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gdbstub: Fix some gdbstub jankiness 

1. Ensure that register information available to gdbstub is most up-to-date.
2. There's no reason to check for current_thread == thread when emitting a trap.
   Doing this results in random hangs whenever a step happens upon a thread switch.
This commit is contained in:
MerryMage 2020-04-06 21:24:54 +01:00
parent 3b1b8b7e1f
commit d17ab5cd91
2 changed files with 7 additions and 4 deletions
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4
src/core/core.cpp
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@ -50,6 +50,10 @@ System::ResultStatus System::RunLoop(bool tight_loop) {
}
if (GDBStub::IsServerEnabled()) {
Kernel::Thread* thread = kernel->GetCurrentThreadManager().GetCurrentThread();
if (thread && running_core) {
running_core->SaveContext(thread->context);
}
GDBStub::HandlePacket();
// If the loop is halted and we want to step, use a tiny (1) number of instructions to

7
src/core/gdbstub/gdbstub.cpp
View File

@ -1264,10 +1264,9 @@ void SendTrap(Kernel::Thread* thread, int trap) {
return;
}
if (!halt_loop || current_thread == thread) {
current_thread = thread;
SendSignal(thread, trap);
}
current_thread = thread;
SendSignal(thread, trap);
halt_loop = true;
send_trap = false;
}