--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/ia64/IA64Frame.java Thu Sep 27 11:26:04 2012 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,481 +0,0 @@
-/*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-package sun.jvm.hotspot.runtime.ia64;
-
-import java.util.*;
-// import sun.jvm.hotspot.asm.ia64.*;
-import sun.jvm.hotspot.code.*;
-import sun.jvm.hotspot.compiler.*;
-import sun.jvm.hotspot.debugger.*;
-import sun.jvm.hotspot.oops.*;
-import sun.jvm.hotspot.runtime.*;
-import sun.jvm.hotspot.types.*;
-import sun.jvm.hotspot.utilities.*;
-
-/** Specialization of and implementation of abstract methods of the
- Frame class for the ia64 family of CPUs. */
-
-public class IA64Frame extends Frame {
- private static final boolean DEBUG = false;
-
- // All frames
-
- // Interpreter frames
-
- // Entry frames
-
- // Native frames
-
- // an additional field beyond sp and pc:
- // Address raw_fp; // frame pointer only 1.4.2
-
- Address iframe;
-
- private IA64Frame() {
- }
-
- public IA64Frame(Address raw_sp, Address iframe, Address pc) {
- this.raw_sp = raw_sp;
- this.iframe = iframe;
- this.pc = pc;
- if (DEBUG) {
- System.err.println("IA64Frame(sp, iframe, pc): " + this);
- dumpStack();
- }
- }
-
- public Object clone() {
- IA64Frame frame = new IA64Frame();
- frame.raw_sp = raw_sp;
- frame.iframe = iframe;
- frame.pc = pc;
- return frame;
- }
-
- public boolean equals(Object arg) {
- if (arg == null) {
- return false;
- }
-
- if (!(arg instanceof IA64Frame)) {
- return false;
- }
-
- IA64Frame other = (IA64Frame) arg;
-
- return (AddressOps.equal(getSP(), other.getSP()) &&
- AddressOps.equal(getIFRAME(), other.getIFRAME()) &&
- AddressOps.equal(getPC(), other.getPC()));
- }
-
- public int hashCode() {
- if (iframe == null) {
- return 0;
- }
-
- return iframe.hashCode();
- }
-
- public String toString() {
- return "sp: " + (getSP() == null? "null" : getSP().toString()) +
- ", iframe: " + (getIFRAME() == null? "null" : getIFRAME().toString()) +
- ", pc: " + (pc == null? "null" : pc.toString());
- }
-
- // accessors for the instance variables
- public Address getFP() { return null; }
- public Address getIFRAME() { return iframe; }
- public Address getSP() { return raw_sp; }
- public Address getID() { return getFP(); }
-
- // FIXME: not implemented yet
- public boolean isSignalHandlerFrameDbg() { return false; }
- public int getSignalNumberDbg() { return 0; }
- public String getSignalNameDbg() { return null; }
-
- // FIXME: do sanity checks
- public boolean isInterpretedFrameValid() {
- return true;
- }
-
- public boolean isInterpretedFrame() { return iframe != null; }
-
-
- // FIXME: not applicable in current system
- // void patch_pc(Thread* thread, address pc);
-
- public Frame sender(RegisterMap regMap, CodeBlob cb) {
-
- if (iframe == null) {
- return null;
- }
-
- cInterpreter fr = new cInterpreter(iframe);
-
- if (fr.prev() == null) {
- Address wrapper = fr.wrapper();
- if ( wrapper == null) {
- return null;
- }
- IA64JavaCallWrapper jcw = new IA64JavaCallWrapper(wrapper);
- Address iprev = jcw.getPrevIFrame();
- if (iprev == null) {
- return null;
- }
- return new IA64Frame(null, iprev, null);
- } else {
- return new IA64Frame(null, fr.prev(), null);
- }
-
- /*
- IA64RegisterMap map = (IA64RegisterMap) regMap;
-
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(map != null, "map must be set");
- }
-
- // Default is we done have to follow them. The sender_for_xxx will
- // update it accordingly
- map.setIncludeArgumentOops(false);
-
- if (isEntryFrame()) return senderForEntryFrame(map);
- if (isInterpretedFrame()) return senderForInterpreterFrame(map);
-
- if (!VM.getVM().isCore()) {
- if(cb == null) {
- cb = VM.getVM().getCodeCache().findBlob(getPC());
- } else {
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(cb.equals(VM.getVM().getCodeCache().findBlob(getPC())), "Must be the same");
- }
- }
-
- if (cb != null) {
- return senderForCompiledFrame(map, cb);
- }
- }
-
- // Must be native-compiled frame, i.e. the marshaling code for native
- // methods that exists in the core system.
- return new IA64Frame(getSenderSP(), getLink(), getSenderPC());
-
- */
- }
-
- private Frame senderForEntryFrame(IA64RegisterMap map) {
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(map != null, "map must be set");
- }
- /*
- // Java frame called from C; skip all C frames and return top C
- // frame of that chunk as the sender
- IA64JavaCallWrapper jcw = (IA64JavaCallWrapper) getEntryFrameCallWrapper();
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(!entryFrameIsFirst(), "next Java fp must be non zero");
- Assert.that(jcw.getLastJavaSP().greaterThan(getSP()), "must be above this frame on stack");
- }
- IA64Frame fr = new IA64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP(), null);
- map.clear();
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(map.getIncludeArgumentOops(), "should be set by clear");
- }
- return fr;
- */
- throw new RuntimeException("senderForEntryFrame NYI");
- }
-
- private Frame senderForInterpreterFrame(IA64RegisterMap map) {
- /*
- Address sp = addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0);
- // We do not need to update the callee-save register mapping because above
- // us is either another interpreter frame or a converter-frame, but never
- // directly a compiled frame.
- return new IA64Frame(sp, getLink(), getSenderPC());
- */
- throw new RuntimeException("senderForInterpreterFrame NYI");
- }
-
- private Frame senderForDeoptimizedFrame(IA64RegisterMap map, CodeBlob cb) {
- // FIXME
- throw new RuntimeException("Deoptimized frames not handled yet");
- }
-
- private Frame senderForCompiledFrame(IA64RegisterMap map, CodeBlob cb) {
- //
- // NOTE: some of this code is (unfortunately) duplicated in IA64CurrentFrameGuess
- //
-
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(map != null, "map must be set");
- }
-
- throw new RuntimeException("senderForCompiledFrame NYI");
-
- /*
-
- // frame owned by optimizing compiler
- Address sender_sp = null;
-
- if (VM.getVM().isClientCompiler()) {
- sender_sp = addressOfStackSlot(SENDER_SP_OFFSET);
- } else {
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(cb.getFrameSize() >= 0, "Compiled by Compiler1: do not use");
- }
- sender_sp = getSP().addOffsetTo(cb.getFrameSize());
- }
-
- // On Intel the return_address is always the word on the stack
- Address sender_pc = sender_sp.getAddressAt(-1 * VM.getVM().getAddressSize());
-
- if (map.getUpdateMap() && cb.getOopMaps() != null) {
- OopMapSet.updateRegisterMap(this, cb, map, true);
- }
-
- Address saved_fp = null;
- if (VM.getVM().isClientCompiler()) {
- saved_fp = getFP().getAddressAt(0);
- } else {
- int llink_offset = cb.getLinkOffset();
- if (llink_offset >= 0) {
- // Restore base-pointer, since next frame might be an interpreter frame.
- Address fp_addr = getSP().addOffsetTo(VM.getVM().getAddressSize() * llink_offset);
- saved_fp = fp_addr.getAddressAt(0);
- }
- }
-
- sender_sp = null ; // sp_addr.getAddressAt(0);
-
- return new IA64Frame(sender_sp, saved_fp, sender_pc);
-
- */
- }
-
- protected boolean hasSenderPD() {
- // FIXME
- return true;
- }
-
- public long frameSize() {
- throw new RuntimeException("frameSize NYI");
- /*
- return (getSenderSP().minus(getSP()) / VM.getVM().getAddressSize());
- */
- }
-
- public Address getLink() {
- throw new RuntimeException("getLink NYI");
- /*
- return addressOfStackSlot(LINK_OFFSET).getAddressAt(0);
- */
- }
-
- // FIXME: not implementable yet
- //inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; }
-
- public Address getUnextendedSP() { return getSP(); }
-
- // Return address:
- /*
- public Address getSenderPCAddr() { return addressOfStackSlot(RETURN_ADDR_OFFSET); }
- */
-
- public Address getSenderPC() { return null; }
-
- /*
- // return address of param, zero origin index.
- public Address getNativeParamAddr(int idx) {
- return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx);
- }
- */
-
- public Address getSenderSP() { return null; }
-
- /*
- public Address compiledArgumentToLocationPD(VMReg reg, RegisterMap regMap, int argSize) {
- if (VM.getVM().isCore() || VM.getVM().isClientCompiler()) {
- throw new RuntimeException("Should not reach here");
- }
-
- return oopMapRegToLocation(reg, regMap);
- }
-
- */
-
- public Address addressOfInterpreterFrameLocals() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return fr.locals();
- }
-
- private Address addressOfInterpreterFrameBCX() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return fr.bcpAddr();
- }
-
- public int getInterpreterFrameBCI() {
- // FIXME: this is not atomic with respect to GC and is unsuitable
- // for use in a non-debugging, or reflective, system. Need to
- // figure out how to express this.
- Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0);
- Address methodHandle = addressOfInterpreterFrameMethod().getAddressAt(0);
- Method method = (Method)Metadata.instantiateWrapperFor(methodHandle);
- return bcpToBci(bcp, method);
- }
-
- public Address addressOfInterpreterFrameMDX() {
- return null;
- }
-
- // FIXME
- //inline int frame::interpreter_frame_monitor_size() {
- // return BasicObjectLock::size();
- //}
-
- // expression stack
- // (the max_stack arguments are used by the GC; see class FrameClosure)
-
- public Address addressOfInterpreterFrameExpressionStack() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return fr.stackBase();
- }
-
- public int getInterpreterFrameExpressionStackDirection() { return -1; }
-
- // top of expression stack
- public Address addressOfInterpreterFrameTOS() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- // tos always points to first free element in c++ interpreter not tos
- return fr.stackBase().addOffsetTo(VM.getVM().getAddressSize());
- }
-
- /** Expression stack from top down */
- public Address addressOfInterpreterFrameTOSAt(int slot) {
- return addressOfInterpreterFrameTOS().addOffsetTo(slot * VM.getVM().getAddressSize());
- }
-
- public Address getInterpreterFrameSenderSP() {
- if (Assert.ASSERTS_ENABLED) {
- Assert.that(isInterpretedFrame(), "interpreted frame expected");
- }
- throw new RuntimeException("getInterpreterFrameSenderSP NYI");
- }
-
- // Monitors
- public BasicObjectLock interpreterFrameMonitorBegin() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return new BasicObjectLock(fr.monitorBase());
- }
-
- public BasicObjectLock interpreterFrameMonitorEnd() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- // Monitors end is just above stack base (2 slots per monitor)
- Address result = fr.stackBase().addOffsetTo(2 * VM.getVM().getAddressSize());
- /*
- if (Assert.ASSERTS_ENABLED) {
- // make sure the pointer points inside the frame
- Assert.that(AddressOps.gt(getFP(), result), "result must < than frame pointer");
- Assert.that(AddressOps.lte(getSP(), result), "result must >= than stack pointer");
- }
- */
- return new BasicObjectLock(result);
- }
-
- public int interpreterFrameMonitorSize() {
- return BasicObjectLock.size();
- }
-
- // Method
- public Address addressOfInterpreterFrameMethod() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return fr.methodAddr();
- }
-
- // Constant pool cache
- public Address addressOfInterpreterFrameCPCache() {
- if (iframe == null) {
- throw new RuntimeException("Not an Interpreter frame");
- }
- cInterpreter fr = new cInterpreter(iframe);
- return fr.constantsAddr();
- }
-
- // Entry frames
- public JavaCallWrapper getEntryFrameCallWrapper() {
- throw new RuntimeException("getEntryFrameCallWrapper NYI");
- }
-
- protected Address addressOfSavedOopResult() {
- throw new RuntimeException("public boolean isInterpretedFrame() NYI");
- /*
- // offset is 2 for compiler2 and 3 for compiler1
- return getSP().addOffsetTo((VM.getVM().isClientCompiler() ? 2 : 3) *
- VM.getVM().getAddressSize());
- */
- }
-
- protected Address addressOfSavedReceiver() {
- throw new RuntimeException("getEntryFrameCallWrapper NYI");
- // return getSP().addOffsetTo(-4 * VM.getVM().getAddressSize());
- }
-
- private void dumpStack() {
- /*
- if (getFP() != null) {
- for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize());
- AddressOps.lte(addr, getFP().addOffsetTo(5 * VM.getVM().getAddressSize()));
- addr = addr.addOffsetTo(VM.getVM().getAddressSize())) {
- System.out.println(addr + ": " + addr.getAddressAt(0));
- }
- } else {
- for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize());
- AddressOps.lte(addr, getSP().addOffsetTo(20 * VM.getVM().getAddressSize()));
- addr = addr.addOffsetTo(VM.getVM().getAddressSize())) {
- System.out.println(addr + ": " + addr.getAddressAt(0));
- }
- }
- */
- }
-}