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

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 98134161f7335c3c253e04593fefac0faaf275a4..da0eb72e1cb54df2b720e5000bcf5ae80476ba6d 100644 (file)
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -155,6 +155,8 @@ struct elf_link_hash_entry
   unsigned int hidden : 1;
   /* Symbol was forced to local scope due to a version script file.  */
   unsigned int forced_local : 1;
+  /* Symbol was forced to be dynamic due to a version script file.  */
+  unsigned int dynamic : 1;
   /* Symbol was marked during garbage collection.  */
   unsigned int mark : 1;
   /* Symbol is referenced by a non-GOT/non-PLT relocation.  This is
@@ -466,7 +468,7 @@ struct elf_size_info {
     (*write_shdrs_and_ehdr) (bfd *);
   void (*write_relocs)
     (bfd *, asection *, void *);
-  void (*swap_symbol_in)
+  bfd_boolean (*swap_symbol_in)
     (bfd *, const void *, const void *, Elf_Internal_Sym *);
   void (*swap_symbol_out)
     (bfd *, const Elf_Internal_Sym *, void *, void *);
@@ -836,6 +838,11 @@ struct elf_backend_data
   bfd_boolean (*elf_backend_modify_segment_map)
     (bfd *, struct bfd_link_info *);
 
+  /* This function is called to modify program headers just before
+     they are written.  */
+  bfd_boolean (*elf_backend_modify_program_headers)
+    (bfd *, struct bfd_link_info *);
+
   /* This function is called during section garbage collection to
      mark sections that define global symbols.  */
   bfd_boolean (*gc_mark_dynamic_ref)
@@ -1033,6 +1040,9 @@ struct elf_backend_data
                               bfd_boolean *, bfd_boolean *,
                               bfd *, asection **);
 
+  /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
+  bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *);
+
   /* Used to handle bad SHF_LINK_ORDER input.  */
   bfd_error_handler_type link_order_error_handler;
 
@@ -1476,6 +1486,8 @@ extern bfd_vma _bfd_elf_section_offset
 
 extern unsigned long bfd_elf_hash
   (const char *);
+extern unsigned long bfd_elf_gnu_hash
+  (const char *);
 
 extern bfd_reloc_status_type bfd_elf_generic_reloc
   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
@@ -1646,6 +1658,8 @@ extern bfd_boolean _bfd_elf_merge_symbol
    struct elf_link_hash_entry **, bfd_boolean *,
    bfd_boolean *, bfd_boolean *, bfd_boolean *);
 
+extern bfd_boolean _bfd_elf_hash_symbol (struct elf_link_hash_entry *);
+
 extern bfd_boolean _bfd_elf_add_default_symbol
   (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
    const char *, Elf_Internal_Sym *, asection **, bfd_vma *,
@@ -1730,7 +1744,7 @@ extern int bfd_elf32_core_file_failing_signal
 extern bfd_boolean bfd_elf32_core_file_matches_executable_p
   (bfd *, bfd *);
 
-extern void bfd_elf32_swap_symbol_in
+extern bfd_boolean bfd_elf32_swap_symbol_in
   (bfd *, const void *, const void *, Elf_Internal_Sym *);
 extern void bfd_elf32_swap_symbol_out
   (bfd *, const Elf_Internal_Sym *, void *, void *);
@@ -1772,7 +1786,7 @@ extern int bfd_elf64_core_file_failing_signal
 extern bfd_boolean bfd_elf64_core_file_matches_executable_p
   (bfd *, bfd *);
 
-extern void bfd_elf64_swap_symbol_in
+extern bfd_boolean bfd_elf64_swap_symbol_in
   (bfd *, const void *, const void *, Elf_Internal_Sym *);
 extern void bfd_elf64_swap_symbol_out
   (bfd *, const Elf_Internal_Sym *, void *, void *);
@@ -1816,6 +1830,9 @@ extern bfd_boolean bfd_elf_link_record_dynamic_symbol
 extern int bfd_elf_link_record_local_dynamic_symbol
   (struct bfd_link_info *, bfd *, long);
 
+extern void bfd_elf_link_mark_dynamic_symbol
+  (struct bfd_link_info *, struct elf_link_hash_entry *);
+
 extern bfd_boolean _bfd_elf_close_and_cleanup
   (bfd *);
 
@@ -1968,4 +1985,9 @@ extern bfd_boolean _sh_elf_set_mach_from_flags
     }                                                                  \
   while (0)
 
+/* Will a symbol be bound to the the definition within the shared
+   library, if any.  */
+#define SYMBOLIC_BIND(INFO, H) \
+    ((INFO)->symbolic || ((INFO)->dynamic && !(H)->dynamic))
+
 #endif /* _LIBELF_H_ */