scripts/Makefile.clean

   1 # ==========================================================================
   2 # Cleaning up
   3 # ==========================================================================
   4
   5 src := $(obj)
   6
   7 .PHONY: __clean
   8 __clean:
   9
  10 include $(obj)/Makefile
  11
  12 # Figure out what we need to build from the various variables
  13 # ==========================================================================
  14
  15 __subdir-y      := $(patsubst %/,%,$(filter %/, $(obj-y)))
  16 subdir-y        += $(__subdir-y)
  17 __subdir-m      := $(patsubst %/,%,$(filter %/, $(obj-m)))
  18 subdir-m        += $(__subdir-m)
  19 __subdir-n      := $(patsubst %/,%,$(filter %/, $(obj-n)))
  20 subdir-n        += $(__subdir-n)
  21 __subdir-       := $(patsubst %/,%,$(filter %/, $(obj-)))
  22 subdir-         += $(__subdir-)
  23
  24 # Subdirectories we need to descend into
  25
  26 subdir-ym       := $(sort $(subdir-y) $(subdir-m))
  27 subdir-ymn      := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
  28
  29 # Add subdir path
  30
  31 subdir-ymn      := $(addprefix $(obj)/,$(subdir-ymn))
  32 __clean-files   := $(wildcard $(addprefix $(obj)/, \
  33                    $(extra-y) $(EXTRA_TARGETS) $(always) $(host-progs) \
  34                    $(targets) $(clean-files)))
  35
  36 # ==========================================================================
  37
  38 quiet_cmd_clean = CLEAN   $(obj)
  39       cmd_clean = rm -f $(__clean-files); $(clean-rule)
  40
  41 __clean: $(subdir-ymn)
  42 ifneq ($(strip $(__clean-files) $(clean-rule)),)
  43         +$(call cmd,clean)
  44 else
  45         @:
  46 endif
  47
  48 # ===========================================================================
  49 # Generic stuff
  50 # ===========================================================================
  51
  52 # Descending
  53 # ---------------------------------------------------------------------------
  54
  55 .PHONY: $(subdir-ymn)
  56 $(subdir-ymn):
  57         $(Q)$(MAKE) $(clean)=$@
  58
  59 # If quiet is set, only print short version of command
  60
  61 cmd = @$(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
  62
  63 # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
  64 # Usage:
  65 # $(Q)$(MAKE) $(clean)=dir
  66 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj