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 34__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 35 36# clean-files is given relative to the current directory, unless it 37# starts with $(objtree)/ (which means "./", so do not add "./" unless 38# you want to delete a file from the toplevel object directory). 39 40__clean-files := $(wildcard \ 41 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 42 $(filter $(objtree)/%, $(__clean-files))) 43 44# ========================================================================== 45 46quiet_cmd_clean = CLEAN $(obj) 47 cmd_clean = rm -rf $(__clean-files) 48 49__clean: $(subdir-ymn) 50ifneq ($(strip $(__clean-files)),) 51 $(call cmd,clean) 52endif 53 @: 54 55 56# =========================================================================== 57# Generic stuff 58# =========================================================================== 59 60# Descending 61# --------------------------------------------------------------------------- 62 63PHONY += $(subdir-ymn) 64$(subdir-ymn): 65 $(Q)$(MAKE) $(clean)=$@ 66 67.PHONY: $(PHONY) 68