LXR linux/scripts/Makefile.modbuiltin

   1# ==========================================================================
   2# Generating modules.builtin
   3# ==========================================================================
   4
   5src := $(obj)
   6
   7PHONY := __modbuiltin
   8__modbuiltin:
   9
  10-include include/config/auto.conf
  11# tristate.conf sets tristate variables to uppercase 'Y' or 'M'
  12# That way, we get the list of built-in modules in obj-Y
  13-include include/config/tristate.conf
  14
  15include scripts/Kbuild.include
  16
  17# The filename Kbuild has precedence over Makefile
  18kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
  19kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
  20include $(kbuild-file)
  21
  22include scripts/Makefile.lib
  23__subdir-Y     := $(patsubst %/,%,$(filter %/, $(obj-Y)))
  24subdir-Y       += $(__subdir-Y)
  25subdir-ym      := $(sort $(subdir-y) $(subdir-Y) $(subdir-m))
  26subdir-ym      := $(addprefix $(obj)/,$(subdir-ym))
  27obj-Y          := $(addprefix $(obj)/,$(obj-Y))
  28
  29modbuiltin-subdirs := $(patsubst %,%/modules.builtin, $(subdir-ym))
  30modbuiltin-mods    := $(filter %.ko, $(obj-Y:.o=.ko))
  31modbuiltin-target  := $(obj)/modules.builtin
  32
  33__modbuiltin: $(modbuiltin-target) $(subdir-ym)
  34        @:
  35
  36$(modbuiltin-target): $(subdir-ym) FORCE
  37        $(Q)(for m in $(modbuiltin-mods); do echo kernel/$$m; done;     \
  38        cat /dev/null $(modbuiltin-subdirs)) > $@
  39
  40PHONY += FORCE
  41
  42FORCE:
  43
  44# Descending
  45# ---------------------------------------------------------------------------
  46
  47PHONY += $(subdir-ym)
  48$(subdir-ym):
  49        $(Q)$(MAKE) $(modbuiltin)=$@
  50
  51
  52# Declare the contents of the .PHONY variable as phony.  We keep that
  53# information in a variable se we can use it in if_changed and friends.
  54
  55.PHONY: $(PHONY)
  56