PPTC meets ExeFS Patching. (#1865)
* PPTC meets ExeFS Patching. * InternalVersion = 1865 * Ready! * Optimized the PtcProfiler Load/Save methods.
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7 changed files with 190 additions and 166 deletions
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@ -1,13 +1,15 @@
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using ARMeilleure.State;
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using Ryujinx.Common;
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using Ryujinx.Common.Logging;
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using System;
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using System.Buffers.Binary;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.IO.Compression;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Security.Cryptography;
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using System.Threading;
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using static ARMeilleure.Translation.PTC.PtcFormatter;
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@ -16,9 +18,9 @@ namespace ARMeilleure.Translation.PTC
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{
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public static class PtcProfiler
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{
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private const string HeaderMagic = "Phd";
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private const string OuterHeaderMagicString = "Pohd\0\0\0\0";
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private const uint InternalVersion = 1713; //! Not to be incremented manually for each change to the ARMeilleure project.
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private const uint InternalVersion = 1866; //! Not to be incremented manually for each change to the ARMeilleure project.
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private const int SaveInterval = 30; // Seconds.
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@ -26,13 +28,15 @@ namespace ARMeilleure.Translation.PTC
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private static readonly System.Timers.Timer _timer;
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private static readonly ulong _outerHeaderMagic;
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private static readonly ManualResetEvent _waitEvent;
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private static readonly object _lock;
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private static bool _disposed;
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private static byte[] _lastHash;
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private static Hash128 _lastHash;
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internal static Dictionary<ulong, FuncProfile> ProfiledFuncs { get; private set; }
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@ -46,6 +50,8 @@ namespace ARMeilleure.Translation.PTC
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_timer = new System.Timers.Timer((double)SaveInterval * 1000d);
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_timer.Elapsed += PreSave;
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_outerHeaderMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(OuterHeaderMagicString).AsSpan());
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_waitEvent = new ManualResetEvent(true);
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_lock = new object();
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@ -90,17 +96,15 @@ namespace ARMeilleure.Translation.PTC
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return address >= StaticCodeStart && address < StaticCodeStart + StaticCodeSize;
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}
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internal static ConcurrentQueue<(ulong address, ExecutionMode mode, bool highCq)> GetProfiledFuncsToTranslate(ConcurrentDictionary<ulong, TranslatedFunction> funcs)
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internal static ConcurrentQueue<(ulong address, FuncProfile funcProfile)> GetProfiledFuncsToTranslate(ConcurrentDictionary<ulong, TranslatedFunction> funcs)
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{
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var profiledFuncsToTranslate = new ConcurrentQueue<(ulong address, ExecutionMode mode, bool highCq)>();
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var profiledFuncsToTranslate = new ConcurrentQueue<(ulong address, FuncProfile funcProfile)>();
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foreach (var profiledFunc in ProfiledFuncs)
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{
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ulong address = profiledFunc.Key;
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if (!funcs.ContainsKey(address))
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if (!funcs.ContainsKey(profiledFunc.Key))
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{
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profiledFuncsToTranslate.Enqueue((address, profiledFunc.Value.Mode, profiledFunc.Value.HighCq));
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profiledFuncsToTranslate.Enqueue((profiledFunc.Key, profiledFunc.Value));
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}
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}
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@ -115,7 +119,7 @@ namespace ARMeilleure.Translation.PTC
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internal static void PreLoad()
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{
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_lastHash = Array.Empty<byte>();
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_lastHash = default;
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string fileNameActual = string.Concat(Ptc.CachePathActual, ".info");
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string fileNameBackup = string.Concat(Ptc.CachePathBackup, ".info");
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@ -141,70 +145,75 @@ namespace ARMeilleure.Translation.PTC
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private static bool Load(string fileName, bool isBackup)
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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 (MD5 md5 = MD5.Create())
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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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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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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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int hashSize = md5.HashSize / 8;
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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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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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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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if (outerHeader.InfoFileVersion != 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.InfoFileVersion != InternalVersion)
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if (outerHeader.Endianness != Ptc.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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try
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using (MemoryStream stream = new MemoryStream())
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{
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Debug.Assert(stream.Seek(0L, SeekOrigin.Begin) == 0L && stream.Length == 0L);
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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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Hash128 expectedHash = DeserializeStructure<Hash128>(stream);
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Hash128 actualHash = XXHash128.ComputeHash(GetReadOnlySpan(stream));
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if (actualHash != 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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ProfiledFuncs = Deserialize(stream);
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Debug.Assert(stream.Position == stream.Length);
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_lastHash = actualHash;
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}
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catch
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{
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ProfiledFuncs = new Dictionary<ulong, FuncProfile>();
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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_lastHash = expectedHash;
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}
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long fileSize = new FileInfo(fileName).Length;
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@ -214,30 +223,16 @@ namespace ARMeilleure.Translation.PTC
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return true;
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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(Stream 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.InfoFileVersion = headerReader.ReadUInt32();
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return header;
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}
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}
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private static Dictionary<ulong, FuncProfile> Deserialize(Stream stream)
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{
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return DeserializeDictionary<ulong, FuncProfile>(stream, (stream) => DeserializeStructure<FuncProfile>(stream));
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}
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private static ReadOnlySpan<byte> GetReadOnlySpan(MemoryStream memoryStream)
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{
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return new(memoryStream.GetBuffer(), (int)memoryStream.Position, (int)memoryStream.Length - (int)memoryStream.Position);
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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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@ -266,14 +261,20 @@ namespace ARMeilleure.Translation.PTC
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{
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int profiledFuncsCount;
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OuterHeader outerHeader = new OuterHeader();
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outerHeader.Magic = _outerHeaderMagic;
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outerHeader.InfoFileVersion = InternalVersion;
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outerHeader.Endianness = Ptc.GetEndianness();
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outerHeader.SetHeaderHash();
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using (MemoryStream stream = new MemoryStream())
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using (MD5 md5 = MD5.Create())
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{
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int hashSize = md5.HashSize / 8;
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Debug.Assert(stream.Seek(0L, SeekOrigin.Begin) == 0L && stream.Length == 0L);
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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WriteHeader(stream);
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stream.Seek((long)Unsafe.SizeOf<Hash128>(), SeekOrigin.Begin);
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lock (_lock)
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{
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@ -282,22 +283,26 @@ namespace ARMeilleure.Translation.PTC
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profiledFuncsCount = ProfiledFuncs.Count;
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}
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stream.Seek((long)hashSize, SeekOrigin.Begin);
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byte[] hash = md5.ComputeHash(stream);
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Debug.Assert(stream.Position == stream.Length);
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stream.Seek((long)Unsafe.SizeOf<Hash128>(), SeekOrigin.Begin);
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Hash128 hash = XXHash128.ComputeHash(GetReadOnlySpan(stream));
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stream.Seek(0L, SeekOrigin.Begin);
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stream.Write(hash, 0, hashSize);
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SerializeStructure(stream, hash);
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if (CompareHash(hash, _lastHash))
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if (hash == _lastHash)
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{
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return;
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}
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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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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.WriteTo(deflateStream);
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_lastHash = hash;
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@ -306,7 +311,7 @@ namespace ARMeilleure.Translation.PTC
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{
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compressedStream.Position = 0L;
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_lastHash = Array.Empty<byte>();
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_lastHash = default;
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}
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if (compressedStream.Position < compressedStream.Length)
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@ -324,26 +329,35 @@ namespace ARMeilleure.Translation.PTC
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}
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}
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private static void WriteHeader(Stream stream)
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{
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using (BinaryWriter headerWriter = new 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((uint)InternalVersion); // Header.InfoFileVersion
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}
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}
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private static void Serialize(Stream stream, Dictionary<ulong, FuncProfile> profiledFuncs)
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{
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SerializeDictionary(stream, profiledFuncs, (stream, structure) => SerializeStructure(stream, structure));
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}
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private struct Header
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[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 29*/)]
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private struct OuterHeader
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{
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public string Magic;
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public ulong Magic;
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public uint InfoFileVersion;
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public bool Endianness;
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public Hash128 HeaderHash;
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public void SetHeaderHash()
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{
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Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
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HeaderHash = XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>()));
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}
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public bool IsHeaderValid()
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{
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Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
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return XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>())) == HeaderHash;
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}
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 5*/)]
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