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Re: how to hook into shared libraries (by chaining)

From: Christian Parpart
Subject: Re: how to hook into shared libraries (by chaining)
Date: Tue, 13 Feb 2007 16:55:00 +0100
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On Tuesday 13 February 2007 13:33:58 Ralf Wildenhues wrote:
> * Christian Parpart wrote on Tue, Feb 13, 2007 at 11:59:35AM CET:
> > I want to override some functions located in and, in
> > order to capture movies from (any) OpenGL application.
> >
> > There are now several ways to achieve this, but none of them seems to be
> > userfriendly *and* ideal (system/platform independant).
> The question is how portable you want to be.  Only Gentoo?  Only
> GNU/Linux?  Only ELF systems?  Only GNU binutils ld?  Or also, say, w32,
> or AIX non-runtimelinking, or otherwise native non-GNU linker?
> Can we assume the libGL and libX11 all come from
> Is using a wrapper shell script acceptable for you?
> Is patching a binary (a la objcopy) acceptable for you?

Only gentoo would be really self-seeking and result into a quite a little user 
base. But when it comes to the "only" point, I'd be happy with GNU/Linux 
and/or ELF systems only.

I don't wanna blame systems like AIX to use .a instead of .so as shared object 
extensions (iirc), but GNU/Linux is what most desktop end-users (/gamers) are 
using below the roof of UNIX, so better stick with this one.

Thanks you,
Christian Parpart.

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