1 files changed, 55 insertions, 0 deletions
diff --git a/nptl/pthread_mutex_init.c b/nptl/pthread_mutex_init.c
new file mode 100644
index 0000000000..3a783d768d
--- /dev/null
+++ b/nptl/pthread_mutex_init.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   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.  */
+
+#include <assert.h>
+#include <string.h>
+#include "pthreadP.h"
+
+
+static const struct pthread_mutexattr default_attr =
+  {
+    /* Default is a normal mutex, not shared between processes.  */
+    .mutexkind = PTHREAD_MUTEX_NORMAL
+  };
+
+
+int
+__pthread_mutex_init (mutex, mutexattr)
+     pthread_mutex_t *mutex;
+     const pthread_mutexattr_t *mutexattr;
+{
+  const struct pthread_mutexattr *imutexattr;
+
+  assert (sizeof (pthread_mutex_t) <= __SIZEOF_PTHREAD_MUTEX_T);
+
+  imutexattr = (const struct pthread_mutexattr *) mutexattr ?: &default_attr;
+
+  /* Clear the whole variable.  */
+  memset (mutex, '\0', __SIZEOF_PTHREAD_MUTEX_T);
+
+  /* Copy the values from the attribute.  */
+  mutex->__data.__kind = imutexattr->mutexkind & ~0x80000000;
+
+  /* Default values: mutex not used yet.  */
+  // mutex->__count = 0;	already done by memset
+  // mutex->__owner = NULL;	already done by memset
+
+  return 0;
+}
+strong_alias (__pthread_mutex_init, pthread_mutex_init)