mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-04-06 23:32:39 +00:00
1cd5e921e1
This is necessary because the byte size of an ObjC class type is not reliably statically knowable (e.g. because superclasses sit deep in frameworks that we have no debug info for) The lack of reliable size info is a problem when trying to freeze-dry an ObjC instance (not the pointer, the pointee) This commit lays the foundation for having language runtimes help in figuring out byte sizes, and having ClangASTType ask for runtime help No feature change as no runtime actually implements the logic, and nowhere is an ExecutionContext passed in yet llvm-svn: 227274
371 lines
12 KiB
C++
371 lines
12 KiB
C++
//===-- ValueObjectConstResult.cpp ------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/Core/ValueObjectConstResult.h"
|
|
|
|
#include "lldb/Core/ValueObjectChild.h"
|
|
#include "lldb/Core/ValueObjectConstResultChild.h"
|
|
#include "lldb/Core/DataExtractor.h"
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Core/ValueObjectDynamicValue.h"
|
|
#include "lldb/Core/ValueObjectList.h"
|
|
|
|
#include "lldb/Symbol/ClangASTType.h"
|
|
#include "lldb/Symbol/ObjectFile.h"
|
|
#include "lldb/Symbol/SymbolContext.h"
|
|
#include "lldb/Symbol/Type.h"
|
|
#include "lldb/Symbol/Variable.h"
|
|
|
|
#include "lldb/Target/ExecutionContext.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "lldb/Target/Target.h"
|
|
|
|
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 ClangASTType &clang_type,
|
|
const ConstString &name,
|
|
const DataExtractor &data,
|
|
lldb::addr_t address
|
|
)
|
|
{
|
|
return (new ValueObjectConstResult (exe_scope,
|
|
clang_type,
|
|
name,
|
|
data,
|
|
address))->GetSP();
|
|
}
|
|
|
|
ValueObjectConstResult::ValueObjectConstResult (ExecutionContextScope *exe_scope,
|
|
const ClangASTType &clang_type,
|
|
const 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.SetClangType(clang_type);
|
|
m_name = name;
|
|
SetIsConstant ();
|
|
SetValueIsValid(true);
|
|
SetAddressTypeOfChildren(eAddressTypeLoad);
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObjectConstResult::Create (ExecutionContextScope *exe_scope,
|
|
const ClangASTType &clang_type,
|
|
const 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,
|
|
clang_type,
|
|
name,
|
|
data_sp,
|
|
data_byte_order,
|
|
data_addr_size,
|
|
address))->GetSP();
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObjectConstResult::Create (ExecutionContextScope *exe_scope,
|
|
Value &value,
|
|
const ConstString &name,
|
|
Module *module)
|
|
{
|
|
return (new ValueObjectConstResult (exe_scope, value, name, module))->GetSP();
|
|
}
|
|
|
|
ValueObjectConstResult::ValueObjectConstResult (ExecutionContextScope *exe_scope,
|
|
const ClangASTType &clang_type,
|
|
const 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, clang_type);
|
|
m_value.SetClangType (clang_type);
|
|
m_name = name;
|
|
SetIsConstant ();
|
|
SetValueIsValid(true);
|
|
SetAddressTypeOfChildren(eAddressTypeLoad);
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObjectConstResult::Create (ExecutionContextScope *exe_scope,
|
|
const ClangASTType &clang_type,
|
|
const ConstString &name,
|
|
lldb::addr_t address,
|
|
AddressType address_type,
|
|
uint32_t addr_byte_size)
|
|
{
|
|
return (new ValueObjectConstResult (exe_scope,
|
|
clang_type,
|
|
name,
|
|
address,
|
|
address_type,
|
|
addr_byte_size))->GetSP();
|
|
}
|
|
|
|
ValueObjectConstResult::ValueObjectConstResult (ExecutionContextScope *exe_scope,
|
|
const ClangASTType &clang_type,
|
|
const 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, clang_type);
|
|
m_value.SetClangType (clang_type);
|
|
m_name = name;
|
|
SetIsConstant ();
|
|
SetValueIsValid(true);
|
|
SetAddressTypeOfChildren(eAddressTypeLoad);
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObjectConstResult::Create
|
|
(
|
|
ExecutionContextScope *exe_scope,
|
|
const Error& error
|
|
)
|
|
{
|
|
return (new ValueObjectConstResult (exe_scope,
|
|
error))->GetSP();
|
|
}
|
|
|
|
ValueObjectConstResult::ValueObjectConstResult (ExecutionContextScope *exe_scope,
|
|
const Error& 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,
|
|
const 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, 0, module);
|
|
}
|
|
|
|
ValueObjectConstResult::~ValueObjectConstResult()
|
|
{
|
|
}
|
|
|
|
ClangASTType
|
|
ValueObjectConstResult::GetClangTypeImpl()
|
|
{
|
|
return m_value.GetClangType();
|
|
}
|
|
|
|
lldb::ValueType
|
|
ValueObjectConstResult::GetValueType() const
|
|
{
|
|
return eValueTypeConstResult;
|
|
}
|
|
|
|
uint64_t
|
|
ValueObjectConstResult::GetByteSize()
|
|
{
|
|
if (m_byte_size == 0)
|
|
m_byte_size = GetClangType().GetByteSize(nullptr);
|
|
return m_byte_size;
|
|
}
|
|
|
|
void
|
|
ValueObjectConstResult::SetByteSize (size_t size)
|
|
{
|
|
m_byte_size = size;
|
|
}
|
|
|
|
size_t
|
|
ValueObjectConstResult::CalculateNumChildren()
|
|
{
|
|
return GetClangType().GetNumChildren (true);
|
|
}
|
|
|
|
ConstString
|
|
ValueObjectConstResult::GetTypeName()
|
|
{
|
|
if (m_type_name.IsEmpty())
|
|
m_type_name = GetClangType().GetConstTypeName ();
|
|
return m_type_name;
|
|
}
|
|
|
|
ConstString
|
|
ValueObjectConstResult::GetDisplayTypeName()
|
|
{
|
|
return GetClangType().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 (Error &error)
|
|
{
|
|
return m_impl.Dereference(error);
|
|
}
|
|
|
|
lldb::ValueObjectSP
|
|
ValueObjectConstResult::GetSyntheticChildAtOffset(uint32_t offset, const ClangASTType& type, bool can_create)
|
|
{
|
|
return m_impl.GetSyntheticChildAtOffset(offset, type, can_create);
|
|
}
|
|
|
|
lldb::ValueObjectSP
|
|
ValueObjectConstResult::AddressOf (Error &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::LanguageType
|
|
ValueObjectConstResult::GetPreferredDisplayLanguage ()
|
|
{
|
|
return lldb::eLanguageTypeUnknown;
|
|
}
|