#! /bin/sh
# CGEN generic assembler support code.
#
#   Copyright (C) 2000-2022 Free Software Foundation, Inc.
#
#   This file is part of the GNU opcodes library.
#
#   This library is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 3, or (at your option)
#   any later version.
#
#   It is distributed in the hope that it will be useful, but WITHOUT
#   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
#   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
#   License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program; if not, write to the Free Software Foundation, Inc.,
#   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
#
# Generate CGEN opcode files: arch-desc.[ch], arch-opc.[ch],
# arch-asm.c, arch-dis.c, arch-opinst.c, arch-ibld.[ch].
#
# Usage:
# cgen.sh action srcdir cgen cgendir cgenflags arch prefix \
#         arch-file opc-file options [extrafiles]
#
# ACTION is currently always "opcodes". It exists to be consistent with the
# simulator.
# ARCH is the name of the architecture.
# It is substituted into @arch@ and @ARCH@ in the generated files.
# PREFIX is both the generated file prefix and is substituted into
# @prefix@ in the generated files.
# ARCH-FILE is the name of the .cpu file (including path).
# OPC-FILE is the name of the .opc file (including path).
# OPTIONS is comma separated list of options (???).
# EXTRAFILES is a space separated list (1 arg still) of extra files to build:
#	- opinst - arch-opinst.c is being made, causes semantic analysis
#
# We store the generated files in the source directory until we decide to
# ship a Scheme interpreter (or other implementation) with gdb/binutils.
# Maybe we never will.

# We want to behave like make, any error forces us to stop.
set -e

action=$1
srcdir=$2
cgen="$3"
cgendir=$4
cgenflags=$5
arch=$6
prefix=$7
archfile=$8
opcfile=$9
shift ; options=$9

# List of extra files to build.
# Values: opinst (only 1 extra file at present)
shift ; extrafiles=$9

rootdir=${srcdir}/..

# $arch is $6, as passed on the command line.
# $ARCH is the same argument but in all uppercase.
# Both forms are used in this script.

lowercase='abcdefghijklmnopqrstuvwxyz'
uppercase='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
ARCH=`echo ${arch} | tr "${lowercase}" "${uppercase}"`

# Allow parallel makes to run multiple cgen's without colliding.
tmp=tmp-$$

extrafile_args=""
for ef in .. $extrafiles
do
    case $ef in
    ..) ;;
    opinst) extrafile_args="-Q ${tmp}-opinst.c1 $extrafile_args" ;;
    esac
done

header="/* DO NOT EDIT!  -*- buffer-read-only: t -*- vi:set ro:  */"

case $action in
opcodes)
	# Remove residual working files.
	rm -f ${tmp}-desc.h ${tmp}-desc.h1
	rm -f ${tmp}-desc.c ${tmp}-desc.c1
	rm -f ${tmp}-opc.h ${tmp}-opc.h1
	rm -f ${tmp}-opc.c ${tmp}-opc.c1
	rm -f ${tmp}-opinst.c ${tmp}-opinst.c1
	rm -f ${tmp}-ibld.h ${tmp}-ibld.h1
	rm -f ${tmp}-ibld.c ${tmp}-ibld.in1
	rm -f ${tmp}-asm.c ${tmp}-asm.in1
	rm -f ${tmp}-dis.c ${tmp}-dis.in1

	# Run CGEN.
	${cgen} ${cgendir}/cgen-opc.scm \
		-s ${cgendir} \
		${cgenflags} \
		-f "${options}" \
		-m all \
		-a ${archfile} \
	        -OPC ${opcfile} \
		-H ${tmp}-desc.h1 \
		-C ${tmp}-desc.c1 \
		-O ${tmp}-opc.h1 \
		-P ${tmp}-opc.c1 \
		-L ${tmp}-ibld.in1 \
		-A ${tmp}-asm.in1 \
		-D ${tmp}-dis.in1 \
		${extrafile_args}

	# Customise generated files for the particular architecture.
	sed -e "1i$header" \
	    -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	    -e 's/[ 	][ 	]*$//' < ${tmp}-desc.h1 > ${tmp}-desc.h
	${rootdir}/move-if-change ${tmp}-desc.h ${srcdir}/${prefix}-desc.h

	sed -e "1i$header" \
	    -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	    -e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' \
	    < ${tmp}-desc.c1 > ${tmp}-desc.c
	${rootdir}/move-if-change ${tmp}-desc.c ${srcdir}/${prefix}-desc.c

	sed -e "1i$header" \
	    -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	    -e 's/[ 	][ 	]*$//' < ${tmp}-opc.h1 > ${tmp}-opc.h
	${rootdir}/move-if-change ${tmp}-opc.h ${srcdir}/${prefix}-opc.h

	sed -e "1i$header" \
	    -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	    -e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' \
	    < ${tmp}-opc.c1 > ${tmp}-opc.c
	${rootdir}/move-if-change ${tmp}-opc.c ${srcdir}/${prefix}-opc.c

	case $extrafiles in
	*opinst*)
	  sed -e "1i$header" \
	      -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	      -e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' \
	      < ${tmp}-opinst.c1 >${tmp}-opinst.c
	  ${rootdir}/move-if-change ${tmp}-opinst.c ${srcdir}/${prefix}-opinst.c
	  ;;
	esac

	cat ${srcdir}/cgen-ibld.in ${tmp}-ibld.in1 | \
	  sed -e "1i$header" \
	    -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
	    -e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' > ${tmp}-ibld.c
	${rootdir}/move-if-change ${tmp}-ibld.c ${srcdir}/${prefix}-ibld.c

	sed -e "/ -- assembler routines/ r ${tmp}-asm.in1" ${srcdir}/cgen-asm.in \
	  | sed -e "1i$header" \
		-e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
		-e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' \
	  > ${tmp}-asm.c
	${rootdir}/move-if-change ${tmp}-asm.c ${srcdir}/${prefix}-asm.c

	sed -e "/ -- disassembler routines/ r ${tmp}-dis.in1" ${srcdir}/cgen-dis.in \
	  | sed -e "1i$header" \
		-e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
		-e "s/@prefix@/${prefix}/" -e 's/[ 	][ 	]*$//' \
	  > ${tmp}-dis.c
	${rootdir}/move-if-change ${tmp}-dis.c ${srcdir}/${prefix}-dis.c

	# Remove temporary files.
	rm -f ${tmp}-desc.h1 ${tmp}-desc.c1
	rm -f ${tmp}-opc.h1 ${tmp}-opc.c1
	rm -f ${tmp}-opinst.c1
	rm -f ${tmp}-ibld.h1 ${tmp}-ibld.in1
	rm -f ${tmp}-asm.in1 ${tmp}-dis.in1
	;;

desc)
	# For ports that only generate the desc module & opc header.
	rm -f ${tmp}-desc.h1 ${tmp}-desc.h
	rm -f ${tmp}-desc.c1 ${tmp}-desc.c
	rm -f ${tmp}-opc.h1 ${tmp}-opc.h

	${cgen} ${cgendir}/cgen-opc.scm \
		-s ${cgendir} \
		${cgenflags} \
		-OPC ${opcfile} \
		-f "${archflags}" \
		-m all \
		-a ${archfile} \
		-i all \
		-H ${tmp}-desc.h1 \
		-C ${tmp}-desc.c1 \
		-O ${tmp}-opc.h1

	sed -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
		-e "s/@prefix@/${prefix}/g" \
		< ${tmp}-desc.h1 > ${tmp}-desc.h
	${rootdir}/move-if-change ${tmp}-desc.h ${srcdir}/${arch}-desc.h
	sed -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
		-e "s/@prefix@/${prefix}/g" \
		< ${tmp}-desc.c1 > ${tmp}-desc.c
	${rootdir}/move-if-change ${tmp}-desc.c ${srcdir}/${arch}-desc.c
	sed -e "s/@ARCH@/${ARCH}/g" -e "s/@arch@/${arch}/g" \
		-e "s/@prefix@/${prefix}/g" \
		< ${tmp}-opc.h1 > ${tmp}-opc.h
	${rootdir}/move-if-change ${tmp}-opc.h ${srcdir}/${arch}-opc.h

	rm -f ${tmp}-desc.h1 ${tmp}-desc.c1 ${tmp}-opc.h1
	;;

*)
	echo "$0: bad action: ${action}" >&2
	exit 1
	;;

esac

exit 0
