59d8dd79e1
This patch introduces the `ScriptedThread` class with its python interface. When used with `ScriptedProcess`, `ScriptedThreaad` can provide various information such as the thread state, stop reason or even its register context. This can be used to reconstruct the program stack frames using lldb's unwinder. rdar://74503836 Differential Revision: https://reviews.llvm.org/D107585 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
137 lines
3.9 KiB
C++
137 lines
3.9 KiB
C++
//===-- ScriptedThreadPythonInterface.cpp ---------------------------------===//
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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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#include "lldb/Host/Config.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/Logging.h"
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#include "lldb/lldb-enumerations.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 "SWIGPythonBridge.h"
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#include "ScriptInterpreterPythonImpl.h"
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#include "ScriptedThreadPythonInterface.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::python;
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using Locker = ScriptInterpreterPythonImpl::Locker;
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ScriptedThreadPythonInterface::ScriptedThreadPythonInterface(
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ScriptInterpreterPythonImpl &interpreter)
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: ScriptedThreadInterface(), ScriptedPythonInterface(interpreter) {}
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StructuredData::GenericSP ScriptedThreadPythonInterface::CreatePluginObject(
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const llvm::StringRef class_name, ExecutionContext &exe_ctx,
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StructuredData::DictionarySP args_sp) {
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if (class_name.empty())
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return {};
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Locker py_lock(&m_interpreter, Locker::AcquireLock | Locker::NoSTDIN,
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Locker::FreeLock);
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std::string error_string;
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TargetSP target_sp = exe_ctx.GetTargetSP();
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void *ret_val = LLDBSwigPythonCreateScriptedThread(
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class_name.str().c_str(), m_interpreter.GetDictionaryName(), target_sp,
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error_string);
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if (!ret_val)
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return {};
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m_object_instance_sp =
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StructuredData::GenericSP(new StructuredPythonObject(ret_val));
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return m_object_instance_sp;
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}
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lldb::tid_t ScriptedThreadPythonInterface::GetThreadID() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_thread_id", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, obj, error))
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return LLDB_INVALID_THREAD_ID;
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return obj->GetIntegerValue(LLDB_INVALID_THREAD_ID);
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}
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llvm::Optional<std::string> ScriptedThreadPythonInterface::GetName() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_name", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, obj, error))
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return {};
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return obj->GetStringValue().str();
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}
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lldb::StateType ScriptedThreadPythonInterface::GetState() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_state", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, obj, error))
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return eStateInvalid;
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return static_cast<StateType>(obj->GetIntegerValue(eStateInvalid));
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}
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llvm::Optional<std::string> ScriptedThreadPythonInterface::GetQueue() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_queue", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, obj, error))
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return {};
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return obj->GetStringValue().str();
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}
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StructuredData::DictionarySP ScriptedThreadPythonInterface::GetStopReason() {
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Status error;
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StructuredData::DictionarySP dict =
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Dispatch<StructuredData::DictionarySP>("get_stop_reason", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, dict, error))
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return {};
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return dict;
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}
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StructuredData::ArraySP ScriptedThreadPythonInterface::GetStackFrames() {
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return nullptr;
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}
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StructuredData::DictionarySP ScriptedThreadPythonInterface::GetRegisterInfo() {
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Status error;
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StructuredData::DictionarySP dict =
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Dispatch<StructuredData::DictionarySP>("get_register_info", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, dict, error))
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return {};
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return dict;
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}
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llvm::Optional<std::string>
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ScriptedThreadPythonInterface::GetRegisterContext() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_register_context", error);
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if (!CheckStructuredDataObject(__PRETTY_FUNCTION__, obj, error))
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return {};
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return obj->GetAsString()->GetValue().str();
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}
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#endif
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