getcaller.js

function getCaller(context) {
    return DebugSymbol.fromAddress(Thread.backtrace(context, Backtracer.ACCURATE)[0]);
}

offset.js

Interceptor.attach(Module.findBaseAddress("libCheckYourKey.so").add(0x116D0), {
  onLeave: function(retval) {
    console.log("onleave");
  }
});

replace.js

var strcmp = new NativeFunction(Module.findExportByName('libc.so', 'strcmp'), 'int', ['pointer', 'pointer']);

Interceptor.replace(strcmp, new NativeCallback(function (prop_ptr, buf_ptr) {
    var prop = Memory.readUtf8String(prop_ptr);
    var buf = Memory.readUtf8String(buf_ptr);
    console.log('strcmp(' + prop + ', ' + buf + ')');
    return strcmp(prop_ptr, buf);
}, 'int', ['pointer', 'pointer']));