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130 lines
3.8 KiB
Python
130 lines
3.8 KiB
Python
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# pylint: disable=R0201
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import glob
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import logging
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import os.path
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import subprocess
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import sys
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from devil.android import device_errors
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from devil.android.valgrind_tools import base_tool
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from pylib.constants import DIR_SOURCE_ROOT
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def SetChromeTimeoutScale(device, scale):
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"""Sets the timeout scale in /data/local/tmp/chrome_timeout_scale to scale."""
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path = '/data/local/tmp/chrome_timeout_scale'
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if not scale or scale == 1.0:
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# Delete if scale is None/0.0/1.0 since the default timeout scale is 1.0
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device.RemovePath(path, force=True, as_root=True)
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else:
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device.WriteFile(path, '%f' % scale, as_root=True)
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class AddressSanitizerTool(base_tool.BaseTool):
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"""AddressSanitizer tool."""
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WRAPPER_NAME = '/system/bin/asanwrapper'
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# Disable memcmp overlap check.There are blobs (gl drivers)
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# on some android devices that use memcmp on overlapping regions,
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# nothing we can do about that.
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EXTRA_OPTIONS = 'strict_memcmp=0,use_sigaltstack=1'
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def __init__(self, device):
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super(AddressSanitizerTool, self).__init__()
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self._device = device
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@classmethod
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def CopyFiles(cls, device):
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"""Copies ASan tools to the device."""
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libs = glob.glob(os.path.join(DIR_SOURCE_ROOT,
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'third_party/llvm-build/Release+Asserts/',
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'lib/clang/*/lib/linux/',
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'libclang_rt.asan-arm-android.so'))
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assert len(libs) == 1
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subprocess.call(
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[os.path.join(
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DIR_SOURCE_ROOT,
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'tools/android/asan/third_party/asan_device_setup.sh'),
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'--device', str(device),
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'--lib', libs[0],
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'--extra-options', AddressSanitizerTool.EXTRA_OPTIONS])
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device.WaitUntilFullyBooted()
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def GetTestWrapper(self):
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return AddressSanitizerTool.WRAPPER_NAME
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def GetUtilWrapper(self):
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"""Returns the wrapper for utilities, such as forwarder.
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AddressSanitizer wrapper must be added to all instrumented binaries,
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including forwarder and the like. This can be removed if such binaries
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were built without instrumentation. """
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return self.GetTestWrapper()
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def SetupEnvironment(self):
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try:
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self._device.EnableRoot()
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except device_errors.CommandFailedError as e:
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# Try to set the timeout scale anyway.
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# TODO(jbudorick) Handle this exception appropriately after interface
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# conversions are finished.
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logging.error(str(e))
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SetChromeTimeoutScale(self._device, self.GetTimeoutScale())
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def CleanUpEnvironment(self):
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SetChromeTimeoutScale(self._device, None)
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def GetTimeoutScale(self):
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# Very slow startup.
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return 20.0
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TOOL_REGISTRY = {
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'asan': AddressSanitizerTool,
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}
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def CreateTool(tool_name, device):
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"""Creates a tool with the specified tool name.
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Args:
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tool_name: Name of the tool to create.
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device: A DeviceUtils instance.
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Returns:
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A tool for the specified tool_name.
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"""
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if not tool_name:
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return base_tool.BaseTool()
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ctor = TOOL_REGISTRY.get(tool_name)
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if ctor:
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return ctor(device)
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else:
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print 'Unknown tool %s, available tools: %s' % (
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tool_name, ', '.join(sorted(TOOL_REGISTRY.keys())))
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sys.exit(1)
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def PushFilesForTool(tool_name, device):
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"""Pushes the files required for |tool_name| to |device|.
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Args:
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tool_name: Name of the tool to create.
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device: A DeviceUtils instance.
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"""
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if not tool_name:
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return
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clazz = TOOL_REGISTRY.get(tool_name)
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if clazz:
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clazz.CopyFiles(device)
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else:
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print 'Unknown tool %s, available tools: %s' % (
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tool_name, ', '.join(sorted(TOOL_REGISTRY.keys())))
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sys.exit(1)
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