[dpdk-dev] [[PATCH v5] 2/5] compat: Add __rte_experimental macro

[Neil Horman]

The __rte_experimental macro tags a given exported function as being part of
the EXPERIMENTAL api.  Use of this tag will cause any caller of the
function (that isn't removed by dead code elimination) to emit a warning
that the user is making use of an API whos stabilty isn't guaranteed.
It also places the function in the .text.experimental section, which is
used to validate the tag against the corresponding library version map

Signed-off-by: Neil Horman <nhorman at tuxdriver.com>
CC: Thomas Monjalon <thomas at monjalon.net>
CC: "Mcnamara, John" <john.mcnamara at intel.com>
CC: Bruce Richardson <bruce.richardson at intel.com>
---
 lib/librte_compat/rte_compat.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/librte_compat/rte_compat.h b/lib/librte_compat/rte_compat.h
index 41e8032ba..ad8f81ffe 100644
--- a/lib/librte_compat/rte_compat.h
+++ b/lib/librte_compat/rte_compat.h
@@ -101,5 +101,16 @@
  */
 #endif
 
+#ifndef ALLOW_EXPERIMENTAL_API
 
+#define __rte_experimental \
+__attribute__((deprecated("Symbol is not yet part of stable ABI"), \
+section(".text.experimental")))
+
+#else
+
+#define __rte_experimental \
+__attribute__((section(".text.experimental")))
+
+#endif
 #endif /* _RTE_COMPAT_H_ */
-- 
2.14.3