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