1 /* 2 * Copyright (c) 2019, Red Hat, Inc. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 import java.io.File; 27 import java.io.PrintWriter; 28 import java.nio.file.Files; 29 import java.nio.file.Paths; 30 import java.nio.file.StandardOpenOption; 31 import java.util.Arrays; 32 import java.util.List; 33 import java.util.stream.Collectors; 34 35 /** 36 * Fake objcopy used by StripNativeDebugSymbolsTest. It prints the 37 * passed in arguments to a log and creates a fake debug info file 38 * for --only-keep-debug invocation. Note that the first argument is 39 * the path to the log file. This argument will be omitted when 40 * logged. 41 * 42 * Callers need to ensure the log file is properly truncated. 43 * 44 * @author Severin Gehwolf 45 */ 46 public class FakeObjCopy { 47 48 private static final String OBJCOPY_ONLY_KEEP_DEBUG_OPT = "--only-keep-debug"; 49 50 public static void main(String[] args) throws Exception { 51 if (args.length < 1) { 52 throw new AssertionError("At least one argument expected"); 53 } 54 String[] objCopyArgs = new String[args.length - 1]; 55 System.arraycopy(args, 1, objCopyArgs, 0, objCopyArgs.length); 56 String logFile = args[0]; 57 System.out.println("DEBUG: Fake objcopy called. Log file is: " + logFile); 58 // Log options 59 String line = Arrays.asList(objCopyArgs).stream().collect(Collectors.joining(" ")); 60 Files.write(Paths.get(logFile), 61 List.<String>of(line), 62 StandardOpenOption.APPEND, 63 StandardOpenOption.CREATE); 64 // Handle --only-keep-debug option as plugin attempts to read 65 // debug info file after this utility being called. 66 if (objCopyArgs.length == 3 && OBJCOPY_ONLY_KEEP_DEBUG_OPT.equals(objCopyArgs[0])) { 67 handleOnlyKeepDebug(objCopyArgs[2]); 68 } 69 } 70 71 private static void handleOnlyKeepDebug(String dbgFile) throws Exception { 72 try (PrintWriter pw = new PrintWriter(new File(dbgFile))) { 73 pw.println("Fake objcopy debug info file"); 74 } 75 System.out.println("DEBUG: wrote fake debug file " + dbgFile); 76 } 77 78 }