Date: Sat, 14 Dec 2002 20:25:42 -0500 From: "Brian F. Feldman" <green@FreeBSD.org> To: Peter Wemm <peter@wemm.org> Cc: Poul-Henning Kamp <phk@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/boot/i386/boot2 Makefile boot1.s Message-ID: <200212150125.gBF1Pgmi014338@green.bikeshed.org> In-Reply-To: Your message of "Sat, 14 Dec 2002 16:52:15 PST." <20021215005215.2476D2A7EA@canning.wemm.org>
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Peter Wemm <peter@wemm.org> wrote: > Poul-Henning Kamp wrote: > > Modified files: > > sys/boot/i386/boot2 Makefile boot1.s > > Log: > > Employ the unused bytes after the disklabel in the second sector. This mak > es > > it possible to make UFS1_ONLY and UFS2_ONLY versions which fit inside the > > traditional 16 sectors. > > > > UFS1_AND_UFS2 still needs another 150 bytes to work, and that is probably > > not within our reach, ever. > > That sounds like a challenge! :-) > http://people.freebsd.org/~peter/boot2.diff > > That is a WIP and COMPLETELY UNTESTED patch to turn on UFS1_AND_UFS2 > and it ends up with 7 bytes free. I wouldn't install this on anything > but a spare floppy disk yet. > > I have a couple of nastier versions that have ~30+ bytes free but > I'm pretty sure I broke the pathname lookups there. And for that matter, > I'm not even sure if -fomit-frame-pointer is compatable with -mrtd... If > not, oh well. :-) I don't think it's worth bothering trying to get it smaller, since the UFS2 partitions have enough space for up to 64KB of boot code anyway. -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org <> bfeldman@tislabs.com \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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