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Annotation of 43BSDReno/sys/hp300/sys_machdep.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)sys_machdep.c       7.4 (Berkeley) 6/28/90
        !            21:  */
        !            22: 
        !            23: #include "param.h"
        !            24: #include "systm.h"
        !            25: #include "ioctl.h"
        !            26: #include "file.h"
        !            27: #include "time.h"
        !            28: #include "proc.h"
        !            29: #include "uio.h"
        !            30: #include "kernel.h"
        !            31: #include "mtio.h"
        !            32: #include "buf.h"
        !            33: #include "trace.h"
        !            34: 
        !            35: #include "pte.h"
        !            36: 
        !            37: #ifdef TRACE
        !            38: int    nvualarm;
        !            39: 
        !            40: vtrace(p, uap, retval)
        !            41:        struct proc *p;
        !            42:        register struct args {
        !            43:                int     request;
        !            44:                int     value;
        !            45:        } *uap;
        !            46:        int *retval;
        !            47: {
        !            48:        int vdoualarm();
        !            49: 
        !            50:        switch (uap->request) {
        !            51: 
        !            52:        case VTR_DISABLE:               /* disable a trace point */
        !            53:        case VTR_ENABLE:                /* enable a trace point */
        !            54:                if (uap->value < 0 || uap->value >= TR_NFLAGS)
        !            55:                        return (EINVAL);
        !            56:                *retval = traceflags[uap->value];
        !            57:                traceflags[uap->value] = uap->request;
        !            58:                break;
        !            59: 
        !            60:        case VTR_VALUE:         /* return a trace point setting */
        !            61:                if (uap->value < 0 || uap->value >= TR_NFLAGS)
        !            62:                        return (EINVAL);
        !            63:                *retval = traceflags[uap->value];
        !            64:                break;
        !            65: 
        !            66:        case VTR_UALARM:        /* set a real-time ualarm, less than 1 min */
        !            67:                if (uap->value <= 0 || uap->value > 60 * hz || nvualarm > 5)
        !            68:                        return (EINVAL);
        !            69:                nvualarm++;
        !            70:                timeout(vdoualarm, (caddr_t)p->p_pid, uap->value);
        !            71:                break;
        !            72: 
        !            73:        case VTR_STAMP:
        !            74:                trace(TR_STAMP, uap->value, p->p_pid);
        !            75:                break;
        !            76:        }
        !            77:        return (0);
        !            78: }
        !            79: 
        !            80: vdoualarm(arg)
        !            81:        int arg;
        !            82: {
        !            83:        register struct proc *p;
        !            84: 
        !            85:        p = pfind(arg);
        !            86:        if (p)
        !            87:                psignal(p, 16);
        !            88:        nvualarm--;
        !            89: }
        !            90: #endif

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