1 /* $OpenBSD: aa.c,v 1.1.1.1 2005/09/23 18:58:07 kurt Exp $ */ 2 3 /* 4 * Copyright (c) 2005 Kurt Miller <kurt@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 void undefinedWeakSymbol(void) __attribute__((weak)); 20 21 /* 22 * aaTest is not called. It just refers to undefinedWeakSymbol 23 * so it is not optimized away. 24 */ 25 void 26 aaTest() 27 { 28 if (undefinedWeakSymbol != 0) 29 undefinedWeakSymbol(); 30 } 31