CFG Builder
This script builds the control flow graph (CFG) of the whole program.
To use this, first you have to setup libafl_cc with LLVMPasses::DumpCfg pass.
Then, compile the program with env var CFG_OUTPUT_PATH. The llvm pass will dump the cfg of each module into CFG_OUTPUT_PATH directory.
After that, you can run CFG_OUTPUT_PATH=<directory> python3 build.py, and then you'll get the control flow graph in cfg.xdot and call graph in cg.xdot