1 /* 2 * Copyright (c) 2019, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 18 * or visit www.oracle.com if you need additional information or have any 19 * questions. 20 * 21 */ 22 23 #include "precompiled.hpp" 24 #include "gc/shenandoah/shenandoahNormalMode.hpp" 25 #include "gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp" 26 #include "gc/shenandoah/heuristics/shenandoahAggressiveHeuristics.hpp" 27 #include "gc/shenandoah/heuristics/shenandoahCompactHeuristics.hpp" 28 #include "gc/shenandoah/heuristics/shenandoahStaticHeuristics.hpp" 29 #include "logging/log.hpp" 30 #include "logging/logTag.hpp" 31 32 void ShenandoahNormalMode::initialize_flags() const { 33 SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent); 34 SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent); 35 36 // Final configuration checks 37 SHENANDOAH_CHECK_FLAG_SET(ShenandoahLoadRefBarrier); 38 SHENANDOAH_CHECK_FLAG_SET(ShenandoahSATBBarrier); 39 SHENANDOAH_CHECK_FLAG_SET(ShenandoahKeepAliveBarrier); 40 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCASBarrier); 41 SHENANDOAH_CHECK_FLAG_SET(ShenandoahCloneBarrier); 42 } 43 44 ShenandoahHeuristics* ShenandoahNormalMode::initialize_heuristics() const { 45 if (ShenandoahGCHeuristics != NULL) { 46 if (strcmp(ShenandoahGCHeuristics, "aggressive") == 0) { 47 return new ShenandoahAggressiveHeuristics(); 48 } else if (strcmp(ShenandoahGCHeuristics, "static") == 0) { 49 return new ShenandoahStaticHeuristics(); 50 } else if (strcmp(ShenandoahGCHeuristics, "adaptive") == 0) { 51 return new ShenandoahAdaptiveHeuristics(); 52 } else if (strcmp(ShenandoahGCHeuristics, "compact") == 0) { 53 return new ShenandoahCompactHeuristics(); 54 } else { 55 vm_exit_during_initialization("Unknown -XX:ShenandoahGCHeuristics option"); 56 } 57 } 58 ShouldNotReachHere(); 59 return NULL; 60 }