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  • windbg+psscor2查看方法源代码

    按前面介绍的方法在异常时停下来,!DumpStack可以查看方法调用堆栈

    !DumpStack
    OS Thread Id: 0xa3c (29)
    Child-SP         RetAddr          Call Site
    000000000505df80 000007feef989413 KERNELBASE!RaiseException+0x3d
    000000000505e050 000007feefec3310 mscorwks!StrongNameFreeBuffer+0x53b7
    000000000505e140 000007ff001a064b mscorwks!CorLaunchApplication+0xee90
    000000000505e2f0 000007ff001a05a6 WebApplication1!WebApplication1._Default.Go(Int32, System.String)+0x7b

    000000000505e330 000007fede0f3ec9 WebApplication1!WebApplication1._Default.Page_Load(System.Object, System.EventArgs)+0x46 

    然后用!Name2EE查看某一个方法的MethodDescription

    0:029> !Name2EE WebApplication1!WebApplication1._Default.Go
    Module: 000007ff00168d70 (WebApplication1.DLL)
    Token: 0x0000000006000002
    MethodDesc: 000007ff00169358
    Name: WebApplication1._Default.Go(Int32, System.String)

    JITTED Code Address: 000007ff001a05d0 

    然后用!DumpIL查看某一个方法的IL代码

    0:029> !DumpIL 000007ff00169358
    ilAddr = 0000000060f42060
    IL_0000: nop 
    IL_0001: ldarg.1 
    IL_0002: stloc.0 
    IL_0003: ldstr "hello"
    IL_0008: newobj System.NullReferenceException::.ctor 
    IL_000d: throw 

    用!U可以查看生成的汇编源代码 

    0:029> !U 000007ff00169358
    Normal JIT generated code
    WebApplication1._Default.Go(Int32, System.String)
    Begin 000007ff001a05d0, size 83
    000007ff`001a05d0 4c89442418      mov     qword ptr [rsp+18h],r8
    000007ff`001a05d5 89542410        mov     dword ptr [rsp+10h],edx
    000007ff`001a05d9 48894c2408      mov     qword ptr [rsp+8],rcx
    000007ff`001a05de 53              push    rbx
    000007ff`001a05df 4883ec30        sub     rsp,30h
    000007ff`001a05e3 c744242000000000 mov     dword ptr [rsp+20h],0
    000007ff`001a05eb 48b870901600ff070000 mov rax,7FF00169070h
    000007ff`001a05f5 8b00            mov     eax,dword ptr [rax]
    000007ff`001a05f7 85c0            test    eax,eax
    000007ff`001a05f9 7405            je      000007ff`001a0600
    000007ff`001a05fb e8c0f4b3ef      call    mscorwks!CorMarkThreadInThreadPool+0x3f30 (000007fe`efcdfac0) (JitHelp: CORINFO_HELP_DBG_IS_JUST_MY_CODE)
    000007ff`001a0600 90              nop
    000007ff`001a0601 8b442448        mov     eax,dword ptr [rsp+48h]
    000007ff`001a0605 89442420        mov     dword ptr [rsp+20h],eax
    000007ff`001a0609 48ba708d1600ff070000 mov rdx,7FF00168D70h
    000007ff`001a0613 b90d000070      mov     ecx,7000000Dh
    000007ff`001a0618 e8f3a8c9ef      call    mscorwks!PreBindAssembly+0x5a5d0 (000007fe`efe3af10) (JitHelp: CORINFO_HELP_STRCNS)
    000007ff`001a061d 488bd8          mov     rbx,rax
    *** WARNING: Unable to verify checksum for C:\Windows\assembly\NativeImages_v2.0.50727_64\mscorlib\969da204960244f3570058daa0aa3256\mscorlib.ni.dll
    *** ERROR: Module load completed but symbols could not be loaded for C:\Windows\assembly\NativeImages_v2.0.50727_64\mscorlib\969da204960244f3570058daa0aa3256\mscorlib.ni.dll
    000007ff`001a0620 48b978301aeefe070000 mov rcx,offset mscorlib_ni+0x453078 (000007fe`ee1a3078)
    000007ff`001a062a e8c1e18def      call    mscorwks!IEE+0xbfa4 (000007fe`efa7e7f0) (JitHelp: CORINFO_HELP_NEWSFAST)
    000007ff`001a062f 4889442428      mov     qword ptr [rsp+28h],rax
    000007ff`001a0634 488bd3          mov     rdx,rbx
    000007ff`001a0637 488b4c2428      mov     rcx,qword ptr [rsp+28h]
    000007ff`001a063c e87ff952ee      call    mscorlib_ni+0x97ffc0 (000007fe`ee6cffc0) (System.NullReferenceException..ctor(System.String), mdToken: 06000c25)
    000007ff`001a0641 488b4c2428      mov     rcx,qword ptr [rsp+28h]
    000007ff`001a0646 e8952bd2ef      call    mscorwks!CorLaunchApplication+0xed60 (000007fe`efec31e0) (JitHelp: CORINFO_HELP_THROW)
    000007ff`001a064b 90              nop
    000007ff`001a064c 4883c430        add     rsp,30h
    000007ff`001a0650 5b              pop     rbx

    000007ff`001a0651 f3c3            rep ret 

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  • 原文地址:https://www.cnblogs.com/yuanxiaoping_21cn_com/p/2697527.html
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