/// <summary>
/// Print out information about whether or not a devirtualization attempt was
/// successful, and if not why not.
/// </summary>
/// <param name="options">MonoOptions set from passed command-line arguments</param>
/// <param name="module">EazModule</param>
/// <param name="attempt">Data about the devirtualization attempt</param>
static void PrintAttemptSuccess(MonoOptions options, EazModule module,
DevirtualizeAttempt attempt)
{
var reader = attempt.Reader;
if (attempt.Successful)
Console.WriteLine("--> Devirtualizable");
else if (attempt.WasInstructionUnknown)
{
var matches = module.VirtualInstructions
.Where((instr) => { return instr.VirtualCode == reader.LastVirtualOpCode; })
.ToArray();
if (matches.Length > 0)
{
VirtualOpCode v = matches[0];
Console.WriteLine("--> Not yet devirtualizable (contains unknown virtual instruction)");
Console.WriteLine("-----> Virtual OpCode = {0} @ [{1}] (0x{2:X8})",
reader.LastVirtualOpCode, reader.CurrentInstructionOffset, reader.CurrentVirtualOffset);
Console.WriteLine("-----> Delegate method: {0} (MDToken = 0x{1:X8})",
v.DelegateMethod.FullName, v.DelegateMethod.MDToken.Raw);
}
else
{
Console.WriteLine("--> Not yet devirtualizable (contains unexpected virtual instruction @ [{0}] (0x{1:X8}))",
reader.CurrentInstructionOffset, reader.CurrentVirtualOffset);
}
}
else
Console.WriteLine("--> Not yet devirtualizable (threw exception)");
}
/// <summary>
/// Print out information about whether or not a devirtualization attempt was
/// successful, and if not why not.
/// </summary>
/// <param name="options">MonoOptions set from passed command-line arguments</param>
/// <param name="module">EazModule</param>
/// <param name="attempt">Data about the devirtualization attempt</param>
static void PrintAttemptSuccess(MonoOptions options, EazModule module,
DevirtualizeAttempt attempt)
{
var reader = attempt.Reader;
if (attempt.Successful)
{
Console.WriteLine("--> Devirtualizable");
}
else if (attempt.WasInstructionUnknown)
{
var matches = module.VirtualInstructions
.Where((instr) => { return(instr.VirtualCode == reader.LastVirtualOpCode); })
.ToArray();
if (matches.Length > 0)
{
VirtualOpCode v = matches[0];
Console.WriteLine("--> Not yet devirtualizable (contains unknown virtual instruction)");
Console.WriteLine("-----> Virtual OpCode = {0} @ [{1}] (0x{2:X8})",
reader.LastVirtualOpCode, reader.CurrentInstructionOffset, reader.CurrentVirtualOffset);
Console.WriteLine("-----> Delegate method: {0} (MDToken = 0x{1:X8})",
v.DelegateMethod.FullName, v.DelegateMethod.MDToken.Raw);
}
else
{
Console.WriteLine("--> Not yet devirtualizable (contains unexpected virtual instruction @ [{0}] (0x{1:X8}))",
reader.CurrentInstructionOffset, reader.CurrentVirtualOffset);
}
}
else
{
Console.WriteLine("--> Not yet devirtualizable (threw exception)");
}
}
/// <summary>
/// Print out information about a devirtualization attempt.
/// </summary>
/// <param name="options">MonoOptions set from passed command-line arguments</param>
/// <param name="module">EazModule</param>
/// <param name="attempt">Data about the devirtualization attempt</param>
static void PrintAttempt(MonoOptions options, EazModule module,
DevirtualizeAttempt attempt)
{
var reader = attempt.Reader;
var method = attempt.Method;
var stub = attempt.VirtualizedMethod;
var body = attempt.MethodBody;
IList<Local> locals = attempt.Successful ?
body.Variables : reader.Locals;
IList<ExceptionHandler> handlers = attempt.Successful ?
body.ExceptionHandlers : reader.ExceptionHandlers;
IList<Instruction> instructions = attempt.Successful ?
body.Instructions : reader.Instructions;
// Message prefix
String prefix;
switch(options.Action)
{
case ProgramAction.Devirtualize:
prefix = "Devirtualized";
break;
case ProgramAction.Methods:
default:
prefix = "Found";
break;
}
Console.WriteLine("{0} {1} (MDToken = 0x{2:X8})", prefix, method.FullName, method.MDToken.Raw);
if (options.Action == ProgramAction.Methods || options.Verbose)
{
Console.WriteLine("--> Position string: {0}", stub.PositionString);
Console.WriteLine("--> Position: {0} (0x{0:X8})", stub.Position);
Console.WriteLine("--> Resource: {0}", stub.ResourceStringId);
Console.WriteLine("--> Crypto key: {0}", stub.ResourceCryptoKey);
Console.WriteLine("--> Actual method size: {0} (0x{0:X8})", reader.CodeSize);
if (options.Action == ProgramAction.Methods)
PrintAttemptSuccess(options, module, attempt);
}
if (options.Action == ProgramAction.Methods || options.Verbose)
{
Console.WriteLine();
// Print locals
if (locals.Count > 0)
{
Int32 index = 0;
Console.WriteLine("Locals:");
Console.WriteLine("-------");
foreach (var local in locals)
Console.WriteLine("local[{0}]: {1}", index++, local.Type.FullName);
Console.WriteLine();
}
// Print exception handlers
if (handlers.Count > 0)
{
Int32 index = 0;
Console.WriteLine("Exception Handlers:");
Console.WriteLine("-------------------");
foreach (var handler in handlers)
{
if (handler.CatchType != null)
Console.WriteLine("handler[{0}]: HandlerType = {1}, CatchType = {2}",
index++, handler.HandlerType, handler.CatchType);
else
Console.WriteLine("handler[{0}]: HandlerType = {1}",
index++, handler.HandlerType);
Console.WriteLine("--> Try: [{0}, {1}]", handler.TryStart, handler.TryEnd);
Console.WriteLine("--> Handler: [{0}, {1}]", handler.HandlerStart, handler.HandlerEnd);
Console.WriteLine("--> Filter: {0}", handler.FilterStart);
}
Console.WriteLine();
}
// Print instructions
if (instructions != null && instructions.Count > 0)
{
Console.WriteLine("Instructions:");
Console.WriteLine("-------------");
foreach (var instr in instructions)
Console.WriteLine(instr);
Console.WriteLine();
}
// Print out exception, if any
if (!attempt.Successful && !attempt.WasInstructionUnknown)
{
Console.Write(attempt.Exception);
Console.WriteLine();
Console.WriteLine();
}
}
if (!(options.Action == ProgramAction.Devirtualize && !options.Verbose))
Console.WriteLine();
}
public DevirtualizeResults Devirtualize(DevirtualizeOptions options, Action<DevirtualizeAttempt> attemptCallback)
{
var methods = this.Parent.FindMethodStubs();
if (methods.Length == 0)
return new DevirtualizeResults();
var attempts = new List<DevirtualizeAttempt>();
foreach (var method in methods)
{
var reader = new VirtualizedMethodBodyReader(method, this.Logger, this.Parent.Version);
Exception exception = null, fixerException = null;
try
{
reader.Read(); // Read method
}
catch (Exception e)
{
exception = e;
}
DevirtualizeAttempt attempt;
if (exception == null)
{
var body = new CilBody(
true,
reader.Instructions,
reader.ExceptionHandlers,
reader.Locals
);
method.Method.FreeMethodBody();
method.Method.Body = body;
// Perform fixes
try
{
PerformFixes(method.Method);
}
catch (Exception e)
{
fixerException = e;
}
if (fixerException == null)
{
// Inject DevirtualizedAttribute if specified
if (options.HasFlag(DevirtualizeOptions.InjectAttributes))
this.Injector.InjectDevirtualized(method.Method);
attempt = new DevirtualizeAttempt(method, reader, body);
}
else
attempt = new DevirtualizeAttempt(method, reader, fixerException);
}
else
attempt = new DevirtualizeAttempt(method, reader, exception);
// Add attempt to list and fire callback
attempts.Add(attempt);
if (attemptCallback != null)
attemptCallback(attempt);
}
return new DevirtualizeResults(attempts);
}
public DevirtualizeResults Devirtualize(DevirtualizeOptions options, Action <DevirtualizeAttempt> attemptCallback)
{
var methods = this.Parent.FindMethodStubs();
if (methods.Length == 0)
{
return(new DevirtualizeResults());
}
var attempts = new List <DevirtualizeAttempt>();
foreach (var method in methods)
{
var reader = new VirtualizedMethodBodyReader(method, this.Logger);
Exception exception = null, fixerException = null;
try
{
reader.Read(); // Read method
}
catch (Exception e)
{
exception = e;
}
DevirtualizeAttempt attempt;
if (exception == null)
{
var body = new CilBody(
true,
reader.Instructions,
reader.ExceptionHandlers,
reader.Locals
);
method.Method.FreeMethodBody();
method.Method.Body = body;
// Perform fixes
try
{
PerformFixes(method.Method);
}
catch (Exception e)
{
fixerException = e;
}
if (fixerException == null)
{
// Inject DevirtualizedAttribute if specified
if (options.HasFlag(DevirtualizeOptions.InjectAttributes))
{
this.Injector.InjectDevirtualized(method.Method);
}
attempt = new DevirtualizeAttempt(method, reader, body);
}
else
{
attempt = new DevirtualizeAttempt(method, reader, fixerException);
}
}
else
{
attempt = new DevirtualizeAttempt(method, reader, exception);
}
// Add attempt to list and fire callback
attempts.Add(attempt);
if (attemptCallback != null)
{
attemptCallback(attempt);
}
}
return(new DevirtualizeResults(attempts));
}
/// <summary>
/// Print out information about a devirtualization attempt.
/// </summary>
/// <param name="options">MonoOptions set from passed command-line arguments</param>
/// <param name="module">EazModule</param>
/// <param name="attempt">Data about the devirtualization attempt</param>
static void PrintAttempt(MonoOptions options, EazModule module,
DevirtualizeAttempt attempt)
{
var reader = attempt.Reader;
var method = attempt.Method;
var stub = attempt.VirtualizedMethod;
var body = attempt.MethodBody;
IList <Local> locals = attempt.Successful ?
body.Variables : reader.Locals;
IList <ExceptionHandler> handlers = attempt.Successful ?
body.ExceptionHandlers : reader.ExceptionHandlers;
IList <Instruction> instructions = attempt.Successful ?
body.Instructions : reader.Instructions;
// Message prefix
String prefix;
switch (options.Action)
{
case ProgramAction.Devirtualize:
prefix = "Devirtualized";
break;
case ProgramAction.Methods:
default:
prefix = "Found";
break;
}
Console.WriteLine("{0} {1} (MDToken = 0x{2:X8})", prefix, method.FullName, method.MDToken.Raw);
if (options.Action == ProgramAction.Methods || options.Verbose)
{
Console.WriteLine("--> Position string: {0}", stub.PositionString);
Console.WriteLine("--> Position: {0} (0x{0:X8})", stub.Position);
Console.WriteLine("--> Resource: {0}", stub.ResourceStringId);
Console.WriteLine("--> Crypto key: {0}", stub.ResourceCryptoKey);
Console.WriteLine("--> Actual method size: {0} (0x{0:X8})", reader.CodeSize);
if (options.Action == ProgramAction.Methods)
{
PrintAttemptSuccess(options, module, attempt);
}
}
if (options.Action == ProgramAction.Methods || options.Verbose)
{
Console.WriteLine();
// Print locals
if (locals.Count > 0)
{
Int32 index = 0;
Console.WriteLine("Locals:");
Console.WriteLine("-------");
foreach (var local in locals)
{
Console.WriteLine("local[{0}]: {1}", index++, local.Type.FullName);
}
Console.WriteLine();
}
// Print exception handlers
if (handlers.Count > 0)
{
Int32 index = 0;
Console.WriteLine("Exception Handlers:");
Console.WriteLine("-------------------");
foreach (var handler in handlers)
{
if (handler.CatchType != null)
{
Console.WriteLine("handler[{0}]: HandlerType = {1}, CatchType = {2}",
index++, handler.HandlerType, handler.CatchType);
}
else
{
Console.WriteLine("handler[{0}]: HandlerType = {1}",
index++, handler.HandlerType);
}
Console.WriteLine("--> Try: [{0}, {1}]", handler.TryStart, handler.TryEnd);
Console.WriteLine("--> Handler: [{0}, {1}]", handler.HandlerStart, handler.HandlerEnd);
Console.WriteLine("--> Filter: {0}", handler.FilterStart);
}
Console.WriteLine();
}
// Print instructions
if (instructions != null && instructions.Count > 0)
{
Console.WriteLine("Instructions:");
Console.WriteLine("-------------");
foreach (var instr in instructions)
{
Console.WriteLine(instr);
}
Console.WriteLine();
}
// Print out exception, if any
if (!attempt.Successful && !attempt.WasInstructionUnknown)
{
Console.Write(attempt.Exception);
Console.WriteLine();
Console.WriteLine();
}
}
if (!(options.Action == ProgramAction.Devirtualize && !options.Verbose))
{
Console.WriteLine();
}
}