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[Qemu-devel] [PULL 14/24] cpus.c: Use pthread_sigmask() rather than sigp

From: Paolo Bonzini
Subject: [Qemu-devel] [PULL 14/24] cpus.c: Use pthread_sigmask() rather than sigprocmask()
Date: Mon, 23 May 2016 17:09:49 +0200

From: Peter Maydell <address@hidden>

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>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
 cpus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpus.c b/cpus.c
index eb34b4f..f8366c6 100644
--- a/cpus.c
+++ b/cpus.c
@@ -780,7 +780,7 @@ static void sigbus_reraise(void)
         sigaddset(&set, SIGBUS);
-        sigprocmask(SIG_UNBLOCK, &set, NULL);
+        pthread_sigmask(SIG_UNBLOCK, &set, NULL);
     perror("Failed to re-raise SIGBUS!\n");

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