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annotate agent/src/share/classes/sun/jvm/hotspot/runtime/ia64/IA64Frame.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
author | trims |
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date | Thu, 27 May 2010 19:08:38 -0700 |
parents | a61af66fc99e |
children | da91efe96a93 |
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0 | 1 /* |
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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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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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.ia64; | |
26 | |
27 import java.util.*; | |
28 // import sun.jvm.hotspot.asm.ia64.*; | |
29 import sun.jvm.hotspot.code.*; | |
30 import sun.jvm.hotspot.compiler.*; | |
31 import sun.jvm.hotspot.debugger.*; | |
32 import sun.jvm.hotspot.oops.*; | |
33 import sun.jvm.hotspot.runtime.*; | |
34 import sun.jvm.hotspot.types.*; | |
35 import sun.jvm.hotspot.utilities.*; | |
36 | |
37 /** Specialization of and implementation of abstract methods of the | |
38 Frame class for the ia64 family of CPUs. */ | |
39 | |
40 public class IA64Frame extends Frame { | |
41 private static final boolean DEBUG = false; | |
42 | |
43 // All frames | |
44 | |
45 // Interpreter frames | |
46 | |
47 // Entry frames | |
48 | |
49 // Native frames | |
50 | |
51 // an additional field beyond sp and pc: | |
52 // Address raw_fp; // frame pointer only 1.4.2 | |
53 | |
54 Address iframe; | |
55 | |
56 private IA64Frame() { | |
57 } | |
58 | |
59 public IA64Frame(Address raw_sp, Address iframe, Address pc) { | |
60 this.raw_sp = raw_sp; | |
61 this.iframe = iframe; | |
62 this.pc = pc; | |
63 if (DEBUG) { | |
64 System.err.println("IA64Frame(sp, iframe, pc): " + this); | |
65 dumpStack(); | |
66 } | |
67 } | |
68 | |
69 public Object clone() { | |
70 IA64Frame frame = new IA64Frame(); | |
71 frame.raw_sp = raw_sp; | |
72 frame.iframe = iframe; | |
73 frame.pc = pc; | |
74 return frame; | |
75 } | |
76 | |
77 public boolean equals(Object arg) { | |
78 if (arg == null) { | |
79 return false; | |
80 } | |
81 | |
82 if (!(arg instanceof IA64Frame)) { | |
83 return false; | |
84 } | |
85 | |
86 IA64Frame other = (IA64Frame) arg; | |
87 | |
88 return (AddressOps.equal(getSP(), other.getSP()) && | |
89 AddressOps.equal(getIFRAME(), other.getIFRAME()) && | |
90 AddressOps.equal(getPC(), other.getPC())); | |
91 } | |
92 | |
93 public int hashCode() { | |
94 if (iframe == null) { | |
95 return 0; | |
96 } | |
97 | |
98 return iframe.hashCode(); | |
99 } | |
100 | |
101 public String toString() { | |
102 return "sp: " + (getSP() == null? "null" : getSP().toString()) + | |
103 ", iframe: " + (getIFRAME() == null? "null" : getIFRAME().toString()) + | |
104 ", pc: " + (pc == null? "null" : pc.toString()); | |
105 } | |
106 | |
107 // accessors for the instance variables | |
108 public Address getFP() { return null; } | |
109 public Address getIFRAME() { return iframe; } | |
110 public Address getSP() { return raw_sp; } | |
111 public Address getID() { return getFP(); } | |
112 | |
113 // FIXME: not implemented yet | |
114 public boolean isSignalHandlerFrameDbg() { return false; } | |
115 public int getSignalNumberDbg() { return 0; } | |
116 public String getSignalNameDbg() { return null; } | |
117 | |
118 // FIXME: do sanity checks | |
119 public boolean isInterpretedFrameValid() { | |
120 return true; | |
121 } | |
122 | |
123 public boolean isInterpretedFrame() { return iframe != null; } | |
124 | |
125 | |
126 // FIXME: not applicable in current system | |
127 // void patch_pc(Thread* thread, address pc); | |
128 | |
129 public Frame sender(RegisterMap regMap, CodeBlob cb) { | |
130 | |
131 if (iframe == null) { | |
132 return null; | |
133 } | |
134 | |
135 cInterpreter fr = new cInterpreter(iframe); | |
136 | |
137 if (fr.prev() == null) { | |
138 Address wrapper = fr.wrapper(); | |
139 if ( wrapper == null) { | |
140 return null; | |
141 } | |
142 IA64JavaCallWrapper jcw = new IA64JavaCallWrapper(wrapper); | |
143 Address iprev = jcw.getPrevIFrame(); | |
144 if (iprev == null) { | |
145 return null; | |
146 } | |
147 return new IA64Frame(null, iprev, null); | |
148 } else { | |
149 return new IA64Frame(null, fr.prev(), null); | |
150 } | |
151 | |
152 /* | |
153 IA64RegisterMap map = (IA64RegisterMap) regMap; | |
154 | |
155 if (Assert.ASSERTS_ENABLED) { | |
156 Assert.that(map != null, "map must be set"); | |
157 } | |
158 | |
159 // Default is we done have to follow them. The sender_for_xxx will | |
160 // update it accordingly | |
161 map.setIncludeArgumentOops(false); | |
162 | |
163 if (isEntryFrame()) return senderForEntryFrame(map); | |
164 if (isInterpretedFrame()) return senderForInterpreterFrame(map); | |
165 | |
166 if (!VM.getVM().isCore()) { | |
167 if(cb == null) { | |
168 cb = VM.getVM().getCodeCache().findBlob(getPC()); | |
169 } else { | |
170 if (Assert.ASSERTS_ENABLED) { | |
171 Assert.that(cb.equals(VM.getVM().getCodeCache().findBlob(getPC())), "Must be the same"); | |
172 } | |
173 } | |
174 | |
175 if (cb != null) { | |
176 return senderForCompiledFrame(map, cb); | |
177 } | |
178 } | |
179 | |
180 // Must be native-compiled frame, i.e. the marshaling code for native | |
181 // methods that exists in the core system. | |
182 return new IA64Frame(getSenderSP(), getLink(), getSenderPC()); | |
183 | |
184 */ | |
185 } | |
186 | |
187 private Frame senderForEntryFrame(IA64RegisterMap map) { | |
188 if (Assert.ASSERTS_ENABLED) { | |
189 Assert.that(map != null, "map must be set"); | |
190 } | |
191 /* | |
192 // Java frame called from C; skip all C frames and return top C | |
193 // frame of that chunk as the sender | |
194 IA64JavaCallWrapper jcw = (IA64JavaCallWrapper) getEntryFrameCallWrapper(); | |
195 if (Assert.ASSERTS_ENABLED) { | |
196 Assert.that(!entryFrameIsFirst(), "next Java fp must be non zero"); | |
197 Assert.that(jcw.getLastJavaSP().greaterThan(getSP()), "must be above this frame on stack"); | |
198 } | |
199 IA64Frame fr = new IA64Frame(jcw.getLastJavaSP(), jcw.getLastJavaFP(), null); | |
200 map.clear(); | |
201 if (Assert.ASSERTS_ENABLED) { | |
202 Assert.that(map.getIncludeArgumentOops(), "should be set by clear"); | |
203 } | |
204 return fr; | |
205 */ | |
206 throw new RuntimeException("senderForEntryFrame NYI"); | |
207 } | |
208 | |
209 private Frame senderForInterpreterFrame(IA64RegisterMap map) { | |
210 /* | |
211 Address sp = addressOfStackSlot(INTERPRETER_FRAME_SENDER_SP_OFFSET).getAddressAt(0); | |
212 // We do not need to update the callee-save register mapping because above | |
213 // us is either another interpreter frame or a converter-frame, but never | |
214 // directly a compiled frame. | |
215 return new IA64Frame(sp, getLink(), getSenderPC()); | |
216 */ | |
217 throw new RuntimeException("senderForInterpreterFrame NYI"); | |
218 } | |
219 | |
220 private Frame senderForDeoptimizedFrame(IA64RegisterMap map, CodeBlob cb) { | |
221 // FIXME | |
222 throw new RuntimeException("Deoptimized frames not handled yet"); | |
223 } | |
224 | |
225 private Frame senderForCompiledFrame(IA64RegisterMap map, CodeBlob cb) { | |
226 // | |
227 // NOTE: some of this code is (unfortunately) duplicated in IA64CurrentFrameGuess | |
228 // | |
229 | |
230 if (Assert.ASSERTS_ENABLED) { | |
231 Assert.that(map != null, "map must be set"); | |
232 } | |
233 | |
234 throw new RuntimeException("senderForCompiledFrame NYI"); | |
235 | |
236 /* | |
237 | |
238 // frame owned by optimizing compiler | |
239 Address sender_sp = null; | |
240 | |
241 if (VM.getVM().isClientCompiler()) { | |
242 sender_sp = addressOfStackSlot(SENDER_SP_OFFSET); | |
243 } else { | |
244 if (Assert.ASSERTS_ENABLED) { | |
245 Assert.that(cb.getFrameSize() >= 0, "Compiled by Compiler1: do not use"); | |
246 } | |
247 sender_sp = getSP().addOffsetTo(cb.getFrameSize()); | |
248 } | |
249 | |
250 // On Intel the return_address is always the word on the stack | |
251 Address sender_pc = sender_sp.getAddressAt(-1 * VM.getVM().getAddressSize()); | |
252 | |
253 if (map.getUpdateMap() && cb.getOopMaps() != null) { | |
254 OopMapSet.updateRegisterMap(this, cb, map, true); | |
255 } | |
256 | |
257 Address saved_fp = null; | |
258 if (VM.getVM().isClientCompiler()) { | |
259 saved_fp = getFP().getAddressAt(0); | |
260 } else { | |
261 int llink_offset = cb.getLinkOffset(); | |
262 if (llink_offset >= 0) { | |
263 // Restore base-pointer, since next frame might be an interpreter frame. | |
264 Address fp_addr = getSP().addOffsetTo(VM.getVM().getAddressSize() * llink_offset); | |
265 saved_fp = fp_addr.getAddressAt(0); | |
266 } | |
267 } | |
268 | |
269 sender_sp = null ; // sp_addr.getAddressAt(0); | |
270 | |
271 return new IA64Frame(sender_sp, saved_fp, sender_pc); | |
272 | |
273 */ | |
274 } | |
275 | |
276 protected boolean hasSenderPD() { | |
277 // FIXME | |
278 return true; | |
279 } | |
280 | |
281 public long frameSize() { | |
282 throw new RuntimeException("frameSize NYI"); | |
283 /* | |
284 return (getSenderSP().minus(getSP()) / VM.getVM().getAddressSize()); | |
285 */ | |
286 } | |
287 | |
288 public Address getLink() { | |
289 throw new RuntimeException("getLink NYI"); | |
290 /* | |
291 return addressOfStackSlot(LINK_OFFSET).getAddressAt(0); | |
292 */ | |
293 } | |
294 | |
295 // FIXME: not implementable yet | |
296 //inline void frame::set_link(intptr_t* addr) { *(intptr_t **)addr_at(link_offset) = addr; } | |
297 | |
298 public Address getUnextendedSP() { return getSP(); } | |
299 | |
300 // Return address: | |
301 /* | |
302 public Address getSenderPCAddr() { return addressOfStackSlot(RETURN_ADDR_OFFSET); } | |
303 */ | |
304 | |
305 public Address getSenderPC() { return null; } | |
306 | |
307 /* | |
308 // return address of param, zero origin index. | |
309 public Address getNativeParamAddr(int idx) { | |
310 return addressOfStackSlot(NATIVE_FRAME_INITIAL_PARAM_OFFSET + idx); | |
311 } | |
312 */ | |
313 | |
314 public Address getSenderSP() { return null; } | |
315 | |
316 /* | |
317 public Address compiledArgumentToLocationPD(VMReg reg, RegisterMap regMap, int argSize) { | |
318 if (VM.getVM().isCore() || VM.getVM().isClientCompiler()) { | |
319 throw new RuntimeException("Should not reach here"); | |
320 } | |
321 | |
322 return oopMapRegToLocation(reg, regMap); | |
323 } | |
324 | |
325 */ | |
326 | |
327 public Address addressOfInterpreterFrameLocals() { | |
328 if (iframe == null) { | |
329 throw new RuntimeException("Not an Interpreter frame"); | |
330 } | |
331 cInterpreter fr = new cInterpreter(iframe); | |
332 return fr.locals(); | |
333 } | |
334 | |
335 private Address addressOfInterpreterFrameBCX() { | |
336 if (iframe == null) { | |
337 throw new RuntimeException("Not an Interpreter frame"); | |
338 } | |
339 cInterpreter fr = new cInterpreter(iframe); | |
340 return fr.bcpAddr(); | |
341 } | |
342 | |
343 public int getInterpreterFrameBCI() { | |
344 // FIXME: this is not atomic with respect to GC and is unsuitable | |
345 // for use in a non-debugging, or reflective, system. Need to | |
346 // figure out how to express this. | |
347 Address bcp = addressOfInterpreterFrameBCX().getAddressAt(0); | |
348 OopHandle methodHandle = addressOfInterpreterFrameMethod().getOopHandleAt(0); | |
349 Method method = (Method) VM.getVM().getObjectHeap().newOop(methodHandle); | |
350 return bcpToBci(bcp, method); | |
351 } | |
352 | |
353 public Address addressOfInterpreterFrameMDX() { | |
354 return null; | |
355 } | |
356 | |
357 // FIXME | |
358 //inline int frame::interpreter_frame_monitor_size() { | |
359 // return BasicObjectLock::size(); | |
360 //} | |
361 | |
362 // expression stack | |
363 // (the max_stack arguments are used by the GC; see class FrameClosure) | |
364 | |
365 public Address addressOfInterpreterFrameExpressionStack() { | |
366 if (iframe == null) { | |
367 throw new RuntimeException("Not an Interpreter frame"); | |
368 } | |
369 cInterpreter fr = new cInterpreter(iframe); | |
370 return fr.stackBase(); | |
371 } | |
372 | |
373 public int getInterpreterFrameExpressionStackDirection() { return -1; } | |
374 | |
375 // top of expression stack | |
376 public Address addressOfInterpreterFrameTOS() { | |
377 if (iframe == null) { | |
378 throw new RuntimeException("Not an Interpreter frame"); | |
379 } | |
380 cInterpreter fr = new cInterpreter(iframe); | |
381 // tos always points to first free element in c++ interpreter not tos | |
382 return fr.stackBase().addOffsetTo(VM.getVM().getAddressSize()); | |
383 } | |
384 | |
385 /** Expression stack from top down */ | |
386 public Address addressOfInterpreterFrameTOSAt(int slot) { | |
387 return addressOfInterpreterFrameTOS().addOffsetTo(slot * VM.getVM().getAddressSize()); | |
388 } | |
389 | |
390 public Address getInterpreterFrameSenderSP() { | |
391 if (Assert.ASSERTS_ENABLED) { | |
392 Assert.that(isInterpretedFrame(), "interpreted frame expected"); | |
393 } | |
394 throw new RuntimeException("getInterpreterFrameSenderSP NYI"); | |
395 } | |
396 | |
397 // Monitors | |
398 public BasicObjectLock interpreterFrameMonitorBegin() { | |
399 if (iframe == null) { | |
400 throw new RuntimeException("Not an Interpreter frame"); | |
401 } | |
402 cInterpreter fr = new cInterpreter(iframe); | |
403 return new BasicObjectLock(fr.monitorBase()); | |
404 } | |
405 | |
406 public BasicObjectLock interpreterFrameMonitorEnd() { | |
407 if (iframe == null) { | |
408 throw new RuntimeException("Not an Interpreter frame"); | |
409 } | |
410 cInterpreter fr = new cInterpreter(iframe); | |
411 // Monitors end is just above stack base (2 slots per monitor) | |
412 Address result = fr.stackBase().addOffsetTo(2 * VM.getVM().getAddressSize()); | |
413 /* | |
414 if (Assert.ASSERTS_ENABLED) { | |
415 // make sure the pointer points inside the frame | |
416 Assert.that(AddressOps.gt(getFP(), result), "result must < than frame pointer"); | |
417 Assert.that(AddressOps.lte(getSP(), result), "result must >= than stack pointer"); | |
418 } | |
419 */ | |
420 return new BasicObjectLock(result); | |
421 } | |
422 | |
423 public int interpreterFrameMonitorSize() { | |
424 return BasicObjectLock.size(); | |
425 } | |
426 | |
427 // Method | |
428 public Address addressOfInterpreterFrameMethod() { | |
429 if (iframe == null) { | |
430 throw new RuntimeException("Not an Interpreter frame"); | |
431 } | |
432 cInterpreter fr = new cInterpreter(iframe); | |
433 return fr.methodAddr(); | |
434 } | |
435 | |
436 // Constant pool cache | |
437 public Address addressOfInterpreterFrameCPCache() { | |
438 if (iframe == null) { | |
439 throw new RuntimeException("Not an Interpreter frame"); | |
440 } | |
441 cInterpreter fr = new cInterpreter(iframe); | |
442 return fr.constantsAddr(); | |
443 } | |
444 | |
445 // Entry frames | |
446 public JavaCallWrapper getEntryFrameCallWrapper() { | |
447 throw new RuntimeException("getEntryFrameCallWrapper NYI"); | |
448 } | |
449 | |
450 protected Address addressOfSavedOopResult() { | |
451 throw new RuntimeException("public boolean isInterpretedFrame() NYI"); | |
452 /* | |
453 // offset is 2 for compiler2 and 3 for compiler1 | |
454 return getSP().addOffsetTo((VM.getVM().isClientCompiler() ? 2 : 3) * | |
455 VM.getVM().getAddressSize()); | |
456 */ | |
457 } | |
458 | |
459 protected Address addressOfSavedReceiver() { | |
460 throw new RuntimeException("getEntryFrameCallWrapper NYI"); | |
461 // return getSP().addOffsetTo(-4 * VM.getVM().getAddressSize()); | |
462 } | |
463 | |
464 private void dumpStack() { | |
465 /* | |
466 if (getFP() != null) { | |
467 for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); | |
468 AddressOps.lte(addr, getFP().addOffsetTo(5 * VM.getVM().getAddressSize())); | |
469 addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { | |
470 System.out.println(addr + ": " + addr.getAddressAt(0)); | |
471 } | |
472 } else { | |
473 for (Address addr = getSP().addOffsetTo(-5 * VM.getVM().getAddressSize()); | |
474 AddressOps.lte(addr, getSP().addOffsetTo(20 * VM.getVM().getAddressSize())); | |
475 addr = addr.addOffsetTo(VM.getVM().getAddressSize())) { | |
476 System.out.println(addr + ": " + addr.getAddressAt(0)); | |
477 } | |
478 } | |
479 */ | |
480 } | |
481 } |