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Add __strict_weak_alias(), the type-safe alternative to __weak_alias().

This commit is contained in:
dyoung 2011-08-16 23:30:24 +00:00
parent 64916d590e
commit 84360ec112
1 changed files with 9 additions and 1 deletions
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10
sys/sys/cdefs.h
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@ -1,4 +1,4 @@
/* $NetBSD: cdefs.h,v 1.86 2011/06/23 12:16:03 nonaka Exp $ */
/* $NetBSD: cdefs.h,v 1.87 2011/08/16 23:30:24 dyoung Exp $ */
/*
* Copyright (c) 1991, 1993
@ -63,6 +63,14 @@
#include <sys/cdefs_aout.h>
#endif
#ifdef __GNUC__
#define __strict_weak_alias(alias,sym) \
__unused static __typeof__(alias) *__weak_alias_##alias = &sym; \
__weak_alias(alias,sym)
#else
#define __strict_weak_alias(alias,sym) __weak_alias(alias,sym)
#endif
/*
* Optional marker for size-optimised MD calling convention.
*/