| //===-- ThreadMachCore.cpp --------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "ThreadMachCore.h" |
| |
| #include "lldb/Utility/SafeMachO.h" |
| |
| #include "lldb/Breakpoint/Watchpoint.h" |
| #include "lldb/Core/State.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/RegisterContext.h" |
| #include "lldb/Target/StopInfo.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Target/Unwind.h" |
| #include "lldb/Utility/ArchSpec.h" |
| #include "lldb/Utility/DataExtractor.h" |
| #include "lldb/Utility/StreamString.h" |
| |
| #include "ProcessMachCore.h" |
| //#include "RegisterContextKDP_arm.h" |
| //#include "RegisterContextKDP_i386.h" |
| //#include "RegisterContextKDP_x86_64.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //---------------------------------------------------------------------- |
| // Thread Registers |
| //---------------------------------------------------------------------- |
| |
| ThreadMachCore::ThreadMachCore(Process &process, lldb::tid_t tid) |
| : Thread(process, tid), m_thread_name(), m_dispatch_queue_name(), |
| m_thread_dispatch_qaddr(LLDB_INVALID_ADDRESS), m_thread_reg_ctx_sp() {} |
| |
| ThreadMachCore::~ThreadMachCore() { DestroyThread(); } |
| |
| const char *ThreadMachCore::GetName() { |
| if (m_thread_name.empty()) |
| return nullptr; |
| return m_thread_name.c_str(); |
| } |
| |
| void ThreadMachCore::RefreshStateAfterStop() { |
| // Invalidate all registers in our register context. We don't set "force" to |
| // true because the stop reply packet might have had some register values |
| // that were expedited and these will already be copied into the register |
| // context by the time this function gets called. The KDPRegisterContext |
| // class has been made smart enough to detect when it needs to invalidate |
| // which registers are valid by putting hooks in the register read and |
| // register supply functions where they check the process stop ID and do the |
| // right thing. |
| const bool force = false; |
| GetRegisterContext()->InvalidateIfNeeded(force); |
| } |
| |
| bool ThreadMachCore::ThreadIDIsValid(lldb::tid_t thread) { return thread != 0; } |
| |
| lldb::RegisterContextSP ThreadMachCore::GetRegisterContext() { |
| if (!m_reg_context_sp) |
| m_reg_context_sp = CreateRegisterContextForFrame(nullptr); |
| return m_reg_context_sp; |
| } |
| |
| lldb::RegisterContextSP |
| ThreadMachCore::CreateRegisterContextForFrame(StackFrame *frame) { |
| lldb::RegisterContextSP reg_ctx_sp; |
| uint32_t concrete_frame_idx = 0; |
| |
| if (frame) |
| concrete_frame_idx = frame->GetConcreteFrameIndex(); |
| |
| if (concrete_frame_idx == 0) { |
| if (!m_thread_reg_ctx_sp) { |
| ProcessSP process_sp(GetProcess()); |
| |
| ObjectFile *core_objfile = |
| static_cast<ProcessMachCore *>(process_sp.get())->GetCoreObjectFile(); |
| if (core_objfile) |
| m_thread_reg_ctx_sp = |
| core_objfile->GetThreadContextAtIndex(GetID(), *this); |
| } |
| reg_ctx_sp = m_thread_reg_ctx_sp; |
| } else { |
| Unwind *unwinder = GetUnwinder(); |
| if (unwinder != nullptr) |
| reg_ctx_sp = unwinder->CreateRegisterContextForFrame(frame); |
| } |
| return reg_ctx_sp; |
| } |
| |
| bool ThreadMachCore::CalculateStopInfo() { |
| ProcessSP process_sp(GetProcess()); |
| if (process_sp) { |
| SetStopInfo(StopInfo::CreateStopReasonWithSignal(*this, SIGSTOP)); |
| return true; |
| } |
| return false; |
| } |