[3320] | 1 | # ==========================================================================
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| 2 | # Cleaning up
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| 3 | # ==========================================================================
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| 4 |
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| 5 | src := $(obj)
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| 6 |
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| 7 | PHONY := __clean
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| 8 | __clean:
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| 9 |
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| 10 | # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
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| 11 | # Usage:
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| 12 | # $(Q)$(MAKE) $(clean)=dir
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| 13 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
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| 14 |
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| 15 | # The filename Kbuild has precedence over Makefile
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| 16 | kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
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| 17 | -include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
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| 18 |
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| 19 | # Figure out what we need to build from the various variables
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| 20 | # ==========================================================================
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| 21 |
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| 22 | __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
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| 23 | subdir-y += $(__subdir-y)
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| 24 | __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
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| 25 | subdir-m += $(__subdir-m)
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| 26 | __subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n)))
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| 27 | subdir-n += $(__subdir-n)
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| 28 | __subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
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| 29 | subdir- += $(__subdir-)
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| 30 |
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| 31 | # Subdirectories we need to descend into
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| 32 |
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| 33 | subdir-ym := $(sort $(subdir-y) $(subdir-m))
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| 34 | subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
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| 35 |
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| 36 | # Add subdir path
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| 37 |
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| 38 | subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
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| 39 |
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| 40 | # build a list of files to remove, usually releative to the current
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| 41 | # directory
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| 42 |
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| 43 | __clean-files := $(extra-y) $(EXTRA_TARGETS) $(always) \
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| 44 | $(targets) $(clean-files) \
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| 45 | $(host-progs) \
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| 46 | $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
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| 47 |
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| 48 | # as clean-files is given relative to the current directory, this adds
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| 49 | # a $(obj) prefix, except for absolute paths
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| 50 |
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| 51 | __clean-files := $(wildcard \
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| 52 | $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
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| 53 | $(filter /%, $(__clean-files)))
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| 54 |
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| 55 | # as clean-dirs is given relative to the current directory, this adds
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| 56 | # a $(obj) prefix, except for absolute paths
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| 57 |
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| 58 | __clean-dirs := $(wildcard \
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| 59 | $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
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| 60 | $(filter /%, $(clean-dirs)))
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| 61 |
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| 62 | # ==========================================================================
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| 63 |
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| 64 | quiet_cmd_clean = CLEAN $(obj)
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| 65 | cmd_clean = rm -f $(__clean-files)
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| 66 | quiet_cmd_cleandir = CLEAN $(__clean-dirs)
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| 67 | cmd_cleandir = rm -rf $(__clean-dirs)
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| 68 |
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| 69 |
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| 70 | __clean: $(subdir-ymn)
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| 71 | ifneq ($(strip $(__clean-files)),)
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| 72 | +$(call cmd,clean)
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| 73 | endif
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| 74 | ifneq ($(strip $(__clean-dirs)),)
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| 75 | +$(call cmd,cleandir)
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| 76 | endif
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| 77 | ifneq ($(strip $(clean-rule)),)
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| 78 | +$(clean-rule)
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| 79 | endif
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| 80 | @:
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| 81 |
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| 82 |
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| 83 | # ===========================================================================
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| 84 | # Generic stuff
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| 85 | # ===========================================================================
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| 86 |
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| 87 | # Descending
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| 88 | # ---------------------------------------------------------------------------
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| 89 |
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| 90 | PHONY += $(subdir-ymn)
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| 91 | $(subdir-ymn):
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| 92 | $(Q)$(MAKE) $(clean)=$@
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| 93 |
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| 94 | # If quiet is set, only print short version of command
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| 95 |
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| 96 | cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
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| 97 |
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| 98 |
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| 99 | # Declare the contents of the .PHONY variable as phony. We keep that
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| 100 | # information in a variable se we can use it in if_changed and friends.
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| 101 |
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| 102 | .PHONY: $(PHONY)
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