libio: Disable vtable validation for pre-2.1 interposed handles [BZ #25203]

[thirdparty/glibc.git] / nptl / pthread_cond_init.c

diff --git a/nptl/pthread_cond_init.c b/nptl/pthread_cond_init.c
index 5e2e6704a90ac2d0b5f426c5cf252d2c0464d99b..0387f00ad0516d53b1abe5c4b5bcc2f1f79ea3bc 100644 (file)
--- a/nptl/pthread_cond_init.c
+++ b/nptl/pthread_cond_init.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2017 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -13,32 +13,37 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <shlib-compat.h>
 #include "pthreadP.h"
+#include <stap-probe.h>
+#include <string.h>
 
 
+/* See __pthread_cond_wait for details.  */
 int
-__pthread_cond_init (cond, cond_attr)
-     pthread_cond_t *cond;
-     const pthread_condattr_t *cond_attr;
+__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *cond_attr)
 {
   struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
 
-  cond->__data.__lock = LLL_MUTEX_LOCK_INITIALIZER;
-  cond->__data.__futex = 0;
-  cond->__data.__nwaiters = (icond_attr != NULL
-                            && ((icond_attr->value & (COND_CLOCK_BITS << 1))
-                                >> 1));
-  cond->__data.__total_seq = 0;
-  cond->__data.__wakeup_seq = 0;
-  cond->__data.__woken_seq = 0;
-  cond->__data.__mutex = (icond_attr == NULL || (icond_attr->value & 1) == 0
-                         ? NULL : (void *) ~0l);
-  cond->__data.__broadcast_seq = 0;
+  memset (cond, 0, sizeof (pthread_cond_t));
+
+  /* Update the pretty printers if the internal representation of icond_attr
+     is changed.  */
+
+  /* Iff not equal to ~0l, this is a PTHREAD_PROCESS_PRIVATE condvar.  */
+  if (icond_attr != NULL && (icond_attr->value & 1) != 0)
+    cond->__data.__wrefs |= __PTHREAD_COND_SHARED_MASK;
+  int clockid = (icond_attr != NULL
+                ? ((icond_attr->value >> 1) & ((1 << COND_CLOCK_BITS) - 1))
+                : CLOCK_REALTIME);
+  /* If 0, CLOCK_REALTIME is used; CLOCK_MONOTONIC otherwise.  */
+  if (clockid != CLOCK_REALTIME)
+    cond->__data.__wrefs |= __PTHREAD_COND_CLOCK_MONOTONIC_MASK;
+
+  LIBC_PROBE (cond_init, 2, cond, cond_attr);
 
   return 0;
 }