我正在寻找一种方法来生成我的应用程序中的minidump文件,类似于ProcDump所做的事情,但是使用代码并且不必提取3dparty工具来执行此操作。
不想使用ProcDump的主要原因是:
1)二进制文件的大小会大大增加(这是一个问题,因为我的应用程序是免费软件,带宽不是免费的。)
2)感觉很脏
3)我无法移植该应用程序来运行Windows Mobile。
我的要求是:
1)能够在fatale崩溃中生成mdump文件
2)能够“暂停”应用程序执行转储,并且contiune将是奖金。
如果这不是一个真正的选项,有没有办法动态地获取当前上下文中的局部变量值?
旁注:
我did fin这篇文章,但它已经很老了所以我非常犹豫不决我的工作。
似乎IE 9或网站存在问题,因此我遇到了标签问题。
答案 0 :(得分:6)
因此,我们会想到一个解决方案并实现以下目标:
我会给这个要求一个完整的未知数:
那么解决方案是什么?
从Microsoft Sample for MDbg.exe集成所需的部分,为您提供一个“即时”调试程序,用于附加,转储和分离崩溃过程。
步骤1 - 首先从这里将源代码下载到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,该处理程序生成调试程序进程并等待完成。我使用以下几行代码重新启动相同的exe,并使用一些额外的参数来调用调试器并将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或不同的exe中。您需要从示例中引用(或包括来自)'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>
由于你拥有调试器的全部功能,所以没有什么能阻止你编写尽可能多的内容,但是上面的例子应该让你开始。
<强>更新强>
这适用于.Net 2.0和/或3.5运行时,没有任何进一步的依赖。
这可以调试在.Net 4.0进程中运行的.Net 2.0 / 3.5代码;但是,它不适用于4.0(尚未)。
对于4.0 CLR,请看这篇文章: http://blogs.msdn.com/b/rmbyers/archive/2008/10/27/icordebug-re-architecture-in-clr-4-0.aspx
答案 1 :(得分:5)
您可以从MiniDumpWriteDump 或AppDomain.UnhandledException事件处理程序调用{{3}}来创建minidump。本文详细介绍了该功能:Application.ThreadException
您也可以使用此库还具有其他功能:Effective minidumps
修改强>
看起来获得一个有用的minidump并不容易。首先,当转储未满时,sos.dll会抱怨(完全转储大约为100-150MB)。其次,不建议在catch块中写入dump:Catch All Bugs with BugTrap!
如果你有一个winforms应用程序,这个问题有一些有用的信息:Getting good dumps when an exception is thrown.