POSIXThread.h revision 263363 
1//===-- POSIXThread.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_POSIXThread_H_
11#define liblldb_POSIXThread_H_
12
13// C Includes
14// C++ Includes
15#include <memory>
16#include <string>
17
18// Other libraries and framework includes
19#include "lldb/Target/Thread.h"
20#include "RegisterContextPOSIX.h"
21
22class ProcessMessage;
23class ProcessMonitor;
24class POSIXBreakpointProtocol;
25
26//------------------------------------------------------------------------------
27// @class POSIXThread
28// @brief Abstraction of a POSIX thread.
29class POSIXThread
30    : public lldb_private::Thread
31{
32public:
33    POSIXThread(lldb_private::Process &process, lldb::tid_t tid);
34
35    virtual ~POSIXThread();
36
37    void
38    RefreshStateAfterStop();
39
40    virtual void
41    WillResume(lldb::StateType resume_state);
42
43    // This notifies the thread when a private stop occurs.
44    virtual void
45    DidStop ();
46
47    const char *
48    GetInfo();
49
50    void
51    SetName (const char *name);
52
53    const char *
54    GetName ();
55
56    virtual lldb::RegisterContextSP
57    GetRegisterContext();
58
59    virtual lldb::RegisterContextSP
60    CreateRegisterContextForFrame (lldb_private::StackFrame *frame);
61
62    virtual lldb::addr_t
63    GetThreadPointer ();
64
65    //--------------------------------------------------------------------------
66    // These functions provide a mapping from the register offset
67    // back to the register index or name for use in debugging or log
68    // output.
69
70    unsigned
71    GetRegisterIndexFromOffset(unsigned offset);
72
73    const char *
74    GetRegisterName(unsigned reg);
75
76    const char *
77    GetRegisterNameFromOffset(unsigned offset);
78
79    //--------------------------------------------------------------------------
80    // These methods form a specialized interface to POSIX threads.
81    //
82    bool Resume();
83
84    void Notify(const ProcessMessage &message);
85
86    //--------------------------------------------------------------------------
87    // These methods provide an interface to watchpoints
88    //
89    bool EnableHardwareWatchpoint(lldb_private::Watchpoint *wp);
90
91    bool DisableHardwareWatchpoint(lldb_private::Watchpoint *wp);
92
93    uint32_t NumSupportedHardwareWatchpoints();
94
95    uint32_t FindVacantWatchpointIndex();
96
97protected:
98    POSIXBreakpointProtocol *
99    GetPOSIXBreakpointProtocol ()
100    {
101        if (!m_reg_context_sp)
102            m_reg_context_sp = GetRegisterContext();
103        return m_posix_thread;
104    }
105
106    std::unique_ptr<lldb_private::StackFrame> m_frame_ap;
107
108    lldb::BreakpointSiteSP m_breakpoint;
109
110    bool m_thread_name_valid;
111    std::string m_thread_name;
112    POSIXBreakpointProtocol *m_posix_thread;
113
114    ProcessMonitor &
115    GetMonitor();
116
117    virtual bool
118    CalculateStopInfo();
119
120    void BreakNotify(const ProcessMessage &message);
121    void WatchNotify(const ProcessMessage &message);
122    virtual void TraceNotify(const ProcessMessage &message);
123    void LimboNotify(const ProcessMessage &message);
124    void SignalNotify(const ProcessMessage &message);
125    void SignalDeliveredNotify(const ProcessMessage &message);
126    void CrashNotify(const ProcessMessage &message);
127    void ThreadNotify(const ProcessMessage &message);
128    void ExitNotify(const ProcessMessage &message);
129    void ExecNotify(const ProcessMessage &message);
130
131    lldb_private::Unwind *
132    GetUnwinder();
133};
134
135#endif // #ifndef liblldb_POSIXThread_H_
136