1 /* MeP-specific support for 32-bit ELF.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 MA 02110-1301, USA. */
27 #include "libiberty.h"
29 /* Forward declarations. */
31 /* Private relocation functions. */
33 #define MEPREL(type, size, bits, right, left, pcrel, overflow, mask) \
34 {(unsigned)type, right, size, bits, pcrel, left, overflow, mep_reloc, #type, FALSE, 0, mask, 0 }
36 #define N complain_overflow_dont
37 #define S complain_overflow_signed
38 #define U complain_overflow_unsigned
40 static bfd_reloc_status_type mep_reloc (bfd *, arelent *, struct bfd_symbol *,
41 void *, asection *, bfd *, char **);
43 static reloc_howto_type mep_elf_howto_table [] =
45 /* type, size, bits, leftshift, rightshift, pcrel, OD/OS/OU, mask. */
46 MEPREL (R_MEP_NONE, 0, 0, 0, 0, 0, N, 0),
47 MEPREL (R_RELC, 0, 0, 0, 0, 0, N, 0),
49 /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */
50 MEPREL (R_MEP_8, 0, 8, 0, 0, 0, U, 0xff),
51 MEPREL (R_MEP_16, 1, 16, 0, 0, 0, U, 0xffff),
52 MEPREL (R_MEP_32, 2, 32, 0, 0, 0, U, 0xffffffff),
53 MEPREL (R_MEP_PCREL8A2, 1, 8, 1, 1, 1, S, 0x00fe),
54 MEPREL (R_MEP_PCREL12A2,1, 12, 1, 1, 1, S, 0x0ffe),
55 MEPREL (R_MEP_PCREL17A2,2, 17, 0, 1, 1, S, 0x0000ffff),
56 MEPREL (R_MEP_PCREL24A2,2, 24, 0, 1, 1, S, 0x07f0ffff),
57 MEPREL (R_MEP_PCABS24A2,2, 24, 0, 1, 0, U, 0x07f0ffff),
58 MEPREL (R_MEP_LOW16, 2, 16, 0, 0, 0, N, 0x0000ffff),
59 MEPREL (R_MEP_HI16U, 2, 32, 0,16, 0, N, 0x0000ffff),
60 MEPREL (R_MEP_HI16S, 2, 32, 0,16, 0, N, 0x0000ffff),
61 MEPREL (R_MEP_GPREL, 2, 16, 0, 0, 0, S, 0x0000ffff),
62 MEPREL (R_MEP_TPREL, 2, 16, 0, 0, 0, S, 0x0000ffff),
63 MEPREL (R_MEP_TPREL7, 1, 7, 0, 0, 0, U, 0x007f),
64 MEPREL (R_MEP_TPREL7A2, 1, 7, 1, 1, 0, U, 0x007e),
65 MEPREL (R_MEP_TPREL7A4, 1, 7, 2, 2, 0, U, 0x007c),
66 MEPREL (R_MEP_UIMM24, 2, 24, 0, 0, 0, U, 0x00ffffff),
67 MEPREL (R_MEP_ADDR24A4, 2, 24, 0, 2, 0, U, 0x00fcffff),
68 MEPREL (R_MEP_GNU_VTINHERIT,1, 0,16,32, 0, N, 0x0000),
69 MEPREL (R_MEP_GNU_VTENTRY,1, 0,16,32, 0, N, 0x0000),
73 #define VALID_MEP_RELOC(N) ((N) >= 0 \
74 && (N) < ARRAY_SIZE (mep_elf_howto_table)
80 static bfd_reloc_status_type
82 (bfd * abfd ATTRIBUTE_UNUSED,
83 arelent * reloc_entry ATTRIBUTE_UNUSED,
84 struct bfd_symbol * symbol ATTRIBUTE_UNUSED,
85 void * data ATTRIBUTE_UNUSED,
86 asection * input_section ATTRIBUTE_UNUSED,
87 bfd * output_bfd ATTRIBUTE_UNUSED,
88 char ** error_message ATTRIBUTE_UNUSED)
95 #define BFD_RELOC_MEP_NONE BFD_RELOC_NONE
96 #if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
97 #define MAP(n) case BFD_RELOC_MEP_##n: type = R_MEP_##n; break
99 #define MAP(n) case BFD_RELOC_MEP_/**/n: type = R_MEP_/**/n; break
102 static reloc_howto_type *
103 mep_reloc_type_lookup
104 (bfd * abfd ATTRIBUTE_UNUSED,
105 bfd_reloc_code_real_type code)
107 unsigned int type = 0;
121 case BFD_RELOC_VTABLE_ENTRY:
122 type = R_MEP_GNU_VTENTRY;
124 case BFD_RELOC_VTABLE_INHERIT:
125 type = R_MEP_GNU_VTINHERIT;
132 /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */
156 /* Pacify gcc -Wall. */
157 fprintf (stderr, "mep: no reloc for code %d\n", code);
161 if (mep_elf_howto_table[type].type != type)
163 fprintf (stderr, "MeP: howto %d has type %d\n", type, mep_elf_howto_table[type].type);
167 return mep_elf_howto_table + type;
172 static reloc_howto_type *
173 mep_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
178 i < sizeof (mep_elf_howto_table) / sizeof (mep_elf_howto_table[0]);
180 if (mep_elf_howto_table[i].name != NULL
181 && strcasecmp (mep_elf_howto_table[i].name, r_name) == 0)
182 return &mep_elf_howto_table[i];
187 /* Perform a single relocation. */
189 static struct bfd_link_info *mep_info;
190 static int warn_tp = 0, warn_sda = 0;
199 struct bfd_link_hash_entry *h;
204 h = bfd_link_hash_lookup (mep_info->hash, name, FALSE, FALSE, TRUE);
205 if (h == 0 || h->type != bfd_link_hash_defined)
210 *cache = (h->u.def.value
211 + h->u.def.section->output_section->vma
212 + h->u.def.section->output_offset);
217 mep_tpoff_base (bfd_vma ofs)
219 static bfd_vma cache = 0;
220 return mep_lookup_global ("__tpbase", ofs, &cache, &warn_tp);
224 mep_sdaoff_base (bfd_vma ofs)
226 static bfd_vma cache = 0;
227 return mep_lookup_global ("__sdabase", ofs, &cache, &warn_sda);
230 static bfd_reloc_status_type
231 mep_final_link_relocate
232 (reloc_howto_type * howto,
234 asection * input_section,
236 Elf_Internal_Rela * rel,
243 bfd_reloc_status_type r = bfd_reloc_ok;
246 if (bfd_big_endian (input_bfd))
257 pc = (input_section->output_section->vma
258 + input_section->output_offset
261 s = relocation + rel->r_addend;
263 byte = (unsigned char *)contents + rel->r_offset;
265 if (howto->type == R_MEP_PCREL24A2
269 /* This is an unreachable branch to an undefined weak function.
270 Silently ignore it, since the opcode can't do that but should
271 never be executed anyway. */
275 if (howto->pc_relative)
278 u = (unsigned long) s;
283 /* This section generated from bfd/mep-relocs.pl from include/elf/mep.h. */
284 case R_MEP_8: /* 76543210 */
285 if (u > 255) r = bfd_reloc_overflow;
286 byte[0] = (u & 0xff);
288 case R_MEP_16: /* fedcba9876543210 */
289 if (u > 65535) r = bfd_reloc_overflow;
290 byte[0^e2] = ((u >> 8) & 0xff);
291 byte[1^e2] = (u & 0xff);
293 case R_MEP_32: /* vutsrqponmlkjihgfedcba9876543210 */
294 byte[0^e4] = ((u >> 24) & 0xff);
295 byte[1^e4] = ((u >> 16) & 0xff);
296 byte[2^e4] = ((u >> 8) & 0xff);
297 byte[3^e4] = (u & 0xff);
299 case R_MEP_PCREL8A2: /* --------7654321- */
300 if (-128 > s || s > 127) r = bfd_reloc_overflow;
301 byte[1^e2] = (byte[1^e2] & 0x01) | (s & 0xfe);
303 case R_MEP_PCREL12A2: /* ----ba987654321- */
304 if (-2048 > s || s > 2047) r = bfd_reloc_overflow;
305 byte[0^e2] = (byte[0^e2] & 0xf0) | ((s >> 8) & 0x0f);
306 byte[1^e2] = (byte[1^e2] & 0x01) | (s & 0xfe);
308 case R_MEP_PCREL17A2: /* ----------------gfedcba987654321 */
309 if (-65536 > s || s > 65535) r = bfd_reloc_overflow;
310 byte[2^e2] = ((s >> 9) & 0xff);
311 byte[3^e2] = ((s >> 1) & 0xff);
313 case R_MEP_PCREL24A2: /* -----7654321----nmlkjihgfedcba98 */
314 if (-8388608 > s || s > 8388607) r = bfd_reloc_overflow;
315 byte[0^e2] = (byte[0^e2] & 0xf8) | ((s >> 5) & 0x07);
316 byte[1^e2] = (byte[1^e2] & 0x0f) | ((s << 3) & 0xf0);
317 byte[2^e2] = ((s >> 16) & 0xff);
318 byte[3^e2] = ((s >> 8) & 0xff);
320 case R_MEP_PCABS24A2: /* -----7654321----nmlkjihgfedcba98 */
321 if (u > 16777215) r = bfd_reloc_overflow;
322 byte[0^e2] = (byte[0^e2] & 0xf8) | ((u >> 5) & 0x07);
323 byte[1^e2] = (byte[1^e2] & 0x0f) | ((u << 3) & 0xf0);
324 byte[2^e2] = ((u >> 16) & 0xff);
325 byte[3^e2] = ((u >> 8) & 0xff);
327 case R_MEP_LOW16: /* ----------------fedcba9876543210 */
328 byte[2^e2] = ((u >> 8) & 0xff);
329 byte[3^e2] = (u & 0xff);
331 case R_MEP_HI16U: /* ----------------vutsrqponmlkjihg */
332 byte[2^e2] = ((u >> 24) & 0xff);
333 byte[3^e2] = ((u >> 16) & 0xff);
335 case R_MEP_HI16S: /* ----------------vutsrqponmlkjihg */
336 byte[2^e2] = ((s >> 24) & 0xff);
337 byte[3^e2] = ((s >> 16) & 0xff);
339 case R_MEP_GPREL: /* ----------------fedcba9876543210 */
340 s -= mep_sdaoff_base(rel->r_offset);
341 if (-32768 > s || s > 32767) r = bfd_reloc_overflow;
342 byte[2^e2] = ((s >> 8) & 0xff);
343 byte[3^e2] = (s & 0xff);
345 case R_MEP_TPREL: /* ----------------fedcba9876543210 */
346 s -= mep_tpoff_base(rel->r_offset);
347 if (-32768 > s || s > 32767) r = bfd_reloc_overflow;
348 byte[2^e2] = ((s >> 8) & 0xff);
349 byte[3^e2] = (s & 0xff);
351 case R_MEP_TPREL7: /* ---------6543210 */
352 u -= mep_tpoff_base(rel->r_offset);
353 if (u > 127) r = bfd_reloc_overflow;
354 byte[1^e2] = (byte[1^e2] & 0x80) | (u & 0x7f);
356 case R_MEP_TPREL7A2: /* ---------654321- */
357 u -= mep_tpoff_base(rel->r_offset);
358 if (u > 127) r = bfd_reloc_overflow;
359 byte[1^e2] = (byte[1^e2] & 0x81) | (u & 0x7e);
361 case R_MEP_TPREL7A4: /* ---------65432-- */
362 u -= mep_tpoff_base(rel->r_offset);
363 if (u > 127) r = bfd_reloc_overflow;
364 byte[1^e2] = (byte[1^e2] & 0x83) | (u & 0x7c);
366 case R_MEP_UIMM24: /* --------76543210nmlkjihgfedcba98 */
367 if (u > 16777215) r = bfd_reloc_overflow;
368 byte[1^e2] = (u & 0xff);
369 byte[2^e2] = ((u >> 16) & 0xff);
370 byte[3^e2] = ((u >> 8) & 0xff);
372 case R_MEP_ADDR24A4: /* --------765432--nmlkjihgfedcba98 */
373 if (u > 16777215) r = bfd_reloc_overflow;
374 byte[1^e2] = (byte[1^e2] & 0x03) | (u & 0xfc);
375 byte[2^e2] = ((u >> 16) & 0xff);
376 byte[3^e2] = ((u >> 8) & 0xff);
378 case R_MEP_GNU_VTINHERIT: /* ---------------- */
380 case R_MEP_GNU_VTENTRY: /* ---------------- */
390 /* Set the howto pointer for a MEP ELF reloc. */
393 mep_info_to_howto_rela
394 (bfd * abfd ATTRIBUTE_UNUSED,
396 Elf_Internal_Rela * dst)
400 r_type = ELF32_R_TYPE (dst->r_info);
401 cache_ptr->howto = & mep_elf_howto_table [r_type];
404 /* Look through the relocs for a section during the first phase.
405 Since we don't do .gots or .plts, we just need to consider the
406 virtual table relocs for gc. */
411 struct bfd_link_info * info,
413 const Elf_Internal_Rela * relocs)
415 Elf_Internal_Shdr * symtab_hdr;
416 struct elf_link_hash_entry ** sym_hashes;
417 struct elf_link_hash_entry ** sym_hashes_end;
418 const Elf_Internal_Rela * rel;
419 const Elf_Internal_Rela * rel_end;
421 if (info->relocatable)
424 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
425 sym_hashes = elf_sym_hashes (abfd);
426 sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
427 if (!elf_bad_symtab (abfd))
428 sym_hashes_end -= symtab_hdr->sh_info;
430 rel_end = relocs + sec->reloc_count;
431 for (rel = relocs; rel < rel_end; rel++)
433 struct elf_link_hash_entry *h;
434 unsigned long r_symndx;
436 r_symndx = ELF32_R_SYM (rel->r_info);
437 if (r_symndx < symtab_hdr->sh_info)
440 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
446 /* Relocate a MEP ELF section.
447 There is some attempt to make this function usable for many architectures,
448 both USE_REL and USE_RELA ['twould be nice if such a critter existed],
449 if only to serve as a learning tool.
451 The RELOCATE_SECTION function is called by the new ELF backend linker
452 to handle the relocations for a section.
454 The relocs are always passed as Rela structures; if the section
455 actually uses Rel structures, the r_addend field will always be
458 This function is responsible for adjusting the section contents as
459 necessary, and (if using Rela relocs and generating a relocatable
460 output file) adjusting the reloc addend as necessary.
462 This function does not have to worry about setting the reloc
463 address or the reloc symbol index.
465 LOCAL_SYMS is a pointer to the swapped in local symbols.
467 LOCAL_SECTIONS is an array giving the section in the input file
468 corresponding to the st_shndx field of each local symbol.
470 The global hash table entry for the global symbols can be found
471 via elf_sym_hashes (input_bfd).
473 When generating relocatable output, this function must handle
474 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
475 going to be the section symbol corresponding to the output
476 section, which means that the addend must be adjusted
480 mep_elf_relocate_section
481 (bfd * output_bfd ATTRIBUTE_UNUSED,
482 struct bfd_link_info * info,
484 asection * input_section,
486 Elf_Internal_Rela * relocs,
487 Elf_Internal_Sym * local_syms,
488 asection ** local_sections)
490 Elf_Internal_Shdr * symtab_hdr;
491 struct elf_link_hash_entry ** sym_hashes;
492 Elf_Internal_Rela * rel;
493 Elf_Internal_Rela * relend;
495 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
496 sym_hashes = elf_sym_hashes (input_bfd);
497 relend = relocs + input_section->reloc_count;
501 for (rel = relocs; rel < relend; rel ++)
503 reloc_howto_type * howto;
504 unsigned long r_symndx;
505 Elf_Internal_Sym * sym;
507 struct elf_link_hash_entry * h;
509 bfd_reloc_status_type r;
510 const char * name = NULL;
513 r_type = ELF32_R_TYPE (rel->r_info);
515 r_symndx = ELF32_R_SYM (rel->r_info);
517 /* Is this a complex relocation? */
518 if (!info->relocatable && ELF32_R_TYPE (rel->r_info) == R_RELC)
520 bfd_elf_perform_complex_relocation (output_bfd, info,
521 input_bfd, input_section, contents,
522 rel, local_syms, local_sections);
526 howto = mep_elf_howto_table + ELF32_R_TYPE (rel->r_info);
531 if (r_symndx < symtab_hdr->sh_info)
533 sym = local_syms + r_symndx;
534 sec = local_sections [r_symndx];
535 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
537 name = bfd_elf_string_from_elf_section
538 (input_bfd, symtab_hdr->sh_link, sym->st_name);
539 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
541 fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
542 sec->name, name, sym->st_name,
543 sec->output_section->vma, sec->output_offset,
544 sym->st_value, rel->r_addend);
550 h = sym_hashes [r_symndx];
552 while (h->root.type == bfd_link_hash_indirect
553 || h->root.type == bfd_link_hash_warning)
554 h = (struct elf_link_hash_entry *) h->root.u.i.link;
556 name = h->root.root.string;
558 if (h->root.type == bfd_link_hash_defined
559 || h->root.type == bfd_link_hash_defweak)
561 sec = h->root.u.def.section;
562 relocation = (h->root.u.def.value
563 + sec->output_section->vma
564 + sec->output_offset);
567 "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
568 sec->name, name, h->root.u.def.value,
569 sec->output_section->vma, sec->output_offset, relocation);
572 else if (h->root.type == bfd_link_hash_undefweak)
575 fprintf (stderr, "undefined: sec: %s, name: %s\n",
579 else if (!info->relocatable)
581 if (! ((*info->callbacks->undefined_symbol)
582 (info, h->root.root.string, input_bfd,
583 input_section, rel->r_offset,
584 (!info->shared && info->unresolved_syms_in_objects == RM_GENERATE_ERROR))))
587 fprintf (stderr, "unknown: name: %s\n", name);
592 if (sec != NULL && elf_discarded_section (sec))
594 /* For relocs against symbols from removed linkonce sections,
595 or sections discarded by a linker script, we just want the
596 section contents zeroed. Avoid any special processing. */
597 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
603 if (info->relocatable)
605 /* This is a relocatable link. We don't have to change
606 anything, unless the reloc is against a section symbol,
607 in which case we have to adjust according to where the
608 section symbol winds up in the output section. */
609 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
610 rel->r_addend += sec->output_offset;
617 r = mep_final_link_relocate (howto, input_bfd, input_section,
618 contents, rel, relocation);
622 if (r != bfd_reloc_ok)
624 const char * msg = (const char *) NULL;
628 case bfd_reloc_overflow:
629 r = info->callbacks->reloc_overflow
630 (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
631 input_bfd, input_section, rel->r_offset);
634 case bfd_reloc_undefined:
635 r = info->callbacks->undefined_symbol
636 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
639 case bfd_reloc_outofrange:
640 msg = _("internal error: out of range error");
643 case bfd_reloc_notsupported:
644 msg = _("internal error: unsupported relocation error");
647 case bfd_reloc_dangerous:
648 msg = _("internal error: dangerous relocation");
652 msg = _("internal error: unknown error");
657 r = info->callbacks->warning
658 (info, msg, name, input_bfd, input_section, rel->r_offset);
666 info->callbacks->undefined_symbol
667 (info, "__tpbase", input_bfd, input_section, warn_tp-1, TRUE);
669 info->callbacks->undefined_symbol
670 (info, "__sdabase", input_bfd, input_section, warn_sda-1, TRUE);
671 if (warn_sda || warn_tp)
678 /* Update the got entry reference counts for the section being
682 mep_elf_gc_sweep_hook
683 (bfd * abfd ATTRIBUTE_UNUSED,
684 struct bfd_link_info * info ATTRIBUTE_UNUSED,
685 asection * sec ATTRIBUTE_UNUSED,
686 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)
691 /* Return the section that should be marked against GC for a given
697 struct bfd_link_info * info ATTRIBUTE_UNUSED,
698 Elf_Internal_Rela * rel,
699 struct elf_link_hash_entry * h,
700 Elf_Internal_Sym * sym)
704 switch (ELF32_R_TYPE (rel->r_info))
707 switch (h->root.type)
709 case bfd_link_hash_defined:
710 case bfd_link_hash_defweak:
711 return h->root.u.def.section;
713 case bfd_link_hash_common:
714 return h->root.u.c.p->section;
723 if (!(elf_bad_symtab (sec->owner)
724 && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
725 && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
726 && sym->st_shndx != SHN_COMMON))
727 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
734 /* Function to set the ELF flag bits. */
737 mep_elf_set_private_flags (bfd * abfd,
740 elf_elfheader (abfd)->e_flags = flags;
741 elf_flags_init (abfd) = TRUE;
746 mep_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd)
748 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
749 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
752 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
753 elf_flags_init (obfd) = TRUE;
755 /* Copy object attributes. */
756 _bfd_elf_copy_obj_attributes (ibfd, obfd);
761 /* Merge backend specific data from an object file to the output
762 object file when linking. */
765 mep_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
767 static bfd *last_ibfd = 0;
768 flagword old_flags, new_flags;
769 flagword old_partial, new_partial;
771 /* Check if we have the same endianess. */
772 if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
775 new_flags = elf_elfheader (ibfd)->e_flags;
776 old_flags = elf_elfheader (obfd)->e_flags;
779 _bfd_error_handler ("%B: old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s",
780 ibfd, old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no");
783 /* First call, no flags set. */
784 if (!elf_flags_init (obfd))
786 elf_flags_init (obfd) = TRUE;
787 old_flags = new_flags;
789 else if ((new_flags | old_flags) & EF_MEP_LIBRARY)
791 /* Non-library flags trump library flags. The choice doesn't really
792 matter if both OLD_FLAGS and NEW_FLAGS have EF_MEP_LIBRARY set. */
793 if (old_flags & EF_MEP_LIBRARY)
794 old_flags = new_flags;
798 /* Make sure they're for the same mach. Allow upgrade from the "mep"
800 new_partial = (new_flags & EF_MEP_CPU_MASK);
801 old_partial = (old_flags & EF_MEP_CPU_MASK);
802 if (new_partial == old_partial)
804 else if (new_partial == EF_MEP_CPU_MEP)
806 else if (old_partial == EF_MEP_CPU_MEP)
807 old_flags = (old_flags & ~EF_MEP_CPU_MASK) | new_partial;
810 _bfd_error_handler (_("%B and %B are for different cores"), last_ibfd, ibfd);
811 bfd_set_error (bfd_error_invalid_target);
815 /* Make sure they're for the same me_module. Allow basic config to
816 mix with any other. */
817 new_partial = (new_flags & EF_MEP_INDEX_MASK);
818 old_partial = (old_flags & EF_MEP_INDEX_MASK);
819 if (new_partial == old_partial)
821 else if (new_partial == 0)
823 else if (old_partial == 0)
824 old_flags = (old_flags & ~EF_MEP_INDEX_MASK) | new_partial;
827 _bfd_error_handler (_("%B and %B are for different configurations"), last_ibfd, ibfd);
828 bfd_set_error (bfd_error_invalid_target);
833 elf_elfheader (obfd)->e_flags = old_flags;
838 /* This will be edited by the MeP configration tool. */
839 static const char * config_names[] =
842 /* start-mepcfgtool */
848 static const char * core_names[] =
850 "MeP", "MeP-c2", "MeP-c3", "MeP-h1"
854 mep_elf_print_private_bfd_data (bfd * abfd, void * ptr)
856 FILE * file = (FILE *) ptr;
857 flagword flags, partial_flags;
859 BFD_ASSERT (abfd != NULL && ptr != NULL);
861 /* Print normal ELF private data. */
862 _bfd_elf_print_private_bfd_data (abfd, ptr);
864 flags = elf_elfheader (abfd)->e_flags;
865 fprintf (file, _("private flags = 0x%lx"), (long)flags);
867 partial_flags = (flags & EF_MEP_CPU_MASK) >> 24;
868 if (partial_flags < ARRAY_SIZE (core_names))
869 fprintf (file, " core: %s", core_names[(long)partial_flags]);
871 partial_flags = flags & EF_MEP_INDEX_MASK;
872 if (partial_flags < ARRAY_SIZE (config_names))
873 fprintf (file, " me_module: %s", config_names[(long)partial_flags]);
880 /* Return the machine subcode from the ELF e_flags header. */
883 elf32_mep_machine (bfd * abfd)
885 switch (elf_elfheader (abfd)->e_flags & EF_MEP_CPU_MASK)
888 case EF_MEP_CPU_C2: return bfd_mach_mep;
889 case EF_MEP_CPU_C3: return bfd_mach_mep;
890 case EF_MEP_CPU_C4: return bfd_mach_mep;
891 case EF_MEP_CPU_H1: return bfd_mach_mep_h1;
898 mep_elf_object_p (bfd * abfd)
900 /* Irix 5 and 6 is broken. Object file symbol tables are not always
901 sorted correctly such that local symbols preceed global symbols,
902 and the sh_info field in the symbol table is not always right. */
903 /* This is needed for the RELC support code. */
904 elf_bad_symtab (abfd) = TRUE;
905 bfd_default_set_arch_mach (abfd, bfd_arch_mep, elf32_mep_machine (abfd));
910 mep_elf_section_flags (flagword * flags, const Elf_Internal_Shdr * hdr)
912 if (hdr->sh_flags & SHF_MEP_VLIW)
913 * flags |= SEC_MEP_VLIW;
918 mep_elf_fake_sections (bfd * abfd ATTRIBUTE_UNUSED,
919 Elf_Internal_Shdr * hdr,
922 if (sec->flags & SEC_MEP_VLIW)
923 hdr->sh_flags |= SHF_MEP_VLIW;
928 #define ELF_ARCH bfd_arch_mep
929 #define ELF_MACHINE_CODE EM_CYGNUS_MEP
930 #define ELF_MAXPAGESIZE 0x1000
932 #define TARGET_BIG_SYM bfd_elf32_mep_vec
933 #define TARGET_BIG_NAME "elf32-mep"
935 #define TARGET_LITTLE_SYM bfd_elf32_mep_little_vec
936 #define TARGET_LITTLE_NAME "elf32-mep-little"
938 #define elf_info_to_howto_rel NULL
939 #define elf_info_to_howto mep_info_to_howto_rela
940 #define elf_backend_relocate_section mep_elf_relocate_section
941 #define elf_backend_gc_mark_hook mep_elf_gc_mark_hook
942 #define elf_backend_gc_sweep_hook mep_elf_gc_sweep_hook
943 #define elf_backend_check_relocs mep_elf_check_relocs
944 #define elf_backend_object_p mep_elf_object_p
945 #define elf_backend_section_flags mep_elf_section_flags
946 #define elf_backend_fake_sections mep_elf_fake_sections
948 #define elf_backend_can_gc_sections 1
950 #define bfd_elf32_bfd_reloc_type_lookup mep_reloc_type_lookup
951 #define bfd_elf32_bfd_reloc_name_lookup mep_reloc_name_lookup
952 #define bfd_elf32_bfd_set_private_flags mep_elf_set_private_flags
953 #define bfd_elf32_bfd_copy_private_bfd_data mep_elf_copy_private_bfd_data
954 #define bfd_elf32_bfd_merge_private_bfd_data mep_elf_merge_private_bfd_data
955 #define bfd_elf32_bfd_print_private_bfd_data mep_elf_print_private_bfd_data
957 /* We use only the RELA entries. */
960 #include "elf32-target.h"