From: Richard Henderson <rth@twiddle.net>
To: Stefano Bonifazi <stefboombastic@gmail.com>
Cc: QEMU Developers <qemu-devel@nongnu.org>,
Mike Frysinger <vapier.adi@gmail.com>
Subject: Re: [Qemu-devel] qemu-user: relocating target code weakness
Date: Tue, 25 Jan 2011 08:22:25 -0800 [thread overview]
Message-ID: <4D3EF8C1.8010507@twiddle.net> (raw)
In-Reply-To: <4D3EAA40.30300@gmail.com>
On 01/25/2011 02:47 AM, Stefano Bonifazi wrote:
> You keep getting the name of the dynamic linker from the PT_INTERP program segment, but that gives you the absolute position of the dynamic linker inside the machine the target binary was created in.
> Here qemu-user is an emultaor used for running that binary into another machine..
> Qemu default to usr/gnemul/ the path where the libs for the target machines are stored...
> So we need to patch the absolute dynamic linker name with the proper path..
In load_elf_interp,
fd = open(path(filename), O_RDONLY);
Notice the path function call. That does the translation into gnemul, given
the proper configure option, or -L command-line option.
r~
next prev parent reply other threads:[~2011-01-25 16:22 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-24 11:34 [Qemu-devel] qemu-user: relocating target code weakness Stefano Bonifazi
2011-01-24 16:29 ` Mulyadi Santosa
2011-01-24 18:16 ` Stefano Bonifazi
2011-01-24 20:00 ` Mike Frysinger
2011-01-24 20:58 ` Stefano Bonifazi
2011-01-24 21:21 ` Mike Frysinger
2011-01-24 21:52 ` Stefano Bonifazi
2011-01-24 22:11 ` Mike Frysinger
2011-01-24 22:24 ` Stefano Bonifazi
2011-01-24 22:34 ` Mike Frysinger
2011-01-25 0:06 ` Mike Frysinger
2011-01-25 0:18 ` Mike Frysinger
2011-01-25 8:49 ` Stefano Bonifazi
2011-01-25 8:26 ` Stefano Bonifazi
2011-01-24 19:46 ` Richard Henderson
2011-01-24 21:44 ` Stefano Bonifazi
2011-01-24 23:32 ` Mike Frysinger
2011-01-25 8:25 ` Stefano Bonifazi
2011-01-25 1:36 ` Richard Henderson
2011-01-25 8:47 ` Stefano Bonifazi
2011-01-25 8:53 ` Mike Frysinger
2011-01-25 9:58 ` Stefano Bonifazi
2011-01-25 10:47 ` Stefano Bonifazi
2011-01-25 16:22 ` Richard Henderson [this message]
2011-01-25 19:03 ` Stefano Bonifazi
2011-01-25 11:06 ` Stefano Bonifazi
2011-01-25 16:26 ` Richard Henderson
2011-01-25 19:49 ` Stefano Bonifazi
2011-01-25 20:53 ` Lluís
2011-01-26 11:07 ` Stefano Bonifazi
2011-01-26 15:38 ` Richard Henderson
2011-01-26 17:44 ` Stefano Bonifazi
2011-01-26 20:17 ` Lluís
2011-01-26 20:19 ` Richard Henderson
2011-01-26 20:33 ` Stefano Bonifazi
2011-01-26 20:36 ` Lluís
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