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/*
* Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution 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.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.gluegen.runtime;
/** Provides information to autogenerated struct accessors about what
kind of data model (32- or 64-bit) is being used by the currently
running process. */
public class CPU {
private static boolean is32Bit;
static {
boolean done=false;
// Try to use Sun's sun.arch.data.model first ..
int bits = 0;
try {
String bitS =
(String) AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
return System.getProperty("sun.arch.data.model");
}
});
if(null!=bitS && bitS.length()>0) {
bits = Integer.parseInt(bitS);
is32Bit = ( 32 == bits );
done = true ;
}
} catch (NumberFormatException nfe) {}
if(!done) {
// We don't seem to need an AccessController.doPrivileged() block
// here as these system properties are visible even to unsigned
// applets
// Note: this code is replicated in StructLayout.java
String os = System.getProperty("os.name").toLowerCase();
String cpu = System.getProperty("os.arch").toLowerCase();
if(!done) {
if ((os.startsWith("windows") && cpu.equals("x86")) ||
(os.startsWith("windows") && cpu.equals("arm")) ||
(os.startsWith("linux") && cpu.equals("i386")) ||
(os.startsWith("linux") && cpu.equals("x86")) ||
(os.startsWith("mac os") && cpu.equals("ppc")) ||
(os.startsWith("mac os") && cpu.equals("i386")) ||
(os.startsWith("darwin") && cpu.equals("ppc")) ||
(os.startsWith("darwin") && cpu.equals("i386")) ||
(os.startsWith("sunos") && cpu.equals("sparc")) ||
(os.startsWith("sunos") && cpu.equals("x86")) ||
(os.startsWith("freebsd") && cpu.equals("i386")) ||
(os.startsWith("hp-ux") && cpu.equals("pa_risc2.0"))) {
is32Bit = true;
done = true;
}
}
if(!done) {
if ((os.startsWith("windows") && cpu.equals("amd64")) ||
(os.startsWith("linux") && cpu.equals("amd64")) ||
(os.startsWith("linux") && cpu.equals("x86_64")) ||
(os.startsWith("linux") && cpu.equals("ia64")) ||
(os.startsWith("mac os") && cpu.equals("x86_64")) ||
(os.startsWith("darwin") && cpu.equals("x86_64")) ||
(os.startsWith("sunos") && cpu.equals("sparcv9")) ||
(os.startsWith("sunos") && cpu.equals("amd64"))) {
is32Bit = false;
done = true;
}
}
if(!done) {
throw new RuntimeException("Please port CPU detection (32/64 bit) to your platform (" + os + "/" + cpu + ")");
}
}
}
public static boolean is32Bit() {
return is32Bit;
}
}
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