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void-packages/srcpkgs/qt/patches/powerpc.patch

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Source: @pullmoll
Upstream: no (Qt4 is dead)
Reason: Implement atomic operations like it was done for aarch64 using gcc builtins
diff -rub qt.orig/src/corelib/arch/powerpc/arch.pri qt/src/corelib/arch/powerpc/arch.pri
--- qt.orig/src/corelib/arch/powerpc/arch.pri 2015-05-07 16:14:48.000000000 +0200
+++ qt/src/corelib/arch/powerpc/arch.pri 2019-06-13 13:29:09.168289246 +0200
@@ -1,10 +1,4 @@
#
# PowerPC architecture
#
-!*-g++* {
- *-64 {
- SOURCES += $$QT_ARCH_CPP/qatomic64.s
- } else {
- SOURCES += $$QT_ARCH_CPP/qatomic32.s
- }
-}
+SOURCES += $$QT_ARCH_CPP/qatomic_powerpc.cpp
diff -rub qt.orig/src/corelib/arch/qatomic_powerpc.h qt/corelib/arch/qatomic_powerpc.h
--- qt.orig/src/corelib/arch/qatomic_powerpc.h 2015-05-07 16:14:48.000000000 +0200
+++ qt/src/corelib/arch/qatomic_powerpc.h 2019-06-13 13:30:55.499295070 +0200
@@ -101,546 +101,233 @@
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
{ return false; }
-#if defined(Q_CC_GNU)
-
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2) \
- || (!defined(__64BIT__) && !defined(__powerpc64__) && !defined(__ppc64__))
-# define _Q_VALUE "0, %[_q_value]"
-# define _Q_VALUE_MEMORY_OPERAND "+m" (_q_value)
-# define _Q_VALUE_REGISTER_OPERAND [_q_value] "r" (&_q_value),
-#else
-// On 64-bit with gcc >= 4.2
-# define _Q_VALUE "%y[_q_value]"
-# define _Q_VALUE_MEMORY_OPERAND [_q_value] "+Z" (_q_value)
-# define _Q_VALUE_REGISTER_OPERAND
+#ifndef Q_DATA_MEMORY_BARRIER
+# define Q_DATA_MEMORY_BARRIER asm volatile("sync\n":::"memory")
+#endif
+#ifndef Q_COMPILER_MEMORY_BARRIER
+# define Q_COMPILER_MEMORY_BARRIER asm volatile("":::"memory")
#endif
inline bool QBasicAtomicInt::ref()
{
- register int originalValue;
- register int newValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "addi %[newValue], %[originalValue], %[one]\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&b" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [one] "i" (1)
- : "cc", "memory");
+ int newValue;
+
+ Q_COMPILER_MEMORY_BARRIER;
+ newValue = __atomic_add_fetch(&_q_value, 1, __ATOMIC_ACQ_REL);
+ Q_COMPILER_MEMORY_BARRIER;
+
return newValue != 0;
}
inline bool QBasicAtomicInt::deref()
{
- register int originalValue;
- register int newValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "addi %[newValue], %[originalValue], %[minusOne]\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&b" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [minusOne] "i" (-1)
- : "cc", "memory");
+ int newValue;
+
+ Q_COMPILER_MEMORY_BARRIER;
+ newValue = __atomic_sub_fetch(&_q_value, 1, __ATOMIC_ACQ_REL);
+ Q_COMPILER_MEMORY_BARRIER;
+
return newValue != 0;
}
inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
{
- register int result;
- asm volatile("lwarx %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+12\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
-}
+ bool val;
-inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
-{
- register int result;
- asm volatile("lwarx %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+16\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- "isync\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
-{
- register int result;
- asm volatile("eieio\n"
- "lwarx %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+12\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_compare_exchange_n (&_q_value, &expectedValue, newValue,
+ false, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
{
- register int originalValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
-}
-
-inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
-{
- register int originalValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- "isync\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
-}
-
-inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
-{
- register int originalValue;
- asm volatile("eieio\n"
- "lwarx %[originalValue]," _Q_VALUE "\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
+ int val;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_exchange_n(&_q_value, newValue, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
{
- register int originalValue;
- register int newValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd)
- : "cc", "memory");
- return originalValue;
+ int val;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_fetch_add(&_q_value, valueToAdd, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
-inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
-{
- register int originalValue;
- register int newValue;
- asm volatile("lwarx %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- "isync\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd)
- : "cc", "memory");
- return originalValue;
-}
-
-inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
-{
- register int originalValue;
- register int newValue;
- asm volatile("eieio\n"
- "lwarx %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- "stwcx. %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd)
- : "cc", "memory");
- return originalValue;
-}
-
-#if defined(__64BIT__) || defined(__powerpc64__) || defined(__ppc64__)
-# define LPARX "ldarx"
-# define STPCX "stdcx."
-#else
-# define LPARX "lwarx"
-# define STPCX "stwcx."
-#endif
-
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
{
- register void *result;
- asm volatile(LPARX" %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+12\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
-{
- register void *result;
- asm volatile(LPARX" %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+16\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- "isync\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
-{
- register void *result;
- asm volatile("eieio\n"
- LPARX" %[result]," _Q_VALUE "\n"
- "xor. %[result], %[result], %[expectedValue]\n"
- "bne $+12\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-16\n"
- : [result] "=&r" (result),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [expectedValue] "r" (expectedValue),
- [newValue] "r" (newValue)
- : "cc", "memory");
- return result == 0;
+ bool val;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_compare_exchange_n (&_q_value, &expectedValue, newValue,
+ false, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
{
- register T *originalValue;
- asm volatile(LPARX" %[originalValue]," _Q_VALUE "\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
-{
- register T *originalValue;
- asm volatile(LPARX" %[originalValue]," _Q_VALUE "\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- "isync\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
-{
- register T *originalValue;
- asm volatile("eieio\n"
- LPARX" %[originalValue]," _Q_VALUE "\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-8\n"
- : [originalValue] "=&r" (originalValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [newValue] "r" (newValue)
- : "cc", "memory");
- return originalValue;
+ T *val;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_exchange_n(&_q_value, newValue, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
{
- register T *originalValue;
- register T *newValue;
- asm volatile(LPARX" %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd * sizeof(T))
- : "cc", "memory");
- return originalValue;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
-{
- register T *originalValue;
- register T *newValue;
- asm volatile(LPARX" %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- "isync\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd * sizeof(T))
- : "cc", "memory");
- return originalValue;
-}
-
-template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
-{
- register T *originalValue;
- register T *newValue;
- asm volatile("eieio\n"
- LPARX" %[originalValue]," _Q_VALUE "\n"
- "add %[newValue], %[originalValue], %[valueToAdd]\n"
- STPCX" %[newValue]," _Q_VALUE "\n"
- "bne- $-12\n"
- : [originalValue] "=&r" (originalValue),
- [newValue] "=&r" (newValue),
- _Q_VALUE_MEMORY_OPERAND
- : _Q_VALUE_REGISTER_OPERAND
- [valueToAdd] "r" (valueToAdd * sizeof(T))
- : "cc", "memory");
- return originalValue;
-}
-
-#undef LPARX
-#undef STPCX
-#undef _Q_VALUE
-#undef _Q_VALUE_MEMORY_OPERAND
-#undef _Q_VALUE_REGISTER_OPERAND
-
-#else
-
-extern "C" {
- int q_atomic_test_and_set_int(volatile int *ptr, int expectedValue, int newValue);
- int q_atomic_test_and_set_acquire_int(volatile int *ptr, int expectedValue, int newValue);
- int q_atomic_test_and_set_release_int(volatile int *ptr, int expectedValue, int newValue);
- int q_atomic_test_and_set_ptr(volatile void *ptr, void *expectedValue, void *newValue);
- int q_atomic_test_and_set_acquire_ptr(volatile void *ptr, void *expectedValue, void *newValue);
- int q_atomic_test_and_set_release_ptr(volatile void *ptr, void *expectedValue, void *newValue);
- int q_atomic_increment(volatile int *);
- int q_atomic_decrement(volatile int *);
- int q_atomic_set_int(volatile int *, int);
- int q_atomic_fetch_and_store_acquire_int(volatile int *ptr, int newValue);
- int q_atomic_fetch_and_store_release_int(volatile int *ptr, int newValue);
- void *q_atomic_set_ptr(volatile void *, void *);
- int q_atomic_fetch_and_store_acquire_ptr(volatile void *ptr, void *newValue);
- int q_atomic_fetch_and_store_release_ptr(volatile void *ptr, void *newValue);
- int q_atomic_fetch_and_add_int(volatile int *ptr, int valueToAdd);
- int q_atomic_fetch_and_add_acquire_int(volatile int *ptr, int valueToAdd);
- int q_atomic_fetch_and_add_release_int(volatile int *ptr, int valueToAdd);
- void *q_atomic_fetch_and_add_ptr(volatile void *ptr, qptrdiff valueToAdd);
- void *q_atomic_fetch_and_add_acquire_ptr(volatile void *ptr, qptrdiff valueToAdd);
- void *q_atomic_fetch_and_add_release_ptr(volatile void *ptr, qptrdiff valueToAdd);
-} // extern "C"
-
-
-inline bool QBasicAtomicInt::ref()
-{
- return q_atomic_increment(&_q_value) != 0;
-}
-
-inline bool QBasicAtomicInt::deref()
-{
- return q_atomic_decrement(&_q_value) != 0;
-}
-
-inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
-{
- return q_atomic_test_and_set_int(&_q_value, expectedValue, newValue) != 0;
+ T *val;
+ Q_COMPILER_MEMORY_BARRIER;
+ val = __atomic_fetch_add(&_q_value, valueToAdd, __ATOMIC_RELAXED);
+ Q_COMPILER_MEMORY_BARRIER;
+ return val;
}
inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
{
- return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0;
+ bool returnValue = testAndSetRelaxed(expectedValue, newValue);
+ Q_DATA_MEMORY_BARRIER;
+ return returnValue;
}
inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
{
- return q_atomic_test_and_set_release_int(&_q_value, expectedValue, newValue) != 0;
+ Q_DATA_MEMORY_BARRIER;
+ return testAndSetRelaxed(expectedValue, newValue);
}
-inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
{
- return q_atomic_set_int(&_q_value, newValue);
+ Q_DATA_MEMORY_BARRIER;
+ bool returnValue = testAndSetRelaxed(expectedValue, newValue);
+ Q_COMPILER_MEMORY_BARRIER;
+ return returnValue;
}
inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
{
- return q_atomic_fetch_and_store_acquire_int(&_q_value, newValue);
+ int returnValue = fetchAndStoreRelaxed(newValue);
+ Q_DATA_MEMORY_BARRIER;
+ return returnValue;
}
inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
{
- return q_atomic_fetch_and_store_release_int(&_q_value, newValue);
+ Q_DATA_MEMORY_BARRIER;
+ return fetchAndStoreRelaxed(newValue);
}
-inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
{
- return q_atomic_fetch_and_add_int(&_q_value, valueToAdd);
+ Q_DATA_MEMORY_BARRIER;
+ int returnValue = fetchAndStoreRelaxed(newValue);
+ Q_COMPILER_MEMORY_BARRIER;
+ return returnValue;
}
inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
{
- return q_atomic_fetch_and_add_acquire_int(&_q_value, valueToAdd);
+ int returnValue = fetchAndAddRelaxed(valueToAdd);
+ Q_DATA_MEMORY_BARRIER;
+ return returnValue;
}
inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
{
- return q_atomic_fetch_and_add_release_int(&_q_value, valueToAdd);
+ Q_DATA_MEMORY_BARRIER;
+ return fetchAndAddRelaxed(valueToAdd);
}
-template <typename T>
-Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
{
- return q_atomic_test_and_set_ptr(&_q_value, expectedValue, newValue) != 0;
+ 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)
{
- return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0;
+ 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)
{
- return q_atomic_test_and_set_release_ptr(&_q_value, expectedValue, newValue) != 0;
+ Q_DATA_MEMORY_BARRIER;
+ return testAndSetRelaxed(expectedValue, newValue);
}
template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
{
- return reinterpret_cast<T *>(q_atomic_set_ptr(&_q_value, 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)
{
- return reinterpret_cast<T *>(q_atomic_fetch_and_store_acquire_ptr(&_q_value, newValue));
+ T *returnValue = fetchAndStoreRelaxed(newValue);
+ Q_DATA_MEMORY_BARRIER;
+ return returnValue;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
{
- return reinterpret_cast<T *>(q_atomic_fetch_and_store_release_ptr(&_q_value, newValue));
+ Q_DATA_MEMORY_BARRIER;
+ return fetchAndStoreRelaxed(newValue);
}
template <typename T>
-Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
{
- return reinterpret_cast<T *>(q_atomic_fetch_and_add_ptr(&_q_value, valueToAdd * sizeof(T)));
+ 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)
{
- return reinterpret_cast<T *>(q_atomic_fetch_and_add_acquire_ptr(&_q_value, valueToAdd * sizeof(T)));
+ T *returnValue = fetchAndAddRelaxed(valueToAdd);
+ Q_DATA_MEMORY_BARRIER;
+ return returnValue;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
{
- return reinterpret_cast<T *>(q_atomic_fetch_and_add_release_ptr(&_q_value, valueToAdd * sizeof(T)));
-}
-
-#endif
-
-inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
-{
- return testAndSetAcquire(expectedValue, newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
-{
- return fetchAndStoreAcquire(newValue);
-}
-
-inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
-{
- return fetchAndAddAcquire(valueToAdd);
-}
-
-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>::fetchAndStoreOrdered(T *newValue)
-{
- return fetchAndStoreAcquire(newValue);
+ Q_DATA_MEMORY_BARRIER;
+ return fetchAndAddRelaxed(valueToAdd);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
{
- return fetchAndAddAcquire(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
--- /dev/null
+++ qt/src/corelib/arch/powerpc/qatomic_powerpc.cpp
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2012, 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qglobal.h>
+
+#include <unistd.h>
+#ifdef _POSIX_PRIORITY_SCHEDULING
+# include <sched.h>
+#endif
+#include <time.h>
+
+QT_BEGIN_NAMESPACE
+
+QT_USE_NAMESPACE
+
+Q_CORE_EXPORT void qt_atomic_yield(int *count)
+{
+#ifdef _POSIX_PRIORITY_SCHEDULING
+ if((*count)++ < 50) {
+ sched_yield();
+ } else
+#endif
+ {
+ struct timespec tm;
+ tm.tv_sec = 0;
+ tm.tv_nsec = 2000001;
+ nanosleep(&tm, NULL);
+ *count = 0;
+ }
+}
+
+QT_END_NAMESPACE
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