1 /*
2 * Copyright (c) 2013, 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 */
36 if (!Platform.is64bit()) {
37 System.out.println("ObjectAlignmentInBytes for CDS is only " +
38 "supported on 64bit platforms; this plaform is " +
39 nativeWordSize);
40 System.out.println("Skipping the test");
41 } else {
42 dumpAndLoadSharedArchive(8);
43 dumpAndLoadSharedArchive(16);
44 dumpAndLoadSharedArchive(32);
45 dumpAndLoadSharedArchive(64);
46 }
47 }
48
49 private static void
50 dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
51 String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
52 + objectAlignmentInBytes;
53 System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = "
54 + objectAlignmentInBytes);
55
56 // create shared archive
57 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
58 "-XX:+UnlockDiagnosticVMOptions",
59 "-XX:SharedArchiveFile=./sample.jsa",
60 "-Xshare:dump",
61 objectAlignmentArg);
62
63 OutputAnalyzer output = new OutputAnalyzer(pb.start());
64 output.shouldContain("Loading classes to share");
65 output.shouldHaveExitValue(0);
66
67
68 // run using the shared archive
69 pb = ProcessTools.createJavaProcessBuilder(
70 "-XX:+UnlockDiagnosticVMOptions",
71 "-XX:SharedArchiveFile=./sample.jsa",
72 "-Xshare:on",
73 objectAlignmentArg,
74 "-version");
75
76 output = new OutputAnalyzer(pb.start());
77
78 try {
79 output.shouldContain("sharing");
80 output.shouldHaveExitValue(0);
81 } catch (RuntimeException e) {
82 // CDS uses absolute addresses for performance.
83 // It will try to reserve memory at a specific address;
84 // there is a chance such reservation will fail
85 // If it does, it is NOT considered a failure of the feature,
86 // rather a possible expected outcome, though not likely
87 output.shouldContain("Unable to use shared archive");
88 output.shouldHaveExitValue(1);
89 }
90 }
91 }
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1 /*
2 * Copyright (c) 2013, 2015, 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 */
36 if (!Platform.is64bit()) {
37 System.out.println("ObjectAlignmentInBytes for CDS is only " +
38 "supported on 64bit platforms; this plaform is " +
39 nativeWordSize);
40 System.out.println("Skipping the test");
41 } else {
42 dumpAndLoadSharedArchive(8);
43 dumpAndLoadSharedArchive(16);
44 dumpAndLoadSharedArchive(32);
45 dumpAndLoadSharedArchive(64);
46 }
47 }
48
49 private static void
50 dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
51 String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
52 + objectAlignmentInBytes;
53 System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = "
54 + objectAlignmentInBytes);
55
56 String filename = "./CdsSameObjectAlignment" + objectAlignmentInBytes + ".jsa";
57 // create shared archive
58 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
59 "-XX:+UnlockDiagnosticVMOptions",
60 "-XX:SharedArchiveFile=" + filename,
61 "-Xshare:dump",
62 objectAlignmentArg);
63
64 OutputAnalyzer output = new OutputAnalyzer(pb.start());
65 output.shouldContain("Loading classes to share");
66 output.shouldHaveExitValue(0);
67
68
69 // run using the shared archive
70 pb = ProcessTools.createJavaProcessBuilder(
71 "-XX:+UnlockDiagnosticVMOptions",
72 "-XX:SharedArchiveFile=" + filename,
73 "-Xshare:on",
74 objectAlignmentArg,
75 "-version");
76
77 output = new OutputAnalyzer(pb.start());
78
79 try {
80 output.shouldContain("sharing");
81 output.shouldHaveExitValue(0);
82 } catch (RuntimeException e) {
83 // CDS uses absolute addresses for performance.
84 // It will try to reserve memory at a specific address;
85 // there is a chance such reservation will fail
86 // If it does, it is NOT considered a failure of the feature,
87 // rather a possible expected outcome, though not likely
88 output.shouldContain("Unable to use shared archive");
89 output.shouldHaveExitValue(1);
90 }
91 }
92 }
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