================
@@ -1363,6 +1374,43 @@ Status ProcessGDBRemote::DoResume() {
}
}
+ if (direction == RunDirection::eRunReverse && continue_packet_error) {
+ if (num_continue_C_tids > 0 || num_continue_S_tids > 0) {
+ error.SetErrorString("can't deliver signals while running in reverse");
+ LLDB_LOGF(log, "ProcessGDBRemote::DoResumeReverse: Signals not
supported");
+ return error;
+ }
+
+ if (num_continue_s_tids > 0) {
+ if (num_continue_s_tids > 1) {
+ error.SetErrorString("can't step multiple threads while
reverse-stepping");
+ LLDB_LOGF(log, "ProcessGDBRemote::DoResumeReverse: can't step
multiple threads");
+ return error;
+ }
+
+ if (!m_gdb_comm.GetReverseStepSupported()) {
+ error.SetErrorString("target does not support reverse-stepping");
+ LLDB_LOGF(log, "ProcessGDBRemote::DoResumeReverse: target does not
support reverse-stepping");
+ return error;
+ }
+
+ m_gdb_comm.SetCurrentThreadForRun(m_continue_s_tids.front());
+ continue_packet.PutCString("bs");
+ } else {
+ if (!m_gdb_comm.GetReverseContinueSupported()) {
----------------
jimingham wrote:
Why do you wait till this late do check that someone asked for a reverse
continue but that's not supported? I would expect that to be the first thing
you checked since you aren't going to do any useful work if that's not true.
https://github.com/llvm/llvm-project/pull/99736
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