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[deliverable/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20 #include "bfd.h"
21 #include "sysdep.h"
22 #include "libbfd.h"
23 #include "elf-bfd.h"
24 #include "elf/frv.h"
25
26 /* Forward declarations. */
27 static bfd_reloc_status_type elf32_frv_relocate_lo16
28 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
29 static bfd_reloc_status_type elf32_frv_relocate_hi16
30 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
31 static bfd_reloc_status_type elf32_frv_relocate_label24
32 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
33 static bfd_reloc_status_type elf32_frv_relocate_gprel12
34 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
35 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
36 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
37 static bfd_reloc_status_type elf32_frv_relocate_gprello
38 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
39 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
40 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
41 static reloc_howto_type *frv_reloc_type_lookup
42 PARAMS ((bfd *, bfd_reloc_code_real_type));
43 static void frv_info_to_howto_rela
44 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
45 static boolean elf32_frv_relocate_section
46 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
47 static boolean elf32_frv_add_symbol_hook
48 PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, const char **, flagword *, asection **, bfd_vma *));
49 static bfd_reloc_status_type frv_final_link_relocate
50 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma));
51 static boolean elf32_frv_gc_sweep_hook
52 PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
53 static asection * elf32_frv_gc_mark_hook
54 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, struct elf_link_hash_entry *, Elf_Internal_Sym *));
55 static boolean elf32_frv_check_relocs
56 PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
57 static int elf32_frv_machine PARAMS ((bfd *));
58 static boolean elf32_frv_object_p PARAMS ((bfd *));
59 static boolean frv_elf_set_private_flags PARAMS ((bfd *, flagword));
60 static boolean frv_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
61 static boolean frv_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
62 static boolean frv_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
63
64 static reloc_howto_type elf32_frv_howto_table [] =
65 {
66 /* This reloc does nothing. */
67 HOWTO (R_FRV_NONE, /* type */
68 0, /* rightshift */
69 2, /* size (0 = byte, 1 = short, 2 = long) */
70 32, /* bitsize */
71 false, /* pc_relative */
72 0, /* bitpos */
73 complain_overflow_bitfield, /* complain_on_overflow */
74 bfd_elf_generic_reloc, /* special_function */
75 "R_FRV_NONE", /* name */
76 false, /* partial_inplace */
77 0, /* src_mask */
78 0, /* dst_mask */
79 false), /* pcrel_offset */
80
81 /* A 32 bit absolute relocation. */
82 HOWTO (R_FRV_32, /* type */
83 0, /* rightshift */
84 2, /* size (0 = byte, 1 = short, 2 = long) */
85 32, /* bitsize */
86 false, /* pc_relative */
87 0, /* bitpos */
88 complain_overflow_bitfield, /* complain_on_overflow */
89 bfd_elf_generic_reloc, /* special_function */
90 "R_FRV_32", /* name */
91 false, /* partial_inplace */
92 0xffffffff, /* src_mask */
93 0xffffffff, /* dst_mask */
94 false), /* pcrel_offset */
95
96 /* A 16 bit pc-relative relocation. */
97 HOWTO (R_FRV_LABEL16, /* type */
98 0, /* rightshift */
99 2, /* size (0 = byte, 1 = short, 2 = long) */
100 16, /* bitsize */
101 true, /* pc_relative */
102 0, /* bitpos */
103 complain_overflow_bitfield, /* complain_on_overflow */
104 bfd_elf_generic_reloc, /* special_function */
105 "R_FRV_LABEL16", /* name */
106 false, /* partial_inplace */
107 0xffff, /* src_mask */
108 0xffff, /* dst_mask */
109 true), /* pcrel_offset */
110
111 /* A 24-bit pc-relative relocation. */
112 HOWTO (R_FRV_LABEL24, /* type */
113 2, /* rightshift */
114 2, /* size (0 = byte, 1 = short, 2 = long) */
115 26, /* bitsize */
116 true, /* pc_relative */
117 0, /* bitpos */
118 complain_overflow_bitfield, /* complain_on_overflow */
119 bfd_elf_generic_reloc, /* special_function */
120 "R_FRV_LABEL24", /* name */
121 false, /* partial_inplace */
122 0x7e03ffff, /* src_mask */
123 0x7e03ffff, /* dst_mask */
124 true), /* pcrel_offset */
125
126 HOWTO (R_FRV_LO16, /* type */
127 0, /* rightshift */
128 2, /* size (0 = byte, 1 = short, 2 = long) */
129 16, /* bitsize */
130 false, /* pc_relative */
131 0, /* bitpos */
132 complain_overflow_dont, /* complain_on_overflow */
133 bfd_elf_generic_reloc, /* special_function */
134 "R_FRV_LO16", /* name */
135 false, /* partial_inplace */
136 0xffff, /* src_mask */
137 0xffff, /* dst_mask */
138 false), /* pcrel_offset */
139
140 HOWTO (R_FRV_HI16, /* type */
141 0, /* rightshift */
142 2, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 false, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont, /* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_FRV_HI16", /* name */
149 false, /* partial_inplace */
150 0xffff, /* src_mask */
151 0xffff, /* dst_mask */
152 false), /* pcrel_offset */
153
154 HOWTO (R_FRV_GPREL12, /* type */
155 0, /* rightshift */
156 2, /* size (0 = byte, 1 = short, 2 = long) */
157 12, /* bitsize */
158 false, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_dont, /* complain_on_overflow */
161 bfd_elf_generic_reloc, /* special_function */
162 "R_FRV_GPREL12", /* name */
163 false, /* partial_inplace */
164 0xfff, /* src_mask */
165 0xfff, /* dst_mask */
166 false), /* pcrel_offset */
167
168 HOWTO (R_FRV_GPRELU12, /* type */
169 0, /* rightshift */
170 2, /* size (0 = byte, 1 = short, 2 = long) */
171 12, /* bitsize */
172 false, /* pc_relative */
173 0, /* bitpos */
174 complain_overflow_dont, /* complain_on_overflow */
175 bfd_elf_generic_reloc, /* special_function */
176 "R_FRV_GPRELU12", /* name */
177 false, /* partial_inplace */
178 0xfff, /* src_mask */
179 0x3f03f, /* dst_mask */
180 false), /* pcrel_offset */
181
182 HOWTO (R_FRV_GPREL32, /* type */
183 0, /* rightshift */
184 2, /* size (0 = byte, 1 = short, 2 = long) */
185 32, /* bitsize */
186 false, /* pc_relative */
187 0, /* bitpos */
188 complain_overflow_dont, /* complain_on_overflow */
189 bfd_elf_generic_reloc, /* special_function */
190 "R_FRV_GPREL32", /* name */
191 false, /* partial_inplace */
192 0xffffffff, /* src_mask */
193 0xffffffff, /* dst_mask */
194 false), /* pcrel_offset */
195
196 HOWTO (R_FRV_GPRELHI, /* type */
197 0, /* rightshift */
198 2, /* size (0 = byte, 1 = short, 2 = long) */
199 16, /* bitsize */
200 false, /* pc_relative */
201 0, /* bitpos */
202 complain_overflow_dont, /* complain_on_overflow */
203 bfd_elf_generic_reloc, /* special_function */
204 "R_FRV_GPRELHI", /* name */
205 false, /* partial_inplace */
206 0xffff, /* src_mask */
207 0xffff, /* dst_mask */
208 false), /* pcrel_offset */
209
210 HOWTO (R_FRV_GPRELLO, /* type */
211 0, /* rightshift */
212 2, /* size (0 = byte, 1 = short, 2 = long) */
213 16, /* bitsize */
214 false, /* pc_relative */
215 0, /* bitpos */
216 complain_overflow_dont, /* complain_on_overflow */
217 bfd_elf_generic_reloc, /* special_function */
218 "R_FRV_GPRELLO", /* name */
219 false, /* partial_inplace */
220 0xffff, /* src_mask */
221 0xffff, /* dst_mask */
222 false), /* pcrel_offset */
223 };
224
225 /* GNU extension to record C++ vtable hierarchy. */
226 static reloc_howto_type elf32_frv_vtinherit_howto =
227 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
228 0, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 false, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 NULL, /* special_function */
235 "R_FRV_GNU_VTINHERIT", /* name */
236 false, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 false); /* pcrel_offset */
240
241 /* GNU extension to record C++ vtable member usage. */
242 static reloc_howto_type elf32_frv_vtentry_howto =
243 HOWTO (R_FRV_GNU_VTENTRY, /* type */
244 0, /* rightshift */
245 2, /* size (0 = byte, 1 = short, 2 = long) */
246 0, /* bitsize */
247 false, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_dont, /* complain_on_overflow */
250 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
251 "R_FRV_GNU_VTENTRY", /* name */
252 false, /* partial_inplace */
253 0, /* src_mask */
254 0, /* dst_mask */
255 false); /* pcrel_offset */
256 \f
257 /* Map BFD reloc types to FRV ELF reloc types. */
258 #if 0
259 struct frv_reloc_map
260 {
261 unsigned int bfd_reloc_val;
262 unsigned int frv_reloc_val;
263 };
264
265 static const struct frv_reloc_map frv_reloc_map [] =
266 {
267 { BFD_RELOC_NONE, R_FRV_NONE },
268 { BFD_RELOC_32, R_FRV_32 },
269 { BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 },
270 { BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 },
271 { BFD_RELOC_FRV_LO16, R_FRV_LO16 },
272 { BFD_RELOC_FRV_HI16, R_FRV_HI16 },
273 { BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 },
274 { BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 },
275 { BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 },
276 { BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI },
277 { BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO },
278 { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
279 { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY },
280 };
281 #endif
282
283 /* Handle an FRV small data reloc. */
284
285 static bfd_reloc_status_type
286 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation, contents, value)
287 struct bfd_link_info *info;
288 bfd *input_bfd;
289 asection *input_section;
290 Elf_Internal_Rela *relocation;
291 bfd_byte *contents;
292 bfd_vma value;
293 {
294 bfd_vma insn;
295 bfd_vma gp;
296 struct bfd_link_hash_entry *h;
297
298 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
299
300 gp = (h->u.def.value
301 + h->u.def.section->output_section->vma
302 + h->u.def.section->output_offset);
303
304 value -= input_section->output_section->vma;
305 value -= (gp - input_section->output_section->vma);
306
307 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
308
309 value += relocation->r_addend;
310
311 if ((long) value > 0x7ff || (long) value < -0x800)
312 return bfd_reloc_overflow;
313
314 bfd_put_32 (input_bfd,
315 (insn & 0xfffff000) | (value & 0xfff),
316 contents + relocation->r_offset);
317
318 return bfd_reloc_ok;
319 }
320
321 /* Handle an FRV small data reloc. for the u12 field. */
322
323 static bfd_reloc_status_type
324 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation, contents, value)
325 struct bfd_link_info *info;
326 bfd *input_bfd;
327 asection *input_section;
328 Elf_Internal_Rela *relocation;
329 bfd_byte *contents;
330 bfd_vma value;
331 {
332 bfd_vma insn;
333 bfd_vma gp;
334 struct bfd_link_hash_entry *h;
335 bfd_vma mask;
336
337 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
338
339 gp = (h->u.def.value
340 + h->u.def.section->output_section->vma
341 + h->u.def.section->output_offset);
342
343 value -= input_section->output_section->vma;
344 value -= (gp - input_section->output_section->vma);
345
346 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
347
348 value += relocation->r_addend;
349
350 if ((long) value > 0x7ff || (long) value < -0x800)
351 return bfd_reloc_overflow;
352
353 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
354 mask = 0x3f03f;
355 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
356
357 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
358
359 return bfd_reloc_ok;
360 }
361
362 /* Handle an FRV ELF HI16 reloc. */
363
364 static bfd_reloc_status_type
365 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
366 bfd *input_bfd;
367 Elf_Internal_Rela *relhi;
368 bfd_byte *contents;
369 bfd_vma value;
370 {
371 bfd_vma insn;
372
373 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
374
375 value += relhi->r_addend;
376 value = ((value >> 16) & 0xffff);
377
378 insn = (insn & 0xffff0000) | value;
379
380 if ((long) value > 0xffff || (long) value < -0x10000)
381 return bfd_reloc_overflow;
382
383 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
384 return bfd_reloc_ok;
385
386 }
387 static bfd_reloc_status_type
388 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
389 bfd *input_bfd;
390 Elf_Internal_Rela *rello;
391 bfd_byte *contents;
392 bfd_vma value;
393 {
394 bfd_vma insn;
395
396 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
397
398 value += rello->r_addend;
399 value = value & 0xffff;
400
401 insn = (insn & 0xffff0000) | value;
402
403 if ((long) value > 0xffff || (long) value < -0x10000)
404 return bfd_reloc_overflow;
405
406 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
407 return bfd_reloc_ok;
408 }
409
410 /* Perform the relocation for the CALL label24 instruction. */
411
412 static bfd_reloc_status_type
413 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
414 bfd *input_bfd;
415 asection *input_section;
416 Elf_Internal_Rela *rello;
417 bfd_byte *contents;
418 bfd_vma value;
419 {
420 bfd_vma insn;
421 bfd_vma label6;
422 bfd_vma label18;
423
424 /* The format for the call instruction is:
425
426 0 000000 0001111 000000000000000000
427 label6 opcode label18
428
429 The branch calculation is: pc + (4*label24)
430 where label24 is the concatenation of label6 and label18. */
431
432 /* Grab the instruction. */
433 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
434
435 value -= input_section->output_section->vma + input_section->output_offset;
436 value -= rello->r_offset;
437 value += rello->r_addend;
438
439 value = value >> 2;
440
441 label6 = value & 0xfc0000;
442 label6 = label6 << 7;
443
444 label18 = value & 0x3ffff;
445
446 insn = insn & 0x803c0000;
447 insn = insn | label6;
448 insn = insn | label18;
449
450 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
451
452 return bfd_reloc_ok;
453 }
454
455 static bfd_reloc_status_type
456 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation, contents, value)
457 struct bfd_link_info *info;
458 bfd *input_bfd;
459 asection *input_section;
460 Elf_Internal_Rela *relocation;
461 bfd_byte *contents;
462 bfd_vma value;
463 {
464 bfd_vma insn;
465 bfd_vma gp;
466 struct bfd_link_hash_entry *h;
467
468 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
469
470 gp = (h->u.def.value
471 + h->u.def.section->output_section->vma
472 + h->u.def.section->output_offset);
473
474 value -= input_section->output_section->vma;
475 value -= (gp - input_section->output_section->vma);
476 value += relocation->r_addend;
477 value = ((value >> 16) & 0xffff);
478
479 if ((long) value > 0xffff || (long) value < -0x10000)
480 return bfd_reloc_overflow;
481
482 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
483 insn = (insn & 0xffff0000) | value;
484
485 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
486 return bfd_reloc_ok;
487 }
488
489 static bfd_reloc_status_type
490 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation, contents, value)
491 struct bfd_link_info *info;
492 bfd *input_bfd;
493 asection *input_section;
494 Elf_Internal_Rela *relocation;
495 bfd_byte *contents;
496 bfd_vma value;
497 {
498 bfd_vma insn;
499 bfd_vma gp;
500 struct bfd_link_hash_entry *h;
501
502 h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
503
504 gp = (h->u.def.value
505 + h->u.def.section->output_section->vma
506 + h->u.def.section->output_offset);
507
508 value -= input_section->output_section->vma;
509 value -= (gp - input_section->output_section->vma);
510 value += relocation->r_addend;
511 value = value & 0xffff;
512
513 if ((long) value > 0xffff || (long) value < -0x10000)
514 return bfd_reloc_overflow;
515
516 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
517 insn = (insn & 0xffff0000) | value;
518
519 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
520
521 return bfd_reloc_ok;
522 }
523
524 static reloc_howto_type *
525 frv_reloc_type_lookup (abfd, code)
526 bfd * abfd ATTRIBUTE_UNUSED;
527 bfd_reloc_code_real_type code;
528 {
529 switch (code)
530 {
531 default:
532 break;
533
534 case BFD_RELOC_NONE:
535 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
536
537 case BFD_RELOC_32:
538 case BFD_RELOC_CTOR:
539 return &elf32_frv_howto_table[ (int) R_FRV_32];
540
541 case BFD_RELOC_FRV_LABEL16:
542 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
543
544 case BFD_RELOC_FRV_LABEL24:
545 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
546
547 case BFD_RELOC_FRV_LO16:
548 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
549
550 case BFD_RELOC_FRV_HI16:
551 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
552
553 case BFD_RELOC_FRV_GPREL12:
554 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
555
556 case BFD_RELOC_FRV_GPRELU12:
557 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
558
559 case BFD_RELOC_FRV_GPREL32:
560 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
561
562 case BFD_RELOC_FRV_GPRELHI:
563 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
564
565 case BFD_RELOC_FRV_GPRELLO:
566 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
567
568 case BFD_RELOC_VTABLE_INHERIT:
569 return &elf32_frv_vtinherit_howto;
570
571 case BFD_RELOC_VTABLE_ENTRY:
572 return &elf32_frv_vtentry_howto;
573 }
574
575 return NULL;
576 }
577
578 /* Set the howto pointer for an FRV ELF reloc. */
579
580 static void
581 frv_info_to_howto_rela (abfd, cache_ptr, dst)
582 bfd * abfd ATTRIBUTE_UNUSED;
583 arelent * cache_ptr;
584 Elf32_Internal_Rela * dst;
585 {
586 unsigned int r_type;
587
588 r_type = ELF32_R_TYPE (dst->r_info);
589 switch (r_type)
590 {
591 case R_FRV_GNU_VTINHERIT:
592 cache_ptr->howto = &elf32_frv_vtinherit_howto;
593 break;
594
595 case R_FRV_GNU_VTENTRY:
596 cache_ptr->howto = &elf32_frv_vtentry_howto;
597 break;
598
599 default:
600 cache_ptr->howto = & elf32_frv_howto_table [r_type];
601 break;
602 }
603 }
604 \f
605 /* Perform a single relocation. By default we use the standard BFD
606 routines, but a few relocs, we have to do them ourselves. */
607
608 static bfd_reloc_status_type
609 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation)
610 reloc_howto_type * howto;
611 bfd * input_bfd;
612 asection * input_section;
613 bfd_byte * contents;
614 Elf_Internal_Rela * rel;
615 bfd_vma relocation;
616 {
617 return _bfd_final_link_relocate (howto, input_bfd, input_section,
618 contents, rel->r_offset, relocation,
619 rel->r_addend);
620 }
621
622 \f
623 /* Relocate an FRV ELF section.
624
625 The RELOCATE_SECTION function is called by the new ELF backend linker
626 to handle the relocations for a section.
627
628 The relocs are always passed as Rela structures; if the section
629 actually uses Rel structures, the r_addend field will always be
630 zero.
631
632 This function is responsible for adjusting the section contents as
633 necessary, and (if using Rela relocs and generating a relocateable
634 output file) adjusting the reloc addend as necessary.
635
636 This function does not have to worry about setting the reloc
637 address or the reloc symbol index.
638
639 LOCAL_SYMS is a pointer to the swapped in local symbols.
640
641 LOCAL_SECTIONS is an array giving the section in the input file
642 corresponding to the st_shndx field of each local symbol.
643
644 The global hash table entry for the global symbols can be found
645 via elf_sym_hashes (input_bfd).
646
647 When generating relocateable output, this function must handle
648 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
649 going to be the section symbol corresponding to the output
650 section, which means that the addend must be adjusted
651 accordingly. */
652
653 static boolean
654 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
655 contents, relocs, local_syms, local_sections)
656 bfd * output_bfd ATTRIBUTE_UNUSED;
657 struct bfd_link_info * info;
658 bfd * input_bfd;
659 asection * input_section;
660 bfd_byte * contents;
661 Elf_Internal_Rela * relocs;
662 Elf_Internal_Sym * local_syms;
663 asection ** local_sections;
664 {
665 Elf_Internal_Shdr * symtab_hdr;
666 struct elf_link_hash_entry ** sym_hashes;
667 Elf_Internal_Rela * rel;
668 Elf_Internal_Rela * relend;
669
670 if (info->relocateable)
671 return true;
672
673 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
674 sym_hashes = elf_sym_hashes (input_bfd);
675 relend = relocs + input_section->reloc_count;
676
677 for (rel = relocs; rel < relend; rel ++)
678 {
679 reloc_howto_type * howto;
680 unsigned long r_symndx;
681 Elf_Internal_Sym * sym;
682 asection * sec;
683 struct elf_link_hash_entry * h;
684 bfd_vma relocation;
685 bfd_reloc_status_type r;
686 const char * name = NULL;
687 int r_type;
688
689 r_type = ELF32_R_TYPE (rel->r_info);
690
691 if ( r_type == R_FRV_GNU_VTINHERIT
692 || r_type == R_FRV_GNU_VTENTRY)
693 continue;
694
695 /* This is a final link. */
696 r_symndx = ELF32_R_SYM (rel->r_info);
697 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
698 h = NULL;
699 sym = NULL;
700 sec = NULL;
701
702 if (r_symndx < symtab_hdr->sh_info)
703 {
704 sym = local_syms + r_symndx;
705 sec = local_sections [r_symndx];
706 relocation = (sec->output_section->vma
707 + sec->output_offset
708 + sym->st_value);
709
710 name = bfd_elf_string_from_elf_section
711 (input_bfd, symtab_hdr->sh_link, sym->st_name);
712 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
713 }
714 else
715 {
716 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
717
718 while (h->root.type == bfd_link_hash_indirect
719 || h->root.type == bfd_link_hash_warning)
720 h = (struct elf_link_hash_entry *) h->root.u.i.link;
721
722 name = h->root.root.string;
723
724 if (h->root.type == bfd_link_hash_defined
725 || h->root.type == bfd_link_hash_defweak)
726 {
727 sec = h->root.u.def.section;
728 relocation = (h->root.u.def.value
729 + sec->output_section->vma
730 + sec->output_offset);
731 }
732 else if (h->root.type == bfd_link_hash_undefweak)
733 {
734 relocation = 0;
735 }
736 else
737 {
738 if (! ((*info->callbacks->undefined_symbol)
739 (info, h->root.root.string, input_bfd,
740 input_section, rel->r_offset, true)))
741 return false;
742 relocation = 0;
743 }
744 }
745
746 if (r_type == R_FRV_HI16)
747 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
748
749 else if (r_type == R_FRV_LO16)
750 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
751
752 else if (r_type == R_FRV_LABEL24)
753 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel, contents, relocation);
754
755 else if (r_type == R_FRV_GPREL12)
756 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel, contents, relocation);
757
758 else if (r_type == R_FRV_GPRELU12)
759 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel, contents, relocation);
760
761 else if (r_type == R_FRV_GPRELLO)
762 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel, contents, relocation);
763
764 else if (r_type == R_FRV_GPRELHI)
765 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel, contents, relocation);
766
767 else
768 r = frv_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation);
769
770 if (r != bfd_reloc_ok)
771 {
772 const char * msg = (const char *) NULL;
773
774 switch (r)
775 {
776 case bfd_reloc_overflow:
777 r = info->callbacks->reloc_overflow
778 (info, name, howto->name, (bfd_vma) 0,
779 input_bfd, input_section, rel->r_offset);
780 break;
781
782 case bfd_reloc_undefined:
783 r = info->callbacks->undefined_symbol
784 (info, name, input_bfd, input_section, rel->r_offset, true);
785 break;
786
787 case bfd_reloc_outofrange:
788 msg = _("internal error: out of range error");
789 break;
790
791 case bfd_reloc_notsupported:
792 msg = _("internal error: unsupported relocation error");
793 break;
794
795 case bfd_reloc_dangerous:
796 msg = _("internal error: dangerous relocation");
797 break;
798
799 default:
800 msg = _("internal error: unknown error");
801 break;
802 }
803
804 if (msg)
805 r = info->callbacks->warning
806 (info, msg, name, input_bfd, input_section, rel->r_offset);
807
808 if (! r)
809 return false;
810 }
811 }
812
813 return true;
814 }
815 \f
816 /* Return the section that should be marked against GC for a given
817 relocation. */
818
819 static asection *
820 elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
821 asection * sec;
822 struct bfd_link_info * info ATTRIBUTE_UNUSED;
823 Elf_Internal_Rela * rel;
824 struct elf_link_hash_entry * h;
825 Elf_Internal_Sym * sym;
826 {
827 if (h != NULL)
828 {
829 switch (ELF32_R_TYPE (rel->r_info))
830 {
831 case R_FRV_GNU_VTINHERIT:
832 case R_FRV_GNU_VTENTRY:
833 break;
834
835 default:
836 switch (h->root.type)
837 {
838 default:
839 break;
840
841 case bfd_link_hash_defined:
842 case bfd_link_hash_defweak:
843 return h->root.u.def.section;
844
845 case bfd_link_hash_common:
846 return h->root.u.c.p->section;
847 }
848 }
849 }
850 else
851 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
852
853 return NULL;
854 }
855
856 /* Update the got entry reference counts for the section being removed. */
857
858 static boolean
859 elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
860 bfd * abfd ATTRIBUTE_UNUSED;
861 struct bfd_link_info * info ATTRIBUTE_UNUSED;
862 asection * sec ATTRIBUTE_UNUSED;
863 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
864 {
865 return true;
866 }
867
868 \f
869 /* Hook called by the linker routine which adds symbols from an object
870 file. We use it to put .comm items in .scomm, and not .comm. */
871
872 static boolean
873 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
874 bfd *abfd;
875 struct bfd_link_info *info;
876 const Elf_Internal_Sym *sym;
877 const char **namep ATTRIBUTE_UNUSED;
878 flagword *flagsp ATTRIBUTE_UNUSED;
879 asection **secp;
880 bfd_vma *valp;
881 {
882 if (sym->st_shndx == SHN_COMMON
883 && !info->relocateable
884 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
885 {
886 /* Common symbols less than or equal to -G nn bytes are
887 automatically put into .sbss. */
888
889 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
890
891 if (scomm == NULL)
892 {
893 scomm = bfd_make_section (abfd, ".scommon");
894 if (scomm == NULL
895 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
896 | SEC_IS_COMMON
897 | SEC_LINKER_CREATED)))
898 return false;
899 }
900
901 *secp = scomm;
902 *valp = sym->st_size;
903 }
904
905 return true;
906 }
907 /* Look through the relocs for a section during the first phase.
908 Since we don't do .gots or .plts, we just need to consider the
909 virtual table relocs for gc. */
910
911 static boolean
912 elf32_frv_check_relocs (abfd, info, sec, relocs)
913 bfd *abfd;
914 struct bfd_link_info *info;
915 asection *sec;
916 const Elf_Internal_Rela *relocs;
917 {
918 Elf_Internal_Shdr *symtab_hdr;
919 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
920 const Elf_Internal_Rela *rel;
921 const Elf_Internal_Rela *rel_end;
922
923 if (info->relocateable)
924 return true;
925
926 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
927 sym_hashes = elf_sym_hashes (abfd);
928 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
929 if (!elf_bad_symtab (abfd))
930 sym_hashes_end -= symtab_hdr->sh_info;
931
932 rel_end = relocs + sec->reloc_count;
933 for (rel = relocs; rel < rel_end; rel++)
934 {
935 struct elf_link_hash_entry *h;
936 unsigned long r_symndx;
937
938 r_symndx = ELF32_R_SYM (rel->r_info);
939 if (r_symndx < symtab_hdr->sh_info)
940 h = NULL;
941 else
942 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
943
944 switch (ELF32_R_TYPE (rel->r_info))
945 {
946 /* This relocation describes the C++ object vtable hierarchy.
947 Reconstruct it for later use during GC. */
948 case R_FRV_GNU_VTINHERIT:
949 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
950 return false;
951 break;
952
953 /* This relocation describes which C++ vtable entries are actually
954 used. Record for later use during GC. */
955 case R_FRV_GNU_VTENTRY:
956 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
957 return false;
958 break;
959 }
960 }
961
962 return true;
963 }
964
965 \f
966 /* Return the machine subcode from the ELF e_flags header. */
967
968 static int
969 elf32_frv_machine (abfd)
970 bfd *abfd;
971 {
972 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
973 {
974 default: break;
975 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
976 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
977 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
978 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
979 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
980 }
981
982 return bfd_mach_frv;
983 }
984
985 /* Set the right machine number for a FRV ELF file. */
986
987 static boolean
988 elf32_frv_object_p (abfd)
989 bfd *abfd;
990 {
991 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
992 return true;
993 }
994 \f
995 /* Function to set the ELF flag bits. */
996
997 static boolean
998 frv_elf_set_private_flags (abfd, flags)
999 bfd *abfd;
1000 flagword flags;
1001 {
1002 elf_elfheader (abfd)->e_flags = flags;
1003 elf_flags_init (abfd) = true;
1004 return true;
1005 }
1006
1007 /* Copy backend specific data from one object module to another. */
1008
1009 static boolean
1010 frv_elf_copy_private_bfd_data (ibfd, obfd)
1011 bfd *ibfd;
1012 bfd *obfd;
1013 {
1014 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1015 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1016 return true;
1017
1018 BFD_ASSERT (!elf_flags_init (obfd)
1019 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
1020
1021 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
1022 elf_flags_init (obfd) = true;
1023 return true;
1024 }
1025
1026 /* Merge backend specific data from an object file to the output
1027 object file when linking. */
1028
1029 static boolean
1030 frv_elf_merge_private_bfd_data (ibfd, obfd)
1031 bfd *ibfd;
1032 bfd *obfd;
1033 {
1034 flagword old_flags, old_partial;
1035 flagword new_flags, new_partial;
1036 boolean error = false;
1037 char new_opt[80];
1038 char old_opt[80];
1039
1040 new_opt[0] = old_opt[0] = '\0';
1041 new_flags = elf_elfheader (ibfd)->e_flags;
1042 old_flags = elf_elfheader (obfd)->e_flags;
1043
1044 #ifdef DEBUG
1045 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
1046 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
1047 bfd_get_filename (ibfd));
1048 #endif
1049
1050 if (!elf_flags_init (obfd)) /* First call, no flags set. */
1051 {
1052 elf_flags_init (obfd) = true;
1053 old_flags = new_flags;
1054 }
1055
1056 else if (new_flags == old_flags) /* Compatible flags are ok. */
1057 ;
1058
1059 else /* Possibly incompatible flags. */
1060 {
1061 /* Warn if different # of gprs are used. Note, 0 means nothing is
1062 said about the size of gprs. */
1063 new_partial = (new_flags & EF_FRV_GPR_MASK);
1064 old_partial = (old_flags & EF_FRV_GPR_MASK);
1065 if (new_partial == old_partial)
1066 ;
1067
1068 else if (new_partial == 0)
1069 ;
1070
1071 else if (old_partial == 0)
1072 old_flags |= new_partial;
1073
1074 else
1075 {
1076 switch (new_partial)
1077 {
1078 default: strcat (new_opt, " -mgpr-??"); break;
1079 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
1080 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
1081 }
1082
1083 switch (old_partial)
1084 {
1085 default: strcat (old_opt, " -mgpr-??"); break;
1086 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
1087 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
1088 }
1089 }
1090
1091 /* Warn if different # of fprs are used. Note, 0 means nothing is
1092 said about the size of fprs. */
1093 new_partial = (new_flags & EF_FRV_FPR_MASK);
1094 old_partial = (old_flags & EF_FRV_FPR_MASK);
1095 if (new_partial == old_partial)
1096 ;
1097
1098 else if (new_partial == 0)
1099 ;
1100
1101 else if (old_partial == 0)
1102 old_flags |= new_partial;
1103
1104 else
1105 {
1106 switch (new_partial)
1107 {
1108 default: strcat (new_opt, " -mfpr-?"); break;
1109 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
1110 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
1111 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
1112 }
1113
1114 switch (old_partial)
1115 {
1116 default: strcat (old_opt, " -mfpr-?"); break;
1117 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
1118 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
1119 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
1120 }
1121 }
1122
1123 /* Warn if different dword support was used. Note, 0 means nothing is
1124 said about the dword support. */
1125 new_partial = (new_flags & EF_FRV_DWORD_MASK);
1126 old_partial = (old_flags & EF_FRV_DWORD_MASK);
1127 if (new_partial == old_partial)
1128 ;
1129
1130 else if (new_partial == 0)
1131 ;
1132
1133 else if (old_partial == 0)
1134 old_flags |= new_partial;
1135
1136 else
1137 {
1138 switch (new_partial)
1139 {
1140 default: strcat (new_opt, " -mdword-?"); break;
1141 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
1142 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
1143 }
1144
1145 switch (old_partial)
1146 {
1147 default: strcat (old_opt, " -mdword-?"); break;
1148 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
1149 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
1150 }
1151 }
1152
1153 /* Or in flags that accumulate (ie, if one module uses it, mark that the
1154 feature is used. */
1155 old_flags |= new_flags & (EF_FRV_DOUBLE
1156 | EF_FRV_MEDIA
1157 | EF_FRV_MULADD
1158 | EF_FRV_NON_PIC_RELOCS);
1159
1160 /* If any module was compiled without -G0, clear the G0 bit. */
1161 old_flags = ((old_flags & ~ EF_FRV_G0)
1162 | (old_flags & new_flags & EF_FRV_G0));
1163
1164 /* If any module was compiled without -mnopack, clear the mnopack bit. */
1165 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
1166 | (old_flags & new_flags & EF_FRV_NOPACK));
1167
1168 /* We don't have to do anything if the pic flags are the same, or the new
1169 module(s) were compiled with -mlibrary-pic. */
1170 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
1171 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
1172 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
1173 ;
1174
1175 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
1176 flags if any from the new module. */
1177 else if ((old_partial & EF_FRV_LIBPIC) != 0)
1178 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
1179
1180 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
1181 else if (new_partial != 0 && old_partial != 0)
1182 old_flags |= new_partial;
1183
1184 /* One module was compiled for pic and the other was not, see if we have
1185 had any relocations that are not pic-safe. */
1186 else
1187 {
1188 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
1189 old_flags |= new_partial;
1190 else
1191 {
1192 old_flags &= ~ EF_FRV_PIC_FLAGS;
1193 #ifndef FRV_NO_PIC_ERROR
1194 error = true;
1195 (*_bfd_error_handler)
1196 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
1197 bfd_get_filename (ibfd),
1198 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
1199 #endif
1200 }
1201 }
1202
1203 /* Warn if different cpu is used (allow a specific cpu to override
1204 the generic cpu). */
1205 new_partial = (new_flags & EF_FRV_CPU_MASK);
1206 old_partial = (old_flags & EF_FRV_CPU_MASK);
1207 if (new_partial == old_partial)
1208 ;
1209
1210 else if (new_partial == EF_FRV_CPU_GENERIC)
1211 ;
1212
1213 else if (old_partial == EF_FRV_CPU_GENERIC)
1214 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
1215
1216 else
1217 {
1218 switch (new_partial)
1219 {
1220 default: strcat (new_opt, " -mcpu=?"); break;
1221 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
1222 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
1223 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
1224 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
1225 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
1226 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
1227 }
1228
1229 switch (old_partial)
1230 {
1231 default: strcat (old_opt, " -mcpu=?"); break;
1232 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
1233 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
1234 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
1235 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
1236 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
1237 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
1238 }
1239 }
1240
1241 /* Print out any mismatches from above. */
1242 if (new_opt[0])
1243 {
1244 error = true;
1245 (*_bfd_error_handler)
1246 (_("%s: compiled with %s and linked with modules compiled with %s"),
1247 bfd_get_filename (ibfd), new_opt, old_opt);
1248 }
1249
1250 /* Warn about any other mismatches */
1251 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
1252 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
1253 if (new_partial != old_partial)
1254 {
1255 old_flags |= new_partial;
1256 error = true;
1257 (*_bfd_error_handler)
1258 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
1259 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
1260 }
1261 }
1262
1263 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
1264 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
1265 old_flags |= EF_FRV_NOPACK;
1266
1267 /* Update the old flags now with changes made above. */
1268 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
1269 elf_elfheader (obfd)->e_flags = old_flags;
1270 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
1271 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
1272
1273 if (error)
1274 bfd_set_error (bfd_error_bad_value);
1275
1276 return !error;
1277 }
1278
1279 \f
1280 boolean
1281 frv_elf_print_private_bfd_data (abfd, ptr)
1282 bfd *abfd;
1283 PTR ptr;
1284 {
1285 FILE *file = (FILE *) ptr;
1286 flagword flags;
1287
1288 BFD_ASSERT (abfd != NULL && ptr != NULL);
1289
1290 /* Print normal ELF private data. */
1291 _bfd_elf_print_private_bfd_data (abfd, ptr);
1292
1293 flags = elf_elfheader (abfd)->e_flags;
1294 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
1295
1296 switch (flags & EF_FRV_CPU_MASK)
1297 {
1298 default: break;
1299 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
1300 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
1301 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
1302 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
1303 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
1304 }
1305
1306 switch (flags & EF_FRV_GPR_MASK)
1307 {
1308 default: break;
1309 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
1310 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
1311 }
1312
1313 switch (flags & EF_FRV_FPR_MASK)
1314 {
1315 default: break;
1316 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
1317 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
1318 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
1319 }
1320
1321 switch (flags & EF_FRV_DWORD_MASK)
1322 {
1323 default: break;
1324 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
1325 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
1326 }
1327
1328 if (flags & EF_FRV_DOUBLE)
1329 fprintf (file, " -mdouble");
1330
1331 if (flags & EF_FRV_MEDIA)
1332 fprintf (file, " -mmedia");
1333
1334 if (flags & EF_FRV_MULADD)
1335 fprintf (file, " -mmuladd");
1336
1337 if (flags & EF_FRV_PIC)
1338 fprintf (file, " -fpic");
1339
1340 if (flags & EF_FRV_BIGPIC)
1341 fprintf (file, " -fPIC");
1342
1343 if (flags & EF_FRV_NON_PIC_RELOCS)
1344 fprintf (file, " non-pic relocations");
1345
1346 if (flags & EF_FRV_G0)
1347 fprintf (file, " -G0");
1348
1349 fputc ('\n', file);
1350 return true;
1351 }
1352
1353 \f
1354 #define ELF_ARCH bfd_arch_frv
1355 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
1356 #define ELF_MAXPAGESIZE 0x1000
1357
1358 #define TARGET_BIG_SYM bfd_elf32_frv_vec
1359 #define TARGET_BIG_NAME "elf32-frv"
1360
1361 #define elf_info_to_howto_rel NULL
1362 #define elf_info_to_howto frv_info_to_howto_rela
1363 #define elf_backend_relocate_section elf32_frv_relocate_section
1364 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
1365 #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
1366 #define elf_backend_check_relocs elf32_frv_check_relocs
1367 #define elf_backend_object_p elf32_frv_object_p
1368 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
1369
1370 #define elf_backend_can_gc_sections 1
1371 #define elf_backend_rela_normal 1
1372
1373 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
1374 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
1375 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
1376 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
1377 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
1378
1379 #include "elf32-target.h"
GDB Binutils - Deliverables
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