simpleperf/generate_event_type_table.py

   1 #!/usr/bin/python
   2 #
   3 # Copyright (C) 2015 The Android Open Source Project
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #      http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16 #
  17
  18
  19 def gen_event_type_entry_str(event_type_name, event_type, event_config):
  20   """
  21   return string like:
  22   {"cpu-cycles", PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES},
  23   """
  24   return '{"%s", %s, %s},\n' % (event_type_name, event_type, event_config)
  25
  26
  27 def gen_hardware_events():
  28   hardware_configs = ["cpu-cycles",
  29                       "instructions",
  30                       "cache-references",
  31                       "cache-misses",
  32                       "branch-instructions",
  33                       "branch-misses",
  34                       "bus-cycles",
  35                       "stalled-cycles-frontend",
  36                       "stalled-cycles-backend",
  37                       ]
  38   generated_str = ""
  39   for config in hardware_configs:
  40     event_type_name = config
  41     event_config = "PERF_COUNT_HW_" + config.replace('-', '_').upper()
  42
  43     generated_str += gen_event_type_entry_str(
  44         event_type_name, "PERF_TYPE_HARDWARE", event_config)
  45
  46   return generated_str
  47
  48
  49 def gen_software_events():
  50   software_configs = ["cpu-clock",
  51                       "task-clock",
  52                       "page-faults",
  53                       "context-switches",
  54                       "cpu-migrations",
  55                       ["minor-faults", "PERF_COUNT_SW_PAGE_FAULTS_MIN"],
  56                       ["major-faults", "PERF_COUNT_SW_PAGE_FAULTS_MAJ"],
  57                       "alignment-faults",
  58                       "emulation-faults",
  59                       ]
  60   generated_str = ""
  61   for config in software_configs:
  62     if isinstance(config, list):
  63       event_type_name = config[0]
  64       event_config = config[1]
  65     else:
  66       event_type_name = config
  67       event_config = "PERF_COUNT_SW_" + config.replace('-', '_').upper()
  68
  69     generated_str += gen_event_type_entry_str(
  70         event_type_name, "PERF_TYPE_SOFTWARE", event_config)
  71
  72   return generated_str
  73
  74
  75 def gen_hw_cache_events():
  76   hw_cache_types = [["L1-dcache", "PERF_COUNT_HW_CACHE_L1D"],
  77                     ["L1-icache", "PERF_COUNT_HW_CACHE_L1I"],
  78                     ["LLC", "PERF_COUNT_HW_CACHE_LL"],
  79                     ["dTLB", "PERF_COUNT_HW_CACHE_DTLB"],
  80                     ["iTLB", "PERF_COUNT_HW_CACHE_ITLB"],
  81                     ["branch", "PERF_COUNT_HW_CACHE_BPU"],
  82                     ["node", "PERF_COUNT_HW_CACHE_NODE"],
  83                     ]
  84   hw_cache_ops = [["loads", "load", "PERF_COUNT_HW_CACHE_OP_READ"],
  85                   ["stores", "store", "PERF_COUNT_HW_CACHE_OP_WRITE"],
  86                   ["prefetches", "prefetch",
  87                    "PERF_COUNT_HW_CACHE_OP_PREFETCH"],
  88                   ]
  89   hw_cache_op_results = [["accesses", "PERF_COUNT_HW_CACHE_RESULT_ACCESS"],
  90                          ["misses", "PERF_COUNT_HW_CACHE_RESULT_MISS"],
  91                          ]
  92   generated_str = ""
  93   for (type_name, type_config) in hw_cache_types:
  94     for (op_name_access, op_name_miss, op_config) in hw_cache_ops:
  95       for (result_name, result_config) in hw_cache_op_results:
  96         if result_name == "accesses":
  97           event_type_name = type_name + '-' + op_name_access
  98         else:
  99           event_type_name = type_name + '-' + \
 100               op_name_miss + '-' + result_name
 101         event_config = "((%s) | (%s << 8) | (%s << 16))" % (
 102             type_config, op_config, result_config)
 103         generated_str += gen_event_type_entry_str(
 104             event_type_name, "PERF_TYPE_HW_CACHE", event_config)
 105
 106   return generated_str
 107
 108
 109 def gen_events():
 110   generated_str = "// This file is auto-generated by generate-event_table.py.\n\n"
 111   generated_str += gen_hardware_events() + '\n'
 112   generated_str += gen_software_events() + '\n'
 113   generated_str += gen_hw_cache_events() + '\n'
 114   return generated_str
 115
 116 generated_str = gen_events()
 117 fh = open('event_type_table.h', 'w')
 118 fh.write(generated_str)
 119 fh.close()