1 /* BFD library support routines for architectures.
2 Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
3 Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
31 BFD keeps one atom in a BFD describing the
32 architecture of the data attached to the BFD: a pointer to a
33 <<bfd_arch_info_type>>.
35 Pointers to structures can be requested independently of a BFD
36 so that an architecture's information can be interrogated
37 without access to an open BFD.
39 The architecture information is provided by each architecture package.
40 The set of default architectures is selected by the macro
41 <<SELECT_ARCHITECTURES>>. This is normally set up in the
42 @file{config/@var{target}.mt} file of your choice. If the name is not
43 defined, then all the architectures supported are included.
45 When BFD starts up, all the architectures are called with an
46 initialize method. It is up to the architecture back end to
47 insert as many items into the list of architectures as it wants to;
48 generally this would be one for each machine and one for the
49 default case (an item with a machine field of 0).
51 BFD's idea of an architecture is implemented in @file{archures.c}.
60 This enum gives the object file's CPU architecture, in a
61 global sense---i.e., what processor family does it belong to?
62 Another field indicates which processor within
63 the family is in use. The machine gives a number which
64 distinguishes different versions of the architecture,
65 containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
66 and 68020 and 68030 for Motorola 68020 and 68030.
68 .enum bfd_architecture
70 . bfd_arch_unknown, {* File arch not known *}
71 . bfd_arch_obscure, {* Arch known, not one of these *}
72 . bfd_arch_m68k, {* Motorola 68xxx *}
73 . bfd_arch_vax, {* DEC Vax *}
74 . bfd_arch_i960, {* Intel 960 *}
75 . {* The order of the following is important.
76 . lower number indicates a machine type that
77 . only accepts a subset of the instructions
78 . available to machines with higher numbers.
79 . The exception is the "ca", which is
80 . incompatible with all other machines except
83 .#define bfd_mach_i960_core 1
84 .#define bfd_mach_i960_ka_sa 2
85 .#define bfd_mach_i960_kb_sb 3
86 .#define bfd_mach_i960_mc 4
87 .#define bfd_mach_i960_xa 5
88 .#define bfd_mach_i960_ca 6
89 .#define bfd_mach_i960_jx 7
90 .#define bfd_mach_i960_hx 8
92 . bfd_arch_a29k, {* AMD 29000 *}
93 . bfd_arch_sparc, {* SPARC *}
94 .#define bfd_mach_sparc 1
95 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
96 .#define bfd_mach_sparc_sparclet 2
97 .#define bfd_mach_sparc_sparclite 3
98 .#define bfd_mach_sparc_v8plus 4
99 .#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns *}
100 .#define bfd_mach_sparc_v9 6
101 .#define bfd_mach_sparc_v9a 7 {* with ultrasparc add'ns *}
102 .{* Nonzero if MACH has the v9 instruction set. *}
103 .#define bfd_mach_sparc_v9_p(mach) \
104 . ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
105 . bfd_arch_mips, {* MIPS Rxxxx *}
106 . bfd_arch_i386, {* Intel 386 *}
107 .#define bfd_mach_i386_i386 0
108 .#define bfd_mach_i386_i8086 1
109 . bfd_arch_we32k, {* AT&T WE32xxx *}
110 . bfd_arch_tahoe, {* CCI/Harris Tahoe *}
111 . bfd_arch_i860, {* Intel 860 *}
112 . bfd_arch_romp, {* IBM ROMP PC/RT *}
113 . bfd_arch_alliant, {* Alliant *}
114 . bfd_arch_convex, {* Convex *}
115 . bfd_arch_m88k, {* Motorola 88xxx *}
116 . bfd_arch_pyramid, {* Pyramid Technology *}
117 . bfd_arch_h8300, {* Hitachi H8/300 *}
118 .#define bfd_mach_h8300 1
119 .#define bfd_mach_h8300h 2
120 .#define bfd_mach_h8300s 3
121 . bfd_arch_powerpc, {* PowerPC *}
122 . bfd_arch_rs6000, {* IBM RS/6000 *}
123 . bfd_arch_hppa, {* HP PA RISC *}
124 . {* start-sanitize-d10v *}
125 . bfd_arch_d10v, {* Mitsubishi D10V *}
126 . {* end-sanitize-d10v *}
127 . bfd_arch_z8k, {* Zilog Z8000 *}
128 .#define bfd_mach_z8001 1
129 .#define bfd_mach_z8002 2
130 . bfd_arch_h8500, {* Hitachi H8/500 *}
131 . bfd_arch_sh, {* Hitachi SH *}
132 . bfd_arch_alpha, {* Dec Alpha *}
133 . bfd_arch_arm, {* Advanced Risc Machines ARM *}
134 . bfd_arch_ns32k, {* National Semiconductors ns32000 *}
135 . bfd_arch_w65, {* WDC 65816 *}
136 . {* start-sanitize-v850 *}
137 . bfd_arch_v850, {* NEC V850 *}
138 . {* end-sanitize-v850 *}
139 . {* start-sanitize-arc *}
140 . bfd_arch_arc, {* Argonaut RISC Core *}
141 .#define bfd_mach_arc_base 0
142 .#define bfd_mach_arc_host 1
143 .#define bfd_mach_arc_graphics 2
144 .#define bfd_mach_arc_audio 3
145 . {* end-sanitize-arc *}
146 . {* start-sanitize-m32r *}
147 . bfd_arch_m32r, {* Mitsubishi M32R *}
148 . {* end-sanitize-m32r *}
149 . bfd_arch_mn10x00, {* Matsushita MN10x00 *}
162 This structure contains information on architectures for use
166 .typedef struct bfd_arch_info
169 . int bits_per_address;
171 . enum bfd_architecture arch;
172 . unsigned long mach;
173 . const char *arch_name;
174 . const char *printable_name;
175 . unsigned int section_align_power;
176 . {* true if this is the default machine for the architecture *}
177 . boolean the_default;
178 . const struct bfd_arch_info * (*compatible)
179 . PARAMS ((const struct bfd_arch_info *a,
180 . const struct bfd_arch_info *b));
182 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
184 . const struct bfd_arch_info *next;
185 .} bfd_arch_info_type;
188 extern const bfd_arch_info_type bfd_a29k_arch;
189 extern const bfd_arch_info_type bfd_alpha_arch;
190 /* start-sanitize-arc */
191 extern const bfd_arch_info_type bfd_arc_arch;
192 /* end-sanitize-arc */
193 extern const bfd_arch_info_type bfd_arm_arch;
194 /* start-sanitize-d10v */
195 extern const bfd_arch_info_type bfd_d10v_arch;
196 /* end-sanitize-d10v */
197 extern const bfd_arch_info_type bfd_h8300_arch;
198 extern const bfd_arch_info_type bfd_h8500_arch;
199 extern const bfd_arch_info_type bfd_hppa_arch;
200 extern const bfd_arch_info_type bfd_i386_arch;
201 extern const bfd_arch_info_type bfd_i860_arch;
202 extern const bfd_arch_info_type bfd_i960_arch;
203 /* start-sanitize-m32r */
204 extern const bfd_arch_info_type bfd_m32r_arch;
205 /* end-sanitize-m32r */
206 extern const bfd_arch_info_type bfd_m68k_arch;
207 extern const bfd_arch_info_type bfd_m88k_arch;
208 extern const bfd_arch_info_type bfd_mips_arch;
209 extern const bfd_arch_info_type bfd_mn10x00_arch;
210 extern const bfd_arch_info_type bfd_powerpc_arch;
211 extern const bfd_arch_info_type bfd_rs6000_arch;
212 extern const bfd_arch_info_type bfd_sh_arch;
213 extern const bfd_arch_info_type bfd_sparc_arch;
214 extern const bfd_arch_info_type bfd_vax_arch;
215 extern const bfd_arch_info_type bfd_we32k_arch;
216 extern const bfd_arch_info_type bfd_z8k_arch;
217 extern const bfd_arch_info_type bfd_ns32k_arch;
218 extern const bfd_arch_info_type bfd_w65_arch;
219 /* start-sanitize-v850 */
220 extern const bfd_arch_info_type bfd_v850_arch;
221 /* end-sanitize-v850 */
223 static const bfd_arch_info_type * const bfd_archures_list[] =
225 #ifdef SELECT_ARCHITECTURES
226 SELECT_ARCHITECTURES,
230 /* start-sanitize-arc */
232 /* end-sanitize-arc */
234 /* start-sanitize-d10v */
236 /* end-sanitize-d10v */
243 /* start-sanitize-m32r */
245 /* end-sanitize-m32r */
259 /* start-sanitize-v850*/
261 /* end-sanitize-v850 */
271 const char *bfd_printable_name(bfd *abfd);
274 Return a printable string representing the architecture and machine
275 from the pointer to the architecture info structure.
280 bfd_printable_name (abfd)
283 return abfd->arch_info->printable_name;
293 const bfd_arch_info_type *bfd_scan_arch(const char *string);
296 Figure out if BFD supports any cpu which could be described with
297 the name @var{string}. Return a pointer to an <<arch_info>>
298 structure if a machine is found, otherwise NULL.
302 const bfd_arch_info_type *
303 bfd_scan_arch (string)
306 const bfd_arch_info_type * const *app, *ap;
308 /* Look through all the installed architectures */
309 for (app = bfd_archures_list; *app != NULL; app++)
311 for (ap = *app; ap != NULL; ap = ap->next)
313 if (ap->scan (ap, string))
325 bfd_arch_get_compatible
328 const bfd_arch_info_type *bfd_arch_get_compatible(
333 Determine whether two BFDs'
334 architectures and machine types are compatible. Calculates
335 the lowest common denominator between the two architectures
336 and machine types implied by the BFDs and returns a pointer to
337 an <<arch_info>> structure describing the compatible machine.
340 const bfd_arch_info_type *
341 bfd_arch_get_compatible (abfd, bbfd)
345 /* If either architecture is unknown, then all we can do is assume
346 the user knows what he's doing. */
347 if (abfd->arch_info->arch == bfd_arch_unknown)
348 return bbfd->arch_info;
349 if (bbfd->arch_info->arch == bfd_arch_unknown)
350 return abfd->arch_info;
352 /* Otherwise architecture-specific code has to decide. */
353 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
359 bfd_default_arch_struct
362 The <<bfd_default_arch_struct>> is an item of
363 <<bfd_arch_info_type>> which has been initialized to a fairly
364 generic state. A BFD starts life by pointing to this
365 structure, until the correct back end has determined the real
366 architecture of the file.
368 .extern const bfd_arch_info_type bfd_default_arch_struct;
372 const bfd_arch_info_type bfd_default_arch_struct =
374 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
375 bfd_default_compatible,
385 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
388 Set the architecture info of @var{abfd} to @var{arg}.
392 bfd_set_arch_info (abfd, arg)
394 const bfd_arch_info_type *arg;
396 abfd->arch_info = arg;
401 bfd_default_set_arch_mach
404 boolean bfd_default_set_arch_mach(bfd *abfd,
405 enum bfd_architecture arch,
409 Set the architecture and machine type in BFD @var{abfd}
410 to @var{arch} and @var{mach}. Find the correct
411 pointer to a structure and insert it into the <<arch_info>>
416 bfd_default_set_arch_mach (abfd, arch, mach)
418 enum bfd_architecture arch;
421 const bfd_arch_info_type * const *app, *ap;
423 for (app = bfd_archures_list; *app != NULL; app++)
425 for (ap = *app; ap != NULL; ap = ap->next)
429 || (mach == 0 && ap->the_default)))
431 abfd->arch_info = ap;
437 abfd->arch_info = &bfd_default_arch_struct;
438 bfd_set_error (bfd_error_bad_value);
448 enum bfd_architecture bfd_get_arch(bfd *abfd);
451 Return the enumerated type which describes the BFD @var{abfd}'s
456 enum bfd_architecture
460 return abfd->arch_info->arch;
468 unsigned long bfd_get_mach(bfd *abfd);
471 Return the long type which describes the BFD @var{abfd}'s
479 return abfd->arch_info->mach;
484 bfd_arch_bits_per_byte
487 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
490 Return the number of bits in one of the BFD @var{abfd}'s
491 architecture's bytes.
496 bfd_arch_bits_per_byte (abfd)
499 return abfd->arch_info->bits_per_byte;
504 bfd_arch_bits_per_address
507 unsigned int bfd_arch_bits_per_address(bfd *abfd);
510 Return the number of bits in one of the BFD @var{abfd}'s
511 architecture's addresses.
515 bfd_arch_bits_per_address (abfd)
518 return abfd->arch_info->bits_per_address;
524 bfd_default_compatible
527 const bfd_arch_info_type *bfd_default_compatible
528 (const bfd_arch_info_type *a,
529 const bfd_arch_info_type *b);
532 The default function for testing for compatibility.
535 const bfd_arch_info_type *
536 bfd_default_compatible (a,b)
537 const bfd_arch_info_type *a;
538 const bfd_arch_info_type *b;
540 if (a->arch != b->arch)
543 if (a->mach > b->mach)
546 if (b->mach > a->mach)
558 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
561 The default function for working out whether this is an
562 architecture hit and a machine hit.
566 bfd_default_scan (info, string)
567 const struct bfd_arch_info *info;
572 unsigned long number;
573 enum bfd_architecture arch;
575 /* First test for an exact match */
576 if (strcmp (string, info->printable_name) == 0)
579 /* See how much of the supplied string matches with the
580 architecture, eg the string m68k:68020 would match the 68k entry
581 up to the :, then we get left with the machine number */
583 for (ptr_src = string, ptr_tst = info->arch_name;
584 *ptr_src && *ptr_tst;
585 ptr_src++, ptr_tst++)
587 if (*ptr_src != *ptr_tst) break;
590 /* Chewed up as much of the architecture as will match, skip any
597 /* nothing more, then only keep this one if it is the default
598 machine for this architecture */
599 return info->the_default;
603 while (isdigit(*ptr_src))
605 number = number * 10 + *ptr_src - '0';
616 arch = bfd_arch_h8300;
620 arch = bfd_arch_h8500;
630 arch = bfd_arch_m68k;
637 arch = bfd_arch_i386;
641 arch = bfd_arch_a29k;
649 arch = bfd_arch_we32k;
654 arch = bfd_arch_i860;
658 arch = bfd_arch_i960;
665 arch = bfd_arch_mips;
669 arch = bfd_arch_rs6000;
676 if (arch != info->arch)
679 if (number != info->mach)
691 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
694 Return the architecture info struct in @var{abfd}.
697 const bfd_arch_info_type *
698 bfd_get_arch_info (abfd)
701 return abfd->arch_info;
710 const bfd_arch_info_type *bfd_lookup_arch
711 (enum bfd_architecture
713 unsigned long machine);
716 Look for the architecure info structure which matches the
717 arguments @var{arch} and @var{machine}. A machine of 0 matches the
718 machine/architecture structure which marks itself as the
722 const bfd_arch_info_type *
723 bfd_lookup_arch (arch, machine)
724 enum bfd_architecture arch;
725 unsigned long machine;
727 const bfd_arch_info_type * const *app, *ap;
729 for (app = bfd_archures_list; *app != NULL; app++)
731 for (ap = *app; ap != NULL; ap = ap->next)
734 && (ap->mach == machine
735 || (machine == 0 && ap->the_default)))
746 bfd_printable_arch_mach
749 const char *bfd_printable_arch_mach
750 (enum bfd_architecture arch, unsigned long machine);
753 Return a printable string representing the architecture and
756 This routine is depreciated.
760 bfd_printable_arch_mach (arch, machine)
761 enum bfd_architecture arch;
762 unsigned long machine;
764 const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
767 return ap->printable_name;