Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Object/ObjectFile.h b/linux-x64/clang/include/llvm/Object/ObjectFile.h
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+//===- ObjectFile.h - File format independent object file -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares a file format independent ObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_OBJECTFILE_H
+#define LLVM_OBJECT_OBJECTFILE_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/ADT/iterator_range.h"
+#include "llvm/BinaryFormat/Magic.h"
+#include "llvm/MC/SubtargetFeature.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Object/Error.h"
+#include "llvm/Object/SymbolicFile.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include <cassert>
+#include <cstdint>
+#include <memory>
+#include <system_error>
+
+namespace llvm {
+
+class ARMAttributeParser;
+
+namespace object {
+
+class COFFObjectFile;
+class MachOObjectFile;
+class ObjectFile;
+class SectionRef;
+class SymbolRef;
+class symbol_iterator;
+class WasmObjectFile;
+
+using section_iterator = content_iterator<SectionRef>;
+
+/// This is a value type class that represents a single relocation in the list
+/// of relocations in the object file.
+class RelocationRef {
+ DataRefImpl RelocationPimpl;
+ const ObjectFile *OwningObject = nullptr;
+
+public:
+ RelocationRef() = default;
+ RelocationRef(DataRefImpl RelocationP, const ObjectFile *Owner);
+
+ bool operator==(const RelocationRef &Other) const;
+
+ void moveNext();
+
+ uint64_t getOffset() const;
+ symbol_iterator getSymbol() const;
+ uint64_t getType() const;
+
+ /// @brief Get a string that represents the type of this relocation.
+ ///
+ /// This is for display purposes only.
+ void getTypeName(SmallVectorImpl<char> &Result) const;
+
+ DataRefImpl getRawDataRefImpl() const;
+ const ObjectFile *getObject() const;
+};
+
+using relocation_iterator = content_iterator<RelocationRef>;
+
+/// This is a value type class that represents a single section in the list of
+/// sections in the object file.
+class SectionRef {
+ friend class SymbolRef;
+
+ DataRefImpl SectionPimpl;
+ const ObjectFile *OwningObject = nullptr;
+
+public:
+ SectionRef() = default;
+ SectionRef(DataRefImpl SectionP, const ObjectFile *Owner);
+
+ bool operator==(const SectionRef &Other) const;
+ bool operator!=(const SectionRef &Other) const;
+ bool operator<(const SectionRef &Other) const;
+
+ void moveNext();
+
+ std::error_code getName(StringRef &Result) const;
+ uint64_t getAddress() const;
+ uint64_t getIndex() const;
+ uint64_t getSize() const;
+ std::error_code getContents(StringRef &Result) const;
+
+ /// @brief Get the alignment of this section as the actual value (not log 2).
+ uint64_t getAlignment() const;
+
+ bool isCompressed() const;
+ bool isText() const;
+ bool isData() const;
+ bool isBSS() const;
+ bool isVirtual() const;
+ bool isBitcode() const;
+ bool isStripped() const;
+
+ bool containsSymbol(SymbolRef S) const;
+
+ relocation_iterator relocation_begin() const;
+ relocation_iterator relocation_end() const;
+ iterator_range<relocation_iterator> relocations() const {
+ return make_range(relocation_begin(), relocation_end());
+ }
+ section_iterator getRelocatedSection() const;
+
+ DataRefImpl getRawDataRefImpl() const;
+ const ObjectFile *getObject() const;
+};
+
+/// This is a value type class that represents a single symbol in the list of
+/// symbols in the object file.
+class SymbolRef : public BasicSymbolRef {
+ friend class SectionRef;
+
+public:
+ enum Type {
+ ST_Unknown, // Type not specified
+ ST_Data,
+ ST_Debug,
+ ST_File,
+ ST_Function,
+ ST_Other
+ };
+
+ SymbolRef() = default;
+ SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner);
+ SymbolRef(const BasicSymbolRef &B) : BasicSymbolRef(B) {
+ assert(isa<ObjectFile>(BasicSymbolRef::getObject()));
+ }
+
+ Expected<StringRef> getName() const;
+ /// Returns the symbol virtual address (i.e. address at which it will be
+ /// mapped).
+ Expected<uint64_t> getAddress() const;
+
+ /// Return the value of the symbol depending on the object this can be an
+ /// offset or a virtual address.
+ uint64_t getValue() const;
+
+ /// @brief Get the alignment of this symbol as the actual value (not log 2).
+ uint32_t getAlignment() const;
+ uint64_t getCommonSize() const;
+ Expected<SymbolRef::Type> getType() const;
+
+ /// @brief Get section this symbol is defined in reference to. Result is
+ /// end_sections() if it is undefined or is an absolute symbol.
+ Expected<section_iterator> getSection() const;
+
+ const ObjectFile *getObject() const;
+};
+
+class symbol_iterator : public basic_symbol_iterator {
+public:
+ symbol_iterator(SymbolRef Sym) : basic_symbol_iterator(Sym) {}
+ symbol_iterator(const basic_symbol_iterator &B)
+ : basic_symbol_iterator(SymbolRef(B->getRawDataRefImpl(),
+ cast<ObjectFile>(B->getObject()))) {}
+
+ const SymbolRef *operator->() const {
+ const BasicSymbolRef &P = basic_symbol_iterator::operator *();
+ return static_cast<const SymbolRef*>(&P);
+ }
+
+ const SymbolRef &operator*() const {
+ const BasicSymbolRef &P = basic_symbol_iterator::operator *();
+ return static_cast<const SymbolRef&>(P);
+ }
+};
+
+/// This class is the base class for all object file types. Concrete instances
+/// of this object are created by createObjectFile, which figures out which type
+/// to create.
+class ObjectFile : public SymbolicFile {
+ virtual void anchor();
+
+protected:
+ ObjectFile(unsigned int Type, MemoryBufferRef Source);
+
+ const uint8_t *base() const {
+ return reinterpret_cast<const uint8_t *>(Data.getBufferStart());
+ }
+
+ // These functions are for SymbolRef to call internally. The main goal of
+ // this is to allow SymbolRef::SymbolPimpl to point directly to the symbol
+ // entry in the memory mapped object file. SymbolPimpl cannot contain any
+ // virtual functions because then it could not point into the memory mapped
+ // file.
+ //
+ // Implementations assume that the DataRefImpl is valid and has not been
+ // modified externally. It's UB otherwise.
+ friend class SymbolRef;
+
+ virtual Expected<StringRef> getSymbolName(DataRefImpl Symb) const = 0;
+ std::error_code printSymbolName(raw_ostream &OS,
+ DataRefImpl Symb) const override;
+ virtual Expected<uint64_t> getSymbolAddress(DataRefImpl Symb) const = 0;
+ virtual uint64_t getSymbolValueImpl(DataRefImpl Symb) const = 0;
+ virtual uint32_t getSymbolAlignment(DataRefImpl Symb) const;
+ virtual uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const = 0;
+ virtual Expected<SymbolRef::Type> getSymbolType(DataRefImpl Symb) const = 0;
+ virtual Expected<section_iterator>
+ getSymbolSection(DataRefImpl Symb) const = 0;
+
+ // Same as above for SectionRef.
+ friend class SectionRef;
+
+ virtual void moveSectionNext(DataRefImpl &Sec) const = 0;
+ virtual std::error_code getSectionName(DataRefImpl Sec,
+ StringRef &Res) const = 0;
+ virtual uint64_t getSectionAddress(DataRefImpl Sec) const = 0;
+ virtual uint64_t getSectionIndex(DataRefImpl Sec) const = 0;
+ virtual uint64_t getSectionSize(DataRefImpl Sec) const = 0;
+ virtual std::error_code getSectionContents(DataRefImpl Sec,
+ StringRef &Res) const = 0;
+ virtual uint64_t getSectionAlignment(DataRefImpl Sec) const = 0;
+ virtual bool isSectionCompressed(DataRefImpl Sec) const = 0;
+ virtual bool isSectionText(DataRefImpl Sec) const = 0;
+ virtual bool isSectionData(DataRefImpl Sec) const = 0;
+ virtual bool isSectionBSS(DataRefImpl Sec) const = 0;
+ // A section is 'virtual' if its contents aren't present in the object image.
+ virtual bool isSectionVirtual(DataRefImpl Sec) const = 0;
+ virtual bool isSectionBitcode(DataRefImpl Sec) const;
+ virtual bool isSectionStripped(DataRefImpl Sec) const;
+ virtual relocation_iterator section_rel_begin(DataRefImpl Sec) const = 0;
+ virtual relocation_iterator section_rel_end(DataRefImpl Sec) const = 0;
+ virtual section_iterator getRelocatedSection(DataRefImpl Sec) const;
+
+ // Same as above for RelocationRef.
+ friend class RelocationRef;
+ virtual void moveRelocationNext(DataRefImpl &Rel) const = 0;
+ virtual uint64_t getRelocationOffset(DataRefImpl Rel) const = 0;
+ virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const = 0;
+ virtual uint64_t getRelocationType(DataRefImpl Rel) const = 0;
+ virtual void getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const = 0;
+
+ uint64_t getSymbolValue(DataRefImpl Symb) const;
+
+public:
+ ObjectFile() = delete;
+ ObjectFile(const ObjectFile &other) = delete;
+
+ uint64_t getCommonSymbolSize(DataRefImpl Symb) const {
+ assert(getSymbolFlags(Symb) & SymbolRef::SF_Common);
+ return getCommonSymbolSizeImpl(Symb);
+ }
+
+ using symbol_iterator_range = iterator_range<symbol_iterator>;
+ symbol_iterator_range symbols() const {
+ return symbol_iterator_range(symbol_begin(), symbol_end());
+ }
+
+ virtual section_iterator section_begin() const = 0;
+ virtual section_iterator section_end() const = 0;
+
+ using section_iterator_range = iterator_range<section_iterator>;
+ section_iterator_range sections() const {
+ return section_iterator_range(section_begin(), section_end());
+ }
+
+ /// @brief The number of bytes used to represent an address in this object
+ /// file format.
+ virtual uint8_t getBytesInAddress() const = 0;
+
+ virtual StringRef getFileFormatName() const = 0;
+ virtual Triple::ArchType getArch() const = 0;
+ virtual SubtargetFeatures getFeatures() const = 0;
+ virtual void setARMSubArch(Triple &TheTriple) const { }
+
+ /// @brief Create a triple from the data in this object file.
+ Triple makeTriple() const;
+
+ virtual std::error_code
+ getBuildAttributes(ARMAttributeParser &Attributes) const {
+ return std::error_code();
+ }
+
+ /// Maps a debug section name to a standard DWARF section name.
+ virtual StringRef mapDebugSectionName(StringRef Name) const { return Name; }
+
+ /// True if this is a relocatable object (.o/.obj).
+ virtual bool isRelocatableObject() const = 0;
+
+ /// @returns Pointer to ObjectFile subclass to handle this type of object.
+ /// @param ObjectPath The path to the object file. ObjectPath.isObject must
+ /// return true.
+ /// @brief Create ObjectFile from path.
+ static Expected<OwningBinary<ObjectFile>>
+ createObjectFile(StringRef ObjectPath);
+
+ static Expected<std::unique_ptr<ObjectFile>>
+ createObjectFile(MemoryBufferRef Object, llvm::file_magic Type);
+ static Expected<std::unique_ptr<ObjectFile>>
+ createObjectFile(MemoryBufferRef Object) {
+ return createObjectFile(Object, llvm::file_magic::unknown);
+ }
+
+ static bool classof(const Binary *v) {
+ return v->isObject();
+ }
+
+ static Expected<std::unique_ptr<COFFObjectFile>>
+ createCOFFObjectFile(MemoryBufferRef Object);
+
+ static Expected<std::unique_ptr<ObjectFile>>
+ createELFObjectFile(MemoryBufferRef Object);
+
+ static Expected<std::unique_ptr<MachOObjectFile>>
+ createMachOObjectFile(MemoryBufferRef Object,
+ uint32_t UniversalCputype = 0,
+ uint32_t UniversalIndex = 0);
+
+ static Expected<std::unique_ptr<WasmObjectFile>>
+ createWasmObjectFile(MemoryBufferRef Object);
+};
+
+// Inline function definitions.
+inline SymbolRef::SymbolRef(DataRefImpl SymbolP, const ObjectFile *Owner)
+ : BasicSymbolRef(SymbolP, Owner) {}
+
+inline Expected<StringRef> SymbolRef::getName() const {
+ return getObject()->getSymbolName(getRawDataRefImpl());
+}
+
+inline Expected<uint64_t> SymbolRef::getAddress() const {
+ return getObject()->getSymbolAddress(getRawDataRefImpl());
+}
+
+inline uint64_t SymbolRef::getValue() const {
+ return getObject()->getSymbolValue(getRawDataRefImpl());
+}
+
+inline uint32_t SymbolRef::getAlignment() const {
+ return getObject()->getSymbolAlignment(getRawDataRefImpl());
+}
+
+inline uint64_t SymbolRef::getCommonSize() const {
+ return getObject()->getCommonSymbolSize(getRawDataRefImpl());
+}
+
+inline Expected<section_iterator> SymbolRef::getSection() const {
+ return getObject()->getSymbolSection(getRawDataRefImpl());
+}
+
+inline Expected<SymbolRef::Type> SymbolRef::getType() const {
+ return getObject()->getSymbolType(getRawDataRefImpl());
+}
+
+inline const ObjectFile *SymbolRef::getObject() const {
+ const SymbolicFile *O = BasicSymbolRef::getObject();
+ return cast<ObjectFile>(O);
+}
+
+/// SectionRef
+inline SectionRef::SectionRef(DataRefImpl SectionP,
+ const ObjectFile *Owner)
+ : SectionPimpl(SectionP)
+ , OwningObject(Owner) {}
+
+inline bool SectionRef::operator==(const SectionRef &Other) const {
+ return SectionPimpl == Other.SectionPimpl;
+}
+
+inline bool SectionRef::operator!=(const SectionRef &Other) const {
+ return SectionPimpl != Other.SectionPimpl;
+}
+
+inline bool SectionRef::operator<(const SectionRef &Other) const {
+ return SectionPimpl < Other.SectionPimpl;
+}
+
+inline void SectionRef::moveNext() {
+ return OwningObject->moveSectionNext(SectionPimpl);
+}
+
+inline std::error_code SectionRef::getName(StringRef &Result) const {
+ return OwningObject->getSectionName(SectionPimpl, Result);
+}
+
+inline uint64_t SectionRef::getAddress() const {
+ return OwningObject->getSectionAddress(SectionPimpl);
+}
+
+inline uint64_t SectionRef::getIndex() const {
+ return OwningObject->getSectionIndex(SectionPimpl);
+}
+
+inline uint64_t SectionRef::getSize() const {
+ return OwningObject->getSectionSize(SectionPimpl);
+}
+
+inline std::error_code SectionRef::getContents(StringRef &Result) const {
+ return OwningObject->getSectionContents(SectionPimpl, Result);
+}
+
+inline uint64_t SectionRef::getAlignment() const {
+ return OwningObject->getSectionAlignment(SectionPimpl);
+}
+
+inline bool SectionRef::isCompressed() const {
+ return OwningObject->isSectionCompressed(SectionPimpl);
+}
+
+inline bool SectionRef::isText() const {
+ return OwningObject->isSectionText(SectionPimpl);
+}
+
+inline bool SectionRef::isData() const {
+ return OwningObject->isSectionData(SectionPimpl);
+}
+
+inline bool SectionRef::isBSS() const {
+ return OwningObject->isSectionBSS(SectionPimpl);
+}
+
+inline bool SectionRef::isVirtual() const {
+ return OwningObject->isSectionVirtual(SectionPimpl);
+}
+
+inline bool SectionRef::isBitcode() const {
+ return OwningObject->isSectionBitcode(SectionPimpl);
+}
+
+inline bool SectionRef::isStripped() const {
+ return OwningObject->isSectionStripped(SectionPimpl);
+}
+
+inline relocation_iterator SectionRef::relocation_begin() const {
+ return OwningObject->section_rel_begin(SectionPimpl);
+}
+
+inline relocation_iterator SectionRef::relocation_end() const {
+ return OwningObject->section_rel_end(SectionPimpl);
+}
+
+inline section_iterator SectionRef::getRelocatedSection() const {
+ return OwningObject->getRelocatedSection(SectionPimpl);
+}
+
+inline DataRefImpl SectionRef::getRawDataRefImpl() const {
+ return SectionPimpl;
+}
+
+inline const ObjectFile *SectionRef::getObject() const {
+ return OwningObject;
+}
+
+/// RelocationRef
+inline RelocationRef::RelocationRef(DataRefImpl RelocationP,
+ const ObjectFile *Owner)
+ : RelocationPimpl(RelocationP)
+ , OwningObject(Owner) {}
+
+inline bool RelocationRef::operator==(const RelocationRef &Other) const {
+ return RelocationPimpl == Other.RelocationPimpl;
+}
+
+inline void RelocationRef::moveNext() {
+ return OwningObject->moveRelocationNext(RelocationPimpl);
+}
+
+inline uint64_t RelocationRef::getOffset() const {
+ return OwningObject->getRelocationOffset(RelocationPimpl);
+}
+
+inline symbol_iterator RelocationRef::getSymbol() const {
+ return OwningObject->getRelocationSymbol(RelocationPimpl);
+}
+
+inline uint64_t RelocationRef::getType() const {
+ return OwningObject->getRelocationType(RelocationPimpl);
+}
+
+inline void RelocationRef::getTypeName(SmallVectorImpl<char> &Result) const {
+ return OwningObject->getRelocationTypeName(RelocationPimpl, Result);
+}
+
+inline DataRefImpl RelocationRef::getRawDataRefImpl() const {
+ return RelocationPimpl;
+}
+
+inline const ObjectFile *RelocationRef::getObject() const {
+ return OwningObject;
+}
+
+} // end namespace object
+
+} // end namespace llvm
+
+#endif // LLVM_OBJECT_OBJECTFILE_H