Coverage Report

Created: 2024-05-21 06:29

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