1#!/bin/sh
2#
3# SPDX-License-Identifier: BSD-3-Clause
4#
5# Copyright © 2020 Keith Packard
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10#
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13#
14# 2. Redistributions in binary form must reproduce the above
15#    copyright notice, this list of conditions and the following
16#    disclaimer in the documentation and/or other materials provided
17#    with the distribution.
18#
19# 3. Neither the name of the copyright holder nor the names of its
20#    contributors may be used to endorse or promote products derived
21#    from this software without specific prior written permission.
22#
23# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
26# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
27# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
32# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
34# OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36
37qemu="qemu-system-aarch64"
38
39# select the program
40elf="$1"
41shift
42
43# Map stdio to a multiplexed character device so we can use it
44# for the monitor and semihosting output
45
46chardev=stdio,mux=on,id=stdio0
47
48# Point the semihosting driver at our new chardev
49
50semi=enable=on,chardev=stdio0
51
52input=""
53
54case "$1" in
55    --)
56	semi="$semi",arg="$2"
57	shift
58	shift
59	;;
60    -*|"")
61	semi="$semi",arg=""
62	;;
63    *)
64	semi="$semi",arg="$1"
65	input="$1"
66	shift
67	;;
68esac
69
70# Disable monitor
71
72mon=none
73
74# Point serial port at new chardev
75
76serial=none
77
78echo "$input" | $qemu -chardev $chardev -semihosting-config "$semi" -monitor "$mon" -serial "$serial" -M virt -cpu cortex-a57 -nographic -kernel "$elf" "$@" -nic none
79