scripts/Makefile.clean

   1 # SPDX-License-Identifier: GPL-2.0
   2 # ==========================================================================
   3 # Cleaning up
   4 # ==========================================================================
   5
   6 src := $(obj)
   7
   8 PHONY := __clean
   9 __clean:
  10
  11 include scripts/Kbuild.include
  12
  13 # The filename Kbuild has precedence over Makefile
  14 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
  15 include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
  16
  17 # Figure out what we need to build from the various variables
  18 # ==========================================================================
  19
  20 subdir-ymn := $(sort $(subdir-y) $(subdir-m) $(subdir-) \
  21                 $(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m) $(obj-))))
  22
  23 # Add subdir path
  24
  25 subdir-ymn      := $(addprefix $(obj)/,$(subdir-ymn))
  26
  27 # build a list of files to remove, usually relative to the current
  28 # directory
  29
  30 __clean-files   := $(extra-y) $(extra-m) $(extra-)       \
  31                    $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files)   \
  32                    $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
  33                    $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
  34                    $(hostcxxlibs-y) $(hostcxxlibs-m)
  35
  36 __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
  37
  38 # clean-files is given relative to the current directory, unless it
  39 # starts with $(objtree)/ (which means "./", so do not add "./" unless
  40 # you want to delete a file from the toplevel object directory).
  41
  42 __clean-files   := $(wildcard                                               \
  43                    $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \
  44                    $(filter $(objtree)/%, $(__clean-files)))
  45
  46 # ==========================================================================
  47
  48 quiet_cmd_clean = CLEAN   $(obj)
  49       cmd_clean = rm -rf $(__clean-files)
  50
  51 __clean: $(subdir-ymn)
  52 ifneq ($(strip $(__clean-files)),)
  53         $(call cmd,clean)
  54 endif
  55         @:
  56
  57
  58 # ===========================================================================
  59 # Generic stuff
  60 # ===========================================================================
  61
  62 # Descending
  63 # ---------------------------------------------------------------------------
  64
  65 PHONY += $(subdir-ymn)
  66 $(subdir-ymn):
  67         $(Q)$(MAKE) $(clean)=$@
  68
  69 .PHONY: $(PHONY)