# Copyright 2013 The Servo Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.

import sys
import re
import subprocess

symbol_regex = re.compile("D  \*UND\*\t(.*) (.*)$")
allowed_symbols = frozenset(['unshare', 'malloc_usable_size'])
actual_symbols = set()

objdump_output = subprocess.check_output([
    'arm-linux-androideabi-objdump',
    '-T',
    'target/arm-linux-androideabi/debug/libservo.so']
).split('\n')

for line in objdump_output:
    m = symbol_regex.search(line)
    if m is not None:
        actual_symbols.add(m.group(2))

difference = actual_symbols - allowed_symbols

if len(difference) > 0:
    human_readable_difference = ", ".join(str(s) for s in difference)
    print("Unexpected dynamic symbols in binary: {0}".format(human_readable_difference))
    sys.exit(-1)

# Copyright 2013 The Servo Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.

import sys
import re
import subprocess

symbol_regex = re.compile(b"D  \*UND\*\t(.*) (.*)$")
allowed_symbols = frozenset([b'unshare', b'malloc_usable_size'])
actual_symbols = set()

objdump_output = subprocess.check_output([
    'arm-linux-androideabi-objdump',
    '-T',
    'target/arm-linux-androideabi/debug/libservo.so']
).split(b'\n')

for line in objdump_output:
    m = symbol_regex.search(line)
    if m is not None:
        actual_symbols.add(m.group(2))

difference = actual_symbols - allowed_symbols

if len(difference) > 0:
    human_readable_difference = ", ".join(str(s) for s in difference)
    print("Unexpected dynamic symbols in binary: {0}".format(human_readable_difference))
    sys.exit(-1)

Add Python 3 compatibility to Android symbol checker
Add Python 3 compatibility to Android symbol checker

Make the script that checks for undefined Android symbols compatible
with both Python 2 and Python 3, to allow for future updates to the
default system Python on our build machines.

I'd like to land this before https://github.com/servo/saltfs/pull/249.

We currently use Ubuntu 14.04 (an LTS release); Ubuntu is aiming for
Python 3 as the default Python in the next LTS release, 16.04, and
I'd like to have any scripts be ready for the transition.
