CODEWITHSUNDEEP
c++android-studioandroid-ndklldb
PadThai
PadThai

Reputation: 245

How to get NDK debugging to work in Android Studio?

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
}

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

    2. Put breakpoints in C++ code

    3. 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

Upvotes: 23

Views: 36777

Answers (7)

Martin Zeitler
Martin Zeitler

Reputation: 76799

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

Run/Debug Configurations

Upvotes: 15

Ciro Santilli OurBigBook.com
Ciro Santilli OurBigBook.com

Reputation: 384124

Android Studio 3

Android Studio 3 makes the whole process trivial.

To start, get your hands on a simple example app such as: https://github.com/googlesamples/android-ndk/tree/2020d9674a6601e8219eed2921f5028beb856a24/hello-gl2/

Then just set breakpoints, either on C++ or Java, and do: Run > Debug

You can also step into native calls from Java and fall in the C++ code.

enter image description here

Upvotes: 1

Hong
Hong

Reputation: 546

  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.

Upvotes: 9

sunalong
sunalong

Reputation: 56

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

Upvotes: 1

Gerry
Gerry

Reputation: 1233

this codelab might help:

https://codelabs.developers.google.com/codelabs/android-studio-jni/index.html?index=..%2F..%2Findex#4

debug is at step 5

Upvotes: -1

Jomo Fisher
Jomo Fisher

Reputation: 621

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

Upvotes: 2

VitalyD
VitalyD

Reputation: 289

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

Upvotes: 4

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