Merge branch 'necessaryBCPatches' into 4.6

10 files changed, 876 insertions, 119 deletions

diff --git a/.gitignore b/.gitignore
index feb1ea4..33c9b7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -191,6 +191,7 @@ plugin_commonU.def
 *.qtplugin
 *.sis
 *.sisx
+*.lst
 
 # Generated by abldfast.bat from devtools.
 .abldsteps.*
diff --git a/src/corelib/arch/armv6/qatomic_generic_armv6.cpp b/src/corelib/arch/armv6/qatomic_generic_armv6.cpp
new file mode 100644
index 0000000..3078662
--- /dev/null
+++ b/src/corelib/arch/armv6/qatomic_generic_armv6.cpp
@@ -0,0 +1,260 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+** This file implements the generic atomics interface using ARMv6 assembly
+** instructions. It is more efficent than the inline versions when Qt is
+** built for the THUMB instruction set, as the required instructions are
+** only available in ARM state.
+****************************************************************************/
+
+#include <QtCore/qglobal.h>
+
+#ifdef QT_HAVE_ARMV6
+
+QT_BEGIN_NAMESPACE
+
+QT_USE_NAMESPACE
+
+#ifdef Q_CC_RVCT
+#pragma push
+#pragma arm
+Q_CORE_EXPORT asm
+bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue)
+{
+    CODE32
+    //R0 = _q_value
+    //R1 = expectedValue
+    //R2 = newValue
+retry_testAndSetOrdered
+    LDREX    r3,[r0]        //r3 = *_q_value
+    EORS     r3,r3,r1       //if (r3 == expectedValue) {
+    STREXEQ  r3,r2,[r0]     //*_q_value = newvalue, r3 = error
+    TEQEQ    r3,#1          //if error
+    BEQ      retry_testAndSetOrdered          //then goto retry }
+    RSBS     r0,r3,#1       //return (r3 == 0)
+    MOVCC    r0,#0
+    BX       r14
+}
+
+Q_CORE_EXPORT asm
+int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue)
+{
+    CODE32
+//R0 = _q_value
+//R1 = newValue
+retry_fetchAndStoreOrdered
+    LDREX    r3,[r0]        //r3 = *_q_value
+    STREX    r2,r1,[r0]     //*_q_value = newValue, r2 = error
+    TEQ      r2,#0          //if error
+    BNE      retry_fetchAndStoreOrdered          //then goto retry
+    MOV      r0,r3          //return r3
+    BX       r14
+}
+
+Q_CORE_EXPORT asm
+int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd)
+{
+    CODE32
+    //R0 = _q_value
+    //R1 = valueToAdd
+    STMDB    sp!,{r12,lr}
+retry_fetchAndAddOrdered
+    LDREX    r2,[r0]        //r2 = *_q_value
+    ADD      r3,r2,r1       //r3 = r2 + r1
+    STREX    r12,r3,[r0]    //*_q_value = r3, r12 = error
+    TEQ      r12,#0         //if error
+    BNE      retry_fetchAndAddOrdered          //then retry
+    MOV      r0,r2          //return r2
+    LDMIA    sp!,{r12,pc}
+}
+
+Q_CORE_EXPORT asm
+bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value,
+                                           void *expectedValue,
+                                           void *newValue)
+{
+    CODE32
+    //R0 = _q_value
+    //R1 = expectedValue
+    //R2 = newValue
+retryPointer_testAndSetOrdered
+    LDREX    r3,[r0]        //r3 = *_q_value
+    EORS     r3,r3,r1       //if (r3 == expectedValue) {
+    STREXEQ  r3,r2,[r0]     //*_q_value = newvalue, r3 = error
+    TEQEQ    r3,#1          //if error
+    BEQ      retryPointer_testAndSetOrdered          //then goto retry }
+    RSBS     r0,r3,#1       //return (r3 == 0)
+    MOVCC    r0,#0
+    BX       r14
+}
+
+Q_CORE_EXPORT asm
+void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue)
+{
+    CODE32
+    //R0 = _q_value
+    //R1 = newValue
+retryPointer_fetchAndStoreOrdered
+    LDREX    r3,[r0]        //r3 = *_q_value
+    STREX    r2,r1,[r0]     //*_q_value = newValue, r2 = error
+    TEQ      r2,#0          //if error
+    BNE      retryPointer_fetchAndStoreOrdered          //then goto retry
+    MOV      r0,r3          //return r3
+    BX       r14
+}
+
+Q_CORE_EXPORT asm
+void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd)
+{
+    CODE32
+    //R0 = _q_value
+    //R1 = valueToAdd
+    STMDB    sp!,{r12,lr}
+retryPointer_fetchAndAddOrdered
+    LDREX    r2,[r0]        //r2 = *_q_value
+    ADD      r3,r2,r1       //r3 = r2 + r1
+    STREX    r12,r3,[r0]    //*_q_value = r3, r12 = error
+    TEQ      r12,#0         //if error
+    BNE      retryPointer_fetchAndAddOrdered          //then retry
+    MOV      r0,r2          //return r2
+    LDMIA    sp!,{r12,pc}
+}
+
+#pragma pop
+#elif defined (Q_CC_GCCE)
+Q_CORE_EXPORT __declspec( naked )
+bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue)
+{
+    //R0 = _q_value
+    //R1 = expectedValue
+    //R2 = newValue
+    asm("retry_testAndSetOrdered:");
+    asm("    LDREX    r3,[r0]");        //r3 = *_q_value
+    asm("    EORS     r3,r3,r1");       //if (r3 == expectedValue) {
+    asm("    STREXEQ  r3,r2,[r0]");     //*_q_value = newvalue, r3 = error
+    asm("    TEQEQ    r3,#1");          //if error
+    asm("    BEQ      retry_testAndSetOrdered");          //then goto retry }
+    asm("    RSBS     r0,r3,#1");       //return (r3 == 0)
+    asm("    MOVCC    r0,#0");
+    asm("    BX       r14");
+}
+
+Q_CORE_EXPORT __declspec( naked )
+int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue)
+{
+//R0 = _q_value
+//R1 = newValue
+    asm("retry_fetchAndStoreOrdered:");
+    asm("    LDREX    r3,[r0]");        //r3 = *_q_value
+    asm("    STREX    r2,r1,[r0]");     //*_q_value = newValue, r2 = error
+    asm("    TEQ      r2,#0");          //if error
+    asm("    BNE      retry_fetchAndStoreOrdered");          //then goto retry
+    asm("    MOV      r0,r3");          //return r3
+    asm("    BX       r14");
+}
+
+Q_CORE_EXPORT __declspec( naked )
+int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd)
+{
+    //R0 = _q_value
+    //R1 = valueToAdd
+    asm("    STMDB    sp!,{r12,lr}");
+    asm("retry_fetchAndAddOrdered:");
+    asm("    LDREX    r2,[r0]");        //r2 = *_q_value
+    asm("    ADD      r3,r2,r1 ");      //r3 = r2 + r1
+    asm("    STREX    r12,r3,[r0]");    //*_q_value = r3, r12 = error
+    asm("    TEQ      r12,#0");         //if error
+    asm("    BNE      retry_fetchAndAddOrdered");          //then retry
+    asm("    MOV      r0,r2");          //return r2
+    asm("    LDMIA    sp!,{r12,pc}");
+}
+
+Q_CORE_EXPORT __declspec( naked )
+bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value,
+                                           void *expectedValue,
+                                           void *newValue)
+{
+    //R0 = _q_value
+    //R1 = expectedValue
+    //R2 = newValue
+    asm("retryPointer_testAndSetOrdered:");
+    asm("    LDREX    r3,[r0]");        //r3 = *_q_value
+    asm("    EORS     r3,r3,r1");       //if (r3 == expectedValue) {
+    asm("    STREXEQ  r3,r2,[r0]");     //*_q_value = newvalue, r3 = error
+    asm("    TEQEQ    r3,#1");          //if error
+    asm("    BEQ      retryPointer_testAndSetOrdered");          //then goto retry }
+    asm("    RSBS     r0,r3,#1");       //return (r3 == 0)
+    asm("    MOVCC    r0,#0");
+    asm("    BX       r14");
+}
+
+Q_CORE_EXPORT __declspec( naked )
+void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue)
+{
+    //R0 = _q_value
+    //R1 = newValue
+    asm("retryPointer_fetchAndStoreOrdered:");
+    asm("    LDREX    r3,[r0]");        //r3 = *_q_value
+    asm("    STREX    r2,r1,[r0]");     //*_q_value = newValue, r2 = error
+    asm("    TEQ      r2,#0");          //if error
+    asm("    BNE      retryPointer_fetchAndStoreOrdered");          //then goto retry
+    asm("    MOV      r0,r3");          //return r3
+    asm("    BX       r14");
+}
+
+Q_CORE_EXPORT __declspec( naked )
+void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd)
+{
+    //R0 = _q_value
+    //R1 = valueToAdd
+    asm("    STMDB    sp!,{r12,lr}");
+    asm("retryPointer_fetchAndAddOrdered:");
+    asm("    LDREX    r2,[r0]");        //r2 = *_q_value
+    asm("    ADD      r3,r2,r1");       //r3 = r2 + r1
+    asm("    STREX    r12,r3,[r0]");    //*_q_value = r3, r12 = error
+    asm("    TEQ      r12,#0");         //if error
+    asm("    BNE      retryPointer_fetchAndAddOrdered");          //then retry
+    asm("    MOV      r0,r2");          //return r2
+    asm("    LDMIA    sp!,{r12,pc}");
+}
+#else
+#error unknown arm compiler
+#endif
+QT_END_NAMESPACE
+#endif
diff --git a/src/corelib/arch/qatomic_armv6.h b/src/corelib/arch/qatomic_armv6.h
index 6862638..1e9f0c4 100644
--- a/src/corelib/arch/qatomic_armv6.h
+++ b/src/corelib/arch/qatomic_armv6.h
@@ -45,7 +45,6 @@
 QT_BEGIN_HEADER
 
 QT_BEGIN_NAMESPACE
-
 #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
 
 inline bool QBasicAtomicInt::isReferenceCountingNative()
@@ -101,6 +100,8 @@ template <typename T>
 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
 { return false; }
 
+#ifndef Q_CC_RVCT
+
 inline bool QBasicAtomicInt::ref()
 {
     register int newValue;
@@ -155,21 +156,6 @@ inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
     return result == 0;
 }
 
-inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
-inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
-inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
 inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
 {
     register int originalValue;
@@ -188,21 +174,6 @@ inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
     return originalValue;
 }
 
-inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
 inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
 {
     register int originalValue;
@@ -224,21 +195,6 @@ inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
     return originalValue;
 }
 
-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);
-}
-
 template <typename T>
 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
 {
@@ -259,24 +215,6 @@ Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValu
 }
 
 template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
-{
-    return testAndSetOrdered(expectedValue, newValue);
-}
-
-template <typename T>
 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
 {
     register T *originalValue;
@@ -296,24 +234,6 @@ Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
 }
 
 template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
-{
-    return fetchAndStoreOrdered(newValue);
-}
-
-template <typename T>
 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
 {
     register T *originalValue;
@@ -335,6 +255,226 @@ Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueTo
     return originalValue;
 }
 
+#else
+// This is Q_CC_RVCT
+
+// RVCT inline assembly documentation:
+// http://www.keil.com/support/man/docs/armcc/armcc_chdcffdb.htm
+// RVCT embedded assembly documentation:
+// http://www.keil.com/support/man/docs/armcc/armcc_chddbeib.htm
+
+// save our pragma state and switch to ARM mode
+#pragma push
+#pragma arm
+
+inline bool QBasicAtomicInt::ref()
+{
+    register int newValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   newValue, [&_q_value]
+        add     newValue, newValue, #1
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return newValue != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    register int newValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   newValue, [&_q_value]
+        sub     newValue, newValue, #1
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return newValue != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    register int result;
+    retry:
+    __asm {
+        ldrex   result, [&_q_value]
+        eors    result, result, expectedValue
+        strexeq result, newValue, [&_q_value]
+        teqeq   result, #1
+        beq     retry
+    }
+    return result == 0;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    register int originalValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   originalValue, [&_q_value]
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return originalValue;
+}
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    register int originalValue;
+    register int newValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   originalValue, [&_q_value]
+        add     newValue, originalValue, valueToAdd
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    register T *result;
+    retry:
+    __asm {
+        ldrex   result, [&_q_value]
+        eors    result, result, expectedValue
+        strexeq result, newValue, [&_q_value]
+        teqeq   result, #1
+        beq     retry
+    }
+    return result == 0;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    register T *originalValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   originalValue, [&_q_value]
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return originalValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    register T *originalValue;
+    register T *newValue;
+    register int result;
+    retry:
+    __asm {
+        ldrex   originalValue, [&_q_value]
+        add     newValue, originalValue, valueToAdd * sizeof(T)
+        strex   result, newValue, [&_q_value]
+        teq     result, #0
+        bne     retry
+    }
+    return originalValue;
+}
+
+// go back to the previous pragma state (probably Thumb mode)
+#pragma pop
+#endif
+
+// common code
+
+inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
+{
+    return fetchAndStoreOrdered(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);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
 template <typename T>
 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
 {
diff --git a/src/corelib/arch/qatomic_symbian.h b/src/corelib/arch/qatomic_symbian.h
index 3721aca..92f6ef9 100644
--- a/src/corelib/arch/qatomic_symbian.h
+++ b/src/corelib/arch/qatomic_symbian.h
@@ -42,12 +42,8 @@
 #ifndef QATOMIC_SYMBIAN_H
 #define QATOMIC_SYMBIAN_H
 
-#if defined(Q_CC_RVCT)
-#  define QT_NO_ARM_EABI
-#  include <QtCore/qatomic_arm.h>
-#elif defined(Q_CC_NOKIAX86) || defined(Q_CC_GCCE)
-#  include <QtCore/qatomic_generic.h>
-#endif
+#include <qglobal.h>
+#include <e32std.h>
 
 QT_BEGIN_HEADER
 
@@ -55,7 +51,232 @@ QT_BEGIN_NAMESPACE
 
 QT_MODULE(Core)
 
-// Empty, but needed to avoid warnings
+#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE
+
+inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE
+
+inline bool QBasicAtomicInt::isTestAndSetWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE
+
+inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE
+
+inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_SOMETIMES_NATIVE
+
+Q_CORE_EXPORT bool QBasicAtomicPointer_isTestAndSetNative();
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
+{ return QBasicAtomicPointer_isTestAndSetNative(); }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_SOMETIMES_NATIVE
+
+Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndStoreNative();
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
+{ return QBasicAtomicPointer_isFetchAndStoreNative(); }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_SOMETIMES_NATIVE
+
+Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndAddNative();
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
+{ return QBasicAtomicPointer_isFetchAndAddNative(); }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
+{ return false; }
+
+Q_CORE_EXPORT bool QBasicAtomicInt_testAndSetOrdered(volatile int *, int, int);
+Q_CORE_EXPORT int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *, int);
+Q_CORE_EXPORT int QBasicAtomicInt_fetchAndAddOrdered(volatile int *, int);
+
+Q_CORE_EXPORT bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *, void *, void *);
+Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *, void *);
+Q_CORE_EXPORT void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *, qptrdiff);
+
+// Reference counting
+
+//LockedInc and LockedDec are machine coded for ARMv6 (and future proof)
+inline bool QBasicAtomicInt::ref()
+{
+    int original = User::LockedInc((TInt&)_q_value);
+    return original != -1;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    int original = User::LockedDec((TInt&)_q_value);
+    return original != 1;
+}
+
+// Test and set for integers
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    return QBasicAtomicInt_testAndSetOrdered(&_q_value, expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+// Fetch and store for integers
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    return QBasicAtomicInt_fetchAndStoreOrdered(&_q_value, newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+// Fetch and add for integers
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    return QBasicAtomicInt_fetchAndAddOrdered(&_q_value, valueToAdd);
+}
+
+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);
+}
+
+// Test and set for pointers
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    union { T * volatile * typed; void * volatile * voidp; } pointer;
+    pointer.typed = &_q_value;
+    return QBasicAtomicPointer_testAndSetOrdered(pointer.voidp, expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+// Fetch and store for pointers
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    union { T * volatile * typed; void * volatile * voidp; } pointer;
+    union { T *typed; void *voidp; } returnValue;
+    pointer.typed = &_q_value;
+    returnValue.voidp = QBasicAtomicPointer_fetchAndStoreOrdered(pointer.voidp, newValue);
+    return returnValue.typed;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+// Fetch and add for pointers
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    union { T * volatile *typed; void * volatile *voidp; } pointer;
+    union { T *typed; void *voidp; } returnValue;
+    pointer.typed = &_q_value;
+    returnValue.voidp = QBasicAtomicPointer_fetchAndAddOrdered(pointer.voidp, valueToAdd * sizeof(T));
+    return returnValue.typed;
+}
+
+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);
+}
 
 QT_END_NAMESPACE
 
diff --git a/src/corelib/arch/symbian/arch.pri b/src/corelib/arch/symbian/arch.pri
index deb94b1..3ef1c9e 100644
--- a/src/corelib/arch/symbian/arch.pri
+++ b/src/corelib/arch/symbian/arch.pri
@@ -2,4 +2,4 @@
 # Symbian architecture
 #
 SOURCES +=  $$QT_ARCH_CPP/qatomic_symbian.cpp \
-            $$QT_ARCH_CPP/../generic/qatomic_generic_unix.cpp
+            $$QT_ARCH_CPP/../armv6/qatomic_generic_armv6.cpp
diff --git a/src/corelib/arch/symbian/qatomic_symbian.cpp b/src/corelib/arch/symbian/qatomic_symbian.cpp
index 8f02155..91b49c7 100644
--- a/src/corelib/arch/symbian/qatomic_symbian.cpp
+++ b/src/corelib/arch/symbian/qatomic_symbian.cpp
@@ -50,7 +50,7 @@ QT_BEGIN_NAMESPACE
 // This way we can report on heap cells and handles that are really not owned by anything which still exists.
 // This information can be used to detect whether memory leaks are happening, particularly if these numbers grow as the app is used more.
 // This code is placed here as it happens to make it the very last static to be destroyed in a Qt app. The
-// reason assumed is that this file appears before any other file declaring static data in the generated 
+// reason assumed is that this file appears before any other file declaring static data in the generated
 // Symbian MMP file. This particular file was chosen as it is the earliest symbian specific file.
 struct QSymbianPrintExitInfo
 {
@@ -77,37 +77,158 @@ struct QSymbianPrintExitInfo
     TInt initThreadHandleCount;
 } symbian_printExitInfo;
 
-QT_END_NAMESPACE
+Q_CORE_EXPORT bool QBasicAtomicInt::isReferenceCountingNative()
+{
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
+}
 
+Q_CORE_EXPORT bool QBasicAtomicInt::isTestAndSetNative()
+{
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
+}
 
-#if defined(Q_CC_RVCT)
+Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndStoreNative()
+{
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
+}
 
-#include "../arm/qatomic_arm.cpp"
+Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndAddNative()
+{
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
+}
 
-QT_BEGIN_NAMESPACE
+Q_CORE_EXPORT bool QBasicAtomicPointer_isTestAndSetNative()
+{
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
+}
 
-Q_CORE_EXPORT __asm char q_atomic_swp(volatile char *ptr, char newval)
+Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndStoreNative()
 {
-    add r2, pc, #0
-    bx r2
-    arm
-    swpb r2,r1,[r0]
-    mov r0, r2
-    bx lr
-    thumb
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
 }
 
-Q_CORE_EXPORT __asm int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndAddNative()
 {
-    add r2, pc, #0
-    bx r2
-    arm
-    swp r2,r1,[r0]
-    mov r0, r2
-    bx lr
-    thumb
+#ifdef QT_HAVE_ARMV6
+    return true;
+#else
+    return false;
+#endif
 }
 
-QT_END_NAMESPACE
+//For ARMv6, the generic atomics are machine coded
+#ifndef QT_HAVE_ARMV6
+
+class QCriticalSection
+{
+public:
+        QCriticalSection()  { fastlock.CreateLocal(); }
+        ~QCriticalSection() { fastlock.Close(); }
+        void lock()         { fastlock.Wait(); }
+        void unlock()       { fastlock.Signal(); }
 
-#endif // Q_CC_RVCT
+private:
+        RFastLock fastlock;
+};
+
+QCriticalSection qAtomicCriticalSection;
+
+Q_CORE_EXPORT
+bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue)
+{
+    bool returnValue = false;
+    qAtomicCriticalSection.lock();
+    if (*_q_value == expectedValue) {
+        *_q_value = newValue;
+        returnValue = true;
+    }
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+Q_CORE_EXPORT
+int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue)
+{
+    int returnValue;
+        qAtomicCriticalSection.lock();
+    returnValue = *_q_value;
+    *_q_value = newValue;
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+Q_CORE_EXPORT
+int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd)
+{
+    int returnValue;
+        qAtomicCriticalSection.lock();
+    returnValue = *_q_value;
+    *_q_value += valueToAdd;
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+Q_CORE_EXPORT
+bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value,
+                                           void *expectedValue,
+                                           void *newValue)
+{
+    bool returnValue = false;
+        qAtomicCriticalSection.lock();
+    if (*_q_value == expectedValue) {
+        *_q_value = newValue;
+        returnValue = true;
+    }
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+Q_CORE_EXPORT
+void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue)
+{
+    void *returnValue;
+        qAtomicCriticalSection.lock();
+    returnValue = *_q_value;
+    *_q_value = newValue;
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+Q_CORE_EXPORT
+void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd)
+{
+    void *returnValue;
+        qAtomicCriticalSection.lock();
+    returnValue = *_q_value;
+    *_q_value = reinterpret_cast<char *>(returnValue) + valueToAdd;
+        qAtomicCriticalSection.unlock();
+    return returnValue;
+}
+
+#endif // QT_HAVE_ARMV6
+
+QT_END_NAMESPACE
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index d113e02..9558256 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -437,13 +437,18 @@ namespace QT_NAMESPACE {}
 #elif defined(__GCCE__)
 #  define Q_CC_GCCE
 #  define QT_VISIBILITY_AVAILABLE
+#  if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__)
+#    define QT_HAVE_ARMV6
+#  endif
 
 /* ARM Realview Compiler Suite
    RVCT compiler also defines __EDG__ and __GNUC__ (if --gnu flag is given),
    so check for it before that */
 #elif defined(__ARMCC__) || defined(__CC_ARM)
 #  define Q_CC_RVCT
-
+#  if __TARGET_ARCH_ARM >= 6
+#    define QT_HAVE_ARMV6
+#  endif
 #elif defined(__GNUC__)
 #  define Q_CC_GNU
 #  define Q_C_CALLBACKS
diff --git a/src/gui/painting/painting.pri b/src/gui/painting/painting.pri
index c35c33a..628a109 100644
--- a/src/gui/painting/painting.pri
+++ b/src/gui/painting/painting.pri
@@ -370,7 +370,6 @@ symbian {
         SOURCES += painting/qwindowsurface_s60.cpp
         armccIfdefBlock = \
         "$${LITERAL_HASH}if defined(ARMV6)" \
-        "MACRO QT_HAVE_ARMV6" \
         "SOURCEPATH 	painting" \
         "SOURCE			qblendfunctions_armv6_rvct.s" \
         "SOURCE			qdrawhelper_armv6_rvct.s" \
diff --git a/src/s60installs/bwins/QtCoreu.def b/src/s60installs/bwins/QtCoreu.def
index 146d47e..1218b75 100644
--- a/src/s60installs/bwins/QtCoreu.def
+++ b/src/s60installs/bwins/QtCoreu.def
@@ -4384,4 +4384,7 @@ EXPORTS
 	?staticMetaObject@QAbstractTableModel@@2UQMetaObject@@B @ 4383 NONAME ; struct QMetaObject const QAbstractTableModel::staticMetaObject
 	?staticMetaObject@QFile@@2UQMetaObject@@B @ 4384 NONAME ; struct QMetaObject const QFile::staticMetaObject
 	?staticMetaObject@QHistoryState@@2UQMetaObject@@B @ 4385 NONAME ; struct QMetaObject const QHistoryState::staticMetaObject
+	?QBasicAtomicPointer_isFetchAndAddNative@@YA_NXZ @ 4386 NONAME ; bool QBasicAtomicPointer_isFetchAndAddNative(void)
+	?QBasicAtomicPointer_isFetchAndStoreNative@@YA_NXZ @ 4387 NONAME ; bool QBasicAtomicPointer_isFetchAndStoreNative(void)
+	?QBasicAtomicPointer_isTestAndSetNative@@YA_NXZ @ 4388 NONAME ; bool QBasicAtomicPointer_isTestAndSetNative(void)
 
diff --git a/src/s60installs/eabi/QtCoreu.def b/src/s60installs/eabi/QtCoreu.def
index faf8b1e..99be68e 100644
--- a/src/s60installs/eabi/QtCoreu.def
+++ b/src/s60installs/eabi/QtCoreu.def
@@ -13,7 +13,7 @@ EXPORTS
 	_Z11qt_int_sqrtj @ 12 NONAME
 	_Z12noforcepointR11QTextStream @ 13 NONAME
 	_Z12qSharedBuildv @ 14 NONAME
-	_Z12q_atomic_swpPVcc @ 15 NONAME
+	_Z12q_atomic_swpPVcc @ 15 NONAME ABSENT
 	_Z12qt_s60GetRFsv @ 16 NONAME
 	_Z13lowercasebaseR11QTextStream @ 17 NONAME
 	_Z13qErrnoWarningPKcz @ 18 NONAME
@@ -24,7 +24,7 @@ EXPORTS
 	_Z15lowercasedigitsR11QTextStream @ 23 NONAME
 	_Z15qAddPostRoutinePFvvE @ 24 NONAME
 	_Z15qInitResourceIOv @ 25 NONAME
-	_Z15qt_atomic_yieldPi @ 26 NONAME
+	_Z15qt_atomic_yieldPi @ 26 NONAME ABSENT
 	_Z15qt_error_stringi @ 27 NONAME
 	_Z15uppercasedigitsR11QTextStream @ 28 NONAME
 	_Z16qt_QString2HBufCRK7QString @ 29 NONAME
@@ -706,7 +706,7 @@ EXPORTS
 	_ZN15QAnimationGroupD0Ev @ 705 NONAME
 	_ZN15QAnimationGroupD1Ev @ 706 NONAME
 	_ZN15QAnimationGroupD2Ev @ 707 NONAME
-	_ZN15QBasicAtomicInt20fetchAndStoreOrderedEi @ 708 NONAME
+	_ZN15QBasicAtomicInt20fetchAndStoreOrderedEi @ 708 NONAME ABSENT
 	_ZN15QDateTimeParser11parseFormatERK7QString @ 709 NONAME
 	_ZN15QLinkedListData11shared_nullE @ 710 NONAME DATA 20
 	_ZN15QObjectUserDataD0Ev @ 711 NONAME
@@ -3566,7 +3566,7 @@ EXPORTS
 	inflateSync @ 3565 NONAME
 	inflateSyncPoint @ 3566 NONAME
 	qMetaTypeGuiHelper @ 3567 NONAME DATA 4
-	q_atomic_lock @ 3568 NONAME DATA 1
+	q_atomic_lock @ 3568 NONAME DATA 1 ABSENT
 	qt_addObject @ 3569 NONAME
 	qt_global_mutexpool @ 3570 NONAME DATA 4
 	qt_locale_initialized @ 3571 NONAME DATA 1
@@ -3612,4 +3612,11 @@ EXPORTS
 	_ZNK13QStateMachine10isAnimatedEv @ 3611 NONAME
 	_ZNK18QAbstractAnimation15currentLoopTimeEv @ 3612 NONAME
 	_ZNK7QRegExp12captureCountEv @ 3613 NONAME
+	_Z38QBasicAtomicPointer_isTestAndSetNativev @ 3614 NONAME
+	_Z39QBasicAtomicPointer_isFetchAndAddNativev @ 3615 NONAME
+	_Z41QBasicAtomicPointer_isFetchAndStoreNativev @ 3616 NONAME
+	_ZN15QBasicAtomicInt18isTestAndSetNativeEv @ 3617 NONAME
+	_ZN15QBasicAtomicInt19isFetchAndAddNativeEv @ 3618 NONAME
+	_ZN15QBasicAtomicInt21isFetchAndStoreNativeEv @ 3619 NONAME
+	_ZN15QBasicAtomicInt25isReferenceCountingNativeEv @ 3620 NONAME