From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Mon, 14 Oct 2013 21:02:52 +0000 (+0000)
Subject: runtime: Don't clobber saved context when catching signal.
X-Git-Tag: releases/gcc-4.9.0~3483
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8088e1beb276a0ba33ba2bf499899450d86e9f03;p=thirdparty%2Fgcc.git

runtime: Don't clobber saved context when catching signal.

From-SVN: r203577
---

diff --git a/libgo/runtime/go-signal.c b/libgo/runtime/go-signal.c
index 9771b71cfcf6..af99ddefeb1f 100644
--- a/libgo/runtime/go-signal.c
+++ b/libgo/runtime/go-signal.c
@@ -399,6 +399,7 @@ sig_tramp_info (int sig, Siginfo *info, void *context)
 {
   G *gp;
   M *mp;
+  void *stack_context[10];
 
   /* We are now running on the stack registered via sigaltstack.
      (Actually there is a small span of time between runtime_siginit
@@ -409,7 +410,7 @@ sig_tramp_info (int sig, Siginfo *info, void *context)
   if (gp != NULL)
     {
 #ifdef USING_SPLIT_STACK
-      __splitstack_getcontext (&gp->stack_context[0]);
+      __splitstack_getcontext (&stack_context[0]);
 #endif
     }
 
@@ -432,7 +433,7 @@ sig_tramp_info (int sig, Siginfo *info, void *context)
   if (gp != NULL)
     {
 #ifdef USING_SPLIT_STACK
-      __splitstack_setcontext (&gp->stack_context[0]);
+      __splitstack_setcontext (&stack_context[0]);
 #endif
     }
 }