u.def.value; - - offset = mips_elf_global_got_index (dynobj, h); - MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset); - } - - /* Create a .msym entry, if appropriate. */ - smsym = bfd_get_section_by_name (dynobj, - MIPS_ELF_MSYM_SECTION_NAME (dynobj)); - if (smsym) - { - Elf32_Internal_Msym msym; - - msym.ms_hash_value = bfd_elf_hash (h->root.root.string); - /* It is undocumented what the `1' indicates, but IRIX6 uses - this value. */ - msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1); - bfd_mips_elf_swap_msym_out - (dynobj, &msym, - ((Elf32_External_Msym *) smsym->contents) + h->dynindx); - } - - /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ - name = h->root.root.string; - if (strcmp (name, "_DYNAMIC") == 0 - || strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0) - sym->st_shndx = SHN_ABS; - else if (strcmp (name, "_DYNAMIC_LINK") == 0) - { - sym->st_shndx = SHN_ABS; - sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); - sym->st_value = 1; - } - else if (SGI_COMPAT (output_bfd)) - { - if (strcmp (name, "_gp_disp") == 0) - { - sym->st_shndx = SHN_ABS; - sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); - sym->st_value = elf_gp (output_bfd); - } - else if (strcmp (name, mips_elf_dynsym_rtproc_names[0]) == 0 - || strcmp (name, mips_elf_dynsym_rtproc_names[1]) == 0) - { - sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); - sym->st_other = STO_PROTECTED; - sym->st_value = 0; - sym->st_shndx = SHN_MIPS_DATA; - } - else if (strcmp (name, mips_elf_dynsym_rtproc_names[2]) == 0) - { - sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION); - sym->st_other = STO_PROTECTED; - sym->st_value = mips_elf_hash_table (info)->procedure_count; - sym->st_shndx = SHN_ABS; - } - else if (sym->st_shndx != SHN_UNDEF && sym->st_shndx != SHN_ABS) - { - if (h->type == STT_FUNC) - sym->st_shndx = SHN_MIPS_TEXT; - else if (h->type == STT_OBJECT) - sym->st_shndx = SHN_MIPS_DATA; - } - } - - /* Handle the IRIX6-specific symbols. */ - if (IRIX_COMPAT (output_bfd) == ict_irix6) - mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym); - - if (SGI_COMPAT (output_bfd) - && ! info->shared) - { - if (! mips_elf_hash_table (info)->use_rld_obj_head - && strcmp (name, "__rld_map") == 0) - { - asection *s = bfd_get_section_by_name (dynobj, ".rld_map"); - BFD_ASSERT (s != NULL); - sym->st_value = s->output_section->vma + s->output_offset; - bfd_put_32 (output_bfd, (bfd_vma) 0, s->contents); - if (mips_elf_hash_table (info)->rld_value == 0) - mips_elf_hash_table (info)->rld_value = sym->st_value; - } - else if (mips_elf_hash_table (info)->use_rld_obj_head - && strcmp (name, "__rld_obj_head") == 0) - { - /* IRIX6 does not use a .rld_map section. */ - if (IRIX_COMPAT (output_bfd) == ict_irix5) - BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map") - != NULL); - mips_elf_hash_table (info)->rld_value = sym->st_value; - } - } - - /* If this is a mips16 symbol, force the value to be even. */ - if (sym->st_other == STO_MIPS16 - && (sym->st_value & 1) != 0) - --sym->st_value; - - return true; -} - -/* Finish up the dynamic sections. */ - -boolean -_bfd_mips_elf_finish_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - bfd *dynobj; - asection *sdyn; - asection *sgot; - struct mips_got_info *g; - - dynobj = elf_hash_table (info)->dynobj; - - sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); - - sgot = mips_elf_got_section (dynobj); - if (sgot == NULL) - g = NULL; - else - { - BFD_ASSERT (elf_section_data (sgot) != NULL); - g = (struct mips_got_info *) elf_section_data (sgot)->tdata; - BFD_ASSERT (g != NULL); - } - - if (elf_hash_table (info)->dynamic_sections_created) - { - bfd_byte *b; - - BFD_ASSERT (sdyn != NULL); - BFD_ASSERT (g != NULL); - - for (b = sdyn->contents; - b < sdyn->contents + sdyn->_raw_size; - b += MIPS_ELF_DYN_SIZE (dynobj)) - { - Elf_Internal_Dyn dyn; - const char *name; - size_t elemsize; - asection *s; - boolean swap_out_p; - - /* Read in the current dynamic entry. */ - (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn); - - /* Assume that we're going to modify it and write it out. */ - swap_out_p = true; - - switch (dyn.d_tag) - { - case DT_RELENT: - s = (bfd_get_section_by_name - (dynobj, - MIPS_ELF_REL_DYN_SECTION_NAME (dynobj))); - BFD_ASSERT (s != NULL); - dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj); - break; - - case DT_STRSZ: - /* Rewrite DT_STRSZ. */ - dyn.d_un.d_val = - _bfd_stringtab_size (elf_hash_table (info)->dynstr); - break; - - case DT_PLTGOT: - name = ".got"; - goto get_vma; - case DT_MIPS_CONFLICT: - name = ".conflict"; - goto get_vma; - case DT_MIPS_LIBLIST: - name = ".liblist"; - get_vma: - s = bfd_get_section_by_name (output_bfd, name); - BFD_ASSERT (s != NULL); - dyn.d_un.d_ptr = s->vma; - break; - - case DT_MIPS_RLD_VERSION: - dyn.d_un.d_val = 1; /* XXX */ - break; - - case DT_MIPS_FLAGS: - dyn.d_un.d_val = RHF_NOTPOT; /* XXX */ - break; - - case DT_MIPS_CONFLICTNO: - name = ".conflict"; - elemsize = sizeof (Elf32_Conflict); - goto set_elemno; - - case DT_MIPS_LIBLISTNO: - name = ".liblist"; - elemsize = sizeof (Elf32_Lib); - set_elemno: - s = bfd_get_section_by_name (output_bfd, name); - if (s != NULL) - { - if (s->_cooked_size != 0) - dyn.d_un.d_val = s->_cooked_size / elemsize; - else - dyn.d_un.d_val = s->_raw_size / elemsize; - } - else - dyn.d_un.d_val = 0; - break; - - case DT_MIPS_TIME_STAMP: - time ((time_t *) &dyn.d_un.d_val); - break; - - case DT_MIPS_ICHECKSUM: - /* XXX FIXME: */ - swap_out_p = false; - break; - - case DT_MIPS_IVERSION: - /* XXX FIXME: */ - swap_out_p = false; - break; - - case DT_MIPS_BASE_ADDRESS: - s = output_bfd->sections; - BFD_ASSERT (s != NULL); - dyn.d_un.d_ptr = s->vma & ~(0xffff); - break; - - case DT_MIPS_LOCAL_GOTNO: - dyn.d_un.d_val = g->local_gotno; - break; - - case DT_MIPS_UNREFEXTNO: - /* The index into the dynamic symbol table which is the - entry of the first external symbol that is not - referenced within the same object. */ - dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1; - break; - - case DT_MIPS_GOTSYM: - if (g->global_gotsym) - { - dyn.d_un.d_val = g->global_gotsym->dynindx; - break; - } - /* In case if we don't have global got symbols we default - to setting DT_MIPS_GOTSYM to the same value as - DT_MIPS_SYMTABNO, so we just fall through. */ - - case DT_MIPS_SYMTABNO: - name = ".dynsym"; - elemsize = MIPS_ELF_SYM_SIZE (output_bfd); - s = bfd_get_section_by_name (output_bfd, name); - BFD_ASSERT (s != NULL); - - if (s->_cooked_size != 0) - dyn.d_un.d_val = s->_cooked_size / elemsize; - else - dyn.d_un.d_val = s->_raw_size / elemsize; - break; - - case DT_MIPS_HIPAGENO: - dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO; - break; - - case DT_MIPS_RLD_MAP: - dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value; - break; - - case DT_MIPS_OPTIONS: - s = (bfd_get_section_by_name - (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd))); - dyn.d_un.d_ptr = s->vma; - break; - - case DT_MIPS_MSYM: - s = (bfd_get_section_by_name - (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))); - dyn.d_un.d_ptr = s->vma; - break; - - default: - swap_out_p = false; - break; - } - - if (swap_out_p) - (*get_elf_backend_data (dynobj)->s->swap_dyn_out) - (dynobj, &dyn, b); - } - } - - /* The first entry of the global offset table will be filled at - runtime. The second entry will be used by some runtime loaders. - This isn't the case of Irix rld. */ - if (sgot != NULL && sgot->_raw_size > 0) - { - MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents); - MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000, - sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd)); - } - - if (sgot != NULL) - elf_section_data (sgot->output_section)->this_hdr.sh_entsize - = MIPS_ELF_GOT_SIZE (output_bfd); - - { - asection *smsym; - asection *s; - Elf32_compact_rel cpt; - - /* ??? The section symbols for the output sections were set up in - _bfd_elf_final_link. SGI sets the STT_NOTYPE attribute for these - symbols. Should we do so? */ - - smsym = bfd_get_section_by_name (dynobj, - MIPS_ELF_MSYM_SECTION_NAME (dynobj)); - if (smsym != NULL) - { - Elf32_Internal_Msym msym; - - msym.ms_hash_value = 0; - msym.ms_info = ELF32_MS_INFO (0, 1); - - for (s = output_bfd->sections; s != NULL; s = s->next) - { - long dynindx = elf_section_data (s)->dynindx; - - bfd_mips_elf_swap_msym_out - (output_bfd, &msym, - (((Elf32_External_Msym *) smsym->contents) - + dynindx)); - } - } - - if (SGI_COMPAT (output_bfd)) - { - /* Write .compact_rel section out. */ - s = bfd_get_section_by_name (dynobj, ".compact_rel"); - if (s != NULL) - { - cpt.id1 = 1; - cpt.num = s->reloc_count; - cpt.id2 = 2; - cpt.offset = (s->output_section->filepos - + sizeof (Elf32_External_compact_rel)); - cpt.reserved0 = 0; - cpt.reserved1 = 0; - bfd_elf32_swap_compact_rel_out (output_bfd, &cpt, - ((Elf32_External_compact_rel *) - s->contents)); - - /* Clean up a dummy stub function entry in .text. */ - s = bfd_get_section_by_name (dynobj, - MIPS_ELF_STUB_SECTION_NAME (dynobj)); - if (s != NULL) - { - file_ptr dummy_offset; - - BFD_ASSERT (s->_raw_size >= MIPS_FUNCTION_STUB_SIZE); - dummy_offset = s->_raw_size - MIPS_FUNCTION_STUB_SIZE; - memset (s->contents + dummy_offset, 0, - MIPS_FUNCTION_STUB_SIZE); - } - } - } - - /* Clean up a first relocation in .rel.dyn. */ - s = bfd_get_section_by_name (dynobj, - MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)); - if (s != NULL && s->_raw_size > 0) - memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj)); - } - - return true; -} - -/* This is almost identical to bfd_generic_get_... except that some - MIPS relocations need to be handled specially. Sigh. */ - -static bfd_byte * -elf32_mips_get_relocated_section_contents (abfd, link_info, link_order, data, - relocateable, symbols) - bfd *abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - bfd_byte *data; - boolean relocateable; - asymbol **symbols; -{ - /* Get enough memory to hold the stuff */ - bfd *input_bfd = link_order->u.indirect.section->owner; - asection *input_section = link_order->u.indirect.section; - - long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); - arelent **reloc_vector = NULL; - long reloc_count; - - if (reloc_size < 0) - goto error_return; - - reloc_vector = (arelent **) bfd_malloc (reloc_size); - if (reloc_vector == NULL && reloc_size != 0) - goto error_return; - - /* read in the section */ - if (!bfd_get_section_contents (input_bfd, - input_section, - (PTR) data, - 0, - input_section->_raw_size)) - goto error_return; - - /* We're not relaxing the section, so just copy the size info */ - input_section->_cooked_size = input_section->_raw_size; - input_section->reloc_done = true; - - reloc_count = bfd_canonicalize_reloc (input_bfd, - input_section, - reloc_vector, - symbols); - if (reloc_count < 0) - goto error_return; - - if (reloc_count > 0) - { - arelent **parent; - /* for mips */ - int gp_found; - bfd_vma gp = 0x12345678; /* initialize just to shut gcc up */ - - { - struct bfd_hash_entry *h; - struct bfd_link_hash_entry *lh; - /* Skip all this stuff if we aren't mixing formats. */ - if (abfd && input_bfd - && abfd->xvec == input_bfd->xvec) - lh = 0; - else - { - h = bfd_hash_lookup (&link_info->hash->table, "_gp", false, false); - lh = (struct bfd_link_hash_entry *) h; - } - lookup: - if (lh) - { - switch (lh->type) - { - case bfd_link_hash_undefined: - case bfd_link_hash_undefweak: - case bfd_link_hash_common: - gp_found = 0; - break; - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - gp_found = 1; - gp = lh->u.def.value; - break; - case bfd_link_hash_indirect: - case bfd_link_hash_warning: - lh = lh->u.i.link; - /* @@FIXME ignoring warning for now */ - goto lookup; - case bfd_link_hash_new: - default: - abort (); - } - } - else - gp_found = 0; - } - /* end mips */ - for (parent = reloc_vector; *parent != (arelent *) NULL; - parent++) - { - char *error_message = (char *) NULL; - bfd_reloc_status_type r; - - /* Specific to MIPS: Deal with relocation types that require - knowing the gp of the output bfd. */ - asymbol *sym = *(*parent)->sym_ptr_ptr; - if (bfd_is_abs_section (sym->section) && abfd) - { - /* The special_function wouldn't get called anyways. */ - } - else if (!gp_found) - { - /* The gp isn't there; let the special function code - fall over on its own. */ - } - else if ((*parent)->howto->special_function - == _bfd_mips_elf_gprel16_reloc) - { - /* bypass special_function call */ - r = gprel16_with_gp (input_bfd, sym, *parent, input_section, - relocateable, (PTR) data, gp); - goto skip_bfd_perform_relocation; - } - /* end mips specific stuff */ - - r = bfd_perform_relocation (input_bfd, - *parent, - (PTR) data, - input_section, - relocateable ? abfd : (bfd *) NULL, - &error_message); - skip_bfd_perform_relocation: - - if (relocateable) - { - asection *os = input_section->output_section; - - /* A partial link, so keep the relocs */ - os->orelocation[os->reloc_count] = *parent; - os->reloc_count++; - } - - if (r != bfd_reloc_ok) - { - switch (r) - { - case bfd_reloc_undefined: - if (!((*link_info->callbacks->undefined_symbol) - (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), - input_bfd, input_section, (*parent)->address, - true))) - goto error_return; - break; - case bfd_reloc_dangerous: - BFD_ASSERT (error_message != (char *) NULL); - if (!((*link_info->callbacks->reloc_dangerous) - (link_info, error_message, input_bfd, input_section, - (*parent)->address))) - goto error_return; - break; - case bfd_reloc_overflow: - if (!((*link_info->callbacks->reloc_overflow) - (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr), - (*parent)->howto->name, (*parent)->addend, - input_bfd, input_section, (*parent)->address))) - goto error_return; - break; - case bfd_reloc_outofrange: - default: - abort (); - break; - } - - } - } - } - if (reloc_vector != NULL) - free (reloc_vector); - return data; - -error_return: - if (reloc_vector != NULL) - free (reloc_vector); - return NULL; -} -#define bfd_elf32_bfd_get_relocated_section_contents \ - elf32_mips_get_relocated_section_contents - -/* ECOFF swapping routines. These are used when dealing with the - .mdebug section, which is in the ECOFF debugging format. */ -static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = -{ - /* Symbol table magic number. */ - magicSym, - /* Alignment of debugging information. E.g., 4. */ - 4, - /* Sizes of external symbolic information. */ - sizeof (struct hdr_ext), - sizeof (struct dnr_ext), - sizeof (struct pdr_ext), - sizeof (struct sym_ext), - sizeof (struct opt_ext), - sizeof (struct fdr_ext), - sizeof (struct rfd_ext), - sizeof (struct ext_ext), - /* Functions to swap in external symbolic data. */ - ecoff_swap_hdr_in, - ecoff_swap_dnr_in, - ecoff_swap_pdr_in, - ecoff_swap_sym_in, - ecoff_swap_opt_in, - ecoff_swap_fdr_in, - ecoff_swap_rfd_in, - ecoff_swap_ext_in, - _bfd_ecoff_swap_tir_in, - _bfd_ecoff_swap_rndx_in, - /* Functions to swap out external symbolic data. */ - ecoff_swap_hdr_out, - ecoff_swap_dnr_out, - ecoff_swap_pdr_out, - ecoff_swap_sym_out, - ecoff_swap_opt_out, - ecoff_swap_fdr_out, - ecoff_swap_rfd_out, - ecoff_swap_ext_out, - _bfd_ecoff_swap_tir_out, - _bfd_ecoff_swap_rndx_out, - /* Function to read in symbolic data. */ - _bfd_mips_elf_read_ecoff_info -}; - -#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec -#define TARGET_LITTLE_NAME "elf32-littlemips" -#define TARGET_BIG_SYM bfd_elf32_bigmips_vec -#define TARGET_BIG_NAME "elf32-bigmips" -#define ELF_ARCH bfd_arch_mips -#define ELF_MACHINE_CODE EM_MIPS - -/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses - a value of 0x1000, and we are compatible. */ -#define ELF_MAXPAGESIZE 0x1000 - -#define elf_backend_collect true -#define elf_backend_type_change_ok true -#define elf_backend_can_gc_sections true -#define elf_backend_sign_extend_vma true -#define elf_info_to_howto mips_info_to_howto_rela -#define elf_info_to_howto_rel mips_info_to_howto_rel -#define elf_backend_sym_is_global mips_elf_sym_is_global -#define elf_backend_object_p _bfd_mips_elf_object_p -#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr -#define elf_backend_fake_sections _bfd_mips_elf_fake_sections -#define elf_backend_section_from_bfd_section \ - _bfd_mips_elf_section_from_bfd_section -#define elf_backend_section_processing _bfd_mips_elf_section_processing -#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing -#define elf_backend_additional_program_headers \ - _bfd_mips_elf_additional_program_headers -#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map -#define elf_backend_final_write_processing \ - _bfd_mips_elf_final_write_processing -#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap -#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook -#define elf_backend_create_dynamic_sections \ - _bfd_mips_elf_create_dynamic_sections -#define elf_backend_check_relocs _bfd_mips_elf_check_relocs -#define elf_backend_adjust_dynamic_symbol \ - _bfd_mips_elf_adjust_dynamic_symbol -#define elf_backend_always_size_sections \ - _bfd_mips_elf_always_size_sections -#define elf_backend_size_dynamic_sections \ - _bfd_mips_elf_size_dynamic_sections -#define elf_backend_relocate_section _bfd_mips_elf_relocate_section -#define elf_backend_link_output_symbol_hook \ - _bfd_mips_elf_link_output_symbol_hook -#define elf_backend_finish_dynamic_symbol \ - _bfd_mips_elf_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections \ - _bfd_mips_elf_finish_dynamic_sections -#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook - -#define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO) -#define elf_backend_plt_header_size 0 - -#define bfd_elf32_bfd_is_local_label_name \ - mips_elf_is_local_label_name -#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line -#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents -#define bfd_elf32_bfd_link_hash_table_create \ - _bfd_mips_elf_link_hash_table_create -#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link -#define bfd_elf32_bfd_copy_private_bfd_data \ - _bfd_mips_elf_copy_private_bfd_data -#define bfd_elf32_bfd_merge_private_bfd_data \ - _bfd_mips_elf_merge_private_bfd_data -#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags -#define bfd_elf32_bfd_print_private_bfd_data \ - _bfd_mips_elf_print_private_bfd_data -#include "elf32-target.h" diff --git a/contrib/binutils/bfd/elf32-sh.c b/contrib/binutils/bfd/elf32-sh.c deleted file mode 100644 index 71538036453e9..0000000000000 --- a/contrib/binutils/bfd/elf32-sh.c +++ /dev/null @@ -1,1909 +0,0 @@ -/* Hitachi SH specific support for 32-bit ELF - Copyright 1996, 1997, 1998 Free Software Foundation, Inc. - Contributed by Ian Lance Taylor, Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "elf-bfd.h" - -static bfd_reloc_status_type sh_elf_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static bfd_reloc_status_type sh_elf_ignore_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static reloc_howto_type *sh_elf_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -static void sh_elf_info_to_howto - PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static boolean sh_elf_relax_section - PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); -static boolean sh_elf_relax_delete_bytes - PARAMS ((bfd *, asection *, bfd_vma, int)); -static boolean sh_elf_align_loads - PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, boolean *)); -static boolean sh_elf_swap_insns - PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma)); -static boolean sh_elf_relocate_section - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static bfd_byte *sh_elf_get_relocated_section_contents - PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, - bfd_byte *, boolean, asymbol **)); - -enum sh_reloc_type -{ - R_SH_NONE = 0, - R_SH_DIR32, - R_SH_REL32, - R_SH_DIR8WPN, - R_SH_IND12W, - R_SH_DIR8WPL, - R_SH_DIR8WPZ, - R_SH_DIR8BP, - R_SH_DIR8W, - R_SH_DIR8L, - FIRST_INVALID_RELOC, - LAST_INVALID_RELOC = 24, - /* The remaining relocs are a GNU extension used for relaxation. We - use the same constants as COFF uses, not that it really matters. */ - R_SH_SWITCH16 = 25, - R_SH_SWITCH32, - R_SH_USES, - R_SH_COUNT, - R_SH_ALIGN, - R_SH_CODE, - R_SH_DATA, - R_SH_LABEL, - R_SH_max -}; - -static reloc_howto_type sh_elf_howto_table[] = -{ - /* No relocation. */ - HOWTO (R_SH_NONE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit absolute relocation. Setting partial_inplace to true and - src_mask to a non-zero value is similar to the COFF toolchain. */ - HOWTO (R_SH_DIR32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit PC relative relocation. */ - HOWTO (R_SH_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_REL32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit PC relative branch divided by 2. */ - HOWTO (R_SH_DIR8WPN, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8WPN", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 12 bit PC relative branch divided by 2. */ - HOWTO (R_SH_IND12W, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 12, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_IND12W", /* name */ - true, /* partial_inplace */ - 0xfff, /* src_mask */ - 0xfff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit unsigned PC relative divided by 4. */ - HOWTO (R_SH_DIR8WPL, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8WPL", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit unsigned PC relative divided by 2. */ - HOWTO (R_SH_DIR8WPZ, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8WPZ", /* name */ - true, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit GBR relative. FIXME: This only makes sense if we have some - special symbol for the GBR relative area, and that is not - implemented. */ - HOWTO (R_SH_DIR8BP, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8BP", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit GBR relative divided by 2. FIXME: This only makes sense if - we have some special symbol for the GBR relative area, and that - is not implemented. */ - HOWTO (R_SH_DIR8W, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8W", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - /* 8 bit GBR relative divided by 4. FIXME: This only makes sense if - we have some special symbol for the GBR relative area, and that - is not implemented. */ - HOWTO (R_SH_DIR8L, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_reloc, /* special_function */ - "R_SH_DIR8L", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xff, /* dst_mask */ - true), /* pcrel_offset */ - - { 10 }, - { 11 }, - { 12 }, - { 13 }, - { 14 }, - { 15 }, - { 16 }, - { 17 }, - { 18 }, - { 19 }, - { 20 }, - { 21 }, - { 22 }, - { 23 }, - { 24 }, - - /* The remaining relocs are a GNU extension used for relaxing. The - final pass of the linker never needs to do anything with any of - these relocs. Any required operations are handled by the - relaxation code. */ - - /* A 16 bit switch table entry. This is generated for an expression - such as ``.word L1 - L2''. The offset holds the difference - between the reloc address and L2. */ - HOWTO (R_SH_SWITCH16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_SWITCH16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* A 32 bit switch table entry. This is generated for an expression - such as ``.long L1 - L2''. The offset holds the difference - between the reloc address and L2. */ - HOWTO (R_SH_SWITCH32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_SWITCH32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* Indicates a .uses pseudo-op. The compiler will generate .uses - pseudo-ops when it finds a function call which can be relaxed. - The offset field holds the PC relative offset to the instruction - which loads the register used in the function call. */ - HOWTO (R_SH_USES, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_USES", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* The assembler will generate this reloc for addresses referred to - by the register loads associated with USES relocs. The offset - field holds the number of times the address is referenced in the - object file. */ - HOWTO (R_SH_COUNT, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_COUNT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* Indicates an alignment statement. The offset field is the power - of 2 to which subsequent portions of the object file must be - aligned. */ - HOWTO (R_SH_ALIGN, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_ALIGN", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* The assembler will generate this reloc before a block of - instructions. A section should be processed as assumining it - contains data, unless this reloc is seen. */ - HOWTO (R_SH_CODE, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_CODE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* The assembler will generate this reloc after a block of - instructions when it sees data that is not instructions. */ - HOWTO (R_SH_DATA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_DATA", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true), /* pcrel_offset */ - - /* The assembler generates this reloc for each label within a block - of instructions. This permits the linker to avoid swapping - instructions which are the targets of branches. */ - HOWTO (R_SH_LABEL, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - sh_elf_ignore_reloc, /* special_function */ - "R_SH_LABEL", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - true) /* pcrel_offset */ -}; - -/* This function is used for normal relocs. This is like the COFF - function, and is almost certainly incorrect for other ELF targets. */ - -static bfd_reloc_status_type -sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol_in; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - unsigned long insn; - bfd_vma sym_value; - enum sh_reloc_type r_type; - bfd_vma addr = reloc_entry->address; - bfd_byte *hit_data = addr + (bfd_byte *) data; - - r_type = (enum sh_reloc_type) reloc_entry->howto->type; - - if (output_bfd != NULL) - { - /* Partial linking--do nothing. */ - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Almost all relocs have to do with relaxing. If any work must be - done for them, it has been done in sh_relax_section. */ - if (r_type != R_SH_DIR32 - && (r_type != R_SH_IND12W - || (symbol_in->flags & BSF_LOCAL) != 0)) - return bfd_reloc_ok; - - if (symbol_in != NULL - && bfd_is_und_section (symbol_in->section)) - return bfd_reloc_undefined; - - if (bfd_is_com_section (symbol_in->section)) - sym_value = 0; - else - sym_value = (symbol_in->value + - symbol_in->section->output_section->vma + - symbol_in->section->output_offset); - - switch (r_type) - { - case R_SH_DIR32: - insn = bfd_get_32 (abfd, hit_data); - insn += sym_value + reloc_entry->addend; - bfd_put_32 (abfd, insn, hit_data); - break; - case R_SH_IND12W: - insn = bfd_get_16 (abfd, hit_data); - sym_value += reloc_entry->addend; - sym_value -= (input_section->output_section->vma - + input_section->output_offset - + addr - + 4); - sym_value += (insn & 0xfff) << 1; - if (insn & 0x800) - sym_value -= 0x1000; - insn = (insn & 0xf000) | (sym_value & 0xfff); - bfd_put_16 (abfd, insn, hit_data); - if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000) - return bfd_reloc_overflow; - break; - default: - abort (); - break; - } - - return bfd_reloc_ok; -} - -/* This function is used for relocs which are only used for relaxing, - which the linker should otherwise ignore. */ - -static bfd_reloc_status_type -sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - if (output_bfd != NULL) - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; -} - -/* This structure is used to map BFD reloc codes to SH ELF relocs. */ - -struct elf_reloc_map -{ - unsigned char bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -/* An array mapping BFD reloc codes to SH ELF relocs. */ - -static const struct elf_reloc_map sh_reloc_map[] = -{ - { BFD_RELOC_NONE, R_SH_NONE }, - { BFD_RELOC_32, R_SH_DIR32 }, - { BFD_RELOC_CTOR, R_SH_DIR32 }, - { BFD_RELOC_32_PCREL, R_SH_REL32 }, - { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN }, - { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W }, - { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ }, - { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL }, - { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, - { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, - { BFD_RELOC_SH_USES, R_SH_USES }, - { BFD_RELOC_SH_COUNT, R_SH_COUNT }, - { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, - { BFD_RELOC_SH_CODE, R_SH_CODE }, - { BFD_RELOC_SH_DATA, R_SH_DATA }, - { BFD_RELOC_SH_LABEL, R_SH_LABEL } -}; - -/* Given a BFD reloc code, return the howto structure for the - corresponding SH ELf reloc. */ - -static reloc_howto_type * -sh_elf_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ - unsigned int i; - - for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++) - { - if (sh_reloc_map[i].bfd_reloc_val == code) - return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val]; - } - - return NULL; -} - -/* Given an ELF reloc, fill in the howto field of a relent. */ - -static void -sh_elf_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd; - arelent *cache_ptr; - Elf_Internal_Rela *dst; -{ - unsigned int r; - - r = ELF32_R_TYPE (dst->r_info); - - BFD_ASSERT (r < (unsigned int) R_SH_max); - BFD_ASSERT (r < FIRST_INVALID_RELOC || r > LAST_INVALID_RELOC); - - cache_ptr->howto = &sh_elf_howto_table[r]; -} - -/* This function handles relaxing for SH ELF. See the corresponding - function in coff-sh.c for a description of what this does. FIXME: - There is a lot of duplication here between this code and the COFF - specific code. The format of relocs and symbols is wound deeply - into this code, but it would still be better if the duplication - could be eliminated somehow. Note in particular that although both - functions use symbols like R_SH_CODE, those symbols have different - values; in coff-sh.c they come from include/coff/sh.h, whereas here - they come from enum sh_reloc_type in this file. */ - -static boolean -sh_elf_relax_section (abfd, sec, link_info, again) - bfd *abfd; - asection *sec; - struct bfd_link_info *link_info; - boolean *again; -{ - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *free_relocs = NULL; - boolean have_code; - Elf_Internal_Rela *irel, *irelend; - bfd_byte *contents = NULL; - bfd_byte *free_contents = NULL; - Elf32_External_Sym *extsyms = NULL; - Elf32_External_Sym *free_extsyms = NULL; - - *again = false; - - if (link_info->relocateable - || (sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0) - return true; - - /* If this is the first time we have been called for this section, - initialize the cooked size. */ - if (sec->_cooked_size == 0) - sec->_cooked_size = sec->_raw_size; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - - internal_relocs = (_bfd_elf32_link_read_relocs - (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, - link_info->keep_memory)); - if (internal_relocs == NULL) - goto error_return; - if (! link_info->keep_memory) - free_relocs = internal_relocs; - - have_code = false; - - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma laddr, paddr, symval; - unsigned short insn; - Elf_Internal_Rela *irelfn, *irelscan, *irelcount; - bfd_signed_vma foff; - - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE) - have_code = true; - - if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES) - continue; - - /* Get the section contents. */ - if (contents == NULL) - { - if (elf_section_data (sec)->this_hdr.contents != NULL) - contents = elf_section_data (sec)->this_hdr.contents; - else - { - contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (contents == NULL) - goto error_return; - free_contents = contents; - - if (! bfd_get_section_contents (abfd, sec, contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - } - - /* The r_addend field of the R_SH_USES reloc will point us to - the register load. The 4 is because the r_addend field is - computed as though it were a jump offset, which are based - from 4 bytes after the jump instruction. */ - laddr = irel->r_offset + 4 + irel->r_addend; - if (laddr >= sec->_raw_size) - { - (*_bfd_error_handler) ("%s: 0x%lx: warning: bad R_SH_USES offset", - bfd_get_filename (abfd), - (unsigned long) irel->r_offset); - continue; - } - insn = bfd_get_16 (abfd, contents + laddr); - - /* If the instruction is not mov.l NN,rN, we don't know what to - do. */ - if ((insn & 0xf000) != 0xd000) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x", - bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn)); - continue; - } - - /* Get the address from which the register is being loaded. The - displacement in the mov.l instruction is quadrupled. It is a - displacement from four bytes after the movl instruction, but, - before adding in the PC address, two least significant bits - of the PC are cleared. We assume that the section is aligned - on a four byte boundary. */ - paddr = insn & 0xff; - paddr *= 4; - paddr += (laddr + 4) &~ 3; - if (paddr >= sec->_raw_size) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: bad R_SH_USES load offset", - bfd_get_filename (abfd), (unsigned long) irel->r_offset)); - continue; - } - - /* Get the reloc for the address from which the register is - being loaded. This reloc will tell us which function is - actually being called. */ - for (irelfn = internal_relocs; irelfn < irelend; irelfn++) - if (irelfn->r_offset == paddr - && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32) - break; - if (irelfn >= irelend) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: could not find expected reloc", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* Read this BFD's symbols if we haven't done so already. */ - if (extsyms == NULL) - { - if (symtab_hdr->contents != NULL) - extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - else - { - extsyms = ((Elf32_External_Sym *) - bfd_malloc (symtab_hdr->sh_size)); - if (extsyms == NULL) - goto error_return; - free_extsyms = extsyms; - if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd) - != symtab_hdr->sh_size)) - goto error_return; - } - } - - /* Get the value of the symbol referred to by the reloc. */ - if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) - { - Elf_Internal_Sym isym; - - /* A local symbol. */ - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irelfn->r_info), - &isym); - - if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec)) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: symbol in unexpected section", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - symval = (isym.st_value - + sec->output_section->vma - + sec->output_offset); - } - else - { - unsigned long indx; - struct elf_link_hash_entry *h; - - indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info; - h = elf_sym_hashes (abfd)[indx]; - BFD_ASSERT (h != NULL); - if (h->root.type != bfd_link_hash_defined - && h->root.type != bfd_link_hash_defweak) - { - /* This appears to be a reference to an undefined - symbol. Just ignore it--it will be caught by the - regular reloc processing. */ - continue; - } - - symval = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - } - - symval += bfd_get_32 (abfd, contents + paddr); - - /* See if this function call can be shortened. */ - foff = (symval - - (irel->r_offset - + sec->output_section->vma - + sec->output_offset - + 4)); - if (foff < -0x1000 || foff >= 0x1000) - { - /* After all that work, we can't shorten this function call. */ - continue; - } - - /* Shorten the function call. */ - - /* For simplicity of coding, we are going to modify the section - contents, the section relocs, and the BFD symbol table. We - must tell the rest of the code not to free up this - information. It would be possible to instead create a table - of changes which have to be made, as is done in coff-mips.c; - that would be more work, but would require less memory when - the linker is run. */ - - elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - symtab_hdr->contents = (bfd_byte *) extsyms; - free_extsyms = NULL; - - /* Replace the jsr with a bsr. */ - - /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and - replace the jsr with a bsr. */ - irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W); - if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) - { - /* If this needs to be changed because of future relaxing, - it will be handled here like other internal IND12W - relocs. */ - bfd_put_16 (abfd, - 0xb000 | ((foff >> 1) & 0xfff), - contents + irel->r_offset); - } - else - { - /* We can't fully resolve this yet, because the external - symbol value may be changed by future relaxing. We let - the final link phase handle it. */ - bfd_put_16 (abfd, 0xb000, contents + irel->r_offset); - } - - /* See if there is another R_SH_USES reloc referring to the same - register load. */ - for (irelscan = internal_relocs; irelscan < irelend; irelscan++) - if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES - && laddr == irelscan->r_offset + 4 + irelscan->r_addend) - break; - if (irelscan < irelend) - { - /* Some other function call depends upon this register load, - and we have not yet converted that function call. - Indeed, we may never be able to convert it. There is - nothing else we can do at this point. */ - continue; - } - - /* Look for a R_SH_COUNT reloc on the location where the - function address is stored. Do this before deleting any - bytes, to avoid confusion about the address. */ - for (irelcount = internal_relocs; irelcount < irelend; irelcount++) - if (irelcount->r_offset == paddr - && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT) - break; - - /* Delete the register load. */ - if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2)) - goto error_return; - - /* That will change things, so, just in case it permits some - other function call to come within range, we should relax - again. Note that this is not required, and it may be slow. */ - *again = true; - - /* Now check whether we got a COUNT reloc. */ - if (irelcount >= irelend) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: warning: could not find expected COUNT reloc", - bfd_get_filename (abfd), (unsigned long) paddr)); - continue; - } - - /* The number of uses is stored in the r_addend field. We've - just deleted one. */ - if (irelcount->r_addend == 0) - { - ((*_bfd_error_handler) ("%s: 0x%lx: warning: bad count", - bfd_get_filename (abfd), - (unsigned long) paddr)); - continue; - } - - --irelcount->r_addend; - - /* If there are no more uses, we can delete the address. Reload - the address from irelfn, in case it was changed by the - previous call to sh_elf_relax_delete_bytes. */ - if (irelcount->r_addend == 0) - { - if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4)) - goto error_return; - } - - /* We've done all we can with that function call. */ - } - - /* Look for load and store instructions that we can align on four - byte boundaries. */ - if (have_code) - { - boolean swapped; - - /* Get the section contents. */ - if (contents == NULL) - { - if (elf_section_data (sec)->this_hdr.contents != NULL) - contents = elf_section_data (sec)->this_hdr.contents; - else - { - contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (contents == NULL) - goto error_return; - free_contents = contents; - - if (! bfd_get_section_contents (abfd, sec, contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - } - - if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents, - &swapped)) - goto error_return; - - if (swapped) - { - elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - symtab_hdr->contents = (bfd_byte *) extsyms; - free_extsyms = NULL; - } - } - - if (free_relocs != NULL) - { - free (free_relocs); - free_relocs = NULL; - } - - if (free_contents != NULL) - { - if (! link_info->keep_memory) - free (free_contents); - else - { - /* Cache the section contents for elf_link_input_bfd. */ - elf_section_data (sec)->this_hdr.contents = contents; - } - free_contents = NULL; - } - - if (free_extsyms != NULL) - { - if (! link_info->keep_memory) - free (free_extsyms); - else - { - /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = extsyms; - } - free_extsyms = NULL; - } - - return true; - - error_return: - if (free_relocs != NULL) - free (free_relocs); - if (free_contents != NULL) - free (free_contents); - if (free_extsyms != NULL) - free (free_extsyms); - return false; -} - -/* Delete some bytes from a section while relaxing. FIXME: There is a - lot of duplication between this function and sh_relax_delete_bytes - in coff-sh.c. */ - -static boolean -sh_elf_relax_delete_bytes (abfd, sec, addr, count) - bfd *abfd; - asection *sec; - bfd_vma addr; - int count; -{ - Elf_Internal_Shdr *symtab_hdr; - Elf32_External_Sym *extsyms; - int shndx, index; - bfd_byte *contents; - Elf_Internal_Rela *irel, *irelend; - Elf_Internal_Rela *irelalign; - bfd_vma toaddr; - Elf32_External_Sym *esym, *esymend; - struct elf_link_hash_entry *sym_hash; - asection *o; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - - shndx = _bfd_elf_section_from_bfd_section (abfd, sec); - - contents = elf_section_data (sec)->this_hdr.contents; - - /* The deletion must stop at the next ALIGN reloc for an aligment - power larger than the number of bytes we are deleting. */ - - irelalign = NULL; - toaddr = sec->_cooked_size; - - irel = elf_section_data (sec)->relocs; - irelend = irel + sec->reloc_count; - for (; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN - && irel->r_offset > addr - && count < (1 << irel->r_addend)) - { - irelalign = irel; - toaddr = irel->r_offset; - break; - } - } - - /* Actually delete the bytes. */ - memmove (contents + addr, contents + addr + count, toaddr - addr - count); - if (irelalign == NULL) - sec->_cooked_size -= count; - else - { - int i; - -#define NOP_OPCODE (0x0009) - - BFD_ASSERT ((count & 1) == 0); - for (i = 0; i < count; i += 2) - bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i); - } - - /* Adjust all the relocs. */ - for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) - { - bfd_vma nraddr, stop; - bfd_vma start = 0; - int insn = 0; - Elf_Internal_Sym sym; - int off, adjust, oinsn; - bfd_signed_vma voff = 0; - boolean overflow; - - /* Get the new reloc address. */ - nraddr = irel->r_offset; - if ((irel->r_offset > addr - && irel->r_offset < toaddr) - || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN - && irel->r_offset == toaddr)) - nraddr -= count; - - /* See if this reloc was for the bytes we have deleted, in which - case we no longer care about it. Don't delete relocs which - represent addresses, though. */ - if (irel->r_offset >= addr - && irel->r_offset < addr + count - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA - && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL) - irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), - (int) R_SH_NONE); - - /* If this is a PC relative reloc, see if the range it covers - includes the bytes we have deleted. */ - switch ((enum sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - break; - - case R_SH_DIR8WPN: - case R_SH_IND12W: - case R_SH_DIR8WPZ: - case R_SH_DIR8WPL: - start = irel->r_offset; - insn = bfd_get_16 (abfd, contents + nraddr); - break; - } - - switch ((enum sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - start = stop = addr; - break; - - case R_SH_DIR32: - /* If this reloc is against a symbol defined in this - section, and the symbol will not be adjusted below, we - must check the addend to see it will put the value in - range to be adjusted, and hence must be changed. */ - if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irel->r_info), - &sym); - if (sym.st_shndx == shndx - && (sym.st_value <= addr - || sym.st_value >= toaddr)) - { - bfd_vma val; - - val = bfd_get_32 (abfd, contents + nraddr); - val += sym.st_value; - if (val >= addr && val < toaddr) - bfd_put_32 (abfd, val - count, contents + nraddr); - } - } - start = stop = addr; - break; - - case R_SH_DIR8WPN: - off = insn & 0xff; - if (off & 0x80) - off -= 0x100; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - break; - - case R_SH_IND12W: - if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info) - start = stop = addr; - else - { - off = insn & 0xfff; - if (off & 0x800) - off -= 0x1000; - stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); - } - break; - - case R_SH_DIR8WPZ: - off = insn & 0xff; - stop = start + 4 + off * 2; - break; - - case R_SH_DIR8WPL: - off = insn & 0xff; - stop = (start &~ (bfd_vma) 3) + 4 + off * 4; - break; - - case R_SH_SWITCH16: - case R_SH_SWITCH32: - /* These relocs types represent - .word L2-L1 - The r_offset field holds the difference between the reloc - address and L1. That is the start of the reloc, and - adding in the contents gives us the top. We must adjust - both the r_offset field and the section contents. */ - - start = irel->r_offset; - stop = (bfd_vma) ((bfd_signed_vma) start - (long) irel->r_addend); - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - irel->r_addend += count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - irel->r_addend -= count; - - start = stop; - - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16) - voff = bfd_get_signed_16 (abfd, contents + nraddr); - else - voff = bfd_get_signed_32 (abfd, contents + nraddr); - stop = (bfd_vma) ((bfd_signed_vma) start + voff); - - break; - - case R_SH_USES: - start = irel->r_offset; - stop = (bfd_vma) ((bfd_signed_vma) start - + (long) irel->r_addend - + 4); - break; - } - - if (start > addr - && start < toaddr - && (stop <= addr || stop >= toaddr)) - adjust = count; - else if (stop > addr - && stop < toaddr - && (start <= addr || start >= toaddr)) - adjust = - count; - else - adjust = 0; - - if (adjust != 0) - { - oinsn = insn; - overflow = false; - switch ((enum sh_reloc_type) ELF32_R_TYPE (irel->r_info)) - { - default: - abort (); - break; - - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: - insn += adjust / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_IND12W: - insn += adjust / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_DIR8WPL: - BFD_ASSERT (adjust == count || count >= 4); - if (count >= 4) - insn += adjust / 4; - else - { - if ((irel->r_offset & 3) == 0) - ++insn; - } - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, contents + nraddr); - break; - - case R_SH_SWITCH16: - voff += adjust; - if (voff < - 0x8000 || voff >= 0x8000) - overflow = true; - bfd_put_signed_16 (abfd, voff, contents + nraddr); - break; - - case R_SH_SWITCH32: - voff += adjust; - bfd_put_signed_32 (abfd, voff, contents + nraddr); - break; - - case R_SH_USES: - irel->r_addend += adjust; - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: fatal: reloc overflow while relaxing", - bfd_get_filename (abfd), (unsigned long) irel->r_offset)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - - irel->r_offset = nraddr; - } - - /* Look through all the other sections. If there contain any IMM32 - relocs against internal symbols which we are not going to adjust - below, we may need to adjust the addends. */ - for (o = abfd->sections; o != NULL; o = o->next) - { - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *irelscan, *irelscanend; - bfd_byte *ocontents; - - if (o == sec - || (o->flags & SEC_RELOC) == 0 - || o->reloc_count == 0) - continue; - - /* We always cache the relocs. Perhaps, if info->keep_memory is - false, we should free them, if we are permitted to, when we - leave sh_coff_relax_section. */ - internal_relocs = (_bfd_elf32_link_read_relocs - (abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL, - true)); - if (internal_relocs == NULL) - return false; - - ocontents = NULL; - irelscanend = internal_relocs + o->reloc_count; - for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) - { - Elf_Internal_Sym sym; - - if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32) - continue; - - if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info) - continue; - - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irelscan->r_info), - &sym); - - if (sym.st_shndx == shndx - && (sym.st_value <= addr - || sym.st_value >= toaddr)) - { - bfd_vma val; - - if (ocontents == NULL) - { - if (elf_section_data (o)->this_hdr.contents != NULL) - ocontents = elf_section_data (o)->this_hdr.contents; - else - { - /* We always cache the section contents. - Perhaps, if info->keep_memory is false, we - should free them, if we are permitted to, - when we leave sh_coff_relax_section. */ - ocontents = (bfd_byte *) bfd_malloc (o->_raw_size); - if (ocontents == NULL) - return false; - if (! bfd_get_section_contents (abfd, o, ocontents, - (file_ptr) 0, - o->_raw_size)) - return false; - elf_section_data (o)->this_hdr.contents = ocontents; - } - } - - val = bfd_get_32 (abfd, ocontents + irelscan->r_offset); - val += sym.st_value; - if (val >= addr && val < toaddr) - bfd_put_32 (abfd, val - count, - ocontents + irelscan->r_offset); - } - } - } - - /* Adjust the local symbols defined in this section. */ - esym = extsyms; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; esym++) - { - Elf_Internal_Sym isym; - - bfd_elf32_swap_symbol_in (abfd, esym, &isym); - - if (isym.st_shndx == shndx - && isym.st_value > addr - && isym.st_value < toaddr) - { - isym.st_value -= count; - bfd_elf32_swap_symbol_out (abfd, &isym, esym); - } - } - - /* Now adjust the global symbols defined in this section. */ - esym = extsyms + symtab_hdr->sh_info; - esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); - for (index = 0; esym < esymend; esym++, index++) - { - Elf_Internal_Sym isym; - - bfd_elf32_swap_symbol_in (abfd, esym, &isym); - sym_hash = elf_sym_hashes (abfd)[index]; - if (isym.st_shndx == shndx - && ((sym_hash)->root.type == bfd_link_hash_defined - || (sym_hash)->root.type == bfd_link_hash_defweak) - && (sym_hash)->root.u.def.section == sec - && (sym_hash)->root.u.def.value > addr - && (sym_hash)->root.u.def.value < toaddr) - { - (sym_hash)->root.u.def.value -= count; - } - } - - /* See if we can move the ALIGN reloc forward. We have adjusted - r_offset for it already. */ - if (irelalign != NULL) - { - bfd_vma alignto, alignaddr; - - alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); - alignaddr = BFD_ALIGN (irelalign->r_offset, - 1 << irelalign->r_addend); - if (alignto != alignaddr) - { - /* Tail recursion. */ - return sh_elf_relax_delete_bytes (abfd, sec, alignaddr, - alignto - alignaddr); - } - } - - return true; -} - -/* Look for loads and stores which we can align to four byte - boundaries. This is like sh_align_loads in coff-sh.c. */ - -static boolean -sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped) - bfd *abfd; - asection *sec; - Elf_Internal_Rela *internal_relocs; - bfd_byte *contents; - boolean *pswapped; -{ - Elf_Internal_Rela *irel, *irelend; - bfd_vma *labels = NULL; - bfd_vma *label, *label_end; - - *pswapped = false; - - irelend = internal_relocs + sec->reloc_count; - - /* Get all the addresses with labels on them. */ - labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma)); - if (labels == NULL) - goto error_return; - label_end = labels; - for (irel = internal_relocs; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL) - { - *label_end = irel->r_offset; - ++label_end; - } - } - - /* Note that the assembler currently always outputs relocs in - address order. If that ever changes, this code will need to sort - the label values and the relocs. */ - - label = labels; - - for (irel = internal_relocs; irel < irelend; irel++) - { - bfd_vma start, stop; - - if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE) - continue; - - start = irel->r_offset; - - for (irel++; irel < irelend; irel++) - if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA) - break; - if (irel < irelend) - stop = irel->r_offset; - else - stop = sec->_cooked_size; - - if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns, - (PTR) internal_relocs, &label, - label_end, start, stop, pswapped)) - goto error_return; - } - - free (labels); - - return true; - - error_return: - if (labels != NULL) - free (labels); - return false; -} - -/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */ - -static boolean -sh_elf_swap_insns (abfd, sec, relocs, contents, addr) - bfd *abfd; - asection *sec; - PTR relocs; - bfd_byte *contents; - bfd_vma addr; -{ - Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs; - unsigned short i1, i2; - Elf_Internal_Rela *irel, *irelend; - - /* Swap the instructions themselves. */ - i1 = bfd_get_16 (abfd, contents + addr); - i2 = bfd_get_16 (abfd, contents + addr + 2); - bfd_put_16 (abfd, i2, contents + addr); - bfd_put_16 (abfd, i1, contents + addr + 2); - - /* Adjust all reloc addresses. */ - irelend = internal_relocs + sec->reloc_count; - for (irel = internal_relocs; irel < irelend; irel++) - { - enum sh_reloc_type type; - int add; - - /* There are a few special types of relocs that we don't want to - adjust. These relocs do not apply to the instruction itself, - but are only associated with the address. */ - type = (enum sh_reloc_type) ELF32_R_TYPE (irel->r_info); - if (type == R_SH_ALIGN - || type == R_SH_CODE - || type == R_SH_DATA - || type == R_SH_LABEL) - continue; - - /* If an R_SH_USES reloc points to one of the addresses being - swapped, we must adjust it. It would be incorrect to do this - for a jump, though, since we want to execute both - instructions after the jump. (We have avoided swapping - around a label, so the jump will not wind up executing an - instruction it shouldn't). */ - if (type == R_SH_USES) - { - bfd_vma off; - - off = irel->r_offset + 4 + irel->r_addend; - if (off == addr) - irel->r_offset += 2; - else if (off == addr + 2) - irel->r_offset -= 2; - } - - if (irel->r_offset == addr) - { - irel->r_offset += 2; - add = -2; - } - else if (irel->r_offset == addr + 2) - { - irel->r_offset -= 2; - add = 2; - } - else - add = 0; - - if (add != 0) - { - bfd_byte *loc; - unsigned short insn, oinsn; - boolean overflow; - - loc = contents + irel->r_offset; - overflow = false; - switch (type) - { - default: - break; - - case R_SH_DIR8WPN: - case R_SH_DIR8WPZ: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - break; - - case R_SH_IND12W: - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xf000) != (insn & 0xf000)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - break; - - case R_SH_DIR8WPL: - /* This reloc ignores the least significant 3 bits of - the program counter before adding in the offset. - This means that if ADDR is at an even address, the - swap will not affect the offset. If ADDR is an at an - odd address, then the instruction will be crossing a - four byte boundary, and must be adjusted. */ - if ((addr & 3) != 0) - { - insn = bfd_get_16 (abfd, loc); - oinsn = insn; - insn += add / 2; - if ((oinsn & 0xff00) != (insn & 0xff00)) - overflow = true; - bfd_put_16 (abfd, insn, loc); - } - - break; - } - - if (overflow) - { - ((*_bfd_error_handler) - ("%s: 0x%lx: fatal: reloc overflow while relaxing", - bfd_get_filename (abfd), (unsigned long) irel->r_offset)); - bfd_set_error (bfd_error_bad_value); - return false; - } - } - } - - return true; -} - -/* Relocate an SH ELF section. */ - -static boolean -sh_elf_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - Elf_Internal_Rela *relocs; - Elf_Internal_Sym *local_syms; - asection **local_sections; -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - Elf_Internal_Rela *rel, *relend; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - int r_type; - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - bfd_vma relocation; - bfd_reloc_status_type r; - - r_symndx = ELF32_R_SYM (rel->r_info); - - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } - - continue; - } - - r_type = ELF32_R_TYPE (rel->r_info); - - /* Many of the relocs are only used for relaxing, and are - handled entirely by the relaxation code. */ - if (r_type > (int) LAST_INVALID_RELOC) - continue; - - if (r_type < 0 - || r_type >= (int) FIRST_INVALID_RELOC) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - /* FIXME: This is certainly incorrect. However, it is how the - COFF linker works. */ - if (r_type != (int) R_SH_DIR32 - && r_type != (int) R_SH_IND12W) - continue; - - howto = sh_elf_howto_table + r_type; - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - /* There is nothing to be done for an internal IND12W - relocation. FIXME: This is probably wrong, but it's how - the COFF relocations work. */ - if (r_type == (int) R_SH_IND12W) - continue; - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - } - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - sec = h->root.u.def.section; - relocation = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } - else if (h->root.type == bfd_link_hash_undefweak) - relocation = 0; - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset))) - return false; - relocation = 0; - } - } - - /* FIXME: This is how the COFF relocations work. */ - if (r_type == (int) R_SH_IND12W) - relocation -= 4; - - /* FIXME: We should use the addend, but the COFF relocations - don't. */ - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, 0); - - if (r != bfd_reloc_ok) - { - switch (r) - { - default: - case bfd_reloc_outofrange: - abort (); - case bfd_reloc_overflow: - { - const char *name; - - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (name == NULL) - return false; - if (*name == '\0') - name = bfd_section_name (input_bfd, sec); - } - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, - input_bfd, input_section, rel->r_offset))) - return false; - } - break; - } - } - } - - return true; -} - -/* This is a version of bfd_generic_get_relocated_section_contents - which uses sh_elf_relocate_section. */ - -static bfd_byte * -sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, - data, relocateable, symbols) - bfd *output_bfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - bfd_byte *data; - boolean relocateable; - asymbol **symbols; -{ - Elf_Internal_Shdr *symtab_hdr; - asection *input_section = link_order->u.indirect.section; - bfd *input_bfd = input_section->owner; - asection **sections = NULL; - Elf_Internal_Rela *internal_relocs = NULL; - Elf32_External_Sym *external_syms = NULL; - Elf_Internal_Sym *internal_syms = NULL; - - /* We only need to handle the case of relaxing, or of having a - particular set of section contents, specially. */ - if (relocateable - || elf_section_data (input_section)->this_hdr.contents == NULL) - return bfd_generic_get_relocated_section_contents (output_bfd, link_info, - link_order, data, - relocateable, - symbols); - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - - memcpy (data, elf_section_data (input_section)->this_hdr.contents, - input_section->_raw_size); - - if ((input_section->flags & SEC_RELOC) != 0 - && input_section->reloc_count > 0) - { - Elf_Internal_Sym *isymp; - asection **secpp; - Elf32_External_Sym *esym, *esymend; - - if (symtab_hdr->contents != NULL) - external_syms = (Elf32_External_Sym *) symtab_hdr->contents; - else - { - external_syms = ((Elf32_External_Sym *) - bfd_malloc (symtab_hdr->sh_info - * sizeof (Elf32_External_Sym))); - if (external_syms == NULL && symtab_hdr->sh_info > 0) - goto error_return; - if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (external_syms, sizeof (Elf32_External_Sym), - symtab_hdr->sh_info, input_bfd) - != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))) - goto error_return; - } - - internal_relocs = (_bfd_elf32_link_read_relocs - (input_bfd, input_section, (PTR) NULL, - (Elf_Internal_Rela *) NULL, false)); - if (internal_relocs == NULL) - goto error_return; - - internal_syms = ((Elf_Internal_Sym *) - bfd_malloc (symtab_hdr->sh_info - * sizeof (Elf_Internal_Sym))); - if (internal_syms == NULL && symtab_hdr->sh_info > 0) - goto error_return; - - sections = (asection **) bfd_malloc (symtab_hdr->sh_info - * sizeof (asection *)); - if (sections == NULL && symtab_hdr->sh_info > 0) - goto error_return; - - isymp = internal_syms; - secpp = sections; - esym = external_syms; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; ++esym, ++isymp, ++secpp) - { - asection *isec; - - bfd_elf32_swap_symbol_in (input_bfd, esym, isymp); - - if (isymp->st_shndx == SHN_UNDEF) - isec = bfd_und_section_ptr; - else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) - isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); - else if (isymp->st_shndx == SHN_ABS) - isec = bfd_abs_section_ptr; - else if (isymp->st_shndx == SHN_COMMON) - isec = bfd_com_section_ptr; - else - { - /* Who knows? */ - isec = NULL; - } - - *secpp = isec; - } - - if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd, - input_section, data, internal_relocs, - internal_syms, sections)) - goto error_return; - - if (sections != NULL) - free (sections); - sections = NULL; - if (internal_syms != NULL) - free (internal_syms); - internal_syms = NULL; - if (external_syms != NULL && symtab_hdr->contents == NULL) - free (external_syms); - external_syms = NULL; - if (internal_relocs != elf_section_data (input_section)->relocs) - free (internal_relocs); - internal_relocs = NULL; - } - - return data; - - error_return: - if (internal_relocs != NULL - && internal_relocs != elf_section_data (input_section)->relocs) - free (internal_relocs); - if (external_syms != NULL && symtab_hdr->contents == NULL) - free (external_syms); - if (internal_syms != NULL) - free (internal_syms); - if (sections != NULL) - free (sections); - return NULL; -} - -#define TARGET_BIG_SYM bfd_elf32_sh_vec -#define TARGET_BIG_NAME "elf32-sh" -#define TARGET_LITTLE_SYM bfd_elf32_shl_vec -#define TARGET_LITTLE_NAME "elf32-shl" -#define ELF_ARCH bfd_arch_sh -#define ELF_MACHINE_CODE EM_SH -#define ELF_MAXPAGESIZE 0x1 - -#define elf_symbol_leading_char '_' - -#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup -#define elf_info_to_howto sh_elf_info_to_howto -#define bfd_elf32_bfd_relax_section sh_elf_relax_section -#define elf_backend_relocate_section sh_elf_relocate_section -#define bfd_elf32_bfd_get_relocated_section_contents \ - sh_elf_get_relocated_section_contents - -#include "elf32-target.h" diff --git a/contrib/binutils/bfd/elf32-v850.c b/contrib/binutils/bfd/elf32-v850.c deleted file mode 100644 index 3df09143d3222..0000000000000 --- a/contrib/binutils/bfd/elf32-v850.c +++ /dev/null @@ -1,2235 +0,0 @@ -/* V850-specific support for 32-bit ELF - Copyright 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char - dependencies. As is the gas & simulator code or the v850. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/v850.h" - -/* sign-extend a 24-bit number */ -#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000) - -static reloc_howto_type *v850_elf_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); -static void v850_elf_info_to_howto_rel - PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); -static void v850_elf_info_to_howto_rela - PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); -static bfd_reloc_status_type v850_elf_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static boolean v850_elf_is_local_label_name - PARAMS ((bfd *, const char *)); -static boolean v850_elf_relocate_section - PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static bfd_reloc_status_type v850_elf_perform_relocation - PARAMS ((bfd *, int, bfd_vma, bfd_byte *)); -static boolean v850_elf_check_relocs - PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *)); -static void remember_hi16s_reloc - PARAMS ((bfd *, bfd_vma, bfd_byte *)); -static bfd_byte * find_remembered_hi16s_reloc - PARAMS ((bfd_vma, boolean *)); -static bfd_reloc_status_type v850_elf_final_link_relocate - PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *, bfd_vma, - bfd_vma, bfd_vma, struct bfd_link_info *, asection *, int)); -static boolean v850_elf_object_p - PARAMS ((bfd *)); -static boolean v850_elf_fake_sections - PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *)); -static void v850_elf_final_write_processing - PARAMS ((bfd *, boolean)); -static boolean v850_elf_set_private_flags - PARAMS ((bfd *, flagword)); -static boolean v850_elf_copy_private_bfd_data - PARAMS ((bfd *, bfd *)); -static boolean v850_elf_merge_private_bfd_data - PARAMS ((bfd *, bfd *)); -static boolean v850_elf_print_private_bfd_data - PARAMS ((bfd *, PTR)); -static boolean v850_elf_section_from_bfd_section - PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *)); -static void v850_elf_symbol_processing - PARAMS ((bfd *, asymbol *)); -static boolean v850_elf_add_symbol_hook - PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, - const char **, flagword *, asection **, bfd_vma *)); -static boolean v850_elf_link_output_symbol_hook - PARAMS ((bfd *, struct bfd_link_info *, const char *, - Elf_Internal_Sym *, asection *)); -static boolean v850_elf_section_from_shdr - PARAMS ((bfd *, Elf_Internal_Shdr *, char *)); - -/* Note: It is REQUIRED that the 'type' value of each entry in this array - match the index of the entry in the array. */ -static reloc_howto_type v850_elf_howto_table[] = -{ - /* This reloc does nothing. */ - HOWTO (R_V850_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_V850_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A PC relative 9 bit branch. */ - HOWTO (R_V850_9_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_9_PCREL", /* name */ - false, /* partial_inplace */ - 0x00ffffff, /* src_mask */ - 0x00ffffff, /* dst_mask */ - true), /* pcrel_offset */ - - /* A PC relative 22 bit branch. */ - HOWTO (R_V850_22_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 22, /* bitsize */ - true, /* pc_relative */ - 7, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_22_PCREL", /* name */ - false, /* partial_inplace */ - 0x07ffff80, /* src_mask */ - 0x07ffff80, /* dst_mask */ - true), /* pcrel_offset */ - - /* High 16 bits of symbol value. */ - HOWTO (R_V850_HI16_S, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_HI16_S", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of symbol value. */ - HOWTO (R_V850_HI16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_HI16", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of symbol value. */ - HOWTO (R_V850_LO16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_LO16", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Simple 32bit reloc. */ - HOWTO (R_V850_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_32", /* name */ - false, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Simple 16bit reloc. */ - HOWTO (R_V850_16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_V850_16", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Simple 8bit reloc. */ - HOWTO (R_V850_8, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_V850_8", /* name */ - false, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the short data area pointer. */ - HOWTO (R_V850_SDA_16_16_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_SDA_16_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 15 bit offset from the short data area pointer. */ - HOWTO (R_V850_SDA_15_16_OFFSET, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 1, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_SDA_15_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xfffe, /* src_mask */ - 0xfffe, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the zero data area pointer. */ - HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_ZDA_16_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 15 bit offset from the zero data area pointer. */ - HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 1, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_ZDA_15_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xfffe, /* src_mask */ - 0xfffe, /* dst_mask */ - false), /* pcrel_offset */ - - /* 6 bit offset from the tiny data area pointer. */ - HOWTO (R_V850_TDA_6_8_OFFSET, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 1, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_6_8_OFFSET", /* name */ - false, /* partial_inplace */ - 0x7e, /* src_mask */ - 0x7e, /* dst_mask */ - false), /* pcrel_offset */ - - /* 8 bit offset from the tiny data area pointer. */ - HOWTO (R_V850_TDA_7_8_OFFSET, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_7_8_OFFSET", /* name */ - false, /* partial_inplace */ - 0x7f, /* src_mask */ - 0x7f, /* dst_mask */ - false), /* pcrel_offset */ - - /* 7 bit offset from the tiny data area pointer. */ - HOWTO (R_V850_TDA_7_7_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 7, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_7_7_OFFSET", /* name */ - false, /* partial_inplace */ - 0x7f, /* src_mask */ - 0x7f, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the tiny data area pointer! */ - HOWTO (R_V850_TDA_16_16_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_16_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xfff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 5 bit offset from the tiny data area pointer. */ - HOWTO (R_V850_TDA_4_5_OFFSET, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 5, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_4_5_OFFSET", /* name */ - false, /* partial_inplace */ - 0x0f, /* src_mask */ - 0x0f, /* dst_mask */ - false), /* pcrel_offset */ - - /* 4 bit offset from the tiny data area pointer. */ - HOWTO (R_V850_TDA_4_4_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 4, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_TDA_4_4_OFFSET", /* name */ - false, /* partial_inplace */ - 0x0f, /* src_mask */ - 0x0f, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the short data area pointer. */ - HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */ - false, /* partial_inplace */ - 0xfffe0020, /* src_mask */ - 0xfffe0020, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the zero data area pointer. */ - HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */ - false, /* partial_inplace */ - 0xfffe0020, /* src_mask */ - 0xfffe0020, /* dst_mask */ - false), /* pcrel_offset */ - - /* 6 bit offset from the call table base pointer. */ - HOWTO (R_V850_CALLT_6_7_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 7, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_CALLT_6_7_OFFSET", /* name */ - false, /* partial_inplace */ - 0x3f, /* src_mask */ - 0x3f, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit offset from the call table base pointer. */ - HOWTO (R_V850_CALLT_16_16_OFFSET, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - v850_elf_reloc, /* special_function */ - "R_V850_CALLT_16_16_OFFSET", /* name */ - false, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* GNU extension to record C++ vtable hierarchy */ - HOWTO (R_V850_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_V850_GNU_VTINHERIT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* GNU extension to record C++ vtable member usage */ - HOWTO (R_V850_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_elf_rel_vtable_reloc_fn, /* special_function */ - "R_V850_GNU_VTENTRY", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - -}; - -/* Map BFD reloc types to V850 ELF reloc types. */ - -struct v850_elf_reloc_map -{ - /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an - unsigned char. */ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -static const struct v850_elf_reloc_map v850_elf_reloc_map[] = -{ - { BFD_RELOC_NONE, R_V850_NONE }, - { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, - { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, - { BFD_RELOC_HI16_S, R_V850_HI16_S }, - { BFD_RELOC_HI16, R_V850_HI16 }, - { BFD_RELOC_LO16, R_V850_LO16 }, - { BFD_RELOC_32, R_V850_32 }, - { BFD_RELOC_16, R_V850_16 }, - { BFD_RELOC_8, R_V850_8 }, - { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, - { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, - { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, - { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, - { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, - { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, - { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, - { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, - { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, - { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, - { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, - { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, - { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, - { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, - { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, - -}; - -/* Map a bfd relocation into the appropriate howto structure */ -static reloc_howto_type * -v850_elf_reloc_type_lookup (abfd, code) - bfd * abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - unsigned int i; - - for (i = 0; - i < sizeof (v850_elf_reloc_map) / sizeof (struct v850_elf_reloc_map); - i++) - { - if (v850_elf_reloc_map[i].bfd_reloc_val == code) - { - BFD_ASSERT (v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val].type == v850_elf_reloc_map[i].elf_reloc_val); - - return & v850_elf_howto_table[v850_elf_reloc_map[i].elf_reloc_val]; - } - } - - return NULL; -} - -/* Set the howto pointer for an V850 ELF reloc. */ -static void -v850_elf_info_to_howto_rel (abfd, cache_ptr, dst) - bfd * abfd ATTRIBUTE_UNUSED; - arelent * cache_ptr; - Elf32_Internal_Rel * dst; -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_V850_max); - cache_ptr->howto = &v850_elf_howto_table[r_type]; -} - -/* Set the howto pointer for a V850 ELF reloc (type RELA). */ -static void -v850_elf_info_to_howto_rela (abfd, cache_ptr, dst) - bfd * abfd ATTRIBUTE_UNUSED; - arelent * cache_ptr; - Elf32_Internal_Rela *dst; -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_V850_max); - cache_ptr->howto = &v850_elf_howto_table[r_type]; -} - -/* Look through the relocs for a section during the first phase, and - allocate space in the global offset table or procedure linkage - table. */ - -static boolean -v850_elf_check_relocs (abfd, info, sec, relocs) - bfd * abfd; - struct bfd_link_info * info; - asection * sec; - const Elf_Internal_Rela * relocs; -{ - boolean ret = true; - bfd *dynobj; - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - asection *sreloc; - enum v850_reloc_type r_type; - int other = 0; - const char *common = (const char *)0; - - if (info->relocateable) - return true; - -#ifdef DEBUG - fprintf (stderr, "v850_elf_check_relocs called for section %s in %s\n", - bfd_get_section_name (abfd, sec), - bfd_get_filename (abfd)); -#endif - - dynobj = elf_hash_table (info)->dynobj; - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - sreloc = NULL; - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - unsigned long r_symndx; - struct elf_link_hash_entry *h; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - - r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info); - switch (r_type) - { - default: - case R_V850_NONE: - case R_V850_9_PCREL: - case R_V850_22_PCREL: - case R_V850_HI16_S: - case R_V850_HI16: - case R_V850_LO16: - case R_V850_32: - case R_V850_16: - case R_V850_8: - case R_V850_CALLT_6_7_OFFSET: - case R_V850_CALLT_16_16_OFFSET: - break; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_V850_GNU_VTINHERIT: - if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return false; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_V850_GNU_VTENTRY: - if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) - return false; - break; - - case R_V850_SDA_16_16_SPLIT_OFFSET: - case R_V850_SDA_16_16_OFFSET: - case R_V850_SDA_15_16_OFFSET: - other = V850_OTHER_SDA; - common = ".scommon"; - goto small_data_common; - - case R_V850_ZDA_16_16_SPLIT_OFFSET: - case R_V850_ZDA_16_16_OFFSET: - case R_V850_ZDA_15_16_OFFSET: - other = V850_OTHER_ZDA; - common = ".zcommon"; - goto small_data_common; - - case R_V850_TDA_4_5_OFFSET: - case R_V850_TDA_4_4_OFFSET: - case R_V850_TDA_6_8_OFFSET: - case R_V850_TDA_7_8_OFFSET: - case R_V850_TDA_7_7_OFFSET: - case R_V850_TDA_16_16_OFFSET: - other = V850_OTHER_TDA; - common = ".tcommon"; - /* fall through */ - -#define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) - - small_data_common: - if (h) - { - h->other |= other; /* flag which type of relocation was used */ - if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) - && (h->other & V850_OTHER_ERROR) == 0) - { - const char * msg; - static char buff[200]; /* XXX */ - - switch (h->other & V850_OTHER_MASK) - { - default: - msg = _("Variable `%s' cannot occupy in multiple small data regions"); - break; - case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: - msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions"); - break; - case V850_OTHER_SDA | V850_OTHER_ZDA: - msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously"); - break; - case V850_OTHER_SDA | V850_OTHER_TDA: - msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously"); - break; - case V850_OTHER_ZDA | V850_OTHER_TDA: - msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously"); - break; - } - - sprintf (buff, msg, h->root.root.string); - info->callbacks->warning (info, buff, h->root.root.string, - abfd, h->root.u.def.section, 0); - - bfd_set_error (bfd_error_bad_value); - h->other |= V850_OTHER_ERROR; - ret = false; - } - } - - if (h && h->root.type == bfd_link_hash_common - && h->root.u.c.p - && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) - { - asection *section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); - section->flags |= SEC_IS_COMMON; - } - -#ifdef DEBUG - fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", - v850_elf_howto_table[ (int)r_type ].name, - (h && h->root.root.string) ? h->root.root.string : "<unknown>", - (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); -#endif - break; - } - } - - return ret; -} - -/* - * In the old version, when an entry was checked out from the table, - * it was deleted. This produced an error if the entry was needed - * more than once, as the second attempted retry failed. - * - * In the current version, the entry is not deleted, instead we set - * the field 'found' to true. If a second lookup matches the same - * entry, then we know that the hi16s reloc has already been updated - * and does not need to be updated a second time. - * - * TODO - TOFIX: If it is possible that we need to restore 2 different - * addresses from the same table entry, where the first generates an - * overflow, whilst the second do not, then this code will fail. - */ - -typedef struct hi16s_location -{ - bfd_vma addend; - bfd_byte * address; - unsigned long counter; - boolean found; - struct hi16s_location * next; -} -hi16s_location; - -static hi16s_location * previous_hi16s; -static hi16s_location * free_hi16s; -static unsigned long hi16s_counter; - -static void -remember_hi16s_reloc (abfd, addend, address) - bfd * abfd; - bfd_vma addend; - bfd_byte * address; -{ - hi16s_location * entry = NULL; - - /* Find a free structure. */ - if (free_hi16s == NULL) - free_hi16s = (hi16s_location *) bfd_zalloc (abfd, sizeof (* free_hi16s)); - - entry = free_hi16s; - free_hi16s = free_hi16s->next; - - entry->addend = addend; - entry->address = address; - entry->counter = hi16s_counter ++; - entry->found = false; - entry->next = previous_hi16s; - previous_hi16s = entry; - - /* Cope with wrap around of our counter. */ - if (hi16s_counter == 0) - { - /* XXX - Assume that all counter entries differ only in their low 16 bits. */ - for (entry = previous_hi16s; entry != NULL; entry = entry->next) - entry->counter &= 0xffff; - - hi16s_counter = 0x10000; - } - - return; -} - -static bfd_byte * -find_remembered_hi16s_reloc (addend, already_found) - bfd_vma addend; - boolean * already_found; -{ - hi16s_location * match = NULL; - hi16s_location * entry; - hi16s_location * previous = NULL; - hi16s_location * prev; - bfd_byte * addr; - - /* Search the table. Record the most recent entry that matches. */ - for (entry = previous_hi16s; entry; entry = entry->next) - { - if (entry->addend == addend - && (match == NULL || match->counter < entry->counter)) - { - previous = prev; - match = entry; - } - - prev = entry; - } - - if (match == NULL) - return NULL; - - /* Extract the address. */ - addr = match->address; - - /* Remeber if this entry has already been used before. */ - if (already_found) - * already_found = match->found; - - /* Note that this entry has now been used. */ - match->found = true; - - return addr; -} - -/* FIXME: The code here probably ought to be removed and the code in reloc.c - allowed to do its stuff instead. At least for most of the relocs, anwyay. */ -static bfd_reloc_status_type -v850_elf_perform_relocation (abfd, r_type, addend, address) - bfd * abfd; - int r_type; - bfd_vma addend; - bfd_byte * address; -{ - unsigned long insn; - bfd_signed_vma saddend = (bfd_signed_vma) addend; - - switch (r_type) - { - default: - /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */ - return bfd_reloc_notsupported; - - case R_V850_32: - bfd_put_32 (abfd, addend, address); - return bfd_reloc_ok; - - case R_V850_22_PCREL: - if (saddend > 0x1fffff || saddend < -0x200000) - return bfd_reloc_overflow; - - if ((addend % 2) != 0) - return bfd_reloc_dangerous; - - insn = bfd_get_32 (abfd, address); - insn &= ~0xfffe003f; - insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); - bfd_put_32 (abfd, insn, address); - return bfd_reloc_ok; - - case R_V850_9_PCREL: - if (saddend > 0xff || saddend < -0x100) - return bfd_reloc_overflow; - - if ((addend % 2) != 0) - return bfd_reloc_dangerous; - - insn = bfd_get_16 (abfd, address); - insn &= ~ 0xf870; - insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); - break; - - case R_V850_HI16: - addend += (bfd_get_16 (abfd, address) << 16); - addend = (addend >> 16); - insn = addend; - break; - - case R_V850_HI16_S: - /* Remember where this relocation took place. */ - remember_hi16s_reloc (abfd, addend, address); - - addend += (bfd_get_16 (abfd, address) << 16); - addend = (addend >> 16) + ((addend & 0x8000) != 0); - - /* This relocation cannot overflow. */ - if (addend > 0x7fff) - addend = 0; - - insn = addend; - break; - - case R_V850_LO16: - /* Calculate the sum of the value stored in the instruction and the - addend and check for overflow from the low 16 bits into the high - 16 bits. The assembler has already done some of this: If the - value stored in the instruction has its 15th bit set, (counting - from zero) then the assembler will have added 1 to the value - stored in the associated HI16S reloc. So for example, these - relocations: - - movhi hi( fred ), r0, r1 - movea lo( fred ), r1, r1 - - will store 0 in the value fields for the MOVHI and MOVEA instructions - and addend will be the address of fred, but for these instructions: - - movhi hi( fred + 0x123456), r0, r1 - movea lo( fred + 0x123456), r1, r1 - - the value stored in the MOVHI instruction will be 0x12 and the value - stored in the MOVEA instruction will be 0x3456. If however the - instructions were: - - movhi hi( fred + 0x10ffff), r0, r1 - movea lo( fred + 0x10ffff), r1, r1 - - then the value stored in the MOVHI instruction would be 0x11 (not - 0x10) and the value stored in the MOVEA instruction would be 0xffff. - Thus (assuming for the moment that the addend is 0), at run time the - MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction - adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if - the instructions were: - - movhi hi( fred - 1), r0, r1 - movea lo( fred - 1), r1, r1 - - then 0 is stored in the MOVHI instruction and -1 is stored in the - MOVEA instruction. - - Overflow can occur if the addition of the value stored in the - instruction plus the addend sets the 15th bit when before it was clear. - This is because the 15th bit will be sign extended into the high part, - thus reducing its value by one, but since the 15th bit was originally - clear, the assembler will not have added 1 to the previous HI16S reloc - to compensate for this effect. For example: - - movhi hi( fred + 0x123456), r0, r1 - movea lo( fred + 0x123456), r1, r1 - - The value stored in HI16S reloc is 0x12, the value stored in the LO16 - reloc is 0x3456. If we assume that the address of fred is 0x00007000 - then the relocations become: - - HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 - LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 - - but when the instructions are executed, the MOVEA instruction's value - is signed extended, so the sum becomes: - - 0x00120000 - + 0xffffa456 - ------------ - 0x0011a456 but 'fred + 0x123456' = 0x0012a456 - - Note that if the 15th bit was set in the value stored in the LO16 - reloc, then we do not have to do anything: - - movhi hi( fred + 0x10ffff), r0, r1 - movea lo( fred + 0x10ffff), r1, r1 - - HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 - LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff - - 0x00110000 - + 0x00006fff - ------------ - 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff - - Overflow can also occur if the computation carries into the 16th bit - and it also results in the 15th bit having the same value as the 15th - bit of the original value. What happens is that the HI16S reloc - will have already examined the 15th bit of the original value and - added 1 to the high part if the bit is set. This compensates for the - sign extension of 15th bit of the result of the computation. But now - there is a carry into the 16th bit, and this has not been allowed for. - - So, for example if fred is at address 0xf000: - - movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] - movea lo( fred + 0xffff), r1, r1 - - HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 - LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) - - 0x00010000 - + 0xffffefff - ------------ - 0x0000efff but 'fred + 0xffff' = 0x0001efff - - Similarly, if the 15th bit remains clear, but overflow occurs into - the 16th bit then (assuming the address of fred is 0xf000): - - movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] - movea lo( fred + 0x7000), r1, r1 - - HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 - LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) - - 0x00000000 - + 0x00006fff - ------------ - 0x00006fff but 'fred + 0x7000' = 0x00016fff - - Note - there is no need to change anything if a carry occurs, and the - 15th bit changes its value from being set to being clear, as the HI16S - reloc will have already added in 1 to the high part for us: - - movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] - movea lo( fred + 0xffff), r1, r1 - - HI16S: 0x0001 + (0x00007000 >> 16) - LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) - - 0x00010000 - + 0x00006fff (bit 15 not set, so the top half is zero) - ------------ - 0x00016fff which is right (assuming that fred is at 0x7000) - - but if the 15th bit goes from being clear to being set, then we must - once again handle overflow: - - movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] - movea lo( fred + 0x7000), r1, r1 - - HI16S: 0x0000 + (0x0000ffff >> 16) - LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) - - 0x00000000 - + 0x00006fff (bit 15 not set, so the top half is zero) - ------------ - 0x00006fff which is wrong (assuming that fred is at 0xffff) - */ - - { - long result; - - insn = bfd_get_16 (abfd, address); - result = insn + addend; - -#define BIT15_SET(x) ((x) & 0x8000) -#define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) - - if ((BIT15_SET (result) && ! BIT15_SET (addend)) - || (OVERFLOWS (addend, insn) - && ((! BIT15_SET (insn)) || (BIT15_SET (addend))))) - { - boolean already_updated; - bfd_byte * hi16s_address = find_remembered_hi16s_reloc - (addend, & already_updated); - - /* Amend the matching HI16_S relocation. */ - if (hi16s_address != NULL) - { - if (! already_updated) - { - insn = bfd_get_16 (abfd, hi16s_address); - insn += 1; - bfd_put_16 (abfd, insn, hi16s_address); - } - } - else - { - fprintf (stderr, _("FAILED to find previous HI16 reloc\n")); - return bfd_reloc_overflow; - } - } - - /* Do not complain if value has top bit set, as this has been anticipated. */ - insn = result & 0xffff; - break; - } - - case R_V850_8: - addend += (char) bfd_get_8 (abfd, address); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7f || saddend < -0x80) - return bfd_reloc_overflow; - - bfd_put_8 (abfd, addend, address); - return bfd_reloc_ok; - - case R_V850_CALLT_16_16_OFFSET: - addend += bfd_get_16 (abfd, address); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0xffff || saddend < 0) - return bfd_reloc_overflow; - - insn = addend; - break; - - case R_V850_16: - - /* drop through */ - case R_V850_SDA_16_16_OFFSET: - case R_V850_ZDA_16_16_OFFSET: - case R_V850_TDA_16_16_OFFSET: - addend += bfd_get_16 (abfd, address); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7fff || saddend < -0x8000) - return bfd_reloc_overflow; - - insn = addend; - break; - - case R_V850_SDA_15_16_OFFSET: - case R_V850_ZDA_15_16_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += (insn & 0xfffe); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7ffe || saddend < -0x8000) - return bfd_reloc_overflow; - - if (addend & 1) - return bfd_reloc_dangerous; - - insn = (addend & ~1) | (insn & 1); - break; - - case R_V850_TDA_6_8_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += ((insn & 0x7e) << 1); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0xfc || saddend < 0) - return bfd_reloc_overflow; - - if (addend & 3) - return bfd_reloc_dangerous; - - insn &= 0xff81; - insn |= (addend >> 1); - break; - - case R_V850_TDA_7_8_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += ((insn & 0x7f) << 1); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0xfe || saddend < 0) - return bfd_reloc_overflow; - - if (addend & 1) - return bfd_reloc_dangerous; - - insn &= 0xff80; - insn |= (addend >> 1); - break; - - case R_V850_TDA_7_7_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += insn & 0x7f; - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7f || saddend < 0) - return bfd_reloc_overflow; - - insn &= 0xff80; - insn |= addend; - break; - - case R_V850_TDA_4_5_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += ((insn & 0xf) << 1); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x1e || saddend < 0) - return bfd_reloc_overflow; - - if (addend & 1) - return bfd_reloc_dangerous; - - insn &= 0xfff0; - insn |= (addend >> 1); - break; - - case R_V850_TDA_4_4_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += insn & 0xf; - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0xf || saddend < 0) - return bfd_reloc_overflow; - - insn &= 0xfff0; - insn |= addend; - break; - - case R_V850_ZDA_16_16_SPLIT_OFFSET: - case R_V850_SDA_16_16_SPLIT_OFFSET: - insn = bfd_get_32 (abfd, address); - addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7fff || saddend < -0x8000) - return bfd_reloc_overflow; - - insn &= 0x0001ffdf; - insn |= (addend & 1) << 5; - insn |= (addend & ~1) << 16; - - bfd_put_32 (abfd, insn, address); - return bfd_reloc_ok; - - case R_V850_CALLT_6_7_OFFSET: - insn = bfd_get_16 (abfd, address); - addend += ((insn & 0x3f) << 1); - - saddend = (bfd_signed_vma) addend; - - if (saddend > 0x7e || saddend < 0) - return bfd_reloc_overflow; - - if (addend & 1) - return bfd_reloc_dangerous; - - insn &= 0xff80; - insn |= (addend >> 1); - break; - - case R_V850_GNU_VTINHERIT: - case R_V850_GNU_VTENTRY: - return bfd_reloc_ok; - - } - - bfd_put_16 (abfd, insn, address); - return bfd_reloc_ok; -} - -/* Insert the addend into the instruction. */ -static bfd_reloc_status_type -v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err) - bfd * abfd ATTRIBUTE_UNUSED; - arelent * reloc; - asymbol * symbol; - PTR data ATTRIBUTE_UNUSED; - asection * isection; - bfd * obfd; - char ** err ATTRIBUTE_UNUSED; -{ - long relocation; - - /* If there is an output BFD, - and the symbol is not a section name (which is only defined at final link time), - and either we are not putting the addend into the instruction - or the addend is zero, so there is nothing to add into the instruction - then just fixup the address and return. */ - if (obfd != (bfd *) NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (! reloc->howto->partial_inplace - || reloc->addend == 0)) - { - reloc->address += isection->output_offset; - return bfd_reloc_ok; - } -#if 0 - else if (obfd != NULL) - { - return bfd_reloc_continue; - } -#endif - - /* Catch relocs involving undefined symbols. */ - if (bfd_is_und_section (symbol->section) - && (symbol->flags & BSF_WEAK) == 0 - && obfd == NULL) - return bfd_reloc_undefined; - - /* We handle final linking of some relocs ourselves. */ - - /* Is the address of the relocation really within the section? */ - if (reloc->address > isection->_cooked_size) - return bfd_reloc_outofrange; - - /* Work out which section the relocation is targetted at and the - initial relocation command value. */ - - /* Get symbol value. (Common symbols are special.) */ - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - /* Convert input-section-relative symbol value to absolute + addend. */ - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc->addend; - -#if 0 /* Since this reloc is going to be processed later on, we should - not make it pc-relative here. To test this, try assembling and - linking this program: - - .text - .globl _start - nop - _start: - jr foo - - .section ".foo","ax" - nop - foo: - nop - */ - if (reloc->howto->pc_relative == true) - { - /* Here the variable relocation holds the final address of the - symbol we are relocating against, plus any addend. */ - relocation -= isection->output_section->vma + isection->output_offset; - - /* Deal with pcrel_offset */ - relocation -= reloc->address; - } -#endif - reloc->addend = relocation; - return bfd_reloc_ok; -} - -static boolean -v850_elf_is_local_label_name (abfd, name) - bfd * abfd ATTRIBUTE_UNUSED; - const char * name; -{ - return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) - || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); -} - -/* Perform a relocation as part of a final link. */ -static bfd_reloc_status_type -v850_elf_final_link_relocate (howto, input_bfd, output_bfd, - input_section, contents, offset, value, - addend, info, sym_sec, is_local) - reloc_howto_type * howto; - bfd * input_bfd; - bfd * output_bfd ATTRIBUTE_UNUSED; - asection * input_section; - bfd_byte * contents; - bfd_vma offset; - bfd_vma value; - bfd_vma addend; - struct bfd_link_info * info; - asection * sym_sec; - int is_local ATTRIBUTE_UNUSED; -{ - unsigned long r_type = howto->type; - bfd_byte * hit_data = contents + offset; - - /* Adjust the value according to the relocation. */ - switch (r_type) - { - case R_V850_9_PCREL: - value -= (input_section->output_section->vma - + input_section->output_offset); - value -= offset; - break; - - case R_V850_22_PCREL: - value -= (input_section->output_section->vma - + input_section->output_offset - + offset); - - /* If the sign extension will corrupt the value then we have overflowed. */ - if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000)) - return bfd_reloc_overflow; - - value = SEXT24 (value); /* Only the bottom 24 bits of the PC are valid */ - break; - - case R_V850_HI16_S: - case R_V850_HI16: - case R_V850_LO16: - case R_V850_16: - case R_V850_32: - case R_V850_8: - break; - - case R_V850_ZDA_15_16_OFFSET: - case R_V850_ZDA_16_16_OFFSET: - case R_V850_ZDA_16_16_SPLIT_OFFSET: - if (sym_sec == NULL) - return bfd_reloc_undefined; - - value -= sym_sec->output_section->vma; - break; - - case R_V850_SDA_15_16_OFFSET: - case R_V850_SDA_16_16_OFFSET: - case R_V850_SDA_16_16_SPLIT_OFFSET: - { - unsigned long gp; - struct bfd_link_hash_entry * h; - - if (sym_sec == NULL) - return bfd_reloc_undefined; - - /* Get the value of __gp. */ - h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true); - if (h == (struct bfd_link_hash_entry *) NULL - || h->type != bfd_link_hash_defined) - return bfd_reloc_other; - - gp = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - - value -= sym_sec->output_section->vma; - value -= (gp - sym_sec->output_section->vma); - } - break; - - case R_V850_TDA_4_4_OFFSET: - case R_V850_TDA_4_5_OFFSET: - case R_V850_TDA_16_16_OFFSET: - case R_V850_TDA_7_7_OFFSET: - case R_V850_TDA_7_8_OFFSET: - case R_V850_TDA_6_8_OFFSET: - { - unsigned long ep; - struct bfd_link_hash_entry * h; - - /* Get the value of __ep. */ - h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true); - if (h == (struct bfd_link_hash_entry *) NULL - || h->type != bfd_link_hash_defined) - return bfd_reloc_continue; /* Actually this indicates that __ep could not be found. */ - - ep = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - - value -= ep; - } - break; - - case R_V850_CALLT_6_7_OFFSET: - { - unsigned long ctbp; - struct bfd_link_hash_entry * h; - - /* Get the value of __ctbp. */ - h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true); - if (h == (struct bfd_link_hash_entry *) NULL - || h->type != bfd_link_hash_defined) - return (bfd_reloc_dangerous + 1); /* Actually this indicates that __ctbp could not be found. */ - - ctbp = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - value -= ctbp; - } - break; - - case R_V850_CALLT_16_16_OFFSET: - { - unsigned long ctbp; - struct bfd_link_hash_entry * h; - - if (sym_sec == NULL) - return bfd_reloc_undefined; - - /* Get the value of __ctbp. */ - h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true); - if (h == (struct bfd_link_hash_entry *) NULL - || h->type != bfd_link_hash_defined) - return (bfd_reloc_dangerous + 1); - - ctbp = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - - value -= sym_sec->output_section->vma; - value -= (ctbp - sym_sec->output_section->vma); - } - break; - - case R_V850_NONE: - case R_V850_GNU_VTINHERIT: - case R_V850_GNU_VTENTRY: - return bfd_reloc_ok; - - default: - return bfd_reloc_notsupported; - } - - /* Perform the relocation. */ - return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); -} - -/* Relocate an V850 ELF section. */ -static boolean -v850_elf_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd * output_bfd; - struct bfd_link_info * info; - bfd * input_bfd; - asection * input_section; - bfd_byte * contents; - Elf_Internal_Rela * relocs; - Elf_Internal_Sym * local_syms; - asection ** local_sections; -{ - Elf_Internal_Shdr * symtab_hdr; - struct elf_link_hash_entry ** sym_hashes; - Elf_Internal_Rela * rel; - Elf_Internal_Rela * relend; - - symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - - if (sym_hashes == NULL) - { - info->callbacks->warning - (info, "no hash table available", NULL, input_bfd, input_section, 0); - - return false; - } - - /* Reset the list of remembered HI16S relocs to empty. */ - free_hi16s = previous_hi16s; - previous_hi16s = NULL; - hi16s_counter = 0; - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - int r_type; - reloc_howto_type * howto; - unsigned long r_symndx; - Elf_Internal_Sym * sym; - asection * sec; - struct elf_link_hash_entry * h; - bfd_vma relocation; - bfd_reloc_status_type r; - - r_symndx = ELF32_R_SYM (rel->r_info); - r_type = ELF32_R_TYPE (rel->r_info); - - if (r_type == R_V850_GNU_VTENTRY - || r_type == R_V850_GNU_VTINHERIT) - continue; - - howto = v850_elf_howto_table + r_type; - - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } - - continue; - } - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); -#if 0 - { - char * name; - name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name); - name = (name == NULL) ? "<none>" : name; -fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", - sec->name, name, sym->st_name, - sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend); - } -#endif - } - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - sec = h->root.u.def.section; - relocation = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); -#if 0 -fprintf (stderr, "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n", - sec->name, h->root.root.string, h->root.u.def.value, sec->output_section->vma, sec->output_offset, relocation); -#endif - } - else if (h->root.type == bfd_link_hash_undefweak) - { -#if 0 -fprintf (stderr, "undefined: sec: %s, name: %s\n", - sec->name, h->root.root.string); -#endif - relocation = 0; - } - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset, true))) - return false; -#if 0 -fprintf (stderr, "unknown: name: %s\n", h->root.root.string); -#endif - relocation = 0; - } - } - - /* FIXME: We should use the addend, but the COFF relocations - don't. */ - r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, - input_section, - contents, rel->r_offset, - relocation, rel->r_addend, - info, sec, h == NULL); - - if (r != bfd_reloc_ok) - { - const char * name; - const char * msg = (const char *)0; - - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (name == NULL || *name == '\0') - name = bfd_section_name (input_bfd, sec); - } - - switch (r) - { - case bfd_reloc_overflow: - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto->name, (bfd_vma) 0, - input_bfd, input_section, rel->r_offset))) - return false; - break; - - case bfd_reloc_undefined: - if (! ((*info->callbacks->undefined_symbol) - (info, name, input_bfd, input_section, - rel->r_offset, true))) - return false; - break; - - case bfd_reloc_outofrange: - msg = _("internal error: out of range error"); - goto common_error; - - case bfd_reloc_notsupported: - msg = _("internal error: unsupported relocation error"); - goto common_error; - - case bfd_reloc_dangerous: - msg = _("internal error: dangerous relocation"); - goto common_error; - - case bfd_reloc_other: - msg = _("could not locate special linker symbol __gp"); - goto common_error; - - case bfd_reloc_continue: - msg = _("could not locate special linker symbol __ep"); - goto common_error; - - case (bfd_reloc_dangerous + 1): - msg = _("could not locate special linker symbol __ctbp"); - goto common_error; - - default: - msg = _("internal error: unknown error"); - /* fall through */ - - common_error: - if (!((*info->callbacks->warning) - (info, msg, name, input_bfd, input_section, - rel->r_offset))) - return false; - break; - } - } - } - - return true; -} - -static boolean -v850_elf_gc_sweep_hook (abfd, info, sec, relocs) - bfd *abfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - asection *sec ATTRIBUTE_UNUSED; - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; -{ - /* No got and plt entries for v850-elf */ - return true; -} - -static asection * -v850_elf_gc_mark_hook (abfd, info, rel, h, sym) - bfd *abfd; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - Elf_Internal_Rela *rel; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; -{ - if (h != NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_V850_GNU_VTINHERIT: - case R_V850_GNU_VTENTRY: - break; - - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - { - if (!(elf_bad_symtab (abfd) - && ELF_ST_BIND (sym->st_info) != STB_LOCAL) - && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) - && sym->st_shndx != SHN_COMMON)) - { - return bfd_section_from_elf_index (abfd, sym->st_shndx); - } - } - return NULL; -} -/* Set the right machine number. */ -static boolean -v850_elf_object_p (abfd) - bfd *abfd; -{ - switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) - { - default: - case E_V850_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, 0); break; - case E_V850E_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); break; - case E_V850EA_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850ea); break; - } - return true; -} - -/* Store the machine number in the flags field. */ -static void -v850_elf_final_write_processing (abfd, linker) - bfd * abfd; - boolean linker ATTRIBUTE_UNUSED; -{ - unsigned long val; - - switch (bfd_get_mach (abfd)) - { - default: - case 0: val = E_V850_ARCH; break; - case bfd_mach_v850e: val = E_V850E_ARCH; break; - case bfd_mach_v850ea: val = E_V850EA_ARCH; break; - } - - elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; - elf_elfheader (abfd)->e_flags |= val; -} - -/* Function to keep V850 specific file flags. */ -static boolean -v850_elf_set_private_flags (abfd, flags) - bfd * abfd; - flagword flags; -{ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = true; - return true; -} - -/* Copy backend specific data from one object module to another */ -static boolean -v850_elf_copy_private_bfd_data (ibfd, obfd) - bfd * ibfd; - bfd * obfd; -{ - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - BFD_ASSERT (!elf_flags_init (obfd) - || (elf_elfheader (obfd)->e_flags - == elf_elfheader (ibfd)->e_flags)); - - elf_gp (obfd) = elf_gp (ibfd); - elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; - elf_flags_init (obfd) = true; - return true; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ -static boolean -v850_elf_merge_private_bfd_data (ibfd, obfd) - bfd * ibfd; - bfd * obfd; -{ - flagword out_flags; - flagword in_flags; - - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - in_flags = elf_elfheader (ibfd)->e_flags; - out_flags = elf_elfheader (obfd)->e_flags; - - if (! elf_flags_init (obfd)) - { - /* If the input is the default architecture then do not - bother setting the flags for the output architecture, - instead allow future merges to do this. If no future - merges ever set these flags then they will retain their - unitialised values, which surprise surprise, correspond - to the default values. */ - if (bfd_get_arch_info (ibfd)->the_default) - return true; - - elf_flags_init (obfd) = true; - elf_elfheader (obfd)->e_flags = in_flags; - - if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) - && bfd_get_arch_info (obfd)->the_default) - { - return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); - } - - return true; - } - - /* Check flag compatibility. */ - if (in_flags == out_flags) - return true; - - if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) - && (in_flags & EF_V850_ARCH) != E_V850_ARCH) - _bfd_error_handler (_("%s: Architecture mismatch with previous modules"), - bfd_get_filename (ibfd)); - - return true; -} -/* Display the flags field */ - -static boolean -v850_elf_print_private_bfd_data (abfd, ptr) - bfd * abfd; - PTR ptr; -{ - FILE * file = (FILE *) ptr; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - _bfd_elf_print_private_bfd_data (abfd, ptr); - - /* xgettext:c-format */ - fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); - - switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) - { - default: - case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; - case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; - case E_V850EA_ARCH: fprintf (file, _("v850ea architecture")); break; - } - - fputc ('\n', file); - - return true; -} - -/* V850 ELF uses four common sections. One is the usual one, and the - others are for (small) objects in one of the special data areas: - small, tiny and zero. All the objects are kept together, and then - referenced via the gp register, the ep register or the r0 register - respectively, which yields smaller, faster assembler code. This - approach is copied from elf32-mips.c. */ - -static asection v850_elf_scom_section; -static asymbol v850_elf_scom_symbol; -static asymbol * v850_elf_scom_symbol_ptr; -static asection v850_elf_tcom_section; -static asymbol v850_elf_tcom_symbol; -static asymbol * v850_elf_tcom_symbol_ptr; -static asection v850_elf_zcom_section; -static asymbol v850_elf_zcom_symbol; -static asymbol * v850_elf_zcom_symbol_ptr; - -/* Given a BFD section, try to locate the corresponding ELF section - index. */ - -static boolean -v850_elf_section_from_bfd_section (abfd, hdr, sec, retval) - bfd * abfd ATTRIBUTE_UNUSED; - Elf32_Internal_Shdr * hdr ATTRIBUTE_UNUSED; - asection * sec; - int * retval; -{ - if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) - *retval = SHN_V850_SCOMMON; - else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) - *retval = SHN_V850_TCOMMON; - else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) - *retval = SHN_V850_ZCOMMON; - else - return false; - - return true; -} - -/* Handle the special V850 section numbers that a symbol may use. */ - -static void -v850_elf_symbol_processing (abfd, asym) - bfd * abfd; - asymbol * asym; -{ - elf_symbol_type * elfsym = (elf_symbol_type *) asym; - unsigned short index; - - index = elfsym->internal_elf_sym.st_shndx; - - /* If the section index is an "ordinary" index, then it may - refer to a v850 specific section created by the assembler. - Check the section's type and change the index it matches. - - FIXME: Should we alter the st_shndx field as well ? */ - - if (index < elf_elfheader(abfd)[0].e_shnum) - switch (elf_elfsections(abfd)[index]->sh_type) - { - case SHT_V850_SCOMMON: - index = SHN_V850_SCOMMON; - break; - - case SHT_V850_TCOMMON: - index = SHN_V850_TCOMMON; - break; - - case SHT_V850_ZCOMMON: - index = SHN_V850_ZCOMMON; - break; - - default: - break; - } - - switch (index) - { - case SHN_V850_SCOMMON: - if (v850_elf_scom_section.name == NULL) - { - /* Initialize the small common section. */ - v850_elf_scom_section.name = ".scommon"; - v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; - v850_elf_scom_section.output_section = & v850_elf_scom_section; - v850_elf_scom_section.symbol = & v850_elf_scom_symbol; - v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; - v850_elf_scom_symbol.name = ".scommon"; - v850_elf_scom_symbol.flags = BSF_SECTION_SYM; - v850_elf_scom_symbol.section = & v850_elf_scom_section; - v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; - } - asym->section = & v850_elf_scom_section; - asym->value = elfsym->internal_elf_sym.st_size; - break; - - case SHN_V850_TCOMMON: - if (v850_elf_tcom_section.name == NULL) - { - /* Initialize the tcommon section. */ - v850_elf_tcom_section.name = ".tcommon"; - v850_elf_tcom_section.flags = SEC_IS_COMMON; - v850_elf_tcom_section.output_section = & v850_elf_tcom_section; - v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; - v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; - v850_elf_tcom_symbol.name = ".tcommon"; - v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; - v850_elf_tcom_symbol.section = & v850_elf_tcom_section; - v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; - } - asym->section = & v850_elf_tcom_section; - asym->value = elfsym->internal_elf_sym.st_size; - break; - - case SHN_V850_ZCOMMON: - if (v850_elf_zcom_section.name == NULL) - { - /* Initialize the zcommon section. */ - v850_elf_zcom_section.name = ".zcommon"; - v850_elf_zcom_section.flags = SEC_IS_COMMON; - v850_elf_zcom_section.output_section = & v850_elf_zcom_section; - v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; - v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; - v850_elf_zcom_symbol.name = ".zcommon"; - v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; - v850_elf_zcom_symbol.section = & v850_elf_zcom_section; - v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; - } - asym->section = & v850_elf_zcom_section; - asym->value = elfsym->internal_elf_sym.st_size; - break; - } -} - -/* Hook called by the linker routine which adds symbols from an object - file. We must handle the special v850 section numbers here. */ - -static boolean -v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) - bfd * abfd; - struct bfd_link_info * info ATTRIBUTE_UNUSED; - const Elf_Internal_Sym * sym; - const char ** namep ATTRIBUTE_UNUSED; - flagword * flagsp ATTRIBUTE_UNUSED; - asection ** secp; - bfd_vma * valp; -{ - int index = sym->st_shndx; - - /* If the section index is an "ordinary" index, then it may - refer to a v850 specific section created by the assembler. - Check the section's type and change the index it matches. - - FIXME: Should we alter the st_shndx field as well ? */ - - if (index < elf_elfheader(abfd)[0].e_shnum) - switch (elf_elfsections(abfd)[index]->sh_type) - { - case SHT_V850_SCOMMON: - index = SHN_V850_SCOMMON; - break; - - case SHT_V850_TCOMMON: - index = SHN_V850_TCOMMON; - break; - - case SHT_V850_ZCOMMON: - index = SHN_V850_ZCOMMON; - break; - - default: - break; - } - - switch (index) - { - case SHN_V850_SCOMMON: - *secp = bfd_make_section_old_way (abfd, ".scommon"); - (*secp)->flags |= SEC_IS_COMMON; - *valp = sym->st_size; - break; - - case SHN_V850_TCOMMON: - *secp = bfd_make_section_old_way (abfd, ".tcommon"); - (*secp)->flags |= SEC_IS_COMMON; - *valp = sym->st_size; - break; - - case SHN_V850_ZCOMMON: - *secp = bfd_make_section_old_way (abfd, ".zcommon"); - (*secp)->flags |= SEC_IS_COMMON; - *valp = sym->st_size; - break; - } - - return true; -} - -/*ARGSIGNORED*/ -static boolean -v850_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec) - bfd * abfd ATTRIBUTE_UNUSED; - struct bfd_link_info * info ATTRIBUTE_UNUSED; - const char * name ATTRIBUTE_UNUSED; - Elf_Internal_Sym * sym; - asection * input_sec; -{ - /* If we see a common symbol, which implies a relocatable link, then - if a symbol was in a special common section in an input file, mark - it as a special common in the output file. */ - - if (sym->st_shndx == SHN_COMMON) - { - if (strcmp (input_sec->name, ".scommon") == 0) - sym->st_shndx = SHN_V850_SCOMMON; - else if (strcmp (input_sec->name, ".tcommon") == 0) - sym->st_shndx = SHN_V850_TCOMMON; - else if (strcmp (input_sec->name, ".zcommon") == 0) - sym->st_shndx = SHN_V850_ZCOMMON; - } - - return true; -} - -static boolean -v850_elf_section_from_shdr (abfd, hdr, name) - bfd * abfd; - Elf_Internal_Shdr * hdr; - char * name; -{ - /* There ought to be a place to keep ELF backend specific flags, but - at the moment there isn't one. We just keep track of the - sections by their name, instead. */ - - if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) - return false; - - switch (hdr->sh_type) - { - case SHT_V850_SCOMMON: - case SHT_V850_TCOMMON: - case SHT_V850_ZCOMMON: - if (! bfd_set_section_flags (abfd, hdr->bfd_section, - (bfd_get_section_flags (abfd, - hdr->bfd_section) - | SEC_IS_COMMON))) - return false; - } - - return true; -} - -/* Set the correct type for a V850 ELF section. We do this by the - section name, which is a hack, but ought to work. */ -static boolean -v850_elf_fake_sections (abfd, hdr, sec) - bfd * abfd ATTRIBUTE_UNUSED; - Elf32_Internal_Shdr * hdr; - asection * sec; -{ - register const char * name; - - name = bfd_get_section_name (abfd, sec); - - if (strcmp (name, ".scommon") == 0) - { - hdr->sh_type = SHT_V850_SCOMMON; - } - else if (strcmp (name, ".tcommon") == 0) - { - hdr->sh_type = SHT_V850_TCOMMON; - } - else if (strcmp (name, ".zcommon") == 0) - hdr->sh_type = SHT_V850_ZCOMMON; - - return true; -} - -#define TARGET_LITTLE_SYM bfd_elf32_v850_vec -#define TARGET_LITTLE_NAME "elf32-v850" -#define ELF_ARCH bfd_arch_v850 -#define ELF_MACHINE_CODE EM_CYGNUS_V850 -#define ELF_MAXPAGESIZE 0x1000 - -#define elf_info_to_howto v850_elf_info_to_howto_rela -#define elf_info_to_howto_rel v850_elf_info_to_howto_rel - -#define elf_backend_check_relocs v850_elf_check_relocs -#define elf_backend_relocate_section v850_elf_relocate_section -#define elf_backend_object_p v850_elf_object_p -#define elf_backend_final_write_processing v850_elf_final_write_processing -#define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section -#define elf_backend_symbol_processing v850_elf_symbol_processing -#define elf_backend_add_symbol_hook v850_elf_add_symbol_hook -#define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook -#define elf_backend_section_from_shdr v850_elf_section_from_shdr -#define elf_backend_fake_sections v850_elf_fake_sections -#define elf_backend_gc_mark_hook v850_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook v850_elf_gc_sweep_hook - -#define elf_backend_can_gc_sections 1 - -#define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name -#define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup -#define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data -#define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data -#define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags -#define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data - -#define elf_symbol_leading_char '_' - -#include "elf32-target.h" diff --git a/contrib/binutils/bfd/elf64-mips.c b/contrib/binutils/bfd/elf64-mips.c deleted file mode 100644 index 6fc0dcdf0e4b9..0000000000000 --- a/contrib/binutils/bfd/elf64-mips.c +++ /dev/null @@ -1,2190 +0,0 @@ -/* MIPS-specific support for 64-bit ELF - Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc. - Ian Lance Taylor, Cygnus Support - Linker support added by Mark Mitchell, CodeSourcery, LLC. - <mark@codesourcery.com> - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* This file supports the 64-bit MIPS ELF ABI. - - The MIPS 64-bit ELF ABI uses an unusual reloc format. This file - overrides the usual ELF reloc handling, and handles reading and - writing the relocations here. - - The MIPS 64-bit ELF ABI also uses an unusual archive map format. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "aout/ar.h" -#include "bfdlink.h" -#include "genlink.h" -#include "elf-bfd.h" -#include "elf/mips.h" - -/* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to - use ECOFF. However, we support it anyhow for an easier changeover. */ -#include "coff/sym.h" -#include "coff/symconst.h" -#include "coff/internal.h" -#include "coff/ecoff.h" -/* The 64 bit versions of the mdebug data structures are in alpha.h. */ -#include "coff/alpha.h" -#define ECOFF_64 -#include "ecoffswap.h" - -static void mips_elf64_swap_reloc_in - PARAMS ((bfd *, const Elf64_Mips_External_Rel *, - Elf64_Mips_Internal_Rel *)); -static void mips_elf64_swap_reloca_in - PARAMS ((bfd *, const Elf64_Mips_External_Rela *, - Elf64_Mips_Internal_Rela *)); -static void mips_elf64_swap_reloc_out - PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *, - Elf64_Mips_External_Rel *)); -static void mips_elf64_swap_reloca_out - PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *, - Elf64_Mips_External_Rela *)); -static void mips_elf64_be_swap_reloc_in - PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rel *)); -static void mips_elf64_be_swap_reloc_out - PARAMS ((bfd *, const Elf_Internal_Rel *, bfd_byte *)); -static void mips_elf64_be_swap_reloca_in - PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rela *)); -static void mips_elf64_be_swap_reloca_out - PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *)); -static reloc_howto_type *mips_elf64_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *)); -static boolean mips_elf64_slurp_one_reloc_table - PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *)); -static boolean mips_elf64_slurp_reloc_table - PARAMS ((bfd *, asection *, asymbol **, boolean)); -static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR)); -static boolean mips_elf64_slurp_armap PARAMS ((bfd *)); -static boolean mips_elf64_write_armap - PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); - -/* In case we're on a 32-bit machine, construct a 64-bit "-1" value - from smaller values. Start with zero, widen, *then* decrement. */ -#define MINUS_ONE (((bfd_vma)0) - 1) - -/* The number of local .got entries we reserve. */ -#define MIPS_RESERVED_GOTNO (2) - -/* The relocation table used for SHT_REL sections. */ - -static reloc_howto_type mips_elf64_howto_table_rel[] = -{ - /* No relocation. */ - HOWTO (R_MIPS_NONE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit relocation. */ - HOWTO (R_MIPS_16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit relocation. */ - HOWTO (R_MIPS_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit symbol relative relocation. */ - HOWTO (R_MIPS_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_REL32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 26 bit branch address. */ - HOWTO (R_MIPS_26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_26", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of symbol value. */ - HOWTO (R_MIPS_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_hi16_reloc, /* special_function */ - "R_MIPS_HI16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of symbol value. */ - HOWTO (R_MIPS_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_lo16_reloc, /* special_function */ - "R_MIPS_LO16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* GP relative reference. */ - HOWTO (R_MIPS_GPREL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_GPREL16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to literal section. */ - HOWTO (R_MIPS_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_LITERAL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to global offset table. */ - HOWTO (R_MIPS_GOT16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_got16_reloc, /* special_function */ - "R_MIPS_GOT16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit PC relative reference. */ - HOWTO (R_MIPS_PC16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PC16", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit call through global offset table. */ - /* FIXME: This is not handled correctly. */ - HOWTO (R_MIPS_CALL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit GP relative reference. */ - HOWTO (R_MIPS_GPREL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - _bfd_mips_elf_gprel32_reloc, /* special_function */ - "R_MIPS_GPREL32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - { 13 }, - { 14 }, - { 15 }, - - /* A 5 bit shift field. */ - HOWTO (R_MIPS_SHIFT5, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 5, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT5", /* name */ - true, /* partial_inplace */ - 0x000007c0, /* src_mask */ - 0x000007c0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 6 bit shift field. */ - /* FIXME: This is not handled correctly; a special function is - needed to put the most significant bit in the right place. */ - HOWTO (R_MIPS_SHIFT6, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 6, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT6", /* name */ - true, /* partial_inplace */ - 0x000007c4, /* src_mask */ - 0x000007c4, /* dst_mask */ - false), /* pcrel_offset */ - - /* 64 bit relocation. */ - HOWTO (R_MIPS_64, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_64", /* name */ - true, /* partial_inplace */ - MINUS_ONE, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_DISP, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_DISP", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement to page pointer in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_PAGE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_PAGE", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Offset from page pointer in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_OFST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_OFST", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_HI16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_LO16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 64 bit substraction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_SUB, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SUB", /* name */ - true, /* partial_inplace */ - MINUS_ONE, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Insert the addend as an instruction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_INSERT_A, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_INSERT_A", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Insert the addend as an instruction, and change all relocations - to refer to the old instruction at the address. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_INSERT_B, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_INSERT_B", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Delete a 32 bit instruction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_DELETE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_DELETE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Get the higher value of a 64 bit addend. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_HIGHER, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHER", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Get the highest value of a 64 bit addend. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_HIGHEST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHEST", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_CALL_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_HI16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_CALL_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_LO16", /* name */ - true, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* I'm not sure what the remaining relocs are, but they are defined - on Irix 6. */ - - HOWTO (R_MIPS_SCN_DISP, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SCN_DISP", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_REL16, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_REL16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_ADD_IMMEDIATE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_PJUMP, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PJUMP", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_RELGOT, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_RELGOT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Protected jump conversion. This is an optimization hint. No - relocation is required for correctness. */ - HOWTO (R_MIPS_JALR, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_JALR", /* name */ - false, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0x00000000, /* dst_mask */ - false), /* pcrel_offset */ -}; - -/* The relocation table used for SHT_RELA sections. */ - -static reloc_howto_type mips_elf64_howto_table_rela[] = -{ - /* No relocation. */ - HOWTO (R_MIPS_NONE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit relocation. */ - HOWTO (R_MIPS_16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit relocation. */ - HOWTO (R_MIPS_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_32", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit symbol relative relocation. */ - HOWTO (R_MIPS_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_REL32", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 26 bit branch address. */ - HOWTO (R_MIPS_26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_26", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of symbol value. */ - HOWTO (R_MIPS_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HI16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of symbol value. */ - HOWTO (R_MIPS_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_LO16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* GP relative reference. */ - HOWTO (R_MIPS_GPREL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_GPREL16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to literal section. */ - HOWTO (R_MIPS_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_gprel16_reloc, /* special_function */ - "R_MIPS_LITERAL", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Reference to global offset table. */ - /* FIXME: This is not handled correctly. */ - HOWTO (R_MIPS_GOT16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit PC relative reference. */ - HOWTO (R_MIPS_PC16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - true, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PC16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 16 bit call through global offset table. */ - /* FIXME: This is not handled correctly. */ - HOWTO (R_MIPS_CALL16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 32 bit GP relative reference. */ - HOWTO (R_MIPS_GPREL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - _bfd_mips_elf_gprel32_reloc, /* special_function */ - "R_MIPS_GPREL32", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - { 13 }, - { 14 }, - { 15 }, - - /* A 5 bit shift field. */ - HOWTO (R_MIPS_SHIFT5, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 5, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT5", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x000007c0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 6 bit shift field. */ - /* FIXME: This is not handled correctly; a special function is - needed to put the most significant bit in the right place. */ - HOWTO (R_MIPS_SHIFT6, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 6, /* bitsize */ - false, /* pc_relative */ - 6, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SHIFT6", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x000007c4, /* dst_mask */ - false), /* pcrel_offset */ - - /* 64 bit relocation. */ - HOWTO (R_MIPS_64, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_64", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_DISP, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_DISP", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Displacement to page pointer in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_PAGE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_PAGE", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Offset from page pointer in the global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_OFST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_OFST", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_HI16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_GOT_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_GOT_LO16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* 64 bit substraction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_SUB, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SUB", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Insert the addend as an instruction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_INSERT_A, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_INSERT_A", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Insert the addend as an instruction, and change all relocations - to refer to the old instruction at the address. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_INSERT_B, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_INSERT_B", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Delete a 32 bit instruction. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_DELETE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_DELETE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Get the higher value of a 64 bit addend. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_HIGHER, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHER", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Get the highest value of a 64 bit addend. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_HIGHEST, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_HIGHEST", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* High 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_CALL_HI16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_HI16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* Low 16 bits of displacement in global offset table. */ - /* FIXME: Not handled correctly. */ - HOWTO (R_MIPS_CALL_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_CALL_LO16", /* name */ - true, /* partial_inplace */ - 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* I'm not sure what the remaining relocs are, but they are defined - on Irix 6. */ - - HOWTO (R_MIPS_SCN_DISP, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_SCN_DISP", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_REL16, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_REL16", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_ADD_IMMEDIATE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_PJUMP, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_PJUMP", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - HOWTO (R_MIPS_RELGOT, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_RELGOT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Protected jump conversion. This is an optimization hint. No - relocation is required for correctness. */ - HOWTO (R_MIPS_JALR, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MIPS_JALR", /* name */ - false, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0x00000000, /* dst_mask */ - false), /* pcrel_offset */ -}; - -/* Swap in a MIPS 64-bit Rel reloc. */ - -static void -mips_elf64_swap_reloc_in (abfd, src, dst) - bfd *abfd; - const Elf64_Mips_External_Rel *src; - Elf64_Mips_Internal_Rel *dst; -{ - dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); - dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); - dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); - dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); - dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); - dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); -} - -/* Swap in a MIPS 64-bit Rela reloc. */ - -static void -mips_elf64_swap_reloca_in (abfd, src, dst) - bfd *abfd; - const Elf64_Mips_External_Rela *src; - Elf64_Mips_Internal_Rela *dst; -{ - dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset); - dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym); - dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym); - dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3); - dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2); - dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type); - dst->r_addend = bfd_h_get_signed_64 (abfd, (bfd_byte *) src->r_addend); -} - -/* Swap out a MIPS 64-bit Rel reloc. */ - -static void -mips_elf64_swap_reloc_out (abfd, src, dst) - bfd *abfd; - const Elf64_Mips_Internal_Rel *src; - Elf64_Mips_External_Rel *dst; -{ - bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); - bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); - bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); - bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); - bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); - bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); -} - -/* Swap out a MIPS 64-bit Rela reloc. */ - -static void -mips_elf64_swap_reloca_out (abfd, src, dst) - bfd *abfd; - const Elf64_Mips_Internal_Rela *src; - Elf64_Mips_External_Rela *dst; -{ - bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset); - bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym); - bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym); - bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3); - bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2); - bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type); - bfd_h_put_64 (abfd, src->r_addend, (bfd_byte *) dst->r_addend); -} - -/* Swap in a MIPS 64-bit Rel reloc. */ - -static void -mips_elf64_be_swap_reloc_in (abfd, src, dst) - bfd *abfd; - const bfd_byte *src; - Elf_Internal_Rel *dst; -{ - Elf64_Mips_Internal_Rel mirel; - - mips_elf64_swap_reloc_in (abfd, - (const Elf64_Mips_External_Rel *) src, - &mirel); - - dst[0].r_offset = mirel.r_offset; - dst[0].r_info = ELF32_R_INFO (mirel.r_sym, mirel.r_type); - dst[1].r_offset = mirel.r_offset; - dst[1].r_info = ELF32_R_INFO (mirel.r_ssym, mirel.r_type2); - dst[2].r_offset = mirel.r_offset; - dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirel.r_type3); -} - -/* Swap in a MIPS 64-bit Rela reloc. */ - -static void -mips_elf64_be_swap_reloca_in (abfd, src, dst) - bfd *abfd; - const bfd_byte *src; - Elf_Internal_Rela *dst; -{ - Elf64_Mips_Internal_Rela mirela; - - mips_elf64_swap_reloca_in (abfd, - (const Elf64_Mips_External_Rela *) src, - &mirela); - - dst[0].r_offset = mirela.r_offset; - dst[0].r_info = ELF32_R_INFO (mirela.r_sym, mirela.r_type); - dst[0].r_addend = mirela.r_addend; - dst[1].r_offset = mirela.r_offset; - dst[1].r_info = ELF32_R_INFO (mirela.r_ssym, mirela.r_type2); - dst[1].r_addend = 0; - dst[2].r_offset = mirela.r_offset; - dst[2].r_info = ELF32_R_INFO (STN_UNDEF, mirela.r_type3); - dst[2].r_addend = 0; -} - -/* Swap out a MIPS 64-bit Rel reloc. */ - -static void -mips_elf64_be_swap_reloc_out (abfd, src, dst) - bfd *abfd; - const Elf_Internal_Rel *src; - bfd_byte *dst; -{ - Elf64_Mips_Internal_Rel mirel; - - mirel.r_offset = src->r_offset; - mirel.r_type = ELF32_R_TYPE (src->r_info); - mirel.r_sym = ELF32_R_SYM (src->r_info); - mirel.r_type2 = R_MIPS_NONE; - mirel.r_ssym = STN_UNDEF; - mirel.r_type3 = R_MIPS_NONE; - - mips_elf64_swap_reloc_out (abfd, &mirel, - (Elf64_Mips_External_Rel *) dst); -} - -/* Swap out a MIPS 64-bit Rela reloc. */ - -static void -mips_elf64_be_swap_reloca_out (abfd, src, dst) - bfd *abfd; - const Elf_Internal_Rela *src; - bfd_byte *dst; -{ - Elf64_Mips_Internal_Rela mirela; - - mirela.r_offset = src->r_offset; - mirela.r_type = ELF32_R_TYPE (src->r_info); - mirela.r_addend = src->r_addend; - mirela.r_sym = ELF32_R_SYM (src->r_info); - mirela.r_type2 = R_MIPS_NONE; - mirela.r_ssym = STN_UNDEF; - mirela.r_type3 = R_MIPS_NONE; - - mips_elf64_swap_reloca_out (abfd, &mirela, - (Elf64_Mips_External_Rela *) dst); -} - -/* A mapping from BFD reloc types to MIPS ELF reloc types. */ - -struct elf_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - enum elf_mips_reloc_type elf_reloc_val; -}; - -static CONST struct elf_reloc_map mips_reloc_map[] = -{ - { BFD_RELOC_NONE, R_MIPS_NONE, }, - { BFD_RELOC_16, R_MIPS_16 }, - { BFD_RELOC_32, R_MIPS_32 }, - { BFD_RELOC_64, R_MIPS_64 }, - { BFD_RELOC_CTOR, R_MIPS_64 }, - { BFD_RELOC_32_PCREL, R_MIPS_REL32 }, - { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, - { BFD_RELOC_HI16_S, R_MIPS_HI16 }, - { BFD_RELOC_LO16, R_MIPS_LO16 }, - { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, - { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, - { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, - { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, - { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, - { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, - { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, - { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, - { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, - { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, - { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, - { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, - { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, - { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP } -}; - -/* Given a BFD reloc type, return a howto structure. */ - -static reloc_howto_type * -mips_elf64_reloc_type_lookup (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ - unsigned int i; - - for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) - { - if (mips_reloc_map[i].bfd_reloc_val == code) - { - int v; - - v = (int) mips_reloc_map[i].elf_reloc_val; - return &mips_elf64_howto_table_rel[v]; - } - } - - return NULL; -} - -/* Since each entry in an SHT_REL or SHT_RELA section can represent up - to three relocs, we must tell the user to allocate more space. */ - -static long -mips_elf64_get_reloc_upper_bound (abfd, sec) - bfd *abfd; - asection *sec; -{ - return (sec->reloc_count * 3 + 1) * sizeof (arelent *); -} - -/* Read the relocations from one reloc section. */ - -static boolean -mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr) - bfd *abfd; - asection *asect; - asymbol **symbols; - const Elf_Internal_Shdr *rel_hdr; -{ - PTR allocated = NULL; - bfd_byte *native_relocs; - arelent *relents; - arelent *relent; - unsigned int count; - unsigned int i; - int entsize; - reloc_howto_type *howto_table; - - allocated = (PTR) bfd_malloc (rel_hdr->sh_size); - if (allocated == NULL) - goto error_return; - - if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) != rel_hdr->sh_size)) - goto error_return; - - native_relocs = (bfd_byte *) allocated; - - relents = asect->relocation + asect->reloc_count; - - entsize = rel_hdr->sh_entsize; - BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel) - || entsize == sizeof (Elf64_Mips_External_Rela)); - - count = rel_hdr->sh_size / entsize; - - if (entsize == sizeof (Elf64_Mips_External_Rel)) - howto_table = mips_elf64_howto_table_rel; - else - howto_table = mips_elf64_howto_table_rela; - - relent = relents; - for (i = 0; i < count; i++, native_relocs += entsize) - { - Elf64_Mips_Internal_Rela rela; - boolean used_sym, used_ssym; - int ir; - - if (entsize == sizeof (Elf64_Mips_External_Rela)) - mips_elf64_swap_reloca_in (abfd, - (Elf64_Mips_External_Rela *) native_relocs, - &rela); - else - { - Elf64_Mips_Internal_Rel rel; - - mips_elf64_swap_reloc_in (abfd, - (Elf64_Mips_External_Rel *) native_relocs, - &rel); - rela.r_offset = rel.r_offset; - rela.r_sym = rel.r_sym; - rela.r_ssym = rel.r_ssym; - rela.r_type3 = rel.r_type3; - rela.r_type2 = rel.r_type2; - rela.r_type = rel.r_type; - rela.r_addend = 0; - } - - /* Each entry represents up to three actual relocations. */ - - used_sym = false; - used_ssym = false; - for (ir = 0; ir < 3; ir++) - { - enum elf_mips_reloc_type type; - - switch (ir) - { - default: - abort (); - case 0: - type = (enum elf_mips_reloc_type) rela.r_type; - break; - case 1: - type = (enum elf_mips_reloc_type) rela.r_type2; - break; - case 2: - type = (enum elf_mips_reloc_type) rela.r_type3; - break; - } - - if (type == R_MIPS_NONE) - { - /* There are no more relocations in this entry. If this - is the first entry, we need to generate a dummy - relocation so that the generic linker knows that - there has been a break in the sequence of relocations - applying to a particular address. */ - if (ir == 0) - { - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) - relent->address = rela.r_offset; - else - relent->address = rela.r_offset - asect->vma; - relent->addend = 0; - relent->howto = &howto_table[(int) R_MIPS_NONE]; - ++relent; - } - break; - } - - /* Some types require symbols, whereas some do not. */ - switch (type) - { - case R_MIPS_NONE: - case R_MIPS_LITERAL: - case R_MIPS_INSERT_A: - case R_MIPS_INSERT_B: - case R_MIPS_DELETE: - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - break; - - default: - if (! used_sym) - { - if (rela.r_sym == 0) - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - else - { - asymbol **ps, *s; - - ps = symbols + rela.r_sym - 1; - s = *ps; - if ((s->flags & BSF_SECTION_SYM) == 0) - relent->sym_ptr_ptr = ps; - else - relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; - } - - used_sym = true; - } - else if (! used_ssym) - { - switch (rela.r_ssym) - { - case RSS_UNDEF: - relent->sym_ptr_ptr = - bfd_abs_section_ptr->symbol_ptr_ptr; - break; - - case RSS_GP: - case RSS_GP0: - case RSS_LOC: - /* FIXME: I think these need to be handled using - special howto structures. */ - BFD_ASSERT (0); - break; - - default: - BFD_ASSERT (0); - break; - } - - used_ssym = true; - } - else - relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; - - break; - } - - /* The address of an ELF reloc is section relative for an - object file, and absolute for an executable file or - shared library. The address of a BFD reloc is always - section relative. */ - if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) - relent->address = rela.r_offset; - else - relent->address = rela.r_offset - asect->vma; - - relent->addend = rela.r_addend; - - relent->howto = &howto_table[(int) type]; - - ++relent; - } - } - - asect->reloc_count += relent - relents; - - if (allocated != NULL) - free (allocated); - - return true; - - error_return: - if (allocated != NULL) - free (allocated); - return false; -} - -/* Read the relocations. On Irix 6, there can be two reloc sections - associated with a single data section. */ - -static boolean -mips_elf64_slurp_reloc_table (abfd, asect, symbols, dynamic) - bfd *abfd; - asection *asect; - asymbol **symbols; - boolean dynamic; -{ - struct bfd_elf_section_data * const d = elf_section_data (asect); - - if (dynamic) - { - bfd_set_error (bfd_error_invalid_operation); - return false; - } - - if (asect->relocation != NULL - || (asect->flags & SEC_RELOC) == 0 - || asect->reloc_count == 0) - return true; - - /* Allocate space for 3 arelent structures for each Rel structure. */ - asect->relocation = ((arelent *) - bfd_alloc (abfd, - asect->reloc_count * 3 * sizeof (arelent))); - if (asect->relocation == NULL) - return false; - - /* The slurp_one_reloc_table routine increments reloc_count. */ - asect->reloc_count = 0; - - if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr)) - return false; - if (d->rel_hdr2 != NULL) - { - if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, - d->rel_hdr2)) - return false; - } - - return true; -} - -/* Write out the relocations. */ - -static void -mips_elf64_write_relocs (abfd, sec, data) - bfd *abfd; - asection *sec; - PTR data; -{ - boolean *failedp = (boolean *) data; - unsigned int count; - Elf_Internal_Shdr *rela_hdr; - Elf64_Mips_External_Rela *ext_rela; - unsigned int idx; - asymbol *last_sym = 0; - int last_sym_idx = 0; - - /* If we have already failed, don't do anything. */ - if (*failedp) - return; - - if ((sec->flags & SEC_RELOC) == 0) - return; - - /* The linker backend writes the relocs out itself, and sets the - reloc_count field to zero to inhibit writing them here. Also, - sometimes the SEC_RELOC flag gets set even when there aren't any - relocs. */ - if (sec->reloc_count == 0) - return; - - /* We can combine up to three relocs that refer to the same address - if the latter relocs have no associated symbol. */ - count = 0; - for (idx = 0; idx < sec->reloc_count; idx++) - { - bfd_vma addr; - unsigned int i; - - ++count; - - addr = sec->orelocation[idx]->address; - for (i = 0; i < 2; i++) - { - arelent *r; - - if (idx + 1 >= sec->reloc_count) - break; - r = sec->orelocation[idx + 1]; - if (r->address != addr - || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) - || (*r->sym_ptr_ptr)->value != 0) - break; - - /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ - - ++idx; - } - } - - rela_hdr = &elf_section_data (sec)->rel_hdr; - - rela_hdr->sh_size = rela_hdr->sh_entsize * count; - rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); - if (rela_hdr->contents == NULL) - { - *failedp = true; - return; - } - - ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents; - for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++) - { - arelent *ptr; - Elf64_Mips_Internal_Rela int_rela; - asymbol *sym; - int n; - unsigned int i; - - ptr = sec->orelocation[idx]; - - /* The address of an ELF reloc is section relative for an object - file, and absolute for an executable file or shared library. - The address of a BFD reloc is always section relative. */ - if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) - int_rela.r_offset = ptr->address; - else - int_rela.r_offset = ptr->address + sec->vma; - - sym = *ptr->sym_ptr_ptr; - if (sym == last_sym) - n = last_sym_idx; - else - { - last_sym = sym; - n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); - if (n < 0) - { - *failedp = true; - return; - } - last_sym_idx = n; - } - - int_rela.r_sym = n; - - int_rela.r_addend = ptr->addend; - - int_rela.r_ssym = RSS_UNDEF; - - if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec - && ! _bfd_elf_validate_reloc (abfd, ptr)) - { - *failedp = true; - return; - } - - int_rela.r_type = ptr->howto->type; - int_rela.r_type2 = (int) R_MIPS_NONE; - int_rela.r_type3 = (int) R_MIPS_NONE; - - for (i = 0; i < 2; i++) - { - arelent *r; - - if (idx + 1 >= sec->reloc_count) - break; - r = sec->orelocation[idx + 1]; - if (r->address != ptr->address - || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) - || (*r->sym_ptr_ptr)->value != 0) - break; - - /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ - - if (i == 0) - int_rela.r_type2 = r->howto->type; - else - int_rela.r_type3 = r->howto->type; - - ++idx; - } - - mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela); - } - - BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents - == count); -} - -/* Irix 6 defines a brand new archive map format, so that they can - have archives more than 4 GB in size. */ - -/* Read an Irix 6 armap. */ - -static boolean -mips_elf64_slurp_armap (abfd) - bfd *abfd; -{ - struct artdata *ardata = bfd_ardata (abfd); - char nextname[17]; - file_ptr arhdrpos; - bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize; - struct areltdata *mapdata; - bfd_byte int_buf[8]; - char *stringbase; - bfd_byte *raw_armap = NULL; - carsym *carsyms; - - ardata->symdefs = NULL; - - /* Get the name of the first element. */ - arhdrpos = bfd_tell (abfd); - i = bfd_read ((PTR) nextname, 1, 16, abfd); - if (i == 0) - return true; - if (i != 16) - return false; - - if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0) - return false; - - /* Archives with traditional armaps are still permitted. */ - if (strncmp (nextname, "/ ", 16) == 0) - return bfd_slurp_armap (abfd); - - if (strncmp (nextname, "/SYM64/ ", 16) != 0) - { - bfd_has_map (abfd) = false; - return true; - } - - mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd); - if (mapdata == NULL) - return false; - parsed_size = mapdata->parsed_size; - bfd_release (abfd, (PTR) mapdata); - - if (bfd_read (int_buf, 1, 8, abfd) != 8) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_malformed_archive); - return false; - } - - nsymz = bfd_getb64 (int_buf); - stringsize = parsed_size - 8 * nsymz - 8; - - carsym_size = nsymz * sizeof (carsym); - ptrsize = 8 * nsymz; - - ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1); - if (ardata->symdefs == NULL) - return false; - carsyms = ardata->symdefs; - stringbase = ((char *) ardata->symdefs) + carsym_size; - - raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize); - if (raw_armap == NULL) - goto error_return; - - if (bfd_read (raw_armap, 1, ptrsize, abfd) != ptrsize - || bfd_read (stringbase, 1, stringsize, abfd) != stringsize) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_malformed_archive); - goto error_return; - } - - for (i = 0; i < nsymz; i++) - { - carsyms->file_offset = bfd_getb64 (raw_armap + i * 8); - carsyms->name = stringbase; - stringbase += strlen (stringbase) + 1; - ++carsyms; - } - *stringbase = '\0'; - - ardata->symdef_count = nsymz; - ardata->first_file_filepos = arhdrpos + sizeof (struct ar_hdr) + parsed_size; - - bfd_has_map (abfd) = true; - bfd_release (abfd, raw_armap); - - return true; - - error_return: - if (raw_armap != NULL) - bfd_release (abfd, raw_armap); - if (ardata->symdefs != NULL) - bfd_release (abfd, ardata->symdefs); - return false; -} - -/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be - able to handle ordinary ELF armaps, but at least on Irix 6.2 the - linker crashes. */ - -static boolean -mips_elf64_write_armap (arch, elength, map, symbol_count, stridx) - bfd *arch; - unsigned int elength; - struct orl *map; - unsigned int symbol_count; - int stridx; -{ - unsigned int ranlibsize = (symbol_count * 8) + 8; - unsigned int stringsize = stridx; - unsigned int mapsize = stringsize + ranlibsize; - file_ptr archive_member_file_ptr; - bfd *current = arch->archive_head; - unsigned int count; - struct ar_hdr hdr; - unsigned int i; - int padding; - bfd_byte buf[8]; - - padding = BFD_ALIGN (mapsize, 8) - mapsize; - mapsize += padding; - - /* work out where the first object file will go in the archive */ - archive_member_file_ptr = (mapsize - + elength - + sizeof (struct ar_hdr) - + SARMAG); - - memset ((char *) (&hdr), 0, sizeof (struct ar_hdr)); - strcpy (hdr.ar_name, "/SYM64/"); - sprintf (hdr.ar_size, "%-10d", (int) mapsize); - sprintf (hdr.ar_date, "%ld", (long) time (NULL)); - /* This, at least, is what Intel coff sets the values to.: */ - sprintf ((hdr.ar_uid), "%d", 0); - sprintf ((hdr.ar_gid), "%d", 0); - sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0); - strncpy (hdr.ar_fmag, ARFMAG, 2); - - for (i = 0; i < sizeof (struct ar_hdr); i++) - if (((char *) (&hdr))[i] == '\0') - (((char *) (&hdr))[i]) = ' '; - - /* Write the ar header for this item and the number of symbols */ - - if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch) - != sizeof (struct ar_hdr)) - return false; - - bfd_putb64 (symbol_count, buf); - if (bfd_write (buf, 1, 8, arch) != 8) - return false; - - /* Two passes, first write the file offsets for each symbol - - remembering that each offset is on a two byte boundary. */ - - /* Write out the file offset for the file associated with each - symbol, and remember to keep the offsets padded out. */ - - current = arch->archive_head; - count = 0; - while (current != (bfd *) NULL && count < symbol_count) - { - /* For each symbol which is used defined in this object, write out - the object file's address in the archive */ - - while (((bfd *) (map[count]).pos) == current) - { - bfd_putb64 (archive_member_file_ptr, buf); - if (bfd_write (buf, 1, 8, arch) != 8) - return false; - count++; - } - /* Add size of this archive entry */ - archive_member_file_ptr += (arelt_size (current) - + sizeof (struct ar_hdr)); - /* remember about the even alignment */ - archive_member_file_ptr += archive_member_file_ptr % 2; - current = current->next; - } - - /* now write the strings themselves */ - for (count = 0; count < symbol_count; count++) - { - size_t len = strlen (*map[count].name) + 1; - - if (bfd_write (*map[count].name, 1, len, arch) != len) - return false; - } - - /* The spec says that this should be padded to an 8 byte boundary. - However, the Irix 6.2 tools do not appear to do this. */ - while (padding != 0) - { - if (bfd_write ("", 1, 1, arch) != 1) - return false; - --padding; - } - - return true; -} - -/* ECOFF swapping routines. These are used when dealing with the - .mdebug section, which is in the ECOFF debugging format. */ -static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap = -{ - /* Symbol table magic number. */ - magicSym2, - /* Alignment of debugging information. E.g., 4. */ - 8, - /* Sizes of external symbolic information. */ - sizeof (struct hdr_ext), - sizeof (struct dnr_ext), - sizeof (struct pdr_ext), - sizeof (struct sym_ext), - sizeof (struct opt_ext), - sizeof (struct fdr_ext), - sizeof (struct rfd_ext), - sizeof (struct ext_ext), - /* Functions to swap in external symbolic data. */ - ecoff_swap_hdr_in, - ecoff_swap_dnr_in, - ecoff_swap_pdr_in, - ecoff_swap_sym_in, - ecoff_swap_opt_in, - ecoff_swap_fdr_in, - ecoff_swap_rfd_in, - ecoff_swap_ext_in, - _bfd_ecoff_swap_tir_in, - _bfd_ecoff_swap_rndx_in, - /* Functions to swap out external symbolic data. */ - ecoff_swap_hdr_out, - ecoff_swap_dnr_out, - ecoff_swap_pdr_out, - ecoff_swap_sym_out, - ecoff_swap_opt_out, - ecoff_swap_fdr_out, - ecoff_swap_rfd_out, - ecoff_swap_ext_out, - _bfd_ecoff_swap_tir_out, - _bfd_ecoff_swap_rndx_out, - /* Function to read in symbolic data. */ - _bfd_mips_elf_read_ecoff_info -}; - -/* Relocations in the 64 bit MIPS ELF ABI are more complex than in - standard ELF. This structure is used to redirect the relocation - handling routines. */ - -const struct elf_size_info mips_elf64_size_info = -{ - sizeof (Elf64_External_Ehdr), - sizeof (Elf64_External_Phdr), - sizeof (Elf64_External_Shdr), - sizeof (Elf64_Mips_External_Rel), - sizeof (Elf64_Mips_External_Rela), - sizeof (Elf64_External_Sym), - sizeof (Elf64_External_Dyn), - sizeof (Elf_External_Note), - 4, /* hash-table entry size */ - 3, /* internal relocations per external relocations */ - 64, /* arch_size */ - 8, /* file_align */ - ELFCLASS64, - EV_CURRENT, - bfd_elf64_write_out_phdrs, - bfd_elf64_write_shdrs_and_ehdr, - mips_elf64_write_relocs, - bfd_elf64_swap_symbol_out, - mips_elf64_slurp_reloc_table, - bfd_elf64_slurp_symbol_table, - bfd_elf64_swap_dyn_in, - bfd_elf64_swap_dyn_out, - mips_elf64_be_swap_reloc_in, - mips_elf64_be_swap_reloc_out, - mips_elf64_be_swap_reloca_in, - mips_elf64_be_swap_reloca_out -}; - -#define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec -#define TARGET_LITTLE_NAME "elf64-littlemips" -#define TARGET_BIG_SYM bfd_elf64_bigmips_vec -#define TARGET_BIG_NAME "elf64-bigmips" -#define ELF_ARCH bfd_arch_mips -#define ELF_MACHINE_CODE EM_MIPS - -#define ELF_MAXPAGESIZE 0x1000 - -#define elf_backend_collect true -#define elf_backend_type_change_ok true -#define elf_backend_can_gc_sections true -#define elf_backend_size_info mips_elf64_size_info -#define elf_backend_object_p _bfd_mips_elf_object_p -#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr -#define elf_backend_fake_sections _bfd_mips_elf_fake_sections -#define elf_backend_section_from_bfd_section \ - _bfd_mips_elf_section_from_bfd_section -#define elf_backend_section_processing _bfd_mips_elf_section_processing -#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing -#define elf_backend_additional_program_headers \ - _bfd_mips_elf_additional_program_headers -#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map -#define elf_backend_final_write_processing \ - _bfd_mips_elf_final_write_processing -#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap -#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook -#define elf_backend_create_dynamic_sections \ - _bfd_mips_elf_create_dynamic_sections -#define elf_backend_check_relocs _bfd_mips_elf_check_relocs -#define elf_backend_adjust_dynamic_symbol \ - _bfd_mips_elf_adjust_dynamic_symbol -#define elf_backend_always_size_sections \ - _bfd_mips_elf_always_size_sections -#define elf_backend_size_dynamic_sections \ - _bfd_mips_elf_size_dynamic_sections -#define elf_backend_relocate_section _bfd_mips_elf_relocate_section -#define elf_backend_link_output_symbol_hook \ - _bfd_mips_elf_link_output_symbol_hook -#define elf_backend_finish_dynamic_symbol \ - _bfd_mips_elf_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections \ - _bfd_mips_elf_finish_dynamic_sections -#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook -#define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO) -#define elf_backend_plt_header_size 0 -#define elf_backend_may_use_rel_p 1 - -/* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit - MIPS-specific function only applies to IRIX5, which had no 64-bit - ABI. */ -#define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line -#define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents -#define bfd_elf64_bfd_link_hash_table_create \ - _bfd_mips_elf_link_hash_table_create -#define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link -#define bfd_elf64_bfd_copy_private_bfd_data \ - _bfd_mips_elf_copy_private_bfd_data -#define bfd_elf64_bfd_merge_private_bfd_data \ - _bfd_mips_elf_merge_private_bfd_data -#define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags -#define bfd_elf64_bfd_print_private_bfd_data \ - _bfd_mips_elf_print_private_bfd_data - -#define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound -#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup -#define bfd_elf64_archive_functions -#define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap -#define bfd_elf64_archive_slurp_extended_name_table \ - _bfd_archive_coff_slurp_extended_name_table -#define bfd_elf64_archive_construct_extended_name_table \ - _bfd_archive_coff_construct_extended_name_table -#define bfd_elf64_archive_truncate_arname \ - _bfd_archive_coff_truncate_arname -#define bfd_elf64_archive_write_armap mips_elf64_write_armap -#define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr -#define bfd_elf64_archive_openr_next_archived_file \ - _bfd_archive_coff_openr_next_archived_file -#define bfd_elf64_archive_get_elt_at_index \ - _bfd_archive_coff_get_elt_at_index -#define bfd_elf64_archive_generic_stat_arch_elt \ - _bfd_archive_coff_generic_stat_arch_elt -#define bfd_elf64_archive_update_armap_timestamp \ - _bfd_archive_coff_update_armap_timestamp - -#include "elf64-target.h" diff --git a/contrib/binutils/bfd/filemode.c b/contrib/binutils/bfd/filemode.c deleted file mode 100644 index 6f4596872ca8d..0000000000000 --- a/contrib/binutils/bfd/filemode.c +++ /dev/null @@ -1,194 +0,0 @@ -/* filemode.c -- make a string describing file modes - Copyright (C) 1985, 1990 Free Software Foundation, Inc. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "sysdep.h" -#include <sys/types.h> -#include <sys/stat.h> - -void mode_string (); -static char ftypelet (); -static void rwx (); -static void setst (); - -/* filemodestring - fill in string STR with an ls-style ASCII - representation of the st_mode field of file stats block STATP. - 10 characters are stored in STR; no terminating null is added. - The characters stored in STR are: - - 0 File type. 'd' for directory, 'c' for character - special, 'b' for block special, 'm' for multiplex, - 'l' for symbolic link, 's' for socket, 'p' for fifo, - '-' for any other file type - - 1 'r' if the owner may read, '-' otherwise. - - 2 'w' if the owner may write, '-' otherwise. - - 3 'x' if the owner may execute, 's' if the file is - set-user-id, '-' otherwise. - 'S' if the file is set-user-id, but the execute - bit isn't set. - - 4 'r' if group members may read, '-' otherwise. - - 5 'w' if group members may write, '-' otherwise. - - 6 'x' if group members may execute, 's' if the file is - set-group-id, '-' otherwise. - 'S' if it is set-group-id but not executable. - - 7 'r' if any user may read, '-' otherwise. - - 8 'w' if any user may write, '-' otherwise. - - 9 'x' if any user may execute, 't' if the file is "sticky" - (will be retained in swap space after execution), '-' - otherwise. - 'T' if the file is sticky but not executable. */ - -void -filemodestring (statp, str) - struct stat *statp; - char *str; -{ - mode_string (statp->st_mode, str); -} - -/* Like filemodestring, but only the relevant part of the `struct stat' - is given as an argument. */ - -void -mode_string (mode, str) - unsigned short mode; - char *str; -{ - str[0] = ftypelet (mode); - rwx ((mode & 0700) << 0, &str[1]); - rwx ((mode & 0070) << 3, &str[4]); - rwx ((mode & 0007) << 6, &str[7]); - setst (mode, str); -} - -/* Return a character indicating the type of file described by - file mode BITS: - 'd' for directories - 'b' for block special files - 'c' for character special files - 'm' for multiplexor files - 'l' for symbolic links - 's' for sockets - 'p' for fifos - '-' for any other file type. */ - -static char -ftypelet (bits) - unsigned short bits; -{ - switch (bits & S_IFMT) - { - default: - return '-'; - case S_IFDIR: - return 'd'; -#ifdef S_IFLNK - case S_IFLNK: - return 'l'; -#endif -#ifdef S_IFCHR - case S_IFCHR: - return 'c'; -#endif -#ifdef S_IFBLK - case S_IFBLK: - return 'b'; -#endif -#ifdef S_IFMPC - case S_IFMPC: - case S_IFMPB: - return 'm'; -#endif -#ifdef S_IFSOCK - case S_IFSOCK: - return 's'; -#endif -#ifdef S_IFIFO -#if S_IFIFO != S_IFSOCK - case S_IFIFO: - return 'p'; -#endif -#endif -#ifdef S_IFNWK /* HP-UX */ - case S_IFNWK: - return 'n'; -#endif - } -} - -/* Look at read, write, and execute bits in BITS and set - flags in CHARS accordingly. */ - -static void -rwx (bits, chars) - unsigned short bits; - char *chars; -{ - chars[0] = (bits & S_IREAD) ? 'r' : '-'; - chars[1] = (bits & S_IWRITE) ? 'w' : '-'; - chars[2] = (bits & S_IEXEC) ? 'x' : '-'; -} - -/* Set the 's' and 't' flags in file attributes string CHARS, - according to the file mode BITS. */ - -static void -setst (bits, chars) - unsigned short bits; - char *chars; -{ -#ifdef S_ISUID - if (bits & S_ISUID) - { - if (chars[3] != 'x') - /* Set-uid, but not executable by owner. */ - chars[3] = 'S'; - else - chars[3] = 's'; - } -#endif -#ifdef S_ISGID - if (bits & S_ISGID) - { - if (chars[6] != 'x') - /* Set-gid, but not executable by group. */ - chars[6] = 'S'; - else - chars[6] = 's'; - } -#endif -#ifdef S_ISVTX - if (bits & S_ISVTX) - { - if (chars[9] != 'x') - /* Sticky, but not executable by others. */ - chars[9] = 'T'; - else - chars[9] = 't'; - } -#endif -} - - diff --git a/contrib/binutils/bfd/libpei.h b/contrib/binutils/bfd/libpei.h deleted file mode 100644 index 5b9cc045cc979..0000000000000 --- a/contrib/binutils/bfd/libpei.h +++ /dev/null @@ -1,321 +0,0 @@ -/* Support for the generic parts of PE/PEI; common header information. - Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Written by Cygnus Solutions. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* -Most of this hacked by Steve Chamberlain, - sac@cygnus.com - -PE/PEI rearrangement (and code added): Donn Terry - Softway Systems, Inc. -*/ - -/* Hey look, some documentation [and in a place you expect to find it]! - - The main reference for the pei format is "Microsoft Portable Executable - and Common Object File Format Specification 4.1". Get it if you need to - do some serious hacking on this code. - - Another reference: - "Peering Inside the PE: A Tour of the Win32 Portable Executable - File Format", MSJ 1994, Volume 9. - - The *sole* difference between the pe format and the pei format is that the - latter has an MSDOS 2.0 .exe header on the front that prints the message - "This app must be run under Windows." (or some such). - (FIXME: Whether that statement is *really* true or not is unknown. - Are there more subtle differences between pe and pei formats? - For now assume there aren't. If you find one, then for God sakes - document it here!) - - The Microsoft docs use the word "image" instead of "executable" because - the former can also refer to a DLL (shared library). Confusion can arise - because the `i' in `pei' also refers to "image". The `pe' format can - also create images (i.e. executables), it's just that to run on a win32 - system you need to use the pei format. - - FIXME: Please add more docs here so the next poor fool that has to hack - on this code has a chance of getting something accomplished without - wasting too much time. -*/ - -#ifndef GET_FCN_LNNOPTR -#define GET_FCN_LNNOPTR(abfd, ext) \ - bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) -#endif - -#ifndef GET_FCN_ENDNDX -#define GET_FCN_ENDNDX(abfd, ext) \ - bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) -#endif - -#ifndef PUT_FCN_LNNOPTR -#define PUT_FCN_LNNOPTR(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) -#endif -#ifndef PUT_FCN_ENDNDX -#define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) -#endif -#ifndef GET_LNSZ_LNNO -#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) -#endif -#ifndef GET_LNSZ_SIZE -#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) -#endif -#ifndef PUT_LNSZ_LNNO -#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno) -#endif -#ifndef PUT_LNSZ_SIZE -#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size) -#endif -#ifndef GET_SCN_SCNLEN -#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) -#endif -#ifndef GET_SCN_NRELOC -#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc) -#endif -#ifndef GET_SCN_NLINNO -#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno) -#endif -#ifndef PUT_SCN_SCNLEN -#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) -#endif -#ifndef PUT_SCN_NRELOC -#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) -#endif -#ifndef PUT_SCN_NLINNO -#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) -#endif -#ifndef GET_LINENO_LNNO -#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); -#endif -#ifndef PUT_LINENO_LNNO -#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); -#endif - -/* The f_symptr field in the filehdr is sometimes 64 bits. */ -#ifndef GET_FILEHDR_SYMPTR -#define GET_FILEHDR_SYMPTR bfd_h_get_32 -#endif -#ifndef PUT_FILEHDR_SYMPTR -#define PUT_FILEHDR_SYMPTR bfd_h_put_32 -#endif - -/* Some fields in the aouthdr are sometimes 64 bits. */ -#ifndef GET_AOUTHDR_TSIZE -#define GET_AOUTHDR_TSIZE bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_TSIZE -#define PUT_AOUTHDR_TSIZE bfd_h_put_32 -#endif -#ifndef GET_AOUTHDR_DSIZE -#define GET_AOUTHDR_DSIZE bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_DSIZE -#define PUT_AOUTHDR_DSIZE bfd_h_put_32 -#endif -#ifndef GET_AOUTHDR_BSIZE -#define GET_AOUTHDR_BSIZE bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_BSIZE -#define PUT_AOUTHDR_BSIZE bfd_h_put_32 -#endif -#ifndef GET_AOUTHDR_ENTRY -#define GET_AOUTHDR_ENTRY bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_ENTRY -#define PUT_AOUTHDR_ENTRY bfd_h_put_32 -#endif -#ifndef GET_AOUTHDR_TEXT_START -#define GET_AOUTHDR_TEXT_START bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_TEXT_START -#define PUT_AOUTHDR_TEXT_START bfd_h_put_32 -#endif -#ifndef GET_AOUTHDR_DATA_START -#define GET_AOUTHDR_DATA_START bfd_h_get_32 -#endif -#ifndef PUT_AOUTHDR_DATA_START -#define PUT_AOUTHDR_DATA_START bfd_h_put_32 -#endif - -/* Some fields in the scnhdr are sometimes 64 bits. */ -#ifndef GET_SCNHDR_PADDR -#define GET_SCNHDR_PADDR bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_PADDR -#define PUT_SCNHDR_PADDR bfd_h_put_32 -#endif -#ifndef GET_SCNHDR_VADDR -#define GET_SCNHDR_VADDR bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_VADDR -#define PUT_SCNHDR_VADDR bfd_h_put_32 -#endif -#ifndef GET_SCNHDR_SIZE -#define GET_SCNHDR_SIZE bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_SIZE -#define PUT_SCNHDR_SIZE bfd_h_put_32 -#endif -#ifndef GET_SCNHDR_SCNPTR -#define GET_SCNHDR_SCNPTR bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_SCNPTR -#define PUT_SCNHDR_SCNPTR bfd_h_put_32 -#endif -#ifndef GET_SCNHDR_RELPTR -#define GET_SCNHDR_RELPTR bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_RELPTR -#define PUT_SCNHDR_RELPTR bfd_h_put_32 -#endif -#ifndef GET_SCNHDR_LNNOPTR -#define GET_SCNHDR_LNNOPTR bfd_h_get_32 -#endif -#ifndef PUT_SCNHDR_LNNOPTR -#define PUT_SCNHDR_LNNOPTR bfd_h_put_32 -#endif - -#ifdef COFF_WITH_pep - -#define GET_OPTHDR_IMAGE_BASE bfd_h_get_64 -#define PUT_OPTHDR_IMAGE_BASE bfd_h_put_64 -#define GET_OPTHDR_SIZE_OF_STACK_RESERVE bfd_h_get_64 -#define PUT_OPTHDR_SIZE_OF_STACK_RESERVE bfd_h_put_64 -#define GET_OPTHDR_SIZE_OF_STACK_COMMIT bfd_h_get_64 -#define PUT_OPTHDR_SIZE_OF_STACK_COMMIT bfd_h_put_64 -#define GET_OPTHDR_SIZE_OF_HEAP_RESERVE bfd_h_get_64 -#define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE bfd_h_put_64 -#define GET_OPTHDR_SIZE_OF_HEAP_COMMIT bfd_h_get_64 -#define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT bfd_h_put_64 -#define GET_PDATA_ENTRY bfd_get_64 - -#define _bfd_XX_bfd_copy_private_bfd_data_common _bfd_pep_bfd_copy_private_bfd_data_common -#define _bfd_XX_bfd_copy_private_section_data _bfd_pep_bfd_copy_private_section_data -#define _bfd_XX_get_symbol_info _bfd_pep_get_symbol_info -#define _bfd_XX_only_swap_filehdr_out _bfd_pep_only_swap_filehdr_out -#define _bfd_XX_print_private_bfd_data_common _bfd_pep_print_private_bfd_data_common -#define _bfd_XXi_final_link_postscript _bfd_pepi_final_link_postscript -#define _bfd_XXi_final_link_postscript _bfd_pepi_final_link_postscript -#define _bfd_XXi_only_swap_filehdr_out _bfd_pepi_only_swap_filehdr_out -#define _bfd_XXi_swap_aouthdr_in _bfd_pepi_swap_aouthdr_in -#define _bfd_XXi_swap_aouthdr_out _bfd_pepi_swap_aouthdr_out -#define _bfd_XXi_swap_aux_in _bfd_pepi_swap_aux_in -#define _bfd_XXi_swap_aux_out _bfd_pepi_swap_aux_out -#define _bfd_XXi_swap_lineno_in _bfd_pepi_swap_lineno_in -#define _bfd_XXi_swap_lineno_out _bfd_pepi_swap_lineno_out -#define _bfd_XXi_swap_scnhdr_out _bfd_pepi_swap_scnhdr_out -#define _bfd_XXi_swap_sym_in _bfd_pepi_swap_sym_in -#define _bfd_XXi_swap_sym_out _bfd_pepi_swap_sym_out - -#else /* !COFF_WITH_pep */ - -#define GET_OPTHDR_IMAGE_BASE bfd_h_get_32 -#define PUT_OPTHDR_IMAGE_BASE bfd_h_put_32 -#define GET_OPTHDR_SIZE_OF_STACK_RESERVE bfd_h_get_32 -#define PUT_OPTHDR_SIZE_OF_STACK_RESERVE bfd_h_put_32 -#define GET_OPTHDR_SIZE_OF_STACK_COMMIT bfd_h_get_32 -#define PUT_OPTHDR_SIZE_OF_STACK_COMMIT bfd_h_put_32 -#define GET_OPTHDR_SIZE_OF_HEAP_RESERVE bfd_h_get_32 -#define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE bfd_h_put_32 -#define GET_OPTHDR_SIZE_OF_HEAP_COMMIT bfd_h_get_32 -#define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT bfd_h_put_32 -#define GET_PDATA_ENTRY bfd_get_32 - -#define _bfd_XX_bfd_copy_private_bfd_data_common _bfd_pe_bfd_copy_private_bfd_data_common -#define _bfd_XX_bfd_copy_private_section_data _bfd_pe_bfd_copy_private_section_data -#define _bfd_XX_get_symbol_info _bfd_pe_get_symbol_info -#define _bfd_XX_only_swap_filehdr_out _bfd_pe_only_swap_filehdr_out -#define _bfd_XX_print_private_bfd_data_common _bfd_pe_print_private_bfd_data_common -#define _bfd_XXi_final_link_postscript _bfd_pei_final_link_postscript -#define _bfd_XXi_final_link_postscript _bfd_pei_final_link_postscript -#define _bfd_XXi_only_swap_filehdr_out _bfd_pei_only_swap_filehdr_out -#define _bfd_XXi_swap_aouthdr_in _bfd_pei_swap_aouthdr_in -#define _bfd_XXi_swap_aouthdr_out _bfd_pei_swap_aouthdr_out -#define _bfd_XXi_swap_aux_in _bfd_pei_swap_aux_in -#define _bfd_XXi_swap_aux_out _bfd_pei_swap_aux_out -#define _bfd_XXi_swap_lineno_in _bfd_pei_swap_lineno_in -#define _bfd_XXi_swap_lineno_out _bfd_pei_swap_lineno_out -#define _bfd_XXi_swap_scnhdr_out _bfd_pei_swap_scnhdr_out -#define _bfd_XXi_swap_sym_in _bfd_pei_swap_sym_in -#define _bfd_XXi_swap_sym_out _bfd_pei_swap_sym_out - -#endif /* !COFF_WITH_pep */ - -/* These functions are architecture dependent, and are in peicode.h: - coff_swap_reloc_in - int coff_swap_reloc_out - coff_swap_filehdr_in - coff_swap_scnhdr_in - pe_mkobject - pe_mkobject_hook */ - -/* The functions described below are common across all PE/PEI - implementations architecture types, and actually appear in - peigen.c. */ - -void _bfd_XXi_swap_sym_in PARAMS ((bfd*, PTR, PTR)); -#define coff_swap_sym_in _bfd_XXi_swap_sym_in - -unsigned int _bfd_XXi_swap_sym_out PARAMS ((bfd*, PTR, PTR)); -#define coff_swap_sym_out _bfd_XXi_swap_sym_out - -void _bfd_XXi_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); -#define coff_swap_aux_in _bfd_XXi_swap_aux_in - -unsigned int _bfd_XXi_swap_aux_out \ - PARAMS ((bfd *, PTR, int, int, int, int, PTR)); -#define coff_swap_aux_out _bfd_XXi_swap_aux_out - -void _bfd_XXi_swap_lineno_in PARAMS ((bfd*, PTR, PTR)); -#define coff_swap_lineno_in _bfd_XXi_swap_lineno_in - -unsigned int _bfd_XXi_swap_lineno_out PARAMS ((bfd*, PTR, PTR)); -#define coff_swap_lineno_out _bfd_XXi_swap_lineno_out - -void _bfd_XXi_swap_aouthdr_in PARAMS ((bfd*, PTR, PTR)); -#define coff_swap_aouthdr_in _bfd_XXi_swap_aouthdr_in - -unsigned int _bfd_XXi_swap_aouthdr_out PARAMS ((bfd *, PTR, PTR)); -#define coff_swap_aouthdr_out _bfd_XXi_swap_aouthdr_out - -unsigned int _bfd_XXi_swap_scnhdr_out PARAMS ((bfd *, PTR, PTR)); -#define coff_swap_scnhdr_out _bfd_XXi_swap_scnhdr_out - -boolean _bfd_XX_print_private_bfd_data_common PARAMS ((bfd *, PTR)); - -boolean _bfd_XX_bfd_copy_private_bfd_data_common PARAMS ((bfd *, bfd *)); - -void _bfd_XX_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *)); - -boolean _bfd_XXi_final_link_postscript - PARAMS ((bfd *, struct coff_final_link_info *)); - -#ifndef coff_final_link_postscript -#define coff_final_link_postscript _bfd_XXi_final_link_postscript -#endif -/* The following are needed only for ONE of pe or pei, but don't - otherwise vary; peicode.h fixes up ifdefs but we provide the - prototype. */ - -unsigned int _bfd_XX_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR)); -unsigned int _bfd_XXi_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR)); -boolean _bfd_XX_bfd_copy_private_section_data - PARAMS ((bfd *, asection *, bfd *, asection *)); diff --git a/contrib/binutils/bfd/mipsbsd.c b/contrib/binutils/bfd/mipsbsd.c deleted file mode 100644 index 7a680fb389493..0000000000000 --- a/contrib/binutils/bfd/mipsbsd.c +++ /dev/null @@ -1,474 +0,0 @@ -/* BFD backend for MIPS BSD (a.out) binaries. - Copyright (C) 1993, 94, 95, 97, 98, 1999 Free Software Foundation, Inc. - Written by Ralph Campbell. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define BYTES_IN_WORD 4 -/* #define ENTRY_CAN_BE_ZERO */ -#define N_HEADER_IN_TEXT(x) 1 -#define N_SHARED_LIB(x) 0 -#define N_TXTADDR(x) \ - (N_MAGIC(x) != ZMAGIC ? (x).a_entry : /* object file or NMAGIC */\ - TEXT_START_ADDR + EXEC_BYTES_SIZE /* no padding */\ - ) -#define N_DATADDR(x) (N_TXTADDR(x)+N_TXTSIZE(x)) -#define TEXT_START_ADDR 4096 -#define TARGET_PAGE_SIZE 4096 -#define SEGMENT_SIZE TARGET_PAGE_SIZE -#define DEFAULT_ARCH bfd_arch_mips -#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \ - || (mtype) == M_MIPS1 || (mtype) == M_MIPS2) -#define MY_symbol_leading_char '\0' - -#define MY(OP) CAT(mipsbsd_,OP) - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "libaout.h" - -#define SET_ARCH_MACH(ABFD, EXEC) \ - MY(set_arch_mach)(ABFD, N_MACHTYPE (EXEC)); \ - MY(choose_reloc_size)(ABFD); -static void MY(set_arch_mach) PARAMS ((bfd *abfd, int machtype)); -static void MY(choose_reloc_size) PARAMS ((bfd *abfd)); - -#define MY_write_object_contents MY(write_object_contents) -static boolean MY(write_object_contents) PARAMS ((bfd *abfd)); - -/* We can't use MY(x) here because it leads to a recursive call to CAT - when expanded inside JUMP_TABLE. */ -#define MY_bfd_reloc_type_lookup mipsbsd_reloc_howto_type_lookup -#define MY_canonicalize_reloc mipsbsd_canonicalize_reloc - -#define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols -#define MY_final_link_callback unused -#define MY_bfd_final_link _bfd_generic_final_link - -#define MY_backend_data &MY(backend_data) -#define MY_BFD_TARGET - -#include "aout-target.h" - -static void -MY(set_arch_mach) (abfd, machtype) - bfd *abfd; - int machtype; -{ - enum bfd_architecture arch; - long machine; - - /* Determine the architecture and machine type of the object file. */ - switch (machtype) { - - case M_MIPS1: - arch = bfd_arch_mips; - machine = 3000; - break; - - case M_MIPS2: - arch = bfd_arch_mips; - machine = 4000; - break; - - default: - arch = bfd_arch_obscure; - machine = 0; - break; - } - bfd_set_arch_mach(abfd, arch, machine); -} - -/* Determine the size of a relocation entry, based on the architecture */ -static void -MY(choose_reloc_size) (abfd) - bfd *abfd; -{ - switch (bfd_get_arch(abfd)) { - case bfd_arch_sparc: - case bfd_arch_a29k: - case bfd_arch_mips: - obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; - break; - default: - obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; - break; - } -} - -/* Write an object file in BSD a.out format. - Section contents have already been written. We write the - file header, symbols, and relocation. */ - -static boolean -MY(write_object_contents) (abfd) - bfd *abfd; -{ - struct external_exec exec_bytes; - struct internal_exec *execp = exec_hdr (abfd); - - /* Magic number, maestro, please! */ - switch (bfd_get_arch(abfd)) { - case bfd_arch_m68k: - switch (bfd_get_mach(abfd)) { - case bfd_mach_m68010: - N_SET_MACHTYPE(*execp, M_68010); - break; - default: - case bfd_mach_m68020: - N_SET_MACHTYPE(*execp, M_68020); - break; - } - break; - case bfd_arch_sparc: - N_SET_MACHTYPE(*execp, M_SPARC); - break; - case bfd_arch_i386: - N_SET_MACHTYPE(*execp, M_386); - break; - case bfd_arch_a29k: - N_SET_MACHTYPE(*execp, M_29K); - break; - case bfd_arch_mips: - switch (bfd_get_mach(abfd)) { - case 4000: - case 6000: - N_SET_MACHTYPE(*execp, M_MIPS2); - break; - default: - N_SET_MACHTYPE(*execp, M_MIPS1); - break; - } - break; - default: - N_SET_MACHTYPE(*execp, M_UNKNOWN); - } - - MY(choose_reloc_size)(abfd); - - WRITE_HEADERS(abfd, execp); - - return true; -} - -/* - * MIPS relocation types. - */ -#define MIPS_RELOC_32 0 -#define MIPS_RELOC_JMP 1 -#define MIPS_RELOC_WDISP16 2 -#define MIPS_RELOC_HI16 3 -#define MIPS_RELOC_HI16_S 4 -#define MIPS_RELOC_LO16 5 - -/* - * This is only called when performing a BFD_RELOC_MIPS_JMP relocation. - * The jump destination address is formed from the upper 4 bits of the - * "current" program counter concatenated with the jump instruction's - * 26 bit field and two trailing zeros. - * If the destination address is not in the same segment as the "current" - * program counter, then we need to signal an error. - */ -static bfd_reloc_status_type -mips_fix_jmp_addr (abfd,reloc_entry,symbol,data,input_section,output_bfd) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - struct symbol_cache_entry *symbol; - PTR data ATTRIBUTE_UNUSED; - asection *input_section; - bfd *output_bfd; -{ - bfd_vma relocation, pc; - - /* If this is a partial relocation, just continue. */ - if (output_bfd != (bfd *)NULL) - return bfd_reloc_continue; - - /* If this is an undefined symbol, return error */ - if (bfd_is_und_section (symbol->section) - && (symbol->flags & BSF_WEAK) == 0) - return bfd_reloc_undefined; - - /* - * Work out which section the relocation is targetted at and the - * initial relocation command value. - */ - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - pc = input_section->output_section->vma + input_section->output_offset + - reloc_entry->address + 4; - - if ((relocation & 0xF0000000) != (pc & 0xF0000000)) - return bfd_reloc_overflow; - - return bfd_reloc_continue; -} - -/* - * This is only called when performing a BFD_RELOC_HI16_S relocation. - * We need to see if bit 15 is set in the result. If it is, we add - * 0x10000 and continue normally. This will compensate for the sign extension - * when the low bits are added at run time. - */ -static bfd_reloc_status_type -mips_fix_hi16_s PARAMS ((bfd *, arelent *, asymbol *, PTR, - asection *, bfd *, char **)); - -static bfd_reloc_status_type -mips_fix_hi16_s (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc_entry; - asymbol *symbol; - PTR data ATTRIBUTE_UNUSED; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - bfd_vma relocation; - - /* If this is a partial relocation, just continue. */ - if (output_bfd != (bfd *)NULL) - return bfd_reloc_continue; - - /* If this is an undefined symbol, return error */ - if (bfd_is_und_section (symbol->section) - && (symbol->flags & BSF_WEAK) == 0) - return bfd_reloc_undefined; - - /* - * Work out which section the relocation is targetted at and the - * initial relocation command value. - */ - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - if (relocation & 0x8000) - reloc_entry->addend += 0x10000; - - return bfd_reloc_continue; -} - -static reloc_howto_type mips_howto_table_ext[] = { - {MIPS_RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, - "32", false, 0, 0xffffffff, false}, - {MIPS_RELOC_JMP, 2, 2, 26, false, 0, complain_overflow_dont, - mips_fix_jmp_addr, - "MIPS_JMP", false, 0, 0x03ffffff, false}, - {MIPS_RELOC_WDISP16, 2, 2, 16, true, 0, complain_overflow_signed, 0, - "WDISP16", false, 0, 0x0000ffff, false}, - {MIPS_RELOC_HI16, 16, 2, 16, false, 0, complain_overflow_bitfield, 0, - "HI16", false, 0, 0x0000ffff, false}, - {MIPS_RELOC_HI16_S, 16, 2, 16, false, 0, complain_overflow_bitfield, - mips_fix_hi16_s, - "HI16_S", false, 0, 0x0000ffff, false}, - {MIPS_RELOC_LO16, 0, 2, 16, false, 0, complain_overflow_dont, 0, - "LO16", false, 0, 0x0000ffff, false}, -}; - -static reloc_howto_type * -MY(reloc_howto_type_lookup) (abfd, code) - bfd *abfd; - bfd_reloc_code_real_type code; -{ - - if (bfd_get_arch (abfd) != bfd_arch_mips) - return 0; - - switch (code) - { - case BFD_RELOC_CTOR: - case BFD_RELOC_32: - return (&mips_howto_table_ext[MIPS_RELOC_32]); - case BFD_RELOC_MIPS_JMP: - return (&mips_howto_table_ext[MIPS_RELOC_JMP]); - case BFD_RELOC_16_PCREL_S2: - return (&mips_howto_table_ext[MIPS_RELOC_WDISP16]); - case BFD_RELOC_HI16: - return (&mips_howto_table_ext[MIPS_RELOC_HI16]); - case BFD_RELOC_HI16_S: - return (&mips_howto_table_ext[MIPS_RELOC_HI16_S]); - case BFD_RELOC_LO16: - return (&mips_howto_table_ext[MIPS_RELOC_LO16]); - default: - return 0; - } -} - -/* - * This is just like the standard aoutx.h version but we need to do our - * own mapping of external reloc type values to howto entries. - */ -long -MY(canonicalize_reloc)(abfd, section, relptr, symbols) - bfd *abfd; - sec_ptr section; - arelent **relptr; - asymbol **symbols; -{ - arelent *tblptr = section->relocation; - unsigned int count, c; - extern reloc_howto_type NAME(aout,ext_howto_table)[]; - - /* If we have already read in the relocation table, return the values. */ - if (section->flags & SEC_CONSTRUCTOR) { - arelent_chain *chain = section->constructor_chain; - - for (count = 0; count < section->reloc_count; count++) { - *relptr++ = &chain->relent; - chain = chain->next; - } - *relptr = 0; - return section->reloc_count; - } - if (tblptr && section->reloc_count) { - for (count = 0; count++ < section->reloc_count;) - *relptr++ = tblptr++; - *relptr = 0; - return section->reloc_count; - } - - if (!NAME(aout,slurp_reloc_table)(abfd, section, symbols)) - return -1; - tblptr = section->relocation; - - /* fix up howto entries */ - for (count = 0; count++ < section->reloc_count;) - { - c = tblptr->howto - NAME(aout,ext_howto_table); - tblptr->howto = &mips_howto_table_ext[c]; - - *relptr++ = tblptr++; - } - *relptr = 0; - return section->reloc_count; -} - -static CONST struct aout_backend_data MY(backend_data) = { - 0, /* zmagic contiguous */ - 1, /* text incl header */ - 0, /* entry is text address */ - 0, /* exec_hdr_flags */ - TARGET_PAGE_SIZE, /* text vma */ - MY_set_sizes, - 0, /* text size includes exec header */ - 0, /* add_dynamic_symbols */ - 0, /* add_one_symbol */ - 0, /* link_dynamic_object */ - 0, /* write_dynamic_symbol */ - 0, /* check_dynamic_reloc */ - 0 /* finish_dynamic_link */ -}; - -extern const bfd_target aout_mips_big_vec; - -const bfd_target aout_mips_little_vec = -{ - "a.out-mips-little", /* name */ - bfd_target_aout_flavour, - BFD_ENDIAN_LITTLE, /* target byte order (little) */ - BFD_ENDIAN_LITTLE, /* target headers byte order (little) */ - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - MY_symbol_leading_char, - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ - bfd_generic_archive_p, MY_core_file_p}, - {bfd_false, MY_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, MY_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (MY), - BFD_JUMP_TABLE_COPY (MY), - BFD_JUMP_TABLE_CORE (MY), - BFD_JUMP_TABLE_ARCHIVE (MY), - BFD_JUMP_TABLE_SYMBOLS (MY), - BFD_JUMP_TABLE_RELOCS (MY), - BFD_JUMP_TABLE_WRITE (MY), - BFD_JUMP_TABLE_LINK (MY), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - & aout_mips_big_vec, - - (PTR) MY_backend_data -}; - -const bfd_target aout_mips_big_vec = -{ - "a.out-mips-big", /* name */ - bfd_target_aout_flavour, - BFD_ENDIAN_BIG, /* target byte order (big) */ - BFD_ENDIAN_BIG, /* target headers byte order (big) */ - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - MY_symbol_leading_char, - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - {_bfd_dummy_target, MY_object_p, /* bfd_check_format */ - bfd_generic_archive_p, MY_core_file_p}, - {bfd_false, MY_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, MY_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (MY), - BFD_JUMP_TABLE_COPY (MY), - BFD_JUMP_TABLE_CORE (MY), - BFD_JUMP_TABLE_ARCHIVE (MY), - BFD_JUMP_TABLE_SYMBOLS (MY), - BFD_JUMP_TABLE_RELOCS (MY), - BFD_JUMP_TABLE_WRITE (MY), - BFD_JUMP_TABLE_LINK (MY), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - & aout_mips_little_vec, - - (PTR) MY_backend_data -}; diff --git a/contrib/binutils/bfd/pe-mips.c b/contrib/binutils/bfd/pe-mips.c deleted file mode 100644 index 9b89369b37b60..0000000000000 --- a/contrib/binutils/bfd/pe-mips.c +++ /dev/null @@ -1,998 +0,0 @@ -/* BFD back-end for MIPS PE COFF files. - Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. - Modified from coff-i386.c by DJ Delorie, dj@cygnus.com - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define COFF_WITH_PE -#define COFF_LONG_SECTION_NAMES -#define PCRELOFFSET true - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" - -#include "coff/mipspe.h" - -#include "coff/internal.h" - -#include "coff/pe.h" - -#include "libcoff.h" - -static bfd_reloc_status_type coff_mips_reloc - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); -static reloc_howto_type *coff_mips_rtype_to_howto - PARAMS ((bfd *, asection *, struct internal_reloc *, - struct coff_link_hash_entry *, struct internal_syment *, - - bfd_vma *)); -#if 0 -static void mips_ecoff_swap_reloc_in PARAMS ((bfd *, PTR, - struct internal_reloc *)); -static void mips_ecoff_swap_reloc_out PARAMS ((bfd *, - const struct internal_reloc *, - PTR)); -static void mips_adjust_reloc_in PARAMS ((bfd *, - const struct internal_reloc *, - arelent *)); -static void mips_adjust_reloc_out PARAMS ((bfd *, const arelent *, - struct internal_reloc *)); -#endif -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) -/* The page size is a guess based on ELF. */ - -#define COFF_PAGE_SIZE 0x1000 - -/* For some reason when using mips COFF the value stored in the .text - section for a reference to a common symbol is the value itself plus - any desired offset. Ian Taylor, Cygnus Support. */ - -/* If we are producing relocateable output, we need to do some - adjustments to the object file that are not done by the - bfd_perform_relocation function. This function is called by every - reloc type to make any required adjustments. */ - -static bfd_reloc_status_type -coff_mips_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, - error_message) - bfd *abfd; - arelent *reloc_entry; - asymbol *symbol; - PTR data; - asection *input_section ATTRIBUTE_UNUSED; - bfd *output_bfd; - char **error_message ATTRIBUTE_UNUSED; -{ - symvalue diff; - - if (output_bfd == (bfd *) NULL) - return bfd_reloc_continue; - - if (bfd_is_com_section (symbol->section)) - { -#ifndef COFF_WITH_PE - /* We are relocating a common symbol. The current value in the - object file is ORIG + OFFSET, where ORIG is the value of the - common symbol as seen by the object file when it was compiled - (this may be zero if the symbol was undefined) and OFFSET is - the offset into the common symbol (normally zero, but may be - non-zero when referring to a field in a common structure). - ORIG is the negative of reloc_entry->addend, which is set by - the CALC_ADDEND macro below. We want to replace the value in - the object file with NEW + OFFSET, where NEW is the value of - the common symbol which we are going to put in the final - object file. NEW is symbol->value. */ - diff = symbol->value + reloc_entry->addend; -#else - /* In PE mode, we do not offset the common symbol. */ - diff = reloc_entry->addend; -#endif - } - else - { - /* For some reason bfd_perform_relocation always effectively - ignores the addend for a COFF target when producing - relocateable output. This seems to be always wrong for 386 - COFF, so we handle the addend here instead. */ - diff = reloc_entry->addend; - } - -#ifdef COFF_WITH_PE -#if 0 - /* dj - handle it like any other reloc? */ - /* FIXME: How should this case be handled? */ - if (reloc_entry->howto->type == MIPS_R_RVA && diff != 0) - abort (); -#endif -#endif - -#define DOIT(x) \ - x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + (diff >> howto->rightshift)) & howto->dst_mask)) - - if (diff != 0) - { - reloc_howto_type *howto = reloc_entry->howto; - unsigned char *addr = (unsigned char *) data + reloc_entry->address; - - switch (howto->size) - { - case 0: - { - char x = bfd_get_8 (abfd, addr); - DOIT (x); - bfd_put_8 (abfd, x, addr); - } - break; - - case 1: - { - short x = bfd_get_16 (abfd, addr); - DOIT (x); - bfd_put_16 (abfd, x, addr); - } - break; - - case 2: - { - long x = bfd_get_32 (abfd, addr); - DOIT (x); - bfd_put_32 (abfd, x, addr); - } - break; - - default: - abort (); - } - } - - /* Now let bfd_perform_relocation finish everything up. */ - return bfd_reloc_continue; -} - -#ifdef COFF_WITH_PE -/* Return true if this relocation should - appear in the output .reloc section. */ - -static boolean in_reloc_p(abfd, howto) - bfd * abfd ATTRIBUTE_UNUSED; - reloc_howto_type *howto; -{ - return ! howto->pc_relative && howto->type != MIPS_R_RVA; -} -#endif - -#ifndef PCRELOFFSET -#define PCRELOFFSET false -#endif - -static reloc_howto_type howto_table[] = -{ - /* Reloc type 0 is ignored. The reloc reading code ensures that - this is a reference to the .abs section, which will cause - bfd_perform_relocation to do nothing. */ - HOWTO (MIPS_R_ABSOLUTE, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 8, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - 0, /* special_function */ - "IGNORE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 16 bit reference to a symbol, normally from a data section. */ - HOWTO (MIPS_R_REFHALF, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "REFHALF", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 32 bit reference to a symbol, normally from a data section. */ - HOWTO (MIPS_R_REFWORD, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "REFWORD", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 26 bit absolute jump address. */ - HOWTO (MIPS_R_JMPADDR, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ - coff_mips_reloc, /* special_function */ - "JMPADDR", /* name */ - true, /* partial_inplace */ - 0x3ffffff, /* src_mask */ - 0x3ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The high 16 bits of a symbol value. Handled by the function - mips_refhi_reloc. */ - HOWTO (MIPS_R_REFHI, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "REFHI", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* The low 16 bits of a symbol value. */ - HOWTO (MIPS_R_REFLO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "REFLO", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A reference to an offset from the gp register. Handled by the - function mips_gprel_reloc. */ - HOWTO (MIPS_R_GPREL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "GPREL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A reference to a literal using an offset from the gp register. - Handled by the function mips_gprel_reloc. */ - HOWTO (MIPS_R_LITERAL, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "LITERAL", /* name */ - true, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - false), /* pcrel_offset */ - - EMPTY_HOWTO (8), - EMPTY_HOWTO (9), - EMPTY_HOWTO (10), - EMPTY_HOWTO (11), - EMPTY_HOWTO (12), - EMPTY_HOWTO (13), - EMPTY_HOWTO (14), - EMPTY_HOWTO (15), - EMPTY_HOWTO (16), - EMPTY_HOWTO (17), - EMPTY_HOWTO (18), - EMPTY_HOWTO (19), - EMPTY_HOWTO (20), - EMPTY_HOWTO (21), - EMPTY_HOWTO (22), - EMPTY_HOWTO (23), - EMPTY_HOWTO (24), - EMPTY_HOWTO (25), - EMPTY_HOWTO (26), - EMPTY_HOWTO (27), - EMPTY_HOWTO (28), - EMPTY_HOWTO (29), - EMPTY_HOWTO (30), - EMPTY_HOWTO (31), - EMPTY_HOWTO (32), - EMPTY_HOWTO (33), - HOWTO (MIPS_R_RVA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "rva32", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - EMPTY_HOWTO (35), - EMPTY_HOWTO (36), - HOWTO (MIPS_R_PAIR, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - coff_mips_reloc, /* special_function */ - "PAIR", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ -}; - -/* Turn a howto into a reloc nunmber */ - -#define SELECT_RELOC(x,howto) { x.r_type = howto->type; } -#define BADMAG(x) MIPSBADMAG(x) -#define MIPS 1 /* Customize coffcode.h */ - -#define RTYPE2HOWTO(cache_ptr, dst) \ - (cache_ptr)->howto = howto_table + (dst)->r_type; - -/* Compute the addend of a reloc. If the reloc is to a common symbol, - the object file contains the value of the common symbol. By the - time this is called, the linker may be using a different symbol - from a different object file with a different value. Therefore, we - hack wildly to locate the original symbol from this file so that we - can make the correct adjustment. This macro sets coffsym to the - symbol from the original file, and uses it to set the addend value - correctly. If this is not a common symbol, the usual addend - calculation is done, except that an additional tweak is needed for - PC relative relocs. - FIXME: This macro refers to symbols and asect; these are from the - calling function, not the macro arguments. */ - -#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ - { \ - coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ - if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ - coffsym = (obj_symbols (abfd) \ - + (cache_ptr->sym_ptr_ptr - symbols)); \ - else if (ptr) \ - coffsym = coff_symbol_from (abfd, ptr); \ - if (coffsym != (coff_symbol_type *) NULL \ - && coffsym->native->u.syment.n_scnum == 0) \ - cache_ptr->addend = - coffsym->native->u.syment.n_value; \ - else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ - && ptr->section != (asection *) NULL) \ - cache_ptr->addend = - (ptr->section->vma + ptr->value); \ - else \ - cache_ptr->addend = 0; \ - if (ptr && howto_table[reloc.r_type].pc_relative) \ - cache_ptr->addend += asect->vma; \ - } - - -/* Convert an rtype to howto for the COFF backend linker. */ - -static reloc_howto_type * -coff_mips_rtype_to_howto (abfd, sec, rel, h, sym, addendp) - bfd *abfd ATTRIBUTE_UNUSED; - asection *sec; - struct internal_reloc *rel; - struct coff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma *addendp; -{ - - reloc_howto_type *howto; - - howto = howto_table + rel->r_type; - -#ifdef COFF_WITH_PE - *addendp = 0; -#endif - - if (howto->pc_relative) - *addendp += sec->vma; - - if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) - { - /* This is a common symbol. The section contents include the - size (sym->n_value) as an addend. The relocate_section - function will be adding in the final value of the symbol. We - need to subtract out the current size in order to get the - correct result. */ - - BFD_ASSERT (h != NULL); - -#ifndef COFF_WITH_PE - /* I think we *do* want to bypass this. If we don't, I have - seen some data parameters get the wrong relocation address. - If I link two versions with and without this section bypassed - and then do a binary comparison, the addresses which are - different can be looked up in the map. The case in which - this section has been bypassed has addresses which correspond - to values I can find in the map. */ - *addendp -= sym->n_value; -#endif - } - -#ifndef COFF_WITH_PE - /* If the output symbol is common (in which case this must be a - relocateable link), we need to add in the final size of the - common symbol. */ - if (h != NULL && h->root.type == bfd_link_hash_common) - *addendp += h->root.u.c.size; -#endif - -#ifdef COFF_WITH_PE - if (howto->pc_relative) - { - *addendp -= 4; - - /* If the symbol is defined, then the generic code is going to - add back the symbol value in order to cancel out an - adjustment it made to the addend. However, we set the addend - to 0 at the start of this function. We need to adjust here, - to avoid the adjustment the generic code will make. FIXME: - This is getting a bit hackish. */ - if (sym != NULL && sym->n_scnum != 0) - *addendp -= sym->n_value; - } - - if (rel->r_type == MIPS_R_RVA) - { - *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; - } -#endif - - return howto; -} - -#define coff_rtype_to_howto coff_mips_rtype_to_howto - - -#define coff_bfd_reloc_type_lookup coff_mips_reloc_type_lookup - - - -/* Get the howto structure for a generic reloc type. */ - -static reloc_howto_type * -coff_mips_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - int mips_type; - - switch (code) - { - case BFD_RELOC_16: - mips_type = MIPS_R_REFHALF; - break; - case BFD_RELOC_32: - case BFD_RELOC_CTOR: - mips_type = MIPS_R_REFWORD; - break; - case BFD_RELOC_MIPS_JMP: - mips_type = MIPS_R_JMPADDR; - break; - case BFD_RELOC_HI16_S: - mips_type = MIPS_R_REFHI; - break; - case BFD_RELOC_LO16: - mips_type = MIPS_R_REFLO; - break; - case BFD_RELOC_MIPS_GPREL: - mips_type = MIPS_R_GPREL; - break; - case BFD_RELOC_MIPS_LITERAL: - mips_type = MIPS_R_LITERAL; - break; -/* FIXME? - case BFD_RELOC_16_PCREL_S2: - mips_type = MIPS_R_PCREL16; - break; - case BFD_RELOC_PCREL_HI16_S: - mips_type = MIPS_R_RELHI; - break; - case BFD_RELOC_PCREL_LO16: - mips_type = MIPS_R_RELLO; - break; - case BFD_RELOC_GPREL32: - mips_type = MIPS_R_SWITCH; - break; -*/ - case BFD_RELOC_RVA: - mips_type = MIPS_R_RVA; - break; - default: - return (reloc_howto_type *) NULL; - } - - return &howto_table[mips_type]; -} - -static void -mips_swap_reloc_in (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - static struct internal_reloc pair_prev; - RELOC *reloc_src = (RELOC *) src; - struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; - - reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); - reloc_dst->r_symndx = - bfd_h_get_signed_32(abfd, (bfd_byte *) reloc_src->r_symndx); - reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); - reloc_dst->r_size = 0; - reloc_dst->r_extern = 0; - reloc_dst->r_offset = 0; - - switch (reloc_dst->r_type) - { - case MIPS_R_REFHI: - pair_prev = *reloc_dst; - break; - case MIPS_R_PAIR: - reloc_dst->r_offset = reloc_dst->r_symndx; - if (reloc_dst->r_offset & 0x8000) - reloc_dst->r_offset -= 0x10000; - /*printf("dj: pair offset is %08x\n", reloc_dst->r_offset);*/ - reloc_dst->r_symndx = pair_prev.r_symndx; - break; - } -} - -static unsigned int -mips_swap_reloc_out (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - static int prev_offset = 1; - static bfd_vma prev_addr = 0; - struct internal_reloc *reloc_src = (struct internal_reloc *)src; - struct external_reloc *reloc_dst = (struct external_reloc *)dst; - - switch (reloc_src->r_type) - { - case MIPS_R_REFHI: - prev_addr = reloc_src->r_vaddr; - prev_offset = reloc_src->r_offset; - break; - case MIPS_R_REFLO: - if (reloc_src->r_vaddr == prev_addr) - { - /* FIXME: only slightly hackish. If we see a REFLO pointing to - the same address as a REFHI, we assume this is the matching - PAIR reloc and output it accordingly. The symndx is really - the low 16 bits of the addend */ - bfd_h_put_32 (abfd, reloc_src->r_vaddr, - (bfd_byte *) reloc_dst->r_vaddr); - bfd_h_put_32 (abfd, reloc_src->r_symndx, - (bfd_byte *) reloc_dst->r_symndx); - - bfd_h_put_16(abfd, MIPS_R_PAIR, (bfd_byte *) - reloc_dst->r_type); - return RELSZ; - } - break; - } - - bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); - bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); - - bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) - reloc_dst->r_type); - return RELSZ; -} - -#define coff_swap_reloc_in mips_swap_reloc_in -#define coff_swap_reloc_out mips_swap_reloc_out -#define NO_COFF_RELOCS - -static boolean -coff_pe_mips_relocate_section (output_bfd, info, input_bfd, - input_section, contents, relocs, syms, - sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - struct internal_reloc *relocs; - struct internal_syment *syms; - asection **sections; -{ - bfd_vma gp; - boolean gp_undefined; - size_t adjust; - struct internal_reloc *rel; - struct internal_reloc *rel_end; - unsigned int i; - boolean got_lo; - - if (info->relocateable) - { - (*_bfd_error_handler)(_("\ -%s: `ld -r' not supported with PE MIPS objects\n"), - bfd_get_filename (input_bfd)); - bfd_set_error (bfd_error_bad_value); - return false; - } - - BFD_ASSERT (input_bfd->xvec->byteorder - == output_bfd->xvec->byteorder); - -#if 0 - printf("dj: relocate %s(%s) %08x\n", - input_bfd->filename, input_section->name, - input_section->output_section->vma + input_section->output_offset); -#endif - - gp = _bfd_get_gp_value (output_bfd); - if (gp == 0) - gp_undefined = true; - else - gp_undefined = false; - - got_lo = false; - - adjust = 0; - - rel = relocs; - rel_end = rel + input_section->reloc_count; - for (i = 0; rel < rel_end; rel++, i++) - { - long symndx; - struct coff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma addend = 0; - bfd_vma val, tmp, targ, src, low; - reloc_howto_type *howto; - unsigned char *mem = contents + rel->r_vaddr; - - symndx = rel->r_symndx; - - if (symndx == -1) - { - h = NULL; - sym = NULL; - } - else - { - h = obj_coff_sym_hashes (input_bfd)[symndx]; - sym = syms + symndx; - } - - /* COFF treats common symbols in one of two ways. Either the - size of the symbol is included in the section contents, or it - is not. We assume that the size is not included, and force - the rtype_to_howto function to adjust the addend as needed. */ - - if (sym != NULL && sym->n_scnum != 0) - addend = - sym->n_value; - else - addend = 0; - - - howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, - sym, &addend); - if (howto == NULL) - return false; - - /* If we are doing a relocateable link, then we can just ignore - a PC relative reloc that is pcrel_offset. It will already - have the correct value. If this is not a relocateable link, - then we should ignore the symbol value. */ - if (howto->pc_relative && howto->pcrel_offset) - { - if (info->relocateable) - continue; - if (sym != NULL && sym->n_scnum != 0) - addend += sym->n_value; - } - - val = 0; - - if (h == NULL) - { - asection *sec; - - if (symndx == -1) - { - sec = bfd_abs_section_ptr; - val = 0; - } - else - { - sec = sections[symndx]; - val = (sec->output_section->vma - + sec->output_offset - + sym->n_value); - if (! obj_pe (input_bfd)) - val -= sec->vma; - } - } - else - { - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *sec; - - sec = h->root.u.def.section; - val = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } - - else if (! info->relocateable) - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, input_section, - rel->r_vaddr - input_section->vma, true))) - return false; - } - } - - src = rel->r_vaddr + input_section->output_section->vma - + input_section->output_offset; -#if 0 - printf("dj: reloc %02x %-8s a=%08x/%08x(%08x) v=%08x+%08x %s\n", - rel->r_type, howto_table[rel->r_type].name, - src, rel->r_vaddr, *(unsigned long *)mem, val, rel->r_offset, - h?h->root.root.string:"(none)"); -#endif - - /* OK, at this point the following variables are set up: - src = VMA of the memory we're fixing up - mem = pointer to memory we're fixing up - val = VMA of what we need to refer to - */ - -#define UI(x) (*_bfd_error_handler)(_("%s: unimplemented %s\n"), \ - bfd_get_filename (input_bfd), x); \ - bfd_set_error (bfd_error_bad_value); - - switch (rel->r_type) - { - case MIPS_R_ABSOLUTE: - /* ignore these */ - break; - - case MIPS_R_REFHALF: - UI("refhalf"); - break; - - case MIPS_R_REFWORD: - tmp = bfd_get_32(input_bfd, mem); - /* printf("refword: src=%08x targ=%08x+%08x\n", src, tmp, val); */ - tmp += val; - bfd_put_32(input_bfd, tmp, mem); - break; - - case MIPS_R_JMPADDR: - tmp = bfd_get_32(input_bfd, mem); - targ = val + (tmp&0x03ffffff)*4; - if ((src & 0xf0000000) != (targ & 0xf0000000)) - { - (*_bfd_error_handler)(_("%s: jump too far away\n"), - bfd_get_filename (input_bfd)); - bfd_set_error (bfd_error_bad_value); - return false; - } - tmp &= 0xfc000000; - tmp |= (targ/4) & 0x3ffffff; - bfd_put_32(input_bfd, tmp, mem); - break; - - case MIPS_R_REFHI: - tmp = bfd_get_32(input_bfd, mem); - switch (rel[1].r_type) - { - case MIPS_R_PAIR: - /* MS PE object */ - targ = val + rel[1].r_offset + ((tmp & 0xffff) << 16); - break; - case MIPS_R_REFLO: - /* GNU COFF object */ - low = bfd_get_32(input_bfd, contents + rel[1].r_vaddr); - low &= 0xffff; - if (low & 0x8000) - low -= 0x10000; - targ = val + low + ((tmp & 0xffff) << 16); - break; - default: - (*_bfd_error_handler)(_("%s: bad pair/reflo after refhi\n"), - bfd_get_filename (input_bfd)); - bfd_set_error (bfd_error_bad_value); - return false; - } - tmp &= 0xffff0000; - tmp |= (targ >> 16) & 0xffff; - bfd_put_32(input_bfd, tmp, mem); - break; - - case MIPS_R_REFLO: - tmp = bfd_get_32(input_bfd, mem); - targ = val + (tmp & 0xffff); - /* printf("refword: src=%08x targ=%08x\n", src, targ); */ - tmp &= 0xffff0000; - tmp |= targ & 0xffff; - bfd_put_32(input_bfd, tmp, mem); - break; - - case MIPS_R_GPREL: - case MIPS_R_LITERAL: - UI("gprel"); - break; - - case MIPS_R_SECTION: - UI("section"); - break; - - case MIPS_R_SECREL: - UI("secrel"); - break; - - case MIPS_R_SECRELLO: - UI("secrello"); - break; - - case MIPS_R_SECRELHI: - UI("secrelhi"); - break; - - case MIPS_R_RVA: - tmp = bfd_get_32 (input_bfd, mem); - /* printf("rva: src=%08x targ=%08x+%08x\n", src, tmp, val); */ - tmp += val - - pe_data (input_section->output_section->owner)->pe_opthdr.ImageBase; - bfd_put_32 (input_bfd, tmp, mem); - break; - - case MIPS_R_PAIR: - /* ignore these */ - break; - } - } - - return true; -} - -#define coff_relocate_section coff_pe_mips_relocate_section - -#ifdef TARGET_UNDERSCORE - -/* If mips gcc uses underscores for symbol names, then it does not use - a leading dot for local labels, so if TARGET_UNDERSCORE is defined - we treat all symbols starting with L as local. */ - -static boolean coff_mips_is_local_label_name PARAMS ((bfd *, const char *)); - -static boolean -coff_mips_is_local_label_name (abfd, name) - bfd *abfd; - const char *name; -{ - if (name[0] == 'L') - return true; - - return _bfd_coff_is_local_label_name (abfd, name); -} - -#define coff_bfd_is_local_label_name coff_mips_is_local_label_name - -#endif /* TARGET_UNDERSCORE */ - -#define COFF_NO_HACK_SCNHDR_SIZE - -#include "coffcode.h" - -const bfd_target -#ifdef TARGET_SYM - TARGET_SYM = -#else - mipslpe_vec = -#endif -{ -#ifdef TARGET_NAME - TARGET_NAME, -#else - "pe-mips", /* name */ -#endif - bfd_target_coff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - -#ifndef COFF_WITH_PE - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ - | SEC_CODE | SEC_DATA), -#else - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ - | SEC_CODE | SEC_DATA - | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), -#endif - -#ifdef TARGET_UNDERSCORE - TARGET_UNDERSCORE, /* leading underscore */ -#else - 0, /* leading underscore */ -#endif - '/', /* ar_pad_char */ - 15, /* ar_max_namelen */ - - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ - bfd_getl64, bfd_getl_signed_64, bfd_putl64, - bfd_getl32, bfd_getl_signed_32, bfd_putl32, - bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ - -/* Note that we allow an object file to be treated as a core file as well. */ - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - bfd_generic_archive_p, coff_object_p}, - {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ - bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (coff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - COFF_SWAP_TABLE -}; diff --git a/contrib/binutils/bfd/peicode.h b/contrib/binutils/bfd/peicode.h deleted file mode 100644 index 20fe01cba65ac..0000000000000 --- a/contrib/binutils/bfd/peicode.h +++ /dev/null @@ -1,1324 +0,0 @@ -/* Support for the generic parts of PE/PEI, for BFD. - Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. - Written by Cygnus Solutions. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* -Most of this hacked by Steve Chamberlain, - sac@cygnus.com - -PE/PEI rearrangement (and code added): Donn Terry - Softway Systems, Inc. -*/ - -/* Hey look, some documentation [and in a place you expect to find it]! - - The main reference for the pei format is "Microsoft Portable Executable - and Common Object File Format Specification 4.1". Get it if you need to - do some serious hacking on this code. - - Another reference: - "Peering Inside the PE: A Tour of the Win32 Portable Executable - File Format", MSJ 1994, Volume 9. - - The *sole* difference between the pe format and the pei format is that the - latter has an MSDOS 2.0 .exe header on the front that prints the message - "This app must be run under Windows." (or some such). - (FIXME: Whether that statement is *really* true or not is unknown. - Are there more subtle differences between pe and pei formats? - For now assume there aren't. If you find one, then for God sakes - document it here!) - - The Microsoft docs use the word "image" instead of "executable" because - the former can also refer to a DLL (shared library). Confusion can arise - because the `i' in `pei' also refers to "image". The `pe' format can - also create images (i.e. executables), it's just that to run on a win32 - system you need to use the pei format. - - FIXME: Please add more docs here so the next poor fool that has to hack - on this code has a chance of getting something accomplished without - wasting too much time. -*/ - -#include "libpei.h" - -static boolean (*pe_saved_coff_bfd_print_private_bfd_data) - PARAMS ((bfd *, PTR)) = -#ifndef coff_bfd_print_private_bfd_data - NULL; -#else - coff_bfd_print_private_bfd_data; -#undef coff_bfd_print_private_bfd_data -#endif - -static boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR)); -#define coff_bfd_print_private_bfd_data pe_print_private_bfd_data - -static boolean (*pe_saved_coff_bfd_copy_private_bfd_data) - PARAMS ((bfd *, bfd *)) = -#ifndef coff_bfd_copy_private_bfd_data - NULL; -#else - coff_bfd_copy_private_bfd_data; -#undef coff_bfd_copy_private_bfd_data -#endif - -static boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); -#define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data - -#define coff_mkobject pe_mkobject -#define coff_mkobject_hook pe_mkobject_hook - -#ifndef NO_COFF_RELOCS -static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR)); -static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR)); -#endif -static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR)); -static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR)); -static boolean pe_mkobject PARAMS ((bfd *)); -static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR)); - -#ifdef COFF_IMAGE_WITH_PE -/* This structure contains static variables used by the ILF code. */ -typedef asection * asection_ptr; - -typedef struct -{ - bfd * abfd; - bfd_byte * data; - struct bfd_in_memory * bim; - unsigned short magic; - - arelent * reltab; - unsigned int relcount; - - coff_symbol_type * sym_cache; - coff_symbol_type * sym_ptr; - unsigned int sym_index; - - unsigned int * sym_table; - unsigned int * table_ptr; - - combined_entry_type * native_syms; - combined_entry_type * native_ptr; - - coff_symbol_type ** sym_ptr_table; - coff_symbol_type ** sym_ptr_ptr; - - unsigned int sec_index; - - char * string_table; - char * string_ptr; - char * end_string_ptr; - - SYMENT * esym_table; - SYMENT * esym_ptr; - - struct internal_reloc * int_reltab; -} -pe_ILF_vars; - -static asection_ptr pe_ILF_make_a_section PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword)); -static void pe_ILF_make_a_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr)); -static void pe_ILF_make_a_symbol PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword)); -static void pe_ILF_save_relocs PARAMS ((pe_ILF_vars *, asection_ptr)); -static void pe_ILF_make_a_symbol_reloc PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, struct symbol_cache_entry **, unsigned int)); -static boolean pe_ILF_build_a_bfd PARAMS ((bfd *, unsigned short, bfd_byte *, bfd_byte *, unsigned int, unsigned int)); -static const bfd_target * pe_ILF_object_p PARAMS ((bfd *)); -static const bfd_target * pe_bfd_object_p PARAMS ((bfd *)); -#endif /* COFF_IMAGE_WITH_PE */ - -/**********************************************************************/ - -#ifndef NO_COFF_RELOCS -static void -coff_swap_reloc_in (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - RELOC *reloc_src = (RELOC *) src; - struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; - - reloc_dst->r_vaddr = bfd_h_get_32(abfd, (bfd_byte *)reloc_src->r_vaddr); - reloc_dst->r_symndx = bfd_h_get_signed_32(abfd, (bfd_byte *) reloc_src->r_symndx); - - reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type); - -#ifdef SWAP_IN_RELOC_OFFSET - reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd, - (bfd_byte *) reloc_src->r_offset); -#endif -} - -static unsigned int -coff_swap_reloc_out (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - struct internal_reloc *reloc_src = (struct internal_reloc *)src; - struct external_reloc *reloc_dst = (struct external_reloc *)dst; - bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr); - bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx); - - bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *) - reloc_dst->r_type); - -#ifdef SWAP_OUT_RELOC_OFFSET - SWAP_OUT_RELOC_OFFSET(abfd, - reloc_src->r_offset, - (bfd_byte *) reloc_dst->r_offset); -#endif -#ifdef SWAP_OUT_RELOC_EXTRA - SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst); -#endif - return RELSZ; -} -#endif /* not NO_COFF_RELOCS */ - -static void -coff_swap_filehdr_in (abfd, src, dst) - bfd *abfd; - PTR src; - PTR dst; -{ - FILHDR *filehdr_src = (FILHDR *) src; - struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst; - filehdr_dst->f_magic = bfd_h_get_16(abfd, (bfd_byte *) filehdr_src->f_magic); - filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns); - filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat); - - filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms); - filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags); - filehdr_dst->f_symptr = bfd_h_get_32 (abfd, (bfd_byte *) filehdr_src->f_symptr); - - /* Other people's tools sometimes generate headers with an nsyms but - a zero symptr. */ - if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0) - { - filehdr_dst->f_nsyms = 0; - filehdr_dst->f_flags |= F_LSYMS; - } - - filehdr_dst->f_opthdr = bfd_h_get_16(abfd, - (bfd_byte *)filehdr_src-> f_opthdr); -} - -#ifdef COFF_IMAGE_WITH_PE -# define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out -#else -# define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out -#endif - -static void -coff_swap_scnhdr_in (abfd, ext, in) - bfd *abfd; - PTR ext; - PTR in; -{ - SCNHDR *scnhdr_ext = (SCNHDR *) ext; - struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in; - - memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name)); - scnhdr_int->s_vaddr = - GET_SCNHDR_VADDR (abfd, (bfd_byte *) scnhdr_ext->s_vaddr); - scnhdr_int->s_paddr = - GET_SCNHDR_PADDR (abfd, (bfd_byte *) scnhdr_ext->s_paddr); - scnhdr_int->s_size = - GET_SCNHDR_SIZE (abfd, (bfd_byte *) scnhdr_ext->s_size); - scnhdr_int->s_scnptr = - GET_SCNHDR_SCNPTR (abfd, (bfd_byte *) scnhdr_ext->s_scnptr); - scnhdr_int->s_relptr = - GET_SCNHDR_RELPTR (abfd, (bfd_byte *) scnhdr_ext->s_relptr); - scnhdr_int->s_lnnoptr = - GET_SCNHDR_LNNOPTR (abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr); - scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags); - - /* MS handles overflow of line numbers by carrying into the reloc - field (it appears). Since it's supposed to be zero for PE - *IMAGE* format, that's safe. This is still a bit iffy. */ -#ifdef COFF_IMAGE_WITH_PE - scnhdr_int->s_nlnno = - (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nlnno) - + (bfd_h_get_16 (abfd, (bfd_byte *) scnhdr_ext->s_nreloc) << 16)); - scnhdr_int->s_nreloc = 0; -#else - scnhdr_int->s_nreloc = bfd_h_get_16 (abfd, - (bfd_byte *) scnhdr_ext->s_nreloc); - scnhdr_int->s_nlnno = bfd_h_get_16 (abfd, - (bfd_byte *) scnhdr_ext->s_nlnno); -#endif - - if (scnhdr_int->s_vaddr != 0) - { - scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase; - scnhdr_int->s_vaddr &= 0xffffffff; - } - -#ifndef COFF_NO_HACK_SCNHDR_SIZE - /* If this section holds uninitialized data, use the virtual size - (stored in s_paddr) instead of the physical size. */ - if ((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0 - && (scnhdr_int->s_paddr > 0)) - { - scnhdr_int->s_size = scnhdr_int->s_paddr; - /* This code used to set scnhdr_int->s_paddr to 0. However, - coff_set_alignment_hook stores s_paddr in virt_size, which - only works if it correctly holds the virtual size of the - section. */ - } -#endif -} - -static boolean -pe_mkobject (abfd) - bfd * abfd; -{ - pe_data_type *pe; - abfd->tdata.pe_obj_data = - (struct pe_tdata *) bfd_zalloc (abfd, sizeof (pe_data_type)); - - if (abfd->tdata.pe_obj_data == 0) - return false; - - pe = pe_data (abfd); - - pe->coff.pe = 1; - - /* in_reloc_p is architecture dependent. */ - pe->in_reloc_p = in_reloc_p; - -#ifdef PEI_FORCE_MINIMUM_ALIGNMENT - pe->force_minimum_alignment = 1; -#endif -#ifdef PEI_TARGET_SUBSYSTEM - pe->target_subsystem = PEI_TARGET_SUBSYSTEM; -#endif - - return true; -} - -/* Create the COFF backend specific information. */ -static PTR -pe_mkobject_hook (abfd, filehdr, aouthdr) - bfd * abfd; - PTR filehdr; - PTR aouthdr ATTRIBUTE_UNUSED; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - pe_data_type *pe; - - if (pe_mkobject (abfd) == false) - return NULL; - - pe = pe_data (abfd); - pe->coff.sym_filepos = internal_f->f_symptr; - /* These members communicate important constants about the symbol - table to GDB's symbol-reading code. These `constants' - unfortunately vary among coff implementations... */ - pe->coff.local_n_btmask = N_BTMASK; - pe->coff.local_n_btshft = N_BTSHFT; - pe->coff.local_n_tmask = N_TMASK; - pe->coff.local_n_tshift = N_TSHIFT; - pe->coff.local_symesz = SYMESZ; - pe->coff.local_auxesz = AUXESZ; - pe->coff.local_linesz = LINESZ; - - pe->coff.timestamp = internal_f->f_timdat; - - obj_raw_syment_count (abfd) = - obj_conv_table_size (abfd) = - internal_f->f_nsyms; - - pe->real_flags = internal_f->f_flags; - - if ((internal_f->f_flags & F_DLL) != 0) - pe->dll = 1; - - if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0) - abfd->flags |= HAS_DEBUG; - -#ifdef COFF_IMAGE_WITH_PE - if (aouthdr) - pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe; -#endif - -#ifdef ARM - if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags)) - coff_data (abfd) ->flags = 0; -#endif - - return (PTR) pe; -} - -static boolean -pe_print_private_bfd_data (abfd, vfile) - bfd *abfd; - PTR vfile; -{ - FILE *file = (FILE *) vfile; - - if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile)) - return false; - - if (pe_saved_coff_bfd_print_private_bfd_data != NULL) - { - fputc ('\n', file); - - return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile); - } - - return true; -} - -/* Copy any private info we understand from the input bfd - to the output bfd. */ - -static boolean -pe_bfd_copy_private_bfd_data (ibfd, obfd) - bfd *ibfd, *obfd; -{ - if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd)) - return false; - - if (pe_saved_coff_bfd_copy_private_bfd_data) - return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd); - - return true; -} - -#define coff_bfd_copy_private_section_data \ - _bfd_XX_bfd_copy_private_section_data - -#define coff_get_symbol_info _bfd_XX_get_symbol_info - -#ifdef COFF_IMAGE_WITH_PE - -/* Code to handle Microsoft's Image Library Format. - Also known as LINK6 format. - Documentation about this format can be found at: - - http://msdn.microsoft.com/library/specs/pecoff_section8.htm */ - -/* The following constants specify the sizes of the various data - structures that we have to create in order to build a bfd describing - an ILF object file. The final "+ 1" in the definitions of SIZEOF_IDATA6 - and SIZEOF_IDATA7 below is to allow for the possibility that we might - need a padding byte in order to ensure 16 bit alignment for the section's - contents. - - The value for SIZEOF_ILF_STRINGS is computed as follows: - - There will be NUM_ILF_SECTIONS section symbols. Allow 9 characters - per symbol for their names (longest section name is .idata$x). - - There will be two symbols for the imported value, one the symbol name - and one with _imp__ prefixed. Allowing for the terminating nul's this - is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll). - - The strings in the string table must start STRING__SIZE_SIZE bytes into - the table in order to for the string lookup code in coffgen/coffcode to - work. */ -#define NUM_ILF_RELOCS 8 -#define NUM_ILF_SECTIONS 6 -#define NUM_ILF_SYMS (2 + NUM_ILF_SECTIONS) - -#define SIZEOF_ILF_SYMS (NUM_ILF_SYMS * sizeof (* vars.sym_cache)) -#define SIZEOF_ILF_SYM_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_table)) -#define SIZEOF_ILF_NATIVE_SYMS (NUM_ILF_SYMS * sizeof (* vars.native_syms)) -#define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table)) -#define SIZEOF_ILF_EXT_SYMS (NUM_ILF_SYMS * sizeof (* vars.esym_table)) -#define SIZEOF_ILF_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.reltab)) -#define SIZEOF_ILF_INT_RELOCS (NUM_ILF_RELOCS * sizeof (* vars.int_reltab)) -#define SIZEOF_ILF_STRINGS (strlen (symbol_name) * 2 + 8 \ - + 21 + strlen (source_dll) \ - + NUM_ILF_SECTIONS * 9 \ - + STRING_SIZE_SIZE) -#define SIZEOF_IDATA2 (5 * 4) -#define SIZEOF_IDATA4 (1 * 4) -#define SIZEOF_IDATA5 (1 * 4) -#define SIZEOF_IDATA6 (2 + strlen (symbol_name) + 1 + 1) -#define SIZEOF_IDATA7 (strlen (source_dll) + 1 + 1) -#define SIZEOF_ILF_SECTIONS (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata)) - -#define ILF_DATA_SIZE \ - sizeof (* vars.bim) \ - + SIZEOF_ILF_SYMS \ - + SIZEOF_ILF_SYM_TABLE \ - + SIZEOF_ILF_NATIVE_SYMS \ - + SIZEOF_ILF_SYM_PTR_TABLE \ - + SIZEOF_ILF_EXT_SYMS \ - + SIZEOF_ILF_RELOCS \ - + SIZEOF_ILF_INT_RELOCS \ - + SIZEOF_ILF_STRINGS \ - + SIZEOF_IDATA2 \ - + SIZEOF_IDATA4 \ - + SIZEOF_IDATA5 \ - + SIZEOF_IDATA6 \ - + SIZEOF_IDATA7 \ - + SIZEOF_ILF_SECTIONS \ - + MAX_TEXT_SECTION_SIZE - -/* Create an empty relocation against the given symbol. */ -static void -pe_ILF_make_a_symbol_reloc (pe_ILF_vars * vars, - bfd_vma address, - bfd_reloc_code_real_type reloc, - struct symbol_cache_entry ** sym, - unsigned int sym_index) -{ - arelent * entry; - struct internal_reloc * internal; - - entry = vars->reltab + vars->relcount; - internal = vars->int_reltab + vars->relcount; - - entry->address = address; - entry->addend = 0; - entry->howto = bfd_reloc_type_lookup (vars->abfd, reloc); - entry->sym_ptr_ptr = sym; - - internal->r_vaddr = address; - internal->r_symndx = sym_index; - internal->r_type = entry->howto->type; -#if 0 /* These fields do not need to be initialised. */ - internal->r_size = 0; - internal->r_extern = 0; - internal->r_offset = 0; -#endif - - vars->relcount ++; - - BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS); -} - -/* Create an empty relocation against the given section. */ -static void -pe_ILF_make_a_reloc (pe_ILF_vars * vars, - bfd_vma address, - bfd_reloc_code_real_type reloc, - asection_ptr sec) -{ - pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr, - coff_section_data (vars->abfd, sec)->i); -} - -/* Move the queued relocs into the given section. */ -static void -pe_ILF_save_relocs (pe_ILF_vars * vars, - asection_ptr sec) -{ - /* Make sure that there is somewhere to store the internal relocs. */ - if (coff_section_data (vars->abfd, sec) == NULL) - /* We should probably return an error indication here. */ - abort (); - - coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab; - coff_section_data (vars->abfd, sec)->keep_relocs = true; - - sec->relocation = vars->reltab; - sec->reloc_count = vars->relcount; - sec->flags |= SEC_RELOC; - - vars->reltab += vars->relcount; - vars->int_reltab += vars->relcount; - vars->relcount = 0; - - BFD_ASSERT ((bfd_byte *)vars->int_reltab < (bfd_byte *)vars->string_table); -} - -/* Create a global symbol and add it to the relevant tables. */ -static void -pe_ILF_make_a_symbol (pe_ILF_vars * vars, - const char * prefix, - const char * symbol_name, - asection_ptr section, - flagword extra_flags) -{ - coff_symbol_type * sym; - combined_entry_type * ent; - SYMENT * esym; - unsigned short sclass; - - if (extra_flags & BSF_LOCAL) - sclass = C_STAT; - else - sclass = C_EXT; - -#ifdef THUMBPEMAGIC - if (vars->magic == THUMBPEMAGIC) - { - if (extra_flags & BSF_FUNCTION) - sclass = C_THUMBEXTFUNC; - else if (extra_flags & BSF_LOCAL) - sclass = C_THUMBSTAT; - else - sclass = C_THUMBEXT; - } -#endif - - BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS); - - sym = vars->sym_ptr; - ent = vars->native_ptr; - esym = vars->esym_ptr; - - /* Copy the symbol's name into the string table. */ - sprintf (vars->string_ptr, "%s%s", prefix, symbol_name); - - if (section == NULL) - section = (asection_ptr) & bfd_und_section; - - /* Initialise the external symbol. */ - bfd_h_put_32 (vars->abfd, vars->string_ptr - vars->string_table, (bfd_byte *) esym->e.e.e_offset); - bfd_h_put_16 (vars->abfd, section->target_index, (bfd_byte *) esym->e_scnum); - esym->e_sclass[0] = sclass; - - /* The following initialisations are unnecessary - the memory is - zero initialised. They are just kept here as reminders. */ -#if 0 - esym->e.e.e_zeroes = 0; - esym->e_value = 0; - esym->e_type = T_NULL; - esym->e_numaux = 0; -#endif - - /* Initialise the internal symbol structure. */ - ent->u.syment.n_sclass = sclass; - ent->u.syment.n_scnum = section->target_index; - ent->u.syment._n._n_n._n_offset = (long) sym; - -#if 0 /* See comment above. */ - ent->u.syment.n_value = 0; - ent->u.syment.n_flags = 0; - ent->u.syment.n_type = T_NULL; - ent->u.syment.n_numaux = 0; - ent->fix_value = 0; -#endif - - sym->symbol.the_bfd = vars->abfd; - sym->symbol.name = vars->string_ptr; - sym->symbol.flags = BSF_EXPORT | BSF_GLOBAL | extra_flags; - sym->symbol.section = section; - sym->native = ent; - -#if 0 /* See comment above. */ - sym->symbol.value = 0; - sym->symbol.udata.i = 0; - sym->done_lineno = false; - sym->lineno = NULL; -#endif - - * vars->table_ptr = vars->sym_index; - * vars->sym_ptr_ptr = sym; - - /* Adjust pointers for the next symbol. */ - vars->sym_index ++; - vars->sym_ptr ++; - vars->sym_ptr_ptr ++; - vars->table_ptr ++; - vars->native_ptr ++; - vars->esym_ptr ++; - vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1; - - BFD_ASSERT (vars->string_ptr < vars->end_string_ptr); -} - -/* Create a section. */ -static asection_ptr -pe_ILF_make_a_section (pe_ILF_vars * vars, - const char * name, - unsigned int size, - flagword extra_flags) -{ - asection_ptr sec; - flagword flags; - - sec = bfd_make_section_old_way (vars->abfd, name); - if (sec == NULL) - return NULL; - - flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY; - - bfd_set_section_flags (vars->abfd, sec, flags | extra_flags); - - bfd_set_section_alignment (vars->abfd, sec, 2); - - /* Check that we will not run out of space. */ - BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size); - - /* Set the section size and contents. The actual - contents are filled in by our parent. */ - bfd_set_section_size (vars->abfd, sec, size); - sec->contents = vars->data; - sec->target_index = vars->sec_index ++; - - /* Advance data pointer in the vars structure. */ - vars->data += size; - - /* Skip the padding byte if it was not needed. - The logic here is that if the string length is odd, - then the entire string length, including the null byte, - is even and so the extra, padding byte, is not needed. */ - if (size & 1) - vars->data --; - - /* Create a coff_section_tdata structure for our use. */ - sec->used_by_bfd = (struct coff_section_tdata *) vars->data; - vars->data += sizeof (struct coff_section_tdata); - - BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size); - - /* Create a symbol to refer to this section. */ - pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL); - - /* Cache the index to the symbol in the coff_section_data structure. */ - coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1; - - return sec; -} - -/* This structure contains the code that goes into the .text section - in order to perform a jump into the DLL lookup table. The entries - in the table are index by the magic number used to represent the - machine type in the PE file. The contents of the data[] arrays in - these entries are stolen from the jtab[] arrays in ld/pe-dll.c. - The SIZE field says how many bytes in the DATA array are actually - used. The OFFSET field says where in the data array the address - of the .idata$5 section should be placed. */ -#define MAX_TEXT_SECTION_SIZE 32 - -typedef struct -{ - unsigned short magic; - unsigned char data[MAX_TEXT_SECTION_SIZE]; - unsigned int size; - unsigned int offset; -} -jump_table; - -static jump_table jtab[] = -{ -#ifdef I386MAGIC - { I386MAGIC, - { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 }, - 8, 2 - }, -#endif - -#ifdef MC68MAGIC - { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 }, -#endif -#ifdef MIPS_ARCH_MAGIC_WINCE - { MIPS_ARCH_MAGIC_WINCE, - { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, - 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 }, - 16, 0 - }, -#endif - -#ifdef SH_ARCH_MAGIC_WINCE - { SH_ARCH_MAGIC_WINCE, - { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, - 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 }, - 12, 8 - }, -#endif - -#ifdef ARMPEMAGIC - { ARMPEMAGIC, - { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0, - 0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00}, - 12, 8 - }, -#endif - -#ifdef THUMBPEMAGIC - { THUMBPEMAGIC, - { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46, - 0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 }, - 16, 12 - }, -#endif - { 0, { 0 }, 0, 0 } -}; - -#ifndef NUM_ENTRIES -#define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0]) -#endif - -/* Build a full BFD from the information supplied in a ILF object. */ -static boolean -pe_ILF_build_a_bfd (bfd * abfd, - unsigned short magic, - bfd_byte * symbol_name, - bfd_byte * source_dll, - unsigned int ordinal, - unsigned int types) -{ - bfd_byte * ptr; - pe_ILF_vars vars; - struct internal_filehdr internal_f; - unsigned int import_type; - unsigned int import_name_type; - asection_ptr id4, id5, id6 = NULL, text = NULL; - coff_symbol_type ** imp_sym; - unsigned int imp_index; - - /* Decode and verify the types field of the ILF structure. */ - import_type = types & 0x3; - import_name_type = (types & 0x1c) >> 2; - - switch (import_type) - { - case IMPORT_CODE: - case IMPORT_DATA: - break; - - case IMPORT_CONST: - /* XXX code yet to be written. */ - _bfd_error_handler (_("%s: Unhandled import type; %x"), - bfd_get_filename (abfd), import_type); - return false; - - default: - _bfd_error_handler (_("%s: Unrecognised import type; %x"), - bfd_get_filename (abfd), import_type); - return false; - } - - switch (import_name_type) - { - case IMPORT_ORDINAL: - case IMPORT_NAME: - case IMPORT_NAME_NOPREFIX: - case IMPORT_NAME_UNDECORATE: - break; - - default: - _bfd_error_handler (_("%s: Unrecognised import name type; %x"), - bfd_get_filename (abfd), import_name_type); - return false; - } - - /* Initialise local variables. - - Note these are kept in a structure rather than being - declared as statics since bfd frowns on global variables. - - We are going to construct the contents of the BFD in memory, - so allocate all the space that we will need right now. */ - ptr = bfd_zalloc (abfd, ILF_DATA_SIZE); - if (ptr == NULL) - return false; - - /* Create a bfd_in_memory structure. */ - vars.bim = (struct bfd_in_memory *) ptr; - vars.bim->buffer = ptr; - vars.bim->size = ILF_DATA_SIZE; - ptr += sizeof (* vars.bim); - - /* Initialise the pointers to regions of the memory and the - other contents of the pe_ILF_vars structure as well. */ - vars.sym_cache = (coff_symbol_type *) ptr; - vars.sym_ptr = (coff_symbol_type *) ptr; - vars.sym_index = 0; - ptr += SIZEOF_ILF_SYMS; - - vars.sym_table = (unsigned int *) ptr; - vars.table_ptr = (unsigned int *) ptr; - ptr += SIZEOF_ILF_SYM_TABLE; - - vars.native_syms = (combined_entry_type *) ptr; - vars.native_ptr = (combined_entry_type *) ptr; - ptr += SIZEOF_ILF_NATIVE_SYMS; - - vars.sym_ptr_table = (coff_symbol_type **) ptr; - vars.sym_ptr_ptr = (coff_symbol_type **) ptr; - ptr += SIZEOF_ILF_SYM_PTR_TABLE; - - vars.esym_table = (SYMENT *) ptr; - vars.esym_ptr = (SYMENT *) ptr; - ptr += SIZEOF_ILF_EXT_SYMS; - - vars.reltab = (arelent *) ptr; - vars.relcount = 0; - ptr += SIZEOF_ILF_RELOCS; - - vars.int_reltab = (struct internal_reloc *) ptr; - ptr += SIZEOF_ILF_INT_RELOCS; - - vars.string_table = ptr; - vars.string_ptr = ptr + STRING_SIZE_SIZE; - ptr += SIZEOF_ILF_STRINGS; - vars.end_string_ptr = ptr; - - /* The remaining space in bim->buffer is used - by the pe_ILF_make_a_section() function. */ - vars.data = ptr; - vars.abfd = abfd; - vars.sec_index = 0; - vars.magic = magic; - - /* Create the initial .idata$<n> sections: - [.idata$2: Import Directory Table -- not needed] - .idata$4: Import Lookup Table - .idata$5: Import Address Table - - Note we do not create a .idata$3 section as this is - created for us by the linker script. */ - id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0); - id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0); - if (id4 == NULL || id5 == NULL) - return false; - - /* Fill in the contents of these sections. */ - if (import_name_type == IMPORT_ORDINAL) - { - if (ordinal == 0) - /* XXX - treat as IMPORT_NAME ??? */ - abort (); - - * (unsigned int *) id4->contents = ordinal | 0x80000000; - * (unsigned int *) id5->contents = ordinal | 0x80000000; - } - else - { - char * symbol; - - /* Create .idata$6 - the Hint Name Table. */ - id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0); - if (id6 == NULL) - return false; - - /* If necessary, trim the import symbol name. */ - symbol = symbol_name; - - if (import_name_type != IMPORT_NAME) - /* Skip any prefix in symbol_name. */ - while (*symbol == '@' || * symbol == '?' || * symbol == '_') - ++ symbol; - - if (import_name_type == IMPORT_NAME_UNDECORATE) - { - /* Truncate at the first '@' */ - while (* symbol != 0 && * symbol != '@') - symbol ++; - - * symbol = 0; - } - - id6->contents[0] = ordinal & 0xff; - id6->contents[1] = ordinal >> 8; - - strcpy (id6->contents + 2, symbol); - } - - if (import_name_type != IMPORT_ORDINAL) - { - pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); - pe_ILF_save_relocs (& vars, id4); - - pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_RVA, id6); - pe_ILF_save_relocs (& vars, id5); - } - - /* Create extra sections depending upon the type of import we are dealing with. */ - switch (import_type) - { - int i; - - case IMPORT_CODE: - /* Create a .text section. - First we need to look up its contents in the jump table. */ - for (i = NUM_ENTRIES (jtab); i--;) - { - if (jtab[i].size == 0) - continue; - if (jtab[i].magic == magic) - break; - } - /* If we did not find a matching entry something is wrong. */ - if (i < 0) - abort (); - - /* Create the .text section. */ - text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE); - if (text == NULL) - return false; - - /* Copy in the jump code. */ - memcpy (text->contents, jtab[i].data, jtab[i].size); - - /* Create an import symbol. */ - pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0); - imp_sym = vars.sym_ptr_ptr - 1; - imp_index = vars.sym_index - 1; - - /* Create a reloc for the data in the text section. */ -#ifdef MIPS_ARCH_MAGIC_WINCE - if (magic == MIPS_ARCH_MAGIC_WINCE) - { - pe_ILF_make_a_symbol_reloc (& vars, 0, BFD_RELOC_HI16_S, - (struct symbol_cache_entry **) imp_sym, imp_index); - pe_ILF_make_a_reloc (& vars, 0, BFD_RELOC_LO16, text); - pe_ILF_make_a_symbol_reloc (& vars, 4, BFD_RELOC_LO16, - (struct symbol_cache_entry **) imp_sym, imp_index); - } - else -#endif - pe_ILF_make_a_symbol_reloc (& vars, jtab[i].offset, BFD_RELOC_32, - (asymbol **) imp_sym, imp_index); - - pe_ILF_save_relocs (& vars, text); - break; - - case IMPORT_DATA: - break; - - default: - /* XXX code not yet written. */ - abort (); - } - - /* Initialise the bfd. */ - memset (& internal_f, 0, sizeof (internal_f)); - - internal_f.f_magic = magic; - internal_f.f_symptr = 0; - internal_f.f_nsyms = 0; - internal_f.f_flags = F_AR32WR | F_LNNO; /* XXX is this correct ? */ - - if ( ! bfd_set_start_address (abfd, 0) - || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f)) - return false; - - if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL) - return false; - - coff_data (abfd)->pe = 1; -#ifdef THUMBPEMAGIC - if (vars.magic == THUMBPEMAGIC) - /* Stop some linker warnings about thumb code not supporting interworking. */ - coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET; -#endif - - /* Switch from file contents to memory contents. */ - bfd_cache_close (abfd); - - abfd->iostream = (PTR) vars.bim; - abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */; - abfd->where = 0; - obj_sym_filepos (abfd) = 0; - - /* Now create a symbol describing the imported value. */ - switch (import_type) - { - bfd_byte * ptr; - - case IMPORT_CODE: - pe_ILF_make_a_symbol (& vars, "", symbol_name, text, - BSF_NOT_AT_END | BSF_FUNCTION); - - /* Create an import symbol for the DLL, without the - .dll suffix. */ - ptr = strrchr (source_dll, '.'); - if (ptr) - * ptr = 0; - pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0); - if (ptr) - * ptr = '.'; - break; - - case IMPORT_DATA: - /* Nothing to do here. */ - break; - - default: - /* XXX code not yet written. */ - abort (); - } - - /* Point the bfd at the symbol table. */ - obj_symbols (abfd) = vars.sym_cache; - bfd_get_symcount (abfd) = vars.sym_index; - - obj_raw_syments (abfd) = vars.native_syms; - obj_raw_syment_count (abfd) = vars.sym_index; - - obj_coff_external_syms (abfd) = (PTR) vars.esym_table; - obj_coff_keep_syms (abfd) = true; - - obj_convert (abfd) = vars.sym_table; - obj_conv_table_size (abfd) = vars.sym_index; - - obj_coff_strings (abfd) = vars.string_table; - obj_coff_keep_strings (abfd) = true; - - abfd->flags |= HAS_SYMS; - - return true; -} - -/* We have detected a Image Library Format archive element. - Decode the element and return the appropriate target. */ -static const bfd_target * -pe_ILF_object_p (bfd * abfd) -{ - bfd_byte buffer[16]; - bfd_byte * ptr; - bfd_byte * symbol_name; - bfd_byte * source_dll; - unsigned int machine; - unsigned long size; - unsigned int ordinal; - unsigned int types; - unsigned short magic; - - /* Upon entry the first four buyes of the ILF header have - already been read. Now read the rest of the header. */ - if (bfd_read (buffer, 1, 16, abfd) != 16) - return NULL; - - ptr = buffer; - - /* We do not bother to check the version number. - version = bfd_h_get_16 (abfd, ptr); */ - ptr += 2; - - machine = bfd_h_get_16 (abfd, ptr); - ptr += 2; - - /* Check that the machine type is recognised. */ - magic = 0; - - switch (machine) - { - case IMAGE_FILE_MACHINE_UNKNOWN: - case IMAGE_FILE_MACHINE_ALPHA: - case IMAGE_FILE_MACHINE_ALPHA64: - case IMAGE_FILE_MACHINE_IA64: - break; - - case IMAGE_FILE_MACHINE_I386: -#ifdef I386MAGIC - magic = I386MAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_M68K: -#ifdef MC68AGIC - magic = MC68MAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_R3000: - case IMAGE_FILE_MACHINE_R4000: - case IMAGE_FILE_MACHINE_R10000: - - case IMAGE_FILE_MACHINE_MIPS16: - case IMAGE_FILE_MACHINE_MIPSFPU: - case IMAGE_FILE_MACHINE_MIPSFPU16: -#ifdef MIPS_ARCH_MAGIC_WINCE - magic = MIPS_ARCH_MAGIC_WINCE; -#endif - break; - - case IMAGE_FILE_MACHINE_SH3: - case IMAGE_FILE_MACHINE_SH4: -#ifdef SH_ARCH_MAGIC_WINCE - magic = SH_ARCH_MAGIC_WINCE; -#endif - break; - - case IMAGE_FILE_MACHINE_ARM: -#ifdef ARMPEMAGIC - magic = ARMPEMAGIC; -#endif - break; - - case IMAGE_FILE_MACHINE_THUMB: -#ifdef THUMBPEMAGIC - { - extern const bfd_target TARGET_LITTLE_SYM; - - if (abfd->xvec == & TARGET_LITTLE_SYM) - magic = THUMBPEMAGIC; - } -#endif - break; - - case IMAGE_FILE_MACHINE_POWERPC: - /* We no longer support PowerPC. */ - default: - _bfd_error_handler - ( -_("%s: Unrecognised machine type (0x%x) in Import Library Format archive"), - bfd_get_filename (abfd), machine); - bfd_set_error (bfd_error_malformed_archive); - - return NULL; - break; - } - - if (magic == 0) - { - _bfd_error_handler - ( -_("%s: Recognised but unhandled machine type (0x%x) in Import Library Format archive"), - bfd_get_filename (abfd), machine); - bfd_set_error (bfd_error_wrong_format); - - return NULL; - } - - /* We do not bother to check the date. - date = bfd_h_get_32 (abfd, ptr); */ - ptr += 4; - - size = bfd_h_get_32 (abfd, ptr); - ptr += 4; - - if (size == 0) - { - _bfd_error_handler - (_("%s: size field is zero in Import Library Format header"), - bfd_get_filename (abfd)); - bfd_set_error (bfd_error_malformed_archive); - - return NULL; - } - - ordinal = bfd_h_get_16 (abfd, ptr); - ptr += 2; - - types = bfd_h_get_16 (abfd, ptr); - /* ptr += 2; */ - - /* Now read in the two strings that follow. */ - ptr = bfd_alloc (abfd, size); - if (ptr == NULL) - return NULL; - - if (bfd_read (ptr, 1, size, abfd) != size) - return NULL; - - symbol_name = ptr; - source_dll = ptr + strlen (ptr) + 1; - - /* Verify that the strings are null terminated. */ - if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size)) - { - _bfd_error_handler - (_("%s: string not null terminated in ILF object file."), - bfd_get_filename (abfd)); - bfd_set_error (bfd_error_malformed_archive); - - return NULL; - } - - /* Now construct the bfd. */ - if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name, - source_dll, ordinal, types)) - return NULL; - - return abfd->xvec; -} - -static const bfd_target * -pe_bfd_object_p (bfd * abfd) -{ - bfd_byte buffer[4]; - struct external_PEI_DOS_hdr dos_hdr; - struct external_PEI_IMAGE_hdr image_hdr; - file_ptr offset; - - /* Detect if this a Microsoft Import Library Format element. */ - if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 - || bfd_read (buffer, 1, 4, abfd) != 4) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (bfd_h_get_32 (abfd, buffer) == 0xffff0000) - return pe_ILF_object_p (abfd); - - if (bfd_seek (abfd, 0x00, SEEK_SET) != 0 - || bfd_read (&dos_hdr, 1, sizeof (dos_hdr), abfd) - != sizeof (dos_hdr)) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* There are really two magic numbers involved; the magic number - that says this is a NT executable (PEI) and the magic number that - determines the architecture. The former is DOSMAGIC, stored in - the e_magic field. The latter is stored in the f_magic field. - If the NT magic number isn't valid, the architecture magic number - could be mimicked by some other field (specifically, the number - of relocs in section 3). Since this routine can only be called - correctly for a PEI file, check the e_magic number here, and, if - it doesn't match, clobber the f_magic number so that we don't get - a false match. */ - if (bfd_h_get_16 (abfd, (bfd_byte *) dos_hdr.e_magic) != DOSMAGIC) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - offset = bfd_h_get_32 (abfd, (bfd_byte *) dos_hdr.e_lfanew); - if (bfd_seek (abfd, (file_ptr) offset, SEEK_SET) != 0 - || bfd_read (&image_hdr, 1, sizeof (image_hdr), abfd) - != sizeof (image_hdr)) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - if (bfd_h_get_32 (abfd, (bfd_byte *) image_hdr.nt_signature) - != 0x4550) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - /* Here is the hack. coff_object_p wants to read filhsz bytes to - pick up the COFF header for PE, see "struct external_PEI_filehdr" - in include/coff/pe.h. We adjust so that that will work. */ - if (bfd_seek (abfd, - (file_ptr) (offset - sizeof (dos_hdr)), - SEEK_SET) - != 0) - { - if (bfd_get_error () != bfd_error_system_call) - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - return coff_object_p (abfd); -} - -#define coff_object_p pe_bfd_object_p -#endif /* COFF_IMAGE_WITH_PE */ diff --git a/contrib/binutils/bfd/po/POTFILES.in b/contrib/binutils/bfd/po/POTFILES.in deleted file mode 100644 index f75b4caec8982..0000000000000 --- a/contrib/binutils/bfd/po/POTFILES.in +++ /dev/null @@ -1,255 +0,0 @@ -aix386-core.c -aout0.c -aout32.c -aout64.c -aout-adobe.c -aout-arm.c -aout-cris.c -aoutf1.h -aout-ns32k.c -aout-sparcle.c -aout-target.h -aout-tic30.c -aoutx.h -archive.c -archures.c -armnetbsd.c -bfd.c -binary.c -bout.c -cache.c -cf-i386lynx.c -cf-m68klynx.c -cf-sparclynx.c -cisco-core.c -coff64-rs6000.c -coff-a29k.c -coff-alpha.c -coff-apollo.c -coff-arm.c -coff-aux.c -coffcode.h -coffgen.c -coff-go32.c -coff-h8300.c -coff-h8500.c -coff-i386.c -coff-i860.c -coff-i960.c -cofflink.c -coff-m68k.c -coff-m88k.c -coff-mips.c -coff-pmac.c -coff-rs6000.c -coff-sh.c -coff-sparc.c -coff-stgo32.c -coff-svm68k.c -coffswap.h -coff-tic30.c -coff-tic54x.c -coff-tic80.c -coff-u68k.c -coff-w65.c -coff-we32k.c -coff-z8k.c -corefile.c -cpu-a29k.c -cpu-alpha.c -cpu-arc.c -cpu-arm.c -cpu-avr.c -cpu-cris.c -cpu-d10v.c -cpu-d30v.c -cpu-fr30.c -cpu-h8300.c -cpu-h8500.c -cpu-hppa.c -cpu-i370.c -cpu-i386.c -cpu-i860.c -cpu-i960.c -cpu-ia64.c -cpu-m10200.c -cpu-m10300.c -cpu-m32r.c -cpu-m68hc11.c -cpu-m68hc12.c -cpu-m68k.c -cpu-m88k.c -cpu-mcore.c -cpu-mips.c -cpu-ns32k.c -cpu-pj.c -cpu-powerpc.c -cpu-rs6000.c -cpu-sh.c -cpu-sparc.c -cpu-tic30.c -cpu-tic54x.c -cpu-tic80.c -cpu-v850.c -cpu-vax.c -cpu-w65.c -cpu-we32k.c -cpu-z8k.c -demo64.c -dwarf1.c -dwarf2.c -ecoff.c -ecofflink.c -ecoffswap.h -efi-app-ia32.c -efi-app-ia64.c -elf32-arc.c -elf32-arm.h -elf32-avr.c -elf32.c -elf32-cris.c -elf32-d10v.c -elf32-d30v.c -elf32-fr30.c -elf32-gen.c -elf32-hppa.c -elf32-hppa.h -elf32-i370.c -elf32-i386.c -elf32-i860.c -elf32-i960.c -elf32-m32r.c -elf32-m68hc11.c -elf32-m68hc12.c -elf32-m68k.c -elf32-m88k.c -elf32-mcore.c -elf32-mips.c -elf32-pj.c -elf32-ppc.c -elf32-sh.c -elf32-sh-lin.c -elf32-sparc.c -elf32-v850.c -elf64-alpha.c -elf64.c -elf64-gen.c -elf64-hppa.c -elf64-hppa.h -elf64-mips.c -elf64-sparc.c -elf64-x86-64.c -elfarm-nabi.c -elfarm-oabi.c -elf-bfd.h -elf.c -elfcode.h -elfcore.h -elf-hppa.h -elflink.c -elflink.h -elf-m10200.c -elf-m10300.c -epoc-pe-arm.c -epoc-pei-arm.c -format.c -freebsd.h -genlink.h -go32stub.h -hash.c -hp300bsd.c -hp300hpux.c -hpux-core.c -i386aout.c -i386bsd.c -i386dynix.c -i386freebsd.c -i386linux.c -i386lynx.c -i386mach3.c -i386msdos.c -i386netbsd.c -i386os9k.c -ieee.c -ihex.c -init.c -irix-core.c -libaout.h -libbfd.c -libbfd.h -libcoff.h -libecoff.h -libhppa.h -libieee.h -libnlm.h -liboasys.h -libpei.h -linker.c -lynx-core.c -m68k4knetbsd.c -m68klinux.c -m68klynx.c -m68knetbsd.c -m88kmach3.c -mipsbsd.c -netbsd.h -newsos3.c -nlm32-alpha.c -nlm32.c -nlm32-i386.c -nlm32-ppc.c -nlm32-sparc.c -nlm64.c -nlm.c -nlmcode.h -nlmswap.h -nlm-target.h -ns32k.h -ns32knetbsd.c -oasys.c -opncls.c -osf-core.c -pc532-mach.c -pe-arm.c -pe-i386.c -pei-arm.c -peicode.h -peigen.c -pei-i386.c -pei-mcore.c -pei-mips.c -pei-ppc.c -pei-sh.c -pe-mcore.c -pe-mips.c -pe-ppc.c -pe-sh.c -ppcboot.c -reloc16.c -reloc.c -riscix.c -sco5-core.c -section.c -som.c -som.h -sparclinux.c -sparclynx.c -sparcnetbsd.c -srec.c -stabs.c -stab-syms.c -sunos.c -syms.c -targets.c -tekhex.c -trad-core.c -vaxnetbsd.c -versados.c -vms.c -vms-gsd.c -vms.h -vms-hdr.c -vms-misc.c -vms-tir.c -xcofflink.c -xcoff-target.h diff --git a/contrib/binutils/bfd/xcoff-target.h b/contrib/binutils/bfd/xcoff-target.h deleted file mode 100644 index a3cc0c07e2eb7..0000000000000 --- a/contrib/binutils/bfd/xcoff-target.h +++ /dev/null @@ -1,194 +0,0 @@ -/* Common definitions for backends based on IBM RS/6000 "XCOFF64" files. - Copyright 2000, 2001 - Free Software Foundation, Inc. - Contributed by Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Internalcoff.h and coffcode.h modify themselves based on this flag. */ -#define RS6000COFF_C 1 - -#define SELECT_RELOC(internal, howto) \ - { \ - internal.r_type = howto->type; \ - internal.r_size = \ - ((howto->complain_on_overflow == complain_overflow_signed \ - ? 0x80 \ - : 0) \ - | (howto->bitsize - 1)); \ - } - -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) - -#define COFF_LONG_FILENAMES - -#define NO_COFF_SYMBOLS - -#define RTYPE2HOWTO(cache_ptr, dst) _bfd_xcoff_rtype2howto (cache_ptr, dst) - -#define coff_mkobject _bfd_xcoff_mkobject -#define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data -#define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name -#define coff_bfd_reloc_type_lookup _bfd_xcoff_reloc_type_lookup -#define coff_relocate_section _bfd_ppc_xcoff_relocate_section - -#define CORE_FILE_P _bfd_dummy_target - -#define coff_core_file_failing_command _bfd_nocore_core_file_failing_command -#define coff_core_file_failing_signal _bfd_nocore_core_file_failing_signal -#define coff_core_file_matches_executable_p \ - _bfd_nocore_core_file_matches_executable_p - -#ifdef AIX_CORE -#undef CORE_FILE_P -#define CORE_FILE_P rs6000coff_core_p -extern const bfd_target * rs6000coff_core_p (); -extern boolean rs6000coff_core_file_matches_executable_p (); - -#undef coff_core_file_matches_executable_p -#define coff_core_file_matches_executable_p \ - rs6000coff_core_file_matches_executable_p - -extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd)); -#undef coff_core_file_failing_command -#define coff_core_file_failing_command rs6000coff_core_file_failing_command - -extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd)); -#undef coff_core_file_failing_signal -#define coff_core_file_failing_signal rs6000coff_core_file_failing_signal -#endif /* AIX_CORE */ - -#ifdef LYNX_CORE - -#undef CORE_FILE_P -#define CORE_FILE_P lynx_core_file_p -extern const bfd_target *lynx_core_file_p PARAMS ((bfd *abfd)); - -extern boolean lynx_core_file_matches_executable_p PARAMS ((bfd *core_bfd, - bfd *exec_bfd)); -#undef coff_core_file_matches_executable_p -#define coff_core_file_matches_executable_p lynx_core_file_matches_executable_p - -extern char *lynx_core_file_failing_command PARAMS ((bfd *abfd)); -#undef coff_core_file_failing_command -#define coff_core_file_failing_command lynx_core_file_failing_command - -extern int lynx_core_file_failing_signal PARAMS ((bfd *abfd)); -#undef coff_core_file_failing_signal -#define coff_core_file_failing_signal lynx_core_file_failing_signal - -#endif /* LYNX_CORE */ - -#define _bfd_xcoff_bfd_get_relocated_section_contents \ - coff_bfd_get_relocated_section_contents -#define _bfd_xcoff_bfd_relax_section coff_bfd_relax_section -#define _bfd_xcoff_bfd_gc_sections coff_bfd_gc_sections -#define _bfd_xcoff_bfd_link_split_section coff_bfd_link_split_section - -/* XCOFF archives do not have anything which corresponds to an - extended name table. */ - -#define _bfd_xcoff_slurp_extended_name_table bfd_false -#define _bfd_xcoff_construct_extended_name_table \ - ((boolean (*) PARAMS ((bfd *, char **, bfd_size_type *, const char **))) \ - bfd_false) -#define _bfd_xcoff_truncate_arname bfd_dont_truncate_arname - -/* We can use the standard get_elt_at_index routine. */ - -#define _bfd_xcoff_get_elt_at_index _bfd_generic_get_elt_at_index - -/* XCOFF archives do not have a timestamp. */ - -#define _bfd_xcoff_update_armap_timestamp bfd_true - -extern boolean _bfd_xcoff_mkobject PARAMS ((bfd *)); -extern boolean _bfd_xcoff_copy_private_bfd_data PARAMS ((bfd *, bfd *)); -extern boolean _bfd_xcoff_is_local_label_name PARAMS ((bfd *, const char *)); -extern void _bfd_xcoff_rtype2howto - PARAMS ((arelent *, struct internal_reloc *)); -extern reloc_howto_type *_bfd_xcoff_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -extern boolean _bfd_xcoff_slurp_armap PARAMS ((bfd *)); -extern const bfd_target *_bfd_xcoff_archive_p PARAMS ((bfd *)); -extern PTR _bfd_xcoff_read_ar_hdr PARAMS ((bfd *)); -extern bfd *_bfd_xcoff_openr_next_archived_file PARAMS ((bfd *, bfd *)); -extern int _bfd_xcoff_generic_stat_arch_elt PARAMS ((bfd *, struct stat *)); -extern boolean _bfd_xcoff_write_armap - PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); -extern boolean _bfd_xcoff_write_archive_contents PARAMS ((bfd *)); -extern int _bfd_xcoff_sizeof_headers PARAMS ((bfd *, boolean)); -extern void _bfd_xcoff_swap_sym_in PARAMS ((bfd *, PTR, PTR)); -extern unsigned int _bfd_xcoff_swap_sym_out PARAMS ((bfd *, PTR, PTR)); -extern void _bfd_xcoff_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); -extern unsigned int _bfd_xcoff_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR)); - -#ifndef coff_SWAP_sym_in -#define coff_SWAP_sym_in _bfd_xcoff_swap_sym_in -#define coff_SWAP_sym_out _bfd_xcoff_swap_sym_out -#define coff_SWAP_aux_in _bfd_xcoff_swap_aux_in -#define coff_SWAP_aux_out _bfd_xcoff_swap_aux_out -#endif - -#include "coffcode.h" - -/* The transfer vector that leads the outside world to all of the above. */ - -const bfd_target TARGET_SYM = -{ - TARGET_NAME, - bfd_target_xcoff_flavour, - BFD_ENDIAN_BIG, /* data byte order is big */ - BFD_ENDIAN_BIG, /* header byte order is big */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | DYNAMIC | - HAS_SYMS | HAS_LOCALS | WP_TEXT), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ - 0, /* leading char */ - '/', /* ar_pad_char */ - 15, /* ar_max_namelen??? FIXMEmgo */ - - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ - bfd_getb64, bfd_getb_signed_64, bfd_putb64, - bfd_getb32, bfd_getb_signed_32, bfd_putb32, - bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ - - {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ - _bfd_xcoff_archive_p, CORE_FILE_P}, - {bfd_false, coff_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, coff_write_object_contents, /* bfd_write_contents */ - _bfd_xcoff_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (coff), - BFD_JUMP_TABLE_COPY (coff), - BFD_JUMP_TABLE_CORE (coff), - BFD_JUMP_TABLE_ARCHIVE (_bfd_xcoff), - BFD_JUMP_TABLE_SYMBOLS (coff), - BFD_JUMP_TABLE_RELOCS (coff), - BFD_JUMP_TABLE_WRITE (coff), - BFD_JUMP_TABLE_LINK (_bfd_xcoff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff), - - NULL, - - COFF_SWAP_TABLE -}; diff --git a/contrib/binutils/bfd/xcofflink.c b/contrib/binutils/bfd/xcofflink.c deleted file mode 100644 index 5580e9b354391..0000000000000 --- a/contrib/binutils/bfd/xcofflink.c +++ /dev/null @@ -1,6631 +0,0 @@ -/* POWER/PowerPC XCOFF linker support. - Copyright 1995, 1996, 1997, 1998, 1999, 2000 - Free Software Foundation, Inc. - Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "coff/internal.h" -#include "libcoff.h" - -/* This file holds the XCOFF linker code. */ - -#define STRING_SIZE_SIZE (4) - -/* Get the XCOFF hash table entries for a BFD. */ -#define obj_xcoff_sym_hashes(bfd) \ - ((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd)) - -/* XCOFF relocation types. These probably belong in a header file - somewhere. The relocations are described in the function - _bfd_ppc_xcoff_relocate_section in this file. */ - -#define R_POS (0x00) -#define R_NEG (0x01) -#define R_REL (0x02) -#define R_TOC (0x03) -#define R_RTB (0x04) -#define R_GL (0x05) -#define R_TCL (0x06) -#define R_BA (0x08) -#define R_BR (0x0a) -#define R_RL (0x0c) -#define R_RLA (0x0d) -#define R_REF (0x0f) -#define R_TRL (0x12) -#define R_TRLA (0x13) -#define R_RRTBI (0x14) -#define R_RRTBA (0x15) -#define R_CAI (0x16) -#define R_CREL (0x17) -#define R_RBA (0x18) -#define R_RBAC (0x19) -#define R_RBR (0x1a) -#define R_RBRC (0x1b) - -/* The first word of global linkage code. This must be modified by - filling in the correct TOC offset. */ - -#define XCOFF_GLINK_FIRST (0x81820000) /* lwz r12,0(r2) */ - -/* The remaining words of global linkage code. */ - -static unsigned long xcoff_glink_code[] = { - 0x90410014, /* stw r2,20(r1) */ - 0x800c0000, /* lwz r0,0(r12) */ - 0x804c0004, /* lwz r2,4(r12) */ - 0x7c0903a6, /* mtctr r0 */ - 0x4e800420, /* bctr */ - 0x0, /* start of traceback table */ - 0x000c8000, /* traceback table */ - 0x0 /* traceback table */ -}; - -#define XCOFF_GLINK_SIZE \ - (((sizeof xcoff_glink_code / sizeof xcoff_glink_code[0]) * 4) + 4) - -/* We reuse the SEC_ROM flag as a mark flag for garbage collection. - This flag will only be used on input sections. */ - -#define SEC_MARK (SEC_ROM) - -/* The ldhdr structure. This appears at the start of the .loader - section. */ - -struct internal_ldhdr { - /* The version number: currently always 1. */ - unsigned long l_version; - /* The number of symbol table entries. */ - bfd_size_type l_nsyms; - /* The number of relocation table entries. */ - bfd_size_type l_nreloc; - /* The length of the import file string table. */ - bfd_size_type l_istlen; - /* The number of import files. */ - bfd_size_type l_nimpid; - /* The offset from the start of the .loader section to the first - entry in the import file table. */ - bfd_size_type l_impoff; - /* The length of the string table. */ - bfd_size_type l_stlen; - /* The offset from the start of the .loader section to the first - entry in the string table. */ - bfd_size_type l_stoff; -}; - -struct external_ldhdr { - bfd_byte l_version[4]; - bfd_byte l_nsyms[4]; - bfd_byte l_nreloc[4]; - bfd_byte l_istlen[4]; - bfd_byte l_nimpid[4]; - bfd_byte l_impoff[4]; - bfd_byte l_stlen[4]; - bfd_byte l_stoff[4]; -}; - -#define LDHDRSZ (8 * 4) - -/* The ldsym structure. This is used to represent a symbol in the - .loader section. */ - -struct internal_ldsym { - union { - /* The symbol name if <= SYMNMLEN characters. */ - char _l_name[SYMNMLEN]; - struct { - /* Zero if the symbol name is more than SYMNMLEN characters. */ - long _l_zeroes; - /* The offset in the string table if the symbol name is more - than SYMNMLEN characters. */ - long _l_offset; - } _l_l; - } _l; - /* The symbol value. */ - bfd_vma l_value; - /* The symbol section number. */ - short l_scnum; - /* The symbol type and flags. */ - char l_smtype; - /* The symbol storage class. */ - char l_smclas; - /* The import file ID. */ - bfd_size_type l_ifile; - /* Offset to the parameter type check string. */ - bfd_size_type l_parm; -}; - -struct external_ldsym { - union { - bfd_byte _l_name[SYMNMLEN]; - struct { - bfd_byte _l_zeroes[4]; - bfd_byte _l_offset[4]; - } _l_l; - } _l; - bfd_byte l_value[4]; - bfd_byte l_scnum[2]; - bfd_byte l_smtype[1]; - bfd_byte l_smclas[1]; - bfd_byte l_ifile[4]; - bfd_byte l_parm[4]; -}; - -#define LDSYMSZ (8 + 3 * 4 + 2 + 2) - -/* These flags are for the l_smtype field (the lower three bits are an - XTY_* value). */ - -/* Imported symbol. */ -#define L_IMPORT (0x40) -/* Entry point. */ -#define L_ENTRY (0x20) -/* Exported symbol. */ -#define L_EXPORT (0x10) - -/* The ldrel structure. This is used to represent a reloc in the - .loader section. */ - -struct internal_ldrel { - /* The reloc address. */ - bfd_vma l_vaddr; - /* The symbol table index in the .loader section symbol table. */ - bfd_size_type l_symndx; - /* The relocation type and size. */ - short l_rtype; - /* The section number this relocation applies to. */ - short l_rsecnm; -}; - -struct external_ldrel { - bfd_byte l_vaddr[4]; - bfd_byte l_symndx[4]; - bfd_byte l_rtype[2]; - bfd_byte l_rsecnm[2]; -}; - -#define LDRELSZ (2 * 4 + 2 * 2) - -/* The list of import files. */ - -struct xcoff_import_file { - /* The next entry in the list. */ - struct xcoff_import_file *next; - /* The path. */ - const char *path; - /* The file name. */ - const char *file; - /* The member name. */ - const char *member; -}; - -/* An entry in the XCOFF linker hash table. */ - -struct xcoff_link_hash_entry { - struct bfd_link_hash_entry root; - - /* Symbol index in output file. Set to -1 initially. Set to -2 if - there is a reloc against this symbol. */ - long indx; - - /* If we have created a TOC entry for this symbol, this is the .tc - section which holds it. */ - asection *toc_section; - - union { - /* If we have created a TOC entry (the XCOFF_SET_TOC flag is set), - this is the offset in toc_section. */ - bfd_vma toc_offset; - /* If the TOC entry comes from an input file, this is set to the - symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ - long toc_indx; - } u; - - /* If this symbol is a function entry point which is called, this - field holds a pointer to the function descriptor. If this symbol - is a function descriptor, this field holds a pointer to the - function entry point. */ - struct xcoff_link_hash_entry *descriptor; - - /* The .loader symbol table entry, if there is one. */ - struct internal_ldsym *ldsym; - - /* If XCOFF_BUILT_LDSYM is set, this is the .loader symbol table - index. If XCOFF_BUILD_LDSYM is clear, and XCOFF_IMPORT is set, - this is the l_ifile value. */ - long ldindx; - - /* Some linker flags. */ - unsigned short flags; - /* Symbol is referenced by a regular object. */ -#define XCOFF_REF_REGULAR (01) - /* Symbol is defined by a regular object. */ -#define XCOFF_DEF_REGULAR (02) - /* Symbol is defined by a dynamic object. */ -#define XCOFF_DEF_DYNAMIC (04) - /* Symbol is used in a reloc being copied into the .loader section. */ -#define XCOFF_LDREL (010) - /* Symbol is the entry point. */ -#define XCOFF_ENTRY (020) - /* Symbol is called; this is, it appears in a R_BR reloc. */ -#define XCOFF_CALLED (040) - /* Symbol needs the TOC entry filled in. */ -#define XCOFF_SET_TOC (0100) - /* Symbol is explicitly imported. */ -#define XCOFF_IMPORT (0200) - /* Symbol is explicitly exported. */ -#define XCOFF_EXPORT (0400) - /* Symbol has been processed by xcoff_build_ldsyms. */ -#define XCOFF_BUILT_LDSYM (01000) - /* Symbol is mentioned by a section which was not garbage collected. */ -#define XCOFF_MARK (02000) - /* Symbol size is recorded in size_list list from hash table. */ -#define XCOFF_HAS_SIZE (04000) - /* Symbol is a function descriptor. */ -#define XCOFF_DESCRIPTOR (010000) - /* Multiple definitions have been for the symbol. */ -#define XCOFF_MULTIPLY_DEFINED (020000) - - /* The storage mapping class. */ - unsigned char smclas; -}; - -/* The XCOFF linker hash table. */ - -struct xcoff_link_hash_table { - struct bfd_link_hash_table root; - - /* The .debug string hash table. We need to compute this while - reading the input files, so that we know how large the .debug - section will be before we assign section positions. */ - struct bfd_strtab_hash *debug_strtab; - - /* The .debug section we will use for the final output. */ - asection *debug_section; - - /* The .loader section we will use for the final output. */ - asection *loader_section; - - /* A count of non TOC relative relocs which will need to be - allocated in the .loader section. */ - size_t ldrel_count; - - /* The .loader section header. */ - struct internal_ldhdr ldhdr; - - /* The .gl section we use to hold global linkage code. */ - asection *linkage_section; - - /* The .tc section we use to hold toc entries we build for global - linkage code. */ - asection *toc_section; - - /* The .ds section we use to hold function descriptors which we - create for exported symbols. */ - asection *descriptor_section; - - /* The list of import files. */ - struct xcoff_import_file *imports; - - /* Required alignment of sections within the output file. */ - unsigned long file_align; - - /* Whether the .text section must be read-only. */ - boolean textro; - - /* Whether garbage collection was done. */ - boolean gc; - - /* A linked list of symbols for which we have size information. */ - struct xcoff_link_size_list { - struct xcoff_link_size_list *next; - struct xcoff_link_hash_entry *h; - bfd_size_type size; - } *size_list; - - /* Magic sections: _text, _etext, _data, _edata, _end, end. */ - asection *special_sections[6]; -}; - -/* Information we keep for each section in the output file during the - final link phase. */ - -struct xcoff_link_section_info { - /* The relocs to be output. */ - struct internal_reloc *relocs; - /* For each reloc against a global symbol whose index was not known - when the reloc was handled, the global hash table entry. */ - struct xcoff_link_hash_entry **rel_hashes; - /* If there is a TOC relative reloc against a global symbol, and the - index of the TOC symbol is not known when the reloc was handled, - an entry is added to this linked list. This is not an array, - like rel_hashes, because this case is quite uncommon. */ - struct xcoff_toc_rel_hash { - struct xcoff_toc_rel_hash *next; - struct xcoff_link_hash_entry *h; - struct internal_reloc *rel; - } *toc_rel_hashes; -}; - -/* Information that we pass around while doing the final link step. */ - -struct xcoff_final_link_info { - /* General link information. */ - struct bfd_link_info *info; - /* Output BFD. */ - bfd *output_bfd; - /* Hash table for long symbol names. */ - struct bfd_strtab_hash *strtab; - /* Array of information kept for each output section, indexed by the - target_index field. */ - struct xcoff_link_section_info *section_info; - /* Symbol index of last C_FILE symbol (-1 if none). */ - long last_file_index; - /* Contents of last C_FILE symbol. */ - struct internal_syment last_file; - /* Symbol index of TOC symbol. */ - long toc_symindx; - /* Start of .loader symbols. */ - struct external_ldsym *ldsym; - /* Next .loader reloc to swap out. */ - struct external_ldrel *ldrel; - /* File position of start of line numbers. */ - file_ptr line_filepos; - /* Buffer large enough to hold swapped symbols of any input file. */ - struct internal_syment *internal_syms; - /* Buffer large enough to hold output indices of symbols of any - input file. */ - long *sym_indices; - /* Buffer large enough to hold output symbols for any input file. */ - bfd_byte *outsyms; - /* Buffer large enough to hold external line numbers for any input - section. */ - bfd_byte *linenos; - /* Buffer large enough to hold any input section. */ - bfd_byte *contents; - /* Buffer large enough to hold external relocs of any input section. */ - bfd_byte *external_relocs; -}; - -static void xcoff_swap_ldhdr_in - PARAMS ((bfd *, const struct external_ldhdr *, struct internal_ldhdr *)); -static void xcoff_swap_ldhdr_out - PARAMS ((bfd *, const struct internal_ldhdr *, struct external_ldhdr *)); -static void xcoff_swap_ldsym_in - PARAMS ((bfd *, const struct external_ldsym *, struct internal_ldsym *)); -static void xcoff_swap_ldsym_out - PARAMS ((bfd *, const struct internal_ldsym *, struct external_ldsym *)); -static void xcoff_swap_ldrel_in - PARAMS ((bfd *, const struct external_ldrel *, struct internal_ldrel *)); -static void xcoff_swap_ldrel_out - PARAMS ((bfd *, const struct internal_ldrel *, struct external_ldrel *)); -static struct bfd_hash_entry *xcoff_link_hash_newfunc - PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); -static boolean xcoff_get_section_contents PARAMS ((bfd *, asection *)); -static struct internal_reloc *xcoff_read_internal_relocs - PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean, - struct internal_reloc *)); -static boolean xcoff_link_add_object_symbols - PARAMS ((bfd *, struct bfd_link_info *)); -static boolean xcoff_link_check_archive_element - PARAMS ((bfd *, struct bfd_link_info *, boolean *)); -static boolean xcoff_link_check_ar_symbols - PARAMS ((bfd *, struct bfd_link_info *, boolean *)); -static boolean xcoff_link_check_dynamic_ar_symbols - PARAMS ((bfd *, struct bfd_link_info *, boolean *)); -static bfd_size_type xcoff_find_reloc - PARAMS ((struct internal_reloc *, bfd_size_type, bfd_vma)); -static boolean xcoff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *)); -static boolean xcoff_link_add_dynamic_symbols - PARAMS ((bfd *, struct bfd_link_info *)); -static boolean xcoff_mark_symbol - PARAMS ((struct bfd_link_info *, struct xcoff_link_hash_entry *)); -static boolean xcoff_mark PARAMS ((struct bfd_link_info *, asection *)); -static void xcoff_sweep PARAMS ((struct bfd_link_info *)); -static boolean xcoff_build_ldsyms - PARAMS ((struct xcoff_link_hash_entry *, PTR)); -static boolean xcoff_link_input_bfd - PARAMS ((struct xcoff_final_link_info *, bfd *)); -static boolean xcoff_write_global_symbol - PARAMS ((struct xcoff_link_hash_entry *, PTR)); -static boolean xcoff_reloc_link_order - PARAMS ((bfd *, struct xcoff_final_link_info *, asection *, - struct bfd_link_order *)); -static int xcoff_sort_relocs PARAMS ((const PTR, const PTR)); - -/* Routines to swap information in the XCOFF .loader section. If we - ever need to write an XCOFF loader, this stuff will need to be - moved to another file shared by the linker (which XCOFF calls the - ``binder'') and the loader. */ - -/* Swap in the ldhdr structure. */ - -static void -xcoff_swap_ldhdr_in (abfd, src, dst) - bfd *abfd; - const struct external_ldhdr *src; - struct internal_ldhdr *dst; -{ - dst->l_version = bfd_get_32 (abfd, src->l_version); - dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms); - dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc); - dst->l_istlen = bfd_get_32 (abfd, src->l_istlen); - dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid); - dst->l_impoff = bfd_get_32 (abfd, src->l_impoff); - dst->l_stlen = bfd_get_32 (abfd, src->l_stlen); - dst->l_stoff = bfd_get_32 (abfd, src->l_stoff); -} - -/* Swap out the ldhdr structure. */ - -static void -xcoff_swap_ldhdr_out (abfd, src, dst) - bfd *abfd; - const struct internal_ldhdr *src; - struct external_ldhdr *dst; -{ - bfd_put_32 (abfd, src->l_version, dst->l_version); - bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms); - bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc); - bfd_put_32 (abfd, src->l_istlen, dst->l_istlen); - bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid); - bfd_put_32 (abfd, src->l_impoff, dst->l_impoff); - bfd_put_32 (abfd, src->l_stlen, dst->l_stlen); - bfd_put_32 (abfd, src->l_stoff, dst->l_stoff); -} - -/* Swap in the ldsym structure. */ - -static void -xcoff_swap_ldsym_in (abfd, src, dst) - bfd *abfd; - const struct external_ldsym *src; - struct internal_ldsym *dst; -{ - if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0) - memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN); - else - { - dst->_l._l_l._l_zeroes = 0; - dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset); - } - dst->l_value = bfd_get_32 (abfd, src->l_value); - dst->l_scnum = bfd_get_16 (abfd, src->l_scnum); - dst->l_smtype = bfd_get_8 (abfd, src->l_smtype); - dst->l_smclas = bfd_get_8 (abfd, src->l_smclas); - dst->l_ifile = bfd_get_32 (abfd, src->l_ifile); - dst->l_parm = bfd_get_32 (abfd, src->l_parm); -} - -/* Swap out the ldsym structure. */ - -static void -xcoff_swap_ldsym_out (abfd, src, dst) - bfd *abfd; - const struct internal_ldsym *src; - struct external_ldsym *dst; -{ - if (src->_l._l_l._l_zeroes != 0) - memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN); - else - { - bfd_put_32 (abfd, 0, dst->_l._l_l._l_zeroes); - bfd_put_32 (abfd, src->_l._l_l._l_offset, dst->_l._l_l._l_offset); - } - bfd_put_32 (abfd, src->l_value, dst->l_value); - bfd_put_16 (abfd, src->l_scnum, dst->l_scnum); - bfd_put_8 (abfd, src->l_smtype, dst->l_smtype); - bfd_put_8 (abfd, src->l_smclas, dst->l_smclas); - bfd_put_32 (abfd, src->l_ifile, dst->l_ifile); - bfd_put_32 (abfd, src->l_parm, dst->l_parm); -} - -/* Swap in the ldrel structure. */ - -static void -xcoff_swap_ldrel_in (abfd, src, dst) - bfd *abfd; - const struct external_ldrel *src; - struct internal_ldrel *dst; -{ - dst->l_vaddr = bfd_get_32 (abfd, src->l_vaddr); - dst->l_symndx = bfd_get_32 (abfd, src->l_symndx); - dst->l_rtype = bfd_get_16 (abfd, src->l_rtype); - dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm); -} - -/* Swap out the ldrel structure. */ - -static void -xcoff_swap_ldrel_out (abfd, src, dst) - bfd *abfd; - const struct internal_ldrel *src; - struct external_ldrel *dst; -{ - bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr); - bfd_put_32 (abfd, src->l_symndx, dst->l_symndx); - bfd_put_16 (abfd, src->l_rtype, dst->l_rtype); - bfd_put_16 (abfd, src->l_rsecnm, dst->l_rsecnm); -} - -/* Routines to read XCOFF dynamic information. This don't really - belong here, but we already have the ldsym manipulation routines - here. */ - -/* Read the contents of a section. */ - -static boolean -xcoff_get_section_contents (abfd, sec) - bfd *abfd; - asection *sec; -{ - if (coff_section_data (abfd, sec) == NULL) - { - sec->used_by_bfd = bfd_zalloc (abfd, - sizeof (struct coff_section_tdata)); - if (sec->used_by_bfd == NULL) - return false; - } - - if (coff_section_data (abfd, sec)->contents == NULL) - { - coff_section_data (abfd, sec)->contents = - (bfd_byte *) bfd_malloc (sec->_raw_size); - if (coff_section_data (abfd, sec)->contents == NULL) - return false; - - if (! bfd_get_section_contents (abfd, sec, - coff_section_data (abfd, sec)->contents, - (file_ptr) 0, sec->_raw_size)) - return false; - } - - return true; -} - -/* Get the size required to hold the dynamic symbols. */ - -long -_bfd_xcoff_get_dynamic_symtab_upper_bound (abfd) - bfd *abfd; -{ - asection *lsec; - bfd_byte *contents; - struct internal_ldhdr ldhdr; - - if ((abfd->flags & DYNAMIC) == 0) - { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - bfd_set_error (bfd_error_no_symbols); - return -1; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return -1; - contents = coff_section_data (abfd, lsec)->contents; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); - - return (ldhdr.l_nsyms + 1) * sizeof (asymbol *); -} - -/* Get the dynamic symbols. */ - -long -_bfd_xcoff_canonicalize_dynamic_symtab (abfd, psyms) - bfd *abfd; - asymbol **psyms; -{ - asection *lsec; - bfd_byte *contents; - struct internal_ldhdr ldhdr; - const char *strings; - struct external_ldsym *elsym, *elsymend; - coff_symbol_type *symbuf; - - if ((abfd->flags & DYNAMIC) == 0) - { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - bfd_set_error (bfd_error_no_symbols); - return -1; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return -1; - contents = coff_section_data (abfd, lsec)->contents; - - coff_section_data (abfd, lsec)->keep_contents = true; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); - - strings = (char *) contents + ldhdr.l_stoff; - - symbuf = ((coff_symbol_type *) - bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (coff_symbol_type))); - if (symbuf == NULL) - return -1; - - elsym = (struct external_ldsym *) (contents + LDHDRSZ); - elsymend = elsym + ldhdr.l_nsyms; - for (; elsym < elsymend; elsym++, symbuf++, psyms++) - { - struct internal_ldsym ldsym; - - xcoff_swap_ldsym_in (abfd, elsym, &ldsym); - - symbuf->symbol.the_bfd = abfd; - - if (ldsym._l._l_l._l_zeroes == 0) - symbuf->symbol.name = strings + ldsym._l._l_l._l_offset; - else - { - int i; - - for (i = 0; i < SYMNMLEN; i++) - if (ldsym._l._l_name[i] == '\0') - break; - if (i < SYMNMLEN) - symbuf->symbol.name = (char *) elsym->_l._l_name; - else - { - char *c; - - c = bfd_alloc (abfd, SYMNMLEN + 1); - if (c == NULL) - return -1; - memcpy (c, ldsym._l._l_name, SYMNMLEN); - c[SYMNMLEN] = '\0'; - symbuf->symbol.name = c; - } - } - - if (ldsym.l_smclas == XMC_XO) - symbuf->symbol.section = bfd_abs_section_ptr; - else - symbuf->symbol.section = coff_section_from_bfd_index (abfd, - ldsym.l_scnum); - symbuf->symbol.value = ldsym.l_value - symbuf->symbol.section->vma; - - symbuf->symbol.flags = BSF_NO_FLAGS; - if ((ldsym.l_smtype & L_EXPORT) != 0) - symbuf->symbol.flags |= BSF_GLOBAL; - - /* FIXME: We have no way to record the other information stored - with the loader symbol. */ - - *psyms = (asymbol *) symbuf; - } - - *psyms = NULL; - - return ldhdr.l_nsyms; -} - -/* Get the size required to hold the dynamic relocs. */ - -long -_bfd_xcoff_get_dynamic_reloc_upper_bound (abfd) - bfd *abfd; -{ - asection *lsec; - bfd_byte *contents; - struct internal_ldhdr ldhdr; - - if ((abfd->flags & DYNAMIC) == 0) - { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - bfd_set_error (bfd_error_no_symbols); - return -1; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return -1; - contents = coff_section_data (abfd, lsec)->contents; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); - - return (ldhdr.l_nreloc + 1) * sizeof (arelent *); -} - -/* The typical dynamic reloc. */ - -static reloc_howto_type xcoff_dynamic_reloc = - HOWTO (0, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_POS", /* name */ - true, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false); /* pcrel_offset */ - -/* Get the dynamic relocs. */ - -long -_bfd_xcoff_canonicalize_dynamic_reloc (abfd, prelocs, syms) - bfd *abfd; - arelent **prelocs; - asymbol **syms; -{ - asection *lsec; - bfd_byte *contents; - struct internal_ldhdr ldhdr; - arelent *relbuf; - struct external_ldrel *elrel, *elrelend; - - if ((abfd->flags & DYNAMIC) == 0) - { - bfd_set_error (bfd_error_invalid_operation); - return -1; - } - - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - bfd_set_error (bfd_error_no_symbols); - return -1; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return -1; - contents = coff_section_data (abfd, lsec)->contents; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) contents, &ldhdr); - - relbuf = (arelent *) bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent)); - if (relbuf == NULL) - return -1; - - elrel = ((struct external_ldrel *) - (contents + LDHDRSZ + ldhdr.l_nsyms * LDSYMSZ)); - elrelend = elrel + ldhdr.l_nreloc; - for (; elrel < elrelend; elrel++, relbuf++, prelocs++) - { - struct internal_ldrel ldrel; - - xcoff_swap_ldrel_in (abfd, elrel, &ldrel); - - if (ldrel.l_symndx >= 3) - relbuf->sym_ptr_ptr = syms + (ldrel.l_symndx - 3); - else - { - const char *name; - asection *sec; - - switch (ldrel.l_symndx) - { - case 0: - name = ".text"; - break; - case 1: - name = ".data"; - break; - case 2: - name = ".bss"; - break; - default: - abort (); - break; - } - - sec = bfd_get_section_by_name (abfd, name); - if (sec == NULL) - { - bfd_set_error (bfd_error_bad_value); - return -1; - } - - relbuf->sym_ptr_ptr = sec->symbol_ptr_ptr; - } - - relbuf->address = ldrel.l_vaddr; - relbuf->addend = 0; - - /* Most dynamic relocs have the same type. FIXME: This is only - correct if ldrel.l_rtype == 0. In other cases, we should use - a different howto. */ - relbuf->howto = &xcoff_dynamic_reloc; - - /* FIXME: We have no way to record the l_rsecnm field. */ - - *prelocs = relbuf; - } - - *prelocs = NULL; - - return ldhdr.l_nreloc; -} - -/* Routine to create an entry in an XCOFF link hash table. */ - -static struct bfd_hash_entry * -xcoff_link_hash_newfunc (entry, table, string) - struct bfd_hash_entry *entry; - struct bfd_hash_table *table; - const char *string; -{ - struct xcoff_link_hash_entry *ret = (struct xcoff_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (ret == (struct xcoff_link_hash_entry *) NULL) - ret = ((struct xcoff_link_hash_entry *) - bfd_hash_allocate (table, sizeof (struct xcoff_link_hash_entry))); - if (ret == (struct xcoff_link_hash_entry *) NULL) - return (struct bfd_hash_entry *) ret; - - /* Call the allocation method of the superclass. */ - ret = ((struct xcoff_link_hash_entry *) - _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - if (ret != NULL) - { - /* Set local fields. */ - ret->indx = -1; - ret->toc_section = NULL; - ret->u.toc_indx = -1; - ret->descriptor = NULL; - ret->ldsym = NULL; - ret->ldindx = -1; - ret->flags = 0; - ret->smclas = XMC_UA; - } - - return (struct bfd_hash_entry *) ret; -} - -/* Create a XCOFF link hash table. */ - -struct bfd_link_hash_table * -_bfd_xcoff_bfd_link_hash_table_create (abfd) - bfd *abfd; -{ - struct xcoff_link_hash_table *ret; - - ret = ((struct xcoff_link_hash_table *) - bfd_alloc (abfd, sizeof (struct xcoff_link_hash_table))); - if (ret == (struct xcoff_link_hash_table *) NULL) - return (struct bfd_link_hash_table *) NULL; - if (! _bfd_link_hash_table_init (&ret->root, abfd, xcoff_link_hash_newfunc)) - { - bfd_release (abfd, ret); - return (struct bfd_link_hash_table *) NULL; - } - - ret->debug_strtab = _bfd_xcoff_stringtab_init (); - ret->debug_section = NULL; - ret->loader_section = NULL; - ret->ldrel_count = 0; - memset (&ret->ldhdr, 0, sizeof (struct internal_ldhdr)); - ret->linkage_section = NULL; - ret->toc_section = NULL; - ret->descriptor_section = NULL; - ret->imports = NULL; - ret->file_align = 0; - ret->textro = false; - ret->gc = false; - memset (ret->special_sections, 0, sizeof ret->special_sections); - - /* The linker will always generate a full a.out header. We need to - record that fact now, before the sizeof_headers routine could be - called. */ - xcoff_data (abfd)->full_aouthdr = true; - - return &ret->root; -} - -/* Look up an entry in an XCOFF link hash table. */ - -#define xcoff_link_hash_lookup(table, string, create, copy, follow) \ - ((struct xcoff_link_hash_entry *) \ - bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\ - (follow))) - -/* Traverse an XCOFF link hash table. */ - -#define xcoff_link_hash_traverse(table, func, info) \ - (bfd_link_hash_traverse \ - (&(table)->root, \ - (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ - (info))) - -/* Get the XCOFF link hash table from the info structure. This is - just a cast. */ - -#define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash)) - -/* Read internal relocs for an XCOFF csect. This is a wrapper around - _bfd_coff_read_internal_relocs which tries to take advantage of any - relocs which may have been cached for the enclosing section. */ - -static struct internal_reloc * -xcoff_read_internal_relocs (abfd, sec, cache, external_relocs, - require_internal, internal_relocs) - bfd *abfd; - asection *sec; - boolean cache; - bfd_byte *external_relocs; - boolean require_internal; - struct internal_reloc *internal_relocs; -{ - if (coff_section_data (abfd, sec) != NULL - && coff_section_data (abfd, sec)->relocs == NULL - && xcoff_section_data (abfd, sec) != NULL) - { - asection *enclosing; - - enclosing = xcoff_section_data (abfd, sec)->enclosing; - - if (enclosing != NULL - && (coff_section_data (abfd, enclosing) == NULL - || coff_section_data (abfd, enclosing)->relocs == NULL) - && cache - && enclosing->reloc_count > 0) - { - if (_bfd_coff_read_internal_relocs (abfd, enclosing, true, - external_relocs, false, - (struct internal_reloc *) NULL) - == NULL) - return NULL; - } - - if (enclosing != NULL - && coff_section_data (abfd, enclosing) != NULL - && coff_section_data (abfd, enclosing)->relocs != NULL) - { - size_t off; - - off = ((sec->rel_filepos - enclosing->rel_filepos) - / bfd_coff_relsz (abfd)); - if (! require_internal) - return coff_section_data (abfd, enclosing)->relocs + off; - memcpy (internal_relocs, - coff_section_data (abfd, enclosing)->relocs + off, - sec->reloc_count * sizeof (struct internal_reloc)); - return internal_relocs; - } - } - - return _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, - require_internal, internal_relocs); -} - -/* Given an XCOFF BFD, add symbols to the global hash table as - appropriate. */ - -boolean -_bfd_xcoff_bfd_link_add_symbols (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - switch (bfd_get_format (abfd)) - { - case bfd_object: - return xcoff_link_add_object_symbols (abfd, info); - - case bfd_archive: - /* If the archive has a map, do the usual search. We then need - to check the archive for stripped dynamic objects, because - they will not appear in the archive map even though they - should, perhaps, be included. If the archive has no map, we - just consider each object file in turn, since that apparently - is what the AIX native linker does. */ - if (bfd_has_map (abfd)) - { - if (! (_bfd_generic_link_add_archive_symbols - (abfd, info, xcoff_link_check_archive_element))) - return false; - } - - { - bfd *member; - - member = bfd_openr_next_archived_file (abfd, (bfd *) NULL); - while (member != NULL) - { - if (bfd_check_format (member, bfd_object) - && (! bfd_has_map (abfd) - || ((member->flags & DYNAMIC) != 0 - && (member->flags & HAS_SYMS) == 0))) - { - boolean needed; - - if (! xcoff_link_check_archive_element (member, info, &needed)) - return false; - if (needed) - member->archive_pass = -1; - } - member = bfd_openr_next_archived_file (abfd, member); - } - } - - return true; - - default: - bfd_set_error (bfd_error_wrong_format); - return false; - } -} - -/* Add symbols from an XCOFF object file. */ - -static boolean -xcoff_link_add_object_symbols (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - if (! _bfd_coff_get_external_symbols (abfd)) - return false; - if (! xcoff_link_add_symbols (abfd, info)) - return false; - if (! info->keep_memory) - { - if (! _bfd_coff_free_symbols (abfd)) - return false; - } - return true; -} - -/* Check a single archive element to see if we need to include it in - the link. *PNEEDED is set according to whether this element is - needed in the link or not. This is called via - _bfd_generic_link_add_archive_symbols. */ - -static boolean -xcoff_link_check_archive_element (abfd, info, pneeded) - bfd *abfd; - struct bfd_link_info *info; - boolean *pneeded; -{ - if (! _bfd_coff_get_external_symbols (abfd)) - return false; - - if (! xcoff_link_check_ar_symbols (abfd, info, pneeded)) - return false; - - if (*pneeded) - { - if (! xcoff_link_add_symbols (abfd, info)) - return false; - } - - if (! info->keep_memory || ! *pneeded) - { - if (! _bfd_coff_free_symbols (abfd)) - return false; - } - - return true; -} - -/* Look through the symbols to see if this object file should be - included in the link. */ - -static boolean -xcoff_link_check_ar_symbols (abfd, info, pneeded) - bfd *abfd; - struct bfd_link_info *info; - boolean *pneeded; -{ - bfd_size_type symesz; - bfd_byte *esym; - bfd_byte *esym_end; - - *pneeded = false; - - if ((abfd->flags & DYNAMIC) != 0 - && ! info->static_link - && info->hash->creator == abfd->xvec) - return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded); - - symesz = bfd_coff_symesz (abfd); - esym = (bfd_byte *) obj_coff_external_syms (abfd); - esym_end = esym + obj_raw_syment_count (abfd) * symesz; - while (esym < esym_end) - { - struct internal_syment sym; - - bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); - - if (sym.n_sclass == C_EXT && sym.n_scnum != N_UNDEF) - { - const char *name; - char buf[SYMNMLEN + 1]; - struct bfd_link_hash_entry *h; - - /* This symbol is externally visible, and is defined by this - object file. */ - - name = _bfd_coff_internal_syment_name (abfd, &sym, buf); - if (name == NULL) - return false; - h = bfd_link_hash_lookup (info->hash, name, false, false, true); - - /* We are only interested in symbols that are currently - undefined. If a symbol is currently known to be common, - XCOFF linkers do not bring in an object file which - defines it. We also don't bring in symbols to satisfy - undefined references in shared objects. */ - if (h != (struct bfd_link_hash_entry *) NULL - && h->type == bfd_link_hash_undefined - && (info->hash->creator != abfd->xvec - || (((struct xcoff_link_hash_entry *) h)->flags - & XCOFF_DEF_DYNAMIC) == 0)) - { - if (! (*info->callbacks->add_archive_element) (info, abfd, name)) - return false; - *pneeded = true; - return true; - } - } - - esym += (sym.n_numaux + 1) * symesz; - } - - /* We do not need this object file. */ - return true; -} - -/* Look through the loader symbols to see if this dynamic object - should be included in the link. The native linker uses the loader - symbols, not the normal symbol table, so we do too. */ - -static boolean -xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded) - bfd *abfd; - struct bfd_link_info *info; - boolean *pneeded; -{ - asection *lsec; - bfd_byte *buf; - struct internal_ldhdr ldhdr; - const char *strings; - struct external_ldsym *elsym, *elsymend; - - *pneeded = false; - - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - /* There are no symbols, so don't try to include it. */ - return true; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return false; - buf = coff_section_data (abfd, lsec)->contents; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) buf, &ldhdr); - - strings = (char *) buf + ldhdr.l_stoff; - - elsym = (struct external_ldsym *) (buf + LDHDRSZ); - elsymend = elsym + ldhdr.l_nsyms; - for (; elsym < elsymend; elsym++) - { - struct internal_ldsym ldsym; - char nambuf[SYMNMLEN + 1]; - const char *name; - struct bfd_link_hash_entry *h; - - xcoff_swap_ldsym_in (abfd, elsym, &ldsym); - - /* We are only interested in exported symbols. */ - if ((ldsym.l_smtype & L_EXPORT) == 0) - continue; - - if (ldsym._l._l_l._l_zeroes == 0) - name = strings + ldsym._l._l_l._l_offset; - else - { - memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); - nambuf[SYMNMLEN] = '\0'; - name = nambuf; - } - - h = bfd_link_hash_lookup (info->hash, name, false, false, true); - - /* We are only interested in symbols that are currently - undefined. At this point we know that we are using an XCOFF - hash table. */ - if (h != NULL - && h->type == bfd_link_hash_undefined - && (((struct xcoff_link_hash_entry *) h)->flags - & XCOFF_DEF_DYNAMIC) == 0) - { - if (! (*info->callbacks->add_archive_element) (info, abfd, name)) - return false; - *pneeded = true; - return true; - } - } - - /* We do not need this shared object. */ - - if (buf != NULL && ! coff_section_data (abfd, lsec)->keep_contents) - { - free (coff_section_data (abfd, lsec)->contents); - coff_section_data (abfd, lsec)->contents = NULL; - } - - return true; -} - -/* Returns the index of reloc in RELOCS with the least address greater - than or equal to ADDRESS. The relocs are sorted by address. */ - -static bfd_size_type -xcoff_find_reloc (relocs, count, address) - struct internal_reloc *relocs; - bfd_size_type count; - bfd_vma address; -{ - bfd_size_type min, max, this; - - if (count < 2) - { - if (count == 1 && relocs[0].r_vaddr < address) - return 1; - else - return 0; - } - - min = 0; - max = count; - - /* Do a binary search over (min,max]. */ - while (min + 1 < max) - { - bfd_vma raddr; - - this = (max + min) / 2; - raddr = relocs[this].r_vaddr; - if (raddr > address) - max = this; - else if (raddr < address) - min = this; - else - { - min = this; - break; - } - } - - if (relocs[min].r_vaddr < address) - return min + 1; - - while (min > 0 - && relocs[min - 1].r_vaddr == address) - --min; - - return min; -} - -/* Add all the symbols from an object file to the hash table. - - XCOFF is a weird format. A normal XCOFF .o files will have three - COFF sections--.text, .data, and .bss--but each COFF section will - contain many csects. These csects are described in the symbol - table. From the linker's point of view, each csect must be - considered a section in its own right. For example, a TOC entry is - handled as a small XMC_TC csect. The linker must be able to merge - different TOC entries together, which means that it must be able to - extract the XMC_TC csects from the .data section of the input .o - file. - - From the point of view of our linker, this is, of course, a hideous - nightmare. We cope by actually creating sections for each csect, - and discarding the original sections. We then have to handle the - relocation entries carefully, since the only way to tell which - csect they belong to is to examine the address. */ - -static boolean -xcoff_link_add_symbols (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - unsigned int n_tmask; - unsigned int n_btshft; - boolean default_copy; - bfd_size_type symcount; - struct xcoff_link_hash_entry **sym_hash; - asection **csect_cache; - bfd_size_type linesz; - asection *o; - asection *last_real; - boolean keep_syms; - asection *csect; - unsigned int csect_index; - asection *first_csect; - bfd_size_type symesz; - bfd_byte *esym; - bfd_byte *esym_end; - struct reloc_info_struct - { - struct internal_reloc *relocs; - asection **csects; - bfd_byte *linenos; - } *reloc_info = NULL; - - keep_syms = obj_coff_keep_syms (abfd); - - if ((abfd->flags & DYNAMIC) != 0 - && ! info->static_link) - { - if (! xcoff_link_add_dynamic_symbols (abfd, info)) - return false; - } - - if (info->hash->creator == abfd->xvec) - { - /* We need to build a .loader section, so we do it here. This - won't work if we're producing an XCOFF output file with no - XCOFF input files. FIXME. */ - if (xcoff_hash_table (info)->loader_section == NULL) - { - asection *lsec; - - lsec = bfd_make_section_anyway (abfd, ".loader"); - if (lsec == NULL) - goto error_return; - xcoff_hash_table (info)->loader_section = lsec; - lsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY; - } - /* Likewise for the linkage section. */ - if (xcoff_hash_table (info)->linkage_section == NULL) - { - asection *lsec; - - lsec = bfd_make_section_anyway (abfd, ".gl"); - if (lsec == NULL) - goto error_return; - xcoff_hash_table (info)->linkage_section = lsec; - lsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY); - lsec->alignment_power = 2; - } - /* Likewise for the TOC section. */ - if (xcoff_hash_table (info)->toc_section == NULL) - { - asection *tsec; - - tsec = bfd_make_section_anyway (abfd, ".tc"); - if (tsec == NULL) - goto error_return; - xcoff_hash_table (info)->toc_section = tsec; - tsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY); - tsec->alignment_power = 2; - } - /* Likewise for the descriptor section. */ - if (xcoff_hash_table (info)->descriptor_section == NULL) - { - asection *dsec; - - dsec = bfd_make_section_anyway (abfd, ".ds"); - if (dsec == NULL) - goto error_return; - xcoff_hash_table (info)->descriptor_section = dsec; - dsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY); - dsec->alignment_power = 2; - } - /* Likewise for the .debug section. */ - if (xcoff_hash_table (info)->debug_section == NULL - && info->strip != strip_all) - { - asection *dsec; - - dsec = bfd_make_section_anyway (abfd, ".debug"); - if (dsec == NULL) - goto error_return; - xcoff_hash_table (info)->debug_section = dsec; - dsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY; - } - } - - if ((abfd->flags & DYNAMIC) != 0 - && ! info->static_link) - return true; - - n_tmask = coff_data (abfd)->local_n_tmask; - n_btshft = coff_data (abfd)->local_n_btshft; - - /* Define macros so that ISFCN, et. al., macros work correctly. */ -#define N_TMASK n_tmask -#define N_BTSHFT n_btshft - - if (info->keep_memory) - default_copy = false; - else - default_copy = true; - - symcount = obj_raw_syment_count (abfd); - - /* We keep a list of the linker hash table entries that correspond - to each external symbol. */ - sym_hash = ((struct xcoff_link_hash_entry **) - bfd_alloc (abfd, - (symcount - * sizeof (struct xcoff_link_hash_entry *)))); - if (sym_hash == NULL && symcount != 0) - goto error_return; - coff_data (abfd)->sym_hashes = (struct coff_link_hash_entry **) sym_hash; - memset (sym_hash, 0, - (size_t) symcount * sizeof (struct xcoff_link_hash_entry *)); - - /* Because of the weird stuff we are doing with XCOFF csects, we can - not easily determine which section a symbol is in, so we store - the information in the tdata for the input file. */ - csect_cache = ((asection **) - bfd_alloc (abfd, symcount * sizeof (asection *))); - if (csect_cache == NULL && symcount != 0) - goto error_return; - xcoff_data (abfd)->csects = csect_cache; - memset (csect_cache, 0, (size_t) symcount * sizeof (asection *)); - - /* While splitting sections into csects, we need to assign the - relocs correctly. The relocs and the csects must both be in - order by VMA within a given section, so we handle this by - scanning along the relocs as we process the csects. We index - into reloc_info using the section target_index. */ - reloc_info = ((struct reloc_info_struct *) - bfd_malloc ((abfd->section_count + 1) - * sizeof (struct reloc_info_struct))); - if (reloc_info == NULL) - goto error_return; - memset ((PTR) reloc_info, 0, - (abfd->section_count + 1) * sizeof (struct reloc_info_struct)); - - /* Read in the relocs and line numbers for each section. */ - linesz = bfd_coff_linesz (abfd); - last_real = NULL; - for (o = abfd->sections; o != NULL; o = o->next) - { - last_real = o; - if ((o->flags & SEC_RELOC) != 0) - { - reloc_info[o->target_index].relocs = - xcoff_read_internal_relocs (abfd, o, true, (bfd_byte *) NULL, - false, (struct internal_reloc *) NULL); - reloc_info[o->target_index].csects = - (asection **) bfd_malloc (o->reloc_count * sizeof (asection *)); - if (reloc_info[o->target_index].csects == NULL) - goto error_return; - memset (reloc_info[o->target_index].csects, 0, - o->reloc_count * sizeof (asection *)); - } - - if ((info->strip == strip_none || info->strip == strip_some) - && o->lineno_count > 0) - { - bfd_byte *linenos; - - linenos = (bfd_byte *) bfd_malloc (o->lineno_count * linesz); - if (linenos == NULL) - goto error_return; - reloc_info[o->target_index].linenos = linenos; - if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0 - || (bfd_read (linenos, linesz, o->lineno_count, abfd) - != linesz * o->lineno_count)) - goto error_return; - } - } - - /* Don't let the linker relocation routines discard the symbols. */ - obj_coff_keep_syms (abfd) = true; - - csect = NULL; - csect_index = 0; - first_csect = NULL; - - symesz = bfd_coff_symesz (abfd); - BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); - esym = (bfd_byte *) obj_coff_external_syms (abfd); - esym_end = esym + symcount * symesz; - while (esym < esym_end) - { - struct internal_syment sym; - union internal_auxent aux; - const char *name; - char buf[SYMNMLEN + 1]; - int smtyp; - flagword flags; - asection *section; - bfd_vma value; - struct xcoff_link_hash_entry *set_toc; - - bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); - - /* In this pass we are only interested in symbols with csect - information. */ - if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT) - { - if (sym.n_sclass == C_FILE && csect != NULL) - { - xcoff_section_data (abfd, csect)->last_symndx = - ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz); - csect = NULL; - } - - if (csect != NULL) - *csect_cache = csect; - else if (first_csect == NULL || sym.n_sclass == C_FILE) - *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum); - else - *csect_cache = NULL; - esym += (sym.n_numaux + 1) * symesz; - sym_hash += sym.n_numaux + 1; - csect_cache += sym.n_numaux + 1; - continue; - } - - name = _bfd_coff_internal_syment_name (abfd, &sym, buf); - if (name == NULL) - goto error_return; - - /* If this symbol has line number information attached to it, - and we're not stripping it, count the number of entries and - add them to the count for this csect. In the final link pass - we are going to attach line number information by symbol, - rather than by section, in order to more easily handle - garbage collection. */ - if ((info->strip == strip_none || info->strip == strip_some) - && sym.n_numaux > 1 - && csect != NULL - && ISFCN (sym.n_type)) - { - union internal_auxent auxlin; - - bfd_coff_swap_aux_in (abfd, (PTR) (esym + symesz), - sym.n_type, sym.n_sclass, - 0, sym.n_numaux, (PTR) &auxlin); - if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) - { - asection *enclosing; - bfd_size_type linoff; - - enclosing = xcoff_section_data (abfd, csect)->enclosing; - if (enclosing == NULL) - { - (*_bfd_error_handler) - (_("%s: `%s' has line numbers but no enclosing section"), - bfd_get_filename (abfd), name); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr - - enclosing->line_filepos); - if (linoff < enclosing->lineno_count * linesz) - { - struct internal_lineno lin; - bfd_byte *linpstart; - - linpstart = (reloc_info[enclosing->target_index].linenos - + linoff); - bfd_coff_swap_lineno_in (abfd, (PTR) linpstart, (PTR) &lin); - if (lin.l_lnno == 0 - && ((bfd_size_type) lin.l_addr.l_symndx - == ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz))) - { - bfd_byte *linpend, *linp; - - linpend = (reloc_info[enclosing->target_index].linenos - + enclosing->lineno_count * linesz); - for (linp = linpstart + linesz; - linp < linpend; - linp += linesz) - { - bfd_coff_swap_lineno_in (abfd, (PTR) linp, - (PTR) &lin); - if (lin.l_lnno == 0) - break; - } - csect->lineno_count += (linp - linpstart) / linesz; - /* The setting of line_filepos will only be - useful if all the line number entries for a - csect are contiguous; this only matters for - error reporting. */ - if (csect->line_filepos == 0) - csect->line_filepos = - auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr; - } - } - } - } - - /* Pick up the csect auxiliary information. */ - - if (sym.n_numaux == 0) - { - (*_bfd_error_handler) - (_("%s: class %d symbol `%s' has no aux entries"), - bfd_get_filename (abfd), sym.n_sclass, name); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - bfd_coff_swap_aux_in (abfd, - (PTR) (esym + symesz * sym.n_numaux), - sym.n_type, sym.n_sclass, - sym.n_numaux - 1, sym.n_numaux, - (PTR) &aux); - - smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); - - flags = BSF_GLOBAL; - section = NULL; - value = 0; - set_toc = NULL; - - switch (smtyp) - { - default: - (*_bfd_error_handler) - (_("%s: symbol `%s' has unrecognized csect type %d"), - bfd_get_filename (abfd), name, smtyp); - bfd_set_error (bfd_error_bad_value); - goto error_return; - - case XTY_ER: - /* This is an external reference. */ - if (sym.n_sclass == C_HIDEXT - || sym.n_scnum != N_UNDEF - || aux.x_csect.x_scnlen.l != 0) - { - (*_bfd_error_handler) - (_("%s: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"), - bfd_get_filename (abfd), name, sym.n_sclass, sym.n_scnum, - aux.x_csect.x_scnlen.l); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - /* An XMC_XO external reference is actually a reference to - an absolute location. */ - if (aux.x_csect.x_smclas != XMC_XO) - section = bfd_und_section_ptr; - else - { - section = bfd_abs_section_ptr; - value = sym.n_value; - } - break; - - case XTY_SD: - /* This is a csect definition. */ - - if (csect != NULL) - { - xcoff_section_data (abfd, csect)->last_symndx = - ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz); - } - - csect = NULL; - csect_index = -1; - - /* When we see a TOC anchor, we record the TOC value. */ - if (aux.x_csect.x_smclas == XMC_TC0) - { - if (sym.n_sclass != C_HIDEXT - || aux.x_csect.x_scnlen.l != 0) - { - (*_bfd_error_handler) - (_("%s: XMC_TC0 symbol `%s' is class %d scnlen %d"), - bfd_get_filename (abfd), name, sym.n_sclass, - aux.x_csect.x_scnlen.l); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - xcoff_data (abfd)->toc = sym.n_value; - } - - /* We must merge TOC entries for the same symbol. We can - merge two TOC entries if they are both C_HIDEXT, they - both have the same name, they are both 4 bytes long, and - they both have a relocation table entry for an external - symbol with the same name. Unfortunately, this means - that we must look through the relocations. Ick. */ - if (aux.x_csect.x_smclas == XMC_TC - && sym.n_sclass == C_HIDEXT - && aux.x_csect.x_scnlen.l == 4 - && info->hash->creator == abfd->xvec) - { - asection *enclosing; - struct internal_reloc *relocs; - bfd_size_type relindx; - struct internal_reloc *rel; - - enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); - if (enclosing == NULL) - goto error_return; - - relocs = reloc_info[enclosing->target_index].relocs; - relindx = xcoff_find_reloc (relocs, enclosing->reloc_count, - sym.n_value); - rel = relocs + relindx; - if (relindx < enclosing->reloc_count - && rel->r_vaddr == (bfd_vma) sym.n_value - && rel->r_size == 31 - && rel->r_type == R_POS) - { - bfd_byte *erelsym; - struct internal_syment relsym; - - erelsym = ((bfd_byte *) obj_coff_external_syms (abfd) - + rel->r_symndx * symesz); - bfd_coff_swap_sym_in (abfd, (PTR) erelsym, (PTR) &relsym); - if (relsym.n_sclass == C_EXT) - { - const char *relname; - char relbuf[SYMNMLEN + 1]; - boolean copy; - struct xcoff_link_hash_entry *h; - - /* At this point we know that the TOC entry is - for an externally visible symbol. */ - relname = _bfd_coff_internal_syment_name (abfd, &relsym, - relbuf); - if (relname == NULL) - goto error_return; - - /* We only merge TOC entries if the TC name is - the same as the symbol name. This handles - the normal case, but not common cases like - SYM.P4 which gcc generates to store SYM + 4 - in the TOC. FIXME. */ - if (strcmp (name, relname) == 0) - { - copy = (! info->keep_memory - || relsym._n._n_n._n_zeroes != 0 - || relsym._n._n_n._n_offset == 0); - h = xcoff_link_hash_lookup (xcoff_hash_table (info), - relname, true, copy, - false); - if (h == NULL) - goto error_return; - - /* At this point h->root.type could be - bfd_link_hash_new. That should be OK, - since we know for sure that we will come - across this symbol as we step through the - file. */ - - /* We store h in *sym_hash for the - convenience of the relocate_section - function. */ - *sym_hash = h; - - if (h->toc_section != NULL) - { - asection **rel_csects; - - /* We already have a TOC entry for this - symbol, so we can just ignore this - one. */ - rel_csects = - reloc_info[enclosing->target_index].csects; - rel_csects[relindx] = bfd_und_section_ptr; - break; - } - - /* We are about to create a TOC entry for - this symbol. */ - set_toc = h; - } - } - } - } - - /* We need to create a new section. We get the name from - the csect storage mapping class, so that the linker can - accumulate similar csects together. */ - { - static const char *csect_name_by_class[] = { - ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", - ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0", - ".td" - }; - const char *csect_name; - asection *enclosing; - - if ((aux.x_csect.x_smclas >= - sizeof csect_name_by_class / sizeof csect_name_by_class[0]) - || csect_name_by_class[aux.x_csect.x_smclas] == NULL) - { - (*_bfd_error_handler) - (_("%s: symbol `%s' has unrecognized smclas %d"), - bfd_get_filename (abfd), name, aux.x_csect.x_smclas); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - csect_name = csect_name_by_class[aux.x_csect.x_smclas]; - csect = bfd_make_section_anyway (abfd, csect_name); - if (csect == NULL) - goto error_return; - enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum); - if (enclosing == NULL) - goto error_return; - if (! bfd_is_abs_section (enclosing) - && ((bfd_vma) sym.n_value < enclosing->vma - || ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l - > enclosing->vma + enclosing->_raw_size))) - { - (*_bfd_error_handler) - (_("%s: csect `%s' not in enclosing section"), - bfd_get_filename (abfd), name); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - csect->vma = sym.n_value; - csect->filepos = (enclosing->filepos - + sym.n_value - - enclosing->vma); - csect->_raw_size = aux.x_csect.x_scnlen.l; - csect->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS; - csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); - - /* Record the enclosing section in the tdata for this new - section. */ - csect->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); - if (csect->used_by_bfd == NULL) - goto error_return; - coff_section_data (abfd, csect)->tdata = - bfd_zalloc (abfd, sizeof (struct xcoff_section_tdata)); - if (coff_section_data (abfd, csect)->tdata == NULL) - goto error_return; - xcoff_section_data (abfd, csect)->enclosing = enclosing; - xcoff_section_data (abfd, csect)->lineno_count = - enclosing->lineno_count; - - if (enclosing->owner == abfd) - { - struct internal_reloc *relocs; - bfd_size_type relindx; - struct internal_reloc *rel; - asection **rel_csect; - - relocs = reloc_info[enclosing->target_index].relocs; - relindx = xcoff_find_reloc (relocs, enclosing->reloc_count, - csect->vma); - rel = relocs + relindx; - rel_csect = (reloc_info[enclosing->target_index].csects - + relindx); - csect->rel_filepos = (enclosing->rel_filepos - + relindx * bfd_coff_relsz (abfd)); - while (relindx < enclosing->reloc_count - && *rel_csect == NULL - && rel->r_vaddr < csect->vma + csect->_raw_size) - { - *rel_csect = csect; - csect->flags |= SEC_RELOC; - ++csect->reloc_count; - ++relindx; - ++rel; - ++rel_csect; - } - } - - /* There are a number of other fields and section flags - which we do not bother to set. */ - - csect_index = ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz); - - xcoff_section_data (abfd, csect)->first_symndx = csect_index; - - if (first_csect == NULL) - first_csect = csect; - - /* If this symbol is C_EXT, we treat it as starting at the - beginning of the newly created section. */ - if (sym.n_sclass == C_EXT) - { - section = csect; - value = 0; - } - - /* If this is a TOC section for a symbol, record it. */ - if (set_toc != NULL) - set_toc->toc_section = csect; - } - break; - - case XTY_LD: - /* This is a label definition. The x_scnlen field is the - symbol index of the csect. I believe that this must - always follow the appropriate XTY_SD symbol, so I will - insist on it. */ - { - boolean bad; - - bad = false; - if (aux.x_csect.x_scnlen.l < 0 - || (aux.x_csect.x_scnlen.l - >= esym - (bfd_byte *) obj_coff_external_syms (abfd))) - bad = true; - if (! bad) - { - section = xcoff_data (abfd)->csects[aux.x_csect.x_scnlen.l]; - if (section == NULL - || (section->flags & SEC_HAS_CONTENTS) == 0) - bad = true; - } - if (bad) - { - (*_bfd_error_handler) - (_("%s: misplaced XTY_LD `%s'"), - bfd_get_filename (abfd), name); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - value = sym.n_value - csect->vma; - } - break; - - case XTY_CM: - /* This is an unitialized csect. We could base the name on - the storage mapping class, but we don't bother except for - an XMC_TD symbol. If this csect is externally visible, - it is a common symbol. We put XMC_TD symbols in sections - named .tocbss, and rely on the linker script to put that - in the TOC area. */ - - if (csect != NULL) - { - xcoff_section_data (abfd, csect)->last_symndx = - ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz); - } - - if (aux.x_csect.x_smclas == XMC_TD) - csect = bfd_make_section_anyway (abfd, ".tocbss"); - else - csect = bfd_make_section_anyway (abfd, ".bss"); - if (csect == NULL) - goto error_return; - csect->vma = sym.n_value; - csect->_raw_size = aux.x_csect.x_scnlen.l; - csect->flags |= SEC_ALLOC; - csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp); - /* There are a number of other fields and section flags - which we do not bother to set. */ - - csect_index = ((esym - - (bfd_byte *) obj_coff_external_syms (abfd)) - / symesz); - - csect->used_by_bfd = - (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata)); - if (csect->used_by_bfd == NULL) - goto error_return; - coff_section_data (abfd, csect)->tdata = - bfd_zalloc (abfd, sizeof (struct xcoff_section_tdata)); - if (coff_section_data (abfd, csect)->tdata == NULL) - goto error_return; - xcoff_section_data (abfd, csect)->first_symndx = csect_index; - - if (first_csect == NULL) - first_csect = csect; - - if (sym.n_sclass == C_EXT) - { - csect->flags |= SEC_IS_COMMON; - csect->_raw_size = 0; - section = csect; - value = aux.x_csect.x_scnlen.l; - } - - break; - } - - /* Check for magic symbol names. */ - if ((smtyp == XTY_SD || smtyp == XTY_CM) - && aux.x_csect.x_smclas != XMC_TC - && aux.x_csect.x_smclas != XMC_TD) - { - int i; - - i = -1; - if (name[0] == '_') - { - if (strcmp (name, "_text") == 0) - i = 0; - else if (strcmp (name, "_etext") == 0) - i = 1; - else if (strcmp (name, "_data") == 0) - i = 2; - else if (strcmp (name, "_edata") == 0) - i = 3; - else if (strcmp (name, "_end") == 0) - i = 4; - } - else if (name[0] == 'e' && strcmp (name, "end") == 0) - i = 5; - - if (i != -1) - xcoff_hash_table (info)->special_sections[i] = csect; - } - - /* Now we have enough information to add the symbol to the - linker hash table. */ - - if (sym.n_sclass == C_EXT) - { - boolean copy; - - BFD_ASSERT (section != NULL); - - /* We must copy the name into memory if we got it from the - syment itself, rather than the string table. */ - copy = default_copy; - if (sym._n._n_n._n_zeroes != 0 - || sym._n._n_n._n_offset == 0) - copy = true; - - /* The AIX linker appears to only detect multiple symbol - definitions when there is a reference to the symbol. If - a symbol is defined multiple times, and the only - references are from the same object file, the AIX linker - appears to permit it. It does not merge the different - definitions, but handles them independently. On the - other hand, if there is a reference, the linker reports - an error. - - This matters because the AIX <net/net_globals.h> header - file actually defines an initialized array, so we have to - actually permit that to work. - - Just to make matters even more confusing, the AIX linker - appears to permit multiple symbol definitions whenever - the second definition is in an archive rather than an - object file. This may be a consequence of the manner in - which it handles archives: I think it may load the entire - archive in as separate csects, and then let garbage - collection discard symbols. - - We also have to handle the case of statically linking a - shared object, which will cause symbol redefinitions, - although this is an easier case to detect. */ - - if (info->hash->creator == abfd->xvec) - { - if (! bfd_is_und_section (section)) - *sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info), - name, true, copy, false); - else - *sym_hash = ((struct xcoff_link_hash_entry *) - bfd_wrapped_link_hash_lookup (abfd, info, name, - true, copy, false)); - if (*sym_hash == NULL) - goto error_return; - if (((*sym_hash)->root.type == bfd_link_hash_defined - || (*sym_hash)->root.type == bfd_link_hash_defweak) - && ! bfd_is_und_section (section) - && ! bfd_is_com_section (section)) - { - /* This is a second definition of a defined symbol. */ - if ((abfd->flags & DYNAMIC) != 0 - && ((*sym_hash)->smclas != XMC_GL - || aux.x_csect.x_smclas == XMC_GL - || ((*sym_hash)->root.u.def.section->owner->flags - & DYNAMIC) == 0)) - { - /* The new symbol is from a shared library, and - either the existing symbol is not global - linkage code or this symbol is global linkage - code. If the existing symbol is global - linkage code and the new symbol is not, then - we want to use the new symbol. */ - section = bfd_und_section_ptr; - value = 0; - } - else if (((*sym_hash)->root.u.def.section->owner->flags - & DYNAMIC) != 0) - { - /* The existing symbol is from a shared library. - Replace it. */ - (*sym_hash)->root.type = bfd_link_hash_undefined; - (*sym_hash)->root.u.undef.abfd = - (*sym_hash)->root.u.def.section->owner; - } - else if (abfd->my_archive != NULL) - { - /* This is a redefinition in an object contained - in an archive. Just ignore it. See the - comment above. */ - section = bfd_und_section_ptr; - value = 0; - } - else if ((*sym_hash)->root.next != NULL - || info->hash->undefs_tail == &(*sym_hash)->root) - { - /* This symbol has been referenced. In this - case, we just continue and permit the - multiple definition error. See the comment - above about the behaviour of the AIX linker. */ - } - else if ((*sym_hash)->smclas == aux.x_csect.x_smclas) - { - /* The symbols are both csects of the same - class. There is at least a chance that this - is a semi-legitimate redefinition. */ - section = bfd_und_section_ptr; - value = 0; - (*sym_hash)->flags |= XCOFF_MULTIPLY_DEFINED; - } - } - else if (((*sym_hash)->flags & XCOFF_MULTIPLY_DEFINED) != 0 - && ((*sym_hash)->root.type == bfd_link_hash_defined - || (*sym_hash)->root.type == bfd_link_hash_defweak) - && (bfd_is_und_section (section) - || bfd_is_com_section (section))) - { - /* This is a reference to a multiply defined symbol. - Report the error now. See the comment above - about the behaviour of the AIX linker. We could - also do this with warning symbols, but I'm not - sure the XCOFF linker is wholly prepared to - handle them, and that would only be a warning, - not an error. */ - if (! ((*info->callbacks->multiple_definition) - (info, (*sym_hash)->root.root.string, - (bfd *) NULL, (asection *) NULL, 0, - (*sym_hash)->root.u.def.section->owner, - (*sym_hash)->root.u.def.section, - (*sym_hash)->root.u.def.value))) - goto error_return; - /* Try not to give this error too many times. */ - (*sym_hash)->flags &= ~XCOFF_MULTIPLY_DEFINED; - } - } - - /* _bfd_generic_link_add_one_symbol may call the linker to - generate an error message, and the linker may try to read - the symbol table to give a good error. Right now, the - line numbers are in an inconsistent state, since they are - counted both in the real sections and in the new csects. - We need to leave the count in the real sections so that - the linker can report the line number of the error - correctly, so temporarily clobber the link to the csects - so that the linker will not try to read the line numbers - a second time from the csects. */ - BFD_ASSERT (last_real->next == first_csect); - last_real->next = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, name, flags, section, value, - (const char *) NULL, copy, true, - (struct bfd_link_hash_entry **) sym_hash))) - goto error_return; - last_real->next = first_csect; - - if (smtyp == XTY_CM) - { - if ((*sym_hash)->root.type != bfd_link_hash_common - || (*sym_hash)->root.u.c.p->section != csect) - { - /* We don't need the common csect we just created. */ - csect->_raw_size = 0; - } - else - { - (*sym_hash)->root.u.c.p->alignment_power - = csect->alignment_power; - } - } - - if (info->hash->creator == abfd->xvec) - { - int flag; - - if (smtyp == XTY_ER || smtyp == XTY_CM) - flag = XCOFF_REF_REGULAR; - else - flag = XCOFF_DEF_REGULAR; - (*sym_hash)->flags |= flag; - - if ((*sym_hash)->smclas == XMC_UA - || flag == XCOFF_DEF_REGULAR) - (*sym_hash)->smclas = aux.x_csect.x_smclas; - } - } - - *csect_cache = csect; - - esym += (sym.n_numaux + 1) * symesz; - sym_hash += sym.n_numaux + 1; - csect_cache += sym.n_numaux + 1; - } - - BFD_ASSERT (last_real == NULL || last_real->next == first_csect); - - /* Make sure that we have seen all the relocs. */ - for (o = abfd->sections; o != first_csect; o = o->next) - { - /* Reset the section size and the line number count, since the - data is now attached to the csects. Don't reset the size of - the .debug section, since we need to read it below in - bfd_xcoff_size_dynamic_sections. */ - if (strcmp (bfd_get_section_name (abfd, o), ".debug") != 0) - o->_raw_size = 0; - o->lineno_count = 0; - - if ((o->flags & SEC_RELOC) != 0) - { - bfd_size_type i; - struct internal_reloc *rel; - asection **rel_csect; - - rel = reloc_info[o->target_index].relocs; - rel_csect = reloc_info[o->target_index].csects; - for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++) - { - if (*rel_csect == NULL) - { - (*_bfd_error_handler) - (_("%s: reloc %s:%d not in csect"), - bfd_get_filename (abfd), o->name, i); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - /* We identify all symbols which are called, so that we - can create glue code for calls to functions imported - from dynamic objects. */ - if (info->hash->creator == abfd->xvec - && *rel_csect != bfd_und_section_ptr - && (rel->r_type == R_BR - || rel->r_type == R_RBR) - && obj_xcoff_sym_hashes (abfd)[rel->r_symndx] != NULL) - { - struct xcoff_link_hash_entry *h; - - h = obj_xcoff_sym_hashes (abfd)[rel->r_symndx]; - h->flags |= XCOFF_CALLED; - /* If the symbol name starts with a period, it is - the code of a function. If the symbol is - currently undefined, then add an undefined symbol - for the function descriptor. This should do no - harm, because any regular object that defines the - function should also define the function - descriptor. It helps, because it means that we - will identify the function descriptor with a - dynamic object if a dynamic object defines it. */ - if (h->root.root.string[0] == '.' - && h->descriptor == NULL) - { - struct xcoff_link_hash_entry *hds; - - hds = xcoff_link_hash_lookup (xcoff_hash_table (info), - h->root.root.string + 1, - true, false, true); - if (hds == NULL) - goto error_return; - if (hds->root.type == bfd_link_hash_new) - { - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, hds->root.root.string, - (flagword) 0, bfd_und_section_ptr, - (bfd_vma) 0, (const char *) NULL, false, - true, - (struct bfd_link_hash_entry **) &hds))) - goto error_return; - } - hds->flags |= XCOFF_DESCRIPTOR; - BFD_ASSERT ((hds->flags & XCOFF_CALLED) == 0 - && (h->flags & XCOFF_DESCRIPTOR) == 0); - hds->descriptor = h; - h->descriptor = hds; - } - } - } - - free (reloc_info[o->target_index].csects); - reloc_info[o->target_index].csects = NULL; - - /* Reset SEC_RELOC and the reloc_count, since the reloc - information is now attached to the csects. */ - o->flags &= ~SEC_RELOC; - o->reloc_count = 0; - - /* If we are not keeping memory, free the reloc information. */ - if (! info->keep_memory - && coff_section_data (abfd, o) != NULL - && coff_section_data (abfd, o)->relocs != NULL - && ! coff_section_data (abfd, o)->keep_relocs) - { - free (coff_section_data (abfd, o)->relocs); - coff_section_data (abfd, o)->relocs = NULL; - } - } - - /* Free up the line numbers. FIXME: We could cache these - somewhere for the final link, to avoid reading them again. */ - if (reloc_info[o->target_index].linenos != NULL) - { - free (reloc_info[o->target_index].linenos); - reloc_info[o->target_index].linenos = NULL; - } - } - - free (reloc_info); - - obj_coff_keep_syms (abfd) = keep_syms; - - return true; - - error_return: - if (reloc_info != NULL) - { - for (o = abfd->sections; o != NULL; o = o->next) - { - if (reloc_info[o->target_index].csects != NULL) - free (reloc_info[o->target_index].csects); - if (reloc_info[o->target_index].linenos != NULL) - free (reloc_info[o->target_index].linenos); - } - free (reloc_info); - } - obj_coff_keep_syms (abfd) = keep_syms; - return false; -} - -#undef N_TMASK -#undef N_BTSHFT - -/* This function is used to add symbols from a dynamic object to the - global symbol table. */ - -static boolean -xcoff_link_add_dynamic_symbols (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - asection *lsec; - bfd_byte *buf; - struct internal_ldhdr ldhdr; - const char *strings; - struct external_ldsym *elsym, *elsymend; - struct xcoff_import_file *n; - const char *bname; - const char *mname; - const char *s; - unsigned int c; - struct xcoff_import_file **pp; - - /* We can only handle a dynamic object if we are generating an XCOFF - output file. */ - if (info->hash->creator != abfd->xvec) - { - (*_bfd_error_handler) - (_("%s: XCOFF shared object when not producing XCOFF output"), - bfd_get_filename (abfd)); - bfd_set_error (bfd_error_invalid_operation); - return false; - } - - /* The symbols we use from a dynamic object are not the symbols in - the normal symbol table, but, rather, the symbols in the export - table. If there is a global symbol in a dynamic object which is - not in the export table, the loader will not be able to find it, - so we don't want to find it either. Also, on AIX 4.1.3, shr.o in - libc.a has symbols in the export table which are not in the - symbol table. */ - - /* Read in the .loader section. FIXME: We should really use the - o_snloader field in the a.out header, rather than grabbing the - section by name. */ - lsec = bfd_get_section_by_name (abfd, ".loader"); - if (lsec == NULL) - { - (*_bfd_error_handler) - (_("%s: dynamic object with no .loader section"), - bfd_get_filename (abfd)); - bfd_set_error (bfd_error_no_symbols); - return false; - } - - if (! xcoff_get_section_contents (abfd, lsec)) - return false; - buf = coff_section_data (abfd, lsec)->contents; - - /* Remove the sections from this object, so that they do not get - included in the link. */ - abfd->sections = NULL; - - xcoff_swap_ldhdr_in (abfd, (struct external_ldhdr *) buf, &ldhdr); - - strings = (char *) buf + ldhdr.l_stoff; - - elsym = (struct external_ldsym *) (buf + LDHDRSZ); - elsymend = elsym + ldhdr.l_nsyms; - BFD_ASSERT (sizeof (struct external_ldsym) == LDSYMSZ); - for (; elsym < elsymend; elsym++) - { - struct internal_ldsym ldsym; - char nambuf[SYMNMLEN + 1]; - const char *name; - struct xcoff_link_hash_entry *h; - - xcoff_swap_ldsym_in (abfd, elsym, &ldsym); - - /* We are only interested in exported symbols. */ - if ((ldsym.l_smtype & L_EXPORT) == 0) - continue; - - if (ldsym._l._l_l._l_zeroes == 0) - name = strings + ldsym._l._l_l._l_offset; - else - { - memcpy (nambuf, ldsym._l._l_name, SYMNMLEN); - nambuf[SYMNMLEN] = '\0'; - name = nambuf; - } - - /* Normally we could not call xcoff_link_hash_lookup in an add - symbols routine, since we might not be using an XCOFF hash - table. However, we verified above that we are using an XCOFF - hash table. */ - - h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true, - true, true); - if (h == NULL) - return false; - - h->flags |= XCOFF_DEF_DYNAMIC; - - /* If the symbol is undefined, and the BFD it was found in is - not a dynamic object, change the BFD to this dynamic object, - so that we can get the correct import file ID. */ - if ((h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - && (h->root.u.undef.abfd == NULL - || (h->root.u.undef.abfd->flags & DYNAMIC) == 0)) - h->root.u.undef.abfd = abfd; - - if (h->root.type == bfd_link_hash_new) - { - h->root.type = bfd_link_hash_undefined; - h->root.u.undef.abfd = abfd; - /* We do not want to add this to the undefined symbol list. */ - } - - if (h->smclas == XMC_UA - || h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - h->smclas = ldsym.l_smclas; - - /* Unless this is an XMC_XO symbol, we don't bother to actually - define it, since we don't have a section to put it in anyhow. - Instead, the relocation routines handle the DEF_DYNAMIC flag - correctly. */ - - if (h->smclas == XMC_XO - && (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak)) - { - /* This symbol has an absolute value. */ - h->root.type = bfd_link_hash_defined; - h->root.u.def.section = bfd_abs_section_ptr; - h->root.u.def.value = ldsym.l_value; - } - - /* If this symbol defines a function descriptor, then it - implicitly defines the function code as well. */ - if (h->smclas == XMC_DS - || (h->smclas == XMC_XO && name[0] != '.')) - h->flags |= XCOFF_DESCRIPTOR; - if ((h->flags & XCOFF_DESCRIPTOR) != 0) - { - struct xcoff_link_hash_entry *hds; - - hds = h->descriptor; - if (hds == NULL) - { - char *dsnm; - - dsnm = bfd_malloc (strlen (name) + 2); - if (dsnm == NULL) - return false; - dsnm[0] = '.'; - strcpy (dsnm + 1, name); - hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm, - true, true, true); - free (dsnm); - if (hds == NULL) - return false; - - if (hds->root.type == bfd_link_hash_new) - { - hds->root.type = bfd_link_hash_undefined; - hds->root.u.undef.abfd = abfd; - /* We do not want to add this to the undefined - symbol list. */ - } - - hds->descriptor = h; - h->descriptor = hds; - } - - hds->flags |= XCOFF_DEF_DYNAMIC; - if (hds->smclas == XMC_UA) - hds->smclas = XMC_PR; - - /* An absolute symbol appears to actually define code, not a - function descriptor. This is how some math functions are - implemented on AIX 4.1. */ - if (h->smclas == XMC_XO - && (hds->root.type == bfd_link_hash_undefined - || hds->root.type == bfd_link_hash_undefweak)) - { - hds->smclas = XMC_XO; - hds->root.type = bfd_link_hash_defined; - hds->root.u.def.section = bfd_abs_section_ptr; - hds->root.u.def.value = ldsym.l_value; - } - } - } - - if (buf != NULL && ! coff_section_data (abfd, lsec)->keep_contents) - { - free (coff_section_data (abfd, lsec)->contents); - coff_section_data (abfd, lsec)->contents = NULL; - } - - /* Record this file in the import files. */ - - n = ((struct xcoff_import_file *) - bfd_alloc (abfd, sizeof (struct xcoff_import_file))); - if (n == NULL) - return false; - n->next = NULL; - - /* For some reason, the path entry in the import file list for a - shared object appears to always be empty. The file name is the - base name. */ - n->path = ""; - if (abfd->my_archive == NULL) - { - bname = bfd_get_filename (abfd); - mname = ""; - } - else - { - bname = bfd_get_filename (abfd->my_archive); - mname = bfd_get_filename (abfd); - } - s = strrchr (bname, '/'); - if (s != NULL) - bname = s + 1; - n->file = bname; - n->member = mname; - - /* We start c at 1 because the first import file number is reserved - for LIBPATH. */ - for (pp = &xcoff_hash_table (info)->imports, c = 1; - *pp != NULL; - pp = &(*pp)->next, ++c) - ; - *pp = n; - - xcoff_data (abfd)->import_file_id = c; - - return true; -} - -/* Routines that are called after all the input files have been - handled, but before the sections are laid out in memory. */ - -/* Mark a symbol as not being garbage, including the section in which - it is defined. */ - -static INLINE boolean -xcoff_mark_symbol (info, h) - struct bfd_link_info *info; - struct xcoff_link_hash_entry *h; -{ - if ((h->flags & XCOFF_MARK) != 0) - return true; - - h->flags |= XCOFF_MARK; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *hsec; - - hsec = h->root.u.def.section; - if (! bfd_is_abs_section (hsec) - && (hsec->flags & SEC_MARK) == 0) - { - if (! xcoff_mark (info, hsec)) - return false; - } - } - - if (h->toc_section != NULL - && (h->toc_section->flags & SEC_MARK) == 0) - { - if (! xcoff_mark (info, h->toc_section)) - return false; - } - - return true; -} - -/* The mark phase of garbage collection. For a given section, mark - it, and all the sections which define symbols to which it refers. - Because this function needs to look at the relocs, we also count - the number of relocs which need to be copied into the .loader - section. */ - -static boolean -xcoff_mark (info, sec) - struct bfd_link_info *info; - asection *sec; -{ - if (bfd_is_abs_section (sec) - || (sec->flags & SEC_MARK) != 0) - return true; - - sec->flags |= SEC_MARK; - - if (sec->owner->xvec == info->hash->creator - && coff_section_data (sec->owner, sec) != NULL - && xcoff_section_data (sec->owner, sec) != NULL) - { - register struct xcoff_link_hash_entry **hp, **hpend; - struct internal_reloc *rel, *relend; - - /* Mark all the symbols in this section. */ - - hp = (obj_xcoff_sym_hashes (sec->owner) - + xcoff_section_data (sec->owner, sec)->first_symndx); - hpend = (obj_xcoff_sym_hashes (sec->owner) - + xcoff_section_data (sec->owner, sec)->last_symndx); - for (; hp < hpend; hp++) - { - register struct xcoff_link_hash_entry *h; - - h = *hp; - if (h != NULL - && (h->flags & XCOFF_MARK) == 0) - { - if (! xcoff_mark_symbol (info, h)) - return false; - } - } - - /* Look through the section relocs. */ - - if ((sec->flags & SEC_RELOC) != 0 - && sec->reloc_count > 0) - { - rel = xcoff_read_internal_relocs (sec->owner, sec, true, - (bfd_byte *) NULL, false, - (struct internal_reloc *) NULL); - if (rel == NULL) - return false; - relend = rel + sec->reloc_count; - for (; rel < relend; rel++) - { - asection *rsec; - struct xcoff_link_hash_entry *h; - - if ((unsigned int) rel->r_symndx - > obj_raw_syment_count (sec->owner)) - continue; - - h = obj_xcoff_sym_hashes (sec->owner)[rel->r_symndx]; - if (h != NULL - && (h->flags & XCOFF_MARK) == 0) - { - if (! xcoff_mark_symbol (info, h)) - return false; - } - - rsec = xcoff_data (sec->owner)->csects[rel->r_symndx]; - if (rsec != NULL - && (rsec->flags & SEC_MARK) == 0) - { - if (! xcoff_mark (info, rsec)) - return false; - } - - /* See if this reloc needs to be copied into the .loader - section. */ - switch (rel->r_type) - { - default: - if (h == NULL - || h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak - || h->root.type == bfd_link_hash_common - || ((h->flags & XCOFF_CALLED) != 0 - && (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - && h->root.root.string[0] == '.' - && h->descriptor != NULL - && ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0 - || ((h->descriptor->flags & XCOFF_IMPORT) != 0 - && (h->descriptor->flags - & XCOFF_DEF_REGULAR) == 0)))) - break; - /* Fall through. */ - case R_POS: - case R_NEG: - case R_RL: - case R_RLA: - ++xcoff_hash_table (info)->ldrel_count; - if (h != NULL) - h->flags |= XCOFF_LDREL; - break; - case R_TOC: - case R_GL: - case R_TCL: - case R_TRL: - case R_TRLA: - /* We should never need a .loader reloc for a TOC - relative reloc. */ - break; - } - } - - if (! info->keep_memory - && coff_section_data (sec->owner, sec) != NULL - && coff_section_data (sec->owner, sec)->relocs != NULL - && ! coff_section_data (sec->owner, sec)->keep_relocs) - { - free (coff_section_data (sec->owner, sec)->relocs); - coff_section_data (sec->owner, sec)->relocs = NULL; - } - } - } - - return true; -} - -/* The sweep phase of garbage collection. Remove all garbage - sections. */ - -static void -xcoff_sweep (info) - struct bfd_link_info *info; -{ - bfd *sub; - - for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) - { - asection *o; - - for (o = sub->sections; o != NULL; o = o->next) - { - if ((o->flags & SEC_MARK) == 0) - { - /* Keep all sections from non-XCOFF input files. Keep - special sections. Keep .debug sections for the - moment. */ - if (sub->xvec != info->hash->creator - || o == xcoff_hash_table (info)->debug_section - || o == xcoff_hash_table (info)->loader_section - || o == xcoff_hash_table (info)->linkage_section - || o == xcoff_hash_table (info)->toc_section - || o == xcoff_hash_table (info)->descriptor_section - || strcmp (o->name, ".debug") == 0) - o->flags |= SEC_MARK; - else - { - o->_raw_size = 0; - o->reloc_count = 0; - o->lineno_count = 0; - } - } - } - } -} - -/* Record the number of elements in a set. This is used to output the - correct csect length. */ - -boolean -bfd_xcoff_link_record_set (output_bfd, info, harg, size) - bfd *output_bfd; - struct bfd_link_info *info; - struct bfd_link_hash_entry *harg; - bfd_size_type size; -{ - struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; - struct xcoff_link_size_list *n; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - return true; - - /* This will hardly ever be called. I don't want to burn four bytes - per global symbol, so instead the size is kept on a linked list - attached to the hash table. */ - - n = ((struct xcoff_link_size_list *) - bfd_alloc (output_bfd, sizeof (struct xcoff_link_size_list))); - if (n == NULL) - return false; - n->next = xcoff_hash_table (info)->size_list; - n->h = h; - n->size = size; - xcoff_hash_table (info)->size_list = n; - - h->flags |= XCOFF_HAS_SIZE; - - return true; -} - -/* Import a symbol. */ - -boolean -bfd_xcoff_import_symbol (output_bfd, info, harg, val, imppath, impfile, - impmember) - bfd *output_bfd; - struct bfd_link_info *info; - struct bfd_link_hash_entry *harg; - bfd_vma val; - const char *imppath; - const char *impfile; - const char *impmember; -{ - struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - return true; - - /* A symbol name which starts with a period is the code for a - function. If the symbol is undefined, then add an undefined - symbol for the function descriptor, and import that instead. */ - if (h->root.root.string[0] == '.' - && h->root.type == bfd_link_hash_undefined - && val == (bfd_vma) -1) - { - struct xcoff_link_hash_entry *hds; - - hds = h->descriptor; - if (hds == NULL) - { - hds = xcoff_link_hash_lookup (xcoff_hash_table (info), - h->root.root.string + 1, - true, false, true); - if (hds == NULL) - return false; - if (hds->root.type == bfd_link_hash_new) - { - hds->root.type = bfd_link_hash_undefined; - hds->root.u.undef.abfd = h->root.u.undef.abfd; - } - hds->flags |= XCOFF_DESCRIPTOR; - BFD_ASSERT ((hds->flags & XCOFF_CALLED) == 0 - && (h->flags & XCOFF_DESCRIPTOR) == 0); - hds->descriptor = h; - h->descriptor = hds; - } - - /* Now, if the descriptor is undefined, import the descriptor - rather than the symbol we were told to import. FIXME: Is - this correct in all cases? */ - if (hds->root.type == bfd_link_hash_undefined) - h = hds; - } - - h->flags |= XCOFF_IMPORT; - - if (val != (bfd_vma) -1) - { - if (h->root.type == bfd_link_hash_defined - && (! bfd_is_abs_section (h->root.u.def.section) - || h->root.u.def.value != val)) - { - if (! ((*info->callbacks->multiple_definition) - (info, h->root.root.string, h->root.u.def.section->owner, - h->root.u.def.section, h->root.u.def.value, - output_bfd, bfd_abs_section_ptr, val))) - return false; - } - - h->root.type = bfd_link_hash_defined; - h->root.u.def.section = bfd_abs_section_ptr; - h->root.u.def.value = val; - } - - /* We overload the ldindx field to hold the l_ifile value for this - symbol. */ - BFD_ASSERT (h->ldsym == NULL); - BFD_ASSERT ((h->flags & XCOFF_BUILT_LDSYM) == 0); - if (imppath == NULL) - h->ldindx = -1; - else - { - unsigned int c; - struct xcoff_import_file **pp; - - /* We start c at 1 because the first entry in the import list is - reserved for the library search path. */ - for (pp = &xcoff_hash_table (info)->imports, c = 1; - *pp != NULL; - pp = &(*pp)->next, ++c) - { - if (strcmp ((*pp)->path, imppath) == 0 - && strcmp ((*pp)->file, impfile) == 0 - && strcmp ((*pp)->member, impmember) == 0) - break; - } - - if (*pp == NULL) - { - struct xcoff_import_file *n; - - n = ((struct xcoff_import_file *) - bfd_alloc (output_bfd, sizeof (struct xcoff_import_file))); - if (n == NULL) - return false; - n->next = NULL; - n->path = imppath; - n->file = impfile; - n->member = impmember; - *pp = n; - } - - h->ldindx = c; - } - - return true; -} - -/* Export a symbol. */ - -boolean -bfd_xcoff_export_symbol (output_bfd, info, harg, syscall) - bfd *output_bfd; - struct bfd_link_info *info; - struct bfd_link_hash_entry *harg; - boolean syscall ATTRIBUTE_UNUSED; -{ - struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - return true; - - h->flags |= XCOFF_EXPORT; - - /* FIXME: I'm not at all sure what syscall is supposed to mean, so - I'm just going to ignore it until somebody explains it. */ - - /* See if this is a function descriptor. It may be one even though - it is not so marked. */ - if ((h->flags & XCOFF_DESCRIPTOR) == 0 - && h->root.root.string[0] != '.') - { - char *fnname; - struct xcoff_link_hash_entry *hfn; - - fnname = (char *) bfd_malloc (strlen (h->root.root.string) + 2); - if (fnname == NULL) - return false; - fnname[0] = '.'; - strcpy (fnname + 1, h->root.root.string); - hfn = xcoff_link_hash_lookup (xcoff_hash_table (info), - fnname, false, false, true); - free (fnname); - if (hfn != NULL - && hfn->smclas == XMC_PR - && (hfn->root.type == bfd_link_hash_defined - || hfn->root.type == bfd_link_hash_defweak)) - { - h->flags |= XCOFF_DESCRIPTOR; - h->descriptor = hfn; - hfn->descriptor = h; - } - } - - /* Make sure we don't garbage collect this symbol. */ - if (! xcoff_mark_symbol (info, h)) - return false; - - /* If this is a function descriptor, make sure we don't garbage - collect the associated function code. We normally don't have to - worry about this, because the descriptor will be attached to a - section with relocs, but if we are creating the descriptor - ourselves those relocs will not be visible to the mark code. */ - if ((h->flags & XCOFF_DESCRIPTOR) != 0) - { - if (! xcoff_mark_symbol (info, h->descriptor)) - return false; - } - - return true; -} - -/* Count a reloc against a symbol. This is called for relocs - generated by the linker script, typically for global constructors - and destructors. */ - -boolean -bfd_xcoff_link_count_reloc (output_bfd, info, name) - bfd *output_bfd; - struct bfd_link_info *info; - const char *name; -{ - struct xcoff_link_hash_entry *h; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - return true; - - h = ((struct xcoff_link_hash_entry *) - bfd_wrapped_link_hash_lookup (output_bfd, info, name, false, false, - false)); - if (h == NULL) - { - (*_bfd_error_handler) (_("%s: no such symbol"), name); - bfd_set_error (bfd_error_no_symbols); - return false; - } - - h->flags |= XCOFF_REF_REGULAR | XCOFF_LDREL; - ++xcoff_hash_table (info)->ldrel_count; - - /* Mark the symbol to avoid garbage collection. */ - if (! xcoff_mark_symbol (info, h)) - return false; - - return true; -} - -/* This function is called for each symbol to which the linker script - assigns a value. */ - -boolean -bfd_xcoff_record_link_assignment (output_bfd, info, name) - bfd *output_bfd; - struct bfd_link_info *info; - const char *name; -{ - struct xcoff_link_hash_entry *h; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - return true; - - h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true, true, - false); - if (h == NULL) - return false; - - h->flags |= XCOFF_DEF_REGULAR; - - return true; -} - -/* This structure is used to pass information through - xcoff_link_hash_traverse. */ - -struct xcoff_loader_info { - /* Set if a problem occurred. */ - boolean failed; - /* Output BFD. */ - bfd *output_bfd; - /* Link information structure. */ - struct bfd_link_info *info; - /* Whether all defined symbols should be exported. */ - boolean export_defineds; - /* Number of ldsym structures. */ - size_t ldsym_count; - /* Size of string table. */ - size_t string_size; - /* String table. */ - bfd_byte *strings; - /* Allocated size of string table. */ - size_t string_alc; -}; - -/* Build the .loader section. This is called by the XCOFF linker - emulation before_allocation routine. We must set the size of the - .loader section before the linker lays out the output file. - LIBPATH is the library path to search for shared objects; this is - normally built from the -L arguments passed to the linker. ENTRY - is the name of the entry point symbol (the -e linker option). - FILE_ALIGN is the alignment to use for sections within the file - (the -H linker option). MAXSTACK is the maximum stack size (the - -bmaxstack linker option). MAXDATA is the maximum data size (the - -bmaxdata linker option). GC is whether to do garbage collection - (the -bgc linker option). MODTYPE is the module type (the - -bmodtype linker option). TEXTRO is whether the text section must - be read only (the -btextro linker option). EXPORT_DEFINEDS is - whether all defined symbols should be exported (the -unix linker - option). SPECIAL_SECTIONS is set by this routine to csects with - magic names like _end. */ - -boolean -bfd_xcoff_size_dynamic_sections (output_bfd, info, libpath, entry, - file_align, maxstack, maxdata, gc, - modtype, textro, export_defineds, - special_sections) - bfd *output_bfd; - struct bfd_link_info *info; - const char *libpath; - const char *entry; - unsigned long file_align; - unsigned long maxstack; - unsigned long maxdata; - boolean gc; - int modtype; - boolean textro; - boolean export_defineds; - asection **special_sections; -{ - struct xcoff_link_hash_entry *hentry; - asection *lsec; - struct xcoff_loader_info ldinfo; - int i; - size_t impsize, impcount; - struct xcoff_import_file *fl; - struct internal_ldhdr *ldhdr; - bfd_size_type stoff; - register char *out; - asection *sec; - bfd *sub; - struct bfd_strtab_hash *debug_strtab; - bfd_byte *debug_contents = NULL; - - if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) - { - for (i = 0; i < 6; i++) - special_sections[i] = NULL; - return true; - } - - ldinfo.failed = false; - ldinfo.output_bfd = output_bfd; - ldinfo.info = info; - ldinfo.export_defineds = export_defineds; - ldinfo.ldsym_count = 0; - ldinfo.string_size = 0; - ldinfo.strings = NULL; - ldinfo.string_alc = 0; - - xcoff_data (output_bfd)->maxstack = maxstack; - xcoff_data (output_bfd)->maxdata = maxdata; - xcoff_data (output_bfd)->modtype = modtype; - - xcoff_hash_table (info)->file_align = file_align; - xcoff_hash_table (info)->textro = textro; - - if (entry == NULL) - hentry = NULL; - else - { - hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry, - false, false, true); - if (hentry != NULL) - hentry->flags |= XCOFF_ENTRY; - } - - /* Garbage collect unused sections. */ - if (info->relocateable - || ! gc - || hentry == NULL - || (hentry->root.type != bfd_link_hash_defined - && hentry->root.type != bfd_link_hash_defweak)) - { - gc = false; - xcoff_hash_table (info)->gc = false; - - /* We still need to call xcoff_mark, in order to set ldrel_count - correctly. */ - for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) - { - asection *o; - - for (o = sub->sections; o != NULL; o = o->next) - { - if ((o->flags & SEC_MARK) == 0) - { - if (! xcoff_mark (info, o)) - goto error_return; - } - } - } - } - else - { - if (! xcoff_mark (info, hentry->root.u.def.section)) - goto error_return; - xcoff_sweep (info); - xcoff_hash_table (info)->gc = true; - } - - /* Return special sections to the caller. */ - for (i = 0; i < 6; i++) - { - asection *sec; - - sec = xcoff_hash_table (info)->special_sections[i]; - if (sec != NULL - && gc - && (sec->flags & SEC_MARK) == 0) - sec = NULL; - special_sections[i] = sec; - } - - if (info->input_bfds == NULL) - { - /* I'm not sure what to do in this bizarre case. */ - return true; - } - - xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_build_ldsyms, - (PTR) &ldinfo); - if (ldinfo.failed) - goto error_return; - - /* Work out the size of the import file names. Each import file ID - consists of three null terminated strings: the path, the file - name, and the archive member name. The first entry in the list - of names is the path to use to find objects, which the linker has - passed in as the libpath argument. For some reason, the path - entry in the other import file names appears to always be empty. */ - impsize = strlen (libpath) + 3; - impcount = 1; - for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next) - { - ++impcount; - impsize += (strlen (fl->path) - + strlen (fl->file) - + strlen (fl->member) - + 3); - } - - /* Set up the .loader section header. */ - ldhdr = &xcoff_hash_table (info)->ldhdr; - ldhdr->l_version = 1; - ldhdr->l_nsyms = ldinfo.ldsym_count; - ldhdr->l_nreloc = xcoff_hash_table (info)->ldrel_count; - ldhdr->l_istlen = impsize; - ldhdr->l_nimpid = impcount; - ldhdr->l_impoff = (LDHDRSZ - + ldhdr->l_nsyms * LDSYMSZ - + ldhdr->l_nreloc * LDRELSZ); - ldhdr->l_stlen = ldinfo.string_size; - stoff = ldhdr->l_impoff + impsize; - if (ldinfo.string_size == 0) - ldhdr->l_stoff = 0; - else - ldhdr->l_stoff = stoff; - - /* We now know the final size of the .loader section. Allocate - space for it. */ - lsec = xcoff_hash_table (info)->loader_section; - lsec->_raw_size = stoff + ldhdr->l_stlen; - lsec->contents = (bfd_byte *) bfd_zalloc (output_bfd, lsec->_raw_size); - if (lsec->contents == NULL) - goto error_return; - - /* Set up the header. */ - xcoff_swap_ldhdr_out (output_bfd, ldhdr, - (struct external_ldhdr *) lsec->contents); - - /* Set up the import file names. */ - out = (char *) lsec->contents + ldhdr->l_impoff; - strcpy (out, libpath); - out += strlen (libpath) + 1; - *out++ = '\0'; - *out++ = '\0'; - for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next) - { - register const char *s; - - s = fl->path; - while ((*out++ = *s++) != '\0') - ; - s = fl->file; - while ((*out++ = *s++) != '\0') - ; - s = fl->member; - while ((*out++ = *s++) != '\0') - ; - } - - BFD_ASSERT ((bfd_size_type) ((bfd_byte *) out - lsec->contents) == stoff); - - /* Set up the symbol string table. */ - if (ldinfo.string_size > 0) - { - memcpy (out, ldinfo.strings, ldinfo.string_size); - free (ldinfo.strings); - ldinfo.strings = NULL; - } - - /* We can't set up the symbol table or the relocs yet, because we - don't yet know the final position of the various sections. The - .loader symbols are written out when the corresponding normal - symbols are written out in xcoff_link_input_bfd or - xcoff_write_global_symbol. The .loader relocs are written out - when the corresponding normal relocs are handled in - xcoff_link_input_bfd. */ - - /* Allocate space for the magic sections. */ - sec = xcoff_hash_table (info)->linkage_section; - if (sec->_raw_size > 0) - { - sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size); - if (sec->contents == NULL) - goto error_return; - } - sec = xcoff_hash_table (info)->toc_section; - if (sec->_raw_size > 0) - { - sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size); - if (sec->contents == NULL) - goto error_return; - } - sec = xcoff_hash_table (info)->descriptor_section; - if (sec->_raw_size > 0) - { - sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size); - if (sec->contents == NULL) - goto error_return; - } - - /* Now that we've done garbage collection, figure out the contents - of the .debug section. */ - debug_strtab = xcoff_hash_table (info)->debug_strtab; - - for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) - { - asection *subdeb; - bfd_size_type symcount; - unsigned long *debug_index; - asection **csectpp; - bfd_byte *esym, *esymend; - bfd_size_type symesz; - - if (sub->xvec != info->hash->creator) - continue; - subdeb = bfd_get_section_by_name (sub, ".debug"); - if (subdeb == NULL || subdeb->_raw_size == 0) - continue; - - if (info->strip == strip_all - || info->strip == strip_debugger - || info->discard == discard_all) - { - subdeb->_raw_size = 0; - continue; - } - - if (! _bfd_coff_get_external_symbols (sub)) - goto error_return; - - symcount = obj_raw_syment_count (sub); - debug_index = ((unsigned long *) - bfd_zalloc (sub, symcount * sizeof (unsigned long))); - if (debug_index == NULL) - goto error_return; - xcoff_data (sub)->debug_indices = debug_index; - - /* Grab the contents of the .debug section. We use malloc and - copy the names into the debug stringtab, rather than - bfd_alloc, because I expect that, when linking many files - together, many of the strings will be the same. Storing the - strings in the hash table should save space in this case. */ - debug_contents = (bfd_byte *) bfd_malloc (subdeb->_raw_size); - if (debug_contents == NULL) - goto error_return; - if (! bfd_get_section_contents (sub, subdeb, (PTR) debug_contents, - (file_ptr) 0, subdeb->_raw_size)) - goto error_return; - - csectpp = xcoff_data (sub)->csects; - - symesz = bfd_coff_symesz (sub); - esym = (bfd_byte *) obj_coff_external_syms (sub); - esymend = esym + symcount * symesz; - while (esym < esymend) - { - struct internal_syment sym; - - bfd_coff_swap_sym_in (sub, (PTR) esym, (PTR) &sym); - - *debug_index = (unsigned long) -1; - - if (sym._n._n_n._n_zeroes == 0 - && *csectpp != NULL - && (! gc - || ((*csectpp)->flags & SEC_MARK) != 0 - || *csectpp == bfd_abs_section_ptr) - && bfd_coff_symname_in_debug (sub, &sym)) - { - char *name; - bfd_size_type indx; - - name = (char *) debug_contents + sym._n._n_n._n_offset; - indx = _bfd_stringtab_add (debug_strtab, name, true, true); - if (indx == (bfd_size_type) -1) - goto error_return; - *debug_index = indx; - } - - esym += (sym.n_numaux + 1) * symesz; - csectpp += sym.n_numaux + 1; - debug_index += sym.n_numaux + 1; - } - - free (debug_contents); - debug_contents = NULL; - - /* Clear the size of subdeb, so that it is not included directly - in the output file. */ - subdeb->_raw_size = 0; - - if (! info->keep_memory) - { - if (! _bfd_coff_free_symbols (sub)) - goto error_return; - } - } - - if (info->strip != strip_all) - xcoff_hash_table (info)->debug_section->_raw_size = - _bfd_stringtab_size (debug_strtab); - - return true; - - error_return: - if (ldinfo.strings != NULL) - free (ldinfo.strings); - if (debug_contents != NULL) - free (debug_contents); - return false; -} - -/* Add a symbol to the .loader symbols, if necessary. */ - -static boolean -xcoff_build_ldsyms (h, p) - struct xcoff_link_hash_entry *h; - PTR p; -{ - struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p; - size_t len; - - /* If this is a final link, and the symbol was defined as a common - symbol in a regular object file, and there was no definition in - any dynamic object, then the linker will have allocated space for - the symbol in a common section but the XCOFF_DEF_REGULAR flag - will not have been set. */ - if (h->root.type == bfd_link_hash_defined - && (h->flags & XCOFF_DEF_REGULAR) == 0 - && (h->flags & XCOFF_REF_REGULAR) != 0 - && (h->flags & XCOFF_DEF_DYNAMIC) == 0 - && (bfd_is_abs_section (h->root.u.def.section) - || (h->root.u.def.section->owner->flags & DYNAMIC) == 0)) - h->flags |= XCOFF_DEF_REGULAR; - - /* If all defined symbols should be exported, mark them now. We - don't want to export the actual functions, just the function - descriptors. */ - if (ldinfo->export_defineds - && (h->flags & XCOFF_DEF_REGULAR) != 0 - && h->root.root.string[0] != '.') - { - boolean export; - - /* We don't export a symbol which is being defined by an object - included from an archive which contains a shared object. The - rationale is that if an archive contains both an unshared and - a shared object, then there must be some reason that the - unshared object is unshared, and we don't want to start - providing a shared version of it. In particular, this solves - a bug involving the _savefNN set of functions. gcc will call - those functions without providing a slot to restore the TOC, - so it is essential that these functions be linked in directly - and not from a shared object, which means that a shared - object which also happens to link them in must not export - them. This is confusing, but I haven't been able to think of - a different approach. Note that the symbols can, of course, - be exported explicitly. */ - export = true; - if ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && h->root.u.def.section->owner != NULL - && h->root.u.def.section->owner->my_archive != NULL) - { - bfd *arbfd, *member; - - arbfd = h->root.u.def.section->owner->my_archive; - member = bfd_openr_next_archived_file (arbfd, (bfd *) NULL); - while (member != NULL) - { - if ((member->flags & DYNAMIC) != 0) - { - export = false; - break; - } - member = bfd_openr_next_archived_file (arbfd, member); - } - } - - if (export) - h->flags |= XCOFF_EXPORT; - } - - /* We don't want to garbage collect symbols which are not defined in - XCOFF files. This is a convenient place to mark them. */ - if (xcoff_hash_table (ldinfo->info)->gc - && (h->flags & XCOFF_MARK) == 0 - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && (h->root.u.def.section->owner == NULL - || (h->root.u.def.section->owner->xvec - != ldinfo->info->hash->creator))) - h->flags |= XCOFF_MARK; - - /* If this symbol is called and defined in a dynamic object, or it - is imported, then we need to set up global linkage code for it. - (Unless we did garbage collection and we didn't need this - symbol.) */ - if ((h->flags & XCOFF_CALLED) != 0 - && (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - && h->root.root.string[0] == '.' - && h->descriptor != NULL - && ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0 - || ((h->descriptor->flags & XCOFF_IMPORT) != 0 - && (h->descriptor->flags & XCOFF_DEF_REGULAR) == 0)) - && (! xcoff_hash_table (ldinfo->info)->gc - || (h->flags & XCOFF_MARK) != 0)) - { - asection *sec; - struct xcoff_link_hash_entry *hds; - - sec = xcoff_hash_table (ldinfo->info)->linkage_section; - h->root.type = bfd_link_hash_defined; - h->root.u.def.section = sec; - h->root.u.def.value = sec->_raw_size; - h->smclas = XMC_GL; - h->flags |= XCOFF_DEF_REGULAR; - sec->_raw_size += XCOFF_GLINK_SIZE; - - /* The global linkage code requires a TOC entry for the - descriptor. */ - hds = h->descriptor; - BFD_ASSERT ((hds->root.type == bfd_link_hash_undefined - || hds->root.type == bfd_link_hash_undefweak) - && (hds->flags & XCOFF_DEF_REGULAR) == 0); - hds->flags |= XCOFF_MARK; - if (hds->toc_section == NULL) - { - hds->toc_section = xcoff_hash_table (ldinfo->info)->toc_section; - hds->u.toc_offset = hds->toc_section->_raw_size; - hds->toc_section->_raw_size += 4; - ++xcoff_hash_table (ldinfo->info)->ldrel_count; - ++hds->toc_section->reloc_count; - hds->indx = -2; - hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL; - - /* We need to call xcoff_build_ldsyms recursively here, - because we may already have passed hds on the traversal. */ - xcoff_build_ldsyms (hds, p); - } - } - - /* If this symbol is exported, but not defined, we need to try to - define it. */ - if ((h->flags & XCOFF_EXPORT) != 0 - && (h->flags & XCOFF_IMPORT) == 0 - && (h->flags & XCOFF_DEF_REGULAR) == 0 - && (h->flags & XCOFF_DEF_DYNAMIC) == 0 - && (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak)) - { - if ((h->flags & XCOFF_DESCRIPTOR) != 0 - && (h->descriptor->root.type == bfd_link_hash_defined - || h->descriptor->root.type == bfd_link_hash_defweak)) - { - asection *sec; - - /* This is an undefined function descriptor associated with - a defined entry point. We can build up a function - descriptor ourselves. Believe it or not, the AIX linker - actually does this, and there are cases where we need to - do it as well. */ - sec = xcoff_hash_table (ldinfo->info)->descriptor_section; - h->root.type = bfd_link_hash_defined; - h->root.u.def.section = sec; - h->root.u.def.value = sec->_raw_size; - h->smclas = XMC_DS; - h->flags |= XCOFF_DEF_REGULAR; - sec->_raw_size += 12; - - /* A function descriptor uses two relocs: one for the - associated code, and one for the TOC address. */ - xcoff_hash_table (ldinfo->info)->ldrel_count += 2; - sec->reloc_count += 2; - - /* We handle writing out the contents of the descriptor in - xcoff_write_global_symbol. */ - } - else - { - (*_bfd_error_handler) - (_("warning: attempt to export undefined symbol `%s'"), - h->root.root.string); - h->ldsym = NULL; - return true; - } - } - - /* If this is still a common symbol, and it wasn't garbage - collected, we need to actually allocate space for it in the .bss - section. */ - if (h->root.type == bfd_link_hash_common - && (! xcoff_hash_table (ldinfo->info)->gc - || (h->flags & XCOFF_MARK) != 0) - && h->root.u.c.p->section->_raw_size == 0) - { - BFD_ASSERT (bfd_is_com_section (h->root.u.c.p->section)); - h->root.u.c.p->section->_raw_size = h->root.u.c.size; - } - - /* We need to add a symbol to the .loader section if it is mentioned - in a reloc which we are copying to the .loader section and it was - not defined or common, or if it is the entry point, or if it is - being exported. */ - - if (((h->flags & XCOFF_LDREL) == 0 - || h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak - || h->root.type == bfd_link_hash_common) - && (h->flags & XCOFF_ENTRY) == 0 - && (h->flags & XCOFF_EXPORT) == 0) - { - h->ldsym = NULL; - return true; - } - - /* We don't need to add this symbol if we did garbage collection and - we did not mark this symbol. */ - if (xcoff_hash_table (ldinfo->info)->gc - && (h->flags & XCOFF_MARK) == 0) - { - h->ldsym = NULL; - return true; - } - - /* We may have already processed this symbol due to the recursive - call above. */ - if ((h->flags & XCOFF_BUILT_LDSYM) != 0) - return true; - - /* We need to add this symbol to the .loader symbols. */ - - BFD_ASSERT (h->ldsym == NULL); - h->ldsym = ((struct internal_ldsym *) - bfd_zalloc (ldinfo->output_bfd, - sizeof (struct internal_ldsym))); - if (h->ldsym == NULL) - { - ldinfo->failed = true; - return false; - } - - if ((h->flags & XCOFF_IMPORT) != 0) - h->ldsym->l_ifile = h->ldindx; - - /* The first 3 symbol table indices are reserved to indicate the - sections. */ - h->ldindx = ldinfo->ldsym_count + 3; - - ++ldinfo->ldsym_count; - - len = strlen (h->root.root.string); - if (len <= SYMNMLEN) - strncpy (h->ldsym->_l._l_name, h->root.root.string, SYMNMLEN); - else - { - if (ldinfo->string_size + len + 3 > ldinfo->string_alc) - { - size_t newalc; - bfd_byte *newstrings; - - newalc = ldinfo->string_alc * 2; - if (newalc == 0) - newalc = 32; - while (ldinfo->string_size + len + 3 > newalc) - newalc *= 2; - - newstrings = ((bfd_byte *) - bfd_realloc ((PTR) ldinfo->strings, newalc)); - if (newstrings == NULL) - { - ldinfo->failed = true; - return false; - } - ldinfo->string_alc = newalc; - ldinfo->strings = newstrings; - } - - bfd_put_16 (ldinfo->output_bfd, len + 1, - ldinfo->strings + ldinfo->string_size); - strcpy (ldinfo->strings + ldinfo->string_size + 2, h->root.root.string); - h->ldsym->_l._l_l._l_zeroes = 0; - h->ldsym->_l._l_l._l_offset = ldinfo->string_size + 2; - ldinfo->string_size += len + 3; - } - - h->flags |= XCOFF_BUILT_LDSYM; - - return true; -} - -/* Do the final link step. */ - -boolean -_bfd_xcoff_bfd_final_link (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - bfd_size_type symesz; - struct xcoff_final_link_info finfo; - asection *o; - struct bfd_link_order *p; - size_t max_contents_size; - size_t max_sym_count; - size_t max_lineno_count; - size_t max_reloc_count; - size_t max_output_reloc_count; - file_ptr rel_filepos; - unsigned int relsz; - file_ptr line_filepos; - unsigned int linesz; - bfd *sub; - bfd_byte *external_relocs = NULL; - char strbuf[STRING_SIZE_SIZE]; - - if (info->shared) - abfd->flags |= DYNAMIC; - - symesz = bfd_coff_symesz (abfd); - - finfo.info = info; - finfo.output_bfd = abfd; - finfo.strtab = NULL; - finfo.section_info = NULL; - finfo.last_file_index = -1; - finfo.toc_symindx = -1; - finfo.internal_syms = NULL; - finfo.sym_indices = NULL; - finfo.outsyms = NULL; - finfo.linenos = NULL; - finfo.contents = NULL; - finfo.external_relocs = NULL; - - finfo.ldsym = ((struct external_ldsym *) - (xcoff_hash_table (info)->loader_section->contents - + LDHDRSZ)); - finfo.ldrel = ((struct external_ldrel *) - (xcoff_hash_table (info)->loader_section->contents - + LDHDRSZ - + xcoff_hash_table (info)->ldhdr.l_nsyms * LDSYMSZ)); - - xcoff_data (abfd)->coff.link_info = info; - - finfo.strtab = _bfd_stringtab_init (); - if (finfo.strtab == NULL) - goto error_return; - - /* Count the line number and relocation entries required for the - output file. Determine a few maximum sizes. */ - max_contents_size = 0; - max_lineno_count = 0; - max_reloc_count = 0; - for (o = abfd->sections; o != NULL; o = o->next) - { - o->reloc_count = 0; - o->lineno_count = 0; - for (p = o->link_order_head; p != NULL; p = p->next) - { - if (p->type == bfd_indirect_link_order) - { - asection *sec; - - sec = p->u.indirect.section; - - /* Mark all sections which are to be included in the - link. This will normally be every section. We need - to do this so that we can identify any sections which - the linker has decided to not include. */ - sec->linker_mark = true; - - if (info->strip == strip_none - || info->strip == strip_some) - o->lineno_count += sec->lineno_count; - - o->reloc_count += sec->reloc_count; - - if (sec->_raw_size > max_contents_size) - max_contents_size = sec->_raw_size; - if (sec->lineno_count > max_lineno_count) - max_lineno_count = sec->lineno_count; - if (coff_section_data (sec->owner, sec) != NULL - && xcoff_section_data (sec->owner, sec) != NULL - && (xcoff_section_data (sec->owner, sec)->lineno_count - > max_lineno_count)) - max_lineno_count = - xcoff_section_data (sec->owner, sec)->lineno_count; - if (sec->reloc_count > max_reloc_count) - max_reloc_count = sec->reloc_count; - } - else if (p->type == bfd_section_reloc_link_order - || p->type == bfd_symbol_reloc_link_order) - ++o->reloc_count; - } - } - - /* Compute the file positions for all the sections. */ - if (abfd->output_has_begun) - { - if (xcoff_hash_table (info)->file_align != 0) - abort (); - } - else - { - bfd_vma file_align; - - file_align = xcoff_hash_table (info)->file_align; - if (file_align != 0) - { - boolean saw_contents; - int indx; - asection **op; - file_ptr sofar; - - /* Insert .pad sections before every section which has - contents and is loaded, if it is preceded by some other - section which has contents and is loaded. */ - saw_contents = true; - for (op = &abfd->sections; *op != NULL; op = &(*op)->next) - { - if (strcmp ((*op)->name, ".pad") == 0) - saw_contents = false; - else if (((*op)->flags & SEC_HAS_CONTENTS) != 0 - && ((*op)->flags & SEC_LOAD) != 0) - { - if (! saw_contents) - saw_contents = true; - else - { - asection *n, *hold; - - hold = *op; - *op = NULL; - n = bfd_make_section_anyway (abfd, ".pad"); - BFD_ASSERT (*op == n); - n->next = hold; - n->flags = SEC_HAS_CONTENTS; - n->alignment_power = 0; - saw_contents = false; - } - } - } - - /* Reset the section indices after inserting the new - sections. */ - indx = 0; - for (o = abfd->sections; o != NULL; o = o->next) - { - ++indx; - o->target_index = indx; - } - BFD_ASSERT ((unsigned int) indx == abfd->section_count); - - /* Work out appropriate sizes for the .pad sections to force - each section to land on a page boundary. This bit of - code knows what compute_section_file_positions is going - to do. */ - sofar = bfd_coff_filhsz (abfd); - sofar += bfd_coff_aoutsz (abfd); - sofar += abfd->section_count * bfd_coff_scnhsz (abfd); - for (o = abfd->sections; o != NULL; o = o->next) - if (o->reloc_count >= 0xffff || o->lineno_count >= 0xffff) - sofar += bfd_coff_scnhsz (abfd); - - for (o = abfd->sections; o != NULL; o = o->next) - { - if (strcmp (o->name, ".pad") == 0) - { - bfd_vma pageoff; - - BFD_ASSERT (o->_raw_size == 0); - pageoff = sofar & (file_align - 1); - if (pageoff != 0) - { - o->_raw_size = file_align - pageoff; - sofar += file_align - pageoff; - o->flags |= SEC_HAS_CONTENTS; - } - } - else - { - if ((o->flags & SEC_HAS_CONTENTS) != 0) - sofar += BFD_ALIGN (o->_raw_size, - 1 << o->alignment_power); - } - } - } - - if (! bfd_coff_compute_section_file_positions (abfd)) - goto error_return; - } - - /* Allocate space for the pointers we need to keep for the relocs. */ - { - unsigned int i; - - /* We use section_count + 1, rather than section_count, because - the target_index fields are 1 based. */ - finfo.section_info = - ((struct xcoff_link_section_info *) - bfd_malloc ((abfd->section_count + 1) - * sizeof (struct xcoff_link_section_info))); - if (finfo.section_info == NULL) - goto error_return; - for (i = 0; i <= abfd->section_count; i++) - { - finfo.section_info[i].relocs = NULL; - finfo.section_info[i].rel_hashes = NULL; - finfo.section_info[i].toc_rel_hashes = NULL; - } - } - - /* Set the file positions for the relocs. */ - rel_filepos = obj_relocbase (abfd); - relsz = bfd_coff_relsz (abfd); - max_output_reloc_count = 0; - for (o = abfd->sections; o != NULL; o = o->next) - { - if (o->reloc_count == 0) - o->rel_filepos = 0; - else - { - /* A stripped file has no relocs. However, we still - allocate the buffers, so that later code doesn't have to - worry about whether we are stripping or not. */ - if (info->strip == strip_all) - o->rel_filepos = 0; - else - { - o->flags |= SEC_RELOC; - o->rel_filepos = rel_filepos; - rel_filepos += o->reloc_count * relsz; - } - - /* We don't know the indices of global symbols until we have - written out all the local symbols. For each section in - the output file, we keep an array of pointers to hash - table entries. Each entry in the array corresponds to a - reloc. When we find a reloc against a global symbol, we - set the corresponding entry in this array so that we can - fix up the symbol index after we have written out all the - local symbols. - - Because of this problem, we also keep the relocs in - memory until the end of the link. This wastes memory. - We could backpatch the file later, I suppose, although it - would be slow. */ - finfo.section_info[o->target_index].relocs = - ((struct internal_reloc *) - bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); - finfo.section_info[o->target_index].rel_hashes = - ((struct xcoff_link_hash_entry **) - bfd_malloc (o->reloc_count - * sizeof (struct xcoff_link_hash_entry *))); - if (finfo.section_info[o->target_index].relocs == NULL - || finfo.section_info[o->target_index].rel_hashes == NULL) - goto error_return; - - if (o->reloc_count > max_output_reloc_count) - max_output_reloc_count = o->reloc_count; - } - } - - /* We now know the size of the relocs, so we can determine the file - positions of the line numbers. */ - line_filepos = rel_filepos; - finfo.line_filepos = line_filepos; - linesz = bfd_coff_linesz (abfd); - for (o = abfd->sections; o != NULL; o = o->next) - { - if (o->lineno_count == 0) - o->line_filepos = 0; - else - { - o->line_filepos = line_filepos; - line_filepos += o->lineno_count * linesz; - } - - /* Reset the reloc and lineno counts, so that we can use them to - count the number of entries we have output so far. */ - o->reloc_count = 0; - o->lineno_count = 0; - } - - obj_sym_filepos (abfd) = line_filepos; - - /* Figure out the largest number of symbols in an input BFD. Take - the opportunity to clear the output_has_begun fields of all the - input BFD's. We want at least 6 symbols, since that is the - number which xcoff_write_global_symbol may need. */ - max_sym_count = 6; - for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) - { - size_t sz; - - sub->output_has_begun = false; - sz = obj_raw_syment_count (sub); - if (sz > max_sym_count) - max_sym_count = sz; - } - - /* Allocate some buffers used while linking. */ - finfo.internal_syms = ((struct internal_syment *) - bfd_malloc (max_sym_count - * sizeof (struct internal_syment))); - finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); - finfo.outsyms = ((bfd_byte *) - bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); - finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count - * bfd_coff_linesz (abfd)); - finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); - finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); - if ((finfo.internal_syms == NULL && max_sym_count > 0) - || (finfo.sym_indices == NULL && max_sym_count > 0) - || finfo.outsyms == NULL - || (finfo.linenos == NULL && max_lineno_count > 0) - || (finfo.contents == NULL && max_contents_size > 0) - || (finfo.external_relocs == NULL && max_reloc_count > 0)) - goto error_return; - - obj_raw_syment_count (abfd) = 0; - xcoff_data (abfd)->toc = (bfd_vma) -1; - - /* We now know the position of everything in the file, except that - we don't know the size of the symbol table and therefore we don't - know where the string table starts. We just build the string - table in memory as we go along. We process all the relocations - for a single input file at once. */ - for (o = abfd->sections; o != NULL; o = o->next) - { - for (p = o->link_order_head; p != NULL; p = p->next) - { - if (p->type == bfd_indirect_link_order - && p->u.indirect.section->owner->xvec == abfd->xvec) - { - sub = p->u.indirect.section->owner; - if (! sub->output_has_begun) - { - if (! xcoff_link_input_bfd (&finfo, sub)) - goto error_return; - sub->output_has_begun = true; - } - } - else if (p->type == bfd_section_reloc_link_order - || p->type == bfd_symbol_reloc_link_order) - { - if (! xcoff_reloc_link_order (abfd, &finfo, o, p)) - goto error_return; - } - else - { - if (! _bfd_default_link_order (abfd, info, o, p)) - goto error_return; - } - } - } - - /* Free up the buffers used by xcoff_link_input_bfd. */ - - if (finfo.internal_syms != NULL) - { - free (finfo.internal_syms); - finfo.internal_syms = NULL; - } - if (finfo.sym_indices != NULL) - { - free (finfo.sym_indices); - finfo.sym_indices = NULL; - } - if (finfo.linenos != NULL) - { - free (finfo.linenos); - finfo.linenos = NULL; - } - if (finfo.contents != NULL) - { - free (finfo.contents); - finfo.contents = NULL; - } - if (finfo.external_relocs != NULL) - { - free (finfo.external_relocs); - finfo.external_relocs = NULL; - } - - /* The value of the last C_FILE symbol is supposed to be -1. Write - it out again. */ - if (finfo.last_file_index != -1) - { - finfo.last_file.n_value = -1; - bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, - (PTR) finfo.outsyms); - if (bfd_seek (abfd, - (obj_sym_filepos (abfd) - + finfo.last_file_index * symesz), - SEEK_SET) != 0 - || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) - goto error_return; - } - - /* Write out all the global symbols which do not come from XCOFF - input files. */ - xcoff_link_hash_traverse (xcoff_hash_table (info), - xcoff_write_global_symbol, - (PTR) &finfo); - - if (finfo.outsyms != NULL) - { - free (finfo.outsyms); - finfo.outsyms = NULL; - } - - /* Now that we have written out all the global symbols, we know the - symbol indices to use for relocs against them, and we can finally - write out the relocs. */ - external_relocs = (bfd_byte *) bfd_malloc (max_output_reloc_count * relsz); - if (external_relocs == NULL && max_output_reloc_count != 0) - goto error_return; - - for (o = abfd->sections; o != NULL; o = o->next) - { - struct internal_reloc *irel; - struct internal_reloc *irelend; - struct xcoff_link_hash_entry **rel_hash; - struct xcoff_toc_rel_hash *toc_rel_hash; - bfd_byte *erel; - - /* A stripped file has no relocs. */ - if (info->strip == strip_all) - { - o->reloc_count = 0; - continue; - } - - if (o->reloc_count == 0) - continue; - - irel = finfo.section_info[o->target_index].relocs; - irelend = irel + o->reloc_count; - rel_hash = finfo.section_info[o->target_index].rel_hashes; - for (; irel < irelend; irel++, rel_hash++, erel += relsz) - { - if (*rel_hash != NULL) - { - if ((*rel_hash)->indx < 0) - { - if (! ((*info->callbacks->unattached_reloc) - (info, (*rel_hash)->root.root.string, - (bfd *) NULL, o, irel->r_vaddr))) - goto error_return; - (*rel_hash)->indx = 0; - } - irel->r_symndx = (*rel_hash)->indx; - } - } - - for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes; - toc_rel_hash != NULL; - toc_rel_hash = toc_rel_hash->next) - { - if (toc_rel_hash->h->u.toc_indx < 0) - { - if (! ((*info->callbacks->unattached_reloc) - (info, toc_rel_hash->h->root.root.string, - (bfd *) NULL, o, toc_rel_hash->rel->r_vaddr))) - goto error_return; - toc_rel_hash->h->u.toc_indx = 0; - } - toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx; - } - - /* XCOFF requires that the relocs be sorted by address. We tend - to produce them in the order in which their containing csects - appear in the symbol table, which is not necessarily by - address. So we sort them here. There may be a better way to - do this. */ - qsort ((PTR) finfo.section_info[o->target_index].relocs, - o->reloc_count, sizeof (struct internal_reloc), - xcoff_sort_relocs); - - irel = finfo.section_info[o->target_index].relocs; - irelend = irel + o->reloc_count; - erel = external_relocs; - for (; irel < irelend; irel++, rel_hash++, erel += relsz) - bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); - - if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 - || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, - abfd) != relsz * o->reloc_count) - goto error_return; - } - - if (external_relocs != NULL) - { - free (external_relocs); - external_relocs = NULL; - } - - /* Free up the section information. */ - if (finfo.section_info != NULL) - { - unsigned int i; - - for (i = 0; i < abfd->section_count; i++) - { - if (finfo.section_info[i].relocs != NULL) - free (finfo.section_info[i].relocs); - if (finfo.section_info[i].rel_hashes != NULL) - free (finfo.section_info[i].rel_hashes); - } - free (finfo.section_info); - finfo.section_info = NULL; - } - - /* Write out the loader section contents. */ - BFD_ASSERT ((bfd_byte *) finfo.ldrel - == (xcoff_hash_table (info)->loader_section->contents - + xcoff_hash_table (info)->ldhdr.l_impoff)); - o = xcoff_hash_table (info)->loader_section; - if (! bfd_set_section_contents (abfd, o->output_section, - o->contents, o->output_offset, - o->_raw_size)) - goto error_return; - - /* Write out the magic sections. */ - o = xcoff_hash_table (info)->linkage_section; - if (o->_raw_size > 0 - && ! bfd_set_section_contents (abfd, o->output_section, o->contents, - o->output_offset, o->_raw_size)) - goto error_return; - o = xcoff_hash_table (info)->toc_section; - if (o->_raw_size > 0 - && ! bfd_set_section_contents (abfd, o->output_section, o->contents, - o->output_offset, o->_raw_size)) - goto error_return; - o = xcoff_hash_table (info)->descriptor_section; - if (o->_raw_size > 0 - && ! bfd_set_section_contents (abfd, o->output_section, o->contents, - o->output_offset, o->_raw_size)) - goto error_return; - - /* Write out the string table. */ - if (bfd_seek (abfd, - (obj_sym_filepos (abfd) - + obj_raw_syment_count (abfd) * symesz), - SEEK_SET) != 0) - goto error_return; - bfd_h_put_32 (abfd, - _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, - (bfd_byte *) strbuf); - if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) - goto error_return; - if (! _bfd_stringtab_emit (abfd, finfo.strtab)) - goto error_return; - - _bfd_stringtab_free (finfo.strtab); - - /* Write out the debugging string table. */ - o = xcoff_hash_table (info)->debug_section; - if (o != NULL) - { - struct bfd_strtab_hash *debug_strtab; - - debug_strtab = xcoff_hash_table (info)->debug_strtab; - BFD_ASSERT (o->output_section->_raw_size - o->output_offset - >= _bfd_stringtab_size (debug_strtab)); - if (bfd_seek (abfd, - o->output_section->filepos + o->output_offset, - SEEK_SET) != 0) - goto error_return; - if (! _bfd_stringtab_emit (abfd, debug_strtab)) - goto error_return; - } - - /* Setting bfd_get_symcount to 0 will cause write_object_contents to - not try to write out the symbols. */ - bfd_get_symcount (abfd) = 0; - - return true; - - error_return: - if (finfo.strtab != NULL) - _bfd_stringtab_free (finfo.strtab); - if (finfo.section_info != NULL) - { - unsigned int i; - - for (i = 0; i < abfd->section_count; i++) - { - if (finfo.section_info[i].relocs != NULL) - free (finfo.section_info[i].relocs); - if (finfo.section_info[i].rel_hashes != NULL) - free (finfo.section_info[i].rel_hashes); - } - free (finfo.section_info); - } - if (finfo.internal_syms != NULL) - free (finfo.internal_syms); - if (finfo.sym_indices != NULL) - free (finfo.sym_indices); - if (finfo.outsyms != NULL) - free (finfo.outsyms); - if (finfo.linenos != NULL) - free (finfo.linenos); - if (finfo.contents != NULL) - free (finfo.contents); - if (finfo.external_relocs != NULL) - free (finfo.external_relocs); - if (external_relocs != NULL) - free (external_relocs); - return false; -} - -/* Link an input file into the linker output file. This function - handles all the sections and relocations of the input file at once. */ - -static boolean -xcoff_link_input_bfd (finfo, input_bfd) - struct xcoff_final_link_info *finfo; - bfd *input_bfd; -{ - bfd *output_bfd; - const char *strings; - bfd_size_type syment_base; - unsigned int n_tmask; - unsigned int n_btshft; - boolean copy, hash; - bfd_size_type isymesz; - bfd_size_type osymesz; - bfd_size_type linesz; - bfd_byte *esym; - bfd_byte *esym_end; - struct xcoff_link_hash_entry **sym_hash; - struct internal_syment *isymp; - asection **csectpp; - unsigned long *debug_index; - long *indexp; - unsigned long output_index; - bfd_byte *outsym; - unsigned int incls; - asection *oline; - boolean keep_syms; - asection *o; - - /* We can just skip DYNAMIC files, unless this is a static link. */ - if ((input_bfd->flags & DYNAMIC) != 0 - && ! finfo->info->static_link) - return true; - - /* Move all the symbols to the output file. */ - - output_bfd = finfo->output_bfd; - strings = NULL; - syment_base = obj_raw_syment_count (output_bfd); - isymesz = bfd_coff_symesz (input_bfd); - osymesz = bfd_coff_symesz (output_bfd); - linesz = bfd_coff_linesz (input_bfd); - BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); - - n_tmask = coff_data (input_bfd)->local_n_tmask; - n_btshft = coff_data (input_bfd)->local_n_btshft; - - /* Define macros so that ISFCN, et. al., macros work correctly. */ -#define N_TMASK n_tmask -#define N_BTSHFT n_btshft - - copy = false; - if (! finfo->info->keep_memory) - copy = true; - hash = true; - if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) - hash = false; - - if (! _bfd_coff_get_external_symbols (input_bfd)) - return false; - - esym = (bfd_byte *) obj_coff_external_syms (input_bfd); - esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; - sym_hash = obj_xcoff_sym_hashes (input_bfd); - csectpp = xcoff_data (input_bfd)->csects; - debug_index = xcoff_data (input_bfd)->debug_indices; - isymp = finfo->internal_syms; - indexp = finfo->sym_indices; - output_index = syment_base; - outsym = finfo->outsyms; - incls = 0; - oline = NULL; - - while (esym < esym_end) - { - struct internal_syment isym; - union internal_auxent aux; - int smtyp = 0; - boolean skip; - boolean require; - int add; - - bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp); - - /* If this is a C_EXT or C_HIDEXT symbol, we need the csect - information. */ - if (isymp->n_sclass == C_EXT || isymp->n_sclass == C_HIDEXT) - { - BFD_ASSERT (isymp->n_numaux > 0); - bfd_coff_swap_aux_in (input_bfd, - (PTR) (esym + isymesz * isymp->n_numaux), - isymp->n_type, isymp->n_sclass, - isymp->n_numaux - 1, isymp->n_numaux, - (PTR) &aux); - smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp); - } - - /* Make a copy of *isymp so that the relocate_section function - always sees the original values. This is more reliable than - always recomputing the symbol value even if we are stripping - the symbol. */ - isym = *isymp; - - /* If this symbol is in the .loader section, swap out the - .loader symbol information. If this is an external symbol - reference to a defined symbol, though, then wait until we get - to the definition. */ - if (isym.n_sclass == C_EXT - && *sym_hash != NULL - && (*sym_hash)->ldsym != NULL - && (smtyp != XTY_ER - || (*sym_hash)->root.type == bfd_link_hash_undefined)) - { - struct xcoff_link_hash_entry *h; - struct internal_ldsym *ldsym; - - h = *sym_hash; - ldsym = h->ldsym; - if (isym.n_scnum > 0) - { - ldsym->l_scnum = (*csectpp)->output_section->target_index; - ldsym->l_value = (isym.n_value - + (*csectpp)->output_section->vma - + (*csectpp)->output_offset - - (*csectpp)->vma); - } - else - { - ldsym->l_scnum = isym.n_scnum; - ldsym->l_value = isym.n_value; - } - - ldsym->l_smtype = smtyp; - if (((h->flags & XCOFF_DEF_REGULAR) == 0 - && (h->flags & XCOFF_DEF_DYNAMIC) != 0) - || (h->flags & XCOFF_IMPORT) != 0) - ldsym->l_smtype |= L_IMPORT; - if (((h->flags & XCOFF_DEF_REGULAR) != 0 - && (h->flags & XCOFF_DEF_DYNAMIC) != 0) - || (h->flags & XCOFF_EXPORT) != 0) - ldsym->l_smtype |= L_EXPORT; - if ((h->flags & XCOFF_ENTRY) != 0) - ldsym->l_smtype |= L_ENTRY; - - ldsym->l_smclas = aux.x_csect.x_smclas; - - if (ldsym->l_ifile == (bfd_size_type) -1) - ldsym->l_ifile = 0; - else if (ldsym->l_ifile == 0) - { - if ((ldsym->l_smtype & L_IMPORT) == 0) - ldsym->l_ifile = 0; - else - { - bfd *impbfd; - - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - impbfd = h->root.u.def.section->owner; - else if (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - impbfd = h->root.u.undef.abfd; - else - impbfd = NULL; - - if (impbfd == NULL) - ldsym->l_ifile = 0; - else - { - BFD_ASSERT (impbfd->xvec == finfo->output_bfd->xvec); - ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; - } - } - } - - ldsym->l_parm = 0; - - BFD_ASSERT (h->ldindx >= 0); - BFD_ASSERT (LDSYMSZ == sizeof (struct external_ldsym)); - xcoff_swap_ldsym_out (finfo->output_bfd, ldsym, - finfo->ldsym + h->ldindx - 3); - h->ldsym = NULL; - - /* Fill in snentry now that we know the target_index. */ - if ((h->flags & XCOFF_ENTRY) != 0 - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)) - xcoff_data (output_bfd)->snentry = - h->root.u.def.section->output_section->target_index; - } - - *indexp = -1; - - skip = false; - require = false; - add = 1 + isym.n_numaux; - - /* If we are skipping this csect, we want to skip this symbol. */ - if (*csectpp == NULL) - skip = true; - - /* If we garbage collected this csect, we want to skip this - symbol. */ - if (! skip - && xcoff_hash_table (finfo->info)->gc - && ((*csectpp)->flags & SEC_MARK) == 0 - && *csectpp != bfd_abs_section_ptr) - skip = true; - - /* An XCOFF linker always skips C_STAT symbols. */ - if (! skip - && isymp->n_sclass == C_STAT) - skip = true; - - /* We skip all but the first TOC anchor. */ - if (! skip - && isymp->n_sclass == C_HIDEXT - && aux.x_csect.x_smclas == XMC_TC0) - { - if (finfo->toc_symindx != -1) - skip = true; - else - { - bfd_vma tocval, tocend; - bfd *inp; - - tocval = ((*csectpp)->output_section->vma - + (*csectpp)->output_offset - + isym.n_value - - (*csectpp)->vma); - - /* We want to find out if tocval is a good value to use - as the TOC anchor--that is, whether we can access all - of the TOC using a 16 bit offset from tocval. This - test assumes that the TOC comes at the end of the - output section, as it does in the default linker - script. */ - tocend = ((*csectpp)->output_section->vma - + (*csectpp)->output_section->_raw_size); - for (inp = finfo->info->input_bfds; - inp != NULL; - inp = inp->link_next) - { - asection *o; - - for (o = inp->sections; o != NULL; o = o->next) - if (strcmp (o->name, ".tocbss") == 0) - { - bfd_vma new_toc_end; - new_toc_end = (o->output_section->vma - + o->output_offset - + o->_cooked_size); - if (new_toc_end > tocend) - tocend = new_toc_end; - } - - } - - if (tocval + 0x10000 < tocend) - { - (*_bfd_error_handler) - (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc when compiling"), - (unsigned long) (tocend - tocval)); - bfd_set_error (bfd_error_file_too_big); - return false; - } - - if (tocval + 0x8000 < tocend) - { - bfd_vma tocadd; - - tocadd = tocend - (tocval + 0x8000); - tocval += tocadd; - isym.n_value += tocadd; - } - - finfo->toc_symindx = output_index; - xcoff_data (finfo->output_bfd)->toc = tocval; - xcoff_data (finfo->output_bfd)->sntoc = - (*csectpp)->output_section->target_index; - require = true; - } - } - - /* If we are stripping all symbols, we want to skip this one. */ - if (! skip - && finfo->info->strip == strip_all) - skip = true; - - /* We can skip resolved external references. */ - if (! skip - && isym.n_sclass == C_EXT - && smtyp == XTY_ER - && (*sym_hash)->root.type != bfd_link_hash_undefined) - skip = true; - - /* We can skip common symbols if they got defined somewhere - else. */ - if (! skip - && isym.n_sclass == C_EXT - && smtyp == XTY_CM - && ((*sym_hash)->root.type != bfd_link_hash_common - || (*sym_hash)->root.u.c.p->section != *csectpp) - && ((*sym_hash)->root.type != bfd_link_hash_defined - || (*sym_hash)->root.u.def.section != *csectpp)) - skip = true; - - /* Skip local symbols if we are discarding them. */ - if (! skip - && finfo->info->discard == discard_all - && isym.n_sclass != C_EXT - && (isym.n_sclass != C_HIDEXT - || smtyp != XTY_SD)) - skip = true; - - /* If we stripping debugging symbols, and this is a debugging - symbol, then skip it. */ - if (! skip - && finfo->info->strip == strip_debugger - && isym.n_scnum == N_DEBUG) - skip = true; - - /* If some symbols are stripped based on the name, work out the - name and decide whether to skip this symbol. We don't handle - this correctly for symbols whose names are in the .debug - section; to get it right we would need a new bfd_strtab_hash - function to return the string given the index. */ - if (! skip - && (finfo->info->strip == strip_some - || finfo->info->discard == discard_l) - && (debug_index == NULL || *debug_index == (unsigned long) -1)) - { - const char *name; - char buf[SYMNMLEN + 1]; - - name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); - if (name == NULL) - return false; - - if ((finfo->info->strip == strip_some - && (bfd_hash_lookup (finfo->info->keep_hash, name, false, - false) == NULL)) - || (finfo->info->discard == discard_l - && (isym.n_sclass != C_EXT - && (isym.n_sclass != C_HIDEXT - || smtyp != XTY_SD)) - && bfd_is_local_label_name (input_bfd, name))) - skip = true; - } - - /* We can not skip the first TOC anchor. */ - if (skip - && require - && finfo->info->strip != strip_all) - skip = false; - - /* We now know whether we are to skip this symbol or not. */ - if (! skip) - { - /* Adjust the symbol in order to output it. */ - - if (isym._n._n_n._n_zeroes == 0 - && isym._n._n_n._n_offset != 0) - { - /* This symbol has a long name. Enter it in the string - table we are building. If *debug_index != -1, the - name has already been entered in the .debug section. */ - if (debug_index != NULL && *debug_index != (unsigned long) -1) - isym._n._n_n._n_offset = *debug_index; - else - { - const char *name; - bfd_size_type indx; - - name = _bfd_coff_internal_syment_name (input_bfd, &isym, - (char *) NULL); - if (name == NULL) - return false; - indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); - if (indx == (bfd_size_type) -1) - return false; - isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; - } - } - - if (isym.n_sclass != C_BSTAT - && isym.n_sclass != C_ESTAT - && isym.n_sclass != C_DECL - && isym.n_scnum > 0) - { - isym.n_scnum = (*csectpp)->output_section->target_index; - isym.n_value += ((*csectpp)->output_section->vma - + (*csectpp)->output_offset - - (*csectpp)->vma); - } - - /* The value of a C_FILE symbol is the symbol index of the - next C_FILE symbol. The value of the last C_FILE symbol - is -1. We try to get this right, below, just before we - write the symbols out, but in the general case we may - have to write the symbol out twice. */ - if (isym.n_sclass == C_FILE) - { - if (finfo->last_file_index != -1 - && finfo->last_file.n_value != (long) output_index) - { - /* We must correct the value of the last C_FILE entry. */ - finfo->last_file.n_value = output_index; - if ((bfd_size_type) finfo->last_file_index >= syment_base) - { - /* The last C_FILE symbol is in this input file. */ - bfd_coff_swap_sym_out (output_bfd, - (PTR) &finfo->last_file, - (PTR) (finfo->outsyms - + ((finfo->last_file_index - - syment_base) - * osymesz))); - } - else - { - /* We have already written out the last C_FILE - symbol. We need to write it out again. We - borrow *outsym temporarily. */ - bfd_coff_swap_sym_out (output_bfd, - (PTR) &finfo->last_file, - (PTR) outsym); - if (bfd_seek (output_bfd, - (obj_sym_filepos (output_bfd) - + finfo->last_file_index * osymesz), - SEEK_SET) != 0 - || (bfd_write (outsym, osymesz, 1, output_bfd) - != osymesz)) - return false; - } - } - - finfo->last_file_index = output_index; - finfo->last_file = isym; - } - - /* The value of a C_BINCL or C_EINCL symbol is a file offset - into the line numbers. We update the symbol values when - we handle the line numbers. */ - if (isym.n_sclass == C_BINCL - || isym.n_sclass == C_EINCL) - { - isym.n_value = finfo->line_filepos; - ++incls; - } - - /* Output the symbol. */ - - bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym); - - *indexp = output_index; - - if (isym.n_sclass == C_EXT) - { - long indx; - struct xcoff_link_hash_entry *h; - - indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) - / isymesz); - h = obj_xcoff_sym_hashes (input_bfd)[indx]; - BFD_ASSERT (h != NULL); - h->indx = output_index; - } - - /* If this is a symbol in the TOC which we may have merged - (class XMC_TC), remember the symbol index of the TOC - symbol. */ - if (isym.n_sclass == C_HIDEXT - && aux.x_csect.x_smclas == XMC_TC - && *sym_hash != NULL) - { - BFD_ASSERT (((*sym_hash)->flags & XCOFF_SET_TOC) == 0); - BFD_ASSERT ((*sym_hash)->toc_section != NULL); - (*sym_hash)->u.toc_indx = output_index; - } - - output_index += add; - outsym += add * osymesz; - } - - esym += add * isymesz; - isymp += add; - csectpp += add; - sym_hash += add; - if (debug_index != NULL) - debug_index += add; - ++indexp; - for (--add; add > 0; --add) - *indexp++ = -1; - } - - /* Fix up the aux entries and the C_BSTAT symbols. This must be - done in a separate pass, because we don't know the correct symbol - indices until we have already decided which symbols we are going - to keep. */ - - esym = (bfd_byte *) obj_coff_external_syms (input_bfd); - esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; - isymp = finfo->internal_syms; - indexp = finfo->sym_indices; - csectpp = xcoff_data (input_bfd)->csects; - outsym = finfo->outsyms; - while (esym < esym_end) - { - int add; - - add = 1 + isymp->n_numaux; - - if (*indexp < 0) - esym += add * isymesz; - else - { - int i; - - if (isymp->n_sclass == C_BSTAT) - { - struct internal_syment isym; - unsigned long indx; - - /* The value of a C_BSTAT symbol is the symbol table - index of the containing csect. */ - bfd_coff_swap_sym_in (output_bfd, (PTR) outsym, (PTR) &isym); - indx = isym.n_value; - if (indx < obj_raw_syment_count (input_bfd)) - { - long symindx; - - symindx = finfo->sym_indices[indx]; - if (symindx < 0) - isym.n_value = 0; - else - isym.n_value = symindx; - bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, - (PTR) outsym); - } - } - - esym += isymesz; - outsym += osymesz; - - for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) - { - union internal_auxent aux; - - bfd_coff_swap_aux_in (input_bfd, (PTR) esym, isymp->n_type, - isymp->n_sclass, i, isymp->n_numaux, - (PTR) &aux); - - if (isymp->n_sclass == C_FILE) - { - /* This is the file name (or some comment put in by - the compiler). If it is long, we must put it in - the string table. */ - if (aux.x_file.x_n.x_zeroes == 0 - && aux.x_file.x_n.x_offset != 0) - { - const char *filename; - bfd_size_type indx; - - BFD_ASSERT (aux.x_file.x_n.x_offset - >= STRING_SIZE_SIZE); - if (strings == NULL) - { - strings = _bfd_coff_read_string_table (input_bfd); - if (strings == NULL) - return false; - } - filename = strings + aux.x_file.x_n.x_offset; - indx = _bfd_stringtab_add (finfo->strtab, filename, - hash, copy); - if (indx == (bfd_size_type) -1) - return false; - aux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; - } - } - else if ((isymp->n_sclass == C_EXT - || isymp->n_sclass == C_HIDEXT) - && i + 1 == isymp->n_numaux) - { - /* We don't support type checking. I don't know if - anybody does. */ - aux.x_csect.x_parmhash = 0; - /* I don't think anybody uses these fields, but we'd - better clobber them just in case. */ - aux.x_csect.x_stab = 0; - aux.x_csect.x_snstab = 0; - if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD) - { - unsigned long indx; - - indx = aux.x_csect.x_scnlen.l; - if (indx < obj_raw_syment_count (input_bfd)) - { - long symindx; - - symindx = finfo->sym_indices[indx]; - if (symindx < 0) - aux.x_sym.x_tagndx.l = 0; - else - aux.x_sym.x_tagndx.l = symindx; - } - } - } - else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) - { - unsigned long indx; - - if (ISFCN (isymp->n_type) - || ISTAG (isymp->n_sclass) - || isymp->n_sclass == C_BLOCK - || isymp->n_sclass == C_FCN) - { - indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l; - if (indx > 0 - && indx < obj_raw_syment_count (input_bfd)) - { - /* We look forward through the symbol for - the index of the next symbol we are going - to include. I don't know if this is - entirely right. */ - while (finfo->sym_indices[indx] < 0 - && indx < obj_raw_syment_count (input_bfd)) - ++indx; - if (indx >= obj_raw_syment_count (input_bfd)) - indx = output_index; - else - indx = finfo->sym_indices[indx]; - aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx; - } - } - - indx = aux.x_sym.x_tagndx.l; - if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) - { - long symindx; - - symindx = finfo->sym_indices[indx]; - if (symindx < 0) - aux.x_sym.x_tagndx.l = 0; - else - aux.x_sym.x_tagndx.l = symindx; - } - } - - /* Copy over the line numbers, unless we are stripping - them. We do this on a symbol by symbol basis in - order to more easily handle garbage collection. */ - if ((isymp->n_sclass == C_EXT - || isymp->n_sclass == C_HIDEXT) - && i == 0 - && isymp->n_numaux > 1 - && ISFCN (isymp->n_type) - && aux.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) - { - if (finfo->info->strip != strip_none - && finfo->info->strip != strip_some) - aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0; - else - { - asection *enclosing; - unsigned int enc_count; - bfd_size_type linoff; - struct internal_lineno lin; - - o = *csectpp; - enclosing = xcoff_section_data (abfd, o)->enclosing; - enc_count = xcoff_section_data (abfd, o)->lineno_count; - if (oline != enclosing) - { - if (bfd_seek (input_bfd, - enclosing->line_filepos, - SEEK_SET) != 0 - || (bfd_read (finfo->linenos, linesz, - enc_count, input_bfd) - != linesz * enc_count)) - return false; - oline = enclosing; - } - - linoff = (aux.x_sym.x_fcnary.x_fcn.x_lnnoptr - - enclosing->line_filepos); - - bfd_coff_swap_lineno_in (input_bfd, - (PTR) (finfo->linenos + linoff), - (PTR) &lin); - if (lin.l_lnno != 0 - || ((bfd_size_type) lin.l_addr.l_symndx - != ((esym - - isymesz - - ((bfd_byte *) - obj_coff_external_syms (input_bfd))) - / isymesz))) - aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0; - else - { - bfd_byte *linpend, *linp; - bfd_vma offset; - bfd_size_type count; - - lin.l_addr.l_symndx = *indexp; - bfd_coff_swap_lineno_out (output_bfd, (PTR) &lin, - (PTR) (finfo->linenos - + linoff)); - - linpend = (finfo->linenos - + enc_count * linesz); - offset = (o->output_section->vma - + o->output_offset - - o->vma); - for (linp = finfo->linenos + linoff + linesz; - linp < linpend; - linp += linesz) - { - bfd_coff_swap_lineno_in (input_bfd, (PTR) linp, - (PTR) &lin); - if (lin.l_lnno == 0) - break; - lin.l_addr.l_paddr += offset; - bfd_coff_swap_lineno_out (output_bfd, - (PTR) &lin, - (PTR) linp); - } - - count = (linp - (finfo->linenos + linoff)) / linesz; - - aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = - (o->output_section->line_filepos - + o->output_section->lineno_count * linesz); - - if (bfd_seek (output_bfd, - aux.x_sym.x_fcnary.x_fcn.x_lnnoptr, - SEEK_SET) != 0 - || (bfd_write (finfo->linenos + linoff, - linesz, count, output_bfd) - != linesz * count)) - return false; - - o->output_section->lineno_count += count; - - if (incls > 0) - { - struct internal_syment *iisp, *iispend; - long *iindp; - bfd_byte *oos; - int iiadd; - - /* Update any C_BINCL or C_EINCL symbols - that refer to a line number in the - range we just output. */ - iisp = finfo->internal_syms; - iispend = (iisp - + obj_raw_syment_count (input_bfd)); - iindp = finfo->sym_indices; - oos = finfo->outsyms; - while (iisp < iispend) - { - if (*iindp >= 0 - && (iisp->n_sclass == C_BINCL - || iisp->n_sclass == C_EINCL) - && ((bfd_size_type) iisp->n_value - >= enclosing->line_filepos + linoff) - && ((bfd_size_type) iisp->n_value - < (enclosing->line_filepos - + enc_count * linesz))) - { - struct internal_syment iis; - - bfd_coff_swap_sym_in (output_bfd, - (PTR) oos, - (PTR) &iis); - iis.n_value = - (iisp->n_value - - enclosing->line_filepos - - linoff - + aux.x_sym.x_fcnary.x_fcn.x_lnnoptr); - bfd_coff_swap_sym_out (output_bfd, - (PTR) &iis, - (PTR) oos); - --incls; - } - - iiadd = 1 + iisp->n_numaux; - if (*iindp >= 0) - oos += iiadd * osymesz; - iisp += iiadd; - iindp += iiadd; - } - } - } - } - } - - bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, isymp->n_type, - isymp->n_sclass, i, isymp->n_numaux, - (PTR) outsym); - outsym += osymesz; - esym += isymesz; - } - } - - indexp += add; - isymp += add; - csectpp += add; - } - - /* If we swapped out a C_FILE symbol, guess that the next C_FILE - symbol will be the first symbol in the next input file. In the - normal case, this will save us from writing out the C_FILE symbol - again. */ - if (finfo->last_file_index != -1 - && (bfd_size_type) finfo->last_file_index >= syment_base) - { - finfo->last_file.n_value = output_index; - bfd_coff_swap_sym_out (output_bfd, (PTR) &finfo->last_file, - (PTR) (finfo->outsyms - + ((finfo->last_file_index - syment_base) - * osymesz))); - } - - /* Write the modified symbols to the output file. */ - if (outsym > finfo->outsyms) - { - if (bfd_seek (output_bfd, - obj_sym_filepos (output_bfd) + syment_base * osymesz, - SEEK_SET) != 0 - || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, - output_bfd) - != (bfd_size_type) (outsym - finfo->outsyms))) - return false; - - BFD_ASSERT ((obj_raw_syment_count (output_bfd) - + (outsym - finfo->outsyms) / osymesz) - == output_index); - - obj_raw_syment_count (output_bfd) = output_index; - } - - /* Don't let the linker relocation routines discard the symbols. */ - keep_syms = obj_coff_keep_syms (input_bfd); - obj_coff_keep_syms (input_bfd) = true; - - /* Relocate the contents of each section. */ - for (o = input_bfd->sections; o != NULL; o = o->next) - { - bfd_byte *contents; - - if (! o->linker_mark) - { - /* This section was omitted from the link. */ - continue; - } - - if ((o->flags & SEC_HAS_CONTENTS) == 0 - || o->_raw_size == 0 - || (o->flags & SEC_IN_MEMORY) != 0) - continue; - - /* We have set filepos correctly for the sections we created to - represent csects, so bfd_get_section_contents should work. */ - if (coff_section_data (input_bfd, o) != NULL - && coff_section_data (input_bfd, o)->contents != NULL) - contents = coff_section_data (input_bfd, o)->contents; - else - { - if (! bfd_get_section_contents (input_bfd, o, finfo->contents, - (file_ptr) 0, o->_raw_size)) - return false; - contents = finfo->contents; - } - - if ((o->flags & SEC_RELOC) != 0) - { - int target_index; - struct internal_reloc *internal_relocs; - struct internal_reloc *irel; - bfd_vma offset; - struct internal_reloc *irelend; - struct xcoff_link_hash_entry **rel_hash; - long r_symndx; - - /* Read in the relocs. */ - target_index = o->output_section->target_index; - internal_relocs = (xcoff_read_internal_relocs - (input_bfd, o, false, finfo->external_relocs, - true, - (finfo->section_info[target_index].relocs - + o->output_section->reloc_count))); - if (internal_relocs == NULL) - return false; - - /* Call processor specific code to relocate the section - contents. */ - if (! bfd_coff_relocate_section (output_bfd, finfo->info, - input_bfd, o, - contents, - internal_relocs, - finfo->internal_syms, - xcoff_data (input_bfd)->csects)) - return false; - - offset = o->output_section->vma + o->output_offset - o->vma; - irel = internal_relocs; - irelend = irel + o->reloc_count; - rel_hash = (finfo->section_info[target_index].rel_hashes - + o->output_section->reloc_count); - for (; irel < irelend; irel++, rel_hash++) - { - struct xcoff_link_hash_entry *h = NULL; - struct internal_ldrel ldrel; - boolean quiet; - - *rel_hash = NULL; - - /* Adjust the reloc address and symbol index. */ - - irel->r_vaddr += offset; - - r_symndx = irel->r_symndx; - - if (r_symndx == -1) - h = NULL; - else - h = obj_xcoff_sym_hashes (input_bfd)[r_symndx]; - - if (r_symndx != -1 && finfo->info->strip != strip_all) - { - if (h != NULL - && h->smclas != XMC_TD - && (irel->r_type == R_TOC - || irel->r_type == R_GL - || irel->r_type == R_TCL - || irel->r_type == R_TRL - || irel->r_type == R_TRLA)) - { - /* This is a TOC relative reloc with a symbol - attached. The symbol should be the one which - this reloc is for. We want to make this - reloc against the TOC address of the symbol, - not the symbol itself. */ - BFD_ASSERT (h->toc_section != NULL); - BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); - if (h->u.toc_indx != -1) - irel->r_symndx = h->u.toc_indx; - else - { - struct xcoff_toc_rel_hash *n; - struct xcoff_link_section_info *si; - - n = ((struct xcoff_toc_rel_hash *) - bfd_alloc (finfo->output_bfd, - sizeof (struct xcoff_toc_rel_hash))); - if (n == NULL) - return false; - si = finfo->section_info + target_index; - n->next = si->toc_rel_hashes; - n->h = h; - n->rel = irel; - si->toc_rel_hashes = n; - } - } - else if (h != NULL) - { - /* This is a global symbol. */ - if (h->indx >= 0) - irel->r_symndx = h->indx; - else - { - /* This symbol is being written at the end - of the file, and we do not yet know the - symbol index. We save the pointer to the - hash table entry in the rel_hash list. - We set the indx field to -2 to indicate - that this symbol must not be stripped. */ - *rel_hash = h; - h->indx = -2; - } - } - else - { - long indx; - - indx = finfo->sym_indices[r_symndx]; - - if (indx == -1) - { - struct internal_syment *is; - - /* Relocations against a TC0 TOC anchor are - automatically transformed to be against - the TOC anchor in the output file. */ - is = finfo->internal_syms + r_symndx; - if (is->n_sclass == C_HIDEXT - && is->n_numaux > 0) - { - PTR auxptr; - union internal_auxent aux; - - auxptr = ((PTR) - (((bfd_byte *) - obj_coff_external_syms (input_bfd)) - + ((r_symndx + is->n_numaux) - * isymesz))); - bfd_coff_swap_aux_in (input_bfd, auxptr, - is->n_type, is->n_sclass, - is->n_numaux - 1, - is->n_numaux, - (PTR) &aux); - if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD - && aux.x_csect.x_smclas == XMC_TC0) - indx = finfo->toc_symindx; - } - } - - if (indx != -1) - irel->r_symndx = indx; - else - { - struct internal_syment *is; - const char *name; - char buf[SYMNMLEN + 1]; - - /* This reloc is against a symbol we are - stripping. It would be possible to handle - this case, but I don't think it's worth it. */ - is = finfo->internal_syms + r_symndx; - - name = (_bfd_coff_internal_syment_name - (input_bfd, is, buf)); - if (name == NULL) - return false; - - if (! ((*finfo->info->callbacks->unattached_reloc) - (finfo->info, name, input_bfd, o, - irel->r_vaddr))) - return false; - } - } - } - - quiet = false; - switch (irel->r_type) - { - default: - if (h == NULL - || h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak - || h->root.type == bfd_link_hash_common) - break; - /* Fall through. */ - case R_POS: - case R_NEG: - case R_RL: - case R_RLA: - /* This reloc needs to be copied into the .loader - section. */ - ldrel.l_vaddr = irel->r_vaddr; - if (r_symndx == -1) - ldrel.l_symndx = -1; - else if (h == NULL - || (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak - || h->root.type == bfd_link_hash_common)) - { - asection *sec; - - if (h == NULL) - sec = xcoff_data (input_bfd)->csects[r_symndx]; - else if (h->root.type == bfd_link_hash_common) - sec = h->root.u.c.p->section; - else - sec = h->root.u.def.section; - sec = sec->output_section; - - if (strcmp (sec->name, ".text") == 0) - ldrel.l_symndx = 0; - else if (strcmp (sec->name, ".data") == 0) - ldrel.l_symndx = 1; - else if (strcmp (sec->name, ".bss") == 0) - ldrel.l_symndx = 2; - else - { - (*_bfd_error_handler) - (_("%s: loader reloc in unrecognized section `%s'"), - bfd_get_filename (input_bfd), - sec->name); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - } - else - { - if (! finfo->info->relocateable - && (h->flags & XCOFF_DEF_DYNAMIC) == 0 - && (h->flags & XCOFF_IMPORT) == 0) - { - /* We already called the undefined_symbol - callback for this relocation, in - _bfd_ppc_xcoff_relocate_section. Don't - issue any more warnings. */ - quiet = true; - } - if (h->ldindx < 0 && ! quiet) - { - (*_bfd_error_handler) - (_("%s: `%s' in loader reloc but not loader sym"), - bfd_get_filename (input_bfd), - h->root.root.string); - bfd_set_error (bfd_error_bad_value); - return false; - } - ldrel.l_symndx = h->ldindx; - } - ldrel.l_rtype = (irel->r_size << 8) | irel->r_type; - ldrel.l_rsecnm = o->output_section->target_index; - if (xcoff_hash_table (finfo->info)->textro - && strcmp (o->output_section->name, ".text") == 0 - && ! quiet) - { - (*_bfd_error_handler) - (_("%s: loader reloc in read-only section %s"), - bfd_get_filename (input_bfd), - bfd_get_section_name (finfo->output_bfd, - o->output_section)); - bfd_set_error (bfd_error_invalid_operation); - return false; - } - xcoff_swap_ldrel_out (output_bfd, &ldrel, - finfo->ldrel); - BFD_ASSERT (sizeof (struct external_ldrel) == LDRELSZ); - ++finfo->ldrel; - break; - - case R_TOC: - case R_GL: - case R_TCL: - case R_TRL: - case R_TRLA: - /* We should never need a .loader reloc for a TOC - relative reloc. */ - break; - } - } - - o->output_section->reloc_count += o->reloc_count; - } - - /* Write out the modified section contents. */ - if (! bfd_set_section_contents (output_bfd, o->output_section, - contents, o->output_offset, - (o->_cooked_size != 0 - ? o->_cooked_size - : o->_raw_size))) - return false; - } - - obj_coff_keep_syms (input_bfd) = keep_syms; - - if (! finfo->info->keep_memory) - { - if (! _bfd_coff_free_symbols (input_bfd)) - return false; - } - - return true; -} - -#undef N_TMASK -#undef N_BTSHFT - -/* Write out a non-XCOFF global symbol. */ - -static boolean -xcoff_write_global_symbol (h, p) - struct xcoff_link_hash_entry *h; - PTR p; -{ - struct xcoff_final_link_info *finfo = (struct xcoff_final_link_info *) p; - bfd *output_bfd; - bfd_byte *outsym; - struct internal_syment isym; - union internal_auxent aux; - - output_bfd = finfo->output_bfd; - outsym = finfo->outsyms; - - /* If this symbol was garbage collected, just skip it. */ - if (xcoff_hash_table (finfo->info)->gc - && (h->flags & XCOFF_MARK) == 0) - return true; - - /* If we need a .loader section entry, write it out. */ - if (h->ldsym != NULL) - { - struct internal_ldsym *ldsym; - bfd *impbfd; - - ldsym = h->ldsym; - - if (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - { - ldsym->l_value = 0; - ldsym->l_scnum = N_UNDEF; - ldsym->l_smtype = XTY_ER; - impbfd = h->root.u.undef.abfd; - } - else if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *sec; - - sec = h->root.u.def.section; - ldsym->l_value = (sec->output_section->vma - + sec->output_offset - + h->root.u.def.value); - ldsym->l_scnum = sec->output_section->target_index; - ldsym->l_smtype = XTY_SD; - impbfd = sec->owner; - } - else - abort (); - - if (((h->flags & XCOFF_DEF_REGULAR) == 0 - && (h->flags & XCOFF_DEF_DYNAMIC) != 0) - || (h->flags & XCOFF_IMPORT) != 0) - ldsym->l_smtype |= L_IMPORT; - if (((h->flags & XCOFF_DEF_REGULAR) != 0 - && (h->flags & XCOFF_DEF_DYNAMIC) != 0) - || (h->flags & XCOFF_EXPORT) != 0) - ldsym->l_smtype |= L_EXPORT; - if ((h->flags & XCOFF_ENTRY) != 0) - ldsym->l_smtype |= L_ENTRY; - - ldsym->l_smclas = h->smclas; - - if (ldsym->l_ifile == (bfd_size_type) -1) - ldsym->l_ifile = 0; - else if (ldsym->l_ifile == 0) - { - if ((ldsym->l_smtype & L_IMPORT) == 0) - ldsym->l_ifile = 0; - else if (impbfd == NULL) - ldsym->l_ifile = 0; - else - { - BFD_ASSERT (impbfd->xvec == output_bfd->xvec); - ldsym->l_ifile = xcoff_data (impbfd)->import_file_id; - } - } - - ldsym->l_parm = 0; - - BFD_ASSERT (h->ldindx >= 0); - BFD_ASSERT (LDSYMSZ == sizeof (struct external_ldsym)); - xcoff_swap_ldsym_out (output_bfd, ldsym, finfo->ldsym + h->ldindx - 3); - h->ldsym = NULL; - } - - /* If this symbol needs global linkage code, write it out. */ - if (h->root.type == bfd_link_hash_defined - && (h->root.u.def.section - == xcoff_hash_table (finfo->info)->linkage_section)) - { - bfd_byte *p; - bfd_vma tocoff; - unsigned int i; - - p = h->root.u.def.section->contents + h->root.u.def.value; - - /* The first instruction in the global linkage code loads a - specific TOC element. */ - tocoff = (h->descriptor->toc_section->output_section->vma - + h->descriptor->toc_section->output_offset - - xcoff_data (output_bfd)->toc); - if ((h->descriptor->flags & XCOFF_SET_TOC) != 0) - tocoff += h->descriptor->u.toc_offset; - bfd_put_32 (output_bfd, XCOFF_GLINK_FIRST | (tocoff & 0xffff), p); - for (i = 0, p += 4; - i < sizeof xcoff_glink_code / sizeof xcoff_glink_code[0]; - i++, p += 4) - bfd_put_32 (output_bfd, xcoff_glink_code[i], p); - } - - /* If we created a TOC entry for this symbol, write out the required - relocs. */ - if ((h->flags & XCOFF_SET_TOC) != 0) - { - asection *tocsec; - asection *osec; - int oindx; - struct internal_reloc *irel; - struct internal_ldrel ldrel; - struct internal_syment irsym; - union internal_auxent iraux; - - tocsec = h->toc_section; - osec = tocsec->output_section; - oindx = osec->target_index; - irel = finfo->section_info[oindx].relocs + osec->reloc_count; - irel->r_vaddr = (osec->vma - + tocsec->output_offset - + h->u.toc_offset); - if (h->indx >= 0) - irel->r_symndx = h->indx; - else - { - h->indx = -2; - irel->r_symndx = obj_raw_syment_count (output_bfd); - } - irel->r_type = R_POS; - irel->r_size = 31; - finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; - ++osec->reloc_count; - - BFD_ASSERT (h->ldindx >= 0); - ldrel.l_vaddr = irel->r_vaddr; - ldrel.l_symndx = h->ldindx; - ldrel.l_rtype = (31 << 8) | R_POS; - ldrel.l_rsecnm = oindx; - xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); - ++finfo->ldrel; - - /* We need to emit a symbol to define a csect which holds the - reloc. */ - if (finfo->info->strip != strip_all) - { - if (strlen (h->root.root.string) <= SYMNMLEN) - strncpy (irsym._n._n_name, h->root.root.string, SYMNMLEN); - else - { - boolean hash; - bfd_size_type indx; - - hash = true; - if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) - hash = false; - indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, - hash, false); - if (indx == (bfd_size_type) -1) - return false; - irsym._n._n_n._n_zeroes = 0; - irsym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; - } - - irsym.n_value = irel->r_vaddr; - irsym.n_scnum = osec->target_index; - irsym.n_sclass = C_HIDEXT; - irsym.n_type = T_NULL; - irsym.n_numaux = 1; - - bfd_coff_swap_sym_out (output_bfd, (PTR) &irsym, (PTR) outsym); - outsym += bfd_coff_symesz (output_bfd); - - memset (&iraux, 0, sizeof iraux); - iraux.x_csect.x_smtyp = XTY_SD; - iraux.x_csect.x_scnlen.l = 4; - iraux.x_csect.x_smclas = XMC_TC; - - bfd_coff_swap_aux_out (output_bfd, (PTR) &iraux, T_NULL, C_HIDEXT, - 0, 1, (PTR) outsym); - outsym += bfd_coff_auxesz (output_bfd); - - if (h->indx >= 0) - { - /* We aren't going to write out the symbols below, so we - need to write them out now. */ - if (bfd_seek (output_bfd, - (obj_sym_filepos (output_bfd) - + (obj_raw_syment_count (output_bfd) - * bfd_coff_symesz (output_bfd))), - SEEK_SET) != 0 - || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, - output_bfd) - != (bfd_size_type) (outsym - finfo->outsyms))) - return false; - obj_raw_syment_count (output_bfd) += - (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd); - - outsym = finfo->outsyms; - } - } - } - - /* If this symbol is a specially defined function descriptor, write - it out. The first word is the address of the function code - itself, the second word is the address of the TOC, and the third - word is zero. */ - if ((h->flags & XCOFF_DESCRIPTOR) != 0 - && h->root.type == bfd_link_hash_defined - && (h->root.u.def.section - == xcoff_hash_table (finfo->info)->descriptor_section)) - { - asection *sec; - asection *osec; - int oindx; - bfd_byte *p; - struct xcoff_link_hash_entry *hentry; - asection *esec; - struct internal_reloc *irel; - struct internal_ldrel ldrel; - asection *tsec; - - sec = h->root.u.def.section; - osec = sec->output_section; - oindx = osec->target_index; - p = sec->contents + h->root.u.def.value; - - hentry = h->descriptor; - BFD_ASSERT (hentry != NULL - && (hentry->root.type == bfd_link_hash_defined - || hentry->root.type == bfd_link_hash_defweak)); - esec = hentry->root.u.def.section; - bfd_put_32 (output_bfd, - (esec->output_section->vma - + esec->output_offset - + hentry->root.u.def.value), - p); - - irel = finfo->section_info[oindx].relocs + osec->reloc_count; - irel->r_vaddr = (osec->vma - + sec->output_offset - + h->root.u.def.value); - irel->r_symndx = esec->output_section->target_index; - irel->r_type = R_POS; - irel->r_size = 31; - finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; - ++osec->reloc_count; - - ldrel.l_vaddr = irel->r_vaddr; - if (strcmp (esec->output_section->name, ".text") == 0) - ldrel.l_symndx = 0; - else if (strcmp (esec->output_section->name, ".data") == 0) - ldrel.l_symndx = 1; - else if (strcmp (esec->output_section->name, ".bss") == 0) - ldrel.l_symndx = 2; - else - { - (*_bfd_error_handler) - (_("%s: loader reloc in unrecognized section `%s'"), - bfd_get_filename (output_bfd), - esec->output_section->name); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - ldrel.l_rtype = (31 << 8) | R_POS; - ldrel.l_rsecnm = oindx; - xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); - ++finfo->ldrel; - - bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4); - - tsec = coff_section_from_bfd_index (output_bfd, - xcoff_data (output_bfd)->sntoc); - - ++irel; - irel->r_vaddr = (osec->vma - + sec->output_offset - + h->root.u.def.value - + 4); - irel->r_symndx = tsec->output_section->target_index; - irel->r_type = R_POS; - irel->r_size = 31; - finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL; - ++osec->reloc_count; - - ldrel.l_vaddr = irel->r_vaddr; - if (strcmp (tsec->output_section->name, ".text") == 0) - ldrel.l_symndx = 0; - else if (strcmp (tsec->output_section->name, ".data") == 0) - ldrel.l_symndx = 1; - else if (strcmp (tsec->output_section->name, ".bss") == 0) - ldrel.l_symndx = 2; - else - { - (*_bfd_error_handler) - (_("%s: loader reloc in unrecognized section `%s'"), - bfd_get_filename (output_bfd), - tsec->output_section->name); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - ldrel.l_rtype = (31 << 8) | R_POS; - ldrel.l_rsecnm = oindx; - xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); - ++finfo->ldrel; - } - - if (h->indx >= 0 || finfo->info->strip == strip_all) - { - BFD_ASSERT (outsym == finfo->outsyms); - return true; - } - - if (h->indx != -2 - && (finfo->info->strip == strip_all - || (finfo->info->strip == strip_some - && (bfd_hash_lookup (finfo->info->keep_hash, - h->root.root.string, false, false) - == NULL)))) - { - BFD_ASSERT (outsym == finfo->outsyms); - return true; - } - - if (h->indx != -2 - && (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0) - { - BFD_ASSERT (outsym == finfo->outsyms); - return true; - } - - memset (&aux, 0, sizeof aux); - - h->indx = obj_raw_syment_count (output_bfd); - - if (strlen (h->root.root.string) <= SYMNMLEN) - strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN); - else - { - boolean hash; - bfd_size_type indx; - - hash = true; - if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) - hash = false; - indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash, - false); - if (indx == (bfd_size_type) -1) - return false; - isym._n._n_n._n_zeroes = 0; - isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; - } - - if (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - { - isym.n_value = 0; - isym.n_scnum = N_UNDEF; - isym.n_sclass = C_EXT; - aux.x_csect.x_smtyp = XTY_ER; - } - else if ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && h->smclas == XMC_XO) - { - BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section)); - isym.n_value = h->root.u.def.value; - isym.n_scnum = N_UNDEF; - isym.n_sclass = C_EXT; - aux.x_csect.x_smtyp = XTY_ER; - } - else if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - struct xcoff_link_size_list *l; - - isym.n_value = (h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset - + h->root.u.def.value); - isym.n_scnum = h->root.u.def.section->output_section->target_index; - isym.n_sclass = C_HIDEXT; - aux.x_csect.x_smtyp = XTY_SD; - - if ((h->flags & XCOFF_HAS_SIZE) != 0) - { - for (l = xcoff_hash_table (finfo->info)->size_list; - l != NULL; - l = l->next) - { - if (l->h == h) - { - aux.x_csect.x_scnlen.l = l->size; - break; - } - } - } - } - else if (h->root.type == bfd_link_hash_common) - { - isym.n_value = (h->root.u.c.p->section->output_section->vma - + h->root.u.c.p->section->output_offset); - isym.n_scnum = h->root.u.c.p->section->output_section->target_index; - isym.n_sclass = C_EXT; - aux.x_csect.x_smtyp = XTY_CM; - aux.x_csect.x_scnlen.l = h->root.u.c.size; - } - else - abort (); - - isym.n_type = T_NULL; - isym.n_numaux = 1; - - bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym); - outsym += bfd_coff_symesz (output_bfd); - - aux.x_csect.x_smclas = h->smclas; - - bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, isym.n_sclass, 0, 1, - (PTR) outsym); - outsym += bfd_coff_auxesz (output_bfd); - - if ((h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && h->smclas != XMC_XO) - { - /* We just output an SD symbol. Now output an LD symbol. */ - - h->indx += 2; - - isym.n_sclass = C_EXT; - bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym); - outsym += bfd_coff_symesz (output_bfd); - - aux.x_csect.x_smtyp = XTY_LD; - aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd); - - bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, C_EXT, 0, 1, - (PTR) outsym); - outsym += bfd_coff_auxesz (output_bfd); - } - - if (bfd_seek (output_bfd, - (obj_sym_filepos (output_bfd) - + (obj_raw_syment_count (output_bfd) - * bfd_coff_symesz (output_bfd))), - SEEK_SET) != 0 - || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, output_bfd) - != (bfd_size_type) (outsym - finfo->outsyms))) - return false; - obj_raw_syment_count (output_bfd) += - (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd); - - return true; -} - -/* Handle a link order which is supposed to generate a reloc. */ - -static boolean -xcoff_reloc_link_order (output_bfd, finfo, output_section, link_order) - bfd *output_bfd; - struct xcoff_final_link_info *finfo; - asection *output_section; - struct bfd_link_order *link_order; -{ - reloc_howto_type *howto; - struct xcoff_link_hash_entry *h; - asection *hsec; - bfd_vma hval; - bfd_vma addend; - struct internal_reloc *irel; - struct xcoff_link_hash_entry **rel_hash_ptr; - struct internal_ldrel ldrel; - - if (link_order->type == bfd_section_reloc_link_order) - { - /* We need to somehow locate a symbol in the right section. The - symbol must either have a value of zero, or we must adjust - the addend by the value of the symbol. FIXME: Write this - when we need it. The old linker couldn't handle this anyhow. */ - abort (); - } - - howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); - if (howto == NULL) - { - bfd_set_error (bfd_error_bad_value); - return false; - } - - h = ((struct xcoff_link_hash_entry *) - bfd_wrapped_link_hash_lookup (output_bfd, finfo->info, - link_order->u.reloc.p->u.name, - false, false, true)); - if (h == NULL) - { - if (! ((*finfo->info->callbacks->unattached_reloc) - (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL, - (asection *) NULL, (bfd_vma) 0))) - return false; - return true; - } - - if (h->root.type == bfd_link_hash_common) - { - hsec = h->root.u.c.p->section; - hval = 0; - } - else if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - hsec = h->root.u.def.section; - hval = h->root.u.def.value; - } - else - { - hsec = NULL; - hval = 0; - } - - addend = link_order->u.reloc.p->addend; - if (hsec != NULL) - addend += (hsec->output_section->vma - + hsec->output_offset - + hval); - - if (addend != 0) - { - bfd_size_type size; - bfd_byte *buf; - bfd_reloc_status_type rstat; - boolean ok; - - size = bfd_get_reloc_size (howto); - buf = (bfd_byte *) bfd_zmalloc (size); - if (buf == NULL) - return false; - - rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf); - switch (rstat) - { - case bfd_reloc_ok: - break; - default: - case bfd_reloc_outofrange: - abort (); - case bfd_reloc_overflow: - if (! ((*finfo->info->callbacks->reloc_overflow) - (finfo->info, link_order->u.reloc.p->u.name, - howto->name, addend, (bfd *) NULL, (asection *) NULL, - (bfd_vma) 0))) - { - free (buf); - return false; - } - break; - } - ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, - (file_ptr) link_order->offset, size); - free (buf); - if (! ok) - return false; - } - - /* Store the reloc information in the right place. It will get - swapped and written out at the end of the final_link routine. */ - - irel = (finfo->section_info[output_section->target_index].relocs - + output_section->reloc_count); - rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes - + output_section->reloc_count); - - memset (irel, 0, sizeof (struct internal_reloc)); - *rel_hash_ptr = NULL; - - irel->r_vaddr = output_section->vma + link_order->offset; - - if (h->indx >= 0) - irel->r_symndx = h->indx; - else - { - /* Set the index to -2 to force this symbol to get written out. */ - h->indx = -2; - *rel_hash_ptr = h; - irel->r_symndx = 0; - } - - irel->r_type = howto->type; - irel->r_size = howto->bitsize - 1; - if (howto->complain_on_overflow == complain_overflow_signed) - irel->r_size |= 0x80; - - ++output_section->reloc_count; - - /* Now output the reloc to the .loader section. */ - - ldrel.l_vaddr = irel->r_vaddr; - - if (hsec != NULL) - { - const char *secname; - - secname = hsec->output_section->name; - - if (strcmp (secname, ".text") == 0) - ldrel.l_symndx = 0; - else if (strcmp (secname, ".data") == 0) - ldrel.l_symndx = 1; - else if (strcmp (secname, ".bss") == 0) - ldrel.l_symndx = 2; - else - { - (*_bfd_error_handler) - (_("%s: loader reloc in unrecognized section `%s'"), - bfd_get_filename (output_bfd), secname); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - } - else - { - if (h->ldindx < 0) - { - (*_bfd_error_handler) - (_("%s: `%s' in loader reloc but not loader sym"), - bfd_get_filename (output_bfd), - h->root.root.string); - bfd_set_error (bfd_error_bad_value); - return false; - } - ldrel.l_symndx = h->ldindx; - } - - ldrel.l_rtype = (irel->r_size << 8) | irel->r_type; - ldrel.l_rsecnm = output_section->target_index; - xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel); - ++finfo->ldrel; - - return true; -} - -/* Sort relocs by VMA. This is called via qsort. */ - -static int -xcoff_sort_relocs (p1, p2) - const PTR p1; - const PTR p2; -{ - const struct internal_reloc *r1 = (const struct internal_reloc *) p1; - const struct internal_reloc *r2 = (const struct internal_reloc *) p2; - - if (r1->r_vaddr > r2->r_vaddr) - return 1; - else if (r1->r_vaddr < r2->r_vaddr) - return -1; - else - return 0; -} - -/* This is the relocation function for the RS/6000/POWER/PowerPC. - This is currently the only processor which uses XCOFF; I hope that - will never change. */ - -boolean -_bfd_ppc_xcoff_relocate_section (output_bfd, info, input_bfd, - input_section, contents, relocs, syms, - sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - struct internal_reloc *relocs; - struct internal_syment *syms; - asection **sections; -{ - struct internal_reloc *rel; - struct internal_reloc *relend; - - rel = relocs; - relend = rel + input_section->reloc_count; - for (; rel < relend; rel++) - { - long symndx; - struct xcoff_link_hash_entry *h; - struct internal_syment *sym; - bfd_vma addend; - bfd_vma val; - struct reloc_howto_struct howto; - bfd_reloc_status_type rstat; - - /* Relocation type R_REF is a special relocation type which is - merely used to prevent garbage collection from occurring for - the csect including the symbol which it references. */ - if (rel->r_type == R_REF) - continue; - - symndx = rel->r_symndx; - - if (symndx == -1) - { - h = NULL; - sym = NULL; - addend = 0; - } - else - { - h = obj_xcoff_sym_hashes (input_bfd)[symndx]; - sym = syms + symndx; - addend = - sym->n_value; - } - - /* We build the howto information on the fly. */ - - howto.type = rel->r_type; - howto.rightshift = 0; - howto.size = 2; - howto.bitsize = (rel->r_size & 0x1f) + 1; - howto.pc_relative = false; - howto.bitpos = 0; - if ((rel->r_size & 0x80) != 0) - howto.complain_on_overflow = complain_overflow_signed; - else - howto.complain_on_overflow = complain_overflow_bitfield; - howto.special_function = NULL; - howto.name = "internal"; - howto.partial_inplace = true; - if (howto.bitsize == 32) - howto.src_mask = howto.dst_mask = 0xffffffff; - else - { - howto.src_mask = howto.dst_mask = (1 << howto.bitsize) - 1; - if (howto.bitsize == 16) - howto.size = 1; - } - howto.pcrel_offset = false; - - val = 0; - - if (h == NULL) - { - asection *sec; - - if (symndx == -1) - { - sec = bfd_abs_section_ptr; - val = 0; - } - else - { - sec = sections[symndx]; - /* Hack to make sure we use the right TOC anchor value - if this reloc is against the TOC anchor. */ - if (sec->name[3] == '0' - && strcmp (sec->name, ".tc0") == 0) - val = xcoff_data (output_bfd)->toc; - else - val = (sec->output_section->vma - + sec->output_offset - + sym->n_value - - sec->vma); - } - } - else - { - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - asection *sec; - - sec = h->root.u.def.section; - val = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } - else if (h->root.type == bfd_link_hash_common) - { - asection *sec; - - sec = h->root.u.c.p->section; - val = (sec->output_section->vma - + sec->output_offset); - } - else if ((h->flags & XCOFF_DEF_DYNAMIC) != 0 - || (h->flags & XCOFF_IMPORT) != 0) - { - /* Every symbol in a shared object is defined somewhere. */ - val = 0; - } - else if (! info->relocateable) - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, input_section, - rel->r_vaddr - input_section->vma, true))) - return false; - - /* Don't try to process the reloc. It can't help, and - it may generate another error. */ - continue; - } - } - - /* I took the relocation type definitions from two documents: - the PowerPC AIX Version 4 Application Binary Interface, First - Edition (April 1992), and the PowerOpen ABI, Big-Endian - 32-Bit Hardware Implementation (June 30, 1994). Differences - between the documents are noted below. */ - - switch (rel->r_type) - { - case R_RTB: - case R_RRTBI: - case R_RRTBA: - /* These relocs are defined by the PowerPC ABI to be - relative branches which use half of the difference - between the symbol and the program counter. I can't - quite figure out when this is useful. These relocs are - not defined by the PowerOpen ABI. */ - default: - (*_bfd_error_handler) - (_("%s: unsupported relocation type 0x%02x"), - bfd_get_filename (input_bfd), (unsigned int) rel->r_type); - bfd_set_error (bfd_error_bad_value); - return false; - case R_POS: - /* Simple positive relocation. */ - break; - case R_NEG: - /* Simple negative relocation. */ - val = - val; - break; - case R_REL: - /* Simple PC relative relocation. */ - howto.pc_relative = true; - break; - case R_TOC: - /* TOC relative relocation. The value in the instruction in - the input file is the offset from the input file TOC to - the desired location. We want the offset from the final - TOC to the desired location. We have: - isym = iTOC + in - iinsn = in + o - osym = oTOC + on - oinsn = on + o - so we must change insn by on - in. - */ - case R_GL: - /* Global linkage relocation. The value of this relocation - is the address of the entry in the TOC section. */ - case R_TCL: - /* Local object TOC address. I can't figure out the - difference between this and case R_GL. */ - case R_TRL: - /* TOC relative relocation. A TOC relative load instruction - which may be changed to a load address instruction. - FIXME: We don't currently implement this optimization. */ - case R_TRLA: - /* TOC relative relocation. This is a TOC relative load - address instruction which may be changed to a load - instruction. FIXME: I don't know if this is the correct - implementation. */ - if (h != NULL && h->smclas != XMC_TD) - { - if (h->toc_section == NULL) - { - (*_bfd_error_handler) - (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"), - bfd_get_filename (input_bfd), rel->r_vaddr, - h->root.root.string); - bfd_set_error (bfd_error_bad_value); - return false; - } - - BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); - val = (h->toc_section->output_section->vma - + h->toc_section->output_offset); - } - - val = ((val - xcoff_data (output_bfd)->toc) - - (sym->n_value - xcoff_data (input_bfd)->toc)); - addend = 0; - break; - case R_BA: - /* Absolute branch. We don't want to mess with the lower - two bits of the instruction. */ - case R_CAI: - /* The PowerPC ABI defines this as an absolute call which - may be modified to become a relative call. The PowerOpen - ABI does not define this relocation type. */ - case R_RBA: - /* Absolute branch which may be modified to become a - relative branch. */ - case R_RBAC: - /* The PowerPC ABI defines this as an absolute branch to a - fixed address which may be modified to an absolute branch - to a symbol. The PowerOpen ABI does not define this - relocation type. */ - case R_RBRC: - /* The PowerPC ABI defines this as an absolute branch to a - fixed address which may be modified to a relative branch. - The PowerOpen ABI does not define this relocation type. */ - howto.src_mask &= ~3; - howto.dst_mask = howto.src_mask; - break; - case R_BR: - /* Relative branch. We don't want to mess with the lower - two bits of the instruction. */ - case R_CREL: - /* The PowerPC ABI defines this as a relative call which may - be modified to become an absolute call. The PowerOpen - ABI does not define this relocation type. */ - case R_RBR: - /* A relative branch which may be modified to become an - absolute branch. FIXME: We don't implement this, - although we should for symbols of storage mapping class - XMC_XO. */ - howto.pc_relative = true; - howto.src_mask &= ~3; - howto.dst_mask = howto.src_mask; - break; - case R_RL: - /* The PowerPC AIX ABI describes this as a load which may be - changed to a load address. The PowerOpen ABI says this - is the same as case R_POS. */ - break; - case R_RLA: - /* The PowerPC AIX ABI describes this as a load address - which may be changed to a load. The PowerOpen ABI says - this is the same as R_POS. */ - break; - } - - /* If we see an R_BR or R_RBR reloc which is jumping to global - linkage code, and it is followed by an appropriate cror nop - instruction, we replace the cror with lwz r2,20(r1). This - restores the TOC after the glink code. Contrariwise, if the - call is followed by a lwz r2,20(r1), but the call is not - going to global linkage code, we can replace the load with a - cror. */ - if ((rel->r_type == R_BR || rel->r_type == R_RBR) - && h != NULL - && h->root.type == bfd_link_hash_defined - && (rel->r_vaddr - input_section->vma + 8 - <= input_section->_cooked_size)) - { - bfd_byte *pnext; - unsigned long next; - - pnext = contents + (rel->r_vaddr - input_section->vma) + 4; - next = bfd_get_32 (input_bfd, pnext); - - /* The _ptrgl function is magic. It is used by the AIX - compiler to call a function through a pointer. */ - if (h->smclas == XMC_GL - || strcmp (h->root.root.string, "._ptrgl") == 0) - { - if (next == 0x4def7b82 /* cror 15,15,15 */ - || next == 0x4ffffb82 /* cror 31,31,31 */ - || next == 0x60000000) /* ori r0,r0,0 */ - bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r1,20(r1) */ - } - else - { - if (next == 0x80410014) /* lwz r1,20(r1) */ - bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */ - } - } - - /* A PC relative reloc includes the section address. */ - if (howto.pc_relative) - addend += input_section->vma; - - rstat = _bfd_final_link_relocate (&howto, input_bfd, input_section, - contents, - rel->r_vaddr - input_section->vma, - val, addend); - - switch (rstat) - { - default: - abort (); - case bfd_reloc_ok: - break; - case bfd_reloc_overflow: - { - const char *name; - char buf[SYMNMLEN + 1]; - char howto_name[10]; - - if (symndx == -1) - name = "*ABS*"; - else if (h != NULL) - name = h->root.root.string; - else - { - name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); - if (name == NULL) - return false; - } - sprintf (howto_name, "0x%02x", rel->r_type); - - if (! ((*info->callbacks->reloc_overflow) - (info, name, howto_name, (bfd_vma) 0, input_bfd, - input_section, rel->r_vaddr - input_section->vma))) - return false; - } - } - } - - return true; -} |