PATCH: PR ld/10433: Latest ld fails to link ldconfig properly

[H.J. Lu]

Hi,

A STT_GNU_IFUNC symbol goes through PLT only if it is ever referenced.
I checked in this patch to fix it.


H.J.
--
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 6448)
+++ ChangeLog	(working copy)
@@ -1,3 +1,9 @@
+2009-07-22  H.J. Lu  <hongjiu.lu@intel.com>
+
+	 PR ld/10433
+	 * elflink.c (elf_link_output_extsym): Special case ifunc syms
+	 when ref_regular, not def_regular.
+
 2009-07-21  H.J. Lu  <hongjiu.lu@intel.com>
 
 	 PR ld/10426
Index: elflink.c
===================================================================
--- elflink.c	(revision 6448)
+++ elflink.c	(working copy)
@@ -8660,9 +8660,10 @@ elf_link_output_extsym (struct elf_link_
      and also to finish up anything that needs to be done for this
      symbol.  FIXME: Not calling elf_backend_finish_dynamic_symbol for
      forced local syms when non-shared is due to a historical quirk.
-     STT_GNU_IFUNC symbol must go through PLT.  */
+     STT_GNU_IFUNC symbol must go through PLT only if it is ever
+     referenced.  */
   if ((h->type == STT_GNU_IFUNC
-       && h->def_regular
+       && h->ref_regular
        && !finfo->info->relocatable)
       || ((h->dynindx != -1
 	   || h->forced_local)