/// <summary>
/// Initialize the stack trace based on current thread and given initial frame index.
/// </summary>
private void InitializeForThreadFrameIndex(int skipFrames, bool needFileInfo)
{
int frameCount = -RuntimeImports.RhGetCurrentThreadStackTrace(Array.Empty <IntPtr>());
Debug.Assert(frameCount >= 0);
IntPtr[] stackTrace = new IntPtr[frameCount];
int trueFrameCount = RuntimeImports.RhGetCurrentThreadStackTrace(stackTrace);
Debug.Assert(trueFrameCount == frameCount);
InitializeForIpAddressArray(stackTrace, skipFrames, frameCount, needFileInfo);
}
private void BuildStackFrame(int frameIndex, bool needFileInfo)
{
const int SystemDiagnosticsStackDepth = 2;
frameIndex += SystemDiagnosticsStackDepth;
IntPtr[] frameArray = new IntPtr[frameIndex + 1];
int returnedFrameCount = RuntimeImports.RhGetCurrentThreadStackTrace(frameArray);
int realFrameCount = (returnedFrameCount >= 0 ? returnedFrameCount : frameArray.Length);
IntPtr ipAddress = (frameIndex < realFrameCount) ? frameArray[frameIndex] : IntPtr.Zero;
InitializeForIpAddress(ipAddress, needFileInfo);
}
private void InitializeForCurrentThread(int skipFrames, bool needFileInfo)
{
const int SystemDiagnosticsStackDepth = 2;
int frameCount = -RuntimeImports.RhGetCurrentThreadStackTrace(Array.Empty <IntPtr>());
Debug.Assert(frameCount >= 0);
IntPtr[] stackTrace = new IntPtr[frameCount];
int trueFrameCount = RuntimeImports.RhGetCurrentThreadStackTrace(stackTrace);
Debug.Assert(trueFrameCount == frameCount);
InitializeForIpAddressArray(stackTrace, skipFrames + SystemDiagnosticsStackDepth, frameCount, needFileInfo);
}
/// <summary>
/// Locate IP address corresponding to a given frame. Ignore .NET Native-specific rethrow markers.
/// </summary>
private IntPtr LocateIpAddressForStackFrame(int frameIndex)
{
IntPtr[] frameArray = new IntPtr[frameIndex + 1];
int returnedFrameCount = RuntimeImports.RhGetCurrentThreadStackTrace(frameArray);
int realFrameCount = (returnedFrameCount >= 0 ? returnedFrameCount : frameArray.Length);
if (frameIndex < realFrameCount)
{
return(frameArray[frameIndex]);
}
// No more frames are available
return(IntPtr.Zero);
}
