Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 15107:1bf700e19e84
Make Loop generic.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Wed, 09 Apr 2014 17:11:48 +0200 |
parents | 4062efea018b |
children | 52b4284cb496 |
rev | line source |
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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, size_t index_size) { |
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 |
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186 const Register cache = rbx; |
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187 const Register index = rcx; |
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188 __ get_cache_and_index_at_bcp(cache, index, 1, index_size); |
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189 |
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190 const Register flags = cache; |
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191 __ movl(flags, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
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192 __ andl(flags, ConstantPoolCacheEntry::parameter_size_mask); |
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193 __ lea(rsp, Address(rsp, flags, Interpreter::stackElementScale())); |
0 | 194 __ dispatch_next(state, step); |
1108 | 195 |
0 | 196 return entry; |
197 } | |
198 | |
199 | |
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200 address InterpreterGenerator::generate_deopt_entry_for(TosState state, |
0 | 201 int step) { |
202 address entry = __ pc(); | |
203 // NULL last_sp until next java call | |
304 | 204 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 205 __ restore_bcp(); |
206 __ restore_locals(); | |
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207 #ifdef GRAAL |
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208 // Check if we need to take lock at entry of synchronized method. |
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209 { |
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210 Label L; |
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211 __ cmpb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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212 __ jcc(Assembler::zero, L); |
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213 // Clear flag. |
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214 __ movb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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215 // Satisfy calling convention for lock_method(). |
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216 __ get_method(rbx); |
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217 // Take lock. |
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218 lock_method(); |
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219 __ bind(L); |
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220 } |
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221 #endif |
0 | 222 // handle exceptions |
223 { | |
224 Label L; | |
304 | 225 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 226 __ jcc(Assembler::zero, L); |
227 __ call_VM(noreg, | |
228 CAST_FROM_FN_PTR(address, | |
229 InterpreterRuntime::throw_pending_exception)); | |
230 __ should_not_reach_here(); | |
231 __ bind(L); | |
232 } | |
233 __ dispatch_next(state, step); | |
234 return entry; | |
235 } | |
236 | |
237 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
238 int i = 0; | |
239 switch (type) { | |
240 case T_BOOLEAN: i = 0; break; | |
241 case T_CHAR : i = 1; break; | |
242 case T_BYTE : i = 2; break; | |
243 case T_SHORT : i = 3; break; | |
244 case T_INT : i = 4; break; | |
245 case T_LONG : i = 5; break; | |
246 case T_VOID : i = 6; break; | |
247 case T_FLOAT : i = 7; break; | |
248 case T_DOUBLE : i = 8; break; | |
249 case T_OBJECT : i = 9; break; | |
250 case T_ARRAY : i = 9; break; | |
251 default : ShouldNotReachHere(); | |
252 } | |
253 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
254 "index out of bounds"); | |
255 return i; | |
256 } | |
257 | |
258 | |
259 address TemplateInterpreterGenerator::generate_result_handler_for( | |
260 BasicType type) { | |
261 address entry = __ pc(); | |
262 switch (type) { | |
263 case T_BOOLEAN: __ c2bool(rax); break; | |
264 case T_CHAR : __ movzwl(rax, rax); break; | |
265 case T_BYTE : __ sign_extend_byte(rax); break; | |
266 case T_SHORT : __ sign_extend_short(rax); break; | |
267 case T_INT : /* nothing to do */ break; | |
268 case T_LONG : /* nothing to do */ break; | |
269 case T_VOID : /* nothing to do */ break; | |
270 case T_FLOAT : /* nothing to do */ break; | |
271 case T_DOUBLE : /* nothing to do */ break; | |
272 case T_OBJECT : | |
273 // retrieve result from frame | |
304 | 274 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
0 | 275 // and verify it |
276 __ verify_oop(rax); | |
277 break; | |
278 default : ShouldNotReachHere(); | |
279 } | |
280 __ ret(0); // return from result handler | |
281 return entry; | |
282 } | |
283 | |
284 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
285 TosState state, | |
286 address runtime_entry) { | |
287 address entry = __ pc(); | |
288 __ push(state); | |
289 __ call_VM(noreg, runtime_entry); | |
290 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
291 return entry; | |
292 } | |
293 | |
294 | |
295 | |
296 // Helpers for commoning out cases in the various type of method entries. | |
297 // | |
298 | |
299 | |
300 // increment invocation count & check for overflow | |
301 // | |
302 // Note: checking for negative value instead of overflow | |
303 // so we have a 'sticky' overflow test | |
304 // | |
305 // rbx: method | |
306 // ecx: invocation counter | |
307 // | |
308 void InterpreterGenerator::generate_counter_incr( | |
309 Label* overflow, | |
310 Label* profile_method, | |
311 Label* profile_method_continue) { | |
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312 Label done; |
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313 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
1783 | 314 if (TieredCompilation) { |
315 int increment = InvocationCounter::count_increment; | |
316 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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317 Label no_mdo; |
1783 | 318 if (ProfileInterpreter) { |
319 // Are we profiling? | |
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320 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
1783 | 321 __ testptr(rax, rax); |
322 __ jccb(Assembler::zero, no_mdo); | |
323 // Increment counter in the MDO | |
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324 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
1783 | 325 in_bytes(InvocationCounter::counter_offset())); |
326 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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327 __ jmp(done); |
1783 | 328 } |
329 __ bind(no_mdo); | |
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330 // Increment counter in MethodCounters |
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331 const Address invocation_counter(rax, |
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332 MethodCounters::invocation_counter_offset() + |
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333 InvocationCounter::counter_offset()); |
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334 __ get_method_counters(rbx, rax, done); |
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335 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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336 false, Assembler::zero, overflow); |
1783 | 337 __ bind(done); |
338 } else { | |
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339 const Address backedge_counter(rax, |
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340 MethodCounters::backedge_counter_offset() + |
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341 InvocationCounter::counter_offset()); |
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342 const Address invocation_counter(rax, |
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343 MethodCounters::invocation_counter_offset() + |
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344 InvocationCounter::counter_offset()); |
0 | 345 |
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346 __ get_method_counters(rbx, rax, done); |
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347 |
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348 if (ProfileInterpreter) { |
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349 __ incrementl(Address(rax, |
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350 MethodCounters::interpreter_invocation_counter_offset())); |
1783 | 351 } |
352 // Update standard invocation counters | |
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353 __ movl(rcx, invocation_counter); |
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354 __ incrementl(rcx, InvocationCounter::count_increment); |
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355 __ movl(invocation_counter, rcx); // save invocation count |
0 | 356 |
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357 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 358 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
0 | 359 |
1783 | 360 __ addl(rcx, rax); // add both counters |
0 | 361 |
1783 | 362 // profile_method is non-null only for interpreted method so |
363 // profile_method != NULL == !native_call | |
364 | |
365 if (ProfileInterpreter && profile_method != NULL) { | |
366 // Test to see if we should create a method data oop | |
367 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
368 __ jcc(Assembler::less, *profile_method_continue); | |
0 | 369 |
1783 | 370 // if no method data exists, go to profile_method |
371 __ test_method_data_pointer(rax, *profile_method); | |
372 } | |
373 | |
374 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
375 __ jcc(Assembler::aboveEqual, *overflow); | |
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376 __ bind(done); |
0 | 377 } |
378 } | |
379 | |
380 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
381 | |
382 // Asm interpreter on entry | |
383 // r14 - locals | |
384 // r13 - bcp | |
385 // rbx - method | |
386 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
387 // rbp - interpreter frame | |
388 | |
389 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
390 // Everything as it was on entry | |
391 // rdx is not restored. Doesn't appear to really be set. | |
392 | |
393 // InterpreterRuntime::frequency_counter_overflow takes two | |
394 // arguments, the first (thread) is passed by call_VM, the second | |
395 // indicates if the counter overflow occurs at a backwards branch | |
396 // (NULL bcp). We pass zero for it. The call returns the address | |
397 // of the verified entry point for the method or NULL if the | |
398 // compilation did not complete (either went background or bailed | |
399 // out). | |
400 __ movl(c_rarg1, 0); | |
401 __ call_VM(noreg, | |
402 CAST_FROM_FN_PTR(address, | |
403 InterpreterRuntime::frequency_counter_overflow), | |
404 c_rarg1); | |
405 | |
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406 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 407 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
408 // and jump to the interpreted entry. | |
409 __ jmp(*do_continue, relocInfo::none); | |
410 } | |
411 | |
412 // See if we've got enough room on the stack for locals plus overhead. | |
413 // The expression stack grows down incrementally, so the normal guard | |
414 // page mechanism will work for that. | |
415 // | |
416 // NOTE: Since the additional locals are also always pushed (wasn't | |
417 // obvious in generate_method_entry) so the guard should work for them | |
418 // too. | |
419 // | |
420 // Args: | |
421 // rdx: number of additional locals this frame needs (what we must check) | |
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422 // rbx: Method* |
0 | 423 // |
424 // Kills: | |
425 // rax | |
426 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
427 | |
428 // monitor entry size: see picture of stack set | |
429 // (generate_method_entry) and frame_amd64.hpp | |
430 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
431 | |
432 // total overhead size: entry_size + (saved rbp through expr stack | |
433 // bottom). be sure to change this if you add/subtract anything | |
434 // to/from the overhead area | |
435 const int overhead_size = | |
436 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
437 | |
438 const int page_size = os::vm_page_size(); | |
439 | |
440 Label after_frame_check; | |
441 | |
442 // see if the frame is greater than one page in size. If so, | |
443 // then we need to verify there is enough stack space remaining | |
444 // for the additional locals. | |
1506 | 445 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
0 | 446 __ jcc(Assembler::belowEqual, after_frame_check); |
447 | |
448 // compute rsp as if this were going to be the last frame on | |
449 // the stack before the red zone | |
450 | |
451 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
452 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
453 | |
454 // locals + overhead, in bytes | |
304 | 455 __ mov(rax, rdx); |
1506 | 456 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
304 | 457 __ addptr(rax, overhead_size); |
0 | 458 |
459 #ifdef ASSERT | |
460 Label stack_base_okay, stack_size_okay; | |
461 // verify that thread stack base is non-zero | |
304 | 462 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 463 __ jcc(Assembler::notEqual, stack_base_okay); |
464 __ stop("stack base is zero"); | |
465 __ bind(stack_base_okay); | |
466 // verify that thread stack size is non-zero | |
304 | 467 __ cmpptr(stack_size, 0); |
0 | 468 __ jcc(Assembler::notEqual, stack_size_okay); |
469 __ stop("stack size is zero"); | |
470 __ bind(stack_size_okay); | |
471 #endif | |
472 | |
473 // Add stack base to locals and subtract stack size | |
304 | 474 __ addptr(rax, stack_base); |
475 __ subptr(rax, stack_size); | |
0 | 476 |
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477 // Use the maximum number of pages we might bang. |
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478 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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479 (StackRedPages+StackYellowPages); |
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480 |
0 | 481 // add in the red and yellow zone sizes |
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482 __ addptr(rax, max_pages * page_size); |
0 | 483 |
484 // check against the current stack bottom | |
304 | 485 __ cmpptr(rsp, rax); |
0 | 486 __ jcc(Assembler::above, after_frame_check); |
487 | |
4743 | 488 // Restore sender's sp as SP. This is necessary if the sender's |
489 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
490 // and safer anyway in case of JSR292 adaptations. | |
491 | |
492 __ pop(rax); // return address must be moved if SP is changed | |
493 __ mov(rsp, r13); | |
494 __ push(rax); | |
495 | |
496 // Note: the restored frame is not necessarily interpreted. | |
497 // Use the shared runtime version of the StackOverflowError. | |
498 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
499 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 500 |
501 // all done with frame size check | |
502 __ bind(after_frame_check); | |
503 } | |
504 | |
505 // Allocate monitor and lock method (asm interpreter) | |
506 // | |
507 // Args: | |
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508 // rbx: Method* |
0 | 509 // r14: locals |
510 // | |
511 // Kills: | |
512 // rax | |
513 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
514 // rscratch1, rscratch2 (scratch regs) | |
515 void InterpreterGenerator::lock_method(void) { | |
516 // synchronize method | |
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517 const Address access_flags(rbx, Method::access_flags_offset()); |
0 | 518 const Address monitor_block_top( |
519 rbp, | |
520 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
521 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
522 | |
523 #ifdef ASSERT | |
524 { | |
525 Label L; | |
526 __ movl(rax, access_flags); | |
527 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
528 __ jcc(Assembler::notZero, L); | |
529 __ stop("method doesn't need synchronization"); | |
530 __ bind(L); | |
531 } | |
532 #endif // ASSERT | |
533 | |
534 // get synchronization object | |
535 { | |
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536 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 537 Label done; |
538 __ movl(rax, access_flags); | |
539 __ testl(rax, JVM_ACC_STATIC); | |
540 // get receiver (assume this is frequent case) | |
304 | 541 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
0 | 542 __ jcc(Assembler::zero, done); |
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543 __ movptr(rax, Address(rbx, Method::const_offset())); |
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544 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
304 | 545 __ movptr(rax, Address(rax, |
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546 ConstantPool::pool_holder_offset_in_bytes())); |
304 | 547 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 548 |
549 #ifdef ASSERT | |
550 { | |
551 Label L; | |
304 | 552 __ testptr(rax, rax); |
0 | 553 __ jcc(Assembler::notZero, L); |
554 __ stop("synchronization object is NULL"); | |
555 __ bind(L); | |
556 } | |
557 #endif // ASSERT | |
558 | |
559 __ bind(done); | |
560 } | |
561 | |
562 // add space for monitor & lock | |
304 | 563 __ subptr(rsp, entry_size); // add space for a monitor entry |
564 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
0 | 565 // store object |
304 | 566 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
567 __ movptr(c_rarg1, rsp); // object address | |
0 | 568 __ lock_object(c_rarg1); |
569 } | |
570 | |
571 // Generate a fixed interpreter frame. This is identical setup for | |
572 // interpreted methods and for native methods hence the shared code. | |
573 // | |
574 // Args: | |
575 // rax: return address | |
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576 // rbx: Method* |
0 | 577 // r14: pointer to locals |
578 // r13: sender sp | |
579 // rdx: cp cache | |
580 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
581 // initialize fixed part of activation frame | |
304 | 582 __ push(rax); // save return address |
0 | 583 __ enter(); // save old & set new rbp |
304 | 584 __ push(r13); // set sender sp |
585 __ push((int)NULL_WORD); // leave last_sp as null | |
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586 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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587 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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588 __ push(rbx); // save Method* |
0 | 589 if (ProfileInterpreter) { |
590 Label method_data_continue; | |
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591 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 592 __ testptr(rdx, rdx); |
0 | 593 __ jcc(Assembler::zero, method_data_continue); |
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594 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 595 __ bind(method_data_continue); |
304 | 596 __ push(rdx); // set the mdp (method data pointer) |
0 | 597 } else { |
304 | 598 __ push(0); |
0 | 599 } |
600 | |
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601 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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602 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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603 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 604 __ push(rdx); // set constant pool cache |
605 __ push(r14); // set locals pointer | |
0 | 606 if (native_call) { |
304 | 607 __ push(0); // no bcp |
0 | 608 } else { |
304 | 609 __ push(r13); // set bcp |
0 | 610 } |
304 | 611 __ push(0); // reserve word for pointer to expression stack bottom |
612 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 613 } |
614 | |
615 // End of helpers | |
616 | |
304 | 617 // Various method entries |
618 //------------------------------------------------------------------------------------------------------------------------ | |
619 // | |
620 // | |
621 | |
622 // Call an accessor method (assuming it is resolved, otherwise drop | |
623 // into vanilla (slow path) entry | |
624 address InterpreterGenerator::generate_accessor_entry(void) { | |
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625 // rbx: Method* |
304 | 626 |
627 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
628 | |
629 address entry_point = __ pc(); | |
630 Label xreturn_path; | |
631 | |
632 // do fastpath for resolved accessor methods | |
633 if (UseFastAccessorMethods) { | |
634 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
635 // thereof; parameter size = 1 | |
636 // Note: We can only use this code if the getfield has been resolved | |
637 // and if we don't have a null-pointer exception => check for | |
638 // these conditions first and use slow path if necessary. | |
639 Label slow_path; | |
640 // If we need a safepoint check, generate full interpreter entry. | |
641 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
642 SafepointSynchronize::_not_synchronized); | |
643 | |
644 __ jcc(Assembler::notEqual, slow_path); | |
645 // rbx: method | |
646 __ movptr(rax, Address(rsp, wordSize)); | |
647 | |
648 // check if local 0 != NULL and read field | |
649 __ testptr(rax, rax); | |
650 __ jcc(Assembler::zero, slow_path); | |
651 | |
652 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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653 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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654 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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655 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
304 | 656 // Shift codes right to get the index on the right. |
657 // The bytecode fetched looks like <index><0xb4><0x2a> | |
658 __ shrl(rdx, 2 * BitsPerByte); | |
659 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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660 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
304 | 661 |
662 // rax: local 0 | |
663 // rbx: method | |
664 // rdx: constant pool cache index | |
665 // rdi: constant pool cache | |
666 | |
667 // check if getfield has been resolved and read constant pool cache entry | |
668 // check the validity of the cache entry by testing whether _indices field | |
669 // contains Bytecode::_getfield in b1 byte. | |
670 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
671 "adjust shift below"); | |
672 __ movl(rcx, | |
673 Address(rdi, | |
674 rdx, | |
675 Address::times_8, | |
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676 ConstantPoolCache::base_offset() + |
304 | 677 ConstantPoolCacheEntry::indices_offset())); |
678 __ shrl(rcx, 2 * BitsPerByte); | |
679 __ andl(rcx, 0xFF); | |
680 __ cmpl(rcx, Bytecodes::_getfield); | |
681 __ jcc(Assembler::notEqual, slow_path); | |
682 | |
683 // Note: constant pool entry is not valid before bytecode is resolved | |
684 __ movptr(rcx, | |
685 Address(rdi, | |
686 rdx, | |
687 Address::times_8, | |
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688 ConstantPoolCache::base_offset() + |
304 | 689 ConstantPoolCacheEntry::f2_offset())); |
690 // edx: flags | |
691 __ movl(rdx, | |
692 Address(rdi, | |
693 rdx, | |
694 Address::times_8, | |
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695 ConstantPoolCache::base_offset() + |
304 | 696 ConstantPoolCacheEntry::flags_offset())); |
697 | |
698 Label notObj, notInt, notByte, notShort; | |
699 const Address field_address(rax, rcx, Address::times_1); | |
700 | |
701 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
702 // because they are different sizes. | |
703 // Use the type from the constant pool cache | |
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704 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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705 // Make sure we don't need to mask edx after the above shift |
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706 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 707 |
708 __ cmpl(rdx, atos); | |
709 __ jcc(Assembler::notEqual, notObj); | |
710 // atos | |
711 __ load_heap_oop(rax, field_address); | |
712 __ jmp(xreturn_path); | |
713 | |
714 __ bind(notObj); | |
715 __ cmpl(rdx, itos); | |
716 __ jcc(Assembler::notEqual, notInt); | |
717 // itos | |
718 __ movl(rax, field_address); | |
719 __ jmp(xreturn_path); | |
720 | |
721 __ bind(notInt); | |
722 __ cmpl(rdx, btos); | |
723 __ jcc(Assembler::notEqual, notByte); | |
724 // btos | |
725 __ load_signed_byte(rax, field_address); | |
726 __ jmp(xreturn_path); | |
727 | |
728 __ bind(notByte); | |
729 __ cmpl(rdx, stos); | |
730 __ jcc(Assembler::notEqual, notShort); | |
731 // stos | |
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732 __ load_signed_short(rax, field_address); |
304 | 733 __ jmp(xreturn_path); |
734 | |
735 __ bind(notShort); | |
736 #ifdef ASSERT | |
737 Label okay; | |
738 __ cmpl(rdx, ctos); | |
739 __ jcc(Assembler::equal, okay); | |
740 __ stop("what type is this?"); | |
741 __ bind(okay); | |
742 #endif | |
743 // ctos | |
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744 __ load_unsigned_short(rax, field_address); |
304 | 745 |
746 __ bind(xreturn_path); | |
747 | |
748 // _ireturn/_areturn | |
749 __ pop(rdi); | |
750 __ mov(rsp, r13); | |
751 __ jmp(rdi); | |
752 __ ret(0); | |
753 | |
754 // generate a vanilla interpreter entry as the slow path | |
755 __ bind(slow_path); | |
756 (void) generate_normal_entry(false); | |
757 } else { | |
758 (void) generate_normal_entry(false); | |
759 } | |
760 | |
761 return entry_point; | |
762 } | |
763 | |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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764 // Method entry for java.lang.ref.Reference.get. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
765 address InterpreterGenerator::generate_Reference_get_entry(void) { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
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7402
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|
766 #if INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
767 // Code: _aload_0, _getfield, _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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768 // parameter size = 1 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
769 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
770 // The code that gets generated by this routine is split into 2 parts: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
771 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
772 // 2. The slow path - which is an expansion of the regular method entry. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
773 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
774 // Notes:- |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
775 // * In the G1 code we do not check whether we need to block for |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
776 // a safepoint. If G1 is enabled then we must execute the specialized |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
777 // code for Reference.get (except when the Reference object is null) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
778 // so that we can log the value in the referent field with an SATB |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
779 // update buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
780 // If the code for the getfield template is modified so that the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
781 // 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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changeset
|
782 // 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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changeset
|
783 // will be fine. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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784 // * The G1 code can, however, check the receiver object (the instance |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
785 // 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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changeset
|
786 // Reference object is null then we obviously cannot fetch the referent |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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787 // 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
johnc
parents:
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changeset
|
788 // regular method entry code to generate the NPE. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
789 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
790 // This code is based on generate_accessor_enty. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
791 // |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
792 // rbx: Method* |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
793 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
794 // 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
johnc
parents:
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diff
changeset
|
795 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
796 address entry = __ pc(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
797 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
798 const int referent_offset = java_lang_ref_Reference::referent_offset; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
799 guarantee(referent_offset > 0, "referent offset not initialized"); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
800 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
801 if (UseG1GC) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
802 Label slow_path; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
803 // rbx: method |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
804 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
805 // Check if local 0 != NULL |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
806 // 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
johnc
parents:
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changeset
|
807 __ movptr(rax, Address(rsp, wordSize)); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
808 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
809 __ testptr(rax, rax); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
810 __ jcc(Assembler::zero, slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
811 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
812 // rax: local 0 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
813 // rbx: method (but can be used as scratch now) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
814 // rdx: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
815 // rdi: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
816 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
817 // Generate the G1 pre-barrier code to log the value of |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
818 // the referent field in an SATB buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
819 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
820 // Load the value of the referent field. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
821 const Address field_address(rax, referent_offset); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
822 __ load_heap_oop(rax, field_address); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
823 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
824 // Generate the G1 pre-barrier code to log the value of |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
825 // the referent field in an SATB buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
826 __ g1_write_barrier_pre(noreg /* obj */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
827 rax /* pre_val */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
828 r15_thread /* thread */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
829 rbx /* tmp */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
830 true /* tosca_live */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
831 true /* expand_call */); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
832 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
833 // _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
834 __ pop(rdi); // get return address |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
835 __ mov(rsp, r13); // set sp to sender sp |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
836 __ jmp(rdi); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
837 __ ret(0); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
838 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
839 // generate a vanilla interpreter entry as the slow path |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
840 __ bind(slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
841 (void) generate_normal_entry(false); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
842 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
843 return entry; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
844 } |
8001
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jprovino
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|
845 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
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|
846 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
847 // If G1 is not enabled then attempt to go through the accessor entry point |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
848 // Reference.get is an accessor |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
849 return generate_accessor_entry(); |
e1162778c1c8
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|
850 } |
e1162778c1c8
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|
851 |
11080
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|
852 /** |
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|
853 * Method entry for static native methods: |
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|
854 * int java.util.zip.CRC32.update(int crc, int b) |
b800986664f4
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|
855 */ |
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|
856 address InterpreterGenerator::generate_CRC32_update_entry() { |
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|
857 if (UseCRC32Intrinsics) { |
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|
858 address entry = __ pc(); |
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|
859 |
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|
860 // rbx,: Method* |
12070
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861 // 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
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862 // c_rarg0: scratch (rdi on non-Win64, rcx on Win64) |
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
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863 // c_rarg1: scratch (rsi on non-Win64, rdx on Win64) |
11080
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864 |
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865 Label slow_path; |
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866 // If we need a safepoint check, generate full interpreter entry. |
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|
867 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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868 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
b800986664f4
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869 SafepointSynchronize::_not_synchronized); |
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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870 __ jcc(Assembler::notEqual, slow_path); |
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|
871 |
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|
872 // We don't generate local frame and don't align stack because |
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873 // we call stub code and there is no safepoint on this path. |
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|
874 |
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|
875 // Load parameters |
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|
876 const Register crc = rax; // crc |
12070
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bharadwaj
parents:
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|
877 const Register val = c_rarg0; // source java byte value |
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
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878 const Register tbl = c_rarg1; // scratch |
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879 |
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880 // Arguments are reversed on java expression stack |
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881 __ movl(val, Address(rsp, wordSize)); // byte value |
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882 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
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883 |
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884 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
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885 __ notl(crc); // ~crc |
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886 __ update_byte_crc32(crc, val, tbl); |
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887 __ notl(crc); // ~crc |
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888 // result in rax |
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889 |
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890 // _areturn |
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891 __ pop(rdi); // get return address |
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892 __ mov(rsp, r13); // set sp to sender sp |
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893 __ jmp(rdi); |
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894 |
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895 // generate a vanilla native entry as the slow path |
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896 __ bind(slow_path); |
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897 |
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898 (void) generate_native_entry(false); |
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899 |
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900 return entry; |
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901 } |
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902 return generate_native_entry(false); |
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903 } |
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904 |
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905 /** |
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906 * Method entry for static native methods: |
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907 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
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908 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
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909 */ |
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910 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
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911 if (UseCRC32Intrinsics) { |
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912 address entry = __ pc(); |
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913 |
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914 // rbx,: Method* |
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915 // r13: senderSP must preserved for slow path, set SP to it on fast path |
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916 |
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917 Label slow_path; |
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918 // If we need a safepoint check, generate full interpreter entry. |
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919 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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920 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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921 SafepointSynchronize::_not_synchronized); |
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922 __ jcc(Assembler::notEqual, slow_path); |
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923 |
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924 // We don't generate local frame and don't align stack because |
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925 // we call stub code and there is no safepoint on this path. |
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926 |
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927 // Load parameters |
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928 const Register crc = c_rarg0; // crc |
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929 const Register buf = c_rarg1; // source java byte array address |
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930 const Register len = c_rarg2; // length |
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931 const Register off = len; // offset (never overlaps with 'len') |
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932 |
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933 // Arguments are reversed on java expression stack |
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934 // Calculate address of start element |
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935 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
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936 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
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937 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
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938 __ addq(buf, off); // + offset |
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939 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
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940 } else { |
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941 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
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942 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
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943 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
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944 __ addq(buf, off); // + offset |
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945 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
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946 } |
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947 // Can now load 'len' since we're finished with 'off' |
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948 __ movl(len, Address(rsp, wordSize)); // Length |
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949 |
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950 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
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951 // result in rax |
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952 |
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953 // _areturn |
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954 __ pop(rdi); // get return address |
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955 __ mov(rsp, r13); // set sp to sender sp |
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956 __ jmp(rdi); |
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957 |
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958 // generate a vanilla native entry as the slow path |
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959 __ bind(slow_path); |
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960 |
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961 (void) generate_native_entry(false); |
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962 |
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963 return entry; |
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964 } |
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965 return generate_native_entry(false); |
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966 } |
3249
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967 |
0 | 968 // Interpreter stub for calling a native method. (asm interpreter) |
969 // This sets up a somewhat different looking stack for calling the | |
970 // native method than the typical interpreter frame setup. | |
971 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
972 // determine code generation flags | |
973 bool inc_counter = UseCompiler || CountCompiledCalls; | |
974 | |
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975 // rbx: Method* |
0 | 976 // r13: sender sp |
977 | |
978 address entry_point = __ pc(); | |
979 | |
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980 const Address constMethod (rbx, Method::const_offset()); |
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981 const Address access_flags (rbx, Method::access_flags_offset()); |
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982 const Address size_of_parameters(rcx, ConstMethod:: |
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983 size_of_parameters_offset()); |
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984 |
0 | 985 |
986 // get parameter size (always needed) | |
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987 __ movptr(rcx, constMethod); |
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988 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 989 |
990 // native calls don't need the stack size check since they have no | |
991 // expression stack and the arguments are already on the stack and | |
992 // we only add a handful of words to the stack | |
993 | |
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994 // rbx: Method* |
0 | 995 // rcx: size of parameters |
996 // r13: sender sp | |
304 | 997 __ pop(rax); // get return address |
0 | 998 |
999 // for natives the size of locals is zero | |
1000 | |
1001 // compute beginning of parameters (r14) | |
304 | 1002 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1003 |
1004 // add 2 zero-initialized slots for native calls | |
1005 // initialize result_handler slot | |
304 | 1006 __ push((int) NULL_WORD); |
0 | 1007 // slot for oop temp |
1008 // (static native method holder mirror/jni oop result) | |
304 | 1009 __ push((int) NULL_WORD); |
0 | 1010 |
1011 // initialize fixed part of activation frame | |
1012 generate_fixed_frame(true); | |
1013 | |
1014 // make sure method is native & not abstract | |
1015 #ifdef ASSERT | |
1016 __ movl(rax, access_flags); | |
1017 { | |
1018 Label L; | |
1019 __ testl(rax, JVM_ACC_NATIVE); | |
1020 __ jcc(Assembler::notZero, L); | |
1021 __ stop("tried to execute non-native method as native"); | |
1022 __ bind(L); | |
1023 } | |
1024 { | |
1025 Label L; | |
1026 __ testl(rax, JVM_ACC_ABSTRACT); | |
1027 __ jcc(Assembler::zero, L); | |
1028 __ stop("tried to execute abstract method in interpreter"); | |
1029 __ bind(L); | |
1030 } | |
1031 #endif | |
1032 | |
1033 // Since at this point in the method invocation the exception handler | |
1034 // would try to exit the monitor of synchronized methods which hasn't | |
1035 // been entered yet, we set the thread local variable | |
1036 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1037 // check this flag. | |
1038 | |
1039 const Address do_not_unlock_if_synchronized(r15_thread, | |
1040 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1041 __ movbool(do_not_unlock_if_synchronized, true); | |
1042 | |
1043 // increment invocation count & check for overflow | |
1044 Label invocation_counter_overflow; | |
1045 if (inc_counter) { | |
1046 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
1047 } | |
1048 | |
1049 Label continue_after_compile; | |
1050 __ bind(continue_after_compile); | |
1051 | |
1052 bang_stack_shadow_pages(true); | |
1053 | |
1054 // reset the _do_not_unlock_if_synchronized flag | |
1055 __ movbool(do_not_unlock_if_synchronized, false); | |
1056 | |
1057 // check for synchronized methods | |
1058 // Must happen AFTER invocation_counter check and stack overflow check, | |
1059 // so method is not locked if overflows. | |
1060 if (synchronized) { | |
1061 lock_method(); | |
1062 } else { | |
1063 // no synchronization necessary | |
1064 #ifdef ASSERT | |
1065 { | |
1066 Label L; | |
1067 __ movl(rax, access_flags); | |
1068 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1069 __ jcc(Assembler::zero, L); | |
1070 __ stop("method needs synchronization"); | |
1071 __ bind(L); | |
1072 } | |
1073 #endif | |
1074 } | |
1075 | |
1076 // start execution | |
1077 #ifdef ASSERT | |
1078 { | |
1079 Label L; | |
1080 const Address monitor_block_top(rbp, | |
1081 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1082 __ movptr(rax, monitor_block_top); |
1083 __ cmpptr(rax, rsp); | |
0 | 1084 __ jcc(Assembler::equal, L); |
1085 __ stop("broken stack frame setup in interpreter"); | |
1086 __ bind(L); | |
1087 } | |
1088 #endif | |
1089 | |
1090 // jvmti support | |
1091 __ notify_method_entry(); | |
1092 | |
1093 // work registers | |
1094 const Register method = rbx; | |
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1095 const Register t = r11; |
0 | 1096 |
1097 // allocate space for parameters | |
1098 __ get_method(method); | |
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1099 __ movptr(t, Address(method, Method::const_offset())); |
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1100 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
1506 | 1101 __ shll(t, Interpreter::logStackElementSize); |
0 | 1102 |
304 | 1103 __ subptr(rsp, t); |
1104 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
605 | 1105 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
0 | 1106 |
1107 // get signature handler | |
1108 { | |
1109 Label L; | |
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1110 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1111 __ testptr(t, t); |
0 | 1112 __ jcc(Assembler::notZero, L); |
1113 __ call_VM(noreg, | |
1114 CAST_FROM_FN_PTR(address, | |
1115 InterpreterRuntime::prepare_native_call), | |
1116 method); | |
1117 __ get_method(method); | |
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1118 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1119 __ bind(L); |
1120 } | |
1121 | |
1122 // call signature handler | |
1123 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
1124 "adjust this code"); | |
1125 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
1126 "adjust this code"); | |
1127 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
1128 "adjust this code"); | |
1129 | |
1130 // The generated handlers do not touch RBX (the method oop). | |
1131 // However, large signatures cannot be cached and are generated | |
1132 // each time here. The slow-path generator can do a GC on return, | |
1133 // so we must reload it after the call. | |
1134 __ call(t); | |
1135 __ get_method(method); // slow path can do a GC, reload RBX | |
1136 | |
1137 | |
1138 // result handler is in rax | |
1139 // set result handler | |
304 | 1140 __ movptr(Address(rbp, |
1141 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
1142 rax); | |
0 | 1143 |
1144 // pass mirror handle if static call | |
1145 { | |
1146 Label L; | |
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1147 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1148 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1149 __ testl(t, JVM_ACC_STATIC); |
1150 __ jcc(Assembler::zero, L); | |
1151 // get mirror | |
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1152 __ movptr(t, Address(method, Method::const_offset())); |
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1153 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1154 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1155 __ movptr(t, Address(t, mirror_offset)); |
0 | 1156 // copy mirror into activation frame |
304 | 1157 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
0 | 1158 t); |
1159 // pass handle to mirror | |
304 | 1160 __ lea(c_rarg1, |
1161 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
0 | 1162 __ bind(L); |
1163 } | |
1164 | |
1165 // get native function entry point | |
1166 { | |
1167 Label L; | |
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1168 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1169 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
1170 __ movptr(rscratch2, unsatisfied.addr()); | |
304 | 1171 __ cmpptr(rax, rscratch2); |
0 | 1172 __ jcc(Assembler::notEqual, L); |
1173 __ call_VM(noreg, | |
1174 CAST_FROM_FN_PTR(address, | |
1175 InterpreterRuntime::prepare_native_call), | |
1176 method); | |
1177 __ get_method(method); | |
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1178 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1179 __ bind(L); |
1180 } | |
1181 | |
1182 // pass JNIEnv | |
304 | 1183 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
0 | 1184 |
1185 // It is enough that the pc() points into the right code | |
1186 // segment. It does not have to be the correct return pc. | |
1187 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
1188 | |
1189 // change thread state | |
1190 #ifdef ASSERT | |
1191 { | |
1192 Label L; | |
1193 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
1194 __ cmpl(t, _thread_in_Java); | |
1195 __ jcc(Assembler::equal, L); | |
1196 __ stop("Wrong thread state in native stub"); | |
1197 __ bind(L); | |
1198 } | |
1199 #endif | |
1200 | |
1201 // Change state to native | |
1202 | |
1203 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1204 _thread_in_native); | |
1205 | |
1206 // Call the native method. | |
1207 __ call(rax); | |
1208 // result potentially in rax or xmm0 | |
1209 | |
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1210 // Verify or restore cpu control state after JNI call |
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1211 __ restore_cpu_control_state_after_jni(); |
0 | 1212 |
1213 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
1214 // in order to extract the result of a method call. If the order of these | |
1215 // pushes change or anything else is added to the stack then the code in | |
1216 // interpreter_frame_result must also change. | |
1217 | |
1218 __ push(dtos); | |
1219 __ push(ltos); | |
1220 | |
1221 // change thread state | |
1222 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1223 _thread_in_native_trans); | |
1224 | |
1225 if (os::is_MP()) { | |
1226 if (UseMembar) { | |
1227 // Force this write out before the read below | |
1228 __ membar(Assembler::Membar_mask_bits( | |
1229 Assembler::LoadLoad | Assembler::LoadStore | | |
1230 Assembler::StoreLoad | Assembler::StoreStore)); | |
1231 } else { | |
1232 // Write serialization page so VM thread can do a pseudo remote membar. | |
1233 // We use the current thread pointer to calculate a thread specific | |
1234 // offset to write to within the page. This minimizes bus traffic | |
1235 // due to cache line collision. | |
1236 __ serialize_memory(r15_thread, rscratch2); | |
1237 } | |
1238 } | |
1239 | |
1240 // check for safepoint operation in progress and/or pending suspend requests | |
1241 { | |
1242 Label Continue; | |
1243 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1244 SafepointSynchronize::_not_synchronized); | |
1245 | |
1246 Label L; | |
1247 __ jcc(Assembler::notEqual, L); | |
1248 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1249 __ jcc(Assembler::equal, Continue); | |
1250 __ bind(L); | |
1251 | |
1252 // Don't use call_VM as it will see a possible pending exception | |
1253 // and forward it and never return here preventing us from | |
1254 // clearing _last_native_pc down below. Also can't use | |
1255 // call_VM_leaf either as it will check to see if r13 & r14 are | |
1256 // preserved and correspond to the bcp/locals pointers. So we do a | |
1257 // runtime call by hand. | |
1258 // | |
304 | 1259 __ mov(c_rarg0, r15_thread); |
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1260 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1261 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1262 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1263 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
304 | 1264 __ mov(rsp, r12); // restore sp |
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1265 __ reinit_heapbase(); |
0 | 1266 __ bind(Continue); |
1267 } | |
1268 | |
1269 // change thread state | |
1270 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1271 | |
1272 // reset_last_Java_frame | |
1273 __ reset_last_Java_frame(true, true); | |
1274 | |
1275 // reset handle block | |
304 | 1276 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
1277 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
0 | 1278 |
1279 // If result is an oop unbox and store it in frame where gc will see it | |
1280 // and result handler will pick it up | |
1281 | |
1282 { | |
1283 Label no_oop, store_result; | |
1284 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
304 | 1285 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1286 __ jcc(Assembler::notEqual, no_oop); |
1287 // retrieve result | |
1288 __ pop(ltos); | |
304 | 1289 __ testptr(rax, rax); |
0 | 1290 __ jcc(Assembler::zero, store_result); |
304 | 1291 __ movptr(rax, Address(rax, 0)); |
0 | 1292 __ bind(store_result); |
304 | 1293 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
0 | 1294 // keep stack depth as expected by pushing oop which will eventually be discarde |
1295 __ push(ltos); | |
1296 __ bind(no_oop); | |
1297 } | |
1298 | |
1299 | |
1300 { | |
1301 Label no_reguard; | |
1302 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
1303 JavaThread::stack_guard_yellow_disabled); | |
1304 __ jcc(Assembler::notEqual, no_reguard); | |
1305 | |
304 | 1306 __ pusha(); // XXX only save smashed registers |
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1307 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1308 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1309 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1310 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1311 __ mov(rsp, r12); // restore sp |
1312 __ popa(); // XXX only restore smashed registers | |
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1313 __ reinit_heapbase(); |
0 | 1314 |
1315 __ bind(no_reguard); | |
1316 } | |
1317 | |
1318 | |
1319 // The method register is junk from after the thread_in_native transition | |
1320 // until here. Also can't call_VM until the bcp has been | |
1321 // restored. Need bcp for throwing exception below so get it now. | |
1322 __ get_method(method); | |
1323 | |
1324 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
1325 // r13 == code_base() | |
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1326 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1327 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
0 | 1328 // handle exceptions (exception handling will handle unlocking!) |
1329 { | |
1330 Label L; | |
304 | 1331 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 1332 __ jcc(Assembler::zero, L); |
1333 // Note: At some point we may want to unify this with the code | |
1334 // used in call_VM_base(); i.e., we should use the | |
1335 // StubRoutines::forward_exception code. For now this doesn't work | |
1336 // here because the rsp is not correctly set at this point. | |
1337 __ MacroAssembler::call_VM(noreg, | |
1338 CAST_FROM_FN_PTR(address, | |
1339 InterpreterRuntime::throw_pending_exception)); | |
1340 __ should_not_reach_here(); | |
1341 __ bind(L); | |
1342 } | |
1343 | |
1344 // do unlocking if necessary | |
1345 { | |
1346 Label L; | |
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1347 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1348 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1349 __ jcc(Assembler::zero, L); | |
1350 // the code below should be shared with interpreter macro | |
1351 // assembler implementation | |
1352 { | |
1353 Label unlock; | |
1354 // BasicObjectLock will be first in list, since this is a | |
1355 // synchronized method. However, need to check that the object | |
1356 // has not been unlocked by an explicit monitorexit bytecode. | |
1357 const Address monitor(rbp, | |
1358 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
1359 wordSize - sizeof(BasicObjectLock))); | |
1360 | |
1361 // monitor expect in c_rarg1 for slow unlock path | |
304 | 1362 __ lea(c_rarg1, monitor); // address of first monitor |
0 | 1363 |
304 | 1364 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
1365 __ testptr(t, t); | |
0 | 1366 __ jcc(Assembler::notZero, unlock); |
1367 | |
1368 // Entry already unlocked, need to throw exception | |
1369 __ MacroAssembler::call_VM(noreg, | |
1370 CAST_FROM_FN_PTR(address, | |
1371 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1372 __ should_not_reach_here(); | |
1373 | |
1374 __ bind(unlock); | |
1375 __ unlock_object(c_rarg1); | |
1376 } | |
1377 __ bind(L); | |
1378 } | |
1379 | |
1380 // jvmti support | |
1381 // Note: This must happen _after_ handling/throwing any exceptions since | |
1382 // the exception handler code notifies the runtime of method exits | |
1383 // too. If this happens before, method entry/exit notifications are | |
1384 // not properly paired (was bug - gri 11/22/99). | |
1385 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1386 | |
1387 // restore potential result in edx:eax, call result handler to | |
1388 // restore potential result in ST0 & handle result | |
1389 | |
1390 __ pop(ltos); | |
1391 __ pop(dtos); | |
1392 | |
304 | 1393 __ movptr(t, Address(rbp, |
1394 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
0 | 1395 __ call(t); |
1396 | |
1397 // remove activation | |
304 | 1398 __ movptr(t, Address(rbp, |
1399 frame::interpreter_frame_sender_sp_offset * | |
1400 wordSize)); // get sender sp | |
0 | 1401 __ leave(); // remove frame anchor |
304 | 1402 __ pop(rdi); // get return address |
1403 __ mov(rsp, t); // set sp to sender sp | |
0 | 1404 __ jmp(rdi); |
1405 | |
1406 if (inc_counter) { | |
1407 // Handle overflow of counter and compile method | |
1408 __ bind(invocation_counter_overflow); | |
1409 generate_counter_overflow(&continue_after_compile); | |
1410 } | |
1411 | |
1412 return entry_point; | |
1413 } | |
1414 | |
1415 // | |
1416 // Generic interpreted method entry to (asm) interpreter | |
1417 // | |
1418 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1419 // determine code generation flags | |
1420 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1421 | |
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1422 // ebx: Method* |
0 | 1423 // r13: sender sp |
1424 address entry_point = __ pc(); | |
1425 | |
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1426 const Address constMethod(rbx, Method::const_offset()); |
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1427 const Address access_flags(rbx, Method::access_flags_offset()); |
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1428 const Address size_of_parameters(rdx, |
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1429 ConstMethod::size_of_parameters_offset()); |
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1430 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1431 |
0 | 1432 |
1433 // get parameter size (always needed) | |
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1434 __ movptr(rdx, constMethod); |
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1435 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1436 |
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1437 // rbx: Method* |
0 | 1438 // rcx: size of parameters |
1439 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1440 | |
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1441 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1442 __ subl(rdx, rcx); // rdx = no. of additional locals |
1443 | |
1444 // YYY | |
1445 // __ incrementl(rdx); | |
1446 // __ andl(rdx, -2); | |
1447 | |
1448 // see if we've got enough room on the stack for locals plus overhead. | |
1449 generate_stack_overflow_check(); | |
1450 | |
1451 // get return address | |
304 | 1452 __ pop(rax); |
0 | 1453 |
1454 // compute beginning of parameters (r14) | |
304 | 1455 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1456 |
1457 // rdx - # of additional locals | |
1458 // allocate space for locals | |
1459 // explicitly initialize locals | |
1460 { | |
1461 Label exit, loop; | |
1462 __ testl(rdx, rdx); | |
1463 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1464 __ bind(loop); | |
304 | 1465 __ push((int) NULL_WORD); // initialize local variables |
0 | 1466 __ decrementl(rdx); // until everything initialized |
1467 __ jcc(Assembler::greater, loop); | |
1468 __ bind(exit); | |
1469 } | |
1470 | |
1471 // initialize fixed part of activation frame | |
1472 generate_fixed_frame(false); | |
1473 | |
1474 // make sure method is not native & not abstract | |
1475 #ifdef ASSERT | |
1476 __ movl(rax, access_flags); | |
1477 { | |
1478 Label L; | |
1479 __ testl(rax, JVM_ACC_NATIVE); | |
1480 __ jcc(Assembler::zero, L); | |
1481 __ stop("tried to execute native method as non-native"); | |
1482 __ bind(L); | |
1483 } | |
1484 { | |
1485 Label L; | |
1486 __ testl(rax, JVM_ACC_ABSTRACT); | |
1487 __ jcc(Assembler::zero, L); | |
1488 __ stop("tried to execute abstract method in interpreter"); | |
1489 __ bind(L); | |
1490 } | |
1491 #endif | |
1492 | |
1493 // Since at this point in the method invocation the exception | |
1494 // handler would try to exit the monitor of synchronized methods | |
1495 // which hasn't been entered yet, we set the thread local variable | |
1496 // _do_not_unlock_if_synchronized to true. The remove_activation | |
1497 // will check this flag. | |
1498 | |
1499 const Address do_not_unlock_if_synchronized(r15_thread, | |
1500 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1501 __ movbool(do_not_unlock_if_synchronized, true); | |
1502 | |
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1503 __ profile_parameters_type(rax, rcx, rdx); |
0 | 1504 // increment invocation count & check for overflow |
1505 Label invocation_counter_overflow; | |
1506 Label profile_method; | |
1507 Label profile_method_continue; | |
1508 if (inc_counter) { | |
1509 generate_counter_incr(&invocation_counter_overflow, | |
1510 &profile_method, | |
1511 &profile_method_continue); | |
1512 if (ProfileInterpreter) { | |
1513 __ bind(profile_method_continue); | |
1514 } | |
1515 } | |
1516 | |
1517 Label continue_after_compile; | |
1518 __ bind(continue_after_compile); | |
1519 | |
1520 // check for synchronized interpreted methods | |
1521 bang_stack_shadow_pages(false); | |
1522 | |
1523 // reset the _do_not_unlock_if_synchronized flag | |
1524 __ movbool(do_not_unlock_if_synchronized, false); | |
1525 | |
1526 // check for synchronized methods | |
1527 // Must happen AFTER invocation_counter check and stack overflow check, | |
1528 // so method is not locked if overflows. | |
1529 if (synchronized) { | |
1530 // Allocate monitor and lock method | |
1531 lock_method(); | |
1532 } else { | |
1533 // no synchronization necessary | |
1534 #ifdef ASSERT | |
1535 { | |
1536 Label L; | |
1537 __ movl(rax, access_flags); | |
1538 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1539 __ jcc(Assembler::zero, L); | |
1540 __ stop("method needs synchronization"); | |
1541 __ bind(L); | |
1542 } | |
1543 #endif | |
1544 } | |
1545 | |
1546 // start execution | |
1547 #ifdef ASSERT | |
1548 { | |
1549 Label L; | |
1550 const Address monitor_block_top (rbp, | |
1551 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1552 __ movptr(rax, monitor_block_top); |
1553 __ cmpptr(rax, rsp); | |
0 | 1554 __ jcc(Assembler::equal, L); |
1555 __ stop("broken stack frame setup in interpreter"); | |
1556 __ bind(L); | |
1557 } | |
1558 #endif | |
1559 | |
1560 // jvmti support | |
1561 __ notify_method_entry(); | |
1562 | |
1563 __ dispatch_next(vtos); | |
1564 | |
1565 // invocation counter overflow | |
1566 if (inc_counter) { | |
1567 if (ProfileInterpreter) { | |
1568 // We have decided to profile this method in the interpreter | |
1569 __ bind(profile_method); | |
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1570 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1571 __ set_method_data_pointer_for_bcp(); |
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|
1572 __ get_method(rbx); |
0 | 1573 __ jmp(profile_method_continue); |
1574 } | |
1575 // Handle overflow of counter and compile method | |
1576 __ bind(invocation_counter_overflow); | |
1577 generate_counter_overflow(&continue_after_compile); | |
1578 } | |
1579 | |
1580 return entry_point; | |
1581 } | |
1582 | |
1583 // Entry points | |
1584 // | |
1585 // Here we generate the various kind of entries into the interpreter. | |
1586 // The two main entry type are generic bytecode methods and native | |
1587 // call method. These both come in synchronized and non-synchronized | |
1588 // versions but the frame layout they create is very similar. The | |
1589 // other method entry types are really just special purpose entries | |
1590 // that are really entry and interpretation all in one. These are for | |
1591 // trivial methods like accessor, empty, or special math methods. | |
1592 // | |
1593 // When control flow reaches any of the entry types for the interpreter | |
1594 // the following holds -> | |
1595 // | |
1596 // Arguments: | |
1597 // | |
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1598 // rbx: Method* |
0 | 1599 // |
1600 // Stack layout immediately at entry | |
1601 // | |
1602 // [ return address ] <--- rsp | |
1603 // [ parameter n ] | |
1604 // ... | |
1605 // [ parameter 1 ] | |
1606 // [ expression stack ] (caller's java expression stack) | |
1607 | |
1608 // Assuming that we don't go to one of the trivial specialized entries | |
1609 // the stack will look like below when we are ready to execute the | |
1610 // first bytecode (or call the native routine). The register usage | |
1611 // will be as the template based interpreter expects (see | |
1612 // interpreter_amd64.hpp). | |
1613 // | |
1614 // local variables follow incoming parameters immediately; i.e. | |
1615 // the return address is moved to the end of the locals). | |
1616 // | |
1617 // [ monitor entry ] <--- rsp | |
1618 // ... | |
1619 // [ monitor entry ] | |
1620 // [ expr. stack bottom ] | |
1621 // [ saved r13 ] | |
1622 // [ current r14 ] | |
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1623 // [ Method* ] |
0 | 1624 // [ saved ebp ] <--- rbp |
1625 // [ return address ] | |
1626 // [ local variable m ] | |
1627 // ... | |
1628 // [ local variable 1 ] | |
1629 // [ parameter n ] | |
1630 // ... | |
1631 // [ parameter 1 ] <--- r14 | |
1632 | |
1633 address AbstractInterpreterGenerator::generate_method_entry( | |
1634 AbstractInterpreter::MethodKind kind) { | |
1635 // determine code generation flags | |
1636 bool synchronized = false; | |
1637 address entry_point = NULL; | |
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1638 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
0 | 1639 |
1640 switch (kind) { | |
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1641 case Interpreter::zerolocals : break; |
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1642 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
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1643 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
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1644 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
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1645 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
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1646 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
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1647 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
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6539464: Math.log() produces inconsistent results between successive runs.
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1648 |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1649 case Interpreter::java_lang_math_sin : // fall thru |
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6539464: Math.log() produces inconsistent results between successive runs.
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1650 case Interpreter::java_lang_math_cos : // fall thru |
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1651 case Interpreter::java_lang_math_tan : // fall thru |
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1652 case Interpreter::java_lang_math_abs : // fall thru |
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6539464: Math.log() produces inconsistent results between successive runs.
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1653 case Interpreter::java_lang_math_log : // fall thru |
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1654 case Interpreter::java_lang_math_log10 : // fall thru |
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1655 case Interpreter::java_lang_math_sqrt : // fall thru |
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1656 case Interpreter::java_lang_math_pow : // fall thru |
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1657 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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1658 case Interpreter::java_lang_ref_reference_get |
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1659 : entry_point = ig_this->generate_Reference_get_entry(); break; |
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1660 case Interpreter::java_util_zip_CRC32_update |
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1661 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
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1662 case Interpreter::java_util_zip_CRC32_updateBytes |
b800986664f4
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1663 : // fall thru |
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1664 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
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|
1665 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
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|
1666 default: |
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|
1667 fatal(err_msg("unexpected method kind: %d", kind)); |
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1668 break; |
0 | 1669 } |
1670 | |
1671 if (entry_point) { | |
1672 return entry_point; | |
1673 } | |
1674 | |
11080
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1675 return ig_this->generate_normal_entry(synchronized); |
0 | 1676 } |
1677 | |
1174
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1678 // These should never be compiled since the interpreter will prefer |
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1679 // the compiled version to the intrinsic version. |
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|
1680 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1681 switch (method_kind(m)) { |
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|
1682 case Interpreter::java_lang_math_sin : // fall thru |
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1683 case Interpreter::java_lang_math_cos : // fall thru |
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6849984: Value methods for platform dependent math functions constant fold incorrectly
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1684 case Interpreter::java_lang_math_tan : // fall thru |
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1685 case Interpreter::java_lang_math_abs : // fall thru |
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1686 case Interpreter::java_lang_math_log : // fall thru |
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|
1687 case Interpreter::java_lang_math_log10 : // fall thru |
6084
6759698e3140
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|
1688 case Interpreter::java_lang_math_sqrt : // fall thru |
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|
1689 case Interpreter::java_lang_math_pow : // fall thru |
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|
1690 case Interpreter::java_lang_math_exp : |
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1691 return false; |
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diff
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|
1692 default: |
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|
1693 return true; |
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|
1694 } |
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|
1695 } |
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|
1696 |
0 | 1697 // How much stack a method activation needs in words. |
6725
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|
1698 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1699 const int entry_size = frame::interpreter_frame_monitor_size(); |
1700 | |
1701 // total overhead size: entry_size + (saved rbp thru expr stack | |
1702 // bottom). be sure to change this if you add/subtract anything | |
1703 // to/from the overhead area | |
1704 const int overhead_size = | |
1705 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
1706 | |
1707 const int stub_code = frame::entry_frame_after_call_words; | |
10393
603ca7e51354
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10141
diff
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|
1708 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1709 Interpreter::stackElementWords; |
0 | 1710 return (overhead_size + method_stack + stub_code); |
1711 } | |
1712 | |
6725
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|
1713 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1714 int tempcount, |
1715 int popframe_extra_args, | |
1716 int moncount, | |
3369
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7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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|
1717 int caller_actual_parameters, |
0 | 1718 int callee_param_count, |
1719 int callee_locals, | |
1720 frame* caller, | |
1721 frame* interpreter_frame, | |
8727
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|
1722 bool is_top_frame, |
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|
1723 bool is_bottom_frame) { |
0 | 1724 // Note: This calculation must exactly parallel the frame setup |
1725 // in AbstractInterpreterGenerator::generate_method_entry. | |
1726 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1727 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
1728 // right size, as determined by a previous call to this method. | |
1729 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1730 | |
1731 // fixed size of an interpreter frame: | |
1506 | 1732 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1733 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1734 Interpreter::stackElementWords; |
0 | 1735 |
1736 int overhead = frame::sender_sp_offset - | |
1737 frame::interpreter_frame_initial_sp_offset; | |
1738 // Our locals were accounted for by the caller (or last_frame_adjust | |
1739 // on the transistion) Since the callee parameters already account | |
1740 // for the callee's params we only need to account for the extra | |
1741 // locals. | |
1742 int size = overhead + | |
1506 | 1743 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
0 | 1744 moncount * frame::interpreter_frame_monitor_size() + |
1506 | 1745 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
0 | 1746 if (interpreter_frame != NULL) { |
1747 #ifdef ASSERT | |
2416
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2245
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|
1748 if (!EnableInvokeDynamic) |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1108
diff
changeset
|
1749 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
e66fd840cb6b
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1108
diff
changeset
|
1750 // Probably, since deoptimization doesn't work yet. |
e66fd840cb6b
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1108
diff
changeset
|
1751 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1752 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1753 #endif | |
1754 | |
1755 interpreter_frame->interpreter_frame_set_method(method); | |
1756 // NOTE the difference in using sender_sp and | |
1757 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
1758 // the original sp of the caller (the unextended_sp) and | |
1759 // sender_sp is fp+16 XXX | |
1760 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1761 | |
4042
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diff
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|
1762 #ifdef ASSERT |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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diff
changeset
|
1763 if (caller->is_interpreted_frame()) { |
b20d64f83668
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changeset
|
1764 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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|
1765 } |
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|
1766 #endif |
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|
1767 |
0 | 1768 interpreter_frame->interpreter_frame_set_locals(locals); |
1769 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1770 BasicObjectLock* monbot = montop - moncount; | |
1771 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1772 | |
1773 // Set last_sp | |
1774 intptr_t* esp = (intptr_t*) monbot - | |
1506 | 1775 tempcount*Interpreter::stackElementWords - |
0 | 1776 popframe_extra_args; |
1777 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
1778 | |
1779 // All frames but the initial (oldest) interpreter frame we fill in have | |
1780 // a value for sender_sp that allows walking the stack but isn't | |
1781 // truly correct. Correct the value here. | |
1782 if (extra_locals != 0 && | |
1783 interpreter_frame->sender_sp() == | |
1784 interpreter_frame->interpreter_frame_sender_sp()) { | |
1785 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
1786 extra_locals); | |
1787 } | |
1788 *interpreter_frame->interpreter_frame_cache_addr() = | |
1789 method->constants()->cache(); | |
1790 } | |
1791 return size; | |
1792 } | |
1793 | |
1794 //----------------------------------------------------------------------------- | |
1795 // Exceptions | |
1796 | |
1797 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1798 // Entry point in previous activation (i.e., if the caller was | |
1799 // interpreted) | |
1800 Interpreter::_rethrow_exception_entry = __ pc(); | |
1801 // Restore sp to interpreter_frame_last_sp even though we are going | |
1802 // to empty the expression stack for the exception processing. | |
304 | 1803 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 1804 // rax: exception |
1805 // rdx: return address/pc that threw exception | |
1806 __ restore_bcp(); // r13 points to call/send | |
1807 __ restore_locals(); | |
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1808 __ reinit_heapbase(); // restore r12 as heapbase. |
0 | 1809 // Entry point for exceptions thrown within interpreter code |
1810 Interpreter::_throw_exception_entry = __ pc(); | |
1811 // expression stack is undefined here | |
1812 // rax: exception | |
1813 // r13: exception bcp | |
1814 __ verify_oop(rax); | |
304 | 1815 __ mov(c_rarg1, rax); |
0 | 1816 |
1817 // expression stack must be empty before entering the VM in case of | |
1818 // an exception | |
1819 __ empty_expression_stack(); | |
1820 // find exception handler address and preserve exception oop | |
1821 __ call_VM(rdx, | |
1822 CAST_FROM_FN_PTR(address, | |
1823 InterpreterRuntime::exception_handler_for_exception), | |
1824 c_rarg1); | |
1825 // rax: exception handler entry point | |
1826 // rdx: preserved exception oop | |
1827 // r13: bcp for exception handler | |
1828 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1829 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1830 | |
1831 // If the exception is not handled in the current frame the frame is | |
1832 // removed and the exception is rethrown (i.e. exception | |
1833 // continuation is _rethrow_exception). | |
1834 // | |
1835 // Note: At this point the bci is still the bxi for the instruction | |
1836 // which caused the exception and the expression stack is | |
1837 // empty. Thus, for any VM calls at this point, GC will find a legal | |
1838 // oop map (with empty expression stack). | |
1839 | |
1840 // In current activation | |
1841 // tos: exception | |
1842 // esi: exception bcp | |
1843 | |
1844 // | |
1845 // JVMTI PopFrame support | |
1846 // | |
1847 | |
1848 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1849 __ empty_expression_stack(); | |
1850 // Set the popframe_processing bit in pending_popframe_condition | |
1851 // indicating that we are currently handling popframe, so that | |
1852 // call_VMs that may happen later do not trigger new popframe | |
1853 // handling cycles. | |
1854 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
1855 __ orl(rdx, JavaThread::popframe_processing_bit); | |
1856 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
1857 | |
1858 { | |
1859 // Check to see whether we are returning to a deoptimized frame. | |
1860 // (The PopFrame call ensures that the caller of the popped frame is | |
1861 // either interpreted or compiled and deoptimizes it if compiled.) | |
1862 // In this case, we can't call dispatch_next() after the frame is | |
1863 // popped, but instead must save the incoming arguments and restore | |
1864 // them after deoptimization has occurred. | |
1865 // | |
1866 // Note that we don't compare the return PC against the | |
1867 // deoptimization blob's unpack entry because of the presence of | |
1868 // adapter frames in C2. | |
1869 Label caller_not_deoptimized; | |
304 | 1870 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1871 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1872 InterpreterRuntime::interpreter_contains), c_rarg1); | |
1873 __ testl(rax, rax); | |
1874 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1875 | |
1876 // Compute size of arguments for saving when returning to | |
1877 // deoptimized caller | |
1878 __ get_method(rax); | |
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1879 __ movptr(rax, Address(rax, Method::const_offset())); |
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1880 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
0 | 1881 size_of_parameters_offset()))); |
1506 | 1882 __ shll(rax, Interpreter::logStackElementSize); |
0 | 1883 __ restore_locals(); // XXX do we need this? |
304 | 1884 __ subptr(r14, rax); |
1885 __ addptr(r14, wordSize); | |
0 | 1886 // Save these arguments |
1887 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
1888 Deoptimization:: | |
1889 popframe_preserve_args), | |
1890 r15_thread, rax, r14); | |
1891 | |
1892 __ remove_activation(vtos, rdx, | |
1893 /* throw_monitor_exception */ false, | |
1894 /* install_monitor_exception */ false, | |
1895 /* notify_jvmdi */ false); | |
1896 | |
1897 // Inform deoptimization that it is responsible for restoring | |
1898 // these arguments | |
1899 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1900 JavaThread::popframe_force_deopt_reexecution_bit); | |
1901 | |
1902 // Continue in deoptimization handler | |
1903 __ jmp(rdx); | |
1904 | |
1905 __ bind(caller_not_deoptimized); | |
1906 } | |
1907 | |
1908 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
1909 /* throw_monitor_exception */ false, | |
1910 /* install_monitor_exception */ false, | |
1911 /* notify_jvmdi */ false); | |
1912 | |
1913 // Finish with popframe handling | |
1914 // A previous I2C followed by a deoptimization might have moved the | |
1915 // outgoing arguments further up the stack. PopFrame expects the | |
1916 // mutations to those outgoing arguments to be preserved and other | |
1917 // constraints basically require this frame to look exactly as | |
1918 // though it had previously invoked an interpreted activation with | |
1919 // no space between the top of the expression stack (current | |
1920 // last_sp) and the top of stack. Rather than force deopt to | |
1921 // maintain this kind of invariant all the time we call a small | |
1922 // fixup routine to move the mutated arguments onto the top of our | |
1923 // expression stack if necessary. | |
304 | 1924 __ mov(c_rarg1, rsp); |
1925 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
0 | 1926 // PC must point into interpreter here |
1927 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
1928 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
1929 __ reset_last_Java_frame(true, true); | |
1930 // Restore the last_sp and null it out | |
304 | 1931 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
1932 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
0 | 1933 |
1934 __ restore_bcp(); // XXX do we need this? | |
1935 __ restore_locals(); // XXX do we need this? | |
1936 // The method data pointer was incremented already during | |
1937 // call profiling. We have to restore the mdp for the current bcp. | |
1938 if (ProfileInterpreter) { | |
1939 __ set_method_data_pointer_for_bcp(); | |
1940 } | |
1941 | |
1942 // Clear the popframe condition flag | |
1943 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1944 JavaThread::popframe_inactive); | |
1945 | |
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1946 #if INCLUDE_JVMTI |
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1947 if (EnableInvokeDynamic) { |
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1948 Label L_done; |
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1949 const Register local0 = r14; |
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1950 |
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1951 __ cmpb(Address(r13, 0), Bytecodes::_invokestatic); |
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1952 __ jcc(Assembler::notEqual, L_done); |
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1953 |
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1954 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1955 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1956 |
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1957 __ get_method(rdx); |
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1958 __ movptr(rax, Address(local0, 0)); |
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1959 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, r13); |
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1960 |
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1961 __ testptr(rax, rax); |
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1962 __ jcc(Assembler::zero, L_done); |
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1963 |
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1964 __ movptr(Address(rbx, 0), rax); |
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1965 __ bind(L_done); |
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1966 } |
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1967 #endif // INCLUDE_JVMTI |
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1968 |
0 | 1969 __ dispatch_next(vtos); |
1970 // end of PopFrame support | |
1971 | |
1972 Interpreter::_remove_activation_entry = __ pc(); | |
1973 | |
1974 // preserve exception over this code sequence | |
1975 __ pop_ptr(rax); | |
304 | 1976 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
0 | 1977 // remove the activation (without doing throws on illegalMonitorExceptions) |
1978 __ remove_activation(vtos, rdx, false, true, false); | |
1979 // restore exception | |
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1980 __ get_vm_result(rax, r15_thread); |
0 | 1981 |
1982 // In between activations - previous activation type unknown yet | |
1983 // compute continuation point - the continuation point expects the | |
1984 // following registers set up: | |
1985 // | |
1986 // rax: exception | |
1987 // rdx: return address/pc that threw exception | |
1988 // rsp: expression stack of caller | |
1989 // rbp: ebp of caller | |
304 | 1990 __ push(rax); // save exception |
1991 __ push(rdx); // save return address | |
0 | 1992 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1993 SharedRuntime::exception_handler_for_return_address), | |
1295 | 1994 r15_thread, rdx); |
304 | 1995 __ mov(rbx, rax); // save exception handler |
1996 __ pop(rdx); // restore return address | |
1997 __ pop(rax); // restore exception | |
0 | 1998 // Note that an "issuing PC" is actually the next PC after the call |
1999 __ jmp(rbx); // jump to exception | |
2000 // handler of caller | |
2001 } | |
2002 | |
2003 | |
2004 // | |
2005 // JVMTI ForceEarlyReturn support | |
2006 // | |
2007 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
2008 address entry = __ pc(); | |
2009 | |
2010 __ restore_bcp(); | |
2011 __ restore_locals(); | |
2012 __ empty_expression_stack(); | |
2013 __ load_earlyret_value(state); | |
2014 | |
304 | 2015 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 2016 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
2017 | |
2018 // Clear the earlyret state | |
2019 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
2020 | |
2021 __ remove_activation(state, rsi, | |
2022 false, /* throw_monitor_exception */ | |
2023 false, /* install_monitor_exception */ | |
2024 true); /* notify_jvmdi */ | |
2025 __ jmp(rsi); | |
2026 | |
2027 return entry; | |
2028 } // end of ForceEarlyReturn support | |
2029 | |
2030 | |
2031 //----------------------------------------------------------------------------- | |
2032 // Helper for vtos entry point generation | |
2033 | |
2034 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
2035 address& bep, | |
2036 address& cep, | |
2037 address& sep, | |
2038 address& aep, | |
2039 address& iep, | |
2040 address& lep, | |
2041 address& fep, | |
2042 address& dep, | |
2043 address& vep) { | |
2044 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
2045 Label L; | |
2046 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
2047 fep = __ pc(); __ push_f(); __ jmp(L); | |
2048 dep = __ pc(); __ push_d(); __ jmp(L); | |
2049 lep = __ pc(); __ push_l(); __ jmp(L); | |
2050 bep = cep = sep = | |
2051 iep = __ pc(); __ push_i(); | |
2052 vep = __ pc(); | |
2053 __ bind(L); | |
2054 generate_and_dispatch(t); | |
2055 } | |
2056 | |
2057 | |
2058 //----------------------------------------------------------------------------- | |
2059 // Generation of individual instructions | |
2060 | |
2061 // helpers for generate_and_dispatch | |
2062 | |
2063 | |
2064 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
2065 : TemplateInterpreterGenerator(code) { | |
2066 generate_all(); // down here so it can be "virtual" | |
2067 } | |
2068 | |
2069 //----------------------------------------------------------------------------- | |
2070 | |
2071 // Non-product code | |
2072 #ifndef PRODUCT | |
2073 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
2074 address entry = __ pc(); | |
2075 | |
2076 __ push(state); | |
304 | 2077 __ push(c_rarg0); |
2078 __ push(c_rarg1); | |
2079 __ push(c_rarg2); | |
2080 __ push(c_rarg3); | |
2081 __ mov(c_rarg2, rax); // Pass itos | |
0 | 2082 #ifdef _WIN64 |
2083 __ movflt(xmm3, xmm0); // Pass ftos | |
2084 #endif | |
2085 __ call_VM(noreg, | |
2086 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
2087 c_rarg1, c_rarg2, c_rarg3); | |
304 | 2088 __ pop(c_rarg3); |
2089 __ pop(c_rarg2); | |
2090 __ pop(c_rarg1); | |
2091 __ pop(c_rarg0); | |
0 | 2092 __ pop(state); |
2093 __ ret(0); // return from result handler | |
2094 | |
2095 return entry; | |
2096 } | |
2097 | |
2098 void TemplateInterpreterGenerator::count_bytecode() { | |
2099 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
2100 } | |
2101 | |
2102 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
2103 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
2104 } | |
2105 | |
2106 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2107 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
2108 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2109 __ orl(rbx, | |
2110 ((int) t->bytecode()) << | |
2111 BytecodePairHistogram::log2_number_of_codes); | |
2112 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2113 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
2114 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
2115 } | |
2116 | |
2117 | |
2118 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2119 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2120 // The run-time runtime saves the right registers, depending on | |
2121 // the tosca in-state for the given template. | |
2122 | |
2123 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2124 "entry must have been generated"); | |
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2125 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 2126 __ andptr(rsp, -16); // align stack as required by ABI |
0 | 2127 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
304 | 2128 __ mov(rsp, r12); // restore sp |
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2129 __ reinit_heapbase(); |
0 | 2130 } |
2131 | |
2132 | |
2133 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2134 Label L; | |
2135 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2136 StopInterpreterAt); | |
2137 __ jcc(Assembler::notEqual, L); | |
2138 __ int3(); | |
2139 __ bind(L); | |
2140 } | |
2141 #endif // !PRODUCT | |
304 | 2142 #endif // ! CC_INTERP |