public RegisterService(DataTarget target)
{
_target = target;
Type contextType;
switch (target.Architecture)
{
case Architecture.Amd64:
_contextSize = AMD64Context.Size;
_contextFlags = AMD64Context.ContextControl | AMD64Context.ContextInteger | AMD64Context.ContextSegments;
contextType = typeof(AMD64Context);
break;
case Architecture.X86:
_contextSize = X86Context.Size;
_contextFlags = X86Context.ContextControl | X86Context.ContextInteger | X86Context.ContextSegments;
contextType = typeof(X86Context);
break;
case Architecture.Arm64:
_contextSize = Arm64Context.Size;
_contextFlags = Arm64Context.ContextControl | Arm64Context.ContextInteger;
contextType = typeof(Arm64Context);
break;
case Architecture.Arm:
_contextSize = ArmContext.Size;
_contextFlags = ArmContext.ContextControl | ArmContext.ContextInteger;
contextType = typeof(ArmContext);
break;
default:
throw new PlatformNotSupportedException($"Unsupported architecture: {target.Architecture}");
}
var registers = new List <RegisterInfo>();
int index = 0;
FieldInfo[] fields = contextType.GetFields(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic);
foreach (FieldInfo field in fields)
{
RegisterAttribute registerAttribute = field.GetCustomAttributes <RegisterAttribute>(inherit: false).SingleOrDefault();
if (registerAttribute == null)
{
continue;
}
RegisterType registerType = registerAttribute.RegisterType & RegisterType.TypeMask;
switch (registerType)
{
case RegisterType.Control:
case RegisterType.General:
case RegisterType.Segments:
break;
default:
continue;
}
if ((registerAttribute.RegisterType & RegisterType.ProgramCounter) != 0)
{
InstructionPointerIndex = index;
}
if ((registerAttribute.RegisterType & RegisterType.StackPointer) != 0)
{
StackPointerIndex = index;
}
if ((registerAttribute.RegisterType & RegisterType.FramePointer) != 0)
{
FramePointerIndex = index;
}
FieldOffsetAttribute offsetAttribute = field.GetCustomAttributes <FieldOffsetAttribute>(inherit: false).Single();
var registerInfo = new RegisterInfo(index, offsetAttribute.Value, Marshal.SizeOf(field.FieldType), registerAttribute.Name ?? field.Name.ToLower());
registers.Add(registerInfo);
index++;
}
_lookupByName = registers.ToDictionary((info) => info.RegisterName);
_lookupByIndex = registers.ToDictionary((info) => info.RegisterIndex);
Registers = registers;
}
public ThreadService(IDataReader dataReader)
{
_dataReader = dataReader;
_threadReader = (IThreadReader)dataReader;
Type contextType;
switch (dataReader.Architecture)
{
case Architecture.Amd64:
// Dumps generated with newer dbgeng have bigger context buffers and clrmd requires the context size to at least be that size.
_contextSize = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? 0x700 : AMD64Context.Size;
_contextFlags = AMD64Context.ContextControl | AMD64Context.ContextInteger | AMD64Context.ContextSegments;
contextType = typeof(AMD64Context);
break;
case Architecture.X86:
_contextSize = X86Context.Size;
_contextFlags = X86Context.ContextControl | X86Context.ContextInteger | X86Context.ContextSegments;
contextType = typeof(X86Context);
break;
case Architecture.Arm64:
_contextSize = Arm64Context.Size;
_contextFlags = Arm64Context.ContextControl | Arm64Context.ContextInteger;
contextType = typeof(Arm64Context);
break;
case Architecture.Arm:
_contextSize = ArmContext.Size;
_contextFlags = ArmContext.ContextControl | ArmContext.ContextInteger;
contextType = typeof(ArmContext);
break;
default:
throw new PlatformNotSupportedException($"Unsupported architecture: {dataReader.Architecture}");
}
var registers = new List <RegisterInfo>();
int index = 0;
FieldInfo[] fields = contextType.GetFields(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic);
foreach (FieldInfo field in fields)
{
RegisterAttribute registerAttribute = field.GetCustomAttributes <RegisterAttribute>(inherit: false).SingleOrDefault();
if (registerAttribute == null)
{
continue;
}
RegisterType registerType = registerAttribute.RegisterType & RegisterType.TypeMask;
switch (registerType)
{
case RegisterType.Control:
case RegisterType.General:
case RegisterType.Segments:
break;
default:
continue;
}
if ((registerAttribute.RegisterType & RegisterType.ProgramCounter) != 0)
{
_instructionPointerIndex = index;
}
if ((registerAttribute.RegisterType & RegisterType.StackPointer) != 0)
{
_stackPointerIndex = index;
}
if ((registerAttribute.RegisterType & RegisterType.FramePointer) != 0)
{
_framePointerIndex = index;
}
FieldOffsetAttribute offsetAttribute = field.GetCustomAttributes <FieldOffsetAttribute>(inherit: false).Single();
var registerInfo = new RegisterInfo(index, offsetAttribute.Value, Marshal.SizeOf(field.FieldType), registerAttribute.Name ?? field.Name.ToLower());
registers.Add(registerInfo);
index++;
}
_lookupByName = registers.ToDictionary((info) => info.RegisterName);
_lookupByIndex = registers.ToDictionary((info) => info.RegisterIndex);
_registers = registers;
}
/// <summary>
/// Returns the register info (name, offset, size, etc).
/// </summary>
/// <param name="index">register index</param>
/// <param name="info">RegisterInfo</param>
/// <returns>true if index found</returns>
public bool GetRegisterInfo(int index, out RegisterInfo info)
{
return(_lookupByIndex.TryGetValue(index, out info));
}
/// <summary>
/// Returns the register info (name, offset, size, etc).
/// </summary>
/// <param name="index">register index</param>
/// <param name="info">RegisterInfo</param>
/// <returns>true if index found</returns>
bool IThreadService.GetRegisterInfo(int index, out RegisterInfo info)
{
return(_lookupByIndex.TryGetValue(index, out info));
}
