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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Jun 2023 12:14:36.7636 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 81f4435b-0515-49d0-0bb7-08db77d13d95 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM7EUR03FT015.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS4PR08MB8192 X-Spam-Status: No, score=-5.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 6/28/23 13:06, Matheus Tavares Bernardino via Gdb wrote: > Hi, > > The remote protocol docs for stop-reply [1] has a list of commands > that accept stop-reply packets as a response: > > "The 'C', 'c', 'S', 's', 'vCont', 'vAttach', 'vRun', 'vStopped', and > '?' packets can receive any of the below as a reply." > > However, at the definition of 'bc' and 'bs' [2], it's also said: > > "Reply: See Stop Reply Packets, for the reply specifications." > > Maybe the list from [1] is not meant to be exhaustive, but perhaps > 'bc' and 'bs' could be added to it? > > [1]: https://sourceware.org/gdb/onlinedocs/gdb/Stop-Reply-Packets.html > [2]: https://sourceware.org/gdb/onlinedocs/gdb/Packets.html#Packets > > Thanks, > Matheus It seems those two commands actions, bc (backwards continue) and bs (backwards step), were never implemented in gdbserver. I wasn't aware they existed at all. The fact they are not properly documented might mean they aren't actually used that much. Do you have a remote debugging stub that can do reverse continue/step over the RSP?