diff options
Diffstat (limited to 'bfd/elf32-h8300.c')
-rw-r--r-- | bfd/elf32-h8300.c | 358 |
1 files changed, 105 insertions, 253 deletions
diff --git a/bfd/elf32-h8300.c b/bfd/elf32-h8300.c index 52213ec84ec..48e2960998d 100644 --- a/bfd/elf32-h8300.c +++ b/bfd/elf32-h8300.c @@ -1,5 +1,6 @@ /* Generic support for 32-bit ELF - Copyright 1993, 1995, 1998, 1999, 2001 Free Software Foundation, Inc. + Copyright 1993, 1995, 1998, 1999, 2001, 2002 + Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -428,6 +429,9 @@ elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section, struct elf_link_hash_entry **sym_hashes; Elf_Internal_Rela *rel, *relend; + if (info->relocateable) + return true; + symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; sym_hashes = elf_sym_hashes (input_bfd); @@ -443,29 +447,9 @@ elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section, bfd_vma relocation; bfd_reloc_status_type r; + /* This is a final link. */ r_symndx = ELF32_R_SYM (rel->r_info); r_type = ELF32_R_TYPE (rel->r_info); - - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } - - continue; - } - - /* This is a final link. */ h = NULL; sym = NULL; sec = NULL; @@ -677,10 +661,7 @@ elf32_h8_merge_private_bfd_data (ibfd, obfd) mov.b:16 -> mov.b:8 2 bytes mov.b:24/32 -> mov.b:8 4 bytes - mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes - - -*/ + mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */ static boolean elf32_h8_relax_section (abfd, sec, link_info, again) @@ -690,15 +671,10 @@ elf32_h8_relax_section (abfd, sec, link_info, again) boolean *again; { Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Shdr *shndx_hdr; Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *free_relocs = NULL; Elf_Internal_Rela *irel, *irelend; bfd_byte *contents = NULL; - bfd_byte *free_contents = NULL; - Elf32_External_Sym *extsyms = NULL; - Elf32_External_Sym *free_extsyms = NULL; - Elf_External_Sym_Shndx *shndx_buf = NULL; + Elf_Internal_Sym *isymbuf = NULL; static asection *last_input_section = NULL; static Elf_Internal_Rela *last_reloc = NULL; @@ -720,7 +696,6 @@ elf32_h8_relax_section (abfd, sec, link_info, again) sec->_cooked_size = sec->_raw_size; symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; /* Get a copy of the native relocations. */ internal_relocs = (_bfd_elf32_link_read_relocs @@ -728,8 +703,6 @@ elf32_h8_relax_section (abfd, sec, link_info, again) link_info->keep_memory)); if (internal_relocs == NULL) goto error_return; - if (! link_info->keep_memory) - free_relocs = internal_relocs; if (sec != last_input_section) last_reloc = NULL; @@ -747,6 +720,13 @@ elf32_h8_relax_section (abfd, sec, link_info, again) if (irel != internal_relocs) last_reloc = irel - 1; + if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8 + && ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16 + && ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8 + && ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8 + && ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16) + continue; + /* Get the section contents if we haven't done so already. */ if (contents == NULL) { @@ -759,7 +739,6 @@ elf32_h8_relax_section (abfd, sec, link_info, again) contents = (bfd_byte *) bfd_malloc (sec->_raw_size); if (contents == NULL) goto error_return; - free_contents = contents; if (! bfd_get_section_contents (abfd, sec, contents, (file_ptr) 0, sec->_raw_size)) @@ -768,57 +747,27 @@ elf32_h8_relax_section (abfd, sec, link_info, again) } /* Read this BFD's local symbols if we haven't done so already. */ - if (extsyms == NULL) + if (isymbuf == NULL && symtab_hdr->sh_info != 0) { - /* Get cached copy if it exists. */ - if (symtab_hdr->contents != NULL) - extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - else - { - /* Go get them off disk. */ - bfd_size_type amt; - - amt = symtab_hdr->sh_info * sizeof (Elf32_External_Sym); - extsyms = (Elf32_External_Sym *) bfd_malloc (amt); - if (extsyms == NULL) - goto error_return; - free_extsyms = extsyms; - if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread ((PTR) extsyms, amt, abfd) != amt) - goto error_return; - symtab_hdr->contents = (PTR) extsyms; - } - - if (shndx_hdr->sh_size != 0) - { - bfd_size_type amt; - - amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx); - shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); - if (shndx_buf == NULL) - goto error_return; - if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt) - goto error_return; - shndx_hdr->contents = (PTR) shndx_buf; - } + isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; + if (isymbuf == NULL) + isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, + symtab_hdr->sh_info, 0, + NULL, NULL, NULL); + if (isymbuf == NULL) + goto error_return; } /* Get the value of the symbol referred to by the reloc. */ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) { - Elf32_External_Sym *esym; - Elf_External_Sym_Shndx *shndx; - Elf_Internal_Sym isym; - asection *sym_sec; - /* A local symbol. */ - esym = extsyms + ELF32_R_SYM (irel->r_info); - shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0); - bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); + Elf_Internal_Sym *isym; + asection *sym_sec; - sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx); - symval = (isym.st_value + isym = isymbuf + ELF64_R_SYM (irel->r_info); + sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); + symval = (isym->st_value + sym_sec->output_section->vma + sym_sec->output_offset); } @@ -878,12 +827,8 @@ elf32_h8_relax_section (abfd, sec, link_info, again) /* Note that we've changed the relocs, section contents, etc. */ elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - free_extsyms = NULL; + symtab_hdr->contents = (unsigned char *) isymbuf; /* If the previous instruction conditionally jumped around this instruction, we may be able to reverse the condition @@ -898,24 +843,17 @@ elf32_h8_relax_section (abfd, sec, link_info, again) && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) { - Elf32_External_Sym *esym; - Elf_External_Sym_Shndx *shndx; bfd_vma last_value; asection *last_sym_sec; - Elf_Internal_Sym last_symbol; + Elf_Internal_Sym *last_sym; /* We will need to examine the symbol used by the previous relocation. */ - esym = extsyms + ELF32_R_SYM (last_reloc->r_info); - shndx = shndx_buf; - if (shndx != NULL) - shndx += ELF32_R_SYM (last_reloc->r_info); - bfd_elf32_swap_symbol_in (abfd, esym, shndx, &last_symbol); - + last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info); last_sym_sec - = bfd_section_from_elf_index (abfd, last_symbol.st_shndx); - last_value = (last_symbol.st_value + = bfd_section_from_elf_index (abfd, last_sym->st_shndx); + last_value = (last_sym->st_value + last_sym_sec->output_section->vma + last_sym_sec->output_offset); @@ -1007,12 +945,8 @@ elf32_h8_relax_section (abfd, sec, link_info, again) /* Note that we've changed the relocs, section contents, etc. */ elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - free_extsyms = NULL; + symtab_hdr->contents = (unsigned char *) isymbuf; /* Get the opcode. */ code = bfd_get_8 (abfd, contents + irel->r_offset - 2); @@ -1068,12 +1002,8 @@ elf32_h8_relax_section (abfd, sec, link_info, again) /* Note that we've changed the relocs, section contents, etc. */ elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - free_extsyms = NULL; + symtab_hdr->contents = (unsigned char *) isymbuf; /* Get the opcode. */ code = bfd_get_8 (abfd, contents + irel->r_offset - 2); @@ -1130,12 +1060,8 @@ elf32_h8_relax_section (abfd, sec, link_info, again) /* Note that we've changed the relocs, section contents, etc. */ elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - free_extsyms = NULL; + symtab_hdr->contents = (unsigned char *) isymbuf; /* Get the opcode. */ code = bfd_get_8 (abfd, contents + irel->r_offset - 2); @@ -1186,12 +1112,8 @@ elf32_h8_relax_section (abfd, sec, link_info, again) /* Note that we've changed the relocs, section contents, etc. */ elf_section_data (sec)->relocs = internal_relocs; - free_relocs = NULL; - elf_section_data (sec)->this_hdr.contents = contents; - free_contents = NULL; - - free_extsyms = NULL; + symtab_hdr->contents = (unsigned char *) isymbuf; /* Get the opcode. */ code = bfd_get_8 (abfd, contents + irel->r_offset - 1); @@ -1222,56 +1144,43 @@ elf32_h8_relax_section (abfd, sec, link_info, again) } } - if (free_relocs != NULL) + if (isymbuf != NULL + && symtab_hdr->contents != (unsigned char *) isymbuf) { - free (free_relocs); - free_relocs = NULL; + if (! link_info->keep_memory) + free (isymbuf); + else + symtab_hdr->contents = (unsigned char *) isymbuf; } - if (free_contents != NULL) + if (contents != NULL + && elf_section_data (sec)->this_hdr.contents != contents) { if (! link_info->keep_memory) - free (free_contents); + free (contents); else { /* Cache the section contents for elf_link_input_bfd. */ elf_section_data (sec)->this_hdr.contents = contents; } - free_contents = NULL; } - if (shndx_buf != NULL) - { - shndx_hdr->contents = NULL; - free (shndx_buf); - } - - if (free_extsyms != NULL) - { - if (! link_info->keep_memory) - { - symtab_hdr->contents = NULL; - free (free_extsyms); - } - } + if (internal_relocs != NULL + && elf_section_data (sec)->relocs != internal_relocs) + free (internal_relocs); return true; error_return: - if (free_relocs != NULL) - free (free_relocs); - if (free_contents != NULL) - free (free_contents); - if (shndx_buf != NULL) - { - shndx_hdr->contents = NULL; - free (shndx_buf); - } - if (free_extsyms != NULL) - { - symtab_hdr->contents = NULL; - free (free_extsyms); - } + if (isymbuf != NULL + && symtab_hdr->contents != (unsigned char *) isymbuf) + free (isymbuf); + if (contents != NULL + && elf_section_data (sec)->this_hdr.contents != contents) + free (contents); + if (internal_relocs != NULL + && elf_section_data (sec)->relocs != internal_relocs) + free (internal_relocs); return false; } @@ -1285,22 +1194,17 @@ elf32_h8_relax_delete_bytes (abfd, sec, addr, count) int count; { Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Shdr *shndx_hdr; - Elf32_External_Sym *extsyms; unsigned int sec_shndx; bfd_byte *contents; Elf_Internal_Rela *irel, *irelend; Elf_Internal_Rela *irelalign; + Elf_Internal_Sym *isym; + Elf_Internal_Sym *isymend; bfd_vma toaddr; - Elf32_External_Sym *esym, *esymend; - Elf_External_Sym_Shndx *shndx; struct elf_link_hash_entry **sym_hashes; struct elf_link_hash_entry **end_hashes; unsigned int symcount; - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); contents = elf_section_data (sec)->this_hdr.contents; @@ -1329,24 +1233,15 @@ elf32_h8_relax_delete_bytes (abfd, sec, addr, count) } /* Adjust the local symbols defined in this section. */ - shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; - shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; - esym = extsyms; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + isym = (Elf_Internal_Sym *) symtab_hdr->contents; + isymend = isym + symtab_hdr->sh_info; + for (; isym < isymend; isym++) { - Elf_Internal_Sym isym; - Elf_External_Sym_Shndx dummy; - - bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); - - if (isym.st_shndx == sec_shndx - && isym.st_value > addr - && isym.st_value < toaddr) - { - isym.st_value -= count; - bfd_elf32_swap_symbol_out (abfd, &isym, esym, &dummy); - } + if (isym->st_shndx == sec_shndx + && isym->st_value > addr + && isym->st_value < toaddr) + isym->st_value -= count; } /* Now adjust the global symbols defined in this section. */ @@ -1379,10 +1274,9 @@ elf32_h8_symbol_address_p (abfd, sec, addr) bfd_vma addr; { Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Shdr *shndx_hdr; unsigned int sec_shndx; - Elf32_External_Sym *esym, *esymend; - Elf_External_Sym_Shndx *shndx; + Elf_Internal_Sym *isym; + Elf_Internal_Sym *isymend; struct elf_link_hash_entry **sym_hashes; struct elf_link_hash_entry **end_hashes; unsigned int symcount; @@ -1391,18 +1285,12 @@ elf32_h8_symbol_address_p (abfd, sec, addr) /* Examine all the symbols. */ symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; - shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; - esym = (Elf32_External_Sym *) symtab_hdr->contents; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) + isym = (Elf_Internal_Sym *) symtab_hdr->contents; + isymend = isym + symtab_hdr->sh_info; + for (; isym < isymend; isym++) { - Elf_Internal_Sym isym; - - bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); - - if (isym.st_shndx == sec_shndx - && isym.st_value == addr) + if (isym->st_shndx == sec_shndx + && isym->st_value == addr) return true; } @@ -1437,15 +1325,11 @@ elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, asymbol **symbols; { Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Shdr *shndx_hdr; asection *input_section = link_order->u.indirect.section; bfd *input_bfd = input_section->owner; asection **sections = NULL; Elf_Internal_Rela *internal_relocs = NULL; - Elf32_External_Sym *external_syms = NULL; - Elf_External_Sym_Shndx *shndx_buf = NULL; - Elf_External_Sym_Shndx *shndx; - Elf_Internal_Sym *internal_syms = NULL; + Elf_Internal_Sym *isymbuf = NULL; /* We only need to handle the case of relaxing, or of having a particular set of section contents, specially. */ @@ -1457,7 +1341,6 @@ elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, symbols); symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; memcpy (data, elf_section_data (input_section)->this_hdr.contents, (size_t) input_section->_raw_size); @@ -1465,48 +1348,26 @@ elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, if ((input_section->flags & SEC_RELOC) != 0 && input_section->reloc_count > 0) { - Elf_Internal_Sym *isymp; asection **secpp; - Elf32_External_Sym *esym, *esymend; + Elf_Internal_Sym *isym, *isymend; bfd_size_type amt; - if (symtab_hdr->contents != NULL) - external_syms = (Elf32_External_Sym *) symtab_hdr->contents; - else if (symtab_hdr->sh_info != 0) - { - amt = symtab_hdr->sh_info; - amt *= sizeof (Elf32_External_Sym); - external_syms = (Elf32_External_Sym *) bfd_malloc (amt); - if (external_syms == NULL) - goto error_return; - if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt) - goto error_return; - } - - if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0) - { - amt = symtab_hdr->sh_info; - amt *= sizeof (Elf_External_Sym_Shndx); - shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); - if (shndx_buf == NULL) - goto error_return; - if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt) - goto error_return; - } - internal_relocs = (_bfd_elf32_link_read_relocs (input_bfd, input_section, (PTR) NULL, (Elf_Internal_Rela *) NULL, false)); if (internal_relocs == NULL) goto error_return; - amt = symtab_hdr->sh_info; - amt *= sizeof (Elf_Internal_Sym); - internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt); - if (internal_syms == NULL && amt != 0) - goto error_return; + if (symtab_hdr->sh_info != 0) + { + isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; + if (isymbuf == NULL) + isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, + symtab_hdr->sh_info, 0, + NULL, NULL, NULL); + if (isymbuf == NULL) + goto error_return; + } amt = symtab_hdr->sh_info; amt *= sizeof (asection *); @@ -1514,58 +1375,48 @@ elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, if (sections == NULL && amt != 0) goto error_return; - for (isymp = internal_syms, secpp = sections, shndx = shndx_buf, - esym = external_syms, esymend = esym + symtab_hdr->sh_info; - esym < esymend; - ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL)) + isymend = isymbuf + symtab_hdr->sh_info; + for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) { asection *isec; - bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isymp); - - if (isymp->st_shndx == SHN_UNDEF) + if (isym->st_shndx == SHN_UNDEF) isec = bfd_und_section_ptr; - else if (isymp->st_shndx == SHN_ABS) + else if (isym->st_shndx == SHN_ABS) isec = bfd_abs_section_ptr; - else if (isymp->st_shndx == SHN_COMMON) + else if (isym->st_shndx == SHN_COMMON) isec = bfd_com_section_ptr; else - isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); + isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); *secpp = isec; } if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd, input_section, data, internal_relocs, - internal_syms, sections)) + isymbuf, sections)) goto error_return; if (sections != NULL) free (sections); - if (internal_syms != NULL) - free (internal_syms); - if (shndx_buf != NULL) - free (shndx_buf); - if (external_syms != NULL && symtab_hdr->contents == NULL) - free (external_syms); - if (internal_relocs != elf_section_data (input_section)->relocs) + if (isymbuf != NULL + && symtab_hdr->contents != (unsigned char *) isymbuf) + free (isymbuf); + if (elf_section_data (input_section)->relocs != internal_relocs) free (internal_relocs); } return data; error_return: - if (internal_relocs != NULL - && internal_relocs != elf_section_data (input_section)->relocs) - free (internal_relocs); - if (shndx_buf != NULL) - free (shndx_buf); - if (external_syms != NULL && symtab_hdr->contents == NULL) - free (external_syms); - if (internal_syms != NULL) - free (internal_syms); if (sections != NULL) free (sections); + if (isymbuf != NULL + && symtab_hdr->contents != (unsigned char *) isymbuf) + free (isymbuf); + if (internal_relocs != NULL + && elf_section_data (input_section)->relocs != internal_relocs) + free (internal_relocs); return NULL; } @@ -1597,6 +1448,7 @@ elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, /* Use an H8 specific linker, not the ELF generic linker. */ #define elf_backend_relocate_section elf32_h8_relocate_section +#define elf_backend_rela_normal 1 /* And relaxing stuff. */ #define bfd_elf32_bfd_relax_section elf32_h8_relax_section |