--- /dev/null 2019-02-15 09:11:05.676000757 +0100 +++ new/test/jdk/tools/jlink/plugins/strip-native-debug-symbols/FakeObjCopy.java 2019-02-15 17:55:00.781521742 +0100 @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2019, Red Hat, Inc. + * 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +import java.io.File; +import java.io.PrintWriter; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.nio.file.StandardOpenOption; +import java.util.Arrays; +import java.util.List; +import java.util.stream.Collectors; + +/** + * Fake objcopy used by StripNativeDebugSymbolsTest. It prints the + * passed in arguments to a log and creates a fake debug info file + * for --only-keep-debug invocation. Note that the first argument is + * the path to the log file. This argument will be omitted when + * logged. + * + * Callers need to ensure the log file is properly truncated. + * + * @author Severin Gehwolf + */ +public class FakeObjCopy { + + private static final String OBJCOPY_ONLY_KEEP_DEBUG_OPT = "--only-keep-debug"; + + public static void main(String[] args) throws Exception { + if (args.length < 1) { + throw new AssertionError("At least one argument expected"); + } + String[] objCopyArgs = new String[args.length - 1]; + System.arraycopy(args, 1, objCopyArgs, 0, objCopyArgs.length); + String logFile = args[0]; + System.out.println("DEBUG: Fake objcopy called. Log file is: " + logFile); + // Log options + String line = Arrays.asList(objCopyArgs).stream().collect(Collectors.joining(" ")); + Files.write(Paths.get(logFile), + List.of(line), + StandardOpenOption.APPEND, + StandardOpenOption.CREATE); + // Handle --only-keep-debug option as plugin attempts to read + // debug info file after this utility being called. + if (objCopyArgs.length == 3 && OBJCOPY_ONLY_KEEP_DEBUG_OPT.equals(objCopyArgs[0])) { + handleOnlyKeepDebug(objCopyArgs[2]); + } + } + + private static void handleOnlyKeepDebug(String dbgFile) throws Exception { + try (PrintWriter pw = new PrintWriter(new File(dbgFile))) { + pw.println("Fake objcopy debug info file"); + } + System.out.println("DEBUG: wrote fake debug file " + dbgFile); + } + +}