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[deliverable/binutils-gdb.git] / bfd / archures.c
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252b5132 1/* BFD library support routines for architectures.
d4845d57
JR		 2 Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000
3 Free Software Foundation, Inc.
252b5132
RH		 4 Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
5
6This file is part of BFD, the Binary File Descriptor library.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software
20Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22#include "bfd.h"
23#include "sysdep.h"
24#include "libbfd.h"
25#include <ctype.h>
26
27/*
28
29SECTION
30 Architectures
31
32 BFD keeps one atom in a BFD describing the
33 architecture of the data attached to the BFD: a pointer to a
34 <<bfd_arch_info_type>>.
35
36 Pointers to structures can be requested independently of a BFD
37 so that an architecture's information can be interrogated
38 without access to an open BFD.
39
40 The architecture information is provided by each architecture package.
41 The set of default architectures is selected by the macro
42 <<SELECT_ARCHITECTURES>>. This is normally set up in the
43 @file{config/@var{target}.mt} file of your choice. If the name is not
44 defined, then all the architectures supported are included.
45
46 When BFD starts up, all the architectures are called with an
47 initialize method. It is up to the architecture back end to
48 insert as many items into the list of architectures as it wants to;
49 generally this would be one for each machine and one for the
50 default case (an item with a machine field of 0).
51
52 BFD's idea of an architecture is implemented in @file{archures.c}.
53*/
54
55/*
56
57SUBSECTION
58 bfd_architecture
59
60DESCRIPTION
61 This enum gives the object file's CPU architecture, in a
62 global sense---i.e., what processor family does it belong to?
63 Another field indicates which processor within
64 the family is in use. The machine gives a number which
65 distinguishes different versions of the architecture,
66 containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
67 and 68020 and 68030 for Motorola 68020 and 68030.
68
69.enum bfd_architecture
70.{
71. bfd_arch_unknown, {* File arch not known *}
72. bfd_arch_obscure, {* Arch known, not one of these *}
73. bfd_arch_m68k, {* Motorola 68xxx *}
74.#define bfd_mach_m68000 1
75.#define bfd_mach_m68008 2
76.#define bfd_mach_m68010 3
77.#define bfd_mach_m68020 4
78.#define bfd_mach_m68030 5
79.#define bfd_mach_m68040 6
80.#define bfd_mach_m68060 7
81.#define bfd_mach_cpu32 8
82. bfd_arch_vax, {* DEC Vax *}
83. bfd_arch_i960, {* Intel 960 *}
84. {* The order of the following is important.
85. lower number indicates a machine type that
86. only accepts a subset of the instructions
87. available to machines with higher numbers.
88. The exception is the "ca", which is
89. incompatible with all other machines except
90. "core". *}
91.
92.#define bfd_mach_i960_core 1
93.#define bfd_mach_i960_ka_sa 2
94.#define bfd_mach_i960_kb_sb 3
95.#define bfd_mach_i960_mc 4
96.#define bfd_mach_i960_xa 5
97.#define bfd_mach_i960_ca 6
98.#define bfd_mach_i960_jx 7
99.#define bfd_mach_i960_hx 8
100.
101. bfd_arch_a29k, {* AMD 29000 *}
102. bfd_arch_sparc, {* SPARC *}
103.#define bfd_mach_sparc 1
104.{* The difference between v8plus and v9 is that v9 is a true 64 bit env. *}
105.#define bfd_mach_sparc_sparclet 2
106.#define bfd_mach_sparc_sparclite 3
107.#define bfd_mach_sparc_v8plus 4
108.#define bfd_mach_sparc_v8plusa 5 {* with ultrasparc add'ns *}
109.#define bfd_mach_sparc_sparclite_le 6
110.#define bfd_mach_sparc_v9 7
111.#define bfd_mach_sparc_v9a 8 {* with ultrasparc add'ns *}
112.{* Nonzero if MACH has the v9 instruction set. *}
113.#define bfd_mach_sparc_v9_p(mach) \
114. ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
115. bfd_arch_mips, {* MIPS Rxxxx *}
116.#define bfd_mach_mips3000 3000
117.#define bfd_mach_mips3900 3900
118.#define bfd_mach_mips4000 4000
119.#define bfd_mach_mips4010 4010
120.#define bfd_mach_mips4100 4100
121.#define bfd_mach_mips4111 4111
122.#define bfd_mach_mips4300 4300
123.#define bfd_mach_mips4400 4400
124.#define bfd_mach_mips4600 4600
125.#define bfd_mach_mips4650 4650
126.#define bfd_mach_mips5000 5000
127.#define bfd_mach_mips6000 6000
128.#define bfd_mach_mips8000 8000
129.#define bfd_mach_mips10000 10000
130.#define bfd_mach_mips16 16
131. bfd_arch_i386, {* Intel 386 *}
132.#define bfd_mach_i386_i386 0
133.#define bfd_mach_i386_i8086 1
134.#define bfd_mach_i386_i386_intel_syntax 2
135. bfd_arch_we32k, {* AT&T WE32xxx *}
136. bfd_arch_tahoe, {* CCI/Harris Tahoe *}
137. bfd_arch_i860, {* Intel 860 *}
5b93d8bb 138. bfd_arch_i370, {* IBM 360/370 Mainframes *}
252b5132
RH		 139. bfd_arch_romp, {* IBM ROMP PC/RT *}
140. bfd_arch_alliant, {* Alliant *}
141. bfd_arch_convex, {* Convex *}
142. bfd_arch_m88k, {* Motorola 88xxx *}
143. bfd_arch_pyramid, {* Pyramid Technology *}
144. bfd_arch_h8300, {* Hitachi H8/300 *}
145.#define bfd_mach_h8300 1
146.#define bfd_mach_h8300h 2
147.#define bfd_mach_h8300s 3
148. bfd_arch_powerpc, {* PowerPC *}
87f33987
ND		 149.#define bfd_mach_ppc 0
150.#define bfd_mach_ppc_403 403
151.#define bfd_mach_ppc_403gc 4030
152.#define bfd_mach_ppc_505 505
153.#define bfd_mach_ppc_601 601
154.#define bfd_mach_ppc_602 602
155.#define bfd_mach_ppc_603 603
156.#define bfd_mach_ppc_ec603e 6031
157.#define bfd_mach_ppc_604 604
158.#define bfd_mach_ppc_620 620
159.#define bfd_mach_ppc_630 630
160.#define bfd_mach_ppc_750 750
161.#define bfd_mach_ppc_860 860
162.#define bfd_mach_ppc_a35 35
163.#define bfd_mach_ppc_rs64ii 642
164.#define bfd_mach_ppc_rs64iii 643
165.#define bfd_mach_ppc_7400 7400
252b5132 166. bfd_arch_rs6000, {* IBM RS/6000 *}
87f33987
ND		 167.#define bfd_mach_rs6k 0
168.#define bfd_mach_rs6k_rs1 6001
169.#define bfd_mach_rs6k_rsc 6003
170.#define bfd_mach_rs6k_rs2 6002
252b5132
RH		 171. bfd_arch_hppa, {* HP PA RISC *}
172. bfd_arch_d10v, {* Mitsubishi D10V *}
7af8cca9
MM		 173.#define bfd_mach_d10v 0
174.#define bfd_mach_d10v_ts2 2
175.#define bfd_mach_d10v_ts3 3
252b5132 176. bfd_arch_d30v, {* Mitsubishi D30V *}
60bcf0fa
NC		 177. bfd_arch_m68hc11, {* Motorola 68HC11 *}
178. bfd_arch_m68hc12, {* Motorola 68HC12 *}
252b5132
RH		 179. bfd_arch_z8k, {* Zilog Z8000 *}
180.#define bfd_mach_z8001 1
181.#define bfd_mach_z8002 2
182. bfd_arch_h8500, {* Hitachi H8/500 *}
183. bfd_arch_sh, {* Hitachi SH *}
184.#define bfd_mach_sh 0
d4845d57
JR		 185.#define bfd_mach_sh2 0x20
186.#define bfd_mach_sh_dsp 0x2d
252b5132 187.#define bfd_mach_sh3 0x30
d4845d57 188.#define bfd_mach_sh3_dsp 0x3d
252b5132 189.#define bfd_mach_sh3e 0x3e
d4845d57 190.#define bfd_mach_sh4 0x40
252b5132
RH		 191. bfd_arch_alpha, {* Dec Alpha *}
192.#define bfd_mach_alpha_ev4 0x10
193.#define bfd_mach_alpha_ev5 0x20
194.#define bfd_mach_alpha_ev6 0x30
195. bfd_arch_arm, {* Advanced Risc Machines ARM *}
196.#define bfd_mach_arm_2 1
478d07d6 197.#define bfd_mach_arm_2a 2
252b5132
RH		 198.#define bfd_mach_arm_3 3
199.#define bfd_mach_arm_3M 4
478d07d6 200.#define bfd_mach_arm_4 5
252b5132 201.#define bfd_mach_arm_4T 6
478d07d6
NC		 202.#define bfd_mach_arm_5 7
203.#define bfd_mach_arm_5T 8
252b5132
RH		 204. bfd_arch_ns32k, {* National Semiconductors ns32000 *}
205. bfd_arch_w65, {* WDC 65816 *}
206. bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
81635ce4 207. bfd_arch_tic54x, {* Texas Instruments TMS320C54X *}
252b5132
RH		 208. bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
209. bfd_arch_v850, {* NEC V850 *}
210.#define bfd_mach_v850 0
211.#define bfd_mach_v850e 'E'
212.#define bfd_mach_v850ea 'A'
213. bfd_arch_arc, {* Argonaut RISC Core *}
214.#define bfd_mach_arc_base 0
215. bfd_arch_m32r, {* Mitsubishi M32R/D *}
216.#define bfd_mach_m32r 0 {* backwards compatibility *}
a23ef39f 217.#define bfd_mach_m32rx 'x'
252b5132
RH		 218. bfd_arch_mn10200, {* Matsushita MN10200 *}
219. bfd_arch_mn10300, {* Matsushita MN10300 *}
220.#define bfd_mach_mn10300 300
31f8dc8f 221.#define bfd_mach_am33 330
252b5132
RH		 222. bfd_arch_fr30,
223.#define bfd_mach_fr30 0x46523330
224. bfd_arch_mcore,
800eeca4 225. bfd_arch_ia64, {* HP/Intel ia64 *}
0bcb993b 226. bfd_arch_pj,
adde6300
AM		 227. bfd_arch_avr, {* Atmel AVR microcontrollers *}
228.#define bfd_mach_avr1 1
229.#define bfd_mach_avr2 2
230.#define bfd_mach_avr3 3
231.#define bfd_mach_avr4 4
65aa24b6 232.#define bfd_mach_avr5 5
252b5132
RH		 233. bfd_arch_last
234. };
235
236
237*/
238
239/*
240
241SUBSECTION
242 bfd_arch_info
243
244DESCRIPTION
245 This structure contains information on architectures for use
246 within BFD.
247
248.
249.typedef struct bfd_arch_info
250.{
251. int bits_per_word;
252. int bits_per_address;
253. int bits_per_byte;
254. enum bfd_architecture arch;
255. unsigned long mach;
256. const char *arch_name;
257. const char *printable_name;
258. unsigned int section_align_power;
52b219b5 259. {* True if this is the default machine for the architecture. *}
252b5132
RH		 260. boolean the_default;
261. const struct bfd_arch_info * (*compatible)
262. PARAMS ((const struct bfd_arch_info *a,
263. const struct bfd_arch_info *b));
264.
265. boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
266.
267. const struct bfd_arch_info *next;
268.} bfd_arch_info_type;
269*/
270
271extern const bfd_arch_info_type bfd_a29k_arch;
272extern const bfd_arch_info_type bfd_alpha_arch;
273extern const bfd_arch_info_type bfd_arc_arch;
274extern const bfd_arch_info_type bfd_arm_arch;
275extern const bfd_arch_info_type bfd_d10v_arch;
276extern const bfd_arch_info_type bfd_d30v_arch;
277extern const bfd_arch_info_type bfd_h8300_arch;
278extern const bfd_arch_info_type bfd_h8500_arch;
279extern const bfd_arch_info_type bfd_hppa_arch;
5b93d8bb 280extern const bfd_arch_info_type bfd_i370_arch;
252b5132
RH		 281extern const bfd_arch_info_type bfd_i386_arch;
282extern const bfd_arch_info_type bfd_i860_arch;
283extern const bfd_arch_info_type bfd_i960_arch;
284extern const bfd_arch_info_type bfd_m32r_arch;
60bcf0fa
NC		 285extern const bfd_arch_info_type bfd_m68hc11_arch;
286extern const bfd_arch_info_type bfd_m68hc12_arch;
252b5132
RH		 287extern const bfd_arch_info_type bfd_m68k_arch;
288extern const bfd_arch_info_type bfd_m88k_arch;
289extern const bfd_arch_info_type bfd_mips_arch;
290extern const bfd_arch_info_type bfd_mn10200_arch;
291extern const bfd_arch_info_type bfd_mn10300_arch;
292extern const bfd_arch_info_type bfd_powerpc_arch;
293extern const bfd_arch_info_type bfd_rs6000_arch;
0bcb993b 294extern const bfd_arch_info_type bfd_pj_arch;
252b5132
RH		 295extern const bfd_arch_info_type bfd_sh_arch;
296extern const bfd_arch_info_type bfd_sparc_arch;
297extern const bfd_arch_info_type bfd_tic30_arch;
81635ce4 298extern const bfd_arch_info_type bfd_tic54x_arch;
252b5132
RH		 299extern const bfd_arch_info_type bfd_tic80_arch;
300extern const bfd_arch_info_type bfd_vax_arch;
301extern const bfd_arch_info_type bfd_we32k_arch;
302extern const bfd_arch_info_type bfd_z8k_arch;
303extern const bfd_arch_info_type bfd_ns32k_arch;
304extern const bfd_arch_info_type bfd_w65_arch;
305extern const bfd_arch_info_type bfd_v850_arch;
306extern const bfd_arch_info_type bfd_fr30_arch;
307extern const bfd_arch_info_type bfd_mcore_arch;
adde6300 308extern const bfd_arch_info_type bfd_avr_arch;
800eeca4 309extern const bfd_arch_info_type bfd_ia64_arch;
252b5132
RH		 310
311static const bfd_arch_info_type * const bfd_archures_list[] =
312{
313#ifdef SELECT_ARCHITECTURES
314 SELECT_ARCHITECTURES,
315#else
316 &bfd_a29k_arch,
317 &bfd_alpha_arch,
318 &bfd_arc_arch,
319 &bfd_arm_arch,
320 &bfd_d10v_arch,
321 &bfd_d30v_arch,
322 &bfd_h8300_arch,
323 &bfd_h8500_arch,
324 &bfd_hppa_arch,
5b93d8bb 325 &bfd_i370_arch,
252b5132
RH		 326 &bfd_i386_arch,
327 &bfd_i860_arch,
328 &bfd_i960_arch,
329 &bfd_m32r_arch,
60bcf0fa
NC		 330 &bfd_m68hc11_arch,
331 &bfd_m68hc12_arch,
252b5132
RH		 332 &bfd_m68k_arch,
333 &bfd_m88k_arch,
334 &bfd_mips_arch,
335 &bfd_mn10200_arch,
336 &bfd_mn10300_arch,
337 &bfd_powerpc_arch,
338 &bfd_rs6000_arch,
339 &bfd_sh_arch,
340 &bfd_sparc_arch,
341 &bfd_tic30_arch,
81635ce4 342 &bfd_tic54x_arch,
252b5132
RH		 343 &bfd_tic80_arch,
344 &bfd_vax_arch,
345 &bfd_we32k_arch,
346 &bfd_z8k_arch,
347 &bfd_ns32k_arch,
348 &bfd_w65_arch,
349 &bfd_v850_arch,
350 &bfd_fr30_arch,
adde6300
AM		 351 &bfd_mcore_arch,
352 &bfd_avr_arch,
800eeca4 353 &bfd_ia64_arch,
252b5132
RH		 354#endif
355 0
356};
357
358/*
359FUNCTION
360 bfd_printable_name
361
362SYNOPSIS
363 const char *bfd_printable_name(bfd *abfd);
364
365DESCRIPTION
366 Return a printable string representing the architecture and machine
367 from the pointer to the architecture info structure.
368
369*/
370
371const char *
372bfd_printable_name (abfd)
373 bfd *abfd;
374{
375 return abfd->arch_info->printable_name;
376}
377
378
379
380/*
381FUNCTION
382 bfd_scan_arch
383
384SYNOPSIS
385 const bfd_arch_info_type *bfd_scan_arch(const char *string);
386
387DESCRIPTION
388 Figure out if BFD supports any cpu which could be described with
389 the name @var{string}. Return a pointer to an <<arch_info>>
390 structure if a machine is found, otherwise NULL.
391
392*/
393
394const bfd_arch_info_type *
395bfd_scan_arch (string)
396 const char *string;
397{
398 const bfd_arch_info_type * const *app, *ap;
399
400 /* Look through all the installed architectures */
401 for (app = bfd_archures_list; *app != NULL; app++)
402 {
403 for (ap = *app; ap != NULL; ap = ap->next)
404 {
405 if (ap->scan (ap, string))
406 return ap;
407 }
408 }
409
410 return NULL;
411}
412
413
414
415/*
416FUNCTION
417 bfd_arch_list
418
419SYNOPSIS
420 const char **bfd_arch_list(void);
421
422DESCRIPTION
423 Return a freshly malloced NULL-terminated vector of the names
424 of all the valid BFD architectures. Do not modify the names.
425
426*/
427
428const char **
429bfd_arch_list ()
430{
431 int vec_length = 0;
432 const char **name_ptr;
433 const char **name_list;
434 const bfd_arch_info_type * const *app;
435
436 /* Determine the number of architectures */
437 vec_length = 0;
438 for (app = bfd_archures_list; *app != NULL; app++)
439 {
440 const bfd_arch_info_type *ap;
441 for (ap = *app; ap != NULL; ap = ap->next)
442 {
443 vec_length++;
444 }
445 }
446
52b219b5 447 name_list = (const char **)
252b5132
RH		 448 bfd_malloc ((vec_length + 1) * sizeof (char **));
449 if (name_list == NULL)
450 return NULL;
451
452 /* Point the list at each of the names */
453 name_ptr = name_list;
454 for (app = bfd_archures_list; *app != NULL; app++)
455 {
456 const bfd_arch_info_type *ap;
457 for (ap = *app; ap != NULL; ap = ap->next)
458 {
459 *name_ptr = ap->printable_name;
460 name_ptr++;
461 }
462 }
463 *name_ptr = NULL;
464
465 return name_list;
466}
467
468
469
470/*
471FUNCTION
472 bfd_arch_get_compatible
473
474SYNOPSIS
475 const bfd_arch_info_type *bfd_arch_get_compatible(
476 const bfd *abfd,
477 const bfd *bbfd);
478
479DESCRIPTION
480 Determine whether two BFDs'
481 architectures and machine types are compatible. Calculates
482 the lowest common denominator between the two architectures
483 and machine types implied by the BFDs and returns a pointer to
484 an <<arch_info>> structure describing the compatible machine.
485*/
486
487const bfd_arch_info_type *
488bfd_arch_get_compatible (abfd, bbfd)
489 const bfd *abfd;
490 const bfd *bbfd;
491{
492 /* If either architecture is unknown, then all we can do is assume
493 the user knows what he's doing. */
494 if (abfd->arch_info->arch == bfd_arch_unknown)
495 return bbfd->arch_info;
496 if (bbfd->arch_info->arch == bfd_arch_unknown)
497 return abfd->arch_info;
498
499 /* Otherwise architecture-specific code has to decide. */
500 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
501}
502
503
504/*
505INTERNAL_DEFINITION
506 bfd_default_arch_struct
507
508DESCRIPTION
509 The <<bfd_default_arch_struct>> is an item of
510 <<bfd_arch_info_type>> which has been initialized to a fairly
511 generic state. A BFD starts life by pointing to this
512 structure, until the correct back end has determined the real
513 architecture of the file.
514
515.extern const bfd_arch_info_type bfd_default_arch_struct;
516
517*/
518
519const bfd_arch_info_type bfd_default_arch_struct =
520{
521 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
522 bfd_default_compatible,
523 bfd_default_scan,
524 0,
525};
526
527/*
528FUNCTION
529 bfd_set_arch_info
530
531SYNOPSIS
532 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
533
534DESCRIPTION
535 Set the architecture info of @var{abfd} to @var{arg}.
536*/
537
538void
539bfd_set_arch_info (abfd, arg)
540 bfd *abfd;
541 const bfd_arch_info_type *arg;
542{
543 abfd->arch_info = arg;
544}
545
546/*
547INTERNAL_FUNCTION
548 bfd_default_set_arch_mach
549
550SYNOPSIS
551 boolean bfd_default_set_arch_mach(bfd *abfd,
552 enum bfd_architecture arch,
553 unsigned long mach);
554
555DESCRIPTION
556 Set the architecture and machine type in BFD @var{abfd}
557 to @var{arch} and @var{mach}. Find the correct
558 pointer to a structure and insert it into the <<arch_info>>
559 pointer.
560*/
561
562boolean
563bfd_default_set_arch_mach (abfd, arch, mach)
564 bfd *abfd;
565 enum bfd_architecture arch;
566 unsigned long mach;
567{
568 const bfd_arch_info_type * const *app, *ap;
569
570 for (app = bfd_archures_list; *app != NULL; app++)
571 {
572 for (ap = *app; ap != NULL; ap = ap->next)
573 {
574 if (ap->arch == arch
575 && (ap->mach == mach
576 || (mach == 0 && ap->the_default)))
577 {
578 abfd->arch_info = ap;
579 return true;
580 }
581 }
582 }
583
584 abfd->arch_info = &bfd_default_arch_struct;
585 bfd_set_error (bfd_error_bad_value);
586 return false;
587}
588
589
590/*
591FUNCTION
592 bfd_get_arch
593
594SYNOPSIS
595 enum bfd_architecture bfd_get_arch(bfd *abfd);
596
597DESCRIPTION
598 Return the enumerated type which describes the BFD @var{abfd}'s
599 architecture.
600
601*/
602
603enum bfd_architecture
604bfd_get_arch (abfd)
605 bfd *abfd;
606{
607 return abfd->arch_info->arch;
608}
609
610/*
611FUNCTION
612 bfd_get_mach
613
614SYNOPSIS
615 unsigned long bfd_get_mach(bfd *abfd);
616
617DESCRIPTION
618 Return the long type which describes the BFD @var{abfd}'s
619 machine.
620*/
621
622unsigned long
623bfd_get_mach (abfd)
624 bfd *abfd;
625{
626 return abfd->arch_info->mach;
627}
628
629/*
630FUNCTION
631 bfd_arch_bits_per_byte
632
633SYNOPSIS
634 unsigned int bfd_arch_bits_per_byte(bfd *abfd);
635
636DESCRIPTION
637 Return the number of bits in one of the BFD @var{abfd}'s
638 architecture's bytes.
639
640*/
641
642unsigned int
643bfd_arch_bits_per_byte (abfd)
644 bfd *abfd;
645{
646 return abfd->arch_info->bits_per_byte;
647}
648
649/*
650FUNCTION
651 bfd_arch_bits_per_address
652
653SYNOPSIS
654 unsigned int bfd_arch_bits_per_address(bfd *abfd);
655
656DESCRIPTION
657 Return the number of bits in one of the BFD @var{abfd}'s
658 architecture's addresses.
659*/
660
661unsigned int
662bfd_arch_bits_per_address (abfd)
663 bfd *abfd;
664{
665 return abfd->arch_info->bits_per_address;
666}
667
668
669/*
670INTERNAL_FUNCTION
671 bfd_default_compatible
672
673SYNOPSIS
674 const bfd_arch_info_type *bfd_default_compatible
675 (const bfd_arch_info_type *a,
676 const bfd_arch_info_type *b);
677
678DESCRIPTION
679 The default function for testing for compatibility.
680*/
681
682const bfd_arch_info_type *
683bfd_default_compatible (a,b)
684 const bfd_arch_info_type *a;
685 const bfd_arch_info_type *b;
686{
687 if (a->arch != b->arch)
688 return NULL;
689
690 if (a->mach > b->mach)
691 return a;
692
693 if (b->mach > a->mach)
694 return b;
695
696 return a;
697}
698
699
700/*
701INTERNAL_FUNCTION
702 bfd_default_scan
703
704SYNOPSIS
705 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
706
707DESCRIPTION
708 The default function for working out whether this is an
709 architecture hit and a machine hit.
710*/
711
712boolean
713bfd_default_scan (info, string)
714 const struct bfd_arch_info *info;
715 const char *string;
716{
717 const char *ptr_src;
718 const char *ptr_tst;
719 unsigned long number;
720 enum bfd_architecture arch;
721 const char *printable_name_colon;
722
723 /* Exact match of the architecture name (ARCH_NAME) and also the
724 default architecture? */
725 if (strcasecmp (string, info->arch_name) == 0
726 && info->the_default)
727 return true;
728
729 /* Exact match of the machine name (PRINTABLE_NAME)? */
730 if (strcasecmp (string, info->printable_name) == 0)
731 return true;
732
733 /* Given that printable_name contains no colon, attempt to match:
734 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
735 printable_name_colon = strchr (info->printable_name, ':');
736 if (printable_name_colon == NULL)
737 {
738 int strlen_arch_name = strlen (info->arch_name);
739 if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
740 {
741 if (string[strlen_arch_name] == ':')
742 {
743 if (strcasecmp (string + strlen_arch_name + 1,
744 info->printable_name) == 0)
745 return true;
746 }
747 else
748 {
749 if (strcasecmp (string + strlen_arch_name,
750 info->printable_name) == 0)
751 return true;
752 }
753 }
754 }
755
756 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
757 Attempt to match: <arch> <mach>? */
758 if (printable_name_colon != NULL)
759 {
760 int colon_index = printable_name_colon - info->printable_name;
761 if (strncasecmp (string, info->printable_name, colon_index) == 0
762 && strcasecmp (string + colon_index,
763 info->printable_name + colon_index + 1) == 0)
764 return true;
765 }
766
767 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
768 attempt to match just <mach>, it could be ambigious. This test
769 is left until later. */
770
771 /* NOTE: The below is retained for compatibility only. Please do not
772 add to this code */
773
774 /* See how much of the supplied string matches with the
775 architecture, eg the string m68k:68020 would match the 68k entry
776 up to the :, then we get left with the machine number */
777
778 for (ptr_src = string, ptr_tst = info->arch_name;
779 *ptr_src && *ptr_tst;
780 ptr_src++, ptr_tst++)
781 {
782 if (*ptr_src != *ptr_tst) break;
783 }
784
785 /* Chewed up as much of the architecture as will match, skip any
786 colons */
787 if (*ptr_src == ':')
788 ptr_src++;
789
790 if (*ptr_src == 0)
791 {
792 /* nothing more, then only keep this one if it is the default
793 machine for this architecture */
794 return info->the_default;
795 }
796
797 number = 0;
798 while (isdigit ((unsigned char) *ptr_src))
799 {
800 number = number * 10 + *ptr_src - '0';
801 ptr_src++;
802 }
803
804 /* NOTE: The below is retained for compatibility only.
805 PLEASE DO NOT ADD TO THIS CODE. */
806
807 switch (number)
808 {
809 /* FIXME: These are needed to parse IEEE objects. */
810 case 68000:
811 arch = bfd_arch_m68k;
812 number = bfd_mach_m68000;
813 break;
814 case 68010:
815 arch = bfd_arch_m68k;
816 number = bfd_mach_m68010;
817 break;
818 case 68020:
819 arch = bfd_arch_m68k;
820 number = bfd_mach_m68020;
821 break;
822 case 68030:
823 arch = bfd_arch_m68k;
824 number = bfd_mach_m68030;
825 break;
826 case 68040:
827 arch = bfd_arch_m68k;
828 number = bfd_mach_m68040;
829 break;
830 case 68060:
831 arch = bfd_arch_m68k;
832 number = bfd_mach_m68060;
833 break;
834 case 68332:
835 arch = bfd_arch_m68k;
836 number = bfd_mach_cpu32;
837 break;
838
839 case 32000:
840 arch = bfd_arch_we32k;
841 break;
842
843 case 3000:
844 arch = bfd_arch_mips;
845 number = bfd_mach_mips3000;
846 break;
847
848 case 4000:
849 arch = bfd_arch_mips;
850 number = bfd_mach_mips4000;
851 break;
852
853 case 6000:
854 arch = bfd_arch_rs6000;
855 break;
856
d4845d57
JR		 857 case 7410:
858 arch = bfd_arch_sh;
859 number = bfd_mach_sh_dsp;
860 break;
861
862 case 7708:
863 arch = bfd_arch_sh;
864 number = bfd_mach_sh3;
865 break;
866
867 case 7729:
868 arch = bfd_arch_sh;
869 number = bfd_mach_sh3_dsp;
870 break;
871
872 case 7750:
873 arch = bfd_arch_sh;
874 number = bfd_mach_sh4;
875 break;
876
252b5132
RH		 877 default:
878 return false;
879 }
880
881 if (arch != info->arch)
882 return false;
883
884 if (number != info->mach)
885 return false;
886
887 return true;
888}
889
890
891/*
892FUNCTION
893 bfd_get_arch_info
894
895SYNOPSIS
896 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
897
898DESCRIPTION
899 Return the architecture info struct in @var{abfd}.
900*/
901
902const bfd_arch_info_type *
903bfd_get_arch_info (abfd)
904 bfd *abfd;
905{
906 return abfd->arch_info;
907}
908
909
910/*
911FUNCTION
912 bfd_lookup_arch
913
914SYNOPSIS
915 const bfd_arch_info_type *bfd_lookup_arch
916 (enum bfd_architecture
917 arch,
918 unsigned long machine);
919
920DESCRIPTION
921 Look for the architecure info structure which matches the
922 arguments @var{arch} and @var{machine}. A machine of 0 matches the
923 machine/architecture structure which marks itself as the
924 default.
925*/
926
927const bfd_arch_info_type *
928bfd_lookup_arch (arch, machine)
929 enum bfd_architecture arch;
930 unsigned long machine;
931{
932 const bfd_arch_info_type * const *app, *ap;
933
934 for (app = bfd_archures_list; *app != NULL; app++)
935 {
936 for (ap = *app; ap != NULL; ap = ap->next)
937 {
938 if (ap->arch == arch
939 && (ap->mach == machine
940 || (machine == 0 && ap->the_default)))
941 return ap;
942 }
943 }
944
945 return NULL;
946}
947
948
949/*
950FUNCTION
951 bfd_printable_arch_mach
952
953SYNOPSIS
954 const char *bfd_printable_arch_mach
955 (enum bfd_architecture arch, unsigned long machine);
956
957DESCRIPTION
958 Return a printable string representing the architecture and
959 machine type.
960
961 This routine is depreciated.
962*/
963
964const char *
965bfd_printable_arch_mach (arch, machine)
966 enum bfd_architecture arch;
967 unsigned long machine;
968{
9a968f43 969 const bfd_arch_info_type * ap = bfd_lookup_arch (arch, machine);
252b5132
RH		 970
971 if (ap)
972 return ap->printable_name;
973 return "UNKNOWN!";
974}
9a968f43
NC		 975
976/*
977FUNCTION
978 bfd_octets_per_byte
979
980SYNOPSIS
f6af82bd 981 unsigned int bfd_octets_per_byte(bfd *abfd);
9a968f43
NC		 982
983DESCRIPTION
984 Return the number of octets (8-bit quantities) per target byte
985 (minimum addressable unit). In most cases, this will be one, but some
986 DSP targets have 16, 32, or even 48 bits per byte.
987
988*/
989
f6af82bd 990unsigned int
9a968f43
NC		 991bfd_octets_per_byte (abfd)
992 bfd * abfd;
993{
994 return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
995 bfd_get_mach (abfd));
996}
997
998/*
999FUNCTION
1000 bfd_arch_mach_octets_per_byte
1001
1002SYNOPSIS
f6af82bd
AM		 1003 unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1004 unsigned long machine);
9a968f43
NC		 1005
1006DESCRIPTION
1007 See bfd_octets_per_byte.
1008
1009 This routine is provided for those cases where a bfd * is not
1010 available
1011*/
1012
f6af82bd 1013unsigned int
9a968f43
NC		 1014bfd_arch_mach_octets_per_byte (arch, mach)
1015 enum bfd_architecture arch;
1016 unsigned long mach;
1017{
1018 const bfd_arch_info_type * ap = bfd_lookup_arch (arch, mach);
1019
1020 if (ap)
1021 return ap->bits_per_byte / 8;
1022 return 1;
1023}
GDB Binutils - Deliverables
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