前期准备工作

• 稳定的上网环境

• 准备好 ninja, 将 depot_tools 目录加入系统环境变量 PATH

  git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
  

• Python 2.7

• 从微软下载Windows 10 SDK，安装 "Debugging Tools for Windows" ...

• 设置 cipd_client 的 http 代理设置

  set HTTP_PROXY=127.0.0.1:7890
  set HTTPS_PROXY=127.0.0.1:7890
  

• set DEPOT_TOOLS_WIN_TOOLCHAIN=0

下载源码

mkdir V8Build
cd V8Build
fetch v8

cd v8
git pull origin 9.1
git new-branch fix-bug-1234
git checkout xxx
cd ..

同步环境

gclient sync

编译

• Using v8gen

  # Step 1: Generating build files using v8gen
  python  tools/dev/v8gen.py --help
  
  # Generate into out.gn/foo without goma auto-detect.
  python  tools/dev/v8gen.py gen -b ia32.release foo --no-goma
  
  # Step 2: compile V8
  ninja -C out.gn/foo
  
  # Step 3: run tests
  python tools/run-tests.py --outdir out.gn/foo
  

• Using vs

  # Step 1: 生成解决方案
  cd v8/src
  gn gen --ide=vs out\Default
  
  # Step 2: 编译
  devenv out\Default\all.sln
  
  # Step 3: 测试
  out\Default\v8_shell.exe
  

参考

v8.dev/docs/
www.neohope.com/2020/03/21/…