mingw下 解析dll中全局函数

ULONG systemGetVarName(const string &userLib){
    if(ofs.is_open())
    {
        ofs.close();
    }
    ofs.open("d:\\log\\symbolTable.txt", ios::out);
    if(!ofs.is_open())
    {
        printf"pp.txt file open err\n");
        return 1;
    }
    ofs<<"address                  "<<"name"<<std::endl;
    DWORD64 address = 0;
    HANDLE hProcess = GetCurrentProcess();
    // HANDLE hThread = GetCurrentThread();

    BOOL bret = SymInitialize(hProcess,NULL,FALSE);
    if(!bret){
        ATE_LOG(ERR,"SymInitialize fail\n");
        return 2;
    }

    TCHAR szImageName[MAX_PATH];

#ifdef UNICODE
    _snprintf_s(szImageName, userLib.length(), "%S", userLib.c_str());
#else
    _snprintf_s(szImageName, userLib.length(), "%s", userLib.c_str());
#endif

    //DWORD64 dwBaseAddr = 0;

    address = SymLoadModuleEx(hProcess,    // target process
                        NULL,        // handle to image - not used
                        szImageName, // name of image file
                        NULL,        // name of module - not required
                        (DWORD64)m_hUserLibHandle,  // base address - not required
                        0,           // size of image - not required
                        NULL,        // MODLOAD_DATA used for special cases
                        0);
    if (!address)          // flags - not required
    {
        // SymLoadModuleEx failed
        DWORD error = GetLastError();
        ATE_LOG(ERR,"SymLoadModuleEx returned error : %d\n", error);
        return PROJECT_LOAD_DLL_FAILED;
    }
    bret = SymEnumSymbols(hProcess,address,"*",EnumSymCallBack,NULL);
    if(!bret)
    {
        SymCleanup(hProcess);
        ATE_LOG(ERR,"SymEnumSymbols fail\n");
        return PROJECT_LOAD_DLL_FAILED;
    }
    if(isObjectNameDuplicate)
    {
        isObjectNameDuplicate = false;
        SymCleanup(hProcess);
        return PROJECT_LOAD_DLL_FAILED;
    }
    SymCleanup(hProcess);
    return E_OK;
}

BOOL EnumSymCallBack(PSYMBOL_INFO pSymInfo, ULONG SymbolSize, PVOID UserContext)
{
    ofs<<hex<<pSymInfo->Address<<"                  "<<pSymInfo->Name<<std::endl;
   
    try
    {
        std::string temp = pSymInfo->Name;
        if(temp.size() && temp[0] != '_')
        {
            temp = "_"+temp;
        }
       
        int status;
        char *demangled =  abi::__cxa_demangle(temp.c_str(), NULL, NULL, &status);
        if(demangled)
        {
        // 可以被解析的函数
            ofs<< temp << " -> " << demangled << " " << status <<  std::endl;
            free(demangled);
        }else
        {
// 全局变量和c函数不会被解析
            ofs<<"func: " <<  pSymInfo->Name << " -> " << (uint64_t)pSymInfo->Address << std::endl;
        }
        
    }catch(...)
    {
        std::cout << "catch:" << std::endl;
    }
    
    return TRUE;
}