xc16x: Add elf32_xc16x_rtype_to_howto

Add elf32_xc16x_rtype_to_howto to get reloc_howto_type pointer from
ELF32_R_TYPE.

	* elf32-xc16x.c (elf32_xc16x_rtype_to_howto): New function.
	(elf32_xc16x_relocate_section): Call elf32_xc16x_rtype_to_howto
	instead of xc16x_reloc_type_lookup to get reloc_howto_type.
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index aa8be34..b88fe7e 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2018-12-11  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* elf32-xc16x.c (elf32_xc16x_rtype_to_howto): New function.
+	(elf32_xc16x_relocate_section): Call elf32_xc16x_rtype_to_howto
+	instead of xc16x_reloc_type_lookup to get reloc_howto_type.
+
 2018-12-07  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR ld/23958
diff --git a/bfd/elf32-xc16x.c b/bfd/elf32-xc16x.c
index 66fe33d..b94cadf 100644
--- a/bfd/elf32-xc16x.c
+++ b/bfd/elf32-xc16x.c
@@ -220,6 +220,15 @@
   return NULL;
 }
 
+static reloc_howto_type *
+elf32_xc16x_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, unsigned r_type)
+{
+  if (r_type < ARRAY_SIZE (xc16x_elf_howto_table))
+    return & xc16x_elf_howto_table[r_type];
+
+  return NULL;
+}
+
 /* For a particular operand this function is
    called to finalise the type of relocation.  */
 
@@ -388,7 +397,7 @@
 	     or sections discarded by a linker script, we just want the
 	     section contents cleared.  Avoid any special processing.  */
 	  reloc_howto_type *howto;
-	  howto = xc16x_reloc_type_lookup (input_bfd, r_type);
+	  howto = elf32_xc16x_rtype_to_howto (input_bfd, r_type);
 	  RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
 					   rel, 1, relend, howto, 0, contents);
 	}