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comparison agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86Frame.java @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 1d7922586cf6
children
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2001, 2006, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
450 public int getInterpreterFrameBCI() { 450 public int getInterpreterFrameBCI() {
451 // FIXME: this is not atomic with respect to GC and is unsuitable 451 // FIXME: this is not atomic with respect to GC and is unsuitable
452 // for use in a non-debugging, or reflective, system. Need to 452 // for use in a non-debugging, or reflective, system. Need to
453 // figure out how to express this. 453 // figure out how to express this.
454 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); 454 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0);
455 OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); 455 Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0);
456 Method method = (Method) VM.getVM().getObjectHeap().newOop(methodHandle); 456 Method method = (Method)Metadata.instantiateWrapperFor(methodHandle);
457 return bcpToBci(bcp, method); 457 return bcpToBci(bcp, method);
458 } 458 }
459 459
460 public Address addressOfInterpreterFrameMDX() { 460 public Address addressOfInterpreterFrameMDX() {
461 return addressOfStackSlot(INTERPRETER_FRAME_MDX_OFFSET); 461 return addressOfStackSlot(INTERPRETER_FRAME_MDX_OFFSET);