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/*
* #%L
* Native library loader for extracting and loading native libraries from Java.
* %%
* Copyright (C) 2010 - 2015 Board of Regents of the University of
* Wisconsin-Madison and Glencoe Software, Inc.
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* #L%
*/
package org.scijava.nativelib;
import java.io.File;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MxSysInfo {
/**
* Find the mx.sysinfo string for the current jvm
*
* Can be overridden by specifying a mx.sysinfo system property
*/
public static String getMxSysInfo() {
final String mxSysInfo = System.getProperty("mx.sysinfo");
return mxSysInfo != null ? mxSysInfo : guessMxSysInfo();
}
/**
* Make a spirited attempt at guessing what the mx.sysinfo for the current jvm
* might be.
*/
public static String guessMxSysInfo() {
final String arch = System.getProperty("os.arch");
final String os = System.getProperty("os.name");
String extra = "unknown";
if ("Linux".equals(os)) {
try {
final String libc_dest = new File("/lib/libc.so.6").getCanonicalPath();
final Matcher libc_m =
Pattern.compile(".*/libc-(\\d+)\\.(\\d+)\\..*").matcher(libc_dest);
if (!libc_m.matches()) throw new IOException(
"libc symlink contains unexpected destination: " + libc_dest);
File libstdcxx_file = new File("/usr/lib/libstdc++.so.6");
if (!libstdcxx_file.exists()) libstdcxx_file =
new File("/usr/lib/libstdc++.so.5");
final String libstdcxx_dest = libstdcxx_file.getCanonicalPath();
final Matcher libstdcxx_m =
Pattern.compile(".*/libstdc\\+\\+\\.so\\.(\\d+)\\.0\\.(\\d+)")
.matcher(libstdcxx_dest);
if (!libstdcxx_m.matches()) throw new IOException(
"libstdc++ symlink contains unexpected destination: " +
libstdcxx_dest);
String cxxver;
if ("5".equals(libstdcxx_m.group(1))) {
cxxver = "5";
}
else if ("6".equals(libstdcxx_m.group(1))) {
final int minor_ver = Integer.parseInt(libstdcxx_m.group(2));
if (minor_ver < 9) {
cxxver = "6";
}
else {
cxxver = "6" + libstdcxx_m.group(2);
}
}
else {
cxxver = libstdcxx_m.group(1) + libstdcxx_m.group(2);
}
extra = "c" + libc_m.group(1) + libc_m.group(2) + "cxx" + cxxver;
}
catch (final IOException e) {
extra = "unknown";
}
}
return arch + "-" + os + "-" + extra;
}
}