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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 = GetCurrentProcessPointer(system.Kernel());
LOG_INFO(Kernel_SVC, "Process {} exiting", current_process->GetProcessId());
ASSERT_MSG(current_process->GetState() == KProcess::State::Running,
"Process has already exited");
system.Exit();
}
/// 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 = GetCurrentProcess(system.Kernel())
.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();
R_SUCCEED();
}
Result GetProcessList(Core::System& system, s32* out_num_processes, VAddr out_process_ids,
int32_t 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);
R_THROW(ResultOutOfRange);
}
auto& kernel = system.Kernel();
const auto total_copy_size = out_process_ids_size * sizeof(u64);
if (out_process_ids_size > 0 && !GetCurrentProcess(kernel).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);
R_THROW(ResultInvalidCurrentMemory);
}
auto& memory = system.Memory();
const auto& process_list = kernel.GetProcessList();
const auto num_processes = process_list.size();
const auto copy_amount =
std::min(static_cast<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);
R_SUCCEED();
}
Result GetProcessInfo(Core::System& system, s64* out, Handle process_handle,
ProcessInfoType info_type) {
LOG_DEBUG(Kernel_SVC, "called, handle=0x{:08X}, type=0x{:X}", process_handle, info_type);
const auto& handle_table = GetCurrentProcess(system.Kernel()).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);
R_THROW(ResultInvalidHandle);
}
if (info_type != ProcessInfoType::ProcessState) {
LOG_ERROR(Kernel_SVC, "Expected info_type to be ProcessState but got {} instead",
info_type);
R_THROW(ResultInvalidEnumValue);
}
*out = static_cast<s64>(process->GetState());
R_SUCCEED();
}
Result CreateProcess(Core::System& system, Handle* out_handle, uint64_t parameters, uint64_t caps,
int32_t num_caps) {
UNIMPLEMENTED();
R_THROW(ResultNotImplemented);
}
Result StartProcess(Core::System& system, Handle process_handle, int32_t priority, int32_t core_id,
uint64_t main_thread_stack_size) {
UNIMPLEMENTED();
R_THROW(ResultNotImplemented);
}
Result TerminateProcess(Core::System& system, Handle process_handle) {
UNIMPLEMENTED();
R_THROW(ResultNotImplemented);
}
void ExitProcess64(Core::System& system) {
ExitProcess(system);
}
Result GetProcessId64(Core::System& system, uint64_t* out_process_id, Handle process_handle) {
R_RETURN(GetProcessId(system, out_process_id, process_handle));
}
Result GetProcessList64(Core::System& system, int32_t* out_num_processes, uint64_t out_process_ids,
int32_t max_out_count) {
R_RETURN(GetProcessList(system, out_num_processes, out_process_ids, max_out_count));
}
Result CreateProcess64(Core::System& system, Handle* out_handle, uint64_t parameters, uint64_t caps,
int32_t num_caps) {
R_RETURN(CreateProcess(system, out_handle, parameters, caps, num_caps));
}
Result StartProcess64(Core::System& system, Handle process_handle, int32_t priority,
int32_t core_id, uint64_t main_thread_stack_size) {
R_RETURN(StartProcess(system, process_handle, priority, core_id, main_thread_stack_size));
}
Result TerminateProcess64(Core::System& system, Handle process_handle) {
R_RETURN(TerminateProcess(system, process_handle));
}
Result GetProcessInfo64(Core::System& system, int64_t* out_info, Handle process_handle,
ProcessInfoType info_type) {
R_RETURN(GetProcessInfo(system, out_info, process_handle, info_type));
}
void ExitProcess64From32(Core::System& system) {
ExitProcess(system);
}
Result GetProcessId64From32(Core::System& system, uint64_t* out_process_id, Handle process_handle) {
R_RETURN(GetProcessId(system, out_process_id, process_handle));
}
Result GetProcessList64From32(Core::System& system, int32_t* out_num_processes,
uint32_t out_process_ids, int32_t max_out_count) {
R_RETURN(GetProcessList(system, out_num_processes, out_process_ids, max_out_count));
}
Result CreateProcess64From32(Core::System& system, Handle* out_handle, uint32_t parameters,
uint32_t caps, int32_t num_caps) {
R_RETURN(CreateProcess(system, out_handle, parameters, caps, num_caps));
}
Result StartProcess64From32(Core::System& system, Handle process_handle, int32_t priority,
int32_t core_id, uint64_t main_thread_stack_size) {
R_RETURN(StartProcess(system, process_handle, priority, core_id, main_thread_stack_size));
}
Result TerminateProcess64From32(Core::System& system, Handle process_handle) {
R_RETURN(TerminateProcess(system, process_handle));
}
Result GetProcessInfo64From32(Core::System& system, int64_t* out_info, Handle process_handle,
ProcessInfoType info_type) {
R_RETURN(GetProcessInfo(system, out_info, process_handle, info_type));
}
} // namespace Kernel::Svc
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