visual studio 2010 编译 google v8

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#v8 c++ #Visual Studio 2010

本文介绍如何在Windows和Ubuntu环境下从源代码编译V8 JavaScript引擎，并提供了一个简单的示例来展示如何使用V8进行JavaScript代码的执行。

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win7 + vs2010

how to build:
http://code.google.com/p/v8/wiki/BuildingWithGYP

svn:
http://tortoisesvn.net/downloads/

python(2.7):
http://www.python.org/download/

download source and build in command lines:

1. svn checkout http://v8.googlecode.com/svn/trunk/ v8

Change to v8 dir and do the rest:
2. svn checkout http://gyp.googlecode.com/svn/trunk build/gyp

3. svn checkout http://src.chromium.org/svn/trunk/deps/third_party/cygwin@66844 third_party/cygwin

4. add python's dir such as "c:\python27" to PATH env.

5. python build\gyp_v8 -Dtarget_arch=ia32 -Dcomponent=shared_library
python build\gyp_v8 -Dtarget_arch=x64
python build\gyp_v8 -Dtarget_arch=ia32

all.sln will be generated in "build" subdir.

6. "c:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.com" /build Release build\All.sln

7. copy v8.dll to windows system32 dir.

* errors may occur when compiling preparser using shared_library mode, ignore it or:
edit preparser.vcxproj in preparser dir under v8, replace all "USING_V8_SHARED" with "BUILDING_V8_SHARED".

* path problems may occur when compiling using IDE, use command line please.

//////////////////////////////////////////////////////////////////////
Ubuntu 12

svn + python + gcc + make

1. svn checkout http://v8.googlecode.com/svn/trunk/ v8

2. cd v8

3. make dependencies

4. make native mode=debug library=shared snapshot=on

5. sudo cp ./out/native/lib.target/libv8.so /usr/lib/

//////////////////////////////////////////////////////////////////////

// Hello world for Visual Studio

#include "v8.h"
#pragma comment(lib, "v8.lib")

using namespace v8;

int main(int argc, char* argv[])
{
   // Get the default Isolate created at startup.
   Isolate* isolate = Isolate::GetCurrent();

   // Create a stack-allocated handle scope.
   HandleScope handle_scope(isolate);

   // Create a new context.
   Handle<Context> context = Context::New(isolate);

   // Here's how you could create a Persistent handle to the context, if needed.
   Persistent<Context> persistent_context(isolate, context);

   // Enter the created context for compiling and
   // running the hello world script.
   Context::Scope context_scope(context);

   // Create a string containing the JavaScript source code.
   Handle<String> source = String::New("'Hello' + ', World!'");

   // Compile the source code.
   Handle<Script> script = Script::Compile(source);

   // Run the script to get the result.
   Handle<Value> result = script->Run();

   // The persistent handle needs to be eventually disposed.
   persistent_context.Dispose();

   // Convert the result to an ASCII string and print it.
   String::AsciiValue ascii(result);
   printf("result: %s\n", *ascii);
   return 0;
}