(FIXED_R13): Define to be 1.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@9864 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
index 7209f38..a785ff3 100644 (file)
--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
@@ -89,6 +89,12 @@ do {                                                                 \
 
 #include "rs6000/powerpc.h"
 
+/* System V.4 uses register 13 as a pointer to the small data area,
+   so it is not available to the normal user.  */
+
+#undef FIXED_R13
+#define FIXED_R13 1
+
 /* Override default big endianism */
 #undef  BYTES_BIG_ENDIAN
 #undef  WORDS_BIG_ENDIAN