Add flags -DUBSAN and -DASAN to cmake to toggle address and undefined…

… behaviour sanitizers

Add helper scripts to more quickly toggle between sanitization modes.

CMakeLists.txt

@@ -32,8 +32,21 @@ if (MSVC)
 else()
 	# set(CMAKE_C_FLAGS "-Wall -Wextra -pedantic -Wconversion -std=gnu99")
 	set(CMAKE_C_FLAGS "-Wall -std=gnu99")
-	set(CMAKE_C_FLAGS_DEBUG "-fsanitize=address -O0 -g")
 	set(CMAKE_C_FLAGS_RELEASE "-O3 -ftree-vectorize")
+	if (ASAN)
+		unset(UBSAN CACHE)
+		unset(ASAN CACHE)
+		set(CMAKE_C_FLAGS_DEBUG "-fsanitize=address -O0 -g")
+		message(STATUS "Address sanitizer enabled")
+	elseif(UBSAN)
+		unset(ASAN CACHE)
+		unset(UBSAN CACHE)
+		set(CMAKE_C_FLAGS_DEBUG "-fsanitize=undefined -O0 -g")
+		message(STATUS "Undefined behaviour sanitizer enabled")
+	else()
+		set(CMAKE_C_FLAGS_DEBUG "-O0 -g")
+		message(STATUS "No sanitizations")
+	endif()
 endif()
 
 message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")

asan

@@ -0,0 +1,3 @@
+#!/usr/local/bin/fish
+
+cmake . -DCMAKE_BUILD_TYPE=Debug -DASAN=True; and make

ubsan

@@ -0,0 +1,3 @@
+#!/usr/local/bin/fish
+
+cmake . -DCMAKE_BUILD_TYPE=Debug -DUBSAN=True; and make