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comparison agent/src/share/classes/sun/jvm/hotspot/runtime/Frame.java @ 3908:7588156f5cf9

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7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244) Reviewed-by: kvn
author never
date Mon, 05 Sep 2011 17:09:05 -0700
parents c18cbe5936b8
children 1d7922586cf6
comparison
equal deleted inserted replaced
3907:7b5c767f229c 3908:7588156f5cf9
31 import sun.jvm.hotspot.compiler.*; 31 import sun.jvm.hotspot.compiler.*;
32 import sun.jvm.hotspot.c1.*; 32 import sun.jvm.hotspot.c1.*;
33 import sun.jvm.hotspot.debugger.*; 33 import sun.jvm.hotspot.debugger.*;
34 import sun.jvm.hotspot.interpreter.*; 34 import sun.jvm.hotspot.interpreter.*;
35 import sun.jvm.hotspot.oops.*; 35 import sun.jvm.hotspot.oops.*;
36 import sun.jvm.hotspot.runtime.sparc.SPARCFrame;
36 import sun.jvm.hotspot.types.*; 37 import sun.jvm.hotspot.types.*;
37 import sun.jvm.hotspot.utilities.*; 38 import sun.jvm.hotspot.utilities.*;
38 39
39 /** <P> A frame represents a physical stack frame (an activation). 40 /** <P> A frame represents a physical stack frame (an activation).
40 Frames can be C or Java frames, and the Java frames can be 41 Frames can be C or Java frames, and the Java frames can be
72 } 73 }
73 74
74 /** Size of constMethodOopDesc for computing BCI from BCP (FIXME: hack) */ 75 /** Size of constMethodOopDesc for computing BCI from BCP (FIXME: hack) */
75 private static long constMethodOopDescSize; 76 private static long constMethodOopDescSize;
76 77
78 private static int pcReturnOffset;
79
80 public static int pcReturnOffset() {
81 return pcReturnOffset;
82 }
83
77 private static synchronized void initialize(TypeDataBase db) { 84 private static synchronized void initialize(TypeDataBase db) {
78 Type constMethodOopType = db.lookupType("constMethodOopDesc"); 85 Type constMethodOopType = db.lookupType("constMethodOopDesc");
79 // FIXME: not sure whether alignment here is correct or how to 86 // FIXME: not sure whether alignment here is correct or how to
80 // force it (round up to address size?) 87 // force it (round up to address size?)
81 constMethodOopDescSize = constMethodOopType.getSize(); 88 constMethodOopDescSize = constMethodOopType.getSize();
89
90 pcReturnOffset = db.lookupIntConstant("frame::pc_return_offset").intValue();
82 } 91 }
83 92
84 protected int bcpToBci(Address bcp, ConstMethod cm) { 93 protected int bcpToBci(Address bcp, ConstMethod cm) {
85 // bcp will be null for interpreter native methods 94 // bcp will be null for interpreter native methods
86 // in addition depending on where we catch the system the value can 95 // in addition depending on where we catch the system the value can
104 execute. */ 113 execute. */
105 public Address getPC() { return pc; } 114 public Address getPC() { return pc; }
106 public void setPC(Address newpc) { pc = newpc; } 115 public void setPC(Address newpc) { pc = newpc; }
107 public boolean isDeoptimized() { return deoptimized; } 116 public boolean isDeoptimized() { return deoptimized; }
108 117
118 public CodeBlob cb() {
119 return VM.getVM().getCodeCache().findBlob(getPC());
120 }
121
109 public abstract Address getSP(); 122 public abstract Address getSP();
110 public abstract Address getID(); 123 public abstract Address getID();
111 public abstract Address getFP(); 124 public abstract Address getFP();
112 125
113 /** testers -- platform dependent */ 126 /** testers -- platform dependent */
132 } else { 145 } else {
133 return false; 146 return false;
134 } 147 }
135 } 148 }
136 149
150 public boolean isRicochetFrame() {
151 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC());
152 RicochetBlob rcb = VM.getVM().ricochetBlob();
153 return (cb == rcb && rcb != null && rcb.returnsToBounceAddr(getPC()));
154 }
155
137 public boolean isCompiledFrame() { 156 public boolean isCompiledFrame() {
138 if (Assert.ASSERTS_ENABLED) { 157 if (Assert.ASSERTS_ENABLED) {
139 Assert.that(!VM.getVM().isCore(), "noncore builds only"); 158 Assert.that(!VM.getVM().isCore(), "noncore builds only");
140 } 159 }
141 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC()); 160 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC());
142 return (cb != null && cb.isJavaMethod()); 161 return (cb != null && cb.isJavaMethod());
143 } 162 }
144 163
145 public boolean isGlueFrame() { 164 public boolean isRuntimeFrame() {
146 if (Assert.ASSERTS_ENABLED) { 165 if (Assert.ASSERTS_ENABLED) {
147 Assert.that(!VM.getVM().isCore(), "noncore builds only"); 166 Assert.that(!VM.getVM().isCore(), "noncore builds only");
148 } 167 }
149 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC()); 168 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC());
150 if (cb == null) { 169 if (cb == null) {
195 214
196 /** returns the sender, but skips conversion frames */ 215 /** returns the sender, but skips conversion frames */
197 public Frame realSender(RegisterMap map) { 216 public Frame realSender(RegisterMap map) {
198 if (!VM.getVM().isCore()) { 217 if (!VM.getVM().isCore()) {
199 Frame result = sender(map); 218 Frame result = sender(map);
200 while (result.isGlueFrame()) { 219 while (result.isRuntimeFrame() ||
220 result.isRicochetFrame()) {
201 result = result.sender(map); 221 result = result.sender(map);
202 } 222 }
203 return result; 223 return result;
204 } else { 224 } else {
205 return sender(map); 225 return sender(map);
609 private void oopsCodeBlobDo (AddressVisitor oopVisitor, RegisterMap regMap) { 629 private void oopsCodeBlobDo (AddressVisitor oopVisitor, RegisterMap regMap) {
610 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC()); 630 CodeBlob cb = VM.getVM().getCodeCache().findBlob(getPC());
611 if (Assert.ASSERTS_ENABLED) { 631 if (Assert.ASSERTS_ENABLED) {
612 Assert.that(cb != null, "sanity check"); 632 Assert.that(cb != null, "sanity check");
613 } 633 }
634 if (cb == VM.getVM().ricochetBlob()) {
635 oopsRicochetDo(oopVisitor, regMap);
636 }
614 if (cb.getOopMaps() != null) { 637 if (cb.getOopMaps() != null) {
615 OopMapSet.oopsDo(this, cb, regMap, oopVisitor, VM.getVM().isDebugging()); 638 OopMapSet.oopsDo(this, cb, regMap, oopVisitor, VM.getVM().isDebugging());
616 639
617 // FIXME: add in traversal of argument oops (skipping this for 640 // FIXME: add in traversal of argument oops (skipping this for
618 // now until we have the other stuff tested) 641 // now until we have the other stuff tested)
623 646
624 // If we see an activation belonging to a non_entrant nmethod, we mark it. 647 // If we see an activation belonging to a non_entrant nmethod, we mark it.
625 // if (cb->is_nmethod() && ((nmethod *)cb)->is_not_entrant()) { 648 // if (cb->is_nmethod() && ((nmethod *)cb)->is_not_entrant()) {
626 // ((nmethod*)cb)->mark_as_seen_on_stack(); 649 // ((nmethod*)cb)->mark_as_seen_on_stack();
627 // } 650 // }
651 }
652
653 private void oopsRicochetDo (AddressVisitor oopVisitor, RegisterMap regMap) {
654 // XXX Empty for now
628 } 655 }
629 656
630 // FIXME: implement the above routines, plus add 657 // FIXME: implement the above routines, plus add
631 // oops_interpreted_arguments_do and oops_compiled_arguments_do 658 // oops_interpreted_arguments_do and oops_compiled_arguments_do
632 } 659 }