import tempfile
import time
import traceback
+import pipes
import pexpect
+print_log_names = False
+real_stdout = sys.stdout
+
# Note that gdb comes with its own testsuite. I was unable to figure out how to
# run that testsuite against the spike simulator.
raise Exception("Compile failed!")
class Spike(object):
- def __init__(self, target, halted=False, timeout=None, with_jtag_gdb=True):
+ def __init__(self, target, halted=False, timeout=None, with_jtag_gdb=True,
+ isa=None):
"""Launch spike. Return tuple of its process and the port it's running
on."""
self.process = None
+ self.isa = isa
if target.harts:
harts = target.harts
self.logfile = tempfile.NamedTemporaryFile(prefix="spike-",
suffix=".log")
self.logname = self.logfile.name
+ if print_log_names:
+ real_stdout.write("Temporary spike log: %s\n" % self.logname)
self.logfile.write("+ %s\n" % " ".join(cmd))
self.logfile.flush()
self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
assert len(set(t.xlen for t in harts)) == 1, \
"All spike harts must have the same XLEN"
- if harts[0].xlen == 32:
- cmd += ["--isa", "RV32G"]
+ if self.isa:
+ isa = self.isa
else:
- cmd += ["--isa", "RV64G"]
+ isa = "RV%dG" % harts[0].xlen
+
+ cmd += ["--isa", isa]
assert len(set(t.ram for t in harts)) == 1, \
"All spike harts must have the same RAM layout"
return self.process.wait(*args, **kwargs)
class VcsSim(object):
- logname = "simv.log"
+ logfile = tempfile.NamedTemporaryFile(prefix='simv', suffix='.log')
+ logname = logfile.name
- def __init__(self, sim_cmd=None, debug=False):
+ def __init__(self, sim_cmd=None, debug=False, timeout=300):
if sim_cmd:
cmd = shlex.split(sim_cmd)
else:
if debug:
cmd[0] = cmd[0] + "-debug"
cmd += ["+vcdplusfile=output/gdbserver.vpd"]
+
logfile = open(self.logname, "w")
+ if print_log_names:
+ real_stdout.write("Temporary VCS log: %s\n" % self.logname)
logfile.write("+ %s\n" % " ".join(cmd))
logfile.flush()
+
listenfile = open(self.logname, "r")
listenfile.seek(0, 2)
self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
stdout=logfile, stderr=logfile)
done = False
+ start = time.time()
while not done:
# Fail if VCS exits early
exit_code = self.process.poll()
self.port = int(match.group(1))
os.environ['JTAG_VPI_PORT'] = str(self.port)
+ if (time.time() - start) > timeout:
+ raise Exception("Timed out waiting for VCS to listen for JTAG "
+ "vpi")
+
def __del__(self):
try:
self.process.kill()
class Openocd(object):
logfile = tempfile.NamedTemporaryFile(prefix='openocd', suffix='.log')
logname = logfile.name
- print "OpenOCD Temporary Log File: %s" % logname
def __init__(self, server_cmd=None, config=None, debug=False, timeout=60):
self.timeout = timeout
cmd.append("-d")
logfile = open(Openocd.logname, "w")
- logfile.write("+ %s\n" % " ".join(cmd))
+ if print_log_names:
+ real_stdout.write("Temporary OpenOCD log: %s\n" % Openocd.logname)
+ env_entries = ("REMOTE_BITBANG_HOST", "REMOTE_BITBANG_PORT")
+ env_entries = [key for key in env_entries if key in os.environ]
+ logfile.write("+ %s%s\n" % (
+ "".join("%s=%s " % (key, os.environ[key]) for key in env_entries),
+ " ".join(map(pipes.quote, cmd))))
logfile.flush()
self.gdb_ports = []
Exception.__init__(self)
self.address = address
+class CouldNotFetch(Exception):
+ def __init__(self, regname, explanation):
+ Exception.__init__(self)
+ self.regname = regname
+ self.explanation = explanation
+
Thread = collections.namedtuple('Thread', ('id', 'description', 'target_id',
'name', 'frame'))
"""A single gdb class which can interact with one or more gdb instances."""
# pylint: disable=too-many-public-methods
+ # pylint: disable=too-many-instance-attributes
def __init__(self, ports,
cmd=os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb"),
- timeout=60,
- binary=None):
+ timeout=60, binary=None):
assert ports
+ self.ports = ports
+ self.cmd = cmd
+ self.timeout = timeout
+ self.binary = binary
+
self.stack = []
+ self.harts = {}
self.logfiles = []
self.children = []
logfile = tempfile.NamedTemporaryFile(prefix="gdb@%d-" % port,
suffix=".log")
self.logfiles.append(logfile)
+ if print_log_names:
+ real_stdout.write("Temporary gdb log: %s\n" % logfile.name)
child = pexpect.spawn(cmd)
child.logfile = logfile
child.logfile.write("+ %s\n" % cmd)
self.children.append(child)
self.active_child = self.children[0]
- self.harts = {}
- for port, child in zip(ports, self.children):
+ def connect(self):
+ for port, child in zip(self.ports, self.children):
self.select_child(child)
self.wait()
self.command("set confirm off")
self.command("set height 0")
# Force consistency.
self.command("set print entry-values no")
- self.command("set remotetimeout %d" % timeout)
+ self.command("set remotetimeout %d" % self.timeout)
self.command("target extended-remote localhost:%d" % port)
- if binary:
- self.command("file %s" % binary)
+ if self.binary:
+ self.command("file %s" % self.binary)
threads = self.threads()
for t in threads:
hartid = None
hartid = max(self.harts) + 1
else:
hartid = 0
- self.harts[hartid] = (child, t)
+ # solo: True iff this is the only thread on this child
+ self.harts[hartid] = {'child': child,
+ 'thread': t,
+ 'solo': len(threads) == 1}
def __del__(self):
for child in self.children:
del child
+ def one_hart_per_gdb(self):
+ return all(h['solo'] for h in self.harts.itervalues())
+
def lognames(self):
return [logfile.name for logfile in self.logfiles]
self.active_child = child
def select_hart(self, hart):
- child, thread = self.harts[hart.id]
- self.select_child(child)
- output = self.command("thread %s" % thread.id)
- assert "Unknown" not in output
+ h = self.harts[hart.id]
+ self.select_child(h['child'])
+ if not h['solo']:
+ output = self.command("thread %s" % h['thread'].id, timeout=10)
+ assert "Unknown" not in output
def push_state(self):
self.stack.append({
m = re.search("Cannot access memory at address (0x[0-9a-f]+)", output)
if m:
raise CannotAccess(int(m.group(1), 0))
+ m = re.search(r"Could not fetch register \"(\w+)\"; (.*)$", output)
+ if m:
+ raise CouldNotFetch(m.group(1), m.group(2))
rhs = output.split('=')[-1]
return self.parse_string(rhs)
log_fd.write("Test: %s\n" % name)
log_fd.write("Target: %s\n" % type(target).__name__)
start = time.time()
+ global real_stdout # pylint: disable=global-statement
real_stdout = sys.stdout
sys.stdout = log_fd
try:
- result = instance.run(real_stdout)
+ result = instance.run()
log_fd.write("Result: %s\n" % result)
finally:
sys.stdout = real_stdout
log_fd.write("Time elapsed: %.2fs\n" % (time.time() - start))
+ log_fd.flush()
print "[%s] %s in %.2fs" % (name, result, time.time() - start)
if result not in good_results and parsed.print_failures:
sys.stdout.write(open(log_name).read())
help="Exit as soon as any test fails.")
parser.add_argument("--print-failures", action="store_true",
help="When a test fails, print the log file to stdout.")
+ parser.add_argument("--print-log-names", "--pln", action="store_true",
+ help="Print names of temporary log files as soon as they are "
+ "created.")
parser.add_argument("test", nargs='*',
help="Run only tests that are named here.")
parser.add_argument("--gdb",
def postMortem(self):
pass
- def run(self, real_stdout):
+ def run(self):
"""
If compile_args is set, compile a program and set self.binary.
try:
self.classSetup()
- real_stdout.write("[%s] Temporary logs: %s\n" % (
- type(self).__name__, ", ".join(self.logs)))
self.setup()
result = self.test() # pylint: disable=no-member
except TestNotApplicable:
BaseTest.classSetup(self)
if gdb_cmd:
- self.gdb = Gdb(self.server.gdb_ports, gdb_cmd, timeout=self.target.timeout_sec, binary=self.binary)
+ self.gdb = Gdb(self.server.gdb_ports, gdb_cmd,
+ timeout=self.target.timeout_sec, binary=self.binary)
else:
- self.gdb = Gdb(self.server.gdb_ports, timeout=self.target.timeout_sec, binary=self.binary)
+ self.gdb = Gdb(self.server.gdb_ports,
+ timeout=self.target.timeout_sec, binary=self.binary)
self.logs += self.gdb.lognames()
+ self.gdb.connect()
- self.gdb.global_command("set arch riscv:rv%d" % self.hart.xlen)
self.gdb.global_command("set remotetimeout %d" %
self.target.timeout_sec)
hart.misa = self.gdb.p("$misa")
txt = "RV"
- if (hart.misa >> 30) == 1:
- txt += "32"
- elif (hart.misa >> 62) == 2:
- txt += "64"
- elif (hart.misa >> 126) == 3:
- txt += "128"
+ misa_xlen = 0
+ if ((hart.misa & 0xFFFFFFFF) >> 30) == 1:
+ misa_xlen = 32
+ elif ((hart.misa & 0xFFFFFFFFFFFFFFFF) >> 62) == 2:
+ misa_xlen = 64
+ elif ((hart.misa & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF) >> 126) == 3:
+ misa_xlen = 128
else:
raise TestFailed("Couldn't determine XLEN from $misa (0x%x)" %
self.hart.misa)
+ if misa_xlen != hart.xlen:
+ raise TestFailed("MISA reported XLEN of %d but we were "\
+ "expecting XLEN of %d\n" % (misa_xlen, hart.xlen))
+
+ txt += ("%d" % misa_xlen)
+
for i in range(26):
if hart.misa & (1<<i):
txt += chr(i + ord('A'))