Error in instrumentation with distance file about aflgo HOT 5 CLOSED

Hi Thuanpv,

I followed exactly all the steps in the README and I installed LLVM and Clang from building the source code of version 4.0.

I have solved this issue by adding a pointer cast IR to MapDistPtr and MapCntPtr as follows:
MapDistPtr = IRB.CreatePointerCast(MapDistPtr, LargestType->getPointerTo());
MapCntPtr = IRB.CreatePointerCast(MapCntPtr, LargestType->getPointerTo());

It seems that by calling IRB.CreateGEP(MapPtr, MapDistLoc), the MapDistPtr is of integer type that has only 8 bit width. The element type of MapDistPtr is not compatible with LargestType.

Now there is no any errors. But could you please confirm whether my modification is right?
Thank you.

from aflgo.

@fuzzer123 The solution worked for me too !

from aflgo.

I cannot reproduce this issue even though I am using LLVM and Clang 4.0 like you. Can you provide more information like did you follow exactly all steps in the README or you customized some step? Moreover, how did you install LLVM and Clang?

from aflgo.

The solution above worked for me as well.

from aflgo.

Updated tutorial in commit 5e36152.

from aflgo.