1 /* 2 * Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test SharedBaseAddress 26 * @summary Test variety of values for SharedBaseAddress, making sure 27 * VM handles normal values as well as edge values w/o a crash. 28 * @requires vm.cds 29 * @library /test/lib 30 * @run driver SharedBaseAddress 31 */ 32 33 import jdk.test.lib.cds.CDSTestUtils; 34 import jdk.test.lib.cds.CDSOptions; 35 import jdk.test.lib.process.OutputAnalyzer; 36 37 public class SharedBaseAddress { 38 39 // shared base address test table 40 private static final String[] testTable = { 41 "1g", "8g", "64g","512g", "4t", 42 "32t", "128t", "0", 43 "1", "64k", "64M", 44 "0xfffffffffff00000", // archive top wraps around 64-bit address space 45 "0xfff80000", // archive top wraps around 32-bit address space 46 "0xffffffffffffffff", // archive bottom wraps around 64-bit address space -- due to align_up() 47 "0xffffffff", // archive bottom wraps around 32-bit address space -- due to align_up() 48 "0x00007ffffff00000", // end of archive will go past the end of user space on linux/x64 49 "0", // always let OS pick the base address at runtime (ASLR for CDS archive) 50 }; 51 52 public static void main(String[] args) throws Exception { 53 54 for (String testEntry : testTable) { 55 String filename = "SharedBaseAddress" + testEntry + ".jsa"; 56 System.out.println("sharedBaseAddress = " + testEntry); 57 CDSOptions opts = (new CDSOptions()) 58 .setArchiveName(filename) 59 .addPrefix("-XX:SharedBaseAddress=" + testEntry) 60 .addPrefix("-Xlog:cds=debug") 61 .addPrefix("-Xlog:cds+reloc=debug") 62 .addPrefix("-XX:NativeMemoryTracking=detail"); 63 64 CDSTestUtils.createArchiveAndCheck(opts); 65 OutputAnalyzer out = CDSTestUtils.runWithArchiveAndCheck(opts); 66 if (testEntry.equals("0")) { 67 out.shouldContain("Archive(s) were created with -XX:SharedBaseAddress=0. Always map at os-selected address.") 68 .shouldContain("Try to map archive(s) at an alternative address"); 69 } 70 } 71 } 72 }