diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
| commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
| tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/port/atomics/arch-arm.h | |
| parent | Initial commit. (diff) | |
| download | postgresql-13-upstream.tar.xz postgresql-13-upstream.zip | |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/port/atomics/arch-arm.h')
| -rw-r--r-- | src/include/port/atomics/arch-arm.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/include/port/atomics/arch-arm.h b/src/include/port/atomics/arch-arm.h new file mode 100644 index 0000000..6b925a7 --- /dev/null +++ b/src/include/port/atomics/arch-arm.h @@ -0,0 +1,26 @@ +/*------------------------------------------------------------------------- + * + * arch-arm.h + * Atomic operations considerations specific to ARM + * + * Portions Copyright (c) 2013-2020, 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 */ |