306 lines
11 KiB
C
306 lines
11 KiB
C
/*-
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* Copyright (c) 1982, 1988, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)systm.h 8.7 (Berkeley) 3/29/95
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* $FreeBSD$
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*/
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#ifndef _SYS_SYSTM_H_
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#define _SYS_SYSTM_H_
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#include <machine/atomic.h>
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#include <machine/cpufunc.h>
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#include <sys/callout.h>
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extern int securelevel; /* system security level (see init(8)) */
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extern int cold; /* nonzero if we are doing a cold boot */
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extern const char *panicstr; /* panic message */
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extern int safepri; /* safe ipl when cold or panicing */
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extern char version[]; /* system version */
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extern char copyright[]; /* system copyright */
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extern int nswap; /* size of swap space */
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extern int selwait; /* select timeout address */
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extern u_char curpriority; /* priority of current process */
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extern int physmem; /* physical memory */
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extern dev_t dumpdev; /* dump device */
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extern long dumplo; /* offset into dumpdev */
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extern dev_t rootdev; /* root device */
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extern dev_t rootdevs[2]; /* possible root devices */
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extern char *rootdevnames[2]; /* names of possible root devices */
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extern struct vnode *rootvp; /* vnode equivalent to above */
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extern int boothowto; /* reboot flags, from console subsystem */
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extern int bootverbose; /* nonzero to print verbose messages */
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#ifdef INVARIANTS /* The option is always available */
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#define KASSERT(exp,msg) do { if (!(exp)) panic msg; } while (0)
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#else
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#define KASSERT(exp,msg)
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#endif
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/*
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* General function declarations.
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*/
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struct clockframe;
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struct malloc_type;
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struct proc;
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struct timeval;
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struct tty;
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struct uio;
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void Debugger __P((const char *msg));
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int nullop __P((void));
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int eopnotsupp __P((void));
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int einval __P((void));
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int seltrue __P((dev_t dev, int which, struct proc *p));
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int ureadc __P((int, struct uio *));
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void *hashinit __P((int count, struct malloc_type *type, u_long *hashmask));
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void *phashinit __P((int count, struct malloc_type *type, u_long *nentries));
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void cpu_boot __P((int));
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void cpu_rootconf __P((void));
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void tablefull __P((const char *));
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int addlog __P((const char *, ...)) __printflike(1, 2);
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int kvprintf __P((char const *, void (*)(int, void*), void *, int,
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_BSD_VA_LIST_)) __printflike(1, 0);
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int log __P((int, const char *, ...)) __printflike(2, 3);
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void logwakeup __P((void));
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int printf __P((const char *, ...)) __printflike(1, 2);
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int snprintf __P((char *, size_t, const char *, ...)) __printflike(3, 4);
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int sprintf __P((char *buf, const char *, ...)) __printflike(2, 3);
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int uprintf __P((const char *, ...)) __printflike(1, 2);
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int vprintf __P((const char *, _BSD_VA_LIST_)) __printflike(1, 0);
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int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_)) __printflike(3, 0);
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int vsprintf __P((char *buf, const char *, _BSD_VA_LIST_)) __printflike(2, 0);
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int ttyprintf __P((struct tty *, const char *, ...)) __printflike(2, 3);
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int sscanf __P((const char *, char const *, ...));
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int vsscanf __P((const char *, char const *, _BSD_VA_LIST_));
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long strtol __P((const char *, char **, int));
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u_long strtoul __P((const char *, char **, int));
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quad_t strtoq __P((const char *, char **, int));
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u_quad_t strtouq __P((const char *, char **, int));
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void bcopy __P((const void *from, void *to, size_t len));
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void ovbcopy __P((const void *from, void *to, size_t len));
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#ifdef __i386__
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extern void (*bzero) __P((void *buf, size_t len));
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#else
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void bzero __P((void *buf, size_t len));
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#endif
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void *memcpy __P((void *to, const void *from, size_t len));
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int copystr __P((const void *kfaddr, void *kdaddr, size_t len,
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size_t *lencopied));
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int copyinstr __P((const void *udaddr, void *kaddr, size_t len,
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size_t *lencopied));
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int copyin __P((const void *udaddr, void *kaddr, size_t len));
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int copyout __P((const void *kaddr, void *udaddr, size_t len));
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int fubyte __P((const void *base));
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int subyte __P((void *base, int byte));
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int suibyte __P((void *base, int byte));
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long fuword __P((const void *base));
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int suword __P((void *base, long word));
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int fusword __P((void *base));
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int susword __P((void *base, int word));
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void realitexpire __P((void *));
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void hardclock __P((struct clockframe *frame));
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void softclock __P((void));
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void statclock __P((struct clockframe *frame));
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void startprofclock __P((struct proc *));
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void stopprofclock __P((struct proc *));
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void setstatclockrate __P((int hzrate));
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char *getenv __P((char *name));
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int getenv_int __P((char *name, int *data));
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quad_t getenv_quad __P((char *name, quad_t *data));
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extern char *kern_envp;
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#ifdef APM_FIXUP_CALLTODO
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void adjust_timeout_calltodo __P((struct timeval *time_change));
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#endif /* APM_FIXUP_CALLTODO */
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#include <sys/libkern.h>
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/* Initialize the world */
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void consinit __P((void));
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void cpu_initclocks __P((void));
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void nchinit __P((void));
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void usrinfoinit __P((void));
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void vntblinit __P((void));
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/* Finalize the world. */
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void shutdown_nice __P((void));
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/*
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* Kernel to clock driver interface.
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*/
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void inittodr __P((time_t base));
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void resettodr __P((void));
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void startrtclock __P((void));
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/* Timeouts */
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typedef void timeout_t __P((void *)); /* timeout function type */
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#define CALLOUT_HANDLE_INITIALIZER(handle) \
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{ NULL }
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void callout_handle_init __P((struct callout_handle *));
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struct callout_handle timeout __P((timeout_t *, void *, int));
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void untimeout __P((timeout_t *, void *, struct callout_handle));
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/* Interrupt management */
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#ifdef __i386__
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void setdelayed __P((void));
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void setsoftast __P((void));
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void setsoftcambio __P((void));
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void setsoftcamnet __P((void));
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void setsoftclock __P((void));
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void setsoftnet __P((void));
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void setsofttty __P((void));
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void setsoftvm __P((void));
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void schedsoftcamnet __P((void));
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void schedsoftcambio __P((void));
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void schedsoftnet __P((void));
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void schedsofttty __P((void));
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void schedsoftvm __P((void));
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intrmask_t softclockpending __P((void));
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void spl0 __P((void));
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intrmask_t splbio __P((void));
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intrmask_t splcam __P((void));
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intrmask_t splclock __P((void));
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intrmask_t splhigh __P((void));
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intrmask_t splimp __P((void));
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intrmask_t splnet __P((void));
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intrmask_t splsoftcam __P((void));
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intrmask_t splsoftcambio __P((void));
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intrmask_t splsoftcamnet __P((void));
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intrmask_t splsoftclock __P((void));
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intrmask_t splsofttty __P((void));
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intrmask_t splsoftvm __P((void));
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intrmask_t splstatclock __P((void));
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intrmask_t spltty __P((void));
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intrmask_t splvm __P((void));
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void splx __P((intrmask_t ipl));
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void splz __P((void));
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#endif /* __i386__ */
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#ifdef __alpha__
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#include <machine/ipl.h>
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#endif
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/*
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* XXX It's not clear how "machine independent" these will be yet, but
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* they are used all over the place especially in pci drivers. We would
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* have to modify lots of drivers since <machine/cpufunc.h> no longer
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* implicitly causes these to be defined when it #included <machine/spl.h>
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*/
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extern intrmask_t bio_imask; /* group of interrupts masked with splbio() */
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extern intrmask_t cam_imask; /* group of interrupts masked with splcam() */
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extern intrmask_t net_imask; /* group of interrupts masked with splimp() */
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extern intrmask_t stat_imask; /* interrupts masked with splstatclock() */
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extern intrmask_t tty_imask; /* group of interrupts masked with spltty() */
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/* Read only */
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extern const intrmask_t soft_imask; /* interrupts masked with splsoft*() */
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extern const intrmask_t softnet_imask; /* interrupt masked with splnet() */
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extern const intrmask_t softtty_imask; /* interrupt masked with splsofttty() */
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/*
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* Various callout lists.
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*/
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/* Exit callout list declarations. */
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typedef void (*exitlist_fn) __P((struct proc *procp));
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int at_exit __P((exitlist_fn function));
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int rm_at_exit __P((exitlist_fn function));
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/* Fork callout list declarations. */
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typedef void (*forklist_fn) __P((struct proc *parent, struct proc *child,
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int flags));
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int at_fork __P((forklist_fn function));
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int rm_at_fork __P((forklist_fn function));
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/*
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* Not exactly a callout LIST, but a callout entry.
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* Allow an external module to define a hardware watchdog tickler.
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* Normally a process would do this, but there are times when the
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* kernel needs to be able to hold off the watchdog, when the process
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* is not active, e.g., when dumping core.
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*/
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typedef void (*watchdog_tickle_fn) __P((void));
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extern watchdog_tickle_fn wdog_tickler;
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/*
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* Common `proc' functions are declared here so that proc.h can be included
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* less often.
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*/
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int tsleep __P((void *chan, int pri, const char *wmesg, int timo));
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int asleep __P((void *chan, int pri, const char *wmesg, int timo));
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int await __P((int pri, int timo));
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void wakeup __P((void *chan));
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void wakeup_one __P((void *chan));
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/*
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* Common `dev_t' stuff are declared here to avoid #include poisoning
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*/
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int major(dev_t x);
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int minor(dev_t x);
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dev_t makedev(int x, int y);
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udev_t dev2udev(dev_t x);
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dev_t udev2dev(udev_t x, int b);
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int uminor(udev_t dev);
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int umajor(udev_t dev);
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udev_t makeudev(int x, int y);
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#endif /* !_SYS_SYSTM_H_ */
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