1 /* 2 * Copyright (c) 1999, 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 * @test 26 * @bug 4270488 4787861 27 * @author Gordon Hirsch 28 * 29 * @run build TestScaffold VMConnection TargetAdapter TargetListener 30 * @run compile -g MethodCalls.java 31 * @run compile -g MethodCallsReflection.java 32 * @run compile -g ControlFlow.java 33 * @run build StepTest 34 * 35 * @summary StepTest starts at a method named "go()" in the debuggee and 36 * repetitively steps. It will do a step into until the maximum 37 * stack depth (specified on command line) is reached. At that point 38 * it begins to step over. Step granularity is determined from the 39 * command line. Stepping is repeated the until the end of go() is reached 40 * or until the requested number of steps (specified on command line) 41 * is performed. An exception is thrown if the requested number of 42 * steps does not result in the debuggee's location being at the end of 43 * go(). 44 * This test is sensitive to the line number info generated by the compiler 45 * for the debuggee files- MethodCalls.java, ... 46 * See LineNumberInfo.java for more info. 47 * 48 * +--- maximum stack depth in debuggee 49 * | +--- step granularity: "line" or "min" 50 * | | +---Expected number of steps 51 * | | | +--- Debuggee command Line 52 * V V V V Workaround-----+ 53 * V 54 * @run driver StepTest 2 line 2 MethodCalls 55 * @run driver StepTest 3 line 14 MethodCalls 56 * 57 * @run driver StepTest 2 line 18 MethodCallsReflection 12 58 * 59 * @run driver StepTest 2 min 4 MethodCalls 60 * @run driver StepTest 3 min 43 MethodCalls 61 * 62 * @run driver StepTest 2 line 65 ControlFlow 64 63 */ 64 65 /* 66 * The workaround column contains the expected number of steps 67 * on non IA64 VMs. These VMs get it wrong and should be 68 * fixed (4787861). When they are fixed, this test should be fixed 69 * to remove this workaround. 70 * The C interpreter in the IA64 VM handles catches differently 71 * than the asm interpreter. For the construct 72 * line statement 73 * ----------------- 74 * 68 catch (Exception ee) { 75 * 69 System.out.println(...) 76 * javac outputs the store into ee as being on line 68 and the 77 * start of the println on line 69. The handler starts with the 78 * store into ee, ie, line 68. When a step is done under the 79 * associated try and an exception is encountered, 80 * the IA64 VM stops at line 68 while the other VM stops at 81 * line 69. It seems that the IA64 VM is correct. 82 * But, it is too late to fix the other VM for Mantis, 83 * so this test is being made so that it will pass both VMs. 84 * For each catch that occurs, an extra step is needed 85 * on the IA64 VM. This only occurs in MethodCallsReflection 86 * which contains 6 of these catches (so we have to do 6 87 * extra steps to make it pass) and in ControlFlow which 88 * does it once. 89 * 90 */ 91 import com.sun.jdi.*; 92 import com.sun.jdi.event.*; 93 import com.sun.jdi.request.*; 94 95 import java.util.Map; 96 import java.util.HashMap; 97 98 public class StepTest extends TestScaffold { 99 int maxDepth; 100 String granularity; 101 int expectedCount; 102 int workaroundCount = 0; 103 boolean lastStepNeeded = true; main(String args[])104 public static void main(String args[]) throws Exception { 105 new StepTest(args).startTests(); 106 } 107 StepTest(String args[])108 StepTest(String args[]) throws Exception { 109 super(args); 110 maxDepth = Integer.decode(args[0]).intValue(); 111 granularity = args[1]; 112 expectedCount = Integer.decode(args[2]).intValue(); 113 if (args.length == 5) { 114 workaroundCount = Integer.decode(args[4]).intValue(); 115 } 116 } 117 runTests()118 protected void runTests() throws Exception { 119 // Skip test args 120 String[] args2 = new String[args.length - 3]; 121 System.arraycopy(args, 3, args2, 0, args.length - 3); 122 123 connect(args2); 124 ThreadReference thread = waitForVMStart(); 125 126 StepEvent stepEvent = stepIntoLine(thread); 127 128 String className = thread.frame(0).location().declaringType().name(); 129 System.out.println("\n\n-------Running test for class: " + className); 130 131 BreakpointEvent bpEvent = resumeTo(className, "go", "()V"); 132 thread = bpEvent.thread(); 133 134 for (int i = 0; i < expectedCount; i++) { 135 if (thread.frameCount() < maxDepth) { 136 if (granularity.equals("line")) { 137 stepEvent = stepIntoLine(thread); 138 } else { 139 stepEvent = stepIntoInstruction(thread); 140 } 141 } else { 142 if (granularity.equals("line")) { 143 stepEvent = stepOverLine(thread); 144 } else { 145 stepEvent = stepOverInstruction(thread); 146 } 147 } 148 System.out.println("Step #" + (i+1) + "complete at " + 149 stepEvent.location().method().name() + ":" + 150 stepEvent.location().lineNumber() + " (" + 151 stepEvent.location().codeIndex() + "), frameCount = " + 152 thread.frameCount()); 153 if (thread.frameCount() < 2) { 154 // We have stepped one step too far. If we did exactly 155 // the 'workaround' number of steps, then this is in all 156 // likelihood the non IA64 VM. So, stop. 157 if (i == workaroundCount) { 158 lastStepNeeded = false; 159 break; 160 } 161 // Gone too far, past return of go() 162 throw new Exception("Stepped too far"); 163 } 164 } 165 166 if (thread.frameCount() > 2) { 167 // Not far enough 168 throw new Exception("Didn't step far enough (" + thread.frame(0) + ")"); 169 } 170 171 if (lastStepNeeded) { 172 // One last step takes us out of go() 173 stepIntoLine(thread); 174 } 175 if (thread.frameCount() != 1) { 176 // Gone too far 177 throw new Exception("Didn't step far enough (" + thread.frame(0) + ")"); 178 } 179 180 // Allow application to complete 181 resumeToVMDisconnect(); 182 183 if (!testFailed) { 184 println("StepTest: passed"); 185 } else { 186 throw new Exception("StepTest: failed"); 187 } 188 } 189 } 190