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 sun.hotspot.code.BlobType; 26 import sun.hotspot.code.NMethod; 27 import jdk.test.lib.Asserts; 28 import compiler.whitebox.CompilerWhiteBoxTest; 29 30 /* 31 * @test GetNMethodTest 32 * @bug 8038240 33 * @library /testlibrary /../../test/lib / 34 * @modules java.management 35 * @build GetNMethodTest 36 * @run main ClassFileInstaller sun.hotspot.WhiteBox 37 * sun.hotspot.WhiteBox$WhiteBoxPermission 38 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCase$Helper::* GetNMethodTest 39 * @summary testing of WB::getNMethod() 40 * @author igor.ignatyev@oracle.com 41 */ 42 public class GetNMethodTest extends CompilerWhiteBoxTest { 43 public static void main(String[] args) throws Exception { 44 CompilerWhiteBoxTest.main(GetNMethodTest::new, args); 45 } 46 47 private GetNMethodTest(TestCase testCase) { 48 super(testCase); 49 // to prevent inlining of #method 50 WHITE_BOX.testSetDontInlineMethod(method, true); 51 } 52 53 @Override 54 protected void test() throws Exception { 55 checkNotCompiled(); 56 57 compile(); 58 checkCompiled(); 59 60 NMethod nmethod = NMethod.get(method, testCase.isOsr()); 61 if (IS_VERBOSE) { 62 System.out.println("nmethod = " + nmethod); 63 } 64 Asserts.assertNotNull(nmethod, 65 "nmethod of compiled method is null"); 66 Asserts.assertNotNull(nmethod.insts, 67 "nmethod.insts of compiled method is null"); 68 Asserts.assertGT(nmethod.insts.length, 0, 69 "compiled method's instructions is empty"); 70 Asserts.assertNotNull(nmethod.code_blob_type, "blob type is null"); 71 if (WHITE_BOX.getBooleanVMFlag("SegmentedCodeCache")) { 72 Asserts.assertNE(nmethod.code_blob_type, BlobType.All); 73 switch (nmethod.comp_level) { 74 case 1: 75 case 4: 76 checkBlockType(nmethod, BlobType.MethodNonProfiled); 77 break; 78 case 2: 79 case 3: 80 checkBlockType(nmethod, BlobType.MethodProfiled); 81 break; 82 default: 83 throw new Error("unexpected comp level " + nmethod); 84 } 85 } else { 86 Asserts.assertEQ(nmethod.code_blob_type, BlobType.All); 87 } 88 89 deoptimize(); 90 checkNotCompiled(); 91 nmethod = NMethod.get(method, testCase.isOsr()); 92 Asserts.assertNull(nmethod, 93 "nmethod of non-compiled method isn't null"); 94 } 95 96 private void checkBlockType(NMethod nmethod, BlobType expectedType) { 97 Asserts.assertEQ(nmethod.code_blob_type, expectedType, 98 String.format("blob_type[%s] for %d level isn't %s", 99 nmethod.code_blob_type, nmethod.comp_level, expectedType)); 100 } 101 }