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Side by Side Diff: src/wasm/wasm-module.h

Issue 2360983002: Enable component builds for fuzzers (Closed)
Patch Set: Rebase Created 4 years, 2 months ago
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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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72 #define WASM_SECTION_END_SIZE ((size_t)4) 72 #define WASM_SECTION_END_SIZE ((size_t)4)
73 #define WASM_SECTION_START_FUNCTION_SIZE ((size_t)6) 73 #define WASM_SECTION_START_FUNCTION_SIZE ((size_t)6)
74 #define WASM_SECTION_IMPORT_TABLE_SIZE ((size_t)7) 74 #define WASM_SECTION_IMPORT_TABLE_SIZE ((size_t)7)
75 #define WASM_SECTION_EXPORT_TABLE_SIZE ((size_t)7) 75 #define WASM_SECTION_EXPORT_TABLE_SIZE ((size_t)7)
76 #define WASM_SECTION_FUNCTION_SIGNATURES_SIZE ((size_t)9) 76 #define WASM_SECTION_FUNCTION_SIGNATURES_SIZE ((size_t)9)
77 #define WASM_SECTION_FUNCTION_BODIES_SIZE ((size_t)5) 77 #define WASM_SECTION_FUNCTION_BODIES_SIZE ((size_t)5)
78 #define WASM_SECTION_NAMES_SIZE ((size_t)5) 78 #define WASM_SECTION_NAMES_SIZE ((size_t)5)
79 79
80 class WasmDebugInfo; 80 class WasmDebugInfo;
81 81
82 struct WasmSection { 82 struct V8_EXPORT_PRIVATE WasmSection {
83 enum class Code : uint32_t { 83 enum class Code : uint32_t {
84 #define F(enumerator, order, string) enumerator, 84 #define F(enumerator, order, string) enumerator,
85 FOR_EACH_WASM_SECTION_TYPE(F) 85 FOR_EACH_WASM_SECTION_TYPE(F)
86 #undef F 86 #undef F
87 Max 87 Max
88 }; 88 };
89 static WasmSection::Code begin(); 89 static WasmSection::Code begin();
90 static WasmSection::Code end(); 90 static WasmSection::Code end();
91 static WasmSection::Code next(WasmSection::Code code); 91 static WasmSection::Code next(WasmSection::Code code);
92 static const char* getName(Code code); 92 static const char* getName(Code code);
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226 return GetNameOrNull(function->name_offset, function->name_length); 226 return GetNameOrNull(function->name_offset, function->name_length);
227 } 227 }
228 228
229 // Checks the given offset range is contained within the module bytes. 229 // Checks the given offset range is contained within the module bytes.
230 bool BoundsCheck(uint32_t start, uint32_t end) const { 230 bool BoundsCheck(uint32_t start, uint32_t end) const {
231 size_t size = module_end - module_start; 231 size_t size = module_end - module_start;
232 return start <= size && end <= size; 232 return start <= size && end <= size;
233 } 233 }
234 234
235 // Creates a new instantiation of the module in the given isolate. 235 // Creates a new instantiation of the module in the given isolate.
236 static MaybeHandle<JSObject> Instantiate(Isolate* isolate, 236 V8_EXPORT_PRIVATE static MaybeHandle<JSObject> Instantiate(
237 Handle<JSObject> module_object, 237 Isolate* isolate, Handle<JSObject> module_object, Handle<JSReceiver> ffi,
238 Handle<JSReceiver> ffi, 238 Handle<JSArrayBuffer> memory);
239 Handle<JSArrayBuffer> memory);
240 239
241 MaybeHandle<FixedArray> CompileFunctions(Isolate* isolate, 240 MaybeHandle<FixedArray> CompileFunctions(Isolate* isolate,
242 ErrorThrower* thrower) const; 241 ErrorThrower* thrower) const;
243 242
244 private: 243 private:
245 DISALLOW_COPY_AND_ASSIGN(WasmModule); 244 DISALLOW_COPY_AND_ASSIGN(WasmModule);
246 }; 245 };
247 246
248 // An instantiated WASM module, including memory, function table, etc. 247 // An instantiated WASM module, including memory, function table, etc.
249 struct WasmModuleInstance { 248 struct WasmModuleInstance {
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395 394
396 // Populates a function table by replacing function indices with handles to 395 // Populates a function table by replacing function indices with handles to
397 // the compiled code. 396 // the compiled code.
398 void PopulateFunctionTable(Handle<FixedArray> table, uint32_t table_size, 397 void PopulateFunctionTable(Handle<FixedArray> table, uint32_t table_size,
399 const std::vector<Handle<Code>>* code_table); 398 const std::vector<Handle<Code>>* code_table);
400 399
401 Handle<JSObject> CreateCompiledModuleObject(Isolate* isolate, 400 Handle<JSObject> CreateCompiledModuleObject(Isolate* isolate,
402 Handle<FixedArray> compiled_module, 401 Handle<FixedArray> compiled_module,
403 ModuleOrigin origin); 402 ModuleOrigin origin);
404 403
405 MaybeHandle<JSObject> CreateModuleObjectFromBytes(Isolate* isolate, 404 V8_EXPORT_PRIVATE MaybeHandle<JSObject> CreateModuleObjectFromBytes(
406 const byte* start, 405 Isolate* isolate, const byte* start, const byte* end, ErrorThrower* thrower,
407 const byte* end, 406 ModuleOrigin origin);
408 ErrorThrower* thrower,
409 ModuleOrigin origin);
410 407
411 // Assumed to be called with a code object associated to a wasm module instance. 408 // Assumed to be called with a code object associated to a wasm module instance.
412 // Intended to be called from runtime functions. 409 // Intended to be called from runtime functions.
413 // Returns undefined if the runtime support was not setup, nullptr if the 410 // Returns undefined if the runtime support was not setup, nullptr if the
414 // instance 411 // instance
415 // was collected, or the instance object owning the Code object 412 // was collected, or the instance object owning the Code object
416 Object* GetOwningWasmInstance(Object* undefined, Code* code); 413 Object* GetOwningWasmInstance(Object* undefined, Code* code);
417 414
418 MaybeHandle<JSArrayBuffer> GetInstanceMemory(Isolate* isolate, 415 MaybeHandle<JSArrayBuffer> GetInstanceMemory(Isolate* isolate,
419 Handle<JSObject> instance); 416 Handle<JSObject> instance);
420 void SetInstanceMemory(Handle<JSObject> instance, JSArrayBuffer* buffer); 417 void SetInstanceMemory(Handle<JSObject> instance, JSArrayBuffer* buffer);
421 418
422 namespace testing { 419 namespace testing {
423 420
424 void ValidateInstancesChain(Isolate* isolate, Handle<JSObject> module_obj, 421 void ValidateInstancesChain(Isolate* isolate, Handle<JSObject> module_obj,
425 int instance_count); 422 int instance_count);
426 void ValidateModuleState(Isolate* isolate, Handle<JSObject> module_obj); 423 void ValidateModuleState(Isolate* isolate, Handle<JSObject> module_obj);
427 void ValidateOrphanedInstance(Isolate* isolate, Handle<JSObject> instance); 424 void ValidateOrphanedInstance(Isolate* isolate, Handle<JSObject> instance);
428 425
429 } // namespace testing 426 } // namespace testing
430 } // namespace wasm 427 } // namespace wasm
431 } // namespace internal 428 } // namespace internal
432 } // namespace v8 429 } // namespace v8
433 430
434 #endif // V8_WASM_MODULE_H_ 431 #endif // V8_WASM_MODULE_H_
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