/****************************************************************************
**
** Copyright (C) 2015 Intel Corporation.
** Contact: http://www.qt.io/licensing/
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** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
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****************************************************************************/

#include "qglobal.h"

#if defined(Q_CC_GNU) && (defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)) && 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
".macro     make_versioned_symbol    plainsym versionedsym\n"
".globl     plainsym\n"
".type      plainsym, @object\n"
".size      plainsym, 1\n"
".symver    plainsym, versionedsym\n"
"plainsym :\n"
".endm\n"

// 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"
"       make_versioned_symbol   " 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