# autofdo

**Repository Path**: benniaobufeijiushiji/autofdo

## Basic Information

- **Project Name**: autofdo
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-07-08
- **Last Updated**: 2021-07-08

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README


1. Install prerequisite
***********************
sudo apt install libunwind-dev libgflags-dev libssl-dev libelf-dev protobuf-compiler

To build autofdo tool for llvm, it needs llvm major version >= 10. You can either install llvm using command like "sudo apt install llvm-10", or you can build the latest llvm from source.

To build autofdo tool for gcc, no llvm installation is needed.

2. Commands
***********
2.1 Build autofdo tool for llvm
  2.1.1 If build llvm from source
    - git clone https://github.com/llvm/llvm-project.git
    - mkdir build
    - cd build
    - cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON -DBUILD_SHARED_LIBS=OFF -DLLVM_PARALLEL_LINK_JOBS=1 -DLLVM_INCLUDE_TESTS=OFF -DLLVM_ENABLE_RTTI=ON -DCMAKE_INSTALL_PREFIX=/path/to/llvm/install -DLLVM_ENABLE_PROJECTS="clang" ../llvm-project
    - ninja
    - ninja install

  2.1.2 Build autofdo tools
    - git clone --recursive https://github.com/google/autofdo.git
    - cd autofdo
    - mkdir build
    - cd build
    - cmake -G Ninja -DCMAKE_INSTALL_PREFIX=. -DLLVM_PATH=/path/to/llvm/install ../   # Note: "-DCMAKE_INSTALL_PREFIX=." must be used, because there is a bug in the basil cmakelist.
    - ninja
    - ninja test

2.2 Build autofdo tool for gcc
  2.2.1 Build autofdo tools
    - git clone --recursive https://github.com/google/autofdo.git
    - cd autofdo
    - mkdir build
    - cd build
    - cmake -G Ninja -DCMAKE_INSTALL_PREFIX=. ../   # Note: "-DCMAKE_INSTALL_PREFIX=." must be used, because there is a bug in the basil cmakelist.
    - ninja