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      1 /*	$NetBSD: kprintf.h,v 1.13 2019/01/07 13:09:47 martin 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 #define	NOTSTAMP	0x2000	/* no time stamp on console */
     59 
     60 void	kprintf_init(void);
     61 void	kprintf_init_callout(void);
     62 void	kprintf_lock(void);
     63 void	kprintf_unlock(void);
     64 /*
     65  * NOTE: the kprintf mutex must be held when these functions are called!
     66  */
     67 int	kprintf(const char *, int, void *, char *, va_list);
     68 void	klogpri(int);
     69 
     70 #endif /* _SYS_KPRINTF_H_ */
     71