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Annotation of src/usr.bin/lorder/lorder.sh, Revision 1.12

1.1       deraadt     1: #!/bin/sh -
1.12    ! pvalchev    2: #      $OpenBSD: lorder.sh,v 1.11 2001/06/29 01:33:23 pvalchev Exp $
1.10      espie       3: #      $NetBSD: lorder.sh.gnm,v 1.3 1995/12/20 04:45:11 cgd Exp $
1.1       deraadt     4: #
                      5: # Copyright (c) 1990, 1993
                      6: #      The Regents of the University of California.  All rights reserved.
                      7: #
                      8: # Redistribution and use in source and binary forms, with or without
                      9: # modification, are permitted provided that the following conditions
                     10: # are met:
                     11: # 1. Redistributions of source code must retain the above copyright
                     12: #    notice, this list of conditions and the following disclaimer.
                     13: # 2. Redistributions in binary form must reproduce the above copyright
                     14: #    notice, this list of conditions and the following disclaimer in the
                     15: #    documentation and/or other materials provided with the distribution.
                     16: # 3. All advertising materials mentioning features or use of this software
                     17: #    must display the following acknowledgement:
                     18: #      This product includes software developed by the University of
                     19: #      California, Berkeley and its contributors.
                     20: # 4. Neither the name of the University nor the names of its contributors
                     21: #    may be used to endorse or promote products derived from this software
                     22: #    without specific prior written permission.
                     23: #
                     24: # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27: # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34: # SUCH DAMAGE.
                     35: #
                     36: #      @(#)lorder.sh   8.1 (Berkeley) 6/6/93
                     37: #
                     38:
1.10      espie      39: # one argument can be optimized: put out the filename twice
1.1       deraadt    40: case $# in
                     41:        0)
                     42:                echo "usage: lorder file ...";
                     43:                exit ;;
                     44:        1)
                     45:                echo $1 $1;
                     46:                exit ;;
                     47: esac
                     48:
                     49: # temporary files
1.11      pvalchev   50: R=`mktemp /tmp/_referenceXXXXXX` || exit 1
1.12    ! pvalchev   51: S=`mktemp /tmp/_symbolXXXXXX` || {
        !            52:        rm -f ${R}
        !            53:        exit 1
        !            54: }
1.1       deraadt    55:
                     56: # remove temporary files on HUP, INT, QUIT, PIPE, TERM
1.11      pvalchev   57: trap "rm -f $R $S; exit 0" 0
                     58: trap "rm -f $R $S; exit 1" 1 2 3 13 15
1.1       deraadt    59:
1.10      espie      60: # make sure files depend on themselves
                     61: for file in "$@"; do echo "$file $file" ; done
                     62: # if the line has " T ", " D ", " G ", " R ",  it's a globally defined
                     63: # symbol, put it into the symbol file.
1.1       deraadt    64: #
                     65: # if the line has " U " it's a globally undefined symbol, put it into
                     66: # the reference file.
1.9       d          67: ${NM:-nm} -go "$@" | sed "
1.10      espie      68:        / [TDGR] / {
                     69:                s/:.* [TDGR] / /
1.1       deraadt    70:                w $S
                     71:                d
                     72:        }
                     73:        / U / {
                     74:                s/:.* U / /
                     75:                w $R
                     76:        }
                     77:        d
                     78: "
                     79:
                     80: # sort symbols and references on the first field (the symbol)
1.10      espie      81: # join on that field, and print out the file names (dependencies).
1.1       deraadt    82: sort +1 $R -o $R
                     83: sort +1 $S -o $S
                     84: join -j 2 -o 1.1 2.1 $R $S
1.11      pvalchev   85: rm -f $R $S