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 12 13# The filename Kbuild has precedence over Makefile 14kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) 15include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) 16 17# Figure out what we need to build from the various variables 18# ========================================================================== 19 20subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \ 21 $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) 22 23# Add subdir path 24 25subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) 26 27# build a list of files to remove, usually relative to the current 28# directory 29 30__clean-files := \ 31 $(clean-files) $(targets) $(hostprogs) $(userprogs) \ 32 $(extra-y) $(extra-m) $(extra-) \ 33 $(always-y) $(always-m) $(always-) \ 34 $(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \ 35 $(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-) 36 37__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 38 39# clean-files is given relative to the current directory, unless it 40# starts with $(objtree)/ (which means "./", so do not add "./" unless 41# you want to delete a file from the toplevel object directory). 42 43__clean-files := $(wildcard \ 44 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 45 $(filter $(objtree)/%, $(__clean-files))) 46 47# ========================================================================== 48 49quiet_cmd_clean = CLEAN $(obj) 50 cmd_clean = rm -rf $(__clean-files) 51 52__clean: $(subdir-ymn) 53ifneq ($(strip $(__clean-files)),) 54 $(call cmd,clean) 55endif 56 @: 57 58 59# =========================================================================== 60# Generic stuff 61# =========================================================================== 62 63# Descending 64# --------------------------------------------------------------------------- 65 66PHONY += $(subdir-ymn) 67$(subdir-ymn): 68 $(Q)$(MAKE) $(clean)=$@ 69 70.PHONY: $(PHONY) 71