3532 	fprintf(fp, "# data offset    : %" PRIu64 "\n", header->data_offset);  in perf_header__fprintf_info()
3700 		if (!header->data_offset && header->data_size) {  in perf_session__do_write_header()
3705 		header->feat_offset = header->data_offset + header->data_size;  in perf_session__do_write_header()
3754 	if (!header->data_offset) {  in perf_session__do_write_header()
3756 			header->data_offset = sizeof(f_header);  in perf_session__do_write_header()
3758 			header->data_offset = attr_offset + attr_size;  in perf_session__do_write_header()
3760 	header->feat_offset = header->data_offset + header->data_size;  in perf_session__do_write_header()
3778 			.offset = header->data_offset,  in perf_session__do_write_header()
3811 	size_t data_offset;  in perf_session__data_offset()  local
3813 	data_offset = sizeof(struct perf_file_header);  in perf_session__data_offset()
3815 		data_offset += evsel->core.ids * sizeof(u64);  in perf_session__data_offset()
3817 	data_offset += evlist->core.nr_entries * sizeof(struct perf_file_attr);  in perf_session__data_offset()
3819 	return data_offset;  in perf_session__data_offset()
4084 	ph->data_offset  = header->data.offset;  in perf_file_header__read()