Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/src/base/compiler-specific.h b/src/base/compiler-specific.h
new file mode 100644
index 0000000..475a32c
--- /dev/null
+++ b/src/base/compiler-specific.h
@@ -0,0 +1,58 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_BASE_COMPILER_SPECIFIC_H_
+#define V8_BASE_COMPILER_SPECIFIC_H_
+
+#include "include/v8config.h"
+
+// Annotate a variable indicating it's ok if the variable is not used.
+// (Typically used to silence a compiler warning when the assignment
+// is important for some other reason.)
+// Use like:
+// int x ALLOW_UNUSED = ...;
+#if V8_HAS_ATTRIBUTE_UNUSED
+#define ALLOW_UNUSED __attribute__((unused))
+#else
+#define ALLOW_UNUSED
+#endif
+
+
+// Annotate a virtual method indicating it must be overriding a virtual
+// method in the parent class.
+// Use like:
+// virtual void bar() OVERRIDE;
+#if V8_HAS_CXX11_OVERRIDE
+#define OVERRIDE override
+#else
+#define OVERRIDE /* NOT SUPPORTED */
+#endif
+
+
+// Annotate a virtual method indicating that subclasses must not override it,
+// or annotate a class to indicate that it cannot be subclassed.
+// Use like:
+// class B FINAL : public A {};
+// virtual void bar() FINAL;
+#if V8_HAS_CXX11_FINAL
+#define FINAL final
+#elif V8_HAS___FINAL
+#define FINAL __final
+#elif V8_HAS_SEALED
+#define FINAL sealed
+#else
+#define FINAL /* NOT SUPPORTED */
+#endif
+
+
+// Annotate a function indicating the caller must examine the return value.
+// Use like:
+// int foo() WARN_UNUSED_RESULT;
+#if V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define WARN_UNUSED_RESULT /* NOT SUPPORTED */
+#endif
+
+#endif // V8_BASE_COMPILER_SPECIFIC_H_