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#!/usr/bin/env python
##########################################################################
#
# Copyright 2014-2016 VMware, Inc.
# All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
##########################################################################/
import subprocess
import sys
import os.path
import optparse
import re
import unpickle
class LeakDetector(unpickle.Unpickler):
def __init__(self, apitrace, trace):
cmd = [apitrace, 'pickle', '--symbolic', trace]
p = subprocess.Popen(args = cmd, stdout = subprocess.PIPE)
unpickle.Unpickler.__init__(self, p.stdout)
self.numContexts = 0
# a map of maps
self.objectDicts = {}
def parse(self):
unpickle.Unpickler.parse(self)
# Reached the end of the trace -- dump any live objects
self.dumpLeaks("<EOF>")
genDelRegExp = re.compile('^gl(Gen|Delete)(Buffers|Textures|FrameBuffers|RenderBuffers)[A-Z]*$')
def handleCall(self, call):
# Ignore calls without side effects
if call.flags & unpickle.CALL_FLAG_NO_SIDE_EFFECTS:
return
# Dump call for debugging:
if 0:
sys.stderr.write('%s\n' % call)
mo = self.genDelRegExp.match(call.functionName)
if mo:
verb = mo.group(1)
subject = mo.group(2)
subject = subject.lower().rstrip('s')
objectDict = self.objectDicts.setdefault(subject, {})
if verb == 'Gen':
self.handleGenerate(call, objectDict)
elif verb == 'Delete':
self.handleDelete(call, objectDict)
else:
assert 0
# TODO: Track labels via glObjectLabel* calls
if call.functionName in [
'CGLCreateContext',
'eglCreateContext',
'glXCreateContext',
'glXCreateContextAttribsARB',
'glXCreateContextWithConfigSGIX',
'wglCreateContext',
'wglCreateContextAttribsARB',
]:
# FIXME: Ignore failing context creation calls
self.numContexts += 1
if call.functionName in [
'CGLDestroyContext',
'glXDestroyContext',
'eglDestroyContext',
'wglDeleteContext',
]:
assert self.numContexts > 0
self.numContexts -= 1
if self.numContexts == 0:
self.dumpLeaks(call.no)
def handleGenerate(self, call, objectDict):
n, names = call.argValues()
for i in range(n):
name = names[i]
objectDict[name] = call.no
# TODO: Keep track of call stack backtrace too
def handleDelete(self, call, objectDict):
n, names = call.argValues()
for i in range(n):
name = names[i]
try:
del objectDict[name]
except KeyError:
# Ignore if texture name was never generated
pass
def dumpLeaks(self, currentCallNo):
for kind, objectDict in self.objectDicts.iteritems():
self.dumpNamespaceLeaks(currentCallNo, objectDict, kind)
def dumpNamespaceLeaks(self, currentCallNo, objectDict, kind):
for name, creationCallNo in (sorted(objectDict.iteritems(),key=lambda t: t[1])):
sys.stderr.write('%u: error: %s %u was not destroyed until %s\n' % (creationCallNo, kind, name, currentCallNo))
objectDict.clear()
def main():
'''Main program.
'''
# Parse command line options
optparser = optparse.OptionParser(
usage='\n\t%prog [options] TRACE',
version='%%prog')
optparser.add_option(
'-a', '--apitrace', metavar='PROGRAM',
type='string', dest='apitrace', default='apitrace',
help='apitrace command [default: %default]')
options, args = optparser.parse_args(sys.argv[1:])
if len(args) != 1:
optparser.error("incorrect number of arguments")
inTrace = args[0]
if not os.path.isfile(inTrace):
sys.stderr.write("error: `%s` does not exist\n" % inTrace)
sys.exit(1)
detector = LeakDetector(options.apitrace, inTrace)
detector.parse()
if __name__ == '__main__':
main()
|
