1*4882a593Smuzhiyun# ========================================================================== 2*4882a593Smuzhiyun# Cleaning up 3*4882a593Smuzhiyun# ========================================================================== 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 6*4882a593Smuzhiyun# 7*4882a593Smuzhiyun 8*4882a593Smuzhiyunsrc := $(obj) 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunPHONY := __clean 11*4882a593Smuzhiyun__clean: 12*4882a593Smuzhiyun 13*4882a593Smuzhiyuninclude scripts/Kbuild.include 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun# The filename Kbuild has precedence over Makefile 16*4882a593Smuzhiyunkbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) 17*4882a593Smuzhiyuninclude $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun# Figure out what we need to build from the various variables 20*4882a593Smuzhiyun# ========================================================================== 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) 23*4882a593Smuzhiyunsubdir-y += $(__subdir-y) 24*4882a593Smuzhiyun__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) 25*4882a593Smuzhiyunsubdir-m += $(__subdir-m) 26*4882a593Smuzhiyun__subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) 27*4882a593Smuzhiyunsubdir- += $(__subdir-) 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun# Subdirectories we need to descend into 30*4882a593Smuzhiyun 31*4882a593Smuzhiyunsubdir-ym := $(sort $(subdir-y) $(subdir-m)) 32*4882a593Smuzhiyunsubdir-ymn := $(sort $(subdir-ym) $(subdir-)) 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun# Add subdir path 35*4882a593Smuzhiyun 36*4882a593Smuzhiyunsubdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun# Temporal work-around for U-Boot 39*4882a593Smuzhiyun 40*4882a593Smuzhiyunsubdir-ymn := $(foreach f, $(subdir-ymn), \ 41*4882a593Smuzhiyun $(if $(wildcard $(srctree)/$f/Makefile),$f)) 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun# build a list of files to remove, usually relative to the current 44*4882a593Smuzhiyun# directory 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun__clean-files := $(extra-y) $(extra-m) $(extra-) \ 47*4882a593Smuzhiyun $(always) $(targets) $(clean-files) \ 48*4882a593Smuzhiyun $(host-progs) \ 49*4882a593Smuzhiyun $(hostprogs-y) $(hostprogs-m) $(hostprogs-) 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun__clean-files := $(filter-out $(no-clean-files), $(__clean-files)) 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun# clean-files is given relative to the current directory, unless it 54*4882a593Smuzhiyun# starts with $(objtree)/ (which means "./", so do not add "./" unless 55*4882a593Smuzhiyun# you want to delete a file from the toplevel object directory). 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun__clean-files := $(wildcard \ 58*4882a593Smuzhiyun $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ 59*4882a593Smuzhiyun $(filter $(objtree)/%, $(__clean-files))) 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun# same as clean-files 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun__clean-dirs := $(wildcard \ 64*4882a593Smuzhiyun $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ 65*4882a593Smuzhiyun $(filter $(objtree)/%, $(clean-dirs))) 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun# ========================================================================== 68*4882a593Smuzhiyun 69*4882a593Smuzhiyunquiet_cmd_clean = CLEAN $(obj) 70*4882a593Smuzhiyun cmd_clean = rm -f $(__clean-files) 71*4882a593Smuzhiyunquiet_cmd_cleandir = CLEAN $(__clean-dirs) 72*4882a593Smuzhiyun cmd_cleandir = rm -rf $(__clean-dirs) 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun__clean: $(subdir-ymn) 76*4882a593Smuzhiyunifneq ($(strip $(__clean-files)),) 77*4882a593Smuzhiyun +$(call cmd,clean) 78*4882a593Smuzhiyunendif 79*4882a593Smuzhiyunifneq ($(strip $(__clean-dirs)),) 80*4882a593Smuzhiyun +$(call cmd,cleandir) 81*4882a593Smuzhiyunendif 82*4882a593Smuzhiyun @: 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun 85*4882a593Smuzhiyun# =========================================================================== 86*4882a593Smuzhiyun# Generic stuff 87*4882a593Smuzhiyun# =========================================================================== 88*4882a593Smuzhiyun 89*4882a593Smuzhiyun# Descending 90*4882a593Smuzhiyun# --------------------------------------------------------------------------- 91*4882a593Smuzhiyun 92*4882a593SmuzhiyunPHONY += $(subdir-ymn) 93*4882a593Smuzhiyun$(subdir-ymn): 94*4882a593Smuzhiyun $(Q)$(MAKE) $(clean)=$@ 95*4882a593Smuzhiyun 96*4882a593Smuzhiyun# Declare the contents of the .PHONY variable as phony. We keep that 97*4882a593Smuzhiyun# information in a variable se we can use it in if_changed and friends. 98*4882a593Smuzhiyun 99*4882a593Smuzhiyun.PHONY: $(PHONY) 100