| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 | obj-y += noinitramfs.o |
| 10 | obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o |
| 11 | obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o |
| 12 | |
| 13 | ifneq ($(CONFIG_ARCH_INIT_TASK),y) |
| 14 | obj-y += init_task.o |
| 15 | endif |
| 16 | |
| 17 | mounts-y := do_mounts.o |
| 18 | mounts-$(CONFIG_BLK_DEV_RAM) += do_mounts_rd.o |
| 19 | mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o |
| 20 | mounts-$(CONFIG_BLK_DEV_MD) += do_mounts_md.o |
| 21 | mounts-$(CONFIG_BLK_DEV_DM) += do_mounts_dm.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 $@' |
| 33 | silent_chk_compile.h = : |
| 34 | include/generated/compile.h: FORCE |
| 35 | @$($(quiet)chk_compile.h) |
| 36 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ |
| 37 | "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)" |