From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B078C04AB5 for ; Thu, 6 Jun 2019 07:38:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 57ACA207E0 for ; Thu, 6 Jun 2019 07:38:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726140AbfFFHis (ORCPT ); Thu, 6 Jun 2019 03:38:48 -0400 Received: from mx1.emlix.com ([188.40.240.192]:35430 "EHLO mx1.emlix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725769AbfFFHis (ORCPT ); Thu, 6 Jun 2019 03:38:48 -0400 Received: from mailer.emlix.com (unknown [81.20.119.6]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.emlix.com (Postfix) with ESMTPS id 30E24602BA; Thu, 6 Jun 2019 09:38:45 +0200 (CEST) From: Rolf Eike Beer To: Greg KH Cc: Nick Desaulniers , Ard Biesheuvel , Linus Torvalds , Matt Fleming , Peter Zijlstra , Thomas Gleixner , linux-efi@vger.kernel.org, Linux Kernel Developers List , stable@vger.kernel.org Subject: Re: Building arm64 EFI stub with -fpie breaks build of 4.9.x (undefined reference to `__efistub__GLOBAL_OFFSET_TABLE_') Date: Thu, 06 Jun 2019 09:38:41 +0200 Message-ID: <8696846.WsthzzWoxp@devpool35> Organization: emlix GmbH In-Reply-To: <20190605162626.GA31164@kroah.com> References: <779905244.a0lJJiZRjM@devpool35> <20190605162626.GA31164@kroah.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart6100540.dV2z5JSdMG"; micalg="pgp-sha256"; protocol="application/pgp-signature" Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org --nextPart6100540.dV2z5JSdMG Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Greg KH wrote: > On Wed, Jun 05, 2019 at 05:19:40PM +0200, Rolf Eike Beer wrote: > > I decided to dig out a toy project which uses a DragonBoard 410c. This = has > > been "running" with kernel 4.9, which I would keep this way for unrelat= ed > > reasons. The vanilla 4.9 kernel wasn't bootable back then, but it was > > buildable, which was good enough. > >=20 > > Upgrading the kernel to 4.9.180 caused the boot to suddenly fail: > >=20 > > aarch64-unknown-linux-gnueabi-ld: > > ./drivers/firmware/efi/libstub/lib.a(arm64- stub.stub.o): in function > > `handle_kernel_image': > > /tmp/e2/build/linux-4.9.139/drivers/firmware/efi/libstub/arm64-stub.c:6= 3: > > undefined reference to `__efistub__GLOBAL_OFFSET_TABLE_' > > aarch64-unknown-linux-gnueabi-ld: > > ./drivers/firmware/efi/libstub/lib.a(arm64- stub.stub.o): relocation > > R_AARCH64_ADR_PREL_PG_HI21 against symbol > > `__efistub__GLOBAL_OFFSET_TABLE_' which may bind externally can not be > > used when making a shared object; recompile with -fPIC > > /tmp/e2/build/linux-4.9.139/drivers/firmware/efi/libstub/arm64-stub.c:6= 3: > > (.init.text+0xc): dangerous relocation: unsupported relocation > > /tmp/e2/build/linux-4.9.139/Makefile:1001: recipe for target 'vmlinux' > > failed -make[1]: *** [vmlinux] Error 1 > >=20 > > This is caused by commit 27b5ebf61818749b3568354c64a8ec2d9cd5ecca from > > linux-4.9.y (which is 91ee5b21ee026c49e4e7483de69b55b8b47042be), revert= ing > > this commit fixes the build. > >=20 > > This happens with vanilla binutils 2.32 and gcc 8.3.0 as well as 9.1.0. > > See > > the attached .config for reference. > >=20 > > If you have questions or patches just ping me. >=20 > Does Linus's latest tree also fail for you (or 5.1)? 5.1.7 with the same config as before and "make olddefconfig" builds for me. Eike =2D-=20 Rolf Eike Beer, emlix GmbH, http://www.emlix.com =46on +49 551 30664-0, Fax +49 551 30664-11 Gothaer Platz 3, 37083 G=C3=B6ttingen, Germany Sitz der Gesellschaft: G=C3=B6ttingen, Amtsgericht G=C3=B6ttingen HR B 3160 Gesch=C3=A4ftsf=C3=BChrung: Heike Jordan, Dr. Uwe Kracke =E2=80=93 Ust-IdNr= =2E: DE 205 198 055 emlix - smart embedded open source --nextPart6100540.dV2z5JSdMG Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iLMEAAEIAB0WIQQ/Uctzh31xzAxFCLur5FH7Xu2t/AUCXPjDAQAKCRCr5FH7Xu2t /Pl6BACfD5jQd+TumD4sWaBGoQsHiYGBBixaf/rbCWtituWSjO/lhxnHM7JNGGhU nwqqGrCEw9HpBR5bUXCTpgfF7C11ZD8nXYlDTwBIBWH7HKYFBaGrub8PXCyiZH9v cyC8ctpHj9k/PeZ+tLq+Aie9x4uIlKJVgfTHwAygDH4CD5j5mg== =WMEf -----END PGP SIGNATURE----- --nextPart6100540.dV2z5JSdMG--