tools/cxref/cxref-cc

   1 #!/bin/sh
   2
   3 # $Header$
   4 #
   5 # C Cross Referencing & Documentation tool. Version 1.5d.
   6 #
   7 # C compiler replacement to compile program and cross reference it.
   8 #
   9 # Written by Andrew M. Bishop
  10 #
  11 # This file Copyright 1997,98,2002 Andrew M. Bishop
  12 # It may be distributed under the GNU Public License, version 2, or
  13 # any higher version.  See section COPYING of the GNU Public license
  14 # for conditions under which this file may be redistributed.
  15 #
  16
  17 # Print a usage statement.
  18
  19 if [ $# = 0 ]; then
  20
  21     echo 'Usage: cxref-cc filename [CC-arguments]' 1>&2
  22     echo '' 1>&2
  23     echo 'filename        : The name of the file to compile and cross reference.' 1>&2
  24     echo 'CC-arguments    : Any number of arguments to the C compiler.' 1>&2
  25     echo '' 1>&2
  26     echo 'The C compiler is called first, and if this succeeds then cxref is called.' 1>&2
  27     echo 'You require a .cxref file to contain the cxref options.' 1>&2
  28     exit 1
  29
  30 fi
  31
  32 # Check for a .cxref file.
  33
  34 if [ ! -r .cxref ]; then
  35
  36     echo 'cxref-cc: Error a .cxref file is required to use cxref-cc.' 1>&2
  37     echo '          If you do not need any arguments an empty file will work.' 1>&2
  38     exit 1
  39
  40 fi
  41
  42 # The variables that we are going to use.
  43
  44 if [ "x$CXREFCC" = x ]; then
  45     if [ "x$CC" = x ]; then
  46         CXREFCC=gcc
  47     else
  48         CXREFCC=`echo $CC | cut -d' ' -f1`
  49         if [ `basename $CXREFCC` = cxref-cc ]; then
  50             echo 'cxref-cc: Warning the CC variable points to cxref-cc, set CXREFCC instead.' 1>&2
  51             CXREFCC=gcc
  52         fi
  53     fi
  54 fi
  55
  56 CXREF=cxref
  57
  58 FILE=
  59 FILESTDIN=
  60
  61 CXREFFLAGS=
  62
  63 # Call the C compiler
  64
  65 $CXREFCC "$@"
  66
  67 if [ ! $? = 0 ]; then
  68
  69     echo 'cxref-cc: The C compiler failed with an error status.' 1>&2
  70     exit 1
  71
  72 fi
  73
  74 # Loop over the arguments and sort them out.
  75
  76 # Note: Need to be careful because "-DFOO=BAR BAR" loses its quotes on parameter
  77 #       expansion, but must be passed to cxref as a single word.  We need to use
  78 #       a word separator since there are no arrays, so we use ^M.
  79
  80 while [ ! $# = 0 ]; do
  81
  82     case $1 in
  83
  84         # The arguments to keep
  85
  86         -D)
  87             CXREFFLAGS="$CXREFFLAGS
  88 $1
  89 $2"; shift;;
  90         -D*)
  91             CXREFFLAGS="$CXREFFLAGS
  92 $1";;
  93
  94         -U)
  95             CXREFFLAGS="$CXREFFLAGS
  96 $1
  97 $2"; shift;;
  98         -U*)
  99             CXREFFLAGS="$CXREFFLAGS
 100 $1";;
 101
 102         -I)
 103             CXREFFLAGS="$CXREFFLAGS
 104 $1
 105 $2"; shift;;
 106         -I*)
 107             CXREFFLAGS="$CXREFFLAGS
 108 $1";;
 109
 110         # The filename (perhaps)
 111
 112         *.c)
 113             if [ "x$FILE" = x -a -r $1 ]; then
 114                 FILE="
 115 $1";
 116             fi;;
 117
 118         -)
 119             FILESTDIN=yes;;
 120
 121         # The arguments to throw away
 122
 123         *)
 124             ;;
 125
 126     esac
 127     shift
 128
 129 done
 130
 131 # Check that a real file was specified
 132
 133 if [ "x$FILE" = x ]; then
 134
 135     if [ "x$FILESTDIN" = xyes ]; then
 136         echo 'cxref-cc: Cannot use stdin "-" as a filename with cxref-cc' 1>&2
 137     else
 138         echo 'cxref-cc: Warning no file specified on the command line' 1>&2
 139     fi
 140     exit 0
 141
 142 fi
 143
 144 # Call cxref
 145
 146 # Note: We are using ^M as the word separator, as detailed above.
 147
 148 IFS=
 149 export IFS
 150
 151 $CXREF$FILE$CXREFFLAGS
 152
 153 if [ ! $? = 0 ]; then
 154
 155     echo 'cxref-cc: Cxref exited with error status' 1>&2
 156     exit 1
 157
 158 fi