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Update NEWS post GDB 9 branch creation.
[binutils-gdb.git] / bfd / elf32-v850.c
blobc8a97ed129eaf64bfd73735ddd00affb0214c711
1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2019 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 bfd_boolean
47 v850_elf_check_relocs (bfd *abfd,
48 struct bfd_link_info *info,
49 asection *sec,
50 const Elf_Internal_Rela *relocs)
51 {
52 bfd_boolean 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 static char buff[200]; /* XXX */
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 sprintf (buff, msg, h->root.root.string);
169 info->callbacks->warning (info, buff, h->root.root.string,
170 abfd, h->root.u.def.section,
171 (bfd_vma) 0);
172
173 bfd_set_error (bfd_error_bad_value);
174 h->other |= V850_OTHER_ERROR;
175 ret = FALSE;
176 }
177 }
178
179 if (h && h->root.type == bfd_link_hash_common
180 && h->root.u.c.p
181 && !strcmp (bfd_section_name (h->root.u.c.p->section), "COMMON"))
182 {
183 asection * section;
184
185 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
186 section->flags |= SEC_IS_COMMON;
187 }
188
189 #ifdef DEBUG
190 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
191 v850_elf_howto_table[ (int)r_type ].name,
192 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
193 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
194 #endif
195 break;
196 }
197 }
198
199 return ret;
200 }
201
202 /* In the old version, when an entry was checked out from the table,
203 it was deleted. This produced an error if the entry was needed
204 more than once, as the second attempted retry failed.
205
206 In the current version, the entry is not deleted, instead we set
207 the field 'found' to TRUE. If a second lookup matches the same
208 entry, then we know that the hi16s reloc has already been updated
209 and does not need to be updated a second time.
210
211 TODO - TOFIX: If it is possible that we need to restore 2 different
212 addresses from the same table entry, where the first generates an
213 overflow, whilst the second do not, then this code will fail. */
214
215 typedef struct hi16s_location
216 {
217 bfd_vma addend;
218 bfd_byte * address;
219 unsigned long counter;
220 bfd_boolean found;
221 struct hi16s_location * next;
222 }
223 hi16s_location;
224
225 static hi16s_location * previous_hi16s;
226 static hi16s_location * free_hi16s;
227 static unsigned long hi16s_counter;
228
229 static void
230 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
231 {
232 hi16s_location * entry = NULL;
233 bfd_size_type amt = sizeof (* free_hi16s);
234
235 /* Find a free structure. */
236 if (free_hi16s == NULL)
237 free_hi16s = bfd_zalloc (abfd, amt);
238
239 entry = free_hi16s;
240 free_hi16s = free_hi16s->next;
241
242 entry->addend = addend;
243 entry->address = address;
244 entry->counter = hi16s_counter ++;
245 entry->found = FALSE;
246 entry->next = previous_hi16s;
247 previous_hi16s = entry;
248
249 /* Cope with wrap around of our counter. */
250 if (hi16s_counter == 0)
251 {
252 /* XXX: Assume that all counter entries differ only in their low 16 bits. */
253 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
254 entry->counter &= 0xffff;
255
256 hi16s_counter = 0x10000;
257 }
258 }
259
260 static bfd_byte *
261 find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found)
262 {
263 hi16s_location *match = NULL;
264 hi16s_location *entry;
265 bfd_byte *addr;
266
267 /* Search the table. Record the most recent entry that matches. */
268 for (entry = previous_hi16s; entry; entry = entry->next)
269 {
270 if (entry->addend == addend
271 && (match == NULL || match->counter < entry->counter))
272 {
273 match = entry;
274 }
275 }
276
277 if (match == NULL)
278 return NULL;
279
280 /* Extract the address. */
281 addr = match->address;
282
283 /* Remember if this entry has already been used before. */
284 if (already_found)
285 * already_found = match->found;
286
287 /* Note that this entry has now been used. */
288 match->found = TRUE;
289
290 return addr;
291 }
292
293 /* Calculate the final operand value for a R_V850_LO16 or
294 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
295 ADDEND is the sum of the relocation symbol and offset. Store the
296 operand value in *INSN and return true on success.
297
298 The assembler has already done some of this: If the value stored in
299 the instruction has its 15th bit set, (counting from zero) then the
300 assembler will have added 1 to the value stored in the associated
301 HI16S reloc. So for example, these relocations:
302
303 movhi hi( fred ), r0, r1
304 movea lo( fred ), r1, r1
305
306 will store 0 in the value fields for the MOVHI and MOVEA instructions
307 and addend will be the address of fred, but for these instructions:
308
309 movhi hi( fred + 0x123456 ), r0, r1
310 movea lo( fred + 0x123456 ), r1, r1
311
312 the value stored in the MOVHI instruction will be 0x12 and the value
313 stored in the MOVEA instruction will be 0x3456. If however the
314 instructions were:
315
316 movhi hi( fred + 0x10ffff ), r0, r1
317 movea lo( fred + 0x10ffff ), r1, r1
318
319 then the value stored in the MOVHI instruction would be 0x11 (not
320 0x10) and the value stored in the MOVEA instruction would be 0xffff.
321 Thus (assuming for the moment that the addend is 0), at run time the
322 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
323 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
324 the instructions were:
325
326 movhi hi( fred - 1 ), r0, r1
327 movea lo( fred - 1 ), r1, r1
328
329 then 0 is stored in the MOVHI instruction and -1 is stored in the
330 MOVEA instruction.
331
332 Overflow can occur if the addition of the value stored in the
333 instruction plus the addend sets the 15th bit when before it was clear.
334 This is because the 15th bit will be sign extended into the high part,
335 thus reducing its value by one, but since the 15th bit was originally
336 clear, the assembler will not have added 1 to the previous HI16S reloc
337 to compensate for this effect. For example:
338
339 movhi hi( fred + 0x123456 ), r0, r1
340 movea lo( fred + 0x123456 ), r1, r1
341
342 The value stored in HI16S reloc is 0x12, the value stored in the LO16
343 reloc is 0x3456. If we assume that the address of fred is 0x00007000
344 then the relocations become:
345
346 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
347 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
348
349 but when the instructions are executed, the MOVEA instruction's value
350 is signed extended, so the sum becomes:
351
352 0x00120000
353 + 0xffffa456
354 ------------
355 0x0011a456 but 'fred + 0x123456' = 0x0012a456
356
357 Note that if the 15th bit was set in the value stored in the LO16
358 reloc, then we do not have to do anything:
359
360 movhi hi( fred + 0x10ffff ), r0, r1
361 movea lo( fred + 0x10ffff ), r1, r1
362
363 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
364 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
365
366 0x00110000
367 + 0x00006fff
368 ------------
369 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
370
371 Overflow can also occur if the computation carries into the 16th bit
372 and it also results in the 15th bit having the same value as the 15th
373 bit of the original value. What happens is that the HI16S reloc
374 will have already examined the 15th bit of the original value and
375 added 1 to the high part if the bit is set. This compensates for the
376 sign extension of 15th bit of the result of the computation. But now
377 there is a carry into the 16th bit, and this has not been allowed for.
378
379 So, for example if fred is at address 0xf000:
380
381 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
382 movea lo( fred + 0xffff ), r1, r1
383
384 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
385 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
386
387 0x00010000
388 + 0xffffefff
389 ------------
390 0x0000efff but 'fred + 0xffff' = 0x0001efff
391
392 Similarly, if the 15th bit remains clear, but overflow occurs into
393 the 16th bit then (assuming the address of fred is 0xf000):
394
395 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
396 movea lo( fred + 0x7000 ), r1, r1
397
398 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
399 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
400
401 0x00000000
402 + 0x00006fff
403 ------------
404 0x00006fff but 'fred + 0x7000' = 0x00016fff
405
406 Note - there is no need to change anything if a carry occurs, and the
407 15th bit changes its value from being set to being clear, as the HI16S
408 reloc will have already added in 1 to the high part for us:
409
410 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
411 movea lo( fred + 0xffff ), r1, r1
412
413 HI16S: 0x0001 + (0x00007000 >> 16)
414 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
415
416 0x00010000
417 + 0x00006fff (bit 15 not set, so the top half is zero)
418 ------------
419 0x00016fff which is right (assuming that fred is at 0x7000)
420
421 but if the 15th bit goes from being clear to being set, then we must
422 once again handle overflow:
423
424 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
425 movea lo( fred + 0x7000 ), r1, r1
426
427 HI16S: 0x0000 + (0x0000ffff >> 16)
428 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
429
430 0x00000000
431 + 0x00006fff (bit 15 not set, so the top half is zero)
432 ------------
433 0x00006fff which is wrong (assuming that fred is at 0xffff). */
434
435 static bfd_boolean
436 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
437 unsigned long addend)
438 {
439 #define BIT15_SET(x) ((x) & 0x8000)
440 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
441
442 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
443 || (OVERFLOWS (addend, *insn)
444 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
445 {
446 bfd_boolean already_updated;
447 bfd_byte *hi16s_address = find_remembered_hi16s_reloc
448 (addend, & already_updated);
449
450 /* Amend the matching HI16_S relocation. */
451 if (hi16s_address != NULL)
452 {
453 if (! already_updated)
454 {
455 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
456 hi_insn += 1;
457 bfd_put_16 (abfd, hi_insn, hi16s_address);
458 }
459 }
460 else
461 {
462 _bfd_error_handler (_("failed to find previous HI16 reloc"));
463 return FALSE;
464 }
465 }
466 #undef OVERFLOWS
467 #undef BIT15_SET
468
469 /* Do not complain if value has top bit set, as this has been
470 anticipated. */
471 *insn = (*insn + addend) & 0xffff;
472 return TRUE;
473 }
474
475 /* FIXME: The code here probably ought to be removed and the code in reloc.c
476 allowed to do its stuff instead. At least for most of the relocs, anyway. */
477
478 static bfd_reloc_status_type
479 v850_elf_perform_relocation (bfd *abfd,
480 unsigned int r_type,
481 bfd_vma addend,
482 bfd_byte *address)
483 {
484 unsigned long insn;
485 unsigned long result;
486 bfd_signed_vma saddend = (bfd_signed_vma) addend;
487
488 switch (r_type)
489 {
490 default:
491 #ifdef DEBUG
492 _bfd_error_handler ("%pB: unsupported relocation type %#x",
493 abfd, r_type);
494 #endif
495 return bfd_reloc_notsupported;
496
497 case R_V850_REL32:
498 case R_V850_ABS32:
499 case R_V810_WORD:
500 case R_V850_PC32:
501 bfd_put_32 (abfd, addend, address);
502 return bfd_reloc_ok;
503
504 case R_V850_WLO23:
505 case R_V850_23:
506 insn = bfd_get_32 (abfd, address);
507 insn &= ~((0x7f << 4) | (0x7fff80 << (16-7)));
508 insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7));
509 bfd_put_32 (abfd, (bfd_vma) insn, address);
510 return bfd_reloc_ok;
511
512 case R_V850_PCR22:
513 case R_V850_22_PCREL:
514 if (saddend > 0x1fffff || saddend < -0x200000)
515 return bfd_reloc_overflow;
516
517 if ((addend % 2) != 0)
518 return bfd_reloc_dangerous;
519
520 insn = bfd_get_32 (abfd, address);
521 insn &= ~0xfffe003f;
522 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
523 bfd_put_32 (abfd, (bfd_vma) insn, address);
524 return bfd_reloc_ok;
525
526 case R_V850_PC17:
527 case R_V850_17_PCREL:
528 if (saddend > 0xffff || saddend < -0x10000)
529 return bfd_reloc_overflow;
530
531 if ((addend % 2) != 0)
532 return bfd_reloc_dangerous;
533
534 insn = bfd_get_32 (abfd, address);
535 insn &= ~ 0xfffe0010;
536 insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4));
537 break;
538
539 case R_V850_PC16U:
540 case R_V850_16_PCREL:
541 if ((saddend < -0xffff) || (saddend > 0))
542 return bfd_reloc_overflow;
543
544 if ((addend % 2) != 0)
545 return bfd_reloc_dangerous;
546
547 insn = bfd_get_16 (abfd, address);
548 insn &= ~0xfffe;
549 insn |= (-addend & 0xfffe);
550 break;
551
552 case R_V850_PC9:
553 case R_V850_9_PCREL:
554 if (saddend > 0xff || saddend < -0x100)
555 return bfd_reloc_overflow;
556
557 if ((addend % 2) != 0)
558 return bfd_reloc_dangerous;
559
560 insn = bfd_get_16 (abfd, address);
561 insn &= ~ 0xf870;
562 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
563 break;
564
565 case R_V810_WHI:
566 case R_V850_HI16:
567 addend += (bfd_get_16 (abfd, address) << 16);
568 addend = (addend >> 16);
569 insn = addend;
570 break;
571
572 case R_V810_WHI1:
573 case R_V850_HI16_S:
574 /* Remember where this relocation took place. */
575 remember_hi16s_reloc (abfd, addend, address);
576
577 addend += (bfd_get_16 (abfd, address) << 16);
578 addend = (addend >> 16) + ((addend & 0x8000) != 0);
579
580 /* This relocation cannot overflow. */
581 if (addend > 0xffff)
582 addend = 0;
583
584 insn = addend;
585 break;
586
587 case R_V810_WLO:
588 case R_V850_LO16:
589 insn = bfd_get_16 (abfd, address);
590 if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
591 return bfd_reloc_overflow;
592 break;
593
594 case R_V810_BYTE:
595 case R_V850_8:
596 addend += (char) bfd_get_8 (abfd, address);
597
598 saddend = (bfd_signed_vma) addend;
599
600 if (saddend > 0x7f || saddend < -0x80)
601 return bfd_reloc_overflow;
602
603 bfd_put_8 (abfd, addend, address);
604 return bfd_reloc_ok;
605
606 case R_V850_CALLT_16_16_OFFSET:
607 addend += bfd_get_16 (abfd, address);
608
609 saddend = (bfd_signed_vma) addend;
610
611 if (saddend > 0xffff || saddend < 0)
612 return bfd_reloc_overflow;
613
614 insn = addend;
615 break;
616
617 case R_V850_CALLT_15_16_OFFSET:
618 insn = bfd_get_16 (abfd, address);
619
620 addend += insn & 0xfffe;
621
622 saddend = (bfd_signed_vma) addend;
623
624 if (saddend > 0xffff || saddend < 0)
625 return bfd_reloc_overflow;
626
627 insn = (0xfffe & addend)
628 | (insn & ~0xfffe);
629 break;
630
631 case R_V850_CALLT_6_7_OFFSET:
632 insn = bfd_get_16 (abfd, address);
633 addend += ((insn & 0x3f) << 1);
634
635 saddend = (bfd_signed_vma) addend;
636
637 if (saddend > 0x7e || saddend < 0)
638 return bfd_reloc_overflow;
639
640 if (addend & 1)
641 return bfd_reloc_dangerous;
642
643 insn &= 0xff80;
644 insn |= (addend >> 1);
645 break;
646
647 case R_V850_16:
648 case R_V810_HWORD:
649 case R_V850_SDA_16_16_OFFSET:
650 case R_V850_ZDA_16_16_OFFSET:
651 case R_V850_TDA_16_16_OFFSET:
652 addend += bfd_get_16 (abfd, address);
653
654 saddend = (bfd_signed_vma) addend;
655
656 if (saddend > 0x7fff || saddend < -0x8000)
657 return bfd_reloc_overflow;
658
659 insn = addend;
660 break;
661
662 case R_V850_16_S1:
663 case R_V850_SDA_15_16_OFFSET:
664 case R_V850_ZDA_15_16_OFFSET:
665 case R_V810_GPWLO_1:
666 insn = bfd_get_16 (abfd, address);
667 addend += (insn & 0xfffe);
668
669 saddend = (bfd_signed_vma) addend;
670
671 if (saddend > 0x7ffe || saddend < -0x8000)
672 return bfd_reloc_overflow;
673
674 if (addend & 1)
675 return bfd_reloc_dangerous;
676
677 insn = (addend &~ (bfd_vma) 1) | (insn & 1);
678 break;
679
680 case R_V850_TDA_6_8_OFFSET:
681 insn = bfd_get_16 (abfd, address);
682 addend += ((insn & 0x7e) << 1);
683
684 saddend = (bfd_signed_vma) addend;
685
686 if (saddend > 0xfc || saddend < 0)
687 return bfd_reloc_overflow;
688
689 if (addend & 3)
690 return bfd_reloc_dangerous;
691
692 insn &= 0xff81;
693 insn |= (addend >> 1);
694 break;
695
696 case R_V850_TDA_7_8_OFFSET:
697 insn = bfd_get_16 (abfd, address);
698 addend += ((insn & 0x7f) << 1);
699
700 saddend = (bfd_signed_vma) addend;
701
702 if (saddend > 0xfe || saddend < 0)
703 return bfd_reloc_overflow;
704
705 if (addend & 1)
706 return bfd_reloc_dangerous;
707
708 insn &= 0xff80;
709 insn |= (addend >> 1);
710 break;
711
712 case R_V850_TDA_7_7_OFFSET:
713 insn = bfd_get_16 (abfd, address);
714 addend += insn & 0x7f;
715
716 saddend = (bfd_signed_vma) addend;
717
718 if (saddend > 0x7f || saddend < 0)
719 return bfd_reloc_overflow;
720
721 insn &= 0xff80;
722 insn |= addend;
723 break;
724
725 case R_V850_TDA_4_5_OFFSET:
726 insn = bfd_get_16 (abfd, address);
727 addend += ((insn & 0xf) << 1);
728
729 saddend = (bfd_signed_vma) addend;
730
731 if (saddend > 0x1e || saddend < 0)
732 return bfd_reloc_overflow;
733
734 if (addend & 1)
735 return bfd_reloc_dangerous;
736
737 insn &= 0xfff0;
738 insn |= (addend >> 1);
739 break;
740
741 case R_V850_TDA_4_4_OFFSET:
742 insn = bfd_get_16 (abfd, address);
743 addend += insn & 0xf;
744
745 saddend = (bfd_signed_vma) addend;
746
747 if (saddend > 0xf || saddend < 0)
748 return bfd_reloc_overflow;
749
750 insn &= 0xfff0;
751 insn |= addend;
752 break;
753
754 case R_V810_WLO_1:
755 case R_V850_HWLO:
756 case R_V850_HWLO_1:
757 case R_V850_LO16_S1:
758 insn = bfd_get_16 (abfd, address);
759 result = insn & 0xfffe;
760 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
761 return bfd_reloc_overflow;
762 if (result & 1)
763 return bfd_reloc_overflow;
764 insn = (result & 0xfffe)
765 | (insn & ~0xfffe);
766 bfd_put_16 (abfd, insn, address);
767 return bfd_reloc_ok;
768
769 case R_V850_BLO:
770 case R_V850_LO16_SPLIT_OFFSET:
771 insn = bfd_get_32 (abfd, address);
772 result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5);
773 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
774 return bfd_reloc_overflow;
775 insn = (((result << 16) & 0xfffe0000)
776 | ((result << 5) & 0x20)
777 | (insn & ~0xfffe0020));
778 bfd_put_32 (abfd, insn, address);
779 return bfd_reloc_ok;
780
781 case R_V850_16_SPLIT_OFFSET:
782 case R_V850_SDA_16_16_SPLIT_OFFSET:
783 case R_V850_ZDA_16_16_SPLIT_OFFSET:
784 insn = bfd_get_32 (abfd, address);
785 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
786
787 saddend = (bfd_signed_vma) addend;
788
789 if (saddend > 0x7fff || saddend < -0x8000)
790 return bfd_reloc_overflow;
791
792 insn &= 0x0001ffdf;
793 insn |= (addend & 1) << 5;
794 insn |= (addend &~ (bfd_vma) 1) << 16;
795
796 bfd_put_32 (abfd, (bfd_vma) insn, address);
797 return bfd_reloc_ok;
798
799 case R_V850_GNU_VTINHERIT:
800 case R_V850_GNU_VTENTRY:
801 return bfd_reloc_ok;
802
803 }
804
805 bfd_put_16 (abfd, (bfd_vma) insn, address);
806 return bfd_reloc_ok;
807 }
808 \f
809 /* Insert the addend into the instruction. */
810
811 static bfd_reloc_status_type
812 v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
813 arelent *reloc,
814 asymbol *symbol,
815 void * data ATTRIBUTE_UNUSED,
816 asection *isection,
817 bfd *obfd,
818 char **err ATTRIBUTE_UNUSED)
819 {
820 long relocation;
821
822 /* If there is an output BFD,
823 and the symbol is not a section name (which is only defined at final link time),
824 and either we are not putting the addend into the instruction
825 or the addend is zero, so there is nothing to add into the instruction
826 then just fixup the address and return. */
827 if (obfd != NULL
828 && (symbol->flags & BSF_SECTION_SYM) == 0
829 && (! reloc->howto->partial_inplace
830 || reloc->addend == 0))
831 {
832 reloc->address += isection->output_offset;
833 return bfd_reloc_ok;
834 }
835
836 /* Catch relocs involving undefined symbols. */
837 if (bfd_is_und_section (symbol->section)
838 && (symbol->flags & BSF_WEAK) == 0
839 && obfd == NULL)
840 return bfd_reloc_undefined;
841
842 /* We handle final linking of some relocs ourselves. */
843
844 /* Is the address of the relocation really within the section? */
845 if (reloc->address > bfd_get_section_limit (abfd, isection))
846 return bfd_reloc_outofrange;
847
848 /* Work out which section the relocation is targeted at and the
849 initial relocation command value. */
850
851 if (reloc->howto->pc_relative)
852 return bfd_reloc_ok;
853
854 /* Get symbol value. (Common symbols are special.) */
855 if (bfd_is_com_section (symbol->section))
856 relocation = 0;
857 else
858 relocation = symbol->value;
859
860 /* Convert input-section-relative symbol value to absolute + addend. */
861 relocation += symbol->section->output_section->vma;
862 relocation += symbol->section->output_offset;
863 relocation += reloc->addend;
864
865 reloc->addend = relocation;
866 return bfd_reloc_ok;
867 }
868
869 /* This function is used for relocs which are only used
870 for relaxing, which the linker should otherwise ignore. */
871
872 static bfd_reloc_status_type
873 v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
874 arelent *reloc_entry,
875 asymbol *symbol ATTRIBUTE_UNUSED,
876 void * data ATTRIBUTE_UNUSED,
877 asection *input_section,
878 bfd *output_bfd,
879 char **error_message ATTRIBUTE_UNUSED)
880 {
881 if (output_bfd != NULL)
882 reloc_entry->address += input_section->output_offset;
883
884 return bfd_reloc_ok;
885 }
886 /* Note: It is REQUIRED that the 'type' value of each entry
887 in this array match the index of the entry in the array.
888 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
889 static reloc_howto_type v850_elf_howto_table[] =
890 {
891 /* This reloc does nothing. */
892 HOWTO (R_V850_NONE, /* Type. */
893 0, /* Rightshift. */
894 3, /* Size (0 = byte, 1 = short, 2 = long). */
895 0, /* Bitsize. */
896 FALSE, /* PC_relative. */
897 0, /* Bitpos. */
898 complain_overflow_dont, /* Complain_on_overflow. */
899 bfd_elf_generic_reloc, /* Special_function. */
900 "R_V850_NONE", /* Name. */
901 FALSE, /* Partial_inplace. */
902 0, /* Src_mask. */
903 0, /* Dst_mask. */
904 FALSE), /* PCrel_offset. */
905
906 /* A PC relative 9 bit branch. */
907 HOWTO (R_V850_9_PCREL, /* Type. */
908 0, /* Rightshift. */
909 1, /* Size (0 = byte, 1 = short, 2 = long). */
910 9, /* Bitsize. */
911 TRUE, /* PC_relative. */
912 0, /* Bitpos. */
913 complain_overflow_bitfield, /* Complain_on_overflow. */
914 v850_elf_reloc, /* Special_function. */
915 "R_V850_9_PCREL", /* Name. */
916 FALSE, /* Partial_inplace. */
917 0x00ffffff, /* Src_mask. */
918 0x00ffffff, /* Dst_mask. */
919 TRUE), /* PCrel_offset. */
920
921 /* A PC relative 22 bit branch. */
922 HOWTO (R_V850_22_PCREL, /* Type. */
923 0, /* Rightshift. */
924 2, /* Size (0 = byte, 1 = short, 2 = long). */
925 22, /* Bitsize. */
926 TRUE, /* PC_relative. */
927 0, /* Bitpos. */
928 complain_overflow_signed, /* Complain_on_overflow. */
929 v850_elf_reloc, /* Special_function. */
930 "R_V850_22_PCREL", /* Name. */
931 FALSE, /* Partial_inplace. */
932 0x07ffff80, /* Src_mask. */
933 0x07ffff80, /* Dst_mask. */
934 TRUE), /* PCrel_offset. */
935
936 /* High 16 bits of symbol value. */
937 HOWTO (R_V850_HI16_S, /* Type. */
938 0, /* Rightshift. */
939 1, /* Size (0 = byte, 1 = short, 2 = long). */
940 16, /* Bitsize. */
941 FALSE, /* PC_relative. */
942 0, /* Bitpos. */
943 complain_overflow_dont, /* Complain_on_overflow. */
944 v850_elf_reloc, /* Special_function. */
945 "R_V850_HI16_S", /* Name. */
946 FALSE, /* Partial_inplace. */
947 0xffff, /* Src_mask. */
948 0xffff, /* Dst_mask. */
949 FALSE), /* PCrel_offset. */
950
951 /* High 16 bits of symbol value. */
952 HOWTO (R_V850_HI16, /* Type. */
953 0, /* Rightshift. */
954 1, /* Size (0 = byte, 1 = short, 2 = long). */
955 16, /* Bitsize. */
956 FALSE, /* PC_relative. */
957 0, /* Bitpos. */
958 complain_overflow_dont, /* Complain_on_overflow. */
959 v850_elf_reloc, /* Special_function. */
960 "R_V850_HI16", /* Name. */
961 FALSE, /* Partial_inplace. */
962 0xffff, /* Src_mask. */
963 0xffff, /* Dst_mask. */
964 FALSE), /* PCrel_offset. */
965
966 /* Low 16 bits of symbol value. */
967 HOWTO (R_V850_LO16, /* Type. */
968 0, /* Rightshift. */
969 1, /* Size (0 = byte, 1 = short, 2 = long). */
970 16, /* Bitsize. */
971 FALSE, /* PC_relative. */
972 0, /* Bitpos. */
973 complain_overflow_dont, /* Complain_on_overflow. */
974 v850_elf_reloc, /* Special_function. */
975 "R_V850_LO16", /* Name. */
976 FALSE, /* Partial_inplace. */
977 0xffff, /* Src_mask. */
978 0xffff, /* Dst_mask. */
979 FALSE), /* PCrel_offset. */
980
981 /* Simple 32bit reloc. */
982 HOWTO (R_V850_ABS32, /* Type. */
983 0, /* Rightshift. */
984 2, /* Size (0 = byte, 1 = short, 2 = long). */
985 32, /* Bitsize. */
986 FALSE, /* PC_relative. */
987 0, /* Bitpos. */
988 complain_overflow_dont, /* Complain_on_overflow. */
989 v850_elf_reloc, /* Special_function. */
990 "R_V850_ABS32", /* Name. */
991 FALSE, /* Partial_inplace. */
992 0xffffffff, /* Src_mask. */
993 0xffffffff, /* Dst_mask. */
994 FALSE), /* PCrel_offset. */
995
996 /* Simple 16bit reloc. */
997 HOWTO (R_V850_16, /* Type. */
998 0, /* Rightshift. */
999 1, /* Size (0 = byte, 1 = short, 2 = long). */
1000 16, /* Bitsize. */
1001 FALSE, /* PC_relative. */
1002 0, /* Bitpos. */
1003 complain_overflow_dont, /* Complain_on_overflow. */
1004 bfd_elf_generic_reloc, /* Special_function. */
1005 "R_V850_16", /* Name. */
1006 FALSE, /* Partial_inplace. */
1007 0xffff, /* Src_mask. */
1008 0xffff, /* Dst_mask. */
1009 FALSE), /* PCrel_offset. */
1010
1011 /* Simple 8bit reloc. */
1012 HOWTO (R_V850_8, /* Type. */
1013 0, /* Rightshift. */
1014 0, /* Size (0 = byte, 1 = short, 2 = long). */
1015 8, /* Bitsize. */
1016 FALSE, /* PC_relative. */
1017 0, /* Bitpos. */
1018 complain_overflow_dont, /* Complain_on_overflow. */
1019 bfd_elf_generic_reloc, /* Special_function. */
1020 "R_V850_8", /* Name. */
1021 FALSE, /* Partial_inplace. */
1022 0xff, /* Src_mask. */
1023 0xff, /* Dst_mask. */
1024 FALSE), /* PCrel_offset. */
1025
1026 /* 16 bit offset from the short data area pointer. */
1027 HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */
1028 0, /* Rightshift. */
1029 1, /* Size (0 = byte, 1 = short, 2 = long). */
1030 16, /* Bitsize. */
1031 FALSE, /* PC_relative. */
1032 0, /* Bitpos. */
1033 complain_overflow_dont, /* Complain_on_overflow. */
1034 v850_elf_reloc, /* Special_function. */
1035 "R_V850_SDA_16_16_OFFSET", /* Name. */
1036 FALSE, /* Partial_inplace. */
1037 0xffff, /* Src_mask. */
1038 0xffff, /* Dst_mask. */
1039 FALSE), /* PCrel_offset. */
1040
1041 /* 15 bit offset from the short data area pointer. */
1042 HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */
1043 1, /* Rightshift. */
1044 1, /* Size (0 = byte, 1 = short, 2 = long). */
1045 16, /* Bitsize. */
1046 FALSE, /* PC_relative. */
1047 1, /* Bitpos. */
1048 complain_overflow_dont, /* Complain_on_overflow. */
1049 v850_elf_reloc, /* Special_function. */
1050 "R_V850_SDA_15_16_OFFSET", /* Name. */
1051 FALSE, /* Partial_inplace. */
1052 0xfffe, /* Src_mask. */
1053 0xfffe, /* Dst_mask. */
1054 FALSE), /* PCrel_offset. */
1055
1056 /* 16 bit offset from the zero data area pointer. */
1057 HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */
1058 0, /* Rightshift. */
1059 1, /* Size (0 = byte, 1 = short, 2 = long). */
1060 16, /* Bitsize. */
1061 FALSE, /* PC_relative. */
1062 0, /* Bitpos. */
1063 complain_overflow_dont, /* Complain_on_overflow. */
1064 v850_elf_reloc, /* Special_function. */
1065 "R_V850_ZDA_16_16_OFFSET", /* Name. */
1066 FALSE, /* Partial_inplace. */
1067 0xffff, /* Src_mask. */
1068 0xffff, /* Dst_mask. */
1069 FALSE), /* PCrel_offset. */
1070
1071 /* 15 bit offset from the zero data area pointer. */
1072 HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */
1073 1, /* Rightshift. */
1074 1, /* Size (0 = byte, 1 = short, 2 = long). */
1075 16, /* Bitsize. */
1076 FALSE, /* PC_relative. */
1077 1, /* Bitpos. */
1078 complain_overflow_dont, /* Complain_on_overflow. */
1079 v850_elf_reloc, /* Special_function. */
1080 "R_V850_ZDA_15_16_OFFSET", /* Name. */
1081 FALSE, /* Partial_inplace. */
1082 0xfffe, /* Src_mask. */
1083 0xfffe, /* Dst_mask. */
1084 FALSE), /* PCrel_offset. */
1085
1086 /* 6 bit offset from the tiny data area pointer. */
1087 HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */
1088 2, /* Rightshift. */
1089 1, /* Size (0 = byte, 1 = short, 2 = long). */
1090 8, /* Bitsize. */
1091 FALSE, /* PC_relative. */
1092 1, /* Bitpos. */
1093 complain_overflow_dont, /* Complain_on_overflow. */
1094 v850_elf_reloc, /* Special_function. */
1095 "R_V850_TDA_6_8_OFFSET", /* Name. */
1096 FALSE, /* Partial_inplace. */
1097 0x7e, /* Src_mask. */
1098 0x7e, /* Dst_mask. */
1099 FALSE), /* PCrel_offset. */
1100
1101 /* 8 bit offset from the tiny data area pointer. */
1102 HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */
1103 1, /* Rightshift. */
1104 1, /* Size (0 = byte, 1 = short, 2 = long). */
1105 8, /* Bitsize. */
1106 FALSE, /* PC_relative. */
1107 0, /* Bitpos. */
1108 complain_overflow_dont, /* Complain_on_overflow. */
1109 v850_elf_reloc, /* Special_function. */
1110 "R_V850_TDA_7_8_OFFSET", /* Name. */
1111 FALSE, /* Partial_inplace. */
1112 0x7f, /* Src_mask. */
1113 0x7f, /* Dst_mask. */
1114 FALSE), /* PCrel_offset. */
1115
1116 /* 7 bit offset from the tiny data area pointer. */
1117 HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */
1118 0, /* Rightshift. */
1119 1, /* Size (0 = byte, 1 = short, 2 = long). */
1120 7, /* Bitsize. */
1121 FALSE, /* PC_relative. */
1122 0, /* Bitpos. */
1123 complain_overflow_dont, /* Complain_on_overflow. */
1124 v850_elf_reloc, /* Special_function. */
1125 "R_V850_TDA_7_7_OFFSET", /* Name. */
1126 FALSE, /* Partial_inplace. */
1127 0x7f, /* Src_mask. */
1128 0x7f, /* Dst_mask. */
1129 FALSE), /* PCrel_offset. */
1130
1131 /* 16 bit offset from the tiny data area pointer! */
1132 HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */
1133 0, /* Rightshift. */
1134 1, /* Size (0 = byte, 1 = short, 2 = long). */
1135 16, /* Bitsize. */
1136 FALSE, /* PC_relative. */
1137 0, /* Bitpos. */
1138 complain_overflow_dont, /* Complain_on_overflow. */
1139 v850_elf_reloc, /* Special_function. */
1140 "R_V850_TDA_16_16_OFFSET", /* Name. */
1141 FALSE, /* Partial_inplace. */
1142 0xffff, /* Src_mask. */
1143 0xfff, /* Dst_mask. */
1144 FALSE), /* PCrel_offset. */
1145
1146 /* 5 bit offset from the tiny data area pointer. */
1147 HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */
1148 1, /* Rightshift. */
1149 1, /* Size (0 = byte, 1 = short, 2 = long). */
1150 5, /* Bitsize. */
1151 FALSE, /* PC_relative. */
1152 0, /* Bitpos. */
1153 complain_overflow_dont, /* Complain_on_overflow. */
1154 v850_elf_reloc, /* Special_function. */
1155 "R_V850_TDA_4_5_OFFSET", /* Name. */
1156 FALSE, /* Partial_inplace. */
1157 0x0f, /* Src_mask. */
1158 0x0f, /* Dst_mask. */
1159 FALSE), /* PCrel_offset. */
1160
1161 /* 4 bit offset from the tiny data area pointer. */
1162 HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */
1163 0, /* Rightshift. */
1164 1, /* Size (0 = byte, 1 = short, 2 = long). */
1165 4, /* Bitsize. */
1166 FALSE, /* PC_relative. */
1167 0, /* Bitpos. */
1168 complain_overflow_dont, /* Complain_on_overflow. */
1169 v850_elf_reloc, /* Special_function. */
1170 "R_V850_TDA_4_4_OFFSET", /* Name. */
1171 FALSE, /* Partial_inplace. */
1172 0x0f, /* Src_mask. */
1173 0x0f, /* Dst_mask. */
1174 FALSE), /* PCrel_offset. */
1175
1176 /* 16 bit offset from the short data area pointer. */
1177 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */
1178 0, /* Rightshift. */
1179 2, /* Size (0 = byte, 1 = short, 2 = long). */
1180 16, /* Bitsize. */
1181 FALSE, /* PC_relative. */
1182 0, /* Bitpos. */
1183 complain_overflow_dont, /* Complain_on_overflow. */
1184 v850_elf_reloc, /* Special_function. */
1185 "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */
1186 FALSE, /* Partial_inplace. */
1187 0xfffe0020, /* Src_mask. */
1188 0xfffe0020, /* Dst_mask. */
1189 FALSE), /* PCrel_offset. */
1190
1191 /* 16 bit offset from the zero data area pointer. */
1192 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */
1193 0, /* Rightshift. */
1194 2, /* Size (0 = byte, 1 = short, 2 = long). */
1195 16, /* Bitsize. */
1196 FALSE, /* PC_relative. */
1197 0, /* Bitpos. */
1198 complain_overflow_dont, /* Complain_on_overflow. */
1199 v850_elf_reloc, /* Special_function. */
1200 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */
1201 FALSE, /* Partial_inplace. */
1202 0xfffe0020, /* Src_mask. */
1203 0xfffe0020, /* Dst_mask. */
1204 FALSE), /* PCrel_offset. */
1205
1206 /* 6 bit offset from the call table base pointer. */
1207 HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */
1208 0, /* Rightshift. */
1209 1, /* Size (0 = byte, 1 = short, 2 = long). */
1210 7, /* Bitsize. */
1211 FALSE, /* PC_relative. */
1212 0, /* Bitpos. */
1213 complain_overflow_dont, /* Complain_on_overflow. */
1214 v850_elf_reloc, /* Special_function. */
1215 "R_V850_CALLT_6_7_OFFSET", /* Name. */
1216 FALSE, /* Partial_inplace. */
1217 0x3f, /* Src_mask. */
1218 0x3f, /* Dst_mask. */
1219 FALSE), /* PCrel_offset. */
1220
1221 /* 16 bit offset from the call table base pointer. */
1222 HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */
1223 0, /* Rightshift. */
1224 1, /* Size (0 = byte, 1 = short, 2 = long). */
1225 16, /* Bitsize. */
1226 FALSE, /* PC_relative. */
1227 0, /* Bitpos. */
1228 complain_overflow_dont, /* Complain_on_overflow. */
1229 v850_elf_reloc, /* Special_function. */
1230 "R_V850_CALLT_16_16_OFFSET", /* Name. */
1231 FALSE, /* Partial_inplace. */
1232 0xffff, /* Src_mask. */
1233 0xffff, /* Dst_mask. */
1234 FALSE), /* PCrel_offset. */
1235
1236
1237 /* GNU extension to record C++ vtable hierarchy */
1238 HOWTO (R_V850_GNU_VTINHERIT, /* Type. */
1239 0, /* Rightshift. */
1240 2, /* Size (0 = byte, 1 = short, 2 = long). */
1241 0, /* Bitsize. */
1242 FALSE, /* PC_relative. */
1243 0, /* Bitpos. */
1244 complain_overflow_dont, /* Complain_on_overflow. */
1245 NULL, /* Special_function. */
1246 "R_V850_GNU_VTINHERIT", /* Name. */
1247 FALSE, /* Partial_inplace. */
1248 0, /* Src_mask. */
1249 0, /* Dst_mask. */
1250 FALSE), /* PCrel_offset. */
1251
1252 /* GNU extension to record C++ vtable member usage. */
1253 HOWTO (R_V850_GNU_VTENTRY, /* Type. */
1254 0, /* Rightshift. */
1255 2, /* Size (0 = byte, 1 = short, 2 = long). */
1256 0, /* Bitsize. */
1257 FALSE, /* PC_relative. */
1258 0, /* Bitpos. */
1259 complain_overflow_dont, /* Complain_on_overflow. */
1260 _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
1261 "R_V850_GNU_VTENTRY", /* Name. */
1262 FALSE, /* Partial_inplace. */
1263 0, /* Src_mask. */
1264 0, /* Dst_mask. */
1265 FALSE), /* PCrel_offset. */
1266
1267 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
1268 pseudo-op when it finds a function call which can be relaxed. */
1269 HOWTO (R_V850_LONGCALL, /* Type. */
1270 0, /* Rightshift. */
1271 2, /* Size (0 = byte, 1 = short, 2 = long). */
1272 32, /* Bitsize. */
1273 TRUE, /* PC_relative. */
1274 0, /* Bitpos. */
1275 complain_overflow_signed, /* Complain_on_overflow. */
1276 v850_elf_ignore_reloc, /* Special_function. */
1277 "R_V850_LONGCALL", /* Name. */
1278 FALSE, /* Partial_inplace. */
1279 0, /* Src_mask. */
1280 0, /* Dst_mask. */
1281 TRUE), /* PCrel_offset. */
1282
1283 /* Indicates a .longjump pseudo-op. The compiler will generate a
1284 .longjump pseudo-op when it finds a branch which can be relaxed. */
1285 HOWTO (R_V850_LONGJUMP, /* Type. */
1286 0, /* Rightshift. */
1287 2, /* Size (0 = byte, 1 = short, 2 = long). */
1288 32, /* Bitsize. */
1289 TRUE, /* PC_relative. */
1290 0, /* Bitpos. */
1291 complain_overflow_signed, /* Complain_on_overflow. */
1292 v850_elf_ignore_reloc, /* Special_function. */
1293 "R_V850_LONGJUMP", /* Name. */
1294 FALSE, /* Partial_inplace. */
1295 0, /* Src_mask. */
1296 0, /* Dst_mask. */
1297 TRUE), /* PCrel_offset. */
1298
1299 HOWTO (R_V850_ALIGN, /* Type. */
1300 0, /* Rightshift. */
1301 1, /* Size (0 = byte, 1 = short, 2 = long). */
1302 0, /* Bitsize. */
1303 FALSE, /* PC_relative. */
1304 0, /* Bitpos. */
1305 complain_overflow_unsigned, /* Complain_on_overflow. */
1306 v850_elf_ignore_reloc, /* Special_function. */
1307 "R_V850_ALIGN", /* Name. */
1308 FALSE, /* Partial_inplace. */
1309 0, /* Src_mask. */
1310 0, /* Dst_mask. */
1311 TRUE), /* PCrel_offset. */
1312
1313 /* Simple pc-relative 32bit reloc. */
1314 HOWTO (R_V850_REL32, /* Type. */
1315 0, /* Rightshift. */
1316 2, /* Size (0 = byte, 1 = short, 2 = long). */
1317 32, /* Bitsize. */
1318 TRUE, /* PC_relative. */
1319 0, /* Bitpos. */
1320 complain_overflow_dont, /* Complain_on_overflow. */
1321 v850_elf_reloc, /* Special_function. */
1322 "R_V850_REL32", /* Name. */
1323 FALSE, /* Partial_inplace. */
1324 0xffffffff, /* Src_mask. */
1325 0xffffffff, /* Dst_mask. */
1326 FALSE), /* PCrel_offset. */
1327
1328 /* An ld.bu version of R_V850_LO16. */
1329 HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */
1330 0, /* Rightshift. */
1331 2, /* Size (0 = byte, 1 = short, 2 = long). */
1332 16, /* Bitsize. */
1333 FALSE, /* PC_relative. */
1334 0, /* Bitpos. */
1335 complain_overflow_dont, /* Complain_on_overflow. */
1336 v850_elf_reloc, /* Special_function. */
1337 "R_V850_LO16_SPLIT_OFFSET", /* Name. */
1338 FALSE, /* Partial_inplace. */
1339 0xfffe0020, /* Src_mask. */
1340 0xfffe0020, /* Dst_mask. */
1341 FALSE), /* PCrel_offset. */
1342
1343 /* A unsigned PC relative 16 bit loop. */
1344 HOWTO (R_V850_16_PCREL, /* Type. */
1345 0, /* Rightshift. */
1346 1, /* Size (0 = byte, 1 = short, 2 = long). */
1347 16, /* Bitsize. */
1348 TRUE, /* PC_relative. */
1349 0, /* Bitpos. */
1350 complain_overflow_bitfield, /* Complain_on_overflow. */
1351 v850_elf_reloc, /* Special_function. */
1352 "R_V850_16_PCREL", /* Name. */
1353 FALSE, /* Partial_inplace. */
1354 0xfffe, /* Src_mask. */
1355 0xfffe, /* Dst_mask. */
1356 TRUE), /* PCrel_offset. */
1357
1358 /* A PC relative 17 bit branch. */
1359 HOWTO (R_V850_17_PCREL, /* Type. */
1360 0, /* Rightshift. */
1361 2, /* Size (0 = byte, 1 = short, 2 = long). */
1362 17, /* Bitsize. */
1363 TRUE, /* PC_relative. */
1364 0, /* Bitpos. */
1365 complain_overflow_bitfield, /* Complain_on_overflow. */
1366 v850_elf_reloc, /* Special_function. */
1367 "R_V850_17_PCREL", /* Name. */
1368 FALSE, /* Partial_inplace. */
1369 0x0010fffe, /* Src_mask. */
1370 0x0010fffe, /* Dst_mask. */
1371 TRUE), /* PCrel_offset. */
1372
1373 /* A 23bit offset ld/st. */
1374 HOWTO (R_V850_23, /* type. */
1375 0, /* rightshift. */
1376 2, /* size (0 = byte, 1 = short, 2 = long). */
1377 23, /* bitsize. */
1378 FALSE, /* pc_relative. */
1379 0, /* bitpos. */
1380 complain_overflow_dont, /* complain_on_overflow. */
1381 v850_elf_reloc, /* special_function. */
1382 "R_V850_23", /* name. */
1383 FALSE, /* partial_inplace. */
1384 0xffff07f0, /* src_mask. */
1385 0xffff07f0, /* dst_mask. */
1386 FALSE), /* pcrel_offset. */
1387
1388 /* A PC relative 32 bit branch. */
1389 HOWTO (R_V850_32_PCREL, /* type. */
1390 1, /* rightshift. */
1391 2, /* size (0 = byte, 1 = short, 2 = long). */
1392 32, /* bitsize. */
1393 TRUE, /* pc_relative. */
1394 1, /* bitpos. */
1395 complain_overflow_signed, /* complain_on_overflow. */
1396 v850_elf_reloc, /* special_function. */
1397 "R_V850_32_PCREL", /* name. */
1398 FALSE, /* partial_inplace. */
1399 0xfffffffe, /* src_mask. */
1400 0xfffffffe, /* dst_mask. */
1401 TRUE), /* pcrel_offset. */
1402
1403 /* A absolute 32 bit branch. */
1404 HOWTO (R_V850_32_ABS, /* type. */
1405 1, /* rightshift. */
1406 2, /* size (0 = byte, 1 = short, 2 = long). */
1407 32, /* bitsize. */
1408 TRUE, /* pc_relative. */
1409 1, /* bitpos. */
1410 complain_overflow_signed, /* complain_on_overflow. */
1411 v850_elf_reloc, /* special_function. */
1412 "R_V850_32_ABS", /* name. */
1413 FALSE, /* partial_inplace. */
1414 0xfffffffe, /* src_mask. */
1415 0xfffffffe, /* dst_mask. */
1416 FALSE), /* pcrel_offset. */
1417
1418 /* High 16 bits of symbol value. */
1419 HOWTO (R_V850_HI16, /* Type. */
1420 0, /* Rightshift. */
1421 1, /* Size (0 = byte, 1 = short, 2 = long). */
1422 16, /* Bitsize. */
1423 FALSE, /* PC_relative. */
1424 0, /* Bitpos. */
1425 complain_overflow_dont, /* Complain_on_overflow. */
1426 v850_elf_reloc, /* Special_function. */
1427 "R_V850_HI16", /* Name. */
1428 FALSE, /* Partial_inplace. */
1429 0xffff, /* Src_mask. */
1430 0xffff, /* Dst_mask. */
1431 FALSE), /* PCrel_offset. */
1432
1433 /* Low 16 bits of symbol value. */
1434 HOWTO (R_V850_16_S1, /* type. */
1435 1, /* rightshift. */
1436 1, /* size (0 = byte, 1 = short, 2 = long). */
1437 16, /* bitsize. */
1438 FALSE, /* pc_relative. */
1439 1, /* bitpos. */
1440 complain_overflow_dont, /* complain_on_overflow. */
1441 v850_elf_reloc, /* special_function. */
1442 "R_V850_16_S1", /* name. */
1443 FALSE, /* partial_inplace. */
1444 0xfffe, /* src_mask. */
1445 0xfffe, /* dst_mask. */
1446 FALSE), /* pcrel_offset. */
1447
1448 /* Low 16 bits of symbol value. */
1449 HOWTO (R_V850_LO16_S1, /* type. */
1450 1, /* rightshift. */
1451 1, /* size (0 = byte, 1 = short, 2 = long). */
1452 16, /* bitsize. */
1453 FALSE, /* pc_relative. */
1454 1, /* bitpos. */
1455 complain_overflow_dont, /* complain_on_overflow. */
1456 v850_elf_reloc, /* special_function. */
1457 "R_V850_LO16_S1", /* name. */
1458 FALSE, /* partial_inplace. */
1459 0xfffe, /* src_mask. */
1460 0xfffe, /* dst_mask. */
1461 FALSE), /* pcrel_offset. */
1462
1463 /* 16 bit offset from the call table base pointer. */
1464 HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */
1465 1, /* rightshift. */
1466 1, /* size (0 = byte, 1 = short, 2 = long). */
1467 16, /* bitsize. */
1468 FALSE, /* pc_relative. */
1469 1, /* bitpos. */
1470 complain_overflow_dont, /* complain_on_overflow. */
1471 v850_elf_reloc, /* special_function. */
1472 "R_V850_CALLT_15_16_OFFSET", /* name. */
1473 FALSE, /* partial_inplace. */
1474 0xfffe, /* src_mask. */
1475 0xfffe, /* dst_mask. */
1476 FALSE), /* pcrel_offset. */
1477
1478 /* Like R_V850_32 PCREL, but referring to the GOT table entry for
1479 the symbol. */
1480 HOWTO (R_V850_32_GOTPCREL, /* type. */
1481 0, /* rightshift. */
1482 2, /* size (0 = byte, 1 = short, 2 = long). */
1483 32, /* bitsize. */
1484 TRUE, /* pc_relative. */
1485 0, /* bitpos. */
1486 complain_overflow_unsigned, /* complain_on_overflow. */
1487 v850_elf_reloc, /* special_function. */
1488 "R_V850_32_GOTPCREL", /* name. */
1489 FALSE, /* partial_inplace. */
1490 0xffffffff, /* src_mask. */
1491 0xffffffff, /* dst_mask. */
1492 TRUE), /* pcrel_offset. */
1493
1494 /* Like R_V850_SDA_, but referring to the GOT table entry for
1495 the symbol. */
1496 HOWTO (R_V850_16_GOT, /* type. */
1497 0, /* rightshift. */
1498 2, /* size (0 = byte, 1 = short, 2 = long). */
1499 16, /* bitsize. */
1500 FALSE, /* pc_relative. */
1501 0, /* bitpos. */
1502 complain_overflow_unsigned, /* complain_on_overflow. */
1503 bfd_elf_generic_reloc, /* special_function. */
1504 "R_V850_16_GOT", /* name. */
1505 FALSE, /* partial_inplace. */
1506 0xffff, /* src_mask. */
1507 0xffff, /* dst_mask. */
1508 FALSE), /* pcrel_offset. */
1509
1510 HOWTO (R_V850_32_GOT, /* type. */
1511 0, /* rightshift. */
1512 2, /* size (0 = byte, 1 = short, 2 = long). */
1513 32, /* bitsize. */
1514 FALSE, /* pc_relative. */
1515 0, /* bitpos. */
1516 complain_overflow_unsigned, /* complain_on_overflow. */
1517 bfd_elf_generic_reloc, /* special_function. */
1518 "R_V850_32_GOT", /* name. */
1519 FALSE, /* partial_inplace. */
1520 0xffffffff, /* src_mask. */
1521 0xffffffff, /* dst_mask. */
1522 FALSE), /* pcrel_offset. */
1523
1524 /* Like R_V850_22_PCREL, but referring to the procedure linkage table
1525 entry for the symbol. */
1526 HOWTO (R_V850_22_PLT, /* type. */
1527 1, /* rightshift. */
1528 2, /* size (0 = byte, 1 = short, 2 = long). */
1529 22, /* bitsize. */
1530 TRUE, /* pc_relative. */
1531 7, /* bitpos. */
1532 complain_overflow_signed, /* complain_on_overflow. */
1533 bfd_elf_generic_reloc, /* special_function. */
1534 "R_V850_22_PLT", /* name. */
1535 FALSE, /* partial_inplace. */
1536 0x07ffff80, /* src_mask. */
1537 0x07ffff80, /* dst_mask. */
1538 TRUE), /* pcrel_offset. */
1539
1540 HOWTO (R_V850_32_PLT, /* type. */
1541 1, /* rightshift. */
1542 2, /* size (0 = byte, 1 = short, 2 = long). */
1543 32, /* bitsize. */
1544 TRUE, /* pc_relative. */
1545 1, /* bitpos. */
1546 complain_overflow_signed, /* complain_on_overflow. */
1547 bfd_elf_generic_reloc, /* special_function. */
1548 "R_V850_32_PLT", /* name. */
1549 FALSE, /* partial_inplace. */
1550 0xffffffff, /* src_mask. */
1551 0xffffffff, /* dst_mask. */
1552 TRUE), /* pcrel_offset. */
1553
1554 /* This is used only by the dynamic linker. The symbol should exist
1555 both in the object being run and in some shared library. The
1556 dynamic linker copies the data addressed by the symbol from the
1557 shared library into the object, because the object being
1558 run has to have the data at some particular address. */
1559 HOWTO (R_V850_COPY, /* type. */
1560 0, /* rightshift. */
1561 2, /* size (0 = byte, 1 = short, 2 = long). */
1562 32, /* bitsize. */
1563 FALSE, /* pc_relative. */
1564 0, /* bitpos. */
1565 complain_overflow_bitfield, /* complain_on_overflow. */
1566 bfd_elf_generic_reloc, /* special_function. */
1567 "R_V850_COPY", /* name. */
1568 FALSE, /* partial_inplace. */
1569 0xffffffff, /* src_mask. */
1570 0xffffffff, /* dst_mask. */
1571 FALSE), /* pcrel_offset. */
1572
1573 /* Like R_M32R_24, but used when setting global offset table
1574 entries. */
1575 HOWTO (R_V850_GLOB_DAT, /* type. */
1576 0, /* rightshift. */
1577 2, /* size (0 = byte, 1 = short, 2 = long) */
1578 32, /* bitsize. */
1579 FALSE, /* pc_relative. */
1580 0, /* bitpos. */
1581 complain_overflow_bitfield, /* complain_on_overflow. */
1582 bfd_elf_generic_reloc, /* special_function. */
1583 "R_V850_GLOB_DAT", /* name. */
1584 FALSE, /* partial_inplace. */
1585 0xffffffff, /* src_mask. */
1586 0xffffffff, /* dst_mask. */
1587 FALSE), /* pcrel_offset. */
1588
1589 /* Marks a procedure linkage table entry for a symbol. */
1590 HOWTO (R_V850_JMP_SLOT, /* type. */
1591 0, /* rightshift. */
1592 2, /* size (0 = byte, 1 = short, 2 = long) */
1593 32, /* bitsize. */
1594 FALSE, /* pc_relative. */
1595 0, /* bitpos. */
1596 complain_overflow_bitfield, /* complain_on_overflow. */
1597 bfd_elf_generic_reloc, /* special_function. */
1598 "R_V850_JMP_SLOT", /* name. */
1599 FALSE, /* partial_inplace. */
1600 0xffffffff, /* src_mask. */
1601 0xffffffff, /* dst_mask. */
1602 FALSE), /* pcrel_offset. */
1603
1604 /* Used only by the dynamic linker. When the object is run, this
1605 longword is set to the load address of the object, plus the
1606 addend. */
1607 HOWTO (R_V850_RELATIVE, /* type. */
1608 0, /* rightshift. */
1609 2, /* size (0 = byte, 1 = short, 2 = long) */
1610 32, /* bitsize. */
1611 FALSE, /* pc_relative. */
1612 0, /* bitpos. */
1613 complain_overflow_bitfield, /* complain_on_overflow. */
1614 bfd_elf_generic_reloc, /* special_function. */
1615 "R_V850_RELATIVE", /* name. */
1616 FALSE, /* partial_inplace. */
1617 0xffffffff, /* src_mask. */
1618 0xffffffff, /* dst_mask. */
1619 FALSE), /* pcrel_offset. */
1620
1621 HOWTO (R_V850_16_GOTOFF, /* type. */
1622 0, /* rightshift. */
1623 2, /* size (0 = byte, 1 = short, 2 = long) */
1624 16, /* bitsize. */
1625 FALSE, /* pc_relative. */
1626 0, /* bitpos. */
1627 complain_overflow_bitfield, /* complain_on_overflow. */
1628 bfd_elf_generic_reloc, /* special_function. */
1629 "R_V850_16_GOTOFF", /* name. */
1630 FALSE, /* partial_inplace. */
1631 0xffff, /* src_mask. */
1632 0xffff, /* dst_mask. */
1633 FALSE), /* pcrel_offset. */
1634
1635 HOWTO (R_V850_32_GOTOFF, /* type. */
1636 0, /* rightshift. */
1637 2, /* size (0 = byte, 1 = short, 2 = long) */
1638 32, /* bitsize. */
1639 FALSE, /* pc_relative. */
1640 0, /* bitpos. */
1641 complain_overflow_bitfield, /* complain_on_overflow. */
1642 bfd_elf_generic_reloc, /* special_function. */
1643 "R_V850_32_GOTOFF", /* name. */
1644 FALSE, /* partial_inplace. */
1645 0xffffffff, /* src_mask. */
1646 0xffffffff, /* dst_mask. */
1647 FALSE), /* pcrel_offset. */
1648
1649 HOWTO (R_V850_CODE, /* type. */
1650 0, /* rightshift. */
1651 1, /* size (0 = byte, 1 = short, 2 = long) */
1652 0, /* bitsize. */
1653 FALSE, /* pc_relative. */
1654 0, /* bitpos. */
1655 complain_overflow_unsigned, /* complain_on_overflow. */
1656 v850_elf_ignore_reloc, /* special_function. */
1657 "R_V850_CODE", /* name. */
1658 FALSE, /* partial_inplace. */
1659 0, /* src_mask. */
1660 0, /* dst_mask. */
1661 TRUE), /* pcrel_offset. */
1662
1663 HOWTO (R_V850_DATA, /* type. */
1664 0, /* rightshift. */
1665 1, /* size (0 = byte, 1 = short, 2 = long) */
1666 0, /* bitsize. */
1667 FALSE, /* pc_relative. */
1668 0, /* bitpos. */
1669 complain_overflow_unsigned, /* complain_on_overflow. */
1670 v850_elf_ignore_reloc, /* special_function. */
1671 "R_V850_DATA", /* name. */
1672 FALSE, /* partial_inplace. */
1673 0, /* src_mask. */
1674 0, /* dst_mask. */
1675 TRUE), /* pcrel_offset. */
1676
1677 };
1678
1679 /* Map BFD reloc types to V850 ELF reloc types. */
1680
1681 struct v850_elf_reloc_map
1682 {
1683 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
1684 unsigned char. */
1685 bfd_reloc_code_real_type bfd_reloc_val;
1686 unsigned int elf_reloc_val;
1687 };
1688
1689 static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
1690 {
1691 { BFD_RELOC_NONE, R_V850_NONE },
1692 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
1693 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
1694 { BFD_RELOC_HI16_S, R_V850_HI16_S },
1695 { BFD_RELOC_HI16, R_V850_HI16 },
1696 { BFD_RELOC_LO16, R_V850_LO16 },
1697 { BFD_RELOC_32, R_V850_ABS32 },
1698 { BFD_RELOC_32_PCREL, R_V850_REL32 },
1699 { BFD_RELOC_16, R_V850_16 },
1700 { BFD_RELOC_8, R_V850_8 },
1701 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
1702 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
1703 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
1704 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
1705 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
1706 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
1707 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
1708 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
1709 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
1710 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
1711 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET },
1712 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
1713 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
1714 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
1715 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
1716 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
1717 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
1718 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
1719 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
1720 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
1721 { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL },
1722 { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL },
1723 { BFD_RELOC_V850_23, R_V850_23 },
1724 { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL },
1725 { BFD_RELOC_V850_32_ABS, R_V850_32_ABS },
1726 { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 },
1727 { BFD_RELOC_V850_16_S1, R_V850_16_S1 },
1728 { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 },
1729 { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET },
1730 { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL },
1731 { BFD_RELOC_V850_16_GOT, R_V850_16_GOT },
1732 { BFD_RELOC_V850_32_GOT, R_V850_32_GOT },
1733 { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT },
1734 { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT },
1735 { BFD_RELOC_V850_COPY, R_V850_COPY },
1736 { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT },
1737 { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT },
1738 { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE },
1739 { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF },
1740 { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF },
1741 { BFD_RELOC_V850_CODE, R_V850_CODE },
1742 { BFD_RELOC_V850_DATA, R_V850_DATA },
1743 };
1744
1745 #define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \
1746 HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
1747 bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE)
1748
1749 #define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE)
1750
1751 #define bfd_elf_v850_reloc v850_elf_reloc
1752
1753 /* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry
1754 in this array match the index of the entry in the array minus 0x30.
1755 See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup()
1756 and v800_elf_info_to_howto(). */
1757
1758 static reloc_howto_type v800_elf_howto_table[] =
1759 {
1760 V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */
1761 V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic),
1762 V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic),
1763 V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic),
1764 V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic),
1765 V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic),
1766 V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic),
1767 V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850),
1768 V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850),
1769 V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850),
1770 V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850),
1771 V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850),
1772 V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850),
1773 V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic),
1774 V800_EMPTY (R_V810_reserved1),
1775 V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850),
1776 V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850),
1777 V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850),
1778 V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850),
1779 V800_EMPTY (R_V810_reserved2),
1780 V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850),
1781 V800_EMPTY (R_V810_reserved3),
1782 V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic),
1783 V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850),
1784 V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850),
1785 V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850),
1786 V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850),
1787 V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850),
1788 V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850),
1789 V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850),
1790 V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850),
1791 V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850),
1792 V800_EMPTY (R_V810_reserved4),
1793 V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850),
1794 V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850),
1795 V800_EMPTY (R_V810_reserved5),
1796 V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850),
1797 V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850),
1798 V800_EMPTY (R_V810_reserved6),
1799 V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850),
1800 V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850),
1801 V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850),
1802 V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850),
1803 V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850),
1804 V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850),
1805 V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850),
1806 V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850),
1807 V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic),
1808 V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic),
1809 V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850),
1810 V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850),
1811 V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850),
1812 V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850),
1813 V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850),
1814 V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850),
1815 V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850),
1816 V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850),
1817 V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850),
1818 V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850),
1819 V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850),
1820 V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850),
1821 V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850),
1822 V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850),
1823 V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850),
1824 V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850),
1825 V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850),
1826 V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850),
1827 V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850),
1828 V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850),
1829 V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850),
1830 V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850),
1831 V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850),
1832 V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850),
1833 V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850),
1834 V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850),
1835 V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850),
1836 V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850),
1837 V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850),
1838 V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850),
1839 V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850),
1840 V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850),
1841 V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850),
1842 V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850),
1843 V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850),
1844 V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850),
1845 V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850)
1846 };
1847 \f
1848 /* Map a bfd relocation into the appropriate howto structure. */
1849
1850 static reloc_howto_type *
1851 v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1852 bfd_reloc_code_real_type code)
1853 {
1854 unsigned int i;
1855
1856 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
1857 if (v850_elf_reloc_map[i].bfd_reloc_val == code)
1858 {
1859 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
1860
1861 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
1862
1863 return v850_elf_howto_table + elf_reloc_val;
1864 }
1865
1866 return NULL;
1867 }
1868
1869 static reloc_howto_type *
1870 v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1871 const char *r_name)
1872 {
1873 unsigned int i;
1874
1875 for (i = 0;
1876 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
1877 i++)
1878 if (v850_elf_howto_table[i].name != NULL
1879 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
1880 return &v850_elf_howto_table[i];
1881
1882 return NULL;
1883 }
1884 \f
1885 /* Set the howto pointer for an V850 ELF reloc. */
1886
1887 static bfd_boolean
1888 v850_elf_info_to_howto_rel (bfd *abfd,
1889 arelent *cache_ptr,
1890 Elf_Internal_Rela *dst)
1891 {
1892 unsigned int r_type;
1893
1894 r_type = ELF32_R_TYPE (dst->r_info);
1895 if (r_type >= (unsigned int) R_V850_max)
1896 {
1897 /* xgettext:c-format */
1898 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1899 abfd, r_type);
1900 bfd_set_error (bfd_error_bad_value);
1901 return FALSE;
1902 }
1903 cache_ptr->howto = &v850_elf_howto_table[r_type];
1904 return TRUE;
1905 }
1906
1907 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1908
1909 static bfd_boolean
1910 v850_elf_info_to_howto_rela (bfd *abfd,
1911 arelent * cache_ptr,
1912 Elf_Internal_Rela *dst)
1913 {
1914 unsigned int r_type;
1915
1916 r_type = ELF32_R_TYPE (dst->r_info);
1917 if (r_type >= (unsigned int) R_V850_max)
1918 {
1919 /* xgettext:c-format */
1920 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1921 abfd, r_type);
1922 bfd_set_error (bfd_error_bad_value);
1923 return FALSE;
1924 }
1925 cache_ptr->howto = &v850_elf_howto_table[r_type];
1926 return TRUE;
1927 }
1928 \f
1929 static bfd_boolean
1930 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1931 {
1932 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1933 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1934 }
1935
1936 static bfd_boolean
1937 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1938 {
1939 return v850_elf_is_local_label_name (abfd, sym->name);
1940 }
1941 \f
1942 /* We overload some of the bfd_reloc error codes for own purposes. */
1943 #define bfd_reloc_gp_not_found bfd_reloc_other
1944 #define bfd_reloc_ep_not_found bfd_reloc_continue
1945 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1946
1947 /* Perform a relocation as part of a final link. */
1948
1949 static bfd_reloc_status_type
1950 v850_elf_final_link_relocate (reloc_howto_type *howto,
1951 bfd *input_bfd,
1952 bfd *output_bfd ATTRIBUTE_UNUSED,
1953 asection *input_section,
1954 bfd_byte *contents,
1955 bfd_vma offset,
1956 bfd_vma value,
1957 bfd_vma addend,
1958 struct bfd_link_info *info,
1959 asection *sym_sec,
1960 int is_local ATTRIBUTE_UNUSED)
1961 {
1962 unsigned int r_type = howto->type;
1963 bfd_byte *hit_data = contents + offset;
1964
1965 /* Adjust the value according to the relocation. */
1966 switch (r_type)
1967 {
1968 case R_V850_PC9:
1969 case R_V850_9_PCREL:
1970 value -= (input_section->output_section->vma
1971 + input_section->output_offset);
1972 value -= offset;
1973 break;
1974
1975 case R_V850_PC16U:
1976 case R_V850_16_PCREL:
1977 value -= (input_section->output_section->vma
1978 + input_section->output_offset
1979 + offset);
1980
1981 /* If the sign extension will corrupt the value then we have overflowed. */
1982 if ((value & 0xffff0000) != 0xffff0000)
1983 return bfd_reloc_overflow;
1984
1985 break;
1986
1987 case R_V850_PC17:
1988 case R_V850_17_PCREL:
1989 value -= (input_section->output_section->vma
1990 + input_section->output_offset
1991 + offset);
1992
1993 /* If the sign extension will corrupt the value then we have overflowed. */
1994 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1995 return bfd_reloc_overflow;
1996
1997 value = SEXT17 (value);
1998 break;
1999
2000 case R_V850_PCR22:
2001 case R_V850_22_PCREL:
2002 value -= (input_section->output_section->vma
2003 + input_section->output_offset
2004 + offset);
2005
2006 /* If the sign extension will corrupt the value then we have overflowed. */
2007 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2008 return bfd_reloc_overflow;
2009
2010 /* Only the bottom 22 bits of the PC are valid. */
2011 value = SEXT22 (value);
2012 break;
2013
2014 case R_V850_PC32:
2015 case R_V850_32_PCREL:
2016 value -= (input_section->output_section->vma
2017 + input_section->output_offset
2018 + offset);
2019 break;
2020
2021 case R_V850_32_ABS:
2022 case R_V850_23:
2023 case R_V850_HI16_S:
2024 case R_V850_HI16:
2025 case R_V850_LO16:
2026 case R_V850_LO16_S1:
2027 case R_V850_LO16_SPLIT_OFFSET:
2028 case R_V850_16:
2029 case R_V850_ABS32:
2030 case R_V850_8:
2031 case R_V810_BYTE:
2032 case R_V810_HWORD:
2033 case R_V810_WORD:
2034 case R_V810_WLO:
2035 case R_V810_WHI:
2036 case R_V810_WHI1:
2037 case R_V810_WLO_1:
2038 case R_V850_WLO23:
2039 case R_V850_BLO:
2040 break;
2041
2042 case R_V850_ZDA_15_16_OFFSET:
2043 case R_V850_ZDA_16_16_OFFSET:
2044 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2045 if (sym_sec == NULL)
2046 return bfd_reloc_undefined;
2047
2048 value -= sym_sec->output_section->vma;
2049 break;
2050
2051 case R_V850_SDA_15_16_OFFSET:
2052 case R_V850_SDA_16_16_OFFSET:
2053 case R_V850_SDA_16_16_SPLIT_OFFSET:
2054 case R_V810_GPWLO_1:
2055 {
2056 unsigned long gp;
2057 struct bfd_link_hash_entry * h;
2058
2059 if (sym_sec == NULL)
2060 return bfd_reloc_undefined;
2061
2062 /* Get the value of __gp. */
2063 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2064 if (h == NULL
2065 || h->type != bfd_link_hash_defined)
2066 return bfd_reloc_gp_not_found;
2067
2068 gp = (h->u.def.value
2069 + h->u.def.section->output_section->vma
2070 + h->u.def.section->output_offset);
2071
2072 value -= sym_sec->output_section->vma;
2073 value -= (gp - sym_sec->output_section->vma);
2074 }
2075 break;
2076
2077 case R_V850_TDA_4_4_OFFSET:
2078 case R_V850_TDA_4_5_OFFSET:
2079 case R_V850_TDA_7_7_OFFSET:
2080 case R_V850_TDA_7_8_OFFSET:
2081 case R_V850_TDA_6_8_OFFSET:
2082 case R_V850_TDA_16_16_OFFSET:
2083 {
2084 unsigned long ep;
2085 struct bfd_link_hash_entry * h;
2086
2087 /* Get the value of __ep. */
2088 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2089 if (h == NULL
2090 || h->type != bfd_link_hash_defined)
2091 return bfd_reloc_ep_not_found;
2092
2093 ep = (h->u.def.value
2094 + h->u.def.section->output_section->vma
2095 + h->u.def.section->output_offset);
2096
2097 value -= ep;
2098 }
2099 break;
2100
2101 case R_V850_CALLT_6_7_OFFSET:
2102 {
2103 unsigned long ctbp;
2104 struct bfd_link_hash_entry * h;
2105
2106 /* Get the value of __ctbp. */
2107 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2108 if (h == NULL
2109 || h->type != bfd_link_hash_defined)
2110 return bfd_reloc_ctbp_not_found;
2111
2112 ctbp = (h->u.def.value
2113 + h->u.def.section->output_section->vma
2114 + h->u.def.section->output_offset);
2115 value -= ctbp;
2116 }
2117 break;
2118
2119 case R_V850_CALLT_15_16_OFFSET:
2120 case R_V850_CALLT_16_16_OFFSET:
2121 {
2122 unsigned long ctbp;
2123 struct bfd_link_hash_entry * h;
2124
2125 if (sym_sec == NULL)
2126 return bfd_reloc_undefined;
2127
2128 /* Get the value of __ctbp. */
2129 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2130 if (h == NULL
2131 || h->type != bfd_link_hash_defined)
2132 return bfd_reloc_ctbp_not_found;
2133
2134 ctbp = (h->u.def.value
2135 + h->u.def.section->output_section->vma
2136 + h->u.def.section->output_offset);
2137
2138 value -= sym_sec->output_section->vma;
2139 value -= (ctbp - sym_sec->output_section->vma);
2140 }
2141 break;
2142
2143 case R_V850_NONE:
2144 case R_V810_NONE:
2145 case R_V850_GNU_VTINHERIT:
2146 case R_V850_GNU_VTENTRY:
2147 case R_V850_LONGCALL:
2148 case R_V850_LONGJUMP:
2149 case R_V850_ALIGN:
2150 return bfd_reloc_ok;
2151
2152 default:
2153 #ifdef DEBUG
2154 _bfd_error_handler ("%pB: unsupported relocation type %#x",
2155 input_bfd, r_type);
2156 #endif
2157 return bfd_reloc_notsupported;
2158 }
2159
2160 /* Perform the relocation. */
2161 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2162 }
2163 \f
2164 /* Relocate an V850 ELF section. */
2165
2166 static bfd_boolean
2167 v850_elf_relocate_section (bfd *output_bfd,
2168 struct bfd_link_info *info,
2169 bfd *input_bfd,
2170 asection *input_section,
2171 bfd_byte *contents,
2172 Elf_Internal_Rela *relocs,
2173 Elf_Internal_Sym *local_syms,
2174 asection **local_sections)
2175 {
2176 Elf_Internal_Shdr *symtab_hdr;
2177 struct elf_link_hash_entry **sym_hashes;
2178 Elf_Internal_Rela *rel;
2179 Elf_Internal_Rela *relend;
2180
2181 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2182 sym_hashes = elf_sym_hashes (input_bfd);
2183
2184 /* Reset the list of remembered HI16S relocs to empty. */
2185 free_hi16s = previous_hi16s;
2186 previous_hi16s = NULL;
2187 hi16s_counter = 0;
2188
2189 rel = relocs;
2190 relend = relocs + input_section->reloc_count;
2191 for (; rel < relend; rel++)
2192 {
2193 unsigned int r_type;
2194 reloc_howto_type *howto;
2195 unsigned long r_symndx;
2196 Elf_Internal_Sym *sym;
2197 asection *sec;
2198 struct elf_link_hash_entry *h;
2199 bfd_vma relocation;
2200 bfd_reloc_status_type r;
2201
2202 r_symndx = ELF32_R_SYM (rel->r_info);
2203 r_type = ELF32_R_TYPE (rel->r_info);
2204
2205 if (r_type == R_V850_GNU_VTENTRY
2206 || r_type == R_V850_GNU_VTINHERIT)
2207 continue;
2208
2209 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2210 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2211 else
2212 howto = v850_elf_howto_table + r_type;
2213
2214 BFD_ASSERT (r_type == howto->type);
2215
2216 h = NULL;
2217 sym = NULL;
2218 sec = NULL;
2219 if (r_symndx < symtab_hdr->sh_info)
2220 {
2221 sym = local_syms + r_symndx;
2222 sec = local_sections[r_symndx];
2223 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2224 }
2225 else
2226 {
2227 bfd_boolean unresolved_reloc, warned, ignored;
2228
2229 /* Note - this check is delayed until now as it is possible and
2230 valid to have a file without any symbols but with relocs that
2231 can be processed. */
2232 if (sym_hashes == NULL)
2233 {
2234 info->callbacks->warning
2235 (info, "no hash table available",
2236 NULL, input_bfd, input_section, (bfd_vma) 0);
2237
2238 return FALSE;
2239 }
2240
2241 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2242 r_symndx, symtab_hdr, sym_hashes,
2243 h, sec, relocation,
2244 unresolved_reloc, warned, ignored);
2245 }
2246
2247 if (sec != NULL && discarded_section (sec))
2248 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2249 rel, 1, relend, howto, 0, contents);
2250
2251 if (bfd_link_relocatable (info))
2252 continue;
2253
2254 /* FIXME: We should use the addend, but the COFF relocations don't. */
2255 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2256 input_section,
2257 contents, rel->r_offset,
2258 relocation, rel->r_addend,
2259 info, sec, h == NULL);
2260
2261 if (r != bfd_reloc_ok)
2262 {
2263 const char * name;
2264 const char * msg = NULL;
2265
2266 if (h != NULL)
2267 name = h->root.root.string;
2268 else
2269 {
2270 name = (bfd_elf_string_from_elf_section
2271 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2272 if (name == NULL || *name == '\0')
2273 name = bfd_section_name (sec);
2274 }
2275
2276 switch ((int) r)
2277 {
2278 case bfd_reloc_overflow:
2279 (*info->callbacks->reloc_overflow)
2280 (info, (h ? &h->root : NULL), name, howto->name,
2281 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2282 break;
2283
2284 case bfd_reloc_undefined:
2285 (*info->callbacks->undefined_symbol)
2286 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2287 break;
2288
2289 case bfd_reloc_outofrange:
2290 msg = _("internal error: out of range error");
2291 goto common_error;
2292
2293 case bfd_reloc_notsupported:
2294 msg = _("internal error: unsupported relocation error");
2295 goto common_error;
2296
2297 case bfd_reloc_dangerous:
2298 msg = _("internal error: dangerous relocation");
2299 goto common_error;
2300
2301 case bfd_reloc_gp_not_found:
2302 msg = _("could not locate special linker symbol __gp");
2303 goto common_error;
2304
2305 case bfd_reloc_ep_not_found:
2306 msg = _("could not locate special linker symbol __ep");
2307 goto common_error;
2308
2309 case bfd_reloc_ctbp_not_found:
2310 msg = _("could not locate special linker symbol __ctbp");
2311 goto common_error;
2312
2313 default:
2314 msg = _("internal error: unknown error");
2315 /* fall through */
2316
2317 common_error:
2318 (*info->callbacks->warning) (info, msg, name, input_bfd,
2319 input_section, rel->r_offset);
2320 break;
2321 }
2322 }
2323 }
2324
2325 return TRUE;
2326 }
2327
2328 static asection *
2329 v850_elf_gc_mark_hook (asection *sec,
2330 struct bfd_link_info *info,
2331 Elf_Internal_Rela *rel,
2332 struct elf_link_hash_entry *h,
2333 Elf_Internal_Sym *sym)
2334 {
2335 if (h != NULL)
2336 switch (ELF32_R_TYPE (rel->r_info))
2337 {
2338 case R_V850_GNU_VTINHERIT:
2339 case R_V850_GNU_VTENTRY:
2340 return NULL;
2341 }
2342
2343 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2344 }
2345
2346 static void
2347 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2348 {
2349 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2350
2351 bfd_put_32 (abfd, 4, data + 0);
2352 bfd_put_32 (abfd, 4, data + 4);
2353 bfd_put_32 (abfd, note, data + 8);
2354 memcpy (data + 12, V850_NOTE_NAME, 4);
2355 bfd_put_32 (abfd, val, data + 16);
2356 }
2357
2358 /* Create the note section if not already present. This is done early so
2359 that the linker maps the sections to the right place in the output. */
2360
2361 static asection *
2362 v850_elf_make_note_section (bfd * abfd)
2363 {
2364 asection *s;
2365 bfd_byte *data;
2366 flagword flags;
2367 enum v850_notes id;
2368
2369 /* Make the note section. */
2370 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2371
2372 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2373 if (s == NULL)
2374 return NULL;
2375
2376 if (!bfd_set_section_alignment (s, 2))
2377 return NULL;
2378
2379 /* Allocate space for all known notes. */
2380 if (!bfd_set_section_size (s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2381 return NULL;
2382
2383 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2384 if (data == NULL)
2385 return NULL;
2386
2387 s->contents = data;
2388
2389 /* Provide default (= uninitilaised) values for all of the notes. */
2390 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2391 v850_set_note (abfd, s, id, 0);
2392
2393 return s;
2394 }
2395
2396 /* Create the note section if not already present. This is done early so
2397 that the linker maps the sections to the right place in the output. */
2398
2399 bfd_boolean
2400 v850_elf_create_sections (struct bfd_link_info * info)
2401 {
2402 bfd * ibfd;
2403
2404 /* If we already have a note section, do not make another. */
2405 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2406 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2407 return TRUE;
2408
2409 return v850_elf_make_note_section (info->input_bfds) != NULL;
2410 }
2411
2412 bfd_boolean
2413 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2414 {
2415 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2416
2417 if (val > 2)
2418 /* At the moment, no known note has a value over 2. */
2419 return FALSE;
2420
2421 if (notes == NULL)
2422 notes = v850_elf_make_note_section (abfd);
2423 if (notes == NULL)
2424 return FALSE;
2425
2426 v850_set_note (abfd, notes, note, val);
2427 return TRUE;
2428 }
2429
2430 /* Copy a v850 note section from one object module to another. */
2431
2432 static void
2433 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2434 {
2435 asection * onotes;
2436 asection * inotes;
2437
2438 /* If the output bfd does not have a note section, then
2439 skip the merge. The normal input to output section
2440 copying will take care of everythng for us. */
2441 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2442 return;
2443
2444 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2445 return;
2446
2447 if (bfd_section_size (inotes) == bfd_section_size (onotes))
2448 {
2449 bfd_byte * icont;
2450 bfd_byte * ocont;
2451
2452 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2453 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2454
2455 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2456 /* If the output is being stripped then it is possible for
2457 the notes section to disappear. In this case do nothing. */
2458 return;
2459
2460 /* Copy/overwrite notes from the input to the output. */
2461 memcpy (ocont, icont, bfd_section_size (onotes));
2462 }
2463 }
2464
2465 /* Copy backend specific data from one object module to another. */
2466
2467 static bfd_boolean
2468 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2469 {
2470 v850_elf_copy_notes (ibfd, obfd);
2471 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2472 }
2473 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2474
2475 static bfd_boolean
2476 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2477 {
2478 asection * onotes;
2479 asection * inotes;
2480 bfd_boolean result = TRUE;
2481
2482 /* If the output bfd does not have a note section, then
2483 skip the merge. The normal input to output section
2484 copying will take care of everythng for us. */
2485 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2486 return TRUE;
2487
2488 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2489 {
2490 enum v850_notes id;
2491 bfd_byte * icont;
2492 bfd_byte * ocont;
2493
2494 BFD_ASSERT (bfd_section_size (inotes) == bfd_section_size (onotes));
2495
2496 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2497 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2498
2499 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2500 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2501
2502 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2503 {
2504 unsigned int ival;
2505 unsigned int oval;
2506 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2507 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2508
2509 ival = bfd_get_32 (ibfd, idata);
2510 oval = bfd_get_32 (obfd, odata);
2511
2512 if (ival == 0 || ival == oval)
2513 continue;
2514
2515 if (oval == 0)
2516 {
2517 bfd_put_32 (obfd, ival, odata);
2518 v850_set_note (obfd, onotes, id, ival);
2519 continue;
2520 }
2521
2522 /* We have a mismatch. The ABI defines how to handle
2523 this siutation on a per note type basis. */
2524 switch (id)
2525 {
2526 case V850_NOTE_ALIGNMENT:
2527 if (oval == EF_RH850_DATA_ALIGN4)
2528 {
2529 _bfd_error_handler
2530 /* xgettext:c-format */
2531 (_("error: %pB needs 8-byte alignment but %pB is set for 4-byte alignment"),
2532 ibfd, obfd);
2533 result = FALSE;
2534 }
2535 else
2536 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2537 Leave the obfd alignment as it is. */
2538 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2539
2540 break;
2541
2542 case V850_NOTE_DATA_SIZE:
2543 if (oval == EF_RH850_DOUBLE32)
2544 {
2545 _bfd_error_handler
2546 /* xgettext:c-format */
2547 (_("error: %pB uses 64-bit doubles but "
2548 "%pB uses 32-bit doubles"), ibfd, obfd);
2549 result = FALSE;
2550 }
2551 else
2552 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2553 This is acceptable. Honest, that is what the ABI says. */
2554 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2555 break;
2556
2557 case V850_NOTE_FPU_INFO:
2558 if (oval == EF_RH850_FPU20)
2559 {
2560 _bfd_error_handler
2561 /* xgettext:c-format */
2562 (_("error: %pB uses FPU-3.0 but %pB only supports FPU-2.0"),
2563 ibfd, obfd);
2564 result = FALSE;
2565 }
2566 else
2567 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2568 BFD_ASSERT (oval == EF_RH850_FPU30);
2569
2570 break;
2571
2572 default:
2573 /* None of the other conflicts matter.
2574 Stick with the current output values. */
2575 break;
2576 }
2577 }
2578
2579 /* FIXME: We should also check for conflicts between the notes
2580 and the EF flags in the ELF header. */
2581 }
2582
2583 return result;
2584 }
2585
2586 static void
2587 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2588 {
2589 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2590
2591 switch (id)
2592 {
2593 case V850_NOTE_ALIGNMENT:
2594 fprintf (file, _(" alignment of 8-byte entities: "));
2595 switch (value)
2596 {
2597 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2598 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2599 case 0: fprintf (file, _("not set")); break;
2600 default: fprintf (file, _("unknown: %x"), value); break;
2601 }
2602 fputc ('\n', file);
2603 break;
2604
2605 case V850_NOTE_DATA_SIZE:
2606 fprintf (file, _(" size of doubles: "));
2607 switch (value)
2608 {
2609 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2610 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2611 case 0: fprintf (file, _("not set")); break;
2612 default: fprintf (file, _("unknown: %x"), value); break;
2613 }
2614 fputc ('\n', file);
2615 break;
2616
2617 case V850_NOTE_FPU_INFO:
2618 fprintf (file, _(" FPU support required: "));
2619 switch (value)
2620 {
2621 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2622 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2623 case 0: fprintf (file, _("none")); break;
2624 default: fprintf (file, _("unknown: %x"), value); break;
2625 }
2626 fputc ('\n', file);
2627 break;
2628
2629 case V850_NOTE_SIMD_INFO:
2630 fprintf (file, _("SIMD use: "));
2631 switch (value)
2632 {
2633 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2634 case 0: fprintf (file, _("no")); break;
2635 default: fprintf (file, _("unknown: %x"), value); break;
2636 }
2637 fputc ('\n', file);
2638 break;
2639
2640 case V850_NOTE_CACHE_INFO:
2641 fprintf (file, _("CACHE use: "));
2642 switch (value)
2643 {
2644 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2645 case 0: fprintf (file, _("no")); break;
2646 default: fprintf (file, _("unknown: %x"), value); break;
2647 }
2648 fputc ('\n', file);
2649 break;
2650
2651 case V850_NOTE_MMU_INFO:
2652 fprintf (file, _("MMU use: "));
2653 switch (value)
2654 {
2655 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2656 case 0: fprintf (file, _("no")); break;
2657 default: fprintf (file, _("unknown: %x"), value); break;
2658 }
2659 fputc ('\n', file);
2660 break;
2661
2662 default:
2663 BFD_ASSERT (0);
2664 }
2665 }
2666
2667 static void
2668 v850_elf_print_notes (bfd * abfd, FILE * file)
2669 {
2670 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2671 enum v850_notes id;
2672
2673 if (notes == NULL || notes->contents == NULL)
2674 return;
2675
2676 BFD_ASSERT (bfd_section_size (notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2677
2678 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2679 print_v850_note (abfd, file, notes->contents, id);
2680 }
2681
2682 /* Set the right machine number and architecture. */
2683
2684 static bfd_boolean
2685 v850_elf_object_p (bfd *abfd)
2686 {
2687 enum bfd_architecture arch;
2688 unsigned long mach;
2689
2690 switch (elf_elfheader (abfd)->e_machine)
2691 {
2692 case EM_V800:
2693 arch = bfd_arch_v850_rh850;
2694 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2695 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2696 break;
2697
2698 case EM_CYGNUS_V850:
2699 case EM_V850:
2700 arch = bfd_arch_v850;
2701 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2702 {
2703 default:
2704 case E_V850_ARCH: mach = bfd_mach_v850; break;
2705 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2706 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2707 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2708 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2709 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2710 }
2711 break;
2712
2713 default:
2714 return FALSE;
2715 }
2716
2717 return bfd_default_set_arch_mach (abfd, arch, mach);
2718 }
2719
2720 /* Store the machine number in the flags field. */
2721
2722 static bfd_boolean
2723 v850_elf_final_write_processing (bfd *abfd)
2724 {
2725 unsigned long val;
2726
2727 switch (bfd_get_arch (abfd))
2728 {
2729 case bfd_arch_v850_rh850:
2730 val = EF_RH850_ABI;
2731 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2732 val |= EF_V800_850E3;
2733 elf_elfheader (abfd)->e_flags |= val;
2734 break;
2735
2736 case bfd_arch_v850:
2737 switch (bfd_get_mach (abfd))
2738 {
2739 default:
2740 case bfd_mach_v850: val = E_V850_ARCH; break;
2741 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2742 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2743 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2744 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2745 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2746 }
2747 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2748 elf_elfheader (abfd)->e_flags |= val;
2749 break;
2750 default:
2751 break;
2752 }
2753 return _bfd_elf_final_write_processing (abfd);
2754 }
2755
2756 /* Function to keep V850 specific file flags. */
2757
2758 static bfd_boolean
2759 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2760 {
2761 BFD_ASSERT (!elf_flags_init (abfd)
2762 || elf_elfheader (abfd)->e_flags == flags);
2763
2764 elf_elfheader (abfd)->e_flags = flags;
2765 elf_flags_init (abfd) = TRUE;
2766 return TRUE;
2767 }
2768
2769 /* Merge backend specific data from an object file
2770 to the output object file when linking. */
2771
2772 static bfd_boolean
2773 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2774 {
2775 bfd *obfd = info->output_bfd;
2776 flagword out_flags;
2777 flagword in_flags;
2778 bfd_boolean result = TRUE;
2779
2780 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2781 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2782 return TRUE;
2783
2784 result &= v850_elf_merge_notes (ibfd, obfd);
2785
2786 in_flags = elf_elfheader (ibfd)->e_flags;
2787 out_flags = elf_elfheader (obfd)->e_flags;
2788
2789 if (! elf_flags_init (obfd))
2790 {
2791 /* If the input is the default architecture then do not
2792 bother setting the flags for the output architecture,
2793 instead allow future merges to do this. If no future
2794 merges ever set these flags then they will retain their
2795 unitialised values, which surprise surprise, correspond
2796 to the default values. */
2797 if (bfd_get_arch_info (ibfd)->the_default)
2798 return TRUE;
2799
2800 elf_flags_init (obfd) = TRUE;
2801 elf_elfheader (obfd)->e_flags = in_flags;
2802
2803 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2804 && bfd_get_arch_info (obfd)->the_default)
2805 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2806
2807 return result;
2808 }
2809
2810 /* Check flag compatibility. */
2811 if (in_flags == out_flags)
2812 return result;
2813
2814 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2815 {
2816 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2817 {
2818 _bfd_error_handler
2819 (_("%pB: architecture mismatch with previous modules"), ibfd);
2820 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2821 }
2822
2823 return result;
2824 }
2825
2826 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2827 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2828 {
2829 /* Allow earlier architecture binaries to be linked with later binaries.
2830 Set the output binary to the later architecture, except for v850e1,
2831 which we set to v850e. */
2832 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2833 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2834 return result;
2835
2836 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2837 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2838 {
2839 elf_elfheader (obfd)->e_flags =
2840 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2841 return result;
2842 }
2843
2844 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2845 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2846 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2847 {
2848 elf_elfheader (obfd)->e_flags =
2849 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2850 return result;
2851 }
2852
2853 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2854 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2855 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2856 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2857 {
2858 elf_elfheader (obfd)->e_flags =
2859 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2860 return result;
2861 }
2862
2863 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2864 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2865 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2866 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2867 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2868 {
2869 elf_elfheader (obfd)->e_flags =
2870 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2871 return result;
2872 }
2873
2874 _bfd_error_handler
2875 (_("%pB: architecture mismatch with previous modules"), ibfd);
2876 }
2877
2878 return result;
2879 }
2880
2881 /* Display the flags field. */
2882
2883 static bfd_boolean
2884 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2885 {
2886 FILE * file = (FILE *) ptr;
2887
2888 BFD_ASSERT (abfd != NULL && ptr != NULL);
2889
2890 _bfd_elf_print_private_bfd_data (abfd, ptr);
2891
2892 /* xgettext:c-format. */
2893 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2894
2895 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2896 {
2897 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2898 fprintf (file, _("unknown v850 architecture"));
2899 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2900 fprintf (file, _("v850 E3 architecture"));
2901 else
2902 fprintf (file, _("v850 architecture"));
2903 }
2904 else
2905 {
2906 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2907 {
2908 default:
2909 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2910 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2911 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2912 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2913 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2914 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2915 }
2916 }
2917
2918 fputc ('\n', file);
2919
2920 v850_elf_print_notes (abfd, file);
2921
2922 return TRUE;
2923 }
2924
2925 /* V850 ELF uses four common sections. One is the usual one, and the
2926 others are for (small) objects in one of the special data areas:
2927 small, tiny and zero. All the objects are kept together, and then
2928 referenced via the gp register, the ep register or the r0 register
2929 respectively, which yields smaller, faster assembler code. This
2930 approach is copied from elf32-mips.c. */
2931
2932 static asection v850_elf_scom_section;
2933 static asymbol v850_elf_scom_symbol;
2934 static asymbol * v850_elf_scom_symbol_ptr;
2935 static asection v850_elf_tcom_section;
2936 static asymbol v850_elf_tcom_symbol;
2937 static asymbol * v850_elf_tcom_symbol_ptr;
2938 static asection v850_elf_zcom_section;
2939 static asymbol v850_elf_zcom_symbol;
2940 static asymbol * v850_elf_zcom_symbol_ptr;
2941
2942 /* Given a BFD section, try to locate the
2943 corresponding ELF section index. */
2944
2945 static bfd_boolean
2946 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2947 asection *sec,
2948 int *retval)
2949 {
2950 if (strcmp (bfd_section_name (sec), ".scommon") == 0)
2951 *retval = SHN_V850_SCOMMON;
2952 else if (strcmp (bfd_section_name (sec), ".tcommon") == 0)
2953 *retval = SHN_V850_TCOMMON;
2954 else if (strcmp (bfd_section_name (sec), ".zcommon") == 0)
2955 *retval = SHN_V850_ZCOMMON;
2956 else
2957 return FALSE;
2958
2959 return TRUE;
2960 }
2961
2962 /* Handle the special V850 section numbers that a symbol may use. */
2963
2964 static void
2965 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2966 {
2967 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2968 unsigned int indx;
2969
2970 indx = elfsym->internal_elf_sym.st_shndx;
2971
2972 /* If the section index is an "ordinary" index, then it may
2973 refer to a v850 specific section created by the assembler.
2974 Check the section's type and change the index it matches.
2975
2976 FIXME: Should we alter the st_shndx field as well ? */
2977
2978 if (indx < elf_numsections (abfd))
2979 switch (elf_elfsections (abfd)[indx]->sh_type)
2980 {
2981 case SHT_V850_SCOMMON:
2982 indx = SHN_V850_SCOMMON;
2983 break;
2984
2985 case SHT_V850_TCOMMON:
2986 indx = SHN_V850_TCOMMON;
2987 break;
2988
2989 case SHT_V850_ZCOMMON:
2990 indx = SHN_V850_ZCOMMON;
2991 break;
2992
2993 default:
2994 break;
2995 }
2996
2997 switch (indx)
2998 {
2999 case SHN_V850_SCOMMON:
3000 if (v850_elf_scom_section.name == NULL)
3001 {
3002 /* Initialize the small common section. */
3003 v850_elf_scom_section.name = ".scommon";
3004 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
3005 v850_elf_scom_section.output_section = & v850_elf_scom_section;
3006 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
3007 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
3008 v850_elf_scom_symbol.name = ".scommon";
3009 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
3010 v850_elf_scom_symbol.section = & v850_elf_scom_section;
3011 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
3012 }
3013 asym->section = & v850_elf_scom_section;
3014 asym->value = elfsym->internal_elf_sym.st_size;
3015 break;
3016
3017 case SHN_V850_TCOMMON:
3018 if (v850_elf_tcom_section.name == NULL)
3019 {
3020 /* Initialize the tcommon section. */
3021 v850_elf_tcom_section.name = ".tcommon";
3022 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3023 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3024 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3025 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3026 v850_elf_tcom_symbol.name = ".tcommon";
3027 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3028 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3029 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3030 }
3031 asym->section = & v850_elf_tcom_section;
3032 asym->value = elfsym->internal_elf_sym.st_size;
3033 break;
3034
3035 case SHN_V850_ZCOMMON:
3036 if (v850_elf_zcom_section.name == NULL)
3037 {
3038 /* Initialize the zcommon section. */
3039 v850_elf_zcom_section.name = ".zcommon";
3040 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3041 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3042 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3043 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3044 v850_elf_zcom_symbol.name = ".zcommon";
3045 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3046 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3047 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3048 }
3049 asym->section = & v850_elf_zcom_section;
3050 asym->value = elfsym->internal_elf_sym.st_size;
3051 break;
3052 }
3053 }
3054
3055 /* Hook called by the linker routine which adds symbols from an object
3056 file. We must handle the special v850 section numbers here. */
3057
3058 static bfd_boolean
3059 v850_elf_add_symbol_hook (bfd *abfd,
3060 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3061 Elf_Internal_Sym *sym,
3062 const char **namep ATTRIBUTE_UNUSED,
3063 flagword *flagsp ATTRIBUTE_UNUSED,
3064 asection **secp,
3065 bfd_vma *valp)
3066 {
3067 unsigned int indx = sym->st_shndx;
3068
3069 /* If the section index is an "ordinary" index, then it may
3070 refer to a v850 specific section created by the assembler.
3071 Check the section's type and change the index it matches.
3072
3073 FIXME: Should we alter the st_shndx field as well ? */
3074
3075 if (indx < elf_numsections (abfd))
3076 switch (elf_elfsections (abfd)[indx]->sh_type)
3077 {
3078 case SHT_V850_SCOMMON:
3079 indx = SHN_V850_SCOMMON;
3080 break;
3081
3082 case SHT_V850_TCOMMON:
3083 indx = SHN_V850_TCOMMON;
3084 break;
3085
3086 case SHT_V850_ZCOMMON:
3087 indx = SHN_V850_ZCOMMON;
3088 break;
3089
3090 default:
3091 break;
3092 }
3093
3094 switch (indx)
3095 {
3096 case SHN_V850_SCOMMON:
3097 *secp = bfd_make_section_old_way (abfd, ".scommon");
3098 (*secp)->flags |= SEC_IS_COMMON;
3099 *valp = sym->st_size;
3100 break;
3101
3102 case SHN_V850_TCOMMON:
3103 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3104 (*secp)->flags |= SEC_IS_COMMON;
3105 *valp = sym->st_size;
3106 break;
3107
3108 case SHN_V850_ZCOMMON:
3109 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3110 (*secp)->flags |= SEC_IS_COMMON;
3111 *valp = sym->st_size;
3112 break;
3113 }
3114
3115 return TRUE;
3116 }
3117
3118 static int
3119 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3120 const char *name ATTRIBUTE_UNUSED,
3121 Elf_Internal_Sym *sym,
3122 asection *input_sec,
3123 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3124 {
3125 /* If we see a common symbol, which implies a relocatable link, then
3126 if a symbol was in a special common section in an input file, mark
3127 it as a special common in the output file. */
3128
3129 if (sym->st_shndx == SHN_COMMON)
3130 {
3131 if (strcmp (input_sec->name, ".scommon") == 0)
3132 sym->st_shndx = SHN_V850_SCOMMON;
3133 else if (strcmp (input_sec->name, ".tcommon") == 0)
3134 sym->st_shndx = SHN_V850_TCOMMON;
3135 else if (strcmp (input_sec->name, ".zcommon") == 0)
3136 sym->st_shndx = SHN_V850_ZCOMMON;
3137 }
3138
3139 /* The price we pay for using h->other unused bits as flags in the
3140 linker is cleaning up after ourselves. */
3141
3142 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3143 | V850_OTHER_ERROR);
3144
3145 return 1;
3146 }
3147
3148 static bfd_boolean
3149 v850_elf_section_from_shdr (bfd *abfd,
3150 Elf_Internal_Shdr *hdr,
3151 const char *name,
3152 int shindex)
3153 {
3154 /* There ought to be a place to keep ELF backend specific flags, but
3155 at the moment there isn't one. We just keep track of the
3156 sections by their name, instead. */
3157
3158 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3159 return FALSE;
3160
3161 switch (hdr->sh_type)
3162 {
3163 case SHT_V850_SCOMMON:
3164 case SHT_V850_TCOMMON:
3165 case SHT_V850_ZCOMMON:
3166 if (!bfd_set_section_flags (hdr->bfd_section,
3167 (bfd_section_flags (hdr->bfd_section)
3168 | SEC_IS_COMMON)))
3169 return FALSE;
3170 }
3171
3172 return TRUE;
3173 }
3174
3175 /* Set the correct type for a V850 ELF section. We do this
3176 by the section name, which is a hack, but ought to work. */
3177
3178 static bfd_boolean
3179 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3180 Elf_Internal_Shdr *hdr,
3181 asection *sec)
3182 {
3183 const char * name;
3184
3185 name = bfd_section_name (sec);
3186
3187 if (strcmp (name, ".scommon") == 0)
3188 hdr->sh_type = SHT_V850_SCOMMON;
3189 else if (strcmp (name, ".tcommon") == 0)
3190 hdr->sh_type = SHT_V850_TCOMMON;
3191 else if (strcmp (name, ".zcommon") == 0)
3192 hdr->sh_type = SHT_V850_ZCOMMON;
3193 /* Tweak the section type of .note.renesas. */
3194 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3195 {
3196 hdr->sh_type = SHT_RENESAS_INFO;
3197 hdr->sh_entsize = SIZEOF_V850_NOTE;
3198 }
3199
3200 return TRUE;
3201 }
3202
3203 /* Delete some bytes from a section while relaxing. */
3204
3205 static bfd_boolean
3206 v850_elf_relax_delete_bytes (bfd *abfd,
3207 asection *sec,
3208 bfd_vma addr,
3209 bfd_vma toaddr,
3210 int count)
3211 {
3212 Elf_Internal_Shdr *symtab_hdr;
3213 Elf32_External_Sym *extsyms;
3214 Elf32_External_Sym *esym;
3215 Elf32_External_Sym *esymend;
3216 int sym_index;
3217 unsigned int sec_shndx;
3218 bfd_byte *contents;
3219 Elf_Internal_Rela *irel;
3220 Elf_Internal_Rela *irelend;
3221 struct elf_link_hash_entry *sym_hash;
3222 Elf_External_Sym_Shndx *shndx;
3223
3224 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3225 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3226
3227 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3228
3229 contents = elf_section_data (sec)->this_hdr.contents;
3230
3231 /* The deletion must stop at the next ALIGN reloc for an alignment
3232 power larger than the number of bytes we are deleting. */
3233
3234 /* Actually delete the bytes. */
3235 #if (DEBUG_RELAX & 2)
3236 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3237 sec->name, addr, toaddr, count );
3238 #endif
3239 memmove (contents + addr, contents + addr + count,
3240 toaddr - addr - count);
3241 memset (contents + toaddr-count, 0, count);
3242
3243 /* Adjust all the relocs. */
3244 irel = elf_section_data (sec)->relocs;
3245 irelend = irel + sec->reloc_count;
3246 if (elf_symtab_shndx_list (abfd))
3247 {
3248 Elf_Internal_Shdr *shndx_hdr;
3249
3250 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3251 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3252 }
3253 else
3254 {
3255 shndx = NULL;
3256 }
3257
3258 for (; irel < irelend; irel++)
3259 {
3260 bfd_vma raddr, paddr, symval;
3261 Elf_Internal_Sym isym;
3262
3263 /* Get the new reloc address. */
3264 raddr = irel->r_offset;
3265 if ((raddr >= (addr + count) && raddr < toaddr))
3266 irel->r_offset -= count;
3267
3268 if (raddr >= addr && raddr < addr + count)
3269 {
3270 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3271 (int) R_V850_NONE);
3272 continue;
3273 }
3274
3275 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3276 continue;
3277
3278 bfd_elf32_swap_symbol_in (abfd,
3279 extsyms + ELF32_R_SYM (irel->r_info),
3280 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3281 & isym);
3282
3283 if (isym.st_shndx != sec_shndx)
3284 continue;
3285
3286 /* Get the value of the symbol referred to by the reloc. */
3287 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3288 {
3289 symval = isym.st_value;
3290 #if (DEBUG_RELAX & 2)
3291 {
3292 char * name = bfd_elf_string_from_elf_section
3293 (abfd, symtab_hdr->sh_link, isym.st_name);
3294 fprintf (stderr,
3295 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3296 sec->name, name, isym.st_name,
3297 sec->output_section->vma, sec->output_offset,
3298 isym.st_value, irel->r_addend);
3299 }
3300 #endif
3301 }
3302 else
3303 {
3304 unsigned long indx;
3305 struct elf_link_hash_entry * h;
3306
3307 /* An external symbol. */
3308 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3309
3310 h = elf_sym_hashes (abfd) [indx];
3311 BFD_ASSERT (h != NULL);
3312
3313 symval = h->root.u.def.value;
3314 #if (DEBUG_RELAX & 2)
3315 fprintf (stderr,
3316 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3317 sec->name, h->root.root.string, h->root.u.def.value,
3318 sec->output_section->vma, sec->output_offset, irel->r_addend);
3319 #endif
3320 }
3321
3322 paddr = symval + irel->r_addend;
3323
3324 if ( (symval >= addr + count && symval < toaddr)
3325 && (paddr < addr + count || paddr >= toaddr))
3326 irel->r_addend += count;
3327 else if ( (symval < addr + count || symval >= toaddr)
3328 && (paddr >= addr + count && paddr < toaddr))
3329 irel->r_addend -= count;
3330 }
3331
3332 /* Adjust the local symbols defined in this section. */
3333 esym = extsyms;
3334 esymend = esym + symtab_hdr->sh_info;
3335
3336 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3337 {
3338 Elf_Internal_Sym isym;
3339
3340 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3341
3342 if (isym.st_shndx == sec_shndx
3343 && isym.st_value >= addr + count
3344 && isym.st_value < toaddr)
3345 {
3346 isym.st_value -= count;
3347
3348 if (isym.st_value + isym.st_size >= toaddr)
3349 isym.st_size += count;
3350
3351 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3352 }
3353 else if (isym.st_shndx == sec_shndx
3354 && isym.st_value < addr + count)
3355 {
3356 if (isym.st_value+isym.st_size >= addr + count
3357 && isym.st_value+isym.st_size < toaddr)
3358 isym.st_size -= count;
3359
3360 if (isym.st_value >= addr
3361 && isym.st_value < addr + count)
3362 isym.st_value = addr;
3363
3364 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3365 }
3366 }
3367
3368 /* Now adjust the global symbols defined in this section. */
3369 esym = extsyms + symtab_hdr->sh_info;
3370 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3371
3372 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3373 {
3374 Elf_Internal_Sym isym;
3375
3376 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3377 sym_hash = elf_sym_hashes (abfd) [sym_index];
3378
3379 if (isym.st_shndx == sec_shndx
3380 && ((sym_hash)->root.type == bfd_link_hash_defined
3381 || (sym_hash)->root.type == bfd_link_hash_defweak)
3382 && (sym_hash)->root.u.def.section == sec
3383 && (sym_hash)->root.u.def.value >= addr + count
3384 && (sym_hash)->root.u.def.value < toaddr)
3385 {
3386 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3387 {
3388 isym.st_size += count;
3389 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3390 }
3391
3392 (sym_hash)->root.u.def.value -= count;
3393 }
3394 else if (isym.st_shndx == sec_shndx
3395 && ((sym_hash)->root.type == bfd_link_hash_defined
3396 || (sym_hash)->root.type == bfd_link_hash_defweak)
3397 && (sym_hash)->root.u.def.section == sec
3398 && (sym_hash)->root.u.def.value < addr + count)
3399 {
3400 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3401 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3402 isym.st_size -= count;
3403
3404 if ((sym_hash)->root.u.def.value >= addr
3405 && (sym_hash)->root.u.def.value < addr + count)
3406 (sym_hash)->root.u.def.value = addr;
3407
3408 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3409 }
3410
3411 if (shndx)
3412 ++ shndx;
3413 }
3414
3415 return TRUE;
3416 }
3417
3418 #define NOP_OPCODE (0x0000)
3419 #define MOVHI 0x0640 /* 4byte. */
3420 #define MOVHI_MASK 0x07e0
3421 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3422 #define MOVHI_R2(insn) ((insn) >> 11)
3423 #define MOVEA 0x0620 /* 2byte. */
3424 #define MOVEA_MASK 0x07e0
3425 #define MOVEA_R1(insn) ((insn) & 0x1f)
3426 #define MOVEA_R2(insn) ((insn) >> 11)
3427 #define JARL_4 0x00040780 /* 4byte. */
3428 #define JARL_4_MASK 0xFFFF07FF
3429 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3430 #define ADD_I 0x0240 /* 2byte. */
3431 #define ADD_I_MASK 0x07e0
3432 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3433 #define ADD_R2(insn) ((insn) >> 11)
3434 #define JMP_R 0x0060 /* 2byte. */
3435 #define JMP_R_MASK 0xFFE0
3436 #define JMP_R1(insn) ((insn) & 0x1f)
3437
3438 static bfd_boolean
3439 v850_elf_relax_section (bfd *abfd,
3440 asection *sec,
3441 struct bfd_link_info *link_info,
3442 bfd_boolean *again)
3443 {
3444 Elf_Internal_Shdr *symtab_hdr;
3445 Elf_Internal_Rela *internal_relocs;
3446 Elf_Internal_Rela *irel;
3447 Elf_Internal_Rela *irelend;
3448 Elf_Internal_Rela *irelalign = NULL;
3449 Elf_Internal_Sym *isymbuf = NULL;
3450 bfd_byte *contents = NULL;
3451 bfd_vma addr = 0;
3452 bfd_vma toaddr;
3453 int align_pad_size = 0;
3454 bfd_boolean result = TRUE;
3455
3456 *again = FALSE;
3457
3458 if (bfd_link_relocatable (link_info)
3459 || (sec->flags & SEC_RELOC) == 0
3460 || sec->reloc_count == 0)
3461 return TRUE;
3462
3463 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3464
3465 internal_relocs = (_bfd_elf_link_read_relocs
3466 (abfd, sec, NULL, NULL, link_info->keep_memory));
3467 if (internal_relocs == NULL)
3468 goto error_return;
3469
3470 irelend = internal_relocs + sec->reloc_count;
3471
3472 while (addr < sec->size)
3473 {
3474 toaddr = sec->size;
3475
3476 for (irel = internal_relocs; irel < irelend; irel ++)
3477 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3478 && irel->r_offset > addr
3479 && irel->r_offset < toaddr)
3480 toaddr = irel->r_offset;
3481
3482 #ifdef DEBUG_RELAX
3483 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3484 addr, toaddr, align_pad_size);
3485 #endif
3486 if (irelalign)
3487 {
3488 bfd_vma alignto;
3489 bfd_vma alignmoveto;
3490
3491 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3492 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3493
3494 if (alignmoveto < alignto)
3495 {
3496 bfd_vma i;
3497
3498 align_pad_size = alignto - alignmoveto;
3499 #ifdef DEBUG_RELAX
3500 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3501 alignmoveto, toaddr, align_pad_size);
3502 #endif
3503 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3504 toaddr, align_pad_size))
3505 goto error_return;
3506
3507 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3508 (i + 1) < toaddr; i += 2)
3509 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3510
3511 addr = alignmoveto;
3512 }
3513 else
3514 align_pad_size = 0;
3515 }
3516
3517 for (irel = internal_relocs; irel < irelend; irel++)
3518 {
3519 bfd_vma laddr;
3520 bfd_vma addend;
3521 bfd_vma symval;
3522 int insn[5];
3523 int no_match = -1;
3524 Elf_Internal_Rela *hi_irelfn;
3525 Elf_Internal_Rela *lo_irelfn;
3526 Elf_Internal_Rela *irelcall;
3527 bfd_signed_vma foff;
3528 unsigned int r_type;
3529
3530 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3531 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3532 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3533 continue;
3534
3535 #ifdef DEBUG_RELAX
3536 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3537 irel->r_info,
3538 irel->r_offset,
3539 irel->r_addend );
3540 #endif
3541
3542 /* Get the section contents. */
3543 if (contents == NULL)
3544 {
3545 if (elf_section_data (sec)->this_hdr.contents != NULL)
3546 contents = elf_section_data (sec)->this_hdr.contents;
3547 else
3548 {
3549 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3550 goto error_return;
3551 }
3552 }
3553
3554 /* Read this BFD's local symbols if we haven't done so already. */
3555 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3556 {
3557 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3558 if (isymbuf == NULL)
3559 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3560 symtab_hdr->sh_info, 0,
3561 NULL, NULL, NULL);
3562 if (isymbuf == NULL)
3563 goto error_return;
3564 }
3565
3566 laddr = irel->r_offset;
3567
3568 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3569 {
3570 /* Check code for -mlong-calls output. */
3571 if (laddr + 16 <= (bfd_vma) sec->size)
3572 {
3573 insn[0] = bfd_get_16 (abfd, contents + laddr);
3574 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3575 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3576 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3577 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3578
3579 if ((insn[0] & MOVHI_MASK) != MOVHI
3580 || MOVHI_R1 (insn[0]) != 0)
3581 no_match = 0;
3582
3583 if (no_match < 0
3584 && ((insn[1] & MOVEA_MASK) != MOVEA
3585 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3586 no_match = 1;
3587
3588 if (no_match < 0
3589 && (insn[2] & JARL_4_MASK) != JARL_4)
3590 no_match = 2;
3591
3592 if (no_match < 0
3593 && ((insn[3] & ADD_I_MASK) != ADD_I
3594 || ADD_I5 (insn[3]) != 4
3595 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3596 no_match = 3;
3597
3598 if (no_match < 0
3599 && ((insn[4] & JMP_R_MASK) != JMP_R
3600 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3601 no_match = 4;
3602 }
3603 else
3604 {
3605 _bfd_error_handler
3606 /* xgettext:c-format */
3607 (_("%pB: %#" PRIx64 ": warning: %s points to "
3608 "unrecognized insns"),
3609 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3610 continue;
3611 }
3612
3613 if (no_match >= 0)
3614 {
3615 _bfd_error_handler
3616 /* xgettext:c-format */
3617 (_("%pB: %#" PRIx64 ": warning: %s points to "
3618 "unrecognized insn %#x"),
3619 abfd,
3620 (uint64_t) (irel->r_offset + no_match),
3621 "R_V850_LONGCALL",
3622 insn[no_match]);
3623 continue;
3624 }
3625
3626 /* Get the reloc for the address from which the register is
3627 being loaded. This reloc will tell us which function is
3628 actually being called. */
3629
3630 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3631 {
3632 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3633
3634 if (hi_irelfn->r_offset == laddr + 2
3635 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3636 break;
3637 }
3638
3639 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3640 {
3641 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3642
3643 if (lo_irelfn->r_offset == laddr + 6
3644 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3645 break;
3646 }
3647
3648 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3649 {
3650 r_type = ELF32_R_TYPE (irelcall->r_info);
3651
3652 if (irelcall->r_offset == laddr + 8
3653 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3654 break;
3655 }
3656
3657 if ( hi_irelfn == irelend
3658 || lo_irelfn == irelend
3659 || irelcall == irelend)
3660 {
3661 _bfd_error_handler
3662 /* xgettext:c-format */
3663 (_("%pB: %#" PRIx64 ": warning: %s points to "
3664 "unrecognized reloc"),
3665 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
3666
3667 continue;
3668 }
3669
3670 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3671 {
3672 Elf_Internal_Sym * isym;
3673
3674 /* A local symbol. */
3675 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3676
3677 symval = isym->st_value;
3678 }
3679 else
3680 {
3681 unsigned long indx;
3682 struct elf_link_hash_entry * h;
3683
3684 /* An external symbol. */
3685 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3686 h = elf_sym_hashes (abfd)[indx];
3687 BFD_ASSERT (h != NULL);
3688
3689 if ( h->root.type != bfd_link_hash_defined
3690 && h->root.type != bfd_link_hash_defweak)
3691 /* This appears to be a reference to an undefined
3692 symbol. Just ignore it--it will be caught by the
3693 regular reloc processing. */
3694 continue;
3695
3696 symval = h->root.u.def.value;
3697 }
3698
3699 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3700 {
3701 _bfd_error_handler
3702 /* xgettext:c-format */
3703 (_("%pB: %#" PRIx64 ": warning: %s points to "
3704 "unrecognized reloc %#" PRIx64),
3705 abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL",
3706 (uint64_t) irelcall->r_offset);
3707 continue;
3708 }
3709
3710 /* Get the value of the symbol referred to by the reloc. */
3711 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3712 {
3713 Elf_Internal_Sym *isym;
3714 asection *sym_sec;
3715
3716 /* A local symbol. */
3717 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3718
3719 if (isym->st_shndx == SHN_UNDEF)
3720 sym_sec = bfd_und_section_ptr;
3721 else if (isym->st_shndx == SHN_ABS)
3722 sym_sec = bfd_abs_section_ptr;
3723 else if (isym->st_shndx == SHN_COMMON)
3724 sym_sec = bfd_com_section_ptr;
3725 else
3726 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3727 symval = (isym->st_value
3728 + sym_sec->output_section->vma
3729 + sym_sec->output_offset);
3730 }
3731 else
3732 {
3733 unsigned long indx;
3734 struct elf_link_hash_entry *h;
3735
3736 /* An external symbol. */
3737 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3738 h = elf_sym_hashes (abfd)[indx];
3739 BFD_ASSERT (h != NULL);
3740
3741 if ( h->root.type != bfd_link_hash_defined
3742 && h->root.type != bfd_link_hash_defweak)
3743 /* This appears to be a reference to an undefined
3744 symbol. Just ignore it--it will be caught by the
3745 regular reloc processing. */
3746 continue;
3747
3748 symval = (h->root.u.def.value
3749 + h->root.u.def.section->output_section->vma
3750 + h->root.u.def.section->output_offset);
3751 }
3752
3753 addend = irel->r_addend;
3754
3755 foff = (symval + addend
3756 - (irel->r_offset
3757 + sec->output_section->vma
3758 + sec->output_offset
3759 + 4));
3760 #ifdef DEBUG_RELAX
3761 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3762 irel->r_offset,
3763 (irel->r_offset
3764 + sec->output_section->vma
3765 + sec->output_offset),
3766 symval, addend, foff);
3767 #endif
3768
3769 if (foff < -0x100000 || foff >= 0x100000)
3770 /* After all that work, we can't shorten this function call. */
3771 continue;
3772
3773 /* For simplicity of coding, we are going to modify the section
3774 contents, the section relocs, and the BFD symbol table. We
3775 must tell the rest of the code not to free up this
3776 information. It would be possible to instead create a table
3777 of changes which have to be made, as is done in coff-mips.c;
3778 that would be more work, but would require less memory when
3779 the linker is run. */
3780 elf_section_data (sec)->relocs = internal_relocs;
3781 elf_section_data (sec)->this_hdr.contents = contents;
3782 symtab_hdr->contents = (bfd_byte *) isymbuf;
3783
3784 /* Replace the long call with a jarl. */
3785 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3786 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3787 else
3788 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3789
3790 addend = 0;
3791
3792 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3793 /* If this needs to be changed because of future relaxing,
3794 it will be handled here like other internal IND12W
3795 relocs. */
3796 bfd_put_32 (abfd,
3797 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3798 contents + irel->r_offset);
3799 else
3800 /* We can't fully resolve this yet, because the external
3801 symbol value may be changed by future relaxing.
3802 We let the final link phase handle it. */
3803 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3804 contents + irel->r_offset);
3805
3806 hi_irelfn->r_info =
3807 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3808 lo_irelfn->r_info =
3809 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3810 irelcall->r_info =
3811 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3812
3813 if (! v850_elf_relax_delete_bytes (abfd, sec,
3814 irel->r_offset + 4, toaddr, 12))
3815 goto error_return;
3816
3817 align_pad_size += 12;
3818 }
3819 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3820 {
3821 /* Check code for -mlong-jumps output. */
3822 if (laddr + 10 <= (bfd_vma) sec->size)
3823 {
3824 insn[0] = bfd_get_16 (abfd, contents + laddr);
3825 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3826 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3827
3828 if ((insn[0] & MOVHI_MASK) != MOVHI
3829 || MOVHI_R1 (insn[0]) != 0)
3830 no_match = 0;
3831
3832 if (no_match < 0
3833 && ((insn[1] & MOVEA_MASK) != MOVEA
3834 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3835 no_match = 1;
3836
3837 if (no_match < 0
3838 && ((insn[2] & JMP_R_MASK) != JMP_R
3839 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3840 no_match = 4;
3841 }
3842 else
3843 {
3844 _bfd_error_handler
3845 /* xgettext:c-format */
3846 (_("%pB: %#" PRIx64 ": warning: %s points to "
3847 "unrecognized insns"),
3848 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3849 continue;
3850 }
3851
3852 if (no_match >= 0)
3853 {
3854 _bfd_error_handler
3855 /* xgettext:c-format */
3856 (_("%pB: %#" PRIx64 ": warning: %s points to "
3857 "unrecognized insn %#x"),
3858 abfd,
3859 (uint64_t) (irel->r_offset + no_match),
3860 "R_V850_LONGJUMP",
3861 insn[no_match]);
3862 continue;
3863 }
3864
3865 /* Get the reloc for the address from which the register is
3866 being loaded. This reloc will tell us which function is
3867 actually being called. */
3868 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3869 {
3870 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3871
3872 if (hi_irelfn->r_offset == laddr + 2
3873 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3874 break;
3875 }
3876
3877 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3878 {
3879 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3880
3881 if (lo_irelfn->r_offset == laddr + 6
3882 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3883 break;
3884 }
3885
3886 if ( hi_irelfn == irelend
3887 || lo_irelfn == irelend)
3888 {
3889 _bfd_error_handler
3890 /* xgettext:c-format */
3891 (_("%pB: %#" PRIx64 ": warning: %s points to "
3892 "unrecognized reloc"),
3893 abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
3894 continue;
3895 }
3896
3897 /* Get the value of the symbol referred to by the reloc. */
3898 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3899 {
3900 Elf_Internal_Sym * isym;
3901 asection * sym_sec;
3902
3903 /* A local symbol. */
3904 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3905
3906 if (isym->st_shndx == SHN_UNDEF)
3907 sym_sec = bfd_und_section_ptr;
3908 else if (isym->st_shndx == SHN_ABS)
3909 sym_sec = bfd_abs_section_ptr;
3910 else if (isym->st_shndx == SHN_COMMON)
3911 sym_sec = bfd_com_section_ptr;
3912 else
3913 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3914 symval = (isym->st_value
3915 + sym_sec->output_section->vma
3916 + sym_sec->output_offset);
3917 #ifdef DEBUG_RELAX
3918 {
3919 char * name = bfd_elf_string_from_elf_section
3920 (abfd, symtab_hdr->sh_link, isym->st_name);
3921
3922 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3923 sym_sec->name, name, isym->st_name,
3924 sym_sec->output_section->vma,
3925 sym_sec->output_offset,
3926 isym->st_value, irel->r_addend);
3927 }
3928 #endif
3929 }
3930 else
3931 {
3932 unsigned long indx;
3933 struct elf_link_hash_entry * h;
3934
3935 /* An external symbol. */
3936 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3937 h = elf_sym_hashes (abfd)[indx];
3938 BFD_ASSERT (h != NULL);
3939
3940 if ( h->root.type != bfd_link_hash_defined
3941 && h->root.type != bfd_link_hash_defweak)
3942 /* This appears to be a reference to an undefined
3943 symbol. Just ignore it--it will be caught by the
3944 regular reloc processing. */
3945 continue;
3946
3947 symval = (h->root.u.def.value
3948 + h->root.u.def.section->output_section->vma
3949 + h->root.u.def.section->output_offset);
3950 #ifdef DEBUG_RELAX
3951 fprintf (stderr,
3952 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3953 sec->name, h->root.root.string, h->root.u.def.value,
3954 sec->output_section->vma, sec->output_offset, irel->r_addend);
3955 #endif
3956 }
3957
3958 addend = irel->r_addend;
3959
3960 foff = (symval + addend
3961 - (irel->r_offset
3962 + sec->output_section->vma
3963 + sec->output_offset
3964 + 4));
3965 #ifdef DEBUG_RELAX
3966 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3967 irel->r_offset,
3968 (irel->r_offset
3969 + sec->output_section->vma
3970 + sec->output_offset),
3971 symval, addend, foff);
3972 #endif
3973 if (foff < -0x100000 || foff >= 0x100000)
3974 /* After all that work, we can't shorten this function call. */
3975 continue;
3976
3977 /* For simplicity of coding, we are going to modify the section
3978 contents, the section relocs, and the BFD symbol table. We
3979 must tell the rest of the code not to free up this
3980 information. It would be possible to instead create a table
3981 of changes which have to be made, as is done in coff-mips.c;
3982 that would be more work, but would require less memory when
3983 the linker is run. */
3984 elf_section_data (sec)->relocs = internal_relocs;
3985 elf_section_data (sec)->this_hdr.contents = contents;
3986 symtab_hdr->contents = (bfd_byte *) isymbuf;
3987
3988 if (foff < -0x100 || foff >= 0x100)
3989 {
3990 /* Replace the long jump with a jr. */
3991
3992 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3993 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3994 else
3995 irel->r_info =
3996 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3997
3998 irel->r_addend = addend;
3999 addend = 0;
4000
4001 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4002 /* If this needs to be changed because of future relaxing,
4003 it will be handled here like other internal IND12W
4004 relocs. */
4005 bfd_put_32 (abfd,
4006 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
4007 contents + irel->r_offset);
4008 else
4009 /* We can't fully resolve this yet, because the external
4010 symbol value may be changed by future relaxing.
4011 We let the final link phase handle it. */
4012 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
4013
4014 hi_irelfn->r_info =
4015 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4016 lo_irelfn->r_info =
4017 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4018 if (!v850_elf_relax_delete_bytes (abfd, sec,
4019 irel->r_offset + 4, toaddr, 6))
4020 goto error_return;
4021
4022 align_pad_size += 6;
4023 }
4024 else
4025 {
4026 /* Replace the long jump with a br. */
4027
4028 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4029 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4030 else
4031 irel->r_info =
4032 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4033
4034 irel->r_addend = addend;
4035 addend = 0;
4036
4037 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4038 /* If this needs to be changed because of future relaxing,
4039 it will be handled here like other internal IND12W
4040 relocs. */
4041 bfd_put_16 (abfd,
4042 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4043 contents + irel->r_offset);
4044 else
4045 /* We can't fully resolve this yet, because the external
4046 symbol value may be changed by future relaxing.
4047 We let the final link phase handle it. */
4048 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4049
4050 hi_irelfn->r_info =
4051 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4052 lo_irelfn->r_info =
4053 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4054 if (!v850_elf_relax_delete_bytes (abfd, sec,
4055 irel->r_offset + 2, toaddr, 8))
4056 goto error_return;
4057
4058 align_pad_size += 8;
4059 }
4060 }
4061 }
4062
4063 irelalign = NULL;
4064 for (irel = internal_relocs; irel < irelend; irel++)
4065 {
4066 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4067 && irel->r_offset == toaddr)
4068 {
4069 irel->r_offset -= align_pad_size;
4070
4071 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4072 irelalign = irel;
4073 }
4074 }
4075
4076 addr = toaddr;
4077 }
4078
4079 if (!irelalign)
4080 {
4081 #ifdef DEBUG_RELAX
4082 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4083 align_pad_size,
4084 sec->size,
4085 sec->size - align_pad_size);
4086 #endif
4087 sec->size -= align_pad_size;
4088 }
4089
4090 finish:
4091 if (internal_relocs != NULL
4092 && elf_section_data (sec)->relocs != internal_relocs)
4093 free (internal_relocs);
4094
4095 if (contents != NULL
4096 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4097 free (contents);
4098
4099 if (isymbuf != NULL
4100 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4101 free (isymbuf);
4102
4103 return result;
4104
4105 error_return:
4106 result = FALSE;
4107 goto finish;
4108 }
4109
4110 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4111 {
4112 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4113 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4114 + SHF_EXECINSTR) },
4115 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4116 + SHF_V850_GPREL) },
4117 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4118 + SHF_V850_R0REL) },
4119 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4120 + SHF_V850_GPREL) },
4121 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4122 + SHF_V850_GPREL) },
4123 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4124 + SHF_V850_GPREL) },
4125 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4126 + SHF_V850_EPREL) },
4127 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4128 + SHF_V850_R0REL) },
4129 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4130 + SHF_V850_EPREL) },
4131 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4132 + SHF_V850_R0REL) },
4133 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4134 + SHF_V850_R0REL) },
4135 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4136 + SHF_V850_R0REL) },
4137 { NULL, 0, 0, 0, 0 }
4138 };
4139 \f
4140 #define TARGET_LITTLE_SYM v850_elf32_vec
4141 #define TARGET_LITTLE_NAME "elf32-v850"
4142 #define ELF_ARCH bfd_arch_v850
4143 #define ELF_MACHINE_CODE EM_V850
4144 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4145 #define ELF_MAXPAGESIZE 0x1000
4146
4147 #define elf_info_to_howto v850_elf_info_to_howto_rela
4148 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4149
4150 #define elf_backend_check_relocs v850_elf_check_relocs
4151 #define elf_backend_relocate_section v850_elf_relocate_section
4152 #define elf_backend_object_p v850_elf_object_p
4153 #define elf_backend_final_write_processing v850_elf_final_write_processing
4154 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4155 #define elf_backend_symbol_processing v850_elf_symbol_processing
4156 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4157 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4158 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4159 #define elf_backend_fake_sections v850_elf_fake_sections
4160 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4161 #define elf_backend_special_sections v850_elf_special_sections
4162
4163 #define elf_backend_can_gc_sections 1
4164 #define elf_backend_rela_normal 1
4165
4166 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4167 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4168
4169 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4170 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4171 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4172 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4173 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4174 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4175
4176 #define elf_symbol_leading_char '_'
4177
4178 #undef elf32_bed
4179 #define elf32_bed elf32_v850_bed
4180
4181 #include "elf32-target.h"
4182
4183 /* Map BFD reloc types to V800 ELF reloc types. */
4184
4185 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4186 {
4187 { BFD_RELOC_NONE, R_V810_NONE },
4188 { BFD_RELOC_8, R_V810_BYTE },
4189 { BFD_RELOC_16, R_V810_HWORD },
4190 { BFD_RELOC_32, R_V810_WORD },
4191 { BFD_RELOC_LO16, R_V810_WLO },
4192 { BFD_RELOC_HI16, R_V810_WHI },
4193 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4194 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4195 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4196 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4197 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4198 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4199 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4200 { BFD_RELOC_V850_23, R_V850_WLO23 },
4201 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4202 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4203 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4204 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4205 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4206 };
4207
4208 /* Map a bfd relocation into the appropriate howto structure. */
4209
4210 static reloc_howto_type *
4211 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4212 {
4213 unsigned int i;
4214
4215 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4216
4217 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4218 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4219 {
4220 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4221 unsigned int idx = elf_reloc_val - R_V810_NONE;
4222
4223 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4224
4225 return v800_elf_howto_table + idx;
4226 }
4227
4228 #ifdef DEBUG
4229 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4230 #endif
4231 return NULL;
4232 }
4233
4234 static reloc_howto_type *
4235 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4236 {
4237 unsigned int i;
4238
4239 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4240
4241 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4242 if (v800_elf_howto_table[i].name != NULL
4243 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4244 return v800_elf_howto_table + i;
4245
4246 return NULL;
4247 }
4248
4249
4250 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4251
4252 static bfd_boolean
4253 v800_elf_info_to_howto (bfd * abfd,
4254 arelent * cache_ptr,
4255 Elf_Internal_Rela * dst)
4256 {
4257 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4258
4259 if (r_type == R_V800_NONE)
4260 r_type = R_V810_NONE;
4261
4262 if (bfd_get_arch (abfd) != bfd_arch_v850_rh850
4263 || r_type >= (unsigned int) R_V800_max
4264 || r_type < (unsigned int) R_V810_NONE
4265 || (r_type - R_V810_NONE) >= ARRAY_SIZE (v800_elf_howto_table))
4266 {
4267 /* xgettext:c-format */
4268 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4269 abfd, r_type);
4270 bfd_set_error (bfd_error_bad_value);
4271 return FALSE;
4272 }
4273
4274 cache_ptr->howto = v800_elf_howto_table + (r_type - R_V810_NONE);
4275 return TRUE;
4276 }
4277 \f
4278 #undef TARGET_LITTLE_SYM
4279 #define TARGET_LITTLE_SYM v800_elf32_vec
4280 #undef TARGET_LITTLE_NAME
4281 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4282 #undef ELF_ARCH
4283 #define ELF_ARCH bfd_arch_v850_rh850
4284 #undef ELF_MACHINE_CODE
4285 #define ELF_MACHINE_CODE EM_V800
4286 #undef ELF_MACHINE_ALT1
4287
4288 #undef elf32_bed
4289 #define elf32_bed elf32_v850_rh850_bed
4290
4291 #undef elf_info_to_howto
4292 #define elf_info_to_howto v800_elf_info_to_howto
4293 #undef elf_info_to_howto_rel
4294 #define elf_info_to_howto_rel NULL
4295 #undef bfd_elf32_bfd_reloc_type_lookup
4296 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4297 #undef bfd_elf32_bfd_reloc_name_lookup
4298 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4299
4300 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.