e31d0c20e4
This patch improves breakpoint management when doing interactive scripted process debugging. In other to know which process set a breakpoint, we need to do some book keeping on the multiplexer scripted process. When initializing the multiplexer, we will first copy breakpoints that are already set on the driving target. Everytime we launch or resume, we should copy breakpoints from the multiplexer to the driving process. When creating a breakpoint from a child process, it needs to be set both on the multiplexer and on the driving process. We also tag the created breakpoint with the name and pid of the originator process. This patch also implements all the requirement to achieve proper breakpoint management. That involves: - Adding python interator for breakpoints and watchpoints in SBTarget - Add a new `ScriptedProcess.create_breakpoint` python method Differential Revision: https://reviews.llvm.org/D148548 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
245 lines
10 KiB
C++
245 lines
10 KiB
C++
//===-- ScriptInterpreterPython.h -------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SWIGPYTHONBRIDGE_H
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#define LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SWIGPYTHONBRIDGE_H
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#include <optional>
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#include <string>
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#include "lldb/Host/Config.h"
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#if LLDB_ENABLE_PYTHON
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// LLDB Python header must be included first
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#include "lldb-python.h"
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#include "Plugins/ScriptInterpreter/Python/PythonDataObjects.h"
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#include "lldb/lldb-forward.h"
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#include "lldb/lldb-types.h"
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#include "llvm/Support/Error.h"
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namespace lldb {
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class SBEvent;
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class SBCommandReturnObject;
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class SBValue;
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class SBStream;
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class SBStructuredData;
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} // namespace lldb
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namespace lldb_private {
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namespace python {
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typedef struct swig_type_info swig_type_info;
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python::PythonObject ToSWIGHelper(void *obj, swig_type_info *info);
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/// A class that automatically clears an SB object when it goes out of scope.
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/// Use for cases where the SB object points to a temporary/unowned entity.
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template <typename T> class ScopedPythonObject : PythonObject {
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public:
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ScopedPythonObject(T *sb, swig_type_info *info)
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: PythonObject(ToSWIGHelper(sb, info)), m_sb(sb) {}
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~ScopedPythonObject() {
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if (m_sb)
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*m_sb = T();
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}
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ScopedPythonObject(ScopedPythonObject &&rhs)
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: PythonObject(std::move(rhs)), m_sb(std::exchange(rhs.m_sb, nullptr)) {}
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ScopedPythonObject(const ScopedPythonObject &) = delete;
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ScopedPythonObject &operator=(const ScopedPythonObject &) = delete;
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ScopedPythonObject &operator=(ScopedPythonObject &&) = delete;
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const PythonObject &obj() const { return *this; }
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private:
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T *m_sb;
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};
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PythonObject ToSWIGWrapper(lldb::ValueObjectSP value_sp);
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PythonObject ToSWIGWrapper(lldb::TargetSP target_sp);
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PythonObject ToSWIGWrapper(lldb::ProcessSP process_sp);
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PythonObject ToSWIGWrapper(lldb::ThreadPlanSP thread_plan_sp);
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PythonObject ToSWIGWrapper(lldb::BreakpointSP breakpoint_sp);
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PythonObject ToSWIGWrapper(const Status &status);
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PythonObject ToSWIGWrapper(const StructuredDataImpl &data_impl);
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PythonObject ToSWIGWrapper(lldb::ThreadSP thread_sp);
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PythonObject ToSWIGWrapper(lldb::StackFrameSP frame_sp);
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PythonObject ToSWIGWrapper(lldb::DebuggerSP debugger_sp);
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PythonObject ToSWIGWrapper(lldb::WatchpointSP watchpoint_sp);
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PythonObject ToSWIGWrapper(lldb::BreakpointLocationSP bp_loc_sp);
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PythonObject ToSWIGWrapper(lldb::ExecutionContextRefSP ctx_sp);
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PythonObject ToSWIGWrapper(const TypeSummaryOptions &summary_options);
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PythonObject ToSWIGWrapper(const SymbolContext &sym_ctx);
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PythonObject ToSWIGWrapper(lldb::ProcessAttachInfoSP attach_info_sp);
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PythonObject ToSWIGWrapper(lldb::ProcessLaunchInfoSP launch_info_sp);
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PythonObject ToSWIGWrapper(lldb::DataExtractorSP data_extractor_sp);
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PythonObject ToSWIGWrapper(std::unique_ptr<lldb::SBValue> value_sb);
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PythonObject ToSWIGWrapper(std::unique_ptr<lldb::SBStream> stream_sb);
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PythonObject ToSWIGWrapper(std::unique_ptr<lldb::SBStructuredData> data_sb);
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python::ScopedPythonObject<lldb::SBCommandReturnObject>
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ToSWIGWrapper(CommandReturnObject &cmd_retobj);
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python::ScopedPythonObject<lldb::SBEvent> ToSWIGWrapper(Event *event);
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} // namespace python
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void *LLDBSWIGPython_CastPyObjectToSBData(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBBreakpoint(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBAttachInfo(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBLaunchInfo(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBError(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBValue(PyObject *data);
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void *LLDBSWIGPython_CastPyObjectToSBMemoryRegionInfo(PyObject *data);
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// These prototypes are the Pythonic implementations of the required callbacks.
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// Although these are scripting-language specific, their definition depends on
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// the public API.
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python::PythonObject LLDBSwigPythonCreateScriptedObject(
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const char *python_class_name, const char *session_dictionary_name,
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lldb::ExecutionContextRefSP exe_ctx_sp,
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const lldb_private::StructuredDataImpl &args_impl,
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std::string &error_string);
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llvm::Expected<bool> LLDBSwigPythonBreakpointCallbackFunction(
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const char *python_function_name, const char *session_dictionary_name,
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const lldb::StackFrameSP &sb_frame,
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const lldb::BreakpointLocationSP &sb_bp_loc,
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const lldb_private::StructuredDataImpl &args_impl);
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bool LLDBSwigPythonWatchpointCallbackFunction(
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const char *python_function_name, const char *session_dictionary_name,
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const lldb::StackFrameSP &sb_frame, const lldb::WatchpointSP &sb_wp);
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bool LLDBSwigPythonFormatterCallbackFunction(
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const char *python_function_name, const char *session_dictionary_name,
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lldb::TypeImplSP type_impl_sp);
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bool LLDBSwigPythonCallTypeScript(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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const lldb::TypeSummaryOptionsSP &options_sp,
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std::string &retval);
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python::PythonObject
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LLDBSwigPythonCreateSyntheticProvider(const char *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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python::PythonObject
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LLDBSwigPythonCreateCommandObject(const char *python_class_name,
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const char *session_dictionary_name,
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lldb::DebuggerSP debugger_sp);
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python::PythonObject LLDBSwigPythonCreateScriptedThreadPlan(
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const char *python_class_name, const char *session_dictionary_name,
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const StructuredDataImpl &args_data, std::string &error_string,
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const lldb::ThreadPlanSP &thread_plan_sp);
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bool LLDBSWIGPythonCallThreadPlan(void *implementor, const char *method_name,
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lldb_private::Event *event_sp,
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bool &got_error);
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python::PythonObject LLDBSwigPythonCreateScriptedBreakpointResolver(
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const char *python_class_name, const char *session_dictionary_name,
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const StructuredDataImpl &args, const lldb::BreakpointSP &bkpt_sp);
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unsigned int
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LLDBSwigPythonCallBreakpointResolver(void *implementor, const char *method_name,
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lldb_private::SymbolContext *sym_ctx);
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python::PythonObject LLDBSwigPythonCreateScriptedStopHook(
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lldb::TargetSP target_sp, const char *python_class_name,
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const char *session_dictionary_name, const StructuredDataImpl &args,
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lldb_private::Status &error);
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bool LLDBSwigPythonStopHookCallHandleStop(void *implementor,
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lldb::ExecutionContextRefSP exc_ctx,
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lldb::StreamSP stream);
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size_t LLDBSwigPython_CalculateNumChildren(PyObject *implementor, uint32_t max);
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PyObject *LLDBSwigPython_GetChildAtIndex(PyObject *implementor, uint32_t idx);
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int LLDBSwigPython_GetIndexOfChildWithName(PyObject *implementor,
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const char *child_name);
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lldb::ValueObjectSP LLDBSWIGPython_GetValueObjectSPFromSBValue(void *data);
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bool LLDBSwigPython_UpdateSynthProviderInstance(PyObject *implementor);
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bool LLDBSwigPython_MightHaveChildrenSynthProviderInstance(
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PyObject *implementor);
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PyObject *LLDBSwigPython_GetValueSynthProviderInstance(PyObject *implementor);
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bool LLDBSwigPythonCallCommand(const char *python_function_name,
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const char *session_dictionary_name,
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lldb::DebuggerSP debugger, const char *args,
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lldb_private::CommandReturnObject &cmd_retobj,
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lldb::ExecutionContextRefSP exe_ctx_ref_sp);
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bool LLDBSwigPythonCallCommandObject(
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PyObject *implementor, lldb::DebuggerSP debugger, const char *args,
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lldb_private::CommandReturnObject &cmd_retobj,
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lldb::ExecutionContextRefSP exe_ctx_ref_sp);
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bool LLDBSwigPythonCallModuleInit(const char *python_module_name,
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const char *session_dictionary_name,
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lldb::DebuggerSP debugger);
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python::PythonObject
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LLDBSWIGPythonCreateOSPlugin(const char *python_class_name,
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const char *session_dictionary_name,
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const lldb::ProcessSP &process_sp);
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python::PythonObject
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LLDBSWIGPython_CreateFrameRecognizer(const char *python_class_name,
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const char *session_dictionary_name);
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PyObject *
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LLDBSwigPython_GetRecognizedArguments(PyObject *implementor,
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const lldb::StackFrameSP &frame_sp);
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bool LLDBSWIGPythonRunScriptKeywordProcess(const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::ProcessSP &process,
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std::string &output);
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std::optional<std::string>
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LLDBSWIGPythonRunScriptKeywordThread(const char *python_function_name,
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const char *session_dictionary_name,
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lldb::ThreadSP thread);
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bool LLDBSWIGPythonRunScriptKeywordTarget(const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::TargetSP &target,
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std::string &output);
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std::optional<std::string>
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LLDBSWIGPythonRunScriptKeywordFrame(const char *python_function_name,
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const char *session_dictionary_name,
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lldb::StackFrameSP frame);
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bool LLDBSWIGPythonRunScriptKeywordValue(const char *python_function_name,
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const char *session_dictionary_name,
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const lldb::ValueObjectSP &value,
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std::string &output);
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void *LLDBSWIGPython_GetDynamicSetting(void *module, const char *setting,
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const lldb::TargetSP &target_sp);
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} // namespace lldb_private
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#endif // LLDB_ENABLE_PYTHON
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#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_SWIGPYTHONBRIDGE_H
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