| //===-- ThreadMemory.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 "Plugins/Process/Utility/ThreadMemory.h" |
| |
| #include "Plugins/Process/Utility/RegisterContextThreadMemory.h" |
| #include "lldb/Target/OperatingSystem.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/RegisterContext.h" |
| #include "lldb/Target/StopInfo.h" |
| #include "lldb/Target/Unwind.h" |
| |
| #include <memory> |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| ThreadMemory::ThreadMemory(Process &process, tid_t tid, |
| const ValueObjectSP &thread_info_valobj_sp) |
| : Thread(process, tid), m_backing_thread_sp(), |
| m_thread_info_valobj_sp(thread_info_valobj_sp), m_name(), m_queue() {} |
| |
| ThreadMemory::ThreadMemory(Process &process, lldb::tid_t tid, |
| llvm::StringRef name, llvm::StringRef queue, |
| lldb::addr_t register_data_addr) |
| : Thread(process, tid), m_backing_thread_sp(), m_thread_info_valobj_sp(), |
| m_name(std::string(name)), m_queue(std::string(queue)), |
| m_register_data_addr(register_data_addr) {} |
| |
| ThreadMemory::~ThreadMemory() { DestroyThread(); } |
| |
| void ThreadMemory::WillResume(StateType resume_state) { |
| if (m_backing_thread_sp) |
| m_backing_thread_sp->WillResume(resume_state); |
| } |
| |
| void ThreadMemory::ClearStackFrames() { |
| if (m_backing_thread_sp) |
| m_backing_thread_sp->ClearStackFrames(); |
| Thread::ClearStackFrames(); |
| } |
| |
| RegisterContextSP ThreadMemory::GetRegisterContext() { |
| if (!m_reg_context_sp) |
| m_reg_context_sp = std::make_shared<RegisterContextThreadMemory>( |
| *this, m_register_data_addr); |
| return m_reg_context_sp; |
| } |
| |
| RegisterContextSP |
| ThreadMemory::CreateRegisterContextForFrame(StackFrame *frame) { |
| uint32_t concrete_frame_idx = 0; |
| |
| if (frame) |
| concrete_frame_idx = frame->GetConcreteFrameIndex(); |
| |
| if (concrete_frame_idx == 0) |
| return GetRegisterContext(); |
| return GetUnwinder().CreateRegisterContextForFrame(frame); |
| } |
| |
| bool ThreadMemory::CalculateStopInfo() { |
| if (m_backing_thread_sp) { |
| lldb::StopInfoSP backing_stop_info_sp( |
| m_backing_thread_sp->GetPrivateStopInfo()); |
| if (backing_stop_info_sp && |
| backing_stop_info_sp->IsValidForOperatingSystemThread(*this)) { |
| backing_stop_info_sp->SetThread(shared_from_this()); |
| SetStopInfo(backing_stop_info_sp); |
| return true; |
| } |
| } else { |
| ProcessSP process_sp(GetProcess()); |
| |
| if (process_sp) { |
| OperatingSystem *os = process_sp->GetOperatingSystem(); |
| if (os) { |
| SetStopInfo(os->CreateThreadStopReason(this)); |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| void ThreadMemory::RefreshStateAfterStop() { |
| if (m_backing_thread_sp) |
| return m_backing_thread_sp->RefreshStateAfterStop(); |
| |
| if (m_reg_context_sp) |
| m_reg_context_sp->InvalidateAllRegisters(); |
| } |