ThreadSanitizer and Dr Memory for Windows

Added new wrapper script webrtc_tests.bat for executing memory/threading tests on Windows.
Updated webrtc_tests.sh to include modifications in chrome_tests.sh that has happened since we copied it.

To setup TSAN for Windows, see http://www.chromium.org/developers/how-tos/using-valgrind/threadsanitizer
I did like this:
1. Added "third_party/tsan": "http://src.chromium.org/chrome/trunk/deps/third_party/tsan"
to custom_deps in my .gclient file
2. gclient sync
3. SET GYP_DEFINES=build_with_tool=tsan && gclient runhooks
4. Compiled.
5. Ran the test using the wrapper script (see below).

To setup Dr Memory for Windows, see http://www.chromium.org/developers/how-tos/using-drmemory
I did like this:
1. Added "third_party/drmemory": "http://src.chromium.org/svn/trunk/deps/third_party/drmemory",
to custom_deps in my .gclient file (using the drmemory.DEPS as described on Chromium's wiki ends up in the wrong location)
2. gclient sync
3. SET GYP_DEFINES=build_with_tool=drmemory && gclient runhooks
4. Compiled.
5. Ran the test using the wrapper script (see below).


TEST=
On Windows: 
tools\valgrind-webrtc\webrtc_tests.bat --tool=tsan --test build\Debug\voice_engine_unittests.exe
tools\valgrind-webrtc\webrtc_tests.bat --tool=drmemory_light --test build\Debug\voice_engine_unittests.exe
tools\valgrind-webrtc\webrtc_tests.bat --tool=drmemory_full --test build\Debug\voice_engine_unittests.exe
On Linux: 
tools/valgrind-webrtc/webrtc_tests.sh --tool=memcheck --test out/Release/test_support_unittests
tools/valgrind-webrtc/webrtc_tests.sh --tool=tsan --test out/Release/test_support_unittests
tools/valgrind-webrtc/webrtc_tests.sh --tool=asan --test out/Release/test_support_unittests
Review URL: https://webrtc-codereview.appspot.com/845004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2846 4adac7df-926f-26a2-2b94-8c16560cd09d

tools/valgrind-webrtc/webrtc_tests.sh

@@ -22,9 +22,9 @@ 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
+#   tools/valgrind-webrtc/webrtc_tests.sh --tool memcheck
 # or
-#   tools/valgrind/chrome_tests.sh --tool=memcheck
+#   tools/valgrind-webrtc/webrtc_tests.sh --tool=memcheck
 # (same for "--tool=tsan")
 tool="memcheck"  # Default to memcheck.
 while (( "$#" ))
@@ -48,9 +48,14 @@ case "$tool" in
     NEEDS_VALGRIND=1
     ;;
   "tsan" | "tsan_rv")
-    NEEDS_VALGRIND=1
+    if [ "`uname -s`" == CYGWIN* ]
+    then
+      NEEDS_PIN=1
+    else
+      NEEDS_VALGRIND=1
+    fi
     ;;
-  "drmemory" | "drmemory_light" | "drmemory_full")
+  "drmemory" | "drmemory_light" | "drmemory_full" | "drmemory_pattern")
     NEEDS_DRMEMORY=1
     ;;
 esac
@@ -74,6 +79,16 @@ then
   # Valgrind binary.
   export VALGRIND_LIB="$CHROME_VALGRIND/lib/valgrind"
   export VALGRIND_LIB_INNER="$CHROME_VALGRIND/lib/valgrind"
+
+  # Clean up some /tmp directories that might be stale due to interrupted
+  # chrome_tests.py execution.
+  # FYI:
+  #   -mtime +1  <- only print files modified more than 24h ago,
+  #   -print0/-0 are needed to handle possible newlines in the filenames.
+  echo "Cleanup /tmp from Valgrind stuff"
+  find /tmp -maxdepth 1 \(\
+        -name "vgdb-pipe-*" -or -name "vg_logs_*" -or -name "valgrind.*" \
+      \) -mtime +1 -print0 | xargs -0 rm -rf
 fi
 
 if [ "$NEEDS_DRMEMORY" == "1" ]
@@ -96,6 +111,28 @@ then
   fi
 fi
 
+if [ "$NEEDS_PIN" == "1" ]
+then
+  if [ -z "$PIN_COMMAND" ]
+  then
+    # Set up PIN_COMMAND to invoke TSan.
+    TSAN_PATH="$THISDIR/../../third_party/tsan"
+    TSAN_SFX="$TSAN_PATH/tsan-x86-windows-sfx.exe"
+    echo "$TSAN_SFX"
+    if [ ! -f $TSAN_SFX ]
+    then
+      echo "Can't find ThreadSanitizer executables."
+      echo "See http://www.chromium.org/developers/how-tos/using-valgrind/threadsanitizer/threadsanitizer-on-windows"
+      echo "for the instructions on how to get them."
+      exit 1
+    fi
+
+    chmod +x "$TSAN_SFX"  # Cygwin won't run it without +x.
+    "$TSAN_SFX" -o"$TSAN_PATH"/unpacked -y
+    export PIN_COMMAND="$TSAN_PATH/unpacked/tsan-x86-windows/tsan.bat"
+  fi
+fi
+
 # Add Chrome's Valgrind scripts dir to the PYTHON_PATH since it contains 
 # the scripts that are needed for this script to run
 PYTHONPATH=$THISDIR/../python/google:$CHROME_VALGRIND_SCRIPTS python \