Med Ismail Bennani f190ec6882 [lldb/Plugins] Add memory writing capabilities to Scripted Process
This patch adds memory writing capabilities to the Scripted Process plugin.

This allows to user to get a target address and a memory buffer on the
python scripted process implementation that the user can make processing
on before performing the actual write.

This will also be used to write trap instruction to a real process
memory to set a breakpoint.

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2023-03-03 19:33:02 -08:00

294 lines
9.5 KiB
C++

//===-- PythonTestSuite.cpp -----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h"
#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h"
#include "Plugins/ScriptInterpreter/Python/lldb-python.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/HostInfo.h"
#include "PythonTestSuite.h"
#include <optional>
using namespace lldb_private;
class TestScriptInterpreterPython : public ScriptInterpreterPythonImpl {
public:
using ScriptInterpreterPythonImpl::Initialize;
};
void PythonTestSuite::SetUp() {
FileSystem::Initialize();
HostInfoBase::Initialize();
// ScriptInterpreterPython::Initialize() depends on HostInfo being
// initializedso it can compute the python directory etc.
TestScriptInterpreterPython::Initialize();
// Although we don't care about concurrency for the purposes of running
// this test suite, Python requires the GIL to be locked even for
// deallocating memory, which can happen when you call Py_DECREF or
// Py_INCREF. So acquire the GIL for the entire duration of this
// test suite.
m_gil_state = PyGILState_Ensure();
}
void PythonTestSuite::TearDown() {
PyGILState_Release(m_gil_state);
TestScriptInterpreterPython::Terminate();
HostInfoBase::Terminate();
FileSystem::Terminate();
}
// The following functions are the Pythonic implementations of the required
// callbacks. Because they're defined in libLLDB which we cannot link for the
// unit test, we have a 'default' implementation here.
extern "C" PyObject *PyInit__lldb(void) { return nullptr; }
llvm::Expected<bool> lldb_private::LLDBSwigPythonBreakpointCallbackFunction(
const char *python_function_name, const char *session_dictionary_name,
const lldb::StackFrameSP &sb_frame,
const lldb::BreakpointLocationSP &sb_bp_loc,
const StructuredDataImpl &args_impl) {
return false;
}
bool lldb_private::LLDBSwigPythonWatchpointCallbackFunction(
const char *python_function_name, const char *session_dictionary_name,
const lldb::StackFrameSP &sb_frame, const lldb::WatchpointSP &sb_wp) {
return false;
}
bool lldb_private::LLDBSwigPythonFormatterCallbackFunction(
const char *python_function_name, const char *session_dictionary_name,
lldb::TypeImplSP type_impl_sp) {
return false;
}
bool lldb_private::LLDBSwigPythonCallTypeScript(
const char *python_function_name, const void *session_dictionary,
const lldb::ValueObjectSP &valobj_sp, void **pyfunct_wrapper,
const lldb::TypeSummaryOptionsSP &options_sp, std::string &retval) {
return false;
}
python::PythonObject lldb_private::LLDBSwigPythonCreateSyntheticProvider(
const char *python_class_name, const char *session_dictionary_name,
const lldb::ValueObjectSP &valobj_sp) {
return python::PythonObject();
}
python::PythonObject lldb_private::LLDBSwigPythonCreateCommandObject(
const char *python_class_name, const char *session_dictionary_name,
lldb::DebuggerSP debugger_sp) {
return python::PythonObject();
}
python::PythonObject lldb_private::LLDBSwigPythonCreateScriptedThreadPlan(
const char *python_class_name, const char *session_dictionary_name,
const StructuredDataImpl &args_data, std::string &error_string,
const lldb::ThreadPlanSP &thread_plan_sp) {
return python::PythonObject();
}
bool lldb_private::LLDBSWIGPythonCallThreadPlan(void *implementor,
const char *method_name,
Event *event_sp,
bool &got_error) {
return false;
}
python::PythonObject
lldb_private::LLDBSwigPythonCreateScriptedBreakpointResolver(
const char *python_class_name, const char *session_dictionary_name,
const StructuredDataImpl &args, const lldb::BreakpointSP &bkpt_sp) {
return python::PythonObject();
}
unsigned int lldb_private::LLDBSwigPythonCallBreakpointResolver(
void *implementor, const char *method_name,
lldb_private::SymbolContext *sym_ctx) {
return 0;
}
size_t lldb_private::LLDBSwigPython_CalculateNumChildren(PyObject *implementor,
uint32_t max) {
return 0;
}
PyObject *lldb_private::LLDBSwigPython_GetChildAtIndex(PyObject *implementor,
uint32_t idx) {
return nullptr;
}
int lldb_private::LLDBSwigPython_GetIndexOfChildWithName(
PyObject *implementor, const char *child_name) {
return 0;
}
void *lldb_private::LLDBSWIGPython_CastPyObjectToSBData(PyObject *data) {
return nullptr;
}
void *lldb_private::LLDBSWIGPython_CastPyObjectToSBAttachInfo(PyObject *data) {
return nullptr;
}
void *lldb_private::LLDBSWIGPython_CastPyObjectToSBLaunchInfo(PyObject *data) {
return nullptr;
}
void *lldb_private::LLDBSWIGPython_CastPyObjectToSBError(PyObject *data) {
return nullptr;
}
void *lldb_private::LLDBSWIGPython_CastPyObjectToSBValue(PyObject *data) {
return nullptr;
}
void *
lldb_private::LLDBSWIGPython_CastPyObjectToSBMemoryRegionInfo(PyObject *data) {
return nullptr;
}
lldb::ValueObjectSP
lldb_private::LLDBSWIGPython_GetValueObjectSPFromSBValue(void *data) {
return nullptr;
}
bool lldb_private::LLDBSwigPython_UpdateSynthProviderInstance(
PyObject *implementor) {
return false;
}
bool lldb_private::LLDBSwigPython_MightHaveChildrenSynthProviderInstance(
PyObject *implementor) {
return false;
}
PyObject *lldb_private::LLDBSwigPython_GetValueSynthProviderInstance(
PyObject *implementor) {
return nullptr;
}
bool lldb_private::LLDBSwigPythonCallCommand(
const char *python_function_name, const char *session_dictionary_name,
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,
lldb_private::CommandReturnObject &cmd_retobj,
lldb::ExecutionContextRefSP exe_ctx_ref_sp) {
return false;
}
bool lldb_private::LLDBSwigPythonCallModuleInit(
const char *python_module_name, const char *session_dictionary_name,
lldb::DebuggerSP debugger) {
return false;
}
python::PythonObject
lldb_private::LLDBSWIGPythonCreateOSPlugin(const char *python_class_name,
const char *session_dictionary_name,
const lldb::ProcessSP &process_sp) {
return python::PythonObject();
}
python::PythonObject lldb_private::LLDBSwigPythonCreateScriptedObject(
const char *python_class_name, const char *session_dictionary_name,
lldb::ExecutionContextRefSP exe_ctx_sp, const StructuredDataImpl &args_impl,
std::string &error_string) {
return python::PythonObject();
}
python::PythonObject lldb_private::LLDBSWIGPython_CreateFrameRecognizer(
const char *python_class_name, const char *session_dictionary_name) {
return python::PythonObject();
}
PyObject *lldb_private::LLDBSwigPython_GetRecognizedArguments(
PyObject *implementor, const lldb::StackFrameSP &frame_sp) {
return nullptr;
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordProcess(
const char *python_function_name, const char *session_dictionary_name,
const lldb::ProcessSP &process, std::string &output) {
return false;
}
std::optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
const char *python_function_name, const char *session_dictionary_name,
lldb::ThreadSP thread) {
return std::nullopt;
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordTarget(
const char *python_function_name, const char *session_dictionary_name,
const lldb::TargetSP &target, std::string &output) {
return false;
}
std::optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
const char *python_function_name, const char *session_dictionary_name,
lldb::StackFrameSP frame) {
return std::nullopt;
}
bool lldb_private::LLDBSWIGPythonRunScriptKeywordValue(
const char *python_function_name, const char *session_dictionary_name,
const lldb::ValueObjectSP &value, std::string &output) {
return false;
}
void *lldb_private::LLDBSWIGPython_GetDynamicSetting(
void *module, const char *setting, const lldb::TargetSP &target_sp) {
return nullptr;
}
python::PythonObject lldb_private::LLDBSwigPythonCreateScriptedStopHook(
lldb::TargetSP target_sp, const char *python_class_name,
const char *session_dictionary_name, const StructuredDataImpl &args_impl,
Status &error) {
return python::PythonObject();
}
bool lldb_private::LLDBSwigPythonStopHookCallHandleStop(
void *implementor, lldb::ExecutionContextRefSP exc_ctx_sp,
lldb::StreamSP stream) {
return false;
}
python::PythonObject lldb_private::python::ToSWIGWrapper(const Status &status) {
return python::PythonObject();
}
python::PythonObject
lldb_private::python::ToSWIGWrapper(lldb::ProcessAttachInfoSP) {
return python::PythonObject();
}
python::PythonObject
lldb_private::python::ToSWIGWrapper(lldb::ProcessLaunchInfoSP) {
return python::PythonObject();
}
python::PythonObject
lldb_private::python::ToSWIGWrapper(lldb::DataExtractorSP) {
return python::PythonObject();
}