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Tue, 9 Jan 2024 23:08:11 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0EA1D20043; Tue, 9 Jan 2024 23:08:11 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9129320040; Tue, 9 Jan 2024 23:08:10 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.171.60.193]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 9 Jan 2024 23:08:10 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , Peter Maydell , =?utf-8?q?Alex_Benn=C3=A9e?= , David Hildenbrand Cc: Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , qemu-devel@nongnu.org, qemu-arm@nongnu.org, qemu-s390x@nongnu.org, Ilya Leoshkevich Subject: [PATCH v2 0/3] linux-user: Allow gdbstub to ignore page protection Date: Wed, 10 Jan 2024 00:05:52 +0100 Message-ID: <20240109230808.583012-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: scAaSRplPvUgjbDknyyL-fMUr0uBPcQ_ X-Proofpoint-ORIG-GUID: OA-ZZ68_N2V5tawb6PWxZeC7ZbCoHM6X X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-09_11,2024-01-09_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 phishscore=0 mlxlogscore=743 impostorscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 suspectscore=0 priorityscore=1501 spamscore=0 adultscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401090186 Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; helo=mx0b-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 v1 -> v2: Use /proc/self/mem as a fallback. Handle TB invalidation (Richard). Test cross-page accesses. RFC: https://lists.gnu.org/archive/html/qemu-devel/2023-12/msg02044.html RFC -> v1: Use /proc/self/mem and accept that this will not work without /proc. Factor out a couple functions for gdbstub testing. Add a test. Hi, I've noticed that gdbstub behaves differently from gdbserver in that it doesn't allow reading non-readable pages. This series improves the situation by using the same mechanism as gdbserver: /proc/self/mem. Best regards, Ilya Ilya Leoshkevich (3): linux-user: Allow gdbstub to ignore page protection tests/tcg: Factor out gdbstub test functions tests/tcg: Add the PROT_NONE gdbstub test cpu-target.c | 76 +++++++++++++++---- tests/guest-debug/run-test.py | 7 +- tests/guest-debug/test_gdbstub.py | 56 ++++++++++++++ tests/tcg/aarch64/gdbstub/test-sve-ioctl.py | 34 +-------- tests/tcg/aarch64/gdbstub/test-sve.py | 33 +------- tests/tcg/multiarch/Makefile.target | 9 ++- tests/tcg/multiarch/gdbstub/interrupt.py | 47 ++---------- tests/tcg/multiarch/gdbstub/memory.py | 41 +--------- tests/tcg/multiarch/gdbstub/prot-none.py | 22 ++++++ tests/tcg/multiarch/gdbstub/registers.py | 41 ++-------- tests/tcg/multiarch/gdbstub/sha1.py | 40 ++-------- .../multiarch/gdbstub/test-proc-mappings.py | 39 +--------- .../multiarch/gdbstub/test-qxfer-auxv-read.py | 37 +-------- .../gdbstub/test-thread-breakpoint.py | 37 +-------- tests/tcg/multiarch/prot-none.c | 40 ++++++++++ tests/tcg/s390x/gdbstub/test-signals-s390x.py | 42 +--------- tests/tcg/s390x/gdbstub/test-svc.py | 39 +--------- 17 files changed, 227 insertions(+), 413 deletions(-) create mode 100644 tests/guest-debug/test_gdbstub.py create mode 100644 tests/tcg/multiarch/gdbstub/prot-none.py create mode 100644 tests/tcg/multiarch/prot-none.c