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Atmosphere/libraries/libstratosphere/source/pgl/srv/pgl_srv_shell.cpp

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/*
* Copyright (c) Atmosphère-NX
*
* 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>
#include "pgl_srv_shell.hpp"
#include "pgl_srv_shell_event_observer.hpp"
namespace ams::pgl::srv {
namespace {
constexpr inline size_t ProcessDataCount = 0x20;
struct ProcessData {
os::ProcessId process_id;
u32 flags;
};
static_assert(util::is_pod<ProcessData>::value);
enum ProcessDataFlag : u32 {
ProcessDataFlag_None = 0,
ProcessDataFlag_DetailedCrashReportAllowed = (1 << 0),
ProcessDataFlag_DetailedCrashReportEnabled = (1 << 1),
ProcessDataFlag_HasLogOption = (1 << 2),
ProcessDataFlag_OutputAllLog = (1 << 3),
ProcessDataFlag_EnableCrashReportScreenShot = (1 << 4),
};
constinit bool g_is_production = true;
constinit bool g_enable_crash_report_screenshot = true;
constinit bool g_enable_jit_debug = false;
constexpr inline size_t ProcessControlTaskStackSize = 8_KB;
constinit os::ThreadType g_process_control_task_thread = {};
alignas(os::ThreadStackAlignment) constinit u8 g_process_control_task_stack[ProcessControlTaskStackSize];
constinit os::SdkMutex g_observer_list_mutex;
constinit util::IntrusiveListBaseTraits<ShellEventObserverHolder>::ListType g_observer_list;
constinit os::SdkMutex g_process_data_mutex;
constinit ProcessData g_process_data[ProcessDataCount] = {};
constinit os::ProcessId g_crashed_process_id = os::InvalidProcessId;
constinit os::ProcessId g_creport_process_id = os::InvalidProcessId;
constinit os::ProcessId g_ssd_process_id = os::InvalidProcessId;
ProcessData *FindProcessData(os::ProcessId process_id) {
for (auto &data : g_process_data) {
if (data.process_id == process_id) {
return std::addressof(data);
}
}
return nullptr;
}
u32 ConvertToProcessDataFlags(u8 pgl_flags) {
if ((pgl_flags & pgl::LaunchFlags_EnableDetailedCrashReport) == 0) {
/* If we shouldn't generate detailed crash reports, set no flags. */
return ProcessDataFlag_None;
} else {
/* We can and should generate detailed crash reports. */
u32 data_flags = ProcessDataFlag_DetailedCrashReportAllowed | ProcessDataFlag_DetailedCrashReportEnabled;
/* If we should enable crash report screenshots, check the correct flag. */
if (g_enable_crash_report_screenshot) {
const u32 test_flag = g_is_production ? pgl::LaunchFlags_EnableCrashReportScreenShotForProduction : pgl::LaunchFlags_EnableCrashReportScreenShotForDevelop;
if ((pgl_flags & test_flag) != 0) {
data_flags |= ProcessDataFlag_EnableCrashReportScreenShot;
}
}
return data_flags;
}
}
util::optional<os::ProcessId> GetRunningApplicationProcessId() {
os::ProcessId process_id;
if (R_SUCCEEDED(pm::shell::GetApplicationProcessIdForShell(std::addressof(process_id)))) {
return process_id;
} else {
return util::nullopt;
}
}
s32 ConvertDumpTypeToArgument(SnapShotDumpType dump_type) {
switch (dump_type) {
case SnapShotDumpType::None: return -1;
case SnapShotDumpType::Auto: return 0;
case SnapShotDumpType::Full: return 1;
AMS_UNREACHABLE_DEFAULT_CASE();
}
}
bool GetSnapShotDumpOutputAllLog(os::ProcessId process_id) {
/* Check if we have an option set for the process. */
{
std::scoped_lock lk(g_process_data_mutex);
if (ProcessData *data = FindProcessData(process_id); data != nullptr) {
if ((data->flags & ProcessDataFlag_HasLogOption) != 0) {
return ((data->flags & ProcessDataFlag_OutputAllLog) != 0);
}
}
}
/* If we don't have an option for the process, fall back to settings. */
u8 log_option;
const size_t option_size = settings::fwdbg::GetSettingsItemValue(std::addressof(log_option), sizeof(log_option), "snap_shot_dump", "output_all_log");
return (option_size == sizeof(log_option) && log_option != 0);
}
size_t CreateSnapShotDumpArguments(char *dst, size_t dst_size, os::ProcessId process_id, SnapShotDumpType dump_type, const char *str_arg) {
const s32 dump_arg = ConvertDumpTypeToArgument(dump_type);
const s32 log_arg = GetSnapShotDumpOutputAllLog(process_id) ? 1 : 0;
if (str_arg != nullptr) {
return util::SNPrintf(dst, dst_size, "D %010llu \"%s\" -log %d -dump %d", static_cast<unsigned long long>(static_cast<u64>(process_id)), str_arg, log_arg, dump_arg);
} else {
return util::SNPrintf(dst, dst_size, "D %010llu -log %d -dump %d", static_cast<unsigned long long>(static_cast<u64>(process_id)), log_arg, dump_arg);
}
}
Result TriggerSnapShotDumper(os::ProcessId process_id, SnapShotDumpType dump_type, const char *arg) {
/* Create the arguments. */
char process_arguments[800];
const size_t arg_len = CreateSnapShotDumpArguments(process_arguments, sizeof(process_arguments), process_id, dump_type, arg);
/* Set the arguments. */
R_TRY(ldr::SetProgramArgument(ncm::SystemDebugAppletId::SnapShotDumper, process_arguments, arg_len + 1));
/* Launch the process. */
os::ProcessId ssd_process_id = os::InvalidProcessId;
R_TRY(pm::shell::LaunchProgram(std::addressof(ssd_process_id), ncm::ProgramLocation::Make(ncm::SystemDebugAppletId::SnapShotDumper, ncm::StorageId::BuiltInSystem), pm::LaunchFlags_None));
/* Set the globals. */
g_crashed_process_id = process_id;
g_ssd_process_id = ssd_process_id;
R_SUCCEED();
}
bool ShouldSnapShotAutoDump() {
bool dump;
const size_t sz = settings::fwdbg::GetSettingsItemValue(std::addressof(dump), sizeof(dump), "snap_shot_dump", "auto_dump");
return sz == sizeof(dump) && dump;
}
bool ShouldSnapShotFullDump() {
bool dump;
const size_t sz = settings::fwdbg::GetSettingsItemValue(std::addressof(dump), sizeof(dump), "snap_shot_dump", "full_dump");
return sz == sizeof(dump) && dump;
}
SnapShotDumpType GetSnapShotDumpType() {
if (ShouldSnapShotAutoDump()) {
if (ShouldSnapShotFullDump()) {
return SnapShotDumpType::Full;
} else {
return SnapShotDumpType::Auto;
}
} else {
return SnapShotDumpType::None;
}
}
void TriggerSnapShotDumper(os::ProcessId process_id) {
TriggerSnapShotDumper(process_id, GetSnapShotDumpType(), nullptr);
}
s32 GetCrashReportDetailedArgument(u32 data_flags) {
if (((data_flags & ProcessDataFlag_DetailedCrashReportAllowed) != 0) && ((data_flags & ProcessDataFlag_DetailedCrashReportEnabled) != 0)) {
return 1;
} else {
return 0;
}
}
s32 GetCrashReportScreenShotArgument(u32 data_flags) {
if (settings::system::GetErrorReportSharePermission() == settings::system::ErrorReportSharePermission_Granted) {
return ((data_flags & ProcessDataFlag_EnableCrashReportScreenShot) != 0) ? 1 : 0;
} else {
return 0;
}
}
void TriggerCrashReport(os::ProcessId process_id) {
/* If the program that crashed is creport, we should just terminate both processes and return. */
if (process_id == g_creport_process_id) {
TerminateProcess(g_crashed_process_id);
TerminateProcess(g_creport_process_id);
g_crashed_process_id = os::InvalidProcessId;
g_creport_process_id = os::InvalidProcessId;
return;
}
/* Get the data flags for the process. */
u32 data_flags;
{
std::scoped_lock lk(g_process_data_mutex);
if (auto *data = FindProcessData(process_id); data != nullptr) {
data_flags = data->flags;
} else {
data_flags = ProcessDataFlag_None;
}
}
/* Generate arguments. */
char arguments[0x40];
const size_t len = util::SNPrintf(arguments, sizeof(arguments), "%" PRId64 " %d %d %d", static_cast<s64>(static_cast<u64>(process_id)), GetCrashReportDetailedArgument(data_flags), GetCrashReportScreenShotArgument(data_flags), g_enable_jit_debug);
if (R_FAILED(ldr::SetProgramArgument(ncm::SystemProgramId::Creport, arguments, len + 1))) {
return;
}
/* Launch creport. */
os::ProcessId creport_process_id;
if (R_FAILED(pm::shell::LaunchProgram(std::addressof(creport_process_id), ncm::ProgramLocation::Make(ncm::SystemProgramId::Creport, ncm::StorageId::BuiltInSystem), pm::LaunchFlags_None))) {
return;
}
/* Set the globals. */
g_crashed_process_id = process_id;
g_creport_process_id = creport_process_id;
}
void HandleException(os::ProcessId process_id) {
if (g_enable_jit_debug) {
/* If jit debug is enabled, we want to try to launch snap shot dumper. */
ProcessData *data = nullptr;
{
std::scoped_lock lk(g_process_data_mutex);
data = FindProcessData(process_id);
}
/* If we're tracking the process, we can launch dumper. Otherwise we should just terminate. */
if (data != nullptr) {
TriggerSnapShotDumper(process_id);
} else {
TerminateProcess(process_id);
}
} else {
/* Otherwise, we want to launch creport. */
TriggerCrashReport(process_id);
}
}
void HandleExit(os::ProcessId process_id) {
std::scoped_lock lk(g_process_data_mutex);
if (auto *data = FindProcessData(process_id); data != nullptr) {
data->process_id = os::InvalidProcessId;
}
}
void OnProcessEvent(const pm::ProcessEventInfo &event_info) {
/* Determine if we're tracking the process. */
ProcessData *data = nullptr;
{
std::scoped_lock lk(g_process_data_mutex);
data = FindProcessData(event_info.process_id);
}
/* If we are, we're going to want to notify our listeners. */
if (data != nullptr) {
/* If we closed the process, note that. */
if (static_cast<pm::ProcessEvent>(event_info.event) == pm::ProcessEvent::Exited) {
HandleExit(event_info.process_id);
}
/* Notify all observers. */
std::scoped_lock lk(g_observer_list_mutex);
for (auto &observer : g_observer_list) {
observer.Notify(event_info);
}
}
/* If the process crashed, handle that. */
if (static_cast<pm::ProcessEvent>(event_info.event) == pm::ProcessEvent::Exception) {
HandleException(event_info.process_id);
}
}
void ProcessControlTask(void *) {
/* Get the process event event from pm. */
os::SystemEvent process_event;
R_ABORT_UNLESS(pm::shell::GetProcessEventEvent(std::addressof(process_event)));
while (true) {
/* Wait for an event to come in, and clear our signal. */
process_event.Wait();
process_event.Clear();
bool continue_getting_event = true;
while (continue_getting_event) {
/* Try to get an event info. */
pm::ProcessEventInfo event_info;
if (R_FAILED(pm::shell::GetProcessEventInfo(std::addressof(event_info)))) {
break;
}
/* Process the event. */
switch (static_cast<pm::ProcessEvent>(event_info.event)) {
case pm::ProcessEvent::None:
continue_getting_event = false;
break;
case pm::ProcessEvent::Exited:
{
/* If SnapShotDumper terminated, trigger a crash report. */
if (event_info.process_id == g_ssd_process_id && g_crashed_process_id != os::InvalidProcessId) {
TriggerCrashReport(g_crashed_process_id);
}
}
[[fallthrough]];
case pm::ProcessEvent::Started:
case pm::ProcessEvent::Exception:
case pm::ProcessEvent::DebugRunning:
case pm::ProcessEvent::DebugBreak:
OnProcessEvent(event_info);
break;
AMS_UNREACHABLE_DEFAULT_CASE();
}
}
}
}
}
void InitializeProcessControlTask() {
/* Create the task thread. */
R_ABORT_UNLESS(os::CreateThread(std::addressof(g_process_control_task_thread), ProcessControlTask, nullptr, g_process_control_task_stack, sizeof(g_process_control_task_stack), AMS_GET_SYSTEM_THREAD_PRIORITY(pgl, ProcessControlTask)));
os::SetThreadNamePointer(std::addressof(g_process_control_task_thread), AMS_GET_SYSTEM_THREAD_NAME(pgl, ProcessControlTask));
/* Retrieve settings. */
settings::fwdbg::GetSettingsItemValue(std::addressof(g_enable_jit_debug), sizeof(g_enable_jit_debug), "jit_debug", "enable_jit_debug");
settings::fwdbg::GetSettingsItemValue(std::addressof(g_enable_crash_report_screenshot), sizeof(g_enable_crash_report_screenshot), "creport", "crash_screen_shot");
g_is_production = !settings::fwdbg::IsDebugModeEnabled();
/* Clear all process data. */
{
for (size_t i = 0; i < util::size(g_process_data); i++) {
g_process_data[i].process_id = os::InvalidProcessId;
}
}
/* Start the thread. */
os::StartThread(std::addressof(g_process_control_task_thread));
}
void RegisterShellEventObserver(ShellEventObserverHolder *holder) {
std::scoped_lock lk(g_observer_list_mutex);
g_observer_list.push_back(*holder);
}
void UnregisterShellEventObserver(ShellEventObserverHolder *holder) {
std::scoped_lock lk(g_observer_list_mutex);
for (auto &observer : g_observer_list) {
if (std::addressof(observer) == holder) {
g_observer_list.erase(g_observer_list.iterator_to(observer));
break;
}
}
}
Result LaunchProgram(os::ProcessId *out, const ncm::ProgramLocation &loc, u32 pm_flags, u8 pgl_flags) {
/* Convert the input flags to the internal format. */
const u32 data_flags = ConvertToProcessDataFlags(pgl_flags);
/* If jit debug is enabled, we want to be signaled on crash. */
if (g_enable_jit_debug) {
pm_flags |= pm::LaunchFlags_SignalOnException;
}
/* Launch the process. */
os::ProcessId process_id;
R_TRY(pm::shell::LaunchProgram(std::addressof(process_id), loc, pm_flags & pm::LaunchFlagsMask));
/* Create a ProcessData for the process. */
{
std::scoped_lock lk(g_process_data_mutex);
ProcessData *new_data = FindProcessData(os::InvalidProcessId);
AMS_ABORT_UNLESS(new_data != nullptr);
new_data->process_id = process_id;
new_data->flags = data_flags;
}
/* We succeeded. */
*out = process_id;
R_SUCCEED();
}
Result TerminateProcess(os::ProcessId process_id) {
/* Ask PM to terminate the process. */
R_RETURN(pm::shell::TerminateProcess(process_id));
}
Result GetApplicationProcessId(os::ProcessId *out) {
/* Get the application process id. */
auto application_process_id = GetRunningApplicationProcessId();
R_UNLESS(application_process_id, pgl::ResultApplicationNotRunning());
/* Return the id. */
*out = *application_process_id;
R_SUCCEED();
}
Result BoostSystemMemoryResourceLimit(u64 size) {
/* Ask PM to boost the limit. */
R_RETURN(pm::shell::BoostSystemMemoryResourceLimit(size));
}
bool IsProcessTracked(os::ProcessId process_id) {
/* Check whether a ProcessData exists for the process. */
std::scoped_lock lk(g_process_data_mutex);
return FindProcessData(process_id) != nullptr;
}
void EnableApplicationCrashReport(bool enabled) {
/* Get the application process id. */
auto application_process_id = GetRunningApplicationProcessId();
if (application_process_id) {
/* Find the data for the application process. */
std::scoped_lock lk(g_process_data_mutex);
ProcessData *data = FindProcessData(*application_process_id);
/* It's okay if we aren't tracking the process. */
if (data != nullptr) {
/* Set or clear the flag. */
if (enabled) {
data->flags |= ProcessDataFlag_DetailedCrashReportEnabled;
} else {
data->flags &= ~ProcessDataFlag_DetailedCrashReportEnabled;
}
}
}
}
bool IsApplicationCrashReportEnabled() {
/* Get the application process id. */
auto application_process_id = GetRunningApplicationProcessId();
if (!application_process_id) {
return false;
}
/* Find the data for the process. */
std::scoped_lock lk(g_process_data_mutex);
if (ProcessData *data = FindProcessData(*application_process_id); data != nullptr) {
return (data->flags & ProcessDataFlag_DetailedCrashReportEnabled) != 0;
} else {
return false;
}
}
void EnableApplicationAllThreadDumpOnCrash(bool enabled) {
/* Get the application process id. */
auto application_process_id = GetRunningApplicationProcessId();
if (application_process_id) {
/* Find the data for the application process. */
std::scoped_lock lk(g_process_data_mutex);
ProcessData *data = FindProcessData(*application_process_id);
/* It's okay if we aren't tracking the process. */
if (data != nullptr) {
/* Set or clear the flag. */
if (enabled) {
data->flags |= ProcessDataFlag_OutputAllLog;
} else {
data->flags &= ~ProcessDataFlag_OutputAllLog;
}
/* NOTE: Here Nintendo releases the lock, re-takes the lock, and re-finds the process data. */
/* This is unnecessary and less efficient, so we will not bother. */
/* Note that the flag bit has a meaningful value. */
data->flags |= ProcessDataFlag_HasLogOption;
}
}
}
Result TriggerApplicationSnapShotDumper(SnapShotDumpType dump_type, const char *arg) {
/* Try to get the application process id. */
os::ProcessId process_id;
R_TRY(pm::shell::GetApplicationProcessIdForShell(std::addressof(process_id)));
/* Launch the snapshot dumper, clearing the global tracker process id. */
ON_SCOPE_EXIT { g_ssd_process_id = os::InvalidProcessId; };
R_RETURN(TriggerSnapShotDumper(process_id, dump_type, arg));
}
}
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