原文：https://blog.csdn.net/wangshubo1989/article/details/52586516
之前写过在windows开发中，让你的客户端崩溃之前生成dump文件，今天稍微改动改动用在qt上吧。
windows客户端开发–让你的客户端崩溃之前生成dump文件
定义一个类叫CCrashStack：
crashstack.h
#ifndef CCRASHSTACK_H
#define CCRASHSTACK_H
#include <windows.h>
#include <QString>
class CCrashStack
{
private:
PEXCEPTION_POINTERS m_pException;
private:
QString GetModuleByRetAddr(PBYTE Ret_Addr, PBYTE & Module_Addr);
QString GetCallStack(PEXCEPTION_POINTERS pException);
QString GetVersionStr();
bool GetHardwareInaformation(QString &graphics_card, QString &sound_deivce);
public:
CCrashStack(PEXCEPTION_POINTERS pException);
QString GetExceptionInfo();
};
#endif // CCRASHSTACK_H
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crashstack.cc
#include "crashstack.h"
#include <tlhelp32.h>
#include <stdio.h>
#define _WIN32_DCOM
#include <comdef.h>
#include <Wbemidl.h>
#include<base/constants.h>
#include "qdebug.h"
CCrashStack::CCrashStack(PEXCEPTION_POINTERS pException)
{
m_pException = pException;
}
QString CCrashStack::GetModuleByRetAddr(PBYTE Ret_Addr, PBYTE & Module_Addr)
{
MODULEENTRY32 M = {sizeof(M)};
HANDLE hSnapshot;
wchar_t Module_Name[MAX_PATH] = {0};
hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, 0);
if ((hSnapshot != INVALID_HANDLE_VALUE) &&
Module32First(hSnapshot, &M))
{
do
{
if (DWORD(Ret_Addr - M.modBaseAddr) < M.modBaseSize)
{
lstrcpyn(Module_Name, M.szExePath, MAX_PATH);
Module_Addr = M.modBaseAddr;
break;
}
} while (Module32Next(hSnapshot, &M));
}
CloseHandle(hSnapshot);
QString sRet = QString::fromWCharArray(Module_Name);
return sRet;
}
QString CCrashStack::GetCallStack(PEXCEPTION_POINTERS pException)
{
PBYTE Module_Addr_1;
char bufer[256]={0};
QString sRet;
typedef struct STACK
{
STACK * Ebp;
PBYTE Ret_Addr;
DWORD Param[0];
} STACK, * PSTACK;
STACK Stack = {0, 0};
PSTACK Ebp;
if (pException) //fake frame for exception address
{
Stack.Ebp = (PSTACK)pException->ContextRecord->Ebp;
Stack.Ret_Addr = (PBYTE)pException->ExceptionRecord->ExceptionAddress;
Ebp = &Stack;
}
else
{
Ebp = (PSTACK)&pException - 1; //frame addr of Get_Call_Stack()
// Skip frame of Get_Call_Stack().
if (!IsBadReadPtr(Ebp, sizeof(PSTACK)))
Ebp = Ebp->Ebp; //caller ebp
}
// Break trace on wrong stack frame.
for (; !IsBadReadPtr(Ebp, sizeof(PSTACK)) && !IsBadCodePtr(FARPROC(Ebp->Ret_Addr));
Ebp = Ebp->Ebp)
{
// If module with Ebp->Ret_Addr found.
memset(bufer,0, sizeof(0));
sprintf(bufer, "\n%08X ", (unsigned int)Ebp->Ret_Addr);
sRet.append(bufer);
QString moduleName = this->GetModuleByRetAddr(Ebp->Ret_Addr, Module_Addr_1) ;
if (moduleName.length() > 0)
{
sRet.append(moduleName);
}
}
return sRet;
} //Get_Call_Stack
QString CCrashStack::GetVersionStr()
{
OSVERSIONINFOEX V = {sizeof(OSVERSIONINFOEX)}; //EX for NT 5.0 and later
if (!GetVersionEx((POSVERSIONINFO)&V))
{
ZeroMemory(&V, sizeof(V));
V.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx((POSVERSIONINFO)&V);
}
if (V.dwPlatformId != VER_PLATFORM_WIN32_NT)
V.dwBuildNumber = LOWORD(V.dwBuildNumber); //for 9x HIWORD(dwBuildNumber) = 0x04xx
QString graphics_module = "GraphicsCard: ";
QString sound_module = "SoundDevice: ";
GetHardwareInaformation(graphics_module, sound_module);
QString sRet = QString("APP Version: %1\n").arg(APP_VERSION);
sRet.append(QString("Windows: %1.%2.%3, SP %4.%5, Product Type %6\n")
.arg(V.dwMajorVersion).arg(V.dwMinorVersion).arg(V.dwBuildNumber)
.arg(V.wServicePackMajor).arg(V.wServicePackMinor).arg(V.wProductType));
sRet.append(graphics_module);
sRet.append(sound_module);
return sRet;
}
QString CCrashStack::GetExceptionInfo()
{
WCHAR Module_Name[MAX_PATH];
PBYTE Module_Addr;
QString sRet;
char buffer[512]={0};
QString sTmp = GetVersionStr();
sRet.append(sTmp);
sRet.append("Process: ");
GetModuleFileName(NULL, Module_Name, MAX_PATH);
sRet.append(QString::fromWCharArray(Module_Name));
sRet.append("\n");
// If exception occurred.
if (m_pException)
{
EXCEPTION_RECORD & E = *m_pException->ExceptionRecord;
CONTEXT & C = *m_pException->ContextRecord;
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, "Exception Addr: %08X ", (int)E.ExceptionAddress);
sRet.append(buffer);
// If module with E.ExceptionAddress found - save its path and date.
QString module = GetModuleByRetAddr((PBYTE)E.ExceptionAddress, Module_Addr);
if (module.length() > 0)
{
sRet.append(" Module: ");
sRet.append(module);
}
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, "\nException Code: %08X\n", (int)E.ExceptionCode);
sRet.append(buffer);
if (E.ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
{
// Access violation type - Write/Read.
memset(buffer, 0, sizeof(buffer));
sprintf(buffer,"%s Address: %08X\n",
(E.ExceptionInformation[0]) ? "Write" : "Read", (int)E.ExceptionInformation[1]);
sRet.append(buffer);
}
sRet.append("Instruction: ");
for (int i = 0; i < 16; i++)
{
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, " %02X", PBYTE(E.ExceptionAddress)[i]);
sRet.append(buffer);
}
sRet.append("\nRegisters: ");
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, "\nEAX: %08X EBX: %08X ECX: %08X EDX: %08X", (unsigned int)C.Eax,(unsigned int) C.Ebx, (unsigned int)C.Ecx, (unsigned int)C.Edx);
sRet.append(buffer);
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, "\nESI: %08X EDI: %08X ESP: %08X EBP: %08X", (unsigned int)C.Esi, (unsigned int)C.Edi, (unsigned int)C.Esp, (unsigned int)C.Ebp);
sRet.append(buffer);
memset(buffer, 0, sizeof(buffer));
sprintf(buffer, "\nEIP: %08X EFlags: %08X", (unsigned int)C.Eip,(unsigned int) C.EFlags);
sRet.append(buffer);
} //if (pException)
sRet.append("\nCall Stack:");
QString sCallstack = this->GetCallStack(m_pException);
sRet.append(sCallstack);
return sRet;
}
bool CCrashStack::GetHardwareInaformation(QString &graphics_card, QString &sound_deivce)
{
HRESULT hres;
// Initialize COM.
hres = CoInitializeEx(0, COINIT_APARTMENTTHREADED);
if (FAILED(hres))
{
qDebug() << "Failed to initialize COM library. "
<< "Error code = 0x"
<< hex << hres << endl;
return false;
}
// Initialize
hres = CoInitializeSecurity(NULL,
-1,
NULL,
NULL,
RPC_C_AUTHN_LEVEL_DEFAULT,
RPC_C_IMP_LEVEL_IMPERSONATE,
NULL,
EOAC_NONE,
NULL);
if ((hres != RPC_E_TOO_LATE) && FAILED(hres))
{
qDebug() << "Failed to initialize security. "
<< "Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return false;
}
// Obtain the initial locator to Windows Management
// on a particular host computer.
IWbemLocator *pLoc = 0;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *)&pLoc);
if (FAILED(hres))
{
qDebug() << "Failed to create IWbemLocator object. "
<< "Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return false;
}
IWbemServices *pSvc = 0;
// Connect to the root\cimv2 namespace with the
// current user and obtain pointer pSvc
// to make IWbemServices calls.
hres = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"), NULL, NULL, 0, NULL, 0, 0, &pSvc);
if (FAILED(hres))
{
qDebug() << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return false;
}
// Set the IWbemServices proxy so that impersonation
// of the user (client) occurs.
hres = CoSetProxyBlanket(
pSvc, // the proxy to set
RPC_C_AUTHN_WINNT, // authentication service
RPC_C_AUTHZ_NONE, // authorization service
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // authentication level
RPC_C_IMP_LEVEL_IMPERSONATE, // impersonation level
NULL, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
qDebug() << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return false;
}
// Use the IWbemServices pointer to make requests of WMI.
// Make requests here:
IEnumWbemClassObject* pEnumerator_graphics = NULL;
IEnumWbemClassObject* pEnumerator_sound = NULL;
BSTR wql = SysAllocString(L"WQL");
BSTR sql_graphics = SysAllocString(L"SELECT * FROM Win32_VideoController");
BSTR sql_sound = SysAllocString(L"SELECT * FROM Win32_SoundDevice");
HRESULT hres_graphics;
HRESULT hres_sound;
hres_graphics = pSvc->ExecQuery(wql,
sql_graphics,
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator_graphics);
hres_sound = pSvc->ExecQuery(wql,
sql_sound,
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator_sound);
if (FAILED(hres_graphics) || FAILED(hres_sound))
{
qDebug() << "Query for processes failed. "
<< "Error code = 0x"
<< hex << hres_graphics << endl;
qDebug() << "Query for processes failed. "
<< "Error code = 0x"
<< hex << hres_sound << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return "";
}
else
{
IWbemClassObject *pclsObj_graphics;
ULONG uReturnGraphics = 0;
IWbemClassObject *pclsObj_sound;
ULONG uReturnSound = 0;
while (pEnumerator_graphics)
{
hres_graphics = pEnumerator_graphics->Next(WBEM_INFINITE, 1, &pclsObj_graphics, &uReturnGraphics);
if (0 == uReturnGraphics)
{
break;
}
VARIANT description_vtProp;
VARIANT driver_version_vtProp;
VARIANT status_vtProp;
// Get the value of the Name property
hres_graphics = pclsObj_graphics->Get(L"Description", 0, &description_vtProp, 0, 0);
QString description((QChar*) description_vtProp.bstrVal, wcslen(description_vtProp.bstrVal));
hres_graphics = pclsObj_graphics->Get(L"DriverVersion", 0, &driver_version_vtProp, 0, 0);
QString driver_version((QChar*) driver_version_vtProp.bstrVal, wcslen(driver_version_vtProp.bstrVal));
hres_graphics = pclsObj_graphics->Get(L"Status", 0, &status_vtProp, 0, 0);
QString status((QChar*) status_vtProp.bstrVal, wcslen(status_vtProp.bstrVal));
graphics_card.append(description).append(" ").append(driver_version).append(" ").append(status).append(" \n");
VariantClear(&description_vtProp);
VariantClear(&driver_version_vtProp);
VariantClear(&status_vtProp);
}
while (pEnumerator_sound)
{
hres_sound = pEnumerator_sound->Next(WBEM_INFINITE, 1, &pclsObj_sound, &uReturnSound);
if (0 == uReturnSound)
{
break;
}
VARIANT description_vtProp;
VARIANT status_vtProp;
// Get the value of the Name property
hres_sound = pclsObj_sound->Get(L"Description", 0, &description_vtProp, 0, 0);
QString description((QChar*) description_vtProp.bstrVal, wcslen(description_vtProp.bstrVal));
hres_sound = pclsObj_sound->Get(L"Status", 0, &status_vtProp, 0, 0);
QString status((QChar*) status_vtProp.bstrVal, wcslen(status_vtProp.bstrVal));
sound_deivce.append(description).append(" ").append(status).append(" \n");
VariantClear(&description_vtProp);
VariantClear(&status_vtProp);
}
}
// Cleanup
pSvc->Release();
pLoc->Release();
CoUninitialize();
return true;
}
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上面的代码有些啰嗦，同时记录了一些硬件的信息到dump文件中(http://blog.csdn.net/wangshubo1989/article/details/51855895);
如果感觉没用，请自行忽略。
开始使用：
在main.cc文件中：
首先定义一下回调：
#ifdef Q_OS_WIN
long __stdcall callback(_EXCEPTION_POINTERS* excp)
{
CCrashStack crashStack(excp);
QString sCrashInfo = crashStack.GetExceptionInfo();
TCHAR my_documents[MAX_PATH];
SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, my_documents);
QString file_path = QString::fromWCharArray(my_documents);
QDir *folder_path = new QDir;
bool exist = folder_path->exists(file_path.append("\\MyApp"));
if(!exist)
{
folder_path->mkdir(file_path);
}
delete folder_path;
folder_path = nullptr;
QString sFileName = file_path + "\\crash.log";
QFile file(sFileName);
if (file.open(QIODevice::WriteOnly|QIODevice::Truncate))
{
file.write(sCrashInfo.toUtf8());
file.close();
}
return EXCEPTION_EXECUTE_HANDLER;
}
#endif
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最后再main中添加：
#ifdef Q_OS_WIN
SetUnhandledExceptionFilter(callback);
#endif
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关于SetUnhandledExceptionFilter不懂的地方可以参考：
http://blog.csdn.net/wangshubo1989/article/details/51100612