riscv/riscv-isa-run.cc

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "sim.h"
   4 #include "htif.h"
   5
   6 static void help()
   7 {
   8   fprintf(stderr, "usage: riscv-isa-run -f <fd> -t <fd> [additional options]\n");
   9   fprintf(stderr, "Options:\n");
  10   fprintf(stderr, "  -f <fd>    From-host pipe file descriptor\n");
  11   fprintf(stderr, "  -t <fd>    To-host pipe file descriptor\n");
  12   fprintf(stderr, "  -p <n>     Simulate <n> processors\n");
  13   fprintf(stderr, "  -d         Interactive debug mode\n");
  14   exit(1);
  15 }
  16
  17 int main(int argc, char** argv)
  18 {
  19   bool debug = false;
  20   int nprocs = 1;
  21   int fromhost_fd = -1, tohost_fd = -1;
  22
  23   // parse command-line arguments
  24   for(int c; (c = getopt(argc,argv,"hdp:f:t:")) != -1; )
  25   {
  26     switch(c)
  27     {
  28       case 'd':
  29         debug = true;
  30         break;
  31       case 'p':
  32         nprocs = atoi(optarg);
  33         break;
  34       case 'f':
  35         fromhost_fd = atoi(optarg);
  36         break;
  37       case 't':
  38         tohost_fd = atoi(optarg);
  39         break;
  40       default:
  41         fprintf(stderr, "unknown option: -%c", optopt);
  42       case 'h':
  43         help();
  44     }
  45   }
  46
  47   // we require -f and -t to be specified so we can communicate with the host
  48   if(fromhost_fd == -1 || tohost_fd == -1)
  49     help();
  50
  51   // initialize host-target interface
  52   htif_t htif(tohost_fd, fromhost_fd);
  53
  54   // initalize simulator and run to completion
  55   sim_t s(nprocs, &htif);
  56   s.run(debug);
  57 }