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@@ -0,0 +1,491 @@
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+From 294010b562c9846bb2bc4ee9c63ff78adc7c1f4f Mon Sep 17 00:00:00 2001
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+From: =?UTF-8?q?Lisandro=20Dami=C3=A1n=20Nicanor=20P=C3=A9rez=20Meyer?=
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+ <perezmeyer@gmail.com>
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+Date: Sat, 15 Mar 2014 15:40:49 -0300
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+Subject: [PATCH] Add qatomic support for AArch64 (aka arm64).
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+
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+Patch by Mark Salter <msalter@redhat.com>
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+licensed under BSD:
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+
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+<https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=735488#195>
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+
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+This patch is known to not be the most correct way
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+to implement them, as it seems to be possible to do it in a faster way,
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+but should work non the less until we can provide something better.
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+
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+Change-Id: Ib392b27dc54691fd4c2ea9896240ad71fb8128cc
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+
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+
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+Upstream-Status: Pending
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+
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+Signed-off-by: Kai Kang <kai.kang@windriver.com>
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+
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+---
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+ src/corelib/arch/aarch64/arch.pri | 4 +
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+ src/corelib/arch/aarch64/qatomic_aarch64.cpp | 70 ++++++
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+ src/corelib/arch/arch.pri | 4 +-
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+ src/corelib/arch/qatomic_aarch64.h | 335 +++++++++++++++++++++++++++
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+ src/corelib/arch/qatomic_arch.h | 2 +
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+ 5 files changed, 414 insertions(+), 1 deletion(-)
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+ create mode 100644 src/corelib/arch/aarch64/arch.pri
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+ create mode 100644 src/corelib/arch/aarch64/qatomic_aarch64.cpp
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+ create mode 100644 src/corelib/arch/qatomic_aarch64.h
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+
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+diff --git a/src/corelib/arch/aarch64/arch.pri b/src/corelib/arch/aarch64/arch.pri
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+new file mode 100644
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+index 0000000..63523d9
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+--- /dev/null
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++++ b/src/corelib/arch/aarch64/arch.pri
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+@@ -0,0 +1,4 @@
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++#
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++# AArch64 architecture
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++#
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++SOURCES += $$QT_ARCH_CPP/qatomic_aarch64.cpp
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+diff --git a/src/corelib/arch/aarch64/qatomic_aarch64.cpp b/src/corelib/arch/aarch64/qatomic_aarch64.cpp
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+new file mode 100644
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+index 0000000..fc851b9
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+--- /dev/null
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++++ b/src/corelib/arch/aarch64/qatomic_aarch64.cpp
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+@@ -0,0 +1,70 @@
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++/****************************************************************************
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++**
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++** Copyright (C) 2012, 2013 Digia Plc and/or its subsidiary(-ies).
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++** Contact: http://www.qt-project.org/legal
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++**
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++** This file is part of the QtCore module of the Qt Toolkit.
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++**
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++** $QT_BEGIN_LICENSE:LGPL$
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++** Commercial License Usage
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++** Licensees holding valid commercial Qt licenses may use this file in
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++** accordance with the commercial license agreement provided with the
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++** Software or, alternatively, in accordance with the terms contained in
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++** a written agreement between you and Digia. For licensing terms and
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++** conditions see http://qt.digia.com/licensing. For further information
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++** use the contact form at http://qt.digia.com/contact-us.
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++**
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++** GNU Lesser General Public License Usage
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++** Alternatively, this file may be used under the terms of the GNU Lesser
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++** General Public License version 2.1 as published by the Free Software
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++** Foundation and appearing in the file LICENSE.LGPL included in the
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++** packaging of this file. Please review the following information to
|
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++** ensure the GNU Lesser General Public License version 2.1 requirements
|
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++** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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++**
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++** In addition, as a special exception, Digia gives you certain additional
|
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++** rights. These rights are described in the Digia Qt LGPL Exception
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++** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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++**
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++** GNU General Public License Usage
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++** Alternatively, this file may be used under the terms of the GNU
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++** General Public License version 3.0 as published by the Free Software
|
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++** Foundation and appearing in the file LICENSE.GPL included in the
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++** packaging of this file. Please review the following information to
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++** ensure the GNU General Public License version 3.0 requirements will be
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++** met: http://www.gnu.org/copyleft/gpl.html.
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++**
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++**
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++** $QT_END_LICENSE$
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++**
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++****************************************************************************/
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++
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++#include <QtCore/qglobal.h>
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++
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++#include <unistd.h>
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++#ifdef _POSIX_PRIORITY_SCHEDULING
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++# include <sched.h>
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++#endif
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++#include <time.h>
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++
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++QT_BEGIN_NAMESPACE
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++
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++QT_USE_NAMESPACE
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++
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++Q_CORE_EXPORT void qt_atomic_yield(int *count)
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++{
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++#ifdef _POSIX_PRIORITY_SCHEDULING
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++ if ((*count)++ < 50) {
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++ sched_yield();
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++ } else
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++#endif
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++ {
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++ struct timespec tm;
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++ tm.tv_sec = 0;
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++ tm.tv_nsec = 2000001;
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++ nanosleep(&tm, NULL);
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++ *count = 0;
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++ }
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++}
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++
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++QT_END_NAMESPACE
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+diff --git a/src/corelib/arch/arch.pri b/src/corelib/arch/arch.pri
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+index cd23e5e..f50fca7 100644
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+--- a/src/corelib/arch/arch.pri
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++++ b/src/corelib/arch/arch.pri
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+@@ -31,7 +31,9 @@ integrity:HEADERS += arch/qatomic_integrity.h
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+ arch/qatomic_s390.h \
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+ arch/qatomic_x86_64.h \
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+ arch/qatomic_sh.h \
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+- arch/qatomic_sh4a.h
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++ arch/qatomic_sh4a.h \
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++ arch/qatomic_aarch64.h \
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++
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+
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+ QT_ARCH_CPP = $$QT_SOURCE_TREE/src/corelib/arch/$$QT_ARCH
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+ DEPENDPATH += $$QT_ARCH_CPP
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+diff --git a/src/corelib/arch/qatomic_aarch64.h b/src/corelib/arch/qatomic_aarch64.h
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+new file mode 100644
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+index 0000000..de61ca8
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+--- /dev/null
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++++ b/src/corelib/arch/qatomic_aarch64.h
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+@@ -0,0 +1,335 @@
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++/****************************************************************************
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++**
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++** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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++** Contact: http://www.qt-project.org/legal
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++**
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++** This file is part of the QtCore module of the Qt Toolkit.
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++**
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++** $QT_BEGIN_LICENSE:LGPL$
|
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|
++** 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://qt.digia.com/licensing. For further information
|
|
|
++** use the contact form at http://qt.digia.com/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 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, 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.
|
|
|
++**
|
|
|
++** GNU General Public License Usage
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|
++** Alternatively, this file may be used under the terms of the GNU
|
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|
++** General Public License version 3.0 as published by the Free Software
|
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|
++** Foundation and appearing in the file LICENSE.GPL included in the
|
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|
++** packaging of this file. Please review the following information to
|
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++** ensure the GNU General Public License version 3.0 requirements will be
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++** met: http://www.gnu.org/copyleft/gpl.html.
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++**
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++**
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++** $QT_END_LICENSE$
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++**
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++****************************************************************************/
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++
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++#ifndef QATOMIC_AARCH64_H
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++#define QATOMIC_AARCH64_H
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++
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++QT_BEGIN_HEADER
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++
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++QT_BEGIN_NAMESPACE
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++
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++#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
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++
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++inline bool QBasicAtomicInt::isReferenceCountingNative()
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++{ return true; }
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++inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
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++
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++inline bool QBasicAtomicInt::isTestAndSetNative()
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++{ return true; }
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++inline bool QBasicAtomicInt::isTestAndSetWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
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++
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++inline bool QBasicAtomicInt::isFetchAndStoreNative()
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++{ return true; }
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++inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
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++
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++inline bool QBasicAtomicInt::isFetchAndAddNative()
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++{ return true; }
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++inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
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++{ return true; }
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
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++{ return true; }
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
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++{ return false; }
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++
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++#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
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++{ return true; }
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
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++{ return false; }
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++
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++#ifndef Q_DATA_MEMORY_BARRIER
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++# define Q_DATA_MEMORY_BARRIER asm volatile("dmb sy\n":::"memory")
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++#endif
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++#ifndef Q_COMPILER_MEMORY_BARRIER
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++# define Q_COMPILER_MEMORY_BARRIER asm volatile("":::"memory")
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++#endif
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++
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++inline bool QBasicAtomicInt::ref()
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++{
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++ int newValue;
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++
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++ Q_COMPILER_MEMORY_BARRIER;
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++ newValue = __atomic_add_fetch(&_q_value, 1, __ATOMIC_ACQ_REL);
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++ Q_COMPILER_MEMORY_BARRIER;
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++
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++ return newValue != 0;
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++}
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++
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++inline bool QBasicAtomicInt::deref()
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++{
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++ int newValue;
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++
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++ Q_COMPILER_MEMORY_BARRIER;
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++ newValue = __atomic_sub_fetch(&_q_value, 1, __ATOMIC_ACQ_REL);
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++ Q_COMPILER_MEMORY_BARRIER;
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++
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++ return newValue != 0;
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++}
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++
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++inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
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++{
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++ bool val;
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++
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_compare_exchange_n (&_q_value, &expectedValue, newValue,
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++ false, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
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++{
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++ int val;
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_exchange_n(&_q_value, newValue, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
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++{
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++ int val;
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_fetch_add(&_q_value, valueToAdd, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
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++{
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++ bool val;
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_compare_exchange_n (&_q_value, &expectedValue, newValue,
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++ false, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
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++{
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++ T *val;
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_exchange_n(&_q_value, newValue, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++template <typename T>
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++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
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++{
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++ T *val;
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++ Q_COMPILER_MEMORY_BARRIER;
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++ val = __atomic_fetch_add(&_q_value, valueToAdd, __ATOMIC_RELAXED);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return val;
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++}
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++
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++inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
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++{
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++ bool returnValue = testAndSetRelaxed(expectedValue, newValue);
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++ Q_DATA_MEMORY_BARRIER;
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++ return returnValue;
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++}
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++
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++inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
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++{
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++ Q_DATA_MEMORY_BARRIER;
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++ return testAndSetRelaxed(expectedValue, newValue);
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++}
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++
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++inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
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++{
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++ Q_DATA_MEMORY_BARRIER;
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++ bool returnValue = testAndSetRelaxed(expectedValue, newValue);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return returnValue;
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++}
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++
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++inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
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++{
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++ int returnValue = fetchAndStoreRelaxed(newValue);
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++ Q_DATA_MEMORY_BARRIER;
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++ return returnValue;
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++}
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++
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++inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
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++{
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++ Q_DATA_MEMORY_BARRIER;
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++ return fetchAndStoreRelaxed(newValue);
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++}
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++
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++inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
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++{
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++ Q_DATA_MEMORY_BARRIER;
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++ int returnValue = fetchAndStoreRelaxed(newValue);
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++ Q_COMPILER_MEMORY_BARRIER;
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++ return returnValue;
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++}
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++
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++inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
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++{
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++ int returnValue = fetchAndAddRelaxed(valueToAdd);
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++ Q_DATA_MEMORY_BARRIER;
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|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return fetchAndAddRelaxed(valueToAdd);
|
|
|
++}
|
|
|
++
|
|
|
++inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ int returnValue = fetchAndAddRelaxed(valueToAdd);
|
|
|
++ Q_COMPILER_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
|
|
|
++{
|
|
|
++ bool returnValue = testAndSetRelaxed(expectedValue, newValue);
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return testAndSetRelaxed(expectedValue, newValue);
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ bool returnValue = testAndSetAcquire(expectedValue, newValue);
|
|
|
++ Q_COMPILER_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
|
|
|
++{
|
|
|
++ T *returnValue = fetchAndStoreRelaxed(newValue);
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return fetchAndStoreRelaxed(newValue);
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ T *returnValue = fetchAndStoreRelaxed(newValue);
|
|
|
++ Q_COMPILER_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
|
|
|
++{
|
|
|
++ T *returnValue = fetchAndAddRelaxed(valueToAdd);
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ return fetchAndAddRelaxed(valueToAdd);
|
|
|
++}
|
|
|
++
|
|
|
++template <typename T>
|
|
|
++Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
|
|
|
++{
|
|
|
++ Q_DATA_MEMORY_BARRIER;
|
|
|
++ T *returnValue = fetchAndAddRelaxed(valueToAdd);
|
|
|
++ Q_COMPILER_MEMORY_BARRIER;
|
|
|
++ return returnValue;
|
|
|
++}
|
|
|
++
|
|
|
++#undef Q_DATA_MEMORY_BARRIER
|
|
|
++#undef Q_COMPILER_MEMORY_BARRIER
|
|
|
++
|
|
|
++QT_END_NAMESPACE
|
|
|
++
|
|
|
++QT_END_HEADER
|
|
|
++
|
|
|
++#endif // QATOMIC_AARCH64_H
|
|
|
+diff --git a/src/corelib/arch/qatomic_arch.h b/src/corelib/arch/qatomic_arch.h
|
|
|
+index 141726c..3e96926 100644
|
|
|
+--- a/src/corelib/arch/qatomic_arch.h
|
|
|
++++ b/src/corelib/arch/qatomic_arch.h
|
|
|
+@@ -94,6 +94,8 @@ QT_BEGIN_HEADER
|
|
|
+ # include "QtCore/qatomic_sh4a.h"
|
|
|
+ #elif defined(QT_ARCH_NACL)
|
|
|
+ # include "QtCore/qatomic_generic.h"
|
|
|
++#elif defined(QT_ARCH_AARCH64)
|
|
|
++# include "QtCore/qatomic_aarch64.h"
|
|
|
+ #else
|
|
|
+ # error "Qt has not been ported to this architecture"
|
|
|
+ #endif
|
|
|
+--
|
|
|
+2.1.0
|
|
|
+
|