OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [tags/] [start/] [gdb-5.0/] [bfd/] [archures.c] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 104 markom
/* 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
 
6
This file is part of BFD, the Binary File Descriptor library.
7
 
8
This program is free software; you can redistribute it and/or modify
9
it under the terms of the GNU General Public License as published by
10
the Free Software Foundation; either version 2 of the License, or
11
(at your option) any later version.
12
 
13
This program is distributed in the hope that it will be useful,
14
but WITHOUT ANY WARRANTY; without even the implied warranty of
15
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
GNU General Public License for more details.
17
 
18
You should have received a copy of the GNU General Public License
19
along with this program; if not, write to the Free Software
20
Foundation, 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
 
29
SECTION
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
 
57
SUBSECTION
58
        bfd_architecture
59
 
60
DESCRIPTION
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 *}
138
.  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
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 *}
149
.  bfd_arch_rs6000,    {* IBM RS/6000 *}
150
.  bfd_arch_hppa,      {* HP PA RISC *}
151
.  bfd_arch_d10v,      {* Mitsubishi D10V *}
152
.#define bfd_mach_d10v          0
153
.#define bfd_mach_d10v_ts2      2
154
.#define bfd_mach_d10v_ts3      3
155
.  bfd_arch_d30v,      {* Mitsubishi D30V *}
156
.  bfd_arch_z8k,       {* Zilog Z8000 *}
157
.#define bfd_mach_z8001         1
158
.#define bfd_mach_z8002         2
159
.  bfd_arch_h8500,     {* Hitachi H8/500 *}
160
.  bfd_arch_sh,        {* Hitachi SH *}
161
.#define bfd_mach_sh            0
162
.#define bfd_mach_sh2        0x20
163
.#define bfd_mach_sh_dsp     0x2d
164
.#define bfd_mach_sh3        0x30
165
.#define bfd_mach_sh3_dsp    0x3d
166
.#define bfd_mach_sh3e       0x3e
167
.#define bfd_mach_sh4        0x40
168
.  bfd_arch_alpha,     {* Dec Alpha *}
169
.#define bfd_mach_alpha_ev4  0x10
170
.#define bfd_mach_alpha_ev5  0x20
171
.#define bfd_mach_alpha_ev6  0x30
172
.  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
173
.#define bfd_mach_arm_2         1
174
.#define bfd_mach_arm_2a        2
175
.#define bfd_mach_arm_3         3
176
.#define bfd_mach_arm_3M        4
177
.#define bfd_mach_arm_4         5
178
.#define bfd_mach_arm_4T        6
179
.#define bfd_mach_arm_5         7
180
.#define bfd_mach_arm_5T        8
181
.  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
182
.  bfd_arch_w65,       {* WDC 65816 *}
183
.  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
184
.  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
185
.  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
186
.  bfd_arch_v850,      {* NEC V850 *}
187
.#define bfd_mach_v850          0
188
.#define bfd_mach_v850e         'E'
189
.#define bfd_mach_v850ea        'A'
190
.  bfd_arch_arc,       {* Argonaut RISC Core *}
191
.#define bfd_mach_arc_base 0
192
.  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
193
.#define bfd_mach_m32r          0 {* backwards compatibility *}
194
.#define bfd_mach_m32rx         'x'
195
.  bfd_arch_mn10200,   {* Matsushita MN10200 *}
196
.  bfd_arch_mn10300,   {* Matsushita MN10300 *}
197
.#define bfd_mach_mn10300               300
198
.#define bfd_mach_am33          330
199
.  bfd_arch_fr30,
200
.#define bfd_mach_fr30          0x46523330
201
.  bfd_arch_mcore,
202
.  bfd_arch_pj,
203
.  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
204
.#define bfd_mach_avr1          1
205
.#define bfd_mach_avr2          2
206
.#define bfd_mach_avr3          3
207
.#define bfd_mach_avr4          4
208
.  bfd_arch_last
209
.  };
210
 
211
 
212
*/
213
 
214
/*
215
 
216
SUBSECTION
217
        bfd_arch_info
218
 
219
DESCRIPTION
220
        This structure contains information on architectures for use
221
        within BFD.
222
 
223
.
224
.typedef struct bfd_arch_info
225
.{
226
.  int bits_per_word;
227
.  int bits_per_address;
228
.  int bits_per_byte;
229
.  enum bfd_architecture arch;
230
.  unsigned long mach;
231
.  const char *arch_name;
232
.  const char *printable_name;
233
.  unsigned int section_align_power;
234
. {* true if this is the default machine for the architecture *}
235
.  boolean the_default;
236
.  const struct bfd_arch_info * (*compatible)
237
.       PARAMS ((const struct bfd_arch_info *a,
238
.                const struct bfd_arch_info *b));
239
.
240
.  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
241
.
242
.  const struct bfd_arch_info *next;
243
.} bfd_arch_info_type;
244
*/
245
 
246
extern const bfd_arch_info_type bfd_or32_arch;
247
extern const bfd_arch_info_type bfd_or16_arch;
248
extern const bfd_arch_info_type bfd_a29k_arch;
249
extern const bfd_arch_info_type bfd_alpha_arch;
250
extern const bfd_arch_info_type bfd_arc_arch;
251
extern const bfd_arch_info_type bfd_arm_arch;
252
extern const bfd_arch_info_type bfd_d10v_arch;
253
extern const bfd_arch_info_type bfd_d30v_arch;
254
extern const bfd_arch_info_type bfd_h8300_arch;
255
extern const bfd_arch_info_type bfd_h8500_arch;
256
extern const bfd_arch_info_type bfd_hppa_arch;
257
extern const bfd_arch_info_type bfd_i370_arch;
258
extern const bfd_arch_info_type bfd_i386_arch;
259
extern const bfd_arch_info_type bfd_i860_arch;
260
extern const bfd_arch_info_type bfd_i960_arch;
261
extern const bfd_arch_info_type bfd_m32r_arch;
262
extern const bfd_arch_info_type bfd_m68k_arch;
263
extern const bfd_arch_info_type bfd_m88k_arch;
264
extern const bfd_arch_info_type bfd_mips_arch;
265
extern const bfd_arch_info_type bfd_mn10200_arch;
266
extern const bfd_arch_info_type bfd_mn10300_arch;
267
extern const bfd_arch_info_type bfd_powerpc_arch;
268
extern const bfd_arch_info_type bfd_rs6000_arch;
269
extern const bfd_arch_info_type bfd_pj_arch;
270
extern const bfd_arch_info_type bfd_sh_arch;
271
extern const bfd_arch_info_type bfd_sparc_arch;
272
extern const bfd_arch_info_type bfd_tic30_arch;
273
extern const bfd_arch_info_type bfd_tic54x_arch;
274
extern const bfd_arch_info_type bfd_tic80_arch;
275
extern const bfd_arch_info_type bfd_vax_arch;
276
extern const bfd_arch_info_type bfd_we32k_arch;
277
extern const bfd_arch_info_type bfd_z8k_arch;
278
extern const bfd_arch_info_type bfd_ns32k_arch;
279
extern const bfd_arch_info_type bfd_w65_arch;
280
extern const bfd_arch_info_type bfd_v850_arch;
281
extern const bfd_arch_info_type bfd_fr30_arch;
282
extern const bfd_arch_info_type bfd_mcore_arch;
283
extern const bfd_arch_info_type bfd_avr_arch;
284
 
285
static const bfd_arch_info_type * const bfd_archures_list[] =
286
{
287
#ifdef SELECT_ARCHITECTURES
288
  SELECT_ARCHITECTURES,
289
#else 
290
  &bfd_or32_arch,
291
  &bfd_or16_arch,
292
  &bfd_a29k_arch,
293
  &bfd_alpha_arch,
294
  &bfd_arc_arch,
295
  &bfd_arm_arch,
296
  &bfd_d10v_arch,
297
  &bfd_d30v_arch,
298
  &bfd_h8300_arch,
299
  &bfd_h8500_arch,
300
  &bfd_hppa_arch,
301
  &bfd_i370_arch,
302
  &bfd_i386_arch,
303
  &bfd_i860_arch,
304
  &bfd_i960_arch,
305
  &bfd_m32r_arch,
306
  &bfd_m68k_arch,
307
  &bfd_m88k_arch,
308
  &bfd_mips_arch,
309
  &bfd_mn10200_arch,
310
  &bfd_mn10300_arch,
311
  &bfd_powerpc_arch,
312
  &bfd_rs6000_arch,
313
  &bfd_sh_arch,
314
  &bfd_sparc_arch,
315
  &bfd_tic30_arch,
316
  &bfd_tic54x_arch,
317
  &bfd_tic80_arch,
318
  &bfd_vax_arch,
319
  &bfd_we32k_arch,
320
  &bfd_z8k_arch,
321
  &bfd_ns32k_arch,
322
  &bfd_w65_arch,
323
  &bfd_v850_arch,
324
  &bfd_fr30_arch,
325
  &bfd_mcore_arch,
326
  &bfd_avr_arch,
327
#endif
328
 
329
};
330
 
331
/*
332
FUNCTION
333
        bfd_printable_name
334
 
335
SYNOPSIS
336
        const char *bfd_printable_name(bfd *abfd);
337
 
338
DESCRIPTION
339
        Return a printable string representing the architecture and machine
340
        from the pointer to the architecture info structure.
341
 
342
*/
343
 
344
const char *
345
bfd_printable_name (abfd)
346
     bfd *abfd;
347
{
348
  return abfd->arch_info->printable_name;
349
}
350
 
351
 
352
 
353
/*
354
FUNCTION
355
        bfd_scan_arch
356
 
357
SYNOPSIS
358
        const bfd_arch_info_type *bfd_scan_arch(const char *string);
359
 
360
DESCRIPTION
361
        Figure out if BFD supports any cpu which could be described with
362
        the name @var{string}.  Return a pointer to an <<arch_info>>
363
        structure if a machine is found, otherwise NULL.
364
 
365
*/
366
 
367
const bfd_arch_info_type *
368
bfd_scan_arch (string)
369
     const char *string;
370
{
371
  const bfd_arch_info_type * const *app, *ap;
372
 
373
  /* Look through all the installed architectures */
374
  for (app = bfd_archures_list; *app != NULL; app++)
375
    {
376
      for (ap = *app; ap != NULL; ap = ap->next)
377
        {
378
          if (ap->scan (ap, string))
379
            return ap;
380
        }
381
    }
382
 
383
  return NULL;
384
}
385
 
386
 
387
 
388
/*
389
FUNCTION
390
        bfd_arch_list
391
 
392
SYNOPSIS
393
        const char **bfd_arch_list(void);
394
 
395
DESCRIPTION
396
        Return a freshly malloced NULL-terminated vector of the names
397
        of all the valid BFD architectures.  Do not modify the names.
398
 
399
*/
400
 
401
const char **
402
bfd_arch_list ()
403
{
404
  int vec_length = 0;
405
  const char **name_ptr;
406
  const char **name_list;
407
  const bfd_arch_info_type * const *app;
408
 
409
  /* Determine the number of architectures */
410
  vec_length = 0;
411
  for (app = bfd_archures_list; *app != NULL; app++)
412
    {
413
      const bfd_arch_info_type *ap;
414
      for (ap = *app; ap != NULL; ap = ap->next)
415
        {
416
          vec_length++;
417
        }
418
    }
419
 
420
  name_list = (CONST char **)
421
    bfd_malloc ((vec_length + 1) * sizeof (char **));
422
  if (name_list == NULL)
423
    return NULL;
424
 
425
  /* Point the list at each of the names */
426
  name_ptr = name_list;
427
  for (app = bfd_archures_list; *app != NULL; app++)
428
    {
429
      const bfd_arch_info_type *ap;
430
      for (ap = *app; ap != NULL; ap = ap->next)
431
        {
432
          *name_ptr = ap->printable_name;
433
          name_ptr++;
434
        }
435
    }
436
  *name_ptr = NULL;
437
 
438
  return name_list;
439
}
440
 
441
 
442
 
443
/*
444
FUNCTION
445
        bfd_arch_get_compatible
446
 
447
SYNOPSIS
448
        const bfd_arch_info_type *bfd_arch_get_compatible(
449
                const bfd *abfd,
450
                const bfd *bbfd);
451
 
452
DESCRIPTION
453
        Determine whether two BFDs'
454
        architectures and machine types are compatible.  Calculates
455
        the lowest common denominator between the two architectures
456
        and machine types implied by the BFDs and returns a pointer to
457
        an <<arch_info>> structure describing the compatible machine.
458
*/
459
 
460
const bfd_arch_info_type *
461
bfd_arch_get_compatible (abfd, bbfd)
462
     const bfd *abfd;
463
     const bfd *bbfd;
464
{
465
  /* If either architecture is unknown, then all we can do is assume
466
     the user knows what he's doing.  */
467
  if (abfd->arch_info->arch == bfd_arch_unknown)
468
        return bbfd->arch_info;
469
  if (bbfd->arch_info->arch == bfd_arch_unknown)
470
        return abfd->arch_info;
471
 
472
  /* Otherwise architecture-specific code has to decide.  */
473
  return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
474
}
475
 
476
 
477
/*
478
INTERNAL_DEFINITION
479
        bfd_default_arch_struct
480
 
481
DESCRIPTION
482
        The <<bfd_default_arch_struct>> is an item of
483
        <<bfd_arch_info_type>> which has been initialized to a fairly
484
        generic state.  A BFD starts life by pointing to this
485
        structure, until the correct back end has determined the real
486
        architecture of the file.
487
 
488
.extern const bfd_arch_info_type bfd_default_arch_struct;
489
 
490
*/
491
 
492
const bfd_arch_info_type bfd_default_arch_struct =
493
{
494
    32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
495
    bfd_default_compatible,
496
    bfd_default_scan,
497
    0,
498
};
499
 
500
/*
501
FUNCTION
502
        bfd_set_arch_info
503
 
504
SYNOPSIS
505
        void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
506
 
507
DESCRIPTION
508
        Set the architecture info of @var{abfd} to @var{arg}.
509
*/
510
 
511
void
512
bfd_set_arch_info (abfd, arg)
513
     bfd *abfd;
514
     const bfd_arch_info_type *arg;
515
{
516
  abfd->arch_info = arg;
517
}
518
 
519
/*
520
INTERNAL_FUNCTION
521
        bfd_default_set_arch_mach
522
 
523
SYNOPSIS
524
        boolean bfd_default_set_arch_mach(bfd *abfd,
525
                enum bfd_architecture arch,
526
                unsigned long mach);
527
 
528
DESCRIPTION
529
        Set the architecture and machine type in BFD @var{abfd}
530
        to @var{arch} and @var{mach}.  Find the correct
531
        pointer to a structure and insert it into the <<arch_info>>
532
        pointer.
533
*/
534
 
535
boolean
536
bfd_default_set_arch_mach (abfd, arch, mach)
537
     bfd *abfd;
538
     enum bfd_architecture arch;
539
     unsigned long mach;
540
{
541
  const bfd_arch_info_type * const *app, *ap;
542
 
543
  for (app = bfd_archures_list; *app != NULL; app++)
544
    {
545
      for (ap = *app; ap != NULL; ap = ap->next)
546
        {
547
          if (ap->arch == arch
548
              && (ap->mach == mach
549
                  || (mach == 0 && ap->the_default)))
550
            {
551
              abfd->arch_info = ap;
552
              return true;
553
            }
554
        }
555
    }
556
 
557
  abfd->arch_info = &bfd_default_arch_struct;
558
  bfd_set_error (bfd_error_bad_value);
559
  return false;
560
}
561
 
562
 
563
/*
564
FUNCTION
565
        bfd_get_arch
566
 
567
SYNOPSIS
568
        enum bfd_architecture bfd_get_arch(bfd *abfd);
569
 
570
DESCRIPTION
571
        Return the enumerated type which describes the BFD @var{abfd}'s
572
        architecture.
573
 
574
*/
575
 
576
enum bfd_architecture
577
bfd_get_arch (abfd)
578
     bfd *abfd;
579
{
580
    return abfd->arch_info->arch;
581
}
582
 
583
/*
584
FUNCTION
585
        bfd_get_mach
586
 
587
SYNOPSIS
588
        unsigned long bfd_get_mach(bfd *abfd);
589
 
590
DESCRIPTION
591
        Return the long type which describes the BFD @var{abfd}'s
592
        machine.
593
*/
594
 
595
unsigned long
596
bfd_get_mach (abfd)
597
     bfd *abfd;
598
{
599
    return abfd->arch_info->mach;
600
}
601
 
602
/*
603
FUNCTION
604
        bfd_arch_bits_per_byte
605
 
606
SYNOPSIS
607
        unsigned int bfd_arch_bits_per_byte(bfd *abfd);
608
 
609
DESCRIPTION
610
        Return the number of bits in one of the BFD @var{abfd}'s
611
        architecture's bytes.
612
 
613
*/
614
 
615
unsigned int
616
bfd_arch_bits_per_byte (abfd)
617
     bfd *abfd;
618
{
619
  return abfd->arch_info->bits_per_byte;
620
}
621
 
622
/*
623
FUNCTION
624
        bfd_arch_bits_per_address
625
 
626
SYNOPSIS
627
        unsigned int bfd_arch_bits_per_address(bfd *abfd);
628
 
629
DESCRIPTION
630
        Return the number of bits in one of the BFD @var{abfd}'s
631
        architecture's addresses.
632
*/
633
 
634
unsigned int
635
bfd_arch_bits_per_address (abfd)
636
     bfd *abfd;
637
{
638
  return abfd->arch_info->bits_per_address;
639
}
640
 
641
 
642
/*
643
INTERNAL_FUNCTION
644
        bfd_default_compatible
645
 
646
SYNOPSIS
647
        const bfd_arch_info_type *bfd_default_compatible
648
        (const bfd_arch_info_type *a,
649
        const bfd_arch_info_type *b);
650
 
651
DESCRIPTION
652
        The default function for testing for compatibility.
653
*/
654
 
655
const bfd_arch_info_type *
656
bfd_default_compatible (a,b)
657
     const bfd_arch_info_type *a;
658
     const bfd_arch_info_type *b;
659
{
660
  if (a->arch != b->arch)
661
    return NULL;
662
 
663
  if (a->mach > b->mach)
664
    return a;
665
 
666
  if (b->mach > a->mach)
667
    return b;
668
 
669
  return a;
670
}
671
 
672
 
673
/*
674
INTERNAL_FUNCTION
675
        bfd_default_scan
676
 
677
SYNOPSIS
678
        boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
679
 
680
DESCRIPTION
681
        The default function for working out whether this is an
682
        architecture hit and a machine hit.
683
*/
684
 
685
boolean
686
bfd_default_scan (info, string)
687
     const struct bfd_arch_info *info;
688
     const char *string;
689
{
690
  const char *ptr_src;
691
  const char *ptr_tst;
692
  unsigned long number;
693
  enum bfd_architecture arch;
694
  const char *printable_name_colon;
695
 
696
  /* Exact match of the architecture name (ARCH_NAME) and also the
697
     default architecture? */
698
  if (strcasecmp (string, info->arch_name) == 0
699
      && info->the_default)
700
    return true;
701
 
702
  /* Exact match of the machine name (PRINTABLE_NAME)? */
703
  if (strcasecmp (string, info->printable_name) == 0)
704
    return true;
705
 
706
  /* Given that printable_name contains no colon, attempt to match:
707
     ARCH_NAME [ ":" ] PRINTABLE_NAME? */
708
  printable_name_colon = strchr (info->printable_name, ':');
709
  if (printable_name_colon == NULL)
710
    {
711
      int strlen_arch_name = strlen (info->arch_name);
712
      if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
713
        {
714
          if (string[strlen_arch_name] == ':')
715
            {
716
              if (strcasecmp (string + strlen_arch_name + 1,
717
                              info->printable_name) == 0)
718
                return true;
719
            }
720
          else
721
            {
722
              if (strcasecmp (string + strlen_arch_name,
723
                              info->printable_name) == 0)
724
                return true;
725
            }
726
        }
727
    }
728
 
729
  /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
730
     Attempt to match: <arch> <mach>? */
731
  if (printable_name_colon != NULL)
732
    {
733
      int colon_index = printable_name_colon - info->printable_name;
734
      if (strncasecmp (string, info->printable_name, colon_index) == 0
735
          && strcasecmp (string + colon_index,
736
                         info->printable_name + colon_index + 1) == 0)
737
        return true;
738
    }
739
 
740
  /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
741
     attempt to match just <mach>, it could be ambigious.  This test
742
     is left until later. */
743
 
744
  /* NOTE: The below is retained for compatibility only. Please do not
745
     add to this code */
746
 
747
  /* See how much of the supplied string matches with the
748
     architecture, eg the string m68k:68020 would match the 68k entry
749
     up to the :, then we get left with the machine number */
750
 
751
  for (ptr_src = string, ptr_tst = info->arch_name;
752
       *ptr_src && *ptr_tst;
753
       ptr_src++, ptr_tst++)
754
    {
755
      if (*ptr_src != *ptr_tst) break;
756
    }
757
 
758
  /* Chewed up as much of the architecture as will match, skip any
759
     colons */
760
  if (*ptr_src == ':')
761
    ptr_src++;
762
 
763
  if (*ptr_src == 0)
764
    {
765
      /* nothing more, then only keep this one if it is the default
766
         machine for this architecture */
767
      return info->the_default;
768
    }
769
 
770
  number = 0;
771
  while (isdigit ((unsigned char) *ptr_src))
772
    {
773
      number = number * 10 + *ptr_src  - '0';
774
      ptr_src++;
775
    }
776
 
777
  /* NOTE: The below is retained for compatibility only.
778
     PLEASE DO NOT ADD TO THIS CODE. */
779
 
780
  switch (number)
781
    {
782
      /* FIXME: These are needed to parse IEEE objects.  */
783
    case 68000:
784
      arch = bfd_arch_m68k;
785
      number = bfd_mach_m68000;
786
      break;
787
    case 68010:
788
      arch = bfd_arch_m68k;
789
      number = bfd_mach_m68010;
790
      break;
791
    case 68020:
792
      arch = bfd_arch_m68k;
793
      number = bfd_mach_m68020;
794
      break;
795
    case 68030:
796
      arch = bfd_arch_m68k;
797
      number = bfd_mach_m68030;
798
      break;
799
    case 68040:
800
      arch = bfd_arch_m68k;
801
      number = bfd_mach_m68040;
802
      break;
803
    case 68060:
804
      arch = bfd_arch_m68k;
805
      number = bfd_mach_m68060;
806
      break;
807
    case 68332:
808
      arch = bfd_arch_m68k;
809
      number = bfd_mach_cpu32;
810
      break;
811
 
812
    case 32000:
813
      arch = bfd_arch_we32k;
814
      break;
815
 
816
    case 3000:
817
      arch = bfd_arch_mips;
818
      number = bfd_mach_mips3000;
819
      break;
820
 
821
    case 4000:
822
      arch = bfd_arch_mips;
823
      number = bfd_mach_mips4000;
824
      break;
825
 
826
    case 6000:
827
      arch = bfd_arch_rs6000;
828
      break;
829
 
830
    case 7410:
831
      arch = bfd_arch_sh;
832
      number = bfd_mach_sh_dsp;
833
      break;
834
 
835
    case 7708:
836
      arch = bfd_arch_sh;
837
      number = bfd_mach_sh3;
838
      break;
839
 
840
    case 7729:
841
      arch = bfd_arch_sh;
842
      number = bfd_mach_sh3_dsp;
843
      break;
844
 
845
    case 7750:
846
      arch = bfd_arch_sh;
847
      number = bfd_mach_sh4;
848
      break;
849
 
850
    default:
851
      return false;
852
    }
853
 
854
  if (arch != info->arch)
855
    return false;
856
 
857
  if (number != info->mach)
858
    return false;
859
 
860
  return true;
861
}
862
 
863
 
864
/*
865
FUNCTION
866
        bfd_get_arch_info
867
 
868
SYNOPSIS
869
        const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
870
 
871
DESCRIPTION
872
        Return the architecture info struct in @var{abfd}.
873
*/
874
 
875
const bfd_arch_info_type *
876
bfd_get_arch_info (abfd)
877
     bfd *abfd;
878
{
879
  return abfd->arch_info;
880
}
881
 
882
 
883
/*
884
FUNCTION
885
        bfd_lookup_arch
886
 
887
SYNOPSIS
888
        const bfd_arch_info_type *bfd_lookup_arch
889
                (enum bfd_architecture
890
                arch,
891
                unsigned long machine);
892
 
893
DESCRIPTION
894
        Look for the architecure info structure which matches the
895
        arguments @var{arch} and @var{machine}. A machine of 0 matches the
896
        machine/architecture structure which marks itself as the
897
        default.
898
*/
899
 
900
const bfd_arch_info_type *
901
bfd_lookup_arch (arch, machine)
902
     enum bfd_architecture arch;
903
     unsigned long machine;
904
{
905
  const bfd_arch_info_type * const *app, *ap;
906
 
907
  for (app = bfd_archures_list; *app != NULL; app++)
908
    {
909
      for (ap = *app; ap != NULL; ap = ap->next)
910
        {
911
          if (ap->arch == arch
912
              && (ap->mach == machine
913
                  || (machine == 0 && ap->the_default)))
914
            return ap;
915
        }
916
    }
917
 
918
  return NULL;
919
}
920
 
921
 
922
/*
923
FUNCTION
924
        bfd_printable_arch_mach
925
 
926
SYNOPSIS
927
        const char *bfd_printable_arch_mach
928
                (enum bfd_architecture arch, unsigned long machine);
929
 
930
DESCRIPTION
931
        Return a printable string representing the architecture and
932
        machine type.
933
 
934
        This routine is depreciated.
935
*/
936
 
937
const char *
938
bfd_printable_arch_mach (arch, machine)
939
     enum bfd_architecture arch;
940
     unsigned long machine;
941
{
942
    const bfd_arch_info_type * ap = bfd_lookup_arch (arch, machine);
943
 
944
    if (ap)
945
      return ap->printable_name;
946
    return "UNKNOWN!";
947
}
948
 
949
/*
950
FUNCTION
951
        bfd_octets_per_byte
952
 
953
SYNOPSIS
954
        unsigned int bfd_octets_per_byte(bfd *abfd);
955
 
956
DESCRIPTION
957
        Return the number of octets (8-bit quantities) per target byte
958
        (minimum addressable unit).  In most cases, this will be one, but some
959
        DSP targets have 16, 32, or even 48 bits per byte.
960
 
961
*/
962
 
963
unsigned int
964
bfd_octets_per_byte (abfd)
965
     bfd * abfd;
966
{
967
    return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
968
                                          bfd_get_mach (abfd));
969
}
970
 
971
/*
972
FUNCTION
973
        bfd_arch_mach_octets_per_byte
974
 
975
SYNOPSIS
976
        unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
977
                                                   unsigned long machine);
978
 
979
DESCRIPTION
980
        See bfd_octets_per_byte.
981
 
982
        This routine is provided for those cases where a bfd * is not
983
        available
984
*/
985
 
986
unsigned int
987
bfd_arch_mach_octets_per_byte (arch, mach)
988
    enum bfd_architecture arch;
989
    unsigned long mach;
990
{
991
    const bfd_arch_info_type * ap = bfd_lookup_arch (arch, mach);
992
 
993
    if (ap)
994
      return ap->bits_per_byte / 8;
995
    return 1;
996
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.