configure

#!/bin/sh

# configure
# Northern Lights config script
# Author: George Witt
# Date: 2024-03-02
#
# Copyright (c) 2024 George Witt
# SPDX-License-Identifier: BSD-2-Clause

TOOL=llvm

unset CC
unset CXX
unset GNAT
unset GNATBIND
unset LD
unset AR
unset OBJCOPY
unset OBJDUMP
unset RANLIB
unset SIZE
unset STRIP

unset CFLAGS
unset CXXFLAGS
unset ADAFLAGS
unset LDFLAGS
unset TARGET_ARCH

if [ -z ${SKU} ] || [ -z ${ARCH} ]; then
	echo "Please specify SKU and ARCH."
	exit 1
fi

if [ ${SKU} = "prod" ]; then
	TARGET_SKU="prod"
	CFLAGS+=" -O2 -DNDEBUG"
	LDFLAGS+=" -s"
elif [ ${SKU} = "debug" ]; then
	TARGET_SKU="debug"
	CFLAGS+=" -O0 -g -DDEBUG"
else
	echo "Invalid TARGET_SKU"
	exit 1
fi

if [ ${ARCH} = "riscv" ]; then
	TARGET_ARCH="riscv"
	TOOLCHAIN="/opt/riscv"
	CFLAGS+=" -march=rv64imafdc -mabi=lp64d"
	ADAFLAGS+=" -march=rv64imafdc -mabi=lp64d"
else
	echo "Unsupported TARGET_ARCH"
	exit 1
fi

if [ ${TOOL} = "llvm" ]; then
	CC="clang -target riscv64-unknown-elf"
	CXX="clang++ -target riscv64-unknown-elf"
	GNAT="riscv64-unknown-elf-gcc -x ada"
	GNATBIND="riscv64-unknown-elf-gnatbind"
	LD="ld.lld"
	AR="llvm-ar"
	OBJCOPY="llvm-objcopy"
	OBJDUMP="llvm-objdump"
	RANLIB="llvm-ranlib"
	SIZE="llvm-size"
	STRIP="llvm-strip"
else
	echo "Unsupported compiler toolchain"
	exit 1
fi

echo "TOOLCHAIN=\"${TOOLCHAIN}\"" > config.mk
echo "CROSSENV=\\" >> config.mk
echo "PROJECTDIR=\"$(pwd)\"\\" >> config.mk
echo "CC=\"${CC}\"\\" >> config.mk
echo "CXX=\"${CXX}\"\\" >> config.mk
echo "GNAT=\"${GNAT}\"\\" >> config.mk
echo "GNATBIND=\"${GNATBIND}\"\\" >> config.mk
echo "LD=\"${LD}\"\\" >> config.mk
echo "AR=\"${AR}\"\\" >> config.mk
echo "OBJCOPY=\"${OBJCOPY}\"\\" >> config.mk
echo "OBJDUMP=\"${OBJDUMP}\"\\" >> config.mk
echo "RANLIB=\"${RANLIB}\"\\" >> config.mk
echo "SIZE=\"${SIZE}\"\\" >> config.mk
echo "STRIP=\"${STRIP}\"\\" >> config.mk
echo "TARGET_ARCH=\"${TARGET_ARCH}\"\\" >> config.mk
echo "CFLAGS_GLOBAL=\"${CFLAGS}\"\\" >> config.mk
echo "CXXFLAGS_GLOBAL=\"${CXXFLAGS}\"\\" >> config.mk
echo "ADAFLAGS_GLOBAL=\"${ADAFLAGS}\"\\" >> config.mk
echo "LDFLAGS_GLOBAL=\"${LDFLAGS}\"" >> config.mk