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116f82d21a
Instead, use the `DW_AT_stmt_list` attribute of the compilation unit entry to determine the corresponding line program.
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "AbbreviationsMap.h"
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#include <AK/Noncopyable.h>
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#include <AK/OwnPtr.h>
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#include <AK/Types.h>
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namespace Debug::Dwarf {
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class DwarfInfo;
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class DIE;
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class LineProgram;
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class CompilationUnit {
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AK_MAKE_NONCOPYABLE(CompilationUnit);
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AK_MAKE_NONMOVABLE(CompilationUnit);
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public:
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static ErrorOr<NonnullOwnPtr<CompilationUnit>> create(DwarfInfo const& dwarf_info, u32 offset, CompilationUnitHeader const&, ReadonlyBytes debug_line_data);
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~CompilationUnit();
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u32 offset() const { return m_offset; }
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u32 size() const { return m_header.length() + sizeof(u32); }
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DIE root_die() const;
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DIE get_die_at_offset(u32 offset) const;
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ErrorOr<FlatPtr> get_address(size_t index) const;
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ErrorOr<char const*> get_string(size_t index) const;
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u8 dwarf_version() const { return m_header.version(); }
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DwarfInfo const& dwarf_info() const { return m_dwarf_info; }
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AbbreviationsMap const& abbreviations_map() const { return m_abbreviations; }
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LineProgram const& line_program() const;
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ErrorOr<Optional<FlatPtr>> base_address() const;
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// DW_AT_addr_base
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ErrorOr<u64> address_table_base() const;
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// DW_AT_str_offsets_base
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ErrorOr<u64> string_offsets_base() const;
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// DW_AT_rnglists_base
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ErrorOr<u64> range_lists_base() const;
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private:
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CompilationUnit(DwarfInfo const& dwarf_info, u32 offset, CompilationUnitHeader const&);
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ErrorOr<void> populate_line_program(ReadonlyBytes debug_line_data);
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DwarfInfo const& m_dwarf_info;
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u32 m_offset { 0 };
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CompilationUnitHeader m_header;
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AbbreviationsMap m_abbreviations;
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OwnPtr<LineProgram> m_line_program;
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mutable bool m_has_cached_base_address : 1 { false };
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mutable bool m_has_cached_address_table_base : 1 { false };
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mutable bool m_has_cached_string_offsets_base : 1 { false };
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mutable bool m_has_cached_range_lists_base : 1 { false };
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mutable Optional<FlatPtr> m_cached_base_address;
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mutable u64 m_cached_address_table_base { 0 };
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mutable u64 m_cached_string_offsets_base { 0 };
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mutable u64 m_cached_range_lists_base { 0 };
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};
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}
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