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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [bfd/] [elf32-msp430.c] - Blame information for rev 816

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1 38 julius
/*  MSP430-specific support for 32-bit ELF
2
    Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
3
    Free Software Foundation, Inc.
4
    Contributed by Dmitry Diky <diwil@mail.ru>
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
21
    MA 02110-1301, USA.  */
22
 
23
#include "sysdep.h"
24
#include "bfd.h"
25
#include "libiberty.h"
26
#include "libbfd.h"
27
#include "elf-bfd.h"
28
#include "elf/msp430.h"
29
 
30
/* Use RELA instead of REL.  */
31
#undef USE_REL
32
 
33
static reloc_howto_type elf_msp430_howto_table[] =
34
{
35
  HOWTO (R_MSP430_NONE,         /* type */
36
         0,                      /* rightshift */
37
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
38
         32,                    /* bitsize */
39
         FALSE,                 /* pc_relative */
40
         0,                      /* bitpos */
41
         complain_overflow_bitfield,/* complain_on_overflow */
42
         bfd_elf_generic_reloc, /* special_function */
43
         "R_MSP430_NONE",       /* name */
44
         FALSE,                 /* partial_inplace */
45
         0,                      /* src_mask */
46
         0,                      /* dst_mask */
47
         FALSE),                /* pcrel_offset */
48
 
49
  HOWTO (R_MSP430_32,           /* type */
50
         0,                      /* rightshift */
51
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
52
         32,                    /* bitsize */
53
         FALSE,                 /* pc_relative */
54
         0,                      /* bitpos */
55
         complain_overflow_bitfield,/* complain_on_overflow */
56
         bfd_elf_generic_reloc, /* special_function */
57
         "R_MSP430_32",         /* name */
58
         FALSE,                 /* partial_inplace */
59
         0xffffffff,            /* src_mask */
60
         0xffffffff,            /* dst_mask */
61
         FALSE),                /* pcrel_offset */
62
 
63
  /* A 13 bit PC relative relocation.  */
64
  HOWTO (R_MSP430_10_PCREL,     /* type */
65
         1,                     /* rightshift */
66
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
67
         10,                    /* bitsize */
68
         TRUE,                  /* pc_relative */
69
         0,                      /* bitpos */
70
         complain_overflow_bitfield,/* complain_on_overflow */
71
         bfd_elf_generic_reloc, /* special_function */
72
         "R_MSP430_13_PCREL",   /* name */
73
         FALSE,                 /* partial_inplace */
74
         0xfff,                 /* src_mask */
75
         0xfff,                 /* dst_mask */
76
         TRUE),                 /* pcrel_offset */
77
 
78
  /* A 16 bit absolute relocation.  */
79
  HOWTO (R_MSP430_16,           /* type */
80
         0,                      /* rightshift */
81
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
82
         16,                    /* bitsize */
83
         FALSE,                 /* pc_relative */
84
         0,                      /* bitpos */
85
         complain_overflow_dont,/* complain_on_overflow */
86
         bfd_elf_generic_reloc, /* special_function */
87
         "R_MSP430_16",         /* name */
88
         FALSE,                 /* partial_inplace */
89
         0,                      /* src_mask */
90
         0xffff,                /* dst_mask */
91
         FALSE),                /* pcrel_offset */
92
 
93
  /* A 16 bit absolute relocation for command address.  */
94
  HOWTO (R_MSP430_16_PCREL,     /* type */
95
         1,                     /* rightshift */
96
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
97
         16,                    /* bitsize */
98
         TRUE,                  /* pc_relative */
99
         0,                      /* bitpos */
100
         complain_overflow_dont,/* complain_on_overflow */
101
         bfd_elf_generic_reloc, /* special_function */
102
         "R_MSP430_16_PCREL",   /* name */
103
         FALSE,                 /* partial_inplace */
104
         0,                      /* src_mask */
105
         0xffff,                /* dst_mask */
106
         TRUE),                 /* pcrel_offset */
107
 
108
  /* A 16 bit absolute relocation, byte operations.  */
109
  HOWTO (R_MSP430_16_BYTE,      /* type */
110
         0,                      /* rightshift */
111
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
112
         16,                    /* bitsize */
113
         FALSE,                 /* pc_relative */
114
         0,                      /* bitpos */
115
         complain_overflow_dont,/* complain_on_overflow */
116
         bfd_elf_generic_reloc, /* special_function */
117
         "R_MSP430_16_BYTE",    /* name */
118
         FALSE,                 /* partial_inplace */
119
         0xffff,                /* src_mask */
120
         0xffff,                /* dst_mask */
121
         FALSE),                /* pcrel_offset */
122
 
123
  /* A 16 bit absolute relocation for command address.  */
124
  HOWTO (R_MSP430_16_PCREL_BYTE,/* type */
125
         1,                     /* rightshift */
126
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
127
         16,                    /* bitsize */
128
         TRUE,                  /* pc_relative */
129
         0,                      /* bitpos */
130
         complain_overflow_dont,/* complain_on_overflow */
131
         bfd_elf_generic_reloc, /* special_function */
132
         "R_MSP430_16_PCREL_BYTE",/* name */
133
         FALSE,                 /* partial_inplace */
134
         0xffff,                /* src_mask */
135
         0xffff,                /* dst_mask */
136
         TRUE),                 /* pcrel_offset */
137
 
138
  /* A 13 bit PC relative relocation for complicated polymorphs.  */
139
  HOWTO (R_MSP430_2X_PCREL,     /* type */
140
         1,                     /* rightshift */
141
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
142
         10,                    /* bitsize */
143
         TRUE,                  /* pc_relative */
144
         0,                      /* bitpos */
145
         complain_overflow_bitfield,/* complain_on_overflow */
146
         bfd_elf_generic_reloc, /* special_function */
147
         "R_MSP430_2X_PCREL",   /* name */
148
         FALSE,                 /* partial_inplace */
149
         0xfff,                 /* src_mask */
150
         0xfff,                 /* dst_mask */
151
         TRUE),                 /* pcrel_offset */
152
 
153
  /* A 16 bit relaxable relocation for command address.  */
154
  HOWTO (R_MSP430_RL_PCREL,     /* type */
155
         1,                     /* rightshift */
156
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
157
         16,                    /* bitsize */
158
         TRUE,                  /* pc_relative */
159
         0,                      /* bitpos */
160
         complain_overflow_dont,/* complain_on_overflow */
161
         bfd_elf_generic_reloc, /* special_function */
162
         "R_MSP430_RL_PCREL",   /* name */
163
         FALSE,                 /* partial_inplace */
164
         0,                      /* src_mask */
165
         0xffff,                /* dst_mask */
166
         TRUE)                  /* pcrel_offset */
167
};
168
 
169
/* Map BFD reloc types to MSP430 ELF reloc types.  */
170
 
171
struct msp430_reloc_map
172
{
173
  bfd_reloc_code_real_type bfd_reloc_val;
174
  unsigned int elf_reloc_val;
175
};
176
 
177
static const struct msp430_reloc_map msp430_reloc_map[] =
178
  {
179
    {BFD_RELOC_NONE,                 R_MSP430_NONE},
180
    {BFD_RELOC_32,                   R_MSP430_32},
181
    {BFD_RELOC_MSP430_10_PCREL,      R_MSP430_10_PCREL},
182
    {BFD_RELOC_16,                   R_MSP430_16_BYTE},
183
    {BFD_RELOC_MSP430_16_PCREL,      R_MSP430_16_PCREL},
184
    {BFD_RELOC_MSP430_16,            R_MSP430_16},
185
    {BFD_RELOC_MSP430_16_PCREL_BYTE, R_MSP430_16_PCREL_BYTE},
186
    {BFD_RELOC_MSP430_16_BYTE,       R_MSP430_16_BYTE},
187
    {BFD_RELOC_MSP430_2X_PCREL,      R_MSP430_2X_PCREL},
188
    {BFD_RELOC_MSP430_RL_PCREL,      R_MSP430_RL_PCREL}
189
  };
190
 
191
static reloc_howto_type *
192
bfd_elf32_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
193
                                 bfd_reloc_code_real_type code)
194
{
195
  unsigned int i;
196
 
197
  for (i = 0; i < ARRAY_SIZE (msp430_reloc_map); i++)
198
    if (msp430_reloc_map[i].bfd_reloc_val == code)
199
      return &elf_msp430_howto_table[msp430_reloc_map[i].elf_reloc_val];
200
 
201
  return NULL;
202
}
203
 
204
static reloc_howto_type *
205
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
206
                                 const char *r_name)
207
{
208
  unsigned int i;
209
 
210
  for (i = 0;
211
       i < (sizeof (elf_msp430_howto_table)
212
            / sizeof (elf_msp430_howto_table[0]));
213
       i++)
214
    if (elf_msp430_howto_table[i].name != NULL
215
        && strcasecmp (elf_msp430_howto_table[i].name, r_name) == 0)
216
      return &elf_msp430_howto_table[i];
217
 
218
  return NULL;
219
}
220
 
221
/* Set the howto pointer for an MSP430 ELF reloc.  */
222
 
223
static void
224
msp430_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
225
                           arelent * cache_ptr,
226
                           Elf_Internal_Rela * dst)
227
{
228
  unsigned int r_type;
229
 
230
  r_type = ELF32_R_TYPE (dst->r_info);
231
  BFD_ASSERT (r_type < (unsigned int) R_MSP430_max);
232
  cache_ptr->howto = &elf_msp430_howto_table[r_type];
233
}
234
 
235
/* Look through the relocs for a section during the first phase.
236
   Since we don't do .gots or .plts, we just need to consider the
237
   virtual table relocs for gc.  */
238
 
239
static bfd_boolean
240
elf32_msp430_check_relocs (bfd * abfd, struct bfd_link_info * info,
241
                           asection * sec, const Elf_Internal_Rela * relocs)
242
{
243
  Elf_Internal_Shdr *symtab_hdr;
244
  struct elf_link_hash_entry **sym_hashes;
245
  const Elf_Internal_Rela *rel;
246
  const Elf_Internal_Rela *rel_end;
247
 
248
  if (info->relocatable)
249
    return TRUE;
250
 
251
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
252
  sym_hashes = elf_sym_hashes (abfd);
253
 
254
  rel_end = relocs + sec->reloc_count;
255
  for (rel = relocs; rel < rel_end; rel++)
256
    {
257
      struct elf_link_hash_entry *h;
258
      unsigned long r_symndx;
259
 
260
      r_symndx = ELF32_R_SYM (rel->r_info);
261
      if (r_symndx < symtab_hdr->sh_info)
262
        h = NULL;
263
      else
264
        {
265
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
266
          while (h->root.type == bfd_link_hash_indirect
267
                 || h->root.type == bfd_link_hash_warning)
268
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
269
        }
270
    }
271
 
272
  return TRUE;
273
}
274
 
275
/* Perform a single relocation.  By default we use the standard BFD
276
   routines, but a few relocs, we have to do them ourselves.  */
277
 
278
static bfd_reloc_status_type
279
msp430_final_link_relocate (reloc_howto_type * howto, bfd * input_bfd,
280
                            asection * input_section, bfd_byte * contents,
281
                            Elf_Internal_Rela * rel, bfd_vma relocation)
282
{
283
  bfd_reloc_status_type r = bfd_reloc_ok;
284
  bfd_vma x;
285
  bfd_signed_vma srel;
286
 
287
  switch (howto->type)
288
    {
289
    case R_MSP430_10_PCREL:
290
      contents += rel->r_offset;
291
      srel = (bfd_signed_vma) relocation;
292
      srel += rel->r_addend;
293
      srel -= rel->r_offset;
294
      srel -= 2;                /* Branch instructions add 2 to the PC...  */
295
      srel -= (input_section->output_section->vma +
296
               input_section->output_offset);
297
 
298
      if (srel & 1)
299
        return bfd_reloc_outofrange;
300
 
301
      /* MSP430 addresses commands as words.  */
302
      srel >>= 1;
303
 
304
      /* Check for an overflow.  */
305
      if (srel < -512 || srel > 511)
306
        return bfd_reloc_overflow;
307
 
308
      x = bfd_get_16 (input_bfd, contents);
309
      x = (x & 0xfc00) | (srel & 0x3ff);
310
      bfd_put_16 (input_bfd, x, contents);
311
      break;
312
 
313
    case R_MSP430_2X_PCREL:
314
      contents += rel->r_offset;
315
      srel = (bfd_signed_vma) relocation;
316
      srel += rel->r_addend;
317
      srel -= rel->r_offset;
318
      srel -= 2;                /* Branch instructions add 2 to the PC...  */
319
      srel -= (input_section->output_section->vma +
320
               input_section->output_offset);
321
 
322
      if (srel & 1)
323
        return bfd_reloc_outofrange;
324
 
325
      /* MSP430 addresses commands as words.  */
326
      srel >>= 1;
327
 
328
      /* Check for an overflow.  */
329
      if (srel < -512 || srel > 511)
330
        return bfd_reloc_overflow;
331
 
332
      x = bfd_get_16 (input_bfd, contents);
333
      x = (x & 0xfc00) | (srel & 0x3ff);
334
      bfd_put_16 (input_bfd, x, contents);
335
      /* Handle second jump instruction.  */
336
      x = bfd_get_16 (input_bfd, contents - 2);
337
      srel += 1;
338
      x = (x & 0xfc00) | (srel & 0x3ff);
339
      bfd_put_16 (input_bfd, x, contents - 2);
340
      break;
341
 
342
    case R_MSP430_16_PCREL:
343
    case R_MSP430_RL_PCREL:
344
      contents += rel->r_offset;
345
      srel = (bfd_signed_vma) relocation;
346
      srel += rel->r_addend;
347
      srel -= rel->r_offset;
348
      /* Only branch instructions add 2 to the PC...  */
349
      srel -= (input_section->output_section->vma +
350
               input_section->output_offset);
351
 
352
      if (srel & 1)
353
        return bfd_reloc_outofrange;
354
 
355
      bfd_put_16 (input_bfd, srel & 0xffff, contents);
356
      break;
357
 
358
    case R_MSP430_16_PCREL_BYTE:
359
      contents += rel->r_offset;
360
      srel = (bfd_signed_vma) relocation;
361
      srel += rel->r_addend;
362
      srel -= rel->r_offset;
363
      /* Only branch instructions add 2 to the PC...  */
364
      srel -= (input_section->output_section->vma +
365
               input_section->output_offset);
366
 
367
      bfd_put_16 (input_bfd, srel & 0xffff, contents);
368
      break;
369
 
370
    case R_MSP430_16_BYTE:
371
      contents += rel->r_offset;
372
      srel = (bfd_signed_vma) relocation;
373
      srel += rel->r_addend;
374
      bfd_put_16 (input_bfd, srel & 0xffff, contents);
375
      break;
376
 
377
    case R_MSP430_16:
378
      contents += rel->r_offset;
379
      srel = (bfd_signed_vma) relocation;
380
      srel += rel->r_addend;
381
 
382
      if (srel & 1)
383
        return bfd_reloc_notsupported;
384
 
385
      bfd_put_16 (input_bfd, srel & 0xffff, contents);
386
      break;
387
 
388
    default:
389
      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
390
                                    contents, rel->r_offset,
391
                                    relocation, rel->r_addend);
392
    }
393
 
394
  return r;
395
}
396
 
397
/* Relocate an MSP430 ELF section.  */
398
 
399
static bfd_boolean
400
elf32_msp430_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED,
401
                               struct bfd_link_info * info,
402
                               bfd * input_bfd,
403
                               asection * input_section,
404
                               bfd_byte * contents,
405
                               Elf_Internal_Rela * relocs,
406
                               Elf_Internal_Sym * local_syms,
407
                               asection ** local_sections)
408
{
409
  Elf_Internal_Shdr *symtab_hdr;
410
  struct elf_link_hash_entry **sym_hashes;
411
  Elf_Internal_Rela *rel;
412
  Elf_Internal_Rela *relend;
413
 
414
  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
415
  sym_hashes = elf_sym_hashes (input_bfd);
416
  relend = relocs + input_section->reloc_count;
417
 
418
  for (rel = relocs; rel < relend; rel++)
419
    {
420
      reloc_howto_type *howto;
421
      unsigned long r_symndx;
422
      Elf_Internal_Sym *sym;
423
      asection *sec;
424
      struct elf_link_hash_entry *h;
425
      bfd_vma relocation;
426
      bfd_reloc_status_type r;
427
      const char *name = NULL;
428
      int r_type;
429
 
430
      r_type = ELF32_R_TYPE (rel->r_info);
431
      r_symndx = ELF32_R_SYM (rel->r_info);
432
      howto = elf_msp430_howto_table + ELF32_R_TYPE (rel->r_info);
433
      h = NULL;
434
      sym = NULL;
435
      sec = NULL;
436
 
437
      if (r_symndx < symtab_hdr->sh_info)
438
        {
439
          sym = local_syms + r_symndx;
440
          sec = local_sections[r_symndx];
441
          relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
442
 
443
          name = bfd_elf_string_from_elf_section
444
              (input_bfd, symtab_hdr->sh_link, sym->st_name);
445
          name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
446
        }
447
      else
448
        {
449
          bfd_boolean unresolved_reloc, warned;
450
 
451
          RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
452
                                   r_symndx, symtab_hdr, sym_hashes,
453
                                   h, sec, relocation,
454
                                   unresolved_reloc, warned);
455
        }
456
 
457
      if (sec != NULL && elf_discarded_section (sec))
458
        {
459
          /* For relocs against symbols from removed linkonce sections,
460
             or sections discarded by a linker script, we just want the
461
             section contents zeroed.  Avoid any special processing.  */
462
          _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
463
          rel->r_info = 0;
464
          rel->r_addend = 0;
465
          continue;
466
        }
467
 
468
      if (info->relocatable)
469
        continue;
470
 
471
      r = msp430_final_link_relocate (howto, input_bfd, input_section,
472
                                      contents, rel, relocation);
473
 
474
      if (r != bfd_reloc_ok)
475
        {
476
          const char *msg = (const char *) NULL;
477
 
478
          switch (r)
479
            {
480
            case bfd_reloc_overflow:
481
              r = info->callbacks->reloc_overflow
482
                  (info, (h ? &h->root : NULL), name, howto->name,
483
                   (bfd_vma) 0, input_bfd, input_section,
484
                   rel->r_offset);
485
              break;
486
 
487
            case bfd_reloc_undefined:
488
              r = info->callbacks->undefined_symbol
489
                  (info, name, input_bfd, input_section, rel->r_offset, TRUE);
490
              break;
491
 
492
            case bfd_reloc_outofrange:
493
              msg = _("internal error: out of range error");
494
              break;
495
 
496
            case bfd_reloc_notsupported:
497
              msg = _("internal error: unsupported relocation error");
498
              break;
499
 
500
            case bfd_reloc_dangerous:
501
              msg = _("internal error: dangerous relocation");
502
              break;
503
 
504
            default:
505
              msg = _("internal error: unknown error");
506
              break;
507
            }
508
 
509
          if (msg)
510
            r = info->callbacks->warning
511
                (info, msg, name, input_bfd, input_section, rel->r_offset);
512
 
513
          if (!r)
514
            return FALSE;
515
        }
516
 
517
    }
518
 
519
  return TRUE;
520
}
521
 
522
/* The final processing done just before writing out a MSP430 ELF object
523
   file.  This gets the MSP430 architecture right based on the machine
524
   number.  */
525
 
526
static void
527
bfd_elf_msp430_final_write_processing (bfd * abfd,
528
                                       bfd_boolean linker ATTRIBUTE_UNUSED)
529
{
530
  unsigned long val;
531
 
532
  switch (bfd_get_mach (abfd))
533
    {
534
    default:
535
    case bfd_mach_msp110:
536
      val = E_MSP430_MACH_MSP430x11x1;
537
      break;
538
 
539
    case bfd_mach_msp11:
540
      val = E_MSP430_MACH_MSP430x11;
541
      break;
542
 
543
    case bfd_mach_msp12:
544
      val = E_MSP430_MACH_MSP430x12;
545
      break;
546
 
547
    case bfd_mach_msp13:
548
      val = E_MSP430_MACH_MSP430x13;
549
      break;
550
 
551
    case bfd_mach_msp14:
552
      val = E_MSP430_MACH_MSP430x14;
553
      break;
554
 
555
    case bfd_mach_msp15:
556
      val = E_MSP430_MACH_MSP430x15;
557
      break;
558
 
559
    case bfd_mach_msp16:
560
      val = E_MSP430_MACH_MSP430x16;
561
      break;
562
 
563
    case bfd_mach_msp31:
564
      val = E_MSP430_MACH_MSP430x31;
565
      break;
566
 
567
    case bfd_mach_msp32:
568
      val = E_MSP430_MACH_MSP430x32;
569
      break;
570
 
571
    case bfd_mach_msp33:
572
      val = E_MSP430_MACH_MSP430x33;
573
      break;
574
 
575
    case bfd_mach_msp41:
576
      val = E_MSP430_MACH_MSP430x41;
577
      break;
578
 
579
    case bfd_mach_msp42:
580
      val = E_MSP430_MACH_MSP430x42;
581
      break;
582
 
583
    case bfd_mach_msp43:
584
      val = E_MSP430_MACH_MSP430x43;
585
      break;
586
 
587
    case bfd_mach_msp44:
588
      val = E_MSP430_MACH_MSP430x44;
589
      break;
590
    }
591
 
592
  elf_elfheader (abfd)->e_machine = EM_MSP430;
593
  elf_elfheader (abfd)->e_flags &= ~EF_MSP430_MACH;
594
  elf_elfheader (abfd)->e_flags |= val;
595
}
596
 
597
/* Set the right machine number.  */
598
 
599
static bfd_boolean
600
elf32_msp430_object_p (bfd * abfd)
601
{
602
  int e_set = bfd_mach_msp14;
603
 
604
  if (elf_elfheader (abfd)->e_machine == EM_MSP430
605
      || elf_elfheader (abfd)->e_machine == EM_MSP430_OLD)
606
    {
607
      int e_mach = elf_elfheader (abfd)->e_flags & EF_MSP430_MACH;
608
 
609
      switch (e_mach)
610
        {
611
        default:
612
        case E_MSP430_MACH_MSP430x11:
613
          e_set = bfd_mach_msp11;
614
          break;
615
 
616
        case E_MSP430_MACH_MSP430x11x1:
617
          e_set = bfd_mach_msp110;
618
          break;
619
 
620
        case E_MSP430_MACH_MSP430x12:
621
          e_set = bfd_mach_msp12;
622
          break;
623
 
624
        case E_MSP430_MACH_MSP430x13:
625
          e_set = bfd_mach_msp13;
626
          break;
627
 
628
        case E_MSP430_MACH_MSP430x14:
629
          e_set = bfd_mach_msp14;
630
          break;
631
 
632
        case E_MSP430_MACH_MSP430x15:
633
          e_set = bfd_mach_msp15;
634
          break;
635
 
636
        case E_MSP430_MACH_MSP430x16:
637
          e_set = bfd_mach_msp16;
638
          break;
639
 
640
        case E_MSP430_MACH_MSP430x31:
641
          e_set = bfd_mach_msp31;
642
          break;
643
 
644
        case E_MSP430_MACH_MSP430x32:
645
          e_set = bfd_mach_msp32;
646
          break;
647
 
648
        case E_MSP430_MACH_MSP430x33:
649
          e_set = bfd_mach_msp33;
650
          break;
651
 
652
        case E_MSP430_MACH_MSP430x41:
653
          e_set = bfd_mach_msp41;
654
          break;
655
 
656
        case E_MSP430_MACH_MSP430x42:
657
          e_set = bfd_mach_msp42;
658
          break;
659
 
660
        case E_MSP430_MACH_MSP430x43:
661
          e_set = bfd_mach_msp43;
662
          break;
663
 
664
        case E_MSP430_MACH_MSP430x44:
665
          e_set = bfd_mach_msp44;
666
          break;
667
        }
668
    }
669
 
670
  return bfd_default_set_arch_mach (abfd, bfd_arch_msp430, e_set);
671
}
672
 
673
/* These functions handle relaxing for the msp430.
674
   Relaxation required only in two cases:
675
    - Bad hand coding like jumps from one section to another or
676
      from file to file.
677
    - Sibling calls. This will affect onlu 'jump label' polymorph. Without
678
      relaxing this enlarges code by 2 bytes. Sibcalls implemented but
679
      do not work in gcc's port by the reason I do not know.
680
   Anyway, if a relaxation required, user should pass -relax option to the
681
   linker.
682
 
683
   There are quite a few relaxing opportunities available on the msp430:
684
 
685
   ================================================================
686
 
687
   1. 3 words -> 1 word
688
 
689
   eq      ==      jeq label                    jne +4; br lab
690
   ne      !=      jne label                    jeq +4; br lab
691
   lt      <       jl  label                    jge +4; br lab
692
   ltu     <       jlo label                    lhs +4; br lab
693
   ge      >=      jge label                    jl  +4; br lab
694
   geu     >=      jhs label                    jlo +4; br lab
695
 
696
   2. 4 words -> 1 word
697
 
698
   ltn     <       jn                      jn  +2; jmp +4; br lab
699
 
700
   3. 4 words -> 2 words
701
 
702
   gt      >       jeq +2; jge label       jeq +6; jl  +4; br label
703
   gtu     >       jeq +2; jhs label       jeq +6; jlo +4; br label
704
 
705
   4. 4 words -> 2 words and 2 labels
706
 
707
   leu     <=      jeq label; jlo label    jeq +2; jhs +4; br label
708
   le      <=      jeq label; jl  label    jeq +2; jge +4; br label
709
   =================================================================
710
 
711
   codemap for first cases is (labels masked ):
712
              eq:       0x2002,0x4010,0x0000 -> 0x2400
713
              ne:       0x2402,0x4010,0x0000 -> 0x2000
714
              lt:       0x3402,0x4010,0x0000 -> 0x3800
715
              ltu:      0x2c02,0x4010,0x0000 -> 0x2800
716
              ge:       0x3802,0x4010,0x0000 -> 0x3400
717
              geu:      0x2802,0x4010,0x0000 -> 0x2c00
718
 
719
  second case:
720
              ltn:      0x3001,0x3c02,0x4010,0x0000 -> 0x3000
721
 
722
  third case:
723
              gt:       0x2403,0x3802,0x4010,0x0000 -> 0x2401,0x3400
724
              gtu:      0x2403,0x2802,0x4010,0x0000 -> 0x2401,0x2c00
725
 
726
  fourth case:
727
              leu:      0x2401,0x2c02,0x4010,0x0000 -> 0x2400,0x2800
728
              le:       0x2401,0x3402,0x4010,0x0000 -> 0x2400,0x3800
729
 
730
  Unspecified case :)
731
              jump:     0x4010,0x0000 -> 0x3c00.  */
732
 
733
#define NUMB_RELAX_CODES        12
734
static struct rcodes_s
735
{
736
  int f0, f1;                   /* From code.  */
737
  int t0, t1;                   /* To code.  */
738
  int labels;                   /* Position of labels: 1 - one label at first
739
                                   word, 2 - one at second word, 3 - two
740
                                   labels at both.  */
741
  int cdx;                      /* Words to match.  */
742
  int bs;                       /* Shrink bytes.  */
743
  int off;                      /* Offset from old label for new code.  */
744
  int ncl;                      /* New code length.  */
745
} rcode[] =
746
{/*                               lab,cdx,bs,off,ncl */
747
  { 0x0000, 0x0000, 0x3c00, 0x0000, 1, 0, 2, 2,   2},    /* jump */
748
  { 0x0000, 0x2002, 0x2400, 0x0000, 1, 1, 4, 4,  2},    /* eq */
749
  { 0x0000, 0x2402, 0x2000, 0x0000, 1, 1, 4, 4,  2},    /* ne */
750
  { 0x0000, 0x3402, 0x3800, 0x0000, 1, 1, 4, 4,  2},    /* lt */
751
  { 0x0000, 0x2c02, 0x2800, 0x0000, 1, 1, 4, 4,  2},    /* ltu */
752
  { 0x0000, 0x3802, 0x3400, 0x0000, 1, 1, 4, 4,  2},    /* ge */
753
  { 0x0000, 0x2802, 0x2c00, 0x0000, 1, 1, 4, 4,  2},    /* geu */
754
  { 0x3001, 0x3c02, 0x3000, 0x0000, 1, 2, 6, 6,  2},    /* ltn */
755
  { 0x2403, 0x3802, 0x2401, 0x3400, 2, 2, 4, 6,  4},    /* gt */
756
  { 0x2403, 0x2802, 0x2401, 0x2c00, 2, 2, 4, 6,  4},    /* gtu */
757
  { 0x2401, 0x2c02, 0x2400, 0x2800, 3, 2, 4, 6,  4},    /* leu , 2 labels */
758
  { 0x2401, 0x2c02, 0x2400, 0x2800, 3, 2, 4, 6,  4},    /* le  , 2 labels */
759
  { 0,       0,       0,       0,       0, 0, 0, 0,  0}
760
};
761
 
762
/* Return TRUE if a symbol exists at the given address.  */
763
 
764
static bfd_boolean
765
msp430_elf_symbol_address_p (bfd * abfd,
766
                             asection * sec,
767
                             Elf_Internal_Sym * isym,
768
                             bfd_vma addr)
769
{
770
  Elf_Internal_Shdr *symtab_hdr;
771
  unsigned int sec_shndx;
772
  Elf_Internal_Sym *isymend;
773
  struct elf_link_hash_entry **sym_hashes;
774
  struct elf_link_hash_entry **end_hashes;
775
  unsigned int symcount;
776
 
777
  sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
778
 
779
  /* Examine all the local symbols.  */
780
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
781
  for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
782
    if (isym->st_shndx == sec_shndx && isym->st_value == addr)
783
      return TRUE;
784
 
785
  symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
786
              - symtab_hdr->sh_info);
787
  sym_hashes = elf_sym_hashes (abfd);
788
  end_hashes = sym_hashes + symcount;
789
  for (; sym_hashes < end_hashes; sym_hashes++)
790
    {
791
      struct elf_link_hash_entry *sym_hash = *sym_hashes;
792
 
793
      if ((sym_hash->root.type == bfd_link_hash_defined
794
           || sym_hash->root.type == bfd_link_hash_defweak)
795
          && sym_hash->root.u.def.section == sec
796
          && sym_hash->root.u.def.value == addr)
797
        return TRUE;
798
    }
799
 
800
  return FALSE;
801
}
802
 
803
/* Adjust all local symbols defined as '.section + 0xXXXX' (.section has sec_shndx)
804
    referenced from current and other sections */
805
static bfd_boolean
806
msp430_elf_relax_adjust_locals(bfd * abfd, asection * sec, bfd_vma addr,
807
    int count, unsigned int sec_shndx, bfd_vma toaddr)
808
{
809
  Elf_Internal_Shdr *symtab_hdr;
810
  Elf_Internal_Rela *irel;
811
  Elf_Internal_Rela *irelend;
812
  Elf_Internal_Sym *isym;
813
 
814
  irel = elf_section_data (sec)->relocs;
815
  irelend = irel + sec->reloc_count;
816
  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
817
  isym = (Elf_Internal_Sym *) symtab_hdr->contents;
818
 
819
  for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
820
    {
821
      int sidx = ELF32_R_SYM(irel->r_info);
822
      Elf_Internal_Sym *lsym = isym + sidx;
823
 
824
      /* Adjust symbols referenced by .sec+0xXX */
825
      if (irel->r_addend > addr && irel->r_addend < toaddr
826
          && lsym->st_shndx == sec_shndx)
827
        irel->r_addend -= count;
828
    }
829
 
830
  return TRUE;
831
}
832
 
833
/* Delete some bytes from a section while relaxing.  */
834
 
835
static bfd_boolean
836
msp430_elf_relax_delete_bytes (bfd * abfd, asection * sec, bfd_vma addr,
837
                               int count)
838
{
839
  Elf_Internal_Shdr *symtab_hdr;
840
  unsigned int sec_shndx;
841
  bfd_byte *contents;
842
  Elf_Internal_Rela *irel;
843
  Elf_Internal_Rela *irelend;
844
  Elf_Internal_Rela *irelalign;
845
  bfd_vma toaddr;
846
  Elf_Internal_Sym *isym;
847
  Elf_Internal_Sym *isymend;
848
  struct elf_link_hash_entry **sym_hashes;
849
  struct elf_link_hash_entry **end_hashes;
850
  unsigned int symcount;
851
  asection *p;
852
 
853
  sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
854
 
855
  contents = elf_section_data (sec)->this_hdr.contents;
856
 
857
  /* The deletion must stop at the next ALIGN reloc for an aligment
858
     power larger than the number of bytes we are deleting.  */
859
 
860
  irelalign = NULL;
861
  toaddr = sec->size;
862
 
863
  irel = elf_section_data (sec)->relocs;
864
  irelend = irel + sec->reloc_count;
865
 
866
  /* Actually delete the bytes.  */
867
  memmove (contents + addr, contents + addr + count,
868
           (size_t) (toaddr - addr - count));
869
  sec->size -= count;
870
 
871
  /* Adjust all the relocs.  */
872
  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
873
  isym = (Elf_Internal_Sym *) symtab_hdr->contents;
874
  for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
875
    {
876
      /* Get the new reloc address.  */
877
      if ((irel->r_offset > addr && irel->r_offset < toaddr))
878
        irel->r_offset -= count;
879
    }
880
 
881
  for (p = abfd->sections; p != NULL; p = p->next)
882
    msp430_elf_relax_adjust_locals(abfd,p,addr,count,sec_shndx,toaddr);
883
 
884
  /* Adjust the local symbols defined in this section.  */
885
  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
886
  isym = (Elf_Internal_Sym *) symtab_hdr->contents;
887
  for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
888
    if (isym->st_shndx == sec_shndx
889
        && isym->st_value > addr && isym->st_value < toaddr)
890
      isym->st_value -= count;
891
 
892
  /* Now adjust the global symbols defined in this section.  */
893
  symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
894
              - symtab_hdr->sh_info);
895
  sym_hashes = elf_sym_hashes (abfd);
896
  end_hashes = sym_hashes + symcount;
897
  for (; sym_hashes < end_hashes; sym_hashes++)
898
    {
899
      struct elf_link_hash_entry *sym_hash = *sym_hashes;
900
 
901
      if ((sym_hash->root.type == bfd_link_hash_defined
902
           || sym_hash->root.type == bfd_link_hash_defweak)
903
          && sym_hash->root.u.def.section == sec
904
          && sym_hash->root.u.def.value > addr
905
          && sym_hash->root.u.def.value < toaddr)
906
        sym_hash->root.u.def.value -= count;
907
    }
908
 
909
  return TRUE;
910
}
911
 
912
 
913
static bfd_boolean
914
msp430_elf_relax_section (bfd * abfd, asection * sec,
915
                          struct bfd_link_info * link_info,
916
                          bfd_boolean * again)
917
{
918
  Elf_Internal_Shdr * symtab_hdr;
919
  Elf_Internal_Rela * internal_relocs;
920
  Elf_Internal_Rela * irel;
921
  Elf_Internal_Rela * irelend;
922
  bfd_byte *          contents = NULL;
923
  Elf_Internal_Sym *  isymbuf = NULL;
924
 
925
  /* Assume nothing changes.  */
926
  *again = FALSE;
927
 
928
  /* We don't have to do anything for a relocatable link, if
929
     this section does not have relocs, or if this is not a
930
     code section.  */
931
  if (link_info->relocatable
932
      || (sec->flags & SEC_RELOC) == 0
933
      || sec->reloc_count == 0 || (sec->flags & SEC_CODE) == 0)
934
    return TRUE;
935
 
936
  symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
937
 
938
  /* Get a copy of the native relocations.  */
939
  internal_relocs =
940
    _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, link_info->keep_memory);
941
  if (internal_relocs == NULL)
942
    goto error_return;
943
 
944
  /* Walk through them looking for relaxing opportunities.  */
945
  irelend = internal_relocs + sec->reloc_count;
946
  for (irel = internal_relocs; irel < irelend; irel++)
947
    {
948
      bfd_vma symval;
949
 
950
      /* If this isn't something that can be relaxed, then ignore
951
         this reloc.  */
952
      if (ELF32_R_TYPE (irel->r_info) != (int) R_MSP430_RL_PCREL)
953
        continue;
954
 
955
      /* Get the section contents if we haven't done so already.  */
956
      if (contents == NULL)
957
        {
958
          /* Get cached copy if it exists.  */
959
          if (elf_section_data (sec)->this_hdr.contents != NULL)
960
            contents = elf_section_data (sec)->this_hdr.contents;
961
          else if (! bfd_malloc_and_get_section (abfd, sec, &contents))
962
            goto error_return;
963
        }
964
 
965
      /* Read this BFD's local symbols if we haven't done so already.  */
966
      if (isymbuf == NULL && symtab_hdr->sh_info != 0)
967
        {
968
          isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
969
          if (isymbuf == NULL)
970
            isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
971
                                            symtab_hdr->sh_info, 0,
972
                                            NULL, NULL, NULL);
973
          if (isymbuf == NULL)
974
            goto error_return;
975
        }
976
 
977
      /* Get the value of the symbol referred to by the reloc.  */
978
      if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
979
        {
980
          /* A local symbol.  */
981
          Elf_Internal_Sym *isym;
982
          asection *sym_sec;
983
 
984
          isym = isymbuf + ELF32_R_SYM (irel->r_info);
985
          if (isym->st_shndx == SHN_UNDEF)
986
            sym_sec = bfd_und_section_ptr;
987
          else if (isym->st_shndx == SHN_ABS)
988
            sym_sec = bfd_abs_section_ptr;
989
          else if (isym->st_shndx == SHN_COMMON)
990
            sym_sec = bfd_com_section_ptr;
991
          else
992
            sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
993
          symval = (isym->st_value
994
                    + sym_sec->output_section->vma + sym_sec->output_offset);
995
        }
996
      else
997
        {
998
          unsigned long indx;
999
          struct elf_link_hash_entry *h;
1000
 
1001
          /* An external symbol.  */
1002
          indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1003
          h = elf_sym_hashes (abfd)[indx];
1004
          BFD_ASSERT (h != NULL);
1005
 
1006
          if (h->root.type != bfd_link_hash_defined
1007
              && h->root.type != bfd_link_hash_defweak)
1008
            /* This appears to be a reference to an undefined
1009
               symbol.  Just ignore it--it will be caught by the
1010
               regular reloc processing.  */
1011
            continue;
1012
 
1013
          symval = (h->root.u.def.value
1014
                    + h->root.u.def.section->output_section->vma
1015
                    + h->root.u.def.section->output_offset);
1016
        }
1017
 
1018
      /* For simplicity of coding, we are going to modify the section
1019
         contents, the section relocs, and the BFD symbol table.  We
1020
         must tell the rest of the code not to free up this
1021
         information.  It would be possible to instead create a table
1022
         of changes which have to be made, as is done in coff-mips.c;
1023
         that would be more work, but would require less memory when
1024
         the linker is run.  */
1025
 
1026
      /* Try to turn a 16bit pc-relative branch into a 10bit pc-relative
1027
         branch.  */
1028
      /* Paranoia? paranoia...  */
1029
      if (ELF32_R_TYPE (irel->r_info) == (int) R_MSP430_RL_PCREL)
1030
        {
1031
          bfd_vma value = symval;
1032
 
1033
          /* Deal with pc-relative gunk.  */
1034
          value -= (sec->output_section->vma + sec->output_offset);
1035
          value -= irel->r_offset;
1036
          value += irel->r_addend;
1037
 
1038
          /* See if the value will fit in 10 bits, note the high value is
1039
             1016 as the target will be two bytes closer if we are
1040
             able to relax. */
1041
          if ((long) value < 1016 && (long) value > -1016)
1042
            {
1043
              int code0 = 0, code1 = 0, code2 = 0;
1044
              int i;
1045
              struct rcodes_s *rx;
1046
 
1047
              /* Get the opcode.  */
1048
              if (irel->r_offset >= 6)
1049
                code0 = bfd_get_16 (abfd, contents + irel->r_offset - 6);
1050
 
1051
              if (irel->r_offset >= 4)
1052
                code1 = bfd_get_16 (abfd, contents + irel->r_offset - 4);
1053
 
1054
              code2 = bfd_get_16 (abfd, contents + irel->r_offset - 2);
1055
 
1056
              if (code2 != 0x4010)
1057
                continue;
1058
 
1059
              /* Check r4 and r3.  */
1060
              for (i = NUMB_RELAX_CODES - 1; i >= 0; i--)
1061
                {
1062
                  rx = &rcode[i];
1063
                  if (rx->cdx == 2 && rx->f0 == code0 && rx->f1 == code1)
1064
                    break;
1065
                  else if (rx->cdx == 1 && rx->f1 == code1)
1066
                    break;
1067
                  else if (rx->cdx == 0) /* This is an unconditional jump.  */
1068
                    break;
1069
                }
1070
 
1071
              /* Check labels:
1072
                   .Label0:       ; we do not care about this label
1073
                      jeq    +6
1074
                   .Label1:       ; make sure there is no label here
1075
                      jl     +4
1076
                   .Label2:       ; make sure there is no label here
1077
                      br .Label_dst
1078
 
1079
                 So, if there is .Label1 or .Label2 we cannot relax this code.
1080
                 This actually should not happen, cause for relaxable
1081
                 instructions we use RL_PCREL reloc instead of 16_PCREL.
1082
                 Will change this in the future. */
1083
 
1084
              if (rx->cdx > 0
1085
                  && msp430_elf_symbol_address_p (abfd, sec, isymbuf,
1086
                                                  irel->r_offset - 2))
1087
                continue;
1088
              if (rx->cdx > 1
1089
                  && msp430_elf_symbol_address_p (abfd, sec, isymbuf,
1090
                                                  irel->r_offset - 4))
1091
                continue;
1092
 
1093
              /* Note that we've changed the relocs, section contents, etc.  */
1094
              elf_section_data (sec)->relocs = internal_relocs;
1095
              elf_section_data (sec)->this_hdr.contents = contents;
1096
              symtab_hdr->contents = (unsigned char *) isymbuf;
1097
 
1098
              /* Fix the relocation's type.  */
1099
              if (rx->labels == 3)      /* Handle special cases.  */
1100
                irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1101
                                           R_MSP430_2X_PCREL);
1102
              else
1103
                irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
1104
                                           R_MSP430_10_PCREL);
1105
 
1106
              /* Fix the opcode right way.  */
1107
              bfd_put_16 (abfd, rx->t0, contents + irel->r_offset - rx->off);
1108
              if (rx->t1)
1109
                bfd_put_16 (abfd, rx->t1,
1110
                            contents + irel->r_offset - rx->off + 2);
1111
 
1112
              /* Delete bytes. */
1113
              if (!msp430_elf_relax_delete_bytes (abfd, sec,
1114
                                                  irel->r_offset - rx->off +
1115
                                                  rx->ncl, rx->bs))
1116
                goto error_return;
1117
 
1118
              /* Handle unconditional jumps.  */
1119
              if (rx->cdx == 0)
1120
                irel->r_offset -= 2;
1121
 
1122
              /* That will change things, so, we should relax again.
1123
                 Note that this is not required, and it may be slow.  */
1124
              *again = TRUE;
1125
            }
1126
        }
1127
    }
1128
 
1129
  if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
1130
    {
1131
      if (!link_info->keep_memory)
1132
        free (isymbuf);
1133
      else
1134
        {
1135
          /* Cache the symbols for elf_link_input_bfd.  */
1136
          symtab_hdr->contents = (unsigned char *) isymbuf;
1137
        }
1138
    }
1139
 
1140
  if (contents != NULL
1141
      && elf_section_data (sec)->this_hdr.contents != contents)
1142
    {
1143
      if (!link_info->keep_memory)
1144
        free (contents);
1145
      else
1146
        {
1147
          /* Cache the section contents for elf_link_input_bfd.  */
1148
          elf_section_data (sec)->this_hdr.contents = contents;
1149
        }
1150
    }
1151
 
1152
  if (internal_relocs != NULL
1153
      && elf_section_data (sec)->relocs != internal_relocs)
1154
    free (internal_relocs);
1155
 
1156
  return TRUE;
1157
 
1158
error_return:
1159
  if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
1160
    free (isymbuf);
1161
  if (contents != NULL
1162
      && elf_section_data (sec)->this_hdr.contents != contents)
1163
    free (contents);
1164
  if (internal_relocs != NULL
1165
      && elf_section_data (sec)->relocs != internal_relocs)
1166
    free (internal_relocs);
1167
 
1168
  return FALSE;
1169
}
1170
 
1171
 
1172
#define ELF_ARCH                bfd_arch_msp430
1173
#define ELF_MACHINE_CODE        EM_MSP430
1174
#define ELF_MACHINE_ALT1        EM_MSP430_OLD
1175
#define ELF_MAXPAGESIZE         1
1176
#define ELF_OSABI               ELFOSABI_STANDALONE
1177
 
1178
#define TARGET_LITTLE_SYM       bfd_elf32_msp430_vec
1179
#define TARGET_LITTLE_NAME      "elf32-msp430"
1180
 
1181
#define elf_info_to_howto                    msp430_info_to_howto_rela
1182
#define elf_info_to_howto_rel                NULL
1183
#define elf_backend_relocate_section         elf32_msp430_relocate_section
1184
#define elf_backend_check_relocs             elf32_msp430_check_relocs
1185
#define elf_backend_can_gc_sections          1
1186
#define elf_backend_final_write_processing   bfd_elf_msp430_final_write_processing
1187
#define elf_backend_object_p                 elf32_msp430_object_p
1188
#define elf_backend_post_process_headers     _bfd_elf_set_osabi
1189
#define bfd_elf32_bfd_relax_section          msp430_elf_relax_section
1190
 
1191
#include "elf32-target.h"

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