config-sanitizer.cmake

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# !Warning: be SURE YOU REALLY KNOW what you are doing before modifying this file!
#####################################################################################################################################

#New behaviour uses CMAKE_EXE_LINKER FLAGS FOR check_compile (we need it to avoid link errors)
#Old behaviour does not
#cmake_policy(SET CMP0056 NEW)

if(MSVC)
	set(sanitize_flags "/fsanitize=address /Oy-")
	set(sanitize_linker_flags "")
else()
	set(sanitize_flags "-fsanitize=address,undefined -fno-omit-frame-pointer -fno-optimize-sibling-calls")
	set(sanitize_linker_flags "-fsanitize=address,undefined")
endif()

if (LINPHONESDK_PLATFORM STREQUAL "Android" OR DEFINED ANDROID)
  #For some (unknow) reason, when -llog is passed in the linker flags, cmake seems
  #to reset the linker flags. That's why it is actualy passed in compiler flags with -Wl
	set(sanitize_flags "${sanitize_flags} -Wl,-llog")	
endif()

# these link options are prepended by a semicolon if the following quotes are missing.
# we must set this quotes to prevent cmake from considering the given set as a list append
# see	https://cmake.org/cmake/help/v3.16/manual/cmake-language.7.html#cmake-language-variables


set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${sanitize_flags}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${sanitize_flags}")

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${sanitize_linker_flags}")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${sanitize_linker_flags}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${sanitize_linker_flags}")

#We need to put all these variables in cache so that cmake-builder external
# project variables passing includes correct values initially (from cache)
# (used very early in the build by toolchains)
#if this is not done the variables are reset
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}" CACHE STRING "" FORCE)

unset(sanitize_flags)
unset(sanitize_linker_flags)