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stack.py
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stack.py
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#!/usr/bin/python -E
import getopt
import os
import re
import string
import sys
import getpass
import urllib
import subprocess
def PrintUsage():
print
print " usage: " + sys.argv[0] + " [options] [FILE]"
print
print " --symbols-dir=path"
print " the path to a symbols dir, such as =/tmp/out/target/product/dream/symbols"
print
print " --symbols-zip=path"
print " the path to a symbols zip file, such as =dream-symbols-12345.zip"
print
print " --auto"
print " attempt to:"
print " 1) automatically find the build number in the crash"
print " 2) if it's an official build, download the symbols "
print " from the build server, and use them"
print
print " FILE should contain a stack trace in it somewhere"
print " the tool will find that and re-print it with"
print " source files and line numbers. If you don't"
print " pass FILE, or if file is -, it reads from"
print " stdin."
print
sys.exit(1)
def FindSymbolsDir():
cmd = "CALLED_FROM_SETUP=true make -f build/core/envsetup.mk " \
+ "dumpvar-abs-TARGET_OUT_UNSTRIPPED"
stream = os.popen(cmd)
str = stream.read()
stream.close()
return str.strip()
# returns a list containing the function name and the file/lineno
def CallAddr2Line(lib, addr):
uname = os.uname()[0]
if uname == "Darwin":
proc = os.uname()[-1]
if proc == "i386":
uname = "darwin-x86"
else:
uname = "darwin-ppc"
if lib != "":
#cmd = "./prebuilt/" + uname + "/toolchain-eabi-4.2.1/bin/arm-eabi-addr2line" \
cmd = "/opt/android-ndk-r7/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-addr2line" \
+ " -f -e " + SYMBOLS_DIR + lib \
+ " 0x" + addr
stream = os.popen(cmd)
lines = stream.readlines()
list = map(string.strip, lines)
else:
list = []
if list != []:
# Name like "move_forward_type<JavaVMOption>" causes troubles
mangled_name = re.sub('<', '\<', list[0]);
mangled_name = re.sub('>', '\>', mangled_name);
#cmd = "./prebuilt/" + uname + "/toolchain-eabi-4.2.1/bin/arm-eabi-c++filt "\
cmd = "arm-linux-gnueabi-c++filt "\
+ mangled_name
stream = os.popen(cmd)
list[0] = stream.readline()
stream.close()
list = map(string.strip, list)
else:
list = [ "(unknown)", "(unknown)" ]
return list
class SSOCookie(object):
"""
creates a cookie file so we can download files from the build server
"""
def __init__(self, cookiename=".sso.cookie", keep=False):
self.sso_server = "login.corp.google.com"
self.name = cookiename
self.keeper = keep
self.tmp_opts = ".curl.options"
if not os.path.exists(self.name):
user = os.environ['USER']
print "\n%s, to access the symbols, please enter your LDAP " % user,
password = getpass.getpass()
params = urllib.urlencode({"u": user, "pw": password})
fd = os.open(self.tmp_opts, os.O_RDWR | os.O_CREAT, 0600)
os.write(fd, '-b "%s"\n' % self.name)
os.write(fd, '-c "%s"\n' % self.name)
os.write(fd, '-s"\n-L\n-d "%s"\n' % params)
os.write(fd, 'url = "https://%s/login?ssoformat=CORP_SSO"\n' %
self.sso_server)
# login to SSO
response = os.popen("/usr/bin/curl -K %s" % self.tmp_opts)
response.close()
if os.path.exists(self.tmp_opts):
os.remove(self.tmp_opts)
if os.path.exists(self.name):
os.chmod(self.name, 0600)
else:
print "Could not log in to SSO"
sys.exit(1)
def __del__(self):
"""clean up"""
if not self.keeper:
os.remove(self.name)
class NoBuildIDException(Exception):
pass
def FindBuildFingerprint(lines):
"""
Searches the given file (array of lines) for the build fingerprint information
"""
fingerprint_regex = re.compile("^.*Build fingerprint:\s'(?P<fingerprint>.*)'")
for line in lines:
fingerprint_search = fingerprint_regex.match(line.strip())
if fingerprint_search:
return fingerprint_search.group('fingerprint')
return None # didn't find the fingerprint string, so return none
class SymbolDownloadException(Exception):
pass
DEFAULT_SYMROOT = "/tmp/symbols"
def DownloadSymbols(fingerprint, cookie):
"""
Attempts to download the symbols from the build server, extracts them,
and returns the path. Takes the fingerprint from the pasted stack trace
and the SSOCookie
"""
if fingerprint is None:
return (None, None)
symdir = "%s/%s" % (DEFAULT_SYMROOT, hash(fingerprint))
if not os.path.exists(symdir):
os.makedirs(symdir)
# build server figures out the branch based on the CL
params = {
'op': "GET-SYMBOLS-LINK",
'fingerprint': fingerprint,
}
url = urllib.urlopen("http://android-build/buildbot-update?",
urllib.urlencode(params)).readlines()[0]
if url == "":
raise SymbolDownloadException, "Build server down? Failed to find syms..."
regex_str = (r'(?P<baseURL>http\:\/\/android-build\/builds\/.*\/[0-9]+' +
r'\/)(?P<img>.*)')
url_regex = re.compile(regex_str)
url_match = url_regex.match(url)
if url_match is None:
raise SymbolDownloadException, "Unexpected results from build server URL..."
baseURL = url_match.group('baseURL')
img = url_match.group('img')
symbolfile = img.replace("-img-", "-symbols-")
symurl = baseURL + symbolfile
localsyms = symdir + symbolfile
if not os.path.exists(localsyms):
print "downloading %s ..." % symurl
curlcmd = ("""/usr/bin/curl -b %s -sL -w %%{http_code} -o %s %s""" %
(cookie.name, localsyms, symurl))
(fi,fo,fe) = os.popen3(curlcmd)
fi.close()
code = fo.read()
err = fe.read()
if err != "":
raise SymbolDownloadException, "stderr from curl download: %s" % err
if code != "200":
raise SymbolDownloadException, "Faied to download %s" % symurl
else:
print "using existing cache for symbols"
print "extracting %s..." % symbolfile
saveddir = os.getcwd()
os.chdir(symdir)
unzipcode = subprocess.call(["unzip", "-qq", "-o", localsyms])
if unzipcode > 0:
raise SymbolDownloadException, ("failed to extract symbol files (%s)."
% localsyms)
os.chdir(saveddir)
return (symdir, "%s/out/target/product/dream/symbols" % symdir)
def UnzipSymbols(symbolfile):
"""Unzips a file to DEFAULT_SYMROOT and returns the unzipped location.
Args:
symbolfile: The .zip file to unzip
Returns:
A tuple containing (the directory into which the zip file was unzipped,
the path to the "symbols" directory in the unzipped file). To clean
up, the caller can delete the first element of the tuple.
Raises:
SymbolDownloadException: When the unzip fails.
"""
symdir = "%s/%s" % (DEFAULT_SYMROOT, hash(symbolfile))
if not os.path.exists(symdir):
os.makedirs(symdir)
print "extracting %s..." % symbolfile
saveddir = os.getcwd()
os.chdir(symdir)
unzipcode = subprocess.call(["unzip", "-qq", "-o", symbolfile])
if unzipcode > 0:
raise SymbolDownloadException, ("failed to extract symbol files (%s)."
% symbolfile)
os.chdir(saveddir)
return (symdir, "%s/out/target/product/dream/symbols" % symdir)
def PrintTraceLines(traceLines):
maxlen = max(map(lambda tl: len(tl[1]), traceLines))
print
print "Stack Trace:"
print " ADDR " + "FUNCTION".ljust(maxlen) + " FILE:LINE"
for tl in traceLines:
print " " + tl[0] + " " + tl[1].ljust(maxlen) + " " + tl[2]
return
def PrintValueLines(valueLines):
print
print "Stack Data:"
print " ADDR VALUE " + "FILE:LINE/FUNCTION"
for vl in valueLines:
print " " + vl[1] + " " + vl[2] + " " + vl[4]
if vl[4] != "":
print " " + vl[3]
return
def ConvertTrace(lines):
PROCESS_INFO_LINE = re.compile("(pid: [0-9]+, tid: [0-9]+.*)")
SIGNAL_LINE = re.compile("(signal [0-9]+ \(.*\).*)")
REGISTER_LINE = re.compile("(([ ]*[0-9a-z]{2} [0-9a-f]{8}){4})")
TRACE_LINE = re.compile("(.*)\#([0-9]+) (..) ([0-9a-f]{3})([0-9a-f]{5}) ([^\r\n \t]*)")
VALUE_LINE = re.compile("(.*)([0-9a-f]{2})([0-9a-f]{6}) ([0-9a-f]{3})([0-9a-f]{5}) ([^\r\n \t]*)")
THREAD_LINE = re.compile("(.*)(\-\-\- ){15}\-\-\-")
traceLines = []
valueLines = []
for line in lines:
header = PROCESS_INFO_LINE.search(line)
if header:
print header.group(1)
continue
header = SIGNAL_LINE.search(line)
if header:
print header.group(1)
continue
header = REGISTER_LINE.search(line)
if header:
print header.group(1)
continue
if TRACE_LINE.match(line):
match = TRACE_LINE.match(line)
groups = match.groups()
if groups[5] == "<unknown>" or groups[5] == "[heap]" or groups[5] == "[stack]":
traceLines.append((groups[3]+groups[4], groups[5], groups[5]))
else:
info = CallAddr2Line(groups[5], groups[4])
traceLines.append((groups[3]+groups[4], info[0], info[1]))
if VALUE_LINE.match(line):
match = VALUE_LINE.match(line)
groups = match.groups()
if groups[5] == "<unknown>" or groups[5] == "[heap]" or groups[5] == "[stack]" or groups[5] == "":
valueLines.append((groups[0], groups[1]+groups[2], groups[3]+groups[4], groups[5], ""))
else:
info = CallAddr2Line(groups[5], groups[4])
valueLines.append((groups[0], groups[1]+groups[2], groups[3]+groups[4], info[0], info[1]))
header = THREAD_LINE.search(line)
if header:
if len(traceLines) > 0:
PrintTraceLines(traceLines)
if len(valueLines) > 0:
PrintValueLines(valueLines)
traceLines = []
valueLines = []
print
print "-----------------------------------------------------\n"
if len(traceLines) > 0:
PrintTraceLines(traceLines)
if len(valueLines) > 0:
PrintValueLines(valueLines)
SYMBOLS_DIR = FindSymbolsDir()
if __name__ == '__main__':
try:
options, arguments = getopt.getopt(sys.argv[1:], "",
["auto", "symbols-dir=", "symbols-zip=", "help"])
except getopt.GetoptError, error:
PrintUsage()
AUTO = False
zipArg = None
for option, value in options:
if option == "--help":
PrintUsage()
elif option == "--symbols-dir":
SYMBOLS_DIR = value
elif option == "--symbols-zip":
zipArg = value
elif option == "--auto":
AUTO = True
if len(arguments) > 1:
PrintUsage()
if AUTO:
cookie = SSOCookie(".symbols.cookie")
if len(arguments) == 0 or arguments[0] == "-":
print "Reading native crash info from stdin"
f = sys.stdin
else:
print "Searching for native crashes in %s" % arguments[0]
f = open(arguments[0], "r")
lines = f.readlines()
rootdir = None
if AUTO:
fingerprint = FindBuildFingerprint(lines)
print "fingerprint:", fingerprint
rootdir, SYMBOLS_DIR = DownloadSymbols(fingerprint, cookie)
elif zipArg is not None:
rootdir, SYMBOLS_DIR = UnzipSymbols(zipArg)
print "Reading symbols from", SYMBOLS_DIR
lines = ConvertTrace(lines)
if rootdir is not None:
# be a good citizen and clean up...os.rmdir and os.removedirs() don't work
cmd = "rm -rf \"%s\"" % rootdir
print "\ncleaning up (%s)" % cmd
os.system(cmd)
# vi: ts=2 sw=2