# SPDX-License-Identifier: GPL-2.0# ==========================================================================# Cleaning up# ========================================================================== src := $(srcroot)/$(obj) PHONY := __clean__clean: include $(srctree)/scripts/Kbuild.includeinclude $(kbuild-file) # Figure out what we need to build from the various variables# ========================================================================== subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \		$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) # Add subdir path subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn)) # build a list of files to remove, usually relative to the current# directory __clean-files	:= \	$(clean-files) $(targets) $(hostprogs) $(userprogs) \	$(extra-y) $(extra-m) $(extra-) \	$(always-y) $(always-m) $(always-) \	$(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \	$(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-) __clean-files   := $(filter-out $(no-clean-files), $(__clean-files)) __clean-files   := $(wildcard $(addprefix $(obj)/, $(__clean-files))) # ========================================================================== # To make this rule robust against "Argument list too long" error,# remove $(obj)/ prefix, and restore it by a shell command.quiet_cmd_clean = CLEAN   $(obj)      cmd_clean = printf '$(obj)/%s ' $(patsubst $(obj)/%,%,$(__clean-files)) | xargs rm -rf __clean: $(subdir-ymn)ifneq ($(strip $(__clean-files)),)	$(call cmd,clean)endif	@:  # ===========================================================================# Generic stuff# =========================================================================== # Descending# --------------------------------------------------------------------------- PHONY += $(subdir-ymn)$(subdir-ymn):	$(Q)$(MAKE) $(clean)=$@ .PHONY: $(PHONY)