blob: 5cd0f51770a8d69112ef9337da2b130a62567012 [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
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
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090040# Temporal work-around for U-Boot
41
42subdir-ymn := $(foreach f, $(subdir-ymn), $(if $(wildcard $f/Makefile),$f))
43
Masahiro Yamada22433fc2014-02-04 17:24:27 +090044# build a list of files to remove, usually relative to the current
45# directory
46
47__clean-files := $(extra-y) $(always) \
48 $(targets) $(clean-files) \
49 $(host-progs) \
50 $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
51
52__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
53
54# as clean-files is given relative to the current directory, this adds
55# a $(obj) prefix, except for absolute paths
56
57__clean-files := $(wildcard \
58 $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
59 $(filter /%, $(__clean-files)))
60
61# as clean-dirs is given relative to the current directory, this adds
62# a $(obj) prefix, except for absolute paths
63
64__clean-dirs := $(wildcard \
65 $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
66 $(filter /%, $(clean-dirs)))
67
68# ==========================================================================
69
70quiet_cmd_clean = CLEAN $(obj)
71 cmd_clean = rm -f $(__clean-files)
72quiet_cmd_cleandir = CLEAN $(__clean-dirs)
73 cmd_cleandir = rm -rf $(__clean-dirs)
74
75
76__clean: $(subdir-ymn)
77ifneq ($(strip $(__clean-files)),)
78 +$(call cmd,clean)
79endif
80ifneq ($(strip $(__clean-dirs)),)
81 +$(call cmd,cleandir)
82endif
83ifneq ($(strip $(clean-rule)),)
84 +$(clean-rule)
85endif
86 @:
87
88
89# ===========================================================================
90# Generic stuff
91# ===========================================================================
92
93# Descending
94# ---------------------------------------------------------------------------
95
96PHONY += $(subdir-ymn)
97$(subdir-ymn):
98 $(Q)$(MAKE) $(clean)=$@
99
100# If quiet is set, only print short version of command
101
102cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
103
104
105# Declare the contents of the .PHONY variable as phony. We keep that
106# information in a variable se we can use it in if_changed and friends.
107
108.PHONY: $(PHONY)