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Do not skip section symbols that are used in relocs.
[binutils.git] / bfd / elf32-frv.c
blobfaa1401a537ffe5a9c81547a2036bcb37a613326
1 /* FRV-specific support for 32-bit ELF.
2 Copyright 2002, 2003 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 *,
35 bfd_byte *, bfd_vma));
36 static bfd_reloc_status_type elf32_frv_relocate_gprelu12
37 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
38 bfd_byte *, bfd_vma));
39 static bfd_reloc_status_type elf32_frv_relocate_gprello
40 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
41 bfd_byte *, bfd_vma));
42 static bfd_reloc_status_type elf32_frv_relocate_gprelhi
43 PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
44 bfd_byte *, bfd_vma));
45 static reloc_howto_type *frv_reloc_type_lookup
46 PARAMS ((bfd *, bfd_reloc_code_real_type));
47 static void frv_info_to_howto_rela
48 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
49 static bfd_boolean elf32_frv_relocate_section
50 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
51 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
52 static bfd_boolean elf32_frv_add_symbol_hook
53 PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
54 const char **, flagword *, asection **, bfd_vma *));
55 static bfd_reloc_status_type frv_final_link_relocate
56 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
57 Elf_Internal_Rela *, bfd_vma));
58 static bfd_boolean elf32_frv_gc_sweep_hook
59 PARAMS ((bfd *, struct bfd_link_info *, asection *, const
60 Elf_Internal_Rela *));
61 static asection * elf32_frv_gc_mark_hook
62 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
63 struct elf_link_hash_entry *, Elf_Internal_Sym *));
64 static bfd_boolean elf32_frv_check_relocs
65 PARAMS ((bfd *, struct bfd_link_info *, asection *,
66 const Elf_Internal_Rela *));
67 static int elf32_frv_machine
68 PARAMS ((bfd *));
69 static bfd_boolean elf32_frv_object_p
70 PARAMS ((bfd *));
71 static bfd_boolean frv_elf_set_private_flags
72 PARAMS ((bfd *, flagword));
73 static bfd_boolean frv_elf_copy_private_bfd_data
74 PARAMS ((bfd *, bfd *));
75 static bfd_boolean frv_elf_merge_private_bfd_data
76 PARAMS ((bfd *, bfd *));
77 static bfd_boolean frv_elf_print_private_bfd_data
78 PARAMS ((bfd *, PTR));
79
80 static reloc_howto_type elf32_frv_howto_table [] =
81 {
82 /* This reloc does nothing. */
83 HOWTO (R_FRV_NONE, /* type */
84 0, /* rightshift */
85 2, /* size (0 = byte, 1 = short, 2 = long) */
86 32, /* bitsize */
87 FALSE, /* pc_relative */
88 0, /* bitpos */
89 complain_overflow_bitfield, /* complain_on_overflow */
90 bfd_elf_generic_reloc, /* special_function */
91 "R_FRV_NONE", /* name */
92 FALSE, /* partial_inplace */
93 0, /* src_mask */
94 0, /* dst_mask */
95 FALSE), /* pcrel_offset */
96
97 /* A 32 bit absolute relocation. */
98 HOWTO (R_FRV_32, /* type */
99 0, /* rightshift */
100 2, /* size (0 = byte, 1 = short, 2 = long) */
101 32, /* bitsize */
102 FALSE, /* pc_relative */
103 0, /* bitpos */
104 complain_overflow_bitfield, /* complain_on_overflow */
105 bfd_elf_generic_reloc, /* special_function */
106 "R_FRV_32", /* name */
107 FALSE, /* partial_inplace */
108 0xffffffff, /* src_mask */
109 0xffffffff, /* dst_mask */
110 FALSE), /* pcrel_offset */
111
112 /* A 16 bit pc-relative relocation. */
113 HOWTO (R_FRV_LABEL16, /* type */
114 0, /* rightshift */
115 2, /* size (0 = byte, 1 = short, 2 = long) */
116 16, /* bitsize */
117 TRUE, /* pc_relative */
118 0, /* bitpos */
119 complain_overflow_bitfield, /* complain_on_overflow */
120 bfd_elf_generic_reloc, /* special_function */
121 "R_FRV_LABEL16", /* name */
122 FALSE, /* partial_inplace */
123 0xffff, /* src_mask */
124 0xffff, /* dst_mask */
125 TRUE), /* pcrel_offset */
126
127 /* A 24-bit pc-relative relocation. */
128 HOWTO (R_FRV_LABEL24, /* type */
129 2, /* rightshift */
130 2, /* size (0 = byte, 1 = short, 2 = long) */
131 26, /* bitsize */
132 TRUE, /* pc_relative */
133 0, /* bitpos */
134 complain_overflow_bitfield, /* complain_on_overflow */
135 bfd_elf_generic_reloc, /* special_function */
136 "R_FRV_LABEL24", /* name */
137 FALSE, /* partial_inplace */
138 0x7e03ffff, /* src_mask */
139 0x7e03ffff, /* dst_mask */
140 TRUE), /* pcrel_offset */
141
142 HOWTO (R_FRV_LO16, /* type */
143 0, /* rightshift */
144 2, /* size (0 = byte, 1 = short, 2 = long) */
145 16, /* bitsize */
146 FALSE, /* pc_relative */
147 0, /* bitpos */
148 complain_overflow_dont, /* complain_on_overflow */
149 bfd_elf_generic_reloc, /* special_function */
150 "R_FRV_LO16", /* name */
151 FALSE, /* partial_inplace */
152 0xffff, /* src_mask */
153 0xffff, /* dst_mask */
154 FALSE), /* pcrel_offset */
155
156 HOWTO (R_FRV_HI16, /* type */
157 0, /* rightshift */
158 2, /* size (0 = byte, 1 = short, 2 = long) */
159 16, /* bitsize */
160 FALSE, /* pc_relative */
161 0, /* bitpos */
162 complain_overflow_dont, /* complain_on_overflow */
163 bfd_elf_generic_reloc, /* special_function */
164 "R_FRV_HI16", /* name */
165 FALSE, /* partial_inplace */
166 0xffff, /* src_mask */
167 0xffff, /* dst_mask */
168 FALSE), /* pcrel_offset */
169
170 HOWTO (R_FRV_GPREL12, /* type */
171 0, /* rightshift */
172 2, /* size (0 = byte, 1 = short, 2 = long) */
173 12, /* bitsize */
174 FALSE, /* pc_relative */
175 0, /* bitpos */
176 complain_overflow_dont, /* complain_on_overflow */
177 bfd_elf_generic_reloc, /* special_function */
178 "R_FRV_GPREL12", /* name */
179 FALSE, /* partial_inplace */
180 0xfff, /* src_mask */
181 0xfff, /* dst_mask */
182 FALSE), /* pcrel_offset */
183
184 HOWTO (R_FRV_GPRELU12, /* type */
185 0, /* rightshift */
186 2, /* size (0 = byte, 1 = short, 2 = long) */
187 12, /* bitsize */
188 FALSE, /* pc_relative */
189 0, /* bitpos */
190 complain_overflow_dont, /* complain_on_overflow */
191 bfd_elf_generic_reloc, /* special_function */
192 "R_FRV_GPRELU12", /* name */
193 FALSE, /* partial_inplace */
194 0xfff, /* src_mask */
195 0x3f03f, /* dst_mask */
196 FALSE), /* pcrel_offset */
197
198 HOWTO (R_FRV_GPREL32, /* type */
199 0, /* rightshift */
200 2, /* size (0 = byte, 1 = short, 2 = long) */
201 32, /* bitsize */
202 FALSE, /* pc_relative */
203 0, /* bitpos */
204 complain_overflow_dont, /* complain_on_overflow */
205 bfd_elf_generic_reloc, /* special_function */
206 "R_FRV_GPREL32", /* name */
207 FALSE, /* partial_inplace */
208 0xffffffff, /* src_mask */
209 0xffffffff, /* dst_mask */
210 FALSE), /* pcrel_offset */
211
212 HOWTO (R_FRV_GPRELHI, /* type */
213 0, /* rightshift */
214 2, /* size (0 = byte, 1 = short, 2 = long) */
215 16, /* bitsize */
216 FALSE, /* pc_relative */
217 0, /* bitpos */
218 complain_overflow_dont, /* complain_on_overflow */
219 bfd_elf_generic_reloc, /* special_function */
220 "R_FRV_GPRELHI", /* name */
221 FALSE, /* partial_inplace */
222 0xffff, /* src_mask */
223 0xffff, /* dst_mask */
224 FALSE), /* pcrel_offset */
225
226 HOWTO (R_FRV_GPRELLO, /* type */
227 0, /* rightshift */
228 2, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 FALSE, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_dont, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_FRV_GPRELLO", /* name */
235 FALSE, /* partial_inplace */
236 0xffff, /* src_mask */
237 0xffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
239 };
240
241 /* GNU extension to record C++ vtable hierarchy. */
242 static reloc_howto_type elf32_frv_vtinherit_howto =
243 HOWTO (R_FRV_GNU_VTINHERIT, /* 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 NULL, /* special_function */
251 "R_FRV_GNU_VTINHERIT", /* name */
252 FALSE, /* partial_inplace */
253 0, /* src_mask */
254 0, /* dst_mask */
255 FALSE); /* pcrel_offset */
256
257 /* GNU extension to record C++ vtable member usage. */
258 static reloc_howto_type elf32_frv_vtentry_howto =
259 HOWTO (R_FRV_GNU_VTENTRY, /* type */
260 0, /* rightshift */
261 2, /* size (0 = byte, 1 = short, 2 = long) */
262 0, /* bitsize */
263 FALSE, /* pc_relative */
264 0, /* bitpos */
265 complain_overflow_dont, /* complain_on_overflow */
266 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
267 "R_FRV_GNU_VTENTRY", /* name */
268 FALSE, /* partial_inplace */
269 0, /* src_mask */
270 0, /* dst_mask */
271 FALSE); /* pcrel_offset */
272 \f
273 /* Map BFD reloc types to FRV ELF reloc types. */
274 #if 0
275 struct frv_reloc_map
276 {
277 unsigned int bfd_reloc_val;
278 unsigned int frv_reloc_val;
279 };
280
281 static const struct frv_reloc_map frv_reloc_map [] =
282 {
283 { BFD_RELOC_NONE, R_FRV_NONE },
284 { BFD_RELOC_32, R_FRV_32 },
285 { BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 },
286 { BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 },
287 { BFD_RELOC_FRV_LO16, R_FRV_LO16 },
288 { BFD_RELOC_FRV_HI16, R_FRV_HI16 },
289 { BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 },
290 { BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 },
291 { BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 },
292 { BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI },
293 { BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO },
294 { BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
295 { BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY },
296 };
297 #endif
298
299 /* Handle an FRV small data reloc. */
300
301 static bfd_reloc_status_type
302 elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
303 contents, value)
304 struct bfd_link_info *info;
305 bfd *input_bfd;
306 asection *input_section;
307 Elf_Internal_Rela *relocation;
308 bfd_byte *contents;
309 bfd_vma value;
310 {
311 bfd_vma insn;
312 bfd_vma gp;
313 struct bfd_link_hash_entry *h;
314
315 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
316
317 gp = (h->u.def.value
318 + h->u.def.section->output_section->vma
319 + h->u.def.section->output_offset);
320
321 value -= input_section->output_section->vma;
322 value -= (gp - input_section->output_section->vma);
323
324 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
325
326 value += relocation->r_addend;
327
328 if ((long) value > 0x7ff || (long) value < -0x800)
329 return bfd_reloc_overflow;
330
331 bfd_put_32 (input_bfd,
332 (insn & 0xfffff000) | (value & 0xfff),
333 contents + relocation->r_offset);
334
335 return bfd_reloc_ok;
336 }
337
338 /* Handle an FRV small data reloc. for the u12 field. */
339
340 static bfd_reloc_status_type
341 elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
342 contents, value)
343 struct bfd_link_info *info;
344 bfd *input_bfd;
345 asection *input_section;
346 Elf_Internal_Rela *relocation;
347 bfd_byte *contents;
348 bfd_vma value;
349 {
350 bfd_vma insn;
351 bfd_vma gp;
352 struct bfd_link_hash_entry *h;
353 bfd_vma mask;
354
355 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
356
357 gp = (h->u.def.value
358 + h->u.def.section->output_section->vma
359 + h->u.def.section->output_offset);
360
361 value -= input_section->output_section->vma;
362 value -= (gp - input_section->output_section->vma);
363
364 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
365
366 value += relocation->r_addend;
367
368 if ((long) value > 0x7ff || (long) value < -0x800)
369 return bfd_reloc_overflow;
370
371 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
372 mask = 0x3f03f;
373 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
374
375 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
376
377 return bfd_reloc_ok;
378 }
379
380 /* Handle an FRV ELF HI16 reloc. */
381
382 static bfd_reloc_status_type
383 elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
384 bfd *input_bfd;
385 Elf_Internal_Rela *relhi;
386 bfd_byte *contents;
387 bfd_vma value;
388 {
389 bfd_vma insn;
390
391 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
392
393 value += relhi->r_addend;
394 value = ((value >> 16) & 0xffff);
395
396 insn = (insn & 0xffff0000) | value;
397
398 if ((long) value > 0xffff || (long) value < -0x10000)
399 return bfd_reloc_overflow;
400
401 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
402 return bfd_reloc_ok;
403
404 }
405 static bfd_reloc_status_type
406 elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
407 bfd *input_bfd;
408 Elf_Internal_Rela *rello;
409 bfd_byte *contents;
410 bfd_vma value;
411 {
412 bfd_vma insn;
413
414 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
415
416 value += rello->r_addend;
417 value = value & 0xffff;
418
419 insn = (insn & 0xffff0000) | value;
420
421 if ((long) value > 0xffff || (long) value < -0x10000)
422 return bfd_reloc_overflow;
423
424 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
425 return bfd_reloc_ok;
426 }
427
428 /* Perform the relocation for the CALL label24 instruction. */
429
430 static bfd_reloc_status_type
431 elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
432 bfd *input_bfd;
433 asection *input_section;
434 Elf_Internal_Rela *rello;
435 bfd_byte *contents;
436 bfd_vma value;
437 {
438 bfd_vma insn;
439 bfd_vma label6;
440 bfd_vma label18;
441
442 /* The format for the call instruction is:
443
444 0 000000 0001111 000000000000000000
445 label6 opcode label18
446
447 The branch calculation is: pc + (4*label24)
448 where label24 is the concatenation of label6 and label18. */
449
450 /* Grab the instruction. */
451 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
452
453 value -= input_section->output_section->vma + input_section->output_offset;
454 value -= rello->r_offset;
455 value += rello->r_addend;
456
457 value = value >> 2;
458
459 label6 = value & 0xfc0000;
460 label6 = label6 << 7;
461
462 label18 = value & 0x3ffff;
463
464 insn = insn & 0x803c0000;
465 insn = insn | label6;
466 insn = insn | label18;
467
468 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
469
470 return bfd_reloc_ok;
471 }
472
473 static bfd_reloc_status_type
474 elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
475 contents, value)
476 struct bfd_link_info *info;
477 bfd *input_bfd;
478 asection *input_section;
479 Elf_Internal_Rela *relocation;
480 bfd_byte *contents;
481 bfd_vma value;
482 {
483 bfd_vma insn;
484 bfd_vma gp;
485 struct bfd_link_hash_entry *h;
486
487 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
488
489 gp = (h->u.def.value
490 + h->u.def.section->output_section->vma
491 + h->u.def.section->output_offset);
492
493 value -= input_section->output_section->vma;
494 value -= (gp - input_section->output_section->vma);
495 value += relocation->r_addend;
496 value = ((value >> 16) & 0xffff);
497
498 if ((long) value > 0xffff || (long) value < -0x10000)
499 return bfd_reloc_overflow;
500
501 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
502 insn = (insn & 0xffff0000) | value;
503
504 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
505 return bfd_reloc_ok;
506 }
507
508 static bfd_reloc_status_type
509 elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
510 contents, value)
511 struct bfd_link_info *info;
512 bfd *input_bfd;
513 asection *input_section;
514 Elf_Internal_Rela *relocation;
515 bfd_byte *contents;
516 bfd_vma value;
517 {
518 bfd_vma insn;
519 bfd_vma gp;
520 struct bfd_link_hash_entry *h;
521
522 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
523
524 gp = (h->u.def.value
525 + h->u.def.section->output_section->vma
526 + h->u.def.section->output_offset);
527
528 value -= input_section->output_section->vma;
529 value -= (gp - input_section->output_section->vma);
530 value += relocation->r_addend;
531 value = value & 0xffff;
532
533 if ((long) value > 0xffff || (long) value < -0x10000)
534 return bfd_reloc_overflow;
535
536 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
537 insn = (insn & 0xffff0000) | value;
538
539 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
540
541 return bfd_reloc_ok;
542 }
543
544 static reloc_howto_type *
545 frv_reloc_type_lookup (abfd, code)
546 bfd *abfd ATTRIBUTE_UNUSED;
547 bfd_reloc_code_real_type code;
548 {
549 switch (code)
550 {
551 default:
552 break;
553
554 case BFD_RELOC_NONE:
555 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
556
557 case BFD_RELOC_32:
558 case BFD_RELOC_CTOR:
559 return &elf32_frv_howto_table[ (int) R_FRV_32];
560
561 case BFD_RELOC_FRV_LABEL16:
562 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
563
564 case BFD_RELOC_FRV_LABEL24:
565 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
566
567 case BFD_RELOC_FRV_LO16:
568 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
569
570 case BFD_RELOC_FRV_HI16:
571 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
572
573 case BFD_RELOC_FRV_GPREL12:
574 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
575
576 case BFD_RELOC_FRV_GPRELU12:
577 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
578
579 case BFD_RELOC_FRV_GPREL32:
580 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
581
582 case BFD_RELOC_FRV_GPRELHI:
583 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
584
585 case BFD_RELOC_FRV_GPRELLO:
586 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
587
588 case BFD_RELOC_VTABLE_INHERIT:
589 return &elf32_frv_vtinherit_howto;
590
591 case BFD_RELOC_VTABLE_ENTRY:
592 return &elf32_frv_vtentry_howto;
593 }
594
595 return NULL;
596 }
597
598 /* Set the howto pointer for an FRV ELF reloc. */
599
600 static void
601 frv_info_to_howto_rela (abfd, cache_ptr, dst)
602 bfd *abfd ATTRIBUTE_UNUSED;
603 arelent *cache_ptr;
604 Elf_Internal_Rela *dst;
605 {
606 unsigned int r_type;
607
608 r_type = ELF32_R_TYPE (dst->r_info);
609 switch (r_type)
610 {
611 case R_FRV_GNU_VTINHERIT:
612 cache_ptr->howto = &elf32_frv_vtinherit_howto;
613 break;
614
615 case R_FRV_GNU_VTENTRY:
616 cache_ptr->howto = &elf32_frv_vtentry_howto;
617 break;
618
619 default:
620 cache_ptr->howto = & elf32_frv_howto_table [r_type];
621 break;
622 }
623 }
624 \f
625 /* Perform a single relocation. By default we use the standard BFD
626 routines, but a few relocs, we have to do them ourselves. */
627
628 static bfd_reloc_status_type
629 frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
630 relocation)
631 reloc_howto_type *howto;
632 bfd *input_bfd;
633 asection *input_section;
634 bfd_byte *contents;
635 Elf_Internal_Rela *rel;
636 bfd_vma relocation;
637 {
638 return _bfd_final_link_relocate (howto, input_bfd, input_section,
639 contents, rel->r_offset, relocation,
640 rel->r_addend);
641 }
642
643 \f
644 /* Relocate an FRV ELF section.
645
646 The RELOCATE_SECTION function is called by the new ELF backend linker
647 to handle the relocations for a section.
648
649 The relocs are always passed as Rela structures; if the section
650 actually uses Rel structures, the r_addend field will always be
651 zero.
652
653 This function is responsible for adjusting the section contents as
654 necessary, and (if using Rela relocs and generating a relocatable
655 output file) adjusting the reloc addend as necessary.
656
657 This function does not have to worry about setting the reloc
658 address or the reloc symbol index.
659
660 LOCAL_SYMS is a pointer to the swapped in local symbols.
661
662 LOCAL_SECTIONS is an array giving the section in the input file
663 corresponding to the st_shndx field of each local symbol.
664
665 The global hash table entry for the global symbols can be found
666 via elf_sym_hashes (input_bfd).
667
668 When generating relocatable output, this function must handle
669 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
670 going to be the section symbol corresponding to the output
671 section, which means that the addend must be adjusted
672 accordingly. */
673
674 static bfd_boolean
675 elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
676 contents, relocs, local_syms, local_sections)
677 bfd *output_bfd ATTRIBUTE_UNUSED;
678 struct bfd_link_info *info;
679 bfd *input_bfd;
680 asection *input_section;
681 bfd_byte *contents;
682 Elf_Internal_Rela *relocs;
683 Elf_Internal_Sym *local_syms;
684 asection **local_sections;
685 {
686 Elf_Internal_Shdr *symtab_hdr;
687 struct elf_link_hash_entry **sym_hashes;
688 Elf_Internal_Rela *rel;
689 Elf_Internal_Rela *relend;
690
691 if (info->relocatable)
692 return TRUE;
693
694 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
695 sym_hashes = elf_sym_hashes (input_bfd);
696 relend = relocs + input_section->reloc_count;
697
698 for (rel = relocs; rel < relend; rel ++)
699 {
700 reloc_howto_type *howto;
701 unsigned long r_symndx;
702 Elf_Internal_Sym *sym;
703 asection *sec;
704 struct elf_link_hash_entry *h;
705 bfd_vma relocation;
706 bfd_reloc_status_type r;
707 const char * name = NULL;
708 int r_type;
709
710 r_type = ELF32_R_TYPE (rel->r_info);
711
712 if ( r_type == R_FRV_GNU_VTINHERIT
713 || r_type == R_FRV_GNU_VTENTRY)
714 continue;
715
716 /* This is a final link. */
717 r_symndx = ELF32_R_SYM (rel->r_info);
718 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
719 h = NULL;
720 sym = NULL;
721 sec = NULL;
722
723 if (r_symndx < symtab_hdr->sh_info)
724 {
725 sym = local_syms + r_symndx;
726 sec = local_sections [r_symndx];
727 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
728
729 name = bfd_elf_string_from_elf_section
730 (input_bfd, symtab_hdr->sh_link, sym->st_name);
731 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
732 }
733 else
734 {
735 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
736
737 while (h->root.type == bfd_link_hash_indirect
738 || h->root.type == bfd_link_hash_warning)
739 h = (struct elf_link_hash_entry *) h->root.u.i.link;
740
741 name = h->root.root.string;
742
743 if (h->root.type == bfd_link_hash_defined
744 || h->root.type == bfd_link_hash_defweak)
745 {
746 sec = h->root.u.def.section;
747 relocation = (h->root.u.def.value
748 + sec->output_section->vma
749 + sec->output_offset);
750 }
751 else if (h->root.type == bfd_link_hash_undefweak)
752 {
753 relocation = 0;
754 }
755 else
756 {
757 if (! ((*info->callbacks->undefined_symbol)
758 (info, h->root.root.string, input_bfd,
759 input_section, rel->r_offset, TRUE)))
760 return FALSE;
761 relocation = 0;
762 }
763 }
764
765 if (r_type == R_FRV_HI16)
766 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
767
768 else if (r_type == R_FRV_LO16)
769 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
770
771 else if (r_type == R_FRV_LABEL24)
772 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
773 contents, relocation);
774
775 else if (r_type == R_FRV_GPREL12)
776 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
777 contents, relocation);
778
779 else if (r_type == R_FRV_GPRELU12)
780 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
781 contents, relocation);
782
783 else if (r_type == R_FRV_GPRELLO)
784 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
785 contents, relocation);
786
787 else if (r_type == R_FRV_GPRELHI)
788 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
789 contents, relocation);
790
791 else
792 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
793 rel, relocation);
794
795 if (r != bfd_reloc_ok)
796 {
797 const char * msg = (const char *) NULL;
798
799 switch (r)
800 {
801 case bfd_reloc_overflow:
802 r = info->callbacks->reloc_overflow
803 (info, name, howto->name, (bfd_vma) 0,
804 input_bfd, input_section, rel->r_offset);
805 break;
806
807 case bfd_reloc_undefined:
808 r = info->callbacks->undefined_symbol
809 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
810 break;
811
812 case bfd_reloc_outofrange:
813 msg = _("internal error: out of range error");
814 break;
815
816 case bfd_reloc_notsupported:
817 msg = _("internal error: unsupported relocation error");
818 break;
819
820 case bfd_reloc_dangerous:
821 msg = _("internal error: dangerous relocation");
822 break;
823
824 default:
825 msg = _("internal error: unknown error");
826 break;
827 }
828
829 if (msg)
830 r = info->callbacks->warning
831 (info, msg, name, input_bfd, input_section, rel->r_offset);
832
833 if (! r)
834 return FALSE;
835 }
836 }
837
838 return TRUE;
839 }
840 \f
841 /* Return the section that should be marked against GC for a given
842 relocation. */
843
844 static asection *
845 elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
846 asection *sec;
847 struct bfd_link_info *info ATTRIBUTE_UNUSED;
848 Elf_Internal_Rela *rel;
849 struct elf_link_hash_entry *h;
850 Elf_Internal_Sym *sym;
851 {
852 if (h != NULL)
853 {
854 switch (ELF32_R_TYPE (rel->r_info))
855 {
856 case R_FRV_GNU_VTINHERIT:
857 case R_FRV_GNU_VTENTRY:
858 break;
859
860 default:
861 switch (h->root.type)
862 {
863 default:
864 break;
865
866 case bfd_link_hash_defined:
867 case bfd_link_hash_defweak:
868 return h->root.u.def.section;
869
870 case bfd_link_hash_common:
871 return h->root.u.c.p->section;
872 }
873 }
874 }
875 else
876 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
877
878 return NULL;
879 }
880
881 /* Update the got entry reference counts for the section being removed. */
882
883 static bfd_boolean
884 elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
885 bfd *abfd ATTRIBUTE_UNUSED;
886 struct bfd_link_info *info ATTRIBUTE_UNUSED;
887 asection *sec ATTRIBUTE_UNUSED;
888 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
889 {
890 return TRUE;
891 }
892
893 \f
894 /* Hook called by the linker routine which adds symbols from an object
895 file. We use it to put .comm items in .scomm, and not .comm. */
896
897 static bfd_boolean
898 elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
899 bfd *abfd;
900 struct bfd_link_info *info;
901 const Elf_Internal_Sym *sym;
902 const char **namep ATTRIBUTE_UNUSED;
903 flagword *flagsp ATTRIBUTE_UNUSED;
904 asection **secp;
905 bfd_vma *valp;
906 {
907 if (sym->st_shndx == SHN_COMMON
908 && !info->relocatable
909 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
910 {
911 /* Common symbols less than or equal to -G nn bytes are
912 automatically put into .sbss. */
913
914 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
915
916 if (scomm == NULL)
917 {
918 scomm = bfd_make_section (abfd, ".scommon");
919 if (scomm == NULL
920 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
921 | SEC_IS_COMMON
922 | SEC_LINKER_CREATED)))
923 return FALSE;
924 }
925
926 *secp = scomm;
927 *valp = sym->st_size;
928 }
929
930 return TRUE;
931 }
932 /* Look through the relocs for a section during the first phase.
933 Since we don't do .gots or .plts, we just need to consider the
934 virtual table relocs for gc. */
935
936 static bfd_boolean
937 elf32_frv_check_relocs (abfd, info, sec, relocs)
938 bfd *abfd;
939 struct bfd_link_info *info;
940 asection *sec;
941 const Elf_Internal_Rela *relocs;
942 {
943 Elf_Internal_Shdr *symtab_hdr;
944 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
945 const Elf_Internal_Rela *rel;
946 const Elf_Internal_Rela *rel_end;
947
948 if (info->relocatable)
949 return TRUE;
950
951 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
952 sym_hashes = elf_sym_hashes (abfd);
953 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
954 if (!elf_bad_symtab (abfd))
955 sym_hashes_end -= symtab_hdr->sh_info;
956
957 rel_end = relocs + sec->reloc_count;
958 for (rel = relocs; rel < rel_end; rel++)
959 {
960 struct elf_link_hash_entry *h;
961 unsigned long r_symndx;
962
963 r_symndx = ELF32_R_SYM (rel->r_info);
964 if (r_symndx < symtab_hdr->sh_info)
965 h = NULL;
966 else
967 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
968
969 switch (ELF32_R_TYPE (rel->r_info))
970 {
971 /* This relocation describes the C++ object vtable hierarchy.
972 Reconstruct it for later use during GC. */
973 case R_FRV_GNU_VTINHERIT:
974 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
975 return FALSE;
976 break;
977
978 /* This relocation describes which C++ vtable entries are actually
979 used. Record for later use during GC. */
980 case R_FRV_GNU_VTENTRY:
981 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
982 return FALSE;
983 break;
984 }
985 }
986
987 return TRUE;
988 }
989
990 \f
991 /* Return the machine subcode from the ELF e_flags header. */
992
993 static int
994 elf32_frv_machine (abfd)
995 bfd *abfd;
996 {
997 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
998 {
999 default: break;
1000 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
1001 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
1002 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
1003 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
1004 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
1005 }
1006
1007 return bfd_mach_frv;
1008 }
1009
1010 /* Set the right machine number for a FRV ELF file. */
1011
1012 static bfd_boolean
1013 elf32_frv_object_p (abfd)
1014 bfd *abfd;
1015 {
1016 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
1017 return TRUE;
1018 }
1019 \f
1020 /* Function to set the ELF flag bits. */
1021
1022 static bfd_boolean
1023 frv_elf_set_private_flags (abfd, flags)
1024 bfd *abfd;
1025 flagword flags;
1026 {
1027 elf_elfheader (abfd)->e_flags = flags;
1028 elf_flags_init (abfd) = TRUE;
1029 return TRUE;
1030 }
1031
1032 /* Copy backend specific data from one object module to another. */
1033
1034 static bfd_boolean
1035 frv_elf_copy_private_bfd_data (ibfd, obfd)
1036 bfd *ibfd;
1037 bfd *obfd;
1038 {
1039 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1040 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1041 return TRUE;
1042
1043 BFD_ASSERT (!elf_flags_init (obfd)
1044 || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
1045
1046 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
1047 elf_flags_init (obfd) = TRUE;
1048 return TRUE;
1049 }
1050
1051 /* Merge backend specific data from an object file to the output
1052 object file when linking. */
1053
1054 static bfd_boolean
1055 frv_elf_merge_private_bfd_data (ibfd, obfd)
1056 bfd *ibfd;
1057 bfd *obfd;
1058 {
1059 flagword old_flags, old_partial;
1060 flagword new_flags, new_partial;
1061 bfd_boolean error = FALSE;
1062 char new_opt[80];
1063 char old_opt[80];
1064
1065 new_opt[0] = old_opt[0] = '\0';
1066 new_flags = elf_elfheader (ibfd)->e_flags;
1067 old_flags = elf_elfheader (obfd)->e_flags;
1068
1069 #ifdef DEBUG
1070 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
1071 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
1072 bfd_get_filename (ibfd));
1073 #endif
1074
1075 if (!elf_flags_init (obfd)) /* First call, no flags set. */
1076 {
1077 elf_flags_init (obfd) = TRUE;
1078 old_flags = new_flags;
1079 }
1080
1081 else if (new_flags == old_flags) /* Compatible flags are ok. */
1082 ;
1083
1084 else /* Possibly incompatible flags. */
1085 {
1086 /* Warn if different # of gprs are used. Note, 0 means nothing is
1087 said about the size of gprs. */
1088 new_partial = (new_flags & EF_FRV_GPR_MASK);
1089 old_partial = (old_flags & EF_FRV_GPR_MASK);
1090 if (new_partial == old_partial)
1091 ;
1092
1093 else if (new_partial == 0)
1094 ;
1095
1096 else if (old_partial == 0)
1097 old_flags |= new_partial;
1098
1099 else
1100 {
1101 switch (new_partial)
1102 {
1103 default: strcat (new_opt, " -mgpr-??"); break;
1104 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
1105 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
1106 }
1107
1108 switch (old_partial)
1109 {
1110 default: strcat (old_opt, " -mgpr-??"); break;
1111 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
1112 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
1113 }
1114 }
1115
1116 /* Warn if different # of fprs are used. Note, 0 means nothing is
1117 said about the size of fprs. */
1118 new_partial = (new_flags & EF_FRV_FPR_MASK);
1119 old_partial = (old_flags & EF_FRV_FPR_MASK);
1120 if (new_partial == old_partial)
1121 ;
1122
1123 else if (new_partial == 0)
1124 ;
1125
1126 else if (old_partial == 0)
1127 old_flags |= new_partial;
1128
1129 else
1130 {
1131 switch (new_partial)
1132 {
1133 default: strcat (new_opt, " -mfpr-?"); break;
1134 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
1135 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
1136 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
1137 }
1138
1139 switch (old_partial)
1140 {
1141 default: strcat (old_opt, " -mfpr-?"); break;
1142 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
1143 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
1144 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
1145 }
1146 }
1147
1148 /* Warn if different dword support was used. Note, 0 means nothing is
1149 said about the dword support. */
1150 new_partial = (new_flags & EF_FRV_DWORD_MASK);
1151 old_partial = (old_flags & EF_FRV_DWORD_MASK);
1152 if (new_partial == old_partial)
1153 ;
1154
1155 else if (new_partial == 0)
1156 ;
1157
1158 else if (old_partial == 0)
1159 old_flags |= new_partial;
1160
1161 else
1162 {
1163 switch (new_partial)
1164 {
1165 default: strcat (new_opt, " -mdword-?"); break;
1166 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
1167 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
1168 }
1169
1170 switch (old_partial)
1171 {
1172 default: strcat (old_opt, " -mdword-?"); break;
1173 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
1174 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
1175 }
1176 }
1177
1178 /* Or in flags that accumulate (ie, if one module uses it, mark that the
1179 feature is used. */
1180 old_flags |= new_flags & (EF_FRV_DOUBLE
1181 | EF_FRV_MEDIA
1182 | EF_FRV_MULADD
1183 | EF_FRV_NON_PIC_RELOCS);
1184
1185 /* If any module was compiled without -G0, clear the G0 bit. */
1186 old_flags = ((old_flags & ~ EF_FRV_G0)
1187 | (old_flags & new_flags & EF_FRV_G0));
1188
1189 /* If any module was compiled without -mnopack, clear the mnopack bit. */
1190 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
1191 | (old_flags & new_flags & EF_FRV_NOPACK));
1192
1193 /* We don't have to do anything if the pic flags are the same, or the new
1194 module(s) were compiled with -mlibrary-pic. */
1195 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
1196 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
1197 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
1198 ;
1199
1200 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
1201 flags if any from the new module. */
1202 else if ((old_partial & EF_FRV_LIBPIC) != 0)
1203 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
1204
1205 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
1206 else if (new_partial != 0 && old_partial != 0)
1207 old_flags |= new_partial;
1208
1209 /* One module was compiled for pic and the other was not, see if we have
1210 had any relocations that are not pic-safe. */
1211 else
1212 {
1213 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
1214 old_flags |= new_partial;
1215 else
1216 {
1217 old_flags &= ~ EF_FRV_PIC_FLAGS;
1218 #ifndef FRV_NO_PIC_ERROR
1219 error = TRUE;
1220 (*_bfd_error_handler)
1221 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
1222 bfd_get_filename (ibfd),
1223 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
1224 #endif
1225 }
1226 }
1227
1228 /* Warn if different cpu is used (allow a specific cpu to override
1229 the generic cpu). */
1230 new_partial = (new_flags & EF_FRV_CPU_MASK);
1231 old_partial = (old_flags & EF_FRV_CPU_MASK);
1232 if (new_partial == old_partial)
1233 ;
1234
1235 else if (new_partial == EF_FRV_CPU_GENERIC)
1236 ;
1237
1238 else if (old_partial == EF_FRV_CPU_GENERIC)
1239 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
1240
1241 else
1242 {
1243 switch (new_partial)
1244 {
1245 default: strcat (new_opt, " -mcpu=?"); break;
1246 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
1247 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
1248 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
1249 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
1250 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
1251 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
1252 }
1253
1254 switch (old_partial)
1255 {
1256 default: strcat (old_opt, " -mcpu=?"); break;
1257 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
1258 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
1259 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
1260 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
1261 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
1262 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
1263 }
1264 }
1265
1266 /* Print out any mismatches from above. */
1267 if (new_opt[0])
1268 {
1269 error = TRUE;
1270 (*_bfd_error_handler)
1271 (_("%s: compiled with %s and linked with modules compiled with %s"),
1272 bfd_get_filename (ibfd), new_opt, old_opt);
1273 }
1274
1275 /* Warn about any other mismatches */
1276 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
1277 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
1278 if (new_partial != old_partial)
1279 {
1280 old_flags |= new_partial;
1281 error = TRUE;
1282 (*_bfd_error_handler)
1283 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
1284 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
1285 }
1286 }
1287
1288 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
1289 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
1290 old_flags |= EF_FRV_NOPACK;
1291
1292 /* Update the old flags now with changes made above. */
1293 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
1294 elf_elfheader (obfd)->e_flags = old_flags;
1295 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
1296 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
1297
1298 if (error)
1299 bfd_set_error (bfd_error_bad_value);
1300
1301 return !error;
1302 }
1303
1304 \f
1305 bfd_boolean
1306 frv_elf_print_private_bfd_data (abfd, ptr)
1307 bfd *abfd;
1308 PTR ptr;
1309 {
1310 FILE *file = (FILE *) ptr;
1311 flagword flags;
1312
1313 BFD_ASSERT (abfd != NULL && ptr != NULL);
1314
1315 /* Print normal ELF private data. */
1316 _bfd_elf_print_private_bfd_data (abfd, ptr);
1317
1318 flags = elf_elfheader (abfd)->e_flags;
1319 fprintf (file, _("private flags = 0x%lx:"), (long)flags);
1320
1321 switch (flags & EF_FRV_CPU_MASK)
1322 {
1323 default: break;
1324 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
1325 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
1326 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
1327 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
1328 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
1329 }
1330
1331 switch (flags & EF_FRV_GPR_MASK)
1332 {
1333 default: break;
1334 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
1335 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
1336 }
1337
1338 switch (flags & EF_FRV_FPR_MASK)
1339 {
1340 default: break;
1341 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
1342 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
1343 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
1344 }
1345
1346 switch (flags & EF_FRV_DWORD_MASK)
1347 {
1348 default: break;
1349 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
1350 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
1351 }
1352
1353 if (flags & EF_FRV_DOUBLE)
1354 fprintf (file, " -mdouble");
1355
1356 if (flags & EF_FRV_MEDIA)
1357 fprintf (file, " -mmedia");
1358
1359 if (flags & EF_FRV_MULADD)
1360 fprintf (file, " -mmuladd");
1361
1362 if (flags & EF_FRV_PIC)
1363 fprintf (file, " -fpic");
1364
1365 if (flags & EF_FRV_BIGPIC)
1366 fprintf (file, " -fPIC");
1367
1368 if (flags & EF_FRV_NON_PIC_RELOCS)
1369 fprintf (file, " non-pic relocations");
1370
1371 if (flags & EF_FRV_G0)
1372 fprintf (file, " -G0");
1373
1374 fputc ('\n', file);
1375 return TRUE;
1376 }
1377
1378 \f
1379 #define ELF_ARCH bfd_arch_frv
1380 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
1381 #define ELF_MAXPAGESIZE 0x1000
1382
1383 #define TARGET_BIG_SYM bfd_elf32_frv_vec
1384 #define TARGET_BIG_NAME "elf32-frv"
1385
1386 #define elf_info_to_howto_rel NULL
1387 #define elf_info_to_howto frv_info_to_howto_rela
1388 #define elf_backend_relocate_section elf32_frv_relocate_section
1389 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
1390 #define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
1391 #define elf_backend_check_relocs elf32_frv_check_relocs
1392 #define elf_backend_object_p elf32_frv_object_p
1393 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
1394
1395 #define elf_backend_can_gc_sections 1
1396 #define elf_backend_rela_normal 1
1397
1398 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
1399 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
1400 #define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
1401 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
1402 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
1403
1404 #include "elf32-target.h"
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