blob: a3e5ce2bcf08bf2bee9c6139ac61360055dd4949 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +00001# 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-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
21mounts-$(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 $@'
33silent_chk_compile.h = :
34include/generated/compile.h: FORCE
35 @$($(quiet)chk_compile.h)
36 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
37 "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)"