1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2018 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
23 dependencies. As is the gas & simulator code for the v850. */
24
25 #include "sysdep.h"
26 #include "bfd.h"
27 #include "bfdlink.h"
28 #include "libbfd.h"
29 #include "elf-bfd.h"
30 #include "elf/v850.h"
31 #include "libiberty.h"
32
33 /* Sign-extend a 17-bit number. */
34 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
35
36 /* Sign-extend a 22-bit number. */
37 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
38
39 static reloc_howto_type v850_elf_howto_table[];
40
41 /* Look through the relocs for a section during the first phase, and
42 allocate space in the global offset table or procedure linkage
43 table. */
44
45 static bfd_boolean
v850_elf_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)46 v850_elf_check_relocs (bfd *abfd,
47 struct bfd_link_info *info,
48 asection *sec,
49 const Elf_Internal_Rela *relocs)
50 {
51 bfd_boolean ret = TRUE;
52 Elf_Internal_Shdr *symtab_hdr;
53 struct elf_link_hash_entry **sym_hashes;
54 const Elf_Internal_Rela *rel;
55 const Elf_Internal_Rela *rel_end;
56 unsigned int r_type;
57 int other = 0;
58 const char *common = NULL;
59
60 if (bfd_link_relocatable (info))
61 return TRUE;
62
63 #ifdef DEBUG
64 _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B",
65 sec, abfd);
66 #endif
67
68 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
69 sym_hashes = elf_sym_hashes (abfd);
70
71 rel_end = relocs + sec->reloc_count;
72 for (rel = relocs; rel < rel_end; rel++)
73 {
74 unsigned long r_symndx;
75 struct elf_link_hash_entry *h;
76
77 r_symndx = ELF32_R_SYM (rel->r_info);
78 if (r_symndx < symtab_hdr->sh_info)
79 h = NULL;
80 else
81 {
82 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
83 while (h->root.type == bfd_link_hash_indirect
84 || h->root.type == bfd_link_hash_warning)
85 h = (struct elf_link_hash_entry *) h->root.u.i.link;
86 }
87
88 r_type = ELF32_R_TYPE (rel->r_info);
89 switch (r_type)
90 {
91 default:
92 break;
93
94 /* This relocation describes the C++ object vtable hierarchy.
95 Reconstruct it for later use during GC. */
96 case R_V850_GNU_VTINHERIT:
97 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
98 return FALSE;
99 break;
100
101 /* This relocation describes which C++ vtable entries
102 are actually used. Record for later use during GC. */
103 case R_V850_GNU_VTENTRY:
104 BFD_ASSERT (h != NULL);
105 if (h != NULL
106 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
107 return FALSE;
108 break;
109
110 case R_V850_SDA_16_16_SPLIT_OFFSET:
111 case R_V850_SDA_16_16_OFFSET:
112 case R_V850_SDA_15_16_OFFSET:
113 case R_V810_GPWLO_1:
114 case R_V850_HWLO:
115 case R_V850_HWLO_1:
116 other = V850_OTHER_SDA;
117 common = ".scommon";
118 goto small_data_common;
119
120 case R_V850_ZDA_16_16_SPLIT_OFFSET:
121 case R_V850_ZDA_16_16_OFFSET:
122 case R_V850_ZDA_15_16_OFFSET:
123 other = V850_OTHER_ZDA;
124 common = ".zcommon";
125 goto small_data_common;
126
127 case R_V850_TDA_4_4_OFFSET:
128 case R_V850_TDA_4_5_OFFSET:
129 case R_V850_TDA_7_7_OFFSET:
130 case R_V850_TDA_6_8_OFFSET:
131 case R_V850_TDA_7_8_OFFSET:
132 case R_V850_TDA_16_16_OFFSET:
133 other = V850_OTHER_TDA;
134 common = ".tcommon";
135 /* fall through */
136
137 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
138
139 small_data_common:
140 if (h)
141 {
142 /* Flag which type of relocation was used. */
143 h->other |= other;
144 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
145 && (h->other & V850_OTHER_ERROR) == 0)
146 {
147 const char * msg;
148 static char buff[200]; /* XXX */
149
150 switch (h->other & V850_OTHER_MASK)
151 {
152 default:
153 msg = _("Variable `%s' cannot occupy in multiple small data regions");
154 break;
155 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
156 msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
157 break;
158 case V850_OTHER_SDA | V850_OTHER_ZDA:
159 msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
160 break;
161 case V850_OTHER_SDA | V850_OTHER_TDA:
162 msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
163 break;
164 case V850_OTHER_ZDA | V850_OTHER_TDA:
165 msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
166 break;
167 }
168
169 sprintf (buff, msg, h->root.root.string);
170 info->callbacks->warning (info, buff, h->root.root.string,
171 abfd, h->root.u.def.section,
172 (bfd_vma) 0);
173
174 bfd_set_error (bfd_error_bad_value);
175 h->other |= V850_OTHER_ERROR;
176 ret = FALSE;
177 }
178 }
179
180 if (h && h->root.type == bfd_link_hash_common
181 && h->root.u.c.p
182 && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
183 {
184 asection * section;
185
186 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
187 section->flags |= SEC_IS_COMMON;
188 }
189
190 #ifdef DEBUG
191 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
192 v850_elf_howto_table[ (int)r_type ].name,
193 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
194 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
195 #endif
196 break;
197 }
198 }
199
200 return ret;
201 }
202
203 /* In the old version, when an entry was checked out from the table,
204 it was deleted. This produced an error if the entry was needed
205 more than once, as the second attempted retry failed.
206
207 In the current version, the entry is not deleted, instead we set
208 the field 'found' to TRUE. If a second lookup matches the same
209 entry, then we know that the hi16s reloc has already been updated
210 and does not need to be updated a second time.
211
212 TODO - TOFIX: If it is possible that we need to restore 2 different
213 addresses from the same table entry, where the first generates an
214 overflow, whilst the second do not, then this code will fail. */
215
216 typedef struct hi16s_location
217 {
218 bfd_vma addend;
219 bfd_byte * address;
220 unsigned long counter;
221 bfd_boolean found;
222 struct hi16s_location * next;
223 }
224 hi16s_location;
225
226 static hi16s_location * previous_hi16s;
227 static hi16s_location * free_hi16s;
228 static unsigned long hi16s_counter;
229
230 static void
remember_hi16s_reloc(bfd * abfd,bfd_vma addend,bfd_byte * address)231 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
232 {
233 hi16s_location * entry = NULL;
234 bfd_size_type amt = sizeof (* free_hi16s);
235
236 /* Find a free structure. */
237 if (free_hi16s == NULL)
238 free_hi16s = bfd_zalloc (abfd, amt);
239
240 entry = free_hi16s;
241 free_hi16s = free_hi16s->next;
242
243 entry->addend = addend;
244 entry->address = address;
245 entry->counter = hi16s_counter ++;
246 entry->found = FALSE;
247 entry->next = previous_hi16s;
248 previous_hi16s = entry;
249
250 /* Cope with wrap around of our counter. */
251 if (hi16s_counter == 0)
252 {
253 /* XXX: Assume that all counter entries differ only in their low 16 bits. */
254 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
255 entry->counter &= 0xffff;
256
257 hi16s_counter = 0x10000;
258 }
259 }
260
261 static bfd_byte *
find_remembered_hi16s_reloc(bfd_vma addend,bfd_boolean * already_found)262 find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found)
263 {
264 hi16s_location *match = NULL;
265 hi16s_location *entry;
266 bfd_byte *addr;
267
268 /* Search the table. Record the most recent entry that matches. */
269 for (entry = previous_hi16s; entry; entry = entry->next)
270 {
271 if (entry->addend == addend
272 && (match == NULL || match->counter < entry->counter))
273 {
274 match = entry;
275 }
276 }
277
278 if (match == NULL)
279 return NULL;
280
281 /* Extract the address. */
282 addr = match->address;
283
284 /* Remember if this entry has already been used before. */
285 if (already_found)
286 * already_found = match->found;
287
288 /* Note that this entry has now been used. */
289 match->found = TRUE;
290
291 return addr;
292 }
293
294 /* Calculate the final operand value for a R_V850_LO16 or
295 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
296 ADDEND is the sum of the relocation symbol and offset. Store the
297 operand value in *INSN and return true on success.
298
299 The assembler has already done some of this: If the value stored in
300 the instruction has its 15th bit set, (counting from zero) then the
301 assembler will have added 1 to the value stored in the associated
302 HI16S reloc. So for example, these relocations:
303
304 movhi hi( fred ), r0, r1
305 movea lo( fred ), r1, r1
306
307 will store 0 in the value fields for the MOVHI and MOVEA instructions
308 and addend will be the address of fred, but for these instructions:
309
310 movhi hi( fred + 0x123456 ), r0, r1
311 movea lo( fred + 0x123456 ), r1, r1
312
313 the value stored in the MOVHI instruction will be 0x12 and the value
314 stored in the MOVEA instruction will be 0x3456. If however the
315 instructions were:
316
317 movhi hi( fred + 0x10ffff ), r0, r1
318 movea lo( fred + 0x10ffff ), r1, r1
319
320 then the value stored in the MOVHI instruction would be 0x11 (not
321 0x10) and the value stored in the MOVEA instruction would be 0xffff.
322 Thus (assuming for the moment that the addend is 0), at run time the
323 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
324 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
325 the instructions were:
326
327 movhi hi( fred - 1 ), r0, r1
328 movea lo( fred - 1 ), r1, r1
329
330 then 0 is stored in the MOVHI instruction and -1 is stored in the
331 MOVEA instruction.
332
333 Overflow can occur if the addition of the value stored in the
334 instruction plus the addend sets the 15th bit when before it was clear.
335 This is because the 15th bit will be sign extended into the high part,
336 thus reducing its value by one, but since the 15th bit was originally
337 clear, the assembler will not have added 1 to the previous HI16S reloc
338 to compensate for this effect. For example:
339
340 movhi hi( fred + 0x123456 ), r0, r1
341 movea lo( fred + 0x123456 ), r1, r1
342
343 The value stored in HI16S reloc is 0x12, the value stored in the LO16
344 reloc is 0x3456. If we assume that the address of fred is 0x00007000
345 then the relocations become:
346
347 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
348 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
349
350 but when the instructions are executed, the MOVEA instruction's value
351 is signed extended, so the sum becomes:
352
353 0x00120000
354 + 0xffffa456
355 ------------
356 0x0011a456 but 'fred + 0x123456' = 0x0012a456
357
358 Note that if the 15th bit was set in the value stored in the LO16
359 reloc, then we do not have to do anything:
360
361 movhi hi( fred + 0x10ffff ), r0, r1
362 movea lo( fred + 0x10ffff ), r1, r1
363
364 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
365 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
366
367 0x00110000
368 + 0x00006fff
369 ------------
370 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
371
372 Overflow can also occur if the computation carries into the 16th bit
373 and it also results in the 15th bit having the same value as the 15th
374 bit of the original value. What happens is that the HI16S reloc
375 will have already examined the 15th bit of the original value and
376 added 1 to the high part if the bit is set. This compensates for the
377 sign extension of 15th bit of the result of the computation. But now
378 there is a carry into the 16th bit, and this has not been allowed for.
379
380 So, for example if fred is at address 0xf000:
381
382 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
383 movea lo( fred + 0xffff ), r1, r1
384
385 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
386 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
387
388 0x00010000
389 + 0xffffefff
390 ------------
391 0x0000efff but 'fred + 0xffff' = 0x0001efff
392
393 Similarly, if the 15th bit remains clear, but overflow occurs into
394 the 16th bit then (assuming the address of fred is 0xf000):
395
396 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
397 movea lo( fred + 0x7000 ), r1, r1
398
399 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
400 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
401
402 0x00000000
403 + 0x00006fff
404 ------------
405 0x00006fff but 'fred + 0x7000' = 0x00016fff
406
407 Note - there is no need to change anything if a carry occurs, and the
408 15th bit changes its value from being set to being clear, as the HI16S
409 reloc will have already added in 1 to the high part for us:
410
411 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
412 movea lo( fred + 0xffff ), r1, r1
413
414 HI16S: 0x0001 + (0x00007000 >> 16)
415 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
416
417 0x00010000
418 + 0x00006fff (bit 15 not set, so the top half is zero)
419 ------------
420 0x00016fff which is right (assuming that fred is at 0x7000)
421
422 but if the 15th bit goes from being clear to being set, then we must
423 once again handle overflow:
424
425 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
426 movea lo( fred + 0x7000 ), r1, r1
427
428 HI16S: 0x0000 + (0x0000ffff >> 16)
429 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
430
431 0x00000000
432 + 0x00006fff (bit 15 not set, so the top half is zero)
433 ------------
434 0x00006fff which is wrong (assuming that fred is at 0xffff). */
435
436 static bfd_boolean
v850_elf_perform_lo16_relocation(bfd * abfd,unsigned long * insn,unsigned long addend)437 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
438 unsigned long addend)
439 {
440 #define BIT15_SET(x) ((x) & 0x8000)
441 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
442
443 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
444 || (OVERFLOWS (addend, *insn)
445 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
446 {
447 bfd_boolean already_updated;
448 bfd_byte *hi16s_address = find_remembered_hi16s_reloc
449 (addend, & already_updated);
450
451 /* Amend the matching HI16_S relocation. */
452 if (hi16s_address != NULL)
453 {
454 if (! already_updated)
455 {
456 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
457 hi_insn += 1;
458 bfd_put_16 (abfd, hi_insn, hi16s_address);
459 }
460 }
461 else
462 {
463 _bfd_error_handler (_("FAILED to find previous HI16 reloc"));
464 return FALSE;
465 }
466 }
467 #undef OVERFLOWS
468 #undef BIT15_SET
469
470 /* Do not complain if value has top bit set, as this has been
471 anticipated. */
472 *insn = (*insn + addend) & 0xffff;
473 return TRUE;
474 }
475
476 /* FIXME: The code here probably ought to be removed and the code in reloc.c
477 allowed to do its stuff instead. At least for most of the relocs, anyway. */
478
479 static bfd_reloc_status_type
v850_elf_perform_relocation(bfd * abfd,unsigned int r_type,bfd_vma addend,bfd_byte * address)480 v850_elf_perform_relocation (bfd *abfd,
481 unsigned int r_type,
482 bfd_vma addend,
483 bfd_byte *address)
484 {
485 unsigned long insn;
486 unsigned long result;
487 bfd_signed_vma saddend = (bfd_signed_vma) addend;
488
489 switch (r_type)
490 {
491 default:
492 #ifdef DEBUG
493 fprintf (stderr, "%B: reloc number %d not recognised\n", 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
809 /* Insert the addend into the instruction. */
810
811 static bfd_reloc_status_type
v850_elf_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc,asymbol * symbol,void * data ATTRIBUTE_UNUSED,asection * isection,bfd * obfd,char ** err ATTRIBUTE_UNUSED)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
v850_elf_ignore_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol ATTRIBUTE_UNUSED,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)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
1848 /* Map a bfd relocation into the appropriate howto structure. */
1849
1850 static reloc_howto_type *
v850_elf_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)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 *
v850_elf_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)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
1885 /* Set the howto pointer for an V850 ELF reloc. */
1886
1887 static void
v850_elf_info_to_howto_rel(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1888 v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
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 (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1899 r_type = 0;
1900 }
1901 cache_ptr->howto = &v850_elf_howto_table[r_type];
1902 }
1903
1904 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1905
1906 static void
v850_elf_info_to_howto_rela(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1907 v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
1908 arelent * cache_ptr,
1909 Elf_Internal_Rela *dst)
1910 {
1911 unsigned int r_type;
1912
1913 r_type = ELF32_R_TYPE (dst->r_info);
1914 if (r_type >= (unsigned int) R_V850_max)
1915 {
1916 /* xgettext:c-format */
1917 _bfd_error_handler (_("%B: invalid V850 reloc number: %d"), abfd, r_type);
1918 r_type = 0;
1919 }
1920 cache_ptr->howto = &v850_elf_howto_table[r_type];
1921 }
1922
1923 static bfd_boolean
v850_elf_is_local_label_name(bfd * abfd ATTRIBUTE_UNUSED,const char * name)1924 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1925 {
1926 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1927 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1928 }
1929
1930 static bfd_boolean
v850_elf_is_target_special_symbol(bfd * abfd,asymbol * sym)1931 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1932 {
1933 return v850_elf_is_local_label_name (abfd, sym->name);
1934 }
1935
1936 /* We overload some of the bfd_reloc error codes for own purposes. */
1937 #define bfd_reloc_gp_not_found bfd_reloc_other
1938 #define bfd_reloc_ep_not_found bfd_reloc_continue
1939 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1940
1941 /* Perform a relocation as part of a final link. */
1942
1943 static bfd_reloc_status_type
v850_elf_final_link_relocate(reloc_howto_type * howto,bfd * input_bfd,bfd * output_bfd ATTRIBUTE_UNUSED,asection * input_section,bfd_byte * contents,bfd_vma offset,bfd_vma value,bfd_vma addend,struct bfd_link_info * info,asection * sym_sec,int is_local ATTRIBUTE_UNUSED)1944 v850_elf_final_link_relocate (reloc_howto_type *howto,
1945 bfd *input_bfd,
1946 bfd *output_bfd ATTRIBUTE_UNUSED,
1947 asection *input_section,
1948 bfd_byte *contents,
1949 bfd_vma offset,
1950 bfd_vma value,
1951 bfd_vma addend,
1952 struct bfd_link_info *info,
1953 asection *sym_sec,
1954 int is_local ATTRIBUTE_UNUSED)
1955 {
1956 unsigned int r_type = howto->type;
1957 bfd_byte *hit_data = contents + offset;
1958
1959 /* Adjust the value according to the relocation. */
1960 switch (r_type)
1961 {
1962 case R_V850_PC9:
1963 case R_V850_9_PCREL:
1964 value -= (input_section->output_section->vma
1965 + input_section->output_offset);
1966 value -= offset;
1967 break;
1968
1969 case R_V850_PC16U:
1970 case R_V850_16_PCREL:
1971 value -= (input_section->output_section->vma
1972 + input_section->output_offset
1973 + offset);
1974
1975 /* If the sign extension will corrupt the value then we have overflowed. */
1976 if ((value & 0xffff0000) != 0xffff0000)
1977 return bfd_reloc_overflow;
1978
1979 break;
1980
1981 case R_V850_PC17:
1982 case R_V850_17_PCREL:
1983 value -= (input_section->output_section->vma
1984 + input_section->output_offset
1985 + offset);
1986
1987 /* If the sign extension will corrupt the value then we have overflowed. */
1988 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1989 return bfd_reloc_overflow;
1990
1991 value = SEXT17 (value);
1992 break;
1993
1994 case R_V850_PCR22:
1995 case R_V850_22_PCREL:
1996 value -= (input_section->output_section->vma
1997 + input_section->output_offset
1998 + offset);
1999
2000 /* If the sign extension will corrupt the value then we have overflowed. */
2001 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
2002 return bfd_reloc_overflow;
2003
2004 /* Only the bottom 22 bits of the PC are valid. */
2005 value = SEXT22 (value);
2006 break;
2007
2008 case R_V850_PC32:
2009 case R_V850_32_PCREL:
2010 value -= (input_section->output_section->vma
2011 + input_section->output_offset
2012 + offset);
2013 break;
2014
2015 case R_V850_32_ABS:
2016 case R_V850_23:
2017 case R_V850_HI16_S:
2018 case R_V850_HI16:
2019 case R_V850_LO16:
2020 case R_V850_LO16_S1:
2021 case R_V850_LO16_SPLIT_OFFSET:
2022 case R_V850_16:
2023 case R_V850_ABS32:
2024 case R_V850_8:
2025 case R_V810_BYTE:
2026 case R_V810_HWORD:
2027 case R_V810_WORD:
2028 case R_V810_WLO:
2029 case R_V810_WHI:
2030 case R_V810_WHI1:
2031 case R_V810_WLO_1:
2032 case R_V850_WLO23:
2033 case R_V850_BLO:
2034 break;
2035
2036 case R_V850_ZDA_15_16_OFFSET:
2037 case R_V850_ZDA_16_16_OFFSET:
2038 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2039 if (sym_sec == NULL)
2040 return bfd_reloc_undefined;
2041
2042 value -= sym_sec->output_section->vma;
2043 break;
2044
2045 case R_V850_SDA_15_16_OFFSET:
2046 case R_V850_SDA_16_16_OFFSET:
2047 case R_V850_SDA_16_16_SPLIT_OFFSET:
2048 case R_V810_GPWLO_1:
2049 {
2050 unsigned long gp;
2051 struct bfd_link_hash_entry * h;
2052
2053 if (sym_sec == NULL)
2054 return bfd_reloc_undefined;
2055
2056 /* Get the value of __gp. */
2057 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2058 if (h == NULL
2059 || h->type != bfd_link_hash_defined)
2060 return bfd_reloc_gp_not_found;
2061
2062 gp = (h->u.def.value
2063 + h->u.def.section->output_section->vma
2064 + h->u.def.section->output_offset);
2065
2066 value -= sym_sec->output_section->vma;
2067 value -= (gp - sym_sec->output_section->vma);
2068 }
2069 break;
2070
2071 case R_V850_TDA_4_4_OFFSET:
2072 case R_V850_TDA_4_5_OFFSET:
2073 case R_V850_TDA_7_7_OFFSET:
2074 case R_V850_TDA_7_8_OFFSET:
2075 case R_V850_TDA_6_8_OFFSET:
2076 case R_V850_TDA_16_16_OFFSET:
2077 {
2078 unsigned long ep;
2079 struct bfd_link_hash_entry * h;
2080
2081 /* Get the value of __ep. */
2082 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2083 if (h == NULL
2084 || h->type != bfd_link_hash_defined)
2085 return bfd_reloc_ep_not_found;
2086
2087 ep = (h->u.def.value
2088 + h->u.def.section->output_section->vma
2089 + h->u.def.section->output_offset);
2090
2091 value -= ep;
2092 }
2093 break;
2094
2095 case R_V850_CALLT_6_7_OFFSET:
2096 {
2097 unsigned long ctbp;
2098 struct bfd_link_hash_entry * h;
2099
2100 /* Get the value of __ctbp. */
2101 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2102 if (h == NULL
2103 || h->type != bfd_link_hash_defined)
2104 return bfd_reloc_ctbp_not_found;
2105
2106 ctbp = (h->u.def.value
2107 + h->u.def.section->output_section->vma
2108 + h->u.def.section->output_offset);
2109 value -= ctbp;
2110 }
2111 break;
2112
2113 case R_V850_CALLT_15_16_OFFSET:
2114 case R_V850_CALLT_16_16_OFFSET:
2115 {
2116 unsigned long ctbp;
2117 struct bfd_link_hash_entry * h;
2118
2119 if (sym_sec == NULL)
2120 return bfd_reloc_undefined;
2121
2122 /* Get the value of __ctbp. */
2123 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2124 if (h == NULL
2125 || h->type != bfd_link_hash_defined)
2126 return bfd_reloc_ctbp_not_found;
2127
2128 ctbp = (h->u.def.value
2129 + h->u.def.section->output_section->vma
2130 + h->u.def.section->output_offset);
2131
2132 value -= sym_sec->output_section->vma;
2133 value -= (ctbp - sym_sec->output_section->vma);
2134 }
2135 break;
2136
2137 case R_V850_NONE:
2138 case R_V810_NONE:
2139 case R_V850_GNU_VTINHERIT:
2140 case R_V850_GNU_VTENTRY:
2141 case R_V850_LONGCALL:
2142 case R_V850_LONGJUMP:
2143 case R_V850_ALIGN:
2144 return bfd_reloc_ok;
2145
2146 default:
2147 #ifdef DEBUG
2148 fprintf (stderr, "%B: reloc number %d not recognised\n", input_bfd, r_type);
2149 #endif
2150 return bfd_reloc_notsupported;
2151 }
2152
2153 /* Perform the relocation. */
2154 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2155 }
2156
2157 /* Relocate an V850 ELF section. */
2158
2159 static bfd_boolean
v850_elf_relocate_section(bfd * output_bfd,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)2160 v850_elf_relocate_section (bfd *output_bfd,
2161 struct bfd_link_info *info,
2162 bfd *input_bfd,
2163 asection *input_section,
2164 bfd_byte *contents,
2165 Elf_Internal_Rela *relocs,
2166 Elf_Internal_Sym *local_syms,
2167 asection **local_sections)
2168 {
2169 Elf_Internal_Shdr *symtab_hdr;
2170 struct elf_link_hash_entry **sym_hashes;
2171 Elf_Internal_Rela *rel;
2172 Elf_Internal_Rela *relend;
2173
2174 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2175 sym_hashes = elf_sym_hashes (input_bfd);
2176
2177 /* Reset the list of remembered HI16S relocs to empty. */
2178 free_hi16s = previous_hi16s;
2179 previous_hi16s = NULL;
2180 hi16s_counter = 0;
2181
2182 rel = relocs;
2183 relend = relocs + input_section->reloc_count;
2184 for (; rel < relend; rel++)
2185 {
2186 unsigned int r_type;
2187 reloc_howto_type *howto;
2188 unsigned long r_symndx;
2189 Elf_Internal_Sym *sym;
2190 asection *sec;
2191 struct elf_link_hash_entry *h;
2192 bfd_vma relocation;
2193 bfd_reloc_status_type r;
2194
2195 r_symndx = ELF32_R_SYM (rel->r_info);
2196 r_type = ELF32_R_TYPE (rel->r_info);
2197
2198 if (r_type == R_V850_GNU_VTENTRY
2199 || r_type == R_V850_GNU_VTINHERIT)
2200 continue;
2201
2202 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2203 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2204 else
2205 howto = v850_elf_howto_table + r_type;
2206
2207 BFD_ASSERT (r_type == howto->type);
2208
2209 h = NULL;
2210 sym = NULL;
2211 sec = NULL;
2212 if (r_symndx < symtab_hdr->sh_info)
2213 {
2214 sym = local_syms + r_symndx;
2215 sec = local_sections[r_symndx];
2216 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2217 }
2218 else
2219 {
2220 bfd_boolean unresolved_reloc, warned, ignored;
2221
2222 /* Note - this check is delayed until now as it is possible and
2223 valid to have a file without any symbols but with relocs that
2224 can be processed. */
2225 if (sym_hashes == NULL)
2226 {
2227 info->callbacks->warning
2228 (info, "no hash table available",
2229 NULL, input_bfd, input_section, (bfd_vma) 0);
2230
2231 return FALSE;
2232 }
2233
2234 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2235 r_symndx, symtab_hdr, sym_hashes,
2236 h, sec, relocation,
2237 unresolved_reloc, warned, ignored);
2238 }
2239
2240 if (sec != NULL && discarded_section (sec))
2241 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2242 rel, 1, relend, howto, 0, contents);
2243
2244 if (bfd_link_relocatable (info))
2245 continue;
2246
2247 /* FIXME: We should use the addend, but the COFF relocations don't. */
2248 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2249 input_section,
2250 contents, rel->r_offset,
2251 relocation, rel->r_addend,
2252 info, sec, h == NULL);
2253
2254 if (r != bfd_reloc_ok)
2255 {
2256 const char * name;
2257 const char * msg = NULL;
2258
2259 if (h != NULL)
2260 name = h->root.root.string;
2261 else
2262 {
2263 name = (bfd_elf_string_from_elf_section
2264 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2265 if (name == NULL || *name == '\0')
2266 name = bfd_section_name (input_bfd, sec);
2267 }
2268
2269 switch ((int) r)
2270 {
2271 case bfd_reloc_overflow:
2272 (*info->callbacks->reloc_overflow)
2273 (info, (h ? &h->root : NULL), name, howto->name,
2274 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2275 break;
2276
2277 case bfd_reloc_undefined:
2278 (*info->callbacks->undefined_symbol)
2279 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
2280 break;
2281
2282 case bfd_reloc_outofrange:
2283 msg = _("internal error: out of range error");
2284 goto common_error;
2285
2286 case bfd_reloc_notsupported:
2287 msg = _("internal error: unsupported relocation error");
2288 goto common_error;
2289
2290 case bfd_reloc_dangerous:
2291 msg = _("internal error: dangerous relocation");
2292 goto common_error;
2293
2294 case bfd_reloc_gp_not_found:
2295 msg = _("could not locate special linker symbol __gp");
2296 goto common_error;
2297
2298 case bfd_reloc_ep_not_found:
2299 msg = _("could not locate special linker symbol __ep");
2300 goto common_error;
2301
2302 case bfd_reloc_ctbp_not_found:
2303 msg = _("could not locate special linker symbol __ctbp");
2304 goto common_error;
2305
2306 default:
2307 msg = _("internal error: unknown error");
2308 /* fall through */
2309
2310 common_error:
2311 (*info->callbacks->warning) (info, msg, name, input_bfd,
2312 input_section, rel->r_offset);
2313 break;
2314 }
2315 }
2316 }
2317
2318 return TRUE;
2319 }
2320
2321 static asection *
v850_elf_gc_mark_hook(asection * sec,struct bfd_link_info * info,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)2322 v850_elf_gc_mark_hook (asection *sec,
2323 struct bfd_link_info *info,
2324 Elf_Internal_Rela *rel,
2325 struct elf_link_hash_entry *h,
2326 Elf_Internal_Sym *sym)
2327 {
2328 if (h != NULL)
2329 switch (ELF32_R_TYPE (rel->r_info))
2330 {
2331 case R_V850_GNU_VTINHERIT:
2332 case R_V850_GNU_VTENTRY:
2333 return NULL;
2334 }
2335
2336 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2337 }
2338
2339 static void
v850_set_note(bfd * abfd,asection * s,enum v850_notes note,unsigned int val)2340 v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
2341 {
2342 bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
2343
2344 bfd_put_32 (abfd, 4, data + 0);
2345 bfd_put_32 (abfd, 4, data + 4);
2346 bfd_put_32 (abfd, note, data + 8);
2347 memcpy (data + 12, V850_NOTE_NAME, 4);
2348 bfd_put_32 (abfd, val, data + 16);
2349 }
2350
2351 /* Create the note section if not already present. This is done early so
2352 that the linker maps the sections to the right place in the output. */
2353
2354 static asection *
v850_elf_make_note_section(bfd * abfd)2355 v850_elf_make_note_section (bfd * abfd)
2356 {
2357 asection *s;
2358 bfd_byte *data;
2359 flagword flags;
2360 enum v850_notes id;
2361
2362 /* Make the note section. */
2363 flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
2364
2365 s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
2366 if (s == NULL)
2367 return NULL;
2368
2369 if (!bfd_set_section_alignment (abfd, s, 2))
2370 return NULL;
2371
2372 /* Allocate space for all known notes. */
2373 if (!bfd_set_section_size (abfd, s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
2374 return NULL;
2375
2376 data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
2377 if (data == NULL)
2378 return NULL;
2379
2380 s->contents = data;
2381
2382 /* Provide default (= uninitilaised) values for all of the notes. */
2383 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2384 v850_set_note (abfd, s, id, 0);
2385
2386 return s;
2387 }
2388
2389 /* Create the note section if not already present. This is done early so
2390 that the linker maps the sections to the right place in the output. */
2391
2392 bfd_boolean
v850_elf_create_sections(struct bfd_link_info * info)2393 v850_elf_create_sections (struct bfd_link_info * info)
2394 {
2395 bfd * ibfd;
2396
2397 /* If we already have a note section, do not make another. */
2398 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2399 if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
2400 return TRUE;
2401
2402 return v850_elf_make_note_section (info->input_bfds) != NULL;
2403 }
2404
2405 bfd_boolean
v850_elf_set_note(bfd * abfd,enum v850_notes note,unsigned int val)2406 v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
2407 {
2408 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2409
2410 if (val > 2)
2411 /* At the moment, no known note has a value over 2. */
2412 return FALSE;
2413
2414 if (notes == NULL)
2415 notes = v850_elf_make_note_section (abfd);
2416 if (notes == NULL)
2417 return FALSE;
2418
2419 v850_set_note (abfd, notes, note, val);
2420 return TRUE;
2421 }
2422
2423 /* Copy a v850 note section from one object module to another. */
2424
2425 static void
v850_elf_copy_notes(bfd * ibfd,bfd * obfd)2426 v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
2427 {
2428 asection * onotes;
2429 asection * inotes;
2430
2431 /* If the output bfd does not have a note section, then
2432 skip the merge. The normal input to output section
2433 copying will take care of everythng for us. */
2434 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2435 return;
2436
2437 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
2438 return;
2439
2440 if (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes))
2441 {
2442 bfd_byte * icont;
2443 bfd_byte * ocont;
2444
2445 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2446 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2447
2448 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2449 /* If the output is being stripped then it is possible for
2450 the notes section to disappear. In this case do nothing. */
2451 return;
2452
2453 /* Copy/overwrite notes from the input to the output. */
2454 memcpy (ocont, icont, bfd_section_size (obfd, onotes));
2455 }
2456 }
2457
2458 /* Copy backend specific data from one object module to another. */
2459
2460 static bfd_boolean
v850_elf_copy_private_bfd_data(bfd * ibfd,bfd * obfd)2461 v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
2462 {
2463 v850_elf_copy_notes (ibfd, obfd);
2464 return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
2465 }
2466 #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
2467
2468 static bfd_boolean
v850_elf_merge_notes(bfd * ibfd,bfd * obfd)2469 v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
2470 {
2471 asection * onotes;
2472 asection * inotes;
2473 bfd_boolean result = TRUE;
2474
2475 /* If the output bfd does not have a note section, then
2476 skip the merge. The normal input to output section
2477 copying will take care of everythng for us. */
2478 if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
2479 return TRUE;
2480
2481 if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
2482 {
2483 enum v850_notes id;
2484 bfd_byte * icont;
2485 bfd_byte * ocont;
2486
2487 BFD_ASSERT (bfd_section_size (ibfd, inotes) == bfd_section_size (obfd, onotes));
2488
2489 if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
2490 BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
2491
2492 if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
2493 BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
2494
2495 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2496 {
2497 unsigned int ival;
2498 unsigned int oval;
2499 bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2500 bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
2501
2502 ival = bfd_get_32 (ibfd, idata);
2503 oval = bfd_get_32 (obfd, odata);
2504
2505 if (ival == 0 || ival == oval)
2506 continue;
2507
2508 if (oval == 0)
2509 {
2510 bfd_put_32 (obfd, ival, odata);
2511 v850_set_note (obfd, onotes, id, ival);
2512 continue;
2513 }
2514
2515 /* We have a mismatch. The ABI defines how to handle
2516 this siutation on a per note type basis. */
2517 switch (id)
2518 {
2519 case V850_NOTE_ALIGNMENT:
2520 if (oval == EF_RH850_DATA_ALIGN4)
2521 {
2522 _bfd_error_handler
2523 /* xgettext:c-format */
2524 (_("error: %B needs 8-byte alignment but %B is set for 4-byte alignment"),
2525 ibfd, obfd);
2526 result = FALSE;
2527 }
2528 else
2529 /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
2530 Leave the obfd alignment as it is. */
2531 BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
2532
2533 break;
2534
2535 case V850_NOTE_DATA_SIZE:
2536 if (oval == EF_RH850_DOUBLE32)
2537 {
2538 _bfd_error_handler
2539 /* xgettext:c-format */
2540 (_("error: %B uses 64-bit doubles but "
2541 "%B uses 32-bit doubles"), ibfd, obfd);
2542 result = FALSE;
2543 }
2544 else
2545 /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
2546 This is acceptable. Honest, that is what the ABI says. */
2547 BFD_ASSERT (oval == EF_RH850_DOUBLE64);
2548 break;
2549
2550 case V850_NOTE_FPU_INFO:
2551 if (oval == EF_RH850_FPU20)
2552 {
2553 _bfd_error_handler
2554 /* xgettext:c-format */
2555 (_("error: %B uses FPU-3.0 but %B only supports FPU-2.0"),
2556 ibfd, obfd);
2557 result = FALSE;
2558 }
2559 else
2560 /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
2561 BFD_ASSERT (oval == EF_RH850_FPU30);
2562
2563 break;
2564
2565 default:
2566 /* None of the other conflicts matter.
2567 Stick with the current output values. */
2568 break;
2569 }
2570 }
2571
2572 /* FIXME: We should also check for conflicts between the notes
2573 and the EF flags in the ELF header. */
2574 }
2575
2576 return result;
2577 }
2578
2579 static void
print_v850_note(bfd * abfd,FILE * file,bfd_byte * data,enum v850_notes id)2580 print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
2581 {
2582 unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
2583
2584 switch (id)
2585 {
2586 case V850_NOTE_ALIGNMENT:
2587 fprintf (file, _(" alignment of 8-byte entities: "));
2588 switch (value)
2589 {
2590 case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
2591 case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
2592 case 0: fprintf (file, _("not set")); break;
2593 default: fprintf (file, _("unknown: %x"), value); break;
2594 }
2595 fputc ('\n', file);
2596 break;
2597
2598 case V850_NOTE_DATA_SIZE:
2599 fprintf (file, _(" size of doubles: "));
2600 switch (value)
2601 {
2602 case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
2603 case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
2604 case 0: fprintf (file, _("not set")); break;
2605 default: fprintf (file, _("unknown: %x"), value); break;
2606 }
2607 fputc ('\n', file);
2608 break;
2609
2610 case V850_NOTE_FPU_INFO:
2611 fprintf (file, _(" FPU support required: "));
2612 switch (value)
2613 {
2614 case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
2615 case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
2616 case 0: fprintf (file, _("none")); break;
2617 default: fprintf (file, _("unknown: %x"), value); break;
2618 }
2619 fputc ('\n', file);
2620 break;
2621
2622 case V850_NOTE_SIMD_INFO:
2623 fprintf (file, _("SIMD use: "));
2624 switch (value)
2625 {
2626 case EF_RH850_SIMD: fprintf (file, _("yes")); break;
2627 case 0: fprintf (file, _("no")); break;
2628 default: fprintf (file, _("unknown: %x"), value); break;
2629 }
2630 fputc ('\n', file);
2631 break;
2632
2633 case V850_NOTE_CACHE_INFO:
2634 fprintf (file, _("CACHE use: "));
2635 switch (value)
2636 {
2637 case EF_RH850_CACHE: fprintf (file, _("yes")); break;
2638 case 0: fprintf (file, _("no")); break;
2639 default: fprintf (file, _("unknown: %x"), value); break;
2640 }
2641 fputc ('\n', file);
2642 break;
2643
2644 case V850_NOTE_MMU_INFO:
2645 fprintf (file, _("MMU use: "));
2646 switch (value)
2647 {
2648 case EF_RH850_MMU: fprintf (file, _("yes")); break;
2649 case 0: fprintf (file, _("no")); break;
2650 default: fprintf (file, _("unknown: %x"), value); break;
2651 }
2652 fputc ('\n', file);
2653 break;
2654
2655 default:
2656 BFD_ASSERT (0);
2657 }
2658 }
2659
2660 static void
v850_elf_print_notes(bfd * abfd,FILE * file)2661 v850_elf_print_notes (bfd * abfd, FILE * file)
2662 {
2663 asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
2664 enum v850_notes id;
2665
2666 if (notes == NULL || notes->contents == NULL)
2667 return;
2668
2669 BFD_ASSERT (bfd_section_size (abfd, notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
2670
2671 for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
2672 print_v850_note (abfd, file, notes->contents, id);
2673 }
2674
2675 /* Set the right machine number and architecture. */
2676
2677 static bfd_boolean
v850_elf_object_p(bfd * abfd)2678 v850_elf_object_p (bfd *abfd)
2679 {
2680 enum bfd_architecture arch;
2681 unsigned long mach;
2682
2683 switch (elf_elfheader (abfd)->e_machine)
2684 {
2685 case EM_V800:
2686 arch = bfd_arch_v850_rh850;
2687 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2688 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2689 break;
2690
2691 case EM_CYGNUS_V850:
2692 case EM_V850:
2693 arch = bfd_arch_v850;
2694 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2695 {
2696 default:
2697 case E_V850_ARCH: mach = bfd_mach_v850; break;
2698 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2699 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2700 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2701 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2702 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2703 }
2704 break;
2705
2706 default:
2707 return FALSE;
2708 }
2709
2710 return bfd_default_set_arch_mach (abfd, arch, mach);
2711 }
2712
2713 /* Store the machine number in the flags field. */
2714
2715 static void
v850_elf_final_write_processing(bfd * abfd,bfd_boolean linker ATTRIBUTE_UNUSED)2716 v850_elf_final_write_processing (bfd *abfd,
2717 bfd_boolean linker ATTRIBUTE_UNUSED)
2718 {
2719 unsigned long val;
2720
2721 switch (bfd_get_arch (abfd))
2722 {
2723 case bfd_arch_v850_rh850:
2724 val = EF_RH850_ABI;
2725 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2726 val |= EF_V800_850E3;
2727 elf_elfheader (abfd)->e_flags |= val;
2728 break;
2729
2730 case bfd_arch_v850:
2731 switch (bfd_get_mach (abfd))
2732 {
2733 default:
2734 case bfd_mach_v850: val = E_V850_ARCH; break;
2735 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2736 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2737 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2738 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2739 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2740 }
2741 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2742 elf_elfheader (abfd)->e_flags |= val;
2743 break;
2744 default:
2745 break;
2746 }
2747 }
2748
2749 /* Function to keep V850 specific file flags. */
2750
2751 static bfd_boolean
v850_elf_set_private_flags(bfd * abfd,flagword flags)2752 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2753 {
2754 BFD_ASSERT (!elf_flags_init (abfd)
2755 || elf_elfheader (abfd)->e_flags == flags);
2756
2757 elf_elfheader (abfd)->e_flags = flags;
2758 elf_flags_init (abfd) = TRUE;
2759 return TRUE;
2760 }
2761
2762 /* Merge backend specific data from an object file
2763 to the output object file when linking. */
2764
2765 static bfd_boolean
v850_elf_merge_private_bfd_data(bfd * ibfd,struct bfd_link_info * info)2766 v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2767 {
2768 bfd *obfd = info->output_bfd;
2769 flagword out_flags;
2770 flagword in_flags;
2771 bfd_boolean result = TRUE;
2772
2773 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2774 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2775 return TRUE;
2776
2777 result &= v850_elf_merge_notes (ibfd, obfd);
2778
2779 in_flags = elf_elfheader (ibfd)->e_flags;
2780 out_flags = elf_elfheader (obfd)->e_flags;
2781
2782 if (! elf_flags_init (obfd))
2783 {
2784 /* If the input is the default architecture then do not
2785 bother setting the flags for the output architecture,
2786 instead allow future merges to do this. If no future
2787 merges ever set these flags then they will retain their
2788 unitialised values, which surprise surprise, correspond
2789 to the default values. */
2790 if (bfd_get_arch_info (ibfd)->the_default)
2791 return TRUE;
2792
2793 elf_flags_init (obfd) = TRUE;
2794 elf_elfheader (obfd)->e_flags = in_flags;
2795
2796 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2797 && bfd_get_arch_info (obfd)->the_default)
2798 result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2799
2800 return result;
2801 }
2802
2803 /* Check flag compatibility. */
2804 if (in_flags == out_flags)
2805 return result;
2806
2807 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2808 {
2809 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2810 {
2811 _bfd_error_handler
2812 (_("%B: Architecture mismatch with previous modules"), ibfd);
2813 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2814 }
2815
2816 return result;
2817 }
2818
2819 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2820 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2821 {
2822 /* Allow earlier architecture binaries to be linked with later binaries.
2823 Set the output binary to the later architecture, except for v850e1,
2824 which we set to v850e. */
2825 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2826 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2827 return result;
2828
2829 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2830 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2831 {
2832 elf_elfheader (obfd)->e_flags =
2833 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2834 return result;
2835 }
2836
2837 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2838 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2839 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2840 {
2841 elf_elfheader (obfd)->e_flags =
2842 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2843 return result;
2844 }
2845
2846 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2847 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2848 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2849 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2850 {
2851 elf_elfheader (obfd)->e_flags =
2852 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2853 return result;
2854 }
2855
2856 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2857 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2858 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2859 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2860 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2861 {
2862 elf_elfheader (obfd)->e_flags =
2863 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2864 return result;
2865 }
2866
2867 _bfd_error_handler
2868 (_("%B: Architecture mismatch with previous modules"), ibfd);
2869 }
2870
2871 return result;
2872 }
2873
2874 /* Display the flags field. */
2875
2876 static bfd_boolean
v850_elf_print_private_bfd_data(bfd * abfd,void * ptr)2877 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2878 {
2879 FILE * file = (FILE *) ptr;
2880
2881 BFD_ASSERT (abfd != NULL && ptr != NULL);
2882
2883 _bfd_elf_print_private_bfd_data (abfd, ptr);
2884
2885 /* xgettext:c-format. */
2886 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2887
2888 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2889 {
2890 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2891 fprintf (file, _("unknown v850 architecture"));
2892 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2893 fprintf (file, _("v850 E3 architecture"));
2894 else
2895 fprintf (file, _("v850 architecture"));
2896 }
2897 else
2898 {
2899 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2900 {
2901 default:
2902 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2903 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2904 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2905 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2906 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2907 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2908 }
2909 }
2910
2911 fputc ('\n', file);
2912
2913 v850_elf_print_notes (abfd, file);
2914
2915 return TRUE;
2916 }
2917
2918 /* V850 ELF uses four common sections. One is the usual one, and the
2919 others are for (small) objects in one of the special data areas:
2920 small, tiny and zero. All the objects are kept together, and then
2921 referenced via the gp register, the ep register or the r0 register
2922 respectively, which yields smaller, faster assembler code. This
2923 approach is copied from elf32-mips.c. */
2924
2925 static asection v850_elf_scom_section;
2926 static asymbol v850_elf_scom_symbol;
2927 static asymbol * v850_elf_scom_symbol_ptr;
2928 static asection v850_elf_tcom_section;
2929 static asymbol v850_elf_tcom_symbol;
2930 static asymbol * v850_elf_tcom_symbol_ptr;
2931 static asection v850_elf_zcom_section;
2932 static asymbol v850_elf_zcom_symbol;
2933 static asymbol * v850_elf_zcom_symbol_ptr;
2934
2935 /* Given a BFD section, try to locate the
2936 corresponding ELF section index. */
2937
2938 static bfd_boolean
v850_elf_section_from_bfd_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,int * retval)2939 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2940 asection *sec,
2941 int *retval)
2942 {
2943 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2944 *retval = SHN_V850_SCOMMON;
2945 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2946 *retval = SHN_V850_TCOMMON;
2947 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2948 *retval = SHN_V850_ZCOMMON;
2949 else
2950 return FALSE;
2951
2952 return TRUE;
2953 }
2954
2955 /* Handle the special V850 section numbers that a symbol may use. */
2956
2957 static void
v850_elf_symbol_processing(bfd * abfd,asymbol * asym)2958 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2959 {
2960 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2961 unsigned int indx;
2962
2963 indx = elfsym->internal_elf_sym.st_shndx;
2964
2965 /* If the section index is an "ordinary" index, then it may
2966 refer to a v850 specific section created by the assembler.
2967 Check the section's type and change the index it matches.
2968
2969 FIXME: Should we alter the st_shndx field as well ? */
2970
2971 if (indx < elf_numsections (abfd))
2972 switch (elf_elfsections (abfd)[indx]->sh_type)
2973 {
2974 case SHT_V850_SCOMMON:
2975 indx = SHN_V850_SCOMMON;
2976 break;
2977
2978 case SHT_V850_TCOMMON:
2979 indx = SHN_V850_TCOMMON;
2980 break;
2981
2982 case SHT_V850_ZCOMMON:
2983 indx = SHN_V850_ZCOMMON;
2984 break;
2985
2986 default:
2987 break;
2988 }
2989
2990 switch (indx)
2991 {
2992 case SHN_V850_SCOMMON:
2993 if (v850_elf_scom_section.name == NULL)
2994 {
2995 /* Initialize the small common section. */
2996 v850_elf_scom_section.name = ".scommon";
2997 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2998 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2999 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
3000 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
3001 v850_elf_scom_symbol.name = ".scommon";
3002 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
3003 v850_elf_scom_symbol.section = & v850_elf_scom_section;
3004 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
3005 }
3006 asym->section = & v850_elf_scom_section;
3007 asym->value = elfsym->internal_elf_sym.st_size;
3008 break;
3009
3010 case SHN_V850_TCOMMON:
3011 if (v850_elf_tcom_section.name == NULL)
3012 {
3013 /* Initialize the tcommon section. */
3014 v850_elf_tcom_section.name = ".tcommon";
3015 v850_elf_tcom_section.flags = SEC_IS_COMMON;
3016 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
3017 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
3018 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
3019 v850_elf_tcom_symbol.name = ".tcommon";
3020 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
3021 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
3022 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
3023 }
3024 asym->section = & v850_elf_tcom_section;
3025 asym->value = elfsym->internal_elf_sym.st_size;
3026 break;
3027
3028 case SHN_V850_ZCOMMON:
3029 if (v850_elf_zcom_section.name == NULL)
3030 {
3031 /* Initialize the zcommon section. */
3032 v850_elf_zcom_section.name = ".zcommon";
3033 v850_elf_zcom_section.flags = SEC_IS_COMMON;
3034 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
3035 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
3036 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
3037 v850_elf_zcom_symbol.name = ".zcommon";
3038 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
3039 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
3040 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
3041 }
3042 asym->section = & v850_elf_zcom_section;
3043 asym->value = elfsym->internal_elf_sym.st_size;
3044 break;
3045 }
3046 }
3047
3048 /* Hook called by the linker routine which adds symbols from an object
3049 file. We must handle the special v850 section numbers here. */
3050
3051 static bfd_boolean
v850_elf_add_symbol_hook(bfd * abfd,struct bfd_link_info * info ATTRIBUTE_UNUSED,Elf_Internal_Sym * sym,const char ** namep ATTRIBUTE_UNUSED,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)3052 v850_elf_add_symbol_hook (bfd *abfd,
3053 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3054 Elf_Internal_Sym *sym,
3055 const char **namep ATTRIBUTE_UNUSED,
3056 flagword *flagsp ATTRIBUTE_UNUSED,
3057 asection **secp,
3058 bfd_vma *valp)
3059 {
3060 unsigned int indx = sym->st_shndx;
3061
3062 /* If the section index is an "ordinary" index, then it may
3063 refer to a v850 specific section created by the assembler.
3064 Check the section's type and change the index it matches.
3065
3066 FIXME: Should we alter the st_shndx field as well ? */
3067
3068 if (indx < elf_numsections (abfd))
3069 switch (elf_elfsections (abfd)[indx]->sh_type)
3070 {
3071 case SHT_V850_SCOMMON:
3072 indx = SHN_V850_SCOMMON;
3073 break;
3074
3075 case SHT_V850_TCOMMON:
3076 indx = SHN_V850_TCOMMON;
3077 break;
3078
3079 case SHT_V850_ZCOMMON:
3080 indx = SHN_V850_ZCOMMON;
3081 break;
3082
3083 default:
3084 break;
3085 }
3086
3087 switch (indx)
3088 {
3089 case SHN_V850_SCOMMON:
3090 *secp = bfd_make_section_old_way (abfd, ".scommon");
3091 (*secp)->flags |= SEC_IS_COMMON;
3092 *valp = sym->st_size;
3093 break;
3094
3095 case SHN_V850_TCOMMON:
3096 *secp = bfd_make_section_old_way (abfd, ".tcommon");
3097 (*secp)->flags |= SEC_IS_COMMON;
3098 *valp = sym->st_size;
3099 break;
3100
3101 case SHN_V850_ZCOMMON:
3102 *secp = bfd_make_section_old_way (abfd, ".zcommon");
3103 (*secp)->flags |= SEC_IS_COMMON;
3104 *valp = sym->st_size;
3105 break;
3106 }
3107
3108 return TRUE;
3109 }
3110
3111 static int
v850_elf_link_output_symbol_hook(struct bfd_link_info * info ATTRIBUTE_UNUSED,const char * name ATTRIBUTE_UNUSED,Elf_Internal_Sym * sym,asection * input_sec,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)3112 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3113 const char *name ATTRIBUTE_UNUSED,
3114 Elf_Internal_Sym *sym,
3115 asection *input_sec,
3116 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
3117 {
3118 /* If we see a common symbol, which implies a relocatable link, then
3119 if a symbol was in a special common section in an input file, mark
3120 it as a special common in the output file. */
3121
3122 if (sym->st_shndx == SHN_COMMON)
3123 {
3124 if (strcmp (input_sec->name, ".scommon") == 0)
3125 sym->st_shndx = SHN_V850_SCOMMON;
3126 else if (strcmp (input_sec->name, ".tcommon") == 0)
3127 sym->st_shndx = SHN_V850_TCOMMON;
3128 else if (strcmp (input_sec->name, ".zcommon") == 0)
3129 sym->st_shndx = SHN_V850_ZCOMMON;
3130 }
3131
3132 /* The price we pay for using h->other unused bits as flags in the
3133 linker is cleaning up after ourselves. */
3134
3135 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
3136 | V850_OTHER_ERROR);
3137
3138 return 1;
3139 }
3140
3141 static bfd_boolean
v850_elf_section_from_shdr(bfd * abfd,Elf_Internal_Shdr * hdr,const char * name,int shindex)3142 v850_elf_section_from_shdr (bfd *abfd,
3143 Elf_Internal_Shdr *hdr,
3144 const char *name,
3145 int shindex)
3146 {
3147 /* There ought to be a place to keep ELF backend specific flags, but
3148 at the moment there isn't one. We just keep track of the
3149 sections by their name, instead. */
3150
3151 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
3152 return FALSE;
3153
3154 switch (hdr->sh_type)
3155 {
3156 case SHT_V850_SCOMMON:
3157 case SHT_V850_TCOMMON:
3158 case SHT_V850_ZCOMMON:
3159 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
3160 (bfd_get_section_flags (abfd,
3161 hdr->bfd_section)
3162 | SEC_IS_COMMON)))
3163 return FALSE;
3164 }
3165
3166 return TRUE;
3167 }
3168
3169 /* Set the correct type for a V850 ELF section. We do this
3170 by the section name, which is a hack, but ought to work. */
3171
3172 static bfd_boolean
v850_elf_fake_sections(bfd * abfd ATTRIBUTE_UNUSED,Elf_Internal_Shdr * hdr,asection * sec)3173 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
3174 Elf_Internal_Shdr *hdr,
3175 asection *sec)
3176 {
3177 const char * name;
3178
3179 name = bfd_get_section_name (abfd, sec);
3180
3181 if (strcmp (name, ".scommon") == 0)
3182 hdr->sh_type = SHT_V850_SCOMMON;
3183 else if (strcmp (name, ".tcommon") == 0)
3184 hdr->sh_type = SHT_V850_TCOMMON;
3185 else if (strcmp (name, ".zcommon") == 0)
3186 hdr->sh_type = SHT_V850_ZCOMMON;
3187 /* Tweak the section type of .note.renesas. */
3188 else if (strcmp (name, V850_NOTE_SECNAME) == 0)
3189 {
3190 hdr->sh_type = SHT_RENESAS_INFO;
3191 hdr->sh_entsize = SIZEOF_V850_NOTE;
3192 }
3193
3194 return TRUE;
3195 }
3196
3197 /* Delete some bytes from a section while relaxing. */
3198
3199 static bfd_boolean
v850_elf_relax_delete_bytes(bfd * abfd,asection * sec,bfd_vma addr,bfd_vma toaddr,int count)3200 v850_elf_relax_delete_bytes (bfd *abfd,
3201 asection *sec,
3202 bfd_vma addr,
3203 bfd_vma toaddr,
3204 int count)
3205 {
3206 Elf_Internal_Shdr *symtab_hdr;
3207 Elf32_External_Sym *extsyms;
3208 Elf32_External_Sym *esym;
3209 Elf32_External_Sym *esymend;
3210 int sym_index;
3211 unsigned int sec_shndx;
3212 bfd_byte *contents;
3213 Elf_Internal_Rela *irel;
3214 Elf_Internal_Rela *irelend;
3215 struct elf_link_hash_entry *sym_hash;
3216 Elf_External_Sym_Shndx *shndx;
3217
3218 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3219 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
3220
3221 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
3222
3223 contents = elf_section_data (sec)->this_hdr.contents;
3224
3225 /* The deletion must stop at the next ALIGN reloc for an alignment
3226 power larger than the number of bytes we are deleting. */
3227
3228 /* Actually delete the bytes. */
3229 #if (DEBUG_RELAX & 2)
3230 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
3231 sec->name, addr, toaddr, count );
3232 #endif
3233 memmove (contents + addr, contents + addr + count,
3234 toaddr - addr - count);
3235 memset (contents + toaddr-count, 0, count);
3236
3237 /* Adjust all the relocs. */
3238 irel = elf_section_data (sec)->relocs;
3239 irelend = irel + sec->reloc_count;
3240 if (elf_symtab_shndx_list (abfd))
3241 {
3242 Elf_Internal_Shdr *shndx_hdr;
3243
3244 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
3245 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
3246 }
3247 else
3248 {
3249 shndx = NULL;
3250 }
3251
3252 for (; irel < irelend; irel++)
3253 {
3254 bfd_vma raddr, paddr, symval;
3255 Elf_Internal_Sym isym;
3256
3257 /* Get the new reloc address. */
3258 raddr = irel->r_offset;
3259 if ((raddr >= (addr + count) && raddr < toaddr))
3260 irel->r_offset -= count;
3261
3262 if (raddr >= addr && raddr < addr + count)
3263 {
3264 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
3265 (int) R_V850_NONE);
3266 continue;
3267 }
3268
3269 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
3270 continue;
3271
3272 bfd_elf32_swap_symbol_in (abfd,
3273 extsyms + ELF32_R_SYM (irel->r_info),
3274 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
3275 & isym);
3276
3277 if (isym.st_shndx != sec_shndx)
3278 continue;
3279
3280 /* Get the value of the symbol referred to by the reloc. */
3281 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
3282 {
3283 symval = isym.st_value;
3284 #if (DEBUG_RELAX & 2)
3285 {
3286 char * name = bfd_elf_string_from_elf_section
3287 (abfd, symtab_hdr->sh_link, isym.st_name);
3288 fprintf (stderr,
3289 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3290 sec->name, name, isym.st_name,
3291 sec->output_section->vma, sec->output_offset,
3292 isym.st_value, irel->r_addend);
3293 }
3294 #endif
3295 }
3296 else
3297 {
3298 unsigned long indx;
3299 struct elf_link_hash_entry * h;
3300
3301 /* An external symbol. */
3302 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3303
3304 h = elf_sym_hashes (abfd) [indx];
3305 BFD_ASSERT (h != NULL);
3306
3307 symval = h->root.u.def.value;
3308 #if (DEBUG_RELAX & 2)
3309 fprintf (stderr,
3310 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3311 sec->name, h->root.root.string, h->root.u.def.value,
3312 sec->output_section->vma, sec->output_offset, irel->r_addend);
3313 #endif
3314 }
3315
3316 paddr = symval + irel->r_addend;
3317
3318 if ( (symval >= addr + count && symval < toaddr)
3319 && (paddr < addr + count || paddr >= toaddr))
3320 irel->r_addend += count;
3321 else if ( (symval < addr + count || symval >= toaddr)
3322 && (paddr >= addr + count && paddr < toaddr))
3323 irel->r_addend -= count;
3324 }
3325
3326 /* Adjust the local symbols defined in this section. */
3327 esym = extsyms;
3328 esymend = esym + symtab_hdr->sh_info;
3329
3330 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
3331 {
3332 Elf_Internal_Sym isym;
3333
3334 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3335
3336 if (isym.st_shndx == sec_shndx
3337 && isym.st_value >= addr + count
3338 && isym.st_value < toaddr)
3339 {
3340 isym.st_value -= count;
3341
3342 if (isym.st_value + isym.st_size >= toaddr)
3343 isym.st_size += count;
3344
3345 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3346 }
3347 else if (isym.st_shndx == sec_shndx
3348 && isym.st_value < addr + count)
3349 {
3350 if (isym.st_value+isym.st_size >= addr + count
3351 && isym.st_value+isym.st_size < toaddr)
3352 isym.st_size -= count;
3353
3354 if (isym.st_value >= addr
3355 && isym.st_value < addr + count)
3356 isym.st_value = addr;
3357
3358 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3359 }
3360 }
3361
3362 /* Now adjust the global symbols defined in this section. */
3363 esym = extsyms + symtab_hdr->sh_info;
3364 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3365
3366 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3367 {
3368 Elf_Internal_Sym isym;
3369
3370 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3371 sym_hash = elf_sym_hashes (abfd) [sym_index];
3372
3373 if (isym.st_shndx == sec_shndx
3374 && ((sym_hash)->root.type == bfd_link_hash_defined
3375 || (sym_hash)->root.type == bfd_link_hash_defweak)
3376 && (sym_hash)->root.u.def.section == sec
3377 && (sym_hash)->root.u.def.value >= addr + count
3378 && (sym_hash)->root.u.def.value < toaddr)
3379 {
3380 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3381 {
3382 isym.st_size += count;
3383 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3384 }
3385
3386 (sym_hash)->root.u.def.value -= count;
3387 }
3388 else if (isym.st_shndx == sec_shndx
3389 && ((sym_hash)->root.type == bfd_link_hash_defined
3390 || (sym_hash)->root.type == bfd_link_hash_defweak)
3391 && (sym_hash)->root.u.def.section == sec
3392 && (sym_hash)->root.u.def.value < addr + count)
3393 {
3394 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3395 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3396 isym.st_size -= count;
3397
3398 if ((sym_hash)->root.u.def.value >= addr
3399 && (sym_hash)->root.u.def.value < addr + count)
3400 (sym_hash)->root.u.def.value = addr;
3401
3402 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3403 }
3404
3405 if (shndx)
3406 ++ shndx;
3407 }
3408
3409 return TRUE;
3410 }
3411
3412 #define NOP_OPCODE (0x0000)
3413 #define MOVHI 0x0640 /* 4byte. */
3414 #define MOVHI_MASK 0x07e0
3415 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3416 #define MOVHI_R2(insn) ((insn) >> 11)
3417 #define MOVEA 0x0620 /* 2byte. */
3418 #define MOVEA_MASK 0x07e0
3419 #define MOVEA_R1(insn) ((insn) & 0x1f)
3420 #define MOVEA_R2(insn) ((insn) >> 11)
3421 #define JARL_4 0x00040780 /* 4byte. */
3422 #define JARL_4_MASK 0xFFFF07FF
3423 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3424 #define ADD_I 0x0240 /* 2byte. */
3425 #define ADD_I_MASK 0x07e0
3426 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3427 #define ADD_R2(insn) ((insn) >> 11)
3428 #define JMP_R 0x0060 /* 2byte. */
3429 #define JMP_R_MASK 0xFFE0
3430 #define JMP_R1(insn) ((insn) & 0x1f)
3431
3432 static bfd_boolean
v850_elf_relax_section(bfd * abfd,asection * sec,struct bfd_link_info * link_info,bfd_boolean * again)3433 v850_elf_relax_section (bfd *abfd,
3434 asection *sec,
3435 struct bfd_link_info *link_info,
3436 bfd_boolean *again)
3437 {
3438 Elf_Internal_Shdr *symtab_hdr;
3439 Elf_Internal_Rela *internal_relocs;
3440 Elf_Internal_Rela *irel;
3441 Elf_Internal_Rela *irelend;
3442 Elf_Internal_Rela *irelalign = NULL;
3443 Elf_Internal_Sym *isymbuf = NULL;
3444 bfd_byte *contents = NULL;
3445 bfd_vma addr = 0;
3446 bfd_vma toaddr;
3447 int align_pad_size = 0;
3448 bfd_boolean result = TRUE;
3449
3450 *again = FALSE;
3451
3452 if (bfd_link_relocatable (link_info)
3453 || (sec->flags & SEC_RELOC) == 0
3454 || sec->reloc_count == 0)
3455 return TRUE;
3456
3457 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3458
3459 internal_relocs = (_bfd_elf_link_read_relocs
3460 (abfd, sec, NULL, NULL, link_info->keep_memory));
3461 if (internal_relocs == NULL)
3462 goto error_return;
3463
3464 irelend = internal_relocs + sec->reloc_count;
3465
3466 while (addr < sec->size)
3467 {
3468 toaddr = sec->size;
3469
3470 for (irel = internal_relocs; irel < irelend; irel ++)
3471 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3472 && irel->r_offset > addr
3473 && irel->r_offset < toaddr)
3474 toaddr = irel->r_offset;
3475
3476 #ifdef DEBUG_RELAX
3477 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3478 addr, toaddr, align_pad_size);
3479 #endif
3480 if (irelalign)
3481 {
3482 bfd_vma alignto;
3483 bfd_vma alignmoveto;
3484
3485 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3486 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3487
3488 if (alignmoveto < alignto)
3489 {
3490 bfd_vma i;
3491
3492 align_pad_size = alignto - alignmoveto;
3493 #ifdef DEBUG_RELAX
3494 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3495 alignmoveto, toaddr, align_pad_size);
3496 #endif
3497 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3498 toaddr, align_pad_size))
3499 goto error_return;
3500
3501 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3502 (i + 1) < toaddr; i += 2)
3503 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3504
3505 addr = alignmoveto;
3506 }
3507 else
3508 align_pad_size = 0;
3509 }
3510
3511 for (irel = internal_relocs; irel < irelend; irel++)
3512 {
3513 bfd_vma laddr;
3514 bfd_vma addend;
3515 bfd_vma symval;
3516 int insn[5];
3517 int no_match = -1;
3518 Elf_Internal_Rela *hi_irelfn;
3519 Elf_Internal_Rela *lo_irelfn;
3520 Elf_Internal_Rela *irelcall;
3521 bfd_signed_vma foff;
3522 unsigned int r_type;
3523
3524 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3525 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3526 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3527 continue;
3528
3529 #ifdef DEBUG_RELAX
3530 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3531 irel->r_info,
3532 irel->r_offset,
3533 irel->r_addend );
3534 #endif
3535
3536 /* Get the section contents. */
3537 if (contents == NULL)
3538 {
3539 if (elf_section_data (sec)->this_hdr.contents != NULL)
3540 contents = elf_section_data (sec)->this_hdr.contents;
3541 else
3542 {
3543 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3544 goto error_return;
3545 }
3546 }
3547
3548 /* Read this BFD's local symbols if we haven't done so already. */
3549 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3550 {
3551 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3552 if (isymbuf == NULL)
3553 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3554 symtab_hdr->sh_info, 0,
3555 NULL, NULL, NULL);
3556 if (isymbuf == NULL)
3557 goto error_return;
3558 }
3559
3560 laddr = irel->r_offset;
3561
3562 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3563 {
3564 /* Check code for -mlong-calls output. */
3565 if (laddr + 16 <= (bfd_vma) sec->size)
3566 {
3567 insn[0] = bfd_get_16 (abfd, contents + laddr);
3568 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3569 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3570 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3571 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3572
3573 if ((insn[0] & MOVHI_MASK) != MOVHI
3574 || MOVHI_R1 (insn[0]) != 0)
3575 no_match = 0;
3576
3577 if (no_match < 0
3578 && ((insn[1] & MOVEA_MASK) != MOVEA
3579 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3580 no_match = 1;
3581
3582 if (no_match < 0
3583 && (insn[2] & JARL_4_MASK) != JARL_4)
3584 no_match = 2;
3585
3586 if (no_match < 0
3587 && ((insn[3] & ADD_I_MASK) != ADD_I
3588 || ADD_I5 (insn[3]) != 4
3589 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3590 no_match = 3;
3591
3592 if (no_match < 0
3593 && ((insn[4] & JMP_R_MASK) != JMP_R
3594 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3595 no_match = 4;
3596 }
3597 else
3598 {
3599 _bfd_error_handler
3600 /* xgettext:c-format */
3601 (_("%B: %#Lx: warning: R_V850_LONGCALL points to "
3602 "unrecognized insns"),
3603 abfd, irel->r_offset);
3604 continue;
3605 }
3606
3607 if (no_match >= 0)
3608 {
3609 _bfd_error_handler
3610 /* xgettext:c-format */
3611 (_("%B: %#Lx: warning: R_V850_LONGCALL points to "
3612 "unrecognized insn %#x"),
3613 abfd,
3614 irel->r_offset + no_match,
3615 insn[no_match]);
3616 continue;
3617 }
3618
3619 /* Get the reloc for the address from which the register is
3620 being loaded. This reloc will tell us which function is
3621 actually being called. */
3622
3623 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3624 {
3625 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3626
3627 if (hi_irelfn->r_offset == laddr + 2
3628 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3629 break;
3630 }
3631
3632 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3633 {
3634 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3635
3636 if (lo_irelfn->r_offset == laddr + 6
3637 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3638 break;
3639 }
3640
3641 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3642 {
3643 r_type = ELF32_R_TYPE (irelcall->r_info);
3644
3645 if (irelcall->r_offset == laddr + 8
3646 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3647 break;
3648 }
3649
3650 if ( hi_irelfn == irelend
3651 || lo_irelfn == irelend
3652 || irelcall == irelend)
3653 {
3654 _bfd_error_handler
3655 /* xgettext:c-format */
3656 (_("%B: %#Lx: warning: R_V850_LONGCALL points to "
3657 "unrecognized reloc"),
3658 abfd, irel->r_offset);
3659
3660 continue;
3661 }
3662
3663 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3664 {
3665 Elf_Internal_Sym * isym;
3666
3667 /* A local symbol. */
3668 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3669
3670 symval = isym->st_value;
3671 }
3672 else
3673 {
3674 unsigned long indx;
3675 struct elf_link_hash_entry * h;
3676
3677 /* An external symbol. */
3678 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3679 h = elf_sym_hashes (abfd)[indx];
3680 BFD_ASSERT (h != NULL);
3681
3682 if ( h->root.type != bfd_link_hash_defined
3683 && h->root.type != bfd_link_hash_defweak)
3684 /* This appears to be a reference to an undefined
3685 symbol. Just ignore it--it will be caught by the
3686 regular reloc processing. */
3687 continue;
3688
3689 symval = h->root.u.def.value;
3690 }
3691
3692 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3693 {
3694 _bfd_error_handler
3695 /* xgettext:c-format */
3696 (_("%B: %#Lx: warning: R_V850_LONGCALL points to "
3697 "unrecognized reloc %#Lx"),
3698 abfd, irel->r_offset,
3699 irelcall->r_offset);
3700 continue;
3701 }
3702
3703 /* Get the value of the symbol referred to by the reloc. */
3704 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3705 {
3706 Elf_Internal_Sym *isym;
3707 asection *sym_sec;
3708
3709 /* A local symbol. */
3710 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3711
3712 if (isym->st_shndx == SHN_UNDEF)
3713 sym_sec = bfd_und_section_ptr;
3714 else if (isym->st_shndx == SHN_ABS)
3715 sym_sec = bfd_abs_section_ptr;
3716 else if (isym->st_shndx == SHN_COMMON)
3717 sym_sec = bfd_com_section_ptr;
3718 else
3719 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3720 symval = (isym->st_value
3721 + sym_sec->output_section->vma
3722 + sym_sec->output_offset);
3723 }
3724 else
3725 {
3726 unsigned long indx;
3727 struct elf_link_hash_entry *h;
3728
3729 /* An external symbol. */
3730 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3731 h = elf_sym_hashes (abfd)[indx];
3732 BFD_ASSERT (h != NULL);
3733
3734 if ( h->root.type != bfd_link_hash_defined
3735 && h->root.type != bfd_link_hash_defweak)
3736 /* This appears to be a reference to an undefined
3737 symbol. Just ignore it--it will be caught by the
3738 regular reloc processing. */
3739 continue;
3740
3741 symval = (h->root.u.def.value
3742 + h->root.u.def.section->output_section->vma
3743 + h->root.u.def.section->output_offset);
3744 }
3745
3746 addend = irel->r_addend;
3747
3748 foff = (symval + addend
3749 - (irel->r_offset
3750 + sec->output_section->vma
3751 + sec->output_offset
3752 + 4));
3753 #ifdef DEBUG_RELAX
3754 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3755 irel->r_offset,
3756 (irel->r_offset
3757 + sec->output_section->vma
3758 + sec->output_offset),
3759 symval, addend, foff);
3760 #endif
3761
3762 if (foff < -0x100000 || foff >= 0x100000)
3763 /* After all that work, we can't shorten this function call. */
3764 continue;
3765
3766 /* For simplicity of coding, we are going to modify the section
3767 contents, the section relocs, and the BFD symbol table. We
3768 must tell the rest of the code not to free up this
3769 information. It would be possible to instead create a table
3770 of changes which have to be made, as is done in coff-mips.c;
3771 that would be more work, but would require less memory when
3772 the linker is run. */
3773 elf_section_data (sec)->relocs = internal_relocs;
3774 elf_section_data (sec)->this_hdr.contents = contents;
3775 symtab_hdr->contents = (bfd_byte *) isymbuf;
3776
3777 /* Replace the long call with a jarl. */
3778 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3779 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3780 else
3781 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3782
3783 addend = 0;
3784
3785 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3786 /* If this needs to be changed because of future relaxing,
3787 it will be handled here like other internal IND12W
3788 relocs. */
3789 bfd_put_32 (abfd,
3790 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3791 contents + irel->r_offset);
3792 else
3793 /* We can't fully resolve this yet, because the external
3794 symbol value may be changed by future relaxing.
3795 We let the final link phase handle it. */
3796 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3797 contents + irel->r_offset);
3798
3799 hi_irelfn->r_info =
3800 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3801 lo_irelfn->r_info =
3802 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3803 irelcall->r_info =
3804 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3805
3806 if (! v850_elf_relax_delete_bytes (abfd, sec,
3807 irel->r_offset + 4, toaddr, 12))
3808 goto error_return;
3809
3810 align_pad_size += 12;
3811 }
3812 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3813 {
3814 /* Check code for -mlong-jumps output. */
3815 if (laddr + 10 <= (bfd_vma) sec->size)
3816 {
3817 insn[0] = bfd_get_16 (abfd, contents + laddr);
3818 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3819 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3820
3821 if ((insn[0] & MOVHI_MASK) != MOVHI
3822 || MOVHI_R1 (insn[0]) != 0)
3823 no_match = 0;
3824
3825 if (no_match < 0
3826 && ((insn[1] & MOVEA_MASK) != MOVEA
3827 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3828 no_match = 1;
3829
3830 if (no_match < 0
3831 && ((insn[2] & JMP_R_MASK) != JMP_R
3832 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3833 no_match = 4;
3834 }
3835 else
3836 {
3837 _bfd_error_handler
3838 /* xgettext:c-format */
3839 (_("%B: %#Lx: warning: R_V850_LONGJUMP points to "
3840 "unrecognized insns"),
3841 abfd, irel->r_offset);
3842 continue;
3843 }
3844
3845 if (no_match >= 0)
3846 {
3847 _bfd_error_handler
3848 /* xgettext:c-format */
3849 (_("%B: %#Lx: warning: R_V850_LONGJUMP points to "
3850 "unrecognized insn %#x"),
3851 abfd,
3852 irel->r_offset + no_match,
3853 insn[no_match]);
3854 continue;
3855 }
3856
3857 /* Get the reloc for the address from which the register is
3858 being loaded. This reloc will tell us which function is
3859 actually being called. */
3860 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3861 {
3862 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3863
3864 if (hi_irelfn->r_offset == laddr + 2
3865 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3866 break;
3867 }
3868
3869 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3870 {
3871 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3872
3873 if (lo_irelfn->r_offset == laddr + 6
3874 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3875 break;
3876 }
3877
3878 if ( hi_irelfn == irelend
3879 || lo_irelfn == irelend)
3880 {
3881 _bfd_error_handler
3882 /* xgettext:c-format */
3883 (_("%B: %#Lx: warning: R_V850_LONGJUMP points to "
3884 "unrecognized reloc"),
3885 abfd, irel->r_offset);
3886 continue;
3887 }
3888
3889 /* Get the value of the symbol referred to by the reloc. */
3890 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3891 {
3892 Elf_Internal_Sym * isym;
3893 asection * sym_sec;
3894
3895 /* A local symbol. */
3896 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3897
3898 if (isym->st_shndx == SHN_UNDEF)
3899 sym_sec = bfd_und_section_ptr;
3900 else if (isym->st_shndx == SHN_ABS)
3901 sym_sec = bfd_abs_section_ptr;
3902 else if (isym->st_shndx == SHN_COMMON)
3903 sym_sec = bfd_com_section_ptr;
3904 else
3905 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3906 symval = (isym->st_value
3907 + sym_sec->output_section->vma
3908 + sym_sec->output_offset);
3909 #ifdef DEBUG_RELAX
3910 {
3911 char * name = bfd_elf_string_from_elf_section
3912 (abfd, symtab_hdr->sh_link, isym->st_name);
3913
3914 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3915 sym_sec->name, name, isym->st_name,
3916 sym_sec->output_section->vma,
3917 sym_sec->output_offset,
3918 isym->st_value, irel->r_addend);
3919 }
3920 #endif
3921 }
3922 else
3923 {
3924 unsigned long indx;
3925 struct elf_link_hash_entry * h;
3926
3927 /* An external symbol. */
3928 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3929 h = elf_sym_hashes (abfd)[indx];
3930 BFD_ASSERT (h != NULL);
3931
3932 if ( h->root.type != bfd_link_hash_defined
3933 && h->root.type != bfd_link_hash_defweak)
3934 /* This appears to be a reference to an undefined
3935 symbol. Just ignore it--it will be caught by the
3936 regular reloc processing. */
3937 continue;
3938
3939 symval = (h->root.u.def.value
3940 + h->root.u.def.section->output_section->vma
3941 + h->root.u.def.section->output_offset);
3942 #ifdef DEBUG_RELAX
3943 fprintf (stderr,
3944 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3945 sec->name, h->root.root.string, h->root.u.def.value,
3946 sec->output_section->vma, sec->output_offset, irel->r_addend);
3947 #endif
3948 }
3949
3950 addend = irel->r_addend;
3951
3952 foff = (symval + addend
3953 - (irel->r_offset
3954 + sec->output_section->vma
3955 + sec->output_offset
3956 + 4));
3957 #ifdef DEBUG_RELAX
3958 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3959 irel->r_offset,
3960 (irel->r_offset
3961 + sec->output_section->vma
3962 + sec->output_offset),
3963 symval, addend, foff);
3964 #endif
3965 if (foff < -0x100000 || foff >= 0x100000)
3966 /* After all that work, we can't shorten this function call. */
3967 continue;
3968
3969 /* For simplicity of coding, we are going to modify the section
3970 contents, the section relocs, and the BFD symbol table. We
3971 must tell the rest of the code not to free up this
3972 information. It would be possible to instead create a table
3973 of changes which have to be made, as is done in coff-mips.c;
3974 that would be more work, but would require less memory when
3975 the linker is run. */
3976 elf_section_data (sec)->relocs = internal_relocs;
3977 elf_section_data (sec)->this_hdr.contents = contents;
3978 symtab_hdr->contents = (bfd_byte *) isymbuf;
3979
3980 if (foff < -0x100 || foff >= 0x100)
3981 {
3982 /* Replace the long jump with a jr. */
3983
3984 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3985 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3986 else
3987 irel->r_info =
3988 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3989
3990 irel->r_addend = addend;
3991 addend = 0;
3992
3993 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3994 /* If this needs to be changed because of future relaxing,
3995 it will be handled here like other internal IND12W
3996 relocs. */
3997 bfd_put_32 (abfd,
3998 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3999 contents + irel->r_offset);
4000 else
4001 /* We can't fully resolve this yet, because the external
4002 symbol value may be changed by future relaxing.
4003 We let the final link phase handle it. */
4004 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
4005
4006 hi_irelfn->r_info =
4007 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4008 lo_irelfn->r_info =
4009 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4010 if (!v850_elf_relax_delete_bytes (abfd, sec,
4011 irel->r_offset + 4, toaddr, 6))
4012 goto error_return;
4013
4014 align_pad_size += 6;
4015 }
4016 else
4017 {
4018 /* Replace the long jump with a br. */
4019
4020 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
4021 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
4022 else
4023 irel->r_info =
4024 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
4025
4026 irel->r_addend = addend;
4027 addend = 0;
4028
4029 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
4030 /* If this needs to be changed because of future relaxing,
4031 it will be handled here like other internal IND12W
4032 relocs. */
4033 bfd_put_16 (abfd,
4034 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
4035 contents + irel->r_offset);
4036 else
4037 /* We can't fully resolve this yet, because the external
4038 symbol value may be changed by future relaxing.
4039 We let the final link phase handle it. */
4040 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
4041
4042 hi_irelfn->r_info =
4043 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
4044 lo_irelfn->r_info =
4045 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
4046 if (!v850_elf_relax_delete_bytes (abfd, sec,
4047 irel->r_offset + 2, toaddr, 8))
4048 goto error_return;
4049
4050 align_pad_size += 8;
4051 }
4052 }
4053 }
4054
4055 irelalign = NULL;
4056 for (irel = internal_relocs; irel < irelend; irel++)
4057 {
4058 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
4059 && irel->r_offset == toaddr)
4060 {
4061 irel->r_offset -= align_pad_size;
4062
4063 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
4064 irelalign = irel;
4065 }
4066 }
4067
4068 addr = toaddr;
4069 }
4070
4071 if (!irelalign)
4072 {
4073 #ifdef DEBUG_RELAX
4074 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
4075 align_pad_size,
4076 sec->size,
4077 sec->size - align_pad_size);
4078 #endif
4079 sec->size -= align_pad_size;
4080 }
4081
4082 finish:
4083 if (internal_relocs != NULL
4084 && elf_section_data (sec)->relocs != internal_relocs)
4085 free (internal_relocs);
4086
4087 if (contents != NULL
4088 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
4089 free (contents);
4090
4091 if (isymbuf != NULL
4092 && symtab_hdr->contents != (bfd_byte *) isymbuf)
4093 free (isymbuf);
4094
4095 return result;
4096
4097 error_return:
4098 result = FALSE;
4099 goto finish;
4100 }
4101
4102 static const struct bfd_elf_special_section v850_elf_special_sections[] =
4103 {
4104 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
4105 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4106 + SHF_EXECINSTR) },
4107 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4108 + SHF_V850_GPREL) },
4109 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
4110 + SHF_V850_R0REL) },
4111 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4112 + SHF_V850_GPREL) },
4113 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
4114 + SHF_V850_GPREL) },
4115 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4116 + SHF_V850_GPREL) },
4117 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4118 + SHF_V850_EPREL) },
4119 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
4120 + SHF_V850_R0REL) },
4121 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4122 + SHF_V850_EPREL) },
4123 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
4124 + SHF_V850_R0REL) },
4125 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
4126 + SHF_V850_R0REL) },
4127 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
4128 + SHF_V850_R0REL) },
4129 { NULL, 0, 0, 0, 0 }
4130 };
4131
4132 #define TARGET_LITTLE_SYM v850_elf32_vec
4133 #define TARGET_LITTLE_NAME "elf32-v850"
4134 #define ELF_ARCH bfd_arch_v850
4135 #define ELF_MACHINE_CODE EM_V850
4136 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
4137 #define ELF_MAXPAGESIZE 0x1000
4138
4139 #define elf_info_to_howto v850_elf_info_to_howto_rela
4140 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
4141
4142 #define elf_backend_check_relocs v850_elf_check_relocs
4143 #define elf_backend_relocate_section v850_elf_relocate_section
4144 #define elf_backend_object_p v850_elf_object_p
4145 #define elf_backend_final_write_processing v850_elf_final_write_processing
4146 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
4147 #define elf_backend_symbol_processing v850_elf_symbol_processing
4148 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
4149 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
4150 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
4151 #define elf_backend_fake_sections v850_elf_fake_sections
4152 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
4153 #define elf_backend_special_sections v850_elf_special_sections
4154
4155 #define elf_backend_can_gc_sections 1
4156 #define elf_backend_rela_normal 1
4157
4158 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
4159 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
4160
4161 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
4162 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
4163 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
4164 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
4165 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
4166 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
4167
4168 #define elf_symbol_leading_char '_'
4169
4170 #undef elf32_bed
4171 #define elf32_bed elf32_v850_bed
4172
4173 #include "elf32-target.h"
4174
4175 /* Map BFD reloc types to V800 ELF reloc types. */
4176
4177 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
4178 {
4179 { BFD_RELOC_NONE, R_V810_NONE },
4180 { BFD_RELOC_8, R_V810_BYTE },
4181 { BFD_RELOC_16, R_V810_HWORD },
4182 { BFD_RELOC_32, R_V810_WORD },
4183 { BFD_RELOC_LO16, R_V810_WLO },
4184 { BFD_RELOC_HI16, R_V810_WHI },
4185 { BFD_RELOC_HI16_S, R_V810_WHI1 },
4186 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
4187 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
4188 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
4189 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
4190 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
4191 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
4192 { BFD_RELOC_V850_23, R_V850_WLO23 },
4193 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
4194 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
4195 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
4196 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
4197 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
4198 };
4199
4200 /* Map a bfd relocation into the appropriate howto structure. */
4201
4202 static reloc_howto_type *
v800_elf_reloc_type_lookup(bfd * abfd,bfd_reloc_code_real_type code)4203 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
4204 {
4205 unsigned int i;
4206
4207 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4208
4209 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
4210 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
4211 {
4212 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
4213 unsigned int idx = elf_reloc_val - R_V810_NONE;
4214
4215 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
4216
4217 return v800_elf_howto_table + idx;
4218 }
4219
4220 #ifdef DEBUG
4221 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
4222 #endif
4223 return NULL;
4224 }
4225
4226 static reloc_howto_type *
v800_elf_reloc_name_lookup(bfd * abfd,const char * r_name)4227 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
4228 {
4229 unsigned int i;
4230
4231 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4232
4233 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
4234 if (v800_elf_howto_table[i].name != NULL
4235 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
4236 return v800_elf_howto_table + i;
4237
4238 return NULL;
4239 }
4240
4241
4242 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
4243
4244 static void
v800_elf_info_to_howto(bfd * abfd,arelent * cache_ptr,Elf_Internal_Rela * dst)4245 v800_elf_info_to_howto (bfd * abfd,
4246 arelent * cache_ptr,
4247 Elf_Internal_Rela * dst)
4248 {
4249 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
4250
4251 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
4252
4253 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
4254
4255 if (r_type == R_V800_NONE)
4256 r_type = R_V810_NONE;
4257
4258 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
4259 r_type -= R_V810_NONE;
4260 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
4261
4262 cache_ptr->howto = v800_elf_howto_table + r_type;
4263 }
4264
4265 #undef TARGET_LITTLE_SYM
4266 #define TARGET_LITTLE_SYM v800_elf32_vec
4267 #undef TARGET_LITTLE_NAME
4268 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
4269 #undef ELF_ARCH
4270 #define ELF_ARCH bfd_arch_v850_rh850
4271 #undef ELF_MACHINE_CODE
4272 #define ELF_MACHINE_CODE EM_V800
4273 #undef ELF_MACHINE_ALT1
4274
4275 #undef elf32_bed
4276 #define elf32_bed elf32_v850_rh850_bed
4277
4278 #undef elf_info_to_howto
4279 #define elf_info_to_howto v800_elf_info_to_howto
4280 #undef elf_info_to_howto_rel
4281 #define elf_info_to_howto_rel NULL
4282 #undef bfd_elf32_bfd_reloc_type_lookup
4283 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
4284 #undef bfd_elf32_bfd_reloc_name_lookup
4285 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
4286
4287 #include "elf32-target.h"
4288