[pacman-dev] [PATCH 1/2] sighandler: block signals while handling SIGSEGV
Andrew Gregory
andrew.gregory.8 at gmail.com
Sat Jun 8 04:12:16 UTC 2019
If we get SIGSEGV we need to bail out quickly, leaving other signals
unblocked could lead to other signal handlers getting triggered.
Signed-off-by: Andrew Gregory <andrew.gregory.8 at gmail.com>
---
Signals are hard. I'd appreciate if somebody could double check my
math on these patches.
src/pacman/sighandler.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/pacman/sighandler.c b/src/pacman/sighandler.c
index ebcdebae..a4849a0c 100644
--- a/src/pacman/sighandler.c
+++ b/src/pacman/sighandler.c
@@ -96,7 +96,7 @@ void install_segv_handler(void)
{
struct sigaction new_action;
new_action.sa_handler = segv_handler;
- sigemptyset(&new_action.sa_mask);
+ sigfillset(&new_action.sa_mask);
new_action.sa_flags = SA_RESTART;
sigaction(SIGSEGV, &new_action, NULL);
}
--
2.21.0
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