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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- DWARFObject.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_DWARFOBJECT_H |
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| 10 | #define LLVM_DEBUGINFO_DWARF_DWARFOBJECT_H |
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| 11 | |||
| 12 | #include "llvm/DebugInfo/DWARF/DWARFRelocMap.h" |
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| 13 | #include "llvm/DebugInfo/DWARF/DWARFSection.h" |
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| 14 | #include "llvm/Object/ObjectFile.h" |
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| 15 | #include <optional> |
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| 16 | |||
| 17 | namespace llvm { |
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| 18 | // This is responsible for low level access to the object file. It |
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| 19 | // knows how to find the required sections and compute relocated |
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| 20 | // values. |
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| 21 | // The default implementations of the get<Section> methods return dummy values. |
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| 22 | // This is to allow clients that only need some of those to implement just the |
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| 23 | // ones they need. We can't use unreachable for as many cases because the parser |
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| 24 | // implementation is eager and will call some of these methods even if the |
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| 25 | // result is not used. |
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| 26 | class DWARFObject { |
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| 27 | DWARFSection Dummy; |
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| 28 | |||
| 29 | public: |
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| 30 | virtual ~DWARFObject() = default; |
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| 31 | virtual StringRef getFileName() const { llvm_unreachable("unimplemented"); } |
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| 32 | virtual const object::ObjectFile *getFile() const { return nullptr; } |
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| 33 | virtual ArrayRef<SectionName> getSectionNames() const { return {}; } |
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| 34 | virtual bool isLittleEndian() const = 0; |
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| 35 | virtual uint8_t getAddressSize() const { llvm_unreachable("unimplemented"); } |
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| 36 | virtual void |
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| 37 | forEachInfoSections(function_ref<void(const DWARFSection &)> F) const {} |
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| 38 | virtual void |
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| 39 | forEachTypesSections(function_ref<void(const DWARFSection &)> F) const {} |
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| 40 | virtual StringRef getAbbrevSection() const { return ""; } |
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| 41 | virtual const DWARFSection &getLocSection() const { return Dummy; } |
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| 42 | virtual const DWARFSection &getLoclistsSection() const { return Dummy; } |
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| 43 | virtual StringRef getArangesSection() const { return ""; } |
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| 44 | virtual const DWARFSection &getFrameSection() const { return Dummy; } |
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| 45 | virtual const DWARFSection &getEHFrameSection() const { return Dummy; } |
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| 46 | virtual const DWARFSection &getLineSection() const { return Dummy; } |
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| 47 | virtual StringRef getLineStrSection() const { return ""; } |
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| 48 | virtual StringRef getStrSection() const { return ""; } |
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| 49 | virtual const DWARFSection &getRangesSection() const { return Dummy; } |
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| 50 | virtual const DWARFSection &getRnglistsSection() const { return Dummy; } |
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| 51 | virtual const DWARFSection &getMacroSection() const { return Dummy; } |
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| 52 | virtual StringRef getMacroDWOSection() const { return ""; } |
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| 53 | virtual StringRef getMacinfoSection() const { return ""; } |
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| 54 | virtual StringRef getMacinfoDWOSection() const { return ""; } |
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| 55 | virtual const DWARFSection &getPubnamesSection() const { return Dummy; } |
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| 56 | virtual const DWARFSection &getPubtypesSection() const { return Dummy; } |
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| 57 | virtual const DWARFSection &getGnuPubnamesSection() const { return Dummy; } |
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| 58 | virtual const DWARFSection &getGnuPubtypesSection() const { return Dummy; } |
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| 59 | virtual const DWARFSection &getStrOffsetsSection() const { return Dummy; } |
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| 60 | virtual void |
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| 61 | forEachInfoDWOSections(function_ref<void(const DWARFSection &)> F) const {} |
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| 62 | virtual void |
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| 63 | forEachTypesDWOSections(function_ref<void(const DWARFSection &)> F) const {} |
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| 64 | virtual StringRef getAbbrevDWOSection() const { return ""; } |
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| 65 | virtual const DWARFSection &getLineDWOSection() const { return Dummy; } |
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| 66 | virtual const DWARFSection &getLocDWOSection() const { return Dummy; } |
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| 67 | virtual const DWARFSection &getLoclistsDWOSection() const { return Dummy; } |
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| 68 | virtual StringRef getStrDWOSection() const { return ""; } |
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| 69 | virtual const DWARFSection &getStrOffsetsDWOSection() const { |
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| 70 | return Dummy; |
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| 71 | } |
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| 72 | virtual const DWARFSection &getRangesDWOSection() const { return Dummy; } |
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| 73 | virtual const DWARFSection &getRnglistsDWOSection() const { return Dummy; } |
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| 74 | virtual const DWARFSection &getAddrSection() const { return Dummy; } |
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| 75 | virtual const DWARFSection &getAppleNamesSection() const { return Dummy; } |
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| 76 | virtual const DWARFSection &getAppleTypesSection() const { return Dummy; } |
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| 77 | virtual const DWARFSection &getAppleNamespacesSection() const { |
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| 78 | return Dummy; |
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| 79 | } |
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| 80 | virtual const DWARFSection &getNamesSection() const { return Dummy; } |
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| 81 | virtual const DWARFSection &getAppleObjCSection() const { return Dummy; } |
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| 82 | virtual StringRef getCUIndexSection() const { return ""; } |
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| 83 | virtual StringRef getGdbIndexSection() const { return ""; } |
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| 84 | virtual StringRef getTUIndexSection() const { return ""; } |
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| 85 | virtual std::optional<RelocAddrEntry> find(const DWARFSection &Sec, |
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| 86 | uint64_t Pos) const = 0; |
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| 87 | }; |
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| 88 | |||
| 89 | } // namespace llvm |
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| 90 | #endif |