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-rw-r--r--gcc/libgcc2.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c
index b8891dab631..39598efb038 100644
--- a/gcc/libgcc2.c
+++ b/gcc/libgcc2.c
@@ -2298,7 +2298,25 @@ __unwind_function(void *ptr)
asm("# br");
asm("mtctr 3;bctr # b 3");
}
-#endif
+#endif /* rs6000 */
+
+#if #machine(powerpc)
+__unwind_function(void *ptr)
+{
+ asm("mr 31,1");
+ asm("lwz 1,0(1)");
+ asm("lwz 31,-4(1)");
+ asm("# br");
+
+ asm("mr 31,1");
+ asm("lwz 1,0(1)");
+ /* use 31 as a scratch register to restore the link register. */
+ asm("lwz 31, 8(1);mtlr 31 # l lr,8(1)");
+ asm("lwz 31,-4(1)");
+ asm("# br");
+ asm("mtctr 3;bctr # b 3");
+}
+#endif /* powerpc */
#endif /* L_eh */
#ifdef L_pure