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138 lines
4.5 KiB
Python
Executable File
138 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2013 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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import collections
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import optparse
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import os
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import re
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import sys
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from pylib import constants
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from pylib.constants import host_paths
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# Uses symbol.py from third_party/android_platform, not python's.
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with host_paths.SysPath(
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host_paths.ANDROID_PLATFORM_DEVELOPMENT_SCRIPTS_PATH,
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position=0):
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import symbol
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_RE_ASAN = re.compile(r'(.*?)(#\S*?)\s+(\S*?)\s+\((.*?)\+(.*?)\)')
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# This named tuple models a parsed Asan log line.
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AsanParsedLine = collections.namedtuple('AsanParsedLine',
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'prefix,library,pos,rel_address')
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# This named tuple models an Asan log line. 'raw' is the raw content
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# while 'parsed' is None or an AsanParsedLine instance.
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AsanLogLine = collections.namedtuple('AsanLogLine', 'raw,parsed')
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def _ParseAsanLogLine(line):
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"""Parse line into corresponding AsanParsedLine value, if any, or None."""
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m = re.match(_RE_ASAN, line)
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if not m:
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return None
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return AsanParsedLine(prefix=m.group(1),
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library=m.group(4),
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pos=m.group(2),
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rel_address='%08x' % int(m.group(5), 16))
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def _FindASanLibraries():
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asan_lib_dir = os.path.join(host_paths.DIR_SOURCE_ROOT,
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'third_party', 'llvm-build',
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'Release+Asserts', 'lib')
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asan_libs = []
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for src_dir, _, files in os.walk(asan_lib_dir):
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asan_libs += [os.path.relpath(os.path.join(src_dir, f))
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for f in files
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if f.endswith('.so')]
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return asan_libs
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def _TranslateLibPath(library, asan_libs):
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for asan_lib in asan_libs:
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if os.path.basename(library) == os.path.basename(asan_lib):
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return '/' + asan_lib
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# pylint: disable=no-member
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return symbol.TranslateLibPath(library)
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def _PrintSymbolized(asan_input, arch):
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"""Print symbolized logcat output for Asan symbols.
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Args:
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asan_input: list of input lines.
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arch: Target CPU architecture.
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"""
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asan_libs = _FindASanLibraries()
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# Maps library -> [ AsanParsedLine... ]
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libraries = collections.defaultdict(list)
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asan_log_lines = []
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for line in asan_input:
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line = line.rstrip()
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parsed = _ParseAsanLogLine(line)
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if parsed:
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libraries[parsed.library].append(parsed)
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asan_log_lines.append(AsanLogLine(raw=line, parsed=parsed))
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# Maps library -> { address -> [(symbol, location, obj_sym_with_offset)...] }
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all_symbols = collections.defaultdict(dict)
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for library, items in libraries.iteritems():
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libname = _TranslateLibPath(library, asan_libs)
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lib_relative_addrs = set([i.rel_address for i in items])
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# pylint: disable=no-member
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info_dict = symbol.SymbolInformationForSet(libname,
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lib_relative_addrs,
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True,
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cpu_arch=arch)
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if info_dict:
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all_symbols[library] = info_dict
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for log_line in asan_log_lines:
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m = log_line.parsed
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if (m and m.library in all_symbols and
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m.rel_address in all_symbols[m.library]):
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# NOTE: all_symbols[lib][address] is a never-emtpy list of tuples.
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# NOTE: The documentation for SymbolInformationForSet() indicates
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# that usually one wants to display the last list item, not the first.
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# The code below takes the first, is this the best choice here?
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s = all_symbols[m.library][m.rel_address][0]
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print '%s%s %s %s' % (m.prefix, m.pos, s[0], s[1])
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else:
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print log_line.raw
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def main():
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parser = optparse.OptionParser()
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parser.add_option('-l', '--logcat',
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help='File containing adb logcat output with ASan stacks. '
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'Use stdin if not specified.')
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parser.add_option('--output-directory',
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help='Path to the root build directory.')
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parser.add_option('--arch', default='arm',
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help='CPU architecture name')
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options, _ = parser.parse_args()
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if options.output_directory:
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constants.SetOutputDirectory(options.output_directory)
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# Do an up-front test that the output directory is known.
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constants.CheckOutputDirectory()
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if options.logcat:
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asan_input = file(options.logcat, 'r')
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else:
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asan_input = sys.stdin
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_PrintSymbolized(asan_input.readlines(), options.arch)
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if __name__ == "__main__":
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sys.exit(main())
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