[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] cpus.c: Use pthread_sigmask() rather than sigprocma
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH] cpus.c: Use pthread_sigmask() rather than sigprocmask() |
Date: |
Mon, 16 May 2016 18:33:59 +0100 |
On Linux, sigprocmask() and pthread_sigmask() are in practice the
same thing (they only set the signal mask for the calling thread),
but the documentation states that the behaviour of sigprocmask() in a
multithreaded process is undefined. Use pthread_sigmask() instead
(which is what we do in almost all places in QEMU that alter the
signal mask already).
Signed-off-by: Peter Maydell <address@hidden>
---
cpus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cpus.c b/cpus.c
index cbeb1f6..1d0fc53 100644
--- a/cpus.c
+++ b/cpus.c
@@ -778,7 +778,7 @@ static void sigbus_reraise(void)
raise(SIGBUS);
sigemptyset(&set);
sigaddset(&set, SIGBUS);
- sigprocmask(SIG_UNBLOCK, &set, NULL);
+ pthread_sigmask(SIG_UNBLOCK, &set, NULL);
}
perror("Failed to re-raise SIGBUS!\n");
abort();
--
1.9.1
- [Qemu-devel] [PATCH] cpus.c: Use pthread_sigmask() rather than sigprocmask(),
Peter Maydell <=