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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [bfd/] [elf32-m32r.c] - Blame information for rev 227

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1 227 jeremybenn
/* M32R-specific support for 32-bit ELF.
2
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3
   2006, 2007, 2008, 2009, 2010  Free Software Foundation, Inc.
4
 
5
   This file is part of BFD, the Binary File Descriptor library.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 3 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20
   MA 02110-1301, USA.  */
21
 
22
#include "sysdep.h"
23
#include "bfd.h"
24
#include "libbfd.h"
25
#include "elf-bfd.h"
26
#include "elf/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
  if (h->root.type == bfd_link_hash_warning)
1981
    /* When warning symbols are created, they **replace** the "real"
1982
       entry in the hash table, thus we never get to see the real
1983
       symbol in a hash traversal.  So look at it now.  */
1984
    h = (struct elf_link_hash_entry *) h->root.u.i.link;
1985
 
1986
  info = (struct bfd_link_info *) inf;
1987
  htab = m32r_elf_hash_table (info);
1988
  if (htab == NULL)
1989
    return FALSE;
1990
 
1991
  eh = (struct elf_m32r_link_hash_entry *) h;
1992
 
1993
  if (htab->root.dynamic_sections_created
1994
      && h->plt.refcount > 0)
1995
    {
1996
      /* Make sure this symbol is output as a dynamic symbol.
1997
         Undefined weak syms won't yet be marked as dynamic.  */
1998
      if (h->dynindx == -1
1999
          && !h->forced_local)
2000
        {
2001
          if (! bfd_elf_link_record_dynamic_symbol (info, h))
2002
            return FALSE;
2003
        }
2004
 
2005
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2006
        {
2007
          asection *s = htab->splt;
2008
 
2009
          /* If this is the first .plt entry, make room for the special
2010
             first entry.  */
2011
          if (s->size == 0)
2012
            s->size += PLT_ENTRY_SIZE;
2013
 
2014
          h->plt.offset = s->size;
2015
 
2016
          /* If this symbol is not defined in a regular file, and we are
2017
             not generating a shared library, then set the symbol to this
2018
             location in the .plt.  This is required to make function
2019
             pointers compare as equal between the normal executable and
2020
             the shared library.  */
2021
          if (! info->shared
2022
              && !h->def_regular)
2023
            {
2024
              h->root.u.def.section = s;
2025
              h->root.u.def.value = h->plt.offset;
2026
            }
2027
 
2028
          /* Make room for this entry.  */
2029
          s->size += PLT_ENTRY_SIZE;
2030
 
2031
          /* We also need to make an entry in the .got.plt section, which
2032
             will be placed in the .got section by the linker script.  */
2033
          htab->sgotplt->size += 4;
2034
 
2035
          /* We also need to make an entry in the .rel.plt section.  */
2036
          htab->srelplt->size += sizeof (Elf32_External_Rela);
2037
        }
2038
      else
2039
        {
2040
          h->plt.offset = (bfd_vma) -1;
2041
          h->needs_plt = 0;
2042
        }
2043
    }
2044
  else
2045
    {
2046
      h->plt.offset = (bfd_vma) -1;
2047
      h->needs_plt = 0;
2048
    }
2049
 
2050
  if (h->got.refcount > 0)
2051
    {
2052
      asection *s;
2053
      bfd_boolean dyn;
2054
 
2055
      /* Make sure this symbol is output as a dynamic symbol.
2056
         Undefined weak syms won't yet be marked as dynamic.  */
2057
      if (h->dynindx == -1
2058
          && !h->forced_local)
2059
        {
2060
          if (! bfd_elf_link_record_dynamic_symbol (info, h))
2061
            return FALSE;
2062
        }
2063
 
2064
      s = htab->sgot;
2065
 
2066
      h->got.offset = s->size;
2067
      s->size += 4;
2068
      dyn = htab->root.dynamic_sections_created;
2069
      if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2070
        htab->srelgot->size += sizeof (Elf32_External_Rela);
2071
    }
2072
  else
2073
    h->got.offset = (bfd_vma) -1;
2074
 
2075
  if (eh->dyn_relocs == NULL)
2076
    return TRUE;
2077
 
2078
  /* In the shared -Bsymbolic case, discard space allocated for
2079
     dynamic pc-relative relocs against symbols which turn out to be
2080
     defined in regular objects.  For the normal shared case, discard
2081
     space for pc-relative relocs that have become local due to symbol
2082
     visibility changes.  */
2083
 
2084
  if (info->shared)
2085
    {
2086
      if (h->def_regular
2087
          && (h->forced_local
2088
              || info->symbolic))
2089
        {
2090
          struct elf_m32r_dyn_relocs **pp;
2091
 
2092
          for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2093
            {
2094
              p->count -= p->pc_count;
2095
              p->pc_count = 0;
2096
              if (p->count == 0)
2097
                *pp = p->next;
2098
              else
2099
                pp = &p->next;
2100
            }
2101
        }
2102
 
2103
      /* Also discard relocs on undefined weak syms with non-default
2104
         visibility.  */
2105
      if (eh->dyn_relocs != NULL
2106
          && h->root.type == bfd_link_hash_undefweak)
2107
        {
2108
          if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2109
            eh->dyn_relocs = NULL;
2110
 
2111
          /* Make sure undefined weak symbols are output as a dynamic
2112
             symbol in PIEs.  */
2113
          else if (h->dynindx == -1
2114
                   && !h->forced_local)
2115
            {
2116
              if (! bfd_elf_link_record_dynamic_symbol (info, h))
2117
                return FALSE;
2118
            }
2119
        }
2120
    }
2121
  else
2122
    {
2123
      /* For the non-shared case, discard space for relocs against
2124
         symbols which turn out to need copy relocs or are not
2125
         dynamic.  */
2126
 
2127
      if (!h->non_got_ref
2128
          && ((h->def_dynamic
2129
               && !h->def_regular)
2130
              || (htab->root.dynamic_sections_created
2131
                  && (h->root.type == bfd_link_hash_undefweak
2132
                      || h->root.type == bfd_link_hash_undefined))))
2133
        {
2134
          /* Make sure this symbol is output as a dynamic symbol.
2135
             Undefined weak syms won't yet be marked as dynamic.  */
2136
          if (h->dynindx == -1
2137
              && !h->forced_local)
2138
            {
2139
              if (! bfd_elf_link_record_dynamic_symbol (info, h))
2140
                return FALSE;
2141
            }
2142
 
2143
          /* If that succeeded, we know we'll be keeping all the
2144
             relocs.  */
2145
          if (h->dynindx != -1)
2146
            goto keep;
2147
        }
2148
 
2149
      eh->dyn_relocs = NULL;
2150
 
2151
    keep: ;
2152
    }
2153
 
2154
  /* Finally, allocate space.  */
2155
  for (p = eh->dyn_relocs; p != NULL; p = p->next)
2156
    {
2157
      asection *sreloc = elf_section_data (p->sec)->sreloc;
2158
      sreloc->size += p->count * sizeof (Elf32_External_Rela);
2159
    }
2160
 
2161
  return TRUE;
2162
}
2163
 
2164
/* Find any dynamic relocs that apply to read-only sections.  */
2165
 
2166
static bfd_boolean
2167
readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2168
{
2169
  struct elf_m32r_link_hash_entry *eh;
2170
  struct elf_m32r_dyn_relocs *p;
2171
 
2172
  if (h->root.type == bfd_link_hash_warning)
2173
    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2174
 
2175
  eh = (struct elf_m32r_link_hash_entry *) h;
2176
  for (p = eh->dyn_relocs; p != NULL; p = p->next)
2177
    {
2178
      asection *s = p->sec->output_section;
2179
 
2180
      if (s != NULL && (s->flags & SEC_READONLY) != 0)
2181
        {
2182
          struct bfd_link_info *info = (struct bfd_link_info *) inf;
2183
 
2184
          info->flags |= DF_TEXTREL;
2185
 
2186
          /* Not an error, just cut short the traversal.  */
2187
          return FALSE;
2188
        }
2189
    }
2190
  return TRUE;
2191
}
2192
 
2193
/* Set the sizes of the dynamic sections.  */
2194
 
2195
static bfd_boolean
2196
m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2197
                                struct bfd_link_info *info)
2198
{
2199
  struct elf_m32r_link_hash_table *htab;
2200
  bfd *dynobj;
2201
  asection *s;
2202
  bfd_boolean relocs;
2203
  bfd *ibfd;
2204
 
2205
#ifdef DEBUG_PIC
2206
  printf ("m32r_elf_size_dynamic_sections()\n");
2207
#endif
2208
 
2209
  htab = m32r_elf_hash_table (info);
2210
  if (htab == NULL)
2211
    return FALSE;
2212
 
2213
  dynobj = htab->root.dynobj;
2214
  BFD_ASSERT (dynobj != NULL);
2215
 
2216
  if (htab->root.dynamic_sections_created)
2217
    {
2218
      /* Set the contents of the .interp section to the interpreter.  */
2219
      if (info->executable)
2220
        {
2221
          s = bfd_get_section_by_name (dynobj, ".interp");
2222
          BFD_ASSERT (s != NULL);
2223
          s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2224
          s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2225
        }
2226
    }
2227
 
2228
  /* Set up .got offsets for local syms, and space for local dynamic
2229
     relocs.  */
2230
  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2231
    {
2232
      bfd_signed_vma *local_got;
2233
      bfd_signed_vma *end_local_got;
2234
      bfd_size_type locsymcount;
2235
      Elf_Internal_Shdr *symtab_hdr;
2236
      asection *srel;
2237
 
2238
      if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2239
        continue;
2240
 
2241
      for (s = ibfd->sections; s != NULL; s = s->next)
2242
        {
2243
          struct elf_m32r_dyn_relocs *p;
2244
 
2245
          for (p = ((struct elf_m32r_dyn_relocs *)
2246
                    elf_section_data (s)->local_dynrel);
2247
               p != NULL;
2248
               p = p->next)
2249
            {
2250
              if (! bfd_is_abs_section (p->sec)
2251
                  && bfd_is_abs_section (p->sec->output_section))
2252
                {
2253
                  /* Input section has been discarded, either because
2254
                     it is a copy of a linkonce section or due to
2255
                     linker script /DISCARD/, so we'll be discarding
2256
                     the relocs too.  */
2257
                }
2258
              else if (p->count != 0)
2259
                {
2260
                  srel = elf_section_data (p->sec)->sreloc;
2261
                  srel->size += p->count * sizeof (Elf32_External_Rela);
2262
                  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2263
                    info->flags |= DF_TEXTREL;
2264
                }
2265
            }
2266
        }
2267
 
2268
      local_got = elf_local_got_refcounts (ibfd);
2269
      if (!local_got)
2270
        continue;
2271
 
2272
      symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2273
      locsymcount = symtab_hdr->sh_info;
2274
      end_local_got = local_got + locsymcount;
2275
      s = htab->sgot;
2276
      srel = htab->srelgot;
2277
      for (; local_got < end_local_got; ++local_got)
2278
        {
2279
          if (*local_got > 0)
2280
            {
2281
              *local_got = s->size;
2282
              s->size += 4;
2283
              if (info->shared)
2284
                srel->size += sizeof (Elf32_External_Rela);
2285
            }
2286
          else
2287
            *local_got = (bfd_vma) -1;
2288
        }
2289
    }
2290
 
2291
  /* Allocate global sym .plt and .got entries, and space for global
2292
     sym dynamic relocs.  */
2293
  elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2294
 
2295
  /* We now have determined the sizes of the various dynamic sections.
2296
     Allocate memory for them.  */
2297
  relocs = FALSE;
2298
  for (s = dynobj->sections; s != NULL; s = s->next)
2299
    {
2300
      if ((s->flags & SEC_LINKER_CREATED) == 0)
2301
        continue;
2302
 
2303
      if (s == htab->splt
2304
          || s == htab->sgot
2305
          || s == htab->sgotplt
2306
          || s == htab->sdynbss)
2307
        {
2308
          /* Strip this section if we don't need it; see the
2309
             comment below.  */
2310
        }
2311
      else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2312
        {
2313
          if (s->size != 0 && s != htab->srelplt)
2314
            relocs = TRUE;
2315
 
2316
          /* We use the reloc_count field as a counter if we need
2317
             to copy relocs into the output file.  */
2318
          s->reloc_count = 0;
2319
        }
2320
      else
2321
        /* It's not one of our sections, so don't allocate space.  */
2322
        continue;
2323
 
2324
      if (s->size == 0)
2325
        {
2326
          /* If we don't need this section, strip it from the
2327
             output file.  This is mostly to handle .rela.bss and
2328
             .rela.plt.  We must create both sections in
2329
             create_dynamic_sections, because they must be created
2330
             before the linker maps input sections to output
2331
             sections.  The linker does that before
2332
             adjust_dynamic_symbol is called, and it is that
2333
             function which decides whether anything needs to go
2334
             into these sections.  */
2335
          s->flags |= SEC_EXCLUDE;
2336
          continue;
2337
        }
2338
 
2339
      if ((s->flags & SEC_HAS_CONTENTS) == 0)
2340
        continue;
2341
 
2342
      /* Allocate memory for the section contents.  We use bfd_zalloc
2343
         here in case unused entries are not reclaimed before the
2344
         section's contents are written out.  This should not happen,
2345
         but this way if it does, we get a R_M32R_NONE reloc instead
2346
         of garbage.  */
2347
      s->contents = bfd_zalloc (dynobj, s->size);
2348
      if (s->contents == NULL)
2349
        return FALSE;
2350
    }
2351
 
2352
  if (htab->root.dynamic_sections_created)
2353
    {
2354
      /* Add some entries to the .dynamic section.  We fill in the
2355
         values later, in m32r_elf_finish_dynamic_sections, but we
2356
         must add the entries now so that we get the correct size for
2357
         the .dynamic section.  The DT_DEBUG entry is filled in by the
2358
         dynamic linker and used by the debugger.  */
2359
#define add_dynamic_entry(TAG, VAL) \
2360
  _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2361
 
2362
     if (info->executable)
2363
        {
2364
          if (! add_dynamic_entry (DT_DEBUG, 0))
2365
            return FALSE;
2366
        }
2367
 
2368
      if (htab->splt->size != 0)
2369
        {
2370
          if (! add_dynamic_entry (DT_PLTGOT, 0)
2371
              || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2372
              || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2373
              || ! add_dynamic_entry (DT_JMPREL, 0))
2374
            return FALSE;
2375
        }
2376
 
2377
      if (relocs)
2378
        {
2379
          if (! add_dynamic_entry (DT_RELA, 0)
2380
              || ! add_dynamic_entry (DT_RELASZ, 0)
2381
              || ! add_dynamic_entry (DT_RELAENT,
2382
                                      sizeof (Elf32_External_Rela)))
2383
            return FALSE;
2384
 
2385
          /* If any dynamic relocs apply to a read-only section,
2386
             then we need a DT_TEXTREL entry.  */
2387
          if ((info->flags & DF_TEXTREL) == 0)
2388
            elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2389
                                    info);
2390
 
2391
          if ((info->flags & DF_TEXTREL) != 0)
2392
            {
2393
              if (! add_dynamic_entry (DT_TEXTREL, 0))
2394
                return FALSE;
2395
            }
2396
        }
2397
    }
2398
#undef add_dynamic_entry
2399
 
2400
  return TRUE;
2401
}
2402
 
2403
/* Relocate an M32R/D ELF section.
2404
   There is some attempt to make this function usable for many architectures,
2405
   both for RELA and REL type relocs, if only to serve as a learning tool.
2406
 
2407
   The RELOCATE_SECTION function is called by the new ELF backend linker
2408
   to handle the relocations for a section.
2409
 
2410
   The relocs are always passed as Rela structures; if the section
2411
   actually uses Rel structures, the r_addend field will always be
2412
   zero.
2413
 
2414
   This function is responsible for adjust the section contents as
2415
   necessary, and (if using Rela relocs and generating a
2416
   relocatable output file) adjusting the reloc addend as
2417
   necessary.
2418
 
2419
   This function does not have to worry about setting the reloc
2420
   address or the reloc symbol index.
2421
 
2422
   LOCAL_SYMS is a pointer to the swapped in local symbols.
2423
 
2424
   LOCAL_SECTIONS is an array giving the section in the input file
2425
   corresponding to the st_shndx field of each local symbol.
2426
 
2427
   The global hash table entry for the global symbols can be found
2428
   via elf_sym_hashes (input_bfd).
2429
 
2430
   When generating relocatable output, this function must handle
2431
   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2432
   going to be the section symbol corresponding to the output
2433
   section, which means that the addend must be adjusted
2434
   accordingly.  */
2435
 
2436
static bfd_boolean
2437
m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2438
                           struct bfd_link_info *info,
2439
                           bfd *input_bfd,
2440
                           asection *input_section,
2441
                           bfd_byte *contents,
2442
                           Elf_Internal_Rela *relocs,
2443
                           Elf_Internal_Sym *local_syms,
2444
                           asection **local_sections)
2445
{
2446
  Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2447
  struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2448
  Elf_Internal_Rela *rel, *relend;
2449
  /* Assume success.  */
2450
  bfd_boolean ret = TRUE;
2451
  struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2452
  bfd *dynobj;
2453
  bfd_vma *local_got_offsets;
2454
  asection *sgot, *splt, *sreloc;
2455
  bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2456
 
2457
  if (htab == NULL)
2458
    return FALSE;
2459
 
2460
  dynobj = htab->root.dynobj;
2461
  local_got_offsets = elf_local_got_offsets (input_bfd);
2462
 
2463
  sgot = htab->sgot;
2464
  splt = htab->splt;
2465
  sreloc = NULL;
2466
 
2467
  rel = relocs;
2468
  relend = relocs + input_section->reloc_count;
2469
  for (; rel < relend; rel++)
2470
    {
2471
      int r_type;
2472
      reloc_howto_type *howto;
2473
      unsigned long r_symndx;
2474
      struct elf_link_hash_entry *h;
2475
      /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2476
         ensure it's zero (we use REL relocs, not RELA).  Therefore this
2477
         should be assigning zero to `addend', but for clarity we use
2478
         `r_addend'.  */
2479
      bfd_vma addend = rel->r_addend;
2480
      bfd_vma offset = rel->r_offset;
2481
      bfd_vma relocation;
2482
      Elf_Internal_Sym *sym;
2483
      asection *sec;
2484
      const char *sym_name;
2485
      bfd_reloc_status_type r;
2486
      const char *errmsg = NULL;
2487
      bfd_boolean use_rel = FALSE;
2488
 
2489
      h = NULL;
2490
      r_type = ELF32_R_TYPE (rel->r_info);
2491
      if (r_type < 0 || r_type >= (int) R_M32R_max)
2492
        {
2493
          (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2494
                                 input_bfd,
2495
                                 (int) r_type);
2496
          bfd_set_error (bfd_error_bad_value);
2497
          ret = FALSE;
2498
          continue;
2499
        }
2500
 
2501
      if (   r_type == R_M32R_GNU_VTENTRY
2502
          || r_type == R_M32R_GNU_VTINHERIT
2503
          || r_type == R_M32R_NONE
2504
          || r_type == R_M32R_RELA_GNU_VTENTRY
2505
          || r_type == R_M32R_RELA_GNU_VTINHERIT)
2506
        continue;
2507
 
2508
      if (r_type <= R_M32R_GNU_VTENTRY)
2509
        use_rel = TRUE;
2510
 
2511
      howto = m32r_elf_howto_table + r_type;
2512
      r_symndx = ELF32_R_SYM (rel->r_info);
2513
 
2514
      sym = NULL;
2515
      sec = NULL;
2516
      h = NULL;
2517
 
2518
      if (r_symndx < symtab_hdr->sh_info)
2519
        {
2520
          /* Local symbol.  */
2521
          sym = local_syms + r_symndx;
2522
          sec = local_sections[r_symndx];
2523
          sym_name = "<local symbol>";
2524
 
2525
          if (!use_rel)
2526
            {
2527
              relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2528
              addend = rel->r_addend;
2529
            }
2530
          else
2531
            {
2532
              relocation = (sec->output_section->vma
2533
                            + sec->output_offset
2534
                            + sym->st_value);
2535
            }
2536
        }
2537
      else
2538
        {
2539
          /* External symbol.  */
2540
          relocation = 0;
2541
 
2542
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2543
          while (h->root.type == bfd_link_hash_indirect
2544
                 || h->root.type == bfd_link_hash_warning)
2545
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
2546
          sym_name = h->root.root.string;
2547
 
2548
          if (h->root.type == bfd_link_hash_defined
2549
              || h->root.type == bfd_link_hash_defweak)
2550
            {
2551
              bfd_boolean dyn;
2552
              sec = h->root.u.def.section;
2553
 
2554
              dyn = htab->root.dynamic_sections_created;
2555
              sec = h->root.u.def.section;
2556
              if (r_type == R_M32R_GOTPC24
2557
                  || (r_type == R_M32R_GOTPC_HI_ULO
2558
                      || r_type == R_M32R_GOTPC_HI_SLO
2559
                      || r_type == R_M32R_GOTPC_LO)
2560
                  || (r_type == R_M32R_26_PLTREL
2561
                      && h->plt.offset != (bfd_vma) -1)
2562
                  || ((r_type == R_M32R_GOT24
2563
                       || r_type == R_M32R_GOT16_HI_ULO
2564
                       || r_type == R_M32R_GOT16_HI_SLO
2565
                       || r_type == R_M32R_GOT16_LO)
2566
                      && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2567
                                                          info->shared, h)
2568
                      && (! info->shared
2569
                          || (! info->symbolic && h->dynindx != -1)
2570
                          || !h->def_regular))
2571
                  || (info->shared
2572
                      && ((! info->symbolic && h->dynindx != -1)
2573
                          || !h->def_regular)
2574
                      && (((r_type == R_M32R_16_RELA
2575
                            || r_type == R_M32R_32_RELA
2576
                            || r_type == R_M32R_24_RELA
2577
                            || r_type == R_M32R_HI16_ULO_RELA
2578
                            || r_type == R_M32R_HI16_SLO_RELA
2579
                            || r_type == R_M32R_LO16_RELA)
2580
                           && !h->forced_local)
2581
                          || r_type == R_M32R_REL32
2582
                          || r_type == R_M32R_10_PCREL_RELA
2583
                          || r_type == R_M32R_18_PCREL_RELA
2584
                          || r_type == R_M32R_26_PCREL_RELA)
2585
                      && ((input_section->flags & SEC_ALLOC) != 0
2586
                          /* DWARF will emit R_M32R_16(24,32) relocations
2587
                             in its sections against symbols defined
2588
                             externally in shared libraries.  We can't do
2589
                             anything with them here.  */
2590
                          || ((input_section->flags & SEC_DEBUGGING) != 0
2591
                              && h->def_dynamic))))
2592
                {
2593
                  /* In these cases, we don't need the relocation
2594
                     value.  We check specially because in some
2595
                     obscure cases sec->output_section will be NULL.  */
2596
                }
2597
              else if (sec->output_section != NULL)
2598
                relocation = (h->root.u.def.value
2599
                              + sec->output_section->vma
2600
                              + sec->output_offset);
2601
              else if (!info->relocatable)
2602
                {
2603
                  (*_bfd_error_handler)
2604
                    (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2605
                     input_bfd,
2606
                     input_section,
2607
                     (long) rel->r_offset,
2608
                     howto->name,
2609
                     h->root.root.string);
2610
                }
2611
            }
2612
          else if (h->root.type == bfd_link_hash_undefweak)
2613
            ;
2614
          else if (info->unresolved_syms_in_objects == RM_IGNORE
2615
                   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2616
            ;
2617
          else if (!info->relocatable)
2618
            {
2619
              if (! ((*info->callbacks->undefined_symbol)
2620
                     (info, h->root.root.string, input_bfd,
2621
                      input_section, offset,
2622
                      (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2623
                       || ELF_ST_VISIBILITY (h->other)))))
2624
                return FALSE;
2625
            }
2626
        }
2627
 
2628
      if (sec != NULL && elf_discarded_section (sec))
2629
        {
2630
          /* For relocs against symbols from removed linkonce sections,
2631
             or sections discarded by a linker script, we just want the
2632
             section contents zeroed.  Avoid any special processing.  */
2633
          _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2634
          rel->r_info = 0;
2635
          rel->r_addend = 0;
2636
          continue;
2637
        }
2638
 
2639
      if (info->relocatable && !use_rel)
2640
        {
2641
          /* This is a relocatable link.  We don't have to change
2642
             anything, unless the reloc is against a section symbol,
2643
             in which case we have to adjust according to where the
2644
             section symbol winds up in the output section.  */
2645
          if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2646
            rel->r_addend += sec->output_offset;
2647
          continue;
2648
        }
2649
 
2650
      if (info->relocatable && use_rel)
2651
        {
2652
          /* This is a relocatable link.  We don't have to change
2653
             anything, unless the reloc is against a section symbol,
2654
             in which case we have to adjust according to where the
2655
             section symbol winds up in the output section.  */
2656
          if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2657
            continue;
2658
 
2659
          addend += sec->output_offset;
2660
 
2661
          /* If partial_inplace, we need to store any additional addend
2662
             back in the section.  */
2663
          if (! howto->partial_inplace)
2664
            continue;
2665
          /* ??? Here is a nice place to call a special_function
2666
             like handler.  */
2667
          if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2668
            r = _bfd_relocate_contents (howto, input_bfd,
2669
                                        addend, contents + offset);
2670
          else
2671
            {
2672
              Elf_Internal_Rela *lorel;
2673
 
2674
              /* We allow an arbitrary number of HI16 relocs before the
2675
                 LO16 reloc.  This permits gcc to emit the HI and LO relocs
2676
                 itself.  */
2677
              for (lorel = rel + 1;
2678
                   (lorel < relend
2679
                    && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2680
                        || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2681
                   lorel++)
2682
                continue;
2683
              if (lorel < relend
2684
                  && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2685
                {
2686
                  m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2687
                                          contents, addend);
2688
                  r = bfd_reloc_ok;
2689
                }
2690
              else
2691
                r = _bfd_relocate_contents (howto, input_bfd,
2692
                                            addend, contents + offset);
2693
            }
2694
        }
2695
      else
2696
        {
2697
          /* Sanity check the address.  */
2698
          if (offset > high_address)
2699
            {
2700
              r = bfd_reloc_outofrange;
2701
              goto check_reloc;
2702
            }
2703
 
2704
          switch ((int) r_type)
2705
            {
2706
            case R_M32R_GOTOFF:
2707
              /* Relocation is relative to the start of the global offset
2708
                 table (for ld24 rx, #uimm24). eg access at label+addend
2709
 
2710
                 ld24 rx. #label@GOTOFF + addend
2711
                 sub  rx, r12.  */
2712
 
2713
              BFD_ASSERT (sgot != NULL);
2714
 
2715
              relocation = -(relocation - sgot->output_section->vma);
2716
              rel->r_addend = -rel->r_addend;
2717
              break;
2718
 
2719
            case R_M32R_GOTOFF_HI_ULO:
2720
            case R_M32R_GOTOFF_HI_SLO:
2721
            case R_M32R_GOTOFF_LO:
2722
              BFD_ASSERT (sgot != NULL);
2723
 
2724
              relocation -= sgot->output_section->vma;
2725
 
2726
              if ((r_type == R_M32R_GOTOFF_HI_SLO)
2727
                  && ((relocation + rel->r_addend) & 0x8000))
2728
                rel->r_addend += 0x10000;
2729
              break;
2730
 
2731
            case R_M32R_GOTPC24:
2732
              /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2733
                 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2734
               */
2735
             relocation = sgot->output_section->vma;
2736
             break;
2737
 
2738
            case R_M32R_GOTPC_HI_ULO:
2739
            case R_M32R_GOTPC_HI_SLO:
2740
            case R_M32R_GOTPC_LO:
2741
              {
2742
                /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2743
                   bl .+4
2744
                   seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2745
                   or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2746
                   or
2747
                   bl .+4
2748
                   seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2749
                   add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2750
                 */
2751
                relocation = sgot->output_section->vma;
2752
                relocation -= (input_section->output_section->vma
2753
                               + input_section->output_offset
2754
                               + rel->r_offset);
2755
                if ((r_type == R_M32R_GOTPC_HI_SLO)
2756
                     && ((relocation + rel->r_addend) & 0x8000))
2757
                  rel->r_addend += 0x10000;
2758
 
2759
                break;
2760
              }
2761
            case R_M32R_GOT16_HI_ULO:
2762
            case R_M32R_GOT16_HI_SLO:
2763
            case R_M32R_GOT16_LO:
2764
              /* Fall through.  */
2765
            case R_M32R_GOT24:
2766
              /* Relocation is to the entry for this symbol in the global
2767
                 offset table.  */
2768
              BFD_ASSERT (sgot != NULL);
2769
 
2770
              if (h != NULL)
2771
                {
2772
                  bfd_boolean dyn;
2773
                  bfd_vma off;
2774
 
2775
                  off = h->got.offset;
2776
                  BFD_ASSERT (off != (bfd_vma) -1);
2777
 
2778
                  dyn = htab->root.dynamic_sections_created;
2779
                  if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2780
                      || (info->shared
2781
                          && (info->symbolic
2782
                              || h->dynindx == -1
2783
                              || h->forced_local)
2784
                          && h->def_regular))
2785
                    {
2786
                      /* This is actually a static link, or it is a
2787
                         -Bsymbolic link and the symbol is defined
2788
                         locally, or the symbol was forced to be local
2789
                         because of a version file.  We must initialize
2790
                         this entry in the global offset table.  Since the
2791
                         offset must always be a multiple of 4, we use the
2792
                         least significant bit to record whether we have
2793
                         initialized it already.
2794
 
2795
                         When doing a dynamic link, we create a .rela.got
2796
                         relocation entry to initialize the value.  This
2797
                         is done in the finish_dynamic_symbol routine.  */
2798
                      if ((off & 1) != 0)
2799
                        off &= ~1;
2800
                      else
2801
                        {
2802
                          bfd_put_32 (output_bfd, relocation,
2803
                                      sgot->contents + off);
2804
                          h->got.offset |= 1;
2805
                        }
2806
                    }
2807
 
2808
                  relocation = sgot->output_offset + off;
2809
                }
2810
              else
2811
                {
2812
                  bfd_vma off;
2813
                  bfd_byte *loc;
2814
 
2815
                  BFD_ASSERT (local_got_offsets != NULL
2816
                              && local_got_offsets[r_symndx] != (bfd_vma) -1);
2817
 
2818
                  off = local_got_offsets[r_symndx];
2819
 
2820
                  /* The offset must always be a multiple of 4.  We use
2821
                     the least significant bit to record whether we have
2822
                     already processed this entry.  */
2823
                  if ((off & 1) != 0)
2824
                    off &= ~1;
2825
                  else
2826
                    {
2827
                      bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2828
 
2829
                      if (info->shared)
2830
                        {
2831
                          asection *srelgot;
2832
                          Elf_Internal_Rela outrel;
2833
 
2834
                          /* We need to generate a R_M32R_RELATIVE reloc
2835
                             for the dynamic linker.  */
2836
                          srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2837
                          BFD_ASSERT (srelgot != NULL);
2838
 
2839
                          outrel.r_offset = (sgot->output_section->vma
2840
                                             + sgot->output_offset
2841
                                             + off);
2842
                          outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2843
                          outrel.r_addend = relocation;
2844
                          loc = srelgot->contents;
2845
                          loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2846
                          bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2847
                          ++srelgot->reloc_count;
2848
                        }
2849
 
2850
                      local_got_offsets[r_symndx] |= 1;
2851
                    }
2852
 
2853
                  relocation = sgot->output_offset + off;
2854
                }
2855
              if ((r_type == R_M32R_GOT16_HI_SLO)
2856
                  && ((relocation + rel->r_addend) & 0x8000))
2857
                rel->r_addend += 0x10000;
2858
 
2859
              break;
2860
 
2861
            case R_M32R_26_PLTREL:
2862
              /* Relocation is to the entry for this symbol in the
2863
                 procedure linkage table.  */
2864
 
2865
              /* The native assembler will generate a 26_PLTREL reloc
2866
                 for a local symbol if you assemble a call from one
2867
                 section to another when using -K pic. */
2868
              if (h == NULL)
2869
                break;
2870
 
2871
              if (h->forced_local)
2872
                break;
2873
 
2874
              if (h->plt.offset == (bfd_vma) -1)
2875
                /* We didn't make a PLT entry for this symbol.  This
2876
                   happens when statically linking PIC code, or when
2877
                   using -Bsymbolic.  */
2878
                break;
2879
 
2880
              relocation = (splt->output_section->vma
2881
                            + splt->output_offset
2882
                            + h->plt.offset);
2883
              break;
2884
 
2885
            case R_M32R_HI16_SLO_RELA:
2886
              if ((relocation + rel->r_addend) & 0x8000)
2887
                rel->r_addend += 0x10000;
2888
              /* Fall through.  */
2889
 
2890
            case R_M32R_16_RELA:
2891
            case R_M32R_24_RELA:
2892
            case R_M32R_32_RELA:
2893
            case R_M32R_REL32:
2894
            case R_M32R_10_PCREL_RELA:
2895
            case R_M32R_18_PCREL_RELA:
2896
            case R_M32R_26_PCREL_RELA:
2897
            case R_M32R_HI16_ULO_RELA:
2898
            case R_M32R_LO16_RELA:
2899
              if (info->shared
2900
                  && r_symndx != 0
2901
                  && (input_section->flags & SEC_ALLOC) != 0
2902
                  && ((   r_type != R_M32R_10_PCREL_RELA
2903
                       && r_type != R_M32R_18_PCREL_RELA
2904
                       && r_type != R_M32R_26_PCREL_RELA
2905
                       && r_type != R_M32R_REL32)
2906
                      || (h != NULL
2907
                          && h->dynindx != -1
2908
                          && (! info->symbolic
2909
                              || !h->def_regular))))
2910
                {
2911
                  Elf_Internal_Rela outrel;
2912
                  bfd_boolean skip, relocate;
2913
                  bfd_byte *loc;
2914
 
2915
                  /* When generating a shared object, these relocations
2916
                     are copied into the output file to be resolved at run
2917
                     time.  */
2918
                  if (sreloc == NULL)
2919
                    {
2920
                      sreloc = _bfd_elf_get_dynamic_reloc_section
2921
                        (input_bfd, input_section, /*rela?*/ TRUE);
2922
                      if (sreloc == NULL)
2923
                        return FALSE;
2924
                    }
2925
 
2926
                  skip = FALSE;
2927
                  relocate = FALSE;
2928
 
2929
                  outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2930
                                                             info,
2931
                                                             input_section,
2932
                                                             rel->r_offset);
2933
                  if (outrel.r_offset == (bfd_vma) -1)
2934
                    skip = TRUE;
2935
                  else if (outrel.r_offset == (bfd_vma) -2)
2936
                    skip = relocate = TRUE;
2937
                  outrel.r_offset += (input_section->output_section->vma
2938
                                      + input_section->output_offset);
2939
 
2940
                  if (skip)
2941
                    memset (&outrel, 0, sizeof outrel);
2942
                  else if (   r_type == R_M32R_10_PCREL_RELA
2943
                           || r_type == R_M32R_18_PCREL_RELA
2944
                           || r_type == R_M32R_26_PCREL_RELA
2945
                           || r_type == R_M32R_REL32)
2946
                    {
2947
                      BFD_ASSERT (h != NULL && h->dynindx != -1);
2948
                      outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2949
                      outrel.r_addend = rel->r_addend;
2950
                    }
2951
                  else
2952
                    {
2953
                    /* h->dynindx may be -1 if this symbol was marked to
2954
                       become local.  */
2955
                    if (h == NULL
2956
                        || ((info->symbolic || h->dynindx == -1)
2957
                             && h->def_regular))
2958
                      {
2959
                        relocate = TRUE;
2960
                        outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2961
                        outrel.r_addend = relocation + rel->r_addend;
2962
                      }
2963
                    else
2964
                      {
2965
                        BFD_ASSERT (h->dynindx != -1);
2966
                        outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2967
                        outrel.r_addend = relocation + rel->r_addend;
2968
                      }
2969
                    }
2970
 
2971
                  loc = sreloc->contents;
2972
                  loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2973
                  bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2974
                  ++sreloc->reloc_count;
2975
 
2976
                  /* If this reloc is against an external symbol, we do
2977
                     not want to fiddle with the addend.  Otherwise, we
2978
                     need to include the symbol value so that it becomes
2979
                     an addend for the dynamic reloc.  */
2980
                  if (! relocate)
2981
                    continue;
2982
                  break;
2983
                }
2984
              else if (r_type != R_M32R_10_PCREL_RELA)
2985
                break;
2986
              /* Fall through.  */
2987
 
2988
            case (int) R_M32R_10_PCREL :
2989
              r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2990
                                              contents, offset,
2991
                                              sec, relocation, addend);
2992
              goto check_reloc;
2993
 
2994
            case (int) R_M32R_HI16_SLO :
2995
            case (int) R_M32R_HI16_ULO :
2996
              {
2997
                Elf_Internal_Rela *lorel;
2998
 
2999
                /* We allow an arbitrary number of HI16 relocs before the
3000
                   LO16 reloc.  This permits gcc to emit the HI and LO relocs
3001
                   itself.  */
3002
                for (lorel = rel + 1;
3003
                     (lorel < relend
3004
                      && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3005
                          || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3006
                     lorel++)
3007
                  continue;
3008
                if (lorel < relend
3009
                    && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3010
                  {
3011
                    m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3012
                                            contents, relocation + addend);
3013
                    r = bfd_reloc_ok;
3014
                  }
3015
                else
3016
                  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3017
                                                contents, offset,
3018
                                                relocation, addend);
3019
              }
3020
 
3021
              goto check_reloc;
3022
 
3023
            case (int) R_M32R_SDA16_RELA:
3024
            case (int) R_M32R_SDA16 :
3025
              {
3026
                const char *name;
3027
 
3028
                BFD_ASSERT (sec != NULL);
3029
                name = bfd_get_section_name (abfd, sec);
3030
 
3031
                if (   strcmp (name, ".sdata") == 0
3032
                    || strcmp (name, ".sbss") == 0
3033
                    || strcmp (name, ".scommon") == 0)
3034
                  {
3035
                    bfd_vma sda_base;
3036
                    bfd *out_bfd = sec->output_section->owner;
3037
 
3038
                    r = m32r_elf_final_sda_base (out_bfd, info,
3039
                                                 &errmsg,
3040
                                                 &sda_base);
3041
                    if (r != bfd_reloc_ok)
3042
                      {
3043
                        ret = FALSE;
3044
                        goto check_reloc;
3045
                      }
3046
 
3047
                    /* At this point `relocation' contains the object's
3048
                       address.  */
3049
                    relocation -= sda_base;
3050
                    /* Now it contains the offset from _SDA_BASE_.  */
3051
                  }
3052
                else
3053
                  {
3054
                    (*_bfd_error_handler)
3055
                      (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3056
                       input_bfd,
3057
                       sec,
3058
                       sym_name,
3059
                       m32r_elf_howto_table[(int) r_type].name);
3060
                    /*bfd_set_error (bfd_error_bad_value); ??? why? */
3061
                    ret = FALSE;
3062
                    continue;
3063
                  }
3064
              }
3065
              /* Fall through.  */
3066
 
3067
            default : /* OLD_M32R_RELOC */
3068
 
3069
              r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3070
                                            contents, offset,
3071
                                            relocation, addend);
3072
              goto check_reloc;
3073
            }
3074
 
3075
          r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3076
                                        contents, rel->r_offset,
3077
                                        relocation, rel->r_addend);
3078
 
3079
        }
3080
 
3081
    check_reloc:
3082
 
3083
      if (r != bfd_reloc_ok)
3084
        {
3085
          /* FIXME: This should be generic enough to go in a utility.  */
3086
          const char *name;
3087
 
3088
          if (h != NULL)
3089
            name = h->root.root.string;
3090
          else
3091
            {
3092
              name = (bfd_elf_string_from_elf_section
3093
                      (input_bfd, symtab_hdr->sh_link, sym->st_name));
3094
              if (name == NULL || *name == '\0')
3095
                name = bfd_section_name (input_bfd, sec);
3096
            }
3097
 
3098
          if (errmsg != NULL)
3099
            goto common_error;
3100
 
3101
          switch (r)
3102
            {
3103
            case bfd_reloc_overflow:
3104
              if (! ((*info->callbacks->reloc_overflow)
3105
                     (info, (h ? &h->root : NULL), name, howto->name,
3106
                      (bfd_vma) 0, input_bfd, input_section, offset)))
3107
                return FALSE;
3108
              break;
3109
 
3110
            case bfd_reloc_undefined:
3111
              if (! ((*info->callbacks->undefined_symbol)
3112
                     (info, name, input_bfd, input_section,
3113
                      offset, TRUE)))
3114
                return FALSE;
3115
              break;
3116
 
3117
            case bfd_reloc_outofrange:
3118
              errmsg = _("internal error: out of range error");
3119
              goto common_error;
3120
 
3121
            case bfd_reloc_notsupported:
3122
              errmsg = _("internal error: unsupported relocation error");
3123
              goto common_error;
3124
 
3125
            case bfd_reloc_dangerous:
3126
              errmsg = _("internal error: dangerous error");
3127
              goto common_error;
3128
 
3129
            default:
3130
              errmsg = _("internal error: unknown error");
3131
              /* fall through */
3132
 
3133
            common_error:
3134
              if (!((*info->callbacks->warning)
3135
                    (info, errmsg, name, input_bfd, input_section,
3136
                     offset)))
3137
                return FALSE;
3138
              break;
3139
            }
3140
        }
3141
    }
3142
 
3143
  return ret;
3144
}
3145
 
3146
/* Finish up dynamic symbol handling.  We set the contents of various
3147
   dynamic sections here.  */
3148
 
3149
static bfd_boolean
3150
m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3151
                                struct bfd_link_info *info,
3152
                                struct elf_link_hash_entry *h,
3153
                                Elf_Internal_Sym *sym)
3154
{
3155
  struct elf_m32r_link_hash_table *htab;
3156
  bfd *dynobj;
3157
  bfd_byte *loc;
3158
 
3159
#ifdef DEBUG_PIC
3160
  printf ("m32r_elf_finish_dynamic_symbol()\n");
3161
#endif
3162
 
3163
  htab = m32r_elf_hash_table (info);
3164
  if (htab == NULL)
3165
    return FALSE;
3166
 
3167
  dynobj = htab->root.dynobj;
3168
 
3169
  if (h->plt.offset != (bfd_vma) -1)
3170
    {
3171
      asection *splt;
3172
      asection *sgot;
3173
      asection *srela;
3174
 
3175
      bfd_vma plt_index;
3176
      bfd_vma got_offset;
3177
      Elf_Internal_Rela rela;
3178
 
3179
      /* This symbol has an entry in the procedure linkage table.  Set
3180
         it up.  */
3181
 
3182
      BFD_ASSERT (h->dynindx != -1);
3183
 
3184
      splt = htab->splt;
3185
      sgot = htab->sgotplt;
3186
      srela = htab->srelplt;
3187
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3188
 
3189
      /* Get the index in the procedure linkage table which
3190
         corresponds to this symbol.  This is the index of this symbol
3191
         in all the symbols for which we are making plt entries.  The
3192
         first entry in the procedure linkage table is reserved.  */
3193
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3194
 
3195
      /* Get the offset into the .got table of the entry that
3196
        corresponds to this function.  Each .got entry is 4 bytes.
3197
        The first three are reserved.  */
3198
      got_offset = (plt_index + 3) * 4;
3199
 
3200
      /* Fill in the entry in the procedure linkage table.  */
3201
      if (! info->shared)
3202
        {
3203
          bfd_put_32 (output_bfd,
3204
              (PLT_ENTRY_WORD0b
3205
               + (((sgot->output_section->vma
3206
                    + sgot->output_offset
3207
                    + got_offset) >> 16) & 0xffff)),
3208
              splt->contents + h->plt.offset);
3209
          bfd_put_32 (output_bfd,
3210
              (PLT_ENTRY_WORD1b
3211
               + ((sgot->output_section->vma
3212
                   + sgot->output_offset
3213
                   + got_offset) & 0xffff)),
3214
              splt->contents + h->plt.offset + 4);
3215
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3216
              splt->contents + h->plt.offset + 8);
3217
          bfd_put_32 (output_bfd,
3218
              (PLT_ENTRY_WORD3
3219
               + plt_index * sizeof (Elf32_External_Rela)),
3220
              splt->contents + h->plt.offset + 12);
3221
          bfd_put_32 (output_bfd,
3222
              (PLT_ENTRY_WORD4
3223
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3224
              splt->contents + h->plt.offset + 16);
3225
        }
3226
      else
3227
        {
3228
          bfd_put_32 (output_bfd,
3229
              PLT_ENTRY_WORD0 + got_offset,
3230
              splt->contents + h->plt.offset);
3231
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3232
              splt->contents + h->plt.offset + 4);
3233
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3234
              splt->contents + h->plt.offset + 8);
3235
          bfd_put_32 (output_bfd,
3236
              (PLT_ENTRY_WORD3
3237
               + plt_index * sizeof (Elf32_External_Rela)),
3238
              splt->contents + h->plt.offset + 12);
3239
          bfd_put_32 (output_bfd,
3240
              (PLT_ENTRY_WORD4
3241
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3242
              splt->contents + h->plt.offset + 16);
3243
        }
3244
 
3245
      /* Fill in the entry in the global offset table.  */
3246
      bfd_put_32 (output_bfd,
3247
                  (splt->output_section->vma
3248
                   + splt->output_offset
3249
                   + h->plt.offset
3250
                   + 12), /* same offset */
3251
                  sgot->contents + got_offset);
3252
 
3253
      /* Fill in the entry in the .rela.plt section.  */
3254
      rela.r_offset = (sgot->output_section->vma
3255
                       + sgot->output_offset
3256
                       + got_offset);
3257
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3258
      rela.r_addend = 0;
3259
      loc = srela->contents;
3260
      loc += plt_index * sizeof (Elf32_External_Rela);
3261
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3262
 
3263
      if (!h->def_regular)
3264
        {
3265
          /* Mark the symbol as undefined, rather than as defined in
3266
             the .plt section.  Leave the value alone.  */
3267
          sym->st_shndx = SHN_UNDEF;
3268
        }
3269
    }
3270
 
3271
  if (h->got.offset != (bfd_vma) -1)
3272
    {
3273
      asection *sgot;
3274
      asection *srela;
3275
      Elf_Internal_Rela rela;
3276
 
3277
      /* This symbol has an entry in the global offset table.  Set it
3278
         up.  */
3279
 
3280
      sgot = htab->sgot;
3281
      srela = htab->srelgot;
3282
      BFD_ASSERT (sgot != NULL && srela != NULL);
3283
 
3284
      rela.r_offset = (sgot->output_section->vma
3285
                       + sgot->output_offset
3286
                       + (h->got.offset &~ 1));
3287
 
3288
      /* If this is a -Bsymbolic link, and the symbol is defined
3289
         locally, we just want to emit a RELATIVE reloc.  Likewise if
3290
         the symbol was forced to be local because of a version file.
3291
         The entry in the global offset table will already have been
3292
         initialized in the relocate_section function.  */
3293
      if (info->shared
3294
          && (info->symbolic
3295
              || h->dynindx == -1
3296
              || h->forced_local)
3297
          && h->def_regular)
3298
        {
3299
          rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3300
          rela.r_addend = (h->root.u.def.value
3301
                           + h->root.u.def.section->output_section->vma
3302
                           + h->root.u.def.section->output_offset);
3303
        }
3304
      else
3305
        {
3306
          BFD_ASSERT ((h->got.offset & 1) == 0);
3307
          bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3308
          rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3309
          rela.r_addend = 0;
3310
        }
3311
 
3312
      loc = srela->contents;
3313
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3314
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3315
      ++srela->reloc_count;
3316
    }
3317
 
3318
  if (h->needs_copy)
3319
    {
3320
      asection *s;
3321
      Elf_Internal_Rela rela;
3322
 
3323
      /* This symbols needs a copy reloc.  Set it up.  */
3324
 
3325
      BFD_ASSERT (h->dynindx != -1
3326
                  && (h->root.type == bfd_link_hash_defined
3327
                      || h->root.type == bfd_link_hash_defweak));
3328
 
3329
      s = bfd_get_section_by_name (h->root.u.def.section->owner,
3330
                                   ".rela.bss");
3331
      BFD_ASSERT (s != NULL);
3332
 
3333
      rela.r_offset = (h->root.u.def.value
3334
                       + h->root.u.def.section->output_section->vma
3335
                       + h->root.u.def.section->output_offset);
3336
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3337
      rela.r_addend = 0;
3338
      loc = s->contents;
3339
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
3340
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3341
      ++s->reloc_count;
3342
    }
3343
 
3344
  /* Mark some specially defined symbols as absolute.  */
3345
  if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3346
      || h == htab->root.hgot)
3347
    sym->st_shndx = SHN_ABS;
3348
 
3349
  return TRUE;
3350
}
3351
 
3352
 
3353
/* Finish up the dynamic sections.  */
3354
 
3355
static bfd_boolean
3356
m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3357
                                  struct bfd_link_info *info)
3358
{
3359
  struct elf_m32r_link_hash_table *htab;
3360
  bfd *dynobj;
3361
  asection *sdyn;
3362
  asection *sgot;
3363
 
3364
#ifdef DEBUG_PIC
3365
  printf ("m32r_elf_finish_dynamic_sections()\n");
3366
#endif
3367
 
3368
  htab = m32r_elf_hash_table (info);
3369
  if (htab == NULL)
3370
    return FALSE;
3371
 
3372
  dynobj = htab->root.dynobj;
3373
 
3374
  sgot = htab->sgotplt;
3375
  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3376
 
3377
  if (htab->root.dynamic_sections_created)
3378
    {
3379
      asection *splt;
3380
      Elf32_External_Dyn *dyncon, *dynconend;
3381
 
3382
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
3383
 
3384
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
3385
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3386
 
3387
      for (; dyncon < dynconend; dyncon++)
3388
        {
3389
          Elf_Internal_Dyn dyn;
3390
          const char *name;
3391
          asection *s;
3392
 
3393
          bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3394
 
3395
          switch (dyn.d_tag)
3396
            {
3397
            default:
3398
              break;
3399
 
3400
            case DT_PLTGOT:
3401
              name = ".got";
3402
              s = htab->sgot->output_section;
3403
              goto get_vma;
3404
            case DT_JMPREL:
3405
              name = ".rela.plt";
3406
              s = htab->srelplt->output_section;
3407
            get_vma:
3408
              BFD_ASSERT (s != NULL);
3409
              dyn.d_un.d_ptr = s->vma;
3410
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3411
              break;
3412
 
3413
            case DT_PLTRELSZ:
3414
              s = htab->srelplt->output_section;
3415
              BFD_ASSERT (s != NULL);
3416
              dyn.d_un.d_val = s->size;
3417
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3418
              break;
3419
 
3420
            case DT_RELASZ:
3421
              /* My reading of the SVR4 ABI indicates that the
3422
                 procedure linkage table relocs (DT_JMPREL) should be
3423
                 included in the overall relocs (DT_RELA).  This is
3424
                 what Solaris does.  However, UnixWare can not handle
3425
                 that case.  Therefore, we override the DT_RELASZ entry
3426
                 here to make it not include the JMPREL relocs.  Since
3427
                 the linker script arranges for .rela.plt to follow all
3428
                 other relocation sections, we don't have to worry
3429
                 about changing the DT_RELA entry.  */
3430
              if (htab->srelplt != NULL)
3431
                {
3432
                  s = htab->srelplt->output_section;
3433
                  dyn.d_un.d_val -= s->size;
3434
                }
3435
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3436
              break;
3437
            }
3438
        }
3439
 
3440
      /* Fill in the first entry in the procedure linkage table.  */
3441
      splt = htab->splt;
3442
      if (splt && splt->size > 0)
3443
        {
3444
          if (info->shared)
3445
            {
3446
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3447
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3448
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3449
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3450
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3451
            }
3452
          else
3453
            {
3454
              unsigned long addr;
3455
              /* addr = .got + 4 */
3456
              addr = sgot->output_section->vma + sgot->output_offset + 4;
3457
              bfd_put_32 (output_bfd,
3458
                          PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3459
                          splt->contents);
3460
              bfd_put_32 (output_bfd,
3461
                          PLT0_ENTRY_WORD1 | (addr & 0xffff),
3462
                          splt->contents + 4);
3463
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3464
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3465
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3466
            }
3467
 
3468
          elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3469
            PLT_ENTRY_SIZE;
3470
        }
3471
    }
3472
 
3473
  /* Fill in the first three entries in the global offset table.  */
3474
  if (sgot && sgot->size > 0)
3475
    {
3476
      if (sdyn == NULL)
3477
        bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3478
      else
3479
        bfd_put_32 (output_bfd,
3480
                    sdyn->output_section->vma + sdyn->output_offset,
3481
                    sgot->contents);
3482
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3483
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3484
 
3485
      elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3486
    }
3487
 
3488
  return TRUE;
3489
}
3490
 
3491
 
3492
/* Set the right machine number.  */
3493
 
3494
static bfd_boolean
3495
m32r_elf_object_p (bfd *abfd)
3496
{
3497
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3498
    {
3499
    default:
3500
    case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3501
    case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3502
    case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3503
    }
3504
  return TRUE;
3505
}
3506
 
3507
/* Store the machine number in the flags field.  */
3508
 
3509
static void
3510
m32r_elf_final_write_processing (bfd *abfd,
3511
                                 bfd_boolean linker ATTRIBUTE_UNUSED)
3512
{
3513
  unsigned long val;
3514
 
3515
  switch (bfd_get_mach (abfd))
3516
    {
3517
    default:
3518
    case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3519
    case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3520
    case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3521
    }
3522
 
3523
  elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3524
  elf_elfheader (abfd)->e_flags |= val;
3525
}
3526
 
3527
/* Function to keep M32R specific file flags.  */
3528
 
3529
static bfd_boolean
3530
m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3531
{
3532
  BFD_ASSERT (!elf_flags_init (abfd)
3533
              || elf_elfheader (abfd)->e_flags == flags);
3534
 
3535
  elf_elfheader (abfd)->e_flags = flags;
3536
  elf_flags_init (abfd) = TRUE;
3537
  return TRUE;
3538
}
3539
 
3540
/* Merge backend specific data from an object file to the output
3541
   object file when linking.  */
3542
 
3543
static bfd_boolean
3544
m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3545
{
3546
  flagword out_flags;
3547
  flagword in_flags;
3548
 
3549
  if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3550
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3551
    return TRUE;
3552
 
3553
  in_flags  = elf_elfheader (ibfd)->e_flags;
3554
  out_flags = elf_elfheader (obfd)->e_flags;
3555
 
3556
  if (! elf_flags_init (obfd))
3557
    {
3558
      /* If the input is the default architecture then do not
3559
         bother setting the flags for the output architecture,
3560
         instead allow future merges to do this.  If no future
3561
         merges ever set these flags then they will retain their
3562
         unitialised values, which surprise surprise, correspond
3563
         to the default values.  */
3564
      if (bfd_get_arch_info (ibfd)->the_default)
3565
        return TRUE;
3566
 
3567
      elf_flags_init (obfd) = TRUE;
3568
      elf_elfheader (obfd)->e_flags = in_flags;
3569
 
3570
      if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3571
          && bfd_get_arch_info (obfd)->the_default)
3572
        return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3573
                                  bfd_get_mach (ibfd));
3574
 
3575
      return TRUE;
3576
    }
3577
 
3578
  /* Check flag compatibility.  */
3579
  if (in_flags == out_flags)
3580
    return TRUE;
3581
 
3582
  if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3583
    {
3584
      if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3585
          || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3586
          || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3587
        {
3588
          (*_bfd_error_handler)
3589
            (_("%B: Instruction set mismatch with previous modules"), ibfd);
3590
 
3591
          bfd_set_error (bfd_error_bad_value);
3592
          return FALSE;
3593
        }
3594
    }
3595
 
3596
  return TRUE;
3597
}
3598
 
3599
/* Display the flags field.  */
3600
 
3601
static bfd_boolean
3602
m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3603
{
3604
  FILE * file = (FILE *) ptr;
3605
 
3606
  BFD_ASSERT (abfd != NULL && ptr != NULL);
3607
 
3608
  _bfd_elf_print_private_bfd_data (abfd, ptr);
3609
 
3610
  fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3611
 
3612
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3613
    {
3614
    default:
3615
    case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3616
    case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3617
    case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3618
    }
3619
 
3620
  fputc ('\n', file);
3621
 
3622
  return TRUE;
3623
}
3624
 
3625
static asection *
3626
m32r_elf_gc_mark_hook (asection *sec,
3627
                       struct bfd_link_info *info,
3628
                       Elf_Internal_Rela *rel,
3629
                       struct elf_link_hash_entry *h,
3630
                       Elf_Internal_Sym *sym)
3631
{
3632
  if (h != NULL)
3633
    switch (ELF32_R_TYPE (rel->r_info))
3634
      {
3635
      case R_M32R_GNU_VTINHERIT:
3636
      case R_M32R_GNU_VTENTRY:
3637
      case R_M32R_RELA_GNU_VTINHERIT:
3638
      case R_M32R_RELA_GNU_VTENTRY:
3639
        return NULL;
3640
      }
3641
 
3642
  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3643
}
3644
 
3645
static bfd_boolean
3646
m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3647
                        struct bfd_link_info *info ATTRIBUTE_UNUSED,
3648
                        asection *sec ATTRIBUTE_UNUSED,
3649
                        const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3650
{
3651
  /* Update the got entry reference counts for the section being removed.  */
3652
  Elf_Internal_Shdr *symtab_hdr;
3653
  struct elf_link_hash_entry **sym_hashes;
3654
  bfd_signed_vma *local_got_refcounts;
3655
  const Elf_Internal_Rela *rel, *relend;
3656
 
3657
  if (info->relocatable)
3658
    return TRUE;
3659
 
3660
  elf_section_data (sec)->local_dynrel = NULL;
3661
 
3662
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3663
  sym_hashes = elf_sym_hashes (abfd);
3664
  local_got_refcounts = elf_local_got_refcounts (abfd);
3665
 
3666
  relend = relocs + sec->reloc_count;
3667
  for (rel = relocs; rel < relend; rel++)
3668
    {
3669
      unsigned long r_symndx;
3670
      struct elf_link_hash_entry *h = NULL;
3671
 
3672
      r_symndx = ELF32_R_SYM (rel->r_info);
3673
      if (r_symndx >= symtab_hdr->sh_info)
3674
        {
3675
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3676
          while (h->root.type == bfd_link_hash_indirect
3677
                 || h->root.type == bfd_link_hash_warning)
3678
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3679
        }
3680
 
3681
      switch (ELF32_R_TYPE (rel->r_info))
3682
        {
3683
        case R_M32R_GOT16_HI_ULO:
3684
        case R_M32R_GOT16_HI_SLO:
3685
        case R_M32R_GOT16_LO:
3686
        case R_M32R_GOTOFF:
3687
        case R_M32R_GOTOFF_HI_ULO:
3688
        case R_M32R_GOTOFF_HI_SLO:
3689
        case R_M32R_GOTOFF_LO:
3690
        case R_M32R_GOT24:
3691
        case R_M32R_GOTPC_HI_ULO:
3692
        case R_M32R_GOTPC_HI_SLO:
3693
        case R_M32R_GOTPC_LO:
3694
        case R_M32R_GOTPC24:
3695
          if (h != NULL)
3696
            {
3697
              if (h->got.refcount > 0)
3698
                h->got.refcount--;
3699
            }
3700
          else
3701
            {
3702
              if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3703
                local_got_refcounts[r_symndx]--;
3704
            }
3705
          break;
3706
 
3707
        case R_M32R_16_RELA:
3708
        case R_M32R_24_RELA:
3709
        case R_M32R_32_RELA:
3710
        case R_M32R_REL32:
3711
        case R_M32R_HI16_ULO_RELA:
3712
        case R_M32R_HI16_SLO_RELA:
3713
        case R_M32R_LO16_RELA:
3714
        case R_M32R_SDA16_RELA:
3715
        case R_M32R_10_PCREL_RELA:
3716
        case R_M32R_18_PCREL_RELA:
3717
        case R_M32R_26_PCREL_RELA:
3718
          if (h != NULL)
3719
            {
3720
              struct elf_m32r_link_hash_entry *eh;
3721
              struct elf_m32r_dyn_relocs **pp;
3722
              struct elf_m32r_dyn_relocs *p;
3723
 
3724
              if (!info->shared && h->plt.refcount > 0)
3725
                h->plt.refcount -= 1;
3726
 
3727
              eh = (struct elf_m32r_link_hash_entry *) h;
3728
 
3729
              for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3730
                if (p->sec == sec)
3731
                  {
3732
                    if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3733
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3734
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3735
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3736
                      p->pc_count -= 1;
3737
                    p->count -= 1;
3738
                    if (p->count == 0)
3739
                      *pp = p->next;
3740
                    break;
3741
                  }
3742
            }
3743
          break;
3744
 
3745
        case R_M32R_26_PLTREL:
3746
          if (h != NULL)
3747
            {
3748
              if (h->plt.refcount > 0)
3749
                h->plt.refcount--;
3750
            }
3751
          break;
3752
 
3753
        default:
3754
          break;
3755
        }
3756
    }
3757
 
3758
  return TRUE;
3759
}
3760
 
3761
/* Look through the relocs for a section during the first phase.
3762
   Since we don't do .gots or .plts, we just need to consider the
3763
   virtual table relocs for gc.  */
3764
 
3765
static bfd_boolean
3766
m32r_elf_check_relocs (bfd *abfd,
3767
                       struct bfd_link_info *info,
3768
                       asection *sec,
3769
                       const Elf_Internal_Rela *relocs)
3770
{
3771
  Elf_Internal_Shdr *symtab_hdr;
3772
  struct elf_link_hash_entry **sym_hashes;
3773
  const Elf_Internal_Rela *rel;
3774
  const Elf_Internal_Rela *rel_end;
3775
  struct elf_m32r_link_hash_table *htab;
3776
  bfd *dynobj;
3777
  bfd_vma *local_got_offsets;
3778
  asection *sgot, *srelgot, *sreloc;
3779
 
3780
  if (info->relocatable)
3781
    return TRUE;
3782
 
3783
  sgot = srelgot = sreloc = NULL;
3784
 
3785
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3786
  sym_hashes = elf_sym_hashes (abfd);
3787
 
3788
  htab = m32r_elf_hash_table (info);
3789
  if (htab == NULL)
3790
    return FALSE;
3791
 
3792
  dynobj = htab->root.dynobj;
3793
  local_got_offsets = elf_local_got_offsets (abfd);
3794
 
3795
  rel_end = relocs + sec->reloc_count;
3796
  for (rel = relocs; rel < rel_end; rel++)
3797
    {
3798
      int r_type;
3799
      struct elf_link_hash_entry *h;
3800
      unsigned long r_symndx;
3801
 
3802
      r_symndx = ELF32_R_SYM (rel->r_info);
3803
      r_type = ELF32_R_TYPE (rel->r_info);
3804
      if (r_symndx < symtab_hdr->sh_info)
3805
        h = NULL;
3806
      else
3807
        {
3808
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3809
          while (h->root.type == bfd_link_hash_indirect
3810
                 || h->root.type == bfd_link_hash_warning)
3811
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3812
        }
3813
 
3814
      /* Some relocs require a global offset table.  */
3815
      if (htab->sgot == NULL)
3816
        {
3817
          switch (r_type)
3818
            {
3819
            case R_M32R_GOT16_HI_ULO:
3820
            case R_M32R_GOT16_HI_SLO:
3821
            case R_M32R_GOTOFF:
3822
            case R_M32R_GOTOFF_HI_ULO:
3823
            case R_M32R_GOTOFF_HI_SLO:
3824
            case R_M32R_GOTOFF_LO:
3825
            case R_M32R_GOT16_LO:
3826
            case R_M32R_GOTPC24:
3827
            case R_M32R_GOTPC_HI_ULO:
3828
            case R_M32R_GOTPC_HI_SLO:
3829
            case R_M32R_GOTPC_LO:
3830
            case R_M32R_GOT24:
3831
              if (dynobj == NULL)
3832
                htab->root.dynobj = dynobj = abfd;
3833
              if (! create_got_section (dynobj, info))
3834
                return FALSE;
3835
              break;
3836
 
3837
            default:
3838
              break;
3839
          }
3840
        }
3841
 
3842
      switch (r_type)
3843
        {
3844
        case R_M32R_GOT16_HI_ULO:
3845
        case R_M32R_GOT16_HI_SLO:
3846
        case R_M32R_GOT16_LO:
3847
        case R_M32R_GOT24:
3848
 
3849
          if (h != NULL)
3850
            h->got.refcount += 1;
3851
          else
3852
            {
3853
              bfd_signed_vma *local_got_refcounts;
3854
 
3855
              /* This is a global offset table entry for a local
3856
                 symbol.  */
3857
              local_got_refcounts = elf_local_got_refcounts (abfd);
3858
              if (local_got_refcounts == NULL)
3859
                {
3860
                  bfd_size_type size;
3861
 
3862
                  size = symtab_hdr->sh_info;
3863
                  size *= sizeof (bfd_signed_vma);
3864
                  local_got_refcounts = bfd_zalloc (abfd, size);
3865
                  if (local_got_refcounts == NULL)
3866
                    return FALSE;
3867
                  elf_local_got_refcounts (abfd) = local_got_refcounts;
3868
                }
3869
              local_got_refcounts[r_symndx] += 1;
3870
            }
3871
          break;
3872
 
3873
        case R_M32R_26_PLTREL:
3874
          /* This symbol requires a procedure linkage table entry.  We
3875
             actually build the entry in adjust_dynamic_symbol,
3876
             because this might be a case of linking PIC code without
3877
             linking in any dynamic objects, in which case we don't
3878
             need to generate a procedure linkage table after all.  */
3879
 
3880
          /* If this is a local symbol, we resolve it directly without
3881
             creating a procedure linkage table entry.  */
3882
          if (h == NULL)
3883
            continue;
3884
 
3885
          if (h->forced_local)
3886
            break;
3887
 
3888
          h->needs_plt = 1;
3889
          h->plt.refcount += 1;
3890
          break;
3891
 
3892
        case R_M32R_16_RELA:
3893
        case R_M32R_24_RELA:
3894
        case R_M32R_32_RELA:
3895
        case R_M32R_REL32:
3896
        case R_M32R_HI16_ULO_RELA:
3897
        case R_M32R_HI16_SLO_RELA:
3898
        case R_M32R_LO16_RELA:
3899
        case R_M32R_SDA16_RELA:
3900
        case R_M32R_10_PCREL_RELA:
3901
        case R_M32R_18_PCREL_RELA:
3902
        case R_M32R_26_PCREL_RELA:
3903
 
3904
          if (h != NULL && !info->shared)
3905
            {
3906
              h->non_got_ref = 1;
3907
              h->plt.refcount += 1;
3908
            }
3909
 
3910
          /* If we are creating a shared library, and this is a reloc
3911
             against a global symbol, or a non PC relative reloc
3912
             against a local symbol, then we need to copy the reloc
3913
             into the shared library.  However, if we are linking with
3914
             -Bsymbolic, we do not need to copy a reloc against a
3915
             global symbol which is defined in an object we are
3916
             including in the link (i.e., DEF_REGULAR is set).  At
3917
             this point we have not seen all the input files, so it is
3918
             possible that DEF_REGULAR is not set now but will be set
3919
             later (it is never cleared).  We account for that
3920
             possibility below by storing information in the
3921
             dyn_relocs field of the hash table entry. A similar
3922
             situation occurs when creating shared libraries and symbol
3923
             visibility changes render the symbol local.
3924
 
3925
             If on the other hand, we are creating an executable, we
3926
             may need to keep relocations for symbols satisfied by a
3927
             dynamic library if we manage to avoid copy relocs for the
3928
             symbol.  */
3929
          if ((info->shared
3930
               && (sec->flags & SEC_ALLOC) != 0
3931
               && ((   r_type != R_M32R_26_PCREL_RELA
3932
                    && r_type != R_M32R_18_PCREL_RELA
3933
                    && r_type != R_M32R_10_PCREL_RELA
3934
                    && r_type != R_M32R_REL32)
3935
                   || (h != NULL
3936
                       && (! info->symbolic
3937
                           || h->root.type == bfd_link_hash_defweak
3938
                           || !h->def_regular))))
3939
              || (!info->shared
3940
                  && (sec->flags & SEC_ALLOC) != 0
3941
                  && h != NULL
3942
                  && (h->root.type == bfd_link_hash_defweak
3943
                      || !h->def_regular)))
3944
            {
3945
              struct elf_m32r_dyn_relocs *p;
3946
              struct elf_m32r_dyn_relocs **head;
3947
 
3948
              if (dynobj == NULL)
3949
                htab->root.dynobj = dynobj = abfd;
3950
 
3951
              /* When creating a shared object, we must copy these
3952
                 relocs into the output file.  We create a reloc
3953
                 section in dynobj and make room for the reloc.  */
3954
              if (sreloc == NULL)
3955
                {
3956
                  sreloc = _bfd_elf_make_dynamic_reloc_section
3957
                    (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3958
 
3959
                  if (sreloc == NULL)
3960
                    return FALSE;
3961
                }
3962
 
3963
              /* If this is a global symbol, we count the number of
3964
                 relocations we need for this symbol.  */
3965
              if (h != NULL)
3966
                head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3967
              else
3968
                {
3969
                  /* Track dynamic relocs needed for local syms too.  */
3970
                  asection *s;
3971
                  void *vpp;
3972
                  Elf_Internal_Sym *isym;
3973
 
3974
                  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3975
                                                abfd, r_symndx);
3976
                  if (isym == NULL)
3977
                    return FALSE;
3978
 
3979
                  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3980
                  if (s == NULL)
3981
                    s = sec;
3982
 
3983
                  vpp = &elf_section_data (s)->local_dynrel;
3984
                  head = (struct elf_m32r_dyn_relocs **) vpp;
3985
                }
3986
 
3987
              p = *head;
3988
              if (p == NULL || p->sec != sec)
3989
                {
3990
                  bfd_size_type amt = sizeof (*p);
3991
 
3992
                  p = bfd_alloc (dynobj, amt);
3993
                  if (p == NULL)
3994
                    return FALSE;
3995
                  p->next = *head;
3996
                  *head = p;
3997
                  p->sec = sec;
3998
                  p->count = 0;
3999
                  p->pc_count = 0;
4000
                }
4001
 
4002
              p->count += 1;
4003
              if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
4004
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
4005
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
4006
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
4007
                p->pc_count += 1;
4008
            }
4009
          break;
4010
 
4011
        /* This relocation describes the C++ object vtable hierarchy.
4012
           Reconstruct it for later use during GC.  */
4013
        case R_M32R_RELA_GNU_VTINHERIT:
4014
        case R_M32R_GNU_VTINHERIT:
4015
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4016
            return FALSE;
4017
          break;
4018
 
4019
        /* This relocation describes which C++ vtable entries are actually
4020
           used.  Record for later use during GC.  */
4021
        case R_M32R_GNU_VTENTRY:
4022
          BFD_ASSERT (h != NULL);
4023
          if (h != NULL
4024
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
4025
            return FALSE;
4026
          break;
4027
        case R_M32R_RELA_GNU_VTENTRY:
4028
          BFD_ASSERT (h != NULL);
4029
          if (h != NULL
4030
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4031
            return FALSE;
4032
          break;
4033
        }
4034
    }
4035
 
4036
  return TRUE;
4037
}
4038
 
4039
static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4040
{
4041
  { STRING_COMMA_LEN (".sbss"),  -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
4042
  { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4043
  { NULL,                     0,  0, 0,            0 }
4044
};
4045
 
4046
static bfd_boolean
4047
m32r_elf_fake_sections (bfd *abfd,
4048
                        Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4049
                        asection *sec)
4050
{
4051
  const char *name;
4052
 
4053
  name = bfd_get_section_name (abfd, sec);
4054
 
4055
  /* The generic elf_fake_sections will set up REL_HDR using the
4056
     default kind of relocations.  But, we may actually need both
4057
     kinds of relocations, so we set up the second header here.
4058
 
4059
     This is not necessary for the O32 ABI since that only uses Elf32_Rel
4060
     relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4061
     3rd Edition, p. 4-17).  It breaks the IRIX 5/6 32-bit ld, since one
4062
     of the resulting empty .rela.<section> sections starts with
4063
     sh_offset == object size, and ld doesn't allow that.  While the check
4064
     is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4065
     avoided by not emitting those useless sections in the first place.  */
4066
  if ((sec->flags & SEC_RELOC) != 0)
4067
    {
4068
      struct bfd_elf_section_data *esd;
4069
      bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4070
 
4071
      esd = elf_section_data (sec);
4072
      BFD_ASSERT (esd->rel_hdr2 == NULL);
4073
      esd->rel_hdr2 = bfd_zalloc (abfd, amt);
4074
      if (!esd->rel_hdr2)
4075
        return FALSE;
4076
      _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4077
                                !sec->use_rela_p);
4078
    }
4079
 
4080
  return TRUE;
4081
}
4082
 
4083
static enum elf_reloc_type_class
4084
m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4085
{
4086
  switch ((int) ELF32_R_TYPE (rela->r_info))
4087
    {
4088
    case R_M32R_RELATIVE:  return reloc_class_relative;
4089
    case R_M32R_JMP_SLOT:  return reloc_class_plt;
4090
    case R_M32R_COPY:      return reloc_class_copy;
4091
    default:               return reloc_class_normal;
4092
    }
4093
}
4094
 
4095
#define ELF_ARCH                bfd_arch_m32r
4096
#define ELF_MACHINE_CODE        EM_M32R
4097
#define ELF_MACHINE_ALT1        EM_CYGNUS_M32R
4098
#define ELF_MAXPAGESIZE         0x1 /* Explicitly requested by Mitsubishi.  */
4099
 
4100
#define TARGET_BIG_SYM          bfd_elf32_m32r_vec
4101
#define TARGET_BIG_NAME         "elf32-m32r"
4102
#define TARGET_LITTLE_SYM       bfd_elf32_m32rle_vec
4103
#define TARGET_LITTLE_NAME      "elf32-m32rle"
4104
 
4105
#define elf_info_to_howto                       m32r_info_to_howto
4106
#define elf_info_to_howto_rel                   m32r_info_to_howto_rel
4107
#define elf_backend_section_from_bfd_section    _bfd_m32r_elf_section_from_bfd_section
4108
#define elf_backend_symbol_processing           _bfd_m32r_elf_symbol_processing
4109
#define elf_backend_add_symbol_hook             m32r_elf_add_symbol_hook
4110
#define elf_backend_relocate_section            m32r_elf_relocate_section
4111
#define elf_backend_gc_mark_hook                m32r_elf_gc_mark_hook
4112
#define elf_backend_gc_sweep_hook               m32r_elf_gc_sweep_hook
4113
#define elf_backend_check_relocs                m32r_elf_check_relocs
4114
 
4115
#define elf_backend_create_dynamic_sections     m32r_elf_create_dynamic_sections
4116
#define bfd_elf32_bfd_link_hash_table_create    m32r_elf_link_hash_table_create
4117
#define elf_backend_size_dynamic_sections       m32r_elf_size_dynamic_sections
4118
#define elf_backend_omit_section_dynsym \
4119
  ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4120
#define elf_backend_finish_dynamic_sections     m32r_elf_finish_dynamic_sections
4121
#define elf_backend_adjust_dynamic_symbol       m32r_elf_adjust_dynamic_symbol
4122
#define elf_backend_finish_dynamic_symbol       m32r_elf_finish_dynamic_symbol
4123
#define elf_backend_reloc_type_class            m32r_elf_reloc_type_class
4124
#define elf_backend_copy_indirect_symbol        m32r_elf_copy_indirect_symbol
4125
 
4126
#define elf_backend_can_gc_sections             1
4127
/*#if !USE_REL
4128
#define elf_backend_rela_normal                 1
4129
#endif*/
4130
#define elf_backend_can_refcount 1
4131
#define elf_backend_want_got_plt 1
4132
#define elf_backend_plt_readonly 1
4133
#define elf_backend_want_plt_sym 0
4134
#define elf_backend_got_header_size 12
4135
 
4136
#define elf_backend_may_use_rel_p       1
4137
#ifdef USE_M32R_OLD_RELOC
4138
#define elf_backend_default_use_rela_p  0
4139
#define elf_backend_may_use_rela_p      0
4140
#else
4141
#define elf_backend_default_use_rela_p  1
4142
#define elf_backend_may_use_rela_p      1
4143
#define elf_backend_fake_sections       m32r_elf_fake_sections
4144
#endif
4145
 
4146
#define elf_backend_object_p                    m32r_elf_object_p
4147
#define elf_backend_final_write_processing      m32r_elf_final_write_processing
4148
#define bfd_elf32_bfd_merge_private_bfd_data    m32r_elf_merge_private_bfd_data
4149
#define bfd_elf32_bfd_set_private_flags         m32r_elf_set_private_flags
4150
#define bfd_elf32_bfd_print_private_bfd_data    m32r_elf_print_private_bfd_data
4151
#define elf_backend_special_sections            m32r_elf_special_sections
4152
 
4153
#include "elf32-target.h"
4154
 
4155
#undef  ELF_MAXPAGESIZE
4156
#define ELF_MAXPAGESIZE         0x1000
4157
 
4158
#undef  TARGET_BIG_SYM
4159
#define TARGET_BIG_SYM          bfd_elf32_m32rlin_vec
4160
#undef  TARGET_BIG_NAME
4161
#define TARGET_BIG_NAME         "elf32-m32r-linux"
4162
#undef  TARGET_LITTLE_SYM
4163
#define TARGET_LITTLE_SYM       bfd_elf32_m32rlelin_vec
4164
#undef  TARGET_LITTLE_NAME
4165
#define TARGET_LITTLE_NAME      "elf32-m32rle-linux"
4166
#undef  elf32_bed
4167
#define elf32_bed               elf32_m32r_lin_bed
4168
 
4169
#include "elf32-target.h"
4170
 

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