Enabling AddressSanitizer with Cmake

Question

I have a project which built by cmake. I want to build it with AddressSanitizer to detect memory leaks. I added these lines into the CMakeLists.txt:

set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address")
set (CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_STATIC_LINKER_FLAGS_DEBUG} -fno-omit-frame-pointer -fsanitize=address")

But it doesnt work some how (It doesnt show where i have memory leaks). I tested with a test application which definitely contains memory leaks, still nothing happened. Can somebody explain how should i do it ?

@OznOg Should it be "set (CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_STATIC_LINKER_FLAGS_DEBUG} -lasan -fno-omit-frame-pointer -fsanitize=address")" ? — Tuấn Phạm, Jun 17 '18 at 13:29
Variable `CMAKE_LINKER_FLAGS_DEBUG` has no special meaning for CMake. For set linker flags for executable target use [CMAKE_EXE_LINKER_FLAGS_DEBUG](https://cmake.org/cmake/help/v3.9/variable/CMAKE_EXE_LINKER_FLAGS_CONFIG.html). — Tsyvarev, Jun 17 '18 at 14:33
If you build the project with `make` (after `cmake` call), you may run `make VERBOSE=1` for see command lines used for compiling and linking. Compare them with command lines suggested for use address-sanitizer. — Tsyvarev, Jun 17 '18 at 18:47

score 4 · Answer 1 · answered Jan 13 '21 at 15:59

4

As an other option, it's possible to add sanitizers to target:

target_link_libraries(MyTarget PRIVATE -fsanitize=address)

Got from this answer, tested with cmake 3.6

answered Jan 13 '21 at 15:59

PolyGlot

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score 1 · Answer 2 · answered Aug 27 '20 at 14:27

1

try flags without _DEBUG.

    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-omit-frame-pointer -fsanitize=address")
    set (CMAKE_LINKER_FLAGS "${CMAKE_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=address")

answered Aug 27 '20 at 14:27

Maksym Rudenko

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Enabling AddressSanitizer with Cmake

2 Answers2