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