riscv/riscv-isa-run.cc

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