92f7f163ef
* Improve static branch prediction along fast path for memory accesses * Set PPTC interval version
740 lines
25 KiB
C#
740 lines
25 KiB
C#
using ARMeilleure.CodeGen;
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using ARMeilleure.CodeGen.Unwinding;
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using ARMeilleure.Memory;
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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.Diagnostics;
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using System.IO;
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using System.IO.Compression;
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using System.Runtime.InteropServices;
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using System.Runtime.Intrinsics.X86;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Threading;
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using System.Threading.Tasks;
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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 HeaderMagic = "PTChd";
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private const int InternalVersion = 1484; //! 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 CompressionLevel SaveCompressionLevel = CompressionLevel.Fastest;
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private static readonly MemoryStream _infosStream;
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private static readonly MemoryStream _codesStream;
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private static readonly MemoryStream _relocsStream;
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private static readonly MemoryStream _unwindInfosStream;
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private static readonly BinaryWriter _infosWriter;
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private static readonly BinaryFormatter _binaryFormatter;
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private static readonly ManualResetEvent _waitEvent;
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private static readonly AutoResetEvent _loggerEvent;
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private static readonly object _lock;
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private static bool _disposed;
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private static volatile int _translateCount;
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private static volatile int _rejitCount;
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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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static Ptc()
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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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_binaryFormatter = new BinaryFormatter();
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_waitEvent = new ManualResetEvent(true);
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_loggerEvent = new AutoResetEvent(false);
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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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ClearMemoryStreams();
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PtcJumpTable.Clear();
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PtcProfiler.Stop();
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PtcProfiler.Wait();
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PtcProfiler.ClearEntries();
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if (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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Logger.Info?.Print(LogClass.Ptc, $"Initializing Profiled Persistent Translation Cache (enabled: {enabled}).");
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TitleIdText = titleIdText;
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DisplayVersion = !String.IsNullOrEmpty(displayVersion) ? displayVersion : DisplayVersionDefault;
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if (enabled)
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{
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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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Enable();
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PreLoad();
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PtcProfiler.PreLoad();
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}
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else
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{
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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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}
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internal static void ClearMemoryStreams()
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{
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_infosStream.SetLength(0L);
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_codesStream.SetLength(0L);
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_relocsStream.SetLength(0L);
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_unwindInfosStream.SetLength(0L);
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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))
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{
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if (fileInfoBackup.Exists && fileInfoBackup.Length != 0L)
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{
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Load(fileNameBackup);
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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);
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}
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}
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private static bool Load(string fileName)
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{
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using (FileStream compressedStream = new FileStream(fileName, FileMode.Open))
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using (DeflateStream deflateStream = new DeflateStream(compressedStream, CompressionMode.Decompress, true))
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using (MemoryStream stream = new MemoryStream())
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using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
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{
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int hashSize = md5.HashSize / 8;
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deflateStream.CopyTo(stream);
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stream.Seek(0L, SeekOrigin.Begin);
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byte[] currentHash = new byte[hashSize];
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stream.Read(currentHash, 0, hashSize);
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byte[] expectedHash = md5.ComputeHash(stream);
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if (!CompareHash(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.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.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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byte[] infosBuf = new byte[header.InfosLen];
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byte[] codesBuf = new byte[header.CodesLen];
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byte[] relocsBuf = new byte[header.RelocsLen];
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byte[] unwindInfosBuf = new byte[header.UnwindInfosLen];
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stream.Read(infosBuf, 0, header.InfosLen);
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stream.Read(codesBuf, 0, header.CodesLen);
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stream.Read(relocsBuf, 0, header.RelocsLen);
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stream.Read(unwindInfosBuf, 0, header.UnwindInfosLen);
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try
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{
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PtcJumpTable = (PtcJumpTable)_binaryFormatter.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, 0, header.InfosLen);
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_codesStream.Write(codesBuf, 0, header.CodesLen);
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_relocsStream.Write(relocsBuf, 0, header.RelocsLen);
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_unwindInfosStream.Write(unwindInfosBuf, 0, header.UnwindInfosLen);
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return true;
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}
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}
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private static bool CompareHash(ReadOnlySpan<byte> currentHash, ReadOnlySpan<byte> expectedHash)
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{
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return currentHash.SequenceEqual(expectedHash);
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}
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private static Header ReadHeader(MemoryStream stream)
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{
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using (BinaryReader headerReader = new BinaryReader(stream, EncodingCache.UTF8NoBOM, true))
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{
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Header header = new Header();
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header.Magic = headerReader.ReadString();
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header.CacheFileVersion = headerReader.ReadInt32();
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header.FeatureInfo = headerReader.ReadUInt64();
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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(object state)
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{
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_waitEvent.Reset();
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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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_waitEvent.Set();
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}
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private static void Save(string fileName)
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{
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using (MemoryStream stream = new MemoryStream())
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using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
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{
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int hashSize = md5.HashSize / 8;
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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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_binaryFormatter.Serialize(stream, PtcJumpTable);
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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byte[] hash = md5.ComputeHash(stream);
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stream.Seek(0L, SeekOrigin.Begin);
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stream.Write(hash, 0, hashSize);
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using (FileStream compressedStream = new FileStream(fileName, FileMode.OpenOrCreate))
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using (DeflateStream deflateStream = new DeflateStream(compressedStream, SaveCompressionLevel, true))
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{
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try
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{
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stream.WriteTo(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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private static void WriteHeader(MemoryStream stream)
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{
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using (BinaryWriter headerWriter = new BinaryWriter(stream, EncodingCache.UTF8NoBOM, true))
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{
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headerWriter.Write((string)HeaderMagic); // Header.Magic
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headerWriter.Write((int)InternalVersion); // Header.CacheFileVersion
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headerWriter.Write((ulong)GetFeatureInfo()); // Header.FeatureInfo
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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, IntPtr pageTablePointer, JumpTable jumpTable)
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{
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if ((int)_infosStream.Length == 0 ||
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(int)_codesStream.Length == 0 ||
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(int)_relocsStream.Length == 0 ||
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(int)_unwindInfosStream.Length == 0)
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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 BinaryReader(_infosStream, EncodingCache.UTF8NoBOM, true))
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using (BinaryReader codesReader = new BinaryReader(_codesStream, EncodingCache.UTF8NoBOM, true))
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using (BinaryReader relocsReader = new BinaryReader(_relocsStream, EncodingCache.UTF8NoBOM, true))
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using (BinaryReader unwindInfosReader = new BinaryReader(_unwindInfosStream, EncodingCache.UTF8NoBOM, true))
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{
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int infosEntriesCount = (int)_infosStream.Length / InfoEntry.Stride;
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for (int i = 0; i < infosEntriesCount; i++)
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{
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InfoEntry infoEntry = ReadInfo(infosReader);
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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, pageTablePointer, jumpTable);
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}
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UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
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TranslatedFunction func = FastTranslate(code, unwindInfo, infoEntry.HighCq);
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funcs.AddOrUpdate((ulong)infoEntry.Address, func, (key, oldFunc) => func.HighCq && !oldFunc.HighCq ? func : oldFunc);
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}
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}
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if (_infosStream.Position < _infosStream.Length ||
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_codesStream.Position < _codesStream.Length ||
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_relocsStream.Position < _relocsStream.Length ||
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_unwindInfosStream.Position < _unwindInfosStream.Length)
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{
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throw new Exception("Could not reach the end of one or more memory streams.");
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}
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jumpTable.Initialize(PtcJumpTable, funcs);
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PtcJumpTable.WriteJumpTable(jumpTable, funcs);
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PtcJumpTable.WriteDynamicTable(jumpTable);
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}
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private static InfoEntry ReadInfo(BinaryReader infosReader)
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{
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InfoEntry infoEntry = new InfoEntry();
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infoEntry.Address = infosReader.ReadInt64();
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infoEntry.HighCq = infosReader.ReadBoolean();
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infoEntry.CodeLen = infosReader.ReadInt32();
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infoEntry.RelocEntriesCount = infosReader.ReadInt32();
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return infoEntry;
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}
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private static byte[] ReadCode(BinaryReader codesReader, int codeLen)
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{
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byte[] codeBuf = new byte[codeLen];
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codesReader.Read(codeBuf, 0, codeLen);
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return codeBuf;
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}
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private static RelocEntry[] GetRelocEntries(BinaryReader relocsReader, int relocEntriesCount)
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{
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RelocEntry[] relocEntries = new RelocEntry[relocEntriesCount];
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for (int i = 0; i < relocEntriesCount; i++)
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{
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int position = relocsReader.ReadInt32();
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int index = relocsReader.ReadInt32();
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relocEntries[i] = new RelocEntry(position, index);
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}
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return relocEntries;
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}
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private static void PatchCode(Span<byte> code, RelocEntry[] relocEntries, IntPtr pageTablePointer, JumpTable jumpTable)
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{
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foreach (RelocEntry relocEntry in relocEntries)
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{
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ulong imm;
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if (relocEntry.Index == PageTablePointerIndex)
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{
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imm = (ulong)pageTablePointer.ToInt64();
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}
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else if (relocEntry.Index == JumpPointerIndex)
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{
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imm = (ulong)jumpTable.JumpPointer.ToInt64();
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}
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else if (relocEntry.Index == DynamicPointerIndex)
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{
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imm = (ulong)jumpTable.DynamicPointer.ToInt64();
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}
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else if (Delegates.TryGetDelegateFuncPtrByIndex(relocEntry.Index, out IntPtr funcPtr))
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{
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imm = (ulong)funcPtr.ToInt64();
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}
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else
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{
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throw new Exception($"Unexpected reloc entry {relocEntry}.");
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}
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BinaryPrimitives.WriteUInt64LittleEndian(code.Slice(relocEntry.Position, 8), imm);
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}
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}
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private static UnwindInfo ReadUnwindInfo(BinaryReader unwindInfosReader)
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{
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int pushEntriesLength = unwindInfosReader.ReadInt32();
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UnwindPushEntry[] pushEntries = new UnwindPushEntry[pushEntriesLength];
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for (int i = 0; i < pushEntriesLength; i++)
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{
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int pseudoOp = unwindInfosReader.ReadInt32();
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int prologOffset = unwindInfosReader.ReadInt32();
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int regIndex = unwindInfosReader.ReadInt32();
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int stackOffsetOrAllocSize = unwindInfosReader.ReadInt32();
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pushEntries[i] = new UnwindPushEntry((UnwindPseudoOp)pseudoOp, prologOffset, regIndex, stackOffsetOrAllocSize);
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}
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int prologueSize = unwindInfosReader.ReadInt32();
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return new UnwindInfo(pushEntries, prologueSize);
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}
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private static TranslatedFunction FastTranslate(byte[] code, UnwindInfo unwindInfo, bool highCq)
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{
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CompiledFunction cFunc = new CompiledFunction(code, unwindInfo);
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IntPtr codePtr = JitCache.Map(cFunc);
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GuestFunction gFunc = Marshal.GetDelegateForFunctionPointer<GuestFunction>(codePtr);
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TranslatedFunction tFunc = new TranslatedFunction(gFunc, highCq);
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return tFunc;
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}
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internal static void MakeAndSaveTranslations(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, JumpTable jumpTable)
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{
|
|
if (PtcProfiler.ProfiledFuncs.Count == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
_translateCount = 0;
|
|
_rejitCount = 0;
|
|
|
|
ThreadPool.QueueUserWorkItem(TranslationLogger, (funcs.Count, PtcProfiler.ProfiledFuncs.Count));
|
|
|
|
int maxDegreeOfParallelism = (Environment.ProcessorCount * 3) / 4;
|
|
|
|
Parallel.ForEach(PtcProfiler.ProfiledFuncs, new ParallelOptions { MaxDegreeOfParallelism = maxDegreeOfParallelism }, (item, state) =>
|
|
{
|
|
ulong address = item.Key;
|
|
|
|
Debug.Assert(PtcProfiler.IsAddressInStaticCodeRange(address));
|
|
|
|
if (!funcs.ContainsKey(address))
|
|
{
|
|
TranslatedFunction func = Translator.Translate(memory, jumpTable, address, item.Value.mode, item.Value.highCq);
|
|
|
|
funcs.TryAdd(address, func);
|
|
|
|
if (func.HighCq)
|
|
{
|
|
jumpTable.RegisterFunction(address, func);
|
|
}
|
|
|
|
Interlocked.Increment(ref _translateCount);
|
|
}
|
|
else if (item.Value.highCq && !funcs[address].HighCq)
|
|
{
|
|
TranslatedFunction func = Translator.Translate(memory, jumpTable, address, item.Value.mode, highCq: true);
|
|
|
|
funcs[address] = func;
|
|
|
|
jumpTable.RegisterFunction(address, func);
|
|
|
|
Interlocked.Increment(ref _rejitCount);
|
|
}
|
|
|
|
if (State != PtcState.Enabled)
|
|
{
|
|
state.Stop();
|
|
}
|
|
});
|
|
|
|
_loggerEvent.Set();
|
|
|
|
if (_translateCount != 0 || _rejitCount != 0)
|
|
{
|
|
PtcJumpTable.Initialize(jumpTable);
|
|
|
|
PtcJumpTable.ReadJumpTable(jumpTable);
|
|
PtcJumpTable.ReadDynamicTable(jumpTable);
|
|
|
|
ThreadPool.QueueUserWorkItem(PreSave);
|
|
}
|
|
}
|
|
|
|
private static void TranslationLogger(object state)
|
|
{
|
|
const int refreshRate = 1; // Seconds.
|
|
|
|
(int funcsCount, int ProfiledFuncsCount) = ((int, int))state;
|
|
|
|
do
|
|
{
|
|
Logger.Info?.Print(LogClass.Ptc, $"{funcsCount + _translateCount} of {ProfiledFuncsCount} functions to translate - {_rejitCount} functions rejited");
|
|
}
|
|
while (!_loggerEvent.WaitOne(refreshRate * 1000));
|
|
|
|
Logger.Info?.Print(LogClass.Ptc, $"{funcsCount + _translateCount} of {ProfiledFuncsCount} functions to translate - {_rejitCount} functions rejited");
|
|
}
|
|
|
|
internal static void WriteInfoCodeReloc(long address, bool highCq, PtcInfo ptcInfo)
|
|
{
|
|
lock (_lock)
|
|
{
|
|
// WriteInfo.
|
|
_infosWriter.Write((long)address); // InfoEntry.Address
|
|
_infosWriter.Write((bool)highCq); // InfoEntry.HighCq
|
|
_infosWriter.Write((int)ptcInfo.CodeStream.Length); // InfoEntry.CodeLen
|
|
_infosWriter.Write((int)ptcInfo.RelocEntriesCount); // InfoEntry.RelocEntriesCount
|
|
|
|
// WriteCode.
|
|
ptcInfo.CodeStream.WriteTo(_codesStream);
|
|
|
|
// WriteReloc.
|
|
ptcInfo.RelocStream.WriteTo(_relocsStream);
|
|
|
|
// WriteUnwindInfo.
|
|
ptcInfo.UnwindInfoStream.WriteTo(_unwindInfosStream);
|
|
}
|
|
}
|
|
|
|
private static ulong GetFeatureInfo()
|
|
{
|
|
ulong featureInfo = 0ul;
|
|
|
|
featureInfo |= (Sse3.IsSupported ? 1ul : 0ul) << 0;
|
|
featureInfo |= (Pclmulqdq.IsSupported ? 1ul : 0ul) << 1;
|
|
featureInfo |= (Ssse3.IsSupported ? 1ul : 0ul) << 9;
|
|
featureInfo |= (Fma.IsSupported ? 1ul : 0ul) << 12;
|
|
featureInfo |= (Sse41.IsSupported ? 1ul : 0ul) << 19;
|
|
featureInfo |= (Sse42.IsSupported ? 1ul : 0ul) << 20;
|
|
featureInfo |= (Popcnt.IsSupported ? 1ul : 0ul) << 23;
|
|
featureInfo |= (Aes.IsSupported ? 1ul : 0ul) << 25;
|
|
featureInfo |= (Avx.IsSupported ? 1ul : 0ul) << 28;
|
|
featureInfo |= (Sse.IsSupported ? 1ul : 0ul) << 57;
|
|
featureInfo |= (Sse2.IsSupported ? 1ul : 0ul) << 58;
|
|
|
|
return featureInfo;
|
|
}
|
|
|
|
private struct Header
|
|
{
|
|
public string Magic;
|
|
|
|
public int CacheFileVersion;
|
|
public ulong FeatureInfo;
|
|
|
|
public int InfosLen;
|
|
public int CodesLen;
|
|
public int RelocsLen;
|
|
public int UnwindInfosLen;
|
|
}
|
|
|
|
private struct InfoEntry
|
|
{
|
|
public const int Stride = 17; // Bytes.
|
|
|
|
public long Address;
|
|
public bool HighCq;
|
|
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();
|
|
|
|
_infosWriter.Dispose();
|
|
|
|
_infosStream.Dispose();
|
|
_codesStream.Dispose();
|
|
_relocsStream.Dispose();
|
|
_unwindInfosStream.Dispose();
|
|
}
|
|
}
|
|
}
|
|
}
|