1 | //===- DWARFGdbIndex.h ------------------------------------------*- C++ -*-===// |
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2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #ifndef LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H |
10 | #define LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H |
11 | |
12 | #include "llvm/ADT/SmallVector.h" |
13 | #include "llvm/ADT/StringRef.h" |
14 | #include <cstdint> |
15 | #include <utility> |
16 | |
17 | namespace llvm { |
18 | |
19 | class raw_ostream; |
20 | class DataExtractor; |
21 | |
22 | class DWARFGdbIndex { |
23 | uint32_t Version; |
24 | |
25 | uint32_t CuListOffset; |
26 | uint32_t TuListOffset; |
27 | uint32_t AddressAreaOffset; |
28 | uint32_t SymbolTableOffset; |
29 | uint32_t ConstantPoolOffset; |
30 | |
31 | struct CompUnitEntry { |
32 | uint64_t Offset; /// Offset of a CU in the .debug_info section. |
33 | uint64_t Length; /// Length of that CU. |
34 | }; |
35 | SmallVector<CompUnitEntry, 0> CuList; |
36 | |
37 | struct TypeUnitEntry { |
38 | uint64_t Offset; |
39 | uint64_t TypeOffset; |
40 | uint64_t TypeSignature; |
41 | }; |
42 | SmallVector<TypeUnitEntry, 0> TuList; |
43 | |
44 | struct AddressEntry { |
45 | uint64_t LowAddress; /// The low address. |
46 | uint64_t HighAddress; /// The high address. |
47 | uint32_t CuIndex; /// The CU index. |
48 | }; |
49 | SmallVector<AddressEntry, 0> AddressArea; |
50 | |
51 | struct SymTableEntry { |
52 | uint32_t NameOffset; /// Offset of the symbol's name in the constant pool. |
53 | uint32_t VecOffset; /// Offset of the CU vector in the constant pool. |
54 | }; |
55 | SmallVector<SymTableEntry, 0> SymbolTable; |
56 | |
57 | /// Each value is CU index + attributes. |
58 | SmallVector<std::pair<uint32_t, SmallVector<uint32_t, 0>>, 0> |
59 | ConstantPoolVectors; |
60 | |
61 | StringRef ConstantPoolStrings; |
62 | uint32_t StringPoolOffset; |
63 | |
64 | void dumpCUList(raw_ostream &OS) const; |
65 | void dumpTUList(raw_ostream &OS) const; |
66 | void dumpAddressArea(raw_ostream &OS) const; |
67 | void dumpSymbolTable(raw_ostream &OS) const; |
68 | void dumpConstantPool(raw_ostream &OS) const; |
69 | |
70 | bool parseImpl(DataExtractor Data); |
71 | |
72 | public: |
73 | void dump(raw_ostream &OS); |
74 | void parse(DataExtractor Data); |
75 | |
76 | bool HasContent = false; |
77 | bool HasError = false; |
78 | }; |
79 | |
80 | } // end namespace llvm |
81 | |
82 | #endif // LLVM_DEBUGINFO_DWARF_DWARFGDBINDEX_H |
83 |