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8202151: [BACKOUT] Split globals.hpp to factor out the Flag class

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Backed out JDK-8081519

Reviewed-by: kvn
This commit is contained in:
Gerard Ziemski 2018-04-23 14:51:16 -05:00
parent d1f838a285
commit 816e2e5fe0
66 changed files with 2966 additions and 3060 deletions
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144
src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
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@ -1,144 +0,0 @@
/*
* Copyright (c) 2015, 2017, 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.
*
*/
#include "precompiled.hpp"
#include "runtime/arguments.hpp"
#include "runtime/flags/jvmFlag.hpp"
#include "runtime/flags/jvmFlagConstraintsRuntime.hpp"
#include "runtime/flags/jvmFlagRangeList.hpp"
#include "runtime/globals.hpp"
#include "runtime/safepointMechanism.hpp"
#include "runtime/task.hpp"
#include "utilities/defaultStream.hpp"
JVMFlag::Error ObjectAlignmentInBytesConstraintFunc(intx value, bool verbose) {
if (!is_power_of_2(value)) {
CommandLineError::print(verbose,
"ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
"power of 2\n",
value);
return JVMFlag::VIOLATES_CONSTRAINT;
}
// In case page size is very small.
if (value >= (intx)os::vm_page_size()) {
CommandLineError::print(verbose,
"ObjectAlignmentInBytes (" INTX_FORMAT ") must be "
"less than page size (" INTX_FORMAT ")\n",
value, (intx)os::vm_page_size());
return JVMFlag::VIOLATES_CONSTRAINT;
}
return JVMFlag::SUCCESS;
}
// Need to enforce the padding not to break the existing field alignments.
// It is sufficient to check against the largest type size.
JVMFlag::Error ContendedPaddingWidthConstraintFunc(intx value, bool verbose) {
if ((value % BytesPerLong) != 0) {
CommandLineError::print(verbose,
"ContendedPaddingWidth (" INTX_FORMAT ") must be "
"a multiple of %d\n",
value, BytesPerLong);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingBulkRebiasThresholdFunc(intx value, bool verbose) {
if (value > BiasedLockingBulkRevokeThreshold) {
CommandLineError::print(verbose,
"BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ") must be "
"less than or equal to BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")\n",
value, BiasedLockingBulkRevokeThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingStartupDelayFunc(intx value, bool verbose) {
if ((value % PeriodicTask::interval_gran) != 0) {
CommandLineError::print(verbose,
"BiasedLockingStartupDelay (" INTX_FORMAT ") must be "
"evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n",
value, PeriodicTask::interval_gran);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingBulkRevokeThresholdFunc(intx value, bool verbose) {
if (value < BiasedLockingBulkRebiasThreshold) {
CommandLineError::print(verbose,
"BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ") must be "
"greater than or equal to BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")\n",
value, BiasedLockingBulkRebiasThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else if ((double)value/(double)BiasedLockingDecayTime > 0.1) {
CommandLineError::print(verbose,
"The ratio of BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")"
" to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
"less than or equal to 0.1\n",
value, BiasedLockingBulkRebiasThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingDecayTimeFunc(intx value, bool verbose) {
if (BiasedLockingBulkRebiasThreshold/(double)value > 0.1) {
CommandLineError::print(verbose,
"The ratio of BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")"
" to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
"less than or equal to 0.1\n",
BiasedLockingBulkRebiasThreshold, value);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose) {
if ((value % PeriodicTask::interval_gran != 0)) {
CommandLineError::print(verbose,
"PerfDataSamplingInterval (" INTX_FORMAT ") must be "
"evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n",
value, PeriodicTask::interval_gran);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error ThreadLocalHandshakesConstraintFunc(bool value, bool verbose) {
if (value) {
if (!SafepointMechanism::supports_thread_local_poll()) {
CommandLineError::print(verbose, "ThreadLocalHandshakes not yet supported on this platform\n");
return JVMFlag::VIOLATES_CONSTRAINT;
}
}
return JVMFlag::SUCCESS;
}