mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 15:54:15 +08:00
9a95015466
scripts/mkcompile_h runs $(CC) just for getting the version string.
Reuse CONFIG_CC_VERSION_TEXT for optimization.
For GCC, this slightly changes the version string. I do not think it
is a big deal as we do not have the defined format for LINUX_COMPILER.
In fact, the recent commit 4dcc9a8844 ("kbuild: mkcompile_h:
Include $LD version in /proc/version") added the linker version.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
39 lines
1.2 KiB
Makefile
39 lines
1.2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# Makefile for the linux kernel.
|
|
#
|
|
|
|
ccflags-y := -fno-function-sections -fno-data-sections
|
|
|
|
obj-y := main.o version.o mounts.o
|
|
ifneq ($(CONFIG_BLK_DEV_INITRD),y)
|
|
obj-y += noinitramfs.o
|
|
else
|
|
obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o
|
|
endif
|
|
obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
|
|
|
|
obj-y += init_task.o
|
|
|
|
mounts-y := do_mounts.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.
|
|
|
|
chk_compile.h = :
|
|
quiet_chk_compile.h = echo ' CHK $@'
|
|
silent_chk_compile.h = :
|
|
include/generated/compile.h: FORCE
|
|
@$($(quiet)chk_compile.h)
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \
|
|
"$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" \
|
|
"$(CONFIG_PREEMPT_RT)" $(CONFIG_CC_VERSION_TEXT) "$(LD)"
|