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CTRY:GB; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:outbound-uk1.az.dlp.m.darktrace.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(1800799024)(82310400026)(36860700013)(35042699022)(376014)(14060799003); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Apr 2025 13:09:41.7158 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a7bb39aa-3b9f-46c2-d523-08dd83fa7103 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[4.158.2.129]; Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DB1PEPF000509F6.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR08MB7707 X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Luis Machado via Gdb Reply-To: Luis Machado Errors-To: gdb-bounces~public-inbox=simark.ca@sourceware.org Sender: "Gdb" On 4/24/25 17:54, K via Gdb wrote: > A bug in my software is revealed by a debug build which eventually calls > abort(). gdb sees and reports this and I can do a backtrace and find a > memory location I need to investigate. > then I make a run with a watchpoint on said memory location which has to be > software since it's a non-host binary running under qemu. > not only does the watchpoint not get triggered despite ensuring binary is > being loaded to the same address, but gdb only reports that the process has > exitted with an error code - no memory to examine, no backtrace. > > the former is mysterious but the latter is annoying - is this behaviour > necessitated by setting watchpoints? > I have remote access to a machine of the target variety but I would ask > first whether I can expect the behaviour to return to normal when using a > hardware watchpoint. No point is going down a dead end... > Thanks. qemu should know how do do hardware breakpoints. Do you have some logging output from when the watchpoint gets set until gdb runs until the program exits?