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_BUILD)"	\
34	"$(CONFIG_PREEMPT_RT)" $(CONFIG_CC_VERSION_TEXT) "$(LD)"
35
36include/generated/compile.h: FORCE
37	$(call cmd,compile.h)
38