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From: Christian Hildner <christian.hildner@hob.de>
To: Corey Holcomb-Hockin <crsntlvs@ipeg.com>
Cc: linux-assembly@vger.kernel.org
Subject: Re: C structures and gas
Date: Thu, 28 Nov 2002 07:15:59 +0100	[thread overview]
Message-ID: <3DE5B49F.26B3285F@hob.de> (raw)
In-Reply-To: 3DD04E99.5080704@ipeg.com

Corey Holcomb-Hockin schrieb:

> What is the best way to access C structures with gas assembly?  I
> haven't gotten any good ideas from looking at assembly generated from C
> code.  It looks like it keeps track of offsets and the size of
> structures on its own.  I would have a hard time keeping track of
> offsets and changing them if the structure changed.
>
> Corey Holcomb-Hockin
>

Have a look how linux does this in the ia64 tree. See
/usr/src/linux/arch/ia64/tools/print_offset.c.
There are three steps:

1. compile print_offsets
2. run print_offsets (creates offsets.h)
3. include offsets.h into *.S

Christian


      parent reply	other threads:[~2002-11-28  6:15 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-12  0:43 C structures and gas Corey Holcomb-Hockin
2002-11-12  2:51 ` Scott Lanning
2002-11-12  5:56 ` Randall Hyde
2002-11-28  6:15 ` Christian Hildner [this message]

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