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/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "AbbreviationsMap.h"
#include <AK/Noncopyable.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/Types.h>
namespace Debug::Dwarf {
class DwarfInfo;
class DIE;
class LineProgram;
class CompilationUnit {
AK_MAKE_NONCOPYABLE(CompilationUnit);
AK_MAKE_NONMOVABLE(CompilationUnit);
public:
CompilationUnit(DwarfInfo const& dwarf_info, u32 offset, CompilationUnitHeader const&, NonnullOwnPtr<LineProgram>&& line_program);
~CompilationUnit();
u32 offset() const { return m_offset; }
u32 size() const { return m_header.length() + sizeof(u32); }
DIE root_die() const;
DIE get_die_at_offset(u32 offset) const;
ErrorOr<FlatPtr> get_address(size_t index) const;
ErrorOr<char const*> get_string(size_t index) const;
u8 dwarf_version() const { return m_header.version(); }
DwarfInfo const& dwarf_info() const { return m_dwarf_info; }
AbbreviationsMap const& abbreviations_map() const { return m_abbreviations; }
LineProgram const& line_program() const;
ErrorOr<Optional<FlatPtr>> base_address() const;
// DW_AT_addr_base
ErrorOr<u64> address_table_base() const;
// DW_AT_str_offsets_base
ErrorOr<u64> string_offsets_base() const;
// DW_AT_rnglists_base
ErrorOr<u64> range_lists_base() const;
private:
DwarfInfo const& m_dwarf_info;
u32 m_offset { 0 };
CompilationUnitHeader m_header;
AbbreviationsMap m_abbreviations;
NonnullOwnPtr<LineProgram> m_line_program;
mutable bool m_has_cached_base_address : 1 { false };
mutable bool m_has_cached_address_table_base : 1 { false };
mutable bool m_has_cached_string_offsets_base : 1 { false };
mutable bool m_has_cached_range_lists_base : 1 { false };
mutable Optional<FlatPtr> m_cached_base_address;
mutable u64 m_cached_address_table_base { 0 };
mutable u64 m_cached_string_offsets_base { 0 };
mutable u64 m_cached_range_lists_base { 0 };
};
}
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