Linux: Add a crash handler providing a backtrace for debug builds.

Use case: You're working with a debug version of Qt Creator and you're
interested in getting a backtrace displayed as soon as Qt Creator
crashes without searching for the core file, starting your debugger, ...

Once a 'serious signal' (currently SIGILL, SIGFPE, SIGSEGV, SIGBUS,
SIGPIPE) is delivered, a popup displays the following debug information:

 - Qt Creator version (same as in the about dialog)
 - Kernel version (uname -a)
 - GNU/Linux Distribution (/etc/lsb-release)
 - Backtrace (by gdb)

Please note that this crash handler is built and used only in debug mode
on GNU/Linux. It's solely meant as a convenience tool for the developer.

In contrast to the breakpad integration, this crash handler operates
'offline'. There is no network i/o involved.

Change-Id: Idcfb1bf1ad68942615ecfe0dffc0d03154455049
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/tools/qtcreatorcrashhandler/utils.h

@@ -0,0 +1,42 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: http://www.qt-project.org/
+**
+**
+** GNU Lesser General Public License Usage
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**************************************************************************/
+
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <QByteArray>
+#include <QString>
+
+const char APPLICATION_NAME[] = "Qt Creator Crash Handler";
+const char URL_BUGTRACKER[] = "https://bugreports.qt-project.org/";
+
+QByteArray fileContents(const QString &filePath);
+
+#endif // UTILS_H