import os.path
-import pexpect
+import re
import shlex
import subprocess
-import tempfile
-import testlib
-import unittest
import time
+import pexpect
+
# Note that gdb comes with its own testsuite. I was unable to figure out how to
# run that testsuite against the spike simulator.
def find_file(path):
- for directory in (os.getcwd(), os.path.dirname(testlib.__file__)):
+ for directory in (os.getcwd(), os.path.dirname(__file__)):
fullpath = os.path.join(directory, path)
if os.path.exists(fullpath):
return fullpath
return None
-def compile(args, xlen=32):
+def compile(args, xlen=32): # pylint: disable=redefined-builtin
cc = os.path.expandvars("$RISCV/bin/riscv%d-unknown-elf-gcc" % xlen)
cmd = [cc, "-g"]
for arg in args:
# http://stackoverflow.com/questions/2838244/get-open-tcp-port-in-python/2838309#2838309
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- s.bind(("",0))
+ s.bind(("", 0))
port = s.getsockname()[1]
s.close()
return port
class Spike(object):
- def __init__(self, cmd, binary=None, halted=False, with_gdb=True, timeout=None,
- xlen=64):
- """Launch spike. Return tuple of its process and the port it's running on."""
+ logname = "spike.log"
+
+ def __init__(self, cmd, binary=None, halted=False, with_gdb=True,
+ timeout=None, xlen=64):
+ """Launch spike. Return tuple of its process and the port it's running
+ on."""
if cmd:
cmd = shlex.split(cmd)
else:
cmd = ["spike"]
- if (xlen == 32):
+ if xlen == 32:
cmd += ["--isa", "RV32"]
if timeout:
if with_gdb:
self.port = unused_port()
cmd += ['--gdb-port', str(self.port)]
+ cmd.append("-m32")
cmd.append('pk')
if binary:
cmd.append(binary)
- logfile = open("spike.log", "w")
+ logfile = open(self.logname, "w")
logfile.write("+ %s\n" % " ".join(cmd))
logfile.flush()
- self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
- stderr=logfile)
+ self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
+ stdout=logfile, stderr=logfile)
def __del__(self):
try:
if simv:
cmd = shlex.split(simv)
else:
- cmd = ["simv"]
+ cmd = ["simv"]
cmd += ["+jtag_vpi_enable"]
if debug:
cmd[0] = cmd[0] + "-debug"
logfile.write("+ %s\n" % " ".join(cmd))
logfile.flush()
listenfile = open("simv.log", "r")
- listenfile.seek(0,2)
- self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
- stderr=logfile)
+ listenfile.seek(0, 2)
+ self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
+ stdout=logfile, stderr=logfile)
done = False
- while (not done):
+ while not done:
line = listenfile.readline()
- if (not line):
+ if not line:
time.sleep(1)
- if ("Listening on port 5555" in line):
+ match = re.match(r"^Listening on port (\d+)$", line)
+ if match:
done = True
-
+ self.port = int(match.group(1))
+ print "Using port %d for JTAG VPI" % self.port
+
def __del__(self):
try:
self.process.kill()
except OSError:
pass
-
class Openocd(object):
+ logname = "openocd.log"
+
def __init__(self, cmd=None, config=None, debug=False, otherProcess=None):
# keep handles to other processes -- don't let them be
cmd += ["-f", find_file(config)]
if debug:
cmd.append("-d")
- logfile = open("openocd.log", "w")
+
+ # Assign port
+ self.port = unused_port()
+ print "Using port %d for gdb server" % self.port
+ # This command needs to come before any config scripts on the command
+ # line, since they are executed in order.
+ cmd[1:1] = ["--command", "gdb_port %d" % self.port]
+
+ env = os.environ.copy()
+ env['JTAG_VPI_PORT'] = str(otherProcess.port)
+
+ logfile = open(Openocd.logname, "w")
logfile.write("+ %s\n" % " ".join(cmd))
- self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
- stderr=logfile)
- # TODO: Pick a random port
- self.port = 3333
+ logfile.flush()
+ self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
+ stdout=logfile, stderr=logfile, env=env)
+
+ # Wait for OpenOCD to have made it through riscv_examine(). When using
+ # OpenOCD to communicate with a simulator this may take a long time,
+ # and gdb will time out when trying to connect if we attempt too early.
+ start = time.time()
+ messaged = False
+ while True:
+ log = open(Openocd.logname).read()
+ if "Examined RISCV core" in log:
+ break
+ if not self.process.poll() is None:
+ raise Exception("OpenOCD exited before completing riscv_examine()")
+ if not messaged and time.time() - start > 1:
+ messaged = True
+ print "Waiting for OpenOCD to examine RISCV core..."
def __del__(self):
try:
except OSError:
pass
+class CannotAccess(Exception):
+ def __init__(self, address):
+ Exception.__init__(self)
+ self.address = address
+
class Gdb(object):
def __init__(self,
cmd=os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")):
self.child = pexpect.spawn(cmd)
- self.child.logfile = file("gdb.log", "w")
+ self.child.logfile = open("gdb.log", "w")
self.child.logfile.write("+ %s\n" % cmd)
self.wait()
self.command("set confirm off")
def wait(self):
"""Wait for prompt."""
- self.child.expect("\(gdb\)")
+ self.child.expect(r"\(gdb\)")
def command(self, command, timeout=-1):
self.child.sendline(command)
self.child.expect("\n", timeout=timeout)
- self.child.expect("\(gdb\)", timeout=timeout)
+ self.child.expect(r"\(gdb\)", timeout=timeout)
return self.child.before.strip()
def c(self, wait=True):
self.child.expect("Continuing")
def interrupt(self):
- self.child.send("\003");
- self.child.expect("\(gdb\)")
+ self.child.send("\003")
+ self.child.expect(r"\(gdb\)", timeout=60)
return self.child.before.strip()
def x(self, address, size='w'):
def p(self, obj):
output = self.command("p/x %s" % obj)
+ m = re.search("Cannot access memory at address (0x[0-9a-f]+)", output)
+ if m:
+ raise CannotAccess(int(m.group(1), 0))
value = int(output.split('=')[-1].strip(), 0)
return value
+ def p_string(self, obj):
+ output = self.command("p %s" % obj)
+ value = shlex.split(output.split('=')[-1].strip())[1]
+ return value
+
def stepi(self):
output = self.command("stepi")
- assert "Cannot" not in output
return output
def load(self):
projects / riscv-tests.git / blobdiff