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Re: [patch] Prevent dead code/data removal with gcc 3.4

To: Ralf Baechle <>
Subject: Re: [patch] Prevent dead code/data removal with gcc 3.4
From: Thiemo Seufer <>
Date: Fri, 13 Feb 2004 23:22:53 +0100
Cc: "Maciej W. Rozycki" <>,
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
User-agent: Mutt/
Ralf Baechle wrote:
> On Fri, Feb 13, 2004 at 03:20:27PM +0100, Maciej W. Rozycki wrote:
> > 2. It changes inline-assembly function prologues to be embedded within the
> > functions, which makes them a bit safer as they can now explicitly refer
> > to the "regs" struct and assures the code won't be removed or reordered.
> It is possible that gcc changes one of the registers before save_static
> and I can't imagine there's a reliable way to fix this in the inline
> version.

As long as __asm__ __volatile__ works as documented, this can't happen.


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