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Remove trailing spaces in bfd
[deliverable/binutils-gdb.git] / bfd / elf32-v850.c
1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2015 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 (info->relocatable)
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 (info->relocatable)
2247 continue;
2248
2249 /* FIXME: We should use the addend, but the COFF relocations don't. */
2250 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2251 input_section,
2252 contents, rel->r_offset,
2253 relocation, rel->r_addend,
2254 info, sec, h == NULL);
2255
2256 if (r != bfd_reloc_ok)
2257 {
2258 const char * name;
2259 const char * msg = NULL;
2260
2261 if (h != NULL)
2262 name = h->root.root.string;
2263 else
2264 {
2265 name = (bfd_elf_string_from_elf_section
2266 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2267 if (name == NULL || *name == '\0')
2268 name = bfd_section_name (input_bfd, sec);
2269 }
2270
2271 switch ((int) r)
2272 {
2273 case bfd_reloc_overflow:
2274 if (! ((*info->callbacks->reloc_overflow)
2275 (info, (h ? &h->root : NULL), name, howto->name,
2276 (bfd_vma) 0, input_bfd, input_section,
2277 rel->r_offset)))
2278 return FALSE;
2279 break;
2280
2281 case bfd_reloc_undefined:
2282 if (! ((*info->callbacks->undefined_symbol)
2283 (info, name, input_bfd, input_section,
2284 rel->r_offset, TRUE)))
2285 return FALSE;
2286 break;
2287
2288 case bfd_reloc_outofrange:
2289 msg = _("internal error: out of range error");
2290 goto common_error;
2291
2292 case bfd_reloc_notsupported:
2293 msg = _("internal error: unsupported relocation error");
2294 goto common_error;
2295
2296 case bfd_reloc_dangerous:
2297 msg = _("internal error: dangerous relocation");
2298 goto common_error;
2299
2300 case bfd_reloc_gp_not_found:
2301 msg = _("could not locate special linker symbol __gp");
2302 goto common_error;
2303
2304 case bfd_reloc_ep_not_found:
2305 msg = _("could not locate special linker symbol __ep");
2306 goto common_error;
2307
2308 case bfd_reloc_ctbp_not_found:
2309 msg = _("could not locate special linker symbol __ctbp");
2310 goto common_error;
2311
2312 default:
2313 msg = _("internal error: unknown error");
2314 /* fall through */
2315
2316 common_error:
2317 if (!((*info->callbacks->warning)
2318 (info, msg, name, input_bfd, input_section,
2319 rel->r_offset)))
2320 return FALSE;
2321 break;
2322 }
2323 }
2324 }
2325
2326 return TRUE;
2327 }
2328
2329 static asection *
2330 v850_elf_gc_mark_hook (asection *sec,
2331 struct bfd_link_info *info,
2332 Elf_Internal_Rela *rel,
2333 struct elf_link_hash_entry *h,
2334 Elf_Internal_Sym *sym)
2335 {
2336 if (h != NULL)
2337 switch (ELF32_R_TYPE (rel->r_info))
2338 {
2339 case R_V850_GNU_VTINHERIT:
2340 case R_V850_GNU_VTENTRY:
2341 return NULL;
2342 }
2343
2344 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2345 }
2346
2347 static void
2348 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2349 {
2350 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2351
2352 bfd_put_32 (abfd, 4, data + 0);
2353 bfd_put_32 (abfd, 4, data + 4);
2354 bfd_put_32 (abfd, note, data + 8);
2355 memcpy (data + 12, V850_NOTE_NAME, 4);
2356 bfd_put_32 (abfd, val, data + 16);
2357 }
2358
2359 /* Create the note section if not already present. This is done early so
2360 that the linker maps the sections to the right place in the output. */
2361
2362 static asection *
2363 v850_elf_make_note_section (bfd * abfd)
2364 {
2365 asection *s;
2366 bfd_byte *data;
2367 flagword flags;
2368 enum v850_notes id;
2369
2370 /* Make the note section. */
2371 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2372
2373 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2374 if (s == NULL)
2375 return NULL;
2376
2377 if (!bfd_set_section_alignment (abfd, s, 2))
2378 return NULL;
2379
2380 /* Allocate space for all known notes. */
2381 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2382 return NULL;
2383
2384 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2385 if (data == NULL)
2386 return NULL;
2387
2388 s->contents = data;
2389
2390 /* Provide default (= uninitilaised) values for all of the notes. */
2391 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2392 v850_set_note (abfd, s, id, 0);
2393
2394 return s;
2395 }
2396
2397 /* Create the note section if not already present. This is done early so
2398 that the linker maps the sections to the right place in the output. */
2399
2400 bfd_boolean
2401 v850_elf_create_sections (struct bfd_link_info * info)
2402 {
2403 bfd * ibfd;
2404
2405 /* If we already have a note section, do not make another. */
2406 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2407 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2408 return TRUE;
2409
2410 return v850_elf_make_note_section (info->input_bfds) != NULL;
2411 }
2412
2413 bfd_boolean
2414 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2415 {
2416 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2417
2418 if (val > 2)
2419 /* At the moment, no known note has a value over 2. */
2420 return FALSE;
2421
2422 if (notes == NULL)
2423 notes = v850_elf_make_note_section (abfd);
2424 if (notes == NULL)
2425 return FALSE;
2426
2427 v850_set_note (abfd, notes, note, val);
2428 return TRUE;
2429 }
2430
2431 /* Copy backend specific data from one object module to another. */
2432
2433 static bfd_boolean
2434 v850_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd)
2435 {
2436 asection * onotes;
2437 asection * inotes;
2438
2439 /* If the output bfd does not have a note section, then
2440 skip the merge. The normal input to output section
2441 copying will take care of everythng for us. */
2442 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2443 return TRUE;
2444
2445 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2446 {
2447 bfd_byte * icont;
2448 bfd_byte * ocont;
2449
2450 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2451
2452 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2453 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2454
2455 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2456 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2457
2458 /* Copy/overwrite notes from the input to the output. */
2459 memcpy (ocont, icont, bfd_section_size (obfd, onotes));
2460 }
2461
2462 return TRUE;
2463 }
2464 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2465
2466 static bfd_boolean
2467 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2468 {
2469 asection * onotes;
2470 asection * inotes;
2471 bfd_boolean result = TRUE;
2472
2473 /* If the output bfd does not have a note section, then
2474 skip the merge. The normal input to output section
2475 copying will take care of everythng for us. */
2476 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2477 return TRUE;
2478
2479 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2480 {
2481 enum v850_notes id;
2482 bfd_byte * icont;
2483 bfd_byte * ocont;
2484
2485 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2486
2487 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2488 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2489
2490 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2491 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2492
2493 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2494 {
2495 unsigned int ival;
2496 unsigned int oval;
2497 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2498 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2499
2500 ival = bfd_get_32 (ibfd, idata);
2501 oval = bfd_get_32 (obfd, odata);
2502
2503 if (ival == 0 || ival == oval)
2504 continue;
2505
2506 if (oval == 0)
2507 {
2508 bfd_put_32 (obfd, ival, odata);
2509 v850_set_note (obfd, onotes, id, ival);
2510 continue;
2511 }
2512
2513 /* We have a mismatch. The ABI defines how to handle
2514 this siutation on a per note type basis. */
2515 switch (id)
2516 {
2517 case V850_NOTE_ALIGNMENT:
2518 if (oval == EF_RH850_DATA_ALIGN4)
2519 {
2520 _bfd_error_handler
2521 (_("error: %B needs 8-byte aligment but %B is set for 4-byte alignment"),
2522 ibfd, obfd);
2523 result = FALSE;
2524 }
2525 else
2526 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2527 Leave the obfd alignment as it is. */
2528 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2529
2530 break;
2531
2532 case V850_NOTE_DATA_SIZE:
2533 if (oval == EF_RH850_DOUBLE32)
2534 {
2535 _bfd_error_handler (_("error: %B uses 64-bit doubles but %B uses 32-bit doubles"),
2536 ibfd, obfd);
2537 result = FALSE;
2538 }
2539 else
2540 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2541 This is acceptable. Honest, that is what the ABI says. */
2542 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2543 break;
2544
2545 case V850_NOTE_FPU_INFO:
2546 if (oval == EF_RH850_FPU20)
2547 {
2548 _bfd_error_handler (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"),
2549 ibfd, obfd);
2550 result = FALSE;
2551 }
2552 else
2553 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2554 BFD_ASSERT (oval == EF_RH850_FPU30);
2555
2556 break;
2557
2558 default:
2559 /* None of the other conflicts matter.
2560 Stick with the current output values. */
2561 break;
2562 }
2563 }
2564
2565 /* FIXME: We should also check for conflicts between the notes
2566 and the EF flags in the ELF header. */
2567 }
2568
2569 return result;
2570 }
2571
2572 static void
2573 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2574 {
2575 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2576
2577 switch (id)
2578 {
2579 case V850_NOTE_ALIGNMENT:
2580 fprintf (file, _(" alignment of 8-byte entities: "));
2581 switch (value)
2582 {
2583 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2584 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2585 case 0: fprintf (file, _("not set")); break;
2586 default: fprintf (file, _("unknown: %x"), value); break;
2587 }
2588 fputc ('\n', file);
2589 break;
2590
2591 case V850_NOTE_DATA_SIZE:
2592 fprintf (file, _(" size of doubles: "));
2593 switch (value)
2594 {
2595 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2596 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2597 case 0: fprintf (file, _("not set")); break;
2598 default: fprintf (file, _("unknown: %x"), value); break;
2599 }
2600 fputc ('\n', file);
2601 break;
2602
2603 case V850_NOTE_FPU_INFO:
2604 fprintf (file, _(" FPU support required: "));
2605 switch (value)
2606 {
2607 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2608 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2609 case 0: fprintf (file, _("none")); break;
2610 default: fprintf (file, _("unknown: %x"), value); break;
2611 }
2612 fputc ('\n', file);
2613 break;
2614
2615 case V850_NOTE_SIMD_INFO:
2616 fprintf (file, _("SIMD use: "));
2617 switch (value)
2618 {
2619 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2620 case 0: fprintf (file, _("no")); break;
2621 default: fprintf (file, _("unknown: %x"), value); break;
2622 }
2623 fputc ('\n', file);
2624 break;
2625
2626 case V850_NOTE_CACHE_INFO:
2627 fprintf (file, _("CACHE use: "));
2628 switch (value)
2629 {
2630 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2631 case 0: fprintf (file, _("no")); break;
2632 default: fprintf (file, _("unknown: %x"), value); break;
2633 }
2634 fputc ('\n', file);
2635 break;
2636
2637 case V850_NOTE_MMU_INFO:
2638 fprintf (file, _("MMU use: "));
2639 switch (value)
2640 {
2641 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2642 case 0: fprintf (file, _("no")); break;
2643 default: fprintf (file, _("unknown: %x"), value); break;
2644 }
2645 fputc ('\n', file);
2646 break;
2647
2648 default:
2649 BFD_ASSERT (0);
2650 }
2651 }
2652
2653 static void
2654 v850_elf_print_notes (bfd * abfd, FILE * file)
2655 {
2656 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2657 enum v850_notes id;
2658
2659 if (notes == NULL || notes->contents == NULL)
2660 return;
2661
2662 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2663
2664 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2665 print_v850_note (abfd, file, notes->contents, id);
2666 }
2667
2668 /* Set the right machine number and architecture. */
2669
2670 static bfd_boolean
2671 v850_elf_object_p (bfd *abfd)
2672 {
2673 enum bfd_architecture arch;
2674 unsigned long mach;
2675
2676 switch (elf_elfheader (abfd)->e_machine)
2677 {
2678 case EM_V800:
2679 arch = bfd_arch_v850_rh850;
2680 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2681 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2682 break;
2683
2684 case EM_CYGNUS_V850:
2685 case EM_V850:
2686 arch = bfd_arch_v850;
2687 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2688 {
2689 default:
2690 case E_V850_ARCH: mach = bfd_mach_v850; break;
2691 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2692 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2693 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2694 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2695 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2696 }
2697 break;
2698
2699 default:
2700 return FALSE;
2701 }
2702
2703 return bfd_default_set_arch_mach (abfd, arch, mach);
2704 }
2705
2706 /* Store the machine number in the flags field. */
2707
2708 static void
2709 v850_elf_final_write_processing (bfd *abfd,
2710 bfd_boolean linker ATTRIBUTE_UNUSED)
2711 {
2712 unsigned long val;
2713
2714 switch (bfd_get_arch (abfd))
2715 {
2716 case bfd_arch_v850_rh850:
2717 val = EF_RH850_ABI;
2718 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2719 val |= EF_V800_850E3;
2720 elf_elfheader (abfd)->e_flags |= val;
2721 break;
2722
2723 case bfd_arch_v850:
2724 switch (bfd_get_mach (abfd))
2725 {
2726 default:
2727 case bfd_mach_v850: val = E_V850_ARCH; break;
2728 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2729 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2730 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2731 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2732 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2733 }
2734 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2735 elf_elfheader (abfd)->e_flags |= val;
2736 break;
2737 default:
2738 break;
2739 }
2740 }
2741
2742 /* Function to keep V850 specific file flags. */
2743
2744 static bfd_boolean
2745 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2746 {
2747 BFD_ASSERT (!elf_flags_init (abfd)
2748 || elf_elfheader (abfd)->e_flags == flags);
2749
2750 elf_elfheader (abfd)->e_flags = flags;
2751 elf_flags_init (abfd) = TRUE;
2752 return TRUE;
2753 }
2754
2755 /* Merge backend specific data from an object file
2756 to the output object file when linking. */
2757
2758 static bfd_boolean
2759 v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2760 {
2761 flagword out_flags;
2762 flagword in_flags;
2763 bfd_boolean result = TRUE;
2764
2765 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2766 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2767 return TRUE;
2768
2769 result &= v850_elf_merge_notes (ibfd, obfd);
2770
2771 in_flags = elf_elfheader (ibfd)->e_flags;
2772 out_flags = elf_elfheader (obfd)->e_flags;
2773
2774 if (! elf_flags_init (obfd))
2775 {
2776 /* If the input is the default architecture then do not
2777 bother setting the flags for the output architecture,
2778 instead allow future merges to do this. If no future
2779 merges ever set these flags then they will retain their
2780 unitialised values, which surprise surprise, correspond
2781 to the default values. */
2782 if (bfd_get_arch_info (ibfd)->the_default)
2783 return TRUE;
2784
2785 elf_flags_init (obfd) = TRUE;
2786 elf_elfheader (obfd)->e_flags = in_flags;
2787
2788 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2789 && bfd_get_arch_info (obfd)->the_default)
2790 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2791
2792 return result;
2793 }
2794
2795 /* Check flag compatibility. */
2796 if (in_flags == out_flags)
2797 return result;
2798
2799 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2800 {
2801 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2802 {
2803 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2804 ibfd);
2805 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2806 }
2807
2808 return result;
2809 }
2810
2811 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2812 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2813 {
2814 /* Allow earlier architecture binaries to be linked with later binaries.
2815 Set the output binary to the later architecture, except for v850e1,
2816 which we set to v850e. */
2817 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2818 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2819 return result;
2820
2821 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2822 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2823 {
2824 elf_elfheader (obfd)->e_flags =
2825 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2826 return result;
2827 }
2828
2829 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2830 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2831 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2832 {
2833 elf_elfheader (obfd)->e_flags =
2834 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2835 return result;
2836 }
2837
2838 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2839 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2840 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2841 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2842 {
2843 elf_elfheader (obfd)->e_flags =
2844 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2845 return result;
2846 }
2847
2848 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2849 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2850 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2851 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2852 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2853 {
2854 elf_elfheader (obfd)->e_flags =
2855 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2856 return result;
2857 }
2858
2859 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2860 ibfd);
2861 }
2862
2863 return result;
2864 }
2865
2866 /* Display the flags field. */
2867
2868 static bfd_boolean
2869 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2870 {
2871 FILE * file = (FILE *) ptr;
2872
2873 BFD_ASSERT (abfd != NULL && ptr != NULL);
2874
2875 _bfd_elf_print_private_bfd_data (abfd, ptr);
2876
2877 /* xgettext:c-format. */
2878 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2879
2880 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2881 {
2882 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2883 fprintf (file, _("unknown v850 architecture"));
2884 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2885 fprintf (file, _("v850 E3 architecture"));
2886 else
2887 fprintf (file, _("v850 architecture"));
2888 }
2889 else
2890 {
2891 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2892 {
2893 default:
2894 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2895 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2896 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2897 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2898 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2899 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2900 }
2901 }
2902
2903 fputc ('\n', file);
2904
2905 v850_elf_print_notes (abfd, file);
2906
2907 return TRUE;
2908 }
2909
2910 /* V850 ELF uses four common sections. One is the usual one, and the
2911 others are for (small) objects in one of the special data areas:
2912 small, tiny and zero. All the objects are kept together, and then
2913 referenced via the gp register, the ep register or the r0 register
2914 respectively, which yields smaller, faster assembler code. This
2915 approach is copied from elf32-mips.c. */
2916
2917 static asection v850_elf_scom_section;
2918 static asymbol v850_elf_scom_symbol;
2919 static asymbol * v850_elf_scom_symbol_ptr;
2920 static asection v850_elf_tcom_section;
2921 static asymbol v850_elf_tcom_symbol;
2922 static asymbol * v850_elf_tcom_symbol_ptr;
2923 static asection v850_elf_zcom_section;
2924 static asymbol v850_elf_zcom_symbol;
2925 static asymbol * v850_elf_zcom_symbol_ptr;
2926
2927 /* Given a BFD section, try to locate the
2928 corresponding ELF section index. */
2929
2930 static bfd_boolean
2931 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2932 asection *sec,
2933 int *retval)
2934 {
2935 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2936 *retval = SHN_V850_SCOMMON;
2937 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2938 *retval = SHN_V850_TCOMMON;
2939 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2940 *retval = SHN_V850_ZCOMMON;
2941 else
2942 return FALSE;
2943
2944 return TRUE;
2945 }
2946
2947 /* Handle the special V850 section numbers that a symbol may use. */
2948
2949 static void
2950 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2951 {
2952 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2953 unsigned int indx;
2954
2955 indx = elfsym->internal_elf_sym.st_shndx;
2956
2957 /* If the section index is an "ordinary" index, then it may
2958 refer to a v850 specific section created by the assembler.
2959 Check the section's type and change the index it matches.
2960
2961 FIXME: Should we alter the st_shndx field as well ? */
2962
2963 if (indx < elf_numsections (abfd))
2964 switch (elf_elfsections (abfd)[indx]->sh_type)
2965 {
2966 case SHT_V850_SCOMMON:
2967 indx = SHN_V850_SCOMMON;
2968 break;
2969
2970 case SHT_V850_TCOMMON:
2971 indx = SHN_V850_TCOMMON;
2972 break;
2973
2974 case SHT_V850_ZCOMMON:
2975 indx = SHN_V850_ZCOMMON;
2976 break;
2977
2978 default:
2979 break;
2980 }
2981
2982 switch (indx)
2983 {
2984 case SHN_V850_SCOMMON:
2985 if (v850_elf_scom_section.name == NULL)
2986 {
2987 /* Initialize the small common section. */
2988 v850_elf_scom_section.name = ".scommon";
2989 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2990 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2991 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
2992 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
2993 v850_elf_scom_symbol.name = ".scommon";
2994 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
2995 v850_elf_scom_symbol.section = & v850_elf_scom_section;
2996 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
2997 }
2998 asym->section = & v850_elf_scom_section;
2999 asym->value = elfsym->internal_elf_sym.st_size;
3000 break;
3001
3002 case SHN_V850_TCOMMON:
3003 if (v850_elf_tcom_section.name == NULL)
3004 {
3005 /* Initialize the tcommon section. */
3006 v850_elf_tcom_section.name = ".tcommon";
3007 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3008 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3009 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3010 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3011 v850_elf_tcom_symbol.name = ".tcommon";
3012 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3013 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3014 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3015 }
3016 asym->section = & v850_elf_tcom_section;
3017 asym->value = elfsym->internal_elf_sym.st_size;
3018 break;
3019
3020 case SHN_V850_ZCOMMON:
3021 if (v850_elf_zcom_section.name == NULL)
3022 {
3023 /* Initialize the zcommon section. */
3024 v850_elf_zcom_section.name = ".zcommon";
3025 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3026 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3027 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3028 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3029 v850_elf_zcom_symbol.name = ".zcommon";
3030 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3031 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3032 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3033 }
3034 asym->section = & v850_elf_zcom_section;
3035 asym->value = elfsym->internal_elf_sym.st_size;
3036 break;
3037 }
3038 }
3039
3040 /* Hook called by the linker routine which adds symbols from an object
3041 file. We must handle the special v850 section numbers here. */
3042
3043 static bfd_boolean
3044 v850_elf_add_symbol_hook (bfd *abfd,
3045 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3046 Elf_Internal_Sym *sym,
3047 const char **namep ATTRIBUTE_UNUSED,
3048 flagword *flagsp ATTRIBUTE_UNUSED,
3049 asection **secp,
3050 bfd_vma *valp)
3051 {
3052 unsigned int indx = sym->st_shndx;
3053
3054 /* If the section index is an "ordinary" index, then it may
3055 refer to a v850 specific section created by the assembler.
3056 Check the section's type and change the index it matches.
3057
3058 FIXME: Should we alter the st_shndx field as well ? */
3059
3060 if (indx < elf_numsections (abfd))
3061 switch (elf_elfsections (abfd)[indx]->sh_type)
3062 {
3063 case SHT_V850_SCOMMON:
3064 indx = SHN_V850_SCOMMON;
3065 break;
3066
3067 case SHT_V850_TCOMMON:
3068 indx = SHN_V850_TCOMMON;
3069 break;
3070
3071 case SHT_V850_ZCOMMON:
3072 indx = SHN_V850_ZCOMMON;
3073 break;
3074
3075 default:
3076 break;
3077 }
3078
3079 switch (indx)
3080 {
3081 case SHN_V850_SCOMMON:
3082 *secp = bfd_make_section_old_way (abfd, ".scommon");
3083 (*secp)->flags |= SEC_IS_COMMON;
3084 *valp = sym->st_size;
3085 break;
3086
3087 case SHN_V850_TCOMMON:
3088 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3089 (*secp)->flags |= SEC_IS_COMMON;
3090 *valp = sym->st_size;
3091 break;
3092
3093 case SHN_V850_ZCOMMON:
3094 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3095 (*secp)->flags |= SEC_IS_COMMON;
3096 *valp = sym->st_size;
3097 break;
3098 }
3099
3100 return TRUE;
3101 }
3102
3103 static int
3104 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3105 const char *name ATTRIBUTE_UNUSED,
3106 Elf_Internal_Sym *sym,
3107 asection *input_sec,
3108 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3109 {
3110 /* If we see a common symbol, which implies a relocatable link, then
3111 if a symbol was in a special common section in an input file, mark
3112 it as a special common in the output file. */
3113
3114 if (sym->st_shndx == SHN_COMMON)
3115 {
3116 if (strcmp (input_sec->name, ".scommon") == 0)
3117 sym->st_shndx = SHN_V850_SCOMMON;
3118 else if (strcmp (input_sec->name, ".tcommon") == 0)
3119 sym->st_shndx = SHN_V850_TCOMMON;
3120 else if (strcmp (input_sec->name, ".zcommon") == 0)
3121 sym->st_shndx = SHN_V850_ZCOMMON;
3122 }
3123
3124 /* The price we pay for using h->other unused bits as flags in the
3125 linker is cleaning up after ourselves. */
3126
3127 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3128 | V850_OTHER_ERROR);
3129
3130 return 1;
3131 }
3132
3133 static bfd_boolean
3134 v850_elf_section_from_shdr (bfd *abfd,
3135 Elf_Internal_Shdr *hdr,
3136 const char *name,
3137 int shindex)
3138 {
3139 /* There ought to be a place to keep ELF backend specific flags, but
3140 at the moment there isn't one. We just keep track of the
3141 sections by their name, instead. */
3142
3143 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3144 return FALSE;
3145
3146 switch (hdr->sh_type)
3147 {
3148 case SHT_V850_SCOMMON:
3149 case SHT_V850_TCOMMON:
3150 case SHT_V850_ZCOMMON:
3151 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3152 (bfd_get_section_flags (abfd,
3153 hdr->bfd_section)
3154 | SEC_IS_COMMON)))
3155 return FALSE;
3156 }
3157
3158 return TRUE;
3159 }
3160
3161 /* Set the correct type for a V850 ELF section. We do this
3162 by the section name, which is a hack, but ought to work. */
3163
3164 static bfd_boolean
3165 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3166 Elf_Internal_Shdr *hdr,
3167 asection *sec)
3168 {
3169 const char * name;
3170
3171 name = bfd_get_section_name (abfd, sec);
3172
3173 if (strcmp (name, ".scommon") == 0)
3174 hdr->sh_type = SHT_V850_SCOMMON;
3175 else if (strcmp (name, ".tcommon") == 0)
3176 hdr->sh_type = SHT_V850_TCOMMON;
3177 else if (strcmp (name, ".zcommon") == 0)
3178 hdr->sh_type = SHT_V850_ZCOMMON;
3179 /* Tweak the section type of .note.renesas. */
3180 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3181 {
3182 hdr->sh_type = SHT_RENESAS_INFO;
3183 hdr->sh_entsize = SIZEOF_V850_NOTE;
3184 }
3185
3186 return TRUE;
3187 }
3188
3189 /* Delete some bytes from a section while relaxing. */
3190
3191 static bfd_boolean
3192 v850_elf_relax_delete_bytes (bfd *abfd,
3193 asection *sec,
3194 bfd_vma addr,
3195 bfd_vma toaddr,
3196 int count)
3197 {
3198 Elf_Internal_Shdr *symtab_hdr;
3199 Elf32_External_Sym *extsyms;
3200 Elf32_External_Sym *esym;
3201 Elf32_External_Sym *esymend;
3202 int sym_index;
3203 unsigned int sec_shndx;
3204 bfd_byte *contents;
3205 Elf_Internal_Rela *irel;
3206 Elf_Internal_Rela *irelend;
3207 struct elf_link_hash_entry *sym_hash;
3208 Elf_Internal_Shdr *shndx_hdr;
3209 Elf_External_Sym_Shndx *shndx;
3210
3211 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3212 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3213
3214 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3215
3216 contents = elf_section_data (sec)->this_hdr.contents;
3217
3218 /* The deletion must stop at the next ALIGN reloc for an alignment
3219 power larger than the number of bytes we are deleting. */
3220
3221 /* Actually delete the bytes. */
3222 #if (DEBUG_RELAX & 2)
3223 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3224 sec->name, addr, toaddr, count );
3225 #endif
3226 memmove (contents + addr, contents + addr + count,
3227 toaddr - addr - count);
3228 memset (contents + toaddr-count, 0, count);
3229
3230 /* Adjust all the relocs. */
3231 irel = elf_section_data (sec)->relocs;
3232 irelend = irel + sec->reloc_count;
3233 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
3234 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3235
3236 for (; irel < irelend; irel++)
3237 {
3238 bfd_vma raddr, paddr, symval;
3239 Elf_Internal_Sym isym;
3240
3241 /* Get the new reloc address. */
3242 raddr = irel->r_offset;
3243 if ((raddr >= (addr + count) && raddr < toaddr))
3244 irel->r_offset -= count;
3245
3246 if (raddr >= addr && raddr < addr + count)
3247 {
3248 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3249 (int) R_V850_NONE);
3250 continue;
3251 }
3252
3253 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3254 continue;
3255
3256 bfd_elf32_swap_symbol_in (abfd,
3257 extsyms + ELF32_R_SYM (irel->r_info),
3258 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3259 & isym);
3260
3261 if (isym.st_shndx != sec_shndx)
3262 continue;
3263
3264 /* Get the value of the symbol referred to by the reloc. */
3265 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3266 {
3267 symval = isym.st_value;
3268 #if (DEBUG_RELAX & 2)
3269 {
3270 char * name = bfd_elf_string_from_elf_section
3271 (abfd, symtab_hdr->sh_link, isym.st_name);
3272 fprintf (stderr,
3273 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3274 sec->name, name, isym.st_name,
3275 sec->output_section->vma, sec->output_offset,
3276 isym.st_value, irel->r_addend);
3277 }
3278 #endif
3279 }
3280 else
3281 {
3282 unsigned long indx;
3283 struct elf_link_hash_entry * h;
3284
3285 /* An external symbol. */
3286 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3287
3288 h = elf_sym_hashes (abfd) [indx];
3289 BFD_ASSERT (h != NULL);
3290
3291 symval = h->root.u.def.value;
3292 #if (DEBUG_RELAX & 2)
3293 fprintf (stderr,
3294 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3295 sec->name, h->root.root.string, h->root.u.def.value,
3296 sec->output_section->vma, sec->output_offset, irel->r_addend);
3297 #endif
3298 }
3299
3300 paddr = symval + irel->r_addend;
3301
3302 if ( (symval >= addr + count && symval < toaddr)
3303 && (paddr < addr + count || paddr >= toaddr))
3304 irel->r_addend += count;
3305 else if ( (symval < addr + count || symval >= toaddr)
3306 && (paddr >= addr + count && paddr < toaddr))
3307 irel->r_addend -= count;
3308 }
3309
3310 /* Adjust the local symbols defined in this section. */
3311 esym = extsyms;
3312 esymend = esym + symtab_hdr->sh_info;
3313
3314 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3315 {
3316 Elf_Internal_Sym isym;
3317
3318 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3319
3320 if (isym.st_shndx == sec_shndx
3321 && isym.st_value >= addr + count
3322 && isym.st_value < toaddr)
3323 {
3324 isym.st_value -= count;
3325
3326 if (isym.st_value + isym.st_size >= toaddr)
3327 isym.st_size += count;
3328
3329 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3330 }
3331 else if (isym.st_shndx == sec_shndx
3332 && isym.st_value < addr + count)
3333 {
3334 if (isym.st_value+isym.st_size >= addr + count
3335 && isym.st_value+isym.st_size < toaddr)
3336 isym.st_size -= count;
3337
3338 if (isym.st_value >= addr
3339 && isym.st_value < addr + count)
3340 isym.st_value = addr;
3341
3342 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3343 }
3344 }
3345
3346 /* Now adjust the global symbols defined in this section. */
3347 esym = extsyms + symtab_hdr->sh_info;
3348 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3349
3350 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3351 {
3352 Elf_Internal_Sym isym;
3353
3354 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3355 sym_hash = elf_sym_hashes (abfd) [sym_index];
3356
3357 if (isym.st_shndx == sec_shndx
3358 && ((sym_hash)->root.type == bfd_link_hash_defined
3359 || (sym_hash)->root.type == bfd_link_hash_defweak)
3360 && (sym_hash)->root.u.def.section == sec
3361 && (sym_hash)->root.u.def.value >= addr + count
3362 && (sym_hash)->root.u.def.value < toaddr)
3363 {
3364 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3365 {
3366 isym.st_size += count;
3367 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3368 }
3369
3370 (sym_hash)->root.u.def.value -= count;
3371 }
3372 else if (isym.st_shndx == sec_shndx
3373 && ((sym_hash)->root.type == bfd_link_hash_defined
3374 || (sym_hash)->root.type == bfd_link_hash_defweak)
3375 && (sym_hash)->root.u.def.section == sec
3376 && (sym_hash)->root.u.def.value < addr + count)
3377 {
3378 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3379 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3380 isym.st_size -= count;
3381
3382 if ((sym_hash)->root.u.def.value >= addr
3383 && (sym_hash)->root.u.def.value < addr + count)
3384 (sym_hash)->root.u.def.value = addr;
3385
3386 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3387 }
3388
3389 if (shndx)
3390 ++ shndx;
3391 }
3392
3393 return TRUE;
3394 }
3395
3396 #define NOP_OPCODE (0x0000)
3397 #define MOVHI 0x0640 /* 4byte. */
3398 #define MOVHI_MASK 0x07e0
3399 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3400 #define MOVHI_R2(insn) ((insn) >> 11)
3401 #define MOVEA 0x0620 /* 2byte. */
3402 #define MOVEA_MASK 0x07e0
3403 #define MOVEA_R1(insn) ((insn) & 0x1f)
3404 #define MOVEA_R2(insn) ((insn) >> 11)
3405 #define JARL_4 0x00040780 /* 4byte. */
3406 #define JARL_4_MASK 0xFFFF07FF
3407 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3408 #define ADD_I 0x0240 /* 2byte. */
3409 #define ADD_I_MASK 0x07e0
3410 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3411 #define ADD_R2(insn) ((insn) >> 11)
3412 #define JMP_R 0x0060 /* 2byte. */
3413 #define JMP_R_MASK 0xFFE0
3414 #define JMP_R1(insn) ((insn) & 0x1f)
3415
3416 static bfd_boolean
3417 v850_elf_relax_section (bfd *abfd,
3418 asection *sec,
3419 struct bfd_link_info *link_info,
3420 bfd_boolean *again)
3421 {
3422 Elf_Internal_Shdr *symtab_hdr;
3423 Elf_Internal_Rela *internal_relocs;
3424 Elf_Internal_Rela *irel;
3425 Elf_Internal_Rela *irelend;
3426 Elf_Internal_Rela *irelalign = NULL;
3427 Elf_Internal_Sym *isymbuf = NULL;
3428 bfd_byte *contents = NULL;
3429 bfd_vma addr = 0;
3430 bfd_vma toaddr;
3431 int align_pad_size = 0;
3432 bfd_boolean result = TRUE;
3433
3434 *again = FALSE;
3435
3436 if (link_info->relocatable
3437 || (sec->flags & SEC_RELOC) == 0
3438 || sec->reloc_count == 0)
3439 return TRUE;
3440
3441 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3442
3443 internal_relocs = (_bfd_elf_link_read_relocs
3444 (abfd, sec, NULL, NULL, link_info->keep_memory));
3445 if (internal_relocs == NULL)
3446 goto error_return;
3447
3448 irelend = internal_relocs + sec->reloc_count;
3449
3450 while (addr < sec->size)
3451 {
3452 toaddr = sec->size;
3453
3454 for (irel = internal_relocs; irel < irelend; irel ++)
3455 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3456 && irel->r_offset > addr
3457 && irel->r_offset < toaddr)
3458 toaddr = irel->r_offset;
3459
3460 #ifdef DEBUG_RELAX
3461 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3462 addr, toaddr, align_pad_size);
3463 #endif
3464 if (irelalign)
3465 {
3466 bfd_vma alignto;
3467 bfd_vma alignmoveto;
3468
3469 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3470 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3471
3472 if (alignmoveto < alignto)
3473 {
3474 bfd_vma i;
3475
3476 align_pad_size = alignto - alignmoveto;
3477 #ifdef DEBUG_RELAX
3478 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3479 alignmoveto, toaddr, align_pad_size);
3480 #endif
3481 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3482 toaddr, align_pad_size))
3483 goto error_return;
3484
3485 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3486 (i + 1) < toaddr; i += 2)
3487 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3488
3489 addr = alignmoveto;
3490 }
3491 else
3492 align_pad_size = 0;
3493 }
3494
3495 for (irel = internal_relocs; irel < irelend; irel++)
3496 {
3497 bfd_vma laddr;
3498 bfd_vma addend;
3499 bfd_vma symval;
3500 int insn[5];
3501 int no_match = -1;
3502 Elf_Internal_Rela *hi_irelfn;
3503 Elf_Internal_Rela *lo_irelfn;
3504 Elf_Internal_Rela *irelcall;
3505 bfd_signed_vma foff;
3506 unsigned int r_type;
3507
3508 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3509 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3510 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3511 continue;
3512
3513 #ifdef DEBUG_RELAX
3514 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3515 irel->r_info,
3516 irel->r_offset,
3517 irel->r_addend );
3518 #endif
3519
3520 /* Get the section contents. */
3521 if (contents == NULL)
3522 {
3523 if (elf_section_data (sec)->this_hdr.contents != NULL)
3524 contents = elf_section_data (sec)->this_hdr.contents;
3525 else
3526 {
3527 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3528 goto error_return;
3529 }
3530 }
3531
3532 /* Read this BFD's local symbols if we haven't done so already. */
3533 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3534 {
3535 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3536 if (isymbuf == NULL)
3537 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3538 symtab_hdr->sh_info, 0,
3539 NULL, NULL, NULL);
3540 if (isymbuf == NULL)
3541 goto error_return;
3542 }
3543
3544 laddr = irel->r_offset;
3545
3546 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3547 {
3548 /* Check code for -mlong-calls output. */
3549 if (laddr + 16 <= (bfd_vma) sec->size)
3550 {
3551 insn[0] = bfd_get_16 (abfd, contents + laddr);
3552 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3553 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3554 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3555 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3556
3557 if ((insn[0] & MOVHI_MASK) != MOVHI
3558 || MOVHI_R1 (insn[0]) != 0)
3559 no_match = 0;
3560
3561 if (no_match < 0
3562 && ((insn[1] & MOVEA_MASK) != MOVEA
3563 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3564 no_match = 1;
3565
3566 if (no_match < 0
3567 && (insn[2] & JARL_4_MASK) != JARL_4)
3568 no_match = 2;
3569
3570 if (no_match < 0
3571 && ((insn[3] & ADD_I_MASK) != ADD_I
3572 || ADD_I5 (insn[3]) != 4
3573 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3574 no_match = 3;
3575
3576 if (no_match < 0
3577 && ((insn[4] & JMP_R_MASK) != JMP_R
3578 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3579 no_match = 4;
3580 }
3581 else
3582 {
3583 ((*_bfd_error_handler)
3584 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
3585 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3586
3587 continue;
3588 }
3589
3590 if (no_match >= 0)
3591 {
3592 ((*_bfd_error_handler)
3593 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
3594 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3595
3596 continue;
3597 }
3598
3599 /* Get the reloc for the address from which the register is
3600 being loaded. This reloc will tell us which function is
3601 actually being called. */
3602
3603 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3604 {
3605 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3606
3607 if (hi_irelfn->r_offset == laddr + 2
3608 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3609 break;
3610 }
3611
3612 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3613 {
3614 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3615
3616 if (lo_irelfn->r_offset == laddr + 6
3617 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3618 break;
3619 }
3620
3621 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3622 {
3623 r_type = ELF32_R_TYPE (irelcall->r_info);
3624
3625 if (irelcall->r_offset == laddr + 8
3626 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3627 break;
3628 }
3629
3630 if ( hi_irelfn == irelend
3631 || lo_irelfn == irelend
3632 || irelcall == irelend)
3633 {
3634 ((*_bfd_error_handler)
3635 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
3636 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3637
3638 continue;
3639 }
3640
3641 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3642 {
3643 Elf_Internal_Sym * isym;
3644
3645 /* A local symbol. */
3646 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3647
3648 symval = isym->st_value;
3649 }
3650 else
3651 {
3652 unsigned long indx;
3653 struct elf_link_hash_entry * h;
3654
3655 /* An external symbol. */
3656 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3657 h = elf_sym_hashes (abfd)[indx];
3658 BFD_ASSERT (h != NULL);
3659
3660 if ( h->root.type != bfd_link_hash_defined
3661 && h->root.type != bfd_link_hash_defweak)
3662 /* This appears to be a reference to an undefined
3663 symbol. Just ignore it--it will be caught by the
3664 regular reloc processing. */
3665 continue;
3666
3667 symval = h->root.u.def.value;
3668 }
3669
3670 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3671 {
3672 ((*_bfd_error_handler)
3673 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
3674 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
3675
3676 continue;
3677 }
3678
3679 /* Get the value of the symbol referred to by the reloc. */
3680 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3681 {
3682 Elf_Internal_Sym *isym;
3683 asection *sym_sec;
3684
3685 /* A local symbol. */
3686 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3687
3688 if (isym->st_shndx == SHN_UNDEF)
3689 sym_sec = bfd_und_section_ptr;
3690 else if (isym->st_shndx == SHN_ABS)
3691 sym_sec = bfd_abs_section_ptr;
3692 else if (isym->st_shndx == SHN_COMMON)
3693 sym_sec = bfd_com_section_ptr;
3694 else
3695 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3696 symval = (isym->st_value
3697 + sym_sec->output_section->vma
3698 + sym_sec->output_offset);
3699 }
3700 else
3701 {
3702 unsigned long indx;
3703 struct elf_link_hash_entry *h;
3704
3705 /* An external symbol. */
3706 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3707 h = elf_sym_hashes (abfd)[indx];
3708 BFD_ASSERT (h != NULL);
3709
3710 if ( h->root.type != bfd_link_hash_defined
3711 && h->root.type != bfd_link_hash_defweak)
3712 /* This appears to be a reference to an undefined
3713 symbol. Just ignore it--it will be caught by the
3714 regular reloc processing. */
3715 continue;
3716
3717 symval = (h->root.u.def.value
3718 + h->root.u.def.section->output_section->vma
3719 + h->root.u.def.section->output_offset);
3720 }
3721
3722 addend = irel->r_addend;
3723
3724 foff = (symval + addend
3725 - (irel->r_offset
3726 + sec->output_section->vma
3727 + sec->output_offset
3728 + 4));
3729 #ifdef DEBUG_RELAX
3730 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3731 irel->r_offset,
3732 (irel->r_offset
3733 + sec->output_section->vma
3734 + sec->output_offset),
3735 symval, addend, foff);
3736 #endif
3737
3738 if (foff < -0x100000 || foff >= 0x100000)
3739 /* After all that work, we can't shorten this function call. */
3740 continue;
3741
3742 /* For simplicity of coding, we are going to modify the section
3743 contents, the section relocs, and the BFD symbol table. We
3744 must tell the rest of the code not to free up this
3745 information. It would be possible to instead create a table
3746 of changes which have to be made, as is done in coff-mips.c;
3747 that would be more work, but would require less memory when
3748 the linker is run. */
3749 elf_section_data (sec)->relocs = internal_relocs;
3750 elf_section_data (sec)->this_hdr.contents = contents;
3751 symtab_hdr->contents = (bfd_byte *) isymbuf;
3752
3753 /* Replace the long call with a jarl. */
3754 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3755 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3756 else
3757 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3758
3759 addend = 0;
3760
3761 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3762 /* If this needs to be changed because of future relaxing,
3763 it will be handled here like other internal IND12W
3764 relocs. */
3765 bfd_put_32 (abfd,
3766 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3767 contents + irel->r_offset);
3768 else
3769 /* We can't fully resolve this yet, because the external
3770 symbol value may be changed by future relaxing.
3771 We let the final link phase handle it. */
3772 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3773 contents + irel->r_offset);
3774
3775 hi_irelfn->r_info =
3776 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3777 lo_irelfn->r_info =
3778 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3779 irelcall->r_info =
3780 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3781
3782 if (! v850_elf_relax_delete_bytes (abfd, sec,
3783 irel->r_offset + 4, toaddr, 12))
3784 goto error_return;
3785
3786 align_pad_size += 12;
3787 }
3788 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3789 {
3790 /* Check code for -mlong-jumps output. */
3791 if (laddr + 10 <= (bfd_vma) sec->size)
3792 {
3793 insn[0] = bfd_get_16 (abfd, contents + laddr);
3794 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3795 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3796
3797 if ((insn[0] & MOVHI_MASK) != MOVHI
3798 || MOVHI_R1 (insn[0]) != 0)
3799 no_match = 0;
3800
3801 if (no_match < 0
3802 && ((insn[1] & MOVEA_MASK) != MOVEA
3803 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3804 no_match = 1;
3805
3806 if (no_match < 0
3807 && ((insn[2] & JMP_R_MASK) != JMP_R
3808 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3809 no_match = 4;
3810 }
3811 else
3812 {
3813 ((*_bfd_error_handler)
3814 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
3815 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3816
3817 continue;
3818 }
3819
3820 if (no_match >= 0)
3821 {
3822 ((*_bfd_error_handler)
3823 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
3824 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3825
3826 continue;
3827 }
3828
3829 /* Get the reloc for the address from which the register is
3830 being loaded. This reloc will tell us which function is
3831 actually being called. */
3832 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3833 {
3834 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3835
3836 if (hi_irelfn->r_offset == laddr + 2
3837 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3838 break;
3839 }
3840
3841 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3842 {
3843 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3844
3845 if (lo_irelfn->r_offset == laddr + 6
3846 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3847 break;
3848 }
3849
3850 if ( hi_irelfn == irelend
3851 || lo_irelfn == irelend)
3852 {
3853 ((*_bfd_error_handler)
3854 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
3855 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3856
3857 continue;
3858 }
3859
3860 /* Get the value of the symbol referred to by the reloc. */
3861 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3862 {
3863 Elf_Internal_Sym * isym;
3864 asection * sym_sec;
3865
3866 /* A local symbol. */
3867 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3868
3869 if (isym->st_shndx == SHN_UNDEF)
3870 sym_sec = bfd_und_section_ptr;
3871 else if (isym->st_shndx == SHN_ABS)
3872 sym_sec = bfd_abs_section_ptr;
3873 else if (isym->st_shndx == SHN_COMMON)
3874 sym_sec = bfd_com_section_ptr;
3875 else
3876 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3877 symval = (isym->st_value
3878 + sym_sec->output_section->vma
3879 + sym_sec->output_offset);
3880 #ifdef DEBUG_RELAX
3881 {
3882 char * name = bfd_elf_string_from_elf_section
3883 (abfd, symtab_hdr->sh_link, isym->st_name);
3884
3885 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3886 sym_sec->name, name, isym->st_name,
3887 sym_sec->output_section->vma,
3888 sym_sec->output_offset,
3889 isym->st_value, irel->r_addend);
3890 }
3891 #endif
3892 }
3893 else
3894 {
3895 unsigned long indx;
3896 struct elf_link_hash_entry * h;
3897
3898 /* An external symbol. */
3899 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3900 h = elf_sym_hashes (abfd)[indx];
3901 BFD_ASSERT (h != NULL);
3902
3903 if ( h->root.type != bfd_link_hash_defined
3904 && h->root.type != bfd_link_hash_defweak)
3905 /* This appears to be a reference to an undefined
3906 symbol. Just ignore it--it will be caught by the
3907 regular reloc processing. */
3908 continue;
3909
3910 symval = (h->root.u.def.value
3911 + h->root.u.def.section->output_section->vma
3912 + h->root.u.def.section->output_offset);
3913 #ifdef DEBUG_RELAX
3914 fprintf (stderr,
3915 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3916 sec->name, h->root.root.string, h->root.u.def.value,
3917 sec->output_section->vma, sec->output_offset, irel->r_addend);
3918 #endif
3919 }
3920
3921 addend = irel->r_addend;
3922
3923 foff = (symval + addend
3924 - (irel->r_offset
3925 + sec->output_section->vma
3926 + sec->output_offset
3927 + 4));
3928 #ifdef DEBUG_RELAX
3929 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3930 irel->r_offset,
3931 (irel->r_offset
3932 + sec->output_section->vma
3933 + sec->output_offset),
3934 symval, addend, foff);
3935 #endif
3936 if (foff < -0x100000 || foff >= 0x100000)
3937 /* After all that work, we can't shorten this function call. */
3938 continue;
3939
3940 /* For simplicity of coding, we are going to modify the section
3941 contents, the section relocs, and the BFD symbol table. We
3942 must tell the rest of the code not to free up this
3943 information. It would be possible to instead create a table
3944 of changes which have to be made, as is done in coff-mips.c;
3945 that would be more work, but would require less memory when
3946 the linker is run. */
3947 elf_section_data (sec)->relocs = internal_relocs;
3948 elf_section_data (sec)->this_hdr.contents = contents;
3949 symtab_hdr->contents = (bfd_byte *) isymbuf;
3950
3951 if (foff < -0x100 || foff >= 0x100)
3952 {
3953 /* Replace the long jump with a jr. */
3954
3955 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3956 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3957 else
3958 irel->r_info =
3959 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3960
3961 irel->r_addend = addend;
3962 addend = 0;
3963
3964 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3965 /* If this needs to be changed because of future relaxing,
3966 it will be handled here like other internal IND12W
3967 relocs. */
3968 bfd_put_32 (abfd,
3969 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3970 contents + irel->r_offset);
3971 else
3972 /* We can't fully resolve this yet, because the external
3973 symbol value may be changed by future relaxing.
3974 We let the final link phase handle it. */
3975 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3976
3977 hi_irelfn->r_info =
3978 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3979 lo_irelfn->r_info =
3980 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3981 if (!v850_elf_relax_delete_bytes (abfd, sec,
3982 irel->r_offset + 4, toaddr, 6))
3983 goto error_return;
3984
3985 align_pad_size += 6;
3986 }
3987 else
3988 {
3989 /* Replace the long jump with a br. */
3990
3991 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3992 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
3993 else
3994 irel->r_info =
3995 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
3996
3997 irel->r_addend = addend;
3998 addend = 0;
3999
4000 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4001 /* If this needs to be changed because of future relaxing,
4002 it will be handled here like other internal IND12W
4003 relocs. */
4004 bfd_put_16 (abfd,
4005 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4006 contents + irel->r_offset);
4007 else
4008 /* We can't fully resolve this yet, because the external
4009 symbol value may be changed by future relaxing.
4010 We let the final link phase handle it. */
4011 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4012
4013 hi_irelfn->r_info =
4014 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4015 lo_irelfn->r_info =
4016 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4017 if (!v850_elf_relax_delete_bytes (abfd, sec,
4018 irel->r_offset + 2, toaddr, 8))
4019 goto error_return;
4020
4021 align_pad_size += 8;
4022 }
4023 }
4024 }
4025
4026 irelalign = NULL;
4027 for (irel = internal_relocs; irel < irelend; irel++)
4028 {
4029 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4030 && irel->r_offset == toaddr)
4031 {
4032 irel->r_offset -= align_pad_size;
4033
4034 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4035 irelalign = irel;
4036 }
4037 }
4038
4039 addr = toaddr;
4040 }
4041
4042 if (!irelalign)
4043 {
4044 #ifdef DEBUG_RELAX
4045 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4046 align_pad_size,
4047 sec->size,
4048 sec->size - align_pad_size);
4049 #endif
4050 sec->size -= align_pad_size;
4051 }
4052
4053 finish:
4054 if (internal_relocs != NULL
4055 && elf_section_data (sec)->relocs != internal_relocs)
4056 free (internal_relocs);
4057
4058 if (contents != NULL
4059 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4060 free (contents);
4061
4062 if (isymbuf != NULL
4063 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4064 free (isymbuf);
4065
4066 return result;
4067
4068 error_return:
4069 result = FALSE;
4070 goto finish;
4071 }
4072
4073 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4074 {
4075 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4076 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4077 + SHF_EXECINSTR) },
4078 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4079 + SHF_V850_GPREL) },
4080 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4081 + SHF_V850_R0REL) },
4082 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4083 + SHF_V850_GPREL) },
4084 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4085 + SHF_V850_GPREL) },
4086 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4087 + SHF_V850_GPREL) },
4088 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4089 + SHF_V850_EPREL) },
4090 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4091 + SHF_V850_R0REL) },
4092 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4093 + SHF_V850_EPREL) },
4094 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4095 + SHF_V850_R0REL) },
4096 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4097 + SHF_V850_R0REL) },
4098 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4099 + SHF_V850_R0REL) },
4100 { NULL, 0, 0, 0, 0 }
4101 };
4102 \f
4103 #define TARGET_LITTLE_SYM v850_elf32_vec
4104 #define TARGET_LITTLE_NAME "elf32-v850"
4105 #define ELF_ARCH bfd_arch_v850
4106 #define ELF_MACHINE_CODE EM_V850
4107 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4108 #define ELF_MAXPAGESIZE 0x1000
4109
4110 #define elf_info_to_howto v850_elf_info_to_howto_rela
4111 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4112
4113 #define elf_backend_check_relocs v850_elf_check_relocs
4114 #define elf_backend_relocate_section v850_elf_relocate_section
4115 #define elf_backend_object_p v850_elf_object_p
4116 #define elf_backend_final_write_processing v850_elf_final_write_processing
4117 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4118 #define elf_backend_symbol_processing v850_elf_symbol_processing
4119 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4120 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4121 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4122 #define elf_backend_fake_sections v850_elf_fake_sections
4123 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4124 #define elf_backend_special_sections v850_elf_special_sections
4125
4126 #define elf_backend_can_gc_sections 1
4127 #define elf_backend_rela_normal 1
4128
4129 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4130 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4131
4132 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4133 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4134 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4135 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4136 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4137 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4138
4139 #define elf_symbol_leading_char '_'
4140
4141 #undef elf32_bed
4142 #define elf32_bed elf32_v850_bed
4143
4144 #include "elf32-target.h"
4145
4146 /* Map BFD reloc types to V800 ELF reloc types. */
4147
4148 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4149 {
4150 { BFD_RELOC_NONE, R_V810_NONE },
4151 { BFD_RELOC_8, R_V810_BYTE },
4152 { BFD_RELOC_16, R_V810_HWORD },
4153 { BFD_RELOC_32, R_V810_WORD },
4154 { BFD_RELOC_LO16, R_V810_WLO },
4155 { BFD_RELOC_HI16, R_V810_WHI },
4156 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4157 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4158 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4159 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4160 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4161 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4162 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4163 { BFD_RELOC_V850_23, R_V850_WLO23 },
4164 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4165 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4166 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4167 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4168 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4169 };
4170
4171 /* Map a bfd relocation into the appropriate howto structure. */
4172
4173 static reloc_howto_type *
4174 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4175 {
4176 unsigned int i;
4177
4178 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4179
4180 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4181 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4182 {
4183 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4184 unsigned int idx = elf_reloc_val - R_V810_NONE;
4185
4186 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4187
4188 return v800_elf_howto_table + idx;
4189 }
4190
4191 #ifdef DEBUG
4192 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4193 #endif
4194 return NULL;
4195 }
4196
4197 static reloc_howto_type *
4198 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4199 {
4200 unsigned int i;
4201
4202 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4203
4204 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4205 if (v800_elf_howto_table[i].name != NULL
4206 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4207 return v800_elf_howto_table + i;
4208
4209 return NULL;
4210 }
4211
4212
4213 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4214
4215 static void
4216 v800_elf_info_to_howto (bfd * abfd,
4217 arelent * cache_ptr,
4218 Elf_Internal_Rela * dst)
4219 {
4220 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4221
4222 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4223
4224 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
4225
4226 if (r_type == R_V800_NONE)
4227 r_type = R_V810_NONE;
4228
4229 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
4230 r_type -= R_V810_NONE;
4231 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
4232
4233 cache_ptr->howto = v800_elf_howto_table + r_type;
4234 }
4235 \f
4236 #undef TARGET_LITTLE_SYM
4237 #define TARGET_LITTLE_SYM v800_elf32_vec
4238 #undef TARGET_LITTLE_NAME
4239 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4240 #undef ELF_ARCH
4241 #define ELF_ARCH bfd_arch_v850_rh850
4242 #undef ELF_MACHINE_CODE
4243 #define ELF_MACHINE_CODE EM_V800
4244 #undef ELF_MACHINE_ALT1
4245
4246 #undef elf32_bed
4247 #define elf32_bed elf32_v850_rh850_bed
4248
4249 #undef elf_info_to_howto
4250 #define elf_info_to_howto v800_elf_info_to_howto
4251 #undef elf_info_to_howto_rel
4252 #define elf_info_to_howto_rel NULL
4253 #undef bfd_elf32_bfd_reloc_type_lookup
4254 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4255 #undef bfd_elf32_bfd_reloc_name_lookup
4256 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4257
4258 #include "elf32-target.h"
GDB Binutils - Deliverables
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