Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Object/Wasm.h b/linux-x64/clang/include/llvm/Object/Wasm.h
new file mode 100644
index 0000000..d49acf3
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Object/Wasm.h
@@ -0,0 +1,278 @@
+//===- WasmObjectFile.h - Wasm object file implementation -------*- 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 the WasmObjectFile class, which implements the ObjectFile
+// interface for Wasm files.
+//
+// See: https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_WASM_H
+#define LLVM_OBJECT_WASM_H
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/BinaryFormat/Wasm.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include <cstddef>
+#include <cstdint>
+#include <vector>
+
+namespace llvm {
+namespace object {
+
+class WasmSymbol {
+public:
+ WasmSymbol(const wasm::WasmSymbolInfo &Info,
+ const wasm::WasmSignature *FunctionType,
+ const wasm::WasmGlobalType *GlobalType)
+ : Info(Info), FunctionType(FunctionType), GlobalType(GlobalType) {}
+
+ const wasm::WasmSymbolInfo &Info;
+ const wasm::WasmSignature *FunctionType;
+ const wasm::WasmGlobalType *GlobalType;
+
+ bool isTypeFunction() const {
+ return Info.Kind == wasm::WASM_SYMBOL_TYPE_FUNCTION;
+ }
+
+ bool isTypeData() const { return Info.Kind == wasm::WASM_SYMBOL_TYPE_DATA; }
+
+ bool isTypeGlobal() const {
+ return Info.Kind == wasm::WASM_SYMBOL_TYPE_GLOBAL;
+ }
+
+ bool isDefined() const { return !isUndefined(); }
+
+ bool isUndefined() const {
+ return (Info.Flags & wasm::WASM_SYMBOL_UNDEFINED) != 0;
+ }
+
+ bool isBindingWeak() const {
+ return getBinding() == wasm::WASM_SYMBOL_BINDING_WEAK;
+ }
+
+ bool isBindingGlobal() const {
+ return getBinding() == wasm::WASM_SYMBOL_BINDING_GLOBAL;
+ }
+
+ bool isBindingLocal() const {
+ return getBinding() == wasm::WASM_SYMBOL_BINDING_LOCAL;
+ }
+
+ unsigned getBinding() const {
+ return Info.Flags & wasm::WASM_SYMBOL_BINDING_MASK;
+ }
+
+ bool isHidden() const {
+ return getVisibility() == wasm::WASM_SYMBOL_VISIBILITY_HIDDEN;
+ }
+
+ unsigned getVisibility() const {
+ return Info.Flags & wasm::WASM_SYMBOL_VISIBILITY_MASK;
+ }
+
+ void print(raw_ostream &Out) const {
+ Out << "Name=" << Info.Name << ", Kind=" << Info.Kind
+ << ", Flags=" << Info.Flags;
+ if (!isTypeData()) {
+ Out << ", ElemIndex=" << Info.ElementIndex;
+ } else if (isDefined()) {
+ Out << ", Segment=" << Info.DataRef.Segment;
+ Out << ", Offset=" << Info.DataRef.Offset;
+ Out << ", Size=" << Info.DataRef.Size;
+ }
+ }
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+ LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
+#endif
+};
+
+struct WasmSection {
+ WasmSection() = default;
+
+ uint32_t Type = 0; // Section type (See below)
+ uint32_t Offset = 0; // Offset with in the file
+ StringRef Name; // Section name (User-defined sections only)
+ ArrayRef<uint8_t> Content; // Section content
+ std::vector<wasm::WasmRelocation> Relocations; // Relocations for this section
+};
+
+struct WasmSegment {
+ uint32_t SectionOffset;
+ wasm::WasmDataSegment Data;
+};
+
+class WasmObjectFile : public ObjectFile {
+
+public:
+ WasmObjectFile(MemoryBufferRef Object, Error &Err);
+
+ const wasm::WasmObjectHeader &getHeader() const;
+ const WasmSymbol &getWasmSymbol(const DataRefImpl &Symb) const;
+ const WasmSymbol &getWasmSymbol(const SymbolRef &Symbol) const;
+ const WasmSection &getWasmSection(const SectionRef &Section) const;
+ const wasm::WasmRelocation &getWasmRelocation(const RelocationRef& Ref) const;
+
+ static bool classof(const Binary *v) { return v->isWasm(); }
+
+ ArrayRef<wasm::WasmSignature> types() const { return Signatures; }
+ ArrayRef<uint32_t> functionTypes() const { return FunctionTypes; }
+ ArrayRef<wasm::WasmImport> imports() const { return Imports; }
+ ArrayRef<wasm::WasmTable> tables() const { return Tables; }
+ ArrayRef<wasm::WasmLimits> memories() const { return Memories; }
+ ArrayRef<wasm::WasmGlobal> globals() const { return Globals; }
+ ArrayRef<wasm::WasmExport> exports() const { return Exports; }
+ ArrayRef<WasmSymbol> syms() const { return Symbols; }
+ const wasm::WasmLinkingData& linkingData() const { return LinkingData; }
+ uint32_t getNumberOfSymbols() const { return Symbols.size(); }
+ ArrayRef<wasm::WasmElemSegment> elements() const { return ElemSegments; }
+ ArrayRef<WasmSegment> dataSegments() const { return DataSegments; }
+ ArrayRef<wasm::WasmFunction> functions() const { return Functions; }
+ ArrayRef<wasm::WasmFunctionName> debugNames() const { return DebugNames; }
+ uint32_t startFunction() const { return StartFunction; }
+ uint32_t getNumImportedGlobals() const { return NumImportedGlobals; }
+ uint32_t getNumImportedFunctions() const { return NumImportedFunctions; }
+
+ void moveSymbolNext(DataRefImpl &Symb) const override;
+
+ uint32_t getSymbolFlags(DataRefImpl Symb) const override;
+
+ basic_symbol_iterator symbol_begin() const override;
+
+ basic_symbol_iterator symbol_end() const override;
+ Expected<StringRef> getSymbolName(DataRefImpl Symb) const override;
+
+ Expected<uint64_t> getSymbolAddress(DataRefImpl Symb) const override;
+ uint64_t getWasmSymbolValue(const WasmSymbol& Sym) const;
+ uint64_t getSymbolValueImpl(DataRefImpl Symb) const override;
+ uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
+ uint64_t getCommonSymbolSizeImpl(DataRefImpl Symb) const override;
+ Expected<SymbolRef::Type> getSymbolType(DataRefImpl Symb) const override;
+ Expected<section_iterator> getSymbolSection(DataRefImpl Symb) const override;
+
+ // Overrides from SectionRef.
+ void moveSectionNext(DataRefImpl &Sec) const override;
+ std::error_code getSectionName(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAddress(DataRefImpl Sec) const override;
+ uint64_t getSectionIndex(DataRefImpl Sec) const override;
+ uint64_t getSectionSize(DataRefImpl Sec) const override;
+ std::error_code getSectionContents(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAlignment(DataRefImpl Sec) const override;
+ bool isSectionCompressed(DataRefImpl Sec) const override;
+ bool isSectionText(DataRefImpl Sec) const override;
+ bool isSectionData(DataRefImpl Sec) const override;
+ bool isSectionBSS(DataRefImpl Sec) const override;
+ bool isSectionVirtual(DataRefImpl Sec) const override;
+ bool isSectionBitcode(DataRefImpl Sec) const override;
+ relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
+ relocation_iterator section_rel_end(DataRefImpl Sec) const override;
+
+ // Overrides from RelocationRef.
+ void moveRelocationNext(DataRefImpl &Rel) const override;
+ uint64_t getRelocationOffset(DataRefImpl Rel) const override;
+ symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
+ uint64_t getRelocationType(DataRefImpl Rel) const override;
+ void getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const override;
+
+ section_iterator section_begin() const override;
+ section_iterator section_end() const override;
+ uint8_t getBytesInAddress() const override;
+ StringRef getFileFormatName() const override;
+ Triple::ArchType getArch() const override;
+ SubtargetFeatures getFeatures() const override;
+ bool isRelocatableObject() const override;
+
+private:
+ bool isValidFunctionIndex(uint32_t Index) const;
+ bool isDefinedFunctionIndex(uint32_t Index) const;
+ bool isValidGlobalIndex(uint32_t Index) const;
+ bool isDefinedGlobalIndex(uint32_t Index) const;
+ bool isValidFunctionSymbol(uint32_t Index) const;
+ bool isValidGlobalSymbol(uint32_t Index) const;
+ bool isValidDataSymbol(uint32_t Index) const;
+ wasm::WasmFunction &getDefinedFunction(uint32_t Index);
+ wasm::WasmGlobal &getDefinedGlobal(uint32_t Index);
+
+ const WasmSection &getWasmSection(DataRefImpl Ref) const;
+ const wasm::WasmRelocation &getWasmRelocation(DataRefImpl Ref) const;
+
+ WasmSection* findCustomSectionByName(StringRef Name);
+ WasmSection* findSectionByType(uint32_t Type);
+
+ const uint8_t *getPtr(size_t Offset) const;
+ Error parseSection(WasmSection &Sec);
+ Error parseCustomSection(WasmSection &Sec, const uint8_t *Ptr,
+ const uint8_t *End);
+
+ // Standard section types
+ Error parseTypeSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseImportSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseFunctionSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseTableSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseMemorySection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseGlobalSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseExportSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseStartSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseElemSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseCodeSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseDataSection(const uint8_t *Ptr, const uint8_t *End);
+
+ // Custom section types
+ Error parseNameSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseLinkingSection(const uint8_t *Ptr, const uint8_t *End);
+ Error parseLinkingSectionSymtab(const uint8_t *&Ptr, const uint8_t *End);
+ Error parseLinkingSectionComdat(const uint8_t *&Ptr, const uint8_t *End);
+ Error parseRelocSection(StringRef Name, const uint8_t *Ptr,
+ const uint8_t *End);
+
+ wasm::WasmObjectHeader Header;
+ std::vector<WasmSection> Sections;
+ std::vector<wasm::WasmSignature> Signatures;
+ std::vector<uint32_t> FunctionTypes;
+ std::vector<wasm::WasmTable> Tables;
+ std::vector<wasm::WasmLimits> Memories;
+ std::vector<wasm::WasmGlobal> Globals;
+ std::vector<wasm::WasmImport> Imports;
+ std::vector<wasm::WasmExport> Exports;
+ std::vector<wasm::WasmElemSegment> ElemSegments;
+ std::vector<WasmSegment> DataSegments;
+ std::vector<wasm::WasmFunction> Functions;
+ std::vector<WasmSymbol> Symbols;
+ std::vector<wasm::WasmFunctionName> DebugNames;
+ uint32_t StartFunction = -1;
+ bool HasLinkingSection = false;
+ wasm::WasmLinkingData LinkingData;
+ uint32_t NumImportedGlobals = 0;
+ uint32_t NumImportedFunctions = 0;
+ uint32_t CodeSection = 0;
+ uint32_t DataSection = 0;
+ uint32_t GlobalSection = 0;
+};
+
+} // end namespace object
+
+inline raw_ostream &operator<<(raw_ostream &OS,
+ const object::WasmSymbol &Sym) {
+ Sym.print(OS);
+ return OS;
+}
+
+} // end namespace llvm
+
+#endif // LLVM_OBJECT_WASM_H