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436 lines
15 KiB
Python
436 lines
15 KiB
Python
#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import with_statement
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import glob, logging, os, platform, shutil, subprocess, sys, tempfile, urllib2, zipfile
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import re
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from urlparse import urlparse
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__all__ = [
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"ZipFileReader",
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"addCommonOptions",
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"checkForCrashes",
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"dumpLeakLog",
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"isURL",
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"processLeakLog",
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"getDebuggerInfo",
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"DEBUGGER_INFO",
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"replaceBackSlashes",
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"wrapCommand",
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]
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# Map of debugging programs to information about them, like default arguments
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# and whether or not they are interactive.
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DEBUGGER_INFO = {
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# gdb requires that you supply the '--args' flag in order to pass arguments
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# after the executable name to the executable.
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"gdb": {
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"interactive": True,
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"args": "-q --args"
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},
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# valgrind doesn't explain much about leaks unless you set the
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# '--leak-check=full' flag.
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"valgrind": {
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"interactive": False,
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"args": "--leak-check=full"
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}
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}
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class ZipFileReader(object):
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"""
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Class to read zip files in Python 2.5 and later. Limited to only what we
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actually use.
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"""
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def __init__(self, filename):
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self._zipfile = zipfile.ZipFile(filename, "r")
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def __del__(self):
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self._zipfile.close()
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def _getnormalizedpath(self, path):
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"""
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Gets a normalized path from 'path' (or the current working directory if
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'path' is None). Also asserts that the path exists.
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"""
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if path is None:
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path = os.curdir
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path = os.path.normpath(os.path.expanduser(path))
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assert os.path.isdir(path)
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return path
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def _extractname(self, name, path):
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"""
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Extracts a file with the given name from the zip file to the given path.
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Also creates any directories needed along the way.
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"""
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filename = os.path.normpath(os.path.join(path, name))
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if name.endswith("/"):
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os.makedirs(filename)
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else:
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path = os.path.split(filename)[0]
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if not os.path.isdir(path):
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os.makedirs(path)
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with open(filename, "wb") as dest:
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dest.write(self._zipfile.read(name))
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def namelist(self):
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return self._zipfile.namelist()
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def read(self, name):
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return self._zipfile.read(name)
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def extract(self, name, path = None):
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if hasattr(self._zipfile, "extract"):
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return self._zipfile.extract(name, path)
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# This will throw if name is not part of the zip file.
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self._zipfile.getinfo(name)
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self._extractname(name, self._getnormalizedpath(path))
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def extractall(self, path = None):
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if hasattr(self._zipfile, "extractall"):
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return self._zipfile.extractall(path)
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path = self._getnormalizedpath(path)
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for name in self._zipfile.namelist():
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self._extractname(name, path)
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log = logging.getLogger()
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def isURL(thing):
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"""Return True if |thing| looks like a URL."""
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# We want to download URLs like http://... but not Windows paths like c:\...
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return len(urlparse(thing).scheme) >= 2
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def addCommonOptions(parser, defaults={}):
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parser.add_option("--xre-path",
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action = "store", type = "string", dest = "xrePath",
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# individual scripts will set a sane default
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default = None,
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help = "absolute path to directory containing XRE (probably xulrunner)")
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if 'SYMBOLS_PATH' not in defaults:
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defaults['SYMBOLS_PATH'] = None
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parser.add_option("--symbols-path",
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action = "store", type = "string", dest = "symbolsPath",
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default = defaults['SYMBOLS_PATH'],
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help = "absolute path to directory containing breakpad symbols, or the URL of a zip file containing symbols")
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parser.add_option("--debugger",
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action = "store", dest = "debugger",
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help = "use the given debugger to launch the application")
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parser.add_option("--debugger-args",
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action = "store", dest = "debuggerArgs",
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help = "pass the given args to the debugger _before_ "
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"the application on the command line")
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parser.add_option("--debugger-interactive",
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action = "store_true", dest = "debuggerInteractive",
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help = "prevents the test harness from redirecting "
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"stdout and stderr for interactive debuggers")
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def checkForCrashes(dumpDir, symbolsPath, testName=None):
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stackwalkPath = os.environ.get('MINIDUMP_STACKWALK', None)
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# try to get the caller's filename if no test name is given
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if testName is None:
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try:
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testName = os.path.basename(sys._getframe(1).f_code.co_filename)
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except:
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testName = "unknown"
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# Check preconditions
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dumps = glob.glob(os.path.join(dumpDir, '*.dmp'))
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if len(dumps) == 0:
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return False
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removeSymbolsPath = False
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# If our symbols are at a remote URL, download them now
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if symbolsPath and isURL(symbolsPath):
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print "Downloading symbols from: " + symbolsPath
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removeSymbolsPath = True
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# Get the symbols and write them to a temporary zipfile
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data = urllib2.urlopen(symbolsPath)
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symbolsFile = tempfile.TemporaryFile()
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symbolsFile.write(data.read())
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# extract symbols to a temporary directory (which we'll delete after
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# processing all crashes)
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symbolsPath = tempfile.mkdtemp()
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zfile = ZipFileReader(symbolsFile)
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zfile.extractall(symbolsPath)
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try:
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for d in dumps:
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stackwalkOutput = []
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stackwalkOutput.append("Crash dump filename: " + d)
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topFrame = None
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if symbolsPath and stackwalkPath and os.path.exists(stackwalkPath):
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# run minidump stackwalk
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p = subprocess.Popen([stackwalkPath, d, symbolsPath],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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(out, err) = p.communicate()
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if len(out) > 3:
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# minidump_stackwalk is chatty, so ignore stderr when it succeeds.
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stackwalkOutput.append(out)
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# The top frame of the crash is always the line after "Thread N (crashed)"
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# Examples:
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# 0 libc.so + 0xa888
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# 0 libnss3.so!nssCertificate_Destroy [certificate.c : 102 + 0x0]
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# 0 mozjs.dll!js::GlobalObject::getDebuggers() [GlobalObject.cpp:89df18f9b6da : 580 + 0x0]
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# 0 libxul.so!void js::gc::MarkInternal<JSObject>(JSTracer*, JSObject**) [Marking.cpp : 92 + 0x28]
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lines = out.splitlines()
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for i, line in enumerate(lines):
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if "(crashed)" in line:
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match = re.search(r"^ 0 (?:.*!)?(?:void )?([^\[]+)", lines[i+1])
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if match:
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topFrame = "@ %s" % match.group(1).strip()
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break
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else:
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stackwalkOutput.append("stderr from minidump_stackwalk:")
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stackwalkOutput.append(err)
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if p.returncode != 0:
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stackwalkOutput.append("minidump_stackwalk exited with return code %d" % p.returncode)
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else:
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if not symbolsPath:
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stackwalkOutput.append("No symbols path given, can't process dump.")
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if not stackwalkPath:
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stackwalkOutput.append("MINIDUMP_STACKWALK not set, can't process dump.")
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elif stackwalkPath and not os.path.exists(stackwalkPath):
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stackwalkOutput.append("MINIDUMP_STACKWALK binary not found: %s" % stackwalkPath)
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if not topFrame:
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topFrame = "Unknown top frame"
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log.info("PROCESS-CRASH | %s | application crashed [%s]", testName, topFrame)
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print '\n'.join(stackwalkOutput)
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dumpSavePath = os.environ.get('MINIDUMP_SAVE_PATH', None)
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if dumpSavePath:
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shutil.move(d, dumpSavePath)
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print "Saved dump as %s" % os.path.join(dumpSavePath,
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os.path.basename(d))
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else:
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os.remove(d)
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extra = os.path.splitext(d)[0] + ".extra"
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if os.path.exists(extra):
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os.remove(extra)
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finally:
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if removeSymbolsPath:
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shutil.rmtree(symbolsPath)
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return True
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def getFullPath(directory, path):
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"Get an absolute path relative to 'directory'."
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return os.path.normpath(os.path.join(directory, os.path.expanduser(path)))
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def searchPath(directory, path):
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"Go one step beyond getFullPath and try the various folders in PATH"
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# Try looking in the current working directory first.
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newpath = getFullPath(directory, path)
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if os.path.isfile(newpath):
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return newpath
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# At this point we have to fail if a directory was given (to prevent cases
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# like './gdb' from matching '/usr/bin/./gdb').
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if not os.path.dirname(path):
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for dir in os.environ['PATH'].split(os.pathsep):
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newpath = os.path.join(dir, path)
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if os.path.isfile(newpath):
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return newpath
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return None
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def getDebuggerInfo(directory, debugger, debuggerArgs, debuggerInteractive = False):
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debuggerInfo = None
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if debugger:
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debuggerPath = searchPath(directory, debugger)
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if not debuggerPath:
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print "Error: Path %s doesn't exist." % debugger
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sys.exit(1)
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debuggerName = os.path.basename(debuggerPath).lower()
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def getDebuggerInfo(type, default):
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if debuggerName in DEBUGGER_INFO and type in DEBUGGER_INFO[debuggerName]:
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return DEBUGGER_INFO[debuggerName][type]
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return default
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debuggerInfo = {
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"path": debuggerPath,
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"interactive" : getDebuggerInfo("interactive", False),
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"args": getDebuggerInfo("args", "").split()
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}
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if debuggerArgs:
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debuggerInfo["args"] = debuggerArgs.split()
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if debuggerInteractive:
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debuggerInfo["interactive"] = debuggerInteractive
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return debuggerInfo
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def dumpLeakLog(leakLogFile, filter = False):
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"""Process the leak log, without parsing it.
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Use this function if you want the raw log only.
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Use it preferably with the |XPCOM_MEM_LEAK_LOG| environment variable.
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"""
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# Don't warn (nor "info") if the log file is not there.
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if not os.path.exists(leakLogFile):
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return
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leaks = open(leakLogFile, "r")
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leakReport = leaks.read()
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leaks.close()
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# Only |XPCOM_MEM_LEAK_LOG| reports can be actually filtered out.
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# Only check whether an actual leak was reported.
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if filter and not "0 TOTAL " in leakReport:
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return
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# Simply copy the log.
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log.info(leakReport.rstrip("\n"))
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def processSingleLeakFile(leakLogFileName, PID, processType, leakThreshold):
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"""Process a single leak log, corresponding to the specified
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process PID and type.
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"""
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# Per-Inst Leaked Total Rem ...
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# 0 TOTAL 17 192 419115886 2 ...
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# 833 nsTimerImpl 60 120 24726 2 ...
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lineRe = re.compile(r"^\s*\d+\s+(?P<name>\S+)\s+"
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r"(?P<size>-?\d+)\s+(?P<bytesLeaked>-?\d+)\s+"
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r"-?\d+\s+(?P<numLeaked>-?\d+)")
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processString = ""
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if PID and processType:
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processString = "| %s process %s " % (processType, PID)
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leaks = open(leakLogFileName, "r")
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for line in leaks:
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matches = lineRe.match(line)
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if (matches and
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int(matches.group("numLeaked")) == 0 and
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matches.group("name") != "TOTAL"):
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continue
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log.info(line.rstrip())
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leaks.close()
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leaks = open(leakLogFileName, "r")
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seenTotal = False
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crashedOnPurpose = False
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prefix = "TEST-PASS"
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numObjects = 0
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for line in leaks:
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if line.find("purposefully crash") > -1:
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crashedOnPurpose = True
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matches = lineRe.match(line)
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if not matches:
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continue
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name = matches.group("name")
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size = int(matches.group("size"))
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bytesLeaked = int(matches.group("bytesLeaked"))
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numLeaked = int(matches.group("numLeaked"))
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if size < 0 or bytesLeaked < 0 or numLeaked < 0:
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log.info("TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | negative leaks caught!" %
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processString)
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if name == "TOTAL":
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seenTotal = True
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elif name == "TOTAL":
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seenTotal = True
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# Check for leaks.
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if bytesLeaked < 0 or bytesLeaked > leakThreshold:
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prefix = "TEST-UNEXPECTED-FAIL"
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leakLog = "TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | leaked" \
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" %d bytes during test execution" % (processString, bytesLeaked)
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elif bytesLeaked > 0:
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leakLog = "TEST-PASS %s| automationutils.processLeakLog() | WARNING leaked" \
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" %d bytes during test execution" % (processString, bytesLeaked)
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else:
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leakLog = "TEST-PASS %s| automationutils.processLeakLog() | no leaks detected!" \
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% processString
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# Remind the threshold if it is not 0, which is the default/goal.
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if leakThreshold != 0:
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leakLog += " (threshold set at %d bytes)" % leakThreshold
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# Log the information.
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log.info(leakLog)
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else:
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if numLeaked != 0:
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if numLeaked > 1:
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instance = "instances"
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rest = " each (%s bytes total)" % matches.group("bytesLeaked")
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else:
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instance = "instance"
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rest = ""
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numObjects += 1
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if numObjects > 5:
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# don't spam brief tinderbox logs with tons of leak output
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prefix = "TEST-INFO"
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log.info("%(prefix)s %(process)s| automationutils.processLeakLog() | leaked %(numLeaked)d %(instance)s of %(name)s "
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"with size %(size)s bytes%(rest)s" %
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{ "prefix": prefix,
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"process": processString,
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"numLeaked": numLeaked,
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"instance": instance,
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"name": name,
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"size": matches.group("size"),
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"rest": rest })
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if not seenTotal:
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if crashedOnPurpose:
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log.info("INFO | automationutils.processLeakLog() | process %s was " \
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"deliberately crashed and thus has no leak log" % PID)
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else:
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log.info("TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | missing output line for total leaks!" %
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processString)
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leaks.close()
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def processLeakLog(leakLogFile, leakThreshold = 0):
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"""Process the leak log, including separate leak logs created
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by child processes.
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Use this function if you want an additional PASS/FAIL summary.
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It must be used with the |XPCOM_MEM_BLOAT_LOG| environment variable.
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"""
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if not os.path.exists(leakLogFile):
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log.info("WARNING | automationutils.processLeakLog() | refcount logging is off, so leaks can't be detected!")
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return
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(leakLogFileDir, leakFileBase) = os.path.split(leakLogFile)
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pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*)$")
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if leakFileBase[-4:] == ".log":
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leakFileBase = leakFileBase[:-4]
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pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*).log$")
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for fileName in os.listdir(leakLogFileDir):
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if fileName.find(leakFileBase) != -1:
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thisFile = os.path.join(leakLogFileDir, fileName)
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processPID = 0
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processType = None
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m = pidRegExp.search(fileName)
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if m:
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processType = m.group(1)
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processPID = m.group(2)
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processSingleLeakFile(thisFile, processPID, processType, leakThreshold)
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def replaceBackSlashes(input):
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return input.replace('\\', '/')
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def wrapCommand(cmd):
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"""
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If running on OS X 10.5 or older, wrap |cmd| so that it will
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be executed as an i386 binary, in case it's a 32-bit/64-bit universal
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binary.
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"""
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if platform.system() == "Darwin" and \
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hasattr(platform, 'mac_ver') and \
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platform.mac_ver()[0][:4] < '10.6':
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return ["arch", "-arch", "i386"] + cmd
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# otherwise just execute the command normally
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return cmd
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