Don't discard relocs against __ehdr_start

__ehdr_start will be defined by assign_file_positions_for_non_load_sections
later.

	PR ld/16428
	* elf32-i386.c (elf_i386_allocate_dynrelocs): Don't discard relocs
	against __ehdr_start.
	* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Likewise.

bfd/ChangeLog

@@ -1,3 +1,10 @@
+2014-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR ld/16428
+	* elf32-i386.c (elf_i386_allocate_dynrelocs): Don't discard relocs
+	against __ehdr_start.
+	* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Likewise.
+
 2014-01-14  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* elf32-i386.c (elf_i386_allocate_dynrelocs): Revert the last

bfd/elf32-i386.c

@@ -2390,9 +2390,12 @@ elf_i386_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
 	}
 
       /* Also discard relocs on undefined weak syms with non-default
-    	 visibility.  */
+    	 visibility.   Don't discard relocs against __ehdr_start which
+	 will be defined by assign_file_positions_for_non_load_sections
+	 later.  */
       if (eh->dyn_relocs != NULL
-	  && h->root.type == bfd_link_hash_undefweak)
+	  && h->root.type == bfd_link_hash_undefweak
+	  && strcmp (h->root.root.string, "__ehdr_start") != 0)
 	{
 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
 	    eh->dyn_relocs = NULL;

bfd/elf64-x86-64.c

@@ -2473,9 +2473,12 @@ elf_x86_64_allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
 	}
 
       /* Also discard relocs on undefined weak syms with non-default
-	 visibility.  */
+    	 visibility.   Don't discard relocs against __ehdr_start which
+	 will be defined by assign_file_positions_for_non_load_sections
+	 later.  */
       if (eh->dyn_relocs != NULL
-	  && h->root.type == bfd_link_hash_undefweak)
+	  && h->root.type == bfd_link_hash_undefweak
+	  && strcmp (h->root.root.string, "__ehdr_start") != 0)
 	{
 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
 	    eh->dyn_relocs = NULL;