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diff --git a/gnu/usr.bin/gdb/bfd/archures.c b/gnu/usr.bin/gdb/bfd/archures.c
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+/* BFD library support routines for architectures.
+ Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Hacked by John Gilmore and 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+
+SECTION
+ Architectures
+
+ BFD's idea of an architecture is implimented in
+ <<archures.c>>. BFD keeps one atom in a BFD describing the
+ architecture of the data attached to the BFD; a pointer to a
+ <<bfd_arch_info_type>>.
+
+ Pointers to structures can be requested independently of a bfd
+ so that an architecture's information can be interrogated
+ without access to an open bfd.
+
+ The arch information is provided by each architecture package.
+ The set of default architectures is selected by the #define
+ <<SELECT_ARCHITECTURES>>. This is normally set up in the
+ <<config/target.mt>> file of your choice. If the name is not
+ defined, then all the architectures supported are included.
+
+ When BFD starts up, all the architectures are called with an
+ initialize method. It is up to the architecture back end to
+ insert as many items into the list of architectures as it wants to;
+ generally this would be one for each machine and one for the
+ default case (an item with a machine field of 0).
+*/
+
+/*
+
+SUBSECTION
+ bfd_architecture
+
+DESCRIPTION
+ This enum gives the object file's CPU architecture, in a
+ global sense --- i.e., what processor family does it belong to?
+ There is another field, which indicates what processor within
+ the family is in use. The machine gives a number which
+ distingushes different versions of the architecture,
+ containing for example 2 and 3 for Intel i960 KA and i960 KB,
+ and 68020 and 68030 for Motorola 68020 and 68030.
+
+.enum bfd_architecture
+.{
+. bfd_arch_unknown, {* File arch not known *}
+. bfd_arch_obscure, {* Arch known, not one of these *}
+. bfd_arch_m68k, {* Motorola 68xxx *}
+. bfd_arch_vax, {* DEC Vax *}
+. bfd_arch_i960, {* Intel 960 *}
+. {* The order of the following is important.
+. lower number indicates a machine type that
+. only accepts a subset of the instructions
+. available to machines with higher numbers.
+. The exception is the "ca", which is
+. incompatible with all other machines except
+. "core". *}
+.
+.#define bfd_mach_i960_core 1
+.#define bfd_mach_i960_ka_sa 2
+.#define bfd_mach_i960_kb_sb 3
+.#define bfd_mach_i960_mc 4
+.#define bfd_mach_i960_xa 5
+.#define bfd_mach_i960_ca 6
+.
+. bfd_arch_a29k, {* AMD 29000 *}
+. bfd_arch_sparc, {* SPARC *}
+. bfd_arch_mips, {* MIPS Rxxxx *}
+. bfd_arch_i386, {* Intel 386 *}
+. bfd_arch_we32k, {* AT&T WE32xxx *}
+. bfd_arch_tahoe, {* CCI/Harris Tahoe *}
+. bfd_arch_i860, {* Intel 860 *}
+. bfd_arch_romp, {* IBM ROMP PC/RT *}
+. bfd_arch_alliant, {* Alliant *}
+. bfd_arch_convex, {* Convex *}
+. bfd_arch_m88k, {* Motorola 88xxx *}
+. bfd_arch_pyramid, {* Pyramid Technology *}
+. bfd_arch_h8300, {* Hitachi H8/300 *}
+.#define bfd_mach_h8300 1
+.#define bfd_mach_h8300h 2
+. bfd_arch_rs6000, {* IBM RS/6000 *}
+. bfd_arch_hppa, {* HP PA RISC *}
+. bfd_arch_z8k, {* Zilog Z8000 *}
+.#define bfd_mach_z8001 1
+.#define bfd_mach_z8002 2
+. bfd_arch_h8500, {* Hitachi H8/500 *}
+. bfd_arch_sh, {* Hitachi SH *}
+. bfd_arch_alpha, {* Dec Alpha *}
+. bfd_arch_last
+. };
+
+
+*/
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+/*
+
+SUBSECTION
+ bfd_arch_info
+
+DESCRIPTION
+ This structure contains information on architectures for use
+ within BFD.
+
+.
+.typedef struct bfd_arch_info
+.{
+. int bits_per_word;
+. int bits_per_address;
+. int bits_per_byte;
+. enum bfd_architecture arch;
+. long mach;
+. char *arch_name;
+. CONST char *printable_name;
+. unsigned int section_align_power;
+. {* true if this is the default machine for the architecture *}
+. boolean the_default;
+. CONST struct bfd_arch_info * (*compatible)
+. PARAMS ((CONST struct bfd_arch_info *a,
+. CONST struct bfd_arch_info *b));
+.
+. boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
+. {* How to disassemble an instruction, producing a printable
+. representation on a specified stdio stream. This isn't
+. defined for most processors at present, because of the size
+. of the additional tables it would drag in, and because gdb
+. wants to use a different interface. *}
+. unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
+. PTR stream));
+.
+. struct bfd_arch_info *next;
+.} bfd_arch_info_type;
+*/
+
+bfd_arch_info_type *bfd_arch_info_list;
+
+
+/*
+FUNCTION
+ bfd_printable_name
+
+SYNOPSIS
+ CONST char *bfd_printable_name(bfd *abfd);
+
+DESCRIPTION
+ Return a printable string representing the architecture and machine
+ from the pointer to the arch info structure
+
+*/
+
+CONST char *
+DEFUN(bfd_printable_name, (abfd),
+ bfd *abfd)
+{
+ return abfd->arch_info->printable_name;
+}
+
+
+
+/*
+FUNCTION
+ bfd_scan_arch
+
+SYNOPSIS
+ bfd_arch_info_type *bfd_scan_arch(CONST char *);
+
+DESCRIPTION
+ This routine is provided with a string and tries to work out
+ if bfd supports any cpu which could be described with the name
+ provided. The routine returns a pointer to an arch_info
+ structure if a machine is found, otherwise NULL.
+
+*/
+
+bfd_arch_info_type *
+DEFUN(bfd_scan_arch,(string),
+ CONST char *string)
+{
+ struct bfd_arch_info *ap;
+
+ /* Look through all the installed architectures */
+ for (ap = bfd_arch_info_list;
+ ap != (bfd_arch_info_type *)NULL;
+ ap = ap->next) {
+
+ if (ap->scan(ap, string))
+ return ap;
+ }
+ return (bfd_arch_info_type *)NULL;
+}
+
+
+
+/*
+FUNCTION
+ bfd_arch_get_compatible
+
+SYNOPSIS
+ CONST bfd_arch_info_type *bfd_arch_get_compatible(
+ CONST bfd *abfd,
+ CONST bfd *bbfd);
+
+DESCRIPTION
+ This routine is used to determine whether two BFDs'
+ architectures and achine types are compatible. It calculates
+ the lowest common denominator between the two architectures
+ and machine types implied by the BFDs and returns a pointer to
+ an arch_info structure describing the compatible machine.
+*/
+
+CONST bfd_arch_info_type *
+DEFUN(bfd_arch_get_compatible,(abfd, bbfd),
+CONST bfd *abfd AND
+CONST bfd *bbfd)
+
+{
+ return abfd->arch_info->compatible(abfd->arch_info,bbfd->arch_info);
+}
+
+
+/*
+INTERNAL_DEFINITION
+ bfd_default_arch_struct
+
+DESCRIPTION
+ The <<bfd_default_arch_struct>> is an item of
+ <<bfd_arch_info_type>> which has been initialized to a fairly
+ generic state. A BFD starts life by pointing to this
+ structure, until the correct back end has determined the real
+ architecture of the file.
+
+.extern bfd_arch_info_type bfd_default_arch_struct;
+
+*/
+
+bfd_arch_info_type bfd_default_arch_struct =
+{
+ 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
+ bfd_default_compatible,
+ bfd_default_scan,
+ 0,
+};
+
+/*
+FUNCTION
+ bfd_set_arch_info
+
+SYNOPSIS
+ void bfd_set_arch_info(bfd *, bfd_arch_info_type *);
+
+*/
+
+void DEFUN(bfd_set_arch_info,(abfd, arg),
+bfd *abfd AND
+bfd_arch_info_type *arg)
+{
+ abfd->arch_info = arg;
+}
+
+/*
+INTERNAL_FUNCTION
+ bfd_default_set_arch_mach
+
+SYNOPSIS
+ boolean bfd_default_set_arch_mach(bfd *abfd,
+ enum bfd_architecture arch,
+ unsigned long mach);
+
+DESCRIPTION
+ Set the architecture and machine type in a bfd. This finds the
+ correct pointer to structure and inserts it into the arch_info
+ pointer.
+*/
+
+boolean DEFUN(bfd_default_set_arch_mach,(abfd, arch, mach),
+ bfd *abfd AND
+ enum bfd_architecture arch AND
+ unsigned long mach)
+{
+ static struct bfd_arch_info *old_ptr = &bfd_default_arch_struct;
+ boolean found = false;
+ /* run through the table to find the one we want, we keep a little
+ cache to speed things up */
+ if (old_ptr == 0 || arch != old_ptr->arch || mach != old_ptr->mach) {
+ bfd_arch_info_type *ptr;
+ old_ptr = (bfd_arch_info_type *)NULL;
+ for (ptr = bfd_arch_info_list;
+ ptr != (bfd_arch_info_type *)NULL;
+ ptr= ptr->next) {
+ if (ptr->arch == arch &&
+ ((ptr->mach == mach) || (ptr->the_default && mach == 0))) {
+ old_ptr = ptr;
+ found = true;
+ break;
+ }
+ }
+ if (found==false) {
+ /*looked for it and it wasn't there, so put in the default */
+ old_ptr = &bfd_default_arch_struct;
+ bfd_error = bad_value;
+ }
+ }
+ else {
+ /* it was in the cache */
+ found = true;
+ }
+
+ abfd->arch_info = old_ptr;
+
+ return found;
+}
+
+
+
+
+
+/*
+FUNCTION
+ bfd_get_arch
+
+SYNOPSIS
+ enum bfd_architecture bfd_get_arch(bfd *abfd);
+
+DESCRIPTION
+ Returns the enumerated type which describes the supplied bfd's
+ architecture
+
+*/
+
+enum bfd_architecture DEFUN(bfd_get_arch, (abfd), bfd *abfd)
+{
+ return abfd->arch_info->arch;
+}
+
+/*
+FUNCTION
+ bfd_get_mach
+
+SYNOPSIS
+ unsigned long bfd_get_mach(bfd *abfd);
+
+DESCRIPTION
+ Returns the long type which describes the supplied bfd's
+ machine
+*/
+
+unsigned long
+DEFUN(bfd_get_mach, (abfd), bfd *abfd)
+{
+ return abfd->arch_info->mach;
+}
+
+/*
+FUNCTION
+ bfd_arch_bits_per_byte
+
+SYNOPSIS
+ unsigned int bfd_arch_bits_per_byte(bfd *abfd);
+
+DESCRIPTION
+ Returns the number of bits in one of the architectures bytes
+
+*/
+
+unsigned int DEFUN(bfd_arch_bits_per_byte, (abfd), bfd *abfd)
+ {
+ return abfd->arch_info->bits_per_byte;
+ }
+
+/*
+FUNCTION
+ bfd_arch_bits_per_address
+
+SYNOPSIS
+ unsigned int bfd_arch_bits_per_address(bfd *abfd);
+
+DESCRIPTION
+ Returns the number of bits in one of the architectures addresses
+*/
+
+unsigned int DEFUN(bfd_arch_bits_per_address, (abfd), bfd *abfd)
+ {
+ return abfd->arch_info->bits_per_address;
+ }
+
+
+extern void bfd_a29k_arch PARAMS ((void));
+extern void bfd_alpha_arch PARAMS ((void));
+extern void bfd_h8300_arch PARAMS ((void));
+extern void bfd_h8500_arch PARAMS ((void));
+extern void bfd_hppa_arch PARAMS ((void));
+extern void bfd_i386_arch PARAMS ((void));
+extern void bfd_i960_arch PARAMS ((void));
+extern void bfd_m68k_arch PARAMS ((void));
+extern void bfd_m88k_arch PARAMS ((void));
+extern void bfd_mips_arch PARAMS ((void));
+extern void bfd_rs6000_arch PARAMS ((void));
+extern void bfd_sh_arch PARAMS ((void));
+extern void bfd_sparc_arch PARAMS ((void));
+extern void bfd_vax_arch PARAMS ((void));
+extern void bfd_we32k_arch PARAMS ((void));
+extern void bfd_z8k_arch PARAMS ((void));
+
+static void (*archures_init_table[]) PARAMS ((void)) =
+{
+#ifdef SELECT_ARCHITECTURES
+ SELECT_ARCHITECTURES,
+#else
+ bfd_a29k_arch,
+ bfd_alpha_arch,
+ bfd_h8300_arch,
+ bfd_h8500_arch,
+ bfd_hppa_arch,
+ bfd_i386_arch,
+ bfd_i960_arch,
+ bfd_m68k_arch,
+ bfd_m88k_arch,
+ bfd_mips_arch,
+ bfd_rs6000_arch,
+ bfd_sh_arch,
+ bfd_sparc_arch,
+ bfd_vax_arch,
+ bfd_we32k_arch,
+ bfd_z8k_arch,
+#endif
+ 0
+ };
+
+
+
+/*
+INTERNAL_FUNCTION
+ bfd_arch_init
+
+SYNOPSIS
+ void bfd_arch_init(void);
+
+DESCRIPTION
+ This routine initializes the architecture dispatch table by
+ calling all installed architecture packages and getting them
+ to poke around.
+*/
+
+void
+DEFUN_VOID(bfd_arch_init)
+{
+ void (**ptable) PARAMS ((void));
+ for (ptable = archures_init_table;
+ *ptable ;
+ ptable++)
+ {
+ (*ptable)();
+ }
+}
+
+
+/*
+INTERNAL_FUNCTION
+ bfd_arch_linkin
+
+SYNOPSIS
+ void bfd_arch_linkin(bfd_arch_info_type *);
+
+DESCRIPTION
+ Link the provided arch info structure into the list
+*/
+
+void DEFUN(bfd_arch_linkin,(ptr),
+ bfd_arch_info_type *ptr)
+{
+ ptr->next = bfd_arch_info_list;
+ bfd_arch_info_list = ptr;
+}
+
+
+/*
+INTERNAL_FUNCTION
+ bfd_default_compatible
+
+SYNOPSIS
+ CONST bfd_arch_info_type *bfd_default_compatible
+ (CONST bfd_arch_info_type *a,
+ CONST bfd_arch_info_type *b);
+
+DESCRIPTION
+ The default function for testing for compatibility.
+*/
+
+CONST bfd_arch_info_type *
+DEFUN(bfd_default_compatible,(a,b),
+ CONST bfd_arch_info_type *a AND
+ CONST bfd_arch_info_type *b)
+{
+ if(a->arch != b->arch) return NULL;
+
+ if (a->mach > b->mach) {
+ return a;
+ }
+ if (b->mach > a->mach) {
+ return b;
+ }
+ return a;
+}
+
+
+/*
+INTERNAL_FUNCTION
+ bfd_default_scan
+
+SYNOPSIS
+ boolean bfd_default_scan(CONST struct bfd_arch_info *, CONST char *);
+
+DESCRIPTION
+ The default function for working out whether this is an
+ architecture hit and a machine hit.
+*/
+
+boolean
+DEFUN(bfd_default_scan,(info, string),
+CONST struct bfd_arch_info *info AND
+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 (strcmp(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 68k 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(*ptr_src)) {
+ number = number * 10 + *ptr_src - '0';
+ ptr_src++;
+ }
+
+ switch (number)
+ {
+ case 300:
+ arch = bfd_arch_h8300;
+ break;
+
+ case 500:
+ arch = bfd_arch_h8500;
+ break;
+
+ case 68010:
+ case 68020:
+ case 68030:
+ case 68040:
+ case 68332:
+ case 68050:
+ case 68000:
+ arch = bfd_arch_m68k;
+ break;
+ case 386:
+ case 80386:
+ case 486:
+ case 80486:
+ arch = bfd_arch_i386;
+ break;
+ case 29000:
+ arch = bfd_arch_a29k;
+ break;
+
+ case 8000:
+ arch = bfd_arch_z8k;
+ break;
+
+ case 32000:
+ arch = bfd_arch_we32k;
+ break;
+
+ case 860:
+ case 80860:
+ arch = bfd_arch_i860;
+ break;
+ case 960:
+ case 80960:
+ arch = bfd_arch_i960;
+ break;
+
+ case 2000:
+ case 3000:
+ case 4000:
+ case 4400:
+ arch = bfd_arch_mips;
+ break;
+
+ case 6000:
+ arch = bfd_arch_rs6000;
+ break;
+
+ default:
+ return false;
+ }
+ if (arch != info->arch)
+ return false;
+
+ if (number != info->mach)
+ return false;
+
+ return true;
+}
+
+
+
+
+/*
+FUNCTION
+ bfd_get_arch_info
+
+
+SYNOPSIS
+ bfd_arch_info_type * bfd_get_arch_info(bfd *);
+
+*/
+
+bfd_arch_info_type *
+DEFUN(bfd_get_arch_info,(abfd),
+bfd *abfd)
+{
+ return abfd->arch_info;
+}
+
+
+/*
+FUNCTION
+ bfd_lookup_arch
+
+SYNOPSIS
+ bfd_arch_info_type *bfd_lookup_arch
+ (enum bfd_architecture
+ arch,
+ long machine);
+
+DESCRIPTION
+ Look for the architecure info struct which matches the
+ arguments given. A machine of 0 will match the
+ machine/architecture structure which marks itself as the
+ default.
+*/
+
+bfd_arch_info_type *
+DEFUN(bfd_lookup_arch,(arch, machine),
+enum bfd_architecture arch AND
+long machine)
+{
+ bfd_arch_info_type *ap;
+ bfd_check_init();
+ for (ap = bfd_arch_info_list;
+ ap != (bfd_arch_info_type *)NULL;
+ ap = ap->next) {
+ if (ap->arch == arch &&
+ ((ap->mach == machine)
+ || (ap->the_default && machine == 0))) {
+ return ap;
+ }
+ }
+ return (bfd_arch_info_type *)NULL;
+}
+
+
+
+/*
+FUNCTION
+ bfd_printable_arch_mach
+
+SYNOPSIS
+ CONST char * bfd_printable_arch_mach
+ (enum bfd_architecture arch, unsigned long machine);
+
+DESCRIPTION
+ Return a printable string representing the architecture and
+ machine type.
+
+ NB. The use of this routine is depreciated.
+*/
+
+CONST char *
+DEFUN(bfd_printable_arch_mach,(arch, machine),
+ enum bfd_architecture arch AND
+ unsigned long machine)
+{
+ bfd_arch_info_type *ap = bfd_lookup_arch(arch, machine);
+ if(ap) return ap->printable_name;
+ return "UNKNOWN!";
+}
generated by cgit v1.3 (git 2.53.0) at 2026-04-18 17:20:14 +0000