From 96431d57723de569bd75407cf7252699b491cbbe Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Sat, 11 Feb 2012 00:15:54 +0000
Subject: [PATCH] runtime: Tweak __go_can_recover for SPARC.

From-SVN: r184117
---
 libgo/runtime/go-recover.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libgo/runtime/go-recover.c b/libgo/runtime/go-recover.c
index 7101d518ade..d6403e00d39 100644
--- a/libgo/runtime/go-recover.c
+++ b/libgo/runtime/go-recover.c
@@ -43,6 +43,14 @@ __go_can_recover (const void* retaddr)
      such as an instruction to adjust the stack pointer.  */
 
   ret = (const char *) retaddr;
+
+#ifdef __sparc__
+  /* On SPARC the address we get, from __builtin_return_address, is
+     the address of the call instruction.  Adjust forward, also
+     skipping the delayed instruction following the call.  */
+  ret += 8;
+#endif
+
   dret = (const char *) d->__retaddr;
   return ret <= dret && ret + 16 >= dret;
 }