[src/trunk]: src/sys/sys Add protected visibility marker for things that we w...

[joerg <joerg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ba5d824874ad
branches:  trunk
changeset: 786521:ba5d824874ad
user:      joerg <joerg%NetBSD.org@localhost>
date:      Tue Apr 30 14:45:15 2013 +0000

description:
Add protected visibility marker for things that we want to keep public
for historical ABI issues, but that are not allowed to be overriden.

diffstat:

 sys/sys/cdefs.h |  4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diffs (25 lines):

diff -r 0b68e200e8bd -r ba5d824874ad sys/sys/cdefs.h
--- a/sys/sys/cdefs.h   Tue Apr 30 14:28:52 2013 +0000
+++ b/sys/sys/cdefs.h   Tue Apr 30 14:45:15 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cdefs.h,v 1.105 2013/01/29 01:23:12 gdt Exp $  */
+/*     $NetBSD: cdefs.h,v 1.106 2013/04/30 14:45:15 joerg Exp $        */
 
 /*
  * Copyright (c) 1991, 1993
@@ -281,6 +281,7 @@
 #if __GNUC_PREREQ__(4, 0)
 #  define __dso_public __attribute__((__visibility__("default")))
 #  define __dso_hidden __attribute__((__visibility__("hidden")))
+#  define __dso_protected      __attribute__((__visibility__("protected")))
 #  define __BEGIN_PUBLIC_DECLS \
        _Pragma("GCC visibility push(default)") __BEGIN_EXTERN_C
 #  define __END_PUBLIC_DECLS   __END_EXTERN_C _Pragma("GCC visibility pop")
@@ -289,6 +290,7 @@
 #  define __END_HIDDEN_DECLS   __END_EXTERN_C _Pragma("GCC visibility pop")
 #else
 #  define __dso_public
+#  define __dso_protected
 #  define __dso_hidden
 #  define __BEGIN_PUBLIC_DECLS __BEGIN_EXTERN_C
 #  define __END_PUBLIC_DECLS   __END_EXTERN_C