--- /dev/null
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+// OWNER 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.
+
+#ifndef V8CONFIG_H_
+#define V8CONFIG_H_
+
+// -----------------------------------------------------------------------------
+// Operating system detection
+//
+// V8_OS_ANDROID - Android
+// V8_OS_BSD - BSDish (Mac OS X, Net/Free/Open/DragonFlyBSD)
+// V8_OS_CYGWIN - Cygwin
+// V8_OS_DRAGONFLYBSD - DragonFlyBSD
+// V8_OS_FREEBSD - FreeBSD
+// V8_OS_LINUX - Linux
+// V8_OS_MACOSX - Mac OS X
+// V8_OS_NACL - Native Client
+// V8_OS_NETBSD - NetBSD
+// V8_OS_OPENBSD - OpenBSD
+// V8_OS_POSIX - POSIX compatible (mostly everything except Windows)
+// V8_OS_SOLARIS - Sun Solaris and OpenSolaris
+// V8_OS_WIN - Microsoft Windows
+
+#if defined(__ANDROID__)
+# define V8_OS_ANDROID 1
+# define V8_OS_LINUX 1
+# define V8_OS_POSIX 1
+#elif defined(__APPLE__)
+# define V8_OS_BSD 1
+# define V8_OS_MACOSX 1
+# define V8_OS_POSIX 1
+#elif defined(__native_client__)
+# define V8_OS_NACL 1
+# define V8_OS_POSIX 1
+#elif defined(__CYGWIN__)
+# define V8_OS_CYGWIN 1
+# define V8_OS_POSIX 1
+#elif defined(__linux__)
+# define V8_OS_LINUX 1
+# define V8_OS_POSIX 1
+#elif defined(__sun)
+# define V8_OS_POSIX 1
+# define V8_OS_SOLARIS 1
+#elif defined(__FreeBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_FREEBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__DragonFly__)
+# define V8_OS_BSD 1
+# define V8_OS_DRAGONFLYBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__NetBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_NETBSD 1
+# define V8_OS_POSIX 1
+#elif defined(__OpenBSD__)
+# define V8_OS_BSD 1
+# define V8_OS_OPENBSD 1
+# define V8_OS_POSIX 1
+#elif defined(_WIN32)
+# define V8_OS_WIN 1
+#endif
+
+
+// -----------------------------------------------------------------------------
+// Compiler detection
+//
+// V8_CC_CLANG - Clang
+// V8_CC_GNU - GNU C++
+// V8_CC_MINGW - Minimalist GNU for Windows
+// V8_CC_MSVC - Microsoft Visual C/C++
+//
+// C++11 feature detection
+//
+// V8_HAS_CXX11_ALIGNAS - alignas specifier supported
+// V8_HAS_CXX11_STATIC_ASSERT - static_assert() supported
+// V8_HAS_CXX11_DELETE - deleted functions supported
+// V8_HAS_CXX11_FINAL - final marker supported
+// V8_HAS_CXX11_OVERRIDE - override marker supported
+//
+// Compiler-specific feature detection
+//
+// V8_HAS_ATTRIBUTE___ALIGNED__ - __attribute__((__aligned__(n))) supported
+// V8_HAS_ATTRIBUTE_ALWAYS_INLINE - __attribute__((always_inline)) supported
+// V8_HAS_ATTRIBUTE_DEPRECATED - __attribute__((deprecated)) supported
+// V8_HAS_ATTRIBUTE_VISIBILITY - __attribute__((visibility)) supported
+// V8_HAS_BUILTIN_EXPECT - __builtin_expect() supported
+// V8_HAS_DECLSPEC_ALIGN - __declspec(align(n)) supported
+// V8_HAS_DECLSPEC_DEPRECATED - __declspec(deprecated) supported
+// V8_HAS___FINAL - __final supported in non-C++11 mode
+// V8_HAS___FORCEINLINE - __forceinline supported
+// V8_HAS_SEALED - MSVC style sealed marker supported
+
+#if defined(__clang__)
+
+// Don't treat clang as GCC.
+# define V8_GNUC_PREREQ(major, minor, patchlevel) 0
+
+# define V8_CC_CLANG 1
+
+# define V8_HAS_ATTRIBUTE___ALIGNED__ (__has_attribute(__aligned__))
+# define V8_HAS_ATTRIBUTE_ALWAYS_INLINE (__has_attribute(always_inline))
+# define V8_HAS_ATTRIBUTE_DEPRECATED (__has_attribute(deprecated))
+# define V8_HAS_ATTRIBUTE_VISIBILITY (__has_attribute(visibility))
+
+# define V8_HAS_BUILTIN_EXPECT (__has_builtin(__builtin_expect))
+
+# define V8_HAS_CXX11_ALIGNAS (__has_feature(cxx_alignas))
+# define V8_HAS_CXX11_STATIC_ASSERT (__has_feature(cxx_static_assert))
+# define V8_HAS_CXX11_DELETE (__has_feature(cxx_deleted_functions))
+# define V8_HAS_CXX11_FINAL (__has_feature(cxx_override_control))
+# define V8_HAS_CXX11_OVERRIDE (__has_feature(cxx_override_control))
+
+#elif defined(__GNUC__)
+
+# define V8_GNUC_PREREQ(major, minor, patchlevel) \
+ ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) >= \
+ ((major) * 10000 + (minor) * 100 + (patchlevel)))
+
+# define V8_CC_GNU 1
+# if defined(__MINGW32__)
+# define V8_CC_MINGW 1
+# endif
+
+# define V8_HAS_ATTRIBUTE___ALIGNED__ (V8_GNUC_PREREQ(2, 95, 0))
+# define V8_HAS_ATTRIBUTE_ALWAYS_INLINE (V8_GNUC_PREREQ(4, 0, 0))
+# define V8_HAS_ATTRIBUTE_DEPRECATED (V8_GNUC_PREREQ(3, 4, 0))
+# define V8_HAS_ATTRIBUTE_VISIBILITY (V8_GNUC_PREREQ(4, 3, 0))
+
+# define V8_HAS_BUILTIN_EXPECT (V8_GNUC_PREREQ(2, 96, 0))
+
+// g++ requires -std=c++0x or -std=gnu++0x to support C++11 functionality
+// without warnings (functionality used by the macros below). These modes
+// are detectable by checking whether __GXX_EXPERIMENTAL_CXX0X__ is defined or,
+// more standardly, by checking whether __cplusplus has a C++11 or greater
+// value. Current versions of g++ do not correctly set __cplusplus, so we check
+// both for forward compatibility.
+# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
+# define V8_HAS_CXX11_ALIGNAS (V8_GNUC_PREREQ(4, 8, 0))
+# define V8_HAS_CXX11_STATIC_ASSERT (V8_GNUC_PREREQ(4, 3, 0))
+# define V8_HAS_CXX11_DELETE (V8_GNUC_PREREQ(4, 4, 0))
+# define V8_HAS_CXX11_OVERRIDE (V8_GNUC_PREREQ(4, 7, 0))
+# define V8_HAS_CXX11_FINAL (V8_GNUC_PREREQ(4, 7, 0))
+# else
+// '__final' is a non-C++11 GCC synonym for 'final', per GCC r176655.
+# define V8_HAS___FINAL (V8_GNUC_PREREQ(4, 7, 0))
+# endif
+
+#elif defined(_MSC_VER)
+
+# define V8_GNUC_PREREQ(major, minor, patchlevel) 0
+
+# define V8_CC_MSVC 1
+
+// Override control was added with Visual Studio 2005, but
+// Visual Studio 2010 and earlier spell "final" as "sealed".
+# define V8_HAS_CXX11_FINAL (_MSC_VER >= 1700)
+# define V8_HAS_CXX11_OVERRIDE (_MSC_VER >= 1400)
+# define V8_HAS_SEALED (_MSC_VER >= 1400)
+
+# define V8_HAS_DECLSPEC_ALIGN 1
+# define V8_HAS_DECLSPEC_DEPRECATED (_MSC_VER >= 1300)
+
+# define V8_HAS___FORCEINLINE 1
+
+#endif
+
+
+// -----------------------------------------------------------------------------
+// Helper macros
+
+// A macro used to make better inlining. Don't bother for debug builds.
+#if !defined(DEBUG) && V8_HAS_ATTRIBUTE_ALWAYS_INLINE
+# define V8_INLINE(declarator) inline __attribute__((always_inline)) declarator
+#elif !defined(DEBUG) && V8_HAS___FORCEINLINE
+# define V8_INLINE(declarator) __forceinline declarator
+#else
+# define V8_INLINE(declarator) inline declarator
+#endif
+
+
+// A macro to mark classes or functions as deprecated.
+#if !V8_DISABLE_DEPRECATIONS && V8_HAS_ATTRIBUTE_DEPRECATED
+# define V8_DEPRECATED(declarator) declarator __attribute__((deprecated))
+#elif !V8_DISABLE_DEPRECATIONS && V8_HAS_DECLSPEC_DEPRECATED
+# define V8_DEPRECATED(declarator) __declspec(deprecated) declarator
+#else
+# define V8_DEPRECATED(declarator) declarator
+#endif
+
+
+// A macro to provide the compiler with branch prediction information.
+#if V8_HAS_BUILTIN_EXPECT
+# define V8_UNLIKELY(condition) (__builtin_expect(!!(condition), 0))
+# define V8_LIKELY(condition) (__builtin_expect(!!(condition), 1))
+#else
+# define V8_UNLIKELY(condition) (condition)
+# define V8_LIKELY(condition) (condition)
+#endif
+
+
+// A macro to specify that a method is deleted from the corresponding class.
+// Any attempt to use the method will always produce an error at compile time
+// when this macro can be implemented (i.e. if the compiler supports C++11).
+// If the current compiler does not support C++11, use of the annotated method
+// will still cause an error, but the error will most likely occur at link time
+// rather than at compile time. As a backstop, method declarations using this
+// macro should be private.
+// Use like:
+// class A {
+// private:
+// A(const A& other) V8_DELETE;
+// A& operator=(const A& other) V8_DELETE;
+// };
+#if V8_HAS_CXX11_DELETE
+# define V8_DELETE = delete
+#else
+# define V8_DELETE /* NOT SUPPORTED */
+#endif
+
+
+// Annotate a virtual method indicating it must be overriding a virtual
+// method in the parent class.
+// Use like:
+// virtual void bar() V8_OVERRIDE;
+#if V8_HAS_CXX11_OVERRIDE
+# define V8_OVERRIDE override
+#else
+# define V8_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 V8_FINAL : public A {};
+// virtual void bar() V8_FINAL;
+#if V8_HAS_CXX11_FINAL
+# define V8_FINAL final
+#elif V8_HAS___FINAL
+# define V8_FINAL __final
+#elif V8_HAS_SEALED
+# define V8_FINAL sealed
+#else
+# define V8_FINAL /* NOT SUPPORTED */
+#endif
+
+
+// This macro allows to specify memory alignment for structs, classes, etc.
+// Use like:
+// class V8_ALIGNAS(16) MyClass { ... };
+// V8_ALIGNAS(32) int array[42];
+#if V8_HAS_CXX11_ALIGNAS
+# define V8_ALIGNAS(n) alignas(n)
+#elif V8_HAS_ATTRIBUTE___ALIGNED__
+# define V8_ALIGNAS(n) __attribute__((__aligned__(n)))
+#elif V8_HAS_DECLSPEC_ALIGN
+# define V8_ALIGNAS(n) __declspec(align(n))
+#else
+# define V8_ALIGNAS(n) /* NOT SUPPORTED */
+#endif
+
+#endif // V8CONFIG_H_
#ifndef V8_GLOBALS_H_
#define V8_GLOBALS_H_
+#include "../include/v8stdint.h"
-// Compiler feature/bug detection.
-#if defined(__clang__)
-
-// Don't treat clang as GCC.
-# define V8_GNUC_PREREQ(major, minor, patchlevel) 0
-
-# if __has_feature(cxx_deleted_functions)
-# define V8_HAVE_CXX11_DELETE
-# endif
-
-# if __has_feature(cxx_override_control)
-# define V8_HAVE_CXX11_FINAL
-# define V8_HAVE_CXX11_OVERRIDE
-# endif
-
-# if __has_feature(cxx_static_assert)
-# define V8_HAVE_CXX11_STATIC_ASSERT
-# endif
-
-# define V8_INFINITY INFINITY
-
-#elif defined(__GNUC__)
-
-// GCC version detection.
-# define V8_GNUC_PREREQ(major, minor, patchlevel) \
- ((__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) >= \
- ((major) * 10000 + (minor) * 100 + (patchlevel)))
-
-// g++ requires -std=c++0x or -std=gnu++0x to support C++11 functionality
-// without warnings (functionality used by the macros below). These modes
-// are detectable by checking whether __GXX_EXPERIMENTAL_CXX0X__ is defined or,
-// more standardly, by checking whether __cplusplus has a C++11 or greater
-// value. Current versions of g++ do not correctly set __cplusplus, so we check
-// both for forward compatibility.
-# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
-# if V8_GNUC_PREREQ(4, 3, 0)
-# define V8_HAVE_CXX11_STATIC_ASSERT
-# endif
-# if V8_GNUC_PREREQ(4, 4, 0)
-# define V8_HAVE_CXX11_DELETE
-# endif
-# if V8_GNUC_PREREQ(4, 7, 0)
-# define V8_HAVE_CXX11_OVERRIDE
-# define V8_HAVE_CXX11_FINAL
-# endif
-# else
-// '__final' is a non-C++11 GCC synonym for 'final', per GCC r176655.
-# if V8_GNUC_PREREQ(4, 7, 0)
-# define V8_HAVE_GXX_FINAL
-# endif
-# endif
-
+// Find a working V8_INFINITY.
+#if V8_CC_GNU
// Unfortunately, the INFINITY macro cannot be used with the '-pedantic'
// warning flag and certain versions of GCC due to a bug:
// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11931
// For now, we use the more involved template-based version from <limits>, but
// only when compiling with GCC versions affected by the bug (2.96.x - 4.0.x)
# if V8_GNUC_PREREQ(2, 96, 0) && !V8_GNUC_PREREQ(4, 1, 0)
-# include <limits>
+# include <limits> // NOLINT
# define V8_INFINITY std::numeric_limits<double>::infinity()
# else
# define V8_INFINITY INFINITY
# endif
-
-#elif defined(_MSC_VER)
-
-# define V8_GNUC_PREREQ(major, minor, patchlevel) 0
-
-// Override control was added with Visual Studio 2005.
-# if _MSC_VER >= 1400
-# if _MSC_VER >= 1700
-# define V8_HAVE_CXX11_FINAL
-# else
-// Visual Studio 2010 and earlier spell "final" as "sealed".
-# define V8_HAVE_MSVC_SEALED
-# endif
-# define V8_HAVE_CXX11_OVERRIDE
-# endif
-
+#elif V8_CC_MSVC
# define V8_INFINITY HUGE_VAL
-
+#else
+# define V8_INFINITY INFINITY
#endif
-
-#include "../include/v8stdint.h"
-
namespace v8 {
namespace internal {
}
-// A macro to specify that a method is deleted from the corresponding class.
-// Any attempt to use the method will always produce an error at compile time
-// when this macro can be implemented (i.e. if the compiler supports C++11).
-// If the current compiler does not support C++11, use of the annotated method
-// will still cause an error, but the error will most likely occur at link time
-// rather than at compile time. As a backstop, method declarations using this
-// macro should be private.
-// Use like:
-// class A {
-// private:
-// A(const A& other) V8_DELETE;
-// A& operator=(const A& other) V8_DELETE;
-// };
-#if defined(V8_HAVE_CXX11_DELETE)
-# define V8_DELETE = delete
-#else
-# define V8_DELETE /* NOT SUPPORTED */
-#endif
-
-
-// Annotate a virtual method indicating it must be overriding a virtual
-// method in the parent class.
-// Use like:
-// virtual void bar() V8_OVERRIDE;
-#if defined(V8_HAVE_CXX11_OVERRIDE)
-# define V8_OVERRIDE override
-#else
-# define V8_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 V8_FINAL : public A {};
-// virtual void bar() V8_FINAL;
-#if defined(V8_HAVE_CXX11_FINAL)
-# define V8_FINAL final
-#elif defined(V8_HAVE_GXX_FINAL)
-# define V8_FINAL __final
-#elif defined(V8_HAVE_MSVC_SEALED)
-# define V8_FINAL sealed
-#else
-# define V8_FINAL /* NOT SUPPORTED */
-#endif
-
-
// A macro to disallow the evil copy constructor and operator= functions
// This should be used in the private: declarations for a class
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
projects / platform / upstream / v8.git / commitdiff