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authorRyan S. Arnold <rsa@us.ibm.com>2010-12-19 22:49:01 -0500
committerUlrich Drepper <drepper@gmail.com>2010-12-19 22:49:01 -0500
commit30950a5fd2346c43ba4fc59c16f122cfb59f9629 (patch)
tree400aceac60bdb17ec66caf2850d173ad8554e135 /sysdeps/i386
parentdb753e2cfb2051ebf20dc089f87c5b1297cc2cff (diff)
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Make PowerPC64 default to nonexecutable stack
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/stackinfo.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/i386/stackinfo.h b/sysdeps/i386/stackinfo.h
index 2530ea7234..166c1d14ae 100644
--- a/sysdeps/i386/stackinfo.h
+++ b/sysdeps/i386/stackinfo.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2009, 2010 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -22,9 +22,15 @@
#ifndef _STACKINFO_H
#define _STACKINFO_H 1
+#include <elf.h>
+
/* On x86 the stack grows down. */
#define _STACK_GROWS_DOWN 1
+/* Default to an executable stack. PF_X can be overridden if PT_GNU_STACK is
+ * present, but it is presumed absent. */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)
+
/* Access to the stack pointer. The macros are used in alloca_account
for which they need to act as barriers as well, hence the additional
(unnecessary) parameters. */