6572b5622e
These byte pointers (module_start and module_end) were only valid during decoding. During instantiation or execution, they can get invalidated by garbage collection. This CL removes them from the WasmModule struct, and introduces a new ModuleStorage struct as interface to the wasm wire bytes. Since the storage is often needed together with the ModuleEnv, a new ModuleStorageEnv struct holds both a ModuleEnv and a ModuleStorage. The pointers in the ModuleStorage should never escape the live range of this struct, as they might point into a SeqOneByteString or ArrayBuffer. Therefore, the WasmInterpreter needs to create its own copy of the whole module. Runtime functions that previously used the raw pointers in WasmModule (leading to memory errors) now have to use the SeqOneByteString in the WasmCompiledModule. R=titzer@chromium.org BUG=chromium:669518 Review-Url: https://codereview.chromium.org/2540133002 Cr-Commit-Position: refs/heads/master@{#41388}
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_WASM_MODULE_RUNNER_H_
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#define V8_WASM_MODULE_RUNNER_H_
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#include "src/handles.h"
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#include "src/isolate.h"
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#include "src/objects.h"
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#include "src/wasm/wasm-interpreter.h"
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#include "src/wasm/wasm-module.h"
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#include "src/wasm/wasm-objects.h"
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#include "src/wasm/wasm-result.h"
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#include "src/zone/zone.h"
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namespace v8 {
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namespace internal {
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namespace wasm {
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namespace testing {
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// Decodes the given encoded module.
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const WasmModule* DecodeWasmModuleForTesting(
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Isolate* isolate, ErrorThrower* thrower, const byte* module_start,
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const byte* module_end, ModuleOrigin origin, bool verify_functions = false);
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// Instantiates a module without any imports and exports.
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const Handle<WasmInstanceObject> InstantiateModuleForTesting(
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Isolate* isolate, ErrorThrower* thrower, const WasmModule* module,
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const ModuleWireBytes& wire_bytes);
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int32_t CallWasmFunctionForTesting(Isolate* isolate, Handle<JSObject> instance,
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ErrorThrower* thrower, const char* name,
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int argc, Handle<Object> argv[],
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ModuleOrigin origin);
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// Decode, verify, and run the function labeled "main" in the
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// given encoded module. The module should have no imports.
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int32_t CompileAndRunWasmModule(Isolate* isolate, const byte* module_start,
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const byte* module_end, ModuleOrigin origin);
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// Interprets the given module, starting at the function specified by
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// {function_index}. The return type of the function has to be int32. The module
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// should not have any imports or exports
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int32_t InterpretWasmModule(Isolate* isolate, ErrorThrower* thrower,
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const WasmModule* module,
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const ModuleWireBytes& wire_bytes,
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int function_index, WasmVal* args,
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bool* may_produced_nan);
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// Compiles WasmModule bytes and return an instance of the compiled module.
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const Handle<WasmInstanceObject> CompileInstantiateWasmModuleForTesting(
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Isolate* isolate, ErrorThrower* thrower, const byte* module_start,
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const byte* module_end, ModuleOrigin origin);
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// Runs the module instance with arguments.
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int32_t RunWasmModuleForTesting(Isolate* isolate, Handle<JSObject> instance,
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int argc, Handle<Object> argv[],
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ModuleOrigin origin);
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// Install function map, module symbol for testing
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void SetupIsolateForWasmModule(Isolate* isolate);
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} // namespace testing
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} // namespace wasm
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} // namespace internal
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} // namespace v8
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#endif // V8_WASM_MODULE_RUNNER_H_
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