a890337433
On 32-bit arm platform, qint64 gets aligned differently than on 32-bit x86. First difference between the platforms on QFilePrivate member offset happens in QFileDevicePrivate::cachedSize: - On 32-bit x86 it's offset is 148 (4-aligned) - On 32-bit arm it's offset is 152 (8-aligned) and offsets of all the remaining members are +4 compared to x86 - On 64-bit architectures the offsets are the same Change-Id: If110da27ea08504e78b167c0a21599420eaa9630 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
155 lines
4.6 KiB
C++
155 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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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 The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/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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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company 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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****************************************************************************/
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#include <QtTest>
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//
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// Note:
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//
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// When this test here fails and the change leading to the failure
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// intentionally changed a private class, adjust the test here and bump
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// the TypeInformationVersion field in src/corelib/global/qhooks.cpp
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// in the same commit as the modification to the private class.
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//
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// Don't do this at home. This is test code, not production.
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#define protected public
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#define private public
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#include <private/qdatetime_p.h>
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#include <private/qfile_p.h>
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#include <private/qfileinfo_p.h>
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#include <private/qobject_p.h>
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#include <qobject.h>
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#if defined(Q_CC_GNU) || defined(Q_CC_MSVC)
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#define RUN_MEMBER_OFFSET_TEST 1
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#else
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#define RUN_MEMBER_OFFSET_TEST 0
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#endif
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#if RUN_MEMBER_OFFSET_TEST
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template <typename T, typename K>
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size_t pmm_to_offsetof(T K:: *pmm)
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{
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#ifdef Q_CC_MSVC
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// Even on 64 bit MSVC uses 4 byte offsets.
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quint32 ret;
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#else
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size_t ret;
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#endif
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Q_STATIC_ASSERT(sizeof(ret) == sizeof(pmm));
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memcpy(&ret, &pmm, sizeof(ret));
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return ret;
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}
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#endif
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class tst_toolsupport : public QObject
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{
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Q_OBJECT
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private slots:
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void offsets();
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void offsets_data();
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};
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void tst_toolsupport::offsets()
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{
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QFETCH(size_t, actual);
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QFETCH(int, expected32);
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QFETCH(int, expected64);
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size_t expect = sizeof(void *) == 4 ? expected32 : expected64;
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QCOMPARE(actual, expect);
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}
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void tst_toolsupport::offsets_data()
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{
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QTest::addColumn<size_t>("actual");
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QTest::addColumn<int>("expected32");
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QTest::addColumn<int>("expected64");
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{
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QTestData &data = QTest::newRow("sizeof(QObjectData)")
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<< sizeof(QObjectData);
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data << 28 << 48; // vptr + 3 ptr + 2 int + ptr
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}
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#if RUN_MEMBER_OFFSET_TEST
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{
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QTestData &data = QTest::newRow("QObjectPrivate::extraData")
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<< pmm_to_offsetof(&QObjectPrivate::extraData);
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data << 28 << 48; // sizeof(QObjectData)
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}
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{
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QTestData &data = QTest::newRow("QFileInfoPrivate::fileEntry")
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<< pmm_to_offsetof(&QFileInfoPrivate::fileEntry);
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data << 4 << 8;
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}
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{
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QTestData &data = QTest::newRow("QFileSystemEntry::filePath")
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<< pmm_to_offsetof(&QFileSystemEntry::m_filePath);
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data << 0 << 0;
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}
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#ifdef Q_OS_LINUX
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{
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QTestData &data = QTest::newRow("QFilePrivate::fileName")
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<< pmm_to_offsetof(&QFilePrivate::fileName);
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#ifdef Q_PROCESSOR_X86
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// x86 32-bit has weird alignment rules. Refer to QtPrivate::AlignOf in
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// qglobal.h for more details.
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data << 168 << 248;
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#else
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data << 172 << 248;
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#endif
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}
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#endif
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{
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QTest::newRow("QDateTimePrivate::m_msecs")
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<< pmm_to_offsetof(&QDateTimePrivate::m_msecs) << 0 << 0;
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QTest::newRow("QDateTimePrivate::m_status")
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<< pmm_to_offsetof(&QDateTimePrivate::m_status) << 8 << 8;
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QTest::newRow("QDateTimePrivate::m_offsetFromUtc")
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<< pmm_to_offsetof(&QDateTimePrivate::m_offsetFromUtc) << 12 << 12;
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QTest::newRow("QDateTimePrivate::m_timeZone")
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<< pmm_to_offsetof(&QDateTimePrivate::m_timeZone) << 20 << 24;
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}
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#endif // RUN_MEMBER_OFFSET_TEST
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}
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QTEST_APPLESS_MAIN(tst_toolsupport);
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#include "tst_toolsupport.moc"
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