/* M16C/M32C specific support for 32-bit ELF.
- Copyright (C) 2005, 2006
+ Copyright (C) 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/m32c.h"
return NULL;
}
+static reloc_howto_type *
+m32c_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (m32c_elf_howto_table) / sizeof (m32c_elf_howto_table[0]);
+ i++)
+ if (m32c_elf_howto_table[i].name != NULL
+ && strcasecmp (m32c_elf_howto_table[i].name, r_name) == 0)
+ return &m32c_elf_howto_table[i];
+
+ return NULL;
+}
+
/* Set the howto pointer for an M32C ELF reloc. */
static void
r_symndx = ELF32_R_SYM (rel->r_info);
- 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;
- }
- }
-
- continue;
- }
-
- /* This is a final link. */
howto = m32c_elf_howto_table + ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
+ relocation = 0;
if (r_symndx < symtab_hdr->sh_info)
{
+ sec->output_offset);
}
else if (h->root.type == bfd_link_hash_undefweak)
- {
- relocation = 0;
- }
- else
+ ;
+ else if (!info->relocatable)
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd,
input_section, rel->r_offset, TRUE)))
return FALSE;
- relocation = 0;
}
}
+ 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 (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ rel->r_addend += sec->output_offset;
+ continue;
+ }
+
switch (ELF32_R_TYPE (rel->r_info))
{
case R_M32C_16:
#define elf_backend_can_gc_sections 1
#define bfd_elf32_bfd_reloc_type_lookup m32c_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup m32c_reloc_name_lookup
#define bfd_elf32_bfd_relax_section m32c_elf_relax_section
#define bfd_elf32_bfd_set_private_flags m32c_elf_set_private_flags
#define bfd_elf32_bfd_merge_private_bfd_data m32c_elf_merge_private_bfd_data