PPTC Follow-up. (#1712)
* Added support for offline invalidation, via PPTC, of low cq translations replaced by high cq translations; both on a single run and between runs. Added invalidation of .cache files in the event of reuse on a different user operating system. Added .info and .cache files invalidation in case of a failed stream decompression. Nits. * InternalVersion = 1712; * Nits. * Address comment. * Get rid of BinaryFormatter. Nits. * Move Ptc.LoadTranslations(). Nits. * Nits. * Fixed corner cases (in case backup copies have to be used). Added save logs. * Not core fixes. * Complement to the previous commit. Added load logs. Removed BinaryFormatter leftovers. * Add LoadTranslations log. * Nits. * Removed the search and management of LowCq overlapping functions. * Final increment of .info and .cache flags. * Nit. * GetIndirectFunctionAddress(): Validate that writing actually takes place in dynamic table memory range (and not elsewhere). * Fix Ptc.UpdateInfo() due to rebase. * Nit for retrigger Checks. * Nit for retrigger Checks.
This commit is contained in:
LDj3SNuD
GitHub
parent
10aa11ce13
commit
b5c215111d
16 changed files with 670 additions and 169 deletions
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@ -12,7 +12,7 @@ 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.Serialization.Formatters.Binary;
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using System.Security.Cryptography;
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using System.Threading;
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using System.Threading.Tasks;
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@ -22,7 +22,7 @@ namespace ARMeilleure.Translation.PTC
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{
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private const string HeaderMagic = "PTChd";
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private const int InternalVersion = 1519; //! To be incremented manually for each change to the ARMeilleure project.
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private const uint InternalVersion = 1713; //! 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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@ -34,6 +34,7 @@ namespace ARMeilleure.Translation.PTC
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internal const int JumpPointerIndex = -2; // Must be a negative value.
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internal const int DynamicPointerIndex = -3; // Must be a negative value.
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private const byte FillingByte = 0x00;
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private const CompressionLevel SaveCompressionLevel = CompressionLevel.Fastest;
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private static readonly MemoryStream _infosStream;
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@ -43,8 +44,6 @@ namespace ARMeilleure.Translation.PTC
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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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@ -54,7 +53,6 @@ namespace ARMeilleure.Translation.PTC
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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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@ -75,8 +73,6 @@ namespace ARMeilleure.Translation.PTC
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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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@ -174,26 +170,26 @@ namespace ARMeilleure.Translation.PTC
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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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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);
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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);
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Load(fileNameBackup, true);
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}
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}
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private static bool Load(string fileName)
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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 (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
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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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@ -247,6 +243,13 @@ namespace ARMeilleure.Translation.PTC
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return false;
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}
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if (header.OSPlatform != GetOSPlatform())
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{
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InvalidateCompressedStream(compressedStream);
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return false;
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}
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if (header.InfosLen % InfoEntry.Stride != 0)
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{
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InvalidateCompressedStream(compressedStream);
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@ -266,7 +269,7 @@ namespace ARMeilleure.Translation.PTC
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try
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{
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PtcJumpTable = (PtcJumpTable)_binaryFormatter.Deserialize(stream);
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PtcJumpTable = PtcJumpTable.Deserialize(stream);
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}
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catch
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{
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@ -281,9 +284,13 @@ namespace ARMeilleure.Translation.PTC
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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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long fileSize = new FileInfo(fileName).Length;
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Logger.Info?.Print(LogClass.Ptc, $"{(isBackup ? "Loaded Backup Translation Cache" : "Loaded Translation Cache")} (size: {fileSize} bytes, translated functions: {GetInfosEntriesCount()}).");
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return true;
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}
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private static bool CompareHash(ReadOnlySpan<byte> currentHash, ReadOnlySpan<byte> expectedHash)
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@ -299,8 +306,9 @@ namespace ARMeilleure.Translation.PTC
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header.Magic = headerReader.ReadString();
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header.CacheFileVersion = headerReader.ReadInt32();
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header.CacheFileVersion = headerReader.ReadUInt32();
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header.FeatureInfo = headerReader.ReadUInt64();
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header.OSPlatform = headerReader.ReadUInt32();
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header.InfosLen = headerReader.ReadInt32();
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header.CodesLen = headerReader.ReadInt32();
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@ -338,7 +346,7 @@ namespace ARMeilleure.Translation.PTC
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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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using (MD5 md5 = MD5.Create())
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{
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int hashSize = md5.HashSize / 8;
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@ -351,7 +359,7 @@ namespace ARMeilleure.Translation.PTC
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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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PtcJumpTable.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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@ -377,6 +385,10 @@ namespace ARMeilleure.Translation.PTC
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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, $"Saved Translation Cache (size: {fileSize} bytes, translated functions: {GetInfosEntriesCount()}).");
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}
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private static void WriteHeader(MemoryStream stream)
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@ -385,8 +397,9 @@ namespace ARMeilleure.Translation.PTC
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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((uint)InternalVersion); // Header.CacheFileVersion
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headerWriter.Write((ulong)GetFeatureInfo()); // Header.FeatureInfo
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headerWriter.Write((uint)GetOSPlatform()); // Header.OSPlatform
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headerWriter.Write((int)_infosStream.Length); // Header.InfosLen
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headerWriter.Write((int)_codesStream.Length); // Header.CodesLen
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@ -395,7 +408,7 @@ namespace ARMeilleure.Translation.PTC
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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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internal static void LoadTranslations(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, 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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@ -417,26 +430,44 @@ namespace ARMeilleure.Translation.PTC
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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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for (int i = 0; i < GetInfosEntriesCount(); 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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if (infoEntry.Stubbed)
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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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SkipCode(infoEntry.CodeLen);
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SkipReloc(infoEntry.RelocEntriesCount);
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SkipUnwindInfo(unwindInfosReader);
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}
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else if (infoEntry.HighCq || !PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) || !value.highCq)
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{
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byte[] code = ReadCode(codesReader, infoEntry.CodeLen);
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UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
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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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TranslatedFunction func = FastTranslate(code, infoEntry.GuestSize, unwindInfo, infoEntry.HighCq);
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PatchCode(code, relocEntries, memory.PageTablePointer, jumpTable);
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}
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funcs.AddOrUpdate(infoEntry.Address, func, (key, oldFunc) => func.HighCq && !oldFunc.HighCq ? func : oldFunc);
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UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
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TranslatedFunction func = FastTranslate(code, infoEntry.GuestSize, unwindInfo, infoEntry.HighCq);
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bool isAddressUnique = funcs.TryAdd(infoEntry.Address, func);
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Debug.Assert(isAddressUnique, $"The address 0x{infoEntry.Address:X16} is not unique.");
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}
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else
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{
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infoEntry.Stubbed = true;
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UpdateInfo(infoEntry);
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StubCode(infoEntry.CodeLen);
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StubReloc(infoEntry.RelocEntriesCount);
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StubUnwindInfo(unwindInfosReader);
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}
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}
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}
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@ -452,6 +483,13 @@ namespace ARMeilleure.Translation.PTC
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PtcJumpTable.WriteJumpTable(jumpTable, funcs);
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PtcJumpTable.WriteDynamicTable(jumpTable);
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Logger.Info?.Print(LogClass.Ptc, $"{funcs.Count} translated functions loaded");
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}
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private static int GetInfosEntriesCount()
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{
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return (int)_infosStream.Length / InfoEntry.Stride;
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}
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private static InfoEntry ReadInfo(BinaryReader infosReader)
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@ -461,12 +499,30 @@ namespace ARMeilleure.Translation.PTC
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infoEntry.Address = infosReader.ReadUInt64();
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infoEntry.GuestSize = infosReader.ReadUInt64();
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infoEntry.HighCq = infosReader.ReadBoolean();
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infoEntry.Stubbed = 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 void SkipCode(int codeLen)
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{
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_codesStream.Seek(codeLen, SeekOrigin.Current);
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}
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private static void SkipReloc(int relocEntriesCount)
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{
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_relocsStream.Seek(relocEntriesCount * RelocEntry.Stride, SeekOrigin.Current);
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}
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private static void SkipUnwindInfo(BinaryReader unwindInfosReader)
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{
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int pushEntriesLength = unwindInfosReader.ReadInt32();
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_unwindInfosStream.Seek(pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride, SeekOrigin.Current);
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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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@ -556,50 +612,79 @@ namespace ARMeilleure.Translation.PTC
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return tFunc;
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}
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private static void UpdateInfo(InfoEntry infoEntry)
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{
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_infosStream.Seek(-InfoEntry.Stride, SeekOrigin.Current);
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// WriteInfo.
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_infosWriter.Write((ulong)infoEntry.Address);
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_infosWriter.Write((ulong)infoEntry.GuestSize);
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_infosWriter.Write((bool)infoEntry.HighCq);
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_infosWriter.Write((bool)infoEntry.Stubbed);
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_infosWriter.Write((int)infoEntry.CodeLen);
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_infosWriter.Write((int)infoEntry.RelocEntriesCount);
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}
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private static void StubCode(int codeLen)
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{
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for (int i = 0; i < codeLen; i++)
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{
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_codesStream.WriteByte(FillingByte);
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}
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}
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private static void StubReloc(int relocEntriesCount)
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{
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for (int i = 0; i < relocEntriesCount * RelocEntry.Stride; i++)
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{
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_relocsStream.WriteByte(FillingByte);
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}
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}
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private static void StubUnwindInfo(BinaryReader unwindInfosReader)
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{
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int pushEntriesLength = unwindInfosReader.ReadInt32();
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for (int i = 0; i < pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride; i++)
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{
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_unwindInfosStream.WriteByte(FillingByte);
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}
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}
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internal static void MakeAndSaveTranslations(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, JumpTable jumpTable)
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{
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if (PtcProfiler.ProfiledFuncs.Count == 0)
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var profiledFuncsToTranslate = PtcProfiler.GetProfiledFuncsToTranslate(funcs);
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if (profiledFuncsToTranslate.Count == 0)
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{
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return;
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}
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_translateCount = 0;
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_rejitCount = 0;
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ThreadPool.QueueUserWorkItem(TranslationLogger, (funcs.Count, PtcProfiler.ProfiledFuncs.Count));
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ThreadPool.QueueUserWorkItem(TranslationLogger, profiledFuncsToTranslate.Count);
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int maxDegreeOfParallelism = (Environment.ProcessorCount * 3) / 4;
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Parallel.ForEach(PtcProfiler.ProfiledFuncs, new ParallelOptions { MaxDegreeOfParallelism = maxDegreeOfParallelism }, (item, state) =>
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Parallel.ForEach(profiledFuncsToTranslate, new ParallelOptions { MaxDegreeOfParallelism = maxDegreeOfParallelism }, (item, state) =>
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{
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ulong address = item.Key;
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Debug.Assert(PtcProfiler.IsAddressInStaticCodeRange(address));
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if (!funcs.ContainsKey(address))
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TranslatedFunction func = Translator.Translate(memory, jumpTable, address, item.Value.mode, item.Value.highCq);
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bool isAddressUnique = funcs.TryAdd(address, func);
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Debug.Assert(isAddressUnique, $"The address 0x{address:X16} is not unique.");
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if (func.HighCq)
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{
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TranslatedFunction func = Translator.Translate(memory, jumpTable, address, item.Value.mode, item.Value.highCq);
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funcs.TryAdd(address, func);
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if (func.HighCq)
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{
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jumpTable.RegisterFunction(address, func);
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}
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Interlocked.Increment(ref _translateCount);
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}
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else if (item.Value.highCq && !funcs[address].HighCq)
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{
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TranslatedFunction func = Translator.Translate(memory, jumpTable, address, item.Value.mode, highCq: true);
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funcs[address] = func;
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jumpTable.RegisterFunction(address, func);
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Interlocked.Increment(ref _rejitCount);
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}
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Interlocked.Increment(ref _translateCount);
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if (State != PtcState.Enabled)
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{
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state.Stop();
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@ -608,30 +693,27 @@ namespace ARMeilleure.Translation.PTC
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_loggerEvent.Set();
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if (_translateCount != 0 || _rejitCount != 0)
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{
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PtcJumpTable.Initialize(jumpTable);
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PtcJumpTable.Initialize(jumpTable);
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PtcJumpTable.ReadJumpTable(jumpTable);
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PtcJumpTable.ReadDynamicTable(jumpTable);
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PtcJumpTable.ReadJumpTable(jumpTable);
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PtcJumpTable.ReadDynamicTable(jumpTable);
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ThreadPool.QueueUserWorkItem(PreSave);
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}
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ThreadPool.QueueUserWorkItem(PreSave);
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}
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private static void TranslationLogger(object state)
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{
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const int refreshRate = 1; // Seconds.
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(int funcsCount, int ProfiledFuncsCount) = ((int, int))state;
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int profiledFuncsToTranslateCount = (int)state;
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do
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{
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Logger.Info?.Print(LogClass.Ptc, $"{funcsCount + _translateCount} of {ProfiledFuncsCount} functions to translate - {_rejitCount} functions rejited");
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Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {profiledFuncsToTranslateCount} functions translated");
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}
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while (!_loggerEvent.WaitOne(refreshRate * 1000));
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Logger.Info?.Print(LogClass.Ptc, $"{funcsCount + _translateCount} of {ProfiledFuncsCount} functions to translate - {_rejitCount} functions rejited");
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Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {profiledFuncsToTranslateCount} functions translated");
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}
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internal static void WriteInfoCodeReloc(ulong address, ulong guestSize, bool highCq, PtcInfo ptcInfo)
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@ -642,6 +724,7 @@ namespace ARMeilleure.Translation.PTC
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_infosWriter.Write((ulong)address); // InfoEntry.Address
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_infosWriter.Write((ulong)guestSize); // InfoEntry.GuestSize
|
||||
_infosWriter.Write((bool)highCq); // InfoEntry.HighCq
|
||||
_infosWriter.Write((bool)false); // InfoEntry.Stubbed
|
||||
_infosWriter.Write((int)ptcInfo.CodeStream.Length); // InfoEntry.CodeLen
|
||||
_infosWriter.Write((int)ptcInfo.RelocEntriesCount); // InfoEntry.RelocEntriesCount
|
||||
|
||||
|
|
@ -661,12 +744,25 @@ namespace ARMeilleure.Translation.PTC
|
|||
return (ulong)HardwareCapabilities.FeatureInfoEdx << 32 | (uint)HardwareCapabilities.FeatureInfoEcx;
|
||||
}
|
||||
|
||||
private static uint GetOSPlatform()
|
||||
{
|
||||
uint osPlatform = 0u;
|
||||
|
||||
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) ? 1u : 0u) << 0;
|
||||
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? 1u : 0u) << 1;
|
||||
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? 1u : 0u) << 2;
|
||||
osPlatform |= (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? 1u : 0u) << 3;
|
||||
|
||||
return osPlatform;
|
||||
}
|
||||
|
||||
private struct Header
|
||||
{
|
||||
public string Magic;
|
||||
|
||||
public int CacheFileVersion;
|
||||
public uint CacheFileVersion;
|
||||
public ulong FeatureInfo;
|
||||
public uint OSPlatform;
|
||||
|
||||
public int InfosLen;
|
||||
public int CodesLen;
|
||||
|
|
@ -676,11 +772,12 @@ namespace ARMeilleure.Translation.PTC
|
|||
|
||||
private struct InfoEntry
|
||||
{
|
||||
public const int Stride = 25; // Bytes.
|
||||
public const int Stride = 26; // Bytes.
|
||||
|
||||
public ulong Address;
|
||||
public ulong GuestSize;
|
||||
public bool HighCq;
|
||||
public bool Stubbed;
|
||||
public int CodeLen;
|
||||
public int RelocEntriesCount;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue