Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
---
libc/sysdeps/linux/arc/sigaction.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/libc/sysdeps/linux/arc/sigaction.c
b/libc/sysdeps/linux/arc/sigaction.c
index 73c496d2a814..a34c7cf4c556 100644
--- a/libc/sysdeps/linux/arc/sigaction.c
+++ b/libc/sysdeps/linux/arc/sigaction.c
@@ -22,8 +22,9 @@ __libc_sigaction (int sig, const struct sigaction *act,
struct sigaction *oact)
{
struct sigaction kact;
- /* !act means caller only wants to know @oact
- * Hence only otherwise, do SA_RESTORER stuff
+ /*
+ * SA_RESTORER is only relevant for act != NULL case
+ * (!act means caller only wants to know @oact)
*
* For the normal/default cases (user not providing SA_RESTORER) use
* a real sigreturn stub to avoid kernel synthesizing one on user stack
@@ -31,9 +32,11 @@ __libc_sigaction (int sig, const struct sigaction *act,
struct sigaction *oact)
* update) and costly cache line flushes for code modification
*/
if (act && !(act->sa_flags & SA_RESTORER)) {
- memcpy(&kact, act, sizeof(kact));
kact.sa_restorer = __default_rt_sa_restorer;
- kact.sa_flags |= SA_RESTORER;
+ kact.sa_flags = act->sa_flags | SA_RESTORER;
+
+ kact.sa_handler = act->sa_handler;
+ kact.sa_mask = act->sa_mask;
act = &kact;
}
--
1.9.1
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