Mercurial > hg > truffle
comparison agent/src/share/classes/sun/jvm/hotspot/runtime/sparc/SPARCFrame.java @ 6725:da91efe96a93
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 |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | 1d7922586cf6 |
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6724:36d1d483d5d6 | 6725:da91efe96a93 |
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1 /* | 1 /* |
2 * Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2000, 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. |
421 } | 421 } |
422 if (getFP().addOffsetTo(INTERPRETER_FRAME_VM_LOCAL_WORDS * VM.getVM().getAddressSize()).lessThan(getSP())) { | 422 if (getFP().addOffsetTo(INTERPRETER_FRAME_VM_LOCAL_WORDS * VM.getVM().getAddressSize()).lessThan(getSP())) { |
423 return false; | 423 return false; |
424 } | 424 } |
425 | 425 |
426 OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); | 426 Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0); |
427 | 427 |
428 if (VM.getVM().getObjectHeap().isValidMethod(methodHandle) == false) { | 428 if (VM.getVM().getObjectHeap().isValidMethod(methodHandle) == false) { |
429 return false; | 429 return false; |
430 } | 430 } |
431 | 431 |
442 // figure out how to express this. | 442 // figure out how to express this. |
443 Address bcx = addressOfInterpreterFrameBCX().getAddressAt(0); | 443 Address bcx = addressOfInterpreterFrameBCX().getAddressAt(0); |
444 | 444 |
445 Method method; | 445 Method method; |
446 try { | 446 try { |
447 method = (Method) VM.getVM().getObjectHeap().newOop(methodHandle); | 447 method = (Method)Metadata.instantiateWrapperFor(methodHandle); |
448 } catch (UnknownOopException ex) { | 448 } catch (UnknownOopException ex) { |
449 return false; | 449 return false; |
450 } | 450 } |
451 int bci = bcpToBci(bcx, method); | 451 int bci = bcpToBci(bcx, method); |
452 //validate bci | 452 //validate bci |
742 // }; | 742 // }; |
743 // | 743 // |
744 // private: | 744 // private: |
745 // | 745 // |
746 // // where LcpoolCache is saved: | 746 // // where LcpoolCache is saved: |
747 // constantPoolCacheOop* interpreter_frame_cpoolcache_addr() const { | 747 // ConstantPoolCache** interpreter_frame_cpoolcache_addr() const { |
748 // return (constantPoolCacheOop*)sp_addr_at( LcpoolCache.sp_offset_in_saved_window()); | 748 // return (ConstantPoolCache**)sp_addr_at( LcpoolCache.sp_offset_in_saved_window()); |
749 // } | 749 // } |
750 // | 750 // |
751 // // where Lmonitors is saved: | 751 // // where Lmonitors is saved: |
752 // BasicObjectLock** interpreter_frame_monitors_addr() const { | 752 // BasicObjectLock** interpreter_frame_monitors_addr() const { |
753 // return (BasicObjectLock**) sp_addr_at( Lmonitors.sp_offset_in_saved_window()); | 753 // return (BasicObjectLock**) sp_addr_at( Lmonitors.sp_offset_in_saved_window()); |
785 public int getInterpreterFrameBCI() { | 785 public int getInterpreterFrameBCI() { |
786 // FIXME: this is not atomic with respect to GC and is unsuitable | 786 // FIXME: this is not atomic with respect to GC and is unsuitable |
787 // for use in a non-debugging, or reflective, system. Need to | 787 // for use in a non-debugging, or reflective, system. Need to |
788 // figure out how to express this. | 788 // figure out how to express this. |
789 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); | 789 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); |
790 OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); | 790 Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0); |
791 Method method = (Method) VM.getVM().getObjectHeap().newOop(methodHandle); | 791 Method method = (Method)Metadata.instantiateWrapperFor(methodHandle); |
792 return bcpToBci(bcp, method); | 792 return bcpToBci(bcp, method); |
793 } | 793 } |
794 | 794 |
795 public Address addressOfInterpreterFrameExpressionStack() { | 795 public Address addressOfInterpreterFrameExpressionStack() { |
796 return addressOfInterpreterFrameMonitors().addOffsetTo(-1 * VM.getVM().getAddressSize()); | 796 return addressOfInterpreterFrameMonitors().addOffsetTo(-1 * VM.getVM().getAddressSize()); |