/*- * 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 1.84.2.4 1999/12/06 21:03:31 archie Exp $ */ #ifndef _SYS_SYSTM_H_ #define _SYS_SYSTM_H_ #include #include 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 safepri; /* safe ipl when cold or panicing */ 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 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 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 struct vnode *swapdev_vp;/* vnode for swap device */ 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 proc; struct timeval; struct tty; 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 panic __P((const char *, ...)) __dead2 __printflike(1, 2); 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 *, ...)) __printflike(1, 2); 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 logwakeup __P((void)); 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); void uprintf __P((const char *, ...)) __printflike(1, 2); void 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); void 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 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)); long fusword __P((void *base)); int susword __P((void *base, long 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)); 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 /* Initialize the world */ void consinit __P((void)); void cpu_initclocks __P((void)); void nchinit __P((void)); void usrinfoinit __P((void)); void vntblinit __P((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 __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)); /* Interrupt management */ #ifdef __i386__ void setdelayed __P((void)); void setsoftast __P((void)); void setsoftcambio __P((void)); void setsoftcamnet __P((void)); void setsoftclock __P((void)); void setsoftnet __P((void)); void setsofttty __P((void)); void setsoftvm __P((void)); void schedsoftcamnet __P((void)); void schedsoftcambio __P((void)); void schedsoftnet __P((void)); void schedsofttty __P((void)); void schedsoftvm __P((void)); intrmask_t softclockpending __P((void)); void spl0 __P((void)); intrmask_t splbio __P((void)); intrmask_t splcam __P((void)); intrmask_t splclock __P((void)); intrmask_t splhigh __P((void)); intrmask_t splimp __P((void)); intrmask_t splnet __P((void)); #ifdef SMP intrmask_t splq __P((intrmask_t mask)); #endif intrmask_t splsoftcam __P((void)); intrmask_t splsoftcambio __P((void)); intrmask_t splsoftcamnet __P((void)); intrmask_t splsoftclock __P((void)); intrmask_t splsofttty __P((void)); intrmask_t splsoftvm __P((void)); intrmask_t splstatclock __P((void)); intrmask_t spltty __P((void)); intrmask_t splvm __P((void)); void splx __P((intrmask_t ipl)); void splz __P((void)); #endif /* __i386__ */ #ifdef __alpha__ #include #endif /* * XXX It's not clear how "machine independent" these will be yet, but * they are used all over the place especially in pci drivers. We would * have to modify lots of drivers since no longer * implicitly causes these to be defined when it #included */ extern intrmask_t bio_imask; /* group of interrupts masked with splbio() */ extern intrmask_t cam_imask; /* group of interrupts masked with splcam() */ extern intrmask_t net_imask; /* group of interrupts masked with splimp() */ extern intrmask_t stat_imask; /* interrupts masked with splstatclock() */ extern intrmask_t tty_imask; /* group of interrupts masked with spltty() */ /* Read only */ extern const intrmask_t soft_imask; /* interrupts masked with splsoft*() */ extern const intrmask_t softnet_imask; /* interrupt masked with splnet() */ extern const intrmask_t softtty_imask; /* interrupt masked with splsofttty() */ /* * 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)); /* Shutdown callout list definitions and declarations. */ #define SHUTDOWN_PRE_SYNC 0 #define SHUTDOWN_POST_SYNC 1 #define SHUTDOWN_FINAL 2 #define SHUTDOWN_PRI_FIRST 0 #define SHUTDOWN_PRI_DEFAULT 10000 #define SHUTDOWN_PRI_LAST 20000 typedef void (*bootlist_fn) __P((int, void *)); int at_shutdown __P((bootlist_fn function, void *arg, int position)); int at_shutdown_pri __P((bootlist_fn function, void *arg, int position, int pri)); int rm_at_shutdown __P((bootlist_fn function, void *arg)); /* * 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 tsleep __P((void *chan, int pri, const char *wmesg, int timo)); int asleep __P((void *chan, int pri, const char *wmesg, int timo)); int await __P((int pri, int timo)); void wakeup __P((void *chan)); #endif /* !_SYS_SYSTM_H_ */