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Diffstat (limited to 'contrib/gcc/config/arm/elf.h')
| -rw-r--r-- | contrib/gcc/config/arm/elf.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/contrib/gcc/config/arm/elf.h b/contrib/gcc/config/arm/elf.h new file mode 100644 index 000000000000..c27dacaa58bf --- /dev/null +++ b/contrib/gcc/config/arm/elf.h @@ -0,0 +1,197 @@ +/* Definitions of target machine for GNU compiler. + For ARM with ELF obj format. + Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001 + Free Software Foundation, Inc. + Contributed by Philip Blundell <philb@gnu.org> and + Catherine Moore <clm@cygnus.com> + +This file is part of GNU CC. + +GNU CC 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, or (at your option) +any later version. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#ifndef OBJECT_FORMAT_ELF + #error elf.h included before elfos.h +#endif + +#ifndef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." +#endif + +#ifndef SUBTARGET_CPP_SPEC +#define SUBTARGET_CPP_SPEC "-D__ELF__" +#endif + +#ifndef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, +#endif + +#ifndef SUBTARGET_EXTRA_ASM_SPEC +#define SUBTARGET_EXTRA_ASM_SPEC "" +#endif + +#ifndef ASM_SPEC +#define ASM_SPEC "\ +%{mbig-endian:-EB} \ +%{mcpu=*:-m%*} \ +%{march=*:-m%*} \ +%{mapcs-*:-mapcs-%*} \ +%{mapcs-float:-mfloat} \ +%{msoft-float:-mno-fpu} \ +%{mthumb-interwork:-mthumb-interwork} \ +%(subtarget_extra_asm_spec)" +#endif + +/* The ARM uses @ are a comment character so we need to redefine + TYPE_OPERAND_FMT. */ +#undef TYPE_OPERAND_FMT +#define TYPE_OPERAND_FMT "%s" + +/* We might need a ARM specific header to function declarations. */ +#undef ASM_DECLARE_FUNCTION_NAME +#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ + do \ + { \ + ARM_DECLARE_FUNCTION_NAME (FILE, NAME, DECL); \ + fprintf (FILE, "%s", TYPE_ASM_OP); \ + assemble_name (FILE, NAME); \ + putc (',', FILE); \ + fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ + putc ('\n', FILE); \ + ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ + ASM_OUTPUT_LABEL(FILE, NAME); \ + } \ + while (0) + +/* We might need an ARM specific trailer for function declarations. */ +#undef ASM_DECLARE_FUNCTION_SIZE +#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ + do \ + { \ + ARM_DECLARE_FUNCTION_SIZE (FILE, FNAME, DECL); \ + if (!flag_inhibit_size_directive) \ + { \ + char label[256]; \ + static int labelno; \ + labelno ++; \ + ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ + ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ + fprintf (FILE, "%s", SIZE_ASM_OP); \ + assemble_name (FILE, (FNAME)); \ + fprintf (FILE, ","); \ + assemble_name (FILE, label); \ + fprintf (FILE, "-"); \ + assemble_name (FILE, (FNAME)); \ + putc ('\n', FILE); \ + } \ + } \ + while (0) + +/* Define this macro if jump tables (for `tablejump' insns) should be + output in the text section, along with the assembler instructions. + Otherwise, the readonly data section is used. */ +#define JUMP_TABLES_IN_TEXT_SECTION 1 + +#ifndef LINK_SPEC +#define LINK_SPEC "%{mbig-endian:-EB} -X" +#endif + +/* Run-time Target Specification. */ +#ifndef TARGET_VERSION +#define TARGET_VERSION fputs (" (ARM/elf)", stderr) +#endif + +#ifndef TARGET_DEFAULT +#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME) +#endif + +#ifndef MULTILIB_DEFAULTS +#define MULTILIB_DEFAULTS \ + { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" } +#endif + + +/* This outputs a lot of .req's to define alias for various registers. + Let's try to avoid this. */ +#ifndef ASM_FILE_START +#define ASM_FILE_START(STREAM) \ + do \ + { \ + fprintf (STREAM, "%s Generated by gcc %s for ARM/elf\n", \ + ASM_COMMENT_START, version_string); \ + output_file_directive (STREAM, main_input_filename); \ + fprintf (STREAM, ASM_APP_OFF); \ + } \ + while (0) +#endif + +/* Output an internal label definition. */ +#undef ASM_OUTPUT_INTERNAL_LABEL +#define ASM_OUTPUT_INTERNAL_LABEL(STREAM, PREFIX, NUM) \ + do \ + { \ + char * s = (char *) alloca (40 + strlen (PREFIX)); \ + extern int arm_target_label, arm_ccfsm_state; \ + extern rtx arm_target_insn; \ + \ + if (arm_ccfsm_state == 3 && arm_target_label == (NUM) \ + && !strcmp (PREFIX, "L")) \ + { \ + arm_ccfsm_state = 0; \ + arm_target_insn = NULL; \ + } \ + ASM_GENERATE_INTERNAL_LABEL (s, (PREFIX), (NUM)); \ + ASM_OUTPUT_LABEL (STREAM, s); \ + } \ + while (0) + +#undef TARGET_ASM_NAMED_SECTION +#define TARGET_ASM_NAMED_SECTION arm_elf_asm_named_section + +#undef ASM_OUTPUT_ALIGNED_COMMON +#define ASM_OUTPUT_ALIGNED_COMMON(STREAM, NAME, SIZE, ALIGN) \ + do \ + { \ + fprintf (STREAM, "\t.comm\t"); \ + assemble_name (STREAM, NAME); \ + fprintf (STREAM, ", %d, %d\n", SIZE, ALIGN); \ + } \ + while (0) + +/* For PIC code we need to explicitly specify (PLT) and (GOT) relocs. */ +#define NEED_PLT_RELOC flag_pic +#define NEED_GOT_RELOC flag_pic + +/* The ELF assembler handles GOT addressing differently to NetBSD. */ +#define GOT_PCREL 0 + +/* Biggest alignment supported by the object file format of this + machine. Use this macro to limit the alignment which can be + specified using the `__attribute__ ((aligned (N)))' construct. If + not defined, the default value is `BIGGEST_ALIGNMENT'. */ +#define MAX_OFILE_ALIGNMENT (32768 * 8) + +/* Align output to a power of two. Note ".align 0" is redundant, + and also GAS will treat it as ".align 2" which we do not want. */ +#define ASM_OUTPUT_ALIGN(STREAM, POWER) \ + do \ + { \ + if ((POWER) > 0) \ + fprintf (STREAM, "\t.align\t%d\n", POWER); \ + } \ + while (0) + +#define SUPPORTS_INIT_PRIORITY 1 |