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| author | Tzachi Zidenberg <tsahee@amazon.com> | 2020-07-05 15:21:43 +0300 |
|---|---|---|
| committer | Daniel Black <daniel@mariadb.org> | 2021-11-09 18:35:00 +1100 |
| commit | 2fd06ed9ce4f4da437ca0f5bc30d29f7d369e81e (patch) | |
| tree | e130467a68fd6d21ce5ba9c09fc612ea2d33dbf2 | |
| parent | 524b4a89da3d9143ad72a82d73617ffde9e3a7a8 (diff) | |
| download | mariadb-git-bb-10.3-danielblack-MDEV-27008-aarch-atomics.tar.gz | |
MDEV-27008: aarch64: use compiler flag outline-atomics if availablebb-10.3-danielblack-MDEV-27008-aarch-atomics
outline-atomics compilation flag changes behaviour of builtin_atomics,
by adding runtime detection of LSE atomics. If these are supported, they
will be used. This gains LSE atomics use without hurting compatibility
with older aarch64 machines.
Backport of f843e215f3f640de377d8fd60e85bb372fb138fd to fix f502ccbcb5dfce29067434885a23db8d1bd5f134
| -rw-r--r-- | configure.cmake | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.cmake b/configure.cmake index db8742bb93b..55ce4a4313b 100644 --- a/configure.cmake +++ b/configure.cmake @@ -74,6 +74,11 @@ IF(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND CMAKE_COMPILER_IS_GNUCC AND SET(PLUGIN_QUERY_RESPONSE_TIME NO CACHE BOOL "Disabled, gcc is too old") ENDIF() +# use runtime atomic-support detection in aarch64 +IF(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64") + MY_CHECK_AND_SET_COMPILER_FLAG("-moutline-atomics") +ENDIF() + IF(WITHOUT_DYNAMIC_PLUGINS) MESSAGE("Dynamic plugins are disabled.") ENDIF(WITHOUT_DYNAMIC_PLUGINS) |