Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 12958:600c83f8e6a5
8023318: compiler/whitebox tests timeout with enabled TieredCompilation
Reviewed-by: kvn, twisti
author | iignatyev |
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date | Sat, 19 Oct 2013 21:54:46 +0400 |
parents | ce0cc25bc5e2 |
children | 5ccbab1c69f3 |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
28 #include "interpreter/interpreter.hpp" | |
29 #include "interpreter/interpreterGenerator.hpp" | |
30 #include "interpreter/interpreterRuntime.hpp" | |
31 #include "interpreter/templateTable.hpp" | |
32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
1972 | 35 #include "oops/oop.inline.hpp" |
36 #include "prims/jvmtiExport.hpp" | |
37 #include "prims/jvmtiThreadState.hpp" | |
38 #include "runtime/arguments.hpp" | |
39 #include "runtime/deoptimization.hpp" | |
40 #include "runtime/frame.inline.hpp" | |
41 #include "runtime/sharedRuntime.hpp" | |
42 #include "runtime/stubRoutines.hpp" | |
43 #include "runtime/synchronizer.hpp" | |
44 #include "runtime/timer.hpp" | |
45 #include "runtime/vframeArray.hpp" | |
46 #include "utilities/debug.hpp" | |
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47 #include "utilities/macros.hpp" |
0 | 48 |
49 #define __ _masm-> | |
50 | |
304 | 51 #ifndef CC_INTERP |
52 | |
0 | 53 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
54 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
55 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
56 | |
57 //----------------------------------------------------------------------------- | |
58 | |
59 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
60 address entry = __ pc(); | |
61 | |
62 #ifdef ASSERT | |
63 { | |
64 Label L; | |
304 | 65 __ lea(rax, Address(rbp, |
66 frame::interpreter_frame_monitor_block_top_offset * | |
67 wordSize)); | |
68 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
69 // grows negative) | |
0 | 70 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
71 __ stop ("interpreter frame not set up"); | |
72 __ bind(L); | |
73 } | |
74 #endif // ASSERT | |
75 // Restore bcp under the assumption that the current frame is still | |
76 // interpreted | |
77 __ restore_bcp(); | |
78 | |
79 // expression stack must be empty before entering the VM if an | |
80 // exception happened | |
81 __ empty_expression_stack(); | |
82 // throw exception | |
83 __ call_VM(noreg, | |
84 CAST_FROM_FN_PTR(address, | |
85 InterpreterRuntime::throw_StackOverflowError)); | |
86 return entry; | |
87 } | |
88 | |
89 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
90 const char* name) { | |
91 address entry = __ pc(); | |
92 // expression stack must be empty before entering the VM if an | |
93 // exception happened | |
94 __ empty_expression_stack(); | |
95 // setup parameters | |
96 // ??? convention: expect aberrant index in register ebx | |
97 __ lea(c_rarg1, ExternalAddress((address)name)); | |
98 __ call_VM(noreg, | |
99 CAST_FROM_FN_PTR(address, | |
100 InterpreterRuntime:: | |
101 throw_ArrayIndexOutOfBoundsException), | |
102 c_rarg1, rbx); | |
103 return entry; | |
104 } | |
105 | |
106 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
107 address entry = __ pc(); | |
108 | |
109 // object is at TOS | |
304 | 110 __ pop(c_rarg1); |
0 | 111 |
112 // expression stack must be empty before entering the VM if an | |
113 // exception happened | |
114 __ empty_expression_stack(); | |
115 | |
116 __ call_VM(noreg, | |
117 CAST_FROM_FN_PTR(address, | |
118 InterpreterRuntime:: | |
119 throw_ClassCastException), | |
120 c_rarg1); | |
121 return entry; | |
122 } | |
123 | |
124 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
125 const char* name, const char* message, bool pass_oop) { | |
126 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
127 address entry = __ pc(); | |
128 if (pass_oop) { | |
129 // object is at TOS | |
304 | 130 __ pop(c_rarg2); |
0 | 131 } |
132 // expression stack must be empty before entering the VM if an | |
133 // exception happened | |
134 __ empty_expression_stack(); | |
135 // setup parameters | |
136 __ lea(c_rarg1, ExternalAddress((address)name)); | |
137 if (pass_oop) { | |
138 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
139 InterpreterRuntime:: | |
140 create_klass_exception), | |
141 c_rarg1, c_rarg2); | |
142 } else { | |
143 // kind of lame ExternalAddress can't take NULL because | |
144 // external_word_Relocation will assert. | |
145 if (message != NULL) { | |
146 __ lea(c_rarg2, ExternalAddress((address)message)); | |
147 } else { | |
148 __ movptr(c_rarg2, NULL_WORD); | |
149 } | |
150 __ call_VM(rax, | |
151 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
152 c_rarg1, c_rarg2); | |
153 } | |
154 // throw exception | |
155 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
156 return entry; | |
157 } | |
158 | |
159 | |
160 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
161 address entry = __ pc(); | |
162 // NULL last_sp until next java call | |
304 | 163 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 164 __ dispatch_next(state); |
165 return entry; | |
166 } | |
167 | |
168 | |
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169 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
0 | 170 address entry = __ pc(); |
171 | |
172 // Restore stack bottom in case i2c adjusted stack | |
304 | 173 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
0 | 174 // and NULL it as marker that esp is now tos until next java call |
304 | 175 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 176 |
177 __ restore_bcp(); | |
178 __ restore_locals(); | |
304 | 179 |
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180 if (state == atos) { |
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181 Register mdp = rbx; |
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182 Register tmp = rcx; |
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183 __ profile_return_type(mdp, rax, tmp); |
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184 } |
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185 |
1108 | 186 Label L_got_cache, L_giant_index; |
187 if (EnableInvokeDynamic) { | |
188 __ cmpb(Address(r13, 0), Bytecodes::_invokedynamic); | |
189 __ jcc(Assembler::equal, L_giant_index); | |
190 } | |
1565 | 191 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
1108 | 192 __ bind(L_got_cache); |
0 | 193 __ movl(rbx, Address(rbx, rcx, |
1108 | 194 Address::times_ptr, |
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195 in_bytes(ConstantPoolCache::base_offset()) + |
0 | 196 3 * wordSize)); |
197 __ andl(rbx, 0xFF); | |
304 | 198 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 199 __ dispatch_next(state, step); |
1108 | 200 |
201 // out of the main line of code... | |
202 if (EnableInvokeDynamic) { | |
203 __ bind(L_giant_index); | |
1565 | 204 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
1108 | 205 __ jmp(L_got_cache); |
206 } | |
207 | |
0 | 208 return entry; |
209 } | |
210 | |
211 | |
212 address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, | |
213 int step) { | |
214 address entry = __ pc(); | |
215 // NULL last_sp until next java call | |
304 | 216 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 217 __ restore_bcp(); |
218 __ restore_locals(); | |
219 // handle exceptions | |
220 { | |
221 Label L; | |
304 | 222 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 223 __ jcc(Assembler::zero, L); |
224 __ call_VM(noreg, | |
225 CAST_FROM_FN_PTR(address, | |
226 InterpreterRuntime::throw_pending_exception)); | |
227 __ should_not_reach_here(); | |
228 __ bind(L); | |
229 } | |
230 __ dispatch_next(state, step); | |
231 return entry; | |
232 } | |
233 | |
234 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
235 int i = 0; | |
236 switch (type) { | |
237 case T_BOOLEAN: i = 0; break; | |
238 case T_CHAR : i = 1; break; | |
239 case T_BYTE : i = 2; break; | |
240 case T_SHORT : i = 3; break; | |
241 case T_INT : i = 4; break; | |
242 case T_LONG : i = 5; break; | |
243 case T_VOID : i = 6; break; | |
244 case T_FLOAT : i = 7; break; | |
245 case T_DOUBLE : i = 8; break; | |
246 case T_OBJECT : i = 9; break; | |
247 case T_ARRAY : i = 9; break; | |
248 default : ShouldNotReachHere(); | |
249 } | |
250 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
251 "index out of bounds"); | |
252 return i; | |
253 } | |
254 | |
255 | |
256 address TemplateInterpreterGenerator::generate_result_handler_for( | |
257 BasicType type) { | |
258 address entry = __ pc(); | |
259 switch (type) { | |
260 case T_BOOLEAN: __ c2bool(rax); break; | |
261 case T_CHAR : __ movzwl(rax, rax); break; | |
262 case T_BYTE : __ sign_extend_byte(rax); break; | |
263 case T_SHORT : __ sign_extend_short(rax); break; | |
264 case T_INT : /* nothing to do */ break; | |
265 case T_LONG : /* nothing to do */ break; | |
266 case T_VOID : /* nothing to do */ break; | |
267 case T_FLOAT : /* nothing to do */ break; | |
268 case T_DOUBLE : /* nothing to do */ break; | |
269 case T_OBJECT : | |
270 // retrieve result from frame | |
304 | 271 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
0 | 272 // and verify it |
273 __ verify_oop(rax); | |
274 break; | |
275 default : ShouldNotReachHere(); | |
276 } | |
277 __ ret(0); // return from result handler | |
278 return entry; | |
279 } | |
280 | |
281 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
282 TosState state, | |
283 address runtime_entry) { | |
284 address entry = __ pc(); | |
285 __ push(state); | |
286 __ call_VM(noreg, runtime_entry); | |
287 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
288 return entry; | |
289 } | |
290 | |
291 | |
292 | |
293 // Helpers for commoning out cases in the various type of method entries. | |
294 // | |
295 | |
296 | |
297 // increment invocation count & check for overflow | |
298 // | |
299 // Note: checking for negative value instead of overflow | |
300 // so we have a 'sticky' overflow test | |
301 // | |
302 // rbx: method | |
303 // ecx: invocation counter | |
304 // | |
305 void InterpreterGenerator::generate_counter_incr( | |
306 Label* overflow, | |
307 Label* profile_method, | |
308 Label* profile_method_continue) { | |
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309 Label done; |
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310 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
1783 | 311 if (TieredCompilation) { |
312 int increment = InvocationCounter::count_increment; | |
313 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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314 Label no_mdo; |
1783 | 315 if (ProfileInterpreter) { |
316 // Are we profiling? | |
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317 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
1783 | 318 __ testptr(rax, rax); |
319 __ jccb(Assembler::zero, no_mdo); | |
320 // Increment counter in the MDO | |
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321 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
1783 | 322 in_bytes(InvocationCounter::counter_offset())); |
323 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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324 __ jmp(done); |
1783 | 325 } |
326 __ bind(no_mdo); | |
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327 // Increment counter in MethodCounters |
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328 const Address invocation_counter(rax, |
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329 MethodCounters::invocation_counter_offset() + |
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330 InvocationCounter::counter_offset()); |
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331 __ get_method_counters(rbx, rax, done); |
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332 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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333 false, Assembler::zero, overflow); |
1783 | 334 __ bind(done); |
335 } else { | |
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336 const Address backedge_counter(rax, |
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337 MethodCounters::backedge_counter_offset() + |
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338 InvocationCounter::counter_offset()); |
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339 const Address invocation_counter(rax, |
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340 MethodCounters::invocation_counter_offset() + |
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341 InvocationCounter::counter_offset()); |
0 | 342 |
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343 __ get_method_counters(rbx, rax, done); |
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344 |
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345 if (ProfileInterpreter) { |
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346 __ incrementl(Address(rax, |
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347 MethodCounters::interpreter_invocation_counter_offset())); |
1783 | 348 } |
349 // Update standard invocation counters | |
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350 __ movl(rcx, invocation_counter); |
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351 __ incrementl(rcx, InvocationCounter::count_increment); |
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352 __ movl(invocation_counter, rcx); // save invocation count |
0 | 353 |
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354 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 355 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
0 | 356 |
1783 | 357 __ addl(rcx, rax); // add both counters |
0 | 358 |
1783 | 359 // profile_method is non-null only for interpreted method so |
360 // profile_method != NULL == !native_call | |
361 | |
362 if (ProfileInterpreter && profile_method != NULL) { | |
363 // Test to see if we should create a method data oop | |
364 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
365 __ jcc(Assembler::less, *profile_method_continue); | |
0 | 366 |
1783 | 367 // if no method data exists, go to profile_method |
368 __ test_method_data_pointer(rax, *profile_method); | |
369 } | |
370 | |
371 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
372 __ jcc(Assembler::aboveEqual, *overflow); | |
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373 __ bind(done); |
0 | 374 } |
375 } | |
376 | |
377 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
378 | |
379 // Asm interpreter on entry | |
380 // r14 - locals | |
381 // r13 - bcp | |
382 // rbx - method | |
383 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
384 // rbp - interpreter frame | |
385 | |
386 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
387 // Everything as it was on entry | |
388 // rdx is not restored. Doesn't appear to really be set. | |
389 | |
390 // InterpreterRuntime::frequency_counter_overflow takes two | |
391 // arguments, the first (thread) is passed by call_VM, the second | |
392 // indicates if the counter overflow occurs at a backwards branch | |
393 // (NULL bcp). We pass zero for it. The call returns the address | |
394 // of the verified entry point for the method or NULL if the | |
395 // compilation did not complete (either went background or bailed | |
396 // out). | |
397 __ movl(c_rarg1, 0); | |
398 __ call_VM(noreg, | |
399 CAST_FROM_FN_PTR(address, | |
400 InterpreterRuntime::frequency_counter_overflow), | |
401 c_rarg1); | |
402 | |
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403 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 404 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
405 // and jump to the interpreted entry. | |
406 __ jmp(*do_continue, relocInfo::none); | |
407 } | |
408 | |
409 // See if we've got enough room on the stack for locals plus overhead. | |
410 // The expression stack grows down incrementally, so the normal guard | |
411 // page mechanism will work for that. | |
412 // | |
413 // NOTE: Since the additional locals are also always pushed (wasn't | |
414 // obvious in generate_method_entry) so the guard should work for them | |
415 // too. | |
416 // | |
417 // Args: | |
418 // rdx: number of additional locals this frame needs (what we must check) | |
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419 // rbx: Method* |
0 | 420 // |
421 // Kills: | |
422 // rax | |
423 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
424 | |
425 // monitor entry size: see picture of stack set | |
426 // (generate_method_entry) and frame_amd64.hpp | |
427 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
428 | |
429 // total overhead size: entry_size + (saved rbp through expr stack | |
430 // bottom). be sure to change this if you add/subtract anything | |
431 // to/from the overhead area | |
432 const int overhead_size = | |
433 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
434 | |
435 const int page_size = os::vm_page_size(); | |
436 | |
437 Label after_frame_check; | |
438 | |
439 // see if the frame is greater than one page in size. If so, | |
440 // then we need to verify there is enough stack space remaining | |
441 // for the additional locals. | |
1506 | 442 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
0 | 443 __ jcc(Assembler::belowEqual, after_frame_check); |
444 | |
445 // compute rsp as if this were going to be the last frame on | |
446 // the stack before the red zone | |
447 | |
448 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
449 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
450 | |
451 // locals + overhead, in bytes | |
304 | 452 __ mov(rax, rdx); |
1506 | 453 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
304 | 454 __ addptr(rax, overhead_size); |
0 | 455 |
456 #ifdef ASSERT | |
457 Label stack_base_okay, stack_size_okay; | |
458 // verify that thread stack base is non-zero | |
304 | 459 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 460 __ jcc(Assembler::notEqual, stack_base_okay); |
461 __ stop("stack base is zero"); | |
462 __ bind(stack_base_okay); | |
463 // verify that thread stack size is non-zero | |
304 | 464 __ cmpptr(stack_size, 0); |
0 | 465 __ jcc(Assembler::notEqual, stack_size_okay); |
466 __ stop("stack size is zero"); | |
467 __ bind(stack_size_okay); | |
468 #endif | |
469 | |
470 // Add stack base to locals and subtract stack size | |
304 | 471 __ addptr(rax, stack_base); |
472 __ subptr(rax, stack_size); | |
0 | 473 |
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474 // Use the maximum number of pages we might bang. |
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475 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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476 (StackRedPages+StackYellowPages); |
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477 |
0 | 478 // add in the red and yellow zone sizes |
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479 __ addptr(rax, max_pages * page_size); |
0 | 480 |
481 // check against the current stack bottom | |
304 | 482 __ cmpptr(rsp, rax); |
0 | 483 __ jcc(Assembler::above, after_frame_check); |
484 | |
4743 | 485 // Restore sender's sp as SP. This is necessary if the sender's |
486 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
487 // and safer anyway in case of JSR292 adaptations. | |
488 | |
489 __ pop(rax); // return address must be moved if SP is changed | |
490 __ mov(rsp, r13); | |
491 __ push(rax); | |
492 | |
493 // Note: the restored frame is not necessarily interpreted. | |
494 // Use the shared runtime version of the StackOverflowError. | |
495 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
496 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 497 |
498 // all done with frame size check | |
499 __ bind(after_frame_check); | |
500 } | |
501 | |
502 // Allocate monitor and lock method (asm interpreter) | |
503 // | |
504 // Args: | |
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505 // rbx: Method* |
0 | 506 // r14: locals |
507 // | |
508 // Kills: | |
509 // rax | |
510 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
511 // rscratch1, rscratch2 (scratch regs) | |
512 void InterpreterGenerator::lock_method(void) { | |
513 // synchronize method | |
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514 const Address access_flags(rbx, Method::access_flags_offset()); |
0 | 515 const Address monitor_block_top( |
516 rbp, | |
517 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
518 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
519 | |
520 #ifdef ASSERT | |
521 { | |
522 Label L; | |
523 __ movl(rax, access_flags); | |
524 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
525 __ jcc(Assembler::notZero, L); | |
526 __ stop("method doesn't need synchronization"); | |
527 __ bind(L); | |
528 } | |
529 #endif // ASSERT | |
530 | |
531 // get synchronization object | |
532 { | |
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533 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 534 Label done; |
535 __ movl(rax, access_flags); | |
536 __ testl(rax, JVM_ACC_STATIC); | |
537 // get receiver (assume this is frequent case) | |
304 | 538 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
0 | 539 __ jcc(Assembler::zero, done); |
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540 __ movptr(rax, Address(rbx, Method::const_offset())); |
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541 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
304 | 542 __ movptr(rax, Address(rax, |
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543 ConstantPool::pool_holder_offset_in_bytes())); |
304 | 544 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 545 |
546 #ifdef ASSERT | |
547 { | |
548 Label L; | |
304 | 549 __ testptr(rax, rax); |
0 | 550 __ jcc(Assembler::notZero, L); |
551 __ stop("synchronization object is NULL"); | |
552 __ bind(L); | |
553 } | |
554 #endif // ASSERT | |
555 | |
556 __ bind(done); | |
557 } | |
558 | |
559 // add space for monitor & lock | |
304 | 560 __ subptr(rsp, entry_size); // add space for a monitor entry |
561 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
0 | 562 // store object |
304 | 563 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
564 __ movptr(c_rarg1, rsp); // object address | |
0 | 565 __ lock_object(c_rarg1); |
566 } | |
567 | |
568 // Generate a fixed interpreter frame. This is identical setup for | |
569 // interpreted methods and for native methods hence the shared code. | |
570 // | |
571 // Args: | |
572 // rax: return address | |
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573 // rbx: Method* |
0 | 574 // r14: pointer to locals |
575 // r13: sender sp | |
576 // rdx: cp cache | |
577 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
578 // initialize fixed part of activation frame | |
304 | 579 __ push(rax); // save return address |
0 | 580 __ enter(); // save old & set new rbp |
304 | 581 __ push(r13); // set sender sp |
582 __ push((int)NULL_WORD); // leave last_sp as null | |
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583 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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584 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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585 __ push(rbx); // save Method* |
0 | 586 if (ProfileInterpreter) { |
587 Label method_data_continue; | |
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588 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 589 __ testptr(rdx, rdx); |
0 | 590 __ jcc(Assembler::zero, method_data_continue); |
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591 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 592 __ bind(method_data_continue); |
304 | 593 __ push(rdx); // set the mdp (method data pointer) |
0 | 594 } else { |
304 | 595 __ push(0); |
0 | 596 } |
597 | |
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598 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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599 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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600 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 601 __ push(rdx); // set constant pool cache |
602 __ push(r14); // set locals pointer | |
0 | 603 if (native_call) { |
304 | 604 __ push(0); // no bcp |
0 | 605 } else { |
304 | 606 __ push(r13); // set bcp |
0 | 607 } |
304 | 608 __ push(0); // reserve word for pointer to expression stack bottom |
609 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 610 } |
611 | |
612 // End of helpers | |
613 | |
304 | 614 // Various method entries |
615 //------------------------------------------------------------------------------------------------------------------------ | |
616 // | |
617 // | |
618 | |
619 // Call an accessor method (assuming it is resolved, otherwise drop | |
620 // into vanilla (slow path) entry | |
621 address InterpreterGenerator::generate_accessor_entry(void) { | |
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622 // rbx: Method* |
304 | 623 |
624 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
625 | |
626 address entry_point = __ pc(); | |
627 Label xreturn_path; | |
628 | |
629 // do fastpath for resolved accessor methods | |
630 if (UseFastAccessorMethods) { | |
631 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
632 // thereof; parameter size = 1 | |
633 // Note: We can only use this code if the getfield has been resolved | |
634 // and if we don't have a null-pointer exception => check for | |
635 // these conditions first and use slow path if necessary. | |
636 Label slow_path; | |
637 // If we need a safepoint check, generate full interpreter entry. | |
638 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
639 SafepointSynchronize::_not_synchronized); | |
640 | |
641 __ jcc(Assembler::notEqual, slow_path); | |
642 // rbx: method | |
643 __ movptr(rax, Address(rsp, wordSize)); | |
644 | |
645 // check if local 0 != NULL and read field | |
646 __ testptr(rax, rax); | |
647 __ jcc(Assembler::zero, slow_path); | |
648 | |
649 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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650 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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651 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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652 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
304 | 653 // Shift codes right to get the index on the right. |
654 // The bytecode fetched looks like <index><0xb4><0x2a> | |
655 __ shrl(rdx, 2 * BitsPerByte); | |
656 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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657 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
304 | 658 |
659 // rax: local 0 | |
660 // rbx: method | |
661 // rdx: constant pool cache index | |
662 // rdi: constant pool cache | |
663 | |
664 // check if getfield has been resolved and read constant pool cache entry | |
665 // check the validity of the cache entry by testing whether _indices field | |
666 // contains Bytecode::_getfield in b1 byte. | |
667 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
668 "adjust shift below"); | |
669 __ movl(rcx, | |
670 Address(rdi, | |
671 rdx, | |
672 Address::times_8, | |
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673 ConstantPoolCache::base_offset() + |
304 | 674 ConstantPoolCacheEntry::indices_offset())); |
675 __ shrl(rcx, 2 * BitsPerByte); | |
676 __ andl(rcx, 0xFF); | |
677 __ cmpl(rcx, Bytecodes::_getfield); | |
678 __ jcc(Assembler::notEqual, slow_path); | |
679 | |
680 // Note: constant pool entry is not valid before bytecode is resolved | |
681 __ movptr(rcx, | |
682 Address(rdi, | |
683 rdx, | |
684 Address::times_8, | |
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685 ConstantPoolCache::base_offset() + |
304 | 686 ConstantPoolCacheEntry::f2_offset())); |
687 // edx: flags | |
688 __ movl(rdx, | |
689 Address(rdi, | |
690 rdx, | |
691 Address::times_8, | |
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692 ConstantPoolCache::base_offset() + |
304 | 693 ConstantPoolCacheEntry::flags_offset())); |
694 | |
695 Label notObj, notInt, notByte, notShort; | |
696 const Address field_address(rax, rcx, Address::times_1); | |
697 | |
698 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
699 // because they are different sizes. | |
700 // Use the type from the constant pool cache | |
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701 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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702 // Make sure we don't need to mask edx after the above shift |
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703 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 704 |
705 __ cmpl(rdx, atos); | |
706 __ jcc(Assembler::notEqual, notObj); | |
707 // atos | |
708 __ load_heap_oop(rax, field_address); | |
709 __ jmp(xreturn_path); | |
710 | |
711 __ bind(notObj); | |
712 __ cmpl(rdx, itos); | |
713 __ jcc(Assembler::notEqual, notInt); | |
714 // itos | |
715 __ movl(rax, field_address); | |
716 __ jmp(xreturn_path); | |
717 | |
718 __ bind(notInt); | |
719 __ cmpl(rdx, btos); | |
720 __ jcc(Assembler::notEqual, notByte); | |
721 // btos | |
722 __ load_signed_byte(rax, field_address); | |
723 __ jmp(xreturn_path); | |
724 | |
725 __ bind(notByte); | |
726 __ cmpl(rdx, stos); | |
727 __ jcc(Assembler::notEqual, notShort); | |
728 // stos | |
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729 __ load_signed_short(rax, field_address); |
304 | 730 __ jmp(xreturn_path); |
731 | |
732 __ bind(notShort); | |
733 #ifdef ASSERT | |
734 Label okay; | |
735 __ cmpl(rdx, ctos); | |
736 __ jcc(Assembler::equal, okay); | |
737 __ stop("what type is this?"); | |
738 __ bind(okay); | |
739 #endif | |
740 // ctos | |
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741 __ load_unsigned_short(rax, field_address); |
304 | 742 |
743 __ bind(xreturn_path); | |
744 | |
745 // _ireturn/_areturn | |
746 __ pop(rdi); | |
747 __ mov(rsp, r13); | |
748 __ jmp(rdi); | |
749 __ ret(0); | |
750 | |
751 // generate a vanilla interpreter entry as the slow path | |
752 __ bind(slow_path); | |
753 (void) generate_normal_entry(false); | |
754 } else { | |
755 (void) generate_normal_entry(false); | |
756 } | |
757 | |
758 return entry_point; | |
759 } | |
760 | |
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761 // Method entry for java.lang.ref.Reference.get. |
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762 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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763 #if INCLUDE_ALL_GCS |
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764 // Code: _aload_0, _getfield, _areturn |
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765 // parameter size = 1 |
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766 // |
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767 // The code that gets generated by this routine is split into 2 parts: |
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768 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
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769 // 2. The slow path - which is an expansion of the regular method entry. |
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770 // |
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771 // Notes:- |
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772 // * In the G1 code we do not check whether we need to block for |
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773 // a safepoint. If G1 is enabled then we must execute the specialized |
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774 // code for Reference.get (except when the Reference object is null) |
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775 // so that we can log the value in the referent field with an SATB |
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776 // update buffer. |
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777 // If the code for the getfield template is modified so that the |
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778 // G1 pre-barrier code is executed when the current method is |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
779 // Reference.get() then going through the normal method entry |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
780 // will be fine. |
e1162778c1c8
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|
781 // * The G1 code can, however, check the receiver object (the instance |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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782 // of java.lang.Reference) and jump to the slow path if null. If the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
783 // Reference object is null then we obviously cannot fetch the referent |
e1162778c1c8
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johnc
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784 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
785 // regular method entry code to generate the NPE. |
e1162778c1c8
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|
786 // |
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|
787 // This code is based on generate_accessor_enty. |
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|
788 // |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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789 // rbx: Method* |
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johnc
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790 |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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791 // r13: senderSP must preserve for slow path, set SP to it on fast path |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
792 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
793 address entry = __ pc(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
794 |
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johnc
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|
795 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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johnc
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|
796 guarantee(referent_offset > 0, "referent offset not initialized"); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
797 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
798 if (UseG1GC) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
799 Label slow_path; |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
800 // rbx: method |
e1162778c1c8
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johnc
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|
801 |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
802 // Check if local 0 != NULL |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
803 // If the receiver is null then it is OK to jump to the slow path. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
804 __ movptr(rax, Address(rsp, wordSize)); |
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johnc
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|
805 |
e1162778c1c8
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johnc
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|
806 __ testptr(rax, rax); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
807 __ jcc(Assembler::zero, slow_path); |
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|
808 |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
809 // rax: local 0 |
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|
810 // rbx: method (but can be used as scratch now) |
e1162778c1c8
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|
811 // rdx: scratch |
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|
812 // rdi: scratch |
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johnc
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|
813 |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
814 // Generate the G1 pre-barrier code to log the value of |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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815 // the referent field in an SATB buffer. |
e1162778c1c8
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johnc
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|
816 |
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|
817 // Load the value of the referent field. |
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|
818 const Address field_address(rax, referent_offset); |
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|
819 __ load_heap_oop(rax, field_address); |
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|
820 |
e1162778c1c8
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johnc
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|
821 // Generate the G1 pre-barrier code to log the value of |
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|
822 // the referent field in an SATB buffer. |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
823 __ g1_write_barrier_pre(noreg /* obj */, |
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|
824 rax /* pre_val */, |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
825 r15_thread /* thread */, |
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826 rbx /* tmp */, |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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827 true /* tosca_live */, |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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828 true /* expand_call */); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
829 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
830 // _areturn |
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|
831 __ pop(rdi); // get return address |
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johnc
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|
832 __ mov(rsp, r13); // set sp to sender sp |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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833 __ jmp(rdi); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
834 __ ret(0); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
835 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
836 // generate a vanilla interpreter entry as the slow path |
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|
837 __ bind(slow_path); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
838 (void) generate_normal_entry(false); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
839 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
840 return entry; |
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johnc
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|
841 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7402
diff
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|
842 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
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johnc
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|
843 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
844 // If G1 is not enabled then attempt to go through the accessor entry point |
e1162778c1c8
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|
845 // Reference.get is an accessor |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
846 return generate_accessor_entry(); |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
847 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
848 |
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|
849 /** |
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|
850 * Method entry for static native methods: |
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851 * int java.util.zip.CRC32.update(int crc, int b) |
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|
852 */ |
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|
853 address InterpreterGenerator::generate_CRC32_update_entry() { |
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|
854 if (UseCRC32Intrinsics) { |
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855 address entry = __ pc(); |
b800986664f4
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|
856 |
b800986664f4
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|
857 // rbx,: Method* |
12070
afbe18ae0905
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|
858 // r13: senderSP must preserved for slow path, set SP to it on fast path |
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
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|
859 // c_rarg0: scratch (rdi on non-Win64, rcx on Win64) |
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
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860 // c_rarg1: scratch (rsi on non-Win64, rdx on Win64) |
11080
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861 |
b800986664f4
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862 Label slow_path; |
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863 // If we need a safepoint check, generate full interpreter entry. |
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864 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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865 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
b800986664f4
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866 SafepointSynchronize::_not_synchronized); |
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867 __ jcc(Assembler::notEqual, slow_path); |
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868 |
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|
869 // We don't generate local frame and don't align stack because |
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870 // we call stub code and there is no safepoint on this path. |
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|
871 |
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872 // Load parameters |
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|
873 const Register crc = rax; // crc |
12070
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874 const Register val = c_rarg0; // source java byte value |
afbe18ae0905
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875 const Register tbl = c_rarg1; // scratch |
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876 |
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877 // Arguments are reversed on java expression stack |
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878 __ movl(val, Address(rsp, wordSize)); // byte value |
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879 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
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|
880 |
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|
881 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
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882 __ notl(crc); // ~crc |
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883 __ update_byte_crc32(crc, val, tbl); |
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|
884 __ notl(crc); // ~crc |
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|
885 // result in rax |
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|
886 |
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|
887 // _areturn |
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|
888 __ pop(rdi); // get return address |
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889 __ mov(rsp, r13); // set sp to sender sp |
11080
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890 __ jmp(rdi); |
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|
891 |
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892 // generate a vanilla native entry as the slow path |
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|
893 __ bind(slow_path); |
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|
894 |
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895 (void) generate_native_entry(false); |
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896 |
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897 return entry; |
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898 } |
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899 return generate_native_entry(false); |
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900 } |
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901 |
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902 /** |
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903 * Method entry for static native methods: |
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904 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
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905 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
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906 */ |
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907 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
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908 if (UseCRC32Intrinsics) { |
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909 address entry = __ pc(); |
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910 |
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911 // rbx,: Method* |
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912 // r13: senderSP must preserved for slow path, set SP to it on fast path |
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913 |
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914 Label slow_path; |
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915 // If we need a safepoint check, generate full interpreter entry. |
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916 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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917 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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918 SafepointSynchronize::_not_synchronized); |
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919 __ jcc(Assembler::notEqual, slow_path); |
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920 |
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921 // We don't generate local frame and don't align stack because |
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922 // we call stub code and there is no safepoint on this path. |
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923 |
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924 // Load parameters |
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925 const Register crc = c_rarg0; // crc |
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926 const Register buf = c_rarg1; // source java byte array address |
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927 const Register len = c_rarg2; // length |
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928 const Register off = len; // offset (never overlaps with 'len') |
11080
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929 |
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930 // Arguments are reversed on java expression stack |
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931 // Calculate address of start element |
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932 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
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933 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
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934 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
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935 __ addq(buf, off); // + offset |
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936 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
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937 } else { |
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938 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
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939 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
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940 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
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941 __ addq(buf, off); // + offset |
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942 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
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943 } |
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944 // Can now load 'len' since we're finished with 'off' |
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945 __ movl(len, Address(rsp, wordSize)); // Length |
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946 |
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947 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
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948 // result in rax |
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949 |
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950 // _areturn |
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951 __ pop(rdi); // get return address |
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952 __ mov(rsp, r13); // set sp to sender sp |
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953 __ jmp(rdi); |
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954 |
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955 // generate a vanilla native entry as the slow path |
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956 __ bind(slow_path); |
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957 |
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958 (void) generate_native_entry(false); |
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959 |
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960 return entry; |
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961 } |
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962 return generate_native_entry(false); |
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963 } |
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964 |
0 | 965 // Interpreter stub for calling a native method. (asm interpreter) |
966 // This sets up a somewhat different looking stack for calling the | |
967 // native method than the typical interpreter frame setup. | |
968 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
969 // determine code generation flags | |
970 bool inc_counter = UseCompiler || CountCompiledCalls; | |
971 | |
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972 // rbx: Method* |
0 | 973 // r13: sender sp |
974 | |
975 address entry_point = __ pc(); | |
976 | |
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977 const Address constMethod (rbx, Method::const_offset()); |
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978 const Address access_flags (rbx, Method::access_flags_offset()); |
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979 const Address size_of_parameters(rcx, ConstMethod:: |
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980 size_of_parameters_offset()); |
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981 |
0 | 982 |
983 // get parameter size (always needed) | |
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984 __ movptr(rcx, constMethod); |
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985 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 986 |
987 // native calls don't need the stack size check since they have no | |
988 // expression stack and the arguments are already on the stack and | |
989 // we only add a handful of words to the stack | |
990 | |
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991 // rbx: Method* |
0 | 992 // rcx: size of parameters |
993 // r13: sender sp | |
304 | 994 __ pop(rax); // get return address |
0 | 995 |
996 // for natives the size of locals is zero | |
997 | |
998 // compute beginning of parameters (r14) | |
304 | 999 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1000 |
1001 // add 2 zero-initialized slots for native calls | |
1002 // initialize result_handler slot | |
304 | 1003 __ push((int) NULL_WORD); |
0 | 1004 // slot for oop temp |
1005 // (static native method holder mirror/jni oop result) | |
304 | 1006 __ push((int) NULL_WORD); |
0 | 1007 |
1008 // initialize fixed part of activation frame | |
1009 generate_fixed_frame(true); | |
1010 | |
1011 // make sure method is native & not abstract | |
1012 #ifdef ASSERT | |
1013 __ movl(rax, access_flags); | |
1014 { | |
1015 Label L; | |
1016 __ testl(rax, JVM_ACC_NATIVE); | |
1017 __ jcc(Assembler::notZero, L); | |
1018 __ stop("tried to execute non-native method as native"); | |
1019 __ bind(L); | |
1020 } | |
1021 { | |
1022 Label L; | |
1023 __ testl(rax, JVM_ACC_ABSTRACT); | |
1024 __ jcc(Assembler::zero, L); | |
1025 __ stop("tried to execute abstract method in interpreter"); | |
1026 __ bind(L); | |
1027 } | |
1028 #endif | |
1029 | |
1030 // Since at this point in the method invocation the exception handler | |
1031 // would try to exit the monitor of synchronized methods which hasn't | |
1032 // been entered yet, we set the thread local variable | |
1033 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1034 // check this flag. | |
1035 | |
1036 const Address do_not_unlock_if_synchronized(r15_thread, | |
1037 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1038 __ movbool(do_not_unlock_if_synchronized, true); | |
1039 | |
1040 // increment invocation count & check for overflow | |
1041 Label invocation_counter_overflow; | |
1042 if (inc_counter) { | |
1043 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
1044 } | |
1045 | |
1046 Label continue_after_compile; | |
1047 __ bind(continue_after_compile); | |
1048 | |
1049 bang_stack_shadow_pages(true); | |
1050 | |
1051 // reset the _do_not_unlock_if_synchronized flag | |
1052 __ movbool(do_not_unlock_if_synchronized, false); | |
1053 | |
1054 // check for synchronized methods | |
1055 // Must happen AFTER invocation_counter check and stack overflow check, | |
1056 // so method is not locked if overflows. | |
1057 if (synchronized) { | |
1058 lock_method(); | |
1059 } else { | |
1060 // no synchronization necessary | |
1061 #ifdef ASSERT | |
1062 { | |
1063 Label L; | |
1064 __ movl(rax, access_flags); | |
1065 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1066 __ jcc(Assembler::zero, L); | |
1067 __ stop("method needs synchronization"); | |
1068 __ bind(L); | |
1069 } | |
1070 #endif | |
1071 } | |
1072 | |
1073 // start execution | |
1074 #ifdef ASSERT | |
1075 { | |
1076 Label L; | |
1077 const Address monitor_block_top(rbp, | |
1078 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1079 __ movptr(rax, monitor_block_top); |
1080 __ cmpptr(rax, rsp); | |
0 | 1081 __ jcc(Assembler::equal, L); |
1082 __ stop("broken stack frame setup in interpreter"); | |
1083 __ bind(L); | |
1084 } | |
1085 #endif | |
1086 | |
1087 // jvmti support | |
1088 __ notify_method_entry(); | |
1089 | |
1090 // work registers | |
1091 const Register method = rbx; | |
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1092 const Register t = r11; |
0 | 1093 |
1094 // allocate space for parameters | |
1095 __ get_method(method); | |
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1096 __ movptr(t, Address(method, Method::const_offset())); |
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1097 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
1506 | 1098 __ shll(t, Interpreter::logStackElementSize); |
0 | 1099 |
304 | 1100 __ subptr(rsp, t); |
1101 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
605 | 1102 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
0 | 1103 |
1104 // get signature handler | |
1105 { | |
1106 Label L; | |
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1107 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1108 __ testptr(t, t); |
0 | 1109 __ jcc(Assembler::notZero, L); |
1110 __ call_VM(noreg, | |
1111 CAST_FROM_FN_PTR(address, | |
1112 InterpreterRuntime::prepare_native_call), | |
1113 method); | |
1114 __ get_method(method); | |
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1115 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1116 __ bind(L); |
1117 } | |
1118 | |
1119 // call signature handler | |
1120 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
1121 "adjust this code"); | |
1122 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
1123 "adjust this code"); | |
1124 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
1125 "adjust this code"); | |
1126 | |
1127 // The generated handlers do not touch RBX (the method oop). | |
1128 // However, large signatures cannot be cached and are generated | |
1129 // each time here. The slow-path generator can do a GC on return, | |
1130 // so we must reload it after the call. | |
1131 __ call(t); | |
1132 __ get_method(method); // slow path can do a GC, reload RBX | |
1133 | |
1134 | |
1135 // result handler is in rax | |
1136 // set result handler | |
304 | 1137 __ movptr(Address(rbp, |
1138 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
1139 rax); | |
0 | 1140 |
1141 // pass mirror handle if static call | |
1142 { | |
1143 Label L; | |
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1144 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1145 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1146 __ testl(t, JVM_ACC_STATIC); |
1147 __ jcc(Assembler::zero, L); | |
1148 // get mirror | |
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1149 __ movptr(t, Address(method, Method::const_offset())); |
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1150 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1151 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1152 __ movptr(t, Address(t, mirror_offset)); |
0 | 1153 // copy mirror into activation frame |
304 | 1154 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
0 | 1155 t); |
1156 // pass handle to mirror | |
304 | 1157 __ lea(c_rarg1, |
1158 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
0 | 1159 __ bind(L); |
1160 } | |
1161 | |
1162 // get native function entry point | |
1163 { | |
1164 Label L; | |
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1165 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1166 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
1167 __ movptr(rscratch2, unsatisfied.addr()); | |
304 | 1168 __ cmpptr(rax, rscratch2); |
0 | 1169 __ jcc(Assembler::notEqual, L); |
1170 __ call_VM(noreg, | |
1171 CAST_FROM_FN_PTR(address, | |
1172 InterpreterRuntime::prepare_native_call), | |
1173 method); | |
1174 __ get_method(method); | |
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1175 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1176 __ bind(L); |
1177 } | |
1178 | |
1179 // pass JNIEnv | |
304 | 1180 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
0 | 1181 |
1182 // It is enough that the pc() points into the right code | |
1183 // segment. It does not have to be the correct return pc. | |
1184 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
1185 | |
1186 // change thread state | |
1187 #ifdef ASSERT | |
1188 { | |
1189 Label L; | |
1190 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
1191 __ cmpl(t, _thread_in_Java); | |
1192 __ jcc(Assembler::equal, L); | |
1193 __ stop("Wrong thread state in native stub"); | |
1194 __ bind(L); | |
1195 } | |
1196 #endif | |
1197 | |
1198 // Change state to native | |
1199 | |
1200 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1201 _thread_in_native); | |
1202 | |
1203 // Call the native method. | |
1204 __ call(rax); | |
1205 // result potentially in rax or xmm0 | |
1206 | |
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1207 // Verify or restore cpu control state after JNI call |
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1208 __ restore_cpu_control_state_after_jni(); |
0 | 1209 |
1210 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
1211 // in order to extract the result of a method call. If the order of these | |
1212 // pushes change or anything else is added to the stack then the code in | |
1213 // interpreter_frame_result must also change. | |
1214 | |
1215 __ push(dtos); | |
1216 __ push(ltos); | |
1217 | |
1218 // change thread state | |
1219 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1220 _thread_in_native_trans); | |
1221 | |
1222 if (os::is_MP()) { | |
1223 if (UseMembar) { | |
1224 // Force this write out before the read below | |
1225 __ membar(Assembler::Membar_mask_bits( | |
1226 Assembler::LoadLoad | Assembler::LoadStore | | |
1227 Assembler::StoreLoad | Assembler::StoreStore)); | |
1228 } else { | |
1229 // Write serialization page so VM thread can do a pseudo remote membar. | |
1230 // We use the current thread pointer to calculate a thread specific | |
1231 // offset to write to within the page. This minimizes bus traffic | |
1232 // due to cache line collision. | |
1233 __ serialize_memory(r15_thread, rscratch2); | |
1234 } | |
1235 } | |
1236 | |
1237 // check for safepoint operation in progress and/or pending suspend requests | |
1238 { | |
1239 Label Continue; | |
1240 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1241 SafepointSynchronize::_not_synchronized); | |
1242 | |
1243 Label L; | |
1244 __ jcc(Assembler::notEqual, L); | |
1245 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1246 __ jcc(Assembler::equal, Continue); | |
1247 __ bind(L); | |
1248 | |
1249 // Don't use call_VM as it will see a possible pending exception | |
1250 // and forward it and never return here preventing us from | |
1251 // clearing _last_native_pc down below. Also can't use | |
1252 // call_VM_leaf either as it will check to see if r13 & r14 are | |
1253 // preserved and correspond to the bcp/locals pointers. So we do a | |
1254 // runtime call by hand. | |
1255 // | |
304 | 1256 __ mov(c_rarg0, r15_thread); |
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1257 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1258 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1259 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1260 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
304 | 1261 __ mov(rsp, r12); // restore sp |
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1262 __ reinit_heapbase(); |
0 | 1263 __ bind(Continue); |
1264 } | |
1265 | |
1266 // change thread state | |
1267 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1268 | |
1269 // reset_last_Java_frame | |
1270 __ reset_last_Java_frame(true, true); | |
1271 | |
1272 // reset handle block | |
304 | 1273 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
1274 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
0 | 1275 |
1276 // If result is an oop unbox and store it in frame where gc will see it | |
1277 // and result handler will pick it up | |
1278 | |
1279 { | |
1280 Label no_oop, store_result; | |
1281 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
304 | 1282 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1283 __ jcc(Assembler::notEqual, no_oop); |
1284 // retrieve result | |
1285 __ pop(ltos); | |
304 | 1286 __ testptr(rax, rax); |
0 | 1287 __ jcc(Assembler::zero, store_result); |
304 | 1288 __ movptr(rax, Address(rax, 0)); |
0 | 1289 __ bind(store_result); |
304 | 1290 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
0 | 1291 // keep stack depth as expected by pushing oop which will eventually be discarde |
1292 __ push(ltos); | |
1293 __ bind(no_oop); | |
1294 } | |
1295 | |
1296 | |
1297 { | |
1298 Label no_reguard; | |
1299 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
1300 JavaThread::stack_guard_yellow_disabled); | |
1301 __ jcc(Assembler::notEqual, no_reguard); | |
1302 | |
304 | 1303 __ pusha(); // XXX only save smashed registers |
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1304 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1305 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1306 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1307 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1308 __ mov(rsp, r12); // restore sp |
1309 __ popa(); // XXX only restore smashed registers | |
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1310 __ reinit_heapbase(); |
0 | 1311 |
1312 __ bind(no_reguard); | |
1313 } | |
1314 | |
1315 | |
1316 // The method register is junk from after the thread_in_native transition | |
1317 // until here. Also can't call_VM until the bcp has been | |
1318 // restored. Need bcp for throwing exception below so get it now. | |
1319 __ get_method(method); | |
1320 | |
1321 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
1322 // r13 == code_base() | |
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1323 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1324 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
0 | 1325 // handle exceptions (exception handling will handle unlocking!) |
1326 { | |
1327 Label L; | |
304 | 1328 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 1329 __ jcc(Assembler::zero, L); |
1330 // Note: At some point we may want to unify this with the code | |
1331 // used in call_VM_base(); i.e., we should use the | |
1332 // StubRoutines::forward_exception code. For now this doesn't work | |
1333 // here because the rsp is not correctly set at this point. | |
1334 __ MacroAssembler::call_VM(noreg, | |
1335 CAST_FROM_FN_PTR(address, | |
1336 InterpreterRuntime::throw_pending_exception)); | |
1337 __ should_not_reach_here(); | |
1338 __ bind(L); | |
1339 } | |
1340 | |
1341 // do unlocking if necessary | |
1342 { | |
1343 Label L; | |
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1344 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1345 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1346 __ jcc(Assembler::zero, L); | |
1347 // the code below should be shared with interpreter macro | |
1348 // assembler implementation | |
1349 { | |
1350 Label unlock; | |
1351 // BasicObjectLock will be first in list, since this is a | |
1352 // synchronized method. However, need to check that the object | |
1353 // has not been unlocked by an explicit monitorexit bytecode. | |
1354 const Address monitor(rbp, | |
1355 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
1356 wordSize - sizeof(BasicObjectLock))); | |
1357 | |
1358 // monitor expect in c_rarg1 for slow unlock path | |
304 | 1359 __ lea(c_rarg1, monitor); // address of first monitor |
0 | 1360 |
304 | 1361 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
1362 __ testptr(t, t); | |
0 | 1363 __ jcc(Assembler::notZero, unlock); |
1364 | |
1365 // Entry already unlocked, need to throw exception | |
1366 __ MacroAssembler::call_VM(noreg, | |
1367 CAST_FROM_FN_PTR(address, | |
1368 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1369 __ should_not_reach_here(); | |
1370 | |
1371 __ bind(unlock); | |
1372 __ unlock_object(c_rarg1); | |
1373 } | |
1374 __ bind(L); | |
1375 } | |
1376 | |
1377 // jvmti support | |
1378 // Note: This must happen _after_ handling/throwing any exceptions since | |
1379 // the exception handler code notifies the runtime of method exits | |
1380 // too. If this happens before, method entry/exit notifications are | |
1381 // not properly paired (was bug - gri 11/22/99). | |
1382 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1383 | |
1384 // restore potential result in edx:eax, call result handler to | |
1385 // restore potential result in ST0 & handle result | |
1386 | |
1387 __ pop(ltos); | |
1388 __ pop(dtos); | |
1389 | |
304 | 1390 __ movptr(t, Address(rbp, |
1391 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
0 | 1392 __ call(t); |
1393 | |
1394 // remove activation | |
304 | 1395 __ movptr(t, Address(rbp, |
1396 frame::interpreter_frame_sender_sp_offset * | |
1397 wordSize)); // get sender sp | |
0 | 1398 __ leave(); // remove frame anchor |
304 | 1399 __ pop(rdi); // get return address |
1400 __ mov(rsp, t); // set sp to sender sp | |
0 | 1401 __ jmp(rdi); |
1402 | |
1403 if (inc_counter) { | |
1404 // Handle overflow of counter and compile method | |
1405 __ bind(invocation_counter_overflow); | |
1406 generate_counter_overflow(&continue_after_compile); | |
1407 } | |
1408 | |
1409 return entry_point; | |
1410 } | |
1411 | |
1412 // | |
1413 // Generic interpreted method entry to (asm) interpreter | |
1414 // | |
1415 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1416 // determine code generation flags | |
1417 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1418 | |
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1419 // ebx: Method* |
0 | 1420 // r13: sender sp |
1421 address entry_point = __ pc(); | |
1422 | |
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1423 const Address constMethod(rbx, Method::const_offset()); |
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1424 const Address access_flags(rbx, Method::access_flags_offset()); |
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1425 const Address size_of_parameters(rdx, |
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1426 ConstMethod::size_of_parameters_offset()); |
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1427 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1428 |
0 | 1429 |
1430 // get parameter size (always needed) | |
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1431 __ movptr(rdx, constMethod); |
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1432 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1433 |
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1434 // rbx: Method* |
0 | 1435 // rcx: size of parameters |
1436 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1437 | |
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1438 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1439 __ subl(rdx, rcx); // rdx = no. of additional locals |
1440 | |
1441 // YYY | |
1442 // __ incrementl(rdx); | |
1443 // __ andl(rdx, -2); | |
1444 | |
1445 // see if we've got enough room on the stack for locals plus overhead. | |
1446 generate_stack_overflow_check(); | |
1447 | |
1448 // get return address | |
304 | 1449 __ pop(rax); |
0 | 1450 |
1451 // compute beginning of parameters (r14) | |
304 | 1452 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1453 |
1454 // rdx - # of additional locals | |
1455 // allocate space for locals | |
1456 // explicitly initialize locals | |
1457 { | |
1458 Label exit, loop; | |
1459 __ testl(rdx, rdx); | |
1460 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1461 __ bind(loop); | |
304 | 1462 __ push((int) NULL_WORD); // initialize local variables |
0 | 1463 __ decrementl(rdx); // until everything initialized |
1464 __ jcc(Assembler::greater, loop); | |
1465 __ bind(exit); | |
1466 } | |
1467 | |
1468 // initialize fixed part of activation frame | |
1469 generate_fixed_frame(false); | |
1470 | |
1471 // make sure method is not native & not abstract | |
1472 #ifdef ASSERT | |
1473 __ movl(rax, access_flags); | |
1474 { | |
1475 Label L; | |
1476 __ testl(rax, JVM_ACC_NATIVE); | |
1477 __ jcc(Assembler::zero, L); | |
1478 __ stop("tried to execute native method as non-native"); | |
1479 __ bind(L); | |
1480 } | |
1481 { | |
1482 Label L; | |
1483 __ testl(rax, JVM_ACC_ABSTRACT); | |
1484 __ jcc(Assembler::zero, L); | |
1485 __ stop("tried to execute abstract method in interpreter"); | |
1486 __ bind(L); | |
1487 } | |
1488 #endif | |
1489 | |
1490 // Since at this point in the method invocation the exception | |
1491 // handler would try to exit the monitor of synchronized methods | |
1492 // which hasn't been entered yet, we set the thread local variable | |
1493 // _do_not_unlock_if_synchronized to true. The remove_activation | |
1494 // will check this flag. | |
1495 | |
1496 const Address do_not_unlock_if_synchronized(r15_thread, | |
1497 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1498 __ movbool(do_not_unlock_if_synchronized, true); | |
1499 | |
1500 // increment invocation count & check for overflow | |
1501 Label invocation_counter_overflow; | |
1502 Label profile_method; | |
1503 Label profile_method_continue; | |
1504 if (inc_counter) { | |
1505 generate_counter_incr(&invocation_counter_overflow, | |
1506 &profile_method, | |
1507 &profile_method_continue); | |
1508 if (ProfileInterpreter) { | |
1509 __ bind(profile_method_continue); | |
1510 } | |
1511 } | |
1512 | |
1513 Label continue_after_compile; | |
1514 __ bind(continue_after_compile); | |
1515 | |
1516 // check for synchronized interpreted methods | |
1517 bang_stack_shadow_pages(false); | |
1518 | |
1519 // reset the _do_not_unlock_if_synchronized flag | |
1520 __ movbool(do_not_unlock_if_synchronized, false); | |
1521 | |
1522 // check for synchronized methods | |
1523 // Must happen AFTER invocation_counter check and stack overflow check, | |
1524 // so method is not locked if overflows. | |
1525 if (synchronized) { | |
1526 // Allocate monitor and lock method | |
1527 lock_method(); | |
1528 } else { | |
1529 // no synchronization necessary | |
1530 #ifdef ASSERT | |
1531 { | |
1532 Label L; | |
1533 __ movl(rax, access_flags); | |
1534 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1535 __ jcc(Assembler::zero, L); | |
1536 __ stop("method needs synchronization"); | |
1537 __ bind(L); | |
1538 } | |
1539 #endif | |
1540 } | |
1541 | |
1542 // start execution | |
1543 #ifdef ASSERT | |
1544 { | |
1545 Label L; | |
1546 const Address monitor_block_top (rbp, | |
1547 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1548 __ movptr(rax, monitor_block_top); |
1549 __ cmpptr(rax, rsp); | |
0 | 1550 __ jcc(Assembler::equal, L); |
1551 __ stop("broken stack frame setup in interpreter"); | |
1552 __ bind(L); | |
1553 } | |
1554 #endif | |
1555 | |
1556 // jvmti support | |
1557 __ notify_method_entry(); | |
1558 | |
1559 __ dispatch_next(vtos); | |
1560 | |
1561 // invocation counter overflow | |
1562 if (inc_counter) { | |
1563 if (ProfileInterpreter) { | |
1564 // We have decided to profile this method in the interpreter | |
1565 __ bind(profile_method); | |
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1566 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1567 __ set_method_data_pointer_for_bcp(); |
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1568 __ get_method(rbx); |
0 | 1569 __ jmp(profile_method_continue); |
1570 } | |
1571 // Handle overflow of counter and compile method | |
1572 __ bind(invocation_counter_overflow); | |
1573 generate_counter_overflow(&continue_after_compile); | |
1574 } | |
1575 | |
1576 return entry_point; | |
1577 } | |
1578 | |
1579 // Entry points | |
1580 // | |
1581 // Here we generate the various kind of entries into the interpreter. | |
1582 // The two main entry type are generic bytecode methods and native | |
1583 // call method. These both come in synchronized and non-synchronized | |
1584 // versions but the frame layout they create is very similar. The | |
1585 // other method entry types are really just special purpose entries | |
1586 // that are really entry and interpretation all in one. These are for | |
1587 // trivial methods like accessor, empty, or special math methods. | |
1588 // | |
1589 // When control flow reaches any of the entry types for the interpreter | |
1590 // the following holds -> | |
1591 // | |
1592 // Arguments: | |
1593 // | |
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1594 // rbx: Method* |
0 | 1595 // |
1596 // Stack layout immediately at entry | |
1597 // | |
1598 // [ return address ] <--- rsp | |
1599 // [ parameter n ] | |
1600 // ... | |
1601 // [ parameter 1 ] | |
1602 // [ expression stack ] (caller's java expression stack) | |
1603 | |
1604 // Assuming that we don't go to one of the trivial specialized entries | |
1605 // the stack will look like below when we are ready to execute the | |
1606 // first bytecode (or call the native routine). The register usage | |
1607 // will be as the template based interpreter expects (see | |
1608 // interpreter_amd64.hpp). | |
1609 // | |
1610 // local variables follow incoming parameters immediately; i.e. | |
1611 // the return address is moved to the end of the locals). | |
1612 // | |
1613 // [ monitor entry ] <--- rsp | |
1614 // ... | |
1615 // [ monitor entry ] | |
1616 // [ expr. stack bottom ] | |
1617 // [ saved r13 ] | |
1618 // [ current r14 ] | |
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1619 // [ Method* ] |
0 | 1620 // [ saved ebp ] <--- rbp |
1621 // [ return address ] | |
1622 // [ local variable m ] | |
1623 // ... | |
1624 // [ local variable 1 ] | |
1625 // [ parameter n ] | |
1626 // ... | |
1627 // [ parameter 1 ] <--- r14 | |
1628 | |
1629 address AbstractInterpreterGenerator::generate_method_entry( | |
1630 AbstractInterpreter::MethodKind kind) { | |
1631 // determine code generation flags | |
1632 bool synchronized = false; | |
1633 address entry_point = NULL; | |
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1634 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
0 | 1635 |
1636 switch (kind) { | |
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1637 case Interpreter::zerolocals : break; |
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1638 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
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1639 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
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1640 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
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1641 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
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1642 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
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1643 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
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1644 |
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1645 case Interpreter::java_lang_math_sin : // fall thru |
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1646 case Interpreter::java_lang_math_cos : // fall thru |
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1647 case Interpreter::java_lang_math_tan : // fall thru |
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1648 case Interpreter::java_lang_math_abs : // fall thru |
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1649 case Interpreter::java_lang_math_log : // fall thru |
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1650 case Interpreter::java_lang_math_log10 : // fall thru |
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1651 case Interpreter::java_lang_math_sqrt : // fall thru |
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1652 case Interpreter::java_lang_math_pow : // fall thru |
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1653 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
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1654 case Interpreter::java_lang_ref_reference_get |
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1655 : entry_point = ig_this->generate_Reference_get_entry(); break; |
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1656 case Interpreter::java_util_zip_CRC32_update |
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1657 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
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1658 case Interpreter::java_util_zip_CRC32_updateBytes |
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1659 : // fall thru |
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1660 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
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1661 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
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1662 default: |
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1663 fatal(err_msg("unexpected method kind: %d", kind)); |
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1664 break; |
0 | 1665 } |
1666 | |
1667 if (entry_point) { | |
1668 return entry_point; | |
1669 } | |
1670 | |
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1671 return ig_this->generate_normal_entry(synchronized); |
0 | 1672 } |
1673 | |
1174
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1674 // These should never be compiled since the interpreter will prefer |
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1675 // the compiled version to the intrinsic version. |
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1676 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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1677 switch (method_kind(m)) { |
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1678 case Interpreter::java_lang_math_sin : // fall thru |
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1679 case Interpreter::java_lang_math_cos : // fall thru |
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1680 case Interpreter::java_lang_math_tan : // fall thru |
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1681 case Interpreter::java_lang_math_abs : // fall thru |
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1682 case Interpreter::java_lang_math_log : // fall thru |
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1683 case Interpreter::java_lang_math_log10 : // fall thru |
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1684 case Interpreter::java_lang_math_sqrt : // fall thru |
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1685 case Interpreter::java_lang_math_pow : // fall thru |
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1686 case Interpreter::java_lang_math_exp : |
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1687 return false; |
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|
1688 default: |
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1689 return true; |
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|
1690 } |
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|
1691 } |
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1692 |
0 | 1693 // How much stack a method activation needs in words. |
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1694 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1695 const int entry_size = frame::interpreter_frame_monitor_size(); |
1696 | |
1697 // total overhead size: entry_size + (saved rbp thru expr stack | |
1698 // bottom). be sure to change this if you add/subtract anything | |
1699 // to/from the overhead area | |
1700 const int overhead_size = | |
1701 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
1702 | |
1703 const int stub_code = frame::entry_frame_after_call_words; | |
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1704 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1705 Interpreter::stackElementWords; |
0 | 1706 return (overhead_size + method_stack + stub_code); |
1707 } | |
1708 | |
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1709 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1710 int tempcount, |
1711 int popframe_extra_args, | |
1712 int moncount, | |
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1713 int caller_actual_parameters, |
0 | 1714 int callee_param_count, |
1715 int callee_locals, | |
1716 frame* caller, | |
1717 frame* interpreter_frame, | |
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1718 bool is_top_frame, |
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|
1719 bool is_bottom_frame) { |
0 | 1720 // Note: This calculation must exactly parallel the frame setup |
1721 // in AbstractInterpreterGenerator::generate_method_entry. | |
1722 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1723 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
1724 // right size, as determined by a previous call to this method. | |
1725 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1726 | |
1727 // fixed size of an interpreter frame: | |
1506 | 1728 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1729 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1730 Interpreter::stackElementWords; |
0 | 1731 |
1732 int overhead = frame::sender_sp_offset - | |
1733 frame::interpreter_frame_initial_sp_offset; | |
1734 // Our locals were accounted for by the caller (or last_frame_adjust | |
1735 // on the transistion) Since the callee parameters already account | |
1736 // for the callee's params we only need to account for the extra | |
1737 // locals. | |
1738 int size = overhead + | |
1506 | 1739 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
0 | 1740 moncount * frame::interpreter_frame_monitor_size() + |
1506 | 1741 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
0 | 1742 if (interpreter_frame != NULL) { |
1743 #ifdef ASSERT | |
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|
1744 if (!EnableInvokeDynamic) |
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|
1745 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
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|
1746 // Probably, since deoptimization doesn't work yet. |
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|
1747 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1748 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1749 #endif | |
1750 | |
1751 interpreter_frame->interpreter_frame_set_method(method); | |
1752 // NOTE the difference in using sender_sp and | |
1753 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
1754 // the original sp of the caller (the unextended_sp) and | |
1755 // sender_sp is fp+16 XXX | |
1756 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1757 | |
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|
1758 #ifdef ASSERT |
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|
1759 if (caller->is_interpreted_frame()) { |
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|
1760 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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|
1761 } |
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|
1762 #endif |
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1763 |
0 | 1764 interpreter_frame->interpreter_frame_set_locals(locals); |
1765 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1766 BasicObjectLock* monbot = montop - moncount; | |
1767 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1768 | |
1769 // Set last_sp | |
1770 intptr_t* esp = (intptr_t*) monbot - | |
1506 | 1771 tempcount*Interpreter::stackElementWords - |
0 | 1772 popframe_extra_args; |
1773 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
1774 | |
1775 // All frames but the initial (oldest) interpreter frame we fill in have | |
1776 // a value for sender_sp that allows walking the stack but isn't | |
1777 // truly correct. Correct the value here. | |
1778 if (extra_locals != 0 && | |
1779 interpreter_frame->sender_sp() == | |
1780 interpreter_frame->interpreter_frame_sender_sp()) { | |
1781 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
1782 extra_locals); | |
1783 } | |
1784 *interpreter_frame->interpreter_frame_cache_addr() = | |
1785 method->constants()->cache(); | |
1786 } | |
1787 return size; | |
1788 } | |
1789 | |
1790 //----------------------------------------------------------------------------- | |
1791 // Exceptions | |
1792 | |
1793 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1794 // Entry point in previous activation (i.e., if the caller was | |
1795 // interpreted) | |
1796 Interpreter::_rethrow_exception_entry = __ pc(); | |
1797 // Restore sp to interpreter_frame_last_sp even though we are going | |
1798 // to empty the expression stack for the exception processing. | |
304 | 1799 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 1800 // rax: exception |
1801 // rdx: return address/pc that threw exception | |
1802 __ restore_bcp(); // r13 points to call/send | |
1803 __ restore_locals(); | |
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1804 __ reinit_heapbase(); // restore r12 as heapbase. |
0 | 1805 // Entry point for exceptions thrown within interpreter code |
1806 Interpreter::_throw_exception_entry = __ pc(); | |
1807 // expression stack is undefined here | |
1808 // rax: exception | |
1809 // r13: exception bcp | |
1810 __ verify_oop(rax); | |
304 | 1811 __ mov(c_rarg1, rax); |
0 | 1812 |
1813 // expression stack must be empty before entering the VM in case of | |
1814 // an exception | |
1815 __ empty_expression_stack(); | |
1816 // find exception handler address and preserve exception oop | |
1817 __ call_VM(rdx, | |
1818 CAST_FROM_FN_PTR(address, | |
1819 InterpreterRuntime::exception_handler_for_exception), | |
1820 c_rarg1); | |
1821 // rax: exception handler entry point | |
1822 // rdx: preserved exception oop | |
1823 // r13: bcp for exception handler | |
1824 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1825 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1826 | |
1827 // If the exception is not handled in the current frame the frame is | |
1828 // removed and the exception is rethrown (i.e. exception | |
1829 // continuation is _rethrow_exception). | |
1830 // | |
1831 // Note: At this point the bci is still the bxi for the instruction | |
1832 // which caused the exception and the expression stack is | |
1833 // empty. Thus, for any VM calls at this point, GC will find a legal | |
1834 // oop map (with empty expression stack). | |
1835 | |
1836 // In current activation | |
1837 // tos: exception | |
1838 // esi: exception bcp | |
1839 | |
1840 // | |
1841 // JVMTI PopFrame support | |
1842 // | |
1843 | |
1844 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1845 __ empty_expression_stack(); | |
1846 // Set the popframe_processing bit in pending_popframe_condition | |
1847 // indicating that we are currently handling popframe, so that | |
1848 // call_VMs that may happen later do not trigger new popframe | |
1849 // handling cycles. | |
1850 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
1851 __ orl(rdx, JavaThread::popframe_processing_bit); | |
1852 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
1853 | |
1854 { | |
1855 // Check to see whether we are returning to a deoptimized frame. | |
1856 // (The PopFrame call ensures that the caller of the popped frame is | |
1857 // either interpreted or compiled and deoptimizes it if compiled.) | |
1858 // In this case, we can't call dispatch_next() after the frame is | |
1859 // popped, but instead must save the incoming arguments and restore | |
1860 // them after deoptimization has occurred. | |
1861 // | |
1862 // Note that we don't compare the return PC against the | |
1863 // deoptimization blob's unpack entry because of the presence of | |
1864 // adapter frames in C2. | |
1865 Label caller_not_deoptimized; | |
304 | 1866 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1867 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1868 InterpreterRuntime::interpreter_contains), c_rarg1); | |
1869 __ testl(rax, rax); | |
1870 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1871 | |
1872 // Compute size of arguments for saving when returning to | |
1873 // deoptimized caller | |
1874 __ get_method(rax); | |
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1875 __ movptr(rax, Address(rax, Method::const_offset())); |
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1876 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
0 | 1877 size_of_parameters_offset()))); |
1506 | 1878 __ shll(rax, Interpreter::logStackElementSize); |
0 | 1879 __ restore_locals(); // XXX do we need this? |
304 | 1880 __ subptr(r14, rax); |
1881 __ addptr(r14, wordSize); | |
0 | 1882 // Save these arguments |
1883 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
1884 Deoptimization:: | |
1885 popframe_preserve_args), | |
1886 r15_thread, rax, r14); | |
1887 | |
1888 __ remove_activation(vtos, rdx, | |
1889 /* throw_monitor_exception */ false, | |
1890 /* install_monitor_exception */ false, | |
1891 /* notify_jvmdi */ false); | |
1892 | |
1893 // Inform deoptimization that it is responsible for restoring | |
1894 // these arguments | |
1895 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1896 JavaThread::popframe_force_deopt_reexecution_bit); | |
1897 | |
1898 // Continue in deoptimization handler | |
1899 __ jmp(rdx); | |
1900 | |
1901 __ bind(caller_not_deoptimized); | |
1902 } | |
1903 | |
1904 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
1905 /* throw_monitor_exception */ false, | |
1906 /* install_monitor_exception */ false, | |
1907 /* notify_jvmdi */ false); | |
1908 | |
1909 // Finish with popframe handling | |
1910 // A previous I2C followed by a deoptimization might have moved the | |
1911 // outgoing arguments further up the stack. PopFrame expects the | |
1912 // mutations to those outgoing arguments to be preserved and other | |
1913 // constraints basically require this frame to look exactly as | |
1914 // though it had previously invoked an interpreted activation with | |
1915 // no space between the top of the expression stack (current | |
1916 // last_sp) and the top of stack. Rather than force deopt to | |
1917 // maintain this kind of invariant all the time we call a small | |
1918 // fixup routine to move the mutated arguments onto the top of our | |
1919 // expression stack if necessary. | |
304 | 1920 __ mov(c_rarg1, rsp); |
1921 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
0 | 1922 // PC must point into interpreter here |
1923 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
1924 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
1925 __ reset_last_Java_frame(true, true); | |
1926 // Restore the last_sp and null it out | |
304 | 1927 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
1928 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
0 | 1929 |
1930 __ restore_bcp(); // XXX do we need this? | |
1931 __ restore_locals(); // XXX do we need this? | |
1932 // The method data pointer was incremented already during | |
1933 // call profiling. We have to restore the mdp for the current bcp. | |
1934 if (ProfileInterpreter) { | |
1935 __ set_method_data_pointer_for_bcp(); | |
1936 } | |
1937 | |
1938 // Clear the popframe condition flag | |
1939 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1940 JavaThread::popframe_inactive); | |
1941 | |
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1942 #if INCLUDE_JVMTI |
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1943 if (EnableInvokeDynamic) { |
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1944 Label L_done; |
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1945 const Register local0 = r14; |
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1946 |
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1947 __ cmpb(Address(r13, 0), Bytecodes::_invokestatic); |
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1948 __ jcc(Assembler::notEqual, L_done); |
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1949 |
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1950 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1951 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1952 |
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1953 __ get_method(rdx); |
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1954 __ movptr(rax, Address(local0, 0)); |
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1955 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, r13); |
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1956 |
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1957 __ testptr(rax, rax); |
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1958 __ jcc(Assembler::zero, L_done); |
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1959 |
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1960 __ movptr(Address(rbx, 0), rax); |
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1961 __ bind(L_done); |
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1962 } |
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1963 #endif // INCLUDE_JVMTI |
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1964 |
0 | 1965 __ dispatch_next(vtos); |
1966 // end of PopFrame support | |
1967 | |
1968 Interpreter::_remove_activation_entry = __ pc(); | |
1969 | |
1970 // preserve exception over this code sequence | |
1971 __ pop_ptr(rax); | |
304 | 1972 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
0 | 1973 // remove the activation (without doing throws on illegalMonitorExceptions) |
1974 __ remove_activation(vtos, rdx, false, true, false); | |
1975 // restore exception | |
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1976 __ get_vm_result(rax, r15_thread); |
0 | 1977 |
1978 // In between activations - previous activation type unknown yet | |
1979 // compute continuation point - the continuation point expects the | |
1980 // following registers set up: | |
1981 // | |
1982 // rax: exception | |
1983 // rdx: return address/pc that threw exception | |
1984 // rsp: expression stack of caller | |
1985 // rbp: ebp of caller | |
304 | 1986 __ push(rax); // save exception |
1987 __ push(rdx); // save return address | |
0 | 1988 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1989 SharedRuntime::exception_handler_for_return_address), | |
1295 | 1990 r15_thread, rdx); |
304 | 1991 __ mov(rbx, rax); // save exception handler |
1992 __ pop(rdx); // restore return address | |
1993 __ pop(rax); // restore exception | |
0 | 1994 // Note that an "issuing PC" is actually the next PC after the call |
1995 __ jmp(rbx); // jump to exception | |
1996 // handler of caller | |
1997 } | |
1998 | |
1999 | |
2000 // | |
2001 // JVMTI ForceEarlyReturn support | |
2002 // | |
2003 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
2004 address entry = __ pc(); | |
2005 | |
2006 __ restore_bcp(); | |
2007 __ restore_locals(); | |
2008 __ empty_expression_stack(); | |
2009 __ load_earlyret_value(state); | |
2010 | |
304 | 2011 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 2012 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
2013 | |
2014 // Clear the earlyret state | |
2015 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
2016 | |
2017 __ remove_activation(state, rsi, | |
2018 false, /* throw_monitor_exception */ | |
2019 false, /* install_monitor_exception */ | |
2020 true); /* notify_jvmdi */ | |
2021 __ jmp(rsi); | |
2022 | |
2023 return entry; | |
2024 } // end of ForceEarlyReturn support | |
2025 | |
2026 | |
2027 //----------------------------------------------------------------------------- | |
2028 // Helper for vtos entry point generation | |
2029 | |
2030 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
2031 address& bep, | |
2032 address& cep, | |
2033 address& sep, | |
2034 address& aep, | |
2035 address& iep, | |
2036 address& lep, | |
2037 address& fep, | |
2038 address& dep, | |
2039 address& vep) { | |
2040 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
2041 Label L; | |
2042 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
2043 fep = __ pc(); __ push_f(); __ jmp(L); | |
2044 dep = __ pc(); __ push_d(); __ jmp(L); | |
2045 lep = __ pc(); __ push_l(); __ jmp(L); | |
2046 bep = cep = sep = | |
2047 iep = __ pc(); __ push_i(); | |
2048 vep = __ pc(); | |
2049 __ bind(L); | |
2050 generate_and_dispatch(t); | |
2051 } | |
2052 | |
2053 | |
2054 //----------------------------------------------------------------------------- | |
2055 // Generation of individual instructions | |
2056 | |
2057 // helpers for generate_and_dispatch | |
2058 | |
2059 | |
2060 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
2061 : TemplateInterpreterGenerator(code) { | |
2062 generate_all(); // down here so it can be "virtual" | |
2063 } | |
2064 | |
2065 //----------------------------------------------------------------------------- | |
2066 | |
2067 // Non-product code | |
2068 #ifndef PRODUCT | |
2069 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
2070 address entry = __ pc(); | |
2071 | |
2072 __ push(state); | |
304 | 2073 __ push(c_rarg0); |
2074 __ push(c_rarg1); | |
2075 __ push(c_rarg2); | |
2076 __ push(c_rarg3); | |
2077 __ mov(c_rarg2, rax); // Pass itos | |
0 | 2078 #ifdef _WIN64 |
2079 __ movflt(xmm3, xmm0); // Pass ftos | |
2080 #endif | |
2081 __ call_VM(noreg, | |
2082 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
2083 c_rarg1, c_rarg2, c_rarg3); | |
304 | 2084 __ pop(c_rarg3); |
2085 __ pop(c_rarg2); | |
2086 __ pop(c_rarg1); | |
2087 __ pop(c_rarg0); | |
0 | 2088 __ pop(state); |
2089 __ ret(0); // return from result handler | |
2090 | |
2091 return entry; | |
2092 } | |
2093 | |
2094 void TemplateInterpreterGenerator::count_bytecode() { | |
2095 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
2096 } | |
2097 | |
2098 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
2099 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
2100 } | |
2101 | |
2102 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2103 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
2104 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2105 __ orl(rbx, | |
2106 ((int) t->bytecode()) << | |
2107 BytecodePairHistogram::log2_number_of_codes); | |
2108 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2109 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
2110 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
2111 } | |
2112 | |
2113 | |
2114 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2115 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2116 // The run-time runtime saves the right registers, depending on | |
2117 // the tosca in-state for the given template. | |
2118 | |
2119 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2120 "entry must have been generated"); | |
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2121 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 2122 __ andptr(rsp, -16); // align stack as required by ABI |
0 | 2123 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
304 | 2124 __ mov(rsp, r12); // restore sp |
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2125 __ reinit_heapbase(); |
0 | 2126 } |
2127 | |
2128 | |
2129 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2130 Label L; | |
2131 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2132 StopInterpreterAt); | |
2133 __ jcc(Assembler::notEqual, L); | |
2134 __ int3(); | |
2135 __ bind(L); | |
2136 } | |
2137 #endif // !PRODUCT | |
304 | 2138 #endif // ! CC_INTERP |