1/* 2 * Copyright (c) 2014, 2016, 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 GetCodeHeapEntriesTest 26 * @bug 8059624 27 * @summary testing of WB::getCodeHeapEntries() 28 * @library /test/lib / 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @build sun.hotspot.WhiteBox 32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache 36 * compiler.whitebox.GetCodeHeapEntriesTest 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 38 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache 39 * compiler.whitebox.GetCodeHeapEntriesTest 40 */ 41 42package compiler.whitebox; 43 44import jdk.test.lib.Asserts; 45import sun.hotspot.WhiteBox; 46import sun.hotspot.code.BlobType; 47import sun.hotspot.code.CodeBlob; 48 49import java.util.Arrays; 50import java.util.EnumSet; 51 52public class GetCodeHeapEntriesTest { 53 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); 54 private static final int SIZE = 1024; 55 private static final String DUMMY_NAME = "WB::DummyBlob"; 56 private static EnumSet<BlobType> SEGMENTED_TYPES 57 = EnumSet.complementOf(EnumSet.of(BlobType.All)); 58 59 public static void main(String[] args) { 60 EnumSet<BlobType> blobTypes = BlobType.getAvailable(); 61 for (BlobType type : blobTypes) { 62 new GetCodeHeapEntriesTest(type).test(); 63 } 64 } 65 66 private final BlobType type; 67 private GetCodeHeapEntriesTest(BlobType type) { 68 this.type = type; 69 } 70 71 private void test() { 72 System.out.printf("type %s%n", type); 73 long addr = WHITE_BOX.allocateCodeBlob(SIZE, type.id); 74 Asserts.assertNE(0, addr, "allocation failed"); 75 CodeBlob[] blobs = CodeBlob.getCodeBlobs(type); 76 Asserts.assertNotNull(blobs); 77 CodeBlob blob = Arrays.stream(blobs) 78 .filter(GetCodeHeapEntriesTest::filter) 79 .findAny() 80 .get(); 81 Asserts.assertNotNull(blob); 82 Asserts.assertEQ(blob.code_blob_type, type); 83 Asserts.assertGTE(blob.size, SIZE); 84 85 WHITE_BOX.freeCodeBlob(addr); 86 blobs = CodeBlob.getCodeBlobs(type); 87 long count = Arrays.stream(blobs) 88 .filter(GetCodeHeapEntriesTest::filter) 89 .count(); 90 Asserts.assertEQ(0L, count); 91 } 92 93 private static boolean filter(CodeBlob blob) { 94 if (blob == null) { 95 return false; 96 } 97 return DUMMY_NAME.equals(blob.name); 98 } 99} 100