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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- DWARFAttribute.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_DWARFATTRIBUTE_H |
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| 10 | #define LLVM_DEBUGINFO_DWARF_DWARFATTRIBUTE_H |
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| 11 | |||
| 12 | #include "llvm/BinaryFormat/Dwarf.h" |
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| 13 | #include "llvm/DebugInfo/DWARF/DWARFFormValue.h" |
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| 14 | #include <cstdint> |
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| 15 | |||
| 16 | namespace llvm { |
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| 17 | |||
| 18 | //===----------------------------------------------------------------------===// |
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| 19 | /// Encapsulates a DWARF attribute value and all of the data required to |
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| 20 | /// describe the attribute value. |
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| 21 | /// |
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| 22 | /// This class is designed to be used by clients that want to iterate across all |
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| 23 | /// attributes in a DWARFDie. |
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| 24 | struct DWARFAttribute { |
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| 25 | /// The debug info/types offset for this attribute. |
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| 26 | uint64_t Offset = 0; |
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| 27 | /// The debug info/types section byte size of the data for this attribute. |
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| 28 | uint32_t ByteSize = 0; |
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| 29 | /// The attribute enumeration of this attribute. |
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| 30 | dwarf::Attribute Attr = dwarf::Attribute(0); |
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| 31 | /// The form and value for this attribute. |
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| 32 | DWARFFormValue Value; |
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| 33 | |||
| 34 | bool isValid() const { |
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| 35 | return Offset != 0 && Attr != dwarf::Attribute(0); |
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| 36 | } |
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| 37 | |||
| 38 | explicit operator bool() const { |
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| 39 | return isValid(); |
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| 40 | } |
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| 41 | |||
| 42 | /// Identify DWARF attributes that may contain a pointer to a location list. |
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| 43 | static bool mayHaveLocationList(dwarf::Attribute Attr); |
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| 44 | |||
| 45 | /// Identifies DWARF attributes that may contain a reference to a |
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| 46 | /// DWARF expression. |
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| 47 | static bool mayHaveLocationExpr(dwarf::Attribute Attr); |
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| 48 | }; |
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| 49 | |||
| 50 | } // end namespace llvm |
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| 51 | |||
| 52 | #endif // LLVM_DEBUGINFO_DWARF_DWARFATTRIBUTE_H |