Skip unsupported event when parsing perf data.

chromiumos-wide-profiling/buffer_reader.h

@@ -19,8 +19,12 @@ class BufferReader : public DataReader {
     size_ = size;
   }
 
-  void SeekSet(size_t offset) override {
+  bool SeekSet(size_t offset) override {
+    if (offset >= size_) {
+      return false;
+    }
     offset_ = offset;
+    return true;
   }
 
   size_t Tell() const override {

chromiumos-wide-profiling/data_reader.h

@@ -17,7 +17,7 @@ class DataReader {
 
   // Moves the data read pointer to |offset| bytes from the beginning of the
   // data.
-  virtual void SeekSet(size_t offset) = 0;
+  virtual bool SeekSet(size_t offset) = 0;
 
   // Returns the position of the data read pointer, in bytes from the beginning
   // of the data.

chromiumos-wide-profiling/perf_parser.cc

@@ -237,7 +237,10 @@ void PerfParser::MaybeSortParsedEvents() {
     event_and_time->event = &parsed_event;
 
     struct perf_sample sample_info;
-    CHECK(reader_.ReadPerfSampleInfo(*parsed_event.raw_event, &sample_info));
+    if (reader_.ReadPerfSampleInfo(*parsed_event.raw_event, &sample_info) == false) {
+      LOG(ERROR) << "Skip one unsupported event." ;
+      continue;
+    }
     event_and_time->time = sample_info.time;
 
     events_and_times.emplace_back(std::move(event_and_time));

chromiumos-wide-profiling/perf_reader.cc

@@ -1318,7 +1318,9 @@ bool PerfReader::ReadMetadata(DataReader* data) {
   for (u32 type = HEADER_FIRST_FEATURE; type != HEADER_LAST_FEATURE; ++type) {
     if ((metadata_mask_ & (1 << type)) == 0)
       continue;
-    data->SeekSet(section_iter->offset);
+    if (data->SeekSet(section_iter->offset) == false) {
+      continue;
+    }
     u64 size = section_iter->size;
 
     switch (type) {