1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # ============================================ 2 # ==========================================================================
3 # Cleaning up 3 # Cleaning up
4 # ============================================ 4 # ==========================================================================
5 5
6 src := $(if $(VPATH),$(VPATH)/)$(obj) !! 6 src := $(obj)
7 7
8 PHONY := __clean 8 PHONY := __clean
9 __clean: 9 __clean:
10 10
11 include $(srctree)/scripts/Kbuild.include !! 11 include scripts/Kbuild.include
12 include $(kbuild-file) !! 12
>> 13 # The filename Kbuild has precedence over Makefile
>> 14 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
>> 15 include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
13 16
14 # Figure out what we need to build from the va 17 # Figure out what we need to build from the various variables
15 # ============================================ 18 # ==========================================================================
16 19
17 subdir-ymn := $(sort $(subdir-y) $(subdir-m) $ !! 20 __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
18 $(patsubst %/,%, $(filter %/, !! 21 subdir-y += $(__subdir-y)
>> 22 __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
>> 23 subdir-m += $(__subdir-m)
>> 24 __subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
>> 25 subdir- += $(__subdir-)
>> 26
>> 27 # Subdirectories we need to descend into
>> 28
>> 29 subdir-ym := $(sort $(subdir-y) $(subdir-m))
>> 30 subdir-ymn := $(sort $(subdir-ym) $(subdir-))
19 31
20 # Add subdir path 32 # Add subdir path
21 33
22 subdir-ymn := $(addprefix $(obj)/,$(subdi 34 subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
23 35
24 # build a list of files to remove, usually rel 36 # build a list of files to remove, usually relative to the current
25 # directory 37 # directory
26 38
27 __clean-files := \ !! 39 __clean-files := $(extra-y) $(extra-m) $(extra-) \
28 $(clean-files) $(targets) $(hostprogs) !! 40 $(always) $(targets) $(clean-files) \
29 $(extra-y) $(extra-m) $(extra-) \ !! 41 $(host-progs) \
30 $(always-y) $(always-m) $(always-) \ !! 42 $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
31 $(hostprogs-always-y) $(hostprogs-alwa !! 43 $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
32 $(userprogs-always-y) $(userprogs-alwa !! 44 $(hostcxxlibs-y) $(hostcxxlibs-m)
33 45
34 __clean-files := $(filter-out $(no-clean-fil 46 __clean-files := $(filter-out $(no-clean-files), $(__clean-files))
35 47
36 __clean-files := $(wildcard $(addprefix $(ob !! 48 # clean-files is given relative to the current directory, unless it
>> 49 # starts with $(objtree)/ (which means "./", so do not add "./" unless
>> 50 # you want to delete a file from the toplevel object directory).
>> 51
>> 52 __clean-files := $(wildcard \
>> 53 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
>> 54 $(filter $(objtree)/%, $(__clean-files)))
>> 55
>> 56 # same as clean-files
>> 57
>> 58 __clean-dirs := $(wildcard \
>> 59 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \
>> 60 $(filter $(objtree)/%, $(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)
48 endif 76 endif
49 @: 77 @:
50 78
51 79
52 # ============================================ 80 # ===========================================================================
53 # Generic stuff 81 # Generic stuff
54 # ============================================ 82 # ===========================================================================
55 83
56 # Descending 84 # Descending
57 # -------------------------------------------- 85 # ---------------------------------------------------------------------------
58 86
59 PHONY += $(subdir-ymn) 87 PHONY += $(subdir-ymn)
60 $(subdir-ymn): 88 $(subdir-ymn):
61 $(Q)$(MAKE) $(clean)=$@ 89 $(Q)$(MAKE) $(clean)=$@
>> 90
>> 91 # Declare the contents of the .PHONY variable as phony. We keep that
>> 92 # information in a variable se we can use it in if_changed and friends.
62 93
63 .PHONY: $(PHONY) 94 .PHONY: $(PHONY)
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