1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2021 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 #include "elf32-v850.h"
33
34 /* Sign-extend a 17-bit number. */
35 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
36
37 /* Sign-extend a 22-bit number. */
38 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
39
40 static reloc_howto_type v850_elf_howto_table[];
41
42 /* Look through the relocs for a section during the first phase, and
43 allocate space in the global offset table or procedure linkage
44 table. */
45
46 static bool
v850_elf_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)47 v850_elf_check_relocs (bfd *abfd,
48 struct bfd_link_info *info,
49 asection *sec,
50 const Elf_Internal_Rela *relocs)
51 {
52 bool ret = true;
53 Elf_Internal_Shdr *symtab_hdr;
54 struct elf_link_hash_entry **sym_hashes;
55 const Elf_Internal_Rela *rel;
56 const Elf_Internal_Rela *rel_end;
57 unsigned int r_type;
58 int other = 0;
59 const char *common = NULL;
60
61 if (bfd_link_relocatable (info))
62 return true;
63
64 #ifdef DEBUG
65 _bfd_error_handler ("v850_elf_check_relocs called for section %pA in %pB",
66 sec, abfd);
67 #endif
68
69 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
70 sym_hashes = elf_sym_hashes (abfd);
71
72 rel_end = relocs + sec->reloc_count;
73 for (rel = relocs; rel < rel_end; rel++)
74 {
75 unsigned long r_symndx;
76 struct elf_link_hash_entry *h;
77
78 r_symndx = ELF32_R_SYM (rel->r_info);
79 if (r_symndx < symtab_hdr->sh_info)
80 h = NULL;
81 else
82 {
83 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
84 while (h->root.type == bfd_link_hash_indirect
85 || h->root.type == bfd_link_hash_warning)
86 h = (struct elf_link_hash_entry *) h->root.u.i.link;
87 }
88
89 r_type = ELF32_R_TYPE (rel->r_info);
90 switch (r_type)
91 {
92 default:
93 break;
94
95 /* This relocation describes the C++ object vtable hierarchy.
96 Reconstruct it for later use during GC. */
97 case R_V850_GNU_VTINHERIT:
98 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
99 return false;
100 break;
101
102 /* This relocation describes which C++ vtable entries
103 are actually used. Record for later use during GC. */
104 case R_V850_GNU_VTENTRY:
105 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
106 return false;
107 break;
108
109 case R_V850_SDA_16_16_SPLIT_OFFSET:
110 case R_V850_SDA_16_16_OFFSET:
111 case R_V850_SDA_15_16_OFFSET:
112 case R_V810_GPWLO_1:
113 case R_V850_HWLO:
114 case R_V850_HWLO_1:
115 other = V850_OTHER_SDA;
116 common = ".scommon";
117 goto small_data_common;
118
119 case R_V850_ZDA_16_16_SPLIT_OFFSET:
120 case R_V850_ZDA_16_16_OFFSET:
121 case R_V850_ZDA_15_16_OFFSET:
122 other = V850_OTHER_ZDA;
123 common = ".zcommon";
124 goto small_data_common;
125
126 case R_V850_TDA_4_4_OFFSET:
127 case R_V850_TDA_4_5_OFFSET:
128 case R_V850_TDA_7_7_OFFSET:
129 case R_V850_TDA_6_8_OFFSET:
130 case R_V850_TDA_7_8_OFFSET:
131 case R_V850_TDA_16_16_OFFSET:
132 other = V850_OTHER_TDA;
133 common = ".tcommon";
134 /* fall through */
135
136 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
137
138 small_data_common:
139 if (h)
140 {
141 /* Flag which type of relocation was used. */
142 h->other |= other;
143 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
144 && (h->other & V850_OTHER_ERROR) == 0)
145 {
146 const char * msg;
147 char *buff;
148
149 switch (h->other & V850_OTHER_MASK)
150 {
151 default:
152 msg = _("variable `%s' cannot occupy in multiple small data regions");
153 break;
154 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
155 msg = _("variable `%s' can only be in one of the small, zero, and tiny data regions");
156 break;
157 case V850_OTHER_SDA | V850_OTHER_ZDA:
158 msg = _("variable `%s' cannot be in both small and zero data regions simultaneously");
159 break;
160 case V850_OTHER_SDA | V850_OTHER_TDA:
161 msg = _("variable `%s' cannot be in both small and tiny data regions simultaneously");
162 break;
163 case V850_OTHER_ZDA | V850_OTHER_TDA:
164 msg = _("variable `%s' cannot be in both zero and tiny data regions simultaneously");
165 break;
166 }
167
168 if (asprintf (&buff, msg, h->root.root.string) < 0)
169 buff = NULL;
170 else
171 msg = buff;
172 info->callbacks->warning (info, msg, h->root.root.string,
173 abfd, h->root.u.def.section,
174 (bfd_vma) 0);
175 free (buff);
176
177 bfd_set_error (bfd_error_bad_value);
178 h->other |= V850_OTHER_ERROR;
179 ret = false;
180 }
181 }
182
183 if (h && h->root.type == bfd_link_hash_common
184 && h->root.u.c.p
185 && !strcmp (bfd_section_name (h->root.u.c.p->section), "COMMON"))
186 {
187 asection * section;
188
189 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
190 section->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
191 }
192
193 #ifdef DEBUG
194 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
195 v850_elf_howto_table[ (int)r_type ].name,
196 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
197 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
198 #endif
199 break;
200 }
201 }
202
203 return ret;
204 }
205
206 /* In the old version, when an entry was checked out from the table,
207 it was deleted. This produced an error if the entry was needed
208 more than once, as the second attempted retry failed.
209
210 In the current version, the entry is not deleted, instead we set
211 the field 'found' to TRUE. If a second lookup matches the same
212 entry, then we know that the hi16s reloc has already been updated
213 and does not need to be updated a second time.
214
215 TODO - TOFIX: If it is possible that we need to restore 2 different
216 addresses from the same table entry, where the first generates an
217 overflow, whilst the second do not, then this code will fail. */
218
219 typedef struct hi16s_location
220 {
221 bfd_vma addend;
222 bfd_byte *address;
223 unsigned long counter;
224 bool found;
225 struct hi16s_location *next;
226 }
227 hi16s_location;
228
229 static hi16s_location * previous_hi16s;
230 static hi16s_location * free_hi16s;
231 static unsigned long hi16s_counter;
232
233 static void
remember_hi16s_reloc(bfd * abfd,bfd_vma addend,bfd_byte * address)234 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
235 {
236 hi16s_location * entry = NULL;
237 size_t amt = sizeof (* free_hi16s);
238
239 /* Find a free structure. */
240 if (free_hi16s == NULL)
241 free_hi16s = bfd_zalloc (abfd, amt);
242
243 entry = free_hi16s;
244 free_hi16s = free_hi16s->next;
245
246 entry->addend = addend;
247 entry->address = address;
248 entry->counter = hi16s_counter ++;
249 entry->found = false;
250 entry->next = previous_hi16s;
251 previous_hi16s = entry;
252
253 /* Cope with wrap around of our counter. */
254 if (hi16s_counter == 0)
255 {
256 /* XXX: Assume that all counter entries differ only in their low 16 bits. */
257 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
258 entry->counter &= 0xffff;
259
260 hi16s_counter = 0x10000;
261 }
262 }
263
264 static bfd_byte *
find_remembered_hi16s_reloc(bfd_vma addend,bool * already_found)265 find_remembered_hi16s_reloc (bfd_vma addend, bool *already_found)
266 {
267 hi16s_location *match = NULL;
268 hi16s_location *entry;
269 bfd_byte *addr;
270
271 /* Search the table. Record the most recent entry that matches. */
272 for (entry = previous_hi16s; entry; entry = entry->next)
273 {
274 if (entry->addend == addend
275 && (match == NULL || match->counter < entry->counter))
276 {
277 match = entry;
278 }
279 }
280
281 if (match == NULL)
282 return NULL;
283
284 /* Extract the address. */
285 addr = match->address;
286
287 /* Remember if this entry has already been used before. */
288 if (already_found)
289 * already_found = match->found;
290
291 /* Note that this entry has now been used. */
292 match->found = true;
293
294 return addr;
295 }
296
297 /* Calculate the final operand value for a R_V850_LO16 or
298 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
299 ADDEND is the sum of the relocation symbol and offset. Store the
300 operand value in *INSN and return true on success.
301
302 The assembler has already done some of this: If the value stored in
303 the instruction has its 15th bit set, (counting from zero) then the
304 assembler will have added 1 to the value stored in the associated
305 HI16S reloc. So for example, these relocations:
306
307 movhi hi( fred ), r0, r1
308 movea lo( fred ), r1, r1
309
310 will store 0 in the value fields for the MOVHI and MOVEA instructions
311 and addend will be the address of fred, but for these instructions:
312
313 movhi hi( fred + 0x123456 ), r0, r1
314 movea lo( fred + 0x123456 ), r1, r1
315
316 the value stored in the MOVHI instruction will be 0x12 and the value
317 stored in the MOVEA instruction will be 0x3456. If however the
318 instructions were:
319
320 movhi hi( fred + 0x10ffff ), r0, r1
321 movea lo( fred + 0x10ffff ), r1, r1
322
323 then the value stored in the MOVHI instruction would be 0x11 (not
324 0x10) and the value stored in the MOVEA instruction would be 0xffff.
325 Thus (assuming for the moment that the addend is 0), at run time the
326 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
327 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
328 the instructions were:
329
330 movhi hi( fred - 1 ), r0, r1
331 movea lo( fred - 1 ), r1, r1
332
333 then 0 is stored in the MOVHI instruction and -1 is stored in the
334 MOVEA instruction.
335
336 Overflow can occur if the addition of the value stored in the
337 instruction plus the addend sets the 15th bit when before it was clear.
338 This is because the 15th bit will be sign extended into the high part,
339 thus reducing its value by one, but since the 15th bit was originally
340 clear, the assembler will not have added 1 to the previous HI16S reloc
341 to compensate for this effect. For example:
342
343 movhi hi( fred + 0x123456 ), r0, r1
344 movea lo( fred + 0x123456 ), r1, r1
345
346 The value stored in HI16S reloc is 0x12, the value stored in the LO16
347 reloc is 0x3456. If we assume that the address of fred is 0x00007000
348 then the relocations become:
349
350 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
351 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
352
353 but when the instructions are executed, the MOVEA instruction's value
354 is signed extended, so the sum becomes:
355
356 0x00120000
357 + 0xffffa456
358 ------------
359 0x0011a456 but 'fred + 0x123456' = 0x0012a456
360
361 Note that if the 15th bit was set in the value stored in the LO16
362 reloc, then we do not have to do anything:
363
364 movhi hi( fred + 0x10ffff ), r0, r1
365 movea lo( fred + 0x10ffff ), r1, r1
366
367 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
368 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
369
370 0x00110000
371 + 0x00006fff
372 ------------
373 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
374
375 Overflow can also occur if the computation carries into the 16th bit
376 and it also results in the 15th bit having the same value as the 15th
377 bit of the original value. What happens is that the HI16S reloc
378 will have already examined the 15th bit of the original value and
379 added 1 to the high part if the bit is set. This compensates for the
380 sign extension of 15th bit of the result of the computation. But now
381 there is a carry into the 16th bit, and this has not been allowed for.
382
383 So, for example if fred is at address 0xf000:
384
385 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
386 movea lo( fred + 0xffff ), r1, r1
387
388 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
389 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
390
391 0x00010000
392 + 0xffffefff
393 ------------
394 0x0000efff but 'fred + 0xffff' = 0x0001efff
395
396 Similarly, if the 15th bit remains clear, but overflow occurs into
397 the 16th bit then (assuming the address of fred is 0xf000):
398
399 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
400 movea lo( fred + 0x7000 ), r1, r1
401
402 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
403 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
404
405 0x00000000
406 + 0x00006fff
407 ------------
408 0x00006fff but 'fred + 0x7000' = 0x00016fff
409
410 Note - there is no need to change anything if a carry occurs, and the
411 15th bit changes its value from being set to being clear, as the HI16S
412 reloc will have already added in 1 to the high part for us:
413
414 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
415 movea lo( fred + 0xffff ), r1, r1
416
417 HI16S: 0x0001 + (0x00007000 >> 16)
418 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
419
420 0x00010000
421 + 0x00006fff (bit 15 not set, so the top half is zero)
422 ------------
423 0x00016fff which is right (assuming that fred is at 0x7000)
424
425 but if the 15th bit goes from being clear to being set, then we must
426 once again handle overflow:
427
428 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
429 movea lo( fred + 0x7000 ), r1, r1
430
431 HI16S: 0x0000 + (0x0000ffff >> 16)
432 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
433
434 0x00000000
435 + 0x00006fff (bit 15 not set, so the top half is zero)
436 ------------
437 0x00006fff which is wrong (assuming that fred is at 0xffff). */
438
439 static bool
v850_elf_perform_lo16_relocation(bfd * abfd,unsigned long * insn,unsigned long addend)440 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
441 unsigned long addend)
442 {
443 #define BIT15_SET(x) ((x) & 0x8000)
444 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
445
446 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
447 || (OVERFLOWS (addend, *insn)
448 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
449 {
450 bool already_updated;
451 bfd_byte *hi16s_address = find_remembered_hi16s_reloc
452 (addend, & already_updated);
453
454 /* Amend the matching HI16_S relocation. */
455 if (hi16s_address != NULL)
456 {
457 if (! already_updated)
458 {
459 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
460 hi_insn += 1;
461 bfd_put_16 (abfd, hi_insn, hi16s_address);
462 }
463 }
464 else
465 {
466 _bfd_error_handler (_("failed to find previous HI16 reloc"));
467 return false;
468 }
469 }
470 #undef OVERFLOWS
471 #undef BIT15_SET
472
473 /* Do not complain if value has top bit set, as this has been
474 anticipated. */
475 *insn = (*insn + addend) & 0xffff;
476 return true;
477 }
478
479 /* FIXME: The code here probably ought to be removed and the code in reloc.c
480 allowed to do its stuff instead. At least for most of the relocs, anyway. */
481
482 static bfd_reloc_status_type
v850_elf_perform_relocation(bfd * abfd,unsigned int r_type,bfd_vma addend,bfd_byte * address)483 v850_elf_perform_relocation (bfd *abfd,
484 unsigned int r_type,
485 bfd_vma addend,
486 bfd_byte *address)
487 {
488 unsigned long insn;
489 unsigned long result;
490 bfd_signed_vma saddend = (bfd_signed_vma) addend;
491
492 switch (r_type)
493 {
494 default:
495 #ifdef DEBUG
496 _bfd_error_handler ("%pB: unsupported relocation type %#x",
497 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
813 /* Insert the addend into the instruction. */
814
815 static bfd_reloc_status_type
v850_elf_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc,asymbol * symbol,void * data ATTRIBUTE_UNUSED,asection * isection,bfd * obfd,char ** err ATTRIBUTE_UNUSED)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
v850_elf_ignore_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol ATTRIBUTE_UNUSED,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)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
1852 /* Map a bfd relocation into the appropriate howto structure. */
1853
1854 static reloc_howto_type *
v850_elf_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)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 *
v850_elf_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)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
1889 /* Set the howto pointer for an V850 ELF reloc. */
1890
1891 static bool
v850_elf_info_to_howto_rel(bfd * abfd,arelent * cache_ptr,Elf_Internal_Rela * dst)1892 v850_elf_info_to_howto_rel (bfd *abfd,
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 (_("%pB: unsupported relocation type %#x"),
1903 abfd, r_type);
1904 bfd_set_error (bfd_error_bad_value);
1905 return false;
1906 }
1907 cache_ptr->howto = &v850_elf_howto_table[r_type];
1908 return true;
1909 }
1910
1911 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1912
1913 static bool
v850_elf_info_to_howto_rela(bfd * abfd,arelent * cache_ptr,Elf_Internal_Rela * dst)1914 v850_elf_info_to_howto_rela (bfd *abfd,
1915 arelent * cache_ptr,
1916 Elf_Internal_Rela *dst)
1917 {
1918 unsigned int r_type;
1919
1920 r_type = ELF32_R_TYPE (dst->r_info);
1921 if (r_type >= (unsigned int) R_V850_max)
1922 {
1923 /* xgettext:c-format */
1924 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1925 abfd, r_type);
1926 bfd_set_error (bfd_error_bad_value);
1927 return false;
1928 }
1929 cache_ptr->howto = &v850_elf_howto_table[r_type];
1930 return true;
1931 }
1932
1933 static bool
v850_elf_is_local_label_name(bfd * abfd ATTRIBUTE_UNUSED,const char * name)1934 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1935 {
1936 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1937 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1938 }
1939
1940 static bool
v850_elf_is_target_special_symbol(bfd * abfd,asymbol * sym)1941 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1942 {
1943 return v850_elf_is_local_label_name (abfd, sym->name);
1944 }
1945
1946 /* We overload some of the bfd_reloc error codes for own purposes. */
1947 #define bfd_reloc_gp_not_found bfd_reloc_other
1948 #define bfd_reloc_ep_not_found bfd_reloc_continue
1949 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1950
1951 /* Perform a relocation as part of a final link. */
1952
1953 static bfd_reloc_status_type
v850_elf_final_link_relocate(reloc_howto_type * howto,bfd * input_bfd,bfd * output_bfd ATTRIBUTE_UNUSED,asection * input_section,bfd_byte * contents,bfd_vma offset,bfd_vma value,bfd_vma addend,struct bfd_link_info * info,asection * sym_sec,int is_local ATTRIBUTE_UNUSED)1954 v850_elf_final_link_relocate (reloc_howto_type *howto,
1955 bfd *input_bfd,
1956 bfd *output_bfd ATTRIBUTE_UNUSED,
1957 asection *input_section,
1958 bfd_byte *contents,
1959 bfd_vma offset,
1960 bfd_vma value,
1961 bfd_vma addend,
1962 struct bfd_link_info *info,
1963 asection *sym_sec,
1964 int is_local ATTRIBUTE_UNUSED)
1965 {
1966 unsigned int r_type = howto->type;
1967 bfd_byte *hit_data = contents + offset;
1968
1969 /* Adjust the value according to the relocation. */
1970 switch (r_type)
1971 {
1972 case R_V850_PC9:
1973 case R_V850_9_PCREL:
1974 value -= (input_section->output_section->vma
1975 + input_section->output_offset);
1976 value -= offset;
1977 break;
1978
1979 case R_V850_PC16U:
1980 case R_V850_16_PCREL:
1981 value -= (input_section->output_section->vma
1982 + input_section->output_offset
1983 + offset);
1984
1985 /* If the sign extension will corrupt the value then we have overflowed. */
1986 if ((value & 0xffff0000) != 0xffff0000)
1987 return bfd_reloc_overflow;
1988
1989 break;
1990
1991 case R_V850_PC17:
1992 case R_V850_17_PCREL:
1993 value -= (input_section->output_section->vma
1994 + input_section->output_offset
1995 + offset);
1996
1997 /* If the sign extension will corrupt the value then we have overflowed. */
1998 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1999 return bfd_reloc_overflow;
2000
2001 value = SEXT17 (value);
2002 break;
2003
2004 case R_V850_PCR22:
2005 case R_V850_22_PCREL:
2006 value -= (input_section->output_section->vma
2007 + input_section->output_offset
2008 + offset);
2009
2010 /* If the sign extension will corrupt the value then we have overflowed. */
2011 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2012 return bfd_reloc_overflow;
2013
2014 /* Only the bottom 22 bits of the PC are valid. */
2015 value = SEXT22 (value);
2016 break;
2017
2018 case R_V850_PC32:
2019 case R_V850_32_PCREL:
2020 value -= (input_section->output_section->vma
2021 + input_section->output_offset
2022 + offset);
2023 break;
2024
2025 case R_V850_32_ABS:
2026 case R_V850_23:
2027 case R_V850_HI16_S:
2028 case R_V850_HI16:
2029 case R_V850_LO16:
2030 case R_V850_LO16_S1:
2031 case R_V850_LO16_SPLIT_OFFSET:
2032 case R_V850_16:
2033 case R_V850_ABS32:
2034 case R_V850_8:
2035 case R_V810_BYTE:
2036 case R_V810_HWORD:
2037 case R_V810_WORD:
2038 case R_V810_WLO:
2039 case R_V810_WHI:
2040 case R_V810_WHI1:
2041 case R_V810_WLO_1:
2042 case R_V850_WLO23:
2043 case R_V850_BLO:
2044 break;
2045
2046 case R_V850_ZDA_15_16_OFFSET:
2047 case R_V850_ZDA_16_16_OFFSET:
2048 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2049 if (sym_sec == NULL)
2050 return bfd_reloc_undefined;
2051
2052 value -= sym_sec->output_section->vma;
2053 break;
2054
2055 case R_V850_SDA_15_16_OFFSET:
2056 case R_V850_SDA_16_16_OFFSET:
2057 case R_V850_SDA_16_16_SPLIT_OFFSET:
2058 case R_V810_GPWLO_1:
2059 {
2060 unsigned long gp;
2061 struct bfd_link_hash_entry * h;
2062
2063 if (sym_sec == NULL)
2064 return bfd_reloc_undefined;
2065
2066 /* Get the value of __gp. */
2067 h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
2068 if (h == NULL
2069 || h->type != bfd_link_hash_defined)
2070 return bfd_reloc_gp_not_found;
2071
2072 gp = (h->u.def.value
2073 + h->u.def.section->output_section->vma
2074 + h->u.def.section->output_offset);
2075
2076 value -= sym_sec->output_section->vma;
2077 value -= (gp - sym_sec->output_section->vma);
2078 }
2079 break;
2080
2081 case R_V850_TDA_4_4_OFFSET:
2082 case R_V850_TDA_4_5_OFFSET:
2083 case R_V850_TDA_7_7_OFFSET:
2084 case R_V850_TDA_7_8_OFFSET:
2085 case R_V850_TDA_6_8_OFFSET:
2086 case R_V850_TDA_16_16_OFFSET:
2087 {
2088 unsigned long ep;
2089 struct bfd_link_hash_entry * h;
2090
2091 /* Get the value of __ep. */
2092 h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
2093 if (h == NULL
2094 || h->type != bfd_link_hash_defined)
2095 return bfd_reloc_ep_not_found;
2096
2097 ep = (h->u.def.value
2098 + h->u.def.section->output_section->vma
2099 + h->u.def.section->output_offset);
2100
2101 value -= ep;
2102 }
2103 break;
2104
2105 case R_V850_CALLT_6_7_OFFSET:
2106 {
2107 unsigned long ctbp;
2108 struct bfd_link_hash_entry * h;
2109
2110 /* Get the value of __ctbp. */
2111 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
2112 if (h == NULL
2113 || h->type != bfd_link_hash_defined)
2114 return bfd_reloc_ctbp_not_found;
2115
2116 ctbp = (h->u.def.value
2117 + h->u.def.section->output_section->vma
2118 + h->u.def.section->output_offset);
2119 value -= ctbp;
2120 }
2121 break;
2122
2123 case R_V850_CALLT_15_16_OFFSET:
2124 case R_V850_CALLT_16_16_OFFSET:
2125 {
2126 unsigned long ctbp;
2127 struct bfd_link_hash_entry * h;
2128
2129 if (sym_sec == NULL)
2130 return bfd_reloc_undefined;
2131
2132 /* Get the value of __ctbp. */
2133 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
2134 if (h == NULL
2135 || h->type != bfd_link_hash_defined)
2136 return bfd_reloc_ctbp_not_found;
2137
2138 ctbp = (h->u.def.value
2139 + h->u.def.section->output_section->vma
2140 + h->u.def.section->output_offset);
2141
2142 value -= sym_sec->output_section->vma;
2143 value -= (ctbp - sym_sec->output_section->vma);
2144 }
2145 break;
2146
2147 case R_V850_NONE:
2148 case R_V810_NONE:
2149 case R_V850_GNU_VTINHERIT:
2150 case R_V850_GNU_VTENTRY:
2151 case R_V850_LONGCALL:
2152 case R_V850_LONGJUMP:
2153 case R_V850_ALIGN:
2154 return bfd_reloc_ok;
2155
2156 default:
2157 #ifdef DEBUG
2158 _bfd_error_handler ("%pB: unsupported relocation type %#x",
2159 input_bfd, r_type);
2160 #endif
2161 return bfd_reloc_notsupported;
2162 }
2163
2164 /* Perform the relocation. */
2165 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2166 }
2167
2168 /* Relocate an V850 ELF section. */
2169
2170 static int
v850_elf_relocate_section(bfd * output_bfd,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)2171 v850_elf_relocate_section (bfd *output_bfd,
2172 struct bfd_link_info *info,
2173 bfd *input_bfd,
2174 asection *input_section,
2175 bfd_byte *contents,
2176 Elf_Internal_Rela *relocs,
2177 Elf_Internal_Sym *local_syms,
2178 asection **local_sections)
2179 {
2180 Elf_Internal_Shdr *symtab_hdr;
2181 struct elf_link_hash_entry **sym_hashes;
2182 Elf_Internal_Rela *rel;
2183 Elf_Internal_Rela *relend;
2184
2185 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2186 sym_hashes = elf_sym_hashes (input_bfd);
2187
2188 /* Reset the list of remembered HI16S relocs to empty. */
2189 free_hi16s = previous_hi16s;
2190 previous_hi16s = NULL;
2191 hi16s_counter = 0;
2192
2193 rel = relocs;
2194 relend = relocs + input_section->reloc_count;
2195 for (; rel < relend; rel++)
2196 {
2197 unsigned int r_type;
2198 reloc_howto_type *howto;
2199 unsigned long r_symndx;
2200 Elf_Internal_Sym *sym;
2201 asection *sec;
2202 struct elf_link_hash_entry *h;
2203 bfd_vma relocation;
2204 bfd_reloc_status_type r;
2205
2206 r_symndx = ELF32_R_SYM (rel->r_info);
2207 r_type = ELF32_R_TYPE (rel->r_info);
2208
2209 if (r_type == R_V850_GNU_VTENTRY
2210 || r_type == R_V850_GNU_VTINHERIT)
2211 continue;
2212
2213 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2214 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2215 else
2216 howto = v850_elf_howto_table + r_type;
2217
2218 BFD_ASSERT (r_type == howto->type);
2219
2220 h = NULL;
2221 sym = NULL;
2222 sec = NULL;
2223 if (r_symndx < symtab_hdr->sh_info)
2224 {
2225 sym = local_syms + r_symndx;
2226 sec = local_sections[r_symndx];
2227 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2228 }
2229 else
2230 {
2231 bool unresolved_reloc, warned, ignored;
2232
2233 /* Note - this check is delayed until now as it is possible and
2234 valid to have a file without any symbols but with relocs that
2235 can be processed. */
2236 if (sym_hashes == NULL)
2237 {
2238 info->callbacks->warning
2239 (info, "no hash table available",
2240 NULL, input_bfd, input_section, (bfd_vma) 0);
2241
2242 return false;
2243 }
2244
2245 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2246 r_symndx, symtab_hdr, sym_hashes,
2247 h, sec, relocation,
2248 unresolved_reloc, warned, ignored);
2249 }
2250
2251 if (sec != NULL && discarded_section (sec))
2252 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2253 rel, 1, relend, howto, 0, contents);
2254
2255 if (bfd_link_relocatable (info))
2256 continue;
2257
2258 /* FIXME: We should use the addend, but the COFF relocations don't. */
2259 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2260 input_section,
2261 contents, rel->r_offset,
2262 relocation, rel->r_addend,
2263 info, sec, h == NULL);
2264
2265 if (r != bfd_reloc_ok)
2266 {
2267 const char * name;
2268 const char * msg = NULL;
2269
2270 if (h != NULL)
2271 name = h->root.root.string;
2272 else
2273 {
2274 name = (bfd_elf_string_from_elf_section
2275 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2276 if (name == NULL || *name == '\0')
2277 name = bfd_section_name (sec);
2278 }
2279
2280 switch ((int) r)
2281 {
2282 case bfd_reloc_overflow:
2283 (*info->callbacks->reloc_overflow)
2284 (info, (h ? &h->root : NULL), name, howto->name,
2285 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2286 break;
2287
2288 case bfd_reloc_undefined:
2289 (*info->callbacks->undefined_symbol)
2290 (info, name, input_bfd, input_section, rel->r_offset, true);
2291 break;
2292
2293 case bfd_reloc_outofrange:
2294 msg = _("internal error: out of range error");
2295 goto common_error;
2296
2297 case bfd_reloc_notsupported:
2298 msg = _("internal error: unsupported relocation error");
2299 goto common_error;
2300
2301 case bfd_reloc_dangerous:
2302 msg = _("internal error: dangerous relocation");
2303 goto common_error;
2304
2305 case bfd_reloc_gp_not_found:
2306 msg = _("could not locate special linker symbol __gp");
2307 goto common_error;
2308
2309 case bfd_reloc_ep_not_found:
2310 msg = _("could not locate special linker symbol __ep");
2311 goto common_error;
2312
2313 case bfd_reloc_ctbp_not_found:
2314 msg = _("could not locate special linker symbol __ctbp");
2315 goto common_error;
2316
2317 default:
2318 msg = _("internal error: unknown error");
2319 /* fall through */
2320
2321 common_error:
2322 (*info->callbacks->warning) (info, msg, name, input_bfd,
2323 input_section, rel->r_offset);
2324 break;
2325 }
2326 }
2327 }
2328
2329 return true;
2330 }
2331
2332 static asection *
v850_elf_gc_mark_hook(asection * sec,struct bfd_link_info * info,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)2333 v850_elf_gc_mark_hook (asection *sec,
2334 struct bfd_link_info *info,
2335 Elf_Internal_Rela *rel,
2336 struct elf_link_hash_entry *h,
2337 Elf_Internal_Sym *sym)
2338 {
2339 if (h != NULL)
2340 switch (ELF32_R_TYPE (rel->r_info))
2341 {
2342 case R_V850_GNU_VTINHERIT:
2343 case R_V850_GNU_VTENTRY:
2344 return NULL;
2345 }
2346
2347 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2348 }
2349
2350 static void
v850_set_note(bfd * abfd,asection * s,enum v850_notes note,unsigned int val)2351 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2352 {
2353 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2354
2355 bfd_put_32 (abfd, 4, data + 0);
2356 bfd_put_32 (abfd, 4, data + 4);
2357 bfd_put_32 (abfd, note, data + 8);
2358 memcpy (data + 12, V850_NOTE_NAME, 4);
2359 bfd_put_32 (abfd, val, data + 16);
2360 }
2361
2362 /* Create the note section if not already present. This is done early so
2363 that the linker maps the sections to the right place in the output. */
2364
2365 static asection *
v850_elf_make_note_section(bfd * abfd)2366 v850_elf_make_note_section (bfd * abfd)
2367 {
2368 asection *s;
2369 bfd_byte *data;
2370 flagword flags;
2371 enum v850_notes id;
2372
2373 /* Make the note section. */
2374 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2375
2376 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2377 if (s == NULL)
2378 return NULL;
2379
2380 if (!bfd_set_section_alignment (s, 2))
2381 return NULL;
2382
2383 /* Allocate space for all known notes. */
2384 if (!bfd_set_section_size (s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2385 return NULL;
2386
2387 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2388 if (data == NULL)
2389 return NULL;
2390
2391 s->contents = data;
2392
2393 /* Provide default (= uninitilaised) values for all of the notes. */
2394 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2395 v850_set_note (abfd, s, id, 0);
2396
2397 return s;
2398 }
2399
2400 /* Create the note section if not already present. This is done early so
2401 that the linker maps the sections to the right place in the output. */
2402
2403 bool
v850_elf_create_sections(struct bfd_link_info * info)2404 v850_elf_create_sections (struct bfd_link_info * info)
2405 {
2406 bfd * ibfd;
2407
2408 /* If we already have a note section, do not make another. */
2409 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2410 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2411 return true;
2412
2413 return v850_elf_make_note_section (info->input_bfds) != NULL;
2414 }
2415
2416 bool
v850_elf_set_note(bfd * abfd,enum v850_notes note,unsigned int val)2417 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2418 {
2419 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2420
2421 if (val > 2)
2422 /* At the moment, no known note has a value over 2. */
2423 return false;
2424
2425 if (notes == NULL)
2426 notes = v850_elf_make_note_section (abfd);
2427 if (notes == NULL)
2428 return false;
2429
2430 v850_set_note (abfd, notes, note, val);
2431 return true;
2432 }
2433
2434 /* Copy a v850 note section from one object module to another. */
2435
2436 static void
v850_elf_copy_notes(bfd * ibfd,bfd * obfd)2437 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2438 {
2439 asection * onotes;
2440 asection * inotes;
2441
2442 /* If the output bfd does not have a note section, then
2443 skip the merge. The normal input to output section
2444 copying will take care of everythng for us. */
2445 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2446 return;
2447
2448 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2449 return;
2450
2451 if (bfd_section_size (inotes) == bfd_section_size (onotes))
2452 {
2453 bfd_byte * icont;
2454 bfd_byte * ocont;
2455
2456 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2457 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2458
2459 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2460 /* If the output is being stripped then it is possible for
2461 the notes section to disappear. In this case do nothing. */
2462 return;
2463
2464 /* Copy/overwrite notes from the input to the output. */
2465 memcpy (ocont, icont, bfd_section_size (onotes));
2466 }
2467 }
2468
2469 /* Copy backend specific data from one object module to another. */
2470
2471 static bool
v850_elf_copy_private_bfd_data(bfd * ibfd,bfd * obfd)2472 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2473 {
2474 v850_elf_copy_notes (ibfd, obfd);
2475 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2476 }
2477 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2478
2479 static bool
v850_elf_merge_notes(bfd * ibfd,bfd * obfd)2480 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2481 {
2482 asection * onotes;
2483 asection * inotes;
2484 bool result = true;
2485
2486 /* If the output bfd does not have a note section, then
2487 skip the merge. The normal input to output section
2488 copying will take care of everythng for us. */
2489 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2490 return true;
2491
2492 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2493 {
2494 enum v850_notes id;
2495 bfd_byte * icont;
2496 bfd_byte * ocont;
2497
2498 BFD_ASSERT (bfd_section_size (inotes) == bfd_section_size (onotes));
2499
2500 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2501 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2502
2503 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2504 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2505
2506 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2507 {
2508 unsigned int ival;
2509 unsigned int oval;
2510 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2511 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2512
2513 ival = bfd_get_32 (ibfd, idata);
2514 oval = bfd_get_32 (obfd, odata);
2515
2516 if (ival == 0 || ival == oval)
2517 continue;
2518
2519 if (oval == 0)
2520 {
2521 bfd_put_32 (obfd, ival, odata);
2522 v850_set_note (obfd, onotes, id, ival);
2523 continue;
2524 }
2525
2526 /* We have a mismatch. The ABI defines how to handle
2527 this siutation on a per note type basis. */
2528 switch (id)
2529 {
2530 case V850_NOTE_ALIGNMENT:
2531 if (oval == EF_RH850_DATA_ALIGN4)
2532 {
2533 _bfd_error_handler
2534 /* xgettext:c-format */
2535 (_("error: %pB needs 8-byte alignment but %pB is set for 4-byte alignment"),
2536 ibfd, obfd);
2537 result = false;
2538 }
2539 else
2540 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2541 Leave the obfd alignment as it is. */
2542 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2543
2544 break;
2545
2546 case V850_NOTE_DATA_SIZE:
2547 if (oval == EF_RH850_DOUBLE32)
2548 {
2549 _bfd_error_handler
2550 /* xgettext:c-format */
2551 (_("error: %pB uses 64-bit doubles but "
2552 "%pB uses 32-bit doubles"), ibfd, obfd);
2553 result = false;
2554 }
2555 else
2556 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2557 This is acceptable. Honest, that is what the ABI says. */
2558 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2559 break;
2560
2561 case V850_NOTE_FPU_INFO:
2562 if (oval == EF_RH850_FPU20)
2563 {
2564 _bfd_error_handler
2565 /* xgettext:c-format */
2566 (_("error: %pB uses FPU-3.0 but %pB only supports FPU-2.0"),
2567 ibfd, obfd);
2568 result = false;
2569 }
2570 else
2571 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2572 BFD_ASSERT (oval == EF_RH850_FPU30);
2573
2574 break;
2575
2576 default:
2577 /* None of the other conflicts matter.
2578 Stick with the current output values. */
2579 break;
2580 }
2581 }
2582
2583 /* FIXME: We should also check for conflicts between the notes
2584 and the EF flags in the ELF header. */
2585 }
2586
2587 return result;
2588 }
2589
2590 static void
print_v850_note(bfd * abfd,FILE * file,bfd_byte * data,enum v850_notes id)2591 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2592 {
2593 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2594
2595 switch (id)
2596 {
2597 case V850_NOTE_ALIGNMENT:
2598 fprintf (file, _(" alignment of 8-byte entities: "));
2599 switch (value)
2600 {
2601 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2602 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2603 case 0: fprintf (file, _("not set")); break;
2604 default: fprintf (file, _("unknown: %x"), value); break;
2605 }
2606 fputc ('\n', file);
2607 break;
2608
2609 case V850_NOTE_DATA_SIZE:
2610 fprintf (file, _(" size of doubles: "));
2611 switch (value)
2612 {
2613 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2614 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2615 case 0: fprintf (file, _("not set")); break;
2616 default: fprintf (file, _("unknown: %x"), value); break;
2617 }
2618 fputc ('\n', file);
2619 break;
2620
2621 case V850_NOTE_FPU_INFO:
2622 fprintf (file, _(" FPU support required: "));
2623 switch (value)
2624 {
2625 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2626 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2627 case 0: fprintf (file, _("none")); break;
2628 default: fprintf (file, _("unknown: %x"), value); break;
2629 }
2630 fputc ('\n', file);
2631 break;
2632
2633 case V850_NOTE_SIMD_INFO:
2634 fprintf (file, _("SIMD use: "));
2635 switch (value)
2636 {
2637 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2638 case 0: fprintf (file, _("no")); break;
2639 default: fprintf (file, _("unknown: %x"), value); break;
2640 }
2641 fputc ('\n', file);
2642 break;
2643
2644 case V850_NOTE_CACHE_INFO:
2645 fprintf (file, _("CACHE use: "));
2646 switch (value)
2647 {
2648 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2649 case 0: fprintf (file, _("no")); break;
2650 default: fprintf (file, _("unknown: %x"), value); break;
2651 }
2652 fputc ('\n', file);
2653 break;
2654
2655 case V850_NOTE_MMU_INFO:
2656 fprintf (file, _("MMU use: "));
2657 switch (value)
2658 {
2659 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2660 case 0: fprintf (file, _("no")); break;
2661 default: fprintf (file, _("unknown: %x"), value); break;
2662 }
2663 fputc ('\n', file);
2664 break;
2665
2666 default:
2667 BFD_ASSERT (0);
2668 }
2669 }
2670
2671 static void
v850_elf_print_notes(bfd * abfd,FILE * file)2672 v850_elf_print_notes (bfd * abfd, FILE * file)
2673 {
2674 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2675 enum v850_notes id;
2676
2677 if (notes == NULL || notes->contents == NULL)
2678 return;
2679
2680 BFD_ASSERT (bfd_section_size (notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2681
2682 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2683 print_v850_note (abfd, file, notes->contents, id);
2684 }
2685
2686 /* Set the right machine number and architecture. */
2687
2688 static bool
v850_elf_object_p(bfd * abfd)2689 v850_elf_object_p (bfd *abfd)
2690 {
2691 enum bfd_architecture arch;
2692 unsigned long mach;
2693
2694 switch (elf_elfheader (abfd)->e_machine)
2695 {
2696 case EM_V800:
2697 arch = bfd_arch_v850_rh850;
2698 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2699 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2700 break;
2701
2702 case EM_CYGNUS_V850:
2703 case EM_V850:
2704 arch = bfd_arch_v850;
2705 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2706 {
2707 default:
2708 case E_V850_ARCH: mach = bfd_mach_v850; break;
2709 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2710 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2711 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2712 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2713 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2714 }
2715 break;
2716
2717 default:
2718 return false;
2719 }
2720
2721 return bfd_default_set_arch_mach (abfd, arch, mach);
2722 }
2723
2724 /* Store the machine number in the flags field. */
2725
2726 static bool
v850_elf_final_write_processing(bfd * abfd)2727 v850_elf_final_write_processing (bfd *abfd)
2728 {
2729 unsigned long val;
2730
2731 switch (bfd_get_arch (abfd))
2732 {
2733 case bfd_arch_v850_rh850:
2734 val = EF_RH850_ABI;
2735 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2736 val |= EF_V800_850E3;
2737 elf_elfheader (abfd)->e_flags |= val;
2738 break;
2739
2740 case bfd_arch_v850:
2741 switch (bfd_get_mach (abfd))
2742 {
2743 default:
2744 case bfd_mach_v850: val = E_V850_ARCH; break;
2745 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2746 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2747 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2748 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2749 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2750 }
2751 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2752 elf_elfheader (abfd)->e_flags |= val;
2753 break;
2754 default:
2755 break;
2756 }
2757 return _bfd_elf_final_write_processing (abfd);
2758 }
2759
2760 /* Function to keep V850 specific file flags. */
2761
2762 static bool
v850_elf_set_private_flags(bfd * abfd,flagword flags)2763 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2764 {
2765 BFD_ASSERT (!elf_flags_init (abfd)
2766 || elf_elfheader (abfd)->e_flags == flags);
2767
2768 elf_elfheader (abfd)->e_flags = flags;
2769 elf_flags_init (abfd) = true;
2770 return true;
2771 }
2772
2773 /* Merge backend specific data from an object file
2774 to the output object file when linking. */
2775
2776 static bool
v850_elf_merge_private_bfd_data(bfd * ibfd,struct bfd_link_info * info)2777 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2778 {
2779 bfd *obfd = info->output_bfd;
2780 flagword out_flags;
2781 flagword in_flags;
2782 bool result = true;
2783
2784 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2785 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2786 return true;
2787
2788 result &= v850_elf_merge_notes (ibfd, obfd);
2789
2790 in_flags = elf_elfheader (ibfd)->e_flags;
2791 out_flags = elf_elfheader (obfd)->e_flags;
2792
2793 if (! elf_flags_init (obfd))
2794 {
2795 /* If the input is the default architecture then do not
2796 bother setting the flags for the output architecture,
2797 instead allow future merges to do this. If no future
2798 merges ever set these flags then they will retain their
2799 unitialised values, which surprise surprise, correspond
2800 to the default values. */
2801 if (bfd_get_arch_info (ibfd)->the_default)
2802 return true;
2803
2804 elf_flags_init (obfd) = true;
2805 elf_elfheader (obfd)->e_flags = in_flags;
2806
2807 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2808 && bfd_get_arch_info (obfd)->the_default)
2809 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2810
2811 return result;
2812 }
2813
2814 /* Check flag compatibility. */
2815 if (in_flags == out_flags)
2816 return result;
2817
2818 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2819 {
2820 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2821 {
2822 _bfd_error_handler
2823 (_("%pB: architecture mismatch with previous modules"), ibfd);
2824 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2825 }
2826
2827 return result;
2828 }
2829
2830 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2831 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2832 {
2833 /* Allow earlier architecture binaries to be linked with later binaries.
2834 Set the output binary to the later architecture, except for v850e1,
2835 which we set to v850e. */
2836 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2837 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2838 return result;
2839
2840 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2841 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2842 {
2843 elf_elfheader (obfd)->e_flags =
2844 ((out_flags & ~ EF_V850_ARCH) | E_V850E_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 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2851 {
2852 elf_elfheader (obfd)->e_flags =
2853 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2854 return result;
2855 }
2856
2857 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2858 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2859 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2860 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2861 {
2862 elf_elfheader (obfd)->e_flags =
2863 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2864 return result;
2865 }
2866
2867 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2868 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2869 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2870 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2871 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2872 {
2873 elf_elfheader (obfd)->e_flags =
2874 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2875 return result;
2876 }
2877
2878 _bfd_error_handler
2879 (_("%pB: architecture mismatch with previous modules"), ibfd);
2880 }
2881
2882 return result;
2883 }
2884
2885 /* Display the flags field. */
2886
2887 static bool
v850_elf_print_private_bfd_data(bfd * abfd,void * ptr)2888 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2889 {
2890 FILE * file = (FILE *) ptr;
2891
2892 BFD_ASSERT (abfd != NULL && ptr != NULL);
2893
2894 _bfd_elf_print_private_bfd_data (abfd, ptr);
2895
2896 /* xgettext:c-format. */
2897 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2898
2899 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2900 {
2901 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2902 fprintf (file, _("unknown v850 architecture"));
2903 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2904 fprintf (file, _("v850 E3 architecture"));
2905 else
2906 fprintf (file, _("v850 architecture"));
2907 }
2908 else
2909 {
2910 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2911 {
2912 default:
2913 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2914 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2915 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2916 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2917 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2918 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2919 }
2920 }
2921
2922 fputc ('\n', file);
2923
2924 v850_elf_print_notes (abfd, file);
2925
2926 return true;
2927 }
2928
2929 /* V850 ELF uses four common sections. One is the usual one, and the
2930 others are for (small) objects in one of the special data areas:
2931 small, tiny and zero. All the objects are kept together, and then
2932 referenced via the gp register, the ep register or the r0 register
2933 respectively, which yields smaller, faster assembler code. This
2934 approach is copied from elf32-mips.c. */
2935
2936 static asection v850_elf_scom_section;
2937 static const asymbol v850_elf_scom_symbol =
2938 GLOBAL_SYM_INIT (".scommon", &v850_elf_scom_section);
2939 static asection v850_elf_scom_section =
2940 BFD_FAKE_SECTION (v850_elf_scom_section, &v850_elf_scom_symbol,
2941 ".scommon", 0,
2942 SEC_IS_COMMON | SEC_SMALL_DATA | SEC_ALLOC | SEC_DATA);
2943
2944 static asection v850_elf_tcom_section;
2945 static const asymbol v850_elf_tcom_symbol =
2946 GLOBAL_SYM_INIT (".tcommon", &v850_elf_tcom_section);
2947 static asection v850_elf_tcom_section =
2948 BFD_FAKE_SECTION (v850_elf_tcom_section, &v850_elf_tcom_symbol,
2949 ".tcommon", 0,
2950 SEC_IS_COMMON | SEC_SMALL_DATA);
2951
2952 static asection v850_elf_zcom_section;
2953 static const asymbol v850_elf_zcom_symbol =
2954 GLOBAL_SYM_INIT (".zcommon", &v850_elf_zcom_section);
2955 static asection v850_elf_zcom_section =
2956 BFD_FAKE_SECTION (v850_elf_zcom_section, &v850_elf_zcom_symbol,
2957 ".zcommon", 0,
2958 SEC_IS_COMMON | SEC_SMALL_DATA);
2959
2960 /* Given a BFD section, try to locate the
2961 corresponding ELF section index. */
2962
2963 static bool
v850_elf_section_from_bfd_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,int * retval)2964 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2965 asection *sec,
2966 int *retval)
2967 {
2968 if (strcmp (bfd_section_name (sec), ".scommon") == 0)
2969 *retval = SHN_V850_SCOMMON;
2970 else if (strcmp (bfd_section_name (sec), ".tcommon") == 0)
2971 *retval = SHN_V850_TCOMMON;
2972 else if (strcmp (bfd_section_name (sec), ".zcommon") == 0)
2973 *retval = SHN_V850_ZCOMMON;
2974 else
2975 return false;
2976
2977 return true;
2978 }
2979
2980 /* Handle the special V850 section numbers that a symbol may use. */
2981
2982 static void
v850_elf_symbol_processing(bfd * abfd,asymbol * asym)2983 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2984 {
2985 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2986 unsigned int indx;
2987
2988 indx = elfsym->internal_elf_sym.st_shndx;
2989
2990 /* If the section index is an "ordinary" index, then it may
2991 refer to a v850 specific section created by the assembler.
2992 Check the section's type and change the index it matches.
2993
2994 FIXME: Should we alter the st_shndx field as well ? */
2995
2996 if (indx < elf_numsections (abfd))
2997 switch (elf_elfsections (abfd)[indx]->sh_type)
2998 {
2999 case SHT_V850_SCOMMON:
3000 indx = SHN_V850_SCOMMON;
3001 break;
3002
3003 case SHT_V850_TCOMMON:
3004 indx = SHN_V850_TCOMMON;
3005 break;
3006
3007 case SHT_V850_ZCOMMON:
3008 indx = SHN_V850_ZCOMMON;
3009 break;
3010
3011 default:
3012 break;
3013 }
3014
3015 switch (indx)
3016 {
3017 case SHN_V850_SCOMMON:
3018 asym->section = & v850_elf_scom_section;
3019 asym->value = elfsym->internal_elf_sym.st_size;
3020 break;
3021
3022 case SHN_V850_TCOMMON:
3023 asym->section = & v850_elf_tcom_section;
3024 asym->value = elfsym->internal_elf_sym.st_size;
3025 break;
3026
3027 case SHN_V850_ZCOMMON:
3028 asym->section = & v850_elf_zcom_section;
3029 asym->value = elfsym->internal_elf_sym.st_size;
3030 break;
3031 }
3032 }
3033
3034 /* Hook called by the linker routine which adds symbols from an object
3035 file. We must handle the special v850 section numbers here. */
3036
3037 static bool
v850_elf_add_symbol_hook(bfd * abfd,struct bfd_link_info * info ATTRIBUTE_UNUSED,Elf_Internal_Sym * sym,const char ** namep ATTRIBUTE_UNUSED,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)3038 v850_elf_add_symbol_hook (bfd *abfd,
3039 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3040 Elf_Internal_Sym *sym,
3041 const char **namep ATTRIBUTE_UNUSED,
3042 flagword *flagsp ATTRIBUTE_UNUSED,
3043 asection **secp,
3044 bfd_vma *valp)
3045 {
3046 unsigned int indx = sym->st_shndx;
3047
3048 /* If the section index is an "ordinary" index, then it may
3049 refer to a v850 specific section created by the assembler.
3050 Check the section's type and change the index it matches.
3051
3052 FIXME: Should we alter the st_shndx field as well ? */
3053
3054 if (indx < elf_numsections (abfd))
3055 switch (elf_elfsections (abfd)[indx]->sh_type)
3056 {
3057 case SHT_V850_SCOMMON:
3058 indx = SHN_V850_SCOMMON;
3059 break;
3060
3061 case SHT_V850_TCOMMON:
3062 indx = SHN_V850_TCOMMON;
3063 break;
3064
3065 case SHT_V850_ZCOMMON:
3066 indx = SHN_V850_ZCOMMON;
3067 break;
3068
3069 default:
3070 break;
3071 }
3072
3073 switch (indx)
3074 {
3075 case SHN_V850_SCOMMON:
3076 *secp = bfd_make_section_old_way (abfd, ".scommon");
3077 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3078 *valp = sym->st_size;
3079 break;
3080
3081 case SHN_V850_TCOMMON:
3082 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3083 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3084 *valp = sym->st_size;
3085 break;
3086
3087 case SHN_V850_ZCOMMON:
3088 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3089 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3090 *valp = sym->st_size;
3091 break;
3092 }
3093
3094 return true;
3095 }
3096
3097 static int
v850_elf_link_output_symbol_hook(struct bfd_link_info * info ATTRIBUTE_UNUSED,const char * name ATTRIBUTE_UNUSED,Elf_Internal_Sym * sym,asection * input_sec,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)3098 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3099 const char *name ATTRIBUTE_UNUSED,
3100 Elf_Internal_Sym *sym,
3101 asection *input_sec,
3102 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3103 {
3104 /* If we see a common symbol, which implies a relocatable link, then
3105 if a symbol was in a special common section in an input file, mark
3106 it as a special common in the output file. */
3107
3108 if (sym->st_shndx == SHN_COMMON)
3109 {
3110 if (strcmp (input_sec->name, ".scommon") == 0)
3111 sym->st_shndx = SHN_V850_SCOMMON;
3112 else if (strcmp (input_sec->name, ".tcommon") == 0)
3113 sym->st_shndx = SHN_V850_TCOMMON;
3114 else if (strcmp (input_sec->name, ".zcommon") == 0)
3115 sym->st_shndx = SHN_V850_ZCOMMON;
3116 }
3117
3118 /* The price we pay for using h->other unused bits as flags in the
3119 linker is cleaning up after ourselves. */
3120
3121 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3122 | V850_OTHER_ERROR);
3123
3124 return 1;
3125 }
3126
3127 static bool
v850_elf_section_from_shdr(bfd * abfd,Elf_Internal_Shdr * hdr,const char * name,int shindex)3128 v850_elf_section_from_shdr (bfd *abfd,
3129 Elf_Internal_Shdr *hdr,
3130 const char *name,
3131 int shindex)
3132 {
3133 flagword flags;
3134
3135 /* There ought to be a place to keep ELF backend specific flags, but
3136 at the moment there isn't one. We just keep track of the
3137 sections by their name, instead. */
3138
3139 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3140 return false;
3141
3142 flags = 0;
3143 switch (hdr->sh_type)
3144 {
3145 case SHT_V850_SCOMMON:
3146 case SHT_V850_TCOMMON:
3147 case SHT_V850_ZCOMMON:
3148 flags = SEC_IS_COMMON;
3149 }
3150
3151 if ((hdr->sh_flags & SHF_V850_GPREL) != 0)
3152 flags |= SEC_SMALL_DATA;
3153
3154 return (flags == 0
3155 || bfd_set_section_flags (hdr->bfd_section,
3156 hdr->bfd_section->flags | flags));
3157 }
3158
3159 /* Set the correct type for a V850 ELF section. We do this
3160 by the section name, which is a hack, but ought to work. */
3161
3162 static bool
v850_elf_fake_sections(bfd * abfd ATTRIBUTE_UNUSED,Elf_Internal_Shdr * hdr,asection * sec)3163 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3164 Elf_Internal_Shdr *hdr,
3165 asection *sec)
3166 {
3167 const char * name;
3168
3169 name = bfd_section_name (sec);
3170
3171 if (strcmp (name, ".scommon") == 0)
3172 hdr->sh_type = SHT_V850_SCOMMON;
3173 else if (strcmp (name, ".tcommon") == 0)
3174 hdr->sh_type = SHT_V850_TCOMMON;
3175 else if (strcmp (name, ".zcommon") == 0)
3176 hdr->sh_type = SHT_V850_ZCOMMON;
3177 /* Tweak the section type of .note.renesas. */
3178 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3179 {
3180 hdr->sh_type = SHT_RENESAS_INFO;
3181 hdr->sh_entsize = SIZEOF_V850_NOTE;
3182 }
3183
3184 return true;
3185 }
3186
3187 /* Delete some bytes from a section while relaxing. */
3188
3189 static bool
v850_elf_relax_delete_bytes(bfd * abfd,asection * sec,bfd_vma addr,bfd_vma toaddr,int count)3190 v850_elf_relax_delete_bytes (bfd *abfd,
3191 asection *sec,
3192 bfd_vma addr,
3193 bfd_vma toaddr,
3194 int count)
3195 {
3196 Elf_Internal_Shdr *symtab_hdr;
3197 Elf32_External_Sym *extsyms;
3198 Elf32_External_Sym *esym;
3199 Elf32_External_Sym *esymend;
3200 int sym_index;
3201 unsigned int sec_shndx;
3202 bfd_byte *contents;
3203 Elf_Internal_Rela *irel;
3204 Elf_Internal_Rela *irelend;
3205 struct elf_link_hash_entry *sym_hash;
3206 Elf_External_Sym_Shndx *shndx;
3207
3208 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3209 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3210
3211 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3212
3213 contents = elf_section_data (sec)->this_hdr.contents;
3214
3215 /* The deletion must stop at the next ALIGN reloc for an alignment
3216 power larger than the number of bytes we are deleting. */
3217
3218 /* Actually delete the bytes. */
3219 #if (DEBUG_RELAX & 2)
3220 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3221 sec->name, addr, toaddr, count );
3222 #endif
3223 memmove (contents + addr, contents + addr + count,
3224 toaddr - addr - count);
3225 memset (contents + toaddr-count, 0, count);
3226
3227 /* Adjust all the relocs. */
3228 irel = elf_section_data (sec)->relocs;
3229 irelend = irel + sec->reloc_count;
3230 if (elf_symtab_shndx_list (abfd))
3231 {
3232 Elf_Internal_Shdr *shndx_hdr;
3233
3234 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3235 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3236 }
3237 else
3238 {
3239 shndx = NULL;
3240 }
3241
3242 for (; irel < irelend; irel++)
3243 {
3244 bfd_vma raddr, paddr, symval;
3245 Elf_Internal_Sym isym;
3246
3247 /* Get the new reloc address. */
3248 raddr = irel->r_offset;
3249 if ((raddr >= (addr + count) && raddr < toaddr))
3250 irel->r_offset -= count;
3251
3252 if (raddr >= addr && raddr < addr + count)
3253 {
3254 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3255 (int) R_V850_NONE);
3256 continue;
3257 }
3258
3259 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3260 continue;
3261
3262 bfd_elf32_swap_symbol_in (abfd,
3263 extsyms + ELF32_R_SYM (irel->r_info),
3264 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3265 & isym);
3266
3267 if (isym.st_shndx != sec_shndx)
3268 continue;
3269
3270 /* Get the value of the symbol referred to by the reloc. */
3271 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3272 {
3273 symval = isym.st_value;
3274 #if (DEBUG_RELAX & 2)
3275 {
3276 char * name = bfd_elf_string_from_elf_section
3277 (abfd, symtab_hdr->sh_link, isym.st_name);
3278 fprintf (stderr,
3279 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3280 sec->name, name, isym.st_name,
3281 sec->output_section->vma, sec->output_offset,
3282 isym.st_value, irel->r_addend);
3283 }
3284 #endif
3285 }
3286 else
3287 {
3288 unsigned long indx;
3289 struct elf_link_hash_entry * h;
3290
3291 /* An external symbol. */
3292 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3293
3294 h = elf_sym_hashes (abfd) [indx];
3295 BFD_ASSERT (h != NULL);
3296
3297 symval = h->root.u.def.value;
3298 #if (DEBUG_RELAX & 2)
3299 fprintf (stderr,
3300 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3301 sec->name, h->root.root.string, h->root.u.def.value,
3302 sec->output_section->vma, sec->output_offset, irel->r_addend);
3303 #endif
3304 }
3305
3306 paddr = symval + irel->r_addend;
3307
3308 if ( (symval >= addr + count && symval < toaddr)
3309 && (paddr < addr + count || paddr >= toaddr))
3310 irel->r_addend += count;
3311 else if ( (symval < addr + count || symval >= toaddr)
3312 && (paddr >= addr + count && paddr < toaddr))
3313 irel->r_addend -= count;
3314 }
3315
3316 /* Adjust the local symbols defined in this section. */
3317 esym = extsyms;
3318 esymend = esym + symtab_hdr->sh_info;
3319
3320 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3321 {
3322 Elf_Internal_Sym isym;
3323
3324 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3325
3326 if (isym.st_shndx == sec_shndx
3327 && isym.st_value >= addr + count
3328 && isym.st_value < toaddr)
3329 {
3330 isym.st_value -= count;
3331
3332 if (isym.st_value + isym.st_size >= toaddr)
3333 isym.st_size += count;
3334
3335 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3336 }
3337 else if (isym.st_shndx == sec_shndx
3338 && isym.st_value < addr + count)
3339 {
3340 if (isym.st_value+isym.st_size >= addr + count
3341 && isym.st_value+isym.st_size < toaddr)
3342 isym.st_size -= count;
3343
3344 if (isym.st_value >= addr
3345 && isym.st_value < addr + count)
3346 isym.st_value = addr;
3347
3348 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3349 }
3350 }
3351
3352 /* Now adjust the global symbols defined in this section. */
3353 esym = extsyms + symtab_hdr->sh_info;
3354 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3355
3356 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3357 {
3358 Elf_Internal_Sym isym;
3359
3360 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3361 sym_hash = elf_sym_hashes (abfd) [sym_index];
3362
3363 if (isym.st_shndx == sec_shndx
3364 && ((sym_hash)->root.type == bfd_link_hash_defined
3365 || (sym_hash)->root.type == bfd_link_hash_defweak)
3366 && (sym_hash)->root.u.def.section == sec
3367 && (sym_hash)->root.u.def.value >= addr + count
3368 && (sym_hash)->root.u.def.value < toaddr)
3369 {
3370 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3371 {
3372 isym.st_size += count;
3373 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3374 }
3375
3376 (sym_hash)->root.u.def.value -= count;
3377 }
3378 else if (isym.st_shndx == sec_shndx
3379 && ((sym_hash)->root.type == bfd_link_hash_defined
3380 || (sym_hash)->root.type == bfd_link_hash_defweak)
3381 && (sym_hash)->root.u.def.section == sec
3382 && (sym_hash)->root.u.def.value < addr + count)
3383 {
3384 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3385 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3386 isym.st_size -= count;
3387
3388 if ((sym_hash)->root.u.def.value >= addr
3389 && (sym_hash)->root.u.def.value < addr + count)
3390 (sym_hash)->root.u.def.value = addr;
3391
3392 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3393 }
3394
3395 if (shndx)
3396 ++ shndx;
3397 }
3398
3399 return true;
3400 }
3401
3402 #define NOP_OPCODE (0x0000)
3403 #define MOVHI 0x0640 /* 4byte. */
3404 #define MOVHI_MASK 0x07e0
3405 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3406 #define MOVHI_R2(insn) ((insn) >> 11)
3407 #define MOVEA 0x0620 /* 2byte. */
3408 #define MOVEA_MASK 0x07e0
3409 #define MOVEA_R1(insn) ((insn) & 0x1f)
3410 #define MOVEA_R2(insn) ((insn) >> 11)
3411 #define JARL_4 0x00040780 /* 4byte. */
3412 #define JARL_4_MASK 0xFFFF07FF
3413 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3414 #define ADD_I 0x0240 /* 2byte. */
3415 #define ADD_I_MASK 0x07e0
3416 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3417 #define ADD_R2(insn) ((insn) >> 11)
3418 #define JMP_R 0x0060 /* 2byte. */
3419 #define JMP_R_MASK 0xFFE0
3420 #define JMP_R1(insn) ((insn) & 0x1f)
3421
3422 static bool
v850_elf_relax_section(bfd * abfd,asection * sec,struct bfd_link_info * link_info,bool * again)3423 v850_elf_relax_section (bfd *abfd,
3424 asection *sec,
3425 struct bfd_link_info *link_info,
3426 bool *again)
3427 {
3428 Elf_Internal_Shdr *symtab_hdr;
3429 Elf_Internal_Rela *internal_relocs;
3430 Elf_Internal_Rela *irel;
3431 Elf_Internal_Rela *irelend;
3432 Elf_Internal_Rela *irelalign = NULL;
3433 Elf_Internal_Sym *isymbuf = NULL;
3434 bfd_byte *contents = NULL;
3435 bfd_vma addr = 0;
3436 bfd_vma toaddr;
3437 int align_pad_size = 0;
3438 bool result = true;
3439
3440 *again = false;
3441
3442 if (bfd_link_relocatable (link_info)
3443 || (sec->flags & SEC_RELOC) == 0
3444 || sec->reloc_count == 0)
3445 return true;
3446
3447 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3448
3449 internal_relocs = (_bfd_elf_link_read_relocs
3450 (abfd, sec, NULL, NULL, link_info->keep_memory));
3451 if (internal_relocs == NULL)
3452 goto error_return;
3453
3454 irelend = internal_relocs + sec->reloc_count;
3455
3456 while (addr < sec->size)
3457 {
3458 toaddr = sec->size;
3459
3460 for (irel = internal_relocs; irel < irelend; irel ++)
3461 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3462 && irel->r_offset > addr
3463 && irel->r_offset < toaddr)
3464 toaddr = irel->r_offset;
3465
3466 #ifdef DEBUG_RELAX
3467 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3468 addr, toaddr, align_pad_size);
3469 #endif
3470 if (irelalign)
3471 {
3472 bfd_vma alignto;
3473 bfd_vma alignmoveto;
3474
3475 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3476 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3477
3478 if (alignmoveto < alignto)
3479 {
3480 bfd_vma i;
3481
3482 align_pad_size = alignto - alignmoveto;
3483 #ifdef DEBUG_RELAX
3484 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3485 alignmoveto, toaddr, align_pad_size);
3486 #endif
3487 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3488 toaddr, align_pad_size))
3489 goto error_return;
3490
3491 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3492 (i + 1) < toaddr; i += 2)
3493 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3494
3495 addr = alignmoveto;
3496 }
3497 else
3498 align_pad_size = 0;
3499 }
3500
3501 for (irel = internal_relocs; irel < irelend; irel++)
3502 {
3503 bfd_vma laddr;
3504 bfd_vma addend;
3505 bfd_vma symval;
3506 int insn[5];
3507 int no_match = -1;
3508 Elf_Internal_Rela *hi_irelfn;
3509 Elf_Internal_Rela *lo_irelfn;
3510 Elf_Internal_Rela *irelcall;
3511 bfd_signed_vma foff;
3512 unsigned int r_type;
3513
3514 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3515 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3516 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3517 continue;
3518
3519 #ifdef DEBUG_RELAX
3520 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3521 irel->r_info,
3522 irel->r_offset,
3523 irel->r_addend );
3524 #endif
3525
3526 /* Get the section contents. */
3527 if (contents == NULL)
3528 {
3529 if (elf_section_data (sec)->this_hdr.contents != NULL)
3530 contents = elf_section_data (sec)->this_hdr.contents;
3531 else
3532 {
3533 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3534 goto error_return;
3535 }
3536 }
3537
3538 /* Read this BFD's local symbols if we haven't done so already. */
3539 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3540 {
3541 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3542 if (isymbuf == NULL)
3543 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3544 symtab_hdr->sh_info, 0,
3545 NULL, NULL, NULL);
3546 if (isymbuf == NULL)
3547 goto error_return;
3548 }
3549
3550 laddr = irel->r_offset;
3551
3552 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3553 {
3554 /* Check code for -mlong-calls output. */
3555 if (laddr + 16 <= (bfd_vma) sec->size)
3556 {
3557 insn[0] = bfd_get_16 (abfd, contents + laddr);
3558 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3559 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3560 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3561 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3562
3563 if ((insn[0] & MOVHI_MASK) != MOVHI
3564 || MOVHI_R1 (insn[0]) != 0)
3565 no_match = 0;
3566
3567 if (no_match < 0
3568 && ((insn[1] & MOVEA_MASK) != MOVEA
3569 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3570 no_match = 1;
3571
3572 if (no_match < 0
3573 && (insn[2] & JARL_4_MASK) != JARL_4)
3574 no_match = 2;
3575
3576 if (no_match < 0
3577 && ((insn[3] & ADD_I_MASK) != ADD_I
3578 || ADD_I5 (insn[3]) != 4
3579 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3580 no_match = 3;
3581
3582 if (no_match < 0
3583 && ((insn[4] & JMP_R_MASK) != JMP_R
3584 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3585 no_match = 4;
3586 }
3587 else
3588 {
3589 _bfd_error_handler
3590 /* xgettext:c-format */
3591 (_("%pB: %#" PRIx64 ": warning: %s points to "
3592 "unrecognized insns"),
3593 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3594 continue;
3595 }
3596
3597 if (no_match >= 0)
3598 {
3599 _bfd_error_handler
3600 /* xgettext:c-format */
3601 (_("%pB: %#" PRIx64 ": warning: %s points to "
3602 "unrecognized insn %#x"),
3603 abfd,
3604 (uint64_t) (irel->r_offset + no_match),
3605 "R_V850_LONGCALL",
3606 insn[no_match]);
3607 continue;
3608 }
3609
3610 /* Get the reloc for the address from which the register is
3611 being loaded. This reloc will tell us which function is
3612 actually being called. */
3613
3614 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3615 {
3616 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3617
3618 if (hi_irelfn->r_offset == laddr + 2
3619 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3620 break;
3621 }
3622
3623 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3624 {
3625 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3626
3627 if (lo_irelfn->r_offset == laddr + 6
3628 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3629 break;
3630 }
3631
3632 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3633 {
3634 r_type = ELF32_R_TYPE (irelcall->r_info);
3635
3636 if (irelcall->r_offset == laddr + 8
3637 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3638 break;
3639 }
3640
3641 if ( hi_irelfn == irelend
3642 || lo_irelfn == irelend
3643 || irelcall == irelend)
3644 {
3645 _bfd_error_handler
3646 /* xgettext:c-format */
3647 (_("%pB: %#" PRIx64 ": warning: %s points to "
3648 "unrecognized reloc"),
3649 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3650
3651 continue;
3652 }
3653
3654 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3655 {
3656 Elf_Internal_Sym * isym;
3657
3658 /* A local symbol. */
3659 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3660
3661 symval = isym->st_value;
3662 }
3663 else
3664 {
3665 unsigned long indx;
3666 struct elf_link_hash_entry * h;
3667
3668 /* An external symbol. */
3669 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3670 h = elf_sym_hashes (abfd)[indx];
3671 BFD_ASSERT (h != NULL);
3672
3673 if ( h->root.type != bfd_link_hash_defined
3674 && h->root.type != bfd_link_hash_defweak)
3675 /* This appears to be a reference to an undefined
3676 symbol. Just ignore it--it will be caught by the
3677 regular reloc processing. */
3678 continue;
3679
3680 symval = h->root.u.def.value;
3681 }
3682
3683 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3684 {
3685 _bfd_error_handler
3686 /* xgettext:c-format */
3687 (_("%pB: %#" PRIx64 ": warning: %s points to "
3688 "unrecognized reloc %#" PRIx64),
3689 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL",
3690 (uint64_t) irelcall->r_offset);
3691 continue;
3692 }
3693
3694 /* Get the value of the symbol referred to by the reloc. */
3695 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3696 {
3697 Elf_Internal_Sym *isym;
3698 asection *sym_sec;
3699
3700 /* A local symbol. */
3701 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3702
3703 if (isym->st_shndx == SHN_UNDEF)
3704 sym_sec = bfd_und_section_ptr;
3705 else if (isym->st_shndx == SHN_ABS)
3706 sym_sec = bfd_abs_section_ptr;
3707 else if (isym->st_shndx == SHN_COMMON)
3708 sym_sec = bfd_com_section_ptr;
3709 else
3710 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3711 symval = (isym->st_value
3712 + sym_sec->output_section->vma
3713 + sym_sec->output_offset);
3714 }
3715 else
3716 {
3717 unsigned long indx;
3718 struct elf_link_hash_entry *h;
3719
3720 /* An external symbol. */
3721 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3722 h = elf_sym_hashes (abfd)[indx];
3723 BFD_ASSERT (h != NULL);
3724
3725 if ( h->root.type != bfd_link_hash_defined
3726 && h->root.type != bfd_link_hash_defweak)
3727 /* This appears to be a reference to an undefined
3728 symbol. Just ignore it--it will be caught by the
3729 regular reloc processing. */
3730 continue;
3731
3732 symval = (h->root.u.def.value
3733 + h->root.u.def.section->output_section->vma
3734 + h->root.u.def.section->output_offset);
3735 }
3736
3737 addend = irel->r_addend;
3738
3739 foff = (symval + addend
3740 - (irel->r_offset
3741 + sec->output_section->vma
3742 + sec->output_offset
3743 + 4));
3744 #ifdef DEBUG_RELAX
3745 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3746 irel->r_offset,
3747 (irel->r_offset
3748 + sec->output_section->vma
3749 + sec->output_offset),
3750 symval, addend, foff);
3751 #endif
3752
3753 if (foff < -0x100000 || foff >= 0x100000)
3754 /* After all that work, we can't shorten this function call. */
3755 continue;
3756
3757 /* For simplicity of coding, we are going to modify the section
3758 contents, the section relocs, and the BFD symbol table. We
3759 must tell the rest of the code not to free up this
3760 information. It would be possible to instead create a table
3761 of changes which have to be made, as is done in coff-mips.c;
3762 that would be more work, but would require less memory when
3763 the linker is run. */
3764 elf_section_data (sec)->relocs = internal_relocs;
3765 elf_section_data (sec)->this_hdr.contents = contents;
3766 symtab_hdr->contents = (bfd_byte *) isymbuf;
3767
3768 /* Replace the long call with a jarl. */
3769 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3770 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3771 else
3772 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3773
3774 addend = 0;
3775
3776 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3777 /* If this needs to be changed because of future relaxing,
3778 it will be handled here like other internal IND12W
3779 relocs. */
3780 bfd_put_32 (abfd,
3781 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3782 contents + irel->r_offset);
3783 else
3784 /* We can't fully resolve this yet, because the external
3785 symbol value may be changed by future relaxing.
3786 We let the final link phase handle it. */
3787 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3788 contents + irel->r_offset);
3789
3790 hi_irelfn->r_info =
3791 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3792 lo_irelfn->r_info =
3793 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3794 irelcall->r_info =
3795 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3796
3797 if (! v850_elf_relax_delete_bytes (abfd, sec,
3798 irel->r_offset + 4, toaddr, 12))
3799 goto error_return;
3800
3801 align_pad_size += 12;
3802 }
3803 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3804 {
3805 /* Check code for -mlong-jumps output. */
3806 if (laddr + 10 <= (bfd_vma) sec->size)
3807 {
3808 insn[0] = bfd_get_16 (abfd, contents + laddr);
3809 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3810 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3811
3812 if ((insn[0] & MOVHI_MASK) != MOVHI
3813 || MOVHI_R1 (insn[0]) != 0)
3814 no_match = 0;
3815
3816 if (no_match < 0
3817 && ((insn[1] & MOVEA_MASK) != MOVEA
3818 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3819 no_match = 1;
3820
3821 if (no_match < 0
3822 && ((insn[2] & JMP_R_MASK) != JMP_R
3823 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3824 no_match = 2;
3825 }
3826 else
3827 {
3828 _bfd_error_handler
3829 /* xgettext:c-format */
3830 (_("%pB: %#" PRIx64 ": warning: %s points to "
3831 "unrecognized insns"),
3832 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3833 continue;
3834 }
3835
3836 if (no_match >= 0)
3837 {
3838 _bfd_error_handler
3839 /* xgettext:c-format */
3840 (_("%pB: %#" PRIx64 ": warning: %s points to "
3841 "unrecognized insn %#x"),
3842 abfd,
3843 (uint64_t) (irel->r_offset + no_match),
3844 "R_V850_LONGJUMP",
3845 insn[no_match]);
3846 continue;
3847 }
3848
3849 /* Get the reloc for the address from which the register is
3850 being loaded. This reloc will tell us which function is
3851 actually being called. */
3852 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3853 {
3854 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3855
3856 if (hi_irelfn->r_offset == laddr + 2
3857 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3858 break;
3859 }
3860
3861 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3862 {
3863 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3864
3865 if (lo_irelfn->r_offset == laddr + 6
3866 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3867 break;
3868 }
3869
3870 if ( hi_irelfn == irelend
3871 || lo_irelfn == irelend)
3872 {
3873 _bfd_error_handler
3874 /* xgettext:c-format */
3875 (_("%pB: %#" PRIx64 ": warning: %s points to "
3876 "unrecognized reloc"),
3877 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3878 continue;
3879 }
3880
3881 /* Get the value of the symbol referred to by the reloc. */
3882 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3883 {
3884 Elf_Internal_Sym * isym;
3885 asection * sym_sec;
3886
3887 /* A local symbol. */
3888 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3889
3890 if (isym->st_shndx == SHN_UNDEF)
3891 sym_sec = bfd_und_section_ptr;
3892 else if (isym->st_shndx == SHN_ABS)
3893 sym_sec = bfd_abs_section_ptr;
3894 else if (isym->st_shndx == SHN_COMMON)
3895 sym_sec = bfd_com_section_ptr;
3896 else
3897 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3898 symval = (isym->st_value
3899 + sym_sec->output_section->vma
3900 + sym_sec->output_offset);
3901 #ifdef DEBUG_RELAX
3902 {
3903 char * name = bfd_elf_string_from_elf_section
3904 (abfd, symtab_hdr->sh_link, isym->st_name);
3905
3906 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3907 sym_sec->name, name, isym->st_name,
3908 sym_sec->output_section->vma,
3909 sym_sec->output_offset,
3910 isym->st_value, irel->r_addend);
3911 }
3912 #endif
3913 }
3914 else
3915 {
3916 unsigned long indx;
3917 struct elf_link_hash_entry * h;
3918
3919 /* An external symbol. */
3920 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3921 h = elf_sym_hashes (abfd)[indx];
3922 BFD_ASSERT (h != NULL);
3923
3924 if ( h->root.type != bfd_link_hash_defined
3925 && h->root.type != bfd_link_hash_defweak)
3926 /* This appears to be a reference to an undefined
3927 symbol. Just ignore it--it will be caught by the
3928 regular reloc processing. */
3929 continue;
3930
3931 symval = (h->root.u.def.value
3932 + h->root.u.def.section->output_section->vma
3933 + h->root.u.def.section->output_offset);
3934 #ifdef DEBUG_RELAX
3935 fprintf (stderr,
3936 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3937 sec->name, h->root.root.string, h->root.u.def.value,
3938 sec->output_section->vma, sec->output_offset, irel->r_addend);
3939 #endif
3940 }
3941
3942 addend = irel->r_addend;
3943
3944 foff = (symval + addend
3945 - (irel->r_offset
3946 + sec->output_section->vma
3947 + sec->output_offset
3948 + 4));
3949 #ifdef DEBUG_RELAX
3950 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3951 irel->r_offset,
3952 (irel->r_offset
3953 + sec->output_section->vma
3954 + sec->output_offset),
3955 symval, addend, foff);
3956 #endif
3957 if (foff < -0x100000 || foff >= 0x100000)
3958 /* After all that work, we can't shorten this function call. */
3959 continue;
3960
3961 /* For simplicity of coding, we are going to modify the section
3962 contents, the section relocs, and the BFD symbol table. We
3963 must tell the rest of the code not to free up this
3964 information. It would be possible to instead create a table
3965 of changes which have to be made, as is done in coff-mips.c;
3966 that would be more work, but would require less memory when
3967 the linker is run. */
3968 elf_section_data (sec)->relocs = internal_relocs;
3969 elf_section_data (sec)->this_hdr.contents = contents;
3970 symtab_hdr->contents = (bfd_byte *) isymbuf;
3971
3972 if (foff < -0x100 || foff >= 0x100)
3973 {
3974 /* Replace the long jump with a jr. */
3975
3976 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3977 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3978 else
3979 irel->r_info =
3980 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3981
3982 irel->r_addend = addend;
3983 addend = 0;
3984
3985 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3986 /* If this needs to be changed because of future relaxing,
3987 it will be handled here like other internal IND12W
3988 relocs. */
3989 bfd_put_32 (abfd,
3990 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3991 contents + irel->r_offset);
3992 else
3993 /* We can't fully resolve this yet, because the external
3994 symbol value may be changed by future relaxing.
3995 We let the final link phase handle it. */
3996 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3997
3998 hi_irelfn->r_info =
3999 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4000 lo_irelfn->r_info =
4001 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4002 if (!v850_elf_relax_delete_bytes (abfd, sec,
4003 irel->r_offset + 4, toaddr, 6))
4004 goto error_return;
4005
4006 align_pad_size += 6;
4007 }
4008 else
4009 {
4010 /* Replace the long jump with a br. */
4011
4012 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4013 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4014 else
4015 irel->r_info =
4016 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4017
4018 irel->r_addend = addend;
4019 addend = 0;
4020
4021 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4022 /* If this needs to be changed because of future relaxing,
4023 it will be handled here like other internal IND12W
4024 relocs. */
4025 bfd_put_16 (abfd,
4026 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4027 contents + irel->r_offset);
4028 else
4029 /* We can't fully resolve this yet, because the external
4030 symbol value may be changed by future relaxing.
4031 We let the final link phase handle it. */
4032 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4033
4034 hi_irelfn->r_info =
4035 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4036 lo_irelfn->r_info =
4037 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4038 if (!v850_elf_relax_delete_bytes (abfd, sec,
4039 irel->r_offset + 2, toaddr, 8))
4040 goto error_return;
4041
4042 align_pad_size += 8;
4043 }
4044 }
4045 }
4046
4047 irelalign = NULL;
4048 for (irel = internal_relocs; irel < irelend; irel++)
4049 {
4050 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4051 && irel->r_offset == toaddr)
4052 {
4053 irel->r_offset -= align_pad_size;
4054
4055 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4056 irelalign = irel;
4057 }
4058 }
4059
4060 addr = toaddr;
4061 }
4062
4063 if (!irelalign)
4064 {
4065 #ifdef DEBUG_RELAX
4066 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4067 align_pad_size,
4068 sec->size,
4069 sec->size - align_pad_size);
4070 #endif
4071 sec->size -= align_pad_size;
4072 }
4073
4074 finish:
4075 if (elf_section_data (sec)->relocs != internal_relocs)
4076 free (internal_relocs);
4077
4078 if (elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4079 free (contents);
4080
4081 if (symtab_hdr->contents != (bfd_byte *) isymbuf)
4082 free (isymbuf);
4083
4084 return result;
4085
4086 error_return:
4087 result = false;
4088 goto finish;
4089 }
4090
4091 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4092 {
4093 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4094 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4095 + SHF_EXECINSTR) },
4096 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4097 + SHF_V850_GPREL) },
4098 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4099 + SHF_V850_R0REL) },
4100 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4101 + SHF_V850_GPREL) },
4102 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4103 + SHF_V850_GPREL) },
4104 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4105 + SHF_V850_GPREL) },
4106 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4107 + SHF_V850_EPREL) },
4108 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4109 + SHF_V850_R0REL) },
4110 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4111 + SHF_V850_EPREL) },
4112 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4113 + SHF_V850_R0REL) },
4114 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4115 + SHF_V850_R0REL) },
4116 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4117 + SHF_V850_R0REL) },
4118 { NULL, 0, 0, 0, 0 }
4119 };
4120
4121 #define TARGET_LITTLE_SYM v850_elf32_vec
4122 #define TARGET_LITTLE_NAME "elf32-v850"
4123 #define ELF_ARCH bfd_arch_v850
4124 #define ELF_MACHINE_CODE EM_V850
4125 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4126 #define ELF_MAXPAGESIZE 0x1000
4127
4128 #define elf_info_to_howto v850_elf_info_to_howto_rela
4129 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4130
4131 #define elf_backend_check_relocs v850_elf_check_relocs
4132 #define elf_backend_relocate_section v850_elf_relocate_section
4133 #define elf_backend_object_p v850_elf_object_p
4134 #define elf_backend_final_write_processing v850_elf_final_write_processing
4135 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4136 #define elf_backend_symbol_processing v850_elf_symbol_processing
4137 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4138 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4139 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4140 #define elf_backend_fake_sections v850_elf_fake_sections
4141 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4142 #define elf_backend_special_sections v850_elf_special_sections
4143
4144 #define elf_backend_can_gc_sections 1
4145 #define elf_backend_rela_normal 1
4146
4147 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4148 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4149
4150 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4151 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4152 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4153 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4154 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4155 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4156
4157 #define elf_symbol_leading_char '_'
4158
4159 #undef elf32_bed
4160 #define elf32_bed elf32_v850_bed
4161
4162 #include "elf32-target.h"
4163
4164 /* Map BFD reloc types to V800 ELF reloc types. */
4165
4166 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4167 {
4168 { BFD_RELOC_NONE, R_V810_NONE },
4169 { BFD_RELOC_8, R_V810_BYTE },
4170 { BFD_RELOC_16, R_V810_HWORD },
4171 { BFD_RELOC_32, R_V810_WORD },
4172 { BFD_RELOC_LO16, R_V810_WLO },
4173 { BFD_RELOC_HI16, R_V810_WHI },
4174 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4175 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4176 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4177 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4178 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4179 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4180 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4181 { BFD_RELOC_V850_23, R_V850_WLO23 },
4182 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4183 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4184 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4185 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4186 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4187 };
4188
4189 /* Map a bfd relocation into the appropriate howto structure. */
4190
4191 static reloc_howto_type *
v800_elf_reloc_type_lookup(bfd * abfd,bfd_reloc_code_real_type code)4192 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4193 {
4194 unsigned int i;
4195
4196 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4197
4198 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4199 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4200 {
4201 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4202 unsigned int idx = elf_reloc_val - R_V810_NONE;
4203
4204 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4205
4206 return v800_elf_howto_table + idx;
4207 }
4208
4209 #ifdef DEBUG
4210 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4211 #endif
4212 return NULL;
4213 }
4214
4215 static reloc_howto_type *
v800_elf_reloc_name_lookup(bfd * abfd,const char * r_name)4216 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4217 {
4218 unsigned int i;
4219
4220 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4221
4222 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4223 if (v800_elf_howto_table[i].name != NULL
4224 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4225 return v800_elf_howto_table + i;
4226
4227 return NULL;
4228 }
4229
4230
4231 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4232
4233 static bool
v800_elf_info_to_howto(bfd * abfd,arelent * cache_ptr,Elf_Internal_Rela * dst)4234 v800_elf_info_to_howto (bfd * abfd,
4235 arelent * cache_ptr,
4236 Elf_Internal_Rela * dst)
4237 {
4238 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4239
4240 if (r_type == R_V800_NONE)
4241 r_type = R_V810_NONE;
4242
4243 if (bfd_get_arch (abfd) != bfd_arch_v850_rh850
4244 || r_type >= (unsigned int) R_V800_max
4245 || r_type < (unsigned int) R_V810_NONE
4246 || (r_type - R_V810_NONE) >= ARRAY_SIZE (v800_elf_howto_table))
4247 {
4248 /* xgettext:c-format */
4249 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4250 abfd, r_type);
4251 bfd_set_error (bfd_error_bad_value);
4252 return false;
4253 }
4254
4255 cache_ptr->howto = v800_elf_howto_table + (r_type - R_V810_NONE);
4256 return true;
4257 }
4258
4259 #undef TARGET_LITTLE_SYM
4260 #define TARGET_LITTLE_SYM v800_elf32_vec
4261 #undef TARGET_LITTLE_NAME
4262 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4263 #undef ELF_ARCH
4264 #define ELF_ARCH bfd_arch_v850_rh850
4265 #undef ELF_MACHINE_CODE
4266 #define ELF_MACHINE_CODE EM_V800
4267 #undef ELF_MACHINE_ALT1
4268
4269 #undef elf32_bed
4270 #define elf32_bed elf32_v850_rh850_bed
4271
4272 #undef elf_info_to_howto
4273 #define elf_info_to_howto v800_elf_info_to_howto
4274 #undef elf_info_to_howto_rel
4275 #define elf_info_to_howto_rel NULL
4276 #undef bfd_elf32_bfd_reloc_type_lookup
4277 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4278 #undef bfd_elf32_bfd_reloc_name_lookup
4279 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4280
4281 #include "elf32-target.h"
4282