Mercurial > hg > graal-compiler
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 14752:311bf6c7488b
revert some changes to match upstream files
author | twisti |
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date | Tue, 25 Mar 2014 16:25:02 -0700 |
parents | 92aa6797d639 |
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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" | |
44 #include "runtime/sharedRuntime.hpp" | |
45 #include "runtime/threadCritical.hpp" | |
46 #include "utilities/exceptions.hpp" | |
47 #ifdef TARGET_OS_ARCH_linux_x86 | |
48 # include "orderAccess_linux_x86.inline.hpp" | |
49 #endif | |
50 #ifdef TARGET_OS_ARCH_linux_sparc | |
51 # include "orderAccess_linux_sparc.inline.hpp" | |
52 #endif | |
53 #ifdef TARGET_OS_ARCH_linux_zero | |
54 # include "orderAccess_linux_zero.inline.hpp" | |
55 #endif | |
56 #ifdef TARGET_OS_ARCH_solaris_x86 | |
57 # include "orderAccess_solaris_x86.inline.hpp" | |
58 #endif | |
59 #ifdef TARGET_OS_ARCH_solaris_sparc | |
60 # include "orderAccess_solaris_sparc.inline.hpp" | |
61 #endif | |
62 #ifdef TARGET_OS_ARCH_windows_x86 | |
63 # include "orderAccess_windows_x86.inline.hpp" | |
64 #endif | |
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65 #ifdef TARGET_OS_ARCH_linux_arm |
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66 # include "orderAccess_linux_arm.inline.hpp" |
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67 #endif |
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68 #ifdef TARGET_OS_ARCH_linux_ppc |
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69 # include "orderAccess_linux_ppc.inline.hpp" |
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70 #endif |
14411 | 71 #ifdef TARGET_OS_ARCH_aix_ppc |
72 # include "orderAccess_aix_ppc.inline.hpp" | |
73 #endif | |
3960 | 74 #ifdef TARGET_OS_ARCH_bsd_x86 |
75 # include "orderAccess_bsd_x86.inline.hpp" | |
76 #endif | |
77 #ifdef TARGET_OS_ARCH_bsd_zero | |
78 # include "orderAccess_bsd_zero.inline.hpp" | |
79 #endif | |
1972 | 80 |
0 | 81 |
82 // no precompiled headers | |
83 #ifdef CC_INTERP | |
84 | |
85 /* | |
86 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
87 * rather -then a switch statement. This improves performance because it | |
88 * gives us the oportunity to have the instructions that calculate the | |
89 * next opcode to jump to be intermixed with the rest of the instructions | |
90 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
91 */ | |
92 #undef USELABELS | |
93 #ifdef __GNUC__ | |
94 /* | |
95 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
96 don't use the computed goto approach. | |
97 */ | |
98 #ifndef ASSERT | |
99 #define USELABELS | |
100 #endif | |
101 #endif | |
102 | |
103 #undef CASE | |
104 #ifdef USELABELS | |
105 #define CASE(opcode) opc ## opcode | |
106 #define DEFAULT opc_default | |
107 #else | |
108 #define CASE(opcode) case Bytecodes:: opcode | |
109 #define DEFAULT default | |
110 #endif | |
111 | |
112 /* | |
113 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
114 * opcode before going back to the top of the while loop, rather then having | |
115 * the top of the while loop handle it. This provides a better opportunity | |
116 * for instruction scheduling. Some compilers just do this prefetch | |
117 * automatically. Some actually end up with worse performance if you | |
118 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
119 */ | |
120 #undef PREFETCH_OPCCODE | |
121 #define PREFETCH_OPCCODE | |
122 | |
123 /* | |
124 Interpreter safepoint: it is expected that the interpreter will have no live | |
125 handles of its own creation live at an interpreter safepoint. Therefore we | |
126 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
127 since the JavaCalls::call_helper invocation that initiated the chain. | |
128 There really shouldn't be any handles remaining to trash but this is cheap | |
129 in relation to a safepoint. | |
130 */ | |
131 #define SAFEPOINT \ | |
132 if ( SafepointSynchronize::is_synchronizing()) { \ | |
133 { \ | |
134 /* zap freed handles rather than GC'ing them */ \ | |
135 HandleMarkCleaner __hmc(THREAD); \ | |
136 } \ | |
137 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
138 } | |
139 | |
140 /* | |
141 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
142 * the interpreter loop. Should really be a CALL_VM but there | |
143 * is no entry point to do the transition to vm so we just | |
144 * do it by hand here. | |
145 */ | |
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146 #define VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
0 | 147 DECACHE_STATE(); \ |
148 SET_LAST_JAVA_FRAME(); \ | |
149 { \ | |
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150 InterpreterRuntime::note_a_trap(THREAD, istate->method(), BCI()); \ |
0 | 151 ThreadInVMfromJava trans(THREAD); \ |
152 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
153 } \ | |
154 RESET_LAST_JAVA_FRAME(); \ | |
155 CACHE_STATE(); | |
156 | |
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157 // Normal throw of a java error. |
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158 #define VM_JAVA_ERROR(name, msg, note_a_trap) \ |
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159 VM_JAVA_ERROR_NO_JUMP(name, msg, note_a_trap) \ |
0 | 160 goto handle_exception; |
161 | |
162 #ifdef PRODUCT | |
163 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
164 #else | |
165 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
166 { \ | |
167 BytecodeCounter::_counter_value++; \ | |
168 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
169 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
170 if (TraceBytecodes) { \ | |
171 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
172 topOfStack[Interpreter::expr_index_at(1)], \ | |
173 topOfStack[Interpreter::expr_index_at(2)]), \ | |
174 handle_exception); \ | |
175 } \ | |
176 } | |
177 #endif | |
178 | |
179 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
180 #ifdef VM_JVMTI | |
181 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
182 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
183 breakpoint opcode to get inserted at the current PC to allow the | |
184 debugger to coalesce single-step events. | |
185 | |
186 As a result if we call at_single_stepping_point() we refetch opcode | |
187 to get the current opcode. This will override any other prefetching | |
188 that might have occurred. | |
189 */ | |
190 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
191 { \ | |
192 if (_jvmti_interp_events) { \ | |
193 if (JvmtiExport::should_post_single_step()) { \ | |
194 DECACHE_STATE(); \ | |
195 SET_LAST_JAVA_FRAME(); \ | |
196 ThreadInVMfromJava trans(THREAD); \ | |
197 JvmtiExport::at_single_stepping_point(THREAD, \ | |
198 istate->method(), \ | |
199 pc); \ | |
200 RESET_LAST_JAVA_FRAME(); \ | |
201 CACHE_STATE(); \ | |
202 if (THREAD->pop_frame_pending() && \ | |
203 !THREAD->pop_frame_in_process()) { \ | |
204 goto handle_Pop_Frame; \ | |
205 } \ | |
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206 if (THREAD->jvmti_thread_state() && \ |
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207 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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208 goto handle_Early_Return; \ |
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209 } \ |
0 | 210 opcode = *pc; \ |
211 } \ | |
212 } \ | |
213 } | |
214 #else | |
215 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
216 #endif | |
217 | |
218 /* | |
219 * CONTINUE - Macro for executing the next opcode. | |
220 */ | |
221 #undef CONTINUE | |
222 #ifdef USELABELS | |
223 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
224 // initialization (which is is the initialization of the table pointer...) | |
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225 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
0 | 226 #define CONTINUE { \ |
227 opcode = *pc; \ | |
228 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
229 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
230 DISPATCH(opcode); \ | |
231 } | |
232 #else | |
233 #ifdef PREFETCH_OPCCODE | |
234 #define CONTINUE { \ | |
235 opcode = *pc; \ | |
236 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
237 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
238 continue; \ | |
239 } | |
240 #else | |
241 #define CONTINUE { \ | |
242 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
243 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
244 continue; \ | |
245 } | |
246 #endif | |
247 #endif | |
248 | |
249 | |
250 #define UPDATE_PC(opsize) {pc += opsize; } | |
251 /* | |
252 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
253 */ | |
254 #undef UPDATE_PC_AND_TOS | |
255 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
256 {pc += opsize; MORE_STACK(stack); } | |
257 | |
258 /* | |
259 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
260 * and executing the next opcode. It's somewhat similar to the combination | |
261 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
262 */ | |
263 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
264 #ifdef USELABELS | |
265 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
266 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
267 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
268 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
269 DISPATCH(opcode); \ | |
270 } | |
271 | |
272 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
273 pc += opsize; opcode = *pc; \ | |
274 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
275 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
276 DISPATCH(opcode); \ | |
277 } | |
278 #else | |
279 #ifdef PREFETCH_OPCCODE | |
280 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
281 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
282 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
283 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
284 goto do_continue; \ | |
285 } | |
286 | |
287 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
288 pc += opsize; opcode = *pc; \ | |
289 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
290 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
291 goto do_continue; \ | |
292 } | |
293 #else | |
294 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
295 pc += opsize; MORE_STACK(stack); \ | |
296 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
297 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
298 goto do_continue; \ | |
299 } | |
300 | |
301 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
302 pc += opsize; \ | |
303 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
304 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
305 goto do_continue; \ | |
306 } | |
307 #endif /* PREFETCH_OPCCODE */ | |
308 #endif /* USELABELS */ | |
309 | |
310 // About to call a new method, update the save the adjusted pc and return to frame manager | |
311 #define UPDATE_PC_AND_RETURN(opsize) \ | |
312 DECACHE_TOS(); \ | |
313 istate->set_bcp(pc+opsize); \ | |
314 return; | |
315 | |
316 | |
317 #define METHOD istate->method() | |
10233 | 318 #define GET_METHOD_COUNTERS(res) \ |
319 res = METHOD->method_counters(); \ | |
320 if (res == NULL) { \ | |
321 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
322 } | |
323 | |
0 | 324 #define OSR_REQUEST(res, branch_pc) \ |
325 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
326 /* | |
327 * For those opcodes that need to have a GC point on a backwards branch | |
328 */ | |
329 | |
330 // Backedge counting is kind of strange. The asm interpreter will increment | |
331 // the backedge counter as a separate counter but it does it's comparisons | |
332 // to the sum (scaled) of invocation counter and backedge count to make | |
333 // a decision. Seems kind of odd to sum them together like that | |
334 | |
335 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
336 | |
337 | |
338 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
339 if ((skip) <= 0) { \ | |
10233 | 340 MethodCounters* mcs; \ |
341 GET_METHOD_COUNTERS(mcs); \ | |
1078 | 342 if (UseLoopCounter) { \ |
0 | 343 bool do_OSR = UseOnStackReplacement; \ |
10233 | 344 mcs->backedge_counter()->increment(); \ |
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345 if (ProfileInterpreter) { \ |
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346 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); \ |
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347 /* Check for overflow against MDO count. */ \ |
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348 do_OSR = do_OSR \ |
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349 && (mdo_last_branch_taken_count >= (uint)InvocationCounter::InterpreterBackwardBranchLimit)\ |
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350 /* When ProfileInterpreter is on, the backedge_count comes */ \ |
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351 /* from the methodDataOop, which value does not get reset on */ \ |
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352 /* the call to frequency_counter_overflow(). To avoid */ \ |
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353 /* excessive calls to the overflow routine while the method is */ \ |
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354 /* being compiled, add a second test to make sure the overflow */ \ |
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355 /* function is called only once every overflow_frequency. */ \ |
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356 && (!(mdo_last_branch_taken_count & 1023)); \ |
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357 } else { \ |
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358 /* check for overflow of backedge counter */ \ |
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359 do_OSR = do_OSR \ |
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360 && mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter()); \ |
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361 } \ |
0 | 362 if (do_OSR) { \ |
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363 nmethod* osr_nmethod; \ |
0 | 364 OSR_REQUEST(osr_nmethod, branch_pc); \ |
365 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
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366 intptr_t* buf; \ |
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367 /* Call OSR migration with last java frame only, no checks. */ \ |
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368 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
0 | 369 istate->set_msg(do_osr); \ |
370 istate->set_osr_buf((address)buf); \ | |
371 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
372 return; \ | |
373 } \ | |
374 } \ | |
375 } /* UseCompiler ... */ \ | |
376 SAFEPOINT; \ | |
377 } | |
378 | |
379 /* | |
380 * For those opcodes that need to have a GC point on a backwards branch | |
381 */ | |
382 | |
383 /* | |
384 * Macros for caching and flushing the interpreter state. Some local | |
385 * variables need to be flushed out to the frame before we do certain | |
386 * things (like pushing frames or becomming gc safe) and some need to | |
387 * be recached later (like after popping a frame). We could use one | |
388 * macro to cache or decache everything, but this would be less then | |
389 * optimal because we don't always need to cache or decache everything | |
390 * because some things we know are already cached or decached. | |
391 */ | |
392 #undef DECACHE_TOS | |
393 #undef CACHE_TOS | |
394 #undef CACHE_PREV_TOS | |
395 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
396 | |
397 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
398 | |
399 #undef DECACHE_PC | |
400 #undef CACHE_PC | |
401 #define DECACHE_PC() istate->set_bcp(pc); | |
402 #define CACHE_PC() pc = istate->bcp(); | |
403 #define CACHE_CP() cp = istate->constants(); | |
404 #define CACHE_LOCALS() locals = istate->locals(); | |
405 #undef CACHE_FRAME | |
406 #define CACHE_FRAME() | |
407 | |
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408 // BCI() returns the current bytecode-index. |
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409 #undef BCI |
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410 #define BCI() ((int)(intptr_t)(pc - (intptr_t)istate->method()->code_base())) |
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411 |
0 | 412 /* |
413 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
414 * passed is a null ref. | |
415 * On some architectures/platforms it should be possible to do this implicitly | |
416 */ | |
417 #undef CHECK_NULL | |
14462 | 418 #define CHECK_NULL(obj_) \ |
419 if ((obj_) == NULL) { \ | |
420 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), NULL, note_nullCheck_trap); \ | |
421 } \ | |
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422 VERIFY_OOP(obj_) |
0 | 423 |
424 #define VMdoubleConstZero() 0.0 | |
425 #define VMdoubleConstOne() 1.0 | |
426 #define VMlongConstZero() (max_jlong-max_jlong) | |
427 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
428 | |
429 /* | |
430 * Alignment | |
431 */ | |
432 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
433 | |
434 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
435 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
436 | |
437 // Reload interpreter state after calling the VM or a possible GC | |
438 #define CACHE_STATE() \ | |
439 CACHE_TOS(); \ | |
440 CACHE_PC(); \ | |
441 CACHE_CP(); \ | |
442 CACHE_LOCALS(); | |
443 | |
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444 // Call the VM with last java frame only. |
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445 #define CALL_VM_NAKED_LJF(func) \ |
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446 DECACHE_STATE(); \ |
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447 SET_LAST_JAVA_FRAME(); \ |
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448 func; \ |
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449 RESET_LAST_JAVA_FRAME(); \ |
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450 CACHE_STATE(); |
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451 |
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452 // Call the VM. Don't check for pending exceptions. |
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453 #define CALL_VM_NOCHECK(func) \ |
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454 CALL_VM_NAKED_LJF(func) \ |
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455 if (THREAD->pop_frame_pending() && \ |
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456 !THREAD->pop_frame_in_process()) { \ |
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457 goto handle_Pop_Frame; \ |
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458 } \ |
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459 if (THREAD->jvmti_thread_state() && \ |
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460 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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461 goto handle_Early_Return; \ |
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462 } |
0 | 463 |
464 // Call the VM and check for pending exceptions | |
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465 #define CALL_VM(func, label) { \ |
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466 CALL_VM_NOCHECK(func); \ |
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467 if (THREAD->has_pending_exception()) goto label; \ |
0 | 468 } |
469 | |
470 /* | |
471 * BytecodeInterpreter::run(interpreterState istate) | |
472 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
473 * | |
474 * The real deal. This is where byte codes actually get interpreted. | |
475 * Basically it's a big while loop that iterates until we return from | |
476 * the method passed in. | |
477 * | |
478 * The runWithChecks is used if JVMTI is enabled. | |
479 * | |
480 */ | |
481 #if defined(VM_JVMTI) | |
482 void | |
483 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
484 #else | |
485 void | |
486 BytecodeInterpreter::run(interpreterState istate) { | |
487 #endif | |
488 | |
489 // In order to simplify some tests based on switches set at runtime | |
490 // we invoke the interpreter a single time after switches are enabled | |
491 // and set simpler to to test variables rather than method calls or complex | |
492 // boolean expressions. | |
493 | |
494 static int initialized = 0; | |
495 static int checkit = 0; | |
496 static intptr_t* c_addr = NULL; | |
497 static intptr_t c_value; | |
498 | |
499 if (checkit && *c_addr != c_value) { | |
500 os::breakpoint(); | |
501 } | |
502 #ifdef VM_JVMTI | |
503 static bool _jvmti_interp_events = 0; | |
504 #endif | |
505 | |
506 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
507 | |
508 #ifdef ASSERT | |
509 if (istate->_msg != initialize) { | |
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510 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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511 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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512 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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513 // for the old JSR292 implementation. |
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514 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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515 // methodOopDesc::extra_stack_entries() because it is computed in |
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516 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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517 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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518 // account for extra_stack_entries() anymore because at the time when it is called |
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519 // EnableInvokeDynamic was already set to false. |
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520 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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521 // switched off because of the wrong classes. |
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522 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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523 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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524 } else { |
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525 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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526 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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527 + 1), "bad stack limit"); |
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528 } |
1729 | 529 #ifndef SHARK |
530 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
531 #endif // !SHARK | |
0 | 532 } |
533 // Verify linkages. | |
534 interpreterState l = istate; | |
535 do { | |
536 assert(l == l->_self_link, "bad link"); | |
537 l = l->_prev_link; | |
538 } while (l != NULL); | |
539 // Screwups with stack management usually cause us to overwrite istate | |
540 // save a copy so we can verify it. | |
541 interpreterState orig = istate; | |
542 #endif | |
543 | |
544 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
545 register address pc = istate->bcp(); | |
546 register jubyte opcode; | |
547 register intptr_t* locals = istate->locals(); | |
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548 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
0 | 549 #ifdef LOTS_OF_REGS |
550 register JavaThread* THREAD = istate->thread(); | |
551 #else | |
552 #undef THREAD | |
553 #define THREAD istate->thread() | |
554 #endif | |
555 | |
556 #ifdef USELABELS | |
557 const static void* const opclabels_data[256] = { | |
558 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
559 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
560 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
561 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
562 | |
563 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
564 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
565 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
566 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
567 | |
568 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
569 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
570 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
571 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
572 | |
573 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
574 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
575 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
576 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
577 | |
578 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
579 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
580 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
581 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
582 | |
583 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
584 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
585 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
586 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
587 | |
588 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
589 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
590 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
591 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
592 | |
593 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
594 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
595 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
596 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
597 | |
598 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
599 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
600 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
601 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
602 | |
603 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
604 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
605 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
606 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
607 | |
608 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
609 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
610 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
611 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
612 | |
613 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
614 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
2480 | 615 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
0 | 616 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
617 | |
618 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
619 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
123 | 620 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
621 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
622 | |
623 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
0 | 624 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
625 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
626 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
627 | |
628 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
2480 | 629 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
6926 | 630 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
0 | 631 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
632 | |
633 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
634 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
635 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
636 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
637 }; | |
638 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
639 #endif /* USELABELS */ | |
640 | |
641 #ifdef ASSERT | |
642 // this will trigger a VERIFY_OOP on entry | |
643 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
644 oop rcvr = LOCALS_OBJECT(0); | |
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645 VERIFY_OOP(rcvr); |
0 | 646 } |
647 #endif | |
648 // #define HACK | |
649 #ifdef HACK | |
650 bool interesting = false; | |
651 #endif // HACK | |
652 | |
653 /* QQQ this should be a stack method so we don't know actual direction */ | |
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654 guarantee(istate->msg() == initialize || |
0 | 655 topOfStack >= istate->stack_limit() && |
656 topOfStack < istate->stack_base(), | |
657 "Stack top out of range"); | |
658 | |
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659 #ifdef CC_INTERP_PROFILE |
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660 // MethodData's last branch taken count. |
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661 uint mdo_last_branch_taken_count = 0; |
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662 #else |
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663 const uint mdo_last_branch_taken_count = 0; |
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664 #endif |
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665 |
0 | 666 switch (istate->msg()) { |
667 case initialize: { | |
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668 if (initialized++) ShouldNotReachHere(); // Only one initialize call. |
0 | 669 _compiling = (UseCompiler || CountCompiledCalls); |
670 #ifdef VM_JVMTI | |
671 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
672 #endif | |
673 return; | |
674 } | |
675 break; | |
676 case method_entry: { | |
677 THREAD->set_do_not_unlock(); | |
678 // count invocations | |
679 assert(initialized, "Interpreter not initialized"); | |
680 if (_compiling) { | |
10233 | 681 MethodCounters* mcs; |
682 GET_METHOD_COUNTERS(mcs); | |
0 | 683 if (ProfileInterpreter) { |
10233 | 684 METHOD->increment_interpreter_invocation_count(THREAD); |
0 | 685 } |
10233 | 686 mcs->invocation_counter()->increment(); |
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687 if (mcs->invocation_counter()->reached_InvocationLimit(mcs->backedge_counter())) { |
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688 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
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689 // We no longer retry on a counter overflow. |
0 | 690 } |
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691 // Get or create profile data. Check for pending (async) exceptions. |
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692 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
0 | 693 SAFEPOINT; |
694 } | |
695 | |
696 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
697 // initialize | |
698 os::breakpoint(); | |
699 } | |
700 | |
701 #ifdef HACK | |
702 { | |
703 ResourceMark rm; | |
704 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
705 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
706 tty->print_cr("entering: depth %d bci: %d", | |
707 (istate->_stack_base - istate->_stack), | |
708 istate->_bcp - istate->_method->code_base()); | |
709 interesting = true; | |
710 } | |
711 } | |
712 #endif // HACK | |
713 | |
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714 // Lock method if synchronized. |
0 | 715 if (METHOD->is_synchronized()) { |
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716 // oop rcvr = locals[0].j.r; |
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717 oop rcvr; |
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718 if (METHOD->is_static()) { |
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719 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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720 } else { |
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721 rcvr = LOCALS_OBJECT(0); |
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722 VERIFY_OOP(rcvr); |
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723 } |
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724 // The initial monitor is ours for the taking. |
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725 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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726 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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727 mon->set_obj(rcvr); |
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728 bool success = false; |
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729 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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730 markOop mark = rcvr->mark(); |
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731 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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732 // Implies UseBiasedLocking. |
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733 if (mark->has_bias_pattern()) { |
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734 uintptr_t thread_ident; |
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735 uintptr_t anticipated_bias_locking_value; |
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736 thread_ident = (uintptr_t)istate->thread(); |
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737 anticipated_bias_locking_value = |
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738 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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739 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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740 |
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741 if (anticipated_bias_locking_value == 0) { |
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742 // Already biased towards this thread, nothing to do. |
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743 if (PrintBiasedLockingStatistics) { |
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744 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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745 } |
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746 success = true; |
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747 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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748 // Try to revoke bias. |
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749 markOop header = rcvr->klass()->prototype_header(); |
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750 if (hash != markOopDesc::no_hash) { |
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751 header = header->copy_set_hash(hash); |
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752 } |
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753 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
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754 if (PrintBiasedLockingStatistics) |
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755 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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756 } |
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757 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
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758 // Try to rebias. |
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759 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
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760 if (hash != markOopDesc::no_hash) { |
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761 new_header = new_header->copy_set_hash(hash); |
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762 } |
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763 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
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764 if (PrintBiasedLockingStatistics) { |
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765 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
0 | 766 } |
767 } else { | |
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768 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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769 } |
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770 success = true; |
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771 } else { |
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772 // Try to bias towards thread in case object is anonymously biased. |
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773 markOop header = (markOop) ((uintptr_t) mark & |
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774 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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775 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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776 if (hash != markOopDesc::no_hash) { |
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777 header = header->copy_set_hash(hash); |
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778 } |
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779 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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780 // Debugging hint. |
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781 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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782 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
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783 if (PrintBiasedLockingStatistics) { |
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784 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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785 } |
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786 } else { |
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787 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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788 } |
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789 success = true; |
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790 } |
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791 } |
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792 |
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793 // Traditional lightweight locking. |
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794 if (!success) { |
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795 markOop displaced = rcvr->mark()->set_unlocked(); |
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796 mon->lock()->set_displaced_header(displaced); |
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797 bool call_vm = UseHeavyMonitors; |
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798 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
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799 // Is it simple recursive case? |
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800 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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801 mon->lock()->set_displaced_header(NULL); |
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802 } else { |
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803 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
0 | 804 } |
805 } | |
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806 } |
0 | 807 } |
808 THREAD->clr_do_not_unlock(); | |
809 | |
810 // Notify jvmti | |
811 #ifdef VM_JVMTI | |
812 if (_jvmti_interp_events) { | |
813 // Whenever JVMTI puts a thread in interp_only_mode, method | |
814 // entry/exit events are sent for that thread to track stack depth. | |
815 if (THREAD->is_interp_only_mode()) { | |
816 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
817 handle_exception); | |
818 } | |
819 } | |
820 #endif /* VM_JVMTI */ | |
821 | |
822 goto run; | |
823 } | |
824 | |
825 case popping_frame: { | |
826 // returned from a java call to pop the frame, restart the call | |
827 // clear the message so we don't confuse ourselves later | |
828 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
829 istate->set_msg(no_request); | |
14420
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830 if (_compiling) { |
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831 // Set MDX back to the ProfileData of the invoke bytecode that will be |
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832 // restarted. |
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833 SET_MDX(NULL); |
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834 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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835 } |
0 | 836 THREAD->clr_pop_frame_in_process(); |
837 goto run; | |
838 } | |
839 | |
840 case method_resume: { | |
841 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
842 // resume | |
843 os::breakpoint(); | |
844 } | |
845 #ifdef HACK | |
846 { | |
847 ResourceMark rm; | |
848 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
849 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
850 tty->print_cr("resume: depth %d bci: %d", | |
851 (istate->_stack_base - istate->_stack) , | |
852 istate->_bcp - istate->_method->code_base()); | |
853 interesting = true; | |
854 } | |
855 } | |
856 #endif // HACK | |
857 // returned from a java call, continue executing. | |
858 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
859 goto handle_Pop_Frame; | |
860 } | |
14400
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861 if (THREAD->jvmti_thread_state() && |
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862 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
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863 goto handle_Early_Return; |
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864 } |
0 | 865 |
866 if (THREAD->has_pending_exception()) goto handle_exception; | |
867 // Update the pc by the saved amount of the invoke bytecode size | |
868 UPDATE_PC(istate->bcp_advance()); | |
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869 |
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870 if (_compiling) { |
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871 // Get or create profile data. Check for pending (async) exceptions. |
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872 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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873 } |
0 | 874 goto run; |
875 } | |
876 | |
877 case deopt_resume2: { | |
878 // Returned from an opcode that will reexecute. Deopt was | |
879 // a result of a PopFrame request. | |
880 // | |
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881 |
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882 if (_compiling) { |
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883 // Get or create profile data. Check for pending (async) exceptions. |
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884 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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885 } |
0 | 886 goto run; |
887 } | |
888 | |
889 case deopt_resume: { | |
890 // Returned from an opcode that has completed. The stack has | |
891 // the result all we need to do is skip across the bytecode | |
892 // and continue (assuming there is no exception pending) | |
893 // | |
894 // compute continuation length | |
895 // | |
896 // Note: it is possible to deopt at a return_register_finalizer opcode | |
897 // because this requires entering the vm to do the registering. While the | |
898 // opcode is complete we can't advance because there are no more opcodes | |
899 // much like trying to deopt at a poll return. In that has we simply | |
900 // get out of here | |
901 // | |
2142 | 902 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
0 | 903 // this will do the right thing even if an exception is pending. |
904 goto handle_return; | |
905 } | |
2142 | 906 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
0 | 907 if (THREAD->has_pending_exception()) goto handle_exception; |
14420
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908 |
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909 if (_compiling) { |
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910 // Get or create profile data. Check for pending (async) exceptions. |
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911 BI_PROFILE_GET_OR_CREATE_METHOD_DATA(handle_exception); |
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912 } |
0 | 913 goto run; |
914 } | |
915 case got_monitors: { | |
916 // continue locking now that we have a monitor to use | |
917 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
918 oop lockee = STACK_OBJECT(-1); | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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919 VERIFY_OOP(lockee); |
0 | 920 // derefing's lockee ought to provoke implicit null check |
921 // find a free monitor | |
922 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
923 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
924 entry->set_obj(lockee); | |
14395
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925 bool success = false; |
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926 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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|
927 |
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928 markOop mark = lockee->mark(); |
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929 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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930 // implies UseBiasedLocking |
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931 if (mark->has_bias_pattern()) { |
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|
932 uintptr_t thread_ident; |
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|
933 uintptr_t anticipated_bias_locking_value; |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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934 thread_ident = (uintptr_t)istate->thread(); |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
935 anticipated_bias_locking_value = |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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936 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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937 ~((uintptr_t) markOopDesc::age_mask_in_place); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
938 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
939 if (anticipated_bias_locking_value == 0) { |
48d3d0eb193b
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|
940 // already biased towards this thread, nothing to do |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
941 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
942 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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 success = true; |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
945 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
946 // try revoke bias |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
947 markOop header = lockee->klass()->prototype_header(); |
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|
948 if (hash != markOopDesc::no_hash) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
949 header = header->copy_set_hash(hash); |
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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|
951 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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|
952 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
953 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
954 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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|
955 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
956 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
957 // try rebias |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
958 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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|
959 if (hash != markOopDesc::no_hash) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
960 new_header = new_header->copy_set_hash(hash); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
961 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
962 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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|
963 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
964 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
965 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
966 } else { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
967 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
968 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
969 success = true; |
0 | 970 } else { |
14395
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|
971 // try to bias towards thread in case object is anonymously biased |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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972 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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|
973 (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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|
974 if (hash != markOopDesc::no_hash) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
975 header = header->copy_set_hash(hash); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
976 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
977 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
978 // debugging hint |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
979 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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|
980 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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diff
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|
981 if (PrintBiasedLockingStatistics) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
changeset
|
982 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
983 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
984 } else { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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diff
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|
985 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
986 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
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diff
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|
987 success = true; |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
988 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
989 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
990 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
991 // traditional lightweight locking |
48d3d0eb193b
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|
992 if (!success) { |
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|
993 markOop displaced = lockee->mark()->set_unlocked(); |
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|
994 entry->lock()->set_displaced_header(displaced); |
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|
995 bool call_vm = UseHeavyMonitors; |
48d3d0eb193b
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|
996 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
48d3d0eb193b
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|
997 // Is it simple recursive case? |
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998 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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999 entry->lock()->set_displaced_header(NULL); |
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1000 } else { |
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1001 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1002 } |
0 | 1003 } |
1004 } | |
1005 UPDATE_PC_AND_TOS(1, -1); | |
1006 goto run; | |
1007 } | |
1008 default: { | |
1009 fatal("Unexpected message from frame manager"); | |
1010 } | |
1011 } | |
1012 | |
1013 run: | |
1014 | |
1015 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
1016 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
1017 #ifdef PREFETCH_OPCCODE | |
1018 opcode = *pc; /* prefetch first opcode */ | |
1019 #endif | |
1020 | |
1021 #ifndef USELABELS | |
1022 while (1) | |
1023 #endif | |
1024 { | |
1025 #ifndef PREFETCH_OPCCODE | |
1026 opcode = *pc; | |
1027 #endif | |
1028 // Seems like this happens twice per opcode. At worst this is only | |
1029 // need at entry to the loop. | |
1030 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
1031 /* Using this labels avoids double breakpoints when quickening and | |
1032 * when returing from transition frames. | |
1033 */ | |
1034 opcode_switch: | |
1035 assert(istate == orig, "Corrupted istate"); | |
1036 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
1037 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
1038 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
1039 | |
1040 #ifdef USELABELS | |
1041 DISPATCH(opcode); | |
1042 #else | |
1043 switch (opcode) | |
1044 #endif | |
1045 { | |
1046 CASE(_nop): | |
1047 UPDATE_PC_AND_CONTINUE(1); | |
1048 | |
1049 /* Push miscellaneous constants onto the stack. */ | |
1050 | |
1051 CASE(_aconst_null): | |
1052 SET_STACK_OBJECT(NULL, 0); | |
1053 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1054 | |
1055 #undef OPC_CONST_n | |
1056 #define OPC_CONST_n(opcode, const_type, value) \ | |
1057 CASE(opcode): \ | |
1058 SET_STACK_ ## const_type(value, 0); \ | |
1059 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1060 | |
1061 OPC_CONST_n(_iconst_m1, INT, -1); | |
1062 OPC_CONST_n(_iconst_0, INT, 0); | |
1063 OPC_CONST_n(_iconst_1, INT, 1); | |
1064 OPC_CONST_n(_iconst_2, INT, 2); | |
1065 OPC_CONST_n(_iconst_3, INT, 3); | |
1066 OPC_CONST_n(_iconst_4, INT, 4); | |
1067 OPC_CONST_n(_iconst_5, INT, 5); | |
1068 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
1069 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
1070 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
1071 | |
1072 #undef OPC_CONST2_n | |
1073 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
1074 CASE(_##opcname): \ | |
1075 { \ | |
1076 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
1077 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1078 } | |
1079 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
1080 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
1081 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
1082 OPC_CONST2_n(lconst_1, One, long, LONG); | |
1083 | |
1084 /* Load constant from constant pool: */ | |
1085 | |
1086 /* Push a 1-byte signed integer value onto the stack. */ | |
1087 CASE(_bipush): | |
1088 SET_STACK_INT((jbyte)(pc[1]), 0); | |
1089 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1090 | |
1091 /* Push a 2-byte signed integer constant onto the stack. */ | |
1092 CASE(_sipush): | |
1093 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
1094 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
1095 | |
1096 /* load from local variable */ | |
1097 | |
1098 CASE(_aload): | |
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1099 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
0 | 1100 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
1101 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1102 | |
1103 CASE(_iload): | |
1104 CASE(_fload): | |
1105 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
1106 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1107 | |
1108 CASE(_lload): | |
1109 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
1110 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1111 | |
1112 CASE(_dload): | |
1113 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
1114 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1115 | |
1116 #undef OPC_LOAD_n | |
1117 #define OPC_LOAD_n(num) \ | |
1118 CASE(_aload_##num): \ | |
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1119 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
0 | 1120 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
1121 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1122 \ | |
1123 CASE(_iload_##num): \ | |
1124 CASE(_fload_##num): \ | |
1125 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
1126 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1127 \ | |
1128 CASE(_lload_##num): \ | |
1129 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
1130 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1131 CASE(_dload_##num): \ | |
1132 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
1133 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1134 | |
1135 OPC_LOAD_n(0); | |
1136 OPC_LOAD_n(1); | |
1137 OPC_LOAD_n(2); | |
1138 OPC_LOAD_n(3); | |
1139 | |
1140 /* store to a local variable */ | |
1141 | |
1142 CASE(_astore): | |
1143 astore(topOfStack, -1, locals, pc[1]); | |
1144 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1145 | |
1146 CASE(_istore): | |
1147 CASE(_fstore): | |
1148 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
1149 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1150 | |
1151 CASE(_lstore): | |
1152 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
1153 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1154 | |
1155 CASE(_dstore): | |
1156 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
1157 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1158 | |
1159 CASE(_wide): { | |
1160 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
1161 | |
1162 opcode = pc[1]; | |
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1163 |
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1164 // Wide and it's sub-bytecode are counted as separate instructions. If we |
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1165 // don't account for this here, the bytecode trace skips the next bytecode. |
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1166 DO_UPDATE_INSTRUCTION_COUNT(opcode); |
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1167 |
0 | 1168 switch(opcode) { |
1169 case Bytecodes::_aload: | |
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1170 VERIFY_OOP(LOCALS_OBJECT(reg)); |
0 | 1171 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
1172 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1173 | |
1174 case Bytecodes::_iload: | |
1175 case Bytecodes::_fload: | |
1176 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
1177 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1178 | |
1179 case Bytecodes::_lload: | |
1180 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1181 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1182 | |
1183 case Bytecodes::_dload: | |
1184 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1185 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1186 | |
1187 case Bytecodes::_astore: | |
1188 astore(topOfStack, -1, locals, reg); | |
1189 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1190 | |
1191 case Bytecodes::_istore: | |
1192 case Bytecodes::_fstore: | |
1193 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
1194 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1195 | |
1196 case Bytecodes::_lstore: | |
1197 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
1198 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1199 | |
1200 case Bytecodes::_dstore: | |
1201 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
1202 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1203 | |
1204 case Bytecodes::_iinc: { | |
1205 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
1206 // Be nice to see what this generates.... QQQ | |
1207 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
1208 UPDATE_PC_AND_CONTINUE(6); | |
1209 } | |
1210 case Bytecodes::_ret: | |
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1211 // Profile ret. |
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1212 BI_PROFILE_UPDATE_RET(/*bci=*/((int)(intptr_t)(LOCALS_ADDR(reg)))); |
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1213 // Now, update the pc. |
0 | 1214 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); |
1215 UPDATE_PC_AND_CONTINUE(0); | |
1216 default: | |
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1217 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode", note_no_trap); |
0 | 1218 } |
1219 } | |
1220 | |
1221 | |
1222 #undef OPC_STORE_n | |
1223 #define OPC_STORE_n(num) \ | |
1224 CASE(_astore_##num): \ | |
1225 astore(topOfStack, -1, locals, num); \ | |
1226 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1227 CASE(_istore_##num): \ | |
1228 CASE(_fstore_##num): \ | |
1229 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
1230 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1231 | |
1232 OPC_STORE_n(0); | |
1233 OPC_STORE_n(1); | |
1234 OPC_STORE_n(2); | |
1235 OPC_STORE_n(3); | |
1236 | |
1237 #undef OPC_DSTORE_n | |
1238 #define OPC_DSTORE_n(num) \ | |
1239 CASE(_dstore_##num): \ | |
1240 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
1241 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1242 CASE(_lstore_##num): \ | |
1243 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
1244 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1245 | |
1246 OPC_DSTORE_n(0); | |
1247 OPC_DSTORE_n(1); | |
1248 OPC_DSTORE_n(2); | |
1249 OPC_DSTORE_n(3); | |
1250 | |
1251 /* stack pop, dup, and insert opcodes */ | |
1252 | |
1253 | |
1254 CASE(_pop): /* Discard the top item on the stack */ | |
1255 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1256 | |
1257 | |
1258 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
1259 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1260 | |
1261 | |
1262 CASE(_dup): /* Duplicate the top item on the stack */ | |
1263 dup(topOfStack); | |
1264 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1265 | |
1266 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
1267 dup2(topOfStack); | |
1268 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1269 | |
1270 CASE(_dup_x1): /* insert top word two down */ | |
1271 dup_x1(topOfStack); | |
1272 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1273 | |
1274 CASE(_dup_x2): /* insert top word three down */ | |
1275 dup_x2(topOfStack); | |
1276 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1277 | |
1278 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
1279 dup2_x1(topOfStack); | |
1280 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1281 | |
1282 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
1283 dup2_x2(topOfStack); | |
1284 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1285 | |
1286 CASE(_swap): { /* swap top two elements on the stack */ | |
1287 swap(topOfStack); | |
1288 UPDATE_PC_AND_CONTINUE(1); | |
1289 } | |
1290 | |
1291 /* Perform various binary integer operations */ | |
1292 | |
1293 #undef OPC_INT_BINARY | |
1294 #define OPC_INT_BINARY(opcname, opname, test) \ | |
1295 CASE(_i##opcname): \ | |
1296 if (test && (STACK_INT(-1) == 0)) { \ | |
1297 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1298 "/ by zero", note_div0Check_trap); \ |
0 | 1299 } \ |
1300 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1301 STACK_INT(-1)), \ | |
1302 -2); \ | |
1303 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1304 CASE(_l##opcname): \ | |
1305 { \ | |
1306 if (test) { \ | |
1307 jlong l1 = STACK_LONG(-1); \ | |
1308 if (VMlongEqz(l1)) { \ | |
1309 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1310 "/ by long zero", note_div0Check_trap); \ |
0 | 1311 } \ |
1312 } \ | |
1313 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
1314 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
1315 STACK_LONG(-1)), \ | |
1316 -3); \ | |
1317 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1318 } | |
1319 | |
1320 OPC_INT_BINARY(add, Add, 0); | |
1321 OPC_INT_BINARY(sub, Sub, 0); | |
1322 OPC_INT_BINARY(mul, Mul, 0); | |
1323 OPC_INT_BINARY(and, And, 0); | |
1324 OPC_INT_BINARY(or, Or, 0); | |
1325 OPC_INT_BINARY(xor, Xor, 0); | |
1326 OPC_INT_BINARY(div, Div, 1); | |
1327 OPC_INT_BINARY(rem, Rem, 1); | |
1328 | |
1329 | |
1330 /* Perform various binary floating number operations */ | |
1331 /* On some machine/platforms/compilers div zero check can be implicit */ | |
1332 | |
1333 #undef OPC_FLOAT_BINARY | |
1334 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
1335 CASE(_d##opcname): { \ | |
1336 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
1337 STACK_DOUBLE(-1)), \ | |
1338 -3); \ | |
1339 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1340 } \ | |
1341 CASE(_f##opcname): \ | |
1342 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
1343 STACK_FLOAT(-1)), \ | |
1344 -2); \ | |
1345 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1346 | |
1347 | |
1348 OPC_FLOAT_BINARY(add, Add); | |
1349 OPC_FLOAT_BINARY(sub, Sub); | |
1350 OPC_FLOAT_BINARY(mul, Mul); | |
1351 OPC_FLOAT_BINARY(div, Div); | |
1352 OPC_FLOAT_BINARY(rem, Rem); | |
1353 | |
1354 /* Shift operations | |
1355 * Shift left int and long: ishl, lshl | |
1356 * Logical shift right int and long w/zero extension: iushr, lushr | |
1357 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
1358 */ | |
1359 | |
1360 #undef OPC_SHIFT_BINARY | |
1361 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
1362 CASE(_i##opcname): \ | |
1363 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1364 STACK_INT(-1)), \ | |
1365 -2); \ | |
1366 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1367 CASE(_l##opcname): \ | |
1368 { \ | |
1369 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
1370 STACK_INT(-1)), \ | |
1371 -2); \ | |
1372 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1373 } | |
1374 | |
1375 OPC_SHIFT_BINARY(shl, Shl); | |
1376 OPC_SHIFT_BINARY(shr, Shr); | |
1377 OPC_SHIFT_BINARY(ushr, Ushr); | |
1378 | |
1379 /* Increment local variable by constant */ | |
1380 CASE(_iinc): | |
1381 { | |
1382 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
1383 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
1384 UPDATE_PC_AND_CONTINUE(3); | |
1385 } | |
1386 | |
1387 /* negate the value on the top of the stack */ | |
1388 | |
1389 CASE(_ineg): | |
1390 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
1391 UPDATE_PC_AND_CONTINUE(1); | |
1392 | |
1393 CASE(_fneg): | |
1394 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
1395 UPDATE_PC_AND_CONTINUE(1); | |
1396 | |
1397 CASE(_lneg): | |
1398 { | |
1399 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
1400 UPDATE_PC_AND_CONTINUE(1); | |
1401 } | |
1402 | |
1403 CASE(_dneg): | |
1404 { | |
1405 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
1406 UPDATE_PC_AND_CONTINUE(1); | |
1407 } | |
1408 | |
1409 /* Conversion operations */ | |
1410 | |
1411 CASE(_i2f): /* convert top of stack int to float */ | |
1412 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
1413 UPDATE_PC_AND_CONTINUE(1); | |
1414 | |
1415 CASE(_i2l): /* convert top of stack int to long */ | |
1416 { | |
1417 // this is ugly QQQ | |
1418 jlong r = VMint2Long(STACK_INT(-1)); | |
1419 MORE_STACK(-1); // Pop | |
1420 SET_STACK_LONG(r, 1); | |
1421 | |
1422 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1423 } | |
1424 | |
1425 CASE(_i2d): /* convert top of stack int to double */ | |
1426 { | |
1427 // this is ugly QQQ (why cast to jlong?? ) | |
1428 jdouble r = (jlong)STACK_INT(-1); | |
1429 MORE_STACK(-1); // Pop | |
1430 SET_STACK_DOUBLE(r, 1); | |
1431 | |
1432 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1433 } | |
1434 | |
1435 CASE(_l2i): /* convert top of stack long to int */ | |
1436 { | |
1437 jint r = VMlong2Int(STACK_LONG(-1)); | |
1438 MORE_STACK(-2); // Pop | |
1439 SET_STACK_INT(r, 0); | |
1440 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1441 } | |
1442 | |
1443 CASE(_l2f): /* convert top of stack long to float */ | |
1444 { | |
1445 jlong r = STACK_LONG(-1); | |
1446 MORE_STACK(-2); // Pop | |
1447 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
1448 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1449 } | |
1450 | |
1451 CASE(_l2d): /* convert top of stack long to double */ | |
1452 { | |
1453 jlong r = STACK_LONG(-1); | |
1454 MORE_STACK(-2); // Pop | |
1455 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
1456 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1457 } | |
1458 | |
1459 CASE(_f2i): /* Convert top of stack float to int */ | |
1460 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
1461 UPDATE_PC_AND_CONTINUE(1); | |
1462 | |
1463 CASE(_f2l): /* convert top of stack float to long */ | |
1464 { | |
1465 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
1466 MORE_STACK(-1); // POP | |
1467 SET_STACK_LONG(r, 1); | |
1468 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1469 } | |
1470 | |
1471 CASE(_f2d): /* convert top of stack float to double */ | |
1472 { | |
1473 jfloat f; | |
1474 jdouble r; | |
1475 f = STACK_FLOAT(-1); | |
1476 r = (jdouble) f; | |
1477 MORE_STACK(-1); // POP | |
1478 SET_STACK_DOUBLE(r, 1); | |
1479 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1480 } | |
1481 | |
1482 CASE(_d2i): /* convert top of stack double to int */ | |
1483 { | |
1484 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
1485 MORE_STACK(-2); | |
1486 SET_STACK_INT(r1, 0); | |
1487 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1488 } | |
1489 | |
1490 CASE(_d2f): /* convert top of stack double to float */ | |
1491 { | |
1492 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
1493 MORE_STACK(-2); | |
1494 SET_STACK_FLOAT(r1, 0); | |
1495 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1496 } | |
1497 | |
1498 CASE(_d2l): /* convert top of stack double to long */ | |
1499 { | |
1500 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
1501 MORE_STACK(-2); | |
1502 SET_STACK_LONG(r1, 1); | |
1503 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1504 } | |
1505 | |
1506 CASE(_i2b): | |
1507 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
1508 UPDATE_PC_AND_CONTINUE(1); | |
1509 | |
1510 CASE(_i2c): | |
1511 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
1512 UPDATE_PC_AND_CONTINUE(1); | |
1513 | |
1514 CASE(_i2s): | |
1515 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
1516 UPDATE_PC_AND_CONTINUE(1); | |
1517 | |
1518 /* comparison operators */ | |
1519 | |
1520 | |
1521 #define COMPARISON_OP(name, comparison) \ | |
1522 CASE(_if_icmp##name): { \ | |
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1523 const bool cmp = (STACK_INT(-2) comparison STACK_INT(-1)); \ |
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1524 int skip = cmp \ |
0 | 1525 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1526 address branch_pc = pc; \ | |
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1527 /* Profile branch. */ \ |
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1528 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1529 UPDATE_PC_AND_TOS(skip, -2); \ |
1530 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1531 CONTINUE; \ | |
1532 } \ | |
1533 CASE(_if##name): { \ | |
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1534 const bool cmp = (STACK_INT(-1) comparison 0); \ |
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1535 int skip = cmp \ |
0 | 1536 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1537 address branch_pc = pc; \ | |
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1538 /* Profile branch. */ \ |
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1539 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1540 UPDATE_PC_AND_TOS(skip, -1); \ |
1541 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1542 CONTINUE; \ | |
1543 } | |
1544 | |
1545 #define COMPARISON_OP2(name, comparison) \ | |
1546 COMPARISON_OP(name, comparison) \ | |
1547 CASE(_if_acmp##name): { \ | |
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1548 const bool cmp = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)); \ |
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1549 int skip = cmp \ |
0 | 1550 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1551 address branch_pc = pc; \ | |
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1552 /* Profile branch. */ \ |
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1553 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1554 UPDATE_PC_AND_TOS(skip, -2); \ |
1555 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1556 CONTINUE; \ | |
1557 } | |
1558 | |
1559 #define NULL_COMPARISON_NOT_OP(name) \ | |
1560 CASE(_if##name): { \ | |
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1561 const bool cmp = (!(STACK_OBJECT(-1) == NULL)); \ |
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1562 int skip = cmp \ |
0 | 1563 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1564 address branch_pc = pc; \ | |
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1565 /* Profile branch. */ \ |
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1566 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1567 UPDATE_PC_AND_TOS(skip, -1); \ |
1568 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1569 CONTINUE; \ | |
1570 } | |
1571 | |
1572 #define NULL_COMPARISON_OP(name) \ | |
1573 CASE(_if##name): { \ | |
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1574 const bool cmp = ((STACK_OBJECT(-1) == NULL)); \ |
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1575 int skip = cmp \ |
0 | 1576 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1577 address branch_pc = pc; \ | |
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1578 /* Profile branch. */ \ |
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1579 BI_PROFILE_UPDATE_BRANCH(/*is_taken=*/cmp); \ |
0 | 1580 UPDATE_PC_AND_TOS(skip, -1); \ |
1581 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1582 CONTINUE; \ | |
1583 } | |
1584 COMPARISON_OP(lt, <); | |
1585 COMPARISON_OP(gt, >); | |
1586 COMPARISON_OP(le, <=); | |
1587 COMPARISON_OP(ge, >=); | |
1588 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
1589 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
1590 NULL_COMPARISON_OP(null); | |
1591 NULL_COMPARISON_NOT_OP(nonnull); | |
1592 | |
1593 /* Goto pc at specified offset in switch table. */ | |
1594 | |
1595 CASE(_tableswitch): { | |
1596 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1597 int32_t key = STACK_INT(-1); | |
1598 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
1599 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
1600 int32_t skip; | |
1601 key -= low; | |
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1602 if (((uint32_t) key > (uint32_t)(high - low))) { |
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1603 key = -1; |
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1604 skip = Bytes::get_Java_u4((address)&lpc[0]); |
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|
1605 } else { |
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1606 skip = Bytes::get_Java_u4((address)&lpc[key + 3]); |
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|
1607 } |
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|
1608 // Profile switch. |
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|
1609 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/key); |
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|
1610 // Does this really need a full backedge check (osr)? |
0 | 1611 address branch_pc = pc; |
1612 UPDATE_PC_AND_TOS(skip, -1); | |
1613 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1614 CONTINUE; | |
1615 } | |
1616 | |
14420
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1617 /* Goto pc whose table entry matches specified key. */ |
0 | 1618 |
1619 CASE(_lookupswitch): { | |
1620 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1621 int32_t key = STACK_INT(-1); | |
1622 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
14420
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|
1623 // Remember index. |
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|
1624 int index = -1; |
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|
1625 int newindex = 0; |
0 | 1626 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); |
1627 while (--npairs >= 0) { | |
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|
1628 lpc += 2; |
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|
1629 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { |
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|
1630 skip = Bytes::get_Java_u4((address)&lpc[1]); |
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|
1631 index = newindex; |
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|
1632 break; |
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|
1633 } |
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|
1634 newindex += 1; |
0 | 1635 } |
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|
1636 // Profile switch. |
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|
1637 BI_PROFILE_UPDATE_SWITCH(/*switch_index=*/index); |
0 | 1638 address branch_pc = pc; |
1639 UPDATE_PC_AND_TOS(skip, -1); | |
1640 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1641 CONTINUE; | |
1642 } | |
1643 | |
1644 CASE(_fcmpl): | |
1645 CASE(_fcmpg): | |
1646 { | |
1647 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
1648 STACK_FLOAT(-1), | |
1649 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
1650 -2); | |
1651 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1652 } | |
1653 | |
1654 CASE(_dcmpl): | |
1655 CASE(_dcmpg): | |
1656 { | |
1657 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
1658 STACK_DOUBLE(-1), | |
1659 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
1660 MORE_STACK(-4); // Pop | |
1661 SET_STACK_INT(r, 0); | |
1662 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1663 } | |
1664 | |
1665 CASE(_lcmp): | |
1666 { | |
1667 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
1668 MORE_STACK(-4); | |
1669 SET_STACK_INT(r, 0); | |
1670 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1671 } | |
1672 | |
1673 | |
1674 /* Return from a method */ | |
1675 | |
1676 CASE(_areturn): | |
1677 CASE(_ireturn): | |
1678 CASE(_freturn): | |
1679 { | |
1680 // Allow a safepoint before returning to frame manager. | |
1681 SAFEPOINT; | |
1682 | |
1683 goto handle_return; | |
1684 } | |
1685 | |
1686 CASE(_lreturn): | |
1687 CASE(_dreturn): | |
1688 { | |
1689 // Allow a safepoint before returning to frame manager. | |
1690 SAFEPOINT; | |
1691 goto handle_return; | |
1692 } | |
1693 | |
1694 CASE(_return_register_finalizer): { | |
1695 | |
1696 oop rcvr = LOCALS_OBJECT(0); | |
1681
126ea7725993
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1697 VERIFY_OOP(rcvr); |
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1698 if (rcvr->klass()->has_finalizer()) { |
0 | 1699 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
1700 } | |
1701 goto handle_return; | |
1702 } | |
1703 CASE(_return): { | |
1704 | |
1705 // Allow a safepoint before returning to frame manager. | |
1706 SAFEPOINT; | |
1707 goto handle_return; | |
1708 } | |
1709 | |
1710 /* Array access byte-codes */ | |
1711 | |
1712 /* Every array access byte-code starts out like this */ | |
1713 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
1714 #define ARRAY_INTRO(arrayOff) \ | |
1715 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
1716 jint index = STACK_INT(arrayOff + 1); \ | |
1717 char message[jintAsStringSize]; \ | |
1718 CHECK_NULL(arrObj); \ | |
1719 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
1720 sprintf(message, "%d", index); \ | |
1721 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
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1722 message, note_rangeCheck_trap); \ |
0 | 1723 } |
1724 | |
1725 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
1726 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
1727 { \ | |
1728 ARRAY_INTRO(-2); \ | |
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1729 (void)extra; \ |
0 | 1730 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
1731 -2); \ | |
1732 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1733 } | |
1734 | |
1735 /* 64-bit loads */ | |
1736 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
1737 { \ | |
1738 ARRAY_INTRO(-2); \ | |
1739 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
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|
1740 (void)extra; \ |
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|
1741 UPDATE_PC_AND_CONTINUE(1); \ |
0 | 1742 } |
1743 | |
1744 CASE(_iaload): | |
1745 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
1746 CASE(_faload): | |
1747 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
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1748 CASE(_aaload): { |
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|
1749 ARRAY_INTRO(-2); |
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|
1750 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
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1751 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
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|
1752 } |
0 | 1753 CASE(_baload): |
1754 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1755 CASE(_caload): | |
1756 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1757 CASE(_saload): | |
1758 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1759 CASE(_laload): | |
1760 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
1761 CASE(_daload): | |
1762 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1763 | |
1764 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
1765 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
1766 { \ | |
1767 ARRAY_INTRO(-3); \ | |
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|
1768 (void)extra; \ |
0 | 1769 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1770 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
1771 } | |
1772 | |
1773 /* 64-bit stores */ | |
1774 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
1775 { \ | |
1776 ARRAY_INTRO(-4); \ | |
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|
1777 (void)extra; \ |
0 | 1778 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1779 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
1780 } | |
1781 | |
1782 CASE(_iastore): | |
1783 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
1784 CASE(_fastore): | |
1785 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
1786 /* | |
1787 * This one looks different because of the assignability check | |
1788 */ | |
1789 CASE(_aastore): { | |
1790 oop rhsObject = STACK_OBJECT(-1); | |
1681
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1791 VERIFY_OOP(rhsObject); |
0 | 1792 ARRAY_INTRO( -3); |
1793 // arrObj, index are set | |
1794 if (rhsObject != NULL) { | |
1795 /* Check assignability of rhsObject into arrObj */ | |
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1796 Klass* rhsKlass = rhsObject->klass(); // EBX (subclass) |
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1797 Klass* elemKlass = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
0 | 1798 // |
1799 // Check for compatibilty. This check must not GC!! | |
1800 // Seems way more expensive now that we must dispatch | |
1801 // | |
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1802 if (rhsKlass != elemKlass && !rhsKlass->is_subtype_of(elemKlass)) { // ebx->is... |
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1803 // Decrement counter if subtype check failed. |
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1804 BI_PROFILE_SUBTYPECHECK_FAILED(rhsKlass); |
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1805 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), "", note_arrayCheck_trap); |
0 | 1806 } |
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1807 // Profile checkcast with null_seen and receiver. |
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1808 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, rhsKlass); |
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1809 } else { |
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1810 // Profile checkcast with null_seen and receiver. |
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1811 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
0 | 1812 } |
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1813 ((objArrayOop) arrObj)->obj_at_put(index, rhsObject); |
0 | 1814 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
1815 } | |
1816 CASE(_bastore): | |
1817 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1818 CASE(_castore): | |
1819 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1820 CASE(_sastore): | |
1821 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1822 CASE(_lastore): | |
1823 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
1824 CASE(_dastore): | |
1825 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1826 | |
1827 CASE(_arraylength): | |
1828 { | |
1829 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
1830 CHECK_NULL(ary); | |
1831 SET_STACK_INT(ary->length(), -1); | |
1832 UPDATE_PC_AND_CONTINUE(1); | |
1833 } | |
1834 | |
1835 /* monitorenter and monitorexit for locking/unlocking an object */ | |
1836 | |
1837 CASE(_monitorenter): { | |
1838 oop lockee = STACK_OBJECT(-1); | |
1839 // derefing's lockee ought to provoke implicit null check | |
1840 CHECK_NULL(lockee); | |
1841 // find a free monitor or one already allocated for this object | |
1842 // if we find a matching object then we need a new monitor | |
1843 // since this is recursive enter | |
1844 BasicObjectLock* limit = istate->monitor_base(); | |
1845 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1846 BasicObjectLock* entry = NULL; | |
1847 while (most_recent != limit ) { | |
1848 if (most_recent->obj() == NULL) entry = most_recent; | |
1849 else if (most_recent->obj() == lockee) break; | |
1850 most_recent++; | |
1851 } | |
1852 if (entry != NULL) { | |
1853 entry->set_obj(lockee); | |
14395
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1854 int success = false; |
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1855 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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1856 |
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1857 markOop mark = lockee->mark(); |
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1858 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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1859 // implies UseBiasedLocking |
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1860 if (mark->has_bias_pattern()) { |
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1861 uintptr_t thread_ident; |
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1862 uintptr_t anticipated_bias_locking_value; |
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1863 thread_ident = (uintptr_t)istate->thread(); |
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1864 anticipated_bias_locking_value = |
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1865 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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1866 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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1867 |
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1868 if (anticipated_bias_locking_value == 0) { |
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1869 // already biased towards this thread, nothing to do |
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1870 if (PrintBiasedLockingStatistics) { |
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1871 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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1872 } |
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1873 success = true; |
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1874 } |
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1875 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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1876 // try revoke bias |
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1877 markOop header = lockee->klass()->prototype_header(); |
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1878 if (hash != markOopDesc::no_hash) { |
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1879 header = header->copy_set_hash(hash); |
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1880 } |
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1881 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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1882 if (PrintBiasedLockingStatistics) |
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1883 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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1884 } |
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1885 } |
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1886 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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1887 // try rebias |
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1888 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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1889 if (hash != markOopDesc::no_hash) { |
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1890 new_header = new_header->copy_set_hash(hash); |
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1891 } |
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1892 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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1893 if (PrintBiasedLockingStatistics) |
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1894 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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1895 } |
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1896 else { |
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1897 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1898 } |
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1899 success = true; |
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1900 } |
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1901 else { |
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1902 // try to bias towards thread in case object is anonymously biased |
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1903 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1904 (uintptr_t)markOopDesc::age_mask_in_place | |
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1905 epoch_mask_in_place)); |
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1906 if (hash != markOopDesc::no_hash) { |
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1907 header = header->copy_set_hash(hash); |
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1908 } |
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1909 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1910 // debugging hint |
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1911 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1912 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1913 if (PrintBiasedLockingStatistics) |
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1914 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1915 } |
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1916 else { |
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1917 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1918 } |
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1919 success = true; |
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1920 } |
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1921 } |
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1922 |
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1923 // traditional lightweight locking |
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1924 if (!success) { |
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1925 markOop displaced = lockee->mark()->set_unlocked(); |
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1926 entry->lock()->set_displaced_header(displaced); |
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1927 bool call_vm = UseHeavyMonitors; |
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1928 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1929 // Is it simple recursive case? |
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1930 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1931 entry->lock()->set_displaced_header(NULL); |
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1932 } else { |
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1933 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1934 } |
0 | 1935 } |
1936 } | |
1937 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1938 } else { | |
1939 istate->set_msg(more_monitors); | |
1940 UPDATE_PC_AND_RETURN(0); // Re-execute | |
1941 } | |
1942 } | |
1943 | |
1944 CASE(_monitorexit): { | |
1945 oop lockee = STACK_OBJECT(-1); | |
1946 CHECK_NULL(lockee); | |
1947 // derefing's lockee ought to provoke implicit null check | |
1948 // find our monitor slot | |
1949 BasicObjectLock* limit = istate->monitor_base(); | |
1950 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1951 while (most_recent != limit ) { | |
1952 if ((most_recent)->obj() == lockee) { | |
1953 BasicLock* lock = most_recent->lock(); | |
1954 markOop header = lock->displaced_header(); | |
1955 most_recent->set_obj(NULL); | |
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1956 if (!lockee->mark()->has_bias_pattern()) { |
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1957 bool call_vm = UseHeavyMonitors; |
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1958 // If it isn't recursive we either must swap old header or call the runtime |
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1959 if (header != NULL || call_vm) { |
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1960 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1961 // restore object for the slow case |
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1962 most_recent->set_obj(lockee); |
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1963 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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1964 } |
0 | 1965 } |
1966 } | |
1967 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1968 } | |
1969 most_recent++; | |
1970 } | |
1971 // Need to throw illegal monitor state exception | |
1972 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
2480 | 1973 ShouldNotReachHere(); |
0 | 1974 } |
1975 | |
1976 /* All of the non-quick opcodes. */ | |
1977 | |
1978 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
1979 * constant pool index in the instruction. | |
1980 */ | |
1981 CASE(_getfield): | |
1982 CASE(_getstatic): | |
1983 { | |
1984 u2 index; | |
1985 ConstantPoolCacheEntry* cache; | |
1986 index = Bytes::get_native_u2(pc+1); | |
1987 | |
1988 // QQQ Need to make this as inlined as possible. Probably need to | |
1989 // split all the bytecode cases out so c++ compiler has a chance | |
1990 // for constant prop to fold everything possible away. | |
1991 | |
1992 cache = cp->entry_at(index); | |
1993 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
1994 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
1995 handle_exception); | |
1996 cache = cp->entry_at(index); | |
1997 } | |
1998 | |
1999 #ifdef VM_JVMTI | |
2000 if (_jvmti_interp_events) { | |
2001 int *count_addr; | |
2002 oop obj; | |
2003 // Check to see if a field modification watch has been set | |
2004 // before we take the time to call into the VM. | |
2005 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
2006 if ( *count_addr > 0 ) { | |
2007 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
2008 obj = (oop)NULL; | |
2009 } else { | |
2010 obj = (oop) STACK_OBJECT(-1); | |
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2011 VERIFY_OOP(obj); |
0 | 2012 } |
2013 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
2014 obj, | |
2015 cache), | |
2016 handle_exception); | |
2017 } | |
2018 } | |
2019 #endif /* VM_JVMTI */ | |
2020 | |
2021 oop obj; | |
2022 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
6926 | 2023 Klass* k = cache->f1_as_klass(); |
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2024 obj = k->java_mirror(); |
0 | 2025 MORE_STACK(1); // Assume single slot push |
2026 } else { | |
2027 obj = (oop) STACK_OBJECT(-1); | |
2028 CHECK_NULL(obj); | |
2029 } | |
2030 | |
2031 // | |
2032 // Now store the result on the stack | |
2033 // | |
2034 TosState tos_type = cache->flag_state(); | |
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2035 int field_offset = cache->f2_as_index(); |
0 | 2036 if (cache->is_volatile()) { |
14452
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|
2037 if (support_IRIW_for_not_multiple_copy_atomic_cpu) { |
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2038 OrderAccess::fence(); |
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|
2039 } |
0 | 2040 if (tos_type == atos) { |
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2041 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
0 | 2042 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
2043 } else if (tos_type == itos) { | |
2044 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
2045 } else if (tos_type == ltos) { | |
2046 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
2047 MORE_STACK(1); | |
2048 } else if (tos_type == btos) { | |
2049 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
2050 } else if (tos_type == ctos) { | |
2051 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
2052 } else if (tos_type == stos) { | |
2053 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
2054 } else if (tos_type == ftos) { | |
2055 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
2056 } else { | |
2057 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
2058 MORE_STACK(1); | |
2059 } | |
2060 } else { | |
2061 if (tos_type == atos) { | |
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2062 VERIFY_OOP(obj->obj_field(field_offset)); |
0 | 2063 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
2064 } else if (tos_type == itos) { | |
2065 SET_STACK_INT(obj->int_field(field_offset), -1); | |
2066 } else if (tos_type == ltos) { | |
2067 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
2068 MORE_STACK(1); | |
2069 } else if (tos_type == btos) { | |
2070 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
2071 } else if (tos_type == ctos) { | |
2072 SET_STACK_INT(obj->char_field(field_offset), -1); | |
2073 } else if (tos_type == stos) { | |
2074 SET_STACK_INT(obj->short_field(field_offset), -1); | |
2075 } else if (tos_type == ftos) { | |
2076 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
2077 } else { | |
2078 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
2079 MORE_STACK(1); | |
2080 } | |
2081 } | |
2082 | |
2083 UPDATE_PC_AND_CONTINUE(3); | |
2084 } | |
2085 | |
2086 CASE(_putfield): | |
2087 CASE(_putstatic): | |
2088 { | |
2089 u2 index = Bytes::get_native_u2(pc+1); | |
2090 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2091 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2092 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
2093 handle_exception); | |
2094 cache = cp->entry_at(index); | |
2095 } | |
2096 | |
2097 #ifdef VM_JVMTI | |
2098 if (_jvmti_interp_events) { | |
2099 int *count_addr; | |
2100 oop obj; | |
2101 // Check to see if a field modification watch has been set | |
2102 // before we take the time to call into the VM. | |
2103 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
2104 if ( *count_addr > 0 ) { | |
2105 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
2106 obj = (oop)NULL; | |
2107 } | |
2108 else { | |
2109 if (cache->is_long() || cache->is_double()) { | |
2110 obj = (oop) STACK_OBJECT(-3); | |
2111 } else { | |
2112 obj = (oop) STACK_OBJECT(-2); | |
2113 } | |
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|
2114 VERIFY_OOP(obj); |
0 | 2115 } |
2116 | |
2117 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
2118 obj, | |
2119 cache, | |
2120 (jvalue *)STACK_SLOT(-1)), | |
2121 handle_exception); | |
2122 } | |
2123 } | |
2124 #endif /* VM_JVMTI */ | |
2125 | |
2126 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2127 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2128 | |
2129 oop obj; | |
2130 int count; | |
2131 TosState tos_type = cache->flag_state(); | |
2132 | |
2133 count = -1; | |
2134 if (tos_type == ltos || tos_type == dtos) { | |
2135 --count; | |
2136 } | |
2137 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
6926 | 2138 Klass* k = cache->f1_as_klass(); |
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|
2139 obj = k->java_mirror(); |
0 | 2140 } else { |
2141 --count; | |
2142 obj = (oop) STACK_OBJECT(count); | |
2143 CHECK_NULL(obj); | |
2144 } | |
2145 | |
2146 // | |
2147 // Now store the result | |
2148 // | |
6266
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|
2149 int field_offset = cache->f2_as_index(); |
0 | 2150 if (cache->is_volatile()) { |
2151 if (tos_type == itos) { | |
2152 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
2153 } else if (tos_type == atos) { | |
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|
2154 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2155 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
2156 } else if (tos_type == btos) { | |
2157 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
2158 } else if (tos_type == ltos) { | |
2159 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
2160 } else if (tos_type == ctos) { | |
2161 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
2162 } else if (tos_type == stos) { | |
2163 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
2164 } else if (tos_type == ftos) { | |
2165 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
2166 } else { | |
2167 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2168 } | |
2169 OrderAccess::storeload(); | |
2170 } else { | |
2171 if (tos_type == itos) { | |
2172 obj->int_field_put(field_offset, STACK_INT(-1)); | |
2173 } else if (tos_type == atos) { | |
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|
2174 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2175 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
2176 } else if (tos_type == btos) { | |
2177 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
2178 } else if (tos_type == ltos) { | |
2179 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
2180 } else if (tos_type == ctos) { | |
2181 obj->char_field_put(field_offset, STACK_INT(-1)); | |
2182 } else if (tos_type == stos) { | |
2183 obj->short_field_put(field_offset, STACK_INT(-1)); | |
2184 } else if (tos_type == ftos) { | |
2185 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
2186 } else { | |
2187 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2188 } | |
2189 } | |
2190 | |
2191 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
2192 } | |
2193 | |
2194 CASE(_new): { | |
2195 u2 index = Bytes::get_Java_u2(pc+1); | |
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|
2196 ConstantPool* constants = istate->method()->constants(); |
0 | 2197 if (!constants->tag_at(index).is_unresolved_klass()) { |
2198 // Make sure klass is initialized and doesn't have a finalizer | |
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2199 Klass* entry = constants->slot_at(index).get_klass(); |
0 | 2200 assert(entry->is_klass(), "Should be resolved klass"); |
6725
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2201 Klass* k_entry = (Klass*) entry; |
da91efe96a93
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2202 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
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|
2203 InstanceKlass* ik = (InstanceKlass*) k_entry; |
0 | 2204 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
2205 size_t obj_size = ik->size_helper(); | |
2206 oop result = NULL; | |
2207 // If the TLAB isn't pre-zeroed then we'll have to do it | |
2208 bool need_zero = !ZeroTLAB; | |
2209 if (UseTLAB) { | |
2210 result = (oop) THREAD->tlab().allocate(obj_size); | |
2211 } | |
14420
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14417
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2212 // Disable non-TLAB-based fast-path, because profiling requires that all |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
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|
2213 // allocations go through InterpreterRuntime::_new() if THREAD->tlab().allocate |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2214 // returns NULL. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2215 #ifndef CC_INTERP_PROFILE |
0 | 2216 if (result == NULL) { |
2217 need_zero = true; | |
2218 // Try allocate in shared eden | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2219 retry: |
0 | 2220 HeapWord* compare_to = *Universe::heap()->top_addr(); |
2221 HeapWord* new_top = compare_to + obj_size; | |
2222 if (new_top <= *Universe::heap()->end_addr()) { | |
2223 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
2224 goto retry; | |
2225 } | |
2226 result = (oop) compare_to; | |
2227 } | |
2228 } | |
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14417
diff
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2229 #endif |
0 | 2230 if (result != NULL) { |
2231 // Initialize object (if nonzero size and need) and then the header | |
2232 if (need_zero ) { | |
2233 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
2234 obj_size -= sizeof(oopDesc) / oopSize; | |
2235 if (obj_size > 0 ) { | |
2236 memset(to_zero, 0, obj_size * HeapWordSize); | |
2237 } | |
2238 } | |
2239 if (UseBiasedLocking) { | |
2240 result->set_mark(ik->prototype_header()); | |
2241 } else { | |
2242 result->set_mark(markOopDesc::prototype()); | |
2243 } | |
167
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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2244 result->set_klass_gap(0); |
0 | 2245 result->set_klass(k_entry); |
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2246 // Must prevent reordering of stores for object initialization |
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2247 // with stores that publish the new object. |
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2248 OrderAccess::storestore(); |
0 | 2249 SET_STACK_OBJECT(result, 0); |
2250 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2251 } | |
2252 } | |
2253 } | |
2254 // Slow case allocation | |
2255 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
2256 handle_exception); | |
14446
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2257 // Must prevent reordering of stores for object initialization |
b4e19a1e459f
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2258 // with stores that publish the new object. |
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|
2259 OrderAccess::storestore(); |
0 | 2260 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
2261 THREAD->set_vm_result(NULL); | |
2262 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2263 } | |
2264 CASE(_anewarray): { | |
2265 u2 index = Bytes::get_Java_u2(pc+1); | |
2266 jint size = STACK_INT(-1); | |
2267 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
2268 handle_exception); | |
14446
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changeset
|
2269 // Must prevent reordering of stores for object initialization |
b4e19a1e459f
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changeset
|
2270 // with stores that publish the new object. |
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changeset
|
2271 OrderAccess::storestore(); |
0 | 2272 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
2273 THREAD->set_vm_result(NULL); | |
2274 UPDATE_PC_AND_CONTINUE(3); | |
2275 } | |
2276 CASE(_multianewarray): { | |
2277 jint dims = *(pc+3); | |
2278 jint size = STACK_INT(-1); | |
2279 // stack grows down, dimensions are up! | |
2280 jint *dimarray = | |
1509 | 2281 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
2282 Interpreter::stackElementWords-1]; | |
0 | 2283 //adjust pointer to start of stack element |
2284 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
2285 handle_exception); | |
14446
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diff
changeset
|
2286 // Must prevent reordering of stores for object initialization |
b4e19a1e459f
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diff
changeset
|
2287 // with stores that publish the new object. |
b4e19a1e459f
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diff
changeset
|
2288 OrderAccess::storestore(); |
0 | 2289 SET_STACK_OBJECT(THREAD->vm_result(), -dims); |
2290 THREAD->set_vm_result(NULL); | |
2291 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
2292 } | |
2293 CASE(_checkcast): | |
2294 if (STACK_OBJECT(-1) != NULL) { | |
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|
2295 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2296 u2 index = Bytes::get_Java_u2(pc+1); |
2297 // Constant pool may have actual klass or unresolved klass. If it is | |
14420
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14417
diff
changeset
|
2298 // unresolved we must resolve it. |
0 | 2299 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
2300 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2301 } | |
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2302 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2303 Klass* objKlass = STACK_OBJECT(-1)->klass(); // ebx |
0 | 2304 // |
2305 // Check for compatibilty. This check must not GC!! | |
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2306 // Seems way more expensive now that we must dispatch. |
0 | 2307 // |
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2308 if (objKlass != klassOf && !objKlass->is_subtype_of(klassOf)) { |
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2309 // Decrement counter at checkcast. |
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2310 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
0 | 2311 ResourceMark rm(THREAD); |
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2312 const char* objName = objKlass->external_name(); |
6983 | 2313 const char* klassName = klassOf->external_name(); |
0 | 2314 char* message = SharedRuntime::generate_class_cast_message( |
2315 objName, klassName); | |
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2316 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message, note_classCheck_trap); |
0 | 2317 } |
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2318 // Profile checkcast with null_seen and receiver. |
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2319 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/false, objKlass); |
0 | 2320 } else { |
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2321 // Profile checkcast with null_seen and receiver. |
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2322 BI_PROFILE_UPDATE_CHECKCAST(/*null_seen=*/true, NULL); |
0 | 2323 } |
2324 UPDATE_PC_AND_CONTINUE(3); | |
2325 | |
2326 CASE(_instanceof): | |
2327 if (STACK_OBJECT(-1) == NULL) { | |
2328 SET_STACK_INT(0, -1); | |
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2329 // Profile instanceof with null_seen and receiver. |
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2330 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/true, NULL); |
0 | 2331 } else { |
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2332 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2333 u2 index = Bytes::get_Java_u2(pc+1); |
2334 // Constant pool may have actual klass or unresolved klass. If it is | |
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2335 // unresolved we must resolve it. |
0 | 2336 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { |
2337 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2338 } | |
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2339 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2340 Klass* objKlass = STACK_OBJECT(-1)->klass(); |
0 | 2341 // |
2342 // Check for compatibilty. This check must not GC!! | |
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2343 // Seems way more expensive now that we must dispatch. |
0 | 2344 // |
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2345 if ( objKlass == klassOf || objKlass->is_subtype_of(klassOf)) { |
0 | 2346 SET_STACK_INT(1, -1); |
2347 } else { | |
2348 SET_STACK_INT(0, -1); | |
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2349 // Decrement counter at checkcast. |
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2350 BI_PROFILE_SUBTYPECHECK_FAILED(objKlass); |
0 | 2351 } |
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2352 // Profile instanceof with null_seen and receiver. |
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2353 BI_PROFILE_UPDATE_INSTANCEOF(/*null_seen=*/false, objKlass); |
0 | 2354 } |
2355 UPDATE_PC_AND_CONTINUE(3); | |
2356 | |
2357 CASE(_ldc_w): | |
2358 CASE(_ldc): | |
2359 { | |
2360 u2 index; | |
2361 bool wide = false; | |
2362 int incr = 2; // frequent case | |
2363 if (opcode == Bytecodes::_ldc) { | |
2364 index = pc[1]; | |
2365 } else { | |
2366 index = Bytes::get_Java_u2(pc+1); | |
2367 incr = 3; | |
2368 wide = true; | |
2369 } | |
2370 | |
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2371 ConstantPool* constants = METHOD->constants(); |
0 | 2372 switch (constants->tag_at(index).value()) { |
2373 case JVM_CONSTANT_Integer: | |
2374 SET_STACK_INT(constants->int_at(index), 0); | |
2375 break; | |
2376 | |
2377 case JVM_CONSTANT_Float: | |
2378 SET_STACK_FLOAT(constants->float_at(index), 0); | |
2379 break; | |
2380 | |
2381 case JVM_CONSTANT_String: | |
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2382 { |
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2383 oop result = constants->resolved_references()->obj_at(index); |
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2384 if (result == NULL) { |
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2385 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
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2386 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
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2387 THREAD->set_vm_result(NULL); |
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2388 } else { |
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2389 VERIFY_OOP(result); |
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2390 SET_STACK_OBJECT(result, 0); |
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2391 } |
0 | 2392 break; |
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2393 } |
0 | 2394 |
2395 case JVM_CONSTANT_Class: | |
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2396 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
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2397 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
0 | 2398 break; |
2399 | |
2400 case JVM_CONSTANT_UnresolvedClass: | |
2401 case JVM_CONSTANT_UnresolvedClassInError: | |
2402 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
2403 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
2404 THREAD->set_vm_result(NULL); | |
2405 break; | |
2406 | |
2407 default: ShouldNotReachHere(); | |
2408 } | |
2409 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
2410 } | |
2411 | |
2412 CASE(_ldc2_w): | |
2413 { | |
2414 u2 index = Bytes::get_Java_u2(pc+1); | |
2415 | |
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2416 ConstantPool* constants = METHOD->constants(); |
0 | 2417 switch (constants->tag_at(index).value()) { |
2418 | |
2419 case JVM_CONSTANT_Long: | |
2420 SET_STACK_LONG(constants->long_at(index), 1); | |
2421 break; | |
2422 | |
2423 case JVM_CONSTANT_Double: | |
2424 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
2425 break; | |
2426 default: ShouldNotReachHere(); | |
2427 } | |
2428 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
2429 } | |
2430 | |
2480 | 2431 CASE(_fast_aldc_w): |
2432 CASE(_fast_aldc): { | |
2433 u2 index; | |
2434 int incr; | |
2435 if (opcode == Bytecodes::_fast_aldc) { | |
2436 index = pc[1]; | |
2437 incr = 2; | |
2438 } else { | |
2439 index = Bytes::get_native_u2(pc+1); | |
2440 incr = 3; | |
2441 } | |
2442 | |
2443 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
2444 // This kind of CP cache entry does not need to match the flags byte, because | |
2445 // there is a 1-1 relation between bytecode type and CP entry type. | |
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2446 ConstantPool* constants = METHOD->constants(); |
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2447 oop result = constants->resolved_references()->obj_at(index); |
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2448 if (result == NULL) { |
2480 | 2449 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
2450 handle_exception); | |
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2451 result = THREAD->vm_result(); |
2480 | 2452 } |
2453 | |
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2454 VERIFY_OOP(result); |
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2455 SET_STACK_OBJECT(result, 0); |
2480 | 2456 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
2457 } | |
2458 | |
2459 CASE(_invokedynamic): { | |
6926 | 2460 |
2480 | 2461 if (!EnableInvokeDynamic) { |
2462 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
2463 // The verifier will stop it. However, if we get past the verifier, | |
2464 // this will stop the thread in a reasonable way, without crashing the JVM. | |
2465 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
2466 handle_exception); | |
2467 ShouldNotReachHere(); | |
2468 } | |
2469 | |
6926 | 2470 u4 index = Bytes::get_native_u4(pc+1); |
2471 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
2480 | 2472 |
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2473 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
2480 | 2474 // This kind of CP cache entry does not need to match the flags byte, because |
2475 // there is a 1-1 relation between bytecode type and CP entry type. | |
6926 | 2476 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
2480 | 2477 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
2478 handle_exception); | |
6926 | 2479 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
2480 } | |
2481 | |
2482 Method* method = cache->f1_as_method(); | |
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2483 if (VerifyOops) method->verify(); |
6926 | 2484 |
2485 if (cache->has_appendix()) { | |
2486 ConstantPool* constants = METHOD->constants(); | |
2487 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2488 MORE_STACK(1); | |
2489 } | |
2490 | |
2491 istate->set_msg(call_method); | |
2492 istate->set_callee(method); | |
2493 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2494 istate->set_bcp_advance(5); | |
2495 | |
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2496 // Invokedynamic has got a call counter, just like an invokestatic -> increment! |
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2497 BI_PROFILE_UPDATE_CALL(); |
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2498 |
6926 | 2499 UPDATE_PC_AND_RETURN(0); // I'll be back... |
2500 } | |
2501 | |
2502 CASE(_invokehandle): { | |
2503 | |
2504 if (!EnableInvokeDynamic) { | |
2505 ShouldNotReachHere(); | |
2480 | 2506 } |
2507 | |
6926 | 2508 u2 index = Bytes::get_native_u2(pc+1); |
2509 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2510 | |
2511 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
2512 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
2513 handle_exception); | |
2514 cache = cp->entry_at(index); | |
2515 } | |
2516 | |
2517 Method* method = cache->f1_as_method(); | |
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2518 if (VerifyOops) method->verify(); |
6926 | 2519 |
2520 if (cache->has_appendix()) { | |
2521 ConstantPool* constants = METHOD->constants(); | |
2522 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2523 MORE_STACK(1); | |
2524 } | |
2525 | |
2526 istate->set_msg(call_method); | |
2527 istate->set_callee(method); | |
2528 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2529 istate->set_bcp_advance(3); | |
2480 | 2530 |
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2531 // Invokehandle has got a call counter, just like a final call -> increment! |
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2532 BI_PROFILE_UPDATE_FINALCALL(); |
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2533 |
2480 | 2534 UPDATE_PC_AND_RETURN(0); // I'll be back... |
2535 } | |
2536 | |
0 | 2537 CASE(_invokeinterface): { |
2538 u2 index = Bytes::get_native_u2(pc+1); | |
2539 | |
2540 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2541 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2542 | |
2543 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2544 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2545 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2546 handle_exception); | |
2547 cache = cp->entry_at(index); | |
2548 } | |
2549 | |
2550 istate->set_msg(call_method); | |
2551 | |
2552 // Special case of invokeinterface called for virtual method of | |
2553 // java.lang.Object. See cpCacheOop.cpp for details. | |
2554 // This code isn't produced by javac, but could be produced by | |
2555 // another compliant java compiler. | |
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2556 if (cache->is_forced_virtual()) { |
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2557 Method* callee; |
0 | 2558 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
2559 if (cache->is_vfinal()) { | |
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2560 callee = cache->f2_as_vfinal_method(); |
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2561 // Profile 'special case of invokeinterface' final call. |
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|
2562 BI_PROFILE_UPDATE_FINALCALL(); |
0 | 2563 } else { |
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2564 // Get receiver. |
0 | 2565 int parms = cache->parameter_size(); |
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2566 // Same comments as invokevirtual apply here. |
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2567 oop rcvr = STACK_OBJECT(-parms); |
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2568 VERIFY_OOP(rcvr); |
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2569 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
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2570 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
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2571 // Profile 'special case of invokeinterface' virtual call. |
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|
2572 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
0 | 2573 } |
2574 istate->set_callee(callee); | |
2575 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2576 #ifdef VM_JVMTI | |
2577 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2578 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2579 } | |
2580 #endif /* VM_JVMTI */ | |
2581 istate->set_bcp_advance(5); | |
2582 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2583 } | |
2584 | |
2585 // this could definitely be cleaned up QQQ | |
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2586 Method* callee; |
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2587 Klass* iclass = cache->f1_as_klass(); |
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2588 // InstanceKlass* interface = (InstanceKlass*) iclass; |
0 | 2589 // get receiver |
2590 int parms = cache->parameter_size(); | |
2591 oop rcvr = STACK_OBJECT(-parms); | |
2592 CHECK_NULL(rcvr); | |
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2593 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
0 | 2594 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
2595 int i; | |
2596 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
2597 if (ki->interface_klass() == iclass) break; | |
2598 } | |
2599 // If the interface isn't found, this class doesn't implement this | |
2600 // interface. The link resolver checks this but only for the first | |
2601 // time this interface is called. | |
2602 if (i == int2->itable_length()) { | |
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2603 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), "", note_no_trap); |
0 | 2604 } |
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2605 int mindex = cache->f2_as_index(); |
0 | 2606 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
2607 callee = im[mindex].method(); | |
2608 if (callee == NULL) { | |
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2609 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), "", note_no_trap); |
0 | 2610 } |
2611 | |
14420
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|
2612 // Profile virtual call. |
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|
2613 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
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|
2614 |
0 | 2615 istate->set_callee(callee); |
2616 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2617 #ifdef VM_JVMTI | |
2618 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2619 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2620 } | |
2621 #endif /* VM_JVMTI */ | |
2622 istate->set_bcp_advance(5); | |
2623 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2624 } | |
2625 | |
2626 CASE(_invokevirtual): | |
2627 CASE(_invokespecial): | |
2628 CASE(_invokestatic): { | |
2629 u2 index = Bytes::get_native_u2(pc+1); | |
2630 | |
2631 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2632 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2633 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2634 | |
2635 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2636 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2637 handle_exception); | |
2638 cache = cp->entry_at(index); | |
2639 } | |
2640 | |
2641 istate->set_msg(call_method); | |
2642 { | |
6725
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|
2643 Method* callee; |
0 | 2644 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
2645 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
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|
2646 if (cache->is_vfinal()) { |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2647 callee = cache->f2_as_vfinal_method(); |
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|
2648 // Profile final call. |
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|
2649 BI_PROFILE_UPDATE_FINALCALL(); |
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|
2650 } else { |
0 | 2651 // get receiver |
2652 int parms = cache->parameter_size(); | |
2653 // this works but needs a resourcemark and seems to create a vtable on every call: | |
6725
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2654 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
0 | 2655 // |
2656 // this fails with an assert | |
6725
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2657 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
0 | 2658 // but this works |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2659 oop rcvr = STACK_OBJECT(-parms); |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2660 VERIFY_OOP(rcvr); |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2661 InstanceKlass* rcvrKlass = (InstanceKlass*)rcvr->klass(); |
0 | 2662 /* |
2663 Executing this code in java.lang.String: | |
2664 public String(char value[]) { | |
2665 this.count = value.length; | |
2666 this.value = (char[])value.clone(); | |
2667 } | |
2668 | |
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
2669 a find on rcvr->klass() reports: |
0 | 2670 {type array char}{type array class} |
2671 - klass: {other class} | |
2672 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2673 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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|
2674 because rcvr->klass()->oop_is_instance() == 0 |
0 | 2675 However it seems to have a vtable in the right location. Huh? |
2676 | |
2677 */ | |
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
2678 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
14420
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|
2679 // Profile virtual call. |
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changeset
|
2680 BI_PROFILE_UPDATE_VIRTUALCALL(rcvr->klass()); |
0 | 2681 } |
2682 } else { | |
2683 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
2684 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
2685 } | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2686 callee = cache->f1_as_method(); |
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2687 |
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2688 // Profile call. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2689 BI_PROFILE_UPDATE_CALL(); |
0 | 2690 } |
2691 | |
2692 istate->set_callee(callee); | |
2693 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2694 #ifdef VM_JVMTI | |
2695 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2696 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2697 } | |
2698 #endif /* VM_JVMTI */ | |
2699 istate->set_bcp_advance(3); | |
2700 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2701 } | |
2702 } | |
2703 | |
2704 /* Allocate memory for a new java object. */ | |
2705 | |
2706 CASE(_newarray): { | |
2707 BasicType atype = (BasicType) *(pc+1); | |
2708 jint size = STACK_INT(-1); | |
2709 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
2710 handle_exception); | |
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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parents:
14433
diff
changeset
|
2711 // Must prevent reordering of stores for object initialization |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
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14433
diff
changeset
|
2712 // 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
|
2713 OrderAccess::storestore(); |
0 | 2714 SET_STACK_OBJECT(THREAD->vm_result(), -1); |
2715 THREAD->set_vm_result(NULL); | |
2716 | |
2717 UPDATE_PC_AND_CONTINUE(2); | |
2718 } | |
2719 | |
2720 /* Throw an exception. */ | |
2721 | |
2722 CASE(_athrow): { | |
2723 oop except_oop = STACK_OBJECT(-1); | |
2724 CHECK_NULL(except_oop); | |
2725 // set pending_exception so we use common code | |
2726 THREAD->set_pending_exception(except_oop, NULL, 0); | |
2727 goto handle_exception; | |
2728 } | |
2729 | |
2730 /* goto and jsr. They are exactly the same except jsr pushes | |
2731 * the address of the next instruction first. | |
2732 */ | |
2733 | |
2734 CASE(_jsr): { | |
2735 /* push bytecode index on stack */ | |
2736 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
2737 MORE_STACK(1); | |
2738 /* FALL THROUGH */ | |
2739 } | |
2740 | |
2741 CASE(_goto): | |
2742 { | |
2743 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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|
2744 // Profile jump. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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parents:
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diff
changeset
|
2745 BI_PROFILE_UPDATE_JUMP(); |
0 | 2746 address branch_pc = pc; |
2747 UPDATE_PC(offset); | |
2748 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2749 CONTINUE; | |
2750 } | |
2751 | |
2752 CASE(_jsr_w): { | |
2753 /* push return address on the stack */ | |
2754 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
2755 MORE_STACK(1); | |
2756 /* FALL THROUGH */ | |
2757 } | |
2758 | |
2759 CASE(_goto_w): | |
2760 { | |
2761 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2762 // Profile jump. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2763 BI_PROFILE_UPDATE_JUMP(); |
0 | 2764 address branch_pc = pc; |
2765 UPDATE_PC(offset); | |
2766 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2767 CONTINUE; | |
2768 } | |
2769 | |
2770 /* return from a jsr or jsr_w */ | |
2771 | |
2772 CASE(_ret): { | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
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|
2773 // Profile ret. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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diff
changeset
|
2774 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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14417
diff
changeset
|
2775 // Now, update the pc. |
0 | 2776 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); |
2777 UPDATE_PC_AND_CONTINUE(0); | |
2778 } | |
2779 | |
2780 /* debugger breakpoint */ | |
2781 | |
2782 CASE(_breakpoint): { | |
2783 Bytecodes::Code original_bytecode; | |
2784 DECACHE_STATE(); | |
2785 SET_LAST_JAVA_FRAME(); | |
2786 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
2787 METHOD, pc); | |
2788 RESET_LAST_JAVA_FRAME(); | |
2789 CACHE_STATE(); | |
2790 if (THREAD->has_pending_exception()) goto handle_exception; | |
2791 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
2792 handle_exception); | |
2793 | |
2794 opcode = (jubyte)original_bytecode; | |
2795 goto opcode_switch; | |
2796 } | |
2797 | |
2798 DEFAULT: | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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1347
diff
changeset
|
2799 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
f03d0a26bf83
6888954: argument formatting for assert() and friends
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diff
changeset
|
2800 Bytecodes::name((Bytecodes::Code)opcode))); |
0 | 2801 goto finish; |
2802 | |
2803 } /* switch(opc) */ | |
2804 | |
2805 | |
2806 #ifdef USELABELS | |
2807 check_for_exception: | |
2808 #endif | |
2809 { | |
2810 if (!THREAD->has_pending_exception()) { | |
2811 CONTINUE; | |
2812 } | |
2813 /* We will be gcsafe soon, so flush our state. */ | |
2814 DECACHE_PC(); | |
2815 goto handle_exception; | |
2816 } | |
2817 do_continue: ; | |
2818 | |
2819 } /* while (1) interpreter loop */ | |
2820 | |
2821 | |
2822 // An exception exists in the thread state see whether this activation can handle it | |
2823 handle_exception: { | |
2824 | |
2825 HandleMarkCleaner __hmc(THREAD); | |
2826 Handle except_oop(THREAD, THREAD->pending_exception()); | |
2827 // Prevent any subsequent HandleMarkCleaner in the VM | |
2828 // from freeing the except_oop handle. | |
2829 HandleMark __hm(THREAD); | |
2830 | |
2831 THREAD->clear_pending_exception(); | |
2832 assert(except_oop(), "No exception to process"); | |
2833 intptr_t continuation_bci; | |
2834 // expression stack is emptied | |
1509 | 2835 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
0 | 2836 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
2837 handle_exception); | |
2838 | |
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|
2839 except_oop = THREAD->vm_result(); |
0 | 2840 THREAD->set_vm_result(NULL); |
2841 if (continuation_bci >= 0) { | |
2842 // Place exception on top of stack | |
2843 SET_STACK_OBJECT(except_oop(), 0); | |
2844 MORE_STACK(1); | |
2845 pc = METHOD->code_base() + continuation_bci; | |
2846 if (TraceExceptions) { | |
2847 ttyLocker ttyl; | |
2848 ResourceMark rm; | |
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
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diff
changeset
|
2849 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
0 | 2850 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
2851 tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
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14411
diff
changeset
|
2852 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2853 continuation_bci, THREAD); |
2854 } | |
2855 // for AbortVMOnException flag | |
2856 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
14420
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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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|
2857 |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14417
diff
changeset
|
2858 // Update profiling data. |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
2859 BI_PROFILE_ALIGN_TO_CURRENT_BCI(); |
0 | 2860 goto run; |
2861 } | |
2862 if (TraceExceptions) { | |
2863 ttyLocker ttyl; | |
2864 ResourceMark rm; | |
14433
018b357638aa
8028514: PPC64: Fix C++ Interpreter after '7195622: CheckUnhandledOops has limited usefulness now'
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14420
diff
changeset
|
2865 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), (void*)except_oop()); |
0 | 2866 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); |
2867 tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
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14411
diff
changeset
|
2868 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2869 THREAD); |
2870 } | |
2871 // for AbortVMOnException flag | |
2872 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
2873 // No handler in this activation, unwind and try again | |
2874 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
2875 goto handle_return; | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2876 } // handle_exception: |
0 | 2877 |
2878 // Return from an interpreter invocation with the result of the interpretation | |
2879 // on the top of the Java Stack (or a pending exception) | |
2880 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2881 handle_Pop_Frame: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2882 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2883 // 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
|
2884 // 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
|
2885 // 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
|
2886 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2887 istate->set_msg(popping_frame); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2888 // 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
|
2889 // 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
|
2890 THREAD->clr_pop_frame_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2891 // 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
|
2892 THREAD->set_pop_frame_in_process(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2893 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2894 goto handle_return; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2895 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2896 } // handle_Pop_Frame |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2897 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2898 // 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
|
2899 // 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
|
2900 handle_Early_Return: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2901 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2902 istate->set_msg(early_return); |
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 // Clear expression stack. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2905 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2906 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2907 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
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 // Push the value to be returned. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2910 switch (istate->method()->result_type()) { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2911 case T_BOOLEAN: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2912 case T_SHORT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2913 case T_BYTE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2914 case T_CHAR: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2915 case T_INT: |
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2916 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
|
2917 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2918 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2919 case T_LONG: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2920 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
|
2921 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2922 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2923 case T_FLOAT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2924 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
|
2925 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2926 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2927 case T_DOUBLE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2928 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
|
2929 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2930 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2931 case T_ARRAY: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2932 case T_OBJECT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2933 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
|
2934 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2935 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2936 } |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2937 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2938 ts->clr_earlyret_value(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2939 ts->set_earlyret_oop(NULL); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2940 ts->clr_earlyret_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2941 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2942 // Fall through to handle_return. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2943 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2944 } // handle_Early_Return |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2945 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2946 handle_return: { |
14446
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2947 // 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
|
2948 // 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
|
2949 // 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
|
2950 // can be observed to change. |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2951 OrderAccess::storestore(); |
b4e19a1e459f
8029957: PPC64 (part 213): cppInterpreter: memory ordering for object initialization
goetz
parents:
14433
diff
changeset
|
2952 |
0 | 2953 DECACHE_STATE(); |
2954 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2955 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
|
2956 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
0 | 2957 Handle original_exception(THREAD, THREAD->pending_exception()); |
2958 Handle illegal_state_oop(THREAD, NULL); | |
2959 | |
2960 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
2961 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
2962 // isn't really allocated yet and so doesn't become live until later and | |
2963 // in unpredicatable places. Instead we must protect the places where we enter the | |
2964 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
2965 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
2966 // unfortunately isn't possible. | |
2967 | |
2968 THREAD->clear_pending_exception(); | |
2969 | |
2970 // | |
2971 // As far as we are concerned we have returned. If we have a pending exception | |
2972 // that will be returned as this invocation's result. However if we get any | |
2973 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
2974 // will be our final result (i.e. monitor exception trumps a pending exception). | |
2975 // | |
2976 | |
2977 // If we never locked the method (or really passed the point where we would have), | |
2978 // there is no need to unlock it (or look for other monitors), since that | |
2979 // could not have happened. | |
2980 | |
2981 if (THREAD->do_not_unlock()) { | |
2982 | |
2983 // Never locked, reset the flag now because obviously any caller must | |
2984 // have passed their point of locking for us to have gotten here. | |
2985 | |
2986 THREAD->clr_do_not_unlock(); | |
2987 } else { | |
2988 // At this point we consider that we have returned. We now check that the | |
2989 // locks were properly block structured. If we find that they were not | |
2990 // used properly we will return with an illegal monitor exception. | |
2991 // The exception is checked by the caller not the callee since this | |
2992 // checking is considered to be part of the invocation and therefore | |
2993 // in the callers scope (JVM spec 8.13). | |
2994 // | |
2995 // Another weird thing to watch for is if the method was locked | |
2996 // recursively and then not exited properly. This means we must | |
2997 // examine all the entries in reverse time(and stack) order and | |
2998 // unlock as we find them. If we find the method monitor before | |
2999 // we are at the initial entry then we should throw an exception. | |
3000 // It is not clear the template based interpreter does this | |
3001 // correctly | |
3002 | |
3003 BasicObjectLock* base = istate->monitor_base(); | |
3004 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
3005 bool method_unlock_needed = METHOD->is_synchronized(); | |
3006 // We know the initial monitor was used for the method don't check that | |
3007 // slot in the loop | |
3008 if (method_unlock_needed) base--; | |
3009 | |
3010 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
3011 while (end < base) { | |
3012 oop lockee = end->obj(); | |
3013 if (lockee != NULL) { | |
3014 BasicLock* lock = end->lock(); | |
3015 markOop header = lock->displaced_header(); | |
3016 end->set_obj(NULL); | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3017 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3018 if (!lockee->mark()->has_bias_pattern()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3019 // 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
|
3020 if (header != NULL) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3021 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
|
3022 // restore object for the slow case |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3023 end->set_obj(lockee); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3024 { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3025 // Prevent any HandleMarkCleaner from freeing our live handles |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3026 HandleMark __hm(THREAD); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3027 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3028 } |
0 | 3029 } |
3030 } | |
3031 } | |
3032 // One error is plenty | |
3033 if (illegal_state_oop() == NULL && !suppress_error) { | |
3034 { | |
3035 // Prevent any HandleMarkCleaner from freeing our live handles | |
3036 HandleMark __hm(THREAD); | |
3037 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
3038 } | |
3039 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
3040 illegal_state_oop = THREAD->pending_exception(); | |
3041 THREAD->clear_pending_exception(); | |
3042 } | |
3043 } | |
3044 end++; | |
3045 } | |
3046 // Unlock the method if needed | |
3047 if (method_unlock_needed) { | |
3048 if (base->obj() == NULL) { | |
3049 // The method is already unlocked this is not good. | |
3050 if (illegal_state_oop() == NULL && !suppress_error) { | |
3051 { | |
3052 // Prevent any HandleMarkCleaner from freeing our live handles | |
3053 HandleMark __hm(THREAD); | |
3054 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
3055 } | |
3056 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
3057 illegal_state_oop = THREAD->pending_exception(); | |
3058 THREAD->clear_pending_exception(); | |
3059 } | |
3060 } else { | |
3061 // | |
3062 // The initial monitor is always used for the method | |
3063 // However if that slot is no longer the oop for the method it was unlocked | |
3064 // and reused by something that wasn't unlocked! | |
3065 // | |
3066 // deopt can come in with rcvr dead because c2 knows | |
3067 // its value is preserved in the monitor. So we can't use locals[0] at all | |
3068 // and must use first monitor slot. | |
3069 // | |
3070 oop rcvr = base->obj(); | |
3071 if (rcvr == NULL) { | |
3072 if (!suppress_error) { | |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14417
diff
changeset
|
3073 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), "", note_nullCheck_trap); |
0 | 3074 illegal_state_oop = THREAD->pending_exception(); |
3075 THREAD->clear_pending_exception(); | |
3076 } | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3077 } else if (UseHeavyMonitors) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3078 { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3079 // Prevent any HandleMarkCleaner from freeing our live handles. |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3080 HandleMark __hm(THREAD); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3081 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3082 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3083 if (THREAD->has_pending_exception()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3084 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
|
3085 THREAD->clear_pending_exception(); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3086 } |
0 | 3087 } else { |
3088 BasicLock* lock = base->lock(); | |
3089 markOop header = lock->displaced_header(); | |
3090 base->set_obj(NULL); | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3091 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3092 if (!rcvr->mark()->has_bias_pattern()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3093 base->set_obj(NULL); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3094 // 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
|
3095 if (header != NULL) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3096 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
|
3097 // restore object for the slow case |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
3098 base->set_obj(rcvr); |
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3099 { |
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3100 // Prevent any HandleMarkCleaner from freeing our live handles |
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3101 HandleMark __hm(THREAD); |
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3102 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
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3103 } |
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3104 if (THREAD->has_pending_exception()) { |
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3105 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
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3106 THREAD->clear_pending_exception(); |
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3107 } |
0 | 3108 } |
3109 } | |
3110 } | |
3111 } | |
3112 } | |
3113 } | |
3114 } | |
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3115 // Clear the do_not_unlock flag now. |
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3116 THREAD->clr_do_not_unlock(); |
0 | 3117 |
3118 // | |
3119 // Notify jvmti/jvmdi | |
3120 // | |
3121 // NOTE: we do not notify a method_exit if we have a pending exception, | |
3122 // including an exception we generate for unlocking checks. In the former | |
3123 // case, JVMDI has already been notified by our call for the exception handler | |
3124 // and in both cases as far as JVMDI is concerned we have already returned. | |
3125 // If we notify it again JVMDI will be all confused about how many frames | |
3126 // are still on the stack (4340444). | |
3127 // | |
3128 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
3129 // method_exit events whenever we leave an activation unless it was done | |
3130 // for popframe. This is nothing like jvmdi. However we are passing the | |
3131 // tests at the moment (apparently because they are jvmdi based) so rather | |
3132 // than change this code and possibly fail tests we will leave it alone | |
3133 // (with this note) in anticipation of changing the vm and the tests | |
3134 // simultaneously. | |
3135 | |
3136 | |
3137 // | |
3138 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
3139 | |
3140 | |
3141 | |
3142 #ifdef VM_JVMTI | |
3143 if (_jvmti_interp_events) { | |
3144 // Whenever JVMTI puts a thread in interp_only_mode, method | |
3145 // entry/exit events are sent for that thread to track stack depth. | |
3146 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
3147 { | |
3148 // Prevent any HandleMarkCleaner from freeing our live handles | |
3149 HandleMark __hm(THREAD); | |
3150 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
3151 } | |
3152 } | |
3153 } | |
3154 #endif /* VM_JVMTI */ | |
3155 | |
3156 // | |
3157 // See if we are returning any exception | |
3158 // A pending exception that was pending prior to a possible popping frame | |
3159 // overrides the popping frame. | |
3160 // | |
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3161 assert(!suppress_error || (suppress_error && illegal_state_oop() == NULL), "Error was not suppressed"); |
0 | 3162 if (illegal_state_oop() != NULL || original_exception() != NULL) { |
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3163 // Inform the frame manager we have no result. |
0 | 3164 istate->set_msg(throwing_exception); |
3165 if (illegal_state_oop() != NULL) | |
3166 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
3167 else | |
3168 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
3169 UPDATE_PC_AND_RETURN(0); | |
3170 } | |
3171 | |
3172 if (istate->msg() == popping_frame) { | |
3173 // Make it simpler on the assembly code and set the message for the frame pop. | |
3174 // returns | |
3175 if (istate->prev() == NULL) { | |
3176 // We must be returning to a deoptimized frame (because popframe only happens between | |
3177 // two interpreted frames). We need to save the current arguments in C heap so that | |
3178 // the deoptimized frame when it restarts can copy the arguments to its expression | |
3179 // stack and re-execute the call. We also have to notify deoptimization that this | |
605 | 3180 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
0 | 3181 // java expression stack. Yuck. |
3182 // | |
3183 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
3184 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
3185 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
3186 } | |
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3187 } else { |
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3188 istate->set_msg(return_from_method); |
0 | 3189 } |
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3190 |
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3191 // Normal return |
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3192 // Advance the pc and return to frame manager |
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3193 UPDATE_PC_AND_RETURN(1); |
0 | 3194 } /* handle_return: */ |
3195 | |
3196 // This is really a fatal error return | |
3197 | |
3198 finish: | |
3199 DECACHE_TOS(); | |
3200 DECACHE_PC(); | |
3201 | |
3202 return; | |
3203 } | |
3204 | |
3205 /* | |
3206 * All the code following this point is only produced once and is not present | |
3207 * in the JVMTI version of the interpreter | |
3208 */ | |
3209 | |
3210 #ifndef VM_JVMTI | |
3211 | |
3212 // This constructor should only be used to contruct the object to signal | |
3213 // interpreter initialization. All other instances should be created by | |
3214 // the frame manager. | |
3215 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
3216 if (msg != initialize) ShouldNotReachHere(); | |
3217 _msg = msg; | |
3218 _self_link = this; | |
3219 _prev_link = NULL; | |
3220 } | |
3221 | |
3222 // Inline static functions for Java Stack and Local manipulation | |
3223 | |
3224 // The implementations are platform dependent. We have to worry about alignment | |
3225 // issues on some machines which can change on the same platform depending on | |
3226 // whether it is an LP64 machine also. | |
3227 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
3228 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
3229 } | |
3230 | |
3231 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
3232 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
3233 } | |
3234 | |
3235 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
3236 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
3237 } | |
3238 | |
3239 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
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3240 return cast_to_oop(tos [Interpreter::expr_index_at(-offset)]); |
0 | 3241 } |
3242 | |
3243 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
3244 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
3245 } | |
3246 | |
3247 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
3248 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
3249 } | |
3250 | |
3251 // only used for value types | |
3252 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
3253 int offset) { | |
3254 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3255 } | |
3256 | |
3257 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
3258 int offset) { | |
3259 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3260 } | |
3261 | |
3262 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
3263 int offset) { | |
3264 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3265 } | |
3266 | |
3267 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
3268 int offset) { | |
3269 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3270 } | |
3271 | |
3272 // needs to be platform dep for the 32 bit platforms. | |
3273 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
3274 int offset) { | |
3275 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
3276 } | |
3277 | |
3278 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
3279 address addr, int offset) { | |
3280 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
3281 ((VMJavaVal64*)addr)->d); | |
3282 } | |
3283 | |
3284 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
3285 int offset) { | |
3286 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3287 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
3288 } | |
3289 | |
3290 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
3291 address addr, int offset) { | |
3292 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3293 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
3294 ((VMJavaVal64*)addr)->l; | |
3295 } | |
3296 | |
3297 // Locals | |
3298 | |
3299 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
3300 return (address)locals[Interpreter::local_index_at(-offset)]; | |
3301 } | |
3302 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
3303 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
3304 } | |
3305 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
3306 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
3307 } | |
3308 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
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3309 return cast_to_oop(locals[Interpreter::local_index_at(-offset)]); |
0 | 3310 } |
3311 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
3312 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
3313 } | |
3314 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
3315 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
3316 } | |
3317 | |
3318 // Returns the address of locals value. | |
3319 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
3320 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3321 } | |
3322 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
3323 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3324 } | |
3325 | |
3326 // Used for local value or returnAddress | |
3327 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
3328 address value, int offset) { | |
3329 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3330 } | |
3331 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
3332 jint value, int offset) { | |
3333 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3334 } | |
3335 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
3336 jfloat value, int offset) { | |
3337 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3338 } | |
3339 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
3340 oop value, int offset) { | |
3341 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3342 } | |
3343 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
3344 jdouble value, int offset) { | |
3345 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
3346 } | |
3347 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
3348 jlong value, int offset) { | |
3349 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
3350 } | |
3351 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
3352 address addr, int offset) { | |
3353 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
3354 } | |
3355 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
3356 address addr, int offset) { | |
3357 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
3358 } | |
3359 | |
3360 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
3361 intptr_t* locals, int locals_offset) { | |
3362 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
3363 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
3364 } | |
3365 | |
3366 | |
3367 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
3368 int to_offset) { | |
3369 tos[Interpreter::expr_index_at(-to_offset)] = | |
3370 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
3371 } | |
3372 | |
3373 void BytecodeInterpreter::dup(intptr_t *tos) { | |
3374 copy_stack_slot(tos, -1, 0); | |
3375 } | |
3376 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
3377 copy_stack_slot(tos, -2, 0); | |
3378 copy_stack_slot(tos, -1, 1); | |
3379 } | |
3380 | |
3381 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
3382 /* insert top word two down */ | |
3383 copy_stack_slot(tos, -1, 0); | |
3384 copy_stack_slot(tos, -2, -1); | |
3385 copy_stack_slot(tos, 0, -2); | |
3386 } | |
3387 | |
3388 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
3389 /* insert top word three down */ | |
3390 copy_stack_slot(tos, -1, 0); | |
3391 copy_stack_slot(tos, -2, -1); | |
3392 copy_stack_slot(tos, -3, -2); | |
3393 copy_stack_slot(tos, 0, -3); | |
3394 } | |
3395 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
3396 /* insert top 2 slots three down */ | |
3397 copy_stack_slot(tos, -1, 1); | |
3398 copy_stack_slot(tos, -2, 0); | |
3399 copy_stack_slot(tos, -3, -1); | |
3400 copy_stack_slot(tos, 1, -2); | |
3401 copy_stack_slot(tos, 0, -3); | |
3402 } | |
3403 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
3404 /* insert top 2 slots four down */ | |
3405 copy_stack_slot(tos, -1, 1); | |
3406 copy_stack_slot(tos, -2, 0); | |
3407 copy_stack_slot(tos, -3, -1); | |
3408 copy_stack_slot(tos, -4, -2); | |
3409 copy_stack_slot(tos, 1, -3); | |
3410 copy_stack_slot(tos, 0, -4); | |
3411 } | |
3412 | |
3413 | |
3414 void BytecodeInterpreter::swap(intptr_t *tos) { | |
3415 // swap top two elements | |
3416 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
3417 // Copy -2 entry to -1 | |
3418 copy_stack_slot(tos, -2, -1); | |
3419 // Store saved -1 entry into -2 | |
3420 tos[Interpreter::expr_index_at(2)] = val; | |
3421 } | |
3422 // -------------------------------------------------------------------------------- | |
3423 // Non-product code | |
3424 #ifndef PRODUCT | |
3425 | |
3426 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
3427 switch (msg) { | |
3428 case BytecodeInterpreter::no_request: return("no_request"); | |
3429 case BytecodeInterpreter::initialize: return("initialize"); | |
3430 // status message to C++ interpreter | |
3431 case BytecodeInterpreter::method_entry: return("method_entry"); | |
3432 case BytecodeInterpreter::method_resume: return("method_resume"); | |
3433 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
3434 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
3435 // requests to frame manager from C++ interpreter | |
3436 case BytecodeInterpreter::call_method: return("call_method"); | |
3437 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
3438 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
3439 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
3440 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
3441 case BytecodeInterpreter::do_osr: return("do_osr"); | |
3442 // deopt | |
3443 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
3444 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
3445 default: return("BAD MSG"); | |
3446 } | |
3447 } | |
3448 void | |
3449 BytecodeInterpreter::print() { | |
3450 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
3451 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
3452 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
3453 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
3454 { | |
3455 ResourceMark rm; | |
3456 char *method_name = _method->name_and_sig_as_C_string(); | |
3457 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
3458 } | |
3459 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
3460 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
3461 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
3462 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
3463 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
3464 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
3465 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
3466 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
3467 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
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3468 tty->print_cr("native_mirror: " INTPTR_FORMAT, (void*) this->_oop_temp); |
0 | 3469 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); |
3470 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
3471 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
3472 #ifdef SPARC | |
3473 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
3474 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
3475 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
3476 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
3477 #endif | |
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Doug Simon <doug.simon@oracle.com>
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3478 #if !defined(ZERO) |
0 | 3479 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
7994 | 3480 #endif // !ZERO |
0 | 3481 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
3482 } | |
3483 | |
3484 extern "C" { | |
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3485 void PI(uintptr_t arg) { |
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3486 ((BytecodeInterpreter*)arg)->print(); |
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3487 } |
0 | 3488 } |
3489 #endif // PRODUCT | |
3490 | |
3491 #endif // JVMTI | |
3492 #endif // CC_INTERP |