Overview
| Comment: | of_memory_barrier(): Only use mfence on x86_64
This is only available on x86 with SSE2, while it's always available on |
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| SHA3-256: |
9feaa90358c58d02cc31bb50d7b51e09 |
| User & Date: | js on 2016-07-30 21:46:24 |
| Other Links: | manifest | tags |
Context
|
2016-07-30
| ||
| 23:29 | atomic.h: Use the OSAtomic variant without barrier check-in: 0c3e3da576 user: js tags: trunk | |
| 21:46 | of_memory_barrier(): Only use mfence on x86_64 check-in: 9feaa90358 user: js tags: trunk | |
| 21:22 | of_spinlock_(un)lock: Add memory barrier check-in: 8e7c6ddf8c user: js tags: trunk | |
Changes
Modified src/atomic.h from [c6a5af4a20] to [23c4a049f4].
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}
static OF_INLINE void
of_memory_barrier(void)
{
#if !defined(OF_HAVE_THREADS)
/* nop */
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}
static OF_INLINE void
of_memory_barrier(void)
{
#if !defined(OF_HAVE_THREADS)
/* nop */
#elif defined(OF_X86_64_ASM)
__asm__ __volatile__ (
"mfence" ::: "memory"
);
#elif defined(OF_POWERPC_ASM)
__asm__ __volatile__ (
"sync" ::: "memory"
);
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