1 /*- 2 * Copyright (c) 1982, 1988, 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)systm.h 7.18 (Berkeley) 11/01/91 8 */ 9 10 extern const char *panicstr; /* panic message */ 11 extern char version[]; /* system version */ 12 extern char copyright[]; /* system copyright */ 13 14 extern int nblkdev; /* number of entries in bdevsw */ 15 extern int nchrdev; /* number of entries in cdevsw */ 16 extern int nswdev; /* number of swap devices */ 17 extern int nswap; /* size of swap space */ 18 19 extern int selwait; /* select timeout address */ 20 21 extern u_char curpri; /* priority of current process */ 22 23 extern int maxmem; /* max memory per process */ 24 extern int physmem; /* physical memory */ 25 26 extern dev_t dumpdev; /* dump device */ 27 extern long dumplo; /* offset into dumpdev */ 28 29 extern dev_t rootdev; /* root device */ 30 extern struct vnode *rootvp; /* vnode equivalent to above */ 31 32 extern dev_t swapdev; /* swapping device */ 33 extern struct vnode *swapdev_vp;/* vnode equivalent to above */ 34 35 extern struct sysent { /* system call table */ 36 int sy_narg; /* number of arguments */ 37 int (*sy_call)(); /* implementing function */ 38 } sysent[]; 39 40 extern int boothowto; /* reboot flags, from console subsystem */ 41 #ifdef KADB 42 extern char *bootesym; /* end of symbol info from boot */ 43 #endif 44 45 /* casts to keep lint happy */ 46 #define insque(q,p) _insque((caddr_t)q,(caddr_t)p) 47 #define remque(q) _remque((caddr_t)q) 48 49 /* 50 * General function declarations. 51 */ 52 int nullop __P((void)); 53 int enodev __P((void)); 54 int enoioctl __P((void)); 55 int enxio __P((void)); 56 int eopnotsupp __P((void)); 57 int seltrue __P((dev_t dev, int which, struct proc *p)); 58 59 void panic __P((const char *, ...)); 60 void tablefull __P((char *)); 61 void addlog __P((const char *, ...)); 62 void log __P((int, const char *, ...)); 63 void printf __P((const char *, ...)); 64 int sprintf __P((char *buf, const char *, ...)); 65 void ttyprintf __P((struct tty *, const char *, ...)); 66 67 void bcopy __P((void *from, void *to, u_int len)); 68 void ovbcopy __P((void *from, void *to, u_int len)); 69 void bzero __P((void *buf, u_int len)); 70 int bcmp __P((void *str1, void *str2, u_int len)); 71 int strlen __P((char *string)); 72 73 int copystr __P((void *kfaddr, void *kdaddr, u_int len, u_int *done)); 74 int copyinstr __P((void *udaddr, void *kaddr, u_int len, u_int *done)); 75 int copyoutstr __P((void *kaddr, void *udaddr, u_int len, u_int *done)); 76 int copyin __P((void *udaddr, void *kaddr, u_int len)); 77 int copyout __P((void *kaddr, void *udaddr, u_int len)); 78 79 int fubyte __P((void *base)); 80 #ifdef notdef 81 int fuibyte __P((void *base)); 82 #endif 83 int subyte __P((void *base, int byte)); 84 int suibyte __P((void *base, int byte)); 85 int fuword __P((void *base)); 86 int fuiword __P((void *base)); 87 int suword __P((void *base, int word)); 88 int suiword __P((void *base, int word)); 89 90 int scanc __P((unsigned size, u_char *cp, u_char *table, int mask)); 91 int skpc __P((int mask, int size, char *cp)); 92 int locc __P((int mask, char *cp, unsigned size)); 93 int ffs __P((long value)); 94