1#!/bin/sh
2#
3# SPDX-License-Identifier: BSD-3-Clause
4#
5# Copyright © 2019 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-arm"
38
39# select the program
40elf="$1"
41shift
42
43cpu=cortex-m0
44machine=virtm
45
46#
47# Make sure the target machine is supported by qemu
48#
49if "$qemu" -machine help | grep -q "^$machine "; then
50    :
51else
52    echo "Skipping $elf" unsupported machine
53    exit 77
54fi
55
56# Map stdio to a multiplexed character device so we can use it
57# for the monitor and semihosting output
58
59chardev=stdio,mux=on,id=stdio0
60
61# Point the semihosting driver at our new chardev
62
63semi=enable=on,chardev=stdio0
64
65input=""
66
67case "$1" in
68    --)
69	semi="$semi",arg="$2"
70	shift
71	shift
72	;;
73    -*|"")
74	;;
75    *)
76	semi="$semi",arg="$1"
77	input="$1"
78	shift
79	;;
80esac
81
82# Disable monitor
83
84mon=none
85
86# Disable serial
87
88serial=none
89
90echo "$input" | "$qemu" \
91      -chardev "$chardev" \
92      -semihosting-config "$semi" \
93      -monitor "$mon" \
94      -serial "$serial" \
95      -machine "$machine",accel=tcg \
96      -cpu "$cpu" \
97      -device loader,file="$elf",cpu-num=0 \
98      -nographic \
99      "$@"
100