CODEWITHSUNDEEP
androidcmakeandroid-ndkandroid-sourcendk-build
user3022690
user3022690

Reputation: 71

'ndk112' added in .so symbols when built on Android studio

I am building an Android application using Android.mk file. I will call this application as A1.

I am given a third party native library in the form of .so file that has Utility functions. I will call this library as N1. N1 is built on Android studio by the third party vendor.

When I include N1 in A1 and try to build A1 using Android.mk, the compilation fails due to symbol mismatch error.

When I checked about the symbol mismatch, here is the difference:

a. Sample Symbol generated by Android Studio: _ZNSt6__ndk112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm

b. Same symbol generated by Android.mk using the header files of N1 that is present in A1: _ZNSt6__basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm

The difference is, N1 has 'ndk112' added in each of its symbol. This can be seen if we open the .so file in Notepad++.

I searched a lot to check of there are any flags that can be used to fix this issue, but couldn't get any reference. Can someone help me in removing 'ndk112' from the symbols of a .so file generated using Android Studio.

Upvotes: 1

Views: 585

Answers (1)

Dan Albert
Dan Albert

Reputation: 10509

Same cause as https://stackoverflow.com/a/38798556/632035. N1 and A1 are using different STLs. They must use the same STL. You need to have A1 rebuilt with libc++.

Upvotes: 1

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