profiler/proto/simplerperf_report.proto

// Note: this is must be kept in sync with /system/extra/simpleperf/report_sample.proto

// The file format generated by report_sample.proto is as below:
// LittleEndian32(record_size_0)
// message Record(record_0) (having record_size_0 bytes)
// LittleEndian32(record_size_1)
// message Record(record_1) (having record_size_1 bytes)
// ...
// LittleEndian32(record_size_N)
// message Record(record_N) (having record_size_N bytes)
// LittleEndian32(0)

syntax = "proto3";

package simpleperf_report_proto;
option java_package = "com.android.tools.profiler.proto";
option java_outer_classname = "SimpleperfReport";

message Sample {
  uint64 time = 1; // Exceptionnaly allow unsigned since this proto is from simpleperf.
  message CallChainEntry {
    uint64 ip = 1; // Exceptionnaly allow unsigned since this proto is from simpleperf.
    string symbol = 2;
    string file = 3;
  }

  repeated CallChainEntry callchain = 2;
  int32 thread_id = 3;
}

message Record {
  enum Type {
    UNKOWN = 0;
    SAMPLE = 1;
  }

  // Identifies which field is filled in.
  Type type = 1;

  // One of the following will be filled in.
  Sample sample = 2;
}