diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index c86fbf7d9..708b860ff 100644
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,9 @@
+2013-01-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* i386.h (R_386_SIZE32): Fill it.
+	* x86-64.h (R_X86_64_SIZE32): Likewise.
+	(R_X86_64_SIZE64): Likewise.
+
 2013-01-10  Will Newton <will.newton@imgtec.com>
 
 	* common.h: Fix case of "Meta".
diff --git a/include/elf/i386.h b/include/elf/i386.h
index a12225faa..c4750925f 100644
--- a/include/elf/i386.h
+++ b/include/elf/i386.h
@@ -62,7 +62,7 @@ START_RELOC_NUMBERS (elf_i386_reloc_type)
      RELOC_NUMBER (R_386_TLS_DTPMOD32, 35)
      RELOC_NUMBER (R_386_TLS_DTPOFF32, 36)
      RELOC_NUMBER (R_386_TLS_TPOFF32,  37)
-/* 38 */
+     RELOC_NUMBER (R_386_SIZE32,       38) /* 32-bit symbol size */
      RELOC_NUMBER (R_386_TLS_GOTDESC,  39)
      RELOC_NUMBER (R_386_TLS_DESC_CALL,40)
      RELOC_NUMBER (R_386_TLS_DESC,     41)
diff --git a/include/elf/x86-64.h b/include/elf/x86-64.h
index 9022f8482..0ce92cd54 100644
--- a/include/elf/x86-64.h
+++ b/include/elf/x86-64.h
@@ -63,7 +63,8 @@ START_RELOC_NUMBERS (elf_x86_64_reloc_type)
      						 that PLT entry is needed */
      RELOC_NUMBER (R_X86_64_PLTOFF64, 31)     /* 64 bit GOT relative offset
      						 to PLT entry */
-     /* 32 .. 33 */
+     RELOC_NUMBER (R_X86_64_SIZE32,   32)     /* 32-bit symbol size */
+     RELOC_NUMBER (R_X86_64_SIZE64,   33)     /* 64-bit symbol size */
      RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 34)
 					      /* 32 bit signed pc relative
 						 offset to TLS descriptor