cpa.c

来自「一个用在mips体系结构中的操作系统」· C语言 代码 · 共 61 行

/*
 * Copyright (C) 1996-1998 by the Board of Trustees
 *    of Leland Stanford Junior University.
 * 
 * This file is part of the SimOS distribution. 
 * See LICENSE file for terms of the license. 
 *
 */

/*
 * CPA.c -- run on top of SimOS to obtain info about the CPA
 *          (Cell Private Area) of the specified cell.
 *
 * Output:
 *    n_cells cellid tick magic[hex]
 *    stat[hex] fcpu lcpu fpg[hex] lpg[hex]
 *    stat[hex] fcpu lcpu fpg[hex] lpg[hex]
 *    ...
 *
 */

#define HIVE

#include "stdio.h"
#include "stdlib.h"
#include "sys/sysmp.h"

#define BSIZE 1000

int b[BSIZE]; /* buffer for CELLINFO result */
int n = BSIZE;/* buffer size / number of ints returned */

int main(int argc, char** argv)
{
   int cellid;
   int i;
   int err;

   if (argc != 2) {
      if (argc == 1)
	 cellid = -1;
      else {
         fprintf(stderr, "usage: %s cellid\n", argv[0]);
         exit(1);
      }
   } else
      cellid = atoi(argv[1]);

   err = sysmp(MP_HIVE, MPHI_CELLINFO, cellid, b, &n);
   if (err) {
      printf("1 0\n");
      exit(1);
   }

   printf("%d %d %u %#010x\n", b[0], b[1], b[2], b[3]);
   for (i = 4; (i-4)/5 < b[0]; i += 5)
      printf("%#010x %d %d %#010x %#010x\n", b[i], b[i+1], b[i+2], b[i+3], b[i+4]);

   return 0;
}