Required task

Optional task

Select compiler

LTO mode
(clang/clang++ 11+)

LLVM mode
(clang/clang++ 3.8+)

GCC_PLUGIN mode
(gcc 5+)

GCC/CLANG mode
(other)

Select options

Select options depending on
the compiler:

COMPCOV
(only LTO)

CmpLog
(only LTO)

selective instrumentation
(LTO, LLVM, GCC_PLUGIN)

Select sanitizer

Select one sanitizer
per instance:

ASAN
CFISAN
LSAN
MSAN
TSAN
UBSAN

Compile target source code

Compile target source code depending on the build system:

configure
CMake
Meson Build System
other

Modify target

All AFL++ compilers
do this automatically.