Date: Fri, 25 Aug 2006 08:40:24 GMT From: Divacky Roman <xdivac02@stud.fit.vutbr.cz> To: freebsd-emulation@FreeBSD.org Subject: Re: ports/102474: linux_base-fc-4_8 appears broken, does not allow to run Linux binaries Message-ID: <200608250840.k7P8eOAC078349@freefall.freebsd.org>
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The following reply was made to PR ports/102474; it has been noted by GNATS.
From: Divacky Roman <xdivac02@stud.fit.vutbr.cz>
To: Alexander Leidinger <Alexander@Leidinger.net>
Cc: Boris Samorodov <bsam@ipt.ru>, freebsd-emulation@freebsd.org,
freebsd-gnats-submit@freebsd.org,
Markus Hoenicka <markus.hoenicka@mhoenicka.de>, cejkar@fit.vutbr.cz
Subject: Re: ports/102474: linux_base-fc-4_8 appears broken, does not allow to run Linux binaries
Date: Fri, 25 Aug 2006 10:36:28 +0200
On Fri, Aug 25, 2006 at 08:23:20AM +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
> does contain "#!" as the first two characters of the file (I can't
> check ATM), then there's something wrong here.
>
> 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.
it might be unrelated but I have reports that libmaping doesnt work
in this case when you have the same named library. the problem is in
system linker. dont remember details
I CC: cejkar@fit.vutbr.cz who reported me this problem.
roman
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