1/* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17syntax = "proto2"; 18option optimize_for = LITE_RUNTIME; 19package perfetto.protos; 20 21import "perfetto/common/android_log_constants.proto"; 22 23message AndroidLogPacket { 24 message LogEvent { 25 // The log buffer (e.g. MAIN, SYSTEM, RADIO) the event comes from. 26 optional AndroidLogId log_id = 1; 27 28 // PID (TGID), TID and UID of the task that emitted the event. 29 optional int32 pid = 2; 30 optional int32 tid = 3; 31 optional int32 uid = 4; 32 33 // Timestamp [ns]. The clock source is CLOCK_REALTIME, unlike many other 34 // Perfetto trace events that instead use CLOCK_BOOTTIME. The trace 35 // processor will take care of realigning clocks using the ClockSnapshot(s). 36 optional uint64 timestamp = 5; 37 38 // When log_id == LID_EVENTS, |tag| corresponds to the event name defined in 39 // the second column of /system/etc/event-log-tags. For all other events, 40 // |tag| is the app-specified argument passed to __android_log_write(). 41 optional string tag = 6; 42 43 // Empty when log_id == LID_EVENTS. 44 optional AndroidLogPriority prio = 7; 45 46 // Empty when log_id == LID_EVENTS. 47 optional string message = 8; 48 49 message Arg { 50 optional string name = 1; 51 oneof value { 52 int64 int_value = 2; 53 float float_value = 3; 54 string string_value = 4; 55 } 56 } 57 // Only populated when log_id == LID_EVENTS. 58 repeated Arg args = 9; 59 } 60 61 repeated LogEvent events = 1; 62 63 // Stats are emitted only upon Flush() and are monotonic (i.e. they are 64 // absolute counters since the beginning of the lifetime of the tracing 65 // session and NOT relative to the previous Stats snapshot). 66 message Stats { 67 // Total number of log events seen, including errors and skipped entries 68 // (num of events stored in the trace = total - failed - skipped). 69 optional uint64 num_total = 1; 70 71 // Parser failures. 72 optional uint64 num_failed = 2; 73 74 // Messages skipped due to filters. 75 optional uint64 num_skipped = 3; 76 } 77 optional Stats stats = 2; 78} 79