秒客网

dmp文件的分析，可以借助各种工具，比如WinDbg, CDB , NTSD，KD等。Windbg提供了窗口接口，而CDB , NTSD是基于命令行的工具，它们都使用了同样的调试引擎Dbgeng.dll，该调试引擎就是 “Windows 调试程序”。

 

dbgeng.dll 可以在基于x86,x64 或ARM的处理器上运行，并且可以调试在那些相同体系结构上运行的代码。

 

dbgeng.dll 的使用：

 

out.hpp  

#ifndef __OUT_HPP__
#define __OUT_HPP__

#include <DbgEng.h>

class StdioOutputCallbacks : public IDebugOutputCallbacks
{
public:
    // IUnknown.
    STDMETHOD(QueryInterface)(
        THIS_
        _In_ REFIID InterfaceId,
        _Out_ PVOID* Interface
        );
    STDMETHOD_(ULONG, AddRef)(
        THIS
        );
    STDMETHOD_(ULONG, Release)(
        THIS
        );

    // IDebugOutputCallbacks.
    STDMETHOD(Output)(
        THIS_
        _In_ ULONG Mask,
        _In_ PCSTR Text
        );
};

extern StdioOutputCallbacks g_OutputCb;

#endif // #ifndef __OUT_HPP__

 

out.cpp

#include <stdio.h>
#include <windows.h>
#include <dbgeng.h>
#include "out.hpp"

StdioOutputCallbacks g_OutputCb;
FILE *fp = NULL;

STDMETHODIMP
StdioOutputCallbacks::QueryInterface(
    THIS_
    _In_ REFIID InterfaceId,
    _Out_ PVOID* Interface
    )
{
    if (!fp) {
        fp = fopen("D:/ZZZ/analyze.txt", "w+");
    }

    *Interface = NULL;
    if (IsEqualIID(InterfaceId, __uuidof(IUnknown)) ||
        IsEqualIID(InterfaceId, __uuidof(IDebugOutputCallbacks)))
    {
        *Interface = (IDebugOutputCallbacks *)this;
        AddRef();
        return S_OK;
    }
    else
    {
        return E_NOINTERFACE;
    }
}

STDMETHODIMP_(ULONG)
StdioOutputCallbacks::AddRef(
    THIS
    )
{
    // This class is designed to be static so
    // there\'s no true refcount.
    return 1;
}

STDMETHODIMP_(ULONG)
StdioOutputCallbacks::Release(
    THIS
    )
{
    // This class is designed to be static so
    // there\'s no true refcount.
    //fclose(fp);
    return 0;
}

STDMETHODIMP
StdioOutputCallbacks::Output(
    THIS_
    _In_ ULONG Mask,
    _In_ PCSTR Text
    )
{
    UNREFERENCED_PARAMETER(Mask);
    //fputs(Text, fp);
    fputs(Text, stdout);
    return S_OK;
}
 

main.cpp

#include "out.hpp"

#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <windows.h>
#include <dbgeng.h>


PSTR g_DumpFile;
IDebugClient* g_Client;
IDebugControl* g_Control;
IDebugSymbols3* g_Symbols3;

void Exit(int Code, _In_ _Printf_format_string_ PCSTR Format, ...)
{
    // Clean up any resources.    
    if (g_Symbols3 != NULL)
    {
        g_Symbols3->Release();
    }

    if (g_Control != NULL) {
        g_Control->Release();
    }

    if (g_Client != NULL)
    {
        g_Client->SetOutputCallbacks(NULL);
        g_Client->EndSession(DEBUG_END_PASSIVE);
        g_Client->Release();
    }

    // Output an error message if given.
    if (Format != NULL)
    {
        va_list Args;
        va_start(Args, Format);
        vfprintf(stderr, Format, Args);
        va_end(Args);
    }
    exit(Code);
}

void CreateInterfaces(void)
{
    HRESULT Status;

    // Start things off by getting an initial interface from
    // the engine.  This can be any engine interface but is
    // generally IDebugClient as the client interface is
    // where sessions are started.
    if ((Status = DebugCreate(__uuidof(IDebugClient),
        (void**)&g_Client)) != S_OK)
    {
        Exit(1, "DebugCreate failed, 0x%X\n", Status);
    }

    // Query for some other interfaces that we\'ll need.
    if ((Status = g_Client->QueryInterface(__uuidof(IDebugControl),
        (void**)&g_Control)) != S_OK ||
        (Status = g_Client->QueryInterface(__uuidof(IDebugSymbols3),
        (void**)&g_Symbols3)) != S_OK)
    {
        Exit(1, "QueryInterface failed, 0x%X\n", Status);
    }
}

//typedef _Null_terminated_ CHAR *TTPSTR;
void ParseCommandLine(int Argc, _In_reads_(Argc) PSTR* Argv)
{
    int i;
    while (--Argc > 0)
    {
        Argv++;
        if (!strcmp(Argv[0], "-z"))
        {
            Argv++;
            Argc--;
            if (Argc > 0)
            {
                g_DumpFile = Argv[0];
            }
            else
            {
                Exit(1, "-z missing argument\n");
            }
        }
        else
        {
            //Exit(1, "Unknown command line argument \'%s\'\n", Argv[0]);
        }
    }

    if (g_DumpFile == NULL)
    {
        Exit(1, "No dump file specified, use -z <file>\n");
    }
}

void ApplyCommandLineArguments(void)
{
    HRESULT Status;

    // Install output callbacks so we get any output that the
    // later calls produce.
    if ((Status = g_Client->SetOutputCallbacks(&g_OutputCb)) != S_OK)
    {
        Exit(1, "SetOutputCallbacks failed, 0x%X\n", Status);
    }

    // Everything\'s set up so open the dump file.
    if ((Status = g_Client->OpenDumpFile(g_DumpFile)) != S_OK)
    {
        Exit(1, "OpenDumpFile failed, 0x%X\n", Status);
    }

    // Finish initialization by waiting for the event that
    // caused the dump.  This will return immediately as the
    // dump file is considered to be at its event.
    if ((Status = g_Control->WaitForEvent(DEBUG_WAIT_DEFAULT,
        INFINITE)) != S_OK)
    {
        Exit(1, "WaitForEvent failed, 0x%X\n", Status);
    }

    // Everything is now initialized and we can make any
    // queries we want.
}

void DumpStack(void)
{
    HRESULT Status;
    DEBUG_STACK_FRAME Frames[3] = { 0 };
    ULONG Filled;

    g_Symbols3->SetScopeFromStoredEvent();

    if (Frames == NULL)
    {
        Exit(1, "Unable to allocate stack frames\n");
    }

    if ((Status = g_Control->
        GetStackTrace(0, 0, 0,
            Frames, 3, &Filled)) != S_OK)
    {
        Exit(1, "GetStackTrace failed, 0x%X\n", Status);
    }

    printf("\nFirst %d frames of the call stack:\n", Filled);

    //// Print the call stack.
    if ((Status = g_Control->
        OutputStackTrace(DEBUG_OUTCTL_ALL_CLIENTS, Frames,
            Filled, DEBUG_STACK_ARGUMENTS | DEBUG_STACK_SOURCE_LINE |
            DEBUG_STACK_FRAME_ADDRESSES |
            DEBUG_STACK_COLUMN_NAMES |
            DEBUG_STACK_FRAME_NUMBERS)) != S_OK)
    {
        Exit(1, "OutputStackTrace failed, 0x%X\n", Status);
    }
}

int main(int argc, char *argv[])
{
    CreateInterfaces();
    ParseCommandLine(argc, argv);
    ApplyCommandLineArguments();
    DumpStack();
    return 0;
}