Mercurial > hg > graal-jvmci-8
diff agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
author | minqi |
---|---|
date | Mon, 12 Nov 2012 14:03:53 -0800 |
parents | da91efe96a93 |
children | 4a916f2ce331 |
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--- a/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java Fri Nov 09 08:36:17 2012 -0800 +++ b/agent/src/share/classes/sun/jvm/hotspot/oops/InstanceKlass.java Mon Nov 12 14:03:53 2012 -0800 @@ -278,7 +278,7 @@ } public short getFieldGenericSignatureIndex(int index) { - int len = getFields().length(); + // int len = getFields().length(); int allFieldsCount = getAllFieldsCount(); int generic_signature_slot = allFieldsCount * FIELD_SLOTS; for (int i = 0; i < allFieldsCount; i++) { @@ -325,7 +325,7 @@ public KlassArray getTransitiveInterfaces() { return new KlassArray(transitiveInterfaces.getValue(getAddress())); } public int getJavaFieldsCount() { return (int) javaFieldsCount.getValue(this); } public int getAllFieldsCount() { - int len = getFields().length(); + int len = getFields().length(); int allFieldsCount = 0; for (; allFieldsCount*FIELD_SLOTS < len; allFieldsCount++) { short flags = getFieldAccessFlags(allFieldsCount); @@ -581,6 +581,19 @@ } } + public Field[] getStaticFields() { + U2Array fields = getFields(); + int length = getJavaFieldsCount(); + ArrayList result = new ArrayList(); + for (int index = 0; index < length; index++) { + Field f = newField(index); + if (f.isStatic()) { + result.add(f); + } + } + return (Field[])result.toArray(new Field[result.size()]); + } + public void iterateNonStaticFields(OopVisitor visitor, Oop obj) { if (getSuper() != null) { ((InstanceKlass) getSuper()).iterateNonStaticFields(visitor, obj); @@ -979,4 +992,84 @@ } return -1; } + + public void dumpReplayData(PrintStream out) { + ConstantPool cp = getConstants(); + + // Try to record related loaded classes + Klass sub = getSubklassKlass(); + while (sub != null) { + if (sub instanceof InstanceKlass) { + out.println("instanceKlass " + sub.getName().asString()); + } + sub = sub.getNextSiblingKlass(); + } + + final int length = (int) cp.getLength(); + out.print("ciInstanceKlass " + getName().asString() + " " + (isLinked() ? 1 : 0) + " " + (isInitialized() ? 1 : 0) + " " + length); + for (int index = 1; index < length; index++) { + out.print(" " + cp.getTags().at(index)); + } + out.println(); + if (isInitialized()) { + Field[] staticFields = getStaticFields(); + for (int i = 0; i < staticFields.length; i++) { + Field f = staticFields[i]; + Oop mirror = getJavaMirror(); + if (f.isFinal() && !f.hasInitialValue()) { + out.print("staticfield " + getName().asString() + " " + + OopUtilities.escapeString(f.getID().getName()) + " " + + f.getFieldType().getSignature().asString() + " "); + if (f instanceof ByteField) { + ByteField bf = (ByteField)f; + out.println(bf.getValue(mirror)); + } else if (f instanceof BooleanField) { + BooleanField bf = (BooleanField)f; + out.println(bf.getValue(mirror) ? 1 : 0); + } else if (f instanceof ShortField) { + ShortField bf = (ShortField)f; + out.println(bf.getValue(mirror)); + } else if (f instanceof CharField) { + CharField bf = (CharField)f; + out.println(bf.getValue(mirror) & 0xffff); + } else if (f instanceof IntField) { + IntField bf = (IntField)f; + out.println(bf.getValue(mirror)); + } else if (f instanceof LongField) { + LongField bf = (LongField)f; + out.println(bf.getValue(mirror)); + } else if (f instanceof FloatField) { + FloatField bf = (FloatField)f; + out.println(Float.floatToRawIntBits(bf.getValue(mirror))); + } else if (f instanceof DoubleField) { + DoubleField bf = (DoubleField)f; + out.println(Double.doubleToRawLongBits(bf.getValue(mirror))); + } else if (f instanceof OopField) { + OopField bf = (OopField)f; + + Oop value = bf.getValue(mirror); + if (value == null) { + out.println("null"); + } else if (value.isInstance()) { + Instance inst = (Instance)value; + if (inst.isA(SystemDictionary.getStringKlass())) { + out.println("\"" + OopUtilities.stringOopToEscapedString(inst) + "\""); + } else { + out.println(inst.getKlass().getName().asString()); + } + } else if (value.isObjArray()) { + ObjArray oa = (ObjArray)value; + Klass ek = (ObjArrayKlass)oa.getKlass(); + out.println(oa.getLength() + " " + ek.getName().asString()); + } else if (value.isTypeArray()) { + TypeArray ta = (TypeArray)value; + out.println(ta.getLength()); + } else { + out.println(value); + } + } + } + } + } + } }