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110 lines
3.3 KiB
Python
110 lines
3.3 KiB
Python
#!/usr/bin/env python3
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#
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# Run a gdbstub test case
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#
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# Copyright (c) 2019 Linaro
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#
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# Author: Alex Bennée <alex.bennee@linaro.org>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or later.
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# See the COPYING file in the top-level directory.
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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import argparse
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import subprocess
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import shutil
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import shlex
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import os
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from time import sleep
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from tempfile import TemporaryDirectory
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def get_args():
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parser = argparse.ArgumentParser(description="A gdbstub test runner")
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parser.add_argument("--qemu", help="Qemu binary for test",
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required=True)
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parser.add_argument("--qargs", help="Qemu arguments for test")
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parser.add_argument("--binary", help="Binary to debug",
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required=True)
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parser.add_argument("--test", help="GDB test script",
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required=True)
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parser.add_argument("--gdb", help="The gdb binary to use",
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default=None)
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parser.add_argument("--output", help="A file to redirect output to")
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return parser.parse_args()
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def log(output, msg):
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if output:
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output.write(msg + "\n")
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output.flush()
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else:
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print(msg)
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if __name__ == '__main__':
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args = get_args()
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# Search for a gdb we can use
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if not args.gdb:
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args.gdb = shutil.which("gdb-multiarch")
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if not args.gdb:
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args.gdb = shutil.which("gdb")
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if not args.gdb:
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print("We need gdb to run the test")
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exit(-1)
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if args.output:
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output = open(args.output, "w")
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else:
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output = None
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socket_dir = TemporaryDirectory("qemu-gdbstub")
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socket_name = os.path.join(socket_dir.name, "gdbstub.socket")
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# Launch QEMU with binary
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if "system" in args.qemu:
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cmd = "%s %s %s -gdb unix:path=%s,server=on" % (args.qemu,
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args.qargs,
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args.binary,
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socket_name)
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else:
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cmd = "%s %s -g %s %s" % (args.qemu, args.qargs, socket_name,
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args.binary)
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log(output, "QEMU CMD: %s" % (cmd))
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inferior = subprocess.Popen(shlex.split(cmd))
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# Now launch gdb with our test and collect the result
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gdb_cmd = "%s %s" % (args.gdb, args.binary)
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# run quietly and ignore .gdbinit
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gdb_cmd += " -q -n -batch"
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# disable prompts in case of crash
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gdb_cmd += " -ex 'set confirm off'"
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# connect to remote
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gdb_cmd += " -ex 'target remote %s'" % (socket_name)
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# finally the test script itself
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gdb_cmd += " -x %s" % (args.test)
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sleep(1)
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log(output, "GDB CMD: %s" % (gdb_cmd))
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result = subprocess.call(gdb_cmd, shell=True, stdout=output)
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# A result of greater than 128 indicates a fatal signal (likely a
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# crash due to gdb internal failure). That's a problem for GDB and
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# not the test so we force a return of 0 so we don't fail the test on
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# account of broken external tools.
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if result > 128:
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log(output, "GDB crashed? (%d, %d) SKIPPING" % (result, result - 128))
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exit(0)
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try:
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inferior.wait(2)
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except subprocess.TimeoutExpired:
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log(output, "GDB never connected? Killed guest")
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inferior.kill()
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exit(result)
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