Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/wasm/wasm-opcodes.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 6 | #include "src/messages.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 7 | #include "src/signature.h" |
| 8 | |
| 9 | namespace v8 { |
| 10 | namespace internal { |
| 11 | namespace wasm { |
| 12 | |
| 13 | typedef Signature<LocalType> FunctionSig; |
| 14 | |
| 15 | const char* WasmOpcodes::OpcodeName(WasmOpcode opcode) { |
| 16 | switch (opcode) { |
| 17 | #define DECLARE_NAME_CASE(name, opcode, sig) \ |
| 18 | case kExpr##name: \ |
| 19 | return "Expr" #name; |
| 20 | FOREACH_OPCODE(DECLARE_NAME_CASE) |
| 21 | #undef DECLARE_NAME_CASE |
| 22 | default: |
| 23 | break; |
| 24 | } |
| 25 | return "Unknown"; |
| 26 | } |
| 27 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 28 | const char* WasmOpcodes::ShortOpcodeName(WasmOpcode opcode) { |
| 29 | switch (opcode) { |
| 30 | #define DECLARE_NAME_CASE(name, opcode, sig) \ |
| 31 | case kExpr##name: \ |
| 32 | return #name; |
| 33 | FOREACH_OPCODE(DECLARE_NAME_CASE) |
| 34 | #undef DECLARE_NAME_CASE |
| 35 | default: |
| 36 | break; |
| 37 | } |
| 38 | return "Unknown"; |
| 39 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 40 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 41 | std::ostream& operator<<(std::ostream& os, const FunctionSig& sig) { |
| 42 | if (sig.return_count() == 0) os << "v"; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 43 | for (size_t i = 0; i < sig.return_count(); ++i) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 44 | os << WasmOpcodes::ShortNameOf(sig.GetReturn(i)); |
| 45 | } |
| 46 | os << "_"; |
| 47 | if (sig.parameter_count() == 0) os << "v"; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 48 | for (size_t i = 0; i < sig.parameter_count(); ++i) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 49 | os << WasmOpcodes::ShortNameOf(sig.GetParam(i)); |
| 50 | } |
| 51 | return os; |
| 52 | } |
| 53 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 54 | #define DECLARE_SIG_ENUM(name, ...) kSigEnum_##name, |
| 55 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 56 | enum WasmOpcodeSig { FOREACH_SIGNATURE(DECLARE_SIG_ENUM) }; |
| 57 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 58 | // TODO(titzer): not static-initializer safe. Wrap in LazyInstance. |
| 59 | #define DECLARE_SIG(name, ...) \ |
| 60 | static LocalType kTypes_##name[] = {__VA_ARGS__}; \ |
| 61 | static const FunctionSig kSig_##name( \ |
| 62 | 1, static_cast<int>(arraysize(kTypes_##name)) - 1, kTypes_##name); |
| 63 | |
| 64 | FOREACH_SIGNATURE(DECLARE_SIG) |
| 65 | |
| 66 | #define DECLARE_SIG_ENTRY(name, ...) &kSig_##name, |
| 67 | |
| 68 | static const FunctionSig* kSimpleExprSigs[] = { |
| 69 | nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)}; |
| 70 | |
| 71 | static byte kSimpleExprSigTable[256]; |
| 72 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 73 | // Initialize the signature table. |
| 74 | static void InitSigTable() { |
| 75 | #define SET_SIG_TABLE(name, opcode, sig) \ |
| 76 | kSimpleExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1; |
| 77 | FOREACH_SIMPLE_OPCODE(SET_SIG_TABLE); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 78 | FOREACH_ASMJS_COMPAT_OPCODE(SET_SIG_TABLE); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 79 | #undef SET_SIG_TABLE |
| 80 | } |
| 81 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 82 | class SigTable { |
| 83 | public: |
| 84 | SigTable() { |
| 85 | // TODO(ahaas): Move {InitSigTable} into the class. |
| 86 | InitSigTable(); |
| 87 | } |
| 88 | FunctionSig* Signature(WasmOpcode opcode) const { |
| 89 | return const_cast<FunctionSig*>( |
| 90 | kSimpleExprSigs[kSimpleExprSigTable[static_cast<byte>(opcode)]]); |
| 91 | } |
| 92 | }; |
| 93 | |
| 94 | static base::LazyInstance<SigTable>::type sig_table = LAZY_INSTANCE_INITIALIZER; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 95 | |
| 96 | FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 97 | return sig_table.Get().Signature(opcode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 98 | } |
| 99 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 100 | // TODO(titzer): pull WASM_64 up to a common header. |
| 101 | #if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64 |
| 102 | #define WASM_64 1 |
| 103 | #else |
| 104 | #define WASM_64 0 |
| 105 | #endif |
| 106 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 107 | int WasmOpcodes::TrapReasonToMessageId(TrapReason reason) { |
| 108 | switch (reason) { |
| 109 | #define TRAPREASON_TO_MESSAGE(name) \ |
| 110 | case k##name: \ |
| 111 | return MessageTemplate::kWasm##name; |
| 112 | FOREACH_WASM_TRAPREASON(TRAPREASON_TO_MESSAGE) |
| 113 | #undef TRAPREASON_TO_MESSAGE |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 114 | default: |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 115 | return MessageTemplate::kNone; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 116 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | const char* WasmOpcodes::TrapReasonMessage(TrapReason reason) { |
| 120 | return MessageTemplate::TemplateString(TrapReasonToMessageId(reason)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 121 | } |
| 122 | } // namespace wasm |
| 123 | } // namespace internal |
| 124 | } // namespace v8 |