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-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
  21 mounts-$(CONFIG_BLK_DEV_MD)     += do_mounts_md.o
  22
  23 # dependencies on generated files need to be listed explicitly
  24 $(obj)/version.o: include/generated/compile.h
  25
  26 # compile.h changes depending on hostname, generation number, etc,
  27 # so we regenerate it always.
  28 # mkcompile_h will make sure to only update the
  29 # actual file if its content has changed.
  30
  31        chk_compile.h = :
  32  quiet_chk_compile.h = echo '  CHK     $@'
  33 silent_chk_compile.h = :
  34 include/generated/compile.h: FORCE
  35         @$($(quiet)chk_compile.h)
  36         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@   \
  37         "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)"    \
  38         "$(CONFIG_PREEMPT_RT)" "$(CC) $(KBUILD_CFLAGS)"