* elf-bfd.h (struct elf_backend_data): Remove as_needed_cleanup.

	Add notice_as_needed.
	* elf64-ppc.c (elf_backend_as_needed_cleanup): Don't define.
	(elf_backend_notice_as_needed): Define.
	(ppc64_elf_as_needed_cleanup): Rename and adjust..
	(ppc64_elf_notice_as_needed): ..to this.
	* elflink.c (_bfd_elf_notice_as_needed): New function, extracted..
	(elf_link_add_object_symbols): ..from here.
	* elfxx-target.h (elf_backend_as_needed_cleanup): Don't define.
	(elf_backend_notice_as_needed): Define..
	(elfNN_bed): ..and use here.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 815503b..a73dd95 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,17 @@
+2013-08-27  Alan Modra  <amodra@gmail.com>
+
+       * elf-bfd.h (struct elf_backend_data): Remove as_needed_cleanup.
+       Add notice_as_needed.
+       * elf64-ppc.c (elf_backend_as_needed_cleanup): Don't define.
+       (elf_backend_notice_as_needed): Define.
+       (ppc64_elf_as_needed_cleanup): Rename and adjust..
+       (ppc64_elf_notice_as_needed): ..to this.
+       * elflink.c (_bfd_elf_notice_as_needed): New function, extracted..
+       (elf_link_add_object_symbols): ..from here.
+       * elfxx-target.h (elf_backend_as_needed_cleanup): Don't define.
+       (elf_backend_notice_as_needed): Define..
+       (elfNN_bed): ..and use here.
+
 2013-08-26  Roland McGrath  <mcgrathr@google.com>
 
        * archures.c (bfd_mach_i386_nacl, bfd_mach_i386_i386_nacl): New macros.

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 4a67d02..add80b3 100644 (file)
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -881,12 +881,12 @@ struct elf_backend_data
   bfd_boolean (*check_directives)
     (bfd *abfd, struct bfd_link_info *info);
 
-  /* The AS_NEEDED_CLEANUP function is called once per --as-needed
-     input file that was not needed by the add_symbols phase of the
-     ELF backend linker.  The function must undo any target specific
-     changes in the symbol hash table.  */
-  bfd_boolean (*as_needed_cleanup)
-    (bfd *abfd, struct bfd_link_info *info);
+  /* The NOTICE_AS_NEEDED function is called as the linker is about to
+     handle an as-needed lib (ACT = notice_as_needed), and after the
+     linker has decided to keep the lib (ACT = notice_needed) or when
+     the lib is not needed (ACT = notice_not_needed).  */
+  bfd_boolean (*notice_as_needed)
+    (bfd *abfd, struct bfd_link_info *info, enum notice_asneeded_action act);
 
   /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
      linker for every symbol which is defined by a dynamic object and
@@ -2139,6 +2139,8 @@ extern bfd_boolean _bfd_elf_default_relocs_compatible
 
 extern bfd_boolean _bfd_elf_relocs_compatible
   (const bfd_target *, const bfd_target *);
+extern bfd_boolean _bfd_elf_notice_as_needed
+  (bfd *, struct bfd_link_info *, enum notice_asneeded_action);
 
 extern struct elf_link_hash_entry *_bfd_elf_archive_symbol_lookup
   (bfd *, struct bfd_link_info *, const char *);

diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 349f9b3..3df01f6 100644 (file)
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -96,7 +96,7 @@ static bfd_vma opd_entry_value
 #define elf_backend_copy_indirect_symbol      ppc64_elf_copy_indirect_symbol
 #define elf_backend_add_symbol_hook          ppc64_elf_add_symbol_hook
 #define elf_backend_check_directives         ppc64_elf_process_dot_syms
-#define elf_backend_as_needed_cleanup        ppc64_elf_as_needed_cleanup
+#define elf_backend_notice_as_needed         ppc64_elf_notice_as_needed
 #define elf_backend_archive_symbol_lookup     ppc64_elf_archive_symbol_lookup
 #define elf_backend_check_relocs             ppc64_elf_check_relocs
 #define elf_backend_gc_keep                  ppc64_elf_gc_keep
@@ -4806,16 +4806,20 @@ ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info)
    not to be needed.  */
 
 static bfd_boolean
-ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED,
-                            struct bfd_link_info *info)
+ppc64_elf_notice_as_needed (bfd *ibfd,
+                           struct bfd_link_info *info,
+                           enum notice_asneeded_action act)
 {
-  struct ppc_link_hash_table *htab = ppc_hash_table (info);
+  if (act == notice_not_needed)
+    {
+      struct ppc_link_hash_table *htab = ppc_hash_table (info);
 
-  if (htab == NULL)
-    return FALSE;
+      if (htab == NULL)
+       return FALSE;
 
-  htab->dot_syms = NULL;
-  return TRUE;
+      htab->dot_syms = NULL;
+    }
+  return _bfd_elf_notice_as_needed (ibfd, info, act);
 }
 
 /* If --just-symbols against a final linked binary, then assume we need

diff --git a/bfd/elflink.c b/bfd/elflink.c
index c22f7e8..99b7ca1 100644 (file)
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -3309,6 +3309,18 @@ _bfd_elf_relocs_compatible (const bfd_target *input,
   return ibed->relocs_compatible == obed->relocs_compatible;
 }
 
+/* Make a special call to the linker "notice" function to tell it that
+   we are about to handle an as-needed lib, or have finished
+   processing the lib.  */ 
+
+bfd_boolean
+_bfd_elf_notice_as_needed (bfd *ibfd,
+                          struct bfd_link_info *info,
+                          enum notice_asneeded_action act)
+{
+  return (*info->callbacks->notice) (info, NULL, ibfd, NULL, act, 0, NULL);
+}
+
 /* Add symbols from an ELF object file to the linker hash table.  */
 
 static bfd_boolean
@@ -3766,8 +3778,7 @@ error_free_dyn:
 
       /* Make a special call to the linker "notice" function to
         tell it that we are about to handle an as-needed lib.  */
-      if (!(*info->callbacks->notice) (info, NULL, abfd, NULL,
-                                      notice_as_needed, 0, NULL))
+      if (!(*bed->notice_as_needed) (abfd, info, notice_as_needed))
        goto error_free_vers;
 
       /* Clone the symbol table.  Remember some pointers into the
@@ -4461,8 +4472,6 @@ error_free_dyn:
       unsigned int i;
 
       /* Restore the symbol table.  */
-      if (bed->as_needed_cleanup)
-       (*bed->as_needed_cleanup) (abfd, info);
       old_ent = (char *) old_tab + tabsize;
       memset (elf_sym_hashes (abfd), 0,
              extsymcount * sizeof (struct elf_link_hash_entry *));
@@ -4524,8 +4533,7 @@ error_free_dyn:
 
       /* Make a special call to the linker "notice" function to
         tell it that symbols added for crefs may need to be removed.  */
-      if (!(*info->callbacks->notice) (info, NULL, abfd, NULL,
-                                      notice_not_needed, 0, NULL))
+      if (!(*bed->notice_as_needed) (abfd, info, notice_not_needed))
        goto error_free_vers;
 
       free (old_tab);
@@ -4538,8 +4546,7 @@ error_free_dyn:
 
   if (old_tab != NULL)
     {
-      if (!(*info->callbacks->notice) (info, NULL, abfd, NULL,
-                                      notice_needed, 0, NULL))
+      if (!(*bed->notice_as_needed) (abfd, info, notice_needed))
        goto error_free_vers;
       free (old_tab);
       old_tab = NULL;

diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h
index 86c9b1b..d42ce26 100644 (file)
--- a/bfd/elfxx-target.h
+++ b/bfd/elfxx-target.h
@@ -424,8 +424,8 @@
 #ifndef elf_backend_check_directives
 #define elf_backend_check_directives   0
 #endif
-#ifndef elf_backend_as_needed_cleanup
-#define elf_backend_as_needed_cleanup  0
+#ifndef elf_backend_notice_as_needed
+#define elf_backend_notice_as_needed   _bfd_elf_notice_as_needed
 #endif
 #ifndef elf_backend_adjust_dynamic_symbol
 #define elf_backend_adjust_dynamic_symbol 0
@@ -705,7 +705,7 @@ static struct elf_backend_data elfNN_bed =
   elf_backend_relocs_compatible,
   elf_backend_check_relocs,
   elf_backend_check_directives,
-  elf_backend_as_needed_cleanup,
+  elf_backend_notice_as_needed,
   elf_backend_adjust_dynamic_symbol,
   elf_backend_always_size_sections,
   elf_backend_size_dynamic_sections,