1 files changed, 465 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallTable.cs b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallTable.cs
new file mode 100644
index 00000000..043a54af
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SyscallTable.cs
@@ -0,0 +1,465 @@
+using ARMeilleure.State;
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.Kernel.Common;
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Reflection.Emit;
+
+namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
+{
+    static class SyscallTable
+    {
+        private const int SvcFuncMaxArguments64 = 8;
+        private const int SvcFuncMaxArguments32 = 4;
+        private const int SvcMax                = 0x80;
+
+        public static Action<Syscall32, ExecutionContext>[] SvcTable32 { get; }
+        public static Action<Syscall64, ExecutionContext>[] SvcTable64 { get; }
+
+        static SyscallTable()
+        {
+            SvcTable32 = new Action<Syscall32, ExecutionContext>[SvcMax];
+            SvcTable64 = new Action<Syscall64, ExecutionContext>[SvcMax];
+
+            Dictionary<int, string> svcFuncs64 = new Dictionary<int, string>
+            {
+                { 0x01, nameof(Syscall64.SetHeapSize64)                   },
+                { 0x03, nameof(Syscall64.SetMemoryAttribute64)            },
+                { 0x04, nameof(Syscall64.MapMemory64)                     },
+                { 0x05, nameof(Syscall64.UnmapMemory64)                   },
+                { 0x06, nameof(Syscall64.QueryMemory64)                   },
+                { 0x07, nameof(Syscall64.ExitProcess64)                   },
+                { 0x08, nameof(Syscall64.CreateThread64)                  },
+                { 0x09, nameof(Syscall64.StartThread64)                   },
+                { 0x0a, nameof(Syscall64.ExitThread64)                    },
+                { 0x0b, nameof(Syscall64.SleepThread64)                   },
+                { 0x0c, nameof(Syscall64.GetThreadPriority64)             },
+                { 0x0d, nameof(Syscall64.SetThreadPriority64)             },
+                { 0x0e, nameof(Syscall64.GetThreadCoreMask64)             },
+                { 0x0f, nameof(Syscall64.SetThreadCoreMask64)             },
+                { 0x10, nameof(Syscall64.GetCurrentProcessorNumber64)     },
+                { 0x11, nameof(Syscall64.SignalEvent64)                   },
+                { 0x12, nameof(Syscall64.ClearEvent64)                    },
+                { 0x13, nameof(Syscall64.MapSharedMemory64)               },
+                { 0x14, nameof(Syscall64.UnmapSharedMemory64)             },
+                { 0x15, nameof(Syscall64.CreateTransferMemory64)          },
+                { 0x16, nameof(Syscall64.CloseHandle64)                   },
+                { 0x17, nameof(Syscall64.ResetSignal64)                   },
+                { 0x18, nameof(Syscall64.WaitSynchronization64)           },
+                { 0x19, nameof(Syscall64.CancelSynchronization64)         },
+                { 0x1a, nameof(Syscall64.ArbitrateLock64)                 },
+                { 0x1b, nameof(Syscall64.ArbitrateUnlock64)               },
+                { 0x1c, nameof(Syscall64.WaitProcessWideKeyAtomic64)      },
+                { 0x1d, nameof(Syscall64.SignalProcessWideKey64)          },
+                { 0x1e, nameof(Syscall64.GetSystemTick64)                 },
+                { 0x1f, nameof(Syscall64.ConnectToNamedPort64)            },
+                { 0x21, nameof(Syscall64.SendSyncRequest64)               },
+                { 0x22, nameof(Syscall64.SendSyncRequestWithUserBuffer64) },
+                { 0x24, nameof(Syscall64.GetProcessId64)                  },
+                { 0x25, nameof(Syscall64.GetThreadId64)                   },
+                { 0x26, nameof(Syscall64.Break64)                         },
+                { 0x27, nameof(Syscall64.OutputDebugString64)             },
+                { 0x29, nameof(Syscall64.GetInfo64)                       },
+                { 0x2c, nameof(Syscall64.MapPhysicalMemory64)             },
+                { 0x2d, nameof(Syscall64.UnmapPhysicalMemory64)           },
+                { 0x32, nameof(Syscall64.SetThreadActivity64)             },
+                { 0x33, nameof(Syscall64.GetThreadContext364)             },
+                { 0x34, nameof(Syscall64.WaitForAddress64)                },
+                { 0x35, nameof(Syscall64.SignalToAddress64)               },
+                { 0x40, nameof(Syscall64.CreateSession64)                 },
+                { 0x41, nameof(Syscall64.AcceptSession64)                 },
+                { 0x43, nameof(Syscall64.ReplyAndReceive64)               },
+                { 0x45, nameof(Syscall64.CreateEvent64)                   },
+                { 0x65, nameof(Syscall64.GetProcessList64)                },
+                { 0x6f, nameof(Syscall64.GetSystemInfo64)                 },
+                { 0x70, nameof(Syscall64.CreatePort64)                    },
+                { 0x71, nameof(Syscall64.ManageNamedPort64)               },
+                { 0x72, nameof(Syscall64.ConnectToPort64)                 },
+                { 0x73, nameof(Syscall64.SetProcessMemoryPermission64)    },
+                { 0x77, nameof(Syscall64.MapProcessCodeMemory64)          },
+                { 0x78, nameof(Syscall64.UnmapProcessCodeMemory64)        },
+                { 0x7B, nameof(Syscall64.TerminateProcess64)              }
+            };
+
+            foreach (KeyValuePair<int, string> value in svcFuncs64)
+            {
+                SvcTable64[value.Key] = GenerateMethod<Syscall64>(value.Value, SvcFuncMaxArguments64);
+            }
+
+            Dictionary<int, string> svcFuncs32 = new Dictionary<int, string>
+            {
+                { 0x01, nameof(Syscall32.SetHeapSize32)                   },
+                { 0x03, nameof(Syscall32.SetMemoryAttribute32)            },
+                { 0x04, nameof(Syscall32.MapMemory32)                     },
+                { 0x05, nameof(Syscall32.UnmapMemory32)                   },
+                { 0x06, nameof(Syscall32.QueryMemory32)                   },
+                { 0x07, nameof(Syscall32.ExitProcess32)                   },
+                { 0x08, nameof(Syscall32.CreateThread32)                  },
+                { 0x09, nameof(Syscall32.StartThread32)                   },
+                { 0x0a, nameof(Syscall32.ExitThread32)                    },
+                { 0x0b, nameof(Syscall32.SleepThread32)                   },
+                { 0x0c, nameof(Syscall32.GetThreadPriority32)             },
+                { 0x0d, nameof(Syscall32.SetThreadPriority32)             },
+                { 0x0e, nameof(Syscall32.GetThreadCoreMask32)             },
+                { 0x0f, nameof(Syscall32.SetThreadCoreMask32)             },
+                { 0x10, nameof(Syscall32.GetCurrentProcessorNumber32)     },
+                { 0x11, nameof(Syscall32.SignalEvent32)                   },
+                { 0x12, nameof(Syscall32.ClearEvent32)                    },
+                { 0x13, nameof(Syscall32.MapSharedMemory32)               },
+                { 0x14, nameof(Syscall32.UnmapSharedMemory32)             },
+                { 0x15, nameof(Syscall32.CreateTransferMemory32)          },
+                { 0x16, nameof(Syscall32.CloseHandle32)                   },
+                { 0x17, nameof(Syscall32.ResetSignal32)                   },
+                { 0x18, nameof(Syscall32.WaitSynchronization32)           },
+                { 0x19, nameof(Syscall32.CancelSynchronization32)         },
+                { 0x1a, nameof(Syscall32.ArbitrateLock32)                 },
+                { 0x1b, nameof(Syscall32.ArbitrateUnlock32)               },
+                { 0x1c, nameof(Syscall32.WaitProcessWideKeyAtomic32)      },
+                { 0x1d, nameof(Syscall32.SignalProcessWideKey32)          },
+                { 0x1e, nameof(Syscall32.GetSystemTick32)                 },
+                { 0x1f, nameof(Syscall32.ConnectToNamedPort32)            },
+                { 0x21, nameof(Syscall32.SendSyncRequest32)               },
+                { 0x22, nameof(Syscall32.SendSyncRequestWithUserBuffer32) },
+                { 0x24, nameof(Syscall32.GetProcessId32)                  },
+                { 0x25, nameof(Syscall32.GetThreadId32)                   },
+                { 0x26, nameof(Syscall32.Break32)                         },
+                { 0x27, nameof(Syscall32.OutputDebugString32)             },
+                { 0x29, nameof(Syscall32.GetInfo32)                       },
+                { 0x2c, nameof(Syscall32.MapPhysicalMemory32)             },
+                { 0x2d, nameof(Syscall32.UnmapPhysicalMemory32)           },
+                { 0x32, nameof(Syscall32.SetThreadActivity32)             },
+                { 0x33, nameof(Syscall32.GetThreadContext332)             },
+                { 0x34, nameof(Syscall32.WaitForAddress32)                },
+                { 0x35, nameof(Syscall32.SignalToAddress32)               },
+                { 0x40, nameof(Syscall32.CreateSession32)                 },
+                { 0x41, nameof(Syscall32.AcceptSession32)                 },
+                { 0x43, nameof(Syscall32.ReplyAndReceive32)               },
+                { 0x45, nameof(Syscall32.CreateEvent32)                   },
+                { 0x5F, nameof(Syscall32.FlushProcessDataCache32)         },
+                { 0x65, nameof(Syscall32.GetProcessList32)                },
+                { 0x6f, nameof(Syscall32.GetSystemInfo32)                 },
+                { 0x70, nameof(Syscall32.CreatePort32)                    },
+                { 0x71, nameof(Syscall32.ManageNamedPort32)               },
+                { 0x72, nameof(Syscall32.ConnectToPort32)                 },
+                { 0x73, nameof(Syscall32.SetProcessMemoryPermission32)    },
+                { 0x77, nameof(Syscall32.MapProcessCodeMemory32)          },
+                { 0x78, nameof(Syscall32.UnmapProcessCodeMemory32)        },
+                { 0x7B, nameof(Syscall32.TerminateProcess32)              }
+            };
+
+            foreach (KeyValuePair<int, string> value in svcFuncs32)
+            {
+                SvcTable32[value.Key] = GenerateMethod<Syscall32>(value.Value, SvcFuncMaxArguments32);
+            }
+        }
+
+        private static Action<T, ExecutionContext> GenerateMethod<T>(string svcName, int registerCleanCount)
+        {
+            Type[] argTypes = new Type[] { typeof(T), typeof(ExecutionContext) };
+
+            DynamicMethod method = new DynamicMethod(svcName, null, argTypes);
+
+            MethodInfo methodInfo = typeof(T).GetMethod(svcName);
+
+            ParameterInfo[] methodArgs = methodInfo.GetParameters();
+
+            ILGenerator generator = method.GetILGenerator();
+
+            void ConvertToArgType(Type sourceType)
+            {
+                CheckIfTypeIsSupported(sourceType, svcName);
+
+                switch (Type.GetTypeCode(sourceType))
+                {
+                    case TypeCode.UInt32: generator.Emit(OpCodes.Conv_U4); break;
+                    case TypeCode.Int32:  generator.Emit(OpCodes.Conv_I4); break;
+                    case TypeCode.UInt16: generator.Emit(OpCodes.Conv_U2); break;
+                    case TypeCode.Int16:  generator.Emit(OpCodes.Conv_I2); break;
+                    case TypeCode.Byte:   generator.Emit(OpCodes.Conv_U1); break;
+                    case TypeCode.SByte:  generator.Emit(OpCodes.Conv_I1); break;
+
+                    case TypeCode.Boolean:
+                        generator.Emit(OpCodes.Conv_I4);
+                        generator.Emit(OpCodes.Ldc_I4_1);
+                        generator.Emit(OpCodes.And);
+                        break;
+                }
+            }
+
+            void ConvertToFieldType(Type sourceType)
+            {
+                CheckIfTypeIsSupported(sourceType, svcName);
+
+                switch (Type.GetTypeCode(sourceType))
+                {
+                    case TypeCode.UInt32:
+                    case TypeCode.Int32:
+                    case TypeCode.UInt16:
+                    case TypeCode.Int16:
+                    case TypeCode.Byte:
+                    case TypeCode.SByte:
+                    case TypeCode.Boolean:
+                        generator.Emit(OpCodes.Conv_U8);
+                        break;
+                }
+            }
+
+            RAttribute GetRegisterAttribute(ParameterInfo parameterInfo)
+            {
+                RAttribute argumentAttribute = (RAttribute)parameterInfo.GetCustomAttribute(typeof(RAttribute));
+
+                if (argumentAttribute == null)
+                {
+                    throw new InvalidOperationException($"Method \"{svcName}\" is missing a {typeof(RAttribute).Name} attribute on parameter \"{parameterInfo.Name}\"");
+                }
+
+                return argumentAttribute;
+            }
+
+            // For functions returning output values, the first registers
+            // are used to hold pointers where the value will be stored,
+            // so they can't be used to pass argument and we must
+            // skip them.
+            int byRefArgsCount = 0;
+
+            for (int index = 0; index < methodArgs.Length; index++)
+            {
+                if (methodArgs[index].ParameterType.IsByRef)
+                {
+                    byRefArgsCount++;
+                }
+            }
+
+            BindingFlags staticNonPublic = BindingFlags.NonPublic | BindingFlags.Static;
+
+            // Print all the arguments for debugging purposes.
+            int inputArgsCount = methodArgs.Length - byRefArgsCount;
+
+            if (inputArgsCount != 0)
+            {
+                generator.Emit(OpCodes.Ldc_I4, inputArgsCount);
+
+                generator.Emit(OpCodes.Newarr, typeof(object));
+
+                string argsFormat = svcName;
+
+                for (int index = 0; index < methodArgs.Length; index++)
+                {
+                    Type argType = methodArgs[index].ParameterType;
+
+                    // Ignore out argument for printing
+                    if (argType.IsByRef)
+                    {
+                        continue;
+                    }
+
+                    RAttribute registerAttribute = GetRegisterAttribute(methodArgs[index]);
+
+                    argsFormat += $" {methodArgs[index].Name}: 0x{{{index}:X8}},";
+
+                    generator.Emit(OpCodes.Dup);
+                    generator.Emit(OpCodes.Ldc_I4, index);
+
+                    generator.Emit(OpCodes.Ldarg_1);
+                    generator.Emit(OpCodes.Ldc_I4, registerAttribute.Index);
+
+                    MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.GetX));
+
+                    generator.Emit(OpCodes.Call, info);
+
+                    generator.Emit(OpCodes.Box, typeof(ulong));
+
+                    generator.Emit(OpCodes.Stelem_Ref);
+                }
+
+                argsFormat = argsFormat.Substring(0, argsFormat.Length - 1);
+
+               generator.Emit(OpCodes.Ldstr, argsFormat);
+            }
+            else
+            {
+                generator.Emit(OpCodes.Ldnull);
+
+                generator.Emit(OpCodes.Ldstr, svcName);
+            }
+
+            MethodInfo printArgsMethod = typeof(SyscallTable).GetMethod(nameof(PrintArguments), staticNonPublic);
+
+            generator.Emit(OpCodes.Call, printArgsMethod);
+
+            // Call the SVC function handler.
+            generator.Emit(OpCodes.Ldarg_0);
+
+            List<(LocalBuilder, RAttribute)> locals = new List<(LocalBuilder, RAttribute)>();
+
+            for (int index = 0; index < methodArgs.Length; index++)
+            {
+                Type argType = methodArgs[index].ParameterType;
+                RAttribute registerAttribute = GetRegisterAttribute(methodArgs[index]);
+
+                if (argType.IsByRef)
+                {
+                    argType = argType.GetElementType();
+
+                    LocalBuilder local = generator.DeclareLocal(argType);
+
+                    locals.Add((local, registerAttribute));
+
+                    if (!methodArgs[index].IsOut)
+                    {
+                        generator.Emit(OpCodes.Ldarg_1);
+                        generator.Emit(OpCodes.Ldc_I4, registerAttribute.Index);
+
+                        MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.GetX));
+
+                        generator.Emit(OpCodes.Call, info);
+
+                        ConvertToArgType(argType);
+
+                        generator.Emit(OpCodes.Stloc, local);
+                    }
+
+                    generator.Emit(OpCodes.Ldloca, local);
+                }
+                else
+                {
+                    generator.Emit(OpCodes.Ldarg_1);
+                    generator.Emit(OpCodes.Ldc_I4, registerAttribute.Index);
+
+                    MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.GetX));
+
+                    generator.Emit(OpCodes.Call, info);
+
+                    ConvertToArgType(argType);
+                }
+            }
+
+            generator.Emit(OpCodes.Call, methodInfo);
+
+            Type retType = methodInfo.ReturnType;
+
+            // Print result code.
+            if (retType == typeof(KernelResult))
+            {
+                MethodInfo printResultMethod = typeof(SyscallTable).GetMethod(nameof(PrintResult), staticNonPublic);
+
+                generator.Emit(OpCodes.Dup);
+                generator.Emit(OpCodes.Ldstr, svcName);
+                generator.Emit(OpCodes.Call, printResultMethod);
+            }
+
+            uint registerInUse = 0;
+
+            // Save return value into register X0 (when the method has a return value).
+            if (retType != typeof(void))
+            {
+                CheckIfTypeIsSupported(retType, svcName);
+
+                LocalBuilder tempLocal = generator.DeclareLocal(retType);
+
+                generator.Emit(OpCodes.Stloc, tempLocal);
+                generator.Emit(OpCodes.Ldarg_1);
+                generator.Emit(OpCodes.Ldc_I4, 0);
+                generator.Emit(OpCodes.Ldloc, tempLocal);
+
+                ConvertToFieldType(retType);
+
+                MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.SetX));
+
+                generator.Emit(OpCodes.Call, info);
+
+                registerInUse |= 1u << 0;
+            }
+
+            for (int index = 0; index < locals.Count; index++)
+            {
+                (LocalBuilder local, RAttribute attribute) = locals[index];
+
+                if ((registerInUse & (1u << attribute.Index)) != 0)
+                {
+                    throw new InvalidSvcException($"Method \"{svcName}\" has conflicting output values at register index \"{attribute.Index}\".");
+                }
+
+                generator.Emit(OpCodes.Ldarg_1);
+                generator.Emit(OpCodes.Ldc_I4, attribute.Index);
+                generator.Emit(OpCodes.Ldloc, local);
+
+                ConvertToFieldType(local.LocalType);
+
+                MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.SetX));
+
+                generator.Emit(OpCodes.Call, info);
+
+                registerInUse |= 1u << attribute.Index;
+            }
+
+            // Zero out the remaining unused registers.
+            for (int i = 0; i < registerCleanCount; i++)
+            {
+                if ((registerInUse & (1u << i)) != 0)
+                {
+                    continue;
+                }
+
+                generator.Emit(OpCodes.Ldarg_1);
+                generator.Emit(OpCodes.Ldc_I4, i);
+                generator.Emit(OpCodes.Ldc_I8, 0L);
+
+                MethodInfo info = typeof(ExecutionContext).GetMethod(nameof(ExecutionContext.SetX));
+
+                generator.Emit(OpCodes.Call, info);
+            }
+
+            generator.Emit(OpCodes.Ret);
+
+            return (Action<T, ExecutionContext>)method.CreateDelegate(typeof(Action<T, ExecutionContext>));
+        }
+
+        private static void CheckIfTypeIsSupported(Type type, string svcName)
+        {
+            switch (Type.GetTypeCode(type))
+            {
+                case TypeCode.UInt64:
+                case TypeCode.Int64:
+                case TypeCode.UInt32:
+                case TypeCode.Int32:
+                case TypeCode.UInt16:
+                case TypeCode.Int16:
+                case TypeCode.Byte:
+                case TypeCode.SByte:
+                case TypeCode.Boolean:
+                    return;
+            }
+
+            throw new InvalidSvcException($"Method \"{svcName}\" has a invalid ref type \"{type.Name}\".");
+        }
+
+        private static void PrintArguments(object[] argValues, string formatOrSvcName)
+        {
+            if (argValues != null)
+            {
+                Logger.PrintDebug(LogClass.KernelSvc, string.Format(formatOrSvcName, argValues));
+            }
+            else
+            {
+                Logger.PrintDebug(LogClass.KernelSvc, formatOrSvcName);
+            }
+        }
+
+        private static void PrintResult(KernelResult result, string svcName)
+        {
+            if (result != KernelResult.Success   &&
+                result != KernelResult.TimedOut  &&
+                result != KernelResult.Cancelled &&
+                result != KernelResult.InvalidState)
+            {
+                Logger.PrintWarning(LogClass.KernelSvc, $"{svcName} returned error {result}.");
+            }
+            else
+            {
+                Logger.PrintDebug(LogClass.KernelSvc, $"{svcName} returned result {result}.");
+            }
+        }
+    }
+}