tools/memory_inspector/classification_rules/default/mmap-android.py

   1 # Copyright 2014 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 # This is a generic rule-tree for classifying memory maps on Android. It is a
   6 # simple hierarchical python data structure (list of dictionaries). Some rules:
   7 # - Order matters: what is caught by a node is not caught by its siblings.
   8 # - Hierarchy matters: what is caught by a node is propagated to its children
   9 #   (if any). Only one of its children, though, will get the data.
  10 # - Non leaf nodes have an extra implicit node called {node-name}-other: if
  11 #   something is caught by a non leaf node, but none of its children, it is
  12 #   appended to implicit {node-name}-other catch-all children.
  13 #
  14 # See memory_inspector/classification/mmap_classifier.py for more docs.
  15
  16 [
  17 {
  18   'name': 'Anon',
  19   'mmap_file': r'(^$)|(^\[)',
  20   'children': [
  21     {
  22       'name': 'stack',
  23       'mmap_file': r'\[stack',
  24     },
  25     {
  26       'name': 'libc malloc',
  27       'mmap_file': 'libc_malloc',
  28     },
  29     {
  30       'name': 'JIT',
  31       'mmap_prot': 'r.x',
  32     },
  33   ],
  34 },
  35 {
  36   'name': 'Ashmem',
  37   'mmap_file': r'^/dev/ashmem',
  38   'children': [
  39     {
  40       'name': 'Dalvik',
  41       'mmap_file': r'^/dev/ashmem/dalvik',
  42       'children': [
  43         {
  44           'name': 'Java Heap',
  45           'mmap_file': r'dalvik-heap',
  46         },
  47         {
  48           'name': 'JIT',
  49           'mmap_prot': 'r.x',
  50         },
  51       ],
  52     },
  53   ],
  54 },
  55 {
  56   'name': 'Libs',
  57   'mmap_file': r'(\.so)|(\.apk)|(\.jar)',
  58   'children': [
  59     {
  60       'name': 'Native',
  61       'mmap_file': r'\.so',
  62     },
  63     {
  64       'name': 'APKs',
  65       'mmap_file': r'\.apk',
  66     },
  67     {
  68       'name': 'JARs',
  69       'mmap_file': r'\.jar',
  70     },
  71   ],
  72 },
  73 {
  74   'name': 'Devices',
  75   'mmap_file': r'^/dev/',
  76   'children': [
  77     {
  78       'name': 'GPU',
  79       'mmap_file': r'(nv)|(mali)|(kgsl)',
  80     },
  81   ],
  82 },
  83 ]