class SerialConnection:
def __init__(self, executable, args):
if get_global_config().pretend:
self.cheribsd = FakeSerialSpawn(executable, args)
else:
print_command([executable, *args])
self.cheribsd = CheriBSDInstance(
CompilationTargets.CHERIBSD_RISCV_HYBRID,
executable,
args,
logfile=sys.stdout,
encoding="utf-8",
timeout=60)
assert isinstance(self.cheribsd, CheriBSDSpawnMixin)
def interact(self):
# interact() prints all input+output -> disable logfile
self.cheribsd.logfile = None
self.cheribsd.logfile_read = None
self.cheribsd.logfile_send = None
self.show_help_message()
self.cheribsd.interact()
@abstractmethod
def show_help_message(self):
...
def __init__(self, executable, args):
if get_global_config().pretend:
self.cheribsd = FakeSerialSpawn(executable, args)
else:
print_command([executable, *args])
self.cheribsd = CheriBSDInstance(CompilationTargets.CHERIBSD_RISCV_HYBRID, executable, args,
logfile=sys.stdout, encoding="utf-8", timeout=60)
assert isinstance(self.cheribsd, CheriBSDSpawnMixin)
def get_board_ip_address(console: boot_cheribsd.CheriBSDInstance, args):
assert not args.use_qemu_instead_of_fpga
ifc = get_network_iface(args)
console.sendline('ifconfig {}'.format(ifc))
idx = console.expect([
re.compile("inet (.+) netmask "),
# error cases:
pexpect.TIMEOUT, "interface " + ifc + " does not exist"], timeout=10)
if idx == 0:
print(console.match)
return console.match.group(1)
console.expect_prompt()
def do_network_off(console: boot_cheribsd.CheriBSDInstance, args):
ifc = get_network_iface(args)
console.run('/sbin/ifconfig {} down'.format(ifc))
# console.run('killall dhclient')
# Note: If we devctl disable le0, we can't enable it anymore
if not args.use_qemu_instead_of_fpga:
console.sendline('/usr/sbin/devctl disable {}'.format(ifc))
console.expect(['{}: detached'.format(ifc),
"Failed to disable {}: Device not configured".format(ifc)
])
def default_setup_tests(qemu: boot_cheribsd.CheriBSDInstance, args: argparse.Namespace):
# Also link the build directory in the target under the host path. This should allow more tests to pass,
# i.e. the libc++ filesystem tests, etc.
if should_mount_builddir:
assert args.build_dir
# the host path might be too long and trigger the shell to emit a continuation line which really confuses
# the pexpect logic.
qemu.run("mkdir -p '{}'".format(Path(args.build_dir).parent))
qemu.checked_run("ln -sf /build '{}'".format(args.build_dir), timeout=60)
boot_cheribsd.success("Mounted build directory using host path")
if should_mount_srcdir:
assert args.source_dir
# the host path might be too long and trigger the shell to emit a continuation line which really confuses
# the pexpect logic.
qemu.run("mkdir -p '{}'".format(Path(args.source_dir).parent))
qemu.checked_run("ln -sf /source '{}'".format(args.source_dir), timeout=60)
boot_cheribsd.success("Mounted source directory using host path")
# Finally call the custom test setup function
if test_setup_function:
test_setup_function(qemu, args)
def do_runbench(console: boot_cheribsd.CheriBSDInstance, tgtdir, script, scriptargs,
failstr="FAILED RUNNING BENCHMARKS", timeout=None, pre_cmd=None, *, args):
if timeout is None:
timeout = args.timeout
badcmd = "/this/command/does/not/exist"
runbenchcmd = './{} {} || {}'.format(script, scriptargs, badcmd)
console.sendline()
console.expect_prompt()
console.run('cd {} && ls -la'.format(tgtdir))
if args.lazy_binding:
console.run('unset LD_CHERI_BIND_NOW')
console.run('unset LD_BIND_NOW')
else:
# Ensure that we don't use lazy binding for CheriABI since MIPS doesn't support it
# This can skew the results since we have faster startup on CHERI but slower runtime
# due to trampolines
console.run('export LD_CHERI_BIND_NOW=1')
console.run('export LD_BIND_NOW=1')
if pre_cmd:
console.run(pre_cmd)
# Log the current environment:
console.run("env")
console.sendline(runbenchcmd)
panicstr = "KDB: enter: "
expects = ["DONE RUNNING BENCHMARKS", ": Command not found.", badcmd + ": not found", failstr, panicstr]
idx = console.expect(expects, timeout=timeout)
if idx != 0:
print("Failed to run benchmark")
if expects[idx] == panicstr:
print("Panic! Extracting backtrace...")
console.sendline("bt")
def do_network_on(console: boot_cheribsd.CheriBSDInstance, args, timeout=300):
ifc = get_network_iface(args)
# Note: If we devctl disable le0, we can't enable it anymore
if not args.use_qemu_instead_of_fpga:
console.run('/usr/sbin/devctl enable {}'.format(ifc),
expected_output='{}: bpf attached'.format(ifc))
console.run('/sbin/ifconfig {} up'.format(ifc))
if ifc != "le0":
# apparently the le0 driver doesn't print this message
console.expect_exact(['{}: link state changed to UP'.format(ifc)])
# Send a newline to ensure a prompt:
console.sendline()
console.expect_prompt()
# No longer needed? console.run('/sbin/ifconfig {} polling'.format(ifc))
console.sendline('/sbin/dhclient {}'.format(ifc))
console.expect(["bound to .* -- renewal in .*\\."], timeout=timeout)
console.expect_prompt()
