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Annotation of src/usr.bin/lorder/lorder.sh, Revision 1.15

1.1       deraadt     1: #!/bin/sh -
1.15    ! jca         2: #      $OpenBSD: lorder.sh,v 1.14 2003/07/02 00:21:16 avsm 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.
1.13      millert    16: # 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    17: #    may be used to endorse or promote products derived from this software
                     18: #    without specific prior written permission.
                     19: #
                     20: # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21: # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22: # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23: # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24: # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25: # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26: # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27: # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28: # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29: # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30: # SUCH DAMAGE.
                     31: #
                     32: #      @(#)lorder.sh   8.1 (Berkeley) 6/6/93
                     33: #
                     34:
1.10      espie      35: # one argument can be optimized: put out the filename twice
1.1       deraadt    36: case $# in
                     37:        0)
                     38:                echo "usage: lorder file ...";
                     39:                exit ;;
                     40:        1)
                     41:                echo $1 $1;
                     42:                exit ;;
                     43: esac
                     44:
                     45: # temporary files
1.14      avsm       46: R=`mktemp /tmp/_referenceXXXXXXXXXX` || exit 1
                     47: S=`mktemp /tmp/_symbolXXXXXXXXXX` || {
1.12      pvalchev   48:        rm -f ${R}
                     49:        exit 1
                     50: }
1.1       deraadt    51:
                     52: # remove temporary files on HUP, INT, QUIT, PIPE, TERM
1.11      pvalchev   53: trap "rm -f $R $S; exit 0" 0
                     54: trap "rm -f $R $S; exit 1" 1 2 3 13 15
1.1       deraadt    55:
1.10      espie      56: # make sure files depend on themselves
                     57: for file in "$@"; do echo "$file $file" ; done
1.15    ! jca        58: # if the line has " T ", " D ", " G ", " R ",  it's a globally defined
1.10      espie      59: # symbol, put it into the symbol file.
1.1       deraadt    60: #
                     61: # if the line has " U " it's a globally undefined symbol, put it into
                     62: # the reference file.
1.9       d          63: ${NM:-nm} -go "$@" | sed "
1.10      espie      64:        / [TDGR] / {
                     65:                s/:.* [TDGR] / /
1.1       deraadt    66:                w $S
                     67:                d
                     68:        }
                     69:        / U / {
                     70:                s/:.* U / /
                     71:                w $R
                     72:        }
                     73:        d
                     74: "
                     75:
                     76: # sort symbols and references on the first field (the symbol)
1.10      espie      77: # join on that field, and print out the file names (dependencies).
1.15    ! jca        78: sort -k 2 -o $R $R
        !            79: sort -k 2 -o $S $S
        !            80: join -j 2 -o 1.1,2.1 $R $S
1.11      pvalchev   81: rm -f $R $S