diff --git a/de4dot.blocks/StackTracePatcher.cs b/de4dot.blocks/StackTracePatcher.cs
new file mode 100644
index 00000000..e97432f0
--- /dev/null
+++ b/de4dot.blocks/StackTracePatcher.cs
@@ -0,0 +1,95 @@
+/*
+ Copyright (C) 2011-2013 de4dot@gmail.com
+
+ This file is part of de4dot.
+
+ de4dot is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ de4dot is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with de4dot. If not, see .
+*/
+
+using System;
+using System.Reflection;
+using System.Diagnostics;
+
+namespace de4dot.blocks {
+ public class StackTracePatcher {
+ static readonly FieldInfo methodField;
+ static readonly FieldInfo framesField;
+ static readonly FieldInfo iMethodsToSkip;
+
+ static StackTracePatcher() {
+ methodField = GetStackFrameMethodField();
+ framesField = GetStackTraceStackFramesField();
+ iMethodsToSkip = GetMethodsToSkip();
+ }
+
+ static FieldInfo GetStackFrameMethodField() {
+ var flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
+ return GetFieldThrow(typeof(StackFrame), typeof(MethodBase), flags, "Could not find StackFrame's method (MethodBase) field");
+ }
+
+ static FieldInfo GetStackTraceStackFramesField() {
+ var flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
+ return GetFieldThrow(typeof(StackTrace), typeof(StackFrame[]), flags, "Could not find StackTrace's frames (StackFrame[]) field");
+ }
+
+ static FieldInfo GetMethodsToSkip() {
+ var flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
+ return GetFieldThrow(typeof(StackTrace), "m_iMethodsToSkip", flags, "Could not find StackTrace's iMethodsToSkip field");
+ }
+
+ static FieldInfo GetFieldThrow(Type type, Type fieldType, BindingFlags flags, string msg) {
+ var info = GetField(type, fieldType, flags);
+ if (info != null)
+ return info;
+ throw new ApplicationException(msg);
+ }
+
+ static FieldInfo GetField(Type type, Type fieldType, BindingFlags flags) {
+ foreach (var field in type.GetFields(flags)) {
+ if (field.FieldType == fieldType)
+ return field;
+ }
+ return null;
+ }
+
+ static FieldInfo GetFieldThrow(Type type, string fieldName, BindingFlags flags, string msg) {
+ var info = GetField(type, fieldName, flags);
+ if (info != null)
+ return info;
+ throw new ApplicationException(msg);
+ }
+
+ static FieldInfo GetField(Type type, string fieldName, BindingFlags flags) {
+ foreach (var field in type.GetFields(flags)) {
+ if (field.Name == fieldName)
+ return field;
+ }
+ return null;
+ }
+
+ public static StackTrace WriteStackFrame(StackTrace stackTrace, int frameNo, MethodBase newMethod) {
+ var framesField = GetStackTraceStackFramesField();
+ var frames = (StackFrame[])framesField.GetValue(stackTrace);
+ int numFramesToSkip = (int)iMethodsToSkip.GetValue(stackTrace);
+ WriteMethodBase(frames[numFramesToSkip + frameNo], newMethod);
+ return stackTrace;
+ }
+
+ static void WriteMethodBase(StackFrame frame, MethodBase method) {
+ methodField.SetValue(frame, method);
+ if (frame.GetMethod() != method)
+ throw new ApplicationException(string.Format("Could not set new method: {0}", method));
+ }
+ }
+}
diff --git a/de4dot.blocks/de4dot.blocks.csproj b/de4dot.blocks/de4dot.blocks.csproj
index ce78064d..677d22f4 100644
--- a/de4dot.blocks/de4dot.blocks.csproj
+++ b/de4dot.blocks/de4dot.blocks.csproj
@@ -76,6 +76,7 @@
+