From: Cary Coutant <cary@cup.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Unwind problem for __attribute__ noreturn
Date: Wed, 21 Mar 2001 19:26:14 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005322@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005303@msgid-missing>
> Cary> 1. Emit a bundle of nops following the call. I understand that
> Cary> this is at odds with the goal of being able to describe
> Cary> fully-optimized code, but it seems like a rare enough case and
> Cary> a small enough penalty that we could live with it.
>
>OK. But I'd rather see the compiler emit a "break 0" instead of a
>"nop 0". With the former, when a noreturn function unexpectedly
>returns, it will a generate a SIGILL signal with code ILL_ILLOPC
>(illegal opcode) instead of silently executing wrong code.
Yes, that's a good idea.
-cary
next prev parent reply other threads:[~2001-03-21 19:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-20 2:10 [Linux-ia64] Unwind problem for __attribute__ noreturn Keith Owens
2001-03-21 0:24 ` Jim Wilson
2001-03-21 6:03 ` Keith Owens
2001-03-21 6:53 ` David Mosberger
2001-03-21 7:12 ` Jim Wilson
2001-03-21 7:54 ` David Mosberger
2001-03-21 8:54 ` Keith Owens
2001-03-21 17:54 ` David Mosberger
2001-03-21 18:48 ` Cary Coutant
2001-03-21 19:07 ` Jim Wilson
2001-03-21 19:13 ` David Mosberger
2001-03-21 19:13 ` Jim Wilson
2001-03-21 19:26 ` Cary Coutant [this message]
2001-03-21 19:40 ` Jim Wilson
2001-03-21 19:58 ` David Mosberger
2001-03-21 20:00 ` Jim Wilson
2001-03-21 20:38 ` Jim Wilson
2001-03-21 22:54 ` David Mosberger
2001-03-21 23:42 ` Cary Coutant
2001-03-22 17:00 ` Rich Altmaier
2001-03-23 20:28 ` Jim Wilson
2001-03-24 0:58 ` Cary Coutant
2001-03-24 1:27 ` Keith Owens
2001-03-24 1:37 ` Jim Wilson
2001-03-26 22:06 ` DE-DINECHIN,CHRISTOPHE (HP-Cupertino,ex1)
2001-03-26 22:58 ` Cary Coutant
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