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) $(targets) $(clean-files) \ 32 $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ 33 $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \ 34 $(hostcxxlibs-y) $(hostcxxlibs-m) 35 36__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 37 38# clean-files is given relative to the current directory, unless it 39# starts with $(objtree)/ (which means "./", so do not add "./" unless 40# you want to delete a file from the toplevel object directory). 41 42__clean-files := $(wildcard \ 43 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 44 $(filter $(objtree)/%, $(__clean-files))) 45 46# ========================================================================== 47 48quiet_cmd_clean = CLEAN $(obj) 49 cmd_clean = rm -rf $(__clean-files) 50 51__clean: $(subdir-ymn) 52ifneq ($(strip $(__clean-files)),) 53 $(call cmd,clean) 54endif 55 @: 56 57 58# =========================================================================== 59# Generic stuff 60# =========================================================================== 61 62# Descending 63# --------------------------------------------------------------------------- 64 65PHONY += $(subdir-ymn) 66$(subdir-ymn): 67 $(Q)$(MAKE) $(clean)=$@ 68 69.PHONY: $(PHONY) 70