导入小部分aosp源码，在Android studio调试

一、生成ipr，imi，iws

这部分，不过多介绍。网上很多。
source build/envsetup.sh -> lunch xxx -> make idegen -> source development/tools/idegen/idegen.sh

二、导入

大部分人代码都在远程服务器，在本地也可以
在本地新建一个文件夹 将需要的代码拷入 ，例如我的是，
注意：并不是将frameworks packages中的代码全部拷入，而是只拷贝需要的部分
拷入的代码结构需保持一致，
我只拷贝了
frameworks\opt\telephony
packages\apps\Dialer
\packages\services\Telecomm
packages\services\Telephony

关键：修改android.imi
可以看到，android.imi中导入了很多目录，我们只需要我们需要导入的部分,将其他的都去除

<?xml version="1.0" encoding="UTF-8"?>
<module relativePaths="true" type="JAVA_MODULE" version="4">
  <component name="FacetManager">
    <facet type="android" name="Android">
      <configuration />
    </facet>
  </component>
  <component name="NewModuleRootManager" inherit-compiler-output="true">
    <exclude-output />
    <orderEntryProperties />
    <content url="file://$MODULE_DIR$">
      <sourceFolder url="file://$MODULE_DIR$/./frameworks/opt/telephony/src/java" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/./frameworks/opt/telephony/testing/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./frameworks/opt/telephony/tests/telephonytests/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/apps/Dialer/java" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/src" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/testapps/callaudiotest/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/testapps/carmodedialer/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/testapps/companionapp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/testapps/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telecomm/tests/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/sip/src" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/src" isTestSource="false" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/EmbmsServiceTestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/EmbmsTestDownloadApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/EmbmsTestStreamingApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/GbaTestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/ImsTestService/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/SmsManagerTestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/TelephonyManagerTestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/TelephonyRegistryTestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/TestRcsApp/TestApp/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/TestRcsApp/aosp_test_rcsclient/javatests" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/testapps/TestRcsApp/aosp_test_rcsclient/src" isTestSource="true" />
      <sourceFolder url="file://$MODULE_DIR$/./packages/services/Telephony/tests/src" isTestSource="true" />
    </content>
    <orderEntry type="jdk" jdkName="Android API 31 Platform" jdkType="Android SDK" />
    <orderEntry type="module-library" exported="">
      <library>
        <CLASSES>
          <root url="file://$MODULE_DIR$/frameworks" />
        </CLASSES>
        <JAVADOC />
        <SOURCES>
          <root url="file://$MODULE_DIR$/frameworks" />
          <root url="file://$MODULE_DIR$/frameworks/opt/telephony/src/java" />
          <root url="file://$MODULE_DIR$/frameworks/opt/telephony/testing/src" />
          <root url="file://$MODULE_DIR$/frameworks/opt/telephony/tests/telephonytests/src" />
        </SOURCES>
      </library>
    </orderEntry>
    <orderEntry type="module-library" exported="">
      <library>
        <CLASSES />
        <JAVADOC />
        <SOURCES>
          <root url="file://$MODULE_DIR$/packages/apps/Dialer/java" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/testapps/callaudiotest/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/testapps/carmodedialer/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/testapps/companionapp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/testapps/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telecomm/tests/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/sip/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/EmbmsServiceTestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/EmbmsTestDownloadApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/EmbmsTestStreamingApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/GbaTestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/ImsTestService/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/SmsManagerTestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/TelephonyManagerTestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/TelephonyRegistryTestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/TestRcsApp/TestApp/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/TestRcsApp/aosp_test_rcsclient/javatests" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/testapps/TestRcsApp/aosp_test_rcsclient/src" />
          <root url="file://$MODULE_DIR$/packages/services/Telephony/tests/src" />
        </SOURCES>
      </library>
    </orderEntry>
    <orderEntry type="sourceFolder" forTests="false" />
  </component>
</module>

用android studio打开android.ipr就可以了。

三、调试

导入之后只能查看，还不能调试，需要进行一些设置。
project Structure中添加一个没有classpath的JDK，并设置为编译源码平台（上面我们导入的源码版本）的jdk

设置 Modules
点击+号，将我们的源码添加进去，并置顶。点击apply，就可以源码跳转了。

模拟器加载我们自己源码编译的镜像，参考 android studio avd加载自己编译的镜像：https://blog.youkuaiyun.com/qq_41285455/article/details/125010654
打开模拟器，attach到自己需要调试的进程。

设置断点。可以看到断点可用。

调试进入断点。

参考：
https://blog.youkuaiyun.com/Wbl752134268/article/details/117357177
https://blog.youkuaiyun.com/Wbl752134268/article/details/106692470
https://www.cnblogs.com/Lefter/p/4176991.html