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Date: Tue, 25 Jan 2011 20:03:24 +0100
From: Stefano Bonifazi <stefboombastic@gmail.com>
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Subject: Re: [Qemu-devel] qemu-user: relocating target code weakness
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To: Richard Henderson <rth@twiddle.net>
Cc: QEMU Developers <qemu-devel@nongnu.org>, Mike Frysinger <vapier.adi@gmail.com>

On 01/25/2011 05:22 PM, Richard Henderson wrote:
> 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~
Hi!
  Strange, I have all the target libs in the default host usr/gnemul 
folder, but your fixed qemu still complained for not finding ld.so.1 
until I fixed the code..
I'll try to check why "path" doesn't work!
Thank you!
Best regards!
Stefano B.