Files
Yury Delendik 60d9e1adc3 Bug 2002637 - Remove Debugger asm.js hook, gdb tooling, devtools integration, and stale comments. r=devtools-reviewers,ochameau
Drop the now-no-op Debugger.allowUnobservedAsmJS accessor and the
matching Debugger.Object.createSource forceEnableAsmJS option, along
with all devtools plumbing that fed them (ThreadActor.observeAsmJS,
make-debugger's dbg.allowUnobservedAsmJS init, the
thread-utils/thread-configuration defaults, and the matching xpcshell
config). Delete the browser_dbg-features-asm.js integration test
and its doc-asm.html/asm.js fixtures, and the orphan
Debugger-allowUnobservedAsmJS-01.js jit-test.

Rename js/src/gdb/mozilla/asmjs.py to wasm_trap.py (its content has
only handled WasmTrapHandler SIGSEGV passthrough for some time) and
drop the obsolete test-asmjs.py.

Regenerate dom/base/use_counter_metrics.yaml to drop the js_asmjs and
js_use_asm Glean metrics following the earlier UseCounters.conf edit,
and scrub remaining asm.js mentions from js/src/doc, js/src/tests/lib,
js/xpconnect memory reporter strings, devtools docs, dom/script, and
several jit-tests.

Depends on D300556

Differential Revision: https://phabricator.services.mozilla.com/D300557
2026-06-29 15:35:41 +00:00

67 lines
1.9 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
/**
* Verify that wasm frame(s) can be requested from the client.
*/
add_task(
threadFrontTest(async ({ threadFront, debuggee }) => {
await threadFront.reconfigure({
observeWasm: true,
});
await executeOnNextTickAndWaitForPause(
() => evalCode(debuggee),
threadFront
);
const frameResponse = await threadFront.getFrames(0, null);
Assert.equal(frameResponse.frames.length, 4);
const wasmFrame = frameResponse.frames[1];
Assert.equal(wasmFrame.type, "wasmcall");
Assert.equal(wasmFrame.this, undefined);
const location = wasmFrame.where;
const source = await getSourceById(threadFront, location.actor);
Assert.equal(location.line > 0, true);
Assert.equal(location.column > 0, true);
Assert.equal(/^wasm:(?:[^:]*:)*?[0-9a-f]{16}$/.test(source.url), true);
await threadFront.resume();
})
);
function evalCode(debuggee) {
/* eslint-disable comma-spacing, max-len */
debuggee.eval(
"(" +
function () {
// WebAssembly bytecode was generated by running:
// js -e 'print(wasmTextToBinary("(module(import \"a\" \"b\")(func(export \"c\")call 0))"))'
const m = new WebAssembly.Module(
new Uint8Array([
0, 97, 115, 109, 1, 0, 0, 0, 1, 132, 128, 128, 128, 0, 1, 96, 0, 0,
2, 135, 128, 128, 128, 0, 1, 1, 97, 1, 98, 0, 0, 3, 130, 128, 128,
128, 0, 1, 0, 6, 129, 128, 128, 128, 0, 0, 7, 133, 128, 128, 128, 0,
1, 1, 99, 0, 1, 10, 138, 128, 128, 128, 0, 1, 132, 128, 128, 128, 0,
0, 16, 0, 11,
])
);
const i = new WebAssembly.Instance(m, {
a: {
b: () => {
debugger;
},
},
});
i.exports.c();
} +
")()"
);
}