| 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # ========================================================================== |
| 3 | # Cleaning up |
| 4 | # ========================================================================== |
| 5 | |
| 6 | src := $(obj) |
| 7 | |
| 8 | PHONY := __clean |
| 9 | __clean: |
| 10 | |
| 11 | include $(srctree)/scripts/Kbuild.include |
| 12 | include $(kbuild-file) |
| 13 | |
| 14 | # Figure out what we need to build from the various variables |
| 15 | # ========================================================================== |
| 16 | |
| 17 | subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \ |
| 18 | $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-)))) |
| 19 | |
| 20 | # Add subdir path |
| 21 | |
| 22 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) |
| 23 | |
| 24 | # build a list of files to remove, usually relative to the current |
| 25 | # directory |
| 26 | |
| 27 | __clean-files := \ |
| 28 | $(clean-files) $(targets) $(hostprogs) $(userprogs) \ |
| 29 | $(extra-y) $(extra-m) $(extra-) \ |
| 30 | $(always-y) $(always-m) $(always-) \ |
| 31 | $(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \ |
| 32 | $(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-) |
| 33 | |
| 34 | __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) |
| 35 | |
| 36 | __clean-files := $(wildcard $(addprefix $(obj)/, $(__clean-files))) |
| 37 | |
| 38 | # ========================================================================== |
| 39 | |
| 40 | # To make this rule robust against "Argument list too long" error, |
| 41 | # remove $(obj)/ prefix, and restore it by a shell command. |
| 42 | quiet_cmd_clean = CLEAN $(obj) |
| 43 | cmd_clean = printf '$(obj)/%s ' $(patsubst $(obj)/%,%,$(__clean-files)) | xargs rm -rf |
| 44 | |
| 45 | __clean: $(subdir-ymn) |
| 46 | ifneq ($(strip $(__clean-files)),) |
| 47 | $(call cmd,clean) |
| 48 | endif |
| 49 | @: |
| 50 | |
| 51 | |
| 52 | # =========================================================================== |
| 53 | # Generic stuff |
| 54 | # =========================================================================== |
| 55 | |
| 56 | # Descending |
| 57 | # --------------------------------------------------------------------------- |
| 58 | |
| 59 | PHONY += $(subdir-ymn) |
| 60 | $(subdir-ymn): |
| 61 | $(Q)$(MAKE) $(clean)=$@ |
| 62 | |
| 63 | .PHONY: $(PHONY) |