summaryrefslogtreecommitdiffstats
path: root/bfd/archures.c
blob: 5bc744a6f6d371641bc7e22d979493133e3224ae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
/* BFD library support routines for architectures.
   Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include <ctype.h>

/*

SECTION
	Architectures

	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 architecture information is provided by each architecture package.
	The set of default architectures is selected by the macro
	<<SELECT_ARCHITECTURES>>.  This is normally set up in the
	@file{config/@var{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).

	BFD's idea of an architecture is implemented in	@file{archures.c}.
*/

/*

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?
	Another field indicates which processor within
	the family is in use.  The machine gives a number which
	distinguishes 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 *}
.#define bfd_mach_m68000 1
.#define bfd_mach_m68008 2
.#define bfd_mach_m68010 3
.#define bfd_mach_m68020 4
.#define bfd_mach_m68030 5
.#define bfd_mach_m68040 6
.#define bfd_mach_m68060 7
.#define bfd_mach_cpu32  8
.  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
.#define bfd_mach_i960_jx	 7
.#define bfd_mach_i960_hx        8
.
.  bfd_arch_a29k,      {* AMD 29000 *}
.  bfd_arch_sparc,     {* SPARC *}
.#define bfd_mach_sparc			1
.{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
.#define bfd_mach_sparc_sparclet	2
.#define bfd_mach_sparc_sparclite	3
.#define bfd_mach_sparc_v8plus		4
.#define bfd_mach_sparc_v8plusa		5 {* with ultrasparc add'ns *}
.#define bfd_mach_sparc_sparclite_le	6
.#define bfd_mach_sparc_v9		7
.#define bfd_mach_sparc_v9a		8 {* with ultrasparc add'ns *}
.#define bfd_mach_sparc_v8plusb		9 {* with cheetah add'ns *}
.#define bfd_mach_sparc_v9b		10 {* with cheetah add'ns *}
.{* Nonzero if MACH has the v9 instruction set.  *}
.#define bfd_mach_sparc_v9_p(mach) \
.  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
.   && (mach) != bfd_mach_sparc_sparclite_le)
.  bfd_arch_mips,      {* MIPS Rxxxx *}
.#define bfd_mach_mips3000		3000
.#define bfd_mach_mips3900		3900
.#define bfd_mach_mips4000		4000
.#define bfd_mach_mips4010		4010
.#define bfd_mach_mips4100		4100
.#define bfd_mach_mips4111		4111
.#define bfd_mach_mips4300		4300
.#define bfd_mach_mips4400		4400
.#define bfd_mach_mips4600		4600
.#define bfd_mach_mips4650		4650
.#define bfd_mach_mips5000		5000
.#define bfd_mach_mips6000		6000
.#define bfd_mach_mips8000		8000
.#define bfd_mach_mips10000		10000
.#define bfd_mach_mips16		16
.#define bfd_mach_mips32                32
.#define bfd_mach_mips32_4k             3204113 {* 32, 04, octal 'K' *}
.#define bfd_mach_mips5                 5
.#define bfd_mach_mips64                64
.#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
.  bfd_arch_i386,      {* Intel 386 *}
.#define bfd_mach_i386_i386 0
.#define bfd_mach_i386_i8086 1
.#define bfd_mach_i386_i386_intel_syntax 2
.#define bfd_mach_x86_64 3
.#define bfd_mach_x86_64_intel_syntax 4
.  bfd_arch_we32k,     {* AT&T WE32xxx *}
.  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
.  bfd_arch_i860,      {* Intel 860 *}
.  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
.  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
.#define bfd_mach_h8300s  3
.  bfd_arch_powerpc,   {* PowerPC *}
.#define bfd_mach_ppc		0
.#define bfd_mach_ppc_403	403
.#define bfd_mach_ppc_403gc	4030
.#define bfd_mach_ppc_505	505
.#define bfd_mach_ppc_601	601
.#define bfd_mach_ppc_602	602
.#define bfd_mach_ppc_603	603
.#define bfd_mach_ppc_ec603e	6031
.#define bfd_mach_ppc_604	604
.#define bfd_mach_ppc_620	620
.#define bfd_mach_ppc_630	630
.#define bfd_mach_ppc_750	750
.#define bfd_mach_ppc_860	860
.#define bfd_mach_ppc_a35	35
.#define bfd_mach_ppc_rs64ii	642
.#define bfd_mach_ppc_rs64iii	643
.#define bfd_mach_ppc_7400	7400
.  bfd_arch_rs6000,    {* IBM RS/6000 *}
.#define bfd_mach_rs6k		0
.#define bfd_mach_rs6k_rs1	6001
.#define bfd_mach_rs6k_rsc	6003
.#define bfd_mach_rs6k_rs2	6002
.  bfd_arch_hppa,      {* HP PA RISC *}
.  bfd_arch_d10v,      {* Mitsubishi D10V *}
.#define bfd_mach_d10v		0
.#define bfd_mach_d10v_ts2	2
.#define bfd_mach_d10v_ts3	3
.  bfd_arch_d30v,      {* Mitsubishi D30V *}
.  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
.  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
.  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 *}
.#define bfd_mach_sh            0
.#define bfd_mach_sh2        0x20
.#define bfd_mach_sh_dsp     0x2d
.#define bfd_mach_sh3        0x30
.#define bfd_mach_sh3_dsp    0x3d
.#define bfd_mach_sh3e       0x3e
.#define bfd_mach_sh4        0x40
.  bfd_arch_alpha,     {* Dec Alpha *}
.#define bfd_mach_alpha_ev4  0x10
.#define bfd_mach_alpha_ev5  0x20
.#define bfd_mach_alpha_ev6  0x30
.  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
.#define bfd_mach_arm_2		1
.#define bfd_mach_arm_2a	2
.#define bfd_mach_arm_3		3
.#define bfd_mach_arm_3M 	4
.#define bfd_mach_arm_4 	5
.#define bfd_mach_arm_4T 	6
.#define bfd_mach_arm_5 	7
.#define bfd_mach_arm_5T	8
.#define bfd_mach_arm_5TE	9
.#define bfd_mach_arm_XScale	10
.  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
.  bfd_arch_w65,       {* WDC 65816 *}
.  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
.  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
.  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
.  bfd_arch_v850,      {* NEC V850 *}
.#define bfd_mach_v850          0
.#define bfd_mach_v850e 	'E'
.#define bfd_mach_v850ea	'A'
.  bfd_arch_arc,       {* Argonaut RISC Core *}
.#define bfd_mach_arc_base 0
.  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
.#define bfd_mach_m32r		0 {* backwards compatibility *}
.#define bfd_mach_m32rx		'x'
.  bfd_arch_mn10200,   {* Matsushita MN10200 *}
.  bfd_arch_mn10300,   {* Matsushita MN10300 *}
.#define bfd_mach_mn10300		300
.#define bfd_mach_am33		330
.  bfd_arch_fr30,
.#define bfd_mach_fr30		0x46523330
.  bfd_arch_mcore,
.  bfd_arch_ia64,      {* HP/Intel ia64 *}
.#define bfd_mach_ia64_elf64	0
.#define bfd_mach_ia64_elf32	1
.  bfd_arch_pj,
.  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
.#define bfd_mach_avr1		1
.#define bfd_mach_avr2		2
.#define bfd_mach_avr3		3
.#define bfd_mach_avr4		4
.#define bfd_mach_avr5		5
.  bfd_arch_cris,      {* Axis CRIS *}
.  bfd_arch_last
.  };
*/

/*
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;
.  unsigned long mach;
.  const 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 *));
.
.  const struct bfd_arch_info *next;
.} bfd_arch_info_type;
*/

extern const bfd_arch_info_type bfd_a29k_arch;
extern const bfd_arch_info_type bfd_alpha_arch;
extern const bfd_arch_info_type bfd_arc_arch;
extern const bfd_arch_info_type bfd_arm_arch;
extern const bfd_arch_info_type bfd_cris_arch;
extern const bfd_arch_info_type bfd_d10v_arch;
extern const bfd_arch_info_type bfd_d30v_arch;
extern const bfd_arch_info_type bfd_h8300_arch;
extern const bfd_arch_info_type bfd_h8500_arch;
extern const bfd_arch_info_type bfd_hppa_arch;
extern const bfd_arch_info_type bfd_i370_arch;
extern const bfd_arch_info_type bfd_i386_arch;
extern const bfd_arch_info_type bfd_i860_arch;
extern const bfd_arch_info_type bfd_i960_arch;
extern const bfd_arch_info_type bfd_m32r_arch;
extern const bfd_arch_info_type bfd_m68hc11_arch;
extern const bfd_arch_info_type bfd_m68hc12_arch;
extern const bfd_arch_info_type bfd_m68k_arch;
extern const bfd_arch_info_type bfd_m88k_arch;
extern const bfd_arch_info_type bfd_mips_arch;
extern const bfd_arch_info_type bfd_mn10200_arch;
extern const bfd_arch_info_type bfd_mn10300_arch;
extern const bfd_arch_info_type bfd_powerpc_arch;
extern const bfd_arch_info_type bfd_rs6000_arch;
extern const bfd_arch_info_type bfd_pj_arch;
extern const bfd_arch_info_type bfd_sh_arch;
extern const bfd_arch_info_type bfd_sparc_arch;
extern const bfd_arch_info_type bfd_tic30_arch;
extern const bfd_arch_info_type bfd_tic54x_arch;
extern const bfd_arch_info_type bfd_tic80_arch;
extern const bfd_arch_info_type bfd_vax_arch;
extern const bfd_arch_info_type bfd_we32k_arch;
extern const bfd_arch_info_type bfd_z8k_arch;
extern const bfd_arch_info_type bfd_ns32k_arch;
extern const bfd_arch_info_type bfd_w65_arch;
extern const bfd_arch_info_type bfd_v850_arch;
extern const bfd_arch_info_type bfd_fr30_arch;
extern const bfd_arch_info_type bfd_mcore_arch;
extern const bfd_arch_info_type bfd_avr_arch;
extern const bfd_arch_info_type bfd_ia64_arch;

static const bfd_arch_info_type * const bfd_archures_list[] = {
#ifdef SELECT_ARCHITECTURES
  SELECT_ARCHITECTURES,
#else
  &bfd_a29k_arch,
  &bfd_alpha_arch,
  &bfd_arc_arch,
  &bfd_arm_arch,
  &bfd_cris_arch,
  &bfd_d10v_arch,
  &bfd_d30v_arch,
  &bfd_h8300_arch,
  &bfd_h8500_arch,
  &bfd_hppa_arch,
  &bfd_i370_arch,
  &bfd_i386_arch,
  &bfd_i860_arch,
  &bfd_i960_arch,
  &bfd_m32r_arch,
  &bfd_m68hc11_arch,
  &bfd_m68hc12_arch,
  &bfd_m68k_arch,
  &bfd_m88k_arch,
  &bfd_mips_arch,
  &bfd_mn10200_arch,
  &bfd_mn10300_arch,
  &bfd_powerpc_arch,
  &bfd_rs6000_arch,
  &bfd_sh_arch,
  &bfd_sparc_arch,
  &bfd_tic30_arch,
  &bfd_tic54x_arch,
  &bfd_tic80_arch,
  &bfd_vax_arch,
  &bfd_we32k_arch,
  &bfd_z8k_arch,
  &bfd_ns32k_arch,
  &bfd_w65_arch,
  &bfd_v850_arch,
  &bfd_fr30_arch,
  &bfd_mcore_arch,
  &bfd_avr_arch,
  &bfd_ia64_arch,
#endif
  0
};

/*
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 architecture info structure.

*/

const char *
bfd_printable_name (abfd)
     bfd *abfd;
{
  return abfd->arch_info->printable_name;
}

/*
FUNCTION
	bfd_scan_arch

SYNOPSIS
	const bfd_arch_info_type *bfd_scan_arch(const char *string);

DESCRIPTION
	Figure out if BFD supports any cpu which could be described with
	the name @var{string}.  Return a pointer to an <<arch_info>>
	structure if a machine is found, otherwise NULL.
*/

const bfd_arch_info_type *
bfd_scan_arch (string)
     const char *string;
{
  const bfd_arch_info_type * const *app, *ap;

  /* Look through all the installed architectures.  */
  for (app = bfd_archures_list; *app != NULL; app++)
    {
      for (ap = *app; ap != NULL; ap = ap->next)
	{
	  if (ap->scan (ap, string))
	    return ap;
	}
    }

  return NULL;
}

/*
FUNCTION
	bfd_arch_list

SYNOPSIS
	const char **bfd_arch_list(void);

DESCRIPTION
	Return a freshly malloced NULL-terminated vector of the names
	of all the valid BFD architectures.  Do not modify the names.
*/

const char **
bfd_arch_list ()
{
  int vec_length = 0;
  const char **name_ptr;
  const char **name_list;
  const bfd_arch_info_type * const *app;

  /* Determine the number of architectures.  */
  vec_length = 0;
  for (app = bfd_archures_list; *app != NULL; app++)
    {
      const bfd_arch_info_type *ap;
      for (ap = *app; ap != NULL; ap = ap->next)
	{
	  vec_length++;
	}
    }

  name_list = (const char **)
    bfd_malloc ((vec_length + 1) * sizeof (char **));
  if (name_list == NULL)
    return NULL;

  /* Point the list at each of the names.  */
  name_ptr = name_list;
  for (app = bfd_archures_list; *app != NULL; app++)
    {
      const bfd_arch_info_type *ap;
      for (ap = *app; ap != NULL; ap = ap->next)
	{
	  *name_ptr = ap->printable_name;
	  name_ptr++;
	}
    }
  *name_ptr = NULL;

  return name_list;
}

/*
FUNCTION
	bfd_arch_get_compatible

SYNOPSIS
	const bfd_arch_info_type *bfd_arch_get_compatible(
		const bfd *abfd,
	        const bfd *bbfd);

DESCRIPTION
	Determine whether two BFDs'
	architectures and machine types are compatible.  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 *
bfd_arch_get_compatible (abfd, bbfd)
     const bfd *abfd;
     const bfd *bbfd;
{
  /* If either architecture is unknown, then all we can do is assume
     the user knows what he's doing.  */
  if (abfd->arch_info->arch == bfd_arch_unknown)
    return bbfd->arch_info;
  if (bbfd->arch_info->arch == bfd_arch_unknown)
    return abfd->arch_info;

  /* Otherwise architecture-specific code has to decide.  */
  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 const bfd_arch_info_type bfd_default_arch_struct;
*/

const 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 *abfd, const bfd_arch_info_type *arg);

DESCRIPTION
	Set the architecture info of @var{abfd} to @var{arg}.
*/

void
bfd_set_arch_info (abfd, arg)
     bfd *abfd;
     const 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 BFD @var{abfd}
	to @var{arch} and @var{mach}.  Find the correct
	pointer to a structure and insert it into the <<arch_info>>
	pointer.
*/

boolean
bfd_default_set_arch_mach (abfd, arch, mach)
     bfd *abfd;
     enum bfd_architecture arch;
     unsigned long mach;
{
  const bfd_arch_info_type * const *app, *ap;

  for (app = bfd_archures_list; *app != NULL; app++)
    {
      for (ap = *app; ap != NULL; ap = ap->next)
	{
	  if (ap->arch == arch
	      && (ap->mach == mach
		  || (mach == 0 && ap->the_default)))
	    {
	      abfd->arch_info = ap;
	      return true;
	    }
	}
    }

  abfd->arch_info = &bfd_default_arch_struct;
  bfd_set_error (bfd_error_bad_value);
  return false;
}

/*
FUNCTION
	bfd_get_arch

SYNOPSIS
	enum bfd_architecture bfd_get_arch(bfd *abfd);

DESCRIPTION
	Return the enumerated type which describes the BFD @var{abfd}'s
	architecture.
*/

enum bfd_architecture
bfd_get_arch (abfd)
     bfd *abfd;
{
  return abfd->arch_info->arch;
}

/*
FUNCTION
	bfd_get_mach

SYNOPSIS
	unsigned long bfd_get_mach(bfd *abfd);

DESCRIPTION
	Return the long type which describes the BFD @var{abfd}'s
	machine.
*/

unsigned long
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
	Return the number of bits in one of the BFD @var{abfd}'s
	architecture's bytes.
*/

unsigned int
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
	Return the number of bits in one of the BFD @var{abfd}'s
	architecture's addresses.
*/

unsigned int
bfd_arch_bits_per_address (abfd)
     bfd *abfd;
{
  return abfd->arch_info->bits_per_address;
}

/*
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 *
bfd_default_compatible (a, b)
     const bfd_arch_info_type *a;
     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 *info, const char *string);

DESCRIPTION
	The default function for working out whether this is an
	architecture hit and a machine hit.
*/

boolean
bfd_default_scan (info, string)
     const struct bfd_arch_info *info;
     const char *string;
{
  const char *ptr_src;
  const char *ptr_tst;
  unsigned long number;
  enum bfd_architecture arch;
  const char *printable_name_colon;

  /* Exact match of the architecture name (ARCH_NAME) and also the
     default architecture?  */
  if (strcasecmp (string, info->arch_name) == 0
      && info->the_default)
    return true;

  /* Exact match of the machine name (PRINTABLE_NAME)?  */
  if (strcasecmp (string, info->printable_name) == 0)
    return true;

  /* Given that printable_name contains no colon, attempt to match:
     ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
  printable_name_colon = strchr (info->printable_name, ':');
  if (printable_name_colon == NULL)
    {
      int strlen_arch_name = strlen (info->arch_name);
      if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
	{
	  if (string[strlen_arch_name] == ':')
	    {
	      if (strcasecmp (string + strlen_arch_name + 1,
			      info->printable_name) == 0)
		return true;
	    }
	  else
	    {
	      if (strcasecmp (string + strlen_arch_name,
			      info->printable_name) == 0)
		return true;
	    }
	}
    }

  /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
     Attempt to match: <arch> <mach>?  */
  if (printable_name_colon != NULL)
    {
      int colon_index = printable_name_colon - info->printable_name;
      if (strncasecmp (string, info->printable_name, colon_index) == 0
	  && strcasecmp (string + colon_index,
			 info->printable_name + colon_index + 1) == 0)
	return true;
    }

  /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
     attempt to match just <mach>, it could be ambigious.  This test
     is left until later.  */

  /* NOTE: The below is retained for compatibility only.  Please do
     not add to this code.  */

  /* 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 ((unsigned char) *ptr_src))
    {
      number = number * 10 + *ptr_src - '0';
      ptr_src++;
    }

  /* NOTE: The below is retained for compatibility only.
     PLEASE DO NOT ADD TO THIS CODE.  */

  switch (number)
    {
      /* FIXME: These are needed to parse IEEE objects.  */
      /* The following seven case's are here only for compatibility with
	 older binutils (at least IEEE objects from binutils 2.9.1 require
	 them).  */
    case bfd_mach_m68000:
    case bfd_mach_m68010:
    case bfd_mach_m68020:
    case bfd_mach_m68030:
    case bfd_mach_m68040:
    case bfd_mach_m68060:
    case bfd_mach_cpu32:
      arch = bfd_arch_m68k;
      break;
    case 68000:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68000;
      break;
    case 68010:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68010;
      break;
    case 68020:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68020;
      break;
    case 68030:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68030;
      break;
    case 68040:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68040;
      break;
    case 68060:
      arch = bfd_arch_m68k;
      number = bfd_mach_m68060;
      break;
    case 68332:
      arch = bfd_arch_m68k;
      number = bfd_mach_cpu32;
      break;

    case 32000:
      arch = bfd_arch_we32k;
      break;

    case 3000:
      arch = bfd_arch_mips;
      number = bfd_mach_mips3000;
      break;

    case 4000:
      arch = bfd_arch_mips;
      number = bfd_mach_mips4000;
      break;

    case 6000:
      arch = bfd_arch_rs6000;
      break;

    case 7410:
      arch = bfd_arch_sh;
      number = bfd_mach_sh_dsp;
      break;

    case 7708:
      arch = bfd_arch_sh;
      number = bfd_mach_sh3;
      break;

    case 7729:
      arch = bfd_arch_sh;
      number = bfd_mach_sh3_dsp;
      break;

    case 7750:
      arch = bfd_arch_sh;
      number = bfd_mach_sh4;
      break;

    default:
      return false;
    }

  if (arch != info->arch)
    return false;

  if (number != info->mach)
    return false;

  return true;
}

/*
FUNCTION
	bfd_get_arch_info

SYNOPSIS
	const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);

DESCRIPTION
	Return the architecture info struct in @var{abfd}.
*/

const bfd_arch_info_type *
bfd_get_arch_info (abfd)
     bfd *abfd;
{
  return abfd->arch_info;
}

/*
FUNCTION
	bfd_lookup_arch

SYNOPSIS
	const bfd_arch_info_type *bfd_lookup_arch
		(enum bfd_architecture
		arch,
		unsigned long machine);

DESCRIPTION
	Look for the architecure info structure which matches the
	arguments @var{arch} and @var{machine}. A machine of 0 matches the
	machine/architecture structure which marks itself as the
	default.
*/

const bfd_arch_info_type *
bfd_lookup_arch (arch, machine)
     enum bfd_architecture arch;
     unsigned long machine;
{
  const bfd_arch_info_type * const *app, *ap;

  for (app = bfd_archures_list; *app != NULL; app++)
    {
      for (ap = *app; ap != NULL; ap = ap->next)
	{
	  if (ap->arch == arch
	      && (ap->mach == machine
		  || (machine == 0 && ap->the_default)))
	    return ap;
	}
    }

  return 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.

	This routine is depreciated.
*/

const char *
bfd_printable_arch_mach (arch, machine)
     enum bfd_architecture arch;
     unsigned long machine;
{
  const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);

  if (ap)
    return ap->printable_name;
  return "UNKNOWN!";
}

/*
FUNCTION
	bfd_octets_per_byte

SYNOPSIS
	unsigned int bfd_octets_per_byte(bfd *abfd);

DESCRIPTION
	Return the number of octets (8-bit quantities) per target byte
        (minimum addressable unit).  In most cases, this will be one, but some
        DSP targets have 16, 32, or even 48 bits per byte.
*/

unsigned int
bfd_octets_per_byte (abfd)
     bfd *abfd;
{
  return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
					bfd_get_mach (abfd));
}

/*
FUNCTION
	bfd_arch_mach_octets_per_byte

SYNOPSIS
	unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
                                                   unsigned long machine);

DESCRIPTION
	See bfd_octets_per_byte.

        This routine is provided for those cases where a bfd * is not
        available
*/

unsigned int
bfd_arch_mach_octets_per_byte (arch, mach)
     enum bfd_architecture arch;
     unsigned long mach;
{
  const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);

  if (ap)
    return ap->bits_per_byte / 8;
  return 1;
}
OpenPOWER on IntegriCloud