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annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 10641:4b88e5c93f04
Minor C++ compilation fixes.
author | Christian Haeubl <haeubl@ssw.jku.at> |
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date | Mon, 08 Jul 2013 17:14:25 +0200 |
parents | 88672775a26c |
children | e7d07c9bb779 |
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" | |
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39 #include "runtime/compilationPolicy.hpp" |
1972 | 40 #include "runtime/deoptimization.hpp" |
41 #include "runtime/frame.inline.hpp" | |
42 #include "runtime/sharedRuntime.hpp" | |
43 #include "runtime/stubRoutines.hpp" | |
44 #include "runtime/synchronizer.hpp" | |
45 #include "runtime/timer.hpp" | |
46 #include "runtime/vframeArray.hpp" | |
47 #include "utilities/debug.hpp" | |
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48 #include "utilities/macros.hpp" |
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49 #ifdef GRAAL |
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50 #include "graal/graalJavaAccess.hpp" |
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51 #endif |
0 | 52 |
53 #define __ _masm-> | |
54 | |
304 | 55 #ifndef CC_INTERP |
56 | |
0 | 57 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
58 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
59 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
60 | |
61 //----------------------------------------------------------------------------- | |
62 | |
63 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
64 address entry = __ pc(); | |
65 | |
66 #ifdef ASSERT | |
67 { | |
68 Label L; | |
304 | 69 __ lea(rax, Address(rbp, |
70 frame::interpreter_frame_monitor_block_top_offset * | |
71 wordSize)); | |
72 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
73 // grows negative) | |
0 | 74 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
75 __ stop ("interpreter frame not set up"); | |
76 __ bind(L); | |
77 } | |
78 #endif // ASSERT | |
79 // Restore bcp under the assumption that the current frame is still | |
80 // interpreted | |
81 __ restore_bcp(); | |
82 | |
83 // expression stack must be empty before entering the VM if an | |
84 // exception happened | |
85 __ empty_expression_stack(); | |
86 // throw exception | |
87 __ call_VM(noreg, | |
88 CAST_FROM_FN_PTR(address, | |
89 InterpreterRuntime::throw_StackOverflowError)); | |
90 return entry; | |
91 } | |
92 | |
93 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
94 const char* name) { | |
95 address entry = __ pc(); | |
96 // expression stack must be empty before entering the VM if an | |
97 // exception happened | |
98 __ empty_expression_stack(); | |
99 // setup parameters | |
100 // ??? convention: expect aberrant index in register ebx | |
101 __ lea(c_rarg1, ExternalAddress((address)name)); | |
102 __ call_VM(noreg, | |
103 CAST_FROM_FN_PTR(address, | |
104 InterpreterRuntime:: | |
105 throw_ArrayIndexOutOfBoundsException), | |
106 c_rarg1, rbx); | |
107 return entry; | |
108 } | |
109 | |
110 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
111 address entry = __ pc(); | |
112 | |
113 // object is at TOS | |
304 | 114 __ pop(c_rarg1); |
0 | 115 |
116 // expression stack must be empty before entering the VM if an | |
117 // exception happened | |
118 __ empty_expression_stack(); | |
119 | |
120 __ call_VM(noreg, | |
121 CAST_FROM_FN_PTR(address, | |
122 InterpreterRuntime:: | |
123 throw_ClassCastException), | |
124 c_rarg1); | |
125 return entry; | |
126 } | |
127 | |
128 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
129 const char* name, const char* message, bool pass_oop) { | |
130 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
131 address entry = __ pc(); | |
132 if (pass_oop) { | |
133 // object is at TOS | |
304 | 134 __ pop(c_rarg2); |
0 | 135 } |
136 // expression stack must be empty before entering the VM if an | |
137 // exception happened | |
138 __ empty_expression_stack(); | |
139 // setup parameters | |
140 __ lea(c_rarg1, ExternalAddress((address)name)); | |
141 if (pass_oop) { | |
142 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
143 InterpreterRuntime:: | |
144 create_klass_exception), | |
145 c_rarg1, c_rarg2); | |
146 } else { | |
147 // kind of lame ExternalAddress can't take NULL because | |
148 // external_word_Relocation will assert. | |
149 if (message != NULL) { | |
150 __ lea(c_rarg2, ExternalAddress((address)message)); | |
151 } else { | |
152 __ movptr(c_rarg2, NULL_WORD); | |
153 } | |
154 __ call_VM(rax, | |
155 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
156 c_rarg1, c_rarg2); | |
157 } | |
158 // throw exception | |
159 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
160 return entry; | |
161 } | |
162 | |
163 | |
164 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
165 address entry = __ pc(); | |
166 // NULL last_sp until next java call | |
304 | 167 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 168 __ dispatch_next(state); |
169 return entry; | |
170 } | |
171 | |
172 | |
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173 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
0 | 174 address entry = __ pc(); |
175 | |
176 // Restore stack bottom in case i2c adjusted stack | |
304 | 177 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
0 | 178 // and NULL it as marker that esp is now tos until next java call |
304 | 179 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 180 |
181 __ restore_bcp(); | |
182 __ restore_locals(); | |
304 | 183 |
1108 | 184 Label L_got_cache, L_giant_index; |
185 if (EnableInvokeDynamic) { | |
186 __ cmpb(Address(r13, 0), Bytecodes::_invokedynamic); | |
187 __ jcc(Assembler::equal, L_giant_index); | |
188 } | |
1565 | 189 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
1108 | 190 __ bind(L_got_cache); |
0 | 191 __ movl(rbx, Address(rbx, rcx, |
1108 | 192 Address::times_ptr, |
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193 in_bytes(ConstantPoolCache::base_offset()) + |
0 | 194 3 * wordSize)); |
195 __ andl(rbx, 0xFF); | |
304 | 196 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 197 __ dispatch_next(state, step); |
1108 | 198 |
199 // out of the main line of code... | |
200 if (EnableInvokeDynamic) { | |
201 __ bind(L_giant_index); | |
1565 | 202 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
1108 | 203 __ jmp(L_got_cache); |
204 } | |
205 | |
0 | 206 return entry; |
207 } | |
208 | |
209 | |
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210 address InterpreterGenerator::generate_deopt_entry_for(TosState state, |
0 | 211 int step) { |
212 address entry = __ pc(); | |
213 // NULL last_sp until next java call | |
304 | 214 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 215 __ restore_bcp(); |
216 __ restore_locals(); | |
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217 // Check if we need to take lock at entry of synchronized method. |
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218 { |
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219 Label L; |
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220 __ cmpb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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221 __ jcc(Assembler::zero, L); |
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222 // Clear flag. |
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223 __ movb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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224 // Satisfy calling convention for lock_method(). |
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225 __ get_method(rbx); |
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226 // Take lock. |
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227 lock_method(); |
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228 __ bind(L); |
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229 } |
0 | 230 // handle exceptions |
231 { | |
232 Label L; | |
304 | 233 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 234 __ jcc(Assembler::zero, L); |
235 __ call_VM(noreg, | |
236 CAST_FROM_FN_PTR(address, | |
237 InterpreterRuntime::throw_pending_exception)); | |
238 __ should_not_reach_here(); | |
239 __ bind(L); | |
240 } | |
241 __ dispatch_next(state, step); | |
242 return entry; | |
243 } | |
244 | |
245 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
246 int i = 0; | |
247 switch (type) { | |
248 case T_BOOLEAN: i = 0; break; | |
249 case T_CHAR : i = 1; break; | |
250 case T_BYTE : i = 2; break; | |
251 case T_SHORT : i = 3; break; | |
252 case T_INT : i = 4; break; | |
253 case T_LONG : i = 5; break; | |
254 case T_VOID : i = 6; break; | |
255 case T_FLOAT : i = 7; break; | |
256 case T_DOUBLE : i = 8; break; | |
257 case T_OBJECT : i = 9; break; | |
258 case T_ARRAY : i = 9; break; | |
259 default : ShouldNotReachHere(); | |
260 } | |
261 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
262 "index out of bounds"); | |
263 return i; | |
264 } | |
265 | |
266 | |
267 address TemplateInterpreterGenerator::generate_result_handler_for( | |
268 BasicType type) { | |
269 address entry = __ pc(); | |
270 switch (type) { | |
271 case T_BOOLEAN: __ c2bool(rax); break; | |
272 case T_CHAR : __ movzwl(rax, rax); break; | |
273 case T_BYTE : __ sign_extend_byte(rax); break; | |
274 case T_SHORT : __ sign_extend_short(rax); break; | |
275 case T_INT : /* nothing to do */ break; | |
276 case T_LONG : /* nothing to do */ break; | |
277 case T_VOID : /* nothing to do */ break; | |
278 case T_FLOAT : /* nothing to do */ break; | |
279 case T_DOUBLE : /* nothing to do */ break; | |
280 case T_OBJECT : | |
281 // retrieve result from frame | |
304 | 282 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
0 | 283 // and verify it |
284 __ verify_oop(rax); | |
285 break; | |
286 default : ShouldNotReachHere(); | |
287 } | |
288 __ ret(0); // return from result handler | |
289 return entry; | |
290 } | |
291 | |
292 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
293 TosState state, | |
294 address runtime_entry) { | |
295 address entry = __ pc(); | |
296 __ push(state); | |
297 __ call_VM(noreg, runtime_entry); | |
298 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
299 return entry; | |
300 } | |
301 | |
302 | |
303 | |
304 // Helpers for commoning out cases in the various type of method entries. | |
305 // | |
306 | |
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307 #ifdef GRAALVM |
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308 |
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309 void graal_initialize_time(JavaThread* thread) { |
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310 assert(ProfileInterpreter, "must be profiling interpreter"); |
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311 frame fr = thread->last_frame(); |
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312 assert(fr.is_interpreted_frame(), "must come from interpreter"); |
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313 assert(fr.interpreter_frame_method()->method_counters() != NULL, "need to initialize method counters"); |
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314 fr.interpreter_frame_method()->method_counters()->set_graal_invocation_time(os::javaTimeNanos()); |
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315 } |
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316 |
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317 #endif // GRAALVM |
0 | 318 |
319 // increment invocation count & check for overflow | |
320 // | |
321 // Note: checking for negative value instead of overflow | |
322 // so we have a 'sticky' overflow test | |
323 // | |
324 // rbx: method | |
325 // ecx: invocation counter | |
326 // | |
327 void InterpreterGenerator::generate_counter_incr( | |
328 Label* overflow, | |
329 Label* profile_method, | |
330 Label* profile_method_continue) { | |
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331 Label done; |
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332 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
1783 | 333 if (TieredCompilation) { |
334 int increment = InvocationCounter::count_increment; | |
335 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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336 Label no_mdo; |
1783 | 337 if (ProfileInterpreter) { |
338 // Are we profiling? | |
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339 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
1783 | 340 __ testptr(rax, rax); |
341 __ jccb(Assembler::zero, no_mdo); | |
342 // Increment counter in the MDO | |
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343 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
1783 | 344 in_bytes(InvocationCounter::counter_offset())); |
345 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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346 __ jmp(done); |
1783 | 347 } |
348 __ bind(no_mdo); | |
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349 // Increment counter in MethodCounters |
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350 const Address invocation_counter(rax, |
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351 MethodCounters::invocation_counter_offset() + |
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352 InvocationCounter::counter_offset()); |
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353 __ get_method_counters(rbx, rax, done); |
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354 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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355 false, Assembler::zero, overflow); |
1783 | 356 __ bind(done); |
357 } else { | |
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358 const Address backedge_counter(rax, |
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359 MethodCounters::backedge_counter_offset() + |
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360 InvocationCounter::counter_offset()); |
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361 const Address invocation_counter(rax, |
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362 MethodCounters::invocation_counter_offset() + |
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363 InvocationCounter::counter_offset()); |
0 | 364 |
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365 __ get_method_counters(rbx, rax, done); |
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366 |
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367 if (ProfileInterpreter) { |
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368 __ incrementl(Address(rax, |
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369 MethodCounters::interpreter_invocation_counter_offset())); |
1783 | 370 } |
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371 |
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372 #ifdef GRAALVM |
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373 if (CompilationPolicyChoice == 4) { |
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374 Label not_zero; |
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375 __ testl(rcx, InvocationCounter::count_mask_value); |
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376 __ jcc(Assembler::notZero, not_zero); |
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377 |
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378 __ push(rax); |
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379 __ push(rcx); |
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380 __ call_VM(noreg, CAST_FROM_FN_PTR(address, graal_initialize_time), rdx, false); |
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381 __ set_method_data_pointer_for_bcp(); |
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382 __ get_method(rbx); |
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383 __ pop(rcx); |
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384 __ pop(rax); |
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385 |
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386 #ifdef ASSERT |
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387 __ testl(rcx, InvocationCounter::count_mask_value); |
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388 __ jcc(Assembler::zero, not_zero); |
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389 __ stop("unexpected counter value in rcx"); |
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390 #endif |
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391 |
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392 __ bind(not_zero); |
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393 } |
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394 #endif // GRAALVM |
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395 |
1783 | 396 // Update standard invocation counters |
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397 __ movl(rcx, invocation_counter); |
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398 __ incrementl(rcx, InvocationCounter::count_increment); |
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399 __ movl(invocation_counter, rcx); // save invocation count |
0 | 400 |
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401 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 402 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
0 | 403 |
1783 | 404 __ addl(rcx, rax); // add both counters |
0 | 405 |
1783 | 406 // profile_method is non-null only for interpreted method so |
407 // profile_method != NULL == !native_call | |
408 | |
409 if (ProfileInterpreter && profile_method != NULL) { | |
410 // Test to see if we should create a method data oop | |
411 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
412 __ jcc(Assembler::less, *profile_method_continue); | |
0 | 413 |
1783 | 414 // if no method data exists, go to profile_method |
415 __ test_method_data_pointer(rax, *profile_method); | |
416 } | |
417 | |
418 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
419 __ jcc(Assembler::aboveEqual, *overflow); | |
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420 __ bind(done); |
0 | 421 } |
422 } | |
423 | |
424 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
425 | |
426 // Asm interpreter on entry | |
427 // r14 - locals | |
428 // r13 - bcp | |
429 // rbx - method | |
430 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
431 // rbp - interpreter frame | |
432 | |
433 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
434 // Everything as it was on entry | |
435 // rdx is not restored. Doesn't appear to really be set. | |
436 | |
437 // InterpreterRuntime::frequency_counter_overflow takes two | |
438 // arguments, the first (thread) is passed by call_VM, the second | |
439 // indicates if the counter overflow occurs at a backwards branch | |
440 // (NULL bcp). We pass zero for it. The call returns the address | |
441 // of the verified entry point for the method or NULL if the | |
442 // compilation did not complete (either went background or bailed | |
443 // out). | |
444 __ movl(c_rarg1, 0); | |
445 __ call_VM(noreg, | |
446 CAST_FROM_FN_PTR(address, | |
447 InterpreterRuntime::frequency_counter_overflow), | |
448 c_rarg1); | |
449 | |
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450 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 451 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
452 // and jump to the interpreted entry. | |
453 __ jmp(*do_continue, relocInfo::none); | |
454 } | |
455 | |
456 // See if we've got enough room on the stack for locals plus overhead. | |
457 // The expression stack grows down incrementally, so the normal guard | |
458 // page mechanism will work for that. | |
459 // | |
460 // NOTE: Since the additional locals are also always pushed (wasn't | |
461 // obvious in generate_method_entry) so the guard should work for them | |
462 // too. | |
463 // | |
464 // Args: | |
465 // rdx: number of additional locals this frame needs (what we must check) | |
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466 // rbx: Method* |
0 | 467 // |
468 // Kills: | |
469 // rax | |
470 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
471 | |
472 // monitor entry size: see picture of stack set | |
473 // (generate_method_entry) and frame_amd64.hpp | |
474 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
475 | |
476 // total overhead size: entry_size + (saved rbp through expr stack | |
477 // bottom). be sure to change this if you add/subtract anything | |
478 // to/from the overhead area | |
479 const int overhead_size = | |
480 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
481 | |
482 const int page_size = os::vm_page_size(); | |
483 | |
484 Label after_frame_check; | |
485 | |
486 // see if the frame is greater than one page in size. If so, | |
487 // then we need to verify there is enough stack space remaining | |
488 // for the additional locals. | |
1506 | 489 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
0 | 490 __ jcc(Assembler::belowEqual, after_frame_check); |
491 | |
492 // compute rsp as if this were going to be the last frame on | |
493 // the stack before the red zone | |
494 | |
495 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
496 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
497 | |
498 // locals + overhead, in bytes | |
304 | 499 __ mov(rax, rdx); |
1506 | 500 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
304 | 501 __ addptr(rax, overhead_size); |
0 | 502 |
503 #ifdef ASSERT | |
504 Label stack_base_okay, stack_size_okay; | |
505 // verify that thread stack base is non-zero | |
304 | 506 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 507 __ jcc(Assembler::notEqual, stack_base_okay); |
508 __ stop("stack base is zero"); | |
509 __ bind(stack_base_okay); | |
510 // verify that thread stack size is non-zero | |
304 | 511 __ cmpptr(stack_size, 0); |
0 | 512 __ jcc(Assembler::notEqual, stack_size_okay); |
513 __ stop("stack size is zero"); | |
514 __ bind(stack_size_okay); | |
515 #endif | |
516 | |
517 // Add stack base to locals and subtract stack size | |
304 | 518 __ addptr(rax, stack_base); |
519 __ subptr(rax, stack_size); | |
0 | 520 |
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521 // Use the maximum number of pages we might bang. |
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522 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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523 (StackRedPages+StackYellowPages); |
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524 |
0 | 525 // add in the red and yellow zone sizes |
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526 __ addptr(rax, max_pages * page_size); |
0 | 527 |
528 // check against the current stack bottom | |
304 | 529 __ cmpptr(rsp, rax); |
0 | 530 __ jcc(Assembler::above, after_frame_check); |
531 | |
4743 | 532 // Restore sender's sp as SP. This is necessary if the sender's |
533 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
534 // and safer anyway in case of JSR292 adaptations. | |
535 | |
536 __ pop(rax); // return address must be moved if SP is changed | |
537 __ mov(rsp, r13); | |
538 __ push(rax); | |
539 | |
540 // Note: the restored frame is not necessarily interpreted. | |
541 // Use the shared runtime version of the StackOverflowError. | |
542 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
543 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 544 |
545 // all done with frame size check | |
546 __ bind(after_frame_check); | |
547 } | |
548 | |
549 // Allocate monitor and lock method (asm interpreter) | |
550 // | |
551 // Args: | |
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552 // rbx: Method* |
0 | 553 // r14: locals |
554 // | |
555 // Kills: | |
556 // rax | |
557 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
558 // rscratch1, rscratch2 (scratch regs) | |
559 void InterpreterGenerator::lock_method(void) { | |
560 // synchronize method | |
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561 const Address access_flags(rbx, Method::access_flags_offset()); |
0 | 562 const Address monitor_block_top( |
563 rbp, | |
564 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
565 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
566 | |
567 #ifdef ASSERT | |
568 { | |
569 Label L; | |
570 __ movl(rax, access_flags); | |
571 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
572 __ jcc(Assembler::notZero, L); | |
573 __ stop("method doesn't need synchronization"); | |
574 __ bind(L); | |
575 } | |
576 #endif // ASSERT | |
577 | |
578 // get synchronization object | |
579 { | |
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580 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 581 Label done; |
582 __ movl(rax, access_flags); | |
583 __ testl(rax, JVM_ACC_STATIC); | |
584 // get receiver (assume this is frequent case) | |
304 | 585 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
0 | 586 __ jcc(Assembler::zero, done); |
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587 __ movptr(rax, Address(rbx, Method::const_offset())); |
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588 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
304 | 589 __ movptr(rax, Address(rax, |
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590 ConstantPool::pool_holder_offset_in_bytes())); |
304 | 591 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 592 |
593 #ifdef ASSERT | |
594 { | |
595 Label L; | |
304 | 596 __ testptr(rax, rax); |
0 | 597 __ jcc(Assembler::notZero, L); |
598 __ stop("synchronization object is NULL"); | |
599 __ bind(L); | |
600 } | |
601 #endif // ASSERT | |
602 | |
603 __ bind(done); | |
604 } | |
605 | |
606 // add space for monitor & lock | |
304 | 607 __ subptr(rsp, entry_size); // add space for a monitor entry |
608 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
0 | 609 // store object |
304 | 610 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
611 __ movptr(c_rarg1, rsp); // object address | |
0 | 612 __ lock_object(c_rarg1); |
613 } | |
614 | |
615 // Generate a fixed interpreter frame. This is identical setup for | |
616 // interpreted methods and for native methods hence the shared code. | |
617 // | |
618 // Args: | |
619 // rax: return address | |
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620 // rbx: Method* |
0 | 621 // r14: pointer to locals |
622 // r13: sender sp | |
623 // rdx: cp cache | |
624 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
625 // initialize fixed part of activation frame | |
304 | 626 __ push(rax); // save return address |
0 | 627 __ enter(); // save old & set new rbp |
304 | 628 __ push(r13); // set sender sp |
629 __ push((int)NULL_WORD); // leave last_sp as null | |
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630 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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631 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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632 __ push(rbx); // save Method* |
0 | 633 if (ProfileInterpreter) { |
634 Label method_data_continue; | |
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635 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 636 __ testptr(rdx, rdx); |
0 | 637 __ jcc(Assembler::zero, method_data_continue); |
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638 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 639 __ bind(method_data_continue); |
304 | 640 __ push(rdx); // set the mdp (method data pointer) |
0 | 641 } else { |
304 | 642 __ push(0); |
0 | 643 } |
644 | |
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645 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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646 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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647 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 648 __ push(rdx); // set constant pool cache |
649 __ push(r14); // set locals pointer | |
0 | 650 if (native_call) { |
304 | 651 __ push(0); // no bcp |
0 | 652 } else { |
304 | 653 __ push(r13); // set bcp |
0 | 654 } |
304 | 655 __ push(0); // reserve word for pointer to expression stack bottom |
656 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 657 } |
658 | |
659 // End of helpers | |
660 | |
304 | 661 // Various method entries |
662 //------------------------------------------------------------------------------------------------------------------------ | |
663 // | |
664 // | |
665 | |
666 // Call an accessor method (assuming it is resolved, otherwise drop | |
667 // into vanilla (slow path) entry | |
668 address InterpreterGenerator::generate_accessor_entry(void) { | |
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669 // rbx: Method* |
304 | 670 |
671 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
672 | |
673 address entry_point = __ pc(); | |
674 Label xreturn_path; | |
675 | |
676 // do fastpath for resolved accessor methods | |
677 if (UseFastAccessorMethods) { | |
678 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
679 // thereof; parameter size = 1 | |
680 // Note: We can only use this code if the getfield has been resolved | |
681 // and if we don't have a null-pointer exception => check for | |
682 // these conditions first and use slow path if necessary. | |
683 Label slow_path; | |
684 // If we need a safepoint check, generate full interpreter entry. | |
685 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
686 SafepointSynchronize::_not_synchronized); | |
687 | |
688 __ jcc(Assembler::notEqual, slow_path); | |
689 // rbx: method | |
690 __ movptr(rax, Address(rsp, wordSize)); | |
691 | |
692 // check if local 0 != NULL and read field | |
693 __ testptr(rax, rax); | |
694 __ jcc(Assembler::zero, slow_path); | |
695 | |
696 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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697 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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698 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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699 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
304 | 700 // Shift codes right to get the index on the right. |
701 // The bytecode fetched looks like <index><0xb4><0x2a> | |
702 __ shrl(rdx, 2 * BitsPerByte); | |
703 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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704 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
304 | 705 |
706 // rax: local 0 | |
707 // rbx: method | |
708 // rdx: constant pool cache index | |
709 // rdi: constant pool cache | |
710 | |
711 // check if getfield has been resolved and read constant pool cache entry | |
712 // check the validity of the cache entry by testing whether _indices field | |
713 // contains Bytecode::_getfield in b1 byte. | |
714 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
715 "adjust shift below"); | |
716 __ movl(rcx, | |
717 Address(rdi, | |
718 rdx, | |
719 Address::times_8, | |
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720 ConstantPoolCache::base_offset() + |
304 | 721 ConstantPoolCacheEntry::indices_offset())); |
722 __ shrl(rcx, 2 * BitsPerByte); | |
723 __ andl(rcx, 0xFF); | |
724 __ cmpl(rcx, Bytecodes::_getfield); | |
725 __ jcc(Assembler::notEqual, slow_path); | |
726 | |
727 // Note: constant pool entry is not valid before bytecode is resolved | |
728 __ movptr(rcx, | |
729 Address(rdi, | |
730 rdx, | |
731 Address::times_8, | |
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732 ConstantPoolCache::base_offset() + |
304 | 733 ConstantPoolCacheEntry::f2_offset())); |
734 // edx: flags | |
735 __ movl(rdx, | |
736 Address(rdi, | |
737 rdx, | |
738 Address::times_8, | |
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739 ConstantPoolCache::base_offset() + |
304 | 740 ConstantPoolCacheEntry::flags_offset())); |
741 | |
742 Label notObj, notInt, notByte, notShort; | |
743 const Address field_address(rax, rcx, Address::times_1); | |
744 | |
745 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
746 // because they are different sizes. | |
747 // Use the type from the constant pool cache | |
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748 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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749 // Make sure we don't need to mask edx after the above shift |
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750 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 751 |
752 __ cmpl(rdx, atos); | |
753 __ jcc(Assembler::notEqual, notObj); | |
754 // atos | |
755 __ load_heap_oop(rax, field_address); | |
756 __ jmp(xreturn_path); | |
757 | |
758 __ bind(notObj); | |
759 __ cmpl(rdx, itos); | |
760 __ jcc(Assembler::notEqual, notInt); | |
761 // itos | |
762 __ movl(rax, field_address); | |
763 __ jmp(xreturn_path); | |
764 | |
765 __ bind(notInt); | |
766 __ cmpl(rdx, btos); | |
767 __ jcc(Assembler::notEqual, notByte); | |
768 // btos | |
769 __ load_signed_byte(rax, field_address); | |
770 __ jmp(xreturn_path); | |
771 | |
772 __ bind(notByte); | |
773 __ cmpl(rdx, stos); | |
774 __ jcc(Assembler::notEqual, notShort); | |
775 // stos | |
622
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776 __ load_signed_short(rax, field_address); |
304 | 777 __ jmp(xreturn_path); |
778 | |
779 __ bind(notShort); | |
780 #ifdef ASSERT | |
781 Label okay; | |
782 __ cmpl(rdx, ctos); | |
783 __ jcc(Assembler::equal, okay); | |
784 __ stop("what type is this?"); | |
785 __ bind(okay); | |
786 #endif | |
787 // ctos | |
622
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788 __ load_unsigned_short(rax, field_address); |
304 | 789 |
790 __ bind(xreturn_path); | |
791 | |
792 // _ireturn/_areturn | |
793 __ pop(rdi); | |
794 __ mov(rsp, r13); | |
795 __ jmp(rdi); | |
796 __ ret(0); | |
797 | |
798 // generate a vanilla interpreter entry as the slow path | |
799 __ bind(slow_path); | |
800 (void) generate_normal_entry(false); | |
801 } else { | |
802 (void) generate_normal_entry(false); | |
803 } | |
804 | |
805 return entry_point; | |
806 } | |
807 | |
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808 // Method entry for java.lang.ref.Reference.get. |
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809 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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810 #if INCLUDE_ALL_GCS |
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811 // Code: _aload_0, _getfield, _areturn |
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812 // parameter size = 1 |
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813 // |
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814 // The code that gets generated by this routine is split into 2 parts: |
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815 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
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816 // 2. The slow path - which is an expansion of the regular method entry. |
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817 // |
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818 // Notes:- |
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819 // * In the G1 code we do not check whether we need to block for |
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820 // a safepoint. If G1 is enabled then we must execute the specialized |
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821 // code for Reference.get (except when the Reference object is null) |
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822 // so that we can log the value in the referent field with an SATB |
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823 // update buffer. |
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824 // If the code for the getfield template is modified so that the |
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825 // G1 pre-barrier code is executed when the current method is |
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826 // Reference.get() then going through the normal method entry |
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827 // will be fine. |
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828 // * The G1 code can, however, check the receiver object (the instance |
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829 // of java.lang.Reference) and jump to the slow path if null. If the |
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830 // Reference object is null then we obviously cannot fetch the referent |
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831 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
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832 // regular method entry code to generate the NPE. |
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833 // |
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834 // This code is based on generate_accessor_enty. |
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835 // |
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836 // rbx: Method* |
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837 |
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838 // r13: senderSP must preserve for slow path, set SP to it on fast path |
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839 |
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840 address entry = __ pc(); |
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841 |
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842 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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843 guarantee(referent_offset > 0, "referent offset not initialized"); |
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844 |
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845 if (UseG1GC) { |
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846 Label slow_path; |
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847 // rbx: method |
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848 |
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849 // Check if local 0 != NULL |
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850 // If the receiver is null then it is OK to jump to the slow path. |
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851 __ movptr(rax, Address(rsp, wordSize)); |
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852 |
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853 __ testptr(rax, rax); |
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854 __ jcc(Assembler::zero, slow_path); |
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855 |
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856 // rax: local 0 |
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857 // rbx: method (but can be used as scratch now) |
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858 // rdx: scratch |
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859 // rdi: scratch |
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860 |
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861 // Generate the G1 pre-barrier code to log the value of |
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862 // the referent field in an SATB buffer. |
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863 |
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864 // Load the value of the referent field. |
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865 const Address field_address(rax, referent_offset); |
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866 __ load_heap_oop(rax, field_address); |
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867 |
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868 // Generate the G1 pre-barrier code to log the value of |
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869 // the referent field in an SATB buffer. |
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870 __ g1_write_barrier_pre(noreg /* obj */, |
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871 rax /* pre_val */, |
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872 r15_thread /* thread */, |
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873 rbx /* tmp */, |
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874 true /* tosca_live */, |
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875 true /* expand_call */); |
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876 |
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877 // _areturn |
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878 __ pop(rdi); // get return address |
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879 __ mov(rsp, r13); // set sp to sender sp |
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880 __ jmp(rdi); |
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881 __ ret(0); |
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882 |
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883 // generate a vanilla interpreter entry as the slow path |
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884 __ bind(slow_path); |
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885 (void) generate_normal_entry(false); |
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886 |
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887 return entry; |
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888 } |
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889 #endif // INCLUDE_ALL_GCS |
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890 |
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891 // If G1 is not enabled then attempt to go through the accessor entry point |
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892 // Reference.get is an accessor |
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893 return generate_accessor_entry(); |
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894 } |
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895 |
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896 #ifdef GRAAL |
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897 |
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898 // Interpreter stub for calling a compiled method with 3 object arguments |
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899 address InterpreterGenerator::generate_execute_compiled_method_entry() { |
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900 address entry_point = __ pc(); |
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901 |
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902 // Pick up the return address |
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903 __ movptr(rax, Address(rsp, 0)); |
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904 |
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905 // Must preserve original SP for loading incoming arguments because |
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906 // we need to align the outgoing SP for compiled code. |
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907 __ movptr(r11, rsp); |
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908 |
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909 // Move first object argument from interpreter calling convention to compiled |
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910 // code calling convention. |
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911 __ movq(j_rarg0, Address(r11, Interpreter::stackElementSize*4)); |
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912 |
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913 // Move second object argument. |
10475
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914 __ movq(j_rarg1, Address(r11, Interpreter::stackElementSize*3)); |
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915 |
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916 // Move third object argument. |
10475
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917 __ movq(j_rarg2, Address(r11, Interpreter::stackElementSize*2)); |
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918 |
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919 // Load the raw pointer to the HotSpotInstalledCode object. |
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920 __ movq(j_rarg3, Address(r11, Interpreter::stackElementSize)); |
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921 |
10475
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922 // Load the nmethod pointer from the HotSpotInstalledCode object |
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923 __ movq(j_rarg3, Address(j_rarg3, sizeof(oopDesc))); |
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924 |
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925 // Check whether the nmethod was invalidated |
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926 __ testq(j_rarg3, j_rarg3); |
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927 Label invalid_nmethod; |
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928 __ jcc(Assembler::zero, invalid_nmethod); |
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929 |
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930 // Ensure compiled code always sees stack at proper alignment |
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931 __ andptr(rsp, -16); |
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932 |
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933 // push the return address and misalign the stack that youngest frame always sees |
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934 // as far as the placement of the call instruction |
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935 __ push(rax); |
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936 |
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937 // Perform a tail call to the verified entry point of the nmethod. |
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938 __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset())); |
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939 |
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940 __ bind(invalid_nmethod); |
10479
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941 |
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942 // pop return address, reset last_sp to NULL |
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943 __ empty_expression_stack(); |
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944 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
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945 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
10479
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946 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_InvalidInstalledCodeException)); |
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947 // the call_VM checks for exception, so we should never return here. |
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948 __ should_not_reach_here(); |
10475
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949 |
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950 return entry_point; |
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951 } |
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952 |
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953 #endif |
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954 |
0 | 955 // Interpreter stub for calling a native method. (asm interpreter) |
956 // This sets up a somewhat different looking stack for calling the | |
957 // native method than the typical interpreter frame setup. | |
958 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
959 // determine code generation flags | |
960 bool inc_counter = UseCompiler || CountCompiledCalls; | |
961 | |
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962 // rbx: Method* |
0 | 963 // r13: sender sp |
964 | |
965 address entry_point = __ pc(); | |
966 | |
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967 const Address constMethod (rbx, Method::const_offset()); |
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968 const Address access_flags (rbx, Method::access_flags_offset()); |
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969 const Address size_of_parameters(rcx, ConstMethod:: |
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970 size_of_parameters_offset()); |
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971 |
0 | 972 |
973 // get parameter size (always needed) | |
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974 __ movptr(rcx, constMethod); |
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975 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 976 |
977 // native calls don't need the stack size check since they have no | |
978 // expression stack and the arguments are already on the stack and | |
979 // we only add a handful of words to the stack | |
980 | |
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981 // rbx: Method* |
0 | 982 // rcx: size of parameters |
983 // r13: sender sp | |
304 | 984 __ pop(rax); // get return address |
0 | 985 |
986 // for natives the size of locals is zero | |
987 | |
988 // compute beginning of parameters (r14) | |
304 | 989 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 990 |
991 // add 2 zero-initialized slots for native calls | |
992 // initialize result_handler slot | |
304 | 993 __ push((int) NULL_WORD); |
0 | 994 // slot for oop temp |
995 // (static native method holder mirror/jni oop result) | |
304 | 996 __ push((int) NULL_WORD); |
0 | 997 |
998 // initialize fixed part of activation frame | |
999 generate_fixed_frame(true); | |
1000 | |
1001 // make sure method is native & not abstract | |
1002 #ifdef ASSERT | |
1003 __ movl(rax, access_flags); | |
1004 { | |
1005 Label L; | |
1006 __ testl(rax, JVM_ACC_NATIVE); | |
1007 __ jcc(Assembler::notZero, L); | |
1008 __ stop("tried to execute non-native method as native"); | |
1009 __ bind(L); | |
1010 } | |
1011 { | |
1012 Label L; | |
1013 __ testl(rax, JVM_ACC_ABSTRACT); | |
1014 __ jcc(Assembler::zero, L); | |
1015 __ stop("tried to execute abstract method in interpreter"); | |
1016 __ bind(L); | |
1017 } | |
1018 #endif | |
1019 | |
1020 // Since at this point in the method invocation the exception handler | |
1021 // would try to exit the monitor of synchronized methods which hasn't | |
1022 // been entered yet, we set the thread local variable | |
1023 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1024 // check this flag. | |
1025 | |
1026 const Address do_not_unlock_if_synchronized(r15_thread, | |
1027 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1028 __ movbool(do_not_unlock_if_synchronized, true); | |
1029 | |
1030 // increment invocation count & check for overflow | |
1031 Label invocation_counter_overflow; | |
1032 if (inc_counter) { | |
1033 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
1034 } | |
1035 | |
1036 Label continue_after_compile; | |
1037 __ bind(continue_after_compile); | |
1038 | |
1039 bang_stack_shadow_pages(true); | |
1040 | |
1041 // reset the _do_not_unlock_if_synchronized flag | |
1042 __ movbool(do_not_unlock_if_synchronized, false); | |
1043 | |
1044 // check for synchronized methods | |
1045 // Must happen AFTER invocation_counter check and stack overflow check, | |
1046 // so method is not locked if overflows. | |
1047 if (synchronized) { | |
1048 lock_method(); | |
1049 } else { | |
1050 // no synchronization necessary | |
1051 #ifdef ASSERT | |
1052 { | |
1053 Label L; | |
1054 __ movl(rax, access_flags); | |
1055 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1056 __ jcc(Assembler::zero, L); | |
1057 __ stop("method needs synchronization"); | |
1058 __ bind(L); | |
1059 } | |
1060 #endif | |
1061 } | |
1062 | |
1063 // start execution | |
1064 #ifdef ASSERT | |
1065 { | |
1066 Label L; | |
1067 const Address monitor_block_top(rbp, | |
1068 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1069 __ movptr(rax, monitor_block_top); |
1070 __ cmpptr(rax, rsp); | |
0 | 1071 __ jcc(Assembler::equal, L); |
1072 __ stop("broken stack frame setup in interpreter"); | |
1073 __ bind(L); | |
1074 } | |
1075 #endif | |
1076 | |
1077 // jvmti support | |
1078 __ notify_method_entry(); | |
1079 | |
1080 // work registers | |
1081 const Register method = rbx; | |
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1082 const Register t = r11; |
0 | 1083 |
1084 // allocate space for parameters | |
1085 __ get_method(method); | |
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1086 __ movptr(t, Address(method, Method::const_offset())); |
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1087 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
1506 | 1088 __ shll(t, Interpreter::logStackElementSize); |
0 | 1089 |
304 | 1090 __ subptr(rsp, t); |
1091 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
605 | 1092 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
0 | 1093 |
1094 // get signature handler | |
1095 { | |
1096 Label L; | |
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1097 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1098 __ testptr(t, t); |
0 | 1099 __ jcc(Assembler::notZero, L); |
1100 __ call_VM(noreg, | |
1101 CAST_FROM_FN_PTR(address, | |
1102 InterpreterRuntime::prepare_native_call), | |
1103 method); | |
1104 __ get_method(method); | |
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1105 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1106 __ bind(L); |
1107 } | |
1108 | |
1109 // call signature handler | |
1110 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
1111 "adjust this code"); | |
1112 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
1113 "adjust this code"); | |
1114 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
1115 "adjust this code"); | |
1116 | |
1117 // The generated handlers do not touch RBX (the method oop). | |
1118 // However, large signatures cannot be cached and are generated | |
1119 // each time here. The slow-path generator can do a GC on return, | |
1120 // so we must reload it after the call. | |
1121 __ call(t); | |
1122 __ get_method(method); // slow path can do a GC, reload RBX | |
1123 | |
1124 | |
1125 // result handler is in rax | |
1126 // set result handler | |
304 | 1127 __ movptr(Address(rbp, |
1128 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
1129 rax); | |
0 | 1130 |
1131 // pass mirror handle if static call | |
1132 { | |
1133 Label L; | |
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1134 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1135 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1136 __ testl(t, JVM_ACC_STATIC); |
1137 __ jcc(Assembler::zero, L); | |
1138 // get mirror | |
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1139 __ movptr(t, Address(method, Method::const_offset())); |
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1140 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1141 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1142 __ movptr(t, Address(t, mirror_offset)); |
0 | 1143 // copy mirror into activation frame |
304 | 1144 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
0 | 1145 t); |
1146 // pass handle to mirror | |
304 | 1147 __ lea(c_rarg1, |
1148 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
0 | 1149 __ bind(L); |
1150 } | |
1151 | |
1152 // get native function entry point | |
1153 { | |
1154 Label L; | |
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1155 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1156 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
1157 __ movptr(rscratch2, unsatisfied.addr()); | |
304 | 1158 __ cmpptr(rax, rscratch2); |
0 | 1159 __ jcc(Assembler::notEqual, L); |
1160 __ call_VM(noreg, | |
1161 CAST_FROM_FN_PTR(address, | |
1162 InterpreterRuntime::prepare_native_call), | |
1163 method); | |
1164 __ get_method(method); | |
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1165 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1166 __ bind(L); |
1167 } | |
1168 | |
1169 // pass JNIEnv | |
304 | 1170 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
0 | 1171 |
1172 // It is enough that the pc() points into the right code | |
1173 // segment. It does not have to be the correct return pc. | |
1174 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
1175 | |
1176 // change thread state | |
1177 #ifdef ASSERT | |
1178 { | |
1179 Label L; | |
1180 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
1181 __ cmpl(t, _thread_in_Java); | |
1182 __ jcc(Assembler::equal, L); | |
1183 __ stop("Wrong thread state in native stub"); | |
1184 __ bind(L); | |
1185 } | |
1186 #endif | |
1187 | |
1188 // Change state to native | |
1189 | |
1190 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1191 _thread_in_native); | |
1192 | |
1193 // Call the native method. | |
1194 __ call(rax); | |
1195 // result potentially in rax or xmm0 | |
1196 | |
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1197 // Verify or restore cpu control state after JNI call |
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1198 __ restore_cpu_control_state_after_jni(); |
0 | 1199 |
1200 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
1201 // in order to extract the result of a method call. If the order of these | |
1202 // pushes change or anything else is added to the stack then the code in | |
1203 // interpreter_frame_result must also change. | |
1204 | |
1205 __ push(dtos); | |
1206 __ push(ltos); | |
1207 | |
1208 // change thread state | |
1209 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1210 _thread_in_native_trans); | |
1211 | |
1212 if (os::is_MP()) { | |
1213 if (UseMembar) { | |
1214 // Force this write out before the read below | |
1215 __ membar(Assembler::Membar_mask_bits( | |
1216 Assembler::LoadLoad | Assembler::LoadStore | | |
1217 Assembler::StoreLoad | Assembler::StoreStore)); | |
1218 } else { | |
1219 // Write serialization page so VM thread can do a pseudo remote membar. | |
1220 // We use the current thread pointer to calculate a thread specific | |
1221 // offset to write to within the page. This minimizes bus traffic | |
1222 // due to cache line collision. | |
1223 __ serialize_memory(r15_thread, rscratch2); | |
1224 } | |
1225 } | |
1226 | |
1227 // check for safepoint operation in progress and/or pending suspend requests | |
1228 { | |
1229 Label Continue; | |
1230 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1231 SafepointSynchronize::_not_synchronized); | |
1232 | |
1233 Label L; | |
1234 __ jcc(Assembler::notEqual, L); | |
1235 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1236 __ jcc(Assembler::equal, Continue); | |
1237 __ bind(L); | |
1238 | |
1239 // Don't use call_VM as it will see a possible pending exception | |
1240 // and forward it and never return here preventing us from | |
1241 // clearing _last_native_pc down below. Also can't use | |
1242 // call_VM_leaf either as it will check to see if r13 & r14 are | |
1243 // preserved and correspond to the bcp/locals pointers. So we do a | |
1244 // runtime call by hand. | |
1245 // | |
304 | 1246 __ mov(c_rarg0, r15_thread); |
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1247 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1248 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1249 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1250 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
304 | 1251 __ mov(rsp, r12); // restore sp |
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1252 __ reinit_heapbase(); |
0 | 1253 __ bind(Continue); |
1254 } | |
1255 | |
1256 // change thread state | |
1257 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1258 | |
1259 // reset_last_Java_frame | |
1260 __ reset_last_Java_frame(true, true); | |
1261 | |
1262 // reset handle block | |
304 | 1263 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
1264 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
0 | 1265 |
1266 // If result is an oop unbox and store it in frame where gc will see it | |
1267 // and result handler will pick it up | |
1268 | |
1269 { | |
1270 Label no_oop, store_result; | |
1271 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
304 | 1272 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1273 __ jcc(Assembler::notEqual, no_oop); |
1274 // retrieve result | |
1275 __ pop(ltos); | |
304 | 1276 __ testptr(rax, rax); |
0 | 1277 __ jcc(Assembler::zero, store_result); |
304 | 1278 __ movptr(rax, Address(rax, 0)); |
0 | 1279 __ bind(store_result); |
304 | 1280 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
0 | 1281 // keep stack depth as expected by pushing oop which will eventually be discarde |
1282 __ push(ltos); | |
1283 __ bind(no_oop); | |
1284 } | |
1285 | |
1286 | |
1287 { | |
1288 Label no_reguard; | |
1289 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
1290 JavaThread::stack_guard_yellow_disabled); | |
1291 __ jcc(Assembler::notEqual, no_reguard); | |
1292 | |
304 | 1293 __ pusha(); // XXX only save smashed registers |
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1294 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1295 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1296 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1297 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1298 __ mov(rsp, r12); // restore sp |
1299 __ popa(); // XXX only restore smashed registers | |
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1300 __ reinit_heapbase(); |
0 | 1301 |
1302 __ bind(no_reguard); | |
1303 } | |
1304 | |
1305 | |
1306 // The method register is junk from after the thread_in_native transition | |
1307 // until here. Also can't call_VM until the bcp has been | |
1308 // restored. Need bcp for throwing exception below so get it now. | |
1309 __ get_method(method); | |
1310 | |
1311 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
1312 // r13 == code_base() | |
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1313 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1314 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
0 | 1315 // handle exceptions (exception handling will handle unlocking!) |
1316 { | |
1317 Label L; | |
304 | 1318 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 1319 __ jcc(Assembler::zero, L); |
1320 // Note: At some point we may want to unify this with the code | |
1321 // used in call_VM_base(); i.e., we should use the | |
1322 // StubRoutines::forward_exception code. For now this doesn't work | |
1323 // here because the rsp is not correctly set at this point. | |
1324 __ MacroAssembler::call_VM(noreg, | |
1325 CAST_FROM_FN_PTR(address, | |
1326 InterpreterRuntime::throw_pending_exception)); | |
1327 __ should_not_reach_here(); | |
1328 __ bind(L); | |
1329 } | |
1330 | |
1331 // do unlocking if necessary | |
1332 { | |
1333 Label L; | |
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1334 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1335 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1336 __ jcc(Assembler::zero, L); | |
1337 // the code below should be shared with interpreter macro | |
1338 // assembler implementation | |
1339 { | |
1340 Label unlock; | |
1341 // BasicObjectLock will be first in list, since this is a | |
1342 // synchronized method. However, need to check that the object | |
1343 // has not been unlocked by an explicit monitorexit bytecode. | |
1344 const Address monitor(rbp, | |
1345 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
1346 wordSize - sizeof(BasicObjectLock))); | |
1347 | |
1348 // monitor expect in c_rarg1 for slow unlock path | |
304 | 1349 __ lea(c_rarg1, monitor); // address of first monitor |
0 | 1350 |
304 | 1351 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
1352 __ testptr(t, t); | |
0 | 1353 __ jcc(Assembler::notZero, unlock); |
1354 | |
1355 // Entry already unlocked, need to throw exception | |
1356 __ MacroAssembler::call_VM(noreg, | |
1357 CAST_FROM_FN_PTR(address, | |
1358 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1359 __ should_not_reach_here(); | |
1360 | |
1361 __ bind(unlock); | |
1362 __ unlock_object(c_rarg1); | |
1363 } | |
1364 __ bind(L); | |
1365 } | |
1366 | |
1367 // jvmti support | |
1368 // Note: This must happen _after_ handling/throwing any exceptions since | |
1369 // the exception handler code notifies the runtime of method exits | |
1370 // too. If this happens before, method entry/exit notifications are | |
1371 // not properly paired (was bug - gri 11/22/99). | |
1372 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1373 | |
1374 // restore potential result in edx:eax, call result handler to | |
1375 // restore potential result in ST0 & handle result | |
1376 | |
1377 __ pop(ltos); | |
1378 __ pop(dtos); | |
1379 | |
304 | 1380 __ movptr(t, Address(rbp, |
1381 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
0 | 1382 __ call(t); |
1383 | |
1384 // remove activation | |
304 | 1385 __ movptr(t, Address(rbp, |
1386 frame::interpreter_frame_sender_sp_offset * | |
1387 wordSize)); // get sender sp | |
0 | 1388 __ leave(); // remove frame anchor |
304 | 1389 __ pop(rdi); // get return address |
1390 __ mov(rsp, t); // set sp to sender sp | |
0 | 1391 __ jmp(rdi); |
1392 | |
1393 if (inc_counter) { | |
1394 // Handle overflow of counter and compile method | |
1395 __ bind(invocation_counter_overflow); | |
1396 generate_counter_overflow(&continue_after_compile); | |
1397 } | |
1398 | |
1399 return entry_point; | |
1400 } | |
1401 | |
1402 // | |
1403 // Generic interpreted method entry to (asm) interpreter | |
1404 // | |
1405 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1406 // determine code generation flags | |
1407 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1408 | |
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1409 // ebx: Method* |
0 | 1410 // r13: sender sp |
1411 address entry_point = __ pc(); | |
1412 | |
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1413 const Address constMethod(rbx, Method::const_offset()); |
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1414 const Address access_flags(rbx, Method::access_flags_offset()); |
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1415 const Address size_of_parameters(rdx, |
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1416 ConstMethod::size_of_parameters_offset()); |
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1417 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1418 |
0 | 1419 |
1420 // get parameter size (always needed) | |
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1421 __ movptr(rdx, constMethod); |
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1422 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1423 |
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1424 // rbx: Method* |
0 | 1425 // rcx: size of parameters |
1426 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1427 | |
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1428 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1429 __ subl(rdx, rcx); // rdx = no. of additional locals |
1430 | |
1431 // YYY | |
1432 // __ incrementl(rdx); | |
1433 // __ andl(rdx, -2); | |
1434 | |
1435 // see if we've got enough room on the stack for locals plus overhead. | |
1436 generate_stack_overflow_check(); | |
1437 | |
1438 // get return address | |
304 | 1439 __ pop(rax); |
0 | 1440 |
1441 // compute beginning of parameters (r14) | |
304 | 1442 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1443 |
1444 // rdx - # of additional locals | |
1445 // allocate space for locals | |
1446 // explicitly initialize locals | |
1447 { | |
1448 Label exit, loop; | |
1449 __ testl(rdx, rdx); | |
1450 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1451 __ bind(loop); | |
304 | 1452 __ push((int) NULL_WORD); // initialize local variables |
0 | 1453 __ decrementl(rdx); // until everything initialized |
1454 __ jcc(Assembler::greater, loop); | |
1455 __ bind(exit); | |
1456 } | |
1457 | |
1458 // initialize fixed part of activation frame | |
1459 generate_fixed_frame(false); | |
1460 | |
1461 // make sure method is not native & not abstract | |
1462 #ifdef ASSERT | |
1463 __ movl(rax, access_flags); | |
1464 { | |
1465 Label L; | |
1466 __ testl(rax, JVM_ACC_NATIVE); | |
1467 __ jcc(Assembler::zero, L); | |
1468 __ stop("tried to execute native method as non-native"); | |
1469 __ bind(L); | |
1470 } | |
1471 { | |
1472 Label L; | |
1473 __ testl(rax, JVM_ACC_ABSTRACT); | |
1474 __ jcc(Assembler::zero, L); | |
1475 __ stop("tried to execute abstract method in interpreter"); | |
1476 __ bind(L); | |
1477 } | |
1478 #endif | |
1479 | |
1480 // Since at this point in the method invocation the exception | |
1481 // handler would try to exit the monitor of synchronized methods | |
1482 // which hasn't been entered yet, we set the thread local variable | |
1483 // _do_not_unlock_if_synchronized to true. The remove_activation | |
1484 // will check this flag. | |
1485 | |
1486 const Address do_not_unlock_if_synchronized(r15_thread, | |
1487 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1488 __ movbool(do_not_unlock_if_synchronized, true); | |
1489 | |
1490 // increment invocation count & check for overflow | |
1491 Label invocation_counter_overflow; | |
1492 Label profile_method; | |
1493 Label profile_method_continue; | |
1494 if (inc_counter) { | |
1495 generate_counter_incr(&invocation_counter_overflow, | |
1496 &profile_method, | |
1497 &profile_method_continue); | |
1498 if (ProfileInterpreter) { | |
1499 __ bind(profile_method_continue); | |
1500 } | |
1501 } | |
1502 | |
1503 Label continue_after_compile; | |
1504 __ bind(continue_after_compile); | |
1505 | |
1506 // check for synchronized interpreted methods | |
1507 bang_stack_shadow_pages(false); | |
1508 | |
1509 // reset the _do_not_unlock_if_synchronized flag | |
1510 __ movbool(do_not_unlock_if_synchronized, false); | |
1511 | |
1512 // check for synchronized methods | |
1513 // Must happen AFTER invocation_counter check and stack overflow check, | |
1514 // so method is not locked if overflows. | |
1515 if (synchronized) { | |
1516 // Allocate monitor and lock method | |
1517 lock_method(); | |
1518 } else { | |
1519 // no synchronization necessary | |
1520 #ifdef ASSERT | |
1521 { | |
1522 Label L; | |
1523 __ movl(rax, access_flags); | |
1524 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1525 __ jcc(Assembler::zero, L); | |
1526 __ stop("method needs synchronization"); | |
1527 __ bind(L); | |
1528 } | |
1529 #endif | |
1530 } | |
1531 | |
1532 // start execution | |
1533 #ifdef ASSERT | |
1534 { | |
1535 Label L; | |
1536 const Address monitor_block_top (rbp, | |
1537 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1538 __ movptr(rax, monitor_block_top); |
1539 __ cmpptr(rax, rsp); | |
0 | 1540 __ jcc(Assembler::equal, L); |
1541 __ stop("broken stack frame setup in interpreter"); | |
1542 __ bind(L); | |
1543 } | |
1544 #endif | |
1545 | |
1546 // jvmti support | |
1547 __ notify_method_entry(); | |
1548 | |
1549 __ dispatch_next(vtos); | |
1550 | |
1551 // invocation counter overflow | |
1552 if (inc_counter) { | |
1553 if (ProfileInterpreter) { | |
1554 // We have decided to profile this method in the interpreter | |
1555 __ bind(profile_method); | |
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1556 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1557 __ set_method_data_pointer_for_bcp(); |
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iveresov
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|
1558 __ get_method(rbx); |
0 | 1559 __ jmp(profile_method_continue); |
1560 } | |
1561 // Handle overflow of counter and compile method | |
1562 __ bind(invocation_counter_overflow); | |
1563 generate_counter_overflow(&continue_after_compile); | |
1564 } | |
1565 | |
1566 return entry_point; | |
1567 } | |
1568 | |
1569 // Entry points | |
1570 // | |
1571 // Here we generate the various kind of entries into the interpreter. | |
1572 // The two main entry type are generic bytecode methods and native | |
1573 // call method. These both come in synchronized and non-synchronized | |
1574 // versions but the frame layout they create is very similar. The | |
1575 // other method entry types are really just special purpose entries | |
1576 // that are really entry and interpretation all in one. These are for | |
1577 // trivial methods like accessor, empty, or special math methods. | |
1578 // | |
1579 // When control flow reaches any of the entry types for the interpreter | |
1580 // the following holds -> | |
1581 // | |
1582 // Arguments: | |
1583 // | |
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1584 // rbx: Method* |
0 | 1585 // |
1586 // Stack layout immediately at entry | |
1587 // | |
1588 // [ return address ] <--- rsp | |
1589 // [ parameter n ] | |
1590 // ... | |
1591 // [ parameter 1 ] | |
1592 // [ expression stack ] (caller's java expression stack) | |
1593 | |
1594 // Assuming that we don't go to one of the trivial specialized entries | |
1595 // the stack will look like below when we are ready to execute the | |
1596 // first bytecode (or call the native routine). The register usage | |
1597 // will be as the template based interpreter expects (see | |
1598 // interpreter_amd64.hpp). | |
1599 // | |
1600 // local variables follow incoming parameters immediately; i.e. | |
1601 // the return address is moved to the end of the locals). | |
1602 // | |
1603 // [ monitor entry ] <--- rsp | |
1604 // ... | |
1605 // [ monitor entry ] | |
1606 // [ expr. stack bottom ] | |
1607 // [ saved r13 ] | |
1608 // [ current r14 ] | |
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1609 // [ Method* ] |
0 | 1610 // [ saved ebp ] <--- rbp |
1611 // [ return address ] | |
1612 // [ local variable m ] | |
1613 // ... | |
1614 // [ local variable 1 ] | |
1615 // [ parameter n ] | |
1616 // ... | |
1617 // [ parameter 1 ] <--- r14 | |
1618 | |
1619 address AbstractInterpreterGenerator::generate_method_entry( | |
1620 AbstractInterpreter::MethodKind kind) { | |
1621 // determine code generation flags | |
1622 bool synchronized = false; | |
1623 address entry_point = NULL; | |
1624 | |
1625 switch (kind) { | |
1626 case Interpreter::zerolocals : break; | |
1627 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
9046
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1628 #ifdef GRAAL |
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Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1629 case Interpreter::execute_compiled_method: entry_point = ((InterpreterGenerator*)this)->generate_execute_compiled_method_entry(); break; |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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1630 #endif |
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1631 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; |
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1632 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; |
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1633 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
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1634 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; |
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1635 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; |
706
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6539464: Math.log() produces inconsistent results between successive runs.
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|
1636 |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1637 case Interpreter::java_lang_math_sin : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1638 case Interpreter::java_lang_math_cos : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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|
1639 case Interpreter::java_lang_math_tan : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1640 case Interpreter::java_lang_math_abs : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1641 case Interpreter::java_lang_math_log : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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1642 case Interpreter::java_lang_math_log10 : // fall thru |
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1643 case Interpreter::java_lang_math_sqrt : // fall thru |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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1644 case Interpreter::java_lang_math_pow : // fall thru |
6266
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1645 case Interpreter::java_lang_math_exp : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break; |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
1646 case Interpreter::java_lang_ref_reference_get |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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1647 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
6266
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|
1648 default: |
1d7922586cf6
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|
1649 fatal(err_msg("unexpected method kind: %d", kind)); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
1650 break; |
0 | 1651 } |
1652 | |
1653 if (entry_point) { | |
1654 return entry_point; | |
1655 } | |
1656 | |
1657 return ((InterpreterGenerator*) this)-> | |
1658 generate_normal_entry(synchronized); | |
1659 } | |
1660 | |
1174
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6849984: Value methods for platform dependent math functions constant fold incorrectly
never
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|
1661 // These should never be compiled since the interpreter will prefer |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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diff
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|
1662 // the compiled version to the intrinsic version. |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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1135
diff
changeset
|
1663 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1135
diff
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|
1664 switch (method_kind(m)) { |
ddb7834449d0
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|
1665 case Interpreter::java_lang_math_sin : // fall thru |
ddb7834449d0
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|
1666 case Interpreter::java_lang_math_cos : // fall thru |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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1667 case Interpreter::java_lang_math_tan : // fall thru |
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|
1668 case Interpreter::java_lang_math_abs : // fall thru |
ddb7834449d0
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|
1669 case Interpreter::java_lang_math_log : // fall thru |
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diff
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|
1670 case Interpreter::java_lang_math_log10 : // fall thru |
6084
6759698e3140
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4771
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|
1671 case Interpreter::java_lang_math_sqrt : // fall thru |
6759698e3140
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diff
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|
1672 case Interpreter::java_lang_math_pow : // fall thru |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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diff
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|
1673 case Interpreter::java_lang_math_exp : |
1174
ddb7834449d0
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diff
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|
1674 return false; |
ddb7834449d0
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never
parents:
1135
diff
changeset
|
1675 default: |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1135
diff
changeset
|
1676 return true; |
ddb7834449d0
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never
parents:
1135
diff
changeset
|
1677 } |
ddb7834449d0
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parents:
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diff
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|
1678 } |
ddb7834449d0
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parents:
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diff
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|
1679 |
0 | 1680 // How much stack a method activation needs in words. |
6725
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coleenp
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6266
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|
1681 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1682 const int entry_size = frame::interpreter_frame_monitor_size(); |
1683 | |
1684 // total overhead size: entry_size + (saved rbp thru expr stack | |
1685 // bottom). be sure to change this if you add/subtract anything | |
1686 // to/from the overhead area | |
1687 const int overhead_size = | |
1688 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
1689 | |
1690 const int stub_code = frame::entry_frame_after_call_words; | |
10393
603ca7e51354
8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
roland
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10141
diff
changeset
|
1691 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1692 Interpreter::stackElementWords; |
0 | 1693 return (overhead_size + method_stack + stub_code); |
1694 } | |
1695 | |
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|
1696 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1697 int tempcount, |
1698 int popframe_extra_args, | |
1699 int moncount, | |
3369
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7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
never
parents:
3252
diff
changeset
|
1700 int caller_actual_parameters, |
0 | 1701 int callee_param_count, |
1702 int callee_locals, | |
1703 frame* caller, | |
1704 frame* interpreter_frame, | |
8727
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roland
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8001
diff
changeset
|
1705 bool is_top_frame, |
0094485b46c7
8009761: Deoptimization on sparc doesn't set Llast_SP correctly in the interpreter frames it creates
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8001
diff
changeset
|
1706 bool is_bottom_frame) { |
0 | 1707 // Note: This calculation must exactly parallel the frame setup |
1708 // in AbstractInterpreterGenerator::generate_method_entry. | |
1709 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1710 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
1711 // right size, as determined by a previous call to this method. | |
1712 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1713 | |
1714 // fixed size of an interpreter frame: | |
1506 | 1715 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1716 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1717 Interpreter::stackElementWords; |
0 | 1718 |
1719 int overhead = frame::sender_sp_offset - | |
1720 frame::interpreter_frame_initial_sp_offset; | |
1721 // Our locals were accounted for by the caller (or last_frame_adjust | |
1722 // on the transistion) Since the callee parameters already account | |
1723 // for the callee's params we only need to account for the extra | |
1724 // locals. | |
1725 int size = overhead + | |
1506 | 1726 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
0 | 1727 moncount * frame::interpreter_frame_monitor_size() + |
1506 | 1728 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
0 | 1729 if (interpreter_frame != NULL) { |
1730 #ifdef ASSERT | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2245
diff
changeset
|
1731 if (!EnableInvokeDynamic) |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1108
diff
changeset
|
1732 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1108
diff
changeset
|
1733 // Probably, since deoptimization doesn't work yet. |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
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1108
diff
changeset
|
1734 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1735 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1736 #endif | |
1737 | |
1738 interpreter_frame->interpreter_frame_set_method(method); | |
1739 // NOTE the difference in using sender_sp and | |
1740 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
1741 // the original sp of the caller (the unextended_sp) and | |
1742 // sender_sp is fp+16 XXX | |
1743 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1744 | |
4042
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
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3451
diff
changeset
|
1745 #ifdef ASSERT |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
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3451
diff
changeset
|
1746 if (caller->is_interpreted_frame()) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3451
diff
changeset
|
1747 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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diff
changeset
|
1748 } |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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diff
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|
1749 #endif |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
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diff
changeset
|
1750 |
0 | 1751 interpreter_frame->interpreter_frame_set_locals(locals); |
1752 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1753 BasicObjectLock* monbot = montop - moncount; | |
1754 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1755 | |
1756 // Set last_sp | |
1757 intptr_t* esp = (intptr_t*) monbot - | |
1506 | 1758 tempcount*Interpreter::stackElementWords - |
0 | 1759 popframe_extra_args; |
1760 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
1761 | |
1762 // All frames but the initial (oldest) interpreter frame we fill in have | |
1763 // a value for sender_sp that allows walking the stack but isn't | |
1764 // truly correct. Correct the value here. | |
1765 if (extra_locals != 0 && | |
1766 interpreter_frame->sender_sp() == | |
1767 interpreter_frame->interpreter_frame_sender_sp()) { | |
1768 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
1769 extra_locals); | |
1770 } | |
1771 *interpreter_frame->interpreter_frame_cache_addr() = | |
1772 method->constants()->cache(); | |
1773 } | |
1774 return size; | |
1775 } | |
1776 | |
1777 //----------------------------------------------------------------------------- | |
1778 // Exceptions | |
1779 | |
1780 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1781 // Entry point in previous activation (i.e., if the caller was | |
1782 // interpreted) | |
1783 Interpreter::_rethrow_exception_entry = __ pc(); | |
1784 // Restore sp to interpreter_frame_last_sp even though we are going | |
1785 // to empty the expression stack for the exception processing. | |
304 | 1786 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 1787 // rax: exception |
1788 // rdx: return address/pc that threw exception | |
1789 __ restore_bcp(); // r13 points to call/send | |
1790 __ restore_locals(); | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
1791 __ reinit_heapbase(); // restore r12 as heapbase. |
0 | 1792 // Entry point for exceptions thrown within interpreter code |
1793 Interpreter::_throw_exception_entry = __ pc(); | |
1794 // expression stack is undefined here | |
1795 // rax: exception | |
1796 // r13: exception bcp | |
1797 __ verify_oop(rax); | |
304 | 1798 __ mov(c_rarg1, rax); |
0 | 1799 |
1800 // expression stack must be empty before entering the VM in case of | |
1801 // an exception | |
1802 __ empty_expression_stack(); | |
1803 // find exception handler address and preserve exception oop | |
1804 __ call_VM(rdx, | |
1805 CAST_FROM_FN_PTR(address, | |
1806 InterpreterRuntime::exception_handler_for_exception), | |
1807 c_rarg1); | |
1808 // rax: exception handler entry point | |
1809 // rdx: preserved exception oop | |
1810 // r13: bcp for exception handler | |
1811 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1812 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1813 | |
1814 // If the exception is not handled in the current frame the frame is | |
1815 // removed and the exception is rethrown (i.e. exception | |
1816 // continuation is _rethrow_exception). | |
1817 // | |
1818 // Note: At this point the bci is still the bxi for the instruction | |
1819 // which caused the exception and the expression stack is | |
1820 // empty. Thus, for any VM calls at this point, GC will find a legal | |
1821 // oop map (with empty expression stack). | |
1822 | |
1823 // In current activation | |
1824 // tos: exception | |
1825 // esi: exception bcp | |
1826 | |
1827 // | |
1828 // JVMTI PopFrame support | |
1829 // | |
1830 | |
1831 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1832 __ empty_expression_stack(); | |
1833 // Set the popframe_processing bit in pending_popframe_condition | |
1834 // indicating that we are currently handling popframe, so that | |
1835 // call_VMs that may happen later do not trigger new popframe | |
1836 // handling cycles. | |
1837 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
1838 __ orl(rdx, JavaThread::popframe_processing_bit); | |
1839 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
1840 | |
1841 { | |
1842 // Check to see whether we are returning to a deoptimized frame. | |
1843 // (The PopFrame call ensures that the caller of the popped frame is | |
1844 // either interpreted or compiled and deoptimizes it if compiled.) | |
1845 // In this case, we can't call dispatch_next() after the frame is | |
1846 // popped, but instead must save the incoming arguments and restore | |
1847 // them after deoptimization has occurred. | |
1848 // | |
1849 // Note that we don't compare the return PC against the | |
1850 // deoptimization blob's unpack entry because of the presence of | |
1851 // adapter frames in C2. | |
1852 Label caller_not_deoptimized; | |
304 | 1853 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1854 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1855 InterpreterRuntime::interpreter_contains), c_rarg1); | |
1856 __ testl(rax, rax); | |
1857 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1858 | |
1859 // Compute size of arguments for saving when returning to | |
1860 // deoptimized caller | |
1861 __ get_method(rax); | |
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fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
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1862 __ movptr(rax, Address(rax, Method::const_offset())); |
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1863 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
0 | 1864 size_of_parameters_offset()))); |
1506 | 1865 __ shll(rax, Interpreter::logStackElementSize); |
0 | 1866 __ restore_locals(); // XXX do we need this? |
304 | 1867 __ subptr(r14, rax); |
1868 __ addptr(r14, wordSize); | |
0 | 1869 // Save these arguments |
1870 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
1871 Deoptimization:: | |
1872 popframe_preserve_args), | |
1873 r15_thread, rax, r14); | |
1874 | |
1875 __ remove_activation(vtos, rdx, | |
1876 /* throw_monitor_exception */ false, | |
1877 /* install_monitor_exception */ false, | |
1878 /* notify_jvmdi */ false); | |
1879 | |
1880 // Inform deoptimization that it is responsible for restoring | |
1881 // these arguments | |
1882 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1883 JavaThread::popframe_force_deopt_reexecution_bit); | |
1884 | |
1885 // Continue in deoptimization handler | |
1886 __ jmp(rdx); | |
1887 | |
1888 __ bind(caller_not_deoptimized); | |
1889 } | |
1890 | |
1891 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
1892 /* throw_monitor_exception */ false, | |
1893 /* install_monitor_exception */ false, | |
1894 /* notify_jvmdi */ false); | |
1895 | |
1896 // Finish with popframe handling | |
1897 // A previous I2C followed by a deoptimization might have moved the | |
1898 // outgoing arguments further up the stack. PopFrame expects the | |
1899 // mutations to those outgoing arguments to be preserved and other | |
1900 // constraints basically require this frame to look exactly as | |
1901 // though it had previously invoked an interpreted activation with | |
1902 // no space between the top of the expression stack (current | |
1903 // last_sp) and the top of stack. Rather than force deopt to | |
1904 // maintain this kind of invariant all the time we call a small | |
1905 // fixup routine to move the mutated arguments onto the top of our | |
1906 // expression stack if necessary. | |
304 | 1907 __ mov(c_rarg1, rsp); |
1908 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
0 | 1909 // PC must point into interpreter here |
1910 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
1911 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
1912 __ reset_last_Java_frame(true, true); | |
1913 // Restore the last_sp and null it out | |
304 | 1914 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
1915 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
0 | 1916 |
1917 __ restore_bcp(); // XXX do we need this? | |
1918 __ restore_locals(); // XXX do we need this? | |
1919 // The method data pointer was incremented already during | |
1920 // call profiling. We have to restore the mdp for the current bcp. | |
1921 if (ProfileInterpreter) { | |
1922 __ set_method_data_pointer_for_bcp(); | |
1923 } | |
1924 | |
1925 // Clear the popframe condition flag | |
1926 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1927 JavaThread::popframe_inactive); | |
1928 | |
1929 __ dispatch_next(vtos); | |
1930 // end of PopFrame support | |
1931 | |
1932 Interpreter::_remove_activation_entry = __ pc(); | |
1933 | |
1934 // preserve exception over this code sequence | |
1935 __ pop_ptr(rax); | |
304 | 1936 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
0 | 1937 // remove the activation (without doing throws on illegalMonitorExceptions) |
1938 __ remove_activation(vtos, rdx, false, true, false); | |
1939 // restore exception | |
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1940 __ get_vm_result(rax, r15_thread); |
0 | 1941 |
1942 // In between activations - previous activation type unknown yet | |
1943 // compute continuation point - the continuation point expects the | |
1944 // following registers set up: | |
1945 // | |
1946 // rax: exception | |
1947 // rdx: return address/pc that threw exception | |
1948 // rsp: expression stack of caller | |
1949 // rbp: ebp of caller | |
304 | 1950 __ push(rax); // save exception |
1951 __ push(rdx); // save return address | |
0 | 1952 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1953 SharedRuntime::exception_handler_for_return_address), | |
1295 | 1954 r15_thread, rdx); |
304 | 1955 __ mov(rbx, rax); // save exception handler |
1956 __ pop(rdx); // restore return address | |
1957 __ pop(rax); // restore exception | |
0 | 1958 // Note that an "issuing PC" is actually the next PC after the call |
1959 __ jmp(rbx); // jump to exception | |
1960 // handler of caller | |
1961 } | |
1962 | |
1963 | |
1964 // | |
1965 // JVMTI ForceEarlyReturn support | |
1966 // | |
1967 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
1968 address entry = __ pc(); | |
1969 | |
1970 __ restore_bcp(); | |
1971 __ restore_locals(); | |
1972 __ empty_expression_stack(); | |
1973 __ load_earlyret_value(state); | |
1974 | |
304 | 1975 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 1976 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
1977 | |
1978 // Clear the earlyret state | |
1979 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
1980 | |
1981 __ remove_activation(state, rsi, | |
1982 false, /* throw_monitor_exception */ | |
1983 false, /* install_monitor_exception */ | |
1984 true); /* notify_jvmdi */ | |
1985 __ jmp(rsi); | |
1986 | |
1987 return entry; | |
1988 } // end of ForceEarlyReturn support | |
1989 | |
1990 | |
1991 //----------------------------------------------------------------------------- | |
1992 // Helper for vtos entry point generation | |
1993 | |
1994 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
1995 address& bep, | |
1996 address& cep, | |
1997 address& sep, | |
1998 address& aep, | |
1999 address& iep, | |
2000 address& lep, | |
2001 address& fep, | |
2002 address& dep, | |
2003 address& vep) { | |
2004 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
2005 Label L; | |
2006 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
2007 fep = __ pc(); __ push_f(); __ jmp(L); | |
2008 dep = __ pc(); __ push_d(); __ jmp(L); | |
2009 lep = __ pc(); __ push_l(); __ jmp(L); | |
2010 bep = cep = sep = | |
2011 iep = __ pc(); __ push_i(); | |
2012 vep = __ pc(); | |
2013 __ bind(L); | |
2014 generate_and_dispatch(t); | |
2015 } | |
2016 | |
2017 | |
2018 //----------------------------------------------------------------------------- | |
2019 // Generation of individual instructions | |
2020 | |
2021 // helpers for generate_and_dispatch | |
2022 | |
2023 | |
2024 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
2025 : TemplateInterpreterGenerator(code) { | |
2026 generate_all(); // down here so it can be "virtual" | |
2027 } | |
2028 | |
2029 //----------------------------------------------------------------------------- | |
2030 | |
2031 // Non-product code | |
2032 #ifndef PRODUCT | |
2033 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
2034 address entry = __ pc(); | |
2035 | |
2036 __ push(state); | |
304 | 2037 __ push(c_rarg0); |
2038 __ push(c_rarg1); | |
2039 __ push(c_rarg2); | |
2040 __ push(c_rarg3); | |
2041 __ mov(c_rarg2, rax); // Pass itos | |
0 | 2042 #ifdef _WIN64 |
2043 __ movflt(xmm3, xmm0); // Pass ftos | |
2044 #endif | |
2045 __ call_VM(noreg, | |
2046 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
2047 c_rarg1, c_rarg2, c_rarg3); | |
304 | 2048 __ pop(c_rarg3); |
2049 __ pop(c_rarg2); | |
2050 __ pop(c_rarg1); | |
2051 __ pop(c_rarg0); | |
0 | 2052 __ pop(state); |
2053 __ ret(0); // return from result handler | |
2054 | |
2055 return entry; | |
2056 } | |
2057 | |
2058 void TemplateInterpreterGenerator::count_bytecode() { | |
2059 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
2060 } | |
2061 | |
2062 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
2063 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
2064 } | |
2065 | |
2066 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2067 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
2068 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2069 __ orl(rbx, | |
2070 ((int) t->bytecode()) << | |
2071 BytecodePairHistogram::log2_number_of_codes); | |
2072 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2073 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
2074 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
2075 } | |
2076 | |
2077 | |
2078 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2079 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2080 // The run-time runtime saves the right registers, depending on | |
2081 // the tosca in-state for the given template. | |
2082 | |
2083 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2084 "entry must have been generated"); | |
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2085 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 2086 __ andptr(rsp, -16); // align stack as required by ABI |
0 | 2087 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
304 | 2088 __ mov(rsp, r12); // restore sp |
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2089 __ reinit_heapbase(); |
0 | 2090 } |
2091 | |
2092 | |
2093 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2094 Label L; | |
2095 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2096 StopInterpreterAt); | |
2097 __ jcc(Assembler::notEqual, L); | |
2098 __ int3(); | |
2099 __ bind(L); | |
2100 } | |
2101 #endif // !PRODUCT | |
304 | 2102 #endif // ! CC_INTERP |