v8/test/inspector/wasm-inspector-test.js
Clemens Backes 0c7595b9fb [wasm][debug] Implement stepping out from JS to wasm
This specific case was not implemented or tested before. Implementing it
actually simplifies some of the existing logic, since StepOut can now
reuse the generic logic in debug.cc for all cases (Wasm->Wasm, Wasm->JS,
JS->Wasm).

Drive-by:
1) Fix typo ("skip" -> "step").
2) Move the check for Liftoff code from debug.cc to wasm-debug.cc, where
   it fits better.
3) Remove a TODO which is done already.

R=thibaudm@chromium.org, szuend@chromium.org

Bug: chromium:1145176
Change-Id: I415ca1d8bacef5b21bf1dafd9e16417ec2d12c7c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2560719
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71428}
2020-11-26 14:22:25 +00:00

104 lines
3.5 KiB
JavaScript

// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
utils.load('test/mjsunit/wasm/wasm-module-builder.js');
WasmInspectorTest = {}
InspectorTest.getWasmOpcodeName = getOpcodeName;
WasmInspectorTest.evalWithUrl = (code, url) =>
Protocol.Runtime
.evaluate({'expression': code + '\n//# sourceURL=v8://test/' + url})
.then(printIfFailure);
WasmInspectorTest.instantiateFromBuffer = function(bytes, imports) {
var buffer = new ArrayBuffer(bytes.length);
var view = new Uint8Array(buffer);
for (var i = 0; i < bytes.length; ++i) {
view[i] = bytes[i] | 0;
}
const module = new WebAssembly.Module(buffer);
return new WebAssembly.Instance(module, imports);
}
WasmInspectorTest.instantiate = async function(bytes, instance_name = 'instance') {
const instantiate_code = `var ${instance_name} = (${WasmInspectorTest.instantiateFromBuffer})(${JSON.stringify(bytes)});`;
await WasmInspectorTest.evalWithUrl(instantiate_code, 'instantiate');
}
WasmInspectorTest.dumpScopeProperties = async function(message) {
printIfFailure(message);
for (var value of message.result.result) {
var value_str = await getScopeValues(value.name, value.value);
InspectorTest.log(' ' + value.name + ': ' + value_str);
}
}
WasmInspectorTest.getWasmValue = function(wasmValue) {
return typeof (wasmValue.value) === 'undefined' ?
wasmValue.unserializableValue :
wasmValue.value;
}
function printIfFailure(message) {
if (!message.result) {
InspectorTest.logMessage(message);
}
return message;
}
async function getScopeValues(name, value) {
if (value.type == 'object') {
if (value.subtype == 'typedarray') return value.description;
if (name == 'instance') return dumpInstanceProperties(value);
let msg = await Protocol.Runtime.getProperties({objectId: value.objectId});
printIfFailure(msg);
const printProperty = function(elem) {
const wasmValue = WasmInspectorTest.getWasmValue(elem.value);
return `"${elem.name}": ${wasmValue} (${elem.value.subtype})`;
}
return msg.result.result.map(printProperty).join(', ');
}
return WasmInspectorTest.getWasmValue(value) + ' (' + value.subtype + ')';
}
function recursiveGetPropertiesWrapper(value, depth) {
return recursiveGetProperties({result: {result: [value]}}, depth);
}
async function recursiveGetProperties(value, depth) {
if (depth > 0) {
const properties = await Promise.all(value.result.result.map(
x => {return Protocol.Runtime.getProperties({objectId: x.value.objectId});}));
const recursiveProperties = await Promise.all(properties.map(
x => {return recursiveGetProperties(x, depth - 1);}));
return recursiveProperties.flat();
}
return value;
}
async function dumpInstanceProperties(instanceObj) {
function invokeGetter(property) {
return this[JSON.parse(property)];
}
const exportsName = 'exports';
let exportsObj = await Protocol.Runtime.callFunctionOn(
{objectId: instanceObj.objectId,
functionDeclaration: invokeGetter.toString(),
arguments: [{value: JSON.stringify(exportsName)}]
});
printIfFailure(exportsObj);
let exports = await Protocol.Runtime.getProperties(
{objectId: exportsObj.result.result.objectId});
printIfFailure(exports);
const printExports = function(value) {
return `"${value.name}" (${value.value.className})`;
}
const formattedExports = exports.result.result.map(printExports).join(', ');
return `${exportsName}: ${formattedExports}`
}