Update prebuilt Clang to r353983e.HEADq10.0

clang 9.0.5 (based on r353983e) from build 5696680.

Bug: http://b/135931688
Bug: http://b/136008926
Test: N/A
Change-Id: I922d17410047d2e2df4625615352c588ee71b203

1 files changed, 535 insertions, 0 deletions

diff --git a/clang-r353983e/include/llvm/Object/ObjectFile.h b/clang-r353983e/include/llvm/Object/ObjectFile.h
new file mode 100644
index 00000000..f13775c9
--- /dev/null
+++ b/clang-r353983e/include/llvm/Object/ObjectFile.h
@@ -0,0 +1,535 @@
+//===- ObjectFile.h - File format independent object file -------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// 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;
+
+  /// 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;
+
+  /// Get the alignment of this section as the actual value (not log 2).
+  uint64_t getAlignment() const;
+
+  bool isCompressed() const;
+  /// Whether this section contains instructions.
+  bool isText() const;
+  /// Whether this section contains data, not instructions.
+  bool isData() const;
+  /// Whether this section contains BSS uninitialized data.
+  bool isBSS() const;
+  bool isVirtual() const;
+  bool isBitcode() const;
+  bool isStripped() const;
+
+  /// Whether this section will be placed in the text segment, according to the
+  /// Berkeley size format. This is true if the section is allocatable, and
+  /// contains either code or readonly data.
+  bool isBerkeleyText() const;
+  /// Whether this section will be placed in the data segment, according to the
+  /// Berkeley size format. This is true if the section is allocatable and
+  /// contains data (e.g. PROGBITS), but is not text.
+  bool isBerkeleyData() 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;
+
+  /// 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;
+
+  /// 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 bool isBerkeleyText(DataRefImpl Sec) const;
+  virtual bool isBerkeleyData(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);
+  }
+
+  virtual std::vector<SectionRef> dynamic_relocation_sections() const {
+    return std::vector<SectionRef>();
+  }
+
+  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());
+  }
+
+  /// 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 { }
+  virtual Expected<uint64_t> getStartAddress() const {
+    return errorCodeToError(object_error::parse_failed);
+  };
+
+  /// 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.
+  /// 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 bool SectionRef::isBerkeleyText() const {
+  return OwningObject->isBerkeleyText(SectionPimpl);
+}
+
+inline bool SectionRef::isBerkeleyData() const {
+  return OwningObject->isBerkeleyData(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