/*-
* 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
* $FreeBSD$
*/
#ifndef _SYS_SYSTM_H_
#define _SYS_SYSTM_H_
#include <machine/atomic.h>
#include <machine/cpufunc.h>
#include <sys/callout.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 int dumping; /* system is dumping */
extern char version[]; /* system version */
extern char copyright[]; /* system copyright */
extern int nswap; /* size of swap space */
extern int selwait; /* select timeout address */
extern int physmem; /* physical memory */
extern dev_t dumpdev; /* dump device */
extern long dumplo; /* offset into dumpdev */
extern dev_t rootdev; /* root device */
extern dev_t rootdevs[2]; /* possible root devices */
extern char *rootdevnames[2]; /* names of possible root devices */
extern struct vnode *rootvp; /* vnode equivalent to above */
extern int boothowto; /* reboot flags, from console subsystem */
extern int bootverbose; /* nonzero to print verbose messages */
#ifdef INVARIANTS /* The option is always available */
#define KASSERT(exp,msg) do { if (!(exp)) panic msg; } while (0)
#else
#define KASSERT(exp,msg)
#endif
/*
* General function declarations.
*/
struct clockframe;
struct malloc_type;
struct mtx;
struct proc;
struct timeval;
struct tty;
struct ucred;
struct uio;
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, struct malloc_type *type, u_long *hashmask));
void *phashinit __P((int count, struct malloc_type *type, u_long *nentries));
void cpu_boot __P((int));
void cpu_rootconf __P((void));
void tablefull __P((const char *));
int kvprintf __P((char const *, void (*)(int, void*), void *, int,
_BSD_VA_LIST_)) __printflike(1, 0);
void log __P((int, const char *, ...)) __printflike(2, 3);
void log_console __P((struct uio *));
int printf __P((const char *, ...)) __printflike(1, 2);
int snprintf __P((char *, size_t, const char *, ...)) __printflike(3, 4);
int sprintf __P((char *buf, const char *, ...)) __printflike(2, 3);
int uprintf __P((const char *, ...)) __printflike(1, 2);
int vprintf __P((const char *, _BSD_VA_LIST_)) __printflike(1, 0);
int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_)) __printflike(3, 0);
int vsprintf __P((char *buf, const char *, _BSD_VA_LIST_)) __printflike(2, 0);
int ttyprintf __P((struct tty *, const char *, ...)) __printflike(2, 3);
int sscanf __P((const char *, char const *, ...));
int vsscanf __P((const char *, char const *, _BSD_VA_LIST_));
long strtol __P((const char *, char **, int));
u_long strtoul __P((const char *, char **, int));
quad_t strtoq __P((const char *, char **, int));
u_quad_t strtouq __P((const char *, char **, int));
void tprintf __P((struct proc *p, int pri, const char *, ...)) __printflike(3, 4);
void bcopy __P((const void *from, void *to, size_t len));
void ovbcopy __P((const void *from, void *to, size_t len));
#ifdef __i386__
extern void (*bzero) __P((void *buf, size_t len));
#else
void bzero __P((void *buf, size_t len));
#endif
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 subyte __P((void *base, int byte));
int suibyte __P((void *base, int byte));
long fuword __P((const void *base));
int suword __P((void *base, long word));
int fusword __P((void *base));
int susword __P((void *base, int word));
void realitexpire __P((void *));
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));
/* flags for suser_xxx() */
#define PRISON_ROOT 1
int suser __P((struct proc *));
int suser_xxx __P((struct ucred *cred, struct proc *proc, int flag));
char *getenv __P((char *name));
int getenv_int __P((char *name, int *data));
quad_t getenv_quad __P((char *name, quad_t *data));
extern char *kern_envp;
#ifdef APM_FIXUP_CALLTODO
void adjust_timeout_calltodo __P((struct timeval *time_change));
#endif /* APM_FIXUP_CALLTODO */
#include <sys/libkern.h>
/* Initialize the world */
void consinit __P((void));
void cpu_initclocks __P((void));
void usrinfoinit __P((void));
/* Finalize the world. */
void shutdown_nice __P((int));
/*
* Kernel to clock driver interface.
*/
void inittodr __P((time_t base));
void resettodr __P((void));
void startrtclock __P((void));
/* Timeouts */
typedef void timeout_t __P((void *)); /* timeout function type */
#define CALLOUT_HANDLE_INITIALIZER(handle) \
{ NULL }
void callout_handle_init __P((struct callout_handle *));
struct callout_handle timeout __P((timeout_t *, void *, int));
void untimeout __P((timeout_t *, void *, struct callout_handle));
/* Stubs for obsolete functions that used to be for interrupt management */
static __inline void spl0(void) { return; }
static __inline intrmask_t splbio(void) { return 0; }
static __inline intrmask_t splcam(void) { return 0; }
static __inline intrmask_t splclock(void) { return 0; }
static __inline intrmask_t splhigh(void) { return 0; }
static __inline intrmask_t splimp(void) { return 0; }
static __inline intrmask_t splnet(void) { return 0; }
static __inline intrmask_t splsoftcam(void) { return 0; }
static __inline intrmask_t splsoftclock(void) { return 0; }
static __inline intrmask_t splsofttty(void) { return 0; }
static __inline intrmask_t splsoftvm(void) { return 0; }
static __inline intrmask_t splsofttq(void) { return 0; }
static __inline intrmask_t splstatclock(void) { return 0; }
static __inline intrmask_t spltty(void) { return 0; }
static __inline intrmask_t splvm(void) { return 0; }
static __inline void splx(intrmask_t ipl) { return; }
/*
* Various callout lists.
*/
/* Exit callout list declarations. */
typedef void (*exitlist_fn) __P((struct proc *procp));
int at_exit __P((exitlist_fn function));
int rm_at_exit __P((exitlist_fn function));
/* Fork callout list declarations. */
typedef void (*forklist_fn) __P((struct proc *parent, struct proc *child,
int flags));
int at_fork __P((forklist_fn function));
int rm_at_fork __P((forklist_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.
*/
typedef void (*watchdog_tickle_fn) __P((void));
extern watchdog_tickle_fn wdog_tickler;
/*
* Common `proc' functions are declared here so that proc.h can be included
* less often.
*/
int msleep __P((void *chan, struct mtx *mtx, int pri, const char *wmesg,
int timo));
#define tsleep(chan, pri, wmesg, timo) msleep(chan, NULL, pri, wmesg, timo)
int asleep __P((void *chan, int pri, const char *wmesg, int timo));
#define await(pri, timo) mawait(NULL, pri, timo)
int mawait __P((struct mtx *mtx, int pri, int timo));
void wakeup __P((void *chan));
void wakeup_one __P((void *chan));
/*
* Common `dev_t' stuff are declared here to avoid #include poisoning
*/
int major(dev_t x);
int minor(dev_t x);
dev_t makedev(int x, int y);
udev_t dev2udev(dev_t x);
dev_t udev2dev(udev_t x, int b);
int uminor(udev_t dev);
int umajor(udev_t dev);
udev_t makeudev(int x, int y);
/* XXX: Should be void nanodelay(u_int nsec); */
void DELAY __P((int usec));
#endif /* !_SYS_SYSTM_H_ */
