svn commit: r341344 - head/share/man/man7

[Edward Napierala]

pt., 30 lis 2018 o 17:47 John Baldwin <jhb at freebsd.org> napisał(a):
>
> On 11/30/18 9:37 AM, Ian Lepore wrote:
> > On Fri, 2018-11-30 at 16:01 +0000, Edward Tomasz Napierala wrote:
> >> Author: trasz
> >> Date: Fri Nov 30 16:01:43 2018
> >> New Revision: 341344
> >> URL: https://svnweb.freebsd.org/changeset/base/341344
> >>
> >> Log:
> >>   Add an example of quick kernel rebuild.
> >>
> >>   MFC after: 2 weeks
> >>   Sponsored by:      DARPA, AFRL
> >>
> >> Modified:
> >>   head/share/man/man7/development.7
> >>
> >> Modified: head/share/man/man7/development.7
> >> =====================================================================
> >> =========
> >> --- head/share/man/man7/development.7        Fri Nov 30 15:56:14 2018
> >>      (r341343)
> >> +++ head/share/man/man7/development.7        Fri Nov 30 16:01:43 2018
> >>      (r341344)
> >> @@ -127,6 +127,14 @@ case
> >>  cd src/bin/ls
> >>  make clean all install
> >>  .Ed
> >> +.Pp
> >> +Quickly rebuild and reinstall the kernel, only recompiling the files
> >> +changed since last build; note that this will only work if the full
> >> kernel
> >> +build has been completed in the past, not on a fresh source tree:
> >> +.Bd -literal -offset indent
> >> +cd src
> >> +make -j8 kernel KERNFAST=1
> >
> > It might also be worth mentioning that if you're building a kernel
> > other than GENERIC, you can use KERNFAST=configname instead of
> > KERNFAST=1 KERNCONF=configname
>
> You could perhaps just use 'KERNFAST=GENERIC' in this example and it would
> effectively communicate that I think.

We could, but this complicates things.  As it is now, it just doesn't
mention (nor affect) the kernel config name at all, instead using KERNFAST
as a binary flag.  Also, trying to actually set the kernel name using KERNFAST
would probably result in failed build, since for KERNFAST to work, you need
to have previously completed a non-KERNFAST build with that config name.