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Annotation of 43BSDReno/sys/hp300/sys_machdep.c, revision 1.1.1.1

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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