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| //===-- ValueObjectConstResult.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 "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Core/ValueObjectDynamicValue.h"
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/ExecutionContextScope.h"
#include "lldb/Target/Process.h"
#include "lldb/Utility/DataBuffer.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/Scalar.h"
namespace lldb_private {
class Module;
}
using namespace lldb;
using namespace lldb_private;
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
ByteOrder byte_order,
uint32_t addr_byte_size,
lldb::addr_t address) {
return (new ValueObjectConstResult(exe_scope, byte_order, addr_byte_size,
address))
->GetSP();
}
ValueObjectConstResult::ValueObjectConstResult(ExecutionContextScope *exe_scope,
ByteOrder byte_order,
uint32_t addr_byte_size,
lldb::addr_t address)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0),
m_impl(this, address) {
SetIsConstant();
SetValueIsValid(true);
m_data.SetByteOrder(byte_order);
m_data.SetAddressByteSize(addr_byte_size);
SetAddressTypeOfChildren(eAddressTypeLoad);
}
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
const CompilerType &compiler_type,
ConstString name,
const DataExtractor &data,
lldb::addr_t address) {
return (new ValueObjectConstResult(exe_scope, compiler_type, name, data,
address))
->GetSP();
}
ValueObjectConstResult::ValueObjectConstResult(
ExecutionContextScope *exe_scope, const CompilerType &compiler_type,
ConstString name, const DataExtractor &data, lldb::addr_t address)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0),
m_impl(this, address) {
m_data = data;
if (!m_data.GetSharedDataBuffer()) {
DataBufferSP shared_data_buffer(
new DataBufferHeap(data.GetDataStart(), data.GetByteSize()));
m_data.SetData(shared_data_buffer);
}
m_value.GetScalar() = (uintptr_t)m_data.GetDataStart();
m_value.SetValueType(Value::eValueTypeHostAddress);
m_value.SetCompilerType(compiler_type);
m_name = name;
SetIsConstant();
SetValueIsValid(true);
SetAddressTypeOfChildren(eAddressTypeLoad);
}
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
const CompilerType &compiler_type,
ConstString name,
const lldb::DataBufferSP &data_sp,
lldb::ByteOrder data_byte_order,
uint32_t data_addr_size,
lldb::addr_t address) {
return (new ValueObjectConstResult(exe_scope, compiler_type, name, data_sp,
data_byte_order, data_addr_size, address))
->GetSP();
}
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
Value &value,
ConstString name,
Module *module) {
return (new ValueObjectConstResult(exe_scope, value, name, module))->GetSP();
}
ValueObjectConstResult::ValueObjectConstResult(
ExecutionContextScope *exe_scope, const CompilerType &compiler_type,
ConstString name, const lldb::DataBufferSP &data_sp,
lldb::ByteOrder data_byte_order, uint32_t data_addr_size,
lldb::addr_t address)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0),
m_impl(this, address) {
m_data.SetByteOrder(data_byte_order);
m_data.SetAddressByteSize(data_addr_size);
m_data.SetData(data_sp);
m_value.GetScalar() = (uintptr_t)data_sp->GetBytes();
m_value.SetValueType(Value::eValueTypeHostAddress);
// m_value.SetContext(Value::eContextTypeClangType, compiler_type);
m_value.SetCompilerType(compiler_type);
m_name = name;
SetIsConstant();
SetValueIsValid(true);
SetAddressTypeOfChildren(eAddressTypeLoad);
}
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
const CompilerType &compiler_type,
ConstString name,
lldb::addr_t address,
AddressType address_type,
uint32_t addr_byte_size) {
return (new ValueObjectConstResult(exe_scope, compiler_type, name, address,
address_type, addr_byte_size))
->GetSP();
}
ValueObjectConstResult::ValueObjectConstResult(
ExecutionContextScope *exe_scope, const CompilerType &compiler_type,
ConstString name, lldb::addr_t address, AddressType address_type,
uint32_t addr_byte_size)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0),
m_impl(this, address) {
m_value.GetScalar() = address;
m_data.SetAddressByteSize(addr_byte_size);
m_value.GetScalar().GetData(m_data, addr_byte_size);
// m_value.SetValueType(Value::eValueTypeHostAddress);
switch (address_type) {
case eAddressTypeInvalid:
m_value.SetValueType(Value::eValueTypeScalar);
break;
case eAddressTypeFile:
m_value.SetValueType(Value::eValueTypeFileAddress);
break;
case eAddressTypeLoad:
m_value.SetValueType(Value::eValueTypeLoadAddress);
break;
case eAddressTypeHost:
m_value.SetValueType(Value::eValueTypeHostAddress);
break;
}
// m_value.SetContext(Value::eContextTypeClangType, compiler_type);
m_value.SetCompilerType(compiler_type);
m_name = name;
SetIsConstant();
SetValueIsValid(true);
SetAddressTypeOfChildren(eAddressTypeLoad);
}
ValueObjectSP ValueObjectConstResult::Create(ExecutionContextScope *exe_scope,
const Status &error) {
return (new ValueObjectConstResult(exe_scope, error))->GetSP();
}
ValueObjectConstResult::ValueObjectConstResult(ExecutionContextScope *exe_scope,
const Status &error)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0), m_impl(this) {
m_error = error;
SetIsConstant();
}
ValueObjectConstResult::ValueObjectConstResult(ExecutionContextScope *exe_scope,
const Value &value,
ConstString name,
Module *module)
: ValueObject(exe_scope), m_type_name(), m_byte_size(0), m_impl(this) {
m_value = value;
m_name = name;
ExecutionContext exe_ctx;
exe_scope->CalculateExecutionContext(exe_ctx);
m_error = m_value.GetValueAsData(&exe_ctx, m_data, module);
}
ValueObjectConstResult::~ValueObjectConstResult() {}
CompilerType ValueObjectConstResult::GetCompilerTypeImpl() {
return m_value.GetCompilerType();
}
lldb::ValueType ValueObjectConstResult::GetValueType() const {
return eValueTypeConstResult;
}
uint64_t ValueObjectConstResult::GetByteSize() {
ExecutionContext exe_ctx(GetExecutionContextRef());
if (m_byte_size == 0) {
if (auto size =
GetCompilerType().GetByteSize(exe_ctx.GetBestExecutionContextScope()))
SetByteSize(*size);
}
return m_byte_size;
}
void ValueObjectConstResult::SetByteSize(size_t size) { m_byte_size = size; }
size_t ValueObjectConstResult::CalculateNumChildren(uint32_t max) {
ExecutionContext exe_ctx(GetExecutionContextRef());
auto children_count = GetCompilerType().GetNumChildren(true, &exe_ctx);
return children_count <= max ? children_count : max;
}
ConstString ValueObjectConstResult::GetTypeName() {
if (m_type_name.IsEmpty())
m_type_name = GetCompilerType().GetConstTypeName();
return m_type_name;
}
ConstString ValueObjectConstResult::GetDisplayTypeName() {
return GetCompilerType().GetDisplayTypeName();
}
bool ValueObjectConstResult::UpdateValue() {
// Const value is always valid
SetValueIsValid(true);
return true;
}
bool ValueObjectConstResult::IsInScope() {
// A const result value is always in scope since it serializes all
// information needed to contain the constant value.
return true;
}
lldb::ValueObjectSP ValueObjectConstResult::Dereference(Status &error) {
return m_impl.Dereference(error);
}
lldb::ValueObjectSP ValueObjectConstResult::GetSyntheticChildAtOffset(
uint32_t offset, const CompilerType &type, bool can_create,
ConstString name_const_str) {
return m_impl.GetSyntheticChildAtOffset(offset, type, can_create,
name_const_str);
}
lldb::ValueObjectSP ValueObjectConstResult::AddressOf(Status &error) {
return m_impl.AddressOf(error);
}
lldb::addr_t ValueObjectConstResult::GetAddressOf(bool scalar_is_load_address,
AddressType *address_type) {
return m_impl.GetAddressOf(scalar_is_load_address, address_type);
}
ValueObject *ValueObjectConstResult::CreateChildAtIndex(
size_t idx, bool synthetic_array_member, int32_t synthetic_index) {
return m_impl.CreateChildAtIndex(idx, synthetic_array_member,
synthetic_index);
}
size_t ValueObjectConstResult::GetPointeeData(DataExtractor &data,
uint32_t item_idx,
uint32_t item_count) {
return m_impl.GetPointeeData(data, item_idx, item_count);
}
lldb::ValueObjectSP
ValueObjectConstResult::GetDynamicValue(lldb::DynamicValueType use_dynamic) {
// Always recalculate dynamic values for const results as the memory that
// they might point to might have changed at any time.
if (use_dynamic != eNoDynamicValues) {
if (!IsDynamic()) {
ExecutionContext exe_ctx(GetExecutionContextRef());
Process *process = exe_ctx.GetProcessPtr();
if (process && process->IsPossibleDynamicValue(*this))
m_dynamic_value = new ValueObjectDynamicValue(*this, use_dynamic);
}
if (m_dynamic_value)
return m_dynamic_value->GetSP();
}
return ValueObjectSP();
}
lldb::ValueObjectSP
ValueObjectConstResult::Cast(const CompilerType &compiler_type) {
return m_impl.Cast(compiler_type);
}
lldb::LanguageType ValueObjectConstResult::GetPreferredDisplayLanguage() {
if (m_preferred_display_language != lldb::eLanguageTypeUnknown)
return m_preferred_display_language;
return GetCompilerTypeImpl().GetMinimumLanguage();
}
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