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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/core.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/svc.h"
namespace Kernel::Svc {
/// Exits the current process
void ExitProcess(Core::System& system) {
auto* current_process = system.Kernel().CurrentProcess();
LOG_INFO(Kernel_SVC, "Process {} exiting", current_process->GetProcessID());
ASSERT_MSG(current_process->GetState() == KProcess::State::Running,
"Process has already exited");
system.Exit();
}
void ExitProcess32(Core::System& system) {
ExitProcess(system);
}
/// Gets the ID of the specified process or a specified thread's owning process.
Result GetProcessId(Core::System& system, u64* out_process_id, Handle handle) {
LOG_DEBUG(Kernel_SVC, "called handle=0x{:08X}", handle);
// Get the object from the handle table.
KScopedAutoObject obj =
system.Kernel().CurrentProcess()->GetHandleTable().GetObject<KAutoObject>(
static_cast<Handle>(handle));
R_UNLESS(obj.IsNotNull(), ResultInvalidHandle);
// Get the process from the object.
KProcess* process = nullptr;
if (KProcess* p = obj->DynamicCast<KProcess*>(); p != nullptr) {
// The object is a process, so we can use it directly.
process = p;
} else if (KThread* t = obj->DynamicCast<KThread*>(); t != nullptr) {
// The object is a thread, so we want to use its parent.
process = reinterpret_cast<KThread*>(obj.GetPointerUnsafe())->GetOwnerProcess();
} else {
// TODO(bunnei): This should also handle debug objects before returning.
UNIMPLEMENTED_MSG("Debug objects not implemented");
}
// Make sure the target process exists.
R_UNLESS(process != nullptr, ResultInvalidHandle);
// Get the process id.
*out_process_id = process->GetId();
return ResultSuccess;
}
Result GetProcessId32(Core::System& system, u32* out_process_id_low, u32* out_process_id_high,
Handle handle) {
u64 out_process_id{};
const auto result = GetProcessId(system, &out_process_id, handle);
*out_process_id_low = static_cast<u32>(out_process_id);
*out_process_id_high = static_cast<u32>(out_process_id >> 32);
return result;
}
Result GetProcessList(Core::System& system, u32* out_num_processes, VAddr out_process_ids,
u32 out_process_ids_size) {
LOG_DEBUG(Kernel_SVC, "called. out_process_ids=0x{:016X}, out_process_ids_size={}",
out_process_ids, out_process_ids_size);
// If the supplied size is negative or greater than INT32_MAX / sizeof(u64), bail.
if ((out_process_ids_size & 0xF0000000) != 0) {
LOG_ERROR(Kernel_SVC,
"Supplied size outside [0, 0x0FFFFFFF] range. out_process_ids_size={}",
out_process_ids_size);
return ResultOutOfRange;
}
const auto& kernel = system.Kernel();
const auto total_copy_size = out_process_ids_size * sizeof(u64);
if (out_process_ids_size > 0 && !kernel.CurrentProcess()->PageTable().IsInsideAddressSpace(
out_process_ids, total_copy_size)) {
LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}",
out_process_ids, out_process_ids + total_copy_size);
return ResultInvalidCurrentMemory;
}
auto& memory = system.Memory();
const auto& process_list = kernel.GetProcessList();
const auto num_processes = process_list.size();
const auto copy_amount = std::min(std::size_t{out_process_ids_size}, num_processes);
for (std::size_t i = 0; i < copy_amount; ++i) {
memory.Write64(out_process_ids, process_list[i]->GetProcessID());
out_process_ids += sizeof(u64);
}
*out_num_processes = static_cast<u32>(num_processes);
return ResultSuccess;
}
Result GetProcessInfo(Core::System& system, u64* out, Handle process_handle, u32 type) {
LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, type=0x{:X}", process_handle, type);
const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable();
KScopedAutoObject process = handle_table.GetObject<KProcess>(process_handle);
if (process.IsNull()) {
LOG_ERROR(Kernel_SVC, "Process handle does not exist, process_handle=0x{:08X}",
process_handle);
return ResultInvalidHandle;
}
const auto info_type = static_cast<ProcessInfoType>(type);
if (info_type != ProcessInfoType::ProcessState) {
LOG_ERROR(Kernel_SVC, "Expected info_type to be ProcessState but got {} instead", type);
return ResultInvalidEnumValue;
}
*out = static_cast<u64>(process->GetState());
return ResultSuccess;
}
} // namespace Kernel::Svc
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