2012-03-22 96 views
3

我不知道我沒做什麼,但我根本無法讓我自己的調試器保存正在調試的應用程序的「Mutex Owned」或「Mutex Free」信息。調試器:如何在崩潰轉儲中獲取「互斥鎖擁有」或「無互斥鎖」信息?

CDB工作正常,如果我把它叫做如下:

cdb -pn test.exe -c ".dump /f /ma /u test.dmp;.detach;q" 

當我WinDbg打開崩潰轉儲文件,並鍵入以下命令,我看到了互斥免費或互斥擁有狀態:

0:001> !handle 0 f Mutant 
Handle 7f4 
    Type    Mutant 
    Attributes  0 
    GrantedAccess 0x1f0001: 
     Delete,ReadControl,WriteDac,WriteOwner,Synch 
     QueryState 
    HandleCount  2 
    PointerCount  4 
    Name    \BaseNamedObjects\PAUL_HANG_MUTEX 
    Object Specific Information 
Mutex is Owned <--- THIS HERE IS WHAT I WANT TO SEE 

下面是我的函數 - 我不得不註釋掉一些MiniDumpWith選項,因爲它根本不會寫入崩潰轉儲文件,除非我將它們評論出來。

有人知道爲什麼CDB可以在使用/ ma時保存信息,但我自己的代碼卻不能?

void WriteCrashDump(EXCEPTION_DEBUG_INFO *pExceptionInfo) 
{ 
    CONTEXT c; 

    memset(&c, 0, sizeof(c)); 

    GetThreadContext(hThread, &c); 

    EXCEPTION_POINTERS ep; 

    memset(&ep, 0, sizeof(ep)); 

    ep.ContextRecord = &c; 
    ep.ExceptionRecord = &pExceptionInfo->ExceptionRecord; 

    MINIDUMP_EXCEPTION_INFORMATION minidump_exception; 

    memset(&minidump_exception, 0, sizeof(minidump_exception)); 

    minidump_exception .ThreadId   = dwThreadId; 
    minidump_exception.ExceptionPointers = &ep; 
    minidump_exception.ClientPointers = true; 

    char txDumpPath[ MAX_PATH + 1 ]; 

    sprintf(txDumpPath, "%s.dmp", txProcess); 

    HANDLE hFile = CreateFile(txDumpPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); 

    if(hFile) 
    { 
    BOOL fSuccess; 


    SetLastError(0L); 

    int nDumpOptions = 

    MiniDumpNormal 
| MiniDumpWithDataSegs     
| MiniDumpWithFullMemory     
| MiniDumpWithHandleData     
| MiniDumpFilterMemory     
| MiniDumpScanMemory      
| MiniDumpWithUnloadedModules   
| MiniDumpWithIndirectlyReferencedMemory 
| MiniDumpFilterModulePaths    
| MiniDumpWithProcessThreadData   
| MiniDumpWithPrivateReadWriteMemory  
| MiniDumpWithoutOptionalData   
//| MiniDumpWithFullMemoryInfo    
//| MiniDumpWithThreadInfo     
//| MiniDumpWithCodeSegs     
//| MiniDumpWithoutManagedState   
    ; 

    fSuccess = MiniDumpWriteDump(hProcess, 
            dwProcessId, 
            hFile, 
            (MINIDUMP_TYPE) nDumpOptions, 
            &minidump_exception, 
            NULL, 
            NULL); 

    DWORD dwErr = GetLastError(); 

    if(! fSuccess) 
      printf("MiniDumpWriteDump -FAILED (LastError:%u)\n", dwErr); 

     CloseHandle(hFile); 
    } 
} 

回答

2

這豈不是包括即使有標誌MiniDumpWithHandleData互斥的信息,它也可能是失敗的,因爲一些標誌可能與你在呼喚對DebugHlp.dll的版本兼容。見MINIDUMP_TYPE enumeration