xref: /openbmc/linux/scripts/Makefile.clean (revision 52cdded0) 
1# SPDX-License-Identifier: GPL-2.0
2# ==========================================================================
3# Cleaning up
4# ==========================================================================
5
6src := $(obj)
7
8PHONY := __clean
9__clean:
10
11include scripts/Kbuild.include
12
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
20subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \
21		$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-))))
22
23# Add subdir path
24
25subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
26
27# build a list of files to remove, usually relative to the current
28# directory
29
30__clean-files	:= \
31	$(clean-files) $(targets) $(hostprogs) $(userprogs) \
32	$(extra-y) $(extra-m) $(extra-) \
33	$(always-y) $(always-m) $(always-) \
34	$(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \
35	$(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-)
36
37# deprecated
38__clean-files	+= $(always) $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
39
40__clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
41
42# clean-files is given relative to the current directory, unless it
43# starts with $(objtree)/ (which means "./", so do not add "./" unless
44# you want to delete a file from the toplevel object directory).
45
46__clean-files   := $(wildcard                                               \
47		   $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
48		   $(filter $(objtree)/%, $(__clean-files)))
49
50# ==========================================================================
51
52quiet_cmd_clean = CLEAN   $(obj)
53      cmd_clean = rm -rf $(__clean-files)
54
55__clean: $(subdir-ymn)
56ifneq ($(strip $(__clean-files)),)
57	$(call cmd,clean)
58endif
59	@:
60
61
62# ===========================================================================
63# Generic stuff
64# ===========================================================================
65
66# Descending
67# ---------------------------------------------------------------------------
68
69PHONY += $(subdir-ymn)
70$(subdir-ymn):
71	$(Q)$(MAKE) $(clean)=$@
72
73.PHONY: $(PHONY)
74