mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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102 lines
No EOL
3.4 KiB
C++
102 lines
No EOL
3.4 KiB
C++
/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <map>
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#include <switch.h>
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#include "dmnt_config.hpp"
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#include "dmnt_cheat_debug_events_manager.hpp"
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/* WORKAROUND: This design prevents a kernel deadlock from occurring on 6.0.0+ */
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static HosThread g_per_core_threads[DmntCheatDebugEventsManager::NumCores];
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static HosMessageQueue *g_per_core_queues[DmntCheatDebugEventsManager::NumCores];
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static HosSignal g_continued_signal;
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void DmntCheatDebugEventsManager::PerCoreThreadFunc(void *arg) {
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/* This thread will simply wait on the appropriate message queue. */
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size_t current_core = reinterpret_cast<size_t>(arg);
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while (true) {
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Handle debug_handle = 0;
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/* Get the debug handle. */
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{
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uintptr_t x = 0;
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g_per_core_queues[current_core]->Receive(&x);
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debug_handle = static_cast<Handle>(x);
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}
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/* Continue the process, if needed. */
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if (kernelAbove300()) {
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svcContinueDebugEvent(debug_handle, 5, nullptr, 0);
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} else {
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svcLegacyContinueDebugEvent(debug_handle, 5, 0);
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}
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g_continued_signal.Signal();
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}
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}
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void DmntCheatDebugEventsManager::ContinueCheatProcess(Handle cheat_dbg_hnd) {
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/* Loop getting debug events. */
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DebugEventInfo dbg_event;
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while (R_SUCCEEDED(svcGetDebugEvent((u8 *)&dbg_event, cheat_dbg_hnd))) {
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/* ... */
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}
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size_t target_core = DmntCheatDebugEventsManager::NumCores - 1;
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/* Retrieve correct core for new thread event. */
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if (dbg_event.type == DebugEventType::AttachThread) {
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u64 out64;
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u32 out32;
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Result rc = svcGetDebugThreadParam(&out64, &out32, cheat_dbg_hnd, dbg_event.info.attach_thread.thread_id, DebugThreadParam_CurrentCore);
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if (R_FAILED(rc)) {
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fatalSimple(rc);
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}
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target_core = out32;
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}
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/* Make appropriate thread continue. */
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g_per_core_queues[target_core]->Send(static_cast<uintptr_t>(cheat_dbg_hnd));
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/* Wait. */
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g_continued_signal.Wait();
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g_continued_signal.Reset();
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}
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void DmntCheatDebugEventsManager::Initialize() {
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/* Spawn per core resources. */
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for (size_t i = 0; i < DmntCheatDebugEventsManager::NumCores; i++) {
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/* Create queue. */
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g_per_core_queues[i] = new HosMessageQueue(1);
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/* Create thread. */
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if (R_FAILED(g_per_core_threads[i].Initialize(&DmntCheatDebugEventsManager::PerCoreThreadFunc, reinterpret_cast<void *>(i), 0x1000, 24, i))) {
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std::abort();
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}
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/* Set core mask. */
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if (R_FAILED(svcSetThreadCoreMask(g_per_core_threads[i].GetHandle(), i, (1u << i)))) {
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std::abort();
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}
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/* Start thread. */
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if (R_FAILED(g_per_core_threads[i].Start())) {
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std::abort();
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}
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}
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} |