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Annotation of 43BSDTahoe/sys/h/systm.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)systm.h     7.6 (Berkeley) 5/26/88
                      7:  */
                      8: 
                      9: /*
                     10:  * Random set of variables
                     11:  * used by more than one
                     12:  * routine.
                     13:  */
                     14: extern char version[];         /* system version */
                     15: 
                     16: /*
                     17:  * Nblkdev is the number of entries (rows) in the block switch.
                     18:  * Used in bounds checking on major device numbers.
                     19:  */
                     20: int    nblkdev;
                     21: 
                     22: /*
                     23:  * Number of character switch entries.
                     24:  */
                     25: int    nchrdev;
                     26: 
                     27: int    nswdev;                 /* number of swap devices */
                     28: int    mpid;                   /* generic for unique process id's */
                     29: char   runin;                  /* scheduling flag */
                     30: char   runout;                 /* scheduling flag */
                     31: int    runrun;                 /* scheduling flag */
                     32: char   kmapwnt;                /* kernel map want flag */
                     33: char   curpri;                 /* more scheduling */
                     34: 
                     35: int    maxmem;                 /* actual max memory per process */
                     36: int    physmem;                /* physical memory on this CPU */
                     37: 
                     38: int    nswap;                  /* size of swap space */
                     39: int    updlock;                /* lock for sync */
                     40: daddr_t        rablock;                /* block to be read ahead */
                     41: int    rasize;                 /* size of block in rablock */
                     42: extern int intstack[];         /* stack for interrupts */
                     43: dev_t  rootdev;                /* device of the root */
                     44: dev_t  dumpdev;                /* device to take dumps on */
                     45: long   dumplo;                 /* offset into dumpdev */
                     46: dev_t  swapdev;                /* swapping device */
                     47: dev_t  argdev;                 /* device for argument lists */
                     48: 
                     49: #if defined(vax) || defined(tahoe)
                     50: extern int icode[];            /* user init code */
                     51: extern int szicode;            /* its size */
                     52: #endif
                     53: 
                     54: daddr_t        bmap();
                     55: int    memall();
                     56: int    vmemall();
                     57: swblk_t        vtod();
                     58: 
                     59: /*
                     60:  * Structure of the system-entry table
                     61:  */
                     62: extern struct sysent
                     63: {
                     64:        int     sy_narg;                /* total number of arguments */
                     65:        int     (*sy_call)();           /* handler */
                     66: } sysent[];
                     67: 
                     68: int    noproc;                 /* no one is running just now */
                     69: char   *panicstr;
                     70: int    wantin;
                     71: int    boothowto;              /* reboot flags, from console subsystem */
                     72: #ifdef KADB
                     73: char   *bootesym;              /* end of symbol info from boot */
                     74: #endif
                     75: int    selwait;
                     76: 
                     77: extern char vmmap[];           /* poor name! */
                     78: 
                     79: /* casts to keep lint happy */
                     80: #define        insque(q,p)     _insque((caddr_t)q,(caddr_t)p)
                     81: #define        remque(q)       _remque((caddr_t)q)

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