Android ndk not bundle v8 .a file symbols

Question

I have a project which similar too J2V8 which bundle v8 to android. But after compile J2V8 has all v8 symbols but similar project lose all v8 symbols. You can check the original J2V8.so here by using command

nm -D libj2v8.so | grep "GetIsolate"

you can get something like

003530fc T _ZN2v815SnapshotCreator10GetIsolateEv
003613c4 T _ZN2v86Object10GetIsolateEv
0035f78c T _ZN2v87Context10GetIsolateEv
0038c354 W _ZNK2v88internal10HeapObject10GetIsolateEv
00503a78 T _ZNK2v88internal11MessageImpl10GetIsolateEv
00503b4c T _ZNK2v88internal16EventDetailsImpl10GetIsolateEv

But after compile sample project, the related output is none.

Answer 1

For Android Studio project, either library .aar or application .apk, during the build process, there is a step stripping the debug symbols of dynamic shared libs, i.e. the .so.

If you want to keep all the symbols un-removed, then you can add below configuration into your build.gradle.

android {
    ...
    packagingOptions{
        doNotStrip "*/armeabi/*.so"
        doNotStrip "*/arm64-v8a/*.so"
        doNotStrip "*/armeabi-v7a/*.so"
        doNotStrip "*/x86/*.so"
        doNotStrip "*/x86_64/*.so"
    } 
    ...
}