lldb/tools/debugserver/source/MacOSX/MachThreadList.h

   1 //===-- MachThreadList.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 //  Created by Greg Clayton on 6/19/07.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLDB_TOOLS_DEBUGSERVER_SOURCE_MACOSX_MACHTHREADLIST_H
  14 #define LLDB_TOOLS_DEBUGSERVER_SOURCE_MACOSX_MACHTHREADLIST_H
  15
  16 #include "MachThread.h"
  17 #include "ThreadInfo.h"
  18
  19 class DNBThreadResumeActions;
  20
  21 class MachThreadList {
  22 public:
  23   MachThreadList();
  24   ~MachThreadList();
  25
  26   void Clear();
  27   void Dump() const;
  28   bool GetRegisterValue(nub_thread_t tid, uint32_t set, uint32_t reg,
  29                         DNBRegisterValue *reg_value) const;
  30   bool SetRegisterValue(nub_thread_t tid, uint32_t set, uint32_t reg,
  31                         const DNBRegisterValue *reg_value) const;
  32   nub_size_t GetRegisterContext(nub_thread_t tid, void *buf, size_t buf_len);
  33   nub_size_t SetRegisterContext(nub_thread_t tid, const void *buf,
  34                                 size_t buf_len);
  35   uint32_t SaveRegisterState(nub_thread_t tid);
  36   bool RestoreRegisterState(nub_thread_t tid, uint32_t save_id);
  37   const char *GetThreadInfo(nub_thread_t tid) const;
  38   void ProcessWillResume(MachProcess *process,
  39                          const DNBThreadResumeActions &thread_actions);
  40   uint32_t ProcessDidStop(MachProcess *process);
  41   bool NotifyException(MachException::Data &exc);
  42   bool ShouldStop(bool &step_more);
  43   const char *GetName(nub_thread_t tid);
  44   nub_state_t GetState(nub_thread_t tid);
  45   nub_thread_t SetCurrentThread(nub_thread_t tid);
  46
  47   ThreadInfo::QoS GetRequestedQoS(nub_thread_t tid, nub_addr_t tsd,
  48                                   uint64_t dti_qos_class_index);
  49   nub_addr_t GetPThreadT(nub_thread_t tid);
  50   nub_addr_t GetDispatchQueueT(nub_thread_t tid);
  51   nub_addr_t
  52   GetTSDAddressForThread(nub_thread_t tid,
  53                          uint64_t plo_pthread_tsd_base_address_offset,
  54                          uint64_t plo_pthread_tsd_base_offset,
  55                          uint64_t plo_pthread_tsd_entry_size);
  56
  57   bool GetThreadStoppedReason(nub_thread_t tid,
  58                               struct DNBThreadStopInfo *stop_info) const;
  59   void DumpThreadStoppedReason(nub_thread_t tid) const;
  60   bool GetIdentifierInfo(nub_thread_t tid,
  61                          thread_identifier_info_data_t *ident_info);
  62   nub_size_t NumThreads() const;
  63   nub_thread_t ThreadIDAtIndex(nub_size_t idx) const;
  64   nub_thread_t CurrentThreadID();
  65   void CurrentThread(MachThreadSP &threadSP);
  66   void NotifyBreakpointChanged(const DNBBreakpoint *bp);
  67   uint32_t EnableHardwareBreakpoint(const DNBBreakpoint *bp) const;
  68   bool DisableHardwareBreakpoint(const DNBBreakpoint *bp) const;
  69   uint32_t EnableHardwareWatchpoint(const DNBBreakpoint *wp) const;
  70   bool DisableHardwareWatchpoint(const DNBBreakpoint *wp) const;
  71   uint32_t NumSupportedHardwareWatchpoints() const;
  72
  73   uint32_t GetThreadIndexForThreadStoppedWithSignal(const int signo) const;
  74
  75   MachThreadSP GetThreadByID(nub_thread_t tid) const;
  76
  77   MachThreadSP GetThreadByMachPortNumber(thread_t mach_port_number) const;
  78   nub_thread_t GetThreadIDByMachPortNumber(thread_t mach_port_number) const;
  79   thread_t GetMachPortNumberByThreadID(nub_thread_t globally_unique_id) const;
  80
  81 protected:
  82   typedef std::vector<MachThreadSP> collection;
  83   typedef collection::iterator iterator;
  84   typedef collection::const_iterator const_iterator;
  85
  86   enum class HardwareBreakpointAction {
  87     EnableWatchpoint,
  88     DisableWatchpoint,
  89     EnableBreakpoint,
  90     DisableBreakpoint,
  91   };
  92
  93   uint32_t DoHardwareBreakpointAction(const DNBBreakpoint *bp,
  94                                       HardwareBreakpointAction action) const;
  95
  96   uint32_t UpdateThreadList(MachProcess *process, bool update,
  97                             collection *num_threads = NULL);
  98   //  const_iterator  FindThreadByID (thread_t tid) const;
  99
 100   collection m_threads;
 101   mutable PThreadMutex m_threads_mutex;
 102   MachThreadSP m_current_thread;
 103   bool m_is_64_bit;
 104 };
 105
 106 #endif // LLDB_TOOLS_DEBUGSERVER_SOURCE_MACOSX_MACHTHREADLIST_H