fdcaa3d452
When using correctness fuzzing, this makes sure all non-object arguments to typed array constructors are bound by 1MiB when interpreted as numbers. NOTRY=true Bug: chromium:910962 Change-Id: I66e87ece27aae7c5fa88429c5d1f1f478de702ae Reviewed-on: https://chromium-review.googlesource.com/c/1369959 Commit-Queue: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Mathias Bynens <mathias@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#58144}
66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
// Copyright 2017 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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// This is intended for permanent JS behavior changes for mocking out
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// non-deterministic behavior. For temporary suppressions, please refer to
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// v8_suppressions.js.
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// This mocks only architecture specific differences. Refer to v8_mocks.js
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// for the general case.
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// This file is loaded before each correctness test cases and won't get
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// minimized.
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// Mock maximum typed-array length and limit to 1MiB.
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(function () {
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var mock = function(arrayType) {
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var handler = {
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construct: function(target, args) {
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for (let i = 0; i < args.length; i++) {
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if (typeof args[i] != "object") {
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args[i] = Math.min(1048576, args[i]);
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}
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}
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return new (
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Function.prototype.bind.apply(arrayType, [null].concat(args)));
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},
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};
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return new Proxy(arrayType, handler);
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}
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ArrayBuffer = mock(ArrayBuffer);
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Int8Array = mock(Int8Array);
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Uint8Array = mock(Uint8Array);
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Uint8ClampedArray = mock(Uint8ClampedArray);
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Int16Array = mock(Int16Array);
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Uint16Array = mock(Uint16Array);
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Int32Array = mock(Int32Array);
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Uint32Array = mock(Uint32Array);
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BigInt64Array = mock(BigInt64Array);
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BigUint64Array = mock(BigUint64Array);
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Float32Array = mock(Float32Array);
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Float64Array = mock(Float64Array);
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})();
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// Mock typed array set function and limit maximum offset to 1MiB.
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(function () {
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var typedArrayTypes = [
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Int8Array,
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Uint8Array,
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Uint8ClampedArray,
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Int16Array,
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Uint16Array,
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Int32Array,
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Uint32Array,
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BigInt64Array,
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BigUint64Array,
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Float32Array,
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Float64Array,
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];
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for (let typedArrayType of typedArrayTypes) {
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let set = typedArrayType.prototype.set
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typedArrayType.prototype.set = function(array, offset) {
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set.apply(this, [array, offset > 1048576 ? 1048576 : offset])
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};
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}
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})();
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