/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * vim: set ts=8 sts=4 et sw=4 tw=99: * * Copyright 2015 Mozilla Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef wasm_binary_h #define wasm_binary_h #include "builtin/SIMD.h" namespace js { namespace wasm { static const uint32_t MagicNumber = 0x6d736100; // "\0asm" static const uint32_t EncodingVersion = 0x01; // 0xd is equivalent to 0x1 modulo unreachability validation rules, so to aid // transition of toolchain, accept both for a short period of time. static const uint32_t PrevEncodingVersion = 0x0d; enum class SectionId { UserDefined = 0, Type = 1, Import = 2, Function = 3, Table = 4, Memory = 5, Global = 6, Export = 7, Start = 8, Elem = 9, Code = 10, Data = 11 }; static const char NameSectionName[] = "name"; enum class TypeCode { I32 = 0x7f, // SLEB128(-0x01) I64 = 0x7e, // SLEB128(-0x02) F32 = 0x7d, // SLEB128(-0x03) F64 = 0x7c, // SLEB128(-0x04) // Only emitted internally for asm.js, likely to get collapsed into I128 I8x16 = 0x7b, I16x8 = 0x7a, I32x4 = 0x79, F32x4 = 0x78, B8x16 = 0x77, B16x8 = 0x76, B32x4 = 0x75, // A function pointer with any signature AnyFunc = 0x70, // SLEB128(-0x10) // Type constructor for function types Func = 0x60, // SLEB128(-0x20) // Special code representing the block signature ()->() BlockVoid = 0x40, // SLEB128(-0x40) Limit = 0x80 }; enum class ValType { I32 = uint8_t(TypeCode::I32), I64 = uint8_t(TypeCode::I64), F32 = uint8_t(TypeCode::F32), F64 = uint8_t(TypeCode::F64), // ------------------------------------------------------------------------ // The rest of these types are currently only emitted internally when // compiling asm.js and are rejected by wasm validation. I8x16 = uint8_t(TypeCode::I8x16), I16x8 = uint8_t(TypeCode::I16x8), I32x4 = uint8_t(TypeCode::I32x4), F32x4 = uint8_t(TypeCode::F32x4), B8x16 = uint8_t(TypeCode::B8x16), B16x8 = uint8_t(TypeCode::B16x8), B32x4 = uint8_t(TypeCode::B32x4) }; typedef Vector<ValType, 8, SystemAllocPolicy> ValTypeVector; enum class DefinitionKind { Function = 0x00, Table = 0x01, Memory = 0x02, Global = 0x03 }; enum class GlobalTypeImmediate { IsMutable = 0x1, AllowedMask = 0x1 }; enum class MemoryTableFlags { Default = 0x0 }; enum class Op { // Control flow operators Unreachable = 0x00, Nop = 0x01, Block = 0x02, Loop = 0x03, If = 0x04, Else = 0x05, End = 0x0b, Br = 0x0c, BrIf = 0x0d, BrTable = 0x0e, Return = 0x0f, // Call operators Call = 0x10, CallIndirect = 0x11, // Parametric operators Drop = 0x1a, Select = 0x1b, // Variable access GetLocal = 0x20, SetLocal = 0x21, TeeLocal = 0x22, GetGlobal = 0x23, SetGlobal = 0x24, // Memory-related operators I32Load = 0x28, I64Load = 0x29, F32Load = 0x2a, F64Load = 0x2b, I32Load8S = 0x2c, I32Load8U = 0x2d, I32Load16S = 0x2e, I32Load16U = 0x2f, I64Load8S = 0x30, I64Load8U = 0x31, I64Load16S = 0x32, I64Load16U = 0x33, I64Load32S = 0x34, I64Load32U = 0x35, I32Store = 0x36, I64Store = 0x37, F32Store = 0x38, F64Store = 0x39, I32Store8 = 0x3a, I32Store16 = 0x3b, I64Store8 = 0x3c, I64Store16 = 0x3d, I64Store32 = 0x3e, CurrentMemory = 0x3f, GrowMemory = 0x40, // Constants I32Const = 0x41, I64Const = 0x42, F32Const = 0x43, F64Const = 0x44, // Comparison operators I32Eqz = 0x45, I32Eq = 0x46, I32Ne = 0x47, I32LtS = 0x48, I32LtU = 0x49, I32GtS = 0x4a, I32GtU = 0x4b, I32LeS = 0x4c, I32LeU = 0x4d, I32GeS = 0x4e, I32GeU = 0x4f, I64Eqz = 0x50, I64Eq = 0x51, I64Ne = 0x52, I64LtS = 0x53, I64LtU = 0x54, I64GtS = 0x55, I64GtU = 0x56, I64LeS = 0x57, I64LeU = 0x58, I64GeS = 0x59, I64GeU = 0x5a, F32Eq = 0x5b, F32Ne = 0x5c, F32Lt = 0x5d, F32Gt = 0x5e, F32Le = 0x5f, F32Ge = 0x60, F64Eq = 0x61, F64Ne = 0x62, F64Lt = 0x63, F64Gt = 0x64, F64Le = 0x65, F64Ge = 0x66, // Numeric operators I32Clz = 0x67, I32Ctz = 0x68, I32Popcnt = 0x69, I32Add = 0x6a, I32Sub = 0x6b, I32Mul = 0x6c, I32DivS = 0x6d, I32DivU = 0x6e, I32RemS = 0x6f, I32RemU = 0x70, I32And = 0x71, I32Or = 0x72, I32Xor = 0x73, I32Shl = 0x74, I32ShrS = 0x75, I32ShrU = 0x76, I32Rotl = 0x77, I32Rotr = 0x78, I64Clz = 0x79, I64Ctz = 0x7a, I64Popcnt = 0x7b, I64Add = 0x7c, I64Sub = 0x7d, I64Mul = 0x7e, I64DivS = 0x7f, I64DivU = 0x80, I64RemS = 0x81, I64RemU = 0x82, I64And = 0x83, I64Or = 0x84, I64Xor = 0x85, I64Shl = 0x86, I64ShrS = 0x87, I64ShrU = 0x88, I64Rotl = 0x89, I64Rotr = 0x8a, F32Abs = 0x8b, F32Neg = 0x8c, F32Ceil = 0x8d, F32Floor = 0x8e, F32Trunc = 0x8f, F32Nearest = 0x90, F32Sqrt = 0x91, F32Add = 0x92, F32Sub = 0x93, F32Mul = 0x94, F32Div = 0x95, F32Min = 0x96, F32Max = 0x97, F32CopySign = 0x98, F64Abs = 0x99, F64Neg = 0x9a, F64Ceil = 0x9b, F64Floor = 0x9c, F64Trunc = 0x9d, F64Nearest = 0x9e, F64Sqrt = 0x9f, F64Add = 0xa0, F64Sub = 0xa1, F64Mul = 0xa2, F64Div = 0xa3, F64Min = 0xa4, F64Max = 0xa5, F64CopySign = 0xa6, // Conversions I32WrapI64 = 0xa7, I32TruncSF32 = 0xa8, I32TruncUF32 = 0xa9, I32TruncSF64 = 0xaa, I32TruncUF64 = 0xab, I64ExtendSI32 = 0xac, I64ExtendUI32 = 0xad, I64TruncSF32 = 0xae, I64TruncUF32 = 0xaf, I64TruncSF64 = 0xb0, I64TruncUF64 = 0xb1, F32ConvertSI32 = 0xb2, F32ConvertUI32 = 0xb3, F32ConvertSI64 = 0xb4, F32ConvertUI64 = 0xb5, F32DemoteF64 = 0xb6, F64ConvertSI32 = 0xb7, F64ConvertUI32 = 0xb8, F64ConvertSI64 = 0xb9, F64ConvertUI64 = 0xba, F64PromoteF32 = 0xbb, // Reinterpretations I32ReinterpretF32 = 0xbc, I64ReinterpretF64 = 0xbd, F32ReinterpretI32 = 0xbe, F64ReinterpretI64 = 0xbf, // ------------------------------------------------------------------------ // The rest of these operators are currently only emitted internally when // compiling asm.js and are rejected by wasm validation. // asm.js-specific operators TeeGlobal = 0xc8, I32Min, I32Max, I32Neg, I32BitNot, I32Abs, F32TeeStoreF64, F64TeeStoreF32, I32TeeStore8, I32TeeStore16, I64TeeStore8, I64TeeStore16, I64TeeStore32, I32TeeStore, I64TeeStore, F32TeeStore, F64TeeStore, F64Mod, F64Sin, F64Cos, F64Tan, F64Asin, F64Acos, F64Atan, F64Exp, F64Log, F64Pow, F64Atan2, // asm.js-style call_indirect with the callee evaluated first. OldCallIndirect, // Atomics I32AtomicsCompareExchange, I32AtomicsExchange, I32AtomicsLoad, I32AtomicsStore, I32AtomicsBinOp, // SIMD #define SIMD_OPCODE(TYPE, OP) TYPE##OP, #define _(OP) SIMD_OPCODE(I8x16, OP) FORALL_INT8X16_ASMJS_OP(_) I8x16Constructor, I8x16Const, #undef _ // Unsigned I8x16 operations. These are the SIMD.Uint8x16 operations that // behave differently from their SIMD.Int8x16 counterparts. I8x16extractLaneU, I8x16addSaturateU, I8x16subSaturateU, I8x16shiftRightByScalarU, I8x16lessThanU, I8x16lessThanOrEqualU, I8x16greaterThanU, I8x16greaterThanOrEqualU, #define SIMD_OPCODE(TYPE, OP) TYPE##OP, #define _(OP) SIMD_OPCODE(I16x8, OP) FORALL_INT16X8_ASMJS_OP(_) I16x8Constructor, I16x8Const, #undef _ // Unsigned I16x8 operations. These are the SIMD.Uint16x8 operations that // behave differently from their SIMD.Int16x8 counterparts. I16x8extractLaneU, I16x8addSaturateU, I16x8subSaturateU, I16x8shiftRightByScalarU, I16x8lessThanU, I16x8lessThanOrEqualU, I16x8greaterThanU, I16x8greaterThanOrEqualU, #define SIMD_OPCODE(TYPE, OP) TYPE##OP, #define _(OP) SIMD_OPCODE(I32x4, OP) FORALL_INT32X4_ASMJS_OP(_) I32x4Constructor, I32x4Const, #undef _ // Unsigned I32x4 operations. These are the SIMD.Uint32x4 operations that // behave differently from their SIMD.Int32x4 counterparts. I32x4shiftRightByScalarU, I32x4lessThanU, I32x4lessThanOrEqualU, I32x4greaterThanU, I32x4greaterThanOrEqualU, I32x4fromFloat32x4U, #define _(OP) SIMD_OPCODE(F32x4, OP) FORALL_FLOAT32X4_ASMJS_OP(_) F32x4Constructor, F32x4Const, #undef _ #define _(OP) SIMD_OPCODE(B8x16, OP) FORALL_BOOL_SIMD_OP(_) B8x16Constructor, B8x16Const, #undef _ #undef OPCODE #define _(OP) SIMD_OPCODE(B16x8, OP) FORALL_BOOL_SIMD_OP(_) B16x8Constructor, B16x8Const, #undef _ #undef OPCODE #define _(OP) SIMD_OPCODE(B32x4, OP) FORALL_BOOL_SIMD_OP(_) B32x4Constructor, B32x4Const, #undef _ #undef OPCODE Limit }; // Telemetry sample values for the JS_AOT_USAGE key, indicating whether asm.js // or WebAssembly is used. enum class Telemetry { ASMJS = 0, WASM = 1 }; } // namespace wasm } // namespace js #endif // wasm_binary_h