forked from OSchip/llvm-project
749 lines
20 KiB
Plaintext
749 lines
20 KiB
Plaintext
%wrapper %{
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class PyErr_Cleaner
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{
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public:
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PyErr_Cleaner(bool print=false) :
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m_print(print)
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{
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}
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~PyErr_Cleaner()
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{
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if (PyErr_Occurred())
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{
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if(m_print)
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PyErr_Print();
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PyErr_Clear();
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}
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}
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private:
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bool m_print;
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};
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// resolve a dotted Python name in the form
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// foo.bar.baz.Foobar to an actual Python object
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// if pmodule is NULL, the __main__ module will be used
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// as the starting point for the search
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static PyObject*
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ResolvePythonName(const char* name,
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PyObject* pmodule = NULL)
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{
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if (!name)
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return pmodule;
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PyErr_Cleaner pyerr_cleanup(true); // show Python errors
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PyObject* main_dict;
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if (!pmodule)
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{
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pmodule = PyImport_AddModule ("__main__");
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if (!pmodule)
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return NULL;
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}
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if (!PyDict_Check(pmodule))
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{
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main_dict = PyModule_GetDict (pmodule);
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if (!main_dict)
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return NULL;
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}
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else
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main_dict = pmodule;
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const char* dot_pos = ::strchr(name, '.');
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PyObject *dest_object;
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PyObject *key, *value;
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Py_ssize_t pos = 0;
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if (!dot_pos)
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{
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dest_object = NULL;
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while (PyDict_Next (main_dict, &pos, &key, &value))
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{
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// We have stolen references to the key and value objects in the dictionary; we need to increment
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// them now so that Python's garbage collector doesn't collect them out from under us.
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Py_INCREF (key);
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Py_INCREF (value);
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if (strcmp (PyString_AsString (key), name) == 0)
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{
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dest_object = value;
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break;
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}
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}
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if (!dest_object || dest_object == Py_None)
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return NULL;
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return dest_object;
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}
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else
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{
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size_t len = dot_pos - name;
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std::string piece(name,len);
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pmodule = ResolvePythonName(piece.c_str(), main_dict);
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if (!pmodule)
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return NULL;
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name = dot_pos+1;
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return ResolvePythonName(dot_pos+1,pmodule); // tail recursion.. should be optimized by the compiler
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}
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}
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static PyObject*
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FindSessionDictionary(const char *session_dictionary_name)
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{
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return ResolvePythonName(session_dictionary_name, NULL);
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}
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// This function is called by lldb_private::ScriptInterpreterPython::BreakpointCallbackFunction(...)
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// and is used when a script command is attached to a breakpoint for execution.
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SWIGEXPORT bool
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LLDBSwigPythonBreakpointCallbackFunction
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(
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const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::StackFrameSP& frame_sp,
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const lldb::BreakpointLocationSP& bp_loc_sp
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)
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{
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lldb::SBFrame sb_frame (frame_sp);
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lldb::SBBreakpointLocation sb_bp_loc(bp_loc_sp);
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bool stop_at_breakpoint = true;
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PyObject *Frame_PyObj = SWIG_NewPointerObj((void *) &sb_frame, SWIGTYPE_p_lldb__SBFrame, 0);
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PyObject *Bp_Loc_PyObj = SWIG_NewPointerObj ((void *) &sb_bp_loc, SWIGTYPE_p_lldb__SBBreakpointLocation, 0);
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if (Frame_PyObj == NULL || Bp_Loc_PyObj == NULL)
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return stop_at_breakpoint;
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if (!python_function_name || !session_dictionary_name)
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return stop_at_breakpoint;
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PyObject *session_dict, *pfunc;
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PyObject *pargs, *pvalue;
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session_dict = FindSessionDictionary (session_dictionary_name);
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if (session_dict != NULL)
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{
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pfunc = ResolvePythonName (python_function_name, session_dict);
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if (pfunc != NULL)
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{
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// Set up the arguments and call the function.
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if (PyCallable_Check (pfunc))
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{
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pargs = PyTuple_New (3);
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if (pargs == NULL)
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{
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if (PyErr_Occurred())
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PyErr_Clear();
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return stop_at_breakpoint;
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}
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PyTuple_SetItem (pargs, 0, Frame_PyObj); // This "steals" a reference to Frame_PyObj
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PyTuple_SetItem (pargs, 1, Bp_Loc_PyObj); // This "steals" a reference to Bp_Loc_PyObj
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PyTuple_SetItem (pargs, 2, session_dict); // This "steals" a reference to session_dict
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pvalue = PyObject_CallObject (pfunc, pargs);
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Py_DECREF (pargs);
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if (pvalue != NULL)
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{
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Py_DECREF (pvalue);
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}
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else if (PyErr_Occurred ())
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{
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PyErr_Clear();
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}
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Py_INCREF (session_dict);
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}
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else if (PyErr_Occurred())
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{
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PyErr_Clear();
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}
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}
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else if (PyErr_Occurred())
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{
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PyErr_Clear();
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}
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}
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else if (PyErr_Occurred ())
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{
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PyErr_Clear ();
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}
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return stop_at_breakpoint;
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}
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SWIGEXPORT bool
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LLDBSwigPythonCallTypeScript
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(
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const char *python_function_name,
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const void *session_dictionary,
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const lldb::ValueObjectSP& valobj_sp,
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void** pyfunct_wrapper,
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std::string& retval
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)
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{
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lldb::SBValue sb_value (valobj_sp);
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PyObject *ValObj_PyObj = SWIG_NewPointerObj((void *) &sb_value, SWIGTYPE_p_lldb__SBValue, 0);
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if (ValObj_PyObj == NULL)
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return false;
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if (!python_function_name || !session_dictionary)
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return false;
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PyObject *session_dict = (PyObject*)session_dictionary, *pfunc = NULL, *pargs = NULL, *pvalue = NULL;
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if (pyfunct_wrapper && *pyfunct_wrapper && PyFunction_Check (*pyfunct_wrapper))
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{
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pfunc = (PyObject*)(*pyfunct_wrapper);
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if (pfunc->ob_refcnt == 1)
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{
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Py_XDECREF(pfunc);
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pfunc = NULL;
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}
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}
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if (PyDict_Check(session_dict))
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{
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PyErr_Cleaner pyerr_cleanup(true); // show Python errors
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if (!pfunc)
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{
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pfunc = ResolvePythonName (python_function_name, session_dict);
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if (!pfunc || !PyFunction_Check (pfunc))
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return false;
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else
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{
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if (pyfunct_wrapper)
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*pyfunct_wrapper = pfunc;
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}
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}
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/*else
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printf("caching works!!!!\n");*/
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pargs = PyTuple_Pack(2, ValObj_PyObj, session_dict);
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if (pargs == NULL)
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return false;
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pvalue = PyObject_CallObject (pfunc, pargs);
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Py_DECREF (pargs);
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if (pvalue != NULL && pvalue != Py_None && PyString_Check(pvalue))
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retval.assign(PyString_AsString(pvalue));
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Py_XDECREF (pvalue);
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Py_INCREF (session_dict);
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}
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return true;
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}
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SWIGEXPORT void*
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LLDBSwigPythonCreateSyntheticProvider
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(
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const std::string python_class_name,
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const char *session_dictionary_name,
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const lldb::ValueObjectSP& valobj_sp
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)
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{
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PyObject* retval = NULL;
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if (python_class_name.empty() || !session_dictionary_name)
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Py_RETURN_NONE;
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// I do not want the SBValue to be deallocated when going out of scope because python
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// has ownership of it and will manage memory for this object by itself
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lldb::SBValue *valobj_sb = new lldb::SBValue(valobj_sp);
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PyObject *ValObj_PyObj = SWIG_NewPointerObj((void *)valobj_sb, SWIGTYPE_p_lldb__SBValue, 0);
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if (ValObj_PyObj == NULL)
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Py_RETURN_NONE;
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const char* python_function_name = python_class_name.c_str();
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PyObject *session_dict, *pfunc;
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PyObject *pvalue;
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session_dict = FindSessionDictionary (session_dictionary_name);
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if (session_dict != NULL)
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{
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pfunc = ResolvePythonName (python_function_name, session_dict);
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if (pfunc != NULL)
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{
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// Set up the arguments and call the function.
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if (PyCallable_Check (pfunc))
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{
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PyObject *argList = Py_BuildValue("SS", ValObj_PyObj, session_dict);
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if (PyErr_Occurred ())
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{
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PyErr_Print();
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PyErr_Clear();
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return retval;
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}
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if (argList == NULL)
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{
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return retval;
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}
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Py_INCREF(ValObj_PyObj);
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pvalue = PyObject_CallObject(pfunc, argList);
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Py_DECREF(argList);
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if (pvalue != NULL)
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{
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if (pvalue != Py_None)
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retval = pvalue;
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else
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{
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retval = Py_None;
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Py_INCREF(retval);
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}
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}
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else if (PyErr_Occurred ())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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Py_INCREF (session_dict);
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}
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else if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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}
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else if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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}
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else if (PyErr_Occurred ())
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{
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PyErr_Print();
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PyErr_Clear ();
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}
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if (retval)
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return retval;
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else
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Py_RETURN_NONE;
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}
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/*
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these four calls below are meant to support
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Python-based synthetic children providers
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they essentially mimic the four pure virtual
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method calls provided by the frontend class
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*/
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SWIGEXPORT uint32_t
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LLDBSwigPython_CalculateNumChildren
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(
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PyObject *implementor
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)
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{
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static char callee_name[] = "num_children";
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if (implementor == NULL || implementor == Py_None)
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return 0;
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PyObject* py_return = PyObject_CallMethod(implementor, callee_name, NULL);
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if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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if (py_return == NULL || py_return == Py_None)
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{
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Py_XDECREF(py_return);
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return UINT32_MAX;
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}
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long retval = PyInt_AsLong(py_return);
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Py_DECREF(py_return);
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if (retval >= 0)
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return (uint32_t)retval;
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if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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return 0;
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}
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SWIGEXPORT PyObject*
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LLDBSwigPython_GetChildAtIndex
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(
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PyObject *implementor,
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uint32_t idx
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)
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{
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static char callee_name[] = "get_child_at_index";
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static char param_format[] = "i";
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if (implementor == NULL || implementor == Py_None)
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return NULL;
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PyObject* py_return = PyObject_CallMethod(implementor, callee_name, param_format, idx);
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if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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if (py_return == NULL || py_return == Py_None)
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{
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Py_XDECREF(py_return);
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return NULL;
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}
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lldb::SBValue* sbvalue_ptr = NULL;
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if (SWIG_ConvertPtr(py_return, (void**)&sbvalue_ptr, SWIGTYPE_p_lldb__SBValue, 0) == -1)
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{
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Py_DECREF(py_return);
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return NULL;
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}
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if (sbvalue_ptr == NULL)
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return NULL;
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return py_return;
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}
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SWIGEXPORT int
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LLDBSwigPython_GetIndexOfChildWithName
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(
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PyObject *implementor,
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const char* child_name
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)
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{
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static char callee_name[] = "get_child_index";
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static char param_format[] = "s";
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if (implementor == NULL || implementor == Py_None)
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return 0;
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PyObject* py_return = PyObject_CallMethod(implementor, callee_name, param_format, child_name);
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if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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if (py_return == NULL || py_return == Py_None)
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{
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Py_XDECREF(py_return);
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return UINT32_MAX;
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}
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long retval = PyInt_AsLong(py_return);
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Py_DECREF(py_return);
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if (retval >= 0)
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return (uint32_t)retval;
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if (PyErr_Occurred())
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{
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PyErr_Print();
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PyErr_Clear();
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}
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return 0;
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}
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SWIGEXPORT bool
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LLDBSwigPython_UpdateSynthProviderInstance
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(
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PyObject *implementor
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)
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{
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bool ret_val = false;
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static char callee_name[] = "update";
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if (implementor == NULL || implementor == Py_None)
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return ret_val;
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// all this code is here because update is optional, so we don't want to bother trying to call it unless it's been def:ined for us
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// other synth provider calls are mandatory, so we want to fail in a very obvious way if they are missing!
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PyObject* pmeth = PyObject_GetAttrString(implementor, callee_name);
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if (PyErr_Occurred())
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{
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PyErr_Clear();
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}
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if (pmeth == NULL || pmeth == Py_None)
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{
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Py_XDECREF(pmeth);
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return ret_val;
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}
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if (PyCallable_Check(pmeth) == 0)
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{
|
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if (PyErr_Occurred())
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{
|
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PyErr_Clear();
|
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}
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Py_XDECREF(pmeth);
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return ret_val;
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}
|
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|
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if (PyErr_Occurred())
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{
|
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PyErr_Clear();
|
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}
|
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|
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Py_XDECREF(pmeth);
|
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|
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// right now we know this function exists and is callable..
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PyObject* py_return = PyObject_CallMethod(implementor, callee_name, NULL);
|
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|
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// if it fails, print the error but otherwise go on
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if (PyErr_Occurred())
|
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{
|
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PyErr_Print();
|
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PyErr_Clear();
|
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}
|
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|
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if (py_return == Py_True)
|
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ret_val = true;
|
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|
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Py_XDECREF(py_return);
|
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|
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return ret_val;
|
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|
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}
|
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|
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SWIGEXPORT void*
|
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LLDBSWIGPython_CastPyObjectToSBValue
|
|
(
|
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PyObject* data
|
|
)
|
|
{
|
|
lldb::SBValue* sb_ptr = NULL;
|
|
|
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int valid_cast = SWIG_ConvertPtr(data, (void**)&sb_ptr, SWIGTYPE_p_lldb__SBValue, 0);
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|
|
if (valid_cast == -1)
|
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return NULL;
|
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|
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return sb_ptr;
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|
}
|
|
|
|
// Currently, SBCommandReturnObjectReleaser wraps an std::auto_ptr to an
|
|
// lldb_private::CommandReturnObject. This means that the destructor for the
|
|
// SB object will deallocate its contained CommandReturnObject. Because that
|
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// object is used as the real return object for Python-based commands, we want
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// it to stay around. Thus, we release the auto_ptr before returning from
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// LLDBSwigPythonCallCommand, and to guarantee that the release will occur no
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// matter how we exit from the function, we have a releaser object whose
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// destructor does the right thing for us
|
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class SBCommandReturnObjectReleaser
|
|
{
|
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public:
|
|
SBCommandReturnObjectReleaser (lldb::SBCommandReturnObject &obj) :
|
|
m_command_return_object_ref (obj)
|
|
{
|
|
}
|
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|
|
~SBCommandReturnObjectReleaser ()
|
|
{
|
|
m_command_return_object_ref.Release();
|
|
}
|
|
private:
|
|
lldb::SBCommandReturnObject &m_command_return_object_ref;
|
|
};
|
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|
|
SWIGEXPORT bool
|
|
LLDBSwigPythonCallCommand
|
|
(
|
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const char *python_function_name,
|
|
const char *session_dictionary_name,
|
|
lldb::DebuggerSP& debugger,
|
|
const char* args,
|
|
std::string& err_msg,
|
|
lldb_private::CommandReturnObject& cmd_retobj
|
|
)
|
|
{
|
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|
|
lldb::SBCommandReturnObject cmd_retobj_sb(&cmd_retobj);
|
|
SBCommandReturnObjectReleaser cmd_retobj_sb_releaser(cmd_retobj_sb);
|
|
lldb::SBDebugger debugger_sb(debugger);
|
|
|
|
bool retval = false;
|
|
|
|
PyObject *DebuggerObj_PyObj = SWIG_NewPointerObj((void *) &debugger_sb, SWIGTYPE_p_lldb__SBDebugger, 0);
|
|
PyObject *CmdRetObj_PyObj = SWIG_NewPointerObj((void *) &cmd_retobj_sb, SWIGTYPE_p_lldb__SBCommandReturnObject, 0);
|
|
|
|
if (DebuggerObj_PyObj == NULL)
|
|
return retval;
|
|
|
|
if (CmdRetObj_PyObj == NULL)
|
|
return retval;
|
|
|
|
if (!python_function_name || !session_dictionary_name)
|
|
return retval;
|
|
|
|
PyObject *session_dict, *pfunc;
|
|
PyObject *pargs, *pvalue;
|
|
|
|
session_dict = FindSessionDictionary (session_dictionary_name);
|
|
if (session_dict != NULL)
|
|
{
|
|
pfunc = ResolvePythonName (python_function_name, session_dict);
|
|
if (pfunc != NULL)
|
|
{
|
|
// Set up the arguments and call the function.
|
|
|
|
if (PyCallable_Check (pfunc))
|
|
{
|
|
pargs = PyTuple_New (4);
|
|
if (pargs == NULL)
|
|
{
|
|
if (PyErr_Occurred())
|
|
PyErr_Clear();
|
|
return retval;
|
|
}
|
|
|
|
PyTuple_SetItem (pargs, 0, DebuggerObj_PyObj); // This "steals" a reference to DebuggerObj_PyObj
|
|
PyTuple_SetItem (pargs, 1, PyString_FromString(args));
|
|
PyTuple_SetItem (pargs, 2, CmdRetObj_PyObj); // This "steals" a reference to CmdRetObj_PyObj
|
|
PyTuple_SetItem (pargs, 3, session_dict); // This "steals" a reference to session_dict
|
|
pvalue = PyObject_CallObject (pfunc, pargs);
|
|
Py_DECREF (pargs);
|
|
|
|
if (pvalue != NULL)
|
|
{
|
|
if (pvalue == Py_None) // no error
|
|
{
|
|
err_msg.clear();
|
|
retval = true;
|
|
}
|
|
else
|
|
{
|
|
// return value is an error string
|
|
if (PyString_CheckExact(pvalue))
|
|
err_msg.assign(PyString_AsString(pvalue));
|
|
retval = false;
|
|
}
|
|
Py_DECREF (pvalue);
|
|
}
|
|
else if (PyErr_Occurred ())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
Py_INCREF (session_dict);
|
|
}
|
|
else if (PyErr_Occurred())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
}
|
|
else if (PyErr_Occurred())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
}
|
|
else if (PyErr_Occurred ())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear ();
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
SWIGEXPORT bool
|
|
LLDBSwigPythonCallModuleInit
|
|
(
|
|
const std::string python_module_name,
|
|
const char *session_dictionary_name,
|
|
lldb::DebuggerSP& debugger
|
|
)
|
|
{
|
|
|
|
lldb::SBDebugger debugger_sb(debugger);
|
|
|
|
bool retval = false;
|
|
|
|
PyObject *DebuggerObj_PyObj = SWIG_NewPointerObj((void *) &debugger_sb, SWIGTYPE_p_lldb__SBDebugger, 0);
|
|
|
|
if (DebuggerObj_PyObj == NULL)
|
|
return retval;
|
|
|
|
if (!(python_module_name.length()) || !session_dictionary_name)
|
|
return retval;
|
|
|
|
PyObject *session_dict, *pfunc;
|
|
PyObject *pargs, *pvalue;
|
|
|
|
session_dict = FindSessionDictionary (session_dictionary_name);
|
|
|
|
std::string python_function_name_string = python_module_name + (".__lldb_init_module");
|
|
const char* python_function_name = python_function_name_string.c_str();
|
|
|
|
if (session_dict != NULL)
|
|
{
|
|
pfunc = ResolvePythonName (python_function_name, session_dict);
|
|
|
|
if (PyErr_Occurred()) // this might not exist.. let's make sure we handle that
|
|
{
|
|
PyErr_Clear();
|
|
return true;
|
|
}
|
|
|
|
if (pfunc == NULL)
|
|
return true;
|
|
else
|
|
{
|
|
// Set up the arguments and call the function.
|
|
|
|
if (PyCallable_Check (pfunc))
|
|
{
|
|
pargs = PyTuple_New (2);
|
|
if (pargs == NULL)
|
|
{
|
|
if (PyErr_Occurred())
|
|
PyErr_Clear();
|
|
return retval;
|
|
}
|
|
|
|
PyTuple_SetItem (pargs, 0, DebuggerObj_PyObj); // This "steals" a reference to DebuggerObj_PyObj
|
|
PyTuple_SetItem (pargs, 1, session_dict); // This "steals" a reference to session_dict
|
|
pvalue = PyObject_CallObject (pfunc, pargs);
|
|
Py_DECREF (pargs);
|
|
|
|
if (PyErr_Occurred ())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
else
|
|
{
|
|
retval = true;
|
|
Py_XDECREF (pvalue);
|
|
}
|
|
Py_INCREF (session_dict);
|
|
}
|
|
else if (PyErr_Occurred())
|
|
{
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
}
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
%}
|