452b7f2483
R=titzer@chromium.org, yangguo@chromium.org Review-Url: https://codereview.chromium.org/1961453002 Cr-Commit-Position: refs/heads/master@{#36354}
128 lines
4.1 KiB
JavaScript
128 lines
4.1 KiB
JavaScript
// 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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// clang-format off
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// Flags: --expose-wasm
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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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// The stack trace contains file path, only keep "stack.js".
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function stripPath(s) {
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return s.replace(/[^ (]*stack\.js/g, "stack.js");
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}
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function verifyStack(frames, expected) {
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assertEquals(expected.length, frames.length, "number of frames mismatch");
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expected.forEach(function(exp, i) {
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assertEquals(exp[1], frames[i].getFunctionName(),
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"["+i+"].getFunctionName()");
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assertEquals(exp[2], frames[i].getLineNumber(), "["+i+"].getLineNumber()");
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if (exp[0])
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assertEquals(exp[3], frames[i].getPosition(),
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"["+i+"].getPosition()");
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assertContains(exp[4], frames[i].getFileName(), "["+i+"].getFileName()");
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var toString;
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if (exp[0]) {
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toString = exp[1] + " (<WASM>[" + exp[2] + "]+" + exp[3] + ")";
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} else {
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toString = exp[4] + ":" + exp[2] + ":";
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}
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assertContains(toString, frames[i].toString(), "["+i+"].toString()");
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});
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}
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var stack;
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function STACK() {
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var e = new Error();
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stack = e.stack;
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}
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var builder = new WasmModuleBuilder();
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builder.addImport("func", kSig_v_v);
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builder.addFunction("main", kSig_v_v)
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.addBody([kExprCallImport, kArity0, 0])
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.exportAs("main");
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builder.addFunction("exec_unreachable", kSig_v_v)
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.addBody([kExprUnreachable])
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.exportAs("exec_unreachable");
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// Make this function unnamed, just to test also this case.
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var mem_oob_func = builder.addFunction(undefined, kSig_v_v)
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// Access the memory at offset -1, to provoke a trap.
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.addBody([kExprI32Const, 0x7f, kExprI32LoadMem8S, 0, 0])
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.exportAs("mem_out_of_bounds");
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// Call the mem_out_of_bounds function, in order to have two WASM stack frames.
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builder.addFunction("call_mem_out_of_bounds", kSig_v_v)
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.addBody([kExprCallFunction, kArity0, mem_oob_func.index])
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.exportAs("call_mem_out_of_bounds");
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var module = builder.instantiate({func: STACK});
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(function testSimpleStack() {
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var expected_string = "Error\n" +
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// The line numbers below will change as this test gains / loses lines..
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" at STACK (stack.js:39:11)\n" + // --
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" at main (<WASM>[0]+1)\n" + // --
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" at testSimpleStack (stack.js:76:18)\n" + // --
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" at stack.js:78:3"; // --
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module.exports.main();
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assertEquals(expected_string, stripPath(stack));
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})();
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// For the remaining tests, collect the Callsite objects instead of just a
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// string:
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Error.prepareStackTrace = function(error, frames) {
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return frames;
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};
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(function testStackFrames() {
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module.exports.main();
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verifyStack(stack, [
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// isWasm function line pos file
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[ false, "STACK", 39, 0, "stack.js"],
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[ true, "main", 0, 1, null],
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[ false, "testStackFrames", 87, 0, "stack.js"],
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[ false, null, 96, 0, "stack.js"]
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]);
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})();
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(function testWasmUnreachable() {
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try {
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module.exports.exec_unreachable();
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fail("expected wasm exception");
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} catch (e) {
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assertContains("unreachable", e.message);
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verifyStack(e.stack, [
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// isWasm function line pos file
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[ true, "exec_unreachable", 1, 1, null],
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[ false, "testWasmUnreachable", 100, 0, "stack.js"],
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[ false, null, 111, 0, "stack.js"]
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]);
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}
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})();
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(function testWasmMemOutOfBounds() {
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try {
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module.exports.call_mem_out_of_bounds();
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fail("expected wasm exception");
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} catch (e) {
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assertContains("out of bounds", e.message);
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verifyStack(e.stack, [
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// isWasm function line pos file
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[ true, "", 2, 3, null],
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[ true, "call_mem_out_of_bounds", 3, 1, null],
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[ false, "testWasmMemOutOfBounds", 115, 0, "stack.js"],
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[ false, null, 127, 0, "stack.js"]
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]);
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}
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})();
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