#!/bin/sh
# Generates multilib.h.
-# Copyright (C) 1994, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
+# Copyright (C) 1994, 1995, 1996, 1997, 1999, 2002, 2007
+# Free Software Foundation, Inc.
-#This file is part of GNU CC.
+#This file is part of GCC.
-#GNU CC 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 2, or (at your option)
-#any later version.
+#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.
-#GNU CC 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.
+#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 GNU CC; see the file COPYING. If not, write to
-#the Free Software Foundation, 59 Temple Place - Suite 330,
-#Boston, MA 02111-1307, USA.
+#along with GCC; see the file COPYING3. If not see
+#<http://www.gnu.org/licenses/>.
# This shell script produces a header file which the gcc driver
# program uses to pick which library to use based on the machine
# the compiler similar to exceptions. The difference being that exclusions
# allow matching default options that genmultilib does not know about and
# is done at runtime as opposed to being sorted out at compile time.
-# Each element in the list is a seperate exclusion rule. Each rule is
-# a list of options (sans preceding '-') seperated by a '/'. The options
+# Each element in the list is a separate exclusion rule. Each rule is
+# a list of options (sans preceding '-') separated by a '/'. The options
# on the rule are grouped as an AND operation, and all options much match
# for the rule to exclude a set. Options can be preceded with a '!' to
# match a logical NOT.
+# The optional seventh argument is a list of OS subdirectory names.
+# The format is either the same as of the second argument, or a set of
+# mappings. When it is the same as the second argument, it describes
+# the multilib directories using OS conventions, rather than GCC
+# conventions. When it is a set of mappings of the form gccdir=osdir,
+# the left side gives the GCC convention and the right gives the
+# equivalent OS defined location. If the osdir part begins with a !,
+# the os directory names are used exclusively. Use the mapping when
+# there is no one-to-one equivalence between GCC levels and the OS.
+
+# The last option should be "yes" if multilibs are enabled. If it is not
+# "yes", all GCC multilib dir names will be ".".
+
# The output looks like
# #define MULTILIB_MATCHES "\
# SUBDIRECTORY OPTIONS;\
# Here is an example (this is from the actual sparc64 case):
# genmultilib 'm64/m32 mno-app-regs|mcmodel=medany' '64 32 alt'
# 'mcmodel?medany=mcmodel?medmid' 'm32/mno-app-regs* m32/mcmodel=*'
-# 'm32/!m64/mno-app-regs m32/!m64/mcmodel=medany'
+# '' 'm32/!m64/mno-app-regs m32/!m64/mcmodel=medany'
+# '../lib64 ../lib32 alt' yes
# This produces:
# ". !m64 !m32 !mno-app-regs !mcmodel=medany;",
-# "64 m64 !m32 !mno-app-regs !mcmodel=medany;",
-# "32 !m64 m32 !mno-app-regs !mcmodel=medany;",
+# "64:../lib64 m64 !m32 !mno-app-regs !mcmodel=medany;",
+# "32:../lib32 !m64 m32 !mno-app-regs !mcmodel=medany;",
# "alt !m64 !m32 mno-app-regs mcmodel=medany;",
# "alt !m64 !m32 mno-app-regs !mcmodel=medany;",
# "alt !m64 !m32 !mno-app-regs mcmodel=medany;",
-# "64/alt m64 !m32 mno-app-regs mcmodel=medany;",
-# "64/alt m64 !m32 mno-app-regs !mcmodel=medany;",
-# "64/alt m64 !m32 !mno-app-regs mcmodel=medany;",
+# "64/alt:../lib64/alt m64 !m32 mno-app-regs mcmodel=medany;",
+# "64/alt:../lib64/alt m64 !m32 mno-app-regs !mcmodel=medany;",
+# "64/alt:../lib64/alt m64 !m32 !mno-app-regs mcmodel=medany;",
#
# The effect is that `gcc -mno-app-regs' (for example) will append "alt"
# to the directory name when searching for libraries or startup files and
exceptions=$4
extra=$5
exclusions=$6
+osdirnames=$7
+enable_multilib=$8
+
+echo "static const char *const multilib_raw[] = {"
-echo "static char *multilib_raw[] = {"
+mkdir tmpmultilib.$$ || exit 1
+# Use cd ./foo to avoid CDPATH output.
+cd ./tmpmultilib.$$ || exit 1
# What we want to do is select all combinations of the sets in
# options. Each combination which includes a set of mutually
combinations=`initial=/ ./tmpmultilib ${options}`
-rm -f tmpmultilib
-
# If there exceptions, weed them out now
if [ -n "${exceptions}" ]; then
- rm -f tmpmultilib2
cat >tmpmultilib2 <<\EOF
#!/bin/sh
# This recursive script weeds out any combination of multilib
EOF
chmod +x tmpmultilib2
combinations=`./tmpmultilib2 ${combinations}`
- rm -f ./tmpmultilib2
fi
# Construct a sed pattern which will convert option names to directory
done
fi
+# Construct a sed pattern which will convert option names to OS directory
+# names.
+toosdirnames=
+defaultosdirname=
+if [ -n "${osdirnames}" ]; then
+ set x ${osdirnames}
+ shift
+ while [ $# != 0 ] ; do
+ case "$1" in
+ .=*)
+ defaultosdirname=`echo $1 | sed 's|^.=|:|'`
+ shift
+ ;;
+ *=*)
+ patt=`echo $1 | sed -e 's|=|/$=/|'`
+ toosdirnames="${toosdirnames} -e s=^/${patt}/="
+ shift
+ ;;
+ *)
+ break
+ ;;
+ esac
+ done
+
+ if [ $# != 0 ]; then
+ for set in ${options}; do
+ for opts in `echo ${set} | sed -e 's|/| |'g`; do
+ patt="/"
+ for opt in `echo ${opts} | sed -e 's_|_ _'g`; do
+ if [ "$1" != "${opt}" ]; then
+ toosdirnames="${toosdirnames} -e s|/${opt}/|/${1}/|g"
+ patt="${patt}${1}/"
+ if [ "${patt}" != "/${1}/" ]; then
+ toosdirnames="${toosdirnames} -e s|${patt}|/${1}/|g"
+ fi
+ fi
+ done
+ shift
+ done
+ done
+ fi
+fi
+
# We need another recursive shell script to correctly handle positive
# matches. If we are invoked as
# genmultilib "opt1 opt2" "" "opt1=nopt1 opt2=nopt2"
done
done
optout=`echo ${optout} | sed -e 's/^ //'`
-echo "\". ${optout};\","
+echo "\".${defaultosdirname} ${optout};\","
# Work over the list of combinations. We have to translate each one
# to use the directory names rather than the option names, we have to
if [ -n "${todirnames}" ]; then
dirout=`echo ${combo} | sed ${todirnames}`
else
- dirout=${combo}
+ dirout=`echo ${combo} | sed -e 's/=/-/g'`
fi
# Remove the leading and trailing slashes.
dirout=`echo ${dirout} | sed -e 's|^/||' -e 's|/$||g'`
+ # Use the OS directory names rather than the option names.
+ if [ -n "${toosdirnames}" ]; then
+ osdirout=`echo ${combo} | sed ${toosdirnames}`
+ # Remove the leading and trailing slashes.
+ osdirout=`echo ${osdirout} | sed -e 's|^/||' -e 's|/$||g'`
+ if [ "x${enable_multilib}" != xyes ]; then
+ dirout=".:${osdirout}"
+ disable_multilib=yes
+ else
+ case "${osdirout}" in
+ !*)
+ dirout=`echo ${osdirout} | sed 's/^!//'`
+ ;;
+ *)
+ dirout="${dirout}:${osdirout}"
+ ;;
+ esac
+ fi
+ else
+ if [ "x${enable_multilib}" != xyes ]; then
+ # genmultilib with --disable-multilib should be
+ # called with '' '' '' '' '' '' '' no
+ # if MULTILIB_OSDIRNAMES is empty.
+ exit 1
+ fi
+ fi
+
# Look through the options. We must output each option that is
# present, and negate each option that is not present.
optout=
# Note, the format of the matches is reversed compared
# to what we want, so switch them around.
echo ""
-echo "static char *multilib_matches_raw[] = {"
+echo "static const char *const multilib_matches_raw[] = {"
for match in ${matches}; do
l=`echo ${match} | sed -e 's/=.*$//' -e 's/?/=/g'`
r=`echo ${match} | sed -e 's/^.*=//' -e 's/?/=/g'`
# Output the default options now
echo ""
-echo "static char *multilib_extra = \"${extra}\";"
+echo "static const char *multilib_extra = \"${extra}\";"
# Output the exclusion rules now
echo ""
-echo "static char *multilib_exclusions_raw[] = {"
+echo "static const char *const multilib_exclusions_raw[] = {"
for rule in ${exclusions}; do
s=`echo ${rule} | sed -e 's,/, ,g'`
echo "\"${s};\","
echo "NULL"
echo "};"
-rm -f tmpmultilib2
+# Output the options now
+moptions=`echo ${options} | sed -e 's,[ ][ ]*, ,g'`
+echo ""
+echo "static const char *multilib_options = \"${moptions}\";"
+
+# Finally output the disable flag if specified
+if [ "x${disable_multilib}" = xyes ]; then
+ echo ""
+ echo "#define DISABLE_MULTILIB 1"
+fi
+
+cd ..
+rm -r tmpmultilib.$$
exit 0
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