1# SPDX-License-Identifier: GPL-2.0 2# ========================================================================== 3# Cleaning up 4# ========================================================================== 5 6src := $(obj) 7 8PHONY := __clean 9__clean: 10 11include 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 := $(extra-y) $(extra-m) $(extra-) \ 31 $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files) \ 32 $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) $(userprogs) \ 33 $(hostcxxlibs-y) $(hostcxxlibs-m) 34 35__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 36 37# clean-files is given relative to the current directory, unless it 38# starts with $(objtree)/ (which means "./", so do not add "./" unless 39# you want to delete a file from the toplevel object directory). 40 41__clean-files := $(wildcard \ 42 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 43 $(filter $(objtree)/%, $(__clean-files))) 44 45# ========================================================================== 46 47quiet_cmd_clean = CLEAN $(obj) 48 cmd_clean = rm -rf $(__clean-files) 49 50__clean: $(subdir-ymn) 51ifneq ($(strip $(__clean-files)),) 52 $(call cmd,clean) 53endif 54 @: 55 56 57# =========================================================================== 58# Generic stuff 59# =========================================================================== 60 61# Descending 62# --------------------------------------------------------------------------- 63 64PHONY += $(subdir-ymn) 65$(subdir-ymn): 66 $(Q)$(MAKE) $(clean)=$@ 67 68.PHONY: $(PHONY) 69