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-rw-r--r--src/corelib/arch/qatomic_s390.h433
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diff --git a/src/corelib/arch/qatomic_s390.h b/src/corelib/arch/qatomic_s390.h
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-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** 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 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
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QATOMIC_S390_H
-#define QATOMIC_S390_H
-
-#include <QtCore/qoldbasicatomic.h>
-
-QT_BEGIN_NAMESPACE
-
-#if 0
-// silence syncqt warnings
-QT_END_NAMESPACE
-QT_END_HEADER
-
-#pragma qt_sync_skip_header_check
-#pragma qt_sync_stop_processing
-#endif
-
-#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
-
-inline bool QBasicAtomicInt::isReferenceCountingNative()
-{ return true; }
-inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
-
-inline bool QBasicAtomicInt::isTestAndSetNative()
-{ return true; }
-inline bool QBasicAtomicInt::isTestAndSetWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
-
-inline bool QBasicAtomicInt::isFetchAndStoreNative()
-{ return true; }
-inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
-
-inline bool QBasicAtomicInt::isFetchAndAddNative()
-{ return true; }
-inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
-{ return true; }
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
-{ return true; }
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
-{ return false; }
-
-#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
-{ return true; }
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
-{ return false; }
-
-#ifdef __GNUC__
-#define __GNU_EXTENSION __extension__
-#else
-#define __GNU_EXTENSION
-#endif
-
-#define __CS_LOOP(ptr, op_val, op_string, pre, post) __GNU_EXTENSION ({ \
- volatile int old_val, new_val; \
- __asm__ __volatile__(pre \
- " l %0,0(%3)\n" \
- "0: lr %1,%0\n" \
- op_string " %1,%4\n" \
- " cs %0,%1,0(%3)\n" \
- " jl 0b\n" \
- post \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (*ptr) \
- : "a" (ptr), "d" (op_val), \
- "m" (*ptr) \
- : "cc", "memory" ); \
- new_val; \
-})
-
-#define __CS_OLD_LOOP(ptr, op_val, op_string, pre, post ) __GNU_EXTENSION ({ \
- volatile int old_val, new_val; \
- __asm__ __volatile__(pre \
- " l %0,0(%3)\n" \
- "0: lr %1,%0\n" \
- op_string " %1,%4\n" \
- " cs %0,%1,0(%3)\n" \
- " jl 0b\n" \
- post \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (*ptr) \
- : "a" (ptr), "d" (op_val), \
- "m" (*ptr) \
- : "cc", "memory" ); \
- old_val; \
-})
-
-#ifdef __s390x__
-#define __CSG_OLD_LOOP(ptr, op_val, op_string, pre, post) __GNU_EXTENSION ({ \
- long old_val, new_val; \
- __asm__ __volatile__(pre \
- " lg %0,0(%3)\n" \
- "0: lgr %1,%0\n" \
- op_string " %1,%4\n" \
- " csg %0,%1,0(%3)\n" \
- " jl 0b\n" \
- post \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (*ptr) \
- : "a" (ptr), "d" (op_val), \
- "m" (*ptr) \
- : "cc", "memory" ); \
- old_val; \
-})
-#endif
-
-inline bool QBasicAtomicInt::ref()
-{
- return __CS_LOOP(&_q_value, 1, "ar", "", "") != 0;
-}
-
-inline bool QBasicAtomicInt::deref()
-{
- return __CS_LOOP(&_q_value, 1, "sr", "", "") != 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
-{
- int retval;
- __asm__ __volatile__(
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
- return retval == 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
-{
- int retval;
- __asm__ __volatile__(
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:\n"
- " bcr 15,0\n"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
- return retval == 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
-{
- int retval;
- __asm__ __volatile__(
- " bcr 15,0\n"
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
- return retval == 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
-{
- return testAndSetAcquire(expectedValue, newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
-{
- return __CS_OLD_LOOP(&_q_value, newValue, "lr", "", "");
-}
-
-inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
-{
- return __CS_OLD_LOOP(&_q_value, newValue, "lr", "", "bcr 15,0\n");
-}
-
-inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
-{
- return __CS_OLD_LOOP(&_q_value, newValue, "lr", "bcr 15,0\n", "");
-}
-
-inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
-{
- return fetchAndStoreAcquire(newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
-{
- return __CS_OLD_LOOP(&_q_value, valueToAdd, "ar", "", "bcr 15,0\n");
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
-{
- int retval;
-
-#ifndef __s390x__
- __asm__ __volatile__(
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#else
- __asm__ __volatile__(
- " lgr %0,%3\n"
- " csg %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#endif
-
- return retval == 0;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
-{
- int retval;
-
-#ifndef __s390x__
- __asm__ __volatile__(
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:\n"
- " bcr 15,0\n"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#else
- __asm__ __volatile__(
- " lgr %0,%3\n"
- " csg %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:\n"
- " bcr 15,0\n"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#endif
-
- return retval == 0;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
-{
- int retval;
-
-#ifndef __s390x__
- __asm__ __volatile__(
- " bcr 15,0\n"
- " lr %0,%3\n"
- " cs %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#else
- __asm__ __volatile__(
- " bcr 15,0\n"
- " lgr %0,%3\n"
- " csg %0,%4,0(%2)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&d" (retval), "=m" (_q_value)
- : "a" (&_q_value), "d" (expectedValue) , "d" (newValue),
- "m" (_q_value) : "cc", "memory" );
-#endif
-
- return retval == 0;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
-{
- return testAndSetAcquire(expectedValue, newValue);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T* QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
-{
-#ifndef __s390x__
- return (T*)__CS_OLD_LOOP(&_q_value, (int)newValue, "lr", "", "");
-#else
- return (T*)__CSG_OLD_LOOP(&_q_value, (long)newValue, "lgr", "", "");
-#endif
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T* QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
-{
-#ifndef __s390x__
- return (T*)__CS_OLD_LOOP(&_q_value, (int)newValue, "lr", "", "bcr 15,0 \n");
-#else
- return (T*)__CSG_OLD_LOOP(&_q_value, (long)newValue, "lgr", "", "bcr 15,0 \n");
-#endif
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T* QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
-{
-#ifndef __s390x__
- return (T*)__CS_OLD_LOOP(&_q_value, (int)newValue, "lr", "bcr 15,0 \n", "");
-#else
- return (T*)__CSG_OLD_LOOP(&_q_value, (long)newValue, "lgr", "bcr 15,0\n", "");
-#endif
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T* QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
-{
- return fetchAndStoreAcquire(newValue);
-}
-
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
-{
- return fetchAndAddOrdered(valueToAdd);
-}
-
-#undef __GNU_EXTENSION
-
-QT_END_NAMESPACE
-
-#endif // QATOMIC_S390_H
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