Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/BinaryFormat/Wasm.h b/linux-x64/clang/include/llvm/BinaryFormat/Wasm.h
new file mode 100644
index 0000000..91b217f
--- /dev/null
+++ b/linux-x64/clang/include/llvm/BinaryFormat/Wasm.h
@@ -0,0 +1,290 @@
+//===- Wasm.h - Wasm object file format -------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines manifest constants for the wasm object file format.
+// See: https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_BINARYFORMAT_WASM_H
+#define LLVM_BINARYFORMAT_WASM_H
+
+#include "llvm/ADT/ArrayRef.h"
+
+namespace llvm {
+namespace wasm {
+
+// Object file magic string.
+const char WasmMagic[] = {'\0', 'a', 's', 'm'};
+// Wasm binary format version
+const uint32_t WasmVersion = 0x1;
+// Wasm uses a 64k page size
+const uint32_t WasmPageSize = 65536;
+
+struct WasmObjectHeader {
+ StringRef Magic;
+ uint32_t Version;
+};
+
+struct WasmSignature {
+ std::vector<uint8_t> ParamTypes;
+ uint8_t ReturnType;
+};
+
+struct WasmExport {
+ StringRef Name;
+ uint8_t Kind;
+ uint32_t Index;
+};
+
+struct WasmLimits {
+ uint8_t Flags;
+ uint32_t Initial;
+ uint32_t Maximum;
+};
+
+struct WasmTable {
+ uint8_t ElemType;
+ WasmLimits Limits;
+};
+
+struct WasmInitExpr {
+ uint8_t Opcode;
+ union {
+ int32_t Int32;
+ int64_t Int64;
+ int32_t Float32;
+ int64_t Float64;
+ uint32_t Global;
+ } Value;
+};
+
+struct WasmGlobalType {
+ uint8_t Type;
+ bool Mutable;
+};
+
+struct WasmGlobal {
+ uint32_t Index;
+ WasmGlobalType Type;
+ WasmInitExpr InitExpr;
+ StringRef Name; // from the "linking" or "names" section
+};
+
+struct WasmImport {
+ StringRef Module;
+ StringRef Field;
+ uint8_t Kind;
+ union {
+ uint32_t SigIndex;
+ WasmGlobalType Global;
+ WasmTable Table;
+ WasmLimits Memory;
+ };
+};
+
+struct WasmLocalDecl {
+ uint8_t Type;
+ uint32_t Count;
+};
+
+struct WasmFunction {
+ uint32_t Index;
+ std::vector<WasmLocalDecl> Locals;
+ ArrayRef<uint8_t> Body;
+ uint32_t CodeSectionOffset;
+ uint32_t Size;
+ StringRef Name; // from the "linking" or "names" section
+ uint32_t Comdat; // from the "comdat info" section
+};
+
+struct WasmDataSegment {
+ uint32_t MemoryIndex;
+ WasmInitExpr Offset;
+ ArrayRef<uint8_t> Content;
+ StringRef Name;
+ uint32_t Alignment;
+ uint32_t Flags;
+ uint32_t Comdat; // from the "comdat info" section
+};
+
+struct WasmElemSegment {
+ uint32_t TableIndex;
+ WasmInitExpr Offset;
+ std::vector<uint32_t> Functions;
+};
+
+// Represents the location of a Wasm data symbol within a WasmDataSegment, as
+// the index of the segment, and the offset and size within the segment.
+struct WasmDataReference {
+ uint32_t Segment;
+ uint32_t Offset;
+ uint32_t Size;
+};
+
+struct WasmRelocation {
+ uint8_t Type; // The type of the relocation.
+ uint32_t Index; // Index into either symbol or type index space.
+ uint64_t Offset; // Offset from the start of the section.
+ int64_t Addend; // A value to add to the symbol.
+};
+
+struct WasmInitFunc {
+ uint32_t Priority;
+ uint32_t Symbol;
+};
+
+struct WasmSymbolInfo {
+ StringRef Name;
+ uint8_t Kind;
+ uint32_t Flags;
+ union {
+ // For function or global symbols, the index in function of global index
+ // space.
+ uint32_t ElementIndex;
+ // For a data symbols, the address of the data relative to segment.
+ WasmDataReference DataRef;
+ };
+};
+
+struct WasmFunctionName {
+ uint32_t Index;
+ StringRef Name;
+};
+
+struct WasmLinkingData {
+ std::vector<WasmInitFunc> InitFunctions;
+ std::vector<StringRef> Comdats;
+ std::vector<WasmSymbolInfo> SymbolTable;
+};
+
+enum : unsigned {
+ WASM_SEC_CUSTOM = 0, // Custom / User-defined section
+ WASM_SEC_TYPE = 1, // Function signature declarations
+ WASM_SEC_IMPORT = 2, // Import declarations
+ WASM_SEC_FUNCTION = 3, // Function declarations
+ WASM_SEC_TABLE = 4, // Indirect function table and other tables
+ WASM_SEC_MEMORY = 5, // Memory attributes
+ WASM_SEC_GLOBAL = 6, // Global declarations
+ WASM_SEC_EXPORT = 7, // Exports
+ WASM_SEC_START = 8, // Start function declaration
+ WASM_SEC_ELEM = 9, // Elements section
+ WASM_SEC_CODE = 10, // Function bodies (code)
+ WASM_SEC_DATA = 11 // Data segments
+};
+
+// Type immediate encodings used in various contexts.
+enum : unsigned {
+ WASM_TYPE_I32 = 0x7F,
+ WASM_TYPE_I64 = 0x7E,
+ WASM_TYPE_F32 = 0x7D,
+ WASM_TYPE_F64 = 0x7C,
+ WASM_TYPE_ANYFUNC = 0x70,
+ WASM_TYPE_EXCEPT_REF = 0x68,
+ WASM_TYPE_FUNC = 0x60,
+ WASM_TYPE_NORESULT = 0x40, // for blocks with no result values
+};
+
+// Kinds of externals (for imports and exports).
+enum : unsigned {
+ WASM_EXTERNAL_FUNCTION = 0x0,
+ WASM_EXTERNAL_TABLE = 0x1,
+ WASM_EXTERNAL_MEMORY = 0x2,
+ WASM_EXTERNAL_GLOBAL = 0x3,
+};
+
+// Opcodes used in initializer expressions.
+enum : unsigned {
+ WASM_OPCODE_END = 0x0b,
+ WASM_OPCODE_GET_GLOBAL = 0x23,
+ WASM_OPCODE_I32_CONST = 0x41,
+ WASM_OPCODE_I64_CONST = 0x42,
+ WASM_OPCODE_F32_CONST = 0x43,
+ WASM_OPCODE_F64_CONST = 0x44,
+};
+
+enum : unsigned {
+ WASM_LIMITS_FLAG_HAS_MAX = 0x1,
+};
+
+// Subset of types that a value can have
+enum class ValType {
+ I32 = WASM_TYPE_I32,
+ I64 = WASM_TYPE_I64,
+ F32 = WASM_TYPE_F32,
+ F64 = WASM_TYPE_F64,
+ EXCEPT_REF = WASM_TYPE_EXCEPT_REF,
+};
+
+// Kind codes used in the custom "name" section
+enum : unsigned {
+ WASM_NAMES_FUNCTION = 0x1,
+ WASM_NAMES_LOCAL = 0x2,
+};
+
+// Kind codes used in the custom "linking" section
+enum : unsigned {
+ WASM_SEGMENT_INFO = 0x5,
+ WASM_INIT_FUNCS = 0x6,
+ WASM_COMDAT_INFO = 0x7,
+ WASM_SYMBOL_TABLE = 0x8,
+};
+
+// Kind codes used in the custom "linking" section in the WASM_COMDAT_INFO
+enum : unsigned {
+ WASM_COMDAT_DATA = 0x0,
+ WASM_COMDAT_FUNCTION = 0x1,
+};
+
+// Kind codes used in the custom "linking" section in the WASM_SYMBOL_TABLE
+enum WasmSymbolType : unsigned {
+ WASM_SYMBOL_TYPE_FUNCTION = 0x0,
+ WASM_SYMBOL_TYPE_DATA = 0x1,
+ WASM_SYMBOL_TYPE_GLOBAL = 0x2,
+};
+
+const unsigned WASM_SYMBOL_BINDING_MASK = 0x3;
+const unsigned WASM_SYMBOL_VISIBILITY_MASK = 0xc;
+
+const unsigned WASM_SYMBOL_BINDING_GLOBAL = 0x0;
+const unsigned WASM_SYMBOL_BINDING_WEAK = 0x1;
+const unsigned WASM_SYMBOL_BINDING_LOCAL = 0x2;
+const unsigned WASM_SYMBOL_VISIBILITY_DEFAULT = 0x0;
+const unsigned WASM_SYMBOL_VISIBILITY_HIDDEN = 0x4;
+const unsigned WASM_SYMBOL_UNDEFINED = 0x10;
+
+#define WASM_RELOC(name, value) name = value,
+
+enum : unsigned {
+#include "WasmRelocs.def"
+};
+
+#undef WASM_RELOC
+
+// Useful comparison operators
+inline bool operator==(const WasmSignature &LHS, const WasmSignature &RHS) {
+ return LHS.ReturnType == RHS.ReturnType && LHS.ParamTypes == RHS.ParamTypes;
+}
+
+inline bool operator!=(const WasmSignature &LHS, const WasmSignature &RHS) {
+ return !(LHS == RHS);
+}
+
+inline bool operator==(const WasmGlobalType &LHS, const WasmGlobalType &RHS) {
+ return LHS.Type == RHS.Type && LHS.Mutable == RHS.Mutable;
+}
+
+inline bool operator!=(const WasmGlobalType &LHS, const WasmGlobalType &RHS) {
+ return !(LHS == RHS);
+}
+
+} // end namespace wasm
+} // end namespace llvm
+
+#endif