| //===-- HistoryThread.cpp -------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-private.h" |
| |
| #include "Plugins/Process/Utility/HistoryThread.h" |
| |
| #include "Plugins/Process/Utility/HistoryUnwind.h" |
| #include "Plugins/Process/Utility/RegisterContextHistory.h" |
| |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/StackFrameList.h" |
| #include "lldb/Utility/Log.h" |
| |
| #include <memory> |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| // Constructor |
| |
| HistoryThread::HistoryThread(lldb_private::Process &process, lldb::tid_t tid, |
| std::vector<lldb::addr_t> pcs, |
| bool pcs_are_call_addresses) |
| : Thread(process, tid, true), m_framelist_mutex(), m_framelist(), |
| m_pcs(pcs), 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_up = |
| std::make_unique<HistoryUnwind>(*this, pcs, pcs_are_call_addresses); |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); |
| LLDB_LOGF(log, "%p HistoryThread::HistoryThread", static_cast<void *>(this)); |
| } |
| |
| // Destructor |
| |
| HistoryThread::~HistoryThread() { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT)); |
| LLDB_LOGF(log, "%p HistoryThread::~HistoryThread (tid=0x%" PRIx64 ")", |
| static_cast<void *>(this), GetID()); |
| DestroyThread(); |
| } |
| |
| lldb::RegisterContextSP HistoryThread::GetRegisterContext() { |
| RegisterContextSP rctx; |
| if (m_pcs.size() > 0) { |
| rctx = std::make_shared<RegisterContextHistory>( |
| *this, 0, GetProcess()->GetAddressByteSize(), m_pcs[0]); |
| } |
| return rctx; |
| } |
| |
| lldb::RegisterContextSP |
| HistoryThread::CreateRegisterContextForFrame(StackFrame *frame) { |
| return m_unwinder_up->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() == nullptr) { |
| m_framelist = |
| std::make_shared<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; |
| } |