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 := $(gcc-plugin-subdir-y)endif # If plugins aren't supported, abort the build before hard-to-read compiler# errors start getting spewed by the main build.PHONY += gcc-plugins-checkgcc-plugins-check: FORCEifdef CONFIG_GCC_PLUGINS  ifeq ($(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  endifendif	@: # Actually do the build, if requested.PHONY += gcc-pluginsgcc-plugins: scripts_basic gcc-plugins-checkifdef CONFIG_GCC_PLUGINS	$(Q)$(MAKE) $(build)=scripts/gcc-pluginsendif	@: