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| 1 | +#!/usr/bin/env python |
| 2 | +# |
| 3 | +# Copyright 2009 the V8 project authors. All rights reserved. |
| 4 | +# Redistribution and use in source and binary forms, with or without |
| 5 | +# modification, are permitted provided that the following conditions are |
| 6 | +# met: |
| 7 | +# |
| 8 | +# * Redistributions of source code must retain the above copyright |
| 9 | +# notice, this list of conditions and the following disclaimer. |
| 10 | +# * Redistributions in binary form must reproduce the above |
| 11 | +# copyright notice, this list of conditions and the following |
| 12 | +# disclaimer in the documentation and/or other materials provided |
| 13 | +# with the distribution. |
| 14 | +# * Neither the name of Google Inc. nor the names of its |
| 15 | +# contributors may be used to endorse or promote products derived |
| 16 | +# from this software without specific prior written permission. |
| 17 | +# |
| 18 | +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 | +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 | +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 | +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 | +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 | +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 | +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 | +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 | +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | + |
| 30 | +# Simple wrapper for running valgrind and checking the output on |
| 31 | +# stderr for memory leaks. |
| 32 | +# Uses valgrind from third_party/valgrind. Assumes the executable is passed |
| 33 | +# with a path relative to the v8 root. |
| 34 | + |
| 35 | + |
| 36 | +from os import path |
| 37 | +import platform |
| 38 | +import re |
| 39 | +import subprocess |
| 40 | +import sys |
| 41 | + |
| 42 | +V8_ROOT = path.dirname(path.dirname(path.abspath(__file__))) |
| 43 | +MACHINE = 'linux_x64' if platform.machine() == 'x86_64' else 'linux_x86' |
| 44 | +VALGRIND_ROOT = path.join(V8_ROOT, 'third_party', 'valgrind', MACHINE) |
| 45 | +VALGRIND_BIN = path.join(VALGRIND_ROOT, 'bin', 'valgrind') |
| 46 | +VALGRIND_LIB = path.join(VALGRIND_ROOT, 'lib', 'valgrind') |
| 47 | + |
| 48 | +VALGRIND_ARGUMENTS = [ |
| 49 | + VALGRIND_BIN, |
| 50 | + '--error-exitcode=1', |
| 51 | + '--leak-check=full', |
| 52 | + '--smc-check=all', |
| 53 | +] |
| 54 | + |
| 55 | +if len(sys.argv) < 2: |
| 56 | + print 'Please provide an executable to analyze.' |
| 57 | + sys.exit(1) |
| 58 | + |
| 59 | +executable = path.join(V8_ROOT, sys.argv[1]) |
| 60 | +if not path.exists(executable): |
| 61 | + print 'Cannot find the file specified: %s' % executable |
| 62 | + sys.exit(1) |
| 63 | + |
| 64 | +# Compute the command line. |
| 65 | +command = VALGRIND_ARGUMENTS + [executable] + sys.argv[2:] |
| 66 | + |
| 67 | +# Run valgrind. |
| 68 | +process = subprocess.Popen( |
| 69 | + command, |
| 70 | + stderr=subprocess.PIPE, |
| 71 | + env={'VALGRIND_LIB': VALGRIND_LIB} |
| 72 | +) |
| 73 | +code = process.wait(); |
| 74 | +errors = process.stderr.readlines(); |
| 75 | + |
| 76 | +# If valgrind produced an error, we report that to the user. |
| 77 | +if code != 0: |
| 78 | + sys.stderr.writelines(errors) |
| 79 | + sys.exit(code) |
| 80 | + |
| 81 | +# Look through the leak details and make sure that we don't |
| 82 | +# have any definitely, indirectly, and possibly lost bytes. |
| 83 | +LEAK_RE = r"(?:definitely|indirectly|possibly) lost: " |
| 84 | +LEAK_LINE_MATCHER = re.compile(LEAK_RE) |
| 85 | +LEAK_OKAY_MATCHER = re.compile(r"lost: 0 bytes in 0 blocks") |
| 86 | +leaks = [] |
| 87 | +for line in errors: |
| 88 | + if LEAK_LINE_MATCHER.search(line): |
| 89 | + leaks.append(line) |
| 90 | + if not LEAK_OKAY_MATCHER.search(line): |
| 91 | + sys.stderr.writelines(errors) |
| 92 | + sys.exit(1) |
| 93 | + |
| 94 | +# Make sure we found between 2 and 3 leak lines. |
| 95 | +if len(leaks) < 2 or len(leaks) > 3: |
| 96 | + sys.stderr.writelines(errors) |
| 97 | + sys.stderr.write('\n\n#### Malformed valgrind output.\n#### Exiting.\n') |
| 98 | + sys.exit(1) |
| 99 | + |
| 100 | +# No leaks found. |
| 101 | +sys.stderr.writelines(errors) |
| 102 | +sys.exit(0) |
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