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