[lldb] Reimplment PyRun_SimpleString using the Python stable C API (#151777)

Reimplment `PyRun_SimpleString` using the Python stable C API and the
`RunString` helper.

Part of https://github.com/llvm/llvm-project/issues/151617

1 files changed, 16 insertions, 0 deletions

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
index 9fe282415459..42dc579206b4 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
@@ -1492,6 +1492,22 @@ PyObject *RunString(const char *str, int start, PyObject *globals,
 
   return result;
 }
+
+int RunSimpleString(const char *str) {
+  PyObject *main_module = PyImport_AddModule("__main__");
+  if (!main_module)
+    return -1;
+
+  PyObject *globals = PyModule_GetDict(main_module);
+  if (!globals)
+    return -1;
+
+  PyObject *result = RunString(str, Py_file_input, globals, globals);
+  if (!result)
+    return -1;
+
+  return 0;
+}
 } // namespace python
 } // namespace lldb_private