contrib/llvm/tools/lldb/include/lldb/Target/ThreadPlanTracer.h

   1 //===-- ThreadPlanTracer.h --------------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef liblldb_ThreadPlanTracer_h_
  11 #define liblldb_ThreadPlanTracer_h_
  12
  13 // C Includes
  14 // C++ Includes
  15 // Other libraries and framework includes
  16 // Project includes
  17 #include "lldb/lldb-private.h"
  18 #include "lldb/Core/RegisterValue.h"
  19 #include "lldb/Symbol/TaggedASTType.h"
  20 #include "lldb/Target/Thread.h"
  21
  22 namespace lldb_private {
  23
  24 class ThreadPlanTracer
  25 {
  26 friend class ThreadPlan;
  27
  28 public:
  29
  30     typedef enum ThreadPlanTracerStyle
  31     {
  32         eLocation = 0,
  33         eStateChange,
  34         eCheckFrames,
  35         ePython
  36     } ThreadPlanTracerStyle;
  37     ThreadPlanTracer (Thread &thread, lldb::StreamSP &stream_sp);
  38     ThreadPlanTracer (Thread &thread);
  39
  40     virtual ~ThreadPlanTracer()
  41     {
  42     }
  43
  44     virtual void TracingStarted ()
  45     {
  46
  47     }
  48
  49     virtual void TracingEnded ()
  50     {
  51
  52     }
  53
  54     bool
  55     EnableTracing(bool value)
  56     {
  57         bool old_value = m_enabled;
  58         m_enabled = value;
  59         if (old_value == false && value == true)
  60             TracingStarted();
  61         else if (old_value == true && value == false)
  62             TracingEnded();
  63
  64         return old_value;
  65     }
  66
  67     bool
  68     TracingEnabled()
  69     {
  70         return m_enabled;
  71     }
  72
  73     bool
  74     EnableSingleStep (bool value)
  75     {
  76         bool old_value = m_single_step;
  77         m_single_step = value;
  78         return old_value;
  79     }
  80
  81     bool
  82     SingleStepEnabled ()
  83     {
  84         return m_single_step;
  85     }
  86
  87 protected:
  88     Thread &m_thread;
  89
  90     Stream *
  91     GetLogStream ();
  92
  93
  94
  95     virtual void Log();
  96
  97 private:
  98     bool
  99     TracerExplainsStop ();
 100
 101     bool m_single_step;
 102     bool m_enabled;
 103     lldb::StreamSP m_stream_sp;
 104 };
 105
 106 class ThreadPlanAssemblyTracer : public ThreadPlanTracer
 107 {
 108 public:
 109     ThreadPlanAssemblyTracer (Thread &thread, lldb::StreamSP &stream_sp);
 110     ThreadPlanAssemblyTracer (Thread &thread);
 111     virtual ~ThreadPlanAssemblyTracer ();
 112     virtual void TracingStarted ();
 113     virtual void TracingEnded ();
 114     virtual void Log();
 115 private:
 116
 117     Disassembler *
 118     GetDisassembler ();
 119
 120     TypeFromUser
 121     GetIntPointerType();
 122
 123     lldb::DisassemblerSP    m_disassembler_sp;
 124     TypeFromUser            m_intptr_type;
 125     std::vector<RegisterValue> m_register_values;
 126     lldb::DataBufferSP      m_buffer_sp;
 127 };
 128
 129 } // namespace lldb_private
 130
 131 #endif  // liblldb_ThreadPlanTracer_h_