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Makefile | 2007-04-12 | 3.2 KB | 103 lines |
- # ==========================================================================
- # Cleaning up
- # ==========================================================================
-
- src := $(obj)
-
- PHONY := __clean
- __clean:
-
- # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
- # Usage:
- # $(Q)$(MAKE) $(clean)=dir
- clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
-
- # 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-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
- subdir-y += $(__subdir-y)
- __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
- subdir-m += $(__subdir-m)
- __subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n)))
- subdir-n += $(__subdir-n)
- __subdir- := $(patsubst %/,%,$(filter %/, $(obj-)))
- subdir- += $(__subdir-)
-
- # Subdirectories we need to descend into
-
- subdir-ym := $(sort $(subdir-y) $(subdir-m))
- subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
-
- # Add subdir path
-
- subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn))
-
- # build a list of files to remove, usually releative to the current
- # directory
-
- __clean-files := $(extra-y) $(EXTRA_TARGETS) $(always) \
- $(targets) $(clean-files) \
- $(host-progs) \
- $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
-
- # as clean-files is given relative to the current directory, this adds
- # a $(obj) prefix, except for absolute paths
-
- __clean-files := $(wildcard \
- $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
- $(filter /%, $(__clean-files)))
-
- # as clean-dirs is given relative to the current directory, this adds
- # a $(obj) prefix, except for absolute paths
-
- __clean-dirs := $(wildcard \
- $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \
- $(filter /%, $(clean-dirs)))
-
- # ==========================================================================
-
- quiet_cmd_clean = CLEAN $(obj)
- cmd_clean = rm -f $(__clean-files)
- quiet_cmd_cleandir = CLEAN $(__clean-dirs)
- cmd_cleandir = rm -rf $(__clean-dirs)
-
-
- __clean: $(subdir-ymn)
- ifneq ($(strip $(__clean-files)),)
- +$(call cmd,clean)
- endif
- ifneq ($(strip $(__clean-dirs)),)
- +$(call cmd,cleandir)
- endif
- ifneq ($(strip $(clean-rule)),)
- +$(clean-rule)
- endif
- @:
-
-
- # ===========================================================================
- # Generic stuff
- # ===========================================================================
-
- # Descending
- # ---------------------------------------------------------------------------
-
- PHONY += $(subdir-ymn)
- $(subdir-ymn):
- $(Q)$(MAKE) $(clean)=$@
-
- # If quiet is set, only print short version of command
-
- cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
-
-
- # Declare the contents of the .PHONY variable as phony. We keep that
- # information in a variable se we can use it in if_changed and friends.
-
- .PHONY: $(PHONY)
-