Files
clang-p2996/lldb/test/API/commands/platform/launchgdbserver/TestPlatformLaunchGDBServer.py
David Spickett dfbe3a79e2 [lldb] Check that qLaunchGDBServer packet does not return an error
While looking at https://github.com/llvm/llvm-project/issues/61955
I noticed that when we send qLaunchGDBServer we check that we got a response
but not what kind of response it was.

I think this was why the bug reporter saw:
(lldb) run
error: invalid host:port specification: '[192.168.64.2]'

The missing port is because we went down a path we only should have
chosen if the operation succeeded. Since we didn't check, we went ahead
with an empty port number.

To test this I've done the following:
* Make a temporary copy of lldb-server.
* Run that as a platform.
* Remove the copy.
* Attempt to create and run a target.

This fails because the running lldb-server will try to invoke itself
and it no longer exists.

Reviewed By: jasonmolenda

Differential Revision: https://reviews.llvm.org/D153513
2023-06-30 09:12:30 +00:00

59 lines
2.0 KiB
Python

""" Check that errors while handling qLaunchGDBServer are reported to the user.
Though this isn't a platform command in itself, the best way to test it is
from Python because we can juggle multiple processes more easily.
"""
import os
import socket
import shutil
import lldbgdbserverutils
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestPlatformProcessLaunchGDBServer(TestBase):
NO_DEBUG_INFO_TESTCASE = True
@skipIfRemote
# Windows doesn't use lldb-server and on Darwin we may be using debugserver.
@skipUnlessPlatform(["linux"])
@add_test_categories(["lldb-server"])
def test_platform_process_launch_gdb_server(self):
self.build()
hostname = socket.getaddrinfo("localhost", 0, proto=socket.IPPROTO_TCP)[0][4][0]
listen_url = "[%s]:0" % hostname
port_file = self.getBuildArtifact("port")
commandline_args = [
"platform",
"--listen",
listen_url,
"--socket-file",
port_file,
"--",
self.getBuildArtifact("a.out"),
"foo",
]
# Run lldb-server from a new location.
new_lldb_server = self.getBuildArtifact("lldb-server")
shutil.copy(lldbgdbserverutils.get_lldb_server_exe(), new_lldb_server)
self.spawnSubprocess(new_lldb_server, commandline_args)
socket_id = lldbutil.wait_for_file_on_target(self, port_file)
# Remove our new lldb-server so that when it tries to invoke itself as a
# gdbserver, it fails.
os.remove(new_lldb_server)
new_platform = lldb.SBPlatform("remote-" + self.getPlatform())
self.dbg.SetSelectedPlatform(new_platform)
connect_url = "connect://[%s]:%s" % (hostname, socket_id)
self.runCmd("platform connect %s" % connect_url)
self.runCmd("target create {}".format(self.getBuildArtifact("a.out")))
self.expect("run", substrs=["unable to launch a GDB server on"], error=True)