This CL introduces a new directory for WebRTC utility scripts for Valgrind: tools/valgrind-webrtc

To be able to re-use as much as possible from Chromium's scripts, I've created two customized scripts for running tests: - webrtc_tests.py: a customized version of chrome_tests.py with WebRTC tests instead. - webrtc_tests.sh: a customized version of the chrome_tests.sh wrapper script, to launch the above script. The webrtc_tests.sh script is setting up PYTHONPATH so that tools/valgrind is available for the webrtc_tests.py script. The webrtc_tests.py script inherits the chrome_tests.py script as much as possible, to minimize maintenance and maximize readability. Having this mirrored setup of directories, allows us to use the same directory hierarchy for suppression files too. This CL only adds suppression files for memcheck, but we can add files for tsan later easily. The suppression file is currently empty for Linux. For Mac I copied all the Chromium third-party suppressions. We will need a lot more added for Mac before Valgrind runs becomes usable for that platform. The platform specific naming of the suppression files are handled automatically when webrtc_tests.sh is used to launch the tests. Example: Plain memcheck (default tool): tools/valgrind-webrtc/webrtc_tests.sh -t system_wrappers Run ThreadSanitizer: tools/valgrind-webrtc/webrtc_tests.sh --tool=tsan -t system_wrappers Previously mentioned AddressSanitizer requires additional scripts to be added and it not covered in this CL. BUG= TEST= Review URL: http://webrtc-codereview.appspot.com/322010 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1240 4adac7df-926f-26a2-2b94-8c16560cd09d
2011-12-20 08:53:41 +00:00 · 2011-12-20 08:53:41 +00:00 · b5b155b8a9
commit b5b155b8a9
parent 9e4f3830a7
5 changed files with 612 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -36,6 +36,7 @@
 /resources
 /src/supplement.gypi
 /testing
+/third_party/asan
 /third_party/cygwin
 /third_party/expat
 /third_party/google-gflags/src
--- a/tools/valgrind-webrtc/memcheck/suppressions.txt
+++ b/tools/valgrind-webrtc/memcheck/suppressions.txt
@ -0,0 +1,30 @@
+# There are four kinds of suppressions in this file.
+# 1. third party stuff we have no control over
+#
+# 2. intentional unit test errors, or stuff that is somehow a false positive
+# in our own code, or stuff that is so trivial it's not worth fixing
+#
+# 3. Suppressions for real WebRTC bugs that are not yet fixed.
+# These should all be in WebRTC's bug tracking system.
+# Periodically we should sweep this file and the bug tracker clean by
+# running overnight and removing outdated bugs/suppressions.
+#
+# 4. issues that happen only on Google workstations.
+#-----------------------------------------------------------------------
+
+
+
+# 1. third party stuff we have no control over
+
+#-----------------------------------------------------------------------
+# 2. intentional unit test errors, or stuff that is somehow a false positive
+# in our own code, or stuff that is so trivial it's not worth fixing
+
+#-----------------------------------------------------------------------
+# 3. Suppressions for real chromium bugs that are not yet fixed.
+# These should all be in WebRTC's bug tracking system.
+
+
+#-----------------------------------------------------------------------
+# 4. These only occur on our Google workstations
+
--- a/tools/valgrind-webrtc/memcheck/suppressions_mac.txt
+++ b/tools/valgrind-webrtc/memcheck/suppressions_mac.txt
@ -0,0 +1,323 @@
+# There are three kinds of suppressions in this file:
+# 1. Third party stuff we have no control over.
+#
+# 2. Intentional unit test errors, stuff that is somehow a false positive
+# in our own code, or stuff that is so trivial it's not worth fixing.
+#
+# 3. Suppressions for real WebRTC bugs that are not yet fixed.
+# These should all be in WebRTC's bug tracking system.
+# Periodically we should sweep this file and the bug tracker clean by
+# running overnight and removing outdated bugs/suppressions.
+#-----------------------------------------------------------------------
+
+# 1. Third party stuff we have no control over.
+{
+   FIXME mac kevent libevent probably needs valgrind hooks
+   Memcheck:Param
+   kevent(changelist)
+   fun:kevent
+   fun:event_base_new
+}
+{
+   # CoreAudio leak.  See http://crbug.com/9351
+   bug_9351
+   Memcheck:Leak
+   ...
+   fun:_ZN12HALCADClient19AddPropertyListenerEmPK26AudioObjectPropertyAddressPFlmmS2_PvES3_
+   fun:_ZN16HALDefaultDevice22InstallServerListenersEv
+   fun:_ZN16HALDefaultDevice10InitializeEv
+   fun:_ZN9HALSystem16CheckOutInstanceEv
+}
+{
+   # Mac test_shell_tests.  See http://crbug.com/11134
+   # Doesn't happen on bots, but happens like crazy on the smo
+   # test machine 'caliban'.  Don't delete just because it
+   # doesn't happen on the bots.
+   bug_11134
+   Memcheck:Uninitialized
+   fun:vCMMVectorConvert8BitRGBToRGB
+   fun:_ZNK15CMMConvRGBToRGB7ConvertER8CMM8BitsP14CMMRuntimeInfomm
+}
+{
+   # Mac system library bug?  See http://crbug.com/11327
+   bug_11327
+   Memcheck:Uninitialized
+   fun:_ZN19AudioConverterChain5ResetEv
+   fun:AudioConverterReset
+   obj:/System/Library/Components/CoreAudio.component/Contents/MacOS/CoreAudio
+}
+{
+   # Mac system library bug?  See http://crbug.com/11327
+   bug_11327b
+   Memcheck:Uninitialized
+   fun:AUNetSendEntry
+   fun:AUNetSendEntry
+   obj:/System/Library/Components/CoreAudio.component/Contents/MacOS/CoreAudio
+}
+{
+   # Filed with Apple as rdar://6915060; see http://crbug.com/11270
+   bug_11270
+   Memcheck:Leak
+   fun:calloc
+   fun:CMSSetLabCLUT
+}
+{
+   # Mac leak in CMOpenOrNewAccess in unit_tests PlatformCanvas_SkLayer_Test,
+   # ToolbarControllerTest_FocusLocation_Test. See http://crbug.com/11333.
+   bug_11333
+   Memcheck:Leak
+   fun:malloc
+   fun:stdSmartNewPtr
+   fun:stdSmartNewHandle
+   fun:IOCreateAndOpen
+   fun:ScratchInit
+   fun:CMOpenOrNewAccess
+}
+{
+   # suddenly very common as of 6 aug 2009
+   bug_11333b
+   Memcheck:Leak
+   fun:malloc
+   fun:stdSmartNewPtr
+   fun:stdSmartNewHandle
+   fun:IOCreateAndOpen
+   fun:ScratchInit
+   fun:CMNewAccessFromAnother
+}
+{
+   # Tiny one-time leak, widely seen by valgind users; everyone suppresses this.
+   # See related discussion at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39366
+   plugin_bundle_global_leak
+   Memcheck:Leak
+   fun:malloc
+   fun:__cxa_get_globals
+   fun:__cxa_allocate_exception
+   fun:_ZN4dyld4loadEPKcRKNS_11LoadContextE
+   fun:dlopen
+   fun:dlopen
+   fun:_CFBundleDlfcnCheckLoaded
+}
+{
+   bug_18215
+   Memcheck:Uninitialized
+   fun:_DPSNextEvent
+   fun:-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
+   fun:-[NSApplication run]
+}
+{
+   bug_18223
+   Memcheck:Uninitialized
+   fun:_ZNK8Security12UnixPlusPlus17StaticForkMonitorclEv
+   fun:_ZN12ocspdGlobals10serverPortEv
+}
+{
+   # Filed with Apple as rdar://7255382
+   bug_20459a
+   Memcheck:Leak
+   ...
+   fun:_CFRuntimeCreateInstance
+   fun:CFRunLoopSourceCreate
+   fun:CFMachPortCreateRunLoopSource
+   fun:_ZN8Security12MachPlusPlus10CFAutoPort6enableEv
+   fun:_ZN8Security14SecurityServer14ThreadNotifierC2Ev
+}
+{
+   # Also filed with Apple as rdar://7255382
+   bug_20459b
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:_CFRuntimeCreateInstance
+   fun:__CFArrayInit
+   fun:CFArrayCreateMutableCopy
+   fun:_ZN8Security12KeychainCore5Trust8evaluateEv
+}
+# See description of bug_20653a/b in suppressions.txt.
+{
+   bug_20653a_mac
+   Memcheck:Param
+   write(buf)
+   fun:write$UNIX2003
+   fun:pager_write_pagelist
+}
+{
+   bug_20653b_mac
+   Memcheck:Param
+   write(buf)
+   fun:write$UNIX2003
+   ...
+   fun:pager_write
+}
+
+# See http://www.openradar.me/8287193
+{
+   Invalid redzone accesses in DKeyHas8Words
+   Memcheck:Unaddressable
+   fun:DKeyHas8Words
+}
+
+# See https://bugs.kde.org/show_bug.cgi?id=188572
+# This suppression is missing in Valgrind on Mac 10.6
+# TODO(glider): remove it once it arrives in the trunk.
+{
+   Unavoidable leak in setenv()
+   Memcheck:Leak
+   fun:malloc_zone_malloc
+   fun:__setenv
+   fun:setenv$UNIX2003
+}
+{
+   # Reported to Apple as rdar://6915429
+   bug_12525
+   Memcheck:Leak
+   ...
+   fun:-[CIContextImpl render:toBitmap:rowBytes:bounds:format:colorSpace:]
+}
+{
+   bug_69436
+   Memcheck:Leak
+   ...
+   fun:-[CIKernel initWithCString:noCopy:]
+   ...
+   fun:-[NSPopUpButtonCell _drawIndicatorWithFrame:inView:]
+}
+{
+   # Capturer on Mac uses OpenGL driver, which triggers several warnings.
+   # The check has to be quite generic, as different hardware graphics cards
+   # will cause different sets of warnings.
+   bug_75037
+   Memcheck:Uninitialized
+   ...
+   fun:_ZN8remoting*CapturerMac*
+}
+{
+   # See also http://openradar.appspot.com/radar?id=1235407
+   bug_77063
+   Memcheck:Free
+   fun:_ZdlPv
+   fun:_ZN15THFSPlusCatalogD2Ev
+   fun:_ZN5TNode10SetCatalogEP15THFSPlusCatalog
+   fun:_ZN15TMountPointList9AddVolumeEsb
+   fun:_ZN15TMountPointList4FindEsPN5TNode12StPopulatingE
+   fun:_ZN15TMountPointList20SupportsInvisibleBitEsPN5TNode12StPopulatingEb
+   fun:_ZNK21THFSPlusPropertyStore4OpenEbb
+   fun:_ZNK21THFSPlusPropertyStore13GetPropertiesEb
+   fun:_ZN16TFSCopyOperation22GetSourcePropertyStoreERK11THFSPlusRef
+   fun:_ZN16TFSCopyOperation13DoMoveToTrashERK11THFSPlusRef
+   fun:_ZN16TFSCopyOperation3RunEv
+   fun:_FSOperation
+   fun:_FSOperateOnObjectSync
+   fun:FSMoveObjectToTrashSync
+   fun:_Z9TrashFuncRK8FilePath
+}
+{
+   # See also http://openradar.appspot.com/radar?id=1169404
+   bug_79533a
+   Memcheck:Uninitialized
+   ...
+   fun:_Z*19cssm_DataAbortQuery17cssm_dl_db_handlel
+   fun:CSSM_DL_DataAbortQuery
+   fun:_ZN11SSDLSession14DataAbortQueryEll
+   fun:_Z*19cssm_DataAbortQuery17cssm_dl_db_handlel
+   fun:CSSM_DL_DataAbortQuery
+   fun:tpDbFindIssuerCrl
+   fun:tpVerifyCertGroupWithCrls
+}
+{
+   # See also http://openradar.appspot.com/radar?id=1169404
+   bug_79533b
+   Memcheck:Uninitialized
+   ...
+   fun:_Z*19cssm_DataAbortQuery17cssm_dl_db_handlel
+   fun:CSSM_DL_DataAbortQuery
+   fun:_ZN11SSDLSession14DataAbortQueryEll
+   fun:_Z*19cssm_DataAbortQuery17cssm_dl_db_handlel
+   fun:CSSM_DL_DataAbortQuery
+   fun:tpDbFindIssuerCrl
+   fun:tpVerifyCertGroupWithCrls
+}
+{
+   bug_85213_a
+   Memcheck:Leak
+   ...
+   fun:_CFBundleCopyDirectoryContentsAtPath
+}
+{
+   bug_85213_b
+   Memcheck:Leak
+   ...
+   fun:_CFBundleCopyInfoDictionaryInDirectoryWithVersion
+}
+{
+   bug_85213_c
+   Memcheck:Leak
+   ...
+   fun:_CFBundleURLLooksLikeBundleVersion
+}
+{
+   bug_85213_d
+   Memcheck:Leak
+   ...
+   fun:_CFBundleCreate
+   fun:_ZN6webkit5npapi9PluginLib17ReadWebPluginInfoERK8FilePathPNS0_13WebPluginInfoE
+}
+{
+   bug_85213_e
+   Memcheck:Leak
+   ...
+   fun:CFBundlePreflightExecutable
+   fun:_ZN6webkit5npapi9PluginLib17ReadWebPluginInfoERK8FilePathPNS0_13WebPluginInfoE
+}
+{
+   bug_85213_f
+   Memcheck:Leak
+   ...
+   fun:CFBundleGetPackageInfo
+   fun:_ZN6webkit5npapi9PluginLib17ReadWebPluginInfoERK8FilePathPNS0_13WebPluginInfoE
+}
+{
+   bug_86927
+   Memcheck:Leak
+   fun:malloc
+   fun:CGSMapShmem
+   fun:CGSResolveShmemReference
+   fun:CGSScoreboard
+   fun:initCGDisplayState
+   fun:initCGDisplayMappings
+   fun:cgsInit
+   fun:pthread_once
+   fun:CGSInitialize
+   fun:CGSServerOperationState
+   fun:+[NSThemeFrame initialize]
+   fun:_class_initialize
+}
+{
+   # QTKit leak. See http://crbug.com/100772 and rdar://10319535.
+   bug_100772
+   Memcheck:Leak
+   fun:calloc
+   fun:QTMLCreateMutex
+   fun:WarholCreateGlobals
+   fun:INIT_QuickTimeLibInternal
+   fun:pthread_once
+   fun:INIT_QuickTimeLib
+   fun:EnterMovies_priv
+   fun:EnterMovies
+   fun:TundraUnitInputFromTSFileEntry
+   fun:TundraUnitVDIGInputEntry
+   fun:TundraUnitCreateFromDescription
+   fun:+[QTCaptureVDIGDevice _refreshDevices]
+   fun:+[QTCaptureVDIGDevice devicesWithIOType:]
+   fun:+[QTCaptureDevice devicesWithIOType:]
+   fun:+[QTCaptureDevice inputDevices]
+   fun:+[QTCaptureDevice inputDevicesWithMediaType:]
+   fun:+[VideoCaptureDeviceQTKit deviceNames]
+   fun:_ZN5media18VideoCaptureDevice14GetDeviceNamesEPSt4listINS0_4NameESaIS2_EE
+   fun:_ZN5media21VideoCaptureDeviceMac4InitEv
+   fun:_ZN5media18VideoCaptureDevice6CreateERKNS0_4NameE
+   fun:_ZN5media45VideoCaptureDeviceTest_OpenInvalidDevice_Test8TestBodyEv
+}
+
+# 2. Intentional unit test errors, stuff that is somehow a false positive
+# in our own code, or stuff that is so trivial it's not worth fixing.
+
+# 3. Suppressions for real WebRTC bugs that are not yet fixed.
--- a/tools/valgrind-webrtc/webrtc_tests.py
+++ b/tools/valgrind-webrtc/webrtc_tests.py
@ -0,0 +1,156 @@
+#!/usr/bin/env python
+# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+''' Runs various WebRTC tests through valgrind_test.py.
+
+This script inherits the chrome_tests.py in Chrome, replacing its tests with
+our own in WebRTC instead.
+'''
+
+import optparse
+import sys
+
+import logging_utils
+
+import chrome_tests
+
+class WebRTCTests(chrome_tests.ChromeTests):
+  # WebRTC tests, similar functions for each tests as the Chrome tests in the
+  # parent class.
+  def TestSignalProcessing(self):
+    return self.SimpleTest("signal_processing", "signal_processing_unittests")
+
+  def TestResampler(self):
+    return self.SimpleTest("resampler", "resampler_unittests")
+
+  def TestVAD(self):
+    return self.SimpleTest("vad", "vad_unittests")
+
+  def TestCNG(self):
+    return self.SimpleTest("cng", "cng_unittests")
+
+  def TestG711(self):
+    return self.SimpleTest("g711", "g711_unittests")
+
+  def TestG722(self):
+    return self.SimpleTest("g722", "g722_unittests")
+
+  def TestPCM16B(self):
+    return self.SimpleTest("pcm16b", "pcm16b_unittests")
+
+  def TestNetEQ(self):
+    return self.SimpleTest("neteq", "neteq_unittests")
+
+  def TestAudioConferenceMixer(self):
+    return self.SimpleTest("audio_conference_mixer", "audio_conference_mixer_unittests")
+
+  def TestMediaFile(self):
+    return self.SimpleTest("media_file", "media_file_unittests")
+
+  def TestRTPRTCP(self):
+    return self.SimpleTest("rtp_rtcp", "rtp_rtcp_unittests")
+
+  def TestBWE(self):
+    return self.SimpleTest("test_bwe", "test_bwe")
+
+  def TestUDPTransport(self):
+    return self.SimpleTest("udp_transport", "udp_transport_unittests")
+
+  def TestWebRTCUtility(self):
+    return self.SimpleTest("webrtc_utility", "webrtc_utility_unittests")
+
+  def TestVP8(self):
+    return self.SimpleTest("vp8", "vp8_unittests")
+
+  def TestVideoCoding(self):
+    return self.SimpleTest("video_coding", "video_coding_unittests")
+
+  def TestVideoProcessing(self):
+    return self.SimpleTest("video_processing", "video_processing_unittests")
+
+  def TestSystemWrappers(self):
+    return self.SimpleTest("system_wrappers", "system_wrappers_unittests")
+
+  def TestTestSupport(self):
+    return self.SimpleTest("test_support", "test_support_unittests")
+
+def _main(_):
+  parser = optparse.OptionParser("usage: %prog -b <dir> -t <test> "
+                                 "[-t <test> ...]")
+  parser.disable_interspersed_args()
+  parser.add_option("-b", "--build_dir",
+                    help="the location of the compiler output")
+  parser.add_option("-t", "--test", action="append", default=[],
+                    help="which test to run, supports test:gtest_filter format "
+                         "as well.")
+  parser.add_option("", "--baseline", action="store_true", default=False,
+                    help="generate baseline data instead of validating")
+  parser.add_option("", "--gtest_filter",
+                    help="additional arguments to --gtest_filter")
+  parser.add_option("", "--gtest_repeat",
+                    help="argument for --gtest_repeat")
+  parser.add_option("-v", "--verbose", action="store_true", default=False,
+                    help="verbose output - enable debug log messages")
+  parser.add_option("", "--tool", dest="valgrind_tool", default="memcheck",
+                    help="specify a valgrind tool to run the tests under")
+  parser.add_option("", "--tool_flags", dest="valgrind_tool_flags", default="",
+                    help="specify custom flags for the selected valgrind tool")
+  parser.add_option("", "--keep_logs", action="store_true", default=False,
+                    help="store memory tool logs in the <tool>.logs directory "
+                         "instead of /tmp.\nThis can be useful for tool "
+                         "developers/maintainers.\nPlease note that the <tool>"
+                         ".logs directory will be clobbered on tool startup.")
+  options, args = parser.parse_args()
+
+  if options.verbose:
+    logging_utils.config_root(logging.DEBUG)
+  else:
+    logging_utils.config_root()
+
+  if not options.test:
+    parser.error("--test not specified")
+
+  if len(options.test) != 1 and options.gtest_filter:
+    parser.error("--gtest_filter and multiple tests don't make sense together")
+
+  for t in options.test:
+    tests = WebRTCTests(options, args, t)
+    ret = tests.Run()
+    if ret: return ret
+  return 0
+
+if __name__ == "__main__":
+  # Overwrite the ChromeTests tests dictionary with our WebRTC tests. 
+  # The cmdline option allows the user to pass any executable as parameter to
+  # the test script, which is useful when developing new tests that are not yet
+  # present in this script.
+  chrome_tests.ChromeTests._test_list = {
+    "cmdline": chrome_tests.ChromeTests.RunCmdLine,
+    "signal_processing": WebRTCTests.TestSignalProcessing,
+    "resampler": WebRTCTests.TestResampler,
+    "vad": WebRTCTests.TestVAD,
+    "cng": WebRTCTests.TestCNG,
+    "g711": WebRTCTests.TestG711,
+    "g722": WebRTCTests.TestG722,
+    "pcm16b": WebRTCTests.TestPCM16B,
+    "neteq": WebRTCTests.TestNetEQ,
+    "audio_conference_mixer": WebRTCTests.TestAudioConferenceMixer,
+    "media_file": WebRTCTests.TestMediaFile,
+    "rtp_rtcp": WebRTCTests.TestRTPRTCP,
+    "test_bwe": WebRTCTests.TestBWE,
+    "udp_transport": WebRTCTests.TestUDPTransport,
+    "webrtc_utility": WebRTCTests.TestWebRTCUtility,
+    "vp8": WebRTCTests.TestVP8,
+    "video_coding": WebRTCTests.TestVideoCoding,
+    "video_processing": WebRTCTests.TestVideoProcessing,
+    "system_wrappers": WebRTCTests.TestSystemWrappers,
+    "test_support": WebRTCTests.TestTestSupport,
+  }
+  ret = _main(sys.argv)
+  sys.exit(ret)  
--- a/tools/valgrind-webrtc/webrtc_tests.sh
+++ b/tools/valgrind-webrtc/webrtc_tests.sh
@ -0,0 +1,102 @@
+#!/bin/bash
+
+# Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+# Set up some paths and re-direct the arguments to webrtc_tests.py
+
+# This script is a copy of the chrome_tests.sh wrapper script with the following
+# changes:
+# - The locate_valgrind.sh of Chromium's Valgrind scripts dir is used to locate
+#   the Valgrind framework install.
+# - webrtc_tests.py is invoked instead of chrome_tests.py.
+# - Chromium's Valgrind scripts directory is added to the PYTHONPATH to make it 
+#   possible to execute the Python scripts properly.
+
+export THISDIR=`dirname $0`
+ARGV_COPY="$@"
+
+# We need to set CHROME_VALGRIND iff using Memcheck or TSan-Valgrind:
+#   tools/valgrind/chrome_tests.sh --tool memcheck
+# or
+#   tools/valgrind/chrome_tests.sh --tool=memcheck
+# (same for "--tool=tsan")
+tool="memcheck"  # Default to memcheck.
+while (( "$#" ))
+do
+  if [[ "$1" == "--tool" ]]
+  then
+    tool="$2"
+    shift
+  elif [[ "$1" =~ --tool=(.*) ]]
+  then
+    tool="${BASH_REMATCH[1]}"
+  fi
+  shift
+done
+
+NEEDS_VALGRIND=0
+NEEDS_DRMEMORY=0
+
+case "$tool" in
+  "memcheck")
+    NEEDS_VALGRIND=1
+    ;;
+  "tsan" | "tsan_rv")
+    NEEDS_VALGRIND=1
+    ;;
+  "drmemory" | "drmemory_light" | "drmemory_full")
+    NEEDS_DRMEMORY=1
+    ;;
+esac
+
+# For WebRTC, we'll use the locate_valgrind.sh script in Chromium's Valgrind 
+# scripts dir to locate the Valgrind framework install
+CHROME_VALGRIND_SCRIPTS=$THISDIR/../valgrind
+
+if [ "$NEEDS_VALGRIND" == "1" ]
+then
+  CHROME_VALGRIND=`sh $CHROME_VALGRIND_SCRIPTS/locate_valgrind.sh`
+  if [ "$CHROME_VALGRIND" = "" ]
+  then
+    # locate_valgrind.sh failed
+    exit 1
+  fi
+  echo "Using valgrind binaries from ${CHROME_VALGRIND}"
+
+  PATH="${CHROME_VALGRIND}/bin:$PATH"
+  # We need to set these variables to override default lib paths hard-coded into
+  # Valgrind binary.
+  export VALGRIND_LIB="$CHROME_VALGRIND/lib/valgrind"
+  export VALGRIND_LIB_INNER="$CHROME_VALGRIND/lib/valgrind"
+fi
+
+if [ "$NEEDS_DRMEMORY" == "1" ]
+then
+  if [ -z "$DRMEMORY_COMMAND" ]
+  then
+    DRMEMORY_PATH="$THISDIR/../../third_party/drmemory"
+    DRMEMORY_SFX="$DRMEMORY_PATH/drmemory-windows-sfx.exe"
+    if [ ! -f "$DRMEMORY_SFX" ]
+    then
+      echo "Can't find Dr. Memory executables."
+      echo "See http://www.chromium.org/developers/how-tos/using-valgrind/dr-memory"
+      echo "for the instructions on how to get them."
+      exit 1
+    fi
+
+    chmod +x "$DRMEMORY_SFX"  # Cygwin won't run it without +x.
+    "$DRMEMORY_SFX" -o"$DRMEMORY_PATH/unpacked" -y
+    export DRMEMORY_COMMAND="$DRMEMORY_PATH/unpacked/bin/drmemory.exe"
+  fi
+fi
+
+# Add Chrome's Valgrind scripts dir to the PYTHON_PATH since it contains 
+# the scripts that are needed for this script to run
+PYTHONPATH=$THISDIR/../python/google:$CHROME_VALGRIND_SCRIPTS python \
+           "$THISDIR/webrtc_tests.py" $ARGV_COPY