1 /* V850-specific support for 32-bit ELF
2 Copyright 1996-2013 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
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. */
31 #include "libiberty.h"
33 /* Sign-extend a 17-bit number. */
34 #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
36 /* Sign-extend a 22-bit number. */
37 #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
39 static reloc_howto_type v850_elf_howto_table[];
41 /* Look through the relocs for a section during the first phase, and
42 allocate space in the global offset table or procedure linkage
46 v850_elf_check_relocs (bfd *abfd,
47 struct bfd_link_info *info,
49 const Elf_Internal_Rela *relocs)
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;
58 const char *common = NULL;
60 if (info->relocatable)
64 _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B",
68 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
69 sym_hashes = elf_sym_hashes (abfd);
71 rel_end = relocs + sec->reloc_count;
72 for (rel = relocs; rel < rel_end; rel++)
74 unsigned long r_symndx;
75 struct elf_link_hash_entry *h;
77 r_symndx = ELF32_R_SYM (rel->r_info);
78 if (r_symndx < symtab_hdr->sh_info)
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;
87 /* PR15323, ref flags aren't set for references in the same
89 h->root.non_ir_ref = 1;
92 r_type = ELF32_R_TYPE (rel->r_info);
98 /* This relocation describes the C++ object vtable hierarchy.
99 Reconstruct it for later use during GC. */
100 case R_V850_GNU_VTINHERIT:
101 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
105 /* This relocation describes which C++ vtable entries
106 are actually used. Record for later use during GC. */
107 case R_V850_GNU_VTENTRY:
108 BFD_ASSERT (h != NULL);
110 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
114 case R_V850_SDA_16_16_SPLIT_OFFSET:
115 case R_V850_SDA_16_16_OFFSET:
116 case R_V850_SDA_15_16_OFFSET:
120 other = V850_OTHER_SDA;
122 goto small_data_common;
124 case R_V850_ZDA_16_16_SPLIT_OFFSET:
125 case R_V850_ZDA_16_16_OFFSET:
126 case R_V850_ZDA_15_16_OFFSET:
127 other = V850_OTHER_ZDA;
129 goto small_data_common;
131 case R_V850_TDA_4_4_OFFSET:
132 case R_V850_TDA_4_5_OFFSET:
133 case R_V850_TDA_7_7_OFFSET:
134 case R_V850_TDA_6_8_OFFSET:
135 case R_V850_TDA_7_8_OFFSET:
136 case R_V850_TDA_16_16_OFFSET:
137 other = V850_OTHER_TDA;
141 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
146 /* Flag which type of relocation was used. */
148 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
149 && (h->other & V850_OTHER_ERROR) == 0)
152 static char buff[200]; /* XXX */
154 switch (h->other & V850_OTHER_MASK)
157 msg = _("Variable `%s' cannot occupy in multiple small data regions");
159 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
160 msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
162 case V850_OTHER_SDA | V850_OTHER_ZDA:
163 msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
165 case V850_OTHER_SDA | V850_OTHER_TDA:
166 msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
168 case V850_OTHER_ZDA | V850_OTHER_TDA:
169 msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
173 sprintf (buff, msg, h->root.root.string);
174 info->callbacks->warning (info, buff, h->root.root.string,
175 abfd, h->root.u.def.section,
178 bfd_set_error (bfd_error_bad_value);
179 h->other |= V850_OTHER_ERROR;
184 if (h && h->root.type == bfd_link_hash_common
186 && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
190 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
191 section->flags |= SEC_IS_COMMON;
195 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
196 v850_elf_howto_table[ (int)r_type ].name,
197 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
198 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
207 /* In the old version, when an entry was checked out from the table,
208 it was deleted. This produced an error if the entry was needed
209 more than once, as the second attempted retry failed.
211 In the current version, the entry is not deleted, instead we set
212 the field 'found' to TRUE. If a second lookup matches the same
213 entry, then we know that the hi16s reloc has already been updated
214 and does not need to be updated a second time.
216 TODO - TOFIX: If it is possible that we need to restore 2 different
217 addresses from the same table entry, where the first generates an
218 overflow, whilst the second do not, then this code will fail. */
220 typedef struct hi16s_location
224 unsigned long counter;
226 struct hi16s_location * next;
230 static hi16s_location * previous_hi16s;
231 static hi16s_location * free_hi16s;
232 static unsigned long hi16s_counter;
235 remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
237 hi16s_location * entry = NULL;
238 bfd_size_type amt = sizeof (* free_hi16s);
240 /* Find a free structure. */
241 if (free_hi16s == NULL)
242 free_hi16s = bfd_zalloc (abfd, amt);
245 free_hi16s = free_hi16s->next;
247 entry->addend = addend;
248 entry->address = address;
249 entry->counter = hi16s_counter ++;
250 entry->found = FALSE;
251 entry->next = previous_hi16s;
252 previous_hi16s = entry;
254 /* Cope with wrap around of our counter. */
255 if (hi16s_counter == 0)
257 /* XXX: Assume that all counter entries differ only in their low 16 bits. */
258 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
259 entry->counter &= 0xffff;
261 hi16s_counter = 0x10000;
266 find_remembered_hi16s_reloc (bfd_vma addend, bfd_boolean *already_found)
268 hi16s_location *match = NULL;
269 hi16s_location *entry;
272 /* Search the table. Record the most recent entry that matches. */
273 for (entry = previous_hi16s; entry; entry = entry->next)
275 if (entry->addend == addend
276 && (match == NULL || match->counter < entry->counter))
285 /* Extract the address. */
286 addr = match->address;
288 /* Remember if this entry has already been used before. */
290 * already_found = match->found;
292 /* Note that this entry has now been used. */
298 /* Calculate the final operand value for a R_V850_LO16 or
299 R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
300 ADDEND is the sum of the relocation symbol and offset. Store the
301 operand value in *INSN and return true on success.
303 The assembler has already done some of this: If the value stored in
304 the instruction has its 15th bit set, (counting from zero) then the
305 assembler will have added 1 to the value stored in the associated
306 HI16S reloc. So for example, these relocations:
308 movhi hi( fred ), r0, r1
309 movea lo( fred ), r1, r1
311 will store 0 in the value fields for the MOVHI and MOVEA instructions
312 and addend will be the address of fred, but for these instructions:
314 movhi hi( fred + 0x123456 ), r0, r1
315 movea lo( fred + 0x123456 ), r1, r1
317 the value stored in the MOVHI instruction will be 0x12 and the value
318 stored in the MOVEA instruction will be 0x3456. If however the
321 movhi hi( fred + 0x10ffff ), r0, r1
322 movea lo( fred + 0x10ffff ), r1, r1
324 then the value stored in the MOVHI instruction would be 0x11 (not
325 0x10) and the value stored in the MOVEA instruction would be 0xffff.
326 Thus (assuming for the moment that the addend is 0), at run time the
327 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
328 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
329 the instructions were:
331 movhi hi( fred - 1 ), r0, r1
332 movea lo( fred - 1 ), r1, r1
334 then 0 is stored in the MOVHI instruction and -1 is stored in the
337 Overflow can occur if the addition of the value stored in the
338 instruction plus the addend sets the 15th bit when before it was clear.
339 This is because the 15th bit will be sign extended into the high part,
340 thus reducing its value by one, but since the 15th bit was originally
341 clear, the assembler will not have added 1 to the previous HI16S reloc
342 to compensate for this effect. For example:
344 movhi hi( fred + 0x123456 ), r0, r1
345 movea lo( fred + 0x123456 ), r1, r1
347 The value stored in HI16S reloc is 0x12, the value stored in the LO16
348 reloc is 0x3456. If we assume that the address of fred is 0x00007000
349 then the relocations become:
351 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
352 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
354 but when the instructions are executed, the MOVEA instruction's value
355 is signed extended, so the sum becomes:
360 0x0011a456 but 'fred + 0x123456' = 0x0012a456
362 Note that if the 15th bit was set in the value stored in the LO16
363 reloc, then we do not have to do anything:
365 movhi hi( fred + 0x10ffff ), r0, r1
366 movea lo( fred + 0x10ffff ), r1, r1
368 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
369 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
374 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
376 Overflow can also occur if the computation carries into the 16th bit
377 and it also results in the 15th bit having the same value as the 15th
378 bit of the original value. What happens is that the HI16S reloc
379 will have already examined the 15th bit of the original value and
380 added 1 to the high part if the bit is set. This compensates for the
381 sign extension of 15th bit of the result of the computation. But now
382 there is a carry into the 16th bit, and this has not been allowed for.
384 So, for example if fred is at address 0xf000:
386 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
387 movea lo( fred + 0xffff ), r1, r1
389 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
390 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
395 0x0000efff but 'fred + 0xffff' = 0x0001efff
397 Similarly, if the 15th bit remains clear, but overflow occurs into
398 the 16th bit then (assuming the address of fred is 0xf000):
400 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
401 movea lo( fred + 0x7000 ), r1, r1
403 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
404 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
409 0x00006fff but 'fred + 0x7000' = 0x00016fff
411 Note - there is no need to change anything if a carry occurs, and the
412 15th bit changes its value from being set to being clear, as the HI16S
413 reloc will have already added in 1 to the high part for us:
415 movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
416 movea lo( fred + 0xffff ), r1, r1
418 HI16S: 0x0001 + (0x00007000 >> 16)
419 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
422 + 0x00006fff (bit 15 not set, so the top half is zero)
424 0x00016fff which is right (assuming that fred is at 0x7000)
426 but if the 15th bit goes from being clear to being set, then we must
427 once again handle overflow:
429 movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
430 movea lo( fred + 0x7000 ), r1, r1
432 HI16S: 0x0000 + (0x0000ffff >> 16)
433 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
436 + 0x00006fff (bit 15 not set, so the top half is zero)
438 0x00006fff which is wrong (assuming that fred is at 0xffff). */
441 v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
442 unsigned long addend)
444 #define BIT15_SET(x) ((x) & 0x8000)
445 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
447 if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
448 || (OVERFLOWS (addend, *insn)
449 && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
451 bfd_boolean already_updated;
452 bfd_byte *hi16s_address = find_remembered_hi16s_reloc
453 (addend, & already_updated);
455 /* Amend the matching HI16_S relocation. */
456 if (hi16s_address != NULL)
458 if (! already_updated)
460 unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
462 bfd_put_16 (abfd, hi_insn, hi16s_address);
467 (*_bfd_error_handler) (_("FAILED to find previous HI16 reloc"));
474 /* Do not complain if value has top bit set, as this has been
476 *insn = (*insn + addend) & 0xffff;
480 /* FIXME: The code here probably ought to be removed and the code in reloc.c
481 allowed to do its stuff instead. At least for most of the relocs, anyway. */
483 static bfd_reloc_status_type
484 v850_elf_perform_relocation (bfd *abfd,
490 unsigned long result;
491 bfd_signed_vma saddend = (bfd_signed_vma) addend;
497 fprintf (stderr, "reloc number %d not recognised\n", r_type);
499 return bfd_reloc_notsupported;
505 bfd_put_32 (abfd, addend, address);
510 insn = bfd_get_32 (abfd, address);
511 insn &= ~((0x7f << 4) | (0x7fff80 << (16-7)));
512 insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7));
513 bfd_put_32 (abfd, (bfd_vma) insn, address);
517 case R_V850_22_PCREL:
518 if (saddend > 0x1fffff || saddend < -0x200000)
519 return bfd_reloc_overflow;
521 if ((addend % 2) != 0)
522 return bfd_reloc_dangerous;
524 insn = bfd_get_32 (abfd, address);
526 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
527 bfd_put_32 (abfd, (bfd_vma) insn, address);
531 case R_V850_17_PCREL:
532 if (saddend > 0xffff || saddend < -0x10000)
533 return bfd_reloc_overflow;
535 if ((addend % 2) != 0)
536 return bfd_reloc_dangerous;
538 insn = bfd_get_32 (abfd, address);
539 insn &= ~ 0xfffe0010;
540 insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4));
544 case R_V850_16_PCREL:
545 if ((saddend < -0xffff) || (saddend > 0))
546 return bfd_reloc_overflow;
548 if ((addend % 2) != 0)
549 return bfd_reloc_dangerous;
551 insn = bfd_get_16 (abfd, address);
553 insn |= (-addend & 0xfffe);
558 if (saddend > 0xff || saddend < -0x100)
559 return bfd_reloc_overflow;
561 if ((addend % 2) != 0)
562 return bfd_reloc_dangerous;
564 insn = bfd_get_16 (abfd, address);
566 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
571 addend += (bfd_get_16 (abfd, address) << 16);
572 addend = (addend >> 16);
578 /* Remember where this relocation took place. */
579 remember_hi16s_reloc (abfd, addend, address);
581 addend += (bfd_get_16 (abfd, address) << 16);
582 addend = (addend >> 16) + ((addend & 0x8000) != 0);
584 /* This relocation cannot overflow. */
593 insn = bfd_get_16 (abfd, address);
594 if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
595 return bfd_reloc_overflow;
600 addend += (char) bfd_get_8 (abfd, address);
602 saddend = (bfd_signed_vma) addend;
604 if (saddend > 0x7f || saddend < -0x80)
605 return bfd_reloc_overflow;
607 bfd_put_8 (abfd, addend, address);
610 case R_V850_CALLT_16_16_OFFSET:
611 addend += bfd_get_16 (abfd, address);
613 saddend = (bfd_signed_vma) addend;
615 if (saddend > 0xffff || saddend < 0)
616 return bfd_reloc_overflow;
621 case R_V850_CALLT_15_16_OFFSET:
622 insn = bfd_get_16 (abfd, address);
624 addend += insn & 0xfffe;
626 saddend = (bfd_signed_vma) addend;
628 if (saddend > 0xffff || saddend < 0)
629 return bfd_reloc_overflow;
631 insn = (0xfffe & addend)
635 case R_V850_CALLT_6_7_OFFSET:
636 insn = bfd_get_16 (abfd, address);
637 addend += ((insn & 0x3f) << 1);
639 saddend = (bfd_signed_vma) addend;
641 if (saddend > 0x7e || saddend < 0)
642 return bfd_reloc_overflow;
645 return bfd_reloc_dangerous;
648 insn |= (addend >> 1);
653 case R_V850_SDA_16_16_OFFSET:
654 case R_V850_ZDA_16_16_OFFSET:
655 case R_V850_TDA_16_16_OFFSET:
656 addend += bfd_get_16 (abfd, address);
658 saddend = (bfd_signed_vma) addend;
660 if (saddend > 0x7fff || saddend < -0x8000)
661 return bfd_reloc_overflow;
667 case R_V850_SDA_15_16_OFFSET:
668 case R_V850_ZDA_15_16_OFFSET:
670 insn = bfd_get_16 (abfd, address);
671 addend += (insn & 0xfffe);
673 saddend = (bfd_signed_vma) addend;
675 if (saddend > 0x7ffe || saddend < -0x8000)
676 return bfd_reloc_overflow;
679 return bfd_reloc_dangerous;
681 insn = (addend &~ (bfd_vma) 1) | (insn & 1);
684 case R_V850_TDA_6_8_OFFSET:
685 insn = bfd_get_16 (abfd, address);
686 addend += ((insn & 0x7e) << 1);
688 saddend = (bfd_signed_vma) addend;
690 if (saddend > 0xfc || saddend < 0)
691 return bfd_reloc_overflow;
694 return bfd_reloc_dangerous;
697 insn |= (addend >> 1);
700 case R_V850_TDA_7_8_OFFSET:
701 insn = bfd_get_16 (abfd, address);
702 addend += ((insn & 0x7f) << 1);
704 saddend = (bfd_signed_vma) addend;
706 if (saddend > 0xfe || saddend < 0)
707 return bfd_reloc_overflow;
710 return bfd_reloc_dangerous;
713 insn |= (addend >> 1);
716 case R_V850_TDA_7_7_OFFSET:
717 insn = bfd_get_16 (abfd, address);
718 addend += insn & 0x7f;
720 saddend = (bfd_signed_vma) addend;
722 if (saddend > 0x7f || saddend < 0)
723 return bfd_reloc_overflow;
729 case R_V850_TDA_4_5_OFFSET:
730 insn = bfd_get_16 (abfd, address);
731 addend += ((insn & 0xf) << 1);
733 saddend = (bfd_signed_vma) addend;
735 if (saddend > 0x1e || saddend < 0)
736 return bfd_reloc_overflow;
739 return bfd_reloc_dangerous;
742 insn |= (addend >> 1);
745 case R_V850_TDA_4_4_OFFSET:
746 insn = bfd_get_16 (abfd, address);
747 addend += insn & 0xf;
749 saddend = (bfd_signed_vma) addend;
751 if (saddend > 0xf || saddend < 0)
752 return bfd_reloc_overflow;
762 insn = bfd_get_16 (abfd, address);
763 result = insn & 0xfffe;
764 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
765 return bfd_reloc_overflow;
767 return bfd_reloc_overflow;
768 insn = (result & 0xfffe)
770 bfd_put_16 (abfd, insn, address);
774 case R_V850_LO16_SPLIT_OFFSET:
775 insn = bfd_get_32 (abfd, address);
776 result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5);
777 if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
778 return bfd_reloc_overflow;
779 insn = (((result << 16) & 0xfffe0000)
780 | ((result << 5) & 0x20)
781 | (insn & ~0xfffe0020));
782 bfd_put_32 (abfd, insn, address);
785 case R_V850_16_SPLIT_OFFSET:
786 case R_V850_SDA_16_16_SPLIT_OFFSET:
787 case R_V850_ZDA_16_16_SPLIT_OFFSET:
788 insn = bfd_get_32 (abfd, address);
789 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
791 saddend = (bfd_signed_vma) addend;
793 if (saddend > 0x7fff || saddend < -0x8000)
794 return bfd_reloc_overflow;
797 insn |= (addend & 1) << 5;
798 insn |= (addend &~ (bfd_vma) 1) << 16;
800 bfd_put_32 (abfd, (bfd_vma) insn, address);
803 case R_V850_GNU_VTINHERIT:
804 case R_V850_GNU_VTENTRY:
809 bfd_put_16 (abfd, (bfd_vma) insn, address);
813 /* Insert the addend into the instruction. */
815 static bfd_reloc_status_type
816 v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
819 void * data ATTRIBUTE_UNUSED,
822 char **err ATTRIBUTE_UNUSED)
826 /* If there is an output BFD,
827 and the symbol is not a section name (which is only defined at final link time),
828 and either we are not putting the addend into the instruction
829 or the addend is zero, so there is nothing to add into the instruction
830 then just fixup the address and return. */
832 && (symbol->flags & BSF_SECTION_SYM) == 0
833 && (! reloc->howto->partial_inplace
834 || reloc->addend == 0))
836 reloc->address += isection->output_offset;
840 /* Catch relocs involving undefined symbols. */
841 if (bfd_is_und_section (symbol->section)
842 && (symbol->flags & BSF_WEAK) == 0
844 return bfd_reloc_undefined;
846 /* We handle final linking of some relocs ourselves. */
848 /* Is the address of the relocation really within the section? */
849 if (reloc->address > bfd_get_section_limit (abfd, isection))
850 return bfd_reloc_outofrange;
852 /* Work out which section the relocation is targeted at and the
853 initial relocation command value. */
855 if (reloc->howto->pc_relative)
858 /* Get symbol value. (Common symbols are special.) */
859 if (bfd_is_com_section (symbol->section))
862 relocation = symbol->value;
864 /* Convert input-section-relative symbol value to absolute + addend. */
865 relocation += symbol->section->output_section->vma;
866 relocation += symbol->section->output_offset;
867 relocation += reloc->addend;
869 reloc->addend = relocation;
873 /* This function is used for relocs which are only used
874 for relaxing, which the linker should otherwise ignore. */
876 static bfd_reloc_status_type
877 v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
878 arelent *reloc_entry,
879 asymbol *symbol ATTRIBUTE_UNUSED,
880 void * data ATTRIBUTE_UNUSED,
881 asection *input_section,
883 char **error_message ATTRIBUTE_UNUSED)
885 if (output_bfd != NULL)
886 reloc_entry->address += input_section->output_offset;
890 /* Note: It is REQUIRED that the 'type' value of each entry
891 in this array match the index of the entry in the array.
892 SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
893 static reloc_howto_type v850_elf_howto_table[] =
895 /* This reloc does nothing. */
896 HOWTO (R_V850_NONE, /* Type. */
898 2, /* Size (0 = byte, 1 = short, 2 = long). */
900 FALSE, /* PC_relative. */
902 complain_overflow_bitfield, /* Complain_on_overflow. */
903 bfd_elf_generic_reloc, /* Special_function. */
904 "R_V850_NONE", /* Name. */
905 FALSE, /* Partial_inplace. */
908 FALSE), /* PCrel_offset. */
910 /* A PC relative 9 bit branch. */
911 HOWTO (R_V850_9_PCREL, /* Type. */
913 1, /* Size (0 = byte, 1 = short, 2 = long). */
915 TRUE, /* PC_relative. */
917 complain_overflow_bitfield, /* Complain_on_overflow. */
918 v850_elf_reloc, /* Special_function. */
919 "R_V850_9_PCREL", /* Name. */
920 FALSE, /* Partial_inplace. */
921 0x00ffffff, /* Src_mask. */
922 0x00ffffff, /* Dst_mask. */
923 TRUE), /* PCrel_offset. */
925 /* A PC relative 22 bit branch. */
926 HOWTO (R_V850_22_PCREL, /* Type. */
928 2, /* Size (0 = byte, 1 = short, 2 = long). */
930 TRUE, /* PC_relative. */
932 complain_overflow_signed, /* Complain_on_overflow. */
933 v850_elf_reloc, /* Special_function. */
934 "R_V850_22_PCREL", /* Name. */
935 FALSE, /* Partial_inplace. */
936 0x07ffff80, /* Src_mask. */
937 0x07ffff80, /* Dst_mask. */
938 TRUE), /* PCrel_offset. */
940 /* High 16 bits of symbol value. */
941 HOWTO (R_V850_HI16_S, /* Type. */
943 1, /* Size (0 = byte, 1 = short, 2 = long). */
945 FALSE, /* PC_relative. */
947 complain_overflow_dont, /* Complain_on_overflow. */
948 v850_elf_reloc, /* Special_function. */
949 "R_V850_HI16_S", /* Name. */
950 FALSE, /* Partial_inplace. */
951 0xffff, /* Src_mask. */
952 0xffff, /* Dst_mask. */
953 FALSE), /* PCrel_offset. */
955 /* High 16 bits of symbol value. */
956 HOWTO (R_V850_HI16, /* Type. */
958 1, /* Size (0 = byte, 1 = short, 2 = long). */
960 FALSE, /* PC_relative. */
962 complain_overflow_dont, /* Complain_on_overflow. */
963 v850_elf_reloc, /* Special_function. */
964 "R_V850_HI16", /* Name. */
965 FALSE, /* Partial_inplace. */
966 0xffff, /* Src_mask. */
967 0xffff, /* Dst_mask. */
968 FALSE), /* PCrel_offset. */
970 /* Low 16 bits of symbol value. */
971 HOWTO (R_V850_LO16, /* Type. */
973 1, /* Size (0 = byte, 1 = short, 2 = long). */
975 FALSE, /* PC_relative. */
977 complain_overflow_dont, /* Complain_on_overflow. */
978 v850_elf_reloc, /* Special_function. */
979 "R_V850_LO16", /* Name. */
980 FALSE, /* Partial_inplace. */
981 0xffff, /* Src_mask. */
982 0xffff, /* Dst_mask. */
983 FALSE), /* PCrel_offset. */
985 /* Simple 32bit reloc. */
986 HOWTO (R_V850_ABS32, /* Type. */
988 2, /* Size (0 = byte, 1 = short, 2 = long). */
990 FALSE, /* PC_relative. */
992 complain_overflow_dont, /* Complain_on_overflow. */
993 v850_elf_reloc, /* Special_function. */
994 "R_V850_ABS32", /* Name. */
995 FALSE, /* Partial_inplace. */
996 0xffffffff, /* Src_mask. */
997 0xffffffff, /* Dst_mask. */
998 FALSE), /* PCrel_offset. */
1000 /* Simple 16bit reloc. */
1001 HOWTO (R_V850_16, /* Type. */
1002 0, /* Rightshift. */
1003 1, /* Size (0 = byte, 1 = short, 2 = long). */
1005 FALSE, /* PC_relative. */
1007 complain_overflow_dont, /* Complain_on_overflow. */
1008 bfd_elf_generic_reloc, /* Special_function. */
1009 "R_V850_16", /* Name. */
1010 FALSE, /* Partial_inplace. */
1011 0xffff, /* Src_mask. */
1012 0xffff, /* Dst_mask. */
1013 FALSE), /* PCrel_offset. */
1015 /* Simple 8bit reloc. */
1016 HOWTO (R_V850_8, /* Type. */
1017 0, /* Rightshift. */
1018 0, /* Size (0 = byte, 1 = short, 2 = long). */
1020 FALSE, /* PC_relative. */
1022 complain_overflow_dont, /* Complain_on_overflow. */
1023 bfd_elf_generic_reloc, /* Special_function. */
1024 "R_V850_8", /* Name. */
1025 FALSE, /* Partial_inplace. */
1026 0xff, /* Src_mask. */
1027 0xff, /* Dst_mask. */
1028 FALSE), /* PCrel_offset. */
1030 /* 16 bit offset from the short data area pointer. */
1031 HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */
1032 0, /* Rightshift. */
1033 1, /* Size (0 = byte, 1 = short, 2 = long). */
1035 FALSE, /* PC_relative. */
1037 complain_overflow_dont, /* Complain_on_overflow. */
1038 v850_elf_reloc, /* Special_function. */
1039 "R_V850_SDA_16_16_OFFSET", /* Name. */
1040 FALSE, /* Partial_inplace. */
1041 0xffff, /* Src_mask. */
1042 0xffff, /* Dst_mask. */
1043 FALSE), /* PCrel_offset. */
1045 /* 15 bit offset from the short data area pointer. */
1046 HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */
1047 1, /* Rightshift. */
1048 1, /* Size (0 = byte, 1 = short, 2 = long). */
1050 FALSE, /* PC_relative. */
1052 complain_overflow_dont, /* Complain_on_overflow. */
1053 v850_elf_reloc, /* Special_function. */
1054 "R_V850_SDA_15_16_OFFSET", /* Name. */
1055 FALSE, /* Partial_inplace. */
1056 0xfffe, /* Src_mask. */
1057 0xfffe, /* Dst_mask. */
1058 FALSE), /* PCrel_offset. */
1060 /* 16 bit offset from the zero data area pointer. */
1061 HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */
1062 0, /* Rightshift. */
1063 1, /* Size (0 = byte, 1 = short, 2 = long). */
1065 FALSE, /* PC_relative. */
1067 complain_overflow_dont, /* Complain_on_overflow. */
1068 v850_elf_reloc, /* Special_function. */
1069 "R_V850_ZDA_16_16_OFFSET", /* Name. */
1070 FALSE, /* Partial_inplace. */
1071 0xffff, /* Src_mask. */
1072 0xffff, /* Dst_mask. */
1073 FALSE), /* PCrel_offset. */
1075 /* 15 bit offset from the zero data area pointer. */
1076 HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */
1077 1, /* Rightshift. */
1078 1, /* Size (0 = byte, 1 = short, 2 = long). */
1080 FALSE, /* PC_relative. */
1082 complain_overflow_dont, /* Complain_on_overflow. */
1083 v850_elf_reloc, /* Special_function. */
1084 "R_V850_ZDA_15_16_OFFSET", /* Name. */
1085 FALSE, /* Partial_inplace. */
1086 0xfffe, /* Src_mask. */
1087 0xfffe, /* Dst_mask. */
1088 FALSE), /* PCrel_offset. */
1090 /* 6 bit offset from the tiny data area pointer. */
1091 HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */
1092 2, /* Rightshift. */
1093 1, /* Size (0 = byte, 1 = short, 2 = long). */
1095 FALSE, /* PC_relative. */
1097 complain_overflow_dont, /* Complain_on_overflow. */
1098 v850_elf_reloc, /* Special_function. */
1099 "R_V850_TDA_6_8_OFFSET", /* Name. */
1100 FALSE, /* Partial_inplace. */
1101 0x7e, /* Src_mask. */
1102 0x7e, /* Dst_mask. */
1103 FALSE), /* PCrel_offset. */
1105 /* 8 bit offset from the tiny data area pointer. */
1106 HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */
1107 1, /* Rightshift. */
1108 1, /* Size (0 = byte, 1 = short, 2 = long). */
1110 FALSE, /* PC_relative. */
1112 complain_overflow_dont, /* Complain_on_overflow. */
1113 v850_elf_reloc, /* Special_function. */
1114 "R_V850_TDA_7_8_OFFSET", /* Name. */
1115 FALSE, /* Partial_inplace. */
1116 0x7f, /* Src_mask. */
1117 0x7f, /* Dst_mask. */
1118 FALSE), /* PCrel_offset. */
1120 /* 7 bit offset from the tiny data area pointer. */
1121 HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */
1122 0, /* Rightshift. */
1123 1, /* Size (0 = byte, 1 = short, 2 = long). */
1125 FALSE, /* PC_relative. */
1127 complain_overflow_dont, /* Complain_on_overflow. */
1128 v850_elf_reloc, /* Special_function. */
1129 "R_V850_TDA_7_7_OFFSET", /* Name. */
1130 FALSE, /* Partial_inplace. */
1131 0x7f, /* Src_mask. */
1132 0x7f, /* Dst_mask. */
1133 FALSE), /* PCrel_offset. */
1135 /* 16 bit offset from the tiny data area pointer! */
1136 HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */
1137 0, /* Rightshift. */
1138 1, /* Size (0 = byte, 1 = short, 2 = long). */
1140 FALSE, /* PC_relative. */
1142 complain_overflow_dont, /* Complain_on_overflow. */
1143 v850_elf_reloc, /* Special_function. */
1144 "R_V850_TDA_16_16_OFFSET", /* Name. */
1145 FALSE, /* Partial_inplace. */
1146 0xffff, /* Src_mask. */
1147 0xfff, /* Dst_mask. */
1148 FALSE), /* PCrel_offset. */
1150 /* 5 bit offset from the tiny data area pointer. */
1151 HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */
1152 1, /* Rightshift. */
1153 1, /* Size (0 = byte, 1 = short, 2 = long). */
1155 FALSE, /* PC_relative. */
1157 complain_overflow_dont, /* Complain_on_overflow. */
1158 v850_elf_reloc, /* Special_function. */
1159 "R_V850_TDA_4_5_OFFSET", /* Name. */
1160 FALSE, /* Partial_inplace. */
1161 0x0f, /* Src_mask. */
1162 0x0f, /* Dst_mask. */
1163 FALSE), /* PCrel_offset. */
1165 /* 4 bit offset from the tiny data area pointer. */
1166 HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */
1167 0, /* Rightshift. */
1168 1, /* Size (0 = byte, 1 = short, 2 = long). */
1170 FALSE, /* PC_relative. */
1172 complain_overflow_dont, /* Complain_on_overflow. */
1173 v850_elf_reloc, /* Special_function. */
1174 "R_V850_TDA_4_4_OFFSET", /* Name. */
1175 FALSE, /* Partial_inplace. */
1176 0x0f, /* Src_mask. */
1177 0x0f, /* Dst_mask. */
1178 FALSE), /* PCrel_offset. */
1180 /* 16 bit offset from the short data area pointer. */
1181 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */
1182 0, /* Rightshift. */
1183 2, /* Size (0 = byte, 1 = short, 2 = long). */
1185 FALSE, /* PC_relative. */
1187 complain_overflow_dont, /* Complain_on_overflow. */
1188 v850_elf_reloc, /* Special_function. */
1189 "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */
1190 FALSE, /* Partial_inplace. */
1191 0xfffe0020, /* Src_mask. */
1192 0xfffe0020, /* Dst_mask. */
1193 FALSE), /* PCrel_offset. */
1195 /* 16 bit offset from the zero data area pointer. */
1196 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */
1197 0, /* Rightshift. */
1198 2, /* Size (0 = byte, 1 = short, 2 = long). */
1200 FALSE, /* PC_relative. */
1202 complain_overflow_dont, /* Complain_on_overflow. */
1203 v850_elf_reloc, /* Special_function. */
1204 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */
1205 FALSE, /* Partial_inplace. */
1206 0xfffe0020, /* Src_mask. */
1207 0xfffe0020, /* Dst_mask. */
1208 FALSE), /* PCrel_offset. */
1210 /* 6 bit offset from the call table base pointer. */
1211 HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */
1212 0, /* Rightshift. */
1213 1, /* Size (0 = byte, 1 = short, 2 = long). */
1215 FALSE, /* PC_relative. */
1217 complain_overflow_dont, /* Complain_on_overflow. */
1218 v850_elf_reloc, /* Special_function. */
1219 "R_V850_CALLT_6_7_OFFSET", /* Name. */
1220 FALSE, /* Partial_inplace. */
1221 0x3f, /* Src_mask. */
1222 0x3f, /* Dst_mask. */
1223 FALSE), /* PCrel_offset. */
1225 /* 16 bit offset from the call table base pointer. */
1226 HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */
1227 0, /* Rightshift. */
1228 1, /* Size (0 = byte, 1 = short, 2 = long). */
1230 FALSE, /* PC_relative. */
1232 complain_overflow_dont, /* Complain_on_overflow. */
1233 v850_elf_reloc, /* Special_function. */
1234 "R_V850_CALLT_16_16_OFFSET", /* Name. */
1235 FALSE, /* Partial_inplace. */
1236 0xffff, /* Src_mask. */
1237 0xffff, /* Dst_mask. */
1238 FALSE), /* PCrel_offset. */
1241 /* GNU extension to record C++ vtable hierarchy */
1242 HOWTO (R_V850_GNU_VTINHERIT, /* Type. */
1243 0, /* Rightshift. */
1244 2, /* Size (0 = byte, 1 = short, 2 = long). */
1246 FALSE, /* PC_relative. */
1248 complain_overflow_dont, /* Complain_on_overflow. */
1249 NULL, /* Special_function. */
1250 "R_V850_GNU_VTINHERIT", /* Name. */
1251 FALSE, /* Partial_inplace. */
1254 FALSE), /* PCrel_offset. */
1256 /* GNU extension to record C++ vtable member usage. */
1257 HOWTO (R_V850_GNU_VTENTRY, /* Type. */
1258 0, /* Rightshift. */
1259 2, /* Size (0 = byte, 1 = short, 2 = long). */
1261 FALSE, /* PC_relative. */
1263 complain_overflow_dont, /* Complain_on_overflow. */
1264 _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
1265 "R_V850_GNU_VTENTRY", /* Name. */
1266 FALSE, /* Partial_inplace. */
1269 FALSE), /* PCrel_offset. */
1271 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
1272 pseudo-op when it finds a function call which can be relaxed. */
1273 HOWTO (R_V850_LONGCALL, /* Type. */
1274 0, /* Rightshift. */
1275 2, /* Size (0 = byte, 1 = short, 2 = long). */
1277 TRUE, /* PC_relative. */
1279 complain_overflow_signed, /* Complain_on_overflow. */
1280 v850_elf_ignore_reloc, /* Special_function. */
1281 "R_V850_LONGCALL", /* Name. */
1282 FALSE, /* Partial_inplace. */
1285 TRUE), /* PCrel_offset. */
1287 /* Indicates a .longjump pseudo-op. The compiler will generate a
1288 .longjump pseudo-op when it finds a branch which can be relaxed. */
1289 HOWTO (R_V850_LONGJUMP, /* Type. */
1290 0, /* Rightshift. */
1291 2, /* Size (0 = byte, 1 = short, 2 = long). */
1293 TRUE, /* PC_relative. */
1295 complain_overflow_signed, /* Complain_on_overflow. */
1296 v850_elf_ignore_reloc, /* Special_function. */
1297 "R_V850_LONGJUMP", /* Name. */
1298 FALSE, /* Partial_inplace. */
1301 TRUE), /* PCrel_offset. */
1303 HOWTO (R_V850_ALIGN, /* Type. */
1304 0, /* Rightshift. */
1305 1, /* Size (0 = byte, 1 = short, 2 = long). */
1307 FALSE, /* PC_relative. */
1309 complain_overflow_unsigned, /* Complain_on_overflow. */
1310 v850_elf_ignore_reloc, /* Special_function. */
1311 "R_V850_ALIGN", /* Name. */
1312 FALSE, /* Partial_inplace. */
1315 TRUE), /* PCrel_offset. */
1317 /* Simple pc-relative 32bit reloc. */
1318 HOWTO (R_V850_REL32, /* Type. */
1319 0, /* Rightshift. */
1320 2, /* Size (0 = byte, 1 = short, 2 = long). */
1322 TRUE, /* PC_relative. */
1324 complain_overflow_dont, /* Complain_on_overflow. */
1325 v850_elf_reloc, /* Special_function. */
1326 "R_V850_REL32", /* Name. */
1327 FALSE, /* Partial_inplace. */
1328 0xffffffff, /* Src_mask. */
1329 0xffffffff, /* Dst_mask. */
1330 FALSE), /* PCrel_offset. */
1332 /* An ld.bu version of R_V850_LO16. */
1333 HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */
1334 0, /* Rightshift. */
1335 2, /* Size (0 = byte, 1 = short, 2 = long). */
1337 FALSE, /* PC_relative. */
1339 complain_overflow_dont, /* Complain_on_overflow. */
1340 v850_elf_reloc, /* Special_function. */
1341 "R_V850_LO16_SPLIT_OFFSET", /* Name. */
1342 FALSE, /* Partial_inplace. */
1343 0xfffe0020, /* Src_mask. */
1344 0xfffe0020, /* Dst_mask. */
1345 FALSE), /* PCrel_offset. */
1347 /* A unsigned PC relative 16 bit loop. */
1348 HOWTO (R_V850_16_PCREL, /* Type. */
1349 0, /* Rightshift. */
1350 1, /* Size (0 = byte, 1 = short, 2 = long). */
1352 TRUE, /* PC_relative. */
1354 complain_overflow_bitfield, /* Complain_on_overflow. */
1355 v850_elf_reloc, /* Special_function. */
1356 "R_V850_16_PCREL", /* Name. */
1357 FALSE, /* Partial_inplace. */
1358 0xfffe, /* Src_mask. */
1359 0xfffe, /* Dst_mask. */
1360 TRUE), /* PCrel_offset. */
1362 /* A PC relative 17 bit branch. */
1363 HOWTO (R_V850_17_PCREL, /* Type. */
1364 0, /* Rightshift. */
1365 2, /* Size (0 = byte, 1 = short, 2 = long). */
1367 TRUE, /* PC_relative. */
1369 complain_overflow_bitfield, /* Complain_on_overflow. */
1370 v850_elf_reloc, /* Special_function. */
1371 "R_V850_17_PCREL", /* Name. */
1372 FALSE, /* Partial_inplace. */
1373 0x0010fffe, /* Src_mask. */
1374 0x0010fffe, /* Dst_mask. */
1375 TRUE), /* PCrel_offset. */
1377 /* A 23bit offset ld/st. */
1378 HOWTO (R_V850_23, /* type. */
1379 0, /* rightshift. */
1380 2, /* size (0 = byte, 1 = short, 2 = long). */
1382 FALSE, /* pc_relative. */
1384 complain_overflow_dont, /* complain_on_overflow. */
1385 v850_elf_reloc, /* special_function. */
1386 "R_V850_23", /* name. */
1387 FALSE, /* partial_inplace. */
1388 0xffff07f0, /* src_mask. */
1389 0xffff07f0, /* dst_mask. */
1390 FALSE), /* pcrel_offset. */
1392 /* A PC relative 32 bit branch. */
1393 HOWTO (R_V850_32_PCREL, /* type. */
1394 1, /* rightshift. */
1395 2, /* size (0 = byte, 1 = short, 2 = long). */
1397 TRUE, /* pc_relative. */
1399 complain_overflow_signed, /* complain_on_overflow. */
1400 v850_elf_reloc, /* special_function. */
1401 "R_V850_32_PCREL", /* name. */
1402 FALSE, /* partial_inplace. */
1403 0xfffffffe, /* src_mask. */
1404 0xfffffffe, /* dst_mask. */
1405 TRUE), /* pcrel_offset. */
1407 /* A absolute 32 bit branch. */
1408 HOWTO (R_V850_32_ABS, /* type. */
1409 1, /* rightshift. */
1410 2, /* size (0 = byte, 1 = short, 2 = long). */
1412 TRUE, /* pc_relative. */
1414 complain_overflow_signed, /* complain_on_overflow. */
1415 v850_elf_reloc, /* special_function. */
1416 "R_V850_32_ABS", /* name. */
1417 FALSE, /* partial_inplace. */
1418 0xfffffffe, /* src_mask. */
1419 0xfffffffe, /* dst_mask. */
1420 FALSE), /* pcrel_offset. */
1422 /* High 16 bits of symbol value. */
1423 HOWTO (R_V850_HI16, /* Type. */
1424 0, /* Rightshift. */
1425 1, /* Size (0 = byte, 1 = short, 2 = long). */
1427 FALSE, /* PC_relative. */
1429 complain_overflow_dont, /* Complain_on_overflow. */
1430 v850_elf_reloc, /* Special_function. */
1431 "R_V850_HI16", /* Name. */
1432 FALSE, /* Partial_inplace. */
1433 0xffff, /* Src_mask. */
1434 0xffff, /* Dst_mask. */
1435 FALSE), /* PCrel_offset. */
1437 /* Low 16 bits of symbol value. */
1438 HOWTO (R_V850_16_S1, /* type. */
1439 1, /* rightshift. */
1440 1, /* size (0 = byte, 1 = short, 2 = long). */
1442 FALSE, /* pc_relative. */
1444 complain_overflow_dont, /* complain_on_overflow. */
1445 v850_elf_reloc, /* special_function. */
1446 "R_V850_16_S1", /* name. */
1447 FALSE, /* partial_inplace. */
1448 0xfffe, /* src_mask. */
1449 0xfffe, /* dst_mask. */
1450 FALSE), /* pcrel_offset. */
1452 /* Low 16 bits of symbol value. */
1453 HOWTO (R_V850_LO16_S1, /* type. */
1454 1, /* rightshift. */
1455 1, /* size (0 = byte, 1 = short, 2 = long). */
1457 FALSE, /* pc_relative. */
1459 complain_overflow_dont, /* complain_on_overflow. */
1460 v850_elf_reloc, /* special_function. */
1461 "R_V850_LO16_S1", /* name. */
1462 FALSE, /* partial_inplace. */
1463 0xfffe, /* src_mask. */
1464 0xfffe, /* dst_mask. */
1465 FALSE), /* pcrel_offset. */
1467 /* 16 bit offset from the call table base pointer. */
1468 HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */
1469 1, /* rightshift. */
1470 1, /* size (0 = byte, 1 = short, 2 = long). */
1472 FALSE, /* pc_relative. */
1474 complain_overflow_dont, /* complain_on_overflow. */
1475 v850_elf_reloc, /* special_function. */
1476 "R_V850_CALLT_15_16_OFFSET", /* name. */
1477 FALSE, /* partial_inplace. */
1478 0xfffe, /* src_mask. */
1479 0xfffe, /* dst_mask. */
1480 FALSE), /* pcrel_offset. */
1482 /* Like R_V850_32 PCREL, but referring to the GOT table entry for
1484 HOWTO (R_V850_32_GOTPCREL, /* type. */
1485 0, /* rightshift. */
1486 2, /* size (0 = byte, 1 = short, 2 = long). */
1488 TRUE, /* pc_relative. */
1490 complain_overflow_unsigned, /* complain_on_overflow. */
1491 v850_elf_reloc, /* special_function. */
1492 "R_V850_32_GOTPCREL", /* name. */
1493 FALSE, /* partial_inplace. */
1494 0xffffffff, /* src_mask. */
1495 0xffffffff, /* dst_mask. */
1496 TRUE), /* pcrel_offset. */
1498 /* Like R_V850_SDA_, but referring to the GOT table entry for
1500 HOWTO (R_V850_16_GOT, /* type. */
1501 0, /* rightshift. */
1502 2, /* size (0 = byte, 1 = short, 2 = long). */
1504 FALSE, /* pc_relative. */
1506 complain_overflow_unsigned, /* complain_on_overflow. */
1507 bfd_elf_generic_reloc, /* special_function. */
1508 "R_V850_16_GOT", /* name. */
1509 FALSE, /* partial_inplace. */
1510 0xffff, /* src_mask. */
1511 0xffff, /* dst_mask. */
1512 FALSE), /* pcrel_offset. */
1514 HOWTO (R_V850_32_GOT, /* type. */
1515 0, /* rightshift. */
1516 2, /* size (0 = byte, 1 = short, 2 = long). */
1518 FALSE, /* pc_relative. */
1520 complain_overflow_unsigned, /* complain_on_overflow. */
1521 bfd_elf_generic_reloc, /* special_function. */
1522 "R_V850_32_GOT", /* name. */
1523 FALSE, /* partial_inplace. */
1524 0xffffffff, /* src_mask. */
1525 0xffffffff, /* dst_mask. */
1526 FALSE), /* pcrel_offset. */
1528 /* Like R_V850_22_PCREL, but referring to the procedure linkage table
1529 entry for the symbol. */
1530 HOWTO (R_V850_22_PLT, /* type. */
1531 1, /* rightshift. */
1532 2, /* size (0 = byte, 1 = short, 2 = long). */
1534 TRUE, /* pc_relative. */
1536 complain_overflow_signed, /* complain_on_overflow. */
1537 bfd_elf_generic_reloc, /* special_function. */
1538 "R_V850_22_PLT", /* name. */
1539 FALSE, /* partial_inplace. */
1540 0x07ffff80, /* src_mask. */
1541 0x07ffff80, /* dst_mask. */
1542 TRUE), /* pcrel_offset. */
1544 HOWTO (R_V850_32_PLT, /* type. */
1545 1, /* rightshift. */
1546 2, /* size (0 = byte, 1 = short, 2 = long). */
1548 TRUE, /* pc_relative. */
1550 complain_overflow_signed, /* complain_on_overflow. */
1551 bfd_elf_generic_reloc, /* special_function. */
1552 "R_V850_32_PLT", /* name. */
1553 FALSE, /* partial_inplace. */
1554 0xffffffff, /* src_mask. */
1555 0xffffffff, /* dst_mask. */
1556 TRUE), /* pcrel_offset. */
1558 /* This is used only by the dynamic linker. The symbol should exist
1559 both in the object being run and in some shared library. The
1560 dynamic linker copies the data addressed by the symbol from the
1561 shared library into the object, because the object being
1562 run has to have the data at some particular address. */
1563 HOWTO (R_V850_COPY, /* type. */
1564 0, /* rightshift. */
1565 2, /* size (0 = byte, 1 = short, 2 = long). */
1567 FALSE, /* pc_relative. */
1569 complain_overflow_bitfield, /* complain_on_overflow. */
1570 bfd_elf_generic_reloc, /* special_function. */
1571 "R_V850_COPY", /* name. */
1572 FALSE, /* partial_inplace. */
1573 0xffffffff, /* src_mask. */
1574 0xffffffff, /* dst_mask. */
1575 FALSE), /* pcrel_offset. */
1577 /* Like R_M32R_24, but used when setting global offset table
1579 HOWTO (R_V850_GLOB_DAT, /* type. */
1580 0, /* rightshift. */
1581 2, /* size (0 = byte, 1 = short, 2 = long) */
1583 FALSE, /* pc_relative. */
1585 complain_overflow_bitfield, /* complain_on_overflow. */
1586 bfd_elf_generic_reloc, /* special_function. */
1587 "R_V850_GLOB_DAT", /* name. */
1588 FALSE, /* partial_inplace. */
1589 0xffffffff, /* src_mask. */
1590 0xffffffff, /* dst_mask. */
1591 FALSE), /* pcrel_offset. */
1593 /* Marks a procedure linkage table entry for a symbol. */
1594 HOWTO (R_V850_JMP_SLOT, /* type. */
1595 0, /* rightshift. */
1596 2, /* size (0 = byte, 1 = short, 2 = long) */
1598 FALSE, /* pc_relative. */
1600 complain_overflow_bitfield, /* complain_on_overflow. */
1601 bfd_elf_generic_reloc, /* special_function. */
1602 "R_V850_JMP_SLOT", /* name. */
1603 FALSE, /* partial_inplace. */
1604 0xffffffff, /* src_mask. */
1605 0xffffffff, /* dst_mask. */
1606 FALSE), /* pcrel_offset. */
1608 /* Used only by the dynamic linker. When the object is run, this
1609 longword is set to the load address of the object, plus the
1611 HOWTO (R_V850_RELATIVE, /* type. */
1612 0, /* rightshift. */
1613 2, /* size (0 = byte, 1 = short, 2 = long) */
1615 FALSE, /* pc_relative. */
1617 complain_overflow_bitfield, /* complain_on_overflow. */
1618 bfd_elf_generic_reloc, /* special_function. */
1619 "R_V850_RELATIVE", /* name. */
1620 FALSE, /* partial_inplace. */
1621 0xffffffff, /* src_mask. */
1622 0xffffffff, /* dst_mask. */
1623 FALSE), /* pcrel_offset. */
1625 HOWTO (R_V850_16_GOTOFF, /* type. */
1626 0, /* rightshift. */
1627 2, /* size (0 = byte, 1 = short, 2 = long) */
1629 FALSE, /* pc_relative. */
1631 complain_overflow_bitfield, /* complain_on_overflow. */
1632 bfd_elf_generic_reloc, /* special_function. */
1633 "R_V850_16_GOTOFF", /* name. */
1634 FALSE, /* partial_inplace. */
1635 0xffff, /* src_mask. */
1636 0xffff, /* dst_mask. */
1637 FALSE), /* pcrel_offset. */
1639 HOWTO (R_V850_32_GOTOFF, /* type. */
1640 0, /* rightshift. */
1641 2, /* size (0 = byte, 1 = short, 2 = long) */
1643 FALSE, /* pc_relative. */
1645 complain_overflow_bitfield, /* complain_on_overflow. */
1646 bfd_elf_generic_reloc, /* special_function. */
1647 "R_V850_32_GOTOFF", /* name. */
1648 FALSE, /* partial_inplace. */
1649 0xffffffff, /* src_mask. */
1650 0xffffffff, /* dst_mask. */
1651 FALSE), /* pcrel_offset. */
1653 HOWTO (R_V850_CODE, /* type. */
1654 0, /* rightshift. */
1655 1, /* size (0 = byte, 1 = short, 2 = long) */
1657 FALSE, /* pc_relative. */
1659 complain_overflow_unsigned, /* complain_on_overflow. */
1660 v850_elf_ignore_reloc, /* special_function. */
1661 "R_V850_CODE", /* name. */
1662 FALSE, /* partial_inplace. */
1665 TRUE), /* pcrel_offset. */
1667 HOWTO (R_V850_DATA, /* type. */
1668 0, /* rightshift. */
1669 1, /* size (0 = byte, 1 = short, 2 = long) */
1671 FALSE, /* pc_relative. */
1673 complain_overflow_unsigned, /* complain_on_overflow. */
1674 v850_elf_ignore_reloc, /* special_function. */
1675 "R_V850_DATA", /* name. */
1676 FALSE, /* partial_inplace. */
1679 TRUE), /* pcrel_offset. */
1683 /* Map BFD reloc types to V850 ELF reloc types. */
1685 struct v850_elf_reloc_map
1687 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
1689 bfd_reloc_code_real_type bfd_reloc_val;
1690 unsigned int elf_reloc_val;
1693 static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
1695 { BFD_RELOC_NONE, R_V850_NONE },
1696 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
1697 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
1698 { BFD_RELOC_HI16_S, R_V850_HI16_S },
1699 { BFD_RELOC_HI16, R_V850_HI16 },
1700 { BFD_RELOC_LO16, R_V850_LO16 },
1701 { BFD_RELOC_32, R_V850_ABS32 },
1702 { BFD_RELOC_32_PCREL, R_V850_REL32 },
1703 { BFD_RELOC_16, R_V850_16 },
1704 { BFD_RELOC_8, R_V850_8 },
1705 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
1706 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
1707 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
1708 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
1709 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
1710 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
1711 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
1712 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
1713 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
1714 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
1715 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET },
1716 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
1717 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
1718 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
1719 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
1720 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
1721 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
1722 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
1723 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
1724 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
1725 { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL },
1726 { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL },
1727 { BFD_RELOC_V850_23, R_V850_23 },
1728 { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL },
1729 { BFD_RELOC_V850_32_ABS, R_V850_32_ABS },
1730 { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 },
1731 { BFD_RELOC_V850_16_S1, R_V850_16_S1 },
1732 { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 },
1733 { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET },
1734 { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL },
1735 { BFD_RELOC_V850_16_GOT, R_V850_16_GOT },
1736 { BFD_RELOC_V850_32_GOT, R_V850_32_GOT },
1737 { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT },
1738 { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT },
1739 { BFD_RELOC_V850_COPY, R_V850_COPY },
1740 { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT },
1741 { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT },
1742 { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE },
1743 { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF },
1744 { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF },
1745 { BFD_RELOC_V850_CODE, R_V850_CODE },
1746 { BFD_RELOC_V850_DATA, R_V850_DATA },
1749 #define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \
1750 HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
1751 bfd_elf_ ## resolver ## _reloc, #name, FALSE, 0, ~0, FALSE)
1753 #define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE)
1755 #define bfd_elf_v850_reloc v850_elf_reloc
1757 /* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry
1758 in this array match the index of the entry in the array minus 0x30.
1759 See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup()
1760 and v800_elf_info_to_howto(). */
1762 static reloc_howto_type v800_elf_howto_table[] =
1764 V800_RELOC (R_V810_NONE, 0, 0, 0, dont, FALSE, generic), /* Type = 0x30 */
1765 V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, FALSE, generic),
1766 V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, FALSE, generic),
1767 V800_RELOC (R_V810_WORD, 2, 32, 0, dont, FALSE, generic),
1768 V800_RELOC (R_V810_WLO, 1, 16, 0, dont, FALSE, generic),
1769 V800_RELOC (R_V810_WHI, 1, 16, 0, dont, FALSE, generic),
1770 V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, FALSE, generic),
1771 V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, FALSE, v850),
1772 V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, FALSE, v850),
1773 V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, FALSE, v850),
1774 V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, FALSE, v850),
1775 V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, FALSE, v850),
1776 V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, FALSE, v850),
1777 V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, FALSE, generic),
1778 V800_EMPTY (R_V810_reserved1),
1779 V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, FALSE, v850),
1780 V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, FALSE, v850),
1781 V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, FALSE, v850),
1782 V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, FALSE, v850),
1783 V800_EMPTY (R_V810_reserved2),
1784 V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, FALSE, v850),
1785 V800_EMPTY (R_V810_reserved3),
1786 V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, TRUE, generic),
1787 V800_RELOC (R_V850_BLO, 2, 24, 0, dont, FALSE, v850),
1788 V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, FALSE, v850),
1789 V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, FALSE, v850),
1790 V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, FALSE, v850),
1791 V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, FALSE, v850),
1792 V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, FALSE, v850),
1793 V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, FALSE, v850),
1794 V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, FALSE, v850),
1795 V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, FALSE, v850),
1796 V800_EMPTY (R_V810_reserved4),
1797 V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, FALSE, v850),
1798 V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, FALSE, v850),
1799 V800_EMPTY (R_V810_reserved5),
1800 V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, FALSE, v850),
1801 V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, FALSE, v850),
1802 V800_EMPTY (R_V810_reserved6),
1803 V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, FALSE, v850),
1804 V800_RELOC (R_V850_PC32, 2, 32, 1, signed, TRUE, v850),
1805 V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, FALSE, v850),
1806 V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, FALSE, v850),
1807 V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, FALSE, v850),
1808 V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, FALSE, v850),
1809 V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, FALSE, v850),
1810 V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, FALSE, v850),
1811 V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, TRUE, generic),
1812 V800_RELOC (R_V850_PC17, 2, 17, 1, signed, TRUE, generic),
1813 V800_RELOC (R_V850_DW8, 2, 8, 2, signed, FALSE, v850),
1814 V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, FALSE, v850),
1815 V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, FALSE, v850),
1816 V800_RELOC (R_V850_PC9, 1, 9, 3, signed, TRUE, v850),
1817 V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, FALSE, v850),
1818 V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, FALSE, v850),
1819 V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, FALSE, v850),
1820 V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, FALSE, v850),
1821 V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, FALSE, v850),
1822 V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, FALSE, v850),
1823 V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, FALSE, v850),
1824 V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, FALSE, v850),
1825 V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, FALSE, v850),
1826 V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, FALSE, v850),
1827 V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, FALSE, v850),
1828 V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, FALSE, v850),
1829 V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, FALSE, v850),
1830 V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, FALSE, v850),
1831 V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, FALSE, v850),
1832 V800_RELOC (R_V850_WORD, 2, 32, 0, dont, FALSE, v850),
1833 V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, FALSE, v850),
1834 V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, FALSE, v850),
1835 V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, FALSE, v850),
1836 V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, FALSE, v850),
1837 V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, FALSE, v850),
1838 V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, FALSE, v850),
1839 V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, FALSE, v850),
1840 V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, FALSE, v850),
1841 V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, FALSE, v850),
1842 V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, FALSE, v850),
1843 V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, FALSE, v850),
1844 V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, FALSE, v850),
1845 V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, FALSE, v850),
1846 V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, FALSE, v850),
1847 V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, FALSE, v850),
1848 V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, FALSE, v850),
1849 V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, FALSE, v850)
1852 /* Map a bfd relocation into the appropriate howto structure. */
1854 static reloc_howto_type *
1855 v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1856 bfd_reloc_code_real_type code)
1860 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
1861 if (v850_elf_reloc_map[i].bfd_reloc_val == code)
1863 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
1865 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
1867 return v850_elf_howto_table + elf_reloc_val;
1873 static reloc_howto_type *
1874 v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1880 i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
1882 if (v850_elf_howto_table[i].name != NULL
1883 && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
1884 return &v850_elf_howto_table[i];
1889 /* Set the howto pointer for an V850 ELF reloc. */
1892 v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1894 Elf_Internal_Rela *dst)
1896 unsigned int r_type;
1898 r_type = ELF32_R_TYPE (dst->r_info);
1899 BFD_ASSERT (r_type < (unsigned int) R_V850_max);
1900 cache_ptr->howto = &v850_elf_howto_table[r_type];
1903 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
1906 v850_elf_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
1907 arelent * cache_ptr,
1908 Elf_Internal_Rela *dst)
1910 unsigned int r_type;
1912 r_type = ELF32_R_TYPE (dst->r_info);
1913 BFD_ASSERT (r_type < (unsigned int) R_V850_max);
1914 cache_ptr->howto = &v850_elf_howto_table[r_type];
1918 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
1920 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1921 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1924 /* We overload some of the bfd_reloc error codes for own purposes. */
1925 #define bfd_reloc_gp_not_found bfd_reloc_other
1926 #define bfd_reloc_ep_not_found bfd_reloc_continue
1927 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1929 /* Perform a relocation as part of a final link. */
1931 static bfd_reloc_status_type
1932 v850_elf_final_link_relocate (reloc_howto_type *howto,
1934 bfd *output_bfd ATTRIBUTE_UNUSED,
1935 asection *input_section,
1940 struct bfd_link_info *info,
1942 int is_local ATTRIBUTE_UNUSED)
1944 unsigned int r_type = howto->type;
1945 bfd_byte *hit_data = contents + offset;
1947 /* Adjust the value according to the relocation. */
1951 case R_V850_9_PCREL:
1952 value -= (input_section->output_section->vma
1953 + input_section->output_offset);
1958 case R_V850_16_PCREL:
1959 value -= (input_section->output_section->vma
1960 + input_section->output_offset
1963 /* If the sign extension will corrupt the value then we have overflowed. */
1964 if ((value & 0xffff0000) != 0xffff0000)
1965 return bfd_reloc_overflow;
1970 case R_V850_17_PCREL:
1971 value -= (input_section->output_section->vma
1972 + input_section->output_offset
1975 /* If the sign extension will corrupt the value then we have overflowed. */
1976 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1977 return bfd_reloc_overflow;
1979 value = SEXT17 (value);
1983 case R_V850_22_PCREL:
1984 value -= (input_section->output_section->vma
1985 + input_section->output_offset
1988 /* If the sign extension will corrupt the value then we have overflowed. */
1989 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
1990 return bfd_reloc_overflow;
1992 /* Only the bottom 22 bits of the PC are valid. */
1993 value = SEXT22 (value);
1997 case R_V850_32_PCREL:
1998 value -= (input_section->output_section->vma
1999 + input_section->output_offset
2008 case R_V850_LO16_S1:
2009 case R_V850_LO16_SPLIT_OFFSET:
2024 case R_V850_ZDA_15_16_OFFSET:
2025 case R_V850_ZDA_16_16_OFFSET:
2026 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2027 if (sym_sec == NULL)
2028 return bfd_reloc_undefined;
2030 value -= sym_sec->output_section->vma;
2033 case R_V850_SDA_15_16_OFFSET:
2034 case R_V850_SDA_16_16_OFFSET:
2035 case R_V850_SDA_16_16_SPLIT_OFFSET:
2036 case R_V810_GPWLO_1:
2039 struct bfd_link_hash_entry * h;
2041 if (sym_sec == NULL)
2042 return bfd_reloc_undefined;
2044 /* Get the value of __gp. */
2045 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2047 || h->type != bfd_link_hash_defined)
2048 return bfd_reloc_gp_not_found;
2050 gp = (h->u.def.value
2051 + h->u.def.section->output_section->vma
2052 + h->u.def.section->output_offset);
2054 value -= sym_sec->output_section->vma;
2055 value -= (gp - sym_sec->output_section->vma);
2059 case R_V850_TDA_4_4_OFFSET:
2060 case R_V850_TDA_4_5_OFFSET:
2061 case R_V850_TDA_7_7_OFFSET:
2062 case R_V850_TDA_7_8_OFFSET:
2063 case R_V850_TDA_6_8_OFFSET:
2064 case R_V850_TDA_16_16_OFFSET:
2067 struct bfd_link_hash_entry * h;
2069 /* Get the value of __ep. */
2070 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2072 || h->type != bfd_link_hash_defined)
2073 return bfd_reloc_ep_not_found;
2075 ep = (h->u.def.value
2076 + h->u.def.section->output_section->vma
2077 + h->u.def.section->output_offset);
2083 case R_V850_CALLT_6_7_OFFSET:
2086 struct bfd_link_hash_entry * h;
2088 /* Get the value of __ctbp. */
2089 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2091 || h->type != bfd_link_hash_defined)
2092 return bfd_reloc_ctbp_not_found;
2094 ctbp = (h->u.def.value
2095 + h->u.def.section->output_section->vma
2096 + h->u.def.section->output_offset);
2101 case R_V850_CALLT_15_16_OFFSET:
2102 case R_V850_CALLT_16_16_OFFSET:
2105 struct bfd_link_hash_entry * h;
2107 if (sym_sec == NULL)
2108 return bfd_reloc_undefined;
2110 /* Get the value of __ctbp. */
2111 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2113 || h->type != bfd_link_hash_defined)
2114 return bfd_reloc_ctbp_not_found;
2116 ctbp = (h->u.def.value
2117 + h->u.def.section->output_section->vma
2118 + h->u.def.section->output_offset);
2120 value -= sym_sec->output_section->vma;
2121 value -= (ctbp - sym_sec->output_section->vma);
2127 case R_V850_GNU_VTINHERIT:
2128 case R_V850_GNU_VTENTRY:
2129 case R_V850_LONGCALL:
2130 case R_V850_LONGJUMP:
2132 return bfd_reloc_ok;
2136 fprintf (stderr, "reloc number %d not recognised\n", r_type);
2138 return bfd_reloc_notsupported;
2141 /* Perform the relocation. */
2142 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2145 /* Relocate an V850 ELF section. */
2148 v850_elf_relocate_section (bfd *output_bfd,
2149 struct bfd_link_info *info,
2151 asection *input_section,
2153 Elf_Internal_Rela *relocs,
2154 Elf_Internal_Sym *local_syms,
2155 asection **local_sections)
2157 Elf_Internal_Shdr *symtab_hdr;
2158 struct elf_link_hash_entry **sym_hashes;
2159 Elf_Internal_Rela *rel;
2160 Elf_Internal_Rela *relend;
2162 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2163 sym_hashes = elf_sym_hashes (input_bfd);
2165 /* Reset the list of remembered HI16S relocs to empty. */
2166 free_hi16s = previous_hi16s;
2167 previous_hi16s = NULL;
2171 relend = relocs + input_section->reloc_count;
2172 for (; rel < relend; rel++)
2174 unsigned int r_type;
2175 reloc_howto_type *howto;
2176 unsigned long r_symndx;
2177 Elf_Internal_Sym *sym;
2179 struct elf_link_hash_entry *h;
2181 bfd_reloc_status_type r;
2183 r_symndx = ELF32_R_SYM (rel->r_info);
2184 r_type = ELF32_R_TYPE (rel->r_info);
2186 if (r_type == R_V850_GNU_VTENTRY
2187 || r_type == R_V850_GNU_VTINHERIT)
2190 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2191 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2193 howto = v850_elf_howto_table + r_type;
2195 BFD_ASSERT (r_type == howto->type);
2200 if (r_symndx < symtab_hdr->sh_info)
2202 sym = local_syms + r_symndx;
2203 sec = local_sections[r_symndx];
2204 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2208 bfd_boolean unresolved_reloc, warned;
2210 /* Note - this check is delayed until now as it is possible and
2211 valid to have a file without any symbols but with relocs that
2212 can be processed. */
2213 if (sym_hashes == NULL)
2215 info->callbacks->warning
2216 (info, "no hash table available",
2217 NULL, input_bfd, input_section, (bfd_vma) 0);
2222 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2223 r_symndx, symtab_hdr, sym_hashes,
2225 unresolved_reloc, warned);
2228 if (sec != NULL && discarded_section (sec))
2229 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2230 rel, 1, relend, howto, 0, contents);
2232 if (info->relocatable)
2235 /* FIXME: We should use the addend, but the COFF relocations don't. */
2236 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2238 contents, rel->r_offset,
2239 relocation, rel->r_addend,
2240 info, sec, h == NULL);
2242 if (r != bfd_reloc_ok)
2245 const char * msg = NULL;
2248 name = h->root.root.string;
2251 name = (bfd_elf_string_from_elf_section
2252 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2253 if (name == NULL || *name == '\0')
2254 name = bfd_section_name (input_bfd, sec);
2259 case bfd_reloc_overflow:
2260 if (! ((*info->callbacks->reloc_overflow)
2261 (info, (h ? &h->root : NULL), name, howto->name,
2262 (bfd_vma) 0, input_bfd, input_section,
2267 case bfd_reloc_undefined:
2268 if (! ((*info->callbacks->undefined_symbol)
2269 (info, name, input_bfd, input_section,
2270 rel->r_offset, TRUE)))
2274 case bfd_reloc_outofrange:
2275 msg = _("internal error: out of range error");
2278 case bfd_reloc_notsupported:
2279 msg = _("internal error: unsupported relocation error");
2282 case bfd_reloc_dangerous:
2283 msg = _("internal error: dangerous relocation");
2286 case bfd_reloc_gp_not_found:
2287 msg = _("could not locate special linker symbol __gp");
2290 case bfd_reloc_ep_not_found:
2291 msg = _("could not locate special linker symbol __ep");
2294 case bfd_reloc_ctbp_not_found:
2295 msg = _("could not locate special linker symbol __ctbp");
2299 msg = _("internal error: unknown error");
2303 if (!((*info->callbacks->warning)
2304 (info, msg, name, input_bfd, input_section,
2316 v850_elf_gc_mark_hook (asection *sec,
2317 struct bfd_link_info *info,
2318 Elf_Internal_Rela *rel,
2319 struct elf_link_hash_entry *h,
2320 Elf_Internal_Sym *sym)
2323 switch (ELF32_R_TYPE (rel->r_info))
2325 case R_V850_GNU_VTINHERIT:
2326 case R_V850_GNU_VTENTRY:
2330 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2333 /* Set the right machine number and architecture. */
2336 v850_elf_object_p (bfd *abfd)
2338 enum bfd_architecture arch;
2341 switch (elf_elfheader (abfd)->e_machine)
2344 arch = bfd_arch_v850_rh850;
2345 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2346 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2349 case EM_CYGNUS_V850:
2351 arch = bfd_arch_v850;
2352 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2355 case E_V850_ARCH: mach = bfd_mach_v850; break;
2356 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2357 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2358 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2359 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2360 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2368 return bfd_default_set_arch_mach (abfd, arch, mach);
2371 /* Store the machine number in the flags field. */
2374 v850_elf_final_write_processing (bfd *abfd,
2375 bfd_boolean linker ATTRIBUTE_UNUSED)
2379 switch (bfd_get_arch (abfd))
2381 case bfd_arch_v850_rh850:
2383 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2384 val |= EF_V800_850E3;
2385 elf_elfheader (abfd)->e_flags |= val;
2389 switch (bfd_get_mach (abfd))
2392 case bfd_mach_v850: val = E_V850_ARCH; break;
2393 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2394 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2395 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2396 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2397 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2399 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2400 elf_elfheader (abfd)->e_flags |= val;
2407 /* Function to keep V850 specific file flags. */
2410 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2412 BFD_ASSERT (!elf_flags_init (abfd)
2413 || elf_elfheader (abfd)->e_flags == flags);
2415 elf_elfheader (abfd)->e_flags = flags;
2416 elf_flags_init (abfd) = TRUE;
2420 /* Merge backend specific data from an object file
2421 to the output object file when linking. */
2424 v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2429 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2430 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2433 in_flags = elf_elfheader (ibfd)->e_flags;
2434 out_flags = elf_elfheader (obfd)->e_flags;
2436 if (! elf_flags_init (obfd))
2438 /* If the input is the default architecture then do not
2439 bother setting the flags for the output architecture,
2440 instead allow future merges to do this. If no future
2441 merges ever set these flags then they will retain their
2442 unitialised values, which surprise surprise, correspond
2443 to the default values. */
2444 if (bfd_get_arch_info (ibfd)->the_default)
2447 elf_flags_init (obfd) = TRUE;
2448 elf_elfheader (obfd)->e_flags = in_flags;
2450 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2451 && bfd_get_arch_info (obfd)->the_default)
2452 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2457 /* Check flag compatibility. */
2458 if (in_flags == out_flags)
2461 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2463 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2465 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2467 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2470 if ((in_flags & EF_RH850_DATA_ALIGN8) != (out_flags & EF_RH850_DATA_ALIGN8))
2472 _bfd_error_handler (_("%B: Alignment mismatch with previous modules"),
2474 elf_elfheader (obfd)->e_flags |= EF_RH850_DATA_ALIGN8;
2480 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2481 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2483 /* Allow earlier architecture binaries to be linked with later binaries.
2484 Set the output binary to the later architecture, except for v850e1,
2485 which we set to v850e. */
2486 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2487 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2490 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2491 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2493 elf_elfheader (obfd)->e_flags =
2494 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2498 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2499 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2500 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2502 elf_elfheader (obfd)->e_flags =
2503 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2507 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2508 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2509 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2510 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2512 elf_elfheader (obfd)->e_flags =
2513 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2517 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2518 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2519 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2520 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2521 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2523 elf_elfheader (obfd)->e_flags =
2524 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2528 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2535 /* Display the flags field. */
2538 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2540 FILE * file = (FILE *) ptr;
2542 BFD_ASSERT (abfd != NULL && ptr != NULL);
2544 _bfd_elf_print_private_bfd_data (abfd, ptr);
2546 /* xgettext:c-format. */
2547 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2549 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2551 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2552 fprintf (file, _("unknown v850 architecture"));
2553 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2554 fprintf (file, _("v850 E3 architecture"));
2556 fprintf (file, _("v850 architecture"));
2558 if (elf_elfheader (abfd)->e_flags & EF_RH850_DATA_ALIGN8)
2559 fprintf (file, _(", 8-byte data alignment"));
2563 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2566 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2567 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2568 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2569 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2570 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2571 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2580 /* V850 ELF uses four common sections. One is the usual one, and the
2581 others are for (small) objects in one of the special data areas:
2582 small, tiny and zero. All the objects are kept together, and then
2583 referenced via the gp register, the ep register or the r0 register
2584 respectively, which yields smaller, faster assembler code. This
2585 approach is copied from elf32-mips.c. */
2587 static asection v850_elf_scom_section;
2588 static asymbol v850_elf_scom_symbol;
2589 static asymbol * v850_elf_scom_symbol_ptr;
2590 static asection v850_elf_tcom_section;
2591 static asymbol v850_elf_tcom_symbol;
2592 static asymbol * v850_elf_tcom_symbol_ptr;
2593 static asection v850_elf_zcom_section;
2594 static asymbol v850_elf_zcom_symbol;
2595 static asymbol * v850_elf_zcom_symbol_ptr;
2597 /* Given a BFD section, try to locate the
2598 corresponding ELF section index. */
2601 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2605 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2606 *retval = SHN_V850_SCOMMON;
2607 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2608 *retval = SHN_V850_TCOMMON;
2609 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2610 *retval = SHN_V850_ZCOMMON;
2617 /* Handle the special V850 section numbers that a symbol may use. */
2620 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2622 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2625 indx = elfsym->internal_elf_sym.st_shndx;
2627 /* If the section index is an "ordinary" index, then it may
2628 refer to a v850 specific section created by the assembler.
2629 Check the section's type and change the index it matches.
2631 FIXME: Should we alter the st_shndx field as well ? */
2633 if (indx < elf_numsections (abfd))
2634 switch (elf_elfsections (abfd)[indx]->sh_type)
2636 case SHT_V850_SCOMMON:
2637 indx = SHN_V850_SCOMMON;
2640 case SHT_V850_TCOMMON:
2641 indx = SHN_V850_TCOMMON;
2644 case SHT_V850_ZCOMMON:
2645 indx = SHN_V850_ZCOMMON;
2654 case SHN_V850_SCOMMON:
2655 if (v850_elf_scom_section.name == NULL)
2657 /* Initialize the small common section. */
2658 v850_elf_scom_section.name = ".scommon";
2659 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2660 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2661 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
2662 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
2663 v850_elf_scom_symbol.name = ".scommon";
2664 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
2665 v850_elf_scom_symbol.section = & v850_elf_scom_section;
2666 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
2668 asym->section = & v850_elf_scom_section;
2669 asym->value = elfsym->internal_elf_sym.st_size;
2672 case SHN_V850_TCOMMON:
2673 if (v850_elf_tcom_section.name == NULL)
2675 /* Initialize the tcommon section. */
2676 v850_elf_tcom_section.name = ".tcommon";
2677 v850_elf_tcom_section.flags = SEC_IS_COMMON;
2678 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
2679 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
2680 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
2681 v850_elf_tcom_symbol.name = ".tcommon";
2682 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
2683 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
2684 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
2686 asym->section = & v850_elf_tcom_section;
2687 asym->value = elfsym->internal_elf_sym.st_size;
2690 case SHN_V850_ZCOMMON:
2691 if (v850_elf_zcom_section.name == NULL)
2693 /* Initialize the zcommon section. */
2694 v850_elf_zcom_section.name = ".zcommon";
2695 v850_elf_zcom_section.flags = SEC_IS_COMMON;
2696 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
2697 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
2698 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
2699 v850_elf_zcom_symbol.name = ".zcommon";
2700 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
2701 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
2702 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
2704 asym->section = & v850_elf_zcom_section;
2705 asym->value = elfsym->internal_elf_sym.st_size;
2710 /* Hook called by the linker routine which adds symbols from an object
2711 file. We must handle the special v850 section numbers here. */
2714 v850_elf_add_symbol_hook (bfd *abfd,
2715 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2716 Elf_Internal_Sym *sym,
2717 const char **namep ATTRIBUTE_UNUSED,
2718 flagword *flagsp ATTRIBUTE_UNUSED,
2722 unsigned int indx = sym->st_shndx;
2724 /* If the section index is an "ordinary" index, then it may
2725 refer to a v850 specific section created by the assembler.
2726 Check the section's type and change the index it matches.
2728 FIXME: Should we alter the st_shndx field as well ? */
2730 if (indx < elf_numsections (abfd))
2731 switch (elf_elfsections (abfd)[indx]->sh_type)
2733 case SHT_V850_SCOMMON:
2734 indx = SHN_V850_SCOMMON;
2737 case SHT_V850_TCOMMON:
2738 indx = SHN_V850_TCOMMON;
2741 case SHT_V850_ZCOMMON:
2742 indx = SHN_V850_ZCOMMON;
2751 case SHN_V850_SCOMMON:
2752 *secp = bfd_make_section_old_way (abfd, ".scommon");
2753 (*secp)->flags |= SEC_IS_COMMON;
2754 *valp = sym->st_size;
2757 case SHN_V850_TCOMMON:
2758 *secp = bfd_make_section_old_way (abfd, ".tcommon");
2759 (*secp)->flags |= SEC_IS_COMMON;
2760 *valp = sym->st_size;
2763 case SHN_V850_ZCOMMON:
2764 *secp = bfd_make_section_old_way (abfd, ".zcommon");
2765 (*secp)->flags |= SEC_IS_COMMON;
2766 *valp = sym->st_size;
2774 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2775 const char *name ATTRIBUTE_UNUSED,
2776 Elf_Internal_Sym *sym,
2777 asection *input_sec,
2778 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2780 /* If we see a common symbol, which implies a relocatable link, then
2781 if a symbol was in a special common section in an input file, mark
2782 it as a special common in the output file. */
2784 if (sym->st_shndx == SHN_COMMON)
2786 if (strcmp (input_sec->name, ".scommon") == 0)
2787 sym->st_shndx = SHN_V850_SCOMMON;
2788 else if (strcmp (input_sec->name, ".tcommon") == 0)
2789 sym->st_shndx = SHN_V850_TCOMMON;
2790 else if (strcmp (input_sec->name, ".zcommon") == 0)
2791 sym->st_shndx = SHN_V850_ZCOMMON;
2794 /* The price we pay for using h->other unused bits as flags in the
2795 linker is cleaning up after ourselves. */
2797 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
2798 | V850_OTHER_ERROR);
2804 v850_elf_section_from_shdr (bfd *abfd,
2805 Elf_Internal_Shdr *hdr,
2809 /* There ought to be a place to keep ELF backend specific flags, but
2810 at the moment there isn't one. We just keep track of the
2811 sections by their name, instead. */
2813 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2816 switch (hdr->sh_type)
2818 case SHT_V850_SCOMMON:
2819 case SHT_V850_TCOMMON:
2820 case SHT_V850_ZCOMMON:
2821 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
2822 (bfd_get_section_flags (abfd,
2831 /* Set the correct type for a V850 ELF section. We do this
2832 by the section name, which is a hack, but ought to work. */
2835 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2836 Elf_Internal_Shdr *hdr,
2841 name = bfd_get_section_name (abfd, sec);
2843 if (strcmp (name, ".scommon") == 0)
2844 hdr->sh_type = SHT_V850_SCOMMON;
2845 else if (strcmp (name, ".tcommon") == 0)
2846 hdr->sh_type = SHT_V850_TCOMMON;
2847 else if (strcmp (name, ".zcommon") == 0)
2848 hdr->sh_type = SHT_V850_ZCOMMON;
2853 /* Delete some bytes from a section while relaxing. */
2856 v850_elf_relax_delete_bytes (bfd *abfd,
2862 Elf_Internal_Shdr *symtab_hdr;
2863 Elf32_External_Sym *extsyms;
2864 Elf32_External_Sym *esym;
2865 Elf32_External_Sym *esymend;
2867 unsigned int sec_shndx;
2869 Elf_Internal_Rela *irel;
2870 Elf_Internal_Rela *irelend;
2871 struct elf_link_hash_entry *sym_hash;
2872 Elf_Internal_Shdr *shndx_hdr;
2873 Elf_External_Sym_Shndx *shndx;
2875 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2876 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2878 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2880 contents = elf_section_data (sec)->this_hdr.contents;
2882 /* The deletion must stop at the next ALIGN reloc for an alignment
2883 power larger than the number of bytes we are deleting. */
2885 /* Actually delete the bytes. */
2886 #if (DEBUG_RELAX & 2)
2887 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
2888 sec->name, addr, toaddr, count );
2890 memmove (contents + addr, contents + addr + count,
2891 toaddr - addr - count);
2892 memset (contents + toaddr-count, 0, count);
2894 /* Adjust all the relocs. */
2895 irel = elf_section_data (sec)->relocs;
2896 irelend = irel + sec->reloc_count;
2897 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
2898 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
2900 for (; irel < irelend; irel++)
2902 bfd_vma raddr, paddr, symval;
2903 Elf_Internal_Sym isym;
2905 /* Get the new reloc address. */
2906 raddr = irel->r_offset;
2907 if ((raddr >= (addr + count) && raddr < toaddr))
2908 irel->r_offset -= count;
2910 if (raddr >= addr && raddr < addr + count)
2912 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2917 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
2920 bfd_elf32_swap_symbol_in (abfd,
2921 extsyms + ELF32_R_SYM (irel->r_info),
2922 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
2925 if (isym.st_shndx != sec_shndx)
2928 /* Get the value of the symbol referred to by the reloc. */
2929 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2931 symval = isym.st_value;
2932 #if (DEBUG_RELAX & 2)
2934 char * name = bfd_elf_string_from_elf_section
2935 (abfd, symtab_hdr->sh_link, isym.st_name);
2937 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
2938 sec->name, name, isym.st_name,
2939 sec->output_section->vma, sec->output_offset,
2940 isym.st_value, irel->r_addend);
2947 struct elf_link_hash_entry * h;
2949 /* An external symbol. */
2950 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2952 h = elf_sym_hashes (abfd) [indx];
2953 BFD_ASSERT (h != NULL);
2955 symval = h->root.u.def.value;
2956 #if (DEBUG_RELAX & 2)
2958 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
2959 sec->name, h->root.root.string, h->root.u.def.value,
2960 sec->output_section->vma, sec->output_offset, irel->r_addend);
2964 paddr = symval + irel->r_addend;
2966 if ( (symval >= addr + count && symval < toaddr)
2967 && (paddr < addr + count || paddr >= toaddr))
2968 irel->r_addend += count;
2969 else if ( (symval < addr + count || symval >= toaddr)
2970 && (paddr >= addr + count && paddr < toaddr))
2971 irel->r_addend -= count;
2974 /* Adjust the local symbols defined in this section. */
2976 esymend = esym + symtab_hdr->sh_info;
2978 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
2980 Elf_Internal_Sym isym;
2982 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2984 if (isym.st_shndx == sec_shndx
2985 && isym.st_value >= addr + count
2986 && isym.st_value < toaddr)
2988 isym.st_value -= count;
2990 if (isym.st_value + isym.st_size >= toaddr)
2991 isym.st_size += count;
2993 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
2995 else if (isym.st_shndx == sec_shndx
2996 && isym.st_value < addr + count)
2998 if (isym.st_value+isym.st_size >= addr + count
2999 && isym.st_value+isym.st_size < toaddr)
3000 isym.st_size -= count;
3002 if (isym.st_value >= addr
3003 && isym.st_value < addr + count)
3004 isym.st_value = addr;
3006 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3010 /* Now adjust the global symbols defined in this section. */
3011 esym = extsyms + symtab_hdr->sh_info;
3012 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3014 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3016 Elf_Internal_Sym isym;
3018 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3019 sym_hash = elf_sym_hashes (abfd) [sym_index];
3021 if (isym.st_shndx == sec_shndx
3022 && ((sym_hash)->root.type == bfd_link_hash_defined
3023 || (sym_hash)->root.type == bfd_link_hash_defweak)
3024 && (sym_hash)->root.u.def.section == sec
3025 && (sym_hash)->root.u.def.value >= addr + count
3026 && (sym_hash)->root.u.def.value < toaddr)
3028 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3030 isym.st_size += count;
3031 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3034 (sym_hash)->root.u.def.value -= count;
3036 else if (isym.st_shndx == sec_shndx
3037 && ((sym_hash)->root.type == bfd_link_hash_defined
3038 || (sym_hash)->root.type == bfd_link_hash_defweak)
3039 && (sym_hash)->root.u.def.section == sec
3040 && (sym_hash)->root.u.def.value < addr + count)
3042 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3043 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3044 isym.st_size -= count;
3046 if ((sym_hash)->root.u.def.value >= addr
3047 && (sym_hash)->root.u.def.value < addr + count)
3048 (sym_hash)->root.u.def.value = addr;
3050 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3060 #define NOP_OPCODE (0x0000)
3061 #define MOVHI 0x0640 /* 4byte. */
3062 #define MOVHI_MASK 0x07e0
3063 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3064 #define MOVHI_R2(insn) ((insn) >> 11)
3065 #define MOVEA 0x0620 /* 2byte. */
3066 #define MOVEA_MASK 0x07e0
3067 #define MOVEA_R1(insn) ((insn) & 0x1f)
3068 #define MOVEA_R2(insn) ((insn) >> 11)
3069 #define JARL_4 0x00040780 /* 4byte. */
3070 #define JARL_4_MASK 0xFFFF07FF
3071 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3072 #define ADD_I 0x0240 /* 2byte. */
3073 #define ADD_I_MASK 0x07e0
3074 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3075 #define ADD_R2(insn) ((insn) >> 11)
3076 #define JMP_R 0x0060 /* 2byte. */
3077 #define JMP_R_MASK 0xFFE0
3078 #define JMP_R1(insn) ((insn) & 0x1f)
3081 v850_elf_relax_section (bfd *abfd,
3083 struct bfd_link_info *link_info,
3086 Elf_Internal_Shdr *symtab_hdr;
3087 Elf_Internal_Rela *internal_relocs;
3088 Elf_Internal_Rela *irel;
3089 Elf_Internal_Rela *irelend;
3090 Elf_Internal_Rela *irelalign = NULL;
3091 Elf_Internal_Sym *isymbuf = NULL;
3092 bfd_byte *contents = NULL;
3095 int align_pad_size = 0;
3096 bfd_boolean result = TRUE;
3100 if (link_info->relocatable
3101 || (sec->flags & SEC_RELOC) == 0
3102 || sec->reloc_count == 0)
3105 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3107 internal_relocs = (_bfd_elf_link_read_relocs
3108 (abfd, sec, NULL, NULL, link_info->keep_memory));
3109 if (internal_relocs == NULL)
3112 irelend = internal_relocs + sec->reloc_count;
3114 while (addr < sec->size)
3118 for (irel = internal_relocs; irel < irelend; irel ++)
3119 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3120 && irel->r_offset > addr
3121 && irel->r_offset < toaddr)
3122 toaddr = irel->r_offset;
3125 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3126 addr, toaddr, align_pad_size);
3131 bfd_vma alignmoveto;
3133 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3134 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3136 if (alignmoveto < alignto)
3140 align_pad_size = alignto - alignmoveto;
3142 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3143 alignmoveto, toaddr, align_pad_size);
3145 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3146 toaddr, align_pad_size))
3149 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3150 (i + 1) < toaddr; i += 2)
3151 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3159 for (irel = internal_relocs; irel < irelend; irel++)
3166 Elf_Internal_Rela *hi_irelfn;
3167 Elf_Internal_Rela *lo_irelfn;
3168 Elf_Internal_Rela *irelcall;
3169 bfd_signed_vma foff;
3170 unsigned int r_type;
3172 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3173 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3174 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3178 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3184 /* Get the section contents. */
3185 if (contents == NULL)
3187 if (elf_section_data (sec)->this_hdr.contents != NULL)
3188 contents = elf_section_data (sec)->this_hdr.contents;
3191 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3196 /* Read this BFD's local symbols if we haven't done so already. */
3197 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3199 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3200 if (isymbuf == NULL)
3201 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3202 symtab_hdr->sh_info, 0,
3204 if (isymbuf == NULL)
3208 laddr = irel->r_offset;
3210 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3212 /* Check code for -mlong-calls output. */
3213 if (laddr + 16 <= (bfd_vma) sec->size)
3215 insn[0] = bfd_get_16 (abfd, contents + laddr);
3216 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3217 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3218 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3219 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3221 if ((insn[0] & MOVHI_MASK) != MOVHI
3222 || MOVHI_R1 (insn[0]) != 0)
3226 && ((insn[1] & MOVEA_MASK) != MOVEA
3227 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3231 && (insn[2] & JARL_4_MASK) != JARL_4)
3235 && ((insn[3] & ADD_I_MASK) != ADD_I
3236 || ADD_I5 (insn[3]) != 4
3237 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3241 && ((insn[4] & JMP_R_MASK) != JMP_R
3242 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3247 ((*_bfd_error_handler)
3248 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
3249 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3256 ((*_bfd_error_handler)
3257 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
3258 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3263 /* Get the reloc for the address from which the register is
3264 being loaded. This reloc will tell us which function is
3265 actually being called. */
3267 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3269 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3271 if (hi_irelfn->r_offset == laddr + 2
3272 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3276 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3278 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3280 if (lo_irelfn->r_offset == laddr + 6
3281 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3285 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3287 r_type = ELF32_R_TYPE (irelcall->r_info);
3289 if (irelcall->r_offset == laddr + 8
3290 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3294 if ( hi_irelfn == irelend
3295 || lo_irelfn == irelend
3296 || irelcall == irelend)
3298 ((*_bfd_error_handler)
3299 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
3300 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3305 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3307 Elf_Internal_Sym * isym;
3309 /* A local symbol. */
3310 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3312 symval = isym->st_value;
3317 struct elf_link_hash_entry * h;
3319 /* An external symbol. */
3320 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3321 h = elf_sym_hashes (abfd)[indx];
3322 BFD_ASSERT (h != NULL);
3324 if ( h->root.type != bfd_link_hash_defined
3325 && h->root.type != bfd_link_hash_defweak)
3326 /* This appears to be a reference to an undefined
3327 symbol. Just ignore it--it will be caught by the
3328 regular reloc processing. */
3331 symval = h->root.u.def.value;
3334 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3336 ((*_bfd_error_handler)
3337 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
3338 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
3343 /* Get the value of the symbol referred to by the reloc. */
3344 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3346 Elf_Internal_Sym *isym;
3349 /* A local symbol. */
3350 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3352 if (isym->st_shndx == SHN_UNDEF)
3353 sym_sec = bfd_und_section_ptr;
3354 else if (isym->st_shndx == SHN_ABS)
3355 sym_sec = bfd_abs_section_ptr;
3356 else if (isym->st_shndx == SHN_COMMON)
3357 sym_sec = bfd_com_section_ptr;
3359 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3360 symval = (isym->st_value
3361 + sym_sec->output_section->vma
3362 + sym_sec->output_offset);
3367 struct elf_link_hash_entry *h;
3369 /* An external symbol. */
3370 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3371 h = elf_sym_hashes (abfd)[indx];
3372 BFD_ASSERT (h != NULL);
3374 if ( h->root.type != bfd_link_hash_defined
3375 && h->root.type != bfd_link_hash_defweak)
3376 /* This appears to be a reference to an undefined
3377 symbol. Just ignore it--it will be caught by the
3378 regular reloc processing. */
3381 symval = (h->root.u.def.value
3382 + h->root.u.def.section->output_section->vma
3383 + h->root.u.def.section->output_offset);
3386 addend = irel->r_addend;
3388 foff = (symval + addend
3390 + sec->output_section->vma
3391 + sec->output_offset
3394 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3397 + sec->output_section->vma
3398 + sec->output_offset),
3399 symval, addend, foff);
3402 if (foff < -0x100000 || foff >= 0x100000)
3403 /* After all that work, we can't shorten this function call. */
3406 /* For simplicity of coding, we are going to modify the section
3407 contents, the section relocs, and the BFD symbol table. We
3408 must tell the rest of the code not to free up this
3409 information. It would be possible to instead create a table
3410 of changes which have to be made, as is done in coff-mips.c;
3411 that would be more work, but would require less memory when
3412 the linker is run. */
3413 elf_section_data (sec)->relocs = internal_relocs;
3414 elf_section_data (sec)->this_hdr.contents = contents;
3415 symtab_hdr->contents = (bfd_byte *) isymbuf;
3417 /* Replace the long call with a jarl. */
3418 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3419 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3421 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3425 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3426 /* If this needs to be changed because of future relaxing,
3427 it will be handled here like other internal IND12W
3430 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3431 contents + irel->r_offset);
3433 /* We can't fully resolve this yet, because the external
3434 symbol value may be changed by future relaxing.
3435 We let the final link phase handle it. */
3436 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3437 contents + irel->r_offset);
3440 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3442 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3444 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3446 if (! v850_elf_relax_delete_bytes (abfd, sec,
3447 irel->r_offset + 4, toaddr, 12))
3450 align_pad_size += 12;
3452 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3454 /* Check code for -mlong-jumps output. */
3455 if (laddr + 10 <= (bfd_vma) sec->size)
3457 insn[0] = bfd_get_16 (abfd, contents + laddr);
3458 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3459 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3461 if ((insn[0] & MOVHI_MASK) != MOVHI
3462 || MOVHI_R1 (insn[0]) != 0)
3466 && ((insn[1] & MOVEA_MASK) != MOVEA
3467 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3471 && ((insn[2] & JMP_R_MASK) != JMP_R
3472 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3477 ((*_bfd_error_handler)
3478 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
3479 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3486 ((*_bfd_error_handler)
3487 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
3488 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3493 /* Get the reloc for the address from which the register is
3494 being loaded. This reloc will tell us which function is
3495 actually being called. */
3496 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3498 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3500 if (hi_irelfn->r_offset == laddr + 2
3501 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3505 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3507 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3509 if (lo_irelfn->r_offset == laddr + 6
3510 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3514 if ( hi_irelfn == irelend
3515 || lo_irelfn == irelend)
3517 ((*_bfd_error_handler)
3518 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
3519 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3524 /* Get the value of the symbol referred to by the reloc. */
3525 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3527 Elf_Internal_Sym * isym;
3530 /* A local symbol. */
3531 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3533 if (isym->st_shndx == SHN_UNDEF)
3534 sym_sec = bfd_und_section_ptr;
3535 else if (isym->st_shndx == SHN_ABS)
3536 sym_sec = bfd_abs_section_ptr;
3537 else if (isym->st_shndx == SHN_COMMON)
3538 sym_sec = bfd_com_section_ptr;
3540 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3541 symval = (isym->st_value
3542 + sym_sec->output_section->vma
3543 + sym_sec->output_offset);
3546 char * name = bfd_elf_string_from_elf_section
3547 (abfd, symtab_hdr->sh_link, isym->st_name);
3549 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3550 sym_sec->name, name, isym->st_name,
3551 sym_sec->output_section->vma,
3552 sym_sec->output_offset,
3553 isym->st_value, irel->r_addend);
3560 struct elf_link_hash_entry * h;
3562 /* An external symbol. */
3563 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3564 h = elf_sym_hashes (abfd)[indx];
3565 BFD_ASSERT (h != NULL);
3567 if ( h->root.type != bfd_link_hash_defined
3568 && h->root.type != bfd_link_hash_defweak)
3569 /* This appears to be a reference to an undefined
3570 symbol. Just ignore it--it will be caught by the
3571 regular reloc processing. */
3574 symval = (h->root.u.def.value
3575 + h->root.u.def.section->output_section->vma
3576 + h->root.u.def.section->output_offset);
3579 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3580 sec->name, h->root.root.string, h->root.u.def.value,
3581 sec->output_section->vma, sec->output_offset, irel->r_addend);
3585 addend = irel->r_addend;
3587 foff = (symval + addend
3589 + sec->output_section->vma
3590 + sec->output_offset
3593 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3596 + sec->output_section->vma
3597 + sec->output_offset),
3598 symval, addend, foff);
3600 if (foff < -0x100000 || foff >= 0x100000)
3601 /* After all that work, we can't shorten this function call. */
3604 /* For simplicity of coding, we are going to modify the section
3605 contents, the section relocs, and the BFD symbol table. We
3606 must tell the rest of the code not to free up this
3607 information. It would be possible to instead create a table
3608 of changes which have to be made, as is done in coff-mips.c;
3609 that would be more work, but would require less memory when
3610 the linker is run. */
3611 elf_section_data (sec)->relocs = internal_relocs;
3612 elf_section_data (sec)->this_hdr.contents = contents;
3613 symtab_hdr->contents = (bfd_byte *) isymbuf;
3615 if (foff < -0x100 || foff >= 0x100)
3617 /* Replace the long jump with a jr. */
3619 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3620 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3623 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3625 irel->r_addend = addend;
3628 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3629 /* If this needs to be changed because of future relaxing,
3630 it will be handled here like other internal IND12W
3633 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3634 contents + irel->r_offset);
3636 /* We can't fully resolve this yet, because the external
3637 symbol value may be changed by future relaxing.
3638 We let the final link phase handle it. */
3639 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3642 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3644 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3645 if (!v850_elf_relax_delete_bytes (abfd, sec,
3646 irel->r_offset + 4, toaddr, 6))
3649 align_pad_size += 6;
3653 /* Replace the long jump with a br. */
3655 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3656 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
3659 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
3661 irel->r_addend = addend;
3664 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3665 /* If this needs to be changed because of future relaxing,
3666 it will be handled here like other internal IND12W
3669 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
3670 contents + irel->r_offset);
3672 /* We can't fully resolve this yet, because the external
3673 symbol value may be changed by future relaxing.
3674 We let the final link phase handle it. */
3675 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
3678 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3680 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3681 if (!v850_elf_relax_delete_bytes (abfd, sec,
3682 irel->r_offset + 2, toaddr, 8))
3685 align_pad_size += 8;
3691 for (irel = internal_relocs; irel < irelend; irel++)
3693 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3694 && irel->r_offset == toaddr)
3696 irel->r_offset -= align_pad_size;
3698 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
3709 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
3712 sec->size - align_pad_size);
3714 sec->size -= align_pad_size;
3718 if (internal_relocs != NULL
3719 && elf_section_data (sec)->relocs != internal_relocs)
3720 free (internal_relocs);
3722 if (contents != NULL
3723 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
3727 && symtab_hdr->contents != (bfd_byte *) isymbuf)
3737 static const struct bfd_elf_special_section v850_elf_special_sections[] =
3739 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
3740 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3742 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
3743 + SHF_V850_GPREL) },
3744 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
3745 + SHF_V850_R0REL) },
3746 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3747 + SHF_V850_GPREL) },
3748 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
3749 + SHF_V850_GPREL) },
3750 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3751 + SHF_V850_GPREL) },
3752 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3753 + SHF_V850_EPREL) },
3754 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
3755 + SHF_V850_R0REL) },
3756 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3757 + SHF_V850_EPREL) },
3758 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3759 + SHF_V850_R0REL) },
3760 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
3761 + SHF_V850_R0REL) },
3762 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3763 + SHF_V850_R0REL) },
3764 { NULL, 0, 0, 0, 0 }
3767 #define TARGET_LITTLE_SYM bfd_elf32_v850_vec
3768 #define TARGET_LITTLE_NAME "elf32-v850"
3769 #define ELF_ARCH bfd_arch_v850
3770 #define ELF_MACHINE_CODE EM_V850
3771 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
3772 #define ELF_MAXPAGESIZE 0x1000
3774 #define elf_info_to_howto v850_elf_info_to_howto_rela
3775 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
3777 #define elf_backend_check_relocs v850_elf_check_relocs
3778 #define elf_backend_relocate_section v850_elf_relocate_section
3779 #define elf_backend_object_p v850_elf_object_p
3780 #define elf_backend_final_write_processing v850_elf_final_write_processing
3781 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
3782 #define elf_backend_symbol_processing v850_elf_symbol_processing
3783 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
3784 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
3785 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
3786 #define elf_backend_fake_sections v850_elf_fake_sections
3787 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
3788 #define elf_backend_special_sections v850_elf_special_sections
3790 #define elf_backend_can_gc_sections 1
3791 #define elf_backend_rela_normal 1
3793 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
3794 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
3795 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
3796 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
3797 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
3798 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
3799 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
3801 #define elf_symbol_leading_char '_'
3804 #define elf32_bed elf32_v850_bed
3806 #include "elf32-target.h"
3808 /* Map BFD reloc types to V800 ELF reloc types. */
3810 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
3812 { BFD_RELOC_NONE, R_V810_NONE },
3813 { BFD_RELOC_8, R_V810_BYTE },
3814 { BFD_RELOC_16, R_V810_HWORD },
3815 { BFD_RELOC_32, R_V810_WORD },
3816 { BFD_RELOC_LO16, R_V810_WLO },
3817 { BFD_RELOC_HI16, R_V810_WHI },
3818 { BFD_RELOC_HI16_S, R_V810_WHI1 },
3819 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
3820 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
3821 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
3822 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
3823 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
3824 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
3825 { BFD_RELOC_V850_23, R_V850_WLO23 },
3826 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
3827 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
3828 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
3829 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
3830 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
3833 /* Map a bfd relocation into the appropriate howto structure. */
3835 static reloc_howto_type *
3836 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
3840 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3842 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
3843 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
3845 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
3846 unsigned int idx = elf_reloc_val - R_V810_NONE;
3848 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
3850 return v800_elf_howto_table + idx;
3854 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
3859 static reloc_howto_type *
3860 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
3864 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3866 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
3867 if (v800_elf_howto_table[i].name != NULL
3868 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
3869 return v800_elf_howto_table + i;
3875 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
3878 v800_elf_info_to_howto (bfd * abfd,
3879 arelent * cache_ptr,
3880 Elf_Internal_Rela * dst)
3882 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
3884 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3886 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
3888 if (r_type == R_V800_NONE)
3889 r_type = R_V810_NONE;
3891 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
3892 r_type -= R_V810_NONE;
3893 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
3895 cache_ptr->howto = v800_elf_howto_table + r_type;
3899 #undef TARGET_LITTLE_SYM
3900 #define TARGET_LITTLE_SYM bfd_elf32_v850_rh850_vec
3901 #undef TARGET_LITTLE_NAME
3902 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
3904 #define ELF_ARCH bfd_arch_v850_rh850
3905 #undef ELF_MACHINE_CODE
3906 #define ELF_MACHINE_CODE EM_V800
3907 #undef ELF_MACHINE_ALT1
3910 #define elf32_bed elf32_v850_rh850_bed
3912 #undef elf_info_to_howto
3913 #define elf_info_to_howto v800_elf_info_to_howto
3914 #undef elf_info_to_howto_rel
3915 #define elf_info_to_howto_rel NULL
3916 #undef bfd_elf32_bfd_reloc_type_lookup
3917 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
3918 #undef bfd_elf32_bfd_reloc_name_lookup
3919 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
3921 #include "elf32-target.h"
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