1 /* The meat of this file is a copy of the FreeBSD sys/link_set.h */ 2 /* 3 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4 * 5 * Copyright (c) 1999 John D. Polstra 6 * Copyright (c) 1999,2001 Peter Wemm <peter@FreeBSD.org> 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <stdio.h> 34 #include <sys/linker_set.h> 35 36 struct foo { 37 char buf[128]; 38 }; 39 40 SET_DECLARE(foo, struct foo); 41 42 struct foo a = { "foo" }; 43 struct foo b = { "bar" }; 44 struct foo c = { "baz" }; 45 46 SET_ENTRY(foo, a); 47 SET_ENTRY(foo, b); 48 SET_ENTRY(foo, c); 49 50 int 51 main(int __attribute__((unused)) argc, char __attribute__((unused)) **argv) 52 { 53 struct foo **c; 54 int i = 0; 55 56 printf("Set count: %d\n", (int)SET_COUNT(foo)); 57 58 59 printf("a: %s\n", ((struct foo *)__set_foo_sym_a)->buf); 60 printf("b: %s\n", ((struct foo *)__set_foo_sym_b)->buf); 61 printf("c: %s\n", ((struct foo *)__set_foo_sym_c)->buf); 62 63 printf("item(foo, 0): %s\n", SET_ITEM(foo, 0)->buf); 64 printf("item(foo, 1): %s\n", SET_ITEM(foo, 1)->buf); 65 printf("item(foo, 2): %s\n", SET_ITEM(foo, 2)->buf); 66 67 SET_FOREACH(c, foo) { 68 printf("foo[%d]: %s\n", i, (*c)->buf); 69 i++; 70 } 71 72 return (0); 73 } 74