.NET 스레드 콜 스택 덤프 (7) - ClrMD(Microsoft.Diagnostics.Runtime)를 이용한 방법

스레드 콜 스택 덤프 관련해 결국 한 번 더 쓰게 되는군요. ^^

외부 프로세스에서 디버거를 붙이는 MDbg 방법보다 더 나은 CLRMD가 있어서 소개해드립니다. ^^

github - Microsoft / clrmd
; https://github.com/Microsoft/clrmd

// Install-Package Microsoft.Diagnostics.Runtime -Version 1.1.142101

using (DataTarget target = DataTarget.AttachToProcess(Process.GetCurrentProcess().Id, 5000, AttachFlag.Passive))
{
    ClrRuntime runtime = target.ClrVersions.First().CreateRuntime();
    foreach (ClrThread thread in runtime.Threads)
    {
        if (_managed.Contains(thread.ManagedThreadId) != true)
        {
            continue;
        }

        IList<ClrStackFrame> stackFrames = thread.StackTrace;

        foreach (ClrStackFrame item in stackFrames)
        {
            if (item.Kind == ClrStackFrameType.ManagedMethod)
            {
                FileAndLineNumber info = item.GetSourceLocation();
                if (info.Line != 0)
                {
                    Console.WriteLine("0x{0:x} 0x{1:x} {2} in {3} at {4}", item.InstructionPointer, item.StackPointer, item.DisplayString, info.File, info.Line);
                }
                else
                {
                    Console.WriteLine("0x{0:x} 0x{1:x} {2}", item.InstructionPointer, item.StackPointer, item.DisplayString);
                }
            }
        }
    }

    runtime.Flush();
}

commit fc6b4eac7c37ff2d900bedcb3a0fdeedd26b6fe9 - x64에서 "UNKNOWN" 콜스택이 나오는 문제
commit 2535724f0aa95f70763592d35a8efba009fb9310 - PDB 파일 분석 시 "Unknown custom metadata item kind: 6" 예외 발생하는 문제
commit e699965a623635e3d246c03b1cfc6ec5bf9aac3f - private PDB 파일인 경우 PdbException 발생하는 문제
commit 3e6120d7f4505a4957550e4eace459353870fcf0 - PdbInfo 타입에 GetHashCode / Equals 메서드 구현
commit 1de3a2d1fd8ed3cf6dbada0b370213db8c0f60d2 - PEBuffer 클래스에 있는 메모리 누수 문제
commit 7eb4235a71929bbd7edcfc493465e96c253619da - PEFile.GetPdbSignature 메서드에 있는 메모리 누수 문제
commit d8dfb06ec6c11e90b14d6a9a13eb3168ad6e50fd - x64에서 문제가 발생하는 Clrobject
commit c0940f9001e319c4ef22edff40a20eb2bfeb7806 - C# 2.0 컴파일러에서도 빌드가 가능하도록 C# 상위 버전의 문법 대체
commit 8aeae6e86292c838b2fc93b752b092b86479ade6 - C# 2.0 컴파일러에서도 빌드가 가능하도록 LINQ 의존성 제거

The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application. 

Unhandled Exception: System.InvalidOperationException: Sequence contains no elements
   at System.Linq.ThrowHelper.ThrowNoElementsException() + 0x2b
   at System.Linq.Enumerable.First[TSource](IEnumerable`1) + 0x27
   at System.Linq.ImmutableArrayExtensions.First[T](ImmutableArray`1) + 0x19
...[생략]...

Unhandled Exception: System.EntryPointNotFoundException: Unable to find an entry point named 'PssCaptureSnapshot' in native library 'kernel32.dll'.
   at Internal.Runtime.CompilerHelpers.InteropHelpers.FixupMethodCell(IntPtr, InteropHelpers.MethodFixupCell*) + 0x161
   at Internal.Runtime.CompilerHelpers.InteropHelpers.ResolvePInvokeSlow(InteropHelpers.MethodFixupCell*) + 0x3d
   at Microsoft.Diagnostics.Runtime.WindowsProcessDataReader.PssCaptureSnapshot(IntPtr, PSS_CAPTURE_FLAGS, Int32, IntPtr&) + 0x35
   at Microsoft.Diagnostics.Runtime.WindowsProcessDataReader..ctor(Int32, WindowsProcessDataReaderMode) + 0x85
   at Microsoft.Diagnostics.Runtime.DataTarget.CreateSnapshotAndAttach(Int32, TokenCredential) + 0x11a