tools/host-mkdep/host-mkdep.in

   1 #!@BSHELL@ -
   2 #
   3 #       $NetBSD: host-mkdep.in,v 1.31 2015/05/12 00:04:34 christos 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         [ "$option" = "$1" -o -z "$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:" $0';;
  85                 -p)     NEWEXT=;;
  86                 -q)     QUIET=true;;
  87                 -[iv])  ;;
  88
  89                 -[fPs]) # Options with arguments
  90                         [ -z "$optarg" ] && {
  91                                 [ $# = 1 ] && usage
  92                                 shift
  93                                 optarg="$1"
  94                         }
  95                         case "-$option" in
  96                         -f)     OUTFILE="$optarg";;
  97                         -P)     PREFIX="$optarg";;
  98                         -s)     NEWEXT="$optarg";;
  99                         esac
 100                         optarg=
 101                         ;;
 102
 103                 --)     [ -z "$optarg" ] && shift
 104                         break 2
 105                         ;;
 106
 107                 *)      $MERGE && usage
 108                         break 2;
 109                         ;;
 110                 esac
 111                 [ -n "$optarg" ]
 112         do
 113                 option="$optarg"
 114         done
 115         shift
 116 done
 117
 118 [ $# = 0 ] && usage
 119
 120 if $MERGE; then
 121         SRCS="$*"
 122 else
 123         #
 124         # Process argument list.
 125         # This is tricky, because arguments may contain spaces and other
 126         # escapes characters.  The argument list is used like a tail queue.
 127         # $cppargs has one x for each unprocessed argument, so when an
 128         # argument is processed, it is shifted and the corresponding number
 129         # of x's is removed.  The advantage to counting is that suffix removal
 130         # works without fork.
 131         #
 132         cppargs=
 133         for arg; do
 134                 cppargs="x$cppargs"
 135         done
 136         while [ -n "$cppargs" ]; do
 137                 case "$1" in
 138                 -L)                     # takes an arg, but ignored
 139                                 shift 2
 140                                 cppargs=${cppargs%xx}
 141                                 ;;
 142
 143                 -c|-[lLMOW]*)           # takes no extra args
 144                                 shift
 145                                 cppargs=${cppargs%x}
 146                                 ;;
 147
 148                 -[IDU]*)
 149                                 set -- "$@" "$1"
 150                                 shift
 151                                 cppargs=${cppargs%x}
 152                                 ;;
 153
 154                 -[IDU]|-include|-isystem|-isysroot)
 155                                 set -- "$@" "$1" "$2"
 156                                 shift 2
 157                                 cppargs=${cppargs%xx}
 158                                 ;;
 159
 160                 -isystem-cxx|-cxx-isystem)
 161                                 set -- "$@" "-isystem" "$2"
 162                                 shift 2
 163                                 cppargs=${cppargs%xx}
 164                                 ;;
 165                 -std=*)
 166                                 set -- "$@" "$1"
 167                                 shift
 168                                 cppargs=${cppargs%x}
 169                                 ;;
 170
 171                 -no-cpp-precomp)        # This is a Darwin-specific option.
 172                                 set -- "$@" "$1"
 173                                 shift
 174                                 cppargs=${cppargs%x}
 175                                 ;;
 176
 177                 -nostdinc*)     # This is a gcc/g++ ism; ignore if not gcc/g++
 178                                 case "@CFLAGS@" in
 179                                 *-O2*)  # Autoconf puts -O2 when gcc only
 180                                         set -- "$@" "$1"
 181                                         ;;
 182                                 esac
 183                                 shift
 184                                 cppargs=${cppargs%x}
 185                                 ;;
 186                 --sysroot*)
 187                                 shift
 188                                 ;;
 189                 -[iv])
 190                                 shift
 191                                 ;;
 192                 -*)
 193                                 echo "$0: Unknown option: $1" 1>&2 # all other -options
 194                                 exit 1
 195                                 ;;
 196
 197                 *)
 198                                 SRCS="$SRCS $1" # source file
 199                                 shift
 200                                 cppargs=${cppargs%x}
 201                                 ;;
 202                 esac
 203         done
 204 fi
 205
 206 [ -z "$SRCS" ] && usage
 207
 208 TMP=/tmp/mkdep$$
 209 rm -f $TMP
 210
 211 trap 'rm -f $TMP; exit 1' 1 2 3 13 15
 212
 213 if $MERGE; then
 214         for f in $SRCS; do
 215                 if [ ! -f "$f" ]; then
 216                         if ! $QUIET; then echo "$0: Ignoring $f" >&2; fi
 217                         continue
 218                 fi
 219                 while IFS=':'; read target dependents; do
 220                         IFS=
 221                         t1="${target#* }"
 222                         file="${target%.o}"
 223                         if [ "$t1" = "$target" -a "$file" != "$target" ]; then
 224                                 set_objlist $file
 225                                 target="$objlist"
 226                         fi
 227                         echo "$target:$dependents"
 228                         if "$OPTIONAL"; then
 229                                 echo ".OPTIONAL:$dependents"
 230                         fi
 231                 done <$f
 232         done >$TMP
 233 else
 234         for f in $SRCS; do
 235                 file=${f##*/}
 236                 file=${file%.*}
 237                 set_objlist $file
 238
 239                 ( (@CPP@ "$@" $f; echo $? >&3) | @AWK@ '
 240                         /^#/ {
 241                                 # Be as tolerant as possible.
 242                                 sub(/^#(line)? [ 0-9]*\"?/, "")
 243                                 sub(/^#(pragma).*/, "")
 244                                 sub(/^<.*/, "")
 245                                 sub(/\".*$/, "")
 246                                 sub(/^\.\//, "")
 247                                 sub(/ [ 0-9]*$/, "")
 248
 249                                 if ($0 in seenfiles) next
 250                                 if ($0 ~ /y.tab.c/) next
 251
 252                                 seenfiles[$0] = 1
 253                                 print "'"$objlist"'" ": " $0
 254                                 '"$AWK_OPTIONAL"'
 255                         }
 256                 ' >> $TMP) 3>&1 | (read a; exit $a)
 257         done
 258 fi
 259
 260 if $APPEND; then
 261         cat $TMP >> $OUTFILE
 262 else
 263         cat $TMP > $OUTFILE
 264 fi
 265
 266 rm -f $TMP
 267 exit 0