1 # SPDX-License-Identifier: GPL-2.0 2 # ========================================================================== 3 # Cleaning up 4 # ========================================================================== 5 6 src := $(if $(VPATH),$(VPATH)/)$(obj) 7 8 PHONY := __clean 9 __clean: 10 11 include $(srctree)/scripts/Kbuild.include 12 include $(kbuild-file) 13 14 # Figure out what we need to build from the various variables 15 # ========================================================================== 16 17 subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \ 18 $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) 19 20 # Add subdir path 21 22 subdir-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. 42 quiet_cmd_clean = CLEAN $(obj) 43 cmd_clean = printf '$(obj)/%s ' $(patsubst $(obj)/%,%,$(__clean-files)) | xargs rm -rf 44 45 __clean: $(subdir-ymn) 46 ifneq ($(strip $(__clean-files)),) 47 $(call cmd,clean) 48 endif 49 @: 50 51 52 # =========================================================================== 53 # Generic stuff 54 # =========================================================================== 55 56 # Descending 57 # --------------------------------------------------------------------------- 58 59 PHONY += $(subdir-ymn) 60 $(subdir-ymn): 61 $(Q)$(MAKE) $(clean)=$@ 62 63 .PHONY: $(PHONY)
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