1 /* V850-specific support for 32-bit ELF
2 Copyright (C) 1996-2014 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] == '_'));
1925 v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
1927 return v850_elf_is_local_label_name (abfd, sym->name);
1930 /* We overload some of the bfd_reloc error codes for own purposes. */
1931 #define bfd_reloc_gp_not_found bfd_reloc_other
1932 #define bfd_reloc_ep_not_found bfd_reloc_continue
1933 #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
1935 /* Perform a relocation as part of a final link. */
1937 static bfd_reloc_status_type
1938 v850_elf_final_link_relocate (reloc_howto_type *howto,
1940 bfd *output_bfd ATTRIBUTE_UNUSED,
1941 asection *input_section,
1946 struct bfd_link_info *info,
1948 int is_local ATTRIBUTE_UNUSED)
1950 unsigned int r_type = howto->type;
1951 bfd_byte *hit_data = contents + offset;
1953 /* Adjust the value according to the relocation. */
1957 case R_V850_9_PCREL:
1958 value -= (input_section->output_section->vma
1959 + input_section->output_offset);
1964 case R_V850_16_PCREL:
1965 value -= (input_section->output_section->vma
1966 + input_section->output_offset
1969 /* If the sign extension will corrupt the value then we have overflowed. */
1970 if ((value & 0xffff0000) != 0xffff0000)
1971 return bfd_reloc_overflow;
1976 case R_V850_17_PCREL:
1977 value -= (input_section->output_section->vma
1978 + input_section->output_offset
1981 /* If the sign extension will corrupt the value then we have overflowed. */
1982 if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
1983 return bfd_reloc_overflow;
1985 value = SEXT17 (value);
1989 case R_V850_22_PCREL:
1990 value -= (input_section->output_section->vma
1991 + input_section->output_offset
1994 /* If the sign extension will corrupt the value then we have overflowed. */
1995 if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
1996 return bfd_reloc_overflow;
1998 /* Only the bottom 22 bits of the PC are valid. */
1999 value = SEXT22 (value);
2003 case R_V850_32_PCREL:
2004 value -= (input_section->output_section->vma
2005 + input_section->output_offset
2014 case R_V850_LO16_S1:
2015 case R_V850_LO16_SPLIT_OFFSET:
2030 case R_V850_ZDA_15_16_OFFSET:
2031 case R_V850_ZDA_16_16_OFFSET:
2032 case R_V850_ZDA_16_16_SPLIT_OFFSET:
2033 if (sym_sec == NULL)
2034 return bfd_reloc_undefined;
2036 value -= sym_sec->output_section->vma;
2039 case R_V850_SDA_15_16_OFFSET:
2040 case R_V850_SDA_16_16_OFFSET:
2041 case R_V850_SDA_16_16_SPLIT_OFFSET:
2042 case R_V810_GPWLO_1:
2045 struct bfd_link_hash_entry * h;
2047 if (sym_sec == NULL)
2048 return bfd_reloc_undefined;
2050 /* Get the value of __gp. */
2051 h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE);
2053 || h->type != bfd_link_hash_defined)
2054 return bfd_reloc_gp_not_found;
2056 gp = (h->u.def.value
2057 + h->u.def.section->output_section->vma
2058 + h->u.def.section->output_offset);
2060 value -= sym_sec->output_section->vma;
2061 value -= (gp - sym_sec->output_section->vma);
2065 case R_V850_TDA_4_4_OFFSET:
2066 case R_V850_TDA_4_5_OFFSET:
2067 case R_V850_TDA_7_7_OFFSET:
2068 case R_V850_TDA_7_8_OFFSET:
2069 case R_V850_TDA_6_8_OFFSET:
2070 case R_V850_TDA_16_16_OFFSET:
2073 struct bfd_link_hash_entry * h;
2075 /* Get the value of __ep. */
2076 h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE);
2078 || h->type != bfd_link_hash_defined)
2079 return bfd_reloc_ep_not_found;
2081 ep = (h->u.def.value
2082 + h->u.def.section->output_section->vma
2083 + h->u.def.section->output_offset);
2089 case R_V850_CALLT_6_7_OFFSET:
2092 struct bfd_link_hash_entry * h;
2094 /* Get the value of __ctbp. */
2095 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2097 || h->type != bfd_link_hash_defined)
2098 return bfd_reloc_ctbp_not_found;
2100 ctbp = (h->u.def.value
2101 + h->u.def.section->output_section->vma
2102 + h->u.def.section->output_offset);
2107 case R_V850_CALLT_15_16_OFFSET:
2108 case R_V850_CALLT_16_16_OFFSET:
2111 struct bfd_link_hash_entry * h;
2113 if (sym_sec == NULL)
2114 return bfd_reloc_undefined;
2116 /* Get the value of __ctbp. */
2117 h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE);
2119 || h->type != bfd_link_hash_defined)
2120 return bfd_reloc_ctbp_not_found;
2122 ctbp = (h->u.def.value
2123 + h->u.def.section->output_section->vma
2124 + h->u.def.section->output_offset);
2126 value -= sym_sec->output_section->vma;
2127 value -= (ctbp - sym_sec->output_section->vma);
2133 case R_V850_GNU_VTINHERIT:
2134 case R_V850_GNU_VTENTRY:
2135 case R_V850_LONGCALL:
2136 case R_V850_LONGJUMP:
2138 return bfd_reloc_ok;
2142 fprintf (stderr, "reloc number %d not recognised\n", r_type);
2144 return bfd_reloc_notsupported;
2147 /* Perform the relocation. */
2148 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
2151 /* Relocate an V850 ELF section. */
2154 v850_elf_relocate_section (bfd *output_bfd,
2155 struct bfd_link_info *info,
2157 asection *input_section,
2159 Elf_Internal_Rela *relocs,
2160 Elf_Internal_Sym *local_syms,
2161 asection **local_sections)
2163 Elf_Internal_Shdr *symtab_hdr;
2164 struct elf_link_hash_entry **sym_hashes;
2165 Elf_Internal_Rela *rel;
2166 Elf_Internal_Rela *relend;
2168 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2169 sym_hashes = elf_sym_hashes (input_bfd);
2171 /* Reset the list of remembered HI16S relocs to empty. */
2172 free_hi16s = previous_hi16s;
2173 previous_hi16s = NULL;
2177 relend = relocs + input_section->reloc_count;
2178 for (; rel < relend; rel++)
2180 unsigned int r_type;
2181 reloc_howto_type *howto;
2182 unsigned long r_symndx;
2183 Elf_Internal_Sym *sym;
2185 struct elf_link_hash_entry *h;
2187 bfd_reloc_status_type r;
2189 r_symndx = ELF32_R_SYM (rel->r_info);
2190 r_type = ELF32_R_TYPE (rel->r_info);
2192 if (r_type == R_V850_GNU_VTENTRY
2193 || r_type == R_V850_GNU_VTINHERIT)
2196 if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
2197 howto = v800_elf_howto_table + (r_type - R_V810_NONE);
2199 howto = v850_elf_howto_table + r_type;
2201 BFD_ASSERT (r_type == howto->type);
2206 if (r_symndx < symtab_hdr->sh_info)
2208 sym = local_syms + r_symndx;
2209 sec = local_sections[r_symndx];
2210 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2214 bfd_boolean unresolved_reloc, warned, ignored;
2216 /* Note - this check is delayed until now as it is possible and
2217 valid to have a file without any symbols but with relocs that
2218 can be processed. */
2219 if (sym_hashes == NULL)
2221 info->callbacks->warning
2222 (info, "no hash table available",
2223 NULL, input_bfd, input_section, (bfd_vma) 0);
2228 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2229 r_symndx, symtab_hdr, sym_hashes,
2231 unresolved_reloc, warned, ignored);
2234 if (sec != NULL && discarded_section (sec))
2235 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2236 rel, 1, relend, howto, 0, contents);
2238 if (info->relocatable)
2241 /* FIXME: We should use the addend, but the COFF relocations don't. */
2242 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
2244 contents, rel->r_offset,
2245 relocation, rel->r_addend,
2246 info, sec, h == NULL);
2248 if (r != bfd_reloc_ok)
2251 const char * msg = NULL;
2254 name = h->root.root.string;
2257 name = (bfd_elf_string_from_elf_section
2258 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2259 if (name == NULL || *name == '\0')
2260 name = bfd_section_name (input_bfd, sec);
2265 case bfd_reloc_overflow:
2266 if (! ((*info->callbacks->reloc_overflow)
2267 (info, (h ? &h->root : NULL), name, howto->name,
2268 (bfd_vma) 0, input_bfd, input_section,
2273 case bfd_reloc_undefined:
2274 if (! ((*info->callbacks->undefined_symbol)
2275 (info, name, input_bfd, input_section,
2276 rel->r_offset, TRUE)))
2280 case bfd_reloc_outofrange:
2281 msg = _("internal error: out of range error");
2284 case bfd_reloc_notsupported:
2285 msg = _("internal error: unsupported relocation error");
2288 case bfd_reloc_dangerous:
2289 msg = _("internal error: dangerous relocation");
2292 case bfd_reloc_gp_not_found:
2293 msg = _("could not locate special linker symbol __gp");
2296 case bfd_reloc_ep_not_found:
2297 msg = _("could not locate special linker symbol __ep");
2300 case bfd_reloc_ctbp_not_found:
2301 msg = _("could not locate special linker symbol __ctbp");
2305 msg = _("internal error: unknown error");
2309 if (!((*info->callbacks->warning)
2310 (info, msg, name, input_bfd, input_section,
2322 v850_elf_gc_mark_hook (asection *sec,
2323 struct bfd_link_info *info,
2324 Elf_Internal_Rela *rel,
2325 struct elf_link_hash_entry *h,
2326 Elf_Internal_Sym *sym)
2329 switch (ELF32_R_TYPE (rel->r_info))
2331 case R_V850_GNU_VTINHERIT:
2332 case R_V850_GNU_VTENTRY:
2336 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2339 /* Set the right machine number and architecture. */
2342 v850_elf_object_p (bfd *abfd)
2344 enum bfd_architecture arch;
2347 switch (elf_elfheader (abfd)->e_machine)
2350 arch = bfd_arch_v850_rh850;
2351 mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2352 ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
2355 case EM_CYGNUS_V850:
2357 arch = bfd_arch_v850;
2358 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2361 case E_V850_ARCH: mach = bfd_mach_v850; break;
2362 case E_V850E_ARCH: mach = bfd_mach_v850e; break;
2363 case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
2364 case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
2365 case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
2366 case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
2374 return bfd_default_set_arch_mach (abfd, arch, mach);
2377 /* Store the machine number in the flags field. */
2380 v850_elf_final_write_processing (bfd *abfd,
2381 bfd_boolean linker ATTRIBUTE_UNUSED)
2385 switch (bfd_get_arch (abfd))
2387 case bfd_arch_v850_rh850:
2389 if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
2390 val |= EF_V800_850E3;
2391 elf_elfheader (abfd)->e_flags |= val;
2395 switch (bfd_get_mach (abfd))
2398 case bfd_mach_v850: val = E_V850_ARCH; break;
2399 case bfd_mach_v850e: val = E_V850E_ARCH; break;
2400 case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
2401 case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
2402 case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
2403 case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
2405 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
2406 elf_elfheader (abfd)->e_flags |= val;
2413 /* Function to keep V850 specific file flags. */
2416 v850_elf_set_private_flags (bfd *abfd, flagword flags)
2418 BFD_ASSERT (!elf_flags_init (abfd)
2419 || elf_elfheader (abfd)->e_flags == flags);
2421 elf_elfheader (abfd)->e_flags = flags;
2422 elf_flags_init (abfd) = TRUE;
2426 /* Merge backend specific data from an object file
2427 to the output object file when linking. */
2430 v850_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2435 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2436 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2439 in_flags = elf_elfheader (ibfd)->e_flags;
2440 out_flags = elf_elfheader (obfd)->e_flags;
2442 if (! elf_flags_init (obfd))
2444 /* If the input is the default architecture then do not
2445 bother setting the flags for the output architecture,
2446 instead allow future merges to do this. If no future
2447 merges ever set these flags then they will retain their
2448 unitialised values, which surprise surprise, correspond
2449 to the default values. */
2450 if (bfd_get_arch_info (ibfd)->the_default)
2453 elf_flags_init (obfd) = TRUE;
2454 elf_elfheader (obfd)->e_flags = in_flags;
2456 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
2457 && bfd_get_arch_info (obfd)->the_default)
2458 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
2463 /* Check flag compatibility. */
2464 if (in_flags == out_flags)
2467 if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
2469 if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
2471 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2473 elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
2476 if ((in_flags & EF_RH850_DATA_ALIGN8) != (out_flags & EF_RH850_DATA_ALIGN8))
2478 _bfd_error_handler (_("%B: Alignment mismatch with previous modules"),
2480 elf_elfheader (obfd)->e_flags |= EF_RH850_DATA_ALIGN8;
2486 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
2487 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
2489 /* Allow earlier architecture binaries to be linked with later binaries.
2490 Set the output binary to the later architecture, except for v850e1,
2491 which we set to v850e. */
2492 if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
2493 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2496 if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2497 && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
2499 elf_elfheader (obfd)->e_flags =
2500 ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
2504 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2505 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
2506 && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2508 elf_elfheader (obfd)->e_flags =
2509 ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
2513 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2514 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2515 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
2516 && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2518 elf_elfheader (obfd)->e_flags =
2519 ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
2523 if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
2524 || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
2525 || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
2526 || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
2527 && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
2529 elf_elfheader (obfd)->e_flags =
2530 ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
2534 _bfd_error_handler (_("%B: Architecture mismatch with previous modules"),
2541 /* Display the flags field. */
2544 v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
2546 FILE * file = (FILE *) ptr;
2548 BFD_ASSERT (abfd != NULL && ptr != NULL);
2550 _bfd_elf_print_private_bfd_data (abfd, ptr);
2552 /* xgettext:c-format. */
2553 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
2555 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
2557 if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
2558 fprintf (file, _("unknown v850 architecture"));
2559 else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
2560 fprintf (file, _("v850 E3 architecture"));
2562 fprintf (file, _("v850 architecture"));
2564 if (elf_elfheader (abfd)->e_flags & EF_RH850_DATA_ALIGN8)
2565 fprintf (file, _(", 8-byte data alignment"));
2569 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
2572 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
2573 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
2574 case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
2575 case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
2576 case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
2577 case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
2586 /* V850 ELF uses four common sections. One is the usual one, and the
2587 others are for (small) objects in one of the special data areas:
2588 small, tiny and zero. All the objects are kept together, and then
2589 referenced via the gp register, the ep register or the r0 register
2590 respectively, which yields smaller, faster assembler code. This
2591 approach is copied from elf32-mips.c. */
2593 static asection v850_elf_scom_section;
2594 static asymbol v850_elf_scom_symbol;
2595 static asymbol * v850_elf_scom_symbol_ptr;
2596 static asection v850_elf_tcom_section;
2597 static asymbol v850_elf_tcom_symbol;
2598 static asymbol * v850_elf_tcom_symbol_ptr;
2599 static asection v850_elf_zcom_section;
2600 static asymbol v850_elf_zcom_symbol;
2601 static asymbol * v850_elf_zcom_symbol_ptr;
2603 /* Given a BFD section, try to locate the
2604 corresponding ELF section index. */
2607 v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
2611 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2612 *retval = SHN_V850_SCOMMON;
2613 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2614 *retval = SHN_V850_TCOMMON;
2615 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2616 *retval = SHN_V850_ZCOMMON;
2623 /* Handle the special V850 section numbers that a symbol may use. */
2626 v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
2628 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2631 indx = elfsym->internal_elf_sym.st_shndx;
2633 /* If the section index is an "ordinary" index, then it may
2634 refer to a v850 specific section created by the assembler.
2635 Check the section's type and change the index it matches.
2637 FIXME: Should we alter the st_shndx field as well ? */
2639 if (indx < elf_numsections (abfd))
2640 switch (elf_elfsections (abfd)[indx]->sh_type)
2642 case SHT_V850_SCOMMON:
2643 indx = SHN_V850_SCOMMON;
2646 case SHT_V850_TCOMMON:
2647 indx = SHN_V850_TCOMMON;
2650 case SHT_V850_ZCOMMON:
2651 indx = SHN_V850_ZCOMMON;
2660 case SHN_V850_SCOMMON:
2661 if (v850_elf_scom_section.name == NULL)
2663 /* Initialize the small common section. */
2664 v850_elf_scom_section.name = ".scommon";
2665 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2666 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2667 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
2668 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
2669 v850_elf_scom_symbol.name = ".scommon";
2670 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
2671 v850_elf_scom_symbol.section = & v850_elf_scom_section;
2672 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
2674 asym->section = & v850_elf_scom_section;
2675 asym->value = elfsym->internal_elf_sym.st_size;
2678 case SHN_V850_TCOMMON:
2679 if (v850_elf_tcom_section.name == NULL)
2681 /* Initialize the tcommon section. */
2682 v850_elf_tcom_section.name = ".tcommon";
2683 v850_elf_tcom_section.flags = SEC_IS_COMMON;
2684 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
2685 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
2686 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
2687 v850_elf_tcom_symbol.name = ".tcommon";
2688 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
2689 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
2690 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
2692 asym->section = & v850_elf_tcom_section;
2693 asym->value = elfsym->internal_elf_sym.st_size;
2696 case SHN_V850_ZCOMMON:
2697 if (v850_elf_zcom_section.name == NULL)
2699 /* Initialize the zcommon section. */
2700 v850_elf_zcom_section.name = ".zcommon";
2701 v850_elf_zcom_section.flags = SEC_IS_COMMON;
2702 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
2703 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
2704 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
2705 v850_elf_zcom_symbol.name = ".zcommon";
2706 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
2707 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
2708 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
2710 asym->section = & v850_elf_zcom_section;
2711 asym->value = elfsym->internal_elf_sym.st_size;
2716 /* Hook called by the linker routine which adds symbols from an object
2717 file. We must handle the special v850 section numbers here. */
2720 v850_elf_add_symbol_hook (bfd *abfd,
2721 struct bfd_link_info *info ATTRIBUTE_UNUSED,
2722 Elf_Internal_Sym *sym,
2723 const char **namep ATTRIBUTE_UNUSED,
2724 flagword *flagsp ATTRIBUTE_UNUSED,
2728 unsigned int indx = sym->st_shndx;
2730 /* If the section index is an "ordinary" index, then it may
2731 refer to a v850 specific section created by the assembler.
2732 Check the section's type and change the index it matches.
2734 FIXME: Should we alter the st_shndx field as well ? */
2736 if (indx < elf_numsections (abfd))
2737 switch (elf_elfsections (abfd)[indx]->sh_type)
2739 case SHT_V850_SCOMMON:
2740 indx = SHN_V850_SCOMMON;
2743 case SHT_V850_TCOMMON:
2744 indx = SHN_V850_TCOMMON;
2747 case SHT_V850_ZCOMMON:
2748 indx = SHN_V850_ZCOMMON;
2757 case SHN_V850_SCOMMON:
2758 *secp = bfd_make_section_old_way (abfd, ".scommon");
2759 (*secp)->flags |= SEC_IS_COMMON;
2760 *valp = sym->st_size;
2763 case SHN_V850_TCOMMON:
2764 *secp = bfd_make_section_old_way (abfd, ".tcommon");
2765 (*secp)->flags |= SEC_IS_COMMON;
2766 *valp = sym->st_size;
2769 case SHN_V850_ZCOMMON:
2770 *secp = bfd_make_section_old_way (abfd, ".zcommon");
2771 (*secp)->flags |= SEC_IS_COMMON;
2772 *valp = sym->st_size;
2780 v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2781 const char *name ATTRIBUTE_UNUSED,
2782 Elf_Internal_Sym *sym,
2783 asection *input_sec,
2784 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2786 /* If we see a common symbol, which implies a relocatable link, then
2787 if a symbol was in a special common section in an input file, mark
2788 it as a special common in the output file. */
2790 if (sym->st_shndx == SHN_COMMON)
2792 if (strcmp (input_sec->name, ".scommon") == 0)
2793 sym->st_shndx = SHN_V850_SCOMMON;
2794 else if (strcmp (input_sec->name, ".tcommon") == 0)
2795 sym->st_shndx = SHN_V850_TCOMMON;
2796 else if (strcmp (input_sec->name, ".zcommon") == 0)
2797 sym->st_shndx = SHN_V850_ZCOMMON;
2800 /* The price we pay for using h->other unused bits as flags in the
2801 linker is cleaning up after ourselves. */
2803 sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
2804 | V850_OTHER_ERROR);
2810 v850_elf_section_from_shdr (bfd *abfd,
2811 Elf_Internal_Shdr *hdr,
2815 /* There ought to be a place to keep ELF backend specific flags, but
2816 at the moment there isn't one. We just keep track of the
2817 sections by their name, instead. */
2819 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
2822 switch (hdr->sh_type)
2824 case SHT_V850_SCOMMON:
2825 case SHT_V850_TCOMMON:
2826 case SHT_V850_ZCOMMON:
2827 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
2828 (bfd_get_section_flags (abfd,
2837 /* Set the correct type for a V850 ELF section. We do this
2838 by the section name, which is a hack, but ought to work. */
2841 v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
2842 Elf_Internal_Shdr *hdr,
2847 name = bfd_get_section_name (abfd, sec);
2849 if (strcmp (name, ".scommon") == 0)
2850 hdr->sh_type = SHT_V850_SCOMMON;
2851 else if (strcmp (name, ".tcommon") == 0)
2852 hdr->sh_type = SHT_V850_TCOMMON;
2853 else if (strcmp (name, ".zcommon") == 0)
2854 hdr->sh_type = SHT_V850_ZCOMMON;
2859 /* Delete some bytes from a section while relaxing. */
2862 v850_elf_relax_delete_bytes (bfd *abfd,
2868 Elf_Internal_Shdr *symtab_hdr;
2869 Elf32_External_Sym *extsyms;
2870 Elf32_External_Sym *esym;
2871 Elf32_External_Sym *esymend;
2873 unsigned int sec_shndx;
2875 Elf_Internal_Rela *irel;
2876 Elf_Internal_Rela *irelend;
2877 struct elf_link_hash_entry *sym_hash;
2878 Elf_Internal_Shdr *shndx_hdr;
2879 Elf_External_Sym_Shndx *shndx;
2881 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2882 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2884 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2886 contents = elf_section_data (sec)->this_hdr.contents;
2888 /* The deletion must stop at the next ALIGN reloc for an alignment
2889 power larger than the number of bytes we are deleting. */
2891 /* Actually delete the bytes. */
2892 #if (DEBUG_RELAX & 2)
2893 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
2894 sec->name, addr, toaddr, count );
2896 memmove (contents + addr, contents + addr + count,
2897 toaddr - addr - count);
2898 memset (contents + toaddr-count, 0, count);
2900 /* Adjust all the relocs. */
2901 irel = elf_section_data (sec)->relocs;
2902 irelend = irel + sec->reloc_count;
2903 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
2904 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
2906 for (; irel < irelend; irel++)
2908 bfd_vma raddr, paddr, symval;
2909 Elf_Internal_Sym isym;
2911 /* Get the new reloc address. */
2912 raddr = irel->r_offset;
2913 if ((raddr >= (addr + count) && raddr < toaddr))
2914 irel->r_offset -= count;
2916 if (raddr >= addr && raddr < addr + count)
2918 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2923 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
2926 bfd_elf32_swap_symbol_in (abfd,
2927 extsyms + ELF32_R_SYM (irel->r_info),
2928 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
2931 if (isym.st_shndx != sec_shndx)
2934 /* Get the value of the symbol referred to by the reloc. */
2935 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2937 symval = isym.st_value;
2938 #if (DEBUG_RELAX & 2)
2940 char * name = bfd_elf_string_from_elf_section
2941 (abfd, symtab_hdr->sh_link, isym.st_name);
2943 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
2944 sec->name, name, isym.st_name,
2945 sec->output_section->vma, sec->output_offset,
2946 isym.st_value, irel->r_addend);
2953 struct elf_link_hash_entry * h;
2955 /* An external symbol. */
2956 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2958 h = elf_sym_hashes (abfd) [indx];
2959 BFD_ASSERT (h != NULL);
2961 symval = h->root.u.def.value;
2962 #if (DEBUG_RELAX & 2)
2964 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
2965 sec->name, h->root.root.string, h->root.u.def.value,
2966 sec->output_section->vma, sec->output_offset, irel->r_addend);
2970 paddr = symval + irel->r_addend;
2972 if ( (symval >= addr + count && symval < toaddr)
2973 && (paddr < addr + count || paddr >= toaddr))
2974 irel->r_addend += count;
2975 else if ( (symval < addr + count || symval >= toaddr)
2976 && (paddr >= addr + count && paddr < toaddr))
2977 irel->r_addend -= count;
2980 /* Adjust the local symbols defined in this section. */
2982 esymend = esym + symtab_hdr->sh_info;
2984 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
2986 Elf_Internal_Sym isym;
2988 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2990 if (isym.st_shndx == sec_shndx
2991 && isym.st_value >= addr + count
2992 && isym.st_value < toaddr)
2994 isym.st_value -= count;
2996 if (isym.st_value + isym.st_size >= toaddr)
2997 isym.st_size += count;
2999 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3001 else if (isym.st_shndx == sec_shndx
3002 && isym.st_value < addr + count)
3004 if (isym.st_value+isym.st_size >= addr + count
3005 && isym.st_value+isym.st_size < toaddr)
3006 isym.st_size -= count;
3008 if (isym.st_value >= addr
3009 && isym.st_value < addr + count)
3010 isym.st_value = addr;
3012 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3016 /* Now adjust the global symbols defined in this section. */
3017 esym = extsyms + symtab_hdr->sh_info;
3018 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
3020 for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
3022 Elf_Internal_Sym isym;
3024 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
3025 sym_hash = elf_sym_hashes (abfd) [sym_index];
3027 if (isym.st_shndx == sec_shndx
3028 && ((sym_hash)->root.type == bfd_link_hash_defined
3029 || (sym_hash)->root.type == bfd_link_hash_defweak)
3030 && (sym_hash)->root.u.def.section == sec
3031 && (sym_hash)->root.u.def.value >= addr + count
3032 && (sym_hash)->root.u.def.value < toaddr)
3034 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
3036 isym.st_size += count;
3037 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3040 (sym_hash)->root.u.def.value -= count;
3042 else if (isym.st_shndx == sec_shndx
3043 && ((sym_hash)->root.type == bfd_link_hash_defined
3044 || (sym_hash)->root.type == bfd_link_hash_defweak)
3045 && (sym_hash)->root.u.def.section == sec
3046 && (sym_hash)->root.u.def.value < addr + count)
3048 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
3049 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
3050 isym.st_size -= count;
3052 if ((sym_hash)->root.u.def.value >= addr
3053 && (sym_hash)->root.u.def.value < addr + count)
3054 (sym_hash)->root.u.def.value = addr;
3056 bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
3066 #define NOP_OPCODE (0x0000)
3067 #define MOVHI 0x0640 /* 4byte. */
3068 #define MOVHI_MASK 0x07e0
3069 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
3070 #define MOVHI_R2(insn) ((insn) >> 11)
3071 #define MOVEA 0x0620 /* 2byte. */
3072 #define MOVEA_MASK 0x07e0
3073 #define MOVEA_R1(insn) ((insn) & 0x1f)
3074 #define MOVEA_R2(insn) ((insn) >> 11)
3075 #define JARL_4 0x00040780 /* 4byte. */
3076 #define JARL_4_MASK 0xFFFF07FF
3077 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
3078 #define ADD_I 0x0240 /* 2byte. */
3079 #define ADD_I_MASK 0x07e0
3080 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
3081 #define ADD_R2(insn) ((insn) >> 11)
3082 #define JMP_R 0x0060 /* 2byte. */
3083 #define JMP_R_MASK 0xFFE0
3084 #define JMP_R1(insn) ((insn) & 0x1f)
3087 v850_elf_relax_section (bfd *abfd,
3089 struct bfd_link_info *link_info,
3092 Elf_Internal_Shdr *symtab_hdr;
3093 Elf_Internal_Rela *internal_relocs;
3094 Elf_Internal_Rela *irel;
3095 Elf_Internal_Rela *irelend;
3096 Elf_Internal_Rela *irelalign = NULL;
3097 Elf_Internal_Sym *isymbuf = NULL;
3098 bfd_byte *contents = NULL;
3101 int align_pad_size = 0;
3102 bfd_boolean result = TRUE;
3106 if (link_info->relocatable
3107 || (sec->flags & SEC_RELOC) == 0
3108 || sec->reloc_count == 0)
3111 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
3113 internal_relocs = (_bfd_elf_link_read_relocs
3114 (abfd, sec, NULL, NULL, link_info->keep_memory));
3115 if (internal_relocs == NULL)
3118 irelend = internal_relocs + sec->reloc_count;
3120 while (addr < sec->size)
3124 for (irel = internal_relocs; irel < irelend; irel ++)
3125 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3126 && irel->r_offset > addr
3127 && irel->r_offset < toaddr)
3128 toaddr = irel->r_offset;
3131 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
3132 addr, toaddr, align_pad_size);
3137 bfd_vma alignmoveto;
3139 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
3140 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
3142 if (alignmoveto < alignto)
3146 align_pad_size = alignto - alignmoveto;
3148 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
3149 alignmoveto, toaddr, align_pad_size);
3151 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
3152 toaddr, align_pad_size))
3155 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
3156 (i + 1) < toaddr; i += 2)
3157 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
3165 for (irel = internal_relocs; irel < irelend; irel++)
3172 Elf_Internal_Rela *hi_irelfn;
3173 Elf_Internal_Rela *lo_irelfn;
3174 Elf_Internal_Rela *irelcall;
3175 bfd_signed_vma foff;
3176 unsigned int r_type;
3178 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
3179 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
3180 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
3184 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
3190 /* Get the section contents. */
3191 if (contents == NULL)
3193 if (elf_section_data (sec)->this_hdr.contents != NULL)
3194 contents = elf_section_data (sec)->this_hdr.contents;
3197 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
3202 /* Read this BFD's local symbols if we haven't done so already. */
3203 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
3205 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
3206 if (isymbuf == NULL)
3207 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3208 symtab_hdr->sh_info, 0,
3210 if (isymbuf == NULL)
3214 laddr = irel->r_offset;
3216 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
3218 /* Check code for -mlong-calls output. */
3219 if (laddr + 16 <= (bfd_vma) sec->size)
3221 insn[0] = bfd_get_16 (abfd, contents + laddr);
3222 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3223 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
3224 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
3225 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
3227 if ((insn[0] & MOVHI_MASK) != MOVHI
3228 || MOVHI_R1 (insn[0]) != 0)
3232 && ((insn[1] & MOVEA_MASK) != MOVEA
3233 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3237 && (insn[2] & JARL_4_MASK) != JARL_4)
3241 && ((insn[3] & ADD_I_MASK) != ADD_I
3242 || ADD_I5 (insn[3]) != 4
3243 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
3247 && ((insn[4] & JMP_R_MASK) != JMP_R
3248 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
3253 ((*_bfd_error_handler)
3254 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
3255 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3262 ((*_bfd_error_handler)
3263 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
3264 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3269 /* Get the reloc for the address from which the register is
3270 being loaded. This reloc will tell us which function is
3271 actually being called. */
3273 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3275 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3277 if (hi_irelfn->r_offset == laddr + 2
3278 && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
3282 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3284 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3286 if (lo_irelfn->r_offset == laddr + 6
3287 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3291 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
3293 r_type = ELF32_R_TYPE (irelcall->r_info);
3295 if (irelcall->r_offset == laddr + 8
3296 && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
3300 if ( hi_irelfn == irelend
3301 || lo_irelfn == irelend
3302 || irelcall == irelend)
3304 ((*_bfd_error_handler)
3305 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
3306 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3311 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
3313 Elf_Internal_Sym * isym;
3315 /* A local symbol. */
3316 isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
3318 symval = isym->st_value;
3323 struct elf_link_hash_entry * h;
3325 /* An external symbol. */
3326 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
3327 h = elf_sym_hashes (abfd)[indx];
3328 BFD_ASSERT (h != NULL);
3330 if ( h->root.type != bfd_link_hash_defined
3331 && h->root.type != bfd_link_hash_defweak)
3332 /* This appears to be a reference to an undefined
3333 symbol. Just ignore it--it will be caught by the
3334 regular reloc processing. */
3337 symval = h->root.u.def.value;
3340 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
3342 ((*_bfd_error_handler)
3343 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
3344 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
3349 /* Get the value of the symbol referred to by the reloc. */
3350 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3352 Elf_Internal_Sym *isym;
3355 /* A local symbol. */
3356 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3358 if (isym->st_shndx == SHN_UNDEF)
3359 sym_sec = bfd_und_section_ptr;
3360 else if (isym->st_shndx == SHN_ABS)
3361 sym_sec = bfd_abs_section_ptr;
3362 else if (isym->st_shndx == SHN_COMMON)
3363 sym_sec = bfd_com_section_ptr;
3365 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3366 symval = (isym->st_value
3367 + sym_sec->output_section->vma
3368 + sym_sec->output_offset);
3373 struct elf_link_hash_entry *h;
3375 /* An external symbol. */
3376 indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info;
3377 h = elf_sym_hashes (abfd)[indx];
3378 BFD_ASSERT (h != NULL);
3380 if ( h->root.type != bfd_link_hash_defined
3381 && h->root.type != bfd_link_hash_defweak)
3382 /* This appears to be a reference to an undefined
3383 symbol. Just ignore it--it will be caught by the
3384 regular reloc processing. */
3387 symval = (h->root.u.def.value
3388 + h->root.u.def.section->output_section->vma
3389 + h->root.u.def.section->output_offset);
3392 addend = irel->r_addend;
3394 foff = (symval + addend
3396 + sec->output_section->vma
3397 + sec->output_offset
3400 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3403 + sec->output_section->vma
3404 + sec->output_offset),
3405 symval, addend, foff);
3408 if (foff < -0x100000 || foff >= 0x100000)
3409 /* After all that work, we can't shorten this function call. */
3412 /* For simplicity of coding, we are going to modify the section
3413 contents, the section relocs, and the BFD symbol table. We
3414 must tell the rest of the code not to free up this
3415 information. It would be possible to instead create a table
3416 of changes which have to be made, as is done in coff-mips.c;
3417 that would be more work, but would require less memory when
3418 the linker is run. */
3419 elf_section_data (sec)->relocs = internal_relocs;
3420 elf_section_data (sec)->this_hdr.contents = contents;
3421 symtab_hdr->contents = (bfd_byte *) isymbuf;
3423 /* Replace the long call with a jarl. */
3424 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3425 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
3427 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
3431 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3432 /* If this needs to be changed because of future relaxing,
3433 it will be handled here like other internal IND12W
3436 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
3437 contents + irel->r_offset);
3439 /* We can't fully resolve this yet, because the external
3440 symbol value may be changed by future relaxing.
3441 We let the final link phase handle it. */
3442 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
3443 contents + irel->r_offset);
3446 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3448 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3450 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
3452 if (! v850_elf_relax_delete_bytes (abfd, sec,
3453 irel->r_offset + 4, toaddr, 12))
3456 align_pad_size += 12;
3458 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
3460 /* Check code for -mlong-jumps output. */
3461 if (laddr + 10 <= (bfd_vma) sec->size)
3463 insn[0] = bfd_get_16 (abfd, contents + laddr);
3464 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
3465 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
3467 if ((insn[0] & MOVHI_MASK) != MOVHI
3468 || MOVHI_R1 (insn[0]) != 0)
3472 && ((insn[1] & MOVEA_MASK) != MOVEA
3473 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
3477 && ((insn[2] & JMP_R_MASK) != JMP_R
3478 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
3483 ((*_bfd_error_handler)
3484 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
3485 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
3492 ((*_bfd_error_handler)
3493 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
3494 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
3499 /* Get the reloc for the address from which the register is
3500 being loaded. This reloc will tell us which function is
3501 actually being called. */
3502 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
3504 r_type = ELF32_R_TYPE (hi_irelfn->r_info);
3506 if (hi_irelfn->r_offset == laddr + 2
3507 && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
3511 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
3513 r_type = ELF32_R_TYPE (lo_irelfn->r_info);
3515 if (lo_irelfn->r_offset == laddr + 6
3516 && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
3520 if ( hi_irelfn == irelend
3521 || lo_irelfn == irelend)
3523 ((*_bfd_error_handler)
3524 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
3525 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
3530 /* Get the value of the symbol referred to by the reloc. */
3531 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3533 Elf_Internal_Sym * isym;
3536 /* A local symbol. */
3537 isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info);
3539 if (isym->st_shndx == SHN_UNDEF)
3540 sym_sec = bfd_und_section_ptr;
3541 else if (isym->st_shndx == SHN_ABS)
3542 sym_sec = bfd_abs_section_ptr;
3543 else if (isym->st_shndx == SHN_COMMON)
3544 sym_sec = bfd_com_section_ptr;
3546 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
3547 symval = (isym->st_value
3548 + sym_sec->output_section->vma
3549 + sym_sec->output_offset);
3552 char * name = bfd_elf_string_from_elf_section
3553 (abfd, symtab_hdr->sh_link, isym->st_name);
3555 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3556 sym_sec->name, name, isym->st_name,
3557 sym_sec->output_section->vma,
3558 sym_sec->output_offset,
3559 isym->st_value, irel->r_addend);
3566 struct elf_link_hash_entry * h;
3568 /* An external symbol. */
3569 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3570 h = elf_sym_hashes (abfd)[indx];
3571 BFD_ASSERT (h != NULL);
3573 if ( h->root.type != bfd_link_hash_defined
3574 && h->root.type != bfd_link_hash_defweak)
3575 /* This appears to be a reference to an undefined
3576 symbol. Just ignore it--it will be caught by the
3577 regular reloc processing. */
3580 symval = (h->root.u.def.value
3581 + h->root.u.def.section->output_section->vma
3582 + h->root.u.def.section->output_offset);
3585 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3586 sec->name, h->root.root.string, h->root.u.def.value,
3587 sec->output_section->vma, sec->output_offset, irel->r_addend);
3591 addend = irel->r_addend;
3593 foff = (symval + addend
3595 + sec->output_section->vma
3596 + sec->output_offset
3599 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3602 + sec->output_section->vma
3603 + sec->output_offset),
3604 symval, addend, foff);
3606 if (foff < -0x100000 || foff >= 0x100000)
3607 /* After all that work, we can't shorten this function call. */
3610 /* For simplicity of coding, we are going to modify the section
3611 contents, the section relocs, and the BFD symbol table. We
3612 must tell the rest of the code not to free up this
3613 information. It would be possible to instead create a table
3614 of changes which have to be made, as is done in coff-mips.c;
3615 that would be more work, but would require less memory when
3616 the linker is run. */
3617 elf_section_data (sec)->relocs = internal_relocs;
3618 elf_section_data (sec)->this_hdr.contents = contents;
3619 symtab_hdr->contents = (bfd_byte *) isymbuf;
3621 if (foff < -0x100 || foff >= 0x100)
3623 /* Replace the long jump with a jr. */
3625 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3626 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
3629 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3631 irel->r_addend = addend;
3634 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3635 /* If this needs to be changed because of future relaxing,
3636 it will be handled here like other internal IND12W
3639 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3640 contents + irel->r_offset);
3642 /* We can't fully resolve this yet, because the external
3643 symbol value may be changed by future relaxing.
3644 We let the final link phase handle it. */
3645 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3648 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3650 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3651 if (!v850_elf_relax_delete_bytes (abfd, sec,
3652 irel->r_offset + 4, toaddr, 6))
3655 align_pad_size += 6;
3659 /* Replace the long jump with a br. */
3661 if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
3662 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
3665 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
3667 irel->r_addend = addend;
3670 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3671 /* If this needs to be changed because of future relaxing,
3672 it will be handled here like other internal IND12W
3675 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
3676 contents + irel->r_offset);
3678 /* We can't fully resolve this yet, because the external
3679 symbol value may be changed by future relaxing.
3680 We let the final link phase handle it. */
3681 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
3684 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3686 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3687 if (!v850_elf_relax_delete_bytes (abfd, sec,
3688 irel->r_offset + 2, toaddr, 8))
3691 align_pad_size += 8;
3697 for (irel = internal_relocs; irel < irelend; irel++)
3699 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3700 && irel->r_offset == toaddr)
3702 irel->r_offset -= align_pad_size;
3704 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
3715 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
3718 sec->size - align_pad_size);
3720 sec->size -= align_pad_size;
3724 if (internal_relocs != NULL
3725 && elf_section_data (sec)->relocs != internal_relocs)
3726 free (internal_relocs);
3728 if (contents != NULL
3729 && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
3733 && symtab_hdr->contents != (bfd_byte *) isymbuf)
3743 static const struct bfd_elf_special_section v850_elf_special_sections[] =
3745 { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
3746 { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3748 { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
3749 + SHF_V850_GPREL) },
3750 { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
3751 + SHF_V850_R0REL) },
3752 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3753 + SHF_V850_GPREL) },
3754 { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
3755 + SHF_V850_GPREL) },
3756 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3757 + SHF_V850_GPREL) },
3758 { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3759 + SHF_V850_EPREL) },
3760 { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
3761 + SHF_V850_R0REL) },
3762 { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3763 + SHF_V850_EPREL) },
3764 { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
3765 + SHF_V850_R0REL) },
3766 { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
3767 + SHF_V850_R0REL) },
3768 { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
3769 + SHF_V850_R0REL) },
3770 { NULL, 0, 0, 0, 0 }
3773 #define TARGET_LITTLE_SYM v850_elf32_vec
3774 #define TARGET_LITTLE_NAME "elf32-v850"
3775 #define ELF_ARCH bfd_arch_v850
3776 #define ELF_MACHINE_CODE EM_V850
3777 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
3778 #define ELF_MAXPAGESIZE 0x1000
3780 #define elf_info_to_howto v850_elf_info_to_howto_rela
3781 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
3783 #define elf_backend_check_relocs v850_elf_check_relocs
3784 #define elf_backend_relocate_section v850_elf_relocate_section
3785 #define elf_backend_object_p v850_elf_object_p
3786 #define elf_backend_final_write_processing v850_elf_final_write_processing
3787 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
3788 #define elf_backend_symbol_processing v850_elf_symbol_processing
3789 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
3790 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
3791 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
3792 #define elf_backend_fake_sections v850_elf_fake_sections
3793 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
3794 #define elf_backend_special_sections v850_elf_special_sections
3796 #define elf_backend_can_gc_sections 1
3797 #define elf_backend_rela_normal 1
3799 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
3800 #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
3802 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
3803 #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
3804 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
3805 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
3806 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
3807 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
3809 #define elf_symbol_leading_char '_'
3812 #define elf32_bed elf32_v850_bed
3814 #include "elf32-target.h"
3816 /* Map BFD reloc types to V800 ELF reloc types. */
3818 static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
3820 { BFD_RELOC_NONE, R_V810_NONE },
3821 { BFD_RELOC_8, R_V810_BYTE },
3822 { BFD_RELOC_16, R_V810_HWORD },
3823 { BFD_RELOC_32, R_V810_WORD },
3824 { BFD_RELOC_LO16, R_V810_WLO },
3825 { BFD_RELOC_HI16, R_V810_WHI },
3826 { BFD_RELOC_HI16_S, R_V810_WHI1 },
3827 { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
3828 { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
3829 { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
3830 { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
3831 { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
3832 { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
3833 { BFD_RELOC_V850_23, R_V850_WLO23 },
3834 { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
3835 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
3836 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
3837 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
3838 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
3841 /* Map a bfd relocation into the appropriate howto structure. */
3843 static reloc_howto_type *
3844 v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
3848 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3850 for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
3851 if (v800_elf_reloc_map[i].bfd_reloc_val == code)
3853 unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
3854 unsigned int idx = elf_reloc_val - R_V810_NONE;
3856 BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
3858 return v800_elf_howto_table + idx;
3862 fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
3867 static reloc_howto_type *
3868 v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
3872 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3874 for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
3875 if (v800_elf_howto_table[i].name != NULL
3876 && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
3877 return v800_elf_howto_table + i;
3883 /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
3886 v800_elf_info_to_howto (bfd * abfd,
3887 arelent * cache_ptr,
3888 Elf_Internal_Rela * dst)
3890 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
3892 BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
3894 BFD_ASSERT (r_type < (unsigned int) R_V800_max);
3896 if (r_type == R_V800_NONE)
3897 r_type = R_V810_NONE;
3899 BFD_ASSERT (r_type >= (unsigned int) R_V810_NONE);
3900 r_type -= R_V810_NONE;
3901 BFD_ASSERT (r_type < ARRAY_SIZE (v800_elf_howto_table));
3903 cache_ptr->howto = v800_elf_howto_table + r_type;
3907 #undef TARGET_LITTLE_SYM
3908 #define TARGET_LITTLE_SYM v800_elf32_vec
3909 #undef TARGET_LITTLE_NAME
3910 #define TARGET_LITTLE_NAME "elf32-v850-rh850"
3912 #define ELF_ARCH bfd_arch_v850_rh850
3913 #undef ELF_MACHINE_CODE
3914 #define ELF_MACHINE_CODE EM_V800
3915 #undef ELF_MACHINE_ALT1
3918 #define elf32_bed elf32_v850_rh850_bed
3920 #undef elf_info_to_howto
3921 #define elf_info_to_howto v800_elf_info_to_howto
3922 #undef elf_info_to_howto_rel
3923 #define elf_info_to_howto_rel NULL
3924 #undef bfd_elf32_bfd_reloc_type_lookup
3925 #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
3926 #undef bfd_elf32_bfd_reloc_name_lookup
3927 #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
3929 #include "elf32-target.h"
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