/// <summary>
/// Gets the disassembly lines.
/// </summary>
/// <param name="threadId">The thread identifier.</param>
/// <param name="numInstructions">The number instructions.</param>
/// <returns>IEnumerable<DisassemblyLine></returns>
/// <exception cref="ArgumentOutOfRangeException">Number of instructions must be > 0</exception>
public IEnumerable <DisassemblyLine> GetDisassemblyLines(int threadId, int numInstructions)
{
if (numInstructions <= 0)
{
throw new ArgumentOutOfRangeException(nameof(numInstructions), "Number of instructions must be > 0");
}
var ipRegister = DebugEngineProxy.Is32Bit ? "eip" : "rip";
var instructionText = DebugEngineProxy.Execute(threadId, $"u {ipRegister} L{numInstructions:X}");
var matches = Regex.Matches(instructionText,
@"(?<ip>[a-fA-F0-9`]+)\s+(?<opcode>[a-fA-F0-9]+)\s+(?<ins>\w+)\s+(?<extra>.+)?");
var list = new List <DisassemblyLine>();
foreach (var match in matches.Cast <Match>())
{
var ip = match.Groups["ip"].Success
? Convert.ToUInt64(match.Groups["ip"].Value.Replace("`", ""), 16)
: 0;
byte[] opcode = null;
if (match.Groups["opcode"].Success)
{
opcode = ByteArrayBuilder.StringToByteArray(match.Groups["opcode"].Value);
}
var instruction = match.Groups["ins"].Success ? match.Groups["ins"].Value : "";
var note = match.Groups["extra"].Success ? match.Groups["extra"].Value : "";
var newLine = new DisassemblyLine(ip, opcode, instruction, note);
list.Add(newLine);
}
return(list);
}
public void Get_The_Current_Frame_Correctly()
{
// arrange
var engBuilder = new DebugEngineProxyBuilder();
engBuilder.WithExecuteResult("!positions", @">Thread ID=0x7590 - Position: 168CC:0
Thread ID=0x12A0 - Position: 211F5:0
Thread ID=0x6CDC - Position: 21D59:0
Thread ID=0x2984 - Position: 21DFE:0
Thread ID=0x3484 - Position: 21ECA:0
Thread ID=0x60B4 - Position: 2414F:0
Thread ID=0x1F54 - Position: 241DE:0
");
engBuilder.With32Bit(false);
engBuilder.WithThreadId(0x7590);
var stackBuilder = new StackFacadeBuilder();
var stackTrace = new StackTrace(new List <StackFrame>());
stackBuilder.WithGetCurrentStackTrace(stackTrace);
var registerSet = new RegisterSet();
var registerBuilder = new RegisterFacadeBuilder();
registerBuilder.WithGetCurrentRegisterSet(Register.All, registerSet);
var disassemblyLine = new DisassemblyLine(0x00007ffa51315595, ByteArrayBuilder.StringToByteArray("4d3bd1"),
"cmp", "r10,r9");
var disBuilder = new DisassemblyFacadeBuilder();
disBuilder.WithGetDisassemblyLines(1, new[] { disassemblyLine });
var facade = new TimeTravelFacade
{
DebugEngineProxy = engBuilder.Build(),
StackFacade = stackBuilder.Build(),
RegisterFacade = registerBuilder.Build(),
DisassemblyFacade = disBuilder.Build()
};
// act
var frame = facade.GetCurrentFrame();
// assert
frame.Position.Should().Be(new Position(0x168CC, 0));
frame.DisassemblyLine.Should().Be(disassemblyLine);
frame.RegisterSet.Should().Be(registerSet);
frame.StackTrace.Should().Be(stackTrace);
frame.ThreadId.Should().Be(0x7590);
}
public void Exhibit_Value_Equality()
{
var line0 = new DisassemblyLine(0, new byte[0], "mov", "");
var line1 = new DisassemblyLine(0, new byte[0], "mov", "");
var line2 = new DisassemblyLine(0, new byte[0], "pop", "");
var line3 = new DisassemblyLine(0, new byte[0], "push", "");
var line4 = new DisassemblyLine(0, new byte[] { 0x10, 0x20 }, "mov", "");
var line5 = new DisassemblyLine(0, new byte[] { 0x10, 0x20 }, "mov", "");
line0.Equals(null).Should().BeFalse();
line0.Equals(new object()).Should().BeFalse();
line0.Equals(line0).Should().BeTrue();
line0.Equals(line1).Should().BeTrue();
line1.Equals(line2).Should().BeFalse();
line2.Equals(line3).Should().BeFalse();
line0.GetHashCode().Should().Be(line1.GetHashCode());
line0.GetHashCode().Should().NotBe(line2.GetHashCode());
line4.GetHashCode().Should().Be(line5.GetHashCode());
}
