68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef NOGROD_DWARF_CONTEXT_
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#define NOGROD_DWARF_CONTEXT_
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#include <cstdint>
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#include <string>
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#include <berberis/base/macros.h>
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#include "byte_input_stream.h"
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#include "string_offset_table.h"
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#include "string_table.h"
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namespace nogrod {
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class DwarfContext {
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public:
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DwarfContext(ByteInputStream* dwarf_info_stream,
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StringTable* debug_str_table,
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std::optional<StringOffsetTable> string_offset_table)
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: dwarf_info_stream_{dwarf_info_stream},
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debug_str_table_{debug_str_table},
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string_offset_table_{std::move(string_offset_table)} {}
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DwarfContext(const DwarfContext&) = delete;
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const DwarfContext& operator=(const DwarfContext&) = delete;
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DwarfContext(DwarfContext&&) = delete;
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DwarfContext& operator=(DwarfContext&&) = delete;
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[[nodiscard]] const StringTable* debug_str_table() const { return debug_str_table_; }
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[[nodiscard]] const std::optional<StringOffsetTable>& string_offset_table() const {
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return string_offset_table_;
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}
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[[nodiscard]] ByteInputStream* info_stream() { return dwarf_info_stream_; }
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[[nodiscard]] std::optional<uint64_t> str_offsets_base() const { return str_offsets_base_; }
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// DW_AT_str_offsets_base may be defined in Compilation Unit, in which case we set it here.
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void SetStrOffsetsBase(uint64_t str_offsets_base) { str_offsets_base_ = str_offsets_base; }
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// DW_AT_str_offsets_base is reset once new compilation unit starts
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void ResetStrOffsetsBase() { str_offsets_base_.reset(); }
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private:
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ByteInputStream* dwarf_info_stream_;
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StringTable* debug_str_table_;
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std::optional<StringOffsetTable> string_offset_table_;
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std::optional<uint64_t> str_offsets_base_{};
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};
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} // namespace nogrod
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#endif // NOGROD_DWARF_CONTEXT_
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