blob: efa385321e8b6aab5294de21a321d218ba96eef2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
/*-------------------------------------------------------------------------
*
* arch-arm.h
* Atomic operations considerations specific to ARM
*
* Portions Copyright (c) 2013-2021, PostgreSQL Global Development Group
*
* NOTES:
*
* src/include/port/atomics/arch-arm.h
*
*-------------------------------------------------------------------------
*/
/* intentionally no include guards, should only be included by atomics.h */
#ifndef INSIDE_ATOMICS_H
#error "should be included via atomics.h"
#endif
/*
* 64 bit atomics on ARM32 are implemented using kernel fallbacks and thus
* might be slow, so disable entirely. On ARM64 that problem doesn't exist.
*/
#if !defined(__aarch64__) && !defined(__aarch64)
#define PG_DISABLE_64_BIT_ATOMICS
#endif /* __aarch64__ || __aarch64 */
|
