build error

[Tigerly]

Hello,

There is an error when I try to compile the project (use "make"). Would it be possible to help to check it?

Here is the error message: [ 75%] Building C object dataflow/runtime/CMakeFiles/runtime.dir/runtime.o cc: error: unrecognized argument to -fsanitize= option: ‘dataflow’ dataflow/runtime/CMakeFiles/runtime.dir/build.make:62: recipe for target 'dataflow/runtime/CMakeFiles/runtime.dir/runtime.o' failed make[2]: *** [dataflow/runtime/CMakeFiles/runtime.dir/runtime.o] Error 1 CMakeFiles/Makefile2:142: recipe for target 'dataflow/runtime/CMakeFiles/runtime.dir/all' failed make[1]: *** [dataflow/runtime/CMakeFiles/runtime.dir/all] Error 2 Makefile:83: recipe for target 'all' failed Thanks in advance!

[evilpan]

Note the following error message:

unrecognized argument to -fsanitize= option: ‘dataflow’ 

Which means you should (re)build your clang(compiler-rt) with DataFlowSanitizer enabled.

[Tigerly]

@pannzh Thanks so much for the reply.

Actually, when I try to do - 2). compile runtime library clang -g -fsanitize=dataflow ../dataflow/runtime/runtime.c \ -I../dataflow/runtime -c -o runtime.o It works well. The runtime.o has been generated. So, I guess my clang is OK.

However, when I try to do - 1). compile target source with clang clang -g -fsanitize=dataflow -std=c11 -Xclang -load -Xclang ../build/dataflow/libLoadStorePass.so -I../dataflow/runtime -c target.c -o target.o error: unable to load plugin '../build/dataflow/libLoadStorePass.so': '../build/dataflow/libLoadStorePass.so: undefined symbol: _ZN4llvm23EnableABIBreakingChecksE'

I'm a little bit confused about that...

[evilpan]

What's your LLVM version? I built and tested this pass with LLVM3.8, 3.9, 4.0, and maybe 5.0. Since LLVM introduce breaking changes from time to time, It's sugguested to use a dedicated version instead.