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Wed, 23 Jun 2021 02:32:51 +0000 (GMT) Received: from vm.lan (unknown [9.145.39.144]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 23 Jun 2021 02:32:51 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand , Laurent Vivier , Cornelia Huck Subject: [PATCH v5 0/2] target/s390x: Fix SIGILL/SIGFPE/SIGTRAP psw.addr reporting Date: Wed, 23 Jun 2021 04:32:48 +0200 Message-Id: <20210623023250.3667563-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.31.1 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: TkoBqRfNP5w2QAHGRGYyGYWN-iWaXJqu X-Proofpoint-GUID: PJO5po-2OWOwMjZaozZYbco9j3qCN_5h Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-06-22_14:2021-06-22, 2021-06-22 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106230008 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, RCVD_IN_MSPIKE_BL=0.001, RCVD_IN_MSPIKE_L3=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "jonathan . albrecht" , Ilya Leoshkevich , Ulrich Weigand , qemu-devel@nongnu.org, Christian Borntraeger , qemu-s390x@nongnu.org, Andreas Krebbel Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" qemu-s390x puts a wrong value into SIGILL's siginfo_t's psw.addr: it should be a pointer to the instruction following the illegal instruction, but at the moment it is a pointer to the illegal instruction itself. This breaks OpenJDK, which relies on this value. A similar problem exists for SIGFPE and SIGTRAP. Patch 1 fixes the issue, patch 2 adds a test. v1: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06592.html v1 -> v2: Use a better buglink (Cornelia), simplify the inline asm magic in the test and add an explanation (David). v2: https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06649.html v2 -> v3: Fix SIGSEGV handling (found when trying to run valgrind under qemu-user). v3: https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg00299.html v3 -> v4: Fix compiling the test on Ubuntu 20.04 (Jonathan). v4: https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg05848.html v4 -> v5: Greatly simplify the fix (Ulrich). Note: the compare-and-trap SIGFPE issue is being fixed separately. https://lists.nongnu.org/archive/html/qemu-devel/2021-06/msg05690.html Ilya Leoshkevich (2): target/s390x: Fix SIGILL/SIGFPE/SIGTRAP psw.addr reporting tests/tcg/s390x: Test SIGILL and SIGSEGV handling linux-user/s390x/cpu_loop.c | 5 + tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/signal.c | 165 ++++++++++++++++++++++++++++++++ 3 files changed, 171 insertions(+) create mode 100644 tests/tcg/s390x/signal.c -- 2.31.1