Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 20243:e0c6fadce66e
8049252: VerifyStack logic in Deoptimization::unpack_frames does not expect to see invoke bc at the top frame during normal deoptimization
Summary: Add missing check for reexecute flag to VerifyStack code.
Reviewed-by: roland
author | kvn |
---|---|
date | Tue, 29 Jul 2014 13:40:58 -0700 |
parents | ce8f6bb717c9 |
children | 327e7269f90d |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2013, 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 |
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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 | |
1972 | 25 // no precompiled headers |
26 #include "classfile/vmSymbols.hpp" | |
27 #include "gc_interface/collectedHeap.hpp" | |
28 #include "interpreter/bytecodeHistogram.hpp" | |
29 #include "interpreter/bytecodeInterpreter.hpp" | |
30 #include "interpreter/bytecodeInterpreter.inline.hpp" | |
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31 #include "interpreter/bytecodeInterpreterProfiling.hpp" |
1972 | 32 #include "interpreter/interpreter.hpp" |
33 #include "interpreter/interpreterRuntime.hpp" | |
34 #include "memory/resourceArea.hpp" | |
10233 | 35 #include "oops/methodCounters.hpp" |
1972 | 36 #include "oops/objArrayKlass.hpp" |
37 #include "oops/oop.inline.hpp" | |
38 #include "prims/jvmtiExport.hpp" | |
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39 #include "prims/jvmtiThreadState.hpp" |
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40 #include "runtime/biasedLocking.hpp" |
1972 | 41 #include "runtime/frame.inline.hpp" |
42 #include "runtime/handles.inline.hpp" | |
43 #include "runtime/interfaceSupport.hpp" | |
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44 #include "runtime/orderAccess.inline.hpp" |
1972 | 45 #include "runtime/sharedRuntime.hpp" |
46 #include "runtime/threadCritical.hpp" | |
47 #include "utilities/exceptions.hpp" | |
0 | 48 |
49 // no precompiled headers | |
50 #ifdef CC_INTERP | |
51 | |
52 /* | |
53 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
54 * rather -then a switch statement. This improves performance because it | |
55 * gives us the oportunity to have the instructions that calculate the | |
56 * next opcode to jump to be intermixed with the rest of the instructions | |
57 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
58 */ | |
59 #undef USELABELS | |
60 #ifdef __GNUC__ | |
61 /* | |
62 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
63 don't use the computed goto approach. | |
64 */ | |
65 #ifndef ASSERT | |
66 #define USELABELS | |
67 #endif | |
68 #endif | |
69 | |
70 #undef CASE | |
71 #ifdef USELABELS | |
72 #define CASE(opcode) opc ## opcode | |
73 #define DEFAULT opc_default | |
74 #else | |
75 #define CASE(opcode) case Bytecodes:: opcode | |
76 #define DEFAULT default | |
77 #endif | |
78 | |
79 /* | |
80 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
81 * opcode before going back to the top of the while loop, rather then having | |
82 * the top of the while loop handle it. This provides a better opportunity | |
83 * for instruction scheduling. Some compilers just do this prefetch | |
84 * automatically. Some actually end up with worse performance if you | |
85 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
86 */ | |
87 #undef PREFETCH_OPCCODE | |
88 #define PREFETCH_OPCCODE | |
89 | |
90 /* | |
91 Interpreter safepoint: it is expected that the interpreter will have no live | |
92 handles of its own creation live at an interpreter safepoint. Therefore we | |
93 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
94 since the JavaCalls::call_helper invocation that initiated the chain. | |
95 There really shouldn't be any handles remaining to trash but this is cheap | |
96 in relation to a safepoint. | |
97 */ | |
98 #define SAFEPOINT \ | |
99 if ( SafepointSynchronize::is_synchronizing()) { \ | |
100 { \ | |
101 /* zap freed handles rather than GC'ing them */ \ | |
102 HandleMarkCleaner __hmc(THREAD); \ | |
103 } \ | |
104 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
105 } | |
106 | |
107 /* | |
108 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
109 * the interpreter loop. Should really be a CALL_VM but there | |
110 * is no entry point to do the transition to vm so we just | |
111 * do it by hand here. | |
112 */ | |
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113 #define VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
0 | 114 DECACHE_STATE(); \ |
115 SET_LAST_JAVA_FRAME(); \ | |
116 { \ | |
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117 InterpreterRuntime::note_a_trap(THREAD, istate->method(), BCI()); \ |
0 | 118 ThreadInVMfromJava trans(THREAD); \ |
119 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
120 } \ | |
121 RESET_LAST_JAVA_FRAME(); \ | |
122 CACHE_STATE(); | |
123 | |
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124 // Normal throw of a java error. |
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125 #define VM_JAVA_ERROR(name, msg, note_a_trap) \ |
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126 VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
0 | 127 goto handle_exception; |
128 | |
129 #ifdef PRODUCT | |
130 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
131 #else | |
132 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
133 { \ | |
134 BytecodeCounter::_counter_value++; \ | |
135 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
136 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
137 if (TraceBytecodes) { \ | |
138 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
139 topOfStack[Interpreter::expr_index_at(1)], \ | |
140 topOfStack[Interpreter::expr_index_at(2)]), \ | |
141 handle_exception); \ | |
142 } \ | |
143 } | |
144 #endif | |
145 | |
146 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
147 #ifdef VM_JVMTI | |
148 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
149 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
150 breakpoint opcode to get inserted at the current PC to allow the | |
151 debugger to coalesce single-step events. | |
152 | |
153 As a result if we call at_single_stepping_point() we refetch opcode | |
154 to get the current opcode. This will override any other prefetching | |
155 that might have occurred. | |
156 */ | |
157 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
158 { \ | |
159 if (_jvmti_interp_events) { \ | |
160 if (JvmtiExport::should_post_single_step()) { \ | |
161 DECACHE_STATE(); \ | |
162 SET_LAST_JAVA_FRAME(); \ | |
163 ThreadInVMfromJava trans(THREAD); \ | |
164 JvmtiExport::at_single_stepping_point(THREAD, \ | |
165 istate->method(), \ | |
166 pc); \ | |
167 RESET_LAST_JAVA_FRAME(); \ | |
168 CACHE_STATE(); \ | |
169 if (THREAD->pop_frame_pending() && \ | |
170 !THREAD->pop_frame_in_process()) { \ | |
171 goto handle_Pop_Frame; \ | |
172 } \ | |
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173 if (THREAD->jvmti_thread_state() && \ |
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174 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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175 goto handle_Early_Return; \ |
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176 } \ |
0 | 177 opcode = *pc; \ |
178 } \ | |
179 } \ | |
180 } | |
181 #else | |
182 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
183 #endif | |
184 | |
185 /* | |
186 * CONTINUE - Macro for executing the next opcode. | |
187 */ | |
188 #undef CONTINUE | |
189 #ifdef USELABELS | |
190 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
191 // initialization (which is is the initialization of the table pointer...) | |
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192 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
0 | 193 #define CONTINUE { \ |
194 opcode = *pc; \ | |
195 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
196 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
197 DISPATCH(opcode); \ | |
198 } | |
199 #else | |
200 #ifdef PREFETCH_OPCCODE | |
201 #define CONTINUE { \ | |
202 opcode = *pc; \ | |
203 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
204 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
205 continue; \ | |
206 } | |
207 #else | |
208 #define CONTINUE { \ | |
209 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
210 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
211 continue; \ | |
212 } | |
213 #endif | |
214 #endif | |
215 | |
216 | |
217 #define UPDATE_PC(opsize) {pc += opsize; } | |
218 /* | |
219 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
220 */ | |
221 #undef UPDATE_PC_AND_TOS | |
222 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
223 {pc += opsize; MORE_STACK(stack); } | |
224 | |
225 /* | |
226 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
227 * and executing the next opcode. It's somewhat similar to the combination | |
228 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
229 */ | |
230 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
231 #ifdef USELABELS | |
232 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
233 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
234 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
235 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
236 DISPATCH(opcode); \ | |
237 } | |
238 | |
239 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
240 pc += opsize; opcode = *pc; \ | |
241 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
242 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
243 DISPATCH(opcode); \ | |
244 } | |
245 #else | |
246 #ifdef PREFETCH_OPCCODE | |
247 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
248 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
249 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
250 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
251 goto do_continue; \ | |
252 } | |
253 | |
254 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
255 pc += opsize; opcode = *pc; \ | |
256 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
257 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
258 goto do_continue; \ | |
259 } | |
260 #else | |
261 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
262 pc += opsize; MORE_STACK(stack); \ | |
263 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
264 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
265 goto do_continue; \ | |
266 } | |
267 | |
268 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
269 pc += opsize; \ | |
270 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
271 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
272 goto do_continue; \ | |
273 } | |
274 #endif /* PREFETCH_OPCCODE */ | |
275 #endif /* USELABELS */ | |
276 | |
277 // About to call a new method, update the save the adjusted pc and return to frame manager | |
278 #define UPDATE_PC_AND_RETURN(opsize) \ | |
279 DECACHE_TOS(); \ | |
280 istate->set_bcp(pc+opsize); \ | |
281 return; | |
282 | |
283 | |
284 #define METHOD istate->method() | |
10233 | 285 #define GET_METHOD_COUNTERS(res) \ |
286 res = METHOD->method_counters(); \ | |
287 if (res == NULL) { \ | |
288 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
289 } | |
290 | |
0 | 291 #define OSR_REQUEST(res, branch_pc) \ |
292 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
293 /* | |
294 * For those opcodes that need to have a GC point on a backwards branch | |
295 */ | |
296 | |
297 // Backedge counting is kind of strange. The asm interpreter will increment | |
298 // the backedge counter as a separate counter but it does it's comparisons | |
299 // to the sum (scaled) of invocation counter and backedge count to make | |
300 // a decision. Seems kind of odd to sum them together like that | |
301 | |
302 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
303 | |
304 | |
305 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
306 if ((skip) <= 0) { \ | |
10233 | 307 MethodCounters* mcs; \ |
308 GET_METHOD_COUNTERS(mcs); \ | |
1078 | 309 if (UseLoopCounter) { \ |
0 | 310 bool do_OSR = UseOnStackReplacement; \ |
10233 | 311 mcs->backedge_counter()->increment(); \ |
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312 if (ProfileInterpreter) { \ |
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313 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); \ |
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314 /* Check for overflow against MDO count. */ \ |
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315 do_OSR = do_OSR \ |
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316 && (mdo_last_branch_taken_count >= (uint)InvocationCounter::InterpreterBackwardBranchLimit)\ |
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317 /* When ProfileInterpreter is on, the backedge_count comes */ \ |
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318 /* from the methodDataOop, which value does not get reset on */ \ |
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319 /* the call to frequency_counter_overflow(). To avoid */ \ |
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320 /* excessive calls to the overflow routine while the method is */ \ |
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321 /* being compiled, add a second test to make sure the overflow */ \ |
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322 /* function is called only once every overflow_frequency. */ \ |
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323 && (!(mdo_last_branch_taken_count & 1023)); \ |
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324 } else { \ |
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325 /* check for overflow of backedge counter */ \ |
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326 do_OSR = do_OSR \ |
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327 && mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter()); \ |
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328 } \ |
0 | 329 if (do_OSR) { \ |
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330 nmethod* osr_nmethod; \ |
0 | 331 OSR_REQUEST(osr_nmethod, branch_pc); \ |
332 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
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333 intptr_t* buf; \ |
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334 /* Call OSR migration with last java frame only, no checks. */ \ |
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335 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
0 | 336 istate->set_msg(do_osr); \ |
337 istate->set_osr_buf((address)buf); \ | |
338 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
339 return; \ | |
340 } \ | |
341 } \ | |
342 } /* UseCompiler ... */ \ | |
343 SAFEPOINT; \ | |
344 } | |
345 | |
346 /* | |
347 * For those opcodes that need to have a GC point on a backwards branch | |
348 */ | |
349 | |
350 /* | |
351 * Macros for caching and flushing the interpreter state. Some local | |
352 * variables need to be flushed out to the frame before we do certain | |
353 * things (like pushing frames or becomming gc safe) and some need to | |
354 * be recached later (like after popping a frame). We could use one | |
355 * macro to cache or decache everything, but this would be less then | |
356 * optimal because we don't always need to cache or decache everything | |
357 * because some things we know are already cached or decached. | |
358 */ | |
359 #undef DECACHE_TOS | |
360 #undef CACHE_TOS | |
361 #undef CACHE_PREV_TOS | |
362 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
363 | |
364 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
365 | |
366 #undef DECACHE_PC | |
367 #undef CACHE_PC | |
368 #define DECACHE_PC() istate->set_bcp(pc); | |
369 #define CACHE_PC() pc = istate->bcp(); | |
370 #define CACHE_CP() cp = istate->constants(); | |
371 #define CACHE_LOCALS() locals = istate->locals(); | |
372 #undef CACHE_FRAME | |
373 #define CACHE_FRAME() | |
374 | |
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375 // BCI() returns the current bytecode-index. |
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376 #undef BCI |
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377 #define BCI() ((int)(intptr_t)(pc - (intptr_t)istate->method()->code_base())) |
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378 |
0 | 379 /* |
380 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
381 * passed is a null ref. | |
382 * On some architectures/platforms it should be possible to do this implicitly | |
383 */ | |
384 #undef CHECK_NULL | |
17801 | 385 #define CHECK_NULL(obj_) \ |
386 if ((obj_) == NULL) { \ | |
387 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), NULL, note_nullCheck_trap); \ | |
388 } \ | |
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389 VERIFY_OOP(obj_) |
0 | 390 |
391 #define VMdoubleConstZero() 0.0 | |
392 #define VMdoubleConstOne() 1.0 | |
393 #define VMlongConstZero() (max_jlong-max_jlong) | |
394 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
395 | |
396 /* | |
397 * Alignment | |
398 */ | |
399 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
400 | |
401 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
402 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
403 | |
404 // Reload interpreter state after calling the VM or a possible GC | |
405 #define CACHE_STATE() \ | |
406 CACHE_TOS(); \ | |
407 CACHE_PC(); \ | |
408 CACHE_CP(); \ | |
409 CACHE_LOCALS(); | |
410 | |
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411 // Call the VM with last java frame only. |
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412 #define CALL_VM_NAKED_LJF(func) \ |
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413 DECACHE_STATE(); \ |
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414 SET_LAST_JAVA_FRAME(); \ |
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415 func; \ |
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416 RESET_LAST_JAVA_FRAME(); \ |
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417 CACHE_STATE(); |
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418 |
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419 // Call the VM. Don't check for pending exceptions. |
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420 #define CALL_VM_NOCHECK(func) \ |
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421 CALL_VM_NAKED_LJF(func) \ |
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422 if (THREAD->pop_frame_pending() && \ |
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423 !THREAD->pop_frame_in_process()) { \ |
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424 goto handle_Pop_Frame; \ |
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425 } \ |
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426 if (THREAD->jvmti_thread_state() && \ |
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427 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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428 goto handle_Early_Return; \ |
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429 } |
0 | 430 |
431 // Call the VM and check for pending exceptions | |
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432 #define CALL_VM(func, label) { \ |
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433 CALL_VM_NOCHECK(func); \ |
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434 if (THREAD->has_pending_exception()) goto label; \ |
0 | 435 } |
436 | |
437 /* | |
438 * BytecodeInterpreter::run(interpreterState istate) | |
439 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
440 * | |
441 * The real deal. This is where byte codes actually get interpreted. | |
442 * Basically it's a big while loop that iterates until we return from | |
443 * the method passed in. | |
444 * | |
445 * The runWithChecks is used if JVMTI is enabled. | |
446 * | |
447 */ | |
448 #if defined(VM_JVMTI) | |
449 void | |
450 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
451 #else | |
452 void | |
453 BytecodeInterpreter::run(interpreterState istate) { | |
454 #endif | |
455 | |
456 // In order to simplify some tests based on switches set at runtime | |
457 // we invoke the interpreter a single time after switches are enabled | |
458 // and set simpler to to test variables rather than method calls or complex | |
459 // boolean expressions. | |
460 | |
461 static int initialized = 0; | |
462 static int checkit = 0; | |
463 static intptr_t* c_addr = NULL; | |
464 static intptr_t c_value; | |
465 | |
466 if (checkit && *c_addr != c_value) { | |
467 os::breakpoint(); | |
468 } | |
469 #ifdef VM_JVMTI | |
470 static bool _jvmti_interp_events = 0; | |
471 #endif | |
472 | |
473 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
474 | |
475 #ifdef ASSERT | |
476 if (istate->_msg != initialize) { | |
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477 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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478 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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479 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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480 // for the old JSR292 implementation. |
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481 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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482 // methodOopDesc::extra_stack_entries() because it is computed in |
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483 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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484 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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485 // account for extra_stack_entries() anymore because at the time when it is called |
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486 // EnableInvokeDynamic was already set to false. |
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487 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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488 // switched off because of the wrong classes. |
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489 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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490 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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491 } else { |
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492 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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493 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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494 + 1), "bad stack limit"); |
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495 } |
1729 | 496 #ifndef SHARK |
497 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
498 #endif // !SHARK | |
0 | 499 } |
500 // Verify linkages. | |
501 interpreterState l = istate; | |
502 do { | |
503 assert(l == l->_self_link, "bad link"); | |
504 l = l->_prev_link; | |
505 } while (l != NULL); | |
506 // Screwups with stack management usually cause us to overwrite istate | |
507 // save a copy so we can verify it. | |
508 interpreterState orig = istate; | |
509 #endif | |
510 | |
511 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
512 register address pc = istate->bcp(); | |
513 register jubyte opcode; | |
514 register intptr_t* locals = istate->locals(); | |
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515 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
0 | 516 #ifdef LOTS_OF_REGS |
517 register JavaThread* THREAD = istate->thread(); | |
518 #else | |
519 #undef THREAD | |
520 #define THREAD istate->thread() | |
521 #endif | |
522 | |
523 #ifdef USELABELS | |
524 const static void* const opclabels_data[256] = { | |
525 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
526 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
527 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
528 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
529 | |
530 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
531 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
532 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
533 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
534 | |
535 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
536 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
537 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
538 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
539 | |
540 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
541 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
542 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
543 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
544 | |
545 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
546 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
547 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
548 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
549 | |
550 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
551 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
552 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
553 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
554 | |
555 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
556 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
557 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
558 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
559 | |
560 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
561 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
562 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
563 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
564 | |
565 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
566 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
567 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
568 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
569 | |
570 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
571 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
572 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
573 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
574 | |
575 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
576 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
577 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
578 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
579 | |
580 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
581 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
2480 | 582 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
0 | 583 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
584 | |
585 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
586 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
123 | 587 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
588 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
589 | |
590 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
0 | 591 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
592 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
593 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
594 | |
595 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
2480 | 596 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
6926 | 597 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
0 | 598 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
599 | |
600 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
601 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
602 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
603 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
604 }; | |
605 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
606 #endif /* USELABELS */ | |
607 | |
608 #ifdef ASSERT | |
609 // this will trigger a VERIFY_OOP on entry | |
610 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
611 oop rcvr = LOCALS_OBJECT(0); | |
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612 VERIFY_OOP(rcvr); |
0 | 613 } |
614 #endif | |
615 // #define HACK | |
616 #ifdef HACK | |
617 bool interesting = false; | |
618 #endif // HACK | |
619 | |
620 /* QQQ this should be a stack method so we don't know actual direction */ | |
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621 guarantee(istate->msg() == initialize || |
0 | 622 topOfStack >= istate->stack_limit() && |
623 topOfStack < istate->stack_base(), | |
624 "Stack top out of range"); | |
625 | |
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626 #ifdef CC_INTERP_PROFILE |
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627 // MethodData's last branch taken count. |
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628 uint mdo_last_branch_taken_count = 0; |
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629 #else |
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630 const uint mdo_last_branch_taken_count = 0; |
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631 #endif |
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632 |
0 | 633 switch (istate->msg()) { |
634 case initialize: { | |
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635 if (initialized++) ShouldNotReachHere(); // Only one initialize call. |
0 | 636 _compiling = (UseCompiler || CountCompiledCalls); |
637 #ifdef VM_JVMTI | |
638 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
639 #endif | |
640 return; | |
641 } | |
642 break; | |
643 case method_entry: { | |
644 THREAD->set_do_not_unlock(); | |
645 // count invocations | |
646 assert(initialized, "Interpreter not initialized"); | |
647 if (_compiling) { | |
10233 | 648 MethodCounters* mcs; |
649 GET_METHOD_COUNTERS(mcs); | |
0 | 650 if (ProfileInterpreter) { |
10233 | 651 METHOD->increment_interpreter_invocation_count(THREAD); |
0 | 652 } |
10233 | 653 mcs->invocation_counter()->increment(); |
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654 if (mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter())) { |
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655 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
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656 // We no longer retry on a counter overflow. |
0 | 657 } |
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658 // Get or create profile data. Check for pending (async) exceptions. |
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659 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
0 | 660 SAFEPOINT; |
661 } | |
662 | |
663 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
664 // initialize | |
665 os::breakpoint(); | |
666 } | |
667 | |
668 #ifdef HACK | |
669 { | |
670 ResourceMark rm; | |
671 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
672 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
673 tty->print_cr("entering: depth %d bci: %d", | |
674 (istate->_stack_base - istate->_stack), | |
675 istate->_bcp - istate->_method->code_base()); | |
676 interesting = true; | |
677 } | |
678 } | |
679 #endif // HACK | |
680 | |
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681 // Lock method if synchronized. |
0 | 682 if (METHOD->is_synchronized()) { |
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683 // oop rcvr = locals[0].j.r; |
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684 oop rcvr; |
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685 if (METHOD->is_static()) { |
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686 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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687 } else { |
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688 rcvr = LOCALS_OBJECT(0); |
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689 VERIFY_OOP(rcvr); |
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690 } |
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691 // The initial monitor is ours for the taking. |
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692 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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693 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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694 mon->set_obj(rcvr); |
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695 bool success = false; |
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696 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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697 markOop mark = rcvr->mark(); |
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698 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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699 // Implies UseBiasedLocking. |
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700 if (mark->has_bias_pattern()) { |
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701 uintptr_t thread_ident; |
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702 uintptr_t anticipated_bias_locking_value; |
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703 thread_ident = (uintptr_t)istate->thread(); |
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704 anticipated_bias_locking_value = |
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705 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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706 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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707 |
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708 if (anticipated_bias_locking_value == 0) { |
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709 // Already biased towards this thread, nothing to do. |
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710 if (PrintBiasedLockingStatistics) { |
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711 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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712 } |
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713 success = true; |
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714 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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715 // Try to revoke bias. |
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716 markOop header = rcvr->klass()->prototype_header(); |
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717 if (hash != markOopDesc::no_hash) { |
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718 header = header->copy_set_hash(hash); |
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719 } |
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720 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
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721 if (PrintBiasedLockingStatistics) |
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722 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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723 } |
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724 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
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725 // Try to rebias. |
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726 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
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727 if (hash != markOopDesc::no_hash) { |
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728 new_header = new_header->copy_set_hash(hash); |
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729 } |
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730 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
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731 if (PrintBiasedLockingStatistics) { |
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732 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
0 | 733 } |
734 } else { | |
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735 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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736 } |
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737 success = true; |
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738 } else { |
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739 // Try to bias towards thread in case object is anonymously biased. |
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740 markOop header = (markOop) ((uintptr_t) mark & |
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741 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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742 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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743 if (hash != markOopDesc::no_hash) { |
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744 header = header->copy_set_hash(hash); |
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745 } |
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746 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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747 // Debugging hint. |
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748 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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749 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
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750 if (PrintBiasedLockingStatistics) { |
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751 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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752 } |
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753 } else { |
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754 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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755 } |
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756 success = true; |
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757 } |
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758 } |
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759 |
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760 // Traditional lightweight locking. |
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761 if (!success) { |
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762 markOop displaced = rcvr->mark()->set_unlocked(); |
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763 mon->lock()->set_displaced_header(displaced); |
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764 bool call_vm = UseHeavyMonitors; |
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765 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
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766 // Is it simple recursive case? |
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767 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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768 mon->lock()->set_displaced_header(NULL); |
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769 } else { |
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770 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
0 | 771 } |
772 } | |
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773 } |
0 | 774 } |
775 THREAD->clr_do_not_unlock(); | |
776 | |
777 // Notify jvmti | |
778 #ifdef VM_JVMTI | |
779 if (_jvmti_interp_events) { | |
780 // Whenever JVMTI puts a thread in interp_only_mode, method | |
781 // entry/exit events are sent for that thread to track stack depth. | |
782 if (THREAD->is_interp_only_mode()) { | |
783 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
784 handle_exception); | |
785 } | |
786 } | |
787 #endif /* VM_JVMTI */ | |
788 | |
789 goto run; | |
790 } | |
791 | |
792 case popping_frame: { | |
793 // returned from a java call to pop the frame, restart the call | |
794 // clear the message so we don't confuse ourselves later | |
795 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
796 istate->set_msg(no_request); | |
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797 if (_compiling) { |
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798 // Set MDX back to the ProfileData of the invoke bytecode that will be |
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799 // restarted. |
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800 SET_MDX(NULL); |
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801 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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802 } |
0 | 803 THREAD->clr_pop_frame_in_process(); |
804 goto run; | |
805 } | |
806 | |
807 case method_resume: { | |
808 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
809 // resume | |
810 os::breakpoint(); | |
811 } | |
812 #ifdef HACK | |
813 { | |
814 ResourceMark rm; | |
815 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
816 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
817 tty->print_cr("resume: depth %d bci: %d", | |
818 (istate->_stack_base - istate->_stack) , | |
819 istate->_bcp - istate->_method->code_base()); | |
820 interesting = true; | |
821 } | |
822 } | |
823 #endif // HACK | |
824 // returned from a java call, continue executing. | |
825 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
826 goto handle_Pop_Frame; | |
827 } | |
14400
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828 if (THREAD->jvmti_thread_state() && |
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829 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
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830 goto handle_Early_Return; |
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831 } |
0 | 832 |
833 if (THREAD->has_pending_exception()) goto handle_exception; | |
834 // Update the pc by the saved amount of the invoke bytecode size | |
835 UPDATE_PC(istate->bcp_advance()); | |
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836 |
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837 if (_compiling) { |
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838 // Get or create profile data. Check for pending (async) exceptions. |
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839 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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840 } |
0 | 841 goto run; |
842 } | |
843 | |
844 case deopt_resume2: { | |
845 // Returned from an opcode that will reexecute. Deopt was | |
846 // a result of a PopFrame request. | |
847 // | |
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848 |
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849 if (_compiling) { |
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850 // Get or create profile data. Check for pending (async) exceptions. |
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851 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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852 } |
0 | 853 goto run; |
854 } | |
855 | |
856 case deopt_resume: { | |
857 // Returned from an opcode that has completed. The stack has | |
858 // the result all we need to do is skip across the bytecode | |
859 // and continue (assuming there is no exception pending) | |
860 // | |
861 // compute continuation length | |
862 // | |
863 // Note: it is possible to deopt at a return_register_finalizer opcode | |
864 // because this requires entering the vm to do the registering. While the | |
865 // opcode is complete we can't advance because there are no more opcodes | |
866 // much like trying to deopt at a poll return. In that has we simply | |
867 // get out of here | |
868 // | |
2142 | 869 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
0 | 870 // this will do the right thing even if an exception is pending. |
871 goto handle_return; | |
872 } | |
2142 | 873 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
0 | 874 if (THREAD->has_pending_exception()) goto handle_exception; |
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875 |
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876 if (_compiling) { |
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877 // Get or create profile data. Check for pending (async) exceptions. |
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878 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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879 } |
0 | 880 goto run; |
881 } | |
882 case got_monitors: { | |
883 // continue locking now that we have a monitor to use | |
884 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
885 oop lockee = STACK_OBJECT(-1); | |
1681
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886 VERIFY_OOP(lockee); |
0 | 887 // derefing's lockee ought to provoke implicit null check |
888 // find a free monitor | |
889 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
890 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
891 entry->set_obj(lockee); | |
14395
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892 bool success = false; |
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893 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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894 |
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895 markOop mark = lockee->mark(); |
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896 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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897 // implies UseBiasedLocking |
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898 if (mark->has_bias_pattern()) { |
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899 uintptr_t thread_ident; |
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900 uintptr_t anticipated_bias_locking_value; |
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901 thread_ident = (uintptr_t)istate->thread(); |
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902 anticipated_bias_locking_value = |
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903 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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904 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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905 |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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906 if (anticipated_bias_locking_value == 0) { |
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907 // already biased towards this thread, nothing to do |
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908 if (PrintBiasedLockingStatistics) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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909 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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910 } |
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|
911 success = true; |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
912 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
913 // try revoke bias |
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|
914 markOop header = lockee->klass()->prototype_header(); |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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915 if (hash != markOopDesc::no_hash) { |
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|
916 header = header->copy_set_hash(hash); |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
917 } |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
918 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
919 if (PrintBiasedLockingStatistics) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
920 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
921 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
922 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
923 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
924 // try rebias |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
925 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
926 if (hash != markOopDesc::no_hash) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
927 new_header = new_header->copy_set_hash(hash); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
928 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
929 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
930 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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changeset
|
931 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
932 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
933 } else { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
934 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
935 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
936 success = true; |
0 | 937 } else { |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
938 // try to bias towards thread in case object is anonymously biased |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
939 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
940 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
941 if (hash != markOopDesc::no_hash) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
942 header = header->copy_set_hash(hash); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
943 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
944 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
945 // debugging hint |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
946 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
947 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
948 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
949 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
950 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
951 } else { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
952 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
953 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
954 success = true; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
955 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
956 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
957 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
958 // traditional lightweight locking |
48d3d0eb193b
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|
959 if (!success) { |
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|
960 markOop displaced = lockee->mark()->set_unlocked(); |
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|
961 entry->lock()->set_displaced_header(displaced); |
48d3d0eb193b
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|
962 bool call_vm = UseHeavyMonitors; |
48d3d0eb193b
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|
963 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
48d3d0eb193b
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|
964 // Is it simple recursive case? |
48d3d0eb193b
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|
965 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
48d3d0eb193b
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|
966 entry->lock()->set_displaced_header(NULL); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
967 } else { |
48d3d0eb193b
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|
968 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
48d3d0eb193b
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|
969 } |
0 | 970 } |
971 } | |
972 UPDATE_PC_AND_TOS(1, -1); | |
973 goto run; | |
974 } | |
975 default: { | |
976 fatal("Unexpected message from frame manager"); | |
977 } | |
978 } | |
979 | |
980 run: | |
981 | |
982 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
983 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
984 #ifdef PREFETCH_OPCCODE | |
985 opcode = *pc; /* prefetch first opcode */ | |
986 #endif | |
987 | |
988 #ifndef USELABELS | |
989 while (1) | |
990 #endif | |
991 { | |
992 #ifndef PREFETCH_OPCCODE | |
993 opcode = *pc; | |
994 #endif | |
995 // Seems like this happens twice per opcode. At worst this is only | |
996 // need at entry to the loop. | |
997 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
998 /* Using this labels avoids double breakpoints when quickening and | |
999 * when returing from transition frames. | |
1000 */ | |
1001 opcode_switch: | |
1002 assert(istate == orig, "Corrupted istate"); | |
1003 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
1004 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
1005 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
1006 | |
1007 #ifdef USELABELS | |
1008 DISPATCH(opcode); | |
1009 #else | |
1010 switch (opcode) | |
1011 #endif | |
1012 { | |
1013 CASE(_nop): | |
1014 UPDATE_PC_AND_CONTINUE(1); | |
1015 | |
1016 /* Push miscellaneous constants onto the stack. */ | |
1017 | |
1018 CASE(_aconst_null): | |
1019 SET_STACK_OBJECT(NULL, 0); | |
1020 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1021 | |
1022 #undef OPC_CONST_n | |
1023 #define OPC_CONST_n(opcode, const_type, value) \ | |
1024 CASE(opcode): \ | |
1025 SET_STACK_ ## const_type(value, 0); \ | |
1026 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1027 | |
1028 OPC_CONST_n(_iconst_m1, INT, -1); | |
1029 OPC_CONST_n(_iconst_0, INT, 0); | |
1030 OPC_CONST_n(_iconst_1, INT, 1); | |
1031 OPC_CONST_n(_iconst_2, INT, 2); | |
1032 OPC_CONST_n(_iconst_3, INT, 3); | |
1033 OPC_CONST_n(_iconst_4, INT, 4); | |
1034 OPC_CONST_n(_iconst_5, INT, 5); | |
1035 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
1036 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
1037 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
1038 | |
1039 #undef OPC_CONST2_n | |
1040 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
1041 CASE(_##opcname): \ | |
1042 { \ | |
1043 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
1044 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1045 } | |
1046 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
1047 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
1048 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
1049 OPC_CONST2_n(lconst_1, One, long, LONG); | |
1050 | |
1051 /* Load constant from constant pool: */ | |
1052 | |
1053 /* Push a 1-byte signed integer value onto the stack. */ | |
1054 CASE(_bipush): | |
1055 SET_STACK_INT((jbyte)(pc[1]), 0); | |
1056 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1057 | |
1058 /* Push a 2-byte signed integer constant onto the stack. */ | |
1059 CASE(_sipush): | |
1060 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
1061 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
1062 | |
1063 /* load from local variable */ | |
1064 | |
1065 CASE(_aload): | |
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1066 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
0 | 1067 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
1068 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1069 | |
1070 CASE(_iload): | |
1071 CASE(_fload): | |
1072 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
1073 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1074 | |
1075 CASE(_lload): | |
1076 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
1077 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1078 | |
1079 CASE(_dload): | |
1080 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
1081 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1082 | |
1083 #undef OPC_LOAD_n | |
1084 #define OPC_LOAD_n(num) \ | |
1085 CASE(_aload_##num): \ | |
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1086 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
0 | 1087 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
1088 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1089 \ | |
1090 CASE(_iload_##num): \ | |
1091 CASE(_fload_##num): \ | |
1092 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
1093 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1094 \ | |
1095 CASE(_lload_##num): \ | |
1096 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
1097 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1098 CASE(_dload_##num): \ | |
1099 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
1100 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1101 | |
1102 OPC_LOAD_n(0); | |
1103 OPC_LOAD_n(1); | |
1104 OPC_LOAD_n(2); | |
1105 OPC_LOAD_n(3); | |
1106 | |
1107 /* store to a local variable */ | |
1108 | |
1109 CASE(_astore): | |
1110 astore(topOfStack, -1, locals, pc[1]); | |
1111 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1112 | |
1113 CASE(_istore): | |
1114 CASE(_fstore): | |
1115 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
1116 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1117 | |
1118 CASE(_lstore): | |
1119 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
1120 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1121 | |
1122 CASE(_dstore): | |
1123 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
1124 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1125 | |
1126 CASE(_wide): { | |
1127 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
1128 | |
1129 opcode = pc[1]; | |
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1130 |
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1131 // Wide and it's sub-bytecode are counted as separate instructions. If we |
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1132 // don't account for this here, the bytecode trace skips the next bytecode. |
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1133 DO_UPDATE_INSTRUCTION_COUNT(opcode); |
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1134 |
0 | 1135 switch(opcode) { |
1136 case Bytecodes::_aload: | |
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1137 VERIFY_OOP(LOCALS_OBJECT(reg)); |
0 | 1138 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
1139 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1140 | |
1141 case Bytecodes::_iload: | |
1142 case Bytecodes::_fload: | |
1143 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
1144 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1145 | |
1146 case Bytecodes::_lload: | |
1147 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1148 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1149 | |
1150 case Bytecodes::_dload: | |
1151 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1152 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1153 | |
1154 case Bytecodes::_astore: | |
1155 astore(topOfStack, -1, locals, reg); | |
1156 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1157 | |
1158 case Bytecodes::_istore: | |
1159 case Bytecodes::_fstore: | |
1160 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
1161 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1162 | |
1163 case Bytecodes::_lstore: | |
1164 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
1165 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1166 | |
1167 case Bytecodes::_dstore: | |
1168 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
1169 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1170 | |
1171 case Bytecodes::_iinc: { | |
1172 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
1173 // Be nice to see what this generates.... QQQ | |
1174 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
1175 UPDATE_PC_AND_CONTINUE(6); | |
1176 } | |
1177 case Bytecodes::_ret: | |
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1178 // Profile ret. |
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1179 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(reg)))); |
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1180 // Now, update the pc. |
0 | 1181 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); |
1182 UPDATE_PC_AND_CONTINUE(0); | |
1183 default: | |
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1184 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode", note_no_trap); |
0 | 1185 } |
1186 } | |
1187 | |
1188 | |
1189 #undef OPC_STORE_n | |
1190 #define OPC_STORE_n(num) \ | |
1191 CASE(_astore_##num): \ | |
1192 astore(topOfStack, -1, locals, num); \ | |
1193 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1194 CASE(_istore_##num): \ | |
1195 CASE(_fstore_##num): \ | |
1196 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
1197 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1198 | |
1199 OPC_STORE_n(0); | |
1200 OPC_STORE_n(1); | |
1201 OPC_STORE_n(2); | |
1202 OPC_STORE_n(3); | |
1203 | |
1204 #undef OPC_DSTORE_n | |
1205 #define OPC_DSTORE_n(num) \ | |
1206 CASE(_dstore_##num): \ | |
1207 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
1208 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1209 CASE(_lstore_##num): \ | |
1210 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
1211 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1212 | |
1213 OPC_DSTORE_n(0); | |
1214 OPC_DSTORE_n(1); | |
1215 OPC_DSTORE_n(2); | |
1216 OPC_DSTORE_n(3); | |
1217 | |
1218 /* stack pop, dup, and insert opcodes */ | |
1219 | |
1220 | |
1221 CASE(_pop): /* Discard the top item on the stack */ | |
1222 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1223 | |
1224 | |
1225 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
1226 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1227 | |
1228 | |
1229 CASE(_dup): /* Duplicate the top item on the stack */ | |
1230 dup(topOfStack); | |
1231 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1232 | |
1233 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
1234 dup2(topOfStack); | |
1235 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1236 | |
1237 CASE(_dup_x1): /* insert top word two down */ | |
1238 dup_x1(topOfStack); | |
1239 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1240 | |
1241 CASE(_dup_x2): /* insert top word three down */ | |
1242 dup_x2(topOfStack); | |
1243 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1244 | |
1245 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
1246 dup2_x1(topOfStack); | |
1247 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1248 | |
1249 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
1250 dup2_x2(topOfStack); | |
1251 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1252 | |
1253 CASE(_swap): { /* swap top two elements on the stack */ | |
1254 swap(topOfStack); | |
1255 UPDATE_PC_AND_CONTINUE(1); | |
1256 } | |
1257 | |
1258 /* Perform various binary integer operations */ | |
1259 | |
1260 #undef OPC_INT_BINARY | |
1261 #define OPC_INT_BINARY(opcname, opname, test) \ | |
1262 CASE(_i##opcname): \ | |
1263 if (test && (STACK_INT(-1) == 0)) { \ | |
1264 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1265 "/ by zero", note_div0Check_trap); \ |
0 | 1266 } \ |
1267 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1268 STACK_INT(-1)), \ | |
1269 -2); \ | |
1270 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1271 CASE(_l##opcname): \ | |
1272 { \ | |
1273 if (test) { \ | |
1274 jlong l1 = STACK_LONG(-1); \ | |
1275 if (VMlongEqz(l1)) { \ | |
1276 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1277 "/ by long zero", note_div0Check_trap); \ |
0 | 1278 } \ |
1279 } \ | |
1280 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
1281 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
1282 STACK_LONG(-1)), \ | |
1283 -3); \ | |
1284 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1285 } | |
1286 | |
1287 OPC_INT_BINARY(add, Add, 0); | |
1288 OPC_INT_BINARY(sub, Sub, 0); | |
1289 OPC_INT_BINARY(mul, Mul, 0); | |
1290 OPC_INT_BINARY(and, And, 0); | |
1291 OPC_INT_BINARY(or, Or, 0); | |
1292 OPC_INT_BINARY(xor, Xor, 0); | |
1293 OPC_INT_BINARY(div, Div, 1); | |
1294 OPC_INT_BINARY(rem, Rem, 1); | |
1295 | |
1296 | |
1297 /* Perform various binary floating number operations */ | |
1298 /* On some machine/platforms/compilers div zero check can be implicit */ | |
1299 | |
1300 #undef OPC_FLOAT_BINARY | |
1301 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
1302 CASE(_d##opcname): { \ | |
1303 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
1304 STACK_DOUBLE(-1)), \ | |
1305 -3); \ | |
1306 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1307 } \ | |
1308 CASE(_f##opcname): \ | |
1309 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
1310 STACK_FLOAT(-1)), \ | |
1311 -2); \ | |
1312 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1313 | |
1314 | |
1315 OPC_FLOAT_BINARY(add, Add); | |
1316 OPC_FLOAT_BINARY(sub, Sub); | |
1317 OPC_FLOAT_BINARY(mul, Mul); | |
1318 OPC_FLOAT_BINARY(div, Div); | |
1319 OPC_FLOAT_BINARY(rem, Rem); | |
1320 | |
1321 /* Shift operations | |
1322 * Shift left int and long: ishl, lshl | |
1323 * Logical shift right int and long w/zero extension: iushr, lushr | |
1324 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
1325 */ | |
1326 | |
1327 #undef OPC_SHIFT_BINARY | |
1328 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
1329 CASE(_i##opcname): \ | |
1330 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1331 STACK_INT(-1)), \ | |
1332 -2); \ | |
1333 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1334 CASE(_l##opcname): \ | |
1335 { \ | |
1336 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
1337 STACK_INT(-1)), \ | |
1338 -2); \ | |
1339 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1340 } | |
1341 | |
1342 OPC_SHIFT_BINARY(shl, Shl); | |
1343 OPC_SHIFT_BINARY(shr, Shr); | |
1344 OPC_SHIFT_BINARY(ushr, Ushr); | |
1345 | |
1346 /* Increment local variable by constant */ | |
1347 CASE(_iinc): | |
1348 { | |
1349 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
1350 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
1351 UPDATE_PC_AND_CONTINUE(3); | |
1352 } | |
1353 | |
1354 /* negate the value on the top of the stack */ | |
1355 | |
1356 CASE(_ineg): | |
1357 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
1358 UPDATE_PC_AND_CONTINUE(1); | |
1359 | |
1360 CASE(_fneg): | |
1361 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
1362 UPDATE_PC_AND_CONTINUE(1); | |
1363 | |
1364 CASE(_lneg): | |
1365 { | |
1366 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
1367 UPDATE_PC_AND_CONTINUE(1); | |
1368 } | |
1369 | |
1370 CASE(_dneg): | |
1371 { | |
1372 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
1373 UPDATE_PC_AND_CONTINUE(1); | |
1374 } | |
1375 | |
1376 /* Conversion operations */ | |
1377 | |
1378 CASE(_i2f): /* convert top of stack int to float */ | |
1379 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
1380 UPDATE_PC_AND_CONTINUE(1); | |
1381 | |
1382 CASE(_i2l): /* convert top of stack int to long */ | |
1383 { | |
1384 // this is ugly QQQ | |
1385 jlong r = VMint2Long(STACK_INT(-1)); | |
1386 MORE_STACK(-1); // Pop | |
1387 SET_STACK_LONG(r, 1); | |
1388 | |
1389 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1390 } | |
1391 | |
1392 CASE(_i2d): /* convert top of stack int to double */ | |
1393 { | |
1394 // this is ugly QQQ (why cast to jlong?? ) | |
1395 jdouble r = (jlong)STACK_INT(-1); | |
1396 MORE_STACK(-1); // Pop | |
1397 SET_STACK_DOUBLE(r, 1); | |
1398 | |
1399 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1400 } | |
1401 | |
1402 CASE(_l2i): /* convert top of stack long to int */ | |
1403 { | |
1404 jint r = VMlong2Int(STACK_LONG(-1)); | |
1405 MORE_STACK(-2); // Pop | |
1406 SET_STACK_INT(r, 0); | |
1407 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1408 } | |
1409 | |
1410 CASE(_l2f): /* convert top of stack long to float */ | |
1411 { | |
1412 jlong r = STACK_LONG(-1); | |
1413 MORE_STACK(-2); // Pop | |
1414 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
1415 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1416 } | |
1417 | |
1418 CASE(_l2d): /* convert top of stack long to double */ | |
1419 { | |
1420 jlong r = STACK_LONG(-1); | |
1421 MORE_STACK(-2); // Pop | |
1422 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
1423 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1424 } | |
1425 | |
1426 CASE(_f2i): /* Convert top of stack float to int */ | |
1427 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
1428 UPDATE_PC_AND_CONTINUE(1); | |
1429 | |
1430 CASE(_f2l): /* convert top of stack float to long */ | |
1431 { | |
1432 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
1433 MORE_STACK(-1); // POP | |
1434 SET_STACK_LONG(r, 1); | |
1435 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1436 } | |
1437 | |
1438 CASE(_f2d): /* convert top of stack float to double */ | |
1439 { | |
1440 jfloat f; | |
1441 jdouble r; | |
1442 f = STACK_FLOAT(-1); | |
1443 r = (jdouble) f; | |
1444 MORE_STACK(-1); // POP | |
1445 SET_STACK_DOUBLE(r, 1); | |
1446 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1447 } | |
1448 | |
1449 CASE(_d2i): /* convert top of stack double to int */ | |
1450 { | |
1451 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
1452 MORE_STACK(-2); | |
1453 SET_STACK_INT(r1, 0); | |
1454 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1455 } | |
1456 | |
1457 CASE(_d2f): /* convert top of stack double to float */ | |
1458 { | |
1459 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
1460 MORE_STACK(-2); | |
1461 SET_STACK_FLOAT(r1, 0); | |
1462 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1463 } | |
1464 | |
1465 CASE(_d2l): /* convert top of stack double to long */ | |
1466 { | |
1467 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
1468 MORE_STACK(-2); | |
1469 SET_STACK_LONG(r1, 1); | |
1470 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1471 } | |
1472 | |
1473 CASE(_i2b): | |
1474 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
1475 UPDATE_PC_AND_CONTINUE(1); | |
1476 | |
1477 CASE(_i2c): | |
1478 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
1479 UPDATE_PC_AND_CONTINUE(1); | |
1480 | |
1481 CASE(_i2s): | |
1482 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
1483 UPDATE_PC_AND_CONTINUE(1); | |
1484 | |
1485 /* comparison operators */ | |
1486 | |
1487 | |
1488 #define COMPARISON_OP(name, comparison) \ | |
1489 CASE(_if_icmp##name): { \ | |
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1490 const bool cmp = (STACK_INT(-2) comparison STACK_INT(-1)); \ |
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1491 int skip = cmp \ |
0 | 1492 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1493 address branch_pc = pc; \ | |
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1494 /* Profile branch. */ \ |
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1495 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1496 UPDATE_PC_AND_TOS(skip, -2); \ |
1497 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1498 CONTINUE; \ | |
1499 } \ | |
1500 CASE(_if##name): { \ | |
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1501 const bool cmp = (STACK_INT(-1) comparison 0); \ |
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1502 int skip = cmp \ |
0 | 1503 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1504 address branch_pc = pc; \ | |
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1505 /* Profile branch. */ \ |
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1506 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1507 UPDATE_PC_AND_TOS(skip, -1); \ |
1508 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1509 CONTINUE; \ | |
1510 } | |
1511 | |
1512 #define COMPARISON_OP2(name, comparison) \ | |
1513 COMPARISON_OP(name, comparison) \ | |
1514 CASE(_if_acmp##name): { \ | |
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1515 const bool cmp = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)); \ |
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1516 int skip = cmp \ |
0 | 1517 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1518 address branch_pc = pc; \ | |
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1519 /* Profile branch. */ \ |
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1520 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1521 UPDATE_PC_AND_TOS(skip, -2); \ |
1522 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1523 CONTINUE; \ | |
1524 } | |
1525 | |
1526 #define NULL_COMPARISON_NOT_OP(name) \ | |
1527 CASE(_if##name): { \ | |
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1528 const bool cmp = (!(STACK_OBJECT(-1) == NULL)); \ |
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1529 int skip = cmp \ |
0 | 1530 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1531 address branch_pc = pc; \ | |
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1532 /* Profile branch. */ \ |
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1533 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1534 UPDATE_PC_AND_TOS(skip, -1); \ |
1535 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1536 CONTINUE; \ | |
1537 } | |
1538 | |
1539 #define NULL_COMPARISON_OP(name) \ | |
1540 CASE(_if##name): { \ | |
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1541 const bool cmp = ((STACK_OBJECT(-1) == NULL)); \ |
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1542 int skip = cmp \ |
0 | 1543 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1544 address branch_pc = pc; \ | |
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1545 /* Profile branch. */ \ |
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1546 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1547 UPDATE_PC_AND_TOS(skip, -1); \ |
1548 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1549 CONTINUE; \ | |
1550 } | |
1551 COMPARISON_OP(lt, <); | |
1552 COMPARISON_OP(gt, >); | |
1553 COMPARISON_OP(le, <=); | |
1554 COMPARISON_OP(ge, >=); | |
1555 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
1556 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
1557 NULL_COMPARISON_OP(null); | |
1558 NULL_COMPARISON_NOT_OP(nonnull); | |
1559 | |
1560 /* Goto pc at specified offset in switch table. */ | |
1561 | |
1562 CASE(_tableswitch): { | |
1563 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1564 int32_t key = STACK_INT(-1); | |
1565 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
1566 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
1567 int32_t skip; | |
1568 key -= low; | |
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1569 if (((uint32_t) key > (uint32_t)(high - low))) { |
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1570 key = -1; |
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1571 skip = Bytes::get_Java_u4((address)&lpc[0]); |
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1572 } else { |
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1573 skip = Bytes::get_Java_u4((address)&lpc[key + 3]); |
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1574 } |
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|
1575 // Profile switch. |
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|
1576 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/key); |
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1577 // Does this really need a full backedge check (osr)? |
0 | 1578 address branch_pc = pc; |
1579 UPDATE_PC_AND_TOS(skip, -1); | |
1580 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1581 CONTINUE; | |
1582 } | |
1583 | |
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1584 /* Goto pc whose table entry matches specified key. */ |
0 | 1585 |
1586 CASE(_lookupswitch): { | |
1587 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1588 int32_t key = STACK_INT(-1); | |
1589 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
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|
1590 // Remember index. |
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|
1591 int index = -1; |
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|
1592 int newindex = 0; |
0 | 1593 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); |
1594 while (--npairs >= 0) { | |
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|
1595 lpc += 2; |
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|
1596 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { |
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|
1597 skip = Bytes::get_Java_u4((address)&lpc[1]); |
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|
1598 index = newindex; |
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|
1599 break; |
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|
1600 } |
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|
1601 newindex += 1; |
0 | 1602 } |
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|
1603 // Profile switch. |
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|
1604 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/index); |
0 | 1605 address branch_pc = pc; |
1606 UPDATE_PC_AND_TOS(skip, -1); | |
1607 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1608 CONTINUE; | |
1609 } | |
1610 | |
1611 CASE(_fcmpl): | |
1612 CASE(_fcmpg): | |
1613 { | |
1614 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
1615 STACK_FLOAT(-1), | |
1616 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
1617 -2); | |
1618 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1619 } | |
1620 | |
1621 CASE(_dcmpl): | |
1622 CASE(_dcmpg): | |
1623 { | |
1624 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
1625 STACK_DOUBLE(-1), | |
1626 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
1627 MORE_STACK(-4); // Pop | |
1628 SET_STACK_INT(r, 0); | |
1629 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1630 } | |
1631 | |
1632 CASE(_lcmp): | |
1633 { | |
1634 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
1635 MORE_STACK(-4); | |
1636 SET_STACK_INT(r, 0); | |
1637 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1638 } | |
1639 | |
1640 | |
1641 /* Return from a method */ | |
1642 | |
1643 CASE(_areturn): | |
1644 CASE(_ireturn): | |
1645 CASE(_freturn): | |
1646 { | |
1647 // Allow a safepoint before returning to frame manager. | |
1648 SAFEPOINT; | |
1649 | |
1650 goto handle_return; | |
1651 } | |
1652 | |
1653 CASE(_lreturn): | |
1654 CASE(_dreturn): | |
1655 { | |
1656 // Allow a safepoint before returning to frame manager. | |
1657 SAFEPOINT; | |
1658 goto handle_return; | |
1659 } | |
1660 | |
1661 CASE(_return_register_finalizer): { | |
1662 | |
1663 oop rcvr = LOCALS_OBJECT(0); | |
1681
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1664 VERIFY_OOP(rcvr); |
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1665 if (rcvr->klass()->has_finalizer()) { |
0 | 1666 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
1667 } | |
1668 goto handle_return; | |
1669 } | |
1670 CASE(_return): { | |
1671 | |
1672 // Allow a safepoint before returning to frame manager. | |
1673 SAFEPOINT; | |
1674 goto handle_return; | |
1675 } | |
1676 | |
1677 /* Array access byte-codes */ | |
1678 | |
1679 /* Every array access byte-code starts out like this */ | |
1680 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
1681 #define ARRAY_INTRO(arrayOff) \ | |
1682 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
1683 jint index = STACK_INT(arrayOff + 1); \ | |
1684 char message[jintAsStringSize]; \ | |
1685 CHECK_NULL(arrObj); \ | |
1686 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
1687 sprintf(message, "%d", index); \ | |
1688 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
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1689 message, note_rangeCheck_trap); \ |
0 | 1690 } |
1691 | |
1692 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
1693 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
1694 { \ | |
1695 ARRAY_INTRO(-2); \ | |
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1696 (void)extra; \ |
0 | 1697 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
1698 -2); \ | |
1699 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1700 } | |
1701 | |
1702 /* 64-bit loads */ | |
1703 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
1704 { \ | |
1705 ARRAY_INTRO(-2); \ | |
1706 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
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|
1707 (void)extra; \ |
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|
1708 UPDATE_PC_AND_CONTINUE(1); \ |
0 | 1709 } |
1710 | |
1711 CASE(_iaload): | |
1712 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
1713 CASE(_faload): | |
1714 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
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1715 CASE(_aaload): { |
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|
1716 ARRAY_INTRO(-2); |
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|
1717 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
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1718 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
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|
1719 } |
0 | 1720 CASE(_baload): |
1721 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1722 CASE(_caload): | |
1723 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1724 CASE(_saload): | |
1725 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1726 CASE(_laload): | |
1727 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
1728 CASE(_daload): | |
1729 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1730 | |
1731 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
1732 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
1733 { \ | |
1734 ARRAY_INTRO(-3); \ | |
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1735 (void)extra; \ |
0 | 1736 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1737 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
1738 } | |
1739 | |
1740 /* 64-bit stores */ | |
1741 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
1742 { \ | |
1743 ARRAY_INTRO(-4); \ | |
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|
1744 (void)extra; \ |
0 | 1745 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1746 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
1747 } | |
1748 | |
1749 CASE(_iastore): | |
1750 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
1751 CASE(_fastore): | |
1752 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
1753 /* | |
1754 * This one looks different because of the assignability check | |
1755 */ | |
1756 CASE(_aastore): { | |
1757 oop rhsObject = STACK_OBJECT(-1); | |
1681
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1758 VERIFY_OOP(rhsObject); |
0 | 1759 ARRAY_INTRO( -3); |
1760 // arrObj, index are set | |
1761 if (rhsObject != NULL) { | |
1762 /* Check assignability of rhsObject into arrObj */ | |
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1763 Klass* rhsKlass = rhsObject->klass(); // EBX (subclass) |
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1764 Klass* elemKlass = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
0 | 1765 // |
1766 // Check for compatibilty. This check must not GC!! | |
1767 // Seems way more expensive now that we must dispatch | |
1768 // | |
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1769 if (rhsKlass != elemKlass && !rhsKlass->is_subtype_of(elemKlass)) { // ebx->is... |
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1770 // Decrement counter if subtype check failed. |
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1771 BI_PROFILE_SUBTYPECHECK_FAILED(rhsKlass); |
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1772 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), "", note_arrayCheck_trap); |
0 | 1773 } |
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1774 // Profile checkcast with null_seen and receiver. |
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1775 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, rhsKlass); |
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1776 } else { |
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1777 // Profile checkcast with null_seen and receiver. |
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1778 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
0 | 1779 } |
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1780 ((objArrayOop) arrObj)->obj_at_put(index, rhsObject); |
0 | 1781 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
1782 } | |
1783 CASE(_bastore): | |
1784 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1785 CASE(_castore): | |
1786 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1787 CASE(_sastore): | |
1788 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1789 CASE(_lastore): | |
1790 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
1791 CASE(_dastore): | |
1792 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1793 | |
1794 CASE(_arraylength): | |
1795 { | |
1796 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
1797 CHECK_NULL(ary); | |
1798 SET_STACK_INT(ary->length(), -1); | |
1799 UPDATE_PC_AND_CONTINUE(1); | |
1800 } | |
1801 | |
1802 /* monitorenter and monitorexit for locking/unlocking an object */ | |
1803 | |
1804 CASE(_monitorenter): { | |
1805 oop lockee = STACK_OBJECT(-1); | |
1806 // derefing's lockee ought to provoke implicit null check | |
1807 CHECK_NULL(lockee); | |
1808 // find a free monitor or one already allocated for this object | |
1809 // if we find a matching object then we need a new monitor | |
1810 // since this is recursive enter | |
1811 BasicObjectLock* limit = istate->monitor_base(); | |
1812 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1813 BasicObjectLock* entry = NULL; | |
1814 while (most_recent != limit ) { | |
1815 if (most_recent->obj() == NULL) entry = most_recent; | |
1816 else if (most_recent->obj() == lockee) break; | |
1817 most_recent++; | |
1818 } | |
1819 if (entry != NULL) { | |
1820 entry->set_obj(lockee); | |
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1821 int success = false; |
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1822 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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1823 |
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1824 markOop mark = lockee->mark(); |
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1825 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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1826 // implies UseBiasedLocking |
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1827 if (mark->has_bias_pattern()) { |
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1828 uintptr_t thread_ident; |
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1829 uintptr_t anticipated_bias_locking_value; |
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1830 thread_ident = (uintptr_t)istate->thread(); |
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1831 anticipated_bias_locking_value = |
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1832 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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1833 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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1834 |
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1835 if (anticipated_bias_locking_value == 0) { |
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1836 // already biased towards this thread, nothing to do |
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1837 if (PrintBiasedLockingStatistics) { |
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1838 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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1839 } |
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1840 success = true; |
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1841 } |
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1842 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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1843 // try revoke bias |
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1844 markOop header = lockee->klass()->prototype_header(); |
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1845 if (hash != markOopDesc::no_hash) { |
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1846 header = header->copy_set_hash(hash); |
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1847 } |
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1848 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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1849 if (PrintBiasedLockingStatistics) |
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1850 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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1851 } |
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1852 } |
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1853 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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1854 // try rebias |
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1855 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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1856 if (hash != markOopDesc::no_hash) { |
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1857 new_header = new_header->copy_set_hash(hash); |
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1858 } |
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1859 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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1860 if (PrintBiasedLockingStatistics) |
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1861 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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1862 } |
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1863 else { |
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1864 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1865 } |
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1866 success = true; |
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1867 } |
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1868 else { |
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1869 // try to bias towards thread in case object is anonymously biased |
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1870 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1871 (uintptr_t)markOopDesc::age_mask_in_place | |
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1872 epoch_mask_in_place)); |
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1873 if (hash != markOopDesc::no_hash) { |
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1874 header = header->copy_set_hash(hash); |
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1875 } |
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1876 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1877 // debugging hint |
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1878 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1879 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1880 if (PrintBiasedLockingStatistics) |
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1881 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1882 } |
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1883 else { |
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1884 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1885 } |
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1886 success = true; |
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1887 } |
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1888 } |
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1889 |
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1890 // traditional lightweight locking |
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1891 if (!success) { |
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1892 markOop displaced = lockee->mark()->set_unlocked(); |
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1893 entry->lock()->set_displaced_header(displaced); |
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1894 bool call_vm = UseHeavyMonitors; |
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1895 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1896 // Is it simple recursive case? |
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1897 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1898 entry->lock()->set_displaced_header(NULL); |
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1899 } else { |
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1900 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1901 } |
0 | 1902 } |
1903 } | |
1904 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1905 } else { | |
1906 istate->set_msg(more_monitors); | |
1907 UPDATE_PC_AND_RETURN(0); // Re-execute | |
1908 } | |
1909 } | |
1910 | |
1911 CASE(_monitorexit): { | |
1912 oop lockee = STACK_OBJECT(-1); | |
1913 CHECK_NULL(lockee); | |
1914 // derefing's lockee ought to provoke implicit null check | |
1915 // find our monitor slot | |
1916 BasicObjectLock* limit = istate->monitor_base(); | |
1917 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1918 while (most_recent != limit ) { | |
1919 if ((most_recent)->obj() == lockee) { | |
1920 BasicLock* lock = most_recent->lock(); | |
1921 markOop header = lock->displaced_header(); | |
1922 most_recent->set_obj(NULL); | |
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1923 if (!lockee->mark()->has_bias_pattern()) { |
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1924 bool call_vm = UseHeavyMonitors; |
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1925 // If it isn't recursive we either must swap old header or call the runtime |
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1926 if (header != NULL || call_vm) { |
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1927 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1928 // restore object for the slow case |
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1929 most_recent->set_obj(lockee); |
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1930 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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|
1931 } |
0 | 1932 } |
1933 } | |
1934 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1935 } | |
1936 most_recent++; | |
1937 } | |
1938 // Need to throw illegal monitor state exception | |
1939 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
2480 | 1940 ShouldNotReachHere(); |
0 | 1941 } |
1942 | |
1943 /* All of the non-quick opcodes. */ | |
1944 | |
1945 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
1946 * constant pool index in the instruction. | |
1947 */ | |
1948 CASE(_getfield): | |
1949 CASE(_getstatic): | |
1950 { | |
1951 u2 index; | |
1952 ConstantPoolCacheEntry* cache; | |
1953 index = Bytes::get_native_u2(pc+1); | |
1954 | |
1955 // QQQ Need to make this as inlined as possible. Probably need to | |
1956 // split all the bytecode cases out so c++ compiler has a chance | |
1957 // for constant prop to fold everything possible away. | |
1958 | |
1959 cache = cp->entry_at(index); | |
1960 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
1961 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
1962 handle_exception); | |
1963 cache = cp->entry_at(index); | |
1964 } | |
1965 | |
1966 #ifdef VM_JVMTI | |
1967 if (_jvmti_interp_events) { | |
1968 int *count_addr; | |
1969 oop obj; | |
1970 // Check to see if a field modification watch has been set | |
1971 // before we take the time to call into the VM. | |
1972 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
1973 if ( *count_addr > 0 ) { | |
1974 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
1975 obj = (oop)NULL; | |
1976 } else { | |
1977 obj = (oop) STACK_OBJECT(-1); | |
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1978 VERIFY_OOP(obj); |
0 | 1979 } |
1980 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
1981 obj, | |
1982 cache), | |
1983 handle_exception); | |
1984 } | |
1985 } | |
1986 #endif /* VM_JVMTI */ | |
1987 | |
1988 oop obj; | |
1989 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
6926 | 1990 Klass* k = cache->f1_as_klass(); |
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1991 obj = k->java_mirror(); |
0 | 1992 MORE_STACK(1); // Assume single slot push |
1993 } else { | |
1994 obj = (oop) STACK_OBJECT(-1); | |
1995 CHECK_NULL(obj); | |
1996 } | |
1997 | |
1998 // | |
1999 // Now store the result on the stack | |
2000 // | |
2001 TosState tos_type = cache->flag_state(); | |
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2002 int field_offset = cache->f2_as_index(); |
0 | 2003 if (cache->is_volatile()) { |
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2004 if (support_IRIW_for_not_multiple_copy_atomic_cpu) { |
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2005 OrderAccess::fence(); |
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2006 } |
0 | 2007 if (tos_type == atos) { |
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2008 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
0 | 2009 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
2010 } else if (tos_type == itos) { | |
2011 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
2012 } else if (tos_type == ltos) { | |
2013 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
2014 MORE_STACK(1); | |
2015 } else if (tos_type == btos) { | |
2016 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
2017 } else if (tos_type == ctos) { | |
2018 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
2019 } else if (tos_type == stos) { | |
2020 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
2021 } else if (tos_type == ftos) { | |
2022 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
2023 } else { | |
2024 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
2025 MORE_STACK(1); | |
2026 } | |
2027 } else { | |
2028 if (tos_type == atos) { | |
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2029 VERIFY_OOP(obj->obj_field(field_offset)); |
0 | 2030 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
2031 } else if (tos_type == itos) { | |
2032 SET_STACK_INT(obj->int_field(field_offset), -1); | |
2033 } else if (tos_type == ltos) { | |
2034 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
2035 MORE_STACK(1); | |
2036 } else if (tos_type == btos) { | |
2037 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
2038 } else if (tos_type == ctos) { | |
2039 SET_STACK_INT(obj->char_field(field_offset), -1); | |
2040 } else if (tos_type == stos) { | |
2041 SET_STACK_INT(obj->short_field(field_offset), -1); | |
2042 } else if (tos_type == ftos) { | |
2043 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
2044 } else { | |
2045 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
2046 MORE_STACK(1); | |
2047 } | |
2048 } | |
2049 | |
2050 UPDATE_PC_AND_CONTINUE(3); | |
2051 } | |
2052 | |
2053 CASE(_putfield): | |
2054 CASE(_putstatic): | |
2055 { | |
2056 u2 index = Bytes::get_native_u2(pc+1); | |
2057 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2058 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2059 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
2060 handle_exception); | |
2061 cache = cp->entry_at(index); | |
2062 } | |
2063 | |
2064 #ifdef VM_JVMTI | |
2065 if (_jvmti_interp_events) { | |
2066 int *count_addr; | |
2067 oop obj; | |
2068 // Check to see if a field modification watch has been set | |
2069 // before we take the time to call into the VM. | |
2070 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
2071 if ( *count_addr > 0 ) { | |
2072 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
2073 obj = (oop)NULL; | |
2074 } | |
2075 else { | |
2076 if (cache->is_long() || cache->is_double()) { | |
2077 obj = (oop) STACK_OBJECT(-3); | |
2078 } else { | |
2079 obj = (oop) STACK_OBJECT(-2); | |
2080 } | |
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2081 VERIFY_OOP(obj); |
0 | 2082 } |
2083 | |
2084 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
2085 obj, | |
2086 cache, | |
2087 (jvalue *)STACK_SLOT(-1)), | |
2088 handle_exception); | |
2089 } | |
2090 } | |
2091 #endif /* VM_JVMTI */ | |
2092 | |
2093 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2094 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2095 | |
2096 oop obj; | |
2097 int count; | |
2098 TosState tos_type = cache->flag_state(); | |
2099 | |
2100 count = -1; | |
2101 if (tos_type == ltos || tos_type == dtos) { | |
2102 --count; | |
2103 } | |
2104 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
6926 | 2105 Klass* k = cache->f1_as_klass(); |
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2106 obj = k->java_mirror(); |
0 | 2107 } else { |
2108 --count; | |
2109 obj = (oop) STACK_OBJECT(count); | |
2110 CHECK_NULL(obj); | |
2111 } | |
2112 | |
2113 // | |
2114 // Now store the result | |
2115 // | |
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2116 int field_offset = cache->f2_as_index(); |
0 | 2117 if (cache->is_volatile()) { |
2118 if (tos_type == itos) { | |
2119 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
2120 } else if (tos_type == atos) { | |
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2121 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2122 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
2123 } else if (tos_type == btos) { | |
2124 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
2125 } else if (tos_type == ltos) { | |
2126 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
2127 } else if (tos_type == ctos) { | |
2128 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
2129 } else if (tos_type == stos) { | |
2130 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
2131 } else if (tos_type == ftos) { | |
2132 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
2133 } else { | |
2134 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2135 } | |
2136 OrderAccess::storeload(); | |
2137 } else { | |
2138 if (tos_type == itos) { | |
2139 obj->int_field_put(field_offset, STACK_INT(-1)); | |
2140 } else if (tos_type == atos) { | |
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2141 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2142 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
2143 } else if (tos_type == btos) { | |
2144 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
2145 } else if (tos_type == ltos) { | |
2146 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
2147 } else if (tos_type == ctos) { | |
2148 obj->char_field_put(field_offset, STACK_INT(-1)); | |
2149 } else if (tos_type == stos) { | |
2150 obj->short_field_put(field_offset, STACK_INT(-1)); | |
2151 } else if (tos_type == ftos) { | |
2152 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
2153 } else { | |
2154 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2155 } | |
2156 } | |
2157 | |
2158 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
2159 } | |
2160 | |
2161 CASE(_new): { | |
2162 u2 index = Bytes::get_Java_u2(pc+1); | |
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2163 ConstantPool* constants = istate->method()->constants(); |
0 | 2164 if (!constants->tag_at(index).is_unresolved_klass()) { |
2165 // Make sure klass is initialized and doesn't have a finalizer | |
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2166 Klass* entry = constants->slot_at(index).get_klass(); |
0 | 2167 assert(entry->is_klass(), "Should be resolved klass"); |
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2168 Klass* k_entry = (Klass*) entry; |
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2169 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
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2170 InstanceKlass* ik = (InstanceKlass*) k_entry; |
0 | 2171 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
2172 size_t obj_size = ik->size_helper(); | |
2173 oop result = NULL; | |
2174 // If the TLAB isn't pre-zeroed then we'll have to do it | |
2175 bool need_zero = !ZeroTLAB; | |
2176 if (UseTLAB) { | |
2177 result = (oop) THREAD->tlab().allocate(obj_size); | |
2178 } | |
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2179 // Disable non-TLAB-based fast-path, because profiling requires that all |
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2180 // allocations go through InterpreterRuntime::_new() if THREAD->tlab().allocate |
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2181 // returns NULL. |
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2182 #ifndef CC_INTERP_PROFILE |
0 | 2183 if (result == NULL) { |
2184 need_zero = true; | |
2185 // Try allocate in shared eden | |
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2186 retry: |
0 | 2187 HeapWord* compare_to = *Universe::heap()->top_addr(); |
2188 HeapWord* new_top = compare_to + obj_size; | |
2189 if (new_top <= *Universe::heap()->end_addr()) { | |
2190 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
2191 goto retry; | |
2192 } | |
2193 result = (oop) compare_to; | |
2194 } | |
2195 } | |
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2196 #endif |
0 | 2197 if (result != NULL) { |
2198 // Initialize object (if nonzero size and need) and then the header | |
2199 if (need_zero ) { | |
2200 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
2201 obj_size -= sizeof(oopDesc) / oopSize; | |
2202 if (obj_size > 0 ) { | |
2203 memset(to_zero, 0, obj_size * HeapWordSize); | |
2204 } | |
2205 } | |
2206 if (UseBiasedLocking) { | |
2207 result->set_mark(ik->prototype_header()); | |
2208 } else { | |
2209 result->set_mark(markOopDesc::prototype()); | |
2210 } | |
167
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2211 result->set_klass_gap(0); |
0 | 2212 result->set_klass(k_entry); |
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2213 // Must prevent reordering of stores for object initialization |
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2214 // with stores that publish the new object. |
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2215 OrderAccess::storestore(); |
0 | 2216 SET_STACK_OBJECT(result, 0); |
2217 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2218 } | |
2219 } | |
2220 } | |
2221 // Slow case allocation | |
2222 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
2223 handle_exception); | |
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2224 // Must prevent reordering of stores for object initialization |
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2225 // with stores that publish the new object. |
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2226 OrderAccess::storestore(); |
0 | 2227 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
2228 THREAD->set_vm_result(NULL); | |
2229 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2230 } | |
2231 CASE(_anewarray): { | |
2232 u2 index = Bytes::get_Java_u2(pc+1); | |
2233 jint size = STACK_INT(-1); | |
2234 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
2235 handle_exception); | |
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2236 // Must prevent reordering of stores for object initialization |
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2237 // with stores that publish the new object. |
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2238 OrderAccess::storestore(); |
0 | 2239 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
2240 THREAD->set_vm_result(NULL); | |
2241 UPDATE_PC_AND_CONTINUE(3); | |
2242 } | |
2243 CASE(_multianewarray): { | |
2244 jint dims = *(pc+3); | |
2245 jint size = STACK_INT(-1); | |
2246 // stack grows down, dimensions are up! | |
2247 jint *dimarray = | |
1509 | 2248 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
2249 Interpreter::stackElementWords-1]; | |
0 | 2250 //adjust pointer to start of stack element |
2251 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
2252 handle_exception); | |
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2253 // Must prevent reordering of stores for object initialization |
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2254 // with stores that publish the new object. |
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2255 OrderAccess::storestore(); |
0 | 2256 SET_STACK_OBJECT(THREAD->vm_result(), -dims); |
2257 THREAD->set_vm_result(NULL); | |
2258 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
2259 } | |
2260 CASE(_checkcast): | |
2261 if (STACK_OBJECT(-1) != NULL) { | |
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2262 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2263 u2 index = Bytes::get_Java_u2(pc+1); |
2264 // Constant pool may have actual klass or unresolved klass. If it is | |
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2265 // unresolved we must resolve it. |
0 | 2266 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
2267 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2268 } | |
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2269 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2270 Klass* objKlass = STACK_OBJECT(-1)->klass(); // ebx |
0 | 2271 // |
2272 // Check for compatibilty. This check must not GC!! | |
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2273 // Seems way more expensive now that we must dispatch. |
0 | 2274 // |
14420
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2275 if (objKlass != klassOf && !objKlass->is_subtype_of(klassOf)) { |
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2276 // Decrement counter at checkcast. |
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2277 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
0 | 2278 ResourceMark rm(THREAD); |
14420
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2279 const char* objName = objKlass->external_name(); |
6983 | 2280 const char* klassName = klassOf->external_name(); |
0 | 2281 char* message = SharedRuntime::generate_class_cast_message( |
2282 objName, klassName); | |
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|
2283 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message, note_classCheck_trap); |
0 | 2284 } |
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2285 // Profile checkcast with null_seen and receiver. |
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2286 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, objKlass); |
0 | 2287 } else { |
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2288 // Profile checkcast with null_seen and receiver. |
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2289 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
0 | 2290 } |
2291 UPDATE_PC_AND_CONTINUE(3); | |
2292 | |
2293 CASE(_instanceof): | |
2294 if (STACK_OBJECT(-1) == NULL) { | |
2295 SET_STACK_INT(0, -1); | |
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2296 // Profile instanceof with null_seen and receiver. |
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2297 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/true, NULL); |
0 | 2298 } else { |
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2299 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2300 u2 index = Bytes::get_Java_u2(pc+1); |
2301 // Constant pool may have actual klass or unresolved klass. If it is | |
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2302 // unresolved we must resolve it. |
0 | 2303 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
2304 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2305 } | |
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2306 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2307 Klass* objKlass = STACK_OBJECT(-1)->klass(); |
0 | 2308 // |
2309 // Check for compatibilty. This check must not GC!! | |
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2310 // Seems way more expensive now that we must dispatch. |
0 | 2311 // |
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2312 if ( objKlass == klassOf || objKlass->is_subtype_of(klassOf)) { |
0 | 2313 SET_STACK_INT(1, -1); |
2314 } else { | |
2315 SET_STACK_INT(0, -1); | |
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2316 // Decrement counter at checkcast. |
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2317 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
0 | 2318 } |
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2319 // Profile instanceof with null_seen and receiver. |
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2320 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/false, objKlass); |
0 | 2321 } |
2322 UPDATE_PC_AND_CONTINUE(3); | |
2323 | |
2324 CASE(_ldc_w): | |
2325 CASE(_ldc): | |
2326 { | |
2327 u2 index; | |
2328 bool wide = false; | |
2329 int incr = 2; // frequent case | |
2330 if (opcode == Bytecodes::_ldc) { | |
2331 index = pc[1]; | |
2332 } else { | |
2333 index = Bytes::get_Java_u2(pc+1); | |
2334 incr = 3; | |
2335 wide = true; | |
2336 } | |
2337 | |
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2338 ConstantPool* constants = METHOD->constants(); |
0 | 2339 switch (constants->tag_at(index).value()) { |
2340 case JVM_CONSTANT_Integer: | |
2341 SET_STACK_INT(constants->int_at(index), 0); | |
2342 break; | |
2343 | |
2344 case JVM_CONSTANT_Float: | |
2345 SET_STACK_FLOAT(constants->float_at(index), 0); | |
2346 break; | |
2347 | |
2348 case JVM_CONSTANT_String: | |
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2349 { |
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2350 oop result = constants->resolved_references()->obj_at(index); |
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2351 if (result == NULL) { |
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2352 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
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2353 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
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2354 THREAD->set_vm_result(NULL); |
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2355 } else { |
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2356 VERIFY_OOP(result); |
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2357 SET_STACK_OBJECT(result, 0); |
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2358 } |
0 | 2359 break; |
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2360 } |
0 | 2361 |
2362 case JVM_CONSTANT_Class: | |
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2363 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
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2364 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
0 | 2365 break; |
2366 | |
2367 case JVM_CONSTANT_UnresolvedClass: | |
2368 case JVM_CONSTANT_UnresolvedClassInError: | |
2369 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
2370 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
2371 THREAD->set_vm_result(NULL); | |
2372 break; | |
2373 | |
2374 default: ShouldNotReachHere(); | |
2375 } | |
2376 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
2377 } | |
2378 | |
2379 CASE(_ldc2_w): | |
2380 { | |
2381 u2 index = Bytes::get_Java_u2(pc+1); | |
2382 | |
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2383 ConstantPool* constants = METHOD->constants(); |
0 | 2384 switch (constants->tag_at(index).value()) { |
2385 | |
2386 case JVM_CONSTANT_Long: | |
2387 SET_STACK_LONG(constants->long_at(index), 1); | |
2388 break; | |
2389 | |
2390 case JVM_CONSTANT_Double: | |
2391 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
2392 break; | |
2393 default: ShouldNotReachHere(); | |
2394 } | |
2395 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
2396 } | |
2397 | |
2480 | 2398 CASE(_fast_aldc_w): |
2399 CASE(_fast_aldc): { | |
2400 u2 index; | |
2401 int incr; | |
2402 if (opcode == Bytecodes::_fast_aldc) { | |
2403 index = pc[1]; | |
2404 incr = 2; | |
2405 } else { | |
2406 index = Bytes::get_native_u2(pc+1); | |
2407 incr = 3; | |
2408 } | |
2409 | |
2410 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
2411 // This kind of CP cache entry does not need to match the flags byte, because | |
2412 // there is a 1-1 relation between bytecode type and CP entry type. | |
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2413 ConstantPool* constants = METHOD->constants(); |
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2414 oop result = constants->resolved_references()->obj_at(index); |
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2415 if (result == NULL) { |
2480 | 2416 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
2417 handle_exception); | |
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2418 result = THREAD->vm_result(); |
2480 | 2419 } |
2420 | |
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2421 VERIFY_OOP(result); |
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2422 SET_STACK_OBJECT(result, 0); |
2480 | 2423 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
2424 } | |
2425 | |
2426 CASE(_invokedynamic): { | |
6926 | 2427 |
2480 | 2428 if (!EnableInvokeDynamic) { |
2429 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
2430 // The verifier will stop it. However, if we get past the verifier, | |
2431 // this will stop the thread in a reasonable way, without crashing the JVM. | |
2432 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
2433 handle_exception); | |
2434 ShouldNotReachHere(); | |
2435 } | |
2436 | |
6926 | 2437 u4 index = Bytes::get_native_u4(pc+1); |
2438 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
2480 | 2439 |
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2440 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
2480 | 2441 // This kind of CP cache entry does not need to match the flags byte, because |
2442 // there is a 1-1 relation between bytecode type and CP entry type. | |
6926 | 2443 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
2480 | 2444 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
2445 handle_exception); | |
6926 | 2446 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
2447 } | |
2448 | |
2449 Method* method = cache->f1_as_method(); | |
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2450 if (VerifyOops) method->verify(); |
6926 | 2451 |
2452 if (cache->has_appendix()) { | |
2453 ConstantPool* constants = METHOD->constants(); | |
2454 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2455 MORE_STACK(1); | |
2456 } | |
2457 | |
2458 istate->set_msg(call_method); | |
2459 istate->set_callee(method); | |
2460 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2461 istate->set_bcp_advance(5); | |
2462 | |
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2463 // Invokedynamic has got a call counter, just like an invokestatic -> increment! |
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|
2464 BI_PROFILE_UPDATE_CALL(); |
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2465 |
6926 | 2466 UPDATE_PC_AND_RETURN(0); // I'll be back... |
2467 } | |
2468 | |
2469 CASE(_invokehandle): { | |
2470 | |
2471 if (!EnableInvokeDynamic) { | |
2472 ShouldNotReachHere(); | |
2480 | 2473 } |
2474 | |
6926 | 2475 u2 index = Bytes::get_native_u2(pc+1); |
2476 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2477 | |
2478 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
2479 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
2480 handle_exception); | |
2481 cache = cp->entry_at(index); | |
2482 } | |
2483 | |
2484 Method* method = cache->f1_as_method(); | |
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2485 if (VerifyOops) method->verify(); |
6926 | 2486 |
2487 if (cache->has_appendix()) { | |
2488 ConstantPool* constants = METHOD->constants(); | |
2489 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2490 MORE_STACK(1); | |
2491 } | |
2492 | |
2493 istate->set_msg(call_method); | |
2494 istate->set_callee(method); | |
2495 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2496 istate->set_bcp_advance(3); | |
2480 | 2497 |
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2498 // Invokehandle has got a call counter, just like a final call -> increment! |
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|
2499 BI_PROFILE_UPDATE_FINALCALL(); |
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2500 |
2480 | 2501 UPDATE_PC_AND_RETURN(0); // I'll be back... |
2502 } | |
2503 | |
0 | 2504 CASE(_invokeinterface): { |
2505 u2 index = Bytes::get_native_u2(pc+1); | |
2506 | |
2507 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2508 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2509 | |
2510 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2511 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2512 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2513 handle_exception); | |
2514 cache = cp->entry_at(index); | |
2515 } | |
2516 | |
2517 istate->set_msg(call_method); | |
2518 | |
2519 // Special case of invokeinterface called for virtual method of | |
2520 // java.lang.Object. See cpCacheOop.cpp for details. | |
2521 // This code isn't produced by javac, but could be produced by | |
2522 // another compliant java compiler. | |
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2523 if (cache->is_forced_virtual()) { |
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2524 Method* callee; |
0 | 2525 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
2526 if (cache->is_vfinal()) { | |
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2527 callee = cache->f2_as_vfinal_method(); |
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2528 // Profile 'special case of invokeinterface' final call. |
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2529 BI_PROFILE_UPDATE_FINALCALL(); |
0 | 2530 } else { |
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2531 // Get receiver. |
0 | 2532 int parms = cache->parameter_size(); |
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2533 // Same comments as invokevirtual apply here. |
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2534 oop rcvr = STACK_OBJECT(-parms); |
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2535 VERIFY_OOP(rcvr); |
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2536 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
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2537 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
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2538 // Profile 'special case of invokeinterface' virtual call. |
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|
2539 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
0 | 2540 } |
2541 istate->set_callee(callee); | |
2542 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2543 #ifdef VM_JVMTI | |
2544 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2545 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2546 } | |
2547 #endif /* VM_JVMTI */ | |
2548 istate->set_bcp_advance(5); | |
2549 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2550 } | |
2551 | |
2552 // this could definitely be cleaned up QQQ | |
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2553 Method* callee; |
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2554 Klass* iclass = cache->f1_as_klass(); |
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2555 // InstanceKlass* interface = (InstanceKlass*) iclass; |
0 | 2556 // get receiver |
2557 int parms = cache->parameter_size(); | |
2558 oop rcvr = STACK_OBJECT(-parms); | |
2559 CHECK_NULL(rcvr); | |
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2560 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
0 | 2561 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
2562 int i; | |
2563 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
2564 if (ki->interface_klass() == iclass) break; | |
2565 } | |
2566 // If the interface isn't found, this class doesn't implement this | |
2567 // interface. The link resolver checks this but only for the first | |
2568 // time this interface is called. | |
2569 if (i == int2->itable_length()) { | |
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2570 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap); |
0 | 2571 } |
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2572 int mindex = cache->f2_as_index(); |
0 | 2573 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
2574 callee = im[mindex].method(); | |
2575 if (callee == NULL) { | |
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2576 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), "", note_no_trap); |
0 | 2577 } |
2578 | |
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|
2579 // Profile virtual call. |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2580 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
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diff
changeset
|
2581 |
0 | 2582 istate->set_callee(callee); |
2583 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2584 #ifdef VM_JVMTI | |
2585 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2586 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2587 } | |
2588 #endif /* VM_JVMTI */ | |
2589 istate->set_bcp_advance(5); | |
2590 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2591 } | |
2592 | |
2593 CASE(_invokevirtual): | |
2594 CASE(_invokespecial): | |
2595 CASE(_invokestatic): { | |
2596 u2 index = Bytes::get_native_u2(pc+1); | |
2597 | |
2598 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2599 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2600 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2601 | |
2602 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2603 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2604 handle_exception); | |
2605 cache = cp->entry_at(index); | |
2606 } | |
2607 | |
2608 istate->set_msg(call_method); | |
2609 { | |
6725
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6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2610 Method* callee; |
0 | 2611 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
2612 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
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|
2613 if (cache->is_vfinal()) { |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2614 callee = cache->f2_as_vfinal_method(); |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2615 // Profile final call. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2616 BI_PROFILE_UPDATE_FINALCALL(); |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2617 } else { |
0 | 2618 // get receiver |
2619 int parms = cache->parameter_size(); | |
2620 // this works but needs a resourcemark and seems to create a vtable on every call: | |
6725
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6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2621 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
0 | 2622 // |
2623 // this fails with an assert | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2624 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
0 | 2625 // but this works |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2626 oop rcvr = STACK_OBJECT(-parms); |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2627 VERIFY_OOP(rcvr); |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2628 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
0 | 2629 /* |
2630 Executing this code in java.lang.String: | |
2631 public String(char value[]) { | |
2632 this.count = value.length; | |
2633 this.value = (char[])value.clone(); | |
2634 } | |
2635 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2636 a find on rcvr->klass() reports: |
0 | 2637 {type array char}{type array class} |
2638 - klass: {other class} | |
2639 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2640 but using InstanceKlass::cast(STACK_OBJECT(-parms)->klass()) causes in assertion failure |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2641 because rcvr->klass()->oop_is_instance() == 0 |
0 | 2642 However it seems to have a vtable in the right location. Huh? |
2643 | |
2644 */ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
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|
2645 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2646 // Profile virtual call. |
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diff
changeset
|
2647 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
0 | 2648 } |
2649 } else { | |
2650 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
2651 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
2652 } | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
2653 callee = cache->f1_as_method(); |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2654 |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2655 // Profile call. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2656 BI_PROFILE_UPDATE_CALL(); |
0 | 2657 } |
2658 | |
2659 istate->set_callee(callee); | |
2660 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2661 #ifdef VM_JVMTI | |
2662 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2663 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2664 } | |
2665 #endif /* VM_JVMTI */ | |
2666 istate->set_bcp_advance(3); | |
2667 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2668 } | |
2669 } | |
2670 | |
2671 /* Allocate memory for a new java object. */ | |
2672 | |
2673 CASE(_newarray): { | |
2674 BasicType atype = (BasicType) *(pc+1); | |
2675 jint size = STACK_INT(-1); | |
2676 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
2677 handle_exception); | |
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2678 // Must prevent reordering of stores for object initialization |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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parents:
14433
diff
changeset
|
2679 // with stores that publish the new object. |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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14433
diff
changeset
|
2680 OrderAccess::storestore(); |
0 | 2681 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
2682 THREAD->set_vm_result(NULL); | |
2683 | |
2684 UPDATE_PC_AND_CONTINUE(2); | |
2685 } | |
2686 | |
2687 /* Throw an exception. */ | |
2688 | |
2689 CASE(_athrow): { | |
2690 oop except_oop = STACK_OBJECT(-1); | |
2691 CHECK_NULL(except_oop); | |
2692 // set pending_exception so we use common code | |
2693 THREAD->set_pending_exception(except_oop, NULL, 0); | |
2694 goto handle_exception; | |
2695 } | |
2696 | |
2697 /* goto and jsr. They are exactly the same except jsr pushes | |
2698 * the address of the next instruction first. | |
2699 */ | |
2700 | |
2701 CASE(_jsr): { | |
2702 /* push bytecode index on stack */ | |
2703 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
2704 MORE_STACK(1); | |
2705 /* FALL THROUGH */ | |
2706 } | |
2707 | |
2708 CASE(_goto): | |
2709 { | |
2710 int16_t offset = (int16_t)Bytes::get_Java_u2(pc + 1); | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2711 // Profile jump. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2712 BI_PROFILE_UPDATE_JUMP(); |
0 | 2713 address branch_pc = pc; |
2714 UPDATE_PC(offset); | |
2715 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2716 CONTINUE; | |
2717 } | |
2718 | |
2719 CASE(_jsr_w): { | |
2720 /* push return address on the stack */ | |
2721 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
2722 MORE_STACK(1); | |
2723 /* FALL THROUGH */ | |
2724 } | |
2725 | |
2726 CASE(_goto_w): | |
2727 { | |
2728 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2729 // Profile jump. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2730 BI_PROFILE_UPDATE_JUMP(); |
0 | 2731 address branch_pc = pc; |
2732 UPDATE_PC(offset); | |
2733 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2734 CONTINUE; | |
2735 } | |
2736 | |
2737 /* return from a jsr or jsr_w */ | |
2738 | |
2739 CASE(_ret): { | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2740 // Profile ret. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2741 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(pc[1])))); |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
14417
diff
changeset
|
2742 // Now, update the pc. |
0 | 2743 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); |
2744 UPDATE_PC_AND_CONTINUE(0); | |
2745 } | |
2746 | |
2747 /* debugger breakpoint */ | |
2748 | |
2749 CASE(_breakpoint): { | |
2750 Bytecodes::Code original_bytecode; | |
2751 DECACHE_STATE(); | |
2752 SET_LAST_JAVA_FRAME(); | |
2753 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
2754 METHOD, pc); | |
2755 RESET_LAST_JAVA_FRAME(); | |
2756 CACHE_STATE(); | |
2757 if (THREAD->has_pending_exception()) goto handle_exception; | |
2758 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
2759 handle_exception); | |
2760 | |
2761 opcode = (jubyte)original_bytecode; | |
2762 goto opcode_switch; | |
2763 } | |
2764 | |
2765 DEFAULT: | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2766 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2767 Bytecodes::name((Bytecodes::Code)opcode))); |
0 | 2768 goto finish; |
2769 | |
2770 } /* switch(opc) */ | |
2771 | |
2772 | |
2773 #ifdef USELABELS | |
2774 check_for_exception: | |
2775 #endif | |
2776 { | |
2777 if (!THREAD->has_pending_exception()) { | |
2778 CONTINUE; | |
2779 } | |
2780 /* We will be gcsafe soon, so flush our state. */ | |
2781 DECACHE_PC(); | |
2782 goto handle_exception; | |
2783 } | |
2784 do_continue: ; | |
2785 | |
2786 } /* while (1) interpreter loop */ | |
2787 | |
2788 | |
2789 // An exception exists in the thread state see whether this activation can handle it | |
2790 handle_exception: { | |
2791 | |
2792 HandleMarkCleaner __hmc(THREAD); | |
2793 Handle except_oop(THREAD, THREAD->pending_exception()); | |
2794 // Prevent any subsequent HandleMarkCleaner in the VM | |
2795 // from freeing the except_oop handle. | |
2796 HandleMark __hm(THREAD); | |
2797 | |
2798 THREAD->clear_pending_exception(); | |
2799 assert(except_oop(), "No exception to process"); | |
2800 intptr_t continuation_bci; | |
2801 // expression stack is emptied | |
1509 | 2802 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
0 | 2803 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
2804 handle_exception); | |
2805 | |
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6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2806 except_oop = THREAD->vm_result(); |
0 | 2807 THREAD->set_vm_result(NULL); |
2808 if (continuation_bci >= 0) { | |
2809 // Place exception on top of stack | |
2810 SET_STACK_OBJECT(except_oop(), 0); | |
2811 MORE_STACK(1); | |
2812 pc = METHOD->code_base() + continuation_bci; | |
2813 if (TraceExceptions) { | |
2814 ttyLocker ttyl; | |
2815 ResourceMark rm; | |
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
simonis
parents:
14420
diff
changeset
|
2816 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
0 | 2817 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
2818 tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2819 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2820 continuation_bci, THREAD); |
2821 } | |
2822 // for AbortVMOnException flag | |
2823 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2824 |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2825 // Update profiling data. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2826 BI_PROFILE_ALIGN_TO_CURRENT_BCI(); |
0 | 2827 goto run; |
2828 } | |
2829 if (TraceExceptions) { | |
2830 ttyLocker ttyl; | |
2831 ResourceMark rm; | |
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
simonis
parents:
14420
diff
changeset
|
2832 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
0 | 2833 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
2834 tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2835 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2836 THREAD); |
2837 } | |
2838 // for AbortVMOnException flag | |
2839 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
2840 // No handler in this activation, unwind and try again | |
2841 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
2842 goto handle_return; | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2843 } // handle_exception: |
0 | 2844 |
2845 // Return from an interpreter invocation with the result of the interpretation | |
2846 // on the top of the Java Stack (or a pending exception) | |
2847 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2848 handle_Pop_Frame: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2849 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2850 // We don't really do anything special here except we must be aware |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2851 // that we can get here without ever locking the method (if sync). |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2852 // Also we skip the notification of the exit. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2853 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2854 istate->set_msg(popping_frame); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2855 // Clear pending so while the pop is in process |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2856 // we don't start another one if a call_vm is done. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2857 THREAD->clr_pop_frame_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2858 // Let interpreter (only) see the we're in the process of popping a frame |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2859 THREAD->set_pop_frame_in_process(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2860 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2861 goto handle_return; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2862 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2863 } // handle_Pop_Frame |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2864 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2865 // ForceEarlyReturn ends a method, and returns to the caller with a return value |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2866 // given by the invoker of the early return. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2867 handle_Early_Return: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2868 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2869 istate->set_msg(early_return); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2870 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2871 // Clear expression stack. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2872 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2873 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2874 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2875 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2876 // Push the value to be returned. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2877 switch (istate->method()->result_type()) { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2878 case T_BOOLEAN: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2879 case T_SHORT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2880 case T_BYTE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2881 case T_CHAR: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2882 case T_INT: |
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2883 SET_STACK_INT(ts->earlyret_value().i, 0); |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2884 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2885 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2886 case T_LONG: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2887 SET_STACK_LONG(ts->earlyret_value().j, 1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2888 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2889 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2890 case T_FLOAT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2891 SET_STACK_FLOAT(ts->earlyret_value().f, 0); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2892 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2893 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2894 case T_DOUBLE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2895 SET_STACK_DOUBLE(ts->earlyret_value().d, 1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2896 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2897 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2898 case T_ARRAY: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2899 case T_OBJECT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2900 SET_STACK_OBJECT(ts->earlyret_oop(), 0); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2901 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2902 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2903 } |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2904 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2905 ts->clr_earlyret_value(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2906 ts->set_earlyret_oop(NULL); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2907 ts->clr_earlyret_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2908 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2909 // Fall through to handle_return. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2910 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2911 } // handle_Early_Return |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2912 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2913 handle_return: { |
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2914 // A storestore barrier is required to order initialization of |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2915 // final fields with publishing the reference to the object that |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2916 // holds the field. Without the barrier the value of final fields |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2917 // can be observed to change. |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2918 OrderAccess::storestore(); |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2919 |
0 | 2920 DECACHE_STATE(); |
2921 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2922 bool suppress_error = istate->msg() == popping_frame || istate->msg() == early_return; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2923 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
0 | 2924 Handle original_exception(THREAD, THREAD->pending_exception()); |
2925 Handle illegal_state_oop(THREAD, NULL); | |
2926 | |
2927 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
2928 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
2929 // isn't really allocated yet and so doesn't become live until later and | |
2930 // in unpredicatable places. Instead we must protect the places where we enter the | |
2931 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
2932 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
2933 // unfortunately isn't possible. | |
2934 | |
2935 THREAD->clear_pending_exception(); | |
2936 | |
2937 // | |
2938 // As far as we are concerned we have returned. If we have a pending exception | |
2939 // that will be returned as this invocation's result. However if we get any | |
2940 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
2941 // will be our final result (i.e. monitor exception trumps a pending exception). | |
2942 // | |
2943 | |
2944 // If we never locked the method (or really passed the point where we would have), | |
2945 // there is no need to unlock it (or look for other monitors), since that | |
2946 // could not have happened. | |
2947 | |
2948 if (THREAD->do_not_unlock()) { | |
2949 | |
2950 // Never locked, reset the flag now because obviously any caller must | |
2951 // have passed their point of locking for us to have gotten here. | |
2952 | |
2953 THREAD->clr_do_not_unlock(); | |
2954 } else { | |
2955 // At this point we consider that we have returned. We now check that the | |
2956 // locks were properly block structured. If we find that they were not | |
2957 // used properly we will return with an illegal monitor exception. | |
2958 // The exception is checked by the caller not the callee since this | |
2959 // checking is considered to be part of the invocation and therefore | |
2960 // in the callers scope (JVM spec 8.13). | |
2961 // | |
2962 // Another weird thing to watch for is if the method was locked | |
2963 // recursively and then not exited properly. This means we must | |
2964 // examine all the entries in reverse time(and stack) order and | |
2965 // unlock as we find them. If we find the method monitor before | |
2966 // we are at the initial entry then we should throw an exception. | |
2967 // It is not clear the template based interpreter does this | |
2968 // correctly | |
2969 | |
2970 BasicObjectLock* base = istate->monitor_base(); | |
2971 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
2972 bool method_unlock_needed = METHOD->is_synchronized(); | |
2973 // We know the initial monitor was used for the method don't check that | |
2974 // slot in the loop | |
2975 if (method_unlock_needed) base--; | |
2976 | |
2977 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
2978 while (end < base) { | |
2979 oop lockee = end->obj(); | |
2980 if (lockee != NULL) { | |
2981 BasicLock* lock = end->lock(); | |
2982 markOop header = lock->displaced_header(); | |
2983 end->set_obj(NULL); | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2984 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2985 if (!lockee->mark()->has_bias_pattern()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2986 // If it isn't recursive we either must swap old header or call the runtime |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2987 if (header != NULL) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2988 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2989 // restore object for the slow case |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2990 end->set_obj(lockee); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2991 { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2992 // Prevent any HandleMarkCleaner from freeing our live handles |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2993 HandleMark __hm(THREAD); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2994 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2995 } |
0 | 2996 } |
2997 } | |
2998 } | |
2999 // One error is plenty | |
3000 if (illegal_state_oop() == NULL && !suppress_error) { | |
3001 { | |
3002 // Prevent any HandleMarkCleaner from freeing our live handles | |
3003 HandleMark __hm(THREAD); | |
3004 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
3005 } | |
3006 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
3007 illegal_state_oop = THREAD->pending_exception(); | |
3008 THREAD->clear_pending_exception(); | |
3009 } | |
3010 } | |
3011 end++; | |
3012 } | |
3013 // Unlock the method if needed | |
3014 if (method_unlock_needed) { | |
3015 if (base->obj() == NULL) { | |
3016 // The method is already unlocked this is not good. | |
3017 if (illegal_state_oop() == NULL && !suppress_error) { | |
3018 { | |
3019 // Prevent any HandleMarkCleaner from freeing our live handles | |
3020 HandleMark __hm(THREAD); | |
3021 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
3022 } | |
3023 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
3024 illegal_state_oop = THREAD->pending_exception(); | |
3025 THREAD->clear_pending_exception(); | |
3026 } | |
3027 } else { | |
3028 // | |
3029 // The initial monitor is always used for the method | |
3030 // However if that slot is no longer the oop for the method it was unlocked | |
3031 // and reused by something that wasn't unlocked! | |
3032 // | |
3033 // deopt can come in with rcvr dead because c2 knows | |
3034 // its value is preserved in the monitor. So we can't use locals[0] at all | |
3035 // and must use first monitor slot. | |
3036 // | |
3037 oop rcvr = base->obj(); | |
3038 if (rcvr == NULL) { | |
3039 if (!suppress_error) { | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
3040 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), "", note_nullCheck_trap); |
0 | 3041 illegal_state_oop = THREAD->pending_exception(); |
3042 THREAD->clear_pending_exception(); | |
3043 } | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3044 } else if (UseHeavyMonitors) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3045 { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3046 // Prevent any HandleMarkCleaner from freeing our live handles. |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3047 HandleMark __hm(THREAD); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3048 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3049 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3050 if (THREAD->has_pending_exception()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3051 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3052 THREAD->clear_pending_exception(); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3053 } |
0 | 3054 } else { |
3055 BasicLock* lock = base->lock(); | |
3056 markOop header = lock->displaced_header(); | |
3057 base->set_obj(NULL); | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3058 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3059 if (!rcvr->mark()->has_bias_pattern()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3060 base->set_obj(NULL); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3061 // If it isn't recursive we either must swap old header or call the runtime |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3062 if (header != NULL) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3063 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3064 // restore object for the slow case |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3065 base->set_obj(rcvr); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3066 { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3067 // Prevent any HandleMarkCleaner from freeing our live handles |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
changeset
|
3068 HandleMark __hm(THREAD); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3069 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
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diff
changeset
|
3070 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3071 if (THREAD->has_pending_exception()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3072 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
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diff
changeset
|
3073 THREAD->clear_pending_exception(); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3074 } |
0 | 3075 } |
3076 } | |
3077 } | |
3078 } | |
3079 } | |
3080 } | |
3081 } | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3082 // Clear the do_not_unlock flag now. |
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3083 THREAD->clr_do_not_unlock(); |
0 | 3084 |
3085 // | |
3086 // Notify jvmti/jvmdi | |
3087 // | |
3088 // NOTE: we do not notify a method_exit if we have a pending exception, | |
3089 // including an exception we generate for unlocking checks. In the former | |
3090 // case, JVMDI has already been notified by our call for the exception handler | |
3091 // and in both cases as far as JVMDI is concerned we have already returned. | |
3092 // If we notify it again JVMDI will be all confused about how many frames | |
3093 // are still on the stack (4340444). | |
3094 // | |
3095 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
3096 // method_exit events whenever we leave an activation unless it was done | |
3097 // for popframe. This is nothing like jvmdi. However we are passing the | |
3098 // tests at the moment (apparently because they are jvmdi based) so rather | |
3099 // than change this code and possibly fail tests we will leave it alone | |
3100 // (with this note) in anticipation of changing the vm and the tests | |
3101 // simultaneously. | |
3102 | |
3103 | |
3104 // | |
3105 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
3106 | |
3107 | |
3108 | |
3109 #ifdef VM_JVMTI | |
3110 if (_jvmti_interp_events) { | |
3111 // Whenever JVMTI puts a thread in interp_only_mode, method | |
3112 // entry/exit events are sent for that thread to track stack depth. | |
3113 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
3114 { | |
3115 // Prevent any HandleMarkCleaner from freeing our live handles | |
3116 HandleMark __hm(THREAD); | |
3117 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
3118 } | |
3119 } | |
3120 } | |
3121 #endif /* VM_JVMTI */ | |
3122 | |
3123 // | |
3124 // See if we are returning any exception | |
3125 // A pending exception that was pending prior to a possible popping frame | |
3126 // overrides the popping frame. | |
3127 // | |
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3128 assert(!suppress_error || (suppress_error && illegal_state_oop() == NULL), "Error was not suppressed"); |
0 | 3129 if (illegal_state_oop() != NULL || original_exception() != NULL) { |
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3130 // Inform the frame manager we have no result. |
0 | 3131 istate->set_msg(throwing_exception); |
3132 if (illegal_state_oop() != NULL) | |
3133 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
3134 else | |
3135 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
3136 UPDATE_PC_AND_RETURN(0); | |
3137 } | |
3138 | |
3139 if (istate->msg() == popping_frame) { | |
3140 // Make it simpler on the assembly code and set the message for the frame pop. | |
3141 // returns | |
3142 if (istate->prev() == NULL) { | |
3143 // We must be returning to a deoptimized frame (because popframe only happens between | |
3144 // two interpreted frames). We need to save the current arguments in C heap so that | |
3145 // the deoptimized frame when it restarts can copy the arguments to its expression | |
3146 // stack and re-execute the call. We also have to notify deoptimization that this | |
605 | 3147 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
0 | 3148 // java expression stack. Yuck. |
3149 // | |
3150 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
3151 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
3152 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
3153 } | |
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3154 } else { |
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3155 istate->set_msg(return_from_method); |
0 | 3156 } |
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3157 |
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3158 // Normal return |
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3159 // Advance the pc and return to frame manager |
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3160 UPDATE_PC_AND_RETURN(1); |
0 | 3161 } /* handle_return: */ |
3162 | |
3163 // This is really a fatal error return | |
3164 | |
3165 finish: | |
3166 DECACHE_TOS(); | |
3167 DECACHE_PC(); | |
3168 | |
3169 return; | |
3170 } | |
3171 | |
3172 /* | |
3173 * All the code following this point is only produced once and is not present | |
3174 * in the JVMTI version of the interpreter | |
3175 */ | |
3176 | |
3177 #ifndef VM_JVMTI | |
3178 | |
3179 // This constructor should only be used to contruct the object to signal | |
3180 // interpreter initialization. All other instances should be created by | |
3181 // the frame manager. | |
3182 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
3183 if (msg != initialize) ShouldNotReachHere(); | |
3184 _msg = msg; | |
3185 _self_link = this; | |
3186 _prev_link = NULL; | |
3187 } | |
3188 | |
3189 // Inline static functions for Java Stack and Local manipulation | |
3190 | |
3191 // The implementations are platform dependent. We have to worry about alignment | |
3192 // issues on some machines which can change on the same platform depending on | |
3193 // whether it is an LP64 machine also. | |
3194 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
3195 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
3196 } | |
3197 | |
3198 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
3199 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
3200 } | |
3201 | |
3202 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
3203 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
3204 } | |
3205 | |
3206 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
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3207 return cast_to_oop(tos [Interpreter::expr_index_at(-offset)]); |
0 | 3208 } |
3209 | |
3210 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
3211 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
3212 } | |
3213 | |
3214 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
3215 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
3216 } | |
3217 | |
3218 // only used for value types | |
3219 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
3220 int offset) { | |
3221 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3222 } | |
3223 | |
3224 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
3225 int offset) { | |
3226 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3227 } | |
3228 | |
3229 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
3230 int offset) { | |
3231 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3232 } | |
3233 | |
3234 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
3235 int offset) { | |
3236 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3237 } | |
3238 | |
3239 // needs to be platform dep for the 32 bit platforms. | |
3240 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
3241 int offset) { | |
3242 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
3243 } | |
3244 | |
3245 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
3246 address addr, int offset) { | |
3247 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
3248 ((VMJavaVal64*)addr)->d); | |
3249 } | |
3250 | |
3251 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
3252 int offset) { | |
3253 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3254 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
3255 } | |
3256 | |
3257 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
3258 address addr, int offset) { | |
3259 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3260 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
3261 ((VMJavaVal64*)addr)->l; | |
3262 } | |
3263 | |
3264 // Locals | |
3265 | |
3266 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
3267 return (address)locals[Interpreter::local_index_at(-offset)]; | |
3268 } | |
3269 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
3270 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
3271 } | |
3272 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
3273 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
3274 } | |
3275 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
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3276 return cast_to_oop(locals[Interpreter::local_index_at(-offset)]); |
0 | 3277 } |
3278 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
3279 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
3280 } | |
3281 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
3282 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
3283 } | |
3284 | |
3285 // Returns the address of locals value. | |
3286 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
3287 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3288 } | |
3289 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
3290 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3291 } | |
3292 | |
3293 // Used for local value or returnAddress | |
3294 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
3295 address value, int offset) { | |
3296 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3297 } | |
3298 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
3299 jint value, int offset) { | |
3300 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3301 } | |
3302 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
3303 jfloat value, int offset) { | |
3304 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3305 } | |
3306 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
3307 oop value, int offset) { | |
3308 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3309 } | |
3310 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
3311 jdouble value, int offset) { | |
3312 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
3313 } | |
3314 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
3315 jlong value, int offset) { | |
3316 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
3317 } | |
3318 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
3319 address addr, int offset) { | |
3320 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
3321 } | |
3322 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
3323 address addr, int offset) { | |
3324 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
3325 } | |
3326 | |
3327 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
3328 intptr_t* locals, int locals_offset) { | |
3329 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
3330 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
3331 } | |
3332 | |
3333 | |
3334 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
3335 int to_offset) { | |
3336 tos[Interpreter::expr_index_at(-to_offset)] = | |
3337 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
3338 } | |
3339 | |
3340 void BytecodeInterpreter::dup(intptr_t *tos) { | |
3341 copy_stack_slot(tos, -1, 0); | |
3342 } | |
3343 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
3344 copy_stack_slot(tos, -2, 0); | |
3345 copy_stack_slot(tos, -1, 1); | |
3346 } | |
3347 | |
3348 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
3349 /* insert top word two down */ | |
3350 copy_stack_slot(tos, -1, 0); | |
3351 copy_stack_slot(tos, -2, -1); | |
3352 copy_stack_slot(tos, 0, -2); | |
3353 } | |
3354 | |
3355 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
3356 /* insert top word three down */ | |
3357 copy_stack_slot(tos, -1, 0); | |
3358 copy_stack_slot(tos, -2, -1); | |
3359 copy_stack_slot(tos, -3, -2); | |
3360 copy_stack_slot(tos, 0, -3); | |
3361 } | |
3362 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
3363 /* insert top 2 slots three down */ | |
3364 copy_stack_slot(tos, -1, 1); | |
3365 copy_stack_slot(tos, -2, 0); | |
3366 copy_stack_slot(tos, -3, -1); | |
3367 copy_stack_slot(tos, 1, -2); | |
3368 copy_stack_slot(tos, 0, -3); | |
3369 } | |
3370 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
3371 /* insert top 2 slots four down */ | |
3372 copy_stack_slot(tos, -1, 1); | |
3373 copy_stack_slot(tos, -2, 0); | |
3374 copy_stack_slot(tos, -3, -1); | |
3375 copy_stack_slot(tos, -4, -2); | |
3376 copy_stack_slot(tos, 1, -3); | |
3377 copy_stack_slot(tos, 0, -4); | |
3378 } | |
3379 | |
3380 | |
3381 void BytecodeInterpreter::swap(intptr_t *tos) { | |
3382 // swap top two elements | |
3383 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
3384 // Copy -2 entry to -1 | |
3385 copy_stack_slot(tos, -2, -1); | |
3386 // Store saved -1 entry into -2 | |
3387 tos[Interpreter::expr_index_at(2)] = val; | |
3388 } | |
3389 // -------------------------------------------------------------------------------- | |
3390 // Non-product code | |
3391 #ifndef PRODUCT | |
3392 | |
3393 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
3394 switch (msg) { | |
3395 case BytecodeInterpreter::no_request: return("no_request"); | |
3396 case BytecodeInterpreter::initialize: return("initialize"); | |
3397 // status message to C++ interpreter | |
3398 case BytecodeInterpreter::method_entry: return("method_entry"); | |
3399 case BytecodeInterpreter::method_resume: return("method_resume"); | |
3400 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
3401 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
3402 // requests to frame manager from C++ interpreter | |
3403 case BytecodeInterpreter::call_method: return("call_method"); | |
3404 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
3405 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
3406 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
3407 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
3408 case BytecodeInterpreter::do_osr: return("do_osr"); | |
3409 // deopt | |
3410 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
3411 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
3412 default: return("BAD MSG"); | |
3413 } | |
3414 } | |
3415 void | |
3416 BytecodeInterpreter::print() { | |
3417 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
3418 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
3419 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
3420 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
3421 { | |
3422 ResourceMark rm; | |
3423 char *method_name = _method->name_and_sig_as_C_string(); | |
3424 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
3425 } | |
3426 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
3427 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
3428 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
3429 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
3430 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
3431 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
3432 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
3433 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
3434 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
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3435 tty->print_cr("native_mirror: " INTPTR_FORMAT, (void*) this->_oop_temp); |
0 | 3436 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); |
3437 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
3438 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
3439 #ifdef SPARC | |
3440 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
3441 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
3442 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
3443 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
3444 #endif | |
7994 | 3445 #if !defined(ZERO) |
0 | 3446 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
7994 | 3447 #endif // !ZERO |
0 | 3448 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
3449 } | |
3450 | |
3451 extern "C" { | |
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3452 void PI(uintptr_t arg) { |
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3453 ((BytecodeInterpreter*)arg)->print(); |
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3454 } |
0 | 3455 } |
3456 #endif // PRODUCT | |
3457 | |
3458 #endif // JVMTI | |
3459 #endif // CC_INTERP |