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#! /bin/sh
# Script to generate SYSROOT_SUFFIX_SPEC equivalent to MULTILIB_OSDIRNAMES
# Arguments are MULTILIB_OSDIRNAMES, MULTILIB_OPTIONS, MULTILIB_MATCHES,
# and MULTILIB_REUSE.
# Copyright (C) 2009-2017 Free Software Foundation, Inc.
# This file is part of GCC.
# GCC is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
# GCC is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# This shell script produces a header file fragment that defines
# SYSROOT_SUFFIX_SPEC. It assumes that the sysroots will have the same
# structure and names used by the multilibs.
# Invocation:
# print-sysroot-suffix.sh \
# MULTILIB_OSDIRNAMES \
# MULTILIB_OPTIONS \
# MULTILIB_MATCHES \
# MULTILIB_REUSE
# > t-sysroot-suffix.h
# The four options exactly correspond to the variables of the same
# names defined in the t-sysroot-suffix tmake_file fragment.
# Example:
# sh ./gcc/config/print-sysroot-suffix.sh "a=A" "a b/c/d" ""
# =>
# #undef SYSROOT_SUFFIX_SPEC
# #define SYSROOT_SUFFIX_SPEC "" \
# "%{a:" \
# "%{b:A/b/;" \
# "c:A/c/;" \
# "d:A/d/;" \
# ":A/};" \
# ":}"
# The script uses temporary subscripts in order to permit a recursive
# algorithm without the use of functions.
set -e
dirnames="$1"
options="$2"
matches="$3"
reuse="$4"
cat > print-sysroot-suffix3.sh <<\EOF
#! /bin/sh
# Print all the multilib matches for this option
result="$1"
EOF
for x in $matches; do
l=`echo $x | sed -e 's/=.*$//' -e 's/?/=/g'`
r=`echo $x | sed -e 's/^.*=//' -e 's/?/=/g'`
echo "[ \"\$1\" = \"$l\" ] && result=\"\$result|$r\"" >> print-sysroot-suffix3.sh
done
echo 'echo $result' >> print-sysroot-suffix3.sh
chmod +x print-sysroot-suffix3.sh
cat > print-sysroot-suffix2.sh <<\EOF
#! /bin/sh
# Recursive script to enumerate all multilib combinations, match against
# multilib directories and output a spec string of the result.
# Will fold identical trees.
padding="$1"
optstring="$2"
shift 2
n="\" \\
$padding\""
if [ $# = 0 ]; then
case $optstring in
EOF
for x in $reuse; do
l=`echo $x | sed -e 's/=.*$//' -e 's/\./=/g'`
r=`echo $x | sed -e 's/^.*=//' -e 's/\./=/g'`
echo "/$r/) optstring=\"/$l/\" ;;" >> print-sysroot-suffix2.sh
done
echo " esac" >> print-sysroot-suffix2.sh
pat=
for x in $dirnames; do
p=`echo $x | sed -e 's,=!,/$=/,'`
pat="$pat -e 's=^//$p='"
done
echo ' optstring=`echo "/$optstring" | sed '"$pat\`" >> print-sysroot-suffix2.sh
cat >> print-sysroot-suffix2.sh <<\EOF
case $optstring in
//*)
;;
*)
echo "$optstring"
;;
esac
else
thisopt="$1"
shift
bit=
lastcond=
result=
for x in `echo "$thisopt" | sed -e 's,/, ,g'`; do
case $x in
EOF
for x in `echo "$options" | sed -e 's,/, ,g'`; do
match=`./print-sysroot-suffix3.sh "$x"`
echo "$x) optmatch=\"$match\" ;;" >> print-sysroot-suffix2.sh
done
cat >> print-sysroot-suffix2.sh <<\EOF
esac
bit=`"$0" "$padding " "$optstring$x/" "$@"`
if [ -z "$lastopt" ]; then
lastopt="$optmatch"
else
if [ "$lastbit" = "$bit" ]; then
lastopt="$lastopt|$optmatch"
else
result="$result$lastopt:$lastbit;$n"
lastopt="$optmatch"
fi
fi
lastbit="$bit"
done
bit=`"$0" "$padding " "$optstring" "$@"`
if [ "$bit" = "$lastbit" ]; then
if [ -z "$result" ]; then
echo "$bit"
else
echo "$n%{$result:$bit}"
fi
else
echo "$n%{$result$lastopt:$lastbit;$n:$bit}"
fi
fi
EOF
chmod +x ./print-sysroot-suffix2.sh
result=`./print-sysroot-suffix2.sh "" "/" $options`
echo "#undef SYSROOT_SUFFIX_SPEC"
echo "#define SYSROOT_SUFFIX_SPEC \"$result\""
rm print-sysroot-suffix2.sh
rm print-sysroot-suffix3.sh
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