xref: /openbmc/u-boot/scripts/Makefile.clean (revision 23ff8633) 
1# ==========================================================================
2# Cleaning up
3# ==========================================================================
4
5src := $(obj)
6
7PHONY := __clean
8__clean:
9
10include scripts/Kbuild.include
11
12# The filename Kbuild has precedence over Makefile
13kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
14include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
15
16# Figure out what we need to build from the various variables
17# ==========================================================================
18
19__subdir-y	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
20subdir-y	+= $(__subdir-y)
21__subdir-m	:= $(patsubst %/,%,$(filter %/, $(obj-m)))
22subdir-m	+= $(__subdir-m)
23__subdir-	:= $(patsubst %/,%,$(filter %/, $(obj-)))
24subdir-		+= $(__subdir-)
25
26# Subdirectories we need to descend into
27
28subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
29subdir-ymn      := $(sort $(subdir-ym) $(subdir-))
30
31# Add subdir path
32
33subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
34
35# Temporal work-around for U-Boot
36
37subdir-ymn	:= $(foreach f, $(subdir-ymn), \
38				$(if $(wildcard $(srctree)/$f/Makefile),$f))
39
40# build a list of files to remove, usually relative to the current
41# directory
42
43__clean-files	:= $(extra-y) $(extra-m) $(extra-)       \
44		   $(always) $(targets) $(clean-files)   \
45		   $(host-progs)                         \
46		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
47
48__clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
49
50# clean-files is given relative to the current directory, unless it
51# starts with $(objtree)/ (which means "./", so do not add "./" unless
52# you want to delete a file from the toplevel object directory).
53
54__clean-files   := $(wildcard                                               \
55		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
56		   $(filter $(objtree)/%, $(__clean-files)))
57
58# same as clean-files
59
60__clean-dirs    := $(wildcard                                               \
61		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs)))    \
62		   $(filter $(objtree)/%, $(clean-dirs)))
63
64# ==========================================================================
65
66quiet_cmd_clean    = CLEAN   $(obj)
67      cmd_clean    = rm -f $(__clean-files)
68quiet_cmd_cleandir = CLEAN   $(__clean-dirs)
69      cmd_cleandir = rm -rf $(__clean-dirs)
70
71
72__clean: $(subdir-ymn)
73ifneq ($(strip $(__clean-files)),)
74	+$(call cmd,clean)
75endif
76ifneq ($(strip $(__clean-dirs)),)
77	+$(call cmd,cleandir)
78endif
79	@:
80
81
82# ===========================================================================
83# Generic stuff
84# ===========================================================================
85
86# Descending
87# ---------------------------------------------------------------------------
88
89PHONY += $(subdir-ymn)
90$(subdir-ymn):
91	$(Q)$(MAKE) $(clean)=$@
92
93# Declare the contents of the .PHONY variable as phony.  We keep that
94# information in a variable se we can use it in if_changed and friends.
95
96.PHONY: $(PHONY)
97