config-com.multi

   1 # Configure fragment invoked in the common section for subdirs
   2 # wanting multilib support.
   3 #
   4 # The common section was chosen because xiberty clobbers $srcdir in the
   5 # common section of its configure.in.
   6 #
   7 # The intent is to keep as much of this in one place as possible (and out
   8 # of each subdirectory, eg: newlib, libio, etc.) until the right way to do
   9 # this (ha ha) is decided upon.
  10 #
  11 # This is where a target selects what multilib directories to build.
  12 # It is advisable to support a few --enable/--disable options to let the
  13 # user select which libraries s/he really wants.
  14 #
  15 # FIXME: Multilib is currently disabled by default for everything other than
  16 # newlib.  It is up to each target to turn on multilib support for the other
  17 # libraries as desired.
  18 #
  19 # FIXME: It would be better if we could use the --print-multi-lib switch to
  20 # gcc to get the list of directories to build, but at this point the compiler
  21 # has not been built.
  22
  23 # Only do this if --enable-multilib.
  24 # And only if at the top level, not a multilib subdirectory.
  25
  26 if [ "${enable_multilib}" = yes -a -z "${with_multisubdir}" ]; then
  27
  28 # Doing this in the common section means ${target} isn't set yet, so compute
  29 # a copy here.  This is a bit kludgey, but again the current (short term) goal
  30 # is to be as unobtrusive (sp?) to the rest of the sources as possible.
  31
  32 if result=`${config_shell} ${configsub} ${target_alias}` ; then
  33     true
  34 else
  35     echo "Unrecognized target system name ${target_alias}." 1>&2
  36     exit 1
  37 fi
  38 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
  39 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
  40 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
  41 target=${target_cpu}-${target_vendor}-${target_os}
  42
  43 # FIXME: Perhaps we can do something like the following instead.
  44 # Fetch from gcc the multilib directories to use if we can.
  45 # if [ -f ${srcdir}/../gcc/genmultilib -a -f ../gcc/Makefile ]; then
  46 #   options=`grep "^MULTILIB_OPTIONS" ../gcc/Makefile | sed -e 's/^.*=//'`
  47 #   multidirs=`${srcdir}/../gcc/genmultilib "$options" | \
  48 #       sed -e 's/^#define.*//' -e 's/^[.].*//' -e 's/".*//' -e 's/ .*//'`
  49 # else
  50 #   multidirs=""
  51 # fi
  52
  53 case "${target}" in
  54 # start-sanitize-arc
  55 arc-sbp-elf*)
  56         if [ x$enable_biendian = xyes ]
  57         then
  58                 multidirs="be host graphics audio be/host be/graphics be/audio"
  59         else
  60                 multidirs="host graphics audio"
  61         fi
  62         ;;
  63 arc-*-*)
  64         multidirs="be"
  65         ;;
  66 # end-sanitize-arc
  67 hppa*-*-*)
  68         multidirs="soft-float"
  69         ;;
  70 m68*-*-*)
  71         multidirs="m68000 m68020 m68881 msoft-float m68000/m68881 m68000/msoft-float m68020/m68881 m68020/msoft-float"
  72         ;;
  73 i960-*-*)
  74         multidirs=float
  75         ;;
  76 sparclite-*-* | sparclitefrw*-*-*)
  77         multidirs="mfpu msoft-float mflat mno-flat mfpu/mflat mfpu/mno-flat msoft-float/mflat msoft-float/mno-flat"
  78         ;;
  79 sparc-*-* | sparcfrw*-*-*)
  80         multidirs="soft v8 soft/v8"
  81         ;;
  82 z8k-*-*)
  83         multidirs="z8001"
  84         ;;
  85 h8300-*-*)
  86         multidirs=h8300h
  87         ;;
  88 h8500-*-*)
  89         multidirs="mbig msmall mcompact mmedium"
  90         ;;
  91 sh-*-*)
  92         multidirs="ml"
  93         ;;
  94 mips*-*-*)
  95         # Note that not all of these will be built for a particular
  96         # target; what is build depends upon the output gcc
  97         # --print-multi-lib.  We configure them all, to make our life
  98         # simpler here.  If somebody cares about configuration
  99         # efficiency, they will need to switch off on the various
 100         # targets to configure just the directories needed for that
 101         # target.
 102         #
 103         # In the long run, it would be better to configure based on
 104         # the output of gcc --print-multi-lib, but, to do that, we
 105         # would have to build gcc before configuring newlib.
 106         #
 107         # Default to including the single-float directories.
 108         if [ x$enable_single_float = x ]; then
 109           enable_single_float=yes
 110         fi
 111         if [ x$enable_single_float = xyes ]; then
 112           multidirs="soft-float single el eb mips1 mips3 soft-float/el soft-float/eb soft-float/mips1 soft-float/mips3 soft-float/el/mips1 soft-float/el/mips3 soft-float/eb/mips1 soft-float/eb/mips3 single/el single/eb single/mips1 single/mips3 single/el/mips1 single/el/mips3 single/eb/mips1 single/eb/mips3 el/mips1 el/mips3 eb/mips1 eb/mips3"
 113         else
 114           multidirs="soft-float el eb mips1 mips3 soft-float/el soft-float/eb soft-float/mips1 soft-float/mips3 soft-float/el/mips1 soft-float/el/mips3 soft-float/eb/mips1 soft-float/eb/mips3 el/mips1 el/mips3 eb/mips1 eb/mips3"
 115         fi
 116         ;;
 117 powerpc-*-eabiaix*)
 118         multidirs="soft-float relocatable little-endian call-sysv little-endian/call-sysv relocatable/little-endian relocatable/call-sysv relocatable/little-endian/call-sysv soft-float/relocatable soft-float/little-endian soft-float/call-sysv soft-float/little-endian/call-sysv soft-float/relocatable/little-endian soft-float/relocatable/call-sysv soft-float/relocatable/little-endian/call-sysv";;
 119         ;;
 120 powerpc-*-eabi* | powerpc-*-elf* | powerpc-*-sysv4*)
 121         multidirs="soft-float relocatable little-endian call-aix little-endian/call-aix relocatable/little-endian relocatable/call-aix relocatable/little-endian/call-aix soft-float/relocatable soft-float/little-endian soft-float/call-aix soft-float/little-endian/call-aix soft-float/relocatable/little-endian soft-float/relocatable/call-aix soft-float/relocatable/little-endian/call-aix";;
 122         ;;
 123 powerpcle-*-eabi* | powerpcle-*-elf* | powerpcle-*-sysv4*)
 124         multidirs="soft-float relocatable big-endian call-aix big-endian/call-aix relocatable/big-endian relocatable/call-aix relocatable/big-endian/call-aix soft-float/relocatable soft-float/big-endian soft-float/call-aix soft-float/big-endian/call-aix soft-float/relocatable/big-endian soft-float/relocatable/call-aix soft-float/relocatable/big-endian/call-aix";;
 125         ;;
 126 *)
 127         multidirs=
 128         ;;
 129 esac
 130
 131 # We must freshly configure each subdirectory.  This bit of code is
 132 # actually partially stolen from the main configure script.  FIXME.
 133
 134 if [ -n "${multidirs}" ] && [ -z "${norecursion}" ]; then
 135   for dir in ${multidirs}; do
 136
 137     if [ -d ${dir} ]; then true; else mkdir ${dir}; fi
 138
 139     dotdot=../`echo ${dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
 140
 141     case ${srcdir} in
 142     ".")
 143       echo Building symlink tree in `pwd`/${dir}
 144       rm -f tmpconfig
 145       cat >tmpconfig <<\EOF
 146 #!/bin/sh
 147 for f in `ls -a $1`; do
 148   if [ -d $1$f ]; then
 149     found=
 150     for i in $2; do
 151       if [ "$f" = "$i" ]; then
 152         found=yes
 153       fi
 154     done
 155     if [ -z "${found}" ]; then
 156       if [ -d $f ]; then true; else mkdir $f; fi
 157       (cd $f; ../$0 ../$1$f/ "$2")
 158     fi
 159   else
 160     rm -f $f
 161     ln -s $1$f .
 162   fi
 163 done
 164 EOF
 165       chmod +x tmpconfig
 166       (cd ${dir};
 167        ${dotdot}tmpconfig ${dotdot} ". .. CVS tmpconfig ${multidirs}")
 168       rm -f tmpconfig
 169       srcdiroption=
 170       ;;
 171     *)
 172       case "${srcdir}" in
 173       /*) # absolute path
 174         newsrcdir=${srcdir}/${configdir}
 175         ;;
 176       *) # otherwise relative
 177         newsrcdir=${dotdot}${srcdir}/${configdir}
 178         ;;
 179       esac
 180       srcdiroption="-srcdir=${newsrcdir}"
 181       ;;
 182     esac
 183
 184     case "${progname}" in
 185     /*)     recprog=${progname} ;;
 186     *)      recprog=${dotdot}${progname} ;;
 187     esac
 188
 189     POPDIR=${PWD=`pwd`}
 190     cd ${dir}
 191     if eval ${config_shell} ${recprog} ${verbose} \
 192         --with-multisubdir=${dir} \
 193         ${buildopt} --host=${host_alias} --target=${target_alias} \
 194         ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 195         ${srcdiroption} ${program_prefixoption} ${program_suffixoption} \
 196         ${program_transform_nameoption} ${site_option} ${withoptions} \
 197         ${withoutoptions} ${enableoptions} ${disableoptions} \
 198         ${cache_file_option} ${removing} ${other_options} ${redirect} ; then
 199       true
 200     else
 201       exit 1
 202     fi
 203
 204     cd ${POPDIR}
 205
 206   done
 207 fi
 208
 209 fi # ${enable_multilib = yes -a -z ${with_multisubdir}