HistoryThread.cpp revision 269024 
1//===-- HistoryThread.cpp ---------------------------------------*- 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#include "lldb/lldb-private.h"
11
12#include "Plugins/Process/Utility/HistoryUnwind.h"
13#include "Plugins/Process/Utility/HistoryThread.h"
14#include "Plugins/Process/Utility/RegisterContextHistory.h"
15
16#include "lldb/Core/Log.h"
17#include "lldb/Target/StackFrameList.h"
18#include "lldb/Target/Process.h"
19
20using namespace lldb;
21using namespace lldb_private;
22
23HistoryThread::HistoryThread (lldb_private::Process &process,
24                              lldb::tid_t tid,
25                              std::vector<lldb::addr_t> pcs,
26                              uint32_t stop_id,
27                              bool stop_id_is_valid) :
28        Thread (process, tid),
29        m_framelist_mutex(),
30        m_framelist(),
31        m_pcs (pcs),
32        m_stop_id (stop_id),
33        m_stop_id_is_valid (stop_id_is_valid),
34        m_extended_unwind_token (LLDB_INVALID_ADDRESS),
35        m_queue_name (),
36        m_thread_name (),
37        m_originating_unique_thread_id (tid),
38        m_queue_id (LLDB_INVALID_QUEUE_ID)
39{
40    m_unwinder_ap.reset (new HistoryUnwind (*this, pcs, stop_id, stop_id_is_valid));
41    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
42    if (log)
43        log->Printf ("%p HistoryThread::HistoryThread", this);
44}
45
46HistoryThread::~HistoryThread ()
47{
48    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
49    if (log)
50        log->Printf ("%p HistoryThread::~HistoryThread (tid=0x%" PRIx64 ")", this, GetID());
51    DestroyThread();
52}
53
54lldb::RegisterContextSP
55HistoryThread::GetRegisterContext ()
56{
57    RegisterContextSP rctx ;
58    if (m_pcs.size() > 0)
59    {
60        rctx.reset (new RegisterContextHistory (*this, 0, GetProcess()->GetAddressByteSize(), m_pcs[0]));
61    }
62    return rctx;
63
64}
65
66lldb::RegisterContextSP
67HistoryThread::CreateRegisterContextForFrame (StackFrame *frame)
68{
69    return m_unwinder_ap->CreateRegisterContextForFrame (frame);
70}
71
72lldb::StackFrameListSP
73HistoryThread::GetStackFrameList ()
74{
75    Mutex::Locker (m_framelist_mutex);
76    if (m_framelist.get() == NULL)
77    {
78        m_framelist.reset (new StackFrameList (*this, StackFrameListSP(), true));
79    }
80
81    return m_framelist;
82}
83
84uint32_t
85HistoryThread::GetExtendedBacktraceOriginatingIndexID ()
86{
87    if (m_originating_unique_thread_id != LLDB_INVALID_THREAD_ID)
88    {
89        if (GetProcess()->HasAssignedIndexIDToThread (m_originating_unique_thread_id))
90        {
91            return GetProcess()->AssignIndexIDToThread (m_originating_unique_thread_id);
92        }
93    }
94    return LLDB_INVALID_THREAD_ID;
95}
96