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//===-- ThreadMinidump.cpp --------------------------------------*- C++ -*-===//
//
// 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 "ThreadMinidump.h"
#include "ProcessMinidump.h"
#include "RegisterContextMinidump_ARM.h"
#include "RegisterContextMinidump_ARM64.h"
#include "RegisterContextMinidump_x86_32.h"
#include "RegisterContextMinidump_x86_64.h"
#include "Plugins/Process/Utility/RegisterContextLinux_i386.h"
#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h"
#include "Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h"
#include "Plugins/Process/elf-core/RegisterUtilities.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Unwind.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/Log.h"
using namespace lldb;
using namespace lldb_private;
using namespace minidump;
ThreadMinidump::ThreadMinidump(Process &process, const MinidumpThread &td,
llvm::ArrayRef<uint8_t> gpregset_data)
: Thread(process, td.thread_id), m_thread_reg_ctx_sp(),
m_gpregset_data(gpregset_data) {}
ThreadMinidump::~ThreadMinidump() {}
void ThreadMinidump::RefreshStateAfterStop() {}
RegisterContextSP ThreadMinidump::GetRegisterContext() {
if (!m_reg_context_sp) {
m_reg_context_sp = CreateRegisterContextForFrame(nullptr);
}
return m_reg_context_sp;
}
RegisterContextSP
ThreadMinidump::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;
ProcessMinidump *process =
static_cast<ProcessMinidump *>(GetProcess().get());
ArchSpec arch = process->GetArchitecture();
RegisterInfoInterface *reg_interface = nullptr;
// TODO write other register contexts and add them here
switch (arch.GetMachine()) {
case llvm::Triple::x86: {
reg_interface = new RegisterContextLinux_i386(arch);
lldb::DataBufferSP buf =
ConvertMinidumpContext_x86_32(m_gpregset_data, reg_interface);
DataExtractor gpregset(buf, lldb::eByteOrderLittle, 4);
m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64(
*this, reg_interface, gpregset, {}));
break;
}
case llvm::Triple::x86_64: {
reg_interface = new RegisterContextLinux_x86_64(arch);
lldb::DataBufferSP buf =
ConvertMinidumpContext_x86_64(m_gpregset_data, reg_interface);
DataExtractor gpregset(buf, lldb::eByteOrderLittle, 8);
m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64(
*this, reg_interface, gpregset, {}));
break;
}
case llvm::Triple::aarch64: {
DataExtractor data(m_gpregset_data.data(), m_gpregset_data.size(),
lldb::eByteOrderLittle, 8);
m_thread_reg_ctx_sp.reset(new RegisterContextMinidump_ARM64(*this, data));
break;
}
case llvm::Triple::arm: {
DataExtractor data(m_gpregset_data.data(), m_gpregset_data.size(),
lldb::eByteOrderLittle, 8);
const bool apple = arch.GetTriple().getVendor() == llvm::Triple::Apple;
m_thread_reg_ctx_sp.reset(
new RegisterContextMinidump_ARM(*this, data, apple));
break;
}
default:
break;
}
reg_ctx_sp = m_thread_reg_ctx_sp;
} else if (m_unwinder_ap) {
reg_ctx_sp = m_unwinder_ap->CreateRegisterContextForFrame(frame);
}
return reg_ctx_sp;
}
bool ThreadMinidump::CalculateStopInfo() { return false; }
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