[PATCH v11 11/16] eal: exclude exposure of rte atomic APIs for MSVC builds

[Tyler Retzlaff]

It's discouraged to use rte_atomics APIs instead standard APIs should be
used from C11. Since MSVC is a new toolchain/platform combination block
visibility of the rte_atomic APIs from day 1.

Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
Acked-by: Morten Brørup <mb at smartsharesystems.com>
---
 lib/eal/include/generic/rte_atomic.h | 7 +++++++
 lib/eal/x86/include/rte_atomic.h     | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/lib/eal/include/generic/rte_atomic.h b/lib/eal/include/generic/rte_atomic.h
index 2d36eb0..b14e9fe 100644
--- a/lib/eal/include/generic/rte_atomic.h
+++ b/lib/eal/include/generic/rte_atomic.h
@@ -161,6 +161,8 @@
 
 /*------------------------- 16 bit atomic operations -------------------------*/
 
+#ifndef RTE_TOOLCHAIN_MSVC
+
 /**
  * Atomic compare and set.
  *
@@ -1068,8 +1070,11 @@ static inline void rte_atomic64_clear(rte_atomic64_t *v)
 }
 #endif
 
+#endif
+
 /*------------------------ 128 bit atomic operations -------------------------*/
 
+
 /**
  * 128-bit integer structure.
  */
@@ -1079,8 +1084,10 @@ static inline void rte_atomic64_clear(rte_atomic64_t *v)
 	union {
 		uint64_t val[2];
 #ifdef RTE_ARCH_64
+#ifndef RTE_TOOLCHAIN_MSVC
 		__extension__ __int128 int128;
 #endif
+#endif
 	};
 } __rte_aligned(16) rte_int128_t;
 
diff --git a/lib/eal/x86/include/rte_atomic.h b/lib/eal/x86/include/rte_atomic.h
index 7aba1c3..9ba61f8 100644
--- a/lib/eal/x86/include/rte_atomic.h
+++ b/lib/eal/x86/include/rte_atomic.h
@@ -83,6 +83,8 @@
 
 #define rte_io_rmb() rte_compiler_barrier()
 
+#ifndef RTE_TOOLCHAIN_MSVC
+
 /**
  * Synchronization fence between threads based on the specified memory order.
  *
@@ -279,6 +281,8 @@ static inline int rte_atomic32_dec_and_test(rte_atomic32_t *v)
 #include "rte_atomic_64.h"
 #endif
 
+#endif
+
 #ifdef __cplusplus
 }
 #endif
-- 
1.8.3.1