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gdb: Remove inappropriate comments
[binutils-gdb.git] / bfd / elf32-v850.c
blobbb3ce8d88fec4d8f50e21f5126c3794dad86bd59
1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2024 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
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
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 *
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
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
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 \f
813 /* Insert the addend into the instruction. */
814
815 static bfd_reloc_status_type
816 v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
817 arelent *reloc,
818 asymbol *symbol,
819 void * data ATTRIBUTE_UNUSED,
820 asection *isection,
821 bfd *obfd,
822 char **err ATTRIBUTE_UNUSED)
823 {
824 long relocation;
825
826 /* If there is an output BFD,
827 and the symbol is not a section name (which is only defined at final link time),
828 and either we are not putting the addend into the instruction
829 or the addend is zero, so there is nothing to add into the instruction
830 then just fixup the address and return. */
831 if (obfd != NULL
832 && (symbol->flags & BSF_SECTION_SYM) == 0
833 && (! reloc->howto->partial_inplace
834 || reloc->addend == 0))
835 {
836 reloc->address += isection->output_offset;
837 return bfd_reloc_ok;
838 }
839
840 /* Catch relocs involving undefined symbols. */
841 if (bfd_is_und_section (symbol->section)
842 && (symbol->flags & BSF_WEAK) == 0
843 && obfd == NULL)
844 return bfd_reloc_undefined;
845
846 /* We handle final linking of some relocs ourselves. */
847
848 /* Is the address of the relocation really within the section? */
849 if (reloc->address > bfd_get_section_limit (abfd, isection))
850 return bfd_reloc_outofrange;
851
852 /* Work out which section the relocation is targeted at and the
853 initial relocation command value. */
854
855 if (reloc->howto->pc_relative)
856 return bfd_reloc_ok;
857
858 /* Get symbol value. (Common symbols are special.) */
859 if (bfd_is_com_section (symbol->section))
860 relocation = 0;
861 else
862 relocation = symbol->value;
863
864 /* Convert input-section-relative symbol value to absolute + addend. */
865 relocation += symbol->section->output_section->vma;
866 relocation += symbol->section->output_offset;
867 relocation += reloc->addend;
868
869 reloc->addend = relocation;
870 return bfd_reloc_ok;
871 }
872
873 /* This function is used for relocs which are only used
874 for relaxing, which the linker should otherwise ignore. */
875
876 static bfd_reloc_status_type
877 v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
878 arelent *reloc_entry,
879 asymbol *symbol ATTRIBUTE_UNUSED,
880 void * data ATTRIBUTE_UNUSED,
881 asection *input_section,
882 bfd *output_bfd,
883 char **error_message ATTRIBUTE_UNUSED)
884 {
885 if (output_bfd != NULL)
886 reloc_entry->address += input_section->output_offset;
887
888 return bfd_reloc_ok;
889 }
890 /* Note: It is REQUIRED that the 'type' value of each entry
891 in this array match the index of the entry in the array.
892 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
893 static reloc_howto_type v850_elf_howto_table[] =
894 {
895 /* This reloc does nothing. */
896 HOWTO (R_V850_NONE, /* Type. */
897 0, /* Rightshift. */
898 0, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 2, /* Size. */
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 1, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 4, /* Size. */
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 2, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 4, /* Size. */
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 4, /* Size. */
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 4, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 4, /* Size. */
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 2, /* Size. */
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 4, /* Size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size. */
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 2, /* Size. */
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 2, /* size. */
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 2, /* size. */
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 2, /* size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size. */
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 4, /* size */
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 4, /* size */
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 4, /* size */
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 4, /* size */
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 4, /* size */
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 2, /* size */
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 2, /* size */
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, 1, 8, 0, dont, false, generic),
1766 V800_RELOC (R_V810_HWORD, 2, 16, 0, dont, false, generic),
1767 V800_RELOC (R_V810_WORD, 4, 32, 0, dont, false, generic),
1768 V800_RELOC (R_V810_WLO, 2, 16, 0, dont, false, generic),
1769 V800_RELOC (R_V810_WHI, 2, 16, 0, dont, false, generic),
1770 V800_RELOC (R_V810_WHI1, 2, 16, 0, dont, false, generic),
1771 V800_RELOC (R_V810_GPBYTE, 1, 8, 0, dont, false, v850),
1772 V800_RELOC (R_V810_GPHWORD, 2, 16, 0, dont, false, v850),
1773 V800_RELOC (R_V810_GPWORD, 4, 32, 0, dont, false, v850),
1774 V800_RELOC (R_V810_GPWLO, 2, 16, 0, dont, false, v850),
1775 V800_RELOC (R_V810_GPWHI, 2, 16, 0, dont, false, v850),
1776 V800_RELOC (R_V810_GPWHI1, 2, 16, 0, dont, false, v850),
1777 V800_RELOC (R_V850_HWLO, 2, 16, 0, dont, false, generic),
1778 V800_EMPTY (R_V810_reserved1),
1779 V800_RELOC (R_V850_EP7BIT, 1, 7, 0, unsigned, false, v850),
1780 V800_RELOC (R_V850_EPHBYTE, 1, 8, 1, unsigned, false, v850),
1781 V800_RELOC (R_V850_EPWBYTE, 1, 8, 2, unsigned, false, v850),
1782 V800_RELOC (R_V850_REGHWLO, 2, 16, 0, dont, false, v850),
1783 V800_EMPTY (R_V810_reserved2),
1784 V800_RELOC (R_V850_GPHWLO, 2, 16, 0, dont, false, v850),
1785 V800_EMPTY (R_V810_reserved3),
1786 V800_RELOC (R_V850_PCR22, 4, 22, 0, signed, true, generic),
1787 V800_RELOC (R_V850_BLO, 4, 24, 0, dont, false, v850),
1788 V800_RELOC (R_V850_EP4BIT, 1, 4, 0, unsigned, false, v850),
1789 V800_RELOC (R_V850_EP5BIT, 1, 5, 0, unsigned, false, v850),
1790 V800_RELOC (R_V850_REGBLO, 4, 24, 0, dont, false, v850),
1791 V800_RELOC (R_V850_GPBLO, 4, 24, 0, dont, false, v850),
1792 V800_RELOC (R_V810_WLO_1, 2, 16, 0, dont, false, v850),
1793 V800_RELOC (R_V810_GPWLO_1, 2, 16, 0, signed, false, v850),
1794 V800_RELOC (R_V850_BLO_1, 4, 16, 0, signed, false, v850),
1795 V800_RELOC (R_V850_HWLO_1, 2, 16, 0, signed, false, v850),
1796 V800_EMPTY (R_V810_reserved4),
1797 V800_RELOC (R_V850_GPBLO_1, 4, 16, 1, signed, false, v850),
1798 V800_RELOC (R_V850_GPHWLO_1, 2, 16, 1, signed, false, v850),
1799 V800_EMPTY (R_V810_reserved5),
1800 V800_RELOC (R_V850_EPBLO, 4, 16, 1, signed, false, v850),
1801 V800_RELOC (R_V850_EPHWLO, 2, 16, 1, signed, false, v850),
1802 V800_EMPTY (R_V810_reserved6),
1803 V800_RELOC (R_V850_EPWLO_N, 2, 16, 1, signed, false, v850),
1804 V800_RELOC (R_V850_PC32, 4, 32, 1, signed, true, v850),
1805 V800_RELOC (R_V850_W23BIT, 4, 23, 1, signed, false, v850),
1806 V800_RELOC (R_V850_GPW23BIT, 4, 23, 1, signed, false, v850),
1807 V800_RELOC (R_V850_EPW23BIT, 4, 23, 1, signed, false, v850),
1808 V800_RELOC (R_V850_B23BIT, 4, 23, 1, signed, false, v850),
1809 V800_RELOC (R_V850_GPB23BIT, 4, 23, 1, signed, false, v850),
1810 V800_RELOC (R_V850_EPB23BIT, 4, 23, 1, signed, false, v850),
1811 V800_RELOC (R_V850_PC16U, 2, 16, 1, unsigned, true, generic),
1812 V800_RELOC (R_V850_PC17, 4, 17, 1, signed, true, generic),
1813 V800_RELOC (R_V850_DW8, 4, 8, 2, signed, false, v850),
1814 V800_RELOC (R_V850_GPDW8, 4, 8, 2, signed, false, v850),
1815 V800_RELOC (R_V850_EPDW8, 4, 8, 2, signed, false, v850),
1816 V800_RELOC (R_V850_PC9, 2, 9, 3, signed, true, v850),
1817 V800_RELOC (R_V810_REGBYTE, 1, 8, 0, dont, false, v850),
1818 V800_RELOC (R_V810_REGHWORD, 2, 16, 0, dont, false, v850),
1819 V800_RELOC (R_V810_REGWORD, 4, 32, 0, dont, false, v850),
1820 V800_RELOC (R_V810_REGWLO, 2, 16, 0, dont, false, v850),
1821 V800_RELOC (R_V810_REGWHI, 2, 16, 0, dont, false, v850),
1822 V800_RELOC (R_V810_REGWHI1, 2, 16, 0, dont, false, v850),
1823 V800_RELOC (R_V850_REGW23BIT, 4, 23, 1, signed, false, v850),
1824 V800_RELOC (R_V850_REGB23BIT, 4, 23, 1, signed, false, v850),
1825 V800_RELOC (R_V850_REGDW8, 4, 8, 2, signed, false, v850),
1826 V800_RELOC (R_V810_EPBYTE, 1, 8, 0, dont, false, v850),
1827 V800_RELOC (R_V810_EPHWORD, 2, 16, 0, dont, false, v850),
1828 V800_RELOC (R_V810_EPWORD, 4, 32, 0, dont, false, v850),
1829 V800_RELOC (R_V850_WLO23, 4, 32, 1, dont, false, v850),
1830 V800_RELOC (R_V850_WORD_E, 4, 32, 1, dont, false, v850),
1831 V800_RELOC (R_V850_REGWORD_E, 4, 32, 1, dont, false, v850),
1832 V800_RELOC (R_V850_WORD, 4, 32, 0, dont, false, v850),
1833 V800_RELOC (R_V850_GPWORD, 4, 32, 0, dont, false, v850),
1834 V800_RELOC (R_V850_REGWORD, 4, 32, 0, dont, false, v850),
1835 V800_RELOC (R_V850_EPWORD, 4, 32, 0, dont, false, v850),
1836 V800_RELOC (R_V810_TPBYTE, 1, 8, 0, dont, false, v850),
1837 V800_RELOC (R_V810_TPHWORD, 2, 16, 0, dont, false, v850),
1838 V800_RELOC (R_V810_TPWORD, 4, 32, 0, dont, false, v850),
1839 V800_RELOC (R_V810_TPWLO, 2, 16, 0, dont, false, v850),
1840 V800_RELOC (R_V810_TPWHI, 2, 16, 0, dont, false, v850),
1841 V800_RELOC (R_V810_TPWHI1, 2, 16, 0, dont, false, v850),
1842 V800_RELOC (R_V850_TPHWLO, 2, 16, 1, dont, false, v850),
1843 V800_RELOC (R_V850_TPBLO, 4, 24, 0, dont, false, v850),
1844 V800_RELOC (R_V810_TPWLO_1, 2, 16, 0, signed, false, v850),
1845 V800_RELOC (R_V850_TPBLO_1, 4, 16, 0, signed, false, v850),
1846 V800_RELOC (R_V850_TPHWLO_1, 2, 16, 0, signed, false, v850),
1847 V800_RELOC (R_V850_TP23BIT, 4, 23, 0, signed, false, v850),
1848 V800_RELOC (R_V850_TPW23BIT, 4, 23, 0, signed, false, v850),
1849 V800_RELOC (R_V850_TPDW8, 4, 8, 0, signed, false, v850)
1850 };
1851 \f
1852 /* Map a bfd relocation into the appropriate howto structure. */
1853
1854 static reloc_howto_type *
1855 v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1856 bfd_reloc_code_real_type code)
1857 {
1858 unsigned int i;
1859
1860 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
1861 if (v850_elf_reloc_map[i].bfd_reloc_val == code)
1862 {
1863 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
1864
1865 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
1866
1867 return v850_elf_howto_table + elf_reloc_val;
1868 }
1869
1870 return NULL;
1871 }
1872
1873 static reloc_howto_type *
1874 v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1875 const char *r_name)
1876 {
1877 unsigned int i;
1878
1879 for (i = 0;
1880 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
1881 i++)
1882 if (v850_elf_howto_table[i].name != NULL
1883 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
1884 return &v850_elf_howto_table[i];
1885
1886 return NULL;
1887 }
1888 \f
1889 /* Set the howto pointer for an V850 ELF reloc. */
1890
1891 static bool
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
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 \f
1933 static bool
1934 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1935 {
1936 if (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1937 return true;
1938 if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')
1939 return true;
1940 return false;
1941 }
1942
1943 static bool
1944 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1945 {
1946 return v850_elf_is_local_label_name (abfd, sym->name);
1947 }
1948 \f
1949 /* We overload some of the bfd_reloc error codes for own purposes. */
1950 #define bfd_reloc_gp_not_found bfd_reloc_other
1951 #define bfd_reloc_ep_not_found bfd_reloc_continue
1952 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1953
1954 /* Perform a relocation as part of a final link. */
1955
1956 static bfd_reloc_status_type
1957 v850_elf_final_link_relocate (reloc_howto_type *howto,
1958 bfd *input_bfd,
1959 bfd *output_bfd ATTRIBUTE_UNUSED,
1960 asection *input_section,
1961 bfd_byte *contents,
1962 bfd_vma offset,
1963 bfd_vma value,
1964 bfd_vma addend,
1965 struct bfd_link_info *info,
1966 asection *sym_sec,
1967 int is_local ATTRIBUTE_UNUSED)
1968 {
1969 unsigned int r_type = howto->type;
1970 bfd_byte *hit_data = contents + offset;
1971
1972 /* Adjust the value according to the relocation. */
1973 switch (r_type)
1974 {
1975 case R_V850_PC9:
1976 case R_V850_9_PCREL:
1977 value -= (input_section->output_section->vma
1978 + input_section->output_offset);
1979 value -= offset;
1980 break;
1981
1982 case R_V850_PC16U:
1983 case R_V850_16_PCREL:
1984 value -= (input_section->output_section->vma
1985 + input_section->output_offset
1986 + offset);
1987
1988 /* If the sign extension will corrupt the value then we have overflowed. */
1989 if ((value & 0xffff0000) != 0xffff0000)
1990 return bfd_reloc_overflow;
1991
1992 break;
1993
1994 case R_V850_PC17:
1995 case R_V850_17_PCREL:
1996 value -= (input_section->output_section->vma
1997 + input_section->output_offset
1998 + offset);
1999
2000 /* If the sign extension will corrupt the value then we have overflowed. */
2001 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
2002 return bfd_reloc_overflow;
2003
2004 value = SEXT17 (value);
2005 break;
2006
2007 case R_V850_PCR22:
2008 case R_V850_22_PCREL:
2009 value -= (input_section->output_section->vma
2010 + input_section->output_offset
2011 + offset);
2012
2013 /* If the sign extension will corrupt the value then we have overflowed. */
2014 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2015 return bfd_reloc_overflow;
2016
2017 /* Only the bottom 22 bits of the PC are valid. */
2018 value = SEXT22 (value);
2019 break;
2020
2021 case R_V850_PC32:
2022 case R_V850_32_PCREL:
2023 value -= (input_section->output_section->vma
2024 + input_section->output_offset
2025 + offset);
2026 break;
2027
2028 case R_V850_32_ABS:
2029 case R_V850_23:
2030 case R_V850_HI16_S:
2031 case R_V850_HI16:
2032 case R_V850_LO16:
2033 case R_V850_LO16_S1:
2034 case R_V850_LO16_SPLIT_OFFSET:
2035 case R_V850_16:
2036 case R_V850_ABS32:
2037 case R_V850_8:
2038 case R_V810_BYTE:
2039 case R_V810_HWORD:
2040 case R_V810_WORD:
2041 case R_V810_WLO:
2042 case R_V810_WHI:
2043 case R_V810_WHI1:
2044 case R_V810_WLO_1:
2045 case R_V850_WLO23:
2046 case R_V850_BLO:
2047 break;
2048
2049 case R_V850_ZDA_15_16_OFFSET:
2050 case R_V850_ZDA_16_16_OFFSET:
2051 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2052 if (sym_sec == NULL)
2053 return bfd_reloc_undefined;
2054
2055 value -= sym_sec->output_section->vma;
2056 break;
2057
2058 case R_V850_SDA_15_16_OFFSET:
2059 case R_V850_SDA_16_16_OFFSET:
2060 case R_V850_SDA_16_16_SPLIT_OFFSET:
2061 case R_V810_GPWLO_1:
2062 {
2063 unsigned long gp;
2064 struct bfd_link_hash_entry * h;
2065
2066 if (sym_sec == NULL)
2067 return bfd_reloc_undefined;
2068
2069 /* Get the value of __gp. */
2070 h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
2071 if (h == NULL
2072 || h->type != bfd_link_hash_defined)
2073 return bfd_reloc_gp_not_found;
2074
2075 gp = (h->u.def.value
2076 + h->u.def.section->output_section->vma
2077 + h->u.def.section->output_offset);
2078
2079 value -= sym_sec->output_section->vma;
2080 value -= (gp - sym_sec->output_section->vma);
2081 }
2082 break;
2083
2084 case R_V850_TDA_4_4_OFFSET:
2085 case R_V850_TDA_4_5_OFFSET:
2086 case R_V850_TDA_7_7_OFFSET:
2087 case R_V850_TDA_7_8_OFFSET:
2088 case R_V850_TDA_6_8_OFFSET:
2089 case R_V850_TDA_16_16_OFFSET:
2090 {
2091 unsigned long ep;
2092 struct bfd_link_hash_entry * h;
2093
2094 /* Get the value of __ep. */
2095 h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
2096 if (h == NULL
2097 || h->type != bfd_link_hash_defined)
2098 return bfd_reloc_ep_not_found;
2099
2100 ep = (h->u.def.value
2101 + h->u.def.section->output_section->vma
2102 + h->u.def.section->output_offset);
2103
2104 value -= ep;
2105 }
2106 break;
2107
2108 case R_V850_CALLT_6_7_OFFSET:
2109 {
2110 unsigned long ctbp;
2111 struct bfd_link_hash_entry * h;
2112
2113 /* Get the value of __ctbp. */
2114 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
2115 if (h == NULL
2116 || h->type != bfd_link_hash_defined)
2117 return bfd_reloc_ctbp_not_found;
2118
2119 ctbp = (h->u.def.value
2120 + h->u.def.section->output_section->vma
2121 + h->u.def.section->output_offset);
2122 value -= ctbp;
2123 }
2124 break;
2125
2126 case R_V850_CALLT_15_16_OFFSET:
2127 case R_V850_CALLT_16_16_OFFSET:
2128 {
2129 unsigned long ctbp;
2130 struct bfd_link_hash_entry * h;
2131
2132 if (sym_sec == NULL)
2133 return bfd_reloc_undefined;
2134
2135 /* Get the value of __ctbp. */
2136 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
2137 if (h == NULL
2138 || h->type != bfd_link_hash_defined)
2139 return bfd_reloc_ctbp_not_found;
2140
2141 ctbp = (h->u.def.value
2142 + h->u.def.section->output_section->vma
2143 + h->u.def.section->output_offset);
2144
2145 value -= sym_sec->output_section->vma;
2146 value -= (ctbp - sym_sec->output_section->vma);
2147 }
2148 break;
2149
2150 case R_V850_NONE:
2151 case R_V810_NONE:
2152 case R_V850_GNU_VTINHERIT:
2153 case R_V850_GNU_VTENTRY:
2154 case R_V850_LONGCALL:
2155 case R_V850_LONGJUMP:
2156 case R_V850_ALIGN:
2157 return bfd_reloc_ok;
2158
2159 default:
2160 #ifdef DEBUG
2161 _bfd_error_handler ("%pB: unsupported relocation type %#x",
2162 input_bfd, r_type);
2163 #endif
2164 return bfd_reloc_notsupported;
2165 }
2166
2167 /* Perform the relocation. */
2168 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2169 }
2170 \f
2171 /* Relocate an V850 ELF section. */
2172
2173 static int
2174 v850_elf_relocate_section (bfd *output_bfd,
2175 struct bfd_link_info *info,
2176 bfd *input_bfd,
2177 asection *input_section,
2178 bfd_byte *contents,
2179 Elf_Internal_Rela *relocs,
2180 Elf_Internal_Sym *local_syms,
2181 asection **local_sections)
2182 {
2183 Elf_Internal_Shdr *symtab_hdr;
2184 struct elf_link_hash_entry **sym_hashes;
2185 Elf_Internal_Rela *rel;
2186 Elf_Internal_Rela *relend;
2187
2188 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2189 sym_hashes = elf_sym_hashes (input_bfd);
2190
2191 /* Reset the list of remembered HI16S relocs to empty. */
2192 free_hi16s = previous_hi16s;
2193 previous_hi16s = NULL;
2194 hi16s_counter = 0;
2195
2196 rel = relocs;
2197 relend = relocs + input_section->reloc_count;
2198 for (; rel < relend; rel++)
2199 {
2200 unsigned int r_type;
2201 reloc_howto_type *howto;
2202 unsigned long r_symndx;
2203 Elf_Internal_Sym *sym;
2204 asection *sec;
2205 struct elf_link_hash_entry *h;
2206 bfd_vma relocation;
2207 bfd_reloc_status_type r;
2208
2209 r_symndx = ELF32_R_SYM (rel->r_info);
2210 r_type = ELF32_R_TYPE (rel->r_info);
2211
2212 if (r_type == R_V850_GNU_VTENTRY
2213 || r_type == R_V850_GNU_VTINHERIT)
2214 continue;
2215
2216 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2217 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2218 else
2219 howto = v850_elf_howto_table + r_type;
2220
2221 BFD_ASSERT (r_type == howto->type);
2222
2223 h = NULL;
2224 sym = NULL;
2225 sec = NULL;
2226 if (r_symndx < symtab_hdr->sh_info)
2227 {
2228 sym = local_syms + r_symndx;
2229 sec = local_sections[r_symndx];
2230 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2231 }
2232 else
2233 {
2234 bool unresolved_reloc, warned, ignored;
2235
2236 /* Note - this check is delayed until now as it is possible and
2237 valid to have a file without any symbols but with relocs that
2238 can be processed. */
2239 if (sym_hashes == NULL)
2240 {
2241 info->callbacks->warning
2242 (info, "no hash table available",
2243 NULL, input_bfd, input_section, (bfd_vma) 0);
2244
2245 return false;
2246 }
2247
2248 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2249 r_symndx, symtab_hdr, sym_hashes,
2250 h, sec, relocation,
2251 unresolved_reloc, warned, ignored);
2252 }
2253
2254 if (sec != NULL && discarded_section (sec))
2255 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2256 rel, 1, relend, howto, 0, contents);
2257
2258 if (bfd_link_relocatable (info))
2259 continue;
2260
2261 /* FIXME: We should use the addend, but the COFF relocations don't. */
2262 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2263 input_section,
2264 contents, rel->r_offset,
2265 relocation, rel->r_addend,
2266 info, sec, h == NULL);
2267
2268 if (r != bfd_reloc_ok)
2269 {
2270 const char * name;
2271 const char * msg = NULL;
2272
2273 if (h != NULL)
2274 name = h->root.root.string;
2275 else
2276 {
2277 name = (bfd_elf_string_from_elf_section
2278 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2279 if (name == NULL || *name == '\0')
2280 name = bfd_section_name (sec);
2281 }
2282
2283 switch ((int) r)
2284 {
2285 case bfd_reloc_overflow:
2286 (*info->callbacks->reloc_overflow)
2287 (info, (h ? &h->root : NULL), name, howto->name,
2288 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2289 break;
2290
2291 case bfd_reloc_undefined:
2292 (*info->callbacks->undefined_symbol)
2293 (info, name, input_bfd, input_section, rel->r_offset, true);
2294 break;
2295
2296 case bfd_reloc_outofrange:
2297 msg = _("internal error: out of range error");
2298 goto common_error;
2299
2300 case bfd_reloc_notsupported:
2301 msg = _("internal error: unsupported relocation error");
2302 goto common_error;
2303
2304 case bfd_reloc_dangerous:
2305 msg = _("internal error: dangerous relocation");
2306 goto common_error;
2307
2308 case bfd_reloc_gp_not_found:
2309 msg = _("could not locate special linker symbol __gp");
2310 goto common_error;
2311
2312 case bfd_reloc_ep_not_found:
2313 msg = _("could not locate special linker symbol __ep");
2314 goto common_error;
2315
2316 case bfd_reloc_ctbp_not_found:
2317 msg = _("could not locate special linker symbol __ctbp");
2318 goto common_error;
2319
2320 default:
2321 msg = _("internal error: unknown error");
2322 /* fall through */
2323
2324 common_error:
2325 (*info->callbacks->warning) (info, msg, name, input_bfd,
2326 input_section, rel->r_offset);
2327 break;
2328 }
2329 }
2330 }
2331
2332 return true;
2333 }
2334
2335 static asection *
2336 v850_elf_gc_mark_hook (asection *sec,
2337 struct bfd_link_info *info,
2338 Elf_Internal_Rela *rel,
2339 struct elf_link_hash_entry *h,
2340 Elf_Internal_Sym *sym)
2341 {
2342 if (h != NULL)
2343 switch (ELF32_R_TYPE (rel->r_info))
2344 {
2345 case R_V850_GNU_VTINHERIT:
2346 case R_V850_GNU_VTENTRY:
2347 return NULL;
2348 }
2349
2350 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2351 }
2352
2353 static void
2354 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2355 {
2356 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2357
2358 bfd_put_32 (abfd, 4, data + 0);
2359 bfd_put_32 (abfd, 4, data + 4);
2360 bfd_put_32 (abfd, note, data + 8);
2361 memcpy (data + 12, V850_NOTE_NAME, 4);
2362 bfd_put_32 (abfd, val, data + 16);
2363 }
2364
2365 /* Create the note section if not already present. This is done early so
2366 that the linker maps the sections to the right place in the output. */
2367
2368 static asection *
2369 v850_elf_make_note_section (bfd * abfd)
2370 {
2371 asection *s;
2372 bfd_byte *data;
2373 flagword flags;
2374 enum v850_notes id;
2375
2376 /* Make the note section. */
2377 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2378
2379 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2380 if (s == NULL)
2381 return NULL;
2382
2383 if (!bfd_set_section_alignment (s, 2))
2384 return NULL;
2385
2386 /* Allocate space for all known notes. */
2387 if (!bfd_set_section_size (s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2388 return NULL;
2389
2390 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2391 if (data == NULL)
2392 return NULL;
2393
2394 s->contents = data;
2395
2396 /* Provide default (= uninitilaised) values for all of the notes. */
2397 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2398 v850_set_note (abfd, s, id, 0);
2399
2400 return s;
2401 }
2402
2403 /* Create the note section if not already present. This is done early so
2404 that the linker maps the sections to the right place in the output. */
2405
2406 bool
2407 v850_elf_create_sections (struct bfd_link_info * info)
2408 {
2409 bfd * ibfd;
2410
2411 /* If we already have a note section, do not make another. */
2412 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2413 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2414 return true;
2415
2416 return v850_elf_make_note_section (info->input_bfds) != NULL;
2417 }
2418
2419 bool
2420 v850_elf_set_note (bfd * abfd, unsigned int note, unsigned int val)
2421 {
2422 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2423
2424 if (val > 2)
2425 /* At the moment, no known note has a value over 2. */
2426 return false;
2427
2428 if (notes == NULL)
2429 notes = v850_elf_make_note_section (abfd);
2430 if (notes == NULL)
2431 return false;
2432
2433 v850_set_note (abfd, notes, note, val);
2434 return true;
2435 }
2436
2437 /* Copy a v850 note section from one object module to another. */
2438
2439 static void
2440 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2441 {
2442 asection * onotes;
2443 asection * inotes;
2444
2445 /* If the output bfd does not have a note section, then
2446 skip the merge. The normal input to output section
2447 copying will take care of everythng for us. */
2448 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2449 return;
2450
2451 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2452 return;
2453
2454 if (bfd_section_size (inotes) == bfd_section_size (onotes))
2455 {
2456 bfd_byte * icont;
2457 bfd_byte * ocont;
2458
2459 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2460 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2461
2462 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2463 /* If the output is being stripped then it is possible for
2464 the notes section to disappear. In this case do nothing. */
2465 return;
2466
2467 /* Copy/overwrite notes from the input to the output. */
2468 memcpy (ocont, icont, bfd_section_size (onotes));
2469 }
2470 }
2471
2472 /* Copy backend specific data from one object module to another. */
2473
2474 static bool
2475 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2476 {
2477 v850_elf_copy_notes (ibfd, obfd);
2478 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2479 }
2480 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2481
2482 static bool
2483 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2484 {
2485 asection * onotes;
2486 asection * inotes;
2487 bool result = true;
2488
2489 /* If the output bfd does not have a note section, then
2490 skip the merge. The normal input to output section
2491 copying will take care of everythng for us. */
2492 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2493 return true;
2494
2495 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2496 {
2497 enum v850_notes id;
2498 bfd_byte * icont;
2499 bfd_byte * ocont;
2500
2501 BFD_ASSERT (bfd_section_size (inotes) == bfd_section_size (onotes));
2502
2503 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2504 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2505
2506 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2507 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2508
2509 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2510 {
2511 unsigned int ival;
2512 unsigned int oval;
2513 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2514 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2515
2516 ival = bfd_get_32 (ibfd, idata);
2517 oval = bfd_get_32 (obfd, odata);
2518
2519 if (ival == 0 || ival == oval)
2520 continue;
2521
2522 if (oval == 0)
2523 {
2524 bfd_put_32 (obfd, ival, odata);
2525 v850_set_note (obfd, onotes, id, ival);
2526 continue;
2527 }
2528
2529 /* We have a mismatch. The ABI defines how to handle
2530 this siutation on a per note type basis. */
2531 switch (id)
2532 {
2533 case V850_NOTE_ALIGNMENT:
2534 if (oval == EF_RH850_DATA_ALIGN4)
2535 {
2536 _bfd_error_handler
2537 /* xgettext:c-format */
2538 (_("error: %pB needs 8-byte alignment but %pB is set for 4-byte alignment"),
2539 ibfd, obfd);
2540 result = false;
2541 }
2542 else
2543 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2544 Leave the obfd alignment as it is. */
2545 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2546
2547 break;
2548
2549 case V850_NOTE_DATA_SIZE:
2550 if (oval == EF_RH850_DOUBLE32)
2551 {
2552 _bfd_error_handler
2553 /* xgettext:c-format */
2554 (_("error: %pB uses 64-bit doubles but "
2555 "%pB uses 32-bit doubles"), ibfd, obfd);
2556 result = false;
2557 }
2558 else
2559 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2560 This is acceptable. Honest, that is what the ABI says. */
2561 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2562 break;
2563
2564 case V850_NOTE_FPU_INFO:
2565 if (oval == EF_RH850_FPU20)
2566 {
2567 _bfd_error_handler
2568 /* xgettext:c-format */
2569 (_("error: %pB uses FPU-3.0 but %pB only supports FPU-2.0"),
2570 ibfd, obfd);
2571 result = false;
2572 }
2573 else
2574 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2575 BFD_ASSERT (oval == EF_RH850_FPU30);
2576
2577 break;
2578
2579 default:
2580 /* None of the other conflicts matter.
2581 Stick with the current output values. */
2582 break;
2583 }
2584 }
2585
2586 /* FIXME: We should also check for conflicts between the notes
2587 and the EF flags in the ELF header. */
2588 }
2589
2590 return result;
2591 }
2592
2593 static void
2594 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2595 {
2596 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2597
2598 switch (id)
2599 {
2600 case V850_NOTE_ALIGNMENT:
2601 fprintf (file, _(" alignment of 8-byte entities: "));
2602 switch (value)
2603 {
2604 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2605 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2606 case 0: fprintf (file, _("not set")); break;
2607 default: fprintf (file, _("unknown: %x"), value); break;
2608 }
2609 fputc ('\n', file);
2610 break;
2611
2612 case V850_NOTE_DATA_SIZE:
2613 fprintf (file, _(" size of doubles: "));
2614 switch (value)
2615 {
2616 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2617 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2618 case 0: fprintf (file, _("not set")); break;
2619 default: fprintf (file, _("unknown: %x"), value); break;
2620 }
2621 fputc ('\n', file);
2622 break;
2623
2624 case V850_NOTE_FPU_INFO:
2625 fprintf (file, _(" FPU support required: "));
2626 switch (value)
2627 {
2628 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2629 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2630 case 0: fprintf (file, _("none")); break;
2631 default: fprintf (file, _("unknown: %x"), value); break;
2632 }
2633 fputc ('\n', file);
2634 break;
2635
2636 case V850_NOTE_SIMD_INFO:
2637 fprintf (file, _("SIMD use: "));
2638 switch (value)
2639 {
2640 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2641 case 0: fprintf (file, _("no")); break;
2642 default: fprintf (file, _("unknown: %x"), value); break;
2643 }
2644 fputc ('\n', file);
2645 break;
2646
2647 case V850_NOTE_CACHE_INFO:
2648 fprintf (file, _("CACHE use: "));
2649 switch (value)
2650 {
2651 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2652 case 0: fprintf (file, _("no")); break;
2653 default: fprintf (file, _("unknown: %x"), value); break;
2654 }
2655 fputc ('\n', file);
2656 break;
2657
2658 case V850_NOTE_MMU_INFO:
2659 fprintf (file, _("MMU use: "));
2660 switch (value)
2661 {
2662 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2663 case 0: fprintf (file, _("no")); break;
2664 default: fprintf (file, _("unknown: %x"), value); break;
2665 }
2666 fputc ('\n', file);
2667 break;
2668
2669 default:
2670 BFD_ASSERT (0);
2671 }
2672 }
2673
2674 static void
2675 v850_elf_print_notes (bfd * abfd, FILE * file)
2676 {
2677 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2678 enum v850_notes id;
2679
2680 if (notes == NULL || notes->contents == NULL)
2681 return;
2682
2683 BFD_ASSERT (bfd_section_size (notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2684
2685 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2686 print_v850_note (abfd, file, notes->contents, id);
2687 }
2688
2689 /* Set the right machine number and architecture. */
2690
2691 static bool
2692 v850_elf_object_p (bfd *abfd)
2693 {
2694 enum bfd_architecture arch;
2695 unsigned long mach;
2696
2697 switch (elf_elfheader (abfd)->e_machine)
2698 {
2699 case EM_V800:
2700 arch = bfd_arch_v850_rh850;
2701 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2702 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2703 break;
2704
2705 case EM_CYGNUS_V850:
2706 case EM_V850:
2707 arch = bfd_arch_v850;
2708 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2709 {
2710 default:
2711 case E_V850_ARCH: mach = bfd_mach_v850; break;
2712 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2713 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2714 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2715 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2716 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2717 }
2718 break;
2719
2720 default:
2721 return false;
2722 }
2723
2724 return bfd_default_set_arch_mach (abfd, arch, mach);
2725 }
2726
2727 /* Store the machine number in the flags field. */
2728
2729 static bool
2730 v850_elf_final_write_processing (bfd *abfd)
2731 {
2732 unsigned long val;
2733
2734 switch (bfd_get_arch (abfd))
2735 {
2736 case bfd_arch_v850_rh850:
2737 val = EF_RH850_ABI;
2738 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2739 val |= EF_V800_850E3;
2740 elf_elfheader (abfd)->e_flags |= val;
2741 break;
2742
2743 case bfd_arch_v850:
2744 switch (bfd_get_mach (abfd))
2745 {
2746 default:
2747 case bfd_mach_v850: val = E_V850_ARCH; break;
2748 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2749 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2750 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2751 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2752 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2753 }
2754 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2755 elf_elfheader (abfd)->e_flags |= val;
2756 break;
2757 default:
2758 break;
2759 }
2760 return _bfd_elf_final_write_processing (abfd);
2761 }
2762
2763 /* Function to keep V850 specific file flags. */
2764
2765 static bool
2766 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2767 {
2768 BFD_ASSERT (!elf_flags_init (abfd)
2769 || elf_elfheader (abfd)->e_flags == flags);
2770
2771 elf_elfheader (abfd)->e_flags = flags;
2772 elf_flags_init (abfd) = true;
2773 return true;
2774 }
2775
2776 /* Merge backend specific data from an object file
2777 to the output object file when linking. */
2778
2779 static bool
2780 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2781 {
2782 bfd *obfd = info->output_bfd;
2783 flagword out_flags;
2784 flagword in_flags;
2785 bool result = true;
2786
2787 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2788 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2789 return true;
2790
2791 result &= v850_elf_merge_notes (ibfd, obfd);
2792
2793 in_flags = elf_elfheader (ibfd)->e_flags;
2794 out_flags = elf_elfheader (obfd)->e_flags;
2795
2796 if (! elf_flags_init (obfd))
2797 {
2798 /* If the input is the default architecture then do not
2799 bother setting the flags for the output architecture,
2800 instead allow future merges to do this. If no future
2801 merges ever set these flags then they will retain their
2802 unitialised values, which surprise surprise, correspond
2803 to the default values. */
2804 if (bfd_get_arch_info (ibfd)->the_default)
2805 return true;
2806
2807 elf_flags_init (obfd) = true;
2808 elf_elfheader (obfd)->e_flags = in_flags;
2809
2810 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2811 && bfd_get_arch_info (obfd)->the_default)
2812 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2813
2814 return result;
2815 }
2816
2817 /* Check flag compatibility. */
2818 if (in_flags == out_flags)
2819 return result;
2820
2821 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2822 {
2823 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2824 {
2825 _bfd_error_handler
2826 (_("%pB: architecture mismatch with previous modules"), ibfd);
2827 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2828 }
2829
2830 return result;
2831 }
2832
2833 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2834 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2835 {
2836 /* Allow earlier architecture binaries to be linked with later binaries.
2837 Set the output binary to the later architecture, except for v850e1,
2838 which we set to v850e. */
2839 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2840 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2841 return result;
2842
2843 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2844 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2845 {
2846 elf_elfheader (obfd)->e_flags =
2847 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2848 return result;
2849 }
2850
2851 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2852 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2853 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2854 {
2855 elf_elfheader (obfd)->e_flags =
2856 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2857 return result;
2858 }
2859
2860 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2861 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2862 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2863 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2864 {
2865 elf_elfheader (obfd)->e_flags =
2866 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2867 return result;
2868 }
2869
2870 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2871 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2872 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2873 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2874 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2875 {
2876 elf_elfheader (obfd)->e_flags =
2877 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2878 return result;
2879 }
2880
2881 _bfd_error_handler
2882 (_("%pB: architecture mismatch with previous modules"), ibfd);
2883 }
2884
2885 return result;
2886 }
2887
2888 /* Display the flags field. */
2889
2890 static bool
2891 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2892 {
2893 FILE * file = (FILE *) ptr;
2894
2895 BFD_ASSERT (abfd != NULL && ptr != NULL);
2896
2897 _bfd_elf_print_private_bfd_data (abfd, ptr);
2898
2899 /* xgettext:c-format. */
2900 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2901
2902 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2903 {
2904 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2905 fprintf (file, _("unknown v850 architecture"));
2906 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2907 fprintf (file, _("v850 E3 architecture"));
2908 else
2909 fprintf (file, _("v850 architecture"));
2910 }
2911 else
2912 {
2913 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2914 {
2915 default:
2916 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2917 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2918 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2919 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2920 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2921 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2922 }
2923 }
2924
2925 fputc ('\n', file);
2926
2927 v850_elf_print_notes (abfd, file);
2928
2929 return true;
2930 }
2931
2932 /* V850 ELF uses four common sections. One is the usual one, and the
2933 others are for (small) objects in one of the special data areas:
2934 small, tiny and zero. All the objects are kept together, and then
2935 referenced via the gp register, the ep register or the r0 register
2936 respectively, which yields smaller, faster assembler code. This
2937 approach is copied from elf32-mips.c. */
2938
2939 static asection v850_elf_scom_section;
2940 static const asymbol v850_elf_scom_symbol =
2941 GLOBAL_SYM_INIT (".scommon", &v850_elf_scom_section);
2942 static asection v850_elf_scom_section =
2943 BFD_FAKE_SECTION (v850_elf_scom_section, &v850_elf_scom_symbol,
2944 ".scommon", 0,
2945 SEC_IS_COMMON | SEC_SMALL_DATA | SEC_ALLOC | SEC_DATA);
2946
2947 static asection v850_elf_tcom_section;
2948 static const asymbol v850_elf_tcom_symbol =
2949 GLOBAL_SYM_INIT (".tcommon", &v850_elf_tcom_section);
2950 static asection v850_elf_tcom_section =
2951 BFD_FAKE_SECTION (v850_elf_tcom_section, &v850_elf_tcom_symbol,
2952 ".tcommon", 0,
2953 SEC_IS_COMMON | SEC_SMALL_DATA);
2954
2955 static asection v850_elf_zcom_section;
2956 static const asymbol v850_elf_zcom_symbol =
2957 GLOBAL_SYM_INIT (".zcommon", &v850_elf_zcom_section);
2958 static asection v850_elf_zcom_section =
2959 BFD_FAKE_SECTION (v850_elf_zcom_section, &v850_elf_zcom_symbol,
2960 ".zcommon", 0,
2961 SEC_IS_COMMON | SEC_SMALL_DATA);
2962
2963 /* Given a BFD section, try to locate the
2964 corresponding ELF section index. */
2965
2966 static bool
2967 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2968 asection *sec,
2969 int *retval)
2970 {
2971 if (strcmp (bfd_section_name (sec), ".scommon") == 0)
2972 *retval = SHN_V850_SCOMMON;
2973 else if (strcmp (bfd_section_name (sec), ".tcommon") == 0)
2974 *retval = SHN_V850_TCOMMON;
2975 else if (strcmp (bfd_section_name (sec), ".zcommon") == 0)
2976 *retval = SHN_V850_ZCOMMON;
2977 else
2978 return false;
2979
2980 return true;
2981 }
2982
2983 /* Handle the special V850 section numbers that a symbol may use. */
2984
2985 static void
2986 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2987 {
2988 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2989 unsigned int indx;
2990
2991 indx = elfsym->internal_elf_sym.st_shndx;
2992
2993 /* If the section index is an "ordinary" index, then it may
2994 refer to a v850 specific section created by the assembler.
2995 Check the section's type and change the index it matches.
2996
2997 FIXME: Should we alter the st_shndx field as well ? */
2998
2999 if (indx < elf_numsections (abfd))
3000 switch (elf_elfsections (abfd)[indx]->sh_type)
3001 {
3002 case SHT_V850_SCOMMON:
3003 indx = SHN_V850_SCOMMON;
3004 break;
3005
3006 case SHT_V850_TCOMMON:
3007 indx = SHN_V850_TCOMMON;
3008 break;
3009
3010 case SHT_V850_ZCOMMON:
3011 indx = SHN_V850_ZCOMMON;
3012 break;
3013
3014 default:
3015 break;
3016 }
3017
3018 switch (indx)
3019 {
3020 case SHN_V850_SCOMMON:
3021 asym->section = & v850_elf_scom_section;
3022 asym->value = elfsym->internal_elf_sym.st_size;
3023 break;
3024
3025 case SHN_V850_TCOMMON:
3026 asym->section = & v850_elf_tcom_section;
3027 asym->value = elfsym->internal_elf_sym.st_size;
3028 break;
3029
3030 case SHN_V850_ZCOMMON:
3031 asym->section = & v850_elf_zcom_section;
3032 asym->value = elfsym->internal_elf_sym.st_size;
3033 break;
3034 }
3035 }
3036
3037 /* Hook called by the linker routine which adds symbols from an object
3038 file. We must handle the special v850 section numbers here. */
3039
3040 static bool
3041 v850_elf_add_symbol_hook (bfd *abfd,
3042 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3043 Elf_Internal_Sym *sym,
3044 const char **namep ATTRIBUTE_UNUSED,
3045 flagword *flagsp ATTRIBUTE_UNUSED,
3046 asection **secp,
3047 bfd_vma *valp)
3048 {
3049 unsigned int indx = sym->st_shndx;
3050
3051 /* If the section index is an "ordinary" index, then it may
3052 refer to a v850 specific section created by the assembler.
3053 Check the section's type and change the index it matches.
3054
3055 FIXME: Should we alter the st_shndx field as well ? */
3056
3057 if (indx < elf_numsections (abfd))
3058 switch (elf_elfsections (abfd)[indx]->sh_type)
3059 {
3060 case SHT_V850_SCOMMON:
3061 indx = SHN_V850_SCOMMON;
3062 break;
3063
3064 case SHT_V850_TCOMMON:
3065 indx = SHN_V850_TCOMMON;
3066 break;
3067
3068 case SHT_V850_ZCOMMON:
3069 indx = SHN_V850_ZCOMMON;
3070 break;
3071
3072 default:
3073 break;
3074 }
3075
3076 switch (indx)
3077 {
3078 case SHN_V850_SCOMMON:
3079 *secp = bfd_make_section_old_way (abfd, ".scommon");
3080 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3081 *valp = sym->st_size;
3082 break;
3083
3084 case SHN_V850_TCOMMON:
3085 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3086 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3087 *valp = sym->st_size;
3088 break;
3089
3090 case SHN_V850_ZCOMMON:
3091 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3092 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
3093 *valp = sym->st_size;
3094 break;
3095 }
3096
3097 return true;
3098 }
3099
3100 static int
3101 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3102 const char *name ATTRIBUTE_UNUSED,
3103 Elf_Internal_Sym *sym,
3104 asection *input_sec,
3105 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3106 {
3107 /* If we see a common symbol, which implies a relocatable link, then
3108 if a symbol was in a special common section in an input file, mark
3109 it as a special common in the output file. */
3110
3111 if (sym->st_shndx == SHN_COMMON)
3112 {
3113 if (strcmp (input_sec->name, ".scommon") == 0)
3114 sym->st_shndx = SHN_V850_SCOMMON;
3115 else if (strcmp (input_sec->name, ".tcommon") == 0)
3116 sym->st_shndx = SHN_V850_TCOMMON;
3117 else if (strcmp (input_sec->name, ".zcommon") == 0)
3118 sym->st_shndx = SHN_V850_ZCOMMON;
3119 }
3120
3121 /* The price we pay for using h->other unused bits as flags in the
3122 linker is cleaning up after ourselves. */
3123
3124 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3125 | V850_OTHER_ERROR);
3126
3127 return 1;
3128 }
3129
3130 static bool
3131 v850_elf_section_from_shdr (bfd *abfd,
3132 Elf_Internal_Shdr *hdr,
3133 const char *name,
3134 int shindex)
3135 {
3136 flagword flags;
3137
3138 /* There ought to be a place to keep ELF backend specific flags, but
3139 at the moment there isn't one. We just keep track of the
3140 sections by their name, instead. */
3141
3142 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3143 return false;
3144
3145 flags = 0;
3146 switch (hdr->sh_type)
3147 {
3148 case SHT_V850_SCOMMON:
3149 case SHT_V850_TCOMMON:
3150 case SHT_V850_ZCOMMON:
3151 flags = SEC_IS_COMMON;
3152 }
3153
3154 if ((hdr->sh_flags & SHF_V850_GPREL) != 0)
3155 flags |= SEC_SMALL_DATA;
3156
3157 return (flags == 0
3158 || bfd_set_section_flags (hdr->bfd_section,
3159 hdr->bfd_section->flags | flags));
3160 }
3161
3162 /* Set the correct type for a V850 ELF section. We do this
3163 by the section name, which is a hack, but ought to work. */
3164
3165 static bool
3166 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3167 Elf_Internal_Shdr *hdr,
3168 asection *sec)
3169 {
3170 const char * name;
3171
3172 name = bfd_section_name (sec);
3173
3174 if (strcmp (name, ".scommon") == 0)
3175 hdr->sh_type = SHT_V850_SCOMMON;
3176 else if (strcmp (name, ".tcommon") == 0)
3177 hdr->sh_type = SHT_V850_TCOMMON;
3178 else if (strcmp (name, ".zcommon") == 0)
3179 hdr->sh_type = SHT_V850_ZCOMMON;
3180 /* Tweak the section type of .note.renesas. */
3181 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3182 {
3183 hdr->sh_type = SHT_RENESAS_INFO;
3184 hdr->sh_entsize = SIZEOF_V850_NOTE;
3185 }
3186
3187 return true;
3188 }
3189
3190 /* Delete some bytes from a section while relaxing. */
3191
3192 static bool
3193 v850_elf_relax_delete_bytes (bfd *abfd,
3194 asection *sec,
3195 bfd_vma addr,
3196 bfd_vma toaddr,
3197 int count)
3198 {
3199 Elf_Internal_Shdr *symtab_hdr;
3200 Elf32_External_Sym *extsyms;
3201 Elf32_External_Sym *esym;
3202 Elf32_External_Sym *esymend;
3203 int sym_index;
3204 unsigned int sec_shndx;
3205 bfd_byte *contents;
3206 Elf_Internal_Rela *irel;
3207 Elf_Internal_Rela *irelend;
3208 struct elf_link_hash_entry *sym_hash;
3209 Elf_External_Sym_Shndx *shndx;
3210
3211 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3212 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3213
3214 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3215
3216 contents = elf_section_data (sec)->this_hdr.contents;
3217
3218 /* The deletion must stop at the next ALIGN reloc for an alignment
3219 power larger than the number of bytes we are deleting. */
3220
3221 /* Actually delete the bytes. */
3222 #if (DEBUG_RELAX & 2)
3223 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3224 sec->name, addr, toaddr, count );
3225 #endif
3226 memmove (contents + addr, contents + addr + count,
3227 toaddr - addr - count);
3228 memset (contents + toaddr-count, 0, count);
3229
3230 /* Adjust all the relocs. */
3231 irel = elf_section_data (sec)->relocs;
3232 irelend = irel + sec->reloc_count;
3233 if (elf_symtab_shndx_list (abfd))
3234 {
3235 Elf_Internal_Shdr *shndx_hdr;
3236
3237 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3238 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3239 }
3240 else
3241 {
3242 shndx = NULL;
3243 }
3244
3245 for (; irel < irelend; irel++)
3246 {
3247 bfd_vma raddr, paddr, symval;
3248 Elf_Internal_Sym isym;
3249
3250 /* Get the new reloc address. */
3251 raddr = irel->r_offset;
3252 if ((raddr >= (addr + count) && raddr < toaddr))
3253 irel->r_offset -= count;
3254
3255 if (raddr >= addr && raddr < addr + count)
3256 {
3257 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3258 (int) R_V850_NONE);
3259 continue;
3260 }
3261
3262 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3263 continue;
3264
3265 bfd_elf32_swap_symbol_in (abfd,
3266 extsyms + ELF32_R_SYM (irel->r_info),
3267 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3268 & isym);
3269
3270 if (isym.st_shndx != sec_shndx)
3271 continue;
3272
3273 /* Get the value of the symbol referred to by the reloc. */
3274 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3275 {
3276 symval = isym.st_value;
3277 #if (DEBUG_RELAX & 2)
3278 {
3279 char * name = bfd_elf_string_from_elf_section
3280 (abfd, symtab_hdr->sh_link, isym.st_name);
3281 fprintf (stderr,
3282 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3283 sec->name, name, isym.st_name,
3284 sec->output_section->vma, sec->output_offset,
3285 isym.st_value, irel->r_addend);
3286 }
3287 #endif
3288 }
3289 else
3290 {
3291 unsigned long indx;
3292 struct elf_link_hash_entry * h;
3293
3294 /* An external symbol. */
3295 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3296
3297 h = elf_sym_hashes (abfd) [indx];
3298 BFD_ASSERT (h != NULL);
3299
3300 symval = h->root.u.def.value;
3301 #if (DEBUG_RELAX & 2)
3302 fprintf (stderr,
3303 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3304 sec->name, h->root.root.string, h->root.u.def.value,
3305 sec->output_section->vma, sec->output_offset, irel->r_addend);
3306 #endif
3307 }
3308
3309 paddr = symval + irel->r_addend;
3310
3311 if ( (symval >= addr + count && symval < toaddr)
3312 && (paddr < addr + count || paddr >= toaddr))
3313 irel->r_addend += count;
3314 else if ( (symval < addr + count || symval >= toaddr)
3315 && (paddr >= addr + count && paddr < toaddr))
3316 irel->r_addend -= count;
3317 }
3318
3319 /* Adjust the local symbols defined in this section. */
3320 esym = extsyms;
3321 esymend = esym + symtab_hdr->sh_info;
3322
3323 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3324 {
3325 Elf_Internal_Sym isym;
3326
3327 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3328
3329 if (isym.st_shndx == sec_shndx
3330 && isym.st_value >= addr + count
3331 && isym.st_value < toaddr)
3332 {
3333 isym.st_value -= count;
3334
3335 if (isym.st_value + isym.st_size >= toaddr)
3336 isym.st_size += count;
3337
3338 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3339 }
3340 else if (isym.st_shndx == sec_shndx
3341 && isym.st_value < addr + count)
3342 {
3343 if (isym.st_value+isym.st_size >= addr + count
3344 && isym.st_value+isym.st_size < toaddr)
3345 isym.st_size -= count;
3346
3347 if (isym.st_value >= addr
3348 && isym.st_value < addr + count)
3349 isym.st_value = addr;
3350
3351 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3352 }
3353 }
3354
3355 /* Now adjust the global symbols defined in this section. */
3356 esym = extsyms + symtab_hdr->sh_info;
3357 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3358
3359 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3360 {
3361 Elf_Internal_Sym isym;
3362
3363 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3364 sym_hash = elf_sym_hashes (abfd) [sym_index];
3365
3366 if (isym.st_shndx == sec_shndx
3367 && ((sym_hash)->root.type == bfd_link_hash_defined
3368 || (sym_hash)->root.type == bfd_link_hash_defweak)
3369 && (sym_hash)->root.u.def.section == sec
3370 && (sym_hash)->root.u.def.value >= addr + count
3371 && (sym_hash)->root.u.def.value < toaddr)
3372 {
3373 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3374 {
3375 isym.st_size += count;
3376 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3377 }
3378
3379 (sym_hash)->root.u.def.value -= count;
3380 }
3381 else if (isym.st_shndx == sec_shndx
3382 && ((sym_hash)->root.type == bfd_link_hash_defined
3383 || (sym_hash)->root.type == bfd_link_hash_defweak)
3384 && (sym_hash)->root.u.def.section == sec
3385 && (sym_hash)->root.u.def.value < addr + count)
3386 {
3387 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3388 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3389 isym.st_size -= count;
3390
3391 if ((sym_hash)->root.u.def.value >= addr
3392 && (sym_hash)->root.u.def.value < addr + count)
3393 (sym_hash)->root.u.def.value = addr;
3394
3395 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3396 }
3397
3398 if (shndx)
3399 ++ shndx;
3400 }
3401
3402 return true;
3403 }
3404
3405 #define NOP_OPCODE (0x0000)
3406 #define MOVHI 0x0640 /* 4byte. */
3407 #define MOVHI_MASK 0x07e0
3408 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3409 #define MOVHI_R2(insn) ((insn) >> 11)
3410 #define MOVEA 0x0620 /* 2byte. */
3411 #define MOVEA_MASK 0x07e0
3412 #define MOVEA_R1(insn) ((insn) & 0x1f)
3413 #define MOVEA_R2(insn) ((insn) >> 11)
3414 #define JARL_4 0x00040780 /* 4byte. */
3415 #define JARL_4_MASK 0xFFFF07FF
3416 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3417 #define ADD_I 0x0240 /* 2byte. */
3418 #define ADD_I_MASK 0x07e0
3419 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3420 #define ADD_R2(insn) ((insn) >> 11)
3421 #define JMP_R 0x0060 /* 2byte. */
3422 #define JMP_R_MASK 0xFFE0
3423 #define JMP_R1(insn) ((insn) & 0x1f)
3424
3425 static bool
3426 v850_elf_relax_section (bfd *abfd,
3427 asection *sec,
3428 struct bfd_link_info *link_info,
3429 bool *again)
3430 {
3431 Elf_Internal_Shdr *symtab_hdr;
3432 Elf_Internal_Rela *internal_relocs;
3433 Elf_Internal_Rela *irel;
3434 Elf_Internal_Rela *irelend;
3435 Elf_Internal_Rela *irelalign = NULL;
3436 Elf_Internal_Sym *isymbuf = NULL;
3437 bfd_byte *contents = NULL;
3438 bfd_vma addr = 0;
3439 bfd_vma toaddr;
3440 int align_pad_size = 0;
3441 bool result = true;
3442
3443 *again = false;
3444
3445 if (bfd_link_relocatable (link_info)
3446 || (sec->flags & SEC_HAS_CONTENTS) == 0
3447 || (sec->flags & SEC_RELOC) == 0
3448 || sec->reloc_count == 0)
3449 return true;
3450
3451 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3452
3453 internal_relocs = (_bfd_elf_link_read_relocs
3454 (abfd, sec, NULL, NULL, link_info->keep_memory));
3455 if (internal_relocs == NULL)
3456 goto error_return;
3457
3458 irelend = internal_relocs + sec->reloc_count;
3459
3460 while (addr < sec->size)
3461 {
3462 toaddr = sec->size;
3463
3464 for (irel = internal_relocs; irel < irelend; irel ++)
3465 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3466 && irel->r_offset > addr
3467 && irel->r_offset < toaddr)
3468 toaddr = irel->r_offset;
3469
3470 #ifdef DEBUG_RELAX
3471 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3472 addr, toaddr, align_pad_size);
3473 #endif
3474 if (irelalign)
3475 {
3476 bfd_vma alignto;
3477 bfd_vma alignmoveto;
3478
3479 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3480 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3481
3482 if (alignmoveto < alignto)
3483 {
3484 bfd_vma i;
3485
3486 align_pad_size = alignto - alignmoveto;
3487 #ifdef DEBUG_RELAX
3488 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3489 alignmoveto, toaddr, align_pad_size);
3490 #endif
3491 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3492 toaddr, align_pad_size))
3493 goto error_return;
3494
3495 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3496 (i + 1) < toaddr; i += 2)
3497 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3498
3499 addr = alignmoveto;
3500 }
3501 else
3502 align_pad_size = 0;
3503 }
3504
3505 for (irel = internal_relocs; irel < irelend; irel++)
3506 {
3507 bfd_vma laddr;
3508 bfd_vma addend;
3509 bfd_vma symval;
3510 int insn[5];
3511 int no_match = -1;
3512 Elf_Internal_Rela *hi_irelfn;
3513 Elf_Internal_Rela *lo_irelfn;
3514 Elf_Internal_Rela *irelcall;
3515 bfd_signed_vma foff;
3516 unsigned int r_type;
3517
3518 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3519 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3520 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3521 continue;
3522
3523 #ifdef DEBUG_RELAX
3524 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3525 irel->r_info,
3526 irel->r_offset,
3527 irel->r_addend );
3528 #endif
3529
3530 /* Get the section contents. */
3531 if (contents == NULL)
3532 {
3533 if (elf_section_data (sec)->this_hdr.contents != NULL)
3534 contents = elf_section_data (sec)->this_hdr.contents;
3535 else
3536 {
3537 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3538 goto error_return;
3539 }
3540 }
3541
3542 /* Read this BFD's local symbols if we haven't done so already. */
3543 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3544 {
3545 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3546 if (isymbuf == NULL)
3547 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3548 symtab_hdr->sh_info, 0,
3549 NULL, NULL, NULL);
3550 if (isymbuf == NULL)
3551 goto error_return;
3552 }
3553
3554 laddr = irel->r_offset;
3555
3556 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3557 {
3558 /* Check code for -mlong-calls output. */
3559 if (laddr + 16 <= (bfd_vma) sec->size)
3560 {
3561 insn[0] = bfd_get_16 (abfd, contents + laddr);
3562 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3563 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3564 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3565 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3566
3567 if ((insn[0] & MOVHI_MASK) != MOVHI
3568 || MOVHI_R1 (insn[0]) != 0)
3569 no_match = 0;
3570
3571 if (no_match < 0
3572 && ((insn[1] & MOVEA_MASK) != MOVEA
3573 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3574 no_match = 1;
3575
3576 if (no_match < 0
3577 && (insn[2] & JARL_4_MASK) != JARL_4)
3578 no_match = 2;
3579
3580 if (no_match < 0
3581 && ((insn[3] & ADD_I_MASK) != ADD_I
3582 || ADD_I5 (insn[3]) != 4
3583 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3584 no_match = 3;
3585
3586 if (no_match < 0
3587 && ((insn[4] & JMP_R_MASK) != JMP_R
3588 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3589 no_match = 4;
3590 }
3591 else
3592 {
3593 _bfd_error_handler
3594 /* xgettext:c-format */
3595 (_("%pB: %#" PRIx64 ": warning: %s points to "
3596 "unrecognized insns"),
3597 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3598 continue;
3599 }
3600
3601 if (no_match >= 0)
3602 {
3603 _bfd_error_handler
3604 /* xgettext:c-format */
3605 (_("%pB: %#" PRIx64 ": warning: %s points to "
3606 "unrecognized insn %#x"),
3607 abfd,
3608 (uint64_t) (irel->r_offset + no_match),
3609 "R_V850_LONGCALL",
3610 insn[no_match]);
3611 continue;
3612 }
3613
3614 /* Get the reloc for the address from which the register is
3615 being loaded. This reloc will tell us which function is
3616 actually being called. */
3617
3618 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3619 {
3620 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3621
3622 if (hi_irelfn->r_offset == laddr + 2
3623 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3624 break;
3625 }
3626
3627 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3628 {
3629 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3630
3631 if (lo_irelfn->r_offset == laddr + 6
3632 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3633 break;
3634 }
3635
3636 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3637 {
3638 r_type = ELF32_R_TYPE (irelcall->r_info);
3639
3640 if (irelcall->r_offset == laddr + 8
3641 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3642 break;
3643 }
3644
3645 if ( hi_irelfn == irelend
3646 || lo_irelfn == irelend
3647 || irelcall == irelend)
3648 {
3649 _bfd_error_handler
3650 /* xgettext:c-format */
3651 (_("%pB: %#" PRIx64 ": warning: %s points to "
3652 "unrecognized reloc"),
3653 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3654
3655 continue;
3656 }
3657
3658 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3659 {
3660 Elf_Internal_Sym * isym;
3661
3662 /* A local symbol. */
3663 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3664
3665 symval = isym->st_value;
3666 }
3667 else
3668 {
3669 unsigned long indx;
3670 struct elf_link_hash_entry * h;
3671
3672 /* An external symbol. */
3673 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3674 h = elf_sym_hashes (abfd)[indx];
3675 BFD_ASSERT (h != NULL);
3676
3677 if ( h->root.type != bfd_link_hash_defined
3678 && h->root.type != bfd_link_hash_defweak)
3679 /* This appears to be a reference to an undefined
3680 symbol. Just ignore it--it will be caught by the
3681 regular reloc processing. */
3682 continue;
3683
3684 symval = h->root.u.def.value;
3685 }
3686
3687 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3688 {
3689 _bfd_error_handler
3690 /* xgettext:c-format */
3691 (_("%pB: %#" PRIx64 ": warning: %s points to "
3692 "unrecognized reloc %#" PRIx64),
3693 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL",
3694 (uint64_t) irelcall->r_offset);
3695 continue;
3696 }
3697
3698 /* Get the value of the symbol referred to by the reloc. */
3699 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3700 {
3701 Elf_Internal_Sym *isym;
3702 asection *sym_sec;
3703
3704 /* A local symbol. */
3705 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3706
3707 if (isym->st_shndx == SHN_UNDEF)
3708 sym_sec = bfd_und_section_ptr;
3709 else if (isym->st_shndx == SHN_ABS)
3710 sym_sec = bfd_abs_section_ptr;
3711 else if (isym->st_shndx == SHN_COMMON)
3712 sym_sec = bfd_com_section_ptr;
3713 else
3714 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3715 symval = (isym->st_value
3716 + sym_sec->output_section->vma
3717 + sym_sec->output_offset);
3718 }
3719 else
3720 {
3721 unsigned long indx;
3722 struct elf_link_hash_entry *h;
3723
3724 /* An external symbol. */
3725 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3726 h = elf_sym_hashes (abfd)[indx];
3727 BFD_ASSERT (h != NULL);
3728
3729 if ( h->root.type != bfd_link_hash_defined
3730 && h->root.type != bfd_link_hash_defweak)
3731 /* This appears to be a reference to an undefined
3732 symbol. Just ignore it--it will be caught by the
3733 regular reloc processing. */
3734 continue;
3735
3736 symval = (h->root.u.def.value
3737 + h->root.u.def.section->output_section->vma
3738 + h->root.u.def.section->output_offset);
3739 }
3740
3741 addend = irel->r_addend;
3742
3743 foff = (symval + addend
3744 - (irel->r_offset
3745 + sec->output_section->vma
3746 + sec->output_offset
3747 + 4));
3748 #ifdef DEBUG_RELAX
3749 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3750 irel->r_offset,
3751 (irel->r_offset
3752 + sec->output_section->vma
3753 + sec->output_offset),
3754 symval, addend, foff);
3755 #endif
3756
3757 if (foff < -0x100000 || foff >= 0x100000)
3758 /* After all that work, we can't shorten this function call. */
3759 continue;
3760
3761 /* For simplicity of coding, we are going to modify the section
3762 contents, the section relocs, and the BFD symbol table. We
3763 must tell the rest of the code not to free up this
3764 information. It would be possible to instead create a table
3765 of changes which have to be made, as is done in coff-mips.c;
3766 that would be more work, but would require less memory when
3767 the linker is run. */
3768 elf_section_data (sec)->relocs = internal_relocs;
3769 elf_section_data (sec)->this_hdr.contents = contents;
3770 symtab_hdr->contents = (bfd_byte *) isymbuf;
3771
3772 /* Replace the long call with a jarl. */
3773 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3774 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3775 else
3776 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3777
3778 addend = 0;
3779
3780 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3781 /* If this needs to be changed because of future relaxing,
3782 it will be handled here like other internal IND12W
3783 relocs. */
3784 bfd_put_32 (abfd,
3785 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3786 contents + irel->r_offset);
3787 else
3788 /* We can't fully resolve this yet, because the external
3789 symbol value may be changed by future relaxing.
3790 We let the final link phase handle it. */
3791 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3792 contents + irel->r_offset);
3793
3794 hi_irelfn->r_info =
3795 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3796 lo_irelfn->r_info =
3797 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3798 irelcall->r_info =
3799 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3800
3801 if (! v850_elf_relax_delete_bytes (abfd, sec,
3802 irel->r_offset + 4, toaddr, 12))
3803 goto error_return;
3804
3805 align_pad_size += 12;
3806 }
3807 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3808 {
3809 /* Check code for -mlong-jumps output. */
3810 if (laddr + 10 <= (bfd_vma) sec->size)
3811 {
3812 insn[0] = bfd_get_16 (abfd, contents + laddr);
3813 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3814 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3815
3816 if ((insn[0] & MOVHI_MASK) != MOVHI
3817 || MOVHI_R1 (insn[0]) != 0)
3818 no_match = 0;
3819
3820 if (no_match < 0
3821 && ((insn[1] & MOVEA_MASK) != MOVEA
3822 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3823 no_match = 1;
3824
3825 if (no_match < 0
3826 && ((insn[2] & JMP_R_MASK) != JMP_R
3827 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3828 no_match = 2;
3829 }
3830 else
3831 {
3832 _bfd_error_handler
3833 /* xgettext:c-format */
3834 (_("%pB: %#" PRIx64 ": warning: %s points to "
3835 "unrecognized insns"),
3836 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3837 continue;
3838 }
3839
3840 if (no_match >= 0)
3841 {
3842 _bfd_error_handler
3843 /* xgettext:c-format */
3844 (_("%pB: %#" PRIx64 ": warning: %s points to "
3845 "unrecognized insn %#x"),
3846 abfd,
3847 (uint64_t) (irel->r_offset + no_match),
3848 "R_V850_LONGJUMP",
3849 insn[no_match]);
3850 continue;
3851 }
3852
3853 /* Get the reloc for the address from which the register is
3854 being loaded. This reloc will tell us which function is
3855 actually being called. */
3856 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3857 {
3858 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3859
3860 if (hi_irelfn->r_offset == laddr + 2
3861 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3862 break;
3863 }
3864
3865 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3866 {
3867 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3868
3869 if (lo_irelfn->r_offset == laddr + 6
3870 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3871 break;
3872 }
3873
3874 if ( hi_irelfn == irelend
3875 || lo_irelfn == irelend)
3876 {
3877 _bfd_error_handler
3878 /* xgettext:c-format */
3879 (_("%pB: %#" PRIx64 ": warning: %s points to "
3880 "unrecognized reloc"),
3881 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3882 continue;
3883 }
3884
3885 /* Get the value of the symbol referred to by the reloc. */
3886 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3887 {
3888 Elf_Internal_Sym * isym;
3889 asection * sym_sec;
3890
3891 /* A local symbol. */
3892 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3893
3894 if (isym->st_shndx == SHN_UNDEF)
3895 sym_sec = bfd_und_section_ptr;
3896 else if (isym->st_shndx == SHN_ABS)
3897 sym_sec = bfd_abs_section_ptr;
3898 else if (isym->st_shndx == SHN_COMMON)
3899 sym_sec = bfd_com_section_ptr;
3900 else
3901 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3902 symval = (isym->st_value
3903 + sym_sec->output_section->vma
3904 + sym_sec->output_offset);
3905 #ifdef DEBUG_RELAX
3906 {
3907 char * name = bfd_elf_string_from_elf_section
3908 (abfd, symtab_hdr->sh_link, isym->st_name);
3909
3910 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3911 sym_sec->name, name, isym->st_name,
3912 sym_sec->output_section->vma,
3913 sym_sec->output_offset,
3914 isym->st_value, irel->r_addend);
3915 }
3916 #endif
3917 }
3918 else
3919 {
3920 unsigned long indx;
3921 struct elf_link_hash_entry * h;
3922
3923 /* An external symbol. */
3924 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3925 h = elf_sym_hashes (abfd)[indx];
3926 BFD_ASSERT (h != NULL);
3927
3928 if ( h->root.type != bfd_link_hash_defined
3929 && h->root.type != bfd_link_hash_defweak)
3930 /* This appears to be a reference to an undefined
3931 symbol. Just ignore it--it will be caught by the
3932 regular reloc processing. */
3933 continue;
3934
3935 symval = (h->root.u.def.value
3936 + h->root.u.def.section->output_section->vma
3937 + h->root.u.def.section->output_offset);
3938 #ifdef DEBUG_RELAX
3939 fprintf (stderr,
3940 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3941 sec->name, h->root.root.string, h->root.u.def.value,
3942 sec->output_section->vma, sec->output_offset, irel->r_addend);
3943 #endif
3944 }
3945
3946 addend = irel->r_addend;
3947
3948 foff = (symval + addend
3949 - (irel->r_offset
3950 + sec->output_section->vma
3951 + sec->output_offset
3952 + 4));
3953 #ifdef DEBUG_RELAX
3954 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3955 irel->r_offset,
3956 (irel->r_offset
3957 + sec->output_section->vma
3958 + sec->output_offset),
3959 symval, addend, foff);
3960 #endif
3961 if (foff < -0x100000 || foff >= 0x100000)
3962 /* After all that work, we can't shorten this function call. */
3963 continue;
3964
3965 /* For simplicity of coding, we are going to modify the section
3966 contents, the section relocs, and the BFD symbol table. We
3967 must tell the rest of the code not to free up this
3968 information. It would be possible to instead create a table
3969 of changes which have to be made, as is done in coff-mips.c;
3970 that would be more work, but would require less memory when
3971 the linker is run. */
3972 elf_section_data (sec)->relocs = internal_relocs;
3973 elf_section_data (sec)->this_hdr.contents = contents;
3974 symtab_hdr->contents = (bfd_byte *) isymbuf;
3975
3976 if (foff < -0x100 || foff >= 0x100)
3977 {
3978 /* Replace the long jump with a jr. */
3979
3980 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3981 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3982 else
3983 irel->r_info =
3984 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3985
3986 irel->r_addend = addend;
3987 addend = 0;
3988
3989 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3990 /* If this needs to be changed because of future relaxing,
3991 it will be handled here like other internal IND12W
3992 relocs. */
3993 bfd_put_32 (abfd,
3994 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3995 contents + irel->r_offset);
3996 else
3997 /* We can't fully resolve this yet, because the external
3998 symbol value may be changed by future relaxing.
3999 We let the final link phase handle it. */
4000 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
4001
4002 hi_irelfn->r_info =
4003 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4004 lo_irelfn->r_info =
4005 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4006 if (!v850_elf_relax_delete_bytes (abfd, sec,
4007 irel->r_offset + 4, toaddr, 6))
4008 goto error_return;
4009
4010 align_pad_size += 6;
4011 }
4012 else
4013 {
4014 /* Replace the long jump with a br. */
4015
4016 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4017 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4018 else
4019 irel->r_info =
4020 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4021
4022 irel->r_addend = addend;
4023 addend = 0;
4024
4025 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4026 /* If this needs to be changed because of future relaxing,
4027 it will be handled here like other internal IND12W
4028 relocs. */
4029 bfd_put_16 (abfd,
4030 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4031 contents + irel->r_offset);
4032 else
4033 /* We can't fully resolve this yet, because the external
4034 symbol value may be changed by future relaxing.
4035 We let the final link phase handle it. */
4036 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4037
4038 hi_irelfn->r_info =
4039 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4040 lo_irelfn->r_info =
4041 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4042 if (!v850_elf_relax_delete_bytes (abfd, sec,
4043 irel->r_offset + 2, toaddr, 8))
4044 goto error_return;
4045
4046 align_pad_size += 8;
4047 }
4048 }
4049 }
4050
4051 irelalign = NULL;
4052 for (irel = internal_relocs; irel < irelend; irel++)
4053 {
4054 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4055 && irel->r_offset == toaddr)
4056 {
4057 irel->r_offset -= align_pad_size;
4058
4059 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4060 irelalign = irel;
4061 }
4062 }
4063
4064 addr = toaddr;
4065 }
4066
4067 if (!irelalign)
4068 {
4069 #ifdef DEBUG_RELAX
4070 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4071 align_pad_size,
4072 sec->size,
4073 sec->size - align_pad_size);
4074 #endif
4075 sec->size -= align_pad_size;
4076 }
4077
4078 finish:
4079 if (elf_section_data (sec)->relocs != internal_relocs)
4080 free (internal_relocs);
4081
4082 if (elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4083 free (contents);
4084
4085 if (symtab_hdr->contents != (bfd_byte *) isymbuf)
4086 free (isymbuf);
4087
4088 return result;
4089
4090 error_return:
4091 result = false;
4092 goto finish;
4093 }
4094
4095 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4096 {
4097 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4098 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4099 + SHF_EXECINSTR) },
4100 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4101 + SHF_V850_GPREL) },
4102 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4103 + SHF_V850_R0REL) },
4104 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4105 + SHF_V850_GPREL) },
4106 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4107 + SHF_V850_GPREL) },
4108 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4109 + SHF_V850_GPREL) },
4110 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4111 + SHF_V850_EPREL) },
4112 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4113 + SHF_V850_R0REL) },
4114 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4115 + SHF_V850_EPREL) },
4116 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4117 + SHF_V850_R0REL) },
4118 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4119 + SHF_V850_R0REL) },
4120 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4121 + SHF_V850_R0REL) },
4122 { NULL, 0, 0, 0, 0 }
4123 };
4124 \f
4125 #define TARGET_LITTLE_SYM v850_elf32_vec
4126 #define TARGET_LITTLE_NAME "elf32-v850"
4127 #define ELF_ARCH bfd_arch_v850
4128 #define ELF_MACHINE_CODE EM_V850
4129 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4130 #define ELF_MAXPAGESIZE 0x1000
4131
4132 #define elf_info_to_howto v850_elf_info_to_howto_rela
4133 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4134
4135 #define elf_backend_check_relocs v850_elf_check_relocs
4136 #define elf_backend_relocate_section v850_elf_relocate_section
4137 #define elf_backend_object_p v850_elf_object_p
4138 #define elf_backend_final_write_processing v850_elf_final_write_processing
4139 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4140 #define elf_backend_symbol_processing v850_elf_symbol_processing
4141 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4142 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4143 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4144 #define elf_backend_fake_sections v850_elf_fake_sections
4145 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4146 #define elf_backend_special_sections v850_elf_special_sections
4147
4148 #define elf_backend_can_gc_sections 1
4149 #define elf_backend_rela_normal 1
4150
4151 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4152 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4153
4154 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4155 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4156 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4157 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4158 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4159 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4160
4161 #define elf_symbol_leading_char '_'
4162
4163 #undef elf32_bed
4164 #define elf32_bed elf32_v850_bed
4165
4166 #include "elf32-target.h"
4167
4168 /* Map BFD reloc types to V800 ELF reloc types. */
4169
4170 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4171 {
4172 { BFD_RELOC_NONE, R_V810_NONE },
4173 { BFD_RELOC_8, R_V810_BYTE },
4174 { BFD_RELOC_16, R_V810_HWORD },
4175 { BFD_RELOC_32, R_V810_WORD },
4176 { BFD_RELOC_LO16, R_V810_WLO },
4177 { BFD_RELOC_HI16, R_V810_WHI },
4178 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4179 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4180 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4181 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4182 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4183 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4184 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4185 { BFD_RELOC_V850_23, R_V850_WLO23 },
4186 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4187 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4188 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4189 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4190 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4191 };
4192
4193 /* Map a bfd relocation into the appropriate howto structure. */
4194
4195 static reloc_howto_type *
4196 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4197 {
4198 unsigned int i;
4199
4200 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4201
4202 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4203 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4204 {
4205 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4206 unsigned int idx = elf_reloc_val - R_V810_NONE;
4207
4208 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4209
4210 return v800_elf_howto_table + idx;
4211 }
4212
4213 #ifdef DEBUG
4214 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4215 #endif
4216 return NULL;
4217 }
4218
4219 static reloc_howto_type *
4220 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4221 {
4222 unsigned int i;
4223
4224 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4225
4226 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4227 if (v800_elf_howto_table[i].name != NULL
4228 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4229 return v800_elf_howto_table + i;
4230
4231 return NULL;
4232 }
4233
4234
4235 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4236
4237 static bool
4238 v800_elf_info_to_howto (bfd * abfd,
4239 arelent * cache_ptr,
4240 Elf_Internal_Rela * dst)
4241 {
4242 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4243
4244 if (r_type == R_V800_NONE)
4245 r_type = R_V810_NONE;
4246
4247 if (bfd_get_arch (abfd) != bfd_arch_v850_rh850
4248 || r_type >= (unsigned int) R_V800_max
4249 || r_type < (unsigned int) R_V810_NONE
4250 || (r_type - R_V810_NONE) >= ARRAY_SIZE (v800_elf_howto_table))
4251 {
4252 /* xgettext:c-format */
4253 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4254 abfd, r_type);
4255 bfd_set_error (bfd_error_bad_value);
4256 return false;
4257 }
4258
4259 cache_ptr->howto = v800_elf_howto_table + (r_type - R_V810_NONE);
4260 return true;
4261 }
4262 \f
4263 #undef TARGET_LITTLE_SYM
4264 #define TARGET_LITTLE_SYM v800_elf32_vec
4265 #undef TARGET_LITTLE_NAME
4266 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4267 #undef ELF_ARCH
4268 #define ELF_ARCH bfd_arch_v850_rh850
4269 #undef ELF_MACHINE_CODE
4270 #define ELF_MACHINE_CODE EM_V800
4271 #undef ELF_MACHINE_ALT1
4272
4273 #undef elf32_bed
4274 #define elf32_bed elf32_v850_rh850_bed
4275
4276 #undef elf_info_to_howto
4277 #define elf_info_to_howto v800_elf_info_to_howto
4278 #undef elf_info_to_howto_rel
4279 #define elf_info_to_howto_rel NULL
4280 #undef bfd_elf32_bfd_reloc_type_lookup
4281 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4282 #undef bfd_elf32_bfd_reloc_name_lookup
4283 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4284
4285 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.