blob: 2e70c6f063544355b946339efc324ad182f1c79a
| 1 | # ========================================================================== |
| 2 | # Cleaning up |
| 3 | # ========================================================================== |
| 4 | |
| 5 | src := $(obj) |
| 6 | |
| 7 | PHONY := __clean |
| 8 | __clean: |
| 9 | |
| 10 | include scripts/Kbuild.include |
| 11 | |
| 12 | # The filename Kbuild has precedence over Makefile |
| 13 | kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) |
| 14 | -include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) |
| 15 | |
| 16 | # Figure out what we need to build from the various variables |
| 17 | # ========================================================================== |
| 18 | |
| 19 | __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) |
| 20 | subdir-y += $(__subdir-y) |
| 21 | __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) |
| 22 | subdir-m += $(__subdir-m) |
| 23 | __subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) |
| 24 | subdir- += $(__subdir-) |
| 25 | |
| 26 | # Subdirectories we need to descend into |
| 27 | |
| 28 | subdir-ym := $(sort $(subdir-y) $(subdir-m)) |
| 29 | subdir-ymn := $(sort $(subdir-ym) $(subdir-)) |
| 30 | |
| 31 | # Add subdir path |
| 32 | |
| 33 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) |
| 34 | |
| 35 | # build a list of files to remove, usually relative to the current |
| 36 | # directory |
| 37 | |
| 38 | __clean-files := $(extra-y) $(extra-m) $(extra-) \ |
| 39 | $(always) $(targets) $(clean-files) \ |
| 40 | $(host-progs) \ |
| 41 | $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \ |
| 42 | $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \ |
| 43 | $(hostcxxlibs-y) $(hostcxxlibs-m) |
| 44 | |
| 45 | __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) |
| 46 | |
| 47 | # clean-files is given relative to the current directory, unless it |
| 48 | # starts with $(objtree)/ (which means "./", so do not add "./" unless |
| 49 | # you want to delete a file from the toplevel object directory). |
| 50 | |
| 51 | __clean-files := $(wildcard \ |
| 52 | $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ |
| 53 | $(filter $(objtree)/%, $(__clean-files))) |
| 54 | |
| 55 | # same as clean-files |
| 56 | |
| 57 | __clean-dirs := $(wildcard \ |
| 58 | $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ |
| 59 | $(filter $(objtree)/%, $(clean-dirs))) |
| 60 | |
| 61 | # ========================================================================== |
| 62 | |
| 63 | quiet_cmd_clean = CLEAN $(obj) |
| 64 | cmd_clean = rm -f $(__clean-files) |
| 65 | quiet_cmd_cleandir = CLEAN $(__clean-dirs) |
| 66 | cmd_cleandir = rm -rf $(__clean-dirs) |
| 67 | |
| 68 | |
| 69 | __clean: $(subdir-ymn) |
| 70 | ifneq ($(strip $(__clean-files)),) |
| 71 | +$(call cmd,clean) |
| 72 | endif |
| 73 | ifneq ($(strip $(__clean-dirs)),) |
| 74 | +$(call cmd,cleandir) |
| 75 | endif |
| 76 | @: |
| 77 | |
| 78 | |
| 79 | # =========================================================================== |
| 80 | # Generic stuff |
| 81 | # =========================================================================== |
| 82 | |
| 83 | # Descending |
| 84 | # --------------------------------------------------------------------------- |
| 85 | |
| 86 | PHONY += $(subdir-ymn) |
| 87 | $(subdir-ymn): |
| 88 | $(Q)$(MAKE) $(clean)=$@ |
| 89 | |
| 90 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 91 | # information in a variable se we can use it in if_changed and friends. |
| 92 | |
| 93 | .PHONY: $(PHONY) |
| 94 |