a345a442d3
- Add d8.file.read() and d8.file.execute() helpers - Change tools and tests to use new d8.file helper - Unify error throwing in v8::Shell::ReadFile Change-Id: I5ef4cb27f217508a367106f01e872a4059d5e399 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2928505 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#74883}
97 lines
3.3 KiB
JavaScript
97 lines
3.3 KiB
JavaScript
// Copyright 2018 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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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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const k1MiB = 1 * 1024 * 1024;
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const k1GiB = 1 * 1024 * 1024 * 1024;
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const k2GiB = 2 * k1GiB;
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const k3GiB = 3 * k1GiB;
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const k4GiB = 4 * k1GiB;
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const kMaxMemory = k4GiB;
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// Indexes (and offsets) used to systematically probe the memory.
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const indexes = (() => {
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const a = k1GiB, b = k2GiB, c = k3GiB, d = k4GiB;
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return [
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0, 1, 2, 3, 4, 5, 7, 8, 9, // near 0
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a-8, a-4, a+0, a+1, a+2, a+3, a+4, a+5, a+7, a+8, a+9, // near 1GiB
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b-8, b-4, b+0, b+1, b+2, b+3, b+4, b+5, b+7, b+8, b+9, // near 2GiB
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c-8, c-4, c+0, c+1, c+2, c+3, c+4, c+5, c+7, c+8, c+9, // near 3GiB
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d-9, d-8, d-7, d-5, d-4, d-3, d-2, d-1 // near 4GiB
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];
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})();
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(function Test() {
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var memory;
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function BuildAccessors(type, load_opcode, store_opcode, offset) {
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builder = new WasmModuleBuilder();
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builder.addImportedMemory("i", "mem");
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const h = 0x80;
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const m = 0x7f;
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let offset_bytes = [h|((offset >>> 0) & m), // LEB encoding of offset
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h|((offset >>> 7) & m),
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h|((offset >>> 14) & m),
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h|((offset >>> 21) & m),
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0|((offset >>> 28) & m)];
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builder.addFunction("load", makeSig([kWasmI32], [type]))
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.addBody([ // --
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kExprLocalGet, 0, // --
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load_opcode, 0, ...offset_bytes, // --
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]) // --
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.exportFunc();
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builder.addFunction("store", makeSig([kWasmI32, type], []))
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.addBody([ // --
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kExprLocalGet, 0, // --
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kExprLocalGet, 1, // --
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store_opcode, 0, ...offset_bytes, // --
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]) // --
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.exportFunc();
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let i = builder.instantiate({i: {mem: memory}});
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return {offset: offset, load: i.exports.load, store: i.exports.store};
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}
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function probe(a, size, offset, f) {
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print(`size=${size} offset=${offset}`);
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for (let i of indexes) {
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let oob = (i + size + offset) > kMaxMemory;
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if (oob) {
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// print(` ${i} + ${offset} OOB`);
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assertThrows(() => a.store(i, f(i)));
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assertThrows(() => a.load(i));
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} else {
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// print(` ${i} = ${f(i)}`);
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a.store(i, f(i));
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assertEquals(f(i), a.load(i));
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}
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}
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}
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try {
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let kPages = kMaxMemory / kPageSize;
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memory = new WebAssembly.Memory({initial: kPages, maximum: kPages});
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} catch (e) {
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print("OOM: sorry, best effort max memory size test.");
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return;
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}
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assertEquals(kMaxMemory, memory.buffer.byteLength);
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for (let offset of indexes) {
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let a = BuildAccessors(kWasmI32, kExprI32LoadMem, kExprI32StoreMem, offset);
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probe(a, 4, offset, i => (0xaabbccee ^ ((i >> 11) * 0x110005)) | 0);
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}
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for (let offset of indexes) {
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let a = BuildAccessors(kWasmI32, kExprI32LoadMem8U, kExprI32StoreMem8, offset);
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probe(a, 1, offset, i => (0xee ^ ((i >> 11) * 0x05)) & 0xFF);
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}
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for (let offset of indexes) {
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let a = BuildAccessors(kWasmF64, kExprF64LoadMem, kExprF64StoreMem, offset);
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probe(a, 8, offset, i => 0xaabbccee ^ ((i >> 11) * 0x110005));
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}
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})();
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