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LibAFL CC

LibAFL CC provides the functionalities to write compiler wrappers for LibAFL, by providing to the user a set of compiler extensions useful for instrumentation.

The online documentation for this crate is available here.

Currently, we support LLVM version 11 up to 17, but other versions may work. To install LLVM, use the official download page.

The LLVM tools (including clang, clang++) are needed (newer than LLVM 11.0.0 up to LLVM 17.0.0)

  • When compiling LLVM tools on Windows, you can try to compile LLVM with the below commands (tested on LLVM 16.0.6).
  • NOTE: This assumes you have Visual Studio 17 2022 and MSVC v143 Tools installed under "Individual Components"
## Start x64 Native Tools Command Prompt for VS 2022
RUN AS ADMINISTRATOR: %comspec% /k "C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat"

## Cloning the LLVM project repo
git clone https://github.com/llvm/llvm-project.git llvm

## Building Clang project first, the CMAKE_INSTALL_PREFIX is important here, make sure to select a folder path that doesn't contain any spaces in it
$ cmake -S llvm\llvm -B build -DLLVM_ENABLE_PROJECTS=clang -DLLVM_TARGETS_TO_BUILD=X86 -Thost=x64 -DCMAKE_INSTALL_PREFIX=C:\llvm
$ cd build
$ cmake --build . --target install --config release

## Building lld project first, the CMAKE_INSTALL_PREFIX is important here, make sure to select a folder path that doesn't contain any spaces in it
## Changing back to the previous directory
$ cd .. 
$ cmake -S llvm\llvm -B build -DLLVM_ENABLE_PROJECTS=lld -DLLVM_TARGETS_TO_BUILD=X86 -Thost=x64 -DCMAKE_INSTALL_PREFIX=C:\llvm
$ cd build
$ cmake --build . --target install --config release