#include "funcnode.h"
+#include "predicate.h"
FuncNode::FuncNode() :
- func_insts(),
+ func_inst_map(),
inst_list(),
- entry_insts()
+ entry_insts(),
+ thrd_read_map(),
+ read_locations()
{}
+/* Check whether FuncInst with the same type, position, and location
+ * as act has been added to func_inst_map or not. If so, return it;
+ * if not, add it and return it.
+ *
+ * @return FuncInst with the same type, position, and location as act */
FuncInst * FuncNode::get_or_add_action(ModelAction *act)
{
ASSERT(act);
-
const char * position = act->get_position();
/* Actions THREAD_CREATE, THREAD_START, THREAD_YIELD, THREAD_JOIN,
if (position == NULL)
return NULL;
- if ( func_insts.contains(position) ) {
- FuncInst * inst = func_insts.get(position);
+ if ( func_inst_map.contains(position) ) {
+ FuncInst * inst = func_inst_map.get(position);
if (inst->get_type() != act->get_type() ) {
// model_print("action with a different type occurs at line number %s\n", position);
func_inst = new FuncInst(act, this);
inst->get_collisions()->push_back(func_inst);
- inst_list.push_back(func_inst); // delete?
- // model_print("collision added\n");
-
+ inst_list.push_back(func_inst); // delete?
+
return func_inst;
}
}
FuncInst * func_inst = new FuncInst(act, this);
- func_insts.put(position, func_inst);
+ func_inst_map.put(position, func_inst);
inst_list.push_back(func_inst);
+
return func_inst;
}
if (inst == NULL)
return;
- func_inst_list_mt::iterator it;
- for (it = entry_insts.begin(); it != entry_insts.end(); it++) {
- if (inst == *it)
+ mllnode<FuncInst*>* it;
+ for (it = entry_insts.begin();it != NULL;it=it->getNext()) {
+ if (inst == it->getVal())
return;
}
entry_insts.push_back(inst);
}
+
+/* @param inst_list a list of FuncInsts; this argument comes from ModelExecution
+ * Link FuncInsts in a list - add one FuncInst to another's predecessors and successors
+ */
+void FuncNode::link_insts(func_inst_list_t * inst_list)
+{
+ if (inst_list == NULL)
+ return;
+
+ sllnode<FuncInst *>* it = inst_list->begin();
+ sllnode<FuncInst *>* prev;
+
+ if (inst_list->size() == 0)
+ return;
+
+ /* add the first instruction to the list of entry insts */
+ FuncInst * entry_inst = it->getVal();
+ add_entry_inst(entry_inst);
+
+ it=it->getNext();
+ while (it != NULL) {
+ prev = it;
+ prev = it->getPrev();
+
+ FuncInst * prev_inst = prev->getVal();
+ FuncInst * curr_inst = it->getVal();
+
+ prev_inst->add_succ(curr_inst);
+ curr_inst->add_pred(prev_inst);
+
+ it=it->getNext();
+ }
+}
+
+/* @param tid thread id
+ * Store the values read by atomic read actions into thrd_read_map */
+void FuncNode::store_read(ModelAction * act, uint32_t tid)
+{
+ ASSERT(act);
+
+ void * location = act->get_location();
+ uint64_t read_from_val = act->get_reads_from_value();
+
+ /* resize and initialize */
+ uint32_t old_size = thrd_read_map.size();
+ if (old_size <= tid) {
+ thrd_read_map.resize(tid + 1);
+ for (uint32_t i = old_size;i < tid + 1;i++)
+ thrd_read_map[i] = new read_map_t();
+ }
+
+ read_map_t * read_map = thrd_read_map[tid];
+ read_map->put(location, read_from_val);
+
+ /* Store the memory locations where atomic reads happen */
+ bool push_loc = true;
+ mllnode<void *> * it;
+ for (it = read_locations.begin();it != NULL;it=it->getNext()) {
+ if (location == it->getVal()) {
+ push_loc = false;
+ break;
+ }
+ }
+
+ if (push_loc)
+ read_locations.push_back(location);
+}
+
+uint64_t FuncNode::query_last_read(void * location, uint32_t tid)
+{
+ if (thrd_read_map.size() <= tid)
+ return 0xdeadbeef;
+
+ read_map_t * read_map = thrd_read_map[tid];
+
+ /* last read value not found */
+ if ( !read_map->contains(location) )
+ return 0xdeadbeef;
+
+ uint64_t read_val = read_map->get(location);
+ return read_val;
+}
+
+/* @param tid thread id
+ * Reset read map for a thread. This function shall only be called
+ * when a thread exits a function
+ */
+void FuncNode::clear_read_map(uint32_t tid)
+{
+ if (thrd_read_map.size() <= tid)
+ return;
+
+ thrd_read_map[tid]->reset();
+}
+
+void FuncNode::generate_predicate(FuncInst *func_inst)
+{
+
+}
+
+/* @param tid thread id
+ * Print the values read by the last read actions for each memory location
+ */
+void FuncNode::print_last_read(uint32_t tid)
+{
+ ASSERT(thrd_read_map.size() > tid);
+ read_map_t * read_map = thrd_read_map[tid];
+
+ mllnode<void *> * it;
+ for (it = read_locations.begin();it != NULL;it=it->getNext()) {
+ if ( !read_map->contains(it->getVal()) )
+ break;
+
+ uint64_t read_val = read_map->get(it->getVal());
+ model_print("last read of thread %d at %p: 0x%x\n", tid, it->getVal(), read_val);
+ }
+}
projects / c11tester.git / blobdiff