| /* | |
| * Copyright (c) 1999, 2023, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. | |
| * | |
| * This code is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| /** | |
| * @test | |
| * @bug 4270488 4787861 | |
| * @author Gordon Hirsch | |
| * | |
| * @run build TestScaffold VMConnection TargetAdapter TargetListener | |
| * @run compile -g MethodCalls.java | |
| * @run compile -g MethodCallsReflection.java | |
| * @run compile -g ControlFlow.java | |
| * @run build StepTest | |
| * | |
| * @summary StepTest starts at a method named "go()" in the debuggee and | |
| * repetitively steps. It will do a step into until the maximum | |
| * stack depth (specified on command line) is reached. At that point | |
| * it begins to step over. Step granularity is determined from the | |
| * command line. Stepping is repeated the until the end of go() is reached | |
| * or until the requested number of steps (specified on command line) | |
| * is performed. An exception is thrown if the requested number of | |
| * steps does not result in the debuggee's location being at the end of | |
| * go(). | |
| * This test is sensitive to the line number info generated by the compiler | |
| * for the debuggee files- MethodCalls.java, ... | |
| * See LineNumberInfo.java for more info. | |
| * | |
| * +--- maximum stack depth in debuggee | |
| * | +--- step granularity: "line" or "min" | |
| * | | +---Expected number of steps | |
| * | | | +--- Debuggee command Line | |
| * V V V V Workaround-----+ | |
| * V | |
| * @run driver StepTest 2 line 2 MethodCalls | |
| * @run driver StepTest 3 line 14 MethodCalls | |
| * | |
| * @run driver StepTest 2 line 18 MethodCallsReflection 12 | |
| * | |
| * @run driver StepTest 2 min 4 MethodCalls | |
| * @run driver StepTest 3 min 43 MethodCalls | |
| * | |
| * @run driver StepTest 2 line 65 ControlFlow 64 | |
| */ | |
| /* | |
| * The workaround column contains the expected number of steps | |
| * on non IA64 VMs. These VMs get it wrong and should be | |
| * fixed (4787861). When they are fixed, this test should be fixed | |
| * to remove this workaround. | |
| * The C interpreter in the IA64 VM handles catches differently | |
| * than the asm interpreter. For the construct | |
| * line statement | |
| * ----------------- | |
| * 68 catch (Exception ee) { | |
| * 69 System.out.println(...) | |
| * javac outputs the store into ee as being on line 68 and the | |
| * start of the println on line 69. The handler starts with the | |
| * store into ee, ie, line 68. When a step is done under the | |
| * associated try and an exception is encountered, | |
| * the IA64 VM stops at line 68 while the other VM stops at | |
| * line 69. It seems that the IA64 VM is correct. | |
| * But, it is too late to fix the other VM for Mantis, | |
| * so this test is being made so that it will pass both VMs. | |
| * For each catch that occurs, an extra step is needed | |
| * on the IA64 VM. This only occurs in MethodCallsReflection | |
| * which contains 6 of these catches (so we have to do 6 | |
| * extra steps to make it pass) and in ControlFlow which | |
| * does it once. | |
| * | |
| */ | |
| import com.sun.jdi.*; | |
| import com.sun.jdi.event.*; | |
| import com.sun.jdi.request.*; | |
| import java.util.Map; | |
| import java.util.HashMap; | |
| public class StepTest extends TestScaffold { | |
| int maxDepth; | |
| String granularity; | |
| int expectedCount; | |
| String debuggeeClassName; | |
| int workaroundCount = 0; | |
| boolean lastStepNeeded = true; | |
| public static void main(String args[]) throws Exception { | |
| new StepTest(args).startTests(); | |
| } | |
| StepTest(String args[]) throws Exception { | |
| super(args); | |
| maxDepth = Integer.decode(args[0]).intValue(); | |
| granularity = args[1]; | |
| expectedCount = Integer.decode(args[2]).intValue(); | |
| debuggeeClassName = args[3]; | |
| if (args.length == 5) { | |
| workaroundCount = Integer.decode(args[4]).intValue(); | |
| } | |
| } | |
| protected void runTests() throws Exception { | |
| // Skip test args | |
| String[] args2 = new String[args.length - 3]; | |
| System.arraycopy(args, 3, args2, 0, args.length - 3); | |
| connect(args2); | |
| ThreadReference thread = waitForVMStart(); | |
| System.out.println("\n\n-------Running test for class: " + debuggeeClassName); | |
| BreakpointEvent bpEvent = resumeTo(debuggeeClassName, "go", "()V"); | |
| thread = bpEvent.thread(); | |
| int numFrames = thread.frameCount(); | |
| // maxDepth is based on the assumption that there are just two frames when we | |
| // enter the go() method. When using the virtual thread wrapper, there are many | |
| // more than that. So we need to adjust maxDepth. If we aren't using the virtual | |
| // thread wrapper, then this adjustment becomes a no-op because numFrames == 2. | |
| maxDepth = maxDepth - 2 + numFrames; | |
| for (int i = 0; i < expectedCount; i++) { | |
| StepEvent stepEvent; | |
| if (thread.frameCount() < maxDepth) { | |
| if (granularity.equals("line")) { | |
| stepEvent = stepIntoLine(thread); | |
| } else { | |
| stepEvent = stepIntoInstruction(thread); | |
| } | |
| } else { | |
| if (granularity.equals("line")) { | |
| stepEvent = stepOverLine(thread); | |
| } else { | |
| stepEvent = stepOverInstruction(thread); | |
| } | |
| } | |
| System.out.println("Step #" + (i+1) + " complete at " + | |
| stepEvent.location().method().name() + ":" + | |
| stepEvent.location().lineNumber() + " (" + | |
| stepEvent.location().codeIndex() + "), frameCount = " + | |
| thread.frameCount()); | |
| if (thread.frameCount() < numFrames) { | |
| // We have stepped one step too far. If we did exactly | |
| // the 'workaround' number of steps, then this is in all | |
| // likelihood the non IA64 VM. So, stop. | |
| if (i == workaroundCount) { | |
| lastStepNeeded = false; | |
| break; | |
| } | |
| // Gone too far, past return of go() | |
| throw new Exception("Stepped too far"); | |
| } | |
| } | |
| if (thread.frameCount() > numFrames) { | |
| // Not far enough | |
| throw new Exception("Didn't step far enough (" + thread.frame(0) + ")"); | |
| } | |
| if (lastStepNeeded) { | |
| // One last step takes us out of go() | |
| stepIntoLine(thread); | |
| } | |
| if (thread.frameCount() != numFrames - 1) { | |
| // Gone too far | |
| throw new Exception("Didn't step far enough (" + thread.frame(0) + ")"); | |
| } | |
| // Allow application to complete | |
| resumeToVMDisconnect(); | |
| if (!testFailed) { | |
| println("StepTest: passed"); | |
| } else { | |
| throw new Exception("StepTest: failed"); | |
| } | |
| } | |
| } |