sim/m4/sim_ac_option_bitsize.m4

   1 dnl Copyright (C) 1997-2022 Free Software Foundation, Inc.
   2 dnl
   3 dnl This program is free software; you can redistribute it and/or modify
   4 dnl it under the terms of the GNU General Public License as published by
   5 dnl the Free Software Foundation; either version 3 of the License, or
   6 dnl (at your option) any later version.
   7 dnl
   8 dnl This program is distributed in the hope that it will be useful,
   9 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 dnl GNU General Public License for more details.
  12 dnl
  13 dnl You should have received a copy of the GNU General Public License
  14 dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15 dnl
  16 dnl --enable-sim-bitsize is for developers of the simulator
  17 dnl It specifies the number of BITS in the target.
  18 dnl arg[1] is the number of bits in a word
  19 dnl arg[2] is the number assigned to the most significant bit
  20 dnl arg[3] is the number of bits in an address
  21 dnl arg[4] is the number of bits in an OpenFirmware cell.
  22 dnl FIXME: this information should be obtained from bfd/archure
  23 AC_DEFUN([SIM_AC_OPTION_BITSIZE],
  24 wire_word_bitsize="[$1]"
  25 wire_word_msb="[$2]"
  26 wire_address_bitsize="[$3]"
  27 wire_cell_bitsize="[$4]"
  28 [AC_ARG_ENABLE(sim-bitsize,
  29 [AS_HELP_STRING([--enable-sim-bitsize=N], [Specify target bitsize (32 or 64)])],
  30 [sim_bitsize=
  31 case "${enableval}" in
  32   64,63 | 64,63,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=63";;
  33   32,31 | 32,31,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31";;
  34   64,0 | 64,0,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0";;
  35   32,0 | 64,0,* ) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0";;
  36   32) if test x"$wire_word_msb" != x -a x"$wire_word_msb" != x0; then
  37         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31"
  38       else
  39         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=0"
  40       fi ;;
  41   64) if test x"$wire_word_msb" != x -a x"$wire_word_msb" != x0; then
  42         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=63"
  43       else
  44         sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=64 -DWITH_TARGET_WORD_MSB=0"
  45       fi ;;
  46   *)  AC_MSG_ERROR("--enable-sim-bitsize was given $enableval.  Expected 32 or 64") ;;
  47 esac
  48 # address bitsize
  49 tmp=`echo "${enableval}" | sed -e "s/^[[0-9]]*,*[[0-9]]*,*//"`
  50 case x"${tmp}" in
  51   x ) ;;
  52   x32 | x32,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_ADDRESS_BITSIZE=32" ;;
  53   x64 | x64,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_ADDRESS_BITSIZE=64" ;;
  54   * ) AC_MSG_ERROR("--enable-sim-bitsize was given address size $enableval.  Expected 32 or 64") ;;
  55 esac
  56 # cell bitsize
  57 tmp=`echo "${enableval}" | sed -e "s/^[[0-9]]*,*[[0-9*]]*,*[[0-9]]*,*//"`
  58 case x"${tmp}" in
  59   x ) ;;
  60   x32 | x32,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_CELL_BITSIZE=32" ;;
  61   x64 | x64,* ) sim_bitsize="${sim_bitsize} -DWITH_TARGET_CELL_BITSIZE=64" ;;
  62   * ) AC_MSG_ERROR("--enable-sim-bitsize was given cell size $enableval.  Expected 32 or 64") ;;
  63 esac
  64 if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
  65   echo "Setting bitsize flags = $sim_bitsize" 6>&1
  66 fi],
  67 [sim_bitsize=""
  68 if test x"$wire_word_bitsize" != x; then
  69   sim_bitsize="$sim_bitsize -DWITH_TARGET_WORD_BITSIZE=$wire_word_bitsize"
  70 fi
  71 if test x"$wire_word_msb" != x; then
  72   sim_bitsize="$sim_bitsize -DWITH_TARGET_WORD_MSB=$wire_word_msb"
  73 fi
  74 if test x"$wire_address_bitsize" != x; then
  75   sim_bitsize="$sim_bitsize -DWITH_TARGET_ADDRESS_BITSIZE=$wire_address_bitsize"
  76 fi
  77 if test x"$wire_cell_bitsize" != x; then
  78   sim_bitsize="$sim_bitsize -DWITH_TARGET_CELL_BITSIZE=$wire_cell_bitsize"
  79 fi])dnl
  80 ])
  81 AC_SUBST(sim_bitsize)