1 # SPDX-License-Identifier: GPL-2.0 <<
2 # ============================================ 1 # ==========================================================================
3 # Cleaning up 2 # Cleaning up
4 # ============================================ 3 # ==========================================================================
5 4
6 src := $(if $(VPATH),$(VPATH)/)$(obj) !! 5 src := $(obj)
7 6
8 PHONY := __clean 7 PHONY := __clean
9 __clean: 8 __clean:
10 9
11 include $(srctree)/scripts/Kbuild.include !! 10 # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
12 include $(kbuild-file) !! 11 # Usage:
>> 12 # $(Q)$(MAKE) $(clean)=dir
>> 13 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
>> 14
>> 15 # The filename Kbuild has precedence over Makefile
>> 16 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
>> 17 include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
13 18
14 # Figure out what we need to build from the va 19 # Figure out what we need to build from the various variables
15 # ============================================ 20 # ==========================================================================
16 21
17 subdir-ymn := $(sort $(subdir-y) $(subdir-m) $ !! 22 __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
18 $(patsubst %/,%, $(filter %/, !! 23 subdir-y += $(__subdir-y)
>> 24 __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
>> 25 subdir-m += $(__subdir-m)
>> 26 __subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n)))
>> 27 subdir-n += $(__subdir-n)
>> 28 __subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
>> 29 subdir- += $(__subdir-)
>> 30
>> 31 # Subdirectories we need to descend into
>> 32
>> 33 subdir-ym := $(sort $(subdir-y) $(subdir-m))
>> 34 subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
19 35
20 # Add subdir path 36 # Add subdir path
21 37
22 subdir-ymn := $(addprefix $(obj)/,$(subdi 38 subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
23 39
24 # build a list of files to remove, usually rel 40 # build a list of files to remove, usually relative to the current
25 # directory 41 # directory
26 42
27 __clean-files := \ !! 43 __clean-files := $(extra-y) $(always) \
28 $(clean-files) $(targets) $(hostprogs) !! 44 $(targets) $(clean-files) \
29 $(extra-y) $(extra-m) $(extra-) \ !! 45 $(host-progs) \
30 $(always-y) $(always-m) $(always-) \ !! 46 $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
31 $(hostprogs-always-y) $(hostprogs-alwa !! 47
32 $(userprogs-always-y) $(userprogs-alwa !! 48 # as clean-files is given relative to the current directory, this adds
33 !! 49 # a $(obj) prefix, except for absolute paths
34 __clean-files := $(filter-out $(no-clean-fil !! 50
35 !! 51 __clean-files := $(wildcard \
36 __clean-files := $(wildcard $(addprefix $(ob !! 52 $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
>> 53 $(filter /%, $(__clean-files)))
>> 54
>> 55 # as clean-dirs is given relative to the current directory, this adds
>> 56 # a $(obj) prefix, except for absolute paths
>> 57
>> 58 __clean-dirs := $(wildcard \
>> 59 $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
>> 60 $(filter /%, $(clean-dirs)))
37 61
38 # ============================================ 62 # ==========================================================================
39 63
40 # To make this rule robust against "Argument l !! 64 quiet_cmd_clean = CLEAN $(obj)
41 # remove $(obj)/ prefix, and restore it by a s !! 65 cmd_clean = rm -f $(__clean-files)
42 quiet_cmd_clean = CLEAN $(obj) !! 66 quiet_cmd_cleandir = CLEAN $(__clean-dirs)
43 cmd_clean = printf '$(obj)/%s ' $(patsub !! 67 cmd_cleandir = rm -rf $(__clean-dirs)
>> 68
44 69
45 __clean: $(subdir-ymn) 70 __clean: $(subdir-ymn)
46 ifneq ($(strip $(__clean-files)),) 71 ifneq ($(strip $(__clean-files)),)
47 $(call cmd,clean) !! 72 +$(call cmd,clean)
>> 73 endif
>> 74 ifneq ($(strip $(__clean-dirs)),)
>> 75 +$(call cmd,cleandir)
>> 76 endif
>> 77 ifneq ($(strip $(clean-rule)),)
>> 78 +$(clean-rule)
48 endif 79 endif
49 @: 80 @:
50 81
51 82
52 # ============================================ 83 # ===========================================================================
53 # Generic stuff 84 # Generic stuff
54 # ============================================ 85 # ===========================================================================
55 86
56 # Descending 87 # Descending
57 # -------------------------------------------- 88 # ---------------------------------------------------------------------------
58 89
59 PHONY += $(subdir-ymn) 90 PHONY += $(subdir-ymn)
60 $(subdir-ymn): 91 $(subdir-ymn):
61 $(Q)$(MAKE) $(clean)=$@ 92 $(Q)$(MAKE) $(clean)=$@
>> 93
>> 94 # If quiet is set, only print short version of command
>> 95
>> 96 cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
>> 97
>> 98
>> 99 # Declare the contents of the .PHONY variable as phony. We keep that
>> 100 # information in a variable se we can use it in if_changed and friends.
62 101
63 .PHONY: $(PHONY) 102 .PHONY: $(PHONY)
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