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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47567a6f0ddsm10608340f8f.37.2026.06.30.15.01.56 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 30 Jun 2026 15:01:56 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Paolo Bonzini , Xiaoyao Li , Chao Liu , Zhao Liu , Daniel Henrique Barboza , qemu-ppc@nongnu.org, Richard Henderson Subject: [PATCH 07/33] gdbstub: Only return E22 when reverse GDB is not supported Date: Wed, 1 Jul 2026 00:00:34 +0200 Message-ID: <20260630220100.1289-8-philmd@oss.qualcomm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260630220100.1289-1-philmd@oss.qualcomm.com> References: <20260630220100.1289-1-philmd@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjMwMDIxNCBTYWx0ZWRfX/3iRDqRvvBxk OTQKKNpz1daZDxQ5VUy1K5HniELS/F4cgU7YrZZotLzIfm1xtUXO1HdHcGQde/aX4OrS/0ivHrL ZKlXc7gpAM1J1M1kWVf2Jb7gbS9QGJG5rEkLogF4UCNHCXq+2hH9k7S174c7d0mH/MXcjcMI/+E 7Z6QfYB2II6KoidUI4mDqeVAIEKKe7kpyxMwGXjTnIdchHCKyBcCc2KQuK/sL+qr6cgxeFhBep4 wQuNoCidLDhUpAspeIH0vHp2MdvMpYhlZQIEtGbF5LPXl0U5vtT407O9CtIbd+izj3Ejuk2UdW9 74GDtOlqYCzsz1cvzM/F1rbR+4kLvKXdRXXEXAIQbqzXdi3V85PFWbNyohnZy2ub1EjYnvEmwNN ZXlRjwLPW89vtQaPhAOFfFKjMcj6T2z+/QrnhVEOtz1Gr3xDTkrRDIYyk6ZZA83Y/WQhFA9tI+h 2dyWZH3StuPa8JpX3eg== X-Proofpoint-GUID: XbQ_7IuYWhjGDpWc1bYIRWzBBJL-mK6B X-Proofpoint-ORIG-GUID: XbQ_7IuYWhjGDpWc1bYIRWzBBJL-mK6B X-Authority-Analysis: v=2.4 cv=Ivkutr/g c=1 sm=1 tr=0 ts=6a443cd7 cx=c_pps a=+D9SDfe9YZWTjADjLiQY5g==:117 a=4s3hRJSeHn4rkQlkrse1kQ==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=M51BFTxLslgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=0n23ylXGgdPVI_k3iFEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=vmgOmaN-Xu0dpDh8OwbV:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjMwMDIxNCBTYWx0ZWRfXy5709awRtoO4 mnQd9xc3vek2s58CxXopwFeX617hMUDbhOtMkv7eJJTg6SOzTKtLbF98UhbVH9mTmSDPNsFCUBR KVupBMLIOEhAjSgPU4YdKMu9DlZDzBs= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-30_05,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 malwarescore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606300214 Received-SPF: pass client-ip=205.220.180.131; envelope-from=philmd@oss.qualcomm.com; helo=mx0b-0031df01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org No need to keep processing the arguments when we know reverse debugging is not available. Signed-off-by: Philippe Mathieu-Daudé --- gdbstub/gdbstub.c | 1 + 1 file changed, 1 insertion(+) diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 246e7746300..f54415a9db7 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1378,6 +1378,7 @@ static void handle_backward(GArray *params, void *user_ctx) { if (!gdb_can_reverse()) { gdb_put_packet("E22"); + return; } if (params->len == 1) { switch (gdb_get_cmd_param(params, 0)->opcode) { -- 2.53.0