Date: Tue, 18 Oct 2005 14:13:51 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Doug Ambrisko <ambrisko@ambrisko.com> Cc: freebsd-emulation@freebsd.org Subject: Re: cross platform building under emulation Message-ID: <20051018181351.GB89074@xor.obsecurity.org> In-Reply-To: <200510150227.j9F2R0Yl081732@ambrisko.com> References: <434EC854.31435.8209C41D@localhost> <200510150227.j9F2R0Yl081732@ambrisko.com>
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[-- Attachment #1 --] On Fri, Oct 14, 2005 at 07:27:00PM -0700, Doug Ambrisko wrote: > Dan Langille writes: > | Daris has got me thinking about unpacking 4.9-release/bin into a > | directory, and then doing a chroot. > > That sort-of works. I've done some setups for companies and get > iteratively better solutions. I copy over some host bins & libs > into special directories so mount, ps etc can be run from inside. > I also have mods to libc so that uname & getosreldate so it can > be set via env. variables so pkg_add, autoconf etc picks up the > right stuff. Now this is a little trickier for old version of > libc that I haven't modified locally yet so I build a stub lib. > of these in the chroot then load this then LD_PRELOAD. If you don't > then some things get messed up. > > This lets me build on a FreeBSD 6.X/amd64 host for FreeBSD 4.X/386, > FreeBSD amd64 etc. I've also at times loaded in the Linux tools and > made that work so I could build Linux bins in chroots. > > I hope to commit my changes to getosreldate(3) and uname(3). > This mirrors the env. variables in /usr/bin/uname. I'd find this very useful too (and will start using your patch), thanks! Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDVTtfWry0BWjoQKURApf/AJ4u39sVY2NT9CQh46gmecgeO8E4OQCfTq+u ylyKdqnvjSjgMGUSAK09ECg= =8TU4 -----END PGP SIGNATURE-----help
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