private void Disassemble(ITextOutput output, ReadyToRunReader reader, ReadyToRunMethod readyToRunMethod, RuntimeFunction runtimeFunction, int bitness, ulong address)
{
WriteCommentLine(output, readyToRunMethod.SignatureString);
byte[] codeBytes = new byte[runtimeFunction.Size];
for (int i = 0; i < runtimeFunction.Size; i++)
{
codeBytes[i] = reader.Image[reader.GetOffset(runtimeFunction.StartAddress) + i];
}
// TODO: Decorate the disassembly with Unwind, GC and debug info
var codeReader = new ByteArrayCodeReader(codeBytes);
var decoder = Decoder.Create(bitness, codeReader);
decoder.IP = address;
ulong endRip = decoder.IP + (uint)codeBytes.Length;
var instructions = new InstructionList();
while (decoder.IP < endRip)
{
decoder.Decode(out instructions.AllocUninitializedElement());
}
string disassemblyFormat = ReadyToRunOptions.GetDisassemblyFormat(null);
Formatter formatter = null;
if (disassemblyFormat.Equals(ReadyToRunOptions.intel))
{
formatter = new NasmFormatter();
}
else
{
Debug.Assert(disassemblyFormat.Equals(ReadyToRunOptions.gas));
formatter = new GasFormatter();
}
formatter.Options.DigitSeparator = "`";
formatter.Options.FirstOperandCharIndex = 10;
var tempOutput = new StringOutput();
foreach (var instr in instructions)
{
int byteBaseIndex = (int)(instr.IP - address);
foreach (var bound in runtimeFunction.DebugInfo.BoundsList)
{
if (bound.NativeOffset == byteBaseIndex)
{
if (bound.ILOffset == (uint)DebugInfoBoundsType.Prolog)
{
WriteCommentLine(output, "Prolog");
}
else if (bound.ILOffset == (uint)DebugInfoBoundsType.Epilog)
{
WriteCommentLine(output, "Epilog");
}
else
{
WriteCommentLine(output, $"IL_{bound.ILOffset:x4}");
}
}
}
formatter.Format(instr, tempOutput);
output.Write(instr.IP.ToString("X16"));
output.Write(" ");
int instrLen = instr.Length;
for (int i = 0; i < instrLen; i++)
{
output.Write(codeBytes[byteBaseIndex + i].ToString("X2"));
}
int missingBytes = 10 - instrLen;
for (int i = 0; i < missingBytes; i++)
{
output.Write(" ");
}
output.Write(" ");
output.WriteLine(tempOutput.ToStringAndReset());
}
output.WriteLine();
}
abstract internal void DumpMethod(ReadyToRunMethod method);
private void Disassemble(PEFile currentFile, ITextOutput output, ReadyToRunReader reader, ReadyToRunMethod readyToRunMethod, RuntimeFunction runtimeFunction, int bitness, ulong address, bool showMetadataTokens, bool showMetadataTokensInBase10)
{
// TODO: Decorate the disassembly with GCInfo
WriteCommentLine(output, readyToRunMethod.SignatureString);
Dictionary <ulong, UnwindCode> unwindInfo = null;
if (ReadyToRunOptions.GetIsShowUnwindInfo(null) && bitness == 64)
{
unwindInfo = WriteUnwindInfo(runtimeFunction, output);
}
bool isShowDebugInfo = ReadyToRunOptions.GetIsShowDebugInfo(null);
Dictionary <VarLocType, HashSet <ValueTuple <DebugInfo, NativeVarInfo> > > debugInfo = null;
if (isShowDebugInfo)
{
debugInfo = WriteDebugInfo(readyToRunMethod, output);
}
byte[] codeBytes = new byte[runtimeFunction.Size];
for (int i = 0; i < runtimeFunction.Size; i++)
{
codeBytes[i] = reader.Image[reader.GetOffset(runtimeFunction.StartAddress) + i];
}
var codeReader = new ByteArrayCodeReader(codeBytes);
var decoder = Decoder.Create(bitness, codeReader);
decoder.IP = address;
ulong endRip = decoder.IP + (uint)codeBytes.Length;
var instructions = new InstructionList();
while (decoder.IP < endRip)
{
decoder.Decode(out instructions.AllocUninitializedElement());
}
string disassemblyFormat = ReadyToRunOptions.GetDisassemblyFormat(null);
Formatter formatter = null;
if (disassemblyFormat.Equals(ReadyToRunOptions.intel))
{
formatter = new NasmFormatter();
}
else
{
Debug.Assert(disassemblyFormat.Equals(ReadyToRunOptions.gas));
formatter = new GasFormatter();
}
formatter.Options.DigitSeparator = "`";
formatter.Options.FirstOperandCharIndex = 10;
var tempOutput = new StringOutput();
ulong baseInstrIP = instructions[0].IP;
foreach (var instr in instructions)
{
int byteBaseIndex = (int)(instr.IP - address);
if (isShowDebugInfo && runtimeFunction.DebugInfo != null)
{
foreach (var bound in runtimeFunction.DebugInfo.BoundsList)
{
if (bound.NativeOffset == byteBaseIndex)
{
if (bound.ILOffset == (uint)DebugInfoBoundsType.Prolog)
{
WriteCommentLine(output, "Prolog");
}
else if (bound.ILOffset == (uint)DebugInfoBoundsType.Epilog)
{
WriteCommentLine(output, "Epilog");
}
else
{
WriteCommentLine(output, $"IL_{bound.ILOffset:x4}");
}
}
}
}
formatter.Format(instr, tempOutput);
output.Write(instr.IP.ToString("X16"));
output.Write(" ");
int instrLen = instr.Length;
for (int i = 0; i < instrLen; i++)
{
output.Write(codeBytes[byteBaseIndex + i].ToString("X2"));
}
int missingBytes = 10 - instrLen;
for (int i = 0; i < missingBytes; i++)
{
output.Write(" ");
}
output.Write(" ");
output.Write(tempOutput.ToStringAndReset());
DecorateUnwindInfo(output, unwindInfo, baseInstrIP, instr);
DecorateDebugInfo(output, instr, debugInfo, baseInstrIP);
DecorateCallSite(currentFile, output, reader, showMetadataTokens, showMetadataTokensInBase10, instr);
}
output.WriteLine();
}
private Dictionary <VarLocType, HashSet <(DebugInfo debugInfo, NativeVarInfo varLoc)> > WriteDebugInfo(ReadyToRunMethod readyToRunMethod, ITextOutput output)
{
Dictionary <VarLocType, HashSet <(DebugInfo debugInfo, NativeVarInfo varLoc)> > debugInfoDict = new Dictionary <VarLocType, HashSet <(DebugInfo debugInfo, NativeVarInfo varLoc)> >();
IReadOnlyList <RuntimeFunction> runTimeList = readyToRunMethod.RuntimeFunctions;
foreach (RuntimeFunction runtimeFunction in runTimeList)
{
DebugInfo debugInfo = runtimeFunction.DebugInfo;
if (debugInfo != null && debugInfo.BoundsList.Count > 0)
{
for (int i = 0; i < debugInfo.VariablesList.Count; ++i)
{
var varLoc = debugInfo.VariablesList[i];
try {
var typeSet = new HashSet <ValueTuple <DebugInfo, NativeVarInfo> >();
bool found = debugInfoDict.TryGetValue(varLoc.VariableLocation.VarLocType, out typeSet);
if (found)
{
(DebugInfo debugInfo, NativeVarInfo varLoc)newTuple = (debugInfo, varLoc);
typeSet.Add(newTuple);
}
else
{
typeSet = new HashSet <ValueTuple <DebugInfo, NativeVarInfo> >();
debugInfoDict.Add(varLoc.VariableLocation.VarLocType, typeSet);
(DebugInfo debugInfo, NativeVarInfo varLoc)newTuple = (debugInfo, varLoc);
typeSet.Add(newTuple);
}
} catch (ArgumentNullException) {
output.WriteLine("Failed to find hash set of Debug info type");
}
if (varLoc.VariableLocation.VarLocType != VarLocType.VLT_REG && varLoc.VariableLocation.VarLocType != VarLocType.VLT_STK &&
varLoc.VariableLocation.VarLocType != VarLocType.VLT_STK_BYREF)
{
output.WriteLine($" Variable Number: {varLoc.VariableNumber}");
output.WriteLine($" Start Offset: 0x{varLoc.StartOffset:X}");
output.WriteLine($" End Offset: 0x{varLoc.EndOffset:X}");
output.WriteLine($" Loc Type: {varLoc.VariableLocation.VarLocType}");
switch (varLoc.VariableLocation.VarLocType)
{
case VarLocType.VLT_REG:
case VarLocType.VLT_REG_FP:
case VarLocType.VLT_REG_BYREF:
output.WriteLine($" Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
break;
case VarLocType.VLT_STK:
case VarLocType.VLT_STK_BYREF:
output.WriteLine($" Base Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
output.WriteLine($" Stack Offset: {varLoc.VariableLocation.Data2}");
break;
case VarLocType.VLT_REG_REG:
output.WriteLine($" Register 1: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
output.WriteLine($" Register 2: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data2)}");
break;
case VarLocType.VLT_REG_STK:
output.WriteLine($" Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
output.WriteLine($" Base Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data2)}");
output.WriteLine($" Stack Offset: {varLoc.VariableLocation.Data3}");
break;
case VarLocType.VLT_STK_REG:
output.WriteLine($" Stack Offset: {varLoc.VariableLocation.Data1}");
output.WriteLine($" Base Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data2)}");
output.WriteLine($" Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data3)}");
break;
case VarLocType.VLT_STK2:
output.WriteLine($" Base Register: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
output.WriteLine($" Stack Offset: {varLoc.VariableLocation.Data2}");
break;
case VarLocType.VLT_FPSTK:
output.WriteLine($" Offset: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
break;
case VarLocType.VLT_FIXED_VA:
output.WriteLine($" Offset: {DebugInfo.GetPlatformSpecificRegister(debugInfo.Machine, varLoc.VariableLocation.Data1)}");
break;
default:
output.WriteLine("WRN: Unexpected variable location type");
break;
}
output.WriteLine("");
}
}
}
}
return(debugInfoDict);
}
public MethodPair(ReadyToRunMethod leftMethod, ReadyToRunMethod rightMethod)
{
LeftMethod = leftMethod;
RightMethod = rightMethod;
}
private void Disassemble(PEFile currentFile, ITextOutput output, ReadyToRunReader reader, ReadyToRunMethod readyToRunMethod, RuntimeFunction runtimeFunction, int bitness, ulong address, bool showMetadataTokens, bool showMetadataTokensInBase10)
{
WriteCommentLine(output, readyToRunMethod.SignatureString);
byte[] codeBytes = new byte[runtimeFunction.Size];
for (int i = 0; i < runtimeFunction.Size; i++)
{
codeBytes[i] = reader.Image[reader.GetOffset(runtimeFunction.StartAddress) + i];
}
// TODO: Decorate the disassembly with Unwind, GC and debug info
var codeReader = new ByteArrayCodeReader(codeBytes);
var decoder = Decoder.Create(bitness, codeReader);
decoder.IP = address;
ulong endRip = decoder.IP + (uint)codeBytes.Length;
var instructions = new InstructionList();
while (decoder.IP < endRip)
{
decoder.Decode(out instructions.AllocUninitializedElement());
}
string disassemblyFormat = ReadyToRunOptions.GetDisassemblyFormat(null);
Formatter formatter = null;
if (disassemblyFormat.Equals(ReadyToRunOptions.intel))
{
formatter = new NasmFormatter();
}
else
{
Debug.Assert(disassemblyFormat.Equals(ReadyToRunOptions.gas));
formatter = new GasFormatter();
}
formatter.Options.DigitSeparator = "`";
formatter.Options.FirstOperandCharIndex = 10;
var tempOutput = new StringOutput();
foreach (var instr in instructions)
{
int byteBaseIndex = (int)(instr.IP - address);
if (runtimeFunction.DebugInfo != null)
{
foreach (var bound in runtimeFunction.DebugInfo.BoundsList)
{
if (bound.NativeOffset == byteBaseIndex)
{
if (bound.ILOffset == (uint)DebugInfoBoundsType.Prolog)
{
WriteCommentLine(output, "Prolog");
}
else if (bound.ILOffset == (uint)DebugInfoBoundsType.Epilog)
{
WriteCommentLine(output, "Epilog");
}
else
{
WriteCommentLine(output, $"IL_{bound.ILOffset:x4}");
}
}
}
}
formatter.Format(instr, tempOutput);
output.Write(instr.IP.ToString("X16"));
output.Write(" ");
int instrLen = instr.Length;
for (int i = 0; i < instrLen; i++)
{
output.Write(codeBytes[byteBaseIndex + i].ToString("X2"));
}
int missingBytes = 10 - instrLen;
for (int i = 0; i < missingBytes; i++)
{
output.Write(" ");
}
output.Write(" ");
output.Write(tempOutput.ToStringAndReset());
int importCellAddress = (int)instr.IPRelativeMemoryAddress;
if (instr.IsCallNearIndirect && reader.ImportCellNames.ContainsKey(importCellAddress))
{
output.Write(" ; ");
ReadyToRunSignature signature = reader.ImportSignatures[(int)instr.IPRelativeMemoryAddress];
switch (signature)
{
case MethodDefEntrySignature methodDefSignature:
var methodDefToken = MetadataTokens.EntityHandle(unchecked ((int)methodDefSignature.MethodDefToken));
if (showMetadataTokens)
{
if (showMetadataTokensInBase10)
{
output.WriteReference(currentFile, methodDefToken, $"({MetadataTokens.GetToken(methodDefToken)}) ", "metadata");
}
else
{
output.WriteReference(currentFile, methodDefToken, $"({MetadataTokens.GetToken(methodDefToken):X8}) ", "metadata");
}
}
methodDefToken.WriteTo(currentFile, output, Decompiler.Metadata.GenericContext.Empty);
break;
case MethodRefEntrySignature methodRefSignature:
var methodRefToken = MetadataTokens.EntityHandle(unchecked ((int)methodRefSignature.MethodRefToken));
if (showMetadataTokens)
{
if (showMetadataTokensInBase10)
{
output.WriteReference(currentFile, methodRefToken, $"({MetadataTokens.GetToken(methodRefToken)}) ", "metadata");
}
else
{
output.WriteReference(currentFile, methodRefToken, $"({MetadataTokens.GetToken(methodRefToken):X8}) ", "metadata");
}
}
methodRefToken.WriteTo(currentFile, output, Decompiler.Metadata.GenericContext.Empty);
break;
default:
output.WriteLine(reader.ImportCellNames[importCellAddress]);
break;
}
output.WriteLine();
}
else
{
output.WriteLine();
}
}
output.WriteLine();
}
