rl78.opt (mrelax): New.

* config/rl78/rl78.opt (mrelax): New.
* config/rl78/rl78.h (ASM_SPEC): New, pass on -mrelax to gas.
* config/rl78/rl78.h (LINK_SPEC): New, pass on -mrelax to ld.

From-SVN: r202543

gcc/ChangeLog

 2013-09-12  DJ Delorie  <dj@redhat.com>
 
+	* config/rl78/rl78.opt (mrelax): New.
+	* config/rl78/rl78.h (ASM_SPEC): New, pass on -mrelax to gas.
+	* config/rl78/rl78.h (LINK_SPEC): New, pass on -mrelax to ld.
+
 	* config/rl78/rl78.c (rl78_expand_prologue): Use AX to copy
 	between SP and FP.
 	(rl78_expand_epilogue): Likewise.

gcc/config/rl78/rl78.h

@@ -41,6 +41,16 @@
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
 
+#undef  ASM_SPEC
+#define ASM_SPEC "\
+%{mrelax:-relax} \
+"
+
+#undef  LINK_SPEC
+#define LINK_SPEC "\
+%{mrelax:-relax} \
+"
+
 #undef  LIB_SPEC
 #define LIB_SPEC "					\
 --start-group						\

gcc/config/rl78/rl78.opt

@@ -41,3 +41,7 @@ Enum(rl78_mul_types) String(rl78) Value(MUL_RL78)
 
 EnumValue
 Enum(rl78_mul_types) String(g13) Value(MUL_G13)
+
+mrelax
+Target
+Enable assembler and linker relaxation.