/*******************************************************************************
* Copyright (c) 2006, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - Initial API and implementation (Corey Ashford)
* Anton Leherbauer (Wind River Systems)
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.eclipse.cdt.core.CCorePlugin;
import org.osgi.framework.Bundle;
/**
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public final class Platform {
// This class duplicates all of the methods in org.eclipse.core.runtime.Platform
// that are used by the CDT. getOSArch() needs a few tweaks because the value returned
// by org.eclipse.core.runtime.Platform.getOSArch represents what the JVM thinks the
// architecture is. In some cases, we may actually be running on a 64-bit machine,
// but the JVM thinks it's running on a 32-bit machine. Without this change, the CDT
// will not handle 64-bit executables on some ppc64. This method could easily be
// extended to handle other platforms with similar issues.
//
// Unfortunately, the org.eclipse.core.runtime.Platform is final, so we cannot just
// extend it and and then override the getOSArch method, so getBundle and getOS just
// encapsulate calls to the same methods in org.eclipse.core.runtime.Platform.
public static final String OS_LINUX = org.eclipse.core.runtime.Platform.OS_LINUX;
private static String cachedArch = null;
public static Bundle getBundle(String symbolicName) {
return org.eclipse.core.runtime.Platform.getBundle(symbolicName);
}
public static String getOS() {
return org.eclipse.core.runtime.Platform.getOS();
}
public static String getOSArch() {
if (cachedArch == null) {
String arch = org.eclipse.core.runtime.Platform.getOSArch();
if (arch.equals(org.eclipse.core.runtime.Platform.ARCH_PPC)) {
// Determine if the platform is actually a ppc64 machine
Process unameProcess;
String cmd[] = {"uname", "-p"}; //$NON-NLS-1$//$NON-NLS-2$
try {
unameProcess = Runtime.getRuntime().exec(cmd);
InputStreamReader inputStreamReader = new InputStreamReader(unameProcess.getInputStream());
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String unameOutput= bufferedReader.readLine();
if (unameOutput != null) {
arch= unameOutput;
}
bufferedReader.close();
unameProcess.waitFor(); // otherwise the process becomes a zombie
} catch (IOException e) {
CCorePlugin.log(e);
} catch (InterruptedException exc) {
// restore interrupted flag
Thread.currentThread().interrupt();
}
} else if (arch.equals(org.eclipse.core.runtime.Platform.ARCH_X86)) {
// Determine if the platform is actually a x86_64 machine
Process unameProcess;
String cmd[];
if (org.eclipse.core.runtime.Platform.OS_WIN32.equals(getOS())) {
cmd = new String[] {"cmd", "/d", "/c", "set", "PROCESSOR_ARCHITECTURE"}; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
} else {
// We don't use "uname -p" since it returns "unknown" on some Linux systems.
cmd = new String[] {"uname", "-m"}; //$NON-NLS-1$//$NON-NLS-2$
}
try {
unameProcess = Runtime.getRuntime().exec(cmd);
unameProcess.getOutputStream().close();
unameProcess.getErrorStream().close();
InputStreamReader inputStreamReader = new InputStreamReader(unameProcess.getInputStream());
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String unameOutput = bufferedReader.readLine();
if (unameOutput != null && unameOutput.endsWith("64")) { //$NON-NLS-1$
arch= org.eclipse.core.runtime.Platform.ARCH_X86_64;
}
bufferedReader.close();
unameProcess.waitFor(); // otherwise the process becomes a zombie
} catch (IOException e) {
CCorePlugin.log(e);
} catch (InterruptedException exc) {
// restore interrupted flag
Thread.currentThread().interrupt();
}
}
cachedArch= arch;
}
return cachedArch;
}
}