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 package sun.jvm.hotspot.memory; 26 27 import java.io.*; 28 import java.util.*; 29 import sun.jvm.hotspot.debugger.*; 30 import sun.jvm.hotspot.gc.cms.CMSHeap; 31 import sun.jvm.hotspot.gc.serial.SerialHeap; 32 import sun.jvm.hotspot.gc.shared.*; 33 import sun.jvm.hotspot.gc.g1.G1CollectedHeap; 34 import sun.jvm.hotspot.gc.parallel.*; 35 import sun.jvm.hotspot.oops.*; 36 import sun.jvm.hotspot.types.*; 37 import sun.jvm.hotspot.runtime.*; 38 39 40 public class Universe { 41 private static AddressField collectedHeapField; 42 private static VirtualConstructor heapConstructor; 43 private static sun.jvm.hotspot.types.OopField mainThreadGroupField; 44 private static sun.jvm.hotspot.types.OopField systemThreadGroupField; 45 46 // single dimensional primitive array klasses 47 private static sun.jvm.hotspot.types.AddressField boolArrayKlassField; 48 private static sun.jvm.hotspot.types.AddressField byteArrayKlassField; 49 private static sun.jvm.hotspot.types.AddressField charArrayKlassField; 50 private static sun.jvm.hotspot.types.AddressField intArrayKlassField; 51 private static sun.jvm.hotspot.types.AddressField shortArrayKlassField; 52 private static sun.jvm.hotspot.types.AddressField longArrayKlassField; 53 private static sun.jvm.hotspot.types.AddressField singleArrayKlassField; 54 private static sun.jvm.hotspot.types.AddressField doubleArrayKlassField; 55 56 private static AddressField narrowOopBaseField; 57 private static CIntegerField narrowOopShiftField; 58 private static AddressField narrowKlassBaseField; 59 private static CIntegerField narrowKlassShiftField; 60 61 public enum NARROW_OOP_MODE { 62 UnscaledNarrowOop, 63 ZeroBasedNarrowOop, 64 HeapBasedNarrowOop 65 } 66 67 static { 68 VM.registerVMInitializedObserver(new Observer() { 69 public void update(Observable o, Object data) { 70 initialize(VM.getVM().getTypeDataBase()); 71 } 72 }); 73 } 74 75 private static synchronized void initialize(TypeDataBase db) { 76 Type type = db.lookupType("Universe"); 77 78 collectedHeapField = type.getAddressField("_collectedHeap"); 79 80 heapConstructor = new VirtualConstructor(db); 81 heapConstructor.addMapping("CMSHeap", CMSHeap.class); 82 heapConstructor.addMapping("SerialHeap", SerialHeap.class); 83 heapConstructor.addMapping("ParallelScavengeHeap", ParallelScavengeHeap.class); 84 heapConstructor.addMapping("G1CollectedHeap", G1CollectedHeap.class); 85 86 mainThreadGroupField = type.getOopField("_main_thread_group"); 87 systemThreadGroupField = type.getOopField("_system_thread_group"); 88 89 boolArrayKlassField = type.getAddressField("_boolArrayKlassObj"); 90 byteArrayKlassField = type.getAddressField("_byteArrayKlassObj"); 91 charArrayKlassField = type.getAddressField("_charArrayKlassObj"); 92 intArrayKlassField = type.getAddressField("_intArrayKlassObj"); 93 shortArrayKlassField = type.getAddressField("_shortArrayKlassObj"); 94 longArrayKlassField = type.getAddressField("_longArrayKlassObj"); 95 singleArrayKlassField = type.getAddressField("_singleArrayKlassObj"); 96 doubleArrayKlassField = type.getAddressField("_doubleArrayKlassObj"); 97 98 narrowOopBaseField = type.getAddressField("_narrow_oop._base"); 99 narrowOopShiftField = type.getCIntegerField("_narrow_oop._shift"); 100 narrowKlassBaseField = type.getAddressField("_narrow_klass._base"); 101 narrowKlassShiftField = type.getCIntegerField("_narrow_klass._shift"); 102 103 UniverseExt.initialize(heapConstructor); 104 } | 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 package sun.jvm.hotspot.memory; 26 27 import java.io.PrintStream; 28 import java.util.Observable; 29 import java.util.Observer; 30 31 import sun.jvm.hotspot.debugger.Address; 32 import sun.jvm.hotspot.debugger.OopHandle; 33 import sun.jvm.hotspot.gc.cms.CMSHeap; 34 import sun.jvm.hotspot.gc.g1.G1CollectedHeap; 35 import sun.jvm.hotspot.gc.parallel.ParallelScavengeHeap; 36 import sun.jvm.hotspot.gc.serial.SerialHeap; 37 import sun.jvm.hotspot.gc.shared.CollectedHeap; 38 import sun.jvm.hotspot.gc.z.ZCollectedHeap; 39 import sun.jvm.hotspot.oops.Oop; 40 import sun.jvm.hotspot.runtime.BasicType; 41 import sun.jvm.hotspot.runtime.VM; 42 import sun.jvm.hotspot.runtime.VirtualConstructor; 43 import sun.jvm.hotspot.types.AddressField; 44 import sun.jvm.hotspot.types.CIntegerField; 45 import sun.jvm.hotspot.types.Type; 46 import sun.jvm.hotspot.types.TypeDataBase; 47 48 49 public class Universe { 50 private static AddressField collectedHeapField; 51 private static VirtualConstructor heapConstructor; 52 private static sun.jvm.hotspot.types.OopField mainThreadGroupField; 53 private static sun.jvm.hotspot.types.OopField systemThreadGroupField; 54 55 // single dimensional primitive array klasses 56 private static sun.jvm.hotspot.types.AddressField boolArrayKlassField; 57 private static sun.jvm.hotspot.types.AddressField byteArrayKlassField; 58 private static sun.jvm.hotspot.types.AddressField charArrayKlassField; 59 private static sun.jvm.hotspot.types.AddressField intArrayKlassField; 60 private static sun.jvm.hotspot.types.AddressField shortArrayKlassField; 61 private static sun.jvm.hotspot.types.AddressField longArrayKlassField; 62 private static sun.jvm.hotspot.types.AddressField singleArrayKlassField; 63 private static sun.jvm.hotspot.types.AddressField doubleArrayKlassField; 64 65 private static AddressField narrowOopBaseField; 66 private static CIntegerField narrowOopShiftField; 67 private static AddressField narrowKlassBaseField; 68 private static CIntegerField narrowKlassShiftField; 69 70 public enum NARROW_OOP_MODE { 71 UnscaledNarrowOop, 72 ZeroBasedNarrowOop, 73 HeapBasedNarrowOop 74 } 75 76 static { 77 VM.registerVMInitializedObserver(new Observer() { 78 public void update(Observable o, Object data) { 79 initialize(VM.getVM().getTypeDataBase()); 80 } 81 }); 82 } 83 84 private static boolean typeExists(TypeDataBase db, String type) { 85 try { 86 db.lookupType(type); 87 } catch (RuntimeException e) { 88 return false; 89 } 90 return true; 91 } 92 93 private static void addHeapTypeIfInDB(TypeDataBase db, Class heapClass) { 94 String heapName = heapClass.getSimpleName(); 95 if (typeExists(db, heapName)) { 96 heapConstructor.addMapping(heapName, heapClass); 97 } 98 } 99 100 private static synchronized void initialize(TypeDataBase db) { 101 Type type = db.lookupType("Universe"); 102 103 collectedHeapField = type.getAddressField("_collectedHeap"); 104 105 heapConstructor = new VirtualConstructor(db); 106 addHeapTypeIfInDB(db, CMSHeap.class); 107 addHeapTypeIfInDB(db, SerialHeap.class); 108 addHeapTypeIfInDB(db, ParallelScavengeHeap.class); 109 addHeapTypeIfInDB(db, G1CollectedHeap.class); 110 addHeapTypeIfInDB(db, ZCollectedHeap.class); 111 112 mainThreadGroupField = type.getOopField("_main_thread_group"); 113 systemThreadGroupField = type.getOopField("_system_thread_group"); 114 115 boolArrayKlassField = type.getAddressField("_boolArrayKlassObj"); 116 byteArrayKlassField = type.getAddressField("_byteArrayKlassObj"); 117 charArrayKlassField = type.getAddressField("_charArrayKlassObj"); 118 intArrayKlassField = type.getAddressField("_intArrayKlassObj"); 119 shortArrayKlassField = type.getAddressField("_shortArrayKlassObj"); 120 longArrayKlassField = type.getAddressField("_longArrayKlassObj"); 121 singleArrayKlassField = type.getAddressField("_singleArrayKlassObj"); 122 doubleArrayKlassField = type.getAddressField("_doubleArrayKlassObj"); 123 124 narrowOopBaseField = type.getAddressField("_narrow_oop._base"); 125 narrowOopShiftField = type.getCIntegerField("_narrow_oop._shift"); 126 narrowKlassBaseField = type.getAddressField("_narrow_klass._base"); 127 narrowKlassShiftField = type.getCIntegerField("_narrow_klass._shift"); 128 129 UniverseExt.initialize(heapConstructor); 130 } |