1 files changed, 0 insertions, 108 deletions
diff --git a/src/qml/compiler/qv4compilationunitmapper_unix.cpp b/src/qml/compiler/qv4compilationunitmapper_unix.cpp
deleted file mode 100644
index 6768bc9596..0000000000
--- a/src/qml/compiler/qv4compilationunitmapper_unix.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml 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 "qv4compilationunitmapper_p.h"
-
-#include <sys/mman.h>
-#include <functional>
-#include <private/qcore_unix_p.h>
-#include <QScopeGuard>
-#include <QDateTime>
-
-#include "qv4compileddata_p.h"
-
-QT_BEGIN_NAMESPACE
-
-using namespace QV4;
-
-CompiledData::Unit *CompilationUnitMapper::open(const QString &cacheFileName, const QDateTime &sourceTimeStamp, QString *errorString)
-{
-    close();
-
-    int fd = qt_safe_open(QFile::encodeName(cacheFileName).constData(), O_RDONLY);
-    if (fd == -1) {
-        *errorString = qt_error_string(errno);
-        return nullptr;
-    }
-
-    auto cleanup = qScopeGuard([fd]{
-       qt_safe_close(fd) ;
-    });
-
-    CompiledData::Unit header;
-    qint64 bytesRead = qt_safe_read(fd, reinterpret_cast<char *>(&header), sizeof(header));
-
-    if (bytesRead != sizeof(header)) {
-        *errorString = QStringLiteral("File too small for the header fields");
-        return nullptr;
-    }
-
-    if (!header.verifyHeader(sourceTimeStamp, errorString))
-        return nullptr;
-
-    // Data structure and qt version matched, so now we can access the rest of the file safely.
-
-    length = static_cast<size_t>(lseek(fd, 0, SEEK_END));
-
-    void *ptr = mmap(nullptr, length, PROT_READ, MAP_SHARED, fd, /*offset*/0);
-    if (ptr == MAP_FAILED) {
-        *errorString = qt_error_string(errno);
-        return nullptr;
-    }
-    dataPtr = ptr;
-
-    return reinterpret_cast<CompiledData::Unit*>(dataPtr);
-}
-
-void CompilationUnitMapper::close()
-{
-    // Do not unmap the data here.
-    if (dataPtr != nullptr) {
-        // Do not unmap cache files that are built with the StaticData flag. That's the majority of
-        // them and it's necessary to benefit from the QString literal optimization. There might
-        // still be QString instances around that point into that memory area. The memory is backed
-        // on the disk, so the kernel is free to release the pages and all that remains is the
-        // address space allocation.
-        if (!(reinterpret_cast<CompiledData::Unit*>(dataPtr)->flags & CompiledData::Unit::StaticData))
-            munmap(dataPtr, length);
-    }
-    dataPtr = nullptr;
-}
-
-QT_END_NAMESPACE