scripts/Makefile.clean

   1 # ==========================================================================
   2 # Cleaning up
   3 # ==========================================================================
   4
   5 src := $(obj)
   6
   7 .PHONY: __clean
   8 __clean:
   9
  10 include $(if $(wildcard $(obj)/Kbuild), $(obj)/Kbuild, $(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
  33 # build a list of files to remove, usually releative to the current
  34 # directory
  35
  36 __clean-files   := $(extra-y) $(EXTRA_TARGETS) $(always) \
  37                    $(targets) $(clean-files)             \
  38                    $(host-progs)                         \
  39                    $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
  40
  41 # as clean-files is given relative to the current directory, this adds
  42 # a $(obj) prefix, except for absolute paths
  43
  44 __clean-files   := $(wildcard                                               \
  45                    $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
  46                    $(filter /%, $(__clean-files)))
  47
  48 # as clean-dirs is given relative to the current directory, this adds
  49 # a $(obj) prefix, except for absolute paths
  50
  51 __clean-dirs    := $(wildcard                                               \
  52                    $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs)))    \
  53                    $(filter /%, $(clean-dirs)))
  54
  55 # ==========================================================================
  56
  57 quiet_cmd_clean    = CLEAN   $(obj)
  58       cmd_clean    = rm -f $(__clean-files)
  59 quiet_cmd_cleandir = CLEAN   $(__clean-dirs)
  60       cmd_cleandir = rm -rf $(__clean-dirs)
  61
  62
  63 __clean: $(subdir-ymn)
  64 ifneq ($(strip $(__clean-files)),)
  65         +$(call cmd,clean)
  66 endif
  67 ifneq ($(strip $(__clean-dirs)),)
  68         +$(call cmd,cleandir)
  69 endif
  70 ifneq ($(strip $(clean-rule)),)
  71         +$(clean-rule)
  72 endif
  73         @:
  74
  75
  76 # ===========================================================================
  77 # Generic stuff
  78 # ===========================================================================
  79
  80 # Descending
  81 # ---------------------------------------------------------------------------
  82
  83 .PHONY: $(subdir-ymn)
  84 $(subdir-ymn):
  85         $(Q)$(MAKE) $(clean)=$@
  86
  87 # If quiet is set, only print short version of command
  88
  89 cmd = @$(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
  90
  91 # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
  92 # Usage:
  93 # $(Q)$(MAKE) $(clean)=dir
  94 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj