1*0b57cec5SDimitry Andric //===-- ThreadMemory.cpp --------------------------------------------------===//
2*0b57cec5SDimitry Andric //
3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information.
5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*0b57cec5SDimitry Andric //
7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===//
8*0b57cec5SDimitry Andric
9*0b57cec5SDimitry Andric #include "Plugins/Process/Utility/ThreadMemory.h"
10*0b57cec5SDimitry Andric
11*0b57cec5SDimitry Andric #include "Plugins/Process/Utility/RegisterContextThreadMemory.h"
12*0b57cec5SDimitry Andric #include "lldb/Target/OperatingSystem.h"
13*0b57cec5SDimitry Andric #include "lldb/Target/Process.h"
14*0b57cec5SDimitry Andric #include "lldb/Target/RegisterContext.h"
15*0b57cec5SDimitry Andric #include "lldb/Target/StopInfo.h"
16*0b57cec5SDimitry Andric #include "lldb/Target/Unwind.h"
17*0b57cec5SDimitry Andric
18*0b57cec5SDimitry Andric #include <memory>
19*0b57cec5SDimitry Andric
20*0b57cec5SDimitry Andric using namespace lldb;
21*0b57cec5SDimitry Andric using namespace lldb_private;
22*0b57cec5SDimitry Andric
ThreadMemory(Process & process,tid_t tid,const ValueObjectSP & thread_info_valobj_sp)23*0b57cec5SDimitry Andric ThreadMemory::ThreadMemory(Process &process, tid_t tid,
24*0b57cec5SDimitry Andric const ValueObjectSP &thread_info_valobj_sp)
25*0b57cec5SDimitry Andric : Thread(process, tid), m_backing_thread_sp(),
26*0b57cec5SDimitry Andric m_thread_info_valobj_sp(thread_info_valobj_sp), m_name(), m_queue(),
27*0b57cec5SDimitry Andric m_register_data_addr(LLDB_INVALID_ADDRESS) {}
28*0b57cec5SDimitry Andric
ThreadMemory(Process & process,lldb::tid_t tid,llvm::StringRef name,llvm::StringRef queue,lldb::addr_t register_data_addr)29*0b57cec5SDimitry Andric ThreadMemory::ThreadMemory(Process &process, lldb::tid_t tid,
30*0b57cec5SDimitry Andric llvm::StringRef name, llvm::StringRef queue,
31*0b57cec5SDimitry Andric lldb::addr_t register_data_addr)
32*0b57cec5SDimitry Andric : Thread(process, tid), m_backing_thread_sp(), m_thread_info_valobj_sp(),
33*0b57cec5SDimitry Andric m_name(std::string(name)), m_queue(std::string(queue)),
34*0b57cec5SDimitry Andric m_register_data_addr(register_data_addr) {}
35*0b57cec5SDimitry Andric
~ThreadMemory()36*0b57cec5SDimitry Andric ThreadMemory::~ThreadMemory() { DestroyThread(); }
37*0b57cec5SDimitry Andric
WillResume(StateType resume_state)38*0b57cec5SDimitry Andric void ThreadMemory::WillResume(StateType resume_state) {
39*0b57cec5SDimitry Andric if (m_backing_thread_sp)
40*0b57cec5SDimitry Andric m_backing_thread_sp->WillResume(resume_state);
41*0b57cec5SDimitry Andric }
42*0b57cec5SDimitry Andric
ClearStackFrames()43*0b57cec5SDimitry Andric void ThreadMemory::ClearStackFrames() {
44*0b57cec5SDimitry Andric if (m_backing_thread_sp)
45*0b57cec5SDimitry Andric m_backing_thread_sp->ClearStackFrames();
46*0b57cec5SDimitry Andric Thread::ClearStackFrames();
47*0b57cec5SDimitry Andric }
48*0b57cec5SDimitry Andric
GetRegisterContext()49*0b57cec5SDimitry Andric RegisterContextSP ThreadMemory::GetRegisterContext() {
50*0b57cec5SDimitry Andric if (!m_reg_context_sp)
51*0b57cec5SDimitry Andric m_reg_context_sp = std::make_shared<RegisterContextThreadMemory>(
52*0b57cec5SDimitry Andric *this, m_register_data_addr);
53*0b57cec5SDimitry Andric return m_reg_context_sp;
54*0b57cec5SDimitry Andric }
55*0b57cec5SDimitry Andric
56*0b57cec5SDimitry Andric RegisterContextSP
CreateRegisterContextForFrame(StackFrame * frame)57*0b57cec5SDimitry Andric ThreadMemory::CreateRegisterContextForFrame(StackFrame *frame) {
58*0b57cec5SDimitry Andric uint32_t concrete_frame_idx = 0;
59*0b57cec5SDimitry Andric
60*0b57cec5SDimitry Andric if (frame)
61*0b57cec5SDimitry Andric concrete_frame_idx = frame->GetConcreteFrameIndex();
62*0b57cec5SDimitry Andric
63*0b57cec5SDimitry Andric if (concrete_frame_idx == 0)
64*0b57cec5SDimitry Andric return GetRegisterContext();
65*0b57cec5SDimitry Andric return GetUnwinder().CreateRegisterContextForFrame(frame);
66*0b57cec5SDimitry Andric }
67*0b57cec5SDimitry Andric
CalculateStopInfo()68*0b57cec5SDimitry Andric bool ThreadMemory::CalculateStopInfo() {
69*0b57cec5SDimitry Andric if (m_backing_thread_sp) {
70*0b57cec5SDimitry Andric lldb::StopInfoSP backing_stop_info_sp(
71*0b57cec5SDimitry Andric m_backing_thread_sp->GetPrivateStopInfo());
72*0b57cec5SDimitry Andric if (backing_stop_info_sp &&
73*0b57cec5SDimitry Andric backing_stop_info_sp->IsValidForOperatingSystemThread(*this)) {
74*0b57cec5SDimitry Andric backing_stop_info_sp->SetThread(shared_from_this());
75*0b57cec5SDimitry Andric SetStopInfo(backing_stop_info_sp);
76*0b57cec5SDimitry Andric return true;
77*0b57cec5SDimitry Andric }
78*0b57cec5SDimitry Andric } else {
79*0b57cec5SDimitry Andric ProcessSP process_sp(GetProcess());
80*0b57cec5SDimitry Andric
81*0b57cec5SDimitry Andric if (process_sp) {
82*0b57cec5SDimitry Andric OperatingSystem *os = process_sp->GetOperatingSystem();
83*0b57cec5SDimitry Andric if (os) {
84*0b57cec5SDimitry Andric SetStopInfo(os->CreateThreadStopReason(this));
85*0b57cec5SDimitry Andric return true;
86*0b57cec5SDimitry Andric }
87*0b57cec5SDimitry Andric }
88*0b57cec5SDimitry Andric }
89*0b57cec5SDimitry Andric return false;
90*0b57cec5SDimitry Andric }
91*0b57cec5SDimitry Andric
RefreshStateAfterStop()92*0b57cec5SDimitry Andric void ThreadMemory::RefreshStateAfterStop() {
93*0b57cec5SDimitry Andric if (m_backing_thread_sp)
94*0b57cec5SDimitry Andric return m_backing_thread_sp->RefreshStateAfterStop();
95*0b57cec5SDimitry Andric
96*0b57cec5SDimitry Andric if (m_reg_context_sp)
97*0b57cec5SDimitry Andric m_reg_context_sp->InvalidateAllRegisters();
98*0b57cec5SDimitry Andric }
99*0b57cec5SDimitry Andric