xref: /openbsd-src/lib/libssl/hidden/ssl_namespace.h (revision a8d65a3f56d3a0ce3a4896b81833569012f87a21)
1*a8d65a3fSmiod /*	$OpenBSD: ssl_namespace.h,v 1.3 2024/07/12 05:26:34 miod Exp $	*/
2ec6848bcSbeck /*
3ec6848bcSbeck  * Copyright (c) 2016 Philip Guenther <guenther@openbsd.org>
4ec6848bcSbeck  *
5ec6848bcSbeck  * Permission to use, copy, modify, and distribute this software for any
6ec6848bcSbeck  * purpose with or without fee is hereby granted, provided that the above
7ec6848bcSbeck  * copyright notice and this permission notice appear in all copies.
8ec6848bcSbeck  *
9ec6848bcSbeck  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10ec6848bcSbeck  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11ec6848bcSbeck  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12ec6848bcSbeck  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13ec6848bcSbeck  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14ec6848bcSbeck  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15ec6848bcSbeck  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16ec6848bcSbeck  */
17ec6848bcSbeck 
18ec6848bcSbeck #ifndef _LIBSSL_SSL_NAMESPACE_H_
19ec6848bcSbeck #define _LIBSSL_SSL_NAMESPACE_H_
20ec6848bcSbeck 
21ec6848bcSbeck /*
22ec6848bcSbeck  * If marked as 'used', then internal calls use the name with prefix "_lssl_"
23ec6848bcSbeck  * and we alias that to the normal name.
24ec6848bcSbeck  */
25ec6848bcSbeck 
26ec6848bcSbeck #ifdef LIBRESSL_NAMESPACE
27ec6848bcSbeck #define LSSL_UNUSED(x)		typeof(x) x __attribute__((deprecated))
28ec6848bcSbeck #define LSSL_USED(x)		__attribute__((visibility("hidden")))	\
29ec6848bcSbeck 				typeof(x) x asm("_lssl_"#x)
30*a8d65a3fSmiod #if defined(__hppa__)
31*a8d65a3fSmiod #define LSSL_ALIAS(x)		asm("! .global "#x" ! .set "#x", _lssl_"#x)
32*a8d65a3fSmiod #else
33cedac418Stb #define LSSL_ALIAS(x)		asm(".global "#x"; "#x" = _lssl_"#x)
34*a8d65a3fSmiod #endif
35ec6848bcSbeck #else
36ec6848bcSbeck #define LSSL_UNUSED(x)
37ec6848bcSbeck #define LSSL_USED(x)
38cedac418Stb #define LSSL_ALIAS(x)		asm("")
39ec6848bcSbeck #endif
40ec6848bcSbeck 
41ec6848bcSbeck #endif	/* _LIBSSL_SSL_NAMESPACE_H_ */
42