From owner-freebsd-arch@freebsd.org Tue Jul 3 16:41:56 2018 Return-Path: Delivered-To: freebsd-arch@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4FCC010302E8 for ; Tue, 3 Jul 2018 16:41:56 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E55238B07D for ; Tue, 3 Jul 2018 16:41:55 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: by mailman.ysv.freebsd.org (Postfix) id A68FC10302E4; Tue, 3 Jul 2018 16:41:55 +0000 (UTC) Delivered-To: arch@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 951E610302E3 for ; Tue, 3 Jul 2018 16:41:55 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0807A8B05F; Tue, 3 Jul 2018 16:41:51 +0000 (UTC) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: from pdx.rh.CN85.dnsmgr.net (localhost [127.0.0.1]) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3) with ESMTP id w63GfjMB039022; Tue, 3 Jul 2018 09:41:45 -0700 (PDT) (envelope-from freebsd-rwg@pdx.rh.CN85.dnsmgr.net) Received: (from freebsd-rwg@localhost) by pdx.rh.CN85.dnsmgr.net (8.13.3/8.13.3/Submit) id w63GfiIp039021; Tue, 3 Jul 2018 09:41:44 -0700 (PDT) (envelope-from freebsd-rwg) From: "Rodney W. Grimes" Message-Id: <201807031641.w63GfiIp039021@pdx.rh.CN85.dnsmgr.net> Subject: Re: xstr, mkstr In-Reply-To: To: John Baldwin Date: Tue, 3 Jul 2018 09:41:44 -0700 (PDT) CC: Warner Losh , Eitan Adler , "freebsd-arch@freebsd.org" X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jul 2018 16:41:56 -0000 [ Charset UTF-8 unsupported, converting... ] > On 7/3/18 8:26 AM, Warner Losh wrote: > >> "As far as I can tell" needs to be a bit stronger, > >> > >> Agreed. But before doing work we should first make sure that the work > >> will be productive. > >> > > > > Xstr and most are best thought of as a final pass of the old pcc compiler. > > This functionality moved into gcc before the egcs split back in the 90s. > > The compiler has done this work for two decades now. Nobody uses it, or > > needs it today. > > > > Unlike tip or cu, nobody at all uses these. > > Agreed, these tools are quite obscure and I don't think _FreeBSD_ has ever > used them. I thought someone already pointed out places in the src tree that had references to them, though they may be commented out. -- Rod Grimes rgrimes@freebsd.org