v8/test/mjsunit/wasm/frame-inspection.js
clemensh 32077e01fb [wasm] Allocate a single script per wasm module
Before, we allocated one script per function per instance, and each
script referenced the wasm instance and the function index. Now we only
allocate one script per compiled wasm module, so the script also only
references this WasmCompiledModule, which causes changes to many interfaces.

Instead of fixing the disassemble API only used via debug.js, I decided
to drop it for now. Some later CL will reintroduce it via
DebugInterface.

BUG=v8:5530,chromium:659715
R=yangguo@chromium.org, titzer@chromium.org
CC=jgruber@chromium.org

Review-Url: https://codereview.chromium.org/2493823003
Cr-Commit-Position: refs/heads/master@{#41004}
2016-11-15 17:05:39 +00:00

82 lines
2.4 KiB
JavaScript

// Copyright 2016 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.
// Flags: --expose-wasm --expose-debug-as debug
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
Debug = debug.Debug
var exception = null;
var break_count = 0;
const expected_frames = [
// func-name; wasm?; pos; line; col
['call_debugger', false], // --
['wasm_2', true, 56, 2, 1], // --
['wasm_1', true, 52, 1, 2], // --
['testFrameInspection', false], // --
['', false]
];
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
++break_count;
try {
var break_id = exec_state.break_id;
var frame_count = exec_state.frameCount();
assertEquals(expected_frames.length, frame_count, 'frame count');
for (var i = 0; i < frame_count; ++i) {
var frame = exec_state.frame(i);
assertEquals(expected_frames[i][0], frame.func().name(), 'name at ' + i);
// wasm frames have unresolved function, others resolved ones.
assertEquals(
expected_frames[i][1], !frame.func().resolved(), 'resolved at ' + i);
if (expected_frames[i][1]) { // wasm frame?
var script = frame.details().script();
assertNotNull(script, 'script at ' + i);
assertEquals(
expected_frames[i][2], frame.details().sourcePosition(),
'source pos at ' + i);
var loc = script.locationFromPosition(frame.details().sourcePosition());
assertEquals(expected_frames[i][2], loc.position, 'pos at ' + i);
assertEquals(expected_frames[i][3], loc.line, 'line at ' + i);
assertEquals(expected_frames[i][4], loc.column, 'column at ' + i);
}
}
} catch (e) {
exception = e;
}
};
var builder = new WasmModuleBuilder();
// wasm_1 calls wasm_2 on offset 2.
// wasm_2 calls call_debugger on offset 1.
builder.addImport('func', kSig_v_v);
builder.addFunction('wasm_1', kSig_v_v)
.addBody([kExprNop, kExprCallFunction, 2])
.exportAs('main');
builder.addFunction('wasm_2', kSig_v_v).addBody([kExprCallFunction, 0]);
function call_debugger() {
debugger;
}
var module = builder.instantiate({func: call_debugger});
(function testFrameInspection() {
Debug.setListener(listener);
module.exports.main();
Debug.setListener(null);
assertEquals(1, break_count);
if (exception) throw exception;
})();