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//===-- HistoryThread.cpp ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/lldb-private.h"
#include "Plugins/Process/Utility/HistoryUnwind.h"
#include "Plugins/Process/Utility/HistoryThread.h"
#include "Plugins/Process/Utility/RegisterContextHistory.h"
#include "lldb/Core/Log.h"
#include "lldb/Target/StackFrameList.h"
#include "lldb/Target/Process.h"
using namespace lldb;
using namespace lldb_private;
// Constructor
HistoryThread::HistoryThread(lldb_private::Process &process, lldb::tid_t tid, std::vector<lldb::addr_t> pcs,
uint32_t stop_id, bool stop_id_is_valid)
: Thread(process, tid, true),
m_framelist_mutex(),
m_framelist(),
m_pcs(pcs),
m_stop_id(stop_id),
m_stop_id_is_valid(stop_id_is_valid),
m_extended_unwind_token(LLDB_INVALID_ADDRESS),
m_queue_name(),
m_thread_name(),
m_originating_unique_thread_id(tid),
m_queue_id(LLDB_INVALID_QUEUE_ID)
{
m_unwinder_ap.reset(new HistoryUnwind(*this, pcs, stop_id_is_valid));
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
if (log)
log->Printf("%p HistoryThread::HistoryThread", static_cast<void *>(this));
}
// Destructor
HistoryThread::~HistoryThread ()
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
if (log)
log->Printf ("%p HistoryThread::~HistoryThread (tid=0x%" PRIx64 ")",
static_cast<void*>(this), GetID());
DestroyThread();
}
lldb::RegisterContextSP
HistoryThread::GetRegisterContext ()
{
RegisterContextSP rctx ;
if (m_pcs.size() > 0)
{
rctx.reset (new RegisterContextHistory (*this, 0, GetProcess()->GetAddressByteSize(), m_pcs[0]));
}
return rctx;
}
lldb::RegisterContextSP
HistoryThread::CreateRegisterContextForFrame (StackFrame *frame)
{
return m_unwinder_ap->CreateRegisterContextForFrame (frame);
}
lldb::StackFrameListSP
HistoryThread::GetStackFrameList ()
{
// FIXME do not throw away the lock after we acquire it..
std::unique_lock<std::mutex> lock(m_framelist_mutex);
lock.unlock();
if (m_framelist.get() == NULL)
{
m_framelist.reset (new StackFrameList (*this, StackFrameListSP(), true));
}
return m_framelist;
}
uint32_t
HistoryThread::GetExtendedBacktraceOriginatingIndexID ()
{
if (m_originating_unique_thread_id != LLDB_INVALID_THREAD_ID)
{
if (GetProcess()->HasAssignedIndexIDToThread (m_originating_unique_thread_id))
{
return GetProcess()->AssignIndexIDToThread (m_originating_unique_thread_id);
}
}
return LLDB_INVALID_THREAD_ID;
}
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