busybox/scripts/Makefile.clean

# ==========================================================================
# Cleaning up
# ==========================================================================

src := $(obj)

PHONY := __clean
__clean:

# Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
# Usage:
# $(Q)$(MAKE) $(clean)=dir
clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj

# The filename Kbuild has precedence over Makefile
kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)

# Figure out what we need to build from the various variables
# ==========================================================================

__subdir-y	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
subdir-y	+= $(__subdir-y)
__subdir-m	:= $(patsubst %/,%,$(filter %/, $(obj-m)))
subdir-m	+= $(__subdir-m)
__subdir-n	:= $(patsubst %/,%,$(filter %/, $(obj-n)))
subdir-n	+= $(__subdir-n)
__subdir-	:= $(patsubst %/,%,$(filter %/, $(obj-)))
subdir-		+= $(__subdir-)

# Subdirectories we need to descend into

subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
subdir-ymn      := $(sort $(subdir-ym) $(subdir-n) $(subdir-))

# Add subdir path

subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))

# build a list of files to remove, usually releative to the current
# directory

__clean-files	:= $(extra-y) $(EXTRA_TARGETS) $(always) \
		   $(targets) $(clean-files)             \
		   $(host-progs)                         \
		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)

# as clean-files is given relative to the current directory, this adds
# a $(obj) prefix, except for absolute paths

__clean-files   := $(wildcard                                               \
                   $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
		   $(filter /%, $(__clean-files)))

# as clean-dirs is given relative to the current directory, this adds
# a $(obj) prefix, except for absolute paths

__clean-dirs    := $(wildcard                                               \
                   $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs)))    \
		   $(filter /%, $(clean-dirs)))

# ==========================================================================

quiet_cmd_clean    = CLEAN   $(obj)
      cmd_clean    = rm -f $(__clean-files)
quiet_cmd_cleandir = CLEAN   $(__clean-dirs)
      cmd_cleandir = rm -rf $(__clean-dirs)


__clean: $(subdir-ymn)
ifneq ($(strip $(__clean-files)),)
	+$(call cmd,clean)
endif
ifneq ($(strip $(__clean-dirs)),)
	+$(call cmd,cleandir)
endif
ifneq ($(strip $(clean-rule)),)
	+$(clean-rule)
endif
	@:


# ===========================================================================
# Generic stuff
# ===========================================================================

# Descending
# ---------------------------------------------------------------------------

PHONY += $(subdir-ymn)
$(subdir-ymn):
	$(Q)$(MAKE) $(clean)=$@

# If quiet is set, only print short version of command

cmd = @$(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))' &&) $(cmd_$(1))


# Declare the contents of the .PHONY variable as phony.  We keep that
# information in a variable se we can use it in if_changed and friends.

.PHONY: $(PHONY)
1	niro	532	# ==========================================================================
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
13			clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
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)
26			__subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n)))
27			subdir-n += $(__subdir-n)
28			__subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
29			subdir- += $(__subdir-)
30
31			# Subdirectories we need to descend into
32
33			subdir-ym := $(sort $(subdir-y) $(subdir-m))
34			subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
35
36			# Add subdir path
37
38			subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
39
40			# build a list of files to remove, usually releative to the current
41			# directory
42
43			__clean-files := $(extra-y) $(EXTRA_TARGETS) $(always) \
44			$(targets) $(clean-files) \
45			$(host-progs) \
46			$(hostprogs-y) $(hostprogs-m) $(hostprogs-)
47
48			# as clean-files is given relative to the current directory, this adds
49			# a $(obj) prefix, except for absolute paths
50
51			__clean-files := $(wildcard \
52			$(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
53			$(filter /%, $(__clean-files)))
54
55			# as clean-dirs is given relative to the current directory, this adds
56			# a $(obj) prefix, except for absolute paths
57
58			__clean-dirs := $(wildcard \
59			$(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
60			$(filter /%, $(clean-dirs)))
61
62			# ==========================================================================
63
64			quiet_cmd_clean = CLEAN $(obj)
65			cmd_clean = rm -f $(__clean-files)
66			quiet_cmd_cleandir = CLEAN $(__clean-dirs)
67			cmd_cleandir = rm -rf $(__clean-dirs)
68
69
70			__clean: $(subdir-ymn)
71			ifneq ($(strip $(__clean-files)),)
72			+$(call cmd,clean)
73			endif
74			ifneq ($(strip $(__clean-dirs)),)
75			+$(call cmd,cleandir)
76			endif
77			ifneq ($(strip $(clean-rule)),)
78			+$(clean-rule)
79			endif
80			@:
81
82
83			# ===========================================================================
84			# Generic stuff
85			# ===========================================================================
86
87			# Descending
88			# ---------------------------------------------------------------------------
89
90			PHONY += $(subdir-ymn)
91			$(subdir-ymn):
92			$(Q)$(MAKE) $(clean)=$@
93
94			# If quiet is set, only print short version of command
95
96			cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
97
98
99			# Declare the contents of the .PHONY variable as phony. We keep that
100			# information in a variable se we can use it in if_changed and friends.
101
102			.PHONY: $(PHONY)