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Refactor PtcInfo (#2625)

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* Refactor `PtcInfo`

This change reduces the coupling of `PtcInfo` by moving relocation
tracking to the backend. `RelocEntry`s remains as `RelocEntry`s through
out the pipeline until it actually needs to be written to the PTC
streams. Keeping this representation makes inspecting and manipulating
relocations after compilations less painful. This is something I needed
to do to patch relocations to 0 to diff dumps.

Contributes to #1125.

* Turn `Symbol` & `RelocInfo` into readonly structs

* Add documentation to `CompiledFunction`

* Remove `Compiler.Compile<T>`

Remove `Compiler.Compile<T>` and replace it by `Map<T>` of the
`CompiledFunction` returned.
This commit is contained in:
FICTURE7 2021-09-14 03:23:37 +04:00 committed by GitHub
parent ac4ec1a015
commit a9343c9364
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 256 additions and 247 deletions
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43
ARMeilleure/CodeGen/CompiledFunction.cs
View file

@ -1,17 +1,56 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.CodeGen.Unwinding;
using ARMeilleure.Translation.Cache;
using System;
using System.Runtime.InteropServices;
namespace ARMeilleure.CodeGen
{
struct CompiledFunction
/// <summary>
/// Represents a compiled function.
/// </summary>
readonly struct CompiledFunction
{
/// <summary>
/// Gets the machine code of the <see cref="CompiledFunction"/>.
/// </summary>
public byte[] Code { get; }
/// <summary>
/// Gets the <see cref="Unwinding.UnwindInfo"/> of the <see cref="CompiledFunction"/>.
/// </summary>
public UnwindInfo UnwindInfo { get; }
public CompiledFunction(byte[] code, UnwindInfo unwindInfo)
/// <summary>
/// Gets the <see cref="Linking.RelocInfo"/> of the <see cref="CompiledFunction"/>.
/// </summary>
public RelocInfo RelocInfo { get; }
/// <summary>
/// Initializes a new instance of the <see cref="CompiledFunction"/> struct with the specified machine code,
/// unwind info and relocation info.
/// </summary>
/// <param name="code">Machine code</param>
/// <param name="unwindInfo">Unwind info</param>
/// <param name="relocInfo">Relocation info</param>
internal CompiledFunction(byte[] code, UnwindInfo unwindInfo, RelocInfo relocInfo)
{
Code = code;
UnwindInfo = unwindInfo;
RelocInfo = relocInfo;
}
/// <summary>
/// Maps the <see cref="CompiledFunction"/> onto the <see cref="JitCache"/> and returns a delegate of type
/// <typeparamref name="T"/> pointing to the mapped function.
/// </summary>
/// <typeparam name="T">Type of delegate</typeparam>
/// <returns>A delegate of type <typeparamref name="T"/> pointing to the mapped function</returns>
public T Map<T>()
{
IntPtr codePtr = JitCache.Map(this);
return Marshal.GetDelegateForFunctionPointer<T>(codePtr);
}
}
}

38
ARMeilleure/CodeGen/Linking/RelocEntry.cs Normal file
View file

@ -0,0 +1,38 @@
namespace ARMeilleure.CodeGen.Linking
{
/// <summary>
/// Represents a relocation.
/// </summary>
readonly struct RelocEntry
{
public const int Stride = 13; // Bytes.
/// <summary>
/// Gets the position of the relocation.
/// </summary>
public int Position { get; }
/// <summary>
/// Gets the <see cref="Symbol"/> of the relocation.
/// </summary>
public Symbol Symbol { get; }
/// <summary>
/// Initializes a new instance of the <see cref="RelocEntry"/> struct with the specified position and
/// <see cref="Symbol"/>.
/// </summary>
/// <param name="position">Position of relocation</param>
/// <param name="symbol">Symbol of relocation</param>
public RelocEntry(int position, Symbol symbol)
{
Position = position;
Symbol = symbol;
}
/// <inheritdoc/>
public override string ToString()
{
return $"({nameof(Position)} = {Position}, {nameof(Symbol)} = {Symbol})";
}
}
}

32
ARMeilleure/CodeGen/Linking/RelocInfo.cs Normal file
View file

@ -0,0 +1,32 @@
using System;
namespace ARMeilleure.CodeGen.Linking
{
/// <summary>
/// Represents relocation information about a <see cref="CompiledFunction"/>.
/// </summary>
readonly struct RelocInfo
{
/// <summary>
/// Gets an empty <see cref="RelocInfo"/>.
/// </summary>
public static RelocInfo Empty { get; } = new RelocInfo(null);
private readonly RelocEntry[] _entries;
/// <summary>
/// Gets the set of <see cref="RelocEntry"/>.
/// </summary>
public ReadOnlySpan<RelocEntry> Entries => _entries ?? Array.Empty<RelocEntry>();
/// <summary>
/// Initializes a new instance of the <see cref="RelocInfo"/> struct with the specified set of
/// <see cref="RelocEntry"/>.
/// </summary>
/// <param name="entries">Set of <see cref="RelocInfo"/> to use</param>
public RelocInfo(RelocEntry[] entries)
{
_entries = entries ?? Array.Empty<RelocEntry>();
}
}
}

4
ARMeilleure/Translation/PTC/Symbol.cs → ARMeilleure/CodeGen/Linking/Symbol.cs
View file

@ -1,11 +1,11 @@
using System;
namespace ARMeilleure.Translation.PTC
namespace ARMeilleure.CodeGen.Linking
{
/// <summary>
/// Represents a symbol.
/// </summary>
struct Symbol
readonly struct Symbol
{
private readonly ulong _value;

8
ARMeilleure/Translation/PTC/SymbolType.cs → ARMeilleure/CodeGen/Linking/SymbolType.cs
View file

@ -1,4 +1,4 @@
namespace ARMeilleure.Translation.PTC
namespace ARMeilleure.CodeGen.Linking
{
/// <summary>
/// Types of <see cref="Symbol"/>.
@ -11,17 +11,17 @@
None,
/// <summary>
/// Refers to an entry in <see cref="Delegates"/>.
/// Refers to an entry in <see cref="Translation.Delegates"/>.
/// </summary>
DelegateTable,
/// <summary>
/// Refers to an entry in <see cref="Translator.FunctionTable"/>.
/// Refers to an entry in <see cref="Translation.Translator.FunctionTable"/>.
/// </summary>
FunctionTable,
/// <summary>
/// Refers to a special symbol which is handled by <see cref="Ptc.PatchCode"/>.
/// Refers to a special symbol which is handled by <see cref="Translation.PTC.Ptc.PatchCode"/>.
/// </summary>
Special
}

33
ARMeilleure/CodeGen/X86/Assembler.cs
View file

@ -1,6 +1,7 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation.PTC;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
@ -61,12 +62,12 @@ namespace ARMeilleure.CodeGen.X86
}
}
private static InstructionInfo[] _instTable;
private readonly static InstructionInfo[] _instTable;
private Stream _stream;
private readonly Stream _stream;
private PtcInfo _ptcInfo;
private bool _ptcDisabled;
public List<RelocEntry> Relocs { get; }
public bool HasRelocs => Relocs != null;
static Assembler()
{
@ -294,12 +295,10 @@ namespace ARMeilleure.CodeGen.X86
_instTable[(int)inst] = info;
}
public Assembler(Stream stream, PtcInfo ptcInfo = null)
public Assembler(Stream stream, bool relocatable)
{
_stream = stream;
_ptcInfo = ptcInfo;
_ptcDisabled = ptcInfo == null;
Relocs = relocatable ? new List<RelocEntry>() : null;
}
public void Add(Operand dest, Operand source, OperandType type)
@ -498,7 +497,7 @@ namespace ARMeilleure.CodeGen.X86
public void Jcc(X86Condition condition, long offset)
{
if (_ptcDisabled && ConstFitsOnS8(offset))
if (!HasRelocs && ConstFitsOnS8(offset))
{
WriteByte((byte)(0x70 | (int)condition));
@ -519,7 +518,7 @@ namespace ARMeilleure.CodeGen.X86
public void Jmp(long offset)
{
if (_ptcDisabled && ConstFitsOnS8(offset))
if (!HasRelocs && ConstFitsOnS8(offset))
{
WriteByte(0xeb);
@ -980,9 +979,9 @@ namespace ARMeilleure.CodeGen.X86
WriteByte((byte)(info.OpRImm64 + (dest.GetRegister().Index & 0b111)));
if (_ptcInfo != default && source.Relocatable)
if (HasRelocs && source.Relocatable)
{
_ptcInfo.WriteRelocEntry(new RelocEntry((int)_stream.Position, source.Symbol));
Relocs.Add(new RelocEntry((int)_stream.Position, source.Symbol));
}
WriteUInt64(imm);
@ -1396,9 +1395,9 @@ namespace ARMeilleure.CodeGen.X86
return ConstFitsOnS32(value);
}
public static int GetJccLength(long offset, bool ptcDisabled = true)
public static int GetJccLength(long offset, bool relocatable = false)
{
if (ptcDisabled && ConstFitsOnS8(offset < 0 ? offset - 2 : offset))
if (!relocatable && ConstFitsOnS8(offset < 0 ? offset - 2 : offset))
{
return 2;
}
@ -1412,9 +1411,9 @@ namespace ARMeilleure.CodeGen.X86
}
}
public static int GetJmpLength(long offset, bool ptcDisabled = true)
public static int GetJmpLength(long offset, bool relocatable = false)
{
if (ptcDisabled && ConstFitsOnS8(offset < 0 ? offset - 2 : offset))
if (!relocatable && ConstFitsOnS8(offset < 0 ? offset - 2 : offset))
{
return 2;
}

61
ARMeilleure/CodeGen/X86/CodeGenContext.cs
View file

@ -1,7 +1,7 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.CodeGen.RegisterAllocators;
using ARMeilleure.Common;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation.PTC;
using System;
using System.Collections.Generic;
using System.Diagnostics;
@ -13,10 +13,8 @@ namespace ARMeilleure.CodeGen.X86
{
private const int ReservedBytesForJump = 1;
private Stream _stream;
private PtcInfo _ptcInfo;
private bool _ptcDisabled;
private readonly Stream _stream;
private readonly bool _relocatable;
public int StreamOffset => (int)_stream.Length;
@ -29,20 +27,15 @@ namespace ARMeilleure.CodeGen.X86
public int CallArgsRegionSize { get; }
public int XmmSaveRegionSize { get; }
private long[] _blockOffsets;
private readonly long[] _blockOffsets;
private struct Jump
{
public bool IsConditional { get; }
public X86Condition Condition { get; }
public BasicBlock Target { get; }
public long JumpPosition { get; }
public long RelativeOffset { get; set; }
public int InstSize { get; set; }
public Jump(BasicBlock target, long jumpPosition, int instSize = 0)
@ -70,33 +63,26 @@ namespace ARMeilleure.CodeGen.X86
}
}
private List<Jump> _jumps;
private readonly List<Jump> _jumps;
private X86Condition _jNearCondition;
private long _jNearPosition;
private int _jNearLength;
public CodeGenContext(Stream stream, AllocationResult allocResult, int maxCallArgs, int blocksCount, PtcInfo ptcInfo = null)
public CodeGenContext(Stream stream, AllocationResult allocResult, int maxCallArgs, int blocksCount, bool relocatable)
{
_stream = stream;
AllocResult = allocResult;
Assembler = new Assembler(stream, ptcInfo);
CallArgsRegionSize = GetCallArgsRegionSize(allocResult, maxCallArgs, out int xmmSaveRegionSize);
XmmSaveRegionSize = xmmSaveRegionSize;
_relocatable = relocatable;
_blockOffsets = new long[blocksCount];
_jumps = new List<Jump>();
_ptcInfo = ptcInfo;
_ptcDisabled = ptcInfo == null;
AllocResult = allocResult;
Assembler = new Assembler(stream, relocatable);
CallArgsRegionSize = GetCallArgsRegionSize(allocResult, maxCallArgs, out int xmmSaveRegionSize);
XmmSaveRegionSize = xmmSaveRegionSize;
}
private int GetCallArgsRegionSize(AllocationResult allocResult, int maxCallArgs, out int xmmSaveRegionSize)
private static int GetCallArgsRegionSize(AllocationResult allocResult, int maxCallArgs, out int xmmSaveRegionSize)
{
// We need to add 8 bytes to the total size, as the call to this
// function already pushed 8 bytes (the return address).
@ -144,7 +130,7 @@ namespace ARMeilleure.CodeGen.X86
public void JumpTo(BasicBlock target)
{
if (_ptcDisabled)
if (!_relocatable)
{
_jumps.Add(new Jump(target, _stream.Position));
@ -160,7 +146,7 @@ namespace ARMeilleure.CodeGen.X86
public void JumpTo(X86Condition condition, BasicBlock target)
{
if (_ptcDisabled)
if (!_relocatable)
{
_jumps.Add(new Jump(condition, target, _stream.Position));
@ -178,7 +164,7 @@ namespace ARMeilleure.CodeGen.X86
{
_jNearCondition = condition;
_jNearPosition = _stream.Position;
_jNearLength = Assembler.GetJccLength(0, _ptcDisabled);
_jNearLength = Assembler.GetJccLength(0, _relocatable);
_stream.Seek(_jNearLength, SeekOrigin.Current);
}
@ -191,7 +177,7 @@ namespace ARMeilleure.CodeGen.X86
long offset = currentPosition - (_jNearPosition + _jNearLength);
Debug.Assert(_jNearLength == Assembler.GetJccLength(offset, _ptcDisabled), "Relative offset doesn't fit on near jump.");
Debug.Assert(_jNearLength == Assembler.GetJccLength(offset, _relocatable), "Relative offset doesn't fit on near jump.");
Assembler.Jcc(_jNearCondition, offset);
@ -206,7 +192,7 @@ namespace ARMeilleure.CodeGen.X86
}
}
public byte[] GetCode()
public (byte[], RelocInfo) GetCode()
{
// Write jump relative offsets.
bool modified;
@ -223,7 +209,7 @@ namespace ARMeilleure.CodeGen.X86
long offset = jumpTarget - jump.JumpPosition;
if (_ptcDisabled)
if (!_relocatable)
{
if (offset < 0)
{
@ -300,7 +286,7 @@ namespace ARMeilleure.CodeGen.X86
using (MemoryStream codeStream = new MemoryStream())
{
Assembler assembler = new Assembler(codeStream, _ptcInfo);
Assembler assembler = new Assembler(codeStream, _relocatable);
for (int index = 0; index < _jumps.Count; index++)
{
@ -309,7 +295,7 @@ namespace ARMeilleure.CodeGen.X86
Span<byte> buffer = new byte[jump.JumpPosition - _stream.Position];
_stream.Read(buffer);
_stream.Seek(_ptcDisabled ? ReservedBytesForJump : jump.InstSize, SeekOrigin.Current);
_stream.Seek(!_relocatable ? ReservedBytesForJump : jump.InstSize, SeekOrigin.Current);
codeStream.Write(buffer);
@ -325,7 +311,12 @@ namespace ARMeilleure.CodeGen.X86
_stream.CopyTo(codeStream);
return codeStream.ToArray();
var code = codeStream.ToArray();
var relocInfo = Assembler.HasRelocs
? new RelocInfo(Assembler.Relocs.ToArray())
: RelocInfo.Empty;
return (code, relocInfo);
}
}
}

24
ARMeilleure/CodeGen/X86/CodeGenerator.cs
View file

@ -1,3 +1,4 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.CodeGen.Optimizations;
using ARMeilleure.CodeGen.RegisterAllocators;
using ARMeilleure.CodeGen.Unwinding;
@ -5,7 +6,6 @@ using ARMeilleure.Common;
using ARMeilleure.Diagnostics;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using ARMeilleure.Translation.PTC;
using System;
using System.Collections.Generic;
using System.Diagnostics;
@ -91,7 +91,7 @@ namespace ARMeilleure.CodeGen.X86
_instTable[(int)inst] = func;
}
public static CompiledFunction Generate(CompilerContext cctx, PtcInfo ptcInfo = null)
public static CompiledFunction Generate(CompilerContext cctx)
{
ControlFlowGraph cfg = cctx.Cfg;
@ -149,14 +149,14 @@ namespace ARMeilleure.CodeGen.X86
Logger.StartPass(PassName.CodeGeneration);
using (MemoryStream stream = new MemoryStream())
{
CodeGenContext context = new CodeGenContext(stream, allocResult, maxCallArgs, cfg.Blocks.Count, ptcInfo);
bool relocatable = (cctx.Options & CompilerOptions.Relocatable) != 0;
using MemoryStream stream = new();
CodeGenContext context = new(stream, allocResult, maxCallArgs, cfg.Blocks.Count, relocatable);
UnwindInfo unwindInfo = WritePrologue(context);
ptcInfo?.WriteUnwindInfo(unwindInfo);
for (BasicBlock block = cfg.Blocks.First; block != null; block = block.ListNext)
{
context.EnterBlock(block);
@ -185,17 +185,11 @@ namespace ARMeilleure.CodeGen.X86
}
}
byte[] code = context.GetCode();
if (ptcInfo != null)
{
ptcInfo.Code = code;
}
(byte[] code, RelocInfo relocInfo) = context.GetCode();
Logger.EndPass(PassName.CodeGeneration);
return new CompiledFunction(code, unwindInfo);
}
return new CompiledFunction(code, unwindInfo, relocInfo);
}
private static void GenerateOperation(CodeGenContext context, Operation operation)

2
ARMeilleure/Instructions/InstEmitFlowHelper.cs
View file

@ -1,8 +1,8 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.State;
using ARMeilleure.Translation;
using ARMeilleure.Translation.Cache;
using ARMeilleure.Translation.PTC;
using static ARMeilleure.Instructions.InstEmitHelper;

2
ARMeilleure/IntermediateRepresentation/Operand.cs
View file

@ -1,5 +1,5 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.Common;
using ARMeilleure.Translation.PTC;
using System;
using System.Collections.Generic;
using System.Diagnostics;

4
ARMeilleure/Signal/NativeSignalHandler.cs
View file

@ -261,7 +261,7 @@ namespace ARMeilleure.Signal
OperandType[] argTypes = new OperandType[] { OperandType.I32, OperandType.I64, OperandType.I64 };
return Compiler.Compile<UnixExceptionHandler>(cfg, argTypes, OperandType.None, CompilerOptions.HighCq);
return Compiler.Compile(cfg, argTypes, OperandType.None, CompilerOptions.HighCq).Map<UnixExceptionHandler>();
}
private static VectoredExceptionHandler GenerateWindowsSignalHandler(IntPtr signalStructPtr)
@ -315,7 +315,7 @@ namespace ARMeilleure.Signal
OperandType[] argTypes = new OperandType[] { OperandType.I64 };
return Compiler.Compile<VectoredExceptionHandler>(cfg, argTypes, OperandType.I32, CompilerOptions.HighCq);
return Compiler.Compile(cfg, argTypes, OperandType.I32, CompilerOptions.HighCq).Map<VectoredExceptionHandler>();
}
}
}

1
ARMeilleure/Translation/ArmEmitterContext.cs
View file

@ -1,3 +1,4 @@
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.Common;
using ARMeilleure.Decoders;
using ARMeilleure.Diagnostics;

23
ARMeilleure/Translation/Compiler.cs
View file

@ -2,35 +2,16 @@ using ARMeilleure.CodeGen;
using ARMeilleure.CodeGen.X86;
using ARMeilleure.Diagnostics;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation.Cache;
using ARMeilleure.Translation.PTC;
using System;
using System.Runtime.InteropServices;
namespace ARMeilleure.Translation
{
static class Compiler
{
public static T Compile<T>(
ControlFlowGraph cfg,
OperandType[] argTypes,
OperandType retType,
CompilerOptions options,
PtcInfo ptcInfo = null)
{
CompiledFunction func = Compile(cfg, argTypes, retType, options, ptcInfo);
IntPtr codePtr = JitCache.Map(func);
return Marshal.GetDelegateForFunctionPointer<T>(codePtr);
}
public static CompiledFunction Compile(
ControlFlowGraph cfg,
OperandType[] argTypes,
OperandType retType,
CompilerOptions options,
PtcInfo ptcInfo = null)
CompilerOptions options)
{
Logger.StartPass(PassName.Dominance);
@ -57,7 +38,7 @@ namespace ARMeilleure.Translation
CompilerContext cctx = new(cfg, argTypes, retType, options);
return CodeGenerator.Generate(cctx, ptcInfo);
return CodeGenerator.Generate(cctx);
}
}
}

1
ARMeilleure/Translation/CompilerOptions.cs
View file

@ -9,6 +9,7 @@ namespace ARMeilleure.Translation
SsaForm = 1 << 0,
Optimize = 1 << 1,
Lsra = 1 << 2,
Relocatable = 1 << 3,
MediumCq = SsaForm | Optimize,
HighCq = SsaForm | Optimize | Lsra

48
ARMeilleure/Translation/PTC/Ptc.cs
View file

@ -1,9 +1,9 @@
using ARMeilleure.CodeGen;
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.CodeGen.Unwinding;
using ARMeilleure.CodeGen.X86;
using ARMeilleure.Common;
using ARMeilleure.Memory;
using ARMeilleure.Translation.Cache;
using Ryujinx.Common;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
@ -727,15 +727,10 @@ namespace ARMeilleure.Translation.PTC
UnwindInfo unwindInfo,
bool highCq)
{
CompiledFunction cFunc = new CompiledFunction(code, unwindInfo);
var cFunc = new CompiledFunction(code, unwindInfo, RelocInfo.Empty);
var gFunc = cFunc.Map<GuestFunction>();
IntPtr codePtr = JitCache.Map(cFunc);
GuestFunction gFunc = Marshal.GetDelegateForFunctionPointer<GuestFunction>(codePtr);
TranslatedFunction tFunc = new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
return tFunc;
return new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
}
private static void UpdateInfo(InfoEntry infoEntry)
@ -889,10 +884,14 @@ namespace ARMeilleure.Translation.PTC
return XXHash128.ComputeHash(memory.GetSpan(address, checked((int)(guestSize))));
}
internal static void WriteInfoCodeRelocUnwindInfo(ulong address, ulong guestSize, Hash128 hash, bool highCq, PtcInfo ptcInfo)
internal static 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;
@ -900,18 +899,37 @@ namespace ARMeilleure.Translation.PTC
infoEntry.Hash = hash;
infoEntry.HighCq = highCq;
infoEntry.Stubbed = false;
infoEntry.CodeLength = ptcInfo.Code.Length;
infoEntry.RelocEntriesCount = ptcInfo.RelocEntriesCount;
infoEntry.CodeLength = code.Length;
infoEntry.RelocEntriesCount = relocInfo.Entries.Length;
SerializeStructure(_infosStream, infoEntry);
WriteCode(ptcInfo.Code.AsSpan());
WriteCode(code.AsSpan());
// WriteReloc.
ptcInfo.RelocStream.WriteTo(_relocsStream);
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.
ptcInfo.UnwindInfoStream.WriteTo(_unwindInfosStream);
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);
}
}

63
ARMeilleure/Translation/PTC/PtcInfo.cs
View file

@ -1,63 +0,0 @@
using ARMeilleure.CodeGen.Unwinding;
using System;
using System.IO;
namespace ARMeilleure.Translation.PTC
{
class PtcInfo : IDisposable
{
private readonly BinaryWriter _relocWriter;
private readonly BinaryWriter _unwindInfoWriter;
public byte[] Code { get; set; }
public MemoryStream RelocStream { get; }
public MemoryStream UnwindInfoStream { get; }
public int RelocEntriesCount { get; private set; }
public PtcInfo()
{
RelocStream = new MemoryStream();
UnwindInfoStream = new MemoryStream();
_relocWriter = new BinaryWriter(RelocStream, EncodingCache.UTF8NoBOM, true);
_unwindInfoWriter = new BinaryWriter(UnwindInfoStream, EncodingCache.UTF8NoBOM, true);
RelocEntriesCount = 0;
}
public void WriteRelocEntry(RelocEntry relocEntry)
{
_relocWriter.Write((int)relocEntry.Position);
_relocWriter.Write((byte)relocEntry.Symbol.Type);
_relocWriter.Write((ulong)relocEntry.Symbol.Value);
RelocEntriesCount++;
}
public void WriteUnwindInfo(UnwindInfo unwindInfo)
{
_unwindInfoWriter.Write((int)unwindInfo.PushEntries.Length);
foreach (UnwindPushEntry unwindPushEntry in unwindInfo.PushEntries)
{
_unwindInfoWriter.Write((int)unwindPushEntry.PseudoOp);
_unwindInfoWriter.Write((int)unwindPushEntry.PrologOffset);
_unwindInfoWriter.Write((int)unwindPushEntry.RegIndex);
_unwindInfoWriter.Write((int)unwindPushEntry.StackOffsetOrAllocSize);
}
_unwindInfoWriter.Write((int)unwindInfo.PrologSize);
}
public void Dispose()
{
_relocWriter.Dispose();
_unwindInfoWriter.Dispose();
RelocStream.Dispose();
UnwindInfoStream.Dispose();
}
}
}

21
ARMeilleure/Translation/PTC/RelocEntry.cs
View file

@ -1,21 +0,0 @@
namespace ARMeilleure.Translation.PTC
{
struct RelocEntry
{
public const int Stride = 13; // Bytes.
public int Position;
public Symbol Symbol;
public RelocEntry(int position, Symbol symbol)
{
Position = position;
Symbol = symbol;
}
public override string ToString()
{
return $"({nameof(Position)} = {Position}, {nameof(Symbol)} = {Symbol})";
}
}
}

27
ARMeilleure/Translation/Translator.cs
View file

@ -1,3 +1,4 @@
using ARMeilleure.CodeGen;
using ARMeilleure.Common;
using ARMeilleure.Decoders;
using ARMeilleure.Diagnostics;
@ -279,32 +280,30 @@ namespace ARMeilleure.Translation
Logger.EndPass(PassName.RegisterUsage);
OperandType[] argTypes = new OperandType[] { OperandType.I64 };
var retType = OperandType.I64;
var argTypes = new OperandType[] { OperandType.I64 };
CompilerOptions options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
var options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
GuestFunction func;
if (!context.HasPtc)
if (context.HasPtc)
{
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options);
options |= CompilerOptions.Relocatable;
}
else
CompiledFunction compiledFunc = Compiler.Compile(cfg, argTypes, retType, options);
if (context.HasPtc)
{
using PtcInfo ptcInfo = new PtcInfo();
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options, ptcInfo);
Hash128 hash = Ptc.ComputeHash(Memory, address, funcSize);
Ptc.WriteInfoCodeRelocUnwindInfo(address, funcSize, hash, highCq, ptcInfo);
Ptc.WriteCompiledFunction(address, funcSize, hash, highCq, compiledFunc);
}
var result = new TranslatedFunction(func, counter, funcSize, highCq);
GuestFunction func = compiledFunc.Map<GuestFunction>();
Allocators.ResetAll();
return result;
return new TranslatedFunction(func, counter, funcSize, highCq);
}
private struct Range

6
ARMeilleure/Translation/TranslatorStubs.cs
View file

@ -178,7 +178,7 @@ namespace ARMeilleure.Translation
var retType = OperandType.I64;
var argTypes = new[] { OperandType.I64 };
var func = Compiler.Compile<GuestFunction>(cfg, argTypes, retType, CompilerOptions.HighCq);
var func = Compiler.Compile(cfg, argTypes, retType, CompilerOptions.HighCq).Map<GuestFunction>();
return Marshal.GetFunctionPointerForDelegate(func);
}
@ -204,7 +204,7 @@ namespace ARMeilleure.Translation
var retType = OperandType.I64;
var argTypes = new[] { OperandType.I64 };
var func = Compiler.Compile<GuestFunction>(cfg, argTypes, retType, CompilerOptions.HighCq);
var func = Compiler.Compile(cfg, argTypes, retType, CompilerOptions.HighCq).Map<GuestFunction>();
return Marshal.GetFunctionPointerForDelegate(func);
}
@ -242,7 +242,7 @@ namespace ARMeilleure.Translation
var retType = OperandType.None;
var argTypes = new[] { OperandType.I64, OperandType.I64 };
return Compiler.Compile<DispatcherFunction>(cfg, argTypes, retType, CompilerOptions.HighCq);
return Compiler.Compile(cfg, argTypes, retType, CompilerOptions.HighCq).Map<DispatcherFunction>();
}
}
}