Fix address violations when reading corrupt VMS records.

[deliverable/binutils-gdb.git] / bfd / elf-bfd.h

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index bff6abc6691776a4d6e737b13ca1ad17efa589ad..b889720e1f2e32c25f2000df031b1db0d07befe2 100644 (file)
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -213,6 +213,9 @@ struct elf_link_hash_entry
   /* Symbol is defined by a shared library with non-default visibility
      in a read/write section.  */
   unsigned int protected_def : 1;
+  /* Symbol is __start_SECNAME or __stop_SECNAME to mark section
+     SECNAME.  */
+  unsigned int start_stop : 1;
 
   /* String table index in .dynstr if this is a dynamic symbol.  */
   unsigned long dynstr_index;
@@ -243,7 +246,15 @@ struct elf_link_hash_entry
     struct bfd_elf_version_tree *vertree;
   } verinfo;
 
-  struct elf_link_virtual_table_entry *vtable;
+  union
+  {
+    /* For __start_SECNAME and __stop_SECNAME symbols, record the first
+       input section whose section name is SECNAME.  */
+    asection *start_stop_section;
+
+    /* Vtable information. */
+    struct elf_link_virtual_table_entry *vtable;
+  } u2;
 };
 
 /* Will references to this symbol always reference the symbol
@@ -1291,7 +1302,7 @@ struct elf_backend_data
      that can't be determined for some reason.  The default definition
      goes by the bfd's EI_CLASS.  */
   unsigned int (*elf_backend_eh_frame_address_size)
-    (bfd *, asection *);
+    (bfd *, const asection *);
 
   /* These functions tell elf-eh-frame whether to attempt to turn
      absolute or lsda encodings into pc-relative ones.  The default
@@ -1437,11 +1448,11 @@ struct elf_backend_data
                                                  unsigned int);
 
   /* Merge GNU properties.  Return TRUE if property is updated.  */
-  bfd_boolean (*merge_gnu_properties) (bfd *, elf_property *,
-                                      elf_property *);
+  bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *,
+                                      elf_property *, elf_property *);
 
   /* Set up GNU properties.  */
-  void (*setup_gnu_properties) (struct bfd_link_info *);
+  bfd *(*setup_gnu_properties) (struct bfd_link_info *);
 
   /* Encoding used for compact EH tables.  */
   int (*compact_eh_encoding) (struct bfd_link_info *);
@@ -1987,7 +1998,7 @@ extern void bfd_elf_print_symbol
   (bfd *, void *, asymbol *, bfd_print_symbol_type);
 
 extern unsigned int _bfd_elf_eh_frame_address_size
-  (bfd *, asection *);
+  (bfd *, const asection *);
 extern bfd_byte _bfd_elf_encode_eh_address
   (bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset,
    asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded);
@@ -2262,6 +2273,9 @@ extern bfd_reloc_status_type bfd_elf_perform_complex_relocation
 extern bfd_boolean _bfd_elf_setup_sections
   (bfd *);
 
+extern struct bfd_link_hash_entry *bfd_elf_define_start_stop
+  (struct bfd_link_info *, const char *, asection *);
+
 extern void _bfd_elf_post_process_headers (bfd * , struct bfd_link_info *);
 
 extern const bfd_target *bfd_elf32_object_p
@@ -2445,9 +2459,6 @@ extern bfd_boolean bfd_elf_gc_common_finalize_got_offsets
 extern bfd_boolean bfd_elf_gc_common_final_link
   (bfd *, struct bfd_link_info *);
 
-extern asection *_bfd_elf_is_start_stop
-  (const struct bfd_link_info *, struct elf_link_hash_entry *);
-
 extern bfd_boolean bfd_elf_reloc_symbol_deleted_p
   (bfd_vma, void *);
 
@@ -2607,7 +2618,7 @@ extern bfd_boolean _bfd_elf_parse_gnu_properties
   (bfd *, Elf_Internal_Note *);
 extern elf_property * _bfd_elf_get_property
   (bfd *, unsigned int, unsigned int);
-extern void _bfd_elf_link_setup_gnu_properties
+extern bfd *_bfd_elf_link_setup_gnu_properties
   (struct bfd_link_info *);
 
 /* The linker may need to keep track of the number of relocs that it
@@ -2767,7 +2778,7 @@ extern asection _bfd_elf_large_com_section;
            memmove (rel, rel + count,                                  \
                     (relend - rel - count) * sizeof (*rel));           \
                                                                        \
-           input_section->reloc_count--;                               \
+           input_section->reloc_count -= count;                        \
            relend -= count;                                            \
            rel--;                                                      \
            continue;                                                   \