From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8953 invoked by alias); 30 Dec 2005 02:35:07 -0000 Received: (qmail 8937 invoked by uid 22791); 30 Dec 2005 02:35:07 -0000 X-Spam-Check-By: sourceware.org Received: from are.twiddle.net (HELO are.twiddle.net) (64.81.246.98) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 30 Dec 2005 02:35:05 +0000 Received: from are.twiddle.net (localhost.localdomain [127.0.0.1]) by are.twiddle.net (8.12.11/8.12.11) with ESMTP id jBU2Yr21031946; Thu, 29 Dec 2005 18:34:53 -0800 Received: (from rth@localhost) by are.twiddle.net (8.12.11/8.12.11/Submit) id jBU2YnxQ031945; Thu, 29 Dec 2005 18:34:49 -0800 Date: Fri, 30 Dec 2005 02:35:00 -0000 From: Richard Henderson To: Ulrich Drepper Cc: GNU libc hacker Subject: Re: cfi in asm Message-ID: <20051230023449.GB31908@twiddle.net> Mail-Followup-To: Ulrich Drepper , GNU libc hacker References: <43B32E53.7010604@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43B32E53.7010604@redhat.com> User-Agent: Mutt/1.4.1i Mailing-List: contact libc-hacker-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-hacker-owner@sourceware.org X-SW-Source: 2005-12/txt/msg00059.txt.bz2 On Wed, Dec 28, 2005 at 04:31:15PM -0800, Ulrich Drepper wrote: > All archs except x86 and x86-64 are missing cfi in most or all asm > files. cfi is not optional, it's necessary for backtraces. And it > should be equivalent to async unwind tables. Alpha assembler generates trivial cfi from .frame/.mask directives. I only use real cfi for tricky bits. r~