[src/trunk]: src/sys/arch/usermode/usermode Initialise the alternative signal...

[reinoud <reinoud%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5f7b010dec82
branches:  trunk
changeset: 769269:5f7b010dec82
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Mon Sep 05 11:56:52 2011 +0000

description:
Initialise the alternative signal stack before referring to it

diffstat:

 sys/arch/usermode/usermode/trap.c |  20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)

diffs (48 lines):

diff -r cbb327b32acd -r 5f7b010dec82 sys/arch/usermode/usermode/trap.c
--- a/sys/arch/usermode/usermode/trap.c Mon Sep 05 11:25:29 2011 +0000
+++ b/sys/arch/usermode/usermode/trap.c Mon Sep 05 11:56:52 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: trap.c,v 1.24 2011/09/05 11:10:36 reinoud Exp $ */
+/* $NetBSD: trap.c,v 1.25 2011/09/05 11:56:52 reinoud Exp $ */
 
 /*-
  * Copyright (c) 2011 Reinoud Zandijk <reinoud%netbsd.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.24 2011/09/05 11:10:36 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.25 2011/09/05 11:56:52 reinoud Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -70,6 +70,14 @@
 {
        static struct sigaction sa;
 
+       if ((sigstk.ss_sp = thunk_malloc(SIGSTKSZ)) == NULL)
+               panic("can't allocate signal stack space\n");
+       sigstk.ss_size  = SIGSTKSZ;
+       sigstk.ss_flags = 0;
+       if (thunk_sigaltstack(&sigstk, 0) < 0)
+               panic("can't set alternate stacksize : %d",
+                   thunk_geterrno());
+
        sigemptyset(&sa.sa_mask);
        sa.sa_flags = SA_RESTART | SA_SIGINFO | SA_ONSTACK;
        sa.sa_sigaction = mem_access_handler;
@@ -87,14 +95,6 @@
        if (thunk_sigaction(SIGILL, &sa, NULL) == -1)
                panic("couldn't register SIGILL handler : %d", thunk_geterrno());
 
-       if ((sigstk.ss_sp = thunk_malloc(SIGSTKSZ)) == NULL)
-               panic("can't allocate signal stack space\n");
-       sigstk.ss_size  = SIGSTKSZ;
-       sigstk.ss_flags = 0;
-       if (thunk_sigaltstack(&sigstk, 0) < 0)
-               panic("can't set alternate stacksize : %d",
-                   thunk_geterrno());
-
 //     debug_fh = thunk_open("/usr/sources/debug", O_RDWR | O_TRUNC | O_CREAT, 0666);
 }