Remove shared pointer from NativeProcessProtocol

[labath]

Summary

The usage of shared_from_this forces us to separate construction and
initialization phases, because shared_from_this() is not available in
the constructor (or destructor). The shared semantics are not necessary,
as we always have a clear owner of the native process class
(GDBRemoteCommunicationServerLLDB object). Even if we need shared
semantics in the future (which I think we should strongly avoid),
reverting this will not be necessary -- the owners can still easily
store the native process object in a shared pointer if they really want
to -- this just prevents the knowledge of that from leaking into the
class implementation.

After this a NativeThread object will hold a reference to the parent
process (instead of a weak_ptr) -- having a process instance always
available allows us to simplify some logic in this class (some of it was
already simplified because we were asserting that the process is
available, but this makes it obvious).

[krytarowski]

I have no particular opinion on it. If it builds and works, I'm fine with it.

include/lldb/Host/common/NativeProcessProtocol.h

 
 namespace lldb_private {
 class MemoryRegionInfo;
 class ResumeActionList;
 
 //------------------------------------------------------------------
 // NativeProcessProtocol
 //------------------------------------------------------------------
-class NativeProcessProtocol
-    : public std::enable_shared_from_this<NativeProcessProtocol> {
+class NativeProcessProtocol {
   friend class SoftwareBreakpoint;
 
 public:
   virtual ~NativeProcessProtocol() {}
 
   virtual Status Resume(const ResumeActionList &resume_actions) = 0;
 
   virtual Status Halt() = 0;
public:
     ///     The mainloop instance with which the process can register
     ///     callbacks. Must outlive the NativeProcessProtocol
     ///     instance.
     ///
     /// @return
     ///     A NativeProcessProtocol shared pointer if the operation succeeded or
     ///     an error object if it failed.
     //------------------------------------------------------------------
-    virtual llvm::Expected<NativeProcessProtocolSP>
+    virtual llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
            MainLoop &mainloop) const = 0;
 
     //------------------------------------------------------------------
     /// Attach to an existing process.
     ///
     /// @param[in] pid
     ///     pid of the process locatable
     ///
     /// @param[in] native_delegate
     ///     The delegate that will receive messages regarding the
     ///     inferior.  Must outlive the NativeProcessProtocol
     ///     instance.
     ///
     /// @param[in] mainloop
     ///     The mainloop instance with which the process can register
     ///     callbacks. Must outlive the NativeProcessProtocol
     ///     instance.
     ///
     /// @return
     ///     A NativeProcessProtocol shared pointer if the operation succeeded or
     ///     an error object if it failed.
     //------------------------------------------------------------------
-    virtual llvm::Expected<NativeProcessProtocolSP>
+    virtual llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Attach(lldb::pid_t pid, NativeDelegate &native_delegate,
            MainLoop &mainloop) const = 0;
   };
 
   //------------------------------------------------------------------
   /// StartTracing API for starting a tracing instance with the
   /// TraceOptions on a specific thread or process.
   ///

include/lldb/Host/common/NativeThreadProtocol.h

 
 namespace lldb_private {
 //------------------------------------------------------------------
 // NativeThreadProtocol
 //------------------------------------------------------------------
 class NativeThreadProtocol
     : public std::enable_shared_from_this<NativeThreadProtocol> {
 public:
-  NativeThreadProtocol(NativeProcessProtocol *process, lldb::tid_t tid);
+  NativeThreadProtocol(NativeProcessProtocol &process, lldb::tid_t tid);
 
   virtual ~NativeThreadProtocol() {}
 
   virtual std::string GetName() = 0;
 
   virtual lldb::StateType GetState() = 0;
 
   virtual NativeRegisterContextSP GetRegisterContext() = 0;
 
   virtual Status ReadRegister(uint32_t reg, RegisterValue &reg_value);
 
   virtual Status WriteRegister(uint32_t reg, const RegisterValue &reg_value);
 
   virtual Status SaveAllRegisters(lldb::DataBufferSP &data_sp);
 
   virtual Status RestoreAllRegisters(lldb::DataBufferSP &data_sp);
 
   virtual bool GetStopReason(ThreadStopInfo &stop_info,
                              std::string &description) = 0;
 
   lldb::tid_t GetID() const { return m_tid; }
 
-  NativeProcessProtocolSP GetProcess();
+  NativeProcessProtocol &GetProcess() { return m_process; }
 
   // ---------------------------------------------------------------------
   // Thread-specific watchpoints
   // ---------------------------------------------------------------------
   virtual Status SetWatchpoint(lldb::addr_t addr, size_t size,
                                uint32_t watch_flags, bool hardware) = 0;
 
   virtual Status RemoveWatchpoint(lldb::addr_t addr) = 0;
 
   // ---------------------------------------------------------------------
   // Thread-specific Hardware Breakpoint routines
   // ---------------------------------------------------------------------
   virtual Status SetHardwareBreakpoint(lldb::addr_t addr, size_t size) = 0;
 
   virtual Status RemoveHardwareBreakpoint(lldb::addr_t addr) = 0;
 
 protected:
-  NativeProcessProtocolWP m_process_wp;
+  NativeProcessProtocol &m_process;
   lldb::tid_t m_tid;
 };
 }
 
 #endif // #ifndef liblldb_NativeThreadProtocol_h_

include/lldb/lldb-private-forward.h

 class NativeThreadProtocol;
 class ResumeActionList;
 class UnixSignals;
 
 // ---------------------------------------------------------------
 // SP/WP decls.
 // ---------------------------------------------------------------
 typedef std::shared_ptr<NativeBreakpoint> NativeBreakpointSP;
-typedef std::shared_ptr<lldb_private::NativeProcessProtocol>
-    NativeProcessProtocolSP;
-typedef std::weak_ptr<lldb_private::NativeProcessProtocol>
-    NativeProcessProtocolWP;
 typedef std::shared_ptr<lldb_private::NativeRegisterContext>
     NativeRegisterContextSP;
 typedef std::shared_ptr<lldb_private::NativeThreadProtocol>
     NativeThreadProtocolSP;
 }
 
 #endif // #if defined(__cplusplus)
 #endif // #ifndef LLDB_lldb_private_forward_h_

source/Host/common/NativeRegisterContext.cpp

if (src_len > dst_len) {
     error.SetErrorStringWithFormat(
         "%" PRIu64 " bytes is too big to store in register %s (%" PRIu64
         " bytes)",
         static_cast<uint64_t>(src_len), reg_info->name,
         static_cast<uint64_t>(dst_len));
     return error;
   }
 
-  NativeProcessProtocolSP process_sp(m_thread.GetProcess());
-  if (!process_sp) {
-    error.SetErrorString("invalid process");
-    return error;
-  }
-
+  NativeProcessProtocol &process = m_thread.GetProcess();
   uint8_t src[RegisterValue::kMaxRegisterByteSize];
 
   // Read the memory
   size_t bytes_read;
-  error = process_sp->ReadMemory(src_addr, src, src_len, bytes_read);
+  error = process.ReadMemory(src_addr, src, src_len, bytes_read);
   if (error.Fail())
     return error;
 
   // Make sure the memory read succeeded...
   if (bytes_read != src_len) {
     // This might happen if we read _some_ bytes but not all
     error.SetErrorStringWithFormat("read %" PRIu64 " of %" PRIu64 " bytes",
                                    static_cast<uint64_t>(bytes_read),
                                    static_cast<uint64_t>(src_len));
     return error;
   }
 
   // We now have a memory buffer that contains the part or all of the register
   // value. Set the register value using this memory data.
   // TODO: we might need to add a parameter to this function in case the byte
   // order of the memory data doesn't match the process. For now we are assuming
   // they are the same.
   lldb::ByteOrder byte_order;
-  if (!process_sp->GetByteOrder(byte_order)) {
+  if (process.GetByteOrder(byte_order)) {
     error.SetErrorString("NativeProcessProtocol::GetByteOrder () failed");
     return error;
   }
 
   reg_value.SetFromMemoryData(reg_info, src, src_len, byte_order, error);
 
   return error;
 }
 
 Status NativeRegisterContext::WriteRegisterValueToMemory(
     const RegisterInfo *reg_info, lldb::addr_t dst_addr, size_t dst_len,
     const RegisterValue &reg_value) {
 
   uint8_t dst[RegisterValue::kMaxRegisterByteSize];
 
   Status error;
 
-  NativeProcessProtocolSP process_sp(m_thread.GetProcess());
-  if (process_sp) {
+  NativeProcessProtocol &process = m_thread.GetProcess();
 
-    // TODO: we might need to add a parameter to this function in case the byte
-    // order of the memory data doesn't match the process. For now we are
-    // assuming
-    // they are the same.
-    lldb::ByteOrder byte_order;
-    if (!process_sp->GetByteOrder(byte_order))
-      return Status("NativeProcessProtocol::GetByteOrder () failed");
+  if (!process.GetByteOrder(byte_order))
 
-    const size_t bytes_copied =
-        reg_value.GetAsMemoryData(reg_info, dst, dst_len, byte_order, error);
 
-    if (error.Success()) {
-      if (bytes_copied == 0) {
-        error.SetErrorString("byte copy failed.");
-      } else {
-        size_t bytes_written;
-        error =
-            process_sp->WriteMemory(dst_addr, dst, bytes_copied, bytes_written);
-        if (error.Fail())
-          return error;
+      error = process.WriteMemory(dst_addr, dst, bytes_copied, bytes_written);
 
-        if (bytes_written != bytes_copied) {
-          // This might happen if we read _some_ bytes but not all
-          error.SetErrorStringWithFormat("only wrote %" PRIu64 " of %" PRIu64
-                                         " bytes",
-                                         static_cast<uint64_t>(bytes_written),
-                                         static_cast<uint64_t>(bytes_copied));
-        }
-      }
-    }
-  } else
-    error.SetErrorString("invalid process");
 
   return error;
 }
 
 uint32_t
 NativeRegisterContext::ConvertRegisterKindToRegisterNumber(uint32_t kind,
                                                            uint32_t num) const {
   const uint32_t num_regs = GetRegisterCount();

source/Host/common/NativeThreadProtocol.cpp

 
 #include "lldb/Host/common/NativeProcessProtocol.h"
 #include "lldb/Host/common/NativeRegisterContext.h"
 #include "lldb/Host/common/SoftwareBreakpoint.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
-NativeThreadProtocol::NativeThreadProtocol(NativeProcessProtocol *process,
+NativeThreadProtocol::NativeThreadProtocol(NativeProcessProtocol &process,
                                            lldb::tid_t tid)
-    : m_process_wp(process->shared_from_this()), m_tid(tid) {}
+    : m_process(process), m_tid(tid) {}
 
 Status NativeThreadProtocol::ReadRegister(uint32_t reg,
                                           RegisterValue &reg_value) {
   NativeRegisterContextSP register_context_sp = GetRegisterContext();
   if (!register_context_sp)
     return Status("no register context");
 
   const RegisterInfo *const reg_info =

 }
 
 Status NativeThreadProtocol::RestoreAllRegisters(lldb::DataBufferSP &data_sp) {
   NativeRegisterContextSP register_context_sp = GetRegisterContext();
   if (!register_context_sp)
     return Status("no register context");
   return register_context_sp->ReadAllRegisterValues(data_sp);
 }
-
-NativeProcessProtocolSP NativeThreadProtocol::GetProcess() {
-  return m_process_wp.lock();
-}

source/Plugins/Process/Linux/NativeProcessLinux.h

 /// Upon construction, this class prepares and launches an inferior process for
 /// debugging.
 ///
 /// Changes in the inferior process state are broadcasted.
 class NativeProcessLinux : public NativeProcessProtocol {
 public:
   class Factory : public NativeProcessProtocol::Factory {
   public:
-    llvm::Expected<NativeProcessProtocolSP>
+    llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
            MainLoop &mainloop) const override;
 
-    llvm::Expected<NativeProcessProtocolSP>
+    llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Attach(lldb::pid_t pid, NativeDelegate &native_delegate,
            MainLoop &mainloop) const override;
   };
 
   // ---------------------------------------------------------------------
   // NativeProcessProtocol Interface
   // ---------------------------------------------------------------------
   Status Resume(const ResumeActionList &resume_actions) override;
private:
   // List of thread ids stepping with a breakpoint with the address of
   // the relevan breakpoint
   std::map<lldb::tid_t, lldb::addr_t> m_threads_stepping_with_breakpoint;
 
   // ---------------------------------------------------------------------
   // Private Instance Methods
   // ---------------------------------------------------------------------
   NativeProcessLinux(::pid_t pid, int terminal_fd, NativeDelegate &delegate,
-                     const ArchSpec &arch, MainLoop &mainloop);
+                     const ArchSpec &arch, MainLoop &mainloop,
+                     llvm::ArrayRef<::pid_t> tids);
 
   // Returns a list of process threads that we have attached to.
   static llvm::Expected<std::vector<::pid_t>> Attach(::pid_t pid);
 
   static Status SetDefaultPtraceOpts(const lldb::pid_t);
 
-  void InitializeThreads(llvm::ArrayRef<::pid_t> tids);
-
   void MonitorCallback(lldb::pid_t pid, bool exited, WaitStatus status);
 
   void WaitForNewThread(::pid_t tid);
 
   void MonitorSIGTRAP(const siginfo_t &info, NativeThreadLinux &thread);
 
   void MonitorTrace(NativeThreadLinux &thread);
 

source/Plugins/Process/Linux/NativeProcessLinux.cpp

static Status EnsureFDFlags(int fd, int flags) {
 
   return error;
 }
 
 // -----------------------------------------------------------------------------
 // Public Static Methods
 // -----------------------------------------------------------------------------
 
-llvm::Expected<NativeProcessProtocolSP>
+llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
 NativeProcessLinux::Factory::Launch(ProcessLaunchInfo &launch_info,
                                     NativeDelegate &native_delegate,
                                     MainLoop &mainloop) const {
   Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_PROCESS));
 
   MaybeLogLaunchInfo(launch_info);
 
   Status status;
LLDB_LOG(log, "pid = {0:x}, detected architecture {1}", pid,
            arch.GetArchitectureName());
 
   status = SetDefaultPtraceOpts(pid);
   if (status.Fail()) {
     LLDB_LOG(log, "failed to set default ptrace options: {0}", status);
     return status.ToError();
   }
 
-  std::shared_ptr<NativeProcessLinux> process_sp(new NativeProcessLinux(
+  return std::unique_ptr<NativeProcessLinux>(new NativeProcessLinux(
       pid, launch_info.GetPTY().ReleaseMasterFileDescriptor(), native_delegate,
-      arch, mainloop));
-  process_sp->InitializeThreads({pid});
-  return process_sp;
+      arch, mainloop, {pid}));
 }
 
-llvm::Expected<NativeProcessProtocolSP> NativeProcessLinux::Factory::Attach(
+llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
+NativeProcessLinux::Factory::Attach(
     lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &native_delegate,
     MainLoop &mainloop) const {
   Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_PROCESS));
   LLDB_LOG(log, "pid = {0:x}", pid);
 
   // Retrieve the architecture for the running process.
   ArchSpec arch;
   Status status = ResolveProcessArchitecture(pid, arch);
   if (!status.Success())
     return status.ToError();
 
   auto tids_or = NativeProcessLinux::Attach(pid);
   if (!tids_or)
     return tids_or.takeError();
 
-  std::shared_ptr<NativeProcessLinux> process_sp(
-      new NativeProcessLinux(pid, -1, native_delegate, arch, mainloop));
-  process_sp->InitializeThreads(*tids_or);
-  return process_sp;
+  return std::unique_ptr<NativeProcessLinux>(new NativeProcessLinux(
+      pid, -1, native_delegate, arch, mainloop, *tids_or));
 }
 
 // -----------------------------------------------------------------------------
 // Public Instance Methods
 // -----------------------------------------------------------------------------
 
 NativeProcessLinux::NativeProcessLinux(::pid_t pid, int terminal_fd,
                                        NativeDelegate &delegate,
-                                       const ArchSpec &arch, MainLoop &mainloop)
+                                       const ArchSpec &arch, MainLoop &mainloop,
+                                       llvm::ArrayRef<::pid_t> tids)
     : NativeProcessProtocol(pid, terminal_fd, delegate), m_arch(arch) {
   if (m_terminal_fd != -1) {
     Status status = EnsureFDFlags(m_terminal_fd, O_NONBLOCK);
     assert(status.Success());
   }
 
   Status status;
   m_sigchld_handle = mainloop.RegisterSignal(
       SIGCHLD, [this](MainLoopBase &) { SigchldHandler(); }, status);
   assert(m_sigchld_handle && status.Success());
-}
 
-void NativeProcessLinux::InitializeThreads(llvm::ArrayRef<::pid_t> tids) {
   for (const auto &tid : tids) {
     NativeThreadLinuxSP thread_sp = AddThread(tid);
     assert(thread_sp && "AddThread() returned a nullptr thread");
     thread_sp->SetStoppedBySignal(SIGSTOP);
     ThreadWasCreated(*thread_sp);
   }
 
   // Let our process instance know the thread has stopped.
NativeThreadLinuxSP NativeProcessLinux::AddThread(lldb::tid_t thread_id) {
 
   assert(!HasThreadNoLock(thread_id) &&
          "attempted to add a thread by id that already exists");
 
   // If this is the first thread, save it as the current thread
   if (m_threads.empty())
     SetCurrentThreadID(thread_id);
 
-  auto thread_sp = std::make_shared<NativeThreadLinux>(this, thread_id);
+  auto thread_sp = std::make_shared<NativeThreadLinux>(*this, thread_id);
   m_threads.push_back(thread_sp);
 
   if (m_pt_proces_trace_id != LLDB_INVALID_UID) {
     auto traceMonitor = ProcessorTraceMonitor::Create(
         GetID(), thread_id, m_pt_process_trace_config, true);
     if (traceMonitor) {
       m_pt_traced_thread_group.insert(thread_id);
       m_processor_trace_monitor.insert(

source/Plugins/Process/Linux/NativeRegisterContextLinux.cpp

NativeRegisterContextLinux::NativeRegisterContextLinux(
     : NativeRegisterContextRegisterInfo(native_thread, concrete_frame_idx,
                                         reg_info_interface_p) {}
 
 lldb::ByteOrder NativeRegisterContextLinux::GetByteOrder() const {
   // Get the target process whose privileged thread was used for the register
   // read.
   lldb::ByteOrder byte_order = lldb::eByteOrderInvalid;
 
-  NativeProcessProtocolSP process_sp(m_thread.GetProcess());
-  if (!process_sp)
-    return byte_order;
-
-  if (!process_sp->GetByteOrder(byte_order)) {
+  if (!m_thread.GetProcess().GetByteOrder(byte_order)) {
     // FIXME log here
   }
 
   return byte_order;
 }
 
 Status NativeRegisterContextLinux::ReadRegisterRaw(uint32_t reg_index,
                                                    RegisterValue &reg_value) {

source/Plugins/Process/Linux/NativeThreadLinux.h

 namespace process_linux {
 
 class NativeProcessLinux;
 
 class NativeThreadLinux : public NativeThreadProtocol {
   friend class NativeProcessLinux;
 
 public:
-  NativeThreadLinux(NativeProcessLinux *process, lldb::tid_t tid);
+  NativeThreadLinux(NativeProcessLinux &process, lldb::tid_t tid);
 
   // ---------------------------------------------------------------------
   // NativeThreadProtocol Interface
   // ---------------------------------------------------------------------
   std::string GetName() override;
 
   lldb::StateType GetState() override;
 

source/Plugins/Process/Linux/NativeThreadLinux.cpp

case eStopReasonInstrumentation:
     return;
   default:
     log.Printf("%s: %s invalid stop reason %" PRIu32, __FUNCTION__, header,
                static_cast<uint32_t>(stop_info.reason));
   }
 }
 }
 
-NativeThreadLinux::NativeThreadLinux(NativeProcessLinux *process,
+NativeThreadLinux::NativeThreadLinux(NativeProcessLinux &process,
                                      lldb::tid_t tid)
     : NativeThreadProtocol(process, tid), m_state(StateType::eStateInvalid),
       m_stop_info(), m_reg_context_sp(), m_stop_description() {}
 
 std::string NativeThreadLinux::GetName() {
   NativeProcessLinux &process = GetProcess();
 
   auto BufferOrError = getProcFile(process.GetID(), GetID(), "comm");
bool NativeThreadLinux::GetStopReason(ThreadStopInfo &stop_info,
   llvm_unreachable("unhandled StateType!");
 }
 
 NativeRegisterContextSP NativeThreadLinux::GetRegisterContext() {
   // Return the register context if we already created it.
   if (m_reg_context_sp)
     return m_reg_context_sp;
 
-  NativeProcessProtocolSP m_process_sp = m_process_wp.lock();
-  if (!m_process_sp)
-    return NativeRegisterContextSP();
-
   ArchSpec target_arch;
-  if (!m_process_sp->GetArchitecture(target_arch))
+  if (!m_process.GetArchitecture(target_arch))
     return NativeRegisterContextSP();
 
   const uint32_t concrete_frame_idx = 0;
   m_reg_context_sp.reset(
       NativeRegisterContextLinux::CreateHostNativeRegisterContextLinux(
           target_arch, *this, concrete_frame_idx));
 
   return m_reg_context_sp;
void NativeThreadLinux::MaybeLogStateChange(lldb::StateType new_state) {
   if (!log)
     return;
 
   // If this is a state change to the same state, we're done.
   lldb::StateType old_state = m_state;
   if (new_state == old_state)
     return;
 
-  NativeProcessProtocolSP m_process_sp = m_process_wp.lock();
-  lldb::pid_t pid =
-      m_process_sp ? m_process_sp->GetID() : LLDB_INVALID_PROCESS_ID;
-
-  // Log it.
-  log->Printf("NativeThreadLinux: thread (pid=%" PRIu64 ", tid=%" PRIu64
-              ") changing from state %s to %s",
-              pid, GetID(), StateAsCString(old_state),
-              StateAsCString(new_state));
+  LLDB_LOG(log, "pid={0}, tid={1}: changing from state {2} to {3}",
+           m_process.GetID(), GetID(), old_state, new_state);
 }
 
 NativeProcessLinux &NativeThreadLinux::GetProcess() {
-  auto process_sp = std::static_pointer_cast<NativeProcessLinux>(
-      NativeThreadProtocol::GetProcess());
-  assert(process_sp);
-  return *process_sp;
+  return static_cast<NativeProcessLinux &>(m_process);
 }

source/Plugins/Process/NetBSD/NativeProcessNetBSD.h

 /// Upon construction, this class prepares and launches an inferior process for
 /// debugging.
 ///
 /// Changes in the inferior process state are broadcasted.
 class NativeProcessNetBSD : public NativeProcessProtocol {
 public:
   class Factory : public NativeProcessProtocol::Factory {
   public:
-    llvm::Expected<NativeProcessProtocolSP>
+    llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
            MainLoop &mainloop) const override;
 
-    llvm::Expected<NativeProcessProtocolSP>
+    llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
     Attach(lldb::pid_t pid, NativeDelegate &native_delegate,
            MainLoop &mainloop) const override;
   };
 
   // ---------------------------------------------------------------------
   // NativeProcessProtocol Interface
   // ---------------------------------------------------------------------
   Status Resume(const ResumeActionList &resume_actions) override;

source/Plugins/Process/NetBSD/NativeProcessNetBSD.cpp

static Status EnsureFDFlags(int fd, int flags) {
 
   return error;
 }
 
 // -----------------------------------------------------------------------------
 // Public Static Methods
 // -----------------------------------------------------------------------------
 
-llvm::Expected<NativeProcessProtocolSP>
+llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
 NativeProcessNetBSD::Factory::Launch(ProcessLaunchInfo &launch_info,
                                      NativeDelegate &native_delegate,
                                      MainLoop &mainloop) const {
   Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_PROCESS));
 
   Status status;
   ::pid_t pid = ProcessLauncherPosixFork()
                     .LaunchProcess(launch_info, status)
NativeProcessNetBSD::Factory::Launch(ProcessLaunchInfo &launch_info,
   ArchSpec arch;
   if ((status = ResolveProcessArchitecture(pid, arch)).Fail())
     return status.ToError();
 
   // Set the architecture to the exe architecture.
   LLDB_LOG(log, "pid = {0:x}, detected architecture {1}", pid,
            arch.GetArchitectureName());
 
-  std::shared_ptr<NativeProcessNetBSD> process_sp(new NativeProcessNetBSD(
-      pid, launch_info.GetPTY().ReleaseMasterFileDescriptor(), native_delegate,
-      arch, mainloop));
+  std::unique_ptr<NativeProcessNetBSD> process_up(new NativeProcessNetBSD( pid, launch_info.GetPTY().ReleaseMasterFileDescriptor(), native_delegate, arch, mainloop));
 
-  status = process_sp->ReinitializeThreads();
+  status = process_up->ReinitializeThreads();
   if (status.Fail())
     return status.ToError();
 
-  for (const auto &thread_sp : process_sp->m_threads) {
+  for (const auto &thread_sp : process_up->m_threads) {
     static_pointer_cast<NativeThreadNetBSD>(thread_sp)->SetStoppedBySignal(
         SIGSTOP);
   }
-  process_sp->SetState(StateType::eStateStopped);
+  process_up->SetState(StateType::eStateStopped);
 
-  return process_sp;
+  return std::move(process_up);
 }
 
-llvm::Expected<NativeProcessProtocolSP> NativeProcessNetBSD::Factory::Attach(
+llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
+NativeProcessNetBSD::Factory::Attach(
     lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &native_delegate,
     MainLoop &mainloop) const {
   Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_PROCESS));
   LLDB_LOG(log, "pid = {0:x}", pid);
 
   // Retrieve the architecture for the running process.
   ArchSpec arch;
   Status status = ResolveProcessArchitecture(pid, arch);
   if (!status.Success())
     return status.ToError();
 
-  std::shared_ptr<NativeProcessNetBSD> process_sp(
-      new NativeProcessNetBSD(pid, -1, native_delegate, arch, mainloop));
+  std::unique_ptr<NativeProcessNetBSD> process_up(new NativeProcessNetBSD(pid, -1, native_delegate, arch, mainloop));
 
-  status = process_sp->Attach();
+  status = process_up->Attach();
   if (!status.Success())
     return status.ToError();
 
-  return process_sp;
+  return std::move(process_up);
 }
 
 // -----------------------------------------------------------------------------
 // Public Instance Methods
 // -----------------------------------------------------------------------------
 
 NativeProcessNetBSD::NativeProcessNetBSD(::pid_t pid, int terminal_fd,
                                          NativeDelegate &delegate,
NativeThreadNetBSDSP NativeProcessNetBSD::AddThread(lldb::tid_t thread_id) {
 
   assert(!HasThreadNoLock(thread_id) &&
          "attempted to add a thread by id that already exists");
 
   // If this is the first thread, save it as the current thread
   if (m_threads.empty())
     SetCurrentThreadID(thread_id);
 
-  auto thread_sp = std::make_shared<NativeThreadNetBSD>(this, thread_id);
+  auto thread_sp = std::make_shared<NativeThreadNetBSD>(*this, thread_id);
   m_threads.push_back(thread_sp);
   return thread_sp;
 }
 
 Status NativeProcessNetBSD::Attach() {
   // Attach to the requested process.
   // An attach will cause the thread to stop with a SIGSTOP.
   Status status = PtraceWrapper(PT_ATTACH, m_pid);

source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp

 }
 
 Status NativeRegisterContextNetBSD::DoWriteDBR(void *buf) {
   return NativeProcessNetBSD::PtraceWrapper(PT_SETDBREGS, GetProcessPid(), buf,
                                             m_thread.GetID());
 }
 
 NativeProcessNetBSD &NativeRegisterContextNetBSD::GetProcess() {
-  auto process_sp =
-      std::static_pointer_cast<NativeProcessNetBSD>(m_thread.GetProcess());
-  assert(process_sp);
-  return *process_sp;
+  return static_cast<NativeProcessNetBSD &>(m_thread.GetProcess());
 }
 
 ::pid_t NativeRegisterContextNetBSD::GetProcessPid() {
-  NativeProcessNetBSD &process = GetProcess();
-  lldb::pid_t pid = process.GetID();
-
-  return pid;
+  return GetProcess().GetID();
 }

source/Plugins/Process/NetBSD/NativeThreadNetBSD.h

 namespace process_netbsd {
 
 class NativeProcessNetBSD;
 
 class NativeThreadNetBSD : public NativeThreadProtocol {
   friend class NativeProcessNetBSD;
 
 public:
-  NativeThreadNetBSD(NativeProcessNetBSD *process, lldb::tid_t tid);
+  NativeThreadNetBSD(NativeProcessNetBSD &process, lldb::tid_t tid);
 
   // ---------------------------------------------------------------------
   // NativeThreadProtocol Interface
   // ---------------------------------------------------------------------
   std::string GetName() override;
 
   lldb::StateType GetState() override;
 

source/Plugins/Process/NetBSD/NativeThreadNetBSD.cpp

 #include "lldb/Utility/LLDBAssert.h"
 
 #include <sstream>
 
 using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::process_netbsd;
 
-NativeThreadNetBSD::NativeThreadNetBSD(NativeProcessNetBSD *process,
+NativeThreadNetBSD::NativeThreadNetBSD(NativeProcessNetBSD &process,
                                        lldb::tid_t tid)
     : NativeThreadProtocol(process, tid), m_state(StateType::eStateInvalid),
       m_stop_info(), m_reg_context_sp(), m_stop_description() {}
 
 void NativeThreadNetBSD::SetStoppedBySignal(uint32_t signo,
                                             const siginfo_t *info) {
   Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_THREAD));
   LLDB_LOG(log, "tid = {0} in called with signal {1}", GetID(), signo);
bool NativeThreadNetBSD::GetStopReason(ThreadStopInfo &stop_info,
   llvm_unreachable("unhandled StateType!");
 }
 
 NativeRegisterContextSP NativeThreadNetBSD::GetRegisterContext() {
   // Return the register context if we already created it.
   if (m_reg_context_sp)
     return m_reg_context_sp;
 
-  NativeProcessProtocolSP m_process_sp = m_process_wp.lock();
-  if (!m_process_sp)
-    return NativeRegisterContextSP();
-
   ArchSpec target_arch;
-  if (!m_process_sp->GetArchitecture(target_arch))
+  if (!m_process.GetArchitecture(target_arch))
     return NativeRegisterContextSP();
 
   const uint32_t concrete_frame_idx = 0;
   m_reg_context_sp.reset(
       NativeRegisterContextNetBSD::CreateHostNativeRegisterContextNetBSD(
           target_arch, *this, concrete_frame_idx));
 
   return m_reg_context_sp;

source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.h

 
 protected:
   MainLoop &m_mainloop;
   MainLoop::ReadHandleUP m_network_handle_up;
   const NativeProcessProtocol::Factory &m_process_factory;
   lldb::tid_t m_current_tid = LLDB_INVALID_THREAD_ID;
   lldb::tid_t m_continue_tid = LLDB_INVALID_THREAD_ID;
   std::recursive_mutex m_debugged_process_mutex;
-  NativeProcessProtocolSP m_debugged_process_sp;
+  std::unique_ptr<NativeProcessProtocol> m_debugged_process_up;
 
   Communication m_stdio_communication;
   MainLoop::ReadHandleUP m_stdio_handle_up;
 
   lldb::StateType m_inferior_prev_state = lldb::StateType::eStateInvalid;
   std::unique_ptr<llvm::MemoryBuffer> m_active_auxv_buffer_up;
   std::mutex m_saved_registers_mutex;
   std::unordered_map<uint32_t, lldb::DataBufferSP> m_saved_registers_map;

source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp

Status GDBRemoteCommunicationServerLLGS::LaunchProcess() {
   m_process_launch_info.SetLaunchInSeparateProcessGroup(true);
   m_process_launch_info.GetFlags().Set(eLaunchFlagDebug);
 
   const bool default_to_use_pty = true;
   m_process_launch_info.FinalizeFileActions(nullptr, default_to_use_pty);
 
   {
     std::lock_guard<std::recursive_mutex> guard(m_debugged_process_mutex);
-    assert(!m_debugged_process_sp && "lldb-server creating debugged "
+    assert(!m_debugged_process_up && "lldb-server creating debugged "
                                      "process but one already exists");
     auto process_or =
         m_process_factory.Launch(m_process_launch_info, *this, m_mainloop);
     if (!process_or) {
       Status status(process_or.takeError());
       llvm::errs() << llvm::formatv(
           "failed to launch executable `{0}`: {1}",
           m_process_launch_info.GetArguments().GetArgumentAtIndex(0), status);
       return status;
     }
-    m_debugged_process_sp = *process_or;
+    m_debugged_process_up = std::move(*process_or);
   }
 
   // Handle mirroring of inferior stdout/stderr over the gdb-remote protocol
   // as needed.
   // llgs local-process debugging may specify PTY paths, which will make these
   // file actions non-null
   // process launch -i/e/o will also make these file actions non-null
   // nullptr means that the traffic is expected to flow over gdb-remote protocol
   if (should_forward_stdio) {
     // nullptr means it's not redirected to file or pty (in case of LLGS local)
     // at least one of stdio will be transferred pty<->gdb-remote
     // we need to give the pty master handle to this object to read and/or write
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-          " setting up stdout/stderr redirection via $O gdb-remote commands",
-          __FUNCTION__, m_debugged_process_sp->GetID());
+    LLDB_LOG(log,
+             "pid = {0}: setting up stdout/stderr redirection via $O "
+             "gdb-remote commands",
+             m_debugged_process_up->GetID());
 
     // Setup stdout/stderr mapping from inferior to $O
-    auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor();
+    auto terminal_fd = m_debugged_process_up->GetTerminalFileDescriptor();
     if (terminal_fd >= 0) {
       if (log)
         log->Printf("ProcessGDBRemoteCommunicationServerLLGS::%s setting "
                     "inferior STDIO fd to %d",
                     __FUNCTION__, terminal_fd);
       Status status = SetSTDIOFileDescriptor(terminal_fd);
       if (status.Fail())
         return status;
     } else {
       if (log)
         log->Printf("ProcessGDBRemoteCommunicationServerLLGS::%s ignoring "
                     "inferior STDIO since terminal fd reported as %d",
                     __FUNCTION__, terminal_fd);
     }
   } else {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " skipping stdout/stderr redirection via $O: inferior will "
-                  "communicate over client-provided file descriptors",
-                  __FUNCTION__, m_debugged_process_sp->GetID());
+    LLDB_LOG(log,
+             "pid = {0} skipping stdout/stderr redirection via $O: inferior "
+             "will communicate over client-provided file descriptors",
+             m_debugged_process_up->GetID());
   }
 
   printf("Launched '%s' as process %" PRIu64 "...\n",
          m_process_launch_info.GetArguments().GetArgumentAtIndex(0),
-         m_debugged_process_sp->GetID());
+         m_debugged_process_up->GetID());
 
   return Status();
 }
 
 Status GDBRemoteCommunicationServerLLGS::AttachToProcess(lldb::pid_t pid) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
   if (log)
     log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64,
                 __FUNCTION__, pid);
 
   // Before we try to attach, make sure we aren't already monitoring something
   // else.
-  if (m_debugged_process_sp &&
-      m_debugged_process_sp->GetID() != LLDB_INVALID_PROCESS_ID)
+  if (m_debugged_process_up &&
+      m_debugged_process_up->GetID() != LLDB_INVALID_PROCESS_ID)
     return Status("cannot attach to a process %" PRIu64
                   " when another process with pid %" PRIu64
                   " is being debugged.",
-                  pid, m_debugged_process_sp->GetID());
+                  pid, m_debugged_process_up->GetID());
 
   // Try to attach.
   auto process_or = m_process_factory.Attach(pid, *this, m_mainloop);
   if (!process_or) {
     Status status(process_or.takeError());
     llvm::errs() << llvm::formatv("failed to attach to process {0}: {1}", pid,
                                   status);
     return status;
   }
-  m_debugged_process_sp = *process_or;
+  m_debugged_process_up = std::move(*process_or);
 
   // Setup stdout/stderr mapping from inferior.
-  auto terminal_fd = m_debugged_process_sp->GetTerminalFileDescriptor();
+  auto terminal_fd = m_debugged_process_up->GetTerminalFileDescriptor();
   if (terminal_fd >= 0) {
     if (log)
       log->Printf("ProcessGDBRemoteCommunicationServerLLGS::%s setting "
                   "inferior STDIO fd to %d",
                   __FUNCTION__, terminal_fd);
     Status status = SetSTDIOFileDescriptor(terminal_fd);
     if (status.Fail())
       return status;

 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread(
     lldb::tid_t tid) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
 
   // Ensure we have a debugged process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(50);
 
-  if (log)
-    log->Printf(
-        "GDBRemoteCommunicationServerLLGS::%s preparing packet for pid %" PRIu64
-        " tid %" PRIu64,
-        __FUNCTION__, m_debugged_process_sp->GetID(), tid);
+  LLDB_LOG(log, "preparing packet for pid {0} tid {1}",
+           m_debugged_process_up->GetID(), tid);
 
   // Ensure we can get info on the given thread.
-  NativeThreadProtocolSP thread_sp(m_debugged_process_sp->GetThreadByID(tid));
+  NativeThreadProtocolSP thread_sp(m_debugged_process_up->GetThreadByID(tid));
   if (!thread_sp)
     return SendErrorResponse(51);
 
   // Grab the reason this thread stopped.
   struct ThreadStopInfo tid_stop_info;
   std::string description;
   if (!thread_sp->GetStopReason(tid_stop_info, description))
     return SendErrorResponse(52);
 
   // FIXME implement register handling for exec'd inferiors.
   // if (tid_stop_info.reason == eStopReasonExec)
   // {
   //     const bool force = true;
   //     InitializeRegisters(force);
   // }
 
   StreamString response;
   // Output the T packet with the thread
   response.PutChar('T');
   int signum = tid_stop_info.details.signal.signo;
-  if (log) {
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                " tid %" PRIu64
-                " got signal signo = %d, reason = %d, exc_type = %" PRIu64,
-                __FUNCTION__, m_debugged_process_sp->GetID(), tid, signum,
-                tid_stop_info.reason, tid_stop_info.details.exception.type);
-  }
+  LLDB_LOG(
+      log,
+      "pid {0}, tid {1}, got signal signo = {2}, reason = {3}, exc_type = {4}",
+      m_debugged_process_up->GetID(), tid, signum, int(tid_stop_info.reason),
+      tid_stop_info.details.exception.type);
 
   // Print the signal number.
   response.PutHex8(signum & 0xff);
 
   // Include the tid.
   response.Printf("thread:%" PRIx64 ";", tid);
 
   // Include the thread name if there is one.
GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread(
   // stop reply packet, so it must be enabled only on systems where there
   // are no limits on packet lengths.
   if (m_list_threads_in_stop_reply) {
     response.PutCString("threads:");
 
     uint32_t thread_index = 0;
     NativeThreadProtocolSP listed_thread_sp;
     for (listed_thread_sp =
-             m_debugged_process_sp->GetThreadAtIndex(thread_index);
+             m_debugged_process_up->GetThreadAtIndex(thread_index);
          listed_thread_sp; ++thread_index,
-        listed_thread_sp = m_debugged_process_sp->GetThreadAtIndex(
+        listed_thread_sp = m_debugged_process_up->GetThreadAtIndex(
             thread_index)) {
       if (thread_index > 0)
         response.PutChar(',');
       response.Printf("%" PRIx64, listed_thread_sp->GetID());
     }
     response.PutChar(';');
 
     // Include JSON info that describes the stop reason for any threads
     // that actually have stop reasons. We use the new "jstopinfo" key
     // whose values is hex ascii JSON that contains the thread IDs
     // thread stop info only for threads that have stop reasons. Only send
     // this if we have more than one thread otherwise this packet has all
     // the info it needs.
     if (thread_index > 0) {
       const bool threads_with_valid_stop_info_only = true;
       JSONArray::SP threads_info_sp = GetJSONThreadsInfo(
-          *m_debugged_process_sp, threads_with_valid_stop_info_only);
+          *m_debugged_process_up, threads_with_valid_stop_info_only);
       if (threads_info_sp) {
         response.PutCString("jstopinfo:");
         StreamString unescaped_response;
         threads_info_sp->Write(unescaped_response);
         response.PutCStringAsRawHex8(unescaped_response.GetData());
         response.PutChar(';');
-      } else if (log)
-        log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to prepare a "
-                    "jstopinfo field for pid %" PRIu64,
-                    __FUNCTION__, m_debugged_process_sp->GetID());
+      } else
+        LLDB_LOG(log, "failed to prepare a jstopinfo field for pid {0}",
+                 m_debugged_process_up->GetID());
     }
 
     uint32_t i = 0;
     response.PutCString("thread-pcs");
     char delimiter = ':';
     for (NativeThreadProtocolSP thread_sp;
-         (thread_sp = m_debugged_process_sp->GetThreadAtIndex(i)) != nullptr;
+         (thread_sp = m_debugged_process_up->GetThreadAtIndex(i)) != nullptr;
          ++i) {
       NativeRegisterContextSP reg_ctx_sp = thread_sp->GetRegisterContext();
       if (!reg_ctx_sp)
         continue;
 
       uint32_t reg_to_read = reg_ctx_sp->ConvertRegisterKindToRegisterNumber(
           eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
       const RegisterInfo *const reg_info_p =
void GDBRemoteCommunicationServerLLGS::SendProcessOutput() {
   }
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_jTraceStart(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   if (!packet.ConsumeFront("jTraceStart:"))
     return SendIllFormedResponse(packet, "jTraceStart: Ill formed packet ");
 
   TraceOptions options;
   uint64_t type = std::numeric_limits<uint64_t>::max();
   uint64_t buffersize = std::numeric_limits<uint64_t>::max();
if (buffersize == std::numeric_limits<uint64_t>::max() ||
       type != lldb::TraceType::eTraceTypeProcessorTrace) {
     LLDB_LOG(log, "Ill formed packet buffersize = {0} type = {1}", buffersize,
              type);
     return SendIllFormedResponse(packet, "JTrace:start: Ill formed packet ");
   }
 
   Status error;
   lldb::user_id_t uid = LLDB_INVALID_UID;
-  uid = m_debugged_process_sp->StartTrace(options, error);
+  uid = m_debugged_process_up->StartTrace(options, error);
   LLDB_LOG(log, "uid is {0} , error is {1}", uid, error.GetError());
   if (error.Fail())
     return SendErrorResponse(error.GetError());
 
   StreamGDBRemote response;
   response.Printf("%" PRIx64, uid);
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_jTraceStop(
     StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   if (!packet.ConsumeFront("jTraceStop:"))
     return SendIllFormedResponse(packet, "jTraceStop: Ill formed packet ");
 
   lldb::user_id_t uid = LLDB_INVALID_UID;
   lldb::tid_t tid = LLDB_INVALID_THREAD_ID;
 
   auto json_object = StructuredData::ParseJSON(packet.Peek());
 
   if (!json_object ||
       json_object->GetType() != lldb::eStructuredDataTypeDictionary)
     return SendIllFormedResponse(packet, "jTraceStop: Ill formed packet ");
 
   auto json_dict = json_object->GetAsDictionary();
 
   if (!json_dict->GetValueForKeyAsInteger("traceid", uid))
     return SendIllFormedResponse(packet, "jTraceStop: Ill formed packet ");
 
   json_dict->GetValueForKeyAsInteger("threadid", tid);
 
-  Status error = m_debugged_process_sp->StopTrace(uid, tid);
+  Status error = m_debugged_process_up->StopTrace(uid, tid);
 
   if (error.Fail())
     return SendErrorResponse(error.GetError());
 
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_jTraceConfigRead(
     StringExtractorGDBRemote &packet) {
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   if (!packet.ConsumeFront("jTraceConfigRead:"))
     return SendIllFormedResponse(packet,
                                  "jTraceConfigRead: Ill formed packet ");
 
   lldb::user_id_t uid = LLDB_INVALID_UID;
   lldb::tid_t threadid = LLDB_INVALID_THREAD_ID;
return SendIllFormedResponse(packet,
                                  "jTraceConfigRead: Ill formed packet ");
 
   json_dict->GetValueForKeyAsInteger("threadid", threadid);
 
   TraceOptions options;
   StreamGDBRemote response;
 
   options.setThreadID(threadid);
-  Status error = m_debugged_process_sp->GetTraceConfig(uid, options);
+  Status error = m_debugged_process_up->GetTraceConfig(uid, options);
 
   if (error.Fail())
     return SendErrorResponse(error.GetError());
 
   StreamGDBRemote escaped_response;
   StructuredData::Dictionary json_packet;
 
   json_packet.AddIntegerItem("type", options.getType());
GDBRemoteCommunicationServerLLGS::Handle_jTraceConfigRead(
   return SendPacketNoLock(escaped_response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_jTraceRead(
     StringExtractorGDBRemote &packet) {
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   enum PacketType { MetaData, BufferData };
   PacketType tracetype = MetaData;
 
   if (packet.ConsumeFront("jTraceBufferRead:"))
     tracetype = BufferData;
   else if (packet.ConsumeFront("jTraceMetaRead:"))
GDBRemoteCommunicationServerLLGS::Handle_jTraceRead(
   if (!buffer)
     return SendErrorResponse(0x78);
 
   StreamGDBRemote response;
   Status error;
   llvm::MutableArrayRef<uint8_t> buf(buffer.get(), byte_count);
 
   if (tracetype == BufferData)
-    error = m_debugged_process_sp->GetData(uid, tid, buf, offset);
+    error = m_debugged_process_up->GetData(uid, tid, buf, offset);
   else if (tracetype == MetaData)
-    error = m_debugged_process_sp->GetMetaData(uid, tid, buf, offset);
+    error = m_debugged_process_up->GetMetaData(uid, tid, buf, offset);
 
   if (error.Fail())
     return SendErrorResponse(error.GetError());
 
   for (auto i : buf)
     response.PutHex8(i);
 
   StreamGDBRemote escaped_response;
   escaped_response.PutEscapedBytes(response.GetData(), response.GetSize());
   return SendPacketNoLock(escaped_response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qProcessInfo(
     StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
-  lldb::pid_t pid = m_debugged_process_sp->GetID();
+  lldb::pid_t pid = m_debugged_process_up->GetID();
 
   if (pid == LLDB_INVALID_PROCESS_ID)
     return SendErrorResponse(1);
 
   ProcessInstanceInfo proc_info;
   if (!Host::GetProcessInfo(pid, proc_info))
     return SendErrorResponse(1);
 
   StreamString response;
   CreateProcessInfoResponse_DebugServerStyle(proc_info, response);
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qC(StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   // Make sure we set the current thread so g and p packets return
   // the data the gdb will expect.
-  lldb::tid_t tid = m_debugged_process_sp->GetCurrentThreadID();
+  lldb::tid_t tid = m_debugged_process_up->GetCurrentThreadID();
   SetCurrentThreadID(tid);
 
-  NativeThreadProtocolSP thread_sp = m_debugged_process_sp->GetCurrentThread();
+  NativeThreadProtocolSP thread_sp = m_debugged_process_up->GetCurrentThread();
   if (!thread_sp)
     return SendErrorResponse(69);
 
   StreamString response;
   response.Printf("QC%" PRIx64, thread_sp->GetID());
 
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_k(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   StopSTDIOForwarding();
 
-  if (!m_debugged_process_sp) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s No debugged process found.",
-          __FUNCTION__);
+  if (!m_debugged_process_up) {
+    LLDB_LOG(log, "No debugged process found.");
     return PacketResult::Success;
   }
 
-  Status error = m_debugged_process_sp->Kill();
-  if (error.Fail() && log)
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s Failed to kill debugged "
-                "process %" PRIu64 ": %s",
-                __FUNCTION__, m_debugged_process_sp->GetID(),
-                error.AsCString());
+  Status error = m_debugged_process_up->Kill();
+  if (error.Fail())
+    LLDB_LOG(log, "Failed to kill debugged process {0}: {1}",
+             m_debugged_process_up->GetID(), error);
 
   // No OK response for kill packet.
   // return SendOKResponse ();
   return PacketResult::Success;
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_QSetDisableASLR(

 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_C(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
   if (log)
     log->Printf("GDBRemoteCommunicationServerLLGS::%s called", __FUNCTION__);
 
   // Ensure we have a native process.
-  if (!m_debugged_process_sp) {
+  if (!m_debugged_process_up) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s no debugged process "
                   "shared pointer",
                   __FUNCTION__);
     return SendErrorResponse(0x36);
   }
 
   // Pull out the signal number.
ResumeAction action = {GetContinueThreadID(), StateType::eStateRunning,
                            static_cast<int>(signo)};
 
     // Add the action for the continue thread (or all threads when the continue
     // thread isn't present).
     resume_actions.Append(action);
   } else {
     // Send the signal to the process since we weren't targeting a specific
     // continue thread with the signal.
-    error = m_debugged_process_sp->Signal(signo);
+    error = m_debugged_process_up->Signal(signo);
     if (error.Fail()) {
-      if (log)
-        log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to send "
-                    "signal for process %" PRIu64 ": %s",
-                    __FUNCTION__, m_debugged_process_sp->GetID(),
-                    error.AsCString());
+      LLDB_LOG(log, "failed to send signal for process {0}: {1}",
+               m_debugged_process_up->GetID(), error);
 
       return SendErrorResponse(0x52);
     }
   }
 
   // Resume the threads.
-  error = m_debugged_process_sp->Resume(resume_actions);
+  error = m_debugged_process_up->Resume(resume_actions);
   if (error.Fail()) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to resume "
-                  "threads for process %" PRIu64 ": %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "failed to resume threads for process {0}: {1}",
+             m_debugged_process_up->GetID(), error);
 
     return SendErrorResponse(0x38);
   }
 
   // Don't send an "OK" packet; response is the stopped/exited message.
   return PacketResult::Success;
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_c(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
   if (log)
     log->Printf("GDBRemoteCommunicationServerLLGS::%s called", __FUNCTION__);
 
   packet.SetFilePos(packet.GetFilePos() + ::strlen("c"));
 
   // For now just support all continue.
   const bool has_continue_address = (packet.GetBytesLeft() > 0);
   if (has_continue_address) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s not implemented for "
-                  "c{address} variant [%s remains]",
-                  __FUNCTION__, packet.Peek());
+    LLDB_LOG(log, "not implemented for c[address] variant [{0} remains]",
+             packet.Peek());
     return SendUnimplementedResponse(packet.GetStringRef().c_str());
   }
 
   // Ensure we have a native process.
-  if (!m_debugged_process_sp) {
+  if (!m_debugged_process_up) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s no debugged process "
                   "shared pointer",
                   __FUNCTION__);
     return SendErrorResponse(0x36);
   }
 
   // Build the ResumeActionList
   ResumeActionList actions(StateType::eStateRunning, 0);
 
-  Status error = m_debugged_process_sp->Resume(actions);
+  Status error = m_debugged_process_up->Resume(actions);
   if (error.Fail()) {
-    if (log) {
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s c failed for process %" PRIu64
-          ": %s",
-          __FUNCTION__, m_debugged_process_sp->GetID(), error.AsCString());
-    }
+    LLDB_LOG(log, "c failed for process {0}: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(GDBRemoteServerError::eErrorResume);
   }
 
-  if (log)
-    log->Printf(
-        "GDBRemoteCommunicationServerLLGS::%s continued process %" PRIu64,
-        __FUNCTION__, m_debugged_process_sp->GetID());
-
+  LLDB_LOG(log, "continued process {0}", m_debugged_process_up->GetID());
   // No response required from continue.
   return PacketResult::Success;
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_vCont_actions(
     StringExtractorGDBRemote &packet) {
   StreamString response;
if (::strcmp(packet.Peek(), ";c") == 0) {
     return Handle_c(packet);
   } else if (::strcmp(packet.Peek(), ";s") == 0) {
     // Move past the ';', then do a simple 's'.
     packet.SetFilePos(packet.GetFilePos() + 1);
     return Handle_s(packet);
   }
 
   // Ensure we have a native process.
-  if (!m_debugged_process_sp) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s no debugged process "
-                  "shared pointer",
-                  __FUNCTION__);
+  if (!m_debugged_process_up) {
+    LLDB_LOG(log, "no debugged process");
     return SendErrorResponse(0x36);
   }
 
   ResumeActionList thread_actions;
 
   while (packet.GetBytesLeft() && *packet.Peek() == ';') {
     // Skip the semi-colon.
     packet.GetChar();
if (packet.GetBytesLeft() && (*packet.Peek() == ':')) {
       if (thread_action.tid == LLDB_INVALID_THREAD_ID)
         return SendIllFormedResponse(
             packet, "Could not parse thread number in vCont packet");
     }
 
     thread_actions.Append(thread_action);
   }
 
-  Status error = m_debugged_process_sp->Resume(thread_actions);
+  Status error = m_debugged_process_up->Resume(thread_actions);
   if (error.Fail()) {
-    if (log) {
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s vCont failed for "
-                  "process %" PRIu64 ": %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
-    }
+    LLDB_LOG(log, "vCont failed for process {0}: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(GDBRemoteServerError::eErrorResume);
   }
 
-  if (log)
-    log->Printf(
-        "GDBRemoteCommunicationServerLLGS::%s continued process %" PRIu64,
-        __FUNCTION__, m_debugged_process_sp->GetID());
-
+  LLDB_LOG(log, "continued process {0}", m_debugged_process_up->GetID());
   // No response required from vCont.
   return PacketResult::Success;
 }
 
 void GDBRemoteCommunicationServerLLGS::SetCurrentThreadID(lldb::tid_t tid) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
-  if (log)
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s setting current thread "
-                "id to %" PRIu64,
-                __FUNCTION__, tid);
+  LLDB_LOG(log, "setting current thread id to {0}", tid);
 
   m_current_tid = tid;
-  if (m_debugged_process_sp)
-    m_debugged_process_sp->SetCurrentThreadID(m_current_tid);
+  if (m_debugged_process_up)
+    m_debugged_process_up->SetCurrentThreadID(m_current_tid);
 }
 
 void GDBRemoteCommunicationServerLLGS::SetContinueThreadID(lldb::tid_t tid) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
-  if (log)
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s setting continue thread "
-                "id to %" PRIu64,
-                __FUNCTION__, tid);
+  LLDB_LOG(log, "setting continue thread id to {0}", tid);
 
   m_continue_tid = tid;
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_stop_reason(
     StringExtractorGDBRemote &packet) {
   // Handle the $? gdbremote command.
 
   // If no process, indicate error
-  if (!m_debugged_process_sp)
+  if (!m_debugged_process_up)
     return SendErrorResponse(02);
 
-  return SendStopReasonForState(m_debugged_process_sp->GetState());
+  return SendStopReasonForState(m_debugged_process_up->GetState());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::SendStopReasonForState(
     lldb::StateType process_state) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   switch (process_state) {
   case eStateAttaching:
   case eStateLaunching:
   case eStateRunning:
   case eStateStepping:
   case eStateDetached:
     // NOTE: gdb protocol doc looks like it should return $OK
     // when everything is running (i.e. no stopped result).
     return PacketResult::Success; // Ignore
 
   case eStateSuspended:
   case eStateStopped:
   case eStateCrashed: {
-    lldb::tid_t tid = m_debugged_process_sp->GetCurrentThreadID();
+    lldb::tid_t tid = m_debugged_process_up->GetCurrentThreadID();
     // Make sure we set the current thread so g and p packets return
     // the data the gdb will expect.
     SetCurrentThreadID(tid);
     return SendStopReplyPacketForThread(tid);
   }
 
   case eStateInvalid:
   case eStateUnloaded:
   case eStateExited:
-    return SendWResponse(m_debugged_process_sp.get());
+    return SendWResponse(m_debugged_process_up.get());
 
   default:
-    if (log) {
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  ", current state reporting not handled: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  StateAsCString(process_state));
-    }
+    LLDB_LOG(log, "pid {0}, current state reporting not handled: {1}",
+             m_debugged_process_up->GetID(), process_state);
     break;
   }
 
   return SendErrorResponse(0);
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qRegisterInfo(
     StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(68);
 
   // Ensure we have a thread.
-  NativeThreadProtocolSP thread_sp(m_debugged_process_sp->GetThreadAtIndex(0));
+  NativeThreadProtocolSP thread_sp(m_debugged_process_up->GetThreadAtIndex(0));
   if (!thread_sp)
     return SendErrorResponse(69);
 
   // Get the register context for the first thread.
   NativeRegisterContextSP reg_context_sp(thread_sp->GetRegisterContext());
   if (!reg_context_sp)
     return SendErrorResponse(69);
 

 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qfThreadInfo(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s() no process (%s), "
-                  "returning OK",
-                  __FUNCTION__,
-                  m_debugged_process_sp ? "invalid process id"
-                                        : "null m_debugged_process_sp");
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
+    LLDB_LOG(log, "no process ({0}), returning OK",
+             m_debugged_process_up ? "invalid process id"
+                                   : "null m_debugged_process_up");
     return SendOKResponse();
   }
 
   StreamGDBRemote response;
   response.PutChar('m');
 
-  if (log)
-    log->Printf(
-        "GDBRemoteCommunicationServerLLGS::%s() starting thread iteration",
-        __FUNCTION__);
-
+  LLDB_LOG(log, "starting thread iteration");
   NativeThreadProtocolSP thread_sp;
   uint32_t thread_index;
   for (thread_index = 0,
-      thread_sp = m_debugged_process_sp->GetThreadAtIndex(thread_index);
+      thread_sp = m_debugged_process_up->GetThreadAtIndex(thread_index);
        thread_sp; ++thread_index,
-      thread_sp = m_debugged_process_sp->GetThreadAtIndex(thread_index)) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s() iterated thread %" PRIu32
-          "(%s, tid=0x%" PRIx64 ")",
-          __FUNCTION__, thread_index, thread_sp ? "is not null" : "null",
+      thread_sp = m_debugged_process_up->GetThreadAtIndex(thread_index)) {
+    LLDB_LOG(log, "iterated thread {0}({1}, tid={2})", thread_index,
+             thread_sp ? "is not null" : "null",
              thread_sp ? thread_sp->GetID() : LLDB_INVALID_THREAD_ID);
     if (thread_index > 0)
       response.PutChar(',');
     response.Printf("%" PRIx64, thread_sp->GetID());
   }
 
-  if (log)
-    log->Printf(
-        "GDBRemoteCommunicationServerLLGS::%s() finished thread iteration",
-        __FUNCTION__);
-
+  LLDB_LOG(log, "finished thread iteration");
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qsThreadInfo(
     StringExtractorGDBRemote &packet) {
   // FIXME for now we return the full thread list in the initial packet and
   // always do nothing here.
if (log)
           "GDBRemoteCommunicationServerLLGS::%s failed, no thread available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Get the thread's register context.
   NativeRegisterContextSP reg_context_sp(thread_sp->GetRegisterContext());
   if (!reg_context_sp) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64 " tid %" PRIu64
-          " failed, no register context available for the thread",
-          __FUNCTION__, m_debugged_process_sp->GetID(), thread_sp->GetID());
+    LLDB_LOG(
+        log,
+        "pid {0} tid {1} failed, no register context available for the thread",
+        m_debugged_process_up->GetID(), thread_sp->GetID());
     return SendErrorResponse(0x15);
   }
 
   // Return the end of registers response if we've iterated one past the end of
   // the register set.
   if (reg_index >= reg_context_sp->GetUserRegisterCount()) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s failed, requested "
GDBRemoteCommunicationServerLLGS::Handle_P(StringExtractorGDBRemote &packet) {
 
   // Note debugserver would send an E30 here.
   if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != '='))
     return SendIllFormedResponse(
         packet, "P packet missing '=' char after register number");
 
   // Get process architecture.
   ArchSpec process_arch;
-  if (!m_debugged_process_sp ||
-      !m_debugged_process_sp->GetArchitecture(process_arch)) {
+  if (!m_debugged_process_up ||
+      !m_debugged_process_up->GetArchitecture(process_arch)) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to retrieve "
                   "inferior architecture",
                   __FUNCTION__);
     return SendErrorResponse(0x49);
   }
 
   // Parse out the value.
GDBRemoteCommunicationServerLLGS::Handle_P(StringExtractorGDBRemote &packet) {
 
   // Get the thread's register context.
   NativeRegisterContextSP reg_context_sp(thread_sp->GetRegisterContext());
   if (!reg_context_sp) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64 " tid %" PRIu64
           " failed, no register context available for the thread",
-          __FUNCTION__, m_debugged_process_sp->GetID(), thread_sp->GetID());
+          __FUNCTION__, m_debugged_process_up->GetID(), thread_sp->GetID());
     return SendErrorResponse(0x15);
   }
 
   const RegisterInfo *reg_info =
       reg_context_sp->GetRegisterInfoAtIndex(reg_index);
   if (!reg_info) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s failed, requested "
GDBRemoteCommunicationServerLLGS::Handle_P(StringExtractorGDBRemote &packet) {
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_H(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Parse out which variant of $H is requested.
GDBRemoteCommunicationServerLLGS::Handle_H(StringExtractorGDBRemote &packet) {
   // Parse out the thread number.
   // FIXME return a parse success/fail value.  All values are valid here.
   const lldb::tid_t tid =
       packet.GetHexMaxU64(false, std::numeric_limits<lldb::tid_t>::max());
 
   // Ensure we have the given thread when not specifying -1 (all threads) or 0
   // (any thread).
   if (tid != LLDB_INVALID_THREAD_ID && tid != 0) {
-    NativeThreadProtocolSP thread_sp(m_debugged_process_sp->GetThreadByID(tid));
+    NativeThreadProtocolSP thread_sp(m_debugged_process_up->GetThreadByID(tid));
     if (!thread_sp) {
       if (log)
         log->Printf("GDBRemoteCommunicationServerLLGS::%s failed, tid %" PRIu64
                     " not found",
                     __FUNCTION__, tid);
       return SendErrorResponse(0x15);
     }
   }
GDBRemoteCommunicationServerLLGS::Handle_H(StringExtractorGDBRemote &packet) {
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_I(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   packet.SetFilePos(::strlen("I"));

 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_interrupt(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
-          __FUNCTION__);
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
+    LLDB_LOG(log, "failed, no process available");
     return SendErrorResponse(0x15);
   }
 
   // Interrupt the process.
-  Status error = m_debugged_process_sp->Interrupt();
+  Status error = m_debugged_process_up->Interrupt();
   if (error.Fail()) {
-    if (log) {
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s failed for process %" PRIu64
-          ": %s",
-          __FUNCTION__, m_debugged_process_sp->GetID(), error.AsCString());
-    }
+    LLDB_LOG(log, "failed for process {0}: {1}", m_debugged_process_up->GetID(),
+             error);
     return SendErrorResponse(GDBRemoteServerError::eErrorResume);
   }
 
-  if (log)
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s stopped process %" PRIu64,
-                __FUNCTION__, m_debugged_process_sp->GetID());
+  LLDB_LOG(log, "stopped process {0}", m_debugged_process_up->GetID());
 
   // No response required from stop all.
   return PacketResult::Success;
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_memory_read(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Parse out the memory address.
GDBRemoteCommunicationServerLLGS::Handle_memory_read(
 
   // Allocate the response buffer.
   std::string buf(byte_count, '\0');
   if (buf.empty())
     return SendErrorResponse(0x78);
 
   // Retrieve the process memory.
   size_t bytes_read = 0;
-  Status error = m_debugged_process_sp->ReadMemoryWithoutTrap(
+  Status error = m_debugged_process_up->ReadMemoryWithoutTrap(
       read_addr, &buf[0], byte_count, bytes_read);
   if (error.Fail()) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
                   " mem 0x%" PRIx64 ": failed to read. Error: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), read_addr,
+                  __FUNCTION__, m_debugged_process_up->GetID(), read_addr,
                   error.AsCString());
     return SendErrorResponse(0x08);
   }
 
   if (bytes_read == 0) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
                   " mem 0x%" PRIx64 ": read 0 of %" PRIu64 " requested bytes",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), read_addr,
+                  __FUNCTION__, m_debugged_process_up->GetID(), read_addr,
                   byte_count);
     return SendErrorResponse(0x08);
   }
 
   StreamGDBRemote response;
   packet.SetFilePos(0);
   char kind = packet.GetChar('?');
   if (kind == 'x')
     response.PutEscapedBytes(buf.data(), byte_count);
   else {
     assert(kind == 'm');
     for (size_t i = 0; i < bytes_read; ++i)
       response.PutHex8(buf[i]);
   }
 
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_M(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Parse out the memory address.
if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != ','))
     return SendIllFormedResponse(packet, "Comma sep missing in M packet");
 
   // Get # bytes to read.
   if (packet.GetBytesLeft() < 1)
     return SendIllFormedResponse(packet, "Length missing in M packet");
 
   const uint64_t byte_count = packet.GetHexMaxU64(false, 0);
   if (byte_count == 0) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s nothing to write: "
-                  "zero-length packet",
-                  __FUNCTION__);
+    LLDB_LOG(log, "nothing to write: zero-length packet");
     return PacketResult::Success;
   }
 
   // Validate colon.
   if ((packet.GetBytesLeft() < 1) || (packet.GetChar() != ':'))
     return SendIllFormedResponse(
         packet, "Comma sep missing in M packet after byte length");
 
   // Allocate the conversion buffer.
   std::vector<uint8_t> buf(byte_count, 0);
   if (buf.empty())
     return SendErrorResponse(0x78);
 
   // Convert the hex memory write contents to bytes.
   StreamGDBRemote response;
   const uint64_t convert_count = packet.GetHexBytes(buf, 0);
   if (convert_count != byte_count) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " mem 0x%" PRIx64 ": asked to write %" PRIu64
-                  " bytes, but only found %" PRIu64 " to convert.",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), write_addr,
-                  byte_count, convert_count);
+    LLDB_LOG(log,
+             "pid {0} mem {1:x}: asked to write {2} bytes, but only found {3} "
+             "to convert.",
+             m_debugged_process_up->GetID(), write_addr, byte_count,
+             convert_count);
     return SendIllFormedResponse(packet, "M content byte length specified did "
                                          "not match hex-encoded content "
                                          "length");
   }
 
   // Write the process memory.
   size_t bytes_written = 0;
-  Status error = m_debugged_process_sp->WriteMemory(write_addr, &buf[0],
+  Status error = m_debugged_process_up->WriteMemory(write_addr, &buf[0],
                                                     byte_count, bytes_written);
   if (error.Fail()) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " mem 0x%" PRIx64 ": failed to write. Error: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), write_addr,
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} mem {1:x}: failed to write. Error: {2}",
+             m_debugged_process_up->GetID(), write_addr, error);
     return SendErrorResponse(0x09);
   }
 
   if (bytes_written == 0) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " mem 0x%" PRIx64 ": wrote 0 of %" PRIu64 " requested bytes",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), write_addr,
-                  byte_count);
+    LLDB_LOG(log, "pid {0} mem {1:x}: wrote 0 of {2} requested bytes",
+             m_debugged_process_up->GetID(), write_addr, byte_count);
     return SendErrorResponse(0x09);
   }
 
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qMemoryRegionInfoSupported(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   // Currently only the NativeProcessProtocol knows if it can handle a
   // qMemoryRegionInfoSupported
   // request, but we're not guaranteed to be attached to a process.  For now
   // we'll assume the
   // client only asks this when a process is being debugged.
 
   // Ensure we have a process running; otherwise, we can't figure this out
   // since we won't have a NativeProcessProtocol.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Test if we can get any region back when asking for the region around NULL.
   MemoryRegionInfo region_info;
   const Status error =
-      m_debugged_process_sp->GetMemoryRegionInfo(0, region_info);
+      m_debugged_process_up->GetMemoryRegionInfo(0, region_info);
   if (error.Fail()) {
     // We don't support memory region info collection for this
     // NativeProcessProtocol.
     return SendUnimplementedResponse("");
   }
 
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qMemoryRegionInfo(
     StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   // Ensure we have a process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   // Parse out the memory address.
   packet.SetFilePos(strlen("qMemoryRegionInfo:"));
   if (packet.GetBytesLeft() < 1)
     return SendIllFormedResponse(packet, "Too short qMemoryRegionInfo: packet");
 
   // Read the address.  Punting on validation.
   const lldb::addr_t read_addr = packet.GetHexMaxU64(false, 0);
 
   StreamGDBRemote response;
 
   // Get the memory region info for the target address.
   MemoryRegionInfo region_info;
   const Status error =
-      m_debugged_process_sp->GetMemoryRegionInfo(read_addr, region_info);
+      m_debugged_process_up->GetMemoryRegionInfo(read_addr, region_info);
   if (error.Fail()) {
     // Return the error message.
 
     response.PutCString("error:");
     response.PutCStringAsRawHex8(error.AsCString());
     response.PutChar(';');
   } else {
     // Range start and size.
GDBRemoteCommunicationServerLLGS::Handle_qMemoryRegionInfo(
   }
 
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_Z(StringExtractorGDBRemote &packet) {
   // Ensure we have a process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
-          __FUNCTION__);
+    LLDB_LOG(log, "failed, no process available");
     return SendErrorResponse(0x15);
   }
 
   // Parse out software or hardware breakpoint or watchpoint requested.
   packet.SetFilePos(strlen("Z"));
   if (packet.GetBytesLeft() < 1)
     return SendIllFormedResponse(
         packet, "Too short Z packet, missing software/hardware specifier");
const uint32_t size =
       packet.GetHexMaxU32(false, std::numeric_limits<uint32_t>::max());
   if (size == std::numeric_limits<uint32_t>::max())
     return SendIllFormedResponse(
         packet, "Malformed Z packet, failed to parse size argument");
 
   if (want_breakpoint) {
     // Try to set the breakpoint.
     const Status error =
-        m_debugged_process_sp->SetBreakpoint(addr, size, want_hardware);
+        m_debugged_process_up->SetBreakpoint(addr, size, want_hardware);
     if (error.Success())
       return SendOKResponse();
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to set breakpoint: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to set breakpoint: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x09);
   } else {
     // Try to set the watchpoint.
-    const Status error = m_debugged_process_sp->SetWatchpoint(
+    const Status error = m_debugged_process_up->SetWatchpoint(
         addr, size, watch_flags, want_hardware);
     if (error.Success())
       return SendOKResponse();
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to set watchpoint: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to set watchpoint: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x09);
   }
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_z(StringExtractorGDBRemote &packet) {
   // Ensure we have a process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
-          __FUNCTION__);
+    LLDB_LOG(log, "failed, no process available");
     return SendErrorResponse(0x15);
   }
 
   // Parse out software or hardware breakpoint or watchpoint requested.
   packet.SetFilePos(strlen("z"));
   if (packet.GetBytesLeft() < 1)
     return SendIllFormedResponse(
         packet, "Too short z packet, missing software/hardware specifier");
GDBRemoteCommunicationServerLLGS::Handle_z(StringExtractorGDBRemote &packet) {
   if (size == std::numeric_limits<uint32_t>::max ())
       return SendIllFormedResponse(packet, "Malformed z packet, failed to parse
   size argument");
   */
 
   if (want_breakpoint) {
     // Try to clear the breakpoint.
     const Status error =
-        m_debugged_process_sp->RemoveBreakpoint(addr, want_hardware);
+        m_debugged_process_up->RemoveBreakpoint(addr, want_hardware);
     if (error.Success())
       return SendOKResponse();
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to remove breakpoint: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to remove breakpoint: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x09);
   } else {
     // Try to clear the watchpoint.
-    const Status error = m_debugged_process_sp->RemoveWatchpoint(addr);
+    const Status error = m_debugged_process_up->RemoveWatchpoint(addr);
     if (error.Success())
       return SendOKResponse();
     Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to remove watchpoint: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to remove watchpoint: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x09);
   }
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_s(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
 
   // Ensure we have a process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x32);
   }
 
   // We first try to use a continue thread id.  If any one or any all set, use
   // the current thread.
   // Bail out if we don't have a thread id.
   lldb::tid_t tid = GetContinueThreadID();
   if (tid == 0 || tid == LLDB_INVALID_THREAD_ID)
     tid = GetCurrentThreadID();
   if (tid == LLDB_INVALID_THREAD_ID)
     return SendErrorResponse(0x33);
 
   // Double check that we have such a thread.
   // TODO investigate: on MacOSX we might need to do an UpdateThreads () here.
-  NativeThreadProtocolSP thread_sp = m_debugged_process_sp->GetThreadByID(tid);
+  NativeThreadProtocolSP thread_sp = m_debugged_process_up->GetThreadByID(tid);
   if (!thread_sp || thread_sp->GetID() != tid)
     return SendErrorResponse(0x33);
 
   // Create the step action for the given thread.
   ResumeAction action = {tid, eStateStepping, 0};
 
   // Setup the actions list.
   ResumeActionList actions;
   actions.Append(action);
 
   // All other threads stop while we're single stepping a thread.
   actions.SetDefaultThreadActionIfNeeded(eStateStopped, 0);
-  Status error = m_debugged_process_sp->Resume(actions);
+  Status error = m_debugged_process_up->Resume(actions);
   if (error.Fail()) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
                   " tid %" PRIu64 " Resume() failed with error: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(), tid,
+                  __FUNCTION__, m_debugged_process_up->GetID(), tid,
                   error.AsCString());
     return SendErrorResponse(0x49);
   }
 
   // No response here - the stop or exit will come from the resulting action.
   return PacketResult::Success;
 }
 
const uint64_t auxv_length =
       packet.GetHexMaxU64(false, std::numeric_limits<uint64_t>::max());
   if (auxv_length == std::numeric_limits<uint64_t>::max())
     return SendIllFormedResponse(packet,
                                  "qXfer:auxv:read:: packet missing length");
 
   // Grab the auxv data if we need it.
   if (!m_active_auxv_buffer_up) {
     // Make sure we have a valid process.
-    if (!m_debugged_process_sp ||
-        (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+    if (!m_debugged_process_up ||
+        (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
       if (log)
         log->Printf(
             "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
             __FUNCTION__);
       return SendErrorResponse(0x10);
     }
 
     // Grab the auxv data.
-    auto buffer_or_error = m_debugged_process_sp->GetAuxvData();
+    auto buffer_or_error = m_debugged_process_up->GetAuxvData();
     if (!buffer_or_error) {
       std::error_code ec = buffer_or_error.getError();
       LLDB_LOG(log, "no auxv data retrieved: {0}", ec.message());
       return SendErrorResponse(ec.value());
     }
     m_active_auxv_buffer_up = std::move(*buffer_or_error);
   }
 
if (!thread_sp) {
     else
       return SendIllFormedResponse(packet,
                                    "No thread was is set with the Hg packet");
   }
 
   // Grab the register context for the thread.
   NativeRegisterContextSP reg_context_sp(thread_sp->GetRegisterContext());
   if (!reg_context_sp) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64 " tid %" PRIu64
-          " failed, no register context available for the thread",
-          __FUNCTION__, m_debugged_process_sp->GetID(), thread_sp->GetID());
+    LLDB_LOG(
+        log,
+        "pid {0} tid {1} failed, no register context available for the thread",
+        m_debugged_process_up->GetID(), thread_sp->GetID());
     return SendErrorResponse(0x15);
   }
 
   // Save registers to a buffer.
   DataBufferSP register_data_sp;
   Status error = reg_context_sp->ReadAllRegisterValues(register_data_sp);
   if (error.Fail()) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to save all register values: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to save all register values: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x75);
   }
 
   // Allocate a new save id.
   const uint32_t save_id = GetNextSavedRegistersID();
   assert((m_saved_registers_map.find(save_id) == m_saved_registers_map.end()) &&
          "GetNextRegisterSaveID() returned an existing register save id");
 
GDBRemoteCommunicationServerLLGS::Handle_QRestoreRegisterState(
   // Parse out save id.
   packet.SetFilePos(strlen("QRestoreRegisterState:"));
   if (packet.GetBytesLeft() < 1)
     return SendIllFormedResponse(
         packet, "QRestoreRegisterState packet missing register save id");
 
   const uint32_t save_id = packet.GetU32(0);
   if (save_id == 0) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s QRestoreRegisterState "
-                  "packet has malformed save id, expecting decimal uint32_t",
-                  __FUNCTION__);
+    LLDB_LOG(log, "QRestoreRegisterState packet has malformed save id, "
+                  "expecting decimal uint32_t");
     return SendErrorResponse(0x76);
   }
 
   // Get the thread to use.
   NativeThreadProtocolSP thread_sp = GetThreadFromSuffix(packet);
   if (!thread_sp) {
     if (m_thread_suffix_supported)
       return SendIllFormedResponse(
           packet, "No thread specified in QRestoreRegisterState packet");
     else
       return SendIllFormedResponse(packet,
                                    "No thread was is set with the Hg packet");
   }
 
   // Grab the register context for the thread.
   NativeRegisterContextSP reg_context_sp(thread_sp->GetRegisterContext());
   if (!reg_context_sp) {
-    if (log)
-      log->Printf(
-          "GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64 " tid %" PRIu64
-          " failed, no register context available for the thread",
-          __FUNCTION__, m_debugged_process_sp->GetID(), thread_sp->GetID());
+    LLDB_LOG(
+        log,
+        "pid {0} tid {1} failed, no register context available for the thread",
+        m_debugged_process_up->GetID(), thread_sp->GetID());
     return SendErrorResponse(0x15);
   }
 
   // Retrieve register state buffer, then remove from the list.
   DataBufferSP register_data_sp;
   {
     std::lock_guard<std::mutex> guard(m_saved_registers_mutex);
 
     // Find the register set buffer for the given save id.
     auto it = m_saved_registers_map.find(save_id);
     if (it == m_saved_registers_map.end()) {
-      if (log)
-        log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                    " does not have a register set save buffer for id %" PRIu32,
-                    __FUNCTION__, m_debugged_process_sp->GetID(), save_id);
+      LLDB_LOG(log,
+               "pid {0} does not have a register set save buffer for id {1}",
+               m_debugged_process_up->GetID(), save_id);
       return SendErrorResponse(0x77);
     }
     register_data_sp = it->second;
 
     // Remove it from the map.
     m_saved_registers_map.erase(it);
   }
 
   Status error = reg_context_sp->WriteAllRegisterValues(register_data_sp);
   if (error.Fail()) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s pid %" PRIu64
-                  " failed to restore all register values: %s",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
-                  error.AsCString());
+    LLDB_LOG(log, "pid {0} failed to restore all register values: {1}",
+             m_debugged_process_up->GetID(), error);
     return SendErrorResponse(0x77);
   }
 
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_vAttach(
if (error.Fail()) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to attach to "
                   "pid %" PRIu64 ": %s\n",
                   __FUNCTION__, pid, error.AsCString());
     return SendErrorResponse(0x01);
   }
 
   // Notify we attached by sending a stop packet.
-  return SendStopReasonForState(m_debugged_process_sp->GetState());
+  return SendStopReasonForState(m_debugged_process_up->GetState());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_D(StringExtractorGDBRemote &packet) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   StopSTDIOForwarding();
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)) {
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)) {
     if (log)
       log->Printf(
           "GDBRemoteCommunicationServerLLGS::%s failed, no process available",
           __FUNCTION__);
     return SendErrorResponse(0x15);
   }
 
   lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
 
   // Consume the ';' after D.
   packet.SetFilePos(1);
   if (packet.GetBytesLeft()) {
     if (packet.GetChar() != ';')
       return SendIllFormedResponse(packet, "D missing expected ';'");
 
     // Grab the PID from which we will detach (assume hex encoding).
     pid = packet.GetU32(LLDB_INVALID_PROCESS_ID, 16);
     if (pid == LLDB_INVALID_PROCESS_ID)
       return SendIllFormedResponse(packet, "D failed to parse the process id");
   }
 
-  if (pid != LLDB_INVALID_PROCESS_ID && m_debugged_process_sp->GetID() != pid) {
+  if (pid != LLDB_INVALID_PROCESS_ID && m_debugged_process_up->GetID() != pid) {
     return SendIllFormedResponse(packet, "Invalid pid");
   }
 
-  const Status error = m_debugged_process_sp->Detach();
+  const Status error = m_debugged_process_up->Detach();
   if (error.Fail()) {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to detach from "
                   "pid %" PRIu64 ": %s\n",
-                  __FUNCTION__, m_debugged_process_sp->GetID(),
+                  __FUNCTION__, m_debugged_process_up->GetID(),
                   error.AsCString());
     return SendErrorResponse(0x01);
   }
 
   return SendOKResponse();
 }
 
 GDBRemoteCommunication::PacketResult

 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_jThreadsInfo(
     StringExtractorGDBRemote &) {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS | LIBLLDB_LOG_THREAD));
 
   // Ensure we have a debugged process.
-  if (!m_debugged_process_sp ||
-      (m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID))
+  if (!m_debugged_process_up ||
+      (m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID))
     return SendErrorResponse(50);
-
-  if (log)
-    log->Printf("GDBRemoteCommunicationServerLLGS::%s preparing packet for pid "
-                "%" PRIu64,
-                __FUNCTION__, m_debugged_process_sp->GetID());
+  LLDB_LOG(log, "preparing packet for pid {0}", m_debugged_process_up->GetID());
 
   StreamString response;
   const bool threads_with_valid_stop_info_only = false;
   JSONArray::SP threads_array_sp = GetJSONThreadsInfo(
-      *m_debugged_process_sp, threads_with_valid_stop_info_only);
+      *m_debugged_process_up, threads_with_valid_stop_info_only);
   if (!threads_array_sp) {
-    if (log)
-      log->Printf("GDBRemoteCommunicationServerLLGS::%s failed to prepare a "
-                  "packet for pid %" PRIu64,
-                  __FUNCTION__, m_debugged_process_sp->GetID());
+    LLDB_LOG(log, "failed to prepare a packet for pid {0}",
+             m_debugged_process_up->GetID());
     return SendErrorResponse(52);
   }
 
   threads_array_sp->Write(response);
   StreamGDBRemote escaped_response;
   escaped_response.PutEscapedBytes(response.GetData(), response.GetSize());
   return SendPacketNoLock(escaped_response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qWatchpointSupportInfo(
     StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)
+  if (!m_debugged_process_up ||
+      m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)
     return SendErrorResponse(68);
 
   packet.SetFilePos(strlen("qWatchpointSupportInfo"));
   if (packet.GetBytesLeft() == 0)
     return SendOKResponse();
   if (packet.GetChar() != ':')
     return SendErrorResponse(67);
 
-  auto hw_debug_cap = m_debugged_process_sp->GetHardwareDebugSupportInfo();
+  auto hw_debug_cap = m_debugged_process_up->GetHardwareDebugSupportInfo();
 
   StreamGDBRemote response;
   if (hw_debug_cap == llvm::None)
     response.Printf("num:0;");
   else
     response.Printf("num:%d;", hw_debug_cap->second);
 
   return SendPacketNoLock(response.GetString());
 }
 
 GDBRemoteCommunication::PacketResult
 GDBRemoteCommunicationServerLLGS::Handle_qFileLoadAddress(
     StringExtractorGDBRemote &packet) {
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp ||
-      m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)
+  if (!m_debugged_process_up ||
+      m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)
     return SendErrorResponse(67);
 
   packet.SetFilePos(strlen("qFileLoadAddress:"));
   if (packet.GetBytesLeft() == 0)
     return SendErrorResponse(68);
 
   std::string file_name;
   packet.GetHexByteString(file_name);
 
   lldb::addr_t file_load_address = LLDB_INVALID_ADDRESS;
   Status error =
-      m_debugged_process_sp->GetFileLoadAddress(file_name, file_load_address);
+      m_debugged_process_up->GetFileLoadAddress(file_name, file_load_address);
   if (error.Fail())
     return SendErrorResponse(69);
 
   if (file_load_address == LLDB_INVALID_ADDRESS)
     return SendErrorResponse(1); // File not loaded
 
   StreamGDBRemote response;
   response.PutHex64(file_load_address);
while (packet.GetBytesLeft() > 0) {
     if (separator == '\0')
       break; // End of string
     if (separator != ';')
       return SendIllFormedResponse(packet, "Invalid separator,"
                                             " expected semicolon.");
   }
 
   // Fail if we don't have a current process.
-  if (!m_debugged_process_sp)
+  if (!m_debugged_process_up)
     return SendErrorResponse(68);
 
-  Status error = m_debugged_process_sp->IgnoreSignals(signals);
+  Status error = m_debugged_process_up->IgnoreSignals(signals);
   if (error.Fail())
     return SendErrorResponse(69);
 
   return SendOKResponse();
 }
 
 void GDBRemoteCommunicationServerLLGS::MaybeCloseInferiorTerminalConnection() {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
void GDBRemoteCommunicationServerLLGS::MaybeCloseInferiorTerminalConnection() {
   }
 }
 
 NativeThreadProtocolSP GDBRemoteCommunicationServerLLGS::GetThreadFromSuffix(
     StringExtractorGDBRemote &packet) {
   NativeThreadProtocolSP thread_sp;
 
   // We have no thread if we don't have a process.
-  if (!m_debugged_process_sp ||
-      m_debugged_process_sp->GetID() == LLDB_INVALID_PROCESS_ID)
+  if (!m_debugged_process_up ||
+      m_debugged_process_up->GetID() == LLDB_INVALID_PROCESS_ID)
     return thread_sp;
 
   // If the client hasn't asked for thread suffix support, there will not be a
   // thread suffix.
   // Use the current thread in that case.
   if (!m_thread_suffix_supported) {
     const lldb::tid_t current_tid = GetCurrentThreadID();
     if (current_tid == LLDB_INVALID_THREAD_ID)
       return thread_sp;
     else if (current_tid == 0) {
       // Pick a thread.
-      return m_debugged_process_sp->GetThreadAtIndex(0);
+      return m_debugged_process_up->GetThreadAtIndex(0);
     } else
-      return m_debugged_process_sp->GetThreadByID(current_tid);
+      return m_debugged_process_up->GetThreadByID(current_tid);
   }
 
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_THREAD));
 
   // Parse out the ';'.
   if (packet.GetBytesLeft() < 1 || packet.GetChar() != ';') {
     if (log)
       log->Printf("GDBRemoteCommunicationServerLLGS::%s gdb-remote parse "
if (log)
                   "error: expected 'thread:' but not found, packet contents = "
                   "'%s'",
                   __FUNCTION__, packet.GetStringRef().c_str());
     return thread_sp;
   }
   packet.SetFilePos(packet.GetFilePos() + strlen("thread:"));
   const lldb::tid_t tid = packet.GetHexMaxU64(false, 0);
   if (tid != 0)
-    return m_debugged_process_sp->GetThreadByID(tid);
+    return m_debugged_process_up->GetThreadByID(tid);
 
   return thread_sp;
 }
 
 lldb::tid_t GDBRemoteCommunicationServerLLGS::GetCurrentThreadID() const {
   if (m_current_tid == 0 || m_current_tid == LLDB_INVALID_THREAD_ID) {
     // Use whatever the debug process says is the current thread id
     // since the protocol either didn't specify or specified we want
     // any/all threads marked as the current thread.
-    if (!m_debugged_process_sp)
+    if (!m_debugged_process_up)
       return LLDB_INVALID_THREAD_ID;
-    return m_debugged_process_sp->GetCurrentThreadID();
+    return m_debugged_process_up->GetCurrentThreadID();
   }
   // Use the specific current thread id set by the gdb remote protocol.
   return m_current_tid;
 }
 
 uint32_t GDBRemoteCommunicationServerLLGS::GetNextSavedRegistersID() {
   std::lock_guard<std::mutex> guard(m_saved_registers_mutex);
   return m_next_saved_registers_id++;
 }
 
 void GDBRemoteCommunicationServerLLGS::ClearProcessSpecificData() {
   Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PROCESS));
 
   LLDB_LOG(log, "clearing auxv buffer: {0}", m_active_auxv_buffer_up.get());
   m_active_auxv_buffer_up.reset();
 }
 
 FileSpec
 GDBRemoteCommunicationServerLLGS::FindModuleFile(const std::string &module_path,
                                                  const ArchSpec &arch) {
-  if (m_debugged_process_sp) {
+  if (m_debugged_process_up) {
     FileSpec file_spec;
-    if (m_debugged_process_sp
+    if (m_debugged_process_up
             ->GetLoadedModuleFileSpec(module_path.c_str(), file_spec)
             .Success()) {
       if (file_spec.Exists())
         return file_spec;
     }
   }
 
   return GDBRemoteCommunicationServerCommon::FindModuleFile(module_path, arch);
 }

tools/lldb-server/lldb-gdbserver.cpp

 #if defined(__linux__)
 typedef process_linux::NativeProcessLinux::Factory NativeProcessFactory;
 #elif defined(__NetBSD__)
 typedef process_netbsd::NativeProcessNetBSD::Factory NativeProcessFactory;
 #else
 // Dummy implementation to make sure the code compiles
 class NativeProcessFactory : public NativeProcessProtocol::Factory {
 public:
-  llvm::Expected<NativeProcessProtocolSP>
+  llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
   Launch(ProcessLaunchInfo &launch_info,
          NativeProcessProtocol::NativeDelegate &delegate,
          MainLoop &mainloop) const override {
     llvm_unreachable("Not implemented");
   }
-  llvm::Expected<NativeProcessProtocolSP>
+  llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
   Attach(lldb::pid_t pid, NativeProcessProtocol::NativeDelegate &delegate,
          MainLoop &mainloop) const override {
     llvm_unreachable("Not implemented");
   }
 };
 #endif
 }