From 8bf5f93ac13b65da471c24b85262fd8b3e2f225a Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 27 Aug 2019 09:50:05 +0200
Subject: atomic.h: Add atomic_load_long()

---
 rtemsbsd/include/machine/atomic.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/rtemsbsd/include/machine/atomic.h b/rtemsbsd/include/machine/atomic.h
index 347ea2e3..a4b6b488 100644
--- a/rtemsbsd/include/machine/atomic.h
+++ b/rtemsbsd/include/machine/atomic.h
@@ -1477,6 +1477,27 @@ atomic_readandclear_long(volatile long *p)
 	return (tmp);
 }
 
+static inline long
+atomic_load_long(volatile long *p)
+{
+	long tmp;
+
+#if defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_ATOMIC)
+	std::atomic_long *q =
+	    reinterpret_cast<std::atomic_long *>(const_cast<long *>(p));
+
+	tmp = q->load(std::memory_order_relaxed);
+#elif defined(_RTEMS_BSD_MACHINE_ATOMIC_USE_STDATOMIC)
+	atomic_long *q = (atomic_long *)RTEMS_DEVOLATILE(long *, p);
+
+	tmp = atomic_load_explicit(q, memory_order_relaxed);
+#else
+	tmp = *p;
+#endif
+
+	return (tmp);
+}
+
 static inline long
 atomic_load_acq_long(volatile long *p)
 {
-- 
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