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From: Sven Luther <sven.luther@wanadoo.fr>
To: Xavier Leroy <Xavier.Leroy@inria.fr>
Cc: skaller <skaller@users.sourceforge.net>, caml-list@inria.fr
Subject: Re: [Caml-list] PIC
Date: Wed, 28 Dec 2005 10:14:37 +0100	[thread overview]
Message-ID: <20051228091437.GA12864@localhost.localdomain> (raw)
In-Reply-To: <43B1116C.5060407@inria.fr>

On Tue, Dec 27, 2005 at 11:03:24AM +0100, Xavier Leroy wrote:
> The reason it works particularly well for x86 is that dynamic loaders
> for x86 (both under Unix/Linux and Windows) can relocate arbitrary
> code, not necessarily PIC code.  This is unfortunately not the case
> for all target architectures.  In particular, dynamic loaders for
> x86_64 (AMD64) are much less forgiving.  The -fPIC option to ocamlopt
> you mention was added to the AMD64 code generator in an attempt to
> generate "more position-independent" code.  However, it does not quite
> work yet.  A difficulty is the paucity of documentation on what,
> exactly, the Linux AMD64 dynamic loader can relocate.

What is the situation for other architectures, in particular, i would be
interested in the powerpc case.

Friendly,

Sven Luther


  parent reply	other threads:[~2005-12-28  9:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-25  2:07 PIC skaller
2005-12-27 10:03 ` [Caml-list] PIC Xavier Leroy
2005-12-27 12:23   ` skaller
2005-12-28  9:14   ` Sven Luther [this message]
2005-12-31 21:31   ` David Fox
2006-01-01 10:49     ` Ker Lutyn
2006-01-03 23:27       ` Nathaniel Gray
2006-01-04  2:38         ` skaller
2006-01-04  4:54           ` Nathaniel Gray

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