Ancile

Steps to build:

Step 1: clone the repo

Step 2: Now in your llvm working directory, do the following steps

  - rm /path/to/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.cpp  
    ln -s /path/to/Ancile/src/CommonArgs.cpp /path/to/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.cpp 

  - rm /path/to/llvm/tools/clang/lib/CodeGen/BackendUtil.cpp
    ln -s /path/to/Ancile/src/BackendUtil.cpp /path/to/llvm/tools/clang/lib/CodeGen/BackendUtil.cpp
    
  - rm /path/to/llvm/tools/clang/lib/CodeGen/CGClass.cpp
    ln -s /path/to/Ancile/src/CGClass.cpp /path/to/llvm/tools/clang/lib/CodeGen/CGClass.cpp
    
  - rm /path/to/llvm/tools/clang/lib/CodeGen/CGCall.cpp
    ln -s /path/to/Ancile/src/CGCall.cpp /path/to/llvm/tools/clang/lib/CodeGen/CGCall.cpp
    
  - rm /path/to/llvm/tools/clang/lib/CodeGen/CGExpr.cpp
    ln -s /path/to/Ancile/src/CGExpr.cpp /path/to/llvm/tools/clang/lib/CodeGen/CGExpr.cpp

  - rm /path/to/llvm/tools/clang/include/clang/Basic/Sanitizers.def
    ln -s /path/to/Ancile/src/Sanitizers.def /path/to/llvm/tools/clang/include/clang/Basic/Sanitizers.def
    
  - rm /path/to/llvm/tools/clang/include/clang/Driver/SanitizerArgs.h
    ln -s /path/to/Ancile/src/SanitizerArgs.h /path/to/llvm/tools/clang/include/clang/Driver/SanitizerArgs.h
    
  - rm /path/to/llvm/include/llvm/InitializePasses.h
    ln -s /path/to/Ancile/src/InitializePasses.h /path/to/llvm/include/llvm/InitializePasses.h
    
  - rm /path/to/llvm/lib/Transforms/Instrumentation/CMakeLists.txt
    ln -s /path/to/Ancile/src/CMakeLists.txt /path/to/llvm/lib/Transforms/Instrumentation/CMakeLists.txt
    
  - rm /path/to/llvm/lib/Transforms/IPO/LowerTypeTests
    ln -s /path/to/Ancile/src/LowerTypeTests.cpp /path/to/llvm/lib/Transforms/IPO/LowerTypeTests.cpp

  - ln -s /path/to/Ancile/src/Ancile.cpp path/to/llvm/lib/Transforms/Instrumentation/Ancile.cpp
  - ln -s /path/to/Ancile/src/HexCFI.cpp path/to/llvm/lib/Transforms/Instrumentation/HexCFI.cpp

Step 3: a. Now add the runtime library

ln -s /path/to/Ancile/runtime/ancile  /path/to/llvm/projects/compiler-rt/lib/ancile
ln -s /path/to/Ancile/runtime/hexcfi  /path/to/llvm/projects/compiler-rt/lib/hexcfi

b. Add the following line in the CMakeLists.txt at /path/to/llvm/projects/compiler-rt/lib/

add_subdirectory(ancile)
add_subdirectory(hexcfi)

Step 4: cmake option for build cmake -GNinja
-DCMAKE_BUILD_TYPE=Release
-DCMAKE_C_COMPILER=clang
-DCMAKE_CXX_COMPILER=clang++
-DLLVM_ENABLE_ASSERTIONS=ON
-DLLVM_BUILD_TESTS=OFF
-DLLVM_BUILD_EXAMPLES=OFF
-DLLVM_INCLUDE_TESTS=OFF
-DLLVM_INCLUDE_EXAMPLES=OFF
-DBUILD_SHARED_LIBS=on
-DLLVM_TARGETS_TO_BUILD="X86"
-DCMAKE_C_FLAGS="-fstandalone-debug"
-DCMAKE_CXX_FLAGS="-fstandalone-debug"
../llvm

Step 5: Build command

ninja