OpenCores
URL https://opencores.org/ocsvn/open8_urisc/open8_urisc/trunk

Subversion Repositories open8_urisc

[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [elf32-m32r.c] - Blame information for rev 146

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 14 khays
/* 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
        RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2630
                                         rel, relend, howto, contents);
2631
 
2632
      if (info->relocatable && !use_rel)
2633
        {
2634
          /* This is a relocatable link.  We don't have to change
2635
             anything, unless the reloc is against a section symbol,
2636
             in which case we have to adjust according to where the
2637
             section symbol winds up in the output section.  */
2638
          if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2639
            rel->r_addend += sec->output_offset;
2640
          continue;
2641
        }
2642
 
2643
      if (info->relocatable && use_rel)
2644
        {
2645
          /* This is a relocatable link.  We don't have to change
2646
             anything, unless the reloc is against a section symbol,
2647
             in which case we have to adjust according to where the
2648
             section symbol winds up in the output section.  */
2649
          if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2650
            continue;
2651
 
2652
          addend += sec->output_offset;
2653
 
2654
          /* If partial_inplace, we need to store any additional addend
2655
             back in the section.  */
2656
          if (! howto->partial_inplace)
2657
            continue;
2658
          /* ??? Here is a nice place to call a special_function
2659
             like handler.  */
2660
          if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2661
            r = _bfd_relocate_contents (howto, input_bfd,
2662
                                        addend, contents + offset);
2663
          else
2664
            {
2665
              Elf_Internal_Rela *lorel;
2666
 
2667
              /* We allow an arbitrary number of HI16 relocs before the
2668
                 LO16 reloc.  This permits gcc to emit the HI and LO relocs
2669
                 itself.  */
2670
              for (lorel = rel + 1;
2671
                   (lorel < relend
2672
                    && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2673
                        || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2674
                   lorel++)
2675
                continue;
2676
              if (lorel < relend
2677
                  && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2678
                {
2679
                  m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2680
                                          contents, addend);
2681
                  r = bfd_reloc_ok;
2682
                }
2683
              else
2684
                r = _bfd_relocate_contents (howto, input_bfd,
2685
                                            addend, contents + offset);
2686
            }
2687
        }
2688
      else
2689
        {
2690
          /* Sanity check the address.  */
2691
          if (offset > high_address)
2692
            {
2693
              r = bfd_reloc_outofrange;
2694
              goto check_reloc;
2695
            }
2696
 
2697
          switch ((int) r_type)
2698
            {
2699
            case R_M32R_GOTOFF:
2700
              /* Relocation is relative to the start of the global offset
2701
                 table (for ld24 rx, #uimm24). eg access at label+addend
2702
 
2703
                 ld24 rx. #label@GOTOFF + addend
2704
                 sub  rx, r12.  */
2705
 
2706
              BFD_ASSERT (sgot != NULL);
2707
 
2708
              relocation = -(relocation - sgot->output_section->vma);
2709
              rel->r_addend = -rel->r_addend;
2710
              break;
2711
 
2712
            case R_M32R_GOTOFF_HI_ULO:
2713
            case R_M32R_GOTOFF_HI_SLO:
2714
            case R_M32R_GOTOFF_LO:
2715
              BFD_ASSERT (sgot != NULL);
2716
 
2717
              relocation -= sgot->output_section->vma;
2718
 
2719
              if ((r_type == R_M32R_GOTOFF_HI_SLO)
2720
                  && ((relocation + rel->r_addend) & 0x8000))
2721
                rel->r_addend += 0x10000;
2722
              break;
2723
 
2724
            case R_M32R_GOTPC24:
2725
              /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2726
                 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2727
               */
2728
             relocation = sgot->output_section->vma;
2729
             break;
2730
 
2731
            case R_M32R_GOTPC_HI_ULO:
2732
            case R_M32R_GOTPC_HI_SLO:
2733
            case R_M32R_GOTPC_LO:
2734
              {
2735
                /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2736
                   bl .+4
2737
                   seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2738
                   or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2739
                   or
2740
                   bl .+4
2741
                   seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2742
                   add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2743
                 */
2744
                relocation = sgot->output_section->vma;
2745
                relocation -= (input_section->output_section->vma
2746
                               + input_section->output_offset
2747
                               + rel->r_offset);
2748
                if ((r_type == R_M32R_GOTPC_HI_SLO)
2749
                     && ((relocation + rel->r_addend) & 0x8000))
2750
                  rel->r_addend += 0x10000;
2751
 
2752
                break;
2753
              }
2754
            case R_M32R_GOT16_HI_ULO:
2755
            case R_M32R_GOT16_HI_SLO:
2756
            case R_M32R_GOT16_LO:
2757
              /* Fall through.  */
2758
            case R_M32R_GOT24:
2759
              /* Relocation is to the entry for this symbol in the global
2760
                 offset table.  */
2761
              BFD_ASSERT (sgot != NULL);
2762
 
2763
              if (h != NULL)
2764
                {
2765
                  bfd_boolean dyn;
2766
                  bfd_vma off;
2767
 
2768
                  off = h->got.offset;
2769
                  BFD_ASSERT (off != (bfd_vma) -1);
2770
 
2771
                  dyn = htab->root.dynamic_sections_created;
2772
                  if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2773
                      || (info->shared
2774
                          && (info->symbolic
2775
                              || h->dynindx == -1
2776
                              || h->forced_local)
2777
                          && h->def_regular))
2778
                    {
2779
                      /* This is actually a static link, or it is a
2780
                         -Bsymbolic link and the symbol is defined
2781
                         locally, or the symbol was forced to be local
2782
                         because of a version file.  We must initialize
2783
                         this entry in the global offset table.  Since the
2784
                         offset must always be a multiple of 4, we use the
2785
                         least significant bit to record whether we have
2786
                         initialized it already.
2787
 
2788
                         When doing a dynamic link, we create a .rela.got
2789
                         relocation entry to initialize the value.  This
2790
                         is done in the finish_dynamic_symbol routine.  */
2791
                      if ((off & 1) != 0)
2792
                        off &= ~1;
2793
                      else
2794
                        {
2795
                          bfd_put_32 (output_bfd, relocation,
2796
                                      sgot->contents + off);
2797
                          h->got.offset |= 1;
2798
                        }
2799
                    }
2800
 
2801
                  relocation = sgot->output_offset + off;
2802
                }
2803
              else
2804
                {
2805
                  bfd_vma off;
2806
                  bfd_byte *loc;
2807
 
2808
                  BFD_ASSERT (local_got_offsets != NULL
2809
                              && local_got_offsets[r_symndx] != (bfd_vma) -1);
2810
 
2811
                  off = local_got_offsets[r_symndx];
2812
 
2813
                  /* The offset must always be a multiple of 4.  We use
2814
                     the least significant bit to record whether we have
2815
                     already processed this entry.  */
2816
                  if ((off & 1) != 0)
2817
                    off &= ~1;
2818
                  else
2819
                    {
2820
                      bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2821
 
2822
                      if (info->shared)
2823
                        {
2824
                          asection *srelgot;
2825
                          Elf_Internal_Rela outrel;
2826
 
2827
                          /* We need to generate a R_M32R_RELATIVE reloc
2828
                             for the dynamic linker.  */
2829
                          srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2830
                          BFD_ASSERT (srelgot != NULL);
2831
 
2832
                          outrel.r_offset = (sgot->output_section->vma
2833
                                             + sgot->output_offset
2834
                                             + off);
2835
                          outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2836
                          outrel.r_addend = relocation;
2837
                          loc = srelgot->contents;
2838
                          loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2839
                          bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2840
                          ++srelgot->reloc_count;
2841
                        }
2842
 
2843
                      local_got_offsets[r_symndx] |= 1;
2844
                    }
2845
 
2846
                  relocation = sgot->output_offset + off;
2847
                }
2848
              if ((r_type == R_M32R_GOT16_HI_SLO)
2849
                  && ((relocation + rel->r_addend) & 0x8000))
2850
                rel->r_addend += 0x10000;
2851
 
2852
              break;
2853
 
2854
            case R_M32R_26_PLTREL:
2855
              /* Relocation is to the entry for this symbol in the
2856
                 procedure linkage table.  */
2857
 
2858
              /* The native assembler will generate a 26_PLTREL reloc
2859
                 for a local symbol if you assemble a call from one
2860
                 section to another when using -K pic. */
2861
              if (h == NULL)
2862
                break;
2863
 
2864
              if (h->forced_local)
2865
                break;
2866
 
2867
              if (h->plt.offset == (bfd_vma) -1)
2868
                /* We didn't make a PLT entry for this symbol.  This
2869
                   happens when statically linking PIC code, or when
2870
                   using -Bsymbolic.  */
2871
                break;
2872
 
2873
              relocation = (splt->output_section->vma
2874
                            + splt->output_offset
2875
                            + h->plt.offset);
2876
              break;
2877
 
2878
            case R_M32R_HI16_SLO_RELA:
2879
              if ((relocation + rel->r_addend) & 0x8000)
2880
                rel->r_addend += 0x10000;
2881
              /* Fall through.  */
2882
 
2883
            case R_M32R_16_RELA:
2884
            case R_M32R_24_RELA:
2885
            case R_M32R_32_RELA:
2886
            case R_M32R_REL32:
2887
            case R_M32R_10_PCREL_RELA:
2888
            case R_M32R_18_PCREL_RELA:
2889
            case R_M32R_26_PCREL_RELA:
2890
            case R_M32R_HI16_ULO_RELA:
2891
            case R_M32R_LO16_RELA:
2892
              if (info->shared
2893
                  && r_symndx != STN_UNDEF
2894
                  && (input_section->flags & SEC_ALLOC) != 0
2895
                  && ((   r_type != R_M32R_10_PCREL_RELA
2896
                       && r_type != R_M32R_18_PCREL_RELA
2897
                       && r_type != R_M32R_26_PCREL_RELA
2898
                       && r_type != R_M32R_REL32)
2899
                      || (h != NULL
2900
                          && h->dynindx != -1
2901
                          && (! info->symbolic
2902
                              || !h->def_regular))))
2903
                {
2904
                  Elf_Internal_Rela outrel;
2905
                  bfd_boolean skip, relocate;
2906
                  bfd_byte *loc;
2907
 
2908
                  /* When generating a shared object, these relocations
2909
                     are copied into the output file to be resolved at run
2910
                     time.  */
2911
                  if (sreloc == NULL)
2912
                    {
2913
                      sreloc = _bfd_elf_get_dynamic_reloc_section
2914
                        (input_bfd, input_section, /*rela?*/ TRUE);
2915
                      if (sreloc == NULL)
2916
                        return FALSE;
2917
                    }
2918
 
2919
                  skip = FALSE;
2920
                  relocate = FALSE;
2921
 
2922
                  outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2923
                                                             info,
2924
                                                             input_section,
2925
                                                             rel->r_offset);
2926
                  if (outrel.r_offset == (bfd_vma) -1)
2927
                    skip = TRUE;
2928
                  else if (outrel.r_offset == (bfd_vma) -2)
2929
                    skip = relocate = TRUE;
2930
                  outrel.r_offset += (input_section->output_section->vma
2931
                                      + input_section->output_offset);
2932
 
2933
                  if (skip)
2934
                    memset (&outrel, 0, sizeof outrel);
2935
                  else if (   r_type == R_M32R_10_PCREL_RELA
2936
                           || r_type == R_M32R_18_PCREL_RELA
2937
                           || r_type == R_M32R_26_PCREL_RELA
2938
                           || r_type == R_M32R_REL32)
2939
                    {
2940
                      BFD_ASSERT (h != NULL && h->dynindx != -1);
2941
                      outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2942
                      outrel.r_addend = rel->r_addend;
2943
                    }
2944
                  else
2945
                    {
2946
                    /* h->dynindx may be -1 if this symbol was marked to
2947
                       become local.  */
2948
                    if (h == NULL
2949
                        || ((info->symbolic || h->dynindx == -1)
2950
                             && h->def_regular))
2951
                      {
2952
                        relocate = TRUE;
2953
                        outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2954
                        outrel.r_addend = relocation + rel->r_addend;
2955
                      }
2956
                    else
2957
                      {
2958
                        BFD_ASSERT (h->dynindx != -1);
2959
                        outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2960
                        outrel.r_addend = relocation + rel->r_addend;
2961
                      }
2962
                    }
2963
 
2964
                  loc = sreloc->contents;
2965
                  loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2966
                  bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2967
                  ++sreloc->reloc_count;
2968
 
2969
                  /* If this reloc is against an external symbol, we do
2970
                     not want to fiddle with the addend.  Otherwise, we
2971
                     need to include the symbol value so that it becomes
2972
                     an addend for the dynamic reloc.  */
2973
                  if (! relocate)
2974
                    continue;
2975
                  break;
2976
                }
2977
              else if (r_type != R_M32R_10_PCREL_RELA)
2978
                break;
2979
              /* Fall through.  */
2980
 
2981
            case (int) R_M32R_10_PCREL :
2982
              r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2983
                                              contents, offset,
2984
                                              sec, relocation, addend);
2985
              goto check_reloc;
2986
 
2987
            case (int) R_M32R_HI16_SLO :
2988
            case (int) R_M32R_HI16_ULO :
2989
              {
2990
                Elf_Internal_Rela *lorel;
2991
 
2992
                /* We allow an arbitrary number of HI16 relocs before the
2993
                   LO16 reloc.  This permits gcc to emit the HI and LO relocs
2994
                   itself.  */
2995
                for (lorel = rel + 1;
2996
                     (lorel < relend
2997
                      && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2998
                          || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2999
                     lorel++)
3000
                  continue;
3001
                if (lorel < relend
3002
                    && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3003
                  {
3004
                    m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3005
                                            contents, relocation + addend);
3006
                    r = bfd_reloc_ok;
3007
                  }
3008
                else
3009
                  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3010
                                                contents, offset,
3011
                                                relocation, addend);
3012
              }
3013
 
3014
              goto check_reloc;
3015
 
3016
            case (int) R_M32R_SDA16_RELA:
3017
            case (int) R_M32R_SDA16 :
3018
              {
3019
                const char *name;
3020
 
3021
                BFD_ASSERT (sec != NULL);
3022
                name = bfd_get_section_name (abfd, sec);
3023
 
3024
                if (   strcmp (name, ".sdata") == 0
3025
                    || strcmp (name, ".sbss") == 0
3026
                    || strcmp (name, ".scommon") == 0)
3027
                  {
3028
                    bfd_vma sda_base;
3029
                    bfd *out_bfd = sec->output_section->owner;
3030
 
3031
                    r = m32r_elf_final_sda_base (out_bfd, info,
3032
                                                 &errmsg,
3033
                                                 &sda_base);
3034
                    if (r != bfd_reloc_ok)
3035
                      {
3036
                        ret = FALSE;
3037
                        goto check_reloc;
3038
                      }
3039
 
3040
                    /* At this point `relocation' contains the object's
3041
                       address.  */
3042
                    relocation -= sda_base;
3043
                    /* Now it contains the offset from _SDA_BASE_.  */
3044
                  }
3045
                else
3046
                  {
3047
                    (*_bfd_error_handler)
3048
                      (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3049
                       input_bfd,
3050
                       sec,
3051
                       sym_name,
3052
                       m32r_elf_howto_table[(int) r_type].name);
3053
                    /*bfd_set_error (bfd_error_bad_value); ??? why? */
3054
                    ret = FALSE;
3055
                    continue;
3056
                  }
3057
              }
3058
              /* Fall through.  */
3059
 
3060
            default : /* OLD_M32R_RELOC */
3061
 
3062
              r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3063
                                            contents, offset,
3064
                                            relocation, addend);
3065
              goto check_reloc;
3066
            }
3067
 
3068
          r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3069
                                        contents, rel->r_offset,
3070
                                        relocation, rel->r_addend);
3071
 
3072
        }
3073
 
3074
    check_reloc:
3075
 
3076
      if (r != bfd_reloc_ok)
3077
        {
3078
          /* FIXME: This should be generic enough to go in a utility.  */
3079
          const char *name;
3080
 
3081
          if (h != NULL)
3082
            name = h->root.root.string;
3083
          else
3084
            {
3085
              name = (bfd_elf_string_from_elf_section
3086
                      (input_bfd, symtab_hdr->sh_link, sym->st_name));
3087
              if (name == NULL || *name == '\0')
3088
                name = bfd_section_name (input_bfd, sec);
3089
            }
3090
 
3091
          if (errmsg != NULL)
3092
            goto common_error;
3093
 
3094
          switch (r)
3095
            {
3096
            case bfd_reloc_overflow:
3097
              if (! ((*info->callbacks->reloc_overflow)
3098
                     (info, (h ? &h->root : NULL), name, howto->name,
3099
                      (bfd_vma) 0, input_bfd, input_section, offset)))
3100
                return FALSE;
3101
              break;
3102
 
3103
            case bfd_reloc_undefined:
3104
              if (! ((*info->callbacks->undefined_symbol)
3105
                     (info, name, input_bfd, input_section,
3106
                      offset, TRUE)))
3107
                return FALSE;
3108
              break;
3109
 
3110
            case bfd_reloc_outofrange:
3111
              errmsg = _("internal error: out of range error");
3112
              goto common_error;
3113
 
3114
            case bfd_reloc_notsupported:
3115
              errmsg = _("internal error: unsupported relocation error");
3116
              goto common_error;
3117
 
3118
            case bfd_reloc_dangerous:
3119
              errmsg = _("internal error: dangerous error");
3120
              goto common_error;
3121
 
3122
            default:
3123
              errmsg = _("internal error: unknown error");
3124
              /* fall through */
3125
 
3126
            common_error:
3127
              if (!((*info->callbacks->warning)
3128
                    (info, errmsg, name, input_bfd, input_section,
3129
                     offset)))
3130
                return FALSE;
3131
              break;
3132
            }
3133
        }
3134
    }
3135
 
3136
  return ret;
3137
}
3138
 
3139
/* Finish up dynamic symbol handling.  We set the contents of various
3140
   dynamic sections here.  */
3141
 
3142
static bfd_boolean
3143
m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3144
                                struct bfd_link_info *info,
3145
                                struct elf_link_hash_entry *h,
3146
                                Elf_Internal_Sym *sym)
3147
{
3148
  struct elf_m32r_link_hash_table *htab;
3149
  bfd_byte *loc;
3150
 
3151
#ifdef DEBUG_PIC
3152
  printf ("m32r_elf_finish_dynamic_symbol()\n");
3153
#endif
3154
 
3155
  htab = m32r_elf_hash_table (info);
3156
  if (htab == NULL)
3157
    return FALSE;
3158
 
3159
  if (h->plt.offset != (bfd_vma) -1)
3160
    {
3161
      asection *splt;
3162
      asection *sgot;
3163
      asection *srela;
3164
 
3165
      bfd_vma plt_index;
3166
      bfd_vma got_offset;
3167
      Elf_Internal_Rela rela;
3168
 
3169
      /* This symbol has an entry in the procedure linkage table.  Set
3170
         it up.  */
3171
 
3172
      BFD_ASSERT (h->dynindx != -1);
3173
 
3174
      splt = htab->splt;
3175
      sgot = htab->sgotplt;
3176
      srela = htab->srelplt;
3177
      BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3178
 
3179
      /* Get the index in the procedure linkage table which
3180
         corresponds to this symbol.  This is the index of this symbol
3181
         in all the symbols for which we are making plt entries.  The
3182
         first entry in the procedure linkage table is reserved.  */
3183
      plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3184
 
3185
      /* Get the offset into the .got table of the entry that
3186
        corresponds to this function.  Each .got entry is 4 bytes.
3187
        The first three are reserved.  */
3188
      got_offset = (plt_index + 3) * 4;
3189
 
3190
      /* Fill in the entry in the procedure linkage table.  */
3191
      if (! info->shared)
3192
        {
3193
          bfd_put_32 (output_bfd,
3194
              (PLT_ENTRY_WORD0b
3195
               + (((sgot->output_section->vma
3196
                    + sgot->output_offset
3197
                    + got_offset) >> 16) & 0xffff)),
3198
              splt->contents + h->plt.offset);
3199
          bfd_put_32 (output_bfd,
3200
              (PLT_ENTRY_WORD1b
3201
               + ((sgot->output_section->vma
3202
                   + sgot->output_offset
3203
                   + got_offset) & 0xffff)),
3204
              splt->contents + h->plt.offset + 4);
3205
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3206
              splt->contents + h->plt.offset + 8);
3207
          bfd_put_32 (output_bfd,
3208
              (PLT_ENTRY_WORD3
3209
               + plt_index * sizeof (Elf32_External_Rela)),
3210
              splt->contents + h->plt.offset + 12);
3211
          bfd_put_32 (output_bfd,
3212
              (PLT_ENTRY_WORD4
3213
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3214
              splt->contents + h->plt.offset + 16);
3215
        }
3216
      else
3217
        {
3218
          bfd_put_32 (output_bfd,
3219
              PLT_ENTRY_WORD0 + got_offset,
3220
              splt->contents + h->plt.offset);
3221
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3222
              splt->contents + h->plt.offset + 4);
3223
          bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3224
              splt->contents + h->plt.offset + 8);
3225
          bfd_put_32 (output_bfd,
3226
              (PLT_ENTRY_WORD3
3227
               + plt_index * sizeof (Elf32_External_Rela)),
3228
              splt->contents + h->plt.offset + 12);
3229
          bfd_put_32 (output_bfd,
3230
              (PLT_ENTRY_WORD4
3231
               + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3232
              splt->contents + h->plt.offset + 16);
3233
        }
3234
 
3235
      /* Fill in the entry in the global offset table.  */
3236
      bfd_put_32 (output_bfd,
3237
                  (splt->output_section->vma
3238
                   + splt->output_offset
3239
                   + h->plt.offset
3240
                   + 12), /* same offset */
3241
                  sgot->contents + got_offset);
3242
 
3243
      /* Fill in the entry in the .rela.plt section.  */
3244
      rela.r_offset = (sgot->output_section->vma
3245
                       + sgot->output_offset
3246
                       + got_offset);
3247
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3248
      rela.r_addend = 0;
3249
      loc = srela->contents;
3250
      loc += plt_index * sizeof (Elf32_External_Rela);
3251
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3252
 
3253
      if (!h->def_regular)
3254
        {
3255
          /* Mark the symbol as undefined, rather than as defined in
3256
             the .plt section.  Leave the value alone.  */
3257
          sym->st_shndx = SHN_UNDEF;
3258
        }
3259
    }
3260
 
3261
  if (h->got.offset != (bfd_vma) -1)
3262
    {
3263
      asection *sgot;
3264
      asection *srela;
3265
      Elf_Internal_Rela rela;
3266
 
3267
      /* This symbol has an entry in the global offset table.  Set it
3268
         up.  */
3269
 
3270
      sgot = htab->sgot;
3271
      srela = htab->srelgot;
3272
      BFD_ASSERT (sgot != NULL && srela != NULL);
3273
 
3274
      rela.r_offset = (sgot->output_section->vma
3275
                       + sgot->output_offset
3276
                       + (h->got.offset &~ 1));
3277
 
3278
      /* If this is a -Bsymbolic link, and the symbol is defined
3279
         locally, we just want to emit a RELATIVE reloc.  Likewise if
3280
         the symbol was forced to be local because of a version file.
3281
         The entry in the global offset table will already have been
3282
         initialized in the relocate_section function.  */
3283
      if (info->shared
3284
          && (info->symbolic
3285
              || h->dynindx == -1
3286
              || h->forced_local)
3287
          && h->def_regular)
3288
        {
3289
          rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3290
          rela.r_addend = (h->root.u.def.value
3291
                           + h->root.u.def.section->output_section->vma
3292
                           + h->root.u.def.section->output_offset);
3293
        }
3294
      else
3295
        {
3296
          BFD_ASSERT ((h->got.offset & 1) == 0);
3297
          bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3298
          rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3299
          rela.r_addend = 0;
3300
        }
3301
 
3302
      loc = srela->contents;
3303
      loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3304
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3305
      ++srela->reloc_count;
3306
    }
3307
 
3308
  if (h->needs_copy)
3309
    {
3310
      asection *s;
3311
      Elf_Internal_Rela rela;
3312
 
3313
      /* This symbols needs a copy reloc.  Set it up.  */
3314
 
3315
      BFD_ASSERT (h->dynindx != -1
3316
                  && (h->root.type == bfd_link_hash_defined
3317
                      || h->root.type == bfd_link_hash_defweak));
3318
 
3319
      s = bfd_get_section_by_name (h->root.u.def.section->owner,
3320
                                   ".rela.bss");
3321
      BFD_ASSERT (s != NULL);
3322
 
3323
      rela.r_offset = (h->root.u.def.value
3324
                       + h->root.u.def.section->output_section->vma
3325
                       + h->root.u.def.section->output_offset);
3326
      rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3327
      rela.r_addend = 0;
3328
      loc = s->contents;
3329
      loc += s->reloc_count * sizeof (Elf32_External_Rela);
3330
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3331
      ++s->reloc_count;
3332
    }
3333
 
3334
  /* Mark some specially defined symbols as absolute.  */
3335
  if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3336
      || h == htab->root.hgot)
3337
    sym->st_shndx = SHN_ABS;
3338
 
3339
  return TRUE;
3340
}
3341
 
3342
 
3343
/* Finish up the dynamic sections.  */
3344
 
3345
static bfd_boolean
3346
m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3347
                                  struct bfd_link_info *info)
3348
{
3349
  struct elf_m32r_link_hash_table *htab;
3350
  bfd *dynobj;
3351
  asection *sdyn;
3352
  asection *sgot;
3353
 
3354
#ifdef DEBUG_PIC
3355
  printf ("m32r_elf_finish_dynamic_sections()\n");
3356
#endif
3357
 
3358
  htab = m32r_elf_hash_table (info);
3359
  if (htab == NULL)
3360
    return FALSE;
3361
 
3362
  dynobj = htab->root.dynobj;
3363
 
3364
  sgot = htab->sgotplt;
3365
  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3366
 
3367
  if (htab->root.dynamic_sections_created)
3368
    {
3369
      asection *splt;
3370
      Elf32_External_Dyn *dyncon, *dynconend;
3371
 
3372
      BFD_ASSERT (sgot != NULL && sdyn != NULL);
3373
 
3374
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
3375
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3376
 
3377
      for (; dyncon < dynconend; dyncon++)
3378
        {
3379
          Elf_Internal_Dyn dyn;
3380
          asection *s;
3381
 
3382
          bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3383
 
3384
          switch (dyn.d_tag)
3385
            {
3386
            default:
3387
              break;
3388
 
3389
            case DT_PLTGOT:
3390
              s = htab->sgot->output_section;
3391
              goto get_vma;
3392
            case DT_JMPREL:
3393
              s = htab->srelplt->output_section;
3394
            get_vma:
3395
              BFD_ASSERT (s != NULL);
3396
              dyn.d_un.d_ptr = s->vma;
3397
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3398
              break;
3399
 
3400
            case DT_PLTRELSZ:
3401
              s = htab->srelplt->output_section;
3402
              BFD_ASSERT (s != NULL);
3403
              dyn.d_un.d_val = s->size;
3404
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3405
              break;
3406
 
3407
            case DT_RELASZ:
3408
              /* My reading of the SVR4 ABI indicates that the
3409
                 procedure linkage table relocs (DT_JMPREL) should be
3410
                 included in the overall relocs (DT_RELA).  This is
3411
                 what Solaris does.  However, UnixWare can not handle
3412
                 that case.  Therefore, we override the DT_RELASZ entry
3413
                 here to make it not include the JMPREL relocs.  Since
3414
                 the linker script arranges for .rela.plt to follow all
3415
                 other relocation sections, we don't have to worry
3416
                 about changing the DT_RELA entry.  */
3417
              if (htab->srelplt != NULL)
3418
                {
3419
                  s = htab->srelplt->output_section;
3420
                  dyn.d_un.d_val -= s->size;
3421
                }
3422
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3423
              break;
3424
            }
3425
        }
3426
 
3427
      /* Fill in the first entry in the procedure linkage table.  */
3428
      splt = htab->splt;
3429
      if (splt && splt->size > 0)
3430
        {
3431
          if (info->shared)
3432
            {
3433
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3434
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3435
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3436
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3437
              bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3438
            }
3439
          else
3440
            {
3441
              unsigned long addr;
3442
              /* addr = .got + 4 */
3443
              addr = sgot->output_section->vma + sgot->output_offset + 4;
3444
              bfd_put_32 (output_bfd,
3445
                          PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3446
                          splt->contents);
3447
              bfd_put_32 (output_bfd,
3448
                          PLT0_ENTRY_WORD1 | (addr & 0xffff),
3449
                          splt->contents + 4);
3450
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3451
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3452
              bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3453
            }
3454
 
3455
          elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3456
            PLT_ENTRY_SIZE;
3457
        }
3458
    }
3459
 
3460
  /* Fill in the first three entries in the global offset table.  */
3461
  if (sgot && sgot->size > 0)
3462
    {
3463
      if (sdyn == NULL)
3464
        bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3465
      else
3466
        bfd_put_32 (output_bfd,
3467
                    sdyn->output_section->vma + sdyn->output_offset,
3468
                    sgot->contents);
3469
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3470
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3471
 
3472
      elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3473
    }
3474
 
3475
  return TRUE;
3476
}
3477
 
3478
 
3479
/* Set the right machine number.  */
3480
 
3481
static bfd_boolean
3482
m32r_elf_object_p (bfd *abfd)
3483
{
3484
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3485
    {
3486
    default:
3487
    case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3488
    case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3489
    case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3490
    }
3491
  return TRUE;
3492
}
3493
 
3494
/* Store the machine number in the flags field.  */
3495
 
3496
static void
3497
m32r_elf_final_write_processing (bfd *abfd,
3498
                                 bfd_boolean linker ATTRIBUTE_UNUSED)
3499
{
3500
  unsigned long val;
3501
 
3502
  switch (bfd_get_mach (abfd))
3503
    {
3504
    default:
3505
    case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3506
    case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3507
    case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3508
    }
3509
 
3510
  elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3511
  elf_elfheader (abfd)->e_flags |= val;
3512
}
3513
 
3514
/* Function to keep M32R specific file flags.  */
3515
 
3516
static bfd_boolean
3517
m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3518
{
3519
  BFD_ASSERT (!elf_flags_init (abfd)
3520
              || elf_elfheader (abfd)->e_flags == flags);
3521
 
3522
  elf_elfheader (abfd)->e_flags = flags;
3523
  elf_flags_init (abfd) = TRUE;
3524
  return TRUE;
3525
}
3526
 
3527
/* Merge backend specific data from an object file to the output
3528
   object file when linking.  */
3529
 
3530
static bfd_boolean
3531
m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3532
{
3533
  flagword out_flags;
3534
  flagword in_flags;
3535
 
3536
  if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3537
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3538
    return TRUE;
3539
 
3540
  in_flags  = elf_elfheader (ibfd)->e_flags;
3541
  out_flags = elf_elfheader (obfd)->e_flags;
3542
 
3543
  if (! elf_flags_init (obfd))
3544
    {
3545
      /* If the input is the default architecture then do not
3546
         bother setting the flags for the output architecture,
3547
         instead allow future merges to do this.  If no future
3548
         merges ever set these flags then they will retain their
3549
         unitialised values, which surprise surprise, correspond
3550
         to the default values.  */
3551
      if (bfd_get_arch_info (ibfd)->the_default)
3552
        return TRUE;
3553
 
3554
      elf_flags_init (obfd) = TRUE;
3555
      elf_elfheader (obfd)->e_flags = in_flags;
3556
 
3557
      if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3558
          && bfd_get_arch_info (obfd)->the_default)
3559
        return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3560
                                  bfd_get_mach (ibfd));
3561
 
3562
      return TRUE;
3563
    }
3564
 
3565
  /* Check flag compatibility.  */
3566
  if (in_flags == out_flags)
3567
    return TRUE;
3568
 
3569
  if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3570
    {
3571
      if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3572
          || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3573
          || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3574
        {
3575
          (*_bfd_error_handler)
3576
            (_("%B: Instruction set mismatch with previous modules"), ibfd);
3577
 
3578
          bfd_set_error (bfd_error_bad_value);
3579
          return FALSE;
3580
        }
3581
    }
3582
 
3583
  return TRUE;
3584
}
3585
 
3586
/* Display the flags field.  */
3587
 
3588
static bfd_boolean
3589
m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3590
{
3591
  FILE * file = (FILE *) ptr;
3592
 
3593
  BFD_ASSERT (abfd != NULL && ptr != NULL);
3594
 
3595
  _bfd_elf_print_private_bfd_data (abfd, ptr);
3596
 
3597
  fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3598
 
3599
  switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3600
    {
3601
    default:
3602
    case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3603
    case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3604
    case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3605
    }
3606
 
3607
  fputc ('\n', file);
3608
 
3609
  return TRUE;
3610
}
3611
 
3612
static asection *
3613
m32r_elf_gc_mark_hook (asection *sec,
3614
                       struct bfd_link_info *info,
3615
                       Elf_Internal_Rela *rel,
3616
                       struct elf_link_hash_entry *h,
3617
                       Elf_Internal_Sym *sym)
3618
{
3619
  if (h != NULL)
3620
    switch (ELF32_R_TYPE (rel->r_info))
3621
      {
3622
      case R_M32R_GNU_VTINHERIT:
3623
      case R_M32R_GNU_VTENTRY:
3624
      case R_M32R_RELA_GNU_VTINHERIT:
3625
      case R_M32R_RELA_GNU_VTENTRY:
3626
        return NULL;
3627
      }
3628
 
3629
  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3630
}
3631
 
3632
static bfd_boolean
3633
m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3634
                        struct bfd_link_info *info ATTRIBUTE_UNUSED,
3635
                        asection *sec ATTRIBUTE_UNUSED,
3636
                        const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3637
{
3638
  /* Update the got entry reference counts for the section being removed.  */
3639
  Elf_Internal_Shdr *symtab_hdr;
3640
  struct elf_link_hash_entry **sym_hashes;
3641
  bfd_signed_vma *local_got_refcounts;
3642
  const Elf_Internal_Rela *rel, *relend;
3643
 
3644
  if (info->relocatable)
3645
    return TRUE;
3646
 
3647
  elf_section_data (sec)->local_dynrel = NULL;
3648
 
3649
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3650
  sym_hashes = elf_sym_hashes (abfd);
3651
  local_got_refcounts = elf_local_got_refcounts (abfd);
3652
 
3653
  relend = relocs + sec->reloc_count;
3654
  for (rel = relocs; rel < relend; rel++)
3655
    {
3656
      unsigned long r_symndx;
3657
      struct elf_link_hash_entry *h = NULL;
3658
 
3659
      r_symndx = ELF32_R_SYM (rel->r_info);
3660
      if (r_symndx >= symtab_hdr->sh_info)
3661
        {
3662
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3663
          while (h->root.type == bfd_link_hash_indirect
3664
                 || h->root.type == bfd_link_hash_warning)
3665
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3666
        }
3667
 
3668
      switch (ELF32_R_TYPE (rel->r_info))
3669
        {
3670
        case R_M32R_GOT16_HI_ULO:
3671
        case R_M32R_GOT16_HI_SLO:
3672
        case R_M32R_GOT16_LO:
3673
        case R_M32R_GOTOFF:
3674
        case R_M32R_GOTOFF_HI_ULO:
3675
        case R_M32R_GOTOFF_HI_SLO:
3676
        case R_M32R_GOTOFF_LO:
3677
        case R_M32R_GOT24:
3678
        case R_M32R_GOTPC_HI_ULO:
3679
        case R_M32R_GOTPC_HI_SLO:
3680
        case R_M32R_GOTPC_LO:
3681
        case R_M32R_GOTPC24:
3682
          if (h != NULL)
3683
            {
3684
              if (h->got.refcount > 0)
3685
                h->got.refcount--;
3686
            }
3687
          else
3688
            {
3689
              if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3690
                local_got_refcounts[r_symndx]--;
3691
            }
3692
          break;
3693
 
3694
        case R_M32R_16_RELA:
3695
        case R_M32R_24_RELA:
3696
        case R_M32R_32_RELA:
3697
        case R_M32R_REL32:
3698
        case R_M32R_HI16_ULO_RELA:
3699
        case R_M32R_HI16_SLO_RELA:
3700
        case R_M32R_LO16_RELA:
3701
        case R_M32R_SDA16_RELA:
3702
        case R_M32R_10_PCREL_RELA:
3703
        case R_M32R_18_PCREL_RELA:
3704
        case R_M32R_26_PCREL_RELA:
3705
          if (h != NULL)
3706
            {
3707
              struct elf_m32r_link_hash_entry *eh;
3708
              struct elf_m32r_dyn_relocs **pp;
3709
              struct elf_m32r_dyn_relocs *p;
3710
 
3711
              if (!info->shared && h->plt.refcount > 0)
3712
                h->plt.refcount -= 1;
3713
 
3714
              eh = (struct elf_m32r_link_hash_entry *) h;
3715
 
3716
              for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3717
                if (p->sec == sec)
3718
                  {
3719
                    if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3720
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3721
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3722
                        || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3723
                      p->pc_count -= 1;
3724
                    p->count -= 1;
3725
                    if (p->count == 0)
3726
                      *pp = p->next;
3727
                    break;
3728
                  }
3729
            }
3730
          break;
3731
 
3732
        case R_M32R_26_PLTREL:
3733
          if (h != NULL)
3734
            {
3735
              if (h->plt.refcount > 0)
3736
                h->plt.refcount--;
3737
            }
3738
          break;
3739
 
3740
        default:
3741
          break;
3742
        }
3743
    }
3744
 
3745
  return TRUE;
3746
}
3747
 
3748
/* Look through the relocs for a section during the first phase.
3749
   Since we don't do .gots or .plts, we just need to consider the
3750
   virtual table relocs for gc.  */
3751
 
3752
static bfd_boolean
3753
m32r_elf_check_relocs (bfd *abfd,
3754
                       struct bfd_link_info *info,
3755
                       asection *sec,
3756
                       const Elf_Internal_Rela *relocs)
3757
{
3758
  Elf_Internal_Shdr *symtab_hdr;
3759
  struct elf_link_hash_entry **sym_hashes;
3760
  const Elf_Internal_Rela *rel;
3761
  const Elf_Internal_Rela *rel_end;
3762
  struct elf_m32r_link_hash_table *htab;
3763
  bfd *dynobj;
3764
  asection *sreloc;
3765
 
3766
  if (info->relocatable)
3767
    return TRUE;
3768
 
3769
  sreloc = NULL;
3770
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3771
  sym_hashes = elf_sym_hashes (abfd);
3772
 
3773
  htab = m32r_elf_hash_table (info);
3774
  if (htab == NULL)
3775
    return FALSE;
3776
 
3777
  dynobj = htab->root.dynobj;
3778
 
3779
  rel_end = relocs + sec->reloc_count;
3780
  for (rel = relocs; rel < rel_end; rel++)
3781
    {
3782
      int r_type;
3783
      struct elf_link_hash_entry *h;
3784
      unsigned long r_symndx;
3785
 
3786
      r_symndx = ELF32_R_SYM (rel->r_info);
3787
      r_type = ELF32_R_TYPE (rel->r_info);
3788
      if (r_symndx < symtab_hdr->sh_info)
3789
        h = NULL;
3790
      else
3791
        {
3792
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3793
          while (h->root.type == bfd_link_hash_indirect
3794
                 || h->root.type == bfd_link_hash_warning)
3795
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
3796
        }
3797
 
3798
      /* Some relocs require a global offset table.  */
3799
      if (htab->sgot == NULL)
3800
        {
3801
          switch (r_type)
3802
            {
3803
            case R_M32R_GOT16_HI_ULO:
3804
            case R_M32R_GOT16_HI_SLO:
3805
            case R_M32R_GOTOFF:
3806
            case R_M32R_GOTOFF_HI_ULO:
3807
            case R_M32R_GOTOFF_HI_SLO:
3808
            case R_M32R_GOTOFF_LO:
3809
            case R_M32R_GOT16_LO:
3810
            case R_M32R_GOTPC24:
3811
            case R_M32R_GOTPC_HI_ULO:
3812
            case R_M32R_GOTPC_HI_SLO:
3813
            case R_M32R_GOTPC_LO:
3814
            case R_M32R_GOT24:
3815
              if (dynobj == NULL)
3816
                htab->root.dynobj = dynobj = abfd;
3817
              if (! create_got_section (dynobj, info))
3818
                return FALSE;
3819
              break;
3820
 
3821
            default:
3822
              break;
3823
          }
3824
        }
3825
 
3826
      switch (r_type)
3827
        {
3828
        case R_M32R_GOT16_HI_ULO:
3829
        case R_M32R_GOT16_HI_SLO:
3830
        case R_M32R_GOT16_LO:
3831
        case R_M32R_GOT24:
3832
 
3833
          if (h != NULL)
3834
            h->got.refcount += 1;
3835
          else
3836
            {
3837
              bfd_signed_vma *local_got_refcounts;
3838
 
3839
              /* This is a global offset table entry for a local
3840
                 symbol.  */
3841
              local_got_refcounts = elf_local_got_refcounts (abfd);
3842
              if (local_got_refcounts == NULL)
3843
                {
3844
                  bfd_size_type size;
3845
 
3846
                  size = symtab_hdr->sh_info;
3847
                  size *= sizeof (bfd_signed_vma);
3848
                  local_got_refcounts = bfd_zalloc (abfd, size);
3849
                  if (local_got_refcounts == NULL)
3850
                    return FALSE;
3851
                  elf_local_got_refcounts (abfd) = local_got_refcounts;
3852
                }
3853
              local_got_refcounts[r_symndx] += 1;
3854
            }
3855
          break;
3856
 
3857
        case R_M32R_26_PLTREL:
3858
          /* This symbol requires a procedure linkage table entry.  We
3859
             actually build the entry in adjust_dynamic_symbol,
3860
             because this might be a case of linking PIC code without
3861
             linking in any dynamic objects, in which case we don't
3862
             need to generate a procedure linkage table after all.  */
3863
 
3864
          /* If this is a local symbol, we resolve it directly without
3865
             creating a procedure linkage table entry.  */
3866
          if (h == NULL)
3867
            continue;
3868
 
3869
          if (h->forced_local)
3870
            break;
3871
 
3872
          h->needs_plt = 1;
3873
          h->plt.refcount += 1;
3874
          break;
3875
 
3876
        case R_M32R_16_RELA:
3877
        case R_M32R_24_RELA:
3878
        case R_M32R_32_RELA:
3879
        case R_M32R_REL32:
3880
        case R_M32R_HI16_ULO_RELA:
3881
        case R_M32R_HI16_SLO_RELA:
3882
        case R_M32R_LO16_RELA:
3883
        case R_M32R_SDA16_RELA:
3884
        case R_M32R_10_PCREL_RELA:
3885
        case R_M32R_18_PCREL_RELA:
3886
        case R_M32R_26_PCREL_RELA:
3887
 
3888
          if (h != NULL && !info->shared)
3889
            {
3890
              h->non_got_ref = 1;
3891
              h->plt.refcount += 1;
3892
            }
3893
 
3894
          /* If we are creating a shared library, and this is a reloc
3895
             against a global symbol, or a non PC relative reloc
3896
             against a local symbol, then we need to copy the reloc
3897
             into the shared library.  However, if we are linking with
3898
             -Bsymbolic, we do not need to copy a reloc against a
3899
             global symbol which is defined in an object we are
3900
             including in the link (i.e., DEF_REGULAR is set).  At
3901
             this point we have not seen all the input files, so it is
3902
             possible that DEF_REGULAR is not set now but will be set
3903
             later (it is never cleared).  We account for that
3904
             possibility below by storing information in the
3905
             dyn_relocs field of the hash table entry. A similar
3906
             situation occurs when creating shared libraries and symbol
3907
             visibility changes render the symbol local.
3908
 
3909
             If on the other hand, we are creating an executable, we
3910
             may need to keep relocations for symbols satisfied by a
3911
             dynamic library if we manage to avoid copy relocs for the
3912
             symbol.  */
3913
          if ((info->shared
3914
               && (sec->flags & SEC_ALLOC) != 0
3915
               && ((   r_type != R_M32R_26_PCREL_RELA
3916
                    && r_type != R_M32R_18_PCREL_RELA
3917
                    && r_type != R_M32R_10_PCREL_RELA
3918
                    && r_type != R_M32R_REL32)
3919
                   || (h != NULL
3920
                       && (! info->symbolic
3921
                           || h->root.type == bfd_link_hash_defweak
3922
                           || !h->def_regular))))
3923
              || (!info->shared
3924
                  && (sec->flags & SEC_ALLOC) != 0
3925
                  && h != NULL
3926
                  && (h->root.type == bfd_link_hash_defweak
3927
                      || !h->def_regular)))
3928
            {
3929
              struct elf_m32r_dyn_relocs *p;
3930
              struct elf_m32r_dyn_relocs **head;
3931
 
3932
              if (dynobj == NULL)
3933
                htab->root.dynobj = dynobj = abfd;
3934
 
3935
              /* When creating a shared object, we must copy these
3936
                 relocs into the output file.  We create a reloc
3937
                 section in dynobj and make room for the reloc.  */
3938
              if (sreloc == NULL)
3939
                {
3940
                  sreloc = _bfd_elf_make_dynamic_reloc_section
3941
                    (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3942
 
3943
                  if (sreloc == NULL)
3944
                    return FALSE;
3945
                }
3946
 
3947
              /* If this is a global symbol, we count the number of
3948
                 relocations we need for this symbol.  */
3949
              if (h != NULL)
3950
                head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3951
              else
3952
                {
3953
                  /* Track dynamic relocs needed for local syms too.  */
3954
                  asection *s;
3955
                  void *vpp;
3956
                  Elf_Internal_Sym *isym;
3957
 
3958
                  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3959
                                                abfd, r_symndx);
3960
                  if (isym == NULL)
3961
                    return FALSE;
3962
 
3963
                  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3964
                  if (s == NULL)
3965
                    s = sec;
3966
 
3967
                  vpp = &elf_section_data (s)->local_dynrel;
3968
                  head = (struct elf_m32r_dyn_relocs **) vpp;
3969
                }
3970
 
3971
              p = *head;
3972
              if (p == NULL || p->sec != sec)
3973
                {
3974
                  bfd_size_type amt = sizeof (*p);
3975
 
3976
                  p = bfd_alloc (dynobj, amt);
3977
                  if (p == NULL)
3978
                    return FALSE;
3979
                  p->next = *head;
3980
                  *head = p;
3981
                  p->sec = sec;
3982
                  p->count = 0;
3983
                  p->pc_count = 0;
3984
                }
3985
 
3986
              p->count += 1;
3987
              if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3988
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3989
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3990
                  || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3991
                p->pc_count += 1;
3992
            }
3993
          break;
3994
 
3995
        /* This relocation describes the C++ object vtable hierarchy.
3996
           Reconstruct it for later use during GC.  */
3997
        case R_M32R_RELA_GNU_VTINHERIT:
3998
        case R_M32R_GNU_VTINHERIT:
3999
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4000
            return FALSE;
4001
          break;
4002
 
4003
        /* This relocation describes which C++ vtable entries are actually
4004
           used.  Record for later use during GC.  */
4005
        case R_M32R_GNU_VTENTRY:
4006
          BFD_ASSERT (h != NULL);
4007
          if (h != NULL
4008
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
4009
            return FALSE;
4010
          break;
4011
        case R_M32R_RELA_GNU_VTENTRY:
4012
          BFD_ASSERT (h != NULL);
4013
          if (h != NULL
4014
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4015
            return FALSE;
4016
          break;
4017
        }
4018
    }
4019
 
4020
  return TRUE;
4021
}
4022
 
4023
static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4024
{
4025
  { STRING_COMMA_LEN (".sbss"),  -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
4026
  { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4027
  { NULL,                     0,  0, 0,            0 }
4028
};
4029
 
4030
static enum elf_reloc_type_class
4031
m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4032
{
4033
  switch ((int) ELF32_R_TYPE (rela->r_info))
4034
    {
4035
    case R_M32R_RELATIVE:  return reloc_class_relative;
4036
    case R_M32R_JMP_SLOT:  return reloc_class_plt;
4037
    case R_M32R_COPY:      return reloc_class_copy;
4038
    default:               return reloc_class_normal;
4039
    }
4040
}
4041
 
4042
#define ELF_ARCH                bfd_arch_m32r
4043
#define ELF_TARGET_ID           M32R_ELF_DATA
4044
#define ELF_MACHINE_CODE        EM_M32R
4045
#define ELF_MACHINE_ALT1        EM_CYGNUS_M32R
4046
#define ELF_MAXPAGESIZE         0x1 /* Explicitly requested by Mitsubishi.  */
4047
 
4048
#define TARGET_BIG_SYM          bfd_elf32_m32r_vec
4049
#define TARGET_BIG_NAME         "elf32-m32r"
4050
#define TARGET_LITTLE_SYM       bfd_elf32_m32rle_vec
4051
#define TARGET_LITTLE_NAME      "elf32-m32rle"
4052
 
4053
#define elf_info_to_howto                       m32r_info_to_howto
4054
#define elf_info_to_howto_rel                   m32r_info_to_howto_rel
4055
#define elf_backend_section_from_bfd_section    _bfd_m32r_elf_section_from_bfd_section
4056
#define elf_backend_symbol_processing           _bfd_m32r_elf_symbol_processing
4057
#define elf_backend_add_symbol_hook             m32r_elf_add_symbol_hook
4058
#define elf_backend_relocate_section            m32r_elf_relocate_section
4059
#define elf_backend_gc_mark_hook                m32r_elf_gc_mark_hook
4060
#define elf_backend_gc_sweep_hook               m32r_elf_gc_sweep_hook
4061
#define elf_backend_check_relocs                m32r_elf_check_relocs
4062
 
4063
#define elf_backend_create_dynamic_sections     m32r_elf_create_dynamic_sections
4064
#define bfd_elf32_bfd_link_hash_table_create    m32r_elf_link_hash_table_create
4065
#define elf_backend_size_dynamic_sections       m32r_elf_size_dynamic_sections
4066
#define elf_backend_omit_section_dynsym \
4067
  ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4068
#define elf_backend_finish_dynamic_sections     m32r_elf_finish_dynamic_sections
4069
#define elf_backend_adjust_dynamic_symbol       m32r_elf_adjust_dynamic_symbol
4070
#define elf_backend_finish_dynamic_symbol       m32r_elf_finish_dynamic_symbol
4071
#define elf_backend_reloc_type_class            m32r_elf_reloc_type_class
4072
#define elf_backend_copy_indirect_symbol        m32r_elf_copy_indirect_symbol
4073
 
4074
#define elf_backend_can_gc_sections             1
4075
/*#if !USE_REL
4076
#define elf_backend_rela_normal                 1
4077
#endif*/
4078
#define elf_backend_can_refcount 1
4079
#define elf_backend_want_got_plt 1
4080
#define elf_backend_plt_readonly 1
4081
#define elf_backend_want_plt_sym 0
4082
#define elf_backend_got_header_size 12
4083
 
4084
#define elf_backend_may_use_rel_p       1
4085
#ifdef USE_M32R_OLD_RELOC
4086
#define elf_backend_default_use_rela_p  0
4087
#define elf_backend_may_use_rela_p      0
4088
#else
4089
#define elf_backend_default_use_rela_p  1
4090
#define elf_backend_may_use_rela_p      1
4091
#endif
4092
 
4093
#define elf_backend_object_p                    m32r_elf_object_p
4094
#define elf_backend_final_write_processing      m32r_elf_final_write_processing
4095
#define bfd_elf32_bfd_merge_private_bfd_data    m32r_elf_merge_private_bfd_data
4096
#define bfd_elf32_bfd_set_private_flags         m32r_elf_set_private_flags
4097
#define bfd_elf32_bfd_print_private_bfd_data    m32r_elf_print_private_bfd_data
4098
#define elf_backend_special_sections            m32r_elf_special_sections
4099
 
4100
#include "elf32-target.h"
4101
 
4102
#undef  ELF_MAXPAGESIZE
4103
#define ELF_MAXPAGESIZE         0x1000
4104
 
4105
#undef  TARGET_BIG_SYM
4106
#define TARGET_BIG_SYM          bfd_elf32_m32rlin_vec
4107
#undef  TARGET_BIG_NAME
4108
#define TARGET_BIG_NAME         "elf32-m32r-linux"
4109
#undef  TARGET_LITTLE_SYM
4110
#define TARGET_LITTLE_SYM       bfd_elf32_m32rlelin_vec
4111
#undef  TARGET_LITTLE_NAME
4112
#define TARGET_LITTLE_NAME      "elf32-m32rle-linux"
4113
#undef  elf32_bed
4114
#define elf32_bed               elf32_m32r_lin_bed
4115
 
4116
#include "elf32-target.h"
4117
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.