Mercurial > hg > graal-jvmci-8
annotate src/share/vm/interpreter/bytecodeInterpreter.cpp @ 14417:f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
Summary: Call OSR migration with last java frame.
Reviewed-by: kvn
author | goetz |
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date | Fri, 13 Sep 2013 22:50:47 +0200 |
parents | bdd155477289 |
children | abe03600372a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, 2012, 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" | |
31 #include "interpreter/interpreter.hpp" | |
32 #include "interpreter/interpreterRuntime.hpp" | |
33 #include "memory/resourceArea.hpp" | |
10233 | 34 #include "oops/methodCounters.hpp" |
1972 | 35 #include "oops/objArrayKlass.hpp" |
36 #include "oops/oop.inline.hpp" | |
37 #include "prims/jvmtiExport.hpp" | |
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38 #include "prims/jvmtiThreadState.hpp" |
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39 #include "runtime/biasedLocking.hpp" |
1972 | 40 #include "runtime/frame.inline.hpp" |
41 #include "runtime/handles.inline.hpp" | |
42 #include "runtime/interfaceSupport.hpp" | |
43 #include "runtime/sharedRuntime.hpp" | |
44 #include "runtime/threadCritical.hpp" | |
45 #include "utilities/exceptions.hpp" | |
46 #ifdef TARGET_OS_ARCH_linux_x86 | |
47 # include "orderAccess_linux_x86.inline.hpp" | |
48 #endif | |
49 #ifdef TARGET_OS_ARCH_linux_sparc | |
50 # include "orderAccess_linux_sparc.inline.hpp" | |
51 #endif | |
52 #ifdef TARGET_OS_ARCH_linux_zero | |
53 # include "orderAccess_linux_zero.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_ARCH_solaris_x86 | |
56 # include "orderAccess_solaris_x86.inline.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_ARCH_solaris_sparc | |
59 # include "orderAccess_solaris_sparc.inline.hpp" | |
60 #endif | |
61 #ifdef TARGET_OS_ARCH_windows_x86 | |
62 # include "orderAccess_windows_x86.inline.hpp" | |
63 #endif | |
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64 #ifdef TARGET_OS_ARCH_linux_arm |
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65 # include "orderAccess_linux_arm.inline.hpp" |
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66 #endif |
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67 #ifdef TARGET_OS_ARCH_linux_ppc |
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68 # include "orderAccess_linux_ppc.inline.hpp" |
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69 #endif |
14411 | 70 #ifdef TARGET_OS_ARCH_aix_ppc |
71 # include "orderAccess_aix_ppc.inline.hpp" | |
72 #endif | |
3960 | 73 #ifdef TARGET_OS_ARCH_bsd_x86 |
74 # include "orderAccess_bsd_x86.inline.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_ARCH_bsd_zero | |
77 # include "orderAccess_bsd_zero.inline.hpp" | |
78 #endif | |
1972 | 79 |
0 | 80 |
81 // no precompiled headers | |
82 #ifdef CC_INTERP | |
83 | |
84 /* | |
85 * USELABELS - If using GCC, then use labels for the opcode dispatching | |
86 * rather -then a switch statement. This improves performance because it | |
87 * gives us the oportunity to have the instructions that calculate the | |
88 * next opcode to jump to be intermixed with the rest of the instructions | |
89 * that implement the opcode (see UPDATE_PC_AND_TOS_AND_CONTINUE macro). | |
90 */ | |
91 #undef USELABELS | |
92 #ifdef __GNUC__ | |
93 /* | |
94 ASSERT signifies debugging. It is much easier to step thru bytecodes if we | |
95 don't use the computed goto approach. | |
96 */ | |
97 #ifndef ASSERT | |
98 #define USELABELS | |
99 #endif | |
100 #endif | |
101 | |
102 #undef CASE | |
103 #ifdef USELABELS | |
104 #define CASE(opcode) opc ## opcode | |
105 #define DEFAULT opc_default | |
106 #else | |
107 #define CASE(opcode) case Bytecodes:: opcode | |
108 #define DEFAULT default | |
109 #endif | |
110 | |
111 /* | |
112 * PREFETCH_OPCCODE - Some compilers do better if you prefetch the next | |
113 * opcode before going back to the top of the while loop, rather then having | |
114 * the top of the while loop handle it. This provides a better opportunity | |
115 * for instruction scheduling. Some compilers just do this prefetch | |
116 * automatically. Some actually end up with worse performance if you | |
117 * force the prefetch. Solaris gcc seems to do better, but cc does worse. | |
118 */ | |
119 #undef PREFETCH_OPCCODE | |
120 #define PREFETCH_OPCCODE | |
121 | |
122 /* | |
123 Interpreter safepoint: it is expected that the interpreter will have no live | |
124 handles of its own creation live at an interpreter safepoint. Therefore we | |
125 run a HandleMarkCleaner and trash all handles allocated in the call chain | |
126 since the JavaCalls::call_helper invocation that initiated the chain. | |
127 There really shouldn't be any handles remaining to trash but this is cheap | |
128 in relation to a safepoint. | |
129 */ | |
130 #define SAFEPOINT \ | |
131 if ( SafepointSynchronize::is_synchronizing()) { \ | |
132 { \ | |
133 /* zap freed handles rather than GC'ing them */ \ | |
134 HandleMarkCleaner __hmc(THREAD); \ | |
135 } \ | |
136 CALL_VM(SafepointSynchronize::block(THREAD), handle_exception); \ | |
137 } | |
138 | |
139 /* | |
140 * VM_JAVA_ERROR - Macro for throwing a java exception from | |
141 * the interpreter loop. Should really be a CALL_VM but there | |
142 * is no entry point to do the transition to vm so we just | |
143 * do it by hand here. | |
144 */ | |
145 #define VM_JAVA_ERROR_NO_JUMP(name, msg) \ | |
146 DECACHE_STATE(); \ | |
147 SET_LAST_JAVA_FRAME(); \ | |
148 { \ | |
149 ThreadInVMfromJava trans(THREAD); \ | |
150 Exceptions::_throw_msg(THREAD, __FILE__, __LINE__, name, msg); \ | |
151 } \ | |
152 RESET_LAST_JAVA_FRAME(); \ | |
153 CACHE_STATE(); | |
154 | |
155 // Normal throw of a java error | |
156 #define VM_JAVA_ERROR(name, msg) \ | |
157 VM_JAVA_ERROR_NO_JUMP(name, msg) \ | |
158 goto handle_exception; | |
159 | |
160 #ifdef PRODUCT | |
161 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) | |
162 #else | |
163 #define DO_UPDATE_INSTRUCTION_COUNT(opcode) \ | |
164 { \ | |
165 BytecodeCounter::_counter_value++; \ | |
166 BytecodeHistogram::_counters[(Bytecodes::Code)opcode]++; \ | |
167 if (StopInterpreterAt && StopInterpreterAt == BytecodeCounter::_counter_value) os::breakpoint(); \ | |
168 if (TraceBytecodes) { \ | |
169 CALL_VM((void)SharedRuntime::trace_bytecode(THREAD, 0, \ | |
170 topOfStack[Interpreter::expr_index_at(1)], \ | |
171 topOfStack[Interpreter::expr_index_at(2)]), \ | |
172 handle_exception); \ | |
173 } \ | |
174 } | |
175 #endif | |
176 | |
177 #undef DEBUGGER_SINGLE_STEP_NOTIFY | |
178 #ifdef VM_JVMTI | |
179 /* NOTE: (kbr) This macro must be called AFTER the PC has been | |
180 incremented. JvmtiExport::at_single_stepping_point() may cause a | |
181 breakpoint opcode to get inserted at the current PC to allow the | |
182 debugger to coalesce single-step events. | |
183 | |
184 As a result if we call at_single_stepping_point() we refetch opcode | |
185 to get the current opcode. This will override any other prefetching | |
186 that might have occurred. | |
187 */ | |
188 #define DEBUGGER_SINGLE_STEP_NOTIFY() \ | |
189 { \ | |
190 if (_jvmti_interp_events) { \ | |
191 if (JvmtiExport::should_post_single_step()) { \ | |
192 DECACHE_STATE(); \ | |
193 SET_LAST_JAVA_FRAME(); \ | |
194 ThreadInVMfromJava trans(THREAD); \ | |
195 JvmtiExport::at_single_stepping_point(THREAD, \ | |
196 istate->method(), \ | |
197 pc); \ | |
198 RESET_LAST_JAVA_FRAME(); \ | |
199 CACHE_STATE(); \ | |
200 if (THREAD->pop_frame_pending() && \ | |
201 !THREAD->pop_frame_in_process()) { \ | |
202 goto handle_Pop_Frame; \ | |
203 } \ | |
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204 if (THREAD->jvmti_thread_state() && \ |
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205 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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206 goto handle_Early_Return; \ |
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207 } \ |
0 | 208 opcode = *pc; \ |
209 } \ | |
210 } \ | |
211 } | |
212 #else | |
213 #define DEBUGGER_SINGLE_STEP_NOTIFY() | |
214 #endif | |
215 | |
216 /* | |
217 * CONTINUE - Macro for executing the next opcode. | |
218 */ | |
219 #undef CONTINUE | |
220 #ifdef USELABELS | |
221 // Have to do this dispatch this way in C++ because otherwise gcc complains about crossing an | |
222 // initialization (which is is the initialization of the table pointer...) | |
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223 #define DISPATCH(opcode) goto *(void*)dispatch_table[opcode] |
0 | 224 #define CONTINUE { \ |
225 opcode = *pc; \ | |
226 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
227 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
228 DISPATCH(opcode); \ | |
229 } | |
230 #else | |
231 #ifdef PREFETCH_OPCCODE | |
232 #define CONTINUE { \ | |
233 opcode = *pc; \ | |
234 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
235 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
236 continue; \ | |
237 } | |
238 #else | |
239 #define CONTINUE { \ | |
240 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
241 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
242 continue; \ | |
243 } | |
244 #endif | |
245 #endif | |
246 | |
247 | |
248 #define UPDATE_PC(opsize) {pc += opsize; } | |
249 /* | |
250 * UPDATE_PC_AND_TOS - Macro for updating the pc and topOfStack. | |
251 */ | |
252 #undef UPDATE_PC_AND_TOS | |
253 #define UPDATE_PC_AND_TOS(opsize, stack) \ | |
254 {pc += opsize; MORE_STACK(stack); } | |
255 | |
256 /* | |
257 * UPDATE_PC_AND_TOS_AND_CONTINUE - Macro for updating the pc and topOfStack, | |
258 * and executing the next opcode. It's somewhat similar to the combination | |
259 * of UPDATE_PC_AND_TOS and CONTINUE, but with some minor optimizations. | |
260 */ | |
261 #undef UPDATE_PC_AND_TOS_AND_CONTINUE | |
262 #ifdef USELABELS | |
263 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
264 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
265 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
266 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
267 DISPATCH(opcode); \ | |
268 } | |
269 | |
270 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
271 pc += opsize; opcode = *pc; \ | |
272 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
273 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
274 DISPATCH(opcode); \ | |
275 } | |
276 #else | |
277 #ifdef PREFETCH_OPCCODE | |
278 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
279 pc += opsize; opcode = *pc; MORE_STACK(stack); \ | |
280 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
281 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
282 goto do_continue; \ | |
283 } | |
284 | |
285 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
286 pc += opsize; opcode = *pc; \ | |
287 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
288 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
289 goto do_continue; \ | |
290 } | |
291 #else | |
292 #define UPDATE_PC_AND_TOS_AND_CONTINUE(opsize, stack) { \ | |
293 pc += opsize; MORE_STACK(stack); \ | |
294 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
295 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
296 goto do_continue; \ | |
297 } | |
298 | |
299 #define UPDATE_PC_AND_CONTINUE(opsize) { \ | |
300 pc += opsize; \ | |
301 DO_UPDATE_INSTRUCTION_COUNT(opcode); \ | |
302 DEBUGGER_SINGLE_STEP_NOTIFY(); \ | |
303 goto do_continue; \ | |
304 } | |
305 #endif /* PREFETCH_OPCCODE */ | |
306 #endif /* USELABELS */ | |
307 | |
308 // About to call a new method, update the save the adjusted pc and return to frame manager | |
309 #define UPDATE_PC_AND_RETURN(opsize) \ | |
310 DECACHE_TOS(); \ | |
311 istate->set_bcp(pc+opsize); \ | |
312 return; | |
313 | |
314 | |
315 #define METHOD istate->method() | |
10233 | 316 #define GET_METHOD_COUNTERS(res) \ |
317 res = METHOD->method_counters(); \ | |
318 if (res == NULL) { \ | |
319 CALL_VM(res = InterpreterRuntime::build_method_counters(THREAD, METHOD), handle_exception); \ | |
320 } | |
321 | |
0 | 322 #define OSR_REQUEST(res, branch_pc) \ |
323 CALL_VM(res=InterpreterRuntime::frequency_counter_overflow(THREAD, branch_pc), handle_exception); | |
324 /* | |
325 * For those opcodes that need to have a GC point on a backwards branch | |
326 */ | |
327 | |
328 // Backedge counting is kind of strange. The asm interpreter will increment | |
329 // the backedge counter as a separate counter but it does it's comparisons | |
330 // to the sum (scaled) of invocation counter and backedge count to make | |
331 // a decision. Seems kind of odd to sum them together like that | |
332 | |
333 // skip is delta from current bcp/bci for target, branch_pc is pre-branch bcp | |
334 | |
335 | |
336 #define DO_BACKEDGE_CHECKS(skip, branch_pc) \ | |
337 if ((skip) <= 0) { \ | |
10233 | 338 MethodCounters* mcs; \ |
339 GET_METHOD_COUNTERS(mcs); \ | |
1078 | 340 if (UseLoopCounter) { \ |
0 | 341 bool do_OSR = UseOnStackReplacement; \ |
10233 | 342 mcs->backedge_counter()->increment(); \ |
343 if (do_OSR) do_OSR = mcs->backedge_counter()->reached_InvocationLimit(); \ | |
0 | 344 if (do_OSR) { \ |
345 nmethod* osr_nmethod; \ | |
346 OSR_REQUEST(osr_nmethod, branch_pc); \ | |
347 if (osr_nmethod != NULL && osr_nmethod->osr_entry_bci() != InvalidOSREntryBci) { \ | |
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348 intptr_t* buf; \ |
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349 /* Call OSR migration with last java frame only, no checks. */ \ |
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350 CALL_VM_NAKED_LJF(buf=SharedRuntime::OSR_migration_begin(THREAD)); \ |
0 | 351 istate->set_msg(do_osr); \ |
352 istate->set_osr_buf((address)buf); \ | |
353 istate->set_osr_entry(osr_nmethod->osr_entry()); \ | |
354 return; \ | |
355 } \ | |
356 } \ | |
357 } /* UseCompiler ... */ \ | |
10233 | 358 mcs->invocation_counter()->increment(); \ |
0 | 359 SAFEPOINT; \ |
360 } | |
361 | |
362 /* | |
363 * For those opcodes that need to have a GC point on a backwards branch | |
364 */ | |
365 | |
366 /* | |
367 * Macros for caching and flushing the interpreter state. Some local | |
368 * variables need to be flushed out to the frame before we do certain | |
369 * things (like pushing frames or becomming gc safe) and some need to | |
370 * be recached later (like after popping a frame). We could use one | |
371 * macro to cache or decache everything, but this would be less then | |
372 * optimal because we don't always need to cache or decache everything | |
373 * because some things we know are already cached or decached. | |
374 */ | |
375 #undef DECACHE_TOS | |
376 #undef CACHE_TOS | |
377 #undef CACHE_PREV_TOS | |
378 #define DECACHE_TOS() istate->set_stack(topOfStack); | |
379 | |
380 #define CACHE_TOS() topOfStack = (intptr_t *)istate->stack(); | |
381 | |
382 #undef DECACHE_PC | |
383 #undef CACHE_PC | |
384 #define DECACHE_PC() istate->set_bcp(pc); | |
385 #define CACHE_PC() pc = istate->bcp(); | |
386 #define CACHE_CP() cp = istate->constants(); | |
387 #define CACHE_LOCALS() locals = istate->locals(); | |
388 #undef CACHE_FRAME | |
389 #define CACHE_FRAME() | |
390 | |
391 /* | |
392 * CHECK_NULL - Macro for throwing a NullPointerException if the object | |
393 * passed is a null ref. | |
394 * On some architectures/platforms it should be possible to do this implicitly | |
395 */ | |
396 #undef CHECK_NULL | |
397 #define CHECK_NULL(obj_) \ | |
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398 if ((obj_) == NULL) { \ |
0 | 399 VM_JAVA_ERROR(vmSymbols::java_lang_NullPointerException(), ""); \ |
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400 } \ |
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401 VERIFY_OOP(obj_) |
0 | 402 |
403 #define VMdoubleConstZero() 0.0 | |
404 #define VMdoubleConstOne() 1.0 | |
405 #define VMlongConstZero() (max_jlong-max_jlong) | |
406 #define VMlongConstOne() ((max_jlong-max_jlong)+1) | |
407 | |
408 /* | |
409 * Alignment | |
410 */ | |
411 #define VMalignWordUp(val) (((uintptr_t)(val) + 3) & ~3) | |
412 | |
413 // Decache the interpreter state that interpreter modifies directly (i.e. GC is indirect mod) | |
414 #define DECACHE_STATE() DECACHE_PC(); DECACHE_TOS(); | |
415 | |
416 // Reload interpreter state after calling the VM or a possible GC | |
417 #define CACHE_STATE() \ | |
418 CACHE_TOS(); \ | |
419 CACHE_PC(); \ | |
420 CACHE_CP(); \ | |
421 CACHE_LOCALS(); | |
422 | |
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423 // Call the VM with last java frame only. |
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424 #define CALL_VM_NAKED_LJF(func) \ |
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425 DECACHE_STATE(); \ |
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426 SET_LAST_JAVA_FRAME(); \ |
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427 func; \ |
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428 RESET_LAST_JAVA_FRAME(); \ |
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429 CACHE_STATE(); |
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430 |
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431 // Call the VM. Don't check for pending exceptions. |
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432 #define CALL_VM_NOCHECK(func) \ |
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433 CALL_VM_NAKED_LJF(func) \ |
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434 if (THREAD->pop_frame_pending() && \ |
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435 !THREAD->pop_frame_in_process()) { \ |
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436 goto handle_Pop_Frame; \ |
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437 } \ |
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438 if (THREAD->jvmti_thread_state() && \ |
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439 THREAD->jvmti_thread_state()->is_earlyret_pending()) { \ |
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440 goto handle_Early_Return; \ |
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441 } |
0 | 442 |
443 // Call the VM and check for pending exceptions | |
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444 #define CALL_VM(func, label) { \ |
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445 CALL_VM_NOCHECK(func); \ |
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446 if (THREAD->has_pending_exception()) goto label; \ |
0 | 447 } |
448 | |
449 /* | |
450 * BytecodeInterpreter::run(interpreterState istate) | |
451 * BytecodeInterpreter::runWithChecks(interpreterState istate) | |
452 * | |
453 * The real deal. This is where byte codes actually get interpreted. | |
454 * Basically it's a big while loop that iterates until we return from | |
455 * the method passed in. | |
456 * | |
457 * The runWithChecks is used if JVMTI is enabled. | |
458 * | |
459 */ | |
460 #if defined(VM_JVMTI) | |
461 void | |
462 BytecodeInterpreter::runWithChecks(interpreterState istate) { | |
463 #else | |
464 void | |
465 BytecodeInterpreter::run(interpreterState istate) { | |
466 #endif | |
467 | |
468 // In order to simplify some tests based on switches set at runtime | |
469 // we invoke the interpreter a single time after switches are enabled | |
470 // and set simpler to to test variables rather than method calls or complex | |
471 // boolean expressions. | |
472 | |
473 static int initialized = 0; | |
474 static int checkit = 0; | |
475 static intptr_t* c_addr = NULL; | |
476 static intptr_t c_value; | |
477 | |
478 if (checkit && *c_addr != c_value) { | |
479 os::breakpoint(); | |
480 } | |
481 #ifdef VM_JVMTI | |
482 static bool _jvmti_interp_events = 0; | |
483 #endif | |
484 | |
485 static int _compiling; // (UseCompiler || CountCompiledCalls) | |
486 | |
487 #ifdef ASSERT | |
488 if (istate->_msg != initialize) { | |
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489 // We have a problem here if we are running with a pre-hsx24 JDK (for example during bootstrap) |
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490 // because in that case, EnableInvokeDynamic is true by default but will be later switched off |
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491 // if java_lang_invoke_MethodHandle::compute_offsets() detects that the JDK only has the classes |
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492 // for the old JSR292 implementation. |
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493 // This leads to a situation where 'istate->_stack_limit' always accounts for |
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494 // methodOopDesc::extra_stack_entries() because it is computed in |
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495 // CppInterpreterGenerator::generate_compute_interpreter_state() which was generated while |
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496 // EnableInvokeDynamic was still true. On the other hand, istate->_method->max_stack() doesn't |
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497 // account for extra_stack_entries() anymore because at the time when it is called |
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498 // EnableInvokeDynamic was already set to false. |
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499 // So we have a second version of the assertion which handles the case where EnableInvokeDynamic was |
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500 // switched off because of the wrong classes. |
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501 if (EnableInvokeDynamic || FLAG_IS_CMDLINE(EnableInvokeDynamic)) { |
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502 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + 1), "bad stack limit"); |
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503 } else { |
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504 const int extra_stack_entries = Method::extra_stack_entries_for_jsr292; |
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505 assert(labs(istate->_stack_base - istate->_stack_limit) == (istate->_method->max_stack() + extra_stack_entries |
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506 + 1), "bad stack limit"); |
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507 } |
1729 | 508 #ifndef SHARK |
509 IA32_ONLY(assert(istate->_stack_limit == istate->_thread->last_Java_sp() + 1, "wrong")); | |
510 #endif // !SHARK | |
0 | 511 } |
512 // Verify linkages. | |
513 interpreterState l = istate; | |
514 do { | |
515 assert(l == l->_self_link, "bad link"); | |
516 l = l->_prev_link; | |
517 } while (l != NULL); | |
518 // Screwups with stack management usually cause us to overwrite istate | |
519 // save a copy so we can verify it. | |
520 interpreterState orig = istate; | |
521 #endif | |
522 | |
523 register intptr_t* topOfStack = (intptr_t *)istate->stack(); /* access with STACK macros */ | |
524 register address pc = istate->bcp(); | |
525 register jubyte opcode; | |
526 register intptr_t* locals = istate->locals(); | |
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527 register ConstantPoolCache* cp = istate->constants(); // method()->constants()->cache() |
0 | 528 #ifdef LOTS_OF_REGS |
529 register JavaThread* THREAD = istate->thread(); | |
530 #else | |
531 #undef THREAD | |
532 #define THREAD istate->thread() | |
533 #endif | |
534 | |
535 #ifdef USELABELS | |
536 const static void* const opclabels_data[256] = { | |
537 /* 0x00 */ &&opc_nop, &&opc_aconst_null,&&opc_iconst_m1,&&opc_iconst_0, | |
538 /* 0x04 */ &&opc_iconst_1,&&opc_iconst_2, &&opc_iconst_3, &&opc_iconst_4, | |
539 /* 0x08 */ &&opc_iconst_5,&&opc_lconst_0, &&opc_lconst_1, &&opc_fconst_0, | |
540 /* 0x0C */ &&opc_fconst_1,&&opc_fconst_2, &&opc_dconst_0, &&opc_dconst_1, | |
541 | |
542 /* 0x10 */ &&opc_bipush, &&opc_sipush, &&opc_ldc, &&opc_ldc_w, | |
543 /* 0x14 */ &&opc_ldc2_w, &&opc_iload, &&opc_lload, &&opc_fload, | |
544 /* 0x18 */ &&opc_dload, &&opc_aload, &&opc_iload_0,&&opc_iload_1, | |
545 /* 0x1C */ &&opc_iload_2,&&opc_iload_3,&&opc_lload_0,&&opc_lload_1, | |
546 | |
547 /* 0x20 */ &&opc_lload_2,&&opc_lload_3,&&opc_fload_0,&&opc_fload_1, | |
548 /* 0x24 */ &&opc_fload_2,&&opc_fload_3,&&opc_dload_0,&&opc_dload_1, | |
549 /* 0x28 */ &&opc_dload_2,&&opc_dload_3,&&opc_aload_0,&&opc_aload_1, | |
550 /* 0x2C */ &&opc_aload_2,&&opc_aload_3,&&opc_iaload, &&opc_laload, | |
551 | |
552 /* 0x30 */ &&opc_faload, &&opc_daload, &&opc_aaload, &&opc_baload, | |
553 /* 0x34 */ &&opc_caload, &&opc_saload, &&opc_istore, &&opc_lstore, | |
554 /* 0x38 */ &&opc_fstore, &&opc_dstore, &&opc_astore, &&opc_istore_0, | |
555 /* 0x3C */ &&opc_istore_1,&&opc_istore_2,&&opc_istore_3,&&opc_lstore_0, | |
556 | |
557 /* 0x40 */ &&opc_lstore_1,&&opc_lstore_2,&&opc_lstore_3,&&opc_fstore_0, | |
558 /* 0x44 */ &&opc_fstore_1,&&opc_fstore_2,&&opc_fstore_3,&&opc_dstore_0, | |
559 /* 0x48 */ &&opc_dstore_1,&&opc_dstore_2,&&opc_dstore_3,&&opc_astore_0, | |
560 /* 0x4C */ &&opc_astore_1,&&opc_astore_2,&&opc_astore_3,&&opc_iastore, | |
561 | |
562 /* 0x50 */ &&opc_lastore,&&opc_fastore,&&opc_dastore,&&opc_aastore, | |
563 /* 0x54 */ &&opc_bastore,&&opc_castore,&&opc_sastore,&&opc_pop, | |
564 /* 0x58 */ &&opc_pop2, &&opc_dup, &&opc_dup_x1, &&opc_dup_x2, | |
565 /* 0x5C */ &&opc_dup2, &&opc_dup2_x1,&&opc_dup2_x2,&&opc_swap, | |
566 | |
567 /* 0x60 */ &&opc_iadd,&&opc_ladd,&&opc_fadd,&&opc_dadd, | |
568 /* 0x64 */ &&opc_isub,&&opc_lsub,&&opc_fsub,&&opc_dsub, | |
569 /* 0x68 */ &&opc_imul,&&opc_lmul,&&opc_fmul,&&opc_dmul, | |
570 /* 0x6C */ &&opc_idiv,&&opc_ldiv,&&opc_fdiv,&&opc_ddiv, | |
571 | |
572 /* 0x70 */ &&opc_irem, &&opc_lrem, &&opc_frem,&&opc_drem, | |
573 /* 0x74 */ &&opc_ineg, &&opc_lneg, &&opc_fneg,&&opc_dneg, | |
574 /* 0x78 */ &&opc_ishl, &&opc_lshl, &&opc_ishr,&&opc_lshr, | |
575 /* 0x7C */ &&opc_iushr,&&opc_lushr,&&opc_iand,&&opc_land, | |
576 | |
577 /* 0x80 */ &&opc_ior, &&opc_lor,&&opc_ixor,&&opc_lxor, | |
578 /* 0x84 */ &&opc_iinc,&&opc_i2l,&&opc_i2f, &&opc_i2d, | |
579 /* 0x88 */ &&opc_l2i, &&opc_l2f,&&opc_l2d, &&opc_f2i, | |
580 /* 0x8C */ &&opc_f2l, &&opc_f2d,&&opc_d2i, &&opc_d2l, | |
581 | |
582 /* 0x90 */ &&opc_d2f, &&opc_i2b, &&opc_i2c, &&opc_i2s, | |
583 /* 0x94 */ &&opc_lcmp, &&opc_fcmpl,&&opc_fcmpg,&&opc_dcmpl, | |
584 /* 0x98 */ &&opc_dcmpg,&&opc_ifeq, &&opc_ifne, &&opc_iflt, | |
585 /* 0x9C */ &&opc_ifge, &&opc_ifgt, &&opc_ifle, &&opc_if_icmpeq, | |
586 | |
587 /* 0xA0 */ &&opc_if_icmpne,&&opc_if_icmplt,&&opc_if_icmpge, &&opc_if_icmpgt, | |
588 /* 0xA4 */ &&opc_if_icmple,&&opc_if_acmpeq,&&opc_if_acmpne, &&opc_goto, | |
589 /* 0xA8 */ &&opc_jsr, &&opc_ret, &&opc_tableswitch,&&opc_lookupswitch, | |
590 /* 0xAC */ &&opc_ireturn, &&opc_lreturn, &&opc_freturn, &&opc_dreturn, | |
591 | |
592 /* 0xB0 */ &&opc_areturn, &&opc_return, &&opc_getstatic, &&opc_putstatic, | |
593 /* 0xB4 */ &&opc_getfield, &&opc_putfield, &&opc_invokevirtual,&&opc_invokespecial, | |
2480 | 594 /* 0xB8 */ &&opc_invokestatic,&&opc_invokeinterface,&&opc_invokedynamic,&&opc_new, |
0 | 595 /* 0xBC */ &&opc_newarray, &&opc_anewarray, &&opc_arraylength, &&opc_athrow, |
596 | |
597 /* 0xC0 */ &&opc_checkcast, &&opc_instanceof, &&opc_monitorenter, &&opc_monitorexit, | |
598 /* 0xC4 */ &&opc_wide, &&opc_multianewarray, &&opc_ifnull, &&opc_ifnonnull, | |
123 | 599 /* 0xC8 */ &&opc_goto_w, &&opc_jsr_w, &&opc_breakpoint, &&opc_default, |
600 /* 0xCC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
601 | |
602 /* 0xD0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
0 | 603 /* 0xD4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
604 /* 0xD8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
605 /* 0xDC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
606 | |
607 /* 0xE0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
2480 | 608 /* 0xE4 */ &&opc_default, &&opc_fast_aldc, &&opc_fast_aldc_w, &&opc_return_register_finalizer, |
6926 | 609 /* 0xE8 */ &&opc_invokehandle,&&opc_default, &&opc_default, &&opc_default, |
0 | 610 /* 0xEC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, |
611 | |
612 /* 0xF0 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
613 /* 0xF4 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
614 /* 0xF8 */ &&opc_default, &&opc_default, &&opc_default, &&opc_default, | |
615 /* 0xFC */ &&opc_default, &&opc_default, &&opc_default, &&opc_default | |
616 }; | |
617 register uintptr_t *dispatch_table = (uintptr_t*)&opclabels_data[0]; | |
618 #endif /* USELABELS */ | |
619 | |
620 #ifdef ASSERT | |
621 // this will trigger a VERIFY_OOP on entry | |
622 if (istate->msg() != initialize && ! METHOD->is_static()) { | |
623 oop rcvr = LOCALS_OBJECT(0); | |
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624 VERIFY_OOP(rcvr); |
0 | 625 } |
626 #endif | |
627 // #define HACK | |
628 #ifdef HACK | |
629 bool interesting = false; | |
630 #endif // HACK | |
631 | |
632 /* QQQ this should be a stack method so we don't know actual direction */ | |
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633 guarantee(istate->msg() == initialize || |
0 | 634 topOfStack >= istate->stack_limit() && |
635 topOfStack < istate->stack_base(), | |
636 "Stack top out of range"); | |
637 | |
638 switch (istate->msg()) { | |
639 case initialize: { | |
640 if (initialized++) ShouldNotReachHere(); // Only one initialize call | |
641 _compiling = (UseCompiler || CountCompiledCalls); | |
642 #ifdef VM_JVMTI | |
643 _jvmti_interp_events = JvmtiExport::can_post_interpreter_events(); | |
644 #endif | |
645 return; | |
646 } | |
647 break; | |
648 case method_entry: { | |
649 THREAD->set_do_not_unlock(); | |
650 // count invocations | |
651 assert(initialized, "Interpreter not initialized"); | |
652 if (_compiling) { | |
10233 | 653 MethodCounters* mcs; |
654 GET_METHOD_COUNTERS(mcs); | |
0 | 655 if (ProfileInterpreter) { |
10233 | 656 METHOD->increment_interpreter_invocation_count(THREAD); |
0 | 657 } |
10233 | 658 mcs->invocation_counter()->increment(); |
659 if (mcs->invocation_counter()->reached_InvocationLimit()) { | |
0 | 660 CALL_VM((void)InterpreterRuntime::frequency_counter_overflow(THREAD, NULL), handle_exception); |
661 | |
662 // We no longer retry on a counter overflow | |
663 | |
664 // istate->set_msg(retry_method); | |
665 // THREAD->clr_do_not_unlock(); | |
666 // return; | |
667 } | |
668 SAFEPOINT; | |
669 } | |
670 | |
671 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
672 // initialize | |
673 os::breakpoint(); | |
674 } | |
675 | |
676 #ifdef HACK | |
677 { | |
678 ResourceMark rm; | |
679 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
680 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
681 tty->print_cr("entering: depth %d bci: %d", | |
682 (istate->_stack_base - istate->_stack), | |
683 istate->_bcp - istate->_method->code_base()); | |
684 interesting = true; | |
685 } | |
686 } | |
687 #endif // HACK | |
688 | |
689 | |
690 // lock method if synchronized | |
691 if (METHOD->is_synchronized()) { | |
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692 // oop rcvr = locals[0].j.r; |
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693 oop rcvr; |
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694 if (METHOD->is_static()) { |
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695 rcvr = METHOD->constants()->pool_holder()->java_mirror(); |
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696 } else { |
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697 rcvr = LOCALS_OBJECT(0); |
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698 VERIFY_OOP(rcvr); |
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699 } |
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700 // The initial monitor is ours for the taking |
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701 // Monitor not filled in frame manager any longer as this caused race condition with biased locking. |
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702 BasicObjectLock* mon = &istate->monitor_base()[-1]; |
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703 mon->set_obj(rcvr); |
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704 bool success = false; |
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705 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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706 markOop mark = rcvr->mark(); |
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707 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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708 // Implies UseBiasedLocking. |
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709 if (mark->has_bias_pattern()) { |
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710 uintptr_t thread_ident; |
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711 uintptr_t anticipated_bias_locking_value; |
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712 thread_ident = (uintptr_t)istate->thread(); |
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713 anticipated_bias_locking_value = |
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714 (((uintptr_t)rcvr->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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715 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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716 |
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717 if (anticipated_bias_locking_value == 0) { |
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718 // Already biased towards this thread, nothing to do. |
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719 if (PrintBiasedLockingStatistics) { |
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720 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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721 } |
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722 success = true; |
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723 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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724 // Try to revoke bias. |
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725 markOop header = rcvr->klass()->prototype_header(); |
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726 if (hash != markOopDesc::no_hash) { |
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727 header = header->copy_set_hash(hash); |
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728 } |
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729 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), mark) == mark) { |
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730 if (PrintBiasedLockingStatistics) |
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731 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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732 } |
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733 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) != 0) { |
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734 // Try to rebias. |
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735 markOop new_header = (markOop) ( (intptr_t) rcvr->klass()->prototype_header() | thread_ident); |
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736 if (hash != markOopDesc::no_hash) { |
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737 new_header = new_header->copy_set_hash(hash); |
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738 } |
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739 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), mark) == mark) { |
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740 if (PrintBiasedLockingStatistics) { |
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741 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
0 | 742 } |
743 } else { | |
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744 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
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745 } |
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746 success = true; |
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747 } else { |
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748 // Try to bias towards thread in case object is anonymously biased. |
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749 markOop header = (markOop) ((uintptr_t) mark & |
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750 ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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751 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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752 if (hash != markOopDesc::no_hash) { |
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753 header = header->copy_set_hash(hash); |
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754 } |
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755 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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|
756 // Debugging hint. |
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757 DEBUG_ONLY(mon->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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758 if (Atomic::cmpxchg_ptr((void*)new_header, rcvr->mark_addr(), header) == header) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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759 if (PrintBiasedLockingStatistics) { |
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760 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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761 } |
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|
762 } else { |
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|
763 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
764 } |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
765 success = true; |
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|
766 } |
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|
767 } |
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changeset
|
768 |
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|
769 // Traditional lightweight locking. |
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|
770 if (!success) { |
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|
771 markOop displaced = rcvr->mark()->set_unlocked(); |
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|
772 mon->lock()->set_displaced_header(displaced); |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
773 bool call_vm = UseHeavyMonitors; |
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774 if (call_vm || Atomic::cmpxchg_ptr(mon, rcvr->mark_addr(), displaced) != displaced) { |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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|
775 // Is it simple recursive case? |
48d3d0eb193b
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|
776 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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|
777 mon->lock()->set_displaced_header(NULL); |
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8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
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778 } else { |
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779 CALL_VM(InterpreterRuntime::monitorenter(THREAD, mon), handle_exception); |
0 | 780 } |
781 } | |
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782 } |
0 | 783 } |
784 THREAD->clr_do_not_unlock(); | |
785 | |
786 // Notify jvmti | |
787 #ifdef VM_JVMTI | |
788 if (_jvmti_interp_events) { | |
789 // Whenever JVMTI puts a thread in interp_only_mode, method | |
790 // entry/exit events are sent for that thread to track stack depth. | |
791 if (THREAD->is_interp_only_mode()) { | |
792 CALL_VM(InterpreterRuntime::post_method_entry(THREAD), | |
793 handle_exception); | |
794 } | |
795 } | |
796 #endif /* VM_JVMTI */ | |
797 | |
798 goto run; | |
799 } | |
800 | |
801 case popping_frame: { | |
802 // returned from a java call to pop the frame, restart the call | |
803 // clear the message so we don't confuse ourselves later | |
804 assert(THREAD->pop_frame_in_process(), "wrong frame pop state"); | |
805 istate->set_msg(no_request); | |
806 THREAD->clr_pop_frame_in_process(); | |
807 goto run; | |
808 } | |
809 | |
810 case method_resume: { | |
811 if ((istate->_stack_base - istate->_stack_limit) != istate->method()->max_stack() + 1) { | |
812 // resume | |
813 os::breakpoint(); | |
814 } | |
815 #ifdef HACK | |
816 { | |
817 ResourceMark rm; | |
818 char *method_name = istate->method()->name_and_sig_as_C_string(); | |
819 if (strstr(method_name, "runThese$TestRunner.run()V") != NULL) { | |
820 tty->print_cr("resume: depth %d bci: %d", | |
821 (istate->_stack_base - istate->_stack) , | |
822 istate->_bcp - istate->_method->code_base()); | |
823 interesting = true; | |
824 } | |
825 } | |
826 #endif // HACK | |
827 // returned from a java call, continue executing. | |
828 if (THREAD->pop_frame_pending() && !THREAD->pop_frame_in_process()) { | |
829 goto handle_Pop_Frame; | |
830 } | |
14400
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831 if (THREAD->jvmti_thread_state() && |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
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832 THREAD->jvmti_thread_state()->is_earlyret_pending()) { |
bfd9d884693d
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833 goto handle_Early_Return; |
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834 } |
0 | 835 |
836 if (THREAD->has_pending_exception()) goto handle_exception; | |
837 // Update the pc by the saved amount of the invoke bytecode size | |
838 UPDATE_PC(istate->bcp_advance()); | |
839 goto run; | |
840 } | |
841 | |
842 case deopt_resume2: { | |
843 // Returned from an opcode that will reexecute. Deopt was | |
844 // a result of a PopFrame request. | |
845 // | |
846 goto run; | |
847 } | |
848 | |
849 case deopt_resume: { | |
850 // Returned from an opcode that has completed. The stack has | |
851 // the result all we need to do is skip across the bytecode | |
852 // and continue (assuming there is no exception pending) | |
853 // | |
854 // compute continuation length | |
855 // | |
856 // Note: it is possible to deopt at a return_register_finalizer opcode | |
857 // because this requires entering the vm to do the registering. While the | |
858 // opcode is complete we can't advance because there are no more opcodes | |
859 // much like trying to deopt at a poll return. In that has we simply | |
860 // get out of here | |
861 // | |
2142 | 862 if ( Bytecodes::code_at(METHOD, pc) == Bytecodes::_return_register_finalizer) { |
0 | 863 // this will do the right thing even if an exception is pending. |
864 goto handle_return; | |
865 } | |
2142 | 866 UPDATE_PC(Bytecodes::length_at(METHOD, pc)); |
0 | 867 if (THREAD->has_pending_exception()) goto handle_exception; |
868 goto run; | |
869 } | |
870 case got_monitors: { | |
871 // continue locking now that we have a monitor to use | |
872 // we expect to find newly allocated monitor at the "top" of the monitor stack. | |
873 oop lockee = STACK_OBJECT(-1); | |
1681
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874 VERIFY_OOP(lockee); |
0 | 875 // derefing's lockee ought to provoke implicit null check |
876 // find a free monitor | |
877 BasicObjectLock* entry = (BasicObjectLock*) istate->stack_base(); | |
878 assert(entry->obj() == NULL, "Frame manager didn't allocate the monitor"); | |
879 entry->set_obj(lockee); | |
14395
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|
880 bool success = false; |
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881 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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|
882 |
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883 markOop mark = lockee->mark(); |
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884 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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885 // implies UseBiasedLocking |
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886 if (mark->has_bias_pattern()) { |
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887 uintptr_t thread_ident; |
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|
888 uintptr_t anticipated_bias_locking_value; |
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889 thread_ident = (uintptr_t)istate->thread(); |
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|
890 anticipated_bias_locking_value = |
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891 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
48d3d0eb193b
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892 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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893 |
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894 if (anticipated_bias_locking_value == 0) { |
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895 // already biased towards this thread, nothing to do |
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896 if (PrintBiasedLockingStatistics) { |
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897 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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898 } |
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899 success = true; |
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900 } else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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901 // try revoke bias |
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902 markOop header = lockee->klass()->prototype_header(); |
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903 if (hash != markOopDesc::no_hash) { |
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904 header = header->copy_set_hash(hash); |
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905 } |
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906 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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907 if (PrintBiasedLockingStatistics) { |
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908 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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909 } |
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910 } |
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911 } else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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912 // try rebias |
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913 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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914 if (hash != markOopDesc::no_hash) { |
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915 new_header = new_header->copy_set_hash(hash); |
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916 } |
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917 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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918 if (PrintBiasedLockingStatistics) { |
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919 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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920 } |
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921 } else { |
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922 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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923 } |
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924 success = true; |
0 | 925 } else { |
14395
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926 // try to bias towards thread in case object is anonymously biased |
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927 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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928 (uintptr_t)markOopDesc::age_mask_in_place | epoch_mask_in_place)); |
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929 if (hash != markOopDesc::no_hash) { |
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930 header = header->copy_set_hash(hash); |
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931 } |
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932 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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933 // debugging hint |
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934 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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935 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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936 if (PrintBiasedLockingStatistics) { |
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937 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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938 } |
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939 } else { |
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940 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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941 } |
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942 success = true; |
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943 } |
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944 } |
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945 |
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946 // traditional lightweight locking |
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947 if (!success) { |
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948 markOop displaced = lockee->mark()->set_unlocked(); |
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949 entry->lock()->set_displaced_header(displaced); |
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950 bool call_vm = UseHeavyMonitors; |
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951 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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952 // Is it simple recursive case? |
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953 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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954 entry->lock()->set_displaced_header(NULL); |
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955 } else { |
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956 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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957 } |
0 | 958 } |
959 } | |
960 UPDATE_PC_AND_TOS(1, -1); | |
961 goto run; | |
962 } | |
963 default: { | |
964 fatal("Unexpected message from frame manager"); | |
965 } | |
966 } | |
967 | |
968 run: | |
969 | |
970 DO_UPDATE_INSTRUCTION_COUNT(*pc) | |
971 DEBUGGER_SINGLE_STEP_NOTIFY(); | |
972 #ifdef PREFETCH_OPCCODE | |
973 opcode = *pc; /* prefetch first opcode */ | |
974 #endif | |
975 | |
976 #ifndef USELABELS | |
977 while (1) | |
978 #endif | |
979 { | |
980 #ifndef PREFETCH_OPCCODE | |
981 opcode = *pc; | |
982 #endif | |
983 // Seems like this happens twice per opcode. At worst this is only | |
984 // need at entry to the loop. | |
985 // DEBUGGER_SINGLE_STEP_NOTIFY(); | |
986 /* Using this labels avoids double breakpoints when quickening and | |
987 * when returing from transition frames. | |
988 */ | |
989 opcode_switch: | |
990 assert(istate == orig, "Corrupted istate"); | |
991 /* QQQ Hmm this has knowledge of direction, ought to be a stack method */ | |
992 assert(topOfStack >= istate->stack_limit(), "Stack overrun"); | |
993 assert(topOfStack < istate->stack_base(), "Stack underrun"); | |
994 | |
995 #ifdef USELABELS | |
996 DISPATCH(opcode); | |
997 #else | |
998 switch (opcode) | |
999 #endif | |
1000 { | |
1001 CASE(_nop): | |
1002 UPDATE_PC_AND_CONTINUE(1); | |
1003 | |
1004 /* Push miscellaneous constants onto the stack. */ | |
1005 | |
1006 CASE(_aconst_null): | |
1007 SET_STACK_OBJECT(NULL, 0); | |
1008 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1009 | |
1010 #undef OPC_CONST_n | |
1011 #define OPC_CONST_n(opcode, const_type, value) \ | |
1012 CASE(opcode): \ | |
1013 SET_STACK_ ## const_type(value, 0); \ | |
1014 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1015 | |
1016 OPC_CONST_n(_iconst_m1, INT, -1); | |
1017 OPC_CONST_n(_iconst_0, INT, 0); | |
1018 OPC_CONST_n(_iconst_1, INT, 1); | |
1019 OPC_CONST_n(_iconst_2, INT, 2); | |
1020 OPC_CONST_n(_iconst_3, INT, 3); | |
1021 OPC_CONST_n(_iconst_4, INT, 4); | |
1022 OPC_CONST_n(_iconst_5, INT, 5); | |
1023 OPC_CONST_n(_fconst_0, FLOAT, 0.0); | |
1024 OPC_CONST_n(_fconst_1, FLOAT, 1.0); | |
1025 OPC_CONST_n(_fconst_2, FLOAT, 2.0); | |
1026 | |
1027 #undef OPC_CONST2_n | |
1028 #define OPC_CONST2_n(opcname, value, key, kind) \ | |
1029 CASE(_##opcname): \ | |
1030 { \ | |
1031 SET_STACK_ ## kind(VM##key##Const##value(), 1); \ | |
1032 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1033 } | |
1034 OPC_CONST2_n(dconst_0, Zero, double, DOUBLE); | |
1035 OPC_CONST2_n(dconst_1, One, double, DOUBLE); | |
1036 OPC_CONST2_n(lconst_0, Zero, long, LONG); | |
1037 OPC_CONST2_n(lconst_1, One, long, LONG); | |
1038 | |
1039 /* Load constant from constant pool: */ | |
1040 | |
1041 /* Push a 1-byte signed integer value onto the stack. */ | |
1042 CASE(_bipush): | |
1043 SET_STACK_INT((jbyte)(pc[1]), 0); | |
1044 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1045 | |
1046 /* Push a 2-byte signed integer constant onto the stack. */ | |
1047 CASE(_sipush): | |
1048 SET_STACK_INT((int16_t)Bytes::get_Java_u2(pc + 1), 0); | |
1049 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
1050 | |
1051 /* load from local variable */ | |
1052 | |
1053 CASE(_aload): | |
1681
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1054 VERIFY_OOP(LOCALS_OBJECT(pc[1])); |
0 | 1055 SET_STACK_OBJECT(LOCALS_OBJECT(pc[1]), 0); |
1056 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1057 | |
1058 CASE(_iload): | |
1059 CASE(_fload): | |
1060 SET_STACK_SLOT(LOCALS_SLOT(pc[1]), 0); | |
1061 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 1); | |
1062 | |
1063 CASE(_lload): | |
1064 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(pc[1]), 1); | |
1065 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1066 | |
1067 CASE(_dload): | |
1068 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(pc[1]), 1); | |
1069 UPDATE_PC_AND_TOS_AND_CONTINUE(2, 2); | |
1070 | |
1071 #undef OPC_LOAD_n | |
1072 #define OPC_LOAD_n(num) \ | |
1073 CASE(_aload_##num): \ | |
1681
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1074 VERIFY_OOP(LOCALS_OBJECT(num)); \ |
0 | 1075 SET_STACK_OBJECT(LOCALS_OBJECT(num), 0); \ |
1076 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1077 \ | |
1078 CASE(_iload_##num): \ | |
1079 CASE(_fload_##num): \ | |
1080 SET_STACK_SLOT(LOCALS_SLOT(num), 0); \ | |
1081 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); \ | |
1082 \ | |
1083 CASE(_lload_##num): \ | |
1084 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(num), 1); \ | |
1085 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); \ | |
1086 CASE(_dload_##num): \ | |
1087 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_DOUBLE_AT(num), 1); \ | |
1088 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1089 | |
1090 OPC_LOAD_n(0); | |
1091 OPC_LOAD_n(1); | |
1092 OPC_LOAD_n(2); | |
1093 OPC_LOAD_n(3); | |
1094 | |
1095 /* store to a local variable */ | |
1096 | |
1097 CASE(_astore): | |
1098 astore(topOfStack, -1, locals, pc[1]); | |
1099 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1100 | |
1101 CASE(_istore): | |
1102 CASE(_fstore): | |
1103 SET_LOCALS_SLOT(STACK_SLOT(-1), pc[1]); | |
1104 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -1); | |
1105 | |
1106 CASE(_lstore): | |
1107 SET_LOCALS_LONG(STACK_LONG(-1), pc[1]); | |
1108 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1109 | |
1110 CASE(_dstore): | |
1111 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), pc[1]); | |
1112 UPDATE_PC_AND_TOS_AND_CONTINUE(2, -2); | |
1113 | |
1114 CASE(_wide): { | |
1115 uint16_t reg = Bytes::get_Java_u2(pc + 2); | |
1116 | |
1117 opcode = pc[1]; | |
1118 switch(opcode) { | |
1119 case Bytecodes::_aload: | |
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1120 VERIFY_OOP(LOCALS_OBJECT(reg)); |
0 | 1121 SET_STACK_OBJECT(LOCALS_OBJECT(reg), 0); |
1122 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1123 | |
1124 case Bytecodes::_iload: | |
1125 case Bytecodes::_fload: | |
1126 SET_STACK_SLOT(LOCALS_SLOT(reg), 0); | |
1127 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 1); | |
1128 | |
1129 case Bytecodes::_lload: | |
1130 SET_STACK_LONG_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1131 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1132 | |
1133 case Bytecodes::_dload: | |
1134 SET_STACK_DOUBLE_FROM_ADDR(LOCALS_LONG_AT(reg), 1); | |
1135 UPDATE_PC_AND_TOS_AND_CONTINUE(4, 2); | |
1136 | |
1137 case Bytecodes::_astore: | |
1138 astore(topOfStack, -1, locals, reg); | |
1139 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1140 | |
1141 case Bytecodes::_istore: | |
1142 case Bytecodes::_fstore: | |
1143 SET_LOCALS_SLOT(STACK_SLOT(-1), reg); | |
1144 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -1); | |
1145 | |
1146 case Bytecodes::_lstore: | |
1147 SET_LOCALS_LONG(STACK_LONG(-1), reg); | |
1148 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1149 | |
1150 case Bytecodes::_dstore: | |
1151 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), reg); | |
1152 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -2); | |
1153 | |
1154 case Bytecodes::_iinc: { | |
1155 int16_t offset = (int16_t)Bytes::get_Java_u2(pc+4); | |
1156 // Be nice to see what this generates.... QQQ | |
1157 SET_LOCALS_INT(LOCALS_INT(reg) + offset, reg); | |
1158 UPDATE_PC_AND_CONTINUE(6); | |
1159 } | |
1160 case Bytecodes::_ret: | |
1161 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(reg)); | |
1162 UPDATE_PC_AND_CONTINUE(0); | |
1163 default: | |
1164 VM_JAVA_ERROR(vmSymbols::java_lang_InternalError(), "undefined opcode"); | |
1165 } | |
1166 } | |
1167 | |
1168 | |
1169 #undef OPC_STORE_n | |
1170 #define OPC_STORE_n(num) \ | |
1171 CASE(_astore_##num): \ | |
1172 astore(topOfStack, -1, locals, num); \ | |
1173 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1174 CASE(_istore_##num): \ | |
1175 CASE(_fstore_##num): \ | |
1176 SET_LOCALS_SLOT(STACK_SLOT(-1), num); \ | |
1177 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1178 | |
1179 OPC_STORE_n(0); | |
1180 OPC_STORE_n(1); | |
1181 OPC_STORE_n(2); | |
1182 OPC_STORE_n(3); | |
1183 | |
1184 #undef OPC_DSTORE_n | |
1185 #define OPC_DSTORE_n(num) \ | |
1186 CASE(_dstore_##num): \ | |
1187 SET_LOCALS_DOUBLE(STACK_DOUBLE(-1), num); \ | |
1188 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1189 CASE(_lstore_##num): \ | |
1190 SET_LOCALS_LONG(STACK_LONG(-1), num); \ | |
1191 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1192 | |
1193 OPC_DSTORE_n(0); | |
1194 OPC_DSTORE_n(1); | |
1195 OPC_DSTORE_n(2); | |
1196 OPC_DSTORE_n(3); | |
1197 | |
1198 /* stack pop, dup, and insert opcodes */ | |
1199 | |
1200 | |
1201 CASE(_pop): /* Discard the top item on the stack */ | |
1202 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1203 | |
1204 | |
1205 CASE(_pop2): /* Discard the top 2 items on the stack */ | |
1206 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); | |
1207 | |
1208 | |
1209 CASE(_dup): /* Duplicate the top item on the stack */ | |
1210 dup(topOfStack); | |
1211 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1212 | |
1213 CASE(_dup2): /* Duplicate the top 2 items on the stack */ | |
1214 dup2(topOfStack); | |
1215 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1216 | |
1217 CASE(_dup_x1): /* insert top word two down */ | |
1218 dup_x1(topOfStack); | |
1219 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1220 | |
1221 CASE(_dup_x2): /* insert top word three down */ | |
1222 dup_x2(topOfStack); | |
1223 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1224 | |
1225 CASE(_dup2_x1): /* insert top 2 slots three down */ | |
1226 dup2_x1(topOfStack); | |
1227 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1228 | |
1229 CASE(_dup2_x2): /* insert top 2 slots four down */ | |
1230 dup2_x2(topOfStack); | |
1231 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1232 | |
1233 CASE(_swap): { /* swap top two elements on the stack */ | |
1234 swap(topOfStack); | |
1235 UPDATE_PC_AND_CONTINUE(1); | |
1236 } | |
1237 | |
1238 /* Perform various binary integer operations */ | |
1239 | |
1240 #undef OPC_INT_BINARY | |
1241 #define OPC_INT_BINARY(opcname, opname, test) \ | |
1242 CASE(_i##opcname): \ | |
1243 if (test && (STACK_INT(-1) == 0)) { \ | |
1244 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
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1245 "/ by zero"); \ |
0 | 1246 } \ |
1247 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1248 STACK_INT(-1)), \ | |
1249 -2); \ | |
1250 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1251 CASE(_l##opcname): \ | |
1252 { \ | |
1253 if (test) { \ | |
1254 jlong l1 = STACK_LONG(-1); \ | |
1255 if (VMlongEqz(l1)) { \ | |
1256 VM_JAVA_ERROR(vmSymbols::java_lang_ArithmeticException(), \ | |
1257 "/ by long zero"); \ | |
1258 } \ | |
1259 } \ | |
1260 /* First long at (-1,-2) next long at (-3,-4) */ \ | |
1261 SET_STACK_LONG(VMlong##opname(STACK_LONG(-3), \ | |
1262 STACK_LONG(-1)), \ | |
1263 -3); \ | |
1264 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1265 } | |
1266 | |
1267 OPC_INT_BINARY(add, Add, 0); | |
1268 OPC_INT_BINARY(sub, Sub, 0); | |
1269 OPC_INT_BINARY(mul, Mul, 0); | |
1270 OPC_INT_BINARY(and, And, 0); | |
1271 OPC_INT_BINARY(or, Or, 0); | |
1272 OPC_INT_BINARY(xor, Xor, 0); | |
1273 OPC_INT_BINARY(div, Div, 1); | |
1274 OPC_INT_BINARY(rem, Rem, 1); | |
1275 | |
1276 | |
1277 /* Perform various binary floating number operations */ | |
1278 /* On some machine/platforms/compilers div zero check can be implicit */ | |
1279 | |
1280 #undef OPC_FLOAT_BINARY | |
1281 #define OPC_FLOAT_BINARY(opcname, opname) \ | |
1282 CASE(_d##opcname): { \ | |
1283 SET_STACK_DOUBLE(VMdouble##opname(STACK_DOUBLE(-3), \ | |
1284 STACK_DOUBLE(-1)), \ | |
1285 -3); \ | |
1286 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -2); \ | |
1287 } \ | |
1288 CASE(_f##opcname): \ | |
1289 SET_STACK_FLOAT(VMfloat##opname(STACK_FLOAT(-2), \ | |
1290 STACK_FLOAT(-1)), \ | |
1291 -2); \ | |
1292 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1293 | |
1294 | |
1295 OPC_FLOAT_BINARY(add, Add); | |
1296 OPC_FLOAT_BINARY(sub, Sub); | |
1297 OPC_FLOAT_BINARY(mul, Mul); | |
1298 OPC_FLOAT_BINARY(div, Div); | |
1299 OPC_FLOAT_BINARY(rem, Rem); | |
1300 | |
1301 /* Shift operations | |
1302 * Shift left int and long: ishl, lshl | |
1303 * Logical shift right int and long w/zero extension: iushr, lushr | |
1304 * Arithmetic shift right int and long w/sign extension: ishr, lshr | |
1305 */ | |
1306 | |
1307 #undef OPC_SHIFT_BINARY | |
1308 #define OPC_SHIFT_BINARY(opcname, opname) \ | |
1309 CASE(_i##opcname): \ | |
1310 SET_STACK_INT(VMint##opname(STACK_INT(-2), \ | |
1311 STACK_INT(-1)), \ | |
1312 -2); \ | |
1313 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1314 CASE(_l##opcname): \ | |
1315 { \ | |
1316 SET_STACK_LONG(VMlong##opname(STACK_LONG(-2), \ | |
1317 STACK_INT(-1)), \ | |
1318 -2); \ | |
1319 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1320 } | |
1321 | |
1322 OPC_SHIFT_BINARY(shl, Shl); | |
1323 OPC_SHIFT_BINARY(shr, Shr); | |
1324 OPC_SHIFT_BINARY(ushr, Ushr); | |
1325 | |
1326 /* Increment local variable by constant */ | |
1327 CASE(_iinc): | |
1328 { | |
1329 // locals[pc[1]].j.i += (jbyte)(pc[2]); | |
1330 SET_LOCALS_INT(LOCALS_INT(pc[1]) + (jbyte)(pc[2]), pc[1]); | |
1331 UPDATE_PC_AND_CONTINUE(3); | |
1332 } | |
1333 | |
1334 /* negate the value on the top of the stack */ | |
1335 | |
1336 CASE(_ineg): | |
1337 SET_STACK_INT(VMintNeg(STACK_INT(-1)), -1); | |
1338 UPDATE_PC_AND_CONTINUE(1); | |
1339 | |
1340 CASE(_fneg): | |
1341 SET_STACK_FLOAT(VMfloatNeg(STACK_FLOAT(-1)), -1); | |
1342 UPDATE_PC_AND_CONTINUE(1); | |
1343 | |
1344 CASE(_lneg): | |
1345 { | |
1346 SET_STACK_LONG(VMlongNeg(STACK_LONG(-1)), -1); | |
1347 UPDATE_PC_AND_CONTINUE(1); | |
1348 } | |
1349 | |
1350 CASE(_dneg): | |
1351 { | |
1352 SET_STACK_DOUBLE(VMdoubleNeg(STACK_DOUBLE(-1)), -1); | |
1353 UPDATE_PC_AND_CONTINUE(1); | |
1354 } | |
1355 | |
1356 /* Conversion operations */ | |
1357 | |
1358 CASE(_i2f): /* convert top of stack int to float */ | |
1359 SET_STACK_FLOAT(VMint2Float(STACK_INT(-1)), -1); | |
1360 UPDATE_PC_AND_CONTINUE(1); | |
1361 | |
1362 CASE(_i2l): /* convert top of stack int to long */ | |
1363 { | |
1364 // this is ugly QQQ | |
1365 jlong r = VMint2Long(STACK_INT(-1)); | |
1366 MORE_STACK(-1); // Pop | |
1367 SET_STACK_LONG(r, 1); | |
1368 | |
1369 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1370 } | |
1371 | |
1372 CASE(_i2d): /* convert top of stack int to double */ | |
1373 { | |
1374 // this is ugly QQQ (why cast to jlong?? ) | |
1375 jdouble r = (jlong)STACK_INT(-1); | |
1376 MORE_STACK(-1); // Pop | |
1377 SET_STACK_DOUBLE(r, 1); | |
1378 | |
1379 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1380 } | |
1381 | |
1382 CASE(_l2i): /* convert top of stack long to int */ | |
1383 { | |
1384 jint r = VMlong2Int(STACK_LONG(-1)); | |
1385 MORE_STACK(-2); // Pop | |
1386 SET_STACK_INT(r, 0); | |
1387 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1388 } | |
1389 | |
1390 CASE(_l2f): /* convert top of stack long to float */ | |
1391 { | |
1392 jlong r = STACK_LONG(-1); | |
1393 MORE_STACK(-2); // Pop | |
1394 SET_STACK_FLOAT(VMlong2Float(r), 0); | |
1395 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1396 } | |
1397 | |
1398 CASE(_l2d): /* convert top of stack long to double */ | |
1399 { | |
1400 jlong r = STACK_LONG(-1); | |
1401 MORE_STACK(-2); // Pop | |
1402 SET_STACK_DOUBLE(VMlong2Double(r), 1); | |
1403 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1404 } | |
1405 | |
1406 CASE(_f2i): /* Convert top of stack float to int */ | |
1407 SET_STACK_INT(SharedRuntime::f2i(STACK_FLOAT(-1)), -1); | |
1408 UPDATE_PC_AND_CONTINUE(1); | |
1409 | |
1410 CASE(_f2l): /* convert top of stack float to long */ | |
1411 { | |
1412 jlong r = SharedRuntime::f2l(STACK_FLOAT(-1)); | |
1413 MORE_STACK(-1); // POP | |
1414 SET_STACK_LONG(r, 1); | |
1415 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1416 } | |
1417 | |
1418 CASE(_f2d): /* convert top of stack float to double */ | |
1419 { | |
1420 jfloat f; | |
1421 jdouble r; | |
1422 f = STACK_FLOAT(-1); | |
1423 r = (jdouble) f; | |
1424 MORE_STACK(-1); // POP | |
1425 SET_STACK_DOUBLE(r, 1); | |
1426 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1427 } | |
1428 | |
1429 CASE(_d2i): /* convert top of stack double to int */ | |
1430 { | |
1431 jint r1 = SharedRuntime::d2i(STACK_DOUBLE(-1)); | |
1432 MORE_STACK(-2); | |
1433 SET_STACK_INT(r1, 0); | |
1434 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1435 } | |
1436 | |
1437 CASE(_d2f): /* convert top of stack double to float */ | |
1438 { | |
1439 jfloat r1 = VMdouble2Float(STACK_DOUBLE(-1)); | |
1440 MORE_STACK(-2); | |
1441 SET_STACK_FLOAT(r1, 0); | |
1442 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1443 } | |
1444 | |
1445 CASE(_d2l): /* convert top of stack double to long */ | |
1446 { | |
1447 jlong r1 = SharedRuntime::d2l(STACK_DOUBLE(-1)); | |
1448 MORE_STACK(-2); | |
1449 SET_STACK_LONG(r1, 1); | |
1450 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 2); | |
1451 } | |
1452 | |
1453 CASE(_i2b): | |
1454 SET_STACK_INT(VMint2Byte(STACK_INT(-1)), -1); | |
1455 UPDATE_PC_AND_CONTINUE(1); | |
1456 | |
1457 CASE(_i2c): | |
1458 SET_STACK_INT(VMint2Char(STACK_INT(-1)), -1); | |
1459 UPDATE_PC_AND_CONTINUE(1); | |
1460 | |
1461 CASE(_i2s): | |
1462 SET_STACK_INT(VMint2Short(STACK_INT(-1)), -1); | |
1463 UPDATE_PC_AND_CONTINUE(1); | |
1464 | |
1465 /* comparison operators */ | |
1466 | |
1467 | |
1468 #define COMPARISON_OP(name, comparison) \ | |
1469 CASE(_if_icmp##name): { \ | |
1470 int skip = (STACK_INT(-2) comparison STACK_INT(-1)) \ | |
1471 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
1472 address branch_pc = pc; \ | |
1473 UPDATE_PC_AND_TOS(skip, -2); \ | |
1474 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1475 CONTINUE; \ | |
1476 } \ | |
1477 CASE(_if##name): { \ | |
1478 int skip = (STACK_INT(-1) comparison 0) \ | |
1479 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
1480 address branch_pc = pc; \ | |
1481 UPDATE_PC_AND_TOS(skip, -1); \ | |
1482 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1483 CONTINUE; \ | |
1484 } | |
1485 | |
1486 #define COMPARISON_OP2(name, comparison) \ | |
1487 COMPARISON_OP(name, comparison) \ | |
1488 CASE(_if_acmp##name): { \ | |
1489 int skip = (STACK_OBJECT(-2) comparison STACK_OBJECT(-1)) \ | |
1490 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ | |
1491 address branch_pc = pc; \ | |
1492 UPDATE_PC_AND_TOS(skip, -2); \ | |
1493 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1494 CONTINUE; \ | |
1495 } | |
1496 | |
1497 #define NULL_COMPARISON_NOT_OP(name) \ | |
1498 CASE(_if##name): { \ | |
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1499 int skip = (!(STACK_OBJECT(-1) == NULL)) \ |
0 | 1500 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1501 address branch_pc = pc; \ | |
1502 UPDATE_PC_AND_TOS(skip, -1); \ | |
1503 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1504 CONTINUE; \ | |
1505 } | |
1506 | |
1507 #define NULL_COMPARISON_OP(name) \ | |
1508 CASE(_if##name): { \ | |
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1509 int skip = ((STACK_OBJECT(-1) == NULL)) \ |
0 | 1510 ? (int16_t)Bytes::get_Java_u2(pc + 1) : 3; \ |
1511 address branch_pc = pc; \ | |
1512 UPDATE_PC_AND_TOS(skip, -1); \ | |
1513 DO_BACKEDGE_CHECKS(skip, branch_pc); \ | |
1514 CONTINUE; \ | |
1515 } | |
1516 COMPARISON_OP(lt, <); | |
1517 COMPARISON_OP(gt, >); | |
1518 COMPARISON_OP(le, <=); | |
1519 COMPARISON_OP(ge, >=); | |
1520 COMPARISON_OP2(eq, ==); /* include ref comparison */ | |
1521 COMPARISON_OP2(ne, !=); /* include ref comparison */ | |
1522 NULL_COMPARISON_OP(null); | |
1523 NULL_COMPARISON_NOT_OP(nonnull); | |
1524 | |
1525 /* Goto pc at specified offset in switch table. */ | |
1526 | |
1527 CASE(_tableswitch): { | |
1528 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1529 int32_t key = STACK_INT(-1); | |
1530 int32_t low = Bytes::get_Java_u4((address)&lpc[1]); | |
1531 int32_t high = Bytes::get_Java_u4((address)&lpc[2]); | |
1532 int32_t skip; | |
1533 key -= low; | |
1534 skip = ((uint32_t) key > (uint32_t)(high - low)) | |
1535 ? Bytes::get_Java_u4((address)&lpc[0]) | |
1536 : Bytes::get_Java_u4((address)&lpc[key + 3]); | |
1537 // Does this really need a full backedge check (osr?) | |
1538 address branch_pc = pc; | |
1539 UPDATE_PC_AND_TOS(skip, -1); | |
1540 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1541 CONTINUE; | |
1542 } | |
1543 | |
1544 /* Goto pc whose table entry matches specified key */ | |
1545 | |
1546 CASE(_lookupswitch): { | |
1547 jint* lpc = (jint*)VMalignWordUp(pc+1); | |
1548 int32_t key = STACK_INT(-1); | |
1549 int32_t skip = Bytes::get_Java_u4((address) lpc); /* default amount */ | |
1550 int32_t npairs = Bytes::get_Java_u4((address) &lpc[1]); | |
1551 while (--npairs >= 0) { | |
1552 lpc += 2; | |
1553 if (key == (int32_t)Bytes::get_Java_u4((address)lpc)) { | |
1554 skip = Bytes::get_Java_u4((address)&lpc[1]); | |
1555 break; | |
1556 } | |
1557 } | |
1558 address branch_pc = pc; | |
1559 UPDATE_PC_AND_TOS(skip, -1); | |
1560 DO_BACKEDGE_CHECKS(skip, branch_pc); | |
1561 CONTINUE; | |
1562 } | |
1563 | |
1564 CASE(_fcmpl): | |
1565 CASE(_fcmpg): | |
1566 { | |
1567 SET_STACK_INT(VMfloatCompare(STACK_FLOAT(-2), | |
1568 STACK_FLOAT(-1), | |
1569 (opcode == Bytecodes::_fcmpl ? -1 : 1)), | |
1570 -2); | |
1571 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1572 } | |
1573 | |
1574 CASE(_dcmpl): | |
1575 CASE(_dcmpg): | |
1576 { | |
1577 int r = VMdoubleCompare(STACK_DOUBLE(-3), | |
1578 STACK_DOUBLE(-1), | |
1579 (opcode == Bytecodes::_dcmpl ? -1 : 1)); | |
1580 MORE_STACK(-4); // Pop | |
1581 SET_STACK_INT(r, 0); | |
1582 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1583 } | |
1584 | |
1585 CASE(_lcmp): | |
1586 { | |
1587 int r = VMlongCompare(STACK_LONG(-3), STACK_LONG(-1)); | |
1588 MORE_STACK(-4); | |
1589 SET_STACK_INT(r, 0); | |
1590 UPDATE_PC_AND_TOS_AND_CONTINUE(1, 1); | |
1591 } | |
1592 | |
1593 | |
1594 /* Return from a method */ | |
1595 | |
1596 CASE(_areturn): | |
1597 CASE(_ireturn): | |
1598 CASE(_freturn): | |
1599 { | |
1600 // Allow a safepoint before returning to frame manager. | |
1601 SAFEPOINT; | |
1602 | |
1603 goto handle_return; | |
1604 } | |
1605 | |
1606 CASE(_lreturn): | |
1607 CASE(_dreturn): | |
1608 { | |
1609 // Allow a safepoint before returning to frame manager. | |
1610 SAFEPOINT; | |
1611 goto handle_return; | |
1612 } | |
1613 | |
1614 CASE(_return_register_finalizer): { | |
1615 | |
1616 oop rcvr = LOCALS_OBJECT(0); | |
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1617 VERIFY_OOP(rcvr); |
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1618 if (rcvr->klass()->has_finalizer()) { |
0 | 1619 CALL_VM(InterpreterRuntime::register_finalizer(THREAD, rcvr), handle_exception); |
1620 } | |
1621 goto handle_return; | |
1622 } | |
1623 CASE(_return): { | |
1624 | |
1625 // Allow a safepoint before returning to frame manager. | |
1626 SAFEPOINT; | |
1627 goto handle_return; | |
1628 } | |
1629 | |
1630 /* Array access byte-codes */ | |
1631 | |
1632 /* Every array access byte-code starts out like this */ | |
1633 // arrayOopDesc* arrObj = (arrayOopDesc*)STACK_OBJECT(arrayOff); | |
1634 #define ARRAY_INTRO(arrayOff) \ | |
1635 arrayOop arrObj = (arrayOop)STACK_OBJECT(arrayOff); \ | |
1636 jint index = STACK_INT(arrayOff + 1); \ | |
1637 char message[jintAsStringSize]; \ | |
1638 CHECK_NULL(arrObj); \ | |
1639 if ((uint32_t)index >= (uint32_t)arrObj->length()) { \ | |
1640 sprintf(message, "%d", index); \ | |
1641 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), \ | |
1642 message); \ | |
1643 } | |
1644 | |
1645 /* 32-bit loads. These handle conversion from < 32-bit types */ | |
1646 #define ARRAY_LOADTO32(T, T2, format, stackRes, extra) \ | |
1647 { \ | |
1648 ARRAY_INTRO(-2); \ | |
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1649 (void)extra; \ |
0 | 1650 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), \ |
1651 -2); \ | |
1652 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); \ | |
1653 } | |
1654 | |
1655 /* 64-bit loads */ | |
1656 #define ARRAY_LOADTO64(T,T2, stackRes, extra) \ | |
1657 { \ | |
1658 ARRAY_INTRO(-2); \ | |
1659 SET_ ## stackRes(*(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)), -1); \ | |
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1660 (void)extra; \ |
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1661 UPDATE_PC_AND_CONTINUE(1); \ |
0 | 1662 } |
1663 | |
1664 CASE(_iaload): | |
1665 ARRAY_LOADTO32(T_INT, jint, "%d", STACK_INT, 0); | |
1666 CASE(_faload): | |
1667 ARRAY_LOADTO32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
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1668 CASE(_aaload): { |
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1669 ARRAY_INTRO(-2); |
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1670 SET_STACK_OBJECT(((objArrayOop) arrObj)->obj_at(index), -2); |
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1671 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); |
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1672 } |
0 | 1673 CASE(_baload): |
1674 ARRAY_LOADTO32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1675 CASE(_caload): | |
1676 ARRAY_LOADTO32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1677 CASE(_saload): | |
1678 ARRAY_LOADTO32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1679 CASE(_laload): | |
1680 ARRAY_LOADTO64(T_LONG, jlong, STACK_LONG, 0); | |
1681 CASE(_daload): | |
1682 ARRAY_LOADTO64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1683 | |
1684 /* 32-bit stores. These handle conversion to < 32-bit types */ | |
1685 #define ARRAY_STOREFROM32(T, T2, format, stackSrc, extra) \ | |
1686 { \ | |
1687 ARRAY_INTRO(-3); \ | |
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1688 (void)extra; \ |
0 | 1689 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1690 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); \ | |
1691 } | |
1692 | |
1693 /* 64-bit stores */ | |
1694 #define ARRAY_STOREFROM64(T, T2, stackSrc, extra) \ | |
1695 { \ | |
1696 ARRAY_INTRO(-4); \ | |
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1697 (void)extra; \ |
0 | 1698 *(T2 *)(((address) arrObj->base(T)) + index * sizeof(T2)) = stackSrc( -1); \ |
1699 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -4); \ | |
1700 } | |
1701 | |
1702 CASE(_iastore): | |
1703 ARRAY_STOREFROM32(T_INT, jint, "%d", STACK_INT, 0); | |
1704 CASE(_fastore): | |
1705 ARRAY_STOREFROM32(T_FLOAT, jfloat, "%f", STACK_FLOAT, 0); | |
1706 /* | |
1707 * This one looks different because of the assignability check | |
1708 */ | |
1709 CASE(_aastore): { | |
1710 oop rhsObject = STACK_OBJECT(-1); | |
1681
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1711 VERIFY_OOP(rhsObject); |
0 | 1712 ARRAY_INTRO( -3); |
1713 // arrObj, index are set | |
1714 if (rhsObject != NULL) { | |
1715 /* Check assignability of rhsObject into arrObj */ | |
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1716 Klass* rhsKlassOop = rhsObject->klass(); // EBX (subclass) |
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1717 Klass* elemKlassOop = ObjArrayKlass::cast(arrObj->klass())->element_klass(); // superklass EAX |
0 | 1718 // |
1719 // Check for compatibilty. This check must not GC!! | |
1720 // Seems way more expensive now that we must dispatch | |
1721 // | |
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1722 if (rhsKlassOop != elemKlassOop && !rhsKlassOop->is_subtype_of(elemKlassOop)) { // ebx->is... |
0 | 1723 VM_JAVA_ERROR(vmSymbols::java_lang_ArrayStoreException(), ""); |
1724 } | |
1725 } | |
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1726 ((objArrayOopDesc *) arrObj)->obj_at_put(index, rhsObject); |
0 | 1727 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -3); |
1728 } | |
1729 CASE(_bastore): | |
1730 ARRAY_STOREFROM32(T_BYTE, jbyte, "%d", STACK_INT, 0); | |
1731 CASE(_castore): | |
1732 ARRAY_STOREFROM32(T_CHAR, jchar, "%d", STACK_INT, 0); | |
1733 CASE(_sastore): | |
1734 ARRAY_STOREFROM32(T_SHORT, jshort, "%d", STACK_INT, 0); | |
1735 CASE(_lastore): | |
1736 ARRAY_STOREFROM64(T_LONG, jlong, STACK_LONG, 0); | |
1737 CASE(_dastore): | |
1738 ARRAY_STOREFROM64(T_DOUBLE, jdouble, STACK_DOUBLE, 0); | |
1739 | |
1740 CASE(_arraylength): | |
1741 { | |
1742 arrayOop ary = (arrayOop) STACK_OBJECT(-1); | |
1743 CHECK_NULL(ary); | |
1744 SET_STACK_INT(ary->length(), -1); | |
1745 UPDATE_PC_AND_CONTINUE(1); | |
1746 } | |
1747 | |
1748 /* monitorenter and monitorexit for locking/unlocking an object */ | |
1749 | |
1750 CASE(_monitorenter): { | |
1751 oop lockee = STACK_OBJECT(-1); | |
1752 // derefing's lockee ought to provoke implicit null check | |
1753 CHECK_NULL(lockee); | |
1754 // find a free monitor or one already allocated for this object | |
1755 // if we find a matching object then we need a new monitor | |
1756 // since this is recursive enter | |
1757 BasicObjectLock* limit = istate->monitor_base(); | |
1758 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1759 BasicObjectLock* entry = NULL; | |
1760 while (most_recent != limit ) { | |
1761 if (most_recent->obj() == NULL) entry = most_recent; | |
1762 else if (most_recent->obj() == lockee) break; | |
1763 most_recent++; | |
1764 } | |
1765 if (entry != NULL) { | |
1766 entry->set_obj(lockee); | |
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1767 int success = false; |
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1768 uintptr_t epoch_mask_in_place = (uintptr_t)markOopDesc::epoch_mask_in_place; |
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1769 |
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1770 markOop mark = lockee->mark(); |
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1771 intptr_t hash = (intptr_t) markOopDesc::no_hash; |
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1772 // implies UseBiasedLocking |
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1773 if (mark->has_bias_pattern()) { |
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1774 uintptr_t thread_ident; |
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1775 uintptr_t anticipated_bias_locking_value; |
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1776 thread_ident = (uintptr_t)istate->thread(); |
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1777 anticipated_bias_locking_value = |
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1778 (((uintptr_t)lockee->klass()->prototype_header() | thread_ident) ^ (uintptr_t)mark) & |
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1779 ~((uintptr_t) markOopDesc::age_mask_in_place); |
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1780 |
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1781 if (anticipated_bias_locking_value == 0) { |
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1782 // already biased towards this thread, nothing to do |
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1783 if (PrintBiasedLockingStatistics) { |
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1784 (* BiasedLocking::biased_lock_entry_count_addr())++; |
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1785 } |
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1786 success = true; |
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1787 } |
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1788 else if ((anticipated_bias_locking_value & markOopDesc::biased_lock_mask_in_place) != 0) { |
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1789 // try revoke bias |
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1790 markOop header = lockee->klass()->prototype_header(); |
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1791 if (hash != markOopDesc::no_hash) { |
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1792 header = header->copy_set_hash(hash); |
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1793 } |
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1794 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), mark) == mark) { |
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1795 if (PrintBiasedLockingStatistics) |
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1796 (*BiasedLocking::revoked_lock_entry_count_addr())++; |
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1797 } |
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1798 } |
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1799 else if ((anticipated_bias_locking_value & epoch_mask_in_place) !=0) { |
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1800 // try rebias |
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1801 markOop new_header = (markOop) ( (intptr_t) lockee->klass()->prototype_header() | thread_ident); |
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1802 if (hash != markOopDesc::no_hash) { |
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1803 new_header = new_header->copy_set_hash(hash); |
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1804 } |
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1805 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), mark) == mark) { |
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1806 if (PrintBiasedLockingStatistics) |
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1807 (* BiasedLocking::rebiased_lock_entry_count_addr())++; |
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1808 } |
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1809 else { |
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1810 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1811 } |
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1812 success = true; |
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1813 } |
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1814 else { |
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1815 // try to bias towards thread in case object is anonymously biased |
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1816 markOop header = (markOop) ((uintptr_t) mark & ((uintptr_t)markOopDesc::biased_lock_mask_in_place | |
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1817 (uintptr_t)markOopDesc::age_mask_in_place | |
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1818 epoch_mask_in_place)); |
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1819 if (hash != markOopDesc::no_hash) { |
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1820 header = header->copy_set_hash(hash); |
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1821 } |
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1822 markOop new_header = (markOop) ((uintptr_t) header | thread_ident); |
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1823 // debugging hint |
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1824 DEBUG_ONLY(entry->lock()->set_displaced_header((markOop) (uintptr_t) 0xdeaddead);) |
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1825 if (Atomic::cmpxchg_ptr((void*)new_header, lockee->mark_addr(), header) == header) { |
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1826 if (PrintBiasedLockingStatistics) |
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1827 (* BiasedLocking::anonymously_biased_lock_entry_count_addr())++; |
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1828 } |
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1829 else { |
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1830 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1831 } |
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1832 success = true; |
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1833 } |
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1834 } |
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1835 |
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1836 // traditional lightweight locking |
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1837 if (!success) { |
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1838 markOop displaced = lockee->mark()->set_unlocked(); |
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1839 entry->lock()->set_displaced_header(displaced); |
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1840 bool call_vm = UseHeavyMonitors; |
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1841 if (call_vm || Atomic::cmpxchg_ptr(entry, lockee->mark_addr(), displaced) != displaced) { |
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1842 // Is it simple recursive case? |
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1843 if (!call_vm && THREAD->is_lock_owned((address) displaced->clear_lock_bits())) { |
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1844 entry->lock()->set_displaced_header(NULL); |
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1845 } else { |
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1846 CALL_VM(InterpreterRuntime::monitorenter(THREAD, entry), handle_exception); |
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1847 } |
0 | 1848 } |
1849 } | |
1850 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1851 } else { | |
1852 istate->set_msg(more_monitors); | |
1853 UPDATE_PC_AND_RETURN(0); // Re-execute | |
1854 } | |
1855 } | |
1856 | |
1857 CASE(_monitorexit): { | |
1858 oop lockee = STACK_OBJECT(-1); | |
1859 CHECK_NULL(lockee); | |
1860 // derefing's lockee ought to provoke implicit null check | |
1861 // find our monitor slot | |
1862 BasicObjectLock* limit = istate->monitor_base(); | |
1863 BasicObjectLock* most_recent = (BasicObjectLock*) istate->stack_base(); | |
1864 while (most_recent != limit ) { | |
1865 if ((most_recent)->obj() == lockee) { | |
1866 BasicLock* lock = most_recent->lock(); | |
1867 markOop header = lock->displaced_header(); | |
1868 most_recent->set_obj(NULL); | |
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1869 if (!lockee->mark()->has_bias_pattern()) { |
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1870 bool call_vm = UseHeavyMonitors; |
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1871 // If it isn't recursive we either must swap old header or call the runtime |
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1872 if (header != NULL || call_vm) { |
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1873 if (call_vm || Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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1874 // restore object for the slow case |
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1875 most_recent->set_obj(lockee); |
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1876 CALL_VM(InterpreterRuntime::monitorexit(THREAD, most_recent), handle_exception); |
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1877 } |
0 | 1878 } |
1879 } | |
1880 UPDATE_PC_AND_TOS_AND_CONTINUE(1, -1); | |
1881 } | |
1882 most_recent++; | |
1883 } | |
1884 // Need to throw illegal monitor state exception | |
1885 CALL_VM(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD), handle_exception); | |
2480 | 1886 ShouldNotReachHere(); |
0 | 1887 } |
1888 | |
1889 /* All of the non-quick opcodes. */ | |
1890 | |
1891 /* -Set clobbersCpIndex true if the quickened opcode clobbers the | |
1892 * constant pool index in the instruction. | |
1893 */ | |
1894 CASE(_getfield): | |
1895 CASE(_getstatic): | |
1896 { | |
1897 u2 index; | |
1898 ConstantPoolCacheEntry* cache; | |
1899 index = Bytes::get_native_u2(pc+1); | |
1900 | |
1901 // QQQ Need to make this as inlined as possible. Probably need to | |
1902 // split all the bytecode cases out so c++ compiler has a chance | |
1903 // for constant prop to fold everything possible away. | |
1904 | |
1905 cache = cp->entry_at(index); | |
1906 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
1907 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
1908 handle_exception); | |
1909 cache = cp->entry_at(index); | |
1910 } | |
1911 | |
1912 #ifdef VM_JVMTI | |
1913 if (_jvmti_interp_events) { | |
1914 int *count_addr; | |
1915 oop obj; | |
1916 // Check to see if a field modification watch has been set | |
1917 // before we take the time to call into the VM. | |
1918 count_addr = (int *)JvmtiExport::get_field_access_count_addr(); | |
1919 if ( *count_addr > 0 ) { | |
1920 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
1921 obj = (oop)NULL; | |
1922 } else { | |
1923 obj = (oop) STACK_OBJECT(-1); | |
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1924 VERIFY_OOP(obj); |
0 | 1925 } |
1926 CALL_VM(InterpreterRuntime::post_field_access(THREAD, | |
1927 obj, | |
1928 cache), | |
1929 handle_exception); | |
1930 } | |
1931 } | |
1932 #endif /* VM_JVMTI */ | |
1933 | |
1934 oop obj; | |
1935 if ((Bytecodes::Code)opcode == Bytecodes::_getstatic) { | |
6926 | 1936 Klass* k = cache->f1_as_klass(); |
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1937 obj = k->java_mirror(); |
0 | 1938 MORE_STACK(1); // Assume single slot push |
1939 } else { | |
1940 obj = (oop) STACK_OBJECT(-1); | |
1941 CHECK_NULL(obj); | |
1942 } | |
1943 | |
1944 // | |
1945 // Now store the result on the stack | |
1946 // | |
1947 TosState tos_type = cache->flag_state(); | |
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1948 int field_offset = cache->f2_as_index(); |
0 | 1949 if (cache->is_volatile()) { |
1950 if (tos_type == atos) { | |
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1951 VERIFY_OOP(obj->obj_field_acquire(field_offset)); |
0 | 1952 SET_STACK_OBJECT(obj->obj_field_acquire(field_offset), -1); |
1953 } else if (tos_type == itos) { | |
1954 SET_STACK_INT(obj->int_field_acquire(field_offset), -1); | |
1955 } else if (tos_type == ltos) { | |
1956 SET_STACK_LONG(obj->long_field_acquire(field_offset), 0); | |
1957 MORE_STACK(1); | |
1958 } else if (tos_type == btos) { | |
1959 SET_STACK_INT(obj->byte_field_acquire(field_offset), -1); | |
1960 } else if (tos_type == ctos) { | |
1961 SET_STACK_INT(obj->char_field_acquire(field_offset), -1); | |
1962 } else if (tos_type == stos) { | |
1963 SET_STACK_INT(obj->short_field_acquire(field_offset), -1); | |
1964 } else if (tos_type == ftos) { | |
1965 SET_STACK_FLOAT(obj->float_field_acquire(field_offset), -1); | |
1966 } else { | |
1967 SET_STACK_DOUBLE(obj->double_field_acquire(field_offset), 0); | |
1968 MORE_STACK(1); | |
1969 } | |
1970 } else { | |
1971 if (tos_type == atos) { | |
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1972 VERIFY_OOP(obj->obj_field(field_offset)); |
0 | 1973 SET_STACK_OBJECT(obj->obj_field(field_offset), -1); |
1974 } else if (tos_type == itos) { | |
1975 SET_STACK_INT(obj->int_field(field_offset), -1); | |
1976 } else if (tos_type == ltos) { | |
1977 SET_STACK_LONG(obj->long_field(field_offset), 0); | |
1978 MORE_STACK(1); | |
1979 } else if (tos_type == btos) { | |
1980 SET_STACK_INT(obj->byte_field(field_offset), -1); | |
1981 } else if (tos_type == ctos) { | |
1982 SET_STACK_INT(obj->char_field(field_offset), -1); | |
1983 } else if (tos_type == stos) { | |
1984 SET_STACK_INT(obj->short_field(field_offset), -1); | |
1985 } else if (tos_type == ftos) { | |
1986 SET_STACK_FLOAT(obj->float_field(field_offset), -1); | |
1987 } else { | |
1988 SET_STACK_DOUBLE(obj->double_field(field_offset), 0); | |
1989 MORE_STACK(1); | |
1990 } | |
1991 } | |
1992 | |
1993 UPDATE_PC_AND_CONTINUE(3); | |
1994 } | |
1995 | |
1996 CASE(_putfield): | |
1997 CASE(_putstatic): | |
1998 { | |
1999 u2 index = Bytes::get_native_u2(pc+1); | |
2000 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2001 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2002 CALL_VM(InterpreterRuntime::resolve_get_put(THREAD, (Bytecodes::Code)opcode), | |
2003 handle_exception); | |
2004 cache = cp->entry_at(index); | |
2005 } | |
2006 | |
2007 #ifdef VM_JVMTI | |
2008 if (_jvmti_interp_events) { | |
2009 int *count_addr; | |
2010 oop obj; | |
2011 // Check to see if a field modification watch has been set | |
2012 // before we take the time to call into the VM. | |
2013 count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); | |
2014 if ( *count_addr > 0 ) { | |
2015 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
2016 obj = (oop)NULL; | |
2017 } | |
2018 else { | |
2019 if (cache->is_long() || cache->is_double()) { | |
2020 obj = (oop) STACK_OBJECT(-3); | |
2021 } else { | |
2022 obj = (oop) STACK_OBJECT(-2); | |
2023 } | |
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2024 VERIFY_OOP(obj); |
0 | 2025 } |
2026 | |
2027 CALL_VM(InterpreterRuntime::post_field_modification(THREAD, | |
2028 obj, | |
2029 cache, | |
2030 (jvalue *)STACK_SLOT(-1)), | |
2031 handle_exception); | |
2032 } | |
2033 } | |
2034 #endif /* VM_JVMTI */ | |
2035 | |
2036 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2037 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2038 | |
2039 oop obj; | |
2040 int count; | |
2041 TosState tos_type = cache->flag_state(); | |
2042 | |
2043 count = -1; | |
2044 if (tos_type == ltos || tos_type == dtos) { | |
2045 --count; | |
2046 } | |
2047 if ((Bytecodes::Code)opcode == Bytecodes::_putstatic) { | |
6926 | 2048 Klass* k = cache->f1_as_klass(); |
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2049 obj = k->java_mirror(); |
0 | 2050 } else { |
2051 --count; | |
2052 obj = (oop) STACK_OBJECT(count); | |
2053 CHECK_NULL(obj); | |
2054 } | |
2055 | |
2056 // | |
2057 // Now store the result | |
2058 // | |
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2059 int field_offset = cache->f2_as_index(); |
0 | 2060 if (cache->is_volatile()) { |
2061 if (tos_type == itos) { | |
2062 obj->release_int_field_put(field_offset, STACK_INT(-1)); | |
2063 } else if (tos_type == atos) { | |
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2064 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2065 obj->release_obj_field_put(field_offset, STACK_OBJECT(-1)); |
2066 } else if (tos_type == btos) { | |
2067 obj->release_byte_field_put(field_offset, STACK_INT(-1)); | |
2068 } else if (tos_type == ltos) { | |
2069 obj->release_long_field_put(field_offset, STACK_LONG(-1)); | |
2070 } else if (tos_type == ctos) { | |
2071 obj->release_char_field_put(field_offset, STACK_INT(-1)); | |
2072 } else if (tos_type == stos) { | |
2073 obj->release_short_field_put(field_offset, STACK_INT(-1)); | |
2074 } else if (tos_type == ftos) { | |
2075 obj->release_float_field_put(field_offset, STACK_FLOAT(-1)); | |
2076 } else { | |
2077 obj->release_double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2078 } | |
2079 OrderAccess::storeload(); | |
2080 } else { | |
2081 if (tos_type == itos) { | |
2082 obj->int_field_put(field_offset, STACK_INT(-1)); | |
2083 } else if (tos_type == atos) { | |
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2084 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2085 obj->obj_field_put(field_offset, STACK_OBJECT(-1)); |
2086 } else if (tos_type == btos) { | |
2087 obj->byte_field_put(field_offset, STACK_INT(-1)); | |
2088 } else if (tos_type == ltos) { | |
2089 obj->long_field_put(field_offset, STACK_LONG(-1)); | |
2090 } else if (tos_type == ctos) { | |
2091 obj->char_field_put(field_offset, STACK_INT(-1)); | |
2092 } else if (tos_type == stos) { | |
2093 obj->short_field_put(field_offset, STACK_INT(-1)); | |
2094 } else if (tos_type == ftos) { | |
2095 obj->float_field_put(field_offset, STACK_FLOAT(-1)); | |
2096 } else { | |
2097 obj->double_field_put(field_offset, STACK_DOUBLE(-1)); | |
2098 } | |
2099 } | |
2100 | |
2101 UPDATE_PC_AND_TOS_AND_CONTINUE(3, count); | |
2102 } | |
2103 | |
2104 CASE(_new): { | |
2105 u2 index = Bytes::get_Java_u2(pc+1); | |
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2106 ConstantPool* constants = istate->method()->constants(); |
0 | 2107 if (!constants->tag_at(index).is_unresolved_klass()) { |
2108 // Make sure klass is initialized and doesn't have a finalizer | |
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2109 Klass* entry = constants->slot_at(index).get_klass(); |
0 | 2110 assert(entry->is_klass(), "Should be resolved klass"); |
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2111 Klass* k_entry = (Klass*) entry; |
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2112 assert(k_entry->oop_is_instance(), "Should be InstanceKlass"); |
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2113 InstanceKlass* ik = (InstanceKlass*) k_entry; |
0 | 2114 if ( ik->is_initialized() && ik->can_be_fastpath_allocated() ) { |
2115 size_t obj_size = ik->size_helper(); | |
2116 oop result = NULL; | |
2117 // If the TLAB isn't pre-zeroed then we'll have to do it | |
2118 bool need_zero = !ZeroTLAB; | |
2119 if (UseTLAB) { | |
2120 result = (oop) THREAD->tlab().allocate(obj_size); | |
2121 } | |
2122 if (result == NULL) { | |
2123 need_zero = true; | |
2124 // Try allocate in shared eden | |
2125 retry: | |
2126 HeapWord* compare_to = *Universe::heap()->top_addr(); | |
2127 HeapWord* new_top = compare_to + obj_size; | |
2128 if (new_top <= *Universe::heap()->end_addr()) { | |
2129 if (Atomic::cmpxchg_ptr(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) { | |
2130 goto retry; | |
2131 } | |
2132 result = (oop) compare_to; | |
2133 } | |
2134 } | |
2135 if (result != NULL) { | |
2136 // Initialize object (if nonzero size and need) and then the header | |
2137 if (need_zero ) { | |
2138 HeapWord* to_zero = (HeapWord*) result + sizeof(oopDesc) / oopSize; | |
2139 obj_size -= sizeof(oopDesc) / oopSize; | |
2140 if (obj_size > 0 ) { | |
2141 memset(to_zero, 0, obj_size * HeapWordSize); | |
2142 } | |
2143 } | |
2144 if (UseBiasedLocking) { | |
2145 result->set_mark(ik->prototype_header()); | |
2146 } else { | |
2147 result->set_mark(markOopDesc::prototype()); | |
2148 } | |
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2149 result->set_klass_gap(0); |
0 | 2150 result->set_klass(k_entry); |
2151 SET_STACK_OBJECT(result, 0); | |
2152 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2153 } | |
2154 } | |
2155 } | |
2156 // Slow case allocation | |
2157 CALL_VM(InterpreterRuntime::_new(THREAD, METHOD->constants(), index), | |
2158 handle_exception); | |
2159 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
2160 THREAD->set_vm_result(NULL); | |
2161 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 1); | |
2162 } | |
2163 CASE(_anewarray): { | |
2164 u2 index = Bytes::get_Java_u2(pc+1); | |
2165 jint size = STACK_INT(-1); | |
2166 CALL_VM(InterpreterRuntime::anewarray(THREAD, METHOD->constants(), index, size), | |
2167 handle_exception); | |
2168 SET_STACK_OBJECT(THREAD->vm_result(), -1); | |
2169 THREAD->set_vm_result(NULL); | |
2170 UPDATE_PC_AND_CONTINUE(3); | |
2171 } | |
2172 CASE(_multianewarray): { | |
2173 jint dims = *(pc+3); | |
2174 jint size = STACK_INT(-1); | |
2175 // stack grows down, dimensions are up! | |
2176 jint *dimarray = | |
1509 | 2177 (jint*)&topOfStack[dims * Interpreter::stackElementWords+ |
2178 Interpreter::stackElementWords-1]; | |
0 | 2179 //adjust pointer to start of stack element |
2180 CALL_VM(InterpreterRuntime::multianewarray(THREAD, dimarray), | |
2181 handle_exception); | |
2182 SET_STACK_OBJECT(THREAD->vm_result(), -dims); | |
2183 THREAD->set_vm_result(NULL); | |
2184 UPDATE_PC_AND_TOS_AND_CONTINUE(4, -(dims-1)); | |
2185 } | |
2186 CASE(_checkcast): | |
2187 if (STACK_OBJECT(-1) != NULL) { | |
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2188 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2189 u2 index = Bytes::get_Java_u2(pc+1); |
2190 if (ProfileInterpreter) { | |
2191 // needs Profile_checkcast QQQ | |
2192 ShouldNotReachHere(); | |
2193 } | |
2194 // Constant pool may have actual klass or unresolved klass. If it is | |
2195 // unresolved we must resolve it | |
2196 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { | |
2197 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2198 } | |
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2199 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2200 Klass* objKlassOop = STACK_OBJECT(-1)->klass(); //ebx |
0 | 2201 // |
2202 // Check for compatibilty. This check must not GC!! | |
2203 // Seems way more expensive now that we must dispatch | |
2204 // | |
2205 if (objKlassOop != klassOf && | |
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2206 !objKlassOop->is_subtype_of(klassOf)) { |
0 | 2207 ResourceMark rm(THREAD); |
6983 | 2208 const char* objName = objKlassOop->external_name(); |
2209 const char* klassName = klassOf->external_name(); | |
0 | 2210 char* message = SharedRuntime::generate_class_cast_message( |
2211 objName, klassName); | |
2212 VM_JAVA_ERROR(vmSymbols::java_lang_ClassCastException(), message); | |
2213 } | |
2214 } else { | |
2215 if (UncommonNullCast) { | |
2216 // istate->method()->set_null_cast_seen(); | |
2217 // [RGV] Not sure what to do here! | |
2218 | |
2219 } | |
2220 } | |
2221 UPDATE_PC_AND_CONTINUE(3); | |
2222 | |
2223 CASE(_instanceof): | |
2224 if (STACK_OBJECT(-1) == NULL) { | |
2225 SET_STACK_INT(0, -1); | |
2226 } else { | |
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2227 VERIFY_OOP(STACK_OBJECT(-1)); |
0 | 2228 u2 index = Bytes::get_Java_u2(pc+1); |
2229 // Constant pool may have actual klass or unresolved klass. If it is | |
2230 // unresolved we must resolve it | |
2231 if (METHOD->constants()->tag_at(index).is_unresolved_klass()) { | |
2232 CALL_VM(InterpreterRuntime::quicken_io_cc(THREAD), handle_exception); | |
2233 } | |
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2234 Klass* klassOf = (Klass*) METHOD->constants()->slot_at(index).get_klass(); |
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2235 Klass* objKlassOop = STACK_OBJECT(-1)->klass(); |
0 | 2236 // |
2237 // Check for compatibilty. This check must not GC!! | |
2238 // Seems way more expensive now that we must dispatch | |
2239 // | |
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2240 if ( objKlassOop == klassOf || objKlassOop->is_subtype_of(klassOf)) { |
0 | 2241 SET_STACK_INT(1, -1); |
2242 } else { | |
2243 SET_STACK_INT(0, -1); | |
2244 } | |
2245 } | |
2246 UPDATE_PC_AND_CONTINUE(3); | |
2247 | |
2248 CASE(_ldc_w): | |
2249 CASE(_ldc): | |
2250 { | |
2251 u2 index; | |
2252 bool wide = false; | |
2253 int incr = 2; // frequent case | |
2254 if (opcode == Bytecodes::_ldc) { | |
2255 index = pc[1]; | |
2256 } else { | |
2257 index = Bytes::get_Java_u2(pc+1); | |
2258 incr = 3; | |
2259 wide = true; | |
2260 } | |
2261 | |
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2262 ConstantPool* constants = METHOD->constants(); |
0 | 2263 switch (constants->tag_at(index).value()) { |
2264 case JVM_CONSTANT_Integer: | |
2265 SET_STACK_INT(constants->int_at(index), 0); | |
2266 break; | |
2267 | |
2268 case JVM_CONSTANT_Float: | |
2269 SET_STACK_FLOAT(constants->float_at(index), 0); | |
2270 break; | |
2271 | |
2272 case JVM_CONSTANT_String: | |
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2273 { |
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2274 oop result = constants->resolved_references()->obj_at(index); |
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2275 if (result == NULL) { |
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2276 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), handle_exception); |
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2277 SET_STACK_OBJECT(THREAD->vm_result(), 0); |
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2278 THREAD->set_vm_result(NULL); |
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2279 } else { |
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2280 VERIFY_OOP(result); |
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2281 SET_STACK_OBJECT(result, 0); |
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2282 } |
0 | 2283 break; |
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2284 } |
0 | 2285 |
2286 case JVM_CONSTANT_Class: | |
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2287 VERIFY_OOP(constants->resolved_klass_at(index)->java_mirror()); |
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2288 SET_STACK_OBJECT(constants->resolved_klass_at(index)->java_mirror(), 0); |
0 | 2289 break; |
2290 | |
2291 case JVM_CONSTANT_UnresolvedClass: | |
2292 case JVM_CONSTANT_UnresolvedClassInError: | |
2293 CALL_VM(InterpreterRuntime::ldc(THREAD, wide), handle_exception); | |
2294 SET_STACK_OBJECT(THREAD->vm_result(), 0); | |
2295 THREAD->set_vm_result(NULL); | |
2296 break; | |
2297 | |
2298 default: ShouldNotReachHere(); | |
2299 } | |
2300 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); | |
2301 } | |
2302 | |
2303 CASE(_ldc2_w): | |
2304 { | |
2305 u2 index = Bytes::get_Java_u2(pc+1); | |
2306 | |
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2307 ConstantPool* constants = METHOD->constants(); |
0 | 2308 switch (constants->tag_at(index).value()) { |
2309 | |
2310 case JVM_CONSTANT_Long: | |
2311 SET_STACK_LONG(constants->long_at(index), 1); | |
2312 break; | |
2313 | |
2314 case JVM_CONSTANT_Double: | |
2315 SET_STACK_DOUBLE(constants->double_at(index), 1); | |
2316 break; | |
2317 default: ShouldNotReachHere(); | |
2318 } | |
2319 UPDATE_PC_AND_TOS_AND_CONTINUE(3, 2); | |
2320 } | |
2321 | |
2480 | 2322 CASE(_fast_aldc_w): |
2323 CASE(_fast_aldc): { | |
2324 u2 index; | |
2325 int incr; | |
2326 if (opcode == Bytecodes::_fast_aldc) { | |
2327 index = pc[1]; | |
2328 incr = 2; | |
2329 } else { | |
2330 index = Bytes::get_native_u2(pc+1); | |
2331 incr = 3; | |
2332 } | |
2333 | |
2334 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
2335 // This kind of CP cache entry does not need to match the flags byte, because | |
2336 // there is a 1-1 relation between bytecode type and CP entry type. | |
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2337 ConstantPool* constants = METHOD->constants(); |
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2338 oop result = constants->resolved_references()->obj_at(index); |
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2339 if (result == NULL) { |
2480 | 2340 CALL_VM(InterpreterRuntime::resolve_ldc(THREAD, (Bytecodes::Code) opcode), |
2341 handle_exception); | |
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2342 result = THREAD->vm_result(); |
2480 | 2343 } |
2344 | |
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2345 VERIFY_OOP(result); |
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2346 SET_STACK_OBJECT(result, 0); |
2480 | 2347 UPDATE_PC_AND_TOS_AND_CONTINUE(incr, 1); |
2348 } | |
2349 | |
2350 CASE(_invokedynamic): { | |
6926 | 2351 |
2480 | 2352 if (!EnableInvokeDynamic) { |
2353 // We should not encounter this bytecode if !EnableInvokeDynamic. | |
2354 // The verifier will stop it. However, if we get past the verifier, | |
2355 // this will stop the thread in a reasonable way, without crashing the JVM. | |
2356 CALL_VM(InterpreterRuntime::throw_IncompatibleClassChangeError(THREAD), | |
2357 handle_exception); | |
2358 ShouldNotReachHere(); | |
2359 } | |
2360 | |
6926 | 2361 u4 index = Bytes::get_native_u4(pc+1); |
2362 ConstantPoolCacheEntry* cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); | |
2480 | 2363 |
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2364 // We are resolved if the resolved_references field contains a non-null object (CallSite, etc.) |
2480 | 2365 // This kind of CP cache entry does not need to match the flags byte, because |
2366 // there is a 1-1 relation between bytecode type and CP entry type. | |
6926 | 2367 if (! cache->is_resolved((Bytecodes::Code) opcode)) { |
2480 | 2368 CALL_VM(InterpreterRuntime::resolve_invokedynamic(THREAD), |
2369 handle_exception); | |
6926 | 2370 cache = cp->constant_pool()->invokedynamic_cp_cache_entry_at(index); |
2371 } | |
2372 | |
2373 Method* method = cache->f1_as_method(); | |
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2374 if (VerifyOops) method->verify(); |
6926 | 2375 |
2376 if (cache->has_appendix()) { | |
2377 ConstantPool* constants = METHOD->constants(); | |
2378 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2379 MORE_STACK(1); | |
2380 } | |
2381 | |
2382 istate->set_msg(call_method); | |
2383 istate->set_callee(method); | |
2384 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2385 istate->set_bcp_advance(5); | |
2386 | |
2387 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2388 } | |
2389 | |
2390 CASE(_invokehandle): { | |
2391 | |
2392 if (!EnableInvokeDynamic) { | |
2393 ShouldNotReachHere(); | |
2480 | 2394 } |
2395 | |
6926 | 2396 u2 index = Bytes::get_native_u2(pc+1); |
2397 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2398 | |
2399 if (! cache->is_resolved((Bytecodes::Code) opcode)) { | |
2400 CALL_VM(InterpreterRuntime::resolve_invokehandle(THREAD), | |
2401 handle_exception); | |
2402 cache = cp->entry_at(index); | |
2403 } | |
2404 | |
2405 Method* method = cache->f1_as_method(); | |
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2406 if (VerifyOops) method->verify(); |
6926 | 2407 |
2408 if (cache->has_appendix()) { | |
2409 ConstantPool* constants = METHOD->constants(); | |
2410 SET_STACK_OBJECT(cache->appendix_if_resolved(constants), 0); | |
2411 MORE_STACK(1); | |
2412 } | |
2413 | |
2414 istate->set_msg(call_method); | |
2415 istate->set_callee(method); | |
2416 istate->set_callee_entry_point(method->from_interpreted_entry()); | |
2417 istate->set_bcp_advance(3); | |
2480 | 2418 |
2419 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2420 } | |
2421 | |
0 | 2422 CASE(_invokeinterface): { |
2423 u2 index = Bytes::get_native_u2(pc+1); | |
2424 | |
2425 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2426 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2427 | |
2428 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2429 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2430 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2431 handle_exception); | |
2432 cache = cp->entry_at(index); | |
2433 } | |
2434 | |
2435 istate->set_msg(call_method); | |
2436 | |
2437 // Special case of invokeinterface called for virtual method of | |
2438 // java.lang.Object. See cpCacheOop.cpp for details. | |
2439 // This code isn't produced by javac, but could be produced by | |
2440 // another compliant java compiler. | |
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2441 if (cache->is_forced_virtual()) { |
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2442 Method* callee; |
0 | 2443 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); |
2444 if (cache->is_vfinal()) { | |
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2445 callee = cache->f2_as_vfinal_method(); |
0 | 2446 } else { |
2447 // get receiver | |
2448 int parms = cache->parameter_size(); | |
2449 // Same comments as invokevirtual apply here | |
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2450 VERIFY_OOP(STACK_OBJECT(-parms)); |
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2451 InstanceKlass* rcvrKlass = (InstanceKlass*) |
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2452 STACK_OBJECT(-parms)->klass(); |
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2453 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
0 | 2454 } |
2455 istate->set_callee(callee); | |
2456 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2457 #ifdef VM_JVMTI | |
2458 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2459 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2460 } | |
2461 #endif /* VM_JVMTI */ | |
2462 istate->set_bcp_advance(5); | |
2463 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2464 } | |
2465 | |
2466 // this could definitely be cleaned up QQQ | |
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2467 Method* callee; |
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2468 Klass* iclass = cache->f1_as_klass(); |
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2469 // InstanceKlass* interface = (InstanceKlass*) iclass; |
0 | 2470 // get receiver |
2471 int parms = cache->parameter_size(); | |
2472 oop rcvr = STACK_OBJECT(-parms); | |
2473 CHECK_NULL(rcvr); | |
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2474 InstanceKlass* int2 = (InstanceKlass*) rcvr->klass(); |
0 | 2475 itableOffsetEntry* ki = (itableOffsetEntry*) int2->start_of_itable(); |
2476 int i; | |
2477 for ( i = 0 ; i < int2->itable_length() ; i++, ki++ ) { | |
2478 if (ki->interface_klass() == iclass) break; | |
2479 } | |
2480 // If the interface isn't found, this class doesn't implement this | |
2481 // interface. The link resolver checks this but only for the first | |
2482 // time this interface is called. | |
2483 if (i == int2->itable_length()) { | |
2484 VM_JAVA_ERROR(vmSymbols::java_lang_IncompatibleClassChangeError(), ""); | |
2485 } | |
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2486 int mindex = cache->f2_as_index(); |
0 | 2487 itableMethodEntry* im = ki->first_method_entry(rcvr->klass()); |
2488 callee = im[mindex].method(); | |
2489 if (callee == NULL) { | |
2490 VM_JAVA_ERROR(vmSymbols::java_lang_AbstractMethodError(), ""); | |
2491 } | |
2492 | |
2493 istate->set_callee(callee); | |
2494 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2495 #ifdef VM_JVMTI | |
2496 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2497 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2498 } | |
2499 #endif /* VM_JVMTI */ | |
2500 istate->set_bcp_advance(5); | |
2501 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2502 } | |
2503 | |
2504 CASE(_invokevirtual): | |
2505 CASE(_invokespecial): | |
2506 CASE(_invokestatic): { | |
2507 u2 index = Bytes::get_native_u2(pc+1); | |
2508 | |
2509 ConstantPoolCacheEntry* cache = cp->entry_at(index); | |
2510 // QQQ Need to make this as inlined as possible. Probably need to split all the bytecode cases | |
2511 // out so c++ compiler has a chance for constant prop to fold everything possible away. | |
2512 | |
2513 if (!cache->is_resolved((Bytecodes::Code)opcode)) { | |
2514 CALL_VM(InterpreterRuntime::resolve_invoke(THREAD, (Bytecodes::Code)opcode), | |
2515 handle_exception); | |
2516 cache = cp->entry_at(index); | |
2517 } | |
2518 | |
2519 istate->set_msg(call_method); | |
2520 { | |
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2521 Method* callee; |
0 | 2522 if ((Bytecodes::Code)opcode == Bytecodes::_invokevirtual) { |
2523 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
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2524 if (cache->is_vfinal()) callee = cache->f2_as_vfinal_method(); |
0 | 2525 else { |
2526 // get receiver | |
2527 int parms = cache->parameter_size(); | |
2528 // this works but needs a resourcemark and seems to create a vtable on every call: | |
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2529 // Method* callee = rcvr->klass()->vtable()->method_at(cache->f2_as_index()); |
0 | 2530 // |
2531 // this fails with an assert | |
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2532 // InstanceKlass* rcvrKlass = InstanceKlass::cast(STACK_OBJECT(-parms)->klass()); |
0 | 2533 // but this works |
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2534 VERIFY_OOP(STACK_OBJECT(-parms)); |
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2535 InstanceKlass* rcvrKlass = (InstanceKlass*) STACK_OBJECT(-parms)->klass(); |
0 | 2536 /* |
2537 Executing this code in java.lang.String: | |
2538 public String(char value[]) { | |
2539 this.count = value.length; | |
2540 this.value = (char[])value.clone(); | |
2541 } | |
2542 | |
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2543 a find on rcvr->klass() reports: |
0 | 2544 {type array char}{type array class} |
2545 - klass: {other class} | |
2546 | |
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2547 but using InstanceKlass::cast(STACK_OBJECT(-parms)->klass()) causes in assertion failure |
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2548 because rcvr->klass()->oop_is_instance() == 0 |
0 | 2549 However it seems to have a vtable in the right location. Huh? |
2550 | |
2551 */ | |
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2552 callee = (Method*) rcvrKlass->start_of_vtable()[ cache->f2_as_index()]; |
0 | 2553 } |
2554 } else { | |
2555 if ((Bytecodes::Code)opcode == Bytecodes::_invokespecial) { | |
2556 CHECK_NULL(STACK_OBJECT(-(cache->parameter_size()))); | |
2557 } | |
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2558 callee = cache->f1_as_method(); |
0 | 2559 } |
2560 | |
2561 istate->set_callee(callee); | |
2562 istate->set_callee_entry_point(callee->from_interpreted_entry()); | |
2563 #ifdef VM_JVMTI | |
2564 if (JvmtiExport::can_post_interpreter_events() && THREAD->is_interp_only_mode()) { | |
2565 istate->set_callee_entry_point(callee->interpreter_entry()); | |
2566 } | |
2567 #endif /* VM_JVMTI */ | |
2568 istate->set_bcp_advance(3); | |
2569 UPDATE_PC_AND_RETURN(0); // I'll be back... | |
2570 } | |
2571 } | |
2572 | |
2573 /* Allocate memory for a new java object. */ | |
2574 | |
2575 CASE(_newarray): { | |
2576 BasicType atype = (BasicType) *(pc+1); | |
2577 jint size = STACK_INT(-1); | |
2578 CALL_VM(InterpreterRuntime::newarray(THREAD, atype, size), | |
2579 handle_exception); | |
2580 SET_STACK_OBJECT(THREAD->vm_result(), -1); | |
2581 THREAD->set_vm_result(NULL); | |
2582 | |
2583 UPDATE_PC_AND_CONTINUE(2); | |
2584 } | |
2585 | |
2586 /* Throw an exception. */ | |
2587 | |
2588 CASE(_athrow): { | |
2589 oop except_oop = STACK_OBJECT(-1); | |
2590 CHECK_NULL(except_oop); | |
2591 // set pending_exception so we use common code | |
2592 THREAD->set_pending_exception(except_oop, NULL, 0); | |
2593 goto handle_exception; | |
2594 } | |
2595 | |
2596 /* goto and jsr. They are exactly the same except jsr pushes | |
2597 * the address of the next instruction first. | |
2598 */ | |
2599 | |
2600 CASE(_jsr): { | |
2601 /* push bytecode index on stack */ | |
2602 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 3), 0); | |
2603 MORE_STACK(1); | |
2604 /* FALL THROUGH */ | |
2605 } | |
2606 | |
2607 CASE(_goto): | |
2608 { | |
2609 int16_t offset = (int16_t)Bytes::get_Java_u2(pc + 1); | |
2610 address branch_pc = pc; | |
2611 UPDATE_PC(offset); | |
2612 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2613 CONTINUE; | |
2614 } | |
2615 | |
2616 CASE(_jsr_w): { | |
2617 /* push return address on the stack */ | |
2618 SET_STACK_ADDR(((address)pc - (intptr_t)(istate->method()->code_base()) + 5), 0); | |
2619 MORE_STACK(1); | |
2620 /* FALL THROUGH */ | |
2621 } | |
2622 | |
2623 CASE(_goto_w): | |
2624 { | |
2625 int32_t offset = Bytes::get_Java_u4(pc + 1); | |
2626 address branch_pc = pc; | |
2627 UPDATE_PC(offset); | |
2628 DO_BACKEDGE_CHECKS(offset, branch_pc); | |
2629 CONTINUE; | |
2630 } | |
2631 | |
2632 /* return from a jsr or jsr_w */ | |
2633 | |
2634 CASE(_ret): { | |
2635 pc = istate->method()->code_base() + (intptr_t)(LOCALS_ADDR(pc[1])); | |
2636 UPDATE_PC_AND_CONTINUE(0); | |
2637 } | |
2638 | |
2639 /* debugger breakpoint */ | |
2640 | |
2641 CASE(_breakpoint): { | |
2642 Bytecodes::Code original_bytecode; | |
2643 DECACHE_STATE(); | |
2644 SET_LAST_JAVA_FRAME(); | |
2645 original_bytecode = InterpreterRuntime::get_original_bytecode_at(THREAD, | |
2646 METHOD, pc); | |
2647 RESET_LAST_JAVA_FRAME(); | |
2648 CACHE_STATE(); | |
2649 if (THREAD->has_pending_exception()) goto handle_exception; | |
2650 CALL_VM(InterpreterRuntime::_breakpoint(THREAD, METHOD, pc), | |
2651 handle_exception); | |
2652 | |
2653 opcode = (jubyte)original_bytecode; | |
2654 goto opcode_switch; | |
2655 } | |
2656 | |
2657 DEFAULT: | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2658 fatal(err_msg("Unimplemented opcode %d = %s", opcode, |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1347
diff
changeset
|
2659 Bytecodes::name((Bytecodes::Code)opcode))); |
0 | 2660 goto finish; |
2661 | |
2662 } /* switch(opc) */ | |
2663 | |
2664 | |
2665 #ifdef USELABELS | |
2666 check_for_exception: | |
2667 #endif | |
2668 { | |
2669 if (!THREAD->has_pending_exception()) { | |
2670 CONTINUE; | |
2671 } | |
2672 /* We will be gcsafe soon, so flush our state. */ | |
2673 DECACHE_PC(); | |
2674 goto handle_exception; | |
2675 } | |
2676 do_continue: ; | |
2677 | |
2678 } /* while (1) interpreter loop */ | |
2679 | |
2680 | |
2681 // An exception exists in the thread state see whether this activation can handle it | |
2682 handle_exception: { | |
2683 | |
2684 HandleMarkCleaner __hmc(THREAD); | |
2685 Handle except_oop(THREAD, THREAD->pending_exception()); | |
2686 // Prevent any subsequent HandleMarkCleaner in the VM | |
2687 // from freeing the except_oop handle. | |
2688 HandleMark __hm(THREAD); | |
2689 | |
2690 THREAD->clear_pending_exception(); | |
2691 assert(except_oop(), "No exception to process"); | |
2692 intptr_t continuation_bci; | |
2693 // expression stack is emptied | |
1509 | 2694 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
0 | 2695 CALL_VM(continuation_bci = (intptr_t)InterpreterRuntime::exception_handler_for_exception(THREAD, except_oop()), |
2696 handle_exception); | |
2697 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2698 except_oop = THREAD->vm_result(); |
0 | 2699 THREAD->set_vm_result(NULL); |
2700 if (continuation_bci >= 0) { | |
2701 // Place exception on top of stack | |
2702 SET_STACK_OBJECT(except_oop(), 0); | |
2703 MORE_STACK(1); | |
2704 pc = METHOD->code_base() + continuation_bci; | |
2705 if (TraceExceptions) { | |
2706 ttyLocker ttyl; | |
2707 ResourceMark rm; | |
2708 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), except_oop()); | |
2709 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); | |
2710 tty->print_cr(" at bci %d, continuing at %d for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2711 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2712 continuation_bci, THREAD); |
2713 } | |
2714 // for AbortVMOnException flag | |
2715 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
2716 goto run; | |
2717 } | |
2718 if (TraceExceptions) { | |
2719 ttyLocker ttyl; | |
2720 ResourceMark rm; | |
2721 tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", except_oop->print_value_string(), except_oop()); | |
2722 tty->print_cr(" thrown in interpreter method <%s>", METHOD->print_value_string()); | |
2723 tty->print_cr(" at bci %d, unwinding for thread " INTPTR_FORMAT, | |
14417
f3806614494a
8024469: PPC64 (part 202): cppInterpreter: support for OSR.
goetz
parents:
14411
diff
changeset
|
2724 istate->bcp() - (intptr_t)METHOD->code_base(), |
0 | 2725 THREAD); |
2726 } | |
2727 // for AbortVMOnException flag | |
2728 NOT_PRODUCT(Exceptions::debug_check_abort(except_oop)); | |
2729 // No handler in this activation, unwind and try again | |
2730 THREAD->set_pending_exception(except_oop(), NULL, 0); | |
2731 goto handle_return; | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2732 } // handle_exception: |
0 | 2733 |
2734 // Return from an interpreter invocation with the result of the interpretation | |
2735 // on the top of the Java Stack (or a pending exception) | |
2736 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2737 handle_Pop_Frame: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2738 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2739 // 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
|
2740 // 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
|
2741 // 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
|
2742 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2743 istate->set_msg(popping_frame); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2744 // 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
|
2745 // 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
|
2746 THREAD->clr_pop_frame_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2747 // 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
|
2748 THREAD->set_pop_frame_in_process(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2749 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2750 goto handle_return; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2751 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2752 } // handle_Pop_Frame |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2753 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2754 // 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
|
2755 // 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
|
2756 handle_Early_Return: { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2757 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2758 istate->set_msg(early_return); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2759 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2760 // Clear expression stack. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2761 topOfStack = istate->stack_base() - Interpreter::stackElementWords; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2762 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2763 JvmtiThreadState *ts = THREAD->jvmti_thread_state(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2764 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2765 // Push the value to be returned. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2766 switch (istate->method()->result_type()) { |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2767 case T_BOOLEAN: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2768 case T_SHORT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2769 case T_BYTE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2770 case T_CHAR: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2771 case T_INT: |
14401
0014add32e54
8020121: PPC64: fix build in cppInterpreter after 8019519
goetz
parents:
14400
diff
changeset
|
2772 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
|
2773 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2774 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2775 case T_LONG: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2776 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
|
2777 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2778 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2779 case T_FLOAT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2780 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
|
2781 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2782 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2783 case T_DOUBLE: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2784 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
|
2785 MORE_STACK(2); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2786 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2787 case T_ARRAY: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2788 case T_OBJECT: |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2789 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
|
2790 MORE_STACK(1); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2791 break; |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2792 } |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2793 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2794 ts->clr_earlyret_value(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2795 ts->set_earlyret_oop(NULL); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2796 ts->clr_earlyret_pending(); |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2797 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2798 // Fall through to handle_return. |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2799 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2800 } // handle_Early_Return |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2801 |
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2802 handle_return: { |
0 | 2803 DECACHE_STATE(); |
2804 | |
14400
bfd9d884693d
8019519: PPC64 (part 105): C interpreter: implement support for jvmti early return.
goetz
parents:
14399
diff
changeset
|
2805 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
|
2806 bool suppress_exit_event = THREAD->has_pending_exception() || istate->msg() == popping_frame; |
0 | 2807 Handle original_exception(THREAD, THREAD->pending_exception()); |
2808 Handle illegal_state_oop(THREAD, NULL); | |
2809 | |
2810 // We'd like a HandleMark here to prevent any subsequent HandleMarkCleaner | |
2811 // in any following VM entries from freeing our live handles, but illegal_state_oop | |
2812 // isn't really allocated yet and so doesn't become live until later and | |
2813 // in unpredicatable places. Instead we must protect the places where we enter the | |
2814 // VM. It would be much simpler (and safer) if we could allocate a real handle with | |
2815 // a NULL oop in it and then overwrite the oop later as needed. This isn't | |
2816 // unfortunately isn't possible. | |
2817 | |
2818 THREAD->clear_pending_exception(); | |
2819 | |
2820 // | |
2821 // As far as we are concerned we have returned. If we have a pending exception | |
2822 // that will be returned as this invocation's result. However if we get any | |
2823 // exception(s) while checking monitor state one of those IllegalMonitorStateExceptions | |
2824 // will be our final result (i.e. monitor exception trumps a pending exception). | |
2825 // | |
2826 | |
2827 // If we never locked the method (or really passed the point where we would have), | |
2828 // there is no need to unlock it (or look for other monitors), since that | |
2829 // could not have happened. | |
2830 | |
2831 if (THREAD->do_not_unlock()) { | |
2832 | |
2833 // Never locked, reset the flag now because obviously any caller must | |
2834 // have passed their point of locking for us to have gotten here. | |
2835 | |
2836 THREAD->clr_do_not_unlock(); | |
2837 } else { | |
2838 // At this point we consider that we have returned. We now check that the | |
2839 // locks were properly block structured. If we find that they were not | |
2840 // used properly we will return with an illegal monitor exception. | |
2841 // The exception is checked by the caller not the callee since this | |
2842 // checking is considered to be part of the invocation and therefore | |
2843 // in the callers scope (JVM spec 8.13). | |
2844 // | |
2845 // Another weird thing to watch for is if the method was locked | |
2846 // recursively and then not exited properly. This means we must | |
2847 // examine all the entries in reverse time(and stack) order and | |
2848 // unlock as we find them. If we find the method monitor before | |
2849 // we are at the initial entry then we should throw an exception. | |
2850 // It is not clear the template based interpreter does this | |
2851 // correctly | |
2852 | |
2853 BasicObjectLock* base = istate->monitor_base(); | |
2854 BasicObjectLock* end = (BasicObjectLock*) istate->stack_base(); | |
2855 bool method_unlock_needed = METHOD->is_synchronized(); | |
2856 // We know the initial monitor was used for the method don't check that | |
2857 // slot in the loop | |
2858 if (method_unlock_needed) base--; | |
2859 | |
2860 // Check all the monitors to see they are unlocked. Install exception if found to be locked. | |
2861 while (end < base) { | |
2862 oop lockee = end->obj(); | |
2863 if (lockee != NULL) { | |
2864 BasicLock* lock = end->lock(); | |
2865 markOop header = lock->displaced_header(); | |
2866 end->set_obj(NULL); | |
14395
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2867 |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2868 if (!lockee->mark()->has_bias_pattern()) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2869 // 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
|
2870 if (header != NULL) { |
48d3d0eb193b
8017317: PPC64 (part 7): cppInterpreter: implement support for biased locking
goetz
parents:
10393
diff
changeset
|
2871 if (Atomic::cmpxchg_ptr(header, lockee->mark_addr(), lock) != lock) { |
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2872 // restore object for the slow case |
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2873 end->set_obj(lockee); |
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2874 { |
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2875 // Prevent any HandleMarkCleaner from freeing our live handles |
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2876 HandleMark __hm(THREAD); |
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2877 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, end)); |
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2878 } |
0 | 2879 } |
2880 } | |
2881 } | |
2882 // One error is plenty | |
2883 if (illegal_state_oop() == NULL && !suppress_error) { | |
2884 { | |
2885 // Prevent any HandleMarkCleaner from freeing our live handles | |
2886 HandleMark __hm(THREAD); | |
2887 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
2888 } | |
2889 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
2890 illegal_state_oop = THREAD->pending_exception(); | |
2891 THREAD->clear_pending_exception(); | |
2892 } | |
2893 } | |
2894 end++; | |
2895 } | |
2896 // Unlock the method if needed | |
2897 if (method_unlock_needed) { | |
2898 if (base->obj() == NULL) { | |
2899 // The method is already unlocked this is not good. | |
2900 if (illegal_state_oop() == NULL && !suppress_error) { | |
2901 { | |
2902 // Prevent any HandleMarkCleaner from freeing our live handles | |
2903 HandleMark __hm(THREAD); | |
2904 CALL_VM_NOCHECK(InterpreterRuntime::throw_illegal_monitor_state_exception(THREAD)); | |
2905 } | |
2906 assert(THREAD->has_pending_exception(), "Lost our exception!"); | |
2907 illegal_state_oop = THREAD->pending_exception(); | |
2908 THREAD->clear_pending_exception(); | |
2909 } | |
2910 } else { | |
2911 // | |
2912 // The initial monitor is always used for the method | |
2913 // However if that slot is no longer the oop for the method it was unlocked | |
2914 // and reused by something that wasn't unlocked! | |
2915 // | |
2916 // deopt can come in with rcvr dead because c2 knows | |
2917 // its value is preserved in the monitor. So we can't use locals[0] at all | |
2918 // and must use first monitor slot. | |
2919 // | |
2920 oop rcvr = base->obj(); | |
2921 if (rcvr == NULL) { | |
2922 if (!suppress_error) { | |
2923 VM_JAVA_ERROR_NO_JUMP(vmSymbols::java_lang_NullPointerException(), ""); | |
2924 illegal_state_oop = THREAD->pending_exception(); | |
2925 THREAD->clear_pending_exception(); | |
2926 } | |
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2927 } else if (UseHeavyMonitors) { |
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2928 { |
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2929 // Prevent any HandleMarkCleaner from freeing our live handles. |
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2930 HandleMark __hm(THREAD); |
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2931 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
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2932 } |
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2933 if (THREAD->has_pending_exception()) { |
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2934 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
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2935 THREAD->clear_pending_exception(); |
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2936 } |
0 | 2937 } else { |
2938 BasicLock* lock = base->lock(); | |
2939 markOop header = lock->displaced_header(); | |
2940 base->set_obj(NULL); | |
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2941 |
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2942 if (!rcvr->mark()->has_bias_pattern()) { |
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2943 base->set_obj(NULL); |
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2944 // If it isn't recursive we either must swap old header or call the runtime |
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2945 if (header != NULL) { |
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2946 if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
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2947 // restore object for the slow case |
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2948 base->set_obj(rcvr); |
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2949 { |
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2950 // Prevent any HandleMarkCleaner from freeing our live handles |
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2951 HandleMark __hm(THREAD); |
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2952 CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(THREAD, base)); |
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2953 } |
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2954 if (THREAD->has_pending_exception()) { |
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2955 if (!suppress_error) illegal_state_oop = THREAD->pending_exception(); |
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2956 THREAD->clear_pending_exception(); |
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2957 } |
0 | 2958 } |
2959 } | |
2960 } | |
2961 } | |
2962 } | |
2963 } | |
2964 } | |
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2965 // Clear the do_not_unlock flag now. |
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2966 THREAD->clr_do_not_unlock(); |
0 | 2967 |
2968 // | |
2969 // Notify jvmti/jvmdi | |
2970 // | |
2971 // NOTE: we do not notify a method_exit if we have a pending exception, | |
2972 // including an exception we generate for unlocking checks. In the former | |
2973 // case, JVMDI has already been notified by our call for the exception handler | |
2974 // and in both cases as far as JVMDI is concerned we have already returned. | |
2975 // If we notify it again JVMDI will be all confused about how many frames | |
2976 // are still on the stack (4340444). | |
2977 // | |
2978 // NOTE Further! It turns out the the JVMTI spec in fact expects to see | |
2979 // method_exit events whenever we leave an activation unless it was done | |
2980 // for popframe. This is nothing like jvmdi. However we are passing the | |
2981 // tests at the moment (apparently because they are jvmdi based) so rather | |
2982 // than change this code and possibly fail tests we will leave it alone | |
2983 // (with this note) in anticipation of changing the vm and the tests | |
2984 // simultaneously. | |
2985 | |
2986 | |
2987 // | |
2988 suppress_exit_event = suppress_exit_event || illegal_state_oop() != NULL; | |
2989 | |
2990 | |
2991 | |
2992 #ifdef VM_JVMTI | |
2993 if (_jvmti_interp_events) { | |
2994 // Whenever JVMTI puts a thread in interp_only_mode, method | |
2995 // entry/exit events are sent for that thread to track stack depth. | |
2996 if ( !suppress_exit_event && THREAD->is_interp_only_mode() ) { | |
2997 { | |
2998 // Prevent any HandleMarkCleaner from freeing our live handles | |
2999 HandleMark __hm(THREAD); | |
3000 CALL_VM_NOCHECK(InterpreterRuntime::post_method_exit(THREAD)); | |
3001 } | |
3002 } | |
3003 } | |
3004 #endif /* VM_JVMTI */ | |
3005 | |
3006 // | |
3007 // See if we are returning any exception | |
3008 // A pending exception that was pending prior to a possible popping frame | |
3009 // overrides the popping frame. | |
3010 // | |
3011 assert(!suppress_error || suppress_error && illegal_state_oop() == NULL, "Error was not suppressed"); | |
3012 if (illegal_state_oop() != NULL || original_exception() != NULL) { | |
3013 // inform the frame manager we have no result | |
3014 istate->set_msg(throwing_exception); | |
3015 if (illegal_state_oop() != NULL) | |
3016 THREAD->set_pending_exception(illegal_state_oop(), NULL, 0); | |
3017 else | |
3018 THREAD->set_pending_exception(original_exception(), NULL, 0); | |
3019 UPDATE_PC_AND_RETURN(0); | |
3020 } | |
3021 | |
3022 if (istate->msg() == popping_frame) { | |
3023 // Make it simpler on the assembly code and set the message for the frame pop. | |
3024 // returns | |
3025 if (istate->prev() == NULL) { | |
3026 // We must be returning to a deoptimized frame (because popframe only happens between | |
3027 // two interpreted frames). We need to save the current arguments in C heap so that | |
3028 // the deoptimized frame when it restarts can copy the arguments to its expression | |
3029 // stack and re-execute the call. We also have to notify deoptimization that this | |
605 | 3030 // has occurred and to pick the preserved args copy them to the deoptimized frame's |
0 | 3031 // java expression stack. Yuck. |
3032 // | |
3033 THREAD->popframe_preserve_args(in_ByteSize(METHOD->size_of_parameters() * wordSize), | |
3034 LOCALS_SLOT(METHOD->size_of_parameters() - 1)); | |
3035 THREAD->set_popframe_condition_bit(JavaThread::popframe_force_deopt_reexecution_bit); | |
3036 } | |
14400
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3037 } else { |
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3038 istate->set_msg(return_from_method); |
0 | 3039 } |
1681
126ea7725993
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3040 |
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3041 // Normal return |
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3042 // Advance the pc and return to frame manager |
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3043 UPDATE_PC_AND_RETURN(1); |
0 | 3044 } /* handle_return: */ |
3045 | |
3046 // This is really a fatal error return | |
3047 | |
3048 finish: | |
3049 DECACHE_TOS(); | |
3050 DECACHE_PC(); | |
3051 | |
3052 return; | |
3053 } | |
3054 | |
3055 /* | |
3056 * All the code following this point is only produced once and is not present | |
3057 * in the JVMTI version of the interpreter | |
3058 */ | |
3059 | |
3060 #ifndef VM_JVMTI | |
3061 | |
3062 // This constructor should only be used to contruct the object to signal | |
3063 // interpreter initialization. All other instances should be created by | |
3064 // the frame manager. | |
3065 BytecodeInterpreter::BytecodeInterpreter(messages msg) { | |
3066 if (msg != initialize) ShouldNotReachHere(); | |
3067 _msg = msg; | |
3068 _self_link = this; | |
3069 _prev_link = NULL; | |
3070 } | |
3071 | |
3072 // Inline static functions for Java Stack and Local manipulation | |
3073 | |
3074 // The implementations are platform dependent. We have to worry about alignment | |
3075 // issues on some machines which can change on the same platform depending on | |
3076 // whether it is an LP64 machine also. | |
3077 address BytecodeInterpreter::stack_slot(intptr_t *tos, int offset) { | |
3078 return (address) tos[Interpreter::expr_index_at(-offset)]; | |
3079 } | |
3080 | |
3081 jint BytecodeInterpreter::stack_int(intptr_t *tos, int offset) { | |
3082 return *((jint*) &tos[Interpreter::expr_index_at(-offset)]); | |
3083 } | |
3084 | |
3085 jfloat BytecodeInterpreter::stack_float(intptr_t *tos, int offset) { | |
3086 return *((jfloat *) &tos[Interpreter::expr_index_at(-offset)]); | |
3087 } | |
3088 | |
3089 oop BytecodeInterpreter::stack_object(intptr_t *tos, int offset) { | |
3090 return (oop)tos [Interpreter::expr_index_at(-offset)]; | |
3091 } | |
3092 | |
3093 jdouble BytecodeInterpreter::stack_double(intptr_t *tos, int offset) { | |
3094 return ((VMJavaVal64*) &tos[Interpreter::expr_index_at(-offset)])->d; | |
3095 } | |
3096 | |
3097 jlong BytecodeInterpreter::stack_long(intptr_t *tos, int offset) { | |
3098 return ((VMJavaVal64 *) &tos[Interpreter::expr_index_at(-offset)])->l; | |
3099 } | |
3100 | |
3101 // only used for value types | |
3102 void BytecodeInterpreter::set_stack_slot(intptr_t *tos, address value, | |
3103 int offset) { | |
3104 *((address *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3105 } | |
3106 | |
3107 void BytecodeInterpreter::set_stack_int(intptr_t *tos, int value, | |
3108 int offset) { | |
3109 *((jint *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3110 } | |
3111 | |
3112 void BytecodeInterpreter::set_stack_float(intptr_t *tos, jfloat value, | |
3113 int offset) { | |
3114 *((jfloat *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3115 } | |
3116 | |
3117 void BytecodeInterpreter::set_stack_object(intptr_t *tos, oop value, | |
3118 int offset) { | |
3119 *((oop *)&tos[Interpreter::expr_index_at(-offset)]) = value; | |
3120 } | |
3121 | |
3122 // needs to be platform dep for the 32 bit platforms. | |
3123 void BytecodeInterpreter::set_stack_double(intptr_t *tos, jdouble value, | |
3124 int offset) { | |
3125 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = value; | |
3126 } | |
3127 | |
3128 void BytecodeInterpreter::set_stack_double_from_addr(intptr_t *tos, | |
3129 address addr, int offset) { | |
3130 (((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->d = | |
3131 ((VMJavaVal64*)addr)->d); | |
3132 } | |
3133 | |
3134 void BytecodeInterpreter::set_stack_long(intptr_t *tos, jlong value, | |
3135 int offset) { | |
3136 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3137 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = value; | |
3138 } | |
3139 | |
3140 void BytecodeInterpreter::set_stack_long_from_addr(intptr_t *tos, | |
3141 address addr, int offset) { | |
3142 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset+1)])->l = 0xdeedbeeb; | |
3143 ((VMJavaVal64*)&tos[Interpreter::expr_index_at(-offset)])->l = | |
3144 ((VMJavaVal64*)addr)->l; | |
3145 } | |
3146 | |
3147 // Locals | |
3148 | |
3149 address BytecodeInterpreter::locals_slot(intptr_t* locals, int offset) { | |
3150 return (address)locals[Interpreter::local_index_at(-offset)]; | |
3151 } | |
3152 jint BytecodeInterpreter::locals_int(intptr_t* locals, int offset) { | |
3153 return (jint)locals[Interpreter::local_index_at(-offset)]; | |
3154 } | |
3155 jfloat BytecodeInterpreter::locals_float(intptr_t* locals, int offset) { | |
3156 return (jfloat)locals[Interpreter::local_index_at(-offset)]; | |
3157 } | |
3158 oop BytecodeInterpreter::locals_object(intptr_t* locals, int offset) { | |
3159 return (oop)locals[Interpreter::local_index_at(-offset)]; | |
3160 } | |
3161 jdouble BytecodeInterpreter::locals_double(intptr_t* locals, int offset) { | |
3162 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d; | |
3163 } | |
3164 jlong BytecodeInterpreter::locals_long(intptr_t* locals, int offset) { | |
3165 return ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l; | |
3166 } | |
3167 | |
3168 // Returns the address of locals value. | |
3169 address BytecodeInterpreter::locals_long_at(intptr_t* locals, int offset) { | |
3170 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3171 } | |
3172 address BytecodeInterpreter::locals_double_at(intptr_t* locals, int offset) { | |
3173 return ((address)&locals[Interpreter::local_index_at(-(offset+1))]); | |
3174 } | |
3175 | |
3176 // Used for local value or returnAddress | |
3177 void BytecodeInterpreter::set_locals_slot(intptr_t *locals, | |
3178 address value, int offset) { | |
3179 *((address*)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3180 } | |
3181 void BytecodeInterpreter::set_locals_int(intptr_t *locals, | |
3182 jint value, int offset) { | |
3183 *((jint *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3184 } | |
3185 void BytecodeInterpreter::set_locals_float(intptr_t *locals, | |
3186 jfloat value, int offset) { | |
3187 *((jfloat *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3188 } | |
3189 void BytecodeInterpreter::set_locals_object(intptr_t *locals, | |
3190 oop value, int offset) { | |
3191 *((oop *)&locals[Interpreter::local_index_at(-offset)]) = value; | |
3192 } | |
3193 void BytecodeInterpreter::set_locals_double(intptr_t *locals, | |
3194 jdouble value, int offset) { | |
3195 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = value; | |
3196 } | |
3197 void BytecodeInterpreter::set_locals_long(intptr_t *locals, | |
3198 jlong value, int offset) { | |
3199 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = value; | |
3200 } | |
3201 void BytecodeInterpreter::set_locals_double_from_addr(intptr_t *locals, | |
3202 address addr, int offset) { | |
3203 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->d = ((VMJavaVal64*)addr)->d; | |
3204 } | |
3205 void BytecodeInterpreter::set_locals_long_from_addr(intptr_t *locals, | |
3206 address addr, int offset) { | |
3207 ((VMJavaVal64*)&locals[Interpreter::local_index_at(-(offset+1))])->l = ((VMJavaVal64*)addr)->l; | |
3208 } | |
3209 | |
3210 void BytecodeInterpreter::astore(intptr_t* tos, int stack_offset, | |
3211 intptr_t* locals, int locals_offset) { | |
3212 intptr_t value = tos[Interpreter::expr_index_at(-stack_offset)]; | |
3213 locals[Interpreter::local_index_at(-locals_offset)] = value; | |
3214 } | |
3215 | |
3216 | |
3217 void BytecodeInterpreter::copy_stack_slot(intptr_t *tos, int from_offset, | |
3218 int to_offset) { | |
3219 tos[Interpreter::expr_index_at(-to_offset)] = | |
3220 (intptr_t)tos[Interpreter::expr_index_at(-from_offset)]; | |
3221 } | |
3222 | |
3223 void BytecodeInterpreter::dup(intptr_t *tos) { | |
3224 copy_stack_slot(tos, -1, 0); | |
3225 } | |
3226 void BytecodeInterpreter::dup2(intptr_t *tos) { | |
3227 copy_stack_slot(tos, -2, 0); | |
3228 copy_stack_slot(tos, -1, 1); | |
3229 } | |
3230 | |
3231 void BytecodeInterpreter::dup_x1(intptr_t *tos) { | |
3232 /* insert top word two down */ | |
3233 copy_stack_slot(tos, -1, 0); | |
3234 copy_stack_slot(tos, -2, -1); | |
3235 copy_stack_slot(tos, 0, -2); | |
3236 } | |
3237 | |
3238 void BytecodeInterpreter::dup_x2(intptr_t *tos) { | |
3239 /* insert top word three down */ | |
3240 copy_stack_slot(tos, -1, 0); | |
3241 copy_stack_slot(tos, -2, -1); | |
3242 copy_stack_slot(tos, -3, -2); | |
3243 copy_stack_slot(tos, 0, -3); | |
3244 } | |
3245 void BytecodeInterpreter::dup2_x1(intptr_t *tos) { | |
3246 /* insert top 2 slots three down */ | |
3247 copy_stack_slot(tos, -1, 1); | |
3248 copy_stack_slot(tos, -2, 0); | |
3249 copy_stack_slot(tos, -3, -1); | |
3250 copy_stack_slot(tos, 1, -2); | |
3251 copy_stack_slot(tos, 0, -3); | |
3252 } | |
3253 void BytecodeInterpreter::dup2_x2(intptr_t *tos) { | |
3254 /* insert top 2 slots four down */ | |
3255 copy_stack_slot(tos, -1, 1); | |
3256 copy_stack_slot(tos, -2, 0); | |
3257 copy_stack_slot(tos, -3, -1); | |
3258 copy_stack_slot(tos, -4, -2); | |
3259 copy_stack_slot(tos, 1, -3); | |
3260 copy_stack_slot(tos, 0, -4); | |
3261 } | |
3262 | |
3263 | |
3264 void BytecodeInterpreter::swap(intptr_t *tos) { | |
3265 // swap top two elements | |
3266 intptr_t val = tos[Interpreter::expr_index_at(1)]; | |
3267 // Copy -2 entry to -1 | |
3268 copy_stack_slot(tos, -2, -1); | |
3269 // Store saved -1 entry into -2 | |
3270 tos[Interpreter::expr_index_at(2)] = val; | |
3271 } | |
3272 // -------------------------------------------------------------------------------- | |
3273 // Non-product code | |
3274 #ifndef PRODUCT | |
3275 | |
3276 const char* BytecodeInterpreter::C_msg(BytecodeInterpreter::messages msg) { | |
3277 switch (msg) { | |
3278 case BytecodeInterpreter::no_request: return("no_request"); | |
3279 case BytecodeInterpreter::initialize: return("initialize"); | |
3280 // status message to C++ interpreter | |
3281 case BytecodeInterpreter::method_entry: return("method_entry"); | |
3282 case BytecodeInterpreter::method_resume: return("method_resume"); | |
3283 case BytecodeInterpreter::got_monitors: return("got_monitors"); | |
3284 case BytecodeInterpreter::rethrow_exception: return("rethrow_exception"); | |
3285 // requests to frame manager from C++ interpreter | |
3286 case BytecodeInterpreter::call_method: return("call_method"); | |
3287 case BytecodeInterpreter::return_from_method: return("return_from_method"); | |
3288 case BytecodeInterpreter::more_monitors: return("more_monitors"); | |
3289 case BytecodeInterpreter::throwing_exception: return("throwing_exception"); | |
3290 case BytecodeInterpreter::popping_frame: return("popping_frame"); | |
3291 case BytecodeInterpreter::do_osr: return("do_osr"); | |
3292 // deopt | |
3293 case BytecodeInterpreter::deopt_resume: return("deopt_resume"); | |
3294 case BytecodeInterpreter::deopt_resume2: return("deopt_resume2"); | |
3295 default: return("BAD MSG"); | |
3296 } | |
3297 } | |
3298 void | |
3299 BytecodeInterpreter::print() { | |
3300 tty->print_cr("thread: " INTPTR_FORMAT, (uintptr_t) this->_thread); | |
3301 tty->print_cr("bcp: " INTPTR_FORMAT, (uintptr_t) this->_bcp); | |
3302 tty->print_cr("locals: " INTPTR_FORMAT, (uintptr_t) this->_locals); | |
3303 tty->print_cr("constants: " INTPTR_FORMAT, (uintptr_t) this->_constants); | |
3304 { | |
3305 ResourceMark rm; | |
3306 char *method_name = _method->name_and_sig_as_C_string(); | |
3307 tty->print_cr("method: " INTPTR_FORMAT "[ %s ]", (uintptr_t) this->_method, method_name); | |
3308 } | |
3309 tty->print_cr("mdx: " INTPTR_FORMAT, (uintptr_t) this->_mdx); | |
3310 tty->print_cr("stack: " INTPTR_FORMAT, (uintptr_t) this->_stack); | |
3311 tty->print_cr("msg: %s", C_msg(this->_msg)); | |
3312 tty->print_cr("result_to_call._callee: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee); | |
3313 tty->print_cr("result_to_call._callee_entry_point: " INTPTR_FORMAT, (uintptr_t) this->_result._to_call._callee_entry_point); | |
3314 tty->print_cr("result_to_call._bcp_advance: %d ", this->_result._to_call._bcp_advance); | |
3315 tty->print_cr("osr._osr_buf: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_buf); | |
3316 tty->print_cr("osr._osr_entry: " INTPTR_FORMAT, (uintptr_t) this->_result._osr._osr_entry); | |
3317 tty->print_cr("prev_link: " INTPTR_FORMAT, (uintptr_t) this->_prev_link); | |
3318 tty->print_cr("native_mirror: " INTPTR_FORMAT, (uintptr_t) this->_oop_temp); | |
3319 tty->print_cr("stack_base: " INTPTR_FORMAT, (uintptr_t) this->_stack_base); | |
3320 tty->print_cr("stack_limit: " INTPTR_FORMAT, (uintptr_t) this->_stack_limit); | |
3321 tty->print_cr("monitor_base: " INTPTR_FORMAT, (uintptr_t) this->_monitor_base); | |
3322 #ifdef SPARC | |
3323 tty->print_cr("last_Java_pc: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_pc); | |
3324 tty->print_cr("frame_bottom: " INTPTR_FORMAT, (uintptr_t) this->_frame_bottom); | |
3325 tty->print_cr("&native_fresult: " INTPTR_FORMAT, (uintptr_t) &this->_native_fresult); | |
3326 tty->print_cr("native_lresult: " INTPTR_FORMAT, (uintptr_t) this->_native_lresult); | |
3327 #endif | |
7994 | 3328 #if !defined(ZERO) |
0 | 3329 tty->print_cr("last_Java_fp: " INTPTR_FORMAT, (uintptr_t) this->_last_Java_fp); |
7994 | 3330 #endif // !ZERO |
0 | 3331 tty->print_cr("self_link: " INTPTR_FORMAT, (uintptr_t) this->_self_link); |
3332 } | |
3333 | |
3334 extern "C" { | |
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3335 void PI(uintptr_t arg) { |
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3336 ((BytecodeInterpreter*)arg)->print(); |
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3337 } |
0 | 3338 } |
3339 #endif // PRODUCT | |
3340 | |
3341 #endif // JVMTI | |
3342 #endif // CC_INTERP |