[lldb] Disable TestCancelAttach for Windows host

[slydiman]

See #115618 for details.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Dmitry Vasilyev (slydiman)

Changes

See #115618 for details.

---

Full diff: https://github.com/llvm/llvm-project/pull/115619.diff

1 Files Affected:

• (modified) lldb/test/API/python_api/process/cancel_attach/TestCancelAttach.py (+5)

diff --git a/lldb/test/API/python_api/process/cancel_attach/TestCancelAttach.py b/lldb/test/API/python_api/process/cancel_attach/TestCancelAttach.py
index 9f643d50e58fc0..3be0a85d595002 100644
--- a/lldb/test/API/python_api/process/cancel_attach/TestCancelAttach.py
+++ b/lldb/test/API/python_api/process/cancel_attach/TestCancelAttach.py
@@ -14,6 +14,11 @@
 class AttachCancelTestCase(TestBase):
     NO_DEBUG_INFO_TESTCASE = True
 
+    @skipIf(
+        remote=True,
+        hostoslist=["windows"],
+        bugnumber="https://github.com/llvm/llvm-project/issues/115618",
+    )
     def test_scripted_implementation(self):
         """Test that cancelling a stuck "attach waitfor" works."""
         # First make an empty target for the attach:

[slydiman]

https://lab.llvm.org/staging/#/builders/197/builds/76

[labath]

The problem might have something to do with the fact that this somehow ends up in the windows platform code:

return Status::FromErrorString("attach by name is not supported");
lldb_private::Process::DoAttachToProcessWithName(const char * process_name, const lldb_private::ProcessAttachInfo & attach_info) at \llvm-project\lldb\include\lldb\Target\Process.h(1011)
lldb_private::Process::Attach(lldb_private::ProcessAttachInfo & attach_info) at \llvm-project\lldb\source\Target\Process.cpp(2983)
lldb_private::PlatformWindows::Attach(lldb_private::ProcessAttachInfo & attach_info, lldb_private::Debugger & debugger, lldb_private::Target * target, lldb_private::Status & error) at \llvm-project\lldb\source\Plugins\Platform\Windows\PlatformWindows.cpp(562)

I would not have expected that in a remote test suite run.

[slydiman]

@labath

The problem might have something to do with the fact that this somehow ends up in the windows platform code:

This callstack has no problem. It is the callstack on local Windows just for the comparison. I will remove this callstack from the issue description to avoid confusing.

The problem is the following:

Note process_sp = platform_sp->Attach(attach_info, GetDebugger(), this, error); at \llvm-project\lldb\source\Target\Target.cpp(3526)
runs gdbserver and puts vAttachWait command with LLDB-No-Such-Process to the event queue. But this packet never sent to the target (and no response). Something is wrong with listeners/broadcasters.