Mercurial > hg > truffle
annotate src/cpu/x86/vm/interp_masm_x86_32.cpp @ 614:3db67f76d308
Merge
author | acorn |
---|---|
date | Thu, 05 Mar 2009 22:07:29 -0500 |
parents | afa80fa86d22 |
children | 2f2f54ed12ce |
rev | line source |
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0 | 1 /* |
337 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_interp_masm_x86_32.cpp.incl" | |
27 | |
28 | |
29 // Implementation of InterpreterMacroAssembler | |
30 #ifdef CC_INTERP | |
31 void InterpreterMacroAssembler::get_method(Register reg) { | |
304 | 32 movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize))); |
33 movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method))); | |
0 | 34 } |
35 #endif // CC_INTERP | |
36 | |
37 | |
38 #ifndef CC_INTERP | |
39 void InterpreterMacroAssembler::call_VM_leaf_base( | |
40 address entry_point, | |
41 int number_of_arguments | |
42 ) { | |
43 // interpreter specific | |
44 // | |
45 // Note: No need to save/restore bcp & locals (rsi & rdi) pointer | |
46 // since these are callee saved registers and no blocking/ | |
47 // GC can happen in leaf calls. | |
48 // Further Note: DO NOT save/restore bcp/locals. If a caller has | |
49 // already saved them so that it can use rsi/rdi as temporaries | |
50 // then a save/restore here will DESTROY the copy the caller | |
51 // saved! There used to be a save_bcp() that only happened in | |
52 // the ASSERT path (no restore_bcp). Which caused bizarre failures | |
53 // when jvm built with ASSERTs. | |
54 #ifdef ASSERT | |
55 { Label L; | |
304 | 56 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 57 jcc(Assembler::equal, L); |
58 stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL"); | |
59 bind(L); | |
60 } | |
61 #endif | |
62 // super call | |
63 MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments); | |
64 // interpreter specific | |
65 | |
66 // Used to ASSERT that rsi/rdi were equal to frame's bcp/locals | |
67 // but since they may not have been saved (and we don't want to | |
68 // save them here (see note above) the assert is invalid. | |
69 } | |
70 | |
71 | |
72 void InterpreterMacroAssembler::call_VM_base( | |
73 Register oop_result, | |
74 Register java_thread, | |
75 Register last_java_sp, | |
76 address entry_point, | |
77 int number_of_arguments, | |
78 bool check_exceptions | |
79 ) { | |
80 #ifdef ASSERT | |
81 { Label L; | |
304 | 82 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 83 jcc(Assembler::equal, L); |
84 stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL"); | |
85 bind(L); | |
86 } | |
87 #endif /* ASSERT */ | |
88 // interpreter specific | |
89 // | |
90 // Note: Could avoid restoring locals ptr (callee saved) - however doesn't | |
91 // really make a difference for these runtime calls, since they are | |
92 // slow anyway. Btw., bcp must be saved/restored since it may change | |
93 // due to GC. | |
94 assert(java_thread == noreg , "not expecting a precomputed java thread"); | |
95 save_bcp(); | |
96 // super call | |
97 MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions); | |
98 // interpreter specific | |
99 restore_bcp(); | |
100 restore_locals(); | |
101 } | |
102 | |
103 | |
104 void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) { | |
105 if (JvmtiExport::can_pop_frame()) { | |
106 Label L; | |
107 // Initiate popframe handling only if it is not already being processed. If the flag | |
108 // has the popframe_processing bit set, it means that this code is called *during* popframe | |
109 // handling - we don't want to reenter. | |
110 Register pop_cond = java_thread; // Not clear if any other register is available... | |
111 movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset())); | |
112 testl(pop_cond, JavaThread::popframe_pending_bit); | |
113 jcc(Assembler::zero, L); | |
114 testl(pop_cond, JavaThread::popframe_processing_bit); | |
115 jcc(Assembler::notZero, L); | |
116 // Call Interpreter::remove_activation_preserving_args_entry() to get the | |
117 // address of the same-named entrypoint in the generated interpreter code. | |
118 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry)); | |
119 jmp(rax); | |
120 bind(L); | |
121 get_thread(java_thread); | |
122 } | |
123 } | |
124 | |
125 | |
126 void InterpreterMacroAssembler::load_earlyret_value(TosState state) { | |
127 get_thread(rcx); | |
128 movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset())); | |
129 const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset()); | |
130 const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset()); | |
131 const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset()); | |
132 const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset() | |
133 + in_ByteSize(wordSize)); | |
134 switch (state) { | |
304 | 135 case atos: movptr(rax, oop_addr); |
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136 movptr(oop_addr, NULL_WORD); |
0 | 137 verify_oop(rax, state); break; |
304 | 138 case ltos: |
139 movl(rdx, val_addr1); // fall through | |
0 | 140 case btos: // fall through |
141 case ctos: // fall through | |
142 case stos: // fall through | |
143 case itos: movl(rax, val_addr); break; | |
144 case ftos: fld_s(val_addr); break; | |
145 case dtos: fld_d(val_addr); break; | |
146 case vtos: /* nothing to do */ break; | |
147 default : ShouldNotReachHere(); | |
148 } | |
149 // Clean up tos value in the thread object | |
304 | 150 movl(tos_addr, (int32_t) ilgl); |
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151 movptr(val_addr, NULL_WORD); |
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152 NOT_LP64(movptr(val_addr1, NULL_WORD)); |
0 | 153 } |
154 | |
155 | |
156 void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) { | |
157 if (JvmtiExport::can_force_early_return()) { | |
158 Label L; | |
159 Register tmp = java_thread; | |
304 | 160 movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset())); |
161 testptr(tmp, tmp); | |
0 | 162 jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit; |
163 | |
164 // Initiate earlyret handling only if it is not already being processed. | |
165 // If the flag has the earlyret_processing bit set, it means that this code | |
166 // is called *during* earlyret handling - we don't want to reenter. | |
167 movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset())); | |
168 cmpl(tmp, JvmtiThreadState::earlyret_pending); | |
169 jcc(Assembler::notEqual, L); | |
170 | |
171 // Call Interpreter::remove_activation_early_entry() to get the address of the | |
172 // same-named entrypoint in the generated interpreter code. | |
173 get_thread(java_thread); | |
304 | 174 movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 175 pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset())); |
176 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1); | |
177 jmp(rax); | |
178 bind(L); | |
179 get_thread(java_thread); | |
180 } | |
181 } | |
182 | |
183 | |
184 void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) { | |
185 assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode"); | |
186 movl(reg, Address(rsi, bcp_offset)); | |
304 | 187 bswapl(reg); |
0 | 188 shrl(reg, 16); |
189 } | |
190 | |
191 | |
192 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset) { | |
193 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); | |
194 assert(cache != index, "must use different registers"); | |
195 load_unsigned_word(index, Address(rsi, bcp_offset)); | |
304 | 196 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
0 | 197 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
304 | 198 shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index |
0 | 199 } |
200 | |
201 | |
202 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset) { | |
203 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); | |
204 assert(cache != tmp, "must use different register"); | |
205 load_unsigned_word(tmp, Address(rsi, bcp_offset)); | |
206 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); | |
207 // convert from field index to ConstantPoolCacheEntry index | |
208 // and from word offset to byte offset | |
209 shll(tmp, 2 + LogBytesPerWord); | |
304 | 210 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
0 | 211 // skip past the header |
304 | 212 addptr(cache, in_bytes(constantPoolCacheOopDesc::base_offset())); |
213 addptr(cache, tmp); // construct pointer to cache entry | |
0 | 214 } |
215 | |
216 | |
217 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
218 // a subtype of super_klass. EAX holds the super_klass. Blows ECX. | |
219 // Resets EDI to locals. Register sub_klass cannot be any of the above. | |
220 void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) { | |
221 assert( Rsub_klass != rax, "rax, holds superklass" ); | |
222 assert( Rsub_klass != rcx, "rcx holds 2ndary super array length" ); | |
223 assert( Rsub_klass != rdi, "rdi holds 2ndary super array scan ptr" ); | |
224 Label not_subtype, loop; | |
225 | |
226 // Profile the not-null value's klass. | |
227 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, rdi | |
228 | |
229 // Load the super-klass's check offset into ECX | |
230 movl( rcx, Address(rax, sizeof(oopDesc) + Klass::super_check_offset_offset_in_bytes() ) ); | |
231 // Load from the sub-klass's super-class display list, or a 1-word cache of | |
232 // the secondary superclass list, or a failing value with a sentinel offset | |
233 // if the super-klass is an interface or exceptionally deep in the Java | |
234 // hierarchy and we have to scan the secondary superclass list the hard way. | |
235 // See if we get an immediate positive hit | |
304 | 236 cmpptr( rax, Address(Rsub_klass,rcx,Address::times_1) ); |
0 | 237 jcc( Assembler::equal,ok_is_subtype ); |
238 | |
239 // Check for immediate negative hit | |
240 cmpl( rcx, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes() ); | |
241 jcc( Assembler::notEqual, not_subtype ); | |
242 // Check for self | |
304 | 243 cmpptr( Rsub_klass, rax ); |
0 | 244 jcc( Assembler::equal, ok_is_subtype ); |
245 | |
246 // Now do a linear scan of the secondary super-klass chain. | |
304 | 247 movptr( rdi, Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_supers_offset_in_bytes()) ); |
0 | 248 // EDI holds the objArrayOop of secondary supers. |
249 movl( rcx, Address(rdi, arrayOopDesc::length_offset_in_bytes()));// Load the array length | |
250 // Skip to start of data; also clear Z flag incase ECX is zero | |
304 | 251 addptr( rdi, arrayOopDesc::base_offset_in_bytes(T_OBJECT) ); |
0 | 252 // Scan ECX words at [EDI] for occurance of EAX |
253 // Set NZ/Z based on last compare | |
254 repne_scan(); | |
255 restore_locals(); // Restore EDI; Must not blow flags | |
256 // Not equal? | |
257 jcc( Assembler::notEqual, not_subtype ); | |
258 // Must be equal but missed in cache. Update cache. | |
304 | 259 movptr( Address(Rsub_klass, sizeof(oopDesc) + Klass::secondary_super_cache_offset_in_bytes()), rax ); |
0 | 260 jmp( ok_is_subtype ); |
261 | |
262 bind(not_subtype); | |
263 profile_typecheck_failed(rcx); // blows rcx | |
264 } | |
265 | |
266 void InterpreterMacroAssembler::f2ieee() { | |
267 if (IEEEPrecision) { | |
268 fstp_s(Address(rsp, 0)); | |
269 fld_s(Address(rsp, 0)); | |
270 } | |
271 } | |
272 | |
273 | |
274 void InterpreterMacroAssembler::d2ieee() { | |
275 if (IEEEPrecision) { | |
276 fstp_d(Address(rsp, 0)); | |
277 fld_d(Address(rsp, 0)); | |
278 } | |
279 } | |
280 | |
281 // Java Expression Stack | |
282 | |
283 #ifdef ASSERT | |
284 void InterpreterMacroAssembler::verify_stack_tag(frame::Tag t) { | |
285 if (TaggedStackInterpreter) { | |
286 Label okay; | |
304 | 287 cmpptr(Address(rsp, wordSize), (int32_t)t); |
0 | 288 jcc(Assembler::equal, okay); |
289 // Also compare if the stack value is zero, then the tag might | |
290 // not have been set coming from deopt. | |
304 | 291 cmpptr(Address(rsp, 0), 0); |
0 | 292 jcc(Assembler::equal, okay); |
293 stop("Java Expression stack tag value is bad"); | |
294 bind(okay); | |
295 } | |
296 } | |
297 #endif // ASSERT | |
298 | |
299 void InterpreterMacroAssembler::pop_ptr(Register r) { | |
300 debug_only(verify_stack_tag(frame::TagReference)); | |
304 | 301 pop(r); |
302 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
0 | 303 } |
304 | |
305 void InterpreterMacroAssembler::pop_ptr(Register r, Register tag) { | |
304 | 306 pop(r); |
0 | 307 // Tag may not be reference for jsr, can be returnAddress |
304 | 308 if (TaggedStackInterpreter) pop(tag); |
0 | 309 } |
310 | |
311 void InterpreterMacroAssembler::pop_i(Register r) { | |
312 debug_only(verify_stack_tag(frame::TagValue)); | |
304 | 313 pop(r); |
314 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
0 | 315 } |
316 | |
317 void InterpreterMacroAssembler::pop_l(Register lo, Register hi) { | |
318 debug_only(verify_stack_tag(frame::TagValue)); | |
304 | 319 pop(lo); |
320 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
0 | 321 debug_only(verify_stack_tag(frame::TagValue)); |
304 | 322 pop(hi); |
323 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
0 | 324 } |
325 | |
326 void InterpreterMacroAssembler::pop_f() { | |
327 debug_only(verify_stack_tag(frame::TagValue)); | |
328 fld_s(Address(rsp, 0)); | |
304 | 329 addptr(rsp, 1 * wordSize); |
330 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
0 | 331 } |
332 | |
333 void InterpreterMacroAssembler::pop_d() { | |
334 // Write double to stack contiguously and load into ST0 | |
335 pop_dtos_to_rsp(); | |
336 fld_d(Address(rsp, 0)); | |
304 | 337 addptr(rsp, 2 * wordSize); |
0 | 338 } |
339 | |
340 | |
341 // Pop the top of the java expression stack to execution stack (which | |
342 // happens to be the same place). | |
343 void InterpreterMacroAssembler::pop_dtos_to_rsp() { | |
344 if (TaggedStackInterpreter) { | |
345 // Pop double value into scratch registers | |
346 debug_only(verify_stack_tag(frame::TagValue)); | |
304 | 347 pop(rax); |
348 addptr(rsp, 1* wordSize); | |
0 | 349 debug_only(verify_stack_tag(frame::TagValue)); |
304 | 350 pop(rdx); |
351 addptr(rsp, 1* wordSize); | |
352 push(rdx); | |
353 push(rax); | |
0 | 354 } |
355 } | |
356 | |
357 void InterpreterMacroAssembler::pop_ftos_to_rsp() { | |
358 if (TaggedStackInterpreter) { | |
359 debug_only(verify_stack_tag(frame::TagValue)); | |
304 | 360 pop(rax); |
361 addptr(rsp, 1 * wordSize); | |
362 push(rax); // ftos is at rsp | |
0 | 363 } |
364 } | |
365 | |
366 void InterpreterMacroAssembler::pop(TosState state) { | |
367 switch (state) { | |
368 case atos: pop_ptr(rax); break; | |
369 case btos: // fall through | |
370 case ctos: // fall through | |
371 case stos: // fall through | |
372 case itos: pop_i(rax); break; | |
373 case ltos: pop_l(rax, rdx); break; | |
374 case ftos: pop_f(); break; | |
375 case dtos: pop_d(); break; | |
376 case vtos: /* nothing to do */ break; | |
377 default : ShouldNotReachHere(); | |
378 } | |
379 verify_oop(rax, state); | |
380 } | |
381 | |
382 void InterpreterMacroAssembler::push_ptr(Register r) { | |
304 | 383 if (TaggedStackInterpreter) push(frame::TagReference); |
384 push(r); | |
0 | 385 } |
386 | |
387 void InterpreterMacroAssembler::push_ptr(Register r, Register tag) { | |
304 | 388 if (TaggedStackInterpreter) push(tag); // tag first |
389 push(r); | |
0 | 390 } |
391 | |
392 void InterpreterMacroAssembler::push_i(Register r) { | |
304 | 393 if (TaggedStackInterpreter) push(frame::TagValue); |
394 push(r); | |
0 | 395 } |
396 | |
397 void InterpreterMacroAssembler::push_l(Register lo, Register hi) { | |
304 | 398 if (TaggedStackInterpreter) push(frame::TagValue); |
399 push(hi); | |
400 if (TaggedStackInterpreter) push(frame::TagValue); | |
401 push(lo); | |
0 | 402 } |
403 | |
404 void InterpreterMacroAssembler::push_f() { | |
304 | 405 if (TaggedStackInterpreter) push(frame::TagValue); |
0 | 406 // Do not schedule for no AGI! Never write beyond rsp! |
304 | 407 subptr(rsp, 1 * wordSize); |
0 | 408 fstp_s(Address(rsp, 0)); |
409 } | |
410 | |
411 void InterpreterMacroAssembler::push_d(Register r) { | |
412 if (TaggedStackInterpreter) { | |
413 // Double values are stored as: | |
414 // tag | |
415 // high | |
416 // tag | |
417 // low | |
304 | 418 push(frame::TagValue); |
419 subptr(rsp, 3 * wordSize); | |
0 | 420 fstp_d(Address(rsp, 0)); |
421 // move high word up to slot n-1 | |
422 movl(r, Address(rsp, 1*wordSize)); | |
423 movl(Address(rsp, 2*wordSize), r); | |
424 // move tag | |
425 movl(Address(rsp, 1*wordSize), frame::TagValue); | |
426 } else { | |
427 // Do not schedule for no AGI! Never write beyond rsp! | |
304 | 428 subptr(rsp, 2 * wordSize); |
0 | 429 fstp_d(Address(rsp, 0)); |
430 } | |
431 } | |
432 | |
433 | |
434 void InterpreterMacroAssembler::push(TosState state) { | |
435 verify_oop(rax, state); | |
436 switch (state) { | |
437 case atos: push_ptr(rax); break; | |
438 case btos: // fall through | |
439 case ctos: // fall through | |
440 case stos: // fall through | |
441 case itos: push_i(rax); break; | |
442 case ltos: push_l(rax, rdx); break; | |
443 case ftos: push_f(); break; | |
444 case dtos: push_d(rax); break; | |
445 case vtos: /* nothing to do */ break; | |
446 default : ShouldNotReachHere(); | |
447 } | |
448 } | |
449 | |
450 | |
451 // Tagged stack helpers for swap and dup | |
452 void InterpreterMacroAssembler::load_ptr_and_tag(int n, Register val, | |
453 Register tag) { | |
304 | 454 movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n))); |
0 | 455 if (TaggedStackInterpreter) { |
304 | 456 movptr(tag, Address(rsp, Interpreter::expr_tag_offset_in_bytes(n))); |
0 | 457 } |
458 } | |
459 | |
460 void InterpreterMacroAssembler::store_ptr_and_tag(int n, Register val, | |
461 Register tag) { | |
304 | 462 movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val); |
0 | 463 if (TaggedStackInterpreter) { |
304 | 464 movptr(Address(rsp, Interpreter::expr_tag_offset_in_bytes(n)), tag); |
0 | 465 } |
466 } | |
467 | |
468 | |
469 // Tagged local support | |
470 void InterpreterMacroAssembler::tag_local(frame::Tag tag, int n) { | |
471 if (TaggedStackInterpreter) { | |
472 if (tag == frame::TagCategory2) { | |
304 | 473 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)frame::TagValue); |
474 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)frame::TagValue); | |
0 | 475 } else { |
304 | 476 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)tag); |
0 | 477 } |
478 } | |
479 } | |
480 | |
481 void InterpreterMacroAssembler::tag_local(frame::Tag tag, Register idx) { | |
482 if (TaggedStackInterpreter) { | |
483 if (tag == frame::TagCategory2) { | |
304 | 484 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
485 Interpreter::local_tag_offset_in_bytes(1)), (int32_t)frame::TagValue); | |
486 movptr(Address(rdi, idx, Interpreter::stackElementScale(), | |
487 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)frame::TagValue); | |
0 | 488 } else { |
304 | 489 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
490 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)tag); | |
0 | 491 } |
492 } | |
493 } | |
494 | |
495 void InterpreterMacroAssembler::tag_local(Register tag, Register idx) { | |
496 if (TaggedStackInterpreter) { | |
497 // can only be TagValue or TagReference | |
304 | 498 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
0 | 499 Interpreter::local_tag_offset_in_bytes(0)), tag); |
500 } | |
501 } | |
502 | |
503 | |
504 void InterpreterMacroAssembler::tag_local(Register tag, int n) { | |
505 if (TaggedStackInterpreter) { | |
506 // can only be TagValue or TagReference | |
304 | 507 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), tag); |
0 | 508 } |
509 } | |
510 | |
511 #ifdef ASSERT | |
512 void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, int n) { | |
513 if (TaggedStackInterpreter) { | |
514 frame::Tag t = tag; | |
515 if (tag == frame::TagCategory2) { | |
516 Label nbl; | |
517 t = frame::TagValue; // change to what is stored in locals | |
304 | 518 cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)t); |
0 | 519 jcc(Assembler::equal, nbl); |
520 stop("Local tag is bad for long/double"); | |
521 bind(nbl); | |
522 } | |
523 Label notBad; | |
304 | 524 cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)t); |
0 | 525 jcc(Assembler::equal, notBad); |
526 // Also compare if the local value is zero, then the tag might | |
527 // not have been set coming from deopt. | |
304 | 528 cmpptr(Address(rdi, Interpreter::local_offset_in_bytes(n)), 0); |
0 | 529 jcc(Assembler::equal, notBad); |
530 stop("Local tag is bad"); | |
531 bind(notBad); | |
532 } | |
533 } | |
534 | |
535 void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, Register idx) { | |
536 if (TaggedStackInterpreter) { | |
537 frame::Tag t = tag; | |
538 if (tag == frame::TagCategory2) { | |
539 Label nbl; | |
540 t = frame::TagValue; // change to what is stored in locals | |
304 | 541 cmpptr(Address(rdi, idx, Interpreter::stackElementScale(), |
542 Interpreter::local_tag_offset_in_bytes(1)), (int32_t)t); | |
0 | 543 jcc(Assembler::equal, nbl); |
544 stop("Local tag is bad for long/double"); | |
545 bind(nbl); | |
546 } | |
547 Label notBad; | |
548 cmpl(Address(rdi, idx, Interpreter::stackElementScale(), | |
304 | 549 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)t); |
0 | 550 jcc(Assembler::equal, notBad); |
551 // Also compare if the local value is zero, then the tag might | |
552 // not have been set coming from deopt. | |
304 | 553 cmpptr(Address(rdi, idx, Interpreter::stackElementScale(), |
0 | 554 Interpreter::local_offset_in_bytes(0)), 0); |
555 jcc(Assembler::equal, notBad); | |
556 stop("Local tag is bad"); | |
557 bind(notBad); | |
558 | |
559 } | |
560 } | |
561 #endif // ASSERT | |
562 | |
563 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point) { | |
564 MacroAssembler::call_VM_leaf_base(entry_point, 0); | |
565 } | |
566 | |
567 | |
568 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1) { | |
304 | 569 push(arg_1); |
0 | 570 MacroAssembler::call_VM_leaf_base(entry_point, 1); |
571 } | |
572 | |
573 | |
574 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2) { | |
304 | 575 push(arg_2); |
576 push(arg_1); | |
0 | 577 MacroAssembler::call_VM_leaf_base(entry_point, 2); |
578 } | |
579 | |
580 | |
581 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3) { | |
304 | 582 push(arg_3); |
583 push(arg_2); | |
584 push(arg_1); | |
0 | 585 MacroAssembler::call_VM_leaf_base(entry_point, 3); |
586 } | |
587 | |
588 | |
589 // Jump to from_interpreted entry of a call unless single stepping is possible | |
590 // in this thread in which case we must call the i2i entry | |
591 void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) { | |
592 // set sender sp | |
304 | 593 lea(rsi, Address(rsp, wordSize)); |
0 | 594 // record last_sp |
304 | 595 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi); |
0 | 596 |
597 if (JvmtiExport::can_post_interpreter_events()) { | |
598 Label run_compiled_code; | |
599 // JVMTI events, such as single-stepping, are implemented partly by avoiding running | |
600 // compiled code in threads for which the event is enabled. Check here for | |
601 // interp_only_mode if these events CAN be enabled. | |
602 get_thread(temp); | |
603 // interp_only is an int, on little endian it is sufficient to test the byte only | |
604 // Is a cmpl faster (ce | |
605 cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0); | |
606 jcc(Assembler::zero, run_compiled_code); | |
607 jmp(Address(method, methodOopDesc::interpreter_entry_offset())); | |
608 bind(run_compiled_code); | |
609 } | |
610 | |
611 jmp(Address(method, methodOopDesc::from_interpreted_offset())); | |
612 | |
613 } | |
614 | |
615 | |
616 // The following two routines provide a hook so that an implementation | |
617 // can schedule the dispatch in two parts. Intel does not do this. | |
618 void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) { | |
619 // Nothing Intel-specific to be done here. | |
620 } | |
621 | |
622 void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) { | |
623 dispatch_next(state, step); | |
624 } | |
625 | |
626 void InterpreterMacroAssembler::dispatch_base(TosState state, address* table, | |
627 bool verifyoop) { | |
628 verify_FPU(1, state); | |
629 if (VerifyActivationFrameSize) { | |
630 Label L; | |
304 | 631 mov(rcx, rbp); |
632 subptr(rcx, rsp); | |
0 | 633 int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize; |
304 | 634 cmpptr(rcx, min_frame_size); |
0 | 635 jcc(Assembler::greaterEqual, L); |
636 stop("broken stack frame"); | |
637 bind(L); | |
638 } | |
639 if (verifyoop) verify_oop(rax, state); | |
304 | 640 Address index(noreg, rbx, Address::times_ptr); |
0 | 641 ExternalAddress tbl((address)table); |
642 ArrayAddress dispatch(tbl, index); | |
643 jump(dispatch); | |
644 } | |
645 | |
646 | |
647 void InterpreterMacroAssembler::dispatch_only(TosState state) { | |
648 dispatch_base(state, Interpreter::dispatch_table(state)); | |
649 } | |
650 | |
651 | |
652 void InterpreterMacroAssembler::dispatch_only_normal(TosState state) { | |
653 dispatch_base(state, Interpreter::normal_table(state)); | |
654 } | |
655 | |
656 void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) { | |
657 dispatch_base(state, Interpreter::normal_table(state), false); | |
658 } | |
659 | |
660 | |
661 void InterpreterMacroAssembler::dispatch_next(TosState state, int step) { | |
662 // load next bytecode (load before advancing rsi to prevent AGI) | |
663 load_unsigned_byte(rbx, Address(rsi, step)); | |
664 // advance rsi | |
665 increment(rsi, step); | |
666 dispatch_base(state, Interpreter::dispatch_table(state)); | |
667 } | |
668 | |
669 | |
670 void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) { | |
671 // load current bytecode | |
672 load_unsigned_byte(rbx, Address(rsi, 0)); | |
673 dispatch_base(state, table); | |
674 } | |
675 | |
676 // remove activation | |
677 // | |
678 // Unlock the receiver if this is a synchronized method. | |
679 // Unlock any Java monitors from syncronized blocks. | |
680 // Remove the activation from the stack. | |
681 // | |
682 // If there are locked Java monitors | |
683 // If throw_monitor_exception | |
684 // throws IllegalMonitorStateException | |
685 // Else if install_monitor_exception | |
686 // installs IllegalMonitorStateException | |
687 // Else | |
688 // no error processing | |
689 void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr, | |
690 bool throw_monitor_exception, | |
691 bool install_monitor_exception, | |
692 bool notify_jvmdi) { | |
693 // Note: Registers rax, rdx and FPU ST(0) may be in use for the result | |
694 // check if synchronized method | |
695 Label unlocked, unlock, no_unlock; | |
696 | |
697 get_thread(rcx); | |
698 const Address do_not_unlock_if_synchronized(rcx, | |
699 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
700 | |
701 movbool(rbx, do_not_unlock_if_synchronized); | |
304 | 702 mov(rdi,rbx); |
0 | 703 movbool(do_not_unlock_if_synchronized, false); // reset the flag |
704 | |
304 | 705 movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags |
0 | 706 movl(rcx, Address(rbx, methodOopDesc::access_flags_offset())); |
707 | |
708 testl(rcx, JVM_ACC_SYNCHRONIZED); | |
709 jcc(Assembler::zero, unlocked); | |
710 | |
711 // Don't unlock anything if the _do_not_unlock_if_synchronized flag | |
712 // is set. | |
304 | 713 mov(rcx,rdi); |
0 | 714 testbool(rcx); |
715 jcc(Assembler::notZero, no_unlock); | |
716 | |
717 // unlock monitor | |
718 push(state); // save result | |
719 | |
720 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
721 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
722 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
304 | 723 lea (rdx, monitor); // address of first monitor |
0 | 724 |
304 | 725 movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
726 testptr(rax, rax); | |
727 jcc (Assembler::notZero, unlock); | |
0 | 728 |
729 pop(state); | |
730 if (throw_monitor_exception) { | |
731 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
732 | |
733 // Entry already unlocked, need to throw exception | |
734 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
735 should_not_reach_here(); | |
736 } else { | |
737 // Monitor already unlocked during a stack unroll. | |
738 // If requested, install an illegal_monitor_state_exception. | |
739 // Continue with stack unrolling. | |
740 if (install_monitor_exception) { | |
741 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
742 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
743 } | |
744 jmp(unlocked); | |
745 } | |
746 | |
747 bind(unlock); | |
748 unlock_object(rdx); | |
749 pop(state); | |
750 | |
751 // Check that for block-structured locking (i.e., that all locked objects has been unlocked) | |
752 bind(unlocked); | |
753 | |
754 // rax, rdx: Might contain return value | |
755 | |
756 // Check that all monitors are unlocked | |
757 { | |
758 Label loop, exception, entry, restart; | |
759 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
760 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
761 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
762 | |
763 bind(restart); | |
304 | 764 movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
765 lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
0 | 766 jmp(entry); |
767 | |
768 // Entry already locked, need to throw exception | |
769 bind(exception); | |
770 | |
771 if (throw_monitor_exception) { | |
772 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
773 | |
774 // Throw exception | |
775 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
776 should_not_reach_here(); | |
777 } else { | |
778 // Stack unrolling. Unlock object and install illegal_monitor_exception | |
779 // Unlock does not block, so don't have to worry about the frame | |
780 | |
781 push(state); | |
304 | 782 mov(rdx, rcx); |
0 | 783 unlock_object(rdx); |
784 pop(state); | |
785 | |
786 if (install_monitor_exception) { | |
787 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
788 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
789 } | |
790 | |
791 jmp(restart); | |
792 } | |
793 | |
794 bind(loop); | |
304 | 795 cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
0 | 796 jcc(Assembler::notEqual, exception); |
797 | |
304 | 798 addptr(rcx, entry_size); // otherwise advance to next entry |
0 | 799 bind(entry); |
304 | 800 cmpptr(rcx, rbx); // check if bottom reached |
0 | 801 jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
802 } | |
803 | |
804 bind(no_unlock); | |
805 | |
806 // jvmti support | |
807 if (notify_jvmdi) { | |
808 notify_method_exit(state, NotifyJVMTI); // preserve TOSCA | |
809 } else { | |
810 notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA | |
811 } | |
812 | |
813 // remove activation | |
304 | 814 movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 815 leave(); // remove frame anchor |
304 | 816 pop(ret_addr); // get return address |
817 mov(rsp, rbx); // set sp to sender sp | |
0 | 818 if (UseSSE) { |
819 // float and double are returned in xmm register in SSE-mode | |
820 if (state == ftos && UseSSE >= 1) { | |
304 | 821 subptr(rsp, wordSize); |
0 | 822 fstp_s(Address(rsp, 0)); |
823 movflt(xmm0, Address(rsp, 0)); | |
304 | 824 addptr(rsp, wordSize); |
0 | 825 } else if (state == dtos && UseSSE >= 2) { |
304 | 826 subptr(rsp, 2*wordSize); |
0 | 827 fstp_d(Address(rsp, 0)); |
828 movdbl(xmm0, Address(rsp, 0)); | |
304 | 829 addptr(rsp, 2*wordSize); |
0 | 830 } |
831 } | |
832 } | |
833 | |
834 #endif /* !CC_INTERP */ | |
835 | |
836 | |
837 // Lock object | |
838 // | |
839 // Argument: rdx : Points to BasicObjectLock to be used for locking. Must | |
840 // be initialized with object to lock | |
841 void InterpreterMacroAssembler::lock_object(Register lock_reg) { | |
842 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
843 | |
844 if (UseHeavyMonitors) { | |
845 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
846 } else { | |
847 | |
848 Label done; | |
849 | |
850 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
851 const Register obj_reg = rcx; // Will contain the oop | |
852 | |
853 const int obj_offset = BasicObjectLock::obj_offset_in_bytes(); | |
854 const int lock_offset = BasicObjectLock::lock_offset_in_bytes (); | |
855 const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes(); | |
856 | |
857 Label slow_case; | |
858 | |
859 // Load object pointer into obj_reg %rcx | |
304 | 860 movptr(obj_reg, Address(lock_reg, obj_offset)); |
0 | 861 |
862 if (UseBiasedLocking) { | |
863 // Note: we use noreg for the temporary register since it's hard | |
864 // to come up with a free register on all incoming code paths | |
865 biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case); | |
866 } | |
867 | |
868 // Load immediate 1 into swap_reg %rax, | |
304 | 869 movptr(swap_reg, (int32_t)1); |
0 | 870 |
871 // Load (object->mark() | 1) into swap_reg %rax, | |
304 | 872 orptr(swap_reg, Address(obj_reg, 0)); |
0 | 873 |
874 // Save (object->mark() | 1) into BasicLock's displaced header | |
304 | 875 movptr(Address(lock_reg, mark_offset), swap_reg); |
0 | 876 |
877 assert(lock_offset == 0, "displached header must be first word in BasicObjectLock"); | |
878 if (os::is_MP()) { | |
879 lock(); | |
880 } | |
304 | 881 cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
0 | 882 if (PrintBiasedLockingStatistics) { |
883 cond_inc32(Assembler::zero, | |
884 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
885 } | |
886 jcc(Assembler::zero, done); | |
887 | |
888 // Test if the oopMark is an obvious stack pointer, i.e., | |
889 // 1) (mark & 3) == 0, and | |
890 // 2) rsp <= mark < mark + os::pagesize() | |
891 // | |
892 // These 3 tests can be done by evaluating the following | |
893 // expression: ((mark - rsp) & (3 - os::vm_page_size())), | |
894 // assuming both stack pointer and pagesize have their | |
895 // least significant 2 bits clear. | |
896 // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg | |
304 | 897 subptr(swap_reg, rsp); |
898 andptr(swap_reg, 3 - os::vm_page_size()); | |
0 | 899 |
900 // Save the test result, for recursive case, the result is zero | |
304 | 901 movptr(Address(lock_reg, mark_offset), swap_reg); |
0 | 902 |
903 if (PrintBiasedLockingStatistics) { | |
904 cond_inc32(Assembler::zero, | |
905 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
906 } | |
907 jcc(Assembler::zero, done); | |
908 | |
909 bind(slow_case); | |
910 | |
911 // Call the runtime routine for slow case | |
912 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
913 | |
914 bind(done); | |
915 } | |
916 } | |
917 | |
918 | |
919 // Unlocks an object. Used in monitorexit bytecode and remove_activation. | |
920 // | |
921 // Argument: rdx : Points to BasicObjectLock structure for lock | |
922 // Throw an IllegalMonitorException if object is not locked by current thread | |
923 // | |
924 // Uses: rax, rbx, rcx, rdx | |
925 void InterpreterMacroAssembler::unlock_object(Register lock_reg) { | |
926 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
927 | |
928 if (UseHeavyMonitors) { | |
929 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); | |
930 } else { | |
931 Label done; | |
932 | |
933 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
934 const Register header_reg = rbx; // Will contain the old oopMark | |
935 const Register obj_reg = rcx; // Will contain the oop | |
936 | |
937 save_bcp(); // Save in case of exception | |
938 | |
939 // Convert from BasicObjectLock structure to object and BasicLock structure | |
940 // Store the BasicLock address into %rax, | |
304 | 941 lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes())); |
0 | 942 |
943 // Load oop into obj_reg(%rcx) | |
304 | 944 movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ())); |
0 | 945 |
946 // Free entry | |
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947 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD); |
0 | 948 |
949 if (UseBiasedLocking) { | |
950 biased_locking_exit(obj_reg, header_reg, done); | |
951 } | |
952 | |
953 // Load the old header from BasicLock structure | |
304 | 954 movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes())); |
0 | 955 |
956 // Test for recursion | |
304 | 957 testptr(header_reg, header_reg); |
0 | 958 |
959 // zero for recursive case | |
960 jcc(Assembler::zero, done); | |
961 | |
962 // Atomic swap back the old header | |
963 if (os::is_MP()) lock(); | |
304 | 964 cmpxchgptr(header_reg, Address(obj_reg, 0)); |
0 | 965 |
966 // zero for recursive case | |
967 jcc(Assembler::zero, done); | |
968 | |
969 // Call the runtime routine for slow case. | |
304 | 970 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj |
0 | 971 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
972 | |
973 bind(done); | |
974 | |
975 restore_bcp(); | |
976 } | |
977 } | |
978 | |
979 | |
980 #ifndef CC_INTERP | |
981 | |
982 // Test ImethodDataPtr. If it is null, continue at the specified label | |
983 void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) { | |
984 assert(ProfileInterpreter, "must be profiling interpreter"); | |
304 | 985 movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize)); |
986 testptr(mdp, mdp); | |
0 | 987 jcc(Assembler::zero, zero_continue); |
988 } | |
989 | |
990 | |
991 // Set the method data pointer for the current bcp. | |
992 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { | |
993 assert(ProfileInterpreter, "must be profiling interpreter"); | |
994 Label zero_continue; | |
304 | 995 push(rax); |
996 push(rbx); | |
0 | 997 |
998 get_method(rbx); | |
999 // Test MDO to avoid the call if it is NULL. | |
304 | 1000 movptr(rax, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
1001 testptr(rax, rax); | |
0 | 1002 jcc(Assembler::zero, zero_continue); |
1003 | |
1004 // rbx,: method | |
1005 // rsi: bcp | |
1006 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi); | |
1007 // rax,: mdi | |
1008 | |
304 | 1009 movptr(rbx, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
1010 testptr(rbx, rbx); | |
0 | 1011 jcc(Assembler::zero, zero_continue); |
304 | 1012 addptr(rbx, in_bytes(methodDataOopDesc::data_offset())); |
1013 addptr(rbx, rax); | |
1014 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rbx); | |
0 | 1015 |
1016 bind(zero_continue); | |
304 | 1017 pop(rbx); |
1018 pop(rax); | |
0 | 1019 } |
1020 | |
1021 void InterpreterMacroAssembler::verify_method_data_pointer() { | |
1022 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1023 #ifdef ASSERT | |
1024 Label verify_continue; | |
304 | 1025 push(rax); |
1026 push(rbx); | |
1027 push(rcx); | |
1028 push(rdx); | |
0 | 1029 test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue |
1030 get_method(rbx); | |
1031 | |
1032 // If the mdp is valid, it will point to a DataLayout header which is | |
1033 // consistent with the bcp. The converse is highly probable also. | |
1034 load_unsigned_word(rdx, Address(rcx, in_bytes(DataLayout::bci_offset()))); | |
304 | 1035 addptr(rdx, Address(rbx, methodOopDesc::const_offset())); |
1036 lea(rdx, Address(rdx, constMethodOopDesc::codes_offset())); | |
1037 cmpptr(rdx, rsi); | |
0 | 1038 jcc(Assembler::equal, verify_continue); |
1039 // rbx,: method | |
1040 // rsi: bcp | |
1041 // rcx: mdp | |
1042 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx); | |
1043 bind(verify_continue); | |
304 | 1044 pop(rdx); |
1045 pop(rcx); | |
1046 pop(rbx); | |
1047 pop(rax); | |
0 | 1048 #endif // ASSERT |
1049 } | |
1050 | |
1051 | |
1052 void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) { | |
304 | 1053 // %%% this seems to be used to store counter data which is surely 32bits |
1054 // however 64bit side stores 64 bits which seems wrong | |
0 | 1055 assert(ProfileInterpreter, "must be profiling interpreter"); |
1056 Address data(mdp_in, constant); | |
304 | 1057 movptr(data, value); |
0 | 1058 } |
1059 | |
1060 | |
1061 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
1062 int constant, | |
1063 bool decrement) { | |
1064 // Counter address | |
1065 Address data(mdp_in, constant); | |
1066 | |
1067 increment_mdp_data_at(data, decrement); | |
1068 } | |
1069 | |
1070 | |
1071 void InterpreterMacroAssembler::increment_mdp_data_at(Address data, | |
1072 bool decrement) { | |
1073 | |
1074 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
1075 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1076 | |
304 | 1077 // %%% 64bit treats this as 64 bit which seems unlikely |
0 | 1078 if (decrement) { |
1079 // Decrement the register. Set condition codes. | |
1080 addl(data, -DataLayout::counter_increment); | |
1081 // If the decrement causes the counter to overflow, stay negative | |
1082 Label L; | |
1083 jcc(Assembler::negative, L); | |
1084 addl(data, DataLayout::counter_increment); | |
1085 bind(L); | |
1086 } else { | |
1087 assert(DataLayout::counter_increment == 1, | |
1088 "flow-free idiom only works with 1"); | |
1089 // Increment the register. Set carry flag. | |
1090 addl(data, DataLayout::counter_increment); | |
1091 // If the increment causes the counter to overflow, pull back by 1. | |
1092 sbbl(data, 0); | |
1093 } | |
1094 } | |
1095 | |
1096 | |
1097 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
1098 Register reg, | |
1099 int constant, | |
1100 bool decrement) { | |
1101 Address data(mdp_in, reg, Address::times_1, constant); | |
1102 | |
1103 increment_mdp_data_at(data, decrement); | |
1104 } | |
1105 | |
1106 | |
1107 void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) { | |
1108 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1109 int header_offset = in_bytes(DataLayout::header_offset()); | |
1110 int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant); | |
1111 // Set the flag | |
1112 orl(Address(mdp_in, header_offset), header_bits); | |
1113 } | |
1114 | |
1115 | |
1116 | |
1117 void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in, | |
1118 int offset, | |
1119 Register value, | |
1120 Register test_value_out, | |
1121 Label& not_equal_continue) { | |
1122 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1123 if (test_value_out == noreg) { | |
304 | 1124 cmpptr(value, Address(mdp_in, offset)); |
0 | 1125 } else { |
1126 // Put the test value into a register, so caller can use it: | |
304 | 1127 movptr(test_value_out, Address(mdp_in, offset)); |
1128 cmpptr(test_value_out, value); | |
0 | 1129 } |
1130 jcc(Assembler::notEqual, not_equal_continue); | |
1131 } | |
1132 | |
1133 | |
1134 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) { | |
1135 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1136 Address disp_address(mdp_in, offset_of_disp); | |
304 | 1137 addptr(mdp_in,disp_address); |
1138 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
0 | 1139 } |
1140 | |
1141 | |
1142 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) { | |
1143 assert(ProfileInterpreter, "must be profiling interpreter"); | |
1144 Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp); | |
304 | 1145 addptr(mdp_in, disp_address); |
1146 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
0 | 1147 } |
1148 | |
1149 | |
1150 void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) { | |
1151 assert(ProfileInterpreter, "must be profiling interpreter"); | |
304 | 1152 addptr(mdp_in, constant); |
1153 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
0 | 1154 } |
1155 | |
1156 | |
1157 void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) { | |
1158 assert(ProfileInterpreter, "must be profiling interpreter"); | |
304 | 1159 push(return_bci); // save/restore across call_VM |
0 | 1160 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci); |
304 | 1161 pop(return_bci); |
0 | 1162 } |
1163 | |
1164 | |
1165 void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) { | |
1166 if (ProfileInterpreter) { | |
1167 Label profile_continue; | |
1168 | |
1169 // If no method data exists, go to profile_continue. | |
1170 // Otherwise, assign to mdp | |
1171 test_method_data_pointer(mdp, profile_continue); | |
1172 | |
1173 // We are taking a branch. Increment the taken count. | |
1174 // We inline increment_mdp_data_at to return bumped_count in a register | |
1175 //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset())); | |
1176 Address data(mdp, in_bytes(JumpData::taken_offset())); | |
304 | 1177 |
1178 // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit | |
0 | 1179 movl(bumped_count,data); |
1180 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
1181 addl(bumped_count, DataLayout::counter_increment); | |
1182 sbbl(bumped_count, 0); | |
1183 movl(data,bumped_count); // Store back out | |
1184 | |
1185 // The method data pointer needs to be updated to reflect the new target. | |
1186 update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset())); | |
1187 bind (profile_continue); | |
1188 } | |
1189 } | |
1190 | |
1191 | |
1192 void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) { | |
1193 if (ProfileInterpreter) { | |
1194 Label profile_continue; | |
1195 | |
1196 // If no method data exists, go to profile_continue. | |
1197 test_method_data_pointer(mdp, profile_continue); | |
1198 | |
1199 // We are taking a branch. Increment the not taken count. | |
1200 increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset())); | |
1201 | |
1202 // The method data pointer needs to be updated to correspond to the next bytecode | |
1203 update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size())); | |
1204 bind (profile_continue); | |
1205 } | |
1206 } | |
1207 | |
1208 | |
1209 void InterpreterMacroAssembler::profile_call(Register mdp) { | |
1210 if (ProfileInterpreter) { | |
1211 Label profile_continue; | |
1212 | |
1213 // If no method data exists, go to profile_continue. | |
1214 test_method_data_pointer(mdp, profile_continue); | |
1215 | |
1216 // We are making a call. Increment the count. | |
1217 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
1218 | |
1219 // The method data pointer needs to be updated to reflect the new target. | |
1220 update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size())); | |
1221 bind (profile_continue); | |
1222 } | |
1223 } | |
1224 | |
1225 | |
1226 void InterpreterMacroAssembler::profile_final_call(Register mdp) { | |
1227 if (ProfileInterpreter) { | |
1228 Label profile_continue; | |
1229 | |
1230 // If no method data exists, go to profile_continue. | |
1231 test_method_data_pointer(mdp, profile_continue); | |
1232 | |
1233 // We are making a call. Increment the count. | |
1234 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
1235 | |
1236 // The method data pointer needs to be updated to reflect the new target. | |
1237 update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size())); | |
1238 bind (profile_continue); | |
1239 } | |
1240 } | |
1241 | |
1242 | |
1243 void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, Register reg2) { | |
1244 if (ProfileInterpreter) { | |
1245 Label profile_continue; | |
1246 | |
1247 // If no method data exists, go to profile_continue. | |
1248 test_method_data_pointer(mdp, profile_continue); | |
1249 | |
1250 // We are making a call. Increment the count. | |
1251 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
1252 | |
1253 // Record the receiver type. | |
1254 record_klass_in_profile(receiver, mdp, reg2); | |
1255 | |
1256 // The method data pointer needs to be updated to reflect the new target. | |
1257 update_mdp_by_constant(mdp, | |
1258 in_bytes(VirtualCallData:: | |
1259 virtual_call_data_size())); | |
1260 bind(profile_continue); | |
1261 } | |
1262 } | |
1263 | |
1264 | |
1265 void InterpreterMacroAssembler::record_klass_in_profile_helper( | |
1266 Register receiver, Register mdp, | |
1267 Register reg2, | |
1268 int start_row, Label& done) { | |
1269 int last_row = VirtualCallData::row_limit() - 1; | |
1270 assert(start_row <= last_row, "must be work left to do"); | |
1271 // Test this row for both the receiver and for null. | |
1272 // Take any of three different outcomes: | |
1273 // 1. found receiver => increment count and goto done | |
1274 // 2. found null => keep looking for case 1, maybe allocate this cell | |
1275 // 3. found something else => keep looking for cases 1 and 2 | |
1276 // Case 3 is handled by a recursive call. | |
1277 for (int row = start_row; row <= last_row; row++) { | |
1278 Label next_test; | |
1279 bool test_for_null_also = (row == start_row); | |
1280 | |
1281 // See if the receiver is receiver[n]. | |
1282 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row)); | |
1283 test_mdp_data_at(mdp, recvr_offset, receiver, | |
1284 (test_for_null_also ? reg2 : noreg), | |
1285 next_test); | |
1286 // (Reg2 now contains the receiver from the CallData.) | |
1287 | |
1288 // The receiver is receiver[n]. Increment count[n]. | |
1289 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row)); | |
1290 increment_mdp_data_at(mdp, count_offset); | |
1291 jmp(done); | |
1292 bind(next_test); | |
1293 | |
1294 if (row == start_row) { | |
1295 // Failed the equality check on receiver[n]... Test for null. | |
304 | 1296 testptr(reg2, reg2); |
0 | 1297 if (start_row == last_row) { |
1298 // The only thing left to do is handle the null case. | |
1299 jcc(Assembler::notZero, done); | |
1300 break; | |
1301 } | |
1302 // Since null is rare, make it be the branch-taken case. | |
1303 Label found_null; | |
1304 jcc(Assembler::zero, found_null); | |
1305 | |
1306 // Put all the "Case 3" tests here. | |
1307 record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done); | |
1308 | |
1309 // Found a null. Keep searching for a matching receiver, | |
1310 // but remember that this is an empty (unused) slot. | |
1311 bind(found_null); | |
1312 } | |
1313 } | |
1314 | |
1315 // In the fall-through case, we found no matching receiver, but we | |
1316 // observed the receiver[start_row] is NULL. | |
1317 | |
1318 // Fill in the receiver field and increment the count. | |
1319 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row)); | |
1320 set_mdp_data_at(mdp, recvr_offset, receiver); | |
1321 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row)); | |
304 | 1322 movptr(reg2, (int32_t)DataLayout::counter_increment); |
0 | 1323 set_mdp_data_at(mdp, count_offset, reg2); |
1324 jmp(done); | |
1325 } | |
1326 | |
1327 void InterpreterMacroAssembler::record_klass_in_profile(Register receiver, | |
1328 Register mdp, | |
1329 Register reg2) { | |
1330 assert(ProfileInterpreter, "must be profiling"); | |
1331 Label done; | |
1332 | |
1333 record_klass_in_profile_helper(receiver, mdp, reg2, 0, done); | |
1334 | |
1335 bind (done); | |
1336 } | |
1337 | |
1338 void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) { | |
1339 if (ProfileInterpreter) { | |
1340 Label profile_continue; | |
1341 uint row; | |
1342 | |
1343 // If no method data exists, go to profile_continue. | |
1344 test_method_data_pointer(mdp, profile_continue); | |
1345 | |
1346 // Update the total ret count. | |
1347 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
1348 | |
1349 for (row = 0; row < RetData::row_limit(); row++) { | |
1350 Label next_test; | |
1351 | |
1352 // See if return_bci is equal to bci[n]: | |
1353 test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci, | |
1354 noreg, next_test); | |
1355 | |
1356 // return_bci is equal to bci[n]. Increment the count. | |
1357 increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row))); | |
1358 | |
1359 // The method data pointer needs to be updated to reflect the new target. | |
1360 update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row))); | |
1361 jmp(profile_continue); | |
1362 bind(next_test); | |
1363 } | |
1364 | |
1365 update_mdp_for_ret(return_bci); | |
1366 | |
1367 bind (profile_continue); | |
1368 } | |
1369 } | |
1370 | |
1371 | |
1372 void InterpreterMacroAssembler::profile_null_seen(Register mdp) { | |
1373 if (ProfileInterpreter) { | |
1374 Label profile_continue; | |
1375 | |
1376 // If no method data exists, go to profile_continue. | |
1377 test_method_data_pointer(mdp, profile_continue); | |
1378 | |
1379 // The method data pointer needs to be updated. | |
1380 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
1381 if (TypeProfileCasts) { | |
1382 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
1383 } | |
1384 update_mdp_by_constant(mdp, mdp_delta); | |
1385 | |
1386 bind (profile_continue); | |
1387 } | |
1388 } | |
1389 | |
1390 | |
1391 void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) { | |
1392 if (ProfileInterpreter && TypeProfileCasts) { | |
1393 Label profile_continue; | |
1394 | |
1395 // If no method data exists, go to profile_continue. | |
1396 test_method_data_pointer(mdp, profile_continue); | |
1397 | |
1398 int count_offset = in_bytes(CounterData::count_offset()); | |
1399 // Back up the address, since we have already bumped the mdp. | |
1400 count_offset -= in_bytes(VirtualCallData::virtual_call_data_size()); | |
1401 | |
1402 // *Decrement* the counter. We expect to see zero or small negatives. | |
1403 increment_mdp_data_at(mdp, count_offset, true); | |
1404 | |
1405 bind (profile_continue); | |
1406 } | |
1407 } | |
1408 | |
1409 | |
1410 void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) | |
1411 { | |
1412 if (ProfileInterpreter) { | |
1413 Label profile_continue; | |
1414 | |
1415 // If no method data exists, go to profile_continue. | |
1416 test_method_data_pointer(mdp, profile_continue); | |
1417 | |
1418 // The method data pointer needs to be updated. | |
1419 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
1420 if (TypeProfileCasts) { | |
1421 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
1422 | |
1423 // Record the object type. | |
1424 record_klass_in_profile(klass, mdp, reg2); | |
1425 assert(reg2 == rdi, "we know how to fix this blown reg"); | |
1426 restore_locals(); // Restore EDI | |
1427 } | |
1428 update_mdp_by_constant(mdp, mdp_delta); | |
1429 | |
1430 bind(profile_continue); | |
1431 } | |
1432 } | |
1433 | |
1434 | |
1435 void InterpreterMacroAssembler::profile_switch_default(Register mdp) { | |
1436 if (ProfileInterpreter) { | |
1437 Label profile_continue; | |
1438 | |
1439 // If no method data exists, go to profile_continue. | |
1440 test_method_data_pointer(mdp, profile_continue); | |
1441 | |
1442 // Update the default case count | |
1443 increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset())); | |
1444 | |
1445 // The method data pointer needs to be updated. | |
1446 update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset())); | |
1447 | |
1448 bind (profile_continue); | |
1449 } | |
1450 } | |
1451 | |
1452 | |
1453 void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) { | |
1454 if (ProfileInterpreter) { | |
1455 Label profile_continue; | |
1456 | |
1457 // If no method data exists, go to profile_continue. | |
1458 test_method_data_pointer(mdp, profile_continue); | |
1459 | |
1460 // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes() | |
304 | 1461 movptr(reg2, (int32_t)in_bytes(MultiBranchData::per_case_size())); |
1462 // index is positive and so should have correct value if this code were | |
1463 // used on 64bits | |
1464 imulptr(index, reg2); | |
1465 addptr(index, in_bytes(MultiBranchData::case_array_offset())); | |
0 | 1466 |
1467 // Update the case count | |
1468 increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset())); | |
1469 | |
1470 // The method data pointer needs to be updated. | |
1471 update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset())); | |
1472 | |
1473 bind (profile_continue); | |
1474 } | |
1475 } | |
1476 | |
1477 #endif // !CC_INTERP | |
1478 | |
1479 | |
1480 | |
1481 void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) { | |
1482 if (state == atos) MacroAssembler::verify_oop(reg); | |
1483 } | |
1484 | |
1485 | |
1486 #ifndef CC_INTERP | |
1487 void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) { | |
1488 if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth); | |
1489 } | |
1490 | |
1491 #endif /* CC_INTERP */ | |
1492 | |
1493 | |
1494 void InterpreterMacroAssembler::notify_method_entry() { | |
1495 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
1496 // track stack depth. If it is possible to enter interp_only_mode we add | |
1497 // the code to check if the event should be sent. | |
1498 if (JvmtiExport::can_post_interpreter_events()) { | |
1499 Label L; | |
1500 get_thread(rcx); | |
1501 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
1502 testl(rcx,rcx); | |
1503 jcc(Assembler::zero, L); | |
1504 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry)); | |
1505 bind(L); | |
1506 } | |
1507 | |
1508 { | |
1509 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
1510 get_thread(rcx); | |
1511 get_method(rbx); | |
1512 call_VM_leaf( | |
1513 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx); | |
1514 } | |
610
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1515 |
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1516 // RedefineClasses() tracing support for obsolete method entry |
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1517 if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
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1518 get_thread(rcx); |
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1519 get_method(rbx); |
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1520 call_VM_leaf( |
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1521 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
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1522 rcx, rbx); |
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1523 } |
0 | 1524 } |
1525 | |
1526 | |
1527 void InterpreterMacroAssembler::notify_method_exit( | |
1528 TosState state, NotifyMethodExitMode mode) { | |
1529 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
1530 // track stack depth. If it is possible to enter interp_only_mode we add | |
1531 // the code to check if the event should be sent. | |
1532 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) { | |
1533 Label L; | |
1534 // Note: frame::interpreter_frame_result has a dependency on how the | |
1535 // method result is saved across the call to post_method_exit. If this | |
1536 // is changed then the interpreter_frame_result implementation will | |
1537 // need to be updated too. | |
1538 | |
1539 // For c++ interpreter the result is always stored at a known location in the frame | |
1540 // template interpreter will leave it on the top of the stack. | |
1541 NOT_CC_INTERP(push(state);) | |
1542 get_thread(rcx); | |
1543 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
1544 testl(rcx,rcx); | |
1545 jcc(Assembler::zero, L); | |
1546 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit)); | |
1547 bind(L); | |
1548 NOT_CC_INTERP(pop(state);) | |
1549 } | |
1550 | |
1551 { | |
1552 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
304 | 1553 NOT_CC_INTERP(push(state)); |
0 | 1554 get_thread(rbx); |
1555 get_method(rcx); | |
1556 call_VM_leaf( | |
1557 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), | |
1558 rbx, rcx); | |
304 | 1559 NOT_CC_INTERP(pop(state)); |
0 | 1560 } |
1561 } |