Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugArangeSet.h
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//===- DWARFDebugArangeSet.h ------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H
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#define LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/Support/DataExtractor.h"
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#include <cstdint>
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#include <vector>
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namespace llvm {
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class raw_ostream;
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class DWARFDebugArangeSet {
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public:
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  struct Header {
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    /// The total length of the entries for that set, not including the length
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    /// field itself.
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    uint32_t Length;
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    /// The offset from the beginning of the .debug_info section of the
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    /// compilation unit entry referenced by the table.
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    uint32_t CuOffset;
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    /// The DWARF version number.
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    uint16_t Version;
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    /// The size in bytes of an address on the target architecture. For segmented
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    /// addressing, this is the size of the offset portion of the address.
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    uint8_t AddrSize;
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    /// The size in bytes of a segment descriptor on the target architecture.
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    /// If the target system uses a flat address space, this value is 0.
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    uint8_t SegSize;
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  };
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  struct Descriptor {
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    uint64_t Address;
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    uint64_t Length;
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    uint64_t getEndAddress() const { return Address + Length; }
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    void dump(raw_ostream &OS, uint32_t AddressSize) const;
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  };
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private:
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  using DescriptorColl = std::vector<Descriptor>;
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  using desc_iterator_range = iterator_range<DescriptorColl::const_iterator>;
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  uint32_t Offset;
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  Header HeaderData;
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  DescriptorColl ArangeDescriptors;
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public:
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  DWARFDebugArangeSet() { clear(); }
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  void clear();
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  bool extract(DataExtractor data, uint32_t *offset_ptr);
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  void dump(raw_ostream &OS) const;
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  uint32_t getCompileUnitDIEOffset() const { return HeaderData.CuOffset; }
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  const Header &getHeader() const { return HeaderData; }
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  desc_iterator_range descriptors() const {
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    return desc_iterator_range(ArangeDescriptors.begin(),
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                               ArangeDescriptors.end());
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  }
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};
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H