# our default target
  .PHONY: all
  all:

  ifeq ($(CONFIG_TPL_BUILD),y)
    src := $(patsubst tpl/%,%,$(obj))
  else
    ifeq ($(CONFIG_SPL_BUILD),y)
      src := $(patsubst spl/%,%,$(obj))
    else
      src := $(obj)
    endif
  endif

  include $(srctree)/scripts/Kbuild.include

  include $(srctree)/config.mk

  # variable LIB is used in examples/standalone/Makefile

  __LIB := $(obj)/built-in.o
  LIBGCC = $(obj)/libgcc.o

  SRCS :=

  subdir-y :=
  obj-dirs :=

  kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
  include $(kbuild-dir)/Makefile

  # Do not include host rules unless needed
  ifneq ($(hostprogs-y)$(hostprogs-m),)
  include $(SRCTREE)/scripts/Makefile.host.tmp
  endif

  # Going forward use the following
  obj-y := $(sort $(obj-y))
  extra-y := $(sort $(extra-y))

  always := $(sort $(always))

  lib-y := $(sort $(lib-y))

  subdir-y 	+= $(patsubst %/,%,$(filter %/, $(obj-y)))

  obj-y		:= $(patsubst %/, %/built-in.o, $(obj-y))
  subdir-obj-y	:= $(filter %/built-in.o, $(obj-y))

  subdir-obj-y	:= $(addprefix $(obj)/,$(subdir-obj-y))
  
  SRCS	+= $(obj-y:.o=.c) $(obj-y:.o=.S) $(lib-y:.o=.c) \
  	$(lib-y:.o=.S) $(extra-y:.o=.c) $(extra-y:.o=.S)

  SRCS := $(addprefix $(if $(KBUILD_SRC),$(srctree)/$(src)/,$(src)/),$(SRCS))
  SRCS := $(wildcard $(SRCS))
  
  OBJS	:= $(addprefix $(obj)/,$(obj-y))

  # $(obj-dirs) is a list of directories that contain object files

  
  obj-dirs += $(dir $(OBJS))

  _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))

  # Create directories for object files if directory does not exist
  # Needed when obj-y := dir/file.o syntax is used
  _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))

  LGOBJS := $(addprefix $(obj)/,$(sort $(lib-y)))

  all: $(__LIB) $(addprefix $(obj)/,$(extra-y) $(always)) $(subdir-y)

  $(__LIB):	$(obj)/.depend $(OBJS)

  	$(call cmd_link_o_target, $(OBJS))
  
  ifneq ($(strip $(lib-y)),)
  all: $(LIBGCC)

  $(LIBGCC): $(obj)/.depend $(LGOBJS)

  	$(call cmd_link_o_target, $(LGOBJS))
  endif

  ifneq ($(subdir-obj-y),)
  # Descending
  $(subdir-obj-y): $(subdir-y)

  endif

  ifneq ($(subdir-y),)

  $(subdir-y): FORCE

  	$(MAKE) $(build)=$(obj)/$@

  endif

  #########################################################################

  # Allow boards to use custom optimize flags on a per dir/file basis
  ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
  ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
  EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
  ALL_CFLAGS += $(EXTRA_CPPFLAGS)
  
  # The _DEP version uses the $< file target (for dependency generation)
  # See rules.mk
  EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
  		$(CPPFLAGS_$(BCURDIR))

  $(obj)/%.s:	$(src)/%.S

  	$(CPP) $(ALL_AFLAGS) -o $@ $<

  $(obj)/%.o:	$(src)/%.S

  	$(CC)  $(ALL_AFLAGS) -o $@ $< -c

  $(obj)/%.o:	$(src)/%.c

  ifneq ($(CHECKSRC),0)
  	$(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
  endif
  	$(CC)  $(ALL_CFLAGS) -o $@ $< -c

  $(obj)/%.i:	$(src)/%.c

  	$(CPP) $(ALL_CFLAGS) -o $@ $< -c

  $(obj)/%.s:	$(src)/%.c

  	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
  
  # If the list of objects to link is empty, just create an empty built-in.o
  cmd_link_o_target = $(if $(strip $1),\
  		      $(LD) $(LDFLAGS) -r -o $@ $1,\
  		      rm -f $@; $(AR) rcs $@ )
  
  #########################################################################

  # defines $(obj)/.depend target

  
  include $(TOPDIR)/rules.mk

  sinclude $(obj)/.depend

  
  #########################################################################

  
  .PHONY: FORCE