From owner-freebsd-toolchain@freebsd.org Fri Jan 5 06:11:11 2018 Return-Path: Delivered-To: freebsd-toolchain@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8664FEB583C for ; Fri, 5 Jan 2018 06:11:11 +0000 (UTC) (envelope-from jbeich@freebsd.org) 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 73FE878003 for ; Fri, 5 Jan 2018 06:11:11 +0000 (UTC) (envelope-from jbeich@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 6BE1BEB583B; Fri, 5 Jan 2018 06:11:11 +0000 (UTC) Delivered-To: toolchain@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6B8A0EB5839 for ; Fri, 5 Jan 2018 06:11:11 +0000 (UTC) (envelope-from jbeich@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4D23A78001; Fri, 5 Jan 2018 06:11:11 +0000 (UTC) (envelope-from jbeich@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 1354) id 81778E4D9; Fri, 5 Jan 2018 06:11:10 +0000 (UTC) From: Jan Beich To: toolchain@freebsd.org Cc: linimon@freebsd.org Subject: Re: Is -march/-mtune=native actually supported on FreeBSD arm* or aarch64? References: Date: Fri, 05 Jan 2018 07:11:05 +0100 In-Reply-To: (Jan Beich's message of "Fri, 05 Jan 2018 06:52:08 +0100") Message-ID: MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: freebsd-toolchain@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Maintenance of FreeBSD's integrated toolchain List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jan 2018 06:11:11 -0000 Jan Beich writes: > Some ports pass -march=native and/or -mtune=native. Both are extensively > documented by GCC for x86. For other architectures some excerpts say > "native" is only supported on Linux (via /proc/cpuinfo). For example, Oops, found a partial answer: https://lists.freebsd.org/pipermail/freebsd-arm/2016-February/013190.html