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
37# select the program
38elf="$1"
39shift
40
41archstring=""
42readelf="arc-zephyr-elf-readelf"
43# If readelf is installed, we can use the attributes
44# in the file to determine the target cpu
45if command -v "$readelf" >/dev/null 2>/dev/null; then
46    # LLVM-based toolchains readelf produces different output from GNU, so
47    # check --version output first.
48    if "$readelf" --version | grep LLVM >/dev/null; then
49        archstring=$("$readelf" --arch-specific "$elf" | grep "Value: rv" | cut -d: -f2)
50    else
51        archstring=$("$readelf" --arch-specific "$elf" | grep Tag_ARC_CPU_name | cut -d: -f2 | tr -d '" ')
52    fi
53fi
54if [ -z "$archstring" ]; then
55    echo "Could not determine architecture for $elf, is readelf installed?" >&2
56    exit 77
57fi
58
59cpu=$archstring
60
61case "$cpu" in
62    hs5*)
63        qemu=qemu-system-arc
64        cpu=hs5x
65        ;;
66    hs6x|fpud)
67        qemu=qemu-system-arc64
68        ;;
69    *)
70        qemu=qemu-system-arc
71        ;;
72esac
73
74# Map stdio to a multiplexed character device so we can use it
75# for the monitor and semihosting output
76
77chardev=stdio,mux=on,id=stdio0
78
79cmdline="program-name"
80input=""
81done=0
82
83while [ "$done" != "1" ]; do
84    case "$1" in
85        --)
86            shift
87            done=1
88            ;;
89        -s|"")
90            done=1
91            ;;
92        *)
93            cmdline="$cmdline $1"
94            case "$input" in
95                "")
96                    input="$1"
97                    ;;
98                *)
99                    input="$input $1"
100                    ;;
101            esac
102            shift
103            ;;
104    esac
105done
106
107# Point the semihosting driver at our new chardev
108
109semi=enable=on,chardev=stdio0,arg="$cmdline"
110
111# Disable monitor
112
113mon=none
114
115# Point serial port at the new chardev
116
117#serial=none
118
119serial=chardev:stdio0
120
121echo "$input" | $qemu -chardev $chardev -semihosting-config "$semi" -monitor "$mon" -serial "$serial" -cpu $cpu -machine arc-sim -nographic -kernel "$elf" -nic none "$@"
122#gdb -fullname -args $qemu -chardev $chardev -semihosting-config "$semi" -monitor "$mon" -serial "$serial" -cpu $cpu -nographic -kernel "$elf" -nic none -machine arc-sim "$@"
123