From c6d2d1f474a83fcf3312a17b041db344236fa0fe Mon Sep 17 00:00:00 2001
From: alvin1221 <68314044+alvin1221@users.noreply.github.com>
Date: Mon, 30 May 2022 11:00:57 +0800
Subject: fixes #1586 Undefined reference to nni_atomic_swap &
 nni_atomic_cas(Built by gcc 4.8.5 ). (#1587)

---
 src/platform/posix/posix_atomic.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/platform/posix')

diff --git a/src/platform/posix/posix_atomic.c b/src/platform/posix/posix_atomic.c
index 0f904ae1..60875845 100644
--- a/src/platform/posix/posix_atomic.c
+++ b/src/platform/posix/posix_atomic.c
@@ -284,6 +284,12 @@ nni_atomic_cas64(nni_atomic_u64 *v, uint64_t comp, uint64_t new)
 	    &v->v, &comp, new, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST));
 }
 
+int
+nni_atomic_swap(nni_atomic_int *v, int u)
+{
+	return (__atomic_exchange_n(&v->v, u, __ATOMIC_SEQ_CST));
+}
+
 void
 nni_atomic_init(nni_atomic_int *v)
 {
@@ -331,6 +337,13 @@ nni_atomic_dec_nv(nni_atomic_int *v)
 	return (__atomic_sub_fetch(&v->v, 1, __ATOMIC_SEQ_CST));
 }
 
+bool
+nni_atomic_cas(nni_atomic_int *v, int comp, int new)
+{
+	return (__atomic_compare_exchange_n(
+	    &v->v, &comp, new, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST));
+}
+
 void *
 nni_atomic_get_ptr(nni_atomic_ptr *v)
 {
-- 
cgit v1.2.3-70-g09d2