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A Mixed-Mode Stackwalk with the IDebugClient Interface

, 22 Apr 2012
A native stackwalk funtion like Stackwalk64 cannot handle mixed-mode stacks, since managed code does not use the stack in the same way as native code does. There is an API called IDebugClient, that does walk a mixed-mode stack correctly, which we will explore.
MixedModeStack_demo.zip
MixedModeStack_demo
CppCliApp.exe
CppCliApp.ilk
CppCliApp.pdb
DiagApp.exe
DiagApp.ilk
DiagApp.pdb
ManagedLib0.dll
ManagedLib0.pdb
MixedLib1.dll
MixedLib1.ilk
MixedLib1.pdb
MixedStackTraceLibrary.dll
MixedStackTraceLibrary.ilk
MixedStackTraceLibrary.pdb
StackTraceLibrary.dll
StackTraceLibrary.pdb
StackWalk64App.exe
StackWalk64App.ilk
StackWalk64App.pdb
MixedModeStack_src.zip
MixedModeStack_src
SampleApps
CppCliApp
app.ico
CppCliApp.vcxproj.filters
CppCliApp.vcxproj.user
Debug
CppCliApp.Build.CppClean.log
CppCliApp.log
Debug
ManagedLib0
bin
Debug
Release
obj
Debug
TempPE
Properties
MixedLib1
app.ico
Debug
MixedLib1.Build.CppClean.log
MixedLib1.log
MixedLib1.vcxproj.filters
MixedLib1.vcxproj.user
MixedStackTraceLibrary
app.ico
Debug
MixedStackTraceLibrary.Build.CppClean.log
MixedStackTraceLibrary.log
MixedStackTraceLibrary.vcxproj.filters
MixedStackTraceLibrary.vcxproj.user
sdk
inc
lib
dbgeng.lib
dbghelp.lib
engextcpp.lib
StackTraceLibrary
bin
Debug
Release
obj
Debug
TempPE
Properties
StackwalkApps
Debug
DiagApp
app.ico
Debug
DiagApp.log
DiagApp.vcxproj.filters
DiagApp.vcxproj.user
sdk
inc
lib
dbgeng.lib
dbghelp.lib
engextcpp.lib
xclrdata
StackWalk64App
Debug
StackWalk64App.log
sdk
inc
lib
dbgeng.lib
dbghelp.lib
engextcpp.lib
StackWalk64App.vcxproj.filters
StackWalk64App.vcxproj.user
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProductVersion>8.0.30703</ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{284E5E28-338D-450E-8B88-F1D985A9C49A}</ProjectGuid>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>StackTraceLibrary</RootNamespace>
    <AssemblyName>StackTraceLibrary</AssemblyName>
    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System" />
    <Reference Include="System.Core" />
    <Reference Include="System.Xml.Linq" />
    <Reference Include="System.Data.DataSetExtensions" />
    <Reference Include="Microsoft.CSharp" />
    <Reference Include="System.Data" />
    <Reference Include="System.Xml" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="StackTraceHelper.cs" />
    <Compile Include="Properties\AssemblyInfo.cs" />
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
       Other similar extension points exist, see Microsoft.Common.targets.
  <Target Name="BeforeBuild">
  </Target>
  <Target Name="AfterBuild">
  </Target>
  -->
</Project>

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This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)

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About the Author

Mattias Högström
Architect Visma Software AB
Sweden Sweden
Mattias works at Visma, a leading Nordic ERP solution provider. He has good knowledge in C++/.Net development, test tool development, and debugging. His great passion is memory dump analysis. He likes giving talks and courses.
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Web03 | 2.8.140916.1 | Last Updated 22 Apr 2012
Article Copyright 2012 by Mattias Högström
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