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package sun.jvm.hotspot.utilities;

Provides canonicalized OS and CPU information for the rest of the system.
/** Provides canonicalized OS and CPU information for the rest of the system. */
public class PlatformInfo { /* Returns "solaris" if on Solaris; "win32" if Windows; "linux" if Linux. Used to determine location of dbx and import module, or possible debugger agent on win32. */ public static String getOS() throws UnsupportedPlatformException { String os = System.getProperty("os.name"); if (os.equals("SunOS")) { return "solaris"; } else if (os.equals("Linux")) { return "linux"; } else if (os.equals("FreeBSD")) { return "bsd"; } else if (os.equals("NetBSD")) { return "bsd"; } else if (os.equals("OpenBSD")) { return "bsd"; } else if (os.contains("Darwin") || os.contains("OS X")) { return "darwin"; } else if (os.startsWith("Windows")) { return "win32"; } else { throw new UnsupportedPlatformException("Operating system " + os + " not yet supported"); } } public static boolean knownCPU(String cpu) { final String[] KNOWN = new String[] {"i386", "x86", "x86_64", "amd64", "sparc", "sparcv9", "ppc64", "ppc64le", "aarch64"}; for(String s : KNOWN) { if(s.equals(cpu)) return true; } return false; } /* Returns "sparc" for SPARC based platforms "x86" for x86 based platforms and x86_64 for 64bit x86 based platform. Otherwise returns the value of os.arch. If the value is not recognized as supported, an exception is thrown instead. */ public static String getCPU() throws UnsupportedPlatformException { String cpu = System.getProperty("os.arch"); // Let any additional CPU mangling fire first try { Class pic = Class.forName("sun.jvm.hotspot.utilities.PlatformInfoClosed"); AltPlatformInfo api = (AltPlatformInfo) pic.newInstance(); if (api.knownCPU(cpu)) { return api.getCPU(cpu); } } catch (Exception e) { // Ignored } // Check that CPU is supported if (!knownCPU(cpu)) { throw new UnsupportedPlatformException("CPU type " + cpu + " not yet supported"); } // Tweeks if (cpu.equals("i386")) return "x86"; if (cpu.equals("sparcv9")) return "sparc"; if (cpu.equals("x86_64")) return "amd64"; if (cpu.equals("ppc64le")) return "ppc64"; return cpu; } // this main is invoked from Makefile to make platform specific agent Makefile(s). public static void main(String[] args) { System.out.println(getOS()); } }