How to get NDK debugging to work in Android Studio?

Question

Android Studio doesn't stop at breakpoints in C++ code, this is what i've done so far :

1. In AndroidManifest.xml :

   android:debuggable="true"
   

2. In build.gradle (this may be the problem):

   sourceSets.main {
     jniLibs.srcDir 'src/main/libs'
     jni.srcDirs = []
   }
   
   task ndkBuild(type: Exec) {
     commandLine android.ndkDirectory.getAbsolutePath() + '\\' + 'ndk-build.cmd', '-C', file('src/main/jni').absolutePath, 'NDK_DEBUG=1'
   }
   
   tasks.withType(JavaCompile) {
     compileTask -> compileTask.dependsOn ndkBuild
   }
   

   3. Configured the application as a native application on Android Studio

   4. Put breakpoints in C++ code

   5. Debug the app

This seems to work because it is saying : "Now Launching Native Debug Session" moreover I can pause the app with the stop button but no breakpoint is working.

Thank you for your help

Solution 1

By the syntax of your build.gradle looks like you don't use the experimental plugin for gradle, without it you wont be able to debug native c/c++ in android studio. For more information read this : Android NDK Preview

Solution 2

With LLDB installed, one has native / dual debugging available.

Solution 3

1. In Run->Debug Configuration "Debugger" tab, choose Debug type as "Native". In the field of "Before launch", if Android studio reports conflicts, accept the recommendation for 'fix' it. Android studio will download lldb library.

2. click on the 'debug' bottom and wait until debugger attached to the process.

3. now you can see the variables in the debug windown.

Solution 4

If you're still looking, Android Studio has recently added support for direct integration of ndk-build and CMake projects: http://tools.android.com/tech-docs/external-c-builds

Kind regards, Jomo

Solution 5

you can try this:

1.in app/build.gradle:

at dependencies label:

releaseCompile project(path:':youModuleName',configuration:'release')
debugCompile project(path:':youModuleName',configuration:'debug')

2.in youModule/build.gradle:

at android label:

publishNonDefault true

demo:

https://github.com/sunalong/JNIDemo

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Comments

[Mihai Timar]

I think people downvoted because your answer isn't an answer. It doesn't explain much and just provides a link. it would be better to provide the information pertinent to the question directly inline, even if it can be found at that link. Something like: "Android studio 3 makes this process easier by providing direct integration with ndk-build and CMake. With lldb installed and your project configured with one of the 2 android studio will allow dual debugging. Here's a sample project usign CMake: ..."