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Annotation of researchv10dc/630/bin/mc68lorder, revision 1.1.1.1

1.1       root        1: #      COMMON LORDER (modified)
                      2: #
                      3: #ident "@(#)lorder:mc68/lorder.sh      1.1"
                      4: #
                      5: trap "rm -f /tmp/$$sym?ef; exit" 0 1 2 13 15
                      6: case $# in
                      7: 0)     echo usage: mc68lorder file ...
                      8:        exit ;;
                      9: 1)     case $1 in
                     10:        *.o)    set $1 $1
                     11:        esac
                     12: esac
                     13: #      The following sed script is commented here.
                     14: #      The egrep pipe insures that we only have lines
                     15: #      that contain file names and the external
                     16: #      declarations associated with each file.
                     17: #      The first two parts of the sed script put the pattern
                     18: #      (in this case the file name) into the hold space
                     19: #      and creates the "filename filename" lines and
                     20: #      writes them out. The first part is for .o files,
                     21: #      the second is for .o's in archives.
                     22: #      The next 3 sections of code are exactly alike but
                     23: #      they handle different external symbols, namely the
                     24: #      symbols that are defined in the text section, data section
                     25: #      or symbols that are referenced but not defined in this file.
                     26: #      A line containing the symbol (from the pattern space) and 
                     27: #      the file it is referenced in (from the hold space) is
                     28: #      put into the pattern space.
                     29: #      If its text or data it is written out to the symbol definition
                     30: #      (symdef) file, otherwise it was referenced but not declared
                     31: #      in this file so it is written out to the symbol referenced
                     32: #      (symref) file.
                     33: #
                     34: $DMD/bin/mc68nm -e $* | egrep "\\.o:|\\.o]:|\\|extern" |
                     35:        sed '
                     36:        /\.o:$/{
                     37:                s/://
                     38:                s/^.* //
                     39:                h
                     40:                s/.*/& &/
                     41:                p
                     42:                d
                     43:        }
                     44:        /\.o]:$/{
                     45:                s/]://
                     46:                s/^.*\[//
                     47:                h
                     48:                s/.*/& &/
                     49:                p
                     50:                d
                     51:        }
                     52:        /|\.text/{
                     53:                s/ *|.*//
                     54:                G
                     55:                s/\n/ /
                     56:                w '/tmp/$$symdef'
                     57:                d
                     58:        }
                     59:        /|\.data/{
                     60:                s/ *|.*//
                     61:                G
                     62:                s/\n/ /
                     63:                w '/tmp/$$symdef'
                     64:                d
                     65:        }
                     66:        s/ *|.*//
                     67:        G
                     68:        s/\n/ /
                     69:        w '/tmp/$$symref'
                     70:        d
                     71: '
                     72: sort /tmp/$$symdef -o /tmp/$$symdef
                     73: sort /tmp/$$symref -o /tmp/$$symref
                     74: join /tmp/$$symref /tmp/$$symdef | sed 's/[^ ]* *//'

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