/* 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)
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,
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);
|| 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);
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