Merge branch 'branch-weiyu' of /home/git/random-fuzzer into new_fuzzer

[c11tester.git] / history.cc

diff --git a/history.cc b/history.cc
index ca176b1900759e71ec8b8c25aa2c979749c88f1a..3c000e7de06c20f2054610a96f7138db78d92745 100644 (file)
--- a/history.cc
+++ b/history.cc
@@ -13,14 +13,15 @@ ModelHistory::ModelHistory() :
        func_counter(1),        /* function id starts with 1 */
        func_map(),
        func_map_rev(),
-       func_nodes()
+       func_nodes(),
+       write_history()
 {}
 
 void ModelHistory::enter_function(const uint32_t func_id, thread_id_t tid)
 {
        //model_print("thread %d entering func %d\n", tid, func_id);
        uint32_t id = id_to_int(tid);
-       SnapVector<func_id_list_t *> * thrd_func_list = model->get_execution()->get_thrd_func_list();
+       SnapVector<func_id_list_t> * thrd_func_list = model->get_execution()->get_thrd_func_list();
        SnapVector< SnapList<func_inst_list_t *> *> *
                thrd_func_inst_lists = model->get_execution()->get_thrd_func_inst_lists();
 
@@ -29,20 +30,14 @@ void ModelHistory::enter_function(const uint32_t func_id, thread_id_t tid)
                thrd_func_inst_lists->resize( id + 1 );
        }
 
-       func_id_list_t * func_list = thrd_func_list->at(id);
        SnapList<func_inst_list_t *> * func_inst_lists = thrd_func_inst_lists->at(id);
 
-       if (func_list == NULL) {
-               func_list = new func_id_list_t();
-               thrd_func_list->at(id) = func_list;
-       }
-
        if (func_inst_lists == NULL) {
                func_inst_lists = new SnapList< func_inst_list_t *>();
                thrd_func_inst_lists->at(id) = func_inst_lists;
        }
 
-       func_list->push_back(func_id);
+       (*thrd_func_list)[id].push_back(func_id);
        func_inst_lists->push_back( new func_inst_list_t() );
 
        if ( func_nodes.size() <= func_id )
@@ -53,14 +48,12 @@ void ModelHistory::enter_function(const uint32_t func_id, thread_id_t tid)
 void ModelHistory::exit_function(const uint32_t func_id, thread_id_t tid)
 {
        uint32_t id = id_to_int(tid);
-       SnapVector<func_id_list_t *> * thrd_func_list = model->get_execution()->get_thrd_func_list();
+       SnapVector<func_id_list_t> * thrd_func_list = model->get_execution()->get_thrd_func_list();
        SnapVector< SnapList<func_inst_list_t *> *> *
                thrd_func_inst_lists = model->get_execution()->get_thrd_func_inst_lists();
 
-       func_id_list_t * func_list = thrd_func_list->at(id);
        SnapList<func_inst_list_t *> * func_inst_lists = thrd_func_inst_lists->at(id);
-
-       uint32_t last_func_id = func_list->back();
+       uint32_t last_func_id = (*thrd_func_list)[id].back();
 
        if (last_func_id == func_id) {
                FuncNode * func_node = func_nodes[func_id];
@@ -69,7 +62,7 @@ void ModelHistory::exit_function(const uint32_t func_id, thread_id_t tid)
                func_inst_list_t * curr_inst_list = func_inst_lists->back();
                func_node->link_insts(curr_inst_list);
 
-               func_list->pop_back();
+               (*thrd_func_list)[id].pop_back();
                func_inst_lists->pop_back();
        } else {
                model_print("trying to exit with a wrong function id\n");
@@ -98,22 +91,18 @@ void ModelHistory::process_action(ModelAction *act, thread_id_t tid)
 {
        /* return if thread i has not entered any function or has exited
           from all functions */
-       SnapVector<func_id_list_t *> * thrd_func_list = model->get_execution()->get_thrd_func_list();
+       SnapVector<func_id_list_t> * thrd_func_list = model->get_execution()->get_thrd_func_list();
        SnapVector< SnapList<func_inst_list_t *> *> *
                thrd_func_inst_lists = model->get_execution()->get_thrd_func_inst_lists();
 
        uint32_t id = id_to_int(tid);
        if ( thrd_func_list->size() <= id )
                return;
-       else if (thrd_func_list->at(id) == NULL)
-               return;
 
        /* get the function id that thread i is currently in */
-       func_id_list_t * func_list = thrd_func_list->at(id);
+       uint32_t func_id = (*thrd_func_list)[id].back();
        SnapList<func_inst_list_t *> * func_inst_lists = thrd_func_inst_lists->at(id);
 
-       uint32_t func_id = func_list->back();
-
        if ( func_nodes.size() <= func_id )
                resize_func_nodes( func_id + 1 );
 
@@ -129,6 +118,9 @@ void ModelHistory::process_action(ModelAction *act, thread_id_t tid)
        //      if (inst->is_read())
        //      func_node->store_read(act, tid);
 
+       if (inst->is_write())
+               add_to_write_history(act->get_location(), act->get_write_value());
+
        /* add to curr_inst_list */
        func_inst_list_t * curr_inst_list = func_inst_lists->back();
        ASSERT(curr_inst_list != NULL);
@@ -144,6 +136,32 @@ FuncNode * ModelHistory::get_func_node(uint32_t func_id)
        return func_nodes[func_id];
 }
 
+uint64_t ModelHistory::query_last_read(void * location, thread_id_t tid)
+{
+       SnapVector<func_id_list_t> * thrd_func_list = model->get_execution()->get_thrd_func_list();
+       uint32_t id = id_to_int(tid);
+
+       ASSERT( thrd_func_list->size() > id );
+       uint32_t func_id = (*thrd_func_list)[id].back();
+       FuncNode * func_node = func_nodes[func_id];
+
+       uint64_t last_read_val = 0xdeadbeef;
+       if (func_node != NULL) {
+               last_read_val = func_node->query_last_read(location, tid);
+       }
+
+       return last_read_val;
+}
+
+void ModelHistory::add_to_write_history(void * location, uint64_t write_val)
+{
+       if ( !write_history.contains(location) )
+               write_history.put(location, new write_set_t() );
+
+       write_set_t * write_set = write_history.get(location);
+       write_set->add(write_val);
+}
+
 void ModelHistory::print()
 {
        /* function id starts with 1 */