FreeBSD/Linux Kernel Cross Reference
sys/sys/systm.h

     /*-
      * Copyright (c) 1982, 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. 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.
     *
     *      @(#)systm.h     8.7 (Berkeley) 3/29/95
     * $FreeBSD: src/sys/sys/systm.h,v 1.47.2.4 1999/09/05 08:23:02 peter Exp $
     */
    
    #ifndef _SYS_SYSTM_H_
    #define _SYS_SYSTM_H_
    
    #include <machine/cpufunc.h>
    
    extern int securelevel;         /* system security level (see init(8)) */
    
    extern int cold;                /* nonzero if we are doing a cold boot */
    extern const char *panicstr;    /* panic message */
    extern char version[];          /* system version */
    extern char copyright[];        /* system copyright */
    
    extern int nblkdev;             /* number of entries in bdevsw */
    extern int nchrdev;             /* number of entries in cdevsw */
    extern struct swdevt *swdevt;   /* swap-device information */
    extern int nswdev;              /* number of swap devices */
    extern int nswap;               /* size of swap space */
    
    extern int selwait;             /* select timeout address */
    
    extern u_char curpriority;      /* priority of current process */
    
    extern int physmem;             /* physical memory */
    
    extern dev_t dumpdev;           /* dump device */
    extern long dumplo;             /* offset into dumpdev */
    
    extern dev_t rootdev;           /* root device */
    extern struct vnode *rootvp;    /* vnode equivalent to above */
    
    extern dev_t swapdev;           /* swapping device */
    extern struct vnode *swapdev_vp;/* vnode equivalent to above */
    
    extern int boothowto;           /* reboot flags, from console subsystem */
    extern int bootverbose;         /* nonzero to print verbose messages */
    
    /*
     * General function declarations.
     */
    void    Debugger __P((const char *msg));
    int     nullop __P((void));
    int     eopnotsupp __P((void));
    int     einval __P((void));
    int     seltrue __P((dev_t dev, int which, struct proc *p));
    int     ureadc __P((int, struct uio *));
    void    *hashinit __P((int count, int type, u_long *hashmask));
    void    *phashinit __P((int count, int type, u_long *nentries));
    
    void    panic __P((const char *, ...)) __dead2;
    void    boot __P((int)) __dead2;
    void    cpu_boot __P((int));
    void    cpu_rootconf __P((void));
    void    cpu_dumpconf __P((void));
    void    tablefull __P((const char *));
    int     addlog __P((const char *, ...));
    int     kvprintf __P((char const *, void (*)(int, void*), void *, int,
                          _BSD_VA_LIST_));
    void    log __P((int, const char *, ...));
   int     printf __P((const char *, ...));
   int     sprintf __P((char *buf, const char *, ...));
   void    uprintf __P((const char *, ...));
   void    vprintf __P((const char *, _BSD_VA_LIST_));
   void    ttyprintf __P((struct tty *, const char *, ...));
   
   void    bcopy __P((const void *from, void *to, size_t len));
   void    ovbcopy __P((const void *from, void *to, size_t len));
   extern void     (*bzero) __P((void *buf, size_t len));
   
   void    *memcpy __P((void *to, const void *from, size_t len));
   
   int     copystr __P((const void *kfaddr, void *kdaddr, size_t len,
                   size_t *lencopied));
   int     copyinstr __P((const void *udaddr, void *kaddr, size_t len,
                   size_t *lencopied));
   int     copyin __P((const void *udaddr, void *kaddr, size_t len));
   int     copyout __P((const void *kaddr, void *udaddr, size_t len));
   
   int     fubyte __P((const void *base));
   int     fuibyte __P((const void *base));
   int     subyte __P((void *base, int byte));
   int     suibyte __P((void *base, int byte));
   int     fuword __P((const void *base));
   int     suword __P((void *base, int word));
   int     susword __P((void *base, int word));
   
   int     hzto __P((struct timeval *tv));
   void    realitexpire __P((void *));
   
   struct clockframe;
   void    hardclock __P((struct clockframe *frame));
   void    softclock __P((void));
   void    statclock __P((struct clockframe *frame));
   
   void    startprofclock __P((struct proc *));
   void    stopprofclock __P((struct proc *));
   void    setstatclockrate __P((int hzrate));
   
   void    hardupdate __P((long));
   void    hardpps __P((struct timeval *tvp, long usec));
   
   #include <sys/libkern.h>
   
   /* Initialize the world */
   extern void consinit(void);
   extern void usrinfoinit(void);
   extern void cpu_initclocks(void);
   extern void vntblinit(void);
   extern void nchinit(void);
   
   /* Finalize the world. */
   void    shutdown_nice __P((void));
   
   /*
    * Kernel to clock driver interface.
    */
   void    inittodr __P((time_t base));
   void    resettodr __P((void));
   void    startrtclock __P((void));
   
   /* Timeouts */
   typedef void (timeout_t)(void *); /* actual timeout function type */
   typedef timeout_t *timeout_func_t; /* a pointer to this type */
   
   void timeout(timeout_func_t, void *, int);
   void untimeout(timeout_func_t, void *);
   void    logwakeup __P((void));
   
   /* Various other callout lists that modules might want to know about */
   /* shutdown callout list definitions */
   typedef void (*bootlist_fn)(int,void *);
   int at_shutdown(bootlist_fn function, void *arg, int);
   int rm_at_shutdown(bootlist_fn function, void *arg);
   #define SHUTDOWN_PRE_SYNC 0
   #define SHUTDOWN_POST_SYNC 1
   
   /* forking */ /* XXX not yet */
   typedef void (*forklist_fn)(struct proc *parent,struct proc *child,int flags);
   int at_fork(forklist_fn function);
   int rm_at_fork(forklist_fn function);
   
   /* exiting */
   typedef void (*exitlist_fn)(struct proc *procp);
   int at_exit(exitlist_fn function);
   int rm_at_exit(exitlist_fn function);
   
   /* Not exactly a callout LIST, but a callout entry..                    */
   /* Allow an external module to define a hardware watchdog tickler       */
   /* Normally a process would do this, but there are times when the       */
   /* kernel needs to be able to hold off the watchdog, when the process   */
   /* is not active, e.g. when dumping core. Costs us a whole 4 bytes to   */
   /* make this generic. the variable is in kern_shutdown.c */
   typedef void (*watchdog_tickle_fn)(void);
   extern watchdog_tickle_fn wdog_tickler;
   
   
   /* 
    * Common `proc' functions are declared here so that proc.h can be included
    * less often.
    */
   int     tsleep __P((void *chan, int pri, char *wmesg, int timo));
   void    wakeup __P((void *chan));
   
   #endif /* !_SYS_SYSTM_H_ */

Cache object: 9b6e22db703ebf2a995b479fac36d457