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一、简介
今天是《Net 高级调试》的第七篇文章。上一篇文章我们说了值类型,引用类型,数组等的内存表现形式。有了这个基础,我们可以更好的了解我们的程序在运行时的状态,内存里有什么东西,它们的结构组成是什么样子的,对我们调试程序是更有帮助的。今天,我们要说一些和线程有关的话题,虽然和线程相关,但是不是多线程的知识,不是线程安全的知识。今天我们讨论的是如何查看线程,它的表现形式,以及线程的调用栈,调用栈,又分为托管线程的调用栈和非托管线程的调用栈,这些也是我们高级调试必须掌握的。有了这些基础,我们就知道了程序的开始端点,调试的起点我们就找到了。虽然这些都是基础,如果这些掌握不好,以后的高级调试的道路,也不好走。当然了,第一次看视频或者看书,是很迷糊的,不知道如何操作,还是那句老话,一遍不行,那就再来一遍,还不行,那就再来一遍,俗话说的好,书读千遍,其意自现。
如果在没有说明的情况下,所有代码的测试环境都是 Net Framewok 4.8,但是,有时候为了查看源码,可能需要使用 Net Core 的项目,我会在项目章节里进行说明。好了,废话不多说,开始我们今天的调试工作。
调试环境我需要进行说明,以防大家不清楚,具体情况我已经罗列出来。
操作系统:Windows Professional 10
调试工具:Windbg Preview(可以去Microsoft Store 去下载)
开发工具:Visual Studio 2022
Net 版本:Net Framework 4.8
CoreCLR源码:源码下载
二、基础知识
1、线程类相关介绍
1.1、简介
在高级调试的过程中,很难不和 线程、线程栈 打交道,所以好好的学习并掌握有关线程操作的命令是很有必要的。
2、获取 线程列表 的命令
2.1、查看线程列表。
可以使用【!t】命令获取所有的托管线程。
2.2、使用 Net 7.0 查看线程列表
可以使用【!t】命令获取所有的托管线程,如果我们想查看 CLR 的线程对象的结构就只能使用开源版本了,这里使用Net 7.0。
3、查看非托管线程栈
Windbg 是随 Windows 成长起来的非托管调试器,它自带的命令只能查看非托管调用栈,因为 C# 中的线程栈是托管函数,而托管函数是一种运行时编译的,所以这个命令往往看不到托管部分。
3.1、使用 k 命令查看非托管线程栈
【k】命令可以查看线程栈,但是么有办法展示托管函数,作为补充,可以使用【!clrstack】命令。
3.2、使用 kb 命令查看线程栈。
很多时候我们需要获取非托管函数的参数,这个时候我们可以使用【kb】命令。
3.3、查看托管函数栈
SOS 提供了一个专门查看托管函数调用栈的命令,毕竟只有 JIT更熟悉托管函数,也知道编译后的机器码放在什么位置。
这个命令就是【!clrstack】。
!clrstack -a:这个命令表示将线程栈中的所有局部变量和参数全部输出。
!clrstack -p:这个命令表示将线程栈中的参数全部输出。
!clrstack -l:这个命令表示将线程栈中的所有局部变量全部输出。
我们还可以查看所有托管线程栈,可以使用【~*e】命令。
3.4、查看托管和非托管合体
使用【!dumpstack】命令查看托管和非托管的线程栈。
3.5、执行所有线程的 DumpStack。
如果我们想查看所有线程的线程栈,可以使用【!EEStack】,也可以使用【~*e !dumpstack】,结果是一样的。
三、测试过程
废话不多说,这一节是具体的调试操作的过程,又可以说是眼见为实的过程,在开始之前,我还是要啰嗦两句,这一节分为两个部分,第一部分是测试的源码部分,没有代码,当然就谈不上测试了,调试必须有载体。第二部分就是根据具体的代码来证实我们学到的知识,是具体的眼见为实。
1、测试源码
1.1、Example_7_1_1
- 1 namespace Example_7_1_1
- 2 {
- 3 internal class Program
- 4 {
- 5 static void Main(string[] args)
- 6 {
- 7 int a = 10;
- 8 int b = 11;
- 9 Test(12);
- 10 Console.ReadLine();
- 11 }
- 12
- 13 private static void Test(int c)
- 14 {
- 15 Task.Run(() => { Run1(); });
- 16 Task.Run(() => { Run2(); });
- 17 Task.Run(() => { Run3(); });
- 18 }
- 19
- 20 private static void Run1()
- 21 {
- 22 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run1 正在运行");
- 23 Console.ReadLine();
- 24 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run1 结束运行");
- 25 }
- 26
- 27 private static void Run2()
- 28 {
- 29 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run2 正在运行");
- 30 Console.ReadLine();
- 31 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run2 结束运行");
- 32 }
- 33
- 34 private static void Run3()
- 35 {
- 36 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run3 正在运行");
- 37 Console.ReadLine();
- 38 Console.WriteLine($"tid={Environment.CurrentManagedThreadId},Run3 结束运行");
- 39 }
- 40 }
- 41 }
复制代码 View Code
1.2、Example_7_1_2(特别说明,这个项目是 Net 7.0)
- 1 namespace Example_7_1_2
- 2 {
- 3 internal class Program
- 4 {
- 5 static void Main(string[] args)
- 6 {
- 7 Console.WriteLine("Hello, World!");
- 8 Debugger.Break();
- 9 }
- 10 }
- 11 }
复制代码 View Code
2、眼见为实
项目的所有操作都是一样的,所以就在这里说明一下,但是每个测试例子,都需要重新启动,并加载相应的应用程序,加载方法都是一样的。流程如下:我们编译项目,打开 Windbg,点击【文件】----》【launch executable】附加程序,打开调试器的界面,程序已经处于中断状态。我们需要使用【g】命令,继续运行程序,然后到达指定地点停止后,我们可以点击【break】按钮,就可以调试程序了。有时候可能需要切换到主线程,可以使用【~0s】命令。
2.1、使用 【!t】命令查看进程中有多少个托管线程。
测试源码:Example_7_1_1- 1 0:012> !t
- 2 ThreadCount: 6
- 3 UnstartedThread: 0
- 4 BackgroundThread: 5
- 5 PendingThread: 0
- 6 DeadThread: 0
- 7 Hosted Runtime: no
- 8 Lock
- 9 ID OSID ThreadOBJ State GC Mode GC Alloc Context Domain Count Apt Exception
- 10 0 1 2ef4 00c73930 2a020 Preemptive 02B94F38:00000000 00c6d758 1 MTA
- 11 5 2 39c0 00cb0728 2b220 Preemptive 00000000:00000000 00c6d758 0 MTA (Finalizer)
- 12 9 3 17dc 00cdc010 3029220 Preemptive 02B9C6C8:00000000 00c6d758 0 MTA (Threadpool Worker)
- 13 10 4 a18 00cdc9b8 3029220 Preemptive 02B98350:00000000 00c6d758 0 MTA (Threadpool Worker)
- 14 11 5 31d0 00cdd360 3029220 Preemptive 02B9A350:00000000 00c6d758 0 MTA (Threadpool Worker)
- 15 13 6 9a0 00ce05c0 1029220 Preemptive 02B9E1E8:00000000 00c6d758 0 MTA (Threadpool Worker)
复制代码 ThreadCount:有多少个托管线程,这个进程里面有6个。
UnstartedThread:已经创建,但是还没有使用的线程,当前数量是0。
BackgroundThread:后台线程的数量,这个进程里面有5个。
PendingThread:阻塞的线程的数量,当前这个进程是0个阻塞的线程。
DeadThread:当一个线程完成任务,但是还没有被回收,这个阶段的线程就是死线程,也就是说这个线程对象底层的数据结构的 OSID 已经销毁。
以上就是介绍的主要名称,下面接着介绍,列表的每一项。我们使用 C# Thread 类型声明一个线程的时候,其实在操作系统和CLR都有一个数据结构相对应,有了 OSID我们才可以在任务管理器中看到线程对象。
第一列,没有标题,是 WindbgThreadId,Windbg 自己的给 Thread 打了一个标记,便于以后使用,也可以区分托管线程和非托管线程。
第二列 ID:是托管线程,也就是我们 Thread 类型的标识符 Id,就是 这段代码的值:Environment.CurrentManagedThreadId
第三列 OSID:操作系统线程的 ID,
第四列 ThreadOBJ:CLR 底层的 Thread 线程对象,可以使用【dp】命令观察其中的内容,我们查看托管线程 ID=3 的【00cdc010】内容,红色标注就是托管线程的ID,就是3。
- 1 0:012> dp 00cdc010
- 2 00cdc010 72074bd4 <strong>03029220</strong> 00000000 055ff680
- 3 00cdc020 00000000 00c6d758 00000000 <strong>00000003</strong>
- 4 00cdc030 00cdc034 00cdc034 00cdc034 00000000
- 5 00cdc040 00000000 baad0000 00c6ed50 0094f000
- 6 00cdc050 02b9c6c8 02b9dfe8 00003d10 00000000
- 7 00cdc060 00000000 00000000 00000000 00000000
- 8 00cdc070 00000000 baadf00d 70ad2c60 00cdc850
- 9 00cdc080 00000000 00000000 00000000 00000000
复制代码
第五列 State:CLR 层面的线程状态,03029220 就是托管线程的状态。我们可以点进去或者使用【!threadstate】命令查看线程状态详情,当前就是托管线程是3的状态。
- 1 0:012> !ThreadState 3029220
- 2 Legal to Join(可以执行 join 操作)
- 3 Background(是后台线程)
- 4 CLR Owns(是CLR 拥有的线程)
- 5 In Multi Threaded Apartment(是MTA模式)
- 6 Fully initialized(已经完全初始化)
- 7 Thread Pool Worker Thread(是线程池线程)
- 8 Interruptible(可执行中断操作)
复制代码
第六列 GC Mode:表示当前的线程有没有操作托管堆的权限。
第七列 GC Alloc Context:缓冲区的开始节点和结束节点,每个线程在托管堆中分配一个对象,都有一个缓冲区,这个就是确定了缓冲区起始和结束。
第八列 Domain:表示当前线程所属于的域。
第九列 Lock Count:表示当前的线程有多少个托管锁。
第十列 Apt:表示线程是 STA(线程串行模式,WPF、WinForm) 模式还是 MTA (多线程并行模式)模式。
第十一列 Exception:在当前线程上发生了异常,会把这个异常和这个线程关联起来。
Finalizer 表示当前是终结器线程,Threadpool Worker 表示线程是线程池的线程。
2.2、如何查看 CLR Thread 的结构,也就是查看 ThreadOBJ 的结构。
测试源码:Example_7_1_2(Net 7.0项目)
如果我们想在 Net Framework 环境下查看 CLR 线程对象的结构是很难的,因为他是不开源的,所以我们只能新建 Net 7.0 的项目。
输出所有的线程列表。- 1 0:000> !t
- 2 ThreadCount: 3
- 3 UnstartedThread: 0
- 4 BackgroundThread: 2
- 5 PendingThread: 0
- 6 DeadThread: 0
- 7 Hosted Runtime: no
- 8 Lock
- 9 DBG ID OSID ThreadOBJ State GC Mode GC Alloc Context Domain Count Apt Exception
- 10 0 1 624 00000199DFD0CAE0 2a020 Preemptive 00000199E440AD60:00000199E440C750 00000199dfd02dd0 -00001 MTA
- 11 5 2 1344 00000199DFD51DD0 21220 Preemptive 0000000000000000:0000000000000000 00000199dfd02dd0 -00001 Ukn (Finalizer)
- 12 6 3 3b40 000001DA763B15E0 2b220 Preemptive 0000000000000000:0000000000000000 00000199dfd02dd0 -00001 MTA
复制代码 然后,我们使用【dt】命令,查看线程的结构。
View Code +0x020 m_ThreadId : 1表示托管线程的ID。因为我打印的是 ThreadOBJ 为00000199DFD0CAE0 线程的结构。m 表示Management 托管的。
我们可以继续看看 GC Alloc Context,在输出的结构中有这样一行代码:+0x058 m_alloc_context : gc_alloc_context,蓝色的字体,可以点击,相当于执行【dx】命令。- 1 0:000> dx -r1 (*((coreclr!gc_alloc_context *)0x199dfd0cb38))
- 2 (*((coreclr!gc_alloc_context *)0x199dfd0cb38)) [Type: gc_alloc_context]
- 3 [+0x000] alloc_ptr : 0x199e440ad60 : 0x0 [Type: unsigned char *]
- 4 [+0x008] alloc_limit : 0x199e440c750 : 0x0 [Type: unsigned char *]
- 5 [+0x010] alloc_bytes : 50920 [Type: __int64](小对象堆的大小)
- 6 [+0x018] alloc_bytes_uoh : 17416 [Type: __int64](大对象堆的大小)
- 7 [+0x020] gc_reserved_1 : 0x0 [Type: void *]
- 8 [+0x028] gc_reserved_2 : 0x0 [Type: void *]
- 9 [+0x030] alloc_count : 0 [Type: int]
复制代码 2.3、使用 Windbg 的【k】命令查看非托管函数。
测试源码:Example_7_1_1
这里操作需要切换到主线程上,执行命令【~0s】,然后使用【k】命令。- 1 0:010> ~0s
- 2 eax=00000000 ebx=00000090 ecx=00000000 edx=00000000 esi=00f3f444 edi=00000000
- 3 eip=77c310fc esp=00f3f32c ebp=00f3f38c iopl=0 nv up ei pl nz na po nc
- 4 cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000202
- 5 ntdll!NtReadFile+0xc:
- 6 77c310fc c22400 ret 24h
- 7
- 8
- 9 0:000> k
- 10 # ChildEBP RetAddr
- 11 00 00f3f38c 75dbf25c ntdll!NtReadFile+0xc
- 12 01 00f3f38c 70f79b71 KERNELBASE!ReadFile+0xec
- 13 02 00f3f3fc 716ab275 mscorlib_ni+0x4b9b71
- 14 03 00f3f428 716ab17b ...
- 15<strong> WARNING: Frame IP not in any known module. Following frames may be wrong.(无法显示托管函数)
- </strong>16 09 00f3f4b8 71faf036 0x2e9088e
- 17 0a 00f3f4c4 71fb22da clr!CallDescrWorkerInternal+0x34
- 18 0b 00f3f518 71fb859b clr!CallDescrWorkerWithHandler+0x6b
- 19 0c 00f3f588 7215b11b clr!MethodDescCallSite::CallTargetWorker+0x16a
- 20 0d 00f3f6ac 7215b7fa clr!RunMain+0x1b3
- 21 0e 00f3f918 7215b727 clr!Assembly::ExecuteMainMethod+0xf7
- 22 0f 00f3fdfc 7215b8a8 clr!SystemDomain::ExecuteMainMethod+0x5ef
- 23 10 00f3fe54 7215b9ce clr!ExecuteEXE+0x4c
- 24 11 00f3fe94 72157305 clr!_CorExeMainInternal+0xdc
- 25 12 00f3fed0 7275fa84 clr!_CorExeMain+0x4d
- 26 13 00f3ff08 7285e81e mscoreei!_CorExeMain+0xd6
- 27 14 00f3ff18 72864338 MSCOREE!ShellShim__CorExeMain+0x9e
- 28 15 00f3ff30 7636f989 MSCOREE!_CorExeMain_Exported+0x8
- 29 16 00f3ff30 77c27084 KERNEL32!BaseThreadInitThunk+0x19
- 30 17 00f3ff8c 77c27054 ntdll!__RtlUserThreadStart+0x2f
- 31 18 00f3ff9c 00000000 ntdll!_RtlUserThreadStart+0x1b
复制代码 但是我们可以使用 SOS的【!clrstack】命令显示托管函数。- 1 0:000> !clrstack
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 6 00f3f3ac 716ab275 [InlinedCallFrame: 00f3f3ac] Microsoft.Win32.Win32Native.ReadFile(..., Int32, Int32 ByRef, IntPtr)
- 7 00f3f410 716ab275 System.IO.__ConsoleStream.ReadFileNative(.., Int32 ByRef) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 205]
- 8 00f3f444 716ab17b System.IO.__ConsoleStream.Read(Byte[], Int32, Int32) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 134]
- 9 00f3f464 70f5e6a3 System.IO.StreamReader.ReadBuffer() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 595]
- 10 00f3f474 70f5eb5b System.IO.StreamReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 748]
- 11 00f3f490 717f3786 System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 12 00f3f4a0 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 13 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\...\Example_7_1_1\Program.cs @ 13]
- 14 00f3f62c 71faf036 [GCFrame: 00f3f62c]
复制代码 2.4、使用【kb】命令查看线程栈,提取 ntdll!NtReadFile 的第一个参数。
测试源码:Example_7_1_1 - 1 0:000> kb
- 2 # ChildEBP RetAddr Args to Child
- 3 00 00f3f38c 75dbf25c <strong>00000090</strong> 00000000 00000000 <strong>ntdll!NtReadFile</strong>+0xc
- 4 01 00f3f38c 70f79b71 00000090 02f35d18 00000100 KERNELBASE!ReadFile+0xec
- 5 02 00f3f3fc 716ab275 00000000 00f3f444 00000100 mscorlib_ni+0x4b9b71
- 6 03 00f3f428 716ab17b 00f3f444 00000000 00000001 mscorlib_ni!System.IO.__ConsoleStream.ReadFileNative+0x89 [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 205]
- 7 04 00f3f454 70f5e6a3 00000100 00000000 02f3a210 mscorlib_ni!System.IO.__ConsoleStream.Read+0x9f [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 134]
- 8 05 00f3f46c 70f5eb5b 00000001 00000000 00f3f55c mscorlib_ni!System.IO.StreamReader.ReadBuffer+0x33 [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 595]
- 9 06 00f3f488 717f3786 00000000 00f3f4d0 00f3f4a0 mscorlib_ni!System.IO.StreamReader.ReadLine+0xe3 [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 748]
- 10 07 00f3f498 71651845 00f3f4b8 02e9088e 00000000 mscorlib_ni!System.IO.TextReader.SyncTextReader.ReadLine+0x1a [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 11 08 00f3f4a0 02e9088e 00000000 0000000b 0000000a mscorlib_ni!System.Console.ReadLine+0x15 [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 12 WARNING: Frame IP not in any known module. Following frames may be wrong.
- 13 09 00f3f4b8 71faf036 0116a628 00f3f518 71fb22da 0x2e9088e
- 14 0a 00f3f4c4 71fb22da 00f3f55c 00f3f508 720a23d0 clr!CallDescrWorkerInternal+0x34
- 15 0b 00f3f518 71fb859b 00f3f570 02f324bc 00000000 clr!CallDescrWorkerWithHandler+0x6b
- 16 0c 00f3f588 7215b11b 00f3f664 6a38df42 02d04d78 clr!MethodDescCallSite::CallTargetWorker+0x16a
- 17 0d 00f3f6ac 7215b7fa 00f3f6f0 00000000 6a38d0f6 clr!RunMain+0x1b3
- 18 0e 00f3f918 7215b727 00000000 6a38d412 00b70000 clr!Assembly::ExecuteMainMethod+0xf7
- 19 0f 00f3fdfc 7215b8a8 6a38d7ba 00000000 00000000 clr!SystemDomain::ExecuteMainMethod+0x5ef
- 20 10 00f3fe54 7215b9ce 6a38d77a 00000000 721572e0 clr!ExecuteEXE+0x4c
- 21 11 00f3fe94 72157305 6a38d73e 00000000 721572e0 clr!_CorExeMainInternal+0xdc
- 22 12 00f3fed0 7275fa84 8ee8ef1f 72864330 7275fa20 clr!_CorExeMain+0x4d
- 23 13 00f3ff08 7285e81e 72864330 72750000 00f3ff30 mscoreei!_CorExeMain+0xd6
- 24 14 00f3ff18 72864338 72864330 7636f989 00c95000 MSCOREE!ShellShim__CorExeMain+0x9e
- 25 15 00f3ff30 7636f989 00c95000 7636f970 00f3ff8c MSCOREE!_CorExeMain_Exported+0x8
- 26 16 00f3ff30 77c27084 00c95000 281a60a3 00000000 KERNEL32!BaseThreadInitThunk+0x19
- 27 17 00f3ff8c 77c27054 ffffffff 77c462ae 00000000 ntdll!__RtlUserThreadStart+0x2f
- 28 18 00f3ff9c 00000000 00000000 00000000 00000000 ntdll!_RtlUserThreadStart+0x1b
复制代码 ntdll!NtReadFile 方法的第一个参数是一个 Handle,我们可以使用【!handle】命令+ f 参数显示详情。Console.ReadLine()方法底层就是 File 的句柄。- 1 0:000> !handle 00000090 f
- 2 Handle 90
- 3 Type File
- 4 Attributes 0
- 5 GrantedAccess 0x12019f:
- 6 ReadControl,Synch
- 7 Read/List,Write/Add,Append/SubDir/CreatePipe,ReadEA,WriteEA,ReadAttr,WriteAttr
- 8 HandleCount 2
- 9 PointerCount 65531
- 10 No Object Specific Information available
复制代码 2.5、我们使用【!clrstack】命令查看托管函数。
测试源码:Example_7_1_1
!clrstack 执行效果- 1 0:000> !clrstack
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(..., Byte*, Int32, Int32 ByRef, IntPtr)
- 6 00f3f3ac 716ab275 [InlinedCallFrame: 00f3f3ac] Microsoft.Win32.Win32Native.ReadFile(... Byte*, Int32, Int32 ByRef, IntPtr)
- 7 00f3f410 716ab275 System.IO.__ConsoleStream.ReadFileNative(.. Int32 ByRef) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 205]
- 8 00f3f444 716ab17b System.IO.__ConsoleStream.Read(Byte[], Int32, Int32) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 134]
- 9 00f3f464 70f5e6a3 System.IO.StreamReader.ReadBuffer() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 595]
- 10 00f3f474 70f5eb5b System.IO.StreamReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 748]
- 11 00f3f490 717f3786 System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 12 00f3f4a0 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 13 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\...\Example_7_1_1\Program.cs @ 13]
- 14 00f3f62c 71faf036 [GCFrame: 00f3f62c]
复制代码 !clrstack -a:显示所有参数和局部变量,关注红色标注的。- 1 0:000> !clrstack -a
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 6 PARAMETERS:
- 7 <no data>
- 8 <no data>
- 9 <no data>
- 10 <no data>
- 11 <no data>
- 12 ...(内容太多,就省略了,也没用)
- 13
- 14 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\..\Example_7_1_1\Program.cs @ 13]
- 15 <strong> PARAMETERS:(参数)
- </strong>16 args (0x00f3f4b4) = 0x02f324bc(参数)
- 17 <strong> LOCALS:(局部变量)
- </strong>18 0x00f3f4b0 = 0x0000000a
- 19 0x00f3f4ac = 0x0000000b
- 20
- 21 00f3f62c 71faf036 [GCFrame: 00f3f62c]
复制代码 !clrstack -l:显示所有局部变量,关注红色标注的。- 1 0:000> !clrstack -l
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 6 ...(内容太多,就省略了,也没用)
- 7
- 8 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\...\Example_7_1_1\Program.cs @ 13]
- 9 <strong> LOCALS:(只有局部变量)
- </strong>10 0x00f3f4b0 = 0x0000000a
- 11 0x00f3f4ac = 0x0000000b
- 12
- 13 00f3f62c 71faf036 [GCFrame: 00f3f62c]
复制代码 !clrstack -p:显示所有参数,关注红色标注的。- 1 0:000> !clrstack -p
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 6 PARAMETERS:
- 7 <no data>
- 8 <no data>
- 9 <no data>
- 10 <no data>
- 11 <no data>
- 12
- 13 ...(内容太多,就省略了,也没用)
- 14
- 15 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\...\Example_7_1_1\Program.cs @ 13]
- 16 <strong> PARAMETERS:(只有参数)
- </strong>17 args (0x00f3f4b4) = 0x02f324bc
- 18
- 19 00f3f62c 71faf036 [GCFrame: 00f3f62c]
复制代码 2.6、使用【~*e】查看所有托管线程栈。
测试源码:Example_7_1_1
~ 命令输出所有线程列表。- 1 0:000> ~
- 2 . 0 Id: 2074.c08 Suspend: 1 Teb: 00c98000 Unfrozen
- 3 1 Id: 2074.2cdc Suspend: 1 Teb: 00c9b000 Unfrozen
- 4 2 Id: 2074.3bec Suspend: 1 Teb: 00c9e000 Unfrozen
- 5 3 Id: 2074.1a34 Suspend: 1 Teb: 00ca1000 Unfrozen
- 6 4 Id: 2074.3858 Suspend: 1 Teb: 00ca4000 Unfrozen
- 7 5 Id: 2074.379c Suspend: 1 Teb: 00ca7000 Unfrozen
- 8 6 Id: 2074.3088 Suspend: 1 Teb: 00caa000 Unfrozen
- 9 7 Id: 2074.2c54 Suspend: 1 Teb: 00cad000 Unfrozen
- 10 8 Id: 2074.20dc Suspend: 1 Teb: 00cb0000 Unfrozen
- 11 9 Id: 2074.2014 Suspend: 1 Teb: 00cb3000 Unfrozen
- 12 # 10 Id: 2074.187c Suspend: 1 Teb: 00cc2000 Unfrozen
- 13 11 Id: 2074.2b64 Suspend: 1 Teb: 00cb9000 Unfrozen
- 14 12 Id: 2074.1358 Suspend: 1 Teb: 00cbc000 Unfrozen
- 15 13 Id: 2074.6e8 Suspend: 1 Teb: 00cbf000 Unfrozen
复制代码 ~* 命令,显示所有线程列表和入口函数。- 1 0:000> ~*
- 2 . 0 Id: 2074.c08 Suspend: 1 Teb: 00c98000 Unfrozen
- 3 Start: 00402bca
- 4 Priority: 0 Priority class: 32 Affinity: f
- 5 1 Id: 2074.2cdc Suspend: 1 Teb: 00c9b000 Unfrozen
- 6 Start: ntdll!TppWorkerThread (77c10c90)
- 7 Priority: 0 Priority class: 32 Affinity: f
- 8 2 Id: 2074.3bec Suspend: 1 Teb: 00c9e000 Unfrozen
- 9 Start: ntdll!TppWorkerThread (77c10c90)
- 10 Priority: 0 Priority class: 32 Affinity: f
- 11 3 Id: 2074.1a34 Suspend: 1 Teb: 00ca1000 Unfrozen
- 12 Start: ntdll!TppWorkerThread (77c10c90)
- 13 Priority: 0 Priority class: 32 Affinity: f
- 14 4 Id: 2074.3858 Suspend: 1 Teb: 00ca4000 Unfrozen
- 15 Start: clr!DebuggerRCThread::ThreadProcStatic (721565d0)
- 16 Priority: 0 Priority class: 32 Affinity: f
- 17 5 Id: 2074.379c Suspend: 1 Teb: 00ca7000 Unfrozen
- 18 Start: clr!Thread::intermediateThreadProc (72074b60)
- 19 Priority: 2 Priority class: 32 Affinity: f
- 20 6 Id: 2074.3088 Suspend: 1 Teb: 00caa000 Unfrozen
- 21 Start: combase!CRpcThreadCache::RpcWorkerThreadEntry (7731bcc0)
- 22 Priority: 0 Priority class: 32 Affinity: f
- 23 7 Id: 2074.2c54 Suspend: 1 Teb: 00cad000 Unfrozen
- 24 Start: ntdll!TppWorkerThread (77c10c90)
- 25 Priority: 0 Priority class: 32 Affinity: f
- 26 8 Id: 2074.20dc Suspend: 1 Teb: 00cb0000 Unfrozen
- 27 Start: ntdll!TppWorkerThread (77c10c90)
- 28 Priority: 0 Priority class: 32 Affinity: f
- 29 9 Id: 2074.2014 Suspend: 1 Teb: 00cb3000 Unfrozen
- 30 Start: clr!Thread::intermediateThreadProc (72074b60)
- 31 Priority: 0 Priority class: 32 Affinity: f
- 32 # 10 Id: 2074.187c Suspend: 1 Teb: 00cc2000 Unfrozen
- 33 Start: ntdll!DbgUiRemoteBreakin (77c6cee0)
- 34 Priority: 0 Priority class: 32 Affinity: f
- 35 11 Id: 2074.2b64 Suspend: 1 Teb: 00cb9000 Unfrozen
- 36 Start: clr!Thread::intermediateThreadProc (72074b60)
- 37 Priority: 0 Priority class: 32 Affinity: f
- 38 12 Id: 2074.1358 Suspend: 1 Teb: 00cbc000 Unfrozen
- 39 Start: clr!Thread::intermediateThreadProc (72074b60)
- 40 Priority: 0 Priority class: 32 Affinity: f
- 41 13 Id: 2074.6e8 Suspend: 1 Teb: 00cbf000 Unfrozen
- 42 Start: clr!Thread::intermediateThreadProc (72074b60)
- 43 Priority: 0 Priority class: 32 Affinity: f
复制代码 ~*e !clrstack 命令执行的结果,内容太多,折叠了。
- 1 0:000> ~*e !clrstack
- 2 OS Thread Id: 0xc08 (0)
- 3 Child SP IP Call Site
- 4 00f3f3ac 77c310fc [InlinedCallFrame: 00f3f3ac]
- 5 00f3f3a8 70f79b71 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 6 00f3f3ac 716ab275 [InlinedCallFrame: 00f3f3ac] Microsoft.Win32.Win32Native.ReadFile(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr)
- 7 00f3f410 716ab275 System.IO.__ConsoleStream.ReadFileNative(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte[], Int32, Int32, Boolean, Boolean, Int32 ByRef) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 205]
- 8 00f3f444 716ab17b System.IO.__ConsoleStream.Read(Byte[], Int32, Int32) [f:\dd\ndp\clr\src\BCL\system\io\__consolestream.cs @ 134]
- 9 00f3f464 70f5e6a3 System.IO.StreamReader.ReadBuffer() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 595]
- 10 00f3f474 70f5eb5b System.IO.StreamReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\streamreader.cs @ 748]
- 11 00f3f490 717f3786 System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 12 00f3f4a0 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 13 00f3f4a8 02e9088e Example_7_1_1.Program.Main(System.String[]) [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 13]
- 14 00f3f62c 71faf036 [GCFrame: 00f3f62c]
- 15 OS Thread Id: 0x2cdc (1)
- 16 Unable to walk the managed stack. The current thread is likely not a
- 17 managed thread. You can run !threads to get a list of managed threads in
- 18 the process
- 19 Failed to start stack walk: 80070057
- 20 OS Thread Id: 0x3bec (2)
- 21 Unable to walk the managed stack. The current thread is likely not a
- 22 managed thread. You can run !threads to get a list of managed threads in
- 23 the process
- 24 Failed to start stack walk: 80070057
- 25 OS Thread Id: 0x1a34 (3)
- 26 Unable to walk the managed stack. The current thread is likely not a
- 27 managed thread. You can run !threads to get a list of managed threads in
- 28 the process
- 29 Failed to start stack walk: 80070057
- 30 OS Thread Id: 0x3858 (4)
- 31 Unable to walk the managed stack. The current thread is likely not a
- 32 managed thread. You can run !threads to get a list of managed threads in
- 33 the process
- 34 Failed to start stack walk: 80070057
- 35 OS Thread Id: 0x379c (5)
- 36 Child SP IP Call Site
- 37 050cfd48 77c3166c [DebuggerU2MCatchHandlerFrame: 050cfd48]
- 38 OS Thread Id: 0x3088 (6)
- 39 Unable to walk the managed stack. The current thread is likely not a
- 40 managed thread. You can run !threads to get a list of managed threads in
- 41 the process
- 42 Failed to start stack walk: 80070057
- 43 OS Thread Id: 0x2c54 (7)
- 44 Unable to walk the managed stack. The current thread is likely not a
- 45 managed thread. You can run !threads to get a list of managed threads in
- 46 the process
- 47 Failed to start stack walk: 80070057
- 48 OS Thread Id: 0x20dc (8)
- 49 Unable to walk the managed stack. The current thread is likely not a
- 50 managed thread. You can run !threads to get a list of managed threads in
- 51 the process
- 52 Failed to start stack walk: 80070057
- 53 OS Thread Id: 0x2014 (9)
- 54 Child SP IP Call Site
- 55 0596f060 77c3166c [GCFrame: 0596f060]
- 56 0596f1b0 77c3166c [HelperMethodFrame: 0596f1b0] System.Threading.Monitor.Enter(System.Object)
- 57 0596f220 717f377b System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 58 0596f230 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 59 0596f238 02e90b59 Example_7_1_1.Program.Run1() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 26]
- 60 0596f274 02e90a94 Example_7_1_1.Program+c.b__1_0() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 18]
- 61 0596f280 70f1d4bb System.Threading.Tasks.Task.InnerInvoke() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2884]
- 62 0596f28c 70f1b731 System.Threading.Tasks.Task.Execute() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2498]
- 63 0596f2b0 70f1b6fc System.Threading.Tasks.Task.ExecutionContextCallback(System.Object) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2861]
- 64 0596f2b4 70eb8604 System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 980]
- 65 0596f320 70eb8537 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 928]
- 66 0596f334 70f1b4b2 System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2827]
- 67 0596f398 70f1b357 System.Threading.Tasks.Task.ExecuteEntry(Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2767]
- 68 0596f3a8 70f1b29d System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2704]
- 69 0596f3ac 70e8eb7d System.Threading.ThreadPoolWorkQueue.Dispatch() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 820]
- 70 0596f3fc 70e8e9db System.Threading._ThreadPoolWaitCallback.PerformWaitCallback() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 1161]
- 71 0596f61c 71faf036 [DebuggerU2MCatchHandlerFrame: 0596f61c]
- 72 OS Thread Id: 0x187c (10)
- 73 Unable to walk the managed stack. The current thread is likely not a
- 74 managed thread. You can run !threads to get a list of managed threads in
- 75 the process
- 76 Failed to start stack walk: 80070057
- 77 OS Thread Id: 0x2b64 (11)
- 78 Child SP IP Call Site
- 79 05b2f018 77c3166c [GCFrame: 05b2f018]
- 80 05b2f0f8 77c3166c [HelperMethodFrame_1OBJ: 05b2f0f8] System.Threading.Monitor.Enter(System.Object)
- 81 05b2f170 717f377b System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 82 05b2f180 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 83 05b2f188 02e90c31 Example_7_1_1.Program.Run2() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 33]
- 84 05b2f1c4 02e90acc Example_7_1_1.Program+c.b__1_1() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 19]
- 85 05b2f1d0 70f1d4bb System.Threading.Tasks.Task.InnerInvoke() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2884]
- 86 05b2f1dc 70f1b731 System.Threading.Tasks.Task.Execute() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2498]
- 87 05b2f200 70f1b6fc System.Threading.Tasks.Task.ExecutionContextCallback(System.Object) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2861]
- 88 05b2f204 70eb8604 System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 980]
- 89 05b2f270 70eb8537 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 928]
- 90 05b2f284 70f1b4b2 System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2827]
- 91 05b2f2e8 70f1b357 System.Threading.Tasks.Task.ExecuteEntry(Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2767]
- 92 05b2f2f8 70f1b29d System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2704]
- 93 05b2f2fc 70e8eb7d System.Threading.ThreadPoolWorkQueue.Dispatch() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 820]
- 94 05b2f34c 70e8e9db System.Threading._ThreadPoolWaitCallback.PerformWaitCallback() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 1161]
- 95 05b2f56c 71faf036 [DebuggerU2MCatchHandlerFrame: 05b2f56c]
- 96 OS Thread Id: 0x1358 (12)
- 97 Child SP IP Call Site
- 98 05c6f480 77c3166c [GCFrame: 05c6f480]
- 99 05c6f5d0 77c3166c [HelperMethodFrame: 05c6f5d0] System.Threading.Monitor.Enter(System.Object)
- 100 05c6f640 717f377b System.IO.TextReader+SyncTextReader.ReadLine() [f:\dd\ndp\clr\src\BCL\system\io\textreader.cs @ 363]
- 101 05c6f650 71651845 System.Console.ReadLine() [f:\dd\ndp\clr\src\BCL\system\console.cs @ 1984]
- 102 05c6f658 02e90d41 Example_7_1_1.Program.Run3() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 40]
- 103 05c6f694 02e90cb4 Example_7_1_1.Program+c.b__1_2() [E:\Visual Studio 2022\Source\Projects\AdvancedDebug.NetFramework.Test\Example_7_1_1\Program.cs @ 20]
- 104 05c6f6a0 70f1d4bb System.Threading.Tasks.Task.InnerInvoke() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2884]
- 105 05c6f6ac 70f1b731 System.Threading.Tasks.Task.Execute() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2498]
- 106 05c6f6d0 70f1b6fc System.Threading.Tasks.Task.ExecutionContextCallback(System.Object) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2861]
- 107 05c6f6d4 70eb8604 System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 980]
- 108 05c6f740 70eb8537 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\executioncontext.cs @ 928]
- 109 05c6f754 70f1b4b2 System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2827]
- 110 05c6f7b8 70f1b357 System.Threading.Tasks.Task.ExecuteEntry(Boolean) [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2767]
- 111 05c6f7c8 70f1b29d System.Threading.Tasks.Task.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem() [f:\dd\ndp\clr\src\BCL\system\threading\Tasks\Task.cs @ 2704]
- 112 05c6f7cc 70e8eb7d System.Threading.ThreadPoolWorkQueue.Dispatch() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 820]
- 113 05c6f81c 70e8e9db System.Threading._ThreadPoolWaitCallback.PerformWaitCallback() [f:\dd\ndp\clr\src\BCL\system\threading\threadpool.cs @ 1161]
- 114 05c6fa3c 71faf036 [DebuggerU2MCatchHandlerFrame: 05c6fa3c]
- 115 OS Thread Id: 0x6e8 (13)
- 116 Child SP IP Call Site
- 117 GetFrameContext failed: 1
- 118 00000000 00000000
复制代码 View Code
2.7、使用【!dumpstack】命令查看托管和非托管的线程栈。
测试源码:Example_7_1_1
需要切换到主线程,然后执行命令【!dumpstack】- 1 0:000> !dumpstack
- 2 OS Thread Id: 0x710 (0)
- 3 Current frame: ntdll!NtReadFile+0xc
- 4 ChildEBP RetAddr Caller, Callee
- 5 00daef38 75dbf25c KERNELBASE!ReadFile+0xec, calling ntdll!NtReadFile
- ......
- 66 00daf7d0 71fb9704 clr!Alloc+0x142, calling clr!_EH_epilog3
- 67 00daf7d8 71fc3cbc clr!HndLogSetEvent+0x15, calling clr!GCEventEnabledSetGCHandle
- 68 00daf9b0 77c052fe ntdll!RtlAllocateHeap+0x3e, calling ntdll!RtlpAllocateHeapInternal
- 69 00daf9d0 7213ca2c clr!EEStartupHelper+0xabb, calling clr!_EH_epilog3
- 70 00daf9d4 7213b55b clr!EEStartup+0xb8, calling clr!_SEH_epilog4
- 71 00dafa0c 7215b8a8 clr!ExecuteEXE+0x4c, calling clr!SystemDomain::ExecuteMainMethod
- 72 00dafa64 7215b9ce clr!_CorExeMainInternal+0xdc, calling clr!ExecuteEXE
- 73 00dafaa4 72157305 clr!_CorExeMain+0x4d, calling clr!_CorExeMainInternal
- 74 00dafae0 7275fa84 mscoreei!_CorExeMain+0xd6
- 75 00dafafc 7636f4c4 KERNEL32!GetProcAddressStub+0x14, calling KERNELBASE!GetProcAddressForCaller
- 76 00dafb18 7285e81e MSCOREE!ShellShim__CorExeMain+0x9e
- 77 00dafb28 72864338 MSCOREE!_CorExeMain_Exported+0x8, calling MSCOREE!ShellShim__CorExeMain
- 78 00dafb30 7636f989 KERNEL32!BaseThreadInitThunk+0x19
- 79 00dafb40 77c27084 ntdll!__RtlUserThreadStart+0x2f
- 80 00dafb9c 77c27054 ntdll!_RtlUserThreadStart+0x1b, calling ntdll!__RtlUserThreadStart
复制代码 我们可以使用【!dumpstack -ee】只查看托管栈。- 1 0:000> !dumpstack -ee
- 2 OS Thread Id: 0x710 (0)
- 3 Current frame:
- 4 ChildEBP RetAddr Caller, Callee
- 5 00daef9c 70f79b71 (MethodDesc 70c438c4 +0x69 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr))
- 6 00daefc8 70f79b71 (MethodDesc 70c438c4 +0x69 DomainNeutralILStubClass.IL_STUB_PInvoke(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte*, Int32, Int32 ByRef, IntPtr))
- 7 00daf00c 716ab275 (MethodDesc 70cf7a24 +0x89 System.IO.__ConsoleStream.ReadFileNative(Microsoft.Win32.SafeHandles.SafeFileHandle, Byte[], Int32, Int32, Boolean, Boolean, Int32 ByRef))
- 8 00daf038 716ab17b (MethodDesc 70cf7a4c +0x9f System.IO.__ConsoleStream.Read(Byte[], Int32, Int32))
- 9 00daf064 70f5e6a3 (MethodDesc 70c2d964 +0x33 System.IO.StreamReader.ReadBuffer())
- 10 00daf07c 70f5eb5b (MethodDesc 70c2d96c +0xe3 System.IO.StreamReader.ReadLine())
- 11 00daf098 717f3786 (MethodDesc 70d22100 +0x1a System.IO.TextReader+SyncTextReader.ReadLine())
- 12 00daf0a8 71651845 (MethodDesc 70c19e00 +0x15 System.Console.ReadLine())
- 13 00daf0b0 0144088e (MethodDesc 01184d78 +0x46 Example_7_1_1.Program.Main(System.String[]))
复制代码 2.8、使用【!eestack】和【~*e !dumpstack】查看所有的线程栈。
测试源码:Example_7_1_1- 1 0:000> !eestack
- 2 ---------------------------------------------
- 3 Thread 0
- 4 Current frame: ntdll!NtReadFile+0xc
- 5 ChildEBP RetAddr Caller, Callee
- 6 。。。。
- 7 内容太多,省略了。
复制代码 ~*e !dumpstack执行效果- 1 0:000> ~*e !dumpstack
- 2 OS Thread Id: 0x710 (0)
- 3 Current frame: ntdll!NtReadFile+0xc
- 4 ChildEBP RetAddr Caller, Callee
- 5 00daef38 75dbf25c KERNELBASE!ReadFile+0xec, calling ntdll!NtReadFile
- 6 ......
- 7 内容太多,省略了。
复制代码 eestack 命令,可以增加参数,比如:-short,我们可以使用 SOS 的帮助命令查看某个命令的解释,比如:eestack。- 1 0:010> !sos.help eestack
- 2 -------------------------------------------------------------------------------
- 3 !EEStack [-short] [-EE]
- 4
- 5 This command runs !DumpStack on all threads in the process. The -EE option is
- 6 passed directly to !DumpStack. The -short option tries to narrow down the
- 7 output to "interesting" threads only, which is defined by
- 8
- 9 1) The thread has taken a lock.(可以显示具有锁的线程)
- 10 2) The thread has been "hijacked" in order to allow a garbage collection.(可以显示被“劫持”的线程)
- 11 3) The thread is currently in managed code.(可以显示托管线程)
- 12
- 13 See the documentation for !DumpStack for more info.
复制代码 四、总结
终于写完了,今天这篇文章是第六篇。我们了解了线程和线程调用栈,那调试起来我们就知道如何开始了,知道如何查找参数和局部变量,知道线程栈地址,哦我们可以输出线程栈的内容,对值类型和引用类型了解的也更深入了,当然对线程了解也更深入了,终于做到知其一也知其二了。其实这些知识是相互作用的,不是独立的,任何一个环节的调试,都需要很多技巧。好了,不说了,不忘初心,继续努力,希望老天不要辜负努力的人。
来源:https://www.cnblogs.com/PatrickLiu/archive/2023/11/10/17819104.html
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