================
@@ -0,0 +1,105 @@
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+from lldbsuite.test.gdbclientutils import *
+from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase
+
+# Test that lldb will cache when a register is unavailable,
+# and not request the value multiple times at a stop event.
+#
+# Also test that a stop reply packet which indicates that
+# the register cannot be read currently will keep lldb from
+# trying to read it again.
+
+
+class TestUnavailableRegisters(GDBRemoteTestBase):
+ @skipIfXmlSupportMissing
+ @skipIfLLVMTargetMissing("AArch64")
+ def test(self):
+ class MyResponder(MockGDBServerResponder):
+ def __init__(self):
+ super().__init__()
+ self.initial_x2_read = True
+
+ def haltReason(self):
+ return
"T02thread:1ff0d;threads:1ff0d;thread-pcs:000000010001bc00;00:0100000000000000;01:;03:0500000000000000;04:00bc010001000000;"
+
+ def threadStopInfo(self, threadnum):
+ return
"T02thread:1ff0d;threads:1ff0d;thread-pcs:000000010001bc00;00:0100000000000000;01:;03:0500000000000000;04:00bc010001000000;"
----------------
DavidSpickett wrote:
These strings look identical, if they are:
```
def haltReason(self):
return "....
def threadStopInfo(self):
return self.haltReason()
```
https://github.com/llvm/llvm-project/pull/193894
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