blob: 21e1f21531fd5b9a496f830ff21fefd2baf2f62b [file] [log] [blame]
Masahiro Yamada22433fc2014-02-04 17:24:27 +09001# ==========================================================================
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
Masahiro Yamada176d0982014-10-30 11:06:13 +090013clean := -f $(srctree)/scripts/Makefile.clean obj
Masahiro Yamada22433fc2014-02-04 17:24:27 +090014
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)
Masahiro Yamada22433fc2014-02-04 17:24:27 +090026__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
27subdir- += $(__subdir-)
28
29# Subdirectories we need to descend into
30
31subdir-ym := $(sort $(subdir-y) $(subdir-m))
Masahiro Yamada176d0982014-10-30 11:06:13 +090032subdir-ymn := $(sort $(subdir-ym) $(subdir-))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090033
34# Add subdir path
35
36subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
37
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090038# Temporal work-around for U-Boot
39
Masahiro Yamada6bd04bb2014-03-28 14:55:02 +090040subdir-ymn := $(foreach f, $(subdir-ymn), \
41 $(if $(wildcard $(srctree)/$f/Makefile),$f))
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090042
Masahiro Yamada22433fc2014-02-04 17:24:27 +090043# build a list of files to remove, usually relative to the current
44# directory
45
Masahiro Yamada021f0492014-09-05 01:56:51 +090046__clean-files := $(extra-y) $(extra-m) $(extra-) \
47 $(always) $(targets) $(clean-files) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +090048 $(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
69quiet_cmd_clean = CLEAN $(obj)
70 cmd_clean = rm -f $(__clean-files)
71quiet_cmd_cleandir = CLEAN $(__clean-dirs)
72 cmd_cleandir = rm -rf $(__clean-dirs)
73
74
75__clean: $(subdir-ymn)
76ifneq ($(strip $(__clean-files)),)
77 +$(call cmd,clean)
78endif
79ifneq ($(strip $(__clean-dirs)),)
80 +$(call cmd,cleandir)
81endif
82ifneq ($(strip $(clean-rule)),)
83 +$(clean-rule)
84endif
85 @:
86
87
88# ===========================================================================
89# Generic stuff
90# ===========================================================================
91
92# Descending
93# ---------------------------------------------------------------------------
94
95PHONY += $(subdir-ymn)
96$(subdir-ymn):
97 $(Q)$(MAKE) $(clean)=$@
98
99# If quiet is set, only print short version of command
100
101cmd = @$(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)