gecko/build/automationutils.py

435 lines
15 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 re
from urlparse import urlparse
__all__ = [
"ZipFileReader",
"addCommonOptions",
"checkForCrashes",
"dumpLeakLog",
"isURL",
"processLeakLog",
"getDebuggerInfo",
"DEBUGGER_INFO",
"replaceBackSlashes",
"wrapCommand",
]
# 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"
},
# valgrind doesn't explain much about leaks unless you set the
# '--leak-check=full' flag.
"valgrind": {
"interactive": False,
"args": "--leak-check=full"
}
}
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 checkForCrashes(dumpDir, symbolsPath, testName=None):
stackwalkPath = os.environ.get('MINIDUMP_STACKWALK', None)
# try to get the caller's filename if no test name is given
if testName is None:
try:
testName = os.path.basename(sys._getframe(1).f_code.co_filename)
except:
testName = "unknown"
# Check preconditions
dumps = glob.glob(os.path.join(dumpDir, '*.dmp'))
if len(dumps) == 0:
return False
try:
removeSymbolsPath = False
# If our symbols are at a remote URL, download them now
if symbolsPath and isURL(symbolsPath):
print "Downloading symbols from: " + symbolsPath
removeSymbolsPath = True
# Get the symbols and write them to a temporary zipfile
data = urllib2.urlopen(symbolsPath)
symbolsFile = tempfile.TemporaryFile()
symbolsFile.write(data.read())
# extract symbols to a temporary directory (which we'll delete after
# processing all crashes)
symbolsPath = tempfile.mkdtemp()
zfile = ZipFileReader(symbolsFile)
zfile.extractall(symbolsPath)
for d in dumps:
stackwalkOutput = []
stackwalkOutput.append("Crash dump filename: " + d)
topFrame = None
if symbolsPath and stackwalkPath and os.path.exists(stackwalkPath):
# run minidump stackwalk
p = subprocess.Popen([stackwalkPath, d, symbolsPath],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
(out, err) = p.communicate()
if len(out) > 3:
# minidump_stackwalk is chatty, so ignore stderr when it succeeds.
stackwalkOutput.append(out)
# The top frame of the crash is always the line after "Thread N (crashed)"
# Examples:
# 0 libc.so + 0xa888
# 0 libnss3.so!nssCertificate_Destroy [certificate.c : 102 + 0x0]
# 0 mozjs.dll!js::GlobalObject::getDebuggers() [GlobalObject.cpp:89df18f9b6da : 580 + 0x0]
# 0 libxul.so!void js::gc::MarkInternal<JSObject>(JSTracer*, JSObject**) [Marking.cpp : 92 + 0x28]
lines = out.splitlines()
for i, line in enumerate(lines):
if "(crashed)" in line:
match = re.search(r"^ 0 (?:.*!)?(?:void )?([^\[]+)", lines[i+1])
if match:
topFrame = "@ %s" % match.group(1).strip()
break
else:
stackwalkOutput.append("stderr from minidump_stackwalk:")
stackwalkOutput.append(err)
if p.returncode != 0:
stackwalkOutput.append("minidump_stackwalk exited with return code %d" % p.returncode)
else:
if not symbolsPath:
stackwalkOutput.append("No symbols path given, can't process dump.")
if not stackwalkPath:
stackwalkOutput.append("MINIDUMP_STACKWALK not set, can't process dump.")
elif stackwalkPath and not os.path.exists(stackwalkPath):
stackwalkOutput.append("MINIDUMP_STACKWALK binary not found: %s" % stackwalkPath)
if not topFrame:
topFrame = "Unknown top frame"
log.info("PROCESS-CRASH | %s | application crashed [%s]", testName, topFrame)
print '\n'.join(stackwalkOutput)
dumpSavePath = os.environ.get('MINIDUMP_SAVE_PATH', None)
if dumpSavePath:
shutil.move(d, dumpSavePath)
print "Saved dump as %s" % os.path.join(dumpSavePath,
os.path.basename(d))
else:
os.remove(d)
extra = os.path.splitext(d)[0] + ".extra"
if os.path.exists(extra):
os.remove(extra)
finally:
if removeSymbolsPath:
shutil.rmtree(symbolsPath)
return True
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()
}
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
leaks = open(leakLogFile, "r")
leakReport = leaks.read()
leaks.close()
# 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, PID, processType, leakThreshold):
"""Process a single leak log, corresponding to the specified
process PID and type.
"""
# 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 PID and processType:
processString = "| %s process %s " % (processType, PID)
leaks = open(leakLogFileName, "r")
for line in leaks:
matches = lineRe.match(line)
if (matches and
int(matches.group("numLeaked")) == 0 and
matches.group("name") != "TOTAL"):
continue
log.info(line.rstrip())
leaks.close()
leaks = open(leakLogFileName, "r")
seenTotal = False
crashedOnPurpose = False
prefix = "TEST-PASS"
numObjects = 0
for line in leaks:
if line.find("purposefully crash") > -1:
crashedOnPurpose = True
matches = lineRe.match(line)
if not matches:
continue
name = matches.group("name")
size = int(matches.group("size"))
bytesLeaked = int(matches.group("bytesLeaked"))
numLeaked = int(matches.group("numLeaked"))
if size < 0 or bytesLeaked < 0 or numLeaked < 0:
log.info("TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | negative leaks caught!" %
processString)
if name == "TOTAL":
seenTotal = True
elif name == "TOTAL":
seenTotal = True
# Check for leaks.
if bytesLeaked < 0 or bytesLeaked > leakThreshold:
prefix = "TEST-UNEXPECTED-FAIL"
leakLog = "TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | leaked" \
" %d bytes during test execution" % (processString, bytesLeaked)
elif bytesLeaked > 0:
leakLog = "TEST-PASS %s| automationutils.processLeakLog() | WARNING leaked" \
" %d bytes during test execution" % (processString, bytesLeaked)
else:
leakLog = "TEST-PASS %s| automationutils.processLeakLog() | no leaks detected!" \
% processString
# Remind the threshold if it is not 0, which is the default/goal.
if leakThreshold != 0:
leakLog += " (threshold set at %d bytes)" % leakThreshold
# Log the information.
log.info(leakLog)
else:
if numLeaked != 0:
if numLeaked > 1:
instance = "instances"
rest = " each (%s bytes total)" % matches.group("bytesLeaked")
else:
instance = "instance"
rest = ""
numObjects += 1
if numObjects > 5:
# don't spam brief tinderbox logs with tons of leak output
prefix = "TEST-INFO"
log.info("%(prefix)s %(process)s| automationutils.processLeakLog() | leaked %(numLeaked)d %(instance)s of %(name)s "
"with size %(size)s bytes%(rest)s" %
{ "prefix": prefix,
"process": processString,
"numLeaked": numLeaked,
"instance": instance,
"name": name,
"size": matches.group("size"),
"rest": rest })
if not seenTotal:
if crashedOnPurpose:
log.info("INFO | automationutils.processLeakLog() | process %s was " \
"deliberately crashed and thus has no leak log" % PID)
else:
log.info("WARNING | automationutils.processLeakLog() | missing output line for total leaks!")
leaks.close()
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 | automationutils.processLeakLog() | refcount logging is off, so leaks can't be detected!")
return
(leakLogFileDir, leakFileBase) = os.path.split(leakLogFile)
pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*)$")
if leakFileBase[-4:] == ".log":
leakFileBase = leakFileBase[:-4]
pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*).log$")
for fileName in os.listdir(leakLogFileDir):
if fileName.find(leakFileBase) != -1:
thisFile = os.path.join(leakLogFileDir, fileName)
processPID = 0
processType = None
m = pidRegExp.search(fileName)
if m:
processType = m.group(1)
processPID = m.group(2)
processSingleLeakFile(thisFile, processPID, 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