Home | History | Annotate | Download | only in simpleperf 
      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 SIMPLE_PERF_INPLACE_SAMPLER_LIB_H_
     18 #define SIMPLE_PERF_INPLACE_SAMPLER_LIB_H_
     19 
     20 enum InplaceSamplerMessageType {
     21   START_PROFILING,
     22   START_PROFILING_REPLY,
     23   THREAD_INFO,
     24   MAP_INFO,
     25   SAMPLE_INFO,
     26   END_PROFILING,
     27   END_PROFILING_REPLY,
     28 };
     29 
     30 // Type: START_PROFILING
     31 // Direction: simpleperf to inplace_sampler
     32 // Data:
     33 //   char options[];  // ended by '\0'
     34 //
     35 // options[] contains space separated options like below:
     36 //   freq=4000 # sample at 4000/s.
     37 //   signal=14  # use signal 14 to raise sample recording.
     38 //   tids=1432,1433  # take samples of thread 1432,1433.
     39 
     40 
     41 // Type: START_PROFILING_REPLY
     42 // Direction: inplace_sampler to simpleperf
     43 // Data:
     44 //   char reply[]; // ended by '\0'
     45 // reply[] contains a string, which is either 'ok' or 'error'
     46 
     47 // Type: THREAD_INFO
     48 // Direction: inplace_sampler to simpleperf
     49 // Data:
     50 //  uint64_t time;
     51 //  uint32_t tid;
     52 //  char thread_name[];  // ended by '\0'
     53 
     54 // Type: MAP_INFO
     55 // Direction: inplace_sampler to simpleperf
     56 // Data:
     57 //  uint64_t time;
     58 //  uint64_t start;
     59 //  uint64_t len;
     60 //  uint64_t pgoff;
     61 //  char[] dso;  // ended by '\0'
     62 
     63 // Type: SAMPLE_INFO
     64 // Direction: inplace_sampler to simpleperf
     65 // Data:
     66 //  uint64_t time;
     67 //  uint32_t tid;
     68 //  uint32_t period;
     69 //  uint32_t ip_nr;
     70 //  uint64_t ip[ip_nr];
     71 
     72 // Type: END_PROFILING
     73 // Direction: simpleperf to inplace_sampler
     74 // Data:
     75 //   None.
     76 
     77 // Type: END_PROFILING_REPLY
     78 // Direction: inplace_sampler to simpleperf
     79 // Data:
     80 //   uint64_t used_cpu_time;
     81 //   uint64_t lost_samples;
     82 
     83 
     84 #endif  // SIMPLE_PERF_INPLACE_SAMPLER_LIB_H_
     85