# ========================================================================== # 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)