Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 2 | # ========================================================================== |
| 3 | # Cleaning up |
| 4 | # ========================================================================== |
| 5 | |
| 6 | src := $(obj) |
| 7 | |
| 8 | PHONY := __clean |
| 9 | __clean: |
| 10 | |
Masahiro Yamada | 98bd0e0 | 2015-07-05 01:56:55 +0900 | [diff] [blame] | 11 | include scripts/Kbuild.include |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 12 | |
| 13 | # The filename Kbuild has precedence over Makefile |
| 14 | kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) |
| 15 | include $(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 | |
| 20 | __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) |
| 21 | subdir-y += $(__subdir-y) |
| 22 | __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) |
| 23 | subdir-m += $(__subdir-m) |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 24 | __subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) |
| 25 | subdir- += $(__subdir-) |
| 26 | |
| 27 | # Subdirectories we need to descend into |
| 28 | |
| 29 | subdir-ym := $(sort $(subdir-y) $(subdir-m)) |
Masahiro Yamada | 176d098 | 2014-10-30 11:06:13 +0900 | [diff] [blame] | 30 | subdir-ymn := $(sort $(subdir-ym) $(subdir-)) |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 31 | |
| 32 | # Add subdir path |
| 33 | |
| 34 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) |
| 35 | |
Masahiro Yamada | efcf861 | 2014-02-04 17:24:40 +0900 | [diff] [blame] | 36 | # Temporal work-around for U-Boot |
| 37 | |
Masahiro Yamada | 6bd04bb | 2014-03-28 14:55:02 +0900 | [diff] [blame] | 38 | subdir-ymn := $(foreach f, $(subdir-ymn), \ |
| 39 | $(if $(wildcard $(srctree)/$f/Makefile),$f)) |
Masahiro Yamada | efcf861 | 2014-02-04 17:24:40 +0900 | [diff] [blame] | 40 | |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 41 | # build a list of files to remove, usually relative to the current |
| 42 | # directory |
| 43 | |
Masahiro Yamada | 021f049 | 2014-09-05 01:56:51 +0900 | [diff] [blame] | 44 | __clean-files := $(extra-y) $(extra-m) $(extra-) \ |
| 45 | $(always) $(targets) $(clean-files) \ |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 46 | $(host-progs) \ |
| 47 | $(hostprogs-y) $(hostprogs-m) $(hostprogs-) |
| 48 | |
| 49 | __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) |
| 50 | |
Masahiro Yamada | 98bd0e0 | 2015-07-05 01:56:55 +0900 | [diff] [blame] | 51 | # clean-files is given relative to the current directory, unless it |
| 52 | # starts with $(objtree)/ (which means "./", so do not add "./" unless |
| 53 | # you want to delete a file from the toplevel object directory). |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 54 | |
| 55 | __clean-files := $(wildcard \ |
Masahiro Yamada | 98bd0e0 | 2015-07-05 01:56:55 +0900 | [diff] [blame] | 56 | $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ |
| 57 | $(filter $(objtree)/%, $(__clean-files))) |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 58 | |
Masahiro Yamada | 98bd0e0 | 2015-07-05 01:56:55 +0900 | [diff] [blame] | 59 | # same as clean-files |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 60 | |
| 61 | __clean-dirs := $(wildcard \ |
Masahiro Yamada | 98bd0e0 | 2015-07-05 01:56:55 +0900 | [diff] [blame] | 62 | $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ |
| 63 | $(filter $(objtree)/%, $(clean-dirs))) |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 64 | |
| 65 | # ========================================================================== |
| 66 | |
| 67 | quiet_cmd_clean = CLEAN $(obj) |
| 68 | cmd_clean = rm -f $(__clean-files) |
| 69 | quiet_cmd_cleandir = CLEAN $(__clean-dirs) |
| 70 | cmd_cleandir = rm -rf $(__clean-dirs) |
| 71 | |
| 72 | |
| 73 | __clean: $(subdir-ymn) |
| 74 | ifneq ($(strip $(__clean-files)),) |
| 75 | +$(call cmd,clean) |
| 76 | endif |
| 77 | ifneq ($(strip $(__clean-dirs)),) |
| 78 | +$(call cmd,cleandir) |
| 79 | endif |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 80 | @: |
| 81 | |
| 82 | |
| 83 | # =========================================================================== |
| 84 | # Generic stuff |
| 85 | # =========================================================================== |
| 86 | |
| 87 | # Descending |
| 88 | # --------------------------------------------------------------------------- |
| 89 | |
| 90 | PHONY += $(subdir-ymn) |
| 91 | $(subdir-ymn): |
| 92 | $(Q)$(MAKE) $(clean)=$@ |
| 93 | |
Masahiro Yamada | 22433fc | 2014-02-04 17:24:27 +0900 | [diff] [blame] | 94 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 95 | # information in a variable se we can use it in if_changed and friends. |
| 96 | |
| 97 | .PHONY: $(PHONY) |