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V850/BFD: Call `_bfd_elf_copy_private_bfd_data' again
[deliverable/binutils-gdb.git] / bfd / elf32-v850.c
1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2016 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
23 dependencies. As is the gas & simulator code for the v850. */
24
25 #include "sysdep.h"
26 #include "bfd.h"
27 #include "bfdlink.h"
28 #include "libbfd.h"
29 #include "elf-bfd.h"
30 #include "elf/v850.h"
31 #include "libiberty.h"
32
33 /* Sign-extend a 17-bit number. */
34 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
35
36 /* Sign-extend a 22-bit number. */
37 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
38
39 static reloc_howto_type v850_elf_howto_table[];
40
41 /* Look through the relocs for a section during the first phase, and
42 allocate space in the global offset table or procedure linkage
43 table. */
44
45 static bfd_boolean
46 v850_elf_check_relocs (bfd *abfd,
47 struct bfd_link_info *info,
48 asection *sec,
49 const Elf_Internal_Rela *relocs)
50 {
51 bfd_boolean ret = TRUE;
52 Elf_Internal_Shdr *symtab_hdr;
53 struct elf_link_hash_entry **sym_hashes;
54 const Elf_Internal_Rela *rel;
55 const Elf_Internal_Rela *rel_end;
56 unsigned int r_type;
57 int other = 0;
58 const char *common = NULL;
59
60 if (bfd_link_relocatable (info))
61 return TRUE;
62
63 #ifdef DEBUG
64 _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B",
65 sec, abfd);
66 #endif
67
68 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
69 sym_hashes = elf_sym_hashes (abfd);
70
71 rel_end = relocs + sec->reloc_count;
72 for (rel = relocs; rel < rel_end; rel++)
73 {
74 unsigned long r_symndx;
75 struct elf_link_hash_entry *h;
76
77 r_symndx = ELF32_R_SYM (rel->r_info);
78 if (r_symndx < symtab_hdr->sh_info)
79 h = NULL;
80 else
81 {
82 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
83 while (h->root.type == bfd_link_hash_indirect
84 || h->root.type == bfd_link_hash_warning)
85 h = (struct elf_link_hash_entry *) h->root.u.i.link;
86
87 /* PR15323, ref flags aren't set for references in the same
88 object. */
89 h->root.non_ir_ref = 1;
90 }
91
92 r_type = ELF32_R_TYPE (rel->r_info);
93 switch (r_type)
94 {
95 default:
96 break;
97
98 /* This relocation describes the C++ object vtable hierarchy.
99 Reconstruct it for later use during GC. */
100 case R_V850_GNU_VTINHERIT:
101 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
102 return FALSE;
103 break;
104
105 /* This relocation describes which C++ vtable entries
106 are actually used. Record for later use during GC. */
107 case R_V850_GNU_VTENTRY:
108 BFD_ASSERT (h != NULL);
109 if (h != NULL
110 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
111 return FALSE;
112 break;
113
114 case R_V850_SDA_16_16_SPLIT_OFFSET:
115 case R_V850_SDA_16_16_OFFSET:
116 case R_V850_SDA_15_16_OFFSET:
117 case R_V810_GPWLO_1:
118 case R_V850_HWLO:
119 case R_V850_HWLO_1:
120 other = V850_OTHER_SDA;
121 common = ".scommon";
122 goto small_data_common;
123
124 case R_V850_ZDA_16_16_SPLIT_OFFSET:
125 case R_V850_ZDA_16_16_OFFSET:
126 case R_V850_ZDA_15_16_OFFSET:
127 other = V850_OTHER_ZDA;
128 common = ".zcommon";
129 goto small_data_common;
130
131 case R_V850_TDA_4_4_OFFSET:
132 case R_V850_TDA_4_5_OFFSET:
133 case R_V850_TDA_7_7_OFFSET:
134 case R_V850_TDA_6_8_OFFSET:
135 case R_V850_TDA_7_8_OFFSET:
136 case R_V850_TDA_16_16_OFFSET:
137 other = V850_OTHER_TDA;
138 common = ".tcommon";
139 /* fall through */
140
141 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
142
143 small_data_common:
144 if (h)
145 {
146 /* Flag which type of relocation was used. */
147 h->other |= other;
148 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
149 && (h->other & V850_OTHER_ERROR) == 0)
150 {
151 const char * msg;
152 static char buff[200]; /* XXX */
153
154 switch (h->other & V850_OTHER_MASK)
155 {
156 default:
157 msg = _("Variable `%s' cannot occupy in multiple small data regions");
158 break;
159 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
160 msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
161 break;
162 case V850_OTHER_SDA | V850_OTHER_ZDA:
163 msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
164 break;
165 case V850_OTHER_SDA | V850_OTHER_TDA:
166 msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
167 break;
168 case V850_OTHER_ZDA | V850_OTHER_TDA:
169 msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
170 break;
171 }
172
173 sprintf (buff, msg, h->root.root.string);
174 info->callbacks->warning (info, buff, h->root.root.string,
175 abfd, h->root.u.def.section,
176 (bfd_vma) 0);
177
178 bfd_set_error (bfd_error_bad_value);
179 h->other |= V850_OTHER_ERROR;
180 ret = FALSE;
181 }
182 }
183
184 if (h && h->root.type == bfd_link_hash_common
185 && h->root.u.c.p
186 && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
187 {
188 asection * section;
189
190 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
191 section->flags |= SEC_IS_COMMON;
192 }
193
194 #ifdef DEBUG
195 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
196 v850_elf_howto_table[ (int)r_type ].name,
197 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
198 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
199 #endif
200 break;
201 }
202 }
203
204 return ret;
205 }
206
207 /* In the old version, when an entry was checked out from the table,
208 it was deleted. This produced an error if the entry was needed
209 more than once, as the second attempted retry failed.
210
211 In the current version, the entry is not deleted, instead we set
212 the field 'found' to TRUE. If a second lookup matches the same
213 entry, then we know that the hi16s reloc has already been updated
214 and does not need to be updated a second time.
215
216 TODO - TOFIX: If it is possible that we need to restore 2 different
217 addresses from the same table entry, where the first generates an
218 overflow, whilst the second do not, then this code will fail. */
219
220 typedef struct hi16s_location
221 {
222 bfd_vma addend;
223 bfd_byte * address;
224 unsigned long counter;
225 bfd_boolean found;
226 struct hi16s_location * next;
227 }
228 hi16s_location;
229
230 static hi16s_location * previous_hi16s;
231 static hi16s_location * free_hi16s;
232 static unsigned long hi16s_counter;
233
234 static void
235 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
236 {
237 hi16s_location * entry = NULL;
238 bfd_size_type amt = sizeof (* free_hi16s);
239
240 /* Find a free structure. */
241 if (free_hi16s == NULL)
242 free_hi16s = bfd_zalloc (abfd, amt);
243
244 entry = free_hi16s;
245 free_hi16s = free_hi16s->next;
246
247 entry->addend = addend;
248 entry->address = address;
249 entry->counter = hi16s_counter ++;
250 entry->found = FALSE;
251 entry->next = previous_hi16s;
252 previous_hi16s = entry;
253
254 /* Cope with wrap around of our counter. */
255 if (hi16s_counter == 0)
256 {
257 /* XXX: Assume that all counter entries differ only in their low 16 bits. */
258 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
259 entry->counter &= 0xffff;
260
261 hi16s_counter = 0x10000;
262 }
263 }
264
265 static bfd_byte *
266 find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found)
267 {
268 hi16s_location *match = NULL;
269 hi16s_location *entry;
270 bfd_byte *addr;
271
272 /* Search the table. Record the most recent entry that matches. */
273 for (entry = previous_hi16s; entry; entry = entry->next)
274 {
275 if (entry->addend == addend
276 && (match == NULL || match->counter < entry->counter))
277 {
278 match = entry;
279 }
280 }
281
282 if (match == NULL)
283 return NULL;
284
285 /* Extract the address. */
286 addr = match->address;
287
288 /* Remember if this entry has already been used before. */
289 if (already_found)
290 * already_found = match->found;
291
292 /* Note that this entry has now been used. */
293 match->found = TRUE;
294
295 return addr;
296 }
297
298 /* Calculate the final operand value for a R_V850_LO16 or
299 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
300 ADDEND is the sum of the relocation symbol and offset. Store the
301 operand value in *INSN and return true on success.
302
303 The assembler has already done some of this: If the value stored in
304 the instruction has its 15th bit set, (counting from zero) then the
305 assembler will have added 1 to the value stored in the associated
306 HI16S reloc. So for example, these relocations:
307
308 movhi hi( fred ), r0, r1
309 movea lo( fred ), r1, r1
310
311 will store 0 in the value fields for the MOVHI and MOVEA instructions
312 and addend will be the address of fred, but for these instructions:
313
314 movhi hi( fred + 0x123456 ), r0, r1
315 movea lo( fred + 0x123456 ), r1, r1
316
317 the value stored in the MOVHI instruction will be 0x12 and the value
318 stored in the MOVEA instruction will be 0x3456. If however the
319 instructions were:
320
321 movhi hi( fred + 0x10ffff ), r0, r1
322 movea lo( fred + 0x10ffff ), r1, r1
323
324 then the value stored in the MOVHI instruction would be 0x11 (not
325 0x10) and the value stored in the MOVEA instruction would be 0xffff.
326 Thus (assuming for the moment that the addend is 0), at run time the
327 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
328 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
329 the instructions were:
330
331 movhi hi( fred - 1 ), r0, r1
332 movea lo( fred - 1 ), r1, r1
333
334 then 0 is stored in the MOVHI instruction and -1 is stored in the
335 MOVEA instruction.
336
337 Overflow can occur if the addition of the value stored in the
338 instruction plus the addend sets the 15th bit when before it was clear.
339 This is because the 15th bit will be sign extended into the high part,
340 thus reducing its value by one, but since the 15th bit was originally
341 clear, the assembler will not have added 1 to the previous HI16S reloc
342 to compensate for this effect. For example:
343
344 movhi hi( fred + 0x123456 ), r0, r1
345 movea lo( fred + 0x123456 ), r1, r1
346
347 The value stored in HI16S reloc is 0x12, the value stored in the LO16
348 reloc is 0x3456. If we assume that the address of fred is 0x00007000
349 then the relocations become:
350
351 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
352 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
353
354 but when the instructions are executed, the MOVEA instruction's value
355 is signed extended, so the sum becomes:
356
357 0x00120000
358 + 0xffffa456
359 ------------
360 0x0011a456 but 'fred + 0x123456' = 0x0012a456
361
362 Note that if the 15th bit was set in the value stored in the LO16
363 reloc, then we do not have to do anything:
364
365 movhi hi( fred + 0x10ffff ), r0, r1
366 movea lo( fred + 0x10ffff ), r1, r1
367
368 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
369 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
370
371 0x00110000
372 + 0x00006fff
373 ------------
374 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
375
376 Overflow can also occur if the computation carries into the 16th bit
377 and it also results in the 15th bit having the same value as the 15th
378 bit of the original value. What happens is that the HI16S reloc
379 will have already examined the 15th bit of the original value and
380 added 1 to the high part if the bit is set. This compensates for the
381 sign extension of 15th bit of the result of the computation. But now
382 there is a carry into the 16th bit, and this has not been allowed for.
383
384 So, for example if fred is at address 0xf000:
385
386 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
387 movea lo( fred + 0xffff ), r1, r1
388
389 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
390 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
391
392 0x00010000
393 + 0xffffefff
394 ------------
395 0x0000efff but 'fred + 0xffff' = 0x0001efff
396
397 Similarly, if the 15th bit remains clear, but overflow occurs into
398 the 16th bit then (assuming the address of fred is 0xf000):
399
400 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
401 movea lo( fred + 0x7000 ), r1, r1
402
403 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
404 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
405
406 0x00000000
407 + 0x00006fff
408 ------------
409 0x00006fff but 'fred + 0x7000' = 0x00016fff
410
411 Note - there is no need to change anything if a carry occurs, and the
412 15th bit changes its value from being set to being clear, as the HI16S
413 reloc will have already added in 1 to the high part for us:
414
415 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
416 movea lo( fred + 0xffff ), r1, r1
417
418 HI16S: 0x0001 + (0x00007000 >> 16)
419 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
420
421 0x00010000
422 + 0x00006fff (bit 15 not set, so the top half is zero)
423 ------------
424 0x00016fff which is right (assuming that fred is at 0x7000)
425
426 but if the 15th bit goes from being clear to being set, then we must
427 once again handle overflow:
428
429 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
430 movea lo( fred + 0x7000 ), r1, r1
431
432 HI16S: 0x0000 + (0x0000ffff >> 16)
433 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
434
435 0x00000000
436 + 0x00006fff (bit 15 not set, so the top half is zero)
437 ------------
438 0x00006fff which is wrong (assuming that fred is at 0xffff). */
439
440 static bfd_boolean
441 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
442 unsigned long addend)
443 {
444 #define BIT15_SET(x) ((x) & 0x8000)
445 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
446
447 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
448 || (OVERFLOWS (addend, *insn)
449 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
450 {
451 bfd_boolean already_updated;
452 bfd_byte *hi16s_address = find_remembered_hi16s_reloc
453 (addend, & already_updated);
454
455 /* Amend the matching HI16_S relocation. */
456 if (hi16s_address != NULL)
457 {
458 if (! already_updated)
459 {
460 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
461 hi_insn += 1;
462 bfd_put_16 (abfd, hi_insn, hi16s_address);
463 }
464 }
465 else
466 {
467 (*_bfd_error_handler) (_("FAILED to find previous HI16 reloc"));
468 return FALSE;
469 }
470 }
471 #undef OVERFLOWS
472 #undef BIT15_SET
473
474 /* Do not complain if value has top bit set, as this has been
475 anticipated. */
476 *insn = (*insn + addend) & 0xffff;
477 return TRUE;
478 }
479
480 /* FIXME: The code here probably ought to be removed and the code in reloc.c
481 allowed to do its stuff instead. At least for most of the relocs, anyway. */
482
483 static bfd_reloc_status_type
484 v850_elf_perform_relocation (bfd *abfd,
485 unsigned int r_type,
486 bfd_vma addend,
487 bfd_byte *address)
488 {
489 unsigned long insn;
490 unsigned long result;
491 bfd_signed_vma saddend = (bfd_signed_vma) addend;
492
493 switch (r_type)
494 {
495 default:
496 #ifdef DEBUG
497 fprintf (stderr, "%B: reloc number %d not recognised\n", abfd, r_type);
498 #endif
499 return bfd_reloc_notsupported;
500
501 case R_V850_REL32:
502 case R_V850_ABS32:
503 case R_V810_WORD:
504 case R_V850_PC32:
505 bfd_put_32 (abfd, addend, address);
506 return bfd_reloc_ok;
507
508 case R_V850_WLO23:
509 case R_V850_23:
510 insn = bfd_get_32 (abfd, address);
511 insn &= ~((0x7f << 4) | (0x7fff80 << (16-7)));
512 insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7));
513 bfd_put_32 (abfd, (bfd_vma) insn, address);
514 return bfd_reloc_ok;
515
516 case R_V850_PCR22:
517 case R_V850_22_PCREL:
518 if (saddend > 0x1fffff || saddend < -0x200000)
519 return bfd_reloc_overflow;
520
521 if ((addend % 2) != 0)
522 return bfd_reloc_dangerous;
523
524 insn = bfd_get_32 (abfd, address);
525 insn &= ~0xfffe003f;
526 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
527 bfd_put_32 (abfd, (bfd_vma) insn, address);
528 return bfd_reloc_ok;
529
530 case R_V850_PC17:
531 case R_V850_17_PCREL:
532 if (saddend > 0xffff || saddend < -0x10000)
533 return bfd_reloc_overflow;
534
535 if ((addend % 2) != 0)
536 return bfd_reloc_dangerous;
537
538 insn = bfd_get_32 (abfd, address);
539 insn &= ~ 0xfffe0010;
540 insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4));
541 break;
542
543 case R_V850_PC16U:
544 case R_V850_16_PCREL:
545 if ((saddend < -0xffff) || (saddend > 0))
546 return bfd_reloc_overflow;
547
548 if ((addend % 2) != 0)
549 return bfd_reloc_dangerous;
550
551 insn = bfd_get_16 (abfd, address);
552 insn &= ~0xfffe;
553 insn |= (-addend & 0xfffe);
554 break;
555
556 case R_V850_PC9:
557 case R_V850_9_PCREL:
558 if (saddend > 0xff || saddend < -0x100)
559 return bfd_reloc_overflow;
560
561 if ((addend % 2) != 0)
562 return bfd_reloc_dangerous;
563
564 insn = bfd_get_16 (abfd, address);
565 insn &= ~ 0xf870;
566 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
567 break;
568
569 case R_V810_WHI:
570 case R_V850_HI16:
571 addend += (bfd_get_16 (abfd, address) << 16);
572 addend = (addend >> 16);
573 insn = addend;
574 break;
575
576 case R_V810_WHI1:
577 case R_V850_HI16_S:
578 /* Remember where this relocation took place. */
579 remember_hi16s_reloc (abfd, addend, address);
580
581 addend += (bfd_get_16 (abfd, address) << 16);
582 addend = (addend >> 16) + ((addend & 0x8000) != 0);
583
584 /* This relocation cannot overflow. */
585 if (addend > 0xffff)
586 addend = 0;
587
588 insn = addend;
589 break;
590
591 case R_V810_WLO:
592 case R_V850_LO16:
593 insn = bfd_get_16 (abfd, address);
594 if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
595 return bfd_reloc_overflow;
596 break;
597
598 case R_V810_BYTE:
599 case R_V850_8:
600 addend += (char) bfd_get_8 (abfd, address);
601
602 saddend = (bfd_signed_vma) addend;
603
604 if (saddend > 0x7f || saddend < -0x80)
605 return bfd_reloc_overflow;
606
607 bfd_put_8 (abfd, addend, address);
608 return bfd_reloc_ok;
609
610 case R_V850_CALLT_16_16_OFFSET:
611 addend += bfd_get_16 (abfd, address);
612
613 saddend = (bfd_signed_vma) addend;
614
615 if (saddend > 0xffff || saddend < 0)
616 return bfd_reloc_overflow;
617
618 insn = addend;
619 break;
620
621 case R_V850_CALLT_15_16_OFFSET:
622 insn = bfd_get_16 (abfd, address);
623
624 addend += insn & 0xfffe;
625
626 saddend = (bfd_signed_vma) addend;
627
628 if (saddend > 0xffff || saddend < 0)
629 return bfd_reloc_overflow;
630
631 insn = (0xfffe & addend)
632 | (insn & ~0xfffe);
633 break;
634
635 case R_V850_CALLT_6_7_OFFSET:
636 insn = bfd_get_16 (abfd, address);
637 addend += ((insn & 0x3f) << 1);
638
639 saddend = (bfd_signed_vma) addend;
640
641 if (saddend > 0x7e || saddend < 0)
642 return bfd_reloc_overflow;
643
644 if (addend & 1)
645 return bfd_reloc_dangerous;
646
647 insn &= 0xff80;
648 insn |= (addend >> 1);
649 break;
650
651 case R_V850_16:
652 case R_V810_HWORD:
653 case R_V850_SDA_16_16_OFFSET:
654 case R_V850_ZDA_16_16_OFFSET:
655 case R_V850_TDA_16_16_OFFSET:
656 addend += bfd_get_16 (abfd, address);
657
658 saddend = (bfd_signed_vma) addend;
659
660 if (saddend > 0x7fff || saddend < -0x8000)
661 return bfd_reloc_overflow;
662
663 insn = addend;
664 break;
665
666 case R_V850_16_S1:
667 case R_V850_SDA_15_16_OFFSET:
668 case R_V850_ZDA_15_16_OFFSET:
669 case R_V810_GPWLO_1:
670 insn = bfd_get_16 (abfd, address);
671 addend += (insn & 0xfffe);
672
673 saddend = (bfd_signed_vma) addend;
674
675 if (saddend > 0x7ffe || saddend < -0x8000)
676 return bfd_reloc_overflow;
677
678 if (addend & 1)
679 return bfd_reloc_dangerous;
680
681 insn = (addend &~ (bfd_vma) 1) | (insn & 1);
682 break;
683
684 case R_V850_TDA_6_8_OFFSET:
685 insn = bfd_get_16 (abfd, address);
686 addend += ((insn & 0x7e) << 1);
687
688 saddend = (bfd_signed_vma) addend;
689
690 if (saddend > 0xfc || saddend < 0)
691 return bfd_reloc_overflow;
692
693 if (addend & 3)
694 return bfd_reloc_dangerous;
695
696 insn &= 0xff81;
697 insn |= (addend >> 1);
698 break;
699
700 case R_V850_TDA_7_8_OFFSET:
701 insn = bfd_get_16 (abfd, address);
702 addend += ((insn & 0x7f) << 1);
703
704 saddend = (bfd_signed_vma) addend;
705
706 if (saddend > 0xfe || saddend < 0)
707 return bfd_reloc_overflow;
708
709 if (addend & 1)
710 return bfd_reloc_dangerous;
711
712 insn &= 0xff80;
713 insn |= (addend >> 1);
714 break;
715
716 case R_V850_TDA_7_7_OFFSET:
717 insn = bfd_get_16 (abfd, address);
718 addend += insn & 0x7f;
719
720 saddend = (bfd_signed_vma) addend;
721
722 if (saddend > 0x7f || saddend < 0)
723 return bfd_reloc_overflow;
724
725 insn &= 0xff80;
726 insn |= addend;
727 break;
728
729 case R_V850_TDA_4_5_OFFSET:
730 insn = bfd_get_16 (abfd, address);
731 addend += ((insn & 0xf) << 1);
732
733 saddend = (bfd_signed_vma) addend;
734
735 if (saddend > 0x1e || saddend < 0)
736 return bfd_reloc_overflow;
737
738 if (addend & 1)
739 return bfd_reloc_dangerous;
740
741 insn &= 0xfff0;
742 insn |= (addend >> 1);
743 break;
744
745 case R_V850_TDA_4_4_OFFSET:
746 insn = bfd_get_16 (abfd, address);
747 addend += insn & 0xf;
748
749 saddend = (bfd_signed_vma) addend;
750
751 if (saddend > 0xf || saddend < 0)
752 return bfd_reloc_overflow;
753
754 insn &= 0xfff0;
755 insn |= addend;
756 break;
757
758 case R_V810_WLO_1:
759 case R_V850_HWLO:
760 case R_V850_HWLO_1:
761 case R_V850_LO16_S1:
762 insn = bfd_get_16 (abfd, address);
763 result = insn & 0xfffe;
764 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
765 return bfd_reloc_overflow;
766 if (result & 1)
767 return bfd_reloc_overflow;
768 insn = (result & 0xfffe)
769 | (insn & ~0xfffe);
770 bfd_put_16 (abfd, insn, address);
771 return bfd_reloc_ok;
772
773 case R_V850_BLO:
774 case R_V850_LO16_SPLIT_OFFSET:
775 insn = bfd_get_32 (abfd, address);
776 result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5);
777 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
778 return bfd_reloc_overflow;
779 insn = (((result << 16) & 0xfffe0000)
780 | ((result << 5) & 0x20)
781 | (insn & ~0xfffe0020));
782 bfd_put_32 (abfd, insn, address);
783 return bfd_reloc_ok;
784
785 case R_V850_16_SPLIT_OFFSET:
786 case R_V850_SDA_16_16_SPLIT_OFFSET:
787 case R_V850_ZDA_16_16_SPLIT_OFFSET:
788 insn = bfd_get_32 (abfd, address);
789 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
790
791 saddend = (bfd_signed_vma) addend;
792
793 if (saddend > 0x7fff || saddend < -0x8000)
794 return bfd_reloc_overflow;
795
796 insn &= 0x0001ffdf;
797 insn |= (addend & 1) << 5;
798 insn |= (addend &~ (bfd_vma) 1) << 16;
799
800 bfd_put_32 (abfd, (bfd_vma) insn, address);
801 return bfd_reloc_ok;
802
803 case R_V850_GNU_VTINHERIT:
804 case R_V850_GNU_VTENTRY:
805 return bfd_reloc_ok;
806
807 }
808
809 bfd_put_16 (abfd, (bfd_vma) insn, address);
810 return bfd_reloc_ok;
811 }
812 \f
813 /* Insert the addend into the instruction. */
814
815 static bfd_reloc_status_type
816 v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
817 arelent *reloc,
818 asymbol *symbol,
819 void * data ATTRIBUTE_UNUSED,
820 asection *isection,
821 bfd *obfd,
822 char **err ATTRIBUTE_UNUSED)
823 {
824 long relocation;
825
826 /* If there is an output BFD,
827 and the symbol is not a section name (which is only defined at final link time),
828 and either we are not putting the addend into the instruction
829 or the addend is zero, so there is nothing to add into the instruction
830 then just fixup the address and return. */
831 if (obfd != NULL
832 && (symbol->flags & BSF_SECTION_SYM) == 0
833 && (! reloc->howto->partial_inplace
834 || reloc->addend == 0))
835 {
836 reloc->address += isection->output_offset;
837 return bfd_reloc_ok;
838 }
839
840 /* Catch relocs involving undefined symbols. */
841 if (bfd_is_und_section (symbol->section)
842 && (symbol->flags & BSF_WEAK) == 0
843 && obfd == NULL)
844 return bfd_reloc_undefined;
845
846 /* We handle final linking of some relocs ourselves. */
847
848 /* Is the address of the relocation really within the section? */
849 if (reloc->address > bfd_get_section_limit (abfd, isection))
850 return bfd_reloc_outofrange;
851
852 /* Work out which section the relocation is targeted at and the
853 initial relocation command value. */
854
855 if (reloc->howto->pc_relative)
856 return bfd_reloc_ok;
857
858 /* Get symbol value. (Common symbols are special.) */
859 if (bfd_is_com_section (symbol->section))
860 relocation = 0;
861 else
862 relocation = symbol->value;
863
864 /* Convert input-section-relative symbol value to absolute + addend. */
865 relocation += symbol->section->output_section->vma;
866 relocation += symbol->section->output_offset;
867 relocation += reloc->addend;
868
869 reloc->addend = relocation;
870 return bfd_reloc_ok;
871 }
872
873 /* This function is used for relocs which are only used
874 for relaxing, which the linker should otherwise ignore. */
875
876 static bfd_reloc_status_type
877 v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
878 arelent *reloc_entry,
879 asymbol *symbol ATTRIBUTE_UNUSED,
880 void * data ATTRIBUTE_UNUSED,
881 asection *input_section,
882 bfd *output_bfd,
883 char **error_message ATTRIBUTE_UNUSED)
884 {
885 if (output_bfd != NULL)
886 reloc_entry->address += input_section->output_offset;
887
888 return bfd_reloc_ok;
889 }
890 /* Note: It is REQUIRED that the 'type' value of each entry
891 in this array match the index of the entry in the array.
892 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
893 static reloc_howto_type v850_elf_howto_table[] =
894 {
895 /* This reloc does nothing. */
896 HOWTO (R_V850_NONE, /* Type. */
897 0, /* Rightshift. */
898 3, /* Size (0 = byte, 1 = short, 2 = long). */
899 0, /* Bitsize. */
900 FALSE, /* PC_relative. */
901 0, /* Bitpos. */
902 complain_overflow_dont, /* Complain_on_overflow. */
903 bfd_elf_generic_reloc, /* Special_function. */
904 "R_V850_NONE", /* Name. */
905 FALSE, /* Partial_inplace. */
906 0, /* Src_mask. */
907 0, /* Dst_mask. */
908 FALSE), /* PCrel_offset. */
909
910 /* A PC relative 9 bit branch. */
911 HOWTO (R_V850_9_PCREL, /* Type. */
912 0, /* Rightshift. */
913 1, /* Size (0 = byte, 1 = short, 2 = long). */
914 9, /* Bitsize. */
915 TRUE, /* PC_relative. */
916 0, /* Bitpos. */
917 complain_overflow_bitfield, /* Complain_on_overflow. */
918 v850_elf_reloc, /* Special_function. */
919 "R_V850_9_PCREL", /* Name. */
920 FALSE, /* Partial_inplace. */
921 0x00ffffff, /* Src_mask. */
922 0x00ffffff, /* Dst_mask. */
923 TRUE), /* PCrel_offset. */
924
925 /* A PC relative 22 bit branch. */
926 HOWTO (R_V850_22_PCREL, /* Type. */
927 0, /* Rightshift. */
928 2, /* Size (0 = byte, 1 = short, 2 = long). */
929 22, /* Bitsize. */
930 TRUE, /* PC_relative. */
931 0, /* Bitpos. */
932 complain_overflow_signed, /* Complain_on_overflow. */
933 v850_elf_reloc, /* Special_function. */
934 "R_V850_22_PCREL", /* Name. */
935 FALSE, /* Partial_inplace. */
936 0x07ffff80, /* Src_mask. */
937 0x07ffff80, /* Dst_mask. */
938 TRUE), /* PCrel_offset. */
939
940 /* High 16 bits of symbol value. */
941 HOWTO (R_V850_HI16_S, /* Type. */
942 0, /* Rightshift. */
943 1, /* Size (0 = byte, 1 = short, 2 = long). */
944 16, /* Bitsize. */
945 FALSE, /* PC_relative. */
946 0, /* Bitpos. */
947 complain_overflow_dont, /* Complain_on_overflow. */
948 v850_elf_reloc, /* Special_function. */
949 "R_V850_HI16_S", /* Name. */
950 FALSE, /* Partial_inplace. */
951 0xffff, /* Src_mask. */
952 0xffff, /* Dst_mask. */
953 FALSE), /* PCrel_offset. */
954
955 /* High 16 bits of symbol value. */
956 HOWTO (R_V850_HI16, /* Type. */
957 0, /* Rightshift. */
958 1, /* Size (0 = byte, 1 = short, 2 = long). */
959 16, /* Bitsize. */
960 FALSE, /* PC_relative. */
961 0, /* Bitpos. */
962 complain_overflow_dont, /* Complain_on_overflow. */
963 v850_elf_reloc, /* Special_function. */
964 "R_V850_HI16", /* Name. */
965 FALSE, /* Partial_inplace. */
966 0xffff, /* Src_mask. */
967 0xffff, /* Dst_mask. */
968 FALSE), /* PCrel_offset. */
969
970 /* Low 16 bits of symbol value. */
971 HOWTO (R_V850_LO16, /* Type. */
972 0, /* Rightshift. */
973 1, /* Size (0 = byte, 1 = short, 2 = long). */
974 16, /* Bitsize. */
975 FALSE, /* PC_relative. */
976 0, /* Bitpos. */
977 complain_overflow_dont, /* Complain_on_overflow. */
978 v850_elf_reloc, /* Special_function. */
979 "R_V850_LO16", /* Name. */
980 FALSE, /* Partial_inplace. */
981 0xffff, /* Src_mask. */
982 0xffff, /* Dst_mask. */
983 FALSE), /* PCrel_offset. */
984
985 /* Simple 32bit reloc. */
986 HOWTO (R_V850_ABS32, /* Type. */
987 0, /* Rightshift. */
988 2, /* Size (0 = byte, 1 = short, 2 = long). */
989 32, /* Bitsize. */
990 FALSE, /* PC_relative. */
991 0, /* Bitpos. */
992 complain_overflow_dont, /* Complain_on_overflow. */
993 v850_elf_reloc, /* Special_function. */
994 "R_V850_ABS32", /* Name. */
995 FALSE, /* Partial_inplace. */
996 0xffffffff, /* Src_mask. */
997 0xffffffff, /* Dst_mask. */
998 FALSE), /* PCrel_offset. */
999
1000 /* Simple 16bit reloc. */
1001 HOWTO (R_V850_16, /* Type. */
1002 0, /* Rightshift. */
1003 1, /* Size (0 = byte, 1 = short, 2 = long). */
1004 16, /* Bitsize. */
1005 FALSE, /* PC_relative. */
1006 0, /* Bitpos. */
1007 complain_overflow_dont, /* Complain_on_overflow. */
1008 bfd_elf_generic_reloc, /* Special_function. */
1009 "R_V850_16", /* Name. */
1010 FALSE, /* Partial_inplace. */
1011 0xffff, /* Src_mask. */
1012 0xffff, /* Dst_mask. */
1013 FALSE), /* PCrel_offset. */
1014
1015 /* Simple 8bit reloc. */
1016 HOWTO (R_V850_8, /* Type. */
1017 0, /* Rightshift. */
1018 0, /* Size (0 = byte, 1 = short, 2 = long). */
1019 8, /* Bitsize. */
1020 FALSE, /* PC_relative. */
1021 0, /* Bitpos. */
1022 complain_overflow_dont, /* Complain_on_overflow. */
1023 bfd_elf_generic_reloc, /* Special_function. */
1024 "R_V850_8", /* Name. */
1025 FALSE, /* Partial_inplace. */
1026 0xff, /* Src_mask. */
1027 0xff, /* Dst_mask. */
1028 FALSE), /* PCrel_offset. */
1029
1030 /* 16 bit offset from the short data area pointer. */
1031 HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */
1032 0, /* Rightshift. */
1033 1, /* Size (0 = byte, 1 = short, 2 = long). */
1034 16, /* Bitsize. */
1035 FALSE, /* PC_relative. */
1036 0, /* Bitpos. */
1037 complain_overflow_dont, /* Complain_on_overflow. */
1038 v850_elf_reloc, /* Special_function. */
1039 "R_V850_SDA_16_16_OFFSET", /* Name. */
1040 FALSE, /* Partial_inplace. */
1041 0xffff, /* Src_mask. */
1042 0xffff, /* Dst_mask. */
1043 FALSE), /* PCrel_offset. */
1044
1045 /* 15 bit offset from the short data area pointer. */
1046 HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */
1047 1, /* Rightshift. */
1048 1, /* Size (0 = byte, 1 = short, 2 = long). */
1049 16, /* Bitsize. */
1050 FALSE, /* PC_relative. */
1051 1, /* Bitpos. */
1052 complain_overflow_dont, /* Complain_on_overflow. */
1053 v850_elf_reloc, /* Special_function. */
1054 "R_V850_SDA_15_16_OFFSET", /* Name. */
1055 FALSE, /* Partial_inplace. */
1056 0xfffe, /* Src_mask. */
1057 0xfffe, /* Dst_mask. */
1058 FALSE), /* PCrel_offset. */
1059
1060 /* 16 bit offset from the zero data area pointer. */
1061 HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */
1062 0, /* Rightshift. */
1063 1, /* Size (0 = byte, 1 = short, 2 = long). */
1064 16, /* Bitsize. */
1065 FALSE, /* PC_relative. */
1066 0, /* Bitpos. */
1067 complain_overflow_dont, /* Complain_on_overflow. */
1068 v850_elf_reloc, /* Special_function. */
1069 "R_V850_ZDA_16_16_OFFSET", /* Name. */
1070 FALSE, /* Partial_inplace. */
1071 0xffff, /* Src_mask. */
1072 0xffff, /* Dst_mask. */
1073 FALSE), /* PCrel_offset. */
1074
1075 /* 15 bit offset from the zero data area pointer. */
1076 HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */
1077 1, /* Rightshift. */
1078 1, /* Size (0 = byte, 1 = short, 2 = long). */
1079 16, /* Bitsize. */
1080 FALSE, /* PC_relative. */
1081 1, /* Bitpos. */
1082 complain_overflow_dont, /* Complain_on_overflow. */
1083 v850_elf_reloc, /* Special_function. */
1084 "R_V850_ZDA_15_16_OFFSET", /* Name. */
1085 FALSE, /* Partial_inplace. */
1086 0xfffe, /* Src_mask. */
1087 0xfffe, /* Dst_mask. */
1088 FALSE), /* PCrel_offset. */
1089
1090 /* 6 bit offset from the tiny data area pointer. */
1091 HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */
1092 2, /* Rightshift. */
1093 1, /* Size (0 = byte, 1 = short, 2 = long). */
1094 8, /* Bitsize. */
1095 FALSE, /* PC_relative. */
1096 1, /* Bitpos. */
1097 complain_overflow_dont, /* Complain_on_overflow. */
1098 v850_elf_reloc, /* Special_function. */
1099 "R_V850_TDA_6_8_OFFSET", /* Name. */
1100 FALSE, /* Partial_inplace. */
1101 0x7e, /* Src_mask. */
1102 0x7e, /* Dst_mask. */
1103 FALSE), /* PCrel_offset. */
1104
1105 /* 8 bit offset from the tiny data area pointer. */
1106 HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */
1107 1, /* Rightshift. */
1108 1, /* Size (0 = byte, 1 = short, 2 = long). */
1109 8, /* Bitsize. */
1110 FALSE, /* PC_relative. */
1111 0, /* Bitpos. */
1112 complain_overflow_dont, /* Complain_on_overflow. */
1113 v850_elf_reloc, /* Special_function. */
1114 "R_V850_TDA_7_8_OFFSET", /* Name. */
1115 FALSE, /* Partial_inplace. */
1116 0x7f, /* Src_mask. */
1117 0x7f, /* Dst_mask. */
1118 FALSE), /* PCrel_offset. */
1119
1120 /* 7 bit offset from the tiny data area pointer. */
1121 HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */
1122 0, /* Rightshift. */
1123 1, /* Size (0 = byte, 1 = short, 2 = long). */
1124 7, /* Bitsize. */
1125 FALSE, /* PC_relative. */
1126 0, /* Bitpos. */
1127 complain_overflow_dont, /* Complain_on_overflow. */
1128 v850_elf_reloc, /* Special_function. */
1129 "R_V850_TDA_7_7_OFFSET", /* Name. */
1130 FALSE, /* Partial_inplace. */
1131 0x7f, /* Src_mask. */
1132 0x7f, /* Dst_mask. */
1133 FALSE), /* PCrel_offset. */
1134
1135 /* 16 bit offset from the tiny data area pointer! */
1136 HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */
1137 0, /* Rightshift. */
1138 1, /* Size (0 = byte, 1 = short, 2 = long). */
1139 16, /* Bitsize. */
1140 FALSE, /* PC_relative. */
1141 0, /* Bitpos. */
1142 complain_overflow_dont, /* Complain_on_overflow. */
1143 v850_elf_reloc, /* Special_function. */
1144 "R_V850_TDA_16_16_OFFSET", /* Name. */
1145 FALSE, /* Partial_inplace. */
1146 0xffff, /* Src_mask. */
1147 0xfff, /* Dst_mask. */
1148 FALSE), /* PCrel_offset. */
1149
1150 /* 5 bit offset from the tiny data area pointer. */
1151 HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */
1152 1, /* Rightshift. */
1153 1, /* Size (0 = byte, 1 = short, 2 = long). */
1154 5, /* Bitsize. */
1155 FALSE, /* PC_relative. */
1156 0, /* Bitpos. */
1157 complain_overflow_dont, /* Complain_on_overflow. */
1158 v850_elf_reloc, /* Special_function. */
1159 "R_V850_TDA_4_5_OFFSET", /* Name. */
1160 FALSE, /* Partial_inplace. */
1161 0x0f, /* Src_mask. */
1162 0x0f, /* Dst_mask. */
1163 FALSE), /* PCrel_offset. */
1164
1165 /* 4 bit offset from the tiny data area pointer. */
1166 HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */
1167 0, /* Rightshift. */
1168 1, /* Size (0 = byte, 1 = short, 2 = long). */
1169 4, /* Bitsize. */
1170 FALSE, /* PC_relative. */
1171 0, /* Bitpos. */
1172 complain_overflow_dont, /* Complain_on_overflow. */
1173 v850_elf_reloc, /* Special_function. */
1174 "R_V850_TDA_4_4_OFFSET", /* Name. */
1175 FALSE, /* Partial_inplace. */
1176 0x0f, /* Src_mask. */
1177 0x0f, /* Dst_mask. */
1178 FALSE), /* PCrel_offset. */
1179
1180 /* 16 bit offset from the short data area pointer. */
1181 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */
1182 0, /* Rightshift. */
1183 2, /* Size (0 = byte, 1 = short, 2 = long). */
1184 16, /* Bitsize. */
1185 FALSE, /* PC_relative. */
1186 0, /* Bitpos. */
1187 complain_overflow_dont, /* Complain_on_overflow. */
1188 v850_elf_reloc, /* Special_function. */
1189 "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */
1190 FALSE, /* Partial_inplace. */
1191 0xfffe0020, /* Src_mask. */
1192 0xfffe0020, /* Dst_mask. */
1193 FALSE), /* PCrel_offset. */
1194
1195 /* 16 bit offset from the zero data area pointer. */
1196 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */
1197 0, /* Rightshift. */
1198 2, /* Size (0 = byte, 1 = short, 2 = long). */
1199 16, /* Bitsize. */
1200 FALSE, /* PC_relative. */
1201 0, /* Bitpos. */
1202 complain_overflow_dont, /* Complain_on_overflow. */
1203 v850_elf_reloc, /* Special_function. */
1204 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */
1205 FALSE, /* Partial_inplace. */
1206 0xfffe0020, /* Src_mask. */
1207 0xfffe0020, /* Dst_mask. */
1208 FALSE), /* PCrel_offset. */
1209
1210 /* 6 bit offset from the call table base pointer. */
1211 HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */
1212 0, /* Rightshift. */
1213 1, /* Size (0 = byte, 1 = short, 2 = long). */
1214 7, /* Bitsize. */
1215 FALSE, /* PC_relative. */
1216 0, /* Bitpos. */
1217 complain_overflow_dont, /* Complain_on_overflow. */
1218 v850_elf_reloc, /* Special_function. */
1219 "R_V850_CALLT_6_7_OFFSET", /* Name. */
1220 FALSE, /* Partial_inplace. */
1221 0x3f, /* Src_mask. */
1222 0x3f, /* Dst_mask. */
1223 FALSE), /* PCrel_offset. */
1224
1225 /* 16 bit offset from the call table base pointer. */
1226 HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */
1227 0, /* Rightshift. */
1228 1, /* Size (0 = byte, 1 = short, 2 = long). */
1229 16, /* Bitsize. */
1230 FALSE, /* PC_relative. */
1231 0, /* Bitpos. */
1232 complain_overflow_dont, /* Complain_on_overflow. */
1233 v850_elf_reloc, /* Special_function. */
1234 "R_V850_CALLT_16_16_OFFSET", /* Name. */
1235 FALSE, /* Partial_inplace. */
1236 0xffff, /* Src_mask. */
1237 0xffff, /* Dst_mask. */
1238 FALSE), /* PCrel_offset. */
1239
1240
1241 /* GNU extension to record C++ vtable hierarchy */
1242 HOWTO (R_V850_GNU_VTINHERIT, /* Type. */
1243 0, /* Rightshift. */
1244 2, /* Size (0 = byte, 1 = short, 2 = long). */
1245 0, /* Bitsize. */
1246 FALSE, /* PC_relative. */
1247 0, /* Bitpos. */
1248 complain_overflow_dont, /* Complain_on_overflow. */
1249 NULL, /* Special_function. */
1250 "R_V850_GNU_VTINHERIT", /* Name. */
1251 FALSE, /* Partial_inplace. */
1252 0, /* Src_mask. */
1253 0, /* Dst_mask. */
1254 FALSE), /* PCrel_offset. */
1255
1256 /* GNU extension to record C++ vtable member usage. */
1257 HOWTO (R_V850_GNU_VTENTRY, /* Type. */
1258 0, /* Rightshift. */
1259 2, /* Size (0 = byte, 1 = short, 2 = long). */
1260 0, /* Bitsize. */
1261 FALSE, /* PC_relative. */
1262 0, /* Bitpos. */
1263 complain_overflow_dont, /* Complain_on_overflow. */
1264 _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
1265 "R_V850_GNU_VTENTRY", /* Name. */
1266 FALSE, /* Partial_inplace. */
1267 0, /* Src_mask. */
1268 0, /* Dst_mask. */
1269 FALSE), /* PCrel_offset. */
1270
1271 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
1272 pseudo-op when it finds a function call which can be relaxed. */
1273 HOWTO (R_V850_LONGCALL, /* Type. */
1274 0, /* Rightshift. */
1275 2, /* Size (0 = byte, 1 = short, 2 = long). */
1276 32, /* Bitsize. */
1277 TRUE, /* PC_relative. */
1278 0, /* Bitpos. */
1279 complain_overflow_signed, /* Complain_on_overflow. */
1280 v850_elf_ignore_reloc, /* Special_function. */
1281 "R_V850_LONGCALL", /* Name. */
1282 FALSE, /* Partial_inplace. */
1283 0, /* Src_mask. */
1284 0, /* Dst_mask. */
1285 TRUE), /* PCrel_offset. */
1286
1287 /* Indicates a .longjump pseudo-op. The compiler will generate a
1288 .longjump pseudo-op when it finds a branch which can be relaxed. */
1289 HOWTO (R_V850_LONGJUMP, /* Type. */
1290 0, /* Rightshift. */
1291 2, /* Size (0 = byte, 1 = short, 2 = long). */
1292 32, /* Bitsize. */
1293 TRUE, /* PC_relative. */
1294 0, /* Bitpos. */
1295 complain_overflow_signed, /* Complain_on_overflow. */
1296 v850_elf_ignore_reloc, /* Special_function. */
1297 "R_V850_LONGJUMP", /* Name. */
1298 FALSE, /* Partial_inplace. */
1299 0, /* Src_mask. */
1300 0, /* Dst_mask. */
1301 TRUE), /* PCrel_offset. */
1302
1303 HOWTO (R_V850_ALIGN, /* Type. */
1304 0, /* Rightshift. */
1305 1, /* Size (0 = byte, 1 = short, 2 = long). */
1306 0, /* Bitsize. */
1307 FALSE, /* PC_relative. */
1308 0, /* Bitpos. */
1309 complain_overflow_unsigned, /* Complain_on_overflow. */
1310 v850_elf_ignore_reloc, /* Special_function. */
1311 "R_V850_ALIGN", /* Name. */
1312 FALSE, /* Partial_inplace. */
1313 0, /* Src_mask. */
1314 0, /* Dst_mask. */
1315 TRUE), /* PCrel_offset. */
1316
1317 /* Simple pc-relative 32bit reloc. */
1318 HOWTO (R_V850_REL32, /* Type. */
1319 0, /* Rightshift. */
1320 2, /* Size (0 = byte, 1 = short, 2 = long). */
1321 32, /* Bitsize. */
1322 TRUE, /* PC_relative. */
1323 0, /* Bitpos. */
1324 complain_overflow_dont, /* Complain_on_overflow. */
1325 v850_elf_reloc, /* Special_function. */
1326 "R_V850_REL32", /* Name. */
1327 FALSE, /* Partial_inplace. */
1328 0xffffffff, /* Src_mask. */
1329 0xffffffff, /* Dst_mask. */
1330 FALSE), /* PCrel_offset. */
1331
1332 /* An ld.bu version of R_V850_LO16. */
1333 HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */
1334 0, /* Rightshift. */
1335 2, /* Size (0 = byte, 1 = short, 2 = long). */
1336 16, /* Bitsize. */
1337 FALSE, /* PC_relative. */
1338 0, /* Bitpos. */
1339 complain_overflow_dont, /* Complain_on_overflow. */
1340 v850_elf_reloc, /* Special_function. */
1341 "R_V850_LO16_SPLIT_OFFSET", /* Name. */
1342 FALSE, /* Partial_inplace. */
1343 0xfffe0020, /* Src_mask. */
1344 0xfffe0020, /* Dst_mask. */
1345 FALSE), /* PCrel_offset. */
1346
1347 /* A unsigned PC relative 16 bit loop. */
1348 HOWTO (R_V850_16_PCREL, /* Type. */
1349 0, /* Rightshift. */
1350 1, /* Size (0 = byte, 1 = short, 2 = long). */
1351 16, /* Bitsize. */
1352 TRUE, /* PC_relative. */
1353 0, /* Bitpos. */
1354 complain_overflow_bitfield, /* Complain_on_overflow. */
1355 v850_elf_reloc, /* Special_function. */
1356 "R_V850_16_PCREL", /* Name. */
1357 FALSE, /* Partial_inplace. */
1358 0xfffe, /* Src_mask. */
1359 0xfffe, /* Dst_mask. */
1360 TRUE), /* PCrel_offset. */
1361
1362 /* A PC relative 17 bit branch. */
1363 HOWTO (R_V850_17_PCREL, /* Type. */
1364 0, /* Rightshift. */
1365 2, /* Size (0 = byte, 1 = short, 2 = long). */
1366 17, /* Bitsize. */
1367 TRUE, /* PC_relative. */
1368 0, /* Bitpos. */
1369 complain_overflow_bitfield, /* Complain_on_overflow. */
1370 v850_elf_reloc, /* Special_function. */
1371 "R_V850_17_PCREL", /* Name. */
1372 FALSE, /* Partial_inplace. */
1373 0x0010fffe, /* Src_mask. */
1374 0x0010fffe, /* Dst_mask. */
1375 TRUE), /* PCrel_offset. */
1376
1377 /* A 23bit offset ld/st. */
1378 HOWTO (R_V850_23, /* type. */
1379 0, /* rightshift. */
1380 2, /* size (0 = byte, 1 = short, 2 = long). */
1381 23, /* bitsize. */
1382 FALSE, /* pc_relative. */
1383 0, /* bitpos. */
1384 complain_overflow_dont, /* complain_on_overflow. */
1385 v850_elf_reloc, /* special_function. */
1386 "R_V850_23", /* name. */
1387 FALSE, /* partial_inplace. */
1388 0xffff07f0, /* src_mask. */
1389 0xffff07f0, /* dst_mask. */
1390 FALSE), /* pcrel_offset. */
1391
1392 /* A PC relative 32 bit branch. */
1393 HOWTO (R_V850_32_PCREL, /* type. */
1394 1, /* rightshift. */
1395 2, /* size (0 = byte, 1 = short, 2 = long). */
1396 32, /* bitsize. */
1397 TRUE, /* pc_relative. */
1398 1, /* bitpos. */
1399 complain_overflow_signed, /* complain_on_overflow. */
1400 v850_elf_reloc, /* special_function. */
1401 "R_V850_32_PCREL", /* name. */
1402 FALSE, /* partial_inplace. */
1403 0xfffffffe, /* src_mask. */
1404 0xfffffffe, /* dst_mask. */
1405 TRUE), /* pcrel_offset. */
1406
1407 /* A absolute 32 bit branch. */
1408 HOWTO (R_V850_32_ABS, /* type. */
1409 1, /* rightshift. */
1410 2, /* size (0 = byte, 1 = short, 2 = long). */
1411 32, /* bitsize. */
1412 TRUE, /* pc_relative. */
1413 1, /* bitpos. */
1414 complain_overflow_signed, /* complain_on_overflow. */
1415 v850_elf_reloc, /* special_function. */
1416 "R_V850_32_ABS", /* name. */
1417 FALSE, /* partial_inplace. */
1418 0xfffffffe, /* src_mask. */
1419 0xfffffffe, /* dst_mask. */
1420 FALSE), /* pcrel_offset. */
1421
1422 /* High 16 bits of symbol value. */
1423 HOWTO (R_V850_HI16, /* Type. */
1424 0, /* Rightshift. */
1425 1, /* Size (0 = byte, 1 = short, 2 = long). */
1426 16, /* Bitsize. */
1427 FALSE, /* PC_relative. */
1428 0, /* Bitpos. */
1429 complain_overflow_dont, /* Complain_on_overflow. */
1430 v850_elf_reloc, /* Special_function. */
1431 "R_V850_HI16", /* Name. */
1432 FALSE, /* Partial_inplace. */
1433 0xffff, /* Src_mask. */
1434 0xffff, /* Dst_mask. */
1435 FALSE), /* PCrel_offset. */
1436
1437 /* Low 16 bits of symbol value. */
1438 HOWTO (R_V850_16_S1, /* type. */
1439 1, /* rightshift. */
1440 1, /* size (0 = byte, 1 = short, 2 = long). */
1441 16, /* bitsize. */
1442 FALSE, /* pc_relative. */
1443 1, /* bitpos. */
1444 complain_overflow_dont, /* complain_on_overflow. */
1445 v850_elf_reloc, /* special_function. */
1446 "R_V850_16_S1", /* name. */
1447 FALSE, /* partial_inplace. */
1448 0xfffe, /* src_mask. */
1449 0xfffe, /* dst_mask. */
1450 FALSE), /* pcrel_offset. */
1451
1452 /* Low 16 bits of symbol value. */
1453 HOWTO (R_V850_LO16_S1, /* type. */
1454 1, /* rightshift. */
1455 1, /* size (0 = byte, 1 = short, 2 = long). */
1456 16, /* bitsize. */
1457 FALSE, /* pc_relative. */
1458 1, /* bitpos. */
1459 complain_overflow_dont, /* complain_on_overflow. */
1460 v850_elf_reloc, /* special_function. */
1461 "R_V850_LO16_S1", /* name. */
1462 FALSE, /* partial_inplace. */
1463 0xfffe, /* src_mask. */
1464 0xfffe, /* dst_mask. */
1465 FALSE), /* pcrel_offset. */
1466
1467 /* 16 bit offset from the call table base pointer. */
1468 HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */
1469 1, /* rightshift. */
1470 1, /* size (0 = byte, 1 = short, 2 = long). */
1471 16, /* bitsize. */
1472 FALSE, /* pc_relative. */
1473 1, /* bitpos. */
1474 complain_overflow_dont, /* complain_on_overflow. */
1475 v850_elf_reloc, /* special_function. */
1476 "R_V850_CALLT_15_16_OFFSET", /* name. */
1477 FALSE, /* partial_inplace. */
1478 0xfffe, /* src_mask. */
1479 0xfffe, /* dst_mask. */
1480 FALSE), /* pcrel_offset. */
1481
1482 /* Like R_V850_32 PCREL, but referring to the GOT table entry for
1483 the symbol. */
1484 HOWTO (R_V850_32_GOTPCREL, /* type. */
1485 0, /* rightshift. */
1486 2, /* size (0 = byte, 1 = short, 2 = long). */
1487 32, /* bitsize. */
1488 TRUE, /* pc_relative. */
1489 0, /* bitpos. */
1490 complain_overflow_unsigned, /* complain_on_overflow. */
1491 v850_elf_reloc, /* special_function. */
1492 "R_V850_32_GOTPCREL", /* name. */
1493 FALSE, /* partial_inplace. */
1494 0xffffffff, /* src_mask. */
1495 0xffffffff, /* dst_mask. */
1496 TRUE), /* pcrel_offset. */
1497
1498 /* Like R_V850_SDA_, but referring to the GOT table entry for
1499 the symbol. */
1500 HOWTO (R_V850_16_GOT, /* type. */
1501 0, /* rightshift. */
1502 2, /* size (0 = byte, 1 = short, 2 = long). */
1503 16, /* bitsize. */
1504 FALSE, /* pc_relative. */
1505 0, /* bitpos. */
1506 complain_overflow_unsigned, /* complain_on_overflow. */
1507 bfd_elf_generic_reloc, /* special_function. */
1508 "R_V850_16_GOT", /* name. */
1509 FALSE, /* partial_inplace. */
1510 0xffff, /* src_mask. */
1511 0xffff, /* dst_mask. */
1512 FALSE), /* pcrel_offset. */
1513
1514 HOWTO (R_V850_32_GOT, /* type. */
1515 0, /* rightshift. */
1516 2, /* size (0 = byte, 1 = short, 2 = long). */
1517 32, /* bitsize. */
1518 FALSE, /* pc_relative. */
1519 0, /* bitpos. */
1520 complain_overflow_unsigned, /* complain_on_overflow. */
1521 bfd_elf_generic_reloc, /* special_function. */
1522 "R_V850_32_GOT", /* name. */
1523 FALSE, /* partial_inplace. */
1524 0xffffffff, /* src_mask. */
1525 0xffffffff, /* dst_mask. */
1526 FALSE), /* pcrel_offset. */
1527
1528 /* Like R_V850_22_PCREL, but referring to the procedure linkage table
1529 entry for the symbol. */
1530 HOWTO (R_V850_22_PLT, /* type. */
1531 1, /* rightshift. */
1532 2, /* size (0 = byte, 1 = short, 2 = long). */
1533 22, /* bitsize. */
1534 TRUE, /* pc_relative. */
1535 7, /* bitpos. */
1536 complain_overflow_signed, /* complain_on_overflow. */
1537 bfd_elf_generic_reloc, /* special_function. */
1538 "R_V850_22_PLT", /* name. */
1539 FALSE, /* partial_inplace. */
1540 0x07ffff80, /* src_mask. */
1541 0x07ffff80, /* dst_mask. */
1542 TRUE), /* pcrel_offset. */
1543
1544 HOWTO (R_V850_32_PLT, /* type. */
1545 1, /* rightshift. */
1546 2, /* size (0 = byte, 1 = short, 2 = long). */
1547 32, /* bitsize. */
1548 TRUE, /* pc_relative. */
1549 1, /* bitpos. */
1550 complain_overflow_signed, /* complain_on_overflow. */
1551 bfd_elf_generic_reloc, /* special_function. */
1552 "R_V850_32_PLT", /* name. */
1553 FALSE, /* partial_inplace. */
1554 0xffffffff, /* src_mask. */
1555 0xffffffff, /* dst_mask. */
1556 TRUE), /* pcrel_offset. */
1557
1558 /* This is used only by the dynamic linker. The symbol should exist
1559 both in the object being run and in some shared library. The
1560 dynamic linker copies the data addressed by the symbol from the
1561 shared library into the object, because the object being
1562 run has to have the data at some particular address. */
1563 HOWTO (R_V850_COPY, /* type. */
1564 0, /* rightshift. */
1565 2, /* size (0 = byte, 1 = short, 2 = long). */
1566 32, /* bitsize. */
1567 FALSE, /* pc_relative. */
1568 0, /* bitpos. */
1569 complain_overflow_bitfield, /* complain_on_overflow. */
1570 bfd_elf_generic_reloc, /* special_function. */
1571 "R_V850_COPY", /* name. */
1572 FALSE, /* partial_inplace. */
1573 0xffffffff, /* src_mask. */
1574 0xffffffff, /* dst_mask. */
1575 FALSE), /* pcrel_offset. */
1576
1577 /* Like R_M32R_24, but used when setting global offset table
1578 entries. */
1579 HOWTO (R_V850_GLOB_DAT, /* type. */
1580 0, /* rightshift. */
1581 2, /* size (0 = byte, 1 = short, 2 = long) */
1582 32, /* bitsize. */
1583 FALSE, /* pc_relative. */
1584 0, /* bitpos. */
1585 complain_overflow_bitfield, /* complain_on_overflow. */
1586 bfd_elf_generic_reloc, /* special_function. */
1587 "R_V850_GLOB_DAT", /* name. */
1588 FALSE, /* partial_inplace. */
1589 0xffffffff, /* src_mask. */
1590 0xffffffff, /* dst_mask. */
1591 FALSE), /* pcrel_offset. */
1592
1593 /* Marks a procedure linkage table entry for a symbol. */
1594 HOWTO (R_V850_JMP_SLOT, /* type. */
1595 0, /* rightshift. */
1596 2, /* size (0 = byte, 1 = short, 2 = long) */
1597 32, /* bitsize. */
1598 FALSE, /* pc_relative. */
1599 0, /* bitpos. */
1600 complain_overflow_bitfield, /* complain_on_overflow. */
1601 bfd_elf_generic_reloc, /* special_function. */
1602 "R_V850_JMP_SLOT", /* name. */
1603 FALSE, /* partial_inplace. */
1604 0xffffffff, /* src_mask. */
1605 0xffffffff, /* dst_mask. */
1606 FALSE), /* pcrel_offset. */
1607
1608 /* Used only by the dynamic linker. When the object is run, this
1609 longword is set to the load address of the object, plus the
1610 addend. */
1611 HOWTO (R_V850_RELATIVE, /* type. */
1612 0, /* rightshift. */
1613 2, /* size (0 = byte, 1 = short, 2 = long) */
1614 32, /* bitsize. */
1615 FALSE, /* pc_relative. */
1616 0, /* bitpos. */
1617 complain_overflow_bitfield, /* complain_on_overflow. */
1618 bfd_elf_generic_reloc, /* special_function. */
1619 "R_V850_RELATIVE", /* name. */
1620 FALSE, /* partial_inplace. */
1621 0xffffffff, /* src_mask. */
1622 0xffffffff, /* dst_mask. */
1623 FALSE), /* pcrel_offset. */
1624
1625 HOWTO (R_V850_16_GOTOFF, /* type. */
1626 0, /* rightshift. */
1627 2, /* size (0 = byte, 1 = short, 2 = long) */
1628 16, /* bitsize. */
1629 FALSE, /* pc_relative. */
1630 0, /* bitpos. */
1631 complain_overflow_bitfield, /* complain_on_overflow. */
1632 bfd_elf_generic_reloc, /* special_function. */
1633 "R_V850_16_GOTOFF", /* name. */
1634 FALSE, /* partial_inplace. */
1635 0xffff, /* src_mask. */
1636 0xffff, /* dst_mask. */
1637 FALSE), /* pcrel_offset. */
1638
1639 HOWTO (R_V850_32_GOTOFF, /* type. */
1640 0, /* rightshift. */
1641 2, /* size (0 = byte, 1 = short, 2 = long) */
1642 32, /* bitsize. */
1643 FALSE, /* pc_relative. */
1644 0, /* bitpos. */
1645 complain_overflow_bitfield, /* complain_on_overflow. */
1646 bfd_elf_generic_reloc, /* special_function. */
1647 "R_V850_32_GOTOFF", /* name. */
1648 FALSE, /* partial_inplace. */
1649 0xffffffff, /* src_mask. */
1650 0xffffffff, /* dst_mask. */
1651 FALSE), /* pcrel_offset. */
1652
1653 HOWTO (R_V850_CODE, /* type. */
1654 0, /* rightshift. */
1655 1, /* size (0 = byte, 1 = short, 2 = long) */
1656 0, /* bitsize. */
1657 FALSE, /* pc_relative. */
1658 0, /* bitpos. */
1659 complain_overflow_unsigned, /* complain_on_overflow. */
1660 v850_elf_ignore_reloc, /* special_function. */
1661 "R_V850_CODE", /* name. */
1662 FALSE, /* partial_inplace. */
1663 0, /* src_mask. */
1664 0, /* dst_mask. */
1665 TRUE), /* pcrel_offset. */
1666
1667 HOWTO (R_V850_DATA, /* type. */
1668 0, /* rightshift. */
1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1670 0, /* bitsize. */
1671 FALSE, /* pc_relative. */
1672 0, /* bitpos. */
1673 complain_overflow_unsigned, /* complain_on_overflow. */
1674 v850_elf_ignore_reloc, /* special_function. */
1675 "R_V850_DATA", /* name. */
1676 FALSE, /* partial_inplace. */
1677 0, /* src_mask. */
1678 0, /* dst_mask. */
1679 TRUE), /* pcrel_offset. */
1680
1681 };
1682
1683 /* Map BFD reloc types to V850 ELF reloc types. */
1684
1685 struct v850_elf_reloc_map
1686 {
1687 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
1688 unsigned char. */
1689 bfd_reloc_code_real_type bfd_reloc_val;
1690 unsigned int elf_reloc_val;
1691 };
1692
1693 static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
1694 {
1695 { BFD_RELOC_NONE, R_V850_NONE },
1696 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
1697 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
1698 { BFD_RELOC_HI16_S, R_V850_HI16_S },
1699 { BFD_RELOC_HI16, R_V850_HI16 },
1700 { BFD_RELOC_LO16, R_V850_LO16 },
1701 { BFD_RELOC_32, R_V850_ABS32 },
1702 { BFD_RELOC_32_PCREL, R_V850_REL32 },
1703 { BFD_RELOC_16, R_V850_16 },
1704 { BFD_RELOC_8, R_V850_8 },
1705 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
1706 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
1707 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
1708 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
1709 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
1710 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
1711 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
1712 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
1713 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
1714 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
1715 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET },
1716 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
1717 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
1718 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
1719 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
1720 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
1721 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
1722 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
1723 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
1724 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
1725 { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL },
1726 { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL },
1727 { BFD_RELOC_V850_23, R_V850_23 },
1728 { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL },
1729 { BFD_RELOC_V850_32_ABS, R_V850_32_ABS },
1730 { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 },
1731 { BFD_RELOC_V850_16_S1, R_V850_16_S1 },
1732 { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 },
1733 { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET },
1734 { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL },
1735 { BFD_RELOC_V850_16_GOT, R_V850_16_GOT },
1736 { BFD_RELOC_V850_32_GOT, R_V850_32_GOT },
1737 { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT },
1738 { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT },
1739 { BFD_RELOC_V850_COPY, R_V850_COPY },
1740 { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT },
1741 { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT },
1742 { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE },
1743 { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF },
1744 { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF },
1745 { BFD_RELOC_V850_CODE, R_V850_CODE },
1746 { BFD_RELOC_V850_DATA, R_V850_DATA },
1747 };
1748
1749 #define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \
1750 HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
1751 bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE)
1752
1753 #define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE)
1754
1755 #define bfd_elf_v850_reloc v850_elf_reloc
1756
1757 /* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry
1758 in this array match the index of the entry in the array minus 0x30.
1759 See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup()
1760 and v800_elf_info_to_howto(). */
1761
1762 static reloc_howto_type v800_elf_howto_table[] =
1763 {
1764 V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */
1765 V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic),
1766 V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic),
1767 V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic),
1768 V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic),
1769 V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic),
1770 V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic),
1771 V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850),
1772 V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850),
1773 V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850),
1774 V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850),
1775 V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850),
1776 V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850),
1777 V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic),
1778 V800_EMPTY (R_V810_reserved1),
1779 V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850),
1780 V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850),
1781 V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850),
1782 V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850),
1783 V800_EMPTY (R_V810_reserved2),
1784 V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850),
1785 V800_EMPTY (R_V810_reserved3),
1786 V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic),
1787 V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850),
1788 V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850),
1789 V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850),
1790 V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850),
1791 V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850),
1792 V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850),
1793 V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850),
1794 V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850),
1795 V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850),
1796 V800_EMPTY (R_V810_reserved4),
1797 V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850),
1798 V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850),
1799 V800_EMPTY (R_V810_reserved5),
1800 V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850),
1801 V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850),
1802 V800_EMPTY (R_V810_reserved6),
1803 V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850),
1804 V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850),
1805 V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850),
1806 V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850),
1807 V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850),
1808 V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850),
1809 V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850),
1810 V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850),
1811 V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic),
1812 V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic),
1813 V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850),
1814 V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850),
1815 V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850),
1816 V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850),
1817 V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850),
1818 V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850),
1819 V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850),
1820 V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850),
1821 V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850),
1822 V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850),
1823 V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850),
1824 V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850),
1825 V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850),
1826 V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850),
1827 V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850),
1828 V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850),
1829 V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850),
1830 V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850),
1831 V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850),
1832 V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850),
1833 V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850),
1834 V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850),
1835 V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850),
1836 V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850),
1837 V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850),
1838 V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850),
1839 V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850),
1840 V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850),
1841 V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850),
1842 V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850),
1843 V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850),
1844 V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850),
1845 V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850),
1846 V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850),
1847 V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850),
1848 V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850),
1849 V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850)
1850 };
1851 \f
1852 /* Map a bfd relocation into the appropriate howto structure. */
1853
1854 static reloc_howto_type *
1855 v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1856 bfd_reloc_code_real_type code)
1857 {
1858 unsigned int i;
1859
1860 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
1861 if (v850_elf_reloc_map[i].bfd_reloc_val == code)
1862 {
1863 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
1864
1865 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
1866
1867 return v850_elf_howto_table + elf_reloc_val;
1868 }
1869
1870 return NULL;
1871 }
1872
1873 static reloc_howto_type *
1874 v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1875 const char *r_name)
1876 {
1877 unsigned int i;
1878
1879 for (i = 0;
1880 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
1881 i++)
1882 if (v850_elf_howto_table[i].name != NULL
1883 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
1884 return &v850_elf_howto_table[i];
1885
1886 return NULL;
1887 }
1888 \f
1889 /* Set the howto pointer for an V850 ELF reloc. */
1890
1891 static void
1892 v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1893 arelent *cache_ptr,
1894 Elf_Internal_Rela *dst)
1895 {
1896 unsigned int r_type;
1897
1898 r_type = ELF32_R_TYPE (dst->r_info);
1899 if (r_type >= (unsigned int) R_V850_max)
1900 {
1901 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1902 r_type = 0;
1903 }
1904 cache_ptr->howto = &v850_elf_howto_table[r_type];
1905 }
1906
1907 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1908
1909 static void
1910 v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
1911 arelent * cache_ptr,
1912 Elf_Internal_Rela *dst)
1913 {
1914 unsigned int r_type;
1915
1916 r_type = ELF32_R_TYPE (dst->r_info);
1917 if (r_type >= (unsigned int) R_V850_max)
1918 {
1919 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1920 r_type = 0;
1921 }
1922 cache_ptr->howto = &v850_elf_howto_table[r_type];
1923 }
1924 \f
1925 static bfd_boolean
1926 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1927 {
1928 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1929 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1930 }
1931
1932 static bfd_boolean
1933 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1934 {
1935 return v850_elf_is_local_label_name (abfd, sym->name);
1936 }
1937 \f
1938 /* We overload some of the bfd_reloc error codes for own purposes. */
1939 #define bfd_reloc_gp_not_found bfd_reloc_other
1940 #define bfd_reloc_ep_not_found bfd_reloc_continue
1941 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1942
1943 /* Perform a relocation as part of a final link. */
1944
1945 static bfd_reloc_status_type
1946 v850_elf_final_link_relocate (reloc_howto_type *howto,
1947 bfd *input_bfd,
1948 bfd *output_bfd ATTRIBUTE_UNUSED,
1949 asection *input_section,
1950 bfd_byte *contents,
1951 bfd_vma offset,
1952 bfd_vma value,
1953 bfd_vma addend,
1954 struct bfd_link_info *info,
1955 asection *sym_sec,
1956 int is_local ATTRIBUTE_UNUSED)
1957 {
1958 unsigned int r_type = howto->type;
1959 bfd_byte *hit_data = contents + offset;
1960
1961 /* Adjust the value according to the relocation. */
1962 switch (r_type)
1963 {
1964 case R_V850_PC9:
1965 case R_V850_9_PCREL:
1966 value -= (input_section->output_section->vma
1967 + input_section->output_offset);
1968 value -= offset;
1969 break;
1970
1971 case R_V850_PC16U:
1972 case R_V850_16_PCREL:
1973 value -= (input_section->output_section->vma
1974 + input_section->output_offset
1975 + offset);
1976
1977 /* If the sign extension will corrupt the value then we have overflowed. */
1978 if ((value & 0xffff0000) != 0xffff0000)
1979 return bfd_reloc_overflow;
1980
1981 break;
1982
1983 case R_V850_PC17:
1984 case R_V850_17_PCREL:
1985 value -= (input_section->output_section->vma
1986 + input_section->output_offset
1987 + offset);
1988
1989 /* If the sign extension will corrupt the value then we have overflowed. */
1990 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1991 return bfd_reloc_overflow;
1992
1993 value = SEXT17 (value);
1994 break;
1995
1996 case R_V850_PCR22:
1997 case R_V850_22_PCREL:
1998 value -= (input_section->output_section->vma
1999 + input_section->output_offset
2000 + offset);
2001
2002 /* If the sign extension will corrupt the value then we have overflowed. */
2003 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2004 return bfd_reloc_overflow;
2005
2006 /* Only the bottom 22 bits of the PC are valid. */
2007 value = SEXT22 (value);
2008 break;
2009
2010 case R_V850_PC32:
2011 case R_V850_32_PCREL:
2012 value -= (input_section->output_section->vma
2013 + input_section->output_offset
2014 + offset);
2015 break;
2016
2017 case R_V850_32_ABS:
2018 case R_V850_23:
2019 case R_V850_HI16_S:
2020 case R_V850_HI16:
2021 case R_V850_LO16:
2022 case R_V850_LO16_S1:
2023 case R_V850_LO16_SPLIT_OFFSET:
2024 case R_V850_16:
2025 case R_V850_ABS32:
2026 case R_V850_8:
2027 case R_V810_BYTE:
2028 case R_V810_HWORD:
2029 case R_V810_WORD:
2030 case R_V810_WLO:
2031 case R_V810_WHI:
2032 case R_V810_WHI1:
2033 case R_V810_WLO_1:
2034 case R_V850_WLO23:
2035 case R_V850_BLO:
2036 break;
2037
2038 case R_V850_ZDA_15_16_OFFSET:
2039 case R_V850_ZDA_16_16_OFFSET:
2040 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2041 if (sym_sec == NULL)
2042 return bfd_reloc_undefined;
2043
2044 value -= sym_sec->output_section->vma;
2045 break;
2046
2047 case R_V850_SDA_15_16_OFFSET:
2048 case R_V850_SDA_16_16_OFFSET:
2049 case R_V850_SDA_16_16_SPLIT_OFFSET:
2050 case R_V810_GPWLO_1:
2051 {
2052 unsigned long gp;
2053 struct bfd_link_hash_entry * h;
2054
2055 if (sym_sec == NULL)
2056 return bfd_reloc_undefined;
2057
2058 /* Get the value of __gp. */
2059 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2060 if (h == NULL
2061 || h->type != bfd_link_hash_defined)
2062 return bfd_reloc_gp_not_found;
2063
2064 gp = (h->u.def.value
2065 + h->u.def.section->output_section->vma
2066 + h->u.def.section->output_offset);
2067
2068 value -= sym_sec->output_section->vma;
2069 value -= (gp - sym_sec->output_section->vma);
2070 }
2071 break;
2072
2073 case R_V850_TDA_4_4_OFFSET:
2074 case R_V850_TDA_4_5_OFFSET:
2075 case R_V850_TDA_7_7_OFFSET:
2076 case R_V850_TDA_7_8_OFFSET:
2077 case R_V850_TDA_6_8_OFFSET:
2078 case R_V850_TDA_16_16_OFFSET:
2079 {
2080 unsigned long ep;
2081 struct bfd_link_hash_entry * h;
2082
2083 /* Get the value of __ep. */
2084 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2085 if (h == NULL
2086 || h->type != bfd_link_hash_defined)
2087 return bfd_reloc_ep_not_found;
2088
2089 ep = (h->u.def.value
2090 + h->u.def.section->output_section->vma
2091 + h->u.def.section->output_offset);
2092
2093 value -= ep;
2094 }
2095 break;
2096
2097 case R_V850_CALLT_6_7_OFFSET:
2098 {
2099 unsigned long ctbp;
2100 struct bfd_link_hash_entry * h;
2101
2102 /* Get the value of __ctbp. */
2103 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2104 if (h == NULL
2105 || h->type != bfd_link_hash_defined)
2106 return bfd_reloc_ctbp_not_found;
2107
2108 ctbp = (h->u.def.value
2109 + h->u.def.section->output_section->vma
2110 + h->u.def.section->output_offset);
2111 value -= ctbp;
2112 }
2113 break;
2114
2115 case R_V850_CALLT_15_16_OFFSET:
2116 case R_V850_CALLT_16_16_OFFSET:
2117 {
2118 unsigned long ctbp;
2119 struct bfd_link_hash_entry * h;
2120
2121 if (sym_sec == NULL)
2122 return bfd_reloc_undefined;
2123
2124 /* Get the value of __ctbp. */
2125 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2126 if (h == NULL
2127 || h->type != bfd_link_hash_defined)
2128 return bfd_reloc_ctbp_not_found;
2129
2130 ctbp = (h->u.def.value
2131 + h->u.def.section->output_section->vma
2132 + h->u.def.section->output_offset);
2133
2134 value -= sym_sec->output_section->vma;
2135 value -= (ctbp - sym_sec->output_section->vma);
2136 }
2137 break;
2138
2139 case R_V850_NONE:
2140 case R_V810_NONE:
2141 case R_V850_GNU_VTINHERIT:
2142 case R_V850_GNU_VTENTRY:
2143 case R_V850_LONGCALL:
2144 case R_V850_LONGJUMP:
2145 case R_V850_ALIGN:
2146 return bfd_reloc_ok;
2147
2148 default:
2149 #ifdef DEBUG
2150 fprintf (stderr, "%B: reloc number %d not recognised\n", input_bfd, r_type);
2151 #endif
2152 return bfd_reloc_notsupported;
2153 }
2154
2155 /* Perform the relocation. */
2156 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2157 }
2158 \f
2159 /* Relocate an V850 ELF section. */
2160
2161 static bfd_boolean
2162 v850_elf_relocate_section (bfd *output_bfd,
2163 struct bfd_link_info *info,
2164 bfd *input_bfd,
2165 asection *input_section,
2166 bfd_byte *contents,
2167 Elf_Internal_Rela *relocs,
2168 Elf_Internal_Sym *local_syms,
2169 asection **local_sections)
2170 {
2171 Elf_Internal_Shdr *symtab_hdr;
2172 struct elf_link_hash_entry **sym_hashes;
2173 Elf_Internal_Rela *rel;
2174 Elf_Internal_Rela *relend;
2175
2176 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2177 sym_hashes = elf_sym_hashes (input_bfd);
2178
2179 /* Reset the list of remembered HI16S relocs to empty. */
2180 free_hi16s = previous_hi16s;
2181 previous_hi16s = NULL;
2182 hi16s_counter = 0;
2183
2184 rel = relocs;
2185 relend = relocs + input_section->reloc_count;
2186 for (; rel < relend; rel++)
2187 {
2188 unsigned int r_type;
2189 reloc_howto_type *howto;
2190 unsigned long r_symndx;
2191 Elf_Internal_Sym *sym;
2192 asection *sec;
2193 struct elf_link_hash_entry *h;
2194 bfd_vma relocation;
2195 bfd_reloc_status_type r;
2196
2197 r_symndx = ELF32_R_SYM (rel->r_info);
2198 r_type = ELF32_R_TYPE (rel->r_info);
2199
2200 if (r_type == R_V850_GNU_VTENTRY
2201 || r_type == R_V850_GNU_VTINHERIT)
2202 continue;
2203
2204 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2205 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2206 else
2207 howto = v850_elf_howto_table + r_type;
2208
2209 BFD_ASSERT (r_type == howto->type);
2210
2211 h = NULL;
2212 sym = NULL;
2213 sec = NULL;
2214 if (r_symndx < symtab_hdr->sh_info)
2215 {
2216 sym = local_syms + r_symndx;
2217 sec = local_sections[r_symndx];
2218 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2219 }
2220 else
2221 {
2222 bfd_boolean unresolved_reloc, warned, ignored;
2223
2224 /* Note - this check is delayed until now as it is possible and
2225 valid to have a file without any symbols but with relocs that
2226 can be processed. */
2227 if (sym_hashes == NULL)
2228 {
2229 info->callbacks->warning
2230 (info, "no hash table available",
2231 NULL, input_bfd, input_section, (bfd_vma) 0);
2232
2233 return FALSE;
2234 }
2235
2236 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2237 r_symndx, symtab_hdr, sym_hashes,
2238 h, sec, relocation,
2239 unresolved_reloc, warned, ignored);
2240 }
2241
2242 if (sec != NULL && discarded_section (sec))
2243 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2244 rel, 1, relend, howto, 0, contents);
2245
2246 if (bfd_link_relocatable (info))
2247 continue;
2248
2249 /* FIXME: We should use the addend, but the COFF relocations don't. */
2250 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2251 input_section,
2252 contents, rel->r_offset,
2253 relocation, rel->r_addend,
2254 info, sec, h == NULL);
2255
2256 if (r != bfd_reloc_ok)
2257 {
2258 const char * name;
2259 const char * msg = NULL;
2260
2261 if (h != NULL)
2262 name = h->root.root.string;
2263 else
2264 {
2265 name = (bfd_elf_string_from_elf_section
2266 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2267 if (name == NULL || *name == '\0')
2268 name = bfd_section_name (input_bfd, sec);
2269 }
2270
2271 switch ((int) r)
2272 {
2273 case bfd_reloc_overflow:
2274 if (! ((*info->callbacks->reloc_overflow)
2275 (info, (h ? &h->root : NULL), name, howto->name,
2276 (bfd_vma) 0, input_bfd, input_section,
2277 rel->r_offset)))
2278 return FALSE;
2279 break;
2280
2281 case bfd_reloc_undefined:
2282 if (! ((*info->callbacks->undefined_symbol)
2283 (info, name, input_bfd, input_section,
2284 rel->r_offset, TRUE)))
2285 return FALSE;
2286 break;
2287
2288 case bfd_reloc_outofrange:
2289 msg = _("internal error: out of range error");
2290 goto common_error;
2291
2292 case bfd_reloc_notsupported:
2293 msg = _("internal error: unsupported relocation error");
2294 goto common_error;
2295
2296 case bfd_reloc_dangerous:
2297 msg = _("internal error: dangerous relocation");
2298 goto common_error;
2299
2300 case bfd_reloc_gp_not_found:
2301 msg = _("could not locate special linker symbol __gp");
2302 goto common_error;
2303
2304 case bfd_reloc_ep_not_found:
2305 msg = _("could not locate special linker symbol __ep");
2306 goto common_error;
2307
2308 case bfd_reloc_ctbp_not_found:
2309 msg = _("could not locate special linker symbol __ctbp");
2310 goto common_error;
2311
2312 default:
2313 msg = _("internal error: unknown error");
2314 /* fall through */
2315
2316 common_error:
2317 if (!((*info->callbacks->warning)
2318 (info, msg, name, input_bfd, input_section,
2319 rel->r_offset)))
2320 return FALSE;
2321 break;
2322 }
2323 }
2324 }
2325
2326 return TRUE;
2327 }
2328
2329 static asection *
2330 v850_elf_gc_mark_hook (asection *sec,
2331 struct bfd_link_info *info,
2332 Elf_Internal_Rela *rel,
2333 struct elf_link_hash_entry *h,
2334 Elf_Internal_Sym *sym)
2335 {
2336 if (h != NULL)
2337 switch (ELF32_R_TYPE (rel->r_info))
2338 {
2339 case R_V850_GNU_VTINHERIT:
2340 case R_V850_GNU_VTENTRY:
2341 return NULL;
2342 }
2343
2344 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2345 }
2346
2347 static void
2348 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2349 {
2350 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2351
2352 bfd_put_32 (abfd, 4, data + 0);
2353 bfd_put_32 (abfd, 4, data + 4);
2354 bfd_put_32 (abfd, note, data + 8);
2355 memcpy (data + 12, V850_NOTE_NAME, 4);
2356 bfd_put_32 (abfd, val, data + 16);
2357 }
2358
2359 /* Create the note section if not already present. This is done early so
2360 that the linker maps the sections to the right place in the output. */
2361
2362 static asection *
2363 v850_elf_make_note_section (bfd * abfd)
2364 {
2365 asection *s;
2366 bfd_byte *data;
2367 flagword flags;
2368 enum v850_notes id;
2369
2370 /* Make the note section. */
2371 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2372
2373 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2374 if (s == NULL)
2375 return NULL;
2376
2377 if (!bfd_set_section_alignment (abfd, s, 2))
2378 return NULL;
2379
2380 /* Allocate space for all known notes. */
2381 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2382 return NULL;
2383
2384 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2385 if (data == NULL)
2386 return NULL;
2387
2388 s->contents = data;
2389
2390 /* Provide default (= uninitilaised) values for all of the notes. */
2391 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2392 v850_set_note (abfd, s, id, 0);
2393
2394 return s;
2395 }
2396
2397 /* Create the note section if not already present. This is done early so
2398 that the linker maps the sections to the right place in the output. */
2399
2400 bfd_boolean
2401 v850_elf_create_sections (struct bfd_link_info * info)
2402 {
2403 bfd * ibfd;
2404
2405 /* If we already have a note section, do not make another. */
2406 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2407 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2408 return TRUE;
2409
2410 return v850_elf_make_note_section (info->input_bfds) != NULL;
2411 }
2412
2413 bfd_boolean
2414 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2415 {
2416 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2417
2418 if (val > 2)
2419 /* At the moment, no known note has a value over 2. */
2420 return FALSE;
2421
2422 if (notes == NULL)
2423 notes = v850_elf_make_note_section (abfd);
2424 if (notes == NULL)
2425 return FALSE;
2426
2427 v850_set_note (abfd, notes, note, val);
2428 return TRUE;
2429 }
2430
2431 /* Copy a v850 note section from one object module to another. */
2432
2433 static void
2434 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2435 {
2436 asection * onotes;
2437 asection * inotes;
2438
2439 /* If the output bfd does not have a note section, then
2440 skip the merge. The normal input to output section
2441 copying will take care of everythng for us. */
2442 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2443 return;
2444
2445 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2446 return;
2447
2448 if (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes))
2449 {
2450 bfd_byte * icont;
2451 bfd_byte * ocont;
2452
2453 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2454 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2455
2456 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2457 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2458
2459 /* Copy/overwrite notes from the input to the output. */
2460 memcpy (ocont, icont, bfd_section_size (obfd, onotes));
2461 }
2462 }
2463
2464 /* Copy backend specific data from one object module to another. */
2465
2466 static bfd_boolean
2467 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2468 {
2469 v850_elf_copy_notes (ibfd, obfd);
2470 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2471 }
2472 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2473
2474 static bfd_boolean
2475 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2476 {
2477 asection * onotes;
2478 asection * inotes;
2479 bfd_boolean result = TRUE;
2480
2481 /* If the output bfd does not have a note section, then
2482 skip the merge. The normal input to output section
2483 copying will take care of everythng for us. */
2484 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2485 return TRUE;
2486
2487 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2488 {
2489 enum v850_notes id;
2490 bfd_byte * icont;
2491 bfd_byte * ocont;
2492
2493 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2494
2495 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2496 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2497
2498 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2499 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2500
2501 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2502 {
2503 unsigned int ival;
2504 unsigned int oval;
2505 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2506 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2507
2508 ival = bfd_get_32 (ibfd, idata);
2509 oval = bfd_get_32 (obfd, odata);
2510
2511 if (ival == 0 || ival == oval)
2512 continue;
2513
2514 if (oval == 0)
2515 {
2516 bfd_put_32 (obfd, ival, odata);
2517 v850_set_note (obfd, onotes, id, ival);
2518 continue;
2519 }
2520
2521 /* We have a mismatch. The ABI defines how to handle
2522 this siutation on a per note type basis. */
2523 switch (id)
2524 {
2525 case V850_NOTE_ALIGNMENT:
2526 if (oval == EF_RH850_DATA_ALIGN4)
2527 {
2528 _bfd_error_handler
2529 (_("error: %B needs 8-byte aligment but %B is set for 4-byte alignment"),
2530 ibfd, obfd);
2531 result = FALSE;
2532 }
2533 else
2534 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2535 Leave the obfd alignment as it is. */
2536 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2537
2538 break;
2539
2540 case V850_NOTE_DATA_SIZE:
2541 if (oval == EF_RH850_DOUBLE32)
2542 {
2543 _bfd_error_handler (_("error: %B uses 64-bit doubles but %B uses 32-bit doubles"),
2544 ibfd, obfd);
2545 result = FALSE;
2546 }
2547 else
2548 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2549 This is acceptable. Honest, that is what the ABI says. */
2550 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2551 break;
2552
2553 case V850_NOTE_FPU_INFO:
2554 if (oval == EF_RH850_FPU20)
2555 {
2556 _bfd_error_handler (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"),
2557 ibfd, obfd);
2558 result = FALSE;
2559 }
2560 else
2561 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2562 BFD_ASSERT (oval == EF_RH850_FPU30);
2563
2564 break;
2565
2566 default:
2567 /* None of the other conflicts matter.
2568 Stick with the current output values. */
2569 break;
2570 }
2571 }
2572
2573 /* FIXME: We should also check for conflicts between the notes
2574 and the EF flags in the ELF header. */
2575 }
2576
2577 return result;
2578 }
2579
2580 static void
2581 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2582 {
2583 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2584
2585 switch (id)
2586 {
2587 case V850_NOTE_ALIGNMENT:
2588 fprintf (file, _(" alignment of 8-byte entities: "));
2589 switch (value)
2590 {
2591 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2592 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2593 case 0: fprintf (file, _("not set")); break;
2594 default: fprintf (file, _("unknown: %x"), value); break;
2595 }
2596 fputc ('\n', file);
2597 break;
2598
2599 case V850_NOTE_DATA_SIZE:
2600 fprintf (file, _(" size of doubles: "));
2601 switch (value)
2602 {
2603 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2604 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2605 case 0: fprintf (file, _("not set")); break;
2606 default: fprintf (file, _("unknown: %x"), value); break;
2607 }
2608 fputc ('\n', file);
2609 break;
2610
2611 case V850_NOTE_FPU_INFO:
2612 fprintf (file, _(" FPU support required: "));
2613 switch (value)
2614 {
2615 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2616 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2617 case 0: fprintf (file, _("none")); break;
2618 default: fprintf (file, _("unknown: %x"), value); break;
2619 }
2620 fputc ('\n', file);
2621 break;
2622
2623 case V850_NOTE_SIMD_INFO:
2624 fprintf (file, _("SIMD use: "));
2625 switch (value)
2626 {
2627 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2628 case 0: fprintf (file, _("no")); break;
2629 default: fprintf (file, _("unknown: %x"), value); break;
2630 }
2631 fputc ('\n', file);
2632 break;
2633
2634 case V850_NOTE_CACHE_INFO:
2635 fprintf (file, _("CACHE use: "));
2636 switch (value)
2637 {
2638 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2639 case 0: fprintf (file, _("no")); break;
2640 default: fprintf (file, _("unknown: %x"), value); break;
2641 }
2642 fputc ('\n', file);
2643 break;
2644
2645 case V850_NOTE_MMU_INFO:
2646 fprintf (file, _("MMU use: "));
2647 switch (value)
2648 {
2649 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2650 case 0: fprintf (file, _("no")); break;
2651 default: fprintf (file, _("unknown: %x"), value); break;
2652 }
2653 fputc ('\n', file);
2654 break;
2655
2656 default:
2657 BFD_ASSERT (0);
2658 }
2659 }
2660
2661 static void
2662 v850_elf_print_notes (bfd * abfd, FILE * file)
2663 {
2664 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2665 enum v850_notes id;
2666
2667 if (notes == NULL || notes->contents == NULL)
2668 return;
2669
2670 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2671
2672 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2673 print_v850_note (abfd, file, notes->contents, id);
2674 }
2675
2676 /* Set the right machine number and architecture. */
2677
2678 static bfd_boolean
2679 v850_elf_object_p (bfd *abfd)
2680 {
2681 enum bfd_architecture arch;
2682 unsigned long mach;
2683
2684 switch (elf_elfheader (abfd)->e_machine)
2685 {
2686 case EM_V800:
2687 arch = bfd_arch_v850_rh850;
2688 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2689 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2690 break;
2691
2692 case EM_CYGNUS_V850:
2693 case EM_V850:
2694 arch = bfd_arch_v850;
2695 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2696 {
2697 default:
2698 case E_V850_ARCH: mach = bfd_mach_v850; break;
2699 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2700 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2701 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2702 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2703 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2704 }
2705 break;
2706
2707 default:
2708 return FALSE;
2709 }
2710
2711 return bfd_default_set_arch_mach (abfd, arch, mach);
2712 }
2713
2714 /* Store the machine number in the flags field. */
2715
2716 static void
2717 v850_elf_final_write_processing (bfd *abfd,
2718 bfd_boolean linker ATTRIBUTE_UNUSED)
2719 {
2720 unsigned long val;
2721
2722 switch (bfd_get_arch (abfd))
2723 {
2724 case bfd_arch_v850_rh850:
2725 val = EF_RH850_ABI;
2726 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2727 val |= EF_V800_850E3;
2728 elf_elfheader (abfd)->e_flags |= val;
2729 break;
2730
2731 case bfd_arch_v850:
2732 switch (bfd_get_mach (abfd))
2733 {
2734 default:
2735 case bfd_mach_v850: val = E_V850_ARCH; break;
2736 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2737 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2738 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2739 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2740 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2741 }
2742 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2743 elf_elfheader (abfd)->e_flags |= val;
2744 break;
2745 default:
2746 break;
2747 }
2748 }
2749
2750 /* Function to keep V850 specific file flags. */
2751
2752 static bfd_boolean
2753 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2754 {
2755 BFD_ASSERT (!elf_flags_init (abfd)
2756 || elf_elfheader (abfd)->e_flags == flags);
2757
2758 elf_elfheader (abfd)->e_flags = flags;
2759 elf_flags_init (abfd) = TRUE;
2760 return TRUE;
2761 }
2762
2763 /* Merge backend specific data from an object file
2764 to the output object file when linking. */
2765
2766 static bfd_boolean
2767 v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2768 {
2769 flagword out_flags;
2770 flagword in_flags;
2771 bfd_boolean result = TRUE;
2772
2773 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2774 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2775 return TRUE;
2776
2777 result &= v850_elf_merge_notes (ibfd, obfd);
2778
2779 in_flags = elf_elfheader (ibfd)->e_flags;
2780 out_flags = elf_elfheader (obfd)->e_flags;
2781
2782 if (! elf_flags_init (obfd))
2783 {
2784 /* If the input is the default architecture then do not
2785 bother setting the flags for the output architecture,
2786 instead allow future merges to do this. If no future
2787 merges ever set these flags then they will retain their
2788 unitialised values, which surprise surprise, correspond
2789 to the default values. */
2790 if (bfd_get_arch_info (ibfd)->the_default)
2791 return TRUE;
2792
2793 elf_flags_init (obfd) = TRUE;
2794 elf_elfheader (obfd)->e_flags = in_flags;
2795
2796 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2797 && bfd_get_arch_info (obfd)->the_default)
2798 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2799
2800 return result;
2801 }
2802
2803 /* Check flag compatibility. */
2804 if (in_flags == out_flags)
2805 return result;
2806
2807 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2808 {
2809 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2810 {
2811 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2812 ibfd);
2813 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2814 }
2815
2816 return result;
2817 }
2818
2819 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2820 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2821 {
2822 /* Allow earlier architecture binaries to be linked with later binaries.
2823 Set the output binary to the later architecture, except for v850e1,
2824 which we set to v850e. */
2825 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2826 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2827 return result;
2828
2829 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2830 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2831 {
2832 elf_elfheader (obfd)->e_flags =
2833 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2834 return result;
2835 }
2836
2837 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2838 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2839 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2840 {
2841 elf_elfheader (obfd)->e_flags =
2842 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2843 return result;
2844 }
2845
2846 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2847 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2848 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2849 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2850 {
2851 elf_elfheader (obfd)->e_flags =
2852 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2853 return result;
2854 }
2855
2856 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2857 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2858 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2859 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2860 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2861 {
2862 elf_elfheader (obfd)->e_flags =
2863 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2864 return result;
2865 }
2866
2867 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2868 ibfd);
2869 }
2870
2871 return result;
2872 }
2873
2874 /* Display the flags field. */
2875
2876 static bfd_boolean
2877 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2878 {
2879 FILE * file = (FILE *) ptr;
2880
2881 BFD_ASSERT (abfd != NULL && ptr != NULL);
2882
2883 _bfd_elf_print_private_bfd_data (abfd, ptr);
2884
2885 /* xgettext:c-format. */
2886 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2887
2888 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2889 {
2890 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2891 fprintf (file, _("unknown v850 architecture"));
2892 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2893 fprintf (file, _("v850 E3 architecture"));
2894 else
2895 fprintf (file, _("v850 architecture"));
2896 }
2897 else
2898 {
2899 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2900 {
2901 default:
2902 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2903 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2904 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2905 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2906 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2907 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2908 }
2909 }
2910
2911 fputc ('\n', file);
2912
2913 v850_elf_print_notes (abfd, file);
2914
2915 return TRUE;
2916 }
2917
2918 /* V850 ELF uses four common sections. One is the usual one, and the
2919 others are for (small) objects in one of the special data areas:
2920 small, tiny and zero. All the objects are kept together, and then
2921 referenced via the gp register, the ep register or the r0 register
2922 respectively, which yields smaller, faster assembler code. This
2923 approach is copied from elf32-mips.c. */
2924
2925 static asection v850_elf_scom_section;
2926 static asymbol v850_elf_scom_symbol;
2927 static asymbol * v850_elf_scom_symbol_ptr;
2928 static asection v850_elf_tcom_section;
2929 static asymbol v850_elf_tcom_symbol;
2930 static asymbol * v850_elf_tcom_symbol_ptr;
2931 static asection v850_elf_zcom_section;
2932 static asymbol v850_elf_zcom_symbol;
2933 static asymbol * v850_elf_zcom_symbol_ptr;
2934
2935 /* Given a BFD section, try to locate the
2936 corresponding ELF section index. */
2937
2938 static bfd_boolean
2939 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2940 asection *sec,
2941 int *retval)
2942 {
2943 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2944 *retval = SHN_V850_SCOMMON;
2945 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2946 *retval = SHN_V850_TCOMMON;
2947 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2948 *retval = SHN_V850_ZCOMMON;
2949 else
2950 return FALSE;
2951
2952 return TRUE;
2953 }
2954
2955 /* Handle the special V850 section numbers that a symbol may use. */
2956
2957 static void
2958 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2959 {
2960 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2961 unsigned int indx;
2962
2963 indx = elfsym->internal_elf_sym.st_shndx;
2964
2965 /* If the section index is an "ordinary" index, then it may
2966 refer to a v850 specific section created by the assembler.
2967 Check the section's type and change the index it matches.
2968
2969 FIXME: Should we alter the st_shndx field as well ? */
2970
2971 if (indx < elf_numsections (abfd))
2972 switch (elf_elfsections (abfd)[indx]->sh_type)
2973 {
2974 case SHT_V850_SCOMMON:
2975 indx = SHN_V850_SCOMMON;
2976 break;
2977
2978 case SHT_V850_TCOMMON:
2979 indx = SHN_V850_TCOMMON;
2980 break;
2981
2982 case SHT_V850_ZCOMMON:
2983 indx = SHN_V850_ZCOMMON;
2984 break;
2985
2986 default:
2987 break;
2988 }
2989
2990 switch (indx)
2991 {
2992 case SHN_V850_SCOMMON:
2993 if (v850_elf_scom_section.name == NULL)
2994 {
2995 /* Initialize the small common section. */
2996 v850_elf_scom_section.name = ".scommon";
2997 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2998 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2999 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
3000 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
3001 v850_elf_scom_symbol.name = ".scommon";
3002 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
3003 v850_elf_scom_symbol.section = & v850_elf_scom_section;
3004 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
3005 }
3006 asym->section = & v850_elf_scom_section;
3007 asym->value = elfsym->internal_elf_sym.st_size;
3008 break;
3009
3010 case SHN_V850_TCOMMON:
3011 if (v850_elf_tcom_section.name == NULL)
3012 {
3013 /* Initialize the tcommon section. */
3014 v850_elf_tcom_section.name = ".tcommon";
3015 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3016 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3017 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3018 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3019 v850_elf_tcom_symbol.name = ".tcommon";
3020 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3021 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3022 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3023 }
3024 asym->section = & v850_elf_tcom_section;
3025 asym->value = elfsym->internal_elf_sym.st_size;
3026 break;
3027
3028 case SHN_V850_ZCOMMON:
3029 if (v850_elf_zcom_section.name == NULL)
3030 {
3031 /* Initialize the zcommon section. */
3032 v850_elf_zcom_section.name = ".zcommon";
3033 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3034 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3035 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3036 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3037 v850_elf_zcom_symbol.name = ".zcommon";
3038 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3039 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3040 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3041 }
3042 asym->section = & v850_elf_zcom_section;
3043 asym->value = elfsym->internal_elf_sym.st_size;
3044 break;
3045 }
3046 }
3047
3048 /* Hook called by the linker routine which adds symbols from an object
3049 file. We must handle the special v850 section numbers here. */
3050
3051 static bfd_boolean
3052 v850_elf_add_symbol_hook (bfd *abfd,
3053 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3054 Elf_Internal_Sym *sym,
3055 const char **namep ATTRIBUTE_UNUSED,
3056 flagword *flagsp ATTRIBUTE_UNUSED,
3057 asection **secp,
3058 bfd_vma *valp)
3059 {
3060 unsigned int indx = sym->st_shndx;
3061
3062 /* If the section index is an "ordinary" index, then it may
3063 refer to a v850 specific section created by the assembler.
3064 Check the section's type and change the index it matches.
3065
3066 FIXME: Should we alter the st_shndx field as well ? */
3067
3068 if (indx < elf_numsections (abfd))
3069 switch (elf_elfsections (abfd)[indx]->sh_type)
3070 {
3071 case SHT_V850_SCOMMON:
3072 indx = SHN_V850_SCOMMON;
3073 break;
3074
3075 case SHT_V850_TCOMMON:
3076 indx = SHN_V850_TCOMMON;
3077 break;
3078
3079 case SHT_V850_ZCOMMON:
3080 indx = SHN_V850_ZCOMMON;
3081 break;
3082
3083 default:
3084 break;
3085 }
3086
3087 switch (indx)
3088 {
3089 case SHN_V850_SCOMMON:
3090 *secp = bfd_make_section_old_way (abfd, ".scommon");
3091 (*secp)->flags |= SEC_IS_COMMON;
3092 *valp = sym->st_size;
3093 break;
3094
3095 case SHN_V850_TCOMMON:
3096 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3097 (*secp)->flags |= SEC_IS_COMMON;
3098 *valp = sym->st_size;
3099 break;
3100
3101 case SHN_V850_ZCOMMON:
3102 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3103 (*secp)->flags |= SEC_IS_COMMON;
3104 *valp = sym->st_size;
3105 break;
3106 }
3107
3108 return TRUE;
3109 }
3110
3111 static int
3112 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3113 const char *name ATTRIBUTE_UNUSED,
3114 Elf_Internal_Sym *sym,
3115 asection *input_sec,
3116 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3117 {
3118 /* If we see a common symbol, which implies a relocatable link, then
3119 if a symbol was in a special common section in an input file, mark
3120 it as a special common in the output file. */
3121
3122 if (sym->st_shndx == SHN_COMMON)
3123 {
3124 if (strcmp (input_sec->name, ".scommon") == 0)
3125 sym->st_shndx = SHN_V850_SCOMMON;
3126 else if (strcmp (input_sec->name, ".tcommon") == 0)
3127 sym->st_shndx = SHN_V850_TCOMMON;
3128 else if (strcmp (input_sec->name, ".zcommon") == 0)
3129 sym->st_shndx = SHN_V850_ZCOMMON;
3130 }
3131
3132 /* The price we pay for using h->other unused bits as flags in the
3133 linker is cleaning up after ourselves. */
3134
3135 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3136 | V850_OTHER_ERROR);
3137
3138 return 1;
3139 }
3140
3141 static bfd_boolean
3142 v850_elf_section_from_shdr (bfd *abfd,
3143 Elf_Internal_Shdr *hdr,
3144 const char *name,
3145 int shindex)
3146 {
3147 /* There ought to be a place to keep ELF backend specific flags, but
3148 at the moment there isn't one. We just keep track of the
3149 sections by their name, instead. */
3150
3151 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3152 return FALSE;
3153
3154 switch (hdr->sh_type)
3155 {
3156 case SHT_V850_SCOMMON:
3157 case SHT_V850_TCOMMON:
3158 case SHT_V850_ZCOMMON:
3159 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3160 (bfd_get_section_flags (abfd,
3161 hdr->bfd_section)
3162 | SEC_IS_COMMON)))
3163 return FALSE;
3164 }
3165
3166 return TRUE;
3167 }
3168
3169 /* Set the correct type for a V850 ELF section. We do this
3170 by the section name, which is a hack, but ought to work. */
3171
3172 static bfd_boolean
3173 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3174 Elf_Internal_Shdr *hdr,
3175 asection *sec)
3176 {
3177 const char * name;
3178
3179 name = bfd_get_section_name (abfd, sec);
3180
3181 if (strcmp (name, ".scommon") == 0)
3182 hdr->sh_type = SHT_V850_SCOMMON;
3183 else if (strcmp (name, ".tcommon") == 0)
3184 hdr->sh_type = SHT_V850_TCOMMON;
3185 else if (strcmp (name, ".zcommon") == 0)
3186 hdr->sh_type = SHT_V850_ZCOMMON;
3187 /* Tweak the section type of .note.renesas. */
3188 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3189 {
3190 hdr->sh_type = SHT_RENESAS_INFO;
3191 hdr->sh_entsize = SIZEOF_V850_NOTE;
3192 }
3193
3194 return TRUE;
3195 }
3196
3197 /* Delete some bytes from a section while relaxing. */
3198
3199 static bfd_boolean
3200 v850_elf_relax_delete_bytes (bfd *abfd,
3201 asection *sec,
3202 bfd_vma addr,
3203 bfd_vma toaddr,
3204 int count)
3205 {
3206 Elf_Internal_Shdr *symtab_hdr;
3207 Elf32_External_Sym *extsyms;
3208 Elf32_External_Sym *esym;
3209 Elf32_External_Sym *esymend;
3210 int sym_index;
3211 unsigned int sec_shndx;
3212 bfd_byte *contents;
3213 Elf_Internal_Rela *irel;
3214 Elf_Internal_Rela *irelend;
3215 struct elf_link_hash_entry *sym_hash;
3216 Elf_External_Sym_Shndx *shndx;
3217
3218 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3219 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3220
3221 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3222
3223 contents = elf_section_data (sec)->this_hdr.contents;
3224
3225 /* The deletion must stop at the next ALIGN reloc for an alignment
3226 power larger than the number of bytes we are deleting. */
3227
3228 /* Actually delete the bytes. */
3229 #if (DEBUG_RELAX & 2)
3230 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3231 sec->name, addr, toaddr, count );
3232 #endif
3233 memmove (contents + addr, contents + addr + count,
3234 toaddr - addr - count);
3235 memset (contents + toaddr-count, 0, count);
3236
3237 /* Adjust all the relocs. */
3238 irel = elf_section_data (sec)->relocs;
3239 irelend = irel + sec->reloc_count;
3240 if (elf_symtab_shndx_list (abfd))
3241 {
3242 Elf_Internal_Shdr *shndx_hdr;
3243
3244 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3245 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3246 }
3247 else
3248 {
3249 shndx = NULL;
3250 }
3251
3252 for (; irel < irelend; irel++)
3253 {
3254 bfd_vma raddr, paddr, symval;
3255 Elf_Internal_Sym isym;
3256
3257 /* Get the new reloc address. */
3258 raddr = irel->r_offset;
3259 if ((raddr >= (addr + count) && raddr < toaddr))
3260 irel->r_offset -= count;
3261
3262 if (raddr >= addr && raddr < addr + count)
3263 {
3264 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3265 (int) R_V850_NONE);
3266 continue;
3267 }
3268
3269 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3270 continue;
3271
3272 bfd_elf32_swap_symbol_in (abfd,
3273 extsyms + ELF32_R_SYM (irel->r_info),
3274 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3275 & isym);
3276
3277 if (isym.st_shndx != sec_shndx)
3278 continue;
3279
3280 /* Get the value of the symbol referred to by the reloc. */
3281 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3282 {
3283 symval = isym.st_value;
3284 #if (DEBUG_RELAX & 2)
3285 {
3286 char * name = bfd_elf_string_from_elf_section
3287 (abfd, symtab_hdr->sh_link, isym.st_name);
3288 fprintf (stderr,
3289 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3290 sec->name, name, isym.st_name,
3291 sec->output_section->vma, sec->output_offset,
3292 isym.st_value, irel->r_addend);
3293 }
3294 #endif
3295 }
3296 else
3297 {
3298 unsigned long indx;
3299 struct elf_link_hash_entry * h;
3300
3301 /* An external symbol. */
3302 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3303
3304 h = elf_sym_hashes (abfd) [indx];
3305 BFD_ASSERT (h != NULL);
3306
3307 symval = h->root.u.def.value;
3308 #if (DEBUG_RELAX & 2)
3309 fprintf (stderr,
3310 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3311 sec->name, h->root.root.string, h->root.u.def.value,
3312 sec->output_section->vma, sec->output_offset, irel->r_addend);
3313 #endif
3314 }
3315
3316 paddr = symval + irel->r_addend;
3317
3318 if ( (symval >= addr + count && symval < toaddr)
3319 && (paddr < addr + count || paddr >= toaddr))
3320 irel->r_addend += count;
3321 else if ( (symval < addr + count || symval >= toaddr)
3322 && (paddr >= addr + count && paddr < toaddr))
3323 irel->r_addend -= count;
3324 }
3325
3326 /* Adjust the local symbols defined in this section. */
3327 esym = extsyms;
3328 esymend = esym + symtab_hdr->sh_info;
3329
3330 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3331 {
3332 Elf_Internal_Sym isym;
3333
3334 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3335
3336 if (isym.st_shndx == sec_shndx
3337 && isym.st_value >= addr + count
3338 && isym.st_value < toaddr)
3339 {
3340 isym.st_value -= count;
3341
3342 if (isym.st_value + isym.st_size >= toaddr)
3343 isym.st_size += count;
3344
3345 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3346 }
3347 else if (isym.st_shndx == sec_shndx
3348 && isym.st_value < addr + count)
3349 {
3350 if (isym.st_value+isym.st_size >= addr + count
3351 && isym.st_value+isym.st_size < toaddr)
3352 isym.st_size -= count;
3353
3354 if (isym.st_value >= addr
3355 && isym.st_value < addr + count)
3356 isym.st_value = addr;
3357
3358 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3359 }
3360 }
3361
3362 /* Now adjust the global symbols defined in this section. */
3363 esym = extsyms + symtab_hdr->sh_info;
3364 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3365
3366 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3367 {
3368 Elf_Internal_Sym isym;
3369
3370 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3371 sym_hash = elf_sym_hashes (abfd) [sym_index];
3372
3373 if (isym.st_shndx == sec_shndx
3374 && ((sym_hash)->root.type == bfd_link_hash_defined
3375 || (sym_hash)->root.type == bfd_link_hash_defweak)
3376 && (sym_hash)->root.u.def.section == sec
3377 && (sym_hash)->root.u.def.value >= addr + count
3378 && (sym_hash)->root.u.def.value < toaddr)
3379 {
3380 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3381 {
3382 isym.st_size += count;
3383 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3384 }
3385
3386 (sym_hash)->root.u.def.value -= count;
3387 }
3388 else if (isym.st_shndx == sec_shndx
3389 && ((sym_hash)->root.type == bfd_link_hash_defined
3390 || (sym_hash)->root.type == bfd_link_hash_defweak)
3391 && (sym_hash)->root.u.def.section == sec
3392 && (sym_hash)->root.u.def.value < addr + count)
3393 {
3394 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3395 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3396 isym.st_size -= count;
3397
3398 if ((sym_hash)->root.u.def.value >= addr
3399 && (sym_hash)->root.u.def.value < addr + count)
3400 (sym_hash)->root.u.def.value = addr;
3401
3402 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3403 }
3404
3405 if (shndx)
3406 ++ shndx;
3407 }
3408
3409 return TRUE;
3410 }
3411
3412 #define NOP_OPCODE (0x0000)
3413 #define MOVHI 0x0640 /* 4byte. */
3414 #define MOVHI_MASK 0x07e0
3415 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3416 #define MOVHI_R2(insn) ((insn) >> 11)
3417 #define MOVEA 0x0620 /* 2byte. */
3418 #define MOVEA_MASK 0x07e0
3419 #define MOVEA_R1(insn) ((insn) & 0x1f)
3420 #define MOVEA_R2(insn) ((insn) >> 11)
3421 #define JARL_4 0x00040780 /* 4byte. */
3422 #define JARL_4_MASK 0xFFFF07FF
3423 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3424 #define ADD_I 0x0240 /* 2byte. */
3425 #define ADD_I_MASK 0x07e0
3426 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3427 #define ADD_R2(insn) ((insn) >> 11)
3428 #define JMP_R 0x0060 /* 2byte. */
3429 #define JMP_R_MASK 0xFFE0
3430 #define JMP_R1(insn) ((insn) & 0x1f)
3431
3432 static bfd_boolean
3433 v850_elf_relax_section (bfd *abfd,
3434 asection *sec,
3435 struct bfd_link_info *link_info,
3436 bfd_boolean *again)
3437 {
3438 Elf_Internal_Shdr *symtab_hdr;
3439 Elf_Internal_Rela *internal_relocs;
3440 Elf_Internal_Rela *irel;
3441 Elf_Internal_Rela *irelend;
3442 Elf_Internal_Rela *irelalign = NULL;
3443 Elf_Internal_Sym *isymbuf = NULL;
3444 bfd_byte *contents = NULL;
3445 bfd_vma addr = 0;
3446 bfd_vma toaddr;
3447 int align_pad_size = 0;
3448 bfd_boolean result = TRUE;
3449
3450 *again = FALSE;
3451
3452 if (bfd_link_relocatable (link_info)
3453 || (sec->flags & SEC_RELOC) == 0
3454 || sec->reloc_count == 0)
3455 return TRUE;
3456
3457 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3458
3459 internal_relocs = (_bfd_elf_link_read_relocs
3460 (abfd, sec, NULL, NULL, link_info->keep_memory));
3461 if (internal_relocs == NULL)
3462 goto error_return;
3463
3464 irelend = internal_relocs + sec->reloc_count;
3465
3466 while (addr < sec->size)
3467 {
3468 toaddr = sec->size;
3469
3470 for (irel = internal_relocs; irel < irelend; irel ++)
3471 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3472 && irel->r_offset > addr
3473 && irel->r_offset < toaddr)
3474 toaddr = irel->r_offset;
3475
3476 #ifdef DEBUG_RELAX
3477 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3478 addr, toaddr, align_pad_size);
3479 #endif
3480 if (irelalign)
3481 {
3482 bfd_vma alignto;
3483 bfd_vma alignmoveto;
3484
3485 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3486 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3487
3488 if (alignmoveto < alignto)
3489 {
3490 bfd_vma i;
3491
3492 align_pad_size = alignto - alignmoveto;
3493 #ifdef DEBUG_RELAX
3494 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3495 alignmoveto, toaddr, align_pad_size);
3496 #endif
3497 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3498 toaddr, align_pad_size))
3499 goto error_return;
3500
3501 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3502 (i + 1) < toaddr; i += 2)
3503 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3504
3505 addr = alignmoveto;
3506 }
3507 else
3508 align_pad_size = 0;
3509 }
3510
3511 for (irel = internal_relocs; irel < irelend; irel++)
3512 {
3513 bfd_vma laddr;
3514 bfd_vma addend;
3515 bfd_vma symval;
3516 int insn[5];
3517 int no_match = -1;
3518 Elf_Internal_Rela *hi_irelfn;
3519 Elf_Internal_Rela *lo_irelfn;
3520 Elf_Internal_Rela *irelcall;
3521 bfd_signed_vma foff;
3522 unsigned int r_type;
3523
3524 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3525 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3526 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3527 continue;
3528
3529 #ifdef DEBUG_RELAX
3530 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3531 irel->r_info,
3532 irel->r_offset,
3533 irel->r_addend );
3534 #endif
3535
3536 /* Get the section contents. */
3537 if (contents == NULL)
3538 {
3539 if (elf_section_data (sec)->this_hdr.contents != NULL)
3540 contents = elf_section_data (sec)->this_hdr.contents;
3541 else
3542 {
3543 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3544 goto error_return;
3545 }
3546 }
3547
3548 /* Read this BFD's local symbols if we haven't done so already. */
3549 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3550 {
3551 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3552 if (isymbuf == NULL)
3553 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3554 symtab_hdr->sh_info, 0,
3555 NULL, NULL, NULL);
3556 if (isymbuf == NULL)
3557 goto error_return;
3558 }
3559
3560 laddr = irel->r_offset;
3561
3562 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3563 {
3564 /* Check code for -mlong-calls output. */
3565 if (laddr + 16 <= (bfd_vma) sec->size)
3566 {
3567 insn[0] = bfd_get_16 (abfd, contents + laddr);
3568 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3569 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3570 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3571 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3572
3573 if ((insn[0] & MOVHI_MASK) != MOVHI
3574 || MOVHI_R1 (insn[0]) != 0)
3575 no_match = 0;
3576
3577 if (no_match < 0
3578 && ((insn[1] & MOVEA_MASK) != MOVEA
3579 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3580 no_match = 1;
3581
3582 if (no_match < 0
3583 && (insn[2] & JARL_4_MASK) != JARL_4)
3584 no_match = 2;
3585
3586 if (no_match < 0
3587 && ((insn[3] & ADD_I_MASK) != ADD_I
3588 || ADD_I5 (insn[3]) != 4
3589 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3590 no_match = 3;
3591
3592 if (no_match < 0
3593 && ((insn[4] & JMP_R_MASK) != JMP_R
3594 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3595 no_match = 4;
3596 }
3597 else
3598 {
3599 ((*_bfd_error_handler)
3600 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
3601 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3602
3603 continue;
3604 }
3605
3606 if (no_match >= 0)
3607 {
3608 ((*_bfd_error_handler)
3609 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
3610 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3611
3612 continue;
3613 }
3614
3615 /* Get the reloc for the address from which the register is
3616 being loaded. This reloc will tell us which function is
3617 actually being called. */
3618
3619 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3620 {
3621 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3622
3623 if (hi_irelfn->r_offset == laddr + 2
3624 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3625 break;
3626 }
3627
3628 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3629 {
3630 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3631
3632 if (lo_irelfn->r_offset == laddr + 6
3633 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3634 break;
3635 }
3636
3637 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3638 {
3639 r_type = ELF32_R_TYPE (irelcall->r_info);
3640
3641 if (irelcall->r_offset == laddr + 8
3642 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3643 break;
3644 }
3645
3646 if ( hi_irelfn == irelend
3647 || lo_irelfn == irelend
3648 || irelcall == irelend)
3649 {
3650 ((*_bfd_error_handler)
3651 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
3652 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3653
3654 continue;
3655 }
3656
3657 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3658 {
3659 Elf_Internal_Sym * isym;
3660
3661 /* A local symbol. */
3662 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3663
3664 symval = isym->st_value;
3665 }
3666 else
3667 {
3668 unsigned long indx;
3669 struct elf_link_hash_entry * h;
3670
3671 /* An external symbol. */
3672 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3673 h = elf_sym_hashes (abfd)[indx];
3674 BFD_ASSERT (h != NULL);
3675
3676 if ( h->root.type != bfd_link_hash_defined
3677 && h->root.type != bfd_link_hash_defweak)
3678 /* This appears to be a reference to an undefined
3679 symbol. Just ignore it--it will be caught by the
3680 regular reloc processing. */
3681 continue;
3682
3683 symval = h->root.u.def.value;
3684 }
3685
3686 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3687 {
3688 ((*_bfd_error_handler)
3689 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
3690 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
3691
3692 continue;
3693 }
3694
3695 /* Get the value of the symbol referred to by the reloc. */
3696 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3697 {
3698 Elf_Internal_Sym *isym;
3699 asection *sym_sec;
3700
3701 /* A local symbol. */
3702 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3703
3704 if (isym->st_shndx == SHN_UNDEF)
3705 sym_sec = bfd_und_section_ptr;
3706 else if (isym->st_shndx == SHN_ABS)
3707 sym_sec = bfd_abs_section_ptr;
3708 else if (isym->st_shndx == SHN_COMMON)
3709 sym_sec = bfd_com_section_ptr;
3710 else
3711 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3712 symval = (isym->st_value
3713 + sym_sec->output_section->vma
3714 + sym_sec->output_offset);
3715 }
3716 else
3717 {
3718 unsigned long indx;
3719 struct elf_link_hash_entry *h;
3720
3721 /* An external symbol. */
3722 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3723 h = elf_sym_hashes (abfd)[indx];
3724 BFD_ASSERT (h != NULL);
3725
3726 if ( h->root.type != bfd_link_hash_defined
3727 && h->root.type != bfd_link_hash_defweak)
3728 /* This appears to be a reference to an undefined
3729 symbol. Just ignore it--it will be caught by the
3730 regular reloc processing. */
3731 continue;
3732
3733 symval = (h->root.u.def.value
3734 + h->root.u.def.section->output_section->vma
3735 + h->root.u.def.section->output_offset);
3736 }
3737
3738 addend = irel->r_addend;
3739
3740 foff = (symval + addend
3741 - (irel->r_offset
3742 + sec->output_section->vma
3743 + sec->output_offset
3744 + 4));
3745 #ifdef DEBUG_RELAX
3746 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3747 irel->r_offset,
3748 (irel->r_offset
3749 + sec->output_section->vma
3750 + sec->output_offset),
3751 symval, addend, foff);
3752 #endif
3753
3754 if (foff < -0x100000 || foff >= 0x100000)
3755 /* After all that work, we can't shorten this function call. */
3756 continue;
3757
3758 /* For simplicity of coding, we are going to modify the section
3759 contents, the section relocs, and the BFD symbol table. We
3760 must tell the rest of the code not to free up this
3761 information. It would be possible to instead create a table
3762 of changes which have to be made, as is done in coff-mips.c;
3763 that would be more work, but would require less memory when
3764 the linker is run. */
3765 elf_section_data (sec)->relocs = internal_relocs;
3766 elf_section_data (sec)->this_hdr.contents = contents;
3767 symtab_hdr->contents = (bfd_byte *) isymbuf;
3768
3769 /* Replace the long call with a jarl. */
3770 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3771 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3772 else
3773 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3774
3775 addend = 0;
3776
3777 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3778 /* If this needs to be changed because of future relaxing,
3779 it will be handled here like other internal IND12W
3780 relocs. */
3781 bfd_put_32 (abfd,
3782 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3783 contents + irel->r_offset);
3784 else
3785 /* We can't fully resolve this yet, because the external
3786 symbol value may be changed by future relaxing.
3787 We let the final link phase handle it. */
3788 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3789 contents + irel->r_offset);
3790
3791 hi_irelfn->r_info =
3792 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3793 lo_irelfn->r_info =
3794 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3795 irelcall->r_info =
3796 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3797
3798 if (! v850_elf_relax_delete_bytes (abfd, sec,
3799 irel->r_offset + 4, toaddr, 12))
3800 goto error_return;
3801
3802 align_pad_size += 12;
3803 }
3804 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3805 {
3806 /* Check code for -mlong-jumps output. */
3807 if (laddr + 10 <= (bfd_vma) sec->size)
3808 {
3809 insn[0] = bfd_get_16 (abfd, contents + laddr);
3810 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3811 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3812
3813 if ((insn[0] & MOVHI_MASK) != MOVHI
3814 || MOVHI_R1 (insn[0]) != 0)
3815 no_match = 0;
3816
3817 if (no_match < 0
3818 && ((insn[1] & MOVEA_MASK) != MOVEA
3819 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3820 no_match = 1;
3821
3822 if (no_match < 0
3823 && ((insn[2] & JMP_R_MASK) != JMP_R
3824 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3825 no_match = 4;
3826 }
3827 else
3828 {
3829 ((*_bfd_error_handler)
3830 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
3831 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3832
3833 continue;
3834 }
3835
3836 if (no_match >= 0)
3837 {
3838 ((*_bfd_error_handler)
3839 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
3840 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3841
3842 continue;
3843 }
3844
3845 /* Get the reloc for the address from which the register is
3846 being loaded. This reloc will tell us which function is
3847 actually being called. */
3848 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3849 {
3850 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3851
3852 if (hi_irelfn->r_offset == laddr + 2
3853 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3854 break;
3855 }
3856
3857 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3858 {
3859 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3860
3861 if (lo_irelfn->r_offset == laddr + 6
3862 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3863 break;
3864 }
3865
3866 if ( hi_irelfn == irelend
3867 || lo_irelfn == irelend)
3868 {
3869 ((*_bfd_error_handler)
3870 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
3871 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3872
3873 continue;
3874 }
3875
3876 /* Get the value of the symbol referred to by the reloc. */
3877 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3878 {
3879 Elf_Internal_Sym * isym;
3880 asection * sym_sec;
3881
3882 /* A local symbol. */
3883 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3884
3885 if (isym->st_shndx == SHN_UNDEF)
3886 sym_sec = bfd_und_section_ptr;
3887 else if (isym->st_shndx == SHN_ABS)
3888 sym_sec = bfd_abs_section_ptr;
3889 else if (isym->st_shndx == SHN_COMMON)
3890 sym_sec = bfd_com_section_ptr;
3891 else
3892 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3893 symval = (isym->st_value
3894 + sym_sec->output_section->vma
3895 + sym_sec->output_offset);
3896 #ifdef DEBUG_RELAX
3897 {
3898 char * name = bfd_elf_string_from_elf_section
3899 (abfd, symtab_hdr->sh_link, isym->st_name);
3900
3901 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3902 sym_sec->name, name, isym->st_name,
3903 sym_sec->output_section->vma,
3904 sym_sec->output_offset,
3905 isym->st_value, irel->r_addend);
3906 }
3907 #endif
3908 }
3909 else
3910 {
3911 unsigned long indx;
3912 struct elf_link_hash_entry * h;
3913
3914 /* An external symbol. */
3915 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3916 h = elf_sym_hashes (abfd)[indx];
3917 BFD_ASSERT (h != NULL);
3918
3919 if ( h->root.type != bfd_link_hash_defined
3920 && h->root.type != bfd_link_hash_defweak)
3921 /* This appears to be a reference to an undefined
3922 symbol. Just ignore it--it will be caught by the
3923 regular reloc processing. */
3924 continue;
3925
3926 symval = (h->root.u.def.value
3927 + h->root.u.def.section->output_section->vma
3928 + h->root.u.def.section->output_offset);
3929 #ifdef DEBUG_RELAX
3930 fprintf (stderr,
3931 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3932 sec->name, h->root.root.string, h->root.u.def.value,
3933 sec->output_section->vma, sec->output_offset, irel->r_addend);
3934 #endif
3935 }
3936
3937 addend = irel->r_addend;
3938
3939 foff = (symval + addend
3940 - (irel->r_offset
3941 + sec->output_section->vma
3942 + sec->output_offset
3943 + 4));
3944 #ifdef DEBUG_RELAX
3945 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3946 irel->r_offset,
3947 (irel->r_offset
3948 + sec->output_section->vma
3949 + sec->output_offset),
3950 symval, addend, foff);
3951 #endif
3952 if (foff < -0x100000 || foff >= 0x100000)
3953 /* After all that work, we can't shorten this function call. */
3954 continue;
3955
3956 /* For simplicity of coding, we are going to modify the section
3957 contents, the section relocs, and the BFD symbol table. We
3958 must tell the rest of the code not to free up this
3959 information. It would be possible to instead create a table
3960 of changes which have to be made, as is done in coff-mips.c;
3961 that would be more work, but would require less memory when
3962 the linker is run. */
3963 elf_section_data (sec)->relocs = internal_relocs;
3964 elf_section_data (sec)->this_hdr.contents = contents;
3965 symtab_hdr->contents = (bfd_byte *) isymbuf;
3966
3967 if (foff < -0x100 || foff >= 0x100)
3968 {
3969 /* Replace the long jump with a jr. */
3970
3971 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3972 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3973 else
3974 irel->r_info =
3975 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3976
3977 irel->r_addend = addend;
3978 addend = 0;
3979
3980 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3981 /* If this needs to be changed because of future relaxing,
3982 it will be handled here like other internal IND12W
3983 relocs. */
3984 bfd_put_32 (abfd,
3985 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3986 contents + irel->r_offset);
3987 else
3988 /* We can't fully resolve this yet, because the external
3989 symbol value may be changed by future relaxing.
3990 We let the final link phase handle it. */
3991 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3992
3993 hi_irelfn->r_info =
3994 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3995 lo_irelfn->r_info =
3996 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3997 if (!v850_elf_relax_delete_bytes (abfd, sec,
3998 irel->r_offset + 4, toaddr, 6))
3999 goto error_return;
4000
4001 align_pad_size += 6;
4002 }
4003 else
4004 {
4005 /* Replace the long jump with a br. */
4006
4007 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4008 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4009 else
4010 irel->r_info =
4011 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4012
4013 irel->r_addend = addend;
4014 addend = 0;
4015
4016 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4017 /* If this needs to be changed because of future relaxing,
4018 it will be handled here like other internal IND12W
4019 relocs. */
4020 bfd_put_16 (abfd,
4021 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4022 contents + irel->r_offset);
4023 else
4024 /* We can't fully resolve this yet, because the external
4025 symbol value may be changed by future relaxing.
4026 We let the final link phase handle it. */
4027 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4028
4029 hi_irelfn->r_info =
4030 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4031 lo_irelfn->r_info =
4032 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4033 if (!v850_elf_relax_delete_bytes (abfd, sec,
4034 irel->r_offset + 2, toaddr, 8))
4035 goto error_return;
4036
4037 align_pad_size += 8;
4038 }
4039 }
4040 }
4041
4042 irelalign = NULL;
4043 for (irel = internal_relocs; irel < irelend; irel++)
4044 {
4045 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4046 && irel->r_offset == toaddr)
4047 {
4048 irel->r_offset -= align_pad_size;
4049
4050 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4051 irelalign = irel;
4052 }
4053 }
4054
4055 addr = toaddr;
4056 }
4057
4058 if (!irelalign)
4059 {
4060 #ifdef DEBUG_RELAX
4061 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4062 align_pad_size,
4063 sec->size,
4064 sec->size - align_pad_size);
4065 #endif
4066 sec->size -= align_pad_size;
4067 }
4068
4069 finish:
4070 if (internal_relocs != NULL
4071 && elf_section_data (sec)->relocs != internal_relocs)
4072 free (internal_relocs);
4073
4074 if (contents != NULL
4075 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4076 free (contents);
4077
4078 if (isymbuf != NULL
4079 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4080 free (isymbuf);
4081
4082 return result;
4083
4084 error_return:
4085 result = FALSE;
4086 goto finish;
4087 }
4088
4089 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4090 {
4091 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4092 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4093 + SHF_EXECINSTR) },
4094 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4095 + SHF_V850_GPREL) },
4096 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4097 + SHF_V850_R0REL) },
4098 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4099 + SHF_V850_GPREL) },
4100 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4101 + SHF_V850_GPREL) },
4102 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4103 + SHF_V850_GPREL) },
4104 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4105 + SHF_V850_EPREL) },
4106 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4107 + SHF_V850_R0REL) },
4108 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4109 + SHF_V850_EPREL) },
4110 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4111 + SHF_V850_R0REL) },
4112 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4113 + SHF_V850_R0REL) },
4114 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4115 + SHF_V850_R0REL) },
4116 { NULL, 0, 0, 0, 0 }
4117 };
4118 \f
4119 #define TARGET_LITTLE_SYM v850_elf32_vec
4120 #define TARGET_LITTLE_NAME "elf32-v850"
4121 #define ELF_ARCH bfd_arch_v850
4122 #define ELF_MACHINE_CODE EM_V850
4123 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4124 #define ELF_MAXPAGESIZE 0x1000
4125
4126 #define elf_info_to_howto v850_elf_info_to_howto_rela
4127 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4128
4129 #define elf_backend_check_relocs v850_elf_check_relocs
4130 #define elf_backend_relocate_section v850_elf_relocate_section
4131 #define elf_backend_object_p v850_elf_object_p
4132 #define elf_backend_final_write_processing v850_elf_final_write_processing
4133 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4134 #define elf_backend_symbol_processing v850_elf_symbol_processing
4135 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4136 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4137 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4138 #define elf_backend_fake_sections v850_elf_fake_sections
4139 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4140 #define elf_backend_special_sections v850_elf_special_sections
4141
4142 #define elf_backend_can_gc_sections 1
4143 #define elf_backend_rela_normal 1
4144
4145 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4146 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4147
4148 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4149 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4150 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4151 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4152 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4153 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4154
4155 #define elf_symbol_leading_char '_'
4156
4157 #undef elf32_bed
4158 #define elf32_bed elf32_v850_bed
4159
4160 #include "elf32-target.h"
4161
4162 /* Map BFD reloc types to V800 ELF reloc types. */
4163
4164 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4165 {
4166 { BFD_RELOC_NONE, R_V810_NONE },
4167 { BFD_RELOC_8, R_V810_BYTE },
4168 { BFD_RELOC_16, R_V810_HWORD },
4169 { BFD_RELOC_32, R_V810_WORD },
4170 { BFD_RELOC_LO16, R_V810_WLO },
4171 { BFD_RELOC_HI16, R_V810_WHI },
4172 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4173 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4174 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4175 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4176 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4177 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4178 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4179 { BFD_RELOC_V850_23, R_V850_WLO23 },
4180 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4181 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4182 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4183 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4184 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4185 };
4186
4187 /* Map a bfd relocation into the appropriate howto structure. */
4188
4189 static reloc_howto_type *
4190 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4191 {
4192 unsigned int i;
4193
4194 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4195
4196 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4197 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4198 {
4199 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4200 unsigned int idx = elf_reloc_val - R_V810_NONE;
4201
4202 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4203
4204 return v800_elf_howto_table + idx;
4205 }
4206
4207 #ifdef DEBUG
4208 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4209 #endif
4210 return NULL;
4211 }
4212
4213 static reloc_howto_type *
4214 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4215 {
4216 unsigned int i;
4217
4218 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4219
4220 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4221 if (v800_elf_howto_table[i].name != NULL
4222 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4223 return v800_elf_howto_table + i;
4224
4225 return NULL;
4226 }
4227
4228
4229 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4230
4231 static void
4232 v800_elf_info_to_howto (bfd * abfd,
4233 arelent * cache_ptr,
4234 Elf_Internal_Rela * dst)
4235 {
4236 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4237
4238 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4239
4240 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
4241
4242 if (r_type == R_V800_NONE)
4243 r_type = R_V810_NONE;
4244
4245 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
4246 r_type -= R_V810_NONE;
4247 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
4248
4249 cache_ptr->howto = v800_elf_howto_table + r_type;
4250 }
4251 \f
4252 #undef TARGET_LITTLE_SYM
4253 #define TARGET_LITTLE_SYM v800_elf32_vec
4254 #undef TARGET_LITTLE_NAME
4255 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4256 #undef ELF_ARCH
4257 #define ELF_ARCH bfd_arch_v850_rh850
4258 #undef ELF_MACHINE_CODE
4259 #define ELF_MACHINE_CODE EM_V800
4260 #undef ELF_MACHINE_ALT1
4261
4262 #undef elf32_bed
4263 #define elf32_bed elf32_v850_rh850_bed
4264
4265 #undef elf_info_to_howto
4266 #define elf_info_to_howto v800_elf_info_to_howto
4267 #undef elf_info_to_howto_rel
4268 #define elf_info_to_howto_rel NULL
4269 #undef bfd_elf32_bfd_reloc_type_lookup
4270 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4271 #undef bfd_elf32_bfd_reloc_name_lookup
4272 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4273
4274 #include "elf32-target.h"
GDB Binutils - Deliverables
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