Date: Fri, 25 Aug 2006 14:23:47 +0400 From: Boris Samorodov <bsam@ipt.ru> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: freebsd-emulation@freebsd.org, freebsd-gnats-submit@freebsd.org, Markus Hoenicka <markus.hoenicka@mhoenicka.de> Subject: Re: ports/102474: linux_base-fc-4_8 appears broken, does not allow to run Linux binaries Message-ID: <69933964@bsam.ru> In-Reply-To: <20060825082320.ygobmy4doo0sowsg@netchild.homeip.net> (Alexander Leidinger's message of "Fri, 25 Aug 2006 08:23:20 %2B0200") References: <E1GGL6p-0000Bd-2Z@bsam.ru> <17646.3029.176290.711490@yeti.mininet> <80657181@bsam.ru> <17646.6613.28038.72832@yeti.mininet> <14575472@bsam.ru> <17646.7832.330245.660064@yeti.mininet> <48492411@bsam.ru> <20060825082320.ygobmy4doo0sowsg@netchild.homeip.net>
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On Fri, 25 Aug 2006 08:23:20 +0200 Alexander Leidinger wrote: > Quoting Boris Samorodov <bsam@ipt.ru> (from Fri, 25 Aug 2006 02:28:36 +0400): > > On Thu, 24 Aug 2006 23:48:08 +0200 Markus Hoenicka wrote: > >> Boris Samorodov writes: > > > >> > Can you give me a link to ktrace.out for > >> > "ktrace -i /compat/linux/usr/bin/ldd /compat/linux/sbin/ldconfig"? > > > >> Yes, please have a look at: > > > >> http://refdb.sourceforge.net/stuff/ldd/ktrace.out > > > > Aha, /compat/linux/usr/bin/ldd is a script. Can't say for sure should > > it work or not but something strange does exist: > > ----- > > 24546 ktrace RET ktrace 0 > > 24546 ktrace CALL execve(0xbfbfe85e,0xbfbfe75c,0xbfbfe768) > > 24546 ktrace NAMI "/compat/linux/usr/bin/ldd" > > 24546 ktrace NAMI "/bin/sh" > > 24546 ktrace NAMI "/libexec/ld-elf.so.1" > > 24546 sh RET execve 0 > > ----- > > > > Alexander, can you comment on this behaviour? Thanks! > The kernel contains code to detect if a linux program is a script and > contains "#!" at the beginning. If it detects this, it tries to start > the linux version of the interpreter. At least it should do that. If > the above isn't a cut-down version of the ktrace, and if the linux ldd It is a cut-down version of ktrace. I expected that a linux shell should be execed, but not a native one. And later this shell is trying to find /lib/ld-linux.so.2 and boils out! > does contain "#!" as the first two characters of the file (I can't > check ATM), then there's something wrong here. Yep: ----- # uname -a FreeBSD bsam.ru 6.1-STABLE FreeBSD 6.1-STABLE #0: Sat Aug 19 00:13:01 MSD 2006 bsam@bsam.ru:/usr/obj/usr/src/sys/GENERIC i386 # head -1 /compat/linux/usr/bin/ldd #! /bin/sh ----- > Regarding the lib problem in the PR: FreeBSD 6.x and fc4 contain a > libc.so.6. So the order of the ld path (/compat/linux/etc/ld.so.conf > or how it is spelled) may matter. I don't have a 6.x system to test > this, so someone has to play around with it and report here (don't > forget to rerun the linux ldconfig with the '-R /compat/linux' option > after each change). If this doesn't solve the problem, I need to see > the complete ktrace of a failing program which tries to link with > libc.so.6. The lib problem is already fixed (non-standard file /usr/lib/libc.so.6 existed at the submitter's machine). Thanks for your help. WBR -- Boris Samorodov (bsam) Research Engineer, http://www.ipt.ru Telephone & Internet SP FreeBSD committer, http://www.FreeBSD.org The Power To Serve
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