ifdef CONFIG_KCOV ifeq ($(call cc-option, -fsanitize-coverage=trace-pc -Werror),) ifneq ($(CONFIG_COMPILE_TEST),y) $(error Cannot use CONFIG_KCOV: \ -fsanitize-coverage=trace-pc is not supported by compiler) endif endif ifdef CONFIG_KCOV_ENABLE_COMPARISONS ifeq ($(call cc-option, -fsanitize-coverage=trace-cmp -Werror),) ifneq ($(CONFIG_COMPILE_TEST),y) $(error Cannot use CONFIG_KCOV_ENABLE_COMPARISONS: \ -fsanitize-coverage=trace-cmp is not supported by compiler) endif endif endif kcov-flags-$(CONFIG_CC_HAS_SANCOV_TRACE_PC) += -fsanitize-coverage=trace-pc kcov-flags-$(CONFIG_KCOV_ENABLE_COMPARISONS) += -fsanitize-coverage=trace-cmp kcov-flags-$(CONFIG_GCC_PLUGIN_SANCOV) += -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so export CFLAGS_KCOV := $(kcov-flags-y) endif