9db73f74cf
* ARMeilleure: Respect Fz flag for all floating point operations. This is a change in strategy for emulating the Fz FPCR flag. Before, it was set before instructions that "needed it" and reset after. However, this missed a few hot instructions like the multiplication instruction, and the entirety of A32. The new strategy is to set the Fz flag only in the following circumstances: - Set to match FPCR before translated functions/loop are executed. - Reset when calling SoftFloat methods, set when returning. - Reset when exiting execution. This allows us to remove the code around the existing Fz aware instructions, and get the accuracy benefits on all floating point instructions executed while in translated code. Single step executions now need to be called with a context wrapper - right now it just contains the Fz flag initialization, and won't actually do anything on ARM. This fixes a bug in Breath of the Wild where some physics interactions could randomly crash the game due to subnormal values not flushing to zero. This is draft right now because I need to answer the questions: - Does dotnet avoid changing the value of Mxcsr? - Is it a good idea to assume that? Or should the flag set/restore be done on every managed method call, not just softfloat? - If we assume that, do we want a unit test to verify the behaviour? I recommend testing a bunch of games, especially games affected when this was originally added, such as #1611. * Remove unused method * Use FMA for Fmadd, Fmsub, Fnmadd, Fnmsub, Fmla, Fmls ...when available. Similar implementation to A32 * Use FMA for Frecps, Frsqrts * Don't set DAZ. * Add round mode to ARM FP mode * Fix mistakes * Add test for FP state when calling managed methods * Add explanatory comment to test. * Cleanup * Add A64 FPCR flags * Vrintx_S A32 fast path on A64 backend * Address feedback 1, re-enable DAZ * Fix FMA instructions By Elem * Address feedback
1131 lines
39 KiB
C#
1131 lines
39 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.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 Ryujinx.Common.Memory;
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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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using Arm64HardwareCapabilities = ARMeilleure.CodeGen.Arm64.HardwareCapabilities;
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using X86HardwareCapabilities = ARMeilleure.CodeGen.X86.HardwareCapabilities;
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class Ptc : IPtcLoadState
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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 = 4626; //! 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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public static readonly Symbol PageTableSymbol = new(SymbolType.Special, 1);
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public static readonly Symbol CountTableSymbol = new(SymbolType.Special, 2);
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public 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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public PtcProfiler Profiler { get; }
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// Carriers.
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private MemoryStream _infosStream;
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private List<byte[]> _codesList;
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private MemoryStream _relocsStream;
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private MemoryStream _unwindInfosStream;
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private readonly ulong _outerHeaderMagic;
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private readonly ulong _innerHeaderMagic;
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private readonly ManualResetEvent _waitEvent;
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private readonly object _lock;
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private bool _disposed;
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public string TitleIdText { get; private set; }
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public string DisplayVersion { get; private set; }
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private MemoryManagerType _memoryMode;
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public string CachePathActual { get; private set; }
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public string CachePathBackup { get; private set; }
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public PtcState State { get; private set; }
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// Progress reporting helpers.
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private volatile int _translateCount;
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private volatile int _translateTotalCount;
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public event Action<PtcLoadingState, int, int> PtcStateChanged;
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public Ptc()
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{
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Profiler = new PtcProfiler(this);
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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 void Initialize(string titleIdText, string displayVersion, bool enabled, MemoryManagerType memoryMode)
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{
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Wait();
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Profiler.Wait();
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Profiler.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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Profiler.PreLoad();
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Enable();
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}
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private void InitializeCarriers()
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{
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_infosStream = MemoryStreamManager.Shared.GetStream();
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_codesList = new List<byte[]>();
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_relocsStream = MemoryStreamManager.Shared.GetStream();
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_unwindInfosStream = MemoryStreamManager.Shared.GetStream();
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}
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private 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 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 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 void PreLoad()
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{
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string fileNameActual = $"{CachePathActual}.cache";
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string fileNameBackup = $"{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 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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if (outerHeader.Architecture != (uint)RuntimeInformation.ProcessArchitecture)
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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 void InvalidateCompressedStream(FileStream compressedStream)
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{
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compressedStream.SetLength(0L);
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}
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private 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 = $"{CachePathActual}.cache";
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string fileNameBackup = $"{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 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.Architecture = (uint)RuntimeInformation.ProcessArchitecture;
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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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public 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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|
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long infosStreamLength = _infosStream.Length;
|
|
long relocsStreamLength = _relocsStream.Length;
|
|
long unwindInfosStreamLength = _unwindInfosStream.Length;
|
|
|
|
_infosStream.Seek(0L, SeekOrigin.Begin);
|
|
_relocsStream.Seek(0L, SeekOrigin.Begin);
|
|
_unwindInfosStream.Seek(0L, SeekOrigin.Begin);
|
|
|
|
using (BinaryReader relocsReader = new(_relocsStream, EncodingCache.UTF8NoBOM, true))
|
|
using (BinaryReader unwindInfosReader = new(_unwindInfosStream, EncodingCache.UTF8NoBOM, true))
|
|
{
|
|
for (int index = 0; index < GetEntriesCount(); index++)
|
|
{
|
|
InfoEntry infoEntry = DeserializeStructure<InfoEntry>(_infosStream);
|
|
|
|
if (infoEntry.Stubbed)
|
|
{
|
|
SkipCode(index, infoEntry.CodeLength);
|
|
SkipReloc(infoEntry.RelocEntriesCount);
|
|
SkipUnwindInfo(unwindInfosReader);
|
|
|
|
continue;
|
|
}
|
|
|
|
bool isEntryChanged = infoEntry.Hash != ComputeHash(translator.Memory, infoEntry.Address, infoEntry.GuestSize);
|
|
|
|
if (isEntryChanged || (!infoEntry.HighCq && Profiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) && value.HighCq))
|
|
{
|
|
infoEntry.Stubbed = true;
|
|
infoEntry.CodeLength = 0;
|
|
UpdateInfo(infoEntry);
|
|
|
|
StubCode(index);
|
|
StubReloc(infoEntry.RelocEntriesCount);
|
|
StubUnwindInfo(unwindInfosReader);
|
|
|
|
if (isEntryChanged)
|
|
{
|
|
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, infoEntry.GuestSize, 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 int GetEntriesCount()
|
|
{
|
|
return _codesList.Count;
|
|
}
|
|
|
|
[Conditional("DEBUG")]
|
|
private void SkipCode(int index, int codeLength)
|
|
{
|
|
Debug.Assert(_codesList[index].Length == 0);
|
|
Debug.Assert(codeLength == 0);
|
|
}
|
|
|
|
private void SkipReloc(int relocEntriesCount)
|
|
{
|
|
_relocsStream.Seek(relocEntriesCount * RelocEntry.Stride, SeekOrigin.Current);
|
|
}
|
|
|
|
private void SkipUnwindInfo(BinaryReader unwindInfosReader)
|
|
{
|
|
int pushEntriesLength = unwindInfosReader.ReadInt32();
|
|
|
|
_unwindInfosStream.Seek(pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride, SeekOrigin.Current);
|
|
}
|
|
|
|
private byte[] ReadCode(int index, int codeLength)
|
|
{
|
|
Debug.Assert(_codesList[index].Length == codeLength);
|
|
|
|
return _codesList[index];
|
|
}
|
|
|
|
private 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 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 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 TranslatedFunction FastTranslate(
|
|
byte[] code,
|
|
Counter<uint> callCounter,
|
|
ulong guestSize,
|
|
UnwindInfo unwindInfo,
|
|
bool highCq)
|
|
{
|
|
var cFunc = new CompiledFunction(code, unwindInfo, RelocInfo.Empty);
|
|
var gFunc = cFunc.MapWithPointer<GuestFunction>(out IntPtr gFuncPointer);
|
|
|
|
return new TranslatedFunction(gFunc, gFuncPointer, callCounter, guestSize, highCq);
|
|
}
|
|
|
|
private void UpdateInfo(InfoEntry infoEntry)
|
|
{
|
|
_infosStream.Seek(-Unsafe.SizeOf<InfoEntry>(), SeekOrigin.Current);
|
|
|
|
SerializeStructure(_infosStream, infoEntry);
|
|
}
|
|
|
|
private void StubCode(int index)
|
|
{
|
|
_codesList[index] = Array.Empty<byte>();
|
|
}
|
|
|
|
private void StubReloc(int relocEntriesCount)
|
|
{
|
|
for (int i = 0; i < relocEntriesCount * RelocEntry.Stride; i++)
|
|
{
|
|
_relocsStream.WriteByte(FillingByte);
|
|
}
|
|
}
|
|
|
|
private void StubUnwindInfo(BinaryReader unwindInfosReader)
|
|
{
|
|
int pushEntriesLength = unwindInfosReader.ReadInt32();
|
|
|
|
for (int i = 0; i < pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride; i++)
|
|
{
|
|
_unwindInfosStream.WriteByte(FillingByte);
|
|
}
|
|
}
|
|
|
|
public void MakeAndSaveTranslations(Translator translator)
|
|
{
|
|
var profiledFuncsToTranslate = Profiler.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(Profiler.IsAddressInStaticCodeRange(address));
|
|
|
|
TranslatedFunction func = translator.Translate(address, item.funcProfile.Mode, item.funcProfile.HighCq);
|
|
|
|
bool isAddressUnique = translator.Functions.TryAdd(address, func.GuestSize, 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 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));
|
|
}
|
|
|
|
public static Hash128 ComputeHash(IMemoryManager memory, ulong address, ulong guestSize)
|
|
{
|
|
return XXHash128.ComputeHash(memory.GetSpan(address, checked((int)(guestSize))));
|
|
}
|
|
|
|
public 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 void WriteCode(ReadOnlySpan<byte> code)
|
|
{
|
|
_codesList.Add(code.ToArray());
|
|
}
|
|
|
|
public static bool GetEndianness()
|
|
{
|
|
return BitConverter.IsLittleEndian;
|
|
}
|
|
|
|
private static FeatureInfo GetFeatureInfo()
|
|
{
|
|
if (RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
|
|
{
|
|
return new FeatureInfo(
|
|
(ulong)Arm64HardwareCapabilities.LinuxFeatureInfoHwCap,
|
|
(ulong)Arm64HardwareCapabilities.LinuxFeatureInfoHwCap2,
|
|
(ulong)Arm64HardwareCapabilities.MacOsFeatureInfo,
|
|
0,
|
|
0);
|
|
}
|
|
else if (RuntimeInformation.ProcessArchitecture == Architecture.X64)
|
|
{
|
|
return new FeatureInfo(
|
|
(ulong)X86HardwareCapabilities.FeatureInfo1Ecx,
|
|
(ulong)X86HardwareCapabilities.FeatureInfo1Edx,
|
|
(ulong)X86HardwareCapabilities.FeatureInfo7Ebx,
|
|
(ulong)X86HardwareCapabilities.FeatureInfo7Ecx,
|
|
(ulong)X86HardwareCapabilities.Xcr0InfoEax);
|
|
}
|
|
else
|
|
{
|
|
return new FeatureInfo(0, 0, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
private 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 = 86*/)]
|
|
private struct OuterHeader
|
|
{
|
|
public ulong Magic;
|
|
|
|
public uint CacheFileVersion;
|
|
|
|
public bool Endianness;
|
|
public FeatureInfo FeatureInfo;
|
|
public byte MemoryManagerMode;
|
|
public uint OSPlatform;
|
|
public uint Architecture;
|
|
|
|
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 = 40*/)]
|
|
private record struct FeatureInfo(ulong FeatureInfo0, ulong FeatureInfo1, ulong FeatureInfo2, ulong FeatureInfo3, ulong FeatureInfo4);
|
|
|
|
[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 void Enable()
|
|
{
|
|
State = PtcState.Enabled;
|
|
}
|
|
|
|
public void Continue()
|
|
{
|
|
if (State == PtcState.Enabled)
|
|
{
|
|
State = PtcState.Continuing;
|
|
}
|
|
}
|
|
|
|
public void Close()
|
|
{
|
|
if (State == PtcState.Enabled ||
|
|
State == PtcState.Continuing)
|
|
{
|
|
State = PtcState.Closing;
|
|
}
|
|
}
|
|
|
|
public void Disable()
|
|
{
|
|
State = PtcState.Disabled;
|
|
}
|
|
|
|
private void Wait()
|
|
{
|
|
_waitEvent.WaitOne();
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (!_disposed)
|
|
{
|
|
_disposed = true;
|
|
|
|
Wait();
|
|
_waitEvent.Dispose();
|
|
|
|
DisposeCarriers();
|
|
}
|
|
}
|
|
}
|
|
}
|