1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 import org.opensolaris.os.dtrace.*; 28 29 /** 30 * Regression for bug 6413280 lookupKernelFunction() and 31 * lookupUserFunction() truncate last character. 32 */ 33 public class TestFunctionLookup { 34 static final String kernelLookupProgram = "sdt:::callout-start { " + 35 "@[((callout_t *)arg0)->c_func] = count(); }"; 36 static final String userLookupProgram = "pid$target::f2:entry { " + 37 "@[arg0] = count(); }"; 38 39 public static void 40 main(String[] args) 41 { 42 if (args.length != 1) { 43 System.err.println("usage: java TestFunctionLookup <command>"); 44 System.exit(1); 45 } 46 String cmd = args[0]; 47 48 Consumer consumer = new LocalConsumer(); 49 try { 50 consumer.open(); 51 consumer.compile(kernelLookupProgram); 52 consumer.enable(); 53 consumer.go(); 54 Aggregate a; 55 Number address; 56 String f; 57 boolean done = false; 58 for (int i = 0; (i < 20) && !done; ++i) { 59 Thread.sleep(100); 60 a = consumer.getAggregate(); 61 for (Aggregation agg : a.getAggregations()) { 62 for (Tuple tuple : agg.asMap().keySet()) { 63 address = (Number)tuple.get(0).getValue(); 64 if (address instanceof Integer) { 65 int addr = (Integer)address; 66 f = consumer.lookupKernelFunction(addr); 67 } else { 68 long addr = (Long)address; 69 f = consumer.lookupKernelFunction(addr); 70 } 71 if (f.equals("genunix`cv_wakeup")) { 72 System.out.println(f); 73 done = true; 74 } 75 } 76 } 77 } 78 consumer.close(); 79 } catch (Exception e) { 80 e.printStackTrace(); 81 System.exit(1); 82 } 83 84 consumer = new LocalConsumer(); 85 try { 86 consumer.open(); 87 int pid = consumer.createProcess(cmd); 88 consumer.compile(userLookupProgram); 89 consumer.enable(); 90 consumer.go(); 91 Thread.sleep(500); 92 Aggregate a = consumer.getAggregate(); 93 Number address; 94 String f; 95 for (Aggregation agg : a.getAggregations()) { 96 for (Tuple tuple : agg.asMap().keySet()) { 97 address = (Number)tuple.get(0).getValue(); 98 if (address instanceof Integer) { 99 int addr = (Integer)address; 100 f = consumer.lookupUserFunction(pid, addr); 101 } else { 102 long addr = (Long)address; 103 f = consumer.lookupUserFunction(pid, addr); 104 } 105 System.out.println(f); 106 } 107 } 108 consumer.close(); 109 } catch (Exception e) { 110 e.printStackTrace(); 111 System.exit(1); 112 } 113 } 114 } 115