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[deliverable/binutils-gdb.git] / bfd / elf64-mmix.c

diff --git a/bfd/elf64-mmix.c b/bfd/elf64-mmix.c
index 6f88fe102f5905ac6e8878b65910a165a7b759c6..e18f4a1f5b68434f396a7cee566da6d9177434bc 100644 (file)
--- a/bfd/elf64-mmix.c
+++ b/bfd/elf64-mmix.c
@@ -1,5 +1,6 @@
 /* MMIX-specific support for 64-bit ELF.
-   Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
    Contributed by Hans-Peter Nilsson <hp@bitrange.com>
 
 This file is part of BFD, the Binary File Descriptor library.
@@ -186,14 +187,6 @@ static bfd_boolean mmix_elf_relocate_section
   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
           Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
 
-static asection * mmix_elf_gc_mark_hook
-  PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
-          struct elf_link_hash_entry *, Elf_Internal_Sym *));
-
-static bfd_boolean mmix_elf_gc_sweep_hook
-  PARAMS ((bfd *, struct bfd_link_info *, asection *,
-          const Elf_Internal_Rela *));
-
 static bfd_reloc_status_type mmix_final_link_relocate
   PARAMS ((reloc_howto_type *, asection *, bfd_byte *,
           bfd_vma, bfd_signed_vma, bfd_vma, const char *, asection *));
@@ -860,13 +853,16 @@ mmix_elf_new_section_hook (abfd, sec)
      bfd *abfd;
      asection *sec;
 {
-  struct _mmix_elf_section_data *sdata;
-  bfd_size_type amt = sizeof (*sdata);
+  if (!sec->used_by_bfd)
+    {
+      struct _mmix_elf_section_data *sdata;
+      bfd_size_type amt = sizeof (*sdata);
 
-  sdata = (struct _mmix_elf_section_data *) bfd_zalloc (abfd, amt);
-  if (sdata == NULL)
-    return FALSE;
-  sec->used_by_bfd = (PTR) sdata;
+      sdata = bfd_zalloc (abfd, amt);
+      if (sdata == NULL)
+       return FALSE;
+      sec->used_by_bfd = sdata;
+    }
 
   return _bfd_elf_new_section_hook (abfd, sec);
 }
@@ -1740,40 +1736,21 @@ mmix_final_link_relocate (howto, input_section, contents,
    relocation.  */
 
 static asection *
-mmix_elf_gc_mark_hook (sec, info, rel, h, sym)
-     asection *sec;
-     struct bfd_link_info *info ATTRIBUTE_UNUSED;
-     Elf_Internal_Rela *rel;
-     struct elf_link_hash_entry *h;
-     Elf_Internal_Sym *sym;
+mmix_elf_gc_mark_hook (asection *sec,
+                      struct bfd_link_info *info,
+                      Elf_Internal_Rela *rel,
+                      struct elf_link_hash_entry *h,
+                      Elf_Internal_Sym *sym)
 {
   if (h != NULL)
-    {
-      switch (ELF64_R_TYPE (rel->r_info))
-       {
-       case R_MMIX_GNU_VTINHERIT:
-       case R_MMIX_GNU_VTENTRY:
-         break;
-
-       default:
-         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
-    return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+    switch (ELF64_R_TYPE (rel->r_info))
+      {
+      case R_MMIX_GNU_VTINHERIT:
+      case R_MMIX_GNU_VTENTRY:
+       return NULL;
+      }
 
-  return NULL;
+  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
 }
 
 /* Update relocation info for a GC-excluded section.  We could supposedly
@@ -1782,11 +1759,10 @@ mmix_elf_gc_mark_hook (sec, info, rel, h, sym)
    present.  Better to waste some memory and (perhaps) a little time.  */
 
 static bfd_boolean
-mmix_elf_gc_sweep_hook (abfd, info, sec, relocs)
-     bfd *abfd ATTRIBUTE_UNUSED;
-     struct bfd_link_info *info ATTRIBUTE_UNUSED;
-     asection *sec ATTRIBUTE_UNUSED;
-     const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
+mmix_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
+                       struct bfd_link_info *info ATTRIBUTE_UNUSED,
+                       asection *sec,
+                       const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
 {
   struct bpo_reloc_section_info *bpodata
     = mmix_elf_section_data (sec)->bpo.reloc;
@@ -2189,8 +2165,7 @@ mmix_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
       (*secp)->flags |= SEC_LINKER_CREATED;
     }
   else if ((*namep)[0] == '_' && (*namep)[1] == '_' && (*namep)[2] == '.'
-          && strncmp (*namep, MMIX_LOC_SECTION_START_SYMBOL_PREFIX,
-                      strlen (MMIX_LOC_SECTION_START_SYMBOL_PREFIX)) == 0)
+          && CONST_STRNEQ (*namep, MMIX_LOC_SECTION_START_SYMBOL_PREFIX))
     {
       /* See if we have another one.  */
       struct bfd_link_hash_entry *h = bfd_link_hash_lookup (info->hash,
@@ -2941,6 +2916,8 @@ mmix_elf_relax_section (abfd, sec, link_info, again)
 
 #define elf_backend_check_relocs       mmix_elf_check_relocs
 #define elf_backend_symbol_processing  mmix_elf_symbol_processing
+#define elf_backend_omit_section_dynsym \
+  ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
 
 #define bfd_elf64_bfd_is_local_label_name \
        mmix_elf_is_local_label_name