1 /*
2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package jdk.test.lib;
25
26 import java.util.regex.Pattern;
27
28 /**
29 * @deprecated This class is deprecated. Use the one from
30 * {@code <root>/test/lib/share/classes/jdk/test/lib}
31 */
32 @Deprecated
33 public class Platform {
34 public static final String vmName = System.getProperty("java.vm.name");
35 public static final String vmInfo = System.getProperty("java.vm.info");
36 private static final String osName = System.getProperty("os.name");
37 private static final String dataModel = System.getProperty("sun.arch.data.model");
38 private static final String vmVersion = System.getProperty("java.vm.version");
39 private static final String jdkDebug = System.getProperty("jdk.debug");
40 private static final String osArch = System.getProperty("os.arch");
41 private static final String userName = System.getProperty("user.name");
42 private static final String compiler = System.getProperty("sun.management.compiler");
43
44 public static boolean isClient() {
45 return vmName.endsWith(" Client VM");
46 }
47
48 public static boolean isServer() {
49 return vmName.endsWith(" Server VM");
50 }
51
52 public static boolean isGraal() {
53 return vmName.endsWith(" Graal VM");
54 }
55
56 public static boolean isZero() {
57 return vmName.endsWith(" Zero VM");
58 }
59
60 public static boolean isMinimal() {
61 return vmName.endsWith(" Minimal VM");
62 }
63
64 public static boolean isTieredSupported() {
65 return compiler.contains("Tiered Compilers");
66 }
67
68 public static boolean isInt() {
69 return vmInfo.contains("interpreted");
70 }
71
72 public static boolean isMixed() {
73 return vmInfo.contains("mixed");
74 }
75
76 public static boolean isComp() {
77 return vmInfo.contains("compiled");
78 }
79
80 public static boolean is32bit() {
81 return dataModel.equals("32");
82 }
83
84 public static boolean is64bit() {
85 return dataModel.equals("64");
86 }
87
88 public static boolean isAix() {
89 return isOs("aix");
90 }
91
92 public static boolean isLinux() {
93 return isOs("linux");
94 }
95
96 public static boolean isOSX() {
97 return isOs("mac");
98 }
99
100 public static boolean isSolaris() {
101 return isOs("sunos");
102 }
103
104 public static boolean isWindows() {
105 return isOs("win");
106 }
107
108 private static boolean isOs(String osname) {
109 return osName.toLowerCase().startsWith(osname.toLowerCase());
110 }
111
112 public static String getOsName() {
113 return osName;
114 }
115
116 public static boolean isDebugBuild() {
117 return (jdkDebug.toLowerCase().contains("debug"));
118 }
119
120 public static String getVMVersion() {
121 return vmVersion;
122 }
123
124 // Returns true for sparc and sparcv9.
125 public static boolean isSparc() {
126 return isArch("sparc.*");
127 }
128
129 public static boolean isARM() {
130 return isArch("arm.*");
131 }
132
133 public static boolean isPPC() {
134 return isArch("ppc.*");
135 }
136
137 public static boolean isX86() {
138 // On Linux it's 'i386', Windows 'x86' without '_64' suffix.
139 return isArch("(i386)|(x86(?!_64))");
140 }
141
142 public static boolean isX64() {
143 // On OSX it's 'x86_64' and on other (Linux, Windows and Solaris) platforms it's 'amd64'
144 return isArch("(amd64)|(x86_64)");
145 }
146
147 public static boolean isAArch64() {
148 return isArch("aarch64");
149 }
150
151 private static boolean isArch(String archnameRE) {
152 return Pattern.compile(archnameRE, Pattern.CASE_INSENSITIVE)
153 .matcher(osArch)
154 .matches();
155 }
156
157 public static String getOsArch() {
158 return osArch;
159 }
160
161 /**
162 * Return a boolean for whether we expect to be able to attach
163 * the SA to our own processes on this system.
164 */
165 public static boolean shouldSAAttach() throws Exception {
166
167 if (isAix()) {
168 return false; // SA not implemented.
169 } else if (isLinux()) {
170 return canPtraceAttachLinux();
171 } else if (isOSX()) {
172 return canAttachOSX();
173 } else {
174 // Other platforms expected to work:
175 return true;
176 }
177 }
178
179 /**
180 * On Linux, first check the SELinux boolean "deny_ptrace" and return false
181 * as we expect to be denied if that is "1". Then expect permission to attach
182 * if we are root, so return true. Then return false for an expected denial
183 * if "ptrace_scope" is 1, and true otherwise.
184 */
185 public static boolean canPtraceAttachLinux() throws Exception {
186
187 // SELinux deny_ptrace:
188 String deny_ptrace = Utils.fileAsString("/sys/fs/selinux/booleans/deny_ptrace");
189 if (deny_ptrace != null && deny_ptrace.contains("1")) {
190 // ptrace will be denied:
191 return false;
192 }
193
194 if (userName.equals("root")) {
195 return true;
196 }
197
198 // ptrace_scope:
199 String ptrace_scope = Utils.fileAsString("/proc/sys/kernel/yama/ptrace_scope");
200 if (ptrace_scope != null && ptrace_scope.contains("1")) {
201 // ptrace will be denied:
202 return false;
203 }
204
205 // Otherwise expect to be permitted:
206 return true;
207 }
208
209 /**
210 * On OSX, expect permission to attach only if we are root.
211 */
212 public static boolean canAttachOSX() throws Exception {
213 return userName.equals("root");
214 }
215
216 /**
217 * return path to library inside jdk tree
218 */
219 public static String jdkLibPath() {
220 if (isWindows()) {
221 return "bin";
222 }
223 if (isOSX()) {
224 return "lib";
225 }
226
227 return "lib/" + getOsArch();
228 }
229
230 /**
231 * Build name of shared object according to platform rules
232 */
233 public static String sharedObjectName(String name) {
234 if (isWindows()) {
235 return name + ".dll";
236 }
237 if (isOSX()) {
238 return "lib" + name + ".dylib";
239 }
240 return "lib" + name + ".so";
241 }
242 }