1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun# ========================================================================== 3*4882a593Smuzhiyun# Cleaning up 4*4882a593Smuzhiyun# ========================================================================== 5*4882a593Smuzhiyun 6*4882a593Smuzhiyunsrc := $(obj) 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunPHONY := __clean 9*4882a593Smuzhiyun__clean: 10*4882a593Smuzhiyun 11*4882a593Smuzhiyuninclude scripts/Kbuild.include 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun# The filename Kbuild has precedence over Makefile 14*4882a593Smuzhiyunkbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) 15*4882a593Smuzhiyuninclude $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun# Figure out what we need to build from the various variables 18*4882a593Smuzhiyun# ========================================================================== 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) 21*4882a593Smuzhiyunsubdir-y += $(__subdir-y) 22*4882a593Smuzhiyun__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) 23*4882a593Smuzhiyunsubdir-m += $(__subdir-m) 24*4882a593Smuzhiyun__subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) 25*4882a593Smuzhiyunsubdir- += $(__subdir-) 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun# Subdirectories we need to descend into 28*4882a593Smuzhiyun 29*4882a593Smuzhiyunsubdir-ym := $(sort $(subdir-y) $(subdir-m)) 30*4882a593Smuzhiyunsubdir-ymn := $(sort $(subdir-ym) $(subdir-)) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun# Add subdir path 33*4882a593Smuzhiyun 34*4882a593Smuzhiyunsubdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun# build a list of files to remove, usually relative to the current 37*4882a593Smuzhiyun# directory 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun__clean-files := $(extra-y) $(extra-m) $(extra-) \ 40*4882a593Smuzhiyun $(always) $(targets) $(clean-files) \ 41*4882a593Smuzhiyun $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ 42*4882a593Smuzhiyun $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \ 43*4882a593Smuzhiyun $(hostcxxlibs-y) $(hostcxxlibs-m) 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun# clean-files is given relative to the current directory, unless it 48*4882a593Smuzhiyun# starts with $(objtree)/ (which means "./", so do not add "./" unless 49*4882a593Smuzhiyun# you want to delete a file from the toplevel object directory). 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun__clean-files := $(wildcard \ 52*4882a593Smuzhiyun $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 53*4882a593Smuzhiyun $(filter $(objtree)/%, $(__clean-files))) 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun# same as clean-files 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun__clean-dirs := $(wildcard \ 58*4882a593Smuzhiyun $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ 59*4882a593Smuzhiyun $(filter $(objtree)/%, $(clean-dirs))) 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun# ========================================================================== 62*4882a593Smuzhiyun 63*4882a593Smuzhiyunquiet_cmd_clean = CLEAN $(obj) 64*4882a593Smuzhiyun cmd_clean = rm -f $(__clean-files) 65*4882a593Smuzhiyunquiet_cmd_cleandir = CLEAN $(__clean-dirs) 66*4882a593Smuzhiyun cmd_cleandir = rm -rf $(__clean-dirs) 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun__clean: $(subdir-ymn) 70*4882a593Smuzhiyunifneq ($(strip $(__clean-files)),) 71*4882a593Smuzhiyun +$(call cmd,clean) 72*4882a593Smuzhiyunendif 73*4882a593Smuzhiyunifneq ($(strip $(__clean-dirs)),) 74*4882a593Smuzhiyun +$(call cmd,cleandir) 75*4882a593Smuzhiyunendif 76*4882a593Smuzhiyun @: 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun# =========================================================================== 80*4882a593Smuzhiyun# Generic stuff 81*4882a593Smuzhiyun# =========================================================================== 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun# Descending 84*4882a593Smuzhiyun# --------------------------------------------------------------------------- 85*4882a593Smuzhiyun 86*4882a593SmuzhiyunPHONY += $(subdir-ymn) 87*4882a593Smuzhiyun$(subdir-ymn): 88*4882a593Smuzhiyun $(Q)$(MAKE) $(clean)=$@ 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun.PHONY: $(PHONY) 91