Coverage Report

Created: 2026-09-14 08:07

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/binutils-gdb/bfd/elf32-lm32.c
Line
Count
Source
1
/* Lattice Mico32-specific support for 32-bit ELF
2
   Copyright (C) 2008-2026 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_HI16_GOTOFF,  R_LM32_GOTOFF_HI16 },
446
  { BFD_RELOC_LO16_GOTOFF,  R_LM32_GOTOFF_LO16 },
447
  { BFD_RELOC_COPY,   R_LM32_COPY },
448
  { BFD_RELOC_GLOB_DAT,   R_LM32_GLOB_DAT },
449
  { BFD_RELOC_JMP_SLOT,   R_LM32_JMP_SLOT },
450
  { BFD_RELOC_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
111
{
489
111
  unsigned int r_type;
490
491
111
  r_type = ELF32_R_TYPE (dst->r_info);
492
111
  if (r_type >= (unsigned int) R_LM32_max)
493
7
    {
494
      /* xgettext:c-format */
495
7
      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
496
7
        abfd, r_type);
497
7
      bfd_set_error (bfd_error_bad_value);
498
7
      return false;
499
7
    }
500
104
  cache_ptr->howto = &lm32_elf_howto_table[r_type];
501
104
  return true;
502
111
}
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
85
{
509
85
  return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32);
510
85
}
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
2
{
517
2
  elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32;
518
2
  elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH;
519
2
  switch (bfd_get_mach (abfd))
520
2
    {
521
2
      case bfd_mach_lm32:
522
2
  elf_elfheader (abfd)->e_flags |= E_LM32_MACH;
523
2
  break;
524
0
      default:
525
0
  abort ();
526
2
    }
527
2
  return _bfd_elf_final_write_processing (abfd);
528
2
}
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 (struct bfd_link_info *info,
719
         bfd *input_bfd,
720
         asection *input_section,
721
         bfd_byte *contents,
722
         Elf_Internal_Rela *relocs,
723
         Elf_Internal_Sym *local_syms,
724
         asection **local_sections)
725
0
{
726
0
  Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_bfd);
727
0
  struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
728
0
  Elf_Internal_Rela *rel, *relend;
729
0
  struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info);
730
0
  bfd_vma *local_got_offsets;
731
0
  asection *sgot;
732
733
0
  if (htab == NULL)
734
0
    return false;
735
736
0
  local_got_offsets = elf_local_got_offsets (input_bfd);
737
738
0
  sgot = htab->root.sgot;
739
740
0
  symtab_hdr = &elf_symtab_hdr (input_bfd);
741
0
  sym_hashes = elf_sym_hashes (input_bfd);
742
743
0
  rel = relocs;
744
0
  relend = relocs + input_section->reloc_count;
745
0
  for (; rel < relend; rel++)
746
0
    {
747
0
      reloc_howto_type *howto;
748
0
      unsigned int r_type;
749
0
      unsigned long r_symndx;
750
0
      Elf_Internal_Sym *sym;
751
0
      asection *sec;
752
0
      struct elf_link_hash_entry *h;
753
0
      bfd_vma relocation;
754
0
      bfd_vma gp;
755
0
      bfd_reloc_status_type r;
756
0
      const char *name = NULL;
757
758
0
      r_symndx = ELF32_R_SYM (rel->r_info);
759
0
      r_type = ELF32_R_TYPE (rel->r_info);
760
761
0
      if (r_type == R_LM32_GNU_VTENTRY
762
0
    || r_type == R_LM32_GNU_VTINHERIT )
763
0
  continue;
764
765
0
      h = NULL;
766
0
      sym = NULL;
767
0
      sec = NULL;
768
769
0
      howto = lm32_elf_howto_table + r_type;
770
771
0
      if (r_symndx < symtab_hdr->sh_info)
772
0
  {
773
    /* It's a local symbol.  */
774
0
    sym = local_syms + r_symndx;
775
0
    sec = local_sections[r_symndx];
776
0
    relocation = _bfd_elf_rela_local_sym (info->output_bfd,
777
0
            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, R_LM32_NONE,
798
0
           howto, 0, contents);
799
800
0
      if (bfd_link_relocatable (info))
801
0
  {
802
    /* This is a relocatable link.  We don't have to change
803
       anything, unless the reloc is against a section symbol,
804
       in which case we have to adjust according to where the
805
       section symbol winds up in the output section.  */
806
0
    if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
807
0
      continue;
808
809
    /* If partial_inplace, we need to store any additional addend
810
       back in the section.  */
811
0
    if (! howto->partial_inplace)
812
0
      continue;
813
814
    /* Shouldn't reach here.  */
815
0
    abort ();
816
0
    r = bfd_reloc_ok;
817
0
  }
818
0
      else
819
0
  {
820
0
    switch (howto->type)
821
0
      {
822
0
      case R_LM32_GPREL16:
823
0
        if (!lm32_elf_assign_gp (info->output_bfd, &gp))
824
0
    r = bfd_reloc_dangerous;
825
0
        else
826
0
    {
827
0
      relocation = relocation + rel->r_addend - gp;
828
0
      rel->r_addend = 0;
829
0
      if ((signed)relocation < -32768 || (signed)relocation > 32767)
830
0
        r = bfd_reloc_outofrange;
831
0
      else
832
0
        {
833
0
          r = _bfd_final_link_relocate (howto, input_bfd,
834
0
                input_section, contents,
835
0
                rel->r_offset, relocation,
836
0
                rel->r_addend);
837
0
        }
838
0
    }
839
0
        break;
840
0
      case R_LM32_16_GOT:
841
        /* Relocation is to the entry for this symbol in the global
842
     offset table.  */
843
0
        BFD_ASSERT (sgot != NULL);
844
0
        if (h != NULL)
845
0
    {
846
0
      bool dyn;
847
0
      bfd_vma off;
848
849
0
      off = h->got.offset;
850
0
      BFD_ASSERT (off != (bfd_vma) -1);
851
852
0
      dyn = htab->root.dynamic_sections_created;
853
0
      if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
854
0
               bfd_link_pic (info),
855
0
               h)
856
0
          || (bfd_link_pic (info)
857
0
        && (info->symbolic
858
0
            || h->dynindx == -1
859
0
            || h->forced_local)
860
0
        && h->def_regular))
861
0
        {
862
          /* This is actually a static link, or it is a
863
       -Bsymbolic link and the symbol is defined
864
       locally, or the symbol was forced to be local
865
       because of a version file.  We must initialize
866
       this entry in the global offset table.  Since the
867
       offset must always be a multiple of 4, we use the
868
       least significant bit to record whether we have
869
       initialized it already.
870
871
       When doing a dynamic link, we create a .rela.got
872
       relocation entry to initialize the value.  This
873
       is done in the finish_dynamic_symbol routine.  */
874
0
          if ((off & 1) != 0)
875
0
      off &= ~1;
876
0
          else
877
0
      {
878
        /* Write entry in GOT */
879
0
        bfd_put_32 (info->output_bfd, relocation,
880
0
              sgot->contents + off);
881
        /* Create entry in .rofixup pointing to GOT entry.  */
882
0
         if (IS_FDPIC (info->output_bfd)
883
0
             && h->root.type != bfd_link_hash_undefweak)
884
0
           {
885
0
             _lm32fdpic_add_rofixup (info->output_bfd,
886
0
                   lm32fdpic_fixup32_section
887
0
              (info),
888
0
                   sgot->output_section->vma
889
0
              + sgot->output_offset
890
0
              + off);
891
0
           }
892
        /* Mark GOT entry as having been written.  */
893
0
        h->got.offset |= 1;
894
0
      }
895
0
        }
896
897
0
      relocation = sgot->output_offset + off;
898
0
    }
899
0
        else
900
0
    {
901
0
      bfd_vma off;
902
0
      bfd_byte *loc;
903
904
0
      BFD_ASSERT (local_got_offsets != NULL
905
0
            && local_got_offsets[r_symndx] != (bfd_vma) -1);
906
907
      /* Get offset into GOT table.  */
908
0
      off = local_got_offsets[r_symndx];
909
910
      /* The offset must always be a multiple of 4.  We use
911
         the least significant bit to record whether we have
912
         already processed this entry.  */
913
0
      if ((off & 1) != 0)
914
0
        off &= ~1;
915
0
      else
916
0
        {
917
          /* Write entry in GOT.  */
918
0
          bfd_put_32 (info->output_bfd, relocation,
919
0
          sgot->contents + off);
920
          /* Create entry in .rofixup pointing to GOT entry.  */
921
0
          if (IS_FDPIC (info->output_bfd))
922
0
      {
923
0
        _lm32fdpic_add_rofixup (info->output_bfd,
924
0
              lm32fdpic_fixup32_section
925
0
               (info),
926
0
              sgot->output_section->vma
927
0
               + sgot->output_offset
928
0
               + off);
929
0
      }
930
931
0
          if (bfd_link_pic (info))
932
0
      {
933
0
        asection *srelgot;
934
0
        Elf_Internal_Rela outrel;
935
936
        /* We need to generate a R_LM32_RELATIVE reloc
937
           for the dynamic linker.  */
938
0
        srelgot = htab->root.srelgot;
939
0
        BFD_ASSERT (srelgot != NULL);
940
941
0
        outrel.r_offset = (sgot->output_section->vma
942
0
               + sgot->output_offset
943
0
               + off);
944
0
        outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
945
0
        outrel.r_addend = relocation;
946
0
        loc = srelgot->contents;
947
0
        loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
948
0
        bfd_elf32_swap_reloca_out (info->output_bfd,
949
0
                 &outrel,loc);
950
0
        ++srelgot->reloc_count;
951
0
      }
952
953
0
          local_got_offsets[r_symndx] |= 1;
954
0
        }
955
956
957
0
      relocation = sgot->output_offset + off;
958
0
    }
959
960
        /* Addend should be zero.  */
961
0
        if (rel->r_addend != 0)
962
0
    _bfd_error_handler
963
0
      (_("internal error: addend should be zero for %s"),
964
0
       "R_LM32_16_GOT");
965
966
0
        r = _bfd_final_link_relocate (howto,
967
0
              input_bfd,
968
0
              input_section,
969
0
              contents,
970
0
              rel->r_offset,
971
0
              relocation,
972
0
              rel->r_addend);
973
0
        break;
974
975
0
      case R_LM32_GOTOFF_LO16:
976
0
      case R_LM32_GOTOFF_HI16:
977
        /* Relocation is offset from GOT.  */
978
0
        BFD_ASSERT (sgot != NULL);
979
0
        relocation -= sgot->output_section->vma;
980
        /* Account for sign-extension.  */
981
0
        if ((r_type == R_LM32_GOTOFF_HI16)
982
0
      && ((relocation + rel->r_addend) & 0x8000))
983
0
    rel->r_addend += 0x10000;
984
0
        r = _bfd_final_link_relocate (howto,
985
0
              input_bfd,
986
0
              input_section,
987
0
              contents,
988
0
              rel->r_offset,
989
0
              relocation,
990
0
              rel->r_addend);
991
0
        break;
992
993
0
      case R_LM32_32:
994
0
        if (IS_FDPIC (info->output_bfd))
995
0
    {
996
0
      if ((!h) || (h && h->root.type != bfd_link_hash_undefweak))
997
0
        {
998
          /* Only create .rofixup entries for relocs in loadable sections.  */
999
0
          if ((bfd_section_flags (input_section->output_section)
1000
0
        & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
1001
1002
0
      {
1003
        /* Check address to be modified is writable.  */
1004
0
        if (_lm32fdpic_osec_readonly_p (info->output_bfd,
1005
0
                input_section
1006
0
                 ->output_section))
1007
0
          {
1008
0
            info->callbacks->warning
1009
0
        (info,
1010
0
         _("cannot emit dynamic relocations in read-only section"),
1011
0
         name, input_bfd, input_section, rel->r_offset);
1012
0
             return false;
1013
0
          }
1014
        /* Create entry in .rofixup section.  */
1015
0
        _lm32fdpic_add_rofixup (info->output_bfd,
1016
0
              lm32fdpic_fixup32_section (info),
1017
0
              input_section->output_section->vma
1018
0
               + input_section->output_offset
1019
0
               + rel->r_offset);
1020
0
      }
1021
0
        }
1022
0
    }
1023
        /* Fall through.  */
1024
1025
0
      default:
1026
0
        r = _bfd_final_link_relocate (howto,
1027
0
              input_bfd,
1028
0
              input_section,
1029
0
              contents,
1030
0
              rel->r_offset,
1031
0
              relocation,
1032
0
              rel->r_addend);
1033
0
        break;
1034
0
      }
1035
0
  }
1036
1037
0
      if (r != bfd_reloc_ok)
1038
0
  {
1039
0
    const char *msg = NULL;
1040
0
    arelent bfd_reloc;
1041
1042
0
    if (! lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel))
1043
0
      continue;
1044
0
    howto = bfd_reloc.howto;
1045
1046
0
    if (h != NULL)
1047
0
      name = h->root.root.string;
1048
0
    else
1049
0
      {
1050
0
        name = (bfd_elf_string_from_elf_section
1051
0
          (input_bfd, symtab_hdr->sh_link, sym->st_name));
1052
0
        if (name == NULL || *name == '\0')
1053
0
    name = bfd_section_name (sec);
1054
0
      }
1055
1056
0
    switch (r)
1057
0
      {
1058
0
      case bfd_reloc_overflow:
1059
0
        if ((h != NULL)
1060
0
     && (h->root.type == bfd_link_hash_undefweak))
1061
0
    break;
1062
0
        (*info->callbacks->reloc_overflow)
1063
0
    (info, (h ? &h->root : NULL), name, howto->name,
1064
0
     (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1065
0
        break;
1066
1067
0
      case bfd_reloc_undefined:
1068
0
        (*info->callbacks->undefined_symbol)
1069
0
    (info, name, input_bfd, input_section, rel->r_offset, true);
1070
0
        break;
1071
1072
0
      case bfd_reloc_outofrange:
1073
0
        msg = _("internal error: out of range error");
1074
0
        goto common_error;
1075
1076
0
      case bfd_reloc_notsupported:
1077
0
        msg = _("internal error: unsupported relocation error");
1078
0
        goto common_error;
1079
1080
0
      case bfd_reloc_dangerous:
1081
0
        msg = _("internal error: dangerous error");
1082
0
        goto common_error;
1083
1084
0
      default:
1085
0
        msg = _("internal error: unknown error");
1086
        /* fall through */
1087
1088
0
      common_error:
1089
0
        (*info->callbacks->warning) (info, msg, name, input_bfd,
1090
0
             input_section, rel->r_offset);
1091
0
        break;
1092
0
      }
1093
0
  }
1094
0
    }
1095
1096
0
  return true;
1097
0
}
1098
1099
static asection *
1100
lm32_elf_gc_mark_hook (asection *sec,
1101
           struct bfd_link_info *info,
1102
           struct elf_reloc_cookie *cookie,
1103
           struct elf_link_hash_entry *h,
1104
           unsigned int symndx)
1105
0
{
1106
0
  if (h != NULL)
1107
0
    switch (ELF32_R_TYPE (cookie->rel->r_info))
1108
0
      {
1109
0
      case R_LM32_GNU_VTINHERIT:
1110
0
      case R_LM32_GNU_VTENTRY:
1111
0
  return NULL;
1112
0
      }
1113
1114
0
  return _bfd_elf_gc_mark_hook (sec, info, cookie, h, symndx);
1115
0
}
1116
1117
/* Look through the relocs for a section during the first phase.  */
1118
1119
static bool
1120
lm32_elf_check_relocs (bfd *abfd,
1121
           struct bfd_link_info *info,
1122
           asection *sec,
1123
           const Elf_Internal_Rela *relocs)
1124
0
{
1125
0
  Elf_Internal_Shdr *symtab_hdr;
1126
0
  struct elf_link_hash_entry **sym_hashes;
1127
0
  const Elf_Internal_Rela *rel;
1128
0
  const Elf_Internal_Rela *rel_end;
1129
0
  struct elf_lm32_link_hash_table *htab;
1130
0
  bfd *dynobj;
1131
1132
0
  if (bfd_link_relocatable (info))
1133
0
    return true;
1134
1135
0
  symtab_hdr = &elf_symtab_hdr (abfd);
1136
0
  sym_hashes = elf_sym_hashes (abfd);
1137
1138
0
  htab = lm32_elf_hash_table (info);
1139
0
  if (htab == NULL)
1140
0
    return false;
1141
1142
0
  dynobj = htab->root.dynobj;
1143
1144
0
  rel_end = relocs + sec->reloc_count;
1145
0
  for (rel = relocs; rel < rel_end; rel++)
1146
0
    {
1147
0
      int r_type;
1148
0
      struct elf_link_hash_entry *h;
1149
0
      unsigned long r_symndx;
1150
1151
0
      r_symndx = ELF32_R_SYM (rel->r_info);
1152
0
      r_type = ELF32_R_TYPE (rel->r_info);
1153
0
      if (r_symndx < symtab_hdr->sh_info)
1154
0
  h = NULL;
1155
0
      else
1156
0
  {
1157
0
    h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1158
0
    while (h->root.type == bfd_link_hash_indirect
1159
0
     || h->root.type == bfd_link_hash_warning)
1160
0
      h = (struct elf_link_hash_entry *) h->root.u.i.link;
1161
0
  }
1162
1163
      /* Some relocs require a global offset table.  */
1164
0
      if (htab->root.sgot == NULL)
1165
0
  {
1166
0
    switch (r_type)
1167
0
      {
1168
0
      case R_LM32_16_GOT:
1169
0
      case R_LM32_GOTOFF_HI16:
1170
0
      case R_LM32_GOTOFF_LO16:
1171
0
        if (dynobj == NULL)
1172
0
    {
1173
0
      dynobj = _bfd_elf_link_dynobj (info);
1174
0
      if (dynobj == NULL)
1175
0
        return false;
1176
0
    }
1177
0
        if (!_bfd_elf_create_got_section (dynobj, info))
1178
0
    return false;
1179
0
        break;
1180
0
      }
1181
0
  }
1182
1183
      /* Some relocs require a rofixup table. */
1184
0
      if (IS_FDPIC (abfd))
1185
0
  {
1186
0
    switch (r_type)
1187
0
      {
1188
0
      case R_LM32_32:
1189
        /* FDPIC requires a GOT if there is a .rofixup section
1190
     (Normal ELF doesn't). */
1191
0
        if (dynobj == NULL)
1192
0
    {
1193
0
      dynobj = _bfd_elf_link_dynobj (info);
1194
0
      if (dynobj == NULL)
1195
0
        return false;
1196
0
    }
1197
0
        if (!_bfd_elf_create_got_section (dynobj, info))
1198
0
    return false;
1199
        /* Create .rofixup section */
1200
0
        if (htab->sfixup32 == NULL)
1201
0
    {
1202
0
      if (! create_rofixup_section (dynobj, info))
1203
0
        return false;
1204
0
    }
1205
0
        break;
1206
0
      case R_LM32_16_GOT:
1207
0
      case R_LM32_GOTOFF_HI16:
1208
0
      case R_LM32_GOTOFF_LO16:
1209
        /* Create .rofixup section.  */
1210
0
        if (htab->sfixup32 == NULL)
1211
0
    {
1212
0
      if (dynobj == NULL)
1213
0
        {
1214
0
          dynobj = _bfd_elf_link_dynobj (info);
1215
0
          if (dynobj == NULL)
1216
0
      return false;
1217
0
        }
1218
0
      if (! create_rofixup_section (dynobj, info))
1219
0
        return false;
1220
0
    }
1221
0
        break;
1222
0
      }
1223
0
  }
1224
1225
0
      switch (r_type)
1226
0
  {
1227
0
  case R_LM32_16_GOT:
1228
0
    if (h != NULL)
1229
0
      h->got.refcount += 1;
1230
0
    else
1231
0
      {
1232
0
        bfd_signed_vma *local_got_refcounts;
1233
1234
        /* This is a global offset table entry for a local symbol.  */
1235
0
        local_got_refcounts = elf_local_got_refcounts (abfd);
1236
0
        if (local_got_refcounts == NULL)
1237
0
    {
1238
0
      bfd_size_type size;
1239
1240
0
      size = symtab_hdr->sh_info;
1241
0
      size *= sizeof (bfd_signed_vma);
1242
0
      local_got_refcounts = bfd_zalloc (abfd, size);
1243
0
      if (local_got_refcounts == NULL)
1244
0
        return false;
1245
0
      elf_local_got_refcounts (abfd) = local_got_refcounts;
1246
0
    }
1247
0
        local_got_refcounts[r_symndx] += 1;
1248
0
      }
1249
0
    break;
1250
1251
  /* This relocation describes the C++ object vtable hierarchy.
1252
     Reconstruct it for later use during GC.  */
1253
0
  case R_LM32_GNU_VTINHERIT:
1254
0
    if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1255
0
      return false;
1256
0
    break;
1257
1258
  /* This relocation describes which C++ vtable entries are actually
1259
     used.  Record for later use during GC.  */
1260
0
  case R_LM32_GNU_VTENTRY:
1261
0
    if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1262
0
      return false;
1263
0
    break;
1264
1265
0
  }
1266
0
    }
1267
1268
0
  return true;
1269
0
}
1270
1271
/* Finish up the dynamic sections.  */
1272
1273
static bool
1274
lm32_elf_finish_dynamic_sections (struct bfd_link_info *info,
1275
          bfd_byte *buf ATTRIBUTE_UNUSED)
1276
0
{
1277
0
  struct elf_lm32_link_hash_table *htab;
1278
0
  bfd *dynobj;
1279
0
  asection *sdyn;
1280
0
  asection *sgot;
1281
1282
0
  htab = lm32_elf_hash_table (info);
1283
0
  if (htab == NULL)
1284
0
    return false;
1285
1286
0
  dynobj = htab->root.dynobj;
1287
1288
0
  sgot = htab->root.sgotplt;
1289
0
  sdyn = bfd_get_linker_section (dynobj, ".dynamic");
1290
1291
0
  if (htab->root.dynamic_sections_created)
1292
0
    {
1293
0
      asection *splt;
1294
0
      Elf32_External_Dyn *dyncon, *dynconend;
1295
1296
0
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
1297
1298
0
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
1299
0
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1300
1301
0
      for (; dyncon < dynconend; dyncon++)
1302
0
  {
1303
0
    Elf_Internal_Dyn dyn;
1304
0
    asection *s;
1305
1306
0
    bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1307
1308
0
    switch (dyn.d_tag)
1309
0
      {
1310
0
      default:
1311
0
        break;
1312
1313
0
      case DT_PLTGOT:
1314
0
        s = htab->root.sgotplt;
1315
0
        goto get_vma;
1316
0
      case DT_JMPREL:
1317
0
        s = htab->root.srelplt;
1318
0
      get_vma:
1319
0
        dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1320
0
        bfd_elf32_swap_dyn_out (info->output_bfd, &dyn, dyncon);
1321
0
        break;
1322
1323
0
      case DT_PLTRELSZ:
1324
0
        s = htab->root.srelplt;
1325
0
        dyn.d_un.d_val = s->size;
1326
0
        bfd_elf32_swap_dyn_out (info->output_bfd, &dyn, dyncon);
1327
0
        break;
1328
0
      }
1329
0
  }
1330
1331
      /* Fill in the first entry in the procedure linkage table.  */
1332
0
      splt = htab->root.splt;
1333
0
      if (splt && splt->size > 0)
1334
0
  {
1335
0
    if (bfd_link_pic (info))
1336
0
      {
1337
0
        bfd_put_32 (info->output_bfd, PLT0_PIC_ENTRY_WORD0,
1338
0
        splt->contents);
1339
0
        bfd_put_32 (info->output_bfd, PLT0_PIC_ENTRY_WORD1,
1340
0
        splt->contents + 4);
1341
0
        bfd_put_32 (info->output_bfd, PLT0_PIC_ENTRY_WORD2,
1342
0
        splt->contents + 8);
1343
0
        bfd_put_32 (info->output_bfd, PLT0_PIC_ENTRY_WORD3,
1344
0
        splt->contents + 12);
1345
0
        bfd_put_32 (info->output_bfd, PLT0_PIC_ENTRY_WORD4,
1346
0
        splt->contents + 16);
1347
0
      }
1348
0
    else
1349
0
      {
1350
0
        unsigned long addr;
1351
        /* addr = .got + 4 */
1352
0
        addr = sgot->output_section->vma + sgot->output_offset + 4;
1353
0
        bfd_put_32 (info->output_bfd,
1354
0
        PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1355
0
        splt->contents);
1356
0
        bfd_put_32 (info->output_bfd,
1357
0
        PLT0_ENTRY_WORD1 | (addr & 0xffff),
1358
0
        splt->contents + 4);
1359
0
        bfd_put_32 (info->output_bfd, PLT0_ENTRY_WORD2,
1360
0
        splt->contents + 8);
1361
0
        bfd_put_32 (info->output_bfd, PLT0_ENTRY_WORD3,
1362
0
        splt->contents + 12);
1363
0
        bfd_put_32 (info->output_bfd, PLT0_ENTRY_WORD4,
1364
0
        splt->contents + 16);
1365
0
      }
1366
1367
0
    elf_section_data (splt->output_section)->this_hdr.sh_entsize =
1368
0
      PLT_ENTRY_SIZE;
1369
0
  }
1370
0
    }
1371
1372
  /* Fill in the first three entries in the global offset table.  */
1373
0
  if (sgot && sgot->size > 0)
1374
0
    {
1375
0
      if (sdyn == NULL)
1376
0
  bfd_put_32 (info->output_bfd, 0, sgot->contents);
1377
0
      else
1378
0
  bfd_put_32 (info->output_bfd,
1379
0
        sdyn->output_section->vma + sdyn->output_offset,
1380
0
        sgot->contents);
1381
0
      bfd_put_32 (info->output_bfd, 0, sgot->contents + 4);
1382
0
      bfd_put_32 (info->output_bfd, 0, sgot->contents + 8);
1383
1384
      /* FIXME:  This can be null if create_dynamic_sections wasn't called. */
1385
0
      if (elf_section_data (sgot->output_section) != NULL)
1386
0
  elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1387
0
    }
1388
1389
0
  if (lm32fdpic_fixup32_section (info))
1390
0
    {
1391
0
      struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
1392
0
      bfd_vma got_value = hgot->root.u.def.value
1393
0
      + hgot->root.u.def.section->output_section->vma
1394
0
      + hgot->root.u.def.section->output_offset;
1395
0
      struct bfd_link_hash_entry *hend;
1396
1397
      /* Last entry is pointer to GOT.  */
1398
0
      _lm32fdpic_add_rofixup (info->output_bfd, lm32fdpic_fixup32_section (info), got_value);
1399
1400
      /* Check we wrote enough entries.  */
1401
0
      if (lm32fdpic_fixup32_section (info)->size
1402
0
        != (lm32fdpic_fixup32_section (info)->reloc_count * 4))
1403
0
  {
1404
0
    _bfd_error_handler
1405
0
      ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64
1406
0
       " != relocs %d",
1407
0
      (int64_t) (lm32fdpic_fixup32_section (info)->size / 4),
1408
0
      lm32fdpic_fixup32_section (info)->reloc_count);
1409
0
    return false;
1410
0
  }
1411
1412
0
      hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
1413
0
        false, false, true);
1414
0
      if (hend
1415
0
    && (hend->type == bfd_link_hash_defined
1416
0
        || hend->type == bfd_link_hash_defweak)
1417
0
    && hend->u.def.section->output_section != NULL)
1418
0
  {
1419
0
    bfd_vma value =
1420
0
      lm32fdpic_fixup32_section (info)->output_section->vma
1421
0
      + lm32fdpic_fixup32_section (info)->output_offset
1422
0
      + lm32fdpic_fixup32_section (info)->size
1423
0
      - hend->u.def.section->output_section->vma
1424
0
      - hend->u.def.section->output_offset;
1425
0
    BFD_ASSERT (hend->u.def.value == value);
1426
0
    if (hend->u.def.value != value)
1427
0
      {
1428
0
        _bfd_error_handler
1429
0
    ("LINKER BUG: .rofixup section hend->u.def.value != value: %"
1430
0
     PRId64 " != %" PRId64,
1431
0
     (int64_t) hend->u.def.value, (int64_t) value);
1432
0
        return false;
1433
0
      }
1434
0
  }
1435
0
    }
1436
1437
0
  return true;
1438
0
}
1439
1440
/* Finish up dynamic symbol handling.  We set the contents of various
1441
   dynamic sections here.  */
1442
1443
static bool
1444
lm32_elf_finish_dynamic_symbol (struct bfd_link_info *info,
1445
        struct elf_link_hash_entry *h,
1446
        Elf_Internal_Sym *sym)
1447
0
{
1448
0
  struct elf_lm32_link_hash_table *htab;
1449
0
  bfd_byte *loc;
1450
1451
0
  htab = lm32_elf_hash_table (info);
1452
1453
0
  if (h->plt.offset != (bfd_vma) -1)
1454
0
    {
1455
0
      asection *splt;
1456
0
      asection *sgot;
1457
0
      asection *srela;
1458
1459
0
      bfd_vma plt_index;
1460
0
      bfd_vma got_offset;
1461
0
      Elf_Internal_Rela rela;
1462
1463
      /* This symbol has an entry in the procedure linkage table.  Set
1464
   it up.  */
1465
0
      BFD_ASSERT (h->dynindx != -1);
1466
1467
0
      splt = htab->root.splt;
1468
0
      sgot = htab->root.sgotplt;
1469
0
      srela = htab->root.srelplt;
1470
0
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1471
1472
      /* Get the index in the procedure linkage table which
1473
   corresponds to this symbol.  This is the index of this symbol
1474
   in all the symbols for which we are making plt entries.  The
1475
   first entry in the procedure linkage table is reserved.  */
1476
0
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1477
1478
      /* Get the offset into the .got table of the entry that
1479
  corresponds to this function.  Each .got entry is 4 bytes.
1480
  The first three are reserved.  */
1481
0
      got_offset = (plt_index + 3) * 4;
1482
1483
      /* Fill in the entry in the procedure linkage table.  */
1484
0
      if (! bfd_link_pic (info))
1485
0
  {
1486
    /* TODO */
1487
0
  }
1488
0
      else
1489
0
  {
1490
    /* TODO */
1491
0
  }
1492
1493
      /* Fill in the entry in the global offset table.  */
1494
0
      bfd_put_32 (info->output_bfd,
1495
0
      (splt->output_section->vma
1496
0
       + splt->output_offset
1497
0
       + h->plt.offset
1498
0
       + 12), /* same offset */
1499
0
      sgot->contents + got_offset);
1500
1501
      /* Fill in the entry in the .rela.plt section.  */
1502
0
      rela.r_offset = (sgot->output_section->vma
1503
0
           + sgot->output_offset
1504
0
           + got_offset);
1505
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT);
1506
0
      rela.r_addend = 0;
1507
0
      loc = srela->contents;
1508
0
      loc += plt_index * sizeof (Elf32_External_Rela);
1509
0
      bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
1510
1511
0
      if (!h->def_regular)
1512
0
  {
1513
    /* Mark the symbol as undefined, rather than as defined in
1514
       the .plt section.  Leave the value alone.  */
1515
0
    sym->st_shndx = SHN_UNDEF;
1516
0
  }
1517
1518
0
    }
1519
1520
0
  if (h->got.offset != (bfd_vma) -1)
1521
0
    {
1522
0
      asection *sgot;
1523
0
      asection *srela;
1524
0
      Elf_Internal_Rela rela;
1525
1526
      /* This symbol has an entry in the global offset table.  Set it
1527
   up.  */
1528
0
      sgot = htab->root.sgot;
1529
0
      srela = htab->root.srelgot;
1530
0
      BFD_ASSERT (sgot != NULL && srela != NULL);
1531
1532
0
      rela.r_offset = (sgot->output_section->vma
1533
0
           + sgot->output_offset
1534
0
           + (h->got.offset &~ 1));
1535
1536
      /* If this is a -Bsymbolic link, and the symbol is defined
1537
   locally, we just want to emit a RELATIVE reloc.  Likewise if
1538
   the symbol was forced to be local because of a version file.
1539
   The entry in the global offset table will already have been
1540
   initialized in the relocate_section function.  */
1541
0
      if (bfd_link_pic (info)
1542
0
    && (info->symbolic
1543
0
        || h->dynindx == -1
1544
0
        || h->forced_local)
1545
0
    && h->def_regular)
1546
0
  {
1547
0
    rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE);
1548
0
    rela.r_addend = (h->root.u.def.value
1549
0
         + h->root.u.def.section->output_section->vma
1550
0
         + h->root.u.def.section->output_offset);
1551
0
  }
1552
0
      else
1553
0
  {
1554
0
    BFD_ASSERT ((h->got.offset & 1) == 0);
1555
0
    bfd_put_32 (info->output_bfd, 0, sgot->contents + h->got.offset);
1556
0
    rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT);
1557
0
    rela.r_addend = 0;
1558
0
  }
1559
1560
0
      loc = srela->contents;
1561
0
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1562
0
      bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
1563
0
      ++srela->reloc_count;
1564
0
    }
1565
1566
0
  if (h->needs_copy)
1567
0
    {
1568
0
      asection *s;
1569
0
      Elf_Internal_Rela rela;
1570
1571
      /* This symbols needs a copy reloc.  Set it up.  */
1572
0
      BFD_ASSERT (h->dynindx != -1
1573
0
      && (h->root.type == bfd_link_hash_defined
1574
0
          || h->root.type == bfd_link_hash_defweak));
1575
1576
0
      s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
1577
0
      BFD_ASSERT (s != NULL);
1578
1579
0
      rela.r_offset = (h->root.u.def.value
1580
0
           + h->root.u.def.section->output_section->vma
1581
0
           + h->root.u.def.section->output_offset);
1582
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY);
1583
0
      rela.r_addend = 0;
1584
0
      loc = s->contents;
1585
0
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
1586
0
      bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
1587
0
      ++s->reloc_count;
1588
0
    }
1589
1590
  /* Mark some specially defined symbols as absolute.  */
1591
0
  if (h == htab->root.hdynamic || h == htab->root.hgot)
1592
0
    sym->st_shndx = SHN_ABS;
1593
1594
0
  return true;
1595
0
}
1596
1597
static enum elf_reloc_type_class
1598
lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1599
         const asection *rel_sec ATTRIBUTE_UNUSED,
1600
         const Elf_Internal_Rela *rela)
1601
0
{
1602
0
  switch ((int) ELF32_R_TYPE (rela->r_info))
1603
0
    {
1604
0
    case R_LM32_RELATIVE:  return reloc_class_relative;
1605
0
    case R_LM32_JMP_SLOT:  return reloc_class_plt;
1606
0
    case R_LM32_COPY:      return reloc_class_copy;
1607
0
    default:       return reloc_class_normal;
1608
0
    }
1609
0
}
1610
1611
/* Adjust a symbol defined by a dynamic object and referenced by a
1612
   regular object.  The current definition is in some section of the
1613
   dynamic object, but we're not including those sections.  We have to
1614
   change the definition to something the rest of the link can
1615
   understand.  */
1616
1617
static bool
1618
lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1619
        struct elf_link_hash_entry *h)
1620
0
{
1621
0
  struct elf_lm32_link_hash_table *htab;
1622
0
  bfd *dynobj;
1623
0
  asection *s;
1624
1625
0
  dynobj = elf_hash_table (info)->dynobj;
1626
1627
  /* Make sure we know what is going on here.  */
1628
0
  BFD_ASSERT (dynobj != NULL
1629
0
        && (h->needs_plt
1630
0
      || h->is_weakalias
1631
0
      || (h->def_dynamic
1632
0
          && h->ref_regular
1633
0
          && !h->def_regular)));
1634
1635
  /* If this is a function, put it in the procedure linkage table.  We
1636
     will fill in the contents of the procedure linkage table later,
1637
     when we know the address of the .got section.  */
1638
0
  if (h->type == STT_FUNC
1639
0
      || h->needs_plt)
1640
0
    {
1641
0
      if (! bfd_link_pic (info)
1642
0
    && !h->def_dynamic
1643
0
    && !h->ref_dynamic
1644
0
    && h->root.type != bfd_link_hash_undefweak
1645
0
    && h->root.type != bfd_link_hash_undefined)
1646
0
  {
1647
    /* This case can occur if we saw a PLT reloc in an input
1648
       file, but the symbol was never referred to by a dynamic
1649
       object.  In such a case, we don't actually need to build
1650
       a procedure linkage table, and we can just do a PCREL
1651
       reloc instead.  */
1652
0
    h->plt.offset = (bfd_vma) -1;
1653
0
    h->needs_plt = 0;
1654
0
  }
1655
1656
0
      return true;
1657
0
    }
1658
0
  else
1659
0
    h->plt.offset = (bfd_vma) -1;
1660
1661
  /* If this is a weak symbol, and there is a real definition, the
1662
     processor independent code will have arranged for us to see the
1663
     real definition first, and we can just use the same value.  */
1664
0
  if (h->is_weakalias)
1665
0
    {
1666
0
      struct elf_link_hash_entry *def = weakdef (h);
1667
0
      BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1668
0
      h->root.u.def.section = def->root.u.def.section;
1669
0
      h->root.u.def.value = def->root.u.def.value;
1670
0
      return true;
1671
0
    }
1672
1673
  /* This is a reference to a symbol defined by a dynamic object which
1674
     is not a function.  */
1675
1676
  /* If we are creating a shared library, we must presume that the
1677
     only references to the symbol are via the global offset table.
1678
     For such cases we need not do anything here; the relocations will
1679
     be handled correctly by relocate_section.  */
1680
0
  if (bfd_link_pic (info))
1681
0
    return true;
1682
1683
  /* If there are no references to this symbol that do not use the
1684
     GOT, we don't need to generate a copy reloc.  */
1685
0
  if (!h->non_got_ref)
1686
0
    return true;
1687
1688
  /* If -z nocopyreloc was given, we won't generate them either.  */
1689
0
  if (0 && info->nocopyreloc)
1690
0
    {
1691
0
      h->non_got_ref = 0;
1692
0
      return true;
1693
0
    }
1694
1695
  /* If we don't find any dynamic relocs in read-only sections, then
1696
     we'll be keeping the dynamic relocs and avoiding the copy reloc.  */
1697
0
  if (0 && !_bfd_elf_readonly_dynrelocs (h))
1698
0
    {
1699
0
      h->non_got_ref = 0;
1700
0
      return true;
1701
0
    }
1702
1703
  /* We must allocate the symbol in our .dynbss section, which will
1704
     become part of the .bss section of the executable.  There will be
1705
     an entry for this symbol in the .dynsym section.  The dynamic
1706
     object will contain position independent code, so all references
1707
     from the dynamic object to this symbol will go through the global
1708
     offset table.  The dynamic linker will use the .dynsym entry to
1709
     determine the address it must put in the global offset table, so
1710
     both the dynamic object and the regular object will refer to the
1711
     same memory location for the variable.  */
1712
1713
0
  htab = lm32_elf_hash_table (info);
1714
0
  if (htab == NULL)
1715
0
    return false;
1716
1717
0
  s = htab->sdynbss;
1718
0
  BFD_ASSERT (s != NULL);
1719
1720
  /* We must generate a R_LM32_COPY reloc to tell the dynamic linker
1721
     to copy the initial value out of the dynamic object and into the
1722
     runtime process image.  We need to remember the offset into the
1723
     .rela.bss section we are going to use.  */
1724
0
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1725
0
    {
1726
0
      asection *srel;
1727
1728
0
      srel = htab->srelbss;
1729
0
      BFD_ASSERT (srel != NULL);
1730
0
      srel->size += sizeof (Elf32_External_Rela);
1731
0
      h->needs_copy = 1;
1732
0
    }
1733
1734
0
  return _bfd_elf_adjust_dynamic_copy (info, h, s);
1735
0
}
1736
1737
/* Allocate space in .plt, .got and associated reloc sections for
1738
   dynamic relocs.  */
1739
1740
static bool
1741
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1742
0
{
1743
0
  struct bfd_link_info *info;
1744
0
  struct elf_lm32_link_hash_table *htab;
1745
0
  struct elf_dyn_relocs *p;
1746
1747
0
  if (h->root.type == bfd_link_hash_indirect)
1748
0
    return true;
1749
1750
0
  info = (struct bfd_link_info *) inf;
1751
0
  htab = lm32_elf_hash_table (info);
1752
0
  if (htab == NULL)
1753
0
    return false;
1754
1755
0
  if (htab->root.dynamic_sections_created
1756
0
      && h->plt.refcount > 0)
1757
0
    {
1758
      /* Make sure this symbol is output as a dynamic symbol.
1759
   Undefined weak syms won't yet be marked as dynamic.  */
1760
0
      if (h->dynindx == -1
1761
0
    && !h->forced_local)
1762
0
  {
1763
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1764
0
      return false;
1765
0
  }
1766
1767
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1768
0
  {
1769
0
    asection *s = htab->root.splt;
1770
1771
    /* If this is the first .plt entry, make room for the special
1772
       first entry.  */
1773
0
    if (s->size == 0)
1774
0
      s->size += PLT_ENTRY_SIZE;
1775
1776
0
    h->plt.offset = s->size;
1777
1778
    /* If this symbol is not defined in a regular file, and we are
1779
       not generating a shared library, then set the symbol to this
1780
       location in the .plt.  This is required to make function
1781
       pointers compare as equal between the normal executable and
1782
       the shared library.  */
1783
0
    if (! bfd_link_pic (info)
1784
0
        && !h->def_regular)
1785
0
      {
1786
0
        h->root.u.def.section = s;
1787
0
        h->root.u.def.value = h->plt.offset;
1788
0
      }
1789
1790
    /* Make room for this entry.  */
1791
0
    s->size += PLT_ENTRY_SIZE;
1792
1793
    /* We also need to make an entry in the .got.plt section, which
1794
       will be placed in the .got section by the linker script.  */
1795
0
    htab->root.sgotplt->size += 4;
1796
1797
    /* We also need to make an entry in the .rel.plt section.  */
1798
0
    htab->root.srelplt->size += sizeof (Elf32_External_Rela);
1799
0
  }
1800
0
      else
1801
0
  {
1802
0
    h->plt.offset = (bfd_vma) -1;
1803
0
    h->needs_plt = 0;
1804
0
  }
1805
0
    }
1806
0
  else
1807
0
    {
1808
0
      h->plt.offset = (bfd_vma) -1;
1809
0
      h->needs_plt = 0;
1810
0
    }
1811
1812
0
  if (h->got.refcount > 0)
1813
0
    {
1814
0
      asection *s;
1815
0
      bool dyn;
1816
1817
      /* Make sure this symbol is output as a dynamic symbol.
1818
   Undefined weak syms won't yet be marked as dynamic.  */
1819
0
      if (h->dynindx == -1
1820
0
    && !h->forced_local)
1821
0
  {
1822
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1823
0
      return false;
1824
0
  }
1825
1826
0
      s = htab->root.sgot;
1827
1828
0
      h->got.offset = s->size;
1829
0
      s->size += 4;
1830
0
      dyn = htab->root.dynamic_sections_created;
1831
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1832
0
  htab->root.srelgot->size += sizeof (Elf32_External_Rela);
1833
0
    }
1834
0
  else
1835
0
    h->got.offset = (bfd_vma) -1;
1836
1837
0
  if (h->dyn_relocs == NULL)
1838
0
    return true;
1839
1840
  /* In the shared -Bsymbolic case, discard space allocated for
1841
     dynamic pc-relative relocs against symbols which turn out to be
1842
     defined in regular objects.  For the normal shared case, discard
1843
     space for pc-relative relocs that have become local due to symbol
1844
     visibility changes.  */
1845
1846
0
  if (bfd_link_pic (info))
1847
0
    {
1848
0
      if (h->def_regular
1849
0
    && (h->forced_local
1850
0
        || info->symbolic))
1851
0
  {
1852
0
    struct elf_dyn_relocs **pp;
1853
1854
0
    for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
1855
0
      {
1856
0
        p->count -= p->pc_count;
1857
0
        p->pc_count = 0;
1858
0
        if (p->count == 0)
1859
0
    *pp = p->next;
1860
0
        else
1861
0
    pp = &p->next;
1862
0
      }
1863
0
  }
1864
1865
      /* Also discard relocs on undefined weak syms with non-default
1866
   visibility.  */
1867
0
      if (h->dyn_relocs != NULL
1868
0
    && h->root.type == bfd_link_hash_undefweak)
1869
0
  {
1870
0
    if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1871
0
      h->dyn_relocs = NULL;
1872
1873
    /* Make sure undefined weak symbols are output as a dynamic
1874
       symbol in PIEs.  */
1875
0
    else 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
0
  }
1882
0
    }
1883
0
  else
1884
0
    {
1885
      /* For the non-shared case, discard space for relocs against
1886
   symbols which turn out to need copy relocs or are not
1887
   dynamic.  */
1888
1889
0
      if (!h->non_got_ref
1890
0
    && ((h->def_dynamic
1891
0
         && !h->def_regular)
1892
0
        || (htab->root.dynamic_sections_created
1893
0
      && (h->root.type == bfd_link_hash_undefweak
1894
0
          || h->root.type == bfd_link_hash_undefined))))
1895
0
  {
1896
    /* Make sure this symbol is output as a dynamic symbol.
1897
       Undefined weak syms won't yet be marked as dynamic.  */
1898
0
    if (h->dynindx == -1
1899
0
        && !h->forced_local)
1900
0
      {
1901
0
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
1902
0
    return false;
1903
0
      }
1904
1905
    /* If that succeeded, we know we'll be keeping all the
1906
       relocs.  */
1907
0
    if (h->dynindx != -1)
1908
0
      goto keep;
1909
0
  }
1910
1911
0
      h->dyn_relocs = NULL;
1912
1913
0
    keep: ;
1914
0
    }
1915
1916
  /* Finally, allocate space.  */
1917
0
  for (p = h->dyn_relocs; p != NULL; p = p->next)
1918
0
    {
1919
0
      asection *sreloc = elf_section_data (p->sec)->sreloc;
1920
0
      sreloc->size += p->count * sizeof (Elf32_External_Rela);
1921
0
    }
1922
1923
0
  return true;
1924
0
}
1925
1926
/* Set the sizes of the dynamic sections.  */
1927
1928
static bool
1929
lm32_elf_late_size_sections (struct bfd_link_info *info)
1930
0
{
1931
0
  struct elf_lm32_link_hash_table *htab;
1932
0
  bfd *dynobj;
1933
0
  asection *s;
1934
0
  bool relocs;
1935
0
  bfd *ibfd;
1936
1937
0
  htab = lm32_elf_hash_table (info);
1938
0
  if (htab == NULL)
1939
0
    return false;
1940
1941
0
  dynobj = htab->root.dynobj;
1942
0
  if (dynobj == NULL)
1943
0
    return true;
1944
1945
0
  if (htab->root.dynamic_sections_created)
1946
0
    {
1947
      /* Set the contents of the .interp section to the interpreter.  */
1948
0
      if (bfd_link_executable (info) && !info->nointerp)
1949
0
  {
1950
0
    s = htab->root.interp;
1951
0
    BFD_ASSERT (s != NULL);
1952
0
    s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1953
0
    s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1954
0
    s->alloced = 1;
1955
0
  }
1956
0
    }
1957
1958
  /* Set up .got offsets for local syms, and space for local dynamic
1959
     relocs.  */
1960
0
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1961
0
    {
1962
0
      bfd_signed_vma *local_got;
1963
0
      bfd_signed_vma *end_local_got;
1964
0
      bfd_size_type locsymcount;
1965
0
      Elf_Internal_Shdr *symtab_hdr;
1966
0
      asection *srel;
1967
1968
0
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
1969
0
  continue;
1970
1971
0
      for (s = ibfd->sections; s != NULL; s = s->next)
1972
0
  {
1973
0
    struct elf_dyn_relocs *p;
1974
1975
0
    for (p = ((struct elf_dyn_relocs *)
1976
0
        elf_section_data (s)->local_dynrel);
1977
0
         p != NULL;
1978
0
         p = p->next)
1979
0
      {
1980
0
        if (! bfd_is_abs_section (p->sec)
1981
0
      && bfd_is_abs_section (p->sec->output_section))
1982
0
    {
1983
      /* Input section has been discarded, either because
1984
         it is a copy of a linkonce section or due to
1985
         linker script /DISCARD/, so we'll be discarding
1986
         the relocs too.  */
1987
0
    }
1988
0
        else if (p->count != 0)
1989
0
    {
1990
0
      srel = elf_section_data (p->sec)->sreloc;
1991
0
      srel->size += p->count * sizeof (Elf32_External_Rela);
1992
0
      if ((p->sec->output_section->flags & SEC_READONLY) != 0)
1993
0
        info->flags |= DF_TEXTREL;
1994
0
    }
1995
0
      }
1996
0
  }
1997
1998
0
      local_got = elf_local_got_refcounts (ibfd);
1999
0
      if (!local_got)
2000
0
  continue;
2001
2002
0
      symtab_hdr = &elf_symtab_hdr (ibfd);
2003
0
      locsymcount = symtab_hdr->sh_info;
2004
0
      end_local_got = local_got + locsymcount;
2005
0
      s = htab->root.sgot;
2006
0
      srel = htab->root.srelgot;
2007
0
      for (; local_got < end_local_got; ++local_got)
2008
0
  {
2009
0
    if (*local_got > 0)
2010
0
      {
2011
0
        *local_got = s->size;
2012
0
        s->size += 4;
2013
0
        if (bfd_link_pic (info))
2014
0
    srel->size += sizeof (Elf32_External_Rela);
2015
0
      }
2016
0
    else
2017
0
      *local_got = (bfd_vma) -1;
2018
0
  }
2019
0
    }
2020
2021
  /* Allocate global sym .plt and .got entries, and space for global
2022
     sym dynamic relocs.  */
2023
0
  elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2024
2025
  /* We now have determined the sizes of the various dynamic sections.
2026
     Allocate memory for them.  */
2027
0
  relocs = false;
2028
0
  for (s = dynobj->sections; s != NULL; s = s->next)
2029
0
    {
2030
0
      if ((s->flags & SEC_LINKER_CREATED) == 0)
2031
0
  continue;
2032
2033
0
      if (s == htab->root.splt
2034
0
    || s == htab->root.sgot
2035
0
    || s == htab->root.sgotplt
2036
0
    || s == htab->sdynbss)
2037
0
  {
2038
    /* Strip this section if we don't need it; see the
2039
       comment below.  */
2040
0
  }
2041
0
      else if (startswith (bfd_section_name (s), ".rela"))
2042
0
  {
2043
0
    if (s->size != 0 && s != htab->root.srelplt)
2044
0
      relocs = true;
2045
2046
    /* We use the reloc_count field as a counter if we need
2047
       to copy relocs into the output file.  */
2048
0
    s->reloc_count = 0;
2049
0
  }
2050
0
      else
2051
  /* It's not one of our sections, so don't allocate space.  */
2052
0
  continue;
2053
2054
0
      if (s->size == 0)
2055
0
  {
2056
    /* If we don't need this section, strip it from the
2057
       output file.  This is mostly to handle .rela.bss and
2058
       .rela.plt.  We must create both sections in
2059
       create_dynamic_sections, because they must be created
2060
       before the linker maps input sections to output
2061
       sections.  The linker does that before
2062
       adjust_dynamic_symbol is called, and it is that
2063
       function which decides whether anything needs to go
2064
       into these sections.  */
2065
0
    s->flags |= SEC_EXCLUDE;
2066
0
    continue;
2067
0
  }
2068
2069
0
      if ((s->flags & SEC_HAS_CONTENTS) == 0)
2070
0
  continue;
2071
2072
      /* Allocate memory for the section contents.  We use bfd_zalloc
2073
   here in case unused entries are not reclaimed before the
2074
   section's contents are written out.  This should not happen,
2075
   but this way if it does, we get a R_LM32_NONE reloc instead
2076
   of garbage.  */
2077
0
      s->contents = bfd_zalloc (dynobj, s->size);
2078
0
      if (s->contents == NULL)
2079
0
  return false;
2080
0
      s->alloced = 1;
2081
0
    }
2082
2083
0
  if (!_bfd_elf_add_dynamic_tags (info, relocs))
2084
0
    return false;
2085
2086
  /* Allocate .rofixup section.  */
2087
0
  if (IS_FDPIC (info->output_bfd)
2088
0
      && lm32fdpic_fixup32_section (info) != NULL)
2089
0
    {
2090
0
      struct weak_symbol_list *list_start = NULL, *list_end = NULL;
2091
0
      int rgot_weak_count = 0;
2092
0
      int r32_count = 0;
2093
0
      int rgot_count ATTRIBUTE_UNUSED = 0;
2094
      /* Look for deleted sections.  */
2095
0
      for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2096
0
  {
2097
0
    for (s = ibfd->sections; s != NULL; s = s->next)
2098
0
      {
2099
0
        if (s->reloc_count)
2100
0
    {
2101
      /* Count relocs that need .rofixup entires.  */
2102
0
      Elf_Internal_Rela *internal_relocs, *end;
2103
0
      internal_relocs = elf_section_data (s)->relocs;
2104
0
      if (internal_relocs == NULL)
2105
0
        internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, false));
2106
0
      if (internal_relocs != NULL)
2107
0
        {
2108
0
          end = internal_relocs + s->reloc_count;
2109
0
          while (internal_relocs < end)
2110
0
      {
2111
0
        Elf_Internal_Shdr *symtab_hdr;
2112
0
        struct elf_link_hash_entry **sym_hashes;
2113
0
        unsigned long r_symndx;
2114
0
        struct elf_link_hash_entry *h;
2115
2116
0
        symtab_hdr = &elf_symtab_hdr (ibfd);
2117
0
        sym_hashes = elf_sym_hashes (ibfd);
2118
0
        r_symndx = ELF32_R_SYM (internal_relocs->r_info);
2119
0
        h = NULL;
2120
0
        if (r_symndx < symtab_hdr->sh_info)
2121
0
          {
2122
0
          }
2123
0
        else
2124
0
          {
2125
0
            h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2126
0
            while (h->root.type == bfd_link_hash_indirect
2127
0
             || h->root.type == bfd_link_hash_warning)
2128
0
        h = (struct elf_link_hash_entry *) h->root.u.i.link;
2129
0
            }
2130
2131
        /* Don't generate entries for weak symbols.  */
2132
0
        if (!h || (h && h->root.type != bfd_link_hash_undefweak))
2133
0
          {
2134
0
            if (!discarded_section (s) && !((bfd_section_flags (s) & SEC_ALLOC) == 0))
2135
0
        {
2136
0
          switch (ELF32_R_TYPE (internal_relocs->r_info))
2137
0
            {
2138
0
            case R_LM32_32:
2139
0
              r32_count++;
2140
0
              break;
2141
0
            case R_LM32_16_GOT:
2142
0
              rgot_count++;
2143
0
              break;
2144
0
            }
2145
0
        }
2146
0
          }
2147
0
        else
2148
0
          {
2149
0
            struct weak_symbol_list *current, *new_entry;
2150
            /* Is this symbol already in the list?  */
2151
0
            for (current = list_start; current; current = current->next)
2152
0
        {
2153
0
          if (!strcmp (current->name, h->root.root.string))
2154
0
            break;
2155
0
        }
2156
0
            if (!current && !discarded_section (s) && (bfd_section_flags (s) & SEC_ALLOC))
2157
0
        {
2158
          /* Will this have an entry in the GOT.  */
2159
0
          if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT)
2160
0
            {
2161
              /* Create a new entry.  */
2162
0
              new_entry = malloc (sizeof (struct weak_symbol_list));
2163
0
              if (!new_entry)
2164
0
          return false;
2165
0
              new_entry->name = h->root.root.string;
2166
0
              new_entry->next = NULL;
2167
              /* Add to list */
2168
0
              if (list_start == NULL)
2169
0
          {
2170
0
            list_start = new_entry;
2171
0
            list_end = new_entry;
2172
0
          }
2173
0
              else
2174
0
          {
2175
0
            list_end->next = new_entry;
2176
0
            list_end = new_entry;
2177
0
          }
2178
              /* Increase count of undefined weak symbols in the got.  */
2179
0
              rgot_weak_count++;
2180
0
            }
2181
0
        }
2182
0
          }
2183
0
        internal_relocs++;
2184
0
      }
2185
0
        }
2186
0
      else
2187
0
        return false;
2188
0
    }
2189
0
      }
2190
0
  }
2191
      /* Free list.  */
2192
0
      while (list_start)
2193
0
  {
2194
0
    list_end = list_start->next;
2195
0
    free (list_start);
2196
0
    list_start = list_end;
2197
0
  }
2198
2199
      /* Size sections.  */
2200
0
      lm32fdpic_fixup32_section (info)->size
2201
0
  = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4;
2202
0
      if (lm32fdpic_fixup32_section (info)->size == 0)
2203
0
  lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE;
2204
0
      else
2205
0
  {
2206
0
    lm32fdpic_fixup32_section (info)->contents =
2207
0
       bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size);
2208
0
    if (lm32fdpic_fixup32_section (info)->contents == NULL)
2209
0
      return false;
2210
0
    lm32fdpic_fixup32_section (info)->alloced = 1;
2211
0
  }
2212
0
    }
2213
2214
0
  return true;
2215
0
}
2216
2217
/* Create dynamic sections when linking against a dynamic object.  */
2218
2219
static bool
2220
lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2221
0
{
2222
0
  struct elf_lm32_link_hash_table *htab;
2223
0
  flagword flags, pltflags;
2224
0
  asection *s;
2225
0
  elf_backend_data *bed = get_elf_backend_data (abfd);
2226
0
  int ptralign = 2; /* 32bit */
2227
2228
0
  htab = lm32_elf_hash_table (info);
2229
0
  if (htab == NULL)
2230
0
    return false;
2231
2232
0
  if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL))
2233
0
    {
2234
0
      if (! create_rofixup_section (abfd, info))
2235
0
  return false;
2236
0
    }
2237
2238
  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2239
     .rel[a].bss sections.  */
2240
0
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2241
0
     | SEC_LINKER_CREATED);
2242
2243
0
  pltflags = flags;
2244
0
  pltflags |= SEC_CODE;
2245
0
  if (bed->plt_not_loaded)
2246
0
    pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2247
0
  if (bed->plt_readonly)
2248
0
    pltflags |= SEC_READONLY;
2249
2250
0
  s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2251
0
  htab->root.splt = s;
2252
0
  if (s == NULL
2253
0
      || !bfd_set_section_alignment (s, bed->plt_alignment))
2254
0
    return false;
2255
2256
0
  if (bed->want_plt_sym)
2257
0
    {
2258
      /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2259
   .plt section.  */
2260
0
      struct bfd_link_hash_entry *bh = NULL;
2261
0
      struct elf_link_hash_entry *h;
2262
2263
0
      if (! (_bfd_generic_link_add_one_symbol
2264
0
       (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2265
0
        (bfd_vma) 0, NULL, false,
2266
0
        get_elf_backend_data (abfd)->collect, &bh)))
2267
0
  return false;
2268
0
      h = (struct elf_link_hash_entry *) bh;
2269
0
      h->def_regular = 1;
2270
0
      h->type = STT_OBJECT;
2271
0
      htab->root.hplt = h;
2272
2273
0
      if (bfd_link_pic (info)
2274
0
    && ! bfd_elf_link_record_dynamic_symbol (info, h))
2275
0
  return false;
2276
0
    }
2277
2278
0
  s = bfd_make_section_anyway_with_flags (abfd,
2279
0
            bed->default_use_rela_p
2280
0
            ? ".rela.plt" : ".rel.plt",
2281
0
            flags | SEC_READONLY);
2282
0
  htab->root.srelplt = s;
2283
0
  if (s == NULL
2284
0
      || !bfd_set_section_alignment (s, ptralign))
2285
0
    return false;
2286
2287
0
  if (htab->root.sgot == NULL
2288
0
      && !_bfd_elf_create_got_section (abfd, info))
2289
0
    return false;
2290
2291
0
  if (bed->want_dynbss)
2292
0
    {
2293
      /* The .dynbss section is a place to put symbols which are defined
2294
   by dynamic objects, are referenced by regular objects, and are
2295
   not functions.  We must allocate space for them in the process
2296
   image and use a R_*_COPY reloc to tell the dynamic linker to
2297
   initialize them at run time.  The linker script puts the .dynbss
2298
   section into the .bss section of the final image.  */
2299
0
      s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2300
0
                SEC_ALLOC | SEC_LINKER_CREATED);
2301
0
      htab->sdynbss = s;
2302
0
      if (s == NULL)
2303
0
  return false;
2304
      /* The .rel[a].bss section holds copy relocs.  This section is not
2305
   normally needed.  We need to create it here, though, so that the
2306
   linker will map it to an output section.  We can't just create it
2307
   only if we need it, because we will not know whether we need it
2308
   until we have seen all the input files, and the first time the
2309
   main linker code calls BFD after examining all the input files
2310
   (size_dynamic_sections) the input sections have already been
2311
   mapped to the output sections.  If the section turns out not to
2312
   be needed, we can discard it later.  We will never need this
2313
   section when generating a shared object, since they do not use
2314
   copy relocs.  */
2315
0
      if (! bfd_link_pic (info))
2316
0
  {
2317
0
    s = bfd_make_section_anyway_with_flags (abfd,
2318
0
              (bed->default_use_rela_p
2319
0
               ? ".rela.bss" : ".rel.bss"),
2320
0
              flags | SEC_READONLY);
2321
0
    htab->srelbss = s;
2322
0
    if (s == NULL
2323
0
        || !bfd_set_section_alignment (s, ptralign))
2324
0
      return false;
2325
0
  }
2326
0
    }
2327
2328
0
  return true;
2329
0
}
2330
2331
static bool
2332
lm32_elf_early_size_sections (struct bfd_link_info *info)
2333
0
{
2334
0
  if (!bfd_link_relocatable (info))
2335
0
    {
2336
0
      if (!bfd_elf_stack_segment_size (info, "__stacksize", DEFAULT_STACK_SIZE))
2337
0
  return false;
2338
2339
0
      asection *sec = bfd_get_section_by_name (info->output_bfd, ".stack");
2340
0
      if (sec)
2341
0
  sec->size = info->stacksize >= 0 ? info->stacksize : 0;
2342
0
    }
2343
2344
0
  return true;
2345
0
}
2346
2347
static bool
2348
lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2349
0
{
2350
0
  unsigned i;
2351
2352
0
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2353
0
    return true;
2354
2355
0
  if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
2356
0
    return false;
2357
2358
0
  if (! elf_tdata (ibfd)->phdr || ! elf_tdata (obfd)->phdr)
2359
0
    return true;
2360
2361
  /* Copy the stack size.  */
2362
0
  for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
2363
0
    if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
2364
0
      {
2365
0
  Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
2366
2367
0
  for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
2368
0
    if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
2369
0
      {
2370
0
        memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
2371
2372
        /* Rewrite the phdrs, since we're only called after they were first written.  */
2373
0
        if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
2374
0
          ->s->sizeof_ehdr, SEEK_SET) != 0
2375
0
      || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
2376
0
             elf_elfheader (obfd)->e_phnum) != 0)
2377
0
    return false;
2378
0
        break;
2379
0
      }
2380
2381
0
  break;
2382
0
      }
2383
2384
0
  return true;
2385
0
}
2386
2387
2388
#define ELF_ARCH    bfd_arch_lm32
2389
#define ELF_TARGET_ID   LM32_ELF_DATA
2390
#define ELF_MACHINE_CODE  EM_LATTICEMICO32
2391
#define ELF_MAXPAGESIZE   0x1000
2392
2393
#define TARGET_BIG_SYM    lm32_elf32_vec
2394
#define TARGET_BIG_NAME   "elf32-lm32"
2395
2396
#define bfd_elf32_bfd_reloc_type_lookup   lm32_reloc_type_lookup
2397
#define bfd_elf32_bfd_reloc_name_lookup   lm32_reloc_name_lookup
2398
#define elf_info_to_howto     lm32_info_to_howto_rela
2399
#define elf_info_to_howto_rel     NULL
2400
#define elf_backend_rela_normal     1
2401
#define elf_backend_object_p      lm32_elf_object_p
2402
#define elf_backend_final_write_processing  lm32_elf_final_write_processing
2403
#define elf_backend_stack_align     8
2404
#define elf_backend_can_gc_sections   1
2405
#define elf_backend_can_refcount    1
2406
#define elf_backend_gc_mark_hook    lm32_elf_gc_mark_hook
2407
#define elf_backend_plt_readonly    1
2408
#define elf_backend_want_got_plt    1
2409
#define elf_backend_want_plt_sym    0
2410
#define elf_backend_got_header_size   12
2411
#define elf_backend_dtrel_excludes_plt    1
2412
#define bfd_elf32_bfd_link_hash_table_create  lm32_elf_link_hash_table_create
2413
#define elf_backend_check_relocs    lm32_elf_check_relocs
2414
#define elf_backend_reloc_type_class    lm32_elf_reloc_type_class
2415
#define elf_backend_late_size_sections    lm32_elf_late_size_sections
2416
#define elf_backend_omit_section_dynsym   _bfd_elf_omit_section_dynsym_all
2417
#define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections
2418
#define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections
2419
#define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol
2420
#define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol
2421
#define elf_backend_relocate_section    lm32_elf_relocate_section
2422
2423
#include "elf32-target.h"
2424
2425
#undef  ELF_MAXPAGESIZE
2426
#define ELF_MAXPAGESIZE   0x4000
2427
2428
2429
#undef  TARGET_BIG_SYM
2430
#define TARGET_BIG_SYM    lm32_elf32_fdpic_vec
2431
#undef  TARGET_BIG_NAME
2432
#define TARGET_BIG_NAME   "elf32-lm32fdpic"
2433
#undef  elf32_bed
2434
#define elf32_bed   elf32_lm32fdpic_bed
2435
2436
#undef  elf_backend_early_size_sections
2437
#define elf_backend_early_size_sections   lm32_elf_early_size_sections
2438
#undef  bfd_elf32_bfd_copy_private_bfd_data
2439
#define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data
2440
2441
#include "elf32-target.h"