diff options
| author | Volker Lendecke <vl@samba.org> | 2021-12-13 17:40:52 +0100 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2021-12-15 00:15:33 +0000 |
| commit | 62dab3921b335d47a0c9c419714d0e2ea2320f74 (patch) | |
| tree | b991163bdafa8e3240aecc1966c59c31beab6a30 /lib/replace | |
| parent | 1dc803048f8f0069079142245ec5ac4c11933bff (diff) | |
| download | samba-62dab3921b335d47a0c9c419714d0e2ea2320f74.tar.gz | |
configure: Check for __atomic_add_fetch() and __atomic_load()
To be used in the tdb_seqnum code soon
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Diffstat (limited to 'lib/replace')
| -rw-r--r-- | lib/replace/wscript | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/replace/wscript b/lib/replace/wscript index a928b80f2f7..e60ff15f903 100644 --- a/lib/replace/wscript +++ b/lib/replace/wscript @@ -313,6 +313,22 @@ def configure(conf): headers='stdint.h sys/atomic.h', msg='Checking for atomic_add_32 compiler builtin') + conf.CHECK_CODE(''' + uint32_t i,j; + j = __atomic_add_fetch(&i,1,__ATOMIC_SEQ_CST) + ''', + 'HAVE___ATOMIC_ADD_FETCH', + headers='stdint.h', + msg='Checking for __atomic_add_fetch compiler builtin') + + conf.CHECK_CODE(''' + uint32_t i,j; + __atomic_load(&i,&j,__ATOMIC_SEQ_CST) + ''', + 'HAVE___ATOMIC_ADD_LOAD', + headers='stdint.h', + msg='Checking for __atomic_load compiler builtin') + # Check for thread fence. */ tf = conf.CHECK_CODE('atomic_thread_fence(memory_order_seq_cst);', 'HAVE_ATOMIC_THREAD_FENCE', |