deps: upgrade v8 to 3.18.4

deps/v8/.gitignore

@@ -19,6 +19,7 @@
 *~
 .cpplint-cache
 .d8_history
+bsuite
 d8
 d8_g
 shell

deps/v8/AUTHORS

@@ -9,6 +9,7 @@ ARM Ltd.
 Hewlett-Packard Development Company, LP
 Igalia, S.L.
 Joyent, Inc.
+Bloomberg Finance L.P.
 
 Akinori MUSHA <knu@FreeBSD.org>
 Alexander Botero-Lowry <alexbl@FreeBSD.org>

deps/v8/ChangeLog

@@ -1,3 +1,35 @@
+2013-04-26: Version 3.18.4
+
+        Added a preliminary API for ES6 ArrayBuffers
+
+        Replaced qsort with std::sort. (Chromium issue 2639)
+
+        Performance and stability improvements on all platforms.
+
+
+2013-04-24: Version 3.18.3
+
+        Exposed the GC under a name that is less collision prone than window.gc.
+        (issue 2641)
+
+        Do not emit double values at their use sites. (Chromium issue 234101)
+
+        Added methods to allow resuming execution after calling
+        TerminateExecution(). (issue 2361)
+
+        Performance and stability improvements on all platforms.
+
+
+2013-04-22: Version 3.18.2
+
+        OS::MemMove/OS::MemCopy: Don't call through to generated code when size
+        == 0 to avoid prefetching invalid memory (Chromium issue 233500)
+
+        Removed heap snapshot size limit. (Chromium issue 232305)
+
+        Performance and stability improvements on all platforms.
+
+
 2013-04-18: Version 3.18.1
 
         Removed SCons related files and deprecated test suite configurations.

deps/v8/build/README.txt

@@ -1,66 +1,9 @@
-This directory contains the V8 GYP files used to generate actual project files
-for different build systems.
+For build instructions, please refer to:
 
-This is currently work in progress but this is expected to replace the SCons
-based build system.
+https://code.google.com/p/v8/wiki/BuildingWithGYP
 
-To use this a checkout of GYP is needed inside this directory. From the root of
-the V8 project do the following:
+TL;DR version on *nix:
+$ make dependencies        # Only needed once.
+$ make ia32.release -j8
+$ make ia32.release.check  # Optionally: run tests.
 
-$ svn co http://gyp.googlecode.com/svn/trunk build/gyp
-
-Note for the command lines below that Debug is the default configuration,
-so specifying that on the command lines is not required.
-
-
-To generate Makefiles on Linux:
--------------------------------
-
-$ build/gyp_v8
-
-This will build makefiles for ia32, x64 and the ARM simulator with names
-Makefile-ia32, Makefile-x64 and Makefile-armu respectively.
-
-To build and run for ia32 in debug and release version do:
-
-$ make -f Makefile-ia32
-$ out/Debug/shell
-$ make -f Makefile-ia32 BUILDTYPE=Release
-$ out/Release/shell
-
-Change the makefile to build and run for the other architectures.
-
-
-To generate Xcode project files on Mac OS:
-------------------------------------------
-
-$ build/gyp_v8
-
-This will make an Xcode project for the ia32 architecture. To build and run do:
-
-$ xcodebuild -project build/all.xcodeproj
-$ samples/build/Debug/shell
-$ xcodebuild -project build/all.xcodeproj -configuration Release
-$ samples/build/Release/shell
-
-
-To generate Visual Studio solution and project files on Windows:
-----------------------------------------------------------------
-
-On Windows an additional third party component is required. This is cygwin in
-the same version as is used by the Chromium project. This can be checked out
-from the Chromium repository. From the root of the V8 project do the following:
-
-> svn co http://src.chromium.org/svn/trunk/deps/third_party/cygwin@66844 third_party/cygwin
-
-To run GYP Python is required and it is recommended to use the same version as
-is used by the Chromium project. This can also be checked out from the Chromium
-repository. From the root of the V8 project do the following:
-
-> svn co http://src.chromium.org/svn/trunk/tools/third_party/python_26@89111 third_party/python_26
-
-Now generate Visual Studio solution and project files for the ia32 architecture:
-
-> third_party\python_26\python build/gyp_v8
-
-Now open build\All.sln in Visual Studio.

deps/v8/build/common.gypi

@@ -454,6 +454,15 @@
           }],
           ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" \
             or OS=="android"', {
+            'cflags!': [
+              '-O2',
+              '-Os',
+            ],
+            'cflags': [
+              '-fdata-sections',
+              '-ffunction-sections',
+              '-O3',
+            ],
             'conditions': [
               [ 'gcc_version==44 and clang==0', {
                 'cflags': [

deps/v8/build/gyp_v8

@@ -32,6 +32,7 @@
 
 import glob
 import os
+import platform
 import shlex
 import sys
 
@@ -43,9 +44,6 @@ if __name__ == '__main__':
   script_dir = os.path.dirname(__file__)
   v8_root = '.'
 
-sys.path.insert(0, os.path.join(v8_root, 'tools'))
-import utils
-
 sys.path.insert(0, os.path.join(v8_root, 'build', 'gyp', 'pylib'))
 import gyp
 
@@ -164,6 +162,6 @@ if __name__ == '__main__':
 
   # Generate for the architectures supported on the given platform.
   gyp_args = list(args)
-  if utils.GuessOS() == 'linux':
+  if platform.system() == 'Linux':
     gyp_args.append('--generator-output=out')
   run_gyp(gyp_args)

deps/v8/include/v8-profiler.h

@@ -554,6 +554,11 @@ class V8EXPORT HeapProfiler {
   /** Returns memory used for profiler internal data and snapshots. */
   size_t GetProfilerMemorySize();
 
+  /**
+   * Sets a RetainedObjectInfo for an object group (see V8::SetObjectGroupId).
+   */
+  void SetRetainedObjectInfo(UniqueId id, RetainedObjectInfo* info);
+
  private:
   HeapProfiler();
   ~HeapProfiler();