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usr / src / contrib / llvm-project / lldb / include / lldb / Expression /

📁 ..
📄 DWARFExpression.h(9.9 KB)
📄 DiagnosticManager.h(4.16 KB)
📄 DynamicCheckerFunctions.h(2.07 KB)
📄 Expression.h(3.76 KB)
📄 ExpressionParser.h(5.08 KB)
📄 ExpressionSourceCode.h(1.18 KB)
📄 ExpressionTypeSystemHelper.h(1.35 KB)
📄 ExpressionVariable.h(8.38 KB)
📄 FunctionCaller.h(12.98 KB)
📄 IRExecutionUnit.h(15.17 KB)
📄 IRInterpreter.h(1.84 KB)
📄 IRMemoryMap.h(5.6 KB)
📄 LLVMUserExpression.h(5.03 KB)
📄 Materializer.h(4.21 KB)
📄 REPL.h(5.03 KB)
📄 UserExpression.h(12.4 KB)
📄 UtilityFunction.h(4.61 KB)

Editing: Materializer.h

//===-- Materializer.h ------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLDB_EXPRESSION_MATERIALIZER_H
#define LLDB_EXPRESSION_MATERIALIZER_H

#include <memory>
#include <vector>

#include "lldb/Expression/IRMemoryMap.h"
#include "lldb/Symbol/TaggedASTType.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Utility/Status.h"
#include "lldb/lldb-private-types.h"

namespace lldb_private {

class Materializer {
public:
  Materializer() = default;
  ~Materializer();

class Dematerializer {
  public:
    Dematerializer() = default;

~Dematerializer() { Wipe(); }

void Dematerialize(Status &err, lldb::addr_t frame_top,
                       lldb::addr_t frame_bottom);

void Wipe();

bool IsValid() {
      return m_materializer && m_map &&
             (m_process_address != LLDB_INVALID_ADDRESS);
    }

private:
    friend class Materializer;

Dematerializer(Materializer &materializer, lldb::StackFrameSP &frame_sp,
                   IRMemoryMap &map, lldb::addr_t process_address)
        : m_materializer(&materializer), m_map(&map),
          m_process_address(process_address) {
      if (frame_sp) {
        m_thread_wp = frame_sp->GetThread();
        m_stack_id = frame_sp->GetStackID();
      }
    }

Materializer *m_materializer = nullptr;
    lldb::ThreadWP m_thread_wp;
    StackID m_stack_id;
    IRMemoryMap *m_map = nullptr;
    lldb::addr_t m_process_address = LLDB_INVALID_ADDRESS;
  };

typedef std::shared_ptr<Dematerializer> DematerializerSP;
  typedef std::weak_ptr<Dematerializer> DematerializerWP;

DematerializerSP Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
                               lldb::addr_t process_address, Status &err);

class PersistentVariableDelegate {
  public:
    virtual ~PersistentVariableDelegate();
    virtual ConstString GetName() = 0;
    virtual void DidDematerialize(lldb::ExpressionVariableSP &variable) = 0;
  };

uint32_t
  AddPersistentVariable(lldb::ExpressionVariableSP &persistent_variable_sp,
                        PersistentVariableDelegate *delegate, Status &err);
  uint32_t AddVariable(lldb::VariableSP &variable_sp, Status &err);
  uint32_t AddResultVariable(const CompilerType &type, bool is_lvalue,
                             bool keep_in_memory,
                             PersistentVariableDelegate *delegate, Status &err);
  uint32_t AddSymbol(const Symbol &symbol_sp, Status &err);
  uint32_t AddRegister(const RegisterInfo &register_info, Status &err);

uint32_t GetStructAlignment() { return m_struct_alignment; }

uint32_t GetStructByteSize() { return m_current_offset; }

class Entity {
  public:
    Entity() : m_alignment(1), m_size(0), m_offset(0) {}

virtual ~Entity() = default;

virtual void Materialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
                             lldb::addr_t process_address, Status &err) = 0;
    virtual void Dematerialize(lldb::StackFrameSP &frame_sp, IRMemoryMap &map,
                               lldb::addr_t process_address,
                               lldb::addr_t frame_top,
                               lldb::addr_t frame_bottom, Status &err) = 0;
    virtual void DumpToLog(IRMemoryMap &map, lldb::addr_t process_address,
                           Log *log) = 0;
    virtual void Wipe(IRMemoryMap &map, lldb::addr_t process_address) = 0;

uint32_t GetAlignment() { return m_alignment; }

uint32_t GetSize() { return m_size; }

uint32_t GetOffset() { return m_offset; }

void SetOffset(uint32_t offset) { m_offset = offset; }

protected:
    uint32_t m_alignment;
    uint32_t m_size;
    uint32_t m_offset;
  };

private:
  uint32_t AddStructMember(Entity &entity);

typedef std::unique_ptr<Entity> EntityUP;
  typedef std::vector<EntityUP> EntityVector;

DematerializerWP m_dematerializer_wp;
  EntityVector m_entities;
  uint32_t m_current_offset = 0;
  uint32_t m_struct_alignment = 8;
};

} // namespace lldb_private

#endif // LLDB_EXPRESSION_MATERIALIZER_H

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Editing: Materializer.h

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