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/* Copyright (c) 2017 Matthias Bläsing, All Rights Reserved
*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
package com.sun.jna;
import java.io.*;
import org.junit.AfterClass;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.BeforeClass;
import org.junit.Test;
public class ELFAnalyserTest {
private static final File TEST_RESOURCES = new File("build/test-resources");
private static final File WIN32_LIB = new File(TEST_RESOURCES, "win32-x86-64.dll");
private static final File LINUX_ARMEL_LIB = new File(TEST_RESOURCES, "linux-armel.so");
private static final File LINUX_ARMEL_NOFLAG_LIG = new File(TEST_RESOURCES, "linux-armel-noflag.so");
private static final File LINUX_ARMHF_NOFLAG_LIG = new File(TEST_RESOURCES, "linux-armhf-noflag.so");
private static final File LINUX_ARMHF_LIB = new File(TEST_RESOURCES, "linux-armhf.so");
private static final File LINUX_AMD64_LIB = new File(TEST_RESOURCES, "linux-amd64.so");
@BeforeClass
public static void initClass() throws IOException {
TEST_RESOURCES.mkdirs();
extractTestFile(WIN32_LIB);
extractTestFile(LINUX_ARMEL_LIB);
extractTestFile(LINUX_ARMHF_LIB);
extractTestFile(LINUX_AMD64_LIB);
makeLinuxArmNoflagLib(LINUX_ARMEL_LIB, LINUX_ARMEL_NOFLAG_LIG);
makeLinuxArmNoflagLib(LINUX_ARMHF_LIB, LINUX_ARMHF_NOFLAG_LIG);
}
@Test
public void testNonELF() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(WIN32_LIB.getAbsolutePath());
assertFalse(ahfd.isELF());
}
@Test
public void testNonArm() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(LINUX_AMD64_LIB.getAbsolutePath());
assertTrue(ahfd.isELF());
assertFalse(ahfd.isArm());
assertTrue(ahfd.is64Bit());
}
@Test
public void testArmhf() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(LINUX_ARMHF_LIB.getAbsolutePath());
assertTrue(ahfd.isELF());
assertTrue(ahfd.isArm());
assertFalse(ahfd.is64Bit());
assertFalse(ahfd.isArmSoftFloatFlag());
assertTrue(ahfd.isArmHardFloatFlag());
assertTrue(ahfd.isArmEabiAapcsVfp());
assertTrue(ahfd.isArmHardFloat());
}
@Test
public void testArmel() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(LINUX_ARMEL_LIB.getAbsolutePath());
assertTrue(ahfd.isELF());
assertTrue(ahfd.isArm());
assertFalse(ahfd.is64Bit());
assertTrue(ahfd.isArmSoftFloatFlag());
assertFalse(ahfd.isArmHardFloatFlag());
assertFalse(ahfd.isArmEabiAapcsVfp());
assertFalse(ahfd.isArmHardFloat());
}
@Test
public void testArmelNoflag() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(LINUX_ARMEL_NOFLAG_LIG.getAbsolutePath());
assertTrue(ahfd.isELF());
assertTrue(ahfd.isArm());
assertFalse(ahfd.is64Bit());
assertFalse(ahfd.isArmSoftFloatFlag());
assertFalse(ahfd.isArmHardFloatFlag());
assertFalse(ahfd.isArmEabiAapcsVfp());
assertFalse(ahfd.isArmHardFloat());
}
@Test
public void testArmhfNoflag() throws IOException {
ELFAnalyser ahfd = ELFAnalyser.analyse(LINUX_ARMHF_NOFLAG_LIG.getAbsolutePath());
assertTrue(ahfd.isELF());
assertTrue(ahfd.isArm());
assertFalse(ahfd.is64Bit());
assertFalse(ahfd.isArmSoftFloatFlag());
assertFalse(ahfd.isArmHardFloatFlag());
assertTrue(ahfd.isArmEabiAapcsVfp());
assertTrue(ahfd.isArmHardFloat());
}
@AfterClass
public static void afterClass() throws IOException {
LINUX_AMD64_LIB.delete();
LINUX_ARMHF_LIB.delete();
LINUX_ARMEL_LIB.delete();
WIN32_LIB.delete();
LINUX_ARMEL_NOFLAG_LIG.delete();
LINUX_ARMHF_NOFLAG_LIG.delete();
TEST_RESOURCES.delete();
}
private static void extractTestFile(File outputFile) throws IOException {
String inputPath = "/com/sun/jna/data/" + outputFile.getName();
try (InputStream is = ELFAnalyserTest.class.getResourceAsStream(inputPath);
OutputStream os = new FileOutputStream(outputFile)) {
copyStream(is, os);
}
}
// The e_flags for elf arm binaries begin at an offset of 0x24 bytes.
// The procedure call standard is coded on the second byte.
private static void makeLinuxArmNoflagLib(File sourceFile, File outputFile) throws IOException {
final int POS_ABI_FLOAT_BIT = (byte) 0x25;
copyFile(sourceFile, outputFile);
RandomAccessFile out = new RandomAccessFile(outputFile, "rw");
out.seek(POS_ABI_FLOAT_BIT);
out.write(0);
out.close();
}
private static void copyFile(File sourceFile, File outputFile) throws IOException {
InputStream inputStream = null;
OutputStream outputStream = null;
try {
inputStream = new FileInputStream(sourceFile);
outputStream = new FileOutputStream(outputFile);
copyStream(inputStream, outputStream);
} finally {
closeSilently(inputStream);
closeSilently(outputStream);
}
}
private static void copyStream(InputStream is, OutputStream os) throws IOException {
int read;
byte[] buffer = new byte[1024 * 1024];
while ((read = is.read(buffer)) > 0) {
os.write(buffer, 0, read);
}
}
private static void closeSilently(Closeable closeable) {
if(closeable == null) {
return;
}
try {
closeable.close();
} catch (IOException ex) {}
}
}
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