eal: simplify meson build of common directory

[dpdk.git] / lib / librte_eal / common / include / rte_compat.h

diff --git a/lib/librte_eal/common/include/rte_compat.h b/lib/librte_eal/common/include/rte_compat.h
index 92ff28f..3eb3378 100644 (file)
--- a/lib/librte_eal/common/include/rte_compat.h
+++ b/lib/librte_eal/common/include/rte_compat.h
@@ -5,76 +5,6 @@
 
 #ifndef _RTE_COMPAT_H_
 #define _RTE_COMPAT_H_
-#include <rte_common.h>
-
-#ifdef RTE_BUILD_SHARED_LIB
-
-/*
- * Provides backwards compatibility when updating exported functions.
- * When a symol is exported from a library to provide an API, it also provides a
- * calling convention (ABI) that is embodied in its name, return type,
- * arguments, etc.  On occasion that function may need to change to accommodate
- * new functionality, behavior, etc.  When that occurs, it is desirable to
- * allow for backwards compatibility for a time with older binaries that are
- * dynamically linked to the dpdk.  To support that, the __vsym and
- * VERSION_SYMBOL macros are created.  They, in conjunction with the
- * <library>_version.map file for a given library allow for multiple versions of
- * a symbol to exist in a shared library so that older binaries need not be
- * immediately recompiled.
- *
- * Refer to the guidelines document in the docs subdirectory for details on the
- * use of these macros
- */
-
-/*
- * Macro Parameters:
- * b - function base name
- * e - function version extension, to be concatenated with base name
- * n - function symbol version string to be applied
- * f - function prototype
- * p - full function symbol name
- */
-
-/*
- * VERSION_SYMBOL
- * Creates a symbol version table entry binding symbol <b>@DPDK_<n> to the internal
- * function name <b>_<e>
- */
-#define VERSION_SYMBOL(b, e, n) __asm__(".symver " RTE_STR(b) RTE_STR(e) ", " RTE_STR(b) "@DPDK_" RTE_STR(n))
-
-/*
- * BIND_DEFAULT_SYMBOL
- * Creates a symbol version entry instructing the linker to bind references to
- * symbol <b> to the internal symbol <b>_<e>
- */
-#define BIND_DEFAULT_SYMBOL(b, e, n) __asm__(".symver " RTE_STR(b) RTE_STR(e) ", " RTE_STR(b) "@@DPDK_" RTE_STR(n))
-#define __vsym __attribute__((used))
-
-/*
- * MAP_STATIC_SYMBOL
- * If a function has been bifurcated into multiple versions, none of which
- * are defined as the exported symbol name in the map file, this macro can be
- * used to alias a specific version of the symbol to its exported name.  For
- * example, if you have 2 versions of a function foo_v1 and foo_v2, where the
- * former is mapped to foo@DPDK_1 and the latter is mapped to foo@DPDK_2 when
- * building a shared library, this macro can be used to map either foo_v1 or
- * foo_v2 to the symbol foo when building a static library, e.g.:
- * MAP_STATIC_SYMBOL(void foo(), foo_v2);
- */
-#define MAP_STATIC_SYMBOL(f, p)
-
-#else
-/*
- * No symbol versioning in use
- */
-#define VERSION_SYMBOL(b, e, n)
-#define __vsym
-#define BIND_DEFAULT_SYMBOL(b, e, n)
-#define MAP_STATIC_SYMBOL(f, p) f __attribute__((alias(RTE_STR(p))))
-/*
- * RTE_BUILD_SHARED_LIB=n
- */
-#endif
 
 #ifndef ALLOW_EXPERIMENTAL_API