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Message-ID: <CAJAsdNhyQSStdVxgJYM_skCQC8cmju+J7-4c62-_VP2b_kQ99w@mail.gmail.com>
Date: Tue, 21 May 2013 14:46:17 +0200
From: Dániel Bali <balijanosdaniel@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: AMD GCN ISA development
Hello!
2013/5/21 Sayantan Datta <std2048@...il.com>
>
>
> Also you can't just modify the text section unless it has the exact same
> size as before. If the size is different you also need to update the symtab
> section.
Oh, I thought objcopy would take care of this. This is why I wanted to
avoid simply hex-editing the elf, because I didn't know what headers and
tables I would need to modify.
> All the necessary details are in the attached pdf.
Thanks for this!
> Since AMD elf objects are elf within elf , you might also need to modify
> the inner elf.
Yes, I extracted the inner elf and that's what I'm trying to patch
currently.
> You can also check my AMD-IL page if you need an example for libelf.
>
I will, thanks! I'll look into it this evening and give an update once I
managed to patch the elfs (elves?).
Regards,
Daniel
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