1 /* $OpenBSD: namespace.h,v 1.1 2016/04/02 19:56:53 guenther Exp $ */ 2 3 #ifndef _LIBPTHREAD_NAMESPACE_H_ 4 #define _LIBPTHREAD_NAMESPACE_H_ 5 6 /* 7 * Copyright (c) 2016 Philip Guenther <guenther@openbsd.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 #include <sys/cdefs.h> /* for __dso_hidden and __strong_alias */ 23 24 #ifndef PIC 25 # define WEAK_IN_STATIC_ALIAS(x,y) __weak_alias(x,y) 26 # define WEAK_IN_STATIC __attribute__((weak)) 27 #else 28 # define WEAK_IN_STATIC_ALIAS(x,y) __strong_alias(x,y) 29 # define WEAK_IN_STATIC /* nothing */ 30 #endif 31 32 #define HIDDEN(x) _libpthread_##x 33 #define HIDDEN_STRING(x) "_libpthread_" __STRING(x) 34 35 #define PROTO_NORMAL(x) __dso_hidden typeof(x) x asm(HIDDEN_STRING(x)) 36 #define PROTO_STD_DEPRECATED(x) typeof(x) x __attribute__((deprecated)) 37 #define PROTO_DEPRECATED(x) PROTO_STD_DEPRECATED(x) WEAK_IN_STATIC 38 39 #define DEF_STD(x) __strong_alias(x, HIDDEN(x)) 40 #define DEF_NONSTD(x) WEAK_IN_STATIC_ALIAS(x, HIDDEN(x)) 41 42 #endif /* _LIBPTHREAD_NAMESPACE_H_ */ 43 44