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Diffstat (limited to 'src/corelib/global/minimum-linux.S')
| -rw-r--r-- | src/corelib/global/minimum-linux.S | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/corelib/global/minimum-linux.S b/src/corelib/global/minimum-linux.S new file mode 100644 index 0000000000..6b7fb4f63b --- /dev/null +++ b/src/corelib/global/minimum-linux.S @@ -0,0 +1,106 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Intel Corporation. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "private/qglobal_p.h" + +/* Copied from #include <elf.h>: + */ +#define ELF_NOTE_GNU "GNU" +#define NT_GNU_ABI_TAG 1 +#define ELF_NOTE_OS_LINUX 0 + +#ifdef __arm__ +# define progbits %progbits +# define note %note +#else +# define progbits @progbits +# define note @note +#endif + +/* Add information for the ELF dynamic linker what the minimum Linux version + * required for Qt is. + * + * The .note.ABI-tag note section is defined at + * https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/noteabitag.html + */ + + .section ".note.GNU-stack", "", progbits + .section ".note.ABI-tag", "a", note + .align 4 /* we have 32-bit data */ + +/* * For the format of the note section's contents, see Elf32_Nhdr / Elf64_Nhdr */ + .long .Lnameend-.Lname /* n_namesz */ + .long 16 /* n_descsz(16 bytes, normative) */ + .long NT_GNU_ABI_TAG /* n_type */ + +.Lname: + .asciz ELF_NOTE_GNU +.Lnameend: + +/* Operating systems: */ + .long ELF_NOTE_OS_LINUX + +/* Minimum Linux kernel version: + * We require the following features in Qt (unconditional, no fallback): + * Feature Added in version Macro + * - inotify_init1 before 2.6.12-rc12 + * - futex(2) before 2.6.12-rc12 + * - linkat(2) 2.6.17 O_TMPFILE + * - FUTEX_PRIVATE_FLAG 2.6.22 + * - O_CLOEXEC 2.6.23 + * - eventfd 2.6.23 + * - pipe2 & dup3 2.6.27 + * - accept4 2.6.28 + * - renameat2 3.16 QT_CONFIG(renameat2) + * - getrandom 3.17 QT_CONFIG(getentropy) + */ + +#if QT_CONFIG(getentropy) + .long 3 + .long 17 + .long 0 +#elif QT_CONFIG(renameat2) + .long 3 + .long 16 + .long 0 +#else + .long 2 + .long 6 + .long 28 +#endif |