2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
//===-- ThreadMemory.cpp ----------------------------------------------*- C++
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//-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Plugins/Process/Utility/ThreadMemory.h"
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#include "Plugins/Process/Utility/RegisterContextThreadMemory.h"
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#include "lldb/Target/OperatingSystem.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/StopInfo.h"
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#include "lldb/Target/Unwind.h"
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using namespace lldb;
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using namespace lldb_private;
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ThreadMemory::ThreadMemory(Process &process, tid_t tid,
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const ValueObjectSP &thread_info_valobj_sp)
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: Thread(process, tid), m_backing_thread_sp(),
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m_thread_info_valobj_sp(thread_info_valobj_sp), m_name(), m_queue() {}
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ThreadMemory::ThreadMemory(Process &process, lldb::tid_t tid,
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llvm::StringRef name, llvm::StringRef queue,
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lldb::addr_t register_data_addr)
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: Thread(process, tid), m_backing_thread_sp(), m_thread_info_valobj_sp(),
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m_name(name), m_queue(queue), m_register_data_addr(register_data_addr) {}
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ThreadMemory::~ThreadMemory() { DestroyThread(); }
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void ThreadMemory::WillResume(StateType resume_state) {
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if (m_backing_thread_sp)
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m_backing_thread_sp->WillResume(resume_state);
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}
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void ThreadMemory::ClearStackFrames() {
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if (m_backing_thread_sp)
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m_backing_thread_sp->ClearStackFrames();
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Thread::ClearStackFrames();
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}
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RegisterContextSP ThreadMemory::GetRegisterContext() {
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if (!m_reg_context_sp)
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m_reg_context_sp.reset(
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new RegisterContextThreadMemory(*this, m_register_data_addr));
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return m_reg_context_sp;
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}
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RegisterContextSP
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ThreadMemory::CreateRegisterContextForFrame(StackFrame *frame) {
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RegisterContextSP reg_ctx_sp;
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uint32_t concrete_frame_idx = 0;
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if (frame)
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concrete_frame_idx = frame->GetConcreteFrameIndex();
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if (concrete_frame_idx == 0) {
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reg_ctx_sp = GetRegisterContext();
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} else {
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Unwind *unwinder = GetUnwinder();
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if (unwinder != nullptr)
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reg_ctx_sp = unwinder->CreateRegisterContextForFrame(frame);
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}
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return reg_ctx_sp;
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}
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bool ThreadMemory::CalculateStopInfo() {
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if (m_backing_thread_sp) {
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lldb::StopInfoSP backing_stop_info_sp(
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m_backing_thread_sp->GetPrivateStopInfo());
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if (backing_stop_info_sp &&
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backing_stop_info_sp->IsValidForOperatingSystemThread(*this)) {
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backing_stop_info_sp->SetThread(shared_from_this());
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SetStopInfo(backing_stop_info_sp);
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return true;
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}
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} else {
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ProcessSP process_sp(GetProcess());
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if (process_sp) {
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OperatingSystem *os = process_sp->GetOperatingSystem();
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if (os) {
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SetStopInfo(os->CreateThreadStopReason(this));
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return true;
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}
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}
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}
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return false;
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}
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void ThreadMemory::RefreshStateAfterStop() {
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if (m_backing_thread_sp)
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return m_backing_thread_sp->RefreshStateAfterStop();
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if (m_reg_context_sp)
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m_reg_context_sp->InvalidateAllRegisters();
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}
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