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b2441318 1# SPDX-License-Identifier: GPL-2.0
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2# ==========================================================================
3# Cleaning up
4# ==========================================================================
5
6src := $(obj)
7
4f193362 8PHONY := __clean
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9__clean:
10
371fdc77 11include scripts/Kbuild.include
2315c6e4 12
2a691470 13# The filename Kbuild has precedence over Makefile
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14kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
15include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
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16
17# Figure out what we need to build from the various variables
18# ==========================================================================
19
20__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
21subdir-y += $(__subdir-y)
22__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
23subdir-m += $(__subdir-m)
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24__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
25subdir- += $(__subdir-)
26
27# Subdirectories we need to descend into
28
29subdir-ym := $(sort $(subdir-y) $(subdir-m))
a4954fd7 30subdir-ymn := $(sort $(subdir-ym) $(subdir-))
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31
32# Add subdir path
33
34subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
35
3156fd05 36# build a list of files to remove, usually relative to the current
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37# directory
38
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39__clean-files := $(extra-y) $(extra-m) $(extra-) \
40 $(always) $(targets) $(clean-files) \
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41 $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
42 $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
43 $(hostcxxlibs-y) $(hostcxxlibs-m)
1da177e4 44
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45__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
46
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47# clean-files is given relative to the current directory, unless it
48# starts with $(objtree)/ (which means "./", so do not add "./" unless
49# you want to delete a file from the toplevel object directory).
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50
51__clean-files := $(wildcard \
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52 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
53 $(filter $(objtree)/%, $(__clean-files)))
1da177e4 54
a16c5f99 55# same as clean-files
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56
57__clean-dirs := $(wildcard \
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58 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \
59 $(filter $(objtree)/%, $(clean-dirs)))
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60
61# ==========================================================================
62
63quiet_cmd_clean = CLEAN $(obj)
64 cmd_clean = rm -f $(__clean-files)
65quiet_cmd_cleandir = CLEAN $(__clean-dirs)
66 cmd_cleandir = rm -rf $(__clean-dirs)
67
68
69__clean: $(subdir-ymn)
70ifneq ($(strip $(__clean-files)),)
71 +$(call cmd,clean)
72endif
73ifneq ($(strip $(__clean-dirs)),)
74 +$(call cmd,cleandir)
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75endif
76 @:
77
78
79# ===========================================================================
80# Generic stuff
81# ===========================================================================
82
83# Descending
84# ---------------------------------------------------------------------------
85
4f193362 86PHONY += $(subdir-ymn)
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87$(subdir-ymn):
88 $(Q)$(MAKE) $(clean)=$@
89
4f193362 90.PHONY: $(PHONY)