author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 1 | 489c9b5090e2 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
2 |
* Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. |
1 | 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 |
* |
|
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1
diff
changeset
|
21 |
* questions. |
1 | 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 |
} |