Roll chromium_revision b032878ebd..e438353b8b (480186:480311)

tools_webrtc/valgrind/valgrind_test.py

Index: tools_webrtc/valgrind/valgrind_test.py
diff --git a/tools_webrtc/valgrind/valgrind_test.py b/tools_webrtc/valgrind/valgrind_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..0fd3d97f11152ae39cd43576a66f6b1f8f95c7aa
--- /dev/null
+++ b/tools_webrtc/valgrind/valgrind_test.py
@@ -0,0 +1,517 @@
+#!/usr/bin/env python
+# Copyright (c) 2017 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 an exe through Valgrind and puts the intermediate files in a
+directory.
+"""
+
+import datetime
+import glob
+import logging
+import optparse
+import os
+import re
+import shutil
+import stat
+import subprocess
+import sys
+import tempfile
+
+import common
+
+import memcheck_analyze
+
+class BaseTool(object):
+  """Abstract class for running dynamic error detection tools.
+
+  Always subclass this and implement ToolCommand with framework- and
+  tool-specific stuff.
+  """
+
+  def __init__(self):
+    temp_parent_dir = None
+    self.log_parent_dir = ""
+    if common.IsWindows():
+      # gpu process on Windows Vista+ runs at Low Integrity and can only
+      # write to certain directories (http://crbug.com/119131)
+      #
+      # TODO(bruening): if scripts die in middle and don't clean up temp
+      # dir, we'll accumulate files in profile dir.  should remove
+      # really old files automatically.
+      profile = os.getenv("USERPROFILE")
+      if profile:
+        self.log_parent_dir = profile + "\\AppData\\LocalLow\\"
+        if os.path.exists(self.log_parent_dir):
+          self.log_parent_dir = common.NormalizeWindowsPath(self.log_parent_dir)
+          temp_parent_dir = self.log_parent_dir
+    # Generated every time (even when overridden)
+    self.temp_dir = tempfile.mkdtemp(prefix="vg_logs_", dir=temp_parent_dir)
+    self.log_dir = self.temp_dir # overridable by --keep_logs
+    self.option_parser_hooks = []
+    # TODO(glider): we may not need some of the env vars on some of the
+    # platforms.
+    self._env = {
+      "G_SLICE" : "always-malloc",
+      "NSS_DISABLE_UNLOAD" : "1",
+      "NSS_DISABLE_ARENA_FREE_LIST" : "1",
+      "GTEST_DEATH_TEST_USE_FORK": "1",
+    }
+
+  def ToolName(self):
+    raise NotImplementedError, "This method should be implemented " \
+                               "in the tool-specific subclass"
+
+  def Analyze(self, check_sanity=False):
+    raise NotImplementedError, "This method should be implemented " \
+                               "in the tool-specific subclass"
+
+  def RegisterOptionParserHook(self, hook):
+    # Frameworks and tools can add their own flags to the parser.
+    self.option_parser_hooks.append(hook)
+
+  def CreateOptionParser(self):
+    # Defines Chromium-specific flags.
+    self._parser = optparse.OptionParser("usage: %prog [options] <program to "
+                                         "test>")
+    self._parser.disable_interspersed_args()
+    self._parser.add_option("-t", "--timeout",
+                      dest="timeout", metavar="TIMEOUT", default=10000,
+                      help="timeout in seconds for the run (default 10000)")
+    self._parser.add_option("", "--build-dir",
+                            help="the location of the compiler output")
+    self._parser.add_option("", "--source-dir",
+                            help="path to top of source tree for this build"
+                                 "(used to normalize source paths in baseline)")
+    self._parser.add_option("", "--gtest_filter", default="",
+                            help="which test case to run")
+    self._parser.add_option("", "--gtest_repeat",
+                            help="how many times to run each test")
+    self._parser.add_option("", "--gtest_print_time", action="store_true",
+                            default=False,
+                            help="show how long each test takes")
+    self._parser.add_option("", "--ignore_exit_code", action="store_true",
+                            default=False,
+                            help="ignore exit code of the test "
+                                 "(e.g. test failures)")
+    self._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.\n"
+                                 "Please note that the <tool>.logs directory "
+                                 "will be clobbered on tool startup.")
+
+    # To add framework- or tool-specific flags, please add a hook using
+    # RegisterOptionParserHook in the corresponding subclass.
+    # See ValgrindTool for an example.
+    for hook in self.option_parser_hooks:
+      hook(self, self._parser)
+
+  def ParseArgv(self, args):
+    self.CreateOptionParser()
+
+    # self._tool_flags will store those tool flags which we don't parse
+    # manually in this script.
+    self._tool_flags = []
+    known_args = []
+
+    """ We assume that the first argument not starting with "-" is a program
+    name and all the following flags should be passed to the program.
+    TODO(timurrrr): customize optparse instead
+    """
+    while len(args) > 0 and args[0][:1] == "-":
+      arg = args[0]
+      if (arg == "--"):
+        break
+      if self._parser.has_option(arg.split("=")[0]):
+        known_args += [arg]
+      else:
+        self._tool_flags += [arg]
+      args = args[1:]
+
+    if len(args) > 0:
+      known_args += args
+
+    self._options, self._args = self._parser.parse_args(known_args)
+
+    self._timeout = int(self._options.timeout)
+    self._source_dir = self._options.source_dir
+    if self._options.keep_logs:
+      # log_parent_dir has trailing slash if non-empty
+      self.log_dir = self.log_parent_dir + "%s.logs" % self.ToolName()
+      if os.path.exists(self.log_dir):
+        shutil.rmtree(self.log_dir)
+      os.mkdir(self.log_dir)
+      logging.info("Logs are in " + self.log_dir)
+
+    self._ignore_exit_code = self._options.ignore_exit_code
+    if self._options.gtest_filter != "":
+      self._args.append("--gtest_filter=%s" % self._options.gtest_filter)
+    if self._options.gtest_repeat:
+      self._args.append("--gtest_repeat=%s" % self._options.gtest_repeat)
+    if self._options.gtest_print_time:
+      self._args.append("--gtest_print_time")
+
+    return True
+
+  def Setup(self, args):
+    return self.ParseArgv(args)
+
+  def ToolCommand(self):
+    raise NotImplementedError, "This method should be implemented " \
+                               "in the tool-specific subclass"
+
+  def Cleanup(self):
+    # You may override it in the tool-specific subclass
+    pass
+
+  def Execute(self):
+    """ Execute the app to be tested after successful instrumentation.
+    Full execution command-line provided by subclassers via proc."""
+    logging.info("starting execution...")
+    proc = self.ToolCommand()
+    for var in self._env:
+      common.PutEnvAndLog(var, self._env[var])
+    return common.RunSubprocess(proc, self._timeout)
+
+  def RunTestsAndAnalyze(self, check_sanity):
+    exec_retcode = self.Execute()
+    analyze_retcode = self.Analyze(check_sanity)
+
+    if analyze_retcode:
+      logging.error("Analyze failed.")
+      logging.info("Search the log for '[ERROR]' to see the error reports.")
+      return analyze_retcode
+
+    if exec_retcode:
+      if self._ignore_exit_code:
+        logging.info("Test execution failed, but the exit code is ignored.")
+      else:
+        logging.error("Test execution failed.")
+        return exec_retcode
+    else:
+      logging.info("Test execution completed successfully.")
+
+    if not analyze_retcode:
+      logging.info("Analysis completed successfully.")
+
+    return 0
+
+  def Main(self, args, check_sanity, min_runtime_in_seconds):
+    """Call this to run through the whole process: Setup, Execute, Analyze"""
+    start_time = datetime.datetime.now()
+    retcode = -1
+    if self.Setup(args):
+      retcode = self.RunTestsAndAnalyze(check_sanity)
+      shutil.rmtree(self.temp_dir, ignore_errors=True)
+      self.Cleanup()
+    else:
+      logging.error("Setup failed")
+    end_time = datetime.datetime.now()
+    runtime_in_seconds = (end_time - start_time).seconds
+    hours = runtime_in_seconds / 3600
+    seconds = runtime_in_seconds % 3600
+    minutes = seconds / 60
+    seconds = seconds % 60
+    logging.info("elapsed time: %02d:%02d:%02d" % (hours, minutes, seconds))
+    if (min_runtime_in_seconds > 0 and
+        runtime_in_seconds < min_runtime_in_seconds):
+      logging.error("Layout tests finished too quickly. "
+                    "It should have taken at least %d seconds. "
+                    "Something went wrong?" % min_runtime_in_seconds)
+      retcode = -1
+    return retcode
+
+  def Run(self, args, module, min_runtime_in_seconds=0):
+    MODULES_TO_SANITY_CHECK = ["base"]
+
+    check_sanity = module in MODULES_TO_SANITY_CHECK
+    return self.Main(args, check_sanity, min_runtime_in_seconds)
+
+
+class ValgrindTool(BaseTool):
+  """Abstract class for running Valgrind tools.
+
+  Always subclass this and implement ToolSpecificFlags() and
+  ExtendOptionParser() for tool-specific stuff.
+  """
+  def __init__(self):
+    super(ValgrindTool, self).__init__()
+    self.RegisterOptionParserHook(ValgrindTool.ExtendOptionParser)
+
+  def UseXML(self):
+    # Override if tool prefers nonxml output
+    return True
+
+  def ExtendOptionParser(self, parser):
+    parser.add_option("", "--suppressions", default=[],
+                            action="append",
+                            help="path to a valgrind suppression file")
+    parser.add_option("", "--indirect", action="store_true",
+                            default=False,
+                            help="set BROWSER_WRAPPER rather than "
+                                 "running valgrind directly")
+    parser.add_option("", "--indirect_webkit_layout", action="store_true",
+                            default=False,
+                            help="set --wrapper rather than running Dr. Memory "
+                                 "directly.")
+    parser.add_option("", "--trace_children", action="store_true",
+                            default=False,
+                            help="also trace child processes")
+    parser.add_option("", "--num-callers",
+                            dest="num_callers", default=30,
+                            help="number of callers to show in stack traces")
+    parser.add_option("", "--generate_dsym", action="store_true",
+                          default=False,
+                          help="Generate .dSYM file on Mac if needed. Slow!")
+
+  def Setup(self, args):
+    if not BaseTool.Setup(self, args):
+      return False
+    return True
+
+  def ToolCommand(self):
+    """Get the valgrind command to run."""
+    # Note that self._args begins with the exe to be run.
+    tool_name = self.ToolName()
+
+    # Construct the valgrind command.
+    if 'CHROME_VALGRIND' in os.environ:
+      path = os.path.join(os.environ['CHROME_VALGRIND'], "bin", "valgrind")
+    else:
+      path = "valgrind"
+    proc = [path, "--tool=%s" % tool_name]
+
+    proc += ["--num-callers=%i" % int(self._options.num_callers)]
+
+    if self._options.trace_children:
+      proc += ["--trace-children=yes"]
+      proc += ["--trace-children-skip='*dbus-daemon*'"]
+      proc += ["--trace-children-skip='*dbus-launch*'"]
+      proc += ["--trace-children-skip='*perl*'"]
+      proc += ["--trace-children-skip='*python*'"]
+      # This is really Python, but for some reason Valgrind follows it.
+      proc += ["--trace-children-skip='*lsb_release*'"]
+
+    proc += self.ToolSpecificFlags()
+    proc += self._tool_flags
+
+    suppression_count = 0
+    for suppression_file in self._options.suppressions:
+      if os.path.exists(suppression_file):
+        suppression_count += 1
+        proc += ["--suppressions=%s" % suppression_file]
+
+    if not suppression_count:
+      logging.warning("WARNING: NOT USING SUPPRESSIONS!")
+
+    logfilename = self.log_dir + ("/%s." % tool_name) + "%p"
+    if self.UseXML():
+      proc += ["--xml=yes", "--xml-file=" + logfilename]
+    else:
+      proc += ["--log-file=" + logfilename]
+
+    # The Valgrind command is constructed.
+
+    # Handle --indirect_webkit_layout separately.
+    if self._options.indirect_webkit_layout:
+      # Need to create the wrapper before modifying |proc|.
+      wrapper = self.CreateBrowserWrapper(proc, webkit=True)
+      proc = self._args
+      proc.append("--wrapper")
+      proc.append(wrapper)
+      return proc
+
+    if self._options.indirect:
+      wrapper = self.CreateBrowserWrapper(proc)
+      os.environ["BROWSER_WRAPPER"] = wrapper
+      logging.info('export BROWSER_WRAPPER=' + wrapper)
+      proc = []
+    proc += self._args
+    return proc
+
+  def ToolSpecificFlags(self):
+    raise NotImplementedError, "This method should be implemented " \
+                               "in the tool-specific subclass"
+
+  def CreateBrowserWrapper(self, proc, webkit=False):
+    """The program being run invokes Python or something else that can't stand
+    to be valgrinded, and also invokes the Chrome browser. In this case, use a
+    magic wrapper to only valgrind the Chrome browser. Build the wrapper here.
+    Returns the path to the wrapper. It's up to the caller to use the wrapper
+    appropriately.
+    """
+    command = " ".join(proc)
+    # Add the PID of the browser wrapper to the logfile names so we can
+    # separate log files for different UI tests at the analyze stage.
+    command = command.replace("%p", "$$.%p")
+
+    (fd, indirect_fname) = tempfile.mkstemp(dir=self.log_dir,
+                                            prefix="browser_wrapper.",
+                                            text=True)
+    f = os.fdopen(fd, "w")
+    f.write('#!/bin/bash\n'
+            'echo "Started Valgrind wrapper for this test, PID=$$" >&2\n')
+
+    f.write('DIR=`dirname $0`\n'
+            'TESTNAME_FILE=$DIR/testcase.$$.name\n\n')
+
+    if webkit:
+      # Webkit layout_tests pass the URL as the first line of stdin.
+      f.write('tee $TESTNAME_FILE | %s "$@"\n' % command)
+    else:
+      # Try to get the test case name by looking at the program arguments.
+      # i.e. Chromium ui_tests used --test-name arg.
+      # TODO(timurrrr): This doesn't handle "--test-name Test.Name"
+      # TODO(timurrrr): ui_tests are dead. Where do we use the non-webkit
+      # wrapper now? browser_tests? What do they do?
+      f.write('for arg in $@\ndo\n'
+              '  if [[ "$arg" =~ --test-name=(.*) ]]\n  then\n'
+              '    echo ${BASH_REMATCH[1]} >$TESTNAME_FILE\n'
+              '  fi\n'
+              'done\n\n'
+              '%s "$@"\n' % command)
+
+    f.close()
+    os.chmod(indirect_fname, stat.S_IRUSR|stat.S_IXUSR)
+    return indirect_fname
+
+  def CreateAnalyzer(self):
+    raise NotImplementedError, "This method should be implemented " \
+                               "in the tool-specific subclass"
+
+  def GetAnalyzeResults(self, check_sanity=False):
+    # Glob all the files in the log directory
+    filenames = glob.glob(self.log_dir + "/" + self.ToolName() + ".*")
+
+    # If we have browser wrapper, the logfiles are named as
+    # "toolname.wrapper_PID.valgrind_PID".
+    # Let's extract the list of wrapper_PIDs and name it ppids
+    ppids = set([int(f.split(".")[-2]) \
+                for f in filenames if re.search("\.[0-9]+\.[0-9]+$", f)])
+
+    analyzer = self.CreateAnalyzer()
+    if len(ppids) == 0:
+      # Fast path - no browser wrapper was set.
+      return analyzer.Report(filenames, None, check_sanity)
+
+    ret = 0
+    for ppid in ppids:
+      testcase_name = None
+      try:
+        f = open(self.log_dir + ("/testcase.%d.name" % ppid))
+        testcase_name = f.read().strip()
+        f.close()
+        wk_layout_prefix="third_party/WebKit/LayoutTests/"
+        wk_prefix_at = testcase_name.rfind(wk_layout_prefix)
+        if wk_prefix_at != -1:
+          testcase_name = testcase_name[wk_prefix_at + len(wk_layout_prefix):]
+      except IOError:
+        pass
+      print "====================================================="
+      print " Below is the report for valgrind wrapper PID=%d." % ppid
+      if testcase_name:
+        print " It was used while running the `%s` test." % testcase_name
+      else:
+        print " You can find the corresponding test"
+        print " by searching the above log for 'PID=%d'" % ppid
+      sys.stdout.flush()
+
+      ppid_filenames = [f for f in filenames \
+                        if re.search("\.%d\.[0-9]+$" % ppid, f)]
+      # check_sanity won't work with browser wrappers
+      assert check_sanity == False
+      ret |= analyzer.Report(ppid_filenames, testcase_name)
+      print "====================================================="
+      sys.stdout.flush()
+
+    if ret != 0:
+      print ""
+      print "The Valgrind reports are grouped by test names."
+      print "Each test has its PID printed in the log when the test was run"
+      print "and at the beginning of its Valgrind report."
+      print "Hint: you can search for the reports by Ctrl+F -> `=#`"
+      sys.stdout.flush()
+
+    return ret
+
+
+# TODO(timurrrr): Split into a separate file.
+class Memcheck(ValgrindTool):
+  """Memcheck
+  Dynamic memory error detector for Linux & Mac
+
+  http://valgrind.org/info/tools.html#memcheck
+  """
+
+  def __init__(self):
+    super(Memcheck, self).__init__()
+    self.RegisterOptionParserHook(Memcheck.ExtendOptionParser)
+
+  def ToolName(self):
+    return "memcheck"
+
+  def ExtendOptionParser(self, parser):
+    parser.add_option("--leak-check", "--leak_check", type="string",
+                      default="yes",  # --leak-check=yes is equivalent of =full
+                      help="perform leak checking at the end of the run")
+    parser.add_option("", "--show_all_leaks", action="store_true",
+                      default=False,
+                      help="also show less blatant leaks")
+    parser.add_option("", "--track_origins", action="store_true",
+                      default=False,
+                      help="Show whence uninitialized bytes came. 30% slower.")
+
+  def ToolSpecificFlags(self):
+    ret = ["--gen-suppressions=all", "--demangle=no"]
+    ret += ["--leak-check=%s" % self._options.leak_check]
+
+    if self._options.show_all_leaks:
+      ret += ["--show-reachable=yes"]
+    else:
+      ret += ["--show-possibly-lost=no"]
+
+    if self._options.track_origins:
+      ret += ["--track-origins=yes"]
+
+    # TODO(glider): this is a temporary workaround for http://crbug.com/51716
+    # Let's see whether it helps.
+    if common.IsMac():
+      ret += ["--smc-check=all"]
+
+    return ret
+
+  def CreateAnalyzer(self):
+    use_gdb = common.IsMac()
+    return memcheck_analyze.MemcheckAnalyzer(self._source_dir,
+                                            self._options.show_all_leaks,
+                                            use_gdb=use_gdb)
+
+  def Analyze(self, check_sanity=False):
+    ret = self.GetAnalyzeResults(check_sanity)
+
+    if ret != 0:
+      logging.info("Please see http://dev.chromium.org/developers/how-tos/"
+                   "using-valgrind for the info on Memcheck/Valgrind")
+    return ret
+
+
+class ToolFactory:
+  def Create(self, tool_name):
+    if tool_name == "memcheck":
+      return Memcheck()
+    try:
+      platform_name = common.PlatformNames()[0]
+    except common.NotImplementedError:
+      platform_name = sys.platform + "(Unknown)"
+    raise RuntimeError, "Unknown tool (tool=%s, platform=%s)" % (tool_name,
+                                                                 platform_name)
+
+def CreateTool(tool):
+  return ToolFactory().Create(tool)