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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [elf32-m32r.c] - Blame information for rev 266

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1 14 khays
/* M32R-specific support for 32-bit ELF.
2
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 148 khays
   2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4 14 khays
 
5
   This file is part of BFD, the Binary File Descriptor library.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 3 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
   MA 02110-1301, USA.  */
21
 
22
#include "sysdep.h"
23
#include "bfd.h"
24
#include "libbfd.h"
25
#include "elf-bfd.h"
26
#include "elf/m32r.h"
27
 
28
#define NOP_INSN                0x7000
29
#define MAKE_PARALLEL(insn)     ((insn) | 0x8000)
30
 
31
/* Use REL instead of RELA to save space.
32
   This only saves space in libraries and object files, but perhaps
33
   relocs will be put in ROM?  All in all though, REL relocs are a pain
34
   to work with.  */
35
/* #define USE_REL      1
36
 
37
#ifndef USE_REL
38
#define USE_REL 0
39
#endif */
40
/* Use RELA. But use REL to link old objects for backwords compatibility.  */
41
 
42
/* Functions for the M32R ELF linker.  */
43
 
44
/* The name of the dynamic interpreter.  This is put in the .interp
45
   section.  */
46
 
47
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
48
 
49
/* The nop opcode we use.  */
50
 
51
#define M32R_NOP 0x7000f000
52
 
53
#define PLT_EMPTY   0x10101010  /* RIE  -> RIE */
54
 
55
/* The size in bytes of an entry in the procedure linkage table.  */
56
 
57
#define PLT_ENTRY_SIZE 20
58
#define PLT_HEADER_SIZE 20
59
 
60
/* The first one entries in a procedure linkage table are reserved,
61
   and the initial contents are unimportant (we zero them out).
62
   Subsequent entries look like this. */
63
 
64
#define PLT0_ENTRY_WORD0  0xd6c00000    /* seth r6, #high(.got+4)          */
65
#define PLT0_ENTRY_WORD1  0x86e60000    /* or3  r6, r6, #low(.got)+4)      */
66
#define PLT0_ENTRY_WORD2  0x24e626c6    /* ld   r4, @r6+    -> ld r6, @r6  */
67
#define PLT0_ENTRY_WORD3  0x1fc6f000    /* jmp  r6          || pnop        */
68
#define PLT0_ENTRY_WORD4  PLT_EMPTY     /* RIE             -> RIE          */
69
 
70
#define PLT0_PIC_ENTRY_WORD0  0xa4cc0004 /* ld   r4, @(4,r12)              */
71
#define PLT0_PIC_ENTRY_WORD1  0xa6cc0008 /* ld   r6, @(8,r12)              */
72
#define PLT0_PIC_ENTRY_WORD2  0x1fc6f000 /* jmp  r6         || nop         */
73
#define PLT0_PIC_ENTRY_WORD3  PLT_EMPTY  /* RIE             -> RIE         */
74
#define PLT0_PIC_ENTRY_WORD4  PLT_EMPTY  /* RIE             -> RIE         */
75
 
76
#define PLT_ENTRY_WORD0  0xe6000000 /* ld24 r6, .name_in_GOT                */
77
#define PLT_ENTRY_WORD1  0x06acf000 /* add  r6, r12          || nop         */
78
#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT)         */
79
#define PLT_ENTRY_WORD1b 0x86e60000 /* or3  r6, r6, #low(.name_in_GOT)      */
80
#define PLT_ENTRY_WORD2  0x26c61fc6 /* ld  r6, @r6           -> jmp r6      */
81
#define PLT_ENTRY_WORD3  0xe5000000 /* ld24 r5, $offset                     */
82
#define PLT_ENTRY_WORD4  0xff000000 /* bra  .plt0.                          */
83
 
84
 
85
/* Utility to actually perform an R_M32R_10_PCREL reloc.  */
86
 
87
static bfd_reloc_status_type
88
m32r_elf_do_10_pcrel_reloc (bfd *abfd,
89
                            reloc_howto_type *howto,
90
                            asection *input_section,
91
                            bfd_byte *data,
92
                            bfd_vma offset,
93
                            asection *symbol_section ATTRIBUTE_UNUSED,
94
                            bfd_vma symbol_value,
95
                            bfd_vma addend)
96
{
97
  bfd_signed_vma relocation;
98
  unsigned long x;
99
  bfd_reloc_status_type status;
100
 
101
  /* Sanity check the address (offset in section).  */
102
  if (offset > bfd_get_section_limit (abfd, input_section))
103
    return bfd_reloc_outofrange;
104
 
105
  relocation = symbol_value + addend;
106
  /* Make it pc relative.  */
107
  relocation -= (input_section->output_section->vma
108
                 + input_section->output_offset);
109
  /* These jumps mask off the lower two bits of the current address
110
     before doing pcrel calculations.  */
111
  relocation -= (offset & -(bfd_vma) 4);
112
 
113
  if (relocation < -0x200 || relocation > 0x1ff)
114
    status = bfd_reloc_overflow;
115
  else
116
    status = bfd_reloc_ok;
117
 
118
  x = bfd_get_16 (abfd, data + offset);
119
  relocation >>= howto->rightshift;
120
  relocation <<= howto->bitpos;
121
  x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
122
  bfd_put_16 (abfd, (bfd_vma) x, data + offset);
123
 
124
  return status;
125
}
126
 
127
/* Handle the R_M32R_10_PCREL reloc.  */
128
 
129
static bfd_reloc_status_type
130
m32r_elf_10_pcrel_reloc (bfd * abfd,
131
                         arelent * reloc_entry,
132
                         asymbol * symbol,
133
                         void * data,
134
                         asection * input_section,
135
                         bfd * output_bfd,
136
                         char ** error_message ATTRIBUTE_UNUSED)
137
{
138
  /* This part is from bfd_elf_generic_reloc.  */
139
  if (output_bfd != NULL
140
      && (symbol->flags & BSF_SECTION_SYM) == 0
141
      && (! reloc_entry->howto->partial_inplace
142
          || reloc_entry->addend == 0))
143
    {
144
      reloc_entry->address += input_section->output_offset;
145
      return bfd_reloc_ok;
146
    }
147
 
148
  if (output_bfd != NULL)
149
    /* FIXME: See bfd_perform_relocation.  Is this right?  */
150
    return bfd_reloc_continue;
151
 
152
  return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
153
                                     input_section,
154
                                     data, reloc_entry->address,
155
                                     symbol->section,
156
                                     (symbol->value
157
                                      + symbol->section->output_section->vma
158
                                      + symbol->section->output_offset),
159
                                     reloc_entry->addend);
160
}
161
 
162
/* Do generic partial_inplace relocation.
163
   This is a local replacement for bfd_elf_generic_reloc.  */
164
 
165
static bfd_reloc_status_type
166
m32r_elf_generic_reloc (bfd *input_bfd,
167
                        arelent *reloc_entry,
168
                        asymbol *symbol,
169
                        void * data,
170
                        asection *input_section,
171
                        bfd *output_bfd,
172
                        char **error_message ATTRIBUTE_UNUSED)
173
{
174
  bfd_reloc_status_type ret;
175
  bfd_vma relocation;
176
  bfd_byte *inplace_address;
177
 
178
  /* This part is from bfd_elf_generic_reloc.
179
     If we're relocating, and this an external symbol, we don't want
180
     to change anything.  */
181
  if (output_bfd != NULL
182
      && (symbol->flags & BSF_SECTION_SYM) == 0
183
      && reloc_entry->addend == 0)
184
    {
185
      reloc_entry->address += input_section->output_offset;
186
      return bfd_reloc_ok;
187
    }
188
 
189
  /* Now do the reloc in the usual way.
190
     ??? It would be nice to call bfd_elf_generic_reloc here,
191
     but we have partial_inplace set.  bfd_elf_generic_reloc will
192
     pass the handling back to bfd_install_relocation which will install
193
     a section relative addend which is wrong.  */
194
 
195
  /* Sanity check the address (offset in section).  */
196
  if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
197
    return bfd_reloc_outofrange;
198
 
199
  ret = bfd_reloc_ok;
200
  if (bfd_is_und_section (symbol->section)
201
      && output_bfd == NULL)
202
    ret = bfd_reloc_undefined;
203
 
204
  if (bfd_is_com_section (symbol->section)
205
      || output_bfd != NULL)
206
    relocation = 0;
207
  else
208
    relocation = symbol->value;
209
 
210
  /* Only do this for a final link.  */
211
  if (output_bfd == NULL)
212
    {
213
      relocation += symbol->section->output_section->vma;
214
      relocation += symbol->section->output_offset;
215
    }
216
 
217
  relocation += reloc_entry->addend;
218
  inplace_address = (bfd_byte *) data + reloc_entry->address;
219
 
220
#define DOIT(x)                                         \
221
  x = ( (x & ~reloc_entry->howto->dst_mask) |           \
222
  (((x & reloc_entry->howto->src_mask) +  relocation) & \
223
  reloc_entry->howto->dst_mask))
224
 
225
  switch (reloc_entry->howto->size)
226
    {
227
    case 1:
228
      {
229
        short x = bfd_get_16 (input_bfd, inplace_address);
230
        DOIT (x);
231
        bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
232
      }
233
      break;
234
    case 2:
235
      {
236
        unsigned long x = bfd_get_32 (input_bfd, inplace_address);
237
        DOIT (x);
238
        bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
239
      }
240
      break;
241
    default:
242
      BFD_ASSERT (0);
243
    }
244
 
245
  if (output_bfd != NULL)
246
    reloc_entry->address += input_section->output_offset;
247
 
248
  return ret;
249
}
250
 
251
/* Handle the R_M32R_SDA16 reloc.
252
   This reloc is used to compute the address of objects in the small data area
253
   and to perform loads and stores from that area.
254
   The lower 16 bits are sign extended and added to the register specified
255
   in the instruction, which is assumed to point to _SDA_BASE_.  */
256
 
257
static bfd_reloc_status_type
258
m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
259
                      arelent *reloc_entry,
260
                      asymbol *symbol,
261
                      void * data ATTRIBUTE_UNUSED,
262
                      asection *input_section,
263
                      bfd *output_bfd,
264
                      char **error_message ATTRIBUTE_UNUSED)
265
{
266
  /* This part is from bfd_elf_generic_reloc.  */
267
  if (output_bfd != NULL
268
      && (symbol->flags & BSF_SECTION_SYM) == 0
269
      && (! reloc_entry->howto->partial_inplace
270
          || reloc_entry->addend == 0))
271
    {
272
      reloc_entry->address += input_section->output_offset;
273
      return bfd_reloc_ok;
274
    }
275
 
276
  if (output_bfd != NULL)
277
    /* FIXME: See bfd_perform_relocation.  Is this right?  */
278
    return bfd_reloc_continue;
279
 
280
  /* FIXME: not sure what to do here yet.  But then again, the linker
281
     may never call us.  */
282
  abort ();
283
}
284
 
285
 
286
/* Handle the R_M32R_HI16_[SU]LO relocs.
287
   HI16_SLO is for the add3 and load/store with displacement instructions.
288
   HI16_ULO is for the or3 instruction.
289
   For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
290
   the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
291
   we must add one to the high 16 bytes (which will get subtracted off when
292
   the low 16 bits are added).
293
   These relocs have to be done in combination with an R_M32R_LO16 reloc
294
   because there is a carry from the LO16 to the HI16.  Here we just save
295
   the information we need; we do the actual relocation when we see the LO16.
296
   This code is copied from the elf32-mips.c.  We also support an arbitrary
297
   number of HI16 relocs to be associated with a single LO16 reloc.  The
298
   assembler sorts the relocs to ensure each HI16 immediately precedes its
299
   LO16.  However if there are multiple copies, the assembler may not find
300
   the real LO16 so it picks the first one it finds.  */
301
 
302
struct m32r_hi16
303
{
304
  struct m32r_hi16 *next;
305
  bfd_byte *addr;
306
  bfd_vma addend;
307
};
308
 
309
/* FIXME: This should not be a static variable.  */
310
 
311
static struct m32r_hi16 *m32r_hi16_list;
312
 
313
static bfd_reloc_status_type
314
m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
315
                     arelent *reloc_entry,
316
                     asymbol *symbol,
317
                     void * data,
318
                     asection *input_section,
319
                     bfd *output_bfd,
320
                     char **error_message ATTRIBUTE_UNUSED)
321
{
322
  bfd_reloc_status_type ret;
323
  bfd_vma relocation;
324
  struct m32r_hi16 *n;
325
 
326
  /* This part is from bfd_elf_generic_reloc.
327
     If we're relocating, and this an external symbol, we don't want
328
     to change anything.  */
329
  if (output_bfd != NULL
330
      && (symbol->flags & BSF_SECTION_SYM) == 0
331
      && reloc_entry->addend == 0)
332
    {
333
      reloc_entry->address += input_section->output_offset;
334
      return bfd_reloc_ok;
335
    }
336
 
337
  /* Sanity check the address (offset in section).  */
338
  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
339
    return bfd_reloc_outofrange;
340
 
341
  ret = bfd_reloc_ok;
342
  if (bfd_is_und_section (symbol->section)
343
      && output_bfd == NULL)
344
    ret = bfd_reloc_undefined;
345
 
346
  if (bfd_is_com_section (symbol->section))
347
    relocation = 0;
348
  else
349
    relocation = symbol->value;
350
 
351
  relocation += symbol->section->output_section->vma;
352
  relocation += symbol->section->output_offset;
353
  relocation += reloc_entry->addend;
354
 
355
  /* Save the information, and let LO16 do the actual relocation.  */
356
  n = bfd_malloc ((bfd_size_type) sizeof *n);
357
  if (n == NULL)
358
    return bfd_reloc_outofrange;
359
  n->addr = (bfd_byte *) data + reloc_entry->address;
360
  n->addend = relocation;
361
  n->next = m32r_hi16_list;
362
  m32r_hi16_list = n;
363
 
364
  if (output_bfd != NULL)
365
    reloc_entry->address += input_section->output_offset;
366
 
367
  return ret;
368
}
369
 
370
/* Handle an M32R ELF HI16 reloc.  */
371
 
372
static void
373
m32r_elf_relocate_hi16 (bfd *input_bfd,
374
                        int type,
375
                        Elf_Internal_Rela *relhi,
376
                        Elf_Internal_Rela *rello,
377
                        bfd_byte *contents,
378
                        bfd_vma addend)
379
{
380
  unsigned long insn;
381
  bfd_vma addlo;
382
 
383
  insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
384
 
385
  addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
386
  if (type == R_M32R_HI16_SLO)
387
    addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
388
  else
389
    addlo &= 0xffff;
390
 
391
  addend += ((insn & 0xffff) << 16) + addlo;
392
 
393
  /* Reaccount for sign extension of low part.  */
394
  if (type == R_M32R_HI16_SLO
395
      && (addend & 0x8000) != 0)
396
    addend += 0x10000;
397
 
398
  bfd_put_32 (input_bfd,
399
              (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
400
              contents + relhi->r_offset);
401
}
402
 
403
/* Do an R_M32R_LO16 relocation.  This is a straightforward 16 bit
404
   inplace relocation; this function exists in order to do the
405
   R_M32R_HI16_[SU]LO relocation described above.  */
406
 
407
static bfd_reloc_status_type
408
m32r_elf_lo16_reloc (bfd *input_bfd,
409
                     arelent *reloc_entry,
410
                     asymbol *symbol,
411
                     void * data,
412
                     asection *input_section,
413
                     bfd *output_bfd,
414
                     char **error_message)
415
{
416
  /* This part is from bfd_elf_generic_reloc.
417
     If we're relocating, and this an external symbol, we don't want
418
     to change anything.  */
419
  if (output_bfd != NULL
420
      && (symbol->flags & BSF_SECTION_SYM) == 0
421
      && reloc_entry->addend == 0)
422
    {
423
      reloc_entry->address += input_section->output_offset;
424
      return bfd_reloc_ok;
425
    }
426
 
427
  if (m32r_hi16_list != NULL)
428
    {
429
      struct m32r_hi16 *l;
430
 
431
      l = m32r_hi16_list;
432
      while (l != NULL)
433
        {
434
          unsigned long insn;
435
          unsigned long val;
436
          unsigned long vallo;
437
          struct m32r_hi16 *next;
438
 
439
          /* Do the HI16 relocation.  Note that we actually don't need
440
             to know anything about the LO16 itself, except where to
441
             find the low 16 bits of the addend needed by the LO16.  */
442
          insn = bfd_get_32 (input_bfd, l->addr);
443
          vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
444
                   & 0xffff) ^ 0x8000) - 0x8000;
445
          val = ((insn & 0xffff) << 16) + vallo;
446
          val += l->addend;
447
 
448
          /* Reaccount for sign extension of low part.  */
449
          if ((val & 0x8000) != 0)
450
            val += 0x10000;
451
 
452
          insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
453
          bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
454
 
455
          next = l->next;
456
          free (l);
457
          l = next;
458
        }
459
 
460
      m32r_hi16_list = NULL;
461
    }
462
 
463
  /* Now do the LO16 reloc in the usual way.
464
     ??? It would be nice to call bfd_elf_generic_reloc here,
465
     but we have partial_inplace set.  bfd_elf_generic_reloc will
466
     pass the handling back to bfd_install_relocation which will install
467
     a section relative addend which is wrong.  */
468
  return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
469
                                input_section, output_bfd, error_message);
470
}
471
 
472
 
473
static reloc_howto_type m32r_elf_howto_table[] =
474
{
475
  /* This reloc does nothing.  */
476
  HOWTO (R_M32R_NONE,           /* type */
477
         0,                      /* rightshift */
478
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
479
         32,                    /* bitsize */
480
         FALSE,                 /* pc_relative */
481
         0,                      /* bitpos */
482
         complain_overflow_bitfield, /* complain_on_overflow */
483
         bfd_elf_generic_reloc, /* special_function */
484
         "R_M32R_NONE",         /* name */
485
         FALSE,                 /* partial_inplace */
486
         0,                      /* src_mask */
487
         0,                      /* dst_mask */
488
         FALSE),                /* pcrel_offset */
489
 
490
  /* A 16 bit absolute relocation.  */
491
  HOWTO (R_M32R_16,             /* type */
492
         0,                      /* rightshift */
493
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
494
         16,                    /* bitsize */
495
         FALSE,                 /* pc_relative */
496
         0,                      /* bitpos */
497
         complain_overflow_bitfield, /* complain_on_overflow */
498
         m32r_elf_generic_reloc,/* special_function */
499
         "R_M32R_16",           /* name */
500
         TRUE,                  /* partial_inplace */
501
         0xffff,                /* src_mask */
502
         0xffff,                /* dst_mask */
503
         FALSE),                /* pcrel_offset */
504
 
505
  /* A 32 bit absolute relocation.  */
506
  HOWTO (R_M32R_32,             /* type */
507
         0,                      /* rightshift */
508
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
509
         32,                    /* bitsize */
510
         FALSE,                 /* pc_relative */
511
         0,                      /* bitpos */
512
         complain_overflow_bitfield, /* complain_on_overflow */
513
         m32r_elf_generic_reloc,/* special_function */
514
         "R_M32R_32",           /* name */
515
         TRUE,                  /* partial_inplace */
516
         0xffffffff,            /* src_mask */
517
         0xffffffff,            /* dst_mask */
518
         FALSE),                /* pcrel_offset */
519
 
520
  /* A 24 bit address.  */
521
  HOWTO (R_M32R_24,             /* type */
522
         0,                      /* rightshift */
523
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
524
         24,                    /* bitsize */
525
         FALSE,                 /* pc_relative */
526
         0,                      /* bitpos */
527
         complain_overflow_unsigned, /* complain_on_overflow */
528
         m32r_elf_generic_reloc,/* special_function */
529
         "R_M32R_24",           /* name */
530
         TRUE,                  /* partial_inplace */
531
         0xffffff,              /* src_mask */
532
         0xffffff,              /* dst_mask */
533
         FALSE),                /* pcrel_offset */
534
 
535
  /* An PC Relative 10-bit relocation, shifted by 2.
536
     This reloc is complicated because relocations are relative to pc & -4.
537
     i.e. branches in the right insn slot use the address of the left insn
538
     slot for pc.  */
539
  /* ??? It's not clear whether this should have partial_inplace set or not.
540
     Branch relaxing in the assembler can store the addend in the insn,
541
     and if bfd_install_relocation gets called the addend may get added
542
     again.  */
543
  HOWTO (R_M32R_10_PCREL,       /* type */
544
         2,                     /* rightshift */
545
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
546
         10,                    /* bitsize */
547
         TRUE,                  /* pc_relative */
548
         0,                      /* bitpos */
549
         complain_overflow_signed, /* complain_on_overflow */
550
         m32r_elf_10_pcrel_reloc, /* special_function */
551
         "R_M32R_10_PCREL",     /* name */
552
         FALSE,                 /* partial_inplace */
553
         0xff,                  /* src_mask */
554
         0xff,                  /* dst_mask */
555
         TRUE),                 /* pcrel_offset */
556
 
557
  /* A relative 18 bit relocation, right shifted by 2.  */
558
  HOWTO (R_M32R_18_PCREL,       /* type */
559
         2,                     /* rightshift */
560
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
561
         16,                    /* bitsize */
562
         TRUE,                  /* pc_relative */
563
         0,                      /* bitpos */
564
         complain_overflow_signed, /* complain_on_overflow */
565
         bfd_elf_generic_reloc, /* special_function */
566
         "R_M32R_18_PCREL",     /* name */
567
         FALSE,                 /* partial_inplace */
568
         0xffff,                /* src_mask */
569
         0xffff,                /* dst_mask */
570
         TRUE),                 /* pcrel_offset */
571
 
572
  /* A relative 26 bit relocation, right shifted by 2.  */
573
  /* ??? It's not clear whether this should have partial_inplace set or not.
574
     Branch relaxing in the assembler can store the addend in the insn,
575
     and if bfd_install_relocation gets called the addend may get added
576
     again.  */
577
  HOWTO (R_M32R_26_PCREL,       /* type */
578
         2,                     /* rightshift */
579
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
580
         26,                    /* bitsize */
581
         TRUE,                  /* pc_relative */
582
         0,                      /* bitpos */
583
         complain_overflow_signed, /* complain_on_overflow */
584
         bfd_elf_generic_reloc, /* special_function */
585
         "R_M32R_26_PCREL",     /* name */
586
         FALSE,                 /* partial_inplace */
587
         0xffffff,              /* src_mask */
588
         0xffffff,              /* dst_mask */
589
         TRUE),                 /* pcrel_offset */
590
 
591
  /* High 16 bits of address when lower 16 is or'd in.  */
592
  HOWTO (R_M32R_HI16_ULO,       /* type */
593
         16,                    /* rightshift */
594
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
595
         16,                    /* bitsize */
596
         FALSE,                 /* pc_relative */
597
         0,                      /* bitpos */
598
         complain_overflow_dont, /* complain_on_overflow */
599
         m32r_elf_hi16_reloc,   /* special_function */
600
         "R_M32R_HI16_ULO",     /* name */
601
         TRUE,                  /* partial_inplace */
602
         0x0000ffff,            /* src_mask */
603
         0x0000ffff,            /* dst_mask */
604
         FALSE),                /* pcrel_offset */
605
 
606
  /* High 16 bits of address when lower 16 is added in.  */
607
  HOWTO (R_M32R_HI16_SLO,       /* type */
608
         16,                    /* rightshift */
609
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
610
         16,                    /* bitsize */
611
         FALSE,                 /* pc_relative */
612
         0,                      /* bitpos */
613
         complain_overflow_dont, /* complain_on_overflow */
614
         m32r_elf_hi16_reloc,   /* special_function */
615
         "R_M32R_HI16_SLO",     /* name */
616
         TRUE,                  /* partial_inplace */
617
         0x0000ffff,            /* src_mask */
618
         0x0000ffff,            /* dst_mask */
619
         FALSE),                /* pcrel_offset */
620
 
621
  /* Lower 16 bits of address.  */
622
  HOWTO (R_M32R_LO16,           /* type */
623
         0,                      /* rightshift */
624
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
625
         16,                    /* bitsize */
626
         FALSE,                 /* pc_relative */
627
         0,                      /* bitpos */
628
         complain_overflow_dont, /* complain_on_overflow */
629
         m32r_elf_lo16_reloc,   /* special_function */
630
         "R_M32R_LO16",         /* name */
631
         TRUE,                  /* partial_inplace */
632
         0x0000ffff,            /* src_mask */
633
         0x0000ffff,            /* dst_mask */
634
         FALSE),                /* pcrel_offset */
635
 
636
  /* Small data area 16 bits offset.  */
637
  HOWTO (R_M32R_SDA16,          /* type */
638
         0,                      /* rightshift */
639
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
640
         16,                    /* bitsize */
641
         FALSE,                 /* pc_relative */
642
         0,                      /* bitpos */
643
         complain_overflow_signed, /* complain_on_overflow */
644
         m32r_elf_sda16_reloc,  /* special_function */
645
         "R_M32R_SDA16",        /* name */
646
         TRUE,                  /* partial_inplace */  /* FIXME: correct? */
647
         0x0000ffff,            /* src_mask */
648
         0x0000ffff,            /* dst_mask */
649
         FALSE),                /* pcrel_offset */
650
 
651
  /* GNU extension to record C++ vtable hierarchy.  */
652
  HOWTO (R_M32R_GNU_VTINHERIT, /* type */
653
         0,                     /* rightshift */
654
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
655
         0,                     /* bitsize */
656
         FALSE,                 /* pc_relative */
657
         0,                     /* bitpos */
658
         complain_overflow_dont, /* complain_on_overflow */
659
         NULL,                  /* special_function */
660
         "R_M32R_GNU_VTINHERIT", /* name */
661
         FALSE,                 /* partial_inplace */
662
         0,                     /* src_mask */
663
         0,                     /* dst_mask */
664
         FALSE),                /* pcrel_offset */
665
 
666
  /* GNU extension to record C++ vtable member usage.  */
667
  HOWTO (R_M32R_GNU_VTENTRY,     /* type */
668
         0,                     /* rightshift */
669
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
670
         0,                     /* bitsize */
671
         FALSE,                 /* pc_relative */
672
         0,                     /* bitpos */
673
         complain_overflow_dont, /* complain_on_overflow */
674
         _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
675
         "R_M32R_GNU_VTENTRY",   /* name */
676
         FALSE,                 /* partial_inplace */
677
         0,                     /* src_mask */
678
         0,                     /* dst_mask */
679
         FALSE),                /* pcrel_offset */
680
 
681
  EMPTY_HOWTO (13),
682
  EMPTY_HOWTO (14),
683
  EMPTY_HOWTO (15),
684
  EMPTY_HOWTO (16),
685
  EMPTY_HOWTO (17),
686
  EMPTY_HOWTO (18),
687
  EMPTY_HOWTO (19),
688
  EMPTY_HOWTO (20),
689
  EMPTY_HOWTO (21),
690
  EMPTY_HOWTO (22),
691
  EMPTY_HOWTO (23),
692
  EMPTY_HOWTO (24),
693
  EMPTY_HOWTO (25),
694
  EMPTY_HOWTO (26),
695
  EMPTY_HOWTO (27),
696
  EMPTY_HOWTO (28),
697
  EMPTY_HOWTO (29),
698
  EMPTY_HOWTO (30),
699
  EMPTY_HOWTO (31),
700
  EMPTY_HOWTO (32),
701
 
702
  /* A 16 bit absolute relocation.  */
703
  HOWTO (R_M32R_16_RELA,        /* type */
704
         0,                      /* rightshift */
705
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
706
         16,                    /* bitsize */
707
         FALSE,                 /* pc_relative */
708
         0,                      /* bitpos */
709
         complain_overflow_bitfield, /* complain_on_overflow */
710
         bfd_elf_generic_reloc, /* special_function */
711
         "R_M32R_16_RELA",      /* name */
712
         FALSE,                 /* partial_inplace */
713
         0xffff,                /* src_mask */
714
         0xffff,                /* dst_mask */
715
         FALSE),                /* pcrel_offset */
716
 
717
  /* A 32 bit absolute relocation.  */
718
  HOWTO (R_M32R_32_RELA,        /* type */
719
         0,                      /* rightshift */
720
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
721
         32,                    /* bitsize */
722
         FALSE,                 /* pc_relative */
723
         0,                      /* bitpos */
724
         complain_overflow_bitfield, /* complain_on_overflow */
725
         bfd_elf_generic_reloc,/* special_function */
726
         "R_M32R_32_RELA",              /* name */
727
         FALSE,                 /* partial_inplace */
728
         0xffffffff,            /* src_mask */
729
         0xffffffff,            /* dst_mask */
730
         FALSE),                /* pcrel_offset */
731
 
732
  /* A 24 bit address.  */
733
  HOWTO (R_M32R_24_RELA,        /* type */
734
         0,                      /* rightshift */
735
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
736
         24,                    /* bitsize */
737
         FALSE,                 /* pc_relative */
738
         0,                      /* bitpos */
739
         complain_overflow_unsigned, /* complain_on_overflow */
740
         bfd_elf_generic_reloc,/* special_function */
741
         "R_M32R_24_RELA",      /* name */
742
         FALSE,                 /* partial_inplace */
743
         0xffffff,              /* src_mask */
744
         0xffffff,              /* dst_mask */
745
         FALSE),                /* pcrel_offset */
746
 
747
  HOWTO (R_M32R_10_PCREL_RELA,  /* type */
748
         2,                     /* rightshift */
749
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
750
         10,                    /* bitsize */
751
         TRUE,                  /* pc_relative */
752
         0,                      /* bitpos */
753
         complain_overflow_signed, /* complain_on_overflow */
754
         m32r_elf_10_pcrel_reloc, /* special_function */
755
         "R_M32R_10_PCREL_RELA",/* name */
756
         FALSE,                 /* partial_inplace */
757
         0xff,                  /* src_mask */
758
         0xff,                  /* dst_mask */
759
         TRUE),                 /* pcrel_offset */
760
 
761
  /* A relative 18 bit relocation, right shifted by 2.  */
762
  HOWTO (R_M32R_18_PCREL_RELA,  /* type */
763
         2,                     /* rightshift */
764
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
765
         16,                    /* bitsize */
766
         TRUE,                  /* pc_relative */
767
         0,                      /* bitpos */
768
         complain_overflow_signed, /* complain_on_overflow */
769
         bfd_elf_generic_reloc, /* special_function */
770
         "R_M32R_18_PCREL_RELA",/* name */
771
         FALSE,                 /* partial_inplace */
772
         0xffff,                /* src_mask */
773
         0xffff,                /* dst_mask */
774
         TRUE),                 /* pcrel_offset */
775
 
776
  /* A relative 26 bit relocation, right shifted by 2.  */
777
  HOWTO (R_M32R_26_PCREL_RELA,  /* type */
778
         2,                     /* rightshift */
779
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
780
         26,                    /* bitsize */
781
         TRUE,                  /* pc_relative */
782
         0,                      /* bitpos */
783
         complain_overflow_signed, /* complain_on_overflow */
784
         bfd_elf_generic_reloc, /* special_function */
785
         "R_M32R_26_PCREL_RELA",/* name */
786
         FALSE,                 /* partial_inplace */
787
         0xffffff,              /* src_mask */
788
         0xffffff,              /* dst_mask */
789
         TRUE),                 /* pcrel_offset */
790
 
791
  /* High 16 bits of address when lower 16 is or'd in.  */
792
  HOWTO (R_M32R_HI16_ULO_RELA,  /* type */
793
         16,                    /* rightshift */
794
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
795
         16,                    /* bitsize */
796
         FALSE,                 /* pc_relative */
797
         0,                      /* bitpos */
798
         complain_overflow_dont, /* complain_on_overflow */
799
         bfd_elf_generic_reloc, /* special_function */
800
         "R_M32R_HI16_ULO_RELA",/* name */
801
         FALSE,                 /* partial_inplace */
802
         0x0000ffff,            /* src_mask */
803
         0x0000ffff,            /* dst_mask */
804
         FALSE),                /* pcrel_offset */
805
 
806
  /* High 16 bits of address when lower 16 is added in.  */
807
  HOWTO (R_M32R_HI16_SLO_RELA,  /* type */
808
         16,                    /* rightshift */
809
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
810
         16,                    /* bitsize */
811
         FALSE,                 /* pc_relative */
812
         0,                      /* bitpos */
813
         complain_overflow_dont, /* complain_on_overflow */
814
         bfd_elf_generic_reloc, /* special_function */
815
         "R_M32R_HI16_SLO_RELA",/* name */
816
         FALSE,                 /* partial_inplace */
817
         0x0000ffff,            /* src_mask */
818
         0x0000ffff,            /* dst_mask */
819
         FALSE),                /* pcrel_offset */
820
 
821
  /* Lower 16 bits of address.  */
822
  HOWTO (R_M32R_LO16_RELA,      /* type */
823
         0,                      /* rightshift */
824
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
825
         16,                    /* bitsize */
826
         FALSE,                 /* pc_relative */
827
         0,                      /* bitpos */
828
         complain_overflow_dont, /* complain_on_overflow */
829
         bfd_elf_generic_reloc, /* special_function */
830
         "R_M32R_LO16_RELA",    /* name */
831
         FALSE,                 /* partial_inplace */
832
         0x0000ffff,            /* src_mask */
833
         0x0000ffff,            /* dst_mask */
834
         FALSE),                /* pcrel_offset */
835
 
836
  /* Small data area 16 bits offset.  */
837
  HOWTO (R_M32R_SDA16_RELA,     /* type */
838
         0,                      /* rightshift */
839
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
840
         16,                    /* bitsize */
841
         FALSE,                 /* pc_relative */
842
         0,                      /* bitpos */
843
         complain_overflow_signed, /* complain_on_overflow */
844
         bfd_elf_generic_reloc, /* special_function */
845
         "R_M32R_SDA16_RELA",   /* name */
846
         TRUE,                  /* partial_inplace */  /* FIXME: correct? */
847
         0x0000ffff,            /* src_mask */
848
         0x0000ffff,            /* dst_mask */
849
         FALSE),                /* pcrel_offset */
850
 
851
  /* GNU extension to record C++ vtable hierarchy.  */
852
  HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
853
         0,                     /* rightshift */
854
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
855
         0,                     /* bitsize */
856
         FALSE,                 /* pc_relative */
857
         0,                     /* bitpos */
858
         complain_overflow_dont, /* complain_on_overflow */
859
         NULL,                  /* special_function */
860
         "R_M32R_RELA_GNU_VTINHERIT", /* name */
861
         FALSE,                 /* partial_inplace */
862
         0,                     /* src_mask */
863
         0,                     /* dst_mask */
864
         FALSE),                /* pcrel_offset */
865
 
866
  /* GNU extension to record C++ vtable member usage.  */
867
  HOWTO (R_M32R_RELA_GNU_VTENTRY,     /* type */
868
         0,                     /* rightshift */
869
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
870
         0,                     /* bitsize */
871
         FALSE,                 /* pc_relative */
872
         0,                     /* bitpos */
873
         complain_overflow_dont, /* complain_on_overflow */
874
         _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
875
         "R_M32R_RELA_GNU_VTENTRY",   /* name */
876
         FALSE,                 /* partial_inplace */
877
         0,                     /* src_mask */
878
         0,                     /* dst_mask */
879
         FALSE),                /* pcrel_offset */
880
 
881
  /* A 32 bit PC relative relocation.  */
882
  HOWTO (R_M32R_REL32,          /* type */
883
         0,                      /* rightshift */
884
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
885
         32,                    /* bitsize */
886
         TRUE,                  /* pc_relative */
887
         0,                      /* bitpos */
888
         complain_overflow_bitfield, /* complain_on_overflow */
889
         bfd_elf_generic_reloc,/* special_function */
890
         "R_M32R_REL32",                /* name */
891
         FALSE,                 /* partial_inplace */
892
         0xffffffff,            /* src_mask */
893
         0xffffffff,            /* dst_mask */
894
         TRUE),                 /* pcrel_offset */
895
 
896
  EMPTY_HOWTO (46),
897
  EMPTY_HOWTO (47),
898
 
899
  /* Like R_M32R_24, but referring to the GOT table entry for
900
     the symbol.  */
901
  HOWTO (R_M32R_GOT24,          /* type */
902
         0,                      /* rightshift */
903
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
904
         24,                    /* bitsize */
905
         FALSE,                 /* pc_relative */
906
         0,                      /* bitpos */
907
         complain_overflow_unsigned, /* complain_on_overflow */
908
         bfd_elf_generic_reloc, /* special_function */
909
         "R_M32R_GOT24",        /* name */
910
         FALSE,                 /* partial_inplace */
911
         0xffffff,              /* src_mask */
912
         0xffffff,              /* dst_mask */
913
         FALSE),                /* pcrel_offset */
914
 
915
  /* Like R_M32R_PCREL, but referring to the procedure linkage table
916
     entry for the symbol.  */
917
  HOWTO (R_M32R_26_PLTREL,      /* type */
918
         2,                     /* rightshift */
919
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
920
         24,                    /* bitsize */
921
         TRUE,                  /* pc_relative */
922
         0,                      /* bitpos */
923
         complain_overflow_signed, /* complain_on_overflow */
924
         bfd_elf_generic_reloc, /* special_function */
925
         "R_M32R_26_PLTREL",    /* name */
926
         FALSE,                 /* partial_inplace */
927
         0xffffff,              /* src_mask */
928
         0xffffff,              /* dst_mask */
929
         TRUE),                 /* pcrel_offset */
930
 
931
  /* This is used only by the dynamic linker.  The symbol should exist
932
     both in the object being run and in some shared library.  The
933
     dynamic linker copies the data addressed by the symbol from the
934
     shared library into the object, because the object being
935
     run has to have the data at some particular address.  */
936
  HOWTO (R_M32R_COPY,           /* type */
937
         0,                      /* rightshift */
938
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
939
         32,                    /* bitsize */
940
         FALSE,                 /* pc_relative */
941
         0,                      /* bitpos */
942
         complain_overflow_bitfield, /* complain_on_overflow */
943
         bfd_elf_generic_reloc, /* special_function */
944
         "R_M32R_COPY",         /* name */
945
         FALSE,                 /* partial_inplace */
946
         0xffffffff,            /* src_mask */
947
         0xffffffff,            /* dst_mask */
948
         FALSE),                /* pcrel_offset */
949
 
950
  /* Like R_M32R_24, but used when setting global offset table
951
     entries.  */
952
  HOWTO (R_M32R_GLOB_DAT,       /* type */
953
         0,                      /* rightshift */
954
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
955
         32,                    /* bitsize */
956
         FALSE,                 /* pc_relative */
957
         0,                      /* bitpos */
958
         complain_overflow_bitfield, /* complain_on_overflow */
959
         bfd_elf_generic_reloc, /* special_function */
960
         "R_M32R_GLOB_DAT",     /* name */
961
         FALSE,                 /* partial_inplace */
962
         0xffffffff,            /* src_mask */
963
         0xffffffff,            /* dst_mask */
964
         FALSE),                /* pcrel_offset */
965
 
966
  /* Marks a procedure linkage table entry for a symbol.  */
967
  HOWTO (R_M32R_JMP_SLOT,       /* type */
968
         0,                      /* rightshift */
969
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
970
         32,                    /* bitsize */
971
         FALSE,                 /* pc_relative */
972
         0,                      /* bitpos */
973
         complain_overflow_bitfield, /* complain_on_overflow */
974
         bfd_elf_generic_reloc, /* special_function */
975
         "R_M32R_JMP_SLOT",     /* name */
976
         FALSE,                 /* partial_inplace */
977
         0xffffffff,            /* src_mask */
978
         0xffffffff,            /* dst_mask */
979
         FALSE),                /* pcrel_offset */
980
 
981
  /* Used only by the dynamic linker.  When the object is run, this
982
     longword is set to the load address of the object, plus the
983
     addend.  */
984
  HOWTO (R_M32R_RELATIVE,       /* type */
985
         0,                      /* rightshift */
986
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
987
         32,                    /* bitsize */
988
         FALSE,                 /* pc_relative */
989
         0,                      /* bitpos */
990
         complain_overflow_bitfield, /* complain_on_overflow */
991
         bfd_elf_generic_reloc, /* special_function */
992
         "R_M32R_RELATIVE",     /* name */
993
         FALSE,                 /* partial_inplace */
994
         0xffffffff,            /* src_mask */
995
         0xffffffff,            /* dst_mask */
996
         FALSE),                /* pcrel_offset */
997
 
998
  HOWTO (R_M32R_GOTOFF,         /* type */
999
         0,                      /* rightshift */
1000
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1001
         24,                    /* bitsize */
1002
         FALSE,                 /* pc_relative */
1003
         0,                      /* bitpos */
1004
         complain_overflow_bitfield, /* complain_on_overflow */
1005
         bfd_elf_generic_reloc, /* special_function */
1006
         "R_M32R_GOTOFF",       /* name */
1007
         FALSE,                 /* partial_inplace */
1008
         0xffffff,              /* src_mask */
1009
         0xffffff,              /* dst_mask */
1010
         FALSE),                /* pcrel_offset */
1011
 
1012
  /* An PC Relative 24-bit relocation used when setting PIC offset
1013
     table register. */
1014
  HOWTO (R_M32R_GOTPC24,        /* type */
1015
         0,                      /* rightshift */
1016
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1017
         24,                    /* bitsize */
1018
         TRUE,                  /* pc_relative */
1019
         0,                      /* bitpos */
1020
         complain_overflow_unsigned, /* complain_on_overflow */
1021
         bfd_elf_generic_reloc, /* special_function */
1022
         "R_M32R_GOTPC24",      /* name */
1023
         FALSE,                 /* partial_inplace */
1024
         0xffffff,              /* src_mask */
1025
         0xffffff,              /* dst_mask */
1026
         TRUE),                 /* pcrel_offset */
1027
 
1028
  /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1029
     the symbol.  */
1030
  HOWTO (R_M32R_GOT16_HI_ULO,   /* type */
1031
         16,                    /* rightshift */
1032
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1033
         16,                    /* bitsize */
1034
         FALSE,                 /* pc_relative */
1035
         0,                      /* bitpos */
1036
         complain_overflow_dont, /* complain_on_overflow */
1037
         bfd_elf_generic_reloc, /* special_function */
1038
         "R_M32R_GOT16_HI_ULO", /* name */
1039
         FALSE,                 /* partial_inplace */
1040
         0x0000ffff,            /* src_mask */
1041
         0x0000ffff,            /* dst_mask */
1042
         FALSE),                /* pcrel_offset */
1043
 
1044
  /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1045
     the symbol.  */
1046
  HOWTO (R_M32R_GOT16_HI_SLO,   /* type */
1047
         16,                    /* rightshift */
1048
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1049
         16,                    /* bitsize */
1050
         FALSE,                 /* pc_relative */
1051
         0,                      /* bitpos */
1052
         complain_overflow_dont, /* complain_on_overflow */
1053
         bfd_elf_generic_reloc, /* special_function */
1054
         "R_M32R_GOT16_HI_SLO", /* name */
1055
         FALSE,                 /* partial_inplace */
1056
         0x0000ffff,            /* src_mask */
1057
         0x0000ffff,            /* dst_mask */
1058
         FALSE),                /* pcrel_offset */
1059
 
1060
  /* Like R_M32R_LO16, but referring to the GOT table entry for
1061
     the symbol.  */
1062
  HOWTO (R_M32R_GOT16_LO,       /* type */
1063
         0,                      /* rightshift */
1064
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1065
         16,                    /* bitsize */
1066
         FALSE,                 /* pc_relative */
1067
         0,                      /* bitpos */
1068
         complain_overflow_dont, /* complain_on_overflow */
1069
         bfd_elf_generic_reloc, /* special_function */
1070
         "R_M32R_GOT16_LO",     /* name */
1071
         FALSE,                 /* partial_inplace */
1072
         0x0000ffff,            /* src_mask */
1073
         0x0000ffff,            /* dst_mask */
1074
         FALSE),                /* pcrel_offset */
1075
 
1076
  /* An PC Relative relocation used when setting PIC offset table register.
1077
     Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1078
     the symbol.  */
1079
  HOWTO (R_M32R_GOTPC_HI_ULO,   /* type */
1080
         16,                    /* rightshift */
1081
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1082
         16,                    /* bitsize */
1083
         FALSE,                 /* pc_relative */
1084
         0,                      /* bitpos */
1085
         complain_overflow_dont, /* complain_on_overflow */
1086
         bfd_elf_generic_reloc, /* special_function */
1087
         "R_M32R_GOTPC_HI_ULO", /* name */
1088
         FALSE,                 /* partial_inplace */
1089
         0x0000ffff,            /* src_mask */
1090
         0x0000ffff,            /* dst_mask */
1091
         TRUE),                 /* pcrel_offset */
1092
 
1093
  /* An PC Relative relocation used when setting PIC offset table register.
1094
     Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1095
     the symbol.  */
1096
  HOWTO (R_M32R_GOTPC_HI_SLO,   /* type */
1097
         16,                    /* rightshift */
1098
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1099
         16,                    /* bitsize */
1100
         FALSE,                 /* pc_relative */
1101
         0,                      /* bitpos */
1102
         complain_overflow_dont, /* complain_on_overflow */
1103
         bfd_elf_generic_reloc, /* special_function */
1104
         "R_M32R_GOTPC_HI_SLO", /* name */
1105
         FALSE,                 /* partial_inplace */
1106
         0x0000ffff,            /* src_mask */
1107
         0x0000ffff,            /* dst_mask */
1108
         TRUE),                 /* pcrel_offset */
1109
 
1110
  /* An PC Relative relocation used when setting PIC offset table register.
1111
     Like R_M32R_LO16, but referring to the GOT table entry for
1112
     the symbol.  */
1113
  HOWTO (R_M32R_GOTPC_LO,       /* type */
1114
         0,                      /* rightshift */
1115
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1116
         16,                    /* bitsize */
1117
         FALSE,                 /* pc_relative */
1118
         0,                      /* bitpos */
1119
         complain_overflow_dont, /* complain_on_overflow */
1120
         bfd_elf_generic_reloc, /* special_function */
1121
         "R_M32R_GOTPC_LO",     /* name */
1122
         FALSE,                 /* partial_inplace */
1123
         0x0000ffff,            /* src_mask */
1124
         0x0000ffff,            /* dst_mask */
1125
         TRUE),                 /* pcrel_offset */
1126
 
1127
  HOWTO (R_M32R_GOTOFF_HI_ULO,  /* type */
1128
         16,                    /* rightshift */
1129
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1130
         16,                    /* bitsize */
1131
         FALSE,                 /* pc_relative */
1132
         0,                      /* bitpos */
1133
         complain_overflow_dont, /* complain_on_overflow */
1134
         bfd_elf_generic_reloc, /* special_function */
1135
         "R_M32R_GOTOFF_HI_ULO",/* name */
1136
         FALSE,                 /* partial_inplace */
1137
         0x0000ffff,            /* src_mask */
1138
         0x0000ffff,            /* dst_mask */
1139
         FALSE),                /* pcrel_offset */
1140
 
1141
  HOWTO (R_M32R_GOTOFF_HI_SLO,  /* type */
1142
         16,                    /* rightshift */
1143
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1144
         16,                    /* bitsize */
1145
         FALSE,                 /* pc_relative */
1146
         0,                      /* bitpos */
1147
         complain_overflow_dont, /* complain_on_overflow */
1148
         bfd_elf_generic_reloc, /* special_function */
1149
         "R_M32R_GOTOFF_HI_SLO",/* name */
1150
         FALSE,                 /* partial_inplace */
1151
         0x0000ffff,            /* src_mask */
1152
         0x0000ffff,            /* dst_mask */
1153
         FALSE),                /* pcrel_offset */
1154
 
1155
  HOWTO (R_M32R_GOTOFF_LO,      /* type */
1156
         0,                      /* rightshift */
1157
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
1158
         16,                    /* bitsize */
1159
         FALSE,                 /* pc_relative */
1160
         0,                      /* bitpos */
1161
         complain_overflow_dont, /* complain_on_overflow */
1162
         bfd_elf_generic_reloc, /* special_function */
1163
         "R_M32R_GOTOFF_LO",    /* name */
1164
         FALSE,                 /* partial_inplace */
1165
         0x0000ffff,            /* src_mask */
1166
         0x0000ffff,            /* dst_mask */
1167
         FALSE),                /* pcrel_offset */
1168
};
1169
 
1170
/* Map BFD reloc types to M32R ELF reloc types.  */
1171
 
1172
struct m32r_reloc_map
1173
{
1174
  bfd_reloc_code_real_type bfd_reloc_val;
1175
  unsigned char elf_reloc_val;
1176
};
1177
 
1178
#ifdef USE_M32R_OLD_RELOC
1179
static const struct m32r_reloc_map m32r_reloc_map_old[] =
1180
{
1181
  { BFD_RELOC_NONE, R_M32R_NONE },
1182
  { BFD_RELOC_16, R_M32R_16 },
1183
  { BFD_RELOC_32, R_M32R_32 },
1184
  { BFD_RELOC_M32R_24, R_M32R_24 },
1185
  { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1186
  { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1187
  { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1188
  { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1189
  { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1190
  { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1191
  { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1192
  { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1193
  { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1194
};
1195
#else
1196
static const struct m32r_reloc_map m32r_reloc_map[] =
1197
{
1198
  { BFD_RELOC_NONE, R_M32R_NONE },
1199
  { BFD_RELOC_16, R_M32R_16_RELA },
1200
  { BFD_RELOC_32, R_M32R_32_RELA },
1201
  { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1202
  { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1203
  { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1204
  { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1205
  { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1206
  { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1207
  { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1208
  { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1209
  { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1210
  { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1211
  { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1212
 
1213
  { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1214
  { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1215
  { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1216
  { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1217
  { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1218
  { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1219
  { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1220
  { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1221
  { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1222
  { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1223
  { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1224
  { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1225
  { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1226
  { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1227
  { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1228
  { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1229
  { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1230
};
1231
#endif
1232
 
1233
static reloc_howto_type *
1234
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1235
                                 bfd_reloc_code_real_type code)
1236
{
1237
  unsigned int i;
1238
 
1239
#ifdef USE_M32R_OLD_RELOC
1240
  for (i = 0;
1241
       i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1242
       i++)
1243
    if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1244
      return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1245
 
1246
#else /* ! USE_M32R_OLD_RELOC */
1247
 
1248
  for (i = 0;
1249
       i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1250
       i++)
1251
    if (m32r_reloc_map[i].bfd_reloc_val == code)
1252
      return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1253
#endif
1254
 
1255
  return NULL;
1256
}
1257
 
1258
static reloc_howto_type *
1259
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1260
                                 const char *r_name)
1261
{
1262
  unsigned int i;
1263
 
1264
  for (i = 0;
1265
       i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1266
       i++)
1267
    if (m32r_elf_howto_table[i].name != NULL
1268
        && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1269
      return &m32r_elf_howto_table[i];
1270
 
1271
  return NULL;
1272
}
1273
 
1274
/* Set the howto pointer for an M32R ELF reloc.  */
1275
 
1276
static void
1277
m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1278
                        arelent *cache_ptr,
1279
                        Elf_Internal_Rela *dst)
1280
{
1281
  unsigned int r_type;
1282
 
1283
  r_type = ELF32_R_TYPE (dst->r_info);
1284
  BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
1285
  cache_ptr->howto = &m32r_elf_howto_table[r_type];
1286
}
1287
 
1288
static void
1289
m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1290
                    arelent *cache_ptr,
1291
                    Elf_Internal_Rela *dst)
1292
{
1293
  BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1294
              || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1295
                  && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1296
  cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1297
}
1298
 
1299
 
1300
/* Given a BFD section, try to locate the corresponding ELF section
1301
   index.  */
1302
 
1303
static bfd_boolean
1304
_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1305
                                        asection *sec,
1306
                                        int *retval)
1307
{
1308
  if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1309
    {
1310
      *retval = SHN_M32R_SCOMMON;
1311
      return TRUE;
1312
    }
1313
  return FALSE;
1314
}
1315
 
1316
/* M32R ELF uses two common sections.  One is the usual one, and the other
1317
   is for small objects.  All the small objects are kept together, and then
1318
   referenced via one register, which yields faster assembler code.  It is
1319
   up to the compiler to emit an instruction to load the register with
1320
   _SDA_BASE.  This is what we use for the small common section.  This
1321
   approach is copied from elf32-mips.c.  */
1322
static asection m32r_elf_scom_section;
1323
static asymbol m32r_elf_scom_symbol;
1324
static asymbol *m32r_elf_scom_symbol_ptr;
1325
 
1326
/* Handle the special M32R section numbers that a symbol may use.  */
1327
 
1328
static void
1329
_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1330
{
1331
  elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1332
 
1333
  switch (elfsym->internal_elf_sym.st_shndx)
1334
    {
1335
    case SHN_M32R_SCOMMON:
1336
      if (m32r_elf_scom_section.name == NULL)
1337
        {
1338
          /* Initialize the small common section.  */
1339
          m32r_elf_scom_section.name = ".scommon";
1340
          m32r_elf_scom_section.flags = SEC_IS_COMMON;
1341
          m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1342
          m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1343
          m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1344
          m32r_elf_scom_symbol.name = ".scommon";
1345
          m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1346
          m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1347
          m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1348
        }
1349
      asym->section = &m32r_elf_scom_section;
1350
      asym->value = elfsym->internal_elf_sym.st_size;
1351
      break;
1352
    }
1353
}
1354
 
1355
/* Hook called by the linker routine which adds symbols from an object
1356
   file.  We must handle the special M32R section numbers here.
1357
   We also keep watching for whether we need to create the sdata special
1358
   linker sections.  */
1359
 
1360
static bfd_boolean
1361
m32r_elf_add_symbol_hook (bfd *abfd,
1362
                          struct bfd_link_info *info,
1363
                          Elf_Internal_Sym *sym,
1364
                          const char **namep,
1365
                          flagword *flagsp ATTRIBUTE_UNUSED,
1366
                          asection **secp,
1367
                          bfd_vma *valp)
1368
{
1369
  if (! info->relocatable
1370
      && (*namep)[0] == '_' && (*namep)[1] == 'S'
1371
      && strcmp (*namep, "_SDA_BASE_") == 0
1372
      && is_elf_hash_table (info->hash))
1373
    {
1374
      /* This is simpler than using _bfd_elf_create_linker_section
1375
         (our needs are simpler than ppc's needs).  Also
1376
         _bfd_elf_create_linker_section currently has a bug where if a .sdata
1377
         section already exists a new one is created that follows it which
1378
         screws of _SDA_BASE_ address calcs because output_offset != 0.  */
1379
      struct elf_link_hash_entry *h;
1380
      struct bfd_link_hash_entry *bh;
1381
      asection *s = bfd_get_section_by_name (abfd, ".sdata");
1382
 
1383
      /* The following code was cobbled from elf32-ppc.c and elflink.c.  */
1384
      if (s == NULL)
1385
        {
1386
          flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1387
                            | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1388
 
1389
          s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1390
                                                  flags);
1391
          if (s == NULL)
1392
            return FALSE;
1393
          bfd_set_section_alignment (abfd, s, 2);
1394
        }
1395
 
1396
      bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1397
                                 FALSE, FALSE, FALSE);
1398
 
1399
      if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1400
          && !(_bfd_generic_link_add_one_symbol (info,
1401
                                                 abfd,
1402
                                                 "_SDA_BASE_",
1403
                                                 BSF_GLOBAL,
1404
                                                 s,
1405
                                                 (bfd_vma) 32768,
1406
                                                 NULL,
1407
                                                 FALSE,
1408
                                                 get_elf_backend_data (abfd)->collect,
1409
                                                 &bh)))
1410
        return FALSE;
1411
      h = (struct elf_link_hash_entry *) bh;
1412
      h->type = STT_OBJECT;
1413
    }
1414
 
1415
  switch (sym->st_shndx)
1416
    {
1417
    case SHN_M32R_SCOMMON:
1418
      *secp = bfd_make_section_old_way (abfd, ".scommon");
1419
      (*secp)->flags |= SEC_IS_COMMON;
1420
      *valp = sym->st_size;
1421
      break;
1422
    }
1423
 
1424
  return TRUE;
1425
}
1426
 
1427
/* We have to figure out the SDA_BASE value, so that we can adjust the
1428
   symbol value correctly.  We look up the symbol _SDA_BASE_ in the output
1429
   BFD.  If we can't find it, we're stuck.  We cache it in the ELF
1430
   target data.  We don't need to adjust the symbol value for an
1431
   external symbol if we are producing relocatable output.  */
1432
 
1433
static bfd_reloc_status_type
1434
m32r_elf_final_sda_base (bfd *output_bfd,
1435
                         struct bfd_link_info *info,
1436
                         const char **error_message,
1437
                         bfd_vma *psb)
1438
{
1439
  if (elf_gp (output_bfd) == 0)
1440
    {
1441
      struct bfd_link_hash_entry *h;
1442
 
1443
      h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1444
      if (h != NULL && h->type == bfd_link_hash_defined)
1445
        elf_gp (output_bfd) = (h->u.def.value
1446
                               + h->u.def.section->output_section->vma
1447
                               + h->u.def.section->output_offset);
1448
      else
1449
        {
1450
          /* Only get the error once.  */
1451
          *psb = elf_gp (output_bfd) = 4;
1452
          *error_message =
1453
            (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1454
          return bfd_reloc_dangerous;
1455
        }
1456
    }
1457
  *psb = elf_gp (output_bfd);
1458
  return bfd_reloc_ok;
1459
}
1460
 
1461
/* Return size of a PLT entry.  */
1462
#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1463
 
1464
/* The m32r linker needs to keep track of the number of relocs that it
1465
   decides to copy in check_relocs for each symbol.  This is so that
1466
   it can discard PC relative relocs if it doesn't need them when
1467
   linking with -Bsymbolic.  We store the information in a field
1468
   extending the regular ELF linker hash table.  */
1469
 
1470
/* This structure keeps track of the number of PC relative relocs we
1471
   have copied for a given symbol.  */
1472
 
1473
struct elf_m32r_pcrel_relocs_copied
1474
{
1475
  /* Next section.  */
1476
  struct elf_m32r_pcrel_relocs_copied *next;
1477
  /* A section in dynobj.  */
1478
  asection *section;
1479
  /* Number of relocs copied in this section.  */
1480
  bfd_size_type count;
1481
};
1482
 
1483
/* The sh linker needs to keep track of the number of relocs that it
1484
   decides to copy as dynamic relocs in check_relocs for each symbol.
1485
   This is so that it can later discard them if they are found to be
1486
   unnecessary.  We store the information in a field extending the
1487
   regular ELF linker hash table.  */
1488
 
1489
struct elf_m32r_dyn_relocs
1490
{
1491
  struct elf_m32r_dyn_relocs *next;
1492
 
1493
  /* The input section of the reloc.  */
1494
  asection *sec;
1495
 
1496
  /* Total number of relocs copied for the input section.  */
1497
  bfd_size_type count;
1498
 
1499
  /* Number of pc-relative relocs copied for the input section.  */
1500
  bfd_size_type pc_count;
1501
};
1502
 
1503
 
1504
/* m32r ELF linker hash entry.  */
1505
 
1506
struct elf_m32r_link_hash_entry
1507
{
1508
  struct elf_link_hash_entry root;
1509
 
1510
  /* Track dynamic relocs copied for this symbol.  */
1511
  struct elf_m32r_dyn_relocs *dyn_relocs;
1512
};
1513
 
1514
/* m32r ELF linker hash table.  */
1515
 
1516
struct elf_m32r_link_hash_table
1517
{
1518
  struct elf_link_hash_table root;
1519
 
1520
  /* Short-cuts to get to dynamic linker sections.  */
1521
  asection *sgot;
1522
  asection *sgotplt;
1523
  asection *srelgot;
1524
  asection *splt;
1525
  asection *srelplt;
1526
  asection *sdynbss;
1527
  asection *srelbss;
1528
 
1529
  /* Small local sym cache.  */
1530
  struct sym_cache sym_cache;
1531
};
1532
 
1533
/* Traverse an m32r ELF linker hash table.  */
1534
 
1535
#define m32r_elf_link_hash_traverse(table, func, info)                  \
1536
  (elf_link_hash_traverse                                               \
1537
   (&(table)->root,                                                     \
1538
    (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func),    \
1539
    (info)))
1540
 
1541
/* Get the m32r ELF linker hash table from a link_info structure.  */
1542
 
1543
#define m32r_elf_hash_table(p) \
1544
  (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545
  == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1546
 
1547
/* Create an entry in an m32r ELF linker hash table.  */
1548
 
1549
static struct bfd_hash_entry *
1550
m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1551
                            struct bfd_hash_table *table,
1552
                            const char *string)
1553
{
1554
  struct elf_m32r_link_hash_entry *ret =
1555
    (struct elf_m32r_link_hash_entry *) entry;
1556
 
1557
  /* Allocate the structure if it has not already been allocated by a
1558
     subclass.  */
1559
  if (ret == NULL)
1560
    ret = bfd_hash_allocate (table,
1561
                             sizeof (struct elf_m32r_link_hash_entry));
1562
  if (ret == NULL)
1563
    return NULL;
1564
 
1565
  /* Call the allocation method of the superclass.  */
1566
  ret = ((struct elf_m32r_link_hash_entry *)
1567
         _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1568
                                     table, string));
1569
  if (ret != NULL)
1570
    {
1571
      struct elf_m32r_link_hash_entry *eh;
1572
 
1573
      eh = (struct elf_m32r_link_hash_entry *) ret;
1574
      eh->dyn_relocs = NULL;
1575
    }
1576
 
1577
  return (struct bfd_hash_entry *) ret;
1578
}
1579
 
1580
/* Create an m32r ELF linker hash table.  */
1581
 
1582
static struct bfd_link_hash_table *
1583
m32r_elf_link_hash_table_create (bfd *abfd)
1584
{
1585
  struct elf_m32r_link_hash_table *ret;
1586
  bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1587
 
1588
  ret = bfd_malloc (amt);
1589
  if (ret == NULL)
1590
    return NULL;
1591
 
1592
  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1593
                                      m32r_elf_link_hash_newfunc,
1594
                                      sizeof (struct elf_m32r_link_hash_entry),
1595
                                      M32R_ELF_DATA))
1596
    {
1597
      free (ret);
1598
      return NULL;
1599
    }
1600
 
1601
  ret->sgot = NULL;
1602
  ret->sgotplt = NULL;
1603
  ret->srelgot = NULL;
1604
  ret->splt = NULL;
1605
  ret->srelplt = NULL;
1606
  ret->sdynbss = NULL;
1607
  ret->srelbss = NULL;
1608
  ret->sym_cache.abfd = NULL;
1609
 
1610
  return &ret->root.root;
1611
}
1612
 
1613
/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1614
   shortcuts to them in our hash table.  */
1615
 
1616
static bfd_boolean
1617
create_got_section (bfd *dynobj, struct bfd_link_info *info)
1618
{
1619
  struct elf_m32r_link_hash_table *htab;
1620
 
1621
  if (! _bfd_elf_create_got_section (dynobj, info))
1622
    return FALSE;
1623
 
1624
  htab = m32r_elf_hash_table (info);
1625
  if (htab == NULL)
1626
    return FALSE;
1627
 
1628
  htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1629
  htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1630
  htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1631
  if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1632
    abort ();
1633
 
1634
  return TRUE;
1635
}
1636
 
1637
/* Create dynamic sections when linking against a dynamic object.  */
1638
 
1639
static bfd_boolean
1640
m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1641
{
1642
  struct elf_m32r_link_hash_table *htab;
1643
  flagword flags, pltflags;
1644
  asection *s;
1645
  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1646
  int ptralign = 2; /* 32bit */
1647
 
1648
  htab = m32r_elf_hash_table (info);
1649
  if (htab == NULL)
1650
    return FALSE;
1651
 
1652
  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1653
     .rel[a].bss sections.  */
1654
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1655
           | SEC_LINKER_CREATED);
1656
 
1657
  pltflags = flags;
1658
  pltflags |= SEC_CODE;
1659
  if (bed->plt_not_loaded)
1660
    pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1661
  if (bed->plt_readonly)
1662
    pltflags |= SEC_READONLY;
1663
 
1664
  s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
1665
  htab->splt = s;
1666
  if (s == NULL
1667
      || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1668
    return FALSE;
1669
 
1670
  if (bed->want_plt_sym)
1671
    {
1672
      /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1673
         .plt section.  */
1674
      struct bfd_link_hash_entry *bh = NULL;
1675
      struct elf_link_hash_entry *h;
1676
 
1677
      if (! (_bfd_generic_link_add_one_symbol
1678
             (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1679
              (bfd_vma) 0, NULL, FALSE,
1680
              get_elf_backend_data (abfd)->collect, &bh)))
1681
        return FALSE;
1682
      h = (struct elf_link_hash_entry *) bh;
1683
      h->def_regular = 1;
1684
      h->type = STT_OBJECT;
1685
      htab->root.hplt = h;
1686
 
1687
      if (info->shared
1688
          && ! bfd_elf_link_record_dynamic_symbol (info, h))
1689
        return FALSE;
1690
    }
1691
 
1692
  s = bfd_make_section_with_flags (abfd,
1693
                                   bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1694
                                   flags | SEC_READONLY);
1695
  htab->srelplt = s;
1696
  if (s == NULL
1697
      || ! bfd_set_section_alignment (abfd, s, ptralign))
1698
    return FALSE;
1699
 
1700
  if (htab->sgot == NULL
1701
      && ! create_got_section (abfd, info))
1702
    return FALSE;
1703
 
1704
  {
1705
    const char *secname;
1706
    char *relname;
1707
    flagword secflags;
1708
    asection *sec;
1709
 
1710
    for (sec = abfd->sections; sec; sec = sec->next)
1711
      {
1712
        secflags = bfd_get_section_flags (abfd, sec);
1713
        if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1714
            || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1715
          continue;
1716
        secname = bfd_get_section_name (abfd, sec);
1717
        relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
1718
        strcpy (relname, ".rela");
1719
        strcat (relname, secname);
1720
        if (bfd_get_section_by_name (abfd, secname))
1721
          continue;
1722
        s = bfd_make_section_with_flags (abfd, relname,
1723
                                         flags | SEC_READONLY);
1724
        if (s == NULL
1725
            || ! bfd_set_section_alignment (abfd, s, ptralign))
1726
          return FALSE;
1727
      }
1728
  }
1729
 
1730
  if (bed->want_dynbss)
1731
    {
1732
      /* The .dynbss section is a place to put symbols which are defined
1733
         by dynamic objects, are referenced by regular objects, and are
1734
         not functions.  We must allocate space for them in the process
1735
         image and use a R_*_COPY reloc to tell the dynamic linker to
1736
         initialize them at run time.  The linker script puts the .dynbss
1737
         section into the .bss section of the final image.  */
1738
      s = bfd_make_section_with_flags (abfd, ".dynbss",
1739
                                       SEC_ALLOC | SEC_LINKER_CREATED);
1740
      htab->sdynbss = s;
1741
      if (s == NULL)
1742
        return FALSE;
1743
      /* The .rel[a].bss section holds copy relocs.  This section is not
1744
         normally needed.  We need to create it here, though, so that the
1745
         linker will map it to an output section.  We can't just create it
1746
         only if we need it, because we will not know whether we need it
1747
         until we have seen all the input files, and the first time the
1748
         main linker code calls BFD after examining all the input files
1749
         (size_dynamic_sections) the input sections have already been
1750
         mapped to the output sections.  If the section turns out not to
1751
         be needed, we can discard it later.  We will never need this
1752
         section when generating a shared object, since they do not use
1753
         copy relocs.  */
1754
      if (! info->shared)
1755
        {
1756
          s = bfd_make_section_with_flags (abfd,
1757
                                           (bed->default_use_rela_p
1758
                                            ? ".rela.bss" : ".rel.bss"),
1759
                                           flags | SEC_READONLY);
1760
          htab->srelbss = s;
1761
          if (s == NULL
1762
              || ! bfd_set_section_alignment (abfd, s, ptralign))
1763
            return FALSE;
1764
        }
1765
    }
1766
 
1767
  return TRUE;
1768
}
1769
 
1770
/* Copy the extra info we tack onto an elf_link_hash_entry.  */
1771
 
1772
static void
1773
m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1774
                               struct elf_link_hash_entry *dir,
1775
                               struct elf_link_hash_entry *ind)
1776
{
1777
  struct elf_m32r_link_hash_entry * edir;
1778
  struct elf_m32r_link_hash_entry * eind;
1779
 
1780
  edir = (struct elf_m32r_link_hash_entry *) dir;
1781
  eind = (struct elf_m32r_link_hash_entry *) ind;
1782
 
1783
  if (eind->dyn_relocs != NULL)
1784
    {
1785
      if (edir->dyn_relocs != NULL)
1786
        {
1787
          struct elf_m32r_dyn_relocs **pp;
1788
          struct elf_m32r_dyn_relocs *p;
1789
 
1790
          /* Add reloc counts against the indirect sym to the direct sym
1791
             list.  Merge any entries against the same section.  */
1792
          for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1793
            {
1794
              struct elf_m32r_dyn_relocs *q;
1795
 
1796
              for (q = edir->dyn_relocs; q != NULL; q = q->next)
1797
                if (q->sec == p->sec)
1798
                  {
1799
                    q->pc_count += p->pc_count;
1800
                    q->count += p->count;
1801
                    *pp = p->next;
1802
                    break;
1803
                  }
1804
              if (q == NULL)
1805
                pp = &p->next;
1806
            }
1807
          *pp = edir->dyn_relocs;
1808
        }
1809
 
1810
      edir->dyn_relocs = eind->dyn_relocs;
1811
      eind->dyn_relocs = NULL;
1812
    }
1813
 
1814
  _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1815
}
1816
 
1817
 
1818
/* Adjust a symbol defined by a dynamic object and referenced by a
1819
   regular object.  The current definition is in some section of the
1820
   dynamic object, but we're not including those sections.  We have to
1821
   change the definition to something the rest of the link can
1822
   understand.  */
1823
 
1824
static bfd_boolean
1825
m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1826
                                struct elf_link_hash_entry *h)
1827
{
1828
  struct elf_m32r_link_hash_table *htab;
1829
  struct elf_m32r_link_hash_entry *eh;
1830
  struct elf_m32r_dyn_relocs *p;
1831
  bfd *dynobj;
1832
  asection *s;
1833
 
1834
#ifdef DEBUG_PIC
1835
  printf ("m32r_elf_adjust_dynamic_symbol()\n");
1836
#endif
1837
 
1838
  dynobj = elf_hash_table (info)->dynobj;
1839
 
1840
  /* Make sure we know what is going on here.  */
1841
  BFD_ASSERT (dynobj != NULL
1842
              && (h->needs_plt
1843
                  || h->u.weakdef != NULL
1844
                  || (h->def_dynamic
1845
                      && h->ref_regular
1846
                      && !h->def_regular)));
1847
 
1848
  /* If this is a function, put it in the procedure linkage table.  We
1849
     will fill in the contents of the procedure linkage table later,
1850
     when we know the address of the .got section.  */
1851
  if (h->type == STT_FUNC
1852
      || h->needs_plt)
1853
    {
1854
      if (! info->shared
1855
          && !h->def_dynamic
1856
          && !h->ref_dynamic
1857
          && h->root.type != bfd_link_hash_undefweak
1858
          && h->root.type != bfd_link_hash_undefined)
1859
        {
1860
          /* This case can occur if we saw a PLT reloc in an input
1861
             file, but the symbol was never referred to by a dynamic
1862
             object.  In such a case, we don't actually need to build
1863
             a procedure linkage table, and we can just do a PCREL
1864
             reloc instead.  */
1865
          h->plt.offset = (bfd_vma) -1;
1866
          h->needs_plt = 0;
1867
        }
1868
 
1869
      return TRUE;
1870
    }
1871
  else
1872
    h->plt.offset = (bfd_vma) -1;
1873
 
1874
  /* If this is a weak symbol, and there is a real definition, the
1875
     processor independent code will have arranged for us to see the
1876
     real definition first, and we can just use the same value.  */
1877
  if (h->u.weakdef != NULL)
1878
    {
1879
      BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1880
                  || h->u.weakdef->root.type == bfd_link_hash_defweak);
1881
      h->root.u.def.section = h->u.weakdef->root.u.def.section;
1882
      h->root.u.def.value = h->u.weakdef->root.u.def.value;
1883
      return TRUE;
1884
    }
1885
 
1886
  /* This is a reference to a symbol defined by a dynamic object which
1887
     is not a function.  */
1888
 
1889
  /* If we are creating a shared library, we must presume that the
1890
     only references to the symbol are via the global offset table.
1891
     For such cases we need not do anything here; the relocations will
1892
     be handled correctly by relocate_section.  */
1893
  if (info->shared)
1894
    return TRUE;
1895
 
1896
  /* If there are no references to this symbol that do not use the
1897
     GOT, we don't need to generate a copy reloc.  */
1898
  if (!h->non_got_ref)
1899
    return TRUE;
1900
 
1901
  /* If -z nocopyreloc was given, we won't generate them either.  */
1902
  if (info->nocopyreloc)
1903
    {
1904
      h->non_got_ref = 0;
1905
      return TRUE;
1906
    }
1907
 
1908
  eh = (struct elf_m32r_link_hash_entry *) h;
1909
  for (p = eh->dyn_relocs; p != NULL; p = p->next)
1910
    {
1911
      s = p->sec->output_section;
1912
      if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1913
        break;
1914
    }
1915
 
1916
  /* If we didn't find any dynamic relocs in sections which needs the
1917
     copy reloc, then we'll be keeping the dynamic relocs and avoiding
1918
     the copy reloc.  */
1919
  if (p == NULL)
1920
    {
1921
      h->non_got_ref = 0;
1922
      return TRUE;
1923
    }
1924
 
1925
  if (h->size == 0)
1926
    {
1927
      (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1928
                             h->root.root.string);
1929
      return TRUE;
1930
    }
1931
 
1932
  /* We must allocate the symbol in our .dynbss section, which will
1933
     become part of the .bss section of the executable.  There will be
1934
     an entry for this symbol in the .dynsym section.  The dynamic
1935
     object will contain position independent code, so all references
1936
     from the dynamic object to this symbol will go through the global
1937
     offset table.  The dynamic linker will use the .dynsym entry to
1938
     determine the address it must put in the global offset table, so
1939
     both the dynamic object and the regular object will refer to the
1940
     same memory location for the variable.  */
1941
 
1942
  htab = m32r_elf_hash_table (info);
1943
  if (htab == NULL)
1944
    return FALSE;
1945
 
1946
  s = htab->sdynbss;
1947
  BFD_ASSERT (s != NULL);
1948
 
1949
  /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1950
     to copy the initial value out of the dynamic object and into the
1951
     runtime process image.  We need to remember the offset into the
1952
     .rela.bss section we are going to use.  */
1953
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1954
    {
1955
      asection *srel;
1956
 
1957
      srel = htab->srelbss;
1958
      BFD_ASSERT (srel != NULL);
1959
      srel->size += sizeof (Elf32_External_Rela);
1960
      h->needs_copy = 1;
1961
    }
1962
 
1963
  return _bfd_elf_adjust_dynamic_copy (h, s);
1964
}
1965
 
1966
/* Allocate space in .plt, .got and associated reloc sections for
1967
   dynamic relocs.  */
1968
 
1969
static bfd_boolean
1970
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1971
{
1972
  struct bfd_link_info *info;
1973
  struct elf_m32r_link_hash_table *htab;
1974
  struct elf_m32r_link_hash_entry *eh;
1975
  struct elf_m32r_dyn_relocs *p;
1976
 
1977
  if (h->root.type == bfd_link_hash_indirect)
1978
    return TRUE;
1979
 
1980
  info = (struct bfd_link_info *) inf;
1981
  htab = m32r_elf_hash_table (info);
1982
  if (htab == NULL)
1983
    return FALSE;
1984
 
1985
  eh = (struct elf_m32r_link_hash_entry *) h;
1986
 
1987
  if (htab->root.dynamic_sections_created
1988
      && h->plt.refcount > 0)
1989
    {
1990
      /* Make sure this symbol is output as a dynamic symbol.
1991
         Undefined weak syms won't yet be marked as dynamic.  */
1992
      if (h->dynindx == -1
1993
          && !h->forced_local)
1994
        {
1995
          if (! bfd_elf_link_record_dynamic_symbol (info, h))
1996
            return FALSE;
1997
        }
1998
 
1999
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2000
        {
2001
          asection *s = htab->splt;
2002
 
2003
          /* If this is the first .plt entry, make room for the special
2004
             first entry.  */
2005
          if (s->size == 0)
2006
            s->size += PLT_ENTRY_SIZE;
2007
 
2008
          h->plt.offset = s->size;
2009
 
2010
          /* If this symbol is not defined in a regular file, and we are
2011
             not generating a shared library, then set the symbol to this
2012
             location in the .plt.  This is required to make function
2013
             pointers compare as equal between the normal executable and
2014
             the shared library.  */
2015
          if (! info->shared
2016
              && !h->def_regular)
2017
            {
2018
              h->root.u.def.section = s;
2019
              h->root.u.def.value = h->plt.offset;
2020
            }
2021
 
2022
          /* Make room for this entry.  */
2023
          s->size += PLT_ENTRY_SIZE;
2024
 
2025
          /* We also need to make an entry in the .got.plt section, which
2026
             will be placed in the .got section by the linker script.  */
2027
          htab->sgotplt->size += 4;
2028
 
2029
          /* We also need to make an entry in the .rel.plt section.  */
2030
          htab->srelplt->size += sizeof (Elf32_External_Rela);
2031
        }
2032
      else
2033
        {
2034
          h->plt.offset = (bfd_vma) -1;
2035
          h->needs_plt = 0;
2036
        }
2037
    }
2038
  else
2039
    {
2040
      h->plt.offset = (bfd_vma) -1;
2041
      h->needs_plt = 0;
2042
    }
2043
 
2044
  if (h->got.refcount > 0)
2045
    {
2046
      asection *s;
2047
      bfd_boolean dyn;
2048
 
2049
      /* Make sure this symbol is output as a dynamic symbol.
2050
         Undefined weak syms won't yet be marked as dynamic.  */
2051
      if (h->dynindx == -1
2052
          && !h->forced_local)
2053
        {
2054
          if (! bfd_elf_link_record_dynamic_symbol (info, h))
2055
            return FALSE;
2056
        }
2057
 
2058
      s = htab->sgot;
2059
 
2060
      h->got.offset = s->size;
2061
      s->size += 4;
2062
      dyn = htab->root.dynamic_sections_created;
2063
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2064
        htab->srelgot->size += sizeof (Elf32_External_Rela);
2065
    }
2066
  else
2067
    h->got.offset = (bfd_vma) -1;
2068
 
2069
  if (eh->dyn_relocs == NULL)
2070
    return TRUE;
2071
 
2072
  /* In the shared -Bsymbolic case, discard space allocated for
2073
     dynamic pc-relative relocs against symbols which turn out to be
2074
     defined in regular objects.  For the normal shared case, discard
2075
     space for pc-relative relocs that have become local due to symbol
2076
     visibility changes.  */
2077
 
2078
  if (info->shared)
2079
    {
2080
      if (h->def_regular
2081
          && (h->forced_local
2082
              || info->symbolic))
2083
        {
2084
          struct elf_m32r_dyn_relocs **pp;
2085
 
2086
          for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2087
            {
2088
              p->count -= p->pc_count;
2089
              p->pc_count = 0;
2090
              if (p->count == 0)
2091
                *pp = p->next;
2092
              else
2093
                pp = &p->next;
2094
            }
2095
        }
2096
 
2097
      /* Also discard relocs on undefined weak syms with non-default
2098
         visibility.  */
2099
      if (eh->dyn_relocs != NULL
2100
          && h->root.type == bfd_link_hash_undefweak)
2101
        {
2102
          if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2103
            eh->dyn_relocs = NULL;
2104
 
2105
          /* Make sure undefined weak symbols are output as a dynamic
2106
             symbol in PIEs.  */
2107
          else if (h->dynindx == -1
2108
                   && !h->forced_local)
2109
            {
2110
              if (! bfd_elf_link_record_dynamic_symbol (info, h))
2111
                return FALSE;
2112
            }
2113
        }
2114
    }
2115
  else
2116
    {
2117
      /* For the non-shared case, discard space for relocs against
2118
         symbols which turn out to need copy relocs or are not
2119
         dynamic.  */
2120
 
2121
      if (!h->non_got_ref
2122
          && ((h->def_dynamic
2123
               && !h->def_regular)
2124
              || (htab->root.dynamic_sections_created
2125
                  && (h->root.type == bfd_link_hash_undefweak
2126
                      || h->root.type == bfd_link_hash_undefined))))
2127
        {
2128
          /* Make sure this symbol is output as a dynamic symbol.
2129
             Undefined weak syms won't yet be marked as dynamic.  */
2130
          if (h->dynindx == -1
2131
              && !h->forced_local)
2132
            {
2133
              if (! bfd_elf_link_record_dynamic_symbol (info, h))
2134
                return FALSE;
2135
            }
2136
 
2137
          /* If that succeeded, we know we'll be keeping all the
2138
             relocs.  */
2139
          if (h->dynindx != -1)
2140
            goto keep;
2141
        }
2142
 
2143
      eh->dyn_relocs = NULL;
2144
 
2145
    keep: ;
2146
    }
2147
 
2148
  /* Finally, allocate space.  */
2149
  for (p = eh->dyn_relocs; p != NULL; p = p->next)
2150
    {
2151
      asection *sreloc = elf_section_data (p->sec)->sreloc;
2152
      sreloc->size += p->count * sizeof (Elf32_External_Rela);
2153
    }
2154
 
2155
  return TRUE;
2156
}
2157
 
2158
/* Find any dynamic relocs that apply to read-only sections.  */
2159
 
2160
static bfd_boolean
2161
readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2162
{
2163
  struct elf_m32r_link_hash_entry *eh;
2164
  struct elf_m32r_dyn_relocs *p;
2165
 
2166
  eh = (struct elf_m32r_link_hash_entry *) h;
2167
  for (p = eh->dyn_relocs; p != NULL; p = p->next)
2168
    {
2169
      asection *s = p->sec->output_section;
2170
 
2171
      if (s != NULL && (s->flags & SEC_READONLY) != 0)
2172
        {
2173
          struct bfd_link_info *info = (struct bfd_link_info *) inf;
2174
 
2175
          info->flags |= DF_TEXTREL;
2176
 
2177
          /* Not an error, just cut short the traversal.  */
2178
          return FALSE;
2179
        }
2180
    }
2181
  return TRUE;
2182
}
2183
 
2184
/* Set the sizes of the dynamic sections.  */
2185
 
2186
static bfd_boolean
2187
m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2188
                                struct bfd_link_info *info)
2189
{
2190
  struct elf_m32r_link_hash_table *htab;
2191
  bfd *dynobj;
2192
  asection *s;
2193
  bfd_boolean relocs;
2194
  bfd *ibfd;
2195
 
2196
#ifdef DEBUG_PIC
2197
  printf ("m32r_elf_size_dynamic_sections()\n");
2198
#endif
2199
 
2200
  htab = m32r_elf_hash_table (info);
2201
  if (htab == NULL)
2202
    return FALSE;
2203
 
2204
  dynobj = htab->root.dynobj;
2205
  BFD_ASSERT (dynobj != NULL);
2206
 
2207
  if (htab->root.dynamic_sections_created)
2208
    {
2209
      /* Set the contents of the .interp section to the interpreter.  */
2210
      if (info->executable)
2211
        {
2212
          s = bfd_get_section_by_name (dynobj, ".interp");
2213
          BFD_ASSERT (s != NULL);
2214
          s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2215
          s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2216
        }
2217
    }
2218
 
2219
  /* Set up .got offsets for local syms, and space for local dynamic
2220
     relocs.  */
2221
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2222
    {
2223
      bfd_signed_vma *local_got;
2224
      bfd_signed_vma *end_local_got;
2225
      bfd_size_type locsymcount;
2226
      Elf_Internal_Shdr *symtab_hdr;
2227
      asection *srel;
2228
 
2229
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2230
        continue;
2231
 
2232
      for (s = ibfd->sections; s != NULL; s = s->next)
2233
        {
2234
          struct elf_m32r_dyn_relocs *p;
2235
 
2236
          for (p = ((struct elf_m32r_dyn_relocs *)
2237
                    elf_section_data (s)->local_dynrel);
2238
               p != NULL;
2239
               p = p->next)
2240
            {
2241
              if (! bfd_is_abs_section (p->sec)
2242
                  && bfd_is_abs_section (p->sec->output_section))
2243
                {
2244
                  /* Input section has been discarded, either because
2245
                     it is a copy of a linkonce section or due to
2246
                     linker script /DISCARD/, so we'll be discarding
2247
                     the relocs too.  */
2248
                }
2249
              else if (p->count != 0)
2250
                {
2251
                  srel = elf_section_data (p->sec)->sreloc;
2252
                  srel->size += p->count * sizeof (Elf32_External_Rela);
2253
                  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2254
                    info->flags |= DF_TEXTREL;
2255
                }
2256
            }
2257
        }
2258
 
2259
      local_got = elf_local_got_refcounts (ibfd);
2260
      if (!local_got)
2261
        continue;
2262
 
2263
      symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2264
      locsymcount = symtab_hdr->sh_info;
2265
      end_local_got = local_got + locsymcount;
2266
      s = htab->sgot;
2267
      srel = htab->srelgot;
2268
      for (; local_got < end_local_got; ++local_got)
2269
        {
2270
          if (*local_got > 0)
2271
            {
2272
              *local_got = s->size;
2273
              s->size += 4;
2274
              if (info->shared)
2275
                srel->size += sizeof (Elf32_External_Rela);
2276
            }
2277
          else
2278
            *local_got = (bfd_vma) -1;
2279
        }
2280
    }
2281
 
2282
  /* Allocate global sym .plt and .got entries, and space for global
2283
     sym dynamic relocs.  */
2284
  elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2285
 
2286
  /* We now have determined the sizes of the various dynamic sections.
2287
     Allocate memory for them.  */
2288
  relocs = FALSE;
2289
  for (s = dynobj->sections; s != NULL; s = s->next)
2290
    {
2291
      if ((s->flags & SEC_LINKER_CREATED) == 0)
2292
        continue;
2293
 
2294
      if (s == htab->splt
2295
          || s == htab->sgot
2296
          || s == htab->sgotplt
2297
          || s == htab->sdynbss)
2298
        {
2299
          /* Strip this section if we don't need it; see the
2300
             comment below.  */
2301
        }
2302
      else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2303
        {
2304
          if (s->size != 0 && s != htab->srelplt)
2305
            relocs = TRUE;
2306
 
2307
          /* We use the reloc_count field as a counter if we need
2308
             to copy relocs into the output file.  */
2309
          s->reloc_count = 0;
2310
        }
2311
      else
2312
        /* It's not one of our sections, so don't allocate space.  */
2313
        continue;
2314
 
2315
      if (s->size == 0)
2316
        {
2317
          /* If we don't need this section, strip it from the
2318
             output file.  This is mostly to handle .rela.bss and
2319
             .rela.plt.  We must create both sections in
2320
             create_dynamic_sections, because they must be created
2321
             before the linker maps input sections to output
2322
             sections.  The linker does that before
2323
             adjust_dynamic_symbol is called, and it is that
2324
             function which decides whether anything needs to go
2325
             into these sections.  */
2326
          s->flags |= SEC_EXCLUDE;
2327
          continue;
2328
        }
2329
 
2330
      if ((s->flags & SEC_HAS_CONTENTS) == 0)
2331
        continue;
2332
 
2333
      /* Allocate memory for the section contents.  We use bfd_zalloc
2334
         here in case unused entries are not reclaimed before the
2335
         section's contents are written out.  This should not happen,
2336
         but this way if it does, we get a R_M32R_NONE reloc instead
2337
         of garbage.  */
2338
      s->contents = bfd_zalloc (dynobj, s->size);
2339
      if (s->contents == NULL)
2340
        return FALSE;
2341
    }
2342
 
2343
  if (htab->root.dynamic_sections_created)
2344
    {
2345
      /* Add some entries to the .dynamic section.  We fill in the
2346
         values later, in m32r_elf_finish_dynamic_sections, but we
2347
         must add the entries now so that we get the correct size for
2348
         the .dynamic section.  The DT_DEBUG entry is filled in by the
2349
         dynamic linker and used by the debugger.  */
2350
#define add_dynamic_entry(TAG, VAL) \
2351
  _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2352
 
2353
     if (info->executable)
2354
        {
2355
          if (! add_dynamic_entry (DT_DEBUG, 0))
2356
            return FALSE;
2357
        }
2358
 
2359
      if (htab->splt->size != 0)
2360
        {
2361
          if (! add_dynamic_entry (DT_PLTGOT, 0)
2362
              || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2363
              || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2364
              || ! add_dynamic_entry (DT_JMPREL, 0))
2365
            return FALSE;
2366
        }
2367
 
2368
      if (relocs)
2369
        {
2370
          if (! add_dynamic_entry (DT_RELA, 0)
2371
              || ! add_dynamic_entry (DT_RELASZ, 0)
2372
              || ! add_dynamic_entry (DT_RELAENT,
2373
                                      sizeof (Elf32_External_Rela)))
2374
            return FALSE;
2375
 
2376
          /* If any dynamic relocs apply to a read-only section,
2377
             then we need a DT_TEXTREL entry.  */
2378
          if ((info->flags & DF_TEXTREL) == 0)
2379
            elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2380
                                    info);
2381
 
2382
          if ((info->flags & DF_TEXTREL) != 0)
2383
            {
2384
              if (! add_dynamic_entry (DT_TEXTREL, 0))
2385
                return FALSE;
2386
            }
2387
        }
2388
    }
2389
#undef add_dynamic_entry
2390
 
2391
  return TRUE;
2392
}
2393
 
2394
/* Relocate an M32R/D ELF section.
2395
   There is some attempt to make this function usable for many architectures,
2396
   both for RELA and REL type relocs, if only to serve as a learning tool.
2397
 
2398
   The RELOCATE_SECTION function is called by the new ELF backend linker
2399
   to handle the relocations for a section.
2400
 
2401
   The relocs are always passed as Rela structures; if the section
2402
   actually uses Rel structures, the r_addend field will always be
2403
   zero.
2404
 
2405
   This function is responsible for adjust the section contents as
2406
   necessary, and (if using Rela relocs and generating a
2407
   relocatable output file) adjusting the reloc addend as
2408
   necessary.
2409
 
2410
   This function does not have to worry about setting the reloc
2411
   address or the reloc symbol index.
2412
 
2413
   LOCAL_SYMS is a pointer to the swapped in local symbols.
2414
 
2415
   LOCAL_SECTIONS is an array giving the section in the input file
2416
   corresponding to the st_shndx field of each local symbol.
2417
 
2418
   The global hash table entry for the global symbols can be found
2419
   via elf_sym_hashes (input_bfd).
2420
 
2421
   When generating relocatable output, this function must handle
2422
   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2423
   going to be the section symbol corresponding to the output
2424
   section, which means that the addend must be adjusted
2425
   accordingly.  */
2426
 
2427
static bfd_boolean
2428
m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2429
                           struct bfd_link_info *info,
2430
                           bfd *input_bfd,
2431
                           asection *input_section,
2432
                           bfd_byte *contents,
2433
                           Elf_Internal_Rela *relocs,
2434
                           Elf_Internal_Sym *local_syms,
2435
                           asection **local_sections)
2436
{
2437
  Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2438
  struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2439
  Elf_Internal_Rela *rel, *relend;
2440
  /* Assume success.  */
2441
  bfd_boolean ret = TRUE;
2442
  struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2443
  bfd *dynobj;
2444
  bfd_vma *local_got_offsets;
2445
  asection *sgot, *splt, *sreloc;
2446
  bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2447
 
2448
  if (htab == NULL)
2449
    return FALSE;
2450
 
2451
  dynobj = htab->root.dynobj;
2452
  local_got_offsets = elf_local_got_offsets (input_bfd);
2453
 
2454
  sgot = htab->sgot;
2455
  splt = htab->splt;
2456
  sreloc = NULL;
2457
 
2458
  rel = relocs;
2459
  relend = relocs + input_section->reloc_count;
2460
  for (; rel < relend; rel++)
2461
    {
2462
      int r_type;
2463
      reloc_howto_type *howto;
2464
      unsigned long r_symndx;
2465
      struct elf_link_hash_entry *h;
2466
      /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2467
         ensure it's zero (we use REL relocs, not RELA).  Therefore this
2468
         should be assigning zero to `addend', but for clarity we use
2469
         `r_addend'.  */
2470
      bfd_vma addend = rel->r_addend;
2471
      bfd_vma offset = rel->r_offset;
2472
      bfd_vma relocation;
2473
      Elf_Internal_Sym *sym;
2474
      asection *sec;
2475
      const char *sym_name;
2476
      bfd_reloc_status_type r;
2477
      const char *errmsg = NULL;
2478
      bfd_boolean use_rel = FALSE;
2479
 
2480
      h = NULL;
2481
      r_type = ELF32_R_TYPE (rel->r_info);
2482
      if (r_type < 0 || r_type >= (int) R_M32R_max)
2483
        {
2484
          (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2485
                                 input_bfd,
2486
                                 (int) r_type);
2487
          bfd_set_error (bfd_error_bad_value);
2488
          ret = FALSE;
2489
          continue;
2490
        }
2491
 
2492
      if (   r_type == R_M32R_GNU_VTENTRY
2493
          || r_type == R_M32R_GNU_VTINHERIT
2494
          || r_type == R_M32R_NONE
2495
          || r_type == R_M32R_RELA_GNU_VTENTRY
2496
          || r_type == R_M32R_RELA_GNU_VTINHERIT)
2497
        continue;
2498
 
2499
      if (r_type <= R_M32R_GNU_VTENTRY)
2500
        use_rel = TRUE;
2501
 
2502
      howto = m32r_elf_howto_table + r_type;
2503
      r_symndx = ELF32_R_SYM (rel->r_info);
2504
 
2505
      sym = NULL;
2506
      sec = NULL;
2507
      h = NULL;
2508
 
2509
      if (r_symndx < symtab_hdr->sh_info)
2510
        {
2511
          /* Local symbol.  */
2512
          sym = local_syms + r_symndx;
2513
          sec = local_sections[r_symndx];
2514
          sym_name = "<local symbol>";
2515
 
2516
          if (!use_rel)
2517
            {
2518
              relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2519
              addend = rel->r_addend;
2520
            }
2521
          else
2522
            {
2523
              relocation = (sec->output_section->vma
2524
                            + sec->output_offset
2525
                            + sym->st_value);
2526
            }
2527
        }
2528
      else
2529
        {
2530
          /* External symbol.  */
2531
          relocation = 0;
2532
 
2533
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2534
          while (h->root.type == bfd_link_hash_indirect
2535
                 || h->root.type == bfd_link_hash_warning)
2536
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
2537
          sym_name = h->root.root.string;
2538
 
2539
          if (h->root.type == bfd_link_hash_defined
2540
              || h->root.type == bfd_link_hash_defweak)
2541
            {
2542
              bfd_boolean dyn;
2543
              sec = h->root.u.def.section;
2544
 
2545
              dyn = htab->root.dynamic_sections_created;
2546
              sec = h->root.u.def.section;
2547
              if (r_type == R_M32R_GOTPC24
2548
                  || (r_type == R_M32R_GOTPC_HI_ULO
2549
                      || r_type == R_M32R_GOTPC_HI_SLO
2550
                      || r_type == R_M32R_GOTPC_LO)
2551
                  || (r_type == R_M32R_26_PLTREL
2552
                      && h->plt.offset != (bfd_vma) -1)
2553
                  || ((r_type == R_M32R_GOT24
2554
                       || r_type == R_M32R_GOT16_HI_ULO
2555
                       || r_type == R_M32R_GOT16_HI_SLO
2556
                       || r_type == R_M32R_GOT16_LO)
2557
                      && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2558
                                                          info->shared, h)
2559
                      && (! info->shared
2560
                          || (! info->symbolic && h->dynindx != -1)
2561
                          || !h->def_regular))
2562
                  || (info->shared
2563
                      && ((! info->symbolic && h->dynindx != -1)
2564
                          || !h->def_regular)
2565
                      && (((r_type == R_M32R_16_RELA
2566
                            || r_type == R_M32R_32_RELA
2567
                            || r_type == R_M32R_24_RELA
2568
                            || r_type == R_M32R_HI16_ULO_RELA
2569
                            || r_type == R_M32R_HI16_SLO_RELA
2570
                            || r_type == R_M32R_LO16_RELA)
2571
                           && !h->forced_local)
2572
                          || r_type == R_M32R_REL32
2573
                          || r_type == R_M32R_10_PCREL_RELA
2574
                          || r_type == R_M32R_18_PCREL_RELA
2575
                          || r_type == R_M32R_26_PCREL_RELA)
2576
                      && ((input_section->flags & SEC_ALLOC) != 0
2577
                          /* DWARF will emit R_M32R_16(24,32) relocations
2578
                             in its sections against symbols defined
2579
                             externally in shared libraries.  We can't do
2580
                             anything with them here.  */
2581
                          || ((input_section->flags & SEC_DEBUGGING) != 0
2582
                              && h->def_dynamic))))
2583
                {
2584
                  /* In these cases, we don't need the relocation
2585
                     value.  We check specially because in some
2586
                     obscure cases sec->output_section will be NULL.  */
2587
                }
2588
              else if (sec->output_section != NULL)
2589
                relocation = (h->root.u.def.value
2590
                              + sec->output_section->vma
2591
                              + sec->output_offset);
2592 163 khays
              else if (!info->relocatable
2593
                       && (_bfd_elf_section_offset (output_bfd, info,
2594
                                                    input_section,
2595
                                                    rel->r_offset)
2596
                           != (bfd_vma) -1))
2597 14 khays
                {
2598
                  (*_bfd_error_handler)
2599
                    (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2600
                     input_bfd,
2601
                     input_section,
2602
                     (long) rel->r_offset,
2603
                     howto->name,
2604
                     h->root.root.string);
2605
                }
2606
            }
2607
          else if (h->root.type == bfd_link_hash_undefweak)
2608
            ;
2609
          else if (info->unresolved_syms_in_objects == RM_IGNORE
2610
                   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2611
            ;
2612
          else if (!info->relocatable)
2613
            {
2614
              if (! ((*info->callbacks->undefined_symbol)
2615
                     (info, h->root.root.string, input_bfd,
2616
                      input_section, offset,
2617
                      (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2618
                       || ELF_ST_VISIBILITY (h->other)))))
2619
                return FALSE;
2620
            }
2621
        }
2622
 
2623
      if (sec != NULL && elf_discarded_section (sec))
2624
        RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2625
                                         rel, relend, howto, contents);
2626
 
2627
      if (info->relocatable && !use_rel)
2628
        {
2629
          /* This is a relocatable link.  We don't have to change
2630
             anything, unless the reloc is against a section symbol,
2631
             in which case we have to adjust according to where the
2632
             section symbol winds up in the output section.  */
2633
          if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2634
            rel->r_addend += sec->output_offset;
2635
          continue;
2636
        }
2637
 
2638
      if (info->relocatable && use_rel)
2639
        {
2640
          /* This is a relocatable link.  We don't have to change
2641
             anything, unless the reloc is against a section symbol,
2642
             in which case we have to adjust according to where the
2643
             section symbol winds up in the output section.  */
2644
          if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2645
            continue;
2646
 
2647
          addend += sec->output_offset;
2648
 
2649
          /* If partial_inplace, we need to store any additional addend
2650
             back in the section.  */
2651
          if (! howto->partial_inplace)
2652
            continue;
2653
          /* ??? Here is a nice place to call a special_function
2654
             like handler.  */
2655
          if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2656
            r = _bfd_relocate_contents (howto, input_bfd,
2657
                                        addend, contents + offset);
2658
          else
2659
            {
2660
              Elf_Internal_Rela *lorel;
2661
 
2662
              /* We allow an arbitrary number of HI16 relocs before the
2663
                 LO16 reloc.  This permits gcc to emit the HI and LO relocs
2664
                 itself.  */
2665
              for (lorel = rel + 1;
2666
                   (lorel < relend
2667
                    && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2668
                        || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2669
                   lorel++)
2670
                continue;
2671
              if (lorel < relend
2672
                  && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2673
                {
2674
                  m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2675
                                          contents, addend);
2676
                  r = bfd_reloc_ok;
2677
                }
2678
              else
2679
                r = _bfd_relocate_contents (howto, input_bfd,
2680
                                            addend, contents + offset);
2681
            }
2682
        }
2683
      else
2684
        {
2685
          /* Sanity check the address.  */
2686
          if (offset > high_address)
2687
            {
2688
              r = bfd_reloc_outofrange;
2689
              goto check_reloc;
2690
            }
2691
 
2692
          switch ((int) r_type)
2693
            {
2694
            case R_M32R_GOTOFF:
2695
              /* Relocation is relative to the start of the global offset
2696
                 table (for ld24 rx, #uimm24). eg access at label+addend
2697
 
2698
                 ld24 rx. #label@GOTOFF + addend
2699
                 sub  rx, r12.  */
2700
 
2701
              BFD_ASSERT (sgot != NULL);
2702
 
2703
              relocation = -(relocation - sgot->output_section->vma);
2704
              rel->r_addend = -rel->r_addend;
2705
              break;
2706
 
2707
            case R_M32R_GOTOFF_HI_ULO:
2708
            case R_M32R_GOTOFF_HI_SLO:
2709
            case R_M32R_GOTOFF_LO:
2710
              BFD_ASSERT (sgot != NULL);
2711
 
2712
              relocation -= sgot->output_section->vma;
2713
 
2714
              if ((r_type == R_M32R_GOTOFF_HI_SLO)
2715
                  && ((relocation + rel->r_addend) & 0x8000))
2716
                rel->r_addend += 0x10000;
2717
              break;
2718
 
2719
            case R_M32R_GOTPC24:
2720
              /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2721
                 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2722
               */
2723
             relocation = sgot->output_section->vma;
2724
             break;
2725
 
2726
            case R_M32R_GOTPC_HI_ULO:
2727
            case R_M32R_GOTPC_HI_SLO:
2728
            case R_M32R_GOTPC_LO:
2729
              {
2730
                /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2731
                   bl .+4
2732
                   seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2733
                   or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2734
                   or
2735
                   bl .+4
2736
                   seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2737
                   add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2738
                 */
2739
                relocation = sgot->output_section->vma;
2740
                relocation -= (input_section->output_section->vma
2741
                               + input_section->output_offset
2742
                               + rel->r_offset);
2743
                if ((r_type == R_M32R_GOTPC_HI_SLO)
2744
                     && ((relocation + rel->r_addend) & 0x8000))
2745
                  rel->r_addend += 0x10000;
2746
 
2747
                break;
2748
              }
2749
            case R_M32R_GOT16_HI_ULO:
2750
            case R_M32R_GOT16_HI_SLO:
2751
            case R_M32R_GOT16_LO:
2752
              /* Fall through.  */
2753
            case R_M32R_GOT24:
2754
              /* Relocation is to the entry for this symbol in the global
2755
                 offset table.  */
2756
              BFD_ASSERT (sgot != NULL);
2757
 
2758
              if (h != NULL)
2759
                {
2760
                  bfd_boolean dyn;
2761
                  bfd_vma off;
2762
 
2763
                  off = h->got.offset;
2764
                  BFD_ASSERT (off != (bfd_vma) -1);
2765
 
2766
                  dyn = htab->root.dynamic_sections_created;
2767
                  if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2768
                      || (info->shared
2769
                          && (info->symbolic
2770
                              || h->dynindx == -1
2771
                              || h->forced_local)
2772
                          && h->def_regular))
2773
                    {
2774
                      /* This is actually a static link, or it is a
2775
                         -Bsymbolic link and the symbol is defined
2776
                         locally, or the symbol was forced to be local
2777
                         because of a version file.  We must initialize
2778
                         this entry in the global offset table.  Since the
2779
                         offset must always be a multiple of 4, we use the
2780
                         least significant bit to record whether we have
2781
                         initialized it already.
2782
 
2783
                         When doing a dynamic link, we create a .rela.got
2784
                         relocation entry to initialize the value.  This
2785
                         is done in the finish_dynamic_symbol routine.  */
2786
                      if ((off & 1) != 0)
2787
                        off &= ~1;
2788
                      else
2789
                        {
2790
                          bfd_put_32 (output_bfd, relocation,
2791
                                      sgot->contents + off);
2792
                          h->got.offset |= 1;
2793
                        }
2794
                    }
2795
 
2796
                  relocation = sgot->output_offset + off;
2797
                }
2798
              else
2799
                {
2800
                  bfd_vma off;
2801
                  bfd_byte *loc;
2802
 
2803
                  BFD_ASSERT (local_got_offsets != NULL
2804
                              && local_got_offsets[r_symndx] != (bfd_vma) -1);
2805
 
2806
                  off = local_got_offsets[r_symndx];
2807
 
2808
                  /* The offset must always be a multiple of 4.  We use
2809
                     the least significant bit to record whether we have
2810
                     already processed this entry.  */
2811
                  if ((off & 1) != 0)
2812
                    off &= ~1;
2813
                  else
2814
                    {
2815
                      bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2816
 
2817
                      if (info->shared)
2818
                        {
2819
                          asection *srelgot;
2820
                          Elf_Internal_Rela outrel;
2821
 
2822
                          /* We need to generate a R_M32R_RELATIVE reloc
2823
                             for the dynamic linker.  */
2824
                          srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2825
                          BFD_ASSERT (srelgot != NULL);
2826
 
2827
                          outrel.r_offset = (sgot->output_section->vma
2828
                                             + sgot->output_offset
2829
                                             + off);
2830
                          outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2831
                          outrel.r_addend = relocation;
2832
                          loc = srelgot->contents;
2833
                          loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2834
                          bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2835
                          ++srelgot->reloc_count;
2836
                        }
2837
 
2838
                      local_got_offsets[r_symndx] |= 1;
2839
                    }
2840
 
2841
                  relocation = sgot->output_offset + off;
2842
                }
2843
              if ((r_type == R_M32R_GOT16_HI_SLO)
2844
                  && ((relocation + rel->r_addend) & 0x8000))
2845
                rel->r_addend += 0x10000;
2846
 
2847
              break;
2848
 
2849
            case R_M32R_26_PLTREL:
2850
              /* Relocation is to the entry for this symbol in the
2851
                 procedure linkage table.  */
2852
 
2853
              /* The native assembler will generate a 26_PLTREL reloc
2854
                 for a local symbol if you assemble a call from one
2855
                 section to another when using -K pic. */
2856
              if (h == NULL)
2857
                break;
2858
 
2859
              if (h->forced_local)
2860
                break;
2861
 
2862
              if (h->plt.offset == (bfd_vma) -1)
2863
                /* We didn't make a PLT entry for this symbol.  This
2864
                   happens when statically linking PIC code, or when
2865
                   using -Bsymbolic.  */
2866
                break;
2867
 
2868
              relocation = (splt->output_section->vma
2869
                            + splt->output_offset
2870
                            + h->plt.offset);
2871
              break;
2872
 
2873
            case R_M32R_HI16_SLO_RELA:
2874
              if ((relocation + rel->r_addend) & 0x8000)
2875
                rel->r_addend += 0x10000;
2876
              /* Fall through.  */
2877
 
2878
            case R_M32R_16_RELA:
2879
            case R_M32R_24_RELA:
2880
            case R_M32R_32_RELA:
2881
            case R_M32R_REL32:
2882
            case R_M32R_10_PCREL_RELA:
2883
            case R_M32R_18_PCREL_RELA:
2884
            case R_M32R_26_PCREL_RELA:
2885
            case R_M32R_HI16_ULO_RELA:
2886
            case R_M32R_LO16_RELA:
2887
              if (info->shared
2888
                  && r_symndx != STN_UNDEF
2889
                  && (input_section->flags & SEC_ALLOC) != 0
2890
                  && ((   r_type != R_M32R_10_PCREL_RELA
2891
                       && r_type != R_M32R_18_PCREL_RELA
2892
                       && r_type != R_M32R_26_PCREL_RELA
2893
                       && r_type != R_M32R_REL32)
2894
                      || (h != NULL
2895
                          && h->dynindx != -1
2896
                          && (! info->symbolic
2897
                              || !h->def_regular))))
2898
                {
2899
                  Elf_Internal_Rela outrel;
2900
                  bfd_boolean skip, relocate;
2901
                  bfd_byte *loc;
2902
 
2903
                  /* When generating a shared object, these relocations
2904
                     are copied into the output file to be resolved at run
2905
                     time.  */
2906
                  if (sreloc == NULL)
2907
                    {
2908
                      sreloc = _bfd_elf_get_dynamic_reloc_section
2909
                        (input_bfd, input_section, /*rela?*/ TRUE);
2910
                      if (sreloc == NULL)
2911
                        return FALSE;
2912
                    }
2913
 
2914
                  skip = FALSE;
2915
                  relocate = FALSE;
2916
 
2917
                  outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2918
                                                             info,
2919
                                                             input_section,
2920
                                                             rel->r_offset);
2921
                  if (outrel.r_offset == (bfd_vma) -1)
2922
                    skip = TRUE;
2923
                  else if (outrel.r_offset == (bfd_vma) -2)
2924
                    skip = relocate = TRUE;
2925
                  outrel.r_offset += (input_section->output_section->vma
2926
                                      + input_section->output_offset);
2927
 
2928
                  if (skip)
2929
                    memset (&outrel, 0, sizeof outrel);
2930
                  else if (   r_type == R_M32R_10_PCREL_RELA
2931
                           || r_type == R_M32R_18_PCREL_RELA
2932
                           || r_type == R_M32R_26_PCREL_RELA
2933
                           || r_type == R_M32R_REL32)
2934
                    {
2935
                      BFD_ASSERT (h != NULL && h->dynindx != -1);
2936
                      outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2937
                      outrel.r_addend = rel->r_addend;
2938
                    }
2939
                  else
2940
                    {
2941
                    /* h->dynindx may be -1 if this symbol was marked to
2942
                       become local.  */
2943
                    if (h == NULL
2944
                        || ((info->symbolic || h->dynindx == -1)
2945
                             && h->def_regular))
2946
                      {
2947
                        relocate = TRUE;
2948
                        outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2949
                        outrel.r_addend = relocation + rel->r_addend;
2950
                      }
2951
                    else
2952
                      {
2953
                        BFD_ASSERT (h->dynindx != -1);
2954
                        outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2955
                        outrel.r_addend = relocation + rel->r_addend;
2956
                      }
2957
                    }
2958
 
2959
                  loc = sreloc->contents;
2960
                  loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2961
                  bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2962
                  ++sreloc->reloc_count;
2963
 
2964
                  /* If this reloc is against an external symbol, we do
2965
                     not want to fiddle with the addend.  Otherwise, we
2966
                     need to include the symbol value so that it becomes
2967
                     an addend for the dynamic reloc.  */
2968
                  if (! relocate)
2969
                    continue;
2970
                  break;
2971
                }
2972
              else if (r_type != R_M32R_10_PCREL_RELA)
2973
                break;
2974
              /* Fall through.  */
2975
 
2976
            case (int) R_M32R_10_PCREL :
2977
              r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2978
                                              contents, offset,
2979
                                              sec, relocation, addend);
2980
              goto check_reloc;
2981
 
2982
            case (int) R_M32R_HI16_SLO :
2983
            case (int) R_M32R_HI16_ULO :
2984
              {
2985
                Elf_Internal_Rela *lorel;
2986
 
2987
                /* We allow an arbitrary number of HI16 relocs before the
2988
                   LO16 reloc.  This permits gcc to emit the HI and LO relocs
2989
                   itself.  */
2990
                for (lorel = rel + 1;
2991
                     (lorel < relend
2992
                      && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2993
                          || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2994
                     lorel++)
2995
                  continue;
2996
                if (lorel < relend
2997
                    && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2998
                  {
2999
                    m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3000
                                            contents, relocation + addend);
3001
                    r = bfd_reloc_ok;
3002
                  }
3003
                else
3004
                  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3005
                                                contents, offset,
3006
                                                relocation, addend);
3007
              }
3008
 
3009
              goto check_reloc;
3010
 
3011
            case (int) R_M32R_SDA16_RELA:
3012
            case (int) R_M32R_SDA16 :
3013
              {
3014
                const char *name;
3015
 
3016
                BFD_ASSERT (sec != NULL);
3017
                name = bfd_get_section_name (abfd, sec);
3018
 
3019
                if (   strcmp (name, ".sdata") == 0
3020
                    || strcmp (name, ".sbss") == 0
3021
                    || strcmp (name, ".scommon") == 0)
3022
                  {
3023
                    bfd_vma sda_base;
3024
                    bfd *out_bfd = sec->output_section->owner;
3025
 
3026
                    r = m32r_elf_final_sda_base (out_bfd, info,
3027
                                                 &errmsg,
3028
                                                 &sda_base);
3029
                    if (r != bfd_reloc_ok)
3030
                      {
3031
                        ret = FALSE;
3032
                        goto check_reloc;
3033
                      }
3034
 
3035
                    /* At this point `relocation' contains the object's
3036
                       address.  */
3037
                    relocation -= sda_base;
3038
                    /* Now it contains the offset from _SDA_BASE_.  */
3039
                  }
3040
                else
3041
                  {
3042
                    (*_bfd_error_handler)
3043
                      (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3044
                       input_bfd,
3045
                       sec,
3046
                       sym_name,
3047
                       m32r_elf_howto_table[(int) r_type].name);
3048
                    /*bfd_set_error (bfd_error_bad_value); ??? why? */
3049
                    ret = FALSE;
3050
                    continue;
3051
                  }
3052
              }
3053
              /* Fall through.  */
3054
 
3055
            default : /* OLD_M32R_RELOC */
3056
 
3057
              r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3058
                                            contents, offset,
3059
                                            relocation, addend);
3060
              goto check_reloc;
3061
            }
3062
 
3063
          r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3064
                                        contents, rel->r_offset,
3065
                                        relocation, rel->r_addend);
3066
 
3067
        }
3068
 
3069
    check_reloc:
3070
 
3071
      if (r != bfd_reloc_ok)
3072
        {
3073
          /* FIXME: This should be generic enough to go in a utility.  */
3074
          const char *name;
3075
 
3076
          if (h != NULL)
3077
            name = h->root.root.string;
3078
          else
3079
            {
3080
              name = (bfd_elf_string_from_elf_section
3081
                      (input_bfd, symtab_hdr->sh_link, sym->st_name));
3082
              if (name == NULL || *name == '\0')
3083
                name = bfd_section_name (input_bfd, sec);
3084
            }
3085
 
3086
          if (errmsg != NULL)
3087
            goto common_error;
3088
 
3089
          switch (r)
3090
            {
3091
            case bfd_reloc_overflow:
3092
              if (! ((*info->callbacks->reloc_overflow)
3093
                     (info, (h ? &h->root : NULL), name, howto->name,
3094
                      (bfd_vma) 0, input_bfd, input_section, offset)))
3095
                return FALSE;
3096
              break;
3097
 
3098
            case bfd_reloc_undefined:
3099
              if (! ((*info->callbacks->undefined_symbol)
3100
                     (info, name, input_bfd, input_section,
3101
                      offset, TRUE)))
3102
                return FALSE;
3103
              break;
3104
 
3105
            case bfd_reloc_outofrange:
3106
              errmsg = _("internal error: out of range error");
3107
              goto common_error;
3108
 
3109
            case bfd_reloc_notsupported:
3110
              errmsg = _("internal error: unsupported relocation error");
3111
              goto common_error;
3112
 
3113
            case bfd_reloc_dangerous:
3114
              errmsg = _("internal error: dangerous error");
3115
              goto common_error;
3116
 
3117
            default:
3118
              errmsg = _("internal error: unknown error");
3119
              /* fall through */
3120
 
3121
            common_error:
3122
              if (!((*info->callbacks->warning)
3123
                    (info, errmsg, name, input_bfd, input_section,
3124
                     offset)))
3125
                return FALSE;
3126
              break;
3127
            }
3128
        }
3129
    }
3130
 
3131
  return ret;
3132
}
3133
 
3134
/* Finish up dynamic symbol handling.  We set the contents of various
3135
   dynamic sections here.  */
3136
 
3137
static bfd_boolean
3138
m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3139
                                struct bfd_link_info *info,
3140
                                struct elf_link_hash_entry *h,
3141
                                Elf_Internal_Sym *sym)
3142
{
3143
  struct elf_m32r_link_hash_table *htab;
3144
  bfd_byte *loc;
3145
 
3146
#ifdef DEBUG_PIC
3147
  printf ("m32r_elf_finish_dynamic_symbol()\n");
3148
#endif
3149
 
3150
  htab = m32r_elf_hash_table (info);
3151
  if (htab == NULL)
3152
    return FALSE;
3153
 
3154
  if (h->plt.offset != (bfd_vma) -1)
3155
    {
3156
      asection *splt;
3157
      asection *sgot;
3158
      asection *srela;
3159
 
3160
      bfd_vma plt_index;
3161
      bfd_vma got_offset;
3162
      Elf_Internal_Rela rela;
3163
 
3164
      /* This symbol has an entry in the procedure linkage table.  Set
3165
         it up.  */
3166
 
3167
      BFD_ASSERT (h->dynindx != -1);
3168
 
3169
      splt = htab->splt;
3170
      sgot = htab->sgotplt;
3171
      srela = htab->srelplt;
3172
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3173
 
3174
      /* Get the index in the procedure linkage table which
3175
         corresponds to this symbol.  This is the index of this symbol
3176
         in all the symbols for which we are making plt entries.  The
3177
         first entry in the procedure linkage table is reserved.  */
3178
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3179
 
3180
      /* Get the offset into the .got table of the entry that
3181
        corresponds to this function.  Each .got entry is 4 bytes.
3182
        The first three are reserved.  */
3183
      got_offset = (plt_index + 3) * 4;
3184
 
3185
      /* Fill in the entry in the procedure linkage table.  */
3186
      if (! info->shared)
3187
        {
3188
          bfd_put_32 (output_bfd,
3189
              (PLT_ENTRY_WORD0b
3190
               + (((sgot->output_section->vma
3191
                    + sgot->output_offset
3192
                    + got_offset) >> 16) & 0xffff)),
3193
              splt->contents + h->plt.offset);
3194
          bfd_put_32 (output_bfd,
3195
              (PLT_ENTRY_WORD1b
3196
               + ((sgot->output_section->vma
3197
                   + sgot->output_offset
3198
                   + got_offset) & 0xffff)),
3199
              splt->contents + h->plt.offset + 4);
3200
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3201
              splt->contents + h->plt.offset + 8);
3202
          bfd_put_32 (output_bfd,
3203
              (PLT_ENTRY_WORD3
3204
               + plt_index * sizeof (Elf32_External_Rela)),
3205
              splt->contents + h->plt.offset + 12);
3206
          bfd_put_32 (output_bfd,
3207
              (PLT_ENTRY_WORD4
3208
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3209
              splt->contents + h->plt.offset + 16);
3210
        }
3211
      else
3212
        {
3213
          bfd_put_32 (output_bfd,
3214
              PLT_ENTRY_WORD0 + got_offset,
3215
              splt->contents + h->plt.offset);
3216
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3217
              splt->contents + h->plt.offset + 4);
3218
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3219
              splt->contents + h->plt.offset + 8);
3220
          bfd_put_32 (output_bfd,
3221
              (PLT_ENTRY_WORD3
3222
               + plt_index * sizeof (Elf32_External_Rela)),
3223
              splt->contents + h->plt.offset + 12);
3224
          bfd_put_32 (output_bfd,
3225
              (PLT_ENTRY_WORD4
3226
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3227
              splt->contents + h->plt.offset + 16);
3228
        }
3229
 
3230
      /* Fill in the entry in the global offset table.  */
3231
      bfd_put_32 (output_bfd,
3232
                  (splt->output_section->vma
3233
                   + splt->output_offset
3234
                   + h->plt.offset
3235
                   + 12), /* same offset */
3236
                  sgot->contents + got_offset);
3237
 
3238
      /* Fill in the entry in the .rela.plt section.  */
3239
      rela.r_offset = (sgot->output_section->vma
3240
                       + sgot->output_offset
3241
                       + got_offset);
3242
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3243
      rela.r_addend = 0;
3244
      loc = srela->contents;
3245
      loc += plt_index * sizeof (Elf32_External_Rela);
3246
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3247
 
3248
      if (!h->def_regular)
3249
        {
3250
          /* Mark the symbol as undefined, rather than as defined in
3251
             the .plt section.  Leave the value alone.  */
3252
          sym->st_shndx = SHN_UNDEF;
3253
        }
3254
    }
3255
 
3256
  if (h->got.offset != (bfd_vma) -1)
3257
    {
3258
      asection *sgot;
3259
      asection *srela;
3260
      Elf_Internal_Rela rela;
3261
 
3262
      /* This symbol has an entry in the global offset table.  Set it
3263
         up.  */
3264
 
3265
      sgot = htab->sgot;
3266
      srela = htab->srelgot;
3267
      BFD_ASSERT (sgot != NULL && srela != NULL);
3268
 
3269
      rela.r_offset = (sgot->output_section->vma
3270
                       + sgot->output_offset
3271
                       + (h->got.offset &~ 1));
3272
 
3273
      /* If this is a -Bsymbolic link, and the symbol is defined
3274
         locally, we just want to emit a RELATIVE reloc.  Likewise if
3275
         the symbol was forced to be local because of a version file.
3276
         The entry in the global offset table will already have been
3277
         initialized in the relocate_section function.  */
3278
      if (info->shared
3279
          && (info->symbolic
3280
              || h->dynindx == -1
3281
              || h->forced_local)
3282
          && h->def_regular)
3283
        {
3284
          rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3285
          rela.r_addend = (h->root.u.def.value
3286
                           + h->root.u.def.section->output_section->vma
3287
                           + h->root.u.def.section->output_offset);
3288
        }
3289
      else
3290
        {
3291
          BFD_ASSERT ((h->got.offset & 1) == 0);
3292
          bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3293
          rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3294
          rela.r_addend = 0;
3295
        }
3296
 
3297
      loc = srela->contents;
3298
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3299
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3300
      ++srela->reloc_count;
3301
    }
3302
 
3303
  if (h->needs_copy)
3304
    {
3305
      asection *s;
3306
      Elf_Internal_Rela rela;
3307
 
3308
      /* This symbols needs a copy reloc.  Set it up.  */
3309
 
3310
      BFD_ASSERT (h->dynindx != -1
3311
                  && (h->root.type == bfd_link_hash_defined
3312
                      || h->root.type == bfd_link_hash_defweak));
3313
 
3314
      s = bfd_get_section_by_name (h->root.u.def.section->owner,
3315
                                   ".rela.bss");
3316
      BFD_ASSERT (s != NULL);
3317
 
3318
      rela.r_offset = (h->root.u.def.value
3319
                       + h->root.u.def.section->output_section->vma
3320
                       + h->root.u.def.section->output_offset);
3321
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3322
      rela.r_addend = 0;
3323
      loc = s->contents;
3324
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
3325
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3326
      ++s->reloc_count;
3327
    }
3328
 
3329
  /* Mark some specially defined symbols as absolute.  */
3330
  if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3331
      || h == htab->root.hgot)
3332
    sym->st_shndx = SHN_ABS;
3333
 
3334
  return TRUE;
3335
}
3336
 
3337
 
3338
/* Finish up the dynamic sections.  */
3339
 
3340
static bfd_boolean
3341
m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3342
                                  struct bfd_link_info *info)
3343
{
3344
  struct elf_m32r_link_hash_table *htab;
3345
  bfd *dynobj;
3346
  asection *sdyn;
3347
  asection *sgot;
3348
 
3349
#ifdef DEBUG_PIC
3350
  printf ("m32r_elf_finish_dynamic_sections()\n");
3351
#endif
3352
 
3353
  htab = m32r_elf_hash_table (info);
3354
  if (htab == NULL)
3355
    return FALSE;
3356
 
3357
  dynobj = htab->root.dynobj;
3358
 
3359
  sgot = htab->sgotplt;
3360
  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3361
 
3362
  if (htab->root.dynamic_sections_created)
3363
    {
3364
      asection *splt;
3365
      Elf32_External_Dyn *dyncon, *dynconend;
3366
 
3367
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
3368
 
3369
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
3370
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3371
 
3372
      for (; dyncon < dynconend; dyncon++)
3373
        {
3374
          Elf_Internal_Dyn dyn;
3375
          asection *s;
3376
 
3377
          bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3378
 
3379
          switch (dyn.d_tag)
3380
            {
3381
            default:
3382
              break;
3383
 
3384
            case DT_PLTGOT:
3385
              s = htab->sgot->output_section;
3386
              goto get_vma;
3387
            case DT_JMPREL:
3388
              s = htab->srelplt->output_section;
3389
            get_vma:
3390
              BFD_ASSERT (s != NULL);
3391
              dyn.d_un.d_ptr = s->vma;
3392
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3393
              break;
3394
 
3395
            case DT_PLTRELSZ:
3396
              s = htab->srelplt->output_section;
3397
              BFD_ASSERT (s != NULL);
3398
              dyn.d_un.d_val = s->size;
3399
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3400
              break;
3401
 
3402
            case DT_RELASZ:
3403
              /* My reading of the SVR4 ABI indicates that the
3404
                 procedure linkage table relocs (DT_JMPREL) should be
3405
                 included in the overall relocs (DT_RELA).  This is
3406
                 what Solaris does.  However, UnixWare can not handle
3407
                 that case.  Therefore, we override the DT_RELASZ entry
3408
                 here to make it not include the JMPREL relocs.  Since
3409
                 the linker script arranges for .rela.plt to follow all
3410
                 other relocation sections, we don't have to worry
3411
                 about changing the DT_RELA entry.  */
3412
              if (htab->srelplt != NULL)
3413
                {
3414
                  s = htab->srelplt->output_section;
3415
                  dyn.d_un.d_val -= s->size;
3416
                }
3417
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3418
              break;
3419
            }
3420
        }
3421
 
3422
      /* Fill in the first entry in the procedure linkage table.  */
3423
      splt = htab->splt;
3424
      if (splt && splt->size > 0)
3425
        {
3426
          if (info->shared)
3427
            {
3428
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3429
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3430
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3431
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3432
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3433
            }
3434
          else
3435
            {
3436
              unsigned long addr;
3437
              /* addr = .got + 4 */
3438
              addr = sgot->output_section->vma + sgot->output_offset + 4;
3439
              bfd_put_32 (output_bfd,
3440
                          PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3441
                          splt->contents);
3442
              bfd_put_32 (output_bfd,
3443
                          PLT0_ENTRY_WORD1 | (addr & 0xffff),
3444
                          splt->contents + 4);
3445
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3446
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3447
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3448
            }
3449
 
3450
          elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3451
            PLT_ENTRY_SIZE;
3452
        }
3453
    }
3454
 
3455
  /* Fill in the first three entries in the global offset table.  */
3456
  if (sgot && sgot->size > 0)
3457
    {
3458
      if (sdyn == NULL)
3459
        bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3460
      else
3461
        bfd_put_32 (output_bfd,
3462
                    sdyn->output_section->vma + sdyn->output_offset,
3463
                    sgot->contents);
3464
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3465
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3466
 
3467
      elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3468
    }
3469
 
3470
  return TRUE;
3471
}
3472
 
3473
 
3474
/* Set the right machine number.  */
3475
 
3476
static bfd_boolean
3477
m32r_elf_object_p (bfd *abfd)
3478
{
3479
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3480
    {
3481
    default:
3482
    case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3483
    case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3484
    case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3485
    }
3486
  return TRUE;
3487
}
3488
 
3489
/* Store the machine number in the flags field.  */
3490
 
3491
static void
3492
m32r_elf_final_write_processing (bfd *abfd,
3493
                                 bfd_boolean linker ATTRIBUTE_UNUSED)
3494
{
3495
  unsigned long val;
3496
 
3497
  switch (bfd_get_mach (abfd))
3498
    {
3499
    default:
3500
    case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3501
    case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3502
    case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3503
    }
3504
 
3505
  elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3506
  elf_elfheader (abfd)->e_flags |= val;
3507
}
3508
 
3509
/* Function to keep M32R specific file flags.  */
3510
 
3511
static bfd_boolean
3512
m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3513
{
3514
  BFD_ASSERT (!elf_flags_init (abfd)
3515
              || elf_elfheader (abfd)->e_flags == flags);
3516
 
3517
  elf_elfheader (abfd)->e_flags = flags;
3518
  elf_flags_init (abfd) = TRUE;
3519
  return TRUE;
3520
}
3521
 
3522
/* Merge backend specific data from an object file to the output
3523
   object file when linking.  */
3524
 
3525
static bfd_boolean
3526
m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3527
{
3528
  flagword out_flags;
3529
  flagword in_flags;
3530
 
3531
  if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3532
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3533
    return TRUE;
3534
 
3535
  in_flags  = elf_elfheader (ibfd)->e_flags;
3536
  out_flags = elf_elfheader (obfd)->e_flags;
3537
 
3538
  if (! elf_flags_init (obfd))
3539
    {
3540
      /* If the input is the default architecture then do not
3541
         bother setting the flags for the output architecture,
3542
         instead allow future merges to do this.  If no future
3543
         merges ever set these flags then they will retain their
3544
         unitialised values, which surprise surprise, correspond
3545
         to the default values.  */
3546
      if (bfd_get_arch_info (ibfd)->the_default)
3547
        return TRUE;
3548
 
3549
      elf_flags_init (obfd) = TRUE;
3550
      elf_elfheader (obfd)->e_flags = in_flags;
3551
 
3552
      if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3553
          && bfd_get_arch_info (obfd)->the_default)
3554
        return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3555
                                  bfd_get_mach (ibfd));
3556
 
3557
      return TRUE;
3558
    }
3559
 
3560
  /* Check flag compatibility.  */
3561
  if (in_flags == out_flags)
3562
    return TRUE;
3563
 
3564
  if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3565
    {
3566
      if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3567
          || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3568
          || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3569
        {
3570
          (*_bfd_error_handler)
3571
            (_("%B: Instruction set mismatch with previous modules"), ibfd);
3572
 
3573
          bfd_set_error (bfd_error_bad_value);
3574
          return FALSE;
3575
        }
3576
    }
3577
 
3578
  return TRUE;
3579
}
3580
 
3581
/* Display the flags field.  */
3582
 
3583
static bfd_boolean
3584
m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3585
{
3586
  FILE * file = (FILE *) ptr;
3587
 
3588
  BFD_ASSERT (abfd != NULL && ptr != NULL);
3589
 
3590
  _bfd_elf_print_private_bfd_data (abfd, ptr);
3591
 
3592
  fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3593
 
3594
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3595
    {
3596
    default:
3597
    case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3598
    case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3599
    case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3600
    }
3601
 
3602
  fputc ('\n', file);
3603
 
3604
  return TRUE;
3605
}
3606
 
3607
static asection *
3608
m32r_elf_gc_mark_hook (asection *sec,
3609
                       struct bfd_link_info *info,
3610
                       Elf_Internal_Rela *rel,
3611
                       struct elf_link_hash_entry *h,
3612
                       Elf_Internal_Sym *sym)
3613
{
3614
  if (h != NULL)
3615
    switch (ELF32_R_TYPE (rel->r_info))
3616
      {
3617
      case R_M32R_GNU_VTINHERIT:
3618
      case R_M32R_GNU_VTENTRY:
3619
      case R_M32R_RELA_GNU_VTINHERIT:
3620
      case R_M32R_RELA_GNU_VTENTRY:
3621
        return NULL;
3622
      }
3623
 
3624
  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3625
}
3626
 
3627
static bfd_boolean
3628
m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3629
                        struct bfd_link_info *info ATTRIBUTE_UNUSED,
3630
                        asection *sec ATTRIBUTE_UNUSED,
3631
                        const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3632
{
3633
  /* Update the got entry reference counts for the section being removed.  */
3634
  Elf_Internal_Shdr *symtab_hdr;
3635
  struct elf_link_hash_entry **sym_hashes;
3636
  bfd_signed_vma *local_got_refcounts;
3637
  const Elf_Internal_Rela *rel, *relend;
3638
 
3639
  if (info->relocatable)
3640
    return TRUE;
3641
 
3642
  elf_section_data (sec)->local_dynrel = NULL;
3643
 
3644
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3645
  sym_hashes = elf_sym_hashes (abfd);
3646
  local_got_refcounts = elf_local_got_refcounts (abfd);
3647
 
3648
  relend = relocs + sec->reloc_count;
3649
  for (rel = relocs; rel < relend; rel++)
3650
    {
3651
      unsigned long r_symndx;
3652
      struct elf_link_hash_entry *h = NULL;
3653
 
3654
      r_symndx = ELF32_R_SYM (rel->r_info);
3655
      if (r_symndx >= symtab_hdr->sh_info)
3656
        {
3657
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3658
          while (h->root.type == bfd_link_hash_indirect
3659
                 || h->root.type == bfd_link_hash_warning)
3660
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3661
        }
3662
 
3663
      switch (ELF32_R_TYPE (rel->r_info))
3664
        {
3665
        case R_M32R_GOT16_HI_ULO:
3666
        case R_M32R_GOT16_HI_SLO:
3667
        case R_M32R_GOT16_LO:
3668
        case R_M32R_GOTOFF:
3669
        case R_M32R_GOTOFF_HI_ULO:
3670
        case R_M32R_GOTOFF_HI_SLO:
3671
        case R_M32R_GOTOFF_LO:
3672
        case R_M32R_GOT24:
3673
        case R_M32R_GOTPC_HI_ULO:
3674
        case R_M32R_GOTPC_HI_SLO:
3675
        case R_M32R_GOTPC_LO:
3676
        case R_M32R_GOTPC24:
3677
          if (h != NULL)
3678
            {
3679
              if (h->got.refcount > 0)
3680
                h->got.refcount--;
3681
            }
3682
          else
3683
            {
3684
              if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3685
                local_got_refcounts[r_symndx]--;
3686
            }
3687
          break;
3688
 
3689
        case R_M32R_16_RELA:
3690
        case R_M32R_24_RELA:
3691
        case R_M32R_32_RELA:
3692
        case R_M32R_REL32:
3693
        case R_M32R_HI16_ULO_RELA:
3694
        case R_M32R_HI16_SLO_RELA:
3695
        case R_M32R_LO16_RELA:
3696
        case R_M32R_SDA16_RELA:
3697
        case R_M32R_10_PCREL_RELA:
3698
        case R_M32R_18_PCREL_RELA:
3699
        case R_M32R_26_PCREL_RELA:
3700
          if (h != NULL)
3701
            {
3702
              struct elf_m32r_link_hash_entry *eh;
3703
              struct elf_m32r_dyn_relocs **pp;
3704
              struct elf_m32r_dyn_relocs *p;
3705
 
3706
              if (!info->shared && h->plt.refcount > 0)
3707
                h->plt.refcount -= 1;
3708
 
3709
              eh = (struct elf_m32r_link_hash_entry *) h;
3710
 
3711
              for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3712
                if (p->sec == sec)
3713
                  {
3714
                    if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3715
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3716
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3717
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3718
                      p->pc_count -= 1;
3719
                    p->count -= 1;
3720
                    if (p->count == 0)
3721
                      *pp = p->next;
3722
                    break;
3723
                  }
3724
            }
3725
          break;
3726
 
3727
        case R_M32R_26_PLTREL:
3728
          if (h != NULL)
3729
            {
3730
              if (h->plt.refcount > 0)
3731
                h->plt.refcount--;
3732
            }
3733
          break;
3734
 
3735
        default:
3736
          break;
3737
        }
3738
    }
3739
 
3740
  return TRUE;
3741
}
3742
 
3743
/* Look through the relocs for a section during the first phase.
3744
   Since we don't do .gots or .plts, we just need to consider the
3745
   virtual table relocs for gc.  */
3746
 
3747
static bfd_boolean
3748
m32r_elf_check_relocs (bfd *abfd,
3749
                       struct bfd_link_info *info,
3750
                       asection *sec,
3751
                       const Elf_Internal_Rela *relocs)
3752
{
3753
  Elf_Internal_Shdr *symtab_hdr;
3754
  struct elf_link_hash_entry **sym_hashes;
3755
  const Elf_Internal_Rela *rel;
3756
  const Elf_Internal_Rela *rel_end;
3757
  struct elf_m32r_link_hash_table *htab;
3758
  bfd *dynobj;
3759
  asection *sreloc;
3760
 
3761
  if (info->relocatable)
3762
    return TRUE;
3763
 
3764
  sreloc = NULL;
3765
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3766
  sym_hashes = elf_sym_hashes (abfd);
3767
 
3768
  htab = m32r_elf_hash_table (info);
3769
  if (htab == NULL)
3770
    return FALSE;
3771
 
3772
  dynobj = htab->root.dynobj;
3773
 
3774
  rel_end = relocs + sec->reloc_count;
3775
  for (rel = relocs; rel < rel_end; rel++)
3776
    {
3777
      int r_type;
3778
      struct elf_link_hash_entry *h;
3779
      unsigned long r_symndx;
3780
 
3781
      r_symndx = ELF32_R_SYM (rel->r_info);
3782
      r_type = ELF32_R_TYPE (rel->r_info);
3783
      if (r_symndx < symtab_hdr->sh_info)
3784
        h = NULL;
3785
      else
3786
        {
3787
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3788
          while (h->root.type == bfd_link_hash_indirect
3789
                 || h->root.type == bfd_link_hash_warning)
3790
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3791
        }
3792
 
3793
      /* Some relocs require a global offset table.  */
3794
      if (htab->sgot == NULL)
3795
        {
3796
          switch (r_type)
3797
            {
3798
            case R_M32R_GOT16_HI_ULO:
3799
            case R_M32R_GOT16_HI_SLO:
3800
            case R_M32R_GOTOFF:
3801
            case R_M32R_GOTOFF_HI_ULO:
3802
            case R_M32R_GOTOFF_HI_SLO:
3803
            case R_M32R_GOTOFF_LO:
3804
            case R_M32R_GOT16_LO:
3805
            case R_M32R_GOTPC24:
3806
            case R_M32R_GOTPC_HI_ULO:
3807
            case R_M32R_GOTPC_HI_SLO:
3808
            case R_M32R_GOTPC_LO:
3809
            case R_M32R_GOT24:
3810
              if (dynobj == NULL)
3811
                htab->root.dynobj = dynobj = abfd;
3812
              if (! create_got_section (dynobj, info))
3813
                return FALSE;
3814
              break;
3815
 
3816
            default:
3817
              break;
3818
          }
3819
        }
3820
 
3821
      switch (r_type)
3822
        {
3823
        case R_M32R_GOT16_HI_ULO:
3824
        case R_M32R_GOT16_HI_SLO:
3825
        case R_M32R_GOT16_LO:
3826
        case R_M32R_GOT24:
3827
 
3828
          if (h != NULL)
3829
            h->got.refcount += 1;
3830
          else
3831
            {
3832
              bfd_signed_vma *local_got_refcounts;
3833
 
3834
              /* This is a global offset table entry for a local
3835
                 symbol.  */
3836
              local_got_refcounts = elf_local_got_refcounts (abfd);
3837
              if (local_got_refcounts == NULL)
3838
                {
3839
                  bfd_size_type size;
3840
 
3841
                  size = symtab_hdr->sh_info;
3842
                  size *= sizeof (bfd_signed_vma);
3843
                  local_got_refcounts = bfd_zalloc (abfd, size);
3844
                  if (local_got_refcounts == NULL)
3845
                    return FALSE;
3846
                  elf_local_got_refcounts (abfd) = local_got_refcounts;
3847
                }
3848
              local_got_refcounts[r_symndx] += 1;
3849
            }
3850
          break;
3851
 
3852
        case R_M32R_26_PLTREL:
3853
          /* This symbol requires a procedure linkage table entry.  We
3854
             actually build the entry in adjust_dynamic_symbol,
3855
             because this might be a case of linking PIC code without
3856
             linking in any dynamic objects, in which case we don't
3857
             need to generate a procedure linkage table after all.  */
3858
 
3859
          /* If this is a local symbol, we resolve it directly without
3860
             creating a procedure linkage table entry.  */
3861
          if (h == NULL)
3862
            continue;
3863
 
3864
          if (h->forced_local)
3865
            break;
3866
 
3867
          h->needs_plt = 1;
3868
          h->plt.refcount += 1;
3869
          break;
3870
 
3871
        case R_M32R_16_RELA:
3872
        case R_M32R_24_RELA:
3873
        case R_M32R_32_RELA:
3874
        case R_M32R_REL32:
3875
        case R_M32R_HI16_ULO_RELA:
3876
        case R_M32R_HI16_SLO_RELA:
3877
        case R_M32R_LO16_RELA:
3878
        case R_M32R_SDA16_RELA:
3879
        case R_M32R_10_PCREL_RELA:
3880
        case R_M32R_18_PCREL_RELA:
3881
        case R_M32R_26_PCREL_RELA:
3882
 
3883
          if (h != NULL && !info->shared)
3884
            {
3885
              h->non_got_ref = 1;
3886
              h->plt.refcount += 1;
3887
            }
3888
 
3889
          /* If we are creating a shared library, and this is a reloc
3890
             against a global symbol, or a non PC relative reloc
3891
             against a local symbol, then we need to copy the reloc
3892
             into the shared library.  However, if we are linking with
3893
             -Bsymbolic, we do not need to copy a reloc against a
3894
             global symbol which is defined in an object we are
3895
             including in the link (i.e., DEF_REGULAR is set).  At
3896
             this point we have not seen all the input files, so it is
3897
             possible that DEF_REGULAR is not set now but will be set
3898
             later (it is never cleared).  We account for that
3899
             possibility below by storing information in the
3900
             dyn_relocs field of the hash table entry. A similar
3901
             situation occurs when creating shared libraries and symbol
3902
             visibility changes render the symbol local.
3903
 
3904
             If on the other hand, we are creating an executable, we
3905
             may need to keep relocations for symbols satisfied by a
3906
             dynamic library if we manage to avoid copy relocs for the
3907
             symbol.  */
3908
          if ((info->shared
3909
               && (sec->flags & SEC_ALLOC) != 0
3910
               && ((   r_type != R_M32R_26_PCREL_RELA
3911
                    && r_type != R_M32R_18_PCREL_RELA
3912
                    && r_type != R_M32R_10_PCREL_RELA
3913
                    && r_type != R_M32R_REL32)
3914
                   || (h != NULL
3915
                       && (! info->symbolic
3916
                           || h->root.type == bfd_link_hash_defweak
3917
                           || !h->def_regular))))
3918
              || (!info->shared
3919
                  && (sec->flags & SEC_ALLOC) != 0
3920
                  && h != NULL
3921
                  && (h->root.type == bfd_link_hash_defweak
3922
                      || !h->def_regular)))
3923
            {
3924
              struct elf_m32r_dyn_relocs *p;
3925
              struct elf_m32r_dyn_relocs **head;
3926
 
3927
              if (dynobj == NULL)
3928
                htab->root.dynobj = dynobj = abfd;
3929
 
3930
              /* When creating a shared object, we must copy these
3931
                 relocs into the output file.  We create a reloc
3932
                 section in dynobj and make room for the reloc.  */
3933
              if (sreloc == NULL)
3934
                {
3935
                  sreloc = _bfd_elf_make_dynamic_reloc_section
3936
                    (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3937
 
3938
                  if (sreloc == NULL)
3939
                    return FALSE;
3940
                }
3941
 
3942
              /* If this is a global symbol, we count the number of
3943
                 relocations we need for this symbol.  */
3944
              if (h != NULL)
3945
                head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3946
              else
3947
                {
3948
                  /* Track dynamic relocs needed for local syms too.  */
3949
                  asection *s;
3950
                  void *vpp;
3951
                  Elf_Internal_Sym *isym;
3952
 
3953
                  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3954
                                                abfd, r_symndx);
3955
                  if (isym == NULL)
3956
                    return FALSE;
3957
 
3958
                  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3959
                  if (s == NULL)
3960
                    s = sec;
3961
 
3962
                  vpp = &elf_section_data (s)->local_dynrel;
3963
                  head = (struct elf_m32r_dyn_relocs **) vpp;
3964
                }
3965
 
3966
              p = *head;
3967
              if (p == NULL || p->sec != sec)
3968
                {
3969
                  bfd_size_type amt = sizeof (*p);
3970
 
3971
                  p = bfd_alloc (dynobj, amt);
3972
                  if (p == NULL)
3973
                    return FALSE;
3974
                  p->next = *head;
3975
                  *head = p;
3976
                  p->sec = sec;
3977
                  p->count = 0;
3978
                  p->pc_count = 0;
3979
                }
3980
 
3981
              p->count += 1;
3982
              if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3983
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3984
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3985
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3986
                p->pc_count += 1;
3987
            }
3988
          break;
3989
 
3990
        /* This relocation describes the C++ object vtable hierarchy.
3991
           Reconstruct it for later use during GC.  */
3992
        case R_M32R_RELA_GNU_VTINHERIT:
3993
        case R_M32R_GNU_VTINHERIT:
3994
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3995
            return FALSE;
3996
          break;
3997
 
3998
        /* This relocation describes which C++ vtable entries are actually
3999
           used.  Record for later use during GC.  */
4000
        case R_M32R_GNU_VTENTRY:
4001
          BFD_ASSERT (h != NULL);
4002
          if (h != NULL
4003
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
4004
            return FALSE;
4005
          break;
4006
        case R_M32R_RELA_GNU_VTENTRY:
4007
          BFD_ASSERT (h != NULL);
4008
          if (h != NULL
4009
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4010
            return FALSE;
4011
          break;
4012
        }
4013
    }
4014
 
4015
  return TRUE;
4016
}
4017
 
4018
static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4019
{
4020
  { STRING_COMMA_LEN (".sbss"),  -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
4021
  { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4022
  { NULL,                     0,  0, 0,            0 }
4023
};
4024
 
4025
static enum elf_reloc_type_class
4026
m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4027
{
4028
  switch ((int) ELF32_R_TYPE (rela->r_info))
4029
    {
4030
    case R_M32R_RELATIVE:  return reloc_class_relative;
4031
    case R_M32R_JMP_SLOT:  return reloc_class_plt;
4032
    case R_M32R_COPY:      return reloc_class_copy;
4033
    default:               return reloc_class_normal;
4034
    }
4035
}
4036
 
4037
#define ELF_ARCH                bfd_arch_m32r
4038
#define ELF_TARGET_ID           M32R_ELF_DATA
4039
#define ELF_MACHINE_CODE        EM_M32R
4040
#define ELF_MACHINE_ALT1        EM_CYGNUS_M32R
4041
#define ELF_MAXPAGESIZE         0x1 /* Explicitly requested by Mitsubishi.  */
4042
 
4043
#define TARGET_BIG_SYM          bfd_elf32_m32r_vec
4044
#define TARGET_BIG_NAME         "elf32-m32r"
4045
#define TARGET_LITTLE_SYM       bfd_elf32_m32rle_vec
4046
#define TARGET_LITTLE_NAME      "elf32-m32rle"
4047
 
4048
#define elf_info_to_howto                       m32r_info_to_howto
4049
#define elf_info_to_howto_rel                   m32r_info_to_howto_rel
4050
#define elf_backend_section_from_bfd_section    _bfd_m32r_elf_section_from_bfd_section
4051
#define elf_backend_symbol_processing           _bfd_m32r_elf_symbol_processing
4052
#define elf_backend_add_symbol_hook             m32r_elf_add_symbol_hook
4053
#define elf_backend_relocate_section            m32r_elf_relocate_section
4054
#define elf_backend_gc_mark_hook                m32r_elf_gc_mark_hook
4055
#define elf_backend_gc_sweep_hook               m32r_elf_gc_sweep_hook
4056
#define elf_backend_check_relocs                m32r_elf_check_relocs
4057
 
4058
#define elf_backend_create_dynamic_sections     m32r_elf_create_dynamic_sections
4059
#define bfd_elf32_bfd_link_hash_table_create    m32r_elf_link_hash_table_create
4060
#define elf_backend_size_dynamic_sections       m32r_elf_size_dynamic_sections
4061
#define elf_backend_omit_section_dynsym \
4062
  ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4063
#define elf_backend_finish_dynamic_sections     m32r_elf_finish_dynamic_sections
4064
#define elf_backend_adjust_dynamic_symbol       m32r_elf_adjust_dynamic_symbol
4065
#define elf_backend_finish_dynamic_symbol       m32r_elf_finish_dynamic_symbol
4066
#define elf_backend_reloc_type_class            m32r_elf_reloc_type_class
4067
#define elf_backend_copy_indirect_symbol        m32r_elf_copy_indirect_symbol
4068
 
4069
#define elf_backend_can_gc_sections             1
4070
/*#if !USE_REL
4071
#define elf_backend_rela_normal                 1
4072
#endif*/
4073
#define elf_backend_can_refcount 1
4074
#define elf_backend_want_got_plt 1
4075
#define elf_backend_plt_readonly 1
4076
#define elf_backend_want_plt_sym 0
4077
#define elf_backend_got_header_size 12
4078
 
4079
#define elf_backend_may_use_rel_p       1
4080
#ifdef USE_M32R_OLD_RELOC
4081
#define elf_backend_default_use_rela_p  0
4082
#define elf_backend_may_use_rela_p      0
4083
#else
4084
#define elf_backend_default_use_rela_p  1
4085
#define elf_backend_may_use_rela_p      1
4086
#endif
4087
 
4088
#define elf_backend_object_p                    m32r_elf_object_p
4089
#define elf_backend_final_write_processing      m32r_elf_final_write_processing
4090
#define bfd_elf32_bfd_merge_private_bfd_data    m32r_elf_merge_private_bfd_data
4091
#define bfd_elf32_bfd_set_private_flags         m32r_elf_set_private_flags
4092
#define bfd_elf32_bfd_print_private_bfd_data    m32r_elf_print_private_bfd_data
4093
#define elf_backend_special_sections            m32r_elf_special_sections
4094
 
4095
#include "elf32-target.h"
4096
 
4097
#undef  ELF_MAXPAGESIZE
4098
#define ELF_MAXPAGESIZE         0x1000
4099
 
4100
#undef  TARGET_BIG_SYM
4101
#define TARGET_BIG_SYM          bfd_elf32_m32rlin_vec
4102
#undef  TARGET_BIG_NAME
4103
#define TARGET_BIG_NAME         "elf32-m32r-linux"
4104
#undef  TARGET_LITTLE_SYM
4105
#define TARGET_LITTLE_SYM       bfd_elf32_m32rlelin_vec
4106
#undef  TARGET_LITTLE_NAME
4107
#define TARGET_LITTLE_NAME      "elf32-m32rle-linux"
4108
#undef  elf32_bed
4109
#define elf32_bed               elf32_m32r_lin_bed
4110
 
4111
#include "elf32-target.h"
4112
 

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