1 files changed, 72 insertions, 0 deletions
diff --git a/gcc-4.8.3/gcc/ada/thread.c b/gcc-4.8.3/gcc/ada/thread.c
new file mode 100644
index 000000000..87d7603cf
--- /dev/null
+++ b/gcc-4.8.3/gcc/ada/thread.c
@@ -0,0 +1,72 @@
+/****************************************************************************
+ *                                                                          *
+ *                         GNAT COMPILER COMPONENTS                         *
+ *                                                                          *
+ *                              P T H R E A D                               *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *             Copyright (C) 2011, Free Software Foundation, Inc.           *
+ *                                                                          *
+ * GNAT is free software;  you can  redistribute it  and/or modify it under *
+ * terms of the  GNU General Public License as published  by the Free Soft- *
+ * ware  Foundation;  either version 3,  or (at your option) any later ver- *
+ * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
+ *                                                                          *
+ * As a special exception under Section 7 of GPL version 3, you are granted *
+ * additional permissions described in the GCC Runtime Library Exception,   *
+ * version 3.1, as published by the Free Software Foundation.               *
+ *                                                                          *
+ * You should have received a copy of the GNU General Public License and    *
+ * a copy of the GCC Runtime Library Exception along with this program;     *
+ * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    *
+ * <http://www.gnu.org/licenses/>.                                          *
+ *                                                                          *
+ * GNAT was originally developed  by the GNAT team at  New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc.      *
+ *                                                                          *
+ ****************************************************************************/
+
+/*  This file provides utility functions to access the threads API          */
+
+#include "s-oscons.h"
+
+#ifdef NEED_PTHREAD_CONDATTR_SETCLOCK
+# include <pthread.h>
+# include <time.h>
+
+#ifndef _AIXVERSION_530
+/* We use the same runtime library for AIX 5.2 and 5.3, but pthread_condattr_
+ * setclock exists only on the latter, so for the former provide a dummy
+ * implementation (declared below, weak symbol defined in init.c).
+ *
+ * Note: this means that under AIX 5.2 we'll be using CLOCK_MONOTONIC
+ * timestamps from clock_gettime() as arguments to pthread_cond_timedwait,
+ * which expects a CLOCK_REALTIME value, which is technically wrong, but
+ * inocuous in practice on that particular platform since both clocks happen
+ * to use close epochs.
+ */
+
+extern int pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t cl);
+#endif
+
+int
+__gnat_pthread_condattr_setup(pthread_condattr_t *attr) {
+/*
+ * If using a clock other than CLOCK_REALTIME for the Ada Monotonic_Clock,
+ * the corresponding clock id must be set for condition variables.
+ */
+  return pthread_condattr_setclock (attr, CLOCK_RT_Ada);
+}
+
+#else
+
+int
+__gnat_pthread_condattr_setup (void *attr) {
+  /* Dummy version for other platforms, which may or may not have pthread.h */
+  return 0;
+}
+
+#endif