v8/test/inspector/debugger/wasm-stepping-in-from-js.js
Clemens Backes 788bffd532 [liftoff][debug] Fix step in from JS
When stepping in from JS, the stepping frame ID will not be set.
Instead of ensuring to set it properly, we can just skip the check for
the frame ID. It was needed before, when we didn't properly reset
stepping information. Now, it's redundant anyway.

Also, ensure that we don't redirect to the interpreter if the
--debug-in-liftoff flag is set.

Drive-by: Fix and clang-format some parts of the test (no semantic
change).

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

Bug: v8:10351
Change-Id: I58a3cd68937006c2d6b755a4465e793abcf8a20c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2124317
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66904}
2020-03-30 12:30:20 +00:00

107 lines
3.1 KiB
JavaScript

// Copyright 2019 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 stepping from javascript into wasm');
session.setupScriptMap();
utils.load('test/mjsunit/wasm/wasm-module-builder.js');
let builder = new WasmModuleBuilder();
// wasm_A
let func = builder.addFunction('wasm_A', kSig_i_i)
.addBody([
kExprLocalGet, 0, // push param 0
kExprI32Const, 1, // push constant 1
kExprI32Sub // subtract
])
.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});
Protocol.Debugger.onPaused(async message => {
InspectorTest.log('paused');
var frames = message.params.callFrames;
await session.logSourceLocation(frames[0].location);
let action = step_actions.shift() || 'resume';
InspectorTest.log('Debugger.' + action)
await Protocol.Debugger[action]();
})
let step_actions = [
'stepInto', // # debugger
'stepInto', // step into instance.exports.main(1)
'resume', // move to breakpoint
'resume', // then just resume.
];
contextGroup.addScript(`
function test() {
debugger;
instance.exports.main(1);
}
//# sourceURL=test.js`);
(async function Test() {
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();
InspectorTest.log('Setting breakpoint on i32.const');
let msg = await Protocol.Debugger.setBreakpoint({
'location': {
'scriptId': scriptId,
'lineNumber': 0,
'columnNumber': 2 + func.body_offset
}
});
printFailure(msg);
InspectorTest.logMessage(msg.result.actualLocation);
await Protocol.Runtime.evaluate({expression: 'test()'});
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;
}
}