tools/host-mkdep/host-mkdep.in

   1 #!@BSHELL@ -
   2 #
   3 #       $NetBSD: host-mkdep.in,v 1.21 2012/08/26 22:37:19 jmmv Exp $
   4 #
   5 # Copyright (c) 1991, 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 #       @(#)mkdep.old.compiler  8.1 (Berkeley) 6/6/93
  37 #
  38
  39 APPEND=false
  40 MERGE=false
  41 OPTIONAL=false
  42 AWK_OPTIONAL=
  43 QUIET=false
  44 CPPFLAGS=
  45 NEWEXT=.o
  46 PREFIX=
  47 OUTFILE=.depend
  48 SRCS=
  49
  50 usage()
  51 {
  52         echo "Usage: $0 [-adopq] [-s .suffixes] [-f .depend] -- [flags] file ..." >&2
  53         exit 1
  54 }
  55
  56 set_objlist()
  57 {
  58         if [ -n "$NEWEXT" ]; then
  59                 oifs="$IFS"
  60                 IFS=" ,"
  61                 set -- $NEWEXT
  62                 IFS="$oifs"
  63                 objlist=
  64                 for suf in "$@"; do
  65                         objlist="$objlist${objlist:+ }$PREFIX$file$suf"
  66                 done
  67         else
  68                 objlist="$PREFIX$file"
  69         fi
  70 }
  71
  72 # A getopt compatible command line parser in shell comands.
  73 # (don't trust the shell builtin getopts to be in a known state on error)
  74 while [ $# -gt 0 ]; do
  75         option="${1#-}"
  76         [ "x$option" = "x$1" -o -z "$option" ] && break
  77         while
  78                 optarg="${option#?}"
  79                 option="${option%$optarg}"
  80
  81                 case "-$option" in
  82                 -a)     APPEND=true;;
  83                 -d)     MERGE=true;;
  84                 -o)     OPTIONAL=true; AWK_OPTIONAL='print ".OPTIONAL:" $0';;
  85                 -p)     NEWEXT=;;
  86                 -q)     QUIET=true;;
  87
  88                 -[fPs]) # Options with arguments
  89                         [ -z "$optarg" ] && {
  90                                 [ $# = 1 ] && usage
  91                                 shift
  92                                 optarg="$1"
  93                         }
  94                         case "-$option" in
  95                         -f)     OUTFILE="$optarg";;
  96                         -P)     PREFIX="$optarg";;
  97                         -s)     NEWEXT="$optarg";;
  98                         esac
  99                         optarg=
 100                         ;;
 101
 102                 --)     [ -z "$optarg" ] && shift
 103                         break 2
 104                         ;;
 105
 106                 *)      $MERGE && usage
 107                         break 2;
 108                         ;;
 109                 esac
 110                 [ -n "$optarg" ]
 111         do
 112                 option="$optarg"
 113         done
 114         shift
 115 done
 116
 117 [ $# = 0 ] && usage
 118
 119 if $MERGE; then
 120         SRCS="$*"
 121 else
 122         #
 123         # Process argument list.
 124         # This is tricky, because arguments may contain spaces and other
 125         # escapes characters.  The argument list is used like a tail queue.
 126         # $cppargs has one x for each unprocessed argument, so when an
 127         # argument is processed, it is shifted and the corresponding number
 128         # of x's is removed.  The advantage to counting is that suffix removal
 129         # works without fork.
 130         #
 131         cppargs=
 132         for arg; do
 133                 cppargs="x$cppargs"
 134         done
 135         while [ -n "$cppargs" ]; do
 136                 case "$1" in
 137                 -L)                     # takes an arg, but ignored
 138                                 shift 2
 139                                 cppargs=${cppargs%xx}
 140                                 ;;
 141
 142                 -c|-[lLMOW]*)           # takes no extra args
 143                                 shift
 144                                 cppargs=${cppargs%x}
 145                                 ;;
 146
 147                 -[IDU]*)
 148                                 set -- "$@" "$1"
 149                                 shift
 150                                 cppargs=${cppargs%x}
 151                                 ;;
 152
 153                 -[IDU]|-include|-isystem|-isysroot)
 154                                 set -- "$@" "$1" "$2"
 155                                 shift 2
 156                                 cppargs=${cppargs%xx}
 157                                 ;;
 158
 159                 -isystem-cxx|-cxx-isystem)
 160                                 set -- "$@" "-isystem" "$2"
 161                                 shift 2
 162                                 cppargs=${cppargs%xx}
 163                                 ;;
 164
 165                 -no-cpp-precomp)        # This is a Darwin-specific option.
 166                                 set -- "$@" "$1"
 167                                 shift
 168                                 cppargs=${cppargs%x}
 169                                 ;;
 170
 171                 -nostdinc*)     # This is a gcc/g++ ism; ignore if not gcc/g++
 172                                 case "@CFLAGS@" in
 173                                 *-O2*)  # Autoconf puts -O2 when gcc only
 174                                         set -- "$@" "$1"
 175                                         ;;
 176                                 esac
 177                                 shift
 178                                 cppargs=${cppargs%x}
 179                                 ;;
 180
 181                 -*)
 182                                 echo "$0: Unknown option: $1" 1>&2 # all other -options
 183                                 exit 1
 184                                 ;;
 185
 186                 *)
 187                                 SRCS="$SRCS $1" # source file
 188                                 shift
 189                                 cppargs=${cppargs%x}
 190                                 ;;
 191                 esac
 192         done
 193 fi
 194
 195 [ -z "$SRCS" ] && usage
 196
 197 TMP=/tmp/mkdep$$
 198 rm -f $TMP
 199
 200 trap 'rm -f $TMP; exit 1' 1 2 3 13 15
 201
 202 if $MERGE; then
 203         for f in $SRCS; do
 204                 if [ ! -f "$f" ]; then
 205                         if ! $QUIET; then echo "$0: Ignoring $f" >&2; fi
 206                         continue
 207                 fi
 208                 while IFS=':'; read target dependents; do
 209                         IFS=
 210                         t1="${target#* }"
 211                         file="${target%.o}"
 212                         if [ "$t1" = "$target" -a "$file" != "$target" ]; then
 213                                 set_objlist $file
 214                                 target="$objlist"
 215                         fi
 216                         echo "$target:$dependents"
 217                         if "$OPTIONAL"; then
 218                                 echo ".OPTIONAL:$dependents"
 219                         fi
 220                 done <$f
 221         done >$TMP
 222 else
 223         for f in $SRCS; do
 224                 file=${f##*/}
 225                 file=${file%.*}
 226                 set_objlist $file
 227
 228                 @CPP@ "$@" $f | @AWK@ '
 229                         /^#/ {
 230                                 # Be as tolerant as possible.
 231                                 sub(/^#(line)? [ 0-9]*\"?/, "")
 232                                 sub(/^#(pragma).*/, "")
 233                                 sub(/^<.*/, "")
 234                                 sub(/\".*$/, "")
 235                                 sub(/ [ 0-9]*$/, "")
 236
 237                                 if ($0 in seenfiles) next
 238                                 if ($0 ~ /y.tab.c/) next
 239
 240                                 seenfiles[$0] = 1
 241                                 print "'"$objlist"'" ": " $0
 242                                 '"$AWK_OPTIONAL"'
 243                         }
 244                 ' >> $TMP
 245         done
 246 fi
 247
 248 if $APPEND; then
 249         cat $TMP >> $OUTFILE
 250 else
 251         cat $TMP > $OUTFILE
 252 fi
 253
 254 rm -f $TMP
 255 exit 0