2 * @brief Entry point for the model checker.
12 /* global "model" object */
14 #include "snapshot-interface.h"
16 static void param_defaults(struct model_params *params)
19 params->maxfuturedelay = 100;
20 params->fairwindow = 0;
21 params->yieldon = false;
22 params->enabledcount = 1;
24 params->maxfuturevalues = 0;
25 params->expireslop = 10;
26 params->verbose = !!DBG_ENABLED();
27 params->uninitvalue = 0;
30 static void print_usage(struct model_params *params)
32 /* Reset defaults before printing */
33 param_defaults(params);
36 "Copyright (c) 2013 Regents of the University of California. All rights reserved.\n"
37 "Distributed under the GPLv2\n"
38 "Usage: <program name> [MC_OPTIONS] -- [PROGRAM ARGUMENTS]\n"
41 "-h Display this help message and exit\n"
42 "-m Maximum times a thread can read from the same write\n"
43 " while other writes exist. Default: %d\n"
44 "-M Maximum number of future values that can be sent to\n"
45 " the same read. Default: %d\n"
46 "-s Maximum actions that the model checker will wait for\n"
47 " a write from the future past the expected number of\n"
48 " actions. Default: %d\n"
49 "-S Future value expiration sloppiness. Default: %u\n"
50 "-f Specify a fairness window in which actions that are\n"
51 " enabled sufficiently many times should receive\n"
52 " priority for execution. Default: %d\n"
53 "-y Turn on CHESS yield-based fairness support.\n"
55 "-e Enabled count. Default: %d\n"
56 "-b Upper length bound. Default: %d\n"
57 "-v Print verbose execution information.\n"
58 "-u Value for uninitialized reads. Default: %u\n"
59 "-- Program arguments follow.\n\n",
60 params->maxreads, params->maxfuturevalues, params->maxfuturedelay, params->expireslop, params->fairwindow, params->yieldon, params->enabledcount, params->bound, params->uninitvalue);
64 static void parse_options(struct model_params *params, int argc, char **argv)
66 const char *shortopts = "hym:M:s:S:f:e:b:u:v";
69 while (!error && (opt = getopt(argc, argv, shortopts)) != -1) {
75 params->maxfuturedelay = atoi(optarg);
78 params->expireslop = atoi(optarg);
81 params->fairwindow = atoi(optarg);
84 params->enabledcount = atoi(optarg);
87 params->bound = atoi(optarg);
90 params->maxreads = atoi(optarg);
93 params->maxfuturevalues = atoi(optarg);
99 params->uninitvalue = atoi(optarg);
102 params->yieldon = true;
110 /* Pass remaining arguments to user program */
111 params->argc = argc - (optind - 1);
112 params->argv = argv + (optind - 1);
114 /* Reset program name */
115 params->argv[0] = argv[0];
117 /* Reset (global) optind for potential use by user program */
127 /** The model_main function contains the main model checking loop. */
128 static void model_main()
130 struct model_params params;
132 param_defaults(¶ms);
134 parse_options(¶ms, main_argc, main_argv);
136 //Initialize race detector
139 snapshot_stack_init();
141 model = new ModelChecker(params);
150 * Main function. Just initializes snapshotting library and the
151 * snapshotting library calls the model_main function.
153 int main(int argc, char **argv)
158 /* Configure output redirection for the model-checker */
161 /* Let's jump in quickly and start running stuff */
162 snapshot_system_init(10000, 1024, 1024, 4000, &model_main);