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-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
  15
  16 ifneq ($(CONFIG_ARCH_INIT_TASK),y)
  17 obj-y                          += init_task.o
  18 endif
  19
  20 mounts-y                        := do_mounts.o
  21 mounts-$(CONFIG_BLK_DEV_RAM)    += do_mounts_rd.o
  22 mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
  23 mounts-$(CONFIG_BLK_DEV_MD)     += do_mounts_md.o
  24
  25 # dependencies on generated files need to be listed explicitly
  26 $(obj)/version.o: include/generated/compile.h
  27
  28 # compile.h changes depending on hostname, generation number, etc,
  29 # so we regenerate it always.
  30 # mkcompile_h will make sure to only update the
  31 # actual file if its content has changed.
  32
  33        chk_compile.h = :
  34  quiet_chk_compile.h = echo '  CHK     $@'
  35 silent_chk_compile.h = :
  36 include/generated/compile.h: FORCE
  37         @$($(quiet)chk_compile.h)
  38         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
  39         "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)"