69f8722e79
Signal and setup events correctly Eliminate possible races Use a single event Mark volatiles and reduce scope of waithandles Common handler 100ms -> 50ms
990 lines
34 KiB
C#
990 lines
34 KiB
C#
using ARMeilleure.CodeGen;
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using ARMeilleure.CodeGen.Unwinding;
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using ARMeilleure.CodeGen.X86;
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using ARMeilleure.Memory;
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using ARMeilleure.Translation.Cache;
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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.Concurrent;
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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 HeaderMagicString = "PTChd\0\0\0";
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private const uint InternalVersion = 1990; //! 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 const int PageTablePointerIndex = -1; // Must be a negative value.
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internal const int JumpPointerIndex = -2; // Must be a negative value.
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internal const int DynamicPointerIndex = -3; // Must be a negative value.
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private const byte FillingByte = 0x00;
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private const CompressionLevel SaveCompressionLevel = CompressionLevel.Fastest;
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private static MemoryStream _infosStream;
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private static MemoryStream _codesStream;
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private static MemoryStream _relocsStream;
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private static MemoryStream _unwindInfosStream;
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private static BinaryWriter _infosWriter;
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private static readonly ulong _headerMagic;
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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 PtcJumpTable PtcJumpTable { get; private set; }
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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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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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InitializeMemoryStreams();
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_headerMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(HeaderMagicString).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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PtcJumpTable = new PtcJumpTable();
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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)
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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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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 InitializeMemoryStreams()
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{
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_infosStream = new MemoryStream();
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_codesStream = new MemoryStream();
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_relocsStream = new MemoryStream();
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_unwindInfosStream = new MemoryStream();
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_infosWriter = new BinaryWriter(_infosStream, EncodingCache.UTF8NoBOM, true);
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}
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private static void DisposeMemoryStreams()
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{
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_infosWriter.Dispose();
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_infosStream.Dispose();
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_codesStream.Dispose();
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_relocsStream.Dispose();
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_unwindInfosStream.Dispose();
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}
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private static bool AreMemoryStreamsEmpty()
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{
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return _infosStream.Length == 0L && _codesStream.Length == 0L && _relocsStream.Length == 0L && _unwindInfosStream.Length == 0L;
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}
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private static void ResetMemoryStreamsIfNeeded()
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{
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if (AreMemoryStreamsEmpty())
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{
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return;
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}
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DisposeMemoryStreams();
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InitializeMemoryStreams();
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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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Hash128 currentSizeHash = DeserializeStructure<Hash128>(compressedStream);
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Span<byte> sizeBytes = new byte[sizeof(int)];
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compressedStream.Read(sizeBytes);
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Hash128 expectedSizeHash = XXHash128.ComputeHash(sizeBytes);
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if (currentSizeHash != expectedSizeHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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int size = BinaryPrimitives.ReadInt32LittleEndian(sizeBytes);
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IntPtr intPtr = IntPtr.Zero;
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try
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{
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intPtr = Marshal.AllocHGlobal(size);
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using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), size, size, 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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int hashSize = Unsafe.SizeOf<Hash128>();
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stream.Seek(0L, SeekOrigin.Begin);
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Hash128 currentHash = DeserializeStructure<Hash128>(stream);
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ReadOnlySpan<byte> streamBytes = new(stream.PositionPointer, (int)(stream.Length - stream.Position));
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Hash128 expectedHash = XXHash128.ComputeHash(streamBytes);
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if (currentHash != expectedHash)
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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Header header = ReadHeader(stream);
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if (header.Magic != _headerMagic)
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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 (header.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 (header.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 (header.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 (header.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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if (header.InfosLen % InfoEntry.Stride != 0)
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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> infosBuf = new(stream.PositionPointer, header.InfosLen);
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stream.Seek(header.InfosLen, SeekOrigin.Current);
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ReadOnlySpan<byte> codesBuf = new(stream.PositionPointer, header.CodesLen);
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stream.Seek(header.CodesLen, SeekOrigin.Current);
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ReadOnlySpan<byte> relocsBuf = new(stream.PositionPointer, header.RelocsLen);
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stream.Seek(header.RelocsLen, SeekOrigin.Current);
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ReadOnlySpan<byte> unwindInfosBuf = new(stream.PositionPointer, header.UnwindInfosLen);
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stream.Seek(header.UnwindInfosLen, SeekOrigin.Current);
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try
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{
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PtcJumpTable = PtcJumpTable.Deserialize(stream);
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}
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catch
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{
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PtcJumpTable = new PtcJumpTable();
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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_infosStream.Write(infosBuf);
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_codesStream.Write(codesBuf);
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_relocsStream.Write(relocsBuf);
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_unwindInfosStream.Write(unwindInfosBuf);
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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: {GetInfosEntriesCount()}).");
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return true;
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}
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private static Header ReadHeader(Stream stream)
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{
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using (BinaryReader headerReader = new(stream, EncodingCache.UTF8NoBOM, true))
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{
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Header header = new Header();
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header.Magic = headerReader.ReadUInt64();
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header.CacheFileVersion = headerReader.ReadUInt32();
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header.Endianness = headerReader.ReadBoolean();
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header.FeatureInfo = headerReader.ReadUInt64();
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header.OSPlatform = headerReader.ReadUInt32();
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header.InfosLen = headerReader.ReadInt32();
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header.CodesLen = headerReader.ReadInt32();
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header.RelocsLen = headerReader.ReadInt32();
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header.UnwindInfosLen = headerReader.ReadInt32();
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return header;
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}
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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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ResetMemoryStreamsIfNeeded();
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PtcJumpTable.ClearIfNeeded();
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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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int hashSize = Unsafe.SizeOf<Hash128>();
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int size = hashSize + Header.Size + GetMemoryStreamsLength() + PtcJumpTable.GetSerializeSize(PtcJumpTable);
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Span<byte> sizeBytes = new byte[sizeof(int)];
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BinaryPrimitives.WriteInt32LittleEndian(sizeBytes, size);
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Hash128 sizeHash = XXHash128.ComputeHash(sizeBytes);
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Span<byte> sizeHashBytes = new byte[hashSize];
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MemoryMarshal.Write<Hash128>(sizeHashBytes, ref sizeHash);
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IntPtr intPtr = IntPtr.Zero;
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try
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{
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intPtr = Marshal.AllocHGlobal(size);
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using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), size, size, FileAccess.ReadWrite))
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{
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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WriteHeader(stream);
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_infosStream.WriteTo(stream);
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_codesStream.WriteTo(stream);
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_relocsStream.WriteTo(stream);
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_unwindInfosStream.WriteTo(stream);
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PtcJumpTable.Serialize(stream, PtcJumpTable);
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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ReadOnlySpan<byte> streamBytes = new(stream.PositionPointer, (int)(stream.Length - stream.Position));
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Hash128 hash = XXHash128.ComputeHash(streamBytes);
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stream.Seek(0L, SeekOrigin.Begin);
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SerializeStructure(stream, hash);
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translatedFuncsCount = GetInfosEntriesCount();
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ResetMemoryStreamsIfNeeded();
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PtcJumpTable.ClearIfNeeded();
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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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compressedStream.Write(sizeHashBytes);
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compressedStream.Write(sizeBytes);
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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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private static int GetMemoryStreamsLength()
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{
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return (int)_infosStream.Length + (int)_codesStream.Length + (int)_relocsStream.Length + (int)_unwindInfosStream.Length;
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}
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private static void WriteHeader(Stream stream)
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{
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using (BinaryWriter headerWriter = new(stream, EncodingCache.UTF8NoBOM, true))
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{
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headerWriter.Write((ulong)_headerMagic); // Header.Magic
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headerWriter.Write((uint)InternalVersion); // Header.CacheFileVersion
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headerWriter.Write((bool)GetEndianness()); // Header.Endianness
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headerWriter.Write((ulong)GetFeatureInfo()); // Header.FeatureInfo
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headerWriter.Write((uint)GetOSPlatform()); // Header.OSPlatform
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headerWriter.Write((int)_infosStream.Length); // Header.InfosLen
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headerWriter.Write((int)_codesStream.Length); // Header.CodesLen
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headerWriter.Write((int)_relocsStream.Length); // Header.RelocsLen
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headerWriter.Write((int)_unwindInfosStream.Length); // Header.UnwindInfosLen
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}
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}
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internal static void LoadTranslations(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, JumpTable jumpTable)
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{
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if (AreMemoryStreamsEmpty())
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{
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return;
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}
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Debug.Assert(funcs.Count == 0);
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_infosStream.Seek(0L, SeekOrigin.Begin);
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_codesStream.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 infosReader = new(_infosStream, EncodingCache.UTF8NoBOM, true))
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using (BinaryReader codesReader = new(_codesStream, EncodingCache.UTF8NoBOM, true))
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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 i = 0; i < GetInfosEntriesCount(); i++)
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{
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InfoEntry infoEntry = ReadInfo(infosReader);
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if (infoEntry.Stubbed)
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{
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SkipCode(infoEntry.CodeLen);
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SkipReloc(infoEntry.RelocEntriesCount);
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SkipUnwindInfo(unwindInfosReader);
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}
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else if (infoEntry.HighCq || !PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) || !value.HighCq)
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{
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Span<byte> code = ReadCode(codesReader, infoEntry.CodeLen);
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if (infoEntry.RelocEntriesCount != 0)
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{
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RelocEntry[] relocEntries = GetRelocEntries(relocsReader, infoEntry.RelocEntriesCount);
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PatchCode(code, relocEntries, memory.PageTablePointer, jumpTable);
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}
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UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
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TranslatedFunction func = FastTranslate(code, infoEntry.GuestSize, unwindInfo, infoEntry.HighCq);
|
|
|
|
bool isAddressUnique = funcs.TryAdd(infoEntry.Address, func);
|
|
|
|
Debug.Assert(isAddressUnique, $"The address 0x{infoEntry.Address:X16} is not unique.");
|
|
}
|
|
else
|
|
{
|
|
infoEntry.Stubbed = true;
|
|
UpdateInfo(infoEntry);
|
|
|
|
StubCode(infoEntry.CodeLen);
|
|
StubReloc(infoEntry.RelocEntriesCount);
|
|
StubUnwindInfo(unwindInfosReader);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_infosStream.Position < _infosStream.Length ||
|
|
_codesStream.Position < _codesStream.Length ||
|
|
_relocsStream.Position < _relocsStream.Length ||
|
|
_unwindInfosStream.Position < _unwindInfosStream.Length)
|
|
{
|
|
throw new Exception("Could not reach the end of one or more memory streams.");
|
|
}
|
|
|
|
jumpTable.Initialize(PtcJumpTable, funcs);
|
|
|
|
PtcJumpTable.WriteJumpTable(jumpTable, funcs);
|
|
PtcJumpTable.WriteDynamicTable(jumpTable);
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{funcs.Count} translated functions loaded");
|
|
}
|
|
|
|
private static int GetInfosEntriesCount()
|
|
{
|
|
return (int)_infosStream.Length / InfoEntry.Stride;
|
|
}
|
|
|
|
private static InfoEntry ReadInfo(BinaryReader infosReader)
|
|
{
|
|
InfoEntry infoEntry = new InfoEntry();
|
|
|
|
infoEntry.Address = infosReader.ReadUInt64();
|
|
infoEntry.GuestSize = infosReader.ReadUInt64();
|
|
infoEntry.HighCq = infosReader.ReadBoolean();
|
|
infoEntry.Stubbed = infosReader.ReadBoolean();
|
|
infoEntry.CodeLen = infosReader.ReadInt32();
|
|
infoEntry.RelocEntriesCount = infosReader.ReadInt32();
|
|
|
|
return infoEntry;
|
|
}
|
|
|
|
private static void SkipCode(int codeLen)
|
|
{
|
|
_codesStream.Seek(codeLen, SeekOrigin.Current);
|
|
}
|
|
|
|
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 Span<byte> ReadCode(BinaryReader codesReader, int codeLen)
|
|
{
|
|
Span<byte> codeBuf = new byte[codeLen];
|
|
|
|
codesReader.Read(codeBuf);
|
|
|
|
return codeBuf;
|
|
}
|
|
|
|
private static RelocEntry[] GetRelocEntries(BinaryReader relocsReader, int relocEntriesCount)
|
|
{
|
|
RelocEntry[] relocEntries = new RelocEntry[relocEntriesCount];
|
|
|
|
for (int i = 0; i < relocEntriesCount; i++)
|
|
{
|
|
int position = relocsReader.ReadInt32();
|
|
int index = relocsReader.ReadInt32();
|
|
|
|
relocEntries[i] = new RelocEntry(position, index);
|
|
}
|
|
|
|
return relocEntries;
|
|
}
|
|
|
|
private static void PatchCode(Span<byte> code, RelocEntry[] relocEntries, IntPtr pageTablePointer, JumpTable jumpTable)
|
|
{
|
|
foreach (RelocEntry relocEntry in relocEntries)
|
|
{
|
|
ulong imm;
|
|
|
|
if (relocEntry.Index == PageTablePointerIndex)
|
|
{
|
|
imm = (ulong)pageTablePointer.ToInt64();
|
|
}
|
|
else if (relocEntry.Index == JumpPointerIndex)
|
|
{
|
|
imm = (ulong)jumpTable.JumpPointer.ToInt64();
|
|
}
|
|
else if (relocEntry.Index == DynamicPointerIndex)
|
|
{
|
|
imm = (ulong)jumpTable.DynamicPointer.ToInt64();
|
|
}
|
|
else if (Delegates.TryGetDelegateFuncPtrByIndex(relocEntry.Index, out IntPtr funcPtr))
|
|
{
|
|
imm = (ulong)funcPtr.ToInt64();
|
|
}
|
|
else
|
|
{
|
|
throw new Exception($"Unexpected reloc entry {relocEntry}.");
|
|
}
|
|
|
|
BinaryPrimitives.WriteUInt64LittleEndian(code.Slice(relocEntry.Position, 8), imm);
|
|
}
|
|
}
|
|
|
|
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(ReadOnlySpan<byte> code, ulong guestSize, UnwindInfo unwindInfo, bool highCq)
|
|
{
|
|
CompiledFunction cFunc = new CompiledFunction(code.ToArray(), unwindInfo);
|
|
|
|
IntPtr codePtr = JitCache.Map(cFunc);
|
|
|
|
GuestFunction gFunc = Marshal.GetDelegateForFunctionPointer<GuestFunction>(codePtr);
|
|
|
|
TranslatedFunction tFunc = new TranslatedFunction(gFunc, guestSize, highCq);
|
|
|
|
return tFunc;
|
|
}
|
|
|
|
private static void UpdateInfo(InfoEntry infoEntry)
|
|
{
|
|
_infosStream.Seek(-InfoEntry.Stride, SeekOrigin.Current);
|
|
|
|
// WriteInfo.
|
|
_infosWriter.Write((ulong)infoEntry.Address);
|
|
_infosWriter.Write((ulong)infoEntry.GuestSize);
|
|
_infosWriter.Write((bool)infoEntry.HighCq);
|
|
_infosWriter.Write((bool)infoEntry.Stubbed);
|
|
_infosWriter.Write((int)infoEntry.CodeLen);
|
|
_infosWriter.Write((int)infoEntry.RelocEntriesCount);
|
|
}
|
|
|
|
private static void StubCode(int codeLen)
|
|
{
|
|
for (int i = 0; i < codeLen; i++)
|
|
{
|
|
_codesStream.WriteByte(FillingByte);
|
|
}
|
|
}
|
|
|
|
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(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, JumpTable jumpTable)
|
|
{
|
|
var profiledFuncsToTranslate = PtcProfiler.GetProfiledFuncsToTranslate(funcs);
|
|
|
|
if (profiledFuncsToTranslate.Count == 0)
|
|
{
|
|
ResetMemoryStreamsIfNeeded();
|
|
PtcJumpTable.ClearIfNeeded();
|
|
|
|
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
|
|
|
|
return;
|
|
}
|
|
|
|
_translateCount = 0;
|
|
_translateTotalCount = profiledFuncsToTranslate.Count;
|
|
|
|
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(memory, jumpTable, address, item.mode, item.highCq);
|
|
|
|
bool isAddressUnique = funcs.TryAdd(address, func);
|
|
|
|
Debug.Assert(isAddressUnique, $"The address 0x{address:X16} is not unique.");
|
|
|
|
if (func.HighCq)
|
|
{
|
|
jumpTable.RegisterFunction(address, func);
|
|
}
|
|
|
|
Interlocked.Increment(ref _translateCount);
|
|
|
|
if (State != PtcState.Enabled)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
Translator.DisposePools();
|
|
}
|
|
|
|
int maxDegreeOfParallelism = (Environment.ProcessorCount * 3) / 4;
|
|
|
|
List<Thread> threads = new List<Thread>();
|
|
|
|
for (int i = 0; i < maxDegreeOfParallelism; i++)
|
|
{
|
|
Thread thread = new Thread(TranslateFuncs);
|
|
thread.IsBackground = true;
|
|
|
|
threads.Add(thread);
|
|
}
|
|
|
|
threads.ForEach((thread) => thread.Start());
|
|
threads.ForEach((thread) => thread.Join());
|
|
|
|
threads.Clear();
|
|
|
|
progressReportEvent.Set();
|
|
progressReportThread.Join();
|
|
|
|
PtcStateChanged?.Invoke(PtcLoadingState.Loaded, _translateCount, _translateTotalCount);
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated");
|
|
|
|
PtcJumpTable.Initialize(jumpTable);
|
|
|
|
PtcJumpTable.ReadJumpTable(jumpTable);
|
|
PtcJumpTable.ReadDynamicTable(jumpTable);
|
|
|
|
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 void WriteInfoCodeRelocUnwindInfo(ulong address, ulong guestSize, bool highCq, PtcInfo ptcInfo)
|
|
{
|
|
lock (_lock)
|
|
{
|
|
// WriteInfo.
|
|
_infosWriter.Write((ulong)address); // InfoEntry.Address
|
|
_infosWriter.Write((ulong)guestSize); // InfoEntry.GuestSize
|
|
_infosWriter.Write((bool)highCq); // InfoEntry.HighCq
|
|
_infosWriter.Write((bool)false); // InfoEntry.Stubbed
|
|
_infosWriter.Write((int)ptcInfo.Code.Length); // InfoEntry.CodeLen
|
|
_infosWriter.Write((int)ptcInfo.RelocEntriesCount); // InfoEntry.RelocEntriesCount
|
|
|
|
// WriteCode.
|
|
_codesStream.Write(ptcInfo.Code.AsSpan());
|
|
|
|
// WriteReloc.
|
|
ptcInfo.RelocStream.WriteTo(_relocsStream);
|
|
|
|
// WriteUnwindInfo.
|
|
ptcInfo.UnwindInfoStream.WriteTo(_unwindInfosStream);
|
|
}
|
|
}
|
|
|
|
private static bool GetEndianness()
|
|
{
|
|
return BitConverter.IsLittleEndian;
|
|
}
|
|
|
|
private static ulong GetFeatureInfo()
|
|
{
|
|
return (ulong)HardwareCapabilities.FeatureInfoEdx << 32 | (uint)HardwareCapabilities.FeatureInfoEcx;
|
|
}
|
|
|
|
private static uint GetOSPlatform()
|
|
{
|
|
uint osPlatform = 0u;
|
|
|
|
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) ? 1u : 0u) << 0;
|
|
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? 1u : 0u) << 1;
|
|
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? 1u : 0u) << 2;
|
|
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? 1u : 0u) << 3;
|
|
|
|
return osPlatform;
|
|
}
|
|
|
|
private struct Header
|
|
{
|
|
public const int Size = 41; // Bytes.
|
|
|
|
public ulong Magic;
|
|
|
|
public uint CacheFileVersion;
|
|
public bool Endianness;
|
|
public ulong FeatureInfo;
|
|
public uint OSPlatform;
|
|
|
|
public int InfosLen;
|
|
public int CodesLen;
|
|
public int RelocsLen;
|
|
public int UnwindInfosLen;
|
|
}
|
|
|
|
private struct InfoEntry
|
|
{
|
|
public const int Stride = 26; // Bytes.
|
|
|
|
public ulong Address;
|
|
public ulong GuestSize;
|
|
public bool HighCq;
|
|
public bool Stubbed;
|
|
public int CodeLen;
|
|
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();
|
|
|
|
DisposeMemoryStreams();
|
|
}
|
|
}
|
|
}
|
|
} |