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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [elf32-frv.c] - Blame information for rev 284

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1 14 khays
/* FRV-specific support for 32-bit ELF.
2
   Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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/frv.h"
27
#include "dwarf2.h"
28
#include "hashtab.h"
29
 
30
/* Forward declarations.  */
31
static bfd_reloc_status_type elf32_frv_relocate_lo16
32
  PARAMS ((bfd *,  Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33
static bfd_reloc_status_type elf32_frv_relocate_hi16
34
  PARAMS ((bfd *,  Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35
static bfd_reloc_status_type elf32_frv_relocate_label24
36
  PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
37
static bfd_reloc_status_type elf32_frv_relocate_gprel12
38
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
39
           bfd_byte *, bfd_vma));
40
static bfd_reloc_status_type elf32_frv_relocate_gprelu12
41
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
42
           bfd_byte *, bfd_vma));
43
static bfd_reloc_status_type elf32_frv_relocate_gprello
44
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
45
           bfd_byte *, bfd_vma));
46
static bfd_reloc_status_type elf32_frv_relocate_gprelhi
47
  PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
48
           bfd_byte *, bfd_vma));
49
static reloc_howto_type *frv_reloc_type_lookup
50
  PARAMS ((bfd *, bfd_reloc_code_real_type));
51
static void frv_info_to_howto_rela
52
  PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
53
static bfd_boolean elf32_frv_relocate_section
54
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
55
           Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
56
static bfd_boolean elf32_frv_add_symbol_hook
57
  PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
58
            const char **, flagword *, asection **, bfd_vma *));
59
static bfd_reloc_status_type frv_final_link_relocate
60
  PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
61
           Elf_Internal_Rela *, bfd_vma));
62
static bfd_boolean elf32_frv_check_relocs
63
  PARAMS ((bfd *, struct bfd_link_info *, asection *,
64
           const Elf_Internal_Rela *));
65
static int elf32_frv_machine
66
  PARAMS ((bfd *));
67
static bfd_boolean elf32_frv_object_p
68
  PARAMS ((bfd *));
69
static bfd_boolean frv_elf_set_private_flags
70
  PARAMS ((bfd *, flagword));
71
static bfd_boolean frv_elf_copy_private_bfd_data
72
  PARAMS ((bfd *, bfd *));
73
static bfd_boolean frv_elf_merge_private_bfd_data
74
  PARAMS ((bfd *, bfd *));
75
static bfd_boolean frv_elf_print_private_bfd_data
76
  PARAMS ((bfd *, PTR));
77
static bfd_boolean elf32_frv_grok_prstatus (bfd * abfd,
78
                                            Elf_Internal_Note * note);
79
static bfd_boolean elf32_frv_grok_psinfo (bfd * abfd,
80
                                          Elf_Internal_Note * note);
81
 
82
static reloc_howto_type elf32_frv_howto_table [] =
83
{
84
  /* This reloc does nothing.  */
85
  HOWTO (R_FRV_NONE,            /* type */
86
         0,                      /* rightshift */
87
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
88
         32,                    /* bitsize */
89
         FALSE,                 /* pc_relative */
90
         0,                      /* bitpos */
91
         complain_overflow_bitfield, /* complain_on_overflow */
92
         bfd_elf_generic_reloc, /* special_function */
93
         "R_FRV_NONE",          /* name */
94
         FALSE,                 /* partial_inplace */
95
         0,                      /* src_mask */
96
         0,                      /* dst_mask */
97
         FALSE),                /* pcrel_offset */
98
 
99
  /* A 32 bit absolute relocation.  */
100
  HOWTO (R_FRV_32,              /* type */
101
         0,                      /* rightshift */
102
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
103
         32,                    /* bitsize */
104
         FALSE,                 /* pc_relative */
105
         0,                      /* bitpos */
106
         complain_overflow_bitfield, /* complain_on_overflow */
107
         bfd_elf_generic_reloc, /* special_function */
108
         "R_FRV_32",            /* name */
109
         FALSE,                 /* partial_inplace */
110
         0xffffffff,            /* src_mask */
111
         0xffffffff,            /* dst_mask */
112
         FALSE),                /* pcrel_offset */
113
 
114
  /* A 16 bit pc-relative relocation.  */
115
  HOWTO (R_FRV_LABEL16,         /* type */
116
         2,                     /* rightshift */
117
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
118
         16,                    /* bitsize */
119
         TRUE,                  /* pc_relative */
120
         0,                      /* bitpos */
121
         complain_overflow_signed, /* complain_on_overflow */
122
         bfd_elf_generic_reloc, /* special_function */
123
         "R_FRV_LABEL16",       /* name */
124
         FALSE,                 /* partial_inplace */
125
         0xffff,                /* src_mask */
126
         0xffff,                /* dst_mask */
127
         TRUE),                 /* pcrel_offset */
128
 
129
  /* A 24-bit pc-relative relocation.  */
130
  HOWTO (R_FRV_LABEL24,         /* type */
131
         2,                     /* rightshift */
132
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
133
         26,                    /* bitsize */
134
         TRUE,                  /* pc_relative */
135
         0,                      /* bitpos */
136
         complain_overflow_bitfield, /* complain_on_overflow */
137
         bfd_elf_generic_reloc, /* special_function */
138
         "R_FRV_LABEL24",       /* name */
139
         FALSE,                 /* partial_inplace */
140
         0x7e03ffff,            /* src_mask */
141
         0x7e03ffff,            /* dst_mask */
142
         TRUE),                 /* pcrel_offset */
143
 
144
  HOWTO (R_FRV_LO16,            /* type */
145
         0,                      /* rightshift */
146
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
147
         16,                    /* bitsize */
148
         FALSE,                 /* pc_relative */
149
         0,                      /* bitpos */
150
         complain_overflow_dont, /* complain_on_overflow */
151
         bfd_elf_generic_reloc, /* special_function */
152
         "R_FRV_LO16",          /* name */
153
         FALSE,                 /* partial_inplace */
154
         0xffff,                /* src_mask */
155
         0xffff,                /* dst_mask */
156
         FALSE),                /* pcrel_offset */
157
 
158
  HOWTO (R_FRV_HI16,            /* type */
159
         0,                      /* rightshift */
160
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
161
         16,                    /* bitsize */
162
         FALSE,                 /* pc_relative */
163
         0,                      /* bitpos */
164
         complain_overflow_dont, /* complain_on_overflow */
165
         bfd_elf_generic_reloc, /* special_function */
166
         "R_FRV_HI16",          /* name */
167
         FALSE,                 /* partial_inplace */
168
         0xffff,                /* src_mask */
169
         0xffff,                /* dst_mask */
170
         FALSE),                /* pcrel_offset */
171
 
172
  HOWTO (R_FRV_GPREL12,         /* type */
173
         0,                      /* rightshift */
174
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
175
         12,                    /* bitsize */
176
         FALSE,                 /* pc_relative */
177
         0,                      /* bitpos */
178
         complain_overflow_dont, /* complain_on_overflow */
179
         bfd_elf_generic_reloc, /* special_function */
180
         "R_FRV_GPREL12",       /* name */
181
         FALSE,                 /* partial_inplace */
182
         0xfff,                 /* src_mask */
183
         0xfff,                 /* dst_mask */
184
         FALSE),                /* pcrel_offset */
185
 
186
  HOWTO (R_FRV_GPRELU12,        /* type */
187
         0,                      /* rightshift */
188
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
189
         12,                    /* bitsize */
190
         FALSE,                 /* pc_relative */
191
         0,                      /* bitpos */
192
         complain_overflow_dont, /* complain_on_overflow */
193
         bfd_elf_generic_reloc, /* special_function */
194
         "R_FRV_GPRELU12",      /* name */
195
         FALSE,                 /* partial_inplace */
196
         0xfff,                 /* src_mask */
197
         0x3f03f,               /* dst_mask */
198
         FALSE),                /* pcrel_offset */
199
 
200
  HOWTO (R_FRV_GPREL32,         /* type */
201
         0,                      /* rightshift */
202
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
203
         32,                    /* bitsize */
204
         FALSE,                 /* pc_relative */
205
         0,                      /* bitpos */
206
         complain_overflow_dont, /* complain_on_overflow */
207
         bfd_elf_generic_reloc, /* special_function */
208
         "R_FRV_GPREL32",       /* name */
209
         FALSE,                 /* partial_inplace */
210
         0xffffffff,            /* src_mask */
211
         0xffffffff,            /* dst_mask */
212
         FALSE),                /* pcrel_offset */
213
 
214
  HOWTO (R_FRV_GPRELHI,         /* type */
215
         0,                      /* rightshift */
216
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
217
         16,                    /* bitsize */
218
         FALSE,                 /* pc_relative */
219
         0,                      /* bitpos */
220
         complain_overflow_dont, /* complain_on_overflow */
221
         bfd_elf_generic_reloc, /* special_function */
222
         "R_FRV_GPRELHI",       /* name */
223
         FALSE,                 /* partial_inplace */
224
         0xffff,                /* src_mask */
225
         0xffff,                /* dst_mask */
226
         FALSE),                /* pcrel_offset */
227
 
228
  HOWTO (R_FRV_GPRELLO,         /* type */
229
         0,                      /* rightshift */
230
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
231
         16,                    /* bitsize */
232
         FALSE,                 /* pc_relative */
233
         0,                      /* bitpos */
234
         complain_overflow_dont, /* complain_on_overflow */
235
         bfd_elf_generic_reloc, /* special_function */
236
         "R_FRV_GPRELLO",       /* name */
237
         FALSE,                 /* partial_inplace */
238
         0xffff,                /* src_mask */
239
         0xffff,                /* dst_mask */
240
         FALSE),                /* pcrel_offset */
241
 
242
  /* A 12-bit signed operand with the GOT offset for the address of
243
     the symbol.  */
244
  HOWTO (R_FRV_GOT12,           /* type */
245
         0,                      /* rightshift */
246
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
247
         12,                    /* bitsize */
248
         FALSE,                 /* pc_relative */
249
         0,                      /* bitpos */
250
         complain_overflow_signed, /* complain_on_overflow */
251
         bfd_elf_generic_reloc, /* special_function */
252
         "R_FRV_GOT12",         /* name */
253
         FALSE,                 /* partial_inplace */
254
         0xfff,                 /* src_mask */
255
         0xfff,                 /* dst_mask */
256
         FALSE),                /* pcrel_offset */
257
 
258
  /* The upper 16 bits of the GOT offset for the address of the
259
     symbol.  */
260
  HOWTO (R_FRV_GOTHI,           /* type */
261
         0,                      /* rightshift */
262
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
263
         16,                    /* bitsize */
264
         FALSE,                 /* pc_relative */
265
         0,                      /* bitpos */
266
         complain_overflow_dont, /* complain_on_overflow */
267
         bfd_elf_generic_reloc, /* special_function */
268
         "R_FRV_GOTHI",         /* name */
269
         FALSE,                 /* partial_inplace */
270
         0xffff,                /* src_mask */
271
         0xffff,                /* dst_mask */
272
         FALSE),                /* pcrel_offset */
273
 
274
  /* The lower 16 bits of the GOT offset for the address of the
275
     symbol.  */
276
  HOWTO (R_FRV_GOTLO,           /* type */
277
         0,                      /* rightshift */
278
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
279
         16,                    /* bitsize */
280
         FALSE,                 /* pc_relative */
281
         0,                      /* bitpos */
282
         complain_overflow_dont, /* complain_on_overflow */
283
         bfd_elf_generic_reloc, /* special_function */
284
         "R_FRV_GOTLO",         /* name */
285
         FALSE,                 /* partial_inplace */
286
         0xffff,                /* src_mask */
287
         0xffff,                /* dst_mask */
288
         FALSE),                /* pcrel_offset */
289
 
290
  /* The 32-bit address of the canonical descriptor of a function.  */
291
  HOWTO (R_FRV_FUNCDESC,        /* type */
292
         0,                      /* rightshift */
293
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
294
         32,                    /* bitsize */
295
         FALSE,                 /* pc_relative */
296
         0,                      /* bitpos */
297
         complain_overflow_bitfield, /* complain_on_overflow */
298
         bfd_elf_generic_reloc, /* special_function */
299
         "R_FRV_FUNCDESC",      /* name */
300
         FALSE,                 /* partial_inplace */
301
         0xffffffff,            /* src_mask */
302
         0xffffffff,            /* dst_mask */
303
         FALSE),                /* pcrel_offset */
304
 
305
  /* A 12-bit signed operand with the GOT offset for the address of
306
     canonical descriptor of a function.  */
307
  HOWTO (R_FRV_FUNCDESC_GOT12,  /* type */
308
         0,                      /* rightshift */
309
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
310
         12,                    /* bitsize */
311
         FALSE,                 /* pc_relative */
312
         0,                      /* bitpos */
313
         complain_overflow_signed, /* complain_on_overflow */
314
         bfd_elf_generic_reloc, /* special_function */
315
         "R_FRV_FUNCDESC_GOT12", /* name */
316
         FALSE,                 /* partial_inplace */
317
         0xfff,                 /* src_mask */
318
         0xfff,                 /* dst_mask */
319
         FALSE),                /* pcrel_offset */
320
 
321
  /* The upper 16 bits of the GOT offset for the address of the
322
     canonical descriptor of a function.  */
323
  HOWTO (R_FRV_FUNCDESC_GOTHI,  /* type */
324
         0,                      /* rightshift */
325
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
326
         16,                    /* bitsize */
327
         FALSE,                 /* pc_relative */
328
         0,                      /* bitpos */
329
         complain_overflow_dont, /* complain_on_overflow */
330
         bfd_elf_generic_reloc, /* special_function */
331
         "R_FRV_FUNCDESC_GOTHI", /* name */
332
         FALSE,                 /* partial_inplace */
333
         0xffff,                /* src_mask */
334
         0xffff,                /* dst_mask */
335
         FALSE),                /* pcrel_offset */
336
 
337
  /* The lower 16 bits of the GOT offset for the address of the
338
     canonical descriptor of a function.  */
339
  HOWTO (R_FRV_FUNCDESC_GOTLO,  /* type */
340
         0,                      /* rightshift */
341
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
342
         16,                    /* bitsize */
343
         FALSE,                 /* pc_relative */
344
         0,                      /* bitpos */
345
         complain_overflow_dont, /* complain_on_overflow */
346
         bfd_elf_generic_reloc, /* special_function */
347
         "R_FRV_FUNCDESC_GOTLO", /* name */
348
         FALSE,                 /* partial_inplace */
349
         0xffff,                /* src_mask */
350
         0xffff,                /* dst_mask */
351
         FALSE),                /* pcrel_offset */
352
 
353
  /* The 64-bit descriptor of a function.  */
354
  HOWTO (R_FRV_FUNCDESC_VALUE,  /* type */
355
         0,                      /* rightshift */
356
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
357
         64,                    /* bitsize */
358
         FALSE,                 /* pc_relative */
359
         0,                      /* bitpos */
360
         complain_overflow_bitfield, /* complain_on_overflow */
361
         bfd_elf_generic_reloc, /* special_function */
362
         "R_FRV_FUNCDESC_VALUE", /* name */
363
         FALSE,                 /* partial_inplace */
364
         0xffffffff,            /* src_mask */
365
         0xffffffff,            /* dst_mask */
366
         FALSE),                /* pcrel_offset */
367
 
368
  /* A 12-bit signed operand with the GOT offset for the address of
369
     canonical descriptor of a function.  */
370
  HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
371
         0,                      /* rightshift */
372
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
373
         12,                    /* bitsize */
374
         FALSE,                 /* pc_relative */
375
         0,                      /* bitpos */
376
         complain_overflow_signed, /* complain_on_overflow */
377
         bfd_elf_generic_reloc, /* special_function */
378
         "R_FRV_FUNCDESC_GOTOFF12", /* name */
379
         FALSE,                 /* partial_inplace */
380
         0xfff,                 /* src_mask */
381
         0xfff,                 /* dst_mask */
382
         FALSE),                /* pcrel_offset */
383
 
384
  /* The upper 16 bits of the GOT offset for the address of the
385
     canonical descriptor of a function.  */
386
  HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
387
         0,                      /* rightshift */
388
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
389
         16,                    /* bitsize */
390
         FALSE,                 /* pc_relative */
391
         0,                      /* bitpos */
392
         complain_overflow_dont, /* complain_on_overflow */
393
         bfd_elf_generic_reloc, /* special_function */
394
         "R_FRV_FUNCDESC_GOTOFFHI", /* name */
395
         FALSE,                 /* partial_inplace */
396
         0xffff,                /* src_mask */
397
         0xffff,                /* dst_mask */
398
         FALSE),                /* pcrel_offset */
399
 
400
  /* The lower 16 bits of the GOT offset for the address of the
401
     canonical descriptor of a function.  */
402
  HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
403
         0,                      /* rightshift */
404
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
405
         16,                    /* bitsize */
406
         FALSE,                 /* pc_relative */
407
         0,                      /* bitpos */
408
         complain_overflow_dont, /* complain_on_overflow */
409
         bfd_elf_generic_reloc, /* special_function */
410
         "R_FRV_FUNCDESC_GOTOFFLO", /* name */
411
         FALSE,                 /* partial_inplace */
412
         0xffff,                /* src_mask */
413
         0xffff,                /* dst_mask */
414
         FALSE),                /* pcrel_offset */
415
 
416
  /* A 12-bit signed operand with the GOT offset for the address of
417
     the symbol.  */
418
  HOWTO (R_FRV_GOTOFF12,        /* type */
419
         0,                      /* rightshift */
420
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
421
         12,                    /* bitsize */
422
         FALSE,                 /* pc_relative */
423
         0,                      /* bitpos */
424
         complain_overflow_signed, /* complain_on_overflow */
425
         bfd_elf_generic_reloc, /* special_function */
426
         "R_FRV_GOTOFF12",      /* name */
427
         FALSE,                 /* partial_inplace */
428
         0xfff,                 /* src_mask */
429
         0xfff,                 /* dst_mask */
430
         FALSE),                /* pcrel_offset */
431
 
432
  /* The upper 16 bits of the GOT offset for the address of the
433
     symbol.  */
434
  HOWTO (R_FRV_GOTOFFHI,        /* type */
435
         0,                      /* rightshift */
436
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
437
         16,                    /* bitsize */
438
         FALSE,                 /* pc_relative */
439
         0,                      /* bitpos */
440
         complain_overflow_dont, /* complain_on_overflow */
441
         bfd_elf_generic_reloc, /* special_function */
442
         "R_FRV_GOTOFFHI",      /* name */
443
         FALSE,                 /* partial_inplace */
444
         0xffff,                /* src_mask */
445
         0xffff,                /* dst_mask */
446
         FALSE),                /* pcrel_offset */
447
 
448
  /* The lower 16 bits of the GOT offset for the address of the
449
     symbol.  */
450
  HOWTO (R_FRV_GOTOFFLO,        /* type */
451
         0,                      /* rightshift */
452
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
453
         16,                    /* bitsize */
454
         FALSE,                 /* pc_relative */
455
         0,                      /* bitpos */
456
         complain_overflow_dont, /* complain_on_overflow */
457
         bfd_elf_generic_reloc, /* special_function */
458
         "R_FRV_GOTOFFLO",      /* name */
459
         FALSE,                 /* partial_inplace */
460
         0xffff,                /* src_mask */
461
         0xffff,                /* dst_mask */
462
         FALSE),                /* pcrel_offset */
463
 
464
  /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
465
     a thread-local symbol.  If the symbol number is 0, it refers to
466
     the module.  */
467
  HOWTO (R_FRV_GETTLSOFF,       /* type */
468
         2,                     /* rightshift */
469
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
470
         26,                    /* bitsize */
471
         TRUE,                  /* pc_relative */
472
         0,                      /* bitpos */
473
         complain_overflow_bitfield, /* complain_on_overflow */
474
         bfd_elf_generic_reloc, /* special_function */
475
         "R_FRV_GETTLSOFF",     /* name */
476
         FALSE,                 /* partial_inplace */
477
         0x7e03ffff,            /* src_mask */
478
         0x7e03ffff,            /* dst_mask */
479
         TRUE),                 /* pcrel_offset */
480
 
481
  /* A 64-bit TLS descriptor for a symbol.  This relocation is only
482
     valid as a REL, dynamic relocation.  */
483
  HOWTO (R_FRV_TLSDESC_VALUE,   /* type */
484
         0,                      /* rightshift */
485
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
486
         64,                    /* bitsize */
487
         FALSE,                 /* pc_relative */
488
         0,                      /* bitpos */
489
         complain_overflow_bitfield, /* complain_on_overflow */
490
         bfd_elf_generic_reloc, /* special_function */
491
         "R_FRV_TLSDESC_VALUE", /* name */
492
         FALSE,                 /* partial_inplace */
493
         0xffffffff,            /* src_mask */
494
         0xffffffff,            /* dst_mask */
495
         FALSE),                /* pcrel_offset */
496
 
497
  /* A 12-bit signed operand with the GOT offset for the TLS
498
     descriptor of the symbol.  */
499
  HOWTO (R_FRV_GOTTLSDESC12,    /* type */
500
         0,                      /* rightshift */
501
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
502
         12,                    /* bitsize */
503
         FALSE,                 /* pc_relative */
504
         0,                      /* bitpos */
505
         complain_overflow_signed, /* complain_on_overflow */
506
         bfd_elf_generic_reloc, /* special_function */
507
         "R_FRV_GOTTLSDESC12",  /* name */
508
         FALSE,                 /* partial_inplace */
509
         0xfff,                 /* src_mask */
510
         0xfff,                 /* dst_mask */
511
         FALSE),                /* pcrel_offset */
512
 
513
  /* The upper 16 bits of the GOT offset for the TLS descriptor of the
514
     symbol.  */
515
  HOWTO (R_FRV_GOTTLSDESCHI,    /* type */
516
         0,                      /* rightshift */
517
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
518
         16,                    /* bitsize */
519
         FALSE,                 /* pc_relative */
520
         0,                      /* bitpos */
521
         complain_overflow_dont, /* complain_on_overflow */
522
         bfd_elf_generic_reloc, /* special_function */
523
         "R_FRV_GOTTLSDESCHI",  /* name */
524
         FALSE,                 /* partial_inplace */
525
         0xffff,                /* src_mask */
526
         0xffff,                /* dst_mask */
527
         FALSE),                /* pcrel_offset */
528
 
529
  /* The lower 16 bits of the GOT offset for the TLS descriptor of the
530
     symbol.  */
531
  HOWTO (R_FRV_GOTTLSDESCLO,    /* type */
532
         0,                      /* rightshift */
533
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
534
         16,                    /* bitsize */
535
         FALSE,                 /* pc_relative */
536
         0,                      /* bitpos */
537
         complain_overflow_dont, /* complain_on_overflow */
538
         bfd_elf_generic_reloc, /* special_function */
539
         "R_FRV_GOTTLSDESCLO",  /* name */
540
         FALSE,                 /* partial_inplace */
541
         0xffff,                /* src_mask */
542
         0xffff,                /* dst_mask */
543
         FALSE),                /* pcrel_offset */
544
 
545
  /* A 12-bit signed operand with the offset from the module base
546
     address to the thread-local symbol address.  */
547
  HOWTO (R_FRV_TLSMOFF12,        /* type */
548
         0,                      /* rightshift */
549
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
550
         12,                    /* bitsize */
551
         FALSE,                 /* pc_relative */
552
         0,                      /* bitpos */
553
         complain_overflow_signed, /* complain_on_overflow */
554
         bfd_elf_generic_reloc, /* special_function */
555
         "R_FRV_TLSMOFF12",     /* name */
556
         FALSE,                 /* partial_inplace */
557
         0xfff,                 /* src_mask */
558
         0xfff,                 /* dst_mask */
559
         FALSE),                /* pcrel_offset */
560
 
561
  /* The upper 16 bits of the offset from the module base address to
562
     the thread-local symbol address.  */
563
  HOWTO (R_FRV_TLSMOFFHI,       /* type */
564
         0,                      /* rightshift */
565
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
566
         16,                    /* bitsize */
567
         FALSE,                 /* pc_relative */
568
         0,                      /* bitpos */
569
         complain_overflow_dont, /* complain_on_overflow */
570
         bfd_elf_generic_reloc, /* special_function */
571
         "R_FRV_TLSMOFFHI",     /* name */
572
         FALSE,                 /* partial_inplace */
573
         0xffff,                /* src_mask */
574
         0xffff,                /* dst_mask */
575
         FALSE),                /* pcrel_offset */
576
 
577
  /* The lower 16 bits of the offset from the module base address to
578
     the thread-local symbol address.  */
579
  HOWTO (R_FRV_TLSMOFFLO,       /* type */
580
         0,                      /* rightshift */
581
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
582
         16,                    /* bitsize */
583
         FALSE,                 /* pc_relative */
584
         0,                      /* bitpos */
585
         complain_overflow_dont, /* complain_on_overflow */
586
         bfd_elf_generic_reloc, /* special_function */
587
         "R_FRV_TLSMOFFLO",     /* name */
588
         FALSE,                 /* partial_inplace */
589
         0xffff,                /* src_mask */
590
         0xffff,                /* dst_mask */
591
         FALSE),                /* pcrel_offset */
592
 
593
  /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
594
     for a symbol.  */
595
  HOWTO (R_FRV_GOTTLSOFF12,     /* type */
596
         0,                      /* rightshift */
597
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
598
         12,                    /* bitsize */
599
         FALSE,                 /* pc_relative */
600
         0,                      /* bitpos */
601
         complain_overflow_signed, /* complain_on_overflow */
602
         bfd_elf_generic_reloc, /* special_function */
603
         "R_FRV_GOTTLSOFF12",   /* name */
604
         FALSE,                 /* partial_inplace */
605
         0xfff,                 /* src_mask */
606
         0xfff,                 /* dst_mask */
607
         FALSE),                /* pcrel_offset */
608
 
609
  /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
610
     symbol.  */
611
  HOWTO (R_FRV_GOTTLSOFFHI,     /* type */
612
         0,                      /* rightshift */
613
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
614
         16,                    /* bitsize */
615
         FALSE,                 /* pc_relative */
616
         0,                      /* bitpos */
617
         complain_overflow_dont, /* complain_on_overflow */
618
         bfd_elf_generic_reloc, /* special_function */
619
         "R_FRV_GOTTLSOFFHI",   /* name */
620
         FALSE,                 /* partial_inplace */
621
         0xffff,                /* src_mask */
622
         0xffff,                /* dst_mask */
623
         FALSE),                /* pcrel_offset */
624
 
625
  /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
626
     symbol.  */
627
  HOWTO (R_FRV_GOTTLSOFFLO,     /* type */
628
         0,                      /* rightshift */
629
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
630
         16,                    /* bitsize */
631
         FALSE,                 /* pc_relative */
632
         0,                      /* bitpos */
633
         complain_overflow_dont, /* complain_on_overflow */
634
         bfd_elf_generic_reloc, /* special_function */
635
         "R_FRV_GOTTLSOFFLO",   /* name */
636
         FALSE,                 /* partial_inplace */
637
         0xffff,                /* src_mask */
638
         0xffff,                /* dst_mask */
639
         FALSE),                /* pcrel_offset */
640
 
641
  /* The 32-bit offset from the thread pointer (not the module base
642
     address) to a thread-local symbol.  */
643
  HOWTO (R_FRV_TLSOFF,          /* type */
644
         0,                      /* rightshift */
645
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
646
         32,                    /* bitsize */
647
         FALSE,                 /* pc_relative */
648
         0,                      /* bitpos */
649
         complain_overflow_dont, /* complain_on_overflow */
650
         bfd_elf_generic_reloc, /* special_function */
651
         "R_FRV_TLSOFF",        /* name */
652
         FALSE,                 /* partial_inplace */
653
         0xffffffff,            /* src_mask */
654
         0xffffffff,            /* dst_mask */
655
         FALSE),                /* pcrel_offset */
656
 
657
  /* An annotation for linker relaxation, that denotes the
658
     symbol+addend whose TLS descriptor is referenced by the sum of
659
     the two input registers of an ldd instruction.  */
660
  HOWTO (R_FRV_TLSDESC_RELAX,   /* type */
661
         0,                      /* rightshift */
662
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
663
         0,                      /* bitsize */
664
         FALSE,                 /* pc_relative */
665
         0,                      /* bitpos */
666
         complain_overflow_dont, /* complain_on_overflow */
667
         bfd_elf_generic_reloc, /* special_function */
668
         "R_FRV_TLSDESC_RELAX", /* name */
669
         FALSE,                 /* partial_inplace */
670
         0,                      /* src_mask */
671
         0,                      /* dst_mask */
672
         FALSE),                /* pcrel_offset */
673
 
674
  /* An annotation for linker relaxation, that denotes the
675
     symbol+addend whose TLS resolver entry point is given by the sum
676
     of the two register operands of an calll instruction.  */
677
  HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
678
         0,                      /* rightshift */
679
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
680
         0,                      /* bitsize */
681
         FALSE,                 /* pc_relative */
682
         0,                      /* bitpos */
683
         complain_overflow_dont, /* complain_on_overflow */
684
         bfd_elf_generic_reloc, /* special_function */
685
         "R_FRV_GETTLSOFF_RELAX", /* name */
686
         FALSE,                 /* partial_inplace */
687
         0,                      /* src_mask */
688
         0,                      /* dst_mask */
689
         FALSE),                /* pcrel_offset */
690
 
691
  /* An annotation for linker relaxation, that denotes the
692
     symbol+addend whose TLS offset GOT entry is given by the sum of
693
     the two input registers of an ld instruction.  */
694
  HOWTO (R_FRV_TLSOFF_RELAX,    /* type */
695
         0,                      /* rightshift */
696
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
697
         0,                      /* bitsize */
698
         FALSE,                 /* pc_relative */
699
         0,                      /* bitpos */
700
         complain_overflow_bitfield, /* complain_on_overflow */
701
         bfd_elf_generic_reloc, /* special_function */
702
         "R_FRV_TLSOFF_RELAX",  /* name */
703
         FALSE,                 /* partial_inplace */
704
         0,                      /* src_mask */
705
         0,                      /* dst_mask */
706
         FALSE),                /* pcrel_offset */
707
 
708
  /* A 32-bit offset from the module base address to
709
     the thread-local symbol address.  */
710
  HOWTO (R_FRV_TLSMOFF,         /* type */
711
         0,                      /* rightshift */
712
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
713
         32,                    /* bitsize */
714
         FALSE,                 /* pc_relative */
715
         0,                      /* bitpos */
716
         complain_overflow_dont, /* complain_on_overflow */
717
         bfd_elf_generic_reloc, /* special_function */
718
         "R_FRV_TLSMOFF",       /* name */
719
         FALSE,                 /* partial_inplace */
720
         0xffffffff,            /* src_mask */
721
         0xffffffff,            /* dst_mask */
722
         FALSE),                /* pcrel_offset */
723
};
724
 
725
/* GNU extension to record C++ vtable hierarchy.  */
726
static reloc_howto_type elf32_frv_vtinherit_howto =
727
  HOWTO (R_FRV_GNU_VTINHERIT,   /* type */
728
         0,                      /* rightshift */
729
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
730
         0,                      /* bitsize */
731
         FALSE,                 /* pc_relative */
732
         0,                      /* bitpos */
733
         complain_overflow_dont, /* complain_on_overflow */
734
         NULL,                  /* special_function */
735
         "R_FRV_GNU_VTINHERIT", /* name */
736
         FALSE,                 /* partial_inplace */
737
         0,                      /* src_mask */
738
         0,                      /* dst_mask */
739
         FALSE);                /* pcrel_offset */
740
 
741
  /* GNU extension to record C++ vtable member usage.  */
742
static reloc_howto_type elf32_frv_vtentry_howto =
743
  HOWTO (R_FRV_GNU_VTENTRY,     /* type */
744
         0,                      /* rightshift */
745
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
746
         0,                      /* bitsize */
747
         FALSE,                 /* pc_relative */
748
         0,                      /* bitpos */
749
         complain_overflow_dont, /* complain_on_overflow */
750
         _bfd_elf_rel_vtable_reloc_fn, /* special_function */
751
         "R_FRV_GNU_VTENTRY",   /* name */
752
         FALSE,                 /* partial_inplace */
753
         0,                      /* src_mask */
754
         0,                      /* dst_mask */
755
         FALSE);                /* pcrel_offset */
756
 
757
/* The following 3 relocations are REL.  The only difference to the
758
   entries in the table above are that partial_inplace is TRUE.  */
759
static reloc_howto_type elf32_frv_rel_32_howto =
760
  HOWTO (R_FRV_32,              /* type */
761
         0,                      /* rightshift */
762
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
763
         32,                    /* bitsize */
764
         FALSE,                 /* pc_relative */
765
         0,                      /* bitpos */
766
         complain_overflow_bitfield, /* complain_on_overflow */
767
         bfd_elf_generic_reloc, /* special_function */
768
         "R_FRV_32",            /* name */
769
         TRUE,                  /* partial_inplace */
770
         0xffffffff,            /* src_mask */
771
         0xffffffff,            /* dst_mask */
772
         FALSE);                /* pcrel_offset */
773
 
774
static reloc_howto_type elf32_frv_rel_funcdesc_howto =
775
  HOWTO (R_FRV_FUNCDESC,        /* type */
776
         0,                      /* rightshift */
777
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
778
         32,                    /* bitsize */
779
         FALSE,                 /* pc_relative */
780
         0,                      /* bitpos */
781
         complain_overflow_bitfield, /* complain_on_overflow */
782
         bfd_elf_generic_reloc, /* special_function */
783
         "R_FRV_FUNCDESC",      /* name */
784
         TRUE,                  /* partial_inplace */
785
         0xffffffff,            /* src_mask */
786
         0xffffffff,            /* dst_mask */
787
         FALSE);                /* pcrel_offset */
788
 
789
static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
790
  HOWTO (R_FRV_FUNCDESC_VALUE,  /* type */
791
         0,                      /* rightshift */
792
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
793
         64,                    /* bitsize */
794
         FALSE,                 /* pc_relative */
795
         0,                      /* bitpos */
796
         complain_overflow_bitfield, /* complain_on_overflow */
797
         bfd_elf_generic_reloc, /* special_function */
798
         "R_FRV_FUNCDESC_VALUE", /* name */
799
         TRUE,                  /* partial_inplace */
800
         0xffffffff,            /* src_mask */
801
         0xffffffff,            /* dst_mask */
802
         FALSE);                /* pcrel_offset */
803
 
804
static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
805
  /* A 64-bit TLS descriptor for a symbol.  The first word resolves to
806
     an entry point, and the second resolves to a special argument.
807
     If the symbol turns out to be in static TLS, the entry point is a
808
     return instruction, and the special argument is the TLS offset
809
     for the symbol.  If it's in dynamic TLS, the entry point is a TLS
810
     offset resolver, and the special argument is a pointer to a data
811
     structure allocated by the dynamic loader, containing the GOT
812
     address for the offset resolver, the module id, the offset within
813
     the module, and anything else the TLS offset resolver might need
814
     to determine the TLS offset for the symbol in the running
815
     thread.  */
816
  HOWTO (R_FRV_TLSDESC_VALUE,   /* type */
817
         0,                      /* rightshift */
818
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
819
         64,                    /* bitsize */
820
         FALSE,                 /* pc_relative */
821
         0,                      /* bitpos */
822
         complain_overflow_bitfield, /* complain_on_overflow */
823
         bfd_elf_generic_reloc, /* special_function */
824
         "R_FRV_TLSDESC_VALUE", /* name */
825
         TRUE,                  /* partial_inplace */
826
         0xffffffff,            /* src_mask */
827
         0xffffffff,            /* dst_mask */
828
         FALSE);                /* pcrel_offset */
829
 
830
static reloc_howto_type elf32_frv_rel_tlsoff_howto =
831
  /* The 32-bit offset from the thread pointer (not the module base
832
     address) to a thread-local symbol.  */
833
  HOWTO (R_FRV_TLSOFF,          /* type */
834
         0,                      /* rightshift */
835
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
836
         32,                    /* bitsize */
837
         FALSE,                 /* pc_relative */
838
         0,                      /* bitpos */
839
         complain_overflow_bitfield, /* complain_on_overflow */
840
         bfd_elf_generic_reloc, /* special_function */
841
         "R_FRV_TLSOFF",        /* name */
842
         TRUE,                  /* partial_inplace */
843
         0xffffffff,            /* src_mask */
844
         0xffffffff,            /* dst_mask */
845
         FALSE);                /* pcrel_offset */
846
 
847
 
848
 
849
extern const bfd_target bfd_elf32_frvfdpic_vec;
850
#define IS_FDPIC(bfd) ((bfd)->xvec == &bfd_elf32_frvfdpic_vec)
851
 
852
/* An extension of the elf hash table data structure, containing some
853
   additional FRV-specific data.  */
854
struct frvfdpic_elf_link_hash_table
855
{
856
  struct elf_link_hash_table elf;
857
 
858
  /* A pointer to the .got section.  */
859
  asection *sgot;
860
  /* A pointer to the .rel.got section.  */
861
  asection *sgotrel;
862
  /* A pointer to the .rofixup section.  */
863
  asection *sgotfixup;
864
  /* A pointer to the .plt section.  */
865
  asection *splt;
866
  /* A pointer to the .rel.plt section.  */
867
  asection *spltrel;
868
  /* GOT base offset.  */
869
  bfd_vma got0;
870
  /* Location of the first non-lazy PLT entry, i.e., the number of
871
     bytes taken by lazy PLT entries.  If locally-bound TLS
872
     descriptors require a ret instruction, it will be placed at this
873
     offset.  */
874
  bfd_vma plt0;
875
  /* A hash table holding information about which symbols were
876
     referenced with which PIC-related relocations.  */
877
  struct htab *relocs_info;
878
  /* Summary reloc information collected by
879
     _frvfdpic_count_got_plt_entries.  */
880
  struct _frvfdpic_dynamic_got_info *g;
881
};
882
 
883
/* Get the FRV ELF linker hash table from a link_info structure.  */
884
 
885
#define frvfdpic_hash_table(p) \
886
  (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
887
  == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
888
 
889
#define frvfdpic_got_section(info) \
890
  (frvfdpic_hash_table (info)->sgot)
891
#define frvfdpic_gotrel_section(info) \
892
  (frvfdpic_hash_table (info)->sgotrel)
893
#define frvfdpic_gotfixup_section(info) \
894
  (frvfdpic_hash_table (info)->sgotfixup)
895
#define frvfdpic_plt_section(info) \
896
  (frvfdpic_hash_table (info)->splt)
897
#define frvfdpic_pltrel_section(info) \
898
  (frvfdpic_hash_table (info)->spltrel)
899
#define frvfdpic_relocs_info(info) \
900
  (frvfdpic_hash_table (info)->relocs_info)
901
#define frvfdpic_got_initial_offset(info) \
902
  (frvfdpic_hash_table (info)->got0)
903
#define frvfdpic_plt_initial_offset(info) \
904
  (frvfdpic_hash_table (info)->plt0)
905
#define frvfdpic_dynamic_got_plt_info(info) \
906
  (frvfdpic_hash_table (info)->g)
907
 
908
/* Currently it's the same, but if some day we have a reason to change
909
   it, we'd better be using a different macro.
910
 
911
   FIXME: if there's any TLS PLT entry that uses local-exec or
912
   initial-exec models, we could use the ret at the end of any of them
913
   instead of adding one more.  */
914
#define frvfdpic_plt_tls_ret_offset(info) \
915
  (frvfdpic_plt_initial_offset (info))
916
 
917
/* The name of the dynamic interpreter.  This is put in the .interp
918
   section.  */
919
 
920
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
921
 
922
#define DEFAULT_STACK_SIZE 0x20000
923
 
924
/* This structure is used to collect the number of entries present in
925
   each addressable range of the got.  */
926
struct _frvfdpic_dynamic_got_info
927
{
928
  /* Several bits of information about the current link.  */
929
  struct bfd_link_info *info;
930
  /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
931
     ranges.  */
932
  bfd_vma got12, gotlos, gothilo;
933
  /* Total GOT size needed for function descriptor entries within the 12-,
934
     16- or 32-bit ranges.  */
935
  bfd_vma fd12, fdlos, fdhilo;
936
  /* Total GOT size needed by function descriptor entries referenced
937
     in PLT entries, that would be profitable to place in offsets
938
     close to the PIC register.  */
939
  bfd_vma fdplt;
940
  /* Total PLT size needed by lazy PLT entries.  */
941
  bfd_vma lzplt;
942
  /* Total GOT size needed for TLS descriptor entries within the 12-,
943
     16- or 32-bit ranges.  */
944
  bfd_vma tlsd12, tlsdlos, tlsdhilo;
945
  /* Total GOT size needed by TLS descriptors referenced in PLT
946
     entries, that would be profitable to place in offers close to the
947
     PIC register.  */
948
  bfd_vma tlsdplt;
949
  /* Total PLT size needed by TLS lazy PLT entries.  */
950
  bfd_vma tlslzplt;
951
  /* Number of relocations carried over from input object files.  */
952
  unsigned long relocs;
953
  /* Number of fixups introduced by relocations in input object files.  */
954
  unsigned long fixups;
955
  /* The number of fixups that reference the ret instruction added to
956
     the PLT for locally-resolved TLS descriptors.  */
957
  unsigned long tls_ret_refs;
958
};
959
 
960
/* This structure is used to assign offsets to got entries, function
961
   descriptors, plt entries and lazy plt entries.  */
962
 
963
struct _frvfdpic_dynamic_got_plt_info
964
{
965
  /* Summary information collected with _frvfdpic_count_got_plt_entries.  */
966
  struct _frvfdpic_dynamic_got_info g;
967
 
968
  /* For each addressable range, we record a MAX (positive) and MIN
969
     (negative) value.  CUR is used to assign got entries, and it's
970
     incremented from an initial positive value to MAX, then from MIN
971
     to FDCUR (unless FDCUR wraps around first).  FDCUR is used to
972
     assign function descriptors, and it's decreased from an initial
973
     non-positive value to MIN, then from MAX down to CUR (unless CUR
974
     wraps around first).  All of MIN, MAX, CUR and FDCUR always point
975
     to even words.  ODD, if non-zero, indicates an odd word to be
976
     used for the next got entry, otherwise CUR is used and
977
     incremented by a pair of words, wrapping around when it reaches
978
     MAX.  FDCUR is decremented (and wrapped) before the next function
979
     descriptor is chosen.  FDPLT indicates the number of remaining
980
     slots that can be used for function descriptors used only by PLT
981
     entries.
982
 
983
     TMAX, TMIN and TCUR are used to assign TLS descriptors.  TCUR
984
     starts as MAX, and grows up to TMAX, then wraps around to TMIN
985
     and grows up to MIN.  TLSDPLT indicates the number of remaining
986
     slots that can be used for TLS descriptors used only by TLS PLT
987
     entries.  */
988
  struct _frvfdpic_dynamic_got_alloc_data
989
  {
990
    bfd_signed_vma max, cur, odd, fdcur, min;
991
    bfd_signed_vma tmax, tcur, tmin;
992
    bfd_vma fdplt, tlsdplt;
993
  } got12, gotlos, gothilo;
994
};
995
 
996
/* Create an FRV ELF linker hash table.  */
997
 
998
static struct bfd_link_hash_table *
999
frvfdpic_elf_link_hash_table_create (bfd *abfd)
1000
{
1001
  struct frvfdpic_elf_link_hash_table *ret;
1002
  bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
1003
 
1004
  ret = bfd_zalloc (abfd, amt);
1005
  if (ret == NULL)
1006
    return NULL;
1007
 
1008
  if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
1009
                                      _bfd_elf_link_hash_newfunc,
1010
                                      sizeof (struct elf_link_hash_entry),
1011
                                      FRV_ELF_DATA))
1012
    {
1013
      free (ret);
1014
      return NULL;
1015
    }
1016
 
1017
  return &ret->elf.root;
1018
}
1019
 
1020
/* Decide whether a reference to a symbol can be resolved locally or
1021
   not.  If the symbol is protected, we want the local address, but
1022
   its function descriptor must be assigned by the dynamic linker.  */
1023
#define FRVFDPIC_SYM_LOCAL(INFO, H) \
1024
  (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
1025
   || ! elf_hash_table (INFO)->dynamic_sections_created)
1026
#define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
1027
  ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
1028
 
1029
/* This structure collects information on what kind of GOT, PLT or
1030
   function descriptors are required by relocations that reference a
1031
   certain symbol.  */
1032
struct frvfdpic_relocs_info
1033
{
1034
  /* The index of the symbol, as stored in the relocation r_info, if
1035
     we have a local symbol; -1 otherwise.  */
1036
  long symndx;
1037
  union
1038
  {
1039
    /* The input bfd in which the symbol is defined, if it's a local
1040
       symbol.  */
1041
    bfd *abfd;
1042
    /* If symndx == -1, the hash table entry corresponding to a global
1043
       symbol (even if it turns out to bind locally, in which case it
1044
       should ideally be replaced with section's symndx + addend).  */
1045
    struct elf_link_hash_entry *h;
1046
  } d;
1047
  /* The addend of the relocation that references the symbol.  */
1048
  bfd_vma addend;
1049
 
1050
  /* The fields above are used to identify an entry.  The fields below
1051
     contain information on how an entry is used and, later on, which
1052
     locations it was assigned.  */
1053
  /* The following 3 fields record whether the symbol+addend above was
1054
     ever referenced with a GOT relocation.  The 12 suffix indicates a
1055
     GOT12 relocation; los is used for GOTLO relocations that are not
1056
     matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1057
     pairs.  */
1058
  unsigned got12:1;
1059
  unsigned gotlos:1;
1060
  unsigned gothilo:1;
1061
  /* Whether a FUNCDESC relocation references symbol+addend.  */
1062
  unsigned fd:1;
1063
  /* Whether a FUNCDESC_GOT relocation references symbol+addend.  */
1064
  unsigned fdgot12:1;
1065
  unsigned fdgotlos:1;
1066
  unsigned fdgothilo:1;
1067
  /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend.  */
1068
  unsigned fdgoff12:1;
1069
  unsigned fdgofflos:1;
1070
  unsigned fdgoffhilo:1;
1071
  /* Whether a GETTLSOFF relocation references symbol+addend.  */
1072
  unsigned tlsplt:1;
1073
  /* FIXME: we should probably add tlspltdesc, tlspltoff and
1074
     tlspltimm, to tell what kind of TLS PLT entry we're generating.
1075
     We might instead just pre-compute flags telling whether the
1076
     object is suitable for local exec, initial exec or general
1077
     dynamic addressing, and use that all over the place.  We could
1078
     also try to do a better job of merging TLSOFF and TLSDESC entries
1079
     in main executables, but perhaps we can get rid of TLSDESC
1080
     entirely in them instead.  */
1081
  /* Whether a GOTTLSDESC relocation references symbol+addend.  */
1082
  unsigned tlsdesc12:1;
1083
  unsigned tlsdesclos:1;
1084
  unsigned tlsdeschilo:1;
1085
  /* Whether a GOTTLSOFF relocation references symbol+addend.  */
1086
  unsigned tlsoff12:1;
1087
  unsigned tlsofflos:1;
1088
  unsigned tlsoffhilo:1;
1089
  /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1090
     GOTOFFHI relocations.  The addend doesn't really matter, since we
1091
     envision that this will only be used to check whether the symbol
1092
     is mapped to the same segment as the got.  */
1093
  unsigned gotoff:1;
1094
  /* Whether symbol+addend is referenced by a LABEL24 relocation.  */
1095
  unsigned call:1;
1096
  /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1097
     relocation.  */
1098
  unsigned sym:1;
1099
  /* Whether we need a PLT entry for a symbol.  Should be implied by
1100
     something like:
1101
     (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h))  */
1102
  unsigned plt:1;
1103
  /* Whether a function descriptor should be created in this link unit
1104
     for symbol+addend.  Should be implied by something like:
1105
     (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1106
      || ((fd || fdgot12 || fdgotlos || fdgothilo)
1107
          && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h))))  */
1108
  unsigned privfd:1;
1109
  /* Whether a lazy PLT entry is needed for this symbol+addend.
1110
     Should be implied by something like:
1111
     (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1112
      && ! (info->flags & DF_BIND_NOW))  */
1113
  unsigned lazyplt:1;
1114
  /* Whether we've already emitted GOT relocations and PLT entries as
1115
     needed for this symbol.  */
1116
  unsigned done:1;
1117
 
1118
  /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1119
     R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1120
     symbol+addend.  */
1121
  unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1122
 
1123
  /* The number of .rofixups entries and dynamic relocations allocated
1124
     for this symbol, minus any that might have already been used.  */
1125
  unsigned fixups, dynrelocs;
1126
 
1127
  /* The offsets of the GOT entries assigned to symbol+addend, to the
1128
     function descriptor's address, and to a function descriptor,
1129
     respectively.  Should be zero if unassigned.  The offsets are
1130
     counted from the value that will be assigned to the PIC register,
1131
     not from the beginning of the .got section.  */
1132
  bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1133
  /* The offsets of the PLT entries assigned to symbol+addend,
1134
     non-lazy and lazy, respectively.  If unassigned, should be
1135
     (bfd_vma)-1.  */
1136
  bfd_vma plt_entry, lzplt_entry;
1137
  /* The offsets of the GOT entries for TLS offset and TLS descriptor.  */
1138
  bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1139
  /* The offset of the TLS offset PLT entry.  */
1140
  bfd_vma tlsplt_entry;
1141
};
1142
 
1143
/* Compute a hash with the key fields of an frvfdpic_relocs_info entry.  */
1144
static hashval_t
1145
frvfdpic_relocs_info_hash (const void *entry_)
1146
{
1147
  const struct frvfdpic_relocs_info *entry = entry_;
1148
 
1149
  return (entry->symndx == -1
1150
          ? (long) entry->d.h->root.root.hash
1151
          : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1152
}
1153
 
1154
/* Test whether the key fields of two frvfdpic_relocs_info entries are
1155
   identical.  */
1156
static int
1157
frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1158
{
1159
  const struct frvfdpic_relocs_info *e1 = entry1;
1160
  const struct frvfdpic_relocs_info *e2 = entry2;
1161
 
1162
  return e1->symndx == e2->symndx && e1->addend == e2->addend
1163
    && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1164
}
1165
 
1166
/* Find or create an entry in a hash table HT that matches the key
1167
   fields of the given ENTRY.  If it's not found, memory for a new
1168
   entry is allocated in ABFD's obstack.  */
1169
static struct frvfdpic_relocs_info *
1170
frvfdpic_relocs_info_find (struct htab *ht,
1171
                           bfd *abfd,
1172
                           const struct frvfdpic_relocs_info *entry,
1173
                           enum insert_option insert)
1174
{
1175
  struct frvfdpic_relocs_info **loc =
1176
    (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1177
 
1178
  if (! loc)
1179
    return NULL;
1180
 
1181
  if (*loc)
1182
    return *loc;
1183
 
1184
  *loc = bfd_zalloc (abfd, sizeof (**loc));
1185
 
1186
  if (! *loc)
1187
    return *loc;
1188
 
1189
  (*loc)->symndx = entry->symndx;
1190
  (*loc)->d = entry->d;
1191
  (*loc)->addend = entry->addend;
1192
  (*loc)->plt_entry = (bfd_vma)-1;
1193
  (*loc)->lzplt_entry = (bfd_vma)-1;
1194
  (*loc)->tlsplt_entry = (bfd_vma)-1;
1195
 
1196
  return *loc;
1197
}
1198
 
1199
/* Obtain the address of the entry in HT associated with H's symbol +
1200
   addend, creating a new entry if none existed.  ABFD is only used
1201
   for memory allocation purposes.  */
1202
inline static struct frvfdpic_relocs_info *
1203
frvfdpic_relocs_info_for_global (struct htab *ht,
1204
                                 bfd *abfd,
1205
                                 struct elf_link_hash_entry *h,
1206
                                 bfd_vma addend,
1207
                                 enum insert_option insert)
1208
{
1209
  struct frvfdpic_relocs_info entry;
1210
 
1211
  entry.symndx = -1;
1212
  entry.d.h = h;
1213
  entry.addend = addend;
1214
 
1215
  return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1216
}
1217
 
1218
/* Obtain the address of the entry in HT associated with the SYMNDXth
1219
   local symbol of the input bfd ABFD, plus the addend, creating a new
1220
   entry if none existed.  */
1221
inline static struct frvfdpic_relocs_info *
1222
frvfdpic_relocs_info_for_local (struct htab *ht,
1223
                                bfd *abfd,
1224
                                long symndx,
1225
                                bfd_vma addend,
1226
                                enum insert_option insert)
1227
{
1228
  struct frvfdpic_relocs_info entry;
1229
 
1230
  entry.symndx = symndx;
1231
  entry.d.abfd = abfd;
1232
  entry.addend = addend;
1233
 
1234
  return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1235
}
1236
 
1237
/* Merge fields set by check_relocs() of two entries that end up being
1238
   mapped to the same (presumably global) symbol.  */
1239
 
1240
inline static void
1241
frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1242
                                      struct frvfdpic_relocs_info const *e1)
1243
{
1244
  e2->got12 |= e1->got12;
1245
  e2->gotlos |= e1->gotlos;
1246
  e2->gothilo |= e1->gothilo;
1247
  e2->fd |= e1->fd;
1248
  e2->fdgot12 |= e1->fdgot12;
1249
  e2->fdgotlos |= e1->fdgotlos;
1250
  e2->fdgothilo |= e1->fdgothilo;
1251
  e2->fdgoff12 |= e1->fdgoff12;
1252
  e2->fdgofflos |= e1->fdgofflos;
1253
  e2->fdgoffhilo |= e1->fdgoffhilo;
1254
  e2->tlsplt |= e1->tlsplt;
1255
  e2->tlsdesc12 |= e1->tlsdesc12;
1256
  e2->tlsdesclos |= e1->tlsdesclos;
1257
  e2->tlsdeschilo |= e1->tlsdeschilo;
1258
  e2->tlsoff12 |= e1->tlsoff12;
1259
  e2->tlsofflos |= e1->tlsofflos;
1260
  e2->tlsoffhilo |= e1->tlsoffhilo;
1261
  e2->gotoff |= e1->gotoff;
1262
  e2->call |= e1->call;
1263
  e2->sym |= e1->sym;
1264
}
1265
 
1266
/* Every block of 65535 lazy PLT entries shares a single call to the
1267
   resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1268
   32767, counting from 0).  All other lazy PLT entries branch to it
1269
   in a single instruction.  */
1270
 
1271
#define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1272
#define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1273
 
1274
/* Add a dynamic relocation to the SRELOC section.  */
1275
 
1276
inline static bfd_vma
1277
_frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1278
                         int reloc_type, long dynindx, bfd_vma addend,
1279
                         struct frvfdpic_relocs_info *entry)
1280
{
1281
  Elf_Internal_Rela outrel;
1282
  bfd_vma reloc_offset;
1283
 
1284
  outrel.r_offset = offset;
1285
  outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1286
  outrel.r_addend = addend;
1287
 
1288
  reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1289
  BFD_ASSERT (reloc_offset < sreloc->size);
1290
  bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1291
                            sreloc->contents + reloc_offset);
1292
  sreloc->reloc_count++;
1293
 
1294
  /* If the entry's index is zero, this relocation was probably to a
1295
     linkonce section that got discarded.  We reserved a dynamic
1296
     relocation, but it was for another entry than the one we got at
1297
     the time of emitting the relocation.  Unfortunately there's no
1298
     simple way for us to catch this situation, since the relocation
1299
     is cleared right before calling relocate_section, at which point
1300
     we no longer know what the relocation used to point to.  */
1301
  if (entry->symndx)
1302
    {
1303
      BFD_ASSERT (entry->dynrelocs > 0);
1304
      entry->dynrelocs--;
1305
    }
1306
 
1307
  return reloc_offset;
1308
}
1309
 
1310
/* Add a fixup to the ROFIXUP section.  */
1311
 
1312
static bfd_vma
1313
_frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1314
                       struct frvfdpic_relocs_info *entry)
1315
{
1316
  bfd_vma fixup_offset;
1317
 
1318
  if (rofixup->flags & SEC_EXCLUDE)
1319
    return -1;
1320
 
1321
  fixup_offset = rofixup->reloc_count * 4;
1322
  if (rofixup->contents)
1323
    {
1324
      BFD_ASSERT (fixup_offset < rofixup->size);
1325
      bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1326
    }
1327
  rofixup->reloc_count++;
1328
 
1329
  if (entry && entry->symndx)
1330
    {
1331
      /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1332
         above.  */
1333
      BFD_ASSERT (entry->fixups > 0);
1334
      entry->fixups--;
1335
    }
1336
 
1337
  return fixup_offset;
1338
}
1339
 
1340
/* Find the segment number in which OSEC, and output section, is
1341
   located.  */
1342
 
1343
static unsigned
1344
_frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1345
{
1346
  Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1347
 
1348
  return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1349
}
1350
 
1351
inline static bfd_boolean
1352
_frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1353
{
1354
  unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1355
 
1356
  return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1357
}
1358
 
1359
#define FRVFDPIC_TLS_BIAS (2048 - 16)
1360
 
1361
/* Return the base VMA address which should be subtracted from real addresses
1362
   when resolving TLSMOFF relocation.
1363
   This is PT_TLS segment p_vaddr, plus the 2048-16 bias.  */
1364
 
1365
static bfd_vma
1366
tls_biased_base (struct bfd_link_info *info)
1367
{
1368
  /* If tls_sec is NULL, we should have signalled an error already.  */
1369
  if (elf_hash_table (info)->tls_sec == NULL)
1370
    return FRVFDPIC_TLS_BIAS;
1371
  return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1372
}
1373
 
1374
/* Generate relocations for GOT entries, function descriptors, and
1375
   code for PLT and lazy PLT entries.  */
1376
 
1377
inline static bfd_boolean
1378
_frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1379
                                       bfd *output_bfd,
1380
                                       struct bfd_link_info *info,
1381
                                       asection *sec,
1382
                                       Elf_Internal_Sym *sym,
1383
                                       bfd_vma addend)
1384
 
1385
{
1386
  bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1387
  int dynindx = -1;
1388
 
1389
  if (entry->done)
1390
    return TRUE;
1391
  entry->done = 1;
1392
 
1393
  if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1394
      || entry->tlsoff_entry || entry->tlsdesc_entry)
1395
    {
1396
      /* If the symbol is dynamic, consider it for dynamic
1397
         relocations, otherwise decay to section + offset.  */
1398
      if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1399
        dynindx = entry->d.h->dynindx;
1400
      else
1401
        {
1402
          if (sec
1403
              && sec->output_section
1404
              && ! bfd_is_abs_section (sec->output_section)
1405
              && ! bfd_is_und_section (sec->output_section))
1406
            dynindx = elf_section_data (sec->output_section)->dynindx;
1407
          else
1408
            dynindx = 0;
1409
        }
1410
    }
1411
 
1412
  /* Generate relocation for GOT entry pointing to the symbol.  */
1413
  if (entry->got_entry)
1414
    {
1415
      int idx = dynindx;
1416
      bfd_vma ad = addend;
1417
 
1418
      /* If the symbol is dynamic but binds locally, use
1419
         section+offset.  */
1420
      if (sec && (entry->symndx != -1
1421
                  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1422
        {
1423
          if (entry->symndx == -1)
1424
            ad += entry->d.h->root.u.def.value;
1425
          else
1426
            ad += sym->st_value;
1427
          ad += sec->output_offset;
1428
          if (sec->output_section && elf_section_data (sec->output_section))
1429
            idx = elf_section_data (sec->output_section)->dynindx;
1430
          else
1431
            idx = 0;
1432
        }
1433
 
1434
      /* If we're linking an executable at a fixed address, we can
1435
         omit the dynamic relocation as long as the symbol is local to
1436
         this module.  */
1437
      if (info->executable && !info->pie
1438
          && (entry->symndx != -1
1439
              || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1440
        {
1441
          if (sec)
1442
            ad += sec->output_section->vma;
1443
          if (entry->symndx != -1
1444
              || entry->d.h->root.type != bfd_link_hash_undefweak)
1445
            _frvfdpic_add_rofixup (output_bfd,
1446
                                   frvfdpic_gotfixup_section (info),
1447
                                   frvfdpic_got_section (info)->output_section
1448
                                   ->vma
1449
                                   + frvfdpic_got_section (info)->output_offset
1450
                                   + frvfdpic_got_initial_offset (info)
1451
                                   + entry->got_entry, entry);
1452
        }
1453
      else
1454
        _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1455
                                 _bfd_elf_section_offset
1456
                                 (output_bfd, info,
1457
                                  frvfdpic_got_section (info),
1458
                                  frvfdpic_got_initial_offset (info)
1459
                                  + entry->got_entry)
1460
                                 + frvfdpic_got_section (info)
1461
                                 ->output_section->vma
1462
                                 + frvfdpic_got_section (info)->output_offset,
1463
                                 R_FRV_32, idx, ad, entry);
1464
 
1465
      bfd_put_32 (output_bfd, ad,
1466
                  frvfdpic_got_section (info)->contents
1467
                  + frvfdpic_got_initial_offset (info)
1468
                  + entry->got_entry);
1469
    }
1470
 
1471
  /* Generate relocation for GOT entry pointing to a canonical
1472
     function descriptor.  */
1473
  if (entry->fdgot_entry)
1474
    {
1475
      int reloc, idx;
1476
      bfd_vma ad = 0;
1477
 
1478
      if (! (entry->symndx == -1
1479
             && entry->d.h->root.type == bfd_link_hash_undefweak
1480
             && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1481
        {
1482
          /* If the symbol is dynamic and there may be dynamic symbol
1483
             resolution because we are, or are linked with, a shared
1484
             library, emit a FUNCDESC relocation such that the dynamic
1485
             linker will allocate the function descriptor.  If the
1486
             symbol needs a non-local function descriptor but binds
1487
             locally (e.g., its visibility is protected, emit a
1488
             dynamic relocation decayed to section+offset.  */
1489
          if (entry->symndx == -1
1490
              && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1491
              && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1492
              && !(info->executable && !info->pie))
1493
            {
1494
              reloc = R_FRV_FUNCDESC;
1495
              idx = elf_section_data (entry->d.h->root.u.def.section
1496
                                      ->output_section)->dynindx;
1497
              ad = entry->d.h->root.u.def.section->output_offset
1498
                + entry->d.h->root.u.def.value;
1499
            }
1500
          else if (entry->symndx == -1
1501
                   && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1502
            {
1503
              reloc = R_FRV_FUNCDESC;
1504
              idx = dynindx;
1505
              ad = addend;
1506
              if (ad)
1507
                {
1508
                  (*info->callbacks->reloc_dangerous)
1509
                    (info, _("relocation requires zero addend"),
1510
                     elf_hash_table (info)->dynobj,
1511
                     frvfdpic_got_section (info),
1512
                     entry->fdgot_entry);
1513
                  return FALSE;
1514
                }
1515
            }
1516
          else
1517
            {
1518
              /* Otherwise, we know we have a private function descriptor,
1519
                 so reference it directly.  */
1520
              if (elf_hash_table (info)->dynamic_sections_created)
1521
                BFD_ASSERT (entry->privfd);
1522
              reloc = R_FRV_32;
1523
              idx = elf_section_data (frvfdpic_got_section (info)
1524
                                      ->output_section)->dynindx;
1525
              ad = frvfdpic_got_section (info)->output_offset
1526
                + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1527
            }
1528
 
1529
          /* If there is room for dynamic symbol resolution, emit the
1530
             dynamic relocation.  However, if we're linking an
1531
             executable at a fixed location, we won't have emitted a
1532
             dynamic symbol entry for the got section, so idx will be
1533
             zero, which means we can and should compute the address
1534
             of the private descriptor ourselves.  */
1535
          if (info->executable && !info->pie
1536
              && (entry->symndx != -1
1537
                  || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1538
            {
1539
              ad += frvfdpic_got_section (info)->output_section->vma;
1540
              _frvfdpic_add_rofixup (output_bfd,
1541
                                     frvfdpic_gotfixup_section (info),
1542
                                     frvfdpic_got_section (info)
1543
                                     ->output_section->vma
1544
                                     + frvfdpic_got_section (info)
1545
                                     ->output_offset
1546
                                     + frvfdpic_got_initial_offset (info)
1547
                                     + entry->fdgot_entry, entry);
1548
            }
1549
          else
1550
            _frvfdpic_add_dyn_reloc (output_bfd,
1551
                                     frvfdpic_gotrel_section (info),
1552
                                     _bfd_elf_section_offset
1553
                                     (output_bfd, info,
1554
                                      frvfdpic_got_section (info),
1555
                                      frvfdpic_got_initial_offset (info)
1556
                                      + entry->fdgot_entry)
1557
                                     + frvfdpic_got_section (info)
1558
                                     ->output_section->vma
1559
                                     + frvfdpic_got_section (info)
1560
                                     ->output_offset,
1561
                                     reloc, idx, ad, entry);
1562
        }
1563
 
1564
      bfd_put_32 (output_bfd, ad,
1565
                  frvfdpic_got_section (info)->contents
1566
                  + frvfdpic_got_initial_offset (info)
1567
                  + entry->fdgot_entry);
1568
    }
1569
 
1570
  /* Generate relocation to fill in a private function descriptor in
1571
     the GOT.  */
1572
  if (entry->fd_entry)
1573
    {
1574
      int idx = dynindx;
1575
      bfd_vma ad = addend;
1576
      bfd_vma ofst;
1577
      long lowword, highword;
1578
 
1579
      /* If the symbol is dynamic but binds locally, use
1580
         section+offset.  */
1581
      if (sec && (entry->symndx != -1
1582
                  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1583
        {
1584
          if (entry->symndx == -1)
1585
            ad += entry->d.h->root.u.def.value;
1586
          else
1587
            ad += sym->st_value;
1588
          ad += sec->output_offset;
1589
          if (sec->output_section && elf_section_data (sec->output_section))
1590
            idx = elf_section_data (sec->output_section)->dynindx;
1591
          else
1592
            idx = 0;
1593
        }
1594
 
1595
      /* If we're linking an executable at a fixed address, we can
1596
         omit the dynamic relocation as long as the symbol is local to
1597
         this module.  */
1598
      if (info->executable && !info->pie
1599
          && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1600
        {
1601
          if (sec)
1602
            ad += sec->output_section->vma;
1603
          ofst = 0;
1604
          if (entry->symndx != -1
1605
              || entry->d.h->root.type != bfd_link_hash_undefweak)
1606
            {
1607
              _frvfdpic_add_rofixup (output_bfd,
1608
                                     frvfdpic_gotfixup_section (info),
1609
                                     frvfdpic_got_section (info)
1610
                                     ->output_section->vma
1611
                                     + frvfdpic_got_section (info)
1612
                                     ->output_offset
1613
                                     + frvfdpic_got_initial_offset (info)
1614
                                     + entry->fd_entry, entry);
1615
              _frvfdpic_add_rofixup (output_bfd,
1616
                                     frvfdpic_gotfixup_section (info),
1617
                                     frvfdpic_got_section (info)
1618
                                     ->output_section->vma
1619
                                     + frvfdpic_got_section (info)
1620
                                     ->output_offset
1621
                                     + frvfdpic_got_initial_offset (info)
1622
                                     + entry->fd_entry + 4, entry);
1623
            }
1624
        }
1625
      else
1626
        {
1627
          ofst =
1628
            _frvfdpic_add_dyn_reloc (output_bfd,
1629
                                     entry->lazyplt
1630
                                     ? frvfdpic_pltrel_section (info)
1631
                                     : frvfdpic_gotrel_section (info),
1632
                                     _bfd_elf_section_offset
1633
                                     (output_bfd, info,
1634
                                      frvfdpic_got_section (info),
1635
                                      frvfdpic_got_initial_offset (info)
1636
                                      + entry->fd_entry)
1637
                                     + frvfdpic_got_section (info)
1638
                                     ->output_section->vma
1639
                                     + frvfdpic_got_section (info)
1640
                                     ->output_offset,
1641
                                     R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1642
        }
1643
 
1644
      /* If we've omitted the dynamic relocation, just emit the fixed
1645
         addresses of the symbol and of the local GOT base offset.  */
1646
      if (info->executable && !info->pie && sec && sec->output_section)
1647
        {
1648
          lowword = ad;
1649
          highword = frvfdpic_got_section (info)->output_section->vma
1650
            + frvfdpic_got_section (info)->output_offset
1651
            + frvfdpic_got_initial_offset (info);
1652
        }
1653
      else if (entry->lazyplt)
1654
        {
1655
          if (ad)
1656
            {
1657
              (*info->callbacks->reloc_dangerous)
1658
                (info, _("relocation requires zero addend"),
1659
                 elf_hash_table (info)->dynobj,
1660
                 frvfdpic_got_section (info),
1661
                 entry->fd_entry);
1662
              return FALSE;
1663
            }
1664
 
1665
          fd_lazy_rel_offset = ofst;
1666
 
1667
          /* A function descriptor used for lazy or local resolving is
1668
             initialized such that its high word contains the output
1669
             section index in which the PLT entries are located, and
1670
             the low word contains the address of the lazy PLT entry
1671
             entry point, that must be within the memory region
1672
             assigned to that section.  */
1673
          lowword = entry->lzplt_entry + 4
1674
            + frvfdpic_plt_section (info)->output_offset
1675
            + frvfdpic_plt_section (info)->output_section->vma;
1676
          highword = _frvfdpic_osec_to_segment
1677
            (output_bfd, frvfdpic_plt_section (info)->output_section);
1678
        }
1679
      else
1680
        {
1681
          /* A function descriptor for a local function gets the index
1682
             of the section.  For a non-local function, it's
1683
             disregarded.  */
1684
          lowword = ad;
1685
          if (sec == NULL
1686
              || (entry->symndx == -1 && entry->d.h->dynindx != -1
1687
                  && entry->d.h->dynindx == idx))
1688
            highword = 0;
1689
          else
1690
            highword = _frvfdpic_osec_to_segment
1691
              (output_bfd, sec->output_section);
1692
        }
1693
 
1694
      bfd_put_32 (output_bfd, lowword,
1695
                  frvfdpic_got_section (info)->contents
1696
                  + frvfdpic_got_initial_offset (info)
1697
                  + entry->fd_entry);
1698
      bfd_put_32 (output_bfd, highword,
1699
                  frvfdpic_got_section (info)->contents
1700
                  + frvfdpic_got_initial_offset (info)
1701
                  + entry->fd_entry + 4);
1702
    }
1703
 
1704
  /* Generate code for the PLT entry.  */
1705
  if (entry->plt_entry != (bfd_vma) -1)
1706
    {
1707
      bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1708
        + entry->plt_entry;
1709
 
1710
      BFD_ASSERT (entry->fd_entry);
1711
 
1712
      /* Figure out what kind of PLT entry we need, depending on the
1713
         location of the function descriptor within the GOT.  */
1714
      if (entry->fd_entry >= -(1 << (12 - 1))
1715
          && entry->fd_entry < (1 << (12 - 1)))
1716
        {
1717
          /* lddi @(gr15, fd_entry), gr14 */
1718
          bfd_put_32 (output_bfd,
1719
                      0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1720
                      plt_code);
1721
          plt_code += 4;
1722
        }
1723
      else
1724
        {
1725
          if (entry->fd_entry >= -(1 << (16 - 1))
1726
              && entry->fd_entry < (1 << (16 - 1)))
1727
            {
1728
              /* setlos lo(fd_entry), gr14 */
1729
              bfd_put_32 (output_bfd,
1730
                          0x9cfc0000
1731
                          | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1732
                          plt_code);
1733
              plt_code += 4;
1734
            }
1735
          else
1736
            {
1737
              /* sethi.p hi(fd_entry), gr14
1738
                 setlo lo(fd_entry), gr14 */
1739
              bfd_put_32 (output_bfd,
1740
                          0x1cf80000
1741
                          | ((entry->fd_entry >> 16)
1742
                             & (((bfd_vma)1 << 16) - 1)),
1743
                          plt_code);
1744
              plt_code += 4;
1745
              bfd_put_32 (output_bfd,
1746
                          0x9cf40000
1747
                          | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1748
                          plt_code);
1749
              plt_code += 4;
1750
            }
1751
          /* ldd @(gr14,gr15),gr14 */
1752
          bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1753
          plt_code += 4;
1754
        }
1755
      /* jmpl @(gr14,gr0) */
1756
      bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1757
    }
1758
 
1759
  /* Generate code for the lazy PLT entry.  */
1760
  if (entry->lzplt_entry != (bfd_vma) -1)
1761
    {
1762
      bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1763
        + entry->lzplt_entry;
1764
      bfd_vma resolverStub_addr;
1765
 
1766
      bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1767
      lzplt_code += 4;
1768
 
1769
      resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1770
        * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1771
      if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1772
        resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1773
 
1774
      if (entry->lzplt_entry == resolverStub_addr)
1775
        {
1776
          /* This is a lazy PLT entry that includes a resolver call.  */
1777
          /* ldd @(gr15,gr0), gr4
1778
             jmpl @(gr4,gr0)  */
1779
          bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1780
          bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1781
        }
1782
      else
1783
        {
1784
          /* bra  resolverStub */
1785
          bfd_put_32 (output_bfd,
1786
                      0xc01a0000
1787
                      | (((resolverStub_addr - entry->lzplt_entry)
1788
                          / 4) & (((bfd_vma)1 << 16) - 1)),
1789
                      lzplt_code);
1790
        }
1791
    }
1792
 
1793
  /* Generate relocation for GOT entry holding the TLS offset.  */
1794
  if (entry->tlsoff_entry)
1795
    {
1796
      int idx = dynindx;
1797
      bfd_vma ad = addend;
1798
 
1799
      if (entry->symndx != -1
1800
          || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1801
        {
1802
          /* If the symbol is dynamic but binds locally, use
1803
             section+offset.  */
1804
          if (sec)
1805
            {
1806
              if (entry->symndx == -1)
1807
                ad += entry->d.h->root.u.def.value;
1808
              else
1809
                ad += sym->st_value;
1810
              ad += sec->output_offset;
1811
              if (sec->output_section
1812
                  && elf_section_data (sec->output_section))
1813
                idx = elf_section_data (sec->output_section)->dynindx;
1814
              else
1815
                idx = 0;
1816
            }
1817
        }
1818
 
1819
      /* *ABS*+addend is special for TLS relocations, use only the
1820
         addend.  */
1821
      if (info->executable
1822
          && idx == 0
1823
          && (bfd_is_abs_section (sec)
1824
              || bfd_is_und_section (sec)))
1825
        ;
1826
      /* If we're linking an executable, we can entirely omit the
1827
         dynamic relocation if the symbol is local to this module.  */
1828
      else if (info->executable
1829
               && (entry->symndx != -1
1830
                   || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1831
        {
1832
          if (sec)
1833
            ad += sec->output_section->vma - tls_biased_base (info);
1834
        }
1835
      else
1836
        {
1837
          if (idx == 0
1838
              && (bfd_is_abs_section (sec)
1839
                  || bfd_is_und_section (sec)))
1840
            {
1841
              if (! elf_hash_table (info)->tls_sec)
1842
                {
1843
                  (*info->callbacks->undefined_symbol)
1844
                    (info, "TLS section", elf_hash_table (info)->dynobj,
1845
                     frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1846
                  return FALSE;
1847
                }
1848
              idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1849
              ad += FRVFDPIC_TLS_BIAS;
1850
            }
1851
          _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1852
                                   _bfd_elf_section_offset
1853
                                   (output_bfd, info,
1854
                                    frvfdpic_got_section (info),
1855
                                    frvfdpic_got_initial_offset (info)
1856
                                    + entry->tlsoff_entry)
1857
                                   + frvfdpic_got_section (info)
1858
                                   ->output_section->vma
1859
                                   + frvfdpic_got_section (info)
1860
                                   ->output_offset,
1861
                                   R_FRV_TLSOFF, idx, ad, entry);
1862
        }
1863
 
1864
      bfd_put_32 (output_bfd, ad,
1865
                  frvfdpic_got_section (info)->contents
1866
                  + frvfdpic_got_initial_offset (info)
1867
                  + entry->tlsoff_entry);
1868
    }
1869
 
1870
  if (entry->tlsdesc_entry)
1871
    {
1872
      int idx = dynindx;
1873
      bfd_vma ad = addend;
1874
 
1875
      /* If the symbol is dynamic but binds locally, use
1876
         section+offset.  */
1877
      if (sec && (entry->symndx != -1
1878
                  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1879
        {
1880
          if (entry->symndx == -1)
1881
            ad += entry->d.h->root.u.def.value;
1882
          else
1883
            ad += sym->st_value;
1884
          ad += sec->output_offset;
1885
          if (sec->output_section && elf_section_data (sec->output_section))
1886
            idx = elf_section_data (sec->output_section)->dynindx;
1887
          else
1888
            idx = 0;
1889
        }
1890
 
1891
      /* If we didn't set up a TLS offset entry, but we're linking an
1892
         executable and the symbol binds locally, we can use the
1893
         module offset in the TLS descriptor in relaxations.  */
1894
      if (info->executable && ! entry->tlsoff_entry)
1895
        entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1896
 
1897
      if (info->executable && !info->pie
1898
          && ((idx == 0
1899
               && (bfd_is_abs_section (sec)
1900
                   || bfd_is_und_section (sec)))
1901
              || entry->symndx != -1
1902
              || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1903
        {
1904
          /* *ABS*+addend is special for TLS relocations, use only the
1905
             addend for the TLS offset, and take the module id as
1906
             0.  */
1907
          if (idx == 0
1908
              && (bfd_is_abs_section (sec)
1909
                  || bfd_is_und_section (sec)))
1910
            ;
1911
          /* For other TLS symbols that bind locally, add the section
1912
             TLS offset to the addend.  */
1913
          else if (sec)
1914
            ad += sec->output_section->vma - tls_biased_base (info);
1915
 
1916
          bfd_put_32 (output_bfd,
1917
                      frvfdpic_plt_section (info)->output_section->vma
1918
                      + frvfdpic_plt_section (info)->output_offset
1919
                      + frvfdpic_plt_tls_ret_offset (info),
1920
                      frvfdpic_got_section (info)->contents
1921
                      + frvfdpic_got_initial_offset (info)
1922
                      + entry->tlsdesc_entry);
1923
 
1924
          _frvfdpic_add_rofixup (output_bfd,
1925
                                 frvfdpic_gotfixup_section (info),
1926
                                 frvfdpic_got_section (info)
1927
                                 ->output_section->vma
1928
                                 + frvfdpic_got_section (info)
1929
                                 ->output_offset
1930
                                 + frvfdpic_got_initial_offset (info)
1931
                                 + entry->tlsdesc_entry, entry);
1932
 
1933
          BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1934
 
1935
          /* We've used one of the reserved fixups, so discount it so
1936
             that we can check at the end that we've used them
1937
             all.  */
1938
          frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1939
 
1940
          /* While at that, make sure the ret instruction makes to the
1941
             right location in the PLT.  We could do it only when we
1942
             got to 0, but since the check at the end will only print
1943
             a warning, make sure we have the ret in place in case the
1944
             warning is missed.  */
1945
          bfd_put_32 (output_bfd, 0xc03a4000,
1946
                      frvfdpic_plt_section (info)->contents
1947
                      + frvfdpic_plt_tls_ret_offset (info));
1948
        }
1949
      else
1950
        {
1951
          if (idx == 0
1952
              && (bfd_is_abs_section (sec)
1953
                  || bfd_is_und_section (sec)))
1954
            {
1955
              if (! elf_hash_table (info)->tls_sec)
1956
                {
1957
                  (*info->callbacks->undefined_symbol)
1958
                    (info, "TLS section", elf_hash_table (info)->dynobj,
1959
                     frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1960
                  return FALSE;
1961
                }
1962
              idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1963
              ad += FRVFDPIC_TLS_BIAS;
1964
            }
1965
 
1966
          _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1967
                                   _bfd_elf_section_offset
1968
                                   (output_bfd, info,
1969
                                    frvfdpic_got_section (info),
1970
                                    frvfdpic_got_initial_offset (info)
1971
                                    + entry->tlsdesc_entry)
1972
                                   + frvfdpic_got_section (info)
1973
                                   ->output_section->vma
1974
                                   + frvfdpic_got_section (info)
1975
                                   ->output_offset,
1976
                                   R_FRV_TLSDESC_VALUE, idx, ad, entry);
1977
 
1978
          bfd_put_32 (output_bfd, 0,
1979
                      frvfdpic_got_section (info)->contents
1980
                      + frvfdpic_got_initial_offset (info)
1981
                      + entry->tlsdesc_entry);
1982
        }
1983
 
1984
      bfd_put_32 (output_bfd, ad,
1985
                  frvfdpic_got_section (info)->contents
1986
                  + frvfdpic_got_initial_offset (info)
1987
                  + entry->tlsdesc_entry + 4);
1988
    }
1989
 
1990
  /* Generate code for the get-TLS-offset PLT entry.  */
1991
  if (entry->tlsplt_entry != (bfd_vma) -1)
1992
    {
1993
      bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1994
        + entry->tlsplt_entry;
1995
 
1996
      if (info->executable
1997
          && (entry->symndx != -1
1998
              || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1999
        {
2000
          int idx = dynindx;
2001
          bfd_vma ad = addend;
2002
 
2003
          /* sec may be NULL when referencing an undefweak symbol
2004
             while linking a static executable.  */
2005
          if (!sec)
2006
            {
2007
              BFD_ASSERT (entry->symndx == -1
2008
                          && entry->d.h->root.type == bfd_link_hash_undefweak);
2009
            }
2010
          else
2011
            {
2012
              if (entry->symndx == -1)
2013
                ad += entry->d.h->root.u.def.value;
2014
              else
2015
                ad += sym->st_value;
2016
              ad += sec->output_offset;
2017
              if (sec->output_section
2018
                  && elf_section_data (sec->output_section))
2019
                idx = elf_section_data (sec->output_section)->dynindx;
2020
              else
2021
                idx = 0;
2022
            }
2023
 
2024
          /* *ABS*+addend is special for TLS relocations, use only the
2025
             addend for the TLS offset, and take the module id as
2026
             0.  */
2027
          if (idx == 0
2028
              && (bfd_is_abs_section (sec)
2029
                  || bfd_is_und_section (sec)))
2030
            ;
2031
          /* For other TLS symbols that bind locally, add the section
2032
             TLS offset to the addend.  */
2033
          else if (sec)
2034
            ad += sec->output_section->vma - tls_biased_base (info);
2035
 
2036
          if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
2037
              && (bfd_signed_vma)ad < (1 << (16 - 1)))
2038
            {
2039
              /* setlos lo(ad), gr9 */
2040
              bfd_put_32 (output_bfd,
2041
                          0x92fc0000
2042
                          | (ad
2043
                             & (((bfd_vma)1 << 16) - 1)),
2044
                          plt_code);
2045
              plt_code += 4;
2046
            }
2047
          else
2048
            {
2049
              /* sethi.p hi(ad), gr9
2050
                 setlo lo(ad), gr9 */
2051
              bfd_put_32 (output_bfd,
2052
                          0x12f80000
2053
                          | ((ad >> 16)
2054
                             & (((bfd_vma)1 << 16) - 1)),
2055
                          plt_code);
2056
              plt_code += 4;
2057
              bfd_put_32 (output_bfd,
2058
                          0x92f40000
2059
                          | (ad
2060
                             & (((bfd_vma)1 << 16) - 1)),
2061
                          plt_code);
2062
              plt_code += 4;
2063
            }
2064
          /* ret */
2065
          bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2066
        }
2067
      else if (entry->tlsoff_entry)
2068
        {
2069
          /* Figure out what kind of PLT entry we need, depending on the
2070
             location of the TLS descriptor within the GOT.  */
2071
          if (entry->tlsoff_entry >= -(1 << (12 - 1))
2072
              && entry->tlsoff_entry < (1 << (12 - 1)))
2073
            {
2074
              /* ldi @(gr15, tlsoff_entry), gr9 */
2075
              bfd_put_32 (output_bfd,
2076
                          0x92c8f000 | (entry->tlsoff_entry
2077
                                        & ((1 << 12) - 1)),
2078
                          plt_code);
2079
              plt_code += 4;
2080
            }
2081
          else
2082
            {
2083
              if (entry->tlsoff_entry >= -(1 << (16 - 1))
2084
                  && entry->tlsoff_entry < (1 << (16 - 1)))
2085
                {
2086
                  /* setlos lo(tlsoff_entry), gr8 */
2087
                  bfd_put_32 (output_bfd,
2088
                              0x90fc0000
2089
                              | (entry->tlsoff_entry
2090
                                 & (((bfd_vma)1 << 16) - 1)),
2091
                              plt_code);
2092
                  plt_code += 4;
2093
                }
2094
              else
2095
                {
2096
                  /* sethi.p hi(tlsoff_entry), gr8
2097
                     setlo lo(tlsoff_entry), gr8 */
2098
                  bfd_put_32 (output_bfd,
2099
                              0x10f80000
2100
                              | ((entry->tlsoff_entry >> 16)
2101
                                 & (((bfd_vma)1 << 16) - 1)),
2102
                              plt_code);
2103
                  plt_code += 4;
2104
                  bfd_put_32 (output_bfd,
2105
                              0x90f40000
2106
                              | (entry->tlsoff_entry
2107
                                 & (((bfd_vma)1 << 16) - 1)),
2108
                              plt_code);
2109
                  plt_code += 4;
2110
                }
2111
              /* ld @(gr15,gr8),gr9 */
2112
              bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2113
              plt_code += 4;
2114
            }
2115
          /* ret */
2116
          bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2117
        }
2118
      else
2119
        {
2120
          BFD_ASSERT (entry->tlsdesc_entry);
2121
 
2122
          /* Figure out what kind of PLT entry we need, depending on the
2123
             location of the TLS descriptor within the GOT.  */
2124
          if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2125
              && entry->tlsdesc_entry < (1 << (12 - 1)))
2126
            {
2127
              /* lddi @(gr15, tlsdesc_entry), gr8 */
2128
              bfd_put_32 (output_bfd,
2129
                          0x90ccf000 | (entry->tlsdesc_entry
2130
                                        & ((1 << 12) - 1)),
2131
                          plt_code);
2132
              plt_code += 4;
2133
            }
2134
          else
2135
            {
2136
              if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2137
                  && entry->tlsdesc_entry < (1 << (16 - 1)))
2138
                {
2139
                  /* setlos lo(tlsdesc_entry), gr8 */
2140
                  bfd_put_32 (output_bfd,
2141
                              0x90fc0000
2142
                              | (entry->tlsdesc_entry
2143
                                 & (((bfd_vma)1 << 16) - 1)),
2144
                              plt_code);
2145
                  plt_code += 4;
2146
                }
2147
              else
2148
                {
2149
                  /* sethi.p hi(tlsdesc_entry), gr8
2150
                     setlo lo(tlsdesc_entry), gr8 */
2151
                  bfd_put_32 (output_bfd,
2152
                              0x10f80000
2153
                              | ((entry->tlsdesc_entry >> 16)
2154
                                 & (((bfd_vma)1 << 16) - 1)),
2155
                              plt_code);
2156
                  plt_code += 4;
2157
                  bfd_put_32 (output_bfd,
2158
                              0x90f40000
2159
                              | (entry->tlsdesc_entry
2160
                                 & (((bfd_vma)1 << 16) - 1)),
2161
                              plt_code);
2162
                  plt_code += 4;
2163
                }
2164
              /* ldd @(gr15,gr8),gr8 */
2165
              bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2166
              plt_code += 4;
2167
            }
2168
          /* jmpl @(gr8,gr0) */
2169
          bfd_put_32 (output_bfd, 0x80308000, plt_code);
2170
        }
2171
    }
2172
 
2173
  return TRUE;
2174
}
2175
 
2176
/* Handle an FRV small data reloc.  */
2177
 
2178
static bfd_reloc_status_type
2179
elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
2180
                            contents, value)
2181
     struct bfd_link_info *info;
2182
     bfd *input_bfd;
2183
     asection *input_section;
2184
     Elf_Internal_Rela *relocation;
2185
     bfd_byte *contents;
2186
     bfd_vma value;
2187
{
2188
  bfd_vma insn;
2189
  bfd_vma gp;
2190
  struct bfd_link_hash_entry *h;
2191
 
2192
  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2193
 
2194
  gp = (h->u.def.value
2195
        + h->u.def.section->output_section->vma
2196
        + h->u.def.section->output_offset);
2197
 
2198
  value -= input_section->output_section->vma;
2199
  value -= (gp - input_section->output_section->vma);
2200
 
2201
  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2202
 
2203
  value += relocation->r_addend;
2204
 
2205
  if ((long) value > 0x7ff || (long) value < -0x800)
2206
    return bfd_reloc_overflow;
2207
 
2208
  bfd_put_32 (input_bfd,
2209
              (insn & 0xfffff000) | (value & 0xfff),
2210
              contents + relocation->r_offset);
2211
 
2212
  return bfd_reloc_ok;
2213
}
2214
 
2215
/* Handle an FRV small data reloc. for the u12 field.  */
2216
 
2217
static bfd_reloc_status_type
2218
elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
2219
                             contents, value)
2220
     struct bfd_link_info *info;
2221
     bfd *input_bfd;
2222
     asection *input_section;
2223
     Elf_Internal_Rela *relocation;
2224
     bfd_byte *contents;
2225
     bfd_vma value;
2226
{
2227
  bfd_vma insn;
2228
  bfd_vma gp;
2229
  struct bfd_link_hash_entry *h;
2230
  bfd_vma mask;
2231
 
2232
  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2233
 
2234
  gp = (h->u.def.value
2235
        + h->u.def.section->output_section->vma
2236
        + h->u.def.section->output_offset);
2237
 
2238
  value -= input_section->output_section->vma;
2239
  value -= (gp - input_section->output_section->vma);
2240
 
2241
  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2242
 
2243
  value += relocation->r_addend;
2244
 
2245
  if ((long) value > 0x7ff || (long) value < -0x800)
2246
    return bfd_reloc_overflow;
2247
 
2248
  /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0.  */
2249
  mask = 0x3f03f;
2250
  insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2251
 
2252
  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2253
 
2254
  return bfd_reloc_ok;
2255
}
2256
 
2257
/* Handle an FRV ELF HI16 reloc.  */
2258
 
2259
static bfd_reloc_status_type
2260
elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
2261
     bfd *input_bfd;
2262
     Elf_Internal_Rela *relhi;
2263
     bfd_byte *contents;
2264
     bfd_vma value;
2265
{
2266
  bfd_vma insn;
2267
 
2268
  insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2269
 
2270
  value += relhi->r_addend;
2271
  value = ((value >> 16) & 0xffff);
2272
 
2273
  insn = (insn & 0xffff0000) | value;
2274
 
2275
  if ((long) value > 0xffff || (long) value < -0x10000)
2276
    return bfd_reloc_overflow;
2277
 
2278
  bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2279
  return bfd_reloc_ok;
2280
 
2281
}
2282
static bfd_reloc_status_type
2283
elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
2284
     bfd *input_bfd;
2285
     Elf_Internal_Rela *rello;
2286
     bfd_byte *contents;
2287
     bfd_vma value;
2288
{
2289
  bfd_vma insn;
2290
 
2291
  insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2292
 
2293
  value += rello->r_addend;
2294
  value = value & 0xffff;
2295
 
2296
  insn = (insn & 0xffff0000) | value;
2297
 
2298
  if ((long) value > 0xffff || (long) value < -0x10000)
2299
    return bfd_reloc_overflow;
2300
 
2301
  bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2302
  return bfd_reloc_ok;
2303
}
2304
 
2305
/* Perform the relocation for the CALL label24 instruction.  */
2306
 
2307
static bfd_reloc_status_type
2308
elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
2309
     bfd *input_bfd;
2310
     asection *input_section;
2311
     Elf_Internal_Rela *rello;
2312
     bfd_byte *contents;
2313
     bfd_vma value;
2314
{
2315
  bfd_vma insn;
2316
  bfd_vma label6;
2317
  bfd_vma label18;
2318
 
2319
  /* The format for the call instruction is:
2320
 
2321
 
2322
      label6 opcode  label18
2323
 
2324
    The branch calculation is: pc + (4*label24)
2325
    where label24 is the concatenation of label6 and label18.  */
2326
 
2327
  /* Grab the instruction.  */
2328
  insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2329
 
2330
  value -= input_section->output_section->vma + input_section->output_offset;
2331
  value -= rello->r_offset;
2332
  value += rello->r_addend;
2333
 
2334
  value = value >> 2;
2335
 
2336
  label6  = value & 0xfc0000;
2337
  label6  = label6 << 7;
2338
 
2339
  label18 = value & 0x3ffff;
2340
 
2341
  insn = insn & 0x803c0000;
2342
  insn = insn | label6;
2343
  insn = insn | label18;
2344
 
2345
  bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2346
 
2347
  return bfd_reloc_ok;
2348
}
2349
 
2350
static bfd_reloc_status_type
2351
elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
2352
                            contents, value)
2353
     struct bfd_link_info *info;
2354
     bfd *input_bfd;
2355
     asection *input_section;
2356
     Elf_Internal_Rela *relocation;
2357
     bfd_byte *contents;
2358
     bfd_vma value;
2359
{
2360
  bfd_vma insn;
2361
  bfd_vma gp;
2362
  struct bfd_link_hash_entry *h;
2363
 
2364
  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2365
 
2366
  gp = (h->u.def.value
2367
        + h->u.def.section->output_section->vma
2368
        + h->u.def.section->output_offset);
2369
 
2370
  value -= input_section->output_section->vma;
2371
  value -= (gp - input_section->output_section->vma);
2372
  value += relocation->r_addend;
2373
  value = ((value >> 16) & 0xffff);
2374
 
2375
  if ((long) value > 0xffff || (long) value < -0x10000)
2376
    return bfd_reloc_overflow;
2377
 
2378
  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2379
  insn = (insn & 0xffff0000) | value;
2380
 
2381
  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2382
  return bfd_reloc_ok;
2383
}
2384
 
2385
static bfd_reloc_status_type
2386
elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
2387
                            contents, value)
2388
     struct bfd_link_info *info;
2389
     bfd *input_bfd;
2390
     asection *input_section;
2391
     Elf_Internal_Rela *relocation;
2392
     bfd_byte *contents;
2393
     bfd_vma value;
2394
{
2395
  bfd_vma insn;
2396
  bfd_vma gp;
2397
  struct bfd_link_hash_entry *h;
2398
 
2399
  h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2400
 
2401
  gp = (h->u.def.value
2402
        + h->u.def.section->output_section->vma
2403
        + h->u.def.section->output_offset);
2404
 
2405
  value -= input_section->output_section->vma;
2406
  value -= (gp - input_section->output_section->vma);
2407
  value += relocation->r_addend;
2408
  value = value & 0xffff;
2409
 
2410
  if ((long) value > 0xffff || (long) value < -0x10000)
2411
    return bfd_reloc_overflow;
2412
 
2413
  insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2414
  insn = (insn & 0xffff0000) | value;
2415
 
2416
  bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2417
 
2418
 return bfd_reloc_ok;
2419
}
2420
 
2421
static reloc_howto_type *
2422
frv_reloc_type_lookup (abfd, code)
2423
     bfd *abfd ATTRIBUTE_UNUSED;
2424
     bfd_reloc_code_real_type code;
2425
{
2426
  switch (code)
2427
    {
2428
    default:
2429
      break;
2430
 
2431
    case BFD_RELOC_NONE:
2432
      return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2433
 
2434
    case BFD_RELOC_32:
2435
      if (elf_elfheader (abfd)->e_type == ET_EXEC
2436
          || elf_elfheader (abfd)->e_type == ET_DYN)
2437
        return &elf32_frv_rel_32_howto;
2438
      /* Fall through.  */
2439
    case BFD_RELOC_CTOR:
2440
      return &elf32_frv_howto_table[ (int) R_FRV_32];
2441
 
2442
    case BFD_RELOC_FRV_LABEL16:
2443
      return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2444
 
2445
    case BFD_RELOC_FRV_LABEL24:
2446
      return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2447
 
2448
    case BFD_RELOC_FRV_LO16:
2449
      return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2450
 
2451
    case BFD_RELOC_FRV_HI16:
2452
      return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2453
 
2454
    case BFD_RELOC_FRV_GPREL12:
2455
      return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2456
 
2457
    case BFD_RELOC_FRV_GPRELU12:
2458
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2459
 
2460
    case BFD_RELOC_FRV_GPREL32:
2461
      return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2462
 
2463
    case BFD_RELOC_FRV_GPRELHI:
2464
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2465
 
2466
    case BFD_RELOC_FRV_GPRELLO:
2467
      return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2468
 
2469
    case BFD_RELOC_FRV_GOT12:
2470
      return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2471
 
2472
    case BFD_RELOC_FRV_GOTHI:
2473
      return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2474
 
2475
    case BFD_RELOC_FRV_GOTLO:
2476
      return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2477
 
2478
    case BFD_RELOC_FRV_FUNCDESC:
2479
      if (elf_elfheader (abfd)->e_type == ET_EXEC
2480
          || elf_elfheader (abfd)->e_type == ET_DYN)
2481
        return &elf32_frv_rel_funcdesc_howto;
2482
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2483
 
2484
    case BFD_RELOC_FRV_FUNCDESC_GOT12:
2485
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2486
 
2487
    case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2488
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2489
 
2490
    case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2491
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2492
 
2493
    case BFD_RELOC_FRV_FUNCDESC_VALUE:
2494
      if (elf_elfheader (abfd)->e_type == ET_EXEC
2495
          || elf_elfheader (abfd)->e_type == ET_DYN)
2496
        return &elf32_frv_rel_funcdesc_value_howto;
2497
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2498
 
2499
    case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2500
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2501
 
2502
    case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2503
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2504
 
2505
    case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2506
      return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2507
 
2508
    case BFD_RELOC_FRV_GOTOFF12:
2509
      return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2510
 
2511
    case BFD_RELOC_FRV_GOTOFFHI:
2512
      return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2513
 
2514
    case BFD_RELOC_FRV_GOTOFFLO:
2515
      return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2516
 
2517
    case BFD_RELOC_FRV_GETTLSOFF:
2518
      return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2519
 
2520
    case BFD_RELOC_FRV_TLSDESC_VALUE:
2521
      if (elf_elfheader (abfd)->e_type == ET_EXEC
2522
          || elf_elfheader (abfd)->e_type == ET_DYN)
2523
        return &elf32_frv_rel_tlsdesc_value_howto;
2524
      return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2525
 
2526
    case BFD_RELOC_FRV_GOTTLSDESC12:
2527
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2528
 
2529
    case BFD_RELOC_FRV_GOTTLSDESCHI:
2530
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2531
 
2532
    case BFD_RELOC_FRV_GOTTLSDESCLO:
2533
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2534
 
2535
    case BFD_RELOC_FRV_TLSMOFF12:
2536
      return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2537
 
2538
    case BFD_RELOC_FRV_TLSMOFFHI:
2539
      return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2540
 
2541
    case BFD_RELOC_FRV_TLSMOFFLO:
2542
      return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2543
 
2544
    case BFD_RELOC_FRV_GOTTLSOFF12:
2545
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2546
 
2547
    case BFD_RELOC_FRV_GOTTLSOFFHI:
2548
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2549
 
2550
    case BFD_RELOC_FRV_GOTTLSOFFLO:
2551
      return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2552
 
2553
    case BFD_RELOC_FRV_TLSOFF:
2554
      if (elf_elfheader (abfd)->e_type == ET_EXEC
2555
          || elf_elfheader (abfd)->e_type == ET_DYN)
2556
        return &elf32_frv_rel_tlsoff_howto;
2557
      return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2558
 
2559
    case BFD_RELOC_FRV_TLSDESC_RELAX:
2560
      return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2561
 
2562
    case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2563
      return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2564
 
2565
    case BFD_RELOC_FRV_TLSOFF_RELAX:
2566
      return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2567
 
2568
    case BFD_RELOC_FRV_TLSMOFF:
2569
      return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2570
 
2571
    case BFD_RELOC_VTABLE_INHERIT:
2572
      return &elf32_frv_vtinherit_howto;
2573
 
2574
    case BFD_RELOC_VTABLE_ENTRY:
2575
      return &elf32_frv_vtentry_howto;
2576
    }
2577
 
2578
  return NULL;
2579
}
2580
 
2581
static reloc_howto_type *
2582
frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2583
{
2584
  unsigned int i;
2585
 
2586
  for (i = 0;
2587
       i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2588
       i++)
2589
    if (elf32_frv_howto_table[i].name != NULL
2590
        && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2591
      return &elf32_frv_howto_table[i];
2592
 
2593
  if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2594
    return &elf32_frv_vtinherit_howto;
2595
  if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2596
    return &elf32_frv_vtentry_howto;
2597
 
2598
  return NULL;
2599
}
2600
 
2601
/* Set the howto pointer for an FRV ELF reloc.  */
2602
 
2603
static void
2604
frv_info_to_howto_rela (abfd, cache_ptr, dst)
2605
     bfd *abfd ATTRIBUTE_UNUSED;
2606
     arelent *cache_ptr;
2607
     Elf_Internal_Rela *dst;
2608
{
2609
  unsigned int r_type;
2610
 
2611
  r_type = ELF32_R_TYPE (dst->r_info);
2612
  switch (r_type)
2613
    {
2614
    case R_FRV_GNU_VTINHERIT:
2615
      cache_ptr->howto = &elf32_frv_vtinherit_howto;
2616
      break;
2617
 
2618
    case R_FRV_GNU_VTENTRY:
2619
      cache_ptr->howto = &elf32_frv_vtentry_howto;
2620
      break;
2621
 
2622
    default:
2623
      cache_ptr->howto = & elf32_frv_howto_table [r_type];
2624
      break;
2625
    }
2626
}
2627
 
2628
/* Set the howto pointer for an FRV ELF REL reloc.  */
2629
static void
2630
frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2631
                            arelent *cache_ptr, Elf_Internal_Rela *dst)
2632
{
2633
  unsigned int r_type;
2634
 
2635
  r_type = ELF32_R_TYPE (dst->r_info);
2636
  switch (r_type)
2637
    {
2638
    case R_FRV_32:
2639
      cache_ptr->howto = &elf32_frv_rel_32_howto;
2640
      break;
2641
 
2642
    case R_FRV_FUNCDESC:
2643
      cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2644
      break;
2645
 
2646
    case R_FRV_FUNCDESC_VALUE:
2647
      cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2648
      break;
2649
 
2650
    case R_FRV_TLSDESC_VALUE:
2651
      cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2652
      break;
2653
 
2654
    case R_FRV_TLSOFF:
2655
      cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2656
      break;
2657
 
2658
    default:
2659
      cache_ptr->howto = NULL;
2660
      break;
2661
    }
2662
}
2663
 
2664
/* Perform a single relocation.  By default we use the standard BFD
2665
   routines, but a few relocs, we have to do them ourselves.  */
2666
 
2667
static bfd_reloc_status_type
2668
frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
2669
                         relocation)
2670
     reloc_howto_type *howto;
2671
     bfd *input_bfd;
2672
     asection *input_section;
2673
     bfd_byte *contents;
2674
     Elf_Internal_Rela *rel;
2675
     bfd_vma relocation;
2676
{
2677
  return _bfd_final_link_relocate (howto, input_bfd, input_section,
2678
                                   contents, rel->r_offset, relocation,
2679
                                   rel->r_addend);
2680
}
2681
 
2682
 
2683
/* Relocate an FRV ELF section.
2684
 
2685
   The RELOCATE_SECTION function is called by the new ELF backend linker
2686
   to handle the relocations for a section.
2687
 
2688
   The relocs are always passed as Rela structures; if the section
2689
   actually uses Rel structures, the r_addend field will always be
2690
   zero.
2691
 
2692
   This function is responsible for adjusting the section contents as
2693
   necessary, and (if using Rela relocs and generating a relocatable
2694
   output file) adjusting the reloc addend as necessary.
2695
 
2696
   This function does not have to worry about setting the reloc
2697
   address or the reloc symbol index.
2698
 
2699
   LOCAL_SYMS is a pointer to the swapped in local symbols.
2700
 
2701
   LOCAL_SECTIONS is an array giving the section in the input file
2702
   corresponding to the st_shndx field of each local symbol.
2703
 
2704
   The global hash table entry for the global symbols can be found
2705
   via elf_sym_hashes (input_bfd).
2706
 
2707
   When generating relocatable output, this function must handle
2708
   STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2709
   going to be the section symbol corresponding to the output
2710
   section, which means that the addend must be adjusted
2711
   accordingly.  */
2712
 
2713
static bfd_boolean
2714
elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
2715
                            contents, relocs, local_syms, local_sections)
2716
     bfd *output_bfd ATTRIBUTE_UNUSED;
2717
     struct bfd_link_info *info;
2718
     bfd *input_bfd;
2719
     asection *input_section;
2720
     bfd_byte *contents;
2721
     Elf_Internal_Rela *relocs;
2722
     Elf_Internal_Sym *local_syms;
2723
     asection **local_sections;
2724
{
2725
  Elf_Internal_Shdr *symtab_hdr;
2726
  struct elf_link_hash_entry **sym_hashes;
2727
  Elf_Internal_Rela *rel;
2728
  Elf_Internal_Rela *relend;
2729
  unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2730
    check_segment[2];
2731
  int silence_segment_error = !(info->shared || info->pie);
2732
  unsigned long insn;
2733
 
2734
  symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2735
  sym_hashes = elf_sym_hashes (input_bfd);
2736
  relend     = relocs + input_section->reloc_count;
2737
 
2738
  isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2739
                                            input_section->output_section);
2740
  if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2741
    got_segment = _frvfdpic_osec_to_segment (output_bfd,
2742
                                             frvfdpic_got_section (info)
2743
                                             ->output_section);
2744
  else
2745
    got_segment = -1;
2746
  if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2747
    gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2748
                                               frvfdpic_gotfixup_section (info)
2749
                                               ->output_section);
2750
  else
2751
    gprel_segment = -1;
2752
  if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2753
    plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2754
                                             frvfdpic_plt_section (info)
2755
                                             ->output_section);
2756
  else
2757
    plt_segment = -1;
2758
  if (elf_hash_table (info)->tls_sec)
2759
    tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2760
                                             elf_hash_table (info)->tls_sec);
2761
  else
2762
    tls_segment = -1;
2763
 
2764
  for (rel = relocs; rel < relend; rel ++)
2765
    {
2766
      reloc_howto_type *howto;
2767
      unsigned long r_symndx;
2768
      Elf_Internal_Sym *sym;
2769
      asection *sec;
2770
      struct elf_link_hash_entry *h;
2771
      bfd_vma relocation;
2772
      bfd_reloc_status_type r;
2773
      const char *name;
2774
      int r_type;
2775
      asection *osec;
2776
      struct frvfdpic_relocs_info *picrel;
2777
      bfd_vma orig_addend = rel->r_addend;
2778
 
2779
      r_type = ELF32_R_TYPE (rel->r_info);
2780
 
2781
      if (   r_type == R_FRV_GNU_VTINHERIT
2782
          || r_type == R_FRV_GNU_VTENTRY)
2783
        continue;
2784
 
2785
      r_symndx = ELF32_R_SYM (rel->r_info);
2786
      howto  = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2787
      h      = NULL;
2788
      sym    = NULL;
2789
      sec    = NULL;
2790
 
2791
      if (r_symndx < symtab_hdr->sh_info)
2792
        {
2793
          sym = local_syms + r_symndx;
2794
          osec = sec = local_sections [r_symndx];
2795
          relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2796
 
2797
          name = bfd_elf_string_from_elf_section
2798
            (input_bfd, symtab_hdr->sh_link, sym->st_name);
2799
          if (name == NULL || name[0] == 0)
2800
            name = bfd_section_name (input_bfd, sec);
2801
        }
2802
      else
2803
        {
2804
          bfd_boolean warned;
2805
          bfd_boolean unresolved_reloc;
2806
 
2807
          RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2808
                                   r_symndx, symtab_hdr, sym_hashes,
2809
                                   h, sec, relocation,
2810
                                   unresolved_reloc, warned);
2811
          osec = sec;
2812
          name = h->root.root.string;
2813
        }
2814
 
2815
      if (sec != NULL && elf_discarded_section (sec))
2816
        RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2817
                                         rel, relend, howto, contents);
2818
 
2819
      if (info->relocatable)
2820
        continue;
2821
 
2822
      if (r_type != R_FRV_TLSMOFF
2823
          && h != NULL
2824
          && (h->root.type == bfd_link_hash_defined
2825
              || h->root.type == bfd_link_hash_defweak)
2826
          && !FRVFDPIC_SYM_LOCAL (info, h))
2827
        {
2828
          osec = sec = NULL;
2829
          relocation = 0;
2830
        }
2831
 
2832
      switch (r_type)
2833
        {
2834
        case R_FRV_LABEL24:
2835
        case R_FRV_32:
2836
          if (! IS_FDPIC (output_bfd))
2837
            goto non_fdpic;
2838
 
2839
        case R_FRV_GOT12:
2840
        case R_FRV_GOTHI:
2841
        case R_FRV_GOTLO:
2842
        case R_FRV_FUNCDESC_GOT12:
2843
        case R_FRV_FUNCDESC_GOTHI:
2844
        case R_FRV_FUNCDESC_GOTLO:
2845
        case R_FRV_GOTOFF12:
2846
        case R_FRV_GOTOFFHI:
2847
        case R_FRV_GOTOFFLO:
2848
        case R_FRV_FUNCDESC_GOTOFF12:
2849
        case R_FRV_FUNCDESC_GOTOFFHI:
2850
        case R_FRV_FUNCDESC_GOTOFFLO:
2851
        case R_FRV_FUNCDESC:
2852
        case R_FRV_FUNCDESC_VALUE:
2853
        case R_FRV_GETTLSOFF:
2854
        case R_FRV_TLSDESC_VALUE:
2855
        case R_FRV_GOTTLSDESC12:
2856
        case R_FRV_GOTTLSDESCHI:
2857
        case R_FRV_GOTTLSDESCLO:
2858
        case R_FRV_TLSMOFF12:
2859
        case R_FRV_TLSMOFFHI:
2860
        case R_FRV_TLSMOFFLO:
2861
        case R_FRV_GOTTLSOFF12:
2862
        case R_FRV_GOTTLSOFFHI:
2863
        case R_FRV_GOTTLSOFFLO:
2864
        case R_FRV_TLSOFF:
2865
        case R_FRV_TLSDESC_RELAX:
2866
        case R_FRV_GETTLSOFF_RELAX:
2867
        case R_FRV_TLSOFF_RELAX:
2868
        case R_FRV_TLSMOFF:
2869
          if (h != NULL)
2870
            picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2871
                                                      (info), input_bfd, h,
2872
                                                      orig_addend, INSERT);
2873
          else
2874
            /* In order to find the entry we created before, we must
2875
               use the original addend, not the one that may have been
2876
               modified by _bfd_elf_rela_local_sym().  */
2877
            picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2878
                                                     (info), input_bfd, r_symndx,
2879
                                                     orig_addend, INSERT);
2880
          if (! picrel)
2881
            return FALSE;
2882
 
2883
          if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2884
                                                      osec, sym,
2885
                                                      rel->r_addend))
2886
            {
2887
              info->callbacks->einfo
2888
                (_("%H: relocation to `%s+%v'"
2889
                   " may have caused the error above\n"),
2890
                 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2891
              return FALSE;
2892
            }
2893
 
2894
          break;
2895
 
2896
        default:
2897
        non_fdpic:
2898
          picrel = NULL;
2899 163 khays
          if (h
2900
              && ! FRVFDPIC_SYM_LOCAL (info, h)
2901
              && _bfd_elf_section_offset (output_bfd, info, input_section,
2902
                                          rel->r_offset) != (bfd_vma) -1)
2903 14 khays
            {
2904
              info->callbacks->einfo
2905
                (_("%H: relocation references symbol"
2906
                   " not defined in the module\n"),
2907
                 input_bfd, input_section, rel->r_offset);
2908
              return FALSE;
2909
            }
2910
          break;
2911
        }
2912
 
2913
      switch (r_type)
2914
        {
2915
        case R_FRV_GETTLSOFF:
2916
        case R_FRV_TLSDESC_VALUE:
2917
        case R_FRV_GOTTLSDESC12:
2918
        case R_FRV_GOTTLSDESCHI:
2919
        case R_FRV_GOTTLSDESCLO:
2920
        case R_FRV_TLSMOFF12:
2921
        case R_FRV_TLSMOFFHI:
2922
        case R_FRV_TLSMOFFLO:
2923
        case R_FRV_GOTTLSOFF12:
2924
        case R_FRV_GOTTLSOFFHI:
2925
        case R_FRV_GOTTLSOFFLO:
2926
        case R_FRV_TLSOFF:
2927
        case R_FRV_TLSDESC_RELAX:
2928
        case R_FRV_GETTLSOFF_RELAX:
2929
        case R_FRV_TLSOFF_RELAX:
2930
        case R_FRV_TLSMOFF:
2931
          if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2932
            relocation += tls_biased_base (info);
2933
          break;
2934
 
2935
        default:
2936
          break;
2937
        }
2938
 
2939
      /* Try to apply TLS relaxations.  */
2940
      if (1)
2941
        switch (r_type)
2942
          {
2943
 
2944
#define LOCAL_EXEC_P(info, picrel) \
2945
  ((info)->executable \
2946
   && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2947
#define INITIAL_EXEC_P(info, picrel) \
2948
  (((info)->executable || (info)->flags & DF_STATIC_TLS) \
2949
   && (picrel)->tlsoff_entry)
2950
 
2951
#define IN_RANGE_FOR_OFST12_P(value) \
2952
  ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2953
#define IN_RANGE_FOR_SETLOS_P(value) \
2954
  ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2955
#define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2956
  (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2957
 
2958
#define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2959
  (LOCAL_EXEC_P ((info), (picrel)) \
2960
   && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2961
#define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2962
  (INITIAL_EXEC_P ((info), (picrel)) \
2963
   && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2964
 
2965
#define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2966
  (LOCAL_EXEC_P ((info), (picrel)))
2967
#define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2968
  (INITIAL_EXEC_P ((info), (picrel)))
2969
 
2970
#define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2971
  (LOCAL_EXEC_P ((info), (picrel)) \
2972
   && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2973
 
2974
          case R_FRV_GETTLSOFF:
2975
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2976
 
2977
            /* Is this a call instruction?  */
2978
            if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2979
              {
2980
                info->callbacks->einfo
2981
                  (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2982
                   input_bfd, input_section, rel->r_offset);
2983
                return FALSE;
2984
              }
2985
 
2986
            if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2987
                                              relocation + rel->r_addend))
2988
              {
2989
                /* Replace the call instruction (except the packing bit)
2990
                   with setlos #tlsmofflo(symbol+offset), gr9.  */
2991
                insn &= (unsigned long)0x80000000;
2992
                insn |= (unsigned long)0x12fc0000;
2993
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2994
 
2995
                r_type = R_FRV_TLSMOFFLO;
2996
                howto  = elf32_frv_howto_table + r_type;
2997
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2998
              }
2999
 
3000
            else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
3001
              {
3002
                /* Replace the call instruction (except the packing bit)
3003
                   with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9.  */
3004
                insn &= (unsigned long)0x80000000;
3005
                insn |= (unsigned long)0x12c8f000;
3006
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3007
 
3008
                r_type = R_FRV_GOTTLSOFF12;
3009
                howto  = elf32_frv_howto_table + r_type;
3010
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3011
              }
3012
 
3013
            break;
3014
 
3015
          case R_FRV_GOTTLSDESC12:
3016
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3017
 
3018
            /* Is this an lddi instruction?  */
3019
            if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
3020
              {
3021
                info->callbacks->einfo
3022
                  (_("%H: R_FRV_GOTTLSDESC12"
3023
                     " not applied to an lddi instruction\n"),
3024
                   input_bfd, input_section, rel->r_offset);
3025
                return FALSE;
3026
              }
3027
 
3028
            if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3029
                                            relocation + rel->r_addend)
3030
                && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3031
                                                  info))
3032
              {
3033
                /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3034
                   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3035
                   Preserve the packing bit.  */
3036
                insn = (insn & (unsigned long)0x80000000)
3037
                  | ((insn + (unsigned long)0x02000000)
3038
                     & (unsigned long)0x7e000000);
3039
                insn |= (unsigned long)0x00fc0000;
3040
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3041
 
3042
                r_type = R_FRV_TLSMOFFLO;
3043
                howto  = elf32_frv_howto_table + r_type;
3044
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3045
              }
3046
 
3047
            else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3048
                                                 relocation + rel->r_addend))
3049
              {
3050
                /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3051
                   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3052
                   Preserve the packing bit.  */
3053
                insn = (insn & (unsigned long)0x80000000)
3054
                  | ((insn + (unsigned long)0x02000000)
3055
                     & (unsigned long)0x7e000000);
3056
                insn |= (unsigned long)0x00f80000;
3057
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3058
 
3059
                r_type = R_FRV_TLSMOFFHI;
3060
                howto  = elf32_frv_howto_table + r_type;
3061
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3062
              }
3063
 
3064
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3065
              {
3066
                /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3067
                   with ldi @(grB, #gottlsoff12(symbol+offset),
3068
                   gr<C+1>.  Preserve the packing bit.  If gottlsoff12
3069
                   overflows, we'll error out, but that's sort-of ok,
3070
                   since we'd started with gottlsdesc12, that's actually
3071
                   more demanding.  Compiling with -fPIE instead of
3072
                   -fpie would fix it; linking with --relax should fix
3073
                   it as well.  */
3074
                insn = (insn & (unsigned long)0x80cbf000)
3075
                  | ((insn + (unsigned long)0x02000000)
3076
                     & (unsigned long)0x7e000000);
3077
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3078
 
3079
                r_type = R_FRV_GOTTLSOFF12;
3080
                howto  = elf32_frv_howto_table + r_type;
3081
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3082
              }
3083
 
3084
            break;
3085
 
3086
          case R_FRV_GOTTLSDESCHI:
3087
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3088
 
3089
            /* Is this a sethi instruction?  */
3090
            if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3091
              {
3092
                info->callbacks->einfo
3093
                  (_("%H: R_FRV_GOTTLSDESCHI"
3094
                     " not applied to a sethi instruction\n"),
3095
                   input_bfd, input_section, rel->r_offset);
3096
                return FALSE;
3097
              }
3098
 
3099
            if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3100
                                            relocation + rel->r_addend)
3101
                || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3102
                    && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3103
              {
3104
                /* Replace sethi with a nop.  Preserve the packing bit.  */
3105
                insn &= (unsigned long)0x80000000;
3106
                insn |= (unsigned long)0x00880000;
3107
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3108
 
3109
                /* Nothing to relocate.  */
3110
                continue;
3111
              }
3112
 
3113
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3114
              {
3115
                /* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3116
                r_type = R_FRV_GOTTLSOFFHI;
3117
                howto  = elf32_frv_howto_table + r_type;
3118
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3119
              }
3120
 
3121
            break;
3122
 
3123
          case R_FRV_GOTTLSDESCLO:
3124
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3125
 
3126
            /* Is this a setlo or setlos instruction?  */
3127
            if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3128
              {
3129
                info->callbacks->einfo
3130
                  (_("%H: R_FRV_GOTTLSDESCLO"
3131
                     " not applied to a setlo or setlos instruction\n"),
3132
                   input_bfd, input_section, rel->r_offset);
3133
                return FALSE;
3134
              }
3135
 
3136
            if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3137
                                            relocation + rel->r_addend)
3138
                || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3139
                    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3140
              {
3141
                /* Replace setlo/setlos with a nop.  Preserve the
3142
                   packing bit.  */
3143
                insn &= (unsigned long)0x80000000;
3144
                insn |= (unsigned long)0x00880000;
3145
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3146
 
3147
                /* Nothing to relocate.  */
3148
                continue;
3149
              }
3150
 
3151
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3152
              {
3153
                /* If the corresponding sethi (if it exists) decayed
3154
                   to a nop, make sure this becomes (or already is) a
3155
                   setlos, not setlo.  */
3156
                if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3157
                  {
3158
                    insn |= (unsigned long)0x00080000;
3159
                    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3160
                  }
3161
 
3162
                /* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3163
                r_type = R_FRV_GOTTLSOFFLO;
3164
                howto  = elf32_frv_howto_table + r_type;
3165
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3166
              }
3167
 
3168
            break;
3169
 
3170
          case R_FRV_TLSDESC_RELAX:
3171
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3172
 
3173
            /* Is this an ldd instruction?  */
3174
            if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3175
              {
3176
                info->callbacks->einfo
3177
                  (_("%H: R_FRV_TLSDESC_RELAX"
3178
                     " not applied to an ldd instruction\n"),
3179
                   input_bfd, input_section, rel->r_offset);
3180
                return FALSE;
3181
              }
3182
 
3183
            if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3184
                                            relocation + rel->r_addend)
3185
                && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3186
                                                  info))
3187
              {
3188
                /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3189
                   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3190
                   Preserve the packing bit.  */
3191
                insn = (insn & (unsigned long)0x80000000)
3192
                  | ((insn + (unsigned long)0x02000000)
3193
                     & (unsigned long)0x7e000000);
3194
                insn |= (unsigned long)0x00fc0000;
3195
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3196
 
3197
                r_type = R_FRV_TLSMOFFLO;
3198
                howto  = elf32_frv_howto_table + r_type;
3199
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3200
              }
3201
 
3202
            else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3203
                                                 relocation + rel->r_addend))
3204
              {
3205
                /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3206
                   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3207
                   Preserve the packing bit.  */
3208
                insn = (insn & (unsigned long)0x80000000)
3209
                  | ((insn + (unsigned long)0x02000000)
3210
                     & (unsigned long)0x7e000000);
3211
                insn |= (unsigned long)0x00f80000;
3212
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3213
 
3214
                r_type = R_FRV_TLSMOFFHI;
3215
                howto  = elf32_frv_howto_table + r_type;
3216
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3217
              }
3218
 
3219
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3220
                     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3221
              {
3222
                /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3223
                   with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3224
                   Preserve the packing bit.  */
3225
                insn = (insn & (unsigned long)0x8003f000)
3226
                  | (unsigned long)0x00c80000
3227
                  | ((insn + (unsigned long)0x02000000)
3228
                     & (unsigned long)0x7e000000);
3229
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3230
 
3231
                r_type = R_FRV_GOTTLSOFF12;
3232
                howto  = elf32_frv_howto_table + r_type;
3233
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3234
              }
3235
 
3236
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3237
              {
3238
                /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3239
                   with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3240
                   Preserve the packing bit.  */
3241
                insn = (insn & (unsigned long)0x81ffffbf)
3242
                  | ((insn + (unsigned long)0x02000000)
3243
                     & (unsigned long)0x7e000000);
3244
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3245
 
3246
                /* #tlsoff(symbol+offset) is just a relaxation
3247
                    annotation, so there's nothing left to
3248
                    relocate.  */
3249
                continue;
3250
              }
3251
 
3252
            break;
3253
 
3254
          case R_FRV_GETTLSOFF_RELAX:
3255
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3256
 
3257
            /* Is this a calll or callil instruction?  */
3258
            if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3259
              {
3260
                info->callbacks->einfo
3261
                  (_("%H: R_FRV_GETTLSOFF_RELAX"
3262
                     " not applied to a calll instruction\n"),
3263
                   input_bfd, input_section, rel->r_offset);
3264
                return FALSE;
3265
              }
3266
 
3267
            if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3268
                                            relocation + rel->r_addend)
3269
                && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3270
                                                  info))
3271
              {
3272
                /* Replace calll with a nop.  Preserve the packing bit.  */
3273
                insn &= (unsigned long)0x80000000;
3274
                insn |= (unsigned long)0x00880000;
3275
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3276
 
3277
                /* Nothing to relocate.  */
3278
                continue;
3279
              }
3280
 
3281
            else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3282
                                                 relocation + rel->r_addend))
3283
              {
3284
                /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3285
                   Preserve the packing bit.  */
3286
                insn &= (unsigned long)0x80000000;
3287
                insn |= (unsigned long)0x12f40000;
3288
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3289
 
3290
                r_type = R_FRV_TLSMOFFLO;
3291
                howto  = elf32_frv_howto_table + r_type;
3292
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3293
              }
3294
 
3295
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3296
              {
3297
                /* Replace calll with a nop.  Preserve the packing bit.  */
3298
                insn &= (unsigned long)0x80000000;
3299
                insn |= (unsigned long)0x00880000;
3300
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3301
 
3302
                /* Nothing to relocate.  */
3303
                continue;
3304
              }
3305
 
3306
            break;
3307
 
3308
          case R_FRV_GOTTLSOFF12:
3309
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3310
 
3311
            /* Is this an ldi instruction?  */
3312
            if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3313
              {
3314
                info->callbacks->einfo
3315
                  (_("%H: R_FRV_GOTTLSOFF12"
3316
                     " not applied to an ldi instruction\n"),
3317
                   input_bfd, input_section, rel->r_offset);
3318
                return FALSE;
3319
              }
3320
 
3321
            if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3322
                                              relocation + rel->r_addend))
3323
              {
3324
                /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3325
                   with setlos #tlsmofflo(symbol+offset), grC.
3326
                   Preserve the packing bit.  */
3327
                insn &= (unsigned long)0xfe000000;
3328
                insn |= (unsigned long)0x00fc0000;
3329
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3330
 
3331
                r_type = R_FRV_TLSMOFFLO;
3332
                howto  = elf32_frv_howto_table + r_type;
3333
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3334
              }
3335
 
3336
            break;
3337
 
3338
          case R_FRV_GOTTLSOFFHI:
3339
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3340
 
3341
            /* Is this a sethi instruction?  */
3342
            if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3343
              {
3344
                info->callbacks->einfo
3345
                  (_("%H: R_FRV_GOTTLSOFFHI"
3346
                     " not applied to a sethi instruction\n"),
3347
                   input_bfd, input_section, rel->r_offset);
3348
                return FALSE;
3349
              }
3350
 
3351
            if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3352
                                              relocation + rel->r_addend)
3353
                || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3354
                    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3355
              {
3356
                /* Replace sethi with a nop.  Preserve the packing bit.  */
3357
                insn &= (unsigned long)0x80000000;
3358
                insn |= (unsigned long)0x00880000;
3359
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3360
 
3361
                /* Nothing to relocate.  */
3362
                continue;
3363
              }
3364
 
3365
            break;
3366
 
3367
          case R_FRV_GOTTLSOFFLO:
3368
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3369
 
3370
            /* Is this a setlo or setlos instruction?  */
3371
            if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3372
              {
3373
                info->callbacks->einfo
3374
                  (_("%H: R_FRV_GOTTLSOFFLO"
3375
                     " not applied to a setlo or setlos instruction\n"),
3376
                   input_bfd, input_section, rel->r_offset);
3377
                return FALSE;
3378
              }
3379
 
3380
            if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3381
                                              relocation + rel->r_addend)
3382
                || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3383
                    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3384
              {
3385
                /* Replace setlo/setlos with a nop.  Preserve the
3386
                   packing bit.  */
3387
                insn &= (unsigned long)0x80000000;
3388
                insn |= (unsigned long)0x00880000;
3389
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3390
 
3391
                /* Nothing to relocate.  */
3392
                continue;
3393
              }
3394
 
3395
            break;
3396
 
3397
          case R_FRV_TLSOFF_RELAX:
3398
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3399
 
3400
            /* Is this an ld instruction?  */
3401
            if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3402
              {
3403
                info->callbacks->einfo
3404
                  (_("%H: R_FRV_TLSOFF_RELAX"
3405
                     " not applied to an ld instruction\n"),
3406
                   input_bfd, input_section, rel->r_offset);
3407
                return FALSE;
3408
              }
3409
 
3410
            if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3411
                                              relocation + rel->r_addend))
3412
              {
3413
                /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3414
                   with setlos #tlsmofflo(symbol+offset), grC.
3415
                   Preserve the packing bit.  */
3416
                insn &= (unsigned long)0xfe000000;
3417
                insn |= (unsigned long)0x00fc0000;
3418
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3419
 
3420
                r_type = R_FRV_TLSMOFFLO;
3421
                howto  = elf32_frv_howto_table + r_type;
3422
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3423
              }
3424
 
3425
            else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3426
                     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3427
              {
3428
                /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3429
                   with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3430
                   Preserve the packing bit.  */
3431
                insn = (insn & (unsigned long)0xfe03f000)
3432
                  | (unsigned long)0x00c80000;;
3433
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3434
 
3435
                r_type = R_FRV_GOTTLSOFF12;
3436
                howto  = elf32_frv_howto_table + r_type;
3437
                rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3438
              }
3439
 
3440
            break;
3441
 
3442
          case R_FRV_TLSMOFFHI:
3443
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3444
 
3445
            /* Is this a sethi instruction?  */
3446
            if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3447
              {
3448
                info->callbacks->einfo
3449
                  (_("%H: R_FRV_TLSMOFFHI"
3450
                     " not applied to a sethi instruction\n"),
3451
                   input_bfd, input_section, rel->r_offset);
3452
                return FALSE;
3453
              }
3454
 
3455
            if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3456
                                               info))
3457
              {
3458
                /* Replace sethi with a nop.  Preserve the packing bit.  */
3459
                insn &= (unsigned long)0x80000000;
3460
                insn |= (unsigned long)0x00880000;
3461
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3462
 
3463
                /* Nothing to relocate.  */
3464
                continue;
3465
              }
3466
 
3467
            break;
3468
 
3469
          case R_FRV_TLSMOFFLO:
3470
            insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3471
 
3472
            /* Is this a setlo or setlos instruction?  */
3473
            if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3474
              {
3475
                info->callbacks->einfo
3476
                  (_("R_FRV_TLSMOFFLO"
3477
                     " not applied to a setlo or setlos instruction\n"),
3478
                   input_bfd, input_section, rel->r_offset);
3479
                return FALSE;
3480
              }
3481
 
3482
            if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3483
                                               info))
3484
              /* If the corresponding sethi (if it exists) decayed
3485
                 to a nop, make sure this becomes (or already is) a
3486
                 setlos, not setlo.  */
3487
              {
3488
                insn |= (unsigned long)0x00080000;
3489
                bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3490
              }
3491
 
3492
            break;
3493
 
3494
            /*
3495
              There's nothing to relax in these:
3496
                R_FRV_TLSDESC_VALUE
3497
                R_FRV_TLSOFF
3498
                R_FRV_TLSMOFF12
3499
                R_FRV_TLSMOFFHI
3500
                R_FRV_TLSMOFFLO
3501
                R_FRV_TLSMOFF
3502
            */
3503
 
3504
          default:
3505
            break;
3506
          }
3507
 
3508
      switch (r_type)
3509
        {
3510
        case R_FRV_LABEL24:
3511
          check_segment[0] = isec_segment;
3512
          if (! IS_FDPIC (output_bfd))
3513
            check_segment[1] = isec_segment;
3514
          else if (picrel->plt)
3515
            {
3516
              relocation = frvfdpic_plt_section (info)->output_section->vma
3517
                + frvfdpic_plt_section (info)->output_offset
3518
                + picrel->plt_entry;
3519
              check_segment[1] = plt_segment;
3520
            }
3521
          /* We don't want to warn on calls to undefined weak symbols,
3522
             as calls to them must be protected by non-NULL tests
3523
             anyway, and unprotected calls would invoke undefined
3524
             behavior.  */
3525
          else if (picrel->symndx == -1
3526
                   && picrel->d.h->root.type == bfd_link_hash_undefweak)
3527
            check_segment[1] = check_segment[0];
3528
          else
3529
            check_segment[1] = sec
3530
              ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3531
              : (unsigned)-1;
3532
          break;
3533
 
3534
        case R_FRV_GOT12:
3535
        case R_FRV_GOTHI:
3536
        case R_FRV_GOTLO:
3537
          relocation = picrel->got_entry;
3538
          check_segment[0] = check_segment[1] = got_segment;
3539
          break;
3540
 
3541
        case R_FRV_FUNCDESC_GOT12:
3542
        case R_FRV_FUNCDESC_GOTHI:
3543
        case R_FRV_FUNCDESC_GOTLO:
3544
          relocation = picrel->fdgot_entry;
3545
          check_segment[0] = check_segment[1] = got_segment;
3546
          break;
3547
 
3548
        case R_FRV_GOTOFFHI:
3549
        case R_FRV_GOTOFF12:
3550
        case R_FRV_GOTOFFLO:
3551
          relocation -= frvfdpic_got_section (info)->output_section->vma
3552
            + frvfdpic_got_section (info)->output_offset
3553
            + frvfdpic_got_initial_offset (info);
3554
          check_segment[0] = got_segment;
3555
          check_segment[1] = sec
3556
            ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3557
            : (unsigned)-1;
3558
          break;
3559
 
3560
        case R_FRV_FUNCDESC_GOTOFF12:
3561
        case R_FRV_FUNCDESC_GOTOFFHI:
3562
        case R_FRV_FUNCDESC_GOTOFFLO:
3563
          relocation = picrel->fd_entry;
3564
          check_segment[0] = check_segment[1] = got_segment;
3565
          break;
3566
 
3567
        case R_FRV_FUNCDESC:
3568
          {
3569
            int dynindx;
3570
            bfd_vma addend = rel->r_addend;
3571
 
3572
            if (! (h && h->root.type == bfd_link_hash_undefweak
3573
                   && FRVFDPIC_SYM_LOCAL (info, h)))
3574
              {
3575
                /* If the symbol is dynamic and there may be dynamic
3576
                   symbol resolution because we are or are linked with a
3577
                   shared library, emit a FUNCDESC relocation such that
3578
                   the dynamic linker will allocate the function
3579
                   descriptor.  If the symbol needs a non-local function
3580
                   descriptor but binds locally (e.g., its visibility is
3581
                   protected, emit a dynamic relocation decayed to
3582
                   section+offset.  */
3583
                if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3584
                    && FRVFDPIC_SYM_LOCAL (info, h)
3585
                    && !(info->executable && !info->pie))
3586
                  {
3587
                    dynindx = elf_section_data (h->root.u.def.section
3588
                                                ->output_section)->dynindx;
3589
                    addend += h->root.u.def.section->output_offset
3590
                      + h->root.u.def.value;
3591
                  }
3592
                else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3593
                  {
3594
                    if (addend)
3595
                      {
3596
                        info->callbacks->einfo
3597
                          (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3598
                             " with nonzero addend\n"),
3599
                           input_bfd, input_section, rel->r_offset);
3600
                        return FALSE;
3601
                      }
3602
                    dynindx = h->dynindx;
3603
                  }
3604
                else
3605
                  {
3606
                    /* Otherwise, we know we have a private function
3607
                       descriptor, so reference it directly.  */
3608
                    BFD_ASSERT (picrel->privfd);
3609
                    r_type = R_FRV_32;
3610
                    dynindx = elf_section_data (frvfdpic_got_section (info)
3611
                                                ->output_section)->dynindx;
3612
                    addend = frvfdpic_got_section (info)->output_offset
3613
                      + frvfdpic_got_initial_offset (info)
3614
                      + picrel->fd_entry;
3615
                  }
3616
 
3617
                /* If there is room for dynamic symbol resolution, emit
3618
                   the dynamic relocation.  However, if we're linking an
3619
                   executable at a fixed location, we won't have emitted a
3620
                   dynamic symbol entry for the got section, so idx will
3621
                   be zero, which means we can and should compute the
3622
                   address of the private descriptor ourselves.  */
3623
                if (info->executable && !info->pie
3624
                    && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3625
                  {
3626
                    addend += frvfdpic_got_section (info)->output_section->vma;
3627
                    if ((bfd_get_section_flags (output_bfd,
3628
                                                input_section->output_section)
3629
                         & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3630
                      {
3631
                        bfd_vma offset;
3632
 
3633
                        if (_frvfdpic_osec_readonly_p (output_bfd,
3634
                                                       input_section
3635
                                                       ->output_section))
3636
                          {
3637
                            info->callbacks->einfo
3638
                              (_("%H: cannot emit fixups"
3639
                                 " in read-only section\n"),
3640
                               input_bfd, input_section, rel->r_offset);
3641
                            return FALSE;
3642
                          }
3643
 
3644
                        offset = _bfd_elf_section_offset
3645
                          (output_bfd, info,
3646
                           input_section, rel->r_offset);
3647
 
3648
                        if (offset != (bfd_vma)-1)
3649
                          _frvfdpic_add_rofixup (output_bfd,
3650
                                                 frvfdpic_gotfixup_section
3651
                                                 (info),
3652
                                                 offset + input_section
3653
                                                 ->output_section->vma
3654
                                                 + input_section->output_offset,
3655
                                                 picrel);
3656
                      }
3657
                  }
3658
                else if ((bfd_get_section_flags (output_bfd,
3659
                                                 input_section->output_section)
3660
                          & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3661
                  {
3662
                    bfd_vma offset;
3663
 
3664
                    if (_frvfdpic_osec_readonly_p (output_bfd,
3665
                                                   input_section
3666
                                                   ->output_section))
3667
                      {
3668
                        info->callbacks->einfo
3669
                          (_("%H: cannot emit dynamic relocations"
3670
                             " in read-only section\n"),
3671
                           input_bfd, input_section, rel->r_offset);
3672
                        return FALSE;
3673
                      }
3674
 
3675
                    offset = _bfd_elf_section_offset
3676
                      (output_bfd, info,
3677
                       input_section, rel->r_offset);
3678
 
3679
                    if (offset != (bfd_vma)-1)
3680
                      _frvfdpic_add_dyn_reloc (output_bfd,
3681
                                               frvfdpic_gotrel_section (info),
3682
                                               offset + input_section
3683
                                               ->output_section->vma
3684
                                               + input_section->output_offset,
3685
                                               r_type, dynindx, addend, picrel);
3686
                  }
3687
                else
3688
                  addend += frvfdpic_got_section (info)->output_section->vma;
3689
              }
3690
 
3691
            /* We want the addend in-place because dynamic
3692
               relocations are REL.  Setting relocation to it should
3693
               arrange for it to be installed.  */
3694
            relocation = addend - rel->r_addend;
3695
          }
3696
          check_segment[0] = check_segment[1] = got_segment;
3697
          break;
3698
 
3699
        case R_FRV_32:
3700
          if (! IS_FDPIC (output_bfd))
3701
            {
3702
              check_segment[0] = check_segment[1] = -1;
3703
              break;
3704
            }
3705
          /* Fall through.  */
3706
        case R_FRV_FUNCDESC_VALUE:
3707
          {
3708
            int dynindx;
3709
            bfd_vma addend = rel->r_addend;
3710
 
3711
            /* If the symbol is dynamic but binds locally, use
3712
               section+offset.  */
3713
            if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3714
              {
3715
                if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3716
                  {
3717
                    info->callbacks->einfo
3718
                      (_("%H: R_FRV_FUNCDESC_VALUE"
3719
                         " references dynamic symbol with nonzero addend\n"),
3720
                       input_bfd, input_section, rel->r_offset);
3721
                    return FALSE;
3722
                  }
3723
                dynindx = h->dynindx;
3724
              }
3725
            else
3726
              {
3727
                if (h)
3728
                  addend += h->root.u.def.value;
3729
                else
3730
                  addend += sym->st_value;
3731
                if (osec)
3732
                  addend += osec->output_offset;
3733
                if (osec && osec->output_section
3734
                    && ! bfd_is_abs_section (osec->output_section)
3735
                    && ! bfd_is_und_section (osec->output_section))
3736
                  dynindx = elf_section_data (osec->output_section)->dynindx;
3737
                else
3738
                  dynindx = 0;
3739
              }
3740
 
3741
            /* If we're linking an executable at a fixed address, we
3742
               can omit the dynamic relocation as long as the symbol
3743
               is defined in the current link unit (which is implied
3744
               by its output section not being NULL).  */
3745
            if (info->executable && !info->pie
3746
                && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3747
              {
3748
                if (osec)
3749
                  addend += osec->output_section->vma;
3750
                if (IS_FDPIC (input_bfd)
3751
                    && (bfd_get_section_flags (output_bfd,
3752
                                               input_section->output_section)
3753
                        & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3754
                  {
3755
                    if (_frvfdpic_osec_readonly_p (output_bfd,
3756
                                                   input_section
3757
                                                   ->output_section))
3758
                      {
3759
                        info->callbacks->einfo
3760
                          (_("%H: cannot emit fixups in read-only section\n"),
3761
                           input_bfd, input_section, rel->r_offset);
3762
                        return FALSE;
3763
                      }
3764
                    if (!h || h->root.type != bfd_link_hash_undefweak)
3765
                      {
3766
                        bfd_vma offset = _bfd_elf_section_offset
3767
                          (output_bfd, info,
3768
                           input_section, rel->r_offset);
3769
 
3770
                        if (offset != (bfd_vma)-1)
3771
                          {
3772
                            _frvfdpic_add_rofixup (output_bfd,
3773
                                                   frvfdpic_gotfixup_section
3774
                                                   (info),
3775
                                                   offset + input_section
3776
                                                   ->output_section->vma
3777
                                                   + input_section->output_offset,
3778
                                                   picrel);
3779
                            if (r_type == R_FRV_FUNCDESC_VALUE)
3780
                              _frvfdpic_add_rofixup
3781
                                (output_bfd,
3782
                                 frvfdpic_gotfixup_section (info),
3783
                                 offset
3784
                                 + input_section->output_section->vma
3785
                                 + input_section->output_offset + 4, picrel);
3786
                          }
3787
                      }
3788
                  }
3789
              }
3790
            else
3791
              {
3792
                if ((bfd_get_section_flags (output_bfd,
3793
                                            input_section->output_section)
3794
                     & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3795
                  {
3796
                    bfd_vma offset;
3797
 
3798
                    if (_frvfdpic_osec_readonly_p (output_bfd,
3799
                                                   input_section
3800
                                                   ->output_section))
3801
                      {
3802
                        info->callbacks->einfo
3803
                          (_("%H: cannot emit dynamic relocations"
3804
                             " in read-only section\n"),
3805
                           input_bfd, input_section, rel->r_offset);
3806
                        return FALSE;
3807
                      }
3808
 
3809
                    offset = _bfd_elf_section_offset
3810
                      (output_bfd, info,
3811
                       input_section, rel->r_offset);
3812
 
3813
                    if (offset != (bfd_vma)-1)
3814
                      _frvfdpic_add_dyn_reloc (output_bfd,
3815
                                               frvfdpic_gotrel_section (info),
3816
                                               offset + input_section
3817
                                               ->output_section->vma
3818
                                               + input_section->output_offset,
3819
                                               r_type, dynindx, addend, picrel);
3820
                  }
3821
                else if (osec)
3822
                  addend += osec->output_section->vma;
3823
                /* We want the addend in-place because dynamic
3824
                   relocations are REL.  Setting relocation to it
3825
                   should arrange for it to be installed.  */
3826
                relocation = addend - rel->r_addend;
3827
              }
3828
 
3829
            if (r_type == R_FRV_FUNCDESC_VALUE)
3830
              {
3831
                /* If we've omitted the dynamic relocation, just emit
3832
                   the fixed addresses of the symbol and of the local
3833
                   GOT base offset.  */
3834
                if (info->executable && !info->pie
3835
                    && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3836
                  bfd_put_32 (output_bfd,
3837
                              frvfdpic_got_section (info)->output_section->vma
3838
                              + frvfdpic_got_section (info)->output_offset
3839
                              + frvfdpic_got_initial_offset (info),
3840
                              contents + rel->r_offset + 4);
3841
                else
3842
                  /* A function descriptor used for lazy or local
3843
                     resolving is initialized such that its high word
3844
                     contains the output section index in which the
3845
                     PLT entries are located, and the low word
3846
                     contains the offset of the lazy PLT entry entry
3847
                     point into that section.  */
3848
                  bfd_put_32 (output_bfd,
3849
                              h && ! FRVFDPIC_SYM_LOCAL (info, h)
3850
                              ? 0
3851
                              : _frvfdpic_osec_to_segment (output_bfd,
3852
                                                           sec
3853
                                                           ->output_section),
3854
                              contents + rel->r_offset + 4);
3855
              }
3856
          }
3857
          check_segment[0] = check_segment[1] = got_segment;
3858
          break;
3859
 
3860
        case R_FRV_GPREL12:
3861
        case R_FRV_GPRELU12:
3862
        case R_FRV_GPREL32:
3863
        case R_FRV_GPRELHI:
3864
        case R_FRV_GPRELLO:
3865
          check_segment[0] = gprel_segment;
3866
          check_segment[1] = sec
3867
            ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3868
            : (unsigned)-1;
3869
          break;
3870
 
3871
        case R_FRV_GETTLSOFF:
3872
          relocation = frvfdpic_plt_section (info)->output_section->vma
3873
            + frvfdpic_plt_section (info)->output_offset
3874
            + picrel->tlsplt_entry;
3875
          BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3876
                      && picrel->tlsdesc_entry);
3877
          check_segment[0] = isec_segment;
3878
          check_segment[1] = plt_segment;
3879
          break;
3880
 
3881
        case R_FRV_GOTTLSDESC12:
3882
        case R_FRV_GOTTLSDESCHI:
3883
        case R_FRV_GOTTLSDESCLO:
3884
          BFD_ASSERT (picrel->tlsdesc_entry);
3885
          relocation = picrel->tlsdesc_entry;
3886
          check_segment[0] = tls_segment;
3887
          check_segment[1] = sec
3888
            && ! bfd_is_abs_section (sec)
3889
            && ! bfd_is_und_section (sec)
3890
            ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3891
            : tls_segment;
3892
          break;
3893
 
3894
        case R_FRV_TLSMOFF12:
3895
        case R_FRV_TLSMOFFHI:
3896
        case R_FRV_TLSMOFFLO:
3897
        case R_FRV_TLSMOFF:
3898
          check_segment[0] = tls_segment;
3899
          if (! sec)
3900
            check_segment[1] = -1;
3901
          else if (bfd_is_abs_section (sec)
3902
                   || bfd_is_und_section (sec))
3903
            {
3904
              relocation = 0;
3905
              check_segment[1] = tls_segment;
3906
            }
3907
          else if (sec->output_section)
3908
            {
3909
              relocation -= tls_biased_base (info);
3910
              check_segment[1] =
3911
                _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3912
            }
3913
          else
3914
            check_segment[1] = -1;
3915
          break;
3916
 
3917
        case R_FRV_GOTTLSOFF12:
3918
        case R_FRV_GOTTLSOFFHI:
3919
        case R_FRV_GOTTLSOFFLO:
3920
          BFD_ASSERT (picrel->tlsoff_entry);
3921
          relocation = picrel->tlsoff_entry;
3922
          check_segment[0] = tls_segment;
3923
          check_segment[1] = sec
3924
            && ! bfd_is_abs_section (sec)
3925
            && ! bfd_is_und_section (sec)
3926
            ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3927
            : tls_segment;
3928
          break;
3929
 
3930
        case R_FRV_TLSDESC_VALUE:
3931
        case R_FRV_TLSOFF:
3932
          /* These shouldn't be present in input object files.  */
3933
          check_segment[0] = check_segment[1] = isec_segment;
3934
          break;
3935
 
3936
        case R_FRV_TLSDESC_RELAX:
3937
        case R_FRV_GETTLSOFF_RELAX:
3938
        case R_FRV_TLSOFF_RELAX:
3939
          /* These are just annotations for relaxation, nothing to do
3940
             here.  */
3941
          continue;
3942
 
3943
        default:
3944
          check_segment[0] = isec_segment;
3945
          check_segment[1] = sec
3946
            ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3947
            : (unsigned)-1;
3948
          break;
3949
        }
3950
 
3951
      if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3952
        {
3953
          /* If you take this out, remove the #error from fdpic-static-6.d
3954
             in the ld testsuite.  */
3955
          /* This helps catch problems in GCC while we can't do more
3956
             than static linking.  The idea is to test whether the
3957
             input file basename is crt0.o only once.  */
3958
          if (silence_segment_error == 1)
3959
            silence_segment_error =
3960
              (strlen (input_bfd->filename) == 6
3961
               && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3962
              || (strlen (input_bfd->filename) > 6
3963
                  && filename_cmp (input_bfd->filename
3964
                                   + strlen (input_bfd->filename) - 7,
3965
                             "/crt0.o") == 0)
3966
              ? -1 : 0;
3967
          if (!silence_segment_error
3968
              /* We don't want duplicate errors for undefined
3969
                 symbols.  */
3970
              && !(picrel && picrel->symndx == -1
3971
                   && picrel->d.h->root.type == bfd_link_hash_undefined))
3972
            {
3973
              info->callbacks->einfo
3974
                (_("%H: reloc against `%s' references a different segment\n"),
3975
                 input_bfd, input_section, rel->r_offset, name);
3976
            }
3977
          if (!silence_segment_error && (info->shared || info->pie))
3978
            return FALSE;
3979
          elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3980
        }
3981
 
3982
      switch (r_type)
3983
        {
3984
        case R_FRV_GOTOFFHI:
3985
        case R_FRV_TLSMOFFHI:
3986
          /* We need the addend to be applied before we shift the
3987
             value right.  */
3988
          relocation += rel->r_addend;
3989
          /* Fall through.  */
3990
        case R_FRV_GOTHI:
3991
        case R_FRV_FUNCDESC_GOTHI:
3992
        case R_FRV_FUNCDESC_GOTOFFHI:
3993
        case R_FRV_GOTTLSOFFHI:
3994
        case R_FRV_GOTTLSDESCHI:
3995
          relocation >>= 16;
3996
          /* Fall through.  */
3997
 
3998
        case R_FRV_GOTLO:
3999
        case R_FRV_FUNCDESC_GOTLO:
4000
        case R_FRV_GOTOFFLO:
4001
        case R_FRV_FUNCDESC_GOTOFFLO:
4002
        case R_FRV_GOTTLSOFFLO:
4003
        case R_FRV_GOTTLSDESCLO:
4004
        case R_FRV_TLSMOFFLO:
4005
          relocation &= 0xffff;
4006
          break;
4007
 
4008
        default:
4009
          break;
4010
        }
4011
 
4012
      switch (r_type)
4013
        {
4014
        case R_FRV_LABEL24:
4015
          if (! IS_FDPIC (output_bfd) || ! picrel->plt)
4016
            break;
4017
          /* Fall through.  */
4018
 
4019
          /* When referencing a GOT entry, a function descriptor or a
4020
             PLT, we don't want the addend to apply to the reference,
4021
             but rather to the referenced symbol.  The actual entry
4022
             will have already been created taking the addend into
4023
             account, so cancel it out here.  */
4024
        case R_FRV_GOT12:
4025
        case R_FRV_GOTHI:
4026
        case R_FRV_GOTLO:
4027
        case R_FRV_FUNCDESC_GOT12:
4028
        case R_FRV_FUNCDESC_GOTHI:
4029
        case R_FRV_FUNCDESC_GOTLO:
4030
        case R_FRV_FUNCDESC_GOTOFF12:
4031
        case R_FRV_FUNCDESC_GOTOFFHI:
4032
        case R_FRV_FUNCDESC_GOTOFFLO:
4033
        case R_FRV_GETTLSOFF:
4034
        case R_FRV_GOTTLSDESC12:
4035
        case R_FRV_GOTTLSDESCHI:
4036
        case R_FRV_GOTTLSDESCLO:
4037
        case R_FRV_GOTTLSOFF12:
4038
        case R_FRV_GOTTLSOFFHI:
4039
        case R_FRV_GOTTLSOFFLO:
4040
          /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
4041
             here, since we do want to apply the addend to the others.
4042
             Note that we've applied the addend to GOTOFFHI before we
4043
             shifted it right.  */
4044
        case R_FRV_GOTOFFHI:
4045
        case R_FRV_TLSMOFFHI:
4046
          relocation -= rel->r_addend;
4047
          break;
4048
 
4049
        default:
4050
          break;
4051
        }
4052
 
4053
     if (r_type == R_FRV_HI16)
4054
       r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
4055
 
4056
     else if (r_type == R_FRV_LO16)
4057
       r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4058
 
4059
     else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4060
       r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4061
                                       contents, relocation);
4062
 
4063
     else if (r_type == R_FRV_GPREL12)
4064
       r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4065
                                       contents, relocation);
4066
 
4067
     else if (r_type == R_FRV_GPRELU12)
4068
       r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4069
                                        contents, relocation);
4070
 
4071
     else if (r_type == R_FRV_GPRELLO)
4072
       r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4073
                                       contents, relocation);
4074
 
4075
     else if (r_type == R_FRV_GPRELHI)
4076
       r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4077
                                       contents, relocation);
4078
 
4079
     else if (r_type == R_FRV_TLSOFF
4080
              || r_type == R_FRV_TLSDESC_VALUE)
4081
       r = bfd_reloc_notsupported;
4082
 
4083
     else
4084
       r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4085
                                    rel, relocation);
4086
 
4087
      if (r != bfd_reloc_ok)
4088
        {
4089
          const char * msg = (const char *) NULL;
4090
 
4091
          switch (r)
4092
            {
4093
            case bfd_reloc_overflow:
4094
              r = info->callbacks->reloc_overflow
4095
                (info, (h ? &h->root : NULL), name, howto->name,
4096
                 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4097
              break;
4098
 
4099
            case bfd_reloc_undefined:
4100
              r = info->callbacks->undefined_symbol
4101
                (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4102
              break;
4103
 
4104
            case bfd_reloc_outofrange:
4105
              msg = _("internal error: out of range error");
4106
              break;
4107
 
4108
            case bfd_reloc_notsupported:
4109
              msg = _("internal error: unsupported relocation error");
4110
              break;
4111
 
4112
            case bfd_reloc_dangerous:
4113
              msg = _("internal error: dangerous relocation");
4114
              break;
4115
 
4116
            default:
4117
              msg = _("internal error: unknown error");
4118
              break;
4119
            }
4120
 
4121
          if (msg)
4122
            {
4123
              info->callbacks->einfo
4124
                (_("%H: reloc against `%s': %s\n"),
4125
                 input_bfd, input_section, rel->r_offset, name, msg);
4126
              return FALSE;
4127
            }
4128
 
4129
          if (! r)
4130
            return FALSE;
4131
        }
4132
    }
4133
 
4134
  return TRUE;
4135
}
4136
 
4137
/* Return the section that should be marked against GC for a given
4138
   relocation.  */
4139
 
4140
static asection *
4141
elf32_frv_gc_mark_hook (asection *sec,
4142
                        struct bfd_link_info *info,
4143
                        Elf_Internal_Rela *rel,
4144
                        struct elf_link_hash_entry *h,
4145
                        Elf_Internal_Sym *sym)
4146
{
4147
  if (h != NULL)
4148
    switch (ELF32_R_TYPE (rel->r_info))
4149
      {
4150
      case R_FRV_GNU_VTINHERIT:
4151
      case R_FRV_GNU_VTENTRY:
4152
        return NULL;
4153
      }
4154
 
4155
  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4156
}
4157
 
4158
/* Hook called by the linker routine which adds symbols from an object
4159
   file.  We use it to put .comm items in .scomm, and not .comm.  */
4160
 
4161
static bfd_boolean
4162
elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
4163
     bfd *abfd;
4164
     struct bfd_link_info *info;
4165
     Elf_Internal_Sym *sym;
4166
     const char **namep ATTRIBUTE_UNUSED;
4167
     flagword *flagsp ATTRIBUTE_UNUSED;
4168
     asection **secp;
4169
     bfd_vma *valp;
4170
{
4171
  if (sym->st_shndx == SHN_COMMON
4172
      && !info->relocatable
4173
      && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4174
    {
4175
      /* Common symbols less than or equal to -G nn bytes are
4176
         automatically put into .sbss.  */
4177
 
4178
      asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4179
 
4180
      if (scomm == NULL)
4181
        {
4182
          scomm = bfd_make_section_with_flags (abfd, ".scommon",
4183
                                               (SEC_ALLOC
4184
                                                | SEC_IS_COMMON
4185
                                                | SEC_LINKER_CREATED));
4186
          if (scomm == NULL)
4187
            return FALSE;
4188
        }
4189
 
4190
      *secp = scomm;
4191
      *valp = sym->st_size;
4192
    }
4193
 
4194
  return TRUE;
4195
}
4196
 
4197
/* We need dynamic symbols for every section, since segments can
4198
   relocate independently.  */
4199
static bfd_boolean
4200
_frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4201
                                    struct bfd_link_info *info
4202
                                    ATTRIBUTE_UNUSED,
4203
                                    asection *p ATTRIBUTE_UNUSED)
4204
{
4205
  switch (elf_section_data (p)->this_hdr.sh_type)
4206
    {
4207
    case SHT_PROGBITS:
4208
    case SHT_NOBITS:
4209
      /* If sh_type is yet undecided, assume it could be
4210
         SHT_PROGBITS/SHT_NOBITS.  */
4211
    case SHT_NULL:
4212
      return FALSE;
4213
 
4214
      /* There shouldn't be section relative relocations
4215
         against any other section.  */
4216
    default:
4217
      return TRUE;
4218
    }
4219
}
4220
 
4221
/* Create  a .got section, as well as its additional info field.  This
4222
   is almost entirely copied from
4223
   elflink.c:_bfd_elf_create_got_section().  */
4224
 
4225
static bfd_boolean
4226
_frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4227
{
4228
  flagword flags, pltflags;
4229
  asection *s;
4230
  struct elf_link_hash_entry *h;
4231
  struct bfd_link_hash_entry *bh;
4232
  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4233
  int ptralign;
4234
  int offset;
4235
 
4236
  /* This function may be called more than once.  */
4237
  s = bfd_get_section_by_name (abfd, ".got");
4238
  if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
4239
    return TRUE;
4240
 
4241
  /* Machine specific: although pointers are 32-bits wide, we want the
4242
     GOT to be aligned to a 64-bit boundary, such that function
4243
     descriptors in it can be accessed with 64-bit loads and
4244
     stores.  */
4245
  ptralign = 3;
4246
 
4247
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4248
           | SEC_LINKER_CREATED);
4249
  pltflags = flags;
4250
 
4251
  s = bfd_make_section_with_flags (abfd, ".got", flags);
4252
  if (s == NULL
4253
      || !bfd_set_section_alignment (abfd, s, ptralign))
4254
    return FALSE;
4255
 
4256
  if (bed->want_got_plt)
4257
    {
4258
      s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
4259
      if (s == NULL
4260
          || !bfd_set_section_alignment (abfd, s, ptralign))
4261
        return FALSE;
4262
    }
4263
 
4264
  if (bed->want_got_sym)
4265
    {
4266
      /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4267
         (or .got.plt) section.  We don't do this in the linker script
4268
         because we don't want to define the symbol if we are not creating
4269
         a global offset table.  */
4270
      h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4271
      elf_hash_table (info)->hgot = h;
4272
      if (h == NULL)
4273
        return FALSE;
4274
 
4275
      /* Machine-specific: we want the symbol for executables as
4276
         well.  */
4277
      if (! bfd_elf_link_record_dynamic_symbol (info, h))
4278
        return FALSE;
4279
    }
4280
 
4281
  /* The first bit of the global offset table is the header.  */
4282
  s->size += bed->got_header_size;
4283
 
4284
  /* This is the machine-specific part.  Create and initialize section
4285
     data for the got.  */
4286
  if (IS_FDPIC (abfd))
4287
    {
4288
      frvfdpic_got_section (info) = s;
4289
      frvfdpic_relocs_info (info) = htab_try_create (1,
4290
                                                     frvfdpic_relocs_info_hash,
4291
                                                     frvfdpic_relocs_info_eq,
4292
                                                     (htab_del) NULL);
4293
      if (! frvfdpic_relocs_info (info))
4294
        return FALSE;
4295
 
4296
      s = bfd_make_section_with_flags (abfd, ".rel.got",
4297
                                       (flags | SEC_READONLY));
4298
      if (s == NULL
4299
          || ! bfd_set_section_alignment (abfd, s, 2))
4300
        return FALSE;
4301
 
4302
      frvfdpic_gotrel_section (info) = s;
4303
 
4304
      /* Machine-specific.  */
4305
      s = bfd_make_section_with_flags (abfd, ".rofixup",
4306
                                       (flags | SEC_READONLY));
4307
      if (s == NULL
4308
          || ! bfd_set_section_alignment (abfd, s, 2))
4309
        return FALSE;
4310
 
4311
      frvfdpic_gotfixup_section (info) = s;
4312
      offset = -2048;
4313
      flags = BSF_GLOBAL;
4314
    }
4315
  else
4316
    {
4317
      offset = 2048;
4318
      flags = BSF_GLOBAL | BSF_WEAK;
4319
    }
4320
 
4321
  /* Define _gp in .rofixup, for FDPIC, or .got otherwise.  If it
4322
     turns out that we're linking with a different linker script, the
4323
     linker script will override it.  */
4324
  bh = NULL;
4325
  if (!(_bfd_generic_link_add_one_symbol
4326
        (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4327
         bed->collect, &bh)))
4328
    return FALSE;
4329
  h = (struct elf_link_hash_entry *) bh;
4330
  h->def_regular = 1;
4331
  h->type = STT_OBJECT;
4332
  /* h->other = STV_HIDDEN; */ /* Should we?  */
4333
 
4334
  /* Machine-specific: we want the symbol for executables as well.  */
4335
  if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4336
    return FALSE;
4337
 
4338
  if (!IS_FDPIC (abfd))
4339
    return TRUE;
4340
 
4341
  /* FDPIC supports Thread Local Storage, and this may require a
4342
     procedure linkage table for TLS PLT entries.  */
4343
 
4344
  /* This is mostly copied from
4345
     elflink.c:_bfd_elf_create_dynamic_sections().  */
4346
 
4347
  flags = pltflags;
4348
  pltflags |= SEC_CODE;
4349
  if (bed->plt_not_loaded)
4350
    pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4351
  if (bed->plt_readonly)
4352
    pltflags |= SEC_READONLY;
4353
 
4354
  s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
4355
  if (s == NULL
4356
      || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4357
    return FALSE;
4358
  /* FRV-specific: remember it.  */
4359
  frvfdpic_plt_section (info) = s;
4360
 
4361
  /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4362
     .plt section.  */
4363
  if (bed->want_plt_sym)
4364
    {
4365
      h = _bfd_elf_define_linkage_sym (abfd, info, s,
4366
                                       "_PROCEDURE_LINKAGE_TABLE_");
4367
      elf_hash_table (info)->hplt = h;
4368
      if (h == NULL)
4369
        return FALSE;
4370
    }
4371
 
4372
  /* FRV-specific: we want rel relocations for the plt.  */
4373
  s = bfd_make_section_with_flags (abfd, ".rel.plt",
4374
                                   flags | SEC_READONLY);
4375
  if (s == NULL
4376
      || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4377
    return FALSE;
4378
  /* FRV-specific: remember it.  */
4379
  frvfdpic_pltrel_section (info) = s;
4380
 
4381
  return TRUE;
4382
}
4383
 
4384
/* Make sure the got and plt sections exist, and that our pointers in
4385
   the link hash table point to them.  */
4386
 
4387
static bfd_boolean
4388
elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4389
{
4390
  /* This is mostly copied from
4391
     elflink.c:_bfd_elf_create_dynamic_sections().  */
4392
  flagword flags;
4393
  asection *s;
4394
  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4395
 
4396
  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4397
           | SEC_LINKER_CREATED);
4398
 
4399
  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4400
     .rel[a].bss sections.  */
4401
 
4402
  /* FRV-specific: we want to create the GOT and the PLT in the FRV
4403
     way.  */
4404
  if (! _frv_create_got_section (abfd, info))
4405
    return FALSE;
4406
 
4407
  /* FRV-specific: make sure we created everything we wanted.  */
4408
  BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4409
              && frvfdpic_gotfixup_section (info)
4410
              && frvfdpic_plt_section (info)
4411
              && frvfdpic_pltrel_section (info));
4412
 
4413
  if (bed->want_dynbss)
4414
    {
4415
      /* The .dynbss section is a place to put symbols which are defined
4416
         by dynamic objects, are referenced by regular objects, and are
4417
         not functions.  We must allocate space for them in the process
4418
         image and use a R_*_COPY reloc to tell the dynamic linker to
4419
         initialize them at run time.  The linker script puts the .dynbss
4420
         section into the .bss section of the final image.  */
4421
      s = bfd_make_section_with_flags (abfd, ".dynbss",
4422
                                       SEC_ALLOC | SEC_LINKER_CREATED);
4423
      if (s == NULL)
4424
        return FALSE;
4425
 
4426
      /* The .rel[a].bss section holds copy relocs.  This section is not
4427
     normally needed.  We need to create it here, though, so that the
4428
     linker will map it to an output section.  We can't just create it
4429
     only if we need it, because we will not know whether we need it
4430
     until we have seen all the input files, and the first time the
4431
     main linker code calls BFD after examining all the input files
4432
     (size_dynamic_sections) the input sections have already been
4433
     mapped to the output sections.  If the section turns out not to
4434
     be needed, we can discard it later.  We will never need this
4435
     section when generating a shared object, since they do not use
4436
     copy relocs.  */
4437
      if (! info->shared)
4438
        {
4439
          s = bfd_make_section_with_flags (abfd,
4440
                                           (bed->default_use_rela_p
4441
                                            ? ".rela.bss" : ".rel.bss"),
4442
                                           flags | SEC_READONLY);
4443
          if (s == NULL
4444
              || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4445
            return FALSE;
4446
        }
4447
    }
4448
 
4449
  return TRUE;
4450
}
4451
 
4452
/* Compute the total GOT and PLT size required by each symbol in each
4453
   range.  Symbols may require up to 4 words in the GOT: an entry
4454
   pointing to the symbol, an entry pointing to its function
4455
   descriptor, and a private function descriptors taking two
4456
   words.  */
4457
 
4458
static void
4459
_frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4460
                                struct _frvfdpic_dynamic_got_info *dinfo)
4461
{
4462
  /* Allocate space for a GOT entry pointing to the symbol.  */
4463
  if (entry->got12)
4464
    dinfo->got12 += 4;
4465
  else if (entry->gotlos)
4466
    dinfo->gotlos += 4;
4467
  else if (entry->gothilo)
4468
    dinfo->gothilo += 4;
4469
  else
4470
    entry->relocs32--;
4471
  entry->relocs32++;
4472
 
4473
  /* Allocate space for a GOT entry pointing to the function
4474
     descriptor.  */
4475
  if (entry->fdgot12)
4476
    dinfo->got12 += 4;
4477
  else if (entry->fdgotlos)
4478
    dinfo->gotlos += 4;
4479
  else if (entry->fdgothilo)
4480
    dinfo->gothilo += 4;
4481
  else
4482
    entry->relocsfd--;
4483
  entry->relocsfd++;
4484
 
4485
  /* Decide whether we need a PLT entry, a function descriptor in the
4486
     GOT, and a lazy PLT entry for this symbol.  */
4487
  entry->plt = entry->call
4488
    && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4489
    && elf_hash_table (dinfo->info)->dynamic_sections_created;
4490
  entry->privfd = entry->plt
4491
    || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4492
    || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4493
        && (entry->symndx != -1
4494
            || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4495
  entry->lazyplt = entry->privfd
4496
    && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4497
    && ! (dinfo->info->flags & DF_BIND_NOW)
4498
    && elf_hash_table (dinfo->info)->dynamic_sections_created;
4499
 
4500
  /* Allocate space for a function descriptor.  */
4501
  if (entry->fdgoff12)
4502
    dinfo->fd12 += 8;
4503
  else if (entry->fdgofflos)
4504
    dinfo->fdlos += 8;
4505
  else if (entry->privfd && entry->plt)
4506
    dinfo->fdplt += 8;
4507
  else if (entry->privfd)
4508
    dinfo->fdhilo += 8;
4509
  else
4510
    entry->relocsfdv--;
4511
  entry->relocsfdv++;
4512
 
4513
  if (entry->lazyplt)
4514
    dinfo->lzplt += 8;
4515
}
4516
 
4517
/* Compute the total GOT size required by each TLS symbol in each
4518
   range.  Symbols may require up to 5 words in the GOT: an entry
4519
   holding the TLS offset for the symbol, and an entry with a full TLS
4520
   descriptor taking 4 words.  */
4521
 
4522
static void
4523
_frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4524
                             struct _frvfdpic_dynamic_got_info *dinfo,
4525
                             bfd_boolean subtract)
4526
{
4527
  const int l = subtract ? -1 : 1;
4528
 
4529
  /* Allocate space for a GOT entry with the TLS offset of the
4530
     symbol.  */
4531
  if (entry->tlsoff12)
4532
    dinfo->got12 += 4 * l;
4533
  else if (entry->tlsofflos)
4534
    dinfo->gotlos += 4 * l;
4535
  else if (entry->tlsoffhilo)
4536
    dinfo->gothilo += 4 * l;
4537
  else
4538
    entry->relocstlsoff -= l;
4539
  entry->relocstlsoff += l;
4540
 
4541
  /* If there's any TLSOFF relocation, mark the output file as not
4542
     suitable for dlopening.  This mark will remain even if we relax
4543
     all such relocations, but this is not a problem, since we'll only
4544
     do so for executables, and we definitely don't want anyone
4545
     dlopening executables.  */
4546
  if (entry->relocstlsoff)
4547
    dinfo->info->flags |= DF_STATIC_TLS;
4548
 
4549
  /* Allocate space for a TLS descriptor.  */
4550
  if (entry->tlsdesc12)
4551
    dinfo->tlsd12 += 8 * l;
4552
  else if (entry->tlsdesclos)
4553
    dinfo->tlsdlos += 8 * l;
4554
  else if (entry->tlsplt)
4555
    dinfo->tlsdplt += 8 * l;
4556
  else if (entry->tlsdeschilo)
4557
    dinfo->tlsdhilo += 8 * l;
4558
  else
4559
    entry->relocstlsd -= l;
4560
  entry->relocstlsd += l;
4561
}
4562
 
4563
/* Compute the number of dynamic relocations and fixups that a symbol
4564
   requires, and add (or subtract) from the grand and per-symbol
4565
   totals.  */
4566
 
4567
static void
4568
_frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4569
                               struct _frvfdpic_dynamic_got_info *dinfo,
4570
                               bfd_boolean subtract)
4571
{
4572
  bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4573
 
4574
  if (!dinfo->info->executable || dinfo->info->pie)
4575
    {
4576
      relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4577
        + entry->relocstlsd;
4578
 
4579
      /* In the executable, TLS relocations to symbols that bind
4580
         locally (including those that resolve to global TLS offsets)
4581
         are resolved immediately, without any need for fixups or
4582
         dynamic relocations.  In shared libraries, however, we must
4583
         emit dynamic relocations even for local symbols, because we
4584
         don't know the module id the library is going to get at
4585
         run-time, nor its TLS base offset.  */
4586
      if (!dinfo->info->executable
4587
          || (entry->symndx == -1
4588
              && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4589
        relocs += entry->relocstlsoff;
4590
    }
4591
  else
4592
    {
4593
      if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4594
        {
4595
          if (entry->symndx != -1
4596
              || entry->d.h->root.type != bfd_link_hash_undefweak)
4597
            fixups += entry->relocs32 + 2 * entry->relocsfdv;
4598
          fixups += entry->relocstlsd;
4599
          tlsrets += entry->relocstlsd;
4600
        }
4601
      else
4602
        {
4603
          relocs += entry->relocs32 + entry->relocsfdv
4604
            + entry->relocstlsoff + entry->relocstlsd;
4605
        }
4606
 
4607
      if (entry->symndx != -1
4608
          || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4609
        {
4610
          if (entry->symndx != -1
4611
              || entry->d.h->root.type != bfd_link_hash_undefweak)
4612
            fixups += entry->relocsfd;
4613
        }
4614
      else
4615
        relocs += entry->relocsfd;
4616
    }
4617
 
4618
  if (subtract)
4619
    {
4620
      relocs = - relocs;
4621
      fixups = - fixups;
4622
      tlsrets = - tlsrets;
4623
    }
4624
 
4625
  entry->dynrelocs += relocs;
4626
  entry->fixups += fixups;
4627
  dinfo->relocs += relocs;
4628
  dinfo->fixups += fixups;
4629
  dinfo->tls_ret_refs += tlsrets;
4630
}
4631
 
4632
/* Look for opportunities to relax TLS relocations.  We can assume
4633
   we're linking the main executable or a static-tls library, since
4634
   otherwise we wouldn't have got here.  When relaxing, we have to
4635
   first undo any previous accounting of TLS uses of fixups, dynamic
4636
   relocations, GOT and PLT entries.  */
4637
 
4638
static void
4639
_frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4640
                             struct _frvfdpic_dynamic_got_info *dinfo,
4641
                             bfd_boolean relaxing)
4642
{
4643
  bfd_boolean changed = ! relaxing;
4644
 
4645
  BFD_ASSERT (dinfo->info->executable
4646
              || (dinfo->info->flags & DF_STATIC_TLS));
4647
 
4648
  if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4649
    {
4650
      if (! changed)
4651
        {
4652
          _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4653
          _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4654
          changed = TRUE;
4655
        }
4656
 
4657
      /* When linking an executable, we can always decay GOTTLSDESC to
4658
         TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4659
         When linking a static-tls shared library, using TLSMOFF is
4660
         not an option, but we can still use GOTTLSOFF.  When decaying
4661
         to GOTTLSOFF, we must keep the GOT entry in range.  We know
4662
         it has to fit because we'll be trading the 4 words of hte TLS
4663
         descriptor for a single word in the same range.  */
4664
      if (! dinfo->info->executable
4665
          || (entry->symndx == -1
4666
              && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4667
        {
4668
          entry->tlsoff12 |= entry->tlsdesc12;
4669
          entry->tlsofflos |= entry->tlsdesclos;
4670
          entry->tlsoffhilo |= entry->tlsdeschilo;
4671
        }
4672
 
4673
      entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4674
    }
4675
 
4676
  /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4677
     main executable.  We have to check whether the symbol's TLSOFF is
4678
     in range for a setlos.  For symbols with a hash entry, we can
4679
     determine exactly what to do; for others locals, we don't have
4680
     addresses handy, so we use the size of the TLS section as an
4681
     approximation.  If we get it wrong, we'll retain a GOT entry
4682
     holding the TLS offset (without dynamic relocations or fixups),
4683
     but we'll still optimize away the loads from it.  Since TLS sizes
4684
     are generally very small, it's probably not worth attempting to
4685
     do better than this.  */
4686
  if ((entry->tlsplt
4687
       || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4688
      && dinfo->info->executable && relaxing
4689
      && ((entry->symndx == -1
4690
           && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4691
           /* The above may hold for an undefweak TLS symbol, so make
4692
              sure we don't have this case before accessing def.value
4693
              and def.section.  */
4694
           && (entry->d.h->root.type == bfd_link_hash_undefweak
4695
               || (bfd_vma)(entry->d.h->root.u.def.value
4696
                            + (entry->d.h->root.u.def.section
4697
                               ->output_section->vma)
4698
                            + entry->d.h->root.u.def.section->output_offset
4699
                            + entry->addend
4700
                            - tls_biased_base (dinfo->info)
4701
                            + 32768) < (bfd_vma)65536))
4702
          || (entry->symndx != -1
4703
              && (elf_hash_table (dinfo->info)->tls_sec->size
4704
                  + abs (entry->addend) < 32768 + FRVFDPIC_TLS_BIAS))))
4705
    {
4706
      if (! changed)
4707
        {
4708
          _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4709
          _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4710
          changed = TRUE;
4711
        }
4712
 
4713
      entry->tlsplt =
4714
        entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4715
    }
4716
 
4717
  /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4718
     have a #gottlsoff12 relocation for this entry, or if we can fit
4719
     one more in the 12-bit (and 16-bit) ranges.  */
4720
  if (entry->tlsplt
4721
      && (entry->tlsoff12
4722
          || (relaxing
4723
              && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4724
              && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4725
                  + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4726
                  <= 65536 - 12 - 4))))
4727
    {
4728
      if (! changed)
4729
        {
4730
          _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4731
          _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4732
          changed = TRUE;
4733
        }
4734
 
4735
      entry->tlsoff12 = 1;
4736
      entry->tlsplt = 0;
4737
    }
4738
 
4739
  if (changed)
4740
    {
4741
      _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4742
      _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4743
    }
4744
 
4745
  return;
4746
}
4747
 
4748
/* Compute the total GOT and PLT size required by each symbol in each range. *
4749
   Symbols may require up to 4 words in the GOT: an entry pointing to
4750
   the symbol, an entry pointing to its function descriptor, and a
4751
   private function descriptors taking two words.  */
4752
 
4753
static int
4754
_frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4755
{
4756
  struct frvfdpic_relocs_info *entry = *entryp;
4757
  struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4758
 
4759
  _frvfdpic_count_nontls_entries (entry, dinfo);
4760
 
4761
  if (dinfo->info->executable || (dinfo->info->flags & DF_STATIC_TLS))
4762
    _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4763
  else
4764
    {
4765
      _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4766
      _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4767
    }
4768
 
4769
  return 1;
4770
}
4771
 
4772
/* Determine the positive and negative ranges to be used by each
4773
   offset range in the GOT.  FDCUR and CUR, that must be aligned to a
4774
   double-word boundary, are the minimum (negative) and maximum
4775
   (positive) GOT offsets already used by previous ranges, except for
4776
   an ODD entry that may have been left behind.  GOT and FD indicate
4777
   the size of GOT entries and function descriptors that must be
4778
   placed within the range from -WRAP to WRAP.  If there's room left,
4779
   up to FDPLT bytes should be reserved for additional function
4780
   descriptors.  */
4781
 
4782
inline static bfd_signed_vma
4783
_frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4784
                                  bfd_signed_vma fdcur,
4785
                                  bfd_signed_vma odd,
4786
                                  bfd_signed_vma cur,
4787
                                  bfd_vma got,
4788
                                  bfd_vma fd,
4789
                                  bfd_vma fdplt,
4790
                                  bfd_vma tlsd,
4791
                                  bfd_vma tlsdplt,
4792
                                  bfd_vma wrap)
4793
{
4794
  bfd_signed_vma wrapmin = -wrap;
4795
  const bfd_vma tdescsz = 8;
4796
 
4797
  /* Start at the given initial points.  */
4798
  gad->fdcur = fdcur;
4799
  gad->cur = cur;
4800
 
4801
  /* If we had an incoming odd word and we have any got entries that
4802
     are going to use it, consume it, otherwise leave gad->odd at
4803
     zero.  We might force gad->odd to zero and return the incoming
4804
     odd such that it is used by the next range, but then GOT entries
4805
     might appear to be out of order and we wouldn't be able to
4806
     shorten the GOT by one word if it turns out to end with an
4807
     unpaired GOT entry.  */
4808
  if (odd && got)
4809
    {
4810
      gad->odd = odd;
4811
      got -= 4;
4812
      odd = 0;
4813
    }
4814
  else
4815
    gad->odd = 0;
4816
 
4817
  /* If we're left with an unpaired GOT entry, compute its location
4818
     such that we can return it.  Otherwise, if got doesn't require an
4819
     odd number of words here, either odd was already zero in the
4820
     block above, or it was set to zero because got was non-zero, or
4821
     got was already zero.  In the latter case, we want the value of
4822
     odd to carry over to the return statement, so we don't want to
4823
     reset odd unless the condition below is true.  */
4824
  if (got & 4)
4825
    {
4826
      odd = cur + got;
4827
      got += 4;
4828
    }
4829
 
4830
  /* Compute the tentative boundaries of this range.  */
4831
  gad->max = cur + got;
4832
  gad->min = fdcur - fd;
4833
  gad->fdplt = 0;
4834
 
4835
  /* If function descriptors took too much space, wrap some of them
4836
     around.  */
4837
  if (gad->min < wrapmin)
4838
    {
4839
      gad->max += wrapmin - gad->min;
4840
      gad->tmin = gad->min = wrapmin;
4841
    }
4842
 
4843
  /* If GOT entries took too much space, wrap some of them around.
4844
     This may well cause gad->min to become lower than wrapmin.  This
4845
     will cause a relocation overflow later on, so we don't have to
4846
     report it here . */
4847
  if ((bfd_vma) gad->max > wrap)
4848
    {
4849
      gad->min -= gad->max - wrap;
4850
      gad->max = wrap;
4851
    }
4852
 
4853
  /* Add TLS descriptors.  */
4854
  gad->tmax = gad->max + tlsd;
4855
  gad->tmin = gad->min;
4856
  gad->tlsdplt = 0;
4857
 
4858
  /* If TLS descriptors took too much space, wrap an integral number
4859
     of them around.  */
4860
  if ((bfd_vma) gad->tmax > wrap)
4861
    {
4862
      bfd_vma wrapsize = gad->tmax - wrap;
4863
 
4864
      wrapsize += tdescsz / 2;
4865
      wrapsize &= ~ tdescsz / 2;
4866
 
4867
      gad->tmin -= wrapsize;
4868
      gad->tmax -= wrapsize;
4869
    }
4870
 
4871
  /* If there is space left and we have function descriptors
4872
     referenced in PLT entries that could take advantage of shorter
4873
     offsets, place them now.  */
4874
  if (fdplt && gad->tmin > wrapmin)
4875
    {
4876
      bfd_vma fds;
4877
 
4878
      if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4879
        fds = gad->tmin - wrapmin;
4880
      else
4881
        fds = fdplt;
4882
 
4883
      fdplt -= fds;
4884
      gad->min -= fds;
4885
      gad->tmin -= fds;
4886
      gad->fdplt += fds;
4887
    }
4888
 
4889
  /* If there is more space left, try to place some more function
4890
     descriptors for PLT entries.  */
4891
  if (fdplt && (bfd_vma) gad->tmax < wrap)
4892
    {
4893
      bfd_vma fds;
4894
 
4895
      if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4896
        fds = wrap - gad->tmax;
4897
      else
4898
        fds = fdplt;
4899
 
4900
      fdplt -= fds;
4901
      gad->max += fds;
4902
      gad->tmax += fds;
4903
      gad->fdplt += fds;
4904
    }
4905
 
4906
  /* If there is space left and we have TLS descriptors referenced in
4907
     PLT entries that could take advantage of shorter offsets, place
4908
     them now.  */
4909
  if (tlsdplt && gad->tmin > wrapmin)
4910
    {
4911
      bfd_vma tlsds;
4912
 
4913
      if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4914
        tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4915
      else
4916
        tlsds = tlsdplt;
4917
 
4918
      tlsdplt -= tlsds;
4919
      gad->tmin -= tlsds;
4920
      gad->tlsdplt += tlsds;
4921
    }
4922
 
4923
  /* If there is more space left, try to place some more TLS
4924
     descriptors for PLT entries.  Although we could try to fit an
4925
     additional TLS descriptor with half of it just before before the
4926
     wrap point and another right past the wrap point, this might
4927
     cause us to run out of space for the next region, so don't do
4928
     it.  */
4929
  if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4930
    {
4931
      bfd_vma tlsds;
4932
 
4933
      if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4934
        tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4935
      else
4936
        tlsds = tlsdplt;
4937
 
4938
      tlsdplt -= tlsds;
4939
      gad->tmax += tlsds;
4940
      gad->tlsdplt += tlsds;
4941
    }
4942
 
4943
  /* If odd was initially computed as an offset past the wrap point,
4944
     wrap it around.  */
4945
  if (odd > gad->max)
4946
    odd = gad->min + odd - gad->max;
4947
 
4948
  /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4949
     before returning, so do it here too.  This guarantees that,
4950
     should cur and fdcur meet at the wrap point, they'll both be
4951
     equal to min.  */
4952
  if (gad->cur == gad->max)
4953
    gad->cur = gad->min;
4954
 
4955
  /* Ditto for _frvfdpic_get_tlsdesc_entry().  */
4956
  gad->tcur = gad->max;
4957
  if (gad->tcur == gad->tmax)
4958
    gad->tcur = gad->tmin;
4959
 
4960
  return odd;
4961
}
4962
 
4963
/* Compute the location of the next GOT entry, given the allocation
4964
   data for a range.  */
4965
 
4966
inline static bfd_signed_vma
4967
_frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4968
{
4969
  bfd_signed_vma ret;
4970
 
4971
  if (gad->odd)
4972
    {
4973
      /* If there was an odd word left behind, use it.  */
4974
      ret = gad->odd;
4975
      gad->odd = 0;
4976
    }
4977
  else
4978
    {
4979
      /* Otherwise, use the word pointed to by cur, reserve the next
4980
         as an odd word, and skip to the next pair of words, possibly
4981
         wrapping around.  */
4982
      ret = gad->cur;
4983
      gad->odd = gad->cur + 4;
4984
      gad->cur += 8;
4985
      if (gad->cur == gad->max)
4986
        gad->cur = gad->min;
4987
    }
4988
 
4989
  return ret;
4990
}
4991
 
4992
/* Compute the location of the next function descriptor entry in the
4993
   GOT, given the allocation data for a range.  */
4994
 
4995
inline static bfd_signed_vma
4996
_frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4997
{
4998
  /* If we're at the bottom, wrap around, and only then allocate the
4999
     next pair of words.  */
5000
  if (gad->fdcur == gad->min)
5001
    gad->fdcur = gad->max;
5002
  return gad->fdcur -= 8;
5003
}
5004
 
5005
/* Compute the location of the next TLS descriptor entry in the GOT,
5006
   given the allocation data for a range.  */
5007
inline static bfd_signed_vma
5008
_frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
5009
{
5010
  bfd_signed_vma ret;
5011
 
5012
  ret = gad->tcur;
5013
 
5014
  gad->tcur += 8;
5015
 
5016
  /* If we're at the top of the region, wrap around to the bottom.  */
5017
  if (gad->tcur == gad->tmax)
5018
    gad->tcur = gad->tmin;
5019
 
5020
  return ret;
5021
}
5022
 
5023
/* Assign GOT offsets for every GOT entry and function descriptor.
5024
   Doing everything in a single pass is tricky.  */
5025
 
5026
static int
5027
_frvfdpic_assign_got_entries (void **entryp, void *info_)
5028
{
5029
  struct frvfdpic_relocs_info *entry = *entryp;
5030
  struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5031
 
5032
  if (entry->got12)
5033
    entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5034
  else if (entry->gotlos)
5035
    entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5036
  else if (entry->gothilo)
5037
    entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5038
 
5039
  if (entry->fdgot12)
5040
    entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5041
  else if (entry->fdgotlos)
5042
    entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5043
  else if (entry->fdgothilo)
5044
    entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5045
 
5046
  if (entry->fdgoff12)
5047
    entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5048
  else if (entry->plt && dinfo->got12.fdplt)
5049
    {
5050
      dinfo->got12.fdplt -= 8;
5051
      entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
5052
    }
5053
  else if (entry->fdgofflos)
5054
    entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5055
  else if (entry->plt && dinfo->gotlos.fdplt)
5056
    {
5057
      dinfo->gotlos.fdplt -= 8;
5058
      entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
5059
    }
5060
  else if (entry->plt)
5061
    {
5062
      dinfo->gothilo.fdplt -= 8;
5063
      entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5064
    }
5065
  else if (entry->privfd)
5066
    entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5067
 
5068
  if (entry->tlsoff12)
5069
    entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5070
  else if (entry->tlsofflos)
5071
    entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5072
  else if (entry->tlsoffhilo)
5073
    entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5074
 
5075
  if (entry->tlsdesc12)
5076
    entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5077
  else if (entry->tlsplt && dinfo->got12.tlsdplt)
5078
    {
5079
      dinfo->got12.tlsdplt -= 8;
5080
      entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5081
    }
5082
  else if (entry->tlsdesclos)
5083
    entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5084
  else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5085
    {
5086
      dinfo->gotlos.tlsdplt -= 8;
5087
      entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5088
    }
5089
  else if (entry->tlsplt)
5090
    {
5091
      dinfo->gothilo.tlsdplt -= 8;
5092
      entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5093
    }
5094
  else if (entry->tlsdeschilo)
5095
    entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5096
 
5097
  return 1;
5098
}
5099
 
5100
/* Assign GOT offsets to private function descriptors used by PLT
5101
   entries (or referenced by 32-bit offsets), as well as PLT entries
5102
   and lazy PLT entries.  */
5103
 
5104
static int
5105
_frvfdpic_assign_plt_entries (void **entryp, void *info_)
5106
{
5107
  struct frvfdpic_relocs_info *entry = *entryp;
5108
  struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5109
 
5110
  if (entry->privfd)
5111
    BFD_ASSERT (entry->fd_entry);
5112
 
5113
  if (entry->plt)
5114
    {
5115
      int size;
5116
 
5117
      /* We use the section's raw size to mark the location of the
5118
         next PLT entry.  */
5119
      entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5120
 
5121
      /* Figure out the length of this PLT entry based on the
5122
         addressing mode we need to reach the function descriptor.  */
5123
      BFD_ASSERT (entry->fd_entry);
5124
      if (entry->fd_entry >= -(1 << (12 - 1))
5125
          && entry->fd_entry < (1 << (12 - 1)))
5126
        size = 8;
5127
      else if (entry->fd_entry >= -(1 << (16 - 1))
5128
               && entry->fd_entry < (1 << (16 - 1)))
5129
        size = 12;
5130
      else
5131
        size = 16;
5132
 
5133
      frvfdpic_plt_section (dinfo->g.info)->size += size;
5134
    }
5135
 
5136
  if (entry->lazyplt)
5137
    {
5138
      entry->lzplt_entry = dinfo->g.lzplt;
5139
      dinfo->g.lzplt += 8;
5140
      /* If this entry is the one that gets the resolver stub, account
5141
         for the additional instruction.  */
5142
      if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5143
          == FRVFDPIC_LZPLT_RESOLV_LOC)
5144
        dinfo->g.lzplt += 4;
5145
    }
5146
 
5147
  if (entry->tlsplt)
5148
    {
5149
      int size;
5150
 
5151
      entry->tlsplt_entry
5152
        = frvfdpic_plt_section (dinfo->g.info)->size;
5153
 
5154
      if (dinfo->g.info->executable
5155
          && (entry->symndx != -1
5156
              || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5157
        {
5158
          if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5159
              /* FIXME: here we use the size of the TLS section
5160
                 as an upper bound for the value of the TLS
5161
                 symbol, because we may not know the exact value
5162
                 yet.  If we get it wrong, we'll just waste a
5163
                 word in the PLT, and we should never get even
5164
                 close to 32 KiB of TLS anyway.  */
5165
              && elf_hash_table (dinfo->g.info)->tls_sec
5166
              && (elf_hash_table (dinfo->g.info)->tls_sec->size
5167
                  + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5168
            size = 8;
5169
          else
5170
            size = 12;
5171
        }
5172
      else if (entry->tlsoff_entry)
5173
        {
5174
          if (entry->tlsoff_entry >= -(1 << (12 - 1))
5175
              && entry->tlsoff_entry < (1 << (12 - 1)))
5176
            size = 8;
5177
          else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5178
                   && entry->tlsoff_entry < (1 << (16 - 1)))
5179
            size = 12;
5180
          else
5181
            size = 16;
5182
        }
5183
      else
5184
        {
5185
          BFD_ASSERT (entry->tlsdesc_entry);
5186
 
5187
          if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5188
              && entry->tlsdesc_entry < (1 << (12 - 1)))
5189
            size = 8;
5190
          else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5191
                   && entry->tlsdesc_entry < (1 << (16 - 1)))
5192
            size = 12;
5193
          else
5194
            size = 16;
5195
        }
5196
 
5197
      frvfdpic_plt_section (dinfo->g.info)->size += size;
5198
    }
5199
 
5200
  return 1;
5201
}
5202
 
5203
/* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5204
   _frvfdpic_assign_plt_entries.  */
5205
 
5206
static int
5207
_frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5208
{
5209
  struct frvfdpic_relocs_info *entry = *entryp;
5210
 
5211
  entry->got_entry = 0;
5212
  entry->fdgot_entry = 0;
5213
  entry->fd_entry = 0;
5214
  entry->plt_entry = (bfd_vma)-1;
5215
  entry->lzplt_entry = (bfd_vma)-1;
5216
  entry->tlsoff_entry = 0;
5217
  entry->tlsdesc_entry = 0;
5218
  entry->tlsplt_entry = (bfd_vma)-1;
5219
 
5220
  return 1;
5221
}
5222
 
5223
/* Follow indirect and warning hash entries so that each got entry
5224
   points to the final symbol definition.  P must point to a pointer
5225
   to the hash table we're traversing.  Since this traversal may
5226
   modify the hash table, we set this pointer to NULL to indicate
5227
   we've made a potentially-destructive change to the hash table, so
5228
   the traversal must be restarted.  */
5229
static int
5230
_frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5231
{
5232
  struct frvfdpic_relocs_info *entry = *entryp;
5233
  htab_t *htab = p;
5234
 
5235
  if (entry->symndx == -1)
5236
    {
5237
      struct elf_link_hash_entry *h = entry->d.h;
5238
      struct frvfdpic_relocs_info *oentry;
5239
 
5240
      while (h->root.type == bfd_link_hash_indirect
5241
             || h->root.type == bfd_link_hash_warning)
5242
        h = (struct elf_link_hash_entry *)h->root.u.i.link;
5243
 
5244
      if (entry->d.h == h)
5245
        return 1;
5246
 
5247
      oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5248
                                                NO_INSERT);
5249
 
5250
      if (oentry)
5251
        {
5252
          /* Merge the two entries.  */
5253
          frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5254
          htab_clear_slot (*htab, entryp);
5255
          return 1;
5256
        }
5257
 
5258
      entry->d.h = h;
5259
 
5260
      /* If we can't find this entry with the new bfd hash, re-insert
5261
         it, and get the traversal restarted.  */
5262
      if (! htab_find (*htab, entry))
5263
        {
5264
          htab_clear_slot (*htab, entryp);
5265
          entryp = htab_find_slot (*htab, entry, INSERT);
5266
          if (! *entryp)
5267
            *entryp = entry;
5268
          /* Abort the traversal, since the whole table may have
5269
             moved, and leave it up to the parent to restart the
5270
             process.  */
5271
          *(htab_t *)p = NULL;
5272
          return 0;
5273
        }
5274
    }
5275
 
5276
  return 1;
5277
}
5278
 
5279
/* Compute the total size of the GOT, the PLT, the dynamic relocations
5280
   section and the rofixup section.  Assign locations for GOT and PLT
5281
   entries.  */
5282
 
5283
static bfd_boolean
5284
_frvfdpic_size_got_plt (bfd *output_bfd,
5285
                        struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5286
{
5287
  bfd_signed_vma odd;
5288
  bfd_vma limit, tlslimit;
5289
  struct bfd_link_info *info = gpinfop->g.info;
5290
  bfd *dynobj = elf_hash_table (info)->dynobj;
5291
 
5292
  memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5293
          sizeof (gpinfop->g));
5294
 
5295
  odd = 12;
5296
  /* Compute the total size taken by entries in the 12-bit and 16-bit
5297
     ranges, to tell how many PLT function descriptors we can bring
5298
     into the 12-bit range without causing the 16-bit range to
5299
     overflow.  */
5300
  limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5301
    + gpinfop->g.fd12 + gpinfop->g.fdlos
5302
    + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5303
  if (limit < (bfd_vma)1 << 16)
5304
    limit = ((bfd_vma)1 << 16) - limit;
5305
  else
5306
    limit = 0;
5307
  if (gpinfop->g.fdplt < limit)
5308
    {
5309
      tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5310
      limit = gpinfop->g.fdplt;
5311
    }
5312
  else
5313
    tlslimit = 0;
5314
  if (gpinfop->g.tlsdplt < tlslimit)
5315
    tlslimit = gpinfop->g.tlsdplt;
5316
 
5317
  /* Determine the ranges of GOT offsets that we can use for each
5318
     range of addressing modes.  */
5319
  odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5320
                                          0,
5321
                                          odd,
5322
                                          16,
5323
                                          gpinfop->g.got12,
5324
                                          gpinfop->g.fd12,
5325
                                          limit,
5326
                                          gpinfop->g.tlsd12,
5327
                                          tlslimit,
5328
                                          (bfd_vma)1 << (12-1));
5329
  odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5330
                                          gpinfop->got12.tmin,
5331
                                          odd,
5332
                                          gpinfop->got12.tmax,
5333
                                          gpinfop->g.gotlos,
5334
                                          gpinfop->g.fdlos,
5335
                                          gpinfop->g.fdplt
5336
                                          - gpinfop->got12.fdplt,
5337
                                          gpinfop->g.tlsdlos,
5338
                                          gpinfop->g.tlsdplt
5339
                                          - gpinfop->got12.tlsdplt,
5340
                                          (bfd_vma)1 << (16-1));
5341
  odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5342
                                          gpinfop->gotlos.tmin,
5343
                                          odd,
5344
                                          gpinfop->gotlos.tmax,
5345
                                          gpinfop->g.gothilo,
5346
                                          gpinfop->g.fdhilo,
5347
                                          gpinfop->g.fdplt
5348
                                          - gpinfop->got12.fdplt
5349
                                          - gpinfop->gotlos.fdplt,
5350
                                          gpinfop->g.tlsdhilo,
5351
                                          gpinfop->g.tlsdplt
5352
                                          - gpinfop->got12.tlsdplt
5353
                                          - gpinfop->gotlos.tlsdplt,
5354
                                          (bfd_vma)1 << (32-1));
5355
 
5356
  /* Now assign (most) GOT offsets.  */
5357
  htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5358
                 gpinfop);
5359
 
5360
  frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5361
    - gpinfop->gothilo.tmin
5362
    /* If an odd word is the last word of the GOT, we don't need this
5363
       word to be part of the GOT.  */
5364
    - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5365
  if (frvfdpic_got_section (info)->size == 0)
5366
    frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5367
  else if (frvfdpic_got_section (info)->size == 12
5368
           && ! elf_hash_table (info)->dynamic_sections_created)
5369
    {
5370
      frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5371
      frvfdpic_got_section (info)->size = 0;
5372
    }
5373
  /* This will be non-NULL during relaxation.  The assumption is that
5374
     the size of one of these sections will never grow, only shrink,
5375
     so we can use the larger buffer we allocated before.  */
5376
  else if (frvfdpic_got_section (info)->contents == NULL)
5377
    {
5378
      frvfdpic_got_section (info)->contents =
5379
        (bfd_byte *) bfd_zalloc (dynobj,
5380
                                 frvfdpic_got_section (info)->size);
5381
      if (frvfdpic_got_section (info)->contents == NULL)
5382
        return FALSE;
5383
    }
5384
 
5385
  if (frvfdpic_gotrel_section (info))
5386
    /* Subtract the number of lzplt entries, since those will generate
5387
       relocations in the pltrel section.  */
5388
    frvfdpic_gotrel_section (info)->size =
5389
      (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5390
      * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5391
  else
5392
    BFD_ASSERT (gpinfop->g.relocs == 0);
5393
  if (frvfdpic_gotrel_section (info)->size == 0)
5394
    frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5395
  else if (frvfdpic_gotrel_section (info)->contents == NULL)
5396
    {
5397
      frvfdpic_gotrel_section (info)->contents =
5398
        (bfd_byte *) bfd_zalloc (dynobj,
5399
                                 frvfdpic_gotrel_section (info)->size);
5400
      if (frvfdpic_gotrel_section (info)->contents == NULL)
5401
        return FALSE;
5402
    }
5403
 
5404
  frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5405
  if (frvfdpic_gotfixup_section (info)->size == 0)
5406
    frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5407
  else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5408
    {
5409
      frvfdpic_gotfixup_section (info)->contents =
5410
        (bfd_byte *) bfd_zalloc (dynobj,
5411
                                 frvfdpic_gotfixup_section (info)->size);
5412
      if (frvfdpic_gotfixup_section (info)->contents == NULL)
5413
        return FALSE;
5414
    }
5415
 
5416
  if (frvfdpic_pltrel_section (info))
5417
    {
5418
      frvfdpic_pltrel_section (info)->size =
5419
        gpinfop->g.lzplt / 8
5420
        * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5421
      if (frvfdpic_pltrel_section (info)->size == 0)
5422
        frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5423
      else if (frvfdpic_pltrel_section (info)->contents == NULL)
5424
        {
5425
          frvfdpic_pltrel_section (info)->contents =
5426
            (bfd_byte *) bfd_zalloc (dynobj,
5427
                                     frvfdpic_pltrel_section (info)->size);
5428
          if (frvfdpic_pltrel_section (info)->contents == NULL)
5429
            return FALSE;
5430
        }
5431
    }
5432
 
5433
  /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5434
     such that there's room for the additional instruction needed to
5435
     call the resolver.  Since _frvfdpic_assign_got_entries didn't
5436
     account for them, our block size is 4 bytes smaller than the real
5437
     block size.  */
5438
  if (frvfdpic_plt_section (info))
5439
    {
5440
      frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5441
        + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5442
           / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5443
    }
5444
 
5445
  /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5446
     actually assign lazy PLT entries addresses.  */
5447
  gpinfop->g.lzplt = 0;
5448
 
5449
  /* Save information that we're going to need to generate GOT and PLT
5450
     entries.  */
5451
  frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5452
 
5453
  if (get_elf_backend_data (output_bfd)->want_got_sym)
5454
    elf_hash_table (info)->hgot->root.u.def.value
5455
      = frvfdpic_got_initial_offset (info);
5456
 
5457
  if (frvfdpic_plt_section (info))
5458
    frvfdpic_plt_initial_offset (info) =
5459
      frvfdpic_plt_section (info)->size;
5460
 
5461
  /* Allocate a ret statement at plt_initial_offset, to be used by
5462
     locally-resolved TLS descriptors.  */
5463
  if (gpinfop->g.tls_ret_refs)
5464
    frvfdpic_plt_section (info)->size += 4;
5465
 
5466
  htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5467
                 gpinfop);
5468
 
5469
  /* Allocate the PLT section contents only after
5470
     _frvfdpic_assign_plt_entries has a chance to add the size of the
5471
     non-lazy PLT entries.  */
5472
  if (frvfdpic_plt_section (info))
5473
    {
5474
      if (frvfdpic_plt_section (info)->size == 0)
5475
        frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5476
      else if (frvfdpic_plt_section (info)->contents == NULL)
5477
        {
5478
          frvfdpic_plt_section (info)->contents =
5479
            (bfd_byte *) bfd_zalloc (dynobj,
5480
                                     frvfdpic_plt_section (info)->size);
5481
          if (frvfdpic_plt_section (info)->contents == NULL)
5482
            return FALSE;
5483
        }
5484
    }
5485
 
5486
  return TRUE;
5487
}
5488
 
5489
/* Set the sizes of the dynamic sections.  */
5490
 
5491
static bfd_boolean
5492
elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5493
                                      struct bfd_link_info *info)
5494
{
5495
  bfd *dynobj;
5496
  asection *s;
5497
  struct _frvfdpic_dynamic_got_plt_info gpinfo;
5498
 
5499
  dynobj = elf_hash_table (info)->dynobj;
5500
  BFD_ASSERT (dynobj != NULL);
5501
 
5502
  if (elf_hash_table (info)->dynamic_sections_created)
5503
    {
5504
      /* Set the contents of the .interp section to the interpreter.  */
5505
      if (info->executable)
5506
        {
5507
          s = bfd_get_section_by_name (dynobj, ".interp");
5508
          BFD_ASSERT (s != NULL);
5509
          s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5510
          s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5511
        }
5512
    }
5513
 
5514
  memset (&gpinfo, 0, sizeof (gpinfo));
5515
  gpinfo.g.info = info;
5516
 
5517
  for (;;)
5518
    {
5519
      htab_t relocs = frvfdpic_relocs_info (info);
5520
 
5521
      htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5522
 
5523
      if (relocs == frvfdpic_relocs_info (info))
5524
        break;
5525
    }
5526
 
5527
  htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5528
                 &gpinfo.g);
5529
 
5530
  /* Allocate space to save the summary information, we're going to
5531
     use it if we're doing relaxations.  */
5532
  frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5533
 
5534
  if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5535
    return FALSE;
5536
 
5537
  if (elf_hash_table (info)->dynamic_sections_created)
5538
    {
5539
      if (frvfdpic_got_section (info)->size)
5540
        if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5541
          return FALSE;
5542
 
5543
      if (frvfdpic_pltrel_section (info)->size)
5544
        if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5545
            || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5546
            || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5547
          return FALSE;
5548
 
5549
      if (frvfdpic_gotrel_section (info)->size)
5550
        if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5551
            || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5552
            || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5553
                                            sizeof (Elf32_External_Rel)))
5554
          return FALSE;
5555
    }
5556
 
5557
  return TRUE;
5558
}
5559
 
5560
static bfd_boolean
5561
elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5562
                                     struct bfd_link_info *info)
5563
{
5564
  if (!info->relocatable)
5565
    {
5566
      struct elf_link_hash_entry *h;
5567
 
5568
      /* Force a PT_GNU_STACK segment to be created.  */
5569
      if (! elf_tdata (output_bfd)->stack_flags)
5570
        elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
5571
 
5572
      /* Define __stacksize if it's not defined yet.  */
5573
      h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5574
                                FALSE, FALSE, FALSE);
5575
      if (! h || h->root.type != bfd_link_hash_defined
5576
          || h->type != STT_OBJECT
5577
          || !h->def_regular)
5578
        {
5579
          struct bfd_link_hash_entry *bh = NULL;
5580
 
5581
          if (!(_bfd_generic_link_add_one_symbol
5582
                (info, output_bfd, "__stacksize",
5583
                 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
5584
                 (const char *) NULL, FALSE,
5585
                 get_elf_backend_data (output_bfd)->collect, &bh)))
5586
            return FALSE;
5587
 
5588
          h = (struct elf_link_hash_entry *) bh;
5589
          h->def_regular = 1;
5590
          h->type = STT_OBJECT;
5591
          /* This one must NOT be hidden.  */
5592
        }
5593
    }
5594
 
5595
  return TRUE;
5596
}
5597
 
5598
/* Check whether any of the relocations was optimized away, and
5599
   subtract it from the relocation or fixup count.  */
5600
static bfd_boolean
5601
_frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5602
                                  struct bfd_link_info *info,
5603
 
5604
                                  bfd_boolean *changed)
5605
{
5606
  Elf_Internal_Shdr *symtab_hdr;
5607
  struct elf_link_hash_entry **sym_hashes;
5608
  Elf_Internal_Rela *rel, *erel;
5609
 
5610
  if ((sec->flags & SEC_RELOC) == 0
5611
      || sec->reloc_count == 0)
5612
    return TRUE;
5613
 
5614
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5615
  sym_hashes = elf_sym_hashes (abfd);
5616
 
5617
  rel = elf_section_data (sec)->relocs;
5618
 
5619
  /* Now examine each relocation.  */
5620
  for (erel = rel + sec->reloc_count; rel < erel; rel++)
5621
    {
5622
      struct elf_link_hash_entry *h;
5623
      unsigned long r_symndx;
5624
      struct frvfdpic_relocs_info *picrel;
5625
      struct _frvfdpic_dynamic_got_info *dinfo;
5626
 
5627
      if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5628
          && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5629
        continue;
5630
 
5631
      if (_bfd_elf_section_offset (sec->output_section->owner,
5632
                                   info, sec, rel->r_offset)
5633
          != (bfd_vma)-1)
5634
        continue;
5635
 
5636
      r_symndx = ELF32_R_SYM (rel->r_info);
5637
      if (r_symndx < symtab_hdr->sh_info)
5638
        h = NULL;
5639
      else
5640
        {
5641
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5642
          while (h->root.type == bfd_link_hash_indirect
5643
                 || h->root.type == bfd_link_hash_warning)
5644
            h = (struct elf_link_hash_entry *)h->root.u.i.link;
5645
        }
5646
 
5647
      if (h != NULL)
5648
        picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5649
                                                  abfd, h,
5650
                                                  rel->r_addend, NO_INSERT);
5651
      else
5652
        picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5653
                                                 abfd, r_symndx,
5654
                                                 rel->r_addend, NO_INSERT);
5655
 
5656
      if (! picrel)
5657
        return FALSE;
5658
 
5659
      *changed = TRUE;
5660
      dinfo = frvfdpic_dynamic_got_plt_info (info);
5661
 
5662
      _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5663
      if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5664
        picrel->relocs32--;
5665
      else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5666
        picrel->relocsfd--;
5667
      _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5668
    }
5669
 
5670
  return TRUE;
5671
}
5672
 
5673
static bfd_boolean
5674
frvfdpic_elf_discard_info (bfd *ibfd,
5675
                           struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5676
                           struct bfd_link_info *info)
5677
{
5678
  bfd_boolean changed = FALSE;
5679
  asection *s;
5680
  bfd *obfd = NULL;
5681
 
5682
  /* Account for relaxation of .eh_frame section.  */
5683
  for (s = ibfd->sections; s; s = s->next)
5684
    if (s->sec_info_type == ELF_INFO_TYPE_EH_FRAME)
5685
      {
5686
        if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5687
          return FALSE;
5688
        obfd = s->output_section->owner;
5689
      }
5690
 
5691
  if (changed)
5692
    {
5693
      struct _frvfdpic_dynamic_got_plt_info gpinfo;
5694
 
5695
      memset (&gpinfo, 0, sizeof (gpinfo));
5696
      memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5697
              sizeof (gpinfo.g));
5698
 
5699
      /* Clear GOT and PLT assignments.  */
5700
      htab_traverse (frvfdpic_relocs_info (info),
5701
                     _frvfdpic_reset_got_plt_entries,
5702
                     NULL);
5703
 
5704
      if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5705
        return FALSE;
5706
    }
5707
 
5708
  return TRUE;
5709
}
5710
 
5711
/* Look for opportunities to relax TLS relocations.  We can assume
5712
   we're linking the main executable or a static-tls library, since
5713
   otherwise we wouldn't have got here.  */
5714
 
5715
static int
5716
_frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5717
{
5718
  struct frvfdpic_relocs_info *entry = *entryp;
5719
  struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5720
 
5721
  _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5722
 
5723
  return 1;
5724
}
5725
 
5726
static bfd_boolean
5727
elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5728
                              struct bfd_link_info *info, bfd_boolean *again)
5729
{
5730
  struct _frvfdpic_dynamic_got_plt_info gpinfo;
5731
 
5732
  if (info->relocatable)
5733
    (*info->callbacks->einfo)
5734
      (_("%P%F: --relax and -r may not be used together\n"));
5735
 
5736
  /* If we return early, we didn't change anything.  */
5737
  *again = FALSE;
5738
 
5739
  /* We'll do our thing when requested to relax the GOT section.  */
5740
  if (sec != frvfdpic_got_section (info))
5741
    return TRUE;
5742
 
5743
  /* We can only relax when linking the main executable or a library
5744
     that can't be dlopened.  */
5745
  if (! info->executable && ! (info->flags & DF_STATIC_TLS))
5746
    return TRUE;
5747
 
5748
  /* If there isn't a TLS section for this binary, we can't do
5749
     anything about its TLS relocations (it probably doesn't have
5750
     any.  */
5751
  if (elf_hash_table (info)->tls_sec == NULL)
5752
    return TRUE;
5753
 
5754
  memset (&gpinfo, 0, sizeof (gpinfo));
5755
  memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5756
 
5757
  /* Now look for opportunities to relax, adjusting the GOT usage
5758
     as needed.  */
5759
  htab_traverse (frvfdpic_relocs_info (info),
5760
                 _frvfdpic_relax_got_plt_entries,
5761
                 &gpinfo.g);
5762
 
5763
  /* If we changed anything, reset and re-assign GOT and PLT entries.  */
5764
  if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5765
              &gpinfo.g, sizeof (gpinfo.g)) != 0)
5766
    {
5767
      /* Clear GOT and PLT assignments.  */
5768
      htab_traverse (frvfdpic_relocs_info (info),
5769
                     _frvfdpic_reset_got_plt_entries,
5770
                     NULL);
5771
 
5772
      /* The owner of the TLS section is the output bfd.  There should
5773
         be a better way to get to it.  */
5774
      if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5775
                                   &gpinfo))
5776
        return FALSE;
5777
 
5778
      /* Repeat until we don't make any further changes.  We could fail to
5779
         introduce changes in a round if, for example, the 12-bit range is
5780
         full, but we later release some space by getting rid of TLS
5781
         descriptors in it.  We have to repeat the whole process because
5782
         we might have changed the size of a section processed before this
5783
         one.  */
5784
      *again = TRUE;
5785
    }
5786
 
5787
  return TRUE;
5788
}
5789
 
5790
static bfd_boolean
5791
elf32_frvfdpic_modify_program_headers (bfd *output_bfd,
5792
                                       struct bfd_link_info *info)
5793
{
5794
  struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
5795
  struct elf_segment_map *m;
5796
  Elf_Internal_Phdr *p;
5797
 
5798
  /* objcopy and strip preserve what's already there using
5799
     elf32_frvfdpic_copy_private_bfd_data ().  */
5800
  if (! info)
5801
    return TRUE;
5802
 
5803
  for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
5804
    if (m->p_type == PT_GNU_STACK)
5805
      break;
5806
 
5807
  if (m)
5808
    {
5809
      struct elf_link_hash_entry *h;
5810
 
5811
      /* Obtain the pointer to the __stacksize symbol.  */
5812
      h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
5813
                                FALSE, FALSE, FALSE);
5814
      if (h)
5815
        {
5816
          while (h->root.type == bfd_link_hash_indirect
5817
                 || h->root.type == bfd_link_hash_warning)
5818
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
5819
          BFD_ASSERT (h->root.type == bfd_link_hash_defined);
5820
        }
5821
 
5822
      /* Set the header p_memsz from the symbol value.  We
5823
         intentionally ignore the symbol section.  */
5824
      if (h && h->root.type == bfd_link_hash_defined)
5825
        p->p_memsz = h->root.u.def.value;
5826
      else
5827
        p->p_memsz = DEFAULT_STACK_SIZE;
5828
 
5829
      p->p_align = 8;
5830
    }
5831
 
5832
  return TRUE;
5833
}
5834
 
5835
/* Fill in code and data in dynamic sections.  */
5836
 
5837
static bfd_boolean
5838
elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5839
                                   struct bfd_link_info *info ATTRIBUTE_UNUSED)
5840
{
5841
  /* Nothing to be done for non-FDPIC.  */
5842
  return TRUE;
5843
}
5844
 
5845
static bfd_boolean
5846
elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5847
                                        struct bfd_link_info *info)
5848
{
5849
  bfd *dynobj;
5850
  asection *sdyn;
5851
 
5852
  dynobj = elf_hash_table (info)->dynobj;
5853
 
5854
  if (frvfdpic_dynamic_got_plt_info (info))
5855
    {
5856
      BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5857
    }
5858
  if (frvfdpic_got_section (info))
5859
    {
5860
      BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5861
                  == (frvfdpic_gotrel_section (info)->reloc_count
5862
                      * sizeof (Elf32_External_Rel)));
5863
 
5864
      if (frvfdpic_gotfixup_section (info))
5865
        {
5866
          struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5867
          bfd_vma got_value = hgot->root.u.def.value
5868
            + hgot->root.u.def.section->output_section->vma
5869
            + hgot->root.u.def.section->output_offset;
5870
          struct bfd_link_hash_entry *hend;
5871
 
5872
          _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5873
                                 got_value, 0);
5874
 
5875
          if (frvfdpic_gotfixup_section (info)->size
5876
              != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5877
            {
5878
            error:
5879
              info->callbacks->einfo
5880
                ("LINKER BUG: .rofixup section size mismatch\n");
5881
              return FALSE;
5882
            }
5883
 
5884
          hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5885
                                       FALSE, FALSE, TRUE);
5886
          if (hend
5887
              && (hend->type == bfd_link_hash_defined
5888
                  || hend->type == bfd_link_hash_defweak)
5889
              && hend->u.def.section->output_section != NULL)
5890
            {
5891
              bfd_vma value =
5892
                frvfdpic_gotfixup_section (info)->output_section->vma
5893
                + frvfdpic_gotfixup_section (info)->output_offset
5894
                + frvfdpic_gotfixup_section (info)->size
5895
                - hend->u.def.section->output_section->vma
5896
                - hend->u.def.section->output_offset;
5897
              BFD_ASSERT (hend->u.def.value == value);
5898
              if (hend->u.def.value != value)
5899
                goto error;
5900
            }
5901
        }
5902
    }
5903
  if (frvfdpic_pltrel_section (info))
5904
    {
5905
      BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5906
                  == (frvfdpic_pltrel_section (info)->reloc_count
5907
                      * sizeof (Elf32_External_Rel)));
5908
    }
5909
 
5910
 
5911
  if (elf_hash_table (info)->dynamic_sections_created)
5912
    {
5913
      Elf32_External_Dyn * dyncon;
5914
      Elf32_External_Dyn * dynconend;
5915
 
5916
      sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5917
 
5918
      BFD_ASSERT (sdyn != NULL);
5919
 
5920
      dyncon = (Elf32_External_Dyn *) sdyn->contents;
5921
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5922
 
5923
      for (; dyncon < dynconend; dyncon++)
5924
        {
5925
          Elf_Internal_Dyn dyn;
5926
 
5927
          bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5928
 
5929
          switch (dyn.d_tag)
5930
            {
5931
            default:
5932
              break;
5933
 
5934
            case DT_PLTGOT:
5935
              dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5936
                + frvfdpic_got_section (info)->output_offset
5937
                + frvfdpic_got_initial_offset (info);
5938
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5939
              break;
5940
 
5941
            case DT_JMPREL:
5942
              dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5943
                ->output_section->vma
5944
                + frvfdpic_pltrel_section (info)->output_offset;
5945
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5946
              break;
5947
 
5948
            case DT_PLTRELSZ:
5949
              dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5950
              bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5951
              break;
5952
            }
5953
        }
5954
    }
5955
 
5956
  return TRUE;
5957
}
5958
 
5959
/* Adjust a symbol defined by a dynamic object and referenced by a
5960
   regular object.  */
5961
 
5962
static bfd_boolean
5963
elf32_frvfdpic_adjust_dynamic_symbol
5964
(struct bfd_link_info *info ATTRIBUTE_UNUSED,
5965
 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5966
{
5967
  bfd * dynobj;
5968
 
5969
  dynobj = elf_hash_table (info)->dynobj;
5970
 
5971
  /* Make sure we know what is going on here.  */
5972
  BFD_ASSERT (dynobj != NULL
5973
              && (h->u.weakdef != NULL
5974
                  || (h->def_dynamic
5975
                      && h->ref_regular
5976
                      && !h->def_regular)));
5977
 
5978
  /* If this is a weak symbol, and there is a real definition, the
5979
     processor independent code will have arranged for us to see the
5980
     real definition first, and we can just use the same value.  */
5981
  if (h->u.weakdef != NULL)
5982
    {
5983
      BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5984
                  || h->u.weakdef->root.type == bfd_link_hash_defweak);
5985
      h->root.u.def.section = h->u.weakdef->root.u.def.section;
5986
      h->root.u.def.value = h->u.weakdef->root.u.def.value;
5987
    }
5988
 
5989
  return TRUE;
5990
}
5991
 
5992
/* Perform any actions needed for dynamic symbols.  */
5993
 
5994
static bfd_boolean
5995
elf32_frvfdpic_finish_dynamic_symbol
5996
(bfd *output_bfd ATTRIBUTE_UNUSED,
5997
 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5998
 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5999
 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
6000
{
6001
  return TRUE;
6002
}
6003
 
6004
/* Decide whether to attempt to turn absptr or lsda encodings in
6005
   shared libraries into pcrel within the given input section.  */
6006
 
6007
static bfd_boolean
6008
frvfdpic_elf_use_relative_eh_frame
6009
(bfd *input_bfd ATTRIBUTE_UNUSED,
6010
 struct bfd_link_info *info ATTRIBUTE_UNUSED,
6011
 asection *eh_frame_section ATTRIBUTE_UNUSED)
6012
{
6013
  /* We can't use PC-relative encodings in FDPIC binaries, in general.  */
6014
  return FALSE;
6015
}
6016
 
6017
/* Adjust the contents of an eh_frame_hdr section before they're output.  */
6018
 
6019
static bfd_byte
6020
frvfdpic_elf_encode_eh_address (bfd *abfd,
6021
                                struct bfd_link_info *info,
6022
                                asection *osec, bfd_vma offset,
6023
                                asection *loc_sec, bfd_vma loc_offset,
6024
                                bfd_vma *encoded)
6025
{
6026
  struct elf_link_hash_entry *h;
6027
 
6028
  h = elf_hash_table (info)->hgot;
6029
  BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6030
 
6031
  if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
6032
              == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
6033
    return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6034
                                       loc_sec, loc_offset, encoded);
6035
 
6036
  BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
6037
              == (_frvfdpic_osec_to_segment
6038
                  (abfd, h->root.u.def.section->output_section)));
6039
 
6040
  *encoded = osec->vma + offset
6041
    - (h->root.u.def.value
6042
       + h->root.u.def.section->output_section->vma
6043
       + h->root.u.def.section->output_offset);
6044
 
6045
  return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6046
}
6047
 
6048
/* Look through the relocs for a section during the first phase.
6049
 
6050
   Besides handling virtual table relocs for gc, we have to deal with
6051
   all sorts of PIC-related relocations.  We describe below the
6052
   general plan on how to handle such relocations, even though we only
6053
   collect information at this point, storing them in hash tables for
6054
   perusal of later passes.
6055
 
6056
   32 relocations are propagated to the linker output when creating
6057
   position-independent output.  LO16 and HI16 relocations are not
6058
   supposed to be encountered in this case.
6059
 
6060
   LABEL16 should always be resolvable by the linker, since it's only
6061
   used by branches.
6062
 
6063
   LABEL24, on the other hand, is used by calls.  If it turns out that
6064
   the target of a call is a dynamic symbol, a PLT entry must be
6065
   created for it, which triggers the creation of a private function
6066
   descriptor and, unless lazy binding is disabled, a lazy PLT entry.
6067
 
6068
   GPREL relocations require the referenced symbol to be in the same
6069
   segment as _gp, but this can only be checked later.
6070
 
6071
   All GOT, GOTOFF and FUNCDESC relocations require a .got section to
6072
   exist.  LABEL24 might as well, since it may require a PLT entry,
6073
   that will require a got.
6074
 
6075
   Non-FUNCDESC GOT relocations require a GOT entry to be created
6076
   regardless of whether the symbol is dynamic.  However, since a
6077
   global symbol that turns out to not be exported may have the same
6078
   address of a non-dynamic symbol, we don't assign GOT entries at
6079
   this point, such that we can share them in this case.  A relocation
6080
   for the GOT entry always has to be created, be it to offset a
6081
   private symbol by the section load address, be it to get the symbol
6082
   resolved dynamically.
6083
 
6084
   FUNCDESC GOT relocations require a GOT entry to be created, and
6085
   handled as if a FUNCDESC relocation was applied to the GOT entry in
6086
   an object file.
6087
 
6088
   FUNCDESC relocations referencing a symbol that turns out to NOT be
6089
   dynamic cause a private function descriptor to be created.  The
6090
   FUNCDESC relocation then decays to a 32 relocation that points at
6091
   the private descriptor.  If the symbol is dynamic, the FUNCDESC
6092
   relocation is propagated to the linker output, such that the
6093
   dynamic linker creates the canonical descriptor, pointing to the
6094
   dynamically-resolved definition of the function.
6095
 
6096
   Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
6097
   symbols that are assigned to the same segment as the GOT, but we
6098
   can only check this later, after we know the complete set of
6099
   symbols defined and/or exported.
6100
 
6101
   FUNCDESC GOTOFF relocations require a function descriptor to be
6102
   created and, unless lazy binding is disabled or the symbol is not
6103
   dynamic, a lazy PLT entry.  Since we can't tell at this point
6104
   whether a symbol is going to be dynamic, we have to decide later
6105
   whether to create a lazy PLT entry or bind the descriptor directly
6106
   to the private function.
6107
 
6108
   FUNCDESC_VALUE relocations are not supposed to be present in object
6109
   files, but they may very well be simply propagated to the linker
6110
   output, since they have no side effect.
6111
 
6112
 
6113
   A function descriptor always requires a FUNCDESC_VALUE relocation.
6114
   Whether it's in .plt.rel or not depends on whether lazy binding is
6115
   enabled and on whether the referenced symbol is dynamic.
6116
 
6117
   The existence of a lazy PLT requires the resolverStub lazy PLT
6118
   entry to be present.
6119
 
6120
 
6121
   As for assignment of GOT, PLT and lazy PLT entries, and private
6122
   descriptors, we might do them all sequentially, but we can do
6123
   better than that.  For example, we can place GOT entries and
6124
   private function descriptors referenced using 12-bit operands
6125
   closer to the PIC register value, such that these relocations don't
6126
   overflow.  Those that are only referenced with LO16 relocations
6127
   could come next, but we may as well place PLT-required function
6128
   descriptors in the 12-bit range to make them shorter.  Symbols
6129
   referenced with LO16/HI16 may come next, but we may place
6130
   additional function descriptors in the 16-bit range if we can
6131
   reliably tell that we've already placed entries that are ever
6132
   referenced with only LO16.  PLT entries are therefore generated as
6133
   small as possible, while not introducing relocation overflows in
6134
   GOT or FUNCDESC_GOTOFF relocations.  Lazy PLT entries could be
6135
   generated before or after PLT entries, but not intermingled with
6136
   them, such that we can have more lazy PLT entries in range for a
6137
   branch to the resolverStub.  The resolverStub should be emitted at
6138
   the most distant location from the first lazy PLT entry such that
6139
   it's still in range for a branch, or closer, if there isn't a need
6140
   for so many lazy PLT entries.  Additional lazy PLT entries may be
6141
   emitted after the resolverStub, as long as branches are still in
6142
   range.  If the branch goes out of range, longer lazy PLT entries
6143
   are emitted.
6144
 
6145
   We could further optimize PLT and lazy PLT entries by giving them
6146
   priority in assignment to closer-to-gr17 locations depending on the
6147
   number of occurrences of references to them (assuming a function
6148
   that's called more often is more important for performance, so its
6149
   PLT entry should be faster), or taking hints from the compiler.
6150
   Given infinite time and money... :-)  */
6151
 
6152
static bfd_boolean
6153
elf32_frv_check_relocs (abfd, info, sec, relocs)
6154
     bfd *abfd;
6155
     struct bfd_link_info *info;
6156
     asection *sec;
6157
     const Elf_Internal_Rela *relocs;
6158
{
6159
  Elf_Internal_Shdr *symtab_hdr;
6160
  struct elf_link_hash_entry **sym_hashes;
6161
  const Elf_Internal_Rela *rel;
6162
  const Elf_Internal_Rela *rel_end;
6163
  bfd *dynobj;
6164
  struct frvfdpic_relocs_info *picrel;
6165
 
6166
  if (info->relocatable)
6167
    return TRUE;
6168
 
6169
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6170
  sym_hashes = elf_sym_hashes (abfd);
6171
 
6172
  dynobj = elf_hash_table (info)->dynobj;
6173
  rel_end = relocs + sec->reloc_count;
6174
  for (rel = relocs; rel < rel_end; rel++)
6175
    {
6176
      struct elf_link_hash_entry *h;
6177
      unsigned long r_symndx;
6178
 
6179
      r_symndx = ELF32_R_SYM (rel->r_info);
6180
      if (r_symndx < symtab_hdr->sh_info)
6181
        h = NULL;
6182
      else
6183
        {
6184
          h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6185
          while (h->root.type == bfd_link_hash_indirect
6186
                 || h->root.type == bfd_link_hash_warning)
6187
            h = (struct elf_link_hash_entry *) h->root.u.i.link;
6188
        }
6189
 
6190
      switch (ELF32_R_TYPE (rel->r_info))
6191
        {
6192
        case R_FRV_GETTLSOFF:
6193
        case R_FRV_TLSDESC_VALUE:
6194
        case R_FRV_GOTTLSDESC12:
6195
        case R_FRV_GOTTLSDESCHI:
6196
        case R_FRV_GOTTLSDESCLO:
6197
        case R_FRV_GOTTLSOFF12:
6198
        case R_FRV_GOTTLSOFFHI:
6199
        case R_FRV_GOTTLSOFFLO:
6200
        case R_FRV_TLSOFF:
6201
        case R_FRV_GOT12:
6202
        case R_FRV_GOTHI:
6203
        case R_FRV_GOTLO:
6204
        case R_FRV_FUNCDESC_GOT12:
6205
        case R_FRV_FUNCDESC_GOTHI:
6206
        case R_FRV_FUNCDESC_GOTLO:
6207
        case R_FRV_GOTOFF12:
6208
        case R_FRV_GOTOFFHI:
6209
        case R_FRV_GOTOFFLO:
6210
        case R_FRV_FUNCDESC_GOTOFF12:
6211
        case R_FRV_FUNCDESC_GOTOFFHI:
6212
        case R_FRV_FUNCDESC_GOTOFFLO:
6213
        case R_FRV_FUNCDESC:
6214
        case R_FRV_FUNCDESC_VALUE:
6215
        case R_FRV_TLSMOFF12:
6216
        case R_FRV_TLSMOFFHI:
6217
        case R_FRV_TLSMOFFLO:
6218
        case R_FRV_TLSMOFF:
6219
          if (! IS_FDPIC (abfd))
6220
            goto bad_reloc;
6221
          /* Fall through.  */
6222
        case R_FRV_GPREL12:
6223
        case R_FRV_GPRELU12:
6224
        case R_FRV_GPRELHI:
6225
        case R_FRV_GPRELLO:
6226
        case R_FRV_LABEL24:
6227
        case R_FRV_32:
6228
          if (! dynobj)
6229
            {
6230
              elf_hash_table (info)->dynobj = dynobj = abfd;
6231
              if (! _frv_create_got_section (abfd, info))
6232
                return FALSE;
6233
            }
6234
          if (! IS_FDPIC (abfd))
6235
            {
6236
              picrel = NULL;
6237
              break;
6238
            }
6239
          if (h != NULL)
6240
            {
6241
              if (h->dynindx == -1)
6242
                switch (ELF_ST_VISIBILITY (h->other))
6243
                  {
6244
                  case STV_INTERNAL:
6245
                  case STV_HIDDEN:
6246
                    break;
6247
                  default:
6248
                    bfd_elf_link_record_dynamic_symbol (info, h);
6249
                    break;
6250
                  }
6251
              picrel
6252
                = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6253
                                                   abfd, h,
6254
                                                   rel->r_addend, INSERT);
6255
            }
6256
          else
6257
            picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6258
                                                     (info), abfd, r_symndx,
6259
                                                     rel->r_addend, INSERT);
6260
          if (! picrel)
6261
            return FALSE;
6262
          break;
6263
 
6264
        default:
6265
          picrel = NULL;
6266
          break;
6267
        }
6268
 
6269
      switch (ELF32_R_TYPE (rel->r_info))
6270
        {
6271
        case R_FRV_LABEL24:
6272
          if (IS_FDPIC (abfd))
6273
            picrel->call = 1;
6274
          break;
6275
 
6276
        case R_FRV_FUNCDESC_VALUE:
6277
          picrel->relocsfdv++;
6278
          if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6279
            picrel->relocs32--;
6280
          /* Fall through.  */
6281
 
6282
        case R_FRV_32:
6283
          if (! IS_FDPIC (abfd))
6284
            break;
6285
 
6286
          picrel->sym = 1;
6287
          if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6288
            picrel->relocs32++;
6289
          break;
6290
 
6291
        case R_FRV_GOT12:
6292
          picrel->got12 = 1;
6293
          break;
6294
 
6295
        case R_FRV_GOTHI:
6296
        case R_FRV_GOTLO:
6297
          picrel->gothilo = 1;
6298
          break;
6299
 
6300
        case R_FRV_FUNCDESC_GOT12:
6301
          picrel->fdgot12 = 1;
6302
          break;
6303
 
6304
        case R_FRV_FUNCDESC_GOTHI:
6305
        case R_FRV_FUNCDESC_GOTLO:
6306
          picrel->fdgothilo = 1;
6307
          break;
6308
 
6309
        case R_FRV_GOTOFF12:
6310
        case R_FRV_GOTOFFHI:
6311
        case R_FRV_GOTOFFLO:
6312
          picrel->gotoff = 1;
6313
          break;
6314
 
6315
        case R_FRV_FUNCDESC_GOTOFF12:
6316
          picrel->fdgoff12 = 1;
6317
          break;
6318
 
6319
        case R_FRV_FUNCDESC_GOTOFFHI:
6320
        case R_FRV_FUNCDESC_GOTOFFLO:
6321
          picrel->fdgoffhilo = 1;
6322
          break;
6323
 
6324
        case R_FRV_FUNCDESC:
6325
          picrel->fd = 1;
6326
          picrel->relocsfd++;
6327
          break;
6328
 
6329
        case R_FRV_GETTLSOFF:
6330
          picrel->tlsplt = 1;
6331
          break;
6332
 
6333
        case R_FRV_TLSDESC_VALUE:
6334
          picrel->relocstlsd++;
6335
          goto bad_reloc;
6336
 
6337
        case R_FRV_GOTTLSDESC12:
6338
          picrel->tlsdesc12 = 1;
6339
          break;
6340
 
6341
        case R_FRV_GOTTLSDESCHI:
6342
        case R_FRV_GOTTLSDESCLO:
6343
          picrel->tlsdeschilo = 1;
6344
          break;
6345
 
6346
        case R_FRV_TLSMOFF12:
6347
        case R_FRV_TLSMOFFHI:
6348
        case R_FRV_TLSMOFFLO:
6349
        case R_FRV_TLSMOFF:
6350
          break;
6351
 
6352
        case R_FRV_GOTTLSOFF12:
6353
          picrel->tlsoff12 = 1;
6354
          info->flags |= DF_STATIC_TLS;
6355
          break;
6356
 
6357
        case R_FRV_GOTTLSOFFHI:
6358
        case R_FRV_GOTTLSOFFLO:
6359
          picrel->tlsoffhilo = 1;
6360
          info->flags |= DF_STATIC_TLS;
6361
          break;
6362
 
6363
        case R_FRV_TLSOFF:
6364
          picrel->relocstlsoff++;
6365
          info->flags |= DF_STATIC_TLS;
6366
          goto bad_reloc;
6367
 
6368
        /* This relocation describes the C++ object vtable hierarchy.
6369
           Reconstruct it for later use during GC.  */
6370
        case R_FRV_GNU_VTINHERIT:
6371
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6372
            return FALSE;
6373
          break;
6374
 
6375
        /* This relocation describes which C++ vtable entries are actually
6376
           used.  Record for later use during GC.  */
6377
        case R_FRV_GNU_VTENTRY:
6378
          BFD_ASSERT (h != NULL);
6379
          if (h != NULL
6380
              && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6381
            return FALSE;
6382
          break;
6383
 
6384
        case R_FRV_LABEL16:
6385
        case R_FRV_LO16:
6386
        case R_FRV_HI16:
6387
        case R_FRV_GPREL12:
6388
        case R_FRV_GPRELU12:
6389
        case R_FRV_GPREL32:
6390
        case R_FRV_GPRELHI:
6391
        case R_FRV_GPRELLO:
6392
        case R_FRV_TLSDESC_RELAX:
6393
        case R_FRV_GETTLSOFF_RELAX:
6394
        case R_FRV_TLSOFF_RELAX:
6395
          break;
6396
 
6397
        default:
6398
        bad_reloc:
6399
          info->callbacks->einfo
6400
            (_("%B: unsupported relocation type %i\n"),
6401
             abfd, ELF32_R_TYPE (rel->r_info));
6402
          return FALSE;
6403
        }
6404
    }
6405
 
6406
  return TRUE;
6407
}
6408
 
6409
 
6410
/* Return the machine subcode from the ELF e_flags header.  */
6411
 
6412
static int
6413
elf32_frv_machine (abfd)
6414
     bfd *abfd;
6415
{
6416
  switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6417
    {
6418
    default:                break;
6419
    case EF_FRV_CPU_FR550:  return bfd_mach_fr550;
6420
    case EF_FRV_CPU_FR500:  return bfd_mach_fr500;
6421
    case EF_FRV_CPU_FR450:  return bfd_mach_fr450;
6422
    case EF_FRV_CPU_FR405:  return bfd_mach_fr400;
6423
    case EF_FRV_CPU_FR400:  return bfd_mach_fr400;
6424
    case EF_FRV_CPU_FR300:  return bfd_mach_fr300;
6425
    case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6426
    case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6427
    }
6428
 
6429
  return bfd_mach_frv;
6430
}
6431
 
6432
/* Set the right machine number for a FRV ELF file.  */
6433
 
6434
static bfd_boolean
6435
elf32_frv_object_p (abfd)
6436
     bfd *abfd;
6437
{
6438
  bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6439
  return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6440
          == (IS_FDPIC (abfd)));
6441
}
6442
 
6443
/* Function to set the ELF flag bits.  */
6444
 
6445
static bfd_boolean
6446
frv_elf_set_private_flags (abfd, flags)
6447
     bfd *abfd;
6448
     flagword flags;
6449
{
6450
  elf_elfheader (abfd)->e_flags = flags;
6451
  elf_flags_init (abfd) = TRUE;
6452
  return TRUE;
6453
}
6454
 
6455
/* Copy backend specific data from one object module to another.  */
6456
 
6457
static bfd_boolean
6458
frv_elf_copy_private_bfd_data (ibfd, obfd)
6459
     bfd *ibfd;
6460
     bfd *obfd;
6461
{
6462
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6463
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6464
    return TRUE;
6465
 
6466
  BFD_ASSERT (!elf_flags_init (obfd)
6467
              || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
6468
 
6469
  elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6470
  elf_flags_init (obfd) = TRUE;
6471
 
6472
  /* Copy object attributes.  */
6473
  _bfd_elf_copy_obj_attributes (ibfd, obfd);
6474
 
6475
  return TRUE;
6476
}
6477
 
6478
/* Return true if the architecture described by elf header flag
6479
   EXTENSION is an extension of the architecture described by BASE.  */
6480
 
6481
static bfd_boolean
6482
frv_elf_arch_extension_p (flagword base, flagword extension)
6483
{
6484
  if (base == extension)
6485
    return TRUE;
6486
 
6487
  /* CPU_GENERIC code can be merged with code for a specific
6488
     architecture, in which case the result is marked as being
6489
     for the specific architecture.  Everything is therefore
6490
     an extension of CPU_GENERIC.  */
6491
  if (base == EF_FRV_CPU_GENERIC)
6492
    return TRUE;
6493
 
6494
  if (extension == EF_FRV_CPU_FR450)
6495
    if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6496
      return TRUE;
6497
 
6498
  if (extension == EF_FRV_CPU_FR405)
6499
    if (base == EF_FRV_CPU_FR400)
6500
      return TRUE;
6501
 
6502
  return FALSE;
6503
}
6504
 
6505
static bfd_boolean
6506
elf32_frvfdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
6507
{
6508
  unsigned i;
6509
 
6510
  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
6511
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
6512
    return TRUE;
6513
 
6514
  if (! frv_elf_copy_private_bfd_data (ibfd, obfd))
6515
    return FALSE;
6516
 
6517
  if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr
6518
      || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr)
6519
    return TRUE;
6520
 
6521
  /* Copy the stack size.  */
6522
  for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6523
    if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6524
      {
6525
        Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6526
 
6527
        for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6528
          if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6529
            {
6530
              memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6531
 
6532
              /* Rewrite the phdrs, since we're only called after they
6533
                 were first written.  */
6534
              if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd)
6535
                            ->s->sizeof_ehdr, SEEK_SET) != 0
6536
                  || get_elf_backend_data (obfd)->s
6537
                  ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6538
                                     elf_elfheader (obfd)->e_phnum) != 0)
6539
                return FALSE;
6540
              break;
6541
            }
6542
 
6543
        break;
6544
      }
6545
 
6546
  return TRUE;
6547
}
6548
 
6549
/* Merge backend specific data from an object file to the output
6550
   object file when linking.  */
6551
 
6552
static bfd_boolean
6553
frv_elf_merge_private_bfd_data (ibfd, obfd)
6554
     bfd *ibfd;
6555
     bfd *obfd;
6556
{
6557
  flagword old_flags, old_partial;
6558
  flagword new_flags, new_partial;
6559
  bfd_boolean error = FALSE;
6560
  char new_opt[80];
6561
  char old_opt[80];
6562
 
6563
  new_opt[0] = old_opt[0] = '\0';
6564
  new_flags = elf_elfheader (ibfd)->e_flags;
6565
  old_flags = elf_elfheader (obfd)->e_flags;
6566
 
6567
  if (new_flags & EF_FRV_FDPIC)
6568
    new_flags &= ~EF_FRV_PIC;
6569
 
6570
#ifdef DEBUG
6571
  (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6572
                         old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6573
                         bfd_get_filename (ibfd));
6574
#endif
6575
 
6576
  if (!elf_flags_init (obfd))                   /* First call, no flags set.  */
6577
    {
6578
      elf_flags_init (obfd) = TRUE;
6579
      old_flags = new_flags;
6580
    }
6581
 
6582
  else if (new_flags == old_flags)              /* Compatible flags are ok.  */
6583
    ;
6584
 
6585
  else                                          /* Possibly incompatible flags.  */
6586
    {
6587
      /* Warn if different # of gprs are used.  Note, 0 means nothing is
6588
         said about the size of gprs.  */
6589
      new_partial = (new_flags & EF_FRV_GPR_MASK);
6590
      old_partial = (old_flags & EF_FRV_GPR_MASK);
6591
      if (new_partial == old_partial)
6592
        ;
6593
 
6594
      else if (new_partial == 0)
6595
        ;
6596
 
6597
      else if (old_partial == 0)
6598
        old_flags |= new_partial;
6599
 
6600
      else
6601
        {
6602
          switch (new_partial)
6603
            {
6604
            default:            strcat (new_opt, " -mgpr-??"); break;
6605
            case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6606
            case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6607
            }
6608
 
6609
          switch (old_partial)
6610
            {
6611
            default:            strcat (old_opt, " -mgpr-??"); break;
6612
            case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6613
            case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6614
            }
6615
        }
6616
 
6617
      /* Warn if different # of fprs are used.  Note, 0 means nothing is
6618
         said about the size of fprs.  */
6619
      new_partial = (new_flags & EF_FRV_FPR_MASK);
6620
      old_partial = (old_flags & EF_FRV_FPR_MASK);
6621
      if (new_partial == old_partial)
6622
        ;
6623
 
6624
      else if (new_partial == 0)
6625
        ;
6626
 
6627
      else if (old_partial == 0)
6628
        old_flags |= new_partial;
6629
 
6630
      else
6631
        {
6632
          switch (new_partial)
6633
            {
6634
            default:              strcat (new_opt, " -mfpr-?");      break;
6635
            case EF_FRV_FPR_32:   strcat (new_opt, " -mfpr-32");     break;
6636
            case EF_FRV_FPR_64:   strcat (new_opt, " -mfpr-64");     break;
6637
            case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6638
            }
6639
 
6640
          switch (old_partial)
6641
            {
6642
            default:              strcat (old_opt, " -mfpr-?");      break;
6643
            case EF_FRV_FPR_32:   strcat (old_opt, " -mfpr-32");     break;
6644
            case EF_FRV_FPR_64:   strcat (old_opt, " -mfpr-64");     break;
6645
            case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6646
            }
6647
        }
6648
 
6649
      /* Warn if different dword support was used.  Note, 0 means nothing is
6650
         said about the dword support.  */
6651
      new_partial = (new_flags & EF_FRV_DWORD_MASK);
6652
      old_partial = (old_flags & EF_FRV_DWORD_MASK);
6653
      if (new_partial == old_partial)
6654
        ;
6655
 
6656
      else if (new_partial == 0)
6657
        ;
6658
 
6659
      else if (old_partial == 0)
6660
        old_flags |= new_partial;
6661
 
6662
      else
6663
        {
6664
          switch (new_partial)
6665
            {
6666
            default:               strcat (new_opt, " -mdword-?");  break;
6667
            case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword");    break;
6668
            case EF_FRV_DWORD_NO:  strcat (new_opt, " -mno-dword"); break;
6669
            }
6670
 
6671
          switch (old_partial)
6672
            {
6673
            default:               strcat (old_opt, " -mdword-?");  break;
6674
            case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword");    break;
6675
            case EF_FRV_DWORD_NO:  strcat (old_opt, " -mno-dword"); break;
6676
            }
6677
        }
6678
 
6679
      /* Or in flags that accumulate (ie, if one module uses it, mark that the
6680
         feature is used.  */
6681
      old_flags |= new_flags & (EF_FRV_DOUBLE
6682
                                | EF_FRV_MEDIA
6683
                                | EF_FRV_MULADD
6684
                                | EF_FRV_NON_PIC_RELOCS);
6685
 
6686
      /* If any module was compiled without -G0, clear the G0 bit.  */
6687
      old_flags = ((old_flags & ~ EF_FRV_G0)
6688
                   | (old_flags & new_flags & EF_FRV_G0));
6689
 
6690
      /* If any module was compiled without -mnopack, clear the mnopack bit.  */
6691
      old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6692
                   | (old_flags & new_flags & EF_FRV_NOPACK));
6693
 
6694
      /* We don't have to do anything if the pic flags are the same, or the new
6695
         module(s) were compiled with -mlibrary-pic.  */
6696
      new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6697
      old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6698
      if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6699
        ;
6700
 
6701
      /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6702
         flags if any from the new module.  */
6703
      else if ((old_partial & EF_FRV_LIBPIC) != 0)
6704
        old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6705
 
6706
      /* If we have mixtures of -fpic and -fPIC, or in both bits.  */
6707
      else if (new_partial != 0 && old_partial != 0)
6708
        old_flags |= new_partial;
6709
 
6710
      /* One module was compiled for pic and the other was not, see if we have
6711
         had any relocations that are not pic-safe.  */
6712
      else
6713
        {
6714
          if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6715
            old_flags |= new_partial;
6716
          else
6717
            {
6718
              old_flags &= ~ EF_FRV_PIC_FLAGS;
6719
#ifndef FRV_NO_PIC_ERROR
6720
              error = TRUE;
6721
              (*_bfd_error_handler)
6722
                (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6723
                 bfd_get_filename (ibfd),
6724
                 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6725
#endif
6726
            }
6727
        }
6728
 
6729
      /* Warn if different cpu is used (allow a specific cpu to override
6730
         the generic cpu).  */
6731
      new_partial = (new_flags & EF_FRV_CPU_MASK);
6732
      old_partial = (old_flags & EF_FRV_CPU_MASK);
6733
      if (frv_elf_arch_extension_p (new_partial, old_partial))
6734
        ;
6735
 
6736
      else if (frv_elf_arch_extension_p (old_partial, new_partial))
6737
        old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6738
 
6739
      else
6740
        {
6741
          switch (new_partial)
6742
            {
6743
            default:                 strcat (new_opt, " -mcpu=?");      break;
6744
            case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv");    break;
6745
            case EF_FRV_CPU_SIMPLE:  strcat (new_opt, " -mcpu=simple"); break;
6746
            case EF_FRV_CPU_FR550:   strcat (new_opt, " -mcpu=fr550");  break;
6747
            case EF_FRV_CPU_FR500:   strcat (new_opt, " -mcpu=fr500");  break;
6748
            case EF_FRV_CPU_FR450:   strcat (new_opt, " -mcpu=fr450");  break;
6749
            case EF_FRV_CPU_FR405:   strcat (new_opt, " -mcpu=fr405");  break;
6750
            case EF_FRV_CPU_FR400:   strcat (new_opt, " -mcpu=fr400");  break;
6751
            case EF_FRV_CPU_FR300:   strcat (new_opt, " -mcpu=fr300");  break;
6752
            case EF_FRV_CPU_TOMCAT:  strcat (new_opt, " -mcpu=tomcat"); break;
6753
            }
6754
 
6755
          switch (old_partial)
6756
            {
6757
            default:                 strcat (old_opt, " -mcpu=?");      break;
6758
            case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv");    break;
6759
            case EF_FRV_CPU_SIMPLE:  strcat (old_opt, " -mcpu=simple"); break;
6760
            case EF_FRV_CPU_FR550:   strcat (old_opt, " -mcpu=fr550");  break;
6761
            case EF_FRV_CPU_FR500:   strcat (old_opt, " -mcpu=fr500");  break;
6762
            case EF_FRV_CPU_FR450:   strcat (old_opt, " -mcpu=fr450");  break;
6763
            case EF_FRV_CPU_FR405:   strcat (old_opt, " -mcpu=fr405");  break;
6764
            case EF_FRV_CPU_FR400:   strcat (old_opt, " -mcpu=fr400");  break;
6765
            case EF_FRV_CPU_FR300:   strcat (old_opt, " -mcpu=fr300");  break;
6766
            case EF_FRV_CPU_TOMCAT:  strcat (old_opt, " -mcpu=tomcat"); break;
6767
            }
6768
        }
6769
 
6770
      /* Print out any mismatches from above.  */
6771
      if (new_opt[0])
6772
        {
6773
          error = TRUE;
6774
          (*_bfd_error_handler)
6775
            (_("%s: compiled with %s and linked with modules compiled with %s"),
6776
             bfd_get_filename (ibfd), new_opt, old_opt);
6777
        }
6778
 
6779
      /* Warn about any other mismatches */
6780
      new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6781
      old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6782
      if (new_partial != old_partial)
6783
        {
6784
          old_flags |= new_partial;
6785
          error = TRUE;
6786
          (*_bfd_error_handler)
6787
            (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6788
             bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6789
        }
6790
    }
6791
 
6792
  /* If the cpu is -mcpu=simple, then set the -mnopack bit.  */
6793
  if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6794
    old_flags |= EF_FRV_NOPACK;
6795
 
6796
  /* Update the old flags now with changes made above.  */
6797
  old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6798
  elf_elfheader (obfd)->e_flags = old_flags;
6799
  if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6800
    bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6801
 
6802
  if (((new_flags & EF_FRV_FDPIC) == 0)
6803
      != (! IS_FDPIC (ibfd)))
6804
    {
6805
      error = TRUE;
6806
      if (IS_FDPIC (obfd))
6807
        (*_bfd_error_handler)
6808
          (_("%s: cannot link non-fdpic object file into fdpic executable"),
6809
           bfd_get_filename (ibfd));
6810
      else
6811
        (*_bfd_error_handler)
6812
          (_("%s: cannot link fdpic object file into non-fdpic executable"),
6813
           bfd_get_filename (ibfd));
6814
    }
6815
 
6816
  if (error)
6817
    bfd_set_error (bfd_error_bad_value);
6818
 
6819
  return !error;
6820
}
6821
 
6822
 
6823
bfd_boolean
6824
frv_elf_print_private_bfd_data (abfd, ptr)
6825
     bfd *abfd;
6826
     PTR ptr;
6827
{
6828
  FILE *file = (FILE *) ptr;
6829
  flagword flags;
6830
 
6831
  BFD_ASSERT (abfd != NULL && ptr != NULL);
6832
 
6833
  /* Print normal ELF private data.  */
6834
  _bfd_elf_print_private_bfd_data (abfd, ptr);
6835
 
6836
  flags = elf_elfheader (abfd)->e_flags;
6837
  fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6838
 
6839
  switch (flags & EF_FRV_CPU_MASK)
6840
    {
6841
    default:                                                    break;
6842
    case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple");    break;
6843
    case EF_FRV_CPU_FR550:  fprintf (file, " -mcpu=fr550");     break;
6844
    case EF_FRV_CPU_FR500:  fprintf (file, " -mcpu=fr500");     break;
6845
    case EF_FRV_CPU_FR450:  fprintf (file, " -mcpu=fr450");     break;
6846
    case EF_FRV_CPU_FR405:  fprintf (file, " -mcpu=fr405");     break;
6847
    case EF_FRV_CPU_FR400:  fprintf (file, " -mcpu=fr400");     break;
6848
    case EF_FRV_CPU_FR300:  fprintf (file, " -mcpu=fr300");     break;
6849
    case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat");    break;
6850
    }
6851
 
6852
  switch (flags & EF_FRV_GPR_MASK)
6853
    {
6854
    default:                                                    break;
6855
    case EF_FRV_GPR_32: fprintf (file, " -mgpr-32");            break;
6856
    case EF_FRV_GPR_64: fprintf (file, " -mgpr-64");            break;
6857
    }
6858
 
6859
  switch (flags & EF_FRV_FPR_MASK)
6860
    {
6861
    default:                                                    break;
6862
    case EF_FRV_FPR_32:   fprintf (file, " -mfpr-32");          break;
6863
    case EF_FRV_FPR_64:   fprintf (file, " -mfpr-64");          break;
6864
    case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float");      break;
6865
    }
6866
 
6867
  switch (flags & EF_FRV_DWORD_MASK)
6868
    {
6869
    default:                                                    break;
6870
    case EF_FRV_DWORD_YES: fprintf (file, " -mdword");          break;
6871
    case EF_FRV_DWORD_NO:  fprintf (file, " -mno-dword");       break;
6872
    }
6873
 
6874
  if (flags & EF_FRV_DOUBLE)
6875
    fprintf (file, " -mdouble");
6876
 
6877
  if (flags & EF_FRV_MEDIA)
6878
    fprintf (file, " -mmedia");
6879
 
6880
  if (flags & EF_FRV_MULADD)
6881
    fprintf (file, " -mmuladd");
6882
 
6883
  if (flags & EF_FRV_PIC)
6884
    fprintf (file, " -fpic");
6885
 
6886
  if (flags & EF_FRV_BIGPIC)
6887
    fprintf (file, " -fPIC");
6888
 
6889
  if (flags & EF_FRV_LIBPIC)
6890
    fprintf (file, " -mlibrary-pic");
6891
 
6892
  if (flags & EF_FRV_FDPIC)
6893
    fprintf (file, " -mfdpic");
6894
 
6895
  if (flags & EF_FRV_NON_PIC_RELOCS)
6896
    fprintf (file, " non-pic relocations");
6897
 
6898
  if (flags & EF_FRV_G0)
6899
    fprintf (file, " -G0");
6900
 
6901
  fputc ('\n', file);
6902
  return TRUE;
6903
}
6904
 
6905
 
6906
/* Support for core dump NOTE sections.  */
6907
 
6908
static bfd_boolean
6909
elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6910
{
6911
  int offset;
6912
  unsigned int raw_size;
6913
 
6914
  switch (note->descsz)
6915
    {
6916
      default:
6917
        return FALSE;
6918
 
6919
      /* The Linux/FRV elf_prstatus struct is 268 bytes long.  The other
6920
         hardcoded offsets and sizes listed below (and contained within
6921
         this lexical block) refer to fields in the target's elf_prstatus
6922
         struct.  */
6923
      case 268:
6924
        /* `pr_cursig' is at offset 12.  */
6925
        elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
6926
 
6927
        /* `pr_pid' is at offset 24.  */
6928
        elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
6929
 
6930
        /* `pr_reg' is at offset 72.  */
6931
        offset = 72;
6932
 
6933
        /* Most grok_prstatus implementations set `raw_size' to the size
6934
           of the pr_reg field.  For Linux/FRV, we set `raw_size' to be
6935
           the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6936
           and `pr_interp_fdpic_loadmap', both of which (by design)
6937
           immediately follow `pr_reg'.  This will allow these fields to
6938
           be viewed by GDB as registers.
6939
 
6940
           `pr_reg' is 184 bytes long.  `pr_exec_fdpic_loadmap' and
6941
           `pr_interp_fdpic_loadmap' are 4 bytes each.  */
6942
        raw_size = 184 + 4 + 4;
6943
 
6944
        break;
6945
    }
6946
 
6947
  /* Make a ".reg/999" section.  */
6948
  return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6949
                                          note->descpos + offset);
6950
}
6951
 
6952
static bfd_boolean
6953
elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6954
{
6955
  switch (note->descsz)
6956
    {
6957
      default:
6958
        return FALSE;
6959
 
6960
      /* The Linux/FRV elf_prpsinfo struct is 124 bytes long.  */
6961
      case 124:
6962
 
6963
        /* `pr_fname' is found at offset 28 and is 16 bytes long.  */
6964
        elf_tdata (abfd)->core_program
6965
          = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6966
 
6967
        /* `pr_psargs' is found at offset 44 and is 80 bytes long.  */
6968
        elf_tdata (abfd)->core_command
6969
          = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6970
    }
6971
 
6972
  /* Note that for some reason, a spurious space is tacked
6973
     onto the end of the args in some (at least one anyway)
6974
     implementations, so strip it off if it exists.  */
6975
 
6976
  {
6977
    char *command = elf_tdata (abfd)->core_command;
6978
    int n = strlen (command);
6979
 
6980
    if (0 < n && command[n - 1] == ' ')
6981
      command[n - 1] = '\0';
6982
  }
6983
 
6984
  return TRUE;
6985
}
6986
#define ELF_ARCH                bfd_arch_frv
6987
#define ELF_TARGET_ID           FRV_ELF_DATA
6988
#define ELF_MACHINE_CODE        EM_CYGNUS_FRV
6989
#define ELF_MAXPAGESIZE         0x1000
6990
 
6991
#define TARGET_BIG_SYM          bfd_elf32_frv_vec
6992
#define TARGET_BIG_NAME         "elf32-frv"
6993
 
6994
#define elf_info_to_howto                       frv_info_to_howto_rela
6995
#define elf_backend_relocate_section            elf32_frv_relocate_section
6996
#define elf_backend_gc_mark_hook                elf32_frv_gc_mark_hook
6997
#define elf_backend_check_relocs                elf32_frv_check_relocs
6998
#define elf_backend_object_p                    elf32_frv_object_p
6999
#define elf_backend_add_symbol_hook             elf32_frv_add_symbol_hook
7000
 
7001
#define elf_backend_can_gc_sections             1
7002
#define elf_backend_rela_normal                 1
7003
 
7004
#define bfd_elf32_bfd_reloc_type_lookup         frv_reloc_type_lookup
7005
#define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
7006
#define bfd_elf32_bfd_set_private_flags         frv_elf_set_private_flags
7007
#define bfd_elf32_bfd_copy_private_bfd_data     frv_elf_copy_private_bfd_data
7008
#define bfd_elf32_bfd_merge_private_bfd_data    frv_elf_merge_private_bfd_data
7009
#define bfd_elf32_bfd_print_private_bfd_data    frv_elf_print_private_bfd_data
7010
 
7011
#define elf_backend_want_got_sym        1
7012
#define elf_backend_got_header_size     0
7013
#define elf_backend_want_got_plt        0
7014
#define elf_backend_plt_readonly        1
7015
#define elf_backend_want_plt_sym        0
7016
#define elf_backend_plt_header_size     0
7017
 
7018
#define elf_backend_finish_dynamic_sections \
7019
                elf32_frv_finish_dynamic_sections
7020
 
7021
#define elf_backend_grok_prstatus       elf32_frv_grok_prstatus
7022
#define elf_backend_grok_psinfo         elf32_frv_grok_psinfo
7023
 
7024
#include "elf32-target.h"
7025
 
7026
#undef ELF_MAXPAGESIZE
7027
#define ELF_MAXPAGESIZE         0x4000
7028
 
7029
#undef TARGET_BIG_SYM
7030
#define TARGET_BIG_SYM          bfd_elf32_frvfdpic_vec
7031
#undef TARGET_BIG_NAME
7032
#define TARGET_BIG_NAME         "elf32-frvfdpic"
7033
#undef  elf32_bed
7034
#define elf32_bed               elf32_frvfdpic_bed
7035
 
7036
#undef elf_info_to_howto_rel
7037
#define elf_info_to_howto_rel   frvfdpic_info_to_howto_rel
7038
 
7039
#undef bfd_elf32_bfd_link_hash_table_create
7040
#define bfd_elf32_bfd_link_hash_table_create \
7041
                frvfdpic_elf_link_hash_table_create
7042
#undef elf_backend_always_size_sections
7043
#define elf_backend_always_size_sections \
7044
                elf32_frvfdpic_always_size_sections
7045
#undef elf_backend_modify_program_headers
7046
#define elf_backend_modify_program_headers \
7047
                elf32_frvfdpic_modify_program_headers
7048
#undef bfd_elf32_bfd_copy_private_bfd_data
7049
#define bfd_elf32_bfd_copy_private_bfd_data \
7050
                elf32_frvfdpic_copy_private_bfd_data
7051
 
7052
#undef elf_backend_create_dynamic_sections
7053
#define elf_backend_create_dynamic_sections \
7054
                elf32_frvfdpic_create_dynamic_sections
7055
#undef elf_backend_adjust_dynamic_symbol
7056
#define elf_backend_adjust_dynamic_symbol \
7057
                elf32_frvfdpic_adjust_dynamic_symbol
7058
#undef elf_backend_size_dynamic_sections
7059
#define elf_backend_size_dynamic_sections \
7060
                elf32_frvfdpic_size_dynamic_sections
7061
#undef bfd_elf32_bfd_relax_section
7062
#define bfd_elf32_bfd_relax_section \
7063
  elf32_frvfdpic_relax_section
7064
#undef elf_backend_finish_dynamic_symbol
7065
#define elf_backend_finish_dynamic_symbol \
7066
                elf32_frvfdpic_finish_dynamic_symbol
7067
#undef elf_backend_finish_dynamic_sections
7068
#define elf_backend_finish_dynamic_sections \
7069
                elf32_frvfdpic_finish_dynamic_sections
7070
 
7071
#undef elf_backend_discard_info
7072
#define elf_backend_discard_info \
7073
                frvfdpic_elf_discard_info
7074
#undef elf_backend_can_make_relative_eh_frame
7075
#define elf_backend_can_make_relative_eh_frame \
7076
                frvfdpic_elf_use_relative_eh_frame
7077
#undef elf_backend_can_make_lsda_relative_eh_frame
7078
#define elf_backend_can_make_lsda_relative_eh_frame \
7079
                frvfdpic_elf_use_relative_eh_frame
7080
#undef elf_backend_encode_eh_address
7081
#define elf_backend_encode_eh_address \
7082
                frvfdpic_elf_encode_eh_address
7083
 
7084
#undef elf_backend_may_use_rel_p
7085
#define elf_backend_may_use_rel_p       1
7086
#undef elf_backend_may_use_rela_p
7087
#define elf_backend_may_use_rela_p      1
7088
/* We use REL for dynamic relocations only.  */
7089
#undef elf_backend_default_use_rela_p
7090
#define elf_backend_default_use_rela_p  1
7091
 
7092
#undef elf_backend_omit_section_dynsym
7093
#define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
7094
 
7095
#include "elf32-target.h"

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