1#!/bin/bash
2# Copyright 2012 the V8 project authors. All rights reserved.
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8#       notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10#       copyright notice, this list of conditions and the following
11#       disclaimer in the documentation and/or other materials provided
12#       with the distribution.
13#     * Neither the name of Google Inc. nor the names of its
14#       contributors may be used to endorse or promote products derived
15#       from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29# Checks that the number of compilation units having at least one static
30# initializer in d8 matches the one defined below.
31
32# Allow:
33#  - _GLOBAL__I__ZN2v810LineEditor6first_E
34#  - _GLOBAL__I__ZN2v88internal32AtomicOps_Internalx86CPUFeaturesE
35expected_static_init_count=2
36
37v8_root=$(readlink -f $(dirname $BASH_SOURCE)/../)
38
39if [ -n "$1" ] ; then
40  d8="${v8_root}/$1"
41else
42  d8="${v8_root}/d8"
43fi
44
45if [ ! -f "$d8" ]; then
46  echo "d8 binary not found: $d8"
47  exit 1
48fi
49
50static_inits=$(nm "$d8" | grep _GLOBAL_ | grep _I_ | awk '{ print $NF; }')
51
52static_init_count=$(echo "$static_inits" | wc -l)
53
54if [ $static_init_count -gt $expected_static_init_count ]; then
55  echo "Too many static initializers."
56  echo "$static_inits"
57  exit 1
58else
59  echo "Static initializer check passed ($static_init_count initializers)."
60  exit 0
61fi
62