Coverage Report

Created: 2026-03-10 08:46

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/binutils-gdb/bfd/elf32-m32r.c
Line
Count
Source
1
/* M32R-specific support for 32-bit ELF.
2
   Copyright (C) 1996-2026 Free Software Foundation, Inc.
3
4
   This file is part of BFD, the Binary File Descriptor library.
5
6
   This program is free software; you can redistribute it and/or modify
7
   it under the terms of the GNU General Public License as published by
8
   the Free Software Foundation; either version 3 of the License, or
9
   (at your option) any later version.
10
11
   This program is distributed in the hope that it will be useful,
12
   but WITHOUT ANY WARRANTY; without even the implied warranty of
13
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
   GNU General Public License for more details.
15
16
   You should have received a copy of the GNU General Public License
17
   along with this program; if not, write to the Free Software
18
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19
   MA 02110-1301, USA.  */
20
21
#include "sysdep.h"
22
#include "bfd.h"
23
#include "libbfd.h"
24
#include "elf-bfd.h"
25
#include "elf/m32r.h"
26
27
#define NOP_INSN    0x7000
28
#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30
/* Use REL instead of RELA to save space.
31
   This only saves space in libraries and object files, but perhaps
32
   relocs will be put in ROM?  All in all though, REL relocs are a pain
33
   to work with.  */
34
/* #define USE_REL  1
35
36
#ifndef USE_REL
37
#define USE_REL 0
38
#endif */
39
/* Use RELA. But use REL to link old objects for backwords compatibility.  */
40
41
/* Functions for the M32R ELF linker.  */
42
43
/* The name of the dynamic interpreter.  This is put in the .interp
44
   section.  */
45
46
0
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
47
48
/* The nop opcode we use.  */
49
50
#define M32R_NOP 0x7000f000
51
52
#define PLT_EMPTY   0x10101010  /* RIE  -> RIE */
53
54
/* The size in bytes of an entry in the procedure linkage table.  */
55
56
0
#define PLT_ENTRY_SIZE 20
57
#define PLT_HEADER_SIZE 20
58
59
/* The first one entries in a procedure linkage table are reserved,
60
   and the initial contents are unimportant (we zero them out).
61
   Subsequent entries look like this. */
62
63
#define PLT0_ENTRY_WORD0  0xd6c00000  /* seth r6, #high(.got+4)    */
64
#define PLT0_ENTRY_WORD1  0x86e60000  /* or3  r6, r6, #low(.got)+4)    */
65
#define PLT0_ENTRY_WORD2  0x24e626c6  /* ld r4, @r6+    -> ld r6, @r6  */
66
#define PLT0_ENTRY_WORD3  0x1fc6f000  /* jmp  r6      || pnop    */
67
#define PLT0_ENTRY_WORD4  PLT_EMPTY /* RIE       -> RIE    */
68
69
#define PLT0_PIC_ENTRY_WORD0  0xa4cc0004 /* ld   r4, @(4,r12)      */
70
#define PLT0_PIC_ENTRY_WORD1  0xa6cc0008 /* ld   r6, @(8,r12)      */
71
#define PLT0_PIC_ENTRY_WORD2  0x1fc6f000 /* jmp  r6     || nop     */
72
#define PLT0_PIC_ENTRY_WORD3  PLT_EMPTY  /* RIE       -> RIE     */
73
#define PLT0_PIC_ENTRY_WORD4  PLT_EMPTY  /* RIE       -> RIE     */
74
75
#define PLT_ENTRY_WORD0  0xe6000000 /* ld24 r6, .name_in_GOT        */
76
#define PLT_ENTRY_WORD1  0x06acf000 /* add  r6, r12      || nop     */
77
#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT)     */
78
#define PLT_ENTRY_WORD1b 0x86e60000 /* or3  r6, r6, #low(.name_in_GOT)      */
79
#define PLT_ENTRY_WORD2  0x26c61fc6 /* ld  r6, @r6       -> jmp r6      */
80
#define PLT_ENTRY_WORD3  0xe5000000 /* ld24 r5, $offset         */
81
#define PLT_ENTRY_WORD4  0xff000000 /* bra  .plt0.          */
82
83
84
/* Utility to actually perform an R_M32R_10_PCREL reloc.  */
85
86
static bfd_reloc_status_type
87
m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88
          reloc_howto_type *howto,
89
          asection *input_section,
90
          bfd_byte *data,
91
          bfd_vma offset,
92
          asection *symbol_section ATTRIBUTE_UNUSED,
93
          bfd_vma symbol_value,
94
          bfd_vma addend)
95
0
{
96
0
  bfd_signed_vma relocation;
97
0
  unsigned long x;
98
0
  bfd_reloc_status_type status;
99
100
  /* Sanity check the address (offset in section).  */
101
0
  if (offset > bfd_get_section_limit (abfd, input_section))
102
0
    return bfd_reloc_outofrange;
103
104
0
  relocation = symbol_value + addend;
105
  /* Make it pc relative.  */
106
0
  relocation -= (input_section->output_section->vma
107
0
     + input_section->output_offset);
108
  /* These jumps mask off the lower two bits of the current address
109
     before doing pcrel calculations.  */
110
0
  relocation -= (offset & -(bfd_vma) 4);
111
112
0
  if (relocation < -0x200 || relocation > 0x1ff)
113
0
    status = bfd_reloc_overflow;
114
0
  else
115
0
    status = bfd_reloc_ok;
116
117
0
  x = bfd_get_16 (abfd, data + offset);
118
0
  relocation >>= howto->rightshift;
119
0
  relocation <<= howto->bitpos;
120
0
  x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121
0
  bfd_put_16 (abfd, (bfd_vma) x, data + offset);
122
123
0
  return status;
124
0
}
125
126
/* Handle the R_M32R_10_PCREL reloc.  */
127
128
static bfd_reloc_status_type
129
m32r_elf_10_pcrel_reloc (bfd * abfd,
130
       arelent * reloc_entry,
131
       asymbol * symbol,
132
       void * data,
133
       asection * input_section,
134
       bfd * output_bfd,
135
       char ** error_message ATTRIBUTE_UNUSED)
136
0
{
137
  /* This part is from bfd_elf_generic_reloc.  */
138
0
  if (output_bfd != NULL
139
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
140
0
      && (! reloc_entry->howto->partial_inplace
141
0
    || reloc_entry->addend == 0))
142
0
    {
143
0
      reloc_entry->address += input_section->output_offset;
144
0
      return bfd_reloc_ok;
145
0
    }
146
147
0
  if (output_bfd != NULL)
148
    /* FIXME: See bfd_perform_relocation.  Is this right?  */
149
0
    return bfd_reloc_continue;
150
151
0
  return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152
0
             input_section,
153
0
             data, reloc_entry->address,
154
0
             symbol->section,
155
0
             (symbol->value
156
0
              + symbol->section->output_section->vma
157
0
              + symbol->section->output_offset),
158
0
             reloc_entry->addend);
159
0
}
160
161
/* Do generic partial_inplace relocation.
162
   This is a local replacement for bfd_elf_generic_reloc.  */
163
164
static bfd_reloc_status_type
165
m32r_elf_generic_reloc (bfd *input_bfd,
166
      arelent *reloc_entry,
167
      asymbol *symbol,
168
      void * data,
169
      asection *input_section,
170
      bfd *output_bfd,
171
      char **error_message ATTRIBUTE_UNUSED)
172
1
{
173
1
  bfd_reloc_status_type ret;
174
1
  bfd_vma relocation;
175
1
  bfd_byte *inplace_address;
176
177
  /* This part is from bfd_elf_generic_reloc.
178
     If we're relocating, and this an external symbol, we don't want
179
     to change anything.  */
180
1
  if (output_bfd != NULL
181
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
182
0
      && reloc_entry->addend == 0)
183
0
    {
184
0
      reloc_entry->address += input_section->output_offset;
185
0
      return bfd_reloc_ok;
186
0
    }
187
188
  /* Now do the reloc in the usual way.
189
     ??? It would be nice to call bfd_elf_generic_reloc here,
190
     but we have partial_inplace set.  bfd_elf_generic_reloc will
191
     pass the handling back to bfd_install_relocation which will install
192
     a section relative addend which is wrong.  */
193
194
  /* Sanity check the address (offset in section).  */
195
1
  if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196
0
    return bfd_reloc_outofrange;
197
198
1
  ret = bfd_reloc_ok;
199
1
  if (bfd_is_und_section (symbol->section)
200
0
      && output_bfd == NULL)
201
0
    ret = bfd_reloc_undefined;
202
203
1
  if (bfd_is_com_section (symbol->section)
204
1
      || output_bfd != NULL)
205
0
    relocation = 0;
206
1
  else
207
1
    relocation = symbol->value;
208
209
  /* Only do this for a final link.  */
210
1
  if (output_bfd == NULL)
211
1
    {
212
1
      relocation += symbol->section->output_section->vma;
213
1
      relocation += symbol->section->output_offset;
214
1
    }
215
216
1
  relocation += reloc_entry->addend;
217
1
  inplace_address = (bfd_byte *) data + reloc_entry->address;
218
219
1
#define DOIT(x)           \
220
1
  x = ( (x & ~reloc_entry->howto->dst_mask) |   \
221
1
  (((x & reloc_entry->howto->src_mask) +  relocation) & \
222
1
  reloc_entry->howto->dst_mask))
223
224
1
  switch (bfd_get_reloc_size (reloc_entry->howto))
225
1
    {
226
0
    case 2:
227
0
      {
228
0
  short x = bfd_get_16 (input_bfd, inplace_address);
229
0
  DOIT (x);
230
0
  bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231
0
      }
232
0
      break;
233
1
    case 4:
234
1
      {
235
1
  unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236
1
  DOIT (x);
237
1
  bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238
1
      }
239
1
      break;
240
0
    default:
241
0
      BFD_ASSERT (0);
242
1
    }
243
244
1
  if (output_bfd != NULL)
245
0
    reloc_entry->address += input_section->output_offset;
246
247
1
  return ret;
248
1
}
249
250
/* Handle the R_M32R_SDA16 reloc.
251
   This reloc is used to compute the address of objects in the small data area
252
   and to perform loads and stores from that area.
253
   The lower 16 bits are sign extended and added to the register specified
254
   in the instruction, which is assumed to point to _SDA_BASE_.  */
255
256
static bfd_reloc_status_type
257
m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258
          arelent *reloc_entry,
259
          asymbol *symbol,
260
          void * data ATTRIBUTE_UNUSED,
261
          asection *input_section,
262
          bfd *output_bfd,
263
          char **error_message ATTRIBUTE_UNUSED)
264
0
{
265
  /* This part is from bfd_elf_generic_reloc.  */
266
0
  if (output_bfd != NULL
267
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
268
0
      && (! reloc_entry->howto->partial_inplace
269
0
    || reloc_entry->addend == 0))
270
0
    {
271
0
      reloc_entry->address += input_section->output_offset;
272
0
      return bfd_reloc_ok;
273
0
    }
274
275
0
  if (output_bfd != NULL)
276
    /* FIXME: See bfd_perform_relocation.  Is this right?  */
277
0
    return bfd_reloc_continue;
278
279
  /* FIXME: not sure what to do here yet.  But then again, the linker
280
     may never call us.  */
281
0
  abort ();
282
0
}
283
284

285
/* Handle the R_M32R_HI16_[SU]LO relocs.
286
   HI16_SLO is for the add3 and load/store with displacement instructions.
287
   HI16_ULO is for the or3 instruction.
288
   For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289
   the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290
   we must add one to the high 16 bytes (which will get subtracted off when
291
   the low 16 bits are added).
292
   These relocs have to be done in combination with an R_M32R_LO16 reloc
293
   because there is a carry from the LO16 to the HI16.  Here we just save
294
   the information we need; we do the actual relocation when we see the LO16.
295
   This code is copied from the elf32-mips.c.  We also support an arbitrary
296
   number of HI16 relocs to be associated with a single LO16 reloc.  The
297
   assembler sorts the relocs to ensure each HI16 immediately precedes its
298
   LO16.  However if there are multiple copies, the assembler may not find
299
   the real LO16 so it picks the first one it finds.  */
300
301
struct m32r_hi16
302
{
303
  struct m32r_hi16 *next;
304
  bfd_byte *addr;
305
  bfd_vma addend;
306
};
307
308
/* FIXME: This should not be a static variable.  */
309
310
static struct m32r_hi16 *m32r_hi16_list;
311
312
static bfd_reloc_status_type
313
m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314
         arelent *reloc_entry,
315
         asymbol *symbol,
316
         void * data,
317
         asection *input_section,
318
         bfd *output_bfd,
319
         char **error_message ATTRIBUTE_UNUSED)
320
0
{
321
0
  bfd_reloc_status_type ret;
322
0
  bfd_vma relocation;
323
0
  struct m32r_hi16 *n;
324
325
  /* This part is from bfd_elf_generic_reloc.
326
     If we're relocating, and this an external symbol, we don't want
327
     to change anything.  */
328
0
  if (output_bfd != NULL
329
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
330
0
      && reloc_entry->addend == 0)
331
0
    {
332
0
      reloc_entry->address += input_section->output_offset;
333
0
      return bfd_reloc_ok;
334
0
    }
335
336
  /* Sanity check the address (offset in section).  */
337
0
  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338
0
    return bfd_reloc_outofrange;
339
340
0
  ret = bfd_reloc_ok;
341
0
  if (bfd_is_und_section (symbol->section)
342
0
      && output_bfd == NULL)
343
0
    ret = bfd_reloc_undefined;
344
345
0
  if (bfd_is_com_section (symbol->section))
346
0
    relocation = 0;
347
0
  else
348
0
    relocation = symbol->value;
349
350
0
  relocation += symbol->section->output_section->vma;
351
0
  relocation += symbol->section->output_offset;
352
0
  relocation += reloc_entry->addend;
353
354
  /* Save the information, and let LO16 do the actual relocation.  */
355
0
  n = bfd_malloc ((bfd_size_type) sizeof *n);
356
0
  if (n == NULL)
357
0
    return bfd_reloc_outofrange;
358
0
  n->addr = (bfd_byte *) data + reloc_entry->address;
359
0
  n->addend = relocation;
360
0
  n->next = m32r_hi16_list;
361
0
  m32r_hi16_list = n;
362
363
0
  if (output_bfd != NULL)
364
0
    reloc_entry->address += input_section->output_offset;
365
366
0
  return ret;
367
0
}
368
369
/* Handle an M32R ELF HI16 reloc.  */
370
371
static void
372
m32r_elf_relocate_hi16 (bfd *input_bfd,
373
      int type,
374
      Elf_Internal_Rela *relhi,
375
      Elf_Internal_Rela *rello,
376
      bfd_byte *contents,
377
      bfd_vma addend)
378
0
{
379
0
  unsigned long insn;
380
0
  bfd_vma addlo;
381
382
0
  insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383
384
0
  addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385
0
  if (type == R_M32R_HI16_SLO)
386
0
    addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387
0
  else
388
0
    addlo &= 0xffff;
389
390
0
  addend += ((insn & 0xffff) << 16) + addlo;
391
392
  /* Reaccount for sign extension of low part.  */
393
0
  if (type == R_M32R_HI16_SLO
394
0
      && (addend & 0x8000) != 0)
395
0
    addend += 0x10000;
396
397
0
  bfd_put_32 (input_bfd,
398
0
        (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399
0
        contents + relhi->r_offset);
400
0
}
401
402
/* Do an R_M32R_LO16 relocation.  This is a straightforward 16 bit
403
   inplace relocation; this function exists in order to do the
404
   R_M32R_HI16_[SU]LO relocation described above.  */
405
406
static bfd_reloc_status_type
407
m32r_elf_lo16_reloc (bfd *input_bfd,
408
         arelent *reloc_entry,
409
         asymbol *symbol,
410
         void * data,
411
         asection *input_section,
412
         bfd *output_bfd,
413
         char **error_message)
414
1
{
415
  /* This part is from bfd_elf_generic_reloc.
416
     If we're relocating, and this an external symbol, we don't want
417
     to change anything.  */
418
1
  if (output_bfd != NULL
419
0
      && (symbol->flags & BSF_SECTION_SYM) == 0
420
0
      && reloc_entry->addend == 0)
421
0
    {
422
0
      reloc_entry->address += input_section->output_offset;
423
0
      return bfd_reloc_ok;
424
0
    }
425
426
1
  if (m32r_hi16_list != NULL)
427
0
    {
428
0
      struct m32r_hi16 *l;
429
430
0
      l = m32r_hi16_list;
431
0
      while (l != NULL)
432
0
  {
433
0
    unsigned long insn;
434
0
    unsigned long val;
435
0
    unsigned long vallo;
436
0
    struct m32r_hi16 *next;
437
438
    /* Do the HI16 relocation.  Note that we actually don't need
439
       to know anything about the LO16 itself, except where to
440
       find the low 16 bits of the addend needed by the LO16.  */
441
0
    insn = bfd_get_32 (input_bfd, l->addr);
442
0
    vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443
0
       & 0xffff) ^ 0x8000) - 0x8000;
444
0
    val = ((insn & 0xffff) << 16) + vallo;
445
0
    val += l->addend;
446
447
    /* Reaccount for sign extension of low part.  */
448
0
    if ((val & 0x8000) != 0)
449
0
      val += 0x10000;
450
451
0
    insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452
0
    bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453
454
0
    next = l->next;
455
0
    free (l);
456
0
    l = next;
457
0
  }
458
459
0
      m32r_hi16_list = NULL;
460
0
    }
461
462
  /* Now do the LO16 reloc in the usual way.
463
     ??? It would be nice to call bfd_elf_generic_reloc here,
464
     but we have partial_inplace set.  bfd_elf_generic_reloc will
465
     pass the handling back to bfd_install_relocation which will install
466
     a section relative addend which is wrong.  */
467
1
  return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468
1
        input_section, output_bfd, error_message);
469
1
}
470
471

472
static reloc_howto_type m32r_elf_howto_table[] =
473
{
474
  /* This reloc does nothing.  */
475
  HOWTO (R_M32R_NONE,   /* type */
476
   0,     /* rightshift */
477
   0,     /* size */
478
   0,     /* bitsize */
479
   false,     /* pc_relative */
480
   0,     /* bitpos */
481
   complain_overflow_dont, /* complain_on_overflow */
482
   bfd_elf_generic_reloc, /* special_function */
483
   "R_M32R_NONE",   /* name */
484
   false,     /* partial_inplace */
485
   0,     /* src_mask */
486
   0,     /* dst_mask */
487
   false),    /* pcrel_offset */
488
489
  /* A 16 bit absolute relocation.  */
490
  HOWTO (R_M32R_16,   /* type */
491
   0,     /* rightshift */
492
   2,     /* size */
493
   16,      /* bitsize */
494
   false,     /* pc_relative */
495
   0,     /* bitpos */
496
   complain_overflow_bitfield, /* complain_on_overflow */
497
   m32r_elf_generic_reloc,/* special_function */
498
   "R_M32R_16",   /* name */
499
   true,      /* partial_inplace */
500
   0xffff,    /* src_mask */
501
   0xffff,    /* dst_mask */
502
   false),    /* pcrel_offset */
503
504
  /* A 32 bit absolute relocation.  */
505
  HOWTO (R_M32R_32,   /* type */
506
   0,     /* rightshift */
507
   4,     /* size */
508
   32,      /* bitsize */
509
   false,     /* pc_relative */
510
   0,     /* bitpos */
511
   complain_overflow_bitfield, /* complain_on_overflow */
512
   m32r_elf_generic_reloc,/* special_function */
513
   "R_M32R_32",   /* name */
514
   true,      /* partial_inplace */
515
   0xffffffff,    /* src_mask */
516
   0xffffffff,    /* dst_mask */
517
   false),    /* pcrel_offset */
518
519
  /* A 24 bit address.  */
520
  HOWTO (R_M32R_24,   /* type */
521
   0,     /* rightshift */
522
   4,     /* size */
523
   24,      /* bitsize */
524
   false,     /* pc_relative */
525
   0,     /* bitpos */
526
   complain_overflow_unsigned, /* complain_on_overflow */
527
   m32r_elf_generic_reloc,/* special_function */
528
   "R_M32R_24",   /* name */
529
   true,      /* partial_inplace */
530
   0xffffff,    /* src_mask */
531
   0xffffff,    /* dst_mask */
532
   false),    /* pcrel_offset */
533
534
  /* An PC Relative 10-bit relocation, shifted by 2.
535
     This reloc is complicated because relocations are relative to pc & -4.
536
     i.e. branches in the right insn slot use the address of the left insn
537
     slot for pc.  */
538
  /* ??? It's not clear whether this should have partial_inplace set or not.
539
     Branch relaxing in the assembler can store the addend in the insn,
540
     and if bfd_install_relocation gets called the addend may get added
541
     again.  */
542
  HOWTO (R_M32R_10_PCREL, /* type */
543
   2,     /* rightshift */
544
   2,     /* size */
545
   10,      /* bitsize */
546
   true,      /* pc_relative */
547
   0,     /* bitpos */
548
   complain_overflow_signed, /* complain_on_overflow */
549
   m32r_elf_10_pcrel_reloc, /* special_function */
550
   "R_M32R_10_PCREL", /* name */
551
   false,     /* partial_inplace */
552
   0xff,      /* src_mask */
553
   0xff,      /* dst_mask */
554
   true),     /* pcrel_offset */
555
556
  /* A relative 18 bit relocation, right shifted by 2.  */
557
  HOWTO (R_M32R_18_PCREL, /* type */
558
   2,     /* rightshift */
559
   4,     /* size */
560
   16,      /* bitsize */
561
   true,      /* pc_relative */
562
   0,     /* bitpos */
563
   complain_overflow_signed, /* complain_on_overflow */
564
   bfd_elf_generic_reloc, /* special_function */
565
   "R_M32R_18_PCREL", /* name */
566
   false,     /* partial_inplace */
567
   0xffff,    /* src_mask */
568
   0xffff,    /* dst_mask */
569
   true),     /* pcrel_offset */
570
571
  /* A relative 26 bit relocation, right shifted by 2.  */
572
  /* ??? It's not clear whether this should have partial_inplace set or not.
573
     Branch relaxing in the assembler can store the addend in the insn,
574
     and if bfd_install_relocation gets called the addend may get added
575
     again.  */
576
  HOWTO (R_M32R_26_PCREL, /* type */
577
   2,     /* rightshift */
578
   4,     /* size */
579
   26,      /* bitsize */
580
   true,      /* pc_relative */
581
   0,     /* bitpos */
582
   complain_overflow_signed, /* complain_on_overflow */
583
   bfd_elf_generic_reloc, /* special_function */
584
   "R_M32R_26_PCREL", /* name */
585
   false,     /* partial_inplace */
586
   0xffffff,    /* src_mask */
587
   0xffffff,    /* dst_mask */
588
   true),     /* pcrel_offset */
589
590
  /* High 16 bits of address when lower 16 is or'd in.  */
591
  HOWTO (R_M32R_HI16_ULO, /* type */
592
   16,      /* rightshift */
593
   4,     /* size */
594
   16,      /* bitsize */
595
   false,     /* pc_relative */
596
   0,     /* bitpos */
597
   complain_overflow_dont, /* complain_on_overflow */
598
   m32r_elf_hi16_reloc, /* special_function */
599
   "R_M32R_HI16_ULO", /* name */
600
   true,      /* partial_inplace */
601
   0x0000ffff,    /* src_mask */
602
   0x0000ffff,    /* dst_mask */
603
   false),    /* pcrel_offset */
604
605
  /* High 16 bits of address when lower 16 is added in.  */
606
  HOWTO (R_M32R_HI16_SLO, /* type */
607
   16,      /* rightshift */
608
   4,     /* size */
609
   16,      /* bitsize */
610
   false,     /* pc_relative */
611
   0,     /* bitpos */
612
   complain_overflow_dont, /* complain_on_overflow */
613
   m32r_elf_hi16_reloc, /* special_function */
614
   "R_M32R_HI16_SLO", /* name */
615
   true,      /* partial_inplace */
616
   0x0000ffff,    /* src_mask */
617
   0x0000ffff,    /* dst_mask */
618
   false),    /* pcrel_offset */
619
620
  /* Lower 16 bits of address.  */
621
  HOWTO (R_M32R_LO16,   /* type */
622
   0,     /* rightshift */
623
   4,     /* size */
624
   16,      /* bitsize */
625
   false,     /* pc_relative */
626
   0,     /* bitpos */
627
   complain_overflow_dont, /* complain_on_overflow */
628
   m32r_elf_lo16_reloc, /* special_function */
629
   "R_M32R_LO16",   /* name */
630
   true,      /* partial_inplace */
631
   0x0000ffff,    /* src_mask */
632
   0x0000ffff,    /* dst_mask */
633
   false),    /* pcrel_offset */
634
635
  /* Small data area 16 bits offset.  */
636
  HOWTO (R_M32R_SDA16,    /* type */
637
   0,     /* rightshift */
638
   4,     /* size */
639
   16,      /* bitsize */
640
   false,     /* pc_relative */
641
   0,     /* bitpos */
642
   complain_overflow_signed, /* complain_on_overflow */
643
   m32r_elf_sda16_reloc,  /* special_function */
644
   "R_M32R_SDA16",  /* name */
645
   true,      /* partial_inplace */  /* FIXME: correct? */
646
   0x0000ffff,    /* src_mask */
647
   0x0000ffff,    /* dst_mask */
648
   false),    /* pcrel_offset */
649
650
  /* GNU extension to record C++ vtable hierarchy.  */
651
  HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652
   0,     /* rightshift */
653
   4,     /* size */
654
   0,     /* bitsize */
655
   false,     /* pc_relative */
656
   0,     /* bitpos */
657
   complain_overflow_dont, /* complain_on_overflow */
658
   NULL,      /* special_function */
659
   "R_M32R_GNU_VTINHERIT", /* name */
660
   false,     /* partial_inplace */
661
   0,     /* src_mask */
662
   0,     /* dst_mask */
663
   false),    /* pcrel_offset */
664
665
  /* GNU extension to record C++ vtable member usage.  */
666
  HOWTO (R_M32R_GNU_VTENTRY,   /* type */
667
   0,     /* rightshift */
668
   4,     /* size */
669
   0,     /* bitsize */
670
   false,     /* pc_relative */
671
   0,     /* bitpos */
672
   complain_overflow_dont, /* complain_on_overflow */
673
   _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
674
   "R_M32R_GNU_VTENTRY",   /* name */
675
   false,     /* partial_inplace */
676
   0,     /* src_mask */
677
   0,     /* dst_mask */
678
   false),    /* pcrel_offset */
679
680
  EMPTY_HOWTO (13),
681
  EMPTY_HOWTO (14),
682
  EMPTY_HOWTO (15),
683
  EMPTY_HOWTO (16),
684
  EMPTY_HOWTO (17),
685
  EMPTY_HOWTO (18),
686
  EMPTY_HOWTO (19),
687
  EMPTY_HOWTO (20),
688
  EMPTY_HOWTO (21),
689
  EMPTY_HOWTO (22),
690
  EMPTY_HOWTO (23),
691
  EMPTY_HOWTO (24),
692
  EMPTY_HOWTO (25),
693
  EMPTY_HOWTO (26),
694
  EMPTY_HOWTO (27),
695
  EMPTY_HOWTO (28),
696
  EMPTY_HOWTO (29),
697
  EMPTY_HOWTO (30),
698
  EMPTY_HOWTO (31),
699
  EMPTY_HOWTO (32),
700
701
  /* A 16 bit absolute relocation.  */
702
  HOWTO (R_M32R_16_RELA,  /* type */
703
   0,     /* rightshift */
704
   2,     /* size */
705
   16,      /* bitsize */
706
   false,     /* pc_relative */
707
   0,     /* bitpos */
708
   complain_overflow_bitfield, /* complain_on_overflow */
709
   bfd_elf_generic_reloc, /* special_function */
710
   "R_M32R_16_RELA",  /* name */
711
   false,     /* partial_inplace */
712
   0xffff,    /* src_mask */
713
   0xffff,    /* dst_mask */
714
   false),    /* pcrel_offset */
715
716
  /* A 32 bit absolute relocation.  */
717
  HOWTO (R_M32R_32_RELA,  /* type */
718
   0,     /* rightshift */
719
   4,     /* size */
720
   32,      /* bitsize */
721
   false,     /* pc_relative */
722
   0,     /* bitpos */
723
   complain_overflow_bitfield, /* complain_on_overflow */
724
   bfd_elf_generic_reloc,/* special_function */
725
   "R_M32R_32_RELA",    /* name */
726
   false,     /* partial_inplace */
727
   0xffffffff,    /* src_mask */
728
   0xffffffff,    /* dst_mask */
729
   false),    /* pcrel_offset */
730
731
  /* A 24 bit address.  */
732
  HOWTO (R_M32R_24_RELA,  /* type */
733
   0,     /* rightshift */
734
   4,     /* size */
735
   24,      /* bitsize */
736
   false,     /* pc_relative */
737
   0,     /* bitpos */
738
   complain_overflow_unsigned, /* complain_on_overflow */
739
   bfd_elf_generic_reloc,/* special_function */
740
   "R_M32R_24_RELA",  /* name */
741
   false,     /* partial_inplace */
742
   0xffffff,    /* src_mask */
743
   0xffffff,    /* dst_mask */
744
   false),    /* pcrel_offset */
745
746
  HOWTO (R_M32R_10_PCREL_RELA,  /* type */
747
   2,     /* rightshift */
748
   2,     /* size */
749
   10,      /* bitsize */
750
   true,      /* pc_relative */
751
   0,     /* bitpos */
752
   complain_overflow_signed, /* complain_on_overflow */
753
   m32r_elf_10_pcrel_reloc, /* special_function */
754
   "R_M32R_10_PCREL_RELA",/* name */
755
   false,     /* partial_inplace */
756
   0xff,      /* src_mask */
757
   0xff,      /* dst_mask */
758
   true),     /* pcrel_offset */
759
760
  /* A relative 18 bit relocation, right shifted by 2.  */
761
  HOWTO (R_M32R_18_PCREL_RELA,  /* type */
762
   2,     /* rightshift */
763
   4,     /* size */
764
   16,      /* bitsize */
765
   true,      /* pc_relative */
766
   0,     /* bitpos */
767
   complain_overflow_signed, /* complain_on_overflow */
768
   bfd_elf_generic_reloc, /* special_function */
769
   "R_M32R_18_PCREL_RELA",/* name */
770
   false,     /* partial_inplace */
771
   0xffff,    /* src_mask */
772
   0xffff,    /* dst_mask */
773
   true),     /* pcrel_offset */
774
775
  /* A relative 26 bit relocation, right shifted by 2.  */
776
  HOWTO (R_M32R_26_PCREL_RELA,  /* type */
777
   2,     /* rightshift */
778
   4,     /* size */
779
   26,      /* bitsize */
780
   true,      /* pc_relative */
781
   0,     /* bitpos */
782
   complain_overflow_signed, /* complain_on_overflow */
783
   bfd_elf_generic_reloc, /* special_function */
784
   "R_M32R_26_PCREL_RELA",/* name */
785
   false,     /* partial_inplace */
786
   0xffffff,    /* src_mask */
787
   0xffffff,    /* dst_mask */
788
   true),     /* pcrel_offset */
789
790
  /* High 16 bits of address when lower 16 is or'd in.  */
791
  HOWTO (R_M32R_HI16_ULO_RELA,  /* type */
792
   16,      /* rightshift */
793
   4,     /* size */
794
   16,      /* bitsize */
795
   false,     /* pc_relative */
796
   0,     /* bitpos */
797
   complain_overflow_dont, /* complain_on_overflow */
798
   bfd_elf_generic_reloc, /* special_function */
799
   "R_M32R_HI16_ULO_RELA",/* name */
800
   false,     /* partial_inplace */
801
   0x0000ffff,    /* src_mask */
802
   0x0000ffff,    /* dst_mask */
803
   false),    /* pcrel_offset */
804
805
  /* High 16 bits of address when lower 16 is added in.  */
806
  HOWTO (R_M32R_HI16_SLO_RELA,  /* type */
807
   16,      /* rightshift */
808
   4,     /* size */
809
   16,      /* bitsize */
810
   false,     /* pc_relative */
811
   0,     /* bitpos */
812
   complain_overflow_dont, /* complain_on_overflow */
813
   bfd_elf_generic_reloc, /* special_function */
814
   "R_M32R_HI16_SLO_RELA",/* name */
815
   false,     /* partial_inplace */
816
   0x0000ffff,    /* src_mask */
817
   0x0000ffff,    /* dst_mask */
818
   false),    /* pcrel_offset */
819
820
  /* Lower 16 bits of address.  */
821
  HOWTO (R_M32R_LO16_RELA,  /* type */
822
   0,     /* rightshift */
823
   4,     /* size */
824
   16,      /* bitsize */
825
   false,     /* pc_relative */
826
   0,     /* bitpos */
827
   complain_overflow_dont, /* complain_on_overflow */
828
   bfd_elf_generic_reloc, /* special_function */
829
   "R_M32R_LO16_RELA",  /* name */
830
   false,     /* partial_inplace */
831
   0x0000ffff,    /* src_mask */
832
   0x0000ffff,    /* dst_mask */
833
   false),    /* pcrel_offset */
834
835
  /* Small data area 16 bits offset.  */
836
  HOWTO (R_M32R_SDA16_RELA, /* type */
837
   0,     /* rightshift */
838
   4,     /* size */
839
   16,      /* bitsize */
840
   false,     /* pc_relative */
841
   0,     /* bitpos */
842
   complain_overflow_signed, /* complain_on_overflow */
843
   bfd_elf_generic_reloc, /* special_function */
844
   "R_M32R_SDA16_RELA", /* name */
845
   true,      /* partial_inplace */  /* FIXME: correct? */
846
   0x0000ffff,    /* src_mask */
847
   0x0000ffff,    /* dst_mask */
848
   false),    /* pcrel_offset */
849
850
  /* GNU extension to record C++ vtable hierarchy.  */
851
  HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852
   0,     /* rightshift */
853
   4,     /* size */
854
   0,     /* bitsize */
855
   false,     /* pc_relative */
856
   0,     /* bitpos */
857
   complain_overflow_dont, /* complain_on_overflow */
858
   NULL,      /* special_function */
859
   "R_M32R_RELA_GNU_VTINHERIT", /* name */
860
   false,     /* partial_inplace */
861
   0,     /* src_mask */
862
   0,     /* dst_mask */
863
   false),    /* pcrel_offset */
864
865
  /* GNU extension to record C++ vtable member usage.  */
866
  HOWTO (R_M32R_RELA_GNU_VTENTRY,     /* type */
867
   0,     /* rightshift */
868
   4,     /* size */
869
   0,     /* bitsize */
870
   false,     /* pc_relative */
871
   0,     /* bitpos */
872
   complain_overflow_dont, /* complain_on_overflow */
873
   _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
874
   "R_M32R_RELA_GNU_VTENTRY",   /* name */
875
   false,     /* partial_inplace */
876
   0,     /* src_mask */
877
   0,     /* dst_mask */
878
   false),    /* pcrel_offset */
879
880
  /* A 32 bit PC relative relocation.  */
881
  HOWTO (R_M32R_REL32,    /* type */
882
   0,     /* rightshift */
883
   4,     /* size */
884
   32,      /* bitsize */
885
   true,      /* pc_relative */
886
   0,     /* bitpos */
887
   complain_overflow_bitfield, /* complain_on_overflow */
888
   bfd_elf_generic_reloc,/* special_function */
889
   "R_M32R_REL32",    /* name */
890
   false,     /* partial_inplace */
891
   0xffffffff,    /* src_mask */
892
   0xffffffff,    /* dst_mask */
893
   true),     /* pcrel_offset */
894
895
  EMPTY_HOWTO (46),
896
  EMPTY_HOWTO (47),
897
898
  /* Like R_M32R_24, but referring to the GOT table entry for
899
     the symbol.  */
900
  HOWTO (R_M32R_GOT24,    /* type */
901
   0,     /* rightshift */
902
   4,     /* size */
903
   24,      /* bitsize */
904
   false,     /* pc_relative */
905
   0,     /* bitpos */
906
   complain_overflow_unsigned, /* complain_on_overflow */
907
   bfd_elf_generic_reloc, /* special_function */
908
   "R_M32R_GOT24",  /* name */
909
   false,     /* partial_inplace */
910
   0xffffff,    /* src_mask */
911
   0xffffff,    /* dst_mask */
912
   false),    /* pcrel_offset */
913
914
  /* Like R_M32R_PCREL, but referring to the procedure linkage table
915
     entry for the symbol.  */
916
  HOWTO (R_M32R_26_PLTREL,  /* type */
917
   2,     /* rightshift */
918
   4,     /* size */
919
   24,      /* bitsize */
920
   true,      /* pc_relative */
921
   0,     /* bitpos */
922
   complain_overflow_signed, /* complain_on_overflow */
923
   bfd_elf_generic_reloc, /* special_function */
924
   "R_M32R_26_PLTREL",  /* name */
925
   false,     /* partial_inplace */
926
   0xffffff,    /* src_mask */
927
   0xffffff,    /* dst_mask */
928
   true),     /* pcrel_offset */
929
930
  /* This is used only by the dynamic linker.  The symbol should exist
931
     both in the object being run and in some shared library.  The
932
     dynamic linker copies the data addressed by the symbol from the
933
     shared library into the object, because the object being
934
     run has to have the data at some particular address.  */
935
  HOWTO (R_M32R_COPY,   /* type */
936
   0,     /* rightshift */
937
   4,     /* size */
938
   32,      /* bitsize */
939
   false,     /* pc_relative */
940
   0,     /* bitpos */
941
   complain_overflow_bitfield, /* complain_on_overflow */
942
   bfd_elf_generic_reloc, /* special_function */
943
   "R_M32R_COPY",   /* name */
944
   false,     /* partial_inplace */
945
   0xffffffff,    /* src_mask */
946
   0xffffffff,    /* dst_mask */
947
   false),    /* pcrel_offset */
948
949
  /* Like R_M32R_24, but used when setting global offset table
950
     entries.  */
951
  HOWTO (R_M32R_GLOB_DAT, /* type */
952
   0,     /* rightshift */
953
   4,     /* size */
954
   32,      /* bitsize */
955
   false,     /* pc_relative */
956
   0,     /* bitpos */
957
   complain_overflow_bitfield, /* complain_on_overflow */
958
   bfd_elf_generic_reloc, /* special_function */
959
   "R_M32R_GLOB_DAT", /* name */
960
   false,     /* partial_inplace */
961
   0xffffffff,    /* src_mask */
962
   0xffffffff,    /* dst_mask */
963
   false),    /* pcrel_offset */
964
965
  /* Marks a procedure linkage table entry for a symbol.  */
966
  HOWTO (R_M32R_JMP_SLOT, /* type */
967
   0,     /* rightshift */
968
   4,     /* size */
969
   32,      /* bitsize */
970
   false,     /* pc_relative */
971
   0,     /* bitpos */
972
   complain_overflow_bitfield, /* complain_on_overflow */
973
   bfd_elf_generic_reloc, /* special_function */
974
   "R_M32R_JMP_SLOT", /* name */
975
   false,     /* partial_inplace */
976
   0xffffffff,    /* src_mask */
977
   0xffffffff,    /* dst_mask */
978
   false),    /* pcrel_offset */
979
980
  /* Used only by the dynamic linker.  When the object is run, this
981
     longword is set to the load address of the object, plus the
982
     addend.  */
983
  HOWTO (R_M32R_RELATIVE, /* type */
984
   0,     /* rightshift */
985
   4,     /* size */
986
   32,      /* bitsize */
987
   false,     /* pc_relative */
988
   0,     /* bitpos */
989
   complain_overflow_bitfield, /* complain_on_overflow */
990
   bfd_elf_generic_reloc, /* special_function */
991
   "R_M32R_RELATIVE", /* name */
992
   false,     /* partial_inplace */
993
   0xffffffff,    /* src_mask */
994
   0xffffffff,    /* dst_mask */
995
   false),    /* pcrel_offset */
996
997
  HOWTO (R_M32R_GOTOFF,   /* type */
998
   0,     /* rightshift */
999
   4,     /* size */
1000
   24,      /* bitsize */
1001
   false,     /* pc_relative */
1002
   0,     /* bitpos */
1003
   complain_overflow_bitfield, /* complain_on_overflow */
1004
   bfd_elf_generic_reloc, /* special_function */
1005
   "R_M32R_GOTOFF", /* name */
1006
   false,     /* partial_inplace */
1007
   0xffffff,    /* src_mask */
1008
   0xffffff,    /* dst_mask */
1009
   false),    /* pcrel_offset */
1010
1011
  /* An PC Relative 24-bit relocation used when setting PIC offset
1012
     table register. */
1013
  HOWTO (R_M32R_GOTPC24,  /* type */
1014
   0,     /* rightshift */
1015
   4,     /* size */
1016
   24,      /* bitsize */
1017
   true,      /* pc_relative */
1018
   0,     /* bitpos */
1019
   complain_overflow_unsigned, /* complain_on_overflow */
1020
   bfd_elf_generic_reloc, /* special_function */
1021
   "R_M32R_GOTPC24",  /* name */
1022
   false,     /* partial_inplace */
1023
   0xffffff,    /* src_mask */
1024
   0xffffff,    /* dst_mask */
1025
   true),     /* pcrel_offset */
1026
1027
  /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028
     the symbol.  */
1029
  HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030
   16,      /* rightshift */
1031
   4,     /* size */
1032
   16,      /* bitsize */
1033
   false,     /* pc_relative */
1034
   0,     /* bitpos */
1035
   complain_overflow_dont, /* complain_on_overflow */
1036
   bfd_elf_generic_reloc, /* special_function */
1037
   "R_M32R_GOT16_HI_ULO", /* name */
1038
   false,     /* partial_inplace */
1039
   0x0000ffff,    /* src_mask */
1040
   0x0000ffff,    /* dst_mask */
1041
   false),    /* pcrel_offset */
1042
1043
  /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044
     the symbol.  */
1045
  HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046
   16,      /* rightshift */
1047
   4,     /* size */
1048
   16,      /* bitsize */
1049
   false,     /* pc_relative */
1050
   0,     /* bitpos */
1051
   complain_overflow_dont, /* complain_on_overflow */
1052
   bfd_elf_generic_reloc, /* special_function */
1053
   "R_M32R_GOT16_HI_SLO", /* name */
1054
   false,     /* partial_inplace */
1055
   0x0000ffff,    /* src_mask */
1056
   0x0000ffff,    /* dst_mask */
1057
   false),    /* pcrel_offset */
1058
1059
  /* Like R_M32R_LO16, but referring to the GOT table entry for
1060
     the symbol.  */
1061
  HOWTO (R_M32R_GOT16_LO, /* type */
1062
   0,     /* rightshift */
1063
   4,     /* size */
1064
   16,      /* bitsize */
1065
   false,     /* pc_relative */
1066
   0,     /* bitpos */
1067
   complain_overflow_dont, /* complain_on_overflow */
1068
   bfd_elf_generic_reloc, /* special_function */
1069
   "R_M32R_GOT16_LO", /* name */
1070
   false,     /* partial_inplace */
1071
   0x0000ffff,    /* src_mask */
1072
   0x0000ffff,    /* dst_mask */
1073
   false),    /* pcrel_offset */
1074
1075
  /* An PC Relative relocation used when setting PIC offset table register.
1076
     Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077
     the symbol.  */
1078
  HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079
   16,      /* rightshift */
1080
   4,     /* size */
1081
   16,      /* bitsize */
1082
   false,     /* pc_relative */
1083
   0,     /* bitpos */
1084
   complain_overflow_dont, /* complain_on_overflow */
1085
   bfd_elf_generic_reloc, /* special_function */
1086
   "R_M32R_GOTPC_HI_ULO", /* name */
1087
   false,     /* partial_inplace */
1088
   0x0000ffff,    /* src_mask */
1089
   0x0000ffff,    /* dst_mask */
1090
   true),     /* pcrel_offset */
1091
1092
  /* An PC Relative relocation used when setting PIC offset table register.
1093
     Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094
     the symbol.  */
1095
  HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096
   16,      /* rightshift */
1097
   4,     /* size */
1098
   16,      /* bitsize */
1099
   false,     /* pc_relative */
1100
   0,     /* bitpos */
1101
   complain_overflow_dont, /* complain_on_overflow */
1102
   bfd_elf_generic_reloc, /* special_function */
1103
   "R_M32R_GOTPC_HI_SLO", /* name */
1104
   false,     /* partial_inplace */
1105
   0x0000ffff,    /* src_mask */
1106
   0x0000ffff,    /* dst_mask */
1107
   true),     /* pcrel_offset */
1108
1109
  /* An PC Relative relocation used when setting PIC offset table register.
1110
     Like R_M32R_LO16, but referring to the GOT table entry for
1111
     the symbol.  */
1112
  HOWTO (R_M32R_GOTPC_LO, /* type */
1113
   0,     /* rightshift */
1114
   4,     /* size */
1115
   16,      /* bitsize */
1116
   false,     /* pc_relative */
1117
   0,     /* bitpos */
1118
   complain_overflow_dont, /* complain_on_overflow */
1119
   bfd_elf_generic_reloc, /* special_function */
1120
   "R_M32R_GOTPC_LO", /* name */
1121
   false,     /* partial_inplace */
1122
   0x0000ffff,    /* src_mask */
1123
   0x0000ffff,    /* dst_mask */
1124
   true),     /* pcrel_offset */
1125
1126
  HOWTO (R_M32R_GOTOFF_HI_ULO,  /* type */
1127
   16,      /* rightshift */
1128
   4,     /* size */
1129
   16,      /* bitsize */
1130
   false,     /* pc_relative */
1131
   0,     /* bitpos */
1132
   complain_overflow_dont, /* complain_on_overflow */
1133
   bfd_elf_generic_reloc, /* special_function */
1134
   "R_M32R_GOTOFF_HI_ULO",/* name */
1135
   false,     /* partial_inplace */
1136
   0x0000ffff,    /* src_mask */
1137
   0x0000ffff,    /* dst_mask */
1138
   false),    /* pcrel_offset */
1139
1140
  HOWTO (R_M32R_GOTOFF_HI_SLO,  /* type */
1141
   16,      /* rightshift */
1142
   4,     /* size */
1143
   16,      /* bitsize */
1144
   false,     /* pc_relative */
1145
   0,     /* bitpos */
1146
   complain_overflow_dont, /* complain_on_overflow */
1147
   bfd_elf_generic_reloc, /* special_function */
1148
   "R_M32R_GOTOFF_HI_SLO",/* name */
1149
   false,     /* partial_inplace */
1150
   0x0000ffff,    /* src_mask */
1151
   0x0000ffff,    /* dst_mask */
1152
   false),    /* pcrel_offset */
1153
1154
  HOWTO (R_M32R_GOTOFF_LO,  /* type */
1155
   0,     /* rightshift */
1156
   4,     /* size */
1157
   16,      /* bitsize */
1158
   false,     /* pc_relative */
1159
   0,     /* bitpos */
1160
   complain_overflow_dont, /* complain_on_overflow */
1161
   bfd_elf_generic_reloc, /* special_function */
1162
   "R_M32R_GOTOFF_LO",  /* name */
1163
   false,     /* partial_inplace */
1164
   0x0000ffff,    /* src_mask */
1165
   0x0000ffff,    /* dst_mask */
1166
   false),    /* pcrel_offset */
1167
};
1168
1169
/* Map BFD reloc types to M32R ELF reloc types.  */
1170
1171
struct m32r_reloc_map
1172
{
1173
  bfd_reloc_code_real_type bfd_reloc_val;
1174
  unsigned char elf_reloc_val;
1175
};
1176
1177
#ifdef USE_M32R_OLD_RELOC
1178
static const struct m32r_reloc_map m32r_reloc_map_old[] =
1179
{
1180
  { BFD_RELOC_NONE, R_M32R_NONE },
1181
  { BFD_RELOC_16, R_M32R_16 },
1182
  { BFD_RELOC_32, R_M32R_32 },
1183
  { BFD_RELOC_M32R_24, R_M32R_24 },
1184
  { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185
  { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186
  { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187
  { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188
  { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189
  { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190
  { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191
  { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192
  { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193
};
1194
#else
1195
static const struct m32r_reloc_map m32r_reloc_map[] =
1196
{
1197
  { BFD_RELOC_NONE, R_M32R_NONE },
1198
  { BFD_RELOC_16, R_M32R_16_RELA },
1199
  { BFD_RELOC_32, R_M32R_32_RELA },
1200
  { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201
  { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202
  { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203
  { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204
  { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205
  { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206
  { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207
  { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208
  { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209
  { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1210
  { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1211
1212
  { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213
  { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214
  { BFD_RELOC_COPY, R_M32R_COPY },
1215
  { BFD_RELOC_GLOB_DAT, R_M32R_GLOB_DAT },
1216
  { BFD_RELOC_JMP_SLOT, R_M32R_JMP_SLOT },
1217
  { BFD_RELOC_RELATIVE, R_M32R_RELATIVE },
1218
  { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219
  { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220
  { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221
  { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222
  { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223
  { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224
  { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225
  { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1226
  { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227
  { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228
  { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1229
};
1230
#endif
1231
1232
static reloc_howto_type *
1233
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234
         bfd_reloc_code_real_type code)
1235
0
{
1236
0
  unsigned int i;
1237
1238
#ifdef USE_M32R_OLD_RELOC
1239
  for (i = 0;
1240
       i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241
       i++)
1242
    if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243
      return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
1245
#else /* ! USE_M32R_OLD_RELOC */
1246
1247
0
  for (i = 0;
1248
0
       i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249
0
       i++)
1250
0
    if (m32r_reloc_map[i].bfd_reloc_val == code)
1251
0
      return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1252
0
#endif
1253
1254
0
  return NULL;
1255
0
}
1256
1257
static reloc_howto_type *
1258
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259
         const char *r_name)
1260
0
{
1261
0
  unsigned int i;
1262
1263
0
  for (i = 0;
1264
0
       i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265
0
       i++)
1266
0
    if (m32r_elf_howto_table[i].name != NULL
1267
0
  && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268
0
      return &m32r_elf_howto_table[i];
1269
1270
0
  return NULL;
1271
0
}
1272
1273
/* Set the howto pointer for an M32R ELF reloc.  */
1274
1275
static bool
1276
m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277
      arelent *cache_ptr,
1278
      Elf_Internal_Rela *dst)
1279
11
{
1280
11
  unsigned int r_type;
1281
1282
11
  r_type = ELF32_R_TYPE (dst->r_info);
1283
11
  if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284
3
    {
1285
      /* xgettext:c-format */
1286
3
      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1287
3
        abfd, r_type);
1288
3
      bfd_set_error (bfd_error_bad_value);
1289
3
      return false;
1290
3
    }
1291
8
  cache_ptr->howto = &m32r_elf_howto_table[r_type];
1292
8
  return true;
1293
11
}
1294
1295
static bool
1296
m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1297
        arelent *cache_ptr,
1298
        Elf_Internal_Rela *dst)
1299
0
{
1300
0
  unsigned int r_type = ELF32_R_TYPE (dst->r_info);
1301
1302
0
  if (r_type == (unsigned int) R_M32R_NONE
1303
0
      || ((r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1304
0
    && (r_type < (unsigned int) R_M32R_max)))
1305
0
    {
1306
0
      cache_ptr->howto = &m32r_elf_howto_table[r_type];
1307
0
      return true;
1308
0
    }
1309
1310
  /* xgettext:c-format */
1311
0
  _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type);
1312
0
  bfd_set_error (bfd_error_bad_value);
1313
0
  return false;
1314
0
}
1315
1316

1317
/* Given a BFD section, try to locate the corresponding ELF section
1318
   index.  */
1319
1320
static bool
1321
_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1322
          asection *sec,
1323
          int *retval)
1324
0
{
1325
0
  if (strcmp (bfd_section_name (sec), ".scommon") == 0)
1326
0
    {
1327
0
      *retval = SHN_M32R_SCOMMON;
1328
0
      return true;
1329
0
    }
1330
0
  return false;
1331
0
}
1332
1333
/* M32R ELF uses two common sections.  One is the usual one, and the other
1334
   is for small objects.  All the small objects are kept together, and then
1335
   referenced via one register, which yields faster assembler code.  It is
1336
   up to the compiler to emit an instruction to load the register with
1337
   _SDA_BASE.  This is what we use for the small common section.  This
1338
   approach is copied from elf32-mips.c.  */
1339
static asection m32r_elf_scom_section;
1340
static const asymbol m32r_elf_scom_symbol =
1341
  GLOBAL_SYM_INIT (".scommon", &m32r_elf_scom_section);
1342
static asection m32r_elf_scom_section =
1343
  BFD_FAKE_SECTION (m32r_elf_scom_section, &m32r_elf_scom_symbol,
1344
        ".scommon", 0, SEC_IS_COMMON | SEC_SMALL_DATA);
1345
1346
/* Handle the special M32R section numbers that a symbol may use.  */
1347
1348
static void
1349
_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1350
68
{
1351
68
  elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1352
1353
68
  switch (elfsym->internal_elf_sym.st_shndx)
1354
68
    {
1355
0
    case SHN_M32R_SCOMMON:
1356
0
      asym->section = &m32r_elf_scom_section;
1357
0
      asym->value = elfsym->internal_elf_sym.st_size;
1358
0
      break;
1359
68
    }
1360
68
}
1361
1362
/* Hook called by the linker routine which adds symbols from an object
1363
   file.  We must handle the special M32R section numbers here.
1364
   We also keep watching for whether we need to create the sdata special
1365
   linker sections.  */
1366
1367
static bool
1368
m32r_elf_add_symbol_hook (bfd *abfd,
1369
        struct bfd_link_info *info,
1370
        Elf_Internal_Sym *sym,
1371
        const char **namep,
1372
        flagword *flagsp ATTRIBUTE_UNUSED,
1373
        asection **secp,
1374
        bfd_vma *valp)
1375
0
{
1376
0
  if (! bfd_link_relocatable (info)
1377
0
      && (*namep)[0] == '_' && (*namep)[1] == 'S'
1378
0
      && strcmp (*namep, "_SDA_BASE_") == 0
1379
0
      && is_elf_hash_table (info->hash))
1380
0
    {
1381
      /* This is simpler than using _bfd_elf_create_linker_section
1382
   (our needs are simpler than ppc's needs).  Also
1383
   _bfd_elf_create_linker_section currently has a bug where if a .sdata
1384
   section already exists a new one is created that follows it which
1385
   screws of _SDA_BASE_ address calcs because output_offset != 0.  */
1386
0
      struct elf_link_hash_entry *h;
1387
0
      struct bfd_link_hash_entry *bh;
1388
0
      asection *s = bfd_get_section_by_name (abfd, ".sdata");
1389
1390
      /* The following code was cobbled from elf32-ppc.c and elflink.c.  */
1391
0
      if (s == NULL)
1392
0
  {
1393
0
    flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1394
0
          | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1395
1396
0
    s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1397
0
              flags);
1398
0
    if (s == NULL)
1399
0
      return false;
1400
0
    if (!bfd_set_section_alignment (s, 2))
1401
0
      return false;
1402
0
  }
1403
1404
0
      bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1405
0
         false, false, false);
1406
1407
0
      if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1408
0
    && !(_bfd_generic_link_add_one_symbol (info,
1409
0
             abfd,
1410
0
             "_SDA_BASE_",
1411
0
             BSF_GLOBAL,
1412
0
             s,
1413
0
             (bfd_vma) 32768,
1414
0
             NULL,
1415
0
             false,
1416
0
             get_elf_backend_data (abfd)->collect,
1417
0
             &bh)))
1418
0
  return false;
1419
0
      h = (struct elf_link_hash_entry *) bh;
1420
0
      h->type = STT_OBJECT;
1421
0
    }
1422
1423
0
  switch (sym->st_shndx)
1424
0
    {
1425
0
    case SHN_M32R_SCOMMON:
1426
0
      *secp = bfd_make_section_old_way (abfd, ".scommon");
1427
0
      (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
1428
0
      *valp = sym->st_size;
1429
0
      break;
1430
0
    }
1431
1432
0
  return true;
1433
0
}
1434
1435
/* We have to figure out the SDA_BASE value, so that we can adjust the
1436
   symbol value correctly.  We look up the symbol _SDA_BASE_ in the output
1437
   BFD.  If we can't find it, we're stuck.  We cache it in the ELF
1438
   target data.  We don't need to adjust the symbol value for an
1439
   external symbol if we are producing relocatable output.  */
1440
1441
static bfd_reloc_status_type
1442
m32r_elf_final_sda_base (bfd *output_bfd,
1443
       struct bfd_link_info *info,
1444
       const char **error_message,
1445
       bfd_vma *psb)
1446
0
{
1447
0
  if (elf_gp (output_bfd) == 0)
1448
0
    {
1449
0
      struct bfd_link_hash_entry *h;
1450
1451
0
      h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", false, false, true);
1452
0
      if (h != NULL && h->type == bfd_link_hash_defined)
1453
0
  elf_gp (output_bfd) = (h->u.def.value
1454
0
             + h->u.def.section->output_section->vma
1455
0
             + h->u.def.section->output_offset);
1456
0
      else
1457
0
  {
1458
    /* Only get the error once.  */
1459
0
    *psb = elf_gp (output_bfd) = 4;
1460
0
    *error_message =
1461
0
      (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1462
0
    return bfd_reloc_dangerous;
1463
0
  }
1464
0
    }
1465
0
  *psb = elf_gp (output_bfd);
1466
0
  return bfd_reloc_ok;
1467
0
}
1468

1469
/* Return size of a PLT entry.  */
1470
#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1471
1472
/* The m32r linker needs to keep track of the number of relocs that it
1473
   decides to copy in check_relocs for each symbol.  This is so that
1474
   it can discard PC relative relocs if it doesn't need them when
1475
   linking with -Bsymbolic.  We store the information in a field
1476
   extending the regular ELF linker hash table.  */
1477
1478
/* This structure keeps track of the number of PC relative relocs we
1479
   have copied for a given symbol.  */
1480
1481
struct elf_m32r_pcrel_relocs_copied
1482
{
1483
  /* Next section.  */
1484
  struct elf_m32r_pcrel_relocs_copied *next;
1485
  /* A section in dynobj.  */
1486
  asection *section;
1487
  /* Number of relocs copied in this section.  */
1488
  bfd_size_type count;
1489
};
1490
1491
/* Traverse an m32r ELF linker hash table.  */
1492
1493
#define m32r_elf_link_hash_traverse(table, func, info)      \
1494
  (elf_link_hash_traverse           \
1495
   (&(table)->root,             \
1496
    (bool (*) (struct elf_link_hash_entry *, void *)) (func),   \
1497
    (info)))
1498
1499
/* Get the m32r ELF linker hash table from a link_info structure.  */
1500
1501
#define m32r_elf_hash_table(p) \
1502
0
  ((is_elf_hash_table ((p)->hash)          \
1503
0
    && elf_hash_table_id (elf_hash_table (p)) == M32R_ELF_DATA)   \
1504
0
   ? (struct elf_link_hash_table *) (p)->hash : NULL)
1505
1506
/* Create an m32r ELF linker hash table.  */
1507
1508
static struct bfd_link_hash_table *
1509
m32r_elf_link_hash_table_create (bfd *abfd)
1510
0
{
1511
0
  struct elf_link_hash_table *ret;
1512
0
  size_t amt = sizeof (struct elf_link_hash_table);
1513
1514
0
  ret = bfd_zmalloc (amt);
1515
0
  if (ret == NULL)
1516
0
    return NULL;
1517
1518
0
  if (!_bfd_elf_link_hash_table_init (ret, abfd,
1519
0
              _bfd_elf_link_hash_newfunc,
1520
0
              sizeof (struct elf_link_hash_entry)))
1521
0
    {
1522
0
      free (ret);
1523
0
      return NULL;
1524
0
    }
1525
1526
0
  return &ret->root;
1527
0
}
1528
1529
/* Create dynamic sections when linking against a dynamic object.  */
1530
1531
static bool
1532
m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1533
0
{
1534
0
  struct elf_link_hash_table *htab;
1535
0
  flagword flags, pltflags;
1536
0
  asection *s;
1537
0
  elf_backend_data *bed = get_elf_backend_data (abfd);
1538
0
  int ptralign = 2; /* 32bit */
1539
1540
0
  htab = m32r_elf_hash_table (info);
1541
0
  if (htab == NULL)
1542
0
    return false;
1543
1544
  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1545
     .rel[a].bss sections.  */
1546
0
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1547
0
     | SEC_LINKER_CREATED);
1548
1549
0
  pltflags = flags;
1550
0
  pltflags |= SEC_CODE;
1551
0
  if (bed->plt_not_loaded)
1552
0
    pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1553
0
  if (bed->plt_readonly)
1554
0
    pltflags |= SEC_READONLY;
1555
1556
0
  s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1557
0
  htab->splt = s;
1558
0
  if (s == NULL
1559
0
      || !bfd_set_section_alignment (s, bed->plt_alignment))
1560
0
    return false;
1561
1562
0
  if (bed->want_plt_sym)
1563
0
    {
1564
      /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1565
   .plt section.  */
1566
0
      struct bfd_link_hash_entry *bh = NULL;
1567
0
      struct elf_link_hash_entry *h;
1568
1569
0
      if (! (_bfd_generic_link_add_one_symbol
1570
0
       (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1571
0
        (bfd_vma) 0, NULL, false,
1572
0
        get_elf_backend_data (abfd)->collect, &bh)))
1573
0
  return false;
1574
0
      h = (struct elf_link_hash_entry *) bh;
1575
0
      h->def_regular = 1;
1576
0
      h->type = STT_OBJECT;
1577
0
      htab->hplt = h;
1578
1579
0
      if (bfd_link_pic (info)
1580
0
    && ! bfd_elf_link_record_dynamic_symbol (info, h))
1581
0
  return false;
1582
0
    }
1583
1584
0
  s = bfd_make_section_anyway_with_flags (abfd,
1585
0
            bed->default_use_rela_p
1586
0
            ? ".rela.plt" : ".rel.plt",
1587
0
            flags | SEC_READONLY);
1588
0
  htab->srelplt = s;
1589
0
  if (s == NULL
1590
0
      || !bfd_set_section_alignment (s, ptralign))
1591
0
    return false;
1592
1593
0
  if (htab->sgot == NULL
1594
0
      && !_bfd_elf_create_got_section (abfd, info))
1595
0
    return false;
1596
1597
0
  if (bed->want_dynbss)
1598
0
    {
1599
      /* The .dynbss section is a place to put symbols which are defined
1600
   by dynamic objects, are referenced by regular objects, and are
1601
   not functions.  We must allocate space for them in the process
1602
   image and use a R_*_COPY reloc to tell the dynamic linker to
1603
   initialize them at run time.  The linker script puts the .dynbss
1604
   section into the .bss section of the final image.  */
1605
0
      s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1606
0
                SEC_ALLOC | SEC_LINKER_CREATED);
1607
0
      htab->sdynbss = s;
1608
0
      if (s == NULL)
1609
0
  return false;
1610
      /* The .rel[a].bss section holds copy relocs.  This section is not
1611
   normally needed.  We need to create it here, though, so that the
1612
   linker will map it to an output section.  We can't just create it
1613
   only if we need it, because we will not know whether we need it
1614
   until we have seen all the input files, and the first time the
1615
   main linker code calls BFD after examining all the input files
1616
   (size_dynamic_sections) the input sections have already been
1617
   mapped to the output sections.  If the section turns out not to
1618
   be needed, we can discard it later.  We will never need this
1619
   section when generating a shared object, since they do not use
1620
   copy relocs.  */
1621
0
      if (! bfd_link_pic (info))
1622
0
  {
1623
0
    s = bfd_make_section_anyway_with_flags (abfd,
1624
0
              (bed->default_use_rela_p
1625
0
               ? ".rela.bss" : ".rel.bss"),
1626
0
              flags | SEC_READONLY);
1627
0
    htab->srelbss = s;
1628
0
    if (s == NULL
1629
0
        || !bfd_set_section_alignment (s, ptralign))
1630
0
      return false;
1631
0
  }
1632
0
    }
1633
1634
0
  return true;
1635
0
}
1636
1637

1638
/* Adjust a symbol defined by a dynamic object and referenced by a
1639
   regular object.  The current definition is in some section of the
1640
   dynamic object, but we're not including those sections.  We have to
1641
   change the definition to something the rest of the link can
1642
   understand.  */
1643
1644
static bool
1645
m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1646
        struct elf_link_hash_entry *h)
1647
0
{
1648
0
  struct elf_link_hash_table *htab;
1649
0
  bfd *dynobj;
1650
0
  asection *s;
1651
1652
#ifdef DEBUG_PIC
1653
  printf ("m32r_elf_adjust_dynamic_symbol()\n");
1654
#endif
1655
1656
0
  dynobj = elf_hash_table (info)->dynobj;
1657
1658
  /* Make sure we know what is going on here.  */
1659
0
  BFD_ASSERT (dynobj != NULL
1660
0
        && (h->needs_plt
1661
0
      || h->is_weakalias
1662
0
      || (h->def_dynamic
1663
0
          && h->ref_regular
1664
0
          && !h->def_regular)));
1665
1666
  /* If this is a function, put it in the procedure linkage table.  We
1667
     will fill in the contents of the procedure linkage table later,
1668
     when we know the address of the .got section.  */
1669
0
  if (h->type == STT_FUNC
1670
0
      || h->needs_plt)
1671
0
    {
1672
0
      if (! bfd_link_pic (info)
1673
0
    && !h->def_dynamic
1674
0
    && !h->ref_dynamic
1675
0
    && h->root.type != bfd_link_hash_undefweak
1676
0
    && h->root.type != bfd_link_hash_undefined)
1677
0
  {
1678
    /* This case can occur if we saw a PLT reloc in an input
1679
       file, but the symbol was never referred to by a dynamic
1680
       object.  In such a case, we don't actually need to build
1681
       a procedure linkage table, and we can just do a PCREL
1682
       reloc instead.  */
1683
0
    h->plt.offset = (bfd_vma) -1;
1684
0
    h->needs_plt = 0;
1685
0
  }
1686
1687
0
      return true;
1688
0
    }
1689
0
  else
1690
0
    h->plt.offset = (bfd_vma) -1;
1691
1692
  /* If this is a weak symbol, and there is a real definition, the
1693
     processor independent code will have arranged for us to see the
1694
     real definition first, and we can just use the same value.  */
1695
0
  if (h->is_weakalias)
1696
0
    {
1697
0
      struct elf_link_hash_entry *def = weakdef (h);
1698
0
      BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1699
0
      h->root.u.def.section = def->root.u.def.section;
1700
0
      h->root.u.def.value = def->root.u.def.value;
1701
0
      return true;
1702
0
    }
1703
1704
  /* This is a reference to a symbol defined by a dynamic object which
1705
     is not a function.  */
1706
1707
  /* If we are creating a shared library, we must presume that the
1708
     only references to the symbol are via the global offset table.
1709
     For such cases we need not do anything here; the relocations will
1710
     be handled correctly by relocate_section.  */
1711
0
  if (bfd_link_pic (info))
1712
0
    return true;
1713
1714
  /* If there are no references to this symbol that do not use the
1715
     GOT, we don't need to generate a copy reloc.  */
1716
0
  if (!h->non_got_ref)
1717
0
    return true;
1718
1719
  /* If -z nocopyreloc was given, we won't generate them either.  */
1720
0
  if (0 && info->nocopyreloc)
1721
0
    {
1722
0
      h->non_got_ref = 0;
1723
0
      return true;
1724
0
    }
1725
1726
  /* If we don't find any dynamic relocs in read-only sections, then
1727
     we'll be keeping the dynamic relocs and avoiding the copy reloc.  */
1728
0
  if (0 && !_bfd_elf_readonly_dynrelocs (h))
1729
0
    {
1730
0
      h->non_got_ref = 0;
1731
0
      return true;
1732
0
    }
1733
1734
  /* We must allocate the symbol in our .dynbss section, which will
1735
     become part of the .bss section of the executable.  There will be
1736
     an entry for this symbol in the .dynsym section.  The dynamic
1737
     object will contain position independent code, so all references
1738
     from the dynamic object to this symbol will go through the global
1739
     offset table.  The dynamic linker will use the .dynsym entry to
1740
     determine the address it must put in the global offset table, so
1741
     both the dynamic object and the regular object will refer to the
1742
     same memory location for the variable.  */
1743
1744
0
  htab = m32r_elf_hash_table (info);
1745
0
  if (htab == NULL)
1746
0
    return false;
1747
1748
0
  s = htab->sdynbss;
1749
0
  BFD_ASSERT (s != NULL);
1750
1751
  /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1752
     to copy the initial value out of the dynamic object and into the
1753
     runtime process image.  We need to remember the offset into the
1754
     .rela.bss section we are going to use.  */
1755
0
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1756
0
    {
1757
0
      asection *srel;
1758
1759
0
      srel = htab->srelbss;
1760
0
      BFD_ASSERT (srel != NULL);
1761
0
      srel->size += sizeof (Elf32_External_Rela);
1762
0
      h->needs_copy = 1;
1763
0
    }
1764
1765
0
  return _bfd_elf_adjust_dynamic_copy (info, h, s);
1766
0
}
1767
1768
/* Allocate space in .plt, .got and associated reloc sections for
1769
   dynamic relocs.  */
1770
1771
static bool
1772
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1773
0
{
1774
0
  struct bfd_link_info *info;
1775
0
  struct elf_link_hash_table *htab;
1776
0
  struct elf_dyn_relocs *p;
1777
1778
0
  if (h->root.type == bfd_link_hash_indirect)
1779
0
    return true;
1780
1781
0
  info = (struct bfd_link_info *) inf;
1782
0
  htab = m32r_elf_hash_table (info);
1783
0
  if (htab == NULL)
1784
0
    return false;
1785
1786
0
  if (htab->dynamic_sections_created
1787
0
      && h->plt.refcount > 0)
1788
0
    {
1789
      /* Make sure this symbol is output as a dynamic symbol.
1790
   Undefined weak syms won't yet be marked as dynamic.  */
1791
0
      if (h->dynindx == -1
1792
0
    && !h->forced_local)
1793
0
  {
1794
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1795
0
      return false;
1796
0
  }
1797
1798
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1799
0
  {
1800
0
    asection *s = htab->splt;
1801
1802
    /* If this is the first .plt entry, make room for the special
1803
       first entry.  */
1804
0
    if (s->size == 0)
1805
0
      s->size += PLT_ENTRY_SIZE;
1806
1807
0
    h->plt.offset = s->size;
1808
1809
    /* If this symbol is not defined in a regular file, and we are
1810
       not generating a shared library, then set the symbol to this
1811
       location in the .plt.  This is required to make function
1812
       pointers compare as equal between the normal executable and
1813
       the shared library.  */
1814
0
    if (! bfd_link_pic (info)
1815
0
        && !h->def_regular)
1816
0
      {
1817
0
        h->root.u.def.section = s;
1818
0
        h->root.u.def.value = h->plt.offset;
1819
0
      }
1820
1821
    /* Make room for this entry.  */
1822
0
    s->size += PLT_ENTRY_SIZE;
1823
1824
    /* We also need to make an entry in the .got.plt section, which
1825
       will be placed in the .got section by the linker script.  */
1826
0
    htab->sgotplt->size += 4;
1827
1828
    /* We also need to make an entry in the .rel.plt section.  */
1829
0
    htab->srelplt->size += sizeof (Elf32_External_Rela);
1830
0
  }
1831
0
      else
1832
0
  {
1833
0
    h->plt.offset = (bfd_vma) -1;
1834
0
    h->needs_plt = 0;
1835
0
  }
1836
0
    }
1837
0
  else
1838
0
    {
1839
0
      h->plt.offset = (bfd_vma) -1;
1840
0
      h->needs_plt = 0;
1841
0
    }
1842
1843
0
  if (h->got.refcount > 0)
1844
0
    {
1845
0
      asection *s;
1846
0
      bool dyn;
1847
1848
      /* Make sure this symbol is output as a dynamic symbol.
1849
   Undefined weak syms won't yet be marked as dynamic.  */
1850
0
      if (h->dynindx == -1
1851
0
    && !h->forced_local)
1852
0
  {
1853
0
    if (! bfd_elf_link_record_dynamic_symbol (info, h))
1854
0
      return false;
1855
0
  }
1856
1857
0
      s = htab->sgot;
1858
1859
0
      h->got.offset = s->size;
1860
0
      s->size += 4;
1861
0
      dyn = htab->dynamic_sections_created;
1862
0
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1863
0
  htab->srelgot->size += sizeof (Elf32_External_Rela);
1864
0
    }
1865
0
  else
1866
0
    h->got.offset = (bfd_vma) -1;
1867
1868
0
  if (h->dyn_relocs == NULL)
1869
0
    return true;
1870
1871
  /* In the shared -Bsymbolic case, discard space allocated for
1872
     dynamic pc-relative relocs against symbols which turn out to be
1873
     defined in regular objects.  For the normal shared case, discard
1874
     space for pc-relative relocs that have become local due to symbol
1875
     visibility changes.  */
1876
1877
0
  if (bfd_link_pic (info))
1878
0
    {
1879
0
      if (h->def_regular
1880
0
    && (h->forced_local
1881
0
        || info->symbolic))
1882
0
  {
1883
0
    struct elf_dyn_relocs **pp;
1884
1885
0
    for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
1886
0
      {
1887
0
        p->count -= p->pc_count;
1888
0
        p->pc_count = 0;
1889
0
        if (p->count == 0)
1890
0
    *pp = p->next;
1891
0
        else
1892
0
    pp = &p->next;
1893
0
      }
1894
0
  }
1895
1896
      /* Also discard relocs on undefined weak syms with non-default
1897
   visibility.  */
1898
0
      if (h->dyn_relocs != NULL
1899
0
    && h->root.type == bfd_link_hash_undefweak)
1900
0
  {
1901
0
    if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1902
0
      h->dyn_relocs = NULL;
1903
1904
    /* Make sure undefined weak symbols are output as a dynamic
1905
       symbol in PIEs.  */
1906
0
    else if (h->dynindx == -1
1907
0
       && !h->forced_local)
1908
0
      {
1909
0
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
1910
0
    return false;
1911
0
      }
1912
0
  }
1913
0
    }
1914
0
  else
1915
0
    {
1916
      /* For the non-shared case, discard space for relocs against
1917
   symbols which turn out to need copy relocs or are not
1918
   dynamic.  */
1919
1920
0
      if (!h->non_got_ref
1921
0
    && ((h->def_dynamic
1922
0
         && !h->def_regular)
1923
0
        || (htab->dynamic_sections_created
1924
0
      && (h->root.type == bfd_link_hash_undefweak
1925
0
          || h->root.type == bfd_link_hash_undefined))))
1926
0
  {
1927
    /* Make sure this symbol is output as a dynamic symbol.
1928
       Undefined weak syms won't yet be marked as dynamic.  */
1929
0
    if (h->dynindx == -1
1930
0
        && !h->forced_local)
1931
0
      {
1932
0
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
1933
0
    return false;
1934
0
      }
1935
1936
    /* If that succeeded, we know we'll be keeping all the
1937
       relocs.  */
1938
0
    if (h->dynindx != -1)
1939
0
      goto keep;
1940
0
  }
1941
1942
0
      h->dyn_relocs = NULL;
1943
1944
0
    keep: ;
1945
0
    }
1946
1947
  /* Finally, allocate space.  */
1948
0
  for (p = h->dyn_relocs; p != NULL; p = p->next)
1949
0
    {
1950
0
      asection *sreloc = elf_section_data (p->sec)->sreloc;
1951
0
      sreloc->size += p->count * sizeof (Elf32_External_Rela);
1952
0
    }
1953
1954
0
  return true;
1955
0
}
1956
1957
/* Set the sizes of the dynamic sections.  */
1958
1959
static bool
1960
m32r_elf_late_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1961
           struct bfd_link_info *info)
1962
0
{
1963
0
  struct elf_link_hash_table *htab;
1964
0
  bfd *dynobj;
1965
0
  asection *s;
1966
0
  bool relocs;
1967
0
  bfd *ibfd;
1968
1969
#ifdef DEBUG_PIC
1970
  printf ("m32r_elf_late_size_sections()\n");
1971
#endif
1972
1973
0
  htab = m32r_elf_hash_table (info);
1974
0
  if (htab == NULL)
1975
0
    return false;
1976
1977
0
  dynobj = htab->dynobj;
1978
0
  if (dynobj == NULL)
1979
0
    return true;
1980
1981
0
  if (htab->dynamic_sections_created)
1982
0
    {
1983
      /* Set the contents of the .interp section to the interpreter.  */
1984
0
      if (bfd_link_executable (info) && !info->nointerp)
1985
0
  {
1986
0
    s = htab->interp;
1987
0
    BFD_ASSERT (s != NULL);
1988
0
    s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1989
0
    s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1990
0
    s->alloced = 1;
1991
0
  }
1992
0
    }
1993
1994
  /* Set up .got offsets for local syms, and space for local dynamic
1995
     relocs.  */
1996
0
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1997
0
    {
1998
0
      bfd_signed_vma *local_got;
1999
0
      bfd_signed_vma *end_local_got;
2000
0
      bfd_size_type locsymcount;
2001
0
      Elf_Internal_Shdr *symtab_hdr;
2002
0
      asection *srel;
2003
2004
0
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2005
0
  continue;
2006
2007
0
      for (s = ibfd->sections; s != NULL; s = s->next)
2008
0
  {
2009
0
    struct elf_dyn_relocs *p;
2010
2011
0
    for (p = ((struct elf_dyn_relocs *)
2012
0
        elf_section_data (s)->local_dynrel);
2013
0
         p != NULL;
2014
0
         p = p->next)
2015
0
      {
2016
0
        if (! bfd_is_abs_section (p->sec)
2017
0
      && bfd_is_abs_section (p->sec->output_section))
2018
0
    {
2019
      /* Input section has been discarded, either because
2020
         it is a copy of a linkonce section or due to
2021
         linker script /DISCARD/, so we'll be discarding
2022
         the relocs too.  */
2023
0
    }
2024
0
        else if (p->count != 0)
2025
0
    {
2026
0
      srel = elf_section_data (p->sec)->sreloc;
2027
0
      srel->size += p->count * sizeof (Elf32_External_Rela);
2028
0
      if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2029
0
        info->flags |= DF_TEXTREL;
2030
0
    }
2031
0
      }
2032
0
  }
2033
2034
0
      local_got = elf_local_got_refcounts (ibfd);
2035
0
      if (!local_got)
2036
0
  continue;
2037
2038
0
      symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2039
0
      locsymcount = symtab_hdr->sh_info;
2040
0
      end_local_got = local_got + locsymcount;
2041
0
      s = htab->sgot;
2042
0
      srel = htab->srelgot;
2043
0
      for (; local_got < end_local_got; ++local_got)
2044
0
  {
2045
0
    if (*local_got > 0)
2046
0
      {
2047
0
        *local_got = s->size;
2048
0
        s->size += 4;
2049
0
        if (bfd_link_pic (info))
2050
0
    srel->size += sizeof (Elf32_External_Rela);
2051
0
      }
2052
0
    else
2053
0
      *local_got = (bfd_vma) -1;
2054
0
  }
2055
0
    }
2056
2057
  /* Allocate global sym .plt and .got entries, and space for global
2058
     sym dynamic relocs.  */
2059
0
  elf_link_hash_traverse (htab, allocate_dynrelocs, info);
2060
2061
  /* We now have determined the sizes of the various dynamic sections.
2062
     Allocate memory for them.  */
2063
0
  relocs = false;
2064
0
  for (s = dynobj->sections; s != NULL; s = s->next)
2065
0
    {
2066
0
      if ((s->flags & SEC_LINKER_CREATED) == 0)
2067
0
  continue;
2068
2069
0
      if (s == htab->splt
2070
0
    || s == htab->sgot
2071
0
    || s == htab->sgotplt
2072
0
    || s == htab->sdynbss)
2073
0
  {
2074
    /* Strip this section if we don't need it; see the
2075
       comment below.  */
2076
0
  }
2077
0
      else if (startswith (bfd_section_name (s), ".rela"))
2078
0
  {
2079
0
    if (s->size != 0 && s != htab->srelplt)
2080
0
      relocs = true;
2081
2082
    /* We use the reloc_count field as a counter if we need
2083
       to copy relocs into the output file.  */
2084
0
    s->reloc_count = 0;
2085
0
  }
2086
0
      else
2087
  /* It's not one of our sections, so don't allocate space.  */
2088
0
  continue;
2089
2090
0
      if (s->size == 0)
2091
0
  {
2092
    /* If we don't need this section, strip it from the
2093
       output file.  This is mostly to handle .rela.bss and
2094
       .rela.plt.  We must create both sections in
2095
       create_dynamic_sections, because they must be created
2096
       before the linker maps input sections to output
2097
       sections.  The linker does that before
2098
       adjust_dynamic_symbol is called, and it is that
2099
       function which decides whether anything needs to go
2100
       into these sections.  */
2101
0
    s->flags |= SEC_EXCLUDE;
2102
0
    continue;
2103
0
  }
2104
2105
0
      if ((s->flags & SEC_HAS_CONTENTS) == 0)
2106
0
  continue;
2107
2108
      /* Allocate memory for the section contents.  We use bfd_zalloc
2109
   here in case unused entries are not reclaimed before the
2110
   section's contents are written out.  This should not happen,
2111
   but this way if it does, we get a R_M32R_NONE reloc instead
2112
   of garbage.  */
2113
0
      s->contents = bfd_zalloc (dynobj, s->size);
2114
0
      if (s->contents == NULL)
2115
0
  return false;
2116
0
      s->alloced = 1;
2117
0
    }
2118
2119
0
  return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
2120
0
}
2121
2122
/* Relocate an M32R/D ELF section.
2123
   There is some attempt to make this function usable for many architectures,
2124
   both for RELA and REL type relocs, if only to serve as a learning tool.
2125
2126
   The RELOCATE_SECTION function is called by the new ELF backend linker
2127
   to handle the relocations for a section.
2128
2129
   The relocs are always passed as Rela structures; if the section
2130
   actually uses Rel structures, the r_addend field will always be
2131
   zero.
2132
2133
   This function is responsible for adjust the section contents as
2134
   necessary, and (if using Rela relocs and generating a
2135
   relocatable output file) adjusting the reloc addend as
2136
   necessary.
2137
2138
   This function does not have to worry about setting the reloc
2139
   address or the reloc symbol index.
2140
2141
   LOCAL_SYMS is a pointer to the swapped in local symbols.
2142
2143
   LOCAL_SECTIONS is an array giving the section in the input file
2144
   corresponding to the st_shndx field of each local symbol.
2145
2146
   The global hash table entry for the global symbols can be found
2147
   via elf_sym_hashes (input_bfd).
2148
2149
   When generating relocatable output, this function must handle
2150
   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2151
   going to be the section symbol corresponding to the output
2152
   section, which means that the addend must be adjusted
2153
   accordingly.  */
2154
2155
static int
2156
m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2157
         struct bfd_link_info *info,
2158
         bfd *input_bfd,
2159
         asection *input_section,
2160
         bfd_byte *contents,
2161
         Elf_Internal_Rela *relocs,
2162
         Elf_Internal_Sym *local_syms,
2163
         asection **local_sections)
2164
0
{
2165
0
  Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2166
0
  struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2167
0
  Elf_Internal_Rela *rel, *relend;
2168
  /* Assume success.  */
2169
0
  bool ret = true;
2170
0
  struct elf_link_hash_table *htab = m32r_elf_hash_table (info);
2171
0
  bfd_vma *local_got_offsets;
2172
0
  asection *sgot, *splt, *sreloc;
2173
0
  bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2174
2175
0
  if (htab == NULL)
2176
0
    return false;
2177
2178
0
  local_got_offsets = elf_local_got_offsets (input_bfd);
2179
2180
0
  sgot = htab->sgot;
2181
0
  splt = htab->splt;
2182
0
  sreloc = NULL;
2183
2184
0
  rel = relocs;
2185
0
  relend = relocs + input_section->reloc_count;
2186
0
  for (; rel < relend; rel++)
2187
0
    {
2188
0
      int r_type;
2189
0
      reloc_howto_type *howto;
2190
0
      unsigned long r_symndx;
2191
0
      struct elf_link_hash_entry *h;
2192
      /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2193
   ensure it's zero (we use REL relocs, not RELA).  Therefore this
2194
   should be assigning zero to `addend', but for clarity we use
2195
   `r_addend'.  */
2196
0
      bfd_vma addend = rel->r_addend;
2197
0
      bfd_vma offset = rel->r_offset;
2198
0
      bfd_vma relocation;
2199
0
      Elf_Internal_Sym *sym;
2200
0
      asection *sec;
2201
0
      const char *sym_name;
2202
0
      bfd_reloc_status_type r;
2203
0
      const char *errmsg = NULL;
2204
0
      bool use_rel = false;
2205
2206
0
      h = NULL;
2207
0
      r_type = ELF32_R_TYPE (rel->r_info);
2208
0
      if (r_type < 0 || r_type >= (int) R_M32R_max)
2209
0
  {
2210
    /* xgettext:c-format */
2211
0
    _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2212
0
            input_bfd, (int) r_type);
2213
0
    bfd_set_error (bfd_error_bad_value);
2214
0
    ret = false;
2215
0
    continue;
2216
0
  }
2217
2218
0
      if (   r_type == R_M32R_GNU_VTENTRY
2219
0
    || r_type == R_M32R_GNU_VTINHERIT
2220
0
    || r_type == R_M32R_NONE
2221
0
    || r_type == R_M32R_RELA_GNU_VTENTRY
2222
0
    || r_type == R_M32R_RELA_GNU_VTINHERIT)
2223
0
  continue;
2224
2225
0
      if (r_type <= R_M32R_GNU_VTENTRY)
2226
0
  use_rel = true;
2227
2228
0
      howto = m32r_elf_howto_table + r_type;
2229
0
      r_symndx = ELF32_R_SYM (rel->r_info);
2230
2231
0
      sym = NULL;
2232
0
      sec = NULL;
2233
0
      h = NULL;
2234
2235
0
      if (r_symndx < symtab_hdr->sh_info)
2236
0
  {
2237
    /* Local symbol.  */
2238
0
    sym = local_syms + r_symndx;
2239
0
    sec = local_sections[r_symndx];
2240
0
    sym_name = "<local symbol>";
2241
2242
0
    if (!use_rel)
2243
0
      {
2244
0
        relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2245
0
        addend = rel->r_addend;
2246
0
      }
2247
0
    else
2248
0
      {
2249
0
        relocation = (sec->output_section->vma
2250
0
          + sec->output_offset
2251
0
          + sym->st_value);
2252
0
      }
2253
0
  }
2254
0
      else
2255
0
  {
2256
    /* External symbol.  */
2257
0
    relocation = 0;
2258
2259
0
    h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2260
2261
0
    if (info->wrap_hash != NULL
2262
0
        && (input_section->flags & SEC_DEBUGGING) != 0)
2263
0
      h = ((struct elf_link_hash_entry *)
2264
0
     unwrap_hash_lookup (info, input_bfd, &h->root));
2265
2266
0
    while (h->root.type == bfd_link_hash_indirect
2267
0
     || h->root.type == bfd_link_hash_warning)
2268
0
      h = (struct elf_link_hash_entry *) h->root.u.i.link;
2269
0
    sym_name = h->root.root.string;
2270
2271
0
    if (h->root.type == bfd_link_hash_defined
2272
0
        || h->root.type == bfd_link_hash_defweak)
2273
0
      {
2274
0
        bool dyn;
2275
0
        sec = h->root.u.def.section;
2276
2277
0
        dyn = htab->dynamic_sections_created;
2278
0
        sec = h->root.u.def.section;
2279
0
        if (r_type == R_M32R_GOTPC24
2280
0
      || (r_type == R_M32R_GOTPC_HI_ULO
2281
0
          || r_type == R_M32R_GOTPC_HI_SLO
2282
0
          || r_type == R_M32R_GOTPC_LO)
2283
0
      || (r_type == R_M32R_26_PLTREL
2284
0
          && h->plt.offset != (bfd_vma) -1)
2285
0
      || ((r_type == R_M32R_GOT24
2286
0
           || r_type == R_M32R_GOT16_HI_ULO
2287
0
           || r_type == R_M32R_GOT16_HI_SLO
2288
0
           || r_type == R_M32R_GOT16_LO)
2289
0
          && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2290
0
                bfd_link_pic (info),
2291
0
                h)
2292
0
          && (! bfd_link_pic (info)
2293
0
        || (! info->symbolic && h->dynindx != -1)
2294
0
        || !h->def_regular))
2295
0
      || (bfd_link_pic (info)
2296
0
          && ((! info->symbolic && h->dynindx != -1)
2297
0
        || !h->def_regular)
2298
0
          && (((r_type == R_M32R_16_RELA
2299
0
          || r_type == R_M32R_32_RELA
2300
0
          || r_type == R_M32R_24_RELA
2301
0
          || r_type == R_M32R_HI16_ULO_RELA
2302
0
          || r_type == R_M32R_HI16_SLO_RELA
2303
0
          || r_type == R_M32R_LO16_RELA)
2304
0
         && !h->forced_local)
2305
0
        || r_type == R_M32R_REL32
2306
0
        || r_type == R_M32R_10_PCREL_RELA
2307
0
        || r_type == R_M32R_18_PCREL_RELA
2308
0
        || r_type == R_M32R_26_PCREL_RELA)
2309
0
          && ((input_section->flags & SEC_ALLOC) != 0
2310
        /* DWARF will emit R_M32R_16(24,32) relocations
2311
           in its sections against symbols defined
2312
           externally in shared libraries.  We can't do
2313
           anything with them here.  */
2314
0
        || ((input_section->flags & SEC_DEBUGGING) != 0
2315
0
            && h->def_dynamic))))
2316
0
    {
2317
      /* In these cases, we don't need the relocation
2318
         value.  We check specially because in some
2319
         obscure cases sec->output_section will be NULL.  */
2320
0
    }
2321
0
        else if (sec->output_section != NULL)
2322
0
    relocation = (h->root.u.def.value
2323
0
            + sec->output_section->vma
2324
0
            + sec->output_offset);
2325
0
        else if (!bfd_link_relocatable (info)
2326
0
           && (_bfd_elf_section_offset (output_bfd, info,
2327
0
                input_section,
2328
0
                rel->r_offset)
2329
0
         != (bfd_vma) -1))
2330
0
    {
2331
0
      _bfd_error_handler
2332
        /* xgettext:c-format */
2333
0
        (_("%pB(%pA+%#" PRIx64 "): unresolvable %s relocation "
2334
0
           "against symbol `%s'"),
2335
0
         input_bfd,
2336
0
         input_section,
2337
0
         (uint64_t) rel->r_offset,
2338
0
         howto->name,
2339
0
         h->root.root.string);
2340
0
    }
2341
0
      }
2342
0
    else if (h->root.type == bfd_link_hash_undefweak)
2343
0
      ;
2344
0
    else if (info->unresolved_syms_in_objects == RM_IGNORE
2345
0
       && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2346
0
      ;
2347
0
    else if (!bfd_link_relocatable (info))
2348
0
            info->callbacks->undefined_symbol
2349
0
        (info, h->root.root.string, input_bfd, input_section, offset,
2350
0
         (info->unresolved_syms_in_objects == RM_DIAGNOSE
2351
0
    && !info->warn_unresolved_syms)
2352
0
         || ELF_ST_VISIBILITY (h->other));
2353
0
        }
2354
2355
0
      if (sec != NULL && discarded_section (sec))
2356
0
  RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2357
0
           rel, 1, relend, R_M32R_NONE,
2358
0
           howto, 0, contents);
2359
2360
0
      if (bfd_link_relocatable (info) && !use_rel)
2361
0
  {
2362
    /* This is a relocatable link.  We don't have to change
2363
       anything, unless the reloc is against a section symbol,
2364
       in which case we have to adjust according to where the
2365
       section symbol winds up in the output section.  */
2366
0
    if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2367
0
      rel->r_addend += sec->output_offset;
2368
0
    continue;
2369
0
  }
2370
2371
0
      if (bfd_link_relocatable (info) && use_rel)
2372
0
  {
2373
    /* This is a relocatable link.  We don't have to change
2374
       anything, unless the reloc is against a section symbol,
2375
       in which case we have to adjust according to where the
2376
       section symbol winds up in the output section.  */
2377
0
    if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2378
0
      continue;
2379
2380
0
    addend += sec->output_offset;
2381
2382
    /* If partial_inplace, we need to store any additional addend
2383
       back in the section.  */
2384
0
    if (! howto->partial_inplace)
2385
0
      continue;
2386
    /* ??? Here is a nice place to call a special_function
2387
       like handler.  */
2388
0
    if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2389
0
      r = _bfd_relocate_contents (howto, input_bfd,
2390
0
          addend, contents + offset);
2391
0
    else
2392
0
      {
2393
0
        Elf_Internal_Rela *lorel;
2394
2395
        /* We allow an arbitrary number of HI16 relocs before the
2396
     LO16 reloc.  This permits gcc to emit the HI and LO relocs
2397
     itself.  */
2398
0
        for (lorel = rel + 1;
2399
0
       (lorel < relend
2400
0
        && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2401
0
      || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2402
0
       lorel++)
2403
0
    continue;
2404
0
        if (lorel < relend
2405
0
      && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2406
0
    {
2407
0
      m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2408
0
            contents, addend);
2409
0
      r = bfd_reloc_ok;
2410
0
    }
2411
0
        else
2412
0
    r = _bfd_relocate_contents (howto, input_bfd,
2413
0
              addend, contents + offset);
2414
0
      }
2415
0
  }
2416
0
      else
2417
0
  {
2418
    /* Sanity check the address.  */
2419
0
    if (offset > high_address)
2420
0
      {
2421
0
        r = bfd_reloc_outofrange;
2422
0
        goto check_reloc;
2423
0
      }
2424
2425
0
    switch ((int) r_type)
2426
0
      {
2427
0
      case R_M32R_GOTOFF:
2428
        /* Relocation is relative to the start of the global offset
2429
     table (for ld24 rx, #uimm24). eg access at label+addend
2430
2431
     ld24 rx. #label@GOTOFF + addend
2432
     sub  rx, r12.  */
2433
2434
0
        BFD_ASSERT (sgot != NULL);
2435
2436
0
        relocation = -(relocation - sgot->output_section->vma);
2437
0
        rel->r_addend = -rel->r_addend;
2438
0
        break;
2439
2440
0
      case R_M32R_GOTOFF_HI_ULO:
2441
0
      case R_M32R_GOTOFF_HI_SLO:
2442
0
      case R_M32R_GOTOFF_LO:
2443
0
        BFD_ASSERT (sgot != NULL);
2444
2445
0
        relocation -= sgot->output_section->vma;
2446
2447
0
        if ((r_type == R_M32R_GOTOFF_HI_SLO)
2448
0
      && ((relocation + rel->r_addend) & 0x8000))
2449
0
    rel->r_addend += 0x10000;
2450
0
        break;
2451
2452
0
      case R_M32R_GOTPC24:
2453
        /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2454
     ld24 rx,#_GLOBAL_OFFSET_TABLE_
2455
         */
2456
0
       relocation = sgot->output_section->vma;
2457
0
       break;
2458
2459
0
      case R_M32R_GOTPC_HI_ULO:
2460
0
      case R_M32R_GOTPC_HI_SLO:
2461
0
      case R_M32R_GOTPC_LO:
2462
0
        {
2463
    /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2464
       bl .+4
2465
       seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2466
       or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2467
       or
2468
       bl .+4
2469
       seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2470
       add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2471
     */
2472
0
    relocation = sgot->output_section->vma;
2473
0
    relocation -= (input_section->output_section->vma
2474
0
             + input_section->output_offset
2475
0
             + rel->r_offset);
2476
0
    if ((r_type == R_M32R_GOTPC_HI_SLO)
2477
0
         && ((relocation + rel->r_addend) & 0x8000))
2478
0
      rel->r_addend += 0x10000;
2479
2480
0
    break;
2481
0
        }
2482
0
      case R_M32R_GOT16_HI_ULO:
2483
0
      case R_M32R_GOT16_HI_SLO:
2484
0
      case R_M32R_GOT16_LO:
2485
        /* Fall through.  */
2486
0
      case R_M32R_GOT24:
2487
        /* Relocation is to the entry for this symbol in the global
2488
     offset table.  */
2489
0
        BFD_ASSERT (sgot != NULL);
2490
2491
0
        if (h != NULL)
2492
0
    {
2493
0
      bool dyn;
2494
0
      bfd_vma off;
2495
2496
0
      off = h->got.offset;
2497
0
      BFD_ASSERT (off != (bfd_vma) -1);
2498
2499
0
      dyn = htab->dynamic_sections_created;
2500
0
      if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2501
0
               bfd_link_pic (info),
2502
0
               h)
2503
0
          || (bfd_link_pic (info)
2504
0
        && (info->symbolic
2505
0
            || h->dynindx == -1
2506
0
            || h->forced_local)
2507
0
        && h->def_regular))
2508
0
        {
2509
          /* This is actually a static link, or it is a
2510
       -Bsymbolic link and the symbol is defined
2511
       locally, or the symbol was forced to be local
2512
       because of a version file.  We must initialize
2513
       this entry in the global offset table.  Since the
2514
       offset must always be a multiple of 4, we use the
2515
       least significant bit to record whether we have
2516
       initialized it already.
2517
2518
       When doing a dynamic link, we create a .rela.got
2519
       relocation entry to initialize the value.  This
2520
       is done in the finish_dynamic_symbol routine.  */
2521
0
          if ((off & 1) != 0)
2522
0
      off &= ~1;
2523
0
          else
2524
0
      {
2525
0
        bfd_put_32 (output_bfd, relocation,
2526
0
              sgot->contents + off);
2527
0
        h->got.offset |= 1;
2528
0
      }
2529
0
        }
2530
2531
0
      relocation = sgot->output_offset + off;
2532
0
    }
2533
0
        else
2534
0
    {
2535
0
      bfd_vma off;
2536
0
      bfd_byte *loc;
2537
2538
0
      BFD_ASSERT (local_got_offsets != NULL
2539
0
            && local_got_offsets[r_symndx] != (bfd_vma) -1);
2540
2541
0
      off = local_got_offsets[r_symndx];
2542
2543
      /* The offset must always be a multiple of 4.  We use
2544
         the least significant bit to record whether we have
2545
         already processed this entry.  */
2546
0
      if ((off & 1) != 0)
2547
0
        off &= ~1;
2548
0
      else
2549
0
        {
2550
0
          bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2551
2552
0
          if (bfd_link_pic (info))
2553
0
      {
2554
0
        asection *srelgot;
2555
0
        Elf_Internal_Rela outrel;
2556
2557
        /* We need to generate a R_M32R_RELATIVE reloc
2558
           for the dynamic linker.  */
2559
0
        srelgot = htab->srelgot;
2560
0
        BFD_ASSERT (srelgot != NULL);
2561
2562
0
        outrel.r_offset = (sgot->output_section->vma
2563
0
               + sgot->output_offset
2564
0
               + off);
2565
0
        outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2566
0
        outrel.r_addend = relocation;
2567
0
        loc = srelgot->contents;
2568
0
        loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2569
0
        bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2570
0
        ++srelgot->reloc_count;
2571
0
      }
2572
2573
0
          local_got_offsets[r_symndx] |= 1;
2574
0
        }
2575
2576
0
      relocation = sgot->output_offset + off;
2577
0
    }
2578
0
        if ((r_type == R_M32R_GOT16_HI_SLO)
2579
0
      && ((relocation + rel->r_addend) & 0x8000))
2580
0
    rel->r_addend += 0x10000;
2581
2582
0
        break;
2583
2584
0
      case R_M32R_26_PLTREL:
2585
        /* Relocation is to the entry for this symbol in the
2586
     procedure linkage table.  */
2587
2588
        /* The native assembler will generate a 26_PLTREL reloc
2589
     for a local symbol if you assemble a call from one
2590
     section to another when using -K pic. */
2591
0
        if (h == NULL)
2592
0
    break;
2593
2594
0
        if (h->forced_local)
2595
0
    break;
2596
2597
0
        if (h->plt.offset == (bfd_vma) -1)
2598
    /* We didn't make a PLT entry for this symbol.  This
2599
       happens when statically linking PIC code, or when
2600
       using -Bsymbolic.  */
2601
0
    break;
2602
2603
0
        relocation = (splt->output_section->vma
2604
0
          + splt->output_offset
2605
0
          + h->plt.offset);
2606
0
        break;
2607
2608
0
      case R_M32R_HI16_SLO_RELA:
2609
0
        if ((relocation + rel->r_addend) & 0x8000)
2610
0
    rel->r_addend += 0x10000;
2611
        /* Fall through.  */
2612
2613
0
      case R_M32R_16_RELA:
2614
0
      case R_M32R_24_RELA:
2615
0
      case R_M32R_32_RELA:
2616
0
      case R_M32R_REL32:
2617
0
      case R_M32R_10_PCREL_RELA:
2618
0
      case R_M32R_18_PCREL_RELA:
2619
0
      case R_M32R_26_PCREL_RELA:
2620
0
      case R_M32R_HI16_ULO_RELA:
2621
0
      case R_M32R_LO16_RELA:
2622
0
        if (bfd_link_pic (info)
2623
0
      && r_symndx != STN_UNDEF
2624
0
      && (input_section->flags & SEC_ALLOC) != 0
2625
0
      && ((   r_type != R_M32R_10_PCREL_RELA
2626
0
           && r_type != R_M32R_18_PCREL_RELA
2627
0
           && r_type != R_M32R_26_PCREL_RELA
2628
0
           && r_type != R_M32R_REL32)
2629
0
          || (h != NULL
2630
0
        && h->dynindx != -1
2631
0
        && (! info->symbolic
2632
0
            || !h->def_regular))))
2633
0
    {
2634
0
      Elf_Internal_Rela outrel;
2635
0
      bool skip, relocate;
2636
0
      bfd_byte *loc;
2637
2638
      /* When generating a shared object, these relocations
2639
         are copied into the output file to be resolved at run
2640
         time.  */
2641
0
      if (sreloc == NULL)
2642
0
        {
2643
0
          sreloc = _bfd_elf_get_dynamic_reloc_section
2644
0
      (input_bfd, input_section, /*rela?*/ true);
2645
0
          if (sreloc == NULL)
2646
0
      return false;
2647
0
        }
2648
2649
0
      skip = false;
2650
0
      relocate = false;
2651
2652
0
      outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2653
0
                   info,
2654
0
                   input_section,
2655
0
                   rel->r_offset);
2656
0
      if (outrel.r_offset == (bfd_vma) -1)
2657
0
        skip = true;
2658
0
      else if (outrel.r_offset == (bfd_vma) -2)
2659
0
        skip = relocate = true;
2660
0
      outrel.r_offset += (input_section->output_section->vma
2661
0
              + input_section->output_offset);
2662
2663
0
      if (skip)
2664
0
        memset (&outrel, 0, sizeof outrel);
2665
0
      else if (   r_type == R_M32R_10_PCREL_RELA
2666
0
         || r_type == R_M32R_18_PCREL_RELA
2667
0
         || r_type == R_M32R_26_PCREL_RELA
2668
0
         || r_type == R_M32R_REL32)
2669
0
        {
2670
0
          BFD_ASSERT (h != NULL && h->dynindx != -1);
2671
0
          outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2672
0
          outrel.r_addend = rel->r_addend;
2673
0
        }
2674
0
      else
2675
0
        {
2676
        /* h->dynindx may be -1 if this symbol was marked to
2677
           become local.  */
2678
0
        if (h == NULL
2679
0
      || ((info->symbolic || h->dynindx == -1)
2680
0
           && h->def_regular))
2681
0
          {
2682
0
      relocate = true;
2683
0
      outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2684
0
      outrel.r_addend = relocation + rel->r_addend;
2685
0
          }
2686
0
        else
2687
0
          {
2688
0
      BFD_ASSERT (h->dynindx != -1);
2689
0
      outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2690
0
      outrel.r_addend = relocation + rel->r_addend;
2691
0
          }
2692
0
        }
2693
2694
0
      loc = sreloc->contents;
2695
0
      loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2696
0
      bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2697
0
      ++sreloc->reloc_count;
2698
2699
      /* If this reloc is against an external symbol, we do
2700
         not want to fiddle with the addend.  Otherwise, we
2701
         need to include the symbol value so that it becomes
2702
         an addend for the dynamic reloc.  */
2703
0
      if (! relocate)
2704
0
        continue;
2705
0
      break;
2706
0
    }
2707
0
        else if (r_type != R_M32R_10_PCREL_RELA)
2708
0
    break;
2709
        /* Fall through.  */
2710
2711
0
      case (int) R_M32R_10_PCREL :
2712
0
        r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2713
0
                contents, offset,
2714
0
                sec, relocation, addend);
2715
0
        goto check_reloc;
2716
2717
0
      case (int) R_M32R_HI16_SLO :
2718
0
      case (int) R_M32R_HI16_ULO :
2719
0
        {
2720
0
    Elf_Internal_Rela *lorel;
2721
2722
    /* We allow an arbitrary number of HI16 relocs before the
2723
       LO16 reloc.  This permits gcc to emit the HI and LO relocs
2724
       itself.  */
2725
0
    for (lorel = rel + 1;
2726
0
         (lorel < relend
2727
0
          && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2728
0
        || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2729
0
         lorel++)
2730
0
      continue;
2731
0
    if (lorel < relend
2732
0
        && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2733
0
      {
2734
0
        m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2735
0
              contents, relocation + addend);
2736
0
        r = bfd_reloc_ok;
2737
0
      }
2738
0
    else
2739
0
      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2740
0
            contents, offset,
2741
0
            relocation, addend);
2742
0
        }
2743
2744
0
        goto check_reloc;
2745
2746
0
      case (int) R_M32R_SDA16_RELA:
2747
0
      case (int) R_M32R_SDA16 :
2748
0
        {
2749
0
    const char *name;
2750
2751
0
    BFD_ASSERT (sec != NULL);
2752
0
    name = bfd_section_name (sec);
2753
2754
0
    if (   strcmp (name, ".sdata") == 0
2755
0
        || strcmp (name, ".sbss") == 0
2756
0
        || strcmp (name, ".scommon") == 0)
2757
0
      {
2758
0
        bfd_vma sda_base;
2759
0
        bfd *out_bfd = sec->output_section->owner;
2760
2761
0
        r = m32r_elf_final_sda_base (out_bfd, info,
2762
0
             &errmsg,
2763
0
             &sda_base);
2764
0
        if (r != bfd_reloc_ok)
2765
0
          {
2766
0
      ret = false;
2767
0
      goto check_reloc;
2768
0
          }
2769
2770
        /* At this point `relocation' contains the object's
2771
           address.  */
2772
0
        relocation -= sda_base;
2773
        /* Now it contains the offset from _SDA_BASE_.  */
2774
0
      }
2775
0
    else
2776
0
      {
2777
0
        _bfd_error_handler
2778
          /* xgettext:c-format */
2779
0
          (_("%pB: the target (%s) of an %s relocation"
2780
0
       " is in the wrong section (%pA)"),
2781
0
           input_bfd,
2782
0
           sym_name,
2783
0
           m32r_elf_howto_table[(int) r_type].name,
2784
0
           sec);
2785
        /*bfd_set_error (bfd_error_bad_value); ??? why? */
2786
0
        ret = false;
2787
0
        continue;
2788
0
      }
2789
0
        }
2790
        /* Fall through.  */
2791
2792
0
      default : /* OLD_M32R_RELOC */
2793
2794
0
        r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2795
0
              contents, offset,
2796
0
              relocation, addend);
2797
0
        goto check_reloc;
2798
0
      }
2799
2800
0
    r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2801
0
          contents, rel->r_offset,
2802
0
          relocation, rel->r_addend);
2803
2804
0
  }
2805
2806
0
    check_reloc:
2807
2808
0
      if (r != bfd_reloc_ok)
2809
0
  {
2810
    /* FIXME: This should be generic enough to go in a utility.  */
2811
0
    const char *name;
2812
2813
0
    if (h != NULL)
2814
0
      name = h->root.root.string;
2815
0
    else
2816
0
      {
2817
0
        name = (bfd_elf_string_from_elf_section
2818
0
          (input_bfd, symtab_hdr->sh_link, sym->st_name));
2819
0
        if (name == NULL || *name == '\0')
2820
0
    name = bfd_section_name (sec);
2821
0
      }
2822
2823
0
    if (errmsg != NULL)
2824
0
      goto common_error;
2825
2826
0
    switch (r)
2827
0
      {
2828
0
      case bfd_reloc_overflow:
2829
0
        (*info->callbacks->reloc_overflow)
2830
0
    (info, (h ? &h->root : NULL), name, howto->name,
2831
0
     (bfd_vma) 0, input_bfd, input_section, offset);
2832
0
        break;
2833
2834
0
      case bfd_reloc_undefined:
2835
0
        (*info->callbacks->undefined_symbol)
2836
0
    (info, name, input_bfd, input_section, offset, true);
2837
0
        break;
2838
2839
0
      case bfd_reloc_outofrange:
2840
0
        errmsg = _("internal error: out of range error");
2841
0
        goto common_error;
2842
2843
0
      case bfd_reloc_notsupported:
2844
0
        errmsg = _("internal error: unsupported relocation error");
2845
0
        goto common_error;
2846
2847
0
      case bfd_reloc_dangerous:
2848
0
        errmsg = _("internal error: dangerous error");
2849
0
        goto common_error;
2850
2851
0
      default:
2852
0
        errmsg = _("internal error: unknown error");
2853
        /* fall through */
2854
2855
0
      common_error:
2856
0
        (*info->callbacks->warning) (info, errmsg, name, input_bfd,
2857
0
             input_section, offset);
2858
0
        break;
2859
0
      }
2860
0
  }
2861
0
    }
2862
2863
0
  return ret;
2864
0
}
2865
2866
/* Finish up dynamic symbol handling.  We set the contents of various
2867
   dynamic sections here.  */
2868
2869
static bool
2870
m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
2871
        struct bfd_link_info *info,
2872
        struct elf_link_hash_entry *h,
2873
        Elf_Internal_Sym *sym)
2874
0
{
2875
0
  struct elf_link_hash_table *htab;
2876
0
  bfd_byte *loc;
2877
2878
#ifdef DEBUG_PIC
2879
  printf ("m32r_elf_finish_dynamic_symbol()\n");
2880
#endif
2881
2882
0
  htab = m32r_elf_hash_table (info);
2883
2884
0
  if (h->plt.offset != (bfd_vma) -1)
2885
0
    {
2886
0
      asection *splt;
2887
0
      asection *sgot;
2888
0
      asection *srela;
2889
2890
0
      bfd_vma plt_index;
2891
0
      bfd_vma got_offset;
2892
0
      Elf_Internal_Rela rela;
2893
2894
      /* This symbol has an entry in the procedure linkage table.  Set
2895
   it up.  */
2896
2897
0
      BFD_ASSERT (h->dynindx != -1);
2898
2899
0
      splt = htab->splt;
2900
0
      sgot = htab->sgotplt;
2901
0
      srela = htab->srelplt;
2902
0
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2903
2904
      /* Get the index in the procedure linkage table which
2905
   corresponds to this symbol.  This is the index of this symbol
2906
   in all the symbols for which we are making plt entries.  The
2907
   first entry in the procedure linkage table is reserved.  */
2908
0
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2909
2910
      /* Get the offset into the .got table of the entry that
2911
  corresponds to this function.  Each .got entry is 4 bytes.
2912
  The first three are reserved.  */
2913
0
      got_offset = (plt_index + 3) * 4;
2914
2915
      /* Fill in the entry in the procedure linkage table.  */
2916
0
      if (! bfd_link_pic (info))
2917
0
  {
2918
0
    bfd_put_32 (output_bfd,
2919
0
        (PLT_ENTRY_WORD0b
2920
0
         + (((sgot->output_section->vma
2921
0
        + sgot->output_offset
2922
0
        + got_offset) >> 16) & 0xffff)),
2923
0
        splt->contents + h->plt.offset);
2924
0
    bfd_put_32 (output_bfd,
2925
0
        (PLT_ENTRY_WORD1b
2926
0
         + ((sgot->output_section->vma
2927
0
       + sgot->output_offset
2928
0
       + got_offset) & 0xffff)),
2929
0
        splt->contents + h->plt.offset + 4);
2930
0
    bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2931
0
        splt->contents + h->plt.offset + 8);
2932
0
    bfd_put_32 (output_bfd,
2933
0
        (PLT_ENTRY_WORD3
2934
0
         + plt_index * sizeof (Elf32_External_Rela)),
2935
0
        splt->contents + h->plt.offset + 12);
2936
0
    bfd_put_32 (output_bfd,
2937
0
        (PLT_ENTRY_WORD4
2938
0
         + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2939
0
        splt->contents + h->plt.offset + 16);
2940
0
  }
2941
0
      else
2942
0
  {
2943
0
    bfd_put_32 (output_bfd,
2944
0
        PLT_ENTRY_WORD0 + got_offset,
2945
0
        splt->contents + h->plt.offset);
2946
0
    bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
2947
0
        splt->contents + h->plt.offset + 4);
2948
0
    bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2949
0
        splt->contents + h->plt.offset + 8);
2950
0
    bfd_put_32 (output_bfd,
2951
0
        (PLT_ENTRY_WORD3
2952
0
         + plt_index * sizeof (Elf32_External_Rela)),
2953
0
        splt->contents + h->plt.offset + 12);
2954
0
    bfd_put_32 (output_bfd,
2955
0
        (PLT_ENTRY_WORD4
2956
0
         + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2957
0
        splt->contents + h->plt.offset + 16);
2958
0
  }
2959
2960
      /* Fill in the entry in the global offset table.  */
2961
0
      bfd_put_32 (output_bfd,
2962
0
      (splt->output_section->vma
2963
0
       + splt->output_offset
2964
0
       + h->plt.offset
2965
0
       + 12), /* same offset */
2966
0
      sgot->contents + got_offset);
2967
2968
      /* Fill in the entry in the .rela.plt section.  */
2969
0
      rela.r_offset = (sgot->output_section->vma
2970
0
           + sgot->output_offset
2971
0
           + got_offset);
2972
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
2973
0
      rela.r_addend = 0;
2974
0
      loc = srela->contents;
2975
0
      loc += plt_index * sizeof (Elf32_External_Rela);
2976
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2977
2978
0
      if (!h->def_regular)
2979
0
  {
2980
    /* Mark the symbol as undefined, rather than as defined in
2981
       the .plt section.  Leave the value alone.  */
2982
0
    sym->st_shndx = SHN_UNDEF;
2983
0
  }
2984
0
    }
2985
2986
0
  if (h->got.offset != (bfd_vma) -1)
2987
0
    {
2988
0
      asection *sgot;
2989
0
      asection *srela;
2990
0
      Elf_Internal_Rela rela;
2991
2992
      /* This symbol has an entry in the global offset table.  Set it
2993
   up.  */
2994
2995
0
      sgot = htab->sgot;
2996
0
      srela = htab->srelgot;
2997
0
      BFD_ASSERT (sgot != NULL && srela != NULL);
2998
2999
0
      rela.r_offset = (sgot->output_section->vma
3000
0
           + sgot->output_offset
3001
0
           + (h->got.offset &~ 1));
3002
3003
      /* If this is a -Bsymbolic link, and the symbol is defined
3004
   locally, we just want to emit a RELATIVE reloc.  Likewise if
3005
   the symbol was forced to be local because of a version file.
3006
   The entry in the global offset table will already have been
3007
   initialized in the relocate_section function.  */
3008
0
      if (bfd_link_pic (info)
3009
0
    && (info->symbolic
3010
0
        || h->dynindx == -1
3011
0
        || h->forced_local)
3012
0
    && h->def_regular)
3013
0
  {
3014
0
    rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3015
0
    rela.r_addend = (h->root.u.def.value
3016
0
         + h->root.u.def.section->output_section->vma
3017
0
         + h->root.u.def.section->output_offset);
3018
0
  }
3019
0
      else
3020
0
  {
3021
0
    BFD_ASSERT ((h->got.offset & 1) == 0);
3022
0
    bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3023
0
    rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3024
0
    rela.r_addend = 0;
3025
0
  }
3026
3027
0
      loc = srela->contents;
3028
0
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3029
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3030
0
      ++srela->reloc_count;
3031
0
    }
3032
3033
0
  if (h->needs_copy)
3034
0
    {
3035
0
      asection *s;
3036
0
      Elf_Internal_Rela rela;
3037
3038
      /* This symbols needs a copy reloc.  Set it up.  */
3039
3040
0
      BFD_ASSERT (h->dynindx != -1
3041
0
      && (h->root.type == bfd_link_hash_defined
3042
0
          || h->root.type == bfd_link_hash_defweak));
3043
3044
0
      s = bfd_get_linker_section (htab->dynobj, ".rela.bss");
3045
0
      BFD_ASSERT (s != NULL);
3046
3047
0
      rela.r_offset = (h->root.u.def.value
3048
0
           + h->root.u.def.section->output_section->vma
3049
0
           + h->root.u.def.section->output_offset);
3050
0
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3051
0
      rela.r_addend = 0;
3052
0
      loc = s->contents;
3053
0
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
3054
0
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3055
0
      ++s->reloc_count;
3056
0
    }
3057
3058
  /* Mark some specially defined symbols as absolute.  */
3059
0
  if (h == htab->hdynamic || h == htab->hgot)
3060
0
    sym->st_shndx = SHN_ABS;
3061
3062
0
  return true;
3063
0
}
3064
3065
3066
/* Finish up the dynamic sections.  */
3067
3068
static bool
3069
m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3070
          struct bfd_link_info *info,
3071
          bfd_byte *buf ATTRIBUTE_UNUSED)
3072
0
{
3073
0
  struct elf_link_hash_table *htab;
3074
0
  bfd *dynobj;
3075
0
  asection *sdyn;
3076
0
  asection *sgot;
3077
3078
#ifdef DEBUG_PIC
3079
  printf ("m32r_elf_finish_dynamic_sections()\n");
3080
#endif
3081
3082
0
  htab = m32r_elf_hash_table (info);
3083
0
  if (htab == NULL)
3084
0
    return false;
3085
3086
0
  dynobj = htab->dynobj;
3087
3088
0
  sgot = htab->sgotplt;
3089
0
  sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3090
3091
0
  if (htab->dynamic_sections_created)
3092
0
    {
3093
0
      asection *splt;
3094
0
      Elf32_External_Dyn *dyncon, *dynconend;
3095
3096
0
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
3097
3098
0
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
3099
0
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3100
3101
0
      for (; dyncon < dynconend; dyncon++)
3102
0
  {
3103
0
    Elf_Internal_Dyn dyn;
3104
0
    asection *s;
3105
3106
0
    bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3107
3108
0
    switch (dyn.d_tag)
3109
0
      {
3110
0
      default:
3111
0
        break;
3112
3113
0
      case DT_PLTGOT:
3114
0
        s = htab->sgotplt;
3115
0
        goto get_vma;
3116
0
      case DT_JMPREL:
3117
0
        s = htab->srelplt;
3118
0
      get_vma:
3119
0
        dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3120
0
        bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3121
0
        break;
3122
3123
0
      case DT_PLTRELSZ:
3124
0
        s = htab->srelplt;
3125
0
        dyn.d_un.d_val = s->size;
3126
0
        bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3127
0
        break;
3128
0
      }
3129
0
  }
3130
3131
      /* Fill in the first entry in the procedure linkage table.  */
3132
0
      splt = htab->splt;
3133
0
      if (splt && splt->size > 0)
3134
0
  {
3135
0
    if (bfd_link_pic (info))
3136
0
      {
3137
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3138
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3139
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3140
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3141
0
        bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3142
0
      }
3143
0
    else
3144
0
      {
3145
0
        unsigned long addr;
3146
        /* addr = .got + 4 */
3147
0
        addr = sgot->output_section->vma + sgot->output_offset + 4;
3148
0
        bfd_put_32 (output_bfd,
3149
0
        PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3150
0
        splt->contents);
3151
0
        bfd_put_32 (output_bfd,
3152
0
        PLT0_ENTRY_WORD1 | (addr & 0xffff),
3153
0
        splt->contents + 4);
3154
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3155
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3156
0
        bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3157
0
      }
3158
3159
0
    elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3160
0
      PLT_ENTRY_SIZE;
3161
0
  }
3162
0
    }
3163
3164
  /* Fill in the first three entries in the global offset table.  */
3165
0
  if (sgot && sgot->size > 0)
3166
0
    {
3167
0
      if (sdyn == NULL)
3168
0
  bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3169
0
      else
3170
0
  bfd_put_32 (output_bfd,
3171
0
        sdyn->output_section->vma + sdyn->output_offset,
3172
0
        sgot->contents);
3173
0
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3174
0
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3175
3176
0
      elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3177
0
    }
3178
3179
0
  return true;
3180
0
}
3181
3182

3183
/* Set the right machine number.  */
3184
3185
static bool
3186
m32r_elf_object_p (bfd *abfd)
3187
239
{
3188
239
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3189
239
    {
3190
5
    default:
3191
171
    case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3192
53
    case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3193
15
    case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3194
239
    }
3195
239
  return true;
3196
239
}
3197
3198
/* Store the machine number in the flags field.  */
3199
3200
static bool
3201
m32r_elf_final_write_processing (bfd *abfd)
3202
1
{
3203
1
  unsigned long val;
3204
3205
1
  switch (bfd_get_mach (abfd))
3206
1
    {
3207
0
    default:
3208
1
    case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3209
0
    case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3210
0
    case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3211
1
    }
3212
3213
1
  elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3214
1
  elf_elfheader (abfd)->e_flags |= val;
3215
1
  return _bfd_elf_final_write_processing (abfd);
3216
1
}
3217
3218
/* Function to keep M32R specific file flags.  */
3219
3220
static bool
3221
m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3222
0
{
3223
0
  BFD_ASSERT (!elf_flags_init (abfd)
3224
0
        || elf_elfheader (abfd)->e_flags == flags);
3225
3226
0
  elf_elfheader (abfd)->e_flags = flags;
3227
0
  elf_flags_init (abfd) = true;
3228
0
  return true;
3229
0
}
3230
3231
/* Merge backend specific data from an object file to the output
3232
   object file when linking.  */
3233
3234
static bool
3235
m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
3236
0
{
3237
0
  bfd *obfd = info->output_bfd;
3238
0
  flagword out_flags;
3239
0
  flagword in_flags;
3240
3241
0
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
3242
0
    return true;
3243
3244
0
  in_flags  = elf_elfheader (ibfd)->e_flags;
3245
0
  out_flags = elf_elfheader (obfd)->e_flags;
3246
3247
0
  if (! elf_flags_init (obfd))
3248
0
    {
3249
      /* If the input is the default architecture then do not
3250
   bother setting the flags for the output architecture,
3251
   instead allow future merges to do this.  If no future
3252
   merges ever set these flags then they will retain their
3253
   unitialised values, which surprise surprise, correspond
3254
   to the default values.  */
3255
0
      if (bfd_get_arch_info (ibfd)->the_default)
3256
0
  return true;
3257
3258
0
      elf_flags_init (obfd) = true;
3259
0
      elf_elfheader (obfd)->e_flags = in_flags;
3260
3261
0
      if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3262
0
    && bfd_get_arch_info (obfd)->the_default)
3263
0
  return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3264
0
          bfd_get_mach (ibfd));
3265
3266
0
      return true;
3267
0
    }
3268
3269
  /* Check flag compatibility.  */
3270
0
  if (in_flags == out_flags)
3271
0
    return true;
3272
3273
0
  if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3274
0
    {
3275
0
      if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3276
0
    || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3277
0
    || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3278
0
  {
3279
0
    _bfd_error_handler
3280
0
      (_("%pB: instruction set mismatch with previous modules"), ibfd);
3281
3282
0
    bfd_set_error (bfd_error_bad_value);
3283
0
    return false;
3284
0
  }
3285
0
    }
3286
3287
0
  return true;
3288
0
}
3289
3290
/* Display the flags field.  */
3291
3292
static bool
3293
m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3294
49
{
3295
49
  FILE * file = (FILE *) ptr;
3296
3297
49
  BFD_ASSERT (abfd != NULL && ptr != NULL);
3298
3299
49
  _bfd_elf_print_private_bfd_data (abfd, ptr);
3300
3301
49
  fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3302
3303
49
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3304
49
    {
3305
0
    default:
3306
33
    case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3307
16
    case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3308
0
    case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3309
49
    }
3310
3311
49
  fputc ('\n', file);
3312
3313
49
  return true;
3314
49
}
3315
3316
static asection *
3317
m32r_elf_gc_mark_hook (asection *sec,
3318
           struct bfd_link_info *info,
3319
           struct elf_reloc_cookie *cookie,
3320
           struct elf_link_hash_entry *h,
3321
           unsigned int symndx)
3322
0
{
3323
0
  if (h != NULL)
3324
0
    switch (ELF32_R_TYPE (cookie->rel->r_info))
3325
0
      {
3326
0
      case R_M32R_GNU_VTINHERIT:
3327
0
      case R_M32R_GNU_VTENTRY:
3328
0
      case R_M32R_RELA_GNU_VTINHERIT:
3329
0
      case R_M32R_RELA_GNU_VTENTRY:
3330
0
  return NULL;
3331
0
      }
3332
3333
0
  return _bfd_elf_gc_mark_hook (sec, info, cookie, h, symndx);
3334
0
}
3335
3336
/* Look through the relocs for a section during the first phase.
3337
   Since we don't do .gots or .plts, we just need to consider the
3338
   virtual table relocs for gc.  */
3339
3340
static bool
3341
m32r_elf_check_relocs (bfd *abfd,
3342
           struct bfd_link_info *info,
3343
           asection *sec,
3344
           const Elf_Internal_Rela *relocs)
3345
0
{
3346
0
  Elf_Internal_Shdr *symtab_hdr;
3347
0
  struct elf_link_hash_entry **sym_hashes;
3348
0
  const Elf_Internal_Rela *rel;
3349
0
  const Elf_Internal_Rela *rel_end;
3350
0
  struct elf_link_hash_table *htab;
3351
0
  bfd *dynobj;
3352
0
  asection *sreloc;
3353
3354
0
  if (bfd_link_relocatable (info))
3355
0
    return true;
3356
3357
0
  sreloc = NULL;
3358
0
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3359
0
  sym_hashes = elf_sym_hashes (abfd);
3360
3361
0
  htab = m32r_elf_hash_table (info);
3362
0
  if (htab == NULL)
3363
0
    return false;
3364
3365
0
  dynobj = htab->dynobj;
3366
3367
0
  rel_end = relocs + sec->reloc_count;
3368
0
  for (rel = relocs; rel < rel_end; rel++)
3369
0
    {
3370
0
      int r_type;
3371
0
      struct elf_link_hash_entry *h;
3372
0
      unsigned long r_symndx;
3373
3374
0
      r_symndx = ELF32_R_SYM (rel->r_info);
3375
0
      r_type = ELF32_R_TYPE (rel->r_info);
3376
0
      if (r_symndx < symtab_hdr->sh_info)
3377
0
  h = NULL;
3378
0
      else
3379
0
  {
3380
0
    h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3381
0
    while (h->root.type == bfd_link_hash_indirect
3382
0
     || h->root.type == bfd_link_hash_warning)
3383
0
      h = (struct elf_link_hash_entry *) h->root.u.i.link;
3384
0
  }
3385
3386
      /* Some relocs require a global offset table.  */
3387
0
      if (htab->sgot == NULL)
3388
0
  {
3389
0
    switch (r_type)
3390
0
      {
3391
0
      case R_M32R_GOT16_HI_ULO:
3392
0
      case R_M32R_GOT16_HI_SLO:
3393
0
      case R_M32R_GOTOFF:
3394
0
      case R_M32R_GOTOFF_HI_ULO:
3395
0
      case R_M32R_GOTOFF_HI_SLO:
3396
0
      case R_M32R_GOTOFF_LO:
3397
0
      case R_M32R_GOT16_LO:
3398
0
      case R_M32R_GOTPC24:
3399
0
      case R_M32R_GOTPC_HI_ULO:
3400
0
      case R_M32R_GOTPC_HI_SLO:
3401
0
      case R_M32R_GOTPC_LO:
3402
0
      case R_M32R_GOT24:
3403
0
        if (dynobj == NULL)
3404
0
    htab->dynobj = dynobj = abfd;
3405
0
        if (!_bfd_elf_create_got_section (dynobj, info))
3406
0
    return false;
3407
0
        break;
3408
3409
0
      default:
3410
0
        break;
3411
0
    }
3412
0
  }
3413
3414
0
      switch (r_type)
3415
0
  {
3416
0
  case R_M32R_GOT16_HI_ULO:
3417
0
  case R_M32R_GOT16_HI_SLO:
3418
0
  case R_M32R_GOT16_LO:
3419
0
  case R_M32R_GOT24:
3420
3421
0
    if (h != NULL)
3422
0
      h->got.refcount += 1;
3423
0
    else
3424
0
      {
3425
0
        bfd_signed_vma *local_got_refcounts;
3426
3427
        /* This is a global offset table entry for a local
3428
     symbol.  */
3429
0
        local_got_refcounts = elf_local_got_refcounts (abfd);
3430
0
        if (local_got_refcounts == NULL)
3431
0
    {
3432
0
      bfd_size_type size;
3433
3434
0
      size = symtab_hdr->sh_info;
3435
0
      size *= sizeof (bfd_signed_vma);
3436
0
      local_got_refcounts = bfd_zalloc (abfd, size);
3437
0
      if (local_got_refcounts == NULL)
3438
0
        return false;
3439
0
      elf_local_got_refcounts (abfd) = local_got_refcounts;
3440
0
    }
3441
0
        local_got_refcounts[r_symndx] += 1;
3442
0
      }
3443
0
    break;
3444
3445
0
  case R_M32R_26_PLTREL:
3446
    /* This symbol requires a procedure linkage table entry.  We
3447
       actually build the entry in adjust_dynamic_symbol,
3448
       because this might be a case of linking PIC code without
3449
       linking in any dynamic objects, in which case we don't
3450
       need to generate a procedure linkage table after all.  */
3451
3452
    /* If this is a local symbol, we resolve it directly without
3453
       creating a procedure linkage table entry.  */
3454
0
    if (h == NULL)
3455
0
      continue;
3456
3457
0
    if (h->forced_local)
3458
0
      break;
3459
3460
0
    h->needs_plt = 1;
3461
0
    h->plt.refcount += 1;
3462
0
    break;
3463
3464
0
  case R_M32R_16_RELA:
3465
0
  case R_M32R_24_RELA:
3466
0
  case R_M32R_32_RELA:
3467
0
  case R_M32R_REL32:
3468
0
  case R_M32R_HI16_ULO_RELA:
3469
0
  case R_M32R_HI16_SLO_RELA:
3470
0
  case R_M32R_LO16_RELA:
3471
0
  case R_M32R_SDA16_RELA:
3472
0
  case R_M32R_10_PCREL_RELA:
3473
0
  case R_M32R_18_PCREL_RELA:
3474
0
  case R_M32R_26_PCREL_RELA:
3475
3476
0
    if (h != NULL && !bfd_link_pic (info))
3477
0
      {
3478
0
        h->non_got_ref = 1;
3479
0
        h->plt.refcount += 1;
3480
0
      }
3481
3482
    /* If we are creating a shared library, and this is a reloc
3483
       against a global symbol, or a non PC relative reloc
3484
       against a local symbol, then we need to copy the reloc
3485
       into the shared library.  However, if we are linking with
3486
       -Bsymbolic, we do not need to copy a reloc against a
3487
       global symbol which is defined in an object we are
3488
       including in the link (i.e., DEF_REGULAR is set).  At
3489
       this point we have not seen all the input files, so it is
3490
       possible that DEF_REGULAR is not set now but will be set
3491
       later (it is never cleared).  We account for that
3492
       possibility below by storing information in the
3493
       dyn_relocs field of the hash table entry. A similar
3494
       situation occurs when creating shared libraries and symbol
3495
       visibility changes render the symbol local.
3496
3497
       If on the other hand, we are creating an executable, we
3498
       may need to keep relocations for symbols satisfied by a
3499
       dynamic library if we manage to avoid copy relocs for the
3500
       symbol.  */
3501
0
    if ((bfd_link_pic (info)
3502
0
         && (sec->flags & SEC_ALLOC) != 0
3503
0
         && ((   r_type != R_M32R_26_PCREL_RELA
3504
0
        && r_type != R_M32R_18_PCREL_RELA
3505
0
        && r_type != R_M32R_10_PCREL_RELA
3506
0
        && r_type != R_M32R_REL32)
3507
0
       || (h != NULL
3508
0
           && (! info->symbolic
3509
0
         || h->root.type == bfd_link_hash_defweak
3510
0
         || !h->def_regular))))
3511
0
        || (!bfd_link_pic (info)
3512
0
      && (sec->flags & SEC_ALLOC) != 0
3513
0
      && h != NULL
3514
0
      && (h->root.type == bfd_link_hash_defweak
3515
0
          || !h->def_regular)))
3516
0
      {
3517
0
        struct elf_dyn_relocs *p;
3518
0
        struct elf_dyn_relocs **head;
3519
3520
0
        if (dynobj == NULL)
3521
0
    htab->dynobj = dynobj = abfd;
3522
3523
        /* When creating a shared object, we must copy these
3524
     relocs into the output file.  We create a reloc
3525
     section in dynobj and make room for the reloc.  */
3526
0
        if (sreloc == NULL)
3527
0
    {
3528
0
      sreloc = _bfd_elf_make_dynamic_reloc_section
3529
0
        (sec, dynobj, 2, abfd, /*rela?*/ true);
3530
3531
0
      if (sreloc == NULL)
3532
0
        return false;
3533
0
    }
3534
3535
        /* If this is a global symbol, we count the number of
3536
     relocations we need for this symbol.  */
3537
0
        if (h != NULL)
3538
0
    head = &h->dyn_relocs;
3539
0
        else
3540
0
    {
3541
      /* Track dynamic relocs needed for local syms too.  */
3542
0
      asection *s;
3543
0
      void *vpp;
3544
0
      Elf_Internal_Sym *isym;
3545
3546
0
      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3547
0
            abfd, r_symndx);
3548
0
      if (isym == NULL)
3549
0
        return false;
3550
3551
0
      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3552
0
      if (s == NULL)
3553
0
        s = sec;
3554
3555
0
      vpp = &elf_section_data (s)->local_dynrel;
3556
0
      head = (struct elf_dyn_relocs **) vpp;
3557
0
    }
3558
3559
0
        p = *head;
3560
0
        if (p == NULL || p->sec != sec)
3561
0
    {
3562
0
      size_t amt = sizeof (*p);
3563
3564
0
      p = bfd_alloc (dynobj, amt);
3565
0
      if (p == NULL)
3566
0
        return false;
3567
0
      p->next = *head;
3568
0
      *head = p;
3569
0
      p->sec = sec;
3570
0
      p->count = 0;
3571
0
      p->pc_count = 0;
3572
0
    }
3573
3574
0
        p->count += 1;
3575
0
        if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3576
0
      || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3577
0
      || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3578
0
      || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3579
0
    p->pc_count += 1;
3580
0
      }
3581
0
    break;
3582
3583
  /* This relocation describes the C++ object vtable hierarchy.
3584
     Reconstruct it for later use during GC.  */
3585
0
  case R_M32R_RELA_GNU_VTINHERIT:
3586
0
  case R_M32R_GNU_VTINHERIT:
3587
0
    if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3588
0
      return false;
3589
0
    break;
3590
3591
  /* This relocation describes which C++ vtable entries are actually
3592
     used.  Record for later use during GC.  */
3593
0
  case R_M32R_GNU_VTENTRY:
3594
0
    if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3595
0
      return false;
3596
0
    break;
3597
0
  case R_M32R_RELA_GNU_VTENTRY:
3598
0
    if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3599
0
      return false;
3600
0
    break;
3601
0
  }
3602
0
    }
3603
3604
0
  return true;
3605
0
}
3606
3607
static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3608
{
3609
  { STRING_COMMA_LEN (".sbss"),  -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
3610
  { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3611
  { NULL,         0,  0, 0,      0 }
3612
};
3613
3614
static bool
3615
m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
3616
1.20k
{
3617
1.20k
  const char *name = hdr->bfd_section->name;
3618
3619
1.20k
  if (startswith (name, ".sbss")
3620
1.16k
      || startswith (name, ".sdata"))
3621
92
    hdr->bfd_section->flags |= SEC_SMALL_DATA;
3622
3623
1.20k
  return true;
3624
1.20k
}
3625
3626
static enum elf_reloc_type_class
3627
m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3628
         const asection *rel_sec ATTRIBUTE_UNUSED,
3629
         const Elf_Internal_Rela *rela)
3630
0
{
3631
0
  switch ((int) ELF32_R_TYPE (rela->r_info))
3632
0
    {
3633
0
    case R_M32R_RELATIVE:  return reloc_class_relative;
3634
0
    case R_M32R_JMP_SLOT:  return reloc_class_plt;
3635
0
    case R_M32R_COPY:      return reloc_class_copy;
3636
0
    default:       return reloc_class_normal;
3637
0
    }
3638
0
}
3639

3640
#define ELF_ARCH    bfd_arch_m32r
3641
#define ELF_TARGET_ID   M32R_ELF_DATA
3642
#define ELF_MACHINE_CODE  EM_M32R
3643
#define ELF_MACHINE_ALT1  EM_CYGNUS_M32R
3644
#define ELF_MAXPAGESIZE   0x1 /* Explicitly requested by Mitsubishi.  */
3645
3646
#define TARGET_BIG_SYM    m32r_elf32_vec
3647
#define TARGET_BIG_NAME   "elf32-m32r"
3648
#define TARGET_LITTLE_SYM m32r_elf32_le_vec
3649
#define TARGET_LITTLE_NAME  "elf32-m32rle"
3650
3651
#define elf_info_to_howto     m32r_info_to_howto
3652
#define elf_info_to_howto_rel     m32r_info_to_howto_rel
3653
#define elf_backend_section_from_bfd_section  _bfd_m32r_elf_section_from_bfd_section
3654
#define elf_backend_symbol_processing   _bfd_m32r_elf_symbol_processing
3655
#define elf_backend_add_symbol_hook   m32r_elf_add_symbol_hook
3656
#define elf_backend_relocate_section    m32r_elf_relocate_section
3657
#define elf_backend_gc_mark_hook    m32r_elf_gc_mark_hook
3658
#define elf_backend_check_relocs    m32r_elf_check_relocs
3659
3660
#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3661
#define bfd_elf32_bfd_link_hash_table_create  m32r_elf_link_hash_table_create
3662
#define elf_backend_late_size_sections    m32r_elf_late_size_sections
3663
#define elf_backend_omit_section_dynsym   _bfd_elf_omit_section_dynsym_all
3664
#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3665
#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3666
#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3667
#define elf_backend_reloc_type_class    m32r_elf_reloc_type_class
3668
3669
#define elf_backend_can_gc_sections   1
3670
/*#if !USE_REL
3671
#define elf_backend_rela_normal     1
3672
#endif*/
3673
#define elf_backend_can_refcount 1
3674
#define elf_backend_want_got_plt 1
3675
#define elf_backend_plt_readonly 1
3676
#define elf_backend_want_plt_sym 0
3677
#define elf_backend_got_header_size 12
3678
#define elf_backend_dtrel_excludes_plt  1
3679
3680
#define elf_backend_may_use_rel_p 1
3681
#ifdef USE_M32R_OLD_RELOC
3682
#define elf_backend_default_use_rela_p  0
3683
#define elf_backend_may_use_rela_p  0
3684
#else
3685
#define elf_backend_default_use_rela_p  1
3686
#define elf_backend_may_use_rela_p  1
3687
#endif
3688
3689
#define elf_backend_object_p      m32r_elf_object_p
3690
#define elf_backend_final_write_processing  m32r_elf_final_write_processing
3691
#define bfd_elf32_bfd_merge_private_bfd_data  m32r_elf_merge_private_bfd_data
3692
#define bfd_elf32_bfd_set_private_flags   m32r_elf_set_private_flags
3693
#define bfd_elf32_bfd_print_private_bfd_data  m32r_elf_print_private_bfd_data
3694
#define elf_backend_special_sections    m32r_elf_special_sections
3695
#define elf_backend_section_flags   m32r_elf_section_flags
3696
3697
#define elf_backend_linux_prpsinfo32_ugid16 true
3698
3699
#include "elf32-target.h"
3700
3701
#undef  ELF_MAXPAGESIZE
3702
#define ELF_MAXPAGESIZE   0x1000
3703
3704
#undef  TARGET_BIG_SYM
3705
#define TARGET_BIG_SYM    m32r_elf32_linux_vec
3706
#undef  TARGET_BIG_NAME
3707
#define TARGET_BIG_NAME   "elf32-m32r-linux"
3708
#undef  TARGET_LITTLE_SYM
3709
#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3710
#undef  TARGET_LITTLE_NAME
3711
#define TARGET_LITTLE_NAME  "elf32-m32rle-linux"
3712
#undef  elf32_bed
3713
#define elf32_bed   elf32_m32r_lin_bed
3714
3715
#include "elf32-target.h"