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src/hotspot/share/gc/shared/jvmFlagConstraintsGC.cpp

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rev 60538 : imported patch jep387-misc.patch
   1 /*
   2  * Copyright (c) 2015, 2019, 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  *


 242 
 243 JVMFlag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose) {
 244 #if INCLUDE_G1GC
 245   JVMFlag::Error status = MaxGCPauseMillisConstraintFuncG1(value, verbose);
 246   if (status != JVMFlag::SUCCESS) {
 247     return status;
 248   }
 249 #endif
 250 
 251   return JVMFlag::SUCCESS;
 252 }
 253 
 254 JVMFlag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose) {
 255 #if INCLUDE_G1GC
 256   JVMFlag::Error status = GCPauseIntervalMillisConstraintFuncG1(value, verbose);
 257   if (status != JVMFlag::SUCCESS) {
 258     return status;
 259   }
 260 #endif
 261 
 262   return JVMFlag::SUCCESS;
 263 }
 264 
 265 JVMFlag::Error InitialBootClassLoaderMetaspaceSizeConstraintFunc(size_t value, bool verbose) {
 266   size_t aligned_max = align_down(max_uintx/2, Metaspace::reserve_alignment_words());
 267   if (value > aligned_max) {
 268     JVMFlag::printError(verbose,
 269                         "InitialBootClassLoaderMetaspaceSize (" SIZE_FORMAT ") must be "
 270                         "less than or equal to aligned maximum value (" SIZE_FORMAT ")\n",
 271                         value, aligned_max);
 272     return JVMFlag::VIOLATES_CONSTRAINT;
 273   }
 274   return JVMFlag::SUCCESS;
 275 }
 276 
 277 // To avoid an overflow by 'align_up(value, alignment)'.
 278 static JVMFlag::Error MaxSizeForAlignment(const char* name, size_t value, size_t alignment, bool verbose) {
 279   size_t aligned_max = ((max_uintx - alignment) & ~(alignment-1));
 280   if (value > aligned_max) {
 281     JVMFlag::printError(verbose,
 282                         "%s (" SIZE_FORMAT ") must be "
 283                         "less than or equal to aligned maximum value (" SIZE_FORMAT ")\n",
 284                         name, value, aligned_max);
 285     return JVMFlag::VIOLATES_CONSTRAINT;
 286   }
 287   return JVMFlag::SUCCESS;
 288 }
 289 
 290 static JVMFlag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
 291   size_t heap_alignment;
 292 
 293 #if INCLUDE_G1GC


   1 /*
   2  * Copyright (c) 2015, 2020, 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  *


 242 
 243 JVMFlag::Error MaxGCPauseMillisConstraintFunc(uintx value, bool verbose) {
 244 #if INCLUDE_G1GC
 245   JVMFlag::Error status = MaxGCPauseMillisConstraintFuncG1(value, verbose);
 246   if (status != JVMFlag::SUCCESS) {
 247     return status;
 248   }
 249 #endif
 250 
 251   return JVMFlag::SUCCESS;
 252 }
 253 
 254 JVMFlag::Error GCPauseIntervalMillisConstraintFunc(uintx value, bool verbose) {
 255 #if INCLUDE_G1GC
 256   JVMFlag::Error status = GCPauseIntervalMillisConstraintFuncG1(value, verbose);
 257   if (status != JVMFlag::SUCCESS) {
 258     return status;
 259   }
 260 #endif
 261 












 262   return JVMFlag::SUCCESS;
 263 }
 264 
 265 // To avoid an overflow by 'align_up(value, alignment)'.
 266 static JVMFlag::Error MaxSizeForAlignment(const char* name, size_t value, size_t alignment, bool verbose) {
 267   size_t aligned_max = ((max_uintx - alignment) & ~(alignment-1));
 268   if (value > aligned_max) {
 269     JVMFlag::printError(verbose,
 270                         "%s (" SIZE_FORMAT ") must be "
 271                         "less than or equal to aligned maximum value (" SIZE_FORMAT ")\n",
 272                         name, value, aligned_max);
 273     return JVMFlag::VIOLATES_CONSTRAINT;
 274   }
 275   return JVMFlag::SUCCESS;
 276 }
 277 
 278 static JVMFlag::Error MaxSizeForHeapAlignment(const char* name, size_t value, bool verbose) {
 279   size_t heap_alignment;
 280 
 281 #if INCLUDE_G1GC


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