ThreadGDBRemote.h

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//===-- ThreadGDBRemote.h ---------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H
#define LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H
 
#include <string>
 
#include "lldb/Target/Thread.h"
#include "lldb/Utility/StructuredData.h"
 
#include "GDBRemoteRegisterContext.h"
 
class StringExtractor;
 
namespace lldb_private {
class Process;
 
namespace process_gdb_remote {
 
class ProcessGDBRemote;
 
class ThreadGDBRemote : public Thread {
public:
  ThreadGDBRemote(Process &process, lldb::tid_t tid);
 
  ~ThreadGDBRemote() override;
 
  void WillResume(lldb::StateType resume_state) override;
 
  void RefreshStateAfterStop() override;
 
  const char *GetName() override;
 
  const char *GetQueueName() override;
 
  lldb::QueueKind GetQueueKind() override;
 
  lldb::queue_id_t GetQueueID() override;
 
  lldb::QueueSP GetQueue() override;
 
  lldb::addr_t GetQueueLibdispatchQueueAddress() override;
 
  void SetQueueLibdispatchQueueAddress(lldb::addr_t dispatch_queue_t) override;
 
  bool ThreadHasQueueInformation() const override;
 
  lldb::RegisterContextSP GetRegisterContext() override;
 
  lldb::RegisterContextSP
  CreateRegisterContextForFrame(StackFrame *frame) override;
 
  void Dump(Log *log, uint32_t index);
 
  static bool ThreadIDIsValid(lldb::tid_t thread);
 
  bool ShouldStop(bool &step_more);
 
  const char *GetBasicInfoAsString();
 
  void SetName(const char *name) override {
    if (name && name[0])
      m_thread_name.assign(name);
    else
      m_thread_name.clear();
  }
 
  lldb::addr_t GetThreadDispatchQAddr() { return m_thread_dispatch_qaddr; }
 
  void SetThreadDispatchQAddr(lldb::addr_t thread_dispatch_qaddr) {
    m_thread_dispatch_qaddr = thread_dispatch_qaddr;
  }
 
  void ClearQueueInfo();
 
  void SetQueueInfo(std::string &&queue_name, lldb::QueueKind queue_kind,
                    uint64_t queue_serial, lldb::addr_t dispatch_queue_t,
                    lldb_private::LazyBool associated_with_libdispatch_queue);
 
  lldb_private::LazyBool GetAssociatedWithLibdispatchQueue() override;
 
  void SetAssociatedWithLibdispatchQueue(
      lldb_private::LazyBool associated_with_libdispatch_queue) override;
 
  StructuredData::ObjectSP FetchThreadExtendedInfo() override;
 
protected:
  friend class ProcessGDBRemote;
 
  std::string m_thread_name;
  std::string m_dispatch_queue_name;
  lldb::addr_t m_thread_dispatch_qaddr;
  lldb::addr_t m_dispatch_queue_t;
  lldb::QueueKind
      m_queue_kind; // Queue info from stop reply/stop info for thread
  uint64_t
      m_queue_serial_number; // Queue info from stop reply/stop info for thread
  lldb_private::LazyBool m_associated_with_libdispatch_queue;
 
  GDBRemoteDynamicRegisterInfoSP m_reg_info_sp;
 
  bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data);
 
  bool PrivateSetRegisterValue(uint32_t reg, uint64_t regval);
 
  bool CachedQueueInfoIsValid() const {
    return m_queue_kind != lldb::eQueueKindUnknown;
  }
  void SetStopInfoFromPacket(StringExtractor &stop_packet, uint32_t stop_id);
 
  bool CalculateStopInfo() override;
 
  llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
  GetSiginfo(size_t max_size) const override;
};
 
} // namespace process_gdb_remote
} // namespace lldb_private
 
#endif // LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H