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# CMAKE_C_FLAGS_LSAN - Flags to use for C with lsan
# CMAKE_CXX_FLAGS_LSAN - Flags to use for C++ with lsan
# HAVE_LEAK_SANITIZER - True or false if the ASan build type is available
#
# https://github.com/arsenm/sanitizers-cmake
# The MIT License (MIT)
#
# Copyright (c)
# 2013 Matthew Arsenault
# 2015-2016 RWTH Aachen University, Federal Republic of Germany
#
include(CheckCCompilerFlag)
set(LEAK_SANITIZER_FLAG -fsanitize=leak)
# Set -Werror to catch "argument unused during compilation" warnings
set(CMAKE_REQUIRED_FLAGS "-Werror ${LEAK_SANITIZER_FLAG}") # Also needs to be a link flag for test to pass
check_c_compiler_flag("${LEAK_SANITIZER_FLAG}" HAVE_FLAG_LEAK_SANITIZER)
unset(CMAKE_REQUIRED_FLAGS)
if(NOT HAVE_FLAG_LEAK_SANITIZER)
set(HAVE_LEAK_SANITIZER NO)
return()
endif(NOT HAVE_FLAG_LEAK_SANITIZER)
set(HAVE_LEAK_SANITIZER YES)
set(CMAKE_C_FLAGS_LSAN "-O1 -g ${LEAK_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls"
CACHE STRING "Flags used by the C compiler during LSan builds."
FORCE)
set(CMAKE_CXX_FLAGS_LSAN "-O1 -g ${LEAK_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls"
CACHE STRING "Flags used by the C++ compiler during LSan builds."
FORCE)
set(CMAKE_EXE_LINKER_FLAGS_LSAN "${LEAK_SANITIZER_FLAG}"
CACHE STRING "Flags used for linking binaries during LSan builds."
FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_LSAN "${LEAK_SANITIZER_FLAG}"
CACHE STRING "Flags used by the shared libraries linker during LSan builds."
FORCE)
mark_as_advanced(CMAKE_C_FLAGS_LSAN
CMAKE_CXX_FLAGS_LSAN
CMAKE_EXE_LINKER_FLAGS_LSAN
CMAKE_SHARED_LINKER_FLAGS_LSAN)