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/****************************************************************************
**
** Copyright (C) 2015 Intel Corporation.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. 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.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qglobal.h"

#if defined(Q_CC_GNU) && defined(Q_OS_LINUX) && defined(Q_PROCESSOR_X86) && !defined(QT_STATIC)
# define SYM QT_MANGLE_NAMESPACE(qt_version_tag)
# define SSYM QT_STRINGIFY(SYM)

asm(
// ASM macro that makes one ELF versioned symbol qt_version_tag{sep}Qt_{major}.{minor}
// that is an alias to qt_version_tag_{major}_{minor}.
// The {sep} parameter must be @ for all old versions and @@ for the current version.
".macro      make_one_tag    major minor sep\n"
".globl      " SSYM "_\\major\\()_\\minor\n"                        // make the symbol global
SSYM "_\\major\\()_\\minor:\n"                                      // declare it
"    .symver " SSYM "_\\major\\()_\\minor, " SSYM "\\sep\\()Qt_\\major\\().\\minor\n"
".endm\n"

".altmacro\n"
".bss\n"
".set qt_version_major, " QT_STRINGIFY(QT_VERSION) " >> 16\n"       // set qt_version_major
".set qt_version_minor, 0\n"                                        // set qt_version_minor to 0 (it will grow to the current)
".rept (" QT_STRINGIFY(QT_VERSION) " >> 8) & 0xff\n"                // repeat minor version times (0 to N-1)
"    make_one_tag    %qt_version_major, %qt_version_minor, @\n"
"    .set qt_version_minor, (qt_version_minor + 1)\n"
".endr\n"
"    make_one_tag    %qt_version_major, %qt_version_minor, @@\n"    // call the macro for the current version
"    .space  1\n"                                                   // variable is 1 byte, value 0
);

#endif