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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "winutils.h"
#include "debuggerdialogs.h"
#include <QtCore/QDebug>
#include <QtCore/QString>
// Enable Win API of XP SP1 and later
#ifdef Q_OS_WIN
# define _WIN32_WINNT 0x0502
# include <windows.h>
# include <utils/winutils.h>
# if !defined(PROCESS_SUSPEND_RESUME) // Check flag for MinGW
# define PROCESS_SUSPEND_RESUME (0x0800)
# endif // PROCESS_SUSPEND_RESUME
#endif // Q_OS_WIN
#include <tlhelp32.h>
#include <psapi.h>
#include <QtCore/QLibrary>
namespace Debugger {
namespace Internal {
// Resolve QueryFullProcessImageNameW out of kernel32.dll due
// to incomplete MinGW import libs and it not being present
// on Windows XP.
static inline BOOL queryFullProcessImageName(HANDLE h,
DWORD flags,
LPWSTR buffer,
DWORD *size)
{
// Resolve required symbols from the kernel32.dll
typedef BOOL (WINAPI *QueryFullProcessImageNameWProtoType)
(HANDLE, DWORD, LPWSTR, PDWORD);
static QueryFullProcessImageNameWProtoType queryFullProcessImageNameW = 0;
if (!queryFullProcessImageNameW) {
QLibrary kernel32Lib(QLatin1String("kernel32.dll"), 0);
if (kernel32Lib.isLoaded() || kernel32Lib.load())
queryFullProcessImageNameW = (QueryFullProcessImageNameWProtoType)kernel32Lib.resolve("QueryFullProcessImageNameW");
}
if (!queryFullProcessImageNameW)
return FALSE;
// Read out process
return (*queryFullProcessImageNameW)(h, flags, buffer, size);
}
static inline QString imageName(DWORD processId)
{
QString rc;
HANDLE handle = OpenProcess(PROCESS_QUERY_INFORMATION , FALSE, processId);
if (handle == INVALID_HANDLE_VALUE)
return rc;
WCHAR buffer[MAX_PATH];
DWORD bufSize = MAX_PATH;
if (queryFullProcessImageName(handle, 0, buffer, &bufSize))
rc = QString::fromUtf16(reinterpret_cast<const ushort*>(buffer));
CloseHandle(handle);
return rc;
}
QList<ProcData> winProcessList()
{
QList<ProcData> rc;
PROCESSENTRY32 pe;
pe.dwSize = sizeof(PROCESSENTRY32);
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (snapshot == INVALID_HANDLE_VALUE)
return rc;
for (bool hasNext = Process32First(snapshot, &pe); hasNext; hasNext = Process32Next(snapshot, &pe)) {
ProcData procData;
procData.ppid = QString::number(pe.th32ProcessID);
procData.name = QString::fromUtf16(reinterpret_cast<ushort*>(pe.szExeFile));
procData.image = imageName(pe.th32ProcessID);
rc.push_back(procData);
}
CloseHandle(snapshot);
return rc;
}
bool winResumeThread(unsigned long dwThreadId, QString *errorMessage)
{
bool ok = false;
HANDLE handle = NULL;
do {
if (!dwThreadId)
break;
handle = OpenThread(SYNCHRONIZE |THREAD_QUERY_INFORMATION |THREAD_SUSPEND_RESUME,
FALSE, dwThreadId);
if (handle==NULL) {
*errorMessage = QString::fromLatin1("Unable to open thread %1: %2").
arg(dwThreadId).arg(Utils::winErrorMessage(GetLastError()));
break;
}
if (ResumeThread(handle) == DWORD(-1)) {
*errorMessage = QString::fromLatin1("Unable to resume thread %1: %2").
arg(dwThreadId).arg(Utils::winErrorMessage(GetLastError()));
break;
}
ok = true;
} while (false);
if (handle != NULL)
CloseHandle(handle);
return ok;
}
// Open the process and break into it
bool winDebugBreakProcess(unsigned long pid, QString *errorMessage)
{
bool ok = false;
HANDLE inferior = NULL;
do {
const DWORD rights = PROCESS_QUERY_INFORMATION|PROCESS_SET_INFORMATION
|PROCESS_VM_OPERATION|PROCESS_VM_WRITE|PROCESS_VM_READ
|PROCESS_DUP_HANDLE|PROCESS_TERMINATE|PROCESS_CREATE_THREAD|PROCESS_SUSPEND_RESUME ;
inferior = OpenProcess(rights, FALSE, pid);
if (inferior == NULL) {
*errorMessage = QString::fromLatin1("Cannot open process %1: %2").
arg(pid).arg(Utils::winErrorMessage(GetLastError()));
break;
}
if (!DebugBreakProcess(inferior)) {
*errorMessage = QString::fromLatin1("DebugBreakProcess failed: %1").arg(Utils::winErrorMessage(GetLastError()));
break;
}
ok = true;
} while (false);
if (inferior != NULL)
CloseHandle(inferior);
return ok;
}
unsigned long winGetCurrentProcessId()
{
return GetCurrentProcessId();
}
// Helper for normalizing file names:
// Map the device paths in a file name to back to drive letters
// "/Device/HarddiskVolume1/file.cpp" -> "C:/file.cpp"
static bool mapDeviceToDriveLetter(QString *s)
{
enum { bufSize = 512 };
// Retrieve drive letters and get their device names.
// Do not cache as it may change due to removable/network drives.
TCHAR driveLetters[bufSize];
if (!GetLogicalDriveStrings(bufSize-1, driveLetters))
return false;
TCHAR driveName[MAX_PATH];
TCHAR szDrive[3] = TEXT(" :");
for (const TCHAR *driveLetter = driveLetters; *driveLetter; driveLetter++) {
szDrive[0] = *driveLetter; // Look up each device name
if (QueryDosDevice(szDrive, driveName, MAX_PATH)) {
const QString deviceName = QString::fromWCharArray(driveName);
if (s->startsWith(deviceName)) {
s->replace(0, deviceName.size(), QString::fromWCharArray(szDrive));
return true;
}
}
}
return false;
}
// Determine normalized case of a Windows file name (camelcase.cpp -> CamelCase.cpp)
// Restriction: File needs to exists and be non-empty and will be to be opened/mapped.
// This is the MSDN-recommended way of doing that.
QString winNormalizeFileName(const QString &f)
{
HANDLE hFile = CreateFile((const wchar_t*)f.utf16(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if(hFile == INVALID_HANDLE_VALUE)
return f;
// Get the file size. We need a non-empty file to map it.
DWORD dwFileSizeHi = 0;
DWORD dwFileSizeLo = GetFileSize(hFile, &dwFileSizeHi);
if (dwFileSizeLo == 0 && dwFileSizeHi == 0) {
CloseHandle(hFile);
return f;
}
// Create a file mapping object.
HANDLE hFileMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
if (!hFileMap) {
CloseHandle(hFile);
return f;
}
// Create a file mapping to get the file name.
void* pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
if (!pMem) {
CloseHandle(hFileMap);
CloseHandle(hFile);
return f;
}
QString rc;
WCHAR pszFilename[MAX_PATH];
pszFilename[0] = 0;
// Get a file name of the form "/Device/HarddiskVolume1/file.cpp"
if (GetMappedFileName (GetCurrentProcess(), pMem, pszFilename, MAX_PATH)) {
rc = QString::fromWCharArray(pszFilename);
if (!mapDeviceToDriveLetter(&rc))
rc.clear();
}
UnmapViewOfFile(pMem);
CloseHandle(hFileMap);
CloseHandle(hFile);
return rc.isEmpty() ? f : rc;
}
bool isWinProcessBeingDebugged(unsigned long pid)
{
HANDLE processHandle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
if (processHandle == NULL)
return false;
BOOL debugged = FALSE;
CheckRemoteDebuggerPresent(processHandle, &debugged);
CloseHandle(processHandle);
return debugged != FALSE;
}
} // namespace Internal
} // namespace Debugger
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