mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-09-19 14:18:51 +02:00
86b42f176a
Allows passing data into and out of the same registers when calling via the Kernel ABI. This allows implementing specific supervisor calls like "CallSecureMonitor", that expect their args and results in the same registers.
372 lines
15 KiB
C#
372 lines
15 KiB
C#
using ARMeilleure.State;
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using Ryujinx.Common.Logging;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Reflection.Emit;
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namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
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{
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static class SvcTable
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{
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private const int SvcFuncMaxArguments = 8;
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private static Dictionary<int, string> _svcFuncs64;
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private static Action<SvcHandler, IExecutionContext>[] _svcTable64;
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static SvcTable()
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{
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_svcFuncs64 = new Dictionary<int, string>
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{
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{ 0x01, nameof(SvcHandler.SetHeapSize64) },
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{ 0x03, nameof(SvcHandler.SetMemoryAttribute64) },
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{ 0x04, nameof(SvcHandler.MapMemory64) },
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{ 0x05, nameof(SvcHandler.UnmapMemory64) },
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{ 0x06, nameof(SvcHandler.QueryMemory64) },
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{ 0x07, nameof(SvcHandler.ExitProcess64) },
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{ 0x08, nameof(SvcHandler.CreateThread64) },
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{ 0x09, nameof(SvcHandler.StartThread64) },
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{ 0x0a, nameof(SvcHandler.ExitThread64) },
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{ 0x0b, nameof(SvcHandler.SleepThread64) },
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{ 0x0c, nameof(SvcHandler.GetThreadPriority64) },
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{ 0x0d, nameof(SvcHandler.SetThreadPriority64) },
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{ 0x0e, nameof(SvcHandler.GetThreadCoreMask64) },
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{ 0x0f, nameof(SvcHandler.SetThreadCoreMask64) },
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{ 0x10, nameof(SvcHandler.GetCurrentProcessorNumber64) },
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{ 0x11, nameof(SvcHandler.SignalEvent64) },
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{ 0x12, nameof(SvcHandler.ClearEvent64) },
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{ 0x13, nameof(SvcHandler.MapSharedMemory64) },
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{ 0x14, nameof(SvcHandler.UnmapSharedMemory64) },
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{ 0x15, nameof(SvcHandler.CreateTransferMemory64) },
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{ 0x16, nameof(SvcHandler.CloseHandle64) },
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{ 0x17, nameof(SvcHandler.ResetSignal64) },
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{ 0x18, nameof(SvcHandler.WaitSynchronization64) },
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{ 0x19, nameof(SvcHandler.CancelSynchronization64) },
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{ 0x1a, nameof(SvcHandler.ArbitrateLock64) },
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{ 0x1b, nameof(SvcHandler.ArbitrateUnlock64) },
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{ 0x1c, nameof(SvcHandler.WaitProcessWideKeyAtomic64) },
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{ 0x1d, nameof(SvcHandler.SignalProcessWideKey64) },
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{ 0x1e, nameof(SvcHandler.GetSystemTick64) },
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{ 0x1f, nameof(SvcHandler.ConnectToNamedPort64) },
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{ 0x21, nameof(SvcHandler.SendSyncRequest64) },
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{ 0x22, nameof(SvcHandler.SendSyncRequestWithUserBuffer64) },
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{ 0x24, nameof(SvcHandler.GetProcessId64) },
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{ 0x25, nameof(SvcHandler.GetThreadId64) },
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{ 0x26, nameof(SvcHandler.Break64) },
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{ 0x27, nameof(SvcHandler.OutputDebugString64) },
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{ 0x29, nameof(SvcHandler.GetInfo64) },
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{ 0x2c, nameof(SvcHandler.MapPhysicalMemory64) },
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{ 0x2d, nameof(SvcHandler.UnmapPhysicalMemory64) },
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{ 0x32, nameof(SvcHandler.SetThreadActivity64) },
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{ 0x33, nameof(SvcHandler.GetThreadContext364) },
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{ 0x34, nameof(SvcHandler.WaitForAddress64) },
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{ 0x35, nameof(SvcHandler.SignalToAddress64) },
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{ 0x40, nameof(SvcHandler.CreateSession64) },
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{ 0x41, nameof(SvcHandler.AcceptSession64) },
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{ 0x43, nameof(SvcHandler.ReplyAndReceive64) },
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{ 0x45, nameof(SvcHandler.CreateEvent64) },
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{ 0x65, nameof(SvcHandler.GetProcessList64) },
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{ 0x6f, nameof(SvcHandler.GetSystemInfo64) },
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{ 0x70, nameof(SvcHandler.CreatePort64) },
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{ 0x71, nameof(SvcHandler.ManageNamedPort64) },
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{ 0x72, nameof(SvcHandler.ConnectToPort64) },
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{ 0x73, nameof(SvcHandler.SetProcessMemoryPermission64) },
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{ 0x77, nameof(SvcHandler.MapProcessCodeMemory64) },
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{ 0x78, nameof(SvcHandler.UnmapProcessCodeMemory64) }
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};
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_svcTable64 = new Action<SvcHandler, IExecutionContext>[0x80];
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}
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public static Action<SvcHandler, IExecutionContext> GetSvcFunc(int svcId)
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{
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if (_svcTable64[svcId] != null)
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{
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return _svcTable64[svcId];
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}
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if (_svcFuncs64.TryGetValue(svcId, out string svcName))
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{
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return _svcTable64[svcId] = GenerateMethod(svcName);
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}
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return null;
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}
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private static Action<SvcHandler, IExecutionContext> GenerateMethod(string svcName)
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{
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Type[] argTypes = new Type[] { typeof(SvcHandler), typeof(IExecutionContext) };
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DynamicMethod method = new DynamicMethod(svcName, null, argTypes);
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MethodInfo methodInfo = typeof(SvcHandler).GetMethod(svcName);
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ParameterInfo[] methodArgs = methodInfo.GetParameters();
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if (methodArgs.Length > SvcFuncMaxArguments)
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{
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throw new InvalidOperationException($"Method \"{svcName}\" has too many arguments, max is 8.");
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}
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ILGenerator generator = method.GetILGenerator();
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void ConvertToArgType(Type sourceType)
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{
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CheckIfTypeIsSupported(sourceType, svcName);
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switch (Type.GetTypeCode(sourceType))
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{
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case TypeCode.UInt32: generator.Emit(OpCodes.Conv_U4); break;
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case TypeCode.Int32: generator.Emit(OpCodes.Conv_I4); break;
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case TypeCode.UInt16: generator.Emit(OpCodes.Conv_U2); break;
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case TypeCode.Int16: generator.Emit(OpCodes.Conv_I2); break;
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case TypeCode.Byte: generator.Emit(OpCodes.Conv_U1); break;
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case TypeCode.SByte: generator.Emit(OpCodes.Conv_I1); break;
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case TypeCode.Boolean:
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generator.Emit(OpCodes.Conv_I4);
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generator.Emit(OpCodes.Ldc_I4_1);
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generator.Emit(OpCodes.And);
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break;
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}
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}
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void ConvertToFieldType(Type sourceType)
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{
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CheckIfTypeIsSupported(sourceType, svcName);
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switch (Type.GetTypeCode(sourceType))
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{
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case TypeCode.UInt32:
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case TypeCode.Int32:
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case TypeCode.UInt16:
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case TypeCode.Int16:
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case TypeCode.Byte:
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case TypeCode.SByte:
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case TypeCode.Boolean:
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generator.Emit(OpCodes.Conv_U8);
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break;
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}
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}
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// For functions returning output values, the first registers
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// are used to hold pointers where the value will be stored,
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// so they can't be used to pass argument and we must
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// skip them.
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int byRefArgsCount = 0;
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for (int index = 0; index < methodArgs.Length; index++)
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{
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if (methodArgs[index].ParameterType.IsByRef)
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{
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byRefArgsCount++;
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}
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}
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BindingFlags staticNonPublic = BindingFlags.NonPublic | BindingFlags.Static;
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// Print all the arguments for debugging purposes.
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int inputArgsCount = methodArgs.Length - byRefArgsCount;
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if (inputArgsCount != 0)
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{
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generator.Emit(OpCodes.Ldc_I4, inputArgsCount);
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generator.Emit(OpCodes.Newarr, typeof(object));
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string argsFormat = svcName;
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for (int index = 0; index < inputArgsCount; index++)
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{
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argsFormat += $" {methodArgs[index].Name}: 0x{{{index}:X8}},";
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generator.Emit(OpCodes.Dup);
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generator.Emit(OpCodes.Ldc_I4, index);
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, byRefArgsCount + index);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.GetX));
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generator.Emit(OpCodes.Call, info);
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generator.Emit(OpCodes.Box, typeof(ulong));
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generator.Emit(OpCodes.Stelem_Ref);
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}
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argsFormat = argsFormat.Substring(0, argsFormat.Length - 1);
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generator.Emit(OpCodes.Ldstr, argsFormat);
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}
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else
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{
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generator.Emit(OpCodes.Ldnull);
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generator.Emit(OpCodes.Ldstr, svcName);
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}
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MethodInfo printArgsMethod = typeof(SvcTable).GetMethod(nameof(PrintArguments), staticNonPublic);
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generator.Emit(OpCodes.Call, printArgsMethod);
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// Call the SVC function handler.
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generator.Emit(OpCodes.Ldarg_0);
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List<LocalBuilder> locals = new List<LocalBuilder>();
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for (int index = 0; index < methodArgs.Length; index++)
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{
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Type argType = methodArgs[index].ParameterType;
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if (argType.IsByRef)
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{
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argType = argType.GetElementType();
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LocalBuilder local = generator.DeclareLocal(argType);
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locals.Add(local);
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if (!methodArgs[index].IsOut)
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{
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, index);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.GetX));
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generator.Emit(OpCodes.Call, info);
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ConvertToArgType(argType);
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generator.Emit(OpCodes.Stloc, local);
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}
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generator.Emit(OpCodes.Ldloca, local);
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}
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else
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{
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, byRefArgsCount + index);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.GetX));
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generator.Emit(OpCodes.Call, info);
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ConvertToArgType(argType);
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}
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}
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generator.Emit(OpCodes.Call, methodInfo);
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int outRegIndex = 0;
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Type retType = methodInfo.ReturnType;
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// Print result code.
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if (retType == typeof(KernelResult))
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{
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MethodInfo printResultMethod = typeof(SvcTable).GetMethod(nameof(PrintResult), staticNonPublic);
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generator.Emit(OpCodes.Dup);
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generator.Emit(OpCodes.Ldstr, svcName);
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generator.Emit(OpCodes.Call, printResultMethod);
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}
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// Save return value into register X0 (when the method has a return value).
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if (retType != typeof(void))
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{
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CheckIfTypeIsSupported(retType, svcName);
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LocalBuilder tempLocal = generator.DeclareLocal(retType);
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generator.Emit(OpCodes.Stloc, tempLocal);
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, outRegIndex++);
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generator.Emit(OpCodes.Ldloc, tempLocal);
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ConvertToFieldType(retType);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.SetX));
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generator.Emit(OpCodes.Call, info);
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}
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for (int index = 0; index < locals.Count; index++)
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{
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, outRegIndex++);
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generator.Emit(OpCodes.Ldloc, locals[index]);
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ConvertToFieldType(locals[index].LocalType);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.SetX));
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generator.Emit(OpCodes.Call, info);
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}
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// Zero out the remaining unused registers.
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while (outRegIndex < SvcFuncMaxArguments)
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{
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generator.Emit(OpCodes.Ldarg_1);
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generator.Emit(OpCodes.Ldc_I4, outRegIndex++);
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generator.Emit(OpCodes.Ldc_I8, 0L);
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MethodInfo info = typeof(IExecutionContext).GetMethod(nameof(IExecutionContext.SetX));
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generator.Emit(OpCodes.Call, info);
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}
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generator.Emit(OpCodes.Ret);
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return (Action<SvcHandler, IExecutionContext>)method.CreateDelegate(typeof(Action<SvcHandler, IExecutionContext>));
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}
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private static void CheckIfTypeIsSupported(Type type, string svcName)
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{
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switch (Type.GetTypeCode(type))
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{
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case TypeCode.UInt64:
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case TypeCode.Int64:
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case TypeCode.UInt32:
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case TypeCode.Int32:
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case TypeCode.UInt16:
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case TypeCode.Int16:
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case TypeCode.Byte:
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case TypeCode.SByte:
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case TypeCode.Boolean:
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return;
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}
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throw new InvalidSvcException($"Method \"{svcName}\" has a invalid ref type \"{type.Name}\".");
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}
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private static void PrintArguments(object[] argValues, string formatOrSvcName)
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{
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if (argValues != null)
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{
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Logger.PrintDebug(LogClass.KernelSvc, string.Format(formatOrSvcName, argValues));
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}
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else
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{
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Logger.PrintDebug(LogClass.KernelSvc, formatOrSvcName);
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}
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}
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private static void PrintResult(KernelResult result, string svcName)
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{
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if (result != KernelResult.Success &&
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result != KernelResult.TimedOut &&
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result != KernelResult.Cancelled &&
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result != KernelResult.InvalidState)
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{
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Logger.PrintWarning(LogClass.KernelSvc, $"{svcName} returned error {result}.");
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}
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else
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{
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Logger.PrintDebug(LogClass.KernelSvc, $"{svcName} returned result {result}.");
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}
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}
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}
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}
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