fix mutex_trylock bug
[c11tester.git] / main.cc
diff --git a/main.cc b/main.cc
index 7ce43cbf0f1ce9a4a8b7a0de4f7b5b27f0c5b6ff..b0931f757e860a778c46e347dde08f87e978abe0 100644 (file)
--- a/main.cc
+++ b/main.cc
 #include "snapshot-interface.h"
 #include "plugins.h"
 
-static void param_defaults(struct model_params *params)
+void param_defaults(struct model_params *params)
 {
        params->verbose = !!DBG_ENABLED();
-       params->uninitvalue = 0;
        params->maxexecutions = 10;
+       params->traceminsize = 0;
+       params->checkthreshold = 500000;
+       params->removevisible = false;
+       params->nofork = false;
 }
 
-static void print_usage(const char *program_name, struct model_params *params)
+static void print_usage(struct model_params *params)
 {
        ModelVector<TraceAnalysis *> * registeredanalysis=getRegisteredTraceAnalysis();
        /* Reset defaults before printing */
@@ -35,7 +38,7 @@ static void print_usage(const char *program_name, struct model_params *params)
                "Distributed under the GPLv2\n"
                "Written by Brian Norris and Brian Demsky\n"
                "\n"
-               "Usage: %s [MODEL-CHECKER OPTIONS] -- [PROGRAM ARGS]\n"
+               "Usage: C11TESTER=[MODEL-CHECKER OPTIONS]\n"
                "\n"
                "MODEL-CHECKER OPTIONS can be any of the model-checker options listed below. Arguments\n"
                "provided after the `--' (the PROGRAM ARGS) are passed to the user program.\n"
@@ -46,19 +49,21 @@ static void print_usage(const char *program_name, struct model_params *params)
                "                              0 is quiet; 1 shows valid executions; 2 is noisy;\n"
                "                              3 is noisier.\n"
                "                              Default: %d\n"
-               "-u, --uninitialized=VALUE   Return VALUE any load which may read from an\n"
-               "                              uninitialized atomic.\n"
-               "                              Default: %u\n"
                "-t, --analysis=NAME         Use Analysis Plugin.\n"
                "-o, --options=NAME          Option for previous analysis plugin.  \n"
                "-x, --maxexec=NUM           Maximum number of executions.\n"
                "                            Default: %u\n"
                "                            -o help for a list of options\n"
-               " --                         Program arguments follow.\n\n",
-               program_name,
+               "-n                          No fork\n"
+               "-m, --minsize=NUM           Minimum number of actions to keep\n"
+               "                            Default: %u\n"
+               "-f, --freqfree=NUM          Frequency to free actions\n"
+               "                            Default: %u\n"
+               "-r, --removevisible         Free visible writes\n",
                params->verbose,
-               params->uninitvalue,
-               params->maxexecutions);
+               params->maxexecutions,
+               params->traceminsize,
+               params->checkthreshold);
        model_print("Analysis plugins:\n");
        for(unsigned int i=0;i<registeredanalysis->size();i++) {
                TraceAnalysis * analysis=(*registeredanalysis)[i];
@@ -82,24 +87,52 @@ bool install_plugin(char * name) {
        return true;
 }
 
-static void parse_options(struct model_params *params, int argc, char **argv)
-{
-       const char *shortopts = "ht:o:u:x:v::";
+void parse_options(struct model_params *params) {
+       const char *shortopts = "hrnt:o:x:v:m:f:";
        const struct option longopts[] = {
                {"help", no_argument, NULL, 'h'},
-               {"verbose", optional_argument, NULL, 'v'},
-               {"uninitialized", required_argument, NULL, 'u'},
+               {"removevisible", no_argument, NULL, 'r'},
                {"analysis", required_argument, NULL, 't'},
                {"options", required_argument, NULL, 'o'},
                {"maxexecutions", required_argument, NULL, 'x'},
+               {"verbose", optional_argument, NULL, 'v'},
+               {"minsize", required_argument, NULL, 'm'},
+               {"freqfree", required_argument, NULL, 'f'},
                {0, 0, 0, 0}    /* Terminator */
        };
        int opt, longindex;
        bool error = false;
+       char * options = getenv("C11TESTER");
+
+       if (options == NULL)
+               return;
+       int argc = 1;
+       int index;
+       for(index = 0;options[index]!=0;index++) {
+               if (options[index] == ' ')
+                       argc++;
+       }
+       argc++; //first parameter is executable name
+       char optcpy[index + 1];
+       memcpy(optcpy, options, index+1);
+       char * argv[argc + 1];
+       argv[0] = NULL;
+       argv[1] = optcpy;
+       int count = 2;
+       for(index = 0;optcpy[index]!=0;index++) {
+               if (optcpy[index] == ' ') {
+                       argv[count++] = &optcpy[index+1];
+                       optcpy[index] = 0;
+               }
+       }
+
        while (!error && (opt = getopt_long(argc, argv, shortopts, longopts, &longindex)) != -1) {
                switch (opt) {
                case 'h':
-                       print_usage(argv[0], params);
+                       print_usage(params);
+                       break;
+               case 'n':
+                       params->nofork = true;
                        break;
                case 'x':
                        params->maxexecutions = atoi(optarg);
@@ -107,13 +140,19 @@ static void parse_options(struct model_params *params, int argc, char **argv)
                case 'v':
                        params->verbose = optarg ? atoi(optarg) : 1;
                        break;
-               case 'u':
-                       params->uninitvalue = atoi(optarg);
-                       break;
                case 't':
                        if (install_plugin(optarg))
                                error = true;
                        break;
+               case 'm':
+                       params->traceminsize = atoi(optarg);
+                       break;
+               case 'f':
+                       params->checkthreshold = atoi(optarg);
+                       break;
+               case 'r':
+                       params->removevisible = true;
+                       break;
                case 'o':
                {
                        ModelVector<TraceAnalysis *> * analyses = getInstalledTraceAnalysis();
@@ -127,25 +166,14 @@ static void parse_options(struct model_params *params, int argc, char **argv)
                }
        }
 
-       /* Pass remaining arguments to user program */
-       params->argc = argc - (optind - 1);
-       params->argv = argv + (optind - 1);
-
-       /* Reset program name */
-       params->argv[0] = argv[0];
-
-       /* Reset (global) optind for potential use by user program */
-       optind = 1;
+       /* Special value to reset implementation as described by Linux man page.  */
+       optind = 0;
 
        if (error)
-               print_usage(argv[0], params);
+               print_usage(params);
 }
 
-int main_argc;
-char **main_argv;
-
-static void install_trace_analyses(ModelExecution *execution)
-{
+void install_trace_analyses(ModelExecution *execution) {
        ModelVector<TraceAnalysis *> * installedanalysis=getInstalledTraceAnalysis();
        for(unsigned int i=0;i<installedanalysis->size();i++) {
                TraceAnalysis * ta=(*installedanalysis)[i];
@@ -155,58 +183,3 @@ static void install_trace_analyses(ModelExecution *execution)
                ta->actionAtInstallation();
        }
 }
-
-/** The model_main function contains the main model checking loop. */
-static void model_main()
-{
-       struct model_params params;
-
-       param_defaults(&params);
-       register_plugins();
-
-       parse_options(&params, main_argc, main_argv);
-
-       //Initialize race detector
-       initRaceDetector();
-
-       snapshot_stack_init();
-
-       if (!model)
-               model = new ModelChecker();
-       model->setParams(params);
-       install_trace_analyses(model->get_execution());
-
-       snapshot_record(0);
-       model->run();
-       delete model;
-
-       DEBUG("Exiting\n");
-}
-
-/**
- * Main function.  Just initializes snapshotting library and the
- * snapshotting library calls the model_main function.
- */
-int main(int argc, char **argv)
-{
-       main_argc = argc;
-       main_argv = argv;
-
-       /*
-        * If this printf statement is removed, CDSChecker will fail on an
-        * assert on some versions of glibc.  The first time printf is
-        * called, it allocated internal buffers.  We can't easily snapshot
-        * libc since we also use it.
-        */
-
-       printf("CDSChecker\n"
-                                "Copyright (c) 2013 Regents of the University of California. All rights reserved.\n"
-                                "Distributed under the GPLv2\n"
-                                "Written by Brian Norris and Brian Demsky\n\n");
-
-       /* Configure output redirection for the model-checker */
-       redirect_output();
-
-       /* Let's jump in quickly and start running stuff */
-       snapshot_system_init(10000, 1024, 1024, 40000, &model_main);
-}