scripts/Makefile.clean

   1 # SPDX-License-Identifier: GPL-2.0
   2 # ==========================================================================
   3 # Cleaning up
   4 # ==========================================================================
   5
   6 src := $(srcroot)/$(obj)
   7
   8 PHONY := __clean
   9 __clean:
  10
  11 include $(srctree)/scripts/Kbuild.include
  12 include $(kbuild-file)
  13
  14 # Figure out what we need to build from the various variables
  15 # ==========================================================================
  16
  17 subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \
  18                 $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-))))
  19
  20 # Add subdir path
  21
  22 subdir-ymn      := $(addprefix $(obj)/,$(subdir-ymn))
  23
  24 # build a list of files to remove, usually relative to the current
  25 # directory
  26
  27 __clean-files   := \
  28         $(clean-files) $(targets) $(hostprogs) $(userprogs) \
  29         $(extra-y) $(extra-m) $(extra-) \
  30         $(always-y) $(always-m) $(always-) \
  31         $(hostprogs-always-y) $(hostprogs-always-m) $(hostprogs-always-) \
  32         $(userprogs-always-y) $(userprogs-always-m) $(userprogs-always-)
  33
  34 __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
  35
  36 __clean-files   := $(wildcard $(addprefix $(obj)/, $(__clean-files)))
  37
  38 # ==========================================================================
  39
  40 # To make this rule robust against "Argument list too long" error,
  41 # remove $(obj)/ prefix, and restore it by a shell command.
  42 quiet_cmd_clean = CLEAN   $(obj)
  43       cmd_clean = printf '$(obj)/%s ' $(patsubst $(obj)/%,%,$(__clean-files)) | xargs rm -rf
  44
  45 __clean: $(subdir-ymn)
  46 ifneq ($(strip $(__clean-files)),)
  47         $(call cmd,clean)
  48 endif
  49         @:
  50
  51
  52 # ===========================================================================
  53 # Generic stuff
  54 # ===========================================================================
  55
  56 # Descending
  57 # ---------------------------------------------------------------------------
  58
  59 PHONY += $(subdir-ymn)
  60 $(subdir-ymn):
  61         $(Q)$(MAKE) $(clean)=$@
  62
  63 .PHONY: $(PHONY)