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Mon, 6 Nov 2023 09:36:15 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 068322004B; Mon, 6 Nov 2023 09:36:15 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7CD2620040; Mon, 6 Nov 2023 09:36:14 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.171.47.192]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Nov 2023 09:36:14 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand Cc: Thomas Huth , qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Michael Tokarev , Ilya Leoshkevich Subject: [PATCH v2 2/5] tests/tcg/s390x: Test CLC with inaccessible second operand Date: Mon, 6 Nov 2023 10:31:23 +0100 Message-ID: <20231106093605.1349201-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231106093605.1349201-1-iii@linux.ibm.com> References: <20231106093605.1349201-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: qaae0zSGPSPK9hBkSwFwDYAyBIIXFG0a X-Proofpoint-ORIG-GUID: SUGKdnFD6_D5AZmib-_JHeEJf6dDY5m9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-06_07,2023-11-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 adultscore=0 spamscore=0 phishscore=0 mlxlogscore=836 malwarescore=0 suspectscore=0 mlxscore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310240000 definitions=main-2311060082 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich Reviewed-by: Richard Henderson --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/clc.c | 48 +++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) create mode 100644 tests/tcg/s390x/clc.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 826f0a18e43..ccd4f4e68de 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -41,6 +41,7 @@ TESTS+=larl TESTS+=mdeb TESTS+=cgebra TESTS+=clgebr +TESTS+=clc cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/clc.c b/tests/tcg/s390x/clc.c new file mode 100644 index 00000000000..e14189bd75e --- /dev/null +++ b/tests/tcg/s390x/clc.c @@ -0,0 +1,48 @@ +/* + * Test the CLC instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include + +static void handle_sigsegv(int sig, siginfo_t *info, void *ucontext) +{ + mcontext_t *mcontext = &((ucontext_t *)ucontext)->uc_mcontext; + if (mcontext->gregs[0] != 600) { + write(STDERR_FILENO, "bad r0\n", 7); + _exit(EXIT_FAILURE); + } + if (((mcontext->psw.mask >> 44) & 3) != 1) { + write(STDERR_FILENO, "bad cc\n", 7); + _exit(EXIT_FAILURE); + } + _exit(EXIT_SUCCESS); +} + +int main(void) +{ + register unsigned long r0 asm("r0"); + unsigned long mem = 42, rhs = 500; + struct sigaction act; + int err; + + memset(&act, 0, sizeof(act)); + act.sa_sigaction = handle_sigsegv; + act.sa_flags = SA_SIGINFO; + err = sigaction(SIGSEGV, &act, NULL); + assert(err == 0); + + r0 = 100; + asm("algr %[r0],%[rhs]\n" + "clc 0(8,%[mem]),0(0)\n" /* The 2nd operand will cause a SEGV. */ + : [r0] "+r" (r0) + : [mem] "r" (&mem) + , [rhs] "r" (rhs) + : "cc", "memory"); + + return EXIT_FAILURE; +}