[lldb] Add OS plugin property for reporting all threads (#123145)

Currently, an LLDB target option controls whether plugins report all
threads. However, it seems natural for this knowledge could come from
the plugin itself. To support this, this commits adds a virtual method
to the plugin base class, making the Python OS query the target option
to preserve existing behavior.

1 files changed, 10 insertions, 0 deletions

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
index c3379e774a0b..d8b2ea984fd8 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
@@ -82,6 +82,16 @@ OperatingSystemPythonInterface::GetRegisterContextForTID(lldb::tid_t tid) {
   return obj->GetAsString()->GetValue().str();
 }
 
+std::optional<bool> OperatingSystemPythonInterface::DoesPluginReportAllThreads() {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("does_plugin_report_all_threads", error);
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
+    return {};
+
+  return obj->GetAsBoolean()->GetValue();
+}
+
 void OperatingSystemPythonInterface::Initialize() {
   const std::vector<llvm::StringRef> ci_usages = {
       "settings set target.process.python-os-plugin-path <script-path>",