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# Set appropriate compiler and linker flags for sanitizers.
#
# Usage of this module:
# enable_sanitizers("address;leak")
# Add flags
macro(enable_sanitizer sanitizer)
if(${sanitizer} MATCHES "address")
find_package(ASan)
set(SAN_COMPILE_FLAGS "${SAN_COMPILE_FLAGS} -fsanitize=address")
if (ASan_FOUND)
link_libraries(${ASan_LIBRARY})
endif()
elseif(${sanitizer} MATCHES "thread")
find_package(TSan)
set(SAN_COMPILE_FLAGS "${SAN_COMPILE_FLAGS} -fsanitize=thread")
if (TSan_FOUND)
link_libraries(${TSan_LIBRARY})
endif()
elseif(${sanitizer} MATCHES "leak")
find_package(LSan)
set(SAN_COMPILE_FLAGS "${SAN_COMPILE_FLAGS} -fsanitize=leak")
if (LSan_FOUND)
link_libraries(${LSan_LIBRARY})
endif()
elseif(${sanitizer} MATCHES "undefined")
find_package(UBSan)
set(SAN_COMPILE_FLAGS "${SAN_COMPILE_FLAGS} -fsanitize=undefined -fno-sanitize-recover=undefined")
if (UBSan_FOUND)
link_libraries(${UBSan_LIBRARY})
endif()
else()
message(FATAL_ERROR "Santizer ${sanitizer} not supported.")
endif()
endmacro()
macro(enable_sanitizers SANITIZERS)
# Check sanitizers compatibility.
# Idealy, we should use if(san IN_LIST SANITIZERS) ... endif()
# But I haven't figure out how to make it work.
foreach ( _san ${SANITIZERS} )
string(TOLOWER ${_san} _san)
if (_san MATCHES "thread")
if (${_use_other_sanitizers})
message(FATAL_ERROR
"thread sanitizer is not compatible with ${_san} sanitizer.")
endif()
set(_use_thread_sanitizer 1)
else ()
if (${_use_thread_sanitizer})
message(FATAL_ERROR
"${_san} sanitizer is not compatible with thread sanitizer.")
endif()
set(_use_other_sanitizers 1)
endif()
endforeach()
message("Sanitizers: ${SANITIZERS}")
foreach( _san ${SANITIZERS} )
string(TOLOWER ${_san} _san)
enable_sanitizer(${_san})
endforeach()
message("Sanitizers compile flags: ${SAN_COMPILE_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SAN_COMPILE_FLAGS}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SAN_COMPILE_FLAGS}")
endmacro()
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