diff options
Diffstat (limited to 'bfd/elf32-m68hc1x.c')
| -rw-r--r-- | bfd/elf32-m68hc1x.c | 170 |
1 files changed, 74 insertions, 96 deletions
diff --git a/bfd/elf32-m68hc1x.c b/bfd/elf32-m68hc1x.c index a8ecf59c30d..fdbbcfed11c 100644 --- a/bfd/elf32-m68hc1x.c +++ b/bfd/elf32-m68hc1x.c @@ -1,5 +1,5 @@ /* Motorola 68HC11/HC12-specific support for 32-bit ELF - Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 + Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. Contributed by Stephane Carrez (stcarrez@nerim.fr) @@ -873,86 +873,6 @@ elf32_m68hc11_check_relocs (bfd *abfd, struct bfd_link_info *info, return TRUE; } -static bfd_boolean -m68hc11_get_relocation_value (bfd *input_bfd, struct bfd_link_info *info, - asection *input_section, - asection **local_sections, - Elf_Internal_Sym *local_syms, - Elf_Internal_Rela *rel, - const char **name, - bfd_vma *relocation, bfd_boolean *is_far) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - unsigned long r_symndx; - asection *sec; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; - const char* stub_name = 0; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - - r_symndx = ELF32_R_SYM (rel->r_info); - - /* This is a final link. */ - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - *relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - *is_far = (sym && (sym->st_other & STO_M68HC12_FAR)); - if (*is_far) - stub_name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, - sym->st_name)); - } - else - { - bfd_boolean unresolved_reloc, warned; - - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, *relocation, unresolved_reloc, warned); - - *is_far = (h && (h->other & STO_M68HC12_FAR)); - stub_name = h->root.root.string; - } - - if (h != NULL) - *name = h->root.root.string; - else - { - *name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (*name == NULL || **name == '\0') - *name = bfd_section_name (input_bfd, sec); - } - - if (*is_far && ELF32_R_TYPE (rel->r_info) == R_M68HC11_16) - { - struct elf32_m68hc11_stub_hash_entry* stub; - struct m68hc11_elf_link_hash_table *htab; - - htab = m68hc11_elf_hash_table (info); - stub = m68hc12_stub_hash_lookup (htab->stub_hash_table, - *name, FALSE, FALSE); - if (stub) - { - *relocation = stub->stub_offset - + stub->stub_sec->output_section->vma - + stub->stub_sec->output_offset; - *is_far = FALSE; - } - } - return TRUE; -} - /* Relocate a 68hc11/68hc12 ELF section. */ bfd_boolean elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, @@ -993,6 +913,8 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, bfd_vma insn_addr; bfd_vma insn_page; bfd_boolean is_far = FALSE; + struct elf_link_hash_entry *h; + const char* stub_name = 0; r_symndx = ELF32_R_SYM (rel->r_info); r_type = ELF32_R_TYPE (rel->r_info); @@ -1001,30 +923,86 @@ elf32_m68hc11_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, || r_type == R_M68HC11_GNU_VTINHERIT ) continue; + (*ebd->elf_info_to_howto_rel) (input_bfd, &arel, rel); + howto = arel.howto; + + h = NULL; + sym = NULL; + sec = NULL; + if (r_symndx < symtab_hdr->sh_info) + { + sym = local_syms + r_symndx; + sec = local_sections[r_symndx]; + relocation = (sec->output_section->vma + + sec->output_offset + + sym->st_value); + is_far = (sym && (sym->st_other & STO_M68HC12_FAR)); + if (is_far) + stub_name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, + sym->st_name)); + } + else + { + bfd_boolean unresolved_reloc, warned; + + RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, + r_symndx, symtab_hdr, sym_hashes, + h, sec, relocation, unresolved_reloc, + warned); + + is_far = (h && (h->other & STO_M68HC12_FAR)); + stub_name = h->root.root.string; + } + + if (sec != NULL && elf_discarded_section (sec)) + { + /* For relocs against symbols from removed linkonce sections, + or sections discarded by a linker script, we just want the + section contents zeroed. Avoid any special processing. */ + _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); + rel->r_info = 0; + rel->r_addend = 0; + continue; + } + if (info->relocatable) { /* This is a relocatable 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; - } - } - + if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) + rel->r_addend += sec->output_offset; continue; } - (*ebd->elf_info_to_howto_rel) (input_bfd, &arel, rel); - howto = arel.howto; - m68hc11_get_relocation_value (input_bfd, info, input_section, - local_sections, local_syms, - rel, &name, &relocation, &is_far); + if (h != NULL) + name = h->root.root.string; + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name)); + if (name == NULL || *name == '\0') + name = bfd_section_name (input_bfd, sec); + } + + if (is_far && ELF32_R_TYPE (rel->r_info) == R_M68HC11_16) + { + struct elf32_m68hc11_stub_hash_entry* stub; + struct m68hc11_elf_link_hash_table *htab; + + htab = m68hc11_elf_hash_table (info); + stub = m68hc12_stub_hash_lookup (htab->stub_hash_table, + name, FALSE, FALSE); + if (stub) + { + relocation = stub->stub_offset + + stub->stub_sec->output_section->vma + + stub->stub_sec->output_offset; + is_far = FALSE; + } + } /* Do the memory bank mapping. */ phys_addr = m68hc11_phys_addr (pinfo, relocation + rel->r_addend); |