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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 | |
176d0982 | 13 | clean := -f $(srctree)/scripts/Makefile.clean obj |
22433fc5 MY |
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) | |
22433fc5 MY |
26 | __subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) |
27 | subdir- += $(__subdir-) | |
28 | ||
29 | # Subdirectories we need to descend into | |
30 | ||
31 | subdir-ym := $(sort $(subdir-y) $(subdir-m)) | |
176d0982 | 32 | subdir-ymn := $(sort $(subdir-ym) $(subdir-)) |
22433fc5 MY |
33 | |
34 | # Add subdir path | |
35 | ||
36 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) | |
efcf8619 MY |
37 | |
38 | # Temporal work-around for U-Boot | |
39 | ||
6bd04bb4 MY |
40 | subdir-ymn := $(foreach f, $(subdir-ymn), \ |
41 | $(if $(wildcard $(srctree)/$f/Makefile),$f)) | |
22433fc5 MY |
42 | |
43 | # build a list of files to remove, usually relative to the current | |
44 | # directory | |
45 | ||
021f0495 MY |
46 | __clean-files := $(extra-y) $(extra-m) $(extra-) \ |
47 | $(always) $(targets) $(clean-files) \ | |
22433fc5 MY |
48 | $(host-progs) \ |
49 | $(hostprogs-y) $(hostprogs-m) $(hostprogs-) | |
50 | ||
51 | __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) | |
52 | ||
53 | # as clean-files is given relative to the current directory, this adds | |
54 | # a $(obj) prefix, except for absolute paths | |
55 | ||
56 | __clean-files := $(wildcard \ | |
57 | $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \ | |
58 | $(filter /%, $(__clean-files))) | |
59 | ||
60 | # as clean-dirs is given relative to the current directory, this adds | |
61 | # a $(obj) prefix, except for absolute paths | |
62 | ||
63 | __clean-dirs := $(wildcard \ | |
64 | $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \ | |
65 | $(filter /%, $(clean-dirs))) | |
66 | ||
67 | # ========================================================================== | |
68 | ||
69 | quiet_cmd_clean = CLEAN $(obj) | |
70 | cmd_clean = rm -f $(__clean-files) | |
71 | quiet_cmd_cleandir = CLEAN $(__clean-dirs) | |
72 | cmd_cleandir = rm -rf $(__clean-dirs) | |
73 | ||
74 | ||
75 | __clean: $(subdir-ymn) | |
76 | ifneq ($(strip $(__clean-files)),) | |
77 | +$(call cmd,clean) | |
78 | endif | |
79 | ifneq ($(strip $(__clean-dirs)),) | |
80 | +$(call cmd,cleandir) | |
81 | endif | |
82 | ifneq ($(strip $(clean-rule)),) | |
83 | +$(clean-rule) | |
84 | endif | |
85 | @: | |
86 | ||
87 | ||
88 | # =========================================================================== | |
89 | # Generic stuff | |
90 | # =========================================================================== | |
91 | ||
92 | # Descending | |
93 | # --------------------------------------------------------------------------- | |
94 | ||
95 | PHONY += $(subdir-ymn) | |
96 | $(subdir-ymn): | |
97 | $(Q)$(MAKE) $(clean)=$@ | |
98 | ||
99 | # If quiet is set, only print short version of command | |
100 | ||
101 | cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1)) | |
102 | ||
103 | ||
104 | # Declare the contents of the .PHONY variable as phony. We keep that | |
105 | # information in a variable se we can use it in if_changed and friends. | |
106 | ||
107 | .PHONY: $(PHONY) |