#!/usr/bin/env python
#
# Copyright (C) 2013 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""stack symbolizes native crash dumps."""

import getopt
import sys

import stack_core
import symbol


def PrintUsage():
  """Print usage and exit with error."""
  # pylint: disable-msg=C6310
  print
  print "  usage: " + sys.argv[0] + " [options] [FILE]"
  print
  print "  --arch=arm|x86"
  print "       the target architecture"
  print
  print "  FILE should contain a stack trace in it somewhere"
  print "       the tool will find that and re-print it with"
  print "       source files and line numbers.  If you don't"
  print "       pass FILE, or if file is -, it reads from"
  print "       stdin."
  print
  # pylint: enable-msg=C6310
  sys.exit(1)


def main():
  try:
    options, arguments = getopt.getopt(sys.argv[1:], "",
                                       ["arch=",
                                        "help"])
  except getopt.GetoptError, unused_error:
    PrintUsage()

  for option, value in options:
    if option == "--help":
      PrintUsage()
    elif option == "--arch":
      symbol.ARCH = value

  if len(arguments) > 1:
    PrintUsage()

  if not arguments or arguments[0] == "-":
    print "Reading native crash info from stdin"
    f = sys.stdin
  else:
    print "Searching for native crashes in %s" % arguments[0]
    f = open(arguments[0], "r")

  lines = f.readlines()
  f.close()

  stack_core.ConvertTrace(lines)

if __name__ == "__main__":
  main()

# vi: ts=2 sw=2