vppinfra: add atomic macros for __sync builtins

This is first part of addition of atomic macros with only macros for
__sync builtins.

- Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/)
Additionally
- clib_atomic_release macro added and used in the absence
of any memory barrier.
- clib_atomic_bool_cmp_and_swap added

Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/extras/japi/java/jvpp-common/jvpp_common.h b/extras/japi/java/jvpp-common/jvpp_common.h
index 14027a96f78..dd48138a536 100644
--- a/extras/japi/java/jvpp-common/jvpp_common.h
+++ b/extras/japi/java/jvpp-common/jvpp_common.h
@@ -43,11 +43,11 @@ typedef struct {
 extern jvpp_main_t jvpp_main __attribute__((aligned (64)));
 
 static_always_inline u32 vppjni_get_context_id(jvpp_main_t * jm) {
-    return __sync_add_and_fetch(&jm->context_id, 1);
+    return clib_atomic_add_fetch(&jm->context_id, 1);
 }
 
 static_always_inline void vppjni_lock(jvpp_main_t * jm, u32 tag) {
-    while (__sync_lock_test_and_set(&jm->lock, 1))
+    while (clib_atomic_test_and_set(&jm->lock))
         ;
     jm->tag = tag;
 }