debug.h revision 287331 
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: stable/10/libexec/rtld-elf/debug.h 287331 2015-08-31 19:20:18Z emaste $
26 */
27
28/*
29 * Support for printing debugging messages.
30 */
31
32#ifndef DEBUG_H
33#define DEBUG_H 1
34
35#include <sys/cdefs.h>
36
37#include <string.h>
38#include <unistd.h>
39
40extern void debug_printf(const char *, ...) __printflike(1, 2);
41extern int debug;
42
43#ifdef DEBUG
44#define dbg(...)	debug_printf(__VA_ARGS__)
45#else
46#define dbg(...)	((void) 0)
47#endif
48
49#ifndef COMPAT_32BIT
50#define _MYNAME	"ld-elf.so.1"
51#else
52#define _MYNAME	"ld-elf32.so.1"
53#endif
54
55#define assert(cond)	((cond) ? (void) 0 :		\
56    (msg(_MYNAME ": assert failed: " __FILE__ ":"	\
57      __XSTRING(__LINE__) "\n"), abort()))
58#define msg(s)		write(STDOUT_FILENO, s, strlen(s))
59#define trace()		msg(_MYNAME ": " __XSTRING(__LINE__) "\n")
60
61
62#endif /* DEBUG_H */
63