v8/test/inspector/debugger/wasm-conditional-breakpoints.js
Benedikt Meurer cad99884fb [inspector][wasm] Stop relying on //# sourceURL annotation.
These tests unnecessarily rely on the `//# sourceURL` annotation. This
is preparatory work to eventually move the treatment of `sourceURL` to
the DevTools front-end.

Bug: chromium:1183990
Change-Id: I934eb1580f503b7b9f8d97c250b7c798bc67e268
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814568
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73878}
2021-04-09 09:43:53 +00:00

77 lines
2.9 KiB
JavaScript

// Copyright 2021 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/inspector/wasm-inspector-test.js');
const {session, contextGroup, Protocol} =
InspectorTest.start('Test conditional breakpoints in wasm.');
session.setupScriptMap();
const builder = new WasmModuleBuilder();
const fib_body = [
kExprLocalGet, 0, // i (for br_if or i32.sub)
kExprLocalGet, 0, kExprI32Const, 2, kExprI32LeS, // i < 2 ?
kExprBrIf, 0, // --> return i
kExprI32Const, 1, kExprI32Sub, // i - 1
kExprCallFunction, 0, // fib(i - 1)
kExprLocalGet, 0, kExprI32Const, 2, kExprI32Sub, // i - 2
kExprCallFunction, 0, // fib(i - 2)
kExprI32Add // add (and return)
];
const fib = builder.addFunction('fib', kSig_i_i).addBody(fib_body).exportFunc();
const module_bytes = builder.toArray();
const find_offset = opcode => fib.body_offset + fib_body.indexOf(opcode);
const breakpoints = [
{loc: find_offset(kExprLocalGet), cond: 'false'},
{loc: find_offset(kExprBrIf), cond: 'true'},
{loc: find_offset(kExprCallFunction), cond: '$var0.value==3'}
];
Protocol.Debugger.onPaused(async msg => {
var frames = msg.params.callFrames;
await session.logSourceLocation(frames[0].location);
var frame = msg.params.callFrames[0];
for (var scope of frame.scopeChain) {
if (scope.type != 'local') continue;
var properties = await Protocol.Runtime.getProperties(
{'objectId': scope.object.objectId});
for (var {name, value} of properties.result.result) {
value = await WasmInspectorTest.getWasmValue(value);
InspectorTest.log(`${name}: ${value}`);
}
}
Protocol.Debugger.resume();
});
InspectorTest.runAsyncTestSuite([
async function test() {
await Protocol.Runtime.enable();
await Protocol.Debugger.enable();
InspectorTest.log('Instantiating.');
// Spawn asynchronously:
WasmInspectorTest.instantiate(module_bytes);
InspectorTest.log('Waiting for wasm script.');
const [, {params: wasm_script}] = await Protocol.Debugger.onceScriptParsed(2);
InspectorTest.log(`Got wasm script: ${wasm_script.url}`);
for (let breakpoint of breakpoints) {
InspectorTest.log(`Setting breakpoint at offset ${breakpoint.loc}, condition "${breakpoint.cond}"`);
InspectorTest.logMessage(await Protocol.Debugger.setBreakpoint({
'location': {
'scriptId': wasm_script.scriptId,
'lineNumber': 0,
'columnNumber': breakpoint.loc
},
condition: breakpoint.cond
}));
}
InspectorTest.log('Calling fib(5)');
await WasmInspectorTest.evalWithUrl('instance.exports.fib(5)', 'runWasm');
InspectorTest.log('fib returned!');
}
]);