2012-01-05 Paul Thomas <pault@gcc.gnu.org>
[official-gcc.git] / libstdc++-v3 / scripts / extract_symvers.in
blob99dd11152a1081eeea37219c5d0add4f8d2b3663
1 #!/bin/sh
3 # Copyright (C) 2002, 2003, 2009, 2010 Free Software Foundation, Inc.
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 3, or (at your option)
9 # any later version.
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.
16 # You should have received a copy of the GNU General Public License along
17 # with this library; see the file COPYING3. If not see
18 # <http://www.gnu.org/licenses/>.
21 if test ${#} -lt 2 || test $1 = '--help'; then
22 echo "Usage: extract_symvers shared_lib output_file" 1>&2
23 exit 1
26 lib=$1
27 output=$2
29 # This avoids weird sorting problems later.
30 LC_ALL=C
31 export LC_ALL
32 LANG=C
33 export LANG
35 tmp=extract.$$
37 case `uname -s` in
38 SunOS)
39 # Ensure that output on Solaris 2 matches readelf below without requiring
40 # GNU binutils to be installed. This requires a combination of pvs and
41 # elfdump, which is easier handled in a perl script.
42 perl @glibcxx_srcdir@/scripts/extract_symvers.pl ${lib} > $tmp 2>&1
45 # GNU binutils, somewhere after version 2.11.2, requires -W/--wide to
46 # avoid default line truncation. -W is not supported and truncation did
47 # not occur by default before that point.
48 readelf="readelf --symbols"
49 if readelf --help | grep -- --wide > /dev/null; then
50 readelf="$readelf --wide"
52 ${readelf} ${lib} |\
53 sed -e 's/ \[<other>: [A-Fa-f0-9]*\] //' -e '/\.dynsym/,/^$/p;d' |\
54 egrep -v ' (LOCAL|UND) ' |\
55 sed -e 's/ <processor specific>: / <processor_specific>:_/g' |\
56 sed -e 's/ <OS specific>: / <OS_specific>:_/g' |\
57 sed -e 's/ <unknown>: / <unknown>:_/g' |\
58 awk '{ if ($4 == "FUNC" || $4 == "NOTYPE")
59 printf "%s:%s\n", $4, $8;
60 else if ($4 == "OBJECT" || $4 == "TLS")
61 printf "%s:%s:%s\n", $4, $3, $8;
62 }' | sort | uniq > $tmp 2>&1
63 # else printf "Huh? What is %s?\n", $8;
65 esac
67 # I think we'll be doing some more with this file, but for now, dump.
68 mv $tmp $output
70 exit 0