因此,有一个解决方案浮现在脑海中,并满足以下目标:
-
二进制文件的大小将增加大约30万。
-
能够在致命的崩溃中生成mdump文件。
-
能够“暂停”应用程序进行转储,继续将是一个奖励
我将给出一个完全未知的要求:
-
我无法将该应用程序移植到运行Inn Windows Mobile。
那么解决方案是什么?
从mdbg.exe的Microsoft示例中集成所需的部分,以便为您提供一个“实时”调试器,用于附加、转储和从崩溃过程中分离。
步骤1-首先从以下位置将源代码下载到MDBG:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=38449a42-6b7a-4e28-80ce-c55645ab1310&DisplayLang=en
步骤2-创建一个“崩溃”处理程序,生成一个调试器进程并等待完成。我使用下面几行代码重新启动同一个EXE,并用几个额外的参数调用调试器,并将一个XML文件输出到STD::OUT。
string tempFile = Path.GetTempFileName();
Mutex handle = new Mutex(true, typeof(Program).Namespace + "-self-debugging");
try
{
Process pDebug = Process.Start(typeof(Program).Assembly.Location,
"debug-dump " + Process.GetCurrentProcess().Id + " " + tempFile);
if (pDebug != null)
pDebug.WaitForExit();
}
catch { }
finally
{
handle.ReleaseMutex();
}
Console.WriteLine(File.ReadAllText(tempFile));
步骤3-编写调试转储例程,这可以在同一个exe中,也可以在不同的exe中。您将需要引用(或包括来自)示例中的“raw”、“corapi”和“mdbgeng”模块。然后在main()中添加几行:
public static void Main(string[] args)
{
if (args.Length > 0 && args[0] == "debug-dump")
{ //debug-dump process by id = args[1], output = args[2]
using (XmlTextWriter wtr = new XmlTextWriter(args[2], Encoding.ASCII))
{
wtr.Formatting = Formatting.Indented;
PerformDebugDump(Int32.Parse(args[1]), wtr);
}
return;
}
//... continue normal program execution
}
static void PerformDebugDump(int process, XmlWriter x)
{
x.WriteStartElement("process");
x.WriteAttributeString("id", process.ToString());
x.WriteAttributeString("time", XmlConvert.ToString(DateTime.Now, XmlDateTimeSerializationMode.RoundtripKind));
MDbgEngine e = new MDbgEngine();
MDbgProcess me = e.Attach(process);
me.Go().WaitOne();
try
{
x.WriteStartElement("modules");
foreach (MDbgModule mod in me.Modules)
x.WriteElementString("module", mod.CorModule.Name);
x.WriteEndElement();
foreach (MDbgThread thread in me.Threads)
{
x.WriteStartElement("thread");
x.WriteAttributeString("id", thread.Id.ToString());
x.WriteAttributeString("number", thread.Number.ToString());
int ixstack = -1;
foreach (MDbgFrame frame in thread.Frames)
{
x.WriteStartElement("frame");
x.WriteAttributeString("ix", (++ixstack).ToString());
x.WriteAttributeString("loc", frame.ToString(String.Empty));
string valueText = null;
x.WriteStartElement("args");
try
{
foreach (MDbgValue value in frame.Function.GetArguments(frame))
{
x.WriteStartElement(value.Name);
x.WriteAttributeString("type", value.TypeName);
try { x.WriteAttributeString("value", value.GetStringValue(1, false)); }
finally { x.WriteEndElement(); }
}
}
catch { }
x.WriteEndElement();
x.WriteStartElement("locals");
try
{
foreach (MDbgValue value in frame.Function.GetActiveLocalVars(frame))
{
x.WriteStartElement(value.Name);
x.WriteAttributeString("type", value.TypeName);
try { x.WriteAttributeString("value", value.GetStringValue(1, false)); }
finally { x.WriteEndElement(); }
}
}
catch { }
x.WriteEndElement();
x.WriteEndElement();
}
x.WriteEndElement();
}
}
finally
{
me.Detach().WaitOne();
}
x.WriteEndElement();
}
示例输出
<process id="8276" time="2010-10-18T16:03:59.3781465-05:00">
<modules>
<module>C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll</module>
...etc
</modules>
<thread id="17208" number="0">
<frame ix="0" loc="System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop (source line information unavailable)">
<args>
<this type="System.Windows.Forms.Application.ComponentManager" value="System.Windows.Forms.Application.ComponentManager
 oleComponents=System.Collections.Hashtable
 cookieCounter=1
 activeComponent=System.Windows.Forms.Application.ThreadContext
 trackingComponent=<null>
 currentState=0" />
<dwComponentID type="N/A" value="<N/A>" />
<reason type="System.Int32" value="-1" />
<pvLoopData type="System.Int32" value="0" />
</args>
<locals>
<local_0 type="System.Int32" value="0" />
<local_1 type="System.Boolean" value="True" />
<local_2 type="System.Windows.Forms.UnsafeNativeMethods.IMsoComponent" value="<null>" />
<local_3 type="N/A" value="<N/A>" />
<local_4 type="N/A" value="<N/A>" />
<local_5 type="N/A" value="<N/A>" />
<local_6 type="System.Windows.Forms.Application.ThreadContext" value="System.Windows.Forms.Application.ThreadContext
 contextHash=System.Collections.Hashtable
 tcInternalSyncObject=System.Object
 totalMessageLoopCount=1
 baseLoopReason=-1
 currentThreadContext=System.Windows.Forms.Application.ThreadContext
 threadExceptionHandler=System.Threading.ThreadExceptionEventHandler
 idleHandler=<null>
 enterModalHandler=<null>
 leaveModalHandler=<null>
 applicationContext=System.Windows.Forms.ApplicationContext
 parkingWindow=<null>
 marshalingControl=System.Windows.Forms.Application.MarshalingControl
 culture=<null>
 messageFilters=<null>
 messageFilterSnapshot=<null>
 handle=912
 id=17208
 messageLoopCount=1
 threadState=1
 modalCount=0
 activatingControlRef=<null>
 componentManager=System.Windows.Forms.Application.ComponentManager
 externalComponentManager=False
 fetchingComponentManager=False
 componentID=1
 currentForm=Program.MainForm
 threadWindows=<null>
 tempMsg=System.Windows.Forms.NativeMethods.MSG
 disposeCount=0
 ourModalLoop=False
 messageLoopCallback=<null>
 __identity=<null>" />
<local_7 type="N/A" value="<N/A>" />
<local_8 type="N/A" value="<N/A>" />
<local_9 type="N/A" value="<N/A>" />
<local_10 type="N/A" value="<N/A>" />
<local_11 type="N/A" value="<N/A>" />
<local_12 type="N/A" value="<N/A>" />
<local_13 type="System.Boolean" value="False" />
<local_14 type="System.Windows.Forms.NativeMethods.MSG[]" value="array [1]
 [0] = System.Windows.Forms.NativeMethods.MSG" />
</locals>
</frame>
<frame ix="1" loc="System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner (source line information unavailable)">
<args>
<this type="System.Windows.Forms.Application.ThreadContext" value="System.Windows.Forms.Application.ThreadContext
 contextHash=System.Collections.Hashtable
 tcInternalSyncObject=System.Object
 totalMessageLoopCount=1
 baseLoopReason=-1
 currentThreadContext=System.Windows.Forms.Application.ThreadContext
 threadExceptionHandler=System.Threading.ThreadExceptionEventHandler
 idleHandler=<null>
 enterModalHandler=<null>
 leaveModalHandler=<null>
 applicationContext=System.Windows.Forms.ApplicationContext
 parkingWindow=<null>
 marshalingControl=System.Windows.Forms.Application.MarshalingControl
 culture=<null>
 messageFilters=<null>
 messageFilterSnapshot=<null>
 handle=912
 id=17208
 messageLoopCount=1
 threadState=1
 modalCount=0
 activatingControlRef=<null>
 componentManager=System.Windows.Forms.Application.ComponentManager
 externalComponentManager=False
 fetchingComponentManager=False
 componentID=1
 currentForm=Program.MainForm
 threadWindows=<null>
 tempMsg=System.Windows.Forms.NativeMethods.MSG
 disposeCount=0
 ourModalLoop=False
 messageLoopCallback=<null>
 __identity=<null>" />
<reason type="System.Int32" value="-1" />
<context type="System.Windows.Forms.ApplicationContext" value="System.Windows.Forms.ApplicationContext
 mainForm=Program.MainForm
 userData=<null>
 ThreadExit=System.EventHandler" />
</args>
<locals>
<local_0 type="System.Windows.Forms.Form" value="<null>" />
<local_1 type="System.Boolean" value="False" />
<local_2 type="N/A" value="<N/A>" />
<local_3 type="N/A" value="<N/A>" />
<local_4 type="N/A" value="<N/A>" />
</locals>
</frame>
... etc
</thread>
</process>
由于您拥有调试程序的全部功能,所以没有任何东西可以阻止您编写您喜欢的那么多或那么少的内容,但是上面的示例应该可以让您开始编写。
更新
这与.NET 2.0和/或3.5运行时一起工作,没有任何进一步的依赖关系。
这可以调试在.NET 4.0进程中运行的.NET 2.0/3.5代码;但是,它还不能与4.0一起工作。
有关4.0 clr,请参阅以下文章:
http://blogs.msdn.com/b/rmbyers/archive/2008/10/27/icordebug-re-architecture-in-clr-4-0.aspx
