doc/examples: cds_lfht_add_unique

[urcu.git] / compat_arch_x86.c

diff --git a/compat_arch_x86.c b/compat_arch_x86.c
index e882a4afe467f511832b4d4e662225b7fd41ca3a..7d3b83af3c3949049f84f95267df1eb48687e311 100644 (file)
--- 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)