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

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [bfd/] [elf32-dlx.c] - Blame information for rev 156

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 38 julius
/* DLX specific support for 32-bit ELF
2
   Copyright 2002, 2003, 2004, 2005, 2007
3
   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/dlx.h"
27
 
28
#define USE_REL 1
29
 
30
#define bfd_elf32_bfd_reloc_type_lookup elf32_dlx_reloc_type_lookup
31
#define bfd_elf32_bfd_reloc_name_lookup elf32_dlx_reloc_name_lookup
32
#define elf_info_to_howto               elf32_dlx_info_to_howto
33
#define elf_info_to_howto_rel           elf32_dlx_info_to_howto_rel
34
#define elf_backend_check_relocs        elf32_dlx_check_relocs
35
 
36
/* The gas default behavior is not to preform the %hi modifier so that the
37
   GNU assembler can have the lower 16 bits offset placed in the insn, BUT
38
   we do like the gas to indicate it is %hi reloc type so when we in the link
39
   loader phase we can have the corrected hi16 vale replace the buggous lo16
40
   value that was placed there by gas.  */
41
 
42
static int skip_dlx_elf_hi16_reloc = 0;
43
 
44
extern int set_dlx_skip_hi16_flag (int);
45
 
46
int
47
set_dlx_skip_hi16_flag (int flag)
48
{
49
  skip_dlx_elf_hi16_reloc = flag;
50
  return flag;
51
}
52
 
53
static bfd_reloc_status_type
54
_bfd_dlx_elf_hi16_reloc (bfd *abfd,
55
                         arelent *reloc_entry,
56
                         asymbol *symbol,
57
                         void * data,
58
                         asection *input_section,
59
                         bfd *output_bfd,
60
                         char **error_message)
61
{
62
  bfd_reloc_status_type ret;
63
  bfd_vma relocation;
64
 
65
  /* If the skip flag is set then we simply do the generic relocating, this
66
     is more of a hack for dlx gas/gld, so we do not need to do the %hi/%lo
67
     fixup like mips gld did.   */
68
  if (skip_dlx_elf_hi16_reloc)
69
    return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
70
                          input_section, output_bfd, error_message);
71
 
72
  /* If we're relocating, and this an external symbol, we don't want
73
     to change anything.  */
74
  if (output_bfd != (bfd *) NULL
75
      && (symbol->flags & BSF_SECTION_SYM) == 0
76
      && reloc_entry->addend == 0)
77
    {
78
      reloc_entry->address += input_section->output_offset;
79
      return bfd_reloc_ok;
80
    }
81
 
82
  ret = bfd_reloc_ok;
83
 
84
  if (bfd_is_und_section (symbol->section)
85
      && output_bfd == (bfd *) NULL)
86
    ret = bfd_reloc_undefined;
87
 
88
  relocation = (bfd_is_com_section (symbol->section)) ? 0 : symbol->value;
89
  relocation += symbol->section->output_section->vma;
90
  relocation += symbol->section->output_offset;
91
  relocation += reloc_entry->addend;
92
  relocation += bfd_get_16 (abfd, (bfd_byte *)data + reloc_entry->address);
93
 
94
  if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
95
    return bfd_reloc_outofrange;
96
 
97
  bfd_put_16 (abfd, (short)((relocation >> 16) & 0xFFFF),
98
              (bfd_byte *)data + reloc_entry->address);
99
 
100
  return ret;
101
}
102
 
103
/* ELF relocs are against symbols.  If we are producing relocatable
104
   output, and the reloc is against an external symbol, and nothing
105
   has given us any additional addend, the resulting reloc will also
106
   be against the same symbol.  In such a case, we don't want to
107
   change anything about the way the reloc is handled, since it will
108
   all be done at final link time.  Rather than put special case code
109
   into bfd_perform_relocation, all the reloc types use this howto
110
   function.  It just short circuits the reloc if producing
111
   relocatable output against an external symbol.  */
112
 
113
static bfd_reloc_status_type
114
elf32_dlx_relocate16 (bfd *abfd,
115
                      arelent *reloc_entry,
116
                      asymbol *symbol,
117
                      void * data,
118
                      asection *input_section,
119
                      bfd *output_bfd,
120
                      char **error_message ATTRIBUTE_UNUSED)
121
{
122
  unsigned long insn, vallo, allignment;
123
  int           val;
124
 
125
  /* HACK: I think this first condition is necessary when producing
126
     relocatable output.  After the end of HACK, the code is identical
127
     to bfd_elf_generic_reloc().  I would _guess_ the first change
128
     belongs there rather than here.  martindo 1998-10-23.  */
129
 
130
  if (skip_dlx_elf_hi16_reloc)
131
    return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
132
                                 input_section, output_bfd, error_message);
133
 
134
  /* Check undefined section and undefined symbols.  */
135
  if (bfd_is_und_section (symbol->section)
136
      && output_bfd == (bfd *) NULL)
137
    return bfd_reloc_undefined;
138
 
139
  /* Can not support a long jump to sections other then .text.  */
140
  if (strcmp (input_section->name, symbol->section->output_section->name) != 0)
141
    {
142
      fprintf (stderr,
143
               "BFD Link Error: branch (PC rel16) to section (%s) not supported\n",
144
               symbol->section->output_section->name);
145
      return bfd_reloc_undefined;
146
    }
147
 
148
  insn  = bfd_get_32 (abfd, (bfd_byte *)data + reloc_entry->address);
149
  allignment = 1 << (input_section->output_section->alignment_power - 1);
150
  vallo = insn & 0x0000FFFF;
151
 
152
  if (vallo & 0x8000)
153
    vallo = ~(vallo | 0xFFFF0000) + 1;
154
 
155
  /* vallo points to the vma of next instruction.  */
156
  vallo += (((unsigned long)(input_section->output_section->vma +
157
                           input_section->output_offset) +
158
            allignment) & ~allignment);
159
 
160
  /* val is the displacement (PC relative to next instruction).  */
161
  val =  (symbol->section->output_offset +
162
          symbol->section->output_section->vma +
163
          symbol->value) - vallo;
164
 
165
  if (abs ((int) val) > 0x00007FFF)
166
    return bfd_reloc_outofrange;
167
 
168
  insn  = (insn & 0xFFFF0000) | (val & 0x0000FFFF);
169
 
170
  bfd_put_32 (abfd, insn,
171
              (bfd_byte *) data + reloc_entry->address);
172
 
173
  return bfd_reloc_ok;
174
}
175
 
176
static bfd_reloc_status_type
177
elf32_dlx_relocate26 (bfd *abfd,
178
                      arelent *reloc_entry,
179
                      asymbol *symbol,
180
                      void * data,
181
                      asection *input_section,
182
                      bfd *output_bfd,
183
                      char **error_message ATTRIBUTE_UNUSED)
184
{
185
  unsigned long insn, vallo, allignment;
186
  int           val;
187
 
188
  /* HACK: I think this first condition is necessary when producing
189
     relocatable output.  After the end of HACK, the code is identical
190
     to bfd_elf_generic_reloc().  I would _guess_ the first change
191
     belongs there rather than here.  martindo 1998-10-23.  */
192
 
193
  if (skip_dlx_elf_hi16_reloc)
194
    return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
195
                                 input_section, output_bfd, error_message);
196
 
197
  /* Check undefined section and undefined symbols.  */
198
  if (bfd_is_und_section (symbol->section)
199
      && output_bfd == (bfd *) NULL)
200
    return bfd_reloc_undefined;
201
 
202
  /* Can not support a long jump to sections other then .text   */
203
  if (strcmp (input_section->name, symbol->section->output_section->name) != 0)
204
    {
205
      fprintf (stderr,
206
               "BFD Link Error: jump (PC rel26) to section (%s) not supported\n",
207
               symbol->section->output_section->name);
208
      return bfd_reloc_undefined;
209
    }
210
 
211
  insn  = bfd_get_32 (abfd, (bfd_byte *)data + reloc_entry->address);
212
  allignment = 1 << (input_section->output_section->alignment_power - 1);
213
  vallo = insn & 0x03FFFFFF;
214
 
215
  if (vallo & 0x03000000)
216
    vallo = ~(vallo | 0xFC000000) + 1;
217
 
218
  /* vallo is the vma for the next instruction.  */
219
  vallo += (((unsigned long) (input_section->output_section->vma +
220
                              input_section->output_offset) +
221
             allignment) & ~allignment);
222
 
223
  /* val is the displacement (PC relative to next instruction).  */
224
  val = (symbol->section->output_offset +
225
         symbol->section->output_section->vma + symbol->value)
226
    - vallo;
227
 
228
  if (abs ((int) val) > 0x01FFFFFF)
229
    return bfd_reloc_outofrange;
230
 
231
  insn  = (insn & 0xFC000000) | (val & 0x03FFFFFF);
232
  bfd_put_32 (abfd, insn,
233
              (bfd_byte *) data + reloc_entry->address);
234
 
235
  return bfd_reloc_ok;
236
}
237
 
238
static reloc_howto_type dlx_elf_howto_table[]=
239
{
240
  /* No relocation.  */
241
  HOWTO (R_DLX_NONE,            /* Type. */
242
         0,                     /* Rightshift.  */
243
         0,                     /* size (0 = byte, 1 = short, 2 = long).  */
244
         0,                     /* Bitsize.  */
245
         FALSE,                 /* PC_relative.  */
246
         0,                     /* Bitpos.  */
247
         complain_overflow_dont,/* Complain_on_overflow.  */
248
         bfd_elf_generic_reloc, /* Special_function.  */
249
         "R_DLX_NONE",          /* Name.  */
250
         FALSE,                 /* Partial_inplace.  */
251
         0,                     /* Src_mask.  */
252
         0,                     /* Dst_mask.  */
253
         FALSE),                /* PCrel_offset.  */
254
 
255
  /* 8 bit relocation.  */
256
  HOWTO (R_DLX_RELOC_8,         /* Type. */
257
         0,                     /* Rightshift.  */
258
         0,                     /* Size (0 = byte, 1 = short, 2 = long).  */
259
         8,                     /* Bitsize.  */
260
         FALSE,                 /* PC_relative.  */
261
         0,                     /* Bitpos.  */
262
         complain_overflow_dont,/* Complain_on_overflow.  */
263
         bfd_elf_generic_reloc, /* Special_function.  */
264
         "R_DLX_RELOC_8",       /* Name.  */
265
         TRUE,                  /* Partial_inplace.  */
266
         0xff,                  /* Src_mask.  */
267
         0xff,                  /* Dst_mask.  */
268
         FALSE),                /* PCrel_offset.  */
269
 
270
  /* 16 bit relocation.  */
271
  HOWTO (R_DLX_RELOC_16,        /* Type. */
272
         0,                     /* Rightshift.  */
273
         1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
274
         16,                    /* Bitsize.  */
275
         FALSE,                 /* PC_relative.  */
276
         0,                     /* Bitpos.  */
277
         complain_overflow_dont,/* Complain_on_overflow.  */
278
         bfd_elf_generic_reloc, /* Special_function.  */
279
         "R_DLX_RELOC_16",      /* Name.  */
280
         TRUE,                  /* Partial_inplace.  */
281
         0xffff,                /* Src_mask.  */
282
         0xffff,                /* Dst_mask.  */
283
         FALSE),                /* PCrel_offset.  */
284
 
285
  /* 32 bit relocation.  */
286
  HOWTO (R_DLX_RELOC_32,        /* Type. */
287
         0,                     /* Rightshift.  */
288
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
289
         32,                    /* Bitsize.  */
290
         FALSE,                 /* PC_relative.  */
291
         0,                     /* Bitpos.  */
292
         complain_overflow_dont,/* Complain_on_overflow.  */
293
         bfd_elf_generic_reloc, /* Special_function.  */
294
         "R_DLX_RELOC_32",      /* Name.  */
295
         TRUE,                  /* Partial_inplace.  */
296
         0xffffffff,            /* Src_mask.  */
297
         0xffffffff,            /* Dst_mask.  */
298
         FALSE),                /* PCrel_offset.  */
299
 
300
  /* GNU extension to record C++ vtable hierarchy.  */
301
  HOWTO (R_DLX_GNU_VTINHERIT,   /* Type. */
302
         0,                      /* Rightshift.  */
303
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
304
         0,                      /* Bitsize.  */
305
         FALSE,                 /* PC_relative.  */
306
         0,                      /* Bitpos.  */
307
         complain_overflow_dont,/* Complain_on_overflow.  */
308
         NULL,                  /* Special_function.  */
309
         "R_DLX_GNU_VTINHERIT", /* Name.  */
310
         FALSE,                 /* Partial_inplace.  */
311
         0,                      /* Src_mask.  */
312
         0,                      /* Dst_mask.  */
313
         FALSE),                /* PCrel_offset.  */
314
 
315
  /* GNU extension to record C++ vtable member usage.  */
316
  HOWTO (R_DLX_GNU_VTENTRY,     /* Type. */
317
         0,                      /* Rightshift.  */
318
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
319
         0,                      /* Bitsize.  */
320
         FALSE,                 /* PC_relative.  */
321
         0,                      /* Bitpos.  */
322
         complain_overflow_dont,/* Complain_on_overflow.  */
323
         _bfd_elf_rel_vtable_reloc_fn,/* Special_function.  */
324
         "R_DLX_GNU_VTENTRY",   /* Name.  */
325
         FALSE,                 /* Partial_inplace.  */
326
         0,                      /* Src_mask.  */
327
         0,                      /* Dst_mask.  */
328
         FALSE)                 /* PCrel_offset.  */
329
};
330
 
331
/* 16 bit offset for pc-relative branches.  */
332
static reloc_howto_type elf_dlx_gnu_rel16_s2 =
333
  HOWTO (R_DLX_RELOC_16_PCREL,  /* Type. */
334
         0,                     /* Rightshift.  */
335
         1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
336
         16,                    /* Bitsize.  */
337
         TRUE,                  /* PC_relative.  */
338
         0,                     /* Bitpos.  */
339
         complain_overflow_signed, /* Complain_on_overflow.  */
340
         elf32_dlx_relocate16,  /* Special_function.  */
341
         "R_DLX_RELOC_16_PCREL",/* Name.  */
342
         TRUE,                  /* Partial_inplace.  */
343
         0xffff,                /* Src_mask.  */
344
         0xffff,                /* Dst_mask.  */
345
         TRUE);                 /* PCrel_offset.  */
346
 
347
/* 26 bit offset for pc-relative branches.  */
348
static reloc_howto_type elf_dlx_gnu_rel26_s2 =
349
  HOWTO (R_DLX_RELOC_26_PCREL,  /* Type. */
350
         0,                     /* Rightshift.  */
351
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
352
         26,                    /* Bitsize.  */
353
         TRUE,                  /* PC_relative.  */
354
         0,                     /* Bitpos.  */
355
         complain_overflow_dont,/* Complain_on_overflow.  */
356
         elf32_dlx_relocate26,  /* Special_function.  */
357
         "R_DLX_RELOC_26_PCREL",/* Name.  */
358
         TRUE,                  /* Partial_inplace.  */
359
         0xffff,                /* Src_mask.  */
360
         0xffff,                /* Dst_mask.  */
361
         TRUE);                 /* PCrel_offset.  */
362
 
363
/* High 16 bits of symbol value.  */
364
static reloc_howto_type elf_dlx_reloc_16_hi =
365
  HOWTO (R_DLX_RELOC_16_HI,     /* Type. */
366
         16,                    /* Rightshift.  */
367
         2,                     /* Size (0 = byte, 1 = short, 2 = long).  */
368
         32,                    /* Bitsize.  */
369
         FALSE,                 /* PC_relative.  */
370
         0,                     /* Bitpos.  */
371
         complain_overflow_dont,/* Complain_on_overflow.  */
372
         _bfd_dlx_elf_hi16_reloc,/* Special_function.  */
373
         "R_DLX_RELOC_16_HI",   /* Name.  */
374
         TRUE,                  /* Partial_inplace.  */
375
         0xFFFF,                /* Src_mask.  */
376
         0xffff,                /* Dst_mask.  */
377
         FALSE);                /* PCrel_offset.  */
378
 
379
  /* Low 16 bits of symbol value.  */
380
static reloc_howto_type elf_dlx_reloc_16_lo =
381
  HOWTO (R_DLX_RELOC_16_LO,     /* Type. */
382
         0,                     /* Rightshift.  */
383
         1,                     /* Size (0 = byte, 1 = short, 2 = long).  */
384
         16,                    /* Bitsize.  */
385
         FALSE,                 /* PC_relative.  */
386
         0,                     /* Bitpos.  */
387
         complain_overflow_dont,/* Complain_on_overflow.  */
388
         bfd_elf_generic_reloc, /* Special_function.  */
389
         "R_DLX_RELOC_16_LO",   /* Name.  */
390
         TRUE,                  /* Partial_inplace.  */
391
         0xffff,                /* Src_mask.  */
392
         0xffff,                /* Dst_mask.  */
393
         FALSE);                /* PCrel_offset.  */
394
 
395
/* A mapping from BFD reloc types to DLX ELF reloc types.
396
   Stolen from elf32-mips.c.
397
 
398
   More about this table - for dlx elf relocation we do not really
399
   need this table, if we have a rtype defined in this table will
400
   caused tc_gen_relocate confused and die on us, but if we remove
401
   this table it will caused more problem, so for now simple solution
402
   is to remove those entries which may cause problem.  */
403
struct elf_reloc_map
404
{
405
  bfd_reloc_code_real_type bfd_reloc_val;
406
  enum elf_dlx_reloc_type elf_reloc_val;
407
};
408
 
409
static const struct elf_reloc_map dlx_reloc_map[] =
410
{
411
  { BFD_RELOC_NONE,           R_DLX_NONE },
412
  { BFD_RELOC_16,             R_DLX_RELOC_16 },
413
  { BFD_RELOC_32,             R_DLX_RELOC_32 },
414
  { BFD_RELOC_DLX_HI16_S,     R_DLX_RELOC_16_HI },
415
  { BFD_RELOC_DLX_LO16,       R_DLX_RELOC_16_LO },
416
  { BFD_RELOC_VTABLE_INHERIT,   R_DLX_GNU_VTINHERIT },
417
  { BFD_RELOC_VTABLE_ENTRY,     R_DLX_GNU_VTENTRY }
418
};
419
 
420
/* Look through the relocs for a section during the first phase.
421
   Since we don't do .gots or .plts, we just need to consider the
422
   virtual table relocs for gc.  */
423
 
424
static bfd_boolean
425
elf32_dlx_check_relocs (bfd *abfd,
426
                        struct bfd_link_info *info,
427
                        asection *sec,
428
                        const Elf_Internal_Rela *relocs)
429
{
430
  Elf_Internal_Shdr *symtab_hdr;
431
  struct elf_link_hash_entry **sym_hashes;
432
  const Elf_Internal_Rela *rel;
433
  const Elf_Internal_Rela *rel_end;
434
 
435
  if (info->relocatable)
436
    return TRUE;
437
 
438
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
439
  sym_hashes = elf_sym_hashes (abfd);
440
 
441
  rel_end = relocs + sec->reloc_count;
442
  for (rel = relocs; rel < rel_end; rel++)
443
    {
444
      struct elf_link_hash_entry *h;
445
      unsigned long r_symndx;
446
 
447
      r_symndx = ELF32_R_SYM (rel->r_info);
448
      if (r_symndx < symtab_hdr->sh_info)
449
        h = NULL;
450
      else
451
        {
452
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
453
          while (h->root.type == bfd_link_hash_indirect
454
                 || h->root.type == bfd_link_hash_warning)
455
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
456
        }
457
 
458
      switch (ELF32_R_TYPE (rel->r_info))
459
        {
460
        /* This relocation describes the C++ object vtable hierarchy.
461
           Reconstruct it for later use during GC.  */
462
        case R_DLX_GNU_VTINHERIT:
463
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
464
            return FALSE;
465
          break;
466
 
467
        /* This relocation describes which C++ vtable entries are actually
468
           used.  Record for later use during GC.  */
469
        case R_DLX_GNU_VTENTRY:
470
          BFD_ASSERT (h != NULL);
471
          if (h != NULL
472
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
473
            return FALSE;
474
          break;
475
        }
476
    }
477
 
478
  return TRUE;
479
}
480
 
481
/* Given a BFD reloc type, return a howto structure.  */
482
 
483
static reloc_howto_type *
484
elf32_dlx_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
485
                             bfd_reloc_code_real_type code)
486
{
487
  unsigned int i;
488
 
489
  for (i = 0; i < sizeof (dlx_reloc_map) / sizeof (struct elf_reloc_map); i++)
490
    if (dlx_reloc_map[i].bfd_reloc_val == code)
491
      return &dlx_elf_howto_table[(int) dlx_reloc_map[i].elf_reloc_val];
492
 
493
  switch (code)
494
    {
495
    default:
496
      bfd_set_error (bfd_error_bad_value);
497
      return NULL;
498
    case BFD_RELOC_16_PCREL_S2:
499
      return &elf_dlx_gnu_rel16_s2;
500
    case BFD_RELOC_DLX_JMP26:
501
      return &elf_dlx_gnu_rel26_s2;
502
    case BFD_RELOC_HI16_S:
503
      return &elf_dlx_reloc_16_hi;
504
    case BFD_RELOC_LO16:
505
      return &elf_dlx_reloc_16_lo;
506
    }
507
}
508
 
509
static reloc_howto_type *
510
elf32_dlx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
511
                             const char *r_name)
512
{
513
  unsigned int i;
514
 
515
  for (i = 0;
516
       i < sizeof (dlx_elf_howto_table) / sizeof (dlx_elf_howto_table[0]);
517
       i++)
518
    if (dlx_elf_howto_table[i].name != NULL
519
        && strcasecmp (dlx_elf_howto_table[i].name, r_name) == 0)
520
      return &dlx_elf_howto_table[i];
521
 
522
  if (strcasecmp (elf_dlx_gnu_rel16_s2.name, r_name) == 0)
523
    return &elf_dlx_gnu_rel16_s2;
524
  if (strcasecmp (elf_dlx_gnu_rel26_s2.name, r_name) == 0)
525
    return &elf_dlx_gnu_rel26_s2;
526
  if (strcasecmp (elf_dlx_reloc_16_hi.name, r_name) == 0)
527
    return &elf_dlx_reloc_16_hi;
528
  if (strcasecmp (elf_dlx_reloc_16_lo.name, r_name) == 0)
529
    return &elf_dlx_reloc_16_lo;
530
 
531
  return NULL;
532
}
533
 
534
static reloc_howto_type *
535
dlx_rtype_to_howto (unsigned int r_type)
536
{
537
  switch (r_type)
538
    {
539
    case R_DLX_RELOC_16_PCREL:
540
      return & elf_dlx_gnu_rel16_s2;
541
    case R_DLX_RELOC_26_PCREL:
542
      return & elf_dlx_gnu_rel26_s2;
543
    case R_DLX_RELOC_16_HI:
544
      return & elf_dlx_reloc_16_hi;
545
    case R_DLX_RELOC_16_LO:
546
      return & elf_dlx_reloc_16_lo;
547
    default:
548
      BFD_ASSERT (r_type < (unsigned int) R_DLX_max);
549
      return & dlx_elf_howto_table[r_type];
550
    }
551
}
552
 
553
static void
554
elf32_dlx_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED,
555
                         arelent * cache_ptr ATTRIBUTE_UNUSED,
556
                         Elf_Internal_Rela * dst ATTRIBUTE_UNUSED)
557
{
558
  abort ();
559
}
560
 
561
static void
562
elf32_dlx_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
563
                             arelent *cache_ptr,
564
                             Elf_Internal_Rela *dst)
565
{
566
  unsigned int r_type;
567
 
568
  r_type = ELF32_R_TYPE (dst->r_info);
569
  cache_ptr->howto = dlx_rtype_to_howto (r_type);
570
  return;
571
}
572
 
573
#define TARGET_BIG_SYM          bfd_elf32_dlx_big_vec
574
#define TARGET_BIG_NAME         "elf32-dlx"
575
#define ELF_ARCH                bfd_arch_dlx
576
#define ELF_MACHINE_CODE        EM_DLX
577
#define ELF_MAXPAGESIZE         1 /* FIXME: This number is wrong,  It should be the page size in bytes.  */
578
 
579
#include "elf32-target.h"

powered by: WebSVN 2.1.0

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