From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/6535 Path: news.gmane.org!not-for-mail From: Szabolcs Nagy Newsgroups: gmane.linux.lib.musl.general,gmane.linux.ports.arm.kernel Subject: Re: ARM atomics overhaul for musl Date: Mon, 17 Nov 2014 15:11:23 +0100 Message-ID: <20141117141123.GG10829@port70.net> References: <20141116055656.GA13940@brightrain.aerifal.cx> <20141116163355.GK4042@n2100.arm.linux.org.uk> <20141116165017.GT22465@brightrain.aerifal.cx> <20141116171055.GM4042@n2100.arm.linux.org.uk> <20141117135412.GC29595@e104818-lin.cambridge.arm.com> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1416233510 890 80.91.229.3 (17 Nov 2014 14:11:50 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 17 Nov 2014 14:11:50 +0000 (UTC) Cc: Russell King - ARM Linux , Rich Felker , "musl@lists.openwall.com" , Kees Cook , "linux-arm-kernel@lists.infradead.org" , Andy Lutomirski To: Catalin Marinas Original-X-From: musl-return-6548-gllmg-musl=m.gmane.org@lists.openwall.com Mon Nov 17 15:11:42 2014 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1XqN1k-000406-D5 for gllmg-musl@m.gmane.org; Mon, 17 Nov 2014 15:11:36 +0100 Original-Received: (qmail 20287 invoked by uid 550); 17 Nov 2014 14:11:35 -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 20279 invoked from network); 17 Nov 2014 14:11:34 -0000 Mail-Followup-To: Catalin Marinas , Russell King - ARM Linux , Rich Felker , "musl@lists.openwall.com" , Kees Cook , "linux-arm-kernel@lists.infradead.org" , Andy Lutomirski Content-Disposition: inline In-Reply-To: <20141117135412.GC29595@e104818-lin.cambridge.arm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Xref: news.gmane.org gmane.linux.lib.musl.general:6535 gmane.linux.ports.arm.kernel:372571 Archived-At: * Catalin Marinas [2014-11-17 13:54:13 +0000]: > ARM11MPCore). ARM is trying to move away from architecture version > numbers, which are rather useful for marketing, to proper feature > detection based on CPUID. Whether there is an ARMv9 or not, it's > irrelevant to what Linux should do (i.e. use CPUID rather than guess > features based on architecture version numbers). > how to use cpuid from userspace? should linux export those bits into hwcap? (i assume all relevant info will be available in /proc/cpuinfo but that does not work for libc)