dwarf2out.c (dwarf2out_frame_init): Test value of DWARF2_UNWIND_INFO.

        * dwarf2out.c (dwarf2out_frame_init): Test value of DWARF2_UNWIND_INFO.
        * mips/sni-svr4.h: Define DWARF2_UNWIND_INFO as 0.

From-SVN: r17499

gcc/ChangeLog

+Tue Jan 27 00:26:50 1998  John Carr  <jfc@mit.edu>
+
+	* dwarf2out.c (dwarf2out_frame_init): Test value of DWARF2_UNWIND_INFO.
+	* mips/sni-svr4.h: Define DWARF2_UNWIND_INFO as 0.
+
 Tue Jan 27 00:07:02 1998  Jeffrey A Law  (law@cygnus.com)
 
         * emit-rtl.c (gen_lowpart_common): Handle more case where converting

gcc/config/mips/sni-svr4.h

@@ -95,3 +95,5 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #undef SDB_DEBUGGING_INFO
 #undef MIPS_DEBUGGING_INFO
 #undef PREFERRED_DEBUGGING_TYPE
+
+#define DWARF2_UNWIND_INFO 0

gcc/dwarf2out.c

@@ -1877,9 +1877,12 @@ dwarf2out_frame_init ()
      sake of lookup_cfa.  */
 
 #ifdef DWARF2_UNWIND_INFO
-  /* On entry, the Canonical Frame Address is at SP.  */
-  dwarf2out_def_cfa (NULL, STACK_POINTER_REGNUM, INCOMING_FRAME_SP_OFFSET);
-  initial_return_save (INCOMING_RETURN_ADDR_RTX);
+  if (DWARF2_UNWIND_INFO)
+    {
+      /* On entry, the Canonical Frame Address is at SP.  */
+      dwarf2out_def_cfa (NULL, STACK_POINTER_REGNUM, INCOMING_FRAME_SP_OFFSET);
+      initial_return_save (INCOMING_RETURN_ADDR_RTX);
+    }
 #endif
 }