xref: /linux/scripts/Makefile.clean (revision 5860800e8696d2cbbd1a0dd60b433549d176e668)
1# SPDX-License-Identifier: GPL-2.0
2# ==========================================================================
3# Cleaning up
4# ==========================================================================
5
6src := $(obj)
7
8PHONY := __clean
9__clean:
10
11include $(srctree)/scripts/Kbuild.include
12
13# The filename Kbuild has precedence over Makefile
14kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
15include $(or $(wildcard $(kbuild-dir)/Kbuild),$(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__clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
38
39__clean-files   := $(wildcard $(addprefix $(obj)/, $(__clean-files)))
40
41# ==========================================================================
42
43quiet_cmd_clean = CLEAN   $(obj)
44      cmd_clean = rm -rf $(__clean-files)
45
46__clean: $(subdir-ymn)
47ifneq ($(strip $(__clean-files)),)
48	$(call cmd,clean)
49endif
50	@:
51
52
53# ===========================================================================
54# Generic stuff
55# ===========================================================================
56
57# Descending
58# ---------------------------------------------------------------------------
59
60PHONY += $(subdir-ymn)
61$(subdir-ymn):
62	$(Q)$(MAKE) $(clean)=$@
63
64.PHONY: $(PHONY)
65