+ /* Parse the words. */
+ for (i = 0; i < argc; i++)
+ if (!strcmp (argv[i], "-o"))
+ {
+ i++;
+ if (!strcmp (argv[i], "mlfqs"))
+ enable_mlfqs = true;
+#ifdef VM
+ else if (!strcmp (argv[i], "random-paging"))
+ enable_random_paging = true;
+#endif
+ else
+ PANIC ("unknown option `-o %s' (use -u for help)", argv[i]);
+ }
+ else if (!strcmp (argv[i], "-rs"))
+ random_init (atoi (argv[++i]));
+ else if (!strcmp (argv[i], "-q"))
+ power_off_when_done = true;
+#ifdef USERPROG
+ else if (!strcmp (argv[i], "-ex"))
+ initial_program = argv[++i];
+ else if (!strcmp (argv[i], "-ul"))
+ user_page_limit = atoi (argv[++i]);
+#endif
+#ifdef FILESYS
+ else if (!strcmp (argv[i], "-f"))
+ format_filesys = true;
+ else if (!strcmp (argv[i], "-ci"))
+ {
+ fsutil_copyin_file = argv[++i];
+ fsutil_copyin_size = atoi (argv[++i]);
+ }
+ else if (!strcmp (argv[i], "-co"))
+ fsutil_copyout_file = argv[++i];
+ else if (!strcmp (argv[i], "-p"))
+ fsutil_print_file = argv[++i];
+ else if (!strcmp (argv[i], "-r"))
+ fsutil_remove_file = argv[++i];
+ else if (!strcmp (argv[i], "-ls"))
+ fsutil_list_files = true;
+#endif
+ else if (!strcmp (argv[i], "-u"))
+ {
+ printf (
+ "Kernel options:\n"
+ " -o mlfqs Use multi-level feedback queue scheduler.\n"
+#ifdef USERPROG
+ " -ex 'PROG [ARG...]' Run PROG, passing the optional arguments.\n"
+ " -ul USER_MAX Limit user memory to USER_MAX pages.\n"
+#endif
+#ifdef VM
+ " -o random-paging Use random page replacement policy.\n"
+#endif
+#ifdef FILESYS
+ " -f Format the filesystem disk (hdb or hd0:1).\n"
+ " -ci FILE SIZE Copy SIZE bytes from the scratch disk (hdc\n"
+ " or hd1:0) into the filesystem as FILE.\n"
+ " -co FILE Copy FILE to the scratch disk, with\n"
+ " size at start of sector 0 and data after.\n"
+ " -p FILE Print the contents of FILE.\n"
+ " -r FILE Delete FILE.\n"
+ " -ls List files in the root directory.\n"
+#endif
+ " -rs SEED Set random seed to SEED.\n"
+ " -q Power off after doing requested actions.\n"
+ " -u Print this help message and power off.\n"
+ );
+ power_off ();
+ }
+ else
+ PANIC ("unknown option `%s' (use -u for help)", argv[i]);