Android NDK - Library not found CANNOT LINK EXECUTABLE - how to set LD_LIBRARY_PATH?

Question

I have an Android activity where I'm executing NDK compiled code (command line program) with: ``` Runtime.getRuntime().exec(myCommand); ``` and load the needed shared libraries with: ``` static { System.loadLibrary(myLib); } ``` but when running my project and printing the output from error stream I get the following error: ``` link_image[1963]: 7520 could not load needed library 'libmyLib.so' for './myCommand' (load_library[1105]: Library 'libmyLib.so' not found)CANNOT LINK EXECUTABLE ``` I assure `libmyLib.so` does exist in my project under `libs/armeabi/` directory and it's copied to my Android device under `/data/data/myProject.path.package/lib/` directory. Owner and group of both executable and library are `system:system` and permissions are ok as well. When executing the command from adb shell in the beginning I get the same error but then I can set `LD_LIBRARY_PATH` and it runs ok: ``` ./adb shell export LD_LIBRARY_PATH=/data/data/myProject.path.package/lib:$LD_LIBRARY_PATH /da…

Accepted Answer

Solved: you can use `exec(String prog, String[] envp)`. In my case this was:

```
String[] envp = {"LD_LIBRARY_PATH=/data/data/cse.ecg.dcmtk/lib:$LD_LIBRARY_PATH"};
Runtime.getRuntime().exec(myCommand, envp);
```

The issue now is that with `exec()` the process executed can't resolve hostnames (it does from adb shell; Internet permission is set). Any hint about that?

Android NDK - Library not found CANNOT LINK EXECUTABLE - how to set LD_LIBRARY_PATH?

Solution

Problem