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kern: resolve final non-user-exception MESOSPHERE_UNIMPLEMENTED

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Michael Scire 2020-07-31 00:50:03 -07:00 committed by SciresM
parent 85f533e6c4
commit bea550ebce
1 changed files with 83 additions and 1 deletions
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84
libraries/libmesosphere/source/kern_k_debug_base.cpp
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@ -879,7 +879,81 @@ namespace ams::kern {
}
Result KDebugBase::ProcessDebugEvent(ams::svc::DebugEvent event, uintptr_t param0, uintptr_t param1, uintptr_t param2, uintptr_t param3, uintptr_t param4) {
MESOSPHERE_UNIMPLEMENTED();
/* Get the current process. */
KProcess *process = GetCurrentProcessPointer();
/* If the event is AttachThread and we've already attached, there's nothing to do. */
if (event == ams::svc::DebugEvent_AttachThread) {
R_SUCCEED_IF(GetCurrentThread().IsAttachedToDebugger());
}
while (true) {
/* Lock the process and the scheduler. */
KScopedLightLock state_lk(process->GetStateLock());
KScopedLightLock list_lk(process->GetListLock());
KScopedSchedulerLock sl;
/* If the current thread is terminating, we can't process an event. */
R_SUCCEED_IF(GetCurrentThread().IsTerminationRequested());
/* Get the debug object. If we have none, there's nothing to process. */
KDebugBase *debug = GetDebugObject(process);
R_SUCCEED_IF(debug == nullptr);
/* If the event is an exception and we don't have exception events enabled, we can't handle the event. */
if (event == ams::svc::DebugEvent_Exception && (debug->continue_flags & ams::svc::ContinueFlag_EnableExceptionEvent) == 0) {
GetCurrentThread().SetDebugExceptionResult(ResultSuccess());
return svc::ResultNotHandled();
}
/* If the current thread is suspended, retry. */
if (GetCurrentThread().IsSuspended()) {
continue;
}
/* Suspend all the process's threads. */
{
auto end = process->GetThreadList().end();
for (auto it = process->GetThreadList().begin(); it != end; ++it) {
it->RequestSuspend(KThread::SuspendType_Debug);
}
}
/* Push the event. */
debug->PushDebugEvent(event, param0, param1, param2, param3, param4);
debug->NotifyAvailable();
/* Set the process as breaked. */
process->SetDebugBreak();
/* If the event is an exception, set the result. */
if (event == ams::svc::DebugEvent_Exception) {
GetCurrentThread().SetDebugExceptionResult(ResultSuccess());
}
/* Exit our retry loop. */
break;
}
/* If the event is an exception, get the exception result. */
if (event == ams::svc::DebugEvent_Exception) {
/* Lock the scheduler. */
KScopedSchedulerLock sl;
/* If the thread is terminating, we can't process the exception. */
R_UNLESS(!GetCurrentThread().IsTerminationRequested(), svc::ResultStopProcessingException());
/* Get the debug object. */
if (KDebugBase *debug = GetDebugObject(process); debug != nullptr) {
/* If we have one, check the debug exception. */
return GetCurrentThread().GetDebugExceptionResult();
} else {
/* We don't have a debug object, so stop processing the exception. */
return svc::ResultStopProcessingException();
}
}
return ResultSuccess();
}
Result KDebugBase::OnDebugEvent(ams::svc::DebugEvent event, uintptr_t param0, uintptr_t param1, uintptr_t param2, uintptr_t param3, uintptr_t param4) {
@ -892,9 +966,12 @@ namespace ams::kern {
Result KDebugBase::OnExitProcess(KProcess *process) {
MESOSPHERE_ASSERT(process != nullptr);
/* Check if we're attached to a debugger. */
if (process->IsAttachedToDebugger()) {
/* If we are, lock the scheduler. */
KScopedSchedulerLock sl;
/* Push the event. */
if (KDebugBase *debug = GetDebugObject(process); debug != nullptr) {
debug->PushDebugEvent(ams::svc::DebugEvent_ExitProcess, ams::svc::ProcessExitReason_ExitProcess);
debug->NotifyAvailable();
@ -907,9 +984,12 @@ namespace ams::kern {
Result KDebugBase::OnTerminateProcess(KProcess *process) {
MESOSPHERE_ASSERT(process != nullptr);
/* Check if we're attached to a debugger. */
if (process->IsAttachedToDebugger()) {
/* If we are, lock the scheduler. */
KScopedSchedulerLock sl;
/* Push the event. */
if (KDebugBase *debug = GetDebugObject(process); debug != nullptr) {
debug->PushDebugEvent(ams::svc::DebugEvent_ExitProcess, ams::svc::ProcessExitReason_TerminateProcess);
debug->NotifyAvailable();
@ -922,7 +1002,9 @@ namespace ams::kern {
Result KDebugBase::OnExitThread(KThread *thread) {
MESOSPHERE_ASSERT(thread != nullptr);
/* Check if we're attached to a debugger. */
if (KProcess *process = thread->GetOwnerProcess(); process != nullptr && process->IsAttachedToDebugger()) {
/* If we are, submit the event. */
R_TRY(OnDebugEvent(ams::svc::DebugEvent_ExitThread, thread->GetId(), thread->IsTerminationRequested() ? ams::svc::ThreadExitReason_TerminateThread : ams::svc::ThreadExitReason_ExitThread));
}