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_mn10200, {* Matsushita MN10200 *}
150 . bfd_arch_mn10300, {* Matsushita MN10300 *}
163 This structure contains information on architectures for use
167 .typedef struct bfd_arch_info
170 . int bits_per_address;
172 . enum bfd_architecture arch;
173 . unsigned long mach;
174 . const char *arch_name;
175 . const char *printable_name;
176 . unsigned int section_align_power;
177 . {* true if this is the default machine for the architecture *}
178 . boolean the_default;
179 . const struct bfd_arch_info * (*compatible)
180 . PARAMS ((const struct bfd_arch_info *a,
181 . const struct bfd_arch_info *b));
183 . boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
185 . const struct bfd_arch_info *next;
186 .} bfd_arch_info_type;
189 extern const bfd_arch_info_type bfd_a29k_arch;
190 extern const bfd_arch_info_type bfd_alpha_arch;
191 /* start-sanitize-arc */
192 extern const bfd_arch_info_type bfd_arc_arch;
193 /* end-sanitize-arc */
194 extern const bfd_arch_info_type bfd_arm_arch;
195 /* start-sanitize-d10v */
196 extern const bfd_arch_info_type bfd_d10v_arch;
197 /* end-sanitize-d10v */
198 extern const bfd_arch_info_type bfd_h8300_arch;
199 extern const bfd_arch_info_type bfd_h8500_arch;
200 extern const bfd_arch_info_type bfd_hppa_arch;
201 extern const bfd_arch_info_type bfd_i386_arch;
202 extern const bfd_arch_info_type bfd_i860_arch;
203 extern const bfd_arch_info_type bfd_i960_arch;
204 /* start-sanitize-m32r */
205 extern const bfd_arch_info_type bfd_m32r_arch;
206 /* end-sanitize-m32r */
207 extern const bfd_arch_info_type bfd_m68k_arch;
208 extern const bfd_arch_info_type bfd_m88k_arch;
209 extern const bfd_arch_info_type bfd_mips_arch;
210 extern const bfd_arch_info_type bfd_mn10200_arch;
211 extern const bfd_arch_info_type bfd_mn10300_arch;
212 extern const bfd_arch_info_type bfd_powerpc_arch;
213 extern const bfd_arch_info_type bfd_rs6000_arch;
214 extern const bfd_arch_info_type bfd_sh_arch;
215 extern const bfd_arch_info_type bfd_sparc_arch;
216 /* start-sanitize-tic80 */
217 extern const bfd_arch_info_type bfd_tic80_arch;
218 /* end-sanitize-tic80 */
219 extern const bfd_arch_info_type bfd_vax_arch;
220 extern const bfd_arch_info_type bfd_we32k_arch;
221 extern const bfd_arch_info_type bfd_z8k_arch;
222 extern const bfd_arch_info_type bfd_ns32k_arch;
223 extern const bfd_arch_info_type bfd_w65_arch;
224 /* start-sanitize-v850 */
225 extern const bfd_arch_info_type bfd_v850_arch;
226 /* end-sanitize-v850 */
228 static const bfd_arch_info_type * const bfd_archures_list[] =
230 #ifdef SELECT_ARCHITECTURES
231 SELECT_ARCHITECTURES,
235 /* start-sanitize-arc */
237 /* end-sanitize-arc */
239 /* start-sanitize-d10v */
241 /* end-sanitize-d10v */
248 /* start-sanitize-m32r */
250 /* end-sanitize-m32r */
265 /* start-sanitize-v850*/
267 /* end-sanitize-v850 */
277 const char *bfd_printable_name(bfd *abfd);
280 Return a printable string representing the architecture and machine
281 from the pointer to the architecture info structure.
286 bfd_printable_name (abfd)
289 return abfd->arch_info->printable_name;
299 const bfd_arch_info_type *bfd_scan_arch(const char *string);
302 Figure out if BFD supports any cpu which could be described with
303 the name @var{string}. Return a pointer to an <<arch_info>>
304 structure if a machine is found, otherwise NULL.
308 const bfd_arch_info_type *
309 bfd_scan_arch (string)
312 const bfd_arch_info_type * const *app, *ap;
314 /* Look through all the installed architectures */
315 for (app = bfd_archures_list; *app != NULL; app++)
317 for (ap = *app; ap != NULL; ap = ap->next)
319 if (ap->scan (ap, string))
331 bfd_arch_get_compatible
334 const bfd_arch_info_type *bfd_arch_get_compatible(
339 Determine whether two BFDs'
340 architectures and machine types are compatible. Calculates
341 the lowest common denominator between the two architectures
342 and machine types implied by the BFDs and returns a pointer to
343 an <<arch_info>> structure describing the compatible machine.
346 const bfd_arch_info_type *
347 bfd_arch_get_compatible (abfd, bbfd)
351 /* If either architecture is unknown, then all we can do is assume
352 the user knows what he's doing. */
353 if (abfd->arch_info->arch == bfd_arch_unknown)
354 return bbfd->arch_info;
355 if (bbfd->arch_info->arch == bfd_arch_unknown)
356 return abfd->arch_info;
358 /* Otherwise architecture-specific code has to decide. */
359 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
365 bfd_default_arch_struct
368 The <<bfd_default_arch_struct>> is an item of
369 <<bfd_arch_info_type>> which has been initialized to a fairly
370 generic state. A BFD starts life by pointing to this
371 structure, until the correct back end has determined the real
372 architecture of the file.
374 .extern const bfd_arch_info_type bfd_default_arch_struct;
378 const bfd_arch_info_type bfd_default_arch_struct =
380 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
381 bfd_default_compatible,
391 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
394 Set the architecture info of @var{abfd} to @var{arg}.
398 bfd_set_arch_info (abfd, arg)
400 const bfd_arch_info_type *arg;
402 abfd->arch_info = arg;
407 bfd_default_set_arch_mach
410 boolean bfd_default_set_arch_mach(bfd *abfd,
411 enum bfd_architecture arch,
415 Set the architecture and machine type in BFD @var{abfd}
416 to @var{arch} and @var{mach}. Find the correct
417 pointer to a structure and insert it into the <<arch_info>>
422 bfd_default_set_arch_mach (abfd, arch, mach)
424 enum bfd_architecture arch;
427 const bfd_arch_info_type * const *app, *ap;
429 for (app = bfd_archures_list; *app != NULL; app++)
431 for (ap = *app; ap != NULL; ap = ap->next)
435 || (mach == 0 && ap->the_default)))
437 abfd->arch_info = ap;
443 abfd->arch_info = &bfd_default_arch_struct;
444 bfd_set_error (bfd_error_bad_value);
454 enum bfd_architecture bfd_get_arch(bfd *abfd);
457 Return the enumerated type which describes the BFD @var{abfd}'s
462 enum bfd_architecture
466 return abfd->arch_info->arch;
474 unsigned long bfd_get_mach(bfd *abfd);
477 Return the long type which describes the BFD @var{abfd}'s
485 return abfd->arch_info->mach;
490 bfd_arch_bits_per_byte
493 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
496 Return the number of bits in one of the BFD @var{abfd}'s
497 architecture's bytes.
502 bfd_arch_bits_per_byte (abfd)
505 return abfd->arch_info->bits_per_byte;
510 bfd_arch_bits_per_address
513 unsigned int bfd_arch_bits_per_address(bfd *abfd);
516 Return the number of bits in one of the BFD @var{abfd}'s
517 architecture's addresses.
521 bfd_arch_bits_per_address (abfd)
524 return abfd->arch_info->bits_per_address;
530 bfd_default_compatible
533 const bfd_arch_info_type *bfd_default_compatible
534 (const bfd_arch_info_type *a,
535 const bfd_arch_info_type *b);
538 The default function for testing for compatibility.
541 const bfd_arch_info_type *
542 bfd_default_compatible (a,b)
543 const bfd_arch_info_type *a;
544 const bfd_arch_info_type *b;
546 if (a->arch != b->arch)
549 if (a->mach > b->mach)
552 if (b->mach > a->mach)
564 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
567 The default function for working out whether this is an
568 architecture hit and a machine hit.
572 bfd_default_scan (info, string)
573 const struct bfd_arch_info *info;
578 unsigned long number;
579 enum bfd_architecture arch;
581 /* First test for an exact match */
582 if (strcmp (string, info->printable_name) == 0)
585 /* See how much of the supplied string matches with the
586 architecture, eg the string m68k:68020 would match the 68k entry
587 up to the :, then we get left with the machine number */
589 for (ptr_src = string, ptr_tst = info->arch_name;
590 *ptr_src && *ptr_tst;
591 ptr_src++, ptr_tst++)
593 if (*ptr_src != *ptr_tst) break;
596 /* Chewed up as much of the architecture as will match, skip any
603 /* nothing more, then only keep this one if it is the default
604 machine for this architecture */
605 return info->the_default;
609 while (isdigit(*ptr_src))
611 number = number * 10 + *ptr_src - '0';
622 arch = bfd_arch_h8300;
626 arch = bfd_arch_h8500;
636 arch = bfd_arch_m68k;
643 arch = bfd_arch_i386;
647 arch = bfd_arch_a29k;
655 arch = bfd_arch_we32k;
660 arch = bfd_arch_i860;
664 arch = bfd_arch_i960;
671 arch = bfd_arch_mips;
675 arch = bfd_arch_rs6000;
682 if (arch != info->arch)
685 if (number != info->mach)
697 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
700 Return the architecture info struct in @var{abfd}.
703 const bfd_arch_info_type *
704 bfd_get_arch_info (abfd)
707 return abfd->arch_info;
716 const bfd_arch_info_type *bfd_lookup_arch
717 (enum bfd_architecture
719 unsigned long machine);
722 Look for the architecure info structure which matches the
723 arguments @var{arch} and @var{machine}. A machine of 0 matches the
724 machine/architecture structure which marks itself as the
728 const bfd_arch_info_type *
729 bfd_lookup_arch (arch, machine)
730 enum bfd_architecture arch;
731 unsigned long machine;
733 const bfd_arch_info_type * const *app, *ap;
735 for (app = bfd_archures_list; *app != NULL; app++)
737 for (ap = *app; ap != NULL; ap = ap->next)
740 && (ap->mach == machine
741 || (machine == 0 && ap->the_default)))
752 bfd_printable_arch_mach
755 const char *bfd_printable_arch_mach
756 (enum bfd_architecture arch, unsigned long machine);
759 Return a printable string representing the architecture and
762 This routine is depreciated.
766 bfd_printable_arch_mach (arch, machine)
767 enum bfd_architecture arch;
768 unsigned long machine;
770 const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
773 return ap->printable_name;