24 25 package sun.jvm.hotspot.code; 26 27 import java.io.*; 28 import java.util.*; 29 30 import sun.jvm.hotspot.debugger.*; 31 import sun.jvm.hotspot.oops.*; 32 import sun.jvm.hotspot.runtime.*; 33 import sun.jvm.hotspot.utilities.*; 34 35 /** ScopeDescs contain the information that makes source-level 36 debugging of nmethods possible; each scopeDesc describes a method 37 activation */ 38 39 public class ScopeDesc { 40 /** NMethod information */ 41 private NMethod code; 42 private Method method; 43 private int bci; 44 /** Decoding offsets */ 45 private int decodeOffset; 46 private int senderDecodeOffset; 47 private int localsDecodeOffset; 48 private int expressionsDecodeOffset; 49 private int monitorsDecodeOffset; 50 /** Scalar replaced bjects pool */ 51 private List objects; // ArrayList<ScopeValue> 52 53 54 public ScopeDesc(NMethod code, int decodeOffset) { 55 this.code = code; 56 this.decodeOffset = decodeOffset; 57 this.objects = decodeObjectValues(DebugInformationRecorder.SERIALIZED_NULL); 58 59 // Decode header 60 DebugInfoReadStream stream = streamAt(decodeOffset); 61 62 senderDecodeOffset = stream.readInt(); 63 method = (Method) VM.getVM().getObjectHeap().newOop(stream.readOopHandle()); 64 bci = stream.readBCI(); 65 // Decode offsets for body and sender 66 localsDecodeOffset = stream.readInt(); 67 expressionsDecodeOffset = stream.readInt(); 68 monitorsDecodeOffset = stream.readInt(); 69 } 70 71 public ScopeDesc(NMethod code, int decodeOffset, int objectDecodeOffset) { 72 this.code = code; 73 this.decodeOffset = decodeOffset; 74 this.objects = decodeObjectValues(objectDecodeOffset); 75 76 // Decode header 77 DebugInfoReadStream stream = streamAt(decodeOffset); 78 79 senderDecodeOffset = stream.readInt(); 80 method = (Method) VM.getVM().getObjectHeap().newOop(stream.readOopHandle()); 81 bci = stream.readBCI(); 82 // Decode offsets for body and sender 83 localsDecodeOffset = stream.readInt(); 84 expressionsDecodeOffset = stream.readInt(); 85 monitorsDecodeOffset = stream.readInt(); 86 } 87 88 public NMethod getNMethod() { return code; } 89 public Method getMethod() { return method; } 90 public int getBCI() { return bci; } 91 92 /** Returns a List<ScopeValue> */ 93 public List getLocals() { 94 return decodeScopeValues(localsDecodeOffset); 95 } 96 97 /** Returns a List<ScopeValue> */ 98 public List getExpressions() { 99 return decodeScopeValues(expressionsDecodeOffset); 100 } 101 102 /** Returns a List<MonitorValue> */ 103 public List getMonitors() { 104 return decodeMonitorValues(monitorsDecodeOffset); 105 } 106 107 /** Returns a List<MonitorValue> */ 108 public List getObjects() { 109 return objects; 110 } 133 return false; 134 } 135 136 if (!(arg instanceof ScopeDesc)) { 137 return false; 138 } 139 140 ScopeDesc sd = (ScopeDesc) arg; 141 142 return (sd.method.equals(method) && (sd.bci == bci)); 143 } 144 145 public void printValue() { 146 printValueOn(System.out); 147 } 148 149 public void printValueOn(PrintStream tty) { 150 tty.print("ScopeDesc for "); 151 method.printValueOn(tty); 152 tty.println(" @bci " + bci); 153 } 154 155 // FIXME: add more accessors 156 157 //-------------------------------------------------------------------------------- 158 // Internals only below this point 159 // 160 161 private DebugInfoReadStream streamAt(int decodeOffset) { 162 return new DebugInfoReadStream(code, decodeOffset, objects); 163 } 164 165 /** Returns a List<ScopeValue> or null if no values were present */ 166 private List decodeScopeValues(int decodeOffset) { 167 if (decodeOffset == DebugInformationRecorder.SERIALIZED_NULL) { 168 return null; 169 } 170 DebugInfoReadStream stream = streamAt(decodeOffset); 171 int length = stream.readInt(); 172 List res = new ArrayList(length); 173 for (int i = 0; i < length; i++) { 174 res.add(ScopeValue.readFrom(stream)); 175 } 176 return res; 177 } 178 179 /** Returns a List<MonitorValue> or null if no values were present */ | 24 25 package sun.jvm.hotspot.code; 26 27 import java.io.*; 28 import java.util.*; 29 30 import sun.jvm.hotspot.debugger.*; 31 import sun.jvm.hotspot.oops.*; 32 import sun.jvm.hotspot.runtime.*; 33 import sun.jvm.hotspot.utilities.*; 34 35 /** ScopeDescs contain the information that makes source-level 36 debugging of nmethods possible; each scopeDesc describes a method 37 activation */ 38 39 public class ScopeDesc { 40 /** NMethod information */ 41 private NMethod code; 42 private Method method; 43 private int bci; 44 private boolean reexecute; 45 /** Decoding offsets */ 46 private int decodeOffset; 47 private int senderDecodeOffset; 48 private int localsDecodeOffset; 49 private int expressionsDecodeOffset; 50 private int monitorsDecodeOffset; 51 /** Scalar replaced bjects pool */ 52 private List objects; // ArrayList<ScopeValue> 53 54 55 public ScopeDesc(NMethod code, int decodeOffset) { 56 this.code = code; 57 this.decodeOffset = decodeOffset; 58 this.objects = decodeObjectValues(DebugInformationRecorder.SERIALIZED_NULL); 59 60 // Decode header 61 DebugInfoReadStream stream = streamAt(decodeOffset); 62 63 senderDecodeOffset = stream.readInt(); 64 method = (Method) VM.getVM().getObjectHeap().newOop(stream.readOopHandle()); 65 setBCIAndReexecute(stream.readInt()); 66 // Decode offsets for body and sender 67 localsDecodeOffset = stream.readInt(); 68 expressionsDecodeOffset = stream.readInt(); 69 monitorsDecodeOffset = stream.readInt(); 70 } 71 72 public ScopeDesc(NMethod code, int decodeOffset, int objectDecodeOffset) { 73 this.code = code; 74 this.decodeOffset = decodeOffset; 75 this.objects = decodeObjectValues(objectDecodeOffset); 76 77 // Decode header 78 DebugInfoReadStream stream = streamAt(decodeOffset); 79 80 senderDecodeOffset = stream.readInt(); 81 method = (Method) VM.getVM().getObjectHeap().newOop(stream.readOopHandle()); 82 setBCIAndReexecute(stream.readInt()); 83 // Decode offsets for body and sender 84 localsDecodeOffset = stream.readInt(); 85 expressionsDecodeOffset = stream.readInt(); 86 monitorsDecodeOffset = stream.readInt(); 87 } 88 89 public NMethod getNMethod() { return code; } 90 public Method getMethod() { return method; } 91 public int getBCI() { return bci; } 92 public boolean getReexecute() {return reexecute;} 93 94 /** Returns a List<ScopeValue> */ 95 public List getLocals() { 96 return decodeScopeValues(localsDecodeOffset); 97 } 98 99 /** Returns a List<ScopeValue> */ 100 public List getExpressions() { 101 return decodeScopeValues(expressionsDecodeOffset); 102 } 103 104 /** Returns a List<MonitorValue> */ 105 public List getMonitors() { 106 return decodeMonitorValues(monitorsDecodeOffset); 107 } 108 109 /** Returns a List<MonitorValue> */ 110 public List getObjects() { 111 return objects; 112 } 135 return false; 136 } 137 138 if (!(arg instanceof ScopeDesc)) { 139 return false; 140 } 141 142 ScopeDesc sd = (ScopeDesc) arg; 143 144 return (sd.method.equals(method) && (sd.bci == bci)); 145 } 146 147 public void printValue() { 148 printValueOn(System.out); 149 } 150 151 public void printValueOn(PrintStream tty) { 152 tty.print("ScopeDesc for "); 153 method.printValueOn(tty); 154 tty.println(" @bci " + bci); 155 tty.println(" reexecute: " + reexecute); 156 } 157 158 // FIXME: add more accessors 159 160 //-------------------------------------------------------------------------------- 161 // Internals only below this point 162 // 163 private void setBCIAndReexecute(int combination) { 164 int InvocationEntryBci = VM.getVM().getInvocationEntryBCI(); 165 bci = (combination >> 1) + InvocationEntryBci; 166 reexecute = (combination & 1)==1 ? true : false; 167 } 168 169 private DebugInfoReadStream streamAt(int decodeOffset) { 170 return new DebugInfoReadStream(code, decodeOffset, objects); 171 } 172 173 /** Returns a List<ScopeValue> or null if no values were present */ 174 private List decodeScopeValues(int decodeOffset) { 175 if (decodeOffset == DebugInformationRecorder.SERIALIZED_NULL) { 176 return null; 177 } 178 DebugInfoReadStream stream = streamAt(decodeOffset); 179 int length = stream.readInt(); 180 List res = new ArrayList(length); 181 for (int i = 0; i < length; i++) { 182 res.add(ScopeValue.readFrom(stream)); 183 } 184 return res; 185 } 186 187 /** Returns a List<MonitorValue> or null if no values were present */ |