Add support for -fstack-protector.

/

2008-12-11  Neal H. Walfield  <neal@gnu.org>

	* configure.ac (C_CHECKS): Add `-fstack-protector-all' for all
	runtime check levels except level 0.

libc-parts/

2008-12-11  Neal H. Walfield  <neal@gnu.org>

	* headers.m4: Create sysroot/lib/libssp.a and
	sysroot/lib/libssp-nonshared.a.
	* stack-protector.c: New file.
	* Makefile.am (common_sources): Add stack-protector.c.

1 files changed, 30 insertions, 0 deletions

diff --git a/libc-parts/stack-protector.c b/libc-parts/stack-protector.c
new file mode 100644
index 0000000..2c3bd58
--- /dev/null
+++ b/libc-parts/stack-protector.c
@@ -0,0 +1,30 @@
+/* stack-protector.c - Stack protector stubs.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   Written by Neal H. Walfield <neal@gnu.org>.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 3 of the
+   License, or (at your option) any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <hurd/stddef.h>
+
+int __stack_chk_guard = 0xcab00d1e;
+
+void
+__stack_chk_fail (void)
+{
+  backtrace_print ();
+  panic ("stack check failed!");
+}