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1/* BFD library support routines for architectures.
2 Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000
3 Free Software Foundation, Inc.
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.#define bfd_mach_sparc_v8plusb 9 {* with cheetah add'ns *}
113.#define bfd_mach_sparc_v9b 10 {* with cheetah add'ns *}
114.{* Nonzero if MACH has the v9 instruction set. *}
115.#define bfd_mach_sparc_v9_p(mach) \
116. ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
117. && (mach) != bfd_mach_sparc_sparclite_le)
118. bfd_arch_mips, {* MIPS Rxxxx *}
119.#define bfd_mach_mips3000 3000
120.#define bfd_mach_mips3900 3900
121.#define bfd_mach_mips4000 4000
122.#define bfd_mach_mips4010 4010
123.#define bfd_mach_mips4100 4100
124.#define bfd_mach_mips4111 4111
125.#define bfd_mach_mips4300 4300
126.#define bfd_mach_mips4400 4400
127.#define bfd_mach_mips4600 4600
128.#define bfd_mach_mips4650 4650
129.#define bfd_mach_mips5000 5000
130.#define bfd_mach_mips6000 6000
131.#define bfd_mach_mips8000 8000
132.#define bfd_mach_mips10000 10000
133.#define bfd_mach_mips4K 32
134.#define bfd_mach_mips16 16
135. bfd_arch_i386, {* Intel 386 *}
136.#define bfd_mach_i386_i386 0
137.#define bfd_mach_i386_i8086 1
138.#define bfd_mach_i386_i386_intel_syntax 2
139. bfd_arch_we32k, {* AT&T WE32xxx *}
140. bfd_arch_tahoe, {* CCI/Harris Tahoe *}
141. bfd_arch_i860, {* Intel 860 *}
142. bfd_arch_i370, {* IBM 360/370 Mainframes *}
143. bfd_arch_romp, {* IBM ROMP PC/RT *}
144. bfd_arch_alliant, {* Alliant *}
145. bfd_arch_convex, {* Convex *}
146. bfd_arch_m88k, {* Motorola 88xxx *}
147. bfd_arch_pyramid, {* Pyramid Technology *}
148. bfd_arch_h8300, {* Hitachi H8/300 *}
149.#define bfd_mach_h8300 1
150.#define bfd_mach_h8300h 2
151.#define bfd_mach_h8300s 3
152. bfd_arch_powerpc, {* PowerPC *}
153.#define bfd_mach_ppc 0
154.#define bfd_mach_ppc_403 403
155.#define bfd_mach_ppc_403gc 4030
156.#define bfd_mach_ppc_505 505
157.#define bfd_mach_ppc_601 601
158.#define bfd_mach_ppc_602 602
159.#define bfd_mach_ppc_603 603
160.#define bfd_mach_ppc_ec603e 6031
161.#define bfd_mach_ppc_604 604
162.#define bfd_mach_ppc_620 620
163.#define bfd_mach_ppc_630 630
164.#define bfd_mach_ppc_750 750
165.#define bfd_mach_ppc_860 860
166.#define bfd_mach_ppc_a35 35
167.#define bfd_mach_ppc_rs64ii 642
168.#define bfd_mach_ppc_rs64iii 643
169.#define bfd_mach_ppc_7400 7400
170. bfd_arch_rs6000, {* IBM RS/6000 *}
171.#define bfd_mach_rs6k 0
172.#define bfd_mach_rs6k_rs1 6001
173.#define bfd_mach_rs6k_rsc 6003
174.#define bfd_mach_rs6k_rs2 6002
175. bfd_arch_hppa, {* HP PA RISC *}
176. bfd_arch_d10v, {* Mitsubishi D10V *}
177.#define bfd_mach_d10v 0
178.#define bfd_mach_d10v_ts2 2
179.#define bfd_mach_d10v_ts3 3
180. bfd_arch_d30v, {* Mitsubishi D30V *}
181. bfd_arch_m68hc11, {* Motorola 68HC11 *}
182. bfd_arch_m68hc12, {* Motorola 68HC12 *}
183. bfd_arch_z8k, {* Zilog Z8000 *}
184.#define bfd_mach_z8001 1
185.#define bfd_mach_z8002 2
186. bfd_arch_h8500, {* Hitachi H8/500 *}
187. bfd_arch_sh, {* Hitachi SH *}
188.#define bfd_mach_sh 0
189.#define bfd_mach_sh2 0x20
190.#define bfd_mach_sh_dsp 0x2d
191.#define bfd_mach_sh3 0x30
192.#define bfd_mach_sh3_dsp 0x3d
193.#define bfd_mach_sh3e 0x3e
194.#define bfd_mach_sh4 0x40
195. bfd_arch_alpha, {* Dec Alpha *}
196.#define bfd_mach_alpha_ev4 0x10
197.#define bfd_mach_alpha_ev5 0x20
198.#define bfd_mach_alpha_ev6 0x30
199. bfd_arch_arm, {* Advanced Risc Machines ARM *}
200.#define bfd_mach_arm_2 1
201.#define bfd_mach_arm_2a 2
202.#define bfd_mach_arm_3 3
203.#define bfd_mach_arm_3M 4
204.#define bfd_mach_arm_4 5
205.#define bfd_mach_arm_4T 6
206.#define bfd_mach_arm_5 7
207.#define bfd_mach_arm_5T 8
208. bfd_arch_ns32k, {* National Semiconductors ns32000 *}
209. bfd_arch_w65, {* WDC 65816 *}
210. bfd_arch_tic30, {* Texas Instruments TMS320C30 *}
211. bfd_arch_tic54x, {* Texas Instruments TMS320C54X *}
212. bfd_arch_tic80, {* TI TMS320c80 (MVP) *}
213. bfd_arch_v850, {* NEC V850 *}
214.#define bfd_mach_v850 0
215.#define bfd_mach_v850e 'E'
216.#define bfd_mach_v850ea 'A'
217. bfd_arch_arc, {* Argonaut RISC Core *}
218.#define bfd_mach_arc_base 0
219. bfd_arch_m32r, {* Mitsubishi M32R/D *}
220.#define bfd_mach_m32r 0 {* backwards compatibility *}
221.#define bfd_mach_m32rx 'x'
222. bfd_arch_mn10200, {* Matsushita MN10200 *}
223. bfd_arch_mn10300, {* Matsushita MN10300 *}
224.#define bfd_mach_mn10300 300
225.#define bfd_mach_am33 330
226. bfd_arch_fr30,
227.#define bfd_mach_fr30 0x46523330
228. bfd_arch_mcore,
229. bfd_arch_ia64, {* HP/Intel ia64 *}
230.#define bfd_mach_ia64_elf64 0
231.#define bfd_mach_ia64_elf32 1
232. bfd_arch_pj,
233. bfd_arch_avr, {* Atmel AVR microcontrollers *}
234.#define bfd_mach_avr1 1
235.#define bfd_mach_avr2 2
236.#define bfd_mach_avr3 3
237.#define bfd_mach_avr4 4
238.#define bfd_mach_avr5 5
239. bfd_arch_cris, {* Axis CRIS *}
240. bfd_arch_last
241. };
242
243*/
244
245/*
246
247SUBSECTION
248 bfd_arch_info
249
250DESCRIPTION
251 This structure contains information on architectures for use
252 within BFD.
253
254.
255.typedef struct bfd_arch_info
256.{
257. int bits_per_word;
258. int bits_per_address;
259. int bits_per_byte;
260. enum bfd_architecture arch;
261. unsigned long mach;
262. const char *arch_name;
263. const char *printable_name;
264. unsigned int section_align_power;
265. {* True if this is the default machine for the architecture. *}
266. boolean the_default;
267. const struct bfd_arch_info * (*compatible)
268. PARAMS ((const struct bfd_arch_info *a,
269. const struct bfd_arch_info *b));
270.
271. boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
272.
273. const struct bfd_arch_info *next;
274.} bfd_arch_info_type;
275*/
276
277extern const bfd_arch_info_type bfd_a29k_arch;
278extern const bfd_arch_info_type bfd_alpha_arch;
279extern const bfd_arch_info_type bfd_arc_arch;
280extern const bfd_arch_info_type bfd_arm_arch;
281extern const bfd_arch_info_type bfd_cris_arch;
282extern const bfd_arch_info_type bfd_d10v_arch;
283extern const bfd_arch_info_type bfd_d30v_arch;
284extern const bfd_arch_info_type bfd_h8300_arch;
285extern const bfd_arch_info_type bfd_h8500_arch;
286extern const bfd_arch_info_type bfd_hppa_arch;
287extern const bfd_arch_info_type bfd_i370_arch;
288extern const bfd_arch_info_type bfd_i386_arch;
289extern const bfd_arch_info_type bfd_i860_arch;
290extern const bfd_arch_info_type bfd_i960_arch;
291extern const bfd_arch_info_type bfd_m32r_arch;
292extern const bfd_arch_info_type bfd_m68hc11_arch;
293extern const bfd_arch_info_type bfd_m68hc12_arch;
294extern const bfd_arch_info_type bfd_m68k_arch;
295extern const bfd_arch_info_type bfd_m88k_arch;
296extern const bfd_arch_info_type bfd_mips_arch;
297extern const bfd_arch_info_type bfd_mn10200_arch;
298extern const bfd_arch_info_type bfd_mn10300_arch;
299extern const bfd_arch_info_type bfd_powerpc_arch;
300extern const bfd_arch_info_type bfd_rs6000_arch;
301extern const bfd_arch_info_type bfd_pj_arch;
302extern const bfd_arch_info_type bfd_sh_arch;
303extern const bfd_arch_info_type bfd_sparc_arch;
304extern const bfd_arch_info_type bfd_tic30_arch;
305extern const bfd_arch_info_type bfd_tic54x_arch;
306extern const bfd_arch_info_type bfd_tic80_arch;
307extern const bfd_arch_info_type bfd_vax_arch;
308extern const bfd_arch_info_type bfd_we32k_arch;
309extern const bfd_arch_info_type bfd_z8k_arch;
310extern const bfd_arch_info_type bfd_ns32k_arch;
311extern const bfd_arch_info_type bfd_w65_arch;
312extern const bfd_arch_info_type bfd_v850_arch;
313extern const bfd_arch_info_type bfd_fr30_arch;
314extern const bfd_arch_info_type bfd_mcore_arch;
315extern const bfd_arch_info_type bfd_avr_arch;
316extern const bfd_arch_info_type bfd_ia64_arch;
317
318static const bfd_arch_info_type * const bfd_archures_list[] =
319{
320#ifdef SELECT_ARCHITECTURES
321 SELECT_ARCHITECTURES,
322#else
323 &bfd_a29k_arch,
324 &bfd_alpha_arch,
325 &bfd_arc_arch,
326 &bfd_arm_arch,
327 &bfd_cris_arch,
328 &bfd_d10v_arch,
329 &bfd_d30v_arch,
330 &bfd_h8300_arch,
331 &bfd_h8500_arch,
332 &bfd_hppa_arch,
333 &bfd_i370_arch,
334 &bfd_i386_arch,
335 &bfd_i860_arch,
336 &bfd_i960_arch,
337 &bfd_m32r_arch,
338 &bfd_m68hc11_arch,
339 &bfd_m68hc12_arch,
340 &bfd_m68k_arch,
341 &bfd_m88k_arch,
342 &bfd_mips_arch,
343 &bfd_mn10200_arch,
344 &bfd_mn10300_arch,
345 &bfd_powerpc_arch,
346 &bfd_rs6000_arch,
347 &bfd_sh_arch,
348 &bfd_sparc_arch,
349 &bfd_tic30_arch,
350 &bfd_tic54x_arch,
351 &bfd_tic80_arch,
352 &bfd_vax_arch,
353 &bfd_we32k_arch,
354 &bfd_z8k_arch,
355 &bfd_ns32k_arch,
356 &bfd_w65_arch,
357 &bfd_v850_arch,
358 &bfd_fr30_arch,
359 &bfd_mcore_arch,
360 &bfd_avr_arch,
361 &bfd_ia64_arch,
362#endif
363 0
364};
365
366/*
367FUNCTION
368 bfd_printable_name
369
370SYNOPSIS
371 const char *bfd_printable_name(bfd *abfd);
372
373DESCRIPTION
374 Return a printable string representing the architecture and machine
375 from the pointer to the architecture info structure.
376
377*/
378
379const char *
380bfd_printable_name (abfd)
381 bfd *abfd;
382{
383 return abfd->arch_info->printable_name;
384}
385
386/*
387FUNCTION
388 bfd_scan_arch
389
390SYNOPSIS
391 const bfd_arch_info_type *bfd_scan_arch(const char *string);
392
393DESCRIPTION
394 Figure out if BFD supports any cpu which could be described with
395 the name @var{string}. Return a pointer to an <<arch_info>>
396 structure if a machine is found, otherwise NULL.
397
398*/
399
400const bfd_arch_info_type *
401bfd_scan_arch (string)
402 const char *string;
403{
404 const bfd_arch_info_type * const *app, *ap;
405
406 /* Look through all the installed architectures */
407 for (app = bfd_archures_list; *app != NULL; app++)
408 {
409 for (ap = *app; ap != NULL; ap = ap->next)
410 {
411 if (ap->scan (ap, string))
412 return ap;
413 }
414 }
415
416 return NULL;
417}
418
419/*
420FUNCTION
421 bfd_arch_list
422
423SYNOPSIS
424 const char **bfd_arch_list(void);
425
426DESCRIPTION
427 Return a freshly malloced NULL-terminated vector of the names
428 of all the valid BFD architectures. Do not modify the names.
429
430*/
431
432const char **
433bfd_arch_list ()
434{
435 int vec_length = 0;
436 const char **name_ptr;
437 const char **name_list;
438 const bfd_arch_info_type * const *app;
439
440 /* Determine the number of architectures */
441 vec_length = 0;
442 for (app = bfd_archures_list; *app != NULL; app++)
443 {
444 const bfd_arch_info_type *ap;
445 for (ap = *app; ap != NULL; ap = ap->next)
446 {
447 vec_length++;
448 }
449 }
450
451 name_list = (const char **)
452 bfd_malloc ((vec_length + 1) * sizeof (char **));
453 if (name_list == NULL)
454 return NULL;
455
456 /* Point the list at each of the names */
457 name_ptr = name_list;
458 for (app = bfd_archures_list; *app != NULL; app++)
459 {
460 const bfd_arch_info_type *ap;
461 for (ap = *app; ap != NULL; ap = ap->next)
462 {
463 *name_ptr = ap->printable_name;
464 name_ptr++;
465 }
466 }
467 *name_ptr = NULL;
468
469 return name_list;
470}
471
472/*
473FUNCTION
474 bfd_arch_get_compatible
475
476SYNOPSIS
477 const bfd_arch_info_type *bfd_arch_get_compatible(
478 const bfd *abfd,
479 const bfd *bbfd);
480
481DESCRIPTION
482 Determine whether two BFDs'
483 architectures and machine types are compatible. Calculates
484 the lowest common denominator between the two architectures
485 and machine types implied by the BFDs and returns a pointer to
486 an <<arch_info>> structure describing the compatible machine.
487*/
488
489const bfd_arch_info_type *
490bfd_arch_get_compatible (abfd, bbfd)
491 const bfd *abfd;
492 const bfd *bbfd;
493{
494 /* If either architecture is unknown, then all we can do is assume
495 the user knows what he's doing. */
496 if (abfd->arch_info->arch == bfd_arch_unknown)
497 return bbfd->arch_info;
498 if (bbfd->arch_info->arch == bfd_arch_unknown)
499 return abfd->arch_info;
500
501 /* Otherwise architecture-specific code has to decide. */
502 return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
503}
504
505/*
506INTERNAL_DEFINITION
507 bfd_default_arch_struct
508
509DESCRIPTION
510 The <<bfd_default_arch_struct>> is an item of
511 <<bfd_arch_info_type>> which has been initialized to a fairly
512 generic state. A BFD starts life by pointing to this
513 structure, until the correct back end has determined the real
514 architecture of the file.
515
516.extern const bfd_arch_info_type bfd_default_arch_struct;
517
518*/
519
520const bfd_arch_info_type bfd_default_arch_struct =
521{
522 32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
523 bfd_default_compatible,
524 bfd_default_scan,
525 0,
526};
527
528/*
529FUNCTION
530 bfd_set_arch_info
531
532SYNOPSIS
533 void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
534
535DESCRIPTION
536 Set the architecture info of @var{abfd} to @var{arg}.
537*/
538
539void
540bfd_set_arch_info (abfd, arg)
541 bfd *abfd;
542 const bfd_arch_info_type *arg;
543{
544 abfd->arch_info = arg;
545}
546
547/*
548INTERNAL_FUNCTION
549 bfd_default_set_arch_mach
550
551SYNOPSIS
552 boolean bfd_default_set_arch_mach(bfd *abfd,
553 enum bfd_architecture arch,
554 unsigned long mach);
555
556DESCRIPTION
557 Set the architecture and machine type in BFD @var{abfd}
558 to @var{arch} and @var{mach}. Find the correct
559 pointer to a structure and insert it into the <<arch_info>>
560 pointer.
561*/
562
563boolean
564bfd_default_set_arch_mach (abfd, arch, mach)
565 bfd *abfd;
566 enum bfd_architecture arch;
567 unsigned long mach;
568{
569 const bfd_arch_info_type * const *app, *ap;
570
571 for (app = bfd_archures_list; *app != NULL; app++)
572 {
573 for (ap = *app; ap != NULL; ap = ap->next)
574 {
575 if (ap->arch == arch
576 && (ap->mach == mach
577 || (mach == 0 && ap->the_default)))
578 {
579 abfd->arch_info = ap;
580 return true;
581 }
582 }
583 }
584
585 abfd->arch_info = &bfd_default_arch_struct;
586 bfd_set_error (bfd_error_bad_value);
587 return false;
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/*
669INTERNAL_FUNCTION
670 bfd_default_compatible
671
672SYNOPSIS
673 const bfd_arch_info_type *bfd_default_compatible
674 (const bfd_arch_info_type *a,
675 const bfd_arch_info_type *b);
676
677DESCRIPTION
678 The default function for testing for compatibility.
679*/
680
681const bfd_arch_info_type *
682bfd_default_compatible (a,b)
683 const bfd_arch_info_type *a;
684 const bfd_arch_info_type *b;
685{
686 if (a->arch != b->arch)
687 return NULL;
688
689 if (a->mach > b->mach)
690 return a;
691
692 if (b->mach > a->mach)
693 return b;
694
695 return a;
696}
697
698/*
699INTERNAL_FUNCTION
700 bfd_default_scan
701
702SYNOPSIS
703 boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
704
705DESCRIPTION
706 The default function for working out whether this is an
707 architecture hit and a machine hit.
708*/
709
710boolean
711bfd_default_scan (info, string)
712 const struct bfd_arch_info *info;
713 const char *string;
714{
715 const char *ptr_src;
716 const char *ptr_tst;
717 unsigned long number;
718 enum bfd_architecture arch;
719 const char *printable_name_colon;
720
721 /* Exact match of the architecture name (ARCH_NAME) and also the
722 default architecture? */
723 if (strcasecmp (string, info->arch_name) == 0
724 && info->the_default)
725 return true;
726
727 /* Exact match of the machine name (PRINTABLE_NAME)? */
728 if (strcasecmp (string, info->printable_name) == 0)
729 return true;
730
731 /* Given that printable_name contains no colon, attempt to match:
732 ARCH_NAME [ ":" ] PRINTABLE_NAME? */
733 printable_name_colon = strchr (info->printable_name, ':');
734 if (printable_name_colon == NULL)
735 {
736 int strlen_arch_name = strlen (info->arch_name);
737 if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
738 {
739 if (string[strlen_arch_name] == ':')
740 {
741 if (strcasecmp (string + strlen_arch_name + 1,
742 info->printable_name) == 0)
743 return true;
744 }
745 else
746 {
747 if (strcasecmp (string + strlen_arch_name,
748 info->printable_name) == 0)
749 return true;
750 }
751 }
752 }
753
754 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
755 Attempt to match: <arch> <mach>? */
756 if (printable_name_colon != NULL)
757 {
758 int colon_index = printable_name_colon - info->printable_name;
759 if (strncasecmp (string, info->printable_name, colon_index) == 0
760 && strcasecmp (string + colon_index,
761 info->printable_name + colon_index + 1) == 0)
762 return true;
763 }
764
765 /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
766 attempt to match just <mach>, it could be ambigious. This test
767 is left until later. */
768
769 /* NOTE: The below is retained for compatibility only. Please do not
770 add to this code */
771
772 /* See how much of the supplied string matches with the
773 architecture, eg the string m68k:68020 would match the 68k entry
774 up to the :, then we get left with the machine number */
775
776 for (ptr_src = string, ptr_tst = info->arch_name;
777 *ptr_src && *ptr_tst;
778 ptr_src++, ptr_tst++)
779 {
780 if (*ptr_src != *ptr_tst) break;
781 }
782
783 /* Chewed up as much of the architecture as will match, skip any
784 colons */
785 if (*ptr_src == ':')
786 ptr_src++;
787
788 if (*ptr_src == 0)
789 {
790 /* nothing more, then only keep this one if it is the default
791 machine for this architecture */
792 return info->the_default;
793 }
794
795 number = 0;
796 while (isdigit ((unsigned char) *ptr_src))
797 {
798 number = number * 10 + *ptr_src - '0';
799 ptr_src++;
800 }
801
802 /* NOTE: The below is retained for compatibility only.
803 PLEASE DO NOT ADD TO THIS CODE. */
804
805 switch (number)
806 {
807 /* FIXME: These are needed to parse IEEE objects. */
808 /* The following seven case's are here only for compatibility with
809 older binutils (at least IEEE objects from binutils 2.9.1 require
810 them). */
811 case bfd_mach_m68000:
812 case bfd_mach_m68010:
813 case bfd_mach_m68020:
814 case bfd_mach_m68030:
815 case bfd_mach_m68040:
816 case bfd_mach_m68060:
817 case bfd_mach_cpu32:
818 arch = bfd_arch_m68k;
819 break;
820 case 68000:
821 arch = bfd_arch_m68k;
822 number = bfd_mach_m68000;
823 break;
824 case 68010:
825 arch = bfd_arch_m68k;
826 number = bfd_mach_m68010;
827 break;
828 case 68020:
829 arch = bfd_arch_m68k;
830 number = bfd_mach_m68020;
831 break;
832 case 68030:
833 arch = bfd_arch_m68k;
834 number = bfd_mach_m68030;
835 break;
836 case 68040:
837 arch = bfd_arch_m68k;
838 number = bfd_mach_m68040;
839 break;
840 case 68060:
841 arch = bfd_arch_m68k;
842 number = bfd_mach_m68060;
843 break;
844 case 68332:
845 arch = bfd_arch_m68k;
846 number = bfd_mach_cpu32;
847 break;
848
849 case 32000:
850 arch = bfd_arch_we32k;
851 break;
852
853 case 3000:
854 arch = bfd_arch_mips;
855 number = bfd_mach_mips3000;
856 break;
857
858 case 4000:
859 arch = bfd_arch_mips;
860 number = bfd_mach_mips4000;
861 break;
862
863 case 6000:
864 arch = bfd_arch_rs6000;
865 break;
866
867 case 7410:
868 arch = bfd_arch_sh;
869 number = bfd_mach_sh_dsp;
870 break;
871
872 case 7708:
873 arch = bfd_arch_sh;
874 number = bfd_mach_sh3;
875 break;
876
877 case 7729:
878 arch = bfd_arch_sh;
879 number = bfd_mach_sh3_dsp;
880 break;
881
882 case 7750:
883 arch = bfd_arch_sh;
884 number = bfd_mach_sh4;
885 break;
886
887 default:
888 return false;
889 }
890
891 if (arch != info->arch)
892 return false;
893
894 if (number != info->mach)
895 return false;
896
897 return true;
898}
899
900/*
901FUNCTION
902 bfd_get_arch_info
903
904SYNOPSIS
905 const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
906
907DESCRIPTION
908 Return the architecture info struct in @var{abfd}.
909*/
910
911const bfd_arch_info_type *
912bfd_get_arch_info (abfd)
913 bfd *abfd;
914{
915 return abfd->arch_info;
916}
917
918/*
919FUNCTION
920 bfd_lookup_arch
921
922SYNOPSIS
923 const bfd_arch_info_type *bfd_lookup_arch
924 (enum bfd_architecture
925 arch,
926 unsigned long machine);
927
928DESCRIPTION
929 Look for the architecure info structure which matches the
930 arguments @var{arch} and @var{machine}. A machine of 0 matches the
931 machine/architecture structure which marks itself as the
932 default.
933*/
934
935const bfd_arch_info_type *
936bfd_lookup_arch (arch, machine)
937 enum bfd_architecture arch;
938 unsigned long machine;
939{
940 const bfd_arch_info_type * const *app, *ap;
941
942 for (app = bfd_archures_list; *app != NULL; app++)
943 {
944 for (ap = *app; ap != NULL; ap = ap->next)
945 {
946 if (ap->arch == arch
947 && (ap->mach == machine
948 || (machine == 0 && ap->the_default)))
949 return ap;
950 }
951 }
952
953 return NULL;
954}
955
956/*
957FUNCTION
958 bfd_printable_arch_mach
959
960SYNOPSIS
961 const char *bfd_printable_arch_mach
962 (enum bfd_architecture arch, unsigned long machine);
963
964DESCRIPTION
965 Return a printable string representing the architecture and
966 machine type.
967
968 This routine is depreciated.
969*/
970
971const char *
972bfd_printable_arch_mach (arch, machine)
973 enum bfd_architecture arch;
974 unsigned long machine;
975{
976 const bfd_arch_info_type * ap = bfd_lookup_arch (arch, machine);
977
978 if (ap)
979 return ap->printable_name;
980 return "UNKNOWN!";
981}
982
983/*
984FUNCTION
985 bfd_octets_per_byte
986
987SYNOPSIS
988 unsigned int bfd_octets_per_byte(bfd *abfd);
989
990DESCRIPTION
991 Return the number of octets (8-bit quantities) per target byte
992 (minimum addressable unit). In most cases, this will be one, but some
993 DSP targets have 16, 32, or even 48 bits per byte.
994
995*/
996
997unsigned int
998bfd_octets_per_byte (abfd)
999 bfd * abfd;
1000{
1001 return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1002 bfd_get_mach (abfd));
1003}
1004
1005/*
1006FUNCTION
1007 bfd_arch_mach_octets_per_byte
1008
1009SYNOPSIS
1010 unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1011 unsigned long machine);
1012
1013DESCRIPTION
1014 See bfd_octets_per_byte.
1015
1016 This routine is provided for those cases where a bfd * is not
1017 available
1018*/
1019
1020unsigned int
1021bfd_arch_mach_octets_per_byte (arch, mach)
1022 enum bfd_architecture arch;
1023 unsigned long mach;
1024{
1025 const bfd_arch_info_type * ap = bfd_lookup_arch (arch, mach);
1026
1027 if (ap)
1028 return ap->bits_per_byte / 8;
1029 return 1;
1030}
GDB Binutils - Deliverables
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