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#!/bin/sh
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Copyright © 2020 Keith Packard
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
#
dir="$(dirname "$0")"
# select the program
elf="$1"
shift
done=0
while [ $# -gt 0 -a $done -eq 0 ]; do
case "$1" in
--stdin)
if [ $# -lt 2 ]; then
echo "Error: --stdin requires a quoted string"
exit 1
fi
stdin="$2"
shift 2
;;
--args)
if [ $# -lt 2 ]; then
echo "Error: --args requires a quoted string"
exit 1
fi
args="$2"
shift 2
;;
*)
done=1
;;
esac
done
qemu="qemu-system-mips"
if file "$elf" | grep -q LSB; then
qemu="qemu-system-mipsel"
fi
cpu=24Kf
# Map stdio to a multiplexed character device so we can use it
# for the monitor and semihosting output
chardev=stdio,mux=on,id=stdio0
semi=enable=on,chardev=stdio0,arg="program-name $args"
# Point the monitor at the new chardev too
mon=none
# Disable the serial port
serial=none
echo "$stdin" | $qemu \
-chardev $chardev \
-semihosting-config "$semi" \
-machine malta \
-cpu $cpu \
-serial null \
-serial null \
-serial "$serial" \
-monitor "$mon" \
-net none \
-nographic \
-kernel "$elf"