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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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| 361 // Returns "<WASM UNNAMED>" if no instance is passed, the function is unnamed or | 361 // Returns "<WASM UNNAMED>" if no instance is passed, the function is unnamed or |
| 362 // the name is not a valid UTF-8 string. | 362 // the name is not a valid UTF-8 string. |
| 363 // TODO(5620): Refactor once we always get a wasm instance. | 363 // TODO(5620): Refactor once we always get a wasm instance. |
| 364 Handle<String> GetWasmFunctionName(Isolate* isolate, Handle<Object> instance, | 364 Handle<String> GetWasmFunctionName(Isolate* isolate, Handle<Object> instance, |
| 365 uint32_t func_index); | 365 uint32_t func_index); |
| 366 | 366 |
| 367 // Get the debug info associated with the given wasm object. | 367 // Get the debug info associated with the given wasm object. |
| 368 // If no debug info exists yet, it is created automatically. | 368 // If no debug info exists yet, it is created automatically. |
| 369 Handle<WasmDebugInfo> GetDebugInfo(Handle<JSObject> wasm); | 369 Handle<WasmDebugInfo> GetDebugInfo(Handle<JSObject> wasm); |
| 370 | 370 |
| 371 // Return the number of functions in the given wasm object. | |
| 372 int GetNumberOfFunctions(Handle<JSObject> wasm); | |
| 373 | |
| 374 // Check whether the given object represents a WebAssembly.Instance instance. | 371 // Check whether the given object represents a WebAssembly.Instance instance. |
| 375 // This checks the number and type of internal fields, so it's not 100 percent | 372 // This checks the number and type of internal fields, so it's not 100 percent |
| 376 // secure. If it turns out that we need more complete checks, we could add a | 373 // secure. If it turns out that we need more complete checks, we could add a |
| 377 // special marker as internal field, which will definitely never occur anywhere | 374 // special marker as internal field, which will definitely never occur anywhere |
| 378 // else. | 375 // else. |
| 379 bool IsWasmInstance(Object* instance); | 376 bool IsWasmInstance(Object* instance); |
| 380 | 377 |
| 381 // Check whether the wasm module was generated from asm.js code. | 378 // Check whether the wasm module was generated from asm.js code. |
| 382 bool WasmIsAsmJs(Object* instance, Isolate* isolate); | 379 bool WasmIsAsmJs(Object* instance, Isolate* isolate); |
| 383 | 380 |
| 384 // Get the script of the wasm module. If the origin of the module is asm.js, the | 381 // Get the script of the wasm module. If the origin of the module is asm.js, the |
| 385 // returned Script will be a JavaScript Script of Script::TYPE_NORMAL, otherwise | 382 // returned Script will be a JavaScript Script of Script::TYPE_NORMAL, otherwise |
| 386 // it's of type TYPE_WASM. | 383 // it's of type TYPE_WASM. |
| 387 Handle<Script> GetScript(Handle<JSObject> instance); | 384 Handle<Script> GetScript(Handle<JSObject> instance); |
| 388 | 385 |
| 389 // Compute the disassembly of a wasm function. | 386 // Compute the disassembly of a wasm function. |
| 390 // Returns the disassembly string and a list of <byte_offset, line, column> | 387 // Returns the disassembly string and a list of <byte_offset, line, column> |
| 391 // entries, mapping wasm byte offsets to line and column in the disassembly. | 388 // entries, mapping wasm byte offsets to line and column in the disassembly. |
| 392 // The list is guaranteed to be ordered by the byte_offset. | 389 // The list is guaranteed to be ordered by the byte_offset. |
| 393 // Returns an empty string and empty vector if the function index is invalid. | 390 // Returns an empty string and empty vector if the function index is invalid. |
| 394 std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>> | 391 std::pair<std::string, std::vector<std::tuple<uint32_t, int, int>>> |
| 395 DisassembleFunction(Handle<WasmCompiledModule> compiled_module, int func_index); | 392 DisassembleFunction(Handle<WasmCompiledModule> compiled_module, int func_index); |
| 396 | 393 |
| 397 // Get the asm.js source position for the given byte offset in the given | |
| 398 // function. | |
| 399 int GetAsmWasmSourcePosition(Handle<JSObject> instance, int func_index, | |
| 400 int byte_offset); | |
| 401 | |
| 402 V8_EXPORT_PRIVATE MaybeHandle<WasmModuleObject> CreateModuleObjectFromBytes( | 394 V8_EXPORT_PRIVATE MaybeHandle<WasmModuleObject> CreateModuleObjectFromBytes( |
| 403 Isolate* isolate, const byte* start, const byte* end, ErrorThrower* thrower, | 395 Isolate* isolate, const byte* start, const byte* end, ErrorThrower* thrower, |
| 404 ModuleOrigin origin, Handle<Script> asm_js_script, | 396 ModuleOrigin origin, Handle<Script> asm_js_script, |
| 405 const byte* asm_offset_tables_start, const byte* asm_offset_tables_end); | 397 const byte* asm_offset_tables_start, const byte* asm_offset_tables_end); |
| 406 | 398 |
| 407 V8_EXPORT_PRIVATE bool ValidateModuleBytes(Isolate* isolate, const byte* start, | 399 V8_EXPORT_PRIVATE bool ValidateModuleBytes(Isolate* isolate, const byte* start, |
| 408 const byte* end, | 400 const byte* end, |
| 409 ErrorThrower* thrower, | 401 ErrorThrower* thrower, |
| 410 ModuleOrigin origin); | 402 ModuleOrigin origin); |
| 411 | 403 |
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| 447 void ValidateModuleState(Isolate* isolate, Handle<WasmModuleObject> module_obj); | 439 void ValidateModuleState(Isolate* isolate, Handle<WasmModuleObject> module_obj); |
| 448 void ValidateOrphanedInstance(Isolate* isolate, | 440 void ValidateOrphanedInstance(Isolate* isolate, |
| 449 Handle<WasmInstanceObject> instance); | 441 Handle<WasmInstanceObject> instance); |
| 450 | 442 |
| 451 } // namespace testing | 443 } // namespace testing |
| 452 } // namespace wasm | 444 } // namespace wasm |
| 453 } // namespace internal | 445 } // namespace internal |
| 454 } // namespace v8 | 446 } // namespace v8 |
| 455 | 447 |
| 456 #endif // V8_WASM_MODULE_H_ | 448 #endif // V8_WASM_MODULE_H_ |
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