/* $NetBSD: kprintf.h,v 1.9 2008/01/04 18:21:06 ad Exp $ */ /*- * Copyright (c) 1986, 1988, 1991, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _SYS_KPRINTF_H_ #define _SYS_KPRINTF_H_ #include <sys/simplelock.h> /* * Implementation internals of the kernel printf. Exposing them here * allows other subsystems to implement precisely the printf semantics * they need. */ /* max size buffer kprintf needs to print quad_t [size in base 8 + \0] */ #define KPRINTF_BUFSIZE (sizeof(quad_t) * NBBY / 3 + 2) extern struct simplelock kprintf_slock; /* * Use cpu_simple_lock() and cpu_simple_unlock(). These are the actual * atomic locking operations, and never attempt to print debugging * information. */ #define KPRINTF_MUTEX_ENTER(s) \ do { \ (s) = splhigh(); \ __cpu_simple_lock(&kprintf_slock.lock_data); \ } while (/*CONSTCOND*/0) #define KPRINTF_MUTEX_EXIT(s) \ do { \ __cpu_simple_unlock(&kprintf_slock.lock_data); \ splx((s)); \ } while (/*CONSTCOND*/0) /* flags for kprintf */ #define TOCONS 0x0001 /* to the console */ #define TOTTY 0x0002 /* to the process' tty */ #define TOLOG 0x0004 /* to the kernel message buffer */ #define TOBUFONLY 0x0008 /* to the buffer (only) [for snprintf] */ #define TODDB 0x0010 /* to ddb console */ #define NOLOCK 0x1000 /* don't acquire a tty lock */ /* * NOTE: the kprintf mutex must be held when these functions are called! */ int kprintf(const char *, int, void *, char *, _BSD_VA_LIST_); void klogpri(int); #endif /* _SYS_KPRINTF_H_ */