From owner-freebsd-hackers  Sat Jun  2  4:31:54 2001
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Date: Sat, 2 Jun 2001 04:31:45 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Peter Pentchev <roam@orbitel.bg>
Cc: Alfred Perlstein <bright@rush.net>,
	Jiangyi Liu <gzjyliu@public.guangzhou.gd.cn>,
	freebsd-hackers@FreeBSD.ORG
Subject: Re: How to recompile kernel after minor changes?
Message-ID: <20010602043145.B97130@xor.obsecurity.org>
References: <878zjb20fd.fsf@fatcow.home> <20010601210728.A1832@superconductor.rush.net> <20010602115823.D24747@ringworld.oblivion.bg>
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In-Reply-To: <20010602115823.D24747@ringworld.oblivion.bg>; from roam@orbitel.bg on Sat, Jun 02, 2001 at 11:58:23AM +0300
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On Sat, Jun 02, 2001 at 11:58:23AM +0300, Peter Pentchev wrote:
> On Fri, Jun 01, 2001 at 09:07:28PM -0400, Alfred Perlstein wrote:
> > * Jiangyi Liu <gzjyliu@public.guangzhou.gd.cn> [010601 20:25] wrote:
> > > Hi all,
> > >=20
> > > After just changing a little in sys/kern/kern_sig.c, how can I rebuild
> > > the kernel fast? I think it should not take such a long time as 'make
> > > buildkernel' does. Anyway, just kern_sig.c need to be recompiled and
> > > the kernel can be linked. So how do you guys do in such case?
> >=20
> > try:
> > make buildkernel -DNOCLEAN
>=20
> And if you've really only changed kern_sig.c, add -DMODULES_WITH_WORLD, t=
oo.
> This will cut down the kernel compile time to the dependencies' and set
> generation (which cannot be avoided in any sane build), and then compiling
> only 4-5 files.

or -DNO_MODULES, as it's usually spelled when only doing a kernel compile :=
-)

Kris

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