bfd/

	* elf64-ppc.c (struct ppc_link_hash_table): Add dot_toc_dot.
	(ppc64_elf_size_stubs): Lookup ".TOC.".
	(ppc64_elf_relocate_section): Resolve special symbol ".TOC.".
gas/
	* config/tc-ppc.c (ppc_elf_adjust_symtab): New function, split out..
	(ppc_frob_file_before_adjust): ..from here.
	(md_apply_fix): Set BSF_KEEP on .TOC. if not @tocbase.
	* config/tc-ppc.h (ppc_elf_adjust_symtab): Declare.
	(tc_adjust_symtab): Define.

3 files changed, 43 insertions, 5 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 474b617..9ad252f 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,13 @@
 2012-11-06  Alan Modra  <amodra@gmail.com>
 
+	* config/tc-ppc.c (ppc_elf_adjust_symtab): New function, split out..
+	(ppc_frob_file_before_adjust): ..from here.
+	(md_apply_fix): Set BSF_KEEP on .TOC. if not @tocbase.
+	* config/tc-ppc.h (ppc_elf_adjust_symtab): Declare.
+	(tc_adjust_symtab): Define.
+
+2012-11-06  Alan Modra  <amodra@gmail.com>
+
 	* config/tc-ppc.c (md_apply_fix): Fix xcoff build breakage from
 	last patch.
 
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index c72a863..1b12f57 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -2323,11 +2323,28 @@ ppc_frob_file_before_adjust (void)
       && toc_reloc_types != has_large_toc_reloc
       && bfd_section_size (stdoutput, toc) > 0x10000)
     as_warn (_("TOC section size exceeds 64k"));
+}
+
+/* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
+   emitted.  Other uses of .TOC. will cause the symbol to be marked
+   with BSF_KEEP in md_apply_fix.  */
 
-  /* Don't emit .TOC. symbol.  */
-  symp = symbol_find (".TOC.");
-  if (symp != NULL)
-    symbol_remove (symp, &symbol_rootP, &symbol_lastP);
+void
+ppc_elf_adjust_symtab (void)
+{
+  if (ppc_obj64)
+    {
+      symbolS *symp;
+      symp = symbol_find (".TOC.");
+      if (symp != NULL)
+	{
+	  asymbol *bsym = symbol_get_bfdsym (symp);
+	  if ((bsym->flags & BSF_KEEP) == 0)
+	    symbol_remove (symp, &symbol_rootP, &symbol_lastP);
+	  else
+	    S_SET_WEAK (symp);
+	}
+    }
 }
 #endif /* OBJ_ELF */
 
@@ -6850,7 +6867,17 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
      then the section contents are immaterial, so don't warn if they
      happen to overflow.  Leave such warnings to ld.  */
   if (!fixP->fx_done)
-    fixP->fx_no_overflow = 1;
+    {
+      fixP->fx_no_overflow = 1;
+
+      /* Arrange to emit .TOC. as a normal symbol if used in anything
+	 but .TOC.@tocbase.  */
+      if (ppc_obj64
+	  && fixP->fx_r_type != BFD_RELOC_PPC64_TOC
+	  && fixP->fx_addsy != NULL
+	  && strcmp (S_GET_NAME (fixP->fx_addsy), ".TOC.") == 0)
+	symbol_get_bfdsym (fixP->fx_addsy)->flags |= BSF_KEEP;
+    }
 #else
   if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
     fixP->fx_addnumber = 0;
diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index e053c9c..3dd3f81 100644
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -235,6 +235,9 @@ extern int ppc_fix_adjustable (struct fix *);
 #define tc_frob_file_before_adjust ppc_frob_file_before_adjust
 extern void ppc_frob_file_before_adjust (void);
 
+#define tc_adjust_symtab() ppc_elf_adjust_symtab ()
+extern void ppc_elf_adjust_symtab (void);
+
 #endif /* OBJ_ELF */
 
 #if defined (OBJ_ELF) || defined (OBJ_XCOFF)