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      1 /*
      2  * Copyright (C) 2017 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 
     17 #ifndef SRC_TRACED_PROBES_FTRACE_EVENT_INFO_H_
     18 #define SRC_TRACED_PROBES_FTRACE_EVENT_INFO_H_
     19 
     20 #include <vector>
     21 
     22 #include "perfetto/base/logging.h"
     23 #include "src/traced/probes/ftrace/event_info_constants.h"
     24 
     25 namespace perfetto {
     26 
     27 // The compile time information needed to read the raw ftrace buffer.
     28 // Specifically for each event we have a proto we fill:
     29 //  The event name (e.g. sched_switch)
     30 //  The event group  (e.g. sched)
     31 //  The proto field ID of this event in the FtraceEvent proto.
     32 //  For each field in the proto:
     33 //    The field name (e.g. prev_comm)
     34 //    The proto field id for this field
     35 //    The proto field type for this field (e.g. kProtoString or kProtoUint32)
     36 // The other fields: ftrace_event_id, ftrace_size, ftrace_offset, ftrace_type
     37 // are zeroed.
     38 std::vector<Event> GetStaticEventInfo();
     39 
     40 }  // namespace perfetto
     41 
     42 #endif  // SRC_TRACED_PROBES_FTRACE_EVENT_INFO_H_
     43