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/*
* Copyright (c) 2022, Red Hat, Inc. All rights reserved.
* Copyright (c) 2022, 2023, 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.
*/
/*
* @test
* @library /test/lib /
* @bug 8281467
* @requires vm.flagless
* @requires os.arch=="amd64" | os.arch=="x86_64"
*
* @summary Test large CodeEntryAlignments are accepted
* @run driver compiler.arguments.TestCodeEntryAlignment
*/
package compiler.arguments;
import java.io.IOException;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class TestCodeEntryAlignment {
public static void main(String[] args) throws IOException {
if (args.length == 0) {
driver();
} else {
System.out.println("Pass");
}
}
private static List<String> cmdline(String[] args) {
List<String> r = new ArrayList();
r.addAll(Arrays.asList(args));
r.add("compiler.arguments.TestCodeEntryAlignment");
r.add("run");
return r;
}
public static void shouldPass(String... args) throws IOException {
ProcessBuilder pb = ProcessTools.createLimitedTestJavaProcessBuilder(cmdline(args));
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(0);
}
public static void driver() throws IOException {
for (int align = 16; align < 256; align *= 2) {
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CodeEntryAlignment=" + align
);
}
for (int align = 256; align <= 1024; align *= 2) {
shouldPass(
"-XX:+UnlockExperimentalVMOptions",
"-XX:CodeCacheSegmentSize=" + align,
"-XX:CodeEntryAlignment=" + align
);
}
}
}
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