1 /*- 2 * Copyright 1996-1998 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 /* 29 * Support for printing debugging messages. 30 */ 31 32 #ifndef DEBUG_H 33 #define DEBUG_H 1 34 35 #ifndef __GNUC__ 36 #error "This file must be compiled with GCC" 37 #endif 38 39 #include <sys/cdefs.h> 40 41 #include <string.h> 42 #include <unistd.h> 43 44 extern void debug_printf(const char *, ...) __printflike(1, 2); 45 extern int debug; 46 47 #ifdef DEBUG 48 #define dbg(format, args...) debug_printf(format , ## args) 49 #else 50 #define dbg(format, args...) ((void) 0) 51 #endif 52 53 #define assert(cond) ((cond) ? (void) 0 : \ 54 (msg("ld-elf.so.1: assert failed: " __FILE__ ":" \ 55 __XSTRING(__LINE__) "\n"), abort())) 56 #define msg(s) write(STDOUT_FILENO, s, strlen(s)) 57 #define trace() msg("ld-elf.so.1: " __XSTRING(__LINE__) "\n") 58 59 #endif /* DEBUG_H */ 60