GCC sanitizer with CMake

gistfile1.md

For memory leaks

Build in CMake with these params:

CMAKE_CXX_FLAGS:STRING= -fsanitize=address  -fsanitize=leak -g
CMAKE_C_FLAGS:STRING=-fsanitize=address  -fsanitize=leak -g
CMAKE_EXE_LINKER_FLAGS:STRING=-fsanitize=address  -fsanitize=leak
CMAKE_MODULE_LINKER_FLAGS:STRING=-fsanitize=address  -fsanitize=leak

Which can be done with:

cmake .. -DCMAKE_CXX_FLAGS="-fsanitize=address  -fsanitize=leak -g" -DCMAKE_C_FLAGS="-fsanitize=address  -fsanitize=leak -g" -DCMAKE_EXE_LINKER_FLAGS="-fsanitize=address  -fsanitize=leak" -DCMAKE_MODULE_LINKER_FLAGS="-fsanitize=address  -fsanitize=leak"

Then run with:

export ASAN_OPTIONS=fast_unwind_on_malloc=0

For multithreading issues

Which can be done with:

cmake .. -DCMAKE_CXX_FLAGS="-fsanitize=thread -g" -DCMAKE_C_FLAGS="-fsanitize=thread -g" -DCMAKE_EXE_LINKER_FLAGS="-fsanitize=thread" -DCMAKE_MODULE_LINKER_FLAGS="-fsanitize=thread"

Or in a colcon environment:

# colcon_defaults.yaml
build:
  symlink-install: true
  cmake-args:
    - "-DCMAKE_BUILD_TYPE=RelWithDebInfo"
    - "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
    - -DCMAKE_CXX_FLAGS=-fsanitize=thread -g
    - -DCMAKE_C_FLAGS=-fsanitize=thread -g
    - -DCMAKE_EXE_LINKER_FLAGS=-fsanitize=thread
    - -DCMAKE_MODULE_LINKER_FLAGS=-fsanitize=thread

these seems to not work if i have a Makefile instead of a CMakeLists.txt.
I think this should work tought if you put this at the beginning of the file: (deny/confirm?)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fsanitize=leak -g")