author | rbackman |
Tue, 05 May 2015 16:50:25 +0200 | |
changeset 30590 | 14f7f48c1377 |
parent 29571 | 6627b10e05f8 |
permissions | -rw-r--r-- |
28369 | 1 |
/* |
29571
6627b10e05f8
6313046: Remove unused frame::native_param_addr code
mikael
parents:
28369
diff
changeset
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* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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package sun.jvm.hotspot.runtime.ppc64; |
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import java.util.*; |
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import sun.jvm.hotspot.code.*; |
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import sun.jvm.hotspot.compiler.*; |
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import sun.jvm.hotspot.debugger.*; |
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import sun.jvm.hotspot.oops.*; |
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import sun.jvm.hotspot.runtime.*; |
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import sun.jvm.hotspot.types.*; |
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import sun.jvm.hotspot.utilities.*; |
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/** Specialization of and implementation of abstract methods of the |
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Frame class for the ppc64 family of CPUs. */ |
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public class PPC64Frame extends Frame { |
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private static final boolean DEBUG; |
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static { |
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DEBUG = System.getProperty("sun.jvm.hotspot.runtime.ppc64.PPC64Frame.DEBUG") != null; |
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} |
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// All frames |
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private static final int SENDER_SP_OFFSET = 0; |
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// Interpreter frames |
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private static final int INTERPRETER_FRAME_MIRROR_OFFSET = -3; // for native calls only |
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private static final int INTERPRETER_FRAME_SENDER_SP_OFFSET = -4; |
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private static final int INTERPRETER_FRAME_LAST_SP_OFFSET = INTERPRETER_FRAME_SENDER_SP_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_MDX_OFFSET = INTERPRETER_FRAME_LAST_SP_OFFSET -1; |
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private static final int INTERPRETER_FRAME_ESP_OFFSET = INTERPRETER_FRAME_MDX_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_BCX_OFFSET = INTERPRETER_FRAME_ESP_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_CACHE_OFFSET =INTERPRETER_FRAME_BCX_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_MONITORS_OFFSET = INTERPRETER_FRAME_CACHE_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_LOCALS_OFFSET = INTERPRETER_FRAME_MONITORS_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_METHOD_OFFSET = INTERPRETER_FRAME_LOCALS_OFFSET - 1; |
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private static final int INTERPRETER_FRAME_INITIAL_SP_OFFSET = INTERPRETER_FRAME_BCX_OFFSET - 1; // FIXME: probably wrong, but unused anyway |
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private static final int INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET; |
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private static final int INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET; |
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// Entry frames |
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private static int ENTRY_FRAME_CALL_WRAPPER_OFFSET; |
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static { |
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VM.registerVMInitializedObserver(new Observer() { |
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public void update(Observable o, Object data) { |
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initialize(VM.getVM().getTypeDataBase()); |
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} |
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}); |
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} |
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private static synchronized void initialize(TypeDataBase db) { |
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int entry_frame_locals_size = db.lookupIntConstant("frame::entry_frame_locals_size").intValue(); |
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int wordLength = (int) VM.getVM().getAddressSize(); |
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ENTRY_FRAME_CALL_WRAPPER_OFFSET = -entry_frame_locals_size/wordLength; |
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} |
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// an additional field beyond sp and pc: |
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Address raw_fp; // frame pointer |
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private Address raw_unextendedSP; |
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private PPC64Frame() { |
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} |
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private void adjustForDeopt() { |
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if ( pc != null) { |
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// Look for a deopt pc and if it is deopted convert to original pc |
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CodeBlob cb = VM.getVM().getCodeCache().findBlob(pc); |
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if (cb != null && cb.isJavaMethod()) { |
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NMethod nm = (NMethod) cb; |
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if (pc.equals(nm.deoptHandlerBegin())) { |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(this.getUnextendedSP() != null, "null SP in Java frame"); |
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} |
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// adjust pc if frame is deoptimized. |
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pc = this.getUnextendedSP().getAddressAt(nm.origPCOffset()); |
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deoptimized = true; |
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} |
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} |
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} |
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} |
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public PPC64Frame(Address raw_sp, Address raw_fp, Address pc) { |
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this.raw_sp = raw_sp; |
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this.raw_unextendedSP = raw_sp; |
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if (raw_fp == null) { |
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this.raw_fp = raw_sp.getAddressAt(0); |
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} else { |
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this.raw_fp = raw_fp; |
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} |
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if (pc == null) { |
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this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize()); |
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} else { |
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this.pc = pc; |
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} |
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adjustUnextendedSP(); |
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// Frame must be fully constructed before this call |
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adjustForDeopt(); |
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if (DEBUG) { |
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System.out.println("PPC64Frame(sp, fp, pc): " + this); |
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dumpStack(); |
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} |
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} |
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public PPC64Frame(Address raw_sp, Address raw_fp) { |
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this.raw_sp = raw_sp; |
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this.raw_unextendedSP = raw_sp; |
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if (raw_fp == null) { |
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this.raw_fp = raw_sp.getAddressAt(0); |
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} else { |
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this.raw_fp = raw_fp; |
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} |
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this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize()); |
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adjustUnextendedSP(); |
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// Frame must be fully constructed before this call |
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adjustForDeopt(); |
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if (DEBUG) { |
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System.out.println("PPC64Frame(sp, fp): " + this); |
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dumpStack(); |
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} |
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} |
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public PPC64Frame(Address raw_sp, Address raw_unextendedSp, Address raw_fp, Address pc) { |
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this.raw_sp = raw_sp; |
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this.raw_unextendedSP = raw_unextendedSp; |
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if (raw_fp == null) { |
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this.raw_fp = raw_sp.getAddressAt(0); |
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} else { |
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this.raw_fp = raw_fp; |
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} |
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if (pc == null) { |
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this.pc = raw_sp.getAddressAt(2 * VM.getVM().getAddressSize()); |
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} else { |
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this.pc = pc; |
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} |
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adjustUnextendedSP(); |
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// Frame must be fully constructed before this call |
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adjustForDeopt(); |
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if (DEBUG) { |
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System.out.println("PPC64Frame(sp, unextendedSP, fp, pc): " + this); |
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dumpStack(); |
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} |
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} |
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public Object clone() { |
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PPC64Frame frame = new PPC64Frame(); |
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frame.raw_sp = raw_sp; |
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frame.raw_unextendedSP = raw_unextendedSP; |
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frame.raw_fp = raw_fp; |
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frame.pc = pc; |
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frame.deoptimized = deoptimized; |
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return frame; |
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} |
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public boolean equals(Object arg) { |
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if (arg == null) { |
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return false; |
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} |
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if (!(arg instanceof PPC64Frame)) { |
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return false; |
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} |
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PPC64Frame other = (PPC64Frame) arg; |
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return (AddressOps.equal(getSP(), other.getSP()) && |
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AddressOps.equal(getUnextendedSP(), other.getUnextendedSP()) && |
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AddressOps.equal(getFP(), other.getFP()) && |
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AddressOps.equal(getPC(), other.getPC())); |
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} |
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public int hashCode() { |
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if (raw_sp == null) { |
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return 0; |
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} |
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return raw_sp.hashCode(); |
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} |
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public String toString() { |
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return "sp: " + (getSP() == null ? "null" : getSP().toString()) + |
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", unextendedSP: " + (getUnextendedSP() == null ? "null" : getUnextendedSP().toString()) + |
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", fp: " + (getFP() == null ? "null" : getFP().toString()) + |
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", pc: " + (pc == null ? "null" : pc.toString()); |
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} |
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// accessors for the instance variables |
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public Address getFP() { return raw_fp; } |
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public Address getSP() { return raw_sp; } |
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public Address getID() { return raw_sp; } |
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// FIXME: not implemented yet (should be done for Solaris/PPC64) |
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public boolean isSignalHandlerFrameDbg() { return false; } |
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public int getSignalNumberDbg() { return 0; } |
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public String getSignalNameDbg() { return null; } |
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public boolean isInterpretedFrameValid() { |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(isInterpretedFrame(), "Not an interpreted frame"); |
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} |
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// These are reasonable sanity checks |
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if (getFP() == null || getFP().andWithMask(0x3) != null) { |
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return false; |
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} |
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if (getSP() == null || getSP().andWithMask(0x3) != null) { |
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return false; |
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} |
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// These are hacks to keep us out of trouble. |
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// The problem with these is that they mask other problems |
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if (getFP().lessThanOrEqual(getSP())) { |
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// this attempts to deal with unsigned comparison above |
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return false; |
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} |
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if (getFP().minus(getSP()) > 4096 * VM.getVM().getAddressSize()) { |
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// stack frames shouldn't be large. |
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return false; |
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} |
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return true; |
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} |
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// FIXME: not applicable in current system |
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// void patch_pc(Thread* thread, address pc); |
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public Frame sender(RegisterMap regMap, CodeBlob cb) { |
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PPC64RegisterMap map = (PPC64RegisterMap) regMap; |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(map != null, "map must be set"); |
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} |
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// Default is we done have to follow them. The sender_for_xxx will |
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// update it accordingly |
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map.setIncludeArgumentOops(false); |
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if (isEntryFrame()) return senderForEntryFrame(map); |
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if (isInterpretedFrame()) return senderForInterpreterFrame(map); |
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if(cb == null) { |
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cb = VM.getVM().getCodeCache().findBlob(getPC()); |
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} else { |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(cb.equals(VM.getVM().getCodeCache().findBlob(getPC())), "Must be the same"); |
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} |
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} |
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if (cb != null) { |
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return senderForCompiledFrame(map, cb); |
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} |
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// Must be native-compiled frame, i.e. the marshaling code for native |
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// methods that exists in the core system. |
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return new PPC64Frame(getSenderSP(), getLink(), getSenderPC()); |
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} |
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private Frame senderForEntryFrame(PPC64RegisterMap map) { |
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if (DEBUG) { |
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System.out.println("senderForEntryFrame"); |
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} |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(map != null, "map must be set"); |
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} |
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// Java frame called from C; skip all C frames and return top C |
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// frame of that chunk as the sender |
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PPC64JavaCallWrapper jcw = (PPC64JavaCallWrapper) getEntryFrameCallWrapper(); |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(!entryFrameIsFirst(), "next Java fp must be non zero"); |
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Assert.that(jcw.getLastJavaSP().greaterThan(getSP()), "must be above this frame on stack"); |
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} |
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PPC64Frame fr; |
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if (jcw.getLastJavaPC() != null) { |
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fr = new PPC64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP(), jcw.getLastJavaPC()); |
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} else { |
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fr = new PPC64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP()); |
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} |
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map.clear(); |
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if (Assert.ASSERTS_ENABLED) { |
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Assert.that(map.getIncludeArgumentOops(), "should be set by clear"); |
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} |
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return fr; |
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} |
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//------------------------------------------------------------------------------ |
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// frame::adjust_unextended_sp |
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private void adjustUnextendedSP() { |
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raw_unextendedSP = getFP(); |
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} |
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private Frame senderForInterpreterFrame(PPC64RegisterMap map) { |
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if (DEBUG) { |
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System.out.println("senderForInterpreterFrame"); |
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} |
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Address unextendedSP = addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0); |
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Address sp = getSenderSP(); |
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return new PPC64Frame(sp, unextendedSP, getLink(), getSenderPC()); |
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} |
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private Frame senderForCompiledFrame(PPC64RegisterMap map, CodeBlob cb) { |
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if (DEBUG) { |
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System.out.println("senderForCompiledFrame"); |
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} |
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// |
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// NOTE: some of this code is (unfortunately) duplicated in PPC64CurrentFrameGuess |
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// |
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341 |
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342 |
if (Assert.ASSERTS_ENABLED) { |
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Assert.that(map != null, "map must be set"); |
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} |
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345 |
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// frame owned by optimizing compiler |
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347 |
if (Assert.ASSERTS_ENABLED) { |
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Assert.that(cb.getFrameSize() >= 0, "must have non-zero frame size"); |
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} |
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Address senderSP = getSenderSP(); |
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Address senderPC = getSenderPC(); |
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if (map.getUpdateMap()) { |
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// Tell GC to use argument oopmaps for some runtime stubs that need it. |
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// For C1, the runtime stub might not have oop maps, so set this flag |
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// outside of update_register_map. |
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358 |
map.setIncludeArgumentOops(cb.callerMustGCArguments()); |
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359 |
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360 |
if (cb.getOopMaps() != null) { |
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30590 | 361 |
ImmutableOopMapSet.updateRegisterMap(this, cb, map, true); |
28369 | 362 |
} |
363 |
} |
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364 |
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365 |
return new PPC64Frame(senderSP, getLink(), senderPC); |
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366 |
} |
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367 |
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368 |
protected boolean hasSenderPD() { |
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// FIXME |
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370 |
return true; |
|
371 |
} |
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372 |
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373 |
public long frameSize() { |
|
374 |
return (getSenderSP().minus(getSP()) / VM.getVM().getAddressSize()); |
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375 |
} |
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376 |
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377 |
public Address getLink() { |
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378 |
return getSenderSP().getAddressAt(0); |
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379 |
} |
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380 |
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381 |
public Address getUnextendedSP() { return raw_unextendedSP; } |
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382 |
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383 |
// Return address: |
|
384 |
public Address getSenderPC() { return getSenderSP().getAddressAt(2 * VM.getVM().getAddressSize()); } |
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385 |
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386 |
public Address getSenderSP() { return getFP(); } |
|
387 |
public Address addressOfInterpreterFrameLocals() { |
|
388 |
return addressOfStackSlot(INTERPRETER_FRAME_LOCALS_OFFSET); |
|
389 |
} |
|
390 |
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391 |
private Address addressOfInterpreterFrameBCX() { |
|
392 |
return addressOfStackSlot(INTERPRETER_FRAME_BCX_OFFSET); |
|
393 |
} |
|
394 |
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395 |
public int getInterpreterFrameBCI() { |
|
396 |
// FIXME: this is not atomic with respect to GC and is unsuitable |
|
397 |
// for use in a non-debugging, or reflective, system. Need to |
|
398 |
// figure out how to express this. |
|
399 |
Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); |
|
400 |
Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0); |
|
401 |
Method method = (Method)Metadata.instantiateWrapperFor(methodHandle); |
|
402 |
return bcpToBci(bcp, method); |
|
403 |
} |
|
404 |
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405 |
public Address addressOfInterpreterFrameMDX() { |
|
406 |
return addressOfStackSlot(INTERPRETER_FRAME_MDX_OFFSET); |
|
407 |
} |
|
408 |
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409 |
// FIXME |
|
410 |
//inline int frame::interpreter_frame_monitor_size() { |
|
411 |
// return BasicObjectLock::size(); |
|
412 |
//} |
|
413 |
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414 |
// expression stack |
|
415 |
// (the max_stack arguments are used by the GC; see class FrameClosure) |
|
416 |
||
417 |
public Address addressOfInterpreterFrameExpressionStack() { |
|
418 |
Address monitorEnd = interpreterFrameMonitorEnd().address(); |
|
419 |
return monitorEnd.addOffsetTo(-1 * VM.getVM().getAddressSize()); |
|
420 |
} |
|
421 |
||
422 |
public int getInterpreterFrameExpressionStackDirection() { return -1; } |
|
423 |
||
424 |
// top of expression stack |
|
425 |
public Address addressOfInterpreterFrameTOS() { |
|
426 |
return getSP(); |
|
427 |
} |
|
428 |
||
429 |
/** Expression stack from top down */ |
|
430 |
public Address addressOfInterpreterFrameTOSAt(int slot) { |
|
431 |
return addressOfInterpreterFrameTOS().addOffsetTo(slot * VM.getVM().getAddressSize()); |
|
432 |
} |
|
433 |
||
434 |
public Address getInterpreterFrameSenderSP() { |
|
435 |
if (Assert.ASSERTS_ENABLED) { |
|
436 |
Assert.that(isInterpretedFrame(), "interpreted frame expected"); |
|
437 |
} |
|
438 |
return addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0); |
|
439 |
} |
|
440 |
||
441 |
// Monitors |
|
442 |
public BasicObjectLock interpreterFrameMonitorBegin() { |
|
443 |
return new BasicObjectLock(addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET)); |
|
444 |
} |
|
445 |
||
446 |
public BasicObjectLock interpreterFrameMonitorEnd() { |
|
447 |
Address result = addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET).getAddressAt(0); |
|
448 |
if (Assert.ASSERTS_ENABLED) { |
|
449 |
// make sure the pointer points inside the frame |
|
450 |
Assert.that(AddressOps.gt(getFP(), result), "result must < than frame pointer"); |
|
451 |
Assert.that(AddressOps.lte(getSP(), result), "result must >= than stack pointer"); |
|
452 |
} |
|
453 |
return new BasicObjectLock(result); |
|
454 |
} |
|
455 |
||
456 |
public int interpreterFrameMonitorSize() { |
|
457 |
return BasicObjectLock.size(); |
|
458 |
} |
|
459 |
||
460 |
// Method |
|
461 |
public Address addressOfInterpreterFrameMethod() { |
|
462 |
return addressOfStackSlot(INTERPRETER_FRAME_METHOD_OFFSET); |
|
463 |
} |
|
464 |
||
465 |
// Constant pool cache |
|
466 |
public Address addressOfInterpreterFrameCPCache() { |
|
467 |
return addressOfStackSlot(INTERPRETER_FRAME_CACHE_OFFSET); |
|
468 |
} |
|
469 |
||
470 |
// Entry frames |
|
471 |
public JavaCallWrapper getEntryFrameCallWrapper() { |
|
472 |
return new PPC64JavaCallWrapper(addressOfStackSlot(ENTRY_FRAME_CALL_WRAPPER_OFFSET).getAddressAt(0)); |
|
473 |
} |
|
474 |
||
475 |
protected Address addressOfSavedOopResult() { |
|
476 |
// offset is 2 for compiler2 and 3 for compiler1 |
|
477 |
return getSP().addOffsetTo((VM.getVM().isClientCompiler() ? 2 : 3) * |
|
478 |
VM.getVM().getAddressSize()); |
|
479 |
} |
|
480 |
||
481 |
protected Address addressOfSavedReceiver() { |
|
482 |
return getSP().addOffsetTo(-4 * VM.getVM().getAddressSize()); |
|
483 |
} |
|
484 |
||
485 |
private void dumpStack() { |
|
486 |
if (getFP() != null) { |
|
487 |
for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); |
|
488 |
AddressOps.lte(addr, getFP().addOffsetTo(5 * VM.getVM().getAddressSize())); |
|
489 |
addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { |
|
490 |
System.out.println(addr + ": " + addr.getAddressAt(0)); |
|
491 |
} |
|
492 |
} else { |
|
493 |
for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); |
|
494 |
AddressOps.lte(addr, getSP().addOffsetTo(20 * VM.getVM().getAddressSize())); |
|
495 |
addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { |
|
496 |
System.out.println(addr + ": " + addr.getAddressAt(0)); |
|
497 |
} |
|
498 |
} |
|
499 |
} |
|
500 |
} |