97 lines
4.7 KiB
Java
97 lines
4.7 KiB
Java
/*
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* Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test SharedBaseAddress
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* @bug 8265705
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* @summary Test variety of values for SharedBaseAddress, making sure
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* VM handles normal values as well as edge values w/o a crash.
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* @requires vm.cds
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* @library /test/lib
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* @run driver SharedBaseAddress
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*/
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import jdk.test.lib.cds.CDSTestUtils;
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import jdk.test.lib.cds.CDSOptions;
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import jdk.test.lib.process.OutputAnalyzer;
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public class SharedBaseAddress {
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// shared base address test table
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private static final String[] testTable = {
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"1g", "8g", "64g","512g", "4t",
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"32t", "128t", "0",
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"1", "64k", "64M",
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"0x800001000", // Default base address + 1 page - probably valid but unaligned to metaspace alignment, see JDK 8247522
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"0xfffffffffff00000", // archive top wraps around 64-bit address space
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"0xfff80000", // archive top wraps around 32-bit address space
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"0xffffffffffffffff", // archive bottom wraps around 64-bit address space -- due to align_up()
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"0xffffffff", // archive bottom wraps around 32-bit address space -- due to align_up()
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"0x00007ffffff00000", // end of archive will go past the end of user space on linux/x64
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"0x500000000", // (20g) below 32g at a 4g aligned address, but cannot be expressed with a logical
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// immediate on aarch64 (0x5_0000_0000) (see JDK-8265705)
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"0", // always let OS pick the base address at runtime (ASLR for CDS archive)
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};
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// failed pattern
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private static String failedPattern = "os::release_memory\\(0x[0-9a-fA-F]*,\\s[0-9]*\\)\\sfailed";
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public static void main(String[] args) throws Exception {
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for (int run = 0; run < 2; run ++) {
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// We run twice:
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// Once, where we want to increase the chance that mapping the generated archive at the designated base
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// succeeds, to test Klass pointer encoding at that weird location. We do this by sizing heap + class space
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// small, and by switching off compressed oops.
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// On the second run, we don't do this but instead go with default parameters. This is more of a test of
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// CDS' ability to recover if mapping at runtime fails.
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for (String testEntry : testTable) {
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String filename = "SharedBaseAddress-base" + testEntry + "-run" + run + ".jsa";
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System.out.println("sharedBaseAddress = " + testEntry);
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CDSOptions opts = (new CDSOptions())
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.setArchiveName(filename)
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.addPrefix("-XX:SharedBaseAddress=" + testEntry)
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.addPrefix("-Xlog:cds=debug")
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.addPrefix("-Xlog:cds+reloc=debug")
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.addPrefix("-Xlog:nmt=debug")
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.addPrefix("-Xlog:os=debug")
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.addPrefix("-Xlog:gc+metaspace")
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.addPrefix("-XX:NativeMemoryTracking=detail");
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if (run == 0) {
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opts.addPrefix("-Xmx128m")
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.addPrefix("-XX:CompressedClassSpaceSize=32m")
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.addPrefix("-XX:-UseCompressedOops");
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}
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CDSTestUtils.createArchiveAndCheck(opts);
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OutputAnalyzer out = CDSTestUtils.runWithArchiveAndCheck(opts);
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if (testEntry.equals("0")) {
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out.shouldContain("Archive(s) were created with -XX:SharedBaseAddress=0. Always map at os-selected address.")
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.shouldContain("Try to map archive(s) at an alternative address")
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.shouldNotMatch(failedPattern);
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}
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}
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}
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}
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}
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