Hello! Quoting r. Sam Ravnborg ([EMAIL PROTECTED]) "Re: changing local version requires full rebuild":
On Sun, Jan 16, 2005 at 05:22:42PM +0200, Michael S. Tsirkin wrote:
Hi! Is it just me, or does changing the local version always require a full kernel rebuild?
If so, I'd like to fix it, since I like copying
my kernel source with --preserve and changing the
local version, then going back to the old version in case of
a crash.
Its important to change the local version to force make install and make modules_install to put things in a separate
directory.
Just tried it out here. After cp -Ra only a limited part of the kernel rebuilds. o oiu.c in ieee directory - because it dependson the shell script o A number of drivers that include version.h - This should be changed so local version does not affect the reast of version.h. o Other stuff that is always build if kernel has changed
Do you use "echo -mylocalver > localversion" to change the local version?
Sam
Well, we have /usr/src/linux-2.6.10-gold # grep -l UTS_RELEASE -rI . | wc -l 29 grep -l version.h -rI . | fgrep -v .cmd | fgrep -v '.mod' | fgrep -e '.c' -e '.h' | wc -l 354
This means that about 300 files are compiled each time localversion changes, which do not actually use the local version.
So, let us split UTS_RELEASE to a separate header: release.h The following patch over 2.6.10 does that, and fixed the in-tree files that really need to include it. Works for me, and helps me cut down compilation time. Comments?
Most of the stuff using UTS_RELEASE can use system_utsname.release instead (except boot code). Most cases in drivers/ can simply be removed.
--
Brian Gerst
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