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"""
Test lldb-gdbserver operation
"""
import unittest2
import pexpect
import socket
import sys
from lldbtest import *
from lldbgdbserverutils import *
import logging
import os.path
class LldbGdbServerTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
port = 12345
_TIMEOUT_SECONDS = 5
_GDBREMOTE_KILL_PACKET = "$k#6b"
_LOGGING_LEVEL = logging.WARNING
# _LOGGING_LEVEL = logging.DEBUG
def setUp(self):
TestBase.setUp(self)
FORMAT = '%(asctime)-15s %(levelname)-8s %(message)s'
logging.basicConfig(format=FORMAT)
self.logger = logging.getLogger(__name__)
self.logger.setLevel(self._LOGGING_LEVEL)
def init_llgs_test(self):
self.debug_monitor_exe = get_lldb_gdbserver_exe()
if not self.debug_monitor_exe:
self.skipTest("lldb_gdbserver exe not found")
def init_debugserver_test(self):
self.debug_monitor_exe = get_debugserver_exe()
if not self.debug_monitor_exe:
self.skipTest("debugserver exe not found")
def create_socket(self):
sock = socket.socket()
logger = self.logger
def shutdown_socket():
if sock:
try:
# send the kill packet so lldb-gdbserver shuts down gracefully
sock.sendall(LldbGdbServerTestCase._GDBREMOTE_KILL_PACKET)
except:
logger.warning("failed to send kill packet to debug monitor: {}; ignoring".format(sys.exc_info()[0]))
try:
sock.close()
except:
logger.warning("failed to close socket to debug monitor: {}; ignoring".format(sys.exc_info()[0]))
self.addTearDownHook(shutdown_socket)
sock.connect(('localhost', self.port))
return sock
def start_server(self):
# start the server
server = pexpect.spawn("{} localhost:{}".format(self.debug_monitor_exe, self.port))
# Turn on logging for what the child sends back.
if self.TraceOn():
server.logfile_read = sys.stdout
# Schedule debug monitor to be shut down during teardown.
logger = self.logger
def shutdown_debug_monitor():
try:
server.close()
except:
logger.warning("failed to close pexpect server for debug monitor: {}; ignoring".format(sys.exc_info()[0]))
self.addTearDownHook(shutdown_debug_monitor)
# Wait until we receive the server ready message before continuing.
server.expect_exact('Listening to port {} for a connection from localhost'.format(self.port))
# Create a socket to talk to the server
self.sock = self.create_socket()
return server
def create_no_ack_remote_stream(self):
return [
"lldb-gdbserver < 19> read packet: +",
"lldb-gdbserver < 19> read packet: $QStartNoAckMode#b0",
"lldb-gdbserver < 1> send packet: +",
"lldb-gdbserver < 6> send packet: $OK#9a",
"lldb-gdbserver < 1> read packet: +"]
@debugserver_test
def test_exe_starts_debugserver(self):
self.init_debugserver_test()
server = self.start_server()
@llgs_test
def test_exe_starts_llgs(self):
self.init_llgs_test()
server = self.start_server()
def start_no_ack_mode(self):
server = self.start_server()
self.assertIsNotNone(server)
log_lines = self.create_no_ack_remote_stream()
expect_lldb_gdbserver_replay(self, self.sock, log_lines, True,
self._TIMEOUT_SECONDS, self.logger)
@debugserver_test
def test_start_no_ack_mode_debugserver(self):
self.init_debugserver_test()
self.start_no_ack_mode()
@llgs_test
def test_start_no_ack_mode_llgs(self):
self.init_llgs_test()
self.start_no_ack_mode()
def thread_suffix_supported(self):
server = self.start_server()
self.assertIsNotNone(server)
log_lines = self.create_no_ack_remote_stream()
log_lines.extend([
"lldb-gdbserver < 26> read packet: $QThreadSuffixSupported#e4",
"lldb-gdbserver < 6> send packet: $OK#9a"])
expect_lldb_gdbserver_replay(self, self.sock, log_lines, True,
self._TIMEOUT_SECONDS, self.logger)
@debugserver_test
def test_thread_suffix_supported_debugserver(self):
self.init_debugserver_test()
self.thread_suffix_supported()
@llgs_test
@unittest2.expectedFailure()
def test_thread_suffix_supported_llgs(self):
self.init_llgs_test()
self.thread_suffix_supported()
def list_threads_in_stop_reply_supported(self):
server = self.start_server()
self.assertIsNotNone(server)
log_lines = self.create_no_ack_remote_stream()
log_lines.extend([
"lldb-gdbserver < 27> read packet: $QListThreadsInStopReply#21",
"lldb-gdbserver < 6> send packet: $OK#9a"])
expect_lldb_gdbserver_replay(self, self.sock, log_lines, True,
self._TIMEOUT_SECONDS, self.logger)
@debugserver_test
def test_list_threads_in_stop_reply_supported_debugserver(self):
self.init_debugserver_test()
self.list_threads_in_stop_reply_supported()
@llgs_test
@unittest2.expectedFailure()
def test_list_threads_in_stop_reply_supported_llgs(self):
self.init_llgs_test()
self.list_threads_in_stop_reply_supported()
def start_inferior(self):
server = self.start_server()
self.assertIsNotNone(server)
# TODO grab the build output directory rather than current directory.
inferior_exe_name = os.path.abspath('a.out')
inferior_exe_name_hex = gdbremote_hex_encode_string(inferior_exe_name)
log_lines = self.create_no_ack_remote_stream()
log_lines.extend([
"lldb-gdbserver < 000> read packet: {}".format(
gdbremote_packet_encode_string(
"A{},0,{}".format(len(inferior_exe_name_hex), inferior_exe_name_hex))),
"lldb-gdbserver < 6> send packet: $OK#9a"])
expect_lldb_gdbserver_replay(self, self.sock, log_lines, True,
self._TIMEOUT_SECONDS, self.logger)
@debugserver_test
@dsym_test
def test_start_inferior_debugserver_dsym(self):
self.init_debugserver_test()
self.buildDsym()
self.start_inferior()
@llgs_test
@dwarf_test
def test_start_inferior_llgs_dwarf(self):
self.init_llgs_test()
self.buildDwarf()
self.start_inferior()
if __name__ == '__main__':
unittest2.main()
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