1#!/bin/sh - 2# $NetBSD: lorder.sh,v 1.15 2007/01/14 16:29:35 apb Exp $ 3# 4# Copyright (c) 1990, 1993 5# The Regents of the University of California. All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 3. All advertising materials mentioning features or use of this software 16# must display the following acknowledgement: 17# This product includes software developed by the University of 18# California, Berkeley and its contributors. 19# 4. Neither the name of the University nor the names of its contributors 20# may be used to endorse or promote products derived from this software 21# without specific prior written permission. 22# 23# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33# SUCH DAMAGE. 34# 35# @(#)lorder.sh 8.1 (Berkeley) 6/6/93 36# 37 38# If the user has set ${NM} then we use it, otherwise we use 'nm'. 39# Similarly for JOIN, MKTEMP, SED, and SORT. 40# 41# For each of these, we try to find the command in the user's path, and 42# if that fails we try to find it in the default path. If we can't 43# find it, we punt. Once we find it, we canonicalize its name and set 44# the path to the default path so that other commands we use are picked 45# properly. 46 47: ${JOIN:=join} 48: ${MKTEMP:=mktemp} 49: ${NM:=nm} 50: ${SED:=sed} 51: ${SORT:=sort} 52for var in JOIN MKTEMP NM SED SORT ; do 53 if ! eval type "\$${var}" >/dev/null 2>&1 ; then 54 PATH=/bin:/usr/bin 55 export PATH 56 if ! eval type "\$${var}" > /dev/null 2>&1; then 57 eval echo "lorder: \$${var}: not found" >&2 58 exit 1 59 fi 60 fi 61 cmd='set $(eval type "\$${var}") ; eval echo \$$#' 62 eval "${var}=\$(eval \${cmd})" 63done 64 65# only one argument is a special case, just output the name twice 66case $# in 67 0) 68 echo "usage: lorder file ..." >&2; 69 exit ;; 70 1) 71 echo $1 $1; 72 exit ;; 73esac 74 75# temporary files 76N=$("${MKTEMP}" /tmp/_nm_.XXXXXX) || exit 1 77R=$("${MKTEMP}" /tmp/_reference_.XXXXXX) || exit 1 78S=$("${MKTEMP}" /tmp/_symbol_.XXXXXX) || exit 1 79 80# remove temporary files on exit 81trap "rm -f $N $R $S; exit 0" 0 82trap "rm -f $N $R $S; exit 1" HUP INT QUIT PIPE TERM 2>/dev/null || \ 83 trap "rm -f $N $R $S; exit 1" 1 2 3 13 15 84 85# if the line ends in a colon, assume it's the first occurrence of a new 86# object file. Echo it twice, just to make sure it gets into the output. 87# 88# if the line has " T " or " D " it's a globally defined symbol, put it 89# into the symbol file. 90# 91# if the line has " U " it's a globally undefined symbol, put it into 92# the reference file. 93(for file in $* ; do echo $file":" ; done ; $NM -go $*) >$N 94"${SED}" -ne '/:$/{s/://;s/.*/& &/;p;}' <$N 95"${SED}" -ne 's/:.* [TDGR] / /p' <$N >$S 96"${SED}" -ne 's/:.* U / /p' <$N >$R 97 98# sort symbols and references on the second field (the symbol) 99# join on that field, and print out the file names. 100"${SORT}" -k2 $R -o $R 101"${SORT}" -k2 $S -o $S 102"${JOIN}" -j 2 -o 1.1,2.1 $R $S 103