| /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* ***** BEGIN LICENSE BLOCK ***** |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is JavaScript Engine testing utilities. |
| * |
| * The Initial Developer of the Original Code is |
| * Mozilla Foundation. |
| * Portions created by the Initial Developer are Copyright (C) 2006 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): Igor Bukanov |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
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| * ***** END LICENSE BLOCK ***** */ |
| |
| var gTestfile = 'regress-324278.js'; |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 324278; |
| var summary = 'GC without recursion'; |
| var actual = 'No Crash'; |
| var expect = 'No Crash'; |
| |
| printBugNumber(BUGNUMBER); |
| printStatus (summary); |
| |
| // Number to push native stack size beyond 10MB if GC recurses generating |
| // segfault on Fedora Core / Ubuntu Linuxes where the stack size by default |
| // is 10MB/8MB. |
| var N = 100*1000; |
| |
| function build(N) { |
| // Explore the fact that regexp literals are shared between |
| // function invocations. Thus we build the following chain: |
| // chainTop: function->regexp->function->regexp....->null |
| // to check how GC would deal with this chain. |
| |
| var chainTop = null; |
| for (var i = 0; i != N; ++i) { |
| var f = Function('some_arg'+i, ' return /test/;'); |
| var re = f(); |
| re.previous = chainTop; |
| chainTop = f; |
| } |
| return chainTop; |
| } |
| |
| function check(chainTop, N) { |
| for (var i = 0; i != N; ++i) { |
| var re = chainTop(); |
| chainTop = re.previous; |
| } |
| if (chainTop !== null) |
| throw "Bad chainTop"; |
| |
| } |
| |
| if (typeof gc != "function") { |
| gc = function() { |
| for (var i = 0; i != 50*1000; ++i) { |
| var tmp = new Object(); |
| } |
| } |
| } |
| |
| var chainTop = build(N); |
| printStatus("BUILT"); |
| gc(); |
| check(chainTop, N); |
| printStatus("CHECKED"); |
| chainTop = null; |
| gc(); |
| |
| reportCompare(expect, actual, summary); |