Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 32 | # Uses valgrind from third_party/valgrind. Assumes the executable is passed |
| 33 | # with a path relative to the v8 root. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 35 | |
| 36 | from os import path |
| 37 | import platform |
| 38 | import re |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 39 | import subprocess |
| 40 | import sys |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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') |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 47 | |
| 48 | VALGRIND_ARGUMENTS = [ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 49 | VALGRIND_BIN, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 50 | '--error-exitcode=1', |
| 51 | '--leak-check=full', |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 52 | '--smc-check=all', |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 53 | ] |
| 54 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 64 | # Compute the command line. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | command = VALGRIND_ARGUMENTS + [executable] + sys.argv[2:] |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 66 | |
| 67 | # Run valgrind. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 68 | process = subprocess.Popen( |
| 69 | command, |
| 70 | stderr=subprocess.PIPE, |
| 71 | env={'VALGRIND_LIB': VALGRIND_LIB} |
| 72 | ) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 101 | sys.stderr.writelines(errors) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 102 | sys.exit(0) |