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Rename non_ir_ref to non_ir_ref_regular
[deliverable/binutils-gdb.git] / bfd / elf32-v850.c
1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2017 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
23 dependencies. As is the gas & simulator code for the v850. */
24
25 #include "sysdep.h"
26 #include "bfd.h"
27 #include "bfdlink.h"
28 #include "libbfd.h"
29 #include "elf-bfd.h"
30 #include "elf/v850.h"
31 #include "libiberty.h"
32
33 /* Sign-extend a 17-bit number. */
34 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
35
36 /* Sign-extend a 22-bit number. */
37 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
38
39 static reloc_howto_type v850_elf_howto_table[];
40
41 /* Look through the relocs for a section during the first phase, and
42 allocate space in the global offset table or procedure linkage
43 table. */
44
45 static bfd_boolean
46 v850_elf_check_relocs (bfd *abfd,
47 struct bfd_link_info *info,
48 asection *sec,
49 const Elf_Internal_Rela *relocs)
50 {
51 bfd_boolean ret = TRUE;
52 Elf_Internal_Shdr *symtab_hdr;
53 struct elf_link_hash_entry **sym_hashes;
54 const Elf_Internal_Rela *rel;
55 const Elf_Internal_Rela *rel_end;
56 unsigned int r_type;
57 int other = 0;
58 const char *common = NULL;
59
60 if (bfd_link_relocatable (info))
61 return TRUE;
62
63 #ifdef DEBUG
64 _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B",
65 sec, abfd);
66 #endif
67
68 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
69 sym_hashes = elf_sym_hashes (abfd);
70
71 rel_end = relocs + sec->reloc_count;
72 for (rel = relocs; rel < rel_end; rel++)
73 {
74 unsigned long r_symndx;
75 struct elf_link_hash_entry *h;
76
77 r_symndx = ELF32_R_SYM (rel->r_info);
78 if (r_symndx < symtab_hdr->sh_info)
79 h = NULL;
80 else
81 {
82 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
83 while (h->root.type == bfd_link_hash_indirect
84 || h->root.type == bfd_link_hash_warning)
85 h = (struct elf_link_hash_entry *) h->root.u.i.link;
86
87 /* PR15323, ref flags aren't set for references in the same
88 object. */
89 h->root.non_ir_ref_regular = 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 /* xgettext:c-format */
1902 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1903 r_type = 0;
1904 }
1905 cache_ptr->howto = &v850_elf_howto_table[r_type];
1906 }
1907
1908 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1909
1910 static void
1911 v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
1912 arelent * cache_ptr,
1913 Elf_Internal_Rela *dst)
1914 {
1915 unsigned int r_type;
1916
1917 r_type = ELF32_R_TYPE (dst->r_info);
1918 if (r_type >= (unsigned int) R_V850_max)
1919 {
1920 /* xgettext:c-format */
1921 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1922 r_type = 0;
1923 }
1924 cache_ptr->howto = &v850_elf_howto_table[r_type];
1925 }
1926 \f
1927 static bfd_boolean
1928 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1929 {
1930 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1931 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1932 }
1933
1934 static bfd_boolean
1935 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1936 {
1937 return v850_elf_is_local_label_name (abfd, sym->name);
1938 }
1939 \f
1940 /* We overload some of the bfd_reloc error codes for own purposes. */
1941 #define bfd_reloc_gp_not_found bfd_reloc_other
1942 #define bfd_reloc_ep_not_found bfd_reloc_continue
1943 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1944
1945 /* Perform a relocation as part of a final link. */
1946
1947 static bfd_reloc_status_type
1948 v850_elf_final_link_relocate (reloc_howto_type *howto,
1949 bfd *input_bfd,
1950 bfd *output_bfd ATTRIBUTE_UNUSED,
1951 asection *input_section,
1952 bfd_byte *contents,
1953 bfd_vma offset,
1954 bfd_vma value,
1955 bfd_vma addend,
1956 struct bfd_link_info *info,
1957 asection *sym_sec,
1958 int is_local ATTRIBUTE_UNUSED)
1959 {
1960 unsigned int r_type = howto->type;
1961 bfd_byte *hit_data = contents + offset;
1962
1963 /* Adjust the value according to the relocation. */
1964 switch (r_type)
1965 {
1966 case R_V850_PC9:
1967 case R_V850_9_PCREL:
1968 value -= (input_section->output_section->vma
1969 + input_section->output_offset);
1970 value -= offset;
1971 break;
1972
1973 case R_V850_PC16U:
1974 case R_V850_16_PCREL:
1975 value -= (input_section->output_section->vma
1976 + input_section->output_offset
1977 + offset);
1978
1979 /* If the sign extension will corrupt the value then we have overflowed. */
1980 if ((value & 0xffff0000) != 0xffff0000)
1981 return bfd_reloc_overflow;
1982
1983 break;
1984
1985 case R_V850_PC17:
1986 case R_V850_17_PCREL:
1987 value -= (input_section->output_section->vma
1988 + input_section->output_offset
1989 + offset);
1990
1991 /* If the sign extension will corrupt the value then we have overflowed. */
1992 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1993 return bfd_reloc_overflow;
1994
1995 value = SEXT17 (value);
1996 break;
1997
1998 case R_V850_PCR22:
1999 case R_V850_22_PCREL:
2000 value -= (input_section->output_section->vma
2001 + input_section->output_offset
2002 + offset);
2003
2004 /* If the sign extension will corrupt the value then we have overflowed. */
2005 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2006 return bfd_reloc_overflow;
2007
2008 /* Only the bottom 22 bits of the PC are valid. */
2009 value = SEXT22 (value);
2010 break;
2011
2012 case R_V850_PC32:
2013 case R_V850_32_PCREL:
2014 value -= (input_section->output_section->vma
2015 + input_section->output_offset
2016 + offset);
2017 break;
2018
2019 case R_V850_32_ABS:
2020 case R_V850_23:
2021 case R_V850_HI16_S:
2022 case R_V850_HI16:
2023 case R_V850_LO16:
2024 case R_V850_LO16_S1:
2025 case R_V850_LO16_SPLIT_OFFSET:
2026 case R_V850_16:
2027 case R_V850_ABS32:
2028 case R_V850_8:
2029 case R_V810_BYTE:
2030 case R_V810_HWORD:
2031 case R_V810_WORD:
2032 case R_V810_WLO:
2033 case R_V810_WHI:
2034 case R_V810_WHI1:
2035 case R_V810_WLO_1:
2036 case R_V850_WLO23:
2037 case R_V850_BLO:
2038 break;
2039
2040 case R_V850_ZDA_15_16_OFFSET:
2041 case R_V850_ZDA_16_16_OFFSET:
2042 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2043 if (sym_sec == NULL)
2044 return bfd_reloc_undefined;
2045
2046 value -= sym_sec->output_section->vma;
2047 break;
2048
2049 case R_V850_SDA_15_16_OFFSET:
2050 case R_V850_SDA_16_16_OFFSET:
2051 case R_V850_SDA_16_16_SPLIT_OFFSET:
2052 case R_V810_GPWLO_1:
2053 {
2054 unsigned long gp;
2055 struct bfd_link_hash_entry * h;
2056
2057 if (sym_sec == NULL)
2058 return bfd_reloc_undefined;
2059
2060 /* Get the value of __gp. */
2061 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2062 if (h == NULL
2063 || h->type != bfd_link_hash_defined)
2064 return bfd_reloc_gp_not_found;
2065
2066 gp = (h->u.def.value
2067 + h->u.def.section->output_section->vma
2068 + h->u.def.section->output_offset);
2069
2070 value -= sym_sec->output_section->vma;
2071 value -= (gp - sym_sec->output_section->vma);
2072 }
2073 break;
2074
2075 case R_V850_TDA_4_4_OFFSET:
2076 case R_V850_TDA_4_5_OFFSET:
2077 case R_V850_TDA_7_7_OFFSET:
2078 case R_V850_TDA_7_8_OFFSET:
2079 case R_V850_TDA_6_8_OFFSET:
2080 case R_V850_TDA_16_16_OFFSET:
2081 {
2082 unsigned long ep;
2083 struct bfd_link_hash_entry * h;
2084
2085 /* Get the value of __ep. */
2086 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2087 if (h == NULL
2088 || h->type != bfd_link_hash_defined)
2089 return bfd_reloc_ep_not_found;
2090
2091 ep = (h->u.def.value
2092 + h->u.def.section->output_section->vma
2093 + h->u.def.section->output_offset);
2094
2095 value -= ep;
2096 }
2097 break;
2098
2099 case R_V850_CALLT_6_7_OFFSET:
2100 {
2101 unsigned long ctbp;
2102 struct bfd_link_hash_entry * h;
2103
2104 /* Get the value of __ctbp. */
2105 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2106 if (h == NULL
2107 || h->type != bfd_link_hash_defined)
2108 return bfd_reloc_ctbp_not_found;
2109
2110 ctbp = (h->u.def.value
2111 + h->u.def.section->output_section->vma
2112 + h->u.def.section->output_offset);
2113 value -= ctbp;
2114 }
2115 break;
2116
2117 case R_V850_CALLT_15_16_OFFSET:
2118 case R_V850_CALLT_16_16_OFFSET:
2119 {
2120 unsigned long ctbp;
2121 struct bfd_link_hash_entry * h;
2122
2123 if (sym_sec == NULL)
2124 return bfd_reloc_undefined;
2125
2126 /* Get the value of __ctbp. */
2127 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2128 if (h == NULL
2129 || h->type != bfd_link_hash_defined)
2130 return bfd_reloc_ctbp_not_found;
2131
2132 ctbp = (h->u.def.value
2133 + h->u.def.section->output_section->vma
2134 + h->u.def.section->output_offset);
2135
2136 value -= sym_sec->output_section->vma;
2137 value -= (ctbp - sym_sec->output_section->vma);
2138 }
2139 break;
2140
2141 case R_V850_NONE:
2142 case R_V810_NONE:
2143 case R_V850_GNU_VTINHERIT:
2144 case R_V850_GNU_VTENTRY:
2145 case R_V850_LONGCALL:
2146 case R_V850_LONGJUMP:
2147 case R_V850_ALIGN:
2148 return bfd_reloc_ok;
2149
2150 default:
2151 #ifdef DEBUG
2152 fprintf (stderr, "%B: reloc number %d not recognised\n", input_bfd, r_type);
2153 #endif
2154 return bfd_reloc_notsupported;
2155 }
2156
2157 /* Perform the relocation. */
2158 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2159 }
2160 \f
2161 /* Relocate an V850 ELF section. */
2162
2163 static bfd_boolean
2164 v850_elf_relocate_section (bfd *output_bfd,
2165 struct bfd_link_info *info,
2166 bfd *input_bfd,
2167 asection *input_section,
2168 bfd_byte *contents,
2169 Elf_Internal_Rela *relocs,
2170 Elf_Internal_Sym *local_syms,
2171 asection **local_sections)
2172 {
2173 Elf_Internal_Shdr *symtab_hdr;
2174 struct elf_link_hash_entry **sym_hashes;
2175 Elf_Internal_Rela *rel;
2176 Elf_Internal_Rela *relend;
2177
2178 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2179 sym_hashes = elf_sym_hashes (input_bfd);
2180
2181 /* Reset the list of remembered HI16S relocs to empty. */
2182 free_hi16s = previous_hi16s;
2183 previous_hi16s = NULL;
2184 hi16s_counter = 0;
2185
2186 rel = relocs;
2187 relend = relocs + input_section->reloc_count;
2188 for (; rel < relend; rel++)
2189 {
2190 unsigned int r_type;
2191 reloc_howto_type *howto;
2192 unsigned long r_symndx;
2193 Elf_Internal_Sym *sym;
2194 asection *sec;
2195 struct elf_link_hash_entry *h;
2196 bfd_vma relocation;
2197 bfd_reloc_status_type r;
2198
2199 r_symndx = ELF32_R_SYM (rel->r_info);
2200 r_type = ELF32_R_TYPE (rel->r_info);
2201
2202 if (r_type == R_V850_GNU_VTENTRY
2203 || r_type == R_V850_GNU_VTINHERIT)
2204 continue;
2205
2206 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2207 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2208 else
2209 howto = v850_elf_howto_table + r_type;
2210
2211 BFD_ASSERT (r_type == howto->type);
2212
2213 h = NULL;
2214 sym = NULL;
2215 sec = NULL;
2216 if (r_symndx < symtab_hdr->sh_info)
2217 {
2218 sym = local_syms + r_symndx;
2219 sec = local_sections[r_symndx];
2220 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2221 }
2222 else
2223 {
2224 bfd_boolean unresolved_reloc, warned, ignored;
2225
2226 /* Note - this check is delayed until now as it is possible and
2227 valid to have a file without any symbols but with relocs that
2228 can be processed. */
2229 if (sym_hashes == NULL)
2230 {
2231 info->callbacks->warning
2232 (info, "no hash table available",
2233 NULL, input_bfd, input_section, (bfd_vma) 0);
2234
2235 return FALSE;
2236 }
2237
2238 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2239 r_symndx, symtab_hdr, sym_hashes,
2240 h, sec, relocation,
2241 unresolved_reloc, warned, ignored);
2242 }
2243
2244 if (sec != NULL && discarded_section (sec))
2245 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2246 rel, 1, relend, howto, 0, contents);
2247
2248 if (bfd_link_relocatable (info))
2249 continue;
2250
2251 /* FIXME: We should use the addend, but the COFF relocations don't. */
2252 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2253 input_section,
2254 contents, rel->r_offset,
2255 relocation, rel->r_addend,
2256 info, sec, h == NULL);
2257
2258 if (r != bfd_reloc_ok)
2259 {
2260 const char * name;
2261 const char * msg = NULL;
2262
2263 if (h != NULL)
2264 name = h->root.root.string;
2265 else
2266 {
2267 name = (bfd_elf_string_from_elf_section
2268 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2269 if (name == NULL || *name == '\0')
2270 name = bfd_section_name (input_bfd, sec);
2271 }
2272
2273 switch ((int) r)
2274 {
2275 case bfd_reloc_overflow:
2276 (*info->callbacks->reloc_overflow)
2277 (info, (h ? &h->root : NULL), name, howto->name,
2278 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2279 break;
2280
2281 case bfd_reloc_undefined:
2282 (*info->callbacks->undefined_symbol)
2283 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2284 break;
2285
2286 case bfd_reloc_outofrange:
2287 msg = _("internal error: out of range error");
2288 goto common_error;
2289
2290 case bfd_reloc_notsupported:
2291 msg = _("internal error: unsupported relocation error");
2292 goto common_error;
2293
2294 case bfd_reloc_dangerous:
2295 msg = _("internal error: dangerous relocation");
2296 goto common_error;
2297
2298 case bfd_reloc_gp_not_found:
2299 msg = _("could not locate special linker symbol __gp");
2300 goto common_error;
2301
2302 case bfd_reloc_ep_not_found:
2303 msg = _("could not locate special linker symbol __ep");
2304 goto common_error;
2305
2306 case bfd_reloc_ctbp_not_found:
2307 msg = _("could not locate special linker symbol __ctbp");
2308 goto common_error;
2309
2310 default:
2311 msg = _("internal error: unknown error");
2312 /* fall through */
2313
2314 common_error:
2315 (*info->callbacks->warning) (info, msg, name, input_bfd,
2316 input_section, rel->r_offset);
2317 break;
2318 }
2319 }
2320 }
2321
2322 return TRUE;
2323 }
2324
2325 static asection *
2326 v850_elf_gc_mark_hook (asection *sec,
2327 struct bfd_link_info *info,
2328 Elf_Internal_Rela *rel,
2329 struct elf_link_hash_entry *h,
2330 Elf_Internal_Sym *sym)
2331 {
2332 if (h != NULL)
2333 switch (ELF32_R_TYPE (rel->r_info))
2334 {
2335 case R_V850_GNU_VTINHERIT:
2336 case R_V850_GNU_VTENTRY:
2337 return NULL;
2338 }
2339
2340 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2341 }
2342
2343 static void
2344 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2345 {
2346 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2347
2348 bfd_put_32 (abfd, 4, data + 0);
2349 bfd_put_32 (abfd, 4, data + 4);
2350 bfd_put_32 (abfd, note, data + 8);
2351 memcpy (data + 12, V850_NOTE_NAME, 4);
2352 bfd_put_32 (abfd, val, data + 16);
2353 }
2354
2355 /* Create the note section if not already present. This is done early so
2356 that the linker maps the sections to the right place in the output. */
2357
2358 static asection *
2359 v850_elf_make_note_section (bfd * abfd)
2360 {
2361 asection *s;
2362 bfd_byte *data;
2363 flagword flags;
2364 enum v850_notes id;
2365
2366 /* Make the note section. */
2367 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2368
2369 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2370 if (s == NULL)
2371 return NULL;
2372
2373 if (!bfd_set_section_alignment (abfd, s, 2))
2374 return NULL;
2375
2376 /* Allocate space for all known notes. */
2377 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2378 return NULL;
2379
2380 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2381 if (data == NULL)
2382 return NULL;
2383
2384 s->contents = data;
2385
2386 /* Provide default (= uninitilaised) values for all of the notes. */
2387 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2388 v850_set_note (abfd, s, id, 0);
2389
2390 return s;
2391 }
2392
2393 /* Create the note section if not already present. This is done early so
2394 that the linker maps the sections to the right place in the output. */
2395
2396 bfd_boolean
2397 v850_elf_create_sections (struct bfd_link_info * info)
2398 {
2399 bfd * ibfd;
2400
2401 /* If we already have a note section, do not make another. */
2402 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2403 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2404 return TRUE;
2405
2406 return v850_elf_make_note_section (info->input_bfds) != NULL;
2407 }
2408
2409 bfd_boolean
2410 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2411 {
2412 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2413
2414 if (val > 2)
2415 /* At the moment, no known note has a value over 2. */
2416 return FALSE;
2417
2418 if (notes == NULL)
2419 notes = v850_elf_make_note_section (abfd);
2420 if (notes == NULL)
2421 return FALSE;
2422
2423 v850_set_note (abfd, notes, note, val);
2424 return TRUE;
2425 }
2426
2427 /* Copy a v850 note section from one object module to another. */
2428
2429 static void
2430 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2431 {
2432 asection * onotes;
2433 asection * inotes;
2434
2435 /* If the output bfd does not have a note section, then
2436 skip the merge. The normal input to output section
2437 copying will take care of everythng for us. */
2438 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2439 return;
2440
2441 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2442 return;
2443
2444 if (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes))
2445 {
2446 bfd_byte * icont;
2447 bfd_byte * ocont;
2448
2449 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2450 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2451
2452 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2453 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2454
2455 /* Copy/overwrite notes from the input to the output. */
2456 memcpy (ocont, icont, bfd_section_size (obfd, onotes));
2457 }
2458 }
2459
2460 /* Copy backend specific data from one object module to another. */
2461
2462 static bfd_boolean
2463 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2464 {
2465 v850_elf_copy_notes (ibfd, obfd);
2466 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2467 }
2468 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2469
2470 static bfd_boolean
2471 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2472 {
2473 asection * onotes;
2474 asection * inotes;
2475 bfd_boolean result = TRUE;
2476
2477 /* If the output bfd does not have a note section, then
2478 skip the merge. The normal input to output section
2479 copying will take care of everythng for us. */
2480 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2481 return TRUE;
2482
2483 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2484 {
2485 enum v850_notes id;
2486 bfd_byte * icont;
2487 bfd_byte * ocont;
2488
2489 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2490
2491 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2492 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2493
2494 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2495 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2496
2497 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2498 {
2499 unsigned int ival;
2500 unsigned int oval;
2501 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2502 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2503
2504 ival = bfd_get_32 (ibfd, idata);
2505 oval = bfd_get_32 (obfd, odata);
2506
2507 if (ival == 0 || ival == oval)
2508 continue;
2509
2510 if (oval == 0)
2511 {
2512 bfd_put_32 (obfd, ival, odata);
2513 v850_set_note (obfd, onotes, id, ival);
2514 continue;
2515 }
2516
2517 /* We have a mismatch. The ABI defines how to handle
2518 this siutation on a per note type basis. */
2519 switch (id)
2520 {
2521 case V850_NOTE_ALIGNMENT:
2522 if (oval == EF_RH850_DATA_ALIGN4)
2523 {
2524 _bfd_error_handler
2525 /* xgettext:c-format */
2526 (_("error: %B needs 8-byte aligment but %B is set for 4-byte alignment"),
2527 ibfd, obfd);
2528 result = FALSE;
2529 }
2530 else
2531 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2532 Leave the obfd alignment as it is. */
2533 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2534
2535 break;
2536
2537 case V850_NOTE_DATA_SIZE:
2538 if (oval == EF_RH850_DOUBLE32)
2539 {
2540 _bfd_error_handler
2541 /* xgettext:c-format */
2542 (_("error: %B uses 64-bit doubles but "
2543 "%B uses 32-bit doubles"), ibfd, obfd);
2544 result = FALSE;
2545 }
2546 else
2547 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2548 This is acceptable. Honest, that is what the ABI says. */
2549 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2550 break;
2551
2552 case V850_NOTE_FPU_INFO:
2553 if (oval == EF_RH850_FPU20)
2554 {
2555 _bfd_error_handler
2556 /* xgettext:c-format */
2557 (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"),
2558 ibfd, obfd);
2559 result = FALSE;
2560 }
2561 else
2562 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2563 BFD_ASSERT (oval == EF_RH850_FPU30);
2564
2565 break;
2566
2567 default:
2568 /* None of the other conflicts matter.
2569 Stick with the current output values. */
2570 break;
2571 }
2572 }
2573
2574 /* FIXME: We should also check for conflicts between the notes
2575 and the EF flags in the ELF header. */
2576 }
2577
2578 return result;
2579 }
2580
2581 static void
2582 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2583 {
2584 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2585
2586 switch (id)
2587 {
2588 case V850_NOTE_ALIGNMENT:
2589 fprintf (file, _(" alignment of 8-byte entities: "));
2590 switch (value)
2591 {
2592 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2593 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2594 case 0: fprintf (file, _("not set")); break;
2595 default: fprintf (file, _("unknown: %x"), value); break;
2596 }
2597 fputc ('\n', file);
2598 break;
2599
2600 case V850_NOTE_DATA_SIZE:
2601 fprintf (file, _(" size of doubles: "));
2602 switch (value)
2603 {
2604 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2605 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2606 case 0: fprintf (file, _("not set")); break;
2607 default: fprintf (file, _("unknown: %x"), value); break;
2608 }
2609 fputc ('\n', file);
2610 break;
2611
2612 case V850_NOTE_FPU_INFO:
2613 fprintf (file, _(" FPU support required: "));
2614 switch (value)
2615 {
2616 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2617 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2618 case 0: fprintf (file, _("none")); break;
2619 default: fprintf (file, _("unknown: %x"), value); break;
2620 }
2621 fputc ('\n', file);
2622 break;
2623
2624 case V850_NOTE_SIMD_INFO:
2625 fprintf (file, _("SIMD use: "));
2626 switch (value)
2627 {
2628 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2629 case 0: fprintf (file, _("no")); break;
2630 default: fprintf (file, _("unknown: %x"), value); break;
2631 }
2632 fputc ('\n', file);
2633 break;
2634
2635 case V850_NOTE_CACHE_INFO:
2636 fprintf (file, _("CACHE use: "));
2637 switch (value)
2638 {
2639 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2640 case 0: fprintf (file, _("no")); break;
2641 default: fprintf (file, _("unknown: %x"), value); break;
2642 }
2643 fputc ('\n', file);
2644 break;
2645
2646 case V850_NOTE_MMU_INFO:
2647 fprintf (file, _("MMU use: "));
2648 switch (value)
2649 {
2650 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2651 case 0: fprintf (file, _("no")); break;
2652 default: fprintf (file, _("unknown: %x"), value); break;
2653 }
2654 fputc ('\n', file);
2655 break;
2656
2657 default:
2658 BFD_ASSERT (0);
2659 }
2660 }
2661
2662 static void
2663 v850_elf_print_notes (bfd * abfd, FILE * file)
2664 {
2665 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2666 enum v850_notes id;
2667
2668 if (notes == NULL || notes->contents == NULL)
2669 return;
2670
2671 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2672
2673 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2674 print_v850_note (abfd, file, notes->contents, id);
2675 }
2676
2677 /* Set the right machine number and architecture. */
2678
2679 static bfd_boolean
2680 v850_elf_object_p (bfd *abfd)
2681 {
2682 enum bfd_architecture arch;
2683 unsigned long mach;
2684
2685 switch (elf_elfheader (abfd)->e_machine)
2686 {
2687 case EM_V800:
2688 arch = bfd_arch_v850_rh850;
2689 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2690 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2691 break;
2692
2693 case EM_CYGNUS_V850:
2694 case EM_V850:
2695 arch = bfd_arch_v850;
2696 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2697 {
2698 default:
2699 case E_V850_ARCH: mach = bfd_mach_v850; break;
2700 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2701 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2702 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2703 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2704 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2705 }
2706 break;
2707
2708 default:
2709 return FALSE;
2710 }
2711
2712 return bfd_default_set_arch_mach (abfd, arch, mach);
2713 }
2714
2715 /* Store the machine number in the flags field. */
2716
2717 static void
2718 v850_elf_final_write_processing (bfd *abfd,
2719 bfd_boolean linker ATTRIBUTE_UNUSED)
2720 {
2721 unsigned long val;
2722
2723 switch (bfd_get_arch (abfd))
2724 {
2725 case bfd_arch_v850_rh850:
2726 val = EF_RH850_ABI;
2727 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2728 val |= EF_V800_850E3;
2729 elf_elfheader (abfd)->e_flags |= val;
2730 break;
2731
2732 case bfd_arch_v850:
2733 switch (bfd_get_mach (abfd))
2734 {
2735 default:
2736 case bfd_mach_v850: val = E_V850_ARCH; break;
2737 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2738 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2739 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2740 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2741 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2742 }
2743 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2744 elf_elfheader (abfd)->e_flags |= val;
2745 break;
2746 default:
2747 break;
2748 }
2749 }
2750
2751 /* Function to keep V850 specific file flags. */
2752
2753 static bfd_boolean
2754 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2755 {
2756 BFD_ASSERT (!elf_flags_init (abfd)
2757 || elf_elfheader (abfd)->e_flags == flags);
2758
2759 elf_elfheader (abfd)->e_flags = flags;
2760 elf_flags_init (abfd) = TRUE;
2761 return TRUE;
2762 }
2763
2764 /* Merge backend specific data from an object file
2765 to the output object file when linking. */
2766
2767 static bfd_boolean
2768 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2769 {
2770 bfd *obfd = info->output_bfd;
2771 flagword out_flags;
2772 flagword in_flags;
2773 bfd_boolean result = TRUE;
2774
2775 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2776 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2777 return TRUE;
2778
2779 result &= v850_elf_merge_notes (ibfd, obfd);
2780
2781 in_flags = elf_elfheader (ibfd)->e_flags;
2782 out_flags = elf_elfheader (obfd)->e_flags;
2783
2784 if (! elf_flags_init (obfd))
2785 {
2786 /* If the input is the default architecture then do not
2787 bother setting the flags for the output architecture,
2788 instead allow future merges to do this. If no future
2789 merges ever set these flags then they will retain their
2790 unitialised values, which surprise surprise, correspond
2791 to the default values. */
2792 if (bfd_get_arch_info (ibfd)->the_default)
2793 return TRUE;
2794
2795 elf_flags_init (obfd) = TRUE;
2796 elf_elfheader (obfd)->e_flags = in_flags;
2797
2798 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2799 && bfd_get_arch_info (obfd)->the_default)
2800 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2801
2802 return result;
2803 }
2804
2805 /* Check flag compatibility. */
2806 if (in_flags == out_flags)
2807 return result;
2808
2809 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2810 {
2811 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2812 {
2813 _bfd_error_handler
2814 (_("%B: Architecture mismatch with previous modules"), ibfd);
2815 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2816 }
2817
2818 return result;
2819 }
2820
2821 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2822 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2823 {
2824 /* Allow earlier architecture binaries to be linked with later binaries.
2825 Set the output binary to the later architecture, except for v850e1,
2826 which we set to v850e. */
2827 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2828 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2829 return result;
2830
2831 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2832 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2833 {
2834 elf_elfheader (obfd)->e_flags =
2835 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2836 return result;
2837 }
2838
2839 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2840 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2841 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2842 {
2843 elf_elfheader (obfd)->e_flags =
2844 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_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 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2852 {
2853 elf_elfheader (obfd)->e_flags =
2854 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2855 return result;
2856 }
2857
2858 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2859 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2860 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2861 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2862 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2863 {
2864 elf_elfheader (obfd)->e_flags =
2865 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2866 return result;
2867 }
2868
2869 _bfd_error_handler
2870 (_("%B: Architecture mismatch with previous modules"), ibfd);
2871 }
2872
2873 return result;
2874 }
2875
2876 /* Display the flags field. */
2877
2878 static bfd_boolean
2879 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2880 {
2881 FILE * file = (FILE *) ptr;
2882
2883 BFD_ASSERT (abfd != NULL && ptr != NULL);
2884
2885 _bfd_elf_print_private_bfd_data (abfd, ptr);
2886
2887 /* xgettext:c-format. */
2888 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2889
2890 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2891 {
2892 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2893 fprintf (file, _("unknown v850 architecture"));
2894 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2895 fprintf (file, _("v850 E3 architecture"));
2896 else
2897 fprintf (file, _("v850 architecture"));
2898 }
2899 else
2900 {
2901 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2902 {
2903 default:
2904 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2905 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2906 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2907 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2908 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2909 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2910 }
2911 }
2912
2913 fputc ('\n', file);
2914
2915 v850_elf_print_notes (abfd, file);
2916
2917 return TRUE;
2918 }
2919
2920 /* V850 ELF uses four common sections. One is the usual one, and the
2921 others are for (small) objects in one of the special data areas:
2922 small, tiny and zero. All the objects are kept together, and then
2923 referenced via the gp register, the ep register or the r0 register
2924 respectively, which yields smaller, faster assembler code. This
2925 approach is copied from elf32-mips.c. */
2926
2927 static asection v850_elf_scom_section;
2928 static asymbol v850_elf_scom_symbol;
2929 static asymbol * v850_elf_scom_symbol_ptr;
2930 static asection v850_elf_tcom_section;
2931 static asymbol v850_elf_tcom_symbol;
2932 static asymbol * v850_elf_tcom_symbol_ptr;
2933 static asection v850_elf_zcom_section;
2934 static asymbol v850_elf_zcom_symbol;
2935 static asymbol * v850_elf_zcom_symbol_ptr;
2936
2937 /* Given a BFD section, try to locate the
2938 corresponding ELF section index. */
2939
2940 static bfd_boolean
2941 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2942 asection *sec,
2943 int *retval)
2944 {
2945 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2946 *retval = SHN_V850_SCOMMON;
2947 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2948 *retval = SHN_V850_TCOMMON;
2949 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2950 *retval = SHN_V850_ZCOMMON;
2951 else
2952 return FALSE;
2953
2954 return TRUE;
2955 }
2956
2957 /* Handle the special V850 section numbers that a symbol may use. */
2958
2959 static void
2960 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2961 {
2962 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2963 unsigned int indx;
2964
2965 indx = elfsym->internal_elf_sym.st_shndx;
2966
2967 /* If the section index is an "ordinary" index, then it may
2968 refer to a v850 specific section created by the assembler.
2969 Check the section's type and change the index it matches.
2970
2971 FIXME: Should we alter the st_shndx field as well ? */
2972
2973 if (indx < elf_numsections (abfd))
2974 switch (elf_elfsections (abfd)[indx]->sh_type)
2975 {
2976 case SHT_V850_SCOMMON:
2977 indx = SHN_V850_SCOMMON;
2978 break;
2979
2980 case SHT_V850_TCOMMON:
2981 indx = SHN_V850_TCOMMON;
2982 break;
2983
2984 case SHT_V850_ZCOMMON:
2985 indx = SHN_V850_ZCOMMON;
2986 break;
2987
2988 default:
2989 break;
2990 }
2991
2992 switch (indx)
2993 {
2994 case SHN_V850_SCOMMON:
2995 if (v850_elf_scom_section.name == NULL)
2996 {
2997 /* Initialize the small common section. */
2998 v850_elf_scom_section.name = ".scommon";
2999 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
3000 v850_elf_scom_section.output_section = & v850_elf_scom_section;
3001 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
3002 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
3003 v850_elf_scom_symbol.name = ".scommon";
3004 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
3005 v850_elf_scom_symbol.section = & v850_elf_scom_section;
3006 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
3007 }
3008 asym->section = & v850_elf_scom_section;
3009 asym->value = elfsym->internal_elf_sym.st_size;
3010 break;
3011
3012 case SHN_V850_TCOMMON:
3013 if (v850_elf_tcom_section.name == NULL)
3014 {
3015 /* Initialize the tcommon section. */
3016 v850_elf_tcom_section.name = ".tcommon";
3017 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3018 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3019 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3020 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3021 v850_elf_tcom_symbol.name = ".tcommon";
3022 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3023 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3024 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3025 }
3026 asym->section = & v850_elf_tcom_section;
3027 asym->value = elfsym->internal_elf_sym.st_size;
3028 break;
3029
3030 case SHN_V850_ZCOMMON:
3031 if (v850_elf_zcom_section.name == NULL)
3032 {
3033 /* Initialize the zcommon section. */
3034 v850_elf_zcom_section.name = ".zcommon";
3035 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3036 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3037 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3038 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3039 v850_elf_zcom_symbol.name = ".zcommon";
3040 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3041 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3042 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3043 }
3044 asym->section = & v850_elf_zcom_section;
3045 asym->value = elfsym->internal_elf_sym.st_size;
3046 break;
3047 }
3048 }
3049
3050 /* Hook called by the linker routine which adds symbols from an object
3051 file. We must handle the special v850 section numbers here. */
3052
3053 static bfd_boolean
3054 v850_elf_add_symbol_hook (bfd *abfd,
3055 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3056 Elf_Internal_Sym *sym,
3057 const char **namep ATTRIBUTE_UNUSED,
3058 flagword *flagsp ATTRIBUTE_UNUSED,
3059 asection **secp,
3060 bfd_vma *valp)
3061 {
3062 unsigned int indx = sym->st_shndx;
3063
3064 /* If the section index is an "ordinary" index, then it may
3065 refer to a v850 specific section created by the assembler.
3066 Check the section's type and change the index it matches.
3067
3068 FIXME: Should we alter the st_shndx field as well ? */
3069
3070 if (indx < elf_numsections (abfd))
3071 switch (elf_elfsections (abfd)[indx]->sh_type)
3072 {
3073 case SHT_V850_SCOMMON:
3074 indx = SHN_V850_SCOMMON;
3075 break;
3076
3077 case SHT_V850_TCOMMON:
3078 indx = SHN_V850_TCOMMON;
3079 break;
3080
3081 case SHT_V850_ZCOMMON:
3082 indx = SHN_V850_ZCOMMON;
3083 break;
3084
3085 default:
3086 break;
3087 }
3088
3089 switch (indx)
3090 {
3091 case SHN_V850_SCOMMON:
3092 *secp = bfd_make_section_old_way (abfd, ".scommon");
3093 (*secp)->flags |= SEC_IS_COMMON;
3094 *valp = sym->st_size;
3095 break;
3096
3097 case SHN_V850_TCOMMON:
3098 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3099 (*secp)->flags |= SEC_IS_COMMON;
3100 *valp = sym->st_size;
3101 break;
3102
3103 case SHN_V850_ZCOMMON:
3104 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3105 (*secp)->flags |= SEC_IS_COMMON;
3106 *valp = sym->st_size;
3107 break;
3108 }
3109
3110 return TRUE;
3111 }
3112
3113 static int
3114 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3115 const char *name ATTRIBUTE_UNUSED,
3116 Elf_Internal_Sym *sym,
3117 asection *input_sec,
3118 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3119 {
3120 /* If we see a common symbol, which implies a relocatable link, then
3121 if a symbol was in a special common section in an input file, mark
3122 it as a special common in the output file. */
3123
3124 if (sym->st_shndx == SHN_COMMON)
3125 {
3126 if (strcmp (input_sec->name, ".scommon") == 0)
3127 sym->st_shndx = SHN_V850_SCOMMON;
3128 else if (strcmp (input_sec->name, ".tcommon") == 0)
3129 sym->st_shndx = SHN_V850_TCOMMON;
3130 else if (strcmp (input_sec->name, ".zcommon") == 0)
3131 sym->st_shndx = SHN_V850_ZCOMMON;
3132 }
3133
3134 /* The price we pay for using h->other unused bits as flags in the
3135 linker is cleaning up after ourselves. */
3136
3137 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3138 | V850_OTHER_ERROR);
3139
3140 return 1;
3141 }
3142
3143 static bfd_boolean
3144 v850_elf_section_from_shdr (bfd *abfd,
3145 Elf_Internal_Shdr *hdr,
3146 const char *name,
3147 int shindex)
3148 {
3149 /* There ought to be a place to keep ELF backend specific flags, but
3150 at the moment there isn't one. We just keep track of the
3151 sections by their name, instead. */
3152
3153 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3154 return FALSE;
3155
3156 switch (hdr->sh_type)
3157 {
3158 case SHT_V850_SCOMMON:
3159 case SHT_V850_TCOMMON:
3160 case SHT_V850_ZCOMMON:
3161 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3162 (bfd_get_section_flags (abfd,
3163 hdr->bfd_section)
3164 | SEC_IS_COMMON)))
3165 return FALSE;
3166 }
3167
3168 return TRUE;
3169 }
3170
3171 /* Set the correct type for a V850 ELF section. We do this
3172 by the section name, which is a hack, but ought to work. */
3173
3174 static bfd_boolean
3175 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3176 Elf_Internal_Shdr *hdr,
3177 asection *sec)
3178 {
3179 const char * name;
3180
3181 name = bfd_get_section_name (abfd, sec);
3182
3183 if (strcmp (name, ".scommon") == 0)
3184 hdr->sh_type = SHT_V850_SCOMMON;
3185 else if (strcmp (name, ".tcommon") == 0)
3186 hdr->sh_type = SHT_V850_TCOMMON;
3187 else if (strcmp (name, ".zcommon") == 0)
3188 hdr->sh_type = SHT_V850_ZCOMMON;
3189 /* Tweak the section type of .note.renesas. */
3190 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3191 {
3192 hdr->sh_type = SHT_RENESAS_INFO;
3193 hdr->sh_entsize = SIZEOF_V850_NOTE;
3194 }
3195
3196 return TRUE;
3197 }
3198
3199 /* Delete some bytes from a section while relaxing. */
3200
3201 static bfd_boolean
3202 v850_elf_relax_delete_bytes (bfd *abfd,
3203 asection *sec,
3204 bfd_vma addr,
3205 bfd_vma toaddr,
3206 int count)
3207 {
3208 Elf_Internal_Shdr *symtab_hdr;
3209 Elf32_External_Sym *extsyms;
3210 Elf32_External_Sym *esym;
3211 Elf32_External_Sym *esymend;
3212 int sym_index;
3213 unsigned int sec_shndx;
3214 bfd_byte *contents;
3215 Elf_Internal_Rela *irel;
3216 Elf_Internal_Rela *irelend;
3217 struct elf_link_hash_entry *sym_hash;
3218 Elf_External_Sym_Shndx *shndx;
3219
3220 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3221 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3222
3223 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3224
3225 contents = elf_section_data (sec)->this_hdr.contents;
3226
3227 /* The deletion must stop at the next ALIGN reloc for an alignment
3228 power larger than the number of bytes we are deleting. */
3229
3230 /* Actually delete the bytes. */
3231 #if (DEBUG_RELAX & 2)
3232 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3233 sec->name, addr, toaddr, count );
3234 #endif
3235 memmove (contents + addr, contents + addr + count,
3236 toaddr - addr - count);
3237 memset (contents + toaddr-count, 0, count);
3238
3239 /* Adjust all the relocs. */
3240 irel = elf_section_data (sec)->relocs;
3241 irelend = irel + sec->reloc_count;
3242 if (elf_symtab_shndx_list (abfd))
3243 {
3244 Elf_Internal_Shdr *shndx_hdr;
3245
3246 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3247 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3248 }
3249 else
3250 {
3251 shndx = NULL;
3252 }
3253
3254 for (; irel < irelend; irel++)
3255 {
3256 bfd_vma raddr, paddr, symval;
3257 Elf_Internal_Sym isym;
3258
3259 /* Get the new reloc address. */
3260 raddr = irel->r_offset;
3261 if ((raddr >= (addr + count) && raddr < toaddr))
3262 irel->r_offset -= count;
3263
3264 if (raddr >= addr && raddr < addr + count)
3265 {
3266 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3267 (int) R_V850_NONE);
3268 continue;
3269 }
3270
3271 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3272 continue;
3273
3274 bfd_elf32_swap_symbol_in (abfd,
3275 extsyms + ELF32_R_SYM (irel->r_info),
3276 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3277 & isym);
3278
3279 if (isym.st_shndx != sec_shndx)
3280 continue;
3281
3282 /* Get the value of the symbol referred to by the reloc. */
3283 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3284 {
3285 symval = isym.st_value;
3286 #if (DEBUG_RELAX & 2)
3287 {
3288 char * name = bfd_elf_string_from_elf_section
3289 (abfd, symtab_hdr->sh_link, isym.st_name);
3290 fprintf (stderr,
3291 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3292 sec->name, name, isym.st_name,
3293 sec->output_section->vma, sec->output_offset,
3294 isym.st_value, irel->r_addend);
3295 }
3296 #endif
3297 }
3298 else
3299 {
3300 unsigned long indx;
3301 struct elf_link_hash_entry * h;
3302
3303 /* An external symbol. */
3304 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3305
3306 h = elf_sym_hashes (abfd) [indx];
3307 BFD_ASSERT (h != NULL);
3308
3309 symval = h->root.u.def.value;
3310 #if (DEBUG_RELAX & 2)
3311 fprintf (stderr,
3312 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3313 sec->name, h->root.root.string, h->root.u.def.value,
3314 sec->output_section->vma, sec->output_offset, irel->r_addend);
3315 #endif
3316 }
3317
3318 paddr = symval + irel->r_addend;
3319
3320 if ( (symval >= addr + count && symval < toaddr)
3321 && (paddr < addr + count || paddr >= toaddr))
3322 irel->r_addend += count;
3323 else if ( (symval < addr + count || symval >= toaddr)
3324 && (paddr >= addr + count && paddr < toaddr))
3325 irel->r_addend -= count;
3326 }
3327
3328 /* Adjust the local symbols defined in this section. */
3329 esym = extsyms;
3330 esymend = esym + symtab_hdr->sh_info;
3331
3332 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3333 {
3334 Elf_Internal_Sym isym;
3335
3336 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3337
3338 if (isym.st_shndx == sec_shndx
3339 && isym.st_value >= addr + count
3340 && isym.st_value < toaddr)
3341 {
3342 isym.st_value -= count;
3343
3344 if (isym.st_value + isym.st_size >= toaddr)
3345 isym.st_size += count;
3346
3347 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3348 }
3349 else if (isym.st_shndx == sec_shndx
3350 && isym.st_value < addr + count)
3351 {
3352 if (isym.st_value+isym.st_size >= addr + count
3353 && isym.st_value+isym.st_size < toaddr)
3354 isym.st_size -= count;
3355
3356 if (isym.st_value >= addr
3357 && isym.st_value < addr + count)
3358 isym.st_value = addr;
3359
3360 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3361 }
3362 }
3363
3364 /* Now adjust the global symbols defined in this section. */
3365 esym = extsyms + symtab_hdr->sh_info;
3366 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3367
3368 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3369 {
3370 Elf_Internal_Sym isym;
3371
3372 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3373 sym_hash = elf_sym_hashes (abfd) [sym_index];
3374
3375 if (isym.st_shndx == sec_shndx
3376 && ((sym_hash)->root.type == bfd_link_hash_defined
3377 || (sym_hash)->root.type == bfd_link_hash_defweak)
3378 && (sym_hash)->root.u.def.section == sec
3379 && (sym_hash)->root.u.def.value >= addr + count
3380 && (sym_hash)->root.u.def.value < toaddr)
3381 {
3382 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3383 {
3384 isym.st_size += count;
3385 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3386 }
3387
3388 (sym_hash)->root.u.def.value -= count;
3389 }
3390 else if (isym.st_shndx == sec_shndx
3391 && ((sym_hash)->root.type == bfd_link_hash_defined
3392 || (sym_hash)->root.type == bfd_link_hash_defweak)
3393 && (sym_hash)->root.u.def.section == sec
3394 && (sym_hash)->root.u.def.value < addr + count)
3395 {
3396 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3397 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3398 isym.st_size -= count;
3399
3400 if ((sym_hash)->root.u.def.value >= addr
3401 && (sym_hash)->root.u.def.value < addr + count)
3402 (sym_hash)->root.u.def.value = addr;
3403
3404 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3405 }
3406
3407 if (shndx)
3408 ++ shndx;
3409 }
3410
3411 return TRUE;
3412 }
3413
3414 #define NOP_OPCODE (0x0000)
3415 #define MOVHI 0x0640 /* 4byte. */
3416 #define MOVHI_MASK 0x07e0
3417 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3418 #define MOVHI_R2(insn) ((insn) >> 11)
3419 #define MOVEA 0x0620 /* 2byte. */
3420 #define MOVEA_MASK 0x07e0
3421 #define MOVEA_R1(insn) ((insn) & 0x1f)
3422 #define MOVEA_R2(insn) ((insn) >> 11)
3423 #define JARL_4 0x00040780 /* 4byte. */
3424 #define JARL_4_MASK 0xFFFF07FF
3425 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3426 #define ADD_I 0x0240 /* 2byte. */
3427 #define ADD_I_MASK 0x07e0
3428 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3429 #define ADD_R2(insn) ((insn) >> 11)
3430 #define JMP_R 0x0060 /* 2byte. */
3431 #define JMP_R_MASK 0xFFE0
3432 #define JMP_R1(insn) ((insn) & 0x1f)
3433
3434 static bfd_boolean
3435 v850_elf_relax_section (bfd *abfd,
3436 asection *sec,
3437 struct bfd_link_info *link_info,
3438 bfd_boolean *again)
3439 {
3440 Elf_Internal_Shdr *symtab_hdr;
3441 Elf_Internal_Rela *internal_relocs;
3442 Elf_Internal_Rela *irel;
3443 Elf_Internal_Rela *irelend;
3444 Elf_Internal_Rela *irelalign = NULL;
3445 Elf_Internal_Sym *isymbuf = NULL;
3446 bfd_byte *contents = NULL;
3447 bfd_vma addr = 0;
3448 bfd_vma toaddr;
3449 int align_pad_size = 0;
3450 bfd_boolean result = TRUE;
3451
3452 *again = FALSE;
3453
3454 if (bfd_link_relocatable (link_info)
3455 || (sec->flags & SEC_RELOC) == 0
3456 || sec->reloc_count == 0)
3457 return TRUE;
3458
3459 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3460
3461 internal_relocs = (_bfd_elf_link_read_relocs
3462 (abfd, sec, NULL, NULL, link_info->keep_memory));
3463 if (internal_relocs == NULL)
3464 goto error_return;
3465
3466 irelend = internal_relocs + sec->reloc_count;
3467
3468 while (addr < sec->size)
3469 {
3470 toaddr = sec->size;
3471
3472 for (irel = internal_relocs; irel < irelend; irel ++)
3473 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3474 && irel->r_offset > addr
3475 && irel->r_offset < toaddr)
3476 toaddr = irel->r_offset;
3477
3478 #ifdef DEBUG_RELAX
3479 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3480 addr, toaddr, align_pad_size);
3481 #endif
3482 if (irelalign)
3483 {
3484 bfd_vma alignto;
3485 bfd_vma alignmoveto;
3486
3487 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3488 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3489
3490 if (alignmoveto < alignto)
3491 {
3492 bfd_vma i;
3493
3494 align_pad_size = alignto - alignmoveto;
3495 #ifdef DEBUG_RELAX
3496 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3497 alignmoveto, toaddr, align_pad_size);
3498 #endif
3499 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3500 toaddr, align_pad_size))
3501 goto error_return;
3502
3503 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3504 (i + 1) < toaddr; i += 2)
3505 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3506
3507 addr = alignmoveto;
3508 }
3509 else
3510 align_pad_size = 0;
3511 }
3512
3513 for (irel = internal_relocs; irel < irelend; irel++)
3514 {
3515 bfd_vma laddr;
3516 bfd_vma addend;
3517 bfd_vma symval;
3518 int insn[5];
3519 int no_match = -1;
3520 Elf_Internal_Rela *hi_irelfn;
3521 Elf_Internal_Rela *lo_irelfn;
3522 Elf_Internal_Rela *irelcall;
3523 bfd_signed_vma foff;
3524 unsigned int r_type;
3525
3526 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3527 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3528 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3529 continue;
3530
3531 #ifdef DEBUG_RELAX
3532 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3533 irel->r_info,
3534 irel->r_offset,
3535 irel->r_addend );
3536 #endif
3537
3538 /* Get the section contents. */
3539 if (contents == NULL)
3540 {
3541 if (elf_section_data (sec)->this_hdr.contents != NULL)
3542 contents = elf_section_data (sec)->this_hdr.contents;
3543 else
3544 {
3545 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3546 goto error_return;
3547 }
3548 }
3549
3550 /* Read this BFD's local symbols if we haven't done so already. */
3551 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3552 {
3553 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3554 if (isymbuf == NULL)
3555 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3556 symtab_hdr->sh_info, 0,
3557 NULL, NULL, NULL);
3558 if (isymbuf == NULL)
3559 goto error_return;
3560 }
3561
3562 laddr = irel->r_offset;
3563
3564 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3565 {
3566 /* Check code for -mlong-calls output. */
3567 if (laddr + 16 <= (bfd_vma) sec->size)
3568 {
3569 insn[0] = bfd_get_16 (abfd, contents + laddr);
3570 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3571 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3572 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3573 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3574
3575 if ((insn[0] & MOVHI_MASK) != MOVHI
3576 || MOVHI_R1 (insn[0]) != 0)
3577 no_match = 0;
3578
3579 if (no_match < 0
3580 && ((insn[1] & MOVEA_MASK) != MOVEA
3581 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3582 no_match = 1;
3583
3584 if (no_match < 0
3585 && (insn[2] & JARL_4_MASK) != JARL_4)
3586 no_match = 2;
3587
3588 if (no_match < 0
3589 && ((insn[3] & ADD_I_MASK) != ADD_I
3590 || ADD_I5 (insn[3]) != 4
3591 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3592 no_match = 3;
3593
3594 if (no_match < 0
3595 && ((insn[4] & JMP_R_MASK) != JMP_R
3596 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3597 no_match = 4;
3598 }
3599 else
3600 {
3601 _bfd_error_handler
3602 /* xgettext:c-format */
3603 (_("%B: 0x%lx: warning: R_V850_LONGCALL points to "
3604 "unrecognized insns"),
3605 abfd, (unsigned long) irel->r_offset);
3606 continue;
3607 }
3608
3609 if (no_match >= 0)
3610 {
3611 _bfd_error_handler
3612 /* xgettext:c-format */
3613 (_("%B: 0x%lx: warning: R_V850_LONGCALL points to "
3614 "unrecognized insn 0x%x"),
3615 abfd,
3616 (unsigned long) irel->r_offset + no_match,
3617 insn[no_match]);
3618 continue;
3619 }
3620
3621 /* Get the reloc for the address from which the register is
3622 being loaded. This reloc will tell us which function is
3623 actually being called. */
3624
3625 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3626 {
3627 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3628
3629 if (hi_irelfn->r_offset == laddr + 2
3630 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3631 break;
3632 }
3633
3634 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3635 {
3636 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3637
3638 if (lo_irelfn->r_offset == laddr + 6
3639 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3640 break;
3641 }
3642
3643 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3644 {
3645 r_type = ELF32_R_TYPE (irelcall->r_info);
3646
3647 if (irelcall->r_offset == laddr + 8
3648 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3649 break;
3650 }
3651
3652 if ( hi_irelfn == irelend
3653 || lo_irelfn == irelend
3654 || irelcall == irelend)
3655 {
3656 _bfd_error_handler
3657 /* xgettext:c-format */
3658 (_("%B: 0x%lx: warning: R_V850_LONGCALL points to "
3659 "unrecognized reloc"),
3660 abfd, (unsigned long) irel->r_offset);
3661
3662 continue;
3663 }
3664
3665 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3666 {
3667 Elf_Internal_Sym * isym;
3668
3669 /* A local symbol. */
3670 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3671
3672 symval = isym->st_value;
3673 }
3674 else
3675 {
3676 unsigned long indx;
3677 struct elf_link_hash_entry * h;
3678
3679 /* An external symbol. */
3680 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3681 h = elf_sym_hashes (abfd)[indx];
3682 BFD_ASSERT (h != NULL);
3683
3684 if ( h->root.type != bfd_link_hash_defined
3685 && h->root.type != bfd_link_hash_defweak)
3686 /* This appears to be a reference to an undefined
3687 symbol. Just ignore it--it will be caught by the
3688 regular reloc processing. */
3689 continue;
3690
3691 symval = h->root.u.def.value;
3692 }
3693
3694 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3695 {
3696 _bfd_error_handler
3697 /* xgettext:c-format */
3698 (_("%B: 0x%lx: warning: R_V850_LONGCALL points to "
3699 "unrecognized reloc 0x%lx"),
3700 abfd, (unsigned long) irel->r_offset,
3701 irelcall->r_offset);
3702 continue;
3703 }
3704
3705 /* Get the value of the symbol referred to by the reloc. */
3706 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3707 {
3708 Elf_Internal_Sym *isym;
3709 asection *sym_sec;
3710
3711 /* A local symbol. */
3712 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3713
3714 if (isym->st_shndx == SHN_UNDEF)
3715 sym_sec = bfd_und_section_ptr;
3716 else if (isym->st_shndx == SHN_ABS)
3717 sym_sec = bfd_abs_section_ptr;
3718 else if (isym->st_shndx == SHN_COMMON)
3719 sym_sec = bfd_com_section_ptr;
3720 else
3721 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3722 symval = (isym->st_value
3723 + sym_sec->output_section->vma
3724 + sym_sec->output_offset);
3725 }
3726 else
3727 {
3728 unsigned long indx;
3729 struct elf_link_hash_entry *h;
3730
3731 /* An external symbol. */
3732 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3733 h = elf_sym_hashes (abfd)[indx];
3734 BFD_ASSERT (h != NULL);
3735
3736 if ( h->root.type != bfd_link_hash_defined
3737 && h->root.type != bfd_link_hash_defweak)
3738 /* This appears to be a reference to an undefined
3739 symbol. Just ignore it--it will be caught by the
3740 regular reloc processing. */
3741 continue;
3742
3743 symval = (h->root.u.def.value
3744 + h->root.u.def.section->output_section->vma
3745 + h->root.u.def.section->output_offset);
3746 }
3747
3748 addend = irel->r_addend;
3749
3750 foff = (symval + addend
3751 - (irel->r_offset
3752 + sec->output_section->vma
3753 + sec->output_offset
3754 + 4));
3755 #ifdef DEBUG_RELAX
3756 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3757 irel->r_offset,
3758 (irel->r_offset
3759 + sec->output_section->vma
3760 + sec->output_offset),
3761 symval, addend, foff);
3762 #endif
3763
3764 if (foff < -0x100000 || foff >= 0x100000)
3765 /* After all that work, we can't shorten this function call. */
3766 continue;
3767
3768 /* For simplicity of coding, we are going to modify the section
3769 contents, the section relocs, and the BFD symbol table. We
3770 must tell the rest of the code not to free up this
3771 information. It would be possible to instead create a table
3772 of changes which have to be made, as is done in coff-mips.c;
3773 that would be more work, but would require less memory when
3774 the linker is run. */
3775 elf_section_data (sec)->relocs = internal_relocs;
3776 elf_section_data (sec)->this_hdr.contents = contents;
3777 symtab_hdr->contents = (bfd_byte *) isymbuf;
3778
3779 /* Replace the long call with a jarl. */
3780 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3781 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3782 else
3783 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3784
3785 addend = 0;
3786
3787 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3788 /* If this needs to be changed because of future relaxing,
3789 it will be handled here like other internal IND12W
3790 relocs. */
3791 bfd_put_32 (abfd,
3792 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3793 contents + irel->r_offset);
3794 else
3795 /* We can't fully resolve this yet, because the external
3796 symbol value may be changed by future relaxing.
3797 We let the final link phase handle it. */
3798 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3799 contents + irel->r_offset);
3800
3801 hi_irelfn->r_info =
3802 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3803 lo_irelfn->r_info =
3804 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3805 irelcall->r_info =
3806 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3807
3808 if (! v850_elf_relax_delete_bytes (abfd, sec,
3809 irel->r_offset + 4, toaddr, 12))
3810 goto error_return;
3811
3812 align_pad_size += 12;
3813 }
3814 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3815 {
3816 /* Check code for -mlong-jumps output. */
3817 if (laddr + 10 <= (bfd_vma) sec->size)
3818 {
3819 insn[0] = bfd_get_16 (abfd, contents + laddr);
3820 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3821 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3822
3823 if ((insn[0] & MOVHI_MASK) != MOVHI
3824 || MOVHI_R1 (insn[0]) != 0)
3825 no_match = 0;
3826
3827 if (no_match < 0
3828 && ((insn[1] & MOVEA_MASK) != MOVEA
3829 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3830 no_match = 1;
3831
3832 if (no_match < 0
3833 && ((insn[2] & JMP_R_MASK) != JMP_R
3834 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3835 no_match = 4;
3836 }
3837 else
3838 {
3839 _bfd_error_handler
3840 /* xgettext:c-format */
3841 (_("%B: 0x%lx: warning: R_V850_LONGJUMP points to "
3842 "unrecognized insns"),
3843 abfd, (unsigned long) irel->r_offset);
3844 continue;
3845 }
3846
3847 if (no_match >= 0)
3848 {
3849 _bfd_error_handler
3850 /* xgettext:c-format */
3851 (_("%B: 0x%lx: warning: R_V850_LONGJUMP points to "
3852 "unrecognized insn 0x%x"),
3853 abfd,
3854 (unsigned long) irel->r_offset + no_match,
3855 insn[no_match]);
3856 continue;
3857 }
3858
3859 /* Get the reloc for the address from which the register is
3860 being loaded. This reloc will tell us which function is
3861 actually being called. */
3862 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3863 {
3864 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3865
3866 if (hi_irelfn->r_offset == laddr + 2
3867 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3868 break;
3869 }
3870
3871 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3872 {
3873 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3874
3875 if (lo_irelfn->r_offset == laddr + 6
3876 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3877 break;
3878 }
3879
3880 if ( hi_irelfn == irelend
3881 || lo_irelfn == irelend)
3882 {
3883 _bfd_error_handler
3884 /* xgettext:c-format */
3885 (_("%B: 0x%lx: warning: R_V850_LONGJUMP points to "
3886 "unrecognized reloc"),
3887 abfd, (unsigned long) irel->r_offset);
3888 continue;
3889 }
3890
3891 /* Get the value of the symbol referred to by the reloc. */
3892 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3893 {
3894 Elf_Internal_Sym * isym;
3895 asection * sym_sec;
3896
3897 /* A local symbol. */
3898 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3899
3900 if (isym->st_shndx == SHN_UNDEF)
3901 sym_sec = bfd_und_section_ptr;
3902 else if (isym->st_shndx == SHN_ABS)
3903 sym_sec = bfd_abs_section_ptr;
3904 else if (isym->st_shndx == SHN_COMMON)
3905 sym_sec = bfd_com_section_ptr;
3906 else
3907 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3908 symval = (isym->st_value
3909 + sym_sec->output_section->vma
3910 + sym_sec->output_offset);
3911 #ifdef DEBUG_RELAX
3912 {
3913 char * name = bfd_elf_string_from_elf_section
3914 (abfd, symtab_hdr->sh_link, isym->st_name);
3915
3916 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3917 sym_sec->name, name, isym->st_name,
3918 sym_sec->output_section->vma,
3919 sym_sec->output_offset,
3920 isym->st_value, irel->r_addend);
3921 }
3922 #endif
3923 }
3924 else
3925 {
3926 unsigned long indx;
3927 struct elf_link_hash_entry * h;
3928
3929 /* An external symbol. */
3930 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3931 h = elf_sym_hashes (abfd)[indx];
3932 BFD_ASSERT (h != NULL);
3933
3934 if ( h->root.type != bfd_link_hash_defined
3935 && h->root.type != bfd_link_hash_defweak)
3936 /* This appears to be a reference to an undefined
3937 symbol. Just ignore it--it will be caught by the
3938 regular reloc processing. */
3939 continue;
3940
3941 symval = (h->root.u.def.value
3942 + h->root.u.def.section->output_section->vma
3943 + h->root.u.def.section->output_offset);
3944 #ifdef DEBUG_RELAX
3945 fprintf (stderr,
3946 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3947 sec->name, h->root.root.string, h->root.u.def.value,
3948 sec->output_section->vma, sec->output_offset, irel->r_addend);
3949 #endif
3950 }
3951
3952 addend = irel->r_addend;
3953
3954 foff = (symval + addend
3955 - (irel->r_offset
3956 + sec->output_section->vma
3957 + sec->output_offset
3958 + 4));
3959 #ifdef DEBUG_RELAX
3960 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3961 irel->r_offset,
3962 (irel->r_offset
3963 + sec->output_section->vma
3964 + sec->output_offset),
3965 symval, addend, foff);
3966 #endif
3967 if (foff < -0x100000 || foff >= 0x100000)
3968 /* After all that work, we can't shorten this function call. */
3969 continue;
3970
3971 /* For simplicity of coding, we are going to modify the section
3972 contents, the section relocs, and the BFD symbol table. We
3973 must tell the rest of the code not to free up this
3974 information. It would be possible to instead create a table
3975 of changes which have to be made, as is done in coff-mips.c;
3976 that would be more work, but would require less memory when
3977 the linker is run. */
3978 elf_section_data (sec)->relocs = internal_relocs;
3979 elf_section_data (sec)->this_hdr.contents = contents;
3980 symtab_hdr->contents = (bfd_byte *) isymbuf;
3981
3982 if (foff < -0x100 || foff >= 0x100)
3983 {
3984 /* Replace the long jump with a jr. */
3985
3986 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3987 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3988 else
3989 irel->r_info =
3990 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3991
3992 irel->r_addend = addend;
3993 addend = 0;
3994
3995 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3996 /* If this needs to be changed because of future relaxing,
3997 it will be handled here like other internal IND12W
3998 relocs. */
3999 bfd_put_32 (abfd,
4000 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
4001 contents + irel->r_offset);
4002 else
4003 /* We can't fully resolve this yet, because the external
4004 symbol value may be changed by future relaxing.
4005 We let the final link phase handle it. */
4006 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
4007
4008 hi_irelfn->r_info =
4009 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4010 lo_irelfn->r_info =
4011 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4012 if (!v850_elf_relax_delete_bytes (abfd, sec,
4013 irel->r_offset + 4, toaddr, 6))
4014 goto error_return;
4015
4016 align_pad_size += 6;
4017 }
4018 else
4019 {
4020 /* Replace the long jump with a br. */
4021
4022 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4023 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4024 else
4025 irel->r_info =
4026 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4027
4028 irel->r_addend = addend;
4029 addend = 0;
4030
4031 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4032 /* If this needs to be changed because of future relaxing,
4033 it will be handled here like other internal IND12W
4034 relocs. */
4035 bfd_put_16 (abfd,
4036 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4037 contents + irel->r_offset);
4038 else
4039 /* We can't fully resolve this yet, because the external
4040 symbol value may be changed by future relaxing.
4041 We let the final link phase handle it. */
4042 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4043
4044 hi_irelfn->r_info =
4045 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4046 lo_irelfn->r_info =
4047 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4048 if (!v850_elf_relax_delete_bytes (abfd, sec,
4049 irel->r_offset + 2, toaddr, 8))
4050 goto error_return;
4051
4052 align_pad_size += 8;
4053 }
4054 }
4055 }
4056
4057 irelalign = NULL;
4058 for (irel = internal_relocs; irel < irelend; irel++)
4059 {
4060 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4061 && irel->r_offset == toaddr)
4062 {
4063 irel->r_offset -= align_pad_size;
4064
4065 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4066 irelalign = irel;
4067 }
4068 }
4069
4070 addr = toaddr;
4071 }
4072
4073 if (!irelalign)
4074 {
4075 #ifdef DEBUG_RELAX
4076 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4077 align_pad_size,
4078 sec->size,
4079 sec->size - align_pad_size);
4080 #endif
4081 sec->size -= align_pad_size;
4082 }
4083
4084 finish:
4085 if (internal_relocs != NULL
4086 && elf_section_data (sec)->relocs != internal_relocs)
4087 free (internal_relocs);
4088
4089 if (contents != NULL
4090 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4091 free (contents);
4092
4093 if (isymbuf != NULL
4094 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4095 free (isymbuf);
4096
4097 return result;
4098
4099 error_return:
4100 result = FALSE;
4101 goto finish;
4102 }
4103
4104 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4105 {
4106 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4107 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4108 + SHF_EXECINSTR) },
4109 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4110 + SHF_V850_GPREL) },
4111 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4112 + SHF_V850_R0REL) },
4113 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4114 + SHF_V850_GPREL) },
4115 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4116 + SHF_V850_GPREL) },
4117 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4118 + SHF_V850_GPREL) },
4119 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4120 + SHF_V850_EPREL) },
4121 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4122 + SHF_V850_R0REL) },
4123 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4124 + SHF_V850_EPREL) },
4125 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4126 + SHF_V850_R0REL) },
4127 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4128 + SHF_V850_R0REL) },
4129 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4130 + SHF_V850_R0REL) },
4131 { NULL, 0, 0, 0, 0 }
4132 };
4133 \f
4134 #define TARGET_LITTLE_SYM v850_elf32_vec
4135 #define TARGET_LITTLE_NAME "elf32-v850"
4136 #define ELF_ARCH bfd_arch_v850
4137 #define ELF_MACHINE_CODE EM_V850
4138 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4139 #define ELF_MAXPAGESIZE 0x1000
4140
4141 #define elf_info_to_howto v850_elf_info_to_howto_rela
4142 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4143
4144 #define elf_backend_check_relocs v850_elf_check_relocs
4145 #define elf_backend_relocate_section v850_elf_relocate_section
4146 #define elf_backend_object_p v850_elf_object_p
4147 #define elf_backend_final_write_processing v850_elf_final_write_processing
4148 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4149 #define elf_backend_symbol_processing v850_elf_symbol_processing
4150 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4151 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4152 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4153 #define elf_backend_fake_sections v850_elf_fake_sections
4154 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4155 #define elf_backend_special_sections v850_elf_special_sections
4156
4157 #define elf_backend_can_gc_sections 1
4158 #define elf_backend_rela_normal 1
4159
4160 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4161 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4162
4163 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4164 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4165 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4166 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4167 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4168 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4169
4170 #define elf_symbol_leading_char '_'
4171
4172 #undef elf32_bed
4173 #define elf32_bed elf32_v850_bed
4174
4175 #include "elf32-target.h"
4176
4177 /* Map BFD reloc types to V800 ELF reloc types. */
4178
4179 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4180 {
4181 { BFD_RELOC_NONE, R_V810_NONE },
4182 { BFD_RELOC_8, R_V810_BYTE },
4183 { BFD_RELOC_16, R_V810_HWORD },
4184 { BFD_RELOC_32, R_V810_WORD },
4185 { BFD_RELOC_LO16, R_V810_WLO },
4186 { BFD_RELOC_HI16, R_V810_WHI },
4187 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4188 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4189 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4190 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4191 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4192 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4193 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4194 { BFD_RELOC_V850_23, R_V850_WLO23 },
4195 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4196 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4197 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4198 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4199 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4200 };
4201
4202 /* Map a bfd relocation into the appropriate howto structure. */
4203
4204 static reloc_howto_type *
4205 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4206 {
4207 unsigned int i;
4208
4209 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4210
4211 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4212 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4213 {
4214 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4215 unsigned int idx = elf_reloc_val - R_V810_NONE;
4216
4217 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4218
4219 return v800_elf_howto_table + idx;
4220 }
4221
4222 #ifdef DEBUG
4223 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4224 #endif
4225 return NULL;
4226 }
4227
4228 static reloc_howto_type *
4229 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4230 {
4231 unsigned int i;
4232
4233 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4234
4235 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4236 if (v800_elf_howto_table[i].name != NULL
4237 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4238 return v800_elf_howto_table + i;
4239
4240 return NULL;
4241 }
4242
4243
4244 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4245
4246 static void
4247 v800_elf_info_to_howto (bfd * abfd,
4248 arelent * cache_ptr,
4249 Elf_Internal_Rela * dst)
4250 {
4251 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4252
4253 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4254
4255 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
4256
4257 if (r_type == R_V800_NONE)
4258 r_type = R_V810_NONE;
4259
4260 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
4261 r_type -= R_V810_NONE;
4262 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
4263
4264 cache_ptr->howto = v800_elf_howto_table + r_type;
4265 }
4266 \f
4267 #undef TARGET_LITTLE_SYM
4268 #define TARGET_LITTLE_SYM v800_elf32_vec
4269 #undef TARGET_LITTLE_NAME
4270 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4271 #undef ELF_ARCH
4272 #define ELF_ARCH bfd_arch_v850_rh850
4273 #undef ELF_MACHINE_CODE
4274 #define ELF_MACHINE_CODE EM_V800
4275 #undef ELF_MACHINE_ALT1
4276
4277 #undef elf32_bed
4278 #define elf32_bed elf32_v850_rh850_bed
4279
4280 #undef elf_info_to_howto
4281 #define elf_info_to_howto v800_elf_info_to_howto
4282 #undef elf_info_to_howto_rel
4283 #define elf_info_to_howto_rel NULL
4284 #undef bfd_elf32_bfd_reloc_type_lookup
4285 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4286 #undef bfd_elf32_bfd_reloc_name_lookup
4287 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4288
4289 #include "elf32-target.h"
GDB Binutils - Deliverables
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