linux/init/Makefile
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   1# SPDX-License-Identifier: GPL-2.0
   2#
   3# Makefile for the linux kernel.
   4#
   5
   6ccflags-y := -fno-function-sections -fno-data-sections
   7
   8obj-y                          := main.o version.o mounts.o
   9ifneq ($(CONFIG_BLK_DEV_INITRD),y)
  10obj-y                          += noinitramfs.o
  11else
  12obj-$(CONFIG_BLK_DEV_INITRD)   += initramfs.o
  13endif
  14obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
  15
  16obj-y                          += init_task.o
  17
  18mounts-y                        := do_mounts.o
  19mounts-$(CONFIG_BLK_DEV_RAM)    += do_mounts_rd.o
  20mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
  21
  22# dependencies on generated files need to be listed explicitly
  23$(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
  30quiet_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
  36include/generated/compile.h: FORCE
  37        $(call cmd,compile.h)
  38
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