Adding target OS 'RDOS' to binutils

[Leif Ekblad]

> Write the patches, sign a copyright assignment, send them to this
> mailing list.

OK. These patches are for version 2.12 of binutils.

config.sub file:

# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
# Here we must recognize all the valid KERNEL-OS combinations.
maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
case $maybe_os in
  nto-qnx* | linux-gnu* | storm-chaos* | os2-emx* | windows32-* | 
rtmk-nova*)
    os=-$maybe_os
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
    ;;
  rdos*)
 os=-rdos
 basic_machine=
 ;;
  *)
    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
    if [ $basic_machine != $1 ]
    then os=`echo $1 | sed 's/.*-/-/'`
    else os=; fi
    ;;
esac

### Let's recognize common machines as not being operating systems so
### that things like config.sub decstation-3100 work.  We also
### recognize some manufacturers as not being operating systems, so we
### can provide default operating systems below.
case $os in

.....

 -rdos)
  basic_machine=i386-pc
  os=-rdos
  ;;
esac

# Decode manufacturer-specific aliases for certain operating systems.

if [ x"$os" != x"" ]
then
case $os in

....

 -rdos)
  os=-rdos
  ;;

....

 *)
  # Get rid of the `-' at the beginning of $os.
  os=`echo $os | sed 's/[^-]*-//'`
  echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
  exit 1
  ;;
esac

configure.in:

case "${target}" in

....

  i[3456]86-*-coff | i[3456]86-*-elf | i[3456]86-*-rdos)
    if [ x${is_cross_compiler} != xno ] ; then
         target_configdirs="${target_configdirs} target-libstub 
target-cygmon"
    fi
    ;;


bfd/config.bfd:

case "${targ}" in

.....

  i[3456]86-*-dgux* | i[3456]86-*-sysv5* | i[3456]86-*-rdos)
    targ_defvec=bfd_elf32_i386_vec
    targ_selvecs=i386coff_vec
    ;;

gas/configure

    # assign object format
    case ${generic_target} in

....

      i386-*-rdos*)         fmt=elf ;;

ld/configure.tgt

case "${targ}" in

....

i[3456]86-*-rdos*)  targ_emul=elf_i386 ;;


Regards,
Leif Ekblad