Module Name: src
Committed By: martin
Date: Sat Dec 13 19:13:25 UTC 2014
Modified Files:
src/sys/sys [netbsd-7]: cdefs_elf.h
Log Message:
Pull up following revision(s) (requested by joerg in ticket #316):
sys/sys/cdefs_elf.h: revision 1.47
Add macro to mark a symbol as weak. Use it to mark the end of a linker
set as empty linker set otherwise violate the aliasing rules of C by
presenting zero sized objects.
To generate a diff of this commit:
cvs rdiff -u -r1.44 -r1.44.2.1 src/sys/sys/cdefs_elf.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/sys/cdefs_elf.h
diff -u src/sys/sys/cdefs_elf.h:1.44 src/sys/sys/cdefs_elf.h:1.44.2.1
--- src/sys/sys/cdefs_elf.h:1.44 Tue May 13 19:58:23 2014
+++ src/sys/sys/cdefs_elf.h Sat Dec 13 19:13:25 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: cdefs_elf.h,v 1.44 2014/05/13 19:58:23 christos Exp $ */
+/* $NetBSD: cdefs_elf.h,v 1.44.2.1 2014/12/13 19:13:25 martin Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
@@ -65,6 +65,12 @@
__asm(".weak " _C_LABEL_STRING(#sym));
#if __GNUC_PREREQ__(4, 0)
+#define __weak __attribute__((__weak__))
+#else
+#define __weak
+#endif
+
+#if __GNUC_PREREQ__(4, 0)
#define __weak_reference(sym) __attribute__((__weakref__(#sym)))
#else
#define __weak_reference(sym) ; __asm(".weak " _C_LABEL_STRING(#sym))
@@ -157,7 +163,7 @@
#define __link_set_decl(set, ptype) \
extern ptype * const __link_set_start(set)[] __dso_hidden; \
- extern ptype * const __link_set_end(set)[] __dso_hidden
+ extern ptype * const __link_set_end(set)[] __weak __dso_hidden
#define __link_set_count(set) \
(__link_set_end(set) - __link_set_start(set))
