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760b3e8bc9
This file is quite large and is getting unmanageable. Split it apart to follow aclocal best practices by putting one-macro-per-file. There shouldn't be any real functional changes here as can be seen in the configure script regens.
67 lines
2.6 KiB
Plaintext
67 lines
2.6 KiB
Plaintext
dnl Copyright (C) 1997-2021 Free Software Foundation, Inc.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl
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dnl Specify the alignment restrictions of the target architecture.
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dnl Without this option all possible alignment restrictions are accommodated.
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dnl arg[1] is hardwired target alignment
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dnl arg[2] is default target alignment
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AC_DEFUN([SIM_AC_OPTION_ALIGNMENT],
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wire_alignment="[$1]"
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default_alignment="[$2]"
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[
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AC_ARG_ENABLE(sim-alignment,
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[AS_HELP_STRING([--enable-sim-alignment=align],
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[Specify strict, nonstrict or forced alignment of memory accesses])],
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[case "${enableval}" in
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strict | STRICT) sim_alignment="-DWITH_ALIGNMENT=STRICT_ALIGNMENT";;
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nonstrict | NONSTRICT) sim_alignment="-DWITH_ALIGNMENT=NONSTRICT_ALIGNMENT";;
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forced | FORCED) sim_alignment="-DWITH_ALIGNMENT=FORCED_ALIGNMENT";;
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yes) if test x"$wire_alignment" != x; then
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sim_alignment="-DWITH_ALIGNMENT=${wire_alignment}"
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else
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if test x"$default_alignment" != x; then
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sim_alignment="-DWITH_ALIGNMENT=${default_alignment}"
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else
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echo "No hard-wired alignment for target $target" 1>&6
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sim_alignment="-DWITH_ALIGNMENT=0"
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fi
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fi;;
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no) if test x"$default_alignment" != x; then
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sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${default_alignment}"
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else
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if test x"$wire_alignment" != x; then
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sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${wire_alignment}"
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else
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echo "No default alignment for target $target" 1>&6
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sim_alignment="-DWITH_DEFAULT_ALIGNMENT=0"
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fi
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fi;;
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*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment"); sim_alignment="";;
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esac
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if test x"$silent" != x"yes" && test x"$sim_alignment" != x""; then
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echo "Setting alignment flags = $sim_alignment" 6>&1
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fi],
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[if test x"$default_alignment" != x; then
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sim_alignment="-DWITH_DEFAULT_ALIGNMENT=${default_alignment}"
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else
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if test x"$wire_alignment" != x; then
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sim_alignment="-DWITH_ALIGNMENT=${wire_alignment}"
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else
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sim_alignment=
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fi
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fi])dnl
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])dnl
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AC_SUBST(sim_alignment)
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