gcc/config/print-sysroot-suffix.sh

   1 #! /bin/sh
   2 # Script to generate SYSROOT_SUFFIX_SPEC equivalent to MULTILIB_OSDIRNAMES
   3 # Arguments are MULTILIB_OSDIRNAMES, MULTILIB_OPTIONS and MULTILIB_MATCHES.
   4
   5 # Copyright (C) 2009-2014 Free Software Foundation, Inc.
   6
   7 # This file is part of GCC.
   8
   9 # GCC is free software; you can redistribute it and/or modify it under
  10 # the terms of the GNU General Public License as published by the Free
  11 # Software Foundation; either version 3, or (at your option) any later
  12 # version.
  13
  14 # GCC is distributed in the hope that it will be useful, but WITHOUT
  15 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17 # for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with GCC; see the file COPYING3.  If not see
  21 # <http://www.gnu.org/licenses/>.
  22
  23 # This shell script produces a header file fragment that defines
  24 # SYSROOT_SUFFIX_SPEC.  It assumes that the sysroots will have the same
  25 # structure and names used by the multilibs.
  26
  27 # Invocation:
  28 #   print-sysroot-suffix.sh \
  29 #          MULTILIB_OSDIRNAMES \
  30 #          MULTILIB_OPTIONS \
  31 #          MULTILIB_MATCHES \
  32 #      > t-sysroot-suffix.h
  33
  34 # The three options exactly correspond to the variables of the same
  35 # names defined in the tmake_file fragments.
  36
  37 # Example:
  38 #   sh ./gcc/config/print-sysroot-suffix.sh "a=A" "a b/c/d" ""
  39 # =>
  40 #   #undef SYSROOT_SUFFIX_SPEC
  41 #   #define SYSROOT_SUFFIX_SPEC "" \
  42 #   "%{a:" \
  43 #     "%{b:A/b/;" \
  44 #     "c:A/c/;" \
  45 #     "d:A/d/;" \
  46 #     ":A/};" \
  47 #   ":}"
  48
  49 # The script uses temporary subscripts in order to permit a recursive
  50 # algorithm without the use of functions.
  51
  52 set -e
  53
  54 dirnames="$1"
  55 options="$2"
  56 matches="$3"
  57
  58 cat > print-sysroot-suffix3.sh <<\EOF
  59 #! /bin/sh
  60 # Print all the multilib matches for this option
  61 result="$1"
  62 EOF
  63 for x in $matches; do
  64   l=`echo $x | sed -e 's/=.*$//' -e 's/?/=/g'`
  65   r=`echo $x | sed -e 's/^.*=//' -e 's/?/=/g'`
  66   echo "[ \"\$1\" = \"$l\" ] && result=\"\$result|$r\"" >> print-sysroot-suffix3.sh
  67 done
  68 echo 'echo $result' >> print-sysroot-suffix3.sh
  69 chmod +x print-sysroot-suffix3.sh
  70
  71 cat > print-sysroot-suffix2.sh <<\EOF
  72 #! /bin/sh
  73 # Recursive script to enumerate all multilib combinations, match against
  74 # multilib directories and output a spec string of the result.
  75 # Will fold identical trees.
  76
  77 padding="$1"
  78 optstring="$2"
  79 shift 2
  80 n="\" \\
  81 $padding\""
  82 if [ $# = 0 ]; then
  83 EOF
  84
  85 pat=
  86 for x in $dirnames; do
  87   p=`echo $x | sed -e 's,=!,/$=/,'`
  88   pat="$pat -e 's=^//$p='"
  89 done
  90 echo '  optstring=`echo "/$optstring" | sed '"$pat\`" >> print-sysroot-suffix2.sh
  91 cat >> print-sysroot-suffix2.sh <<\EOF
  92   case $optstring in
  93   //*)
  94     ;;
  95   *)
  96     echo "$optstring"
  97     ;;
  98   esac
  99 else
 100   thisopt="$1"
 101   shift
 102   bit=
 103   lastcond=
 104   result=
 105   for x in `echo "$thisopt" | sed -e 's,/, ,g'`; do
 106     case $x in
 107 EOF
 108 for x in `echo "$options" | sed -e 's,/, ,g'`; do
 109   match=`./print-sysroot-suffix3.sh "$x"`
 110   echo "$x) optmatch=\"$match\" ;;" >> print-sysroot-suffix2.sh
 111 done
 112 cat >> print-sysroot-suffix2.sh <<\EOF
 113     esac
 114     bit=`"$0" "$padding  " "$optstring$x/" "$@"`
 115     if [ -z "$lastopt" ]; then
 116       lastopt="$optmatch"
 117     else
 118       if [ "$lastbit" = "$bit" ]; then
 119         lastopt="$lastopt|$optmatch"
 120       else
 121         result="$result$lastopt:$lastbit;$n"
 122         lastopt="$optmatch"
 123       fi
 124     fi
 125     lastbit="$bit"
 126   done
 127   bit=`"$0" "$padding  " "$optstring" "$@"`
 128   if [ "$bit" = "$lastbit" ]; then
 129     if [ -z "$result" ]; then
 130       echo "$bit"
 131     else
 132       echo "$n%{$result:$bit}"
 133     fi
 134   else
 135     echo "$n%{$result$lastopt:$lastbit;$n:$bit}"
 136   fi
 137 fi
 138 EOF
 139
 140 chmod +x ./print-sysroot-suffix2.sh
 141 result=`./print-sysroot-suffix2.sh "" "/" $options`
 142 echo "#undef SYSROOT_SUFFIX_SPEC"
 143 echo "#define SYSROOT_SUFFIX_SPEC \"$result\""
 144 rm print-sysroot-suffix2.sh
 145 rm print-sysroot-suffix3.sh