Date: Mon, 25 Jun 2001 12:16:49 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Peter Pentchev <roam@orbitel.bg> Cc: Terry Lambert <tlambert2@mindspring.com>, Valentin Nechayev <netch@iv.nn.kiev.ua>, hackers@FreeBSD.org Subject: Re: Two Junior Kernel Hacker tasks.. Message-ID: <XFMail.010625121649.jhb@FreeBSD.org> In-Reply-To: <20010624132329.A507@ringworld.oblivion.bg>
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On 24-Jun-01 Peter Pentchev wrote: > On Sat, Jun 23, 2001 at 10:44:51PM -0700, John Baldwin wrote: >> >> On 23-Jun-01 Peter Pentchev wrote: >> > On Sat, Jun 23, 2001 at 12:23:35PM -0700, Terry Lambert wrote: >> >> > make buildkernel is rather easy way to work it around: in >> >> > any case object tree is machine-dependent, and one yet >> >> > another directory does not destroy anything. ;| >> >> >> >> The "make buildkernel" approach sucks for incremental >> >> builds, since you are unable to avoid the "config" run >> >> each time, and a lot of unnecessary stuff gets compiled >> >> again because of opt_*.h files whose contents have not >> >> changed (even if you defeat the clean of the compile >> >> directory). >> > >> > About the release process, you are right, it is a bit harder >> > to restart without some tweaks, but the buildkernel target >> > is about as restartable as it can be. (I really don't think >> > anyone would ever advocate skipping the config(8) or >> > the 'make depend' stage..) >> >> Actually, make depend takes a relatively long time, and when >> I'm hacking on a kernel, I don't want to wait 15 minutes to >> build a kernel after changing one file. I compile kernels >> w/o config or make depend a lot. > > OK, so if you're really really sure your changes do not affect > the dependency graph, use -DNOKERNELDEPEND :) make ; make install is a _lot_ shorter to type than: make -DNOKERNELDEPEND -DDOWHATIWANTDANGIT -DDONTDOTHIS -DDONTDOTHATOTHERTHINGEITHER buildkernel ; make -DDONTINSTALLFOO -DDONTTRYTODOTHIS installkernel And I won't even mention 'make reinstall'... -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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