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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 <memory> | 8 #include <memory> |
9 | 9 |
10 #include "src/api.h" | 10 #include "src/api.h" |
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79 kF64Const | 79 kF64Const |
80 } kind; | 80 } kind; |
81 | 81 |
82 union { | 82 union { |
83 int32_t i32_const; | 83 int32_t i32_const; |
84 int64_t i64_const; | 84 int64_t i64_const; |
85 float f32_const; | 85 float f32_const; |
86 double f64_const; | 86 double f64_const; |
87 uint32_t global_index; | 87 uint32_t global_index; |
88 } val; | 88 } val; |
| 89 }; |
89 | 90 |
90 WasmInitExpr() : kind(kNone) {} | 91 #define NO_INIT \ |
91 explicit WasmInitExpr(int32_t v) : kind(kI32Const) { val.i32_const = v; } | 92 { \ |
92 explicit WasmInitExpr(int64_t v) : kind(kI64Const) { val.i64_const = v; } | 93 WasmInitExpr::kNone, { 0u } \ |
93 explicit WasmInitExpr(float v) : kind(kF32Const) { val.f32_const = v; } | |
94 explicit WasmInitExpr(double v) : kind(kF64Const) { val.f64_const = v; } | |
95 WasmInitExpr(WasmInitKind kind, uint32_t global_index) : kind(kGlobalIndex) { | |
96 val.global_index = global_index; | |
97 } | 94 } |
98 }; | |
99 | 95 |
100 // Static representation of a WASM function. | 96 // Static representation of a WASM function. |
101 struct WasmFunction { | 97 struct WasmFunction { |
102 FunctionSig* sig; // signature of the function. | 98 FunctionSig* sig; // signature of the function. |
103 uint32_t func_index; // index into the function table. | 99 uint32_t func_index; // index into the function table. |
104 uint32_t sig_index; // index into the signature table. | 100 uint32_t sig_index; // index into the signature table. |
105 uint32_t name_offset; // offset in the module bytes of the name, if any. | 101 uint32_t name_offset; // offset in the module bytes of the name, if any. |
106 uint32_t name_length; // length in bytes of the name. | 102 uint32_t name_length; // length in bytes of the name. |
107 uint32_t code_start_offset; // offset in the module bytes of code start. | 103 uint32_t code_start_offset; // offset in the module bytes of code start. |
108 uint32_t code_end_offset; // offset in the module bytes of code end. | 104 uint32_t code_end_offset; // offset in the module bytes of code end. |
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381 | 377 |
382 #define WCM_WEAK_LINK(TYPE, NAME) \ | 378 #define WCM_WEAK_LINK(TYPE, NAME) \ |
383 WCM_OBJECT_OR_WEAK(WeakCell, weak_##NAME, kID_##NAME); \ | 379 WCM_OBJECT_OR_WEAK(WeakCell, weak_##NAME, kID_##NAME); \ |
384 \ | 380 \ |
385 Handle<TYPE> NAME() const { \ | 381 Handle<TYPE> NAME() const { \ |
386 return handle(TYPE::cast(weak_##NAME()->value())); \ | 382 return handle(TYPE::cast(weak_##NAME()->value())); \ |
387 } | 383 } |
388 | 384 |
389 #define CORE_WCM_PROPERTY_TABLE(MACRO) \ | 385 #define CORE_WCM_PROPERTY_TABLE(MACRO) \ |
390 MACRO(OBJECT, FixedArray, code_table) \ | 386 MACRO(OBJECT, FixedArray, code_table) \ |
391 MACRO(OBJECT, FixedArray, imports) \ | 387 MACRO(OBJECT, FixedArray, import_data) \ |
392 MACRO(OBJECT, FixedArray, exports) \ | 388 MACRO(OBJECT, FixedArray, exports) \ |
393 MACRO(OBJECT, FixedArray, inits) \ | |
394 MACRO(OBJECT, FixedArray, startup_function) \ | 389 MACRO(OBJECT, FixedArray, startup_function) \ |
395 MACRO(OBJECT, FixedArray, indirect_function_tables) \ | 390 MACRO(OBJECT, FixedArray, indirect_function_tables) \ |
396 MACRO(OBJECT, String, module_bytes) \ | 391 MACRO(OBJECT, String, module_bytes) \ |
397 MACRO(OBJECT, ByteArray, function_names) \ | 392 MACRO(OBJECT, ByteArray, function_names) \ |
398 MACRO(SMALL_NUMBER, uint32_t, min_memory_pages) \ | 393 MACRO(SMALL_NUMBER, uint32_t, min_memory_pages) \ |
399 MACRO(OBJECT, FixedArray, data_segments_info) \ | 394 MACRO(OBJECT, FixedArray, data_segments_info) \ |
400 MACRO(OBJECT, ByteArray, data_segments) \ | 395 MACRO(OBJECT, ByteArray, data_segments) \ |
401 MACRO(SMALL_NUMBER, uint32_t, globals_size) \ | 396 MACRO(SMALL_NUMBER, uint32_t, globals_size) \ |
402 MACRO(OBJECT, JSArrayBuffer, heap) \ | 397 MACRO(OBJECT, JSArrayBuffer, heap) \ |
| 398 MACRO(SMALL_NUMBER, bool, export_memory) \ |
403 MACRO(SMALL_NUMBER, ModuleOrigin, origin) \ | 399 MACRO(SMALL_NUMBER, ModuleOrigin, origin) \ |
404 MACRO(WEAK_LINK, WasmCompiledModule, next_instance) \ | 400 MACRO(WEAK_LINK, WasmCompiledModule, next_instance) \ |
405 MACRO(WEAK_LINK, WasmCompiledModule, prev_instance) \ | 401 MACRO(WEAK_LINK, WasmCompiledModule, prev_instance) \ |
406 MACRO(WEAK_LINK, JSObject, owning_instance) \ | 402 MACRO(WEAK_LINK, JSObject, owning_instance) \ |
407 MACRO(WEAK_LINK, JSObject, module_object) | 403 MACRO(WEAK_LINK, JSObject, module_object) |
408 | 404 |
409 #if DEBUG | 405 #if DEBUG |
410 #define DEBUG_ONLY_TABLE(MACRO) MACRO(SMALL_NUMBER, uint32_t, instance_id) | 406 #define DEBUG_ONLY_TABLE(MACRO) MACRO(SMALL_NUMBER, uint32_t, instance_id) |
411 #else | 407 #else |
412 #define DEBUG_ONLY_TABLE(IGNORE) | 408 #define DEBUG_ONLY_TABLE(IGNORE) |
413 uint32_t instance_id() const { return -1; } | 409 uint32_t instance_id() const { return -1; } |
414 #endif | 410 #endif |
415 | 411 |
416 #define WCM_PROPERTY_TABLE(MACRO) \ | 412 #define WCM_PROPERTY_TABLE(MACRO) \ |
417 CORE_WCM_PROPERTY_TABLE(MACRO) \ | 413 CORE_WCM_PROPERTY_TABLE(MACRO) \ |
418 DEBUG_ONLY_TABLE(MACRO) | 414 DEBUG_ONLY_TABLE(MACRO) |
419 | 415 |
420 private: | 416 private: |
421 enum PropertyIndices { | 417 enum PropertyIndices { |
422 #define INDICES(IGNORE1, IGNORE2, NAME) kID_##NAME, | 418 #define INDICES(IGNORE1, IGNORE2, NAME) kID_##NAME, |
423 WCM_PROPERTY_TABLE(INDICES) Count | 419 WCM_PROPERTY_TABLE(INDICES) Count |
424 #undef INDICES | 420 #undef INDICES |
425 }; | 421 }; |
426 | 422 |
427 public: | 423 public: |
428 static Handle<WasmCompiledModule> New(Isolate* isolate, | 424 static Handle<WasmCompiledModule> New(Isolate* isolate, |
429 uint32_t min_memory_pages, | 425 uint32_t min_memory_pages, |
430 uint32_t globals_size, | 426 uint32_t globals_size, |
| 427 bool export_memory, |
431 ModuleOrigin origin); | 428 ModuleOrigin origin); |
432 | 429 |
433 static Handle<WasmCompiledModule> Clone(Isolate* isolate, | 430 static Handle<WasmCompiledModule> Clone(Isolate* isolate, |
434 Handle<WasmCompiledModule> module) { | 431 Handle<WasmCompiledModule> module) { |
435 Handle<WasmCompiledModule> ret = Handle<WasmCompiledModule>::cast( | 432 Handle<WasmCompiledModule> ret = Handle<WasmCompiledModule>::cast( |
436 isolate->factory()->CopyFixedArray(module)); | 433 isolate->factory()->CopyFixedArray(module)); |
437 ret->Init(); | 434 ret->Init(); |
438 ret->reset_weak_owning_instance(); | 435 ret->reset_weak_owning_instance(); |
439 ret->reset_weak_next_instance(); | 436 ret->reset_weak_next_instance(); |
440 ret->reset_weak_prev_instance(); | 437 ret->reset_weak_prev_instance(); |
441 return ret; | 438 return ret; |
442 } | 439 } |
443 | 440 |
444 uint32_t mem_size() const { | 441 uint32_t mem_size() const { |
445 DCHECK(has_heap()); | 442 DCHECK(has_heap()); |
446 return heap()->byte_length()->Number(); | 443 return heap()->byte_length()->Number(); |
447 } | 444 } |
448 | 445 |
449 uint32_t default_mem_size() const { | 446 uint32_t default_mem_size() const { |
450 return min_memory_pages() * WasmModule::kPageSize; | 447 return min_memory_pages() * WasmModule::kPageSize; |
451 } | 448 } |
452 | 449 |
453 #define DECLARATION(KIND, TYPE, NAME) WCM_##KIND(TYPE, NAME) | 450 #define DECLARATION(KIND, TYPE, NAME) WCM_##KIND(TYPE, NAME) |
454 WCM_PROPERTY_TABLE(DECLARATION) | 451 WCM_PROPERTY_TABLE(DECLARATION) |
455 #undef DECLARATION | 452 #undef DECLARATION |
456 | 453 |
457 void PrintInstancesChain(); | 454 void PrintInstancesChain(); |
458 | 455 |
459 private: | 456 private: |
| 457 #if DEBUG |
| 458 static uint32_t instance_id_counter_; |
| 459 #endif |
460 void Init(); | 460 void Init(); |
461 | 461 |
462 DISALLOW_IMPLICIT_CONSTRUCTORS(WasmCompiledModule); | 462 DISALLOW_IMPLICIT_CONSTRUCTORS(WasmCompiledModule); |
463 }; | 463 }; |
464 | 464 |
465 // Extract a function name from the given wasm object. | 465 // Extract a function name from the given wasm object. |
466 // Returns "<WASM UNNAMED>" if the function is unnamed or the name is not a | 466 // Returns "<WASM UNNAMED>" if the function is unnamed or the name is not a |
467 // valid UTF-8 string. | 467 // valid UTF-8 string. |
468 Handle<String> GetWasmFunctionName(Isolate* isolate, Handle<Object> wasm, | 468 Handle<String> GetWasmFunctionName(Isolate* isolate, Handle<Object> wasm, |
469 uint32_t func_index); | 469 uint32_t func_index); |
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545 int instance_count); | 545 int instance_count); |
546 void ValidateModuleState(Isolate* isolate, Handle<JSObject> module_obj); | 546 void ValidateModuleState(Isolate* isolate, Handle<JSObject> module_obj); |
547 void ValidateOrphanedInstance(Isolate* isolate, Handle<JSObject> instance); | 547 void ValidateOrphanedInstance(Isolate* isolate, Handle<JSObject> instance); |
548 | 548 |
549 } // namespace testing | 549 } // namespace testing |
550 } // namespace wasm | 550 } // namespace wasm |
551 } // namespace internal | 551 } // namespace internal |
552 } // namespace v8 | 552 } // namespace v8 |
553 | 553 |
554 #endif // V8_WASM_MODULE_H_ | 554 #endif // V8_WASM_MODULE_H_ |
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