CMake: add more debug flags

Author: CarterLi

CMakeLists.txt

@@ -122,7 +122,7 @@ if(ENABLE_ASAN)
     set(FASTFETCH_FLAGS_DEBUG "${FASTFETCH_FLAGS_DEBUG} -fsanitize=address")
 endif()
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${FASTFETCH_FLAGS_DEBUG}")
-set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${FASTFETCH_FLAGS_DEBUG}")
+set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${FASTFETCH_FLAGS_DEBUG} -fstack-protector-all -fno-delete-null-pointer-checks")
 if(NOT WIN32)
     set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -rdynamic")
 endif()