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Android 源码编译方法

2023-09-22 09:28

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和你一起终身学习，这里是程序员Android

经典好文推荐，通过阅读本文，您将收获以下知识点:

一、查看项目所在分支
二、切换到目标分支
三、查看当前所在分支
四、编译Android源码
五、source Android 编译环境
六、lunch 所需的编译项目
七、单编模块
八、push 模块验证修改是否生效
九、参考文献

一、查看项目所在分支

git branch -a
表示：查看并列出当前项目所有分支

高通项目举例如下：

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git branch -a* linux_android_development  master  remotes/origin/A/B_update_linux_android_development  remotes/origin/HEAD -> origin/master  ... ...  remotes/origin/secure_linux_android_development  remotes/origin/streamlined_code_engineeringTest@Test:/Test/Qualcomm_p/E7M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

二、切换到目标分支

git checkout 分支名
表示：切换到某个分支。

高通项目举例如下：
git checkout linux_android_development

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git branch -a* linux_android_development  master  remotes/origin/A/B_update_linux_android_development  remotes/origin/HEAD -> origin/master  remotes/origin/cts_development_branch  ... ...Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git checkout linux_android_development

三、查看当前所在分支

git branch
表示：查看当前所在分支

高通项目举例如下：

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git branch * linux_android_development  masterTest@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

四、编译Android源码

Android 源码编译，每个项目由于脚本各不相同，编译的命令有时候也会有说差异。

google 官方编译命令如下

source ./build/envsetup.sh
2.lunch 项目
3.make -j8

高通项目编译命令如下:

./buildall_userdebug.sh E5527M all

五、source Android 编译环境

首先进入Android 源码根目录，执行source ./build/envsetup.sh,
如不source,后续则无法单编模块。

高通项目举例如下：

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ source ./build/envsetup.sh including device/generic/car/vendorsetup.shincluding device/generic/mini-emulator-arm64/vendorsetup.shincluding device/generic/mini-emulator-armv7-a-neon/vendorsetup.shincluding device/generic/mini-emulator-x86_64/vendorsetup.shincluding device/generic/mini-emulator-x86/vendorsetup.shincluding device/generic/uml/vendorsetup.shincluding device/google/muskie/vendorsetup.shincluding device/google/taimen/vendorsetup.shincluding device/qcom/common/vendorsetup.shincluding device/qcom/qssi/vendorsetup.shincluding vendor/partner_gms/products/vendorsetup.shincluding vendor/qcom/opensource/core-utils/vendorsetup.shincluding vendor/qcom/proprietary/common/vendorsetup.shincluding vendor/qcom/proprietary/prebuilt_HY11/vendorsetup.shCreated 9 symlinks out of 9 mapped links..including sdk/bash_completion/adb.bashTest@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

六、lunch 所需的编译项目

执行 lunch 命令，查看所有编译项目列表，然后选择编译项目。
高通项目举例如下：

1. lunch ,然后选择所需编译分支

Test@Test:/Test/Qualcomm_p/E7M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ lunchYou're building on LinuxLunch menu... pick a combo:     1. aosp_arm-eng     2. aosp_arm64-eng     3. aosp_mips-eng     ... ...     40. msm8937_64-userdebug     41. msm8937_64-user     ... ...     65. taimenb2-userdebug// 选择要编译的分支名Which would you like? [aosp_arm-eng] msm8937_64-userdebugdevice/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel" ... ...OUT_DIR=out============================================Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

2. 直接lunch 分支

比如我们需要编译msm8937_64-userdebug项目，其实我们可以执行最简单的方法,直接lunch这个项目所排列的位置，比如lunch 40

Test@Test:/Test/Qualcomm_p/E7M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ lunch 40device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"============================================PLATFORM_VERSION_CODENAME=RELPLATFORM_VERSION=9TARGET_PRODUCT=msm8937_64... ...HOST_CROSS_2ND_ARCH=x86_64HOST_BUILD_TYPE=releaseBUILD_ID=PKQ1.190601.001OUT_DIR=out============================================Test@Test:/Test/Qualcomm_p/27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

七、单编模块

我们常用 mmm 以及mm 来及对单模块进行编译。
mmm 与mm 主要区别在于你当前所在的目录位置。
如果当前正在所要编译模块的地方（需要有android.mk文件，才可以进行），请使用 mm，否则使用mmm。

高通项目举例如下：

1. mmm使用举例（此时不在FM 目录）

比如单编FM，不在FM目录下，需要执行mmm vendor/qcom/opensource/commonsys/fm/fmapp2/

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ mmm vendor/qcom/opensource/commonsys/fm/fmapp2//Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android/vendor/qcom/opensource/commonsys/fm/fmapp2/Restriction Checker not present, skipping..device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"============================================... ...OUT_DIR=out============================================QSSI: not enabled for msm8937_64 target as vendor/qcom/proprietary/release/QSSI/QSSI_enforced_targets_list.txt was not found.... ...#### build completed successfully (7 seconds) ####Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

2. mm使用举例(在FM 目录下)

比如单编FM，在FM目录下，需要执行mm

Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ cd  vendor/qcom/opensource/commonsys/fm/fmapp2/Test@Test:/Test/Qualcomm_p/E27M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android/vendor/qcom/opensource/commonsys/fm/fmapp2$ mmRestriction Checker not present, skipping..device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"============================================PLATFORM_VERSION_CODENAME=RELPLATFORM_VERSION=9... ...OUT_DIR=out============================================QSSI: not enabled for msm8937_64 target as vendor/qcom/proprietary/release/QSSI/QSSI_enforced_targets_list.txt was not found.ninja: no work to do.... ...build/make/core/base_rules.mk:412: warning: ignoring old commands for target `out/target/product/msm8937_64/vendor/lib64/hw/fingerprint.default.so'ninja: no work to do.#### build completed successfully (41 seconds) ####Test@Test:/Test/Qualcomm_p/E7M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android/vendor/qcom/opensource/commonsys/fm/fmapp2$

八、 push 模块验证修改是否生效

1. 使用debug版本，挂载手机

adb shell getprop ro.build.type 主要用来查看当前使用的版本，调试只能使用debug 版本，user版本无法调试。

高通项目举例如下：

C:\Users\Administrator>adb shell getprop ro.build.typeuserdebugC:\Users\Administrator>adb rootC:\Users\Administrator>adb remountremount succeededC:\Users\Administrator>

2.将生成的单模块编译的apk 拷贝到桌面并push到手机中

adb push 本地文件手机目录
adb push主要用来替换手机中的apk，调试验证单编是否生效。

高通 FM 举例如下：

C:\Users\Administrator>adb push C:\Users\Administrator\Desktop\FM2.apk /system/app/FM2C:\Users\Administrator\Desktop\FM2.apk: 1 file pushed. 9.7 MB/s (861880 bytes in 0.085s)C:\Users\Administrator>

3. 清除 push apk 的存储数据

adb shell pm clear 包名
用来清除当前包名的数据。
比如：adb shell pm clear com.caf.fmradio

高通 FM apk举例如下：

C:\Users\Administrator>adb shell dumpsys activity | findstr Run    Running activities (most recent first):        Run #0: ActivityRecord{3bc8d7d u0 com.caf.fmradio/.FMRadio t52}    Running activities (most recent first):        Run #0: ActivityRecord{89df584 u0 com.android.launcher3/com.android.searchlauncher.SearchLauncher t51}C:\Users\Administrator>adb shell pm clear com.caf.fmradioSuccessC:\Users\Administrator>

参考文献：

【腾讯文档】Android Framework 知识库
https://docs.qq.com/doc/DSXBmSG9VbEROUXF5

友情推荐：

Android 开发干货集锦

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