diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index b228690fa7..b680829d91 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2004-10-28  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* elfxx-ia64.c (elfNN_ia64_relocate_section): Handle weak
+	undefined symbols for R_IA64_SECREL32MSB, R_IA64_SECREL32LSB,
+	R_IA64_SECREL64MSB and R_IA64_SECREL64LSB.
+
 2004-10-28  Kaz Kojima  <kkojima@rr.iij4u.or.jp>
 
 	* elf32-sh.c (tpoff): Take alignment into account.
diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index a7d72bfa42..9ae95d3238 100644
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -4340,7 +4340,8 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
 	case R_IA64_SECREL64LSB:
 	  /* Make output-section relative to section where the symbol
 	     is defined. PR 475  */
-	  value -= sym_sec->output_section->vma;
+	  if (sym_sec)
+	    value -= sym_sec->output_section->vma;
 	  r = elfNN_ia64_install_value (hit_addr, value, r_type);
 	  break;