gecko/build/automationutils.py
Jan de Mooij 332dd47a4c Bug 977921 - Override ASan malloc_context_size to save memory. r=decoder
--HG--
extra : rebase_source : 500882c214de079c1d493e21a9ee91c3da743226
2014-02-28 16:33:25 +01:00

637 lines
22 KiB
Python

#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import with_statement
import glob, logging, os, platform, shutil, subprocess, sys, tempfile, urllib2, zipfile
import base64
import re
from urlparse import urlparse
from operator import itemgetter
try:
import mozinfo
except ImportError:
# Stub out fake mozinfo since this is not importable on Android 4.0 Opt.
# This should be fixed; see
# https://bugzilla.mozilla.org/show_bug.cgi?id=650881
mozinfo = type('mozinfo', (), dict(info={}))()
mozinfo.isWin = mozinfo.isLinux = mozinfo.isUnix = mozinfo.isMac = False
# TODO! FILE: localautomation :/
# mapping from would-be mozinfo attr <-> sys.platform
mapping = {'isMac': ['mac', 'darwin'],
'isLinux': ['linux', 'linux2'],
'isWin': ['win32', 'win64'],
}
mapping = dict(sum([[(value, key) for value in values] for key, values in mapping.items()], []))
attr = mapping.get(sys.platform)
if attr:
setattr(mozinfo, attr, True)
if mozinfo.isLinux:
mozinfo.isUnix = True
__all__ = [
"ZipFileReader",
"addCommonOptions",
"dumpLeakLog",
"isURL",
"processLeakLog",
"getDebuggerInfo",
"DEBUGGER_INFO",
"replaceBackSlashes",
"wrapCommand",
'KeyValueParseError',
'parseKeyValue',
'systemMemory',
'environment',
'dumpScreen',
"ShutdownLeaks"
]
# Map of debugging programs to information about them, like default arguments
# and whether or not they are interactive.
DEBUGGER_INFO = {
# gdb requires that you supply the '--args' flag in order to pass arguments
# after the executable name to the executable.
"gdb": {
"interactive": True,
"args": "-q --args"
},
"cgdb": {
"interactive": True,
"args": "-q --args"
},
"lldb": {
"interactive": True,
"args": "--",
"requiresEscapedArgs": True
},
# valgrind doesn't explain much about leaks unless you set the
# '--leak-check=full' flag. But there are a lot of objects that are
# semi-deliberately leaked, so we set '--show-possibly-lost=no' to avoid
# uninteresting output from those objects. We set '--smc-check==all-non-file'
# and '--vex-iropt-register-updates=allregs-at-mem-access' so that valgrind
# deals properly with JIT'd JavaScript code.
"valgrind": {
"interactive": False,
"args": " ".join(["--leak-check=full",
"--show-possibly-lost=no",
"--smc-check=all-non-file,"
"--vex-iropt-register-updates=allregs-at-mem-access"])
}
}
class ZipFileReader(object):
"""
Class to read zip files in Python 2.5 and later. Limited to only what we
actually use.
"""
def __init__(self, filename):
self._zipfile = zipfile.ZipFile(filename, "r")
def __del__(self):
self._zipfile.close()
def _getnormalizedpath(self, path):
"""
Gets a normalized path from 'path' (or the current working directory if
'path' is None). Also asserts that the path exists.
"""
if path is None:
path = os.curdir
path = os.path.normpath(os.path.expanduser(path))
assert os.path.isdir(path)
return path
def _extractname(self, name, path):
"""
Extracts a file with the given name from the zip file to the given path.
Also creates any directories needed along the way.
"""
filename = os.path.normpath(os.path.join(path, name))
if name.endswith("/"):
os.makedirs(filename)
else:
path = os.path.split(filename)[0]
if not os.path.isdir(path):
os.makedirs(path)
with open(filename, "wb") as dest:
dest.write(self._zipfile.read(name))
def namelist(self):
return self._zipfile.namelist()
def read(self, name):
return self._zipfile.read(name)
def extract(self, name, path = None):
if hasattr(self._zipfile, "extract"):
return self._zipfile.extract(name, path)
# This will throw if name is not part of the zip file.
self._zipfile.getinfo(name)
self._extractname(name, self._getnormalizedpath(path))
def extractall(self, path = None):
if hasattr(self._zipfile, "extractall"):
return self._zipfile.extractall(path)
path = self._getnormalizedpath(path)
for name in self._zipfile.namelist():
self._extractname(name, path)
log = logging.getLogger()
def isURL(thing):
"""Return True if |thing| looks like a URL."""
# We want to download URLs like http://... but not Windows paths like c:\...
return len(urlparse(thing).scheme) >= 2
def addCommonOptions(parser, defaults={}):
parser.add_option("--xre-path",
action = "store", type = "string", dest = "xrePath",
# individual scripts will set a sane default
default = None,
help = "absolute path to directory containing XRE (probably xulrunner)")
if 'SYMBOLS_PATH' not in defaults:
defaults['SYMBOLS_PATH'] = None
parser.add_option("--symbols-path",
action = "store", type = "string", dest = "symbolsPath",
default = defaults['SYMBOLS_PATH'],
help = "absolute path to directory containing breakpad symbols, or the URL of a zip file containing symbols")
parser.add_option("--debugger",
action = "store", dest = "debugger",
help = "use the given debugger to launch the application")
parser.add_option("--debugger-args",
action = "store", dest = "debuggerArgs",
help = "pass the given args to the debugger _before_ "
"the application on the command line")
parser.add_option("--debugger-interactive",
action = "store_true", dest = "debuggerInteractive",
help = "prevents the test harness from redirecting "
"stdout and stderr for interactive debuggers")
def getFullPath(directory, path):
"Get an absolute path relative to 'directory'."
return os.path.normpath(os.path.join(directory, os.path.expanduser(path)))
def searchPath(directory, path):
"Go one step beyond getFullPath and try the various folders in PATH"
# Try looking in the current working directory first.
newpath = getFullPath(directory, path)
if os.path.isfile(newpath):
return newpath
# At this point we have to fail if a directory was given (to prevent cases
# like './gdb' from matching '/usr/bin/./gdb').
if not os.path.dirname(path):
for dir in os.environ['PATH'].split(os.pathsep):
newpath = os.path.join(dir, path)
if os.path.isfile(newpath):
return newpath
return None
def getDebuggerInfo(directory, debugger, debuggerArgs, debuggerInteractive = False):
debuggerInfo = None
if debugger:
debuggerPath = searchPath(directory, debugger)
if not debuggerPath:
print "Error: Path %s doesn't exist." % debugger
sys.exit(1)
debuggerName = os.path.basename(debuggerPath).lower()
def getDebuggerInfo(type, default):
if debuggerName in DEBUGGER_INFO and type in DEBUGGER_INFO[debuggerName]:
return DEBUGGER_INFO[debuggerName][type]
return default
debuggerInfo = {
"path": debuggerPath,
"interactive" : getDebuggerInfo("interactive", False),
"args": getDebuggerInfo("args", "").split(),
"requiresEscapedArgs": getDebuggerInfo("requiresEscapedArgs", False)
}
if debuggerArgs:
debuggerInfo["args"] = debuggerArgs.split()
if debuggerInteractive:
debuggerInfo["interactive"] = debuggerInteractive
return debuggerInfo
def dumpLeakLog(leakLogFile, filter = False):
"""Process the leak log, without parsing it.
Use this function if you want the raw log only.
Use it preferably with the |XPCOM_MEM_LEAK_LOG| environment variable.
"""
# Don't warn (nor "info") if the log file is not there.
if not os.path.exists(leakLogFile):
return
with open(leakLogFile, "r") as leaks:
leakReport = leaks.read()
# Only |XPCOM_MEM_LEAK_LOG| reports can be actually filtered out.
# Only check whether an actual leak was reported.
if filter and not "0 TOTAL " in leakReport:
return
# Simply copy the log.
log.info(leakReport.rstrip("\n"))
def processSingleLeakFile(leakLogFileName, processType, leakThreshold):
"""Process a single leak log.
"""
# Per-Inst Leaked Total Rem ...
# 0 TOTAL 17 192 419115886 2 ...
# 833 nsTimerImpl 60 120 24726 2 ...
lineRe = re.compile(r"^\s*\d+\s+(?P<name>\S+)\s+"
r"(?P<size>-?\d+)\s+(?P<bytesLeaked>-?\d+)\s+"
r"-?\d+\s+(?P<numLeaked>-?\d+)")
processString = ""
if processType:
# eg 'plugin'
processString = " %s process:" % processType
crashedOnPurpose = False
totalBytesLeaked = None
leakAnalysis = []
leakedObjectNames = []
with open(leakLogFileName, "r") as leaks:
for line in leaks:
if line.find("purposefully crash") > -1:
crashedOnPurpose = True
matches = lineRe.match(line)
if not matches:
# eg: the leak table header row
log.info(line.rstrip())
continue
name = matches.group("name")
size = int(matches.group("size"))
bytesLeaked = int(matches.group("bytesLeaked"))
numLeaked = int(matches.group("numLeaked"))
# Output the raw line from the leak log table if it is the TOTAL row,
# or is for an object row that has been leaked.
if numLeaked != 0 or name == "TOTAL":
log.info(line.rstrip())
# Analyse the leak log, but output later or it will interrupt the leak table
if name == "TOTAL":
totalBytesLeaked = bytesLeaked
if size < 0 or bytesLeaked < 0 or numLeaked < 0:
leakAnalysis.append("TEST-UNEXPECTED-FAIL | leakcheck |%s negative leaks caught!"
% processString)
continue
if name != "TOTAL" and numLeaked != 0:
leakedObjectNames.append(name)
leakAnalysis.append("TEST-INFO | leakcheck |%s leaked %d %s (%s bytes)"
% (processString, numLeaked, name, bytesLeaked))
log.info('\n'.join(leakAnalysis))
if totalBytesLeaked is None:
# We didn't see a line with name 'TOTAL'
if crashedOnPurpose:
log.info("TEST-INFO | leakcheck |%s deliberate crash and thus no leak log"
% processString)
else:
# TODO: This should be a TEST-UNEXPECTED-FAIL, but was changed to a warning
# due to too many intermittent failures (see bug 831223).
log.info("WARNING | leakcheck |%s missing output line for total leaks!"
% processString)
return
if totalBytesLeaked == 0:
log.info("TEST-PASS | leakcheck |%s no leaks detected!" % processString)
return
# totalBytesLeaked was seen and is non-zero.
if totalBytesLeaked > leakThreshold:
# Fail the run if we're over the threshold (which defaults to 0)
prefix = "TEST-UNEXPECTED-FAIL"
else:
prefix = "WARNING"
# Create a comma delimited string of the first N leaked objects found,
# to aid with bug summary matching in TBPL. Note: The order of the objects
# had no significance (they're sorted alphabetically).
maxSummaryObjects = 5
leakedObjectSummary = ', '.join(leakedObjectNames[:maxSummaryObjects])
if len(leakedObjectNames) > maxSummaryObjects:
leakedObjectSummary += ', ...'
log.info("%s | leakcheck |%s %d bytes leaked (%s)"
% (prefix, processString, totalBytesLeaked, leakedObjectSummary))
def processLeakLog(leakLogFile, leakThreshold = 0):
"""Process the leak log, including separate leak logs created
by child processes.
Use this function if you want an additional PASS/FAIL summary.
It must be used with the |XPCOM_MEM_BLOAT_LOG| environment variable.
"""
if not os.path.exists(leakLogFile):
log.info("WARNING | leakcheck | refcount logging is off, so leaks can't be detected!")
return
if leakThreshold != 0:
log.info("TEST-INFO | leakcheck | threshold set at %d bytes" % leakThreshold)
(leakLogFileDir, leakFileBase) = os.path.split(leakLogFile)
fileNameRegExp = re.compile(r".*?_([a-z]*)_pid\d*$")
if leakFileBase[-4:] == ".log":
leakFileBase = leakFileBase[:-4]
fileNameRegExp = re.compile(r".*?_([a-z]*)_pid\d*.log$")
for fileName in os.listdir(leakLogFileDir):
if fileName.find(leakFileBase) != -1:
thisFile = os.path.join(leakLogFileDir, fileName)
processType = None
m = fileNameRegExp.search(fileName)
if m:
processType = m.group(1)
processSingleLeakFile(thisFile, processType, leakThreshold)
def replaceBackSlashes(input):
return input.replace('\\', '/')
def wrapCommand(cmd):
"""
If running on OS X 10.5 or older, wrap |cmd| so that it will
be executed as an i386 binary, in case it's a 32-bit/64-bit universal
binary.
"""
if platform.system() == "Darwin" and \
hasattr(platform, 'mac_ver') and \
platform.mac_ver()[0][:4] < '10.6':
return ["arch", "-arch", "i386"] + cmd
# otherwise just execute the command normally
return cmd
class KeyValueParseError(Exception):
"""error when parsing strings of serialized key-values"""
def __init__(self, msg, errors=()):
self.errors = errors
Exception.__init__(self, msg)
def parseKeyValue(strings, separator='=', context='key, value: '):
"""
parse string-serialized key-value pairs in the form of
`key = value`. Returns a list of 2-tuples.
Note that whitespace is not stripped.
"""
# syntax check
missing = [string for string in strings if separator not in string]
if missing:
raise KeyValueParseError("Error: syntax error in %s" % (context,
','.join(missing)),
errors=missing)
return [string.split(separator, 1) for string in strings]
def systemMemory():
"""
Returns total system memory in kilobytes.
Works only on unix-like platforms where `free` is in the path.
"""
return int(os.popen("free").readlines()[1].split()[1])
def environment(xrePath, env=None, crashreporter=True, debugger=False, dmdPath=None):
"""populate OS environment variables for mochitest"""
env = os.environ.copy() if env is None else env
assert os.path.isabs(xrePath)
ldLibraryPath = xrePath
envVar = None
dmdLibrary = None
preloadEnvVar = None
if mozinfo.isUnix:
envVar = "LD_LIBRARY_PATH"
env['MOZILLA_FIVE_HOME'] = xrePath
dmdLibrary = "libdmd.so"
preloadEnvVar = "LD_PRELOAD"
elif mozinfo.isMac:
envVar = "DYLD_LIBRARY_PATH"
dmdLibrary = "libdmd.dylib"
preloadEnvVar = "DYLD_INSERT_LIBRARIES"
elif mozinfo.isWin:
envVar = "PATH"
dmdLibrary = "dmd.dll"
preloadEnvVar = "MOZ_REPLACE_MALLOC_LIB"
if envVar:
envValue = ((env.get(envVar), str(ldLibraryPath))
if mozinfo.isWin
else (ldLibraryPath, dmdPath, env.get(envVar)))
env[envVar] = os.path.pathsep.join([path for path in envValue if path])
if dmdPath and dmdLibrary and preloadEnvVar:
env['DMD'] = '1'
env[preloadEnvVar] = os.path.join(dmdPath, dmdLibrary)
# crashreporter
env['GNOME_DISABLE_CRASH_DIALOG'] = '1'
env['XRE_NO_WINDOWS_CRASH_DIALOG'] = '1'
env['NS_TRACE_MALLOC_DISABLE_STACKS'] = '1'
if crashreporter and not debugger:
env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
env['MOZ_CRASHREPORTER'] = '1'
else:
env['MOZ_CRASHREPORTER_DISABLE'] = '1'
# Set WebRTC logging in case it is not set yet
env.setdefault('NSPR_LOG_MODULES', 'signaling:5,mtransport:3')
env.setdefault('R_LOG_LEVEL', '5')
env.setdefault('R_LOG_DESTINATION', 'stderr')
env.setdefault('R_LOG_VERBOSE', '1')
# ASan specific environment stuff
asan = bool(mozinfo.info.get("asan"))
if asan and (mozinfo.isLinux or mozinfo.isMac):
try:
# Symbolizer support
llvmsym = os.path.join(xrePath, "llvm-symbolizer")
if os.path.isfile(llvmsym):
env["ASAN_SYMBOLIZER_PATH"] = llvmsym
log.info("ASan using symbolizer at %s", llvmsym)
totalMemory = systemMemory()
# Only 4 GB RAM or less available? Use custom ASan options to reduce
# the amount of resources required to do the tests. Standard options
# will otherwise lead to OOM conditions on the current test slaves.
message = "INFO | runtests.py | ASan running in %s configuration"
if totalMemory <= 1024 * 1024 * 4:
message = message % 'low-memory'
env["ASAN_OPTIONS"] = "quarantine_size=50331648:malloc_context_size=5"
else:
message = message % 'default memory'
except OSError,err:
log.info("Failed determine available memory, disabling ASan low-memory configuration: %s", err.strerror)
except:
log.info("Failed determine available memory, disabling ASan low-memory configuration")
else:
log.info(message)
return env
def dumpScreen(utilityPath):
"""dumps a screenshot of the entire screen to a directory specified by
the MOZ_UPLOAD_DIR environment variable"""
import mozfile
# Need to figure out which OS-dependent tool to use
if mozinfo.isUnix:
utility = [os.path.join(utilityPath, "screentopng")]
elif mozinfo.isMac:
utility = ['/usr/sbin/screencapture', '-C', '-x', '-t', 'png']
elif mozinfo.isWin:
utility = [os.path.join(utilityPath, "screenshot.exe")]
# Get dir where to write the screenshot file
parent_dir = os.environ.get('MOZ_UPLOAD_DIR', None)
if not parent_dir:
log.info('Failed to retrieve MOZ_UPLOAD_DIR env var')
return
# Run the capture
try:
tmpfd, imgfilename = tempfile.mkstemp(prefix='mozilla-test-fail-screenshot_', suffix='.png', dir=parent_dir)
os.close(tmpfd)
returncode = subprocess.call(utility + [imgfilename])
except OSError, err:
log.info("Failed to start %s for screenshot: %s",
utility[0], err.strerror)
return
# Check whether the capture utility ran successfully
if returncode != 0:
log.info("%s exited with code %d", utility, returncode)
class ShutdownLeaks(object):
"""
Parses the mochitest run log when running a debug build, assigns all leaked
DOM windows (that are still around after test suite shutdown, despite running
the GC) to the tests that created them and prints leak statistics.
"""
def __init__(self, logger):
self.logger = logger
self.tests = []
self.leakedWindows = {}
self.leakedDocShells = set()
self.currentTest = None
self.seenShutdown = False
def log(self, line):
if line[2:11] == "DOMWINDOW":
self._logWindow(line)
elif line[2:10] == "DOCSHELL":
self._logDocShell(line)
elif line.startswith("TEST-START"):
fileName = line.split(" ")[-1].strip().replace("chrome://mochitests/content/browser/", "")
self.currentTest = {"fileName": fileName, "windows": set(), "docShells": set()}
elif line.startswith("INFO TEST-END"):
# don't track a test if no windows or docShells leaked
if self.currentTest and (self.currentTest["windows"] or self.currentTest["docShells"]):
self.tests.append(self.currentTest)
self.currentTest = None
elif line.startswith("INFO TEST-START | Shutdown"):
self.seenShutdown = True
def process(self):
for test in self._parseLeakingTests():
for url, count in self._zipLeakedWindows(test["leakedWindows"]):
self.logger("TEST-UNEXPECTED-FAIL | %s | leaked %d window(s) until shutdown [url = %s]", test["fileName"], count, url)
if test["leakedDocShells"]:
self.logger("TEST-UNEXPECTED-FAIL | %s | leaked %d docShell(s) until shutdown", test["fileName"], len(test["leakedDocShells"]))
def _logWindow(self, line):
created = line[:2] == "++"
pid = self._parseValue(line, "pid")
serial = self._parseValue(line, "serial")
# log line has invalid format
if not pid or not serial:
self.logger("TEST-UNEXPECTED-FAIL | ShutdownLeaks | failed to parse line <%s>", line)
return
key = pid + "." + serial
if self.currentTest:
windows = self.currentTest["windows"]
if created:
windows.add(key)
else:
windows.discard(key)
elif self.seenShutdown and not created:
self.leakedWindows[key] = self._parseValue(line, "url")
def _logDocShell(self, line):
created = line[:2] == "++"
pid = self._parseValue(line, "pid")
id = self._parseValue(line, "id")
# log line has invalid format
if not pid or not id:
self.logger("TEST-UNEXPECTED-FAIL | ShutdownLeaks | failed to parse line <%s>", line)
return
key = pid + "." + id
if self.currentTest:
docShells = self.currentTest["docShells"]
if created:
docShells.add(key)
else:
docShells.discard(key)
elif self.seenShutdown and not created:
self.leakedDocShells.add(key)
def _parseValue(self, line, name):
match = re.search("\[%s = (.+?)\]" % name, line)
if match:
return match.group(1)
return None
def _parseLeakingTests(self):
leakingTests = []
for test in self.tests:
test["leakedWindows"] = [self.leakedWindows[id] for id in test["windows"] if id in self.leakedWindows]
test["leakedDocShells"] = [id for id in test["docShells"] if id in self.leakedDocShells]
test["leakCount"] = len(test["leakedWindows"]) + len(test["leakedDocShells"])
if test["leakCount"]:
leakingTests.append(test)
return sorted(leakingTests, key=itemgetter("leakCount"), reverse=True)
def _zipLeakedWindows(self, leakedWindows):
counts = []
counted = set()
for url in leakedWindows:
if not url in counted:
counts.append((url, leakedWindows.count(url)))
counted.add(url)
return sorted(counts, key=itemgetter(1), reverse=True)