1 /*
2 * Copyright (c) 2015, 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
25 #include "precompiled.hpp"
26 #include "runtime/arguments.hpp"
27 #include "runtime/commandLineFlagConstraintsRuntime.hpp"
28 #include "runtime/commandLineFlagRangeList.hpp"
29 #include "runtime/globals.hpp"
30 #include "runtime/task.hpp"
31 #include "utilities/defaultStream.hpp"
32
33 Flag::Error ObjectAlignmentInBytesConstraintFunc(intx value, bool verbose) {
34 if (!is_power_of_2(value)) {
35 CommandLineError::print(verbose,
36 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
37 "power of 2\n",
38 value);
39 return Flag::VIOLATES_CONSTRAINT;
40 }
41 // In case page size is very small.
42 if (value >= (intx)os::vm_page_size()) {
43 CommandLineError::print(verbose,
44 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
45 "less than page size (" INTX_FORMAT ")\n",
46 value, (intx)os::vm_page_size());
47 return Flag::VIOLATES_CONSTRAINT;
48 }
49 return Flag::SUCCESS;
112 "The ratio of BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")"
113 " to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
114 "less than or equal to 0.1\n",
115 BiasedLockingBulkRebiasThreshold, value);
116 return Flag::VIOLATES_CONSTRAINT;
117 } else {
118 return Flag::SUCCESS;
119 }
120 }
121
122 Flag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose) {
123 if ((value % PeriodicTask::interval_gran != 0)) {
124 CommandLineError::print(verbose,
125 "PerfDataSamplingInterval (" INTX_FORMAT ") must be "
126 "evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n",
127 value, PeriodicTask::interval_gran);
128 return Flag::VIOLATES_CONSTRAINT;
129 } else {
130 return Flag::SUCCESS;
131 }
132 }
|
1 /*
2 * Copyright (c) 2015, 2017, 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
25 #include "precompiled.hpp"
26 #include "runtime/arguments.hpp"
27 #include "runtime/commandLineFlagConstraintsRuntime.hpp"
28 #include "runtime/commandLineFlagRangeList.hpp"
29 #include "runtime/globals.hpp"
30 #include "runtime/safepointMechanism.hpp"
31 #include "runtime/task.hpp"
32 #include "utilities/defaultStream.hpp"
33
34 Flag::Error ObjectAlignmentInBytesConstraintFunc(intx value, bool verbose) {
35 if (!is_power_of_2(value)) {
36 CommandLineError::print(verbose,
37 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
38 "power of 2\n",
39 value);
40 return Flag::VIOLATES_CONSTRAINT;
41 }
42 // In case page size is very small.
43 if (value >= (intx)os::vm_page_size()) {
44 CommandLineError::print(verbose,
45 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
46 "less than page size (" INTX_FORMAT ")\n",
47 value, (intx)os::vm_page_size());
48 return Flag::VIOLATES_CONSTRAINT;
49 }
50 return Flag::SUCCESS;
113 "The ratio of BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")"
114 " to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
115 "less than or equal to 0.1\n",
116 BiasedLockingBulkRebiasThreshold, value);
117 return Flag::VIOLATES_CONSTRAINT;
118 } else {
119 return Flag::SUCCESS;
120 }
121 }
122
123 Flag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose) {
124 if ((value % PeriodicTask::interval_gran != 0)) {
125 CommandLineError::print(verbose,
126 "PerfDataSamplingInterval (" INTX_FORMAT ") must be "
127 "evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n",
128 value, PeriodicTask::interval_gran);
129 return Flag::VIOLATES_CONSTRAINT;
130 } else {
131 return Flag::SUCCESS;
132 }
133 }
134
135 Flag::Error ThreadLocalHandshakesConstraintFunc(bool value, bool verbose) {
136 if (value) {
137 if (!SafepointMechanism::supports_thread_local_poll()) {
138 CommandLineError::print(verbose, "ThreadLocalHandshakes not yet supported on this platform\n");
139 return Flag::VIOLATES_CONSTRAINT;
140 }
141 if (UseAOT JVMCI_ONLY(|| EnableJVMCI || UseJVMCICompiler)) {
142 CommandLineError::print(verbose, "ThreadLocalHandshakes not yet supported in combination with AOT or JVMCI\n");
143 return Flag::VIOLATES_CONSTRAINT;
144 }
145 }
146 return Flag::SUCCESS;
147 }
|