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authorAndi Kleen <ak@suse.de>2007-02-13 13:26:26 +0100
committerAndi Kleen <andi@basil.nowhere.org>2007-02-13 13:26:26 +0100
commit9fbbd4dd17d0712054368e5e939e28b2456bfe1b (patch)
tree778766e35c52529ed0fc369ce1c3cf9382fc6e16 /arch/x86_64
parent120fad72401ebec2a126c16cc48f56c28f3eefe2 (diff)
[PATCH] x86: Don't require the vDSO for handling a.out signals
and in other strange binfmts. vDSO is not necessarily mapped there. Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/ia32/ia32_signal.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c
index 490f7c1b7c8..359eacc3850 100644
--- a/arch/x86_64/ia32/ia32_signal.c
+++ b/arch/x86_64/ia32/ia32_signal.c
@@ -21,6 +21,7 @@
#include <linux/stddef.h>
#include <linux/personality.h>
#include <linux/compat.h>
+#include <linux/binfmts.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/i387.h>
@@ -449,7 +450,11 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
/* Return stub is in 32bit vsyscall page */
{
- void __user *restorer = VSYSCALL32_SIGRETURN;
+ void __user *restorer;
+ if (current->binfmt->hasvdso)
+ restorer = VSYSCALL32_SIGRETURN;
+ else
+ restorer = (void *)&frame->retcode;
if (ka->sa.sa_flags & SA_RESTORER)
restorer = ka->sa.sa_restorer;
err |= __put_user(ptr_to_compat(restorer), &frame->pretcode);