33333aa345
"trap ... HUP ..." if the named signals cause the trap statement to fail. This improves backwards compatibility of this script.
93 lines
3.6 KiB
Bash
93 lines
3.6 KiB
Bash
#!/bin/sh -
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# $NetBSD: lorder.sh,v 1.10 2001/09/28 14:41:44 tv Exp $
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#
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# Copyright (c) 1990, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by the University of
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# California, Berkeley and its contributors.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# @(#)lorder.sh 8.1 (Berkeley) 6/6/93
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#
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# If the user has set ${NM} then we use it, otherwise we use 'nm'.
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# We try to find the compiler in the user's path, and if that fails we
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# try to find it in the default path. If we can't find it, we punt.
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# Once we find it, we canonicalize its name and set the path to the
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# default path so that other commands we use are picked properly.
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if ! type "${NM:=nm}" > /dev/null 2>&1; then
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PATH=/bin:/usr/bin
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export PATH
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if ! type "${NM}" > /dev/null 2>&1; then
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echo "lorder: ${NM}: not found"
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exit 1
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fi
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fi
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cmd='set `type "${NM}"` ; eval echo \$$#'
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NM=`eval $cmd`
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# only one argument is a special case, just output the name twice
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case $# in
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0)
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echo "usage: lorder file ...";
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exit ;;
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1)
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echo $1 $1;
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exit ;;
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esac
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# temporary files
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N=`mktemp /tmp/_nm_.XXXXXX` || exit 1
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R=`mktemp /tmp/_reference_.XXXXXX` || exit 1
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S=`mktemp /tmp/_symbol_.XXXXXX` || exit 1
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# remove temporary files on exit
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trap "rm -f $N $R $S; exit 0" 0
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trap "rm -f $N $R $S; exit 1" HUP INT QUIT PIPE TERM 2>/dev/null || \
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trap "rm -f $N $R $S; exit 1" 1 2 3 13 15
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# if the line ends in a colon, assume it's the first occurrence of a new
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# object file. Echo it twice, just to make sure it gets into the output.
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#
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# if the line has " T " or " D " it's a globally defined symbol, put it
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# into the symbol file.
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#
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# if the line has " U " it's a globally undefined symbol, put it into
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# the reference file.
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(for file in $* ; do echo $file":" ; done ; $NM -go $*) >$N
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sed -ne '/:$/{s/://;s/.*/& &/;p;}' <$N
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sed -ne 's/:.* [TDGR] / /p' <$N >$S
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sed -ne 's/:.* U / /p' <$N >$R
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# sort symbols and references on the first field (the symbol)
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# join on that field, and print out the file names.
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sort +1 $R -o $R
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sort +1 $S -o $S
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join -j 2 -o 1.1 2.1 $R $S
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