#!/bin/sh # Copyright (C) 2006-2022 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 # . # This script takes the following arguments: # # - the target sysroot # - the value of $(MULTILIB_MATCHES) # - the value of $(MULTILIB_OPTIONS) # # It uses these arguments to construct a definition of SYSROOT_SUFFIX_SPEC, # which it prints to the standard output. For each multilib directory FOO, # the script checks whether $sysroot has a subdirectory FOO, and if so will # use /FOO for all compatible command-line options. It will not add a # suffix for /FOO's options otherwise. These suffixes are concatenated, # with one subspec for each space-separated entry in $(MULTILIB_OPTIONS). set -e sysroot=$1 matches=$2 options=$3 # For each multilib option OPT, add to $substs a sed command of the # form "-e 's/OPT/OPT/'". substs="" for option in `echo "$options" | tr '/' ' '` do substs="$substs -e 's/$option/$option/g'" done # For each ALIAS=CANONICAL entry in $MULTILIB_MATCHES, look for sed # arguments in $substs of the form "-e 's/CANONICAL/.../'". Replace # such entries with "-e 's/CANONICAL/ALIAS|.../'". Both the ALIAS and # CANONICAL parts of $MULTILIB_MATCHES use '?' to stand for '='. # # After this loop, a command of the form "echo FOO | eval sed $substs" # will replace a canonical option FOO with a %{...}-style spec pattern. for match in $matches do canonical=`echo "$match" | sed -e 's/=.*//' -e 's/?/=/g'` alias=`echo "$match" | sed -e 's/.*=//' -e 's/?/=/g'` substs=`echo "$substs" | sed -e "s,s/$canonical/,&$alias|,"` done # Build up the final SYSROOT_SUFFIX_SPEC in $spec. spec= for combo in $options do # See which option alternatives in $combo have their own sysroot # directory. Create a subspec of the form "%{PAT1:/DIR1;...;PATn:DIRn}" # from each such option OPTi, where DIRi is the directory associated # with OPTi and PATi is the result of passing OPTi through $substs. subspec= for option in `echo "$combo" | tr '/' ' '` do dir=`echo "$option" | sed 's/cpu=//'` if test -d "$sysroot/$dir"; then test -z "$subspec" || subspec="$subspec;" subspec="$subspec"`echo "$option" | eval sed $substs`":/$dir" fi done # Concatenate all the subspecs. test -z "$subspec" || spec="$spec%{$subspec}" done if test -n "$spec"; then echo "#undef SYSROOT_SUFFIX_SPEC" echo "#define SYSROOT_SUFFIX_SPEC \"$spec\"" fi