daily update
[deliverable/binutils-gdb.git] / bfd / elf32-m32c.c
index f56efd2e4da026e02e70749e619e4a8f8645cf1e..492c5bc8e822bfb7c6e388807eac84df17af492b 100644 (file)
@@ -32,15 +32,12 @@ static void m32c_info_to_howto_rela
   (bfd *, arelent *, Elf_Internal_Rela *);
 static bfd_boolean m32c_elf_relocate_section 
   (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
-static bfd_boolean m32c_elf_gc_sweep_hook
-  (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-static asection * m32c_elf_gc_mark_hook
-  (asection *, struct bfd_link_info *, Elf_Internal_Rela *, struct elf_link_hash_entry *, Elf_Internal_Sym *);
 static bfd_boolean m32c_elf_check_relocs
   (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
 static bfd_boolean m32c_elf_relax_delete_bytes (bfd *, asection *, bfd_vma, int);
 #ifdef DEBUG
-static char * m32c_get_reloc (long reloc);
+char * m32c_get_reloc (long reloc);
+void dump_symtab (bfd *, void *, void *);
 #endif
 static bfd_boolean m32c_elf_relax_section
 (bfd *abfd, asection *sec, struct bfd_link_info *link_info, bfd_boolean *again);
@@ -63,13 +60,16 @@ static reloc_howto_type m32c_elf_howto_table [] =
         0,                     /* dst_mask */
         FALSE),                /* pcrel_offset */
 
+  /* GCC intentionally overflows these next two in order to work
+     around limitations in the addressing modes, so don't complain
+     about overflow.  */
   HOWTO (R_M32C_16,            /* type */
         0,                     /* rightshift */
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
         16,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
+        complain_overflow_dont, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_M32C_16",           /* name */
         FALSE,                 /* partial_inplace */
@@ -83,7 +83,7 @@ static reloc_howto_type m32c_elf_howto_table [] =
         24,                    /* bitsize */
         FALSE,                 /* pc_relative */
         0,                     /* bitpos */
-        complain_overflow_bitfield, /* complain_on_overflow */
+        complain_overflow_dont, /* complain_on_overflow */
         bfd_elf_generic_reloc, /* special_function */
         "R_M32C_24",           /* name */
         FALSE,                 /* partial_inplace */
@@ -482,6 +482,22 @@ m32c_elf_relocate_section
                relocation = (splt->output_section->vma
                              + splt->output_offset
                              + (*plt_offset & -2));
+               if (name)
+               {
+                 char *newname = bfd_malloc (strlen(name)+5);
+                 strcpy (newname, name);
+                 strcat(newname, ".plt");
+                 _bfd_generic_link_add_one_symbol (info,
+                                                   input_bfd,
+                                                   newname,
+                                                   BSF_FUNCTION | BSF_WEAK,
+                                                   splt,
+                                                   (*plt_offset & -2),
+                                                   0,
+                                                   1,
+                                                   0,
+                                                   0);
+               }
              }
          }
          break;
@@ -555,62 +571,6 @@ m32c_elf_relocate_section
   return TRUE;
 }
 \f
-/* Return the section that should be marked against GC for a given
-   relocation.  */
-
-static asection *
-m32c_elf_gc_mark_hook
-    (asection *                   sec,
-     struct bfd_link_info *       info ATTRIBUTE_UNUSED,
-     Elf_Internal_Rela *          rel,
-     struct elf_link_hash_entry * h,
-     Elf_Internal_Sym *           sym)
-{
-  if (h != NULL)
-    {
-      switch (ELF32_R_TYPE (rel->r_info))
-       {
-       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
-    {
-      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
-m32c_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;
-}
-
 /* We support 16-bit pointers to code above 64k by generating a thunk
    below 64k containing a JMP instruction to the final address.  */
  
@@ -674,16 +634,11 @@ m32c_elf_check_relocs
              splt = bfd_get_section_by_name (dynobj, ".plt");
              if (splt == NULL)
                {
-                 splt = bfd_make_section (dynobj, ".plt");
+                 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+                                   | SEC_IN_MEMORY | SEC_LINKER_CREATED
+                                   | SEC_READONLY | SEC_CODE);
+                 splt = bfd_make_section_with_flags (dynobj, ".plt", flags);
                  if (splt == NULL
-                     || ! bfd_set_section_flags (dynobj, splt,
-                                                 (SEC_ALLOC
-                                                  | SEC_LOAD
-                                                  | SEC_HAS_CONTENTS
-                                                  | SEC_IN_MEMORY
-                                                  | SEC_LINKER_CREATED
-                                                  | SEC_READONLY
-                                                  | SEC_CODE))
                      || ! bfd_set_section_alignment (dynobj, splt, 1))
                    return FALSE;
                }
@@ -920,7 +875,7 @@ m32c_elf_object_p (bfd *abfd)
  \f
 
 #ifdef DEBUG
-static void
+void
 dump_symtab (bfd * abfd, void *internal_syms, void *external_syms)
 {
   size_t locsymcount;
@@ -961,7 +916,6 @@ dump_symtab (bfd * abfd, void *internal_syms, void *external_syms)
        {
        case STT_FUNC: st_info_str = "STT_FUNC";
        case STT_SECTION: st_info_str = "STT_SECTION";
-       case STT_SRELC: st_info_str = "STT_SRELC";
        case STT_FILE: st_info_str = "STT_FILE";
        case STT_OBJECT: st_info_str = "STT_OBJECT";
        case STT_TLS: st_info_str = "STT_TLS";
@@ -1006,7 +960,7 @@ dump_symtab (bfd * abfd, void *internal_syms, void *external_syms)
     free (external_syms);
 }
 
-static char *
+char *
 m32c_get_reloc (long reloc)
 {
   if (0 <= reloc && reloc < R_M32C_max)
@@ -2039,8 +1993,6 @@ m32c_elf_relax_delete_bytes
 #define elf_info_to_howto                      m32c_info_to_howto_rela
 #define elf_backend_object_p                   m32c_elf_object_p
 #define elf_backend_relocate_section           m32c_elf_relocate_section
-#define elf_backend_gc_mark_hook               m32c_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook              m32c_elf_gc_sweep_hook
 #define elf_backend_check_relocs                m32c_elf_check_relocs
 #define elf_backend_object_p                   m32c_elf_object_p
 #define elf_symbol_leading_char                 ('_')
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