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      1 dnl Copyright (C) 1997-2024 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 Specify the alignment restrictions of the target architecture.
     17 dnl Without this option all possible alignment restrictions are accommodated.
     18 AC_DEFUN([SIM_AC_OPTION_ALIGNMENT],
     19 [dnl
     20 AC_MSG_CHECKING([whether to force sim alignment])
     21 sim_alignment=
     22 AC_ARG_ENABLE(sim-alignment,
     23 [AS_HELP_STRING([--enable-sim-alignment=align],
     24 		[Specify strict, nonstrict or forced alignment of memory accesses])],
     25 [case "${enableval}" in
     26   yes | strict | STRICT)      sim_alignment="STRICT_ALIGNMENT";;
     27   no | nonstrict | NONSTRICT) sim_alignment="NONSTRICT_ALIGNMENT";;
     28   forced | FORCED)            sim_alignment="FORCED_ALIGNMENT";;
     29   *) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment");;
     30 esac])dnl
     31 AC_DEFINE_UNQUOTED([WITH_ALIGNMENT], [${sim_alignment:-0}], [Sim alignment settings])
     32 AC_MSG_RESULT([${sim_alignment:-no}])
     33 ])dnl
     34