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Tom Rini83d290c2018-05-06 17:58:06 -04001# SPDX-License-Identifier: GPL-2.0
Masahiro Yamada22433fc2014-02-04 17:24:27 +09002# ==========================================================================
3# Cleaning up
4# ==========================================================================
5
6src := $(obj)
7
8PHONY := __clean
9__clean:
10
Masahiro Yamada98bd0e02015-07-05 01:56:55 +090011include scripts/Kbuild.include
Masahiro Yamada22433fc2014-02-04 17:24:27 +090012
13# The filename Kbuild has precedence over Makefile
14kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
15include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
16
17# Figure out what we need to build from the various variables
18# ==========================================================================
19
20__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
21subdir-y += $(__subdir-y)
22__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
23subdir-m += $(__subdir-m)
Masahiro Yamada22433fc2014-02-04 17:24:27 +090024__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
25subdir- += $(__subdir-)
26
27# Subdirectories we need to descend into
28
29subdir-ym := $(sort $(subdir-y) $(subdir-m))
Masahiro Yamada176d0982014-10-30 11:06:13 +090030subdir-ymn := $(sort $(subdir-ym) $(subdir-))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090031
32# Add subdir path
33
34subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
35
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090036# Temporal work-around for U-Boot
37
Masahiro Yamada6bd04bb2014-03-28 14:55:02 +090038subdir-ymn := $(foreach f, $(subdir-ymn), \
39 $(if $(wildcard $(srctree)/$f/Makefile),$f))
Masahiro Yamadaefcf8612014-02-04 17:24:40 +090040
Masahiro Yamada22433fc2014-02-04 17:24:27 +090041# build a list of files to remove, usually relative to the current
42# directory
43
Masahiro Yamada021f0492014-09-05 01:56:51 +090044__clean-files := $(extra-y) $(extra-m) $(extra-) \
45 $(always) $(targets) $(clean-files) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +090046 $(host-progs) \
47 $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
48
49__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
50
Masahiro Yamada98bd0e02015-07-05 01:56:55 +090051# clean-files is given relative to the current directory, unless it
52# starts with $(objtree)/ (which means "./", so do not add "./" unless
53# you want to delete a file from the toplevel object directory).
Masahiro Yamada22433fc2014-02-04 17:24:27 +090054
55__clean-files := $(wildcard \
Masahiro Yamada98bd0e02015-07-05 01:56:55 +090056 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
57 $(filter $(objtree)/%, $(__clean-files)))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090058
Masahiro Yamada98bd0e02015-07-05 01:56:55 +090059# same as clean-files
Masahiro Yamada22433fc2014-02-04 17:24:27 +090060
61__clean-dirs := $(wildcard \
Masahiro Yamada98bd0e02015-07-05 01:56:55 +090062 $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \
63 $(filter $(objtree)/%, $(clean-dirs)))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090064
65# ==========================================================================
66
67quiet_cmd_clean = CLEAN $(obj)
68 cmd_clean = rm -f $(__clean-files)
69quiet_cmd_cleandir = CLEAN $(__clean-dirs)
70 cmd_cleandir = rm -rf $(__clean-dirs)
71
72
73__clean: $(subdir-ymn)
74ifneq ($(strip $(__clean-files)),)
75 +$(call cmd,clean)
76endif
77ifneq ($(strip $(__clean-dirs)),)
78 +$(call cmd,cleandir)
79endif
Masahiro Yamada22433fc2014-02-04 17:24:27 +090080 @:
81
82
83# ===========================================================================
84# Generic stuff
85# ===========================================================================
86
87# Descending
88# ---------------------------------------------------------------------------
89
90PHONY += $(subdir-ymn)
91$(subdir-ymn):
92 $(Q)$(MAKE) $(clean)=$@
93
Masahiro Yamada22433fc2014-02-04 17:24:27 +090094# Declare the contents of the .PHONY variable as phony. We keep that
95# information in a variable se we can use it in if_changed and friends.
96
97.PHONY: $(PHONY)