Quick guide on how to compile v8 8.4-lkgr for Android on Ubuntu in one copy/paste script. I use this script regularly, so it is well tested.
# Install git: sudo apt install git # Install depot tools # Follow instructions https://v8.dev/docs/source-code. # Fetch v8 source code. # Use the branch of your choice. In will use 8.0-lkgr (last known good release). # I'd advise always using -lkgr branches fetch v8 cd v8 git pull git checkout 8.0-lkgr # Enter v8 folder. cd v8 # Install all dependencies, ndk, sdk, etc. # This may take a while. It downloads android tools: sdk+ndk, etc. build/install-build-deps-android.sh # Set android target. This op might also take some time. echo "target_os = ['android']" >> ../.gclient && gclient sync # Generate compilation target: # Change android_arm.release to the folder name of your choice, in this # case: out.gn/android_arm.release # # you can have a full list of options by running: # `tools/dev/v8gen.py list -m client.v8.ports` # # Use this to compile for arm/arm64 tools/dev/v8gen.py arm.release # Use this to compile for x86 tools/dev/v8gen.py ia32.release # Edit gn configuration file: # I’d recommend disabling icu support, and set # symbol_level=0 for faster compilation and thinner # output libs. You can get the whole list of # compilation options by executing: # `gn args out.gn/android_arm.release —-list` # # E.g.: # # v8_enable_i18n_support= false # is_debug = false # symbol_level = 0 # target_cpu = "arm" # v8_use_external_startup_data = false # v8_monolithic = true # # Optionally set `target_cpu="arm64"` or `target_cpu="x86"` (if ia32 was used) # # for a full argument list, run: # `gn args --list arm.release` # vi out.gn/android_arm.release/args.gn # This is my file contents: # # android_unstripped_runtime_outputs = false # is_component_build = false # is_debug = false # symbol_level = 1 # target_cpu = "arm64" # target_os = "android" # use_goma = false # v8_target_cpu = "arm64" # v8_use_external_startup_data = false # v8_enable_i18n_support= false # v8_android_log_stdout = true # v8_static_library = true # v8_monolithic = true # Compile target: # This may take up to 1 hour depending on your setup. # Use a -j value suitable for your system. ninja -C out.gn/android_arm.release # Fat lib file has been generated by v8_monolithic parameter at # out.gn/<e.g. android_arm.release>/obj/libv8_monolithic.a # source headers, for inspector compilation. mkdir -p src/base/platform mkdir -p src/common mkdir -p src/inspector mkdir -p src/json cp -R ../../../../src/common/*.h ./src/common cp -R ../../../../src/base/*.h ./src/base cp -R ../../../../src/base/platform/*.h ./src/base/platform cp -R ../../../../src/inspector/*.h ./src/inspector cp -R ../../../../src/json/*.h ./src/json # copy v8 compilation header files: cp -R ../../../../include ./ # For compilation on Android, always use the same ndk as # `gclient sync` downloaded. # Enjoy v8 embedded in an Android app
Compile for Android emulator
tools/dev/v8gen.py gen ia32.release # edit out.gn/ia32.release/args.gn, to contain the following: is_debug = false target_cpu = "x86" use_goma = false target_os = "android" v8_use_external_startup_data = false v8_enable_i18n_support = false v8_monolithic = true
