jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
tests/guest-debug: add a simple test runner
The test runners job is to start QEMU with guest debug enabled and
then spawn a gdb process running a test script that exercises the
functionality it wants to test.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200316172155.971-23-alex.bennee@linaro.org>
+57
+57
tests/guest-debug/run-test.py
+57
tests/guest-debug/run-test.py
···
1
+
#!/usr/bin/env python3
2
+
#
3
+
# Run a gdbstub test case
4
+
#
5
+
# Copyright (c) 2019 Linaro
6
+
#
7
+
# Author: Alex Bennée <alex.bennee@linaro.org>
8
+
#
9
+
# This work is licensed under the terms of the GNU GPL, version 2 or later.
10
+
# See the COPYING file in the top-level directory.
11
+
#
12
+
# SPDX-License-Identifier: GPL-2.0-or-later
13
+
14
+
import argparse
15
+
import subprocess
16
+
import shutil
17
+
import shlex
18
+
19
+
def get_args():
20
+
parser = argparse.ArgumentParser(description="A gdbstub test runner")
21
+
parser.add_argument("--qemu", help="Qemu binary for test",
22
+
required=True)
23
+
parser.add_argument("--qargs", help="Qemu arguments for test")
24
+
parser.add_argument("--binary", help="Binary to debug",
25
+
required=True)
26
+
parser.add_argument("--test", help="GDB test script",
27
+
required=True)
28
+
parser.add_argument("--gdb", help="The gdb binary to use", default=None)
29
+
30
+
return parser.parse_args()
31
+
32
+
if __name__ == '__main__':
33
+
args = get_args()
34
+
35
+
# Search for a gdb we can use
36
+
if not args.gdb:
37
+
args.gdb = shutil.which("gdb-multiarch")
38
+
if not args.gdb:
39
+
args.gdb = shutil.which("gdb")
40
+
if not args.gdb:
41
+
print("We need gdb to run the test")
42
+
exit(-1)
43
+
44
+
# Launch QEMU with binary
45
+
if "system" in args.qemu:
46
+
cmd = "%s %s %s -s -S" % (args.qemu, args.qargs, args.binary)
47
+
else:
48
+
cmd = "%s %s -g 1234 %s" % (args.qemu, args.qargs, args.binary)
49
+
50
+
inferior = subprocess.Popen(shlex.split(cmd))
51
+
52
+
# Now launch gdb with our test and collect the result
53
+
gdb_cmd = "%s %s -ex 'target remote localhost:1234' -x %s" % (args.gdb, args.binary, args.test)
54
+
55
+
result = subprocess.call(gdb_cmd, shell=True);
56
+
57
+
exit(result)