1 /* 2 * Copyright (c) 2014, 2015, 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 import java.util.Arrays; 26 import java.util.EnumSet; 27 28 import sun.hotspot.WhiteBox; 29 import sun.hotspot.code.CodeBlob; 30 import sun.hotspot.code.BlobType; 31 import jdk.test.lib.Asserts; 32 33 /* 34 * @test GetCodeHeapEntriesTest 35 * @bug 8059624 36 * @library /testlibrary /../../test/lib 37 * @modules java.management 38 * @build GetCodeHeapEntriesTest 39 * @run main ClassFileInstaller sun.hotspot.WhiteBox 40 * sun.hotspot.WhiteBox$WhiteBoxPermission 41 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 42 * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache 43 * GetCodeHeapEntriesTest 44 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 45 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache 46 * GetCodeHeapEntriesTest 47 * @summary testing of WB::getCodeHeapEntries() 48 */ 49 public class GetCodeHeapEntriesTest { 50 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); 51 private static final int SIZE = 1024; 52 private static final String DUMMY_NAME = "WB::DummyBlob"; 53 private static EnumSet<BlobType> SEGMENTED_TYPES 54 = EnumSet.complementOf(EnumSet.of(BlobType.All)); 55 56 public static void main(String[] args) { 57 EnumSet<BlobType> blobTypes = BlobType.getAvailable(); 58 for (BlobType type : blobTypes) { 59 new GetCodeHeapEntriesTest(type).test(); 60 } 61 } 62 63 private final BlobType type; 64 private GetCodeHeapEntriesTest(BlobType type) { 65 this.type = type; 66 } 67 68 private void test() { 69 System.out.printf("type %s%n", type); 70 long addr = WHITE_BOX.allocateCodeBlob(SIZE, type.id); 71 Asserts.assertNE(0, addr, "allocation failed"); 72 CodeBlob[] blobs = CodeBlob.getCodeBlobs(type); 73 Asserts.assertNotNull(blobs); 74 CodeBlob blob = Arrays.stream(blobs) 75 .filter(GetCodeHeapEntriesTest::filter) 76 .findAny() 77 .get(); 78 Asserts.assertNotNull(blob); 79 Asserts.assertEQ(blob.code_blob_type, type); 80 Asserts.assertGTE(blob.size, SIZE); 81 82 WHITE_BOX.freeCodeBlob(addr); 83 blobs = CodeBlob.getCodeBlobs(type); 84 long count = Arrays.stream(blobs) 85 .filter(GetCodeHeapEntriesTest::filter) 86 .count(); 87 Asserts.assertEQ(0L, count); 88 } 89 90 private static boolean filter(CodeBlob blob) { 91 if (blob == null) { 92 return false; 93 } 94 return DUMMY_NAME.equals(blob.name); 95 } 96 }