1 # Copyright (c) 2012 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.
8 _MAPS_PATTERN = re.compile(
9 r'^([a-f0-9]+)-([a-f0-9]+)\s+(.)(.)(.)(.)\s+([a-f0-9]+)\s+(\S+):(\S+)\s+'
10 r'(\d+)\s*(.*)$', re.IGNORECASE)
13 class ProcMapsEntry(object):
14 """A class representing one line in /proc/.../maps."""
17 self, begin, end, readable, writable, executable, private, offset,
18 major, minor, inode, name):
21 self.readable = readable
22 self.writable = writable
23 self.executable = executable
24 self.private = private
35 'readable': self.readable,
36 'writable': self.writable,
37 'executable': self.executable,
38 'private': self.private,
39 'offset': self.offset,
47 class ProcMaps(object):
48 """A class representing contents in /proc/.../maps."""
51 self._sorted_indexes = []
55 def iter(self, condition):
57 self._sorted_indexes.sort()
59 for index in self._sorted_indexes:
60 if not condition or condition(self._dictionary[index]):
61 yield self._dictionary[index]
65 self._sorted_indexes.sort()
67 for index in self._sorted_indexes:
68 yield self._dictionary[index]
74 table.append_line(line)
77 def append_line(self, line):
78 entry = self.parse_line(line)
80 self._append_entry(entry)
84 matched = _MAPS_PATTERN.match(line)
86 return ProcMapsEntry( # pylint: disable=W0212
87 int(matched.group(1), 16), # begin
88 int(matched.group(2), 16), # end
89 matched.group(3), # readable
90 matched.group(4), # writable
91 matched.group(5), # executable
92 matched.group(6), # private
93 int(matched.group(7), 16), # offset
94 matched.group(8), # major
95 matched.group(9), # minor
96 int(matched.group(10), 10), # inode
97 matched.group(11) # name
103 def constants(entry):
104 return (entry.writable == '-' and entry.executable == '-' and re.match(
105 '\S+(\.(so|dll|dylib|bundle)|chrome)((\.\d+)+\w*(\.\d+){0,3})?',
109 def executable(entry):
110 return (entry.executable == 'x' and re.match(
111 '\S+(\.(so|dll|dylib|bundle)|chrome)((\.\d+)+\w*(\.\d+){0,3})?',
115 def executable_and_constants(entry):
116 return (((entry.writable == '-' and entry.executable == '-') or
117 entry.executable == 'x') and re.match(
118 '\S+(\.(so|dll|dylib|bundle)|chrome)((\.\d+)+\w*(\.\d+){0,3})?',
121 def _append_entry(self, entry):
122 if self._sorted_indexes and self._sorted_indexes[-1] > entry.begin:
124 self._sorted_indexes.append(entry.begin)
125 self._dictionary[entry.begin] = entry