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):
+ def __init__(self, server_cmd=None, config=None, debug=False, timeout=60):
if server_cmd:
cmd = shlex.split(server_cmd)
else:
if debug:
cmd.append("-d")
- logfile = open(Openocd.logname, "w")
+ logfile = Openocd.logfile
logfile.write("+ %s\n" % " ".join(cmd))
logfile.flush()
self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
stdout=logfile, stderr=logfile)
- # 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()
- m = re.search(r"Listening on port (\d+) for gdb connections", log)
- if m:
- self.port = int(m.group(1))
- break
-
- if not self.process.poll() is None:
- header("OpenOCD log")
- sys.stdout.write(log)
- raise Exception(
- "OpenOCD exited before completing riscv_examine()")
- if not messaged and time.time() - start > 1:
- messaged = True
- print "Waiting for OpenOCD to start..."
- if time.time() - start > 60:
- raise Exception("ERROR: Timed out waiting for OpenOCD to "
- "listen for gdb")
+ try:
+ # 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()
+ m = re.search(r"Listening on port (\d+) for gdb connections",
+ log)
+ if m:
+ self.port = int(m.group(1))
+ 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 start..."
+ if (time.time() - start) > timeout:
+ raise Exception("ERROR: Timed out waiting for OpenOCD to "
+ "listen for gdb")
+
+ except Exception:
+ header("OpenOCD log")
+ sys.stdout.write(log)
+ raise
def __del__(self):
try:
class Gdb(object):
logfile = tempfile.NamedTemporaryFile(prefix="gdb", suffix=".log")
logname = logfile.name
+ print "GDB Temporary Log File: %s" % logname
def __init__(self,
cmd=os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")):
self.child = pexpect.spawn(cmd)
- self.child.logfile = open(self.logname, "w")
- self.child.logfile.write("+ %s\n" % cmd)
+ Gdb.logfile.write("+ %s\n" % cmd)
self.wait()
self.command("set confirm off")
self.command("set width 0")