| /* |
| * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.oracle.java.testlibrary; |
| |
| import java.util.regex.Pattern; |
| |
| import com.oracle.java.testlibrary.Utils; |
| |
| public class Platform { |
| private static final String osName = System.getProperty("os.name"); |
| private static final String dataModel = System.getProperty("sun.arch.data.model"); |
| private static final String vmVersion = System.getProperty("java.vm.version"); |
| private static final String osArch = System.getProperty("os.arch"); |
| private static final String vmName = System.getProperty("java.vm.name"); |
| private static final String userName = System.getProperty("user.name"); |
| |
| public static boolean isClient() { |
| return vmName.endsWith(" Client VM"); |
| } |
| |
| public static boolean isServer() { |
| return vmName.endsWith(" Server VM"); |
| } |
| |
| public static boolean isGraal() { |
| return vmName.endsWith(" Graal VM"); |
| } |
| |
| public static boolean isMinimal() { |
| return vmName.endsWith(" Minimal VM"); |
| } |
| |
| public static boolean isEmbedded() { |
| return vmName.contains("Embedded"); |
| } |
| |
| public static boolean is32bit() { |
| return dataModel.equals("32"); |
| } |
| |
| public static boolean is64bit() { |
| return dataModel.equals("64"); |
| } |
| |
| public static boolean isAix() { |
| return isOs("aix"); |
| } |
| |
| public static boolean isLinux() { |
| return isOs("linux"); |
| } |
| |
| public static boolean isOSX() { |
| return isOs("mac"); |
| } |
| |
| public static boolean isSolaris() { |
| return isOs("sunos"); |
| } |
| |
| public static boolean isWindows() { |
| return isOs("win"); |
| } |
| |
| private static boolean isOs(String osname) { |
| return osName.toLowerCase().startsWith(osname.toLowerCase()); |
| } |
| |
| public static String getOsName() { |
| return osName; |
| } |
| |
| public static boolean isDebugBuild() { |
| return vmVersion.toLowerCase().contains("debug"); |
| } |
| |
| public static String getVMVersion() { |
| return vmVersion; |
| } |
| |
| // Returns true for sparc and sparcv9. |
| public static boolean isSparc() { |
| return isArch("sparc.*"); |
| } |
| |
| public static boolean isARM() { |
| return isArch("arm.*"); |
| } |
| |
| public static boolean isPPC() { |
| return isArch("ppc.*"); |
| } |
| |
| public static boolean isX86() { |
| // On Linux it's 'i386', Windows 'x86' without '_64' suffix. |
| return isArch("(i386)|(x86(?!_64))"); |
| } |
| |
| public static boolean isX64() { |
| // On OSX it's 'x86_64' and on other (Linux, Windows and Solaris) platforms it's 'amd64' |
| return isArch("(amd64)|(x86_64)"); |
| } |
| |
| public static boolean isAArch64() { |
| return isArch("aarch64"); |
| } |
| |
| private static boolean isArch(String archnameRE) { |
| return Pattern.compile(archnameRE, Pattern.CASE_INSENSITIVE) |
| .matcher(osArch) |
| .matches(); |
| } |
| |
| public static String getOsArch() { |
| return osArch; |
| } |
| |
| /** |
| * Return a boolean for whether we expect to be able to attach |
| * the SA to our own processes on this system. |
| */ |
| public static boolean shouldSAAttach() throws Exception { |
| |
| if (isAix()) { |
| return false; // SA not implemented. |
| } else if (isLinux()) { |
| return canPtraceAttachLinux(); |
| } else if (isOSX()) { |
| return canAttachOSX(); |
| } else { |
| // Other platforms expected to work: |
| return true; |
| } |
| } |
| |
| /** |
| * On Linux, first check the SELinux boolean "deny_ptrace" and return false |
| * as we expect to be denied if that is "1". Then expect permission to attach |
| * if we are root, so return true. Then return false for an expected denial |
| * if "ptrace_scope" is 1, and true otherwise. |
| */ |
| public static boolean canPtraceAttachLinux() throws Exception { |
| |
| // SELinux deny_ptrace: |
| String deny_ptrace = Utils.fileAsString("/sys/fs/selinux/booleans/deny_ptrace"); |
| if (deny_ptrace != null && deny_ptrace.contains("1")) { |
| // ptrace will be denied: |
| return false; |
| } |
| |
| if (userName.equals("root")) { |
| return true; |
| } |
| |
| // ptrace_scope: |
| String ptrace_scope = Utils.fileAsString("/proc/sys/kernel/yama/ptrace_scope"); |
| if (ptrace_scope != null && ptrace_scope.contains("1")) { |
| // ptrace will be denied: |
| return false; |
| } |
| |
| // Otherwise expect to be permitted: |
| return true; |
| } |
| |
| /** |
| * On OSX, expect permission to attach only if we are root. |
| */ |
| public static boolean canAttachOSX() throws Exception { |
| return userName.equals("root"); |
| } |
| } |