ollvm

Prerequisites

• CMake 3.31.1
• Visual Studio 2022 (Desktop Development with C++)
  • MSVC v143 - VS 2022 C++ x64/x86 build tools
  • Windows 11 SDK (10.0.26100.0)
  • C++ CMake tools for Windows
• Rust Nightly 1.85.0

Build

1. Clone https://github.com/rust-lang/llvm-project/tree/rustc/19.1-2024-09-17
2. Create build directory beside llvm folder.

mkdir build
cd build

3. Generate visual studio solutions

cmake -G "Visual Studio 17 2022" ../llvm -DCMAKE_INSTALL_PREFIX="./llvm_x64" -DCMAKE_CXX_STANDARD=17 -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD="X86" -DLLVM_EXPORT_SYMBOLS_FOR_PLUGINS=ON -DLLVM_ENABLE_BACKTRACES=OFF -DLLVM_INCLUDE_BENCHMARKS=OFF -DLLVM_INCLUDE_EXAMPLES=OFF -DLLVM_INCLUDE_TESTS=OFF -DLLVM_INCLUDE_TOOLS=OFF -DLLVM_INSTALL_UTILS=OFF 

4. Build and install (move the content of llvm_x64 folder to C:/Program Files/LLVM)

cmake --build . -j4 --config Release
cmake --install .

Usage

1. Put ollvm.dll inside your cargo (where Cargo.toml located).
2. Add this to your Cargo.toml. (Due to this you'll need nightly toolchain.)

cargo-features = ["profile-rustflags"]
rustflags = [
    "-Zllvm-plugins=ollvm.dll",
    "-Cpasses=irobf(irobf-indbr,irobf-icall,irobf-indgv,irobf-cff,irobf-cse,irobf-cie,irobf-cfe)",
]

References

[https://github.com/0xlane/ollvm-rust] [https://github.com/KomiMoe/Arkari]