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):
- """Compile a single .c file into a binary."""
- dst = os.path.splitext(args[0])[0]
+def compile(args, xlen=32): # pylint: disable=redefined-builtin
cc = os.path.expandvars("$RISCV/bin/riscv%d-unknown-elf-gcc" % xlen)
- cmd = [cc, "-g", "-o", dst]
+ cmd = [cc, "-g"]
for arg in args:
found = find_file(arg)
if found:
cmd = " ".join(cmd)
result = os.system(cmd)
assert result == 0, "%r failed" % cmd
- return dst
def unused_port():
# 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):
- """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"]
- cmd.append("-l") #<<<
+ if xlen == 32:
+ cmd += ["--isa", "RV32"]
if timeout:
cmd = ["timeout", str(timeout)] + cmd
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))
- self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
- stderr=logfile)
+ logfile.flush()
+ self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
+ stdout=logfile, stderr=logfile)
def __del__(self):
try:
def wait(self, *args, **kwargs):
return self.process.wait(*args, **kwargs)
+class VcsSim(object):
+ def __init__(self, simv=None, debug=False):
+ if simv:
+ cmd = shlex.split(simv)
+ else:
+ cmd = ["simv"]
+ cmd += ["+jtag_vpi_enable"]
+ if debug:
+ cmd[0] = cmd[0] + "-debug"
+ cmd += ["+vcdplusfile=output/gdbserver.vpd"]
+ logfile = open("simv.log", "w")
+ 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)
+ done = False
+ while not done:
+ line = listenfile.readline()
+ if not line:
+ time.sleep(1)
+ if "Listening on port 5555" in line:
+ done = True
+
+ def __del__(self):
+ try:
+ self.process.kill()
+ self.process.wait()
+ except OSError:
+ pass
+
class Openocd(object):
- def __init__(self, cmd=None, config=None, debug=True):
+ logname = "openocd.log"
+
+ def __init__(self, cmd=None, config=None, debug=False, otherProcess=None):
+
+ # keep handles to other processes -- don't let them be
+ # garbage collected yet.
+
+ self.otherProcess = otherProcess
if cmd:
cmd = shlex.split(cmd)
else:
cmd += ["-f", find_file(config)]
if debug:
cmd.append("-d")
- logfile = open("openocd.log", "w")
- self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
- stderr=logfile)
+ logfile = open(Openocd.logname, "w")
+ logfile.write("+ %s\n" % " ".join(cmd))
+ logfile.flush()
+ self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE,
+ stdout=logfile, stderr=logfile)
# TODO: Pick a random port
self.port = 3333
except OSError:
pass
+class CannotAccess(Exception):
+ def __init__(self, address):
+ Exception.__init__(self)
+ self.address = address
+
class Gdb(object):
- def __init__(self):
- path = os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")
- self.child = pexpect.spawn(path)
- self.child.logfile = file("gdb.log", "w")
+ def __init__(self,
+ cmd=os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")):
+ self.child = pexpect.spawn(cmd)
+ self.child.logfile = open("gdb.log", "w")
+ self.child.logfile.write("+ %s\n" % cmd)
self.wait()
+ self.command("set confirm off")
self.command("set width 0")
self.command("set height 0")
# Force consistency.
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):
- output = self.command("load")
+ output = self.command("load", timeout=60)
assert "failed" not in output
assert "Transfer rate" in output
assert "not defined" not in output
assert "Breakpoint" in output
return output
+
+ def hbreak(self, location):
+ output = self.command("hbreak %s" % location)
+ assert "not defined" not in output
+ assert "Hardware assisted breakpoint" in output
+ return output