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suyu/src/core/hle/svc.cpp
Yuri Kunde Schlesner c2588403c0 HLE: Revamp error handling throrough the HLE code
All service calls in the CTR OS return result codes indicating the
success or failure of the call. Previous to this commit, Citra's HLE
emulation of services and the kernel universally either ignored errors
or returned dummy -1 error codes.

This commit makes an initial effort to provide an infrastructure for
error reporting and propagation which can be use going forward to make
HLE calls accurately return errors as the original system. A few parts
of the code have been updated to use the new system where applicable.

One part of this effort is the definition of the `ResultCode` type,
which provides facilities for constructing and parsing error codes in
the structured format used by the CTR.

The `ResultVal` type builds on `ResultCode` by providing a container for
values returned by function that can report errors. It enforces that
correct error checking will be done on function returns by preventing
the use of the return value if the function returned an error code.

Currently this change is mostly internal since errors are still
suppressed on the ARM<->HLE border, as a temporary compatibility hack.
As functionality is implemented and tested this hack can be eventually
removed.
2014-11-24 17:08:36 -02:00

474 lines
19 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include <map>
#include "common/string_util.h"
#include "common/symbols.h"
#include "core/mem_map.h"
#include "core/hle/kernel/address_arbiter.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/function_wrappers.h"
#include "core/hle/result.h"
#include "core/hle/service/service.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace SVC
namespace SVC {
enum ControlMemoryOperation {
MEMORY_OPERATION_HEAP = 0x00000003,
MEMORY_OPERATION_GSP_HEAP = 0x00010003,
};
/// Map application or GSP heap memory
static Result ControlMemory(u32* out_addr, u32 operation, u32 addr0, u32 addr1, u32 size, u32 permissions) {
DEBUG_LOG(SVC,"called operation=0x%08X, addr0=0x%08X, addr1=0x%08X, size=%08X, permissions=0x%08X",
operation, addr0, addr1, size, permissions);
switch (operation) {
// Map normal heap memory
case MEMORY_OPERATION_HEAP:
*out_addr = Memory::MapBlock_Heap(size, operation, permissions);
break;
// Map GSP heap memory
case MEMORY_OPERATION_GSP_HEAP:
*out_addr = Memory::MapBlock_HeapGSP(size, operation, permissions);
break;
// Unknown ControlMemory operation
default:
ERROR_LOG(SVC, "unknown operation=0x%08X", operation);
}
return 0;
}
/// Maps a memory block to specified address
static Result MapMemoryBlock(Handle handle, u32 addr, u32 permissions, u32 other_permissions) {
DEBUG_LOG(SVC, "called memblock=0x%08X, addr=0x%08X, mypermissions=0x%08X, otherpermission=%d",
handle, addr, permissions, other_permissions);
Kernel::MemoryPermission permissions_type = static_cast<Kernel::MemoryPermission>(permissions);
switch (permissions_type) {
case Kernel::MemoryPermission::Read:
case Kernel::MemoryPermission::Write:
case Kernel::MemoryPermission::ReadWrite:
case Kernel::MemoryPermission::DontCare:
Kernel::MapSharedMemory(handle, addr, permissions_type,
static_cast<Kernel::MemoryPermission>(other_permissions));
break;
default:
ERROR_LOG(OSHLE, "unknown permissions=0x%08X", permissions);
}
return 0;
}
/// Connect to an OS service given the port name, returns the handle to the port to out
static Result ConnectToPort(Handle* out, const char* port_name) {
Service::Interface* service = Service::g_manager->FetchFromPortName(port_name);
DEBUG_LOG(SVC, "called port_name=%s", port_name);
_assert_msg_(KERNEL, (service != nullptr), "called, but service is not implemented!");
*out = service->GetHandle();
return 0;
}
/// Synchronize to an OS service
static Result SendSyncRequest(Handle handle) {
// TODO(yuriks): ObjectPool::Get tries to check the Object type, which fails since this is a generic base Object,
// so we are forced to use GetFast and manually verify the handle.
if (!Kernel::g_object_pool.IsValid(handle)) {
return InvalidHandle(ErrorModule::Kernel).raw;
}
Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
_assert_msg_(KERNEL, (object != nullptr), "called, but kernel object is nullptr!");
DEBUG_LOG(SVC, "called handle=0x%08X(%s)", handle, object->GetTypeName().c_str());
ResultVal<bool> wait = object->SyncRequest();
if (wait.Succeeded() && *wait) {
Kernel::WaitCurrentThread(WAITTYPE_SYNCH); // TODO(bunnei): Is this correct?
}
return wait.Code().raw;
}
/// Close a handle
static Result CloseHandle(Handle handle) {
// ImplementMe
ERROR_LOG(SVC, "(UNIMPLEMENTED) called handle=0x%08X", handle);
return 0;
}
/// Wait for a handle to synchronize, timeout after the specified nanoseconds
static Result WaitSynchronization1(Handle handle, s64 nano_seconds) {
// TODO(bunnei): Do something with nano_seconds, currently ignoring this
bool wait_infinite = (nano_seconds == -1); // Used to wait until a thread has terminated
if (!Kernel::g_object_pool.IsValid(handle)) {
return InvalidHandle(ErrorModule::Kernel).raw;
}
Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handle);
_dbg_assert_(KERNEL, object != nullptr);
DEBUG_LOG(SVC, "called handle=0x%08X(%s:%s), nanoseconds=%lld", handle, object->GetTypeName().c_str(),
object->GetName().c_str(), nano_seconds);
ResultVal<bool> wait = object->WaitSynchronization();
// Check for next thread to schedule
if (wait.Succeeded() && *wait) {
HLE::Reschedule(__func__);
}
return wait.Code().raw;
}
/// Wait for the given handles to synchronize, timeout after the specified nanoseconds
static Result WaitSynchronizationN(s32* out, Handle* handles, s32 handle_count, bool wait_all,
s64 nano_seconds) {
// TODO(bunnei): Do something with nano_seconds, currently ignoring this
bool unlock_all = true;
bool wait_infinite = (nano_seconds == -1); // Used to wait until a thread has terminated
DEBUG_LOG(SVC, "called handle_count=%d, wait_all=%s, nanoseconds=%lld",
handle_count, (wait_all ? "true" : "false"), nano_seconds);
// Iterate through each handle, synchronize kernel object
for (s32 i = 0; i < handle_count; i++) {
if (!Kernel::g_object_pool.IsValid(handles[i])) {
return InvalidHandle(ErrorModule::Kernel).raw;
}
Kernel::Object* object = Kernel::g_object_pool.GetFast<Kernel::Object>(handles[i]);
DEBUG_LOG(SVC, "\thandle[%d] = 0x%08X(%s:%s)", i, handles[i], object->GetTypeName().c_str(),
object->GetName().c_str());
// TODO(yuriks): Verify how the real function behaves when an error happens here
ResultVal<bool> wait_result = object->WaitSynchronization();
bool wait = wait_result.Succeeded() && *wait_result;
if (!wait && !wait_all) {
*out = i;
return RESULT_SUCCESS.raw;
} else {
unlock_all = false;
}
}
if (wait_all && unlock_all) {
*out = handle_count;
return RESULT_SUCCESS.raw;
}
// Check for next thread to schedule
HLE::Reschedule(__func__);
return RESULT_SUCCESS.raw;
}
/// Create an address arbiter (to allocate access to shared resources)
static Result CreateAddressArbiter(u32* arbiter) {
DEBUG_LOG(SVC, "called");
Handle handle = Kernel::CreateAddressArbiter();
*arbiter = handle;
return 0;
}
/// Arbitrate address
static Result ArbitrateAddress(Handle arbiter, u32 address, u32 type, u32 value, s64 nanoseconds) {
return Kernel::ArbitrateAddress(arbiter, static_cast<Kernel::ArbitrationType>(type),
address, value).raw;
}
/// Used to output a message on a debug hardware unit - does nothing on a retail unit
static void OutputDebugString(const char* string) {
OS_LOG(SVC, "%s", string);
}
/// Get resource limit
static Result GetResourceLimit(Handle* resource_limit, Handle process) {
// With regards to proceess values:
// 0xFFFF8001 is a handle alias for the current KProcess, and 0xFFFF8000 is a handle alias for
// the current KThread.
*resource_limit = 0xDEADBEEF;
ERROR_LOG(SVC, "(UNIMPLEMENTED) called process=0x%08X", process);
return 0;
}
/// Get resource limit current values
static Result GetResourceLimitCurrentValues(s64* values, Handle resource_limit, void* names,
s32 name_count) {
ERROR_LOG(SVC, "(UNIMPLEMENTED) called resource_limit=%08X, names=%s, name_count=%d",
resource_limit, names, name_count);
Memory::Write32(Core::g_app_core->GetReg(0), 0); // Normmatt: Set used memory to 0 for now
return 0;
}
/// Creates a new thread
static Result CreateThread(u32 priority, u32 entry_point, u32 arg, u32 stack_top, u32 processor_id) {
std::string name;
if (Symbols::HasSymbol(entry_point)) {
TSymbol symbol = Symbols::GetSymbol(entry_point);
name = symbol.name;
} else {
name = Common::StringFromFormat("unknown-%08x", entry_point);
}
Handle thread = Kernel::CreateThread(name.c_str(), entry_point, priority, arg, processor_id,
stack_top);
Core::g_app_core->SetReg(1, thread);
DEBUG_LOG(SVC, "called entrypoint=0x%08X (%s), arg=0x%08X, stacktop=0x%08X, "
"threadpriority=0x%08X, processorid=0x%08X : created handle=0x%08X", entry_point,
name.c_str(), arg, stack_top, priority, processor_id, thread);
return 0;
}
/// Called when a thread exits
static u32 ExitThread() {
Handle thread = Kernel::GetCurrentThreadHandle();
DEBUG_LOG(SVC, "called, pc=0x%08X", Core::g_app_core->GetPC()); // PC = 0x0010545C
Kernel::StopThread(thread, __func__);
HLE::Reschedule(__func__);
return 0;
}
/// Gets the priority for the specified thread
static Result GetThreadPriority(s32* priority, Handle handle) {
ResultVal<u32> priority_result = Kernel::GetThreadPriority(handle);
if (priority_result.Succeeded()) {
*priority = *priority_result;
}
return priority_result.Code().raw;
}
/// Sets the priority for the specified thread
static Result SetThreadPriority(Handle handle, s32 priority) {
return Kernel::SetThreadPriority(handle, priority).raw;
}
/// Create a mutex
static Result CreateMutex(Handle* mutex, u32 initial_locked) {
*mutex = Kernel::CreateMutex((initial_locked != 0));
DEBUG_LOG(SVC, "called initial_locked=%s : created handle=0x%08X",
initial_locked ? "true" : "false", *mutex);
return 0;
}
/// Release a mutex
static Result ReleaseMutex(Handle handle) {
DEBUG_LOG(SVC, "called handle=0x%08X", handle);
ResultCode res = Kernel::ReleaseMutex(handle);
return res.raw;
}
/// Get current thread ID
static Result GetThreadId(u32* thread_id, Handle thread) {
ERROR_LOG(SVC, "(UNIMPLEMENTED) called thread=0x%08X", thread);
return 0;
}
/// Query memory
static Result QueryMemory(void* info, void* out, u32 addr) {
ERROR_LOG(SVC, "(UNIMPLEMENTED) called addr=0x%08X", addr);
return 0;
}
/// Create an event
static Result CreateEvent(Handle* evt, u32 reset_type) {
*evt = Kernel::CreateEvent((ResetType)reset_type);
DEBUG_LOG(SVC, "called reset_type=0x%08X : created handle=0x%08X",
reset_type, *evt);
return 0;
}
/// Duplicates a kernel handle
static Result DuplicateHandle(Handle* out, Handle handle) {
DEBUG_LOG(SVC, "called handle=0x%08X", handle);
// Translate kernel handles -> real handles
if (handle == Kernel::CurrentThread) {
handle = Kernel::GetCurrentThreadHandle();
}
_assert_msg_(KERNEL, (handle != Kernel::CurrentProcess),
"(UNIMPLEMENTED) process handle duplication!");
// TODO(bunnei): FixMe - This is a hack to return the handle that we were asked to duplicate.
*out = handle;
return 0;
}
/// Signals an event
static Result SignalEvent(Handle evt) {
DEBUG_LOG(SVC, "called event=0x%08X", evt);
return Kernel::SignalEvent(evt).raw;
}
/// Clears an event
static Result ClearEvent(Handle evt) {
DEBUG_LOG(SVC, "called event=0x%08X", evt);
return Kernel::ClearEvent(evt).raw;
}
/// Sleep the current thread
static void SleepThread(s64 nanoseconds) {
DEBUG_LOG(SVC, "called nanoseconds=%lld", nanoseconds);
}
/// This returns the total CPU ticks elapsed since the CPU was powered-on
static s64 GetSystemTick() {
return (s64)Core::g_app_core->GetTicks();
}
const HLE::FunctionDef SVC_Table[] = {
{0x00, nullptr, "Unknown"},
{0x01, HLE::Wrap<ControlMemory>, "ControlMemory"},
{0x02, HLE::Wrap<QueryMemory>, "QueryMemory"},
{0x03, nullptr, "ExitProcess"},
{0x04, nullptr, "GetProcessAffinityMask"},
{0x05, nullptr, "SetProcessAffinityMask"},
{0x06, nullptr, "GetProcessIdealProcessor"},
{0x07, nullptr, "SetProcessIdealProcessor"},
{0x08, HLE::Wrap<CreateThread>, "CreateThread"},
{0x09, HLE::Wrap<ExitThread>, "ExitThread"},
{0x0A, HLE::Wrap<SleepThread>, "SleepThread"},
{0x0B, HLE::Wrap<GetThreadPriority>, "GetThreadPriority"},
{0x0C, HLE::Wrap<SetThreadPriority>, "SetThreadPriority"},
{0x0D, nullptr, "GetThreadAffinityMask"},
{0x0E, nullptr, "SetThreadAffinityMask"},
{0x0F, nullptr, "GetThreadIdealProcessor"},
{0x10, nullptr, "SetThreadIdealProcessor"},
{0x11, nullptr, "GetCurrentProcessorNumber"},
{0x12, nullptr, "Run"},
{0x13, HLE::Wrap<CreateMutex>, "CreateMutex"},
{0x14, HLE::Wrap<ReleaseMutex>, "ReleaseMutex"},
{0x15, nullptr, "CreateSemaphore"},
{0x16, nullptr, "ReleaseSemaphore"},
{0x17, HLE::Wrap<CreateEvent>, "CreateEvent"},
{0x18, HLE::Wrap<SignalEvent>, "SignalEvent"},
{0x19, HLE::Wrap<ClearEvent>, "ClearEvent"},
{0x1A, nullptr, "CreateTimer"},
{0x1B, nullptr, "SetTimer"},
{0x1C, nullptr, "CancelTimer"},
{0x1D, nullptr, "ClearTimer"},
{0x1E, nullptr, "CreateMemoryBlock"},
{0x1F, HLE::Wrap<MapMemoryBlock>, "MapMemoryBlock"},
{0x20, nullptr, "UnmapMemoryBlock"},
{0x21, HLE::Wrap<CreateAddressArbiter>, "CreateAddressArbiter"},
{0x22, HLE::Wrap<ArbitrateAddress>, "ArbitrateAddress"},
{0x23, HLE::Wrap<CloseHandle>, "CloseHandle"},
{0x24, HLE::Wrap<WaitSynchronization1>, "WaitSynchronization1"},
{0x25, HLE::Wrap<WaitSynchronizationN>, "WaitSynchronizationN"},
{0x26, nullptr, "SignalAndWait"},
{0x27, HLE::Wrap<DuplicateHandle>, "DuplicateHandle"},
{0x28, HLE::Wrap<GetSystemTick>, "GetSystemTick"},
{0x29, nullptr, "GetHandleInfo"},
{0x2A, nullptr, "GetSystemInfo"},
{0x2B, nullptr, "GetProcessInfo"},
{0x2C, nullptr, "GetThreadInfo"},
{0x2D, HLE::Wrap<ConnectToPort>, "ConnectToPort"},
{0x2E, nullptr, "SendSyncRequest1"},
{0x2F, nullptr, "SendSyncRequest2"},
{0x30, nullptr, "SendSyncRequest3"},
{0x31, nullptr, "SendSyncRequest4"},
{0x32, HLE::Wrap<SendSyncRequest>, "SendSyncRequest"},
{0x33, nullptr, "OpenProcess"},
{0x34, nullptr, "OpenThread"},
{0x35, nullptr, "GetProcessId"},
{0x36, nullptr, "GetProcessIdOfThread"},
{0x37, HLE::Wrap<GetThreadId>, "GetThreadId"},
{0x38, HLE::Wrap<GetResourceLimit>, "GetResourceLimit"},
{0x39, nullptr, "GetResourceLimitLimitValues"},
{0x3A, HLE::Wrap<GetResourceLimitCurrentValues>, "GetResourceLimitCurrentValues"},
{0x3B, nullptr, "GetThreadContext"},
{0x3C, nullptr, "Break"},
{0x3D, HLE::Wrap<OutputDebugString>, "OutputDebugString"},
{0x3E, nullptr, "ControlPerformanceCounter"},
{0x3F, nullptr, "Unknown"},
{0x40, nullptr, "Unknown"},
{0x41, nullptr, "Unknown"},
{0x42, nullptr, "Unknown"},
{0x43, nullptr, "Unknown"},
{0x44, nullptr, "Unknown"},
{0x45, nullptr, "Unknown"},
{0x46, nullptr, "Unknown"},
{0x47, nullptr, "CreatePort"},
{0x48, nullptr, "CreateSessionToPort"},
{0x49, nullptr, "CreateSession"},
{0x4A, nullptr, "AcceptSession"},
{0x4B, nullptr, "ReplyAndReceive1"},
{0x4C, nullptr, "ReplyAndReceive2"},
{0x4D, nullptr, "ReplyAndReceive3"},
{0x4E, nullptr, "ReplyAndReceive4"},
{0x4F, nullptr, "ReplyAndReceive"},
{0x50, nullptr, "BindInterrupt"},
{0x51, nullptr, "UnbindInterrupt"},
{0x52, nullptr, "InvalidateProcessDataCache"},
{0x53, nullptr, "StoreProcessDataCache"},
{0x54, nullptr, "FlushProcessDataCache"},
{0x55, nullptr, "StartInterProcessDma"},
{0x56, nullptr, "StopDma"},
{0x57, nullptr, "GetDmaState"},
{0x58, nullptr, "RestartDma"},
{0x59, nullptr, "Unknown"},
{0x5A, nullptr, "Unknown"},
{0x5B, nullptr, "Unknown"},
{0x5C, nullptr, "Unknown"},
{0x5D, nullptr, "Unknown"},
{0x5E, nullptr, "Unknown"},
{0x5F, nullptr, "Unknown"},
{0x60, nullptr, "DebugActiveProcess"},
{0x61, nullptr, "BreakDebugProcess"},
{0x62, nullptr, "TerminateDebugProcess"},
{0x63, nullptr, "GetProcessDebugEvent"},
{0x64, nullptr, "ContinueDebugEvent"},
{0x65, nullptr, "GetProcessList"},
{0x66, nullptr, "GetThreadList"},
{0x67, nullptr, "GetDebugThreadContext"},
{0x68, nullptr, "SetDebugThreadContext"},
{0x69, nullptr, "QueryDebugProcessMemory"},
{0x6A, nullptr, "ReadProcessMemory"},
{0x6B, nullptr, "WriteProcessMemory"},
{0x6C, nullptr, "SetHardwareBreakPoint"},
{0x6D, nullptr, "GetDebugThreadParam"},
{0x6E, nullptr, "Unknown"},
{0x6F, nullptr, "Unknown"},
{0x70, nullptr, "ControlProcessMemory"},
{0x71, nullptr, "MapProcessMemory"},
{0x72, nullptr, "UnmapProcessMemory"},
{0x73, nullptr, "Unknown"},
{0x74, nullptr, "Unknown"},
{0x75, nullptr, "Unknown"},
{0x76, nullptr, "TerminateProcess"},
{0x77, nullptr, "Unknown"},
{0x78, nullptr, "CreateResourceLimit"},
{0x79, nullptr, "Unknown"},
{0x7A, nullptr, "Unknown"},
{0x7B, nullptr, "Unknown"},
{0x7C, nullptr, "KernelSetState"},
{0x7D, nullptr, "QueryProcessMemory"},
};
void Register() {
HLE::RegisterModule("SVC_Table", ARRAY_SIZE(SVC_Table), SVC_Table);
}
} // namespace