1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for the linux kernel.
6 ccflags-y := -fno-function-sections -fno-data-sections
8 obj-y := main.o version.o mounts.o
9 ifneq ($(CONFIG_BLK_DEV_INITRD),y)
10 obj-y += noinitramfs.o
12 obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o
14 obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
18 mounts-y := do_mounts.o
19 mounts-$(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
23 # dependencies on generated files need to be listed explicitly
24 $(obj)/version.o: include/generated/compile.h
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.
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)" "$(CC) $(KBUILD_CFLAGS)"