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