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Code Issues Releases Activity

dmnt-cheat: Fix debug event management

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This commit is contained in:
Michael Scire 2019-03-05 23:58:36 -08:00
parent 512dbc3a24
commit 4d0ab41e6e
3 changed files with 65 additions and 39 deletions
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99
stratosphere/dmnt/source/dmnt_cheat_manager.cpp
View file

@ -30,8 +30,9 @@ static DmntCheatVm *g_cheat_vm;
static CheatProcessMetadata g_cheat_process_metadata = {0};
static Handle g_cheat_process_debug_hnd = 0;
/* For signalling the debug events thread. */
static HosSignal g_has_cheat_process_signal;
/* For debug event thread management. */
static HosMutex g_debug_event_thread_lock;
static bool g_has_debug_events_thread = false;
/* To save some copying. */
static bool g_needs_reload_vm_program = false;
@ -42,11 +43,39 @@ static CheatEntry g_cheat_entries[DmntCheatManager::MaxCheatCount];
/* Global frozen address storage. */
static std::map<u64, FrozenAddressValue> g_frozen_addresses_map;
void DmntCheatManager::CloseActiveCheatProcess() {
if (g_cheat_process_debug_hnd != 0) {
/* We're no longer in possession of a debug process. */
g_has_cheat_process_signal.Reset();
void DmntCheatManager::StartDebugEventsThread() {
std::scoped_lock<HosMutex> lk(g_debug_event_thread_lock);
/* Spawn the debug events thread. */
if (!g_has_debug_events_thread) {
Result rc;
if (R_FAILED((rc = g_debug_events_thread.Initialize(&DmntCheatManager::DebugEventsThread, nullptr, 0x4000, 48)))) {
return fatalSimple(rc);
}
if (R_FAILED((rc = g_debug_events_thread.Start()))) {
return fatalSimple(rc);
}
g_has_debug_events_thread = true;
}
}
void DmntCheatManager::WaitDebugEventsThread() {
std::scoped_lock<HosMutex> lk(g_debug_event_thread_lock);
/* Wait for the thread to exit. */
if (g_has_debug_events_thread) {
g_debug_events_thread.CancelSynchronization();
g_debug_events_thread.Join();
g_has_debug_events_thread = false;
}
}
void DmntCheatManager::CloseActiveCheatProcess() {
if (g_cheat_process_debug_hnd != 0) {
/* Close process resources. */
svcCloseHandle(g_cheat_process_debug_hnd);
g_cheat_process_debug_hnd = 0;
@ -71,6 +100,10 @@ bool DmntCheatManager::HasActiveCheatProcess() {
has_cheat_process &= R_SUCCEEDED(svcGetProcessId(&tmp, g_cheat_process_debug_hnd));
}
if (has_cheat_process) {
has_cheat_process &= R_SUCCEEDED(pmdmntGetApplicationPid(&tmp));
}
if (has_cheat_process) {
has_cheat_process &= tmp == g_cheat_process_metadata.process_id;
}
@ -89,7 +122,7 @@ void DmntCheatManager::ContinueCheatProcess() {
while (R_SUCCEEDED(svcGetDebugEvent((u8 *)debug_event_buf, g_cheat_process_debug_hnd))) {
/* ... */
}
/* Continue the process. */
if (kernelAbove300()) {
svcContinueDebugEvent(g_cheat_process_debug_hnd, 5, nullptr, 0);
@ -652,6 +685,11 @@ Result DmntCheatManager::ForceOpenCheatProcess() {
return 0;
}
/* Close the current application, if it's open. */
CloseActiveCheatProcess();
/* Wait to not have debug events thread. */
WaitDebugEventsThread();
/* Get the current application process ID. */
if (R_FAILED((rc = pmdmntGetApplicationPid(&g_cheat_process_metadata.process_id)))) {
return rc;
@ -712,13 +750,10 @@ Result DmntCheatManager::ForceOpenCheatProcess() {
if (R_FAILED((rc = svcDebugActiveProcess(&g_cheat_process_debug_hnd, g_cheat_process_metadata.process_id)))) {
return rc;
}
/* Start debug events thread. */
StartDebugEventsThread();
/* Continue debug events, etc. */
ContinueCheatProcess();
/* Signal to debug event swallower. */
g_has_cheat_process_signal.Signal();
/* Signal to our fans. */
g_cheat_process_event->Signal();
@ -732,6 +767,9 @@ void DmntCheatManager::OnNewApplicationLaunch() {
/* Close the current application, if it's open. */
CloseActiveCheatProcess();
/* Wait to not have debug events thread. */
WaitDebugEventsThread();
/* Get the new application's process ID. */
if (R_FAILED((rc = pmdmntGetApplicationPid(&g_cheat_process_metadata.process_id)))) {
fatalSimple(rc);
@ -801,13 +839,10 @@ void DmntCheatManager::OnNewApplicationLaunch() {
/* Start the process. */
StartDebugProcess(g_cheat_process_metadata.process_id);
/* Continue debug events, etc. */
ContinueCheatProcess();
/* Signal to debug event swallower. */
g_has_cheat_process_signal.Signal();
/* Start debug events thread. */
StartDebugEventsThread();
/* Signal to our fans. */
g_cheat_process_event->Signal();
}
@ -862,20 +897,12 @@ void DmntCheatManager::VmThread(void *arg) {
}
void DmntCheatManager::DebugEventsThread(void *arg) {
while (true) {
/* Wait to have a cheat process. */
g_has_cheat_process_signal.Wait();
while (R_SUCCEEDED(svcWaitSynchronizationSingle(g_cheat_process_debug_hnd, U64_MAX))) {
std::scoped_lock<HosMutex> lk(g_cheat_lock);
while (g_cheat_process_debug_hnd != 0 && R_SUCCEEDED(svcWaitSynchronizationSingle(g_cheat_process_debug_hnd, U64_MAX))) {
{
std::scoped_lock<HosMutex> lk(g_cheat_lock);
/* Handle any pending debug events. */
if (HasActiveCheatProcess()) {
ContinueCheatProcess();
}
}
svcSleepThread(1000000ull);
/* Handle any pending debug events. */
if (HasActiveCheatProcess()) {
ContinueCheatProcess();
}
}
}
@ -917,12 +944,8 @@ void DmntCheatManager::InitializeCheatManager() {
std::abort();
}
if (R_FAILED(g_debug_events_thread.Initialize(&DmntCheatManager::DebugEventsThread, nullptr, 0x4000, 48))) {
std::abort();
}
/* Start threads. */
if (R_FAILED(g_detect_thread.Start()) || R_FAILED(g_vm_thread.Start()) || R_FAILED(g_debug_events_thread.Start())) {
if (R_FAILED(g_detect_thread.Start()) || R_FAILED(g_vm_thread.Start())) {
std::abort();
}
}

3
stratosphere/dmnt/source/dmnt_cheat_manager.hpp
View file

@ -31,6 +31,9 @@ class DmntCheatManager {
static void VmThread(void *arg);
static void DebugEventsThread(void *arg);
static void StartDebugEventsThread();
static void WaitDebugEventsThread();
static bool HasActiveCheatProcess();
static void CloseActiveCheatProcess();
static void ContinueCheatProcess();

2
stratosphere/libstratosphere

@ -1 +1 @@
Subproject commit 0fbc0e2f468762de62d2b14d6495247d04e80bc3
Subproject commit 49d2188f6fb71b54532f089a2c9439665a327ccd