和你一起終身學(xué)習(xí)，這里是程序員Android

經(jīng)典好文推薦，通過閱讀本文，您將收獲以下知識(shí)點(diǎn):

一、查看項(xiàng)目所在分支
二、切換到目標(biāo)分支
三、查看當(dāng)前所在分支
四、編譯Android源碼
五、source Android 編譯環(huán)境
六、lunch 所需的編譯項(xiàng)目
七、單編 模塊
八、push 模塊 驗(yàn)證修改是否生效

一、查看項(xiàng)目所在分支

git branch -a
表示：查看并列出當(dāng)前項(xiàng)目所有分支

高通項(xiàng)目舉例如下：

Test@Test:/Test/Qualcomm_p/E5527M_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_engineering
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

二、切換到目標(biāo)分支

git checkout 分支名
表示：切換到某個(gè)分支。

高通項(xiàng)目舉例如下：
git checkout linux_android_development

Test@Test:/Test/Qualcomm_p/E5527M_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/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git checkout linux_android_development

三、查看當(dāng)前所在分支

git branch
表示：查看當(dāng)前所在分支

高通項(xiàng)目舉例如下：

Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ git branch 
* linux_android_development
  master
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

四、編譯Android源碼

Android?源碼編譯，每個(gè)項(xiàng)目由于腳本各不相同，編譯的命令 有時(shí)候也會(huì)有說差異。

google 官方編譯命令如下

1.source ./build/envsetup.sh
2.lunch 項(xiàng)目
3.make -j8

高通項(xiàng)目編譯命令 如下:

./buildall_userdebug.sh E5527M all

五、source Android 編譯環(huán)境

首先進(jìn)入Android?源碼根目錄，執(zhí)行source ./build/envsetup.sh,
如不source,后續(xù)則無法單編模塊。

高通項(xiàng)目舉例如下：

Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ source ./build/envsetup.sh 
including device/generic/car/vendorsetup.sh
including device/generic/mini-emulator-arm64/vendorsetup.sh
including device/generic/mini-emulator-armv7-a-neon/vendorsetup.sh
including device/generic/mini-emulator-x86_64/vendorsetup.sh
including device/generic/mini-emulator-x86/vendorsetup.sh
including device/generic/uml/vendorsetup.sh
including device/google/muskie/vendorsetup.sh
including device/google/taimen/vendorsetup.sh
including device/qcom/common/vendorsetup.sh
including device/qcom/qssi/vendorsetup.sh
including vendor/partner_gms/products/vendorsetup.sh
including vendor/qcom/opensource/core-utils/vendorsetup.sh
including vendor/qcom/proprietary/common/vendorsetup.sh
including vendor/qcom/proprietary/prebuilt_HY11/vendorsetup.sh
Created 9 symlinks out of 9 mapped links..
including sdk/bash_completion/adb.bash
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

六、lunch 所需的編譯項(xiàng)目

執(zhí)行?lunch?命令，查看所有 編譯項(xiàng)目列表，然后選擇 編譯項(xiàng)目。
高通項(xiàng)目 舉例如下：

1. lunch ,然后選擇所需編譯分支

Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ lunch

You're building on Linux

Lunch 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
// 選擇要編譯的分支名
Which would you like? [aosp_arm-eng] msm8937_64-userdebug

device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"

 ... ...
OUT_DIR=out
============================================
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

2. 直接lunch 分支

比如我們需要編譯msm8937_64-userdebug項(xiàng)目，其實(shí)我們可以執(zhí)行最簡單的方法,直接lunch這個(gè)項(xiàng)目所排列的位置，比如lunch 40

Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ lunch 40
device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=9
TARGET_PRODUCT=msm8937_64
... ...

HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=PKQ1.190601.001
OUT_DIR=out
============================================
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

七、單編 模塊

我們常用?mmm?以及mm?來及對(duì)單模塊進(jìn)行編譯。
mmm?與mm?主要區(qū)別在于你當(dāng)前所在的目錄位置。
如果當(dāng)前正在所要編譯模塊的地方（需要有android.mk文件，才可以進(jìn)行），請使用?mm，否則使用mmm。

高通項(xiàng)目舉例如下：

1. mmm使用舉例（此時(shí)不在FM 目錄）

比如單編FM，不在FM目錄下，需要執(zhí)行mmm vendor/qcom/opensource/commonsys/fm/fmapp2/

Test@Test:/Test/Qualcomm_p/E5527M_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/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$

2. mm使用舉例(在FM 目錄下)

比如單編FM，在FM目錄下，需要執(zhí)行mm

Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android$ cd  vendor/qcom/opensource/commonsys/fm/fmapp2/
Test@Test:/Test/Qualcomm_p/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android/vendor/qcom/opensource/commonsys/fm/fmapp2$ mm
Restriction Checker not present, skipping..
device/qcom/msm8937_64/msm8937_64.mk:42: warning: "Build with 4.9 kernel"
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_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/E5527M_MSM8917_QM215_r26/LA.UM.7.6.2/LINUX/android/vendor/qcom/opensource/commonsys/fm/fmapp2$

八、 push 模塊 驗(yàn)證修改是否生效

1. 使用debug版本，掛載手機(jī)

adb shell getprop ro.build.type?主要用來查看當(dāng)前使用的版本，調(diào)試只能使用debug?版本，user版本無法調(diào)試。

高通項(xiàng)目舉例如下：

C:\Users\Administrator>adb shell getprop ro.build.type
userdebug

C:\Users\Administrator>adb root

C:\Users\Administrator>adb remount
remount succeeded

C:\Users\Administrator>

2.將生成的單模塊編譯的apk 拷貝到桌面并push到手機(jī)中

adb push 本地文件 手機(jī)目錄
adb push主要用來 替換手機(jī)中的apk，調(diào)試驗(yàn)證單編是否生效。

高通?FM?舉例如下：

C:\Users\Administrator>adb push C:\Users\Administrator\Desktop\FM2.apk /system/app/FM2
C:\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 的存儲(chǔ)數(shù)據(jù)

adb shell pm clear 包名
用來清除當(dāng)前包名的數(shù)據(jù)。
比如：adb shell pm clear com.caf.fmradio

高通?FM apk舉例如下：

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.fmradio
Success

C:\Users\Administrator>

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