From nobody Tue May 13 18:39:36 2025 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1677189587; cv=none; d=zohomail.com; s=zohoarc; b=fTztwCULGXU1U96wecekD8tb7XZY2W73w9aTg6ZV80YMKI8FdzJGfeHOB26AJPojHOcWQlb7hjUia8NfGnVZWae2Cfn2BGpiJXJ2Kevq4Ex2zdGNps6Yms7qcIax6VleHugVzUMttFiIdrDdquun3YbDg6c4gvUINhhjGMe6DfA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1677189587; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=cljWyfQzlHde0c2E4jBmfno1X7SMP5F4ZQpJIy8WO+o=; b=O31wrhmav4OMFytmrz4Y5SW+BJWCeZbLJ7a9eQfd6maCM5Rel1Lz7hQKtATNi4iaZr5qgglG5bBGpScscbkSgcRh/Z+7k1bmh+hSYQYnTnrnVJjpiAmjgHyza6klubWJbCT0Xkw2bMo9XcVyj8JsAJ9hqf1Y8iwXCoVvnLmrXho= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1677189587212917.8733636232139; Thu, 23 Feb 2023 13:59:47 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pVJc8-00075Z-4k; Thu, 23 Feb 2023 16:58:56 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pVJc5-00072q-1J for qemu-devel@nongnu.org; Thu, 23 Feb 2023 16:58:53 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pVJc1-0002G4-1R for qemu-devel@nongnu.org; Thu, 23 Feb 2023 16:58:52 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31NKnwip027349; Thu, 23 Feb 2023 21:58:47 GMT Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3nxehg358p-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 21:58:46 +0000 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 31NKsWDG022436; Thu, 23 Feb 2023 21:58:44 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma01fra.de.ibm.com (PPS) with ESMTPS id 3ntpa6df70-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 21:58:44 +0000 Received: from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com [10.20.54.104]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 31NLweRI38207926 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Feb 2023 21:58:40 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C0E4220043; Thu, 23 Feb 2023 21:58:40 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 656D020040; Thu, 23 Feb 2023 21:58:40 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.17.238]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 23 Feb 2023 21:58:40 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pp1; bh=cljWyfQzlHde0c2E4jBmfno1X7SMP5F4ZQpJIy8WO+o=; b=a9a8Q2+vZw5R/BoxoOYKZzanvSfnUCECb4fX7nQfpJNoqu0WX5ryBmBEmrALcork4zAu G/xDHmPVqqExZ/Kw1YuKce1LN6hjcLuLPRZxjrQx/ulU0hOIQBpJhKXjhxq/EPgIj+qc EUAOP4RJkJv8+YRPVeFB6bAK8Q3olcePwnblZ1oqEl8Uxz9p2e8BvtEDK5EqsIDUp37z 3y40GIR86ywSoTNYnjGhvTTTphiNtSTPn84Uy8OZK0/2a2HtMhWHEcnBesg9FCBVCfOO g2cJy2qL3+e0dTitUQ3Jzp62yaAttMQD48BBE2dcUWZUtJrGTBr093a7hrrVxT/WIkbS QQ== From: Ilya Leoshkevich To: =?UTF-8?q?Alex=20Benn=C3=A9e?= , Laurent Vivier Cc: qemu-devel@nongnu.org, Christian Borntraeger , Ilya Leoshkevich , Richard Henderson Subject: [PATCH 2/2] tests/tcg/linux-test: Add linux-fork-trap test Date: Thu, 23 Feb 2023 22:58:34 +0100 Message-Id: <20230223215834.166055-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230223215834.166055-1-iii@linux.ibm.com> References: <20230223215834.166055-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: APVF2KTmdnl8rovKRrJHnFcGhrqgUpTs X-Proofpoint-GUID: APVF2KTmdnl8rovKRrJHnFcGhrqgUpTs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-23_13,2023-02-23_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxscore=0 phishscore=0 impostorscore=0 malwarescore=0 spamscore=0 suspectscore=0 bulkscore=0 adultscore=0 mlxlogscore=978 lowpriorityscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302230177 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=iii@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1677189589177100001 Check that dying due to a signal does not deadlock. Reviewed-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Ilya Leoshkevich --- tests/tcg/multiarch/linux/linux-fork-trap.c | 51 +++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 tests/tcg/multiarch/linux/linux-fork-trap.c diff --git a/tests/tcg/multiarch/linux/linux-fork-trap.c b/tests/tcg/multia= rch/linux/linux-fork-trap.c new file mode 100644 index 00000000000..2bfef800c3e --- /dev/null +++ b/tests/tcg/multiarch/linux/linux-fork-trap.c @@ -0,0 +1,51 @@ +/* + * Test that a fork()ed process terminates after __builtin_trap(). + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include +#include + +int main(void) +{ + struct rlimit nodump; + pid_t err, pid; + int wstatus; + + pid =3D fork(); + assert(pid !=3D -1); + if (pid =3D=3D 0) { + /* We are about to crash on purpose; disable core dumps. */ + if (getrlimit(RLIMIT_CORE, &nodump)) { + return EXIT_FAILURE; + } + nodump.rlim_cur =3D 0; + if (setrlimit(RLIMIT_CORE, &nodump)) { + return EXIT_FAILURE; + } + /* + * An alternative would be to dereference a NULL pointer, but that + * would be an UB in C. + */ + printf("about to trigger fault...\n"); +#if defined(__MICROBLAZE__) + /* + * gcc emits "bri 0", which is an endless loop. + * Take glibc's ABORT_INSTRUCTION. + */ + asm volatile("brki r0,-1"); +#else + __builtin_trap(); +#endif + } + err =3D waitpid(pid, &wstatus, 0); + assert(err =3D=3D pid); + assert(WIFSIGNALED(wstatus)); + printf("faulting thread exited cleanly\n"); + + return EXIT_SUCCESS; +} --=20 2.39.1