rtld: Implement ELF filters (DT_FILTER and DT_AUXILIARY)
[dragonfly.git] / libexec / rtld-elf / debug.h
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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 *
f4f4bfd5 25 * $FreeBSD$
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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
44extern void debug_printf(const char *, ...) __printflike(1, 2);
45extern int debug;
46
47#ifdef DEBUG
fcf53d9b 48#define dbg(...) debug_printf(__VA_ARGS__)
984263bc 49#else
fcf53d9b 50#define dbg(...) ((void) 0)
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51#endif
52
fcf53d9b 53#define _MYNAME "ld-elf.so.2"
984263bc 54#define assert(cond) ((cond) ? (void) 0 : \
fcf53d9b 55 (msg(_MYNAME ": assert failed: " __FILE__ ":" \
984263bc 56 __XSTRING(__LINE__) "\n"), abort()))
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57#define msg(s) write(STDOUT_FILENO, s, strlen(s))
58#define trace() msg(_MYNAME ": " __XSTRING(__LINE__) "\n")
59
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60
61#endif /* DEBUG_H */