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1 // Copyright 2015 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_WASM_MODULE_H_ | 5 #ifndef V8_WASM_MODULE_H_ |
6 #define V8_WASM_MODULE_H_ | 6 #define V8_WASM_MODULE_H_ |
7 | 7 |
8 #include "src/wasm/wasm-opcodes.h" | 8 #include "src/wasm/wasm-opcodes.h" |
9 #include "src/wasm/wasm-result.h" | 9 #include "src/wasm/wasm-result.h" |
10 | 10 |
11 #include "src/api.h" | 11 #include "src/api.h" |
12 #include "src/handles.h" | 12 #include "src/handles.h" |
13 | 13 |
14 namespace v8 { | 14 namespace v8 { |
15 namespace internal { | 15 namespace internal { |
16 | 16 |
17 namespace compiler { | 17 namespace compiler { |
18 class CallDescriptor; | 18 class CallDescriptor; |
19 } | 19 } |
20 | 20 |
21 namespace wasm { | 21 namespace wasm { |
22 const size_t kMaxModuleSize = 1024 * 1024 * 1024; | 22 const size_t kMaxModuleSize = 1024 * 1024 * 1024; |
23 const size_t kMaxFunctionSize = 128 * 1024; | 23 const size_t kMaxFunctionSize = 128 * 1024; |
24 const size_t kMaxStringSize = 256; | 24 const size_t kMaxStringSize = 256; |
25 const uint32_t kWasmMagic = 0x6d736100; | 25 const uint32_t kWasmMagic = 0x6d736100; |
26 const uint32_t kWasmVersion = 0x0a; | 26 const uint32_t kWasmVersion = 0x0a; |
27 | 27 |
28 enum WasmSectionDeclCode { | 28 // WebAssembly sections are named as strings in the binary format, but |
29 kDeclMemory = 0x00, | 29 // internally V8 uses an enum to handle them. |
30 kDeclSignatures = 0x01, | 30 // |
31 kDeclFunctions = 0x02, | 31 // Entries have the form F(enumerator, string). |
32 kDeclGlobals = 0x03, | 32 #define FOR_EACH_WASM_SECTION_TYPE(F) \ |
33 kDeclDataSegments = 0x04, | 33 F(kDeclMemory, "memory") \ |
34 kDeclFunctionTable = 0x05, | 34 F(kDeclSignatures, "signatures") \ |
35 kDeclEnd = 0x06, | 35 F(kDeclFunctions, "functions") \ |
36 kDeclStartFunction = 0x07, | 36 F(kDeclGlobals, "globals") \ |
37 kDeclImportTable = 0x08, | 37 F(kDeclDataSegments, "data_segments") \ |
38 kDeclExportTable = 0x09, | 38 F(kDeclFunctionTable, "function_table") \ |
39 kDeclWLL = 0x11, | 39 F(kDeclEnd, "end") \ |
| 40 F(kDeclStartFunction, "start_function") \ |
| 41 F(kDeclImportTable, "import_table") \ |
| 42 F(kDeclExportTable, "export_table") |
| 43 |
| 44 enum WasmSectionDeclCode : uint32_t { |
| 45 #define F(enumerator, string) enumerator, |
| 46 FOR_EACH_WASM_SECTION_TYPE(F) |
| 47 #undef F |
| 48 kMaxModuleSectionCode |
40 }; | 49 }; |
41 | 50 |
42 static const int kMaxModuleSectionCode = 0x11; | |
43 | |
44 enum WasmFunctionDeclBit { | 51 enum WasmFunctionDeclBit { |
45 kDeclFunctionName = 0x01, | 52 kDeclFunctionName = 0x01, |
46 kDeclFunctionImport = 0x02, | 53 kDeclFunctionImport = 0x02, |
47 kDeclFunctionLocals = 0x04, | 54 kDeclFunctionLocals = 0x04, |
48 kDeclFunctionExport = 0x08 | 55 kDeclFunctionExport = 0x08 |
49 }; | 56 }; |
50 | 57 |
51 // Constants for fixed-size elements within a module. | 58 // Constants for fixed-size elements within a module. |
52 static const size_t kDeclMemorySize = 3; | 59 static const size_t kDeclMemorySize = 3; |
53 static const size_t kDeclGlobalSize = 6; | 60 static const size_t kDeclGlobalSize = 6; |
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249 | 256 |
250 // For testing. Decode, verify, and run the last exported function in the | 257 // For testing. Decode, verify, and run the last exported function in the |
251 // given decoded module. | 258 // given decoded module. |
252 int32_t CompileAndRunWasmModule(Isolate* isolate, WasmModule* module); | 259 int32_t CompileAndRunWasmModule(Isolate* isolate, WasmModule* module); |
253 | 260 |
254 } // namespace wasm | 261 } // namespace wasm |
255 } // namespace internal | 262 } // namespace internal |
256 } // namespace v8 | 263 } // namespace v8 |
257 | 264 |
258 #endif // V8_WASM_MODULE_H_ | 265 #endif // V8_WASM_MODULE_H_ |
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