compat: provide experimental alias for matured ABI

[dpdk.git] / lib / librte_eal / include / rte_function_versioning.h

diff --git a/lib/librte_eal/include/rte_function_versioning.h b/lib/librte_eal/include/rte_function_versioning.h
index b9f862d..f588f26 100644 (file)
--- a/lib/librte_eal/include/rte_function_versioning.h
+++ b/lib/librte_eal/include/rte_function_versioning.h
@@ -46,6 +46,14 @@
  */
 #define VERSION_SYMBOL(b, e, n) __asm__(".symver " RTE_STR(b) RTE_STR(e) ", " RTE_STR(b) "@DPDK_" RTE_STR(n))
 
+/*
+ * VERSION_SYMBOL_EXPERIMENTAL
+ * Creates a symbol version table entry binding the symbol <b>@EXPERIMENTAL to the internal
+ * function name <b><e>. The macro is used when a symbol matures to become part of the stable ABI,
+ * to provide an alias to experimental for some time.
+ */
+#define VERSION_SYMBOL_EXPERIMENTAL(b, e) __asm__(".symver " RTE_STR(b) RTE_STR(e) ", " RTE_STR(b) "@EXPERIMENTAL")
+
 /*
  * BIND_DEFAULT_SYMBOL
  * Creates a symbol version entry instructing the linker to bind references to
@@ -79,6 +87,7 @@
  * No symbol versioning in use
  */
 #define VERSION_SYMBOL(b, e, n)
+#define VERSION_SYMBOL_EXPERIMENTAL(b, e)
 #define __vsym
 #define BIND_DEFAULT_SYMBOL(b, e, n)
 #define MAP_STATIC_SYMBOL(f, p) f __attribute__((alias(RTE_STR(p))))