sparc.h (ASM_OUTPUT_MI_THUNK): Move %o7 through %g1 instead of save+restore.

* sparc.h (ASM_OUTPUT_MI_THUNK): Move %o7 through %g1 instead of
save+restore.  Fix pic+big_offset delay slot.  Use "pic" case for
unix always, since we want to be able to thunk to functions in a
shared library from an application.

From-SVN: r17262

gcc/ChangeLog

+Tue Dec 30 00:04:49 1997  Richard Henderson  <rth@cygnus.com>
+
+	* sparc.h (ASM_OUTPUT_MI_THUNK): Move %o7 through %g1 instead of
+	save+restore.  Fix pic+big_offset delay slot.  Use "pic" case for
+	unix always, since we want to be able to thunk to functions in a
+	shared library from an application.
+
 Mon Dec 29 14:37:31 1997  Ian Lance Taylor  <ian@cygnus.com>
 
 	* mips/t-ecoff (CROSS_LIBGCC1): Define to libgcc1-asm.a.

gcc/config/sparc/sparc.h

@@ -3017,11 +3017,15 @@ do {									\
   int big_delta = (DELTA) >= 4096 || (DELTA) < -4096;			\
   if (big_delta)							\
     fprintf (FILE, "\tset %d,%%g1\n\tadd %%o0,%%g1,%%o0\n", (DELTA));	\
-  if (flag_pic)								\
+  /* Don't use the jmp solution unless we know the target is local to	\
+     the application or shared object.  				\
+     XXX: Wimp out and don't actually check anything except if this is	\
+     an embedded target where we assume there are no shared libs.  */	\
+  if (!TARGET_CM_EMBMEDANY || flag_pic)					\
     {									\
       if (! big_delta)							\
 	fprintf (FILE, "\tadd %%o0,%d,%%o0\n", DELTA);			\
-      fprintf (FILE, "\tsave %%sp,-112,%%sp\n");			\
+      fprintf (FILE, "\tmov %%o7,%%g1\n");				\
       fprintf (FILE, "\tcall ");					\
       assemble_name							\
 	(FILE, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (FUNCTION)));	\
@@ -3044,10 +3048,10 @@ do {									\
 	(FILE, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (FUNCTION)));	\
       fprintf (FILE, ")\n");						\
     }									\
-  if (big_delta)							\
+  if (!TARGET_CM_EMBMEDANY || flag_pic)					\
+    fprintf (FILE, "\tmov %%g1,%%o7\n");				\
+  else if (big_delta)							\
     fprintf (FILE, "\tnop\n");						\
-  else if (flag_pic)							\
-    fprintf (FILE, "\trestore\n");					\
   else									\
     fprintf (FILE, "\tadd %%o0,%d,%%o0\n", DELTA);			\
 } while (0)