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annotate agent/src/share/classes/sun/jvm/hotspot/runtime/amd64/AMD64Frame.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime.amd64; | |
| 26 | |
| 27 import java.util.*; | |
| 28 import sun.jvm.hotspot.code.*; | |
| 29 import sun.jvm.hotspot.compiler.*; | |
| 30 import sun.jvm.hotspot.debugger.*; | |
| 31 import sun.jvm.hotspot.oops.*; | |
| 32 import sun.jvm.hotspot.runtime.*; | |
| 33 import sun.jvm.hotspot.types.*; | |
| 34 import sun.jvm.hotspot.utilities.*; | |
| 35 | |
| 36 /** Specialization of and implementation of abstract methods of the | |
| 37 Frame class for the amd64 CPU. */ | |
| 38 | |
| 39 public class AMD64Frame extends Frame { | |
| 40 private static final boolean DEBUG; | |
| 41 static { | |
| 42 DEBUG = System.getProperty("sun.jvm.hotspot.runtime.amd64.AMD64Frame.DEBUG") != null; | |
| 43 } | |
| 44 | |
| 45 // refer to frame_amd64.hpp | |
| 46 private static final int PC_RETURN_OFFSET = 0; | |
| 47 // All frames | |
| 48 private static final int LINK_OFFSET = 0; | |
| 49 private static final int RETURN_ADDR_OFFSET = 1; | |
| 50 private static final int SENDER_SP_OFFSET = 2; | |
| 51 | |
| 52 // Interpreter frames | |
| 53 private static final int INTERPRETER_FRAME_MIRROR_OFFSET = 2; // for native calls only | |
| 54 private static final int INTERPRETER_FRAME_SENDER_SP_OFFSET = -1; | |
| 55 private static final int INTERPRETER_FRAME_LAST_SP_OFFSET = INTERPRETER_FRAME_SENDER_SP_OFFSET - 1; | |
| 56 private static final int INTERPRETER_FRAME_METHOD_OFFSET = INTERPRETER_FRAME_LAST_SP_OFFSET - 1; | |
| 57 private static int INTERPRETER_FRAME_MDX_OFFSET; // Non-core builds only | |
| 58 private static int INTERPRETER_FRAME_CACHE_OFFSET; | |
| 59 private static int INTERPRETER_FRAME_LOCALS_OFFSET; | |
| 60 private static int INTERPRETER_FRAME_BCX_OFFSET; | |
| 61 private static int INTERPRETER_FRAME_INITIAL_SP_OFFSET; | |
| 62 private static int INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET; | |
| 63 private static int INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET; | |
| 64 | |
| 65 // Entry frames | |
| 66 private static final int ENTRY_FRAME_CALL_WRAPPER_OFFSET = -6; | |
| 67 | |
| 68 // Native frames | |
| 69 private static final int NATIVE_FRAME_INITIAL_PARAM_OFFSET = 2; | |
| 70 | |
| 71 static { | |
| 72 VM.registerVMInitializedObserver(new Observer() { | |
| 73 public void update(Observable o, Object data) { | |
| 74 initialize(VM.getVM().getTypeDataBase()); | |
| 75 } | |
| 76 }); | |
| 77 } | |
| 78 | |
| 79 private static synchronized void initialize(TypeDataBase db) { | |
| 80 if (VM.getVM().isCore()) { | |
| 81 INTERPRETER_FRAME_CACHE_OFFSET = INTERPRETER_FRAME_METHOD_OFFSET - 1; | |
| 82 } else { | |
| 83 INTERPRETER_FRAME_MDX_OFFSET = INTERPRETER_FRAME_METHOD_OFFSET - 1; | |
| 84 INTERPRETER_FRAME_CACHE_OFFSET = INTERPRETER_FRAME_MDX_OFFSET - 1; | |
| 85 } | |
| 86 INTERPRETER_FRAME_LOCALS_OFFSET = INTERPRETER_FRAME_CACHE_OFFSET - 1; | |
| 87 INTERPRETER_FRAME_BCX_OFFSET = INTERPRETER_FRAME_LOCALS_OFFSET - 1; | |
| 88 INTERPRETER_FRAME_INITIAL_SP_OFFSET = INTERPRETER_FRAME_BCX_OFFSET - 1; | |
| 89 INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET; | |
| 90 INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET = INTERPRETER_FRAME_INITIAL_SP_OFFSET; | |
| 91 } | |
| 92 | |
| 93 // an additional field beyond sp and pc: | |
| 94 Address raw_fp; // frame pointer | |
| 95 private Address raw_unextendedSP; | |
| 96 | |
| 97 private AMD64Frame() { | |
| 98 } | |
| 99 | |
| 100 private void adjustForDeopt() { | |
| 101 if ( pc != null) { | |
| 102 // Look for a deopt pc and if it is deopted convert to original pc | |
| 103 CodeBlob cb = VM.getVM().getCodeCache().findBlob(pc); | |
| 104 if (cb != null && cb.isJavaMethod()) { | |
| 105 NMethod nm = (NMethod) cb; | |
| 106 if (pc.equals(nm.deoptBegin())) { | |
| 107 // adjust pc if frame is deoptimized. | |
| 108 if (Assert.ASSERTS_ENABLED) { | |
| 109 Assert.that(this.getUnextendedSP() != null, "null SP in Java frame"); | |
| 110 } | |
| 111 pc = this.getUnextendedSP().getAddressAt(nm.origPCOffset()); | |
| 112 deoptimized = true; | |
| 113 } | |
| 114 } | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 public AMD64Frame(Address raw_sp, Address raw_fp, Address pc) { | |
| 119 this.raw_sp = raw_sp; | |
| 120 this.raw_unextendedSP = raw_sp; | |
| 121 this.raw_fp = raw_fp; | |
| 122 this.pc = pc; | |
| 123 | |
| 124 // Frame must be fully constructed before this call | |
| 125 adjustForDeopt(); | |
| 126 | |
| 127 if (DEBUG) { | |
| 128 System.out.println("AMD64Frame(sp, fp, pc): " + this); | |
| 129 dumpStack(); | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 public AMD64Frame(Address raw_sp, Address raw_fp) { | |
| 134 this.raw_sp = raw_sp; | |
| 135 this.raw_unextendedSP = raw_sp; | |
| 136 this.raw_fp = raw_fp; | |
| 137 this.pc = raw_sp.getAddressAt(-1 * VM.getVM().getAddressSize()); | |
| 138 | |
| 139 // Frame must be fully constructed before this call | |
| 140 adjustForDeopt(); | |
| 141 | |
| 142 if (DEBUG) { | |
| 143 System.out.println("AMD64Frame(sp, fp): " + this); | |
| 144 dumpStack(); | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 // This constructor should really take the unextended SP as an arg | |
| 149 // but then the constructor is ambiguous with constructor that takes | |
| 150 // a PC so take an int and convert it. | |
| 151 public AMD64Frame(Address raw_sp, Address raw_fp, long extension) { | |
| 152 this.raw_sp = raw_sp; | |
| 153 if ( raw_sp == null) { | |
| 154 this.raw_unextendedSP = null; | |
| 155 } else { | |
| 156 this.raw_unextendedSP = raw_sp.addOffsetTo(extension); | |
| 157 } | |
| 158 this.raw_fp = raw_fp; | |
| 159 this.pc = raw_sp.getAddressAt(-1 * VM.getVM().getAddressSize()); | |
| 160 | |
| 161 // Frame must be fully constructed before this call | |
| 162 adjustForDeopt(); | |
| 163 | |
| 164 if (DEBUG) { | |
| 165 System.out.println("AMD64Frame(sp, fp, extension): " + this); | |
| 166 dumpStack(); | |
| 167 } | |
| 168 | |
| 169 } | |
| 170 | |
| 171 public Object clone() { | |
| 172 AMD64Frame frame = new AMD64Frame(); | |
| 173 frame.raw_sp = raw_sp; | |
| 174 frame.raw_unextendedSP = raw_unextendedSP; | |
| 175 frame.raw_fp = raw_fp; | |
| 176 frame.pc = pc; | |
| 177 frame.deoptimized = deoptimized; | |
| 178 return frame; | |
| 179 } | |
| 180 | |
| 181 public boolean equals(Object arg) { | |
| 182 if (arg == null) { | |
| 183 return false; | |
| 184 } | |
| 185 | |
| 186 if (!(arg instanceof AMD64Frame)) { | |
| 187 return false; | |
| 188 } | |
| 189 | |
| 190 AMD64Frame other = (AMD64Frame) arg; | |
| 191 | |
| 192 return (AddressOps.equal(getSP(), other.getSP()) && | |
| 193 AddressOps.equal(getFP(), other.getFP()) && | |
| 194 AddressOps.equal(getUnextendedSP(), other.getUnextendedSP()) && | |
| 195 AddressOps.equal(getPC(), other.getPC())); | |
| 196 } | |
| 197 | |
| 198 public int hashCode() { | |
| 199 if (raw_sp == null) { | |
| 200 return 0; | |
| 201 } | |
| 202 | |
| 203 return raw_sp.hashCode(); | |
| 204 } | |
| 205 | |
| 206 public String toString() { | |
| 207 return "sp: " + (getSP() == null? "null" : getSP().toString()) + | |
| 208 ", unextendedSP: " + (getUnextendedSP() == null? "null" : getUnextendedSP().toString()) + | |
| 209 ", fp: " + (getFP() == null? "null" : getFP().toString()) + | |
| 210 ", pc: " + (pc == null? "null" : pc.toString()); | |
| 211 } | |
| 212 | |
| 213 // accessors for the instance variables | |
| 214 public Address getFP() { return raw_fp; } | |
| 215 public Address getSP() { return raw_sp; } | |
| 216 public Address getID() { return raw_sp; } | |
| 217 | |
| 218 // FIXME: not implemented yet (should be done for Solaris/AMD64) | |
| 219 public boolean isSignalHandlerFrameDbg() { return false; } | |
| 220 public int getSignalNumberDbg() { return 0; } | |
| 221 public String getSignalNameDbg() { return null; } | |
| 222 | |
| 223 public boolean isInterpretedFrameValid() { | |
| 224 if (Assert.ASSERTS_ENABLED) { | |
| 225 Assert.that(isInterpretedFrame(), "Not an interpreted frame"); | |
| 226 } | |
| 227 | |
| 228 // These are reasonable sanity checks | |
| 229 if (getFP() == null || getFP().andWithMask(0x3) != null) { | |
| 230 return false; | |
| 231 } | |
| 232 | |
| 233 if (getSP() == null || getSP().andWithMask(0x3) != null) { | |
| 234 return false; | |
| 235 } | |
| 236 | |
| 237 if (getFP().addOffsetTo(INTERPRETER_FRAME_INITIAL_SP_OFFSET * VM.getVM().getAddressSize()).lessThan(getSP())) { | |
| 238 return false; | |
| 239 } | |
| 240 | |
| 241 // These are hacks to keep us out of trouble. | |
| 242 // The problem with these is that they mask other problems | |
| 243 if (getFP().lessThanOrEqual(getSP())) { | |
| 244 // this attempts to deal with unsigned comparison above | |
| 245 return false; | |
| 246 } | |
| 247 | |
| 248 if (getFP().minus(getSP()) > 4096 * VM.getVM().getAddressSize()) { | |
| 249 // stack frames shouldn't be large. | |
| 250 return false; | |
| 251 } | |
| 252 | |
| 253 return true; | |
| 254 } | |
| 255 | |
| 256 // FIXME: not applicable in current system | |
| 257 // void patch_pc(Thread* thread, address pc); | |
| 258 | |
| 259 public Frame sender(RegisterMap regMap, CodeBlob cb) { | |
| 260 AMD64RegisterMap map = (AMD64RegisterMap) regMap; | |
| 261 | |
| 262 if (Assert.ASSERTS_ENABLED) { | |
| 263 Assert.that(map != null, "map must be set"); | |
| 264 } | |
| 265 | |
| 266 // Default is we done have to follow them. The sender_for_xxx will | |
| 267 // update it accordingly | |
| 268 map.setIncludeArgumentOops(false); | |
| 269 | |
| 270 if (isEntryFrame()) return senderForEntryFrame(map); | |
| 271 if (isInterpretedFrame()) return senderForInterpreterFrame(map); | |
| 272 | |
| 273 | |
| 274 if (!VM.getVM().isCore()) { | |
| 275 if(cb == null) { | |
| 276 cb = VM.getVM().getCodeCache().findBlob(getPC()); | |
| 277 } else { | |
| 278 if (Assert.ASSERTS_ENABLED) { | |
| 279 Assert.that(cb.equals(VM.getVM().getCodeCache().findBlob(getPC())), "Must be the same"); | |
| 280 } | |
| 281 } | |
| 282 | |
| 283 if (cb != null) { | |
| 284 return senderForCompiledFrame(map, cb); | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 // Must be native-compiled frame, i.e. the marshaling code for native | |
| 289 // methods that exists in the core system. | |
| 290 return new AMD64Frame(getSenderSP(), getLink(), getSenderPC()); | |
| 291 } | |
| 292 | |
| 293 private Frame senderForEntryFrame(AMD64RegisterMap map) { | |
| 294 if (Assert.ASSERTS_ENABLED) { | |
| 295 Assert.that(map != null, "map must be set"); | |
| 296 } | |
| 297 // Java frame called from C; skip all C frames and return top C | |
| 298 // frame of that chunk as the sender | |
| 299 AMD64JavaCallWrapper jcw = (AMD64JavaCallWrapper) getEntryFrameCallWrapper(); | |
| 300 if (Assert.ASSERTS_ENABLED) { | |
| 301 Assert.that(!entryFrameIsFirst(), "next Java fp must be non zero"); | |
| 302 Assert.that(jcw.getLastJavaSP().greaterThan(getSP()), "must be above this frame on stack"); | |
| 303 } | |
| 304 AMD64Frame fr; | |
| 305 if (jcw.getLastJavaPC() != null) { | |
| 306 fr = new AMD64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP(), jcw.getLastJavaPC()); | |
| 307 } else { | |
| 308 fr = new AMD64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP()); | |
| 309 } | |
| 310 map.clear(); | |
| 311 if (Assert.ASSERTS_ENABLED) { | |
| 312 Assert.that(map.getIncludeArgumentOops(), "should be set by clear"); | |
| 313 } | |
| 314 return fr; | |
| 315 } | |
| 316 | |
| 317 private Frame senderForInterpreterFrame(AMD64RegisterMap map) { | |
| 318 Address unextendedSP = addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0); | |
| 319 Address sp = addressOfStackSlot(SENDER_SP_OFFSET); | |
| 320 // We do not need to update the callee-save register mapping because above | |
| 321 // us is either another interpreter frame or a converter-frame, but never | |
| 322 // directly a compiled frame. | |
| 323 // 11/24/04 SFG. This is no longer true after adapter were removed. However at the moment | |
| 324 // C2 no longer uses callee save register for java calls so there are no callee register | |
| 325 // to find. | |
| 326 return new AMD64Frame(sp, getLink(), unextendedSP.minus(sp)); | |
| 327 } | |
| 328 | |
| 329 private Frame senderForCompiledFrame(AMD64RegisterMap map, CodeBlob cb) { | |
| 330 // | |
| 331 // NOTE: some of this code is (unfortunately) duplicated in AMD64CurrentFrameGuess | |
| 332 // | |
| 333 | |
| 334 if (Assert.ASSERTS_ENABLED) { | |
| 335 Assert.that(map != null, "map must be set"); | |
| 336 } | |
| 337 | |
| 338 // frame owned by optimizing compiler | |
| 339 Address sender_sp = null; | |
| 340 | |
| 341 | |
| 342 if (VM.getVM().isClientCompiler()) { | |
| 343 sender_sp = addressOfStackSlot(SENDER_SP_OFFSET); | |
| 344 } else { | |
| 345 if (Assert.ASSERTS_ENABLED) { | |
| 346 Assert.that(cb.getFrameSize() >= 0, "Compiled by Compiler1: do not use"); | |
| 347 } | |
| 348 sender_sp = getUnextendedSP().addOffsetTo(cb.getFrameSize()); | |
| 349 } | |
| 350 | |
| 351 // On Intel the return_address is always the word on the stack | |
| 352 Address sender_pc = sender_sp.getAddressAt(-1 * VM.getVM().getAddressSize()); | |
| 353 | |
| 354 if (map.getUpdateMap() && cb.getOopMaps() != null) { | |
| 355 OopMapSet.updateRegisterMap(this, cb, map, true); | |
| 356 } | |
| 357 | |
| 358 if (VM.getVM().isClientCompiler()) { | |
| 359 // Move this here for C1 and collecting oops in arguments (According to Rene) | |
| 360 map.setIncludeArgumentOops(cb.callerMustGCArguments(map.getThread())); | |
| 361 } | |
| 362 | |
| 363 Address saved_fp = null; | |
| 364 if (VM.getVM().isClientCompiler()) { | |
| 365 saved_fp = getFP().getAddressAt(0); | |
| 366 } else if (VM.getVM().isServerCompiler() && | |
| 367 (VM.getVM().getInterpreter().contains(sender_pc) || | |
| 368 VM.getVM().getStubRoutines().returnsToCallStub(sender_pc))) { | |
| 369 // C2 prologue saves EBP in the usual place. | |
| 370 // however only use it if the sender had link infomration in it. | |
| 371 saved_fp = sender_sp.getAddressAt(-2 * VM.getVM().getAddressSize()); | |
| 372 } | |
| 373 | |
| 374 return new AMD64Frame(sender_sp, saved_fp, sender_pc); | |
| 375 } | |
| 376 | |
| 377 protected boolean hasSenderPD() { | |
| 378 // FIXME | |
| 379 // Check for null ebp? Need to do some tests. | |
| 380 return true; | |
| 381 } | |
| 382 | |
| 383 public long frameSize() { | |
| 384 return (getSenderSP().minus(getSP()) / VM.getVM().getAddressSize()); | |
| 385 } | |
| 386 | |
| 387 public Address getLink() { | |
| 388 return addressOfStackSlot(LINK_OFFSET).getAddressAt(0); | |
| 389 } | |
| 390 | |
| 391 // FIXME: not implementable yet | |
| 392 //inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } | |
| 393 | |
| 394 public Address getUnextendedSP() { return raw_unextendedSP; } | |
| 395 | |
| 396 // Return address: | |
| 397 public Address getSenderPCAddr() { return addressOfStackSlot(RETURN_ADDR_OFFSET); } | |
| 398 public Address getSenderPC() { return getSenderPCAddr().getAddressAt(0); } | |
| 399 | |
| 400 // return address of param, zero origin index. | |
| 401 public Address getNativeParamAddr(int idx) { | |
| 402 return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx); | |
| 403 } | |
| 404 | |
| 405 public Address getSenderSP() { return addressOfStackSlot(SENDER_SP_OFFSET); } | |
| 406 | |
| 407 public Address compiledArgumentToLocationPD(VMReg reg, RegisterMap regMap, int argSize) { | |
| 408 if (VM.getVM().isCore() || VM.getVM().isClientCompiler()) { | |
| 409 throw new RuntimeException("Should not reach here"); | |
| 410 } | |
| 411 | |
| 412 return oopMapRegToLocation(reg, regMap); | |
| 413 } | |
| 414 | |
| 415 public Address addressOfInterpreterFrameLocals() { | |
| 416 return addressOfStackSlot(INTERPRETER_FRAME_LOCALS_OFFSET); | |
| 417 } | |
| 418 | |
| 419 private Address addressOfInterpreterFrameBCX() { | |
| 420 return addressOfStackSlot(INTERPRETER_FRAME_BCX_OFFSET); | |
| 421 } | |
| 422 | |
| 423 public int getInterpreterFrameBCI() { | |
| 424 // FIXME: this is not atomic with respect to GC and is unsuitable | |
| 425 // for use in a non-debugging, or reflective, system. Need to | |
| 426 // figure out how to express this. | |
| 427 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); | |
| 428 OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); | |
| 429 Method method = (Method) VM.getVM().getObjectHeap().newOop(methodHandle); | |
| 430 return (int) bcpToBci(bcp, method); | |
| 431 } | |
| 432 | |
| 433 public Address addressOfInterpreterFrameMDX() { | |
| 434 return addressOfStackSlot(INTERPRETER_FRAME_MDX_OFFSET); | |
| 435 } | |
| 436 | |
| 437 // FIXME | |
| 438 //inline int frame::interpreter_frame_monitor_size() { | |
| 439 // return BasicObjectLock::size(); | |
| 440 //} | |
| 441 | |
| 442 // expression stack | |
| 443 // (the max_stack arguments are used by the GC; see class FrameClosure) | |
| 444 | |
| 445 public Address addressOfInterpreterFrameExpressionStack() { | |
| 446 Address monitorEnd = interpreterFrameMonitorEnd().address(); | |
| 447 return monitorEnd.addOffsetTo(-1 * VM.getVM().getAddressSize()); | |
| 448 } | |
| 449 | |
| 450 public int getInterpreterFrameExpressionStackDirection() { return -1; } | |
| 451 | |
| 452 // top of expression stack | |
| 453 public Address addressOfInterpreterFrameTOS() { | |
| 454 return getSP(); | |
| 455 } | |
| 456 | |
| 457 /** Expression stack from top down */ | |
| 458 public Address addressOfInterpreterFrameTOSAt(int slot) { | |
| 459 return addressOfInterpreterFrameTOS().addOffsetTo(slot * VM.getVM().getAddressSize()); | |
| 460 } | |
| 461 | |
| 462 public Address getInterpreterFrameSenderSP() { | |
| 463 if (Assert.ASSERTS_ENABLED) { | |
| 464 Assert.that(isInterpretedFrame(), "interpreted frame expected"); | |
| 465 } | |
| 466 return addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0); | |
| 467 } | |
| 468 | |
| 469 // Monitors | |
| 470 public BasicObjectLock interpreterFrameMonitorBegin() { | |
| 471 return new BasicObjectLock(addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_BOTTOM_OFFSET)); | |
| 472 } | |
| 473 | |
| 474 public BasicObjectLock interpreterFrameMonitorEnd() { | |
| 475 Address result = addressOfStackSlot(INTERPRETER_FRAME_MONITOR_BLOCK_TOP_OFFSET).getAddressAt(0); | |
| 476 if (Assert.ASSERTS_ENABLED) { | |
| 477 // make sure the pointer points inside the frame | |
| 478 Assert.that(AddressOps.gt(getFP(), result), "result must < than frame pointer"); | |
| 479 Assert.that(AddressOps.lte(getSP(), result), "result must >= than stack pointer"); | |
| 480 } | |
| 481 return new BasicObjectLock(result); | |
| 482 } | |
| 483 | |
| 484 public int interpreterFrameMonitorSize() { | |
| 485 return BasicObjectLock.size(); | |
| 486 } | |
| 487 | |
| 488 // Method | |
| 489 public Address addressOfInterpreterFrameMethod() { | |
| 490 return addressOfStackSlot(INTERPRETER_FRAME_METHOD_OFFSET); | |
| 491 } | |
| 492 | |
| 493 // Constant pool cache | |
| 494 public Address addressOfInterpreterFrameCPCache() { | |
| 495 return addressOfStackSlot(INTERPRETER_FRAME_CACHE_OFFSET); | |
| 496 } | |
| 497 | |
| 498 // Entry frames | |
| 499 public JavaCallWrapper getEntryFrameCallWrapper() { | |
| 500 return new AMD64JavaCallWrapper(addressOfStackSlot(ENTRY_FRAME_CALL_WRAPPER_OFFSET).getAddressAt(0)); | |
| 501 } | |
| 502 | |
| 503 protected Address addressOfSavedOopResult() { | |
| 504 // offset is 2 for compiler2 and 3 for compiler1 | |
| 505 return getSP().addOffsetTo((VM.getVM().isClientCompiler() ? 2 : 3) * | |
| 506 VM.getVM().getAddressSize()); | |
| 507 } | |
| 508 | |
| 509 protected Address addressOfSavedReceiver() { | |
| 510 return getSP().addOffsetTo(-4 * VM.getVM().getAddressSize()); | |
| 511 } | |
| 512 | |
| 513 private void dumpStack() { | |
| 514 if (getFP() != null) { | |
| 515 for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); | |
| 516 AddressOps.lte(addr, getFP().addOffsetTo(5 * VM.getVM().getAddressSize())); | |
| 517 addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { | |
| 518 System.out.println(addr + ": " + addr.getAddressAt(0)); | |
| 519 } | |
| 520 } else { | |
| 521 for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); | |
| 522 AddressOps.lte(addr, getSP().addOffsetTo(20 * VM.getVM().getAddressSize())); | |
| 523 addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { | |
| 524 System.out.println(addr + ": " + addr.getAddressAt(0)); | |
| 525 } | |
| 526 } | |
| 527 } | |
| 528 } |