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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- DWARFDebugRnglists.h -------------------------------------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |||
| 9 | #ifndef LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H |
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| 10 | #define LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H |
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| 11 | |||
| 12 | #include "llvm/ADT/STLFunctionalExtras.h" |
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| 13 | #include "llvm/BinaryFormat/Dwarf.h" |
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| 14 | #include "llvm/DebugInfo/DWARF/DWARFAddressRange.h" |
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| 15 | #include "llvm/DebugInfo/DWARF/DWARFListTable.h" |
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| 16 | #include <cstdint> |
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| 17 | |||
| 18 | namespace llvm { |
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| 19 | |||
| 20 | class Error; |
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| 21 | class raw_ostream; |
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| 22 | class DWARFUnit; |
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| 23 | class DWARFDataExtractor; |
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| 24 | struct DIDumpOptions; |
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| 25 | namespace object { |
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| 26 | struct SectionedAddress; |
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| 27 | } |
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| 28 | |||
| 29 | /// A class representing a single range list entry. |
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| 30 | struct RangeListEntry : public DWARFListEntryBase { |
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| 31 | /// The values making up the range list entry. Most represent a range with |
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| 32 | /// a start and end address or a start address and a length. Others are |
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| 33 | /// single value base addresses or end-of-list with no values. The unneeded |
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| 34 | /// values are semantically undefined, but initialized to 0. |
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| 35 | uint64_t Value0; |
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| 36 | uint64_t Value1; |
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| 37 | |||
| 38 | Error extract(DWARFDataExtractor Data, uint64_t *OffsetPtr); |
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| 39 | void |
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| 40 | dump(raw_ostream &OS, uint8_t AddrSize, uint8_t MaxEncodingStringLength, |
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| 41 | uint64_t &CurrentBase, DIDumpOptions DumpOpts, |
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| 42 | llvm::function_ref<std::optional<object::SectionedAddress>(uint32_t)> |
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| 43 | LookupPooledAddress) const; |
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| 44 | bool isSentinel() const { return EntryKind == dwarf::DW_RLE_end_of_list; } |
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| 45 | }; |
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| 46 | |||
| 47 | /// A class representing a single rangelist. |
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| 48 | class DWARFDebugRnglist : public DWARFListType<RangeListEntry> { |
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| 49 | public: |
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| 50 | /// Build a DWARFAddressRangesVector from a rangelist. |
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| 51 | DWARFAddressRangesVector getAbsoluteRanges( |
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| 52 | std::optional<object::SectionedAddress> BaseAddr, uint8_t AddressByteSize, |
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| 53 | function_ref<std::optional<object::SectionedAddress>(uint32_t)> |
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| 54 | LookupPooledAddress) const; |
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| 55 | |||
| 56 | /// Build a DWARFAddressRangesVector from a rangelist. |
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| 57 | DWARFAddressRangesVector |
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| 58 | getAbsoluteRanges(std::optional<object::SectionedAddress> BaseAddr, |
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| 59 | DWARFUnit &U) const; |
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| 60 | }; |
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| 61 | |||
| 62 | class DWARFDebugRnglistTable : public DWARFListTableBase<DWARFDebugRnglist> { |
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| 63 | public: |
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| 64 | DWARFDebugRnglistTable() |
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| 65 | : DWARFListTableBase(/* SectionName = */ ".debug_rnglists", |
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| 66 | /* HeaderString = */ "ranges:", |
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| 67 | /* ListTypeString = */ "range") {} |
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| 68 | }; |
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| 69 | |||
| 70 | } // end namespace llvm |
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| 71 | |||
| 72 | #endif // LLVM_DEBUGINFO_DWARF_DWARFDEBUGRNGLISTS_H |