| # SPDX-License-Identifier: GPL-2.0 |
| # Makefile for the linux kernel. |
| ccflags-y := -fno-function-sections -fno-data-sections |
| obj-y := main.o version.o mounts.o |
| ifneq ($(CONFIG_BLK_DEV_INITRD),y) |
| obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o |
| obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o |
| mounts-$(CONFIG_BLK_DEV_RAM) += do_mounts_rd.o |
| mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o |
| mounts-$(CONFIG_BLK_DEV_MD) += do_mounts_md.o |
| # dependencies on generated files need to be listed explicitly |
| $(obj)/version.o: include/generated/compile.h |
| # compile.h changes depending on hostname, generation number, etc, |
| # so we regenerate it always. |
| # mkcompile_h will make sure to only update the |
| # actual file if its content has changed. |
| quiet_chk_compile.h = echo ' CHK $@' |
| include/generated/compile.h: FORCE |
| @$($(quiet)chk_compile.h) |
| $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ |
| "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" \ |
| "$(CONFIG_PREEMPT_RT)" "$(CC) $(KBUILD_CFLAGS)" |