Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
kbuild: introduce utsrelease.h
include/linux/version.h contained both actual KERNEL version
and UTS_RELEASE that contains a subset from git SHA1 for when
kernel was compiled as part of a git repository.
This had the unfortunate side-effect that all files including version.h
would be recompiled when some git changes was made due to changes SHA1.
Split it out so we keep independent parts in separate files.
Also update checkversion.pl script to no longer check for UTS_RELEASE.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
+19
-13
Makefile
+19
-13
Makefile
···
812
# prepare2 creates a makefile if using a separate output directory
813
prepare2: prepare3 outputmakefile
814
815
-
prepare1: prepare2 include/linux/version.h include/asm \
816
-
include/config/auto.conf
817
ifneq ($(KBUILD_MODULES),)
818
$(Q)mkdir -p $(MODVERDIR)
819
$(Q)rm -f $(MODVERDIR)/*
···
848
# needs to be updated, so this check is forced on all builds
849
850
uts_len := 64
851
-
852
-
define filechk_version.h
853
if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
854
-
echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
855
-
exit 1; \
856
-
fi; \
857
-
(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\"; \
858
-
echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)`; \
859
-
echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))'; \
860
-
)
861
endef
862
863
-
include/linux/version.h: $(srctree)/Makefile include/config/kernel.release FORCE
864
$(call filechk,version.h)
865
866
# ---------------------------------------------------------------------------
867
···
960
# Directories & files removed with 'make mrproper'
961
MRPROPER_DIRS += include/config include2
962
MRPROPER_FILES += .config .config.old include/asm .version .old_version \
963
-
include/linux/autoconf.h include/linux/version.h \
964
Module.symvers tags TAGS cscope*
965
966
# clean - Delete most, but leave enough to build external modules
···
812
# prepare2 creates a makefile if using a separate output directory
813
prepare2: prepare3 outputmakefile
814
815
+
prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
816
+
include/asm include/config/auto.conf
817
ifneq ($(KBUILD_MODULES),)
818
$(Q)mkdir -p $(MODVERDIR)
819
$(Q)rm -f $(MODVERDIR)/*
···
848
# needs to be updated, so this check is forced on all builds
849
850
uts_len := 64
851
+
define filechk_utsrelease.h
852
if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
853
+
echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
854
+
exit 1; \
855
+
fi; \
856
+
(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
857
endef
858
859
+
define filechk_version.h
860
+
(echo \#define LINUX_VERSION_CODE $(shell \
861
+
expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \
862
+
echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
863
+
endef
864
+
865
+
include/linux/version.h: $(srctree)/Makefile FORCE
866
$(call filechk,version.h)
867
+
868
+
include/linux/utsrelease.h: include/config/kernel.release FORCE
869
+
$(call filechk,utsrelease.h)
870
871
# ---------------------------------------------------------------------------
872
···
955
# Directories & files removed with 'make mrproper'
956
MRPROPER_DIRS += include/config include2
957
MRPROPER_FILES += .config .config.old include/asm .version .old_version \
958
+
include/linux/autoconf.h include/linux/version.h \
959
+
include/linux/utsrelease.h \
960
Module.symvers tags TAGS cscope*
961
962
# clean - Delete most, but leave enough to build external modules
+1
-1
arch/alpha/boot/bootp.c
+1
-1
arch/alpha/boot/bootp.c
+1
-1
arch/alpha/boot/bootpz.c
+1
-1
arch/alpha/boot/bootpz.c
+1
-1
arch/alpha/boot/main.c
+1
-1
arch/alpha/boot/main.c
+1
-1
arch/frv/kernel/setup.c
+1
-1
arch/frv/kernel/setup.c
+1
-1
arch/i386/boot/setup.S
+1
-1
arch/i386/boot/setup.S
+1
-1
arch/powerpc/platforms/chrp/setup.c
+1
-1
arch/powerpc/platforms/chrp/setup.c
+1
-1
arch/powerpc/platforms/powermac/bootx_init.c
+1
-1
arch/powerpc/platforms/powermac/bootx_init.c
+1
-1
arch/ppc/syslib/btext.c
+1
-1
arch/ppc/syslib/btext.c
+1
-1
arch/x86_64/boot/setup.S
+1
-1
arch/x86_64/boot/setup.S
+1
-1
drivers/net/wireless/bcm43xx/bcm43xx_ethtool.c
+1
-1
drivers/net/wireless/bcm43xx/bcm43xx_ethtool.c
+1
-1
include/linux/vermagic.h
+1
-1
include/linux/vermagic.h
+1
init/version.c
+1
init/version.c
+3
-4
scripts/checkversion.pl
+3
-4
scripts/checkversion.pl
···
1
#! /usr/bin/perl
2
#
3
-
# checkversion find uses of LINUX_VERSION_CODE, KERNEL_VERSION, or
4
-
# UTS_RELEASE without including <linux/version.h>, or cases of
5
# including <linux/version.h> that don't need it.
6
# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
7
···
41
}
42
43
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
44
-
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) ||
45
-
($_ =~ /UTS_RELEASE/)) {
46
$fUseVersion = 1;
47
last LINE if $iLinuxVersion;
48
}
···
1
#! /usr/bin/perl
2
#
3
+
# checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
4
+
# without including <linux/version.h>, or cases of
5
# including <linux/version.h> that don't need it.
6
# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
7
···
41
}
42
43
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
44
+
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {
45
$fUseVersion = 1;
46
last LINE if $iLinuxVersion;
47
}