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22433fc5 MY |
1 | # ========================================================================== |
2 | # Cleaning up | |
3 | # ========================================================================== | |
4 | ||
5 | src := $(obj) | |
6 | ||
7 | PHONY := __clean | |
8 | __clean: | |
9 | ||
10 | # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir | |
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) | |
18 | ||
19 | # Figure out what we need to build from the various variables | |
20 | # ========================================================================== | |
21 | ||
22 | __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) | |
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-)) | |
35 | ||
36 | # Add subdir path | |
37 | ||
38 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) | |
efcf8619 MY |
39 | |
40 | # Temporal work-around for U-Boot | |
41 | ||
6bd04bb4 MY |
42 | subdir-ymn := $(foreach f, $(subdir-ymn), \ |
43 | $(if $(wildcard $(srctree)/$f/Makefile),$f)) | |
22433fc5 MY |
44 | |
45 | # build a list of files to remove, usually relative to the current | |
46 | # directory | |
47 | ||
48 | __clean-files := $(extra-y) $(always) \ | |
49 | $(targets) $(clean-files) \ | |
50 | $(host-progs) \ | |
51 | $(hostprogs-y) $(hostprogs-m) $(hostprogs-) | |
52 | ||
53 | __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) | |
54 | ||
55 | # as clean-files is given relative to the current directory, this adds | |
56 | # a $(obj) prefix, except for absolute paths | |
57 | ||
58 | __clean-files := $(wildcard \ | |
59 | $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \ | |
60 | $(filter /%, $(__clean-files))) | |
61 | ||
62 | # as clean-dirs is given relative to the current directory, this adds | |
63 | # a $(obj) prefix, except for absolute paths | |
64 | ||
65 | __clean-dirs := $(wildcard \ | |
66 | $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \ | |
67 | $(filter /%, $(clean-dirs))) | |
68 | ||
69 | # ========================================================================== | |
70 | ||
71 | quiet_cmd_clean = CLEAN $(obj) | |
72 | cmd_clean = rm -f $(__clean-files) | |
73 | quiet_cmd_cleandir = CLEAN $(__clean-dirs) | |
74 | cmd_cleandir = rm -rf $(__clean-dirs) | |
75 | ||
76 | ||
77 | __clean: $(subdir-ymn) | |
78 | ifneq ($(strip $(__clean-files)),) | |
79 | +$(call cmd,clean) | |
80 | endif | |
81 | ifneq ($(strip $(__clean-dirs)),) | |
82 | +$(call cmd,cleandir) | |
83 | endif | |
84 | ifneq ($(strip $(clean-rule)),) | |
85 | +$(clean-rule) | |
86 | endif | |
87 | @: | |
88 | ||
89 | ||
90 | # =========================================================================== | |
91 | # Generic stuff | |
92 | # =========================================================================== | |
93 | ||
94 | # Descending | |
95 | # --------------------------------------------------------------------------- | |
96 | ||
97 | PHONY += $(subdir-ymn) | |
98 | $(subdir-ymn): | |
99 | $(Q)$(MAKE) $(clean)=$@ | |
100 | ||
101 | # If quiet is set, only print short version of command | |
102 | ||
103 | cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1)) | |
104 | ||
105 | ||
106 | # Declare the contents of the .PHONY variable as phony. We keep that | |
107 | # information in a variable se we can use it in if_changed and friends. | |
108 | ||
109 | .PHONY: $(PHONY) |