[PATCH] Add RTEMS support for GCC libatomic

[Sebastian Huber <sebastian dot huber at embedded-brains dot de>]

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
---
 newlib/libc/sys/rtems/include/machine/_libatomic.h | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 newlib/libc/sys/rtems/include/machine/_libatomic.h

diff --git a/newlib/libc/sys/rtems/include/machine/_libatomic.h b/newlib/libc/sys/rtems/include/machine/_libatomic.h
new file mode 100644
index 0000000..3456440
--- /dev/null
+++ b/newlib/libc/sys/rtems/include/machine/_libatomic.h
@@ -0,0 +1,46 @@
+/*-
+ * Copyright (c) 2016 embedded brains GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * The libatomic is a part of GCC.  It provides library support for C11/C++11
+ * atomic operations.  This file defines the interface to the operating system
+ * for the RTEMS configuration of libatomic.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+__BEGIN_DECLS
+
+__uint32_t _Libatomic_Protect_start(void *);
+
+void _Libatomic_Protect_end(void *, __uint32_t);
+
+void _Libatomic_Lock_n(void *, __size_t);
+
+void _Libatomic_Unlock_n(void *, __size_t);
+
+__END_DECLS
-- 
1.8.4.5