1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#!/usr/bin/env python
#
# Copyright 2009 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Simple wrapper for running valgrind and checking the output on
# stderr for memory leaks.
# Uses valgrind from third_party/valgrind. Assumes the executable is passed
# with a path relative to the v8 root.
from os import path
import platform
import re
import subprocess
import sys
V8_ROOT = path.dirname(path.dirname(path.abspath(__file__)))
VALGRIND_ARGUMENTS = [
'valgrind',
'--error-exitcode=1',
'--leak-check=full',
'--smc-check=all',
]
if len(sys.argv) < 2:
print 'Please provide an executable to analyze.'
sys.exit(1)
executable = path.join(V8_ROOT, sys.argv[1])
if not path.exists(executable):
print 'Cannot find the file specified: %s' % executable
sys.exit(1)
# Compute the command line.
command = VALGRIND_ARGUMENTS + [executable] + sys.argv[2:]
# Run valgrind.
process = subprocess.Popen(command, stderr=subprocess.PIPE)
code = process.wait();
errors = process.stderr.readlines();
# If valgrind produced an error, we report that to the user.
if code != 0:
sys.stderr.writelines(errors)
sys.exit(code)
# Look through the leak details and make sure that we don't
# have any definitely, indirectly, and possibly lost bytes.
LEAK_RE = r"(?:definitely|indirectly|possibly) lost: "
LEAK_LINE_MATCHER = re.compile(LEAK_RE)
LEAK_OKAY_MATCHER = re.compile(r"lost: 0 bytes in 0 blocks")
leaks = []
for line in errors:
if LEAK_LINE_MATCHER.search(line):
leaks.append(line)
if not LEAK_OKAY_MATCHER.search(line):
sys.stderr.writelines(errors)
sys.exit(1)
# Make sure we found between 2 and 3 leak lines.
if len(leaks) < 2 or len(leaks) > 3:
sys.stderr.writelines(errors)
sys.stderr.write('\n\n#### Malformed valgrind output.\n#### Exiting.\n')
sys.exit(1)
# No leaks found.
sys.stderr.writelines(errors)
sys.exit(0)
|
