forked from Mirror/Ryujinx
1091 lines
38 KiB
C#
1091 lines
38 KiB
C#
using ARMeilleure.CodeGen;
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using ARMeilleure.CodeGen.Linking;
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using ARMeilleure.CodeGen.Unwinding;
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using ARMeilleure.CodeGen.X86;
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using ARMeilleure.Common;
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using ARMeilleure.Memory;
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using Ryujinx.Common;
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using Ryujinx.Common.Configuration;
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using Ryujinx.Common.Logging;
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using System;
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using System.Buffers.Binary;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.IO.Compression;
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using System.Runtime;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Threading;
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using static ARMeilleure.Translation.PTC.PtcFormatter;
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namespace ARMeilleure.Translation.PTC
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{
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public static class Ptc
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{
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private const string OuterHeaderMagicString = "PTCohd\0\0";
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private const string InnerHeaderMagicString = "PTCihd\0\0";
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private const uint InternalVersion = 3061; //! To be incremented manually for each change to the ARMeilleure project.
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private const string ActualDir = "0";
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private const string BackupDir = "1";
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private const string TitleIdTextDefault = "0000000000000000";
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private const string DisplayVersionDefault = "0";
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internal static readonly Symbol PageTableSymbol = new(SymbolType.Special, 1);
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internal static readonly Symbol CountTableSymbol = new(SymbolType.Special, 2);
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internal static readonly Symbol DispatchStubSymbol = new(SymbolType.Special, 3);
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private const byte FillingByte = 0x00;
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private const CompressionLevel SaveCompressionLevel = CompressionLevel.Fastest;
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// Carriers.
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private static MemoryStream _infosStream;
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private static List<byte[]> _codesList;
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private static MemoryStream _relocsStream;
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private static MemoryStream _unwindInfosStream;
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private static readonly ulong _outerHeaderMagic;
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private static readonly ulong _innerHeaderMagic;
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private static readonly ManualResetEvent _waitEvent;
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private static readonly object _lock;
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private static bool _disposed;
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internal static string TitleIdText { get; private set; }
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internal static string DisplayVersion { get; private set; }
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private static MemoryManagerMode _memoryMode;
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internal static string CachePathActual { get; private set; }
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internal static string CachePathBackup { get; private set; }
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internal static PtcState State { get; private set; }
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// Progress reporting helpers.
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private static volatile int _translateCount;
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private static volatile int _translateTotalCount;
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public static event Action<PtcLoadingState, int, int> PtcStateChanged;
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static Ptc()
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{
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InitializeCarriers();
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_outerHeaderMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(OuterHeaderMagicString).AsSpan());
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_innerHeaderMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(InnerHeaderMagicString).AsSpan());
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_waitEvent = new ManualResetEvent(true);
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_lock = new object();
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_disposed = false;
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TitleIdText = TitleIdTextDefault;
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DisplayVersion = DisplayVersionDefault;
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CachePathActual = string.Empty;
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CachePathBackup = string.Empty;
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Disable();
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}
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public static void Initialize(string titleIdText, string displayVersion, bool enabled, MemoryManagerMode memoryMode)
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{
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Wait();
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PtcProfiler.Wait();
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PtcProfiler.ClearEntries();
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Logger.Info?.Print(LogClass.Ptc, $"Initializing Profiled Persistent Translation Cache (enabled: {enabled}).");
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if (!enabled || string.IsNullOrEmpty(titleIdText) || titleIdText == TitleIdTextDefault)
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{
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TitleIdText = TitleIdTextDefault;
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DisplayVersion = DisplayVersionDefault;
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CachePathActual = string.Empty;
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CachePathBackup = string.Empty;
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Disable();
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return;
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}
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TitleIdText = titleIdText;
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DisplayVersion = !string.IsNullOrEmpty(displayVersion) ? displayVersion : DisplayVersionDefault;
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_memoryMode = memoryMode;
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string workPathActual = Path.Combine(AppDataManager.GamesDirPath, TitleIdText, "cache", "cpu", ActualDir);
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string workPathBackup = Path.Combine(AppDataManager.GamesDirPath, TitleIdText, "cache", "cpu", BackupDir);
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if (!Directory.Exists(workPathActual))
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{
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Directory.CreateDirectory(workPathActual);
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}
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if (!Directory.Exists(workPathBackup))
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{
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Directory.CreateDirectory(workPathBackup);
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}
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CachePathActual = Path.Combine(workPathActual, DisplayVersion);
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CachePathBackup = Path.Combine(workPathBackup, DisplayVersion);
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PreLoad();
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PtcProfiler.PreLoad();
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Enable();
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}
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private static void InitializeCarriers()
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{
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_infosStream = new MemoryStream();
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_codesList = new List<byte[]>();
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_relocsStream = new MemoryStream();
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_unwindInfosStream = new MemoryStream();
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}
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private static void DisposeCarriers()
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{
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_infosStream.Dispose();
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_codesList.Clear();
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_relocsStream.Dispose();
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_unwindInfosStream.Dispose();
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}
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private static bool AreCarriersEmpty()
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{
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return _infosStream.Length == 0L && _codesList.Count == 0 && _relocsStream.Length == 0L && _unwindInfosStream.Length == 0L;
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}
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private static void ResetCarriersIfNeeded()
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{
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if (AreCarriersEmpty())
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{
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return;
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}
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DisposeCarriers();
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InitializeCarriers();
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}
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private static void PreLoad()
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{
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string fileNameActual = string.Concat(CachePathActual, ".cache");
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string fileNameBackup = string.Concat(CachePathBackup, ".cache");
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FileInfo fileInfoActual = new FileInfo(fileNameActual);
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FileInfo fileInfoBackup = new FileInfo(fileNameBackup);
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if (fileInfoActual.Exists && fileInfoActual.Length != 0L)
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{
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if (!Load(fileNameActual, false))
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{
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if (fileInfoBackup.Exists && fileInfoBackup.Length != 0L)
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{
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Load(fileNameBackup, true);
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}
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}
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}
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else if (fileInfoBackup.Exists && fileInfoBackup.Length != 0L)
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{
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Load(fileNameBackup, true);
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}
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}
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private static unsafe bool Load(string fileName, bool isBackup)
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{
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using (FileStream compressedStream = new(fileName, FileMode.Open))
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using (DeflateStream deflateStream = new(compressedStream, CompressionMode.Decompress, true))
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{
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OuterHeader outerHeader = DeserializeStructure<OuterHeader>(compressedStream);
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if (!outerHeader.IsHeaderValid())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.Magic != _outerHeaderMagic)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.CacheFileVersion != InternalVersion)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.Endianness != GetEndianness())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.FeatureInfo != GetFeatureInfo())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.MemoryManagerMode != GetMemoryManagerMode())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (outerHeader.OSPlatform != GetOSPlatform())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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IntPtr intPtr = IntPtr.Zero;
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try
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{
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intPtr = Marshal.AllocHGlobal(new IntPtr(outerHeader.UncompressedStreamSize));
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using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), outerHeader.UncompressedStreamSize, outerHeader.UncompressedStreamSize, FileAccess.ReadWrite))
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{
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try
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{
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deflateStream.CopyTo(stream);
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}
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catch
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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Debug.Assert(stream.Position == stream.Length);
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stream.Seek(0L, SeekOrigin.Begin);
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InnerHeader innerHeader = DeserializeStructure<InnerHeader>(stream);
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if (!innerHeader.IsHeaderValid())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (innerHeader.Magic != _innerHeaderMagic)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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ReadOnlySpan<byte> infosBytes = new(stream.PositionPointer, innerHeader.InfosLength);
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stream.Seek(innerHeader.InfosLength, SeekOrigin.Current);
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Hash128 infosHash = XXHash128.ComputeHash(infosBytes);
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if (innerHeader.InfosHash != infosHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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ReadOnlySpan<byte> codesBytes = (int)innerHeader.CodesLength > 0 ? new(stream.PositionPointer, (int)innerHeader.CodesLength) : ReadOnlySpan<byte>.Empty;
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stream.Seek(innerHeader.CodesLength, SeekOrigin.Current);
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Hash128 codesHash = XXHash128.ComputeHash(codesBytes);
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if (innerHeader.CodesHash != codesHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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ReadOnlySpan<byte> relocsBytes = new(stream.PositionPointer, innerHeader.RelocsLength);
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stream.Seek(innerHeader.RelocsLength, SeekOrigin.Current);
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Hash128 relocsHash = XXHash128.ComputeHash(relocsBytes);
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if (innerHeader.RelocsHash != relocsHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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ReadOnlySpan<byte> unwindInfosBytes = new(stream.PositionPointer, innerHeader.UnwindInfosLength);
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stream.Seek(innerHeader.UnwindInfosLength, SeekOrigin.Current);
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Hash128 unwindInfosHash = XXHash128.ComputeHash(unwindInfosBytes);
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if (innerHeader.UnwindInfosHash != unwindInfosHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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Debug.Assert(stream.Position == stream.Length);
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stream.Seek((long)Unsafe.SizeOf<InnerHeader>(), SeekOrigin.Begin);
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_infosStream.Write(infosBytes);
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stream.Seek(innerHeader.InfosLength, SeekOrigin.Current);
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_codesList.ReadFrom(stream);
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_relocsStream.Write(relocsBytes);
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stream.Seek(innerHeader.RelocsLength, SeekOrigin.Current);
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_unwindInfosStream.Write(unwindInfosBytes);
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stream.Seek(innerHeader.UnwindInfosLength, SeekOrigin.Current);
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Debug.Assert(stream.Position == stream.Length);
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}
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}
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finally
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{
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if (intPtr != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(intPtr);
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}
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}
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}
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long fileSize = new FileInfo(fileName).Length;
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Logger.Info?.Print(LogClass.Ptc, $"{(isBackup ? "Loaded Backup Translation Cache" : "Loaded Translation Cache")} (size: {fileSize} bytes, translated functions: {GetEntriesCount()}).");
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return true;
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}
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private static void InvalidateCompressedStream(FileStream compressedStream)
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{
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compressedStream.SetLength(0L);
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}
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private static void PreSave()
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{
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_waitEvent.Reset();
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try
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{
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string fileNameActual = string.Concat(CachePathActual, ".cache");
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string fileNameBackup = string.Concat(CachePathBackup, ".cache");
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FileInfo fileInfoActual = new FileInfo(fileNameActual);
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if (fileInfoActual.Exists && fileInfoActual.Length != 0L)
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{
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File.Copy(fileNameActual, fileNameBackup, true);
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}
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Save(fileNameActual);
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}
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finally
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{
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ResetCarriersIfNeeded();
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GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
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}
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_waitEvent.Set();
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}
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private static unsafe void Save(string fileName)
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{
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int translatedFuncsCount;
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InnerHeader innerHeader = new InnerHeader();
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innerHeader.Magic = _innerHeaderMagic;
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innerHeader.InfosLength = (int)_infosStream.Length;
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innerHeader.CodesLength = _codesList.Length();
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innerHeader.RelocsLength = (int)_relocsStream.Length;
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innerHeader.UnwindInfosLength = (int)_unwindInfosStream.Length;
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OuterHeader outerHeader = new OuterHeader();
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outerHeader.Magic = _outerHeaderMagic;
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outerHeader.CacheFileVersion = InternalVersion;
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outerHeader.Endianness = GetEndianness();
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outerHeader.FeatureInfo = GetFeatureInfo();
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outerHeader.MemoryManagerMode = GetMemoryManagerMode();
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outerHeader.OSPlatform = GetOSPlatform();
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outerHeader.UncompressedStreamSize =
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(long)Unsafe.SizeOf<InnerHeader>() +
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innerHeader.InfosLength +
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innerHeader.CodesLength +
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innerHeader.RelocsLength +
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innerHeader.UnwindInfosLength;
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outerHeader.SetHeaderHash();
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IntPtr intPtr = IntPtr.Zero;
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try
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{
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intPtr = Marshal.AllocHGlobal(new IntPtr(outerHeader.UncompressedStreamSize));
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using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), outerHeader.UncompressedStreamSize, outerHeader.UncompressedStreamSize, FileAccess.ReadWrite))
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{
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stream.Seek((long)Unsafe.SizeOf<InnerHeader>(), SeekOrigin.Begin);
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ReadOnlySpan<byte> infosBytes = new(stream.PositionPointer, innerHeader.InfosLength);
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_infosStream.WriteTo(stream);
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ReadOnlySpan<byte> codesBytes = (int)innerHeader.CodesLength > 0 ? new(stream.PositionPointer, (int)innerHeader.CodesLength) : ReadOnlySpan<byte>.Empty;
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_codesList.WriteTo(stream);
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ReadOnlySpan<byte> relocsBytes = new(stream.PositionPointer, innerHeader.RelocsLength);
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_relocsStream.WriteTo(stream);
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ReadOnlySpan<byte> unwindInfosBytes = new(stream.PositionPointer, innerHeader.UnwindInfosLength);
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_unwindInfosStream.WriteTo(stream);
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Debug.Assert(stream.Position == stream.Length);
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innerHeader.InfosHash = XXHash128.ComputeHash(infosBytes);
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innerHeader.CodesHash = XXHash128.ComputeHash(codesBytes);
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innerHeader.RelocsHash = XXHash128.ComputeHash(relocsBytes);
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innerHeader.UnwindInfosHash = XXHash128.ComputeHash(unwindInfosBytes);
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innerHeader.SetHeaderHash();
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stream.Seek(0L, SeekOrigin.Begin);
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SerializeStructure(stream, innerHeader);
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translatedFuncsCount = GetEntriesCount();
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ResetCarriersIfNeeded();
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using (FileStream compressedStream = new(fileName, FileMode.OpenOrCreate))
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using (DeflateStream deflateStream = new(compressedStream, SaveCompressionLevel, true))
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{
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try
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{
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SerializeStructure(compressedStream, outerHeader);
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stream.Seek(0L, SeekOrigin.Begin);
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stream.CopyTo(deflateStream);
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}
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catch
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{
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compressedStream.Position = 0L;
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}
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if (compressedStream.Position < compressedStream.Length)
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{
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compressedStream.SetLength(compressedStream.Position);
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}
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}
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}
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}
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finally
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{
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if (intPtr != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(intPtr);
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}
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}
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long fileSize = new FileInfo(fileName).Length;
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if (fileSize != 0L)
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{
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Logger.Info?.Print(LogClass.Ptc, $"Saved Translation Cache (size: {fileSize} bytes, translated functions: {translatedFuncsCount}).");
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}
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}
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internal static void LoadTranslations(Translator translator)
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{
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if (AreCarriersEmpty())
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{
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return;
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}
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long infosStreamLength = _infosStream.Length;
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long relocsStreamLength = _relocsStream.Length;
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long unwindInfosStreamLength = _unwindInfosStream.Length;
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_infosStream.Seek(0L, SeekOrigin.Begin);
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_relocsStream.Seek(0L, SeekOrigin.Begin);
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_unwindInfosStream.Seek(0L, SeekOrigin.Begin);
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using (BinaryReader relocsReader = new(_relocsStream, EncodingCache.UTF8NoBOM, true))
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using (BinaryReader unwindInfosReader = new(_unwindInfosStream, EncodingCache.UTF8NoBOM, true))
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{
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for (int index = 0; index < GetEntriesCount(); index++)
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{
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InfoEntry infoEntry = DeserializeStructure<InfoEntry>(_infosStream);
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if (infoEntry.Stubbed)
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{
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SkipCode(index, infoEntry.CodeLength);
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SkipReloc(infoEntry.RelocEntriesCount);
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SkipUnwindInfo(unwindInfosReader);
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continue;
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}
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bool isEntryChanged = infoEntry.Hash != ComputeHash(translator.Memory, infoEntry.Address, infoEntry.GuestSize);
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if (isEntryChanged || (!infoEntry.HighCq && PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) && value.HighCq))
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{
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infoEntry.Stubbed = true;
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infoEntry.CodeLength = 0;
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UpdateInfo(infoEntry);
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StubCode(index);
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StubReloc(infoEntry.RelocEntriesCount);
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StubUnwindInfo(unwindInfosReader);
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if (isEntryChanged)
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{
|
|
Logger.Info?.Print(LogClass.Ptc, $"Invalidated translated function (address: 0x{infoEntry.Address:X16})");
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
byte[] code = ReadCode(index, infoEntry.CodeLength);
|
|
|
|
Counter<uint> callCounter = null;
|
|
|
|
if (infoEntry.RelocEntriesCount != 0)
|
|
{
|
|
RelocEntry[] relocEntries = GetRelocEntries(relocsReader, infoEntry.RelocEntriesCount);
|
|
|
|
PatchCode(translator, code, relocEntries, out callCounter);
|
|
}
|
|
|
|
UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
|
|
|
|
TranslatedFunction func = FastTranslate(code, callCounter, infoEntry.GuestSize, unwindInfo, infoEntry.HighCq);
|
|
|
|
translator.RegisterFunction(infoEntry.Address, func);
|
|
|
|
bool isAddressUnique = translator.Functions.TryAdd(infoEntry.Address, func);
|
|
|
|
Debug.Assert(isAddressUnique, $"The address 0x{infoEntry.Address:X16} is not unique.");
|
|
}
|
|
}
|
|
|
|
if (_infosStream.Length != infosStreamLength || _infosStream.Position != infosStreamLength ||
|
|
_relocsStream.Length != relocsStreamLength || _relocsStream.Position != relocsStreamLength ||
|
|
_unwindInfosStream.Length != unwindInfosStreamLength || _unwindInfosStream.Position != unwindInfosStreamLength)
|
|
{
|
|
throw new Exception("The length of a memory stream has changed, or its position has not reached or has exceeded its end.");
|
|
}
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{translator.Functions.Count} translated functions loaded");
|
|
}
|
|
|
|
private static int GetEntriesCount()
|
|
{
|
|
return _codesList.Count;
|
|
}
|
|
|
|
[Conditional("DEBUG")]
|
|
private static void SkipCode(int index, int codeLength)
|
|
{
|
|
Debug.Assert(_codesList[index].Length == 0);
|
|
Debug.Assert(codeLength == 0);
|
|
}
|
|
|
|
private static void SkipReloc(int relocEntriesCount)
|
|
{
|
|
_relocsStream.Seek(relocEntriesCount * RelocEntry.Stride, SeekOrigin.Current);
|
|
}
|
|
|
|
private static void SkipUnwindInfo(BinaryReader unwindInfosReader)
|
|
{
|
|
int pushEntriesLength = unwindInfosReader.ReadInt32();
|
|
|
|
_unwindInfosStream.Seek(pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride, SeekOrigin.Current);
|
|
}
|
|
|
|
private static byte[] ReadCode(int index, int codeLength)
|
|
{
|
|
Debug.Assert(_codesList[index].Length == codeLength);
|
|
|
|
return _codesList[index];
|
|
}
|
|
|
|
private static RelocEntry[] GetRelocEntries(BinaryReader relocsReader, int relocEntriesCount)
|
|
{
|
|
RelocEntry[] relocEntries = new RelocEntry[relocEntriesCount];
|
|
|
|
for (int i = 0; i < relocEntriesCount; i++)
|
|
{
|
|
int position = relocsReader.ReadInt32();
|
|
SymbolType type = (SymbolType)relocsReader.ReadByte();
|
|
ulong value = relocsReader.ReadUInt64();
|
|
|
|
relocEntries[i] = new RelocEntry(position, new Symbol(type, value));
|
|
}
|
|
|
|
return relocEntries;
|
|
}
|
|
|
|
private static void PatchCode(Translator translator, Span<byte> code, RelocEntry[] relocEntries, out Counter<uint> callCounter)
|
|
{
|
|
callCounter = null;
|
|
|
|
foreach (RelocEntry relocEntry in relocEntries)
|
|
{
|
|
IntPtr? imm = null;
|
|
Symbol symbol = relocEntry.Symbol;
|
|
|
|
if (symbol.Type == SymbolType.FunctionTable)
|
|
{
|
|
ulong guestAddress = symbol.Value;
|
|
|
|
if (translator.FunctionTable.IsValid(guestAddress))
|
|
{
|
|
unsafe { imm = (IntPtr)Unsafe.AsPointer(ref translator.FunctionTable.GetValue(guestAddress)); }
|
|
}
|
|
}
|
|
else if (symbol.Type == SymbolType.DelegateTable)
|
|
{
|
|
int index = (int)symbol.Value;
|
|
|
|
if (Delegates.TryGetDelegateFuncPtrByIndex(index, out IntPtr funcPtr))
|
|
{
|
|
imm = funcPtr;
|
|
}
|
|
}
|
|
else if (symbol == PageTableSymbol)
|
|
{
|
|
imm = translator.Memory.PageTablePointer;
|
|
}
|
|
else if (symbol == CountTableSymbol)
|
|
{
|
|
if (callCounter == null)
|
|
{
|
|
callCounter = new Counter<uint>(translator.CountTable);
|
|
}
|
|
|
|
unsafe { imm = (IntPtr)Unsafe.AsPointer(ref callCounter.Value); }
|
|
}
|
|
else if (symbol == DispatchStubSymbol)
|
|
{
|
|
imm = translator.Stubs.DispatchStub;
|
|
}
|
|
|
|
if (imm == null)
|
|
{
|
|
throw new Exception($"Unexpected reloc entry {relocEntry}.");
|
|
}
|
|
|
|
BinaryPrimitives.WriteUInt64LittleEndian(code.Slice(relocEntry.Position, 8), (ulong)imm.Value);
|
|
}
|
|
}
|
|
|
|
private static UnwindInfo ReadUnwindInfo(BinaryReader unwindInfosReader)
|
|
{
|
|
int pushEntriesLength = unwindInfosReader.ReadInt32();
|
|
|
|
UnwindPushEntry[] pushEntries = new UnwindPushEntry[pushEntriesLength];
|
|
|
|
for (int i = 0; i < pushEntriesLength; i++)
|
|
{
|
|
int pseudoOp = unwindInfosReader.ReadInt32();
|
|
int prologOffset = unwindInfosReader.ReadInt32();
|
|
int regIndex = unwindInfosReader.ReadInt32();
|
|
int stackOffsetOrAllocSize = unwindInfosReader.ReadInt32();
|
|
|
|
pushEntries[i] = new UnwindPushEntry((UnwindPseudoOp)pseudoOp, prologOffset, regIndex, stackOffsetOrAllocSize);
|
|
}
|
|
|
|
int prologueSize = unwindInfosReader.ReadInt32();
|
|
|
|
return new UnwindInfo(pushEntries, prologueSize);
|
|
}
|
|
|
|
private static TranslatedFunction FastTranslate(
|
|
byte[] code,
|
|
Counter<uint> callCounter,
|
|
ulong guestSize,
|
|
UnwindInfo unwindInfo,
|
|
bool highCq)
|
|
{
|
|
var cFunc = new CompiledFunction(code, unwindInfo, RelocInfo.Empty);
|
|
var gFunc = cFunc.Map<GuestFunction>();
|
|
|
|
return new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
|
|
}
|
|
|
|
private static void UpdateInfo(InfoEntry infoEntry)
|
|
{
|
|
_infosStream.Seek(-Unsafe.SizeOf<InfoEntry>(), SeekOrigin.Current);
|
|
|
|
SerializeStructure(_infosStream, infoEntry);
|
|
}
|
|
|
|
private static void StubCode(int index)
|
|
{
|
|
_codesList[index] = Array.Empty<byte>();
|
|
}
|
|
|
|
private static void StubReloc(int relocEntriesCount)
|
|
{
|
|
for (int i = 0; i < relocEntriesCount * RelocEntry.Stride; i++)
|
|
{
|
|
_relocsStream.WriteByte(FillingByte);
|
|
}
|
|
}
|
|
|
|
private static void StubUnwindInfo(BinaryReader unwindInfosReader)
|
|
{
|
|
int pushEntriesLength = unwindInfosReader.ReadInt32();
|
|
|
|
for (int i = 0; i < pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride; i++)
|
|
{
|
|
_unwindInfosStream.WriteByte(FillingByte);
|
|
}
|
|
}
|
|
|
|
internal static void MakeAndSaveTranslations(Translator translator)
|
|
{
|
|
var profiledFuncsToTranslate = PtcProfiler.GetProfiledFuncsToTranslate(translator.Functions);
|
|
|
|
_translateCount = 0;
|
|
_translateTotalCount = profiledFuncsToTranslate.Count;
|
|
|
|
if (_translateTotalCount == 0)
|
|
{
|
|
ResetCarriersIfNeeded();
|
|
|
|
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
|
|
|
|
return;
|
|
}
|
|
|
|
int degreeOfParallelism = Environment.ProcessorCount;
|
|
|
|
// If there are enough cores lying around, we leave one alone for other tasks.
|
|
if (degreeOfParallelism > 4)
|
|
{
|
|
degreeOfParallelism--;
|
|
}
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism}");
|
|
|
|
PtcStateChanged?.Invoke(PtcLoadingState.Start, _translateCount, _translateTotalCount);
|
|
|
|
using AutoResetEvent progressReportEvent = new AutoResetEvent(false);
|
|
|
|
Thread progressReportThread = new Thread(ReportProgress)
|
|
{
|
|
Name = "Ptc.ProgressReporter",
|
|
Priority = ThreadPriority.Lowest,
|
|
IsBackground = true
|
|
};
|
|
|
|
progressReportThread.Start(progressReportEvent);
|
|
|
|
void TranslateFuncs()
|
|
{
|
|
while (profiledFuncsToTranslate.TryDequeue(out var item))
|
|
{
|
|
ulong address = item.address;
|
|
|
|
Debug.Assert(PtcProfiler.IsAddressInStaticCodeRange(address));
|
|
|
|
TranslatedFunction func = translator.Translate(address, item.funcProfile.Mode, item.funcProfile.HighCq);
|
|
|
|
bool isAddressUnique = translator.Functions.TryAdd(address, func);
|
|
|
|
Debug.Assert(isAddressUnique, $"The address 0x{address:X16} is not unique.");
|
|
|
|
Interlocked.Increment(ref _translateCount);
|
|
|
|
translator.RegisterFunction(address, func);
|
|
|
|
if (State != PtcState.Enabled)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
List<Thread> threads = new List<Thread>();
|
|
|
|
for (int i = 0; i < degreeOfParallelism; i++)
|
|
{
|
|
Thread thread = new Thread(TranslateFuncs);
|
|
thread.IsBackground = true;
|
|
|
|
threads.Add(thread);
|
|
}
|
|
|
|
Stopwatch sw = Stopwatch.StartNew();
|
|
|
|
threads.ForEach((thread) => thread.Start());
|
|
threads.ForEach((thread) => thread.Join());
|
|
|
|
threads.Clear();
|
|
|
|
progressReportEvent.Set();
|
|
progressReportThread.Join();
|
|
|
|
sw.Stop();
|
|
|
|
PtcStateChanged?.Invoke(PtcLoadingState.Loaded, _translateCount, _translateTotalCount);
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism} in {sw.Elapsed.TotalSeconds} s");
|
|
|
|
Thread preSaveThread = new Thread(PreSave);
|
|
preSaveThread.IsBackground = true;
|
|
preSaveThread.Start();
|
|
}
|
|
|
|
private static void ReportProgress(object state)
|
|
{
|
|
const int refreshRate = 50; // ms.
|
|
|
|
AutoResetEvent endEvent = (AutoResetEvent)state;
|
|
|
|
int count = 0;
|
|
|
|
do
|
|
{
|
|
int newCount = _translateCount;
|
|
|
|
if (count != newCount)
|
|
{
|
|
PtcStateChanged?.Invoke(PtcLoadingState.Loading, newCount, _translateTotalCount);
|
|
count = newCount;
|
|
}
|
|
}
|
|
while (!endEvent.WaitOne(refreshRate));
|
|
}
|
|
|
|
internal static Hash128 ComputeHash(IMemoryManager memory, ulong address, ulong guestSize)
|
|
{
|
|
return XXHash128.ComputeHash(memory.GetSpan(address, checked((int)(guestSize))));
|
|
}
|
|
|
|
internal static void WriteCompiledFunction(ulong address, ulong guestSize, Hash128 hash, bool highCq, CompiledFunction compiledFunc)
|
|
{
|
|
lock (_lock)
|
|
{
|
|
byte[] code = compiledFunc.Code;
|
|
RelocInfo relocInfo = compiledFunc.RelocInfo;
|
|
UnwindInfo unwindInfo = compiledFunc.UnwindInfo;
|
|
|
|
InfoEntry infoEntry = new InfoEntry();
|
|
|
|
infoEntry.Address = address;
|
|
infoEntry.GuestSize = guestSize;
|
|
infoEntry.Hash = hash;
|
|
infoEntry.HighCq = highCq;
|
|
infoEntry.Stubbed = false;
|
|
infoEntry.CodeLength = code.Length;
|
|
infoEntry.RelocEntriesCount = relocInfo.Entries.Length;
|
|
|
|
SerializeStructure(_infosStream, infoEntry);
|
|
|
|
WriteCode(code.AsSpan());
|
|
|
|
// WriteReloc.
|
|
using var relocInfoWriter = new BinaryWriter(_relocsStream, EncodingCache.UTF8NoBOM, true);
|
|
|
|
foreach (RelocEntry entry in relocInfo.Entries)
|
|
{
|
|
relocInfoWriter.Write(entry.Position);
|
|
relocInfoWriter.Write((byte)entry.Symbol.Type);
|
|
relocInfoWriter.Write(entry.Symbol.Value);
|
|
}
|
|
|
|
// WriteUnwindInfo.
|
|
using var unwindInfoWriter = new BinaryWriter(_unwindInfosStream, EncodingCache.UTF8NoBOM, true);
|
|
|
|
unwindInfoWriter.Write(unwindInfo.PushEntries.Length);
|
|
|
|
foreach (UnwindPushEntry unwindPushEntry in unwindInfo.PushEntries)
|
|
{
|
|
unwindInfoWriter.Write((int)unwindPushEntry.PseudoOp);
|
|
unwindInfoWriter.Write(unwindPushEntry.PrologOffset);
|
|
unwindInfoWriter.Write(unwindPushEntry.RegIndex);
|
|
unwindInfoWriter.Write(unwindPushEntry.StackOffsetOrAllocSize);
|
|
}
|
|
|
|
unwindInfoWriter.Write(unwindInfo.PrologSize);
|
|
}
|
|
}
|
|
|
|
private static void WriteCode(ReadOnlySpan<byte> code)
|
|
{
|
|
_codesList.Add(code.ToArray());
|
|
}
|
|
|
|
internal static bool GetEndianness()
|
|
{
|
|
return BitConverter.IsLittleEndian;
|
|
}
|
|
|
|
private static ulong GetFeatureInfo()
|
|
{
|
|
return (ulong)HardwareCapabilities.FeatureInfoEdx << 32 | (uint)HardwareCapabilities.FeatureInfoEcx;
|
|
}
|
|
|
|
private static byte GetMemoryManagerMode()
|
|
{
|
|
return (byte)_memoryMode;
|
|
}
|
|
|
|
private static uint GetOSPlatform()
|
|
{
|
|
uint osPlatform = 0u;
|
|
|
|
osPlatform |= (OperatingSystem.IsFreeBSD() ? 1u : 0u) << 0;
|
|
osPlatform |= (OperatingSystem.IsLinux() ? 1u : 0u) << 1;
|
|
osPlatform |= (OperatingSystem.IsMacOS() ? 1u : 0u) << 2;
|
|
osPlatform |= (OperatingSystem.IsWindows() ? 1u : 0u) << 3;
|
|
|
|
return osPlatform;
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 50*/)]
|
|
private struct OuterHeader
|
|
{
|
|
public ulong Magic;
|
|
|
|
public uint CacheFileVersion;
|
|
|
|
public bool Endianness;
|
|
public ulong FeatureInfo;
|
|
public byte MemoryManagerMode;
|
|
public uint OSPlatform;
|
|
|
|
public long UncompressedStreamSize;
|
|
|
|
public Hash128 HeaderHash;
|
|
|
|
public void SetHeaderHash()
|
|
{
|
|
Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
|
|
|
|
HeaderHash = XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>()));
|
|
}
|
|
|
|
public bool IsHeaderValid()
|
|
{
|
|
Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
|
|
|
|
return XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>())) == HeaderHash;
|
|
}
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 128*/)]
|
|
private struct InnerHeader
|
|
{
|
|
public ulong Magic;
|
|
|
|
public int InfosLength;
|
|
public long CodesLength;
|
|
public int RelocsLength;
|
|
public int UnwindInfosLength;
|
|
|
|
public Hash128 InfosHash;
|
|
public Hash128 CodesHash;
|
|
public Hash128 RelocsHash;
|
|
public Hash128 UnwindInfosHash;
|
|
|
|
public Hash128 HeaderHash;
|
|
|
|
public void SetHeaderHash()
|
|
{
|
|
Span<InnerHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
|
|
|
|
HeaderHash = XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<InnerHeader>() - Unsafe.SizeOf<Hash128>()));
|
|
}
|
|
|
|
public bool IsHeaderValid()
|
|
{
|
|
Span<InnerHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
|
|
|
|
return XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<InnerHeader>() - Unsafe.SizeOf<Hash128>())) == HeaderHash;
|
|
}
|
|
}
|
|
|
|
[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 42*/)]
|
|
private struct InfoEntry
|
|
{
|
|
public ulong Address;
|
|
public ulong GuestSize;
|
|
public Hash128 Hash;
|
|
public bool HighCq;
|
|
public bool Stubbed;
|
|
public int CodeLength;
|
|
public int RelocEntriesCount;
|
|
}
|
|
|
|
private static void Enable()
|
|
{
|
|
State = PtcState.Enabled;
|
|
}
|
|
|
|
public static void Continue()
|
|
{
|
|
if (State == PtcState.Enabled)
|
|
{
|
|
State = PtcState.Continuing;
|
|
}
|
|
}
|
|
|
|
public static void Close()
|
|
{
|
|
if (State == PtcState.Enabled ||
|
|
State == PtcState.Continuing)
|
|
{
|
|
State = PtcState.Closing;
|
|
}
|
|
}
|
|
|
|
internal static void Disable()
|
|
{
|
|
State = PtcState.Disabled;
|
|
}
|
|
|
|
private static void Wait()
|
|
{
|
|
_waitEvent.WaitOne();
|
|
}
|
|
|
|
public static void Dispose()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
_disposed = true;
|
|
|
|
Wait();
|
|
_waitEvent.Dispose();
|
|
|
|
DisposeCarriers();
|
|
}
|
|
}
|
|
}
|
|
}
|