Mercurial > hg > graal-jvmci-8
diff agent/src/share/classes/sun/jvm/hotspot/runtime/ia64/IA64Frame.java @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/ia64/IA64Frame.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,481 @@ +/* + * Copyright 2003-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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); + OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); + Method method = (Method) VM.getVM().getObjectHeap().newOop(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)); + } + } + */ + } +}