/* Morpho Technologies MT specific support for 32-bit ELF
- Copyright 2001, 2002, 2003, 2004, 2005
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
return NULL;
}
+static reloc_howto_type *
+mt_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (mt_elf_howto_table) / sizeof (mt_elf_howto_table[0]);
+ i++)
+ if (mt_elf_howto_table[i].name != NULL
+ && strcasecmp (mt_elf_howto_table[i].name, r_name) == 0)
+ return &mt_elf_howto_table[i];
+
+ return NULL;
+}
+
bfd_reloc_status_type
mt_elf_relocate_hi16
(bfd * input_bfd,
r_symndx = ELF32_R_SYM (rel->r_info);
- /* This is a final link. */
howto = mt_elf_howto_table + ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
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)
+ continue;
/* Finally, the sole MT-specific part. */
switch (r_type)
return TRUE;
}
-/* Return the section that should be marked against GC for a given
- relocation. */
-
-static asection *
-mt_elf_gc_mark_hook
- (asection * sec,
- struct bfd_link_info * info ATTRIBUTE_UNUSED,
- Elf_Internal_Rela * rel ATTRIBUTE_UNUSED,
- struct elf_link_hash_entry * h,
- Elf_Internal_Sym * sym)
-{
- if (h != NULL)
- {
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
-
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
-
- default:
- break;
- }
- }
- else
- {
- if (!(elf_bad_symtab (sec->owner)
- && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
- && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
- && sym->st_shndx != SHN_COMMON))
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
- }
-
- return NULL;
-}
-
-/* Update the got entry reference counts for the section being
- removed. */
-
-static bfd_boolean
-mt_elf_gc_sweep_hook
- (bfd * abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info * info ATTRIBUTE_UNUSED,
- asection * sec ATTRIBUTE_UNUSED,
- const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)
-{
- return TRUE;
-}
-
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
mt_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
{
flagword old_flags, new_flags;
- bfd_boolean error = FALSE;
+ bfd_boolean ok = TRUE;
/* Check if we have the same endianess. */
if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
{
/* CPU has changed. This is invalid, because MRISC, MRISC2 and
MS2 are not subsets of each other. */
- error = 1;
-
- /* FIXME:However, until the compiler is multilibbed, preventing
- mixing breaks the build. So we allow merging and use the
- greater CPU value. This is of course unsafe. */
- error = 0;
- if ((new_flags & EF_MT_CPU_MASK) > (old_flags & EF_MT_CPU_MASK))
- old_flags = ((old_flags & ~EF_MT_CPU_MASK)
- | (new_flags & EF_MT_CPU_MASK));
+ ok = FALSE;
}
- if (!error)
+
+ if (ok)
{
obfd->arch_info = ibfd->arch_info;
elf_elfheader (obfd)->e_flags = old_flags;
}
- return !error;
+ return ok;
}
static bfd_boolean
#define elf_backend_relocate_section mt_elf_relocate_section
#define bfd_elf32_bfd_reloc_type_lookup mt_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup mt_reloc_name_lookup
-#define elf_backend_gc_mark_hook mt_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook mt_elf_gc_sweep_hook
#define elf_backend_check_relocs mt_elf_check_relocs
#define elf_backend_object_p mt_elf_object_p
#define elf_backend_rela_normal 1