xref: /openbmc/u-boot/scripts/Makefile.clean (revision b2e02d28) 
1# ==========================================================================
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 $(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-	:= $(patsubst %/,%,$(filter %/, $(obj-)))
27subdir-		+= $(__subdir-)
28
29# Subdirectories we need to descend into
30
31subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
32subdir-ymn      := $(sort $(subdir-ym) $(subdir-))
33
34# Add subdir path
35
36subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
37
38# Temporal work-around for U-Boot
39
40subdir-ymn	:= $(foreach f, $(subdir-ymn), \
41				$(if $(wildcard $(srctree)/$f/Makefile),$f))
42
43# build a list of files to remove, usually relative to the current
44# directory
45
46__clean-files	:= $(extra-y) $(extra-m) $(extra-)       \
47		   $(always) $(targets) $(clean-files)   \
48		   $(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)
108