1#!/bin/sh
2
3# Copyright (C) 2002, 2003 Free Software Foundation, Inc.
4#
5# This file is part of the GNU ISO C++ Library.  This library is free
6# software; you can redistribute it and/or modify it under the
7# terms of the GNU General Public License as published by the
8# Free Software Foundation; either version 2, or (at your option)
9# any later version.
10#
11# This library is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License along
17# with this library; see the file COPYING.  If not, write to the Free
18# Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19# USA.
20#
21# As a special exception, you may use this file as part of a free software
22# library without restriction.  Specifically, if other files instantiate
23# templates or use macros or inline functions from this file, or you compile
24# this file and link it with other files to produce an executable, this
25# file does not by itself cause the resulting executable to be covered by
26# the GNU General Public License.  This exception does not however
27# invalidate any other reasons why the executable file might be covered by
28# the GNU General Public License.
29
30
31if test ${#} -lt 2 || test $1 = '--help'; then
32  echo "Usage:  extract_symvers  shared_lib output_file" 1>&2
33  exit 1
34fi
35
36lib=$1
37output=$2
38
39# GNU binutils, somewhere after version 2.11.2, requires -W/--wide to avoid
40# default line truncation.  -W is not supported and truncation did not occur
41# by default before that point.
42readelf="readelf --symbols"
43if readelf --help | grep -- --wide > /dev/null; then
44    readelf="$readelf --wide"
45fi
46
47# This avoids weird sorting problems later.
48LC_ALL=C
49export LC_ALL
50LANG=C
51export LANG
52
53tmp=extract.$$
54
55${readelf} ${lib} | sed '/\.dynsym/,/^$/p;d' | egrep -v ' (LOCAL|UND) ' |\
56awk '{ if ($4 == "FUNC" || $4 == "NOTYPE")
57         printf "%s:%s\n", $4, $8;
58       else if ($4 == "OBJECT")
59         printf "%s:%s:%s\n", $4, $3, $8;
60     }' | sort | uniq > $tmp 2>&1
61#       else printf "Huh?  What is %s?\n", $8;
62
63
64# I think we'll be doing some more with this file, but for now, dump.
65mv $tmp $output
66
67exit 0
68