From nobody Fri Nov 7 20:34:29 2025 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=temperror (zoho.com: Error in retrieving data from DNS) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1548784763157446.42005404946235; Tue, 29 Jan 2019 09:59:23 -0800 (PST) Received: from localhost ([127.0.0.1]:53223 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1goXfJ-0004cN-NQ for importer@patchew.org; Tue, 29 Jan 2019 12:59:17 -0500 Received: from eggs.gnu.org ([209.51.188.92]:34421) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1goXbT-0001ip-TB for qemu-devel@nongnu.org; Tue, 29 Jan 2019 12:55:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1goXbQ-0000Tf-9n for qemu-devel@nongnu.org; Tue, 29 Jan 2019 12:55:18 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44784) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1goXbN-0000Ri-TK; Tue, 29 Jan 2019 12:55:14 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 04D179B309; Tue, 29 Jan 2019 17:55:13 +0000 (UTC) Received: from x1w.redhat.com (unknown [10.40.205.149]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4161088B35; Tue, 29 Jan 2019 17:54:52 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: Brad Smith , qemu-devel@nongnu.org Date: Tue, 29 Jan 2019 18:53:47 +0100 Message-Id: <20190129175403.18017-3-philmd@redhat.com> In-Reply-To: <20190129175403.18017-1-philmd@redhat.com> References: <20190129175403.18017-1-philmd@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 29 Jan 2019 17:55:13 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 02/18] configure: Disable W^X on OpenBSD X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , qemu-block@nongnu.org, "Michael S. Tsirkin" , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Markus Armbruster , Max Reitz , Kamil Rytarowski , Stefan Hajnoczi , Paolo Bonzini , Igor Mammedov , Fam Zheng Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Since OpenBSD 6.0 [1], W^X is enforced by default [2]. TCG requires WX access. Disable W^X if it is available. This fixes: # lm32-softmmu/qemu-system-lm32 Could not allocate dynamic translator buffer # sysctl kern.wxabort=3D1 kern.wxabort: 0 -> 1 # lm32-softmmu/qemu-system-lm32 mmap: Not supported Abort trap (core dumped) # gdb -q lm32-softmmu/qemu-system-lm32 qemu-system-lm32.core (gdb) bt #0 0x000017e3c156c50a in _thread_sys___syscall () at {standard input}:5 #1 0x000017e3c15e5d7a in *_libc_mmap (addr=3DVariable "addr" is not avai= lable.) at /usr/src/lib/libc/sys/mmap.c:47 #2 0x000017e17d9abc8b in alloc_code_gen_buffer () at /usr/src/qemu/accel= /tcg/translate-all.c:1064 #3 0x000017e17d9abd04 in code_gen_alloc (tb_size=3D0) at /usr/src/qemu/a= ccel/tcg/translate-all.c:1112 #4 0x000017e17d9abe81 in tcg_exec_init (tb_size=3D0) at /usr/src/qemu/ac= cel/tcg/translate-all.c:1149 #5 0x000017e17d9897e9 in tcg_init (ms=3D0x17e45e456800) at /usr/src/qemu= /accel/tcg/tcg-all.c:66 #6 0x000017e17d9891b8 in accel_init_machine (acc=3D0x17e3c3f50800, ms=3D= 0x17e45e456800) at /usr/src/qemu/accel/accel.c:63 #7 0x000017e17d989312 in configure_accelerator (ms=3D0x17e45e456800, pro= gname=3D0x7f7fffff07b0 "lm32-softmmu/qemu-system-lm32") at /usr/src/qemu/ac= cel/accel.c:111 #8 0x000017e17d9d8616 in main (argc=3D1, argv=3D0x7f7fffff06b8, envp=3D0= x7f7fffff06c8) at vl.c:4325 [1] https://www.openbsd.org/faq/upgrade60.html [2] https://undeadly.org/cgi?action=3Darticle&sid=3D20160527203200 Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- configure | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/configure b/configure index b18281c61f..799ec2013b 100755 --- a/configure +++ b/configure @@ -5795,6 +5795,17 @@ if test "$mingw32" =3D "yes" ; then done fi =20 +# Disable OpenBSD W^X if available +if test "$tcg" =3D "yes" -a "$targetos" =3D "OpenBSD"; then + cat > $TMPC <