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Annotation of 43BSDReno/sys/tahoe/Locore.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986, 1988 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:  *     @(#)Locore.c    7.3 (Berkeley) 5/9/89
        !             7:  */
        !             8: 
        !             9: #include "param.h"
        !            10: #include "systm.h"
        !            11: #include "user.h"
        !            12: #include "vm.h"
        !            13: #include "ioctl.h"
        !            14: #include "tty.h"
        !            15: #include "proc.h"
        !            16: #include "buf.h"
        !            17: #include "msgbuf.h"
        !            18: #include "mbuf.h"
        !            19: #include "protosw.h"
        !            20: #include "domain.h"
        !            21: #include "map.h"
        !            22: 
        !            23: #include "cpu.h"
        !            24: #include "mtpr.h"
        !            25: #include "trap.h"
        !            26: #include "psl.h"
        !            27: #include "pte.h"
        !            28: #include "scb.h"
        !            29: #include "cp.h"
        !            30: #include "mem.h"
        !            31: 
        !            32: #include "../tahoemath/fp.h"
        !            33: 
        !            34: /*
        !            35:  * Pseudo file for lint to show what is used/defined in locore.s.
        !            36:  */
        !            37: 
        !            38: struct scb scb;
        !            39: struct rpb rpb;
        !            40: int    dumpflag;
        !            41: int    intstack[3*NBPG];
        !            42: int    masterpaddr;            /* p_addr of current process on master cpu */
        !            43: struct user u;
        !            44: int    icode[8];
        !            45: int    szicode = sizeof (icode);
        !            46: quad   catcher[SCB_LASTIV];
        !            47: /*
        !            48:  * Variables declared for savecore, or
        !            49:  * implicitly, such as by config or the loader.
        !            50:  */
        !            51: char   version[] = "4.3 BSD UNIX ....";
        !            52: int    etext;
        !            53: 
        !            54: doadump() { dumpsys(); }
        !            55: 
        !            56: lowinit()
        !            57: {
        !            58: #if !defined(GPROF)
        !            59:        caddr_t cp;
        !            60: #endif
        !            61:        extern int dumpmag;
        !            62:        extern int rthashsize;
        !            63:        extern int arptab_size;
        !            64:        extern int dk_ndrive;
        !            65:        extern struct domain unixdomain;
        !            66: #ifdef INET
        !            67:        extern struct domain inetdomain;
        !            68: #endif
        !            69: #include "imp.h"
        !            70: #if NIMP > 0
        !            71:        extern struct domain impdomain;
        !            72: #endif
        !            73: #ifdef NS
        !            74:        extern struct domain nsdomain;
        !            75: #endif
        !            76: 
        !            77:        /* cpp messes these up for lint so put them here */
        !            78:        unixdomain.dom_next = domains;
        !            79:        domains = &unixdomain;
        !            80: #ifdef INET
        !            81:        inetdomain.dom_next = domains;
        !            82:        domains = &inetdomain;
        !            83: #endif
        !            84: #if NIMP > 0
        !            85:        impdomain.dom_next = domains;
        !            86:        domains = &impdomain;
        !            87: #endif
        !            88: #ifdef NS
        !            89:        nsdomain.dom_next = domains;
        !            90:        domains = &nsdomain;
        !            91: #endif
        !            92:        dumpmag = 0;                    /* used only by savecore */
        !            93:        rthashsize = rthashsize;        /* used by netstat, etc. */
        !            94:        arptab_size = arptab_size;      /* used by arp command */
        !            95:        dk_ndrive = dk_ndrive;          /* used by vmstat, iostat, etc. */
        !            96: 
        !            97:        /*
        !            98:         * Pseudo-uses of globals.
        !            99:         */
        !           100:        lowinit();
        !           101:        intstack[0] = intstack[1];
        !           102:        rpb = rpb;
        !           103:        scb = scb;
        !           104:        maxmem = physmem = freemem = 0;
        !           105:        u = u;
        !           106:        fixctlrmask();
        !           107:        main(0);
        !           108: 
        !           109:        /*
        !           110:         * Routines called from interrupt vectors.
        !           111:         */
        !           112:        buserror((caddr_t)0);
        !           113:        panic("Machine check");
        !           114:        printf("Write timeout");
        !           115:        rawintr();
        !           116: #ifdef INET
        !           117:        ipintr();
        !           118: #endif
        !           119: #ifdef NS
        !           120:        nsintr();
        !           121: #endif
        !           122:        cnrint(0);
        !           123:        cnxint(0);
        !           124:        hardclock((caddr_t)0, 0);
        !           125:        softclock((caddr_t)0, 0);
        !           126:        fpemulate(0, 0, 0, 0, 0, 0, 0, 0, 0);
        !           127:        trap(0, 0, 0, 0, 0, 0, (unsigned)0, 0, 0);
        !           128:        syscall(0, 0, 0, 0, 0, 0, (unsigned)0, 0, 0);
        !           129: 
        !           130:        if (vmemall((struct pte *)0, 0, (struct proc *)0, 0))
        !           131:                return;         /* use value */
        !           132:        boothowto = 0;
        !           133:        if (rmget((struct map *)0, 0, 0) == 0)
        !           134:                return;
        !           135:        dumpflag = 0; dumpflag = dumpflag;
        !           136: #ifdef KADB
        !           137:        bootesym = 0; bootesym = bootesym;
        !           138: #endif
        !           139: #if !defined(GPROF)
        !           140:        cp = (caddr_t)&etext;
        !           141:        cp = cp;
        !           142: #endif
        !           143: }
        !           144: 
        !           145: struct pte Sysmap[6*NPTEPG];
        !           146: caddr_t        Sysbase;
        !           147: struct pte VMEMmap[1];
        !           148: caddr_t        vmem, vmembeg, vmemend;
        !           149: struct pte VMEMmap1[1];
        !           150: caddr_t        vmem1;
        !           151: struct pte VBmap[1];
        !           152: caddr_t        vbbase, vbend;
        !           153: struct pte Usrptmap[USRPTSIZE];
        !           154: struct pte usrpt[USRPTSIZE*NPTEPG];
        !           155: struct pte Forkmap[UPAGES];
        !           156: struct user forkutl;
        !           157: struct pte Xswapmap[UPAGES];
        !           158: struct user xswaputl;
        !           159: struct pte Xswap2map[UPAGES];
        !           160: struct user xswap2utl;
        !           161: struct pte Swapmap[UPAGES];
        !           162: struct user swaputl;
        !           163: struct pte Pushmap[UPAGES];
        !           164: struct user pushutl;
        !           165: struct pte Vfmap[UPAGES];
        !           166: struct user vfutl;
        !           167: struct pte CMAP1[1], CMAP2[1];
        !           168: caddr_t        CADDR1, CADDR2;
        !           169: struct pte mmap[1];
        !           170: char   vmmap[1];
        !           171: struct pte msgbufmap[3*NBPG];
        !           172: struct msgbuf msgbuf;
        !           173: struct pte kmempt[100], ekmempt[1];
        !           174: char   kmembase[100*NBPG];
        !           175: struct pte Mbmap[NMBCLUSTERS/CLSIZE];
        !           176: struct mbuf mbutl[NMBCLUSTERS*CLBYTES/sizeof (struct mbuf)];
        !           177: #ifdef NFS
        !           178: struct pte Nfsiomap[MAXPHYS/NBPG+1];
        !           179: char   nfsiobuf[MAXPHYS+NBPG];
        !           180: #endif
        !           181: 
        !           182: /*ARGSUSED*/
        !           183: badaddr(addr, len) caddr_t addr; int len; { return (0); }
        !           184: /*ARGSUSED*/
        !           185: ovbcopy(from, to, len) caddr_t from, to; unsigned len; { }
        !           186: copyinstr(udaddr, kaddr, maxlength, lencopied)
        !           187:     caddr_t udaddr, kaddr; u_int maxlength, *lencopied;
        !           188: { *kaddr = *udaddr; *lencopied = maxlength; return (0); }
        !           189: copyoutstr(kaddr, udaddr, maxlength, lencopied)
        !           190:     caddr_t kaddr, udaddr; u_int maxlength, *lencopied;
        !           191: { *kaddr = *udaddr; *lencopied = maxlength; return (0); }
        !           192: copystr(kfaddr, kdaddr, maxlength, lencopied)
        !           193:     caddr_t kfaddr, kdaddr; u_int maxlength, *lencopied;
        !           194: { *kdaddr = *kfaddr; *lencopied = maxlength; return (0); }
        !           195: /*ARGSUSED*/
        !           196: copyin(udaddr, kaddr, n) caddr_t udaddr, kaddr; u_int n; { return (0); }
        !           197: /*ARGSUSED*/
        !           198: copyout(kaddr, udaddr, n) caddr_t kaddr, udaddr; u_int n; { return (0); }
        !           199: 
        !           200: /*ARGSUSED*/
        !           201: longjmp(lp) label_t *lp; { /*NOTREACHED*/ }
        !           202: 
        !           203: /*ARGSUSED*/
        !           204: savectx(lp) label_t *lp; { return (0); }
        !           205: 
        !           206: /*ARGSUSED*/
        !           207: setrq(p) struct proc *p; { }
        !           208: 
        !           209: /*ARGSUSED*/
        !           210: remrq(p) struct proc *p; { }
        !           211: 
        !           212: swtch() { if (whichqs) whichqs = 0; if (masterpaddr) masterpaddr = 0; }
        !           213: 
        !           214: /*ARGSUSED*/
        !           215: resume(pcbpf) unsigned pcbpf; { }
        !           216: 
        !           217: /*ARGSUSED*/
        !           218: fubyte(base) caddr_t base; { return (0); }
        !           219: /*ARGSUSED*/
        !           220: subyte(base, i) caddr_t base; { return (0); }
        !           221: /*ARGSUSED*/
        !           222: fuword(base) caddr_t base; { return (0); }
        !           223: /*ARGSUSED*/
        !           224: suword(base, i) caddr_t base; { return (0); }
        !           225: 
        !           226: /*ARGSUSED*/
        !           227: copyseg(udaddr, pf)
        !           228:     caddr_t udaddr; unsigned pf;
        !           229: { CMAP1[0] = CMAP1[0]; CADDR1[0] = CADDR1[0]; }
        !           230: 
        !           231: /*ARGSUSED*/
        !           232: clearseg(pf) unsigned pf; { CMAP2[0] = CMAP2[0]; CADDR2[0] = CADDR2[0]; }
        !           233: 
        !           234: /*ARGSUSED*/
        !           235: useracc(udaddr, bcnt, rw) caddr_t udaddr; unsigned bcnt; { return (0); }
        !           236: 
        !           237: /*ARGSUSED*/
        !           238: kernacc(addr, bcnt, rw) caddr_t addr; unsigned bcnt; { return (0); }
        !           239: 
        !           240: /*ARGSUSED*/
        !           241: addupc(pc, prof, counts) int pc; struct uprof *prof; int counts; { }
        !           242: 
        !           243: /*ARGSUSED*/
        !           244: scanc(size, cp, table, mask)
        !           245:     unsigned size; u_char *cp, table[]; u_char mask;
        !           246: { return (0); }
        !           247: 
        !           248: /*ARGSUSED*/
        !           249: skpc(mask, size, cp) int mask; int size; char *cp; { return (0); }
        !           250: 
        !           251: #ifdef notdef
        !           252: /*ARGSUSED*/
        !           253: locc(mask, size, cp) int mask; int size; char *cp; { return (0); }
        !           254: #endif
        !           255: 
        !           256: /*
        !           257:  * Routines expanded by inline.
        !           258:  */
        !           259: #ifdef notdef
        !           260: fuibyte(base) caddr_t base; { return (fubyte(base)); }
        !           261: #endif
        !           262: fuiword(base) caddr_t base; { return (fuword(base)); }
        !           263: suibyte(base, i) caddr_t base; { return (subyte(base, i)); }
        !           264: suiword(base, i) caddr_t base; { return (suword(base, i)); }
        !           265: 
        !           266: /*ARGSUSED*/
        !           267: setjmp(lp) label_t *lp; { return (0); }
        !           268: 
        !           269: /*ARGSUSED*/
        !           270: _insque(p, q) caddr_t p, q; { }
        !           271: /*ARGSUSED*/
        !           272: _remque(p) caddr_t p; { }
        !           273: 
        !           274: /*ARGSUSED*/
        !           275: bcopy(from, to, len) caddr_t from, to; unsigned len; { }
        !           276: /*ARGSUSED*/
        !           277: bzero(base, count) caddr_t base; unsigned count; { }
        !           278: /*ARGSUSED*/
        !           279: blkclr(base, count) caddr_t base; unsigned count; { }
        !           280: 
        !           281: /*ARGSUSED*/
        !           282: /*VARARGS1*/
        !           283: mtpr(reg, v) int reg; { }
        !           284: /*ARGSUSED*/
        !           285: mfpr(reg) int reg; { return (0); }
        !           286: 
        !           287: /*ARGSUSED*/
        !           288: _movow(dst, v) u_short *dst, v; { }
        !           289: /*ARGSUSED*/
        !           290: _movob(dst, v) u_char *dst, v; { }
        !           291: 
        !           292: /*ARGSUSED*/
        !           293: ffs(v) long v; { return (0); }
        !           294: 
        !           295: imin(a, b) int a, b; { return (a < b ? a : b); }
        !           296: imax(a, b) int a, b; { return (a > b ? a : b); }
        !           297: #ifdef notdef
        !           298: unsigned min(a, b) u_int a, b; { return (a < b ? a : b); }
        !           299: unsigned max(a, b) u_int a, b; { return (a > b ? a : b); }
        !           300: #endif

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