d0b8e7fb54
Add a flag to gate experimental support for dynamic code loading and JITing (at runtime in a wasm module). Enhancing functionality of the indirect function table to support JITing and dynamic linking by allowing additional space to be filled with an "undefined" function signature. BUG=v8:5044 LOG=N TEST=None R=mtrofin@chromium.org,bradnelson@chromium.org Review-Url: https://codereview.chromium.org/2049513003 Cr-Commit-Position: refs/heads/master@{#37159}
57 lines
1.8 KiB
JavaScript
57 lines
1.8 KiB
JavaScript
// Copyright 2015 the V8 project authors. All rights reserved.
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//
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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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// Flags: --expose-wasm
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// Flags: --wasm-jit-prototype
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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var module = (function () {
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var builder = new WasmModuleBuilder();
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var sig_index = builder.addType(kSig_i_ii);
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builder.addPadFunctionTable(512);
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builder.addImport("add", sig_index);
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builder.addFunction("add", sig_index)
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.addBody([
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kExprGetLocal, 0, kExprGetLocal, 1, kExprCallImport, kArity2, 0
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]);
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builder.addFunction("sub", sig_index)
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.addBody([
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kExprGetLocal, 0, // --
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kExprGetLocal, 1, // --
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kExprI32Sub, // --
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]);
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builder.addFunction("main", kSig_i_iii)
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.addBody([
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kExprGetLocal, 0,
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kExprGetLocal, 1,
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kExprGetLocal, 2,
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kExprCallIndirect, kArity2, sig_index
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])
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.exportFunc()
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builder.appendToTable([0, 1, 2]);
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return builder.instantiate({add: function(a, b) { return a + b | 0; }});
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})();
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// Check the module exists.
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assertFalse(module === undefined);
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assertFalse(module === null);
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assertFalse(module === 0);
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assertEquals("object", typeof module.exports);
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assertEquals("function", typeof module.exports.main);
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assertEquals(5, module.exports.main(1, 12, 7));
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assertEquals(19, module.exports.main(0, 12, 7));
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assertTraps(kTrapFuncSigMismatch, "module.exports.main(2, 12, 33)");
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assertTraps(kTrapFuncSigMismatch, "module.exports.main(4, 12, 33)");
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assertTraps(kTrapFuncSigMismatch, "module.exports.main(511, 12, 33)");
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assertTraps(kTrapFuncInvalid, "module.exports.main(512, 12, 33)");
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assertTraps(kTrapFuncInvalid, "module.exports.main(1025, 12, 33)");
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assertTraps(kTrapFuncInvalid, "module.exports.main(-1, 12, 33)");
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