Add support for memory and thread sanitizers

CMakeLists.txt

@@ -187,7 +187,8 @@ if(CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES RelWithDebInfo OR
 endif()
 
 option(WANT_STRIP "Strip binaries (discard symbols from object files)" OFF)
-option(WANT_SANITIZER "Enable debug sanitizers (requires WANT_DEBUG)" OFF)
+set(WANT_SANITIZER OFF CACHE STRING "Enable debug sanitizers (requires WANT_DEBUG)")
+set_property(CACHE WANT_SANITIZER PROPERTY STRINGS OFF ADDRESS MEMORY THREAD)
 
 if(WANT_ENV_FLAGS)
 	set(CMAKE_BUILD_TYPE Undefined)
@@ -234,10 +235,21 @@ else()
 				set(CMAKE_C_FLAGS "-O0 -g")
 			endif()
 		endif()
-		if(WANT_SANITIZER)
+		string(TOUPPER "${WANT_SANITIZER}" WANT_SANITIZER )
+		if(WANT_SANITIZER STREQUAL ADDRESS)
 			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fsanitize=address -fno-omit-frame-pointer")
-			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fsanitize=address -fno-omit-frame-pointer")
-			set(CMAKE_STATUS_DEBUG_SUPPORT "Yes, with sanitizers")
+			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fsanitize=memory -fsanitize=address -fno-omit-frame-pointer")
+			set(CMAKE_STATUS_DEBUG_SUPPORT "Yes, with address,leak and undefined behavior sanitizers")
+		elseif(WANT_SANITIZER STREQUAL MEMORY)
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=memory -fPIE -pie -fno-omit-frame-pointer")
+			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=memory -fPIE -pie -fno-omit-frame-pointer")
+			set(CMAKE_STATUS_DEBUG_SUPPORT "Yes, with memory sanitizer")
+		elseif(WANT_SANITIZER STREQUAL THREAD)
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread -fno-omit-frame-pointer")
+			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=thread -fno-omit-frame-pointer")
+			set(CMAKE_STATUS_DEBUG_SUPPORT "Yes, with memory sanitizer")
+		elseif(NOT WANT_SANITIZER STREQUAL OFF)
+			message(FATAL_ERROR "Invalid sanitizer ${WANT_SANITIZER}. Available sanitizers: address, memory, thread")
 		endif()
 	else()
 		if(WANT_STRIP)