mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
3204a7fb98
VPATH is used in Kbuild to make pattern rules search for prerequisites in both $(objtree) and $(srctree). Some of *.c, *.S files are not real sources, but generated by tools such as flex, bison, perl. In contrast, I doubt the benefit of --include-dir=$(abs_srctree) because it is always clear which Makefiles are real sources, and which are not. So, my hope is to add $(srctree)/ prefix to all check-in Makefiles, then remove --include-dir=$(abs_srctree) flag in the future. I am touching only some Kbuild core parts for now. Treewide fixes will be needed to achieve this goal. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
70 lines
2.2 KiB
Text
70 lines
2.2 KiB
Text
# SPDX-License-Identifier: GPL-2.0
|
|
# ==========================================================================
|
|
# Cleaning up
|
|
# ==========================================================================
|
|
|
|
src := $(obj)
|
|
|
|
PHONY := __clean
|
|
__clean:
|
|
|
|
include $(srctree)/scripts/Kbuild.include
|
|
|
|
# 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-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \
|
|
$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-))))
|
|
|
|
# Add subdir path
|
|
|
|
subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
|
|
|
|
# build a list of files to remove, usually relative to the current
|
|
# directory
|
|
|
|
__clean-files := \
|
|
$(clean-files) $(targets) $(hostprogs) $(userprogs) \
|
|
$(extra-y) $(extra-m) $(extra-) \
|
|
$(always-y) $(always-m) $(always-) \
|
|
$(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \
|
|
$(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-)
|
|
|
|
__clean-files := $(filter-out $(no-clean-files), $(__clean-files))
|
|
|
|
# clean-files is given relative to the current directory, unless it
|
|
# starts with $(objtree)/ (which means "./", so do not add "./" unless
|
|
# you want to delete a file from the toplevel object directory).
|
|
|
|
__clean-files := $(wildcard \
|
|
$(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
|
|
$(filter $(objtree)/%, $(__clean-files)))
|
|
|
|
# ==========================================================================
|
|
|
|
quiet_cmd_clean = CLEAN $(obj)
|
|
cmd_clean = rm -rf $(__clean-files)
|
|
|
|
__clean: $(subdir-ymn)
|
|
ifneq ($(strip $(__clean-files)),)
|
|
$(call cmd,clean)
|
|
endif
|
|
@:
|
|
|
|
|
|
# ===========================================================================
|
|
# Generic stuff
|
|
# ===========================================================================
|
|
|
|
# Descending
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += $(subdir-ymn)
|
|
$(subdir-ymn):
|
|
$(Q)$(MAKE) $(clean)=$@
|
|
|
|
.PHONY: $(PHONY)
|