1/* $NetBSD: kprintf.h,v 1.12 2014/08/10 16:44:36 tls Exp $ */
2
3/*-
4 * Copyright (c) 1986, 1988, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#ifndef _SYS_KPRINTF_H_
38#define _SYS_KPRINTF_H_
39
40#include <sys/stdarg.h>
41
42/*
43 * Implementation internals of the kernel printf. Exposing them here
44 * allows other subsystems to implement precisely the printf semantics
45 * they need.
46 */
47
48/* max size buffer kprintf needs to print quad_t [size in base 8 + \0] */
49#define KPRINTF_BUFSIZE (sizeof(quad_t) * NBBY / 3 + 2)
50
51/* flags for kprintf */
52#define TOCONS 0x0001 /* to the console */
53#define TOTTY 0x0002 /* to the process' tty */
54#define TOLOG 0x0004 /* to the kernel message buffer */
55#define TOBUFONLY 0x0008 /* to the buffer (only) [for snprintf] */
56#define TODDB 0x0010 /* to ddb console */
57#define NOLOCK 0x1000 /* don't acquire a tty lock */
58
59void kprintf_init(void);
60void kprintf_init_callout(void);
61void kprintf_lock(void);
62void kprintf_unlock(void);
63/*
64 * NOTE: the kprintf mutex must be held when these functions are called!
65 */
66int kprintf(const char *, int, void *, char *, va_list);
67void klogpri(int);
68
69#endif /* _SYS_KPRINTF_H_ */
70