Fix Valgrind integration breakage.

* signal.c (sig_mask): Pass address of real_oldset
to VALGRIND_MAKE_MEM_DEFINED, rather than a copy
of the object itself.

1 files changed, 1 insertions, 1 deletions

diff --git a/signal.c b/signal.c
index 93d69b67..2bcf8d72 100644
--- a/signal.c
+++ b/signal.c
@@ -365,7 +365,7 @@ int sig_mask(int how, const small_sigset_t *set, small_sigset_t *oldset)
     sig_blocked_cache = *pnew;
     int ret;
 #if HAVE_VALGRIND
-    VALGRIND_MAKE_MEM_DEFINED(real_oldset, sizeof real_oldset);
+    VALGRIND_MAKE_MEM_DEFINED(&real_oldset, sizeof real_oldset);
 #endif
     memcpy(&real_newset, &sig_blocked_cache, sizeof sig_blocked_cache);
     ret = sigprocmask(SIG_SETMASK, &real_newset, &real_oldset);