From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/3802 Path: news.gmane.org!not-for-mail From: Andre Renaud Newsgroups: gmane.linux.lib.musl.general Subject: Re: ARM memcpy post-0.9.12-release thread Date: Sat, 3 Aug 2013 10:03:14 +1200 Message-ID: References: <20130731022631.GA6655@brightrain.aerifal.cx> <20130802204146.GO221@brightrain.aerifal.cx> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1375481037 9185 80.91.229.3 (2 Aug 2013 22:03:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 2 Aug 2013 22:03:57 +0000 (UTC) Cc: Andre Renaud To: musl@lists.openwall.com Original-X-From: musl-return-3806-gllmg-musl=m.gmane.org@lists.openwall.com Sat Aug 03 00:03:57 2013 Return-path: Envelope-to: gllmg-musl@plane.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1V5NRx-00016H-Vn for gllmg-musl@plane.gmane.org; Sat, 03 Aug 2013 00:03:54 +0200 Original-Received: (qmail 9307 invoked by uid 550); 2 Aug 2013 22:03:52 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Original-Received: (qmail 8169 invoked from network); 2 Aug 2013 22:03:26 -0000 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:x-gm-message-state; bh=W/mvvGOtADz0yUeZFYNT3HDEJpZH9W2SIl3fKLAgTxA=; b=mpqgkv7UwswTUfdFJQ2jqWEhO18d8Tj1xZz9AeyzV8L/qtHLZ+cWe2dmtvr92Uoey2 ZGZMzmkhEW82cZnRxXnzGyYWn12HmsEafs5T/uqKhvtPbuxECgMx2gIJkkYzq08UB1hJ +ji2aRNhaYK3A5/G7JvWl4VctpwpPcUOOCa1GdhG3Ap8U/Q5S+0YrwpYy021/k8PJ5wm xKHJ6Ww9v+ItAjeFFgnt3m3z4gsgzr3V2hY2d8m1/wWc7/fyCVP86aZpXssMCkdOmmtZ kERFY6+HnrlXKcXBJnr4PGgretzDFsRWvlzAp8TctrEsCzu/qGMWKhf4UIUCX8GeugY1 iaMA== X-Received: by 10.58.54.70 with SMTP id h6mr2703214vep.36.1375480994865; Fri, 02 Aug 2013 15:03:14 -0700 (PDT) In-Reply-To: <20130802204146.GO221@brightrain.aerifal.cx> X-Gm-Message-State: ALoCoQngpmbVoOWlvD+UEvDrBrWwfgoVtUGlwUQFGVvbRzsxZjDjBVATnVPgQ4sMRXMKJHUv7f52 Xref: news.gmane.org gmane.linux.lib.musl.general:3802 Archived-At: Hi Rich, On 3 August 2013 08:41, Rich Felker wrote: > Andre, do you have any input on this? (Cc'ing) > > Rich Sorry, I've been reading the emails, but haven't had a chance to get back to the code. I don't really have an opinion on the gcc memcpy issue, however I was still hopeful that we could come up with a relatively clean mixed C/asm solution for the misaligned/non-congruent copy scenario. Having said that, I haven't done anything on it yet. To be honest, although a solution probably exists, I doubt it's ever going to be much better than the bionic code (with the exception of possibly being less to read). Regards, Andre