init/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # Makefile for the linux kernel.
   4 #
   5
   6 ccflags-y := -fno-function-sections -fno-data-sections
   7
   8 obj-y                          := main.o version.o mounts.o
   9 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
  10 obj-y                          += noinitramfs.o
  11 else
  12 obj-$(CONFIG_BLK_DEV_INITRD)   += initramfs.o
  13 endif
  14 obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
  15
  16 obj-y                          += init_task.o
  17
  18 mounts-y                        := do_mounts.o
  19 mounts-$(CONFIG_BLK_DEV_RAM)    += do_mounts_rd.o
  20 mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
  21
  22 # dependencies on generated files need to be listed explicitly
  23 $(obj)/version.o: include/generated/compile.h
  24
  25 # compile.h changes depending on hostname, generation number, etc,
  26 # so we regenerate it always.
  27 # mkcompile_h will make sure to only update the
  28 # actual file if its content has changed.
  29
  30 quiet_cmd_compile.h = CHK     $@
  31       cmd_compile.h = \
  32         $(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@       \
  33         "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)"    \
  34         "$(CONFIG_PREEMPT_RT)" $(CONFIG_CC_VERSION_TEXT) "$(LD)"
  35
  36 include/generated/compile.h: FORCE
  37         $(call cmd,compile.h)