X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=compat_arch_x86.c;h=7d3b83af3c3949049f84f95267df1eb48687e311;hp=e882a4afe467f511832b4d4e662225b7fd41ca3a;hb=650b434b12597af49cad28c5c4b5faa3c98c04b0;hpb=8c43fe7257db4d2d75bbf06066d10a3a414f061e

diff --git a/compat_arch_x86.c b/compat_arch_x86.c
index e882a4a..7d3b83a 100644
--- a/compat_arch_x86.c
+++ b/compat_arch_x86.c
@@ -80,9 +80,9 @@ static void mutex_lock_signal_save(pthread_mutex_t *mutex, sigset_t *oldmask)
 	int ret;
 
 	/* Disable signals */
-	ret = sigemptyset(&newmask);
+	ret = sigfillset(&newmask);
 	assert(!ret);
-	ret = pthread_sigmask(SIG_SETMASK, &newmask, oldmask);
+	ret = pthread_sigmask(SIG_BLOCK, &newmask, oldmask);
 	assert(!ret);
 	ret = pthread_mutex_lock(&compat_mutex);
 	assert(!ret);
@@ -122,10 +122,11 @@ unsigned long _compat_uatomic_set(void *addr, unsigned long _new, int len)
 		 * generate an illegal instruction. Cannot catch this with
 		 * linker tricks when optimizations are disabled.
 		 */
+		result = 0;
 		__asm__ __volatile__("ud2");
 	}
 	mutex_lock_signal_restore(&compat_mutex, &mask);
-	return _new;
+	return result;
 }
 
 unsigned long _compat_uatomic_xchg(void *addr, unsigned long _new, int len)