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//===-- ThreadFreeBSDKernel.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 "ThreadFreeBSDKernel.h"
#include "lldb/Target/Unwind.h"
#include "lldb/Utility/Log.h"
#include "Plugins/Process/Utility/RegisterContextFreeBSD_i386.h"
#include "Plugins/Process/Utility/RegisterContextFreeBSD_x86_64.h"
#include "Plugins/Process/Utility/RegisterInfoPOSIX_arm64.h"
#include "ProcessFreeBSDKernel.h"
#include "RegisterContextFreeBSDKernel_arm64.h"
#include "RegisterContextFreeBSDKernel_i386.h"
#include "RegisterContextFreeBSDKernel_x86_64.h"
#include "ThreadFreeBSDKernel.h"
using namespace lldb;
using namespace lldb_private;
ThreadFreeBSDKernel::ThreadFreeBSDKernel(Process &process, lldb::tid_t tid,
lldb::addr_t pcb_addr,
std::string thread_name)
: Thread(process, tid), m_thread_name(std::move(thread_name)),
m_pcb_addr(pcb_addr) {}
ThreadFreeBSDKernel::~ThreadFreeBSDKernel() {}
void ThreadFreeBSDKernel::RefreshStateAfterStop() {}
lldb::RegisterContextSP ThreadFreeBSDKernel::GetRegisterContext() {
if (!m_reg_context_sp)
m_reg_context_sp = CreateRegisterContextForFrame(nullptr);
return m_reg_context_sp;
}
lldb::RegisterContextSP
ThreadFreeBSDKernel::CreateRegisterContextForFrame(StackFrame *frame) {
RegisterContextSP reg_ctx_sp;
uint32_t concrete_frame_idx = 0;
if (frame)
concrete_frame_idx = frame->GetConcreteFrameIndex();
if (concrete_frame_idx == 0) {
if (m_thread_reg_ctx_sp)
return m_thread_reg_ctx_sp;
ProcessFreeBSDKernel *process =
static_cast<ProcessFreeBSDKernel *>(GetProcess().get());
ArchSpec arch = process->GetTarget().GetArchitecture();
switch (arch.GetMachine()) {
case llvm::Triple::aarch64:
m_thread_reg_ctx_sp =
std::make_shared<RegisterContextFreeBSDKernel_arm64>(
*this, std::make_unique<RegisterInfoPOSIX_arm64>(arch, 0),
m_pcb_addr);
break;
case llvm::Triple::x86:
m_thread_reg_ctx_sp = std::make_shared<RegisterContextFreeBSDKernel_i386>(
*this, new RegisterContextFreeBSD_i386(arch), m_pcb_addr);
break;
case llvm::Triple::x86_64:
m_thread_reg_ctx_sp =
std::make_shared<RegisterContextFreeBSDKernel_x86_64>(
*this, new RegisterContextFreeBSD_x86_64(arch), m_pcb_addr);
break;
default:
assert(false && "Unsupported architecture passed to ThreadFreeBSDKernel");
break;
}
reg_ctx_sp = m_thread_reg_ctx_sp;
} else {
reg_ctx_sp = GetUnwinder().CreateRegisterContextForFrame(frame);
}
return reg_ctx_sp;
}
bool ThreadFreeBSDKernel::CalculateStopInfo() { return false; }
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