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annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 10519:3891371b2a3b
Method renaming
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
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date | Mon, 24 Jun 2013 14:52:44 +0200 |
parents | 40b8c383bc31 |
children | 7344fa3e8833 |
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 GRAAL |
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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 // GRAAL |
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 GRAAL |
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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(rcx); |
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379 __ call_VM(noreg, CAST_FROM_FN_PTR(address, graal_initialize_time), rdx, false); |
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380 __ set_method_data_pointer_for_bcp(); |
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381 __ get_method(rbx); |
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382 __ pop(rcx); |
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383 |
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384 __ testl(rcx, InvocationCounter::count_mask_value); |
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385 __ jcc(Assembler::zero, not_zero); |
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386 __ stop("unexpected counter value in rcx"); |
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387 |
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388 __ bind(not_zero); |
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389 } |
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390 #endif // GRAAL |
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391 |
1783 | 392 // Update standard invocation counters |
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393 __ movl(rcx, invocation_counter); |
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394 __ incrementl(rcx, InvocationCounter::count_increment); |
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395 __ movl(invocation_counter, rcx); // save invocation count |
0 | 396 |
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397 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 398 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
0 | 399 |
1783 | 400 __ addl(rcx, rax); // add both counters |
0 | 401 |
1783 | 402 // profile_method is non-null only for interpreted method so |
403 // profile_method != NULL == !native_call | |
404 | |
405 if (ProfileInterpreter && profile_method != NULL) { | |
406 // Test to see if we should create a method data oop | |
407 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
408 __ jcc(Assembler::less, *profile_method_continue); | |
0 | 409 |
1783 | 410 // if no method data exists, go to profile_method |
411 __ test_method_data_pointer(rax, *profile_method); | |
412 } | |
413 | |
414 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
415 __ jcc(Assembler::aboveEqual, *overflow); | |
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416 __ bind(done); |
0 | 417 } |
418 } | |
419 | |
420 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
421 | |
422 // Asm interpreter on entry | |
423 // r14 - locals | |
424 // r13 - bcp | |
425 // rbx - method | |
426 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
427 // rbp - interpreter frame | |
428 | |
429 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
430 // Everything as it was on entry | |
431 // rdx is not restored. Doesn't appear to really be set. | |
432 | |
433 // InterpreterRuntime::frequency_counter_overflow takes two | |
434 // arguments, the first (thread) is passed by call_VM, the second | |
435 // indicates if the counter overflow occurs at a backwards branch | |
436 // (NULL bcp). We pass zero for it. The call returns the address | |
437 // of the verified entry point for the method or NULL if the | |
438 // compilation did not complete (either went background or bailed | |
439 // out). | |
440 __ movl(c_rarg1, 0); | |
441 __ call_VM(noreg, | |
442 CAST_FROM_FN_PTR(address, | |
443 InterpreterRuntime::frequency_counter_overflow), | |
444 c_rarg1); | |
445 | |
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446 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 447 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
448 // and jump to the interpreted entry. | |
449 __ jmp(*do_continue, relocInfo::none); | |
450 } | |
451 | |
452 // See if we've got enough room on the stack for locals plus overhead. | |
453 // The expression stack grows down incrementally, so the normal guard | |
454 // page mechanism will work for that. | |
455 // | |
456 // NOTE: Since the additional locals are also always pushed (wasn't | |
457 // obvious in generate_method_entry) so the guard should work for them | |
458 // too. | |
459 // | |
460 // Args: | |
461 // rdx: number of additional locals this frame needs (what we must check) | |
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462 // rbx: Method* |
0 | 463 // |
464 // Kills: | |
465 // rax | |
466 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
467 | |
468 // monitor entry size: see picture of stack set | |
469 // (generate_method_entry) and frame_amd64.hpp | |
470 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
471 | |
472 // total overhead size: entry_size + (saved rbp through expr stack | |
473 // bottom). be sure to change this if you add/subtract anything | |
474 // to/from the overhead area | |
475 const int overhead_size = | |
476 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
477 | |
478 const int page_size = os::vm_page_size(); | |
479 | |
480 Label after_frame_check; | |
481 | |
482 // see if the frame is greater than one page in size. If so, | |
483 // then we need to verify there is enough stack space remaining | |
484 // for the additional locals. | |
1506 | 485 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
0 | 486 __ jcc(Assembler::belowEqual, after_frame_check); |
487 | |
488 // compute rsp as if this were going to be the last frame on | |
489 // the stack before the red zone | |
490 | |
491 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
492 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
493 | |
494 // locals + overhead, in bytes | |
304 | 495 __ mov(rax, rdx); |
1506 | 496 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
304 | 497 __ addptr(rax, overhead_size); |
0 | 498 |
499 #ifdef ASSERT | |
500 Label stack_base_okay, stack_size_okay; | |
501 // verify that thread stack base is non-zero | |
304 | 502 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 503 __ jcc(Assembler::notEqual, stack_base_okay); |
504 __ stop("stack base is zero"); | |
505 __ bind(stack_base_okay); | |
506 // verify that thread stack size is non-zero | |
304 | 507 __ cmpptr(stack_size, 0); |
0 | 508 __ jcc(Assembler::notEqual, stack_size_okay); |
509 __ stop("stack size is zero"); | |
510 __ bind(stack_size_okay); | |
511 #endif | |
512 | |
513 // Add stack base to locals and subtract stack size | |
304 | 514 __ addptr(rax, stack_base); |
515 __ subptr(rax, stack_size); | |
0 | 516 |
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517 // Use the maximum number of pages we might bang. |
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518 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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519 (StackRedPages+StackYellowPages); |
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520 |
0 | 521 // add in the red and yellow zone sizes |
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522 __ addptr(rax, max_pages * page_size); |
0 | 523 |
524 // check against the current stack bottom | |
304 | 525 __ cmpptr(rsp, rax); |
0 | 526 __ jcc(Assembler::above, after_frame_check); |
527 | |
4743 | 528 // Restore sender's sp as SP. This is necessary if the sender's |
529 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
530 // and safer anyway in case of JSR292 adaptations. | |
531 | |
532 __ pop(rax); // return address must be moved if SP is changed | |
533 __ mov(rsp, r13); | |
534 __ push(rax); | |
535 | |
536 // Note: the restored frame is not necessarily interpreted. | |
537 // Use the shared runtime version of the StackOverflowError. | |
538 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
539 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 540 |
541 // all done with frame size check | |
542 __ bind(after_frame_check); | |
543 } | |
544 | |
545 // Allocate monitor and lock method (asm interpreter) | |
546 // | |
547 // Args: | |
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548 // rbx: Method* |
0 | 549 // r14: locals |
550 // | |
551 // Kills: | |
552 // rax | |
553 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
554 // rscratch1, rscratch2 (scratch regs) | |
555 void InterpreterGenerator::lock_method(void) { | |
556 // synchronize method | |
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557 const Address access_flags(rbx, Method::access_flags_offset()); |
0 | 558 const Address monitor_block_top( |
559 rbp, | |
560 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
561 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
562 | |
563 #ifdef ASSERT | |
564 { | |
565 Label L; | |
566 __ movl(rax, access_flags); | |
567 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
568 __ jcc(Assembler::notZero, L); | |
569 __ stop("method doesn't need synchronization"); | |
570 __ bind(L); | |
571 } | |
572 #endif // ASSERT | |
573 | |
574 // get synchronization object | |
575 { | |
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576 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 577 Label done; |
578 __ movl(rax, access_flags); | |
579 __ testl(rax, JVM_ACC_STATIC); | |
580 // get receiver (assume this is frequent case) | |
304 | 581 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
0 | 582 __ jcc(Assembler::zero, done); |
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583 __ movptr(rax, Address(rbx, Method::const_offset())); |
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584 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
304 | 585 __ movptr(rax, Address(rax, |
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586 ConstantPool::pool_holder_offset_in_bytes())); |
304 | 587 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 588 |
589 #ifdef ASSERT | |
590 { | |
591 Label L; | |
304 | 592 __ testptr(rax, rax); |
0 | 593 __ jcc(Assembler::notZero, L); |
594 __ stop("synchronization object is NULL"); | |
595 __ bind(L); | |
596 } | |
597 #endif // ASSERT | |
598 | |
599 __ bind(done); | |
600 } | |
601 | |
602 // add space for monitor & lock | |
304 | 603 __ subptr(rsp, entry_size); // add space for a monitor entry |
604 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
0 | 605 // store object |
304 | 606 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
607 __ movptr(c_rarg1, rsp); // object address | |
0 | 608 __ lock_object(c_rarg1); |
609 } | |
610 | |
611 // Generate a fixed interpreter frame. This is identical setup for | |
612 // interpreted methods and for native methods hence the shared code. | |
613 // | |
614 // Args: | |
615 // rax: return address | |
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616 // rbx: Method* |
0 | 617 // r14: pointer to locals |
618 // r13: sender sp | |
619 // rdx: cp cache | |
620 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
621 // initialize fixed part of activation frame | |
304 | 622 __ push(rax); // save return address |
0 | 623 __ enter(); // save old & set new rbp |
304 | 624 __ push(r13); // set sender sp |
625 __ push((int)NULL_WORD); // leave last_sp as null | |
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626 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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627 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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628 __ push(rbx); // save Method* |
0 | 629 if (ProfileInterpreter) { |
630 Label method_data_continue; | |
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631 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 632 __ testptr(rdx, rdx); |
0 | 633 __ jcc(Assembler::zero, method_data_continue); |
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634 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 635 __ bind(method_data_continue); |
304 | 636 __ push(rdx); // set the mdp (method data pointer) |
0 | 637 } else { |
304 | 638 __ push(0); |
0 | 639 } |
640 | |
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641 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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642 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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643 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 644 __ push(rdx); // set constant pool cache |
645 __ push(r14); // set locals pointer | |
0 | 646 if (native_call) { |
304 | 647 __ push(0); // no bcp |
0 | 648 } else { |
304 | 649 __ push(r13); // set bcp |
0 | 650 } |
304 | 651 __ push(0); // reserve word for pointer to expression stack bottom |
652 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 653 } |
654 | |
655 // End of helpers | |
656 | |
304 | 657 // Various method entries |
658 //------------------------------------------------------------------------------------------------------------------------ | |
659 // | |
660 // | |
661 | |
662 // Call an accessor method (assuming it is resolved, otherwise drop | |
663 // into vanilla (slow path) entry | |
664 address InterpreterGenerator::generate_accessor_entry(void) { | |
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665 // rbx: Method* |
304 | 666 |
667 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
668 | |
669 address entry_point = __ pc(); | |
670 Label xreturn_path; | |
671 | |
672 // do fastpath for resolved accessor methods | |
673 if (UseFastAccessorMethods) { | |
674 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
675 // thereof; parameter size = 1 | |
676 // Note: We can only use this code if the getfield has been resolved | |
677 // and if we don't have a null-pointer exception => check for | |
678 // these conditions first and use slow path if necessary. | |
679 Label slow_path; | |
680 // If we need a safepoint check, generate full interpreter entry. | |
681 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
682 SafepointSynchronize::_not_synchronized); | |
683 | |
684 __ jcc(Assembler::notEqual, slow_path); | |
685 // rbx: method | |
686 __ movptr(rax, Address(rsp, wordSize)); | |
687 | |
688 // check if local 0 != NULL and read field | |
689 __ testptr(rax, rax); | |
690 __ jcc(Assembler::zero, slow_path); | |
691 | |
692 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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693 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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694 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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695 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
304 | 696 // Shift codes right to get the index on the right. |
697 // The bytecode fetched looks like <index><0xb4><0x2a> | |
698 __ shrl(rdx, 2 * BitsPerByte); | |
699 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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700 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
304 | 701 |
702 // rax: local 0 | |
703 // rbx: method | |
704 // rdx: constant pool cache index | |
705 // rdi: constant pool cache | |
706 | |
707 // check if getfield has been resolved and read constant pool cache entry | |
708 // check the validity of the cache entry by testing whether _indices field | |
709 // contains Bytecode::_getfield in b1 byte. | |
710 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
711 "adjust shift below"); | |
712 __ movl(rcx, | |
713 Address(rdi, | |
714 rdx, | |
715 Address::times_8, | |
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716 ConstantPoolCache::base_offset() + |
304 | 717 ConstantPoolCacheEntry::indices_offset())); |
718 __ shrl(rcx, 2 * BitsPerByte); | |
719 __ andl(rcx, 0xFF); | |
720 __ cmpl(rcx, Bytecodes::_getfield); | |
721 __ jcc(Assembler::notEqual, slow_path); | |
722 | |
723 // Note: constant pool entry is not valid before bytecode is resolved | |
724 __ movptr(rcx, | |
725 Address(rdi, | |
726 rdx, | |
727 Address::times_8, | |
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728 ConstantPoolCache::base_offset() + |
304 | 729 ConstantPoolCacheEntry::f2_offset())); |
730 // edx: flags | |
731 __ movl(rdx, | |
732 Address(rdi, | |
733 rdx, | |
734 Address::times_8, | |
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735 ConstantPoolCache::base_offset() + |
304 | 736 ConstantPoolCacheEntry::flags_offset())); |
737 | |
738 Label notObj, notInt, notByte, notShort; | |
739 const Address field_address(rax, rcx, Address::times_1); | |
740 | |
741 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
742 // because they are different sizes. | |
743 // Use the type from the constant pool cache | |
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744 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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745 // Make sure we don't need to mask edx after the above shift |
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746 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 747 |
748 __ cmpl(rdx, atos); | |
749 __ jcc(Assembler::notEqual, notObj); | |
750 // atos | |
751 __ load_heap_oop(rax, field_address); | |
752 __ jmp(xreturn_path); | |
753 | |
754 __ bind(notObj); | |
755 __ cmpl(rdx, itos); | |
756 __ jcc(Assembler::notEqual, notInt); | |
757 // itos | |
758 __ movl(rax, field_address); | |
759 __ jmp(xreturn_path); | |
760 | |
761 __ bind(notInt); | |
762 __ cmpl(rdx, btos); | |
763 __ jcc(Assembler::notEqual, notByte); | |
764 // btos | |
765 __ load_signed_byte(rax, field_address); | |
766 __ jmp(xreturn_path); | |
767 | |
768 __ bind(notByte); | |
769 __ cmpl(rdx, stos); | |
770 __ jcc(Assembler::notEqual, notShort); | |
771 // stos | |
622
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772 __ load_signed_short(rax, field_address); |
304 | 773 __ jmp(xreturn_path); |
774 | |
775 __ bind(notShort); | |
776 #ifdef ASSERT | |
777 Label okay; | |
778 __ cmpl(rdx, ctos); | |
779 __ jcc(Assembler::equal, okay); | |
780 __ stop("what type is this?"); | |
781 __ bind(okay); | |
782 #endif | |
783 // ctos | |
622
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784 __ load_unsigned_short(rax, field_address); |
304 | 785 |
786 __ bind(xreturn_path); | |
787 | |
788 // _ireturn/_areturn | |
789 __ pop(rdi); | |
790 __ mov(rsp, r13); | |
791 __ jmp(rdi); | |
792 __ ret(0); | |
793 | |
794 // generate a vanilla interpreter entry as the slow path | |
795 __ bind(slow_path); | |
796 (void) generate_normal_entry(false); | |
797 } else { | |
798 (void) generate_normal_entry(false); | |
799 } | |
800 | |
801 return entry_point; | |
802 } | |
803 | |
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804 // Method entry for java.lang.ref.Reference.get. |
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805 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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806 #if INCLUDE_ALL_GCS |
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807 // Code: _aload_0, _getfield, _areturn |
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808 // parameter size = 1 |
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809 // |
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810 // The code that gets generated by this routine is split into 2 parts: |
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811 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
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812 // 2. The slow path - which is an expansion of the regular method entry. |
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813 // |
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814 // Notes:- |
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815 // * In the G1 code we do not check whether we need to block for |
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816 // a safepoint. If G1 is enabled then we must execute the specialized |
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817 // code for Reference.get (except when the Reference object is null) |
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818 // so that we can log the value in the referent field with an SATB |
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819 // update buffer. |
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820 // If the code for the getfield template is modified so that the |
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821 // G1 pre-barrier code is executed when the current method is |
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822 // Reference.get() then going through the normal method entry |
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823 // will be fine. |
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824 // * The G1 code can, however, check the receiver object (the instance |
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825 // of java.lang.Reference) and jump to the slow path if null. If the |
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826 // Reference object is null then we obviously cannot fetch the referent |
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827 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
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828 // regular method entry code to generate the NPE. |
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829 // |
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830 // This code is based on generate_accessor_enty. |
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831 // |
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832 // rbx: Method* |
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833 |
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834 // r13: senderSP must preserve for slow path, set SP to it on fast path |
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835 |
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836 address entry = __ pc(); |
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837 |
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838 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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839 guarantee(referent_offset > 0, "referent offset not initialized"); |
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840 |
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841 if (UseG1GC) { |
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842 Label slow_path; |
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843 // rbx: method |
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844 |
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845 // Check if local 0 != NULL |
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846 // If the receiver is null then it is OK to jump to the slow path. |
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847 __ movptr(rax, Address(rsp, wordSize)); |
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848 |
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849 __ testptr(rax, rax); |
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850 __ jcc(Assembler::zero, slow_path); |
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851 |
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852 // rax: local 0 |
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853 // rbx: method (but can be used as scratch now) |
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854 // rdx: scratch |
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855 // rdi: scratch |
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856 |
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857 // Generate the G1 pre-barrier code to log the value of |
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858 // the referent field in an SATB buffer. |
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859 |
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860 // Load the value of the referent field. |
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861 const Address field_address(rax, referent_offset); |
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862 __ load_heap_oop(rax, field_address); |
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863 |
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864 // Generate the G1 pre-barrier code to log the value of |
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865 // the referent field in an SATB buffer. |
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866 __ g1_write_barrier_pre(noreg /* obj */, |
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867 rax /* pre_val */, |
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868 r15_thread /* thread */, |
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869 rbx /* tmp */, |
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870 true /* tosca_live */, |
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871 true /* expand_call */); |
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872 |
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873 // _areturn |
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874 __ pop(rdi); // get return address |
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875 __ mov(rsp, r13); // set sp to sender sp |
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876 __ jmp(rdi); |
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877 __ ret(0); |
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878 |
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879 // generate a vanilla interpreter entry as the slow path |
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880 __ bind(slow_path); |
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881 (void) generate_normal_entry(false); |
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882 |
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883 return entry; |
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884 } |
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885 #endif // INCLUDE_ALL_GCS |
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886 |
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887 // If G1 is not enabled then attempt to go through the accessor entry point |
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888 // Reference.get is an accessor |
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889 return generate_accessor_entry(); |
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890 } |
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891 |
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892 #ifdef GRAAL |
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893 |
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894 // Interpreter stub for calling a compiled method with 3 object arguments |
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895 address InterpreterGenerator::generate_execute_compiled_method_entry() { |
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896 address entry_point = __ pc(); |
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897 |
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898 // Pick up the return address |
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899 __ movptr(rax, Address(rsp, 0)); |
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900 |
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901 // Must preserve original SP for loading incoming arguments because |
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902 // we need to align the outgoing SP for compiled code. |
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903 __ movptr(r11, rsp); |
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904 |
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905 // Ensure compiled code always sees stack at proper alignment |
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906 __ andptr(rsp, -16); |
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907 |
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908 // push the return address and misalign the stack that youngest frame always sees |
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909 // as far as the placement of the call instruction |
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910 __ push(rax); |
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911 |
9046
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912 // Move first object argument from interpreter calling convention to compiled |
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913 // code calling convention. |
10475
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914 __ movq(j_rarg0, Address(r11, Interpreter::stackElementSize*4)); |
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915 |
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916 // Move second object argument. |
10475
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917 __ movq(j_rarg1, Address(r11, Interpreter::stackElementSize*3)); |
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918 |
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919 // Move third object argument. |
10475
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920 __ movq(j_rarg2, Address(r11, Interpreter::stackElementSize*2)); |
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921 |
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922 // Load the raw pointer to the HotSpotInstalledCode object. |
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923 __ movq(j_rarg3, Address(r11, Interpreter::stackElementSize)); |
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924 |
10475
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925 // Load the nmethod pointer from the HotSpotInstalledCode object |
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926 __ movq(j_rarg3, Address(j_rarg3, sizeof(oopDesc))); |
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927 |
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928 // Check whether the nmethod was invalidated |
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929 __ testq(j_rarg3, j_rarg3); |
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930 Label invalid_nmethod; |
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931 __ jcc(Assembler::zero, invalid_nmethod); |
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932 |
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933 // Perform a tail call to the verified entry point of the nmethod. |
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934 __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset())); |
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935 |
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936 __ bind(invalid_nmethod); |
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937 |
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938 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_InvalidInstalledCodeException)); |
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939 // the call_VM checks for exception, so we should never return here. |
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940 __ should_not_reach_here(); |
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941 |
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942 return entry_point; |
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943 } |
3249
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944 |
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945 #endif |
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946 |
0 | 947 // Interpreter stub for calling a native method. (asm interpreter) |
948 // This sets up a somewhat different looking stack for calling the | |
949 // native method than the typical interpreter frame setup. | |
950 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
951 // determine code generation flags | |
952 bool inc_counter = UseCompiler || CountCompiledCalls; | |
953 | |
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954 // rbx: Method* |
0 | 955 // r13: sender sp |
956 | |
957 address entry_point = __ pc(); | |
958 | |
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959 const Address constMethod (rbx, Method::const_offset()); |
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960 const Address access_flags (rbx, Method::access_flags_offset()); |
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961 const Address size_of_parameters(rcx, ConstMethod:: |
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962 size_of_parameters_offset()); |
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963 |
0 | 964 |
965 // get parameter size (always needed) | |
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966 __ movptr(rcx, constMethod); |
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967 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 968 |
969 // native calls don't need the stack size check since they have no | |
970 // expression stack and the arguments are already on the stack and | |
971 // we only add a handful of words to the stack | |
972 | |
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973 // rbx: Method* |
0 | 974 // rcx: size of parameters |
975 // r13: sender sp | |
304 | 976 __ pop(rax); // get return address |
0 | 977 |
978 // for natives the size of locals is zero | |
979 | |
980 // compute beginning of parameters (r14) | |
304 | 981 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 982 |
983 // add 2 zero-initialized slots for native calls | |
984 // initialize result_handler slot | |
304 | 985 __ push((int) NULL_WORD); |
0 | 986 // slot for oop temp |
987 // (static native method holder mirror/jni oop result) | |
304 | 988 __ push((int) NULL_WORD); |
0 | 989 |
990 // initialize fixed part of activation frame | |
991 generate_fixed_frame(true); | |
992 | |
993 // make sure method is native & not abstract | |
994 #ifdef ASSERT | |
995 __ movl(rax, access_flags); | |
996 { | |
997 Label L; | |
998 __ testl(rax, JVM_ACC_NATIVE); | |
999 __ jcc(Assembler::notZero, L); | |
1000 __ stop("tried to execute non-native method as native"); | |
1001 __ bind(L); | |
1002 } | |
1003 { | |
1004 Label L; | |
1005 __ testl(rax, JVM_ACC_ABSTRACT); | |
1006 __ jcc(Assembler::zero, L); | |
1007 __ stop("tried to execute abstract method in interpreter"); | |
1008 __ bind(L); | |
1009 } | |
1010 #endif | |
1011 | |
1012 // Since at this point in the method invocation the exception handler | |
1013 // would try to exit the monitor of synchronized methods which hasn't | |
1014 // been entered yet, we set the thread local variable | |
1015 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1016 // check this flag. | |
1017 | |
1018 const Address do_not_unlock_if_synchronized(r15_thread, | |
1019 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1020 __ movbool(do_not_unlock_if_synchronized, true); | |
1021 | |
1022 // increment invocation count & check for overflow | |
1023 Label invocation_counter_overflow; | |
1024 if (inc_counter) { | |
1025 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
1026 } | |
1027 | |
1028 Label continue_after_compile; | |
1029 __ bind(continue_after_compile); | |
1030 | |
1031 bang_stack_shadow_pages(true); | |
1032 | |
1033 // reset the _do_not_unlock_if_synchronized flag | |
1034 __ movbool(do_not_unlock_if_synchronized, false); | |
1035 | |
1036 // check for synchronized methods | |
1037 // Must happen AFTER invocation_counter check and stack overflow check, | |
1038 // so method is not locked if overflows. | |
1039 if (synchronized) { | |
1040 lock_method(); | |
1041 } else { | |
1042 // no synchronization necessary | |
1043 #ifdef ASSERT | |
1044 { | |
1045 Label L; | |
1046 __ movl(rax, access_flags); | |
1047 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1048 __ jcc(Assembler::zero, L); | |
1049 __ stop("method needs synchronization"); | |
1050 __ bind(L); | |
1051 } | |
1052 #endif | |
1053 } | |
1054 | |
1055 // start execution | |
1056 #ifdef ASSERT | |
1057 { | |
1058 Label L; | |
1059 const Address monitor_block_top(rbp, | |
1060 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1061 __ movptr(rax, monitor_block_top); |
1062 __ cmpptr(rax, rsp); | |
0 | 1063 __ jcc(Assembler::equal, L); |
1064 __ stop("broken stack frame setup in interpreter"); | |
1065 __ bind(L); | |
1066 } | |
1067 #endif | |
1068 | |
1069 // jvmti support | |
1070 __ notify_method_entry(); | |
1071 | |
1072 // work registers | |
1073 const Register method = rbx; | |
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1074 const Register t = r11; |
0 | 1075 |
1076 // allocate space for parameters | |
1077 __ get_method(method); | |
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1078 __ movptr(t, Address(method, Method::const_offset())); |
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1079 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
1506 | 1080 __ shll(t, Interpreter::logStackElementSize); |
0 | 1081 |
304 | 1082 __ subptr(rsp, t); |
1083 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
605 | 1084 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
0 | 1085 |
1086 // get signature handler | |
1087 { | |
1088 Label L; | |
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1089 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1090 __ testptr(t, t); |
0 | 1091 __ jcc(Assembler::notZero, L); |
1092 __ call_VM(noreg, | |
1093 CAST_FROM_FN_PTR(address, | |
1094 InterpreterRuntime::prepare_native_call), | |
1095 method); | |
1096 __ get_method(method); | |
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1097 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1098 __ bind(L); |
1099 } | |
1100 | |
1101 // call signature handler | |
1102 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
1103 "adjust this code"); | |
1104 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
1105 "adjust this code"); | |
1106 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
1107 "adjust this code"); | |
1108 | |
1109 // The generated handlers do not touch RBX (the method oop). | |
1110 // However, large signatures cannot be cached and are generated | |
1111 // each time here. The slow-path generator can do a GC on return, | |
1112 // so we must reload it after the call. | |
1113 __ call(t); | |
1114 __ get_method(method); // slow path can do a GC, reload RBX | |
1115 | |
1116 | |
1117 // result handler is in rax | |
1118 // set result handler | |
304 | 1119 __ movptr(Address(rbp, |
1120 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
1121 rax); | |
0 | 1122 |
1123 // pass mirror handle if static call | |
1124 { | |
1125 Label L; | |
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1126 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1127 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1128 __ testl(t, JVM_ACC_STATIC); |
1129 __ jcc(Assembler::zero, L); | |
1130 // get mirror | |
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1131 __ movptr(t, Address(method, Method::const_offset())); |
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1132 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1133 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1134 __ movptr(t, Address(t, mirror_offset)); |
0 | 1135 // copy mirror into activation frame |
304 | 1136 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
0 | 1137 t); |
1138 // pass handle to mirror | |
304 | 1139 __ lea(c_rarg1, |
1140 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
0 | 1141 __ bind(L); |
1142 } | |
1143 | |
1144 // get native function entry point | |
1145 { | |
1146 Label L; | |
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1147 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1148 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
1149 __ movptr(rscratch2, unsatisfied.addr()); | |
304 | 1150 __ cmpptr(rax, rscratch2); |
0 | 1151 __ jcc(Assembler::notEqual, L); |
1152 __ call_VM(noreg, | |
1153 CAST_FROM_FN_PTR(address, | |
1154 InterpreterRuntime::prepare_native_call), | |
1155 method); | |
1156 __ get_method(method); | |
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1157 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1158 __ bind(L); |
1159 } | |
1160 | |
1161 // pass JNIEnv | |
304 | 1162 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
0 | 1163 |
1164 // It is enough that the pc() points into the right code | |
1165 // segment. It does not have to be the correct return pc. | |
1166 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
1167 | |
1168 // change thread state | |
1169 #ifdef ASSERT | |
1170 { | |
1171 Label L; | |
1172 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
1173 __ cmpl(t, _thread_in_Java); | |
1174 __ jcc(Assembler::equal, L); | |
1175 __ stop("Wrong thread state in native stub"); | |
1176 __ bind(L); | |
1177 } | |
1178 #endif | |
1179 | |
1180 // Change state to native | |
1181 | |
1182 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1183 _thread_in_native); | |
1184 | |
1185 // Call the native method. | |
1186 __ call(rax); | |
1187 // result potentially in rax or xmm0 | |
1188 | |
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1189 // Verify or restore cpu control state after JNI call |
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1190 __ restore_cpu_control_state_after_jni(); |
0 | 1191 |
1192 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
1193 // in order to extract the result of a method call. If the order of these | |
1194 // pushes change or anything else is added to the stack then the code in | |
1195 // interpreter_frame_result must also change. | |
1196 | |
1197 __ push(dtos); | |
1198 __ push(ltos); | |
1199 | |
1200 // change thread state | |
1201 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1202 _thread_in_native_trans); | |
1203 | |
1204 if (os::is_MP()) { | |
1205 if (UseMembar) { | |
1206 // Force this write out before the read below | |
1207 __ membar(Assembler::Membar_mask_bits( | |
1208 Assembler::LoadLoad | Assembler::LoadStore | | |
1209 Assembler::StoreLoad | Assembler::StoreStore)); | |
1210 } else { | |
1211 // Write serialization page so VM thread can do a pseudo remote membar. | |
1212 // We use the current thread pointer to calculate a thread specific | |
1213 // offset to write to within the page. This minimizes bus traffic | |
1214 // due to cache line collision. | |
1215 __ serialize_memory(r15_thread, rscratch2); | |
1216 } | |
1217 } | |
1218 | |
1219 // check for safepoint operation in progress and/or pending suspend requests | |
1220 { | |
1221 Label Continue; | |
1222 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1223 SafepointSynchronize::_not_synchronized); | |
1224 | |
1225 Label L; | |
1226 __ jcc(Assembler::notEqual, L); | |
1227 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1228 __ jcc(Assembler::equal, Continue); | |
1229 __ bind(L); | |
1230 | |
1231 // Don't use call_VM as it will see a possible pending exception | |
1232 // and forward it and never return here preventing us from | |
1233 // clearing _last_native_pc down below. Also can't use | |
1234 // call_VM_leaf either as it will check to see if r13 & r14 are | |
1235 // preserved and correspond to the bcp/locals pointers. So we do a | |
1236 // runtime call by hand. | |
1237 // | |
304 | 1238 __ mov(c_rarg0, r15_thread); |
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1239 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1240 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1241 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1242 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
304 | 1243 __ mov(rsp, r12); // restore sp |
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1244 __ reinit_heapbase(); |
0 | 1245 __ bind(Continue); |
1246 } | |
1247 | |
1248 // change thread state | |
1249 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1250 | |
1251 // reset_last_Java_frame | |
1252 __ reset_last_Java_frame(true, true); | |
1253 | |
1254 // reset handle block | |
304 | 1255 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
1256 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
0 | 1257 |
1258 // If result is an oop unbox and store it in frame where gc will see it | |
1259 // and result handler will pick it up | |
1260 | |
1261 { | |
1262 Label no_oop, store_result; | |
1263 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
304 | 1264 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1265 __ jcc(Assembler::notEqual, no_oop); |
1266 // retrieve result | |
1267 __ pop(ltos); | |
304 | 1268 __ testptr(rax, rax); |
0 | 1269 __ jcc(Assembler::zero, store_result); |
304 | 1270 __ movptr(rax, Address(rax, 0)); |
0 | 1271 __ bind(store_result); |
304 | 1272 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
0 | 1273 // keep stack depth as expected by pushing oop which will eventually be discarde |
1274 __ push(ltos); | |
1275 __ bind(no_oop); | |
1276 } | |
1277 | |
1278 | |
1279 { | |
1280 Label no_reguard; | |
1281 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
1282 JavaThread::stack_guard_yellow_disabled); | |
1283 __ jcc(Assembler::notEqual, no_reguard); | |
1284 | |
304 | 1285 __ pusha(); // XXX only save smashed registers |
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1286 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1287 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1288 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1289 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1290 __ mov(rsp, r12); // restore sp |
1291 __ popa(); // XXX only restore smashed registers | |
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1292 __ reinit_heapbase(); |
0 | 1293 |
1294 __ bind(no_reguard); | |
1295 } | |
1296 | |
1297 | |
1298 // The method register is junk from after the thread_in_native transition | |
1299 // until here. Also can't call_VM until the bcp has been | |
1300 // restored. Need bcp for throwing exception below so get it now. | |
1301 __ get_method(method); | |
1302 | |
1303 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
1304 // r13 == code_base() | |
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1305 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1306 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
0 | 1307 // handle exceptions (exception handling will handle unlocking!) |
1308 { | |
1309 Label L; | |
304 | 1310 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 1311 __ jcc(Assembler::zero, L); |
1312 // Note: At some point we may want to unify this with the code | |
1313 // used in call_VM_base(); i.e., we should use the | |
1314 // StubRoutines::forward_exception code. For now this doesn't work | |
1315 // here because the rsp is not correctly set at this point. | |
1316 __ MacroAssembler::call_VM(noreg, | |
1317 CAST_FROM_FN_PTR(address, | |
1318 InterpreterRuntime::throw_pending_exception)); | |
1319 __ should_not_reach_here(); | |
1320 __ bind(L); | |
1321 } | |
1322 | |
1323 // do unlocking if necessary | |
1324 { | |
1325 Label L; | |
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1326 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1327 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1328 __ jcc(Assembler::zero, L); | |
1329 // the code below should be shared with interpreter macro | |
1330 // assembler implementation | |
1331 { | |
1332 Label unlock; | |
1333 // BasicObjectLock will be first in list, since this is a | |
1334 // synchronized method. However, need to check that the object | |
1335 // has not been unlocked by an explicit monitorexit bytecode. | |
1336 const Address monitor(rbp, | |
1337 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
1338 wordSize - sizeof(BasicObjectLock))); | |
1339 | |
1340 // monitor expect in c_rarg1 for slow unlock path | |
304 | 1341 __ lea(c_rarg1, monitor); // address of first monitor |
0 | 1342 |
304 | 1343 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
1344 __ testptr(t, t); | |
0 | 1345 __ jcc(Assembler::notZero, unlock); |
1346 | |
1347 // Entry already unlocked, need to throw exception | |
1348 __ MacroAssembler::call_VM(noreg, | |
1349 CAST_FROM_FN_PTR(address, | |
1350 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1351 __ should_not_reach_here(); | |
1352 | |
1353 __ bind(unlock); | |
1354 __ unlock_object(c_rarg1); | |
1355 } | |
1356 __ bind(L); | |
1357 } | |
1358 | |
1359 // jvmti support | |
1360 // Note: This must happen _after_ handling/throwing any exceptions since | |
1361 // the exception handler code notifies the runtime of method exits | |
1362 // too. If this happens before, method entry/exit notifications are | |
1363 // not properly paired (was bug - gri 11/22/99). | |
1364 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1365 | |
1366 // restore potential result in edx:eax, call result handler to | |
1367 // restore potential result in ST0 & handle result | |
1368 | |
1369 __ pop(ltos); | |
1370 __ pop(dtos); | |
1371 | |
304 | 1372 __ movptr(t, Address(rbp, |
1373 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
0 | 1374 __ call(t); |
1375 | |
1376 // remove activation | |
304 | 1377 __ movptr(t, Address(rbp, |
1378 frame::interpreter_frame_sender_sp_offset * | |
1379 wordSize)); // get sender sp | |
0 | 1380 __ leave(); // remove frame anchor |
304 | 1381 __ pop(rdi); // get return address |
1382 __ mov(rsp, t); // set sp to sender sp | |
0 | 1383 __ jmp(rdi); |
1384 | |
1385 if (inc_counter) { | |
1386 // Handle overflow of counter and compile method | |
1387 __ bind(invocation_counter_overflow); | |
1388 generate_counter_overflow(&continue_after_compile); | |
1389 } | |
1390 | |
1391 return entry_point; | |
1392 } | |
1393 | |
1394 // | |
1395 // Generic interpreted method entry to (asm) interpreter | |
1396 // | |
1397 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1398 // determine code generation flags | |
1399 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1400 | |
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1401 // ebx: Method* |
0 | 1402 // r13: sender sp |
1403 address entry_point = __ pc(); | |
1404 | |
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1405 const Address constMethod(rbx, Method::const_offset()); |
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1406 const Address access_flags(rbx, Method::access_flags_offset()); |
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1407 const Address size_of_parameters(rdx, |
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1408 ConstMethod::size_of_parameters_offset()); |
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1409 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1410 |
0 | 1411 |
1412 // get parameter size (always needed) | |
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1413 __ movptr(rdx, constMethod); |
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1414 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1415 |
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1416 // rbx: Method* |
0 | 1417 // rcx: size of parameters |
1418 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1419 | |
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1420 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1421 __ subl(rdx, rcx); // rdx = no. of additional locals |
1422 | |
1423 // YYY | |
1424 // __ incrementl(rdx); | |
1425 // __ andl(rdx, -2); | |
1426 | |
1427 // see if we've got enough room on the stack for locals plus overhead. | |
1428 generate_stack_overflow_check(); | |
1429 | |
1430 // get return address | |
304 | 1431 __ pop(rax); |
0 | 1432 |
1433 // compute beginning of parameters (r14) | |
304 | 1434 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1435 |
1436 // rdx - # of additional locals | |
1437 // allocate space for locals | |
1438 // explicitly initialize locals | |
1439 { | |
1440 Label exit, loop; | |
1441 __ testl(rdx, rdx); | |
1442 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1443 __ bind(loop); | |
304 | 1444 __ push((int) NULL_WORD); // initialize local variables |
0 | 1445 __ decrementl(rdx); // until everything initialized |
1446 __ jcc(Assembler::greater, loop); | |
1447 __ bind(exit); | |
1448 } | |
1449 | |
1450 // initialize fixed part of activation frame | |
1451 generate_fixed_frame(false); | |
1452 | |
1453 // make sure method is not native & not abstract | |
1454 #ifdef ASSERT | |
1455 __ movl(rax, access_flags); | |
1456 { | |
1457 Label L; | |
1458 __ testl(rax, JVM_ACC_NATIVE); | |
1459 __ jcc(Assembler::zero, L); | |
1460 __ stop("tried to execute native method as non-native"); | |
1461 __ bind(L); | |
1462 } | |
1463 { | |
1464 Label L; | |
1465 __ testl(rax, JVM_ACC_ABSTRACT); | |
1466 __ jcc(Assembler::zero, L); | |
1467 __ stop("tried to execute abstract method in interpreter"); | |
1468 __ bind(L); | |
1469 } | |
1470 #endif | |
1471 | |
1472 // Since at this point in the method invocation the exception | |
1473 // handler would try to exit the monitor of synchronized methods | |
1474 // which hasn't been entered yet, we set the thread local variable | |
1475 // _do_not_unlock_if_synchronized to true. The remove_activation | |
1476 // will check this flag. | |
1477 | |
1478 const Address do_not_unlock_if_synchronized(r15_thread, | |
1479 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1480 __ movbool(do_not_unlock_if_synchronized, true); | |
1481 | |
1482 // increment invocation count & check for overflow | |
1483 Label invocation_counter_overflow; | |
1484 Label profile_method; | |
1485 Label profile_method_continue; | |
1486 if (inc_counter) { | |
1487 generate_counter_incr(&invocation_counter_overflow, | |
1488 &profile_method, | |
1489 &profile_method_continue); | |
1490 if (ProfileInterpreter) { | |
1491 __ bind(profile_method_continue); | |
1492 } | |
1493 } | |
1494 | |
1495 Label continue_after_compile; | |
1496 __ bind(continue_after_compile); | |
1497 | |
1498 // check for synchronized interpreted methods | |
1499 bang_stack_shadow_pages(false); | |
1500 | |
1501 // reset the _do_not_unlock_if_synchronized flag | |
1502 __ movbool(do_not_unlock_if_synchronized, false); | |
1503 | |
1504 // check for synchronized methods | |
1505 // Must happen AFTER invocation_counter check and stack overflow check, | |
1506 // so method is not locked if overflows. | |
1507 if (synchronized) { | |
1508 // Allocate monitor and lock method | |
1509 lock_method(); | |
1510 } else { | |
1511 // no synchronization necessary | |
1512 #ifdef ASSERT | |
1513 { | |
1514 Label L; | |
1515 __ movl(rax, access_flags); | |
1516 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1517 __ jcc(Assembler::zero, L); | |
1518 __ stop("method needs synchronization"); | |
1519 __ bind(L); | |
1520 } | |
1521 #endif | |
1522 } | |
1523 | |
1524 // start execution | |
1525 #ifdef ASSERT | |
1526 { | |
1527 Label L; | |
1528 const Address monitor_block_top (rbp, | |
1529 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1530 __ movptr(rax, monitor_block_top); |
1531 __ cmpptr(rax, rsp); | |
0 | 1532 __ jcc(Assembler::equal, L); |
1533 __ stop("broken stack frame setup in interpreter"); | |
1534 __ bind(L); | |
1535 } | |
1536 #endif | |
1537 | |
1538 // jvmti support | |
1539 __ notify_method_entry(); | |
1540 | |
1541 __ dispatch_next(vtos); | |
1542 | |
1543 // invocation counter overflow | |
1544 if (inc_counter) { | |
1545 if (ProfileInterpreter) { | |
1546 // We have decided to profile this method in the interpreter | |
1547 __ bind(profile_method); | |
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1548 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1549 __ set_method_data_pointer_for_bcp(); |
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1550 __ get_method(rbx); |
0 | 1551 __ jmp(profile_method_continue); |
1552 } | |
1553 // Handle overflow of counter and compile method | |
1554 __ bind(invocation_counter_overflow); | |
1555 generate_counter_overflow(&continue_after_compile); | |
1556 } | |
1557 | |
1558 return entry_point; | |
1559 } | |
1560 | |
1561 // Entry points | |
1562 // | |
1563 // Here we generate the various kind of entries into the interpreter. | |
1564 // The two main entry type are generic bytecode methods and native | |
1565 // call method. These both come in synchronized and non-synchronized | |
1566 // versions but the frame layout they create is very similar. The | |
1567 // other method entry types are really just special purpose entries | |
1568 // that are really entry and interpretation all in one. These are for | |
1569 // trivial methods like accessor, empty, or special math methods. | |
1570 // | |
1571 // When control flow reaches any of the entry types for the interpreter | |
1572 // the following holds -> | |
1573 // | |
1574 // Arguments: | |
1575 // | |
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1576 // rbx: Method* |
0 | 1577 // |
1578 // Stack layout immediately at entry | |
1579 // | |
1580 // [ return address ] <--- rsp | |
1581 // [ parameter n ] | |
1582 // ... | |
1583 // [ parameter 1 ] | |
1584 // [ expression stack ] (caller's java expression stack) | |
1585 | |
1586 // Assuming that we don't go to one of the trivial specialized entries | |
1587 // the stack will look like below when we are ready to execute the | |
1588 // first bytecode (or call the native routine). The register usage | |
1589 // will be as the template based interpreter expects (see | |
1590 // interpreter_amd64.hpp). | |
1591 // | |
1592 // local variables follow incoming parameters immediately; i.e. | |
1593 // the return address is moved to the end of the locals). | |
1594 // | |
1595 // [ monitor entry ] <--- rsp | |
1596 // ... | |
1597 // [ monitor entry ] | |
1598 // [ expr. stack bottom ] | |
1599 // [ saved r13 ] | |
1600 // [ current r14 ] | |
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1601 // [ Method* ] |
0 | 1602 // [ saved ebp ] <--- rbp |
1603 // [ return address ] | |
1604 // [ local variable m ] | |
1605 // ... | |
1606 // [ local variable 1 ] | |
1607 // [ parameter n ] | |
1608 // ... | |
1609 // [ parameter 1 ] <--- r14 | |
1610 | |
1611 address AbstractInterpreterGenerator::generate_method_entry( | |
1612 AbstractInterpreter::MethodKind kind) { | |
1613 // determine code generation flags | |
1614 bool synchronized = false; | |
1615 address entry_point = NULL; | |
1616 | |
1617 switch (kind) { | |
1618 case Interpreter::zerolocals : break; | |
1619 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
9046
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Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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|
1620 #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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1621 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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1622 #endif |
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1623 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; |
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1624 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; |
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1625 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
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1626 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; |
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1627 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; |
706
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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|
1628 |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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|
1629 case Interpreter::java_lang_math_sin : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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1630 case Interpreter::java_lang_math_cos : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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|
1631 case Interpreter::java_lang_math_tan : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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1632 case Interpreter::java_lang_math_abs : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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1633 case Interpreter::java_lang_math_log : // fall thru |
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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1634 case Interpreter::java_lang_math_log10 : // fall thru |
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1635 case Interpreter::java_lang_math_sqrt : // fall thru |
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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1636 case Interpreter::java_lang_math_pow : // fall thru |
6266
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1637 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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|
1638 case Interpreter::java_lang_ref_reference_get |
e1162778c1c8
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1639 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
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1640 default: |
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1641 fatal(err_msg("unexpected method kind: %d", kind)); |
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1642 break; |
0 | 1643 } |
1644 | |
1645 if (entry_point) { | |
1646 return entry_point; | |
1647 } | |
1648 | |
1649 return ((InterpreterGenerator*) this)-> | |
1650 generate_normal_entry(synchronized); | |
1651 } | |
1652 | |
1174
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6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1135
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|
1653 // These should never be compiled since the interpreter will prefer |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1135
diff
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|
1654 // the compiled version to the intrinsic version. |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1135
diff
changeset
|
1655 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1135
diff
changeset
|
1656 switch (method_kind(m)) { |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
1135
diff
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|
1657 case Interpreter::java_lang_math_sin : // fall thru |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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diff
changeset
|
1658 case Interpreter::java_lang_math_cos : // fall thru |
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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|
1659 case Interpreter::java_lang_math_tan : // fall thru |
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parents:
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diff
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|
1660 case Interpreter::java_lang_math_abs : // fall thru |
ddb7834449d0
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|
1661 case Interpreter::java_lang_math_log : // fall thru |
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 case Interpreter::java_lang_math_log10 : // fall thru |
6084
6759698e3140
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4771
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|
1663 case Interpreter::java_lang_math_sqrt : // fall thru |
6759698e3140
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diff
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|
1664 case Interpreter::java_lang_math_pow : // fall thru |
6759698e3140
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|
1665 case Interpreter::java_lang_math_exp : |
1174
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diff
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|
1666 return false; |
ddb7834449d0
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parents:
1135
diff
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|
1667 default: |
ddb7834449d0
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parents:
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diff
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|
1668 return true; |
ddb7834449d0
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parents:
1135
diff
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|
1669 } |
ddb7834449d0
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parents:
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diff
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|
1670 } |
ddb7834449d0
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|
1671 |
0 | 1672 // How much stack a method activation needs in words. |
6725
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coleenp
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|
1673 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1674 const int entry_size = frame::interpreter_frame_monitor_size(); |
1675 | |
1676 // total overhead size: entry_size + (saved rbp thru expr stack | |
1677 // bottom). be sure to change this if you add/subtract anything | |
1678 // to/from the overhead area | |
1679 const int overhead_size = | |
1680 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
1681 | |
1682 const int stub_code = frame::entry_frame_after_call_words; | |
10393
603ca7e51354
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roland
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10141
diff
changeset
|
1683 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1684 Interpreter::stackElementWords; |
0 | 1685 return (overhead_size + method_stack + stub_code); |
1686 } | |
1687 | |
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|
1688 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1689 int tempcount, |
1690 int popframe_extra_args, | |
1691 int moncount, | |
3369
3d2ab563047a
7043461: VM crashes in void LinkResolver::runtime_resolve_virtual_method
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3252
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changeset
|
1692 int caller_actual_parameters, |
0 | 1693 int callee_param_count, |
1694 int callee_locals, | |
1695 frame* caller, | |
1696 frame* interpreter_frame, | |
8727
0094485b46c7
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roland
parents:
8001
diff
changeset
|
1697 bool is_top_frame, |
0094485b46c7
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8001
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changeset
|
1698 bool is_bottom_frame) { |
0 | 1699 // Note: This calculation must exactly parallel the frame setup |
1700 // in AbstractInterpreterGenerator::generate_method_entry. | |
1701 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1702 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
1703 // right size, as determined by a previous call to this method. | |
1704 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1705 | |
1706 // fixed size of an interpreter frame: | |
1506 | 1707 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1708 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1709 Interpreter::stackElementWords; |
0 | 1710 |
1711 int overhead = frame::sender_sp_offset - | |
1712 frame::interpreter_frame_initial_sp_offset; | |
1713 // Our locals were accounted for by the caller (or last_frame_adjust | |
1714 // on the transistion) Since the callee parameters already account | |
1715 // for the callee's params we only need to account for the extra | |
1716 // locals. | |
1717 int size = overhead + | |
1506 | 1718 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
0 | 1719 moncount * frame::interpreter_frame_monitor_size() + |
1506 | 1720 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
0 | 1721 if (interpreter_frame != NULL) { |
1722 #ifdef ASSERT | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2245
diff
changeset
|
1723 if (!EnableInvokeDynamic) |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1108
diff
changeset
|
1724 // @@@ 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
|
1725 // Probably, since deoptimization doesn't work yet. |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1108
diff
changeset
|
1726 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1727 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1728 #endif | |
1729 | |
1730 interpreter_frame->interpreter_frame_set_method(method); | |
1731 // NOTE the difference in using sender_sp and | |
1732 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
1733 // the original sp of the caller (the unextended_sp) and | |
1734 // sender_sp is fp+16 XXX | |
1735 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1736 | |
4042
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3451
diff
changeset
|
1737 #ifdef ASSERT |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3451
diff
changeset
|
1738 if (caller->is_interpreted_frame()) { |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3451
diff
changeset
|
1739 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
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diff
changeset
|
1740 } |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
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3451
diff
changeset
|
1741 #endif |
b20d64f83668
7090904: JSR 292: JRuby junit test crashes in PSScavengeRootsClosure::do_oop
twisti
parents:
3451
diff
changeset
|
1742 |
0 | 1743 interpreter_frame->interpreter_frame_set_locals(locals); |
1744 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1745 BasicObjectLock* monbot = montop - moncount; | |
1746 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1747 | |
1748 // Set last_sp | |
1749 intptr_t* esp = (intptr_t*) monbot - | |
1506 | 1750 tempcount*Interpreter::stackElementWords - |
0 | 1751 popframe_extra_args; |
1752 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
1753 | |
1754 // All frames but the initial (oldest) interpreter frame we fill in have | |
1755 // a value for sender_sp that allows walking the stack but isn't | |
1756 // truly correct. Correct the value here. | |
1757 if (extra_locals != 0 && | |
1758 interpreter_frame->sender_sp() == | |
1759 interpreter_frame->interpreter_frame_sender_sp()) { | |
1760 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
1761 extra_locals); | |
1762 } | |
1763 *interpreter_frame->interpreter_frame_cache_addr() = | |
1764 method->constants()->cache(); | |
1765 } | |
1766 return size; | |
1767 } | |
1768 | |
1769 //----------------------------------------------------------------------------- | |
1770 // Exceptions | |
1771 | |
1772 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1773 // Entry point in previous activation (i.e., if the caller was | |
1774 // interpreted) | |
1775 Interpreter::_rethrow_exception_entry = __ pc(); | |
1776 // Restore sp to interpreter_frame_last_sp even though we are going | |
1777 // to empty the expression stack for the exception processing. | |
304 | 1778 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 1779 // rax: exception |
1780 // rdx: return address/pc that threw exception | |
1781 __ restore_bcp(); // r13 points to call/send | |
1782 __ restore_locals(); | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
|
1783 __ reinit_heapbase(); // restore r12 as heapbase. |
0 | 1784 // Entry point for exceptions thrown within interpreter code |
1785 Interpreter::_throw_exception_entry = __ pc(); | |
1786 // expression stack is undefined here | |
1787 // rax: exception | |
1788 // r13: exception bcp | |
1789 __ verify_oop(rax); | |
304 | 1790 __ mov(c_rarg1, rax); |
0 | 1791 |
1792 // expression stack must be empty before entering the VM in case of | |
1793 // an exception | |
1794 __ empty_expression_stack(); | |
1795 // find exception handler address and preserve exception oop | |
1796 __ call_VM(rdx, | |
1797 CAST_FROM_FN_PTR(address, | |
1798 InterpreterRuntime::exception_handler_for_exception), | |
1799 c_rarg1); | |
1800 // rax: exception handler entry point | |
1801 // rdx: preserved exception oop | |
1802 // r13: bcp for exception handler | |
1803 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1804 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1805 | |
1806 // If the exception is not handled in the current frame the frame is | |
1807 // removed and the exception is rethrown (i.e. exception | |
1808 // continuation is _rethrow_exception). | |
1809 // | |
1810 // Note: At this point the bci is still the bxi for the instruction | |
1811 // which caused the exception and the expression stack is | |
1812 // empty. Thus, for any VM calls at this point, GC will find a legal | |
1813 // oop map (with empty expression stack). | |
1814 | |
1815 // In current activation | |
1816 // tos: exception | |
1817 // esi: exception bcp | |
1818 | |
1819 // | |
1820 // JVMTI PopFrame support | |
1821 // | |
1822 | |
1823 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1824 __ empty_expression_stack(); | |
1825 // Set the popframe_processing bit in pending_popframe_condition | |
1826 // indicating that we are currently handling popframe, so that | |
1827 // call_VMs that may happen later do not trigger new popframe | |
1828 // handling cycles. | |
1829 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
1830 __ orl(rdx, JavaThread::popframe_processing_bit); | |
1831 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
1832 | |
1833 { | |
1834 // Check to see whether we are returning to a deoptimized frame. | |
1835 // (The PopFrame call ensures that the caller of the popped frame is | |
1836 // either interpreted or compiled and deoptimizes it if compiled.) | |
1837 // In this case, we can't call dispatch_next() after the frame is | |
1838 // popped, but instead must save the incoming arguments and restore | |
1839 // them after deoptimization has occurred. | |
1840 // | |
1841 // Note that we don't compare the return PC against the | |
1842 // deoptimization blob's unpack entry because of the presence of | |
1843 // adapter frames in C2. | |
1844 Label caller_not_deoptimized; | |
304 | 1845 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1846 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1847 InterpreterRuntime::interpreter_contains), c_rarg1); | |
1848 __ testl(rax, rax); | |
1849 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1850 | |
1851 // Compute size of arguments for saving when returning to | |
1852 // deoptimized caller | |
1853 __ 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
changeset
|
1854 __ movptr(rax, Address(rax, Method::const_offset())); |
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7199
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|
1855 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
0 | 1856 size_of_parameters_offset()))); |
1506 | 1857 __ shll(rax, Interpreter::logStackElementSize); |
0 | 1858 __ restore_locals(); // XXX do we need this? |
304 | 1859 __ subptr(r14, rax); |
1860 __ addptr(r14, wordSize); | |
0 | 1861 // Save these arguments |
1862 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
1863 Deoptimization:: | |
1864 popframe_preserve_args), | |
1865 r15_thread, rax, r14); | |
1866 | |
1867 __ remove_activation(vtos, rdx, | |
1868 /* throw_monitor_exception */ false, | |
1869 /* install_monitor_exception */ false, | |
1870 /* notify_jvmdi */ false); | |
1871 | |
1872 // Inform deoptimization that it is responsible for restoring | |
1873 // these arguments | |
1874 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1875 JavaThread::popframe_force_deopt_reexecution_bit); | |
1876 | |
1877 // Continue in deoptimization handler | |
1878 __ jmp(rdx); | |
1879 | |
1880 __ bind(caller_not_deoptimized); | |
1881 } | |
1882 | |
1883 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
1884 /* throw_monitor_exception */ false, | |
1885 /* install_monitor_exception */ false, | |
1886 /* notify_jvmdi */ false); | |
1887 | |
1888 // Finish with popframe handling | |
1889 // A previous I2C followed by a deoptimization might have moved the | |
1890 // outgoing arguments further up the stack. PopFrame expects the | |
1891 // mutations to those outgoing arguments to be preserved and other | |
1892 // constraints basically require this frame to look exactly as | |
1893 // though it had previously invoked an interpreted activation with | |
1894 // no space between the top of the expression stack (current | |
1895 // last_sp) and the top of stack. Rather than force deopt to | |
1896 // maintain this kind of invariant all the time we call a small | |
1897 // fixup routine to move the mutated arguments onto the top of our | |
1898 // expression stack if necessary. | |
304 | 1899 __ mov(c_rarg1, rsp); |
1900 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
0 | 1901 // PC must point into interpreter here |
1902 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
1903 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
1904 __ reset_last_Java_frame(true, true); | |
1905 // Restore the last_sp and null it out | |
304 | 1906 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
1907 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
0 | 1908 |
1909 __ restore_bcp(); // XXX do we need this? | |
1910 __ restore_locals(); // XXX do we need this? | |
1911 // The method data pointer was incremented already during | |
1912 // call profiling. We have to restore the mdp for the current bcp. | |
1913 if (ProfileInterpreter) { | |
1914 __ set_method_data_pointer_for_bcp(); | |
1915 } | |
1916 | |
1917 // Clear the popframe condition flag | |
1918 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1919 JavaThread::popframe_inactive); | |
1920 | |
1921 __ dispatch_next(vtos); | |
1922 // end of PopFrame support | |
1923 | |
1924 Interpreter::_remove_activation_entry = __ pc(); | |
1925 | |
1926 // preserve exception over this code sequence | |
1927 __ pop_ptr(rax); | |
304 | 1928 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
0 | 1929 // remove the activation (without doing throws on illegalMonitorExceptions) |
1930 __ remove_activation(vtos, rdx, false, true, false); | |
1931 // restore exception | |
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1932 __ get_vm_result(rax, r15_thread); |
0 | 1933 |
1934 // In between activations - previous activation type unknown yet | |
1935 // compute continuation point - the continuation point expects the | |
1936 // following registers set up: | |
1937 // | |
1938 // rax: exception | |
1939 // rdx: return address/pc that threw exception | |
1940 // rsp: expression stack of caller | |
1941 // rbp: ebp of caller | |
304 | 1942 __ push(rax); // save exception |
1943 __ push(rdx); // save return address | |
0 | 1944 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1945 SharedRuntime::exception_handler_for_return_address), | |
1295 | 1946 r15_thread, rdx); |
304 | 1947 __ mov(rbx, rax); // save exception handler |
1948 __ pop(rdx); // restore return address | |
1949 __ pop(rax); // restore exception | |
0 | 1950 // Note that an "issuing PC" is actually the next PC after the call |
1951 __ jmp(rbx); // jump to exception | |
1952 // handler of caller | |
1953 } | |
1954 | |
1955 | |
1956 // | |
1957 // JVMTI ForceEarlyReturn support | |
1958 // | |
1959 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
1960 address entry = __ pc(); | |
1961 | |
1962 __ restore_bcp(); | |
1963 __ restore_locals(); | |
1964 __ empty_expression_stack(); | |
1965 __ load_earlyret_value(state); | |
1966 | |
304 | 1967 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 1968 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
1969 | |
1970 // Clear the earlyret state | |
1971 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
1972 | |
1973 __ remove_activation(state, rsi, | |
1974 false, /* throw_monitor_exception */ | |
1975 false, /* install_monitor_exception */ | |
1976 true); /* notify_jvmdi */ | |
1977 __ jmp(rsi); | |
1978 | |
1979 return entry; | |
1980 } // end of ForceEarlyReturn support | |
1981 | |
1982 | |
1983 //----------------------------------------------------------------------------- | |
1984 // Helper for vtos entry point generation | |
1985 | |
1986 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
1987 address& bep, | |
1988 address& cep, | |
1989 address& sep, | |
1990 address& aep, | |
1991 address& iep, | |
1992 address& lep, | |
1993 address& fep, | |
1994 address& dep, | |
1995 address& vep) { | |
1996 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
1997 Label L; | |
1998 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
1999 fep = __ pc(); __ push_f(); __ jmp(L); | |
2000 dep = __ pc(); __ push_d(); __ jmp(L); | |
2001 lep = __ pc(); __ push_l(); __ jmp(L); | |
2002 bep = cep = sep = | |
2003 iep = __ pc(); __ push_i(); | |
2004 vep = __ pc(); | |
2005 __ bind(L); | |
2006 generate_and_dispatch(t); | |
2007 } | |
2008 | |
2009 | |
2010 //----------------------------------------------------------------------------- | |
2011 // Generation of individual instructions | |
2012 | |
2013 // helpers for generate_and_dispatch | |
2014 | |
2015 | |
2016 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
2017 : TemplateInterpreterGenerator(code) { | |
2018 generate_all(); // down here so it can be "virtual" | |
2019 } | |
2020 | |
2021 //----------------------------------------------------------------------------- | |
2022 | |
2023 // Non-product code | |
2024 #ifndef PRODUCT | |
2025 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
2026 address entry = __ pc(); | |
2027 | |
2028 __ push(state); | |
304 | 2029 __ push(c_rarg0); |
2030 __ push(c_rarg1); | |
2031 __ push(c_rarg2); | |
2032 __ push(c_rarg3); | |
2033 __ mov(c_rarg2, rax); // Pass itos | |
0 | 2034 #ifdef _WIN64 |
2035 __ movflt(xmm3, xmm0); // Pass ftos | |
2036 #endif | |
2037 __ call_VM(noreg, | |
2038 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
2039 c_rarg1, c_rarg2, c_rarg3); | |
304 | 2040 __ pop(c_rarg3); |
2041 __ pop(c_rarg2); | |
2042 __ pop(c_rarg1); | |
2043 __ pop(c_rarg0); | |
0 | 2044 __ pop(state); |
2045 __ ret(0); // return from result handler | |
2046 | |
2047 return entry; | |
2048 } | |
2049 | |
2050 void TemplateInterpreterGenerator::count_bytecode() { | |
2051 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
2052 } | |
2053 | |
2054 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
2055 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
2056 } | |
2057 | |
2058 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2059 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
2060 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2061 __ orl(rbx, | |
2062 ((int) t->bytecode()) << | |
2063 BytecodePairHistogram::log2_number_of_codes); | |
2064 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2065 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
2066 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
2067 } | |
2068 | |
2069 | |
2070 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2071 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2072 // The run-time runtime saves the right registers, depending on | |
2073 // the tosca in-state for the given template. | |
2074 | |
2075 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2076 "entry must have been generated"); | |
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2077 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 2078 __ andptr(rsp, -16); // align stack as required by ABI |
0 | 2079 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
304 | 2080 __ mov(rsp, r12); // restore sp |
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2081 __ reinit_heapbase(); |
0 | 2082 } |
2083 | |
2084 | |
2085 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2086 Label L; | |
2087 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2088 StopInterpreterAt); | |
2089 __ jcc(Assembler::notEqual, L); | |
2090 __ int3(); | |
2091 __ bind(L); | |
2092 } | |
2093 #endif // !PRODUCT | |
304 | 2094 #endif // ! CC_INTERP |