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Date:      30 Nov 1999 14:15:17 +0200
From:      Ville-Pertti Keinonen <will@iki.fi>
To:        current@freebsd.org
Subject:   Re: kernel: -mpreferred-stack-boundary=2 ??
Message-ID:  <86bt8ci3ai.fsf@not.demophon.com>
In-Reply-To: Marcel Moolenaar's message of "30 Nov 1999 13:57:12 %2B0200"
References:  <Pine.BSF.4.10.9911300236160.7938-100000@current1.whistle.com.newsgate.clinet.fi>, <86d7ssi61u.fsf@not.demophon.com> <3843B63D.6A81ABD7@scc.nl.newsgate.clinet.fi>

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> What about commercial and/or third party KLDs? They fail to work if they
> don't also set -preferred-stack-boundry=2, right?

Oops, I accidentally replied to this privately.

Anyhow, I'll repeat it here - stack alignment does *not* break
link-compatibility.  It does not change calling conventions, it just
adds padding after the args to ensure that local variables can be
predictably aligned.


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