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Annotation of src/usr.bin/lorder/lorder.sh.gnm, Revision 1.1.1.1

1.1       deraadt     1: #!/bin/sh -
                      2: #      $NetBSD: lorder.sh.gnm,v 1.1 1995/04/24 07:39:06 cgd 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: PATH=/bin:/usr/bin
                     39: export PATH
                     40:
                     41: # only one argument is a special case, just output the name twice
                     42: case $# in
                     43:        0)
                     44:                echo "usage: lorder file ...";
                     45:                exit ;;
                     46:        1)
                     47:                echo $1 $1;
                     48:                exit ;;
                     49: esac
                     50:
                     51: # temporary files
                     52: R=/tmp/_reference_$$
                     53: S=/tmp/_symbol_$$
                     54:
                     55: # remove temporary files on HUP, INT, QUIT, PIPE, TERM
                     56: trap "rm -f $R $S; exit 1" 1 2 3 13 15
                     57:
                     58: # if the line ends in a colon, assume it's the first occurrence of a new
                     59: # object file.  Echo it twice, just to make sure it gets into the output.
                     60: #
                     61: # if the line has " T " or " D " it's a globally defined symbol, put it
                     62: # into the symbol file.
                     63: #
                     64: # if the line has " U " it's a globally undefined symbol, put it into
                     65: # the reference file.
                     66: for file in $* ; do
                     67: ( echo "" ; echo ${file}: ; nm -go $file ) | sed "
                     68:        /:$/ {
                     69:                s/://
                     70:                s/.*/& &/
                     71:                p
                     72:                d
                     73:        }
                     74:        / [TD] / {
                     75:                s/:.* [TD] / /
                     76:                w $S
                     77:                d
                     78:        }
                     79:        / U / {
                     80:                s/:.* U / /
                     81:                w $R
                     82:        }
                     83:        d
                     84: "
                     85: done
                     86:
                     87: # sort symbols and references on the first field (the symbol)
                     88: # join on that field, and print out the file names.
                     89: sort +1 $R -o $R
                     90: sort +1 $S -o $S
                     91: join -j 2 -o 1.1 2.1 $R $S
                     92: rm -f $R $S