typedef void (*VoidFuncPtr)();
void snapshot_system_init(unsigned int numbackingpages,
unsigned int numsnapshots, unsigned int nummemoryregions,
typedef void (*VoidFuncPtr)();
void snapshot_system_init(unsigned int numbackingpages,
unsigned int numsnapshots, unsigned int nummemoryregions,
void snapshot_stack_init();
void snapshot_record(int seq_index);
int snapshot_backtrack_before(int seq_index);
void snapshot_stack_init();
void snapshot_record(int seq_index);
int snapshot_backtrack_before(int seq_index);