Coverage Report

Created: 2025-06-24 06:45

/src/binutils-gdb/bfd/elf32-lm32.c
Line
Count
Source (jump to first uncovered line)
1
/* Lattice Mico32-specific support for 32-bit ELF
2
   Copyright (C) 2008-2025 Free Software Foundation, Inc.
3
   Contributed by Jon Beniston <jon@beniston.com>
4
5
   This file is part of BFD, the Binary File Descriptor library.
6
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 3 of the License, or
10
   (at your option) any later version.
11
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
   MA 02110-1301, USA.  */
21
22
#include "sysdep.h"
23
#include "bfd.h"
24
#include "libbfd.h"
25
#include "elf-bfd.h"
26
#include "elf/lm32.h"
27
28
0
#define DEFAULT_STACK_SIZE 0x20000
29
30
0
#define PLT_ENTRY_SIZE 20
31
32
#define PLT0_ENTRY_WORD0  0
33
#define PLT0_ENTRY_WORD1  0
34
#define PLT0_ENTRY_WORD2  0
35
#define PLT0_ENTRY_WORD3  0
36
#define PLT0_ENTRY_WORD4  0
37
38
#define PLT0_PIC_ENTRY_WORD0  0
39
#define PLT0_PIC_ENTRY_WORD1  0
40
#define PLT0_PIC_ENTRY_WORD2  0
41
#define PLT0_PIC_ENTRY_WORD3  0
42
#define PLT0_PIC_ENTRY_WORD4  0
43
44
0
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
45
46
extern const bfd_target lm32_elf32_fdpic_vec;
47
48
0
#define IS_FDPIC(bfd) ((bfd)->xvec == &lm32_elf32_fdpic_vec)
49
50
static bfd_reloc_status_type lm32_elf_gprel_reloc
51
  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
52
53
/* lm32 ELF linker hash table.  */
54
55
struct elf_lm32_link_hash_table
56
{
57
  struct elf_link_hash_table root;
58
59
  /* Short-cuts to get to dynamic linker sections.  */
60
  asection *sfixup32;
61
  asection *sdynbss;
62
  asection *srelbss;
63
64
  int relocs32;
65
};
66
67
/* Get the lm32 ELF linker hash table from a link_info structure.  */
68
69
#define lm32_elf_hash_table(p) \
70
0
  ((is_elf_hash_table ((p)->hash)          \
71
0
    && elf_hash_table_id (elf_hash_table (p)) == LM32_ELF_DATA)   \
72
0
   ? (struct elf_lm32_link_hash_table *) (p)->hash : NULL)
73
74
#define lm32fdpic_got_section(info) \
75
  (lm32_elf_hash_table (info)->root.sgot)
76
#define lm32fdpic_gotrel_section(info) \
77
  (lm32_elf_hash_table (info)->root.srelgot)
78
#define lm32fdpic_fixup32_section(info) \
79
0
  (lm32_elf_hash_table (info)->sfixup32)
80
81
struct weak_symbol_list
82
{
83
  const char *name;
84
  struct weak_symbol_list *next;
85
};
86
87
/* Create an lm32 ELF linker hash table.  */
88
89
static struct bfd_link_hash_table *
90
lm32_elf_link_hash_table_create (bfd *abfd)
91
0
{
92
0
  struct elf_lm32_link_hash_table *ret;
93
0
  size_t amt = sizeof (struct elf_lm32_link_hash_table);
94
95
0
  ret = bfd_zmalloc (amt);
96
0
  if (ret == NULL)
97
0
    return NULL;
98
99
0
  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
100
0
              _bfd_elf_link_hash_newfunc,
101
0
              sizeof (struct elf_link_hash_entry)))
102
0
    {
103
0
      free (ret);
104
0
      return NULL;
105
0
    }
106
107
0
  return &ret->root.root;
108
0
}
109
110
/* Add a fixup to the ROFIXUP section.  */
111
112
static bfd_vma
113
_lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation)
114
0
{
115
0
  bfd_vma fixup_offset;
116
117
0
  if (rofixup->flags & SEC_EXCLUDE)
118
0
    return -1;
119
120
0
  fixup_offset = rofixup->reloc_count * 4;
121
0
  if (rofixup->contents)
122
0
    {
123
0
      BFD_ASSERT (fixup_offset < rofixup->size);
124
0
      if (fixup_offset < rofixup->size)
125
0
      bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset);
126
0
    }
127
0
  rofixup->reloc_count++;
128
129
0
  return fixup_offset;
130
0
}
131
132
/* Create .rofixup sections in DYNOBJ, and set up
133
   shortcuts to them in our hash table.  */
134
135
static bool
136
create_rofixup_section (bfd *dynobj, struct bfd_link_info *info)
137
0
{
138
0
  struct elf_lm32_link_hash_table *htab;
139
0
  htab = lm32_elf_hash_table (info);
140
141
0
  if (htab == NULL)
142
0
    return false;
143
144
  /* Fixup section for R_LM32_32 relocs.  */
145
0
  lm32fdpic_fixup32_section (info)
146
0
    = bfd_make_section_anyway_with_flags (dynobj,
147
0
            ".rofixup",
148
0
            (SEC_ALLOC
149
0
             | SEC_LOAD
150
0
             | SEC_HAS_CONTENTS
151
0
             | SEC_IN_MEMORY
152
0
             | SEC_LINKER_CREATED
153
0
             | SEC_READONLY));
154
0
  if (lm32fdpic_fixup32_section (info) == NULL
155
0
      || !bfd_set_section_alignment (lm32fdpic_fixup32_section (info), 2))
156
0
    return false;
157
158
0
  return true;
159
0
}
160
161
static reloc_howto_type lm32_elf_howto_table [] =
162
{
163
  /* This reloc does nothing.  */
164
  HOWTO (R_LM32_NONE,       /* type */
165
   0,         /* rightshift */
166
   0,         /* size */
167
   0,         /* bitsize */
168
   false,         /* pc_relative */
169
   0,         /* bitpos */
170
   complain_overflow_dont,    /* complain_on_overflow */
171
   bfd_elf_generic_reloc,     /* special_function */
172
   "R_LM32_NONE",       /* name */
173
   false,         /* partial_inplace */
174
   0,         /* src_mask */
175
   0,         /* dst_mask */
176
   false),        /* pcrel_offset */
177
178
  /* An 8 bit absolute relocation.  */
179
  HOWTO (R_LM32_8,        /* type */
180
   0,         /* rightshift */
181
   1,         /* size */
182
   8,         /* bitsize */
183
   false,         /* pc_relative */
184
   0,         /* bitpos */
185
   complain_overflow_bitfield,/* complain_on_overflow */
186
   bfd_elf_generic_reloc,     /* special_function */
187
   "R_LM32_8",        /* name */
188
   false,         /* partial_inplace */
189
   0,         /* src_mask */
190
   0xff,          /* dst_mask */
191
   false),        /* pcrel_offset */
192
193
  /* A 16 bit absolute relocation.  */
194
  HOWTO (R_LM32_16,       /* type */
195
   0,         /* rightshift */
196
   2,         /* size */
197
   16,          /* bitsize */
198
   false,         /* pc_relative */
199
   0,         /* bitpos */
200
   complain_overflow_bitfield,/* complain_on_overflow */
201
   bfd_elf_generic_reloc,     /* special_function */
202
   "R_LM32_16",       /* name */
203
   false,         /* partial_inplace */
204
   0,         /* src_mask */
205
   0xffff,        /* dst_mask */
206
   false),        /* pcrel_offset */
207
208
  /* A 32 bit absolute relocation.  */
209
  HOWTO (R_LM32_32,       /* type */
210
   0,         /* rightshift */
211
   4,         /* size */
212
   32,          /* bitsize */
213
   false,         /* pc_relative */
214
   0,         /* bitpos */
215
   complain_overflow_bitfield,/* complain_on_overflow */
216
   bfd_elf_generic_reloc,     /* special_function */
217
   "R_LM32_32",       /* name */
218
   false,         /* partial_inplace */
219
   0,         /* src_mask */
220
   0xffffffff,        /* dst_mask */
221
   false),        /* pcrel_offset */
222
223
  HOWTO (R_LM32_HI16,       /* type */
224
   16,          /* rightshift */
225
   4,         /* size */
226
   16,          /* bitsize */
227
   false,         /* pc_relative */
228
   0,         /* bitpos */
229
   complain_overflow_bitfield,/* complain_on_overflow */
230
   bfd_elf_generic_reloc,     /* special_function */
231
   "R_LM32_HI16",       /* name */
232
   false,         /* partial_inplace */
233
   0,         /* src_mask */
234
   0xffff,        /* dst_mask */
235
   false),        /* pcrel_offset */
236
237
  HOWTO (R_LM32_LO16,       /* type */
238
   0,         /* rightshift */
239
   4,         /* size */
240
   16,          /* bitsize */
241
   false,         /* pc_relative */
242
   0,         /* bitpos */
243
   complain_overflow_dont,    /* complain_on_overflow */
244
   bfd_elf_generic_reloc,     /* special_function */
245
   "R_LM32_LO16",       /* name */
246
   false,         /* partial_inplace */
247
   0,         /* src_mask */
248
   0xffff,        /* dst_mask */
249
   false),        /* pcrel_offset */
250
251
  HOWTO (R_LM32_GPREL16,      /* type */
252
   0,         /* rightshift */
253
   4,         /* size */
254
   16,          /* bitsize */
255
   false,         /* pc_relative */
256
   0,         /* bitpos */
257
   complain_overflow_dont,    /* complain_on_overflow */
258
   lm32_elf_gprel_reloc,      /* special_function */
259
   "R_LM32_GPREL16",      /* name */
260
   false,         /* partial_inplace */
261
   0,         /* src_mask */
262
   0xffff,        /* dst_mask */
263
   false),        /* pcrel_offset */
264
265
  HOWTO (R_LM32_CALL,       /* type */
266
   2,         /* rightshift */
267
   4,         /* size */
268
   26,          /* bitsize */
269
   true,          /* pc_relative */
270
   0,         /* bitpos */
271
   complain_overflow_signed,  /* complain_on_overflow */
272
   bfd_elf_generic_reloc,     /* special_function */
273
   "R_LM32_CALL",       /* name */
274
   false,         /* partial_inplace */
275
   0,         /* src_mask */
276
   0x3ffffff,       /* dst_mask */
277
   true),         /* pcrel_offset */
278
279
  HOWTO (R_LM32_BRANCH,       /* type */
280
   2,         /* rightshift */
281
   4,         /* size */
282
   16,          /* bitsize */
283
   true,          /* pc_relative */
284
   0,         /* bitpos */
285
   complain_overflow_signed,  /* complain_on_overflow */
286
   bfd_elf_generic_reloc,     /* special_function */
287
   "R_LM32_BRANCH",     /* name */
288
   false,         /* partial_inplace */
289
   0,         /* src_mask */
290
   0xffff,        /* dst_mask */
291
   true),         /* pcrel_offset */
292
293
  /* GNU extension to record C++ vtable hierarchy.  */
294
  HOWTO (R_LM32_GNU_VTINHERIT,      /* type */
295
   0,         /* rightshift */
296
   4,         /* size */
297
   0,         /* bitsize */
298
   false,         /* pc_relative */
299
   0,         /* bitpos */
300
   complain_overflow_dont,    /* complain_on_overflow */
301
   NULL,          /* special_function */
302
   "R_LM32_GNU_VTINHERIT",    /* name */
303
   false,         /* partial_inplace */
304
   0,         /* src_mask */
305
   0,         /* dst_mask */
306
   false),        /* pcrel_offset */
307
308
  /* GNU extension to record C++ vtable member usage.  */
309
  HOWTO (R_LM32_GNU_VTENTRY,      /* type */
310
   0,         /* rightshift */
311
   4,         /* size */
312
   0,         /* bitsize */
313
   false,         /* pc_relative */
314
   0,         /* bitpos */
315
   complain_overflow_dont,    /* complain_on_overflow */
316
   _bfd_elf_rel_vtable_reloc_fn,/* special_function */
317
   "R_LM32_GNU_VTENTRY",      /* name */
318
   false,         /* partial_inplace */
319
   0,         /* src_mask */
320
   0,         /* dst_mask */
321
   false),        /* pcrel_offset */
322
323
  HOWTO (R_LM32_16_GOT,       /* type */
324
   0,         /* rightshift */
325
   4,         /* size */
326
   16,          /* bitsize */
327
   false,         /* pc_relative */
328
   0,         /* bitpos */
329
   complain_overflow_signed,  /* complain_on_overflow */
330
   bfd_elf_generic_reloc,     /* special_function */
331
   "R_LM32_16_GOT",     /* name */
332
   false,         /* partial_inplace */
333
   0,         /* src_mask */
334
   0xffff,        /* dst_mask */
335
   false),        /* pcrel_offset */
336
337
  HOWTO (R_LM32_GOTOFF_HI16,      /* type */
338
   16,          /* rightshift */
339
   4,         /* size */
340
   16,          /* bitsize */
341
   false,         /* pc_relative */
342
   0,         /* bitpos */
343
   complain_overflow_dont,    /* complain_on_overflow */
344
   bfd_elf_generic_reloc,     /* special_function */
345
   "R_LM32_GOTOFF_HI16",      /* name */
346
   false,         /* partial_inplace */
347
   0xffff,        /* src_mask */
348
   0xffff,        /* dst_mask */
349
   false),        /* pcrel_offset */
350
351
  HOWTO (R_LM32_GOTOFF_LO16,      /* type */
352
   0,         /* rightshift */
353
   4,         /* size */
354
   16,          /* bitsize */
355
   false,         /* pc_relative */
356
   0,         /* bitpos */
357
   complain_overflow_dont,    /* complain_on_overflow */
358
   bfd_elf_generic_reloc,     /* special_function */
359
   "R_LM32_GOTOFF_LO16",      /* name */
360
   false,         /* partial_inplace */
361
   0xffff,        /* src_mask */
362
   0xffff,        /* dst_mask */
363
   false),        /* pcrel_offset */
364
365
  HOWTO (R_LM32_COPY,   /* type */
366
   0,     /* rightshift */
367
   4,     /* size */
368
   32,      /* bitsize */
369
   false,     /* pc_relative */
370
   0,     /* bitpos */
371
   complain_overflow_bitfield, /* complain_on_overflow */
372
   bfd_elf_generic_reloc, /* special_function */
373
   "R_LM32_COPY",   /* name */
374
   false,     /* partial_inplace */
375
   0xffffffff,    /* src_mask */
376
   0xffffffff,    /* dst_mask */
377
   false),    /* pcrel_offset */
378
379
  HOWTO (R_LM32_GLOB_DAT, /* type */
380
   0,     /* rightshift */
381
   4,     /* size */
382
   32,      /* bitsize */
383
   false,     /* pc_relative */
384
   0,     /* bitpos */
385
   complain_overflow_bitfield, /* complain_on_overflow */
386
   bfd_elf_generic_reloc, /* special_function */
387
   "R_LM32_GLOB_DAT", /* name */
388
   false,     /* partial_inplace */
389
   0xffffffff,    /* src_mask */
390
   0xffffffff,    /* dst_mask */
391
   false),    /* pcrel_offset */
392
393
  HOWTO (R_LM32_JMP_SLOT, /* type */
394
   0,     /* rightshift */
395
   4,     /* size */
396
   32,      /* bitsize */
397
   false,     /* pc_relative */
398
   0,     /* bitpos */
399
   complain_overflow_bitfield, /* complain_on_overflow */
400
   bfd_elf_generic_reloc, /* special_function */
401
   "R_LM32_JMP_SLOT", /* name */
402
   false,     /* partial_inplace */
403
   0xffffffff,    /* src_mask */
404
   0xffffffff,    /* dst_mask */
405
   false),    /* pcrel_offset */
406
407
  HOWTO (R_LM32_RELATIVE, /* type */
408
   0,     /* rightshift */
409
   4,     /* size */
410
   32,      /* bitsize */
411
   false,     /* pc_relative */
412
   0,     /* bitpos */
413
   complain_overflow_bitfield, /* complain_on_overflow */
414
   bfd_elf_generic_reloc, /* special_function */
415
   "R_LM32_RELATIVE", /* name */
416
   false,     /* partial_inplace */
417
   0xffffffff,    /* src_mask */
418
   0xffffffff,    /* dst_mask */
419
   false),    /* pcrel_offset */
420
421
};
422
423
/* Map BFD reloc types to lm32 ELF reloc types. */
424
425
struct lm32_reloc_map
426
{
427
    bfd_reloc_code_real_type bfd_reloc_val;
428
    unsigned char elf_reloc_val;
429
};
430
431
static const struct lm32_reloc_map lm32_reloc_map[] =
432
{
433
  { BFD_RELOC_NONE,   R_LM32_NONE },
434
  { BFD_RELOC_8,    R_LM32_8 },
435
  { BFD_RELOC_16,   R_LM32_16 },
436
  { BFD_RELOC_32,   R_LM32_32 },
437
  { BFD_RELOC_HI16,   R_LM32_HI16 },
438
  { BFD_RELOC_LO16,   R_LM32_LO16 },
439
  { BFD_RELOC_GPREL16,    R_LM32_GPREL16 },
440
  { BFD_RELOC_LM32_CALL,  R_LM32_CALL },
441
  { BFD_RELOC_LM32_BRANCH,  R_LM32_BRANCH },
442
  { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT },
443
  { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY },
444
  { BFD_RELOC_LM32_16_GOT,  R_LM32_16_GOT },
445
  { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 },
446
  { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 },
447
  { BFD_RELOC_LM32_COPY,  R_LM32_COPY },
448
  { BFD_RELOC_LM32_GLOB_DAT,  R_LM32_GLOB_DAT },
449
  { BFD_RELOC_LM32_JMP_SLOT,  R_LM32_JMP_SLOT },
450
  { BFD_RELOC_LM32_RELATIVE,  R_LM32_RELATIVE },
451
};
452
453
static reloc_howto_type *
454
lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
455
      bfd_reloc_code_real_type code)
456
0
{
457
0
  unsigned int i;
458
459
0
  for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++)
460
0
    if (lm32_reloc_map[i].bfd_reloc_val == code)
461
0
      return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val];
462
0
  return NULL;
463
0
}
464
465
static reloc_howto_type *
466
lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
467
      const char *r_name)
468
0
{
469
0
  unsigned int i;
470
471
0
  for (i = 0;
472
0
       i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]);
473
0
       i++)
474
0
    if (lm32_elf_howto_table[i].name != NULL
475
0
  && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0)
476
0
      return &lm32_elf_howto_table[i];
477
478
0
  return NULL;
479
0
}
480
481
482
/* Set the howto pointer for an Lattice Mico32 ELF reloc.  */
483
484
static bool
485
lm32_info_to_howto_rela (bfd *abfd,
486
       arelent *cache_ptr,
487
       Elf_Internal_Rela *dst)
488
0
{
489
0
  unsigned int r_type;
490
491
0
  r_type = ELF32_R_TYPE (dst->r_info);
492
0
  if (r_type >= (unsigned int) R_LM32_max)
493
0
    {
494
      /* xgettext:c-format */
495
0
      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
496
0
        abfd, r_type);
497
0
      bfd_set_error (bfd_error_bad_value);
498
0
      return false;
499
0
    }
500
0
  cache_ptr->howto = &lm32_elf_howto_table[r_type];
501
0
  return true;
502
0
}
503
504
/* Set the right machine number for an Lattice Mico32 ELF file. */
505
506
static bool
507
lm32_elf_object_p (bfd *abfd)
508
489
{
509
489
  return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
510
489
}
511
512
/* Set machine type flags just before file is written out. */
513
514
static bool
515
lm32_elf_final_write_processing (bfd *abfd)
516
0
{
517
0
  elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
518
0
  elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
519
0
  switch (bfd_get_mach (abfd))
520
0
    {
521
0
      case bfd_mach_lm32:
522
0
  elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
523
0
  break;
524
0
      default:
525
0
  abort ();
526
0
    }
527
0
  return _bfd_elf_final_write_processing (abfd);
528
0
}
529
530
/* Set the GP value for OUTPUT_BFD.  Returns FALSE if this is a
531
   dangerous relocation.  */
532
533
static bool
534
lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
535
0
{
536
0
  unsigned int count;
537
0
  asymbol **sym;
538
0
  unsigned int i;
539
540
  /* If we've already figured out what GP will be, just return it. */
541
0
  *pgp = _bfd_get_gp_value (output_bfd);
542
0
  if (*pgp)
543
0
    return true;
544
545
0
  count = bfd_get_symcount (output_bfd);
546
0
  sym = bfd_get_outsymbols (output_bfd);
547
548
  /* The linker script will have created a symbol named `_gp' with the
549
     appropriate value.  */
550
0
  if (sym == NULL)
551
0
    i = count;
552
0
  else
553
0
    {
554
0
      for (i = 0; i < count; i++, sym++)
555
0
  {
556
0
    const char *name;
557
558
0
    name = bfd_asymbol_name (*sym);
559
0
    if (*name == '_' && strcmp (name, "_gp") == 0)
560
0
      {
561
0
        *pgp = bfd_asymbol_value (*sym);
562
0
        _bfd_set_gp_value (output_bfd, *pgp);
563
0
        break;
564
0
      }
565
0
  }
566
0
    }
567
568
0
  if (i >= count)
569
0
    {
570
      /* Only get the error once.  */
571
0
      *pgp = 4;
572
0
      _bfd_set_gp_value (output_bfd, *pgp);
573
0
      return false;
574
0
    }
575
576
0
  return true;
577
0
}
578
579
/* We have to figure out the gp value, so that we can adjust the
580
   symbol value correctly.  We look up the symbol _gp in the output
581
   BFD.  If we can't find it, we're stuck.  We cache it in the ELF
582
   target data.  We don't need to adjust the symbol value for an
583
   external symbol if we are producing relocatable output.  */
584
585
static bfd_reloc_status_type
586
lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bool relocatable,
587
        char **error_message, bfd_vma *pgp)
588
0
{
589
0
  if (bfd_is_und_section (symbol->section) && !relocatable)
590
0
    {
591
0
      *pgp = 0;
592
0
      return bfd_reloc_undefined;
593
0
    }
594
595
0
  *pgp = _bfd_get_gp_value (output_bfd);
596
0
  if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0))
597
0
    {
598
0
      if (relocatable)
599
0
  {
600
    /* Make up a value.  */
601
0
    *pgp = symbol->section->output_section->vma + 0x4000;
602
0
    _bfd_set_gp_value (output_bfd, *pgp);
603
0
  }
604
0
      else if (!lm32_elf_assign_gp (output_bfd, pgp))
605
0
  {
606
0
    *error_message =
607
0
      (char *)
608
0
      _("global pointer relative relocation when _gp not defined");
609
0
    return bfd_reloc_dangerous;
610
0
  }
611
0
    }
612
613
0
  return bfd_reloc_ok;
614
0
}
615
616
static bfd_reloc_status_type
617
lm32_elf_do_gprel_relocate (bfd *abfd,
618
          reloc_howto_type *howto,
619
          asection *input_section ATTRIBUTE_UNUSED,
620
          bfd_byte *data,
621
          bfd_vma offset,
622
          bfd_vma symbol_value,
623
          bfd_vma addend)
624
0
{
625
0
  return _bfd_final_link_relocate (howto, abfd, input_section,
626
0
           data, offset, symbol_value, addend);
627
0
}
628
629
static bfd_reloc_status_type
630
lm32_elf_gprel_reloc (bfd *abfd,
631
          arelent *reloc_entry,
632
          asymbol *symbol,
633
          void *data,
634
          asection *input_section,
635
          bfd *output_bfd,
636
          char **msg)
637
0
{
638
0
  bfd_vma relocation;
639
0
  bfd_vma gp;
640
0
  bfd_reloc_status_type r;
641
642
0
  if (output_bfd != (bfd *) NULL
643
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
644
0
      && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0))
645
0
    {
646
0
      reloc_entry->address += input_section->output_offset;
647
0
      return bfd_reloc_ok;
648
0
    }
649
650
0
  if (output_bfd != NULL)
651
0
    return bfd_reloc_ok;
652
653
0
  relocation = symbol->value
654
0
    + symbol->section->output_section->vma + symbol->section->output_offset;
655
656
0
  if ((r =
657
0
       lm32_elf_final_gp (abfd, symbol, false, msg, &gp)) == bfd_reloc_ok)
658
0
    {
659
0
      relocation = relocation + reloc_entry->addend - gp;
660
0
      reloc_entry->addend = 0;
661
0
      if ((signed) relocation < -32768 || (signed) relocation > 32767)
662
0
  {
663
0
    *msg = _("global pointer relative address out of range");
664
0
    r = bfd_reloc_outofrange;
665
0
  }
666
0
      else
667
0
  {
668
0
    r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto,
669
0
               input_section,
670
0
               data, reloc_entry->address,
671
0
               relocation, reloc_entry->addend);
672
0
  }
673
0
    }
674
675
0
  return r;
676
0
}
677
678
/* Find the segment number in which OSEC, and output section, is
679
   located.  */
680
681
static unsigned
682
_lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec)
683
0
{
684
0
  struct elf_segment_map *m;
685
0
  Elf_Internal_Phdr *p;
686
687
  /* Find the segment that contains the output_section.  */
688
0
  for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr;
689
0
       m != NULL;
690
0
       m = m->next, p++)
691
0
    {
692
0
      int i;
693
694
0
      for (i = m->count - 1; i >= 0; i--)
695
0
  if (m->sections[i] == osec)
696
0
    break;
697
698
0
      if (i >= 0)
699
0
  break;
700
0
    }
701
702
0
  return p - elf_tdata (output_bfd)->phdr;
703
0
}
704
705
/* Determine if an output section is read-only.  */
706
707
inline static bool
708
_lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
709
0
{
710
0
  unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec);
711
712
0
  return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
713
0
}
714
715
/* Relocate a section */
716
717
static int
718
lm32_elf_relocate_section (bfd *output_bfd,
719
         struct bfd_link_info *info,
720
         bfd *input_bfd,
721
         asection *input_section,
722
         bfd_byte *contents,
723
         Elf_Internal_Rela *relocs,
724
         Elf_Internal_Sym *local_syms,
725
         asection **local_sections)
726
0
{
727
0
  Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
728
0
  struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
729
0
  Elf_Internal_Rela *rel, *relend;
730
0
  struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
731
0
  bfd_vma *local_got_offsets;
732
0
  asection *sgot;
733
734
0
  if (htab == NULL)
735
0
    return false;
736
737
0
  local_got_offsets = elf_local_got_offsets (input_bfd);
738
739
0
  sgot = htab->root.sgot;
740
741
0
  symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
742
0
  sym_hashes = elf_sym_hashes (input_bfd);
743
744
0
  rel = relocs;
745
0
  relend = relocs + input_section->reloc_count;
746
0
  for (; rel < relend; rel++)
747
0
    {
748
0
      reloc_howto_type *howto;
749
0
      unsigned int r_type;
750
0
      unsigned long r_symndx;
751
0
      Elf_Internal_Sym *sym;
752
0
      asection *sec;
753
0
      struct elf_link_hash_entry *h;
754
0
      bfd_vma relocation;
755
0
      bfd_vma gp;
756
0
      bfd_reloc_status_type r;
757
0
      const char *name = NULL;
758
759
0
      r_symndx = ELF32_R_SYM (rel->r_info);
760
0
      r_type = ELF32_R_TYPE (rel->r_info);
761
762
0
      if (r_type == R_LM32_GNU_VTENTRY
763
0
    || r_type == R_LM32_GNU_VTINHERIT )
764
0
  continue;
765
766
0
      h = NULL;
767
0
      sym = NULL;
768
0
      sec = NULL;
769
770
0
      howto = lm32_elf_howto_table + r_type;
771
772
0
      if (r_symndx < symtab_hdr->sh_info)
773
0
  {
774
    /* It's a local symbol.  */
775
0
    sym = local_syms + r_symndx;
776
0
    sec = local_sections[r_symndx];
777
0
    relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
778
0
    name = bfd_elf_string_from_elf_section
779
0
      (input_bfd, symtab_hdr->sh_link, sym->st_name);
780
0
    name = name == NULL ? bfd_section_name (sec) : name;
781
0
  }
782
0
      else
783
0
  {
784
    /* It's a global symbol.  */
785
0
    bool unresolved_reloc;
786
0
    bool warned, ignored;
787
788
0
    RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
789
0
           r_symndx, symtab_hdr, sym_hashes,
790
0
           h, sec, relocation,
791
0
           unresolved_reloc, warned, ignored);
792
0
    name = h->root.root.string;
793
0
  }
794
795
0
      if (sec != NULL && discarded_section (sec))
796
0
  RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
797
0
           rel, 1, relend, howto, 0, contents);
798
799
0
      if (bfd_link_relocatable (info))
800
0
  {
801
    /* This is a relocatable link.  We don't have to change
802
       anything, unless the reloc is against a section symbol,
803
       in which case we have to adjust according to where the
804
       section symbol winds up in the output section.  */
805
0
    if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
806
0
      continue;
807
808
    /* If partial_inplace, we need to store any additional addend
809
       back in the section.  */
810
0
    if (! howto->partial_inplace)
811
0
      continue;
812
813
    /* Shouldn't reach here.  */
814
0
    abort ();
815
0
    r = bfd_reloc_ok;
816
0
  }
817
0
      else
818
0
  {
819
0
    switch (howto->type)
820
0
      {
821
0
      case R_LM32_GPREL16:
822
0
        if (!lm32_elf_assign_gp (output_bfd, &gp))
823
0
    r = bfd_reloc_dangerous;
824
0
        else
825
0
    {
826
0
      relocation = relocation + rel->r_addend - gp;
827
0
      rel->r_addend = 0;
828
0
      if ((signed)relocation < -32768 || (signed)relocation > 32767)
829
0
        r = bfd_reloc_outofrange;
830
0
      else
831
0
        {
832
0
          r = _bfd_final_link_relocate (howto, input_bfd,
833
0
                input_section, contents,
834
0
                rel->r_offset, relocation,
835
0
                rel->r_addend);
836
0
        }
837
0
    }
838
0
        break;
839
0
      case R_LM32_16_GOT:
840
        /* Relocation is to the entry for this symbol in the global
841
     offset table.  */
842
0
        BFD_ASSERT (sgot != NULL);
843
0
        if (h != NULL)
844
0
    {
845
0
      bool dyn;
846
0
      bfd_vma off;
847
848
0
      off = h->got.offset;
849
0
      BFD_ASSERT (off != (bfd_vma) -1);
850
851
0
      dyn = htab->root.dynamic_sections_created;
852
0
      if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
853
0
               bfd_link_pic (info),
854
0
               h)
855
0
          || (bfd_link_pic (info)
856
0
        && (info->symbolic
857
0
            || h->dynindx == -1
858
0
            || h->forced_local)
859
0
        && h->def_regular))
860
0
        {
861
          /* This is actually a static link, or it is a
862
       -Bsymbolic link and the symbol is defined
863
       locally, or the symbol was forced to be local
864
       because of a version file.  We must initialize
865
       this entry in the global offset table.  Since the
866
       offset must always be a multiple of 4, we use the
867
       least significant bit to record whether we have
868
       initialized it already.
869
870
       When doing a dynamic link, we create a .rela.got
871
       relocation entry to initialize the value.  This
872
       is done in the finish_dynamic_symbol routine.  */
873
0
          if ((off & 1) != 0)
874
0
      off &= ~1;
875
0
          else
876
0
      {
877
        /* Write entry in GOT */
878
0
        bfd_put_32 (output_bfd, relocation,
879
0
              sgot->contents + off);
880
        /* Create entry in .rofixup pointing to GOT entry.  */
881
0
         if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak)
882
0
           {
883
0
             _lm32fdpic_add_rofixup (output_bfd,
884
0
                   lm32fdpic_fixup32_section
885
0
              (info),
886
0
                   sgot->output_section->vma
887
0
              + sgot->output_offset
888
0
              + off);
889
0
           }
890
        /* Mark GOT entry as having been written.  */
891
0
        h->got.offset |= 1;
892
0
      }
893
0
        }
894
895
0
      relocation = sgot->output_offset + off;
896
0
    }
897
0
        else
898
0
    {
899
0
      bfd_vma off;
900
0
      bfd_byte *loc;
901
902
0
      BFD_ASSERT (local_got_offsets != NULL
903
0
            && local_got_offsets[r_symndx] != (bfd_vma) -1);
904
905
      /* Get offset into GOT table.  */
906
0
      off = local_got_offsets[r_symndx];
907
908
      /* The offset must always be a multiple of 4.  We use
909
         the least significant bit to record whether we have
910
         already processed this entry.  */
911
0
      if ((off & 1) != 0)
912
0
        off &= ~1;
913
0
      else
914
0
        {
915
          /* Write entry in GOT.  */
916
0
          bfd_put_32 (output_bfd, relocation, sgot->contents + off);
917
          /* Create entry in .rofixup pointing to GOT entry.  */
918
0
          if (IS_FDPIC (output_bfd))
919
0
      {
920
0
        _lm32fdpic_add_rofixup (output_bfd,
921
0
              lm32fdpic_fixup32_section
922
0
               (info),
923
0
              sgot->output_section->vma
924
0
               + sgot->output_offset
925
0
               + off);
926
0
      }
927
928
0
          if (bfd_link_pic (info))
929
0
      {
930
0
        asection *srelgot;
931
0
        Elf_Internal_Rela outrel;
932
933
        /* We need to generate a R_LM32_RELATIVE reloc
934
           for the dynamic linker.  */
935
0
        srelgot = htab->root.srelgot;
936
0
        BFD_ASSERT (srelgot != NULL);
937
938
0
        outrel.r_offset = (sgot->output_section->vma
939
0
               + sgot->output_offset
940
0
               + off);
941
0
        outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
942
0
        outrel.r_addend = relocation;
943
0
        loc = srelgot->contents;
944
0
        loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
945
0
        bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
946
0
        ++srelgot->reloc_count;
947
0
      }
948
949
0
          local_got_offsets[r_symndx] |= 1;
950
0
        }
951
952
953
0
      relocation = sgot->output_offset + off;
954
0
    }
955
956
        /* Addend should be zero.  */
957
0
        if (rel->r_addend != 0)
958
0
    _bfd_error_handler
959
0
      (_("internal error: addend should be zero for %s"),
960
0
       "R_LM32_16_GOT");
961
962
0
        r = _bfd_final_link_relocate (howto,
963
0
              input_bfd,
964
0
              input_section,
965
0
              contents,
966
0
              rel->r_offset,
967
0
              relocation,
968
0
              rel->r_addend);
969
0
        break;
970
971
0
      case R_LM32_GOTOFF_LO16:
972
0
      case R_LM32_GOTOFF_HI16:
973
        /* Relocation is offset from GOT.  */
974
0
        BFD_ASSERT (sgot != NULL);
975
0
        relocation -= sgot->output_section->vma;
976
        /* Account for sign-extension.  */
977
0
        if ((r_type == R_LM32_GOTOFF_HI16)
978
0
      && ((relocation + rel->r_addend) & 0x8000))
979
0
    rel->r_addend += 0x10000;
980
0
        r = _bfd_final_link_relocate (howto,
981
0
              input_bfd,
982
0
              input_section,
983
0
              contents,
984
0
              rel->r_offset,
985
0
              relocation,
986
0
              rel->r_addend);
987
0
        break;
988
989
0
      case R_LM32_32:
990
0
        if (IS_FDPIC (output_bfd))
991
0
    {
992
0
      if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
993
0
        {
994
          /* Only create .rofixup entries for relocs in loadable sections.  */
995
0
          if ((bfd_section_flags (input_section->output_section)
996
0
        & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
997
998
0
      {
999
        /* Check address to be modified is writable.  */
1000
0
        if (_lm32fdpic_osec_readonly_p (output_bfd,
1001
0
                input_section
1002
0
                 ->output_section))
1003
0
          {
1004
0
            info->callbacks->warning
1005
0
        (info,
1006
0
         _("cannot emit dynamic relocations in read-only section"),
1007
0
         name, input_bfd, input_section, rel->r_offset);
1008
0
             return false;
1009
0
          }
1010
        /* Create entry in .rofixup section.  */
1011
0
        _lm32fdpic_add_rofixup (output_bfd,
1012
0
              lm32fdpic_fixup32_section (info),
1013
0
              input_section->output_section->vma
1014
0
               + input_section->output_offset
1015
0
               + rel->r_offset);
1016
0
      }
1017
0
        }
1018
0
    }
1019
        /* Fall through.  */
1020
1021
0
      default:
1022
0
        r = _bfd_final_link_relocate (howto,
1023
0
              input_bfd,
1024
0
              input_section,
1025
0
              contents,
1026
0
              rel->r_offset,
1027
0
              relocation,
1028
0
              rel->r_addend);
1029
0
        break;
1030
0
      }
1031
0
  }
1032
1033
0
      if (r != bfd_reloc_ok)
1034
0
  {
1035
0
    const char *msg = NULL;
1036
0
    arelent bfd_reloc;
1037
1038
0
    if (! lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel))
1039
0
      continue;
1040
0
    howto = bfd_reloc.howto;
1041
1042
0
    if (h != NULL)
1043
0
      name = h->root.root.string;
1044
0
    else
1045
0
      {
1046
0
        name = (bfd_elf_string_from_elf_section
1047
0
          (input_bfd, symtab_hdr->sh_link, sym->st_name));
1048
0
        if (name == NULL || *name == '\0')
1049
0
    name = bfd_section_name (sec);
1050
0
      }
1051
1052
0
    switch (r)
1053
0
      {
1054
0
      case bfd_reloc_overflow:
1055
0
        if ((h != NULL)
1056
0
     && (h->root.type == bfd_link_hash_undefweak))
1057
0
    break;
1058
0
        (*info->callbacks->reloc_overflow)
1059
0
    (info, (h ? &h->root : NULL), name, howto->name,
1060
0
     (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1061
0
        break;
1062
1063
0
      case bfd_reloc_undefined:
1064
0
        (*info->callbacks->undefined_symbol)
1065
0
    (info, name, input_bfd, input_section, rel->r_offset, true);
1066
0
        break;
1067
1068
0
      case bfd_reloc_outofrange:
1069
0
        msg = _("internal error: out of range error");
1070
0
        goto common_error;
1071
1072
0
      case bfd_reloc_notsupported:
1073
0
        msg = _("internal error: unsupported relocation error");
1074
0
        goto common_error;
1075
1076
0
      case bfd_reloc_dangerous:
1077
0
        msg = _("internal error: dangerous error");
1078
0
        goto common_error;
1079
1080
0
      default:
1081
0
        msg = _("internal error: unknown error");
1082
        /* fall through */
1083
1084
0
      common_error:
1085
0
        (*info->callbacks->warning) (info, msg, name, input_bfd,
1086
0
             input_section, rel->r_offset);
1087
0
        break;
1088
0
      }
1089
0
  }
1090
0
    }
1091
1092
0
  return true;
1093
0
}
1094
1095
static asection *
1096
lm32_elf_gc_mark_hook (asection *sec,
1097
           struct bfd_link_info *info,
1098
           Elf_Internal_Rela *rel,
1099
           struct elf_link_hash_entry *h,
1100
           Elf_Internal_Sym *sym)
1101
0
{
1102
0
  if (h != NULL)
1103
0
    switch (ELF32_R_TYPE (rel->r_info))
1104
0
      {
1105
0
      case R_LM32_GNU_VTINHERIT:
1106
0
      case R_LM32_GNU_VTENTRY:
1107
0
  return NULL;
1108
0
      }
1109
1110
0
  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1111
0
}
1112
1113
/* Look through the relocs for a section during the first phase.  */
1114
1115
static bool
1116
lm32_elf_check_relocs (bfd *abfd,
1117
           struct bfd_link_info *info,
1118
           asection *sec,
1119
           const Elf_Internal_Rela *relocs)
1120
0
{
1121
0
  Elf_Internal_Shdr *symtab_hdr;
1122
0
  struct elf_link_hash_entry **sym_hashes;
1123
0
  const Elf_Internal_Rela *rel;
1124
0
  const Elf_Internal_Rela *rel_end;
1125
0
  struct elf_lm32_link_hash_table *htab;
1126
0
  bfd *dynobj;
1127
1128
0
  if (bfd_link_relocatable (info))
1129
0
    return true;
1130
1131
0
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1132
0
  sym_hashes = elf_sym_hashes (abfd);
1133
1134
0
  htab = lm32_elf_hash_table (info);
1135
0
  if (htab == NULL)
1136
0
    return false;
1137
1138
0
  dynobj = htab->root.dynobj;
1139
1140
0
  rel_end = relocs + sec->reloc_count;
1141
0
  for (rel = relocs; rel < rel_end; rel++)
1142
0
    {
1143
0
      int r_type;
1144
0
      struct elf_link_hash_entry *h;
1145
0
      unsigned long r_symndx;
1146
1147
0
      r_symndx = ELF32_R_SYM (rel->r_info);
1148
0
      r_type = ELF32_R_TYPE (rel->r_info);
1149
0
      if (r_symndx < symtab_hdr->sh_info)
1150
0
  h = NULL;
1151
0
      else
1152
0
  {
1153
0
    h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1154
0
    while (h->root.type == bfd_link_hash_indirect
1155
0
     || h->root.type == bfd_link_hash_warning)
1156
0
      h = (struct elf_link_hash_entry *) h->root.u.i.link;
1157
0
  }
1158
1159
      /* Some relocs require a global offset table.  */
1160
0
      if (htab->root.sgot == NULL)
1161
0
  {
1162
0
    switch (r_type)
1163
0
      {
1164
0
      case R_LM32_16_GOT:
1165
0
      case R_LM32_GOTOFF_HI16:
1166
0
      case R_LM32_GOTOFF_LO16:
1167
0
        if (dynobj == NULL)
1168
0
    htab->root.dynobj = dynobj = abfd;
1169
0
        if (!_bfd_elf_create_got_section (dynobj, info))
1170
0
    return false;
1171
0
        break;
1172
0
      }
1173
0
  }
1174
1175
      /* Some relocs require a rofixup table. */
1176
0
      if (IS_FDPIC (abfd))
1177
0
  {
1178
0
    switch (r_type)
1179
0
      {
1180
0
      case R_LM32_32:
1181
        /* FDPIC requires a GOT if there is a .rofixup section
1182
     (Normal ELF doesn't). */
1183
0
        if (dynobj == NULL)
1184
0
    htab->root.dynobj = dynobj = abfd;
1185
0
        if (!_bfd_elf_create_got_section (dynobj, info))
1186
0
    return false;
1187
        /* Create .rofixup section */
1188
0
        if (htab->sfixup32 == NULL)
1189
0
    {
1190
0
      if (! create_rofixup_section (dynobj, info))
1191
0
        return false;
1192
0
    }
1193
0
        break;
1194
0
      case R_LM32_16_GOT:
1195
0
      case R_LM32_GOTOFF_HI16:
1196
0
      case R_LM32_GOTOFF_LO16:
1197
        /* Create .rofixup section.  */
1198
0
        if (htab->sfixup32 == NULL)
1199
0
    {
1200
0
      if (dynobj == NULL)
1201
0
        htab->root.dynobj = dynobj = abfd;
1202
0
      if (! create_rofixup_section (dynobj, info))
1203
0
        return false;
1204
0
    }
1205
0
        break;
1206
0
      }
1207
0
  }
1208
1209
0
      switch (r_type)
1210
0
  {
1211
0
  case R_LM32_16_GOT:
1212
0
    if (h != NULL)
1213
0
      h->got.refcount += 1;
1214
0
    else
1215
0
      {
1216
0
        bfd_signed_vma *local_got_refcounts;
1217
1218
        /* This is a global offset table entry for a local symbol.  */
1219
0
        local_got_refcounts = elf_local_got_refcounts (abfd);
1220
0
        if (local_got_refcounts == NULL)
1221
0
    {
1222
0
      bfd_size_type size;
1223
1224
0
      size = symtab_hdr->sh_info;
1225
0
      size *= sizeof (bfd_signed_vma);
1226
0
      local_got_refcounts = bfd_zalloc (abfd, size);
1227
0
      if (local_got_refcounts == NULL)
1228
0
        return false;
1229
0
      elf_local_got_refcounts (abfd) = local_got_refcounts;
1230
0
    }
1231
0
        local_got_refcounts[r_symndx] += 1;
1232
0
      }
1233
0
    break;
1234
1235
  /* This relocation describes the C++ object vtable hierarchy.
1236
     Reconstruct it for later use during GC.  */
1237
0
  case R_LM32_GNU_VTINHERIT:
1238
0
    if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1239
0
      return false;
1240
0
    break;
1241
1242
  /* This relocation describes which C++ vtable entries are actually
1243
     used.  Record for later use during GC.  */
1244
0
  case R_LM32_GNU_VTENTRY:
1245
0
    if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1246
0
      return false;
1247
0
    break;
1248
1249
0
  }
1250
0
    }
1251
1252
0
  return true;
1253
0
}
1254
1255
/* Finish up the dynamic sections.  */
1256
1257
static bool
1258
lm32_elf_finish_dynamic_sections (bfd *output_bfd,
1259
          struct bfd_link_info *info)
1260
0
{
1261
0
  struct elf_lm32_link_hash_table *htab;
1262
0
  bfd *dynobj;
1263
0
  asection *sdyn;
1264
0
  asection *sgot;
1265
1266
0
  htab = lm32_elf_hash_table (info);
1267
0
  if (htab == NULL)
1268
0
    return false;
1269
1270
0
  dynobj = htab->root.dynobj;
1271
1272
0
  sgot = htab->root.sgotplt;
1273
0
  sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1274
1275
0
  if (htab->root.dynamic_sections_created)
1276
0
    {
1277
0
      asection *splt;
1278
0
      Elf32_External_Dyn *dyncon, *dynconend;
1279
1280
0
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
1281
1282
0
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
1283
0
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1284
1285
0
      for (; dyncon < dynconend; dyncon++)
1286
0
  {
1287
0
    Elf_Internal_Dyn dyn;
1288
0
    asection *s;
1289
1290
0
    bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1291
1292
0
    switch (dyn.d_tag)
1293
0
      {
1294
0
      default:
1295
0
        break;
1296
1297
0
      case DT_PLTGOT:
1298
0
        s = htab->root.sgotplt;
1299
0
        goto get_vma;
1300
0
      case DT_JMPREL:
1301
0
        s = htab->root.srelplt;
1302
0
      get_vma:
1303
0
        dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1304
0
        bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1305
0
        break;
1306
1307
0
      case DT_PLTRELSZ:
1308
0
        s = htab->root.srelplt;
1309
0
        dyn.d_un.d_val = s->size;
1310
0
        bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1311
0
        break;
1312
0
      }
1313
0
  }
1314
1315
      /* Fill in the first entry in the procedure linkage table.  */
1316
0
      splt = htab->root.splt;
1317
0
      if (splt && splt->size > 0)
1318
0
  {
1319
0
    if (bfd_link_pic (info))
1320
0
      {
1321
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
1322
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
1323
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
1324
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
1325
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
1326
0
      }
1327
0
    else
1328
0
      {
1329
0
        unsigned long addr;
1330
        /* addr = .got + 4 */
1331
0
        addr = sgot->output_section->vma + sgot->output_offset + 4;
1332
0
        bfd_put_32 (output_bfd,
1333
0
        PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1334
0
        splt->contents);
1335
0
        bfd_put_32 (output_bfd,
1336
0
        PLT0_ENTRY_WORD1 | (addr & 0xffff),
1337
0
        splt->contents + 4);
1338
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1339
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1340
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1341
0
      }
1342
1343
0
    elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1344
0
      PLT_ENTRY_SIZE;
1345
0
  }
1346
0
    }
1347
1348
  /* Fill in the first three entries in the global offset table.  */
1349
0
  if (sgot && sgot->size > 0)
1350
0
    {
1351
0
      if (sdyn == NULL)
1352
0
  bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1353
0
      else
1354
0
  bfd_put_32 (output_bfd,
1355
0
        sdyn->output_section->vma + sdyn->output_offset,
1356
0
        sgot->contents);
1357
0
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1358
0
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1359
1360
      /* FIXME:  This can be null if create_dynamic_sections wasn't called. */
1361
0
      if (elf_section_data (sgot->output_section) != NULL)
1362
0
  elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1363
0
    }
1364
1365
0
  if (lm32fdpic_fixup32_section (info))
1366
0
    {
1367
0
      struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1368
0
      bfd_vma got_value = hgot->root.u.def.value
1369
0
      + hgot->root.u.def.section->output_section->vma
1370
0
      + hgot->root.u.def.section->output_offset;
1371
0
      struct bfd_link_hash_entry *hend;
1372
1373
      /* Last entry is pointer to GOT.  */
1374
0
      _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value);
1375
1376
      /* Check we wrote enough entries.  */
1377
0
      if (lm32fdpic_fixup32_section (info)->size
1378
0
        != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1379
0
  {
1380
0
    _bfd_error_handler
1381
0
      ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64
1382
0
       " != relocs %d",
1383
0
      (int64_t) (lm32fdpic_fixup32_section (info)->size / 4),
1384
0
      lm32fdpic_fixup32_section (info)->reloc_count);
1385
0
    return false;
1386
0
  }
1387
1388
0
      hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1389
0
        false, false, true);
1390
0
      if (hend
1391
0
    && (hend->type == bfd_link_hash_defined
1392
0
        || hend->type == bfd_link_hash_defweak)
1393
0
    && hend->u.def.section->output_section != NULL)
1394
0
  {
1395
0
    bfd_vma value =
1396
0
      lm32fdpic_fixup32_section (info)->output_section->vma
1397
0
      + lm32fdpic_fixup32_section (info)->output_offset
1398
0
      + lm32fdpic_fixup32_section (info)->size
1399
0
      - hend->u.def.section->output_section->vma
1400
0
      - hend->u.def.section->output_offset;
1401
0
    BFD_ASSERT (hend->u.def.value == value);
1402
0
    if (hend->u.def.value != value)
1403
0
      {
1404
0
        _bfd_error_handler
1405
0
    ("LINKER BUG: .rofixup section hend->u.def.value != value: %"
1406
0
     PRId64 " != %" PRId64,
1407
0
     (int64_t) hend->u.def.value, (int64_t) value);
1408
0
        return false;
1409
0
      }
1410
0
  }
1411
0
    }
1412
1413
0
  return true;
1414
0
}
1415
1416
/* Finish up dynamic symbol handling.  We set the contents of various
1417
   dynamic sections here.  */
1418
1419
static bool
1420
lm32_elf_finish_dynamic_symbol (bfd *output_bfd,
1421
        struct bfd_link_info *info,
1422
        struct elf_link_hash_entry *h,
1423
        Elf_Internal_Sym *sym)
1424
0
{
1425
0
  struct elf_lm32_link_hash_table *htab;
1426
0
  bfd_byte *loc;
1427
1428
0
  htab = lm32_elf_hash_table (info);
1429
1430
0
  if (h->plt.offset != (bfd_vma) -1)
1431
0
    {
1432
0
      asection *splt;
1433
0
      asection *sgot;
1434
0
      asection *srela;
1435
1436
0
      bfd_vma plt_index;
1437
0
      bfd_vma got_offset;
1438
0
      Elf_Internal_Rela rela;
1439
1440
      /* This symbol has an entry in the procedure linkage table.  Set
1441
   it up.  */
1442
0
      BFD_ASSERT (h->dynindx != -1);
1443
1444
0
      splt = htab->root.splt;
1445
0
      sgot = htab->root.sgotplt;
1446
0
      srela = htab->root.srelplt;
1447
0
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1448
1449
      /* Get the index in the procedure linkage table which
1450
   corresponds to this symbol.  This is the index of this symbol
1451
   in all the symbols for which we are making plt entries.  The
1452
   first entry in the procedure linkage table is reserved.  */
1453
0
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1454
1455
      /* Get the offset into the .got table of the entry that
1456
  corresponds to this function.  Each .got entry is 4 bytes.
1457
  The first three are reserved.  */
1458
0
      got_offset = (plt_index + 3) * 4;
1459
1460
      /* Fill in the entry in the procedure linkage table.  */
1461
0
      if (! bfd_link_pic (info))
1462
0
  {
1463
    /* TODO */
1464
0
  }
1465
0
      else
1466
0
  {
1467
    /* TODO */
1468
0
  }
1469
1470
      /* Fill in the entry in the global offset table.  */
1471
0
      bfd_put_32 (output_bfd,
1472
0
      (splt->output_section->vma
1473
0
       + splt->output_offset
1474
0
       + h->plt.offset
1475
0
       + 12), /* same offset */
1476
0
      sgot->contents + got_offset);
1477
1478
      /* Fill in the entry in the .rela.plt section.  */
1479
0
      rela.r_offset = (sgot->output_section->vma
1480
0
           + sgot->output_offset
1481
0
           + got_offset);
1482
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1483
0
      rela.r_addend = 0;
1484
0
      loc = srela->contents;
1485
0
      loc += plt_index * sizeof (Elf32_External_Rela);
1486
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1487
1488
0
      if (!h->def_regular)
1489
0
  {
1490
    /* Mark the symbol as undefined, rather than as defined in
1491
       the .plt section.  Leave the value alone.  */
1492
0
    sym->st_shndx = SHN_UNDEF;
1493
0
  }
1494
1495
0
    }
1496
1497
0
  if (h->got.offset != (bfd_vma) -1)
1498
0
    {
1499
0
      asection *sgot;
1500
0
      asection *srela;
1501
0
      Elf_Internal_Rela rela;
1502
1503
      /* This symbol has an entry in the global offset table.  Set it
1504
   up.  */
1505
0
      sgot = htab->root.sgot;
1506
0
      srela = htab->root.srelgot;
1507
0
      BFD_ASSERT (sgot != NULL && srela != NULL);
1508
1509
0
      rela.r_offset = (sgot->output_section->vma
1510
0
           + sgot->output_offset
1511
0
           + (h->got.offset &~ 1));
1512
1513
      /* If this is a -Bsymbolic link, and the symbol is defined
1514
   locally, we just want to emit a RELATIVE reloc.  Likewise if
1515
   the symbol was forced to be local because of a version file.
1516
   The entry in the global offset table will already have been
1517
   initialized in the relocate_section function.  */
1518
0
      if (bfd_link_pic (info)
1519
0
    && (info->symbolic
1520
0
        || h->dynindx == -1
1521
0
        || h->forced_local)
1522
0
    && h->def_regular)
1523
0
  {
1524
0
    rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1525
0
    rela.r_addend = (h->root.u.def.value
1526
0
         + h->root.u.def.section->output_section->vma
1527
0
         + h->root.u.def.section->output_offset);
1528
0
  }
1529
0
      else
1530
0
  {
1531
0
    BFD_ASSERT ((h->got.offset & 1) == 0);
1532
0
    bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1533
0
    rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1534
0
    rela.r_addend = 0;
1535
0
  }
1536
1537
0
      loc = srela->contents;
1538
0
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1539
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1540
0
      ++srela->reloc_count;
1541
0
    }
1542
1543
0
  if (h->needs_copy)
1544
0
    {
1545
0
      asection *s;
1546
0
      Elf_Internal_Rela rela;
1547
1548
      /* This symbols needs a copy reloc.  Set it up.  */
1549
0
      BFD_ASSERT (h->dynindx != -1
1550
0
      && (h->root.type == bfd_link_hash_defined
1551
0
          || h->root.type == bfd_link_hash_defweak));
1552
1553
0
      s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
1554
0
      BFD_ASSERT (s != NULL);
1555
1556
0
      rela.r_offset = (h->root.u.def.value
1557
0
           + h->root.u.def.section->output_section->vma
1558
0
           + h->root.u.def.section->output_offset);
1559
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1560
0
      rela.r_addend = 0;
1561
0
      loc = s->contents;
1562
0
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
1563
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1564
0
      ++s->reloc_count;
1565
0
    }
1566
1567
  /* Mark some specially defined symbols as absolute.  */
1568
0
  if (h == htab->root.hdynamic || h == htab->root.hgot)
1569
0
    sym->st_shndx = SHN_ABS;
1570
1571
0
  return true;
1572
0
}
1573
1574
static enum elf_reloc_type_class
1575
lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1576
         const asection *rel_sec ATTRIBUTE_UNUSED,
1577
         const Elf_Internal_Rela *rela)
1578
0
{
1579
0
  switch ((int) ELF32_R_TYPE (rela->r_info))
1580
0
    {
1581
0
    case R_LM32_RELATIVE:  return reloc_class_relative;
1582
0
    case R_LM32_JMP_SLOT:  return reloc_class_plt;
1583
0
    case R_LM32_COPY:      return reloc_class_copy;
1584
0
    default:       return reloc_class_normal;
1585
0
    }
1586
0
}
1587
1588
/* Adjust a symbol defined by a dynamic object and referenced by a
1589
   regular object.  The current definition is in some section of the
1590
   dynamic object, but we're not including those sections.  We have to
1591
   change the definition to something the rest of the link can
1592
   understand.  */
1593
1594
static bool
1595
lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1596
        struct elf_link_hash_entry *h)
1597
0
{
1598
0
  struct elf_lm32_link_hash_table *htab;
1599
0
  bfd *dynobj;
1600
0
  asection *s;
1601
1602
0
  dynobj = elf_hash_table (info)->dynobj;
1603
1604
  /* Make sure we know what is going on here.  */
1605
0
  BFD_ASSERT (dynobj != NULL
1606
0
        && (h->needs_plt
1607
0
      || h->is_weakalias
1608
0
      || (h->def_dynamic
1609
0
          && h->ref_regular
1610
0
          && !h->def_regular)));
1611
1612
  /* If this is a function, put it in the procedure linkage table.  We
1613
     will fill in the contents of the procedure linkage table later,
1614
     when we know the address of the .got section.  */
1615
0
  if (h->type == STT_FUNC
1616
0
      || h->needs_plt)
1617
0
    {
1618
0
      if (! bfd_link_pic (info)
1619
0
    && !h->def_dynamic
1620
0
    && !h->ref_dynamic
1621
0
    && h->root.type != bfd_link_hash_undefweak
1622
0
    && h->root.type != bfd_link_hash_undefined)
1623
0
  {
1624
    /* This case can occur if we saw a PLT reloc in an input
1625
       file, but the symbol was never referred to by a dynamic
1626
       object.  In such a case, we don't actually need to build
1627
       a procedure linkage table, and we can just do a PCREL
1628
       reloc instead.  */
1629
0
    h->plt.offset = (bfd_vma) -1;
1630
0
    h->needs_plt = 0;
1631
0
  }
1632
1633
0
      return true;
1634
0
    }
1635
0
  else
1636
0
    h->plt.offset = (bfd_vma) -1;
1637
1638
  /* If this is a weak symbol, and there is a real definition, the
1639
     processor independent code will have arranged for us to see the
1640
     real definition first, and we can just use the same value.  */
1641
0
  if (h->is_weakalias)
1642
0
    {
1643
0
      struct elf_link_hash_entry *def = weakdef (h);
1644
0
      BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1645
0
      h->root.u.def.section = def->root.u.def.section;
1646
0
      h->root.u.def.value = def->root.u.def.value;
1647
0
      return true;
1648
0
    }
1649
1650
  /* This is a reference to a symbol defined by a dynamic object which
1651
     is not a function.  */
1652
1653
  /* If we are creating a shared library, we must presume that the
1654
     only references to the symbol are via the global offset table.
1655
     For such cases we need not do anything here; the relocations will
1656
     be handled correctly by relocate_section.  */
1657
0
  if (bfd_link_pic (info))
1658
0
    return true;
1659
1660
  /* If there are no references to this symbol that do not use the
1661
     GOT, we don't need to generate a copy reloc.  */
1662
0
  if (!h->non_got_ref)
1663
0
    return true;
1664
1665
  /* If -z nocopyreloc was given, we won't generate them either.  */
1666
0
  if (0 && info->nocopyreloc)
1667
0
    {
1668
0
      h->non_got_ref = 0;
1669
0
      return true;
1670
0
    }
1671
1672
  /* If we don't find any dynamic relocs in read-only sections, then
1673
     we'll be keeping the dynamic relocs and avoiding the copy reloc.  */
1674
0
  if (0 && !_bfd_elf_readonly_dynrelocs (h))
1675
0
    {
1676
0
      h->non_got_ref = 0;
1677
0
      return true;
1678
0
    }
1679
1680
  /* We must allocate the symbol in our .dynbss section, which will
1681
     become part of the .bss section of the executable.  There will be
1682
     an entry for this symbol in the .dynsym section.  The dynamic
1683
     object will contain position independent code, so all references
1684
     from the dynamic object to this symbol will go through the global
1685
     offset table.  The dynamic linker will use the .dynsym entry to
1686
     determine the address it must put in the global offset table, so
1687
     both the dynamic object and the regular object will refer to the
1688
     same memory location for the variable.  */
1689
1690
0
  htab = lm32_elf_hash_table (info);
1691
0
  if (htab == NULL)
1692
0
    return false;
1693
1694
0
  s = htab->sdynbss;
1695
0
  BFD_ASSERT (s != NULL);
1696
1697
  /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1698
     to copy the initial value out of the dynamic object and into the
1699
     runtime process image.  We need to remember the offset into the
1700
     .rela.bss section we are going to use.  */
1701
0
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1702
0
    {
1703
0
      asection *srel;
1704
1705
0
      srel = htab->srelbss;
1706
0
      BFD_ASSERT (srel != NULL);
1707
0
      srel->size += sizeof (Elf32_External_Rela);
1708
0
      h->needs_copy = 1;
1709
0
    }
1710
1711
0
  return _bfd_elf_adjust_dynamic_copy (info, h, s);
1712
0
}
1713
1714
/* Allocate space in .plt, .got and associated reloc sections for
1715
   dynamic relocs.  */
1716
1717
static bool
1718
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1719
0
{
1720
0
  struct bfd_link_info *info;
1721
0
  struct elf_lm32_link_hash_table *htab;
1722
0
  struct elf_dyn_relocs *p;
1723
1724
0
  if (h->root.type == bfd_link_hash_indirect)
1725
0
    return true;
1726
1727
0
  info = (struct bfd_link_info *) inf;
1728
0
  htab = lm32_elf_hash_table (info);
1729
0
  if (htab == NULL)
1730
0
    return false;
1731
1732
0
  if (htab->root.dynamic_sections_created
1733
0
      && h->plt.refcount > 0)
1734
0
    {
1735
      /* Make sure this symbol is output as a dynamic symbol.
1736
   Undefined weak syms won't yet be marked as dynamic.  */
1737
0
      if (h->dynindx == -1
1738
0
    && !h->forced_local)
1739
0
  {
1740
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1741
0
      return false;
1742
0
  }
1743
1744
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1745
0
  {
1746
0
    asection *s = htab->root.splt;
1747
1748
    /* If this is the first .plt entry, make room for the special
1749
       first entry.  */
1750
0
    if (s->size == 0)
1751
0
      s->size += PLT_ENTRY_SIZE;
1752
1753
0
    h->plt.offset = s->size;
1754
1755
    /* If this symbol is not defined in a regular file, and we are
1756
       not generating a shared library, then set the symbol to this
1757
       location in the .plt.  This is required to make function
1758
       pointers compare as equal between the normal executable and
1759
       the shared library.  */
1760
0
    if (! bfd_link_pic (info)
1761
0
        && !h->def_regular)
1762
0
      {
1763
0
        h->root.u.def.section = s;
1764
0
        h->root.u.def.value = h->plt.offset;
1765
0
      }
1766
1767
    /* Make room for this entry.  */
1768
0
    s->size += PLT_ENTRY_SIZE;
1769
1770
    /* We also need to make an entry in the .got.plt section, which
1771
       will be placed in the .got section by the linker script.  */
1772
0
    htab->root.sgotplt->size += 4;
1773
1774
    /* We also need to make an entry in the .rel.plt section.  */
1775
0
    htab->root.srelplt->size += sizeof (Elf32_External_Rela);
1776
0
  }
1777
0
      else
1778
0
  {
1779
0
    h->plt.offset = (bfd_vma) -1;
1780
0
    h->needs_plt = 0;
1781
0
  }
1782
0
    }
1783
0
  else
1784
0
    {
1785
0
      h->plt.offset = (bfd_vma) -1;
1786
0
      h->needs_plt = 0;
1787
0
    }
1788
1789
0
  if (h->got.refcount > 0)
1790
0
    {
1791
0
      asection *s;
1792
0
      bool dyn;
1793
1794
      /* Make sure this symbol is output as a dynamic symbol.
1795
   Undefined weak syms won't yet be marked as dynamic.  */
1796
0
      if (h->dynindx == -1
1797
0
    && !h->forced_local)
1798
0
  {
1799
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1800
0
      return false;
1801
0
  }
1802
1803
0
      s = htab->root.sgot;
1804
1805
0
      h->got.offset = s->size;
1806
0
      s->size += 4;
1807
0
      dyn = htab->root.dynamic_sections_created;
1808
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1809
0
  htab->root.srelgot->size += sizeof (Elf32_External_Rela);
1810
0
    }
1811
0
  else
1812
0
    h->got.offset = (bfd_vma) -1;
1813
1814
0
  if (h->dyn_relocs == NULL)
1815
0
    return true;
1816
1817
  /* In the shared -Bsymbolic case, discard space allocated for
1818
     dynamic pc-relative relocs against symbols which turn out to be
1819
     defined in regular objects.  For the normal shared case, discard
1820
     space for pc-relative relocs that have become local due to symbol
1821
     visibility changes.  */
1822
1823
0
  if (bfd_link_pic (info))
1824
0
    {
1825
0
      if (h->def_regular
1826
0
    && (h->forced_local
1827
0
        || info->symbolic))
1828
0
  {
1829
0
    struct elf_dyn_relocs **pp;
1830
1831
0
    for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
1832
0
      {
1833
0
        p->count -= p->pc_count;
1834
0
        p->pc_count = 0;
1835
0
        if (p->count == 0)
1836
0
    *pp = p->next;
1837
0
        else
1838
0
    pp = &p->next;
1839
0
      }
1840
0
  }
1841
1842
      /* Also discard relocs on undefined weak syms with non-default
1843
   visibility.  */
1844
0
      if (h->dyn_relocs != NULL
1845
0
    && h->root.type == bfd_link_hash_undefweak)
1846
0
  {
1847
0
    if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1848
0
      h->dyn_relocs = NULL;
1849
1850
    /* Make sure undefined weak symbols are output as a dynamic
1851
       symbol in PIEs.  */
1852
0
    else if (h->dynindx == -1
1853
0
       && !h->forced_local)
1854
0
      {
1855
0
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
1856
0
    return false;
1857
0
      }
1858
0
  }
1859
0
    }
1860
0
  else
1861
0
    {
1862
      /* For the non-shared case, discard space for relocs against
1863
   symbols which turn out to need copy relocs or are not
1864
   dynamic.  */
1865
1866
0
      if (!h->non_got_ref
1867
0
    && ((h->def_dynamic
1868
0
         && !h->def_regular)
1869
0
        || (htab->root.dynamic_sections_created
1870
0
      && (h->root.type == bfd_link_hash_undefweak
1871
0
          || h->root.type == bfd_link_hash_undefined))))
1872
0
  {
1873
    /* Make sure this symbol is output as a dynamic symbol.
1874
       Undefined weak syms won't yet be marked as dynamic.  */
1875
0
    if (h->dynindx == -1
1876
0
        && !h->forced_local)
1877
0
      {
1878
0
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
1879
0
    return false;
1880
0
      }
1881
1882
    /* If that succeeded, we know we'll be keeping all the
1883
       relocs.  */
1884
0
    if (h->dynindx != -1)
1885
0
      goto keep;
1886
0
  }
1887
1888
0
      h->dyn_relocs = NULL;
1889
1890
0
    keep: ;
1891
0
    }
1892
1893
  /* Finally, allocate space.  */
1894
0
  for (p = h->dyn_relocs; p != NULL; p = p->next)
1895
0
    {
1896
0
      asection *sreloc = elf_section_data (p->sec)->sreloc;
1897
0
      sreloc->size += p->count * sizeof (Elf32_External_Rela);
1898
0
    }
1899
1900
0
  return true;
1901
0
}
1902
1903
/* Set the sizes of the dynamic sections.  */
1904
1905
static bool
1906
lm32_elf_late_size_sections (bfd *output_bfd,
1907
           struct bfd_link_info *info)
1908
0
{
1909
0
  struct elf_lm32_link_hash_table *htab;
1910
0
  bfd *dynobj;
1911
0
  asection *s;
1912
0
  bool relocs;
1913
0
  bfd *ibfd;
1914
1915
0
  htab = lm32_elf_hash_table (info);
1916
0
  if (htab == NULL)
1917
0
    return false;
1918
1919
0
  dynobj = htab->root.dynobj;
1920
0
  if (dynobj == NULL)
1921
0
    return true;
1922
1923
0
  if (htab->root.dynamic_sections_created)
1924
0
    {
1925
      /* Set the contents of the .interp section to the interpreter.  */
1926
0
      if (bfd_link_executable (info) && !info->nointerp)
1927
0
  {
1928
0
    s = bfd_get_linker_section (dynobj, ".interp");
1929
0
    BFD_ASSERT (s != NULL);
1930
0
    s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1931
0
    s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1932
0
    s->alloced = 1;
1933
0
  }
1934
0
    }
1935
1936
  /* Set up .got offsets for local syms, and space for local dynamic
1937
     relocs.  */
1938
0
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1939
0
    {
1940
0
      bfd_signed_vma *local_got;
1941
0
      bfd_signed_vma *end_local_got;
1942
0
      bfd_size_type locsymcount;
1943
0
      Elf_Internal_Shdr *symtab_hdr;
1944
0
      asection *srel;
1945
1946
0
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
1947
0
  continue;
1948
1949
0
      for (s = ibfd->sections; s != NULL; s = s->next)
1950
0
  {
1951
0
    struct elf_dyn_relocs *p;
1952
1953
0
    for (p = ((struct elf_dyn_relocs *)
1954
0
        elf_section_data (s)->local_dynrel);
1955
0
         p != NULL;
1956
0
         p = p->next)
1957
0
      {
1958
0
        if (! bfd_is_abs_section (p->sec)
1959
0
      && bfd_is_abs_section (p->sec->output_section))
1960
0
    {
1961
      /* Input section has been discarded, either because
1962
         it is a copy of a linkonce section or due to
1963
         linker script /DISCARD/, so we'll be discarding
1964
         the relocs too.  */
1965
0
    }
1966
0
        else if (p->count != 0)
1967
0
    {
1968
0
      srel = elf_section_data (p->sec)->sreloc;
1969
0
      srel->size += p->count * sizeof (Elf32_External_Rela);
1970
0
      if ((p->sec->output_section->flags & SEC_READONLY) != 0)
1971
0
        info->flags |= DF_TEXTREL;
1972
0
    }
1973
0
      }
1974
0
  }
1975
1976
0
      local_got = elf_local_got_refcounts (ibfd);
1977
0
      if (!local_got)
1978
0
  continue;
1979
1980
0
      symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
1981
0
      locsymcount = symtab_hdr->sh_info;
1982
0
      end_local_got = local_got + locsymcount;
1983
0
      s = htab->root.sgot;
1984
0
      srel = htab->root.srelgot;
1985
0
      for (; local_got < end_local_got; ++local_got)
1986
0
  {
1987
0
    if (*local_got > 0)
1988
0
      {
1989
0
        *local_got = s->size;
1990
0
        s->size += 4;
1991
0
        if (bfd_link_pic (info))
1992
0
    srel->size += sizeof (Elf32_External_Rela);
1993
0
      }
1994
0
    else
1995
0
      *local_got = (bfd_vma) -1;
1996
0
  }
1997
0
    }
1998
1999
  /* Allocate global sym .plt and .got entries, and space for global
2000
     sym dynamic relocs.  */
2001
0
  elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2002
2003
  /* We now have determined the sizes of the various dynamic sections.
2004
     Allocate memory for them.  */
2005
0
  relocs = false;
2006
0
  for (s = dynobj->sections; s != NULL; s = s->next)
2007
0
    {
2008
0
      if ((s->flags & SEC_LINKER_CREATED) == 0)
2009
0
  continue;
2010
2011
0
      if (s == htab->root.splt
2012
0
    || s == htab->root.sgot
2013
0
    || s == htab->root.sgotplt
2014
0
    || s == htab->sdynbss)
2015
0
  {
2016
    /* Strip this section if we don't need it; see the
2017
       comment below.  */
2018
0
  }
2019
0
      else if (startswith (bfd_section_name (s), ".rela"))
2020
0
  {
2021
0
    if (s->size != 0 && s != htab->root.srelplt)
2022
0
      relocs = true;
2023
2024
    /* We use the reloc_count field as a counter if we need
2025
       to copy relocs into the output file.  */
2026
0
    s->reloc_count = 0;
2027
0
  }
2028
0
      else
2029
  /* It's not one of our sections, so don't allocate space.  */
2030
0
  continue;
2031
2032
0
      if (s->size == 0)
2033
0
  {
2034
    /* If we don't need this section, strip it from the
2035
       output file.  This is mostly to handle .rela.bss and
2036
       .rela.plt.  We must create both sections in
2037
       create_dynamic_sections, because they must be created
2038
       before the linker maps input sections to output
2039
       sections.  The linker does that before
2040
       adjust_dynamic_symbol is called, and it is that
2041
       function which decides whether anything needs to go
2042
       into these sections.  */
2043
0
    s->flags |= SEC_EXCLUDE;
2044
0
    continue;
2045
0
  }
2046
2047
0
      if ((s->flags & SEC_HAS_CONTENTS) == 0)
2048
0
  continue;
2049
2050
      /* Allocate memory for the section contents.  We use bfd_zalloc
2051
   here in case unused entries are not reclaimed before the
2052
   section's contents are written out.  This should not happen,
2053
   but this way if it does, we get a R_LM32_NONE reloc instead
2054
   of garbage.  */
2055
0
      s->contents = bfd_zalloc (dynobj, s->size);
2056
0
      if (s->contents == NULL)
2057
0
  return false;
2058
0
      s->alloced = 1;
2059
0
    }
2060
2061
0
  if (!_bfd_elf_add_dynamic_tags (output_bfd, info, relocs))
2062
0
    return false;
2063
2064
  /* Allocate .rofixup section.  */
2065
0
  if (IS_FDPIC (output_bfd))
2066
0
    {
2067
0
      struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2068
0
      int rgot_weak_count = 0;
2069
0
      int r32_count = 0;
2070
0
      int rgot_count ATTRIBUTE_UNUSED = 0;
2071
      /* Look for deleted sections.  */
2072
0
      for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2073
0
  {
2074
0
    for (s = ibfd->sections; s != NULL; s = s->next)
2075
0
      {
2076
0
        if (s->reloc_count)
2077
0
    {
2078
      /* Count relocs that need .rofixup entires.  */
2079
0
      Elf_Internal_Rela *internal_relocs, *end;
2080
0
      internal_relocs = elf_section_data (s)->relocs;
2081
0
      if (internal_relocs == NULL)
2082
0
        internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, false));
2083
0
      if (internal_relocs != NULL)
2084
0
        {
2085
0
          end = internal_relocs + s->reloc_count;
2086
0
          while (internal_relocs < end)
2087
0
      {
2088
0
        Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2089
0
        struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
2090
0
        unsigned long r_symndx;
2091
0
        struct elf_link_hash_entry *h;
2092
2093
0
        symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2094
0
        sym_hashes = elf_sym_hashes (ibfd);
2095
0
        r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2096
0
        h = NULL;
2097
0
        if (r_symndx < symtab_hdr->sh_info)
2098
0
          {
2099
0
          }
2100
0
        else
2101
0
          {
2102
0
            h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2103
0
            while (h->root.type == bfd_link_hash_indirect
2104
0
             || h->root.type == bfd_link_hash_warning)
2105
0
        h = (struct elf_link_hash_entry *) h->root.u.i.link;
2106
0
            }
2107
2108
        /* Don't generate entries for weak symbols.  */
2109
0
        if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2110
0
          {
2111
0
            if (!discarded_section (s) && !((bfd_section_flags (s) & SEC_ALLOC) == 0))
2112
0
        {
2113
0
          switch (ELF32_R_TYPE (internal_relocs->r_info))
2114
0
            {
2115
0
            case R_LM32_32:
2116
0
              r32_count++;
2117
0
              break;
2118
0
            case R_LM32_16_GOT:
2119
0
              rgot_count++;
2120
0
              break;
2121
0
            }
2122
0
        }
2123
0
          }
2124
0
        else
2125
0
          {
2126
0
            struct weak_symbol_list *current, *new_entry;
2127
            /* Is this symbol already in the list?  */
2128
0
            for (current = list_start; current; current = current->next)
2129
0
        {
2130
0
          if (!strcmp (current->name, h->root.root.string))
2131
0
            break;
2132
0
        }
2133
0
            if (!current && !discarded_section (s) && (bfd_section_flags (s) & SEC_ALLOC))
2134
0
        {
2135
          /* Will this have an entry in the GOT.  */
2136
0
          if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2137
0
            {
2138
              /* Create a new entry.  */
2139
0
              new_entry = malloc (sizeof (struct weak_symbol_list));
2140
0
              if (!new_entry)
2141
0
          return false;
2142
0
              new_entry->name = h->root.root.string;
2143
0
              new_entry->next = NULL;
2144
              /* Add to list */
2145
0
              if (list_start == NULL)
2146
0
          {
2147
0
            list_start = new_entry;
2148
0
            list_end = new_entry;
2149
0
          }
2150
0
              else
2151
0
          {
2152
0
            list_end->next = new_entry;
2153
0
            list_end = new_entry;
2154
0
          }
2155
              /* Increase count of undefined weak symbols in the got.  */
2156
0
              rgot_weak_count++;
2157
0
            }
2158
0
        }
2159
0
          }
2160
0
        internal_relocs++;
2161
0
      }
2162
0
        }
2163
0
      else
2164
0
        return false;
2165
0
    }
2166
0
      }
2167
0
  }
2168
      /* Free list.  */
2169
0
      while (list_start)
2170
0
  {
2171
0
    list_end = list_start->next;
2172
0
    free (list_start);
2173
0
    list_start = list_end;
2174
0
  }
2175
2176
      /* Size sections.  */
2177
0
      lm32fdpic_fixup32_section (info)->size
2178
0
  = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
2179
0
      if (lm32fdpic_fixup32_section (info)->size == 0)
2180
0
  lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2181
0
      else
2182
0
  {
2183
0
    lm32fdpic_fixup32_section (info)->contents =
2184
0
       bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2185
0
    if (lm32fdpic_fixup32_section (info)->contents == NULL)
2186
0
      return false;
2187
0
    lm32fdpic_fixup32_section (info)->alloced = 1;
2188
0
  }
2189
0
    }
2190
2191
0
  return true;
2192
0
}
2193
2194
/* Create dynamic sections when linking against a dynamic object.  */
2195
2196
static bool
2197
lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2198
0
{
2199
0
  struct elf_lm32_link_hash_table *htab;
2200
0
  flagword flags, pltflags;
2201
0
  asection *s;
2202
0
  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2203
0
  int ptralign = 2; /* 32bit */
2204
2205
0
  htab = lm32_elf_hash_table (info);
2206
0
  if (htab == NULL)
2207
0
    return false;
2208
2209
  /* Make sure we have a GOT - For the case where we have a dynamic object
2210
     but none of the relocs in check_relocs */
2211
0
  if (!_bfd_elf_create_got_section (abfd, info))
2212
0
    return false;
2213
0
  if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2214
0
    {
2215
0
      if (! create_rofixup_section (abfd, info))
2216
0
  return false;
2217
0
    }
2218
2219
  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2220
     .rel[a].bss sections.  */
2221
0
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2222
0
     | SEC_LINKER_CREATED);
2223
2224
0
  pltflags = flags;
2225
0
  pltflags |= SEC_CODE;
2226
0
  if (bed->plt_not_loaded)
2227
0
    pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2228
0
  if (bed->plt_readonly)
2229
0
    pltflags |= SEC_READONLY;
2230
2231
0
  s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2232
0
  htab->root.splt = s;
2233
0
  if (s == NULL
2234
0
      || !bfd_set_section_alignment (s, bed->plt_alignment))
2235
0
    return false;
2236
2237
0
  if (bed->want_plt_sym)
2238
0
    {
2239
      /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2240
   .plt section.  */
2241
0
      struct bfd_link_hash_entry *bh = NULL;
2242
0
      struct elf_link_hash_entry *h;
2243
2244
0
      if (! (_bfd_generic_link_add_one_symbol
2245
0
       (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2246
0
        (bfd_vma) 0, NULL, false,
2247
0
        get_elf_backend_data (abfd)->collect, &bh)))
2248
0
  return false;
2249
0
      h = (struct elf_link_hash_entry *) bh;
2250
0
      h->def_regular = 1;
2251
0
      h->type = STT_OBJECT;
2252
0
      htab->root.hplt = h;
2253
2254
0
      if (bfd_link_pic (info)
2255
0
    && ! bfd_elf_link_record_dynamic_symbol (info, h))
2256
0
  return false;
2257
0
    }
2258
2259
0
  s = bfd_make_section_anyway_with_flags (abfd,
2260
0
            bed->default_use_rela_p
2261
0
            ? ".rela.plt" : ".rel.plt",
2262
0
            flags | SEC_READONLY);
2263
0
  htab->root.srelplt = s;
2264
0
  if (s == NULL
2265
0
      || !bfd_set_section_alignment (s, ptralign))
2266
0
    return false;
2267
2268
0
  if (htab->root.sgot == NULL
2269
0
      && !_bfd_elf_create_got_section (abfd, info))
2270
0
    return false;
2271
2272
0
  if (bed->want_dynbss)
2273
0
    {
2274
      /* The .dynbss section is a place to put symbols which are defined
2275
   by dynamic objects, are referenced by regular objects, and are
2276
   not functions.  We must allocate space for them in the process
2277
   image and use a R_*_COPY reloc to tell the dynamic linker to
2278
   initialize them at run time.  The linker script puts the .dynbss
2279
   section into the .bss section of the final image.  */
2280
0
      s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2281
0
                SEC_ALLOC | SEC_LINKER_CREATED);
2282
0
      htab->sdynbss = s;
2283
0
      if (s == NULL)
2284
0
  return false;
2285
      /* The .rel[a].bss section holds copy relocs.  This section is not
2286
   normally needed.  We need to create it here, though, so that the
2287
   linker will map it to an output section.  We can't just create it
2288
   only if we need it, because we will not know whether we need it
2289
   until we have seen all the input files, and the first time the
2290
   main linker code calls BFD after examining all the input files
2291
   (size_dynamic_sections) the input sections have already been
2292
   mapped to the output sections.  If the section turns out not to
2293
   be needed, we can discard it later.  We will never need this
2294
   section when generating a shared object, since they do not use
2295
   copy relocs.  */
2296
0
      if (! bfd_link_pic (info))
2297
0
  {
2298
0
    s = bfd_make_section_anyway_with_flags (abfd,
2299
0
              (bed->default_use_rela_p
2300
0
               ? ".rela.bss" : ".rel.bss"),
2301
0
              flags | SEC_READONLY);
2302
0
    htab->srelbss = s;
2303
0
    if (s == NULL
2304
0
        || !bfd_set_section_alignment (s, ptralign))
2305
0
      return false;
2306
0
  }
2307
0
    }
2308
2309
0
  return true;
2310
0
}
2311
2312
static bool
2313
lm32_elf_early_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2314
0
{
2315
0
  if (!bfd_link_relocatable (info))
2316
0
    {
2317
0
      if (!bfd_elf_stack_segment_size (output_bfd, info,
2318
0
               "__stacksize", DEFAULT_STACK_SIZE))
2319
0
  return false;
2320
2321
0
      asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
2322
0
      if (sec)
2323
0
  sec->size = info->stacksize >= 0 ? info->stacksize : 0;
2324
0
    }
2325
2326
0
  return true;
2327
0
}
2328
2329
static bool
2330
lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2331
0
{
2332
0
  unsigned i;
2333
2334
0
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2335
0
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2336
0
    return true;
2337
2338
0
  if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
2339
0
    return false;
2340
2341
0
  if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
2342
0
      || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
2343
0
    return true;
2344
2345
  /* Copy the stack size.  */
2346
0
  for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2347
0
    if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2348
0
      {
2349
0
  Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2350
2351
0
  for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2352
0
    if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2353
0
      {
2354
0
        memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2355
2356
        /* Rewrite the phdrs, since we're only called after they were first written.  */
2357
0
        if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2358
0
          ->s->sizeof_ehdr, SEEK_SET) != 0
2359
0
      || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2360
0
             elf_elfheader (obfd)->e_phnum) != 0)
2361
0
    return false;
2362
0
        break;
2363
0
      }
2364
2365
0
  break;
2366
0
      }
2367
2368
0
  return true;
2369
0
}
2370
2371
2372
#define ELF_ARCH    bfd_arch_lm32
2373
#define ELF_TARGET_ID   LM32_ELF_DATA
2374
#define ELF_MACHINE_CODE  EM_LATTICEMICO32
2375
#define ELF_MAXPAGESIZE   0x1000
2376
2377
#define TARGET_BIG_SYM    lm32_elf32_vec
2378
#define TARGET_BIG_NAME   "elf32-lm32"
2379
2380
#define bfd_elf32_bfd_reloc_type_lookup   lm32_reloc_type_lookup
2381
#define bfd_elf32_bfd_reloc_name_lookup   lm32_reloc_name_lookup
2382
#define elf_info_to_howto     lm32_info_to_howto_rela
2383
#define elf_info_to_howto_rel     NULL
2384
#define elf_backend_rela_normal     1
2385
#define elf_backend_object_p      lm32_elf_object_p
2386
#define elf_backend_final_write_processing  lm32_elf_final_write_processing
2387
#define elf_backend_stack_align     8
2388
#define elf_backend_can_gc_sections   1
2389
#define elf_backend_can_refcount    1
2390
#define elf_backend_gc_mark_hook    lm32_elf_gc_mark_hook
2391
#define elf_backend_plt_readonly    1
2392
#define elf_backend_want_got_plt    1
2393
#define elf_backend_want_plt_sym    0
2394
#define elf_backend_got_header_size   12
2395
#define elf_backend_dtrel_excludes_plt    1
2396
#define bfd_elf32_bfd_link_hash_table_create  lm32_elf_link_hash_table_create
2397
#define elf_backend_check_relocs    lm32_elf_check_relocs
2398
#define elf_backend_reloc_type_class    lm32_elf_reloc_type_class
2399
#define elf_backend_late_size_sections    lm32_elf_late_size_sections
2400
#define elf_backend_omit_section_dynsym   _bfd_elf_omit_section_dynsym_all
2401
#define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2402
#define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2403
#define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2404
#define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2405
#define elf_backend_relocate_section    lm32_elf_relocate_section
2406
2407
#include "elf32-target.h"
2408
2409
#undef  ELF_MAXPAGESIZE
2410
#define ELF_MAXPAGESIZE   0x4000
2411
2412
2413
#undef  TARGET_BIG_SYM
2414
#define TARGET_BIG_SYM    lm32_elf32_fdpic_vec
2415
#undef  TARGET_BIG_NAME
2416
#define TARGET_BIG_NAME   "elf32-lm32fdpic"
2417
#undef  elf32_bed
2418
#define elf32_bed   elf32_lm32fdpic_bed
2419
2420
#undef  elf_backend_early_size_sections
2421
#define elf_backend_early_size_sections   lm32_elf_early_size_sections
2422
#undef  bfd_elf32_bfd_copy_private_bfd_data
2423
#define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2424
2425
#include "elf32-target.h"