From owner-freebsd-toolchain@freebsd.org Fri Jan 6 09:10:53 2017 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 B59A6B88DF7 for ; Fri, 6 Jan 2017 09:10:53 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-210-14.reflexion.net [208.70.210.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 659941066 for ; Fri, 6 Jan 2017 09:10:52 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 7801 invoked from network); 6 Jan 2017 09:04:33 -0000 Received: from unknown (HELO mail-cs-01.app.dca.reflexion.local) (10.81.19.1) by 0 (rfx-qmail) with SMTP; 6 Jan 2017 09:04:33 -0000 Received: by mail-cs-01.app.dca.reflexion.local (Reflexion email security v8.20.0) with SMTP; Fri, 06 Jan 2017 04:04:26 -0500 (EST) Received: (qmail 18080 invoked from network); 6 Jan 2017 09:04:26 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (AES256-SHA encrypted) SMTP; 6 Jan 2017 09:04:26 -0000 Received: from [192.168.1.111] (c-67-170-167-181.hsd1.or.comcast.net [67.170.167.181]) by iron2.pdx.net (Postfix) with ESMTPSA id E653AEC913D; Fri, 6 Jan 2017 01:04:10 -0800 (PST) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 10.2 \(3259\)) Subject: Bug 215821 for TARGET_ARCH=powerpc64: bootstrapped ld produces a "shared object" when given a -pie option; junk kernel produced crashes Message-Id: <496BD75E-3D29-4717-BDE8-9AAFCA27FD0C@dsl-only.net> Date: Fri, 6 Jan 2017 01:04:10 -0800 To: FreeBSD Toolchain , FreeBSD PowerPC ML X-Mailer: Apple Mail (2.3259) X-BeenThere: freebsd-toolchain@freebsd.org X-Mailman-Version: 2.1.23 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, 06 Jan 2017 09:10:53 -0000 I have submitted a FreeBSD bugzilla entry: Bug 215821 - head -r311147's bootstrapped ld for TARGET_ARCH=3Dpowerpc64 = produces kernel.full as a "shared object" for -pie instead of as a = "executable": booting the produced kernel crashes In essence what the .meta file for kernel.full shows as: CMD @ld -Bdynamic -T /usr/src/sys/conf/ldscript.powerpc64 -pie = --no-warn-mismatch --warn-common --export-dynamic --dynamic-linker = /red/herring -o kernel.full -X locore.o . . . (note the -pie) ends up producing: ELF 64-bit MSB shared object, 64-bit PowerPC or cisco 7500, version 1 = (FreeBSD), dynamically linked, interpreter /red/herring, not stripped instead of what it should have produced: ELF 64-bit MSB executable, 64-bit PowerPC or cisco 7500, version 1 = (FreeBSD), dynamically linked, interpreter /red/herring, not stripped The differences in content leads to the powerpc64 crashing at the start = of the produced kernel. This means needing to use devel/binutils and/or devel/powerpc64-binutils = instead (at least for ld). =3D=3D=3D Mark Millard markmi at dsl-only.net