Date: Sat, 10 May 2008 13:50:32 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-chat@FreeBSD.ORG, davids@webmaster.com Subject: Re: Building 32-bit binaries on 64-bit 6.3 Message-ID: <200805101150.m4ABoWtA018343@lurza.secnetix.de> In-Reply-To: <MDEHLPKNGKAHNMBLJOLKEELOMIAC.davids@webmaster.com>
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David Schwartz wrote: > I've been looking for a way to build 32-bit x86 binaries on an AMD64 > install of FreeBSD 6.3 STABLE. Doing it within a 32bit chroot (or jail) is probably the easiest way. At least it was for me. I simply took a 32bit install from an FTP mirror, installed it into /usr/i386, mounted devfs inside it (and mdfs on tmp), then chrooted into it, and everything worked as expected. Of course, if you have a 32bit world on some other box, you can simply make a copy of it for your chroot. Of course, be sure that your amd64 kernel contains the line "options COMPAT_IA32" (it's in GENERIC by default), so the i386 binary compatibility is enabled. You also have to make a link inside the chroot's /libexec: # cd libexec # ln ld-elf.so.1 ld-elf32.so.1 And finally, certain Makefiles (including our buildworld target) will be confused and think that you're attempting to cross-compile. In order to trick them into assuming that you're running on a 32bit kernel, you have to set these environment variables before: # export UNAME_m=i386 # export UNAME_p=i386 If you're using csh or tcsh, use this syntax instead: % setenv UNAME_m i386 % setenv UNAME_p i386 With the above settings, I was able to perform a full buildworld + installworld within a 32bit chroot on a 64bit host. The result was still a 32bit world, of course. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "If Java had true garbage collection, most programs would delete themselves upon execution." -- Robert Sewell
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