From: Matthew Wilcox <matthew@wil.cx>
To: linux-ia64@vger.kernel.org
Subject: Re: Question about the segment [[ 60000fff80000000-60000fff80004000 rw-p 0000000000000000 00:00 0 ]]
Date: Thu, 08 Jun 2006 17:48:33 +0000 [thread overview]
Message-ID: <20060608174833.GH1651@parisc-linux.org> (raw)
In-Reply-To: <617E1C2C70743745A92448908E030B2A0EE673@scsmsx411.amr.corp.intel.com>
On Thu, Jun 08, 2006 at 10:51:13PM +0530, vamsi krishna wrote:
> Hell Andreas,
> >You also need to make sure that all function descriptors end up at the
> >very same address.
>
> Do you mean file descriptors?
No. A function descriptor is sometimes called a 'fat pointer'.
Function pointers on ia64 (as with ppc64 and parisc) are not pointers to
the start of the function. Instead they are pointers to function
descriptors -- small structs which contain information about the
function, including a pointer to the start of the function.
http://lists.debian.org/debian-ia64/2003/10/msg00056.html may be of
interest.
next prev parent reply other threads:[~2006-06-08 17:48 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-08 0:09 Question about the segment [[ 60000fff80000000-60000fff80004000 rw-p 0000000000000000 00:00 0 ]] Luck, Tony
2006-06-08 0:14 ` vamsi krishna
2006-06-08 0:29 ` vamsi krishna
2006-06-08 5:57 ` Luck, Tony
2006-06-08 8:19 ` Andreas Schwab
2006-06-08 8:43 ` Jes Sorensen
2006-06-08 9:51 ` vamsi krishna
2006-06-08 17:33 ` vamsi krishna
2006-06-08 17:48 ` Matthew Wilcox [this message]
2006-06-08 20:59 ` vamsi krishna
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