COMPMID-518 - Bare metal support

Change-Id: Ida6d3dc46476fd9a67b5860e5e5bf8b848a8ac23
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/85981
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>

2 files changed, 56 insertions, 3 deletions

diff --git a/support/Mutex.h b/support/Mutex.h
new file mode 100644
index 0000000000..6d0a387678
--- /dev/null
+++ b/support/Mutex.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_MUTEX_H__
+#define __ARM_COMPUTE_MUTEX_H__
+
+#include <mutex>
+
+namespace arm_compute
+{
+#ifndef NO_MULTI_THREADING
+using Mutex = std::mutex;
+#else  /* NO_MULTI_THREADING */
+/** Wrapper implementation of Mutex data-object */
+class Mutex
+{
+public:
+    /** Default constructor */
+    Mutex()  = default;
+    ~Mutex() = default;
+
+    void lock() {};
+
+    void unlock() {};
+
+    bool try_lock()
+    {
+        return true;
+    }
+};
+#endif /* NO_MULTI_THREADING */
+}
+#endif /* __ARM_COMPUTE_MUTEX_H__ */
diff --git a/support/ToolchainSupport.h b/support/ToolchainSupport.h
index c73f2486e1..87e9bd2bc8 100644
--- a/support/ToolchainSupport.h
+++ b/support/ToolchainSupport.h
@@ -40,7 +40,7 @@ namespace support
 {
 namespace cpp11
 {
-#ifdef __ANDROID__
+#if(__ANDROID__ || BARE_METAL)
 /** Convert integer and float values to string.
  *
  * @note This function implements the same behaviour as std::to_string. The
@@ -154,7 +154,7 @@ inline T copysign(T x, T y)
 {
     return ::copysign(x, y);
 }
-#else  /* __ANDROID__ */
+#else  /* (__ANDROID__ || BARE_METAL) */
 /** Convert integer and float values to string.
  *
  * @note This function acts as a convenience wrapper around std::to_string. The
@@ -260,7 +260,7 @@ inline T copysign(T x, T y)
 {
     return std::copysign(x, y);
 }
-#endif /* __ANDROID__ */
+#endif /* (__ANDROID__ || BARE_METAL) */
 
 inline std::string to_string(bool value)
 {