编译的操作系统
ubuntu 16.04
源码分支获取
找好源码分支
这里我们找pixel因为手里只有pixel
https://source.android.com/setup/start/build-numbers#source-code-tags-and-builds
选区_001.png
下载android源码
repo
1 2 3 4 5 6 7 8 | sudo apt-get install git-core sudo apt-get install git-core curl mkdir ~/bin/ cd ~/bin curl https://mirrors.tuna.tsinghua.edu.cn/git/git-repo > ~/bin/repo chmod a+x ~/bin/repo gedit ~/.bashrc |
在~/.bashrc里添加
1 2 3 4 5 | alias ob='gedit ~/.bashrc' alias sr='source ~/.bashrc' #国内镜像 export REPO_URL='https://aosp.tuna.tsinghua.edu.cn/git-repo' |
下载
1 2 3 | cd ~/work/sources/android-10.0.0_r17 repo init -u https://aosp.tuna.tsinghua.edu.cn/platform/manifest -b android-10.0.0_r17 repo sync -j16 |
驱动
https://developers.google.com/android/drivers#sailfishqp1a.190711.020
google_devices-sailfish-qp1a.191005.007.a3-a1615a0f.tgz
qcom-sailfish-qp1a.191005.007.a3-191228fe.tgz
解压驱动到vendor文件夹，然后把它放到源码根目录
编译环境
1 2 3 4 5 6 | sudo apt-get install git-core gnupg flex bison gperf build-essential \ zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 \ lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache \ libgl1-mesa-dev libxml2-utils xsltproc unzip sudo apt-get install openjdk-8-jdk |
关odex
更改 build/make/core/board_config.mk
1 2 3 4 | #ifeq ($(HOST_OS),linux) # WITH_DEXPREOPT := true #endif WITH_DEXPREOPT=false |
修改build/core/dex_preopt_config.mk
1 2 3 4 5 6 7 8 9 10 | DEX_PREOPT_DEFAULT ?= true改成 DEX_PREOPT_DEFAULT?= false ifneq (true,$(WITH_DEXPREOPT)) ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY)) #$(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds) $(warning odex关闭) endif endif |
去掉DEX优化编译的方法：
1、mm WITH_DEXPREOPT=false
2、Android.mk中增加：LOCAL_DEX_PREOPT := false
1 2 3 4 5 6 7 8 9 10 | # Non eng linux builds must have preopt enabled so that system server doesn't run as interpreter # only. b/74209329 ifeq (,$(filter eng, $(TARGET_BUILD_VARIANT))) ifneq (true,$(WITH_DEXPREOPT)) ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY)) #$(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds) $(warning WITH_DEXPREOPT=false) endif endif endif |
因为默认eng编译，WITH_DEXPREOPT必须打开为true,否则提示编译报错。
修改android.bp实现模块编译关odex
系统里的打包配置是android.bp，不知道android.mk是怎么转的bp可以看 build/soong/androidmk/cmd/androidmk/android.go
1 2 | "LOCAL_DEX_PREOPT": "dex_preopt.enabled", "LOCAL_MODULE": "name", |
所以可以去/framework里找android.bp
framework的bp文件在framework/base/Android.bp，加上dex_preopt项
1 2 3 4 5 6 7 8 | java_library { name: "framework", defaults: ["framework-defaults"], javac_shard_size: 150, dex_preopt: { enabled:false, }, } |
services在framework/base/services/Android.bp
1 2 3 4 5 6 7 8 9 | java_library { name: "services", installable: true, dex_preopt: { enabled:false, //app_image: true, //profile: "art-profile", }, |
准备
1 2 | source ./build/envsetup.sh lunch aosp_sailfish-userdebug |
编译
1 | make -j16 |
ninja快速编译framewrk
1 2 3 4 5 6 | ./prebuilts/build-tools/linux-x86/bin/ninja -f out/combined-aosp_sailfish.ninja services ./prebuilts/build-tools/linux-x86/bin/ninja -f out/combined-aosp_sailfish.ninja framework adb push out/target/product/sailfish/system/framework/oat/arm64/services.odex system/framework/oat/arm64 adb push out/target/product/sailfish/system/framework/oat/arm64/services.vdex system/framework/oat/arm64 adb push out/target/product/sailfish/system/framework/services.jar system/framework adb push out/target/product/sailfish/system/framework/services.jar.prof system/framework |
刷机
1 | fastboot flashall -w |