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Update to FreeBSD head 2018-06-01

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Git mirror commit fb63610a69b0eb7f69a201ba05c4c1a7a2739cf9.

Update #3472.
This commit is contained in:
Sebastian Huber
2018-08-21 13:47:02 +02:00
parent 2df56dbd60
commit bcdce02d9b
340 changed files with 27754 additions and 11720 deletions
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33
rtemsbsd/include/machine/atomic.h
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@@ -379,6 +379,39 @@ atomic_cmpset_int(volatile int *p, int cmp, int set)
return (rv);
}
static inline int
atomic_fcmpset_int(volatile int *p, int *cmp, int set)
{
int rv;
#if defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_ATOMIC)
std::atomic_int *q =
reinterpret_cast<std::atomic_int *>(const_cast<int *>(p));
rv = q->compare_exchange_strong(*cmp, set, std::memory_order_seq_cst,
std::memory_order_relaxed);
#elif defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_STDATOMIC)
atomic_int *q = (atomic_int *)RTEMS_DEVOLATILE(int *, p);
rv = atomic_compare_exchange_strong_explicit(q, cmp, set,
memory_order_seq_cst, memory_order_relaxed);
#else
rtems_interrupt_level level;
int actual;
rtems_interrupt_disable(level);
actual = *p;
rv = actual == *cmp;
*cmp = actual;
if (rv) {
*p = set;
}
rtems_interrupt_enable(level);
#endif
return (rv);
}
static inline int
atomic_cmpset_acq_int(volatile int *p, int cmp, int set)
{