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Mail Archives: djgpp/2000/03/07/16:11:04

From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: 8 bytes alignment
Date: Tue, 07 Mar 2000 19:07:38 +0200
Organization: NetVision Israel
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Pavel Semjanov wrote:
> 
>  I'm trying to write MMX-code and need to use 8-bytes aligned data.
> I didn't find any suitable gcc option

Hmm?  Doesn't -malign-double and -mpreferred-stack-boundary work for you?

> and when I'm using
> __attribute__ ((aligned (8)) gcc gives me the warning:
> "aaa.c:64: warning: alignment of `pwarray' is greater than maximum
> object file alignment. Using 4."
> 
> Sure I'm using latest DJGPP, gcc and binutils.

Only Binutils 2.9.5.1, the latest port uploaded a couple of days ago,
supports alignment of sections that is greater than 4 bytes.  All the
previous DJGPP ports of Binutils used a 4-byte section and subsection
alignment.

Are you sure you have Binutils 2.9.5.1?  What does "as --version" print?

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