xref: /netbsd-src/lib/csu/common/csu-common.h (revision a88bd0da1896adabdef4c2097076c41fa16ee4f9)
1c510faceSchristos /*-
2c510faceSchristos  * Copyright (c) 2021 The NetBSD Foundation, Inc.
3c510faceSchristos  * All rights reserved.
4c510faceSchristos  *
5c510faceSchristos  * Redistribution and use in source and binary forms, with or without
6c510faceSchristos  * modification, are permitted provided that the following conditions
7c510faceSchristos  * are met:
8c510faceSchristos  * 1. Redistributions of source code must retain the above copyright
9c510faceSchristos  *    notice, this list of conditions and the following disclaimer.
10c510faceSchristos  * 2. Redistributions in binary form must reproduce the above copyright
11c510faceSchristos  *    notice, this list of conditions and the following disclaimer in the
12c510faceSchristos  *    documentation and/or other materials provided with the distribution.
13c510faceSchristos  *
14c510faceSchristos  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
15c510faceSchristos  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
16c510faceSchristos  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17c510faceSchristos  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
18c510faceSchristos  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19c510faceSchristos  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20c510faceSchristos  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21c510faceSchristos  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22c510faceSchristos  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23c510faceSchristos  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24c510faceSchristos  * POSSIBILITY OF SUCH DAMAGE.
25c510faceSchristos  */
26c510faceSchristos 
27c510faceSchristos /*
28c510faceSchristos  * For historical reasons the following symbols are defined both in libc
29c510faceSchristos  * and csu and need to be common
30c510faceSchristos  */
31c510faceSchristos #if __has_attribute(__common__)
32c510faceSchristos #define	__common	__attribute((__common__))
33c510faceSchristos #else
34c510faceSchristos #define	__common
35c510faceSchristos #endif
36c510faceSchristos extern char *__progname __common;
37c510faceSchristos extern char **environ __common;
38c510faceSchristos extern struct ps_strings *__ps_strings __common;
39*a88bd0daSchristos 
40*a88bd0daSchristos void    _libc_init(void) __attribute__((__constructor__, __used__));
41