Atmosphere/stratosphere/dmnt/source/dmnt_main.cpp

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/*
* Copyright (c) Atmosphère-NX
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*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
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#include "cheat/dmnt_cheat_service.hpp"
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#include "cheat/impl/dmnt_cheat_api.hpp"
namespace ams {
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namespace dmnt {
namespace {
constinit u8 g_fs_heap_memory[4_KB];
lmem::HeapHandle g_fs_heap_handle;
void *AllocateForFs(size_t size) {
return lmem::AllocateFromExpHeap(g_fs_heap_handle, size);
}
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void DeallocateForFs(void *p, size_t size) {
AMS_UNUSED(size);
return lmem::FreeToExpHeap(g_fs_heap_handle, p);
}
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void InitializeFsHeap() {
g_fs_heap_handle = lmem::CreateExpHeap(g_fs_heap_memory, sizeof(g_fs_heap_memory), lmem::CreateOption_None);
}
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}
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namespace {
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using ServerOptions = sf::hipc::DefaultServerManagerOptions;
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constexpr sm::ServiceName DebugMonitorServiceName = sm::ServiceName::Encode("dmnt:-");
constexpr size_t DebugMonitorMaxSessions = 4;
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constexpr sm::ServiceName CheatServiceName = sm::ServiceName::Encode("dmnt:cht");
constexpr size_t CheatMaxSessions = 2;
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/* dmnt:-, dmnt:cht. */
constexpr size_t NumServers = 2;
constexpr size_t NumSessions = DebugMonitorMaxSessions + CheatMaxSessions;
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sf::hipc::ServerManager<NumServers, ServerOptions, NumSessions> g_server_manager;
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constinit sf::UnmanagedServiceObject<dmnt::cheat::impl::ICheatInterface, dmnt::cheat::CheatService> g_cheat_service;
void LoopServerThread(void *) {
g_server_manager.LoopProcess();
}
/* NOTE: Nintendo loops four threads processing on the manager -- we'll loop an extra fifth for our cheat service. */
constexpr size_t TotalThreads = DebugMonitorMaxSessions + 1;
static_assert(TotalThreads >= 1, "TotalThreads");
constexpr size_t NumExtraThreads = TotalThreads - 1;
constexpr size_t ThreadStackSize = 0x4000;
alignas(os::MemoryPageSize) u8 g_extra_thread_stacks[NumExtraThreads][ThreadStackSize];
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os::ThreadType g_extra_threads[NumExtraThreads];
void InitializeIpcServer() {
/* Create services. */
R_ABORT_UNLESS(g_server_manager.RegisterObjectForServer(g_cheat_service.GetShared(), CheatServiceName, CheatMaxSessions));
}
void LoopProcessIpcServer() {
/* Initialize threads. */
if constexpr (NumExtraThreads > 0) {
static_assert(AMS_GET_SYSTEM_THREAD_PRIORITY(dmnt, Main) == AMS_GET_SYSTEM_THREAD_PRIORITY(dmnt, Ipc));
for (size_t i = 0; i < NumExtraThreads; i++) {
R_ABORT_UNLESS(os::CreateThread(std::addressof(g_extra_threads[i]), LoopServerThread, nullptr, g_extra_thread_stacks[i], ThreadStackSize, AMS_GET_SYSTEM_THREAD_PRIORITY(dmnt, Ipc)));
os::SetThreadNamePointer(std::addressof(g_extra_threads[i]), AMS_GET_SYSTEM_THREAD_NAME(dmnt, Ipc));
}
}
/* Start extra threads. */
if constexpr (NumExtraThreads > 0) {
for (size_t i = 0; i < NumExtraThreads; i++) {
os::StartThread(std::addressof(g_extra_threads[i]));
}
}
/* Loop this thread. */
LoopServerThread(nullptr);
/* Wait for extra threads to finish. */
if constexpr (NumExtraThreads > 0) {
for (size_t i = 0; i < NumExtraThreads; i++) {
os::WaitThread(std::addressof(g_extra_threads[i]));
}
}
}
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}
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}
namespace init {
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void InitializeSystemModule() {
/* Initialize heap. */
dmnt::InitializeFsHeap();
/* Initialize our connection to sm. */
R_ABORT_UNLESS(sm::Initialize());
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/* Initialize fs. */
fs::InitializeForSystem();
fs::SetAllocator(dmnt::AllocateForFs, dmnt::DeallocateForFs);
fs::SetEnabledAutoAbort(false);
/* Initialize other services we need. */
R_ABORT_UNLESS(pmdmntInitialize());
R_ABORT_UNLESS(pminfoInitialize());
R_ABORT_UNLESS(ldrDmntInitialize());
R_ABORT_UNLESS(roDmntInitialize());
R_ABORT_UNLESS(nsdevInitialize());
lr::Initialize();
R_ABORT_UNLESS(setInitialize());
R_ABORT_UNLESS(setsysInitialize());
R_ABORT_UNLESS(hidInitialize());
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/* Mount the SD card. */
R_ABORT_UNLESS(fs::MountSdCard("sdmc"));
/* Verify that we can sanely execute. */
ams::CheckApiVersion();
}
void FinalizeSystemModule() { /* ... */ }
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void Startup() { /* ... */ }
}
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void Main() {
/* Set thread name. */
os::SetThreadNamePointer(os::GetCurrentThread(), AMS_GET_SYSTEM_THREAD_NAME(dmnt, Main));
AMS_ASSERT(os::GetThreadPriority(os::GetCurrentThread()) == AMS_GET_SYSTEM_THREAD_PRIORITY(dmnt, Main));
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/* Initialize the cheat manager. */
dmnt::cheat::impl::InitializeCheatManager();
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/* Initialize ipc server. */
dmnt::InitializeIpcServer();
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/* Loop processing ipc server. */
dmnt::LoopProcessIpcServer();
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}
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}