/* -*- 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 * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** 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);