aaac2cbb54
Co-authored-by: James Laskey <james.laskey@oracle.com> Co-authored-by: Sundararajan Athijegannathan <sundararajan.athijegannathan@oracle.com> Reviewed-by: alanb, mchung, psandoz, acorn, lfoltan, ctornqvi
127 lines
4.5 KiB
Java
127 lines
4.5 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Test that opening image containing wrong headers fails.
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* @test ImageFileHeaderTest
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* @library /testlibrary /../../test/lib
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* @build ImageFileHeaderTest
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* @run main ClassFileInstaller sun.hotspot.WhiteBox
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* sun.hotspot.WhiteBox$WhiteBoxPermission
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ImageFileHeaderTest
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*/
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import java.nio.*;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import sun.hotspot.WhiteBox;
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import static jdk.test.lib.Asserts.*;
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public class ImageFileHeaderTest {
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public static final int MAGIC = 0xCAFEDADA;
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public static final short MAJOR = 0;
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public static final short MINOR = 1;
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public static final WhiteBox wb = WhiteBox.getWhiteBox();
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public static ByteBuffer buf;
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public static void main(String... args) throws Exception {
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ByteOrder endian = getEndian();
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// Try to read a non-existing file
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assertFalse(wb.readImageFile("bogus"));
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// Incomplete header, only include the correct magic
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(MAGIC);
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assertFalse(testImageFile("invalidheader.jimage"));
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// Build a complete header but reverse the endian
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buf = ByteBuffer.allocate(100);
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buf.order(endian == ByteOrder.LITTLE_ENDIAN ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
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buf.putInt(MAGIC);
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buf.putShort(MAJOR);
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buf.putShort(MINOR);
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assertFalse(testImageFile("wrongendian.jimage"));
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// Use the wrong magic
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(0xBEEFCACE);
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buf.putShort(MAJOR);
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buf.putShort(MINOR);
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assertFalse(testImageFile("wrongmagic.jimage"));
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// Wrong major version (current + 1)
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(MAGIC);
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buf.putShort((short)(MAJOR + 1));
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buf.putShort((short)MINOR);
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assertFalse(testImageFile("wrongmajorversion.jimage"));
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// Wrong major version (negative)
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(MAGIC);
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buf.putShort((short) -17);
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buf.putShort((short)MINOR);
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assertFalse(testImageFile("negativemajorversion.jimage"));
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// Wrong minor version (current + 1)
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(MAGIC);
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buf.putShort((short)MAJOR);
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buf.putShort((short)(MINOR + 1));
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assertFalse(testImageFile("wrongminorversion.jimage"));
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// Wrong minor version (negative)
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buf = ByteBuffer.allocate(100);
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buf.order(endian);
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buf.putInt(MAGIC);
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buf.putShort((short)MAJOR);
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buf.putShort((short) -17);
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assertFalse(testImageFile("negativeminorversion.jimage"));
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}
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public static boolean testImageFile(String filename) throws Exception {
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Files.write(Paths.get(filename), buf.array());
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System.out.println("Calling ReadImageFile on " + filename);
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return wb.readImageFile(filename);
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}
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public static ByteOrder getEndian() {
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String endian = System.getProperty("sun.cpu.endian");
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if (endian.equalsIgnoreCase("little")) {
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return ByteOrder.LITTLE_ENDIAN;
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} else if (endian.equalsIgnoreCase("big")) {
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return ByteOrder.BIG_ENDIAN;
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}
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throw new RuntimeException("Unexpected sun.cpu.endian value: " + endian);
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}
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}
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