Merge to XFA: Add Dr. Memory tool

This CL adds DrMemory-Windows-sfx.exe into tools/drmemory.
It also adds a set of scripts from chromium/src/tools/valgrind for
running Dr. Memory.  Now we can run pdfium tests with Dr. Memory:
$ .\tools\drmemory\scripts\pdfium_tests.bat -b out\Debug -t pdfium_unittests

More update on scripts is required, but this should be a good start.

Changes from chromium/src/tools/valgrind
- rename chrome_tests.py to pdfium_tests.py
- update pdfium_tests.bat
- remove chrome tests in pdfium_tests.py
- remove memcheck code in valgrind_test.py

R=thestig@chromium.org
BUG=pdfium:238

Review URL: https://codereview.chromium.org/1452293002 .

(cherry picked from commit 4dcf313c46c176e5afa1328f5f07fce4e614366d)

Review URL: https://codereview.chromium.org/1452373004 .

1 files changed, 370 insertions, 0 deletions

diff --git a/tools/drmemory/scripts/pdfium_tests.py b/tools/drmemory/scripts/pdfium_tests.py
new file mode 100644
index 0000000000..6cc7d57f53
--- /dev/null
+++ b/tools/drmemory/scripts/pdfium_tests.py
@@ -0,0 +1,370 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+''' Runs various chrome tests through valgrind_test.py.'''
+
+import glob
+import logging
+import optparse
+import os
+import subprocess
+import sys
+
+import logging_utils
+import path_utils
+
+import common
+import valgrind_test
+
+class TestNotFound(Exception): pass
+
+class MultipleGTestFiltersSpecified(Exception): pass
+
+class BuildDirNotFound(Exception): pass
+
+class BuildDirAmbiguous(Exception): pass
+
+class ExecutableNotFound(Exception): pass
+
+class BadBinary(Exception): pass
+
+class ChromeTests:
+  SLOW_TOOLS = ["drmemory"]
+
+  def __init__(self, options, args, test):
+    if ':' in test:
+      (self._test, self._gtest_filter) = test.split(':', 1)
+    else:
+      self._test = test
+      self._gtest_filter = options.gtest_filter
+
+    if self._test not in self._test_list:
+      raise TestNotFound("Unknown test: %s" % test)
+
+    if options.gtest_filter and options.gtest_filter != self._gtest_filter:
+      raise MultipleGTestFiltersSpecified("Can not specify both --gtest_filter "
+                                          "and --test %s" % test)
+
+    self._options = options
+    self._args = args
+
+    script_dir = path_utils.ScriptDir()
+    # Compute the top of the tree (the "source dir") from the script dir (where
+    # this script lives).  We assume that the script dir is in tools/valgrind/
+    # relative to the top of the tree.
+    self._source_dir = os.path.dirname(os.path.dirname(script_dir))
+    # since this path is used for string matching, make sure it's always
+    # an absolute Unix-style path
+    self._source_dir = os.path.abspath(self._source_dir).replace('\\', '/')
+    valgrind_test_script = os.path.join(script_dir, "valgrind_test.py")
+    self._command_preamble = ["--source-dir=%s" % (self._source_dir)]
+
+    if not self._options.build_dir:
+      dirs = [
+        os.path.join(self._source_dir, "xcodebuild", "Debug"),
+        os.path.join(self._source_dir, "out", "Debug"),
+        os.path.join(self._source_dir, "build", "Debug"),
+      ]
+      build_dir = [d for d in dirs if os.path.isdir(d)]
+      if len(build_dir) > 1:
+        raise BuildDirAmbiguous("Found more than one suitable build dir:\n"
+                                "%s\nPlease specify just one "
+                                "using --build-dir" % ", ".join(build_dir))
+      elif build_dir:
+        self._options.build_dir = build_dir[0]
+      else:
+        self._options.build_dir = None
+
+    if self._options.build_dir:
+      build_dir = os.path.abspath(self._options.build_dir)
+      self._command_preamble += ["--build-dir=%s" % (self._options.build_dir)]
+
+  def _EnsureBuildDirFound(self):
+    if not self._options.build_dir:
+      raise BuildDirNotFound("Oops, couldn't find a build dir, please "
+                             "specify it manually using --build-dir")
+
+  def _DefaultCommand(self, tool, exe=None, valgrind_test_args=None):
+    '''Generates the default command array that most tests will use.'''
+    if exe and common.IsWindows():
+      exe += '.exe'
+
+    cmd = list(self._command_preamble)
+
+    # Find all suppressions matching the following pattern:
+    # tools/valgrind/TOOL/suppressions[_PLATFORM].txt
+    # and list them with --suppressions= prefix.
+    script_dir = path_utils.ScriptDir()
+    tool_name = tool.ToolName();
+    suppression_file = os.path.join(script_dir, tool_name, "suppressions.txt")
+    if os.path.exists(suppression_file):
+      cmd.append("--suppressions=%s" % suppression_file)
+    # Platform-specific suppression
+    for platform in common.PlatformNames():
+      platform_suppression_file = \
+          os.path.join(script_dir, tool_name, 'suppressions_%s.txt' % platform)
+      if os.path.exists(platform_suppression_file):
+        cmd.append("--suppressions=%s" % platform_suppression_file)
+
+    if self._options.valgrind_tool_flags:
+      cmd += self._options.valgrind_tool_flags.split(" ")
+    if self._options.keep_logs:
+      cmd += ["--keep_logs"]
+    if valgrind_test_args != None:
+      for arg in valgrind_test_args:
+        cmd.append(arg)
+    if exe:
+      self._EnsureBuildDirFound()
+      exe_path = os.path.join(self._options.build_dir, exe)
+      if not os.path.exists(exe_path):
+        raise ExecutableNotFound("Couldn't find '%s'" % exe_path)
+
+      # Make sure we don't try to test ASan-built binaries
+      # with other dynamic instrumentation-based tools.
+      # TODO(timurrrr): also check TSan and MSan?
+      # `nm` might not be available, so use try-except.
+      try:
+        # Do not perform this check on OS X, as 'nm' on 10.6 can't handle
+        # binaries built with Clang 3.5+.
+        if not common.IsMac():
+          nm_output = subprocess.check_output(["nm", exe_path])
+          if nm_output.find("__asan_init") != -1:
+            raise BadBinary("You're trying to run an executable instrumented "
+                            "with AddressSanitizer under %s. Please provide "
+                            "an uninstrumented executable." % tool_name)
+      except OSError:
+        pass
+
+      cmd.append(exe_path)
+      # Valgrind runs tests slowly, so slow tests hurt more; show elapased time
+      # so we can find the slowpokes.
+      cmd.append("--gtest_print_time")
+      # Built-in test launcher for gtest-based executables runs tests using
+      # multiple process by default. Force the single-process mode back.
+      cmd.append("--single-process-tests")
+    if self._options.gtest_repeat:
+      cmd.append("--gtest_repeat=%s" % self._options.gtest_repeat)
+    if self._options.gtest_shuffle:
+      cmd.append("--gtest_shuffle")
+    if self._options.gtest_break_on_failure:
+      cmd.append("--gtest_break_on_failure")
+    if self._options.test_launcher_bot_mode:
+      cmd.append("--test-launcher-bot-mode")
+    if self._options.test_launcher_total_shards is not None:
+      cmd.append("--test-launcher-total-shards=%d" % self._options.test_launcher_total_shards)
+    if self._options.test_launcher_shard_index is not None:
+      cmd.append("--test-launcher-shard-index=%d" % self._options.test_launcher_shard_index)
+    return cmd
+
+  def Run(self):
+    ''' Runs the test specified by command-line argument --test '''
+    logging.info("running test %s" % (self._test))
+    return self._test_list[self._test](self)
+
+  def _AppendGtestFilter(self, tool, name, cmd):
+    '''Append an appropriate --gtest_filter flag to the googletest binary
+       invocation.
+       If the user passed his own filter mentioning only one test, just use it.
+       Othewise, filter out tests listed in the appropriate gtest_exclude files.
+    '''
+    if (self._gtest_filter and
+        ":" not in self._gtest_filter and
+        "?" not in self._gtest_filter and
+        "*" not in self._gtest_filter):
+      cmd.append("--gtest_filter=%s" % self._gtest_filter)
+      return
+
+    filters = []
+    gtest_files_dir = os.path.join(path_utils.ScriptDir(), "gtest_exclude")
+
+    gtest_filter_files = [
+        os.path.join(gtest_files_dir, name + ".gtest-%s.txt" % tool.ToolName())]
+    # Use ".gtest.txt" files only for slow tools, as they now contain
+    # Valgrind- and Dr.Memory-specific filters.
+    # TODO(glider): rename the files to ".gtest_slow.txt"
+    if tool.ToolName() in ChromeTests.SLOW_TOOLS:
+      gtest_filter_files += [os.path.join(gtest_files_dir, name + ".gtest.txt")]
+    for platform_suffix in common.PlatformNames():
+      gtest_filter_files += [
+        os.path.join(gtest_files_dir, name + ".gtest_%s.txt" % platform_suffix),
+        os.path.join(gtest_files_dir, name + ".gtest-%s_%s.txt" % \
+            (tool.ToolName(), platform_suffix))]
+    logging.info("Reading gtest exclude filter files:")
+    for filename in gtest_filter_files:
+      # strip the leading absolute path (may be very long on the bot)
+      # and the following / or \.
+      readable_filename = filename.replace("\\", "/")  # '\' on Windows
+      readable_filename = readable_filename.replace(self._source_dir, "")[1:]
+      if not os.path.exists(filename):
+        logging.info("  \"%s\" - not found" % readable_filename)
+        continue
+      logging.info("  \"%s\" - OK" % readable_filename)
+      f = open(filename, 'r')
+      for line in f.readlines():
+        if line.startswith("#") or line.startswith("//") or line.isspace():
+          continue
+        line = line.rstrip()
+        test_prefixes = ["FLAKY", "FAILS"]
+        for p in test_prefixes:
+          # Strip prefixes from the test names.
+          line = line.replace(".%s_" % p, ".")
+        # Exclude the original test name.
+        filters.append(line)
+        if line[-2:] != ".*":
+          # List all possible prefixes if line doesn't end with ".*".
+          for p in test_prefixes:
+            filters.append(line.replace(".", ".%s_" % p))
+    # Get rid of duplicates.
+    filters = set(filters)
+    gtest_filter = self._gtest_filter
+    if len(filters):
+      if gtest_filter:
+        gtest_filter += ":"
+        if gtest_filter.find("-") < 0:
+          gtest_filter += "-"
+      else:
+        gtest_filter = "-"
+      gtest_filter += ":".join(filters)
+    if gtest_filter:
+      cmd.append("--gtest_filter=%s" % gtest_filter)
+
+  @staticmethod
+  def ShowTests():
+    test_to_names = {}
+    for name, test_function in ChromeTests._test_list.iteritems():
+      test_to_names.setdefault(test_function, []).append(name)
+
+    name_to_aliases = {}
+    for names in test_to_names.itervalues():
+      names.sort(key=lambda name: len(name))
+      name_to_aliases[names[0]] = names[1:]
+
+    print
+    print "Available tests:"
+    print "----------------"
+    for name, aliases in sorted(name_to_aliases.iteritems()):
+      if aliases:
+        print "   {} (aka {})".format(name, ', '.join(aliases))
+      else:
+        print "   {}".format(name)
+
+  def SetupLdPath(self, requires_build_dir):
+    if requires_build_dir:
+      self._EnsureBuildDirFound()
+    elif not self._options.build_dir:
+      return
+
+    # Append build_dir to LD_LIBRARY_PATH so external libraries can be loaded.
+    if (os.getenv("LD_LIBRARY_PATH")):
+      os.putenv("LD_LIBRARY_PATH", "%s:%s" % (os.getenv("LD_LIBRARY_PATH"),
+                                              self._options.build_dir))
+    else:
+      os.putenv("LD_LIBRARY_PATH", self._options.build_dir)
+
+  def SimpleTest(self, module, name, valgrind_test_args=None, cmd_args=None):
+    tool = valgrind_test.CreateTool(self._options.valgrind_tool)
+    cmd = self._DefaultCommand(tool, name, valgrind_test_args)
+    self._AppendGtestFilter(tool, name, cmd)
+    cmd.extend(['--test-tiny-timeout=1000'])
+    if cmd_args:
+      cmd.extend(cmd_args)
+
+    self.SetupLdPath(True)
+    return tool.Run(cmd, module)
+
+  def RunCmdLine(self):
+    tool = valgrind_test.CreateTool(self._options.valgrind_tool)
+    cmd = self._DefaultCommand(tool, None, self._args)
+    self.SetupLdPath(False)
+    return tool.Run(cmd, None)
+
+  def TestPDFiumUnitTests(self):
+    return self.SimpleTest("pdfium_unittests", "pdfium_unittests")
+
+  def TestPDFiumEmbedderTests(self):
+    return self.SimpleTest("pdfium_embeddertests", "pdfium_embeddertests")
+
+  # The known list of tests.
+  _test_list = {
+    "cmdline" : RunCmdLine,
+    "pdfium_unittests": TestPDFiumUnitTests,
+    "pdfium_embeddertests": TestPDFiumEmbedderTests,
+  }
+
+
+def _main():
+  parser = optparse.OptionParser("usage: %prog -b <dir> -t <test> "
+                                 "[-t <test> ...]")
+
+  parser.add_option("--help-tests", dest="help_tests", action="store_true",
+                    default=False, help="List all available tests")
+  parser.add_option("-b", "--build-dir",
+                    help="the location of the compiler output")
+  parser.add_option("--target", help="Debug or Release")
+  parser.add_option("-t", "--test", action="append", default=[],
+                    help="which test to run, supports test:gtest_filter format "
+                         "as well.")
+  parser.add_option("--gtest_filter",
+                    help="additional arguments to --gtest_filter")
+  parser.add_option("--gtest_repeat", help="argument for --gtest_repeat")
+  parser.add_option("--gtest_shuffle", action="store_true", default=False,
+                    help="Randomize tests' orders on every iteration.")
+  parser.add_option("--gtest_break_on_failure", action="store_true",
+                    default=False,
+                    help="Drop in to debugger on assertion failure. Also "
+                         "useful for forcing tests to exit with a stack dump "
+                         "on the first assertion failure when running with "
+                         "--gtest_repeat=-1")
+  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="drmemory_full",
+                    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.")
+  parser.add_option("--test-launcher-bot-mode", action="store_true",
+                    help="run the tests with --test-launcher-bot-mode")
+  parser.add_option("--test-launcher-total-shards", type=int,
+                    help="run the tests with --test-launcher-total-shards")
+  parser.add_option("--test-launcher-shard-index", type=int,
+                    help="run the tests with --test-launcher-shard-index")
+
+  options, args = parser.parse_args()
+
+  # Bake target into build_dir.
+  if options.target and options.build_dir:
+    assert (options.target !=
+            os.path.basename(os.path.dirname(options.build_dir)))
+    options.build_dir = os.path.join(os.path.abspath(options.build_dir),
+                                     options.target)
+
+  if options.verbose:
+    logging_utils.config_root(logging.DEBUG)
+  else:
+    logging_utils.config_root()
+
+  if options.help_tests:
+    ChromeTests.ShowTests()
+    return 0
+
+  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 = ChromeTests(options, args, t)
+    ret = tests.Run()
+    if ret: return ret
+  return 0
+
+
+if __name__ == "__main__":
+  sys.exit(_main())