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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "desktopprocesssignaloperation.h"
#include "localprocesslist.h"
#include <utils/winutils.h>
#include <QCoreApplication>
#include <QDir>
#include <QProcess>
#ifdef Q_OS_WIN
#define _WIN32_WINNT 0x0502
#include <windows.h>
#ifndef PROCESS_SUSPEND_RESUME
#define PROCESS_SUSPEND_RESUME 0x0800
#endif // PROCESS_SUSPEND_RESUME
#else // Q_OS_WIN
#include <errno.h>
#include <signal.h>
#endif // else Q_OS_WIN
namespace ProjectExplorer {
void DesktopProcessSignalOperation::killProcess(int pid)
{
killProcessSilently(pid);
emit finished(m_errorMessage);
}
void DesktopProcessSignalOperation::killProcess(const QString &filePath)
{
m_errorMessage.clear();
foreach (const DeviceProcessItem &process, Internal::LocalProcessList::getLocalProcesses()) {
if (process.cmdLine == filePath)
killProcessSilently(process.pid);
}
emit finished(m_errorMessage);
}
void DesktopProcessSignalOperation::interruptProcess(int pid)
{
m_errorMessage.clear();
interruptProcessSilently(pid);
emit finished(m_errorMessage);
}
void DesktopProcessSignalOperation::interruptProcess(const QString &filePath)
{
m_errorMessage.clear();
foreach (const DeviceProcessItem &process, Internal::LocalProcessList::getLocalProcesses()) {
if (process.cmdLine == filePath)
interruptProcessSilently(process.pid);
}
emit finished(m_errorMessage);
}
void DesktopProcessSignalOperation::appendMsgCannotKill(int pid, const QString &why)
{
if (!m_errorMessage.isEmpty())
m_errorMessage += QChar::fromLatin1('\n');
m_errorMessage += tr("Cannot kill process with pid %1: %2").arg(pid).arg(why);
m_errorMessage += QLatin1Char(' ');
}
void DesktopProcessSignalOperation::appendMsgCannotInterrupt(int pid, const QString &why)
{
if (!m_errorMessage.isEmpty())
m_errorMessage += QChar::fromLatin1('\n');
m_errorMessage += tr("Cannot interrupt process with pid %1: %2").arg(pid).arg(why);
m_errorMessage += QLatin1Char(' ');
}
void DesktopProcessSignalOperation::killProcessSilently(int pid)
{
#ifdef Q_OS_WIN
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;
if (const HANDLE handle = OpenProcess(rights, FALSE, pid)) {
if (!TerminateProcess(handle, UINT(-1)))
appendMsgCannotKill(pid, Utils::winErrorMessage(GetLastError()));
CloseHandle(handle);
} else {
appendMsgCannotKill(pid, tr("Cannot open process."));
}
#else
if (pid <= 0)
appendMsgCannotKill(pid, tr("Invalid process id."));
else if (kill(pid, SIGKILL))
appendMsgCannotKill(pid, QString::fromLocal8Bit(strerror(errno)));
#endif // Q_OS_WIN
}
void DesktopProcessSignalOperation::interruptProcessSilently(int pid)
{
#ifdef Q_OS_WIN
enum SpecialInterrupt { NoSpecialInterrupt, Win32Interrupt, Win64Interrupt };
bool is64BitSystem = Utils::is64BitWindowsSystem();
SpecialInterrupt si = NoSpecialInterrupt;
if (is64BitSystem)
si = Utils::is64BitWindowsBinary(m_debuggerCommand) ? Win64Interrupt : Win32Interrupt;
/*
Windows 64 bit has a 32 bit subsystem (WOW64) which makes it possible to run a
32 bit application inside a 64 bit environment.
When GDB is used DebugBreakProcess must be called from the same system (32/64 bit) running
the inferior. If CDB is used we could in theory break wow64 processes,
but the break is actually a wow64 breakpoint. CDB is configured to ignore these
breakpoints, because they also appear on module loading.
Therefore we need helper executables (win(32/64)interrupt.exe) on Windows 64 bit calling
DebugBreakProcess from the correct system.
DebugBreak matrix for windows
Api = UseDebugBreakApi
Win64 = UseWin64InterruptHelper
Win32 = UseWin32InterruptHelper
N/A = This configuration is not possible
| Windows 32bit | Windows 64bit
| QtCreator 32bit | QtCreator 32bit | QtCreator 64bit
| Inferior 32bit | Inferior 32bit | Inferior 64bit | Inferior 32bit | Inferior 64bit
----------|-----------------|-----------------|-----------------|-----------------|----------------
CDB 32bit | Api | Api | N/A | Win32 | N/A
64bit | N/A | Win64 | Win64 | Api | Api
----------|-----------------|-----------------|-----------------|-----------------|----------------
GDB 32bit | Api | Api | N/A | Win32 | N/A
64bit | N/A | N/A | Win64 | N/A | Api
----------|-----------------|-----------------|-----------------|-----------------|----------------
*/
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) {
appendMsgCannotInterrupt(pid, tr("Cannot open process: %1")
+ Utils::winErrorMessage(GetLastError()));
break;
}
bool creatorIs64Bit = Utils::is64BitWindowsBinary(qApp->applicationFilePath());
if (!is64BitSystem
|| si == NoSpecialInterrupt
|| (si == Win64Interrupt && creatorIs64Bit)
|| (si == Win32Interrupt && !creatorIs64Bit)) {
if (!DebugBreakProcess(inferior)) {
appendMsgCannotInterrupt(pid, tr("DebugBreakProcess failed:")
+ QLatin1Char(' ') + Utils::winErrorMessage(GetLastError()));
}
} else if (si == Win32Interrupt || si == Win64Interrupt) {
QString executable = QCoreApplication::applicationDirPath();
executable += si == Win32Interrupt
? QLatin1String("/win32interrupt.exe")
: QLatin1String("/win64interrupt.exe");
if (!QFile::exists(executable)) {
appendMsgCannotInterrupt(pid, tr( "%1 does not exist. If you built Qt Creator "
"yourself, check out http://qt.gitorious.org/"
"qt-creator/binary-artifacts.").
arg(QDir::toNativeSeparators(executable)));
}
switch (QProcess::execute(executable, QStringList(QString::number(pid)))) {
case -2:
appendMsgCannotInterrupt(pid, tr(
"Cannot start %1. Check src\\tools\\win64interrupt\\win64interrupt.c "
"for more information.").arg(QDir::toNativeSeparators(executable)));
break;
case 0:
break;
default:
appendMsgCannotInterrupt(pid, QDir::toNativeSeparators(executable)
+ QLatin1Char(' ') + tr("could not break the process."));
break;
}
}
} while (false);
if (inferior != NULL)
CloseHandle(inferior);
#else
if (pid <= 0)
appendMsgCannotInterrupt(pid, tr("Invalid process id."));
else if (kill(pid, SIGINT))
appendMsgCannotInterrupt(pid, QString::fromLocal8Bit(strerror(errno)));
#endif // Q_OS_WIN
}
} // namespace ProjectExplorer
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