lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h

   1 //===-- ThreadGDBRemote.h ---------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H
  10 #define LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H
  11
  12 #include <string>
  13
  14 #include "lldb/Target/Thread.h"
  15 #include "lldb/Utility/StructuredData.h"
  16
  17 #include "GDBRemoteRegisterContext.h"
  18
  19 class StringExtractor;
  20
  21 namespace lldb_private {
  22 class Process;
  23
  24 namespace process_gdb_remote {
  25
  26 class ProcessGDBRemote;
  27
  28 class ThreadGDBRemote : public Thread {
  29 public:
  30   ThreadGDBRemote(Process &process, lldb::tid_t tid);
  31
  32   ~ThreadGDBRemote() override;
  33
  34   void WillResume(lldb::StateType resume_state) override;
  35
  36   void RefreshStateAfterStop() override;
  37
  38   const char *GetName() override;
  39
  40   const char *GetQueueName() override;
  41
  42   lldb::QueueKind GetQueueKind() override;
  43
  44   lldb::queue_id_t GetQueueID() override;
  45
  46   lldb::QueueSP GetQueue() override;
  47
  48   lldb::addr_t GetQueueLibdispatchQueueAddress() override;
  49
  50   void SetQueueLibdispatchQueueAddress(lldb::addr_t dispatch_queue_t) override;
  51
  52   bool ThreadHasQueueInformation() const override;
  53
  54   lldb::RegisterContextSP GetRegisterContext() override;
  55
  56   lldb::RegisterContextSP
  57   CreateRegisterContextForFrame(StackFrame *frame) override;
  58
  59   void Dump(Log *log, uint32_t index);
  60
  61   static bool ThreadIDIsValid(lldb::tid_t thread);
  62
  63   bool ShouldStop(bool &step_more);
  64
  65   const char *GetBasicInfoAsString();
  66
  67   void SetName(const char *name) override {
  68     if (name && name[0])
  69       m_thread_name.assign(name);
  70     else
  71       m_thread_name.clear();
  72   }
  73
  74   lldb::addr_t GetThreadDispatchQAddr() { return m_thread_dispatch_qaddr; }
  75
  76   void SetThreadDispatchQAddr(lldb::addr_t thread_dispatch_qaddr) {
  77     m_thread_dispatch_qaddr = thread_dispatch_qaddr;
  78   }
  79
  80   void ClearQueueInfo();
  81
  82   void SetQueueInfo(std::string &&queue_name, lldb::QueueKind queue_kind,
  83                     uint64_t queue_serial, lldb::addr_t dispatch_queue_t,
  84                     lldb_private::LazyBool associated_with_libdispatch_queue);
  85
  86   lldb_private::LazyBool GetAssociatedWithLibdispatchQueue() override;
  87
  88   void SetAssociatedWithLibdispatchQueue(
  89       lldb_private::LazyBool associated_with_libdispatch_queue) override;
  90
  91   StructuredData::ObjectSP FetchThreadExtendedInfo() override;
  92
  93 protected:
  94   friend class ProcessGDBRemote;
  95
  96   std::string m_thread_name;
  97   std::string m_dispatch_queue_name;
  98   lldb::addr_t m_thread_dispatch_qaddr;
  99   lldb::addr_t m_dispatch_queue_t;
 100   lldb::QueueKind
 101       m_queue_kind; // Queue info from stop reply/stop info for thread
 102   uint64_t
 103       m_queue_serial_number; // Queue info from stop reply/stop info for thread
 104   lldb_private::LazyBool m_associated_with_libdispatch_queue;
 105
 106   GDBRemoteDynamicRegisterInfoSP m_reg_info_sp;
 107
 108   bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data);
 109
 110   bool PrivateSetRegisterValue(uint32_t reg, uint64_t regval);
 111
 112   bool CachedQueueInfoIsValid() const {
 113     return m_queue_kind != lldb::eQueueKindUnknown;
 114   }
 115   void SetStopInfoFromPacket(StringExtractor &stop_packet, uint32_t stop_id);
 116
 117   bool CalculateStopInfo() override;
 118
 119   llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
 120   GetSiginfo(size_t max_size) const override;
 121 };
 122
 123 } // namespace process_gdb_remote
 124 } // namespace lldb_private
 125
 126 #endif // LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_THREADGDBREMOTE_H