ceph/cmake/modules/FindSanitizers.cmake
Kefu Chai 714fbf64ae cmake/modules: replace ";" with " " in compile flags
as the flags should be a string, not a list

tested using

cmake -DCMAKE_LINKER=gold -DWITH_ASAN=ON -DWITH_ASAN_LEAK=ON \
-DCMAKE_BUILD_TYPE=Debug

on ubuntu xenial

without this change, cmake will fail with following warning:

CMake Error at src/CMakeLists.txt:112 (message):
  The compiler /usr/bin/c++ has no C++17 support.

-- Configuring incomplete, errors occurred!

Signed-off-by: Kefu Chai <kchai@redhat.com>
2019-05-31 16:19:08 +08:00

79 lines
2.8 KiB
CMake

if(NOT Sanitizers_FIND_COMPONENTS)
set(Sanitizers_FIND_COMPONENTS
address undefined_behavior)
endif()
if(HAVE_JEMALLOC)
message(WARNING "JeMalloc does not work well with sanitizers")
endif()
set(Sanitizers_COMPILE_OPTIONS)
foreach(component ${Sanitizers_FIND_COMPONENTS})
if(component STREQUAL "address")
set(Sanitizers_address_COMPILE_OPTIONS "-fsanitize=address")
elseif(component STREQUAL "leak")
set(Sanitizers_leak_COMPILE_OPTIONS "-fsanitize=leak")
elseif(component STREQUAL "thread")
if ("address" IN_LIST ${Sanitizers_FIND_COMPONENTS} OR
"leak" IN_LIST ${Sanitizers_FIND_COMPONENTS})
message(SEND_ERROR "Cannot combine -fsanitize-leak w/ -fsanitize-thread")
elseif(NOT CMAKE_POSITION_INDEPENDENT_CODE)
message(SEND_ERROR "TSan requires all code to be position independent")
endif()
set(Sanitizers_Thread_COMPILE_OPTIONS "-fsanitize=thread")
elseif(component STREQUAL "undefined_behavior")
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88684
set(Sanitizers_undefined_behavior_COMPILE_OPTIONS "-fsanitize=undefined;-fno-sanitize=vptr")
else()
message(SEND_ERROR "Unsupported sanitizer: ${component}")
endif()
list(APPEND Sanitizers_COMPILE_OPTIONS "${Sanitizers_${component}_COMPILE_OPTIONS}")
endforeach()
if(Sanitizers_address_COMPILE_OPTIONS OR Sanitizers_leak_COMPILE_OPTIONS)
# ASAN_LIBRARY will be read by ceph.in to preload the asan library
find_library(ASAN_LIBRARY
NAMES
libasan.so.5
libasan.so.4
libasan.so.3)
endif()
if(Sanitizers_COMPILE_OPTIONS)
list(APPEND Sanitizers_COMPILE_OPTIONS
"-fno-omit-frame-pointer")
endif()
string (REPLACE ";" " " Sanitizers_COMPILE_OPTIONS "${Sanitizers_COMPILE_OPTIONS}")
include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_FLAGS ${Sanitizers_COMPILE_OPTIONS})
set(CMAKE_REQUIRED_LIBRARIES ${Sanitizers_COMPILE_OPTIONS})
check_cxx_source_compiles("int main() {}"
Sanitizers_ARE_SUPPORTED)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Sanitizers
REQUIRED_VARS
Sanitizers_COMPILE_OPTIONS
Sanitizers_ARE_SUPPORTED)
if(Sanitizers_FOUND)
if(NOT TARGET Sanitizers::Sanitizers)
add_library(Sanitizers::Sanitizers INTERFACE IMPORTED)
set_target_properties(Sanitizers::Sanitizers PROPERTIES
INTERFACE_COMPILE_OPTIONS "${Sanitizers_COMPILE_OPTIONS}"
INTERFACE_LINK_LIBRARIES "${Sanitizers_COMPILE_OPTIONS}")
endif()
foreach(component ${Sanitizers_FIND_COMPONENTS})
if(NOT TARGET Sanitizers::${component})
set(target Sanitizers::${component})
set(compile_option "${Sanitizers_${component}_COMPILE_OPTIONS}")
add_library(${target} INTERFACE IMPORTED)
set_target_properties(${target} PROPERTIES
INTERFACE_COMPILE_OPTIONS "${compile_option}"
INTERFACE_LINK_LIBRARIES "${compile_option}")
endif()
endforeach()
endif()