usr/src/libc/gen/mon.c

monitor(lowpc, highpc, buf, bufsiz, cntsiz)
char *lowpc, *highpc;
int *buf, bufsiz;
{
        register o;
        static *sbuf, ssiz;

        if (lowpc == 0) {
                profil(0, 0, 0, 0);
                o = creat("mon.out", 0666);
                write(o, sbuf, ssiz<<1);
                close(o);
                return;
        }
        ssiz = bufsiz;
        buf[0] = (int)lowpc;
        buf[1] = (int)highpc;
        buf[2] = cntsiz;
        sbuf = buf;
        buf += 3*(cntsiz+1);
        bufsiz -= 3*(cntsiz+1);
        if (bufsiz<=0)
                return;
        o = ((highpc - lowpc)>>1) & 077777;
        if(bufsiz < o)
                o = ((long)bufsiz<<15) / o;
        else
                o = 077777;
        profil(buf, bufsiz<<1, lowpc, o<<1);
}