1# SPDX-License-Identifier: GPL-2.0 2# ========================================================================== 3# Cleaning up 4# ========================================================================== 5 6src := $(obj) 7 8PHONY := __clean 9__clean: 10 11include $(srctree)/scripts/Kbuild.include 12include $(kbuild-file) 13 14# Figure out what we need to build from the various variables 15# ========================================================================== 16 17subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \ 18 $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) 19 20# Add subdir path 21 22subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) 23 24# build a list of files to remove, usually relative to the current 25# directory 26 27__clean-files := \ 28 $(clean-files) $(targets) $(hostprogs) $(userprogs) \ 29 $(extra-y) $(extra-m) $(extra-) \ 30 $(always-y) $(always-m) $(always-) \ 31 $(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \ 32 $(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-) 33 34__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 35 36__clean-files := $(wildcard $(addprefix $(obj)/, $(__clean-files))) 37 38# ========================================================================== 39 40# To make this rule robust against "Argument list too long" error, 41# remove $(obj)/ prefix, and restore it by a shell command. 42quiet_cmd_clean = CLEAN $(obj) 43 cmd_clean = printf '$(obj)/%s ' $(patsubst $(obj)/%,%,$(__clean-files)) | xargs rm -rf 44 45__clean: $(subdir-ymn) 46ifneq ($(strip $(__clean-files)),) 47 $(call cmd,clean) 48endif 49 @: 50 51 52# =========================================================================== 53# Generic stuff 54# =========================================================================== 55 56# Descending 57# --------------------------------------------------------------------------- 58 59PHONY += $(subdir-ymn) 60$(subdir-ymn): 61 $(Q)$(MAKE) $(clean)=$@ 62 63.PHONY: $(PHONY) 64