ifdef CONFIG_GCC_PLUGINS __PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC)) PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)") SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += latent_entropy_plugin.so gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) += -DLATENT_ENTROPY_PLUGIN ifdef CONFIG_PAX_LATENT_ENTROPY DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable endif ifdef CONFIG_GCC_PLUGIN_SANCOV ifeq ($(CFLAGS_KCOV),) # It is needed because of the gcc-plugin.sh and gcc version checks. gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so ifneq ($(PLUGINCC),) CFLAGS_KCOV := $(SANCOV_PLUGIN) else $(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler) endif endif endif GCC_PLUGINS_CFLAGS := $(strip $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) $(gcc-plugin-cflags-y)) export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN GCC_PLUGIN_SUBDIR export SANCOV_PLUGIN DISABLE_LATENT_ENTROPY_PLUGIN ifneq ($(PLUGINCC),) # SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication. GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS)) endif KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) GCC_PLUGIN := $(gcc-plugin-y) GCC_PLUGIN_SUBDIR := $(gcc-plugin-subdir-y) endif # If plugins aren't supported, abort the build before hard-to-read compiler # errors start getting spewed by the main build. PHONY += gcc-plugins-check gcc-plugins-check: FORCE ifdef CONFIG_GCC_PLUGINS ifeq ($(PLUGINCC),) ifneq ($(GCC_PLUGINS_CFLAGS),) ifeq ($(call cc-ifversion, -ge, 0405, y), y) $(Q)$(srctree)/scripts/gcc-plugin.sh --show-error "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)" || true @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc installation does not support plugins, perhaps the necessary headers are missing?" >&2 && exit 1 else @echo "Cannot use CONFIG_GCC_PLUGINS: your gcc version does not support plugins, you should upgrade it to at least gcc 4.5" >&2 && exit 1 endif endif endif endif @: # Actually do the build, if requested. PHONY += gcc-plugins gcc-plugins: scripts_basic gcc-plugins-check ifdef CONFIG_GCC_PLUGINS $(Q)$(MAKE) $(build)=scripts/gcc-plugins endif @: