[src/trunk]: src/sys/sys don't propagate __read_mostly and __cacheline_aligne...

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

details:   https://anonhg.NetBSD.org/src/rev/3a43e8fef6aa
branches:  trunk
changeset: 756007:3a43e8fef6aa
user:      cegger <cegger%NetBSD.org@localhost>
date:      Fri Jul 02 11:38:20 2010 +0000

description:
don't propagate __read_mostly and __cacheline_aligned to userland.
Uncovered by Xen build failures. Xen includes this header
through <stdarg.h>, but COHERENCY_UNIT is undefined.

'this fix should be done in HEAD' mjf@

diffstat:

 sys/sys/cdefs_elf.h |  7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diffs (26 lines):

diff -r 60a3b0fb6118 -r 3a43e8fef6aa sys/sys/cdefs_elf.h
--- a/sys/sys/cdefs_elf.h       Fri Jul 02 10:45:16 2010 +0000
+++ b/sys/sys/cdefs_elf.h       Fri Jul 02 11:38:20 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cdefs_elf.h,v 1.31 2010/06/01 22:13:30 mjf Exp $       */
+/*     $NetBSD: cdefs_elf.h,v 1.32 2010/07/02 11:38:20 cegger Exp $    */
 
 /*
  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
@@ -160,6 +160,9 @@
 #define        __link_set_count(set)                                           \
        (__link_set_end(set) - __link_set_start(set))
 
+
+#ifdef _KERNEL
+
 /*
  * On multiprocessor systems we can gain an improvement in performance
  * by being mindful of which cachelines data is placed in.
@@ -194,4 +197,6 @@
     __attribute__((__aligned__(COHERENCY_UNIT)                 \
                 __section__(".data.cacheline_aligned")))
 
+#endif /* _KERNEL */
+
 #endif /* !_SYS_CDEFS_ELF_H_ */