v8/test/inspector/debugger/wasm-debug-command.js
Z Nguyen-Huu b2c5499907 Implement debug(function) helper for Wasm functions
Re-use set breakpoint logic for wasm script to set breakpoint to first
breakable position of given wasm function.

Bug: v8:9724
Change-Id: Ibd6b59d5b93c6895f71f0114291bf78db03aee0b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2001564
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65827}
2020-01-16 20:07:15 +00:00

98 lines
2.8 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.
let {session, contextGroup, Protocol} = InspectorTest.start('Tests debug command for wasm');
session.setupScriptMap();
utils.load('test/mjsunit/wasm/wasm-module-builder.js');
let builder = new WasmModuleBuilder();
// wasm_A
builder.addFunction('wasm_A', kSig_i_i)
.addBody([
// clang-format off
kExprLocalGet, 0, // Line 1: get input
kExprI32Const, 1, // Line 2: get constant 1
kExprI32Sub // Line 3: decrease
// clang-format on
])
.exportAs('main');
let module_bytes = builder.toArray();
function instantiate(bytes) {
let buffer = new ArrayBuffer(bytes.length);
let view = new Uint8Array(buffer);
for (let i = 0; i < bytes.length; ++i) {
view[i] = bytes[i] | 0;
}
let module = new WebAssembly.Module(buffer);
// Set global variable.
instance = new WebAssembly.Instance(module);
}
let evalWithUrl = (code, url) => Protocol.Runtime.evaluate(
{'expression': code + '\n//# sourceURL=v8://test/' + url});
let breakCount;
Protocol.Debugger.onPaused(async message => {
breakCount++;
InspectorTest.log("paused No " + breakCount);
var frames = message.params.callFrames;
await session.logSourceLocation(frames[0].location);
let action= 'resume';
InspectorTest.log('Debugger.' + action)
await Protocol.Debugger[action]();
})
let breakpointId;
contextGroup.addScript(`
function test() {
debug(instance.exports.main);
instance.exports.main(3, 2);
}
//# sourceURL=test.js`);
(async function Test() {
breakCount = 0;
breakpointId = 0;
await Protocol.Debugger.enable();
InspectorTest.log('Installing code and global variable.');
await evalWithUrl('var instance;\n' + instantiate.toString(), 'setup');
InspectorTest.log('Calling instantiate function.');
evalWithUrl(
'instantiate(' + JSON.stringify(module_bytes) + ')', 'callInstantiate');
const scriptId = await waitForWasmScript();
await Protocol.Runtime.evaluate({ expression: 'test()', includeCommandLineAPI: true});
InspectorTest.log('exports.main returned!');
InspectorTest.log('Finished!');
InspectorTest.completeTest();
})();
function printFailure(message) {
if (!message.result) {
InspectorTest.logMessage(message);
}
return message;
}
async function waitForWasmScript() {
InspectorTest.log('Waiting for wasm scripts to be parsed.');
while (true) {
let msg = await Protocol.Debugger.onceScriptParsed();
let url = msg.params.url;
if (!url.startsWith('wasm://')) {
InspectorTest.log('Ignoring script with url ' + url);
continue;
}
let scriptId = msg.params.scriptId;
InspectorTest.log('Got wasm script: ' + url);
return scriptId;
}
}