#include "dso.h"
+namespace simpleperf {
+
struct MapEntry {
uint64_t start_addr;
uint64_t len;
Symbol unknown_symbol_;
};
+} // namespace simpleperf
+
+using MapEntry = simpleperf::MapEntry;
+using ThreadEntry = simpleperf::ThreadEntry;
+using ThreadTree = simpleperf::ThreadTree;
+
struct Record;
void BuildThreadTree(const Record& record, ThreadTree* thread_tree);