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1# SPDX-License-Identifier: GPL-2.0
2# ==========================================================================
3# Cleaning up
4# ==========================================================================
5
6src := $(obj)
7
8PHONY := __clean
9__clean:
10
11include scripts/Kbuild.include
12
13# The filename Kbuild has precedence over Makefile
14kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
15include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
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)
24__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
25subdir- += $(__subdir-)
26
27# Subdirectories we need to descend into
28
29subdir-ym := $(sort $(subdir-y) $(subdir-m))
30subdir-ymn := $(sort $(subdir-ym) $(subdir-))
31
32# Add subdir path
33
34subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
35
36# build a list of files to remove, usually relative to the current
37# directory
38
39__clean-files := $(extra-y) $(extra-m) $(extra-) \
40 $(always) $(targets) $(clean-files) \
41 $(host-progs) \
42 $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
43 $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
44 $(hostcxxlibs-y) $(hostcxxlibs-m)
45
46__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
47
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)))
61
62# ==========================================================================
63
64quiet_cmd_clean = CLEAN $(obj)
65 cmd_clean = rm -f $(__clean-files)
66quiet_cmd_cleandir = CLEAN $(__clean-dirs)
67 cmd_cleandir = rm -rf $(__clean-dirs)
68
69
70__clean: $(subdir-ymn)
71ifneq ($(strip $(__clean-files)),)
72 +$(call cmd,clean)
73endif
74ifneq ($(strip $(__clean-dirs)),)
75 +$(call cmd,cleandir)
76endif
77 @:
78
79
80# ===========================================================================
81# Generic stuff
82# ===========================================================================
83
84# Descending
85# ---------------------------------------------------------------------------
86
87PHONY += $(subdir-ymn)
88$(subdir-ymn):
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.
93
94.PHONY: $(PHONY)
1# ==========================================================================
2# Cleaning up
3# ==========================================================================
4
5src := $(obj)
6
7PHONY := __clean
8__clean:
9
10# Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
11# Usage:
12# $(Q)$(MAKE) $(clean)=dir
13clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
14
15# The filename Kbuild has precedence over Makefile
16kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
17include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
18
19# Figure out what we need to build from the various variables
20# ==========================================================================
21
22__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
23subdir-y += $(__subdir-y)
24__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
25subdir-m += $(__subdir-m)
26__subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n)))
27subdir-n += $(__subdir-n)
28__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
29subdir- += $(__subdir-)
30
31# Subdirectories we need to descend into
32
33subdir-ym := $(sort $(subdir-y) $(subdir-m))
34subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
35
36# Add subdir path
37
38subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
39
40# build a list of files to remove, usually relative to the current
41# directory
42
43__clean-files := $(extra-y) $(always) \
44 $(targets) $(clean-files) \
45 $(host-progs) \
46 $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
47
48__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
49
50# as clean-files is given relative to the current directory, this adds
51# a $(obj) prefix, except for absolute paths
52
53__clean-files := $(wildcard \
54 $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
55 $(filter /%, $(__clean-files)))
56
57# as clean-dirs is given relative to the current directory, this adds
58# a $(obj) prefix, except for absolute paths
59
60__clean-dirs := $(wildcard \
61 $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
62 $(filter /%, $(clean-dirs)))
63
64# ==========================================================================
65
66quiet_cmd_clean = CLEAN $(obj)
67 cmd_clean = rm -f $(__clean-files)
68quiet_cmd_cleandir = CLEAN $(__clean-dirs)
69 cmd_cleandir = rm -rf $(__clean-dirs)
70
71
72__clean: $(subdir-ymn)
73ifneq ($(strip $(__clean-files)),)
74 +$(call cmd,clean)
75endif
76ifneq ($(strip $(__clean-dirs)),)
77 +$(call cmd,cleandir)
78endif
79ifneq ($(strip $(clean-rule)),)
80 +$(clean-rule)
81endif
82 @:
83
84
85# ===========================================================================
86# Generic stuff
87# ===========================================================================
88
89# Descending
90# ---------------------------------------------------------------------------
91
92PHONY += $(subdir-ymn)
93$(subdir-ymn):
94 $(Q)$(MAKE) $(clean)=$@
95
96# If quiet is set, only print short version of command
97
98cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
99
100
101# Declare the contents of the .PHONY variable as phony. We keep that
102# information in a variable se we can use it in if_changed and friends.
103
104.PHONY: $(PHONY)