This revision was automatically updated to reflect the committed changes.
Closed by commit rG7406d236d873: [lldb/python] Fix (some) dangling pointers in
our glue code (authored by labath).
Changed prior to commit:
https://reviews.llvm.org/D115925?vs=395072&id=395389#toc
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D115925/new/
https://reviews.llvm.org/D115925
Files:
lldb/bindings/python/python-swigsafecast.swig
lldb/bindings/python/python-wrapper.swig
lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
lldb/test/API/commands/command/script/TestCommandScript.py
lldb/test/API/commands/command/script/persistence.py
lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
Index: lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
===================================================================
--- lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
+++ lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
@@ -88,7 +88,7 @@
void *lldb_private::LLDBSwigPythonCreateCommandObject(
const char *python_class_name, const char *session_dictionary_name,
- const lldb::DebuggerSP debugger_sp) {
+ lldb::DebuggerSP debugger_sp) {
return nullptr;
}
@@ -172,14 +172,14 @@
bool lldb_private::LLDBSwigPythonCallCommand(
const char *python_function_name, const char *session_dictionary_name,
- lldb::DebuggerSP &debugger, const char *args,
+ lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp) {
return false;
}
bool lldb_private::LLDBSwigPythonCallCommandObject(
- PyObject *implementor, lldb::DebuggerSP &debugger, const char *args,
+ PyObject *implementor, lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp) {
return false;
@@ -187,7 +187,7 @@
bool lldb_private::LLDBSwigPythonCallModuleInit(
const char *python_module_name, const char *session_dictionary_name,
- lldb::DebuggerSP &debugger) {
+ lldb::DebuggerSP debugger) {
return false;
}
@@ -228,10 +228,10 @@
return false;
}
-bool lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
+llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
const char *python_function_name, const char *session_dictionary_name,
- lldb::ThreadSP &thread, std::string &output) {
- return false;
+ lldb::ThreadSP thread) {
+ return llvm::None;
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordTarget(
@@ -240,10 +240,10 @@
return false;
}
-bool lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
+llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
const char *python_function_name, const char *session_dictionary_name,
- lldb::StackFrameSP &frame, std::string &output) {
- return false;
+ lldb::StackFrameSP frame) {
+ return llvm::None;
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordValue(
Index: lldb/test/API/commands/command/script/persistence.py
===================================================================
--- /dev/null
+++ lldb/test/API/commands/command/script/persistence.py
@@ -0,0 +1,9 @@
+import lldb
+
+debugger_copy = None
+
+def save_debugger(debugger, command, context, result, internal_dict):
+ global debugger_copy
+ debugger_copy = debugger
+ result.AppendMessage(str(debugger))
+ result.SetStatus(lldb.eReturnStatusSuccessFinishResult)
Index: lldb/test/API/commands/command/script/TestCommandScript.py
===================================================================
--- lldb/test/API/commands/command/script/TestCommandScript.py
+++ lldb/test/API/commands/command/script/TestCommandScript.py
@@ -165,3 +165,9 @@
self.runCmd('command script add -f bug11569 bug11569')
# This should not crash.
self.runCmd('bug11569', check=False)
+
+ def test_persistence(self):
+ self.runCmd("command script import persistence.py")
+ self.runCmd("command script add -f persistence.save_debugger save_debugger")
+ self.expect("save_debugger", substrs=[str(self.dbg)])
+ self.expect("script str(persistence.debugger_copy)", substrs=[str(self.dbg)])
Index: lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -2521,7 +2521,6 @@
bool ScriptInterpreterPythonImpl::RunScriptFormatKeyword(
const char *impl_function, Thread *thread, std::string &output,
Status &error) {
- bool ret_val;
if (!thread) {
error.SetErrorString("no thread");
return false;
@@ -2531,16 +2530,16 @@
return false;
}
- {
- ThreadSP thread_sp(thread->shared_from_this());
- Locker py_lock(this,
- Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
- ret_val = LLDBSWIGPythonRunScriptKeywordThread(
- impl_function, m_dictionary_name.c_str(), thread_sp, output);
- if (!ret_val)
- error.SetErrorString("python script evaluation failed");
+ Locker py_lock(this,
+ Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+ if (llvm::Optional<std::string> result = LLDBSWIGPythonRunScriptKeywordThread(
+ impl_function, m_dictionary_name.c_str(),
+ thread->shared_from_this())) {
+ output = std::move(*result);
+ return true;
}
- return ret_val;
+ error.SetErrorString("python script evaluation failed");
+ return false;
}
bool ScriptInterpreterPythonImpl::RunScriptFormatKeyword(
@@ -2571,7 +2570,6 @@
bool ScriptInterpreterPythonImpl::RunScriptFormatKeyword(
const char *impl_function, StackFrame *frame, std::string &output,
Status &error) {
- bool ret_val;
if (!frame) {
error.SetErrorString("no frame");
return false;
@@ -2581,16 +2579,16 @@
return false;
}
- {
- StackFrameSP frame_sp(frame->shared_from_this());
- Locker py_lock(this,
- Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
- ret_val = LLDBSWIGPythonRunScriptKeywordFrame(
- impl_function, m_dictionary_name.c_str(), frame_sp, output);
- if (!ret_val)
- error.SetErrorString("python script evaluation failed");
+ Locker py_lock(this,
+ Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
+ if (llvm::Optional<std::string> result = LLDBSWIGPythonRunScriptKeywordFrame(
+ impl_function, m_dictionary_name.c_str(),
+ frame->shared_from_this())) {
+ output = std::move(*result);
+ return true;
}
- return ret_val;
+ error.SetErrorString("python script evaluation failed");
+ return false;
}
bool ScriptInterpreterPythonImpl::RunScriptFormatKeyword(
@@ -2655,7 +2653,6 @@
}
ScriptInterpreterIORedirect &io_redirect = **io_redirect_or_error;
- lldb::DebuggerSP debugger_sp = m_debugger.shared_from_this();
// Before executing Python code, lock the GIL.
Locker py_lock(this,
@@ -2792,7 +2789,8 @@
// if we are here, everything worked
// call __lldb_init_module(debugger,dict)
if (!LLDBSwigPythonCallModuleInit(module_name.c_str(),
- m_dictionary_name.c_str(), debugger_sp)) {
+ m_dictionary_name.c_str(),
+ m_debugger.shared_from_this())) {
error.SetErrorString("calling __lldb_init_module failed");
return false;
}
Index: lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
+++ lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
@@ -90,7 +90,7 @@
void *LLDBSwigPythonCreateCommandObject(const char *python_class_name,
const char *session_dictionary_name,
- const lldb::DebuggerSP debugger_sp);
+ lldb::DebuggerSP debugger_sp);
void *LLDBSwigPythonCreateScriptedThreadPlan(
const char *python_class_name, const char *session_dictionary_name,
@@ -137,18 +137,18 @@
bool LLDBSwigPythonCallCommand(const char *python_function_name,
const char *session_dictionary_name,
- lldb::DebuggerSP &debugger, const char *args,
+ lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp);
bool LLDBSwigPythonCallCommandObject(
- PyObject *implementor, lldb::DebuggerSP &debugger, const char *args,
+ PyObject *implementor, lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp);
bool LLDBSwigPythonCallModuleInit(const char *python_module_name,
const char *session_dictionary_name,
- lldb::DebuggerSP &debugger);
+ lldb::DebuggerSP debugger);
void *LLDBSWIGPythonCreateOSPlugin(const char *python_class_name,
const char *session_dictionary_name,
@@ -166,20 +166,20 @@
const lldb::ProcessSP &process,
std::string &output);
-bool LLDBSWIGPythonRunScriptKeywordThread(const char *python_function_name,
- const char *session_dictionary_name,
- lldb::ThreadSP &thread,
- std::string &output);
+llvm::Optional<std::string>
+LLDBSWIGPythonRunScriptKeywordThread(const char *python_function_name,
+ const char *session_dictionary_name,
+ lldb::ThreadSP thread);
bool LLDBSWIGPythonRunScriptKeywordTarget(const char *python_function_name,
const char *session_dictionary_name,
const lldb::TargetSP &target,
std::string &output);
-bool LLDBSWIGPythonRunScriptKeywordFrame(const char *python_function_name,
- const char *session_dictionary_name,
- lldb::StackFrameSP &frame,
- std::string &output);
+llvm::Optional<std::string>
+LLDBSWIGPythonRunScriptKeywordFrame(const char *python_function_name,
+ const char *session_dictionary_name,
+ lldb::StackFrameSP frame);
bool LLDBSWIGPythonRunScriptKeywordValue(const char *python_function_name,
const char *session_dictionary_name,
Index: lldb/bindings/python/python-wrapper.swig
===================================================================
--- lldb/bindings/python/python-wrapper.swig
+++ lldb/bindings/python/python-wrapper.swig
@@ -23,7 +23,6 @@
const lldb_private::StructuredDataImpl &args_impl) {
using namespace llvm;
- lldb::SBFrame sb_frame(frame_sp);
lldb::SBBreakpointLocation sb_bp_loc(bp_loc_sp);
PyErr_Cleaner py_err_cleaner(true);
@@ -38,7 +37,7 @@
else
return arg_info.takeError();
- PythonObject frame_arg(PyRefType::Owned, SBTypeToSWIGWrapper(sb_frame));
+ PythonObject frame_arg = ToSWIGWrapper(frame_sp);
PythonObject bp_loc_arg(PyRefType::Owned, SBTypeToSWIGWrapper(sb_bp_loc));
auto result = [&]() -> Expected<PythonObject> {
@@ -71,7 +70,6 @@
bool lldb_private::LLDBSwigPythonWatchpointCallbackFunction(
const char *python_function_name, const char *session_dictionary_name,
const lldb::StackFrameSP &frame_sp, const lldb::WatchpointSP &wp_sp) {
- lldb::SBFrame sb_frame(frame_sp);
lldb::SBWatchpoint sb_wp(wp_sp);
bool stop_at_watchpoint = true;
@@ -86,7 +84,7 @@
if (!pfunc.IsAllocated())
return stop_at_watchpoint;
- PythonObject frame_arg(PyRefType::Owned, SBTypeToSWIGWrapper(sb_frame));
+ PythonObject frame_arg = ToSWIGWrapper(frame_sp);
PythonObject wp_arg(PyRefType::Owned, SBTypeToSWIGWrapper(sb_wp));
PythonObject result = pfunc(frame_arg, wp_arg, dict);
@@ -194,7 +192,7 @@
void *lldb_private::LLDBSwigPythonCreateCommandObject(
const char *python_class_name, const char *session_dictionary_name,
- const lldb::DebuggerSP debugger_sp) {
+ lldb::DebuggerSP debugger_sp) {
if (python_class_name == NULL || python_class_name[0] == '\0' ||
!session_dictionary_name)
Py_RETURN_NONE;
@@ -208,9 +206,7 @@
if (!pfunc.IsAllocated())
return nullptr;
- lldb::SBDebugger debugger_sb(debugger_sp);
- PythonObject debugger_arg(PyRefType::Owned, SBTypeToSWIGWrapper(debugger_sb));
- PythonObject result = pfunc(debugger_arg, dict);
+ PythonObject result = pfunc(ToSWIGWrapper(std::move(debugger_sp)), dict);
if (result.IsAllocated())
return result.release();
@@ -809,11 +805,10 @@
bool lldb_private::LLDBSwigPythonCallCommand(
const char *python_function_name, const char *session_dictionary_name,
- lldb::DebuggerSP &debugger, const char *args,
+ lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp) {
lldb::SBCommandReturnObject cmd_retobj_sb(cmd_retobj);
- lldb::SBDebugger debugger_sb(debugger);
lldb::SBExecutionContext exe_ctx_sb(exe_ctx_ref_sp);
PyErr_Cleaner py_err_cleaner(true);
@@ -830,7 +825,7 @@
llvm::consumeError(argc.takeError());
return false;
}
- PythonObject debugger_arg(PyRefType::Owned, SBTypeToSWIGWrapper(debugger_sb));
+ PythonObject debugger_arg = ToSWIGWrapper(std::move(debugger));
PythonObject exe_ctx_arg(PyRefType::Owned, SBTypeToSWIGWrapper(exe_ctx_sb));
PythonObject cmd_retobj_arg(PyRefType::Owned,
SBTypeToSWIGWrapper(cmd_retobj_sb));
@@ -844,11 +839,10 @@
}
bool lldb_private::LLDBSwigPythonCallCommandObject(
- PyObject * implementor, lldb::DebuggerSP & debugger, const char *args,
+ PyObject *implementor, lldb::DebuggerSP debugger, const char *args,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp) {
lldb::SBCommandReturnObject cmd_retobj_sb(cmd_retobj);
- lldb::SBDebugger debugger_sb(debugger);
lldb::SBExecutionContext exe_ctx_sb(exe_ctx_ref_sp);
PyErr_Cleaner py_err_cleaner(true);
@@ -859,12 +853,12 @@
if (!pfunc.IsAllocated())
return false;
- PythonObject debugger_arg(PyRefType::Owned, SBTypeToSWIGWrapper(debugger_sb));
PythonObject exe_ctx_arg(PyRefType::Owned, SBTypeToSWIGWrapper(exe_ctx_sb));
PythonObject cmd_retobj_arg(PyRefType::Owned,
SBTypeToSWIGWrapper(cmd_retobj_sb));
- pfunc(debugger_arg, PythonString(args), exe_ctx_arg, cmd_retobj_arg);
+ pfunc(ToSWIGWrapper(std::move(debugger)), PythonString(args), exe_ctx_arg,
+ cmd_retobj_arg);
return true;
}
@@ -922,8 +916,7 @@
PyObject * implementor, const lldb::StackFrameSP &frame_sp) {
static char callee_name[] = "get_recognized_arguments";
- lldb::SBFrame frame_sb(frame_sp);
- PyObject *arg = SBTypeToSWIGWrapper(frame_sb);
+ PythonObject arg = ToSWIGWrapper(frame_sp);
PythonString str(callee_name);
PyObject *result =
@@ -973,14 +966,12 @@
return true;
}
-bool lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
+llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
const char *python_function_name, const char *session_dictionary_name,
- lldb::ThreadSP &thread, std::string &output)
-
-{
+ lldb::ThreadSP thread) {
if (python_function_name == NULL || python_function_name[0] == '\0' ||
!session_dictionary_name)
- return false;
+ return llvm::None;
PyErr_Cleaner py_err_cleaner(true);
@@ -990,15 +981,11 @@
python_function_name, dict);
if (!pfunc.IsAllocated())
- return false;
+ return llvm::None;
- lldb::SBThread thread_sb(thread);
- PythonObject thread_arg(PyRefType::Owned, SBTypeToSWIGWrapper(thread_sb));
- auto result = pfunc(thread_arg, dict);
+ auto result = pfunc(ToSWIGWrapper(std::move(thread)), dict);
- output = result.Str().GetString().str();
-
- return true;
+ return result.Str().GetString().str();
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordTarget(
@@ -1026,14 +1013,12 @@
return true;
}
-bool lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
+llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
const char *python_function_name, const char *session_dictionary_name,
- lldb::StackFrameSP &frame, std::string &output)
-
-{
+ lldb::StackFrameSP frame) {
if (python_function_name == NULL || python_function_name[0] == '\0' ||
!session_dictionary_name)
- return false;
+ return llvm::None;
PyErr_Cleaner py_err_cleaner(true);
@@ -1043,15 +1028,11 @@
python_function_name, dict);
if (!pfunc.IsAllocated())
- return false;
+ return llvm::None;
- lldb::SBFrame frame_sb(frame);
- PythonObject frame_arg(PyRefType::Owned, SBTypeToSWIGWrapper(frame_sb));
- auto result = pfunc(frame_arg, dict);
+ auto result = pfunc(ToSWIGWrapper(std::move(frame)), dict);
- output = result.Str().GetString().str();
-
- return true;
+ return result.Str().GetString().str();
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordValue(
@@ -1081,7 +1062,7 @@
bool lldb_private::LLDBSwigPythonCallModuleInit(
const char *python_module_name, const char *session_dictionary_name,
- lldb::DebuggerSP &debugger) {
+ lldb::DebuggerSP debugger) {
std::string python_function_name_string = python_module_name;
python_function_name_string += ".__lldb_init_module";
const char *python_function_name = python_function_name_string.c_str();
@@ -1098,9 +1079,7 @@
if (!pfunc.IsAllocated())
return true;
- lldb::SBDebugger debugger_sb(debugger);
- PythonObject debugger_arg(PyRefType::Owned, SBTypeToSWIGWrapper(debugger_sb));
- pfunc(debugger_arg, dict);
+ pfunc(ToSWIGWrapper(std::move(debugger)), dict);
return true;
}
Index: lldb/bindings/python/python-swigsafecast.swig
===================================================================
--- lldb/bindings/python/python-swigsafecast.swig
+++ lldb/bindings/python/python-swigsafecast.swig
@@ -5,18 +5,6 @@
return SWIG_NewPointerObj(&event_sb, SWIGTYPE_p_lldb__SBEvent, 0);
}
-PyObject *SBTypeToSWIGWrapper(lldb::SBThread &thread_sb) {
- return SWIG_NewPointerObj(&thread_sb, SWIGTYPE_p_lldb__SBThread, 0);
-}
-
-PyObject *SBTypeToSWIGWrapper(lldb::SBFrame &frame_sb) {
- return SWIG_NewPointerObj(&frame_sb, SWIGTYPE_p_lldb__SBFrame, 0);
-}
-
-PyObject *SBTypeToSWIGWrapper(lldb::SBDebugger &debugger_sb) {
- return SWIG_NewPointerObj(&debugger_sb, SWIGTYPE_p_lldb__SBDebugger, 0);
-}
-
PyObject *SBTypeToSWIGWrapper(lldb::SBWatchpoint &watchpoint_sb) {
return SWIG_NewPointerObj(&watchpoint_sb, SWIGTYPE_p_lldb__SBWatchpoint, 0);
}
@@ -89,5 +77,20 @@
return ToSWIGWrapper(std::make_unique<lldb::SBStructuredData>(data_impl));
}
+PythonObject ToSWIGWrapper(lldb::ThreadSP thread_sp) {
+ return ToSWIGHelper(new lldb::SBThread(std::move(thread_sp)),
+ SWIGTYPE_p_lldb__SBThread);
+}
+
+PythonObject ToSWIGWrapper(lldb::StackFrameSP frame_sp) {
+ return ToSWIGHelper(new lldb::SBFrame(std::move(frame_sp)),
+ SWIGTYPE_p_lldb__SBFrame);
+}
+
+PythonObject ToSWIGWrapper(lldb::DebuggerSP debugger_sp) {
+ return ToSWIGHelper(new lldb::SBDebugger(std::move(debugger_sp)),
+ SWIGTYPE_p_lldb__SBDebugger);
+}
+
} // namespace python
} // namespace lldb_private
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