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ARM/BFD: Correct an `index' global shadowing error
[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 (*info->callbacks->reloc_overflow)
2275 (info, (h ? &h->root : NULL), name, howto->name,
2276 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2277 break;
2278
2279 case bfd_reloc_undefined:
2280 (*info->callbacks->undefined_symbol)
2281 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2282 break;
2283
2284 case bfd_reloc_outofrange:
2285 msg = _("internal error: out of range error");
2286 goto common_error;
2287
2288 case bfd_reloc_notsupported:
2289 msg = _("internal error: unsupported relocation error");
2290 goto common_error;
2291
2292 case bfd_reloc_dangerous:
2293 msg = _("internal error: dangerous relocation");
2294 goto common_error;
2295
2296 case bfd_reloc_gp_not_found:
2297 msg = _("could not locate special linker symbol __gp");
2298 goto common_error;
2299
2300 case bfd_reloc_ep_not_found:
2301 msg = _("could not locate special linker symbol __ep");
2302 goto common_error;
2303
2304 case bfd_reloc_ctbp_not_found:
2305 msg = _("could not locate special linker symbol __ctbp");
2306 goto common_error;
2307
2308 default:
2309 msg = _("internal error: unknown error");
2310 /* fall through */
2311
2312 common_error:
2313 (*info->callbacks->warning) (info, msg, name, input_bfd,
2314 input_section, rel->r_offset);
2315 break;
2316 }
2317 }
2318 }
2319
2320 return TRUE;
2321 }
2322
2323 static asection *
2324 v850_elf_gc_mark_hook (asection *sec,
2325 struct bfd_link_info *info,
2326 Elf_Internal_Rela *rel,
2327 struct elf_link_hash_entry *h,
2328 Elf_Internal_Sym *sym)
2329 {
2330 if (h != NULL)
2331 switch (ELF32_R_TYPE (rel->r_info))
2332 {
2333 case R_V850_GNU_VTINHERIT:
2334 case R_V850_GNU_VTENTRY:
2335 return NULL;
2336 }
2337
2338 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2339 }
2340
2341 static void
2342 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2343 {
2344 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2345
2346 bfd_put_32 (abfd, 4, data + 0);
2347 bfd_put_32 (abfd, 4, data + 4);
2348 bfd_put_32 (abfd, note, data + 8);
2349 memcpy (data + 12, V850_NOTE_NAME, 4);
2350 bfd_put_32 (abfd, val, data + 16);
2351 }
2352
2353 /* Create the note section if not already present. This is done early so
2354 that the linker maps the sections to the right place in the output. */
2355
2356 static asection *
2357 v850_elf_make_note_section (bfd * abfd)
2358 {
2359 asection *s;
2360 bfd_byte *data;
2361 flagword flags;
2362 enum v850_notes id;
2363
2364 /* Make the note section. */
2365 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2366
2367 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2368 if (s == NULL)
2369 return NULL;
2370
2371 if (!bfd_set_section_alignment (abfd, s, 2))
2372 return NULL;
2373
2374 /* Allocate space for all known notes. */
2375 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2376 return NULL;
2377
2378 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2379 if (data == NULL)
2380 return NULL;
2381
2382 s->contents = data;
2383
2384 /* Provide default (= uninitilaised) values for all of the notes. */
2385 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2386 v850_set_note (abfd, s, id, 0);
2387
2388 return s;
2389 }
2390
2391 /* Create the note section if not already present. This is done early so
2392 that the linker maps the sections to the right place in the output. */
2393
2394 bfd_boolean
2395 v850_elf_create_sections (struct bfd_link_info * info)
2396 {
2397 bfd * ibfd;
2398
2399 /* If we already have a note section, do not make another. */
2400 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2401 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2402 return TRUE;
2403
2404 return v850_elf_make_note_section (info->input_bfds) != NULL;
2405 }
2406
2407 bfd_boolean
2408 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2409 {
2410 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2411
2412 if (val > 2)
2413 /* At the moment, no known note has a value over 2. */
2414 return FALSE;
2415
2416 if (notes == NULL)
2417 notes = v850_elf_make_note_section (abfd);
2418 if (notes == NULL)
2419 return FALSE;
2420
2421 v850_set_note (abfd, notes, note, val);
2422 return TRUE;
2423 }
2424
2425 /* Copy a v850 note section from one object module to another. */
2426
2427 static void
2428 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2429 {
2430 asection * onotes;
2431 asection * inotes;
2432
2433 /* If the output bfd does not have a note section, then
2434 skip the merge. The normal input to output section
2435 copying will take care of everythng for us. */
2436 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2437 return;
2438
2439 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2440 return;
2441
2442 if (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes))
2443 {
2444 bfd_byte * icont;
2445 bfd_byte * ocont;
2446
2447 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2448 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2449
2450 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2451 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2452
2453 /* Copy/overwrite notes from the input to the output. */
2454 memcpy (ocont, icont, bfd_section_size (obfd, onotes));
2455 }
2456 }
2457
2458 /* Copy backend specific data from one object module to another. */
2459
2460 static bfd_boolean
2461 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2462 {
2463 v850_elf_copy_notes (ibfd, obfd);
2464 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2465 }
2466 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2467
2468 static bfd_boolean
2469 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2470 {
2471 asection * onotes;
2472 asection * inotes;
2473 bfd_boolean result = TRUE;
2474
2475 /* If the output bfd does not have a note section, then
2476 skip the merge. The normal input to output section
2477 copying will take care of everythng for us. */
2478 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2479 return TRUE;
2480
2481 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2482 {
2483 enum v850_notes id;
2484 bfd_byte * icont;
2485 bfd_byte * ocont;
2486
2487 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2488
2489 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2490 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2491
2492 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2493 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2494
2495 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2496 {
2497 unsigned int ival;
2498 unsigned int oval;
2499 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2500 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2501
2502 ival = bfd_get_32 (ibfd, idata);
2503 oval = bfd_get_32 (obfd, odata);
2504
2505 if (ival == 0 || ival == oval)
2506 continue;
2507
2508 if (oval == 0)
2509 {
2510 bfd_put_32 (obfd, ival, odata);
2511 v850_set_note (obfd, onotes, id, ival);
2512 continue;
2513 }
2514
2515 /* We have a mismatch. The ABI defines how to handle
2516 this siutation on a per note type basis. */
2517 switch (id)
2518 {
2519 case V850_NOTE_ALIGNMENT:
2520 if (oval == EF_RH850_DATA_ALIGN4)
2521 {
2522 _bfd_error_handler
2523 (_("error: %B needs 8-byte aligment but %B is set for 4-byte alignment"),
2524 ibfd, obfd);
2525 result = FALSE;
2526 }
2527 else
2528 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2529 Leave the obfd alignment as it is. */
2530 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2531
2532 break;
2533
2534 case V850_NOTE_DATA_SIZE:
2535 if (oval == EF_RH850_DOUBLE32)
2536 {
2537 _bfd_error_handler
2538 (_("error: %B uses 64-bit doubles but "
2539 "%B uses 32-bit doubles"), ibfd, obfd);
2540 result = FALSE;
2541 }
2542 else
2543 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2544 This is acceptable. Honest, that is what the ABI says. */
2545 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2546 break;
2547
2548 case V850_NOTE_FPU_INFO:
2549 if (oval == EF_RH850_FPU20)
2550 {
2551 _bfd_error_handler
2552 (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"),
2553 ibfd, obfd);
2554 result = FALSE;
2555 }
2556 else
2557 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2558 BFD_ASSERT (oval == EF_RH850_FPU30);
2559
2560 break;
2561
2562 default:
2563 /* None of the other conflicts matter.
2564 Stick with the current output values. */
2565 break;
2566 }
2567 }
2568
2569 /* FIXME: We should also check for conflicts between the notes
2570 and the EF flags in the ELF header. */
2571 }
2572
2573 return result;
2574 }
2575
2576 static void
2577 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2578 {
2579 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2580
2581 switch (id)
2582 {
2583 case V850_NOTE_ALIGNMENT:
2584 fprintf (file, _(" alignment of 8-byte entities: "));
2585 switch (value)
2586 {
2587 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2588 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2589 case 0: fprintf (file, _("not set")); break;
2590 default: fprintf (file, _("unknown: %x"), value); break;
2591 }
2592 fputc ('\n', file);
2593 break;
2594
2595 case V850_NOTE_DATA_SIZE:
2596 fprintf (file, _(" size of doubles: "));
2597 switch (value)
2598 {
2599 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2600 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2601 case 0: fprintf (file, _("not set")); break;
2602 default: fprintf (file, _("unknown: %x"), value); break;
2603 }
2604 fputc ('\n', file);
2605 break;
2606
2607 case V850_NOTE_FPU_INFO:
2608 fprintf (file, _(" FPU support required: "));
2609 switch (value)
2610 {
2611 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2612 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2613 case 0: fprintf (file, _("none")); break;
2614 default: fprintf (file, _("unknown: %x"), value); break;
2615 }
2616 fputc ('\n', file);
2617 break;
2618
2619 case V850_NOTE_SIMD_INFO:
2620 fprintf (file, _("SIMD use: "));
2621 switch (value)
2622 {
2623 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2624 case 0: fprintf (file, _("no")); break;
2625 default: fprintf (file, _("unknown: %x"), value); break;
2626 }
2627 fputc ('\n', file);
2628 break;
2629
2630 case V850_NOTE_CACHE_INFO:
2631 fprintf (file, _("CACHE use: "));
2632 switch (value)
2633 {
2634 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2635 case 0: fprintf (file, _("no")); break;
2636 default: fprintf (file, _("unknown: %x"), value); break;
2637 }
2638 fputc ('\n', file);
2639 break;
2640
2641 case V850_NOTE_MMU_INFO:
2642 fprintf (file, _("MMU use: "));
2643 switch (value)
2644 {
2645 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2646 case 0: fprintf (file, _("no")); break;
2647 default: fprintf (file, _("unknown: %x"), value); break;
2648 }
2649 fputc ('\n', file);
2650 break;
2651
2652 default:
2653 BFD_ASSERT (0);
2654 }
2655 }
2656
2657 static void
2658 v850_elf_print_notes (bfd * abfd, FILE * file)
2659 {
2660 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2661 enum v850_notes id;
2662
2663 if (notes == NULL || notes->contents == NULL)
2664 return;
2665
2666 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2667
2668 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2669 print_v850_note (abfd, file, notes->contents, id);
2670 }
2671
2672 /* Set the right machine number and architecture. */
2673
2674 static bfd_boolean
2675 v850_elf_object_p (bfd *abfd)
2676 {
2677 enum bfd_architecture arch;
2678 unsigned long mach;
2679
2680 switch (elf_elfheader (abfd)->e_machine)
2681 {
2682 case EM_V800:
2683 arch = bfd_arch_v850_rh850;
2684 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2685 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2686 break;
2687
2688 case EM_CYGNUS_V850:
2689 case EM_V850:
2690 arch = bfd_arch_v850;
2691 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2692 {
2693 default:
2694 case E_V850_ARCH: mach = bfd_mach_v850; break;
2695 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2696 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2697 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2698 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2699 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2700 }
2701 break;
2702
2703 default:
2704 return FALSE;
2705 }
2706
2707 return bfd_default_set_arch_mach (abfd, arch, mach);
2708 }
2709
2710 /* Store the machine number in the flags field. */
2711
2712 static void
2713 v850_elf_final_write_processing (bfd *abfd,
2714 bfd_boolean linker ATTRIBUTE_UNUSED)
2715 {
2716 unsigned long val;
2717
2718 switch (bfd_get_arch (abfd))
2719 {
2720 case bfd_arch_v850_rh850:
2721 val = EF_RH850_ABI;
2722 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2723 val |= EF_V800_850E3;
2724 elf_elfheader (abfd)->e_flags |= val;
2725 break;
2726
2727 case bfd_arch_v850:
2728 switch (bfd_get_mach (abfd))
2729 {
2730 default:
2731 case bfd_mach_v850: val = E_V850_ARCH; break;
2732 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2733 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2734 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2735 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2736 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2737 }
2738 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2739 elf_elfheader (abfd)->e_flags |= val;
2740 break;
2741 default:
2742 break;
2743 }
2744 }
2745
2746 /* Function to keep V850 specific file flags. */
2747
2748 static bfd_boolean
2749 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2750 {
2751 BFD_ASSERT (!elf_flags_init (abfd)
2752 || elf_elfheader (abfd)->e_flags == flags);
2753
2754 elf_elfheader (abfd)->e_flags = flags;
2755 elf_flags_init (abfd) = TRUE;
2756 return TRUE;
2757 }
2758
2759 /* Merge backend specific data from an object file
2760 to the output object file when linking. */
2761
2762 static bfd_boolean
2763 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2764 {
2765 bfd *obfd = info->output_bfd;
2766 flagword out_flags;
2767 flagword in_flags;
2768 bfd_boolean result = TRUE;
2769
2770 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2771 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2772 return TRUE;
2773
2774 result &= v850_elf_merge_notes (ibfd, obfd);
2775
2776 in_flags = elf_elfheader (ibfd)->e_flags;
2777 out_flags = elf_elfheader (obfd)->e_flags;
2778
2779 if (! elf_flags_init (obfd))
2780 {
2781 /* If the input is the default architecture then do not
2782 bother setting the flags for the output architecture,
2783 instead allow future merges to do this. If no future
2784 merges ever set these flags then they will retain their
2785 unitialised values, which surprise surprise, correspond
2786 to the default values. */
2787 if (bfd_get_arch_info (ibfd)->the_default)
2788 return TRUE;
2789
2790 elf_flags_init (obfd) = TRUE;
2791 elf_elfheader (obfd)->e_flags = in_flags;
2792
2793 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2794 && bfd_get_arch_info (obfd)->the_default)
2795 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2796
2797 return result;
2798 }
2799
2800 /* Check flag compatibility. */
2801 if (in_flags == out_flags)
2802 return result;
2803
2804 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2805 {
2806 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2807 {
2808 _bfd_error_handler
2809 (_("%B: Architecture mismatch with previous modules"), ibfd);
2810 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2811 }
2812
2813 return result;
2814 }
2815
2816 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2817 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2818 {
2819 /* Allow earlier architecture binaries to be linked with later binaries.
2820 Set the output binary to the later architecture, except for v850e1,
2821 which we set to v850e. */
2822 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2823 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2824 return result;
2825
2826 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2827 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2828 {
2829 elf_elfheader (obfd)->e_flags =
2830 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2831 return result;
2832 }
2833
2834 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2835 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2836 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2837 {
2838 elf_elfheader (obfd)->e_flags =
2839 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2840 return result;
2841 }
2842
2843 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2844 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2845 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2846 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2847 {
2848 elf_elfheader (obfd)->e_flags =
2849 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2850 return result;
2851 }
2852
2853 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2854 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2855 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2856 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2857 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2858 {
2859 elf_elfheader (obfd)->e_flags =
2860 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2861 return result;
2862 }
2863
2864 _bfd_error_handler
2865 (_("%B: Architecture mismatch with previous modules"), ibfd);
2866 }
2867
2868 return result;
2869 }
2870
2871 /* Display the flags field. */
2872
2873 static bfd_boolean
2874 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2875 {
2876 FILE * file = (FILE *) ptr;
2877
2878 BFD_ASSERT (abfd != NULL && ptr != NULL);
2879
2880 _bfd_elf_print_private_bfd_data (abfd, ptr);
2881
2882 /* xgettext:c-format. */
2883 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2884
2885 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2886 {
2887 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2888 fprintf (file, _("unknown v850 architecture"));
2889 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2890 fprintf (file, _("v850 E3 architecture"));
2891 else
2892 fprintf (file, _("v850 architecture"));
2893 }
2894 else
2895 {
2896 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2897 {
2898 default:
2899 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2900 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2901 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2902 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2903 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2904 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2905 }
2906 }
2907
2908 fputc ('\n', file);
2909
2910 v850_elf_print_notes (abfd, file);
2911
2912 return TRUE;
2913 }
2914
2915 /* V850 ELF uses four common sections. One is the usual one, and the
2916 others are for (small) objects in one of the special data areas:
2917 small, tiny and zero. All the objects are kept together, and then
2918 referenced via the gp register, the ep register or the r0 register
2919 respectively, which yields smaller, faster assembler code. This
2920 approach is copied from elf32-mips.c. */
2921
2922 static asection v850_elf_scom_section;
2923 static asymbol v850_elf_scom_symbol;
2924 static asymbol * v850_elf_scom_symbol_ptr;
2925 static asection v850_elf_tcom_section;
2926 static asymbol v850_elf_tcom_symbol;
2927 static asymbol * v850_elf_tcom_symbol_ptr;
2928 static asection v850_elf_zcom_section;
2929 static asymbol v850_elf_zcom_symbol;
2930 static asymbol * v850_elf_zcom_symbol_ptr;
2931
2932 /* Given a BFD section, try to locate the
2933 corresponding ELF section index. */
2934
2935 static bfd_boolean
2936 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2937 asection *sec,
2938 int *retval)
2939 {
2940 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2941 *retval = SHN_V850_SCOMMON;
2942 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2943 *retval = SHN_V850_TCOMMON;
2944 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2945 *retval = SHN_V850_ZCOMMON;
2946 else
2947 return FALSE;
2948
2949 return TRUE;
2950 }
2951
2952 /* Handle the special V850 section numbers that a symbol may use. */
2953
2954 static void
2955 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2956 {
2957 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2958 unsigned int indx;
2959
2960 indx = elfsym->internal_elf_sym.st_shndx;
2961
2962 /* If the section index is an "ordinary" index, then it may
2963 refer to a v850 specific section created by the assembler.
2964 Check the section's type and change the index it matches.
2965
2966 FIXME: Should we alter the st_shndx field as well ? */
2967
2968 if (indx < elf_numsections (abfd))
2969 switch (elf_elfsections (abfd)[indx]->sh_type)
2970 {
2971 case SHT_V850_SCOMMON:
2972 indx = SHN_V850_SCOMMON;
2973 break;
2974
2975 case SHT_V850_TCOMMON:
2976 indx = SHN_V850_TCOMMON;
2977 break;
2978
2979 case SHT_V850_ZCOMMON:
2980 indx = SHN_V850_ZCOMMON;
2981 break;
2982
2983 default:
2984 break;
2985 }
2986
2987 switch (indx)
2988 {
2989 case SHN_V850_SCOMMON:
2990 if (v850_elf_scom_section.name == NULL)
2991 {
2992 /* Initialize the small common section. */
2993 v850_elf_scom_section.name = ".scommon";
2994 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2995 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2996 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
2997 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
2998 v850_elf_scom_symbol.name = ".scommon";
2999 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
3000 v850_elf_scom_symbol.section = & v850_elf_scom_section;
3001 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
3002 }
3003 asym->section = & v850_elf_scom_section;
3004 asym->value = elfsym->internal_elf_sym.st_size;
3005 break;
3006
3007 case SHN_V850_TCOMMON:
3008 if (v850_elf_tcom_section.name == NULL)
3009 {
3010 /* Initialize the tcommon section. */
3011 v850_elf_tcom_section.name = ".tcommon";
3012 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3013 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3014 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3015 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3016 v850_elf_tcom_symbol.name = ".tcommon";
3017 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3018 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3019 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3020 }
3021 asym->section = & v850_elf_tcom_section;
3022 asym->value = elfsym->internal_elf_sym.st_size;
3023 break;
3024
3025 case SHN_V850_ZCOMMON:
3026 if (v850_elf_zcom_section.name == NULL)
3027 {
3028 /* Initialize the zcommon section. */
3029 v850_elf_zcom_section.name = ".zcommon";
3030 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3031 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3032 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3033 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3034 v850_elf_zcom_symbol.name = ".zcommon";
3035 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3036 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3037 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3038 }
3039 asym->section = & v850_elf_zcom_section;
3040 asym->value = elfsym->internal_elf_sym.st_size;
3041 break;
3042 }
3043 }
3044
3045 /* Hook called by the linker routine which adds symbols from an object
3046 file. We must handle the special v850 section numbers here. */
3047
3048 static bfd_boolean
3049 v850_elf_add_symbol_hook (bfd *abfd,
3050 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3051 Elf_Internal_Sym *sym,
3052 const char **namep ATTRIBUTE_UNUSED,
3053 flagword *flagsp ATTRIBUTE_UNUSED,
3054 asection **secp,
3055 bfd_vma *valp)
3056 {
3057 unsigned int indx = sym->st_shndx;
3058
3059 /* If the section index is an "ordinary" index, then it may
3060 refer to a v850 specific section created by the assembler.
3061 Check the section's type and change the index it matches.
3062
3063 FIXME: Should we alter the st_shndx field as well ? */
3064
3065 if (indx < elf_numsections (abfd))
3066 switch (elf_elfsections (abfd)[indx]->sh_type)
3067 {
3068 case SHT_V850_SCOMMON:
3069 indx = SHN_V850_SCOMMON;
3070 break;
3071
3072 case SHT_V850_TCOMMON:
3073 indx = SHN_V850_TCOMMON;
3074 break;
3075
3076 case SHT_V850_ZCOMMON:
3077 indx = SHN_V850_ZCOMMON;
3078 break;
3079
3080 default:
3081 break;
3082 }
3083
3084 switch (indx)
3085 {
3086 case SHN_V850_SCOMMON:
3087 *secp = bfd_make_section_old_way (abfd, ".scommon");
3088 (*secp)->flags |= SEC_IS_COMMON;
3089 *valp = sym->st_size;
3090 break;
3091
3092 case SHN_V850_TCOMMON:
3093 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3094 (*secp)->flags |= SEC_IS_COMMON;
3095 *valp = sym->st_size;
3096 break;
3097
3098 case SHN_V850_ZCOMMON:
3099 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3100 (*secp)->flags |= SEC_IS_COMMON;
3101 *valp = sym->st_size;
3102 break;
3103 }
3104
3105 return TRUE;
3106 }
3107
3108 static int
3109 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3110 const char *name ATTRIBUTE_UNUSED,
3111 Elf_Internal_Sym *sym,
3112 asection *input_sec,
3113 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3114 {
3115 /* If we see a common symbol, which implies a relocatable link, then
3116 if a symbol was in a special common section in an input file, mark
3117 it as a special common in the output file. */
3118
3119 if (sym->st_shndx == SHN_COMMON)
3120 {
3121 if (strcmp (input_sec->name, ".scommon") == 0)
3122 sym->st_shndx = SHN_V850_SCOMMON;
3123 else if (strcmp (input_sec->name, ".tcommon") == 0)
3124 sym->st_shndx = SHN_V850_TCOMMON;
3125 else if (strcmp (input_sec->name, ".zcommon") == 0)
3126 sym->st_shndx = SHN_V850_ZCOMMON;
3127 }
3128
3129 /* The price we pay for using h->other unused bits as flags in the
3130 linker is cleaning up after ourselves. */
3131
3132 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3133 | V850_OTHER_ERROR);
3134
3135 return 1;
3136 }
3137
3138 static bfd_boolean
3139 v850_elf_section_from_shdr (bfd *abfd,
3140 Elf_Internal_Shdr *hdr,
3141 const char *name,
3142 int shindex)
3143 {
3144 /* There ought to be a place to keep ELF backend specific flags, but
3145 at the moment there isn't one. We just keep track of the
3146 sections by their name, instead. */
3147
3148 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3149 return FALSE;
3150
3151 switch (hdr->sh_type)
3152 {
3153 case SHT_V850_SCOMMON:
3154 case SHT_V850_TCOMMON:
3155 case SHT_V850_ZCOMMON:
3156 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3157 (bfd_get_section_flags (abfd,
3158 hdr->bfd_section)
3159 | SEC_IS_COMMON)))
3160 return FALSE;
3161 }
3162
3163 return TRUE;
3164 }
3165
3166 /* Set the correct type for a V850 ELF section. We do this
3167 by the section name, which is a hack, but ought to work. */
3168
3169 static bfd_boolean
3170 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3171 Elf_Internal_Shdr *hdr,
3172 asection *sec)
3173 {
3174 const char * name;
3175
3176 name = bfd_get_section_name (abfd, sec);
3177
3178 if (strcmp (name, ".scommon") == 0)
3179 hdr->sh_type = SHT_V850_SCOMMON;
3180 else if (strcmp (name, ".tcommon") == 0)
3181 hdr->sh_type = SHT_V850_TCOMMON;
3182 else if (strcmp (name, ".zcommon") == 0)
3183 hdr->sh_type = SHT_V850_ZCOMMON;
3184 /* Tweak the section type of .note.renesas. */
3185 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3186 {
3187 hdr->sh_type = SHT_RENESAS_INFO;
3188 hdr->sh_entsize = SIZEOF_V850_NOTE;
3189 }
3190
3191 return TRUE;
3192 }
3193
3194 /* Delete some bytes from a section while relaxing. */
3195
3196 static bfd_boolean
3197 v850_elf_relax_delete_bytes (bfd *abfd,
3198 asection *sec,
3199 bfd_vma addr,
3200 bfd_vma toaddr,
3201 int count)
3202 {
3203 Elf_Internal_Shdr *symtab_hdr;
3204 Elf32_External_Sym *extsyms;
3205 Elf32_External_Sym *esym;
3206 Elf32_External_Sym *esymend;
3207 int sym_index;
3208 unsigned int sec_shndx;
3209 bfd_byte *contents;
3210 Elf_Internal_Rela *irel;
3211 Elf_Internal_Rela *irelend;
3212 struct elf_link_hash_entry *sym_hash;
3213 Elf_External_Sym_Shndx *shndx;
3214
3215 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3216 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3217
3218 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3219
3220 contents = elf_section_data (sec)->this_hdr.contents;
3221
3222 /* The deletion must stop at the next ALIGN reloc for an alignment
3223 power larger than the number of bytes we are deleting. */
3224
3225 /* Actually delete the bytes. */
3226 #if (DEBUG_RELAX & 2)
3227 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3228 sec->name, addr, toaddr, count );
3229 #endif
3230 memmove (contents + addr, contents + addr + count,
3231 toaddr - addr - count);
3232 memset (contents + toaddr-count, 0, count);
3233
3234 /* Adjust all the relocs. */
3235 irel = elf_section_data (sec)->relocs;
3236 irelend = irel + sec->reloc_count;
3237 if (elf_symtab_shndx_list (abfd))
3238 {
3239 Elf_Internal_Shdr *shndx_hdr;
3240
3241 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3242 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3243 }
3244 else
3245 {
3246 shndx = NULL;
3247 }
3248
3249 for (; irel < irelend; irel++)
3250 {
3251 bfd_vma raddr, paddr, symval;
3252 Elf_Internal_Sym isym;
3253
3254 /* Get the new reloc address. */
3255 raddr = irel->r_offset;
3256 if ((raddr >= (addr + count) && raddr < toaddr))
3257 irel->r_offset -= count;
3258
3259 if (raddr >= addr && raddr < addr + count)
3260 {
3261 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3262 (int) R_V850_NONE);
3263 continue;
3264 }
3265
3266 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3267 continue;
3268
3269 bfd_elf32_swap_symbol_in (abfd,
3270 extsyms + ELF32_R_SYM (irel->r_info),
3271 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3272 & isym);
3273
3274 if (isym.st_shndx != sec_shndx)
3275 continue;
3276
3277 /* Get the value of the symbol referred to by the reloc. */
3278 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3279 {
3280 symval = isym.st_value;
3281 #if (DEBUG_RELAX & 2)
3282 {
3283 char * name = bfd_elf_string_from_elf_section
3284 (abfd, symtab_hdr->sh_link, isym.st_name);
3285 fprintf (stderr,
3286 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3287 sec->name, name, isym.st_name,
3288 sec->output_section->vma, sec->output_offset,
3289 isym.st_value, irel->r_addend);
3290 }
3291 #endif
3292 }
3293 else
3294 {
3295 unsigned long indx;
3296 struct elf_link_hash_entry * h;
3297
3298 /* An external symbol. */
3299 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3300
3301 h = elf_sym_hashes (abfd) [indx];
3302 BFD_ASSERT (h != NULL);
3303
3304 symval = h->root.u.def.value;
3305 #if (DEBUG_RELAX & 2)
3306 fprintf (stderr,
3307 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3308 sec->name, h->root.root.string, h->root.u.def.value,
3309 sec->output_section->vma, sec->output_offset, irel->r_addend);
3310 #endif
3311 }
3312
3313 paddr = symval + irel->r_addend;
3314
3315 if ( (symval >= addr + count && symval < toaddr)
3316 && (paddr < addr + count || paddr >= toaddr))
3317 irel->r_addend += count;
3318 else if ( (symval < addr + count || symval >= toaddr)
3319 && (paddr >= addr + count && paddr < toaddr))
3320 irel->r_addend -= count;
3321 }
3322
3323 /* Adjust the local symbols defined in this section. */
3324 esym = extsyms;
3325 esymend = esym + symtab_hdr->sh_info;
3326
3327 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3328 {
3329 Elf_Internal_Sym isym;
3330
3331 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3332
3333 if (isym.st_shndx == sec_shndx
3334 && isym.st_value >= addr + count
3335 && isym.st_value < toaddr)
3336 {
3337 isym.st_value -= count;
3338
3339 if (isym.st_value + isym.st_size >= toaddr)
3340 isym.st_size += count;
3341
3342 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3343 }
3344 else if (isym.st_shndx == sec_shndx
3345 && isym.st_value < addr + count)
3346 {
3347 if (isym.st_value+isym.st_size >= addr + count
3348 && isym.st_value+isym.st_size < toaddr)
3349 isym.st_size -= count;
3350
3351 if (isym.st_value >= addr
3352 && isym.st_value < addr + count)
3353 isym.st_value = addr;
3354
3355 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3356 }
3357 }
3358
3359 /* Now adjust the global symbols defined in this section. */
3360 esym = extsyms + symtab_hdr->sh_info;
3361 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3362
3363 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3364 {
3365 Elf_Internal_Sym isym;
3366
3367 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3368 sym_hash = elf_sym_hashes (abfd) [sym_index];
3369
3370 if (isym.st_shndx == sec_shndx
3371 && ((sym_hash)->root.type == bfd_link_hash_defined
3372 || (sym_hash)->root.type == bfd_link_hash_defweak)
3373 && (sym_hash)->root.u.def.section == sec
3374 && (sym_hash)->root.u.def.value >= addr + count
3375 && (sym_hash)->root.u.def.value < toaddr)
3376 {
3377 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3378 {
3379 isym.st_size += count;
3380 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3381 }
3382
3383 (sym_hash)->root.u.def.value -= count;
3384 }
3385 else if (isym.st_shndx == sec_shndx
3386 && ((sym_hash)->root.type == bfd_link_hash_defined
3387 || (sym_hash)->root.type == bfd_link_hash_defweak)
3388 && (sym_hash)->root.u.def.section == sec
3389 && (sym_hash)->root.u.def.value < addr + count)
3390 {
3391 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3392 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3393 isym.st_size -= count;
3394
3395 if ((sym_hash)->root.u.def.value >= addr
3396 && (sym_hash)->root.u.def.value < addr + count)
3397 (sym_hash)->root.u.def.value = addr;
3398
3399 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3400 }
3401
3402 if (shndx)
3403 ++ shndx;
3404 }
3405
3406 return TRUE;
3407 }
3408
3409 #define NOP_OPCODE (0x0000)
3410 #define MOVHI 0x0640 /* 4byte. */
3411 #define MOVHI_MASK 0x07e0
3412 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3413 #define MOVHI_R2(insn) ((insn) >> 11)
3414 #define MOVEA 0x0620 /* 2byte. */
3415 #define MOVEA_MASK 0x07e0
3416 #define MOVEA_R1(insn) ((insn) & 0x1f)
3417 #define MOVEA_R2(insn) ((insn) >> 11)
3418 #define JARL_4 0x00040780 /* 4byte. */
3419 #define JARL_4_MASK 0xFFFF07FF
3420 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3421 #define ADD_I 0x0240 /* 2byte. */
3422 #define ADD_I_MASK 0x07e0
3423 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3424 #define ADD_R2(insn) ((insn) >> 11)
3425 #define JMP_R 0x0060 /* 2byte. */
3426 #define JMP_R_MASK 0xFFE0
3427 #define JMP_R1(insn) ((insn) & 0x1f)
3428
3429 static bfd_boolean
3430 v850_elf_relax_section (bfd *abfd,
3431 asection *sec,
3432 struct bfd_link_info *link_info,
3433 bfd_boolean *again)
3434 {
3435 Elf_Internal_Shdr *symtab_hdr;
3436 Elf_Internal_Rela *internal_relocs;
3437 Elf_Internal_Rela *irel;
3438 Elf_Internal_Rela *irelend;
3439 Elf_Internal_Rela *irelalign = NULL;
3440 Elf_Internal_Sym *isymbuf = NULL;
3441 bfd_byte *contents = NULL;
3442 bfd_vma addr = 0;
3443 bfd_vma toaddr;
3444 int align_pad_size = 0;
3445 bfd_boolean result = TRUE;
3446
3447 *again = FALSE;
3448
3449 if (bfd_link_relocatable (link_info)
3450 || (sec->flags & SEC_RELOC) == 0
3451 || sec->reloc_count == 0)
3452 return TRUE;
3453
3454 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3455
3456 internal_relocs = (_bfd_elf_link_read_relocs
3457 (abfd, sec, NULL, NULL, link_info->keep_memory));
3458 if (internal_relocs == NULL)
3459 goto error_return;
3460
3461 irelend = internal_relocs + sec->reloc_count;
3462
3463 while (addr < sec->size)
3464 {
3465 toaddr = sec->size;
3466
3467 for (irel = internal_relocs; irel < irelend; irel ++)
3468 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3469 && irel->r_offset > addr
3470 && irel->r_offset < toaddr)
3471 toaddr = irel->r_offset;
3472
3473 #ifdef DEBUG_RELAX
3474 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3475 addr, toaddr, align_pad_size);
3476 #endif
3477 if (irelalign)
3478 {
3479 bfd_vma alignto;
3480 bfd_vma alignmoveto;
3481
3482 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3483 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3484
3485 if (alignmoveto < alignto)
3486 {
3487 bfd_vma i;
3488
3489 align_pad_size = alignto - alignmoveto;
3490 #ifdef DEBUG_RELAX
3491 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3492 alignmoveto, toaddr, align_pad_size);
3493 #endif
3494 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3495 toaddr, align_pad_size))
3496 goto error_return;
3497
3498 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3499 (i + 1) < toaddr; i += 2)
3500 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3501
3502 addr = alignmoveto;
3503 }
3504 else
3505 align_pad_size = 0;
3506 }
3507
3508 for (irel = internal_relocs; irel < irelend; irel++)
3509 {
3510 bfd_vma laddr;
3511 bfd_vma addend;
3512 bfd_vma symval;
3513 int insn[5];
3514 int no_match = -1;
3515 Elf_Internal_Rela *hi_irelfn;
3516 Elf_Internal_Rela *lo_irelfn;
3517 Elf_Internal_Rela *irelcall;
3518 bfd_signed_vma foff;
3519 unsigned int r_type;
3520
3521 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3522 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3523 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3524 continue;
3525
3526 #ifdef DEBUG_RELAX
3527 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3528 irel->r_info,
3529 irel->r_offset,
3530 irel->r_addend );
3531 #endif
3532
3533 /* Get the section contents. */
3534 if (contents == NULL)
3535 {
3536 if (elf_section_data (sec)->this_hdr.contents != NULL)
3537 contents = elf_section_data (sec)->this_hdr.contents;
3538 else
3539 {
3540 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3541 goto error_return;
3542 }
3543 }
3544
3545 /* Read this BFD's local symbols if we haven't done so already. */
3546 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3547 {
3548 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3549 if (isymbuf == NULL)
3550 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3551 symtab_hdr->sh_info, 0,
3552 NULL, NULL, NULL);
3553 if (isymbuf == NULL)
3554 goto error_return;
3555 }
3556
3557 laddr = irel->r_offset;
3558
3559 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3560 {
3561 /* Check code for -mlong-calls output. */
3562 if (laddr + 16 <= (bfd_vma) sec->size)
3563 {
3564 insn[0] = bfd_get_16 (abfd, contents + laddr);
3565 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3566 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3567 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3568 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3569
3570 if ((insn[0] & MOVHI_MASK) != MOVHI
3571 || MOVHI_R1 (insn[0]) != 0)
3572 no_match = 0;
3573
3574 if (no_match < 0
3575 && ((insn[1] & MOVEA_MASK) != MOVEA
3576 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3577 no_match = 1;
3578
3579 if (no_match < 0
3580 && (insn[2] & JARL_4_MASK) != JARL_4)
3581 no_match = 2;
3582
3583 if (no_match < 0
3584 && ((insn[3] & ADD_I_MASK) != ADD_I
3585 || ADD_I5 (insn[3]) != 4
3586 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3587 no_match = 3;
3588
3589 if (no_match < 0
3590 && ((insn[4] & JMP_R_MASK) != JMP_R
3591 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3592 no_match = 4;
3593 }
3594 else
3595 {
3596 _bfd_error_handler
3597 ("%s: 0x%lx: warning: R_V850_LONGCALL points to "
3598 "unrecognized insns",
3599 bfd_get_filename (abfd), (unsigned long) irel->r_offset);
3600 continue;
3601 }
3602
3603 if (no_match >= 0)
3604 {
3605 _bfd_error_handler
3606 ("%s: 0x%lx: warning: R_V850_LONGCALL points to "
3607 "unrecognized insn 0x%x",
3608 bfd_get_filename (abfd),
3609 (unsigned long) irel->r_offset + no_match,
3610 insn[no_match]);
3611 continue;
3612 }
3613
3614 /* Get the reloc for the address from which the register is
3615 being loaded. This reloc will tell us which function is
3616 actually being called. */
3617
3618 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3619 {
3620 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3621
3622 if (hi_irelfn->r_offset == laddr + 2
3623 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3624 break;
3625 }
3626
3627 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3628 {
3629 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3630
3631 if (lo_irelfn->r_offset == laddr + 6
3632 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3633 break;
3634 }
3635
3636 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3637 {
3638 r_type = ELF32_R_TYPE (irelcall->r_info);
3639
3640 if (irelcall->r_offset == laddr + 8
3641 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3642 break;
3643 }
3644
3645 if ( hi_irelfn == irelend
3646 || lo_irelfn == irelend
3647 || irelcall == irelend)
3648 {
3649 _bfd_error_handler
3650 ("%s: 0x%lx: warning: R_V850_LONGCALL points to "
3651 "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 "
3690 "unrecognized reloc 0x%lx",
3691 bfd_get_filename (abfd), (unsigned long) irel->r_offset,
3692 irelcall->r_offset);
3693 continue;
3694 }
3695
3696 /* Get the value of the symbol referred to by the reloc. */
3697 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3698 {
3699 Elf_Internal_Sym *isym;
3700 asection *sym_sec;
3701
3702 /* A local symbol. */
3703 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3704
3705 if (isym->st_shndx == SHN_UNDEF)
3706 sym_sec = bfd_und_section_ptr;
3707 else if (isym->st_shndx == SHN_ABS)
3708 sym_sec = bfd_abs_section_ptr;
3709 else if (isym->st_shndx == SHN_COMMON)
3710 sym_sec = bfd_com_section_ptr;
3711 else
3712 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3713 symval = (isym->st_value
3714 + sym_sec->output_section->vma
3715 + sym_sec->output_offset);
3716 }
3717 else
3718 {
3719 unsigned long indx;
3720 struct elf_link_hash_entry *h;
3721
3722 /* An external symbol. */
3723 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3724 h = elf_sym_hashes (abfd)[indx];
3725 BFD_ASSERT (h != NULL);
3726
3727 if ( h->root.type != bfd_link_hash_defined
3728 && h->root.type != bfd_link_hash_defweak)
3729 /* This appears to be a reference to an undefined
3730 symbol. Just ignore it--it will be caught by the
3731 regular reloc processing. */
3732 continue;
3733
3734 symval = (h->root.u.def.value
3735 + h->root.u.def.section->output_section->vma
3736 + h->root.u.def.section->output_offset);
3737 }
3738
3739 addend = irel->r_addend;
3740
3741 foff = (symval + addend
3742 - (irel->r_offset
3743 + sec->output_section->vma
3744 + sec->output_offset
3745 + 4));
3746 #ifdef DEBUG_RELAX
3747 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3748 irel->r_offset,
3749 (irel->r_offset
3750 + sec->output_section->vma
3751 + sec->output_offset),
3752 symval, addend, foff);
3753 #endif
3754
3755 if (foff < -0x100000 || foff >= 0x100000)
3756 /* After all that work, we can't shorten this function call. */
3757 continue;
3758
3759 /* For simplicity of coding, we are going to modify the section
3760 contents, the section relocs, and the BFD symbol table. We
3761 must tell the rest of the code not to free up this
3762 information. It would be possible to instead create a table
3763 of changes which have to be made, as is done in coff-mips.c;
3764 that would be more work, but would require less memory when
3765 the linker is run. */
3766 elf_section_data (sec)->relocs = internal_relocs;
3767 elf_section_data (sec)->this_hdr.contents = contents;
3768 symtab_hdr->contents = (bfd_byte *) isymbuf;
3769
3770 /* Replace the long call with a jarl. */
3771 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3772 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3773 else
3774 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3775
3776 addend = 0;
3777
3778 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3779 /* If this needs to be changed because of future relaxing,
3780 it will be handled here like other internal IND12W
3781 relocs. */
3782 bfd_put_32 (abfd,
3783 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3784 contents + irel->r_offset);
3785 else
3786 /* We can't fully resolve this yet, because the external
3787 symbol value may be changed by future relaxing.
3788 We let the final link phase handle it. */
3789 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3790 contents + irel->r_offset);
3791
3792 hi_irelfn->r_info =
3793 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3794 lo_irelfn->r_info =
3795 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3796 irelcall->r_info =
3797 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3798
3799 if (! v850_elf_relax_delete_bytes (abfd, sec,
3800 irel->r_offset + 4, toaddr, 12))
3801 goto error_return;
3802
3803 align_pad_size += 12;
3804 }
3805 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3806 {
3807 /* Check code for -mlong-jumps output. */
3808 if (laddr + 10 <= (bfd_vma) sec->size)
3809 {
3810 insn[0] = bfd_get_16 (abfd, contents + laddr);
3811 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3812 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3813
3814 if ((insn[0] & MOVHI_MASK) != MOVHI
3815 || MOVHI_R1 (insn[0]) != 0)
3816 no_match = 0;
3817
3818 if (no_match < 0
3819 && ((insn[1] & MOVEA_MASK) != MOVEA
3820 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3821 no_match = 1;
3822
3823 if (no_match < 0
3824 && ((insn[2] & JMP_R_MASK) != JMP_R
3825 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3826 no_match = 4;
3827 }
3828 else
3829 {
3830 _bfd_error_handler
3831 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to "
3832 "unrecognized insns",
3833 bfd_get_filename (abfd), (unsigned long) irel->r_offset);
3834 continue;
3835 }
3836
3837 if (no_match >= 0)
3838 {
3839 _bfd_error_handler
3840 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to "
3841 "unrecognized insn 0x%x",
3842 bfd_get_filename (abfd),
3843 (unsigned long) irel->r_offset + no_match,
3844 insn[no_match]);
3845 continue;
3846 }
3847
3848 /* Get the reloc for the address from which the register is
3849 being loaded. This reloc will tell us which function is
3850 actually being called. */
3851 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3852 {
3853 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3854
3855 if (hi_irelfn->r_offset == laddr + 2
3856 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3857 break;
3858 }
3859
3860 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3861 {
3862 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3863
3864 if (lo_irelfn->r_offset == laddr + 6
3865 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3866 break;
3867 }
3868
3869 if ( hi_irelfn == irelend
3870 || lo_irelfn == irelend)
3871 {
3872 _bfd_error_handler
3873 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to "
3874 "unrecognized reloc",
3875 bfd_get_filename (abfd), (unsigned long) irel->r_offset);
3876 continue;
3877 }
3878
3879 /* Get the value of the symbol referred to by the reloc. */
3880 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3881 {
3882 Elf_Internal_Sym * isym;
3883 asection * sym_sec;
3884
3885 /* A local symbol. */
3886 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3887
3888 if (isym->st_shndx == SHN_UNDEF)
3889 sym_sec = bfd_und_section_ptr;
3890 else if (isym->st_shndx == SHN_ABS)
3891 sym_sec = bfd_abs_section_ptr;
3892 else if (isym->st_shndx == SHN_COMMON)
3893 sym_sec = bfd_com_section_ptr;
3894 else
3895 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3896 symval = (isym->st_value
3897 + sym_sec->output_section->vma
3898 + sym_sec->output_offset);
3899 #ifdef DEBUG_RELAX
3900 {
3901 char * name = bfd_elf_string_from_elf_section
3902 (abfd, symtab_hdr->sh_link, isym->st_name);
3903
3904 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3905 sym_sec->name, name, isym->st_name,
3906 sym_sec->output_section->vma,
3907 sym_sec->output_offset,
3908 isym->st_value, irel->r_addend);
3909 }
3910 #endif
3911 }
3912 else
3913 {
3914 unsigned long indx;
3915 struct elf_link_hash_entry * h;
3916
3917 /* An external symbol. */
3918 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3919 h = elf_sym_hashes (abfd)[indx];
3920 BFD_ASSERT (h != NULL);
3921
3922 if ( h->root.type != bfd_link_hash_defined
3923 && h->root.type != bfd_link_hash_defweak)
3924 /* This appears to be a reference to an undefined
3925 symbol. Just ignore it--it will be caught by the
3926 regular reloc processing. */
3927 continue;
3928
3929 symval = (h->root.u.def.value
3930 + h->root.u.def.section->output_section->vma
3931 + h->root.u.def.section->output_offset);
3932 #ifdef DEBUG_RELAX
3933 fprintf (stderr,
3934 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3935 sec->name, h->root.root.string, h->root.u.def.value,
3936 sec->output_section->vma, sec->output_offset, irel->r_addend);
3937 #endif
3938 }
3939
3940 addend = irel->r_addend;
3941
3942 foff = (symval + addend
3943 - (irel->r_offset
3944 + sec->output_section->vma
3945 + sec->output_offset
3946 + 4));
3947 #ifdef DEBUG_RELAX
3948 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3949 irel->r_offset,
3950 (irel->r_offset
3951 + sec->output_section->vma
3952 + sec->output_offset),
3953 symval, addend, foff);
3954 #endif
3955 if (foff < -0x100000 || foff >= 0x100000)
3956 /* After all that work, we can't shorten this function call. */
3957 continue;
3958
3959 /* For simplicity of coding, we are going to modify the section
3960 contents, the section relocs, and the BFD symbol table. We
3961 must tell the rest of the code not to free up this
3962 information. It would be possible to instead create a table
3963 of changes which have to be made, as is done in coff-mips.c;
3964 that would be more work, but would require less memory when
3965 the linker is run. */
3966 elf_section_data (sec)->relocs = internal_relocs;
3967 elf_section_data (sec)->this_hdr.contents = contents;
3968 symtab_hdr->contents = (bfd_byte *) isymbuf;
3969
3970 if (foff < -0x100 || foff >= 0x100)
3971 {
3972 /* Replace the long jump with a jr. */
3973
3974 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3975 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3976 else
3977 irel->r_info =
3978 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3979
3980 irel->r_addend = addend;
3981 addend = 0;
3982
3983 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3984 /* If this needs to be changed because of future relaxing,
3985 it will be handled here like other internal IND12W
3986 relocs. */
3987 bfd_put_32 (abfd,
3988 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3989 contents + irel->r_offset);
3990 else
3991 /* We can't fully resolve this yet, because the external
3992 symbol value may be changed by future relaxing.
3993 We let the final link phase handle it. */
3994 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3995
3996 hi_irelfn->r_info =
3997 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3998 lo_irelfn->r_info =
3999 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4000 if (!v850_elf_relax_delete_bytes (abfd, sec,
4001 irel->r_offset + 4, toaddr, 6))
4002 goto error_return;
4003
4004 align_pad_size += 6;
4005 }
4006 else
4007 {
4008 /* Replace the long jump with a br. */
4009
4010 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4011 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4012 else
4013 irel->r_info =
4014 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4015
4016 irel->r_addend = addend;
4017 addend = 0;
4018
4019 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4020 /* If this needs to be changed because of future relaxing,
4021 it will be handled here like other internal IND12W
4022 relocs. */
4023 bfd_put_16 (abfd,
4024 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4025 contents + irel->r_offset);
4026 else
4027 /* We can't fully resolve this yet, because the external
4028 symbol value may be changed by future relaxing.
4029 We let the final link phase handle it. */
4030 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4031
4032 hi_irelfn->r_info =
4033 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4034 lo_irelfn->r_info =
4035 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4036 if (!v850_elf_relax_delete_bytes (abfd, sec,
4037 irel->r_offset + 2, toaddr, 8))
4038 goto error_return;
4039
4040 align_pad_size += 8;
4041 }
4042 }
4043 }
4044
4045 irelalign = NULL;
4046 for (irel = internal_relocs; irel < irelend; irel++)
4047 {
4048 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4049 && irel->r_offset == toaddr)
4050 {
4051 irel->r_offset -= align_pad_size;
4052
4053 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4054 irelalign = irel;
4055 }
4056 }
4057
4058 addr = toaddr;
4059 }
4060
4061 if (!irelalign)
4062 {
4063 #ifdef DEBUG_RELAX
4064 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4065 align_pad_size,
4066 sec->size,
4067 sec->size - align_pad_size);
4068 #endif
4069 sec->size -= align_pad_size;
4070 }
4071
4072 finish:
4073 if (internal_relocs != NULL
4074 && elf_section_data (sec)->relocs != internal_relocs)
4075 free (internal_relocs);
4076
4077 if (contents != NULL
4078 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4079 free (contents);
4080
4081 if (isymbuf != NULL
4082 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4083 free (isymbuf);
4084
4085 return result;
4086
4087 error_return:
4088 result = FALSE;
4089 goto finish;
4090 }
4091
4092 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4093 {
4094 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4095 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4096 + SHF_EXECINSTR) },
4097 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4098 + SHF_V850_GPREL) },
4099 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4100 + SHF_V850_R0REL) },
4101 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4102 + SHF_V850_GPREL) },
4103 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4104 + SHF_V850_GPREL) },
4105 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4106 + SHF_V850_GPREL) },
4107 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4108 + SHF_V850_EPREL) },
4109 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4110 + SHF_V850_R0REL) },
4111 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4112 + SHF_V850_EPREL) },
4113 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4114 + SHF_V850_R0REL) },
4115 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4116 + SHF_V850_R0REL) },
4117 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4118 + SHF_V850_R0REL) },
4119 { NULL, 0, 0, 0, 0 }
4120 };
4121 \f
4122 #define TARGET_LITTLE_SYM v850_elf32_vec
4123 #define TARGET_LITTLE_NAME "elf32-v850"
4124 #define ELF_ARCH bfd_arch_v850
4125 #define ELF_MACHINE_CODE EM_V850
4126 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4127 #define ELF_MAXPAGESIZE 0x1000
4128
4129 #define elf_info_to_howto v850_elf_info_to_howto_rela
4130 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4131
4132 #define elf_backend_check_relocs v850_elf_check_relocs
4133 #define elf_backend_relocate_section v850_elf_relocate_section
4134 #define elf_backend_object_p v850_elf_object_p
4135 #define elf_backend_final_write_processing v850_elf_final_write_processing
4136 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4137 #define elf_backend_symbol_processing v850_elf_symbol_processing
4138 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4139 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4140 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4141 #define elf_backend_fake_sections v850_elf_fake_sections
4142 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4143 #define elf_backend_special_sections v850_elf_special_sections
4144
4145 #define elf_backend_can_gc_sections 1
4146 #define elf_backend_rela_normal 1
4147
4148 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4149 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4150
4151 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4152 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4153 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4154 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4155 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4156 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4157
4158 #define elf_symbol_leading_char '_'
4159
4160 #undef elf32_bed
4161 #define elf32_bed elf32_v850_bed
4162
4163 #include "elf32-target.h"
4164
4165 /* Map BFD reloc types to V800 ELF reloc types. */
4166
4167 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4168 {
4169 { BFD_RELOC_NONE, R_V810_NONE },
4170 { BFD_RELOC_8, R_V810_BYTE },
4171 { BFD_RELOC_16, R_V810_HWORD },
4172 { BFD_RELOC_32, R_V810_WORD },
4173 { BFD_RELOC_LO16, R_V810_WLO },
4174 { BFD_RELOC_HI16, R_V810_WHI },
4175 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4176 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4177 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4178 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4179 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4180 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4181 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4182 { BFD_RELOC_V850_23, R_V850_WLO23 },
4183 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4184 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4185 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4186 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4187 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4188 };
4189
4190 /* Map a bfd relocation into the appropriate howto structure. */
4191
4192 static reloc_howto_type *
4193 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4194 {
4195 unsigned int i;
4196
4197 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4198
4199 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4200 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4201 {
4202 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4203 unsigned int idx = elf_reloc_val - R_V810_NONE;
4204
4205 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4206
4207 return v800_elf_howto_table + idx;
4208 }
4209
4210 #ifdef DEBUG
4211 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4212 #endif
4213 return NULL;
4214 }
4215
4216 static reloc_howto_type *
4217 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4218 {
4219 unsigned int i;
4220
4221 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4222
4223 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4224 if (v800_elf_howto_table[i].name != NULL
4225 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4226 return v800_elf_howto_table + i;
4227
4228 return NULL;
4229 }
4230
4231
4232 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4233
4234 static void
4235 v800_elf_info_to_howto (bfd * abfd,
4236 arelent * cache_ptr,
4237 Elf_Internal_Rela * dst)
4238 {
4239 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4240
4241 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4242
4243 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
4244
4245 if (r_type == R_V800_NONE)
4246 r_type = R_V810_NONE;
4247
4248 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
4249 r_type -= R_V810_NONE;
4250 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
4251
4252 cache_ptr->howto = v800_elf_howto_table + r_type;
4253 }
4254 \f
4255 #undef TARGET_LITTLE_SYM
4256 #define TARGET_LITTLE_SYM v800_elf32_vec
4257 #undef TARGET_LITTLE_NAME
4258 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4259 #undef ELF_ARCH
4260 #define ELF_ARCH bfd_arch_v850_rh850
4261 #undef ELF_MACHINE_CODE
4262 #define ELF_MACHINE_CODE EM_V800
4263 #undef ELF_MACHINE_ALT1
4264
4265 #undef elf32_bed
4266 #define elf32_bed elf32_v850_rh850_bed
4267
4268 #undef elf_info_to_howto
4269 #define elf_info_to_howto v800_elf_info_to_howto
4270 #undef elf_info_to_howto_rel
4271 #define elf_info_to_howto_rel NULL
4272 #undef bfd_elf32_bfd_reloc_type_lookup
4273 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4274 #undef bfd_elf32_bfd_reloc_name_lookup
4275 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4276
4277 #include "elf32-target.h"
GDB Binutils - Deliverables
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