Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 10872:33a2ca7c3bc8
Support for byte fields in LIR instructions.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Thu, 25 Jul 2013 11:50:59 +0200 |
parents | e7d07c9bb779 |
children | 6b0fd0964b87 |
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 | |
307 // increment invocation count & check for overflow | |
308 // | |
309 // Note: checking for negative value instead of overflow | |
310 // so we have a 'sticky' overflow test | |
311 // | |
312 // rbx: method | |
313 // ecx: invocation counter | |
314 // | |
315 void InterpreterGenerator::generate_counter_incr( | |
316 Label* overflow, | |
317 Label* profile_method, | |
318 Label* profile_method_continue) { | |
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319 Label done; |
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320 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
1783 | 321 if (TieredCompilation) { |
322 int increment = InvocationCounter::count_increment; | |
323 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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324 Label no_mdo; |
1783 | 325 if (ProfileInterpreter) { |
326 // Are we profiling? | |
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327 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
1783 | 328 __ testptr(rax, rax); |
329 __ jccb(Assembler::zero, no_mdo); | |
330 // Increment counter in the MDO | |
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331 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
1783 | 332 in_bytes(InvocationCounter::counter_offset())); |
333 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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334 __ jmp(done); |
1783 | 335 } |
336 __ bind(no_mdo); | |
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337 // Increment counter in MethodCounters |
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338 const Address invocation_counter(rax, |
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339 MethodCounters::invocation_counter_offset() + |
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340 InvocationCounter::counter_offset()); |
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341 __ get_method_counters(rbx, rax, done); |
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342 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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343 false, Assembler::zero, overflow); |
1783 | 344 __ bind(done); |
345 } else { | |
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346 const Address backedge_counter(rax, |
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347 MethodCounters::backedge_counter_offset() + |
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348 InvocationCounter::counter_offset()); |
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349 const Address invocation_counter(rax, |
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350 MethodCounters::invocation_counter_offset() + |
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351 InvocationCounter::counter_offset()); |
0 | 352 |
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353 __ get_method_counters(rbx, rax, done); |
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354 |
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355 if (ProfileInterpreter) { |
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356 __ incrementl(Address(rax, |
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357 MethodCounters::interpreter_invocation_counter_offset())); |
1783 | 358 } |
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359 |
1783 | 360 // Update standard invocation counters |
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361 __ movl(rcx, invocation_counter); |
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362 __ incrementl(rcx, InvocationCounter::count_increment); |
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363 __ movl(invocation_counter, rcx); // save invocation count |
0 | 364 |
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365 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 366 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
0 | 367 |
1783 | 368 __ addl(rcx, rax); // add both counters |
0 | 369 |
1783 | 370 // profile_method is non-null only for interpreted method so |
371 // profile_method != NULL == !native_call | |
372 | |
373 if (ProfileInterpreter && profile_method != NULL) { | |
374 // Test to see if we should create a method data oop | |
375 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
376 __ jcc(Assembler::less, *profile_method_continue); | |
0 | 377 |
1783 | 378 // if no method data exists, go to profile_method |
379 __ test_method_data_pointer(rax, *profile_method); | |
380 } | |
381 | |
382 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
383 __ jcc(Assembler::aboveEqual, *overflow); | |
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384 __ bind(done); |
0 | 385 } |
386 } | |
387 | |
388 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
389 | |
390 // Asm interpreter on entry | |
391 // r14 - locals | |
392 // r13 - bcp | |
393 // rbx - method | |
394 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
395 // rbp - interpreter frame | |
396 | |
397 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
398 // Everything as it was on entry | |
399 // rdx is not restored. Doesn't appear to really be set. | |
400 | |
401 // InterpreterRuntime::frequency_counter_overflow takes two | |
402 // arguments, the first (thread) is passed by call_VM, the second | |
403 // indicates if the counter overflow occurs at a backwards branch | |
404 // (NULL bcp). We pass zero for it. The call returns the address | |
405 // of the verified entry point for the method or NULL if the | |
406 // compilation did not complete (either went background or bailed | |
407 // out). | |
408 __ movl(c_rarg1, 0); | |
409 __ call_VM(noreg, | |
410 CAST_FROM_FN_PTR(address, | |
411 InterpreterRuntime::frequency_counter_overflow), | |
412 c_rarg1); | |
413 | |
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414 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 415 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
416 // and jump to the interpreted entry. | |
417 __ jmp(*do_continue, relocInfo::none); | |
418 } | |
419 | |
420 // See if we've got enough room on the stack for locals plus overhead. | |
421 // The expression stack grows down incrementally, so the normal guard | |
422 // page mechanism will work for that. | |
423 // | |
424 // NOTE: Since the additional locals are also always pushed (wasn't | |
425 // obvious in generate_method_entry) so the guard should work for them | |
426 // too. | |
427 // | |
428 // Args: | |
429 // rdx: number of additional locals this frame needs (what we must check) | |
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430 // rbx: Method* |
0 | 431 // |
432 // Kills: | |
433 // rax | |
434 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
435 | |
436 // monitor entry size: see picture of stack set | |
437 // (generate_method_entry) and frame_amd64.hpp | |
438 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
439 | |
440 // total overhead size: entry_size + (saved rbp through expr stack | |
441 // bottom). be sure to change this if you add/subtract anything | |
442 // to/from the overhead area | |
443 const int overhead_size = | |
444 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
445 | |
446 const int page_size = os::vm_page_size(); | |
447 | |
448 Label after_frame_check; | |
449 | |
450 // see if the frame is greater than one page in size. If so, | |
451 // then we need to verify there is enough stack space remaining | |
452 // for the additional locals. | |
1506 | 453 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
0 | 454 __ jcc(Assembler::belowEqual, after_frame_check); |
455 | |
456 // compute rsp as if this were going to be the last frame on | |
457 // the stack before the red zone | |
458 | |
459 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
460 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
461 | |
462 // locals + overhead, in bytes | |
304 | 463 __ mov(rax, rdx); |
1506 | 464 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
304 | 465 __ addptr(rax, overhead_size); |
0 | 466 |
467 #ifdef ASSERT | |
468 Label stack_base_okay, stack_size_okay; | |
469 // verify that thread stack base is non-zero | |
304 | 470 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 471 __ jcc(Assembler::notEqual, stack_base_okay); |
472 __ stop("stack base is zero"); | |
473 __ bind(stack_base_okay); | |
474 // verify that thread stack size is non-zero | |
304 | 475 __ cmpptr(stack_size, 0); |
0 | 476 __ jcc(Assembler::notEqual, stack_size_okay); |
477 __ stop("stack size is zero"); | |
478 __ bind(stack_size_okay); | |
479 #endif | |
480 | |
481 // Add stack base to locals and subtract stack size | |
304 | 482 __ addptr(rax, stack_base); |
483 __ subptr(rax, stack_size); | |
0 | 484 |
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485 // Use the maximum number of pages we might bang. |
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486 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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487 (StackRedPages+StackYellowPages); |
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488 |
0 | 489 // add in the red and yellow zone sizes |
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490 __ addptr(rax, max_pages * page_size); |
0 | 491 |
492 // check against the current stack bottom | |
304 | 493 __ cmpptr(rsp, rax); |
0 | 494 __ jcc(Assembler::above, after_frame_check); |
495 | |
4743 | 496 // Restore sender's sp as SP. This is necessary if the sender's |
497 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
498 // and safer anyway in case of JSR292 adaptations. | |
499 | |
500 __ pop(rax); // return address must be moved if SP is changed | |
501 __ mov(rsp, r13); | |
502 __ push(rax); | |
503 | |
504 // Note: the restored frame is not necessarily interpreted. | |
505 // Use the shared runtime version of the StackOverflowError. | |
506 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
507 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 508 |
509 // all done with frame size check | |
510 __ bind(after_frame_check); | |
511 } | |
512 | |
513 // Allocate monitor and lock method (asm interpreter) | |
514 // | |
515 // Args: | |
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516 // rbx: Method* |
0 | 517 // r14: locals |
518 // | |
519 // Kills: | |
520 // rax | |
521 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
522 // rscratch1, rscratch2 (scratch regs) | |
523 void InterpreterGenerator::lock_method(void) { | |
524 // synchronize method | |
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525 const Address access_flags(rbx, Method::access_flags_offset()); |
0 | 526 const Address monitor_block_top( |
527 rbp, | |
528 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
529 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
530 | |
531 #ifdef ASSERT | |
532 { | |
533 Label L; | |
534 __ movl(rax, access_flags); | |
535 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
536 __ jcc(Assembler::notZero, L); | |
537 __ stop("method doesn't need synchronization"); | |
538 __ bind(L); | |
539 } | |
540 #endif // ASSERT | |
541 | |
542 // get synchronization object | |
543 { | |
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544 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 545 Label done; |
546 __ movl(rax, access_flags); | |
547 __ testl(rax, JVM_ACC_STATIC); | |
548 // get receiver (assume this is frequent case) | |
304 | 549 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
0 | 550 __ jcc(Assembler::zero, done); |
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551 __ movptr(rax, Address(rbx, Method::const_offset())); |
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552 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
304 | 553 __ movptr(rax, Address(rax, |
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554 ConstantPool::pool_holder_offset_in_bytes())); |
304 | 555 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 556 |
557 #ifdef ASSERT | |
558 { | |
559 Label L; | |
304 | 560 __ testptr(rax, rax); |
0 | 561 __ jcc(Assembler::notZero, L); |
562 __ stop("synchronization object is NULL"); | |
563 __ bind(L); | |
564 } | |
565 #endif // ASSERT | |
566 | |
567 __ bind(done); | |
568 } | |
569 | |
570 // add space for monitor & lock | |
304 | 571 __ subptr(rsp, entry_size); // add space for a monitor entry |
572 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
0 | 573 // store object |
304 | 574 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
575 __ movptr(c_rarg1, rsp); // object address | |
0 | 576 __ lock_object(c_rarg1); |
577 } | |
578 | |
579 // Generate a fixed interpreter frame. This is identical setup for | |
580 // interpreted methods and for native methods hence the shared code. | |
581 // | |
582 // Args: | |
583 // rax: return address | |
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584 // rbx: Method* |
0 | 585 // r14: pointer to locals |
586 // r13: sender sp | |
587 // rdx: cp cache | |
588 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
589 // initialize fixed part of activation frame | |
304 | 590 __ push(rax); // save return address |
0 | 591 __ enter(); // save old & set new rbp |
304 | 592 __ push(r13); // set sender sp |
593 __ push((int)NULL_WORD); // leave last_sp as null | |
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594 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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595 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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596 __ push(rbx); // save Method* |
0 | 597 if (ProfileInterpreter) { |
598 Label method_data_continue; | |
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599 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 600 __ testptr(rdx, rdx); |
0 | 601 __ jcc(Assembler::zero, method_data_continue); |
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602 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 603 __ bind(method_data_continue); |
304 | 604 __ push(rdx); // set the mdp (method data pointer) |
0 | 605 } else { |
304 | 606 __ push(0); |
0 | 607 } |
608 | |
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609 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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610 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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611 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 612 __ push(rdx); // set constant pool cache |
613 __ push(r14); // set locals pointer | |
0 | 614 if (native_call) { |
304 | 615 __ push(0); // no bcp |
0 | 616 } else { |
304 | 617 __ push(r13); // set bcp |
0 | 618 } |
304 | 619 __ push(0); // reserve word for pointer to expression stack bottom |
620 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 621 } |
622 | |
623 // End of helpers | |
624 | |
304 | 625 // Various method entries |
626 //------------------------------------------------------------------------------------------------------------------------ | |
627 // | |
628 // | |
629 | |
630 // Call an accessor method (assuming it is resolved, otherwise drop | |
631 // into vanilla (slow path) entry | |
632 address InterpreterGenerator::generate_accessor_entry(void) { | |
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633 // rbx: Method* |
304 | 634 |
635 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
636 | |
637 address entry_point = __ pc(); | |
638 Label xreturn_path; | |
639 | |
640 // do fastpath for resolved accessor methods | |
641 if (UseFastAccessorMethods) { | |
642 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
643 // thereof; parameter size = 1 | |
644 // Note: We can only use this code if the getfield has been resolved | |
645 // and if we don't have a null-pointer exception => check for | |
646 // these conditions first and use slow path if necessary. | |
647 Label slow_path; | |
648 // If we need a safepoint check, generate full interpreter entry. | |
649 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
650 SafepointSynchronize::_not_synchronized); | |
651 | |
652 __ jcc(Assembler::notEqual, slow_path); | |
653 // rbx: method | |
654 __ movptr(rax, Address(rsp, wordSize)); | |
655 | |
656 // check if local 0 != NULL and read field | |
657 __ testptr(rax, rax); | |
658 __ jcc(Assembler::zero, slow_path); | |
659 | |
660 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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661 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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662 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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663 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
304 | 664 // Shift codes right to get the index on the right. |
665 // The bytecode fetched looks like <index><0xb4><0x2a> | |
666 __ shrl(rdx, 2 * BitsPerByte); | |
667 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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668 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
304 | 669 |
670 // rax: local 0 | |
671 // rbx: method | |
672 // rdx: constant pool cache index | |
673 // rdi: constant pool cache | |
674 | |
675 // check if getfield has been resolved and read constant pool cache entry | |
676 // check the validity of the cache entry by testing whether _indices field | |
677 // contains Bytecode::_getfield in b1 byte. | |
678 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
679 "adjust shift below"); | |
680 __ movl(rcx, | |
681 Address(rdi, | |
682 rdx, | |
683 Address::times_8, | |
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684 ConstantPoolCache::base_offset() + |
304 | 685 ConstantPoolCacheEntry::indices_offset())); |
686 __ shrl(rcx, 2 * BitsPerByte); | |
687 __ andl(rcx, 0xFF); | |
688 __ cmpl(rcx, Bytecodes::_getfield); | |
689 __ jcc(Assembler::notEqual, slow_path); | |
690 | |
691 // Note: constant pool entry is not valid before bytecode is resolved | |
692 __ movptr(rcx, | |
693 Address(rdi, | |
694 rdx, | |
695 Address::times_8, | |
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696 ConstantPoolCache::base_offset() + |
304 | 697 ConstantPoolCacheEntry::f2_offset())); |
698 // edx: flags | |
699 __ movl(rdx, | |
700 Address(rdi, | |
701 rdx, | |
702 Address::times_8, | |
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703 ConstantPoolCache::base_offset() + |
304 | 704 ConstantPoolCacheEntry::flags_offset())); |
705 | |
706 Label notObj, notInt, notByte, notShort; | |
707 const Address field_address(rax, rcx, Address::times_1); | |
708 | |
709 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
710 // because they are different sizes. | |
711 // Use the type from the constant pool cache | |
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712 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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713 // Make sure we don't need to mask edx after the above shift |
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714 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 715 |
716 __ cmpl(rdx, atos); | |
717 __ jcc(Assembler::notEqual, notObj); | |
718 // atos | |
719 __ load_heap_oop(rax, field_address); | |
720 __ jmp(xreturn_path); | |
721 | |
722 __ bind(notObj); | |
723 __ cmpl(rdx, itos); | |
724 __ jcc(Assembler::notEqual, notInt); | |
725 // itos | |
726 __ movl(rax, field_address); | |
727 __ jmp(xreturn_path); | |
728 | |
729 __ bind(notInt); | |
730 __ cmpl(rdx, btos); | |
731 __ jcc(Assembler::notEqual, notByte); | |
732 // btos | |
733 __ load_signed_byte(rax, field_address); | |
734 __ jmp(xreturn_path); | |
735 | |
736 __ bind(notByte); | |
737 __ cmpl(rdx, stos); | |
738 __ jcc(Assembler::notEqual, notShort); | |
739 // stos | |
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740 __ load_signed_short(rax, field_address); |
304 | 741 __ jmp(xreturn_path); |
742 | |
743 __ bind(notShort); | |
744 #ifdef ASSERT | |
745 Label okay; | |
746 __ cmpl(rdx, ctos); | |
747 __ jcc(Assembler::equal, okay); | |
748 __ stop("what type is this?"); | |
749 __ bind(okay); | |
750 #endif | |
751 // ctos | |
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752 __ load_unsigned_short(rax, field_address); |
304 | 753 |
754 __ bind(xreturn_path); | |
755 | |
756 // _ireturn/_areturn | |
757 __ pop(rdi); | |
758 __ mov(rsp, r13); | |
759 __ jmp(rdi); | |
760 __ ret(0); | |
761 | |
762 // generate a vanilla interpreter entry as the slow path | |
763 __ bind(slow_path); | |
764 (void) generate_normal_entry(false); | |
765 } else { | |
766 (void) generate_normal_entry(false); | |
767 } | |
768 | |
769 return entry_point; | |
770 } | |
771 | |
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772 // Method entry for java.lang.ref.Reference.get. |
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773 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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774 #if INCLUDE_ALL_GCS |
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
775 // Code: _aload_0, _getfield, _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
776 // parameter size = 1 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
777 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
778 // The code that gets generated by this routine is split into 2 parts: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
779 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
780 // 2. The slow path - which is an expansion of the regular method entry. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
781 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
782 // Notes:- |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
783 // * In the G1 code we do not check whether we need to block for |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
784 // a safepoint. If G1 is enabled then we must execute the specialized |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
785 // code for Reference.get (except when the Reference object is null) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
786 // so that we can log the value in the referent field with an SATB |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
787 // update buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
788 // If the code for the getfield template is modified so that the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
789 // G1 pre-barrier code is executed when the current method is |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
790 // Reference.get() then going through the normal method entry |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
791 // will be fine. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
792 // * The G1 code can, however, check the receiver object (the instance |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
793 // of java.lang.Reference) and jump to the slow path if null. If the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
794 // Reference object is null then we obviously cannot fetch the referent |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
795 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
796 // regular method entry code to generate the NPE. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
797 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
798 // This code is based on generate_accessor_enty. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
799 // |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
800 // rbx: Method* |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
801 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
802 // r13: senderSP must preserve for slow path, set SP to it on fast path |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
803 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
804 address entry = __ pc(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
805 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
806 const int referent_offset = java_lang_ref_Reference::referent_offset; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
807 guarantee(referent_offset > 0, "referent offset not initialized"); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
808 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
809 if (UseG1GC) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
810 Label slow_path; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
811 // rbx: method |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
812 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
813 // Check if local 0 != NULL |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
814 // If the receiver is null then it is OK to jump to the slow path. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
815 __ movptr(rax, Address(rsp, wordSize)); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
816 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
817 __ testptr(rax, rax); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
818 __ jcc(Assembler::zero, slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
819 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
820 // rax: local 0 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
821 // rbx: method (but can be used as scratch now) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
822 // rdx: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
823 // rdi: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
824 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
825 // Generate the G1 pre-barrier code to log the value of |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
826 // the referent field in an SATB buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
827 |
e1162778c1c8
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johnc
parents:
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diff
changeset
|
828 // Load the value of the referent field. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
829 const Address field_address(rax, referent_offset); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
830 __ load_heap_oop(rax, field_address); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
831 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff
changeset
|
832 // Generate the G1 pre-barrier code to log the value of |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
833 // the referent field in an SATB buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
834 __ g1_write_barrier_pre(noreg /* obj */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
835 rax /* pre_val */, |
e1162778c1c8
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johnc
parents:
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diff
changeset
|
836 r15_thread /* thread */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
837 rbx /* tmp */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
838 true /* tosca_live */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
839 true /* expand_call */); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
840 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
841 // _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff
changeset
|
842 __ pop(rdi); // get return address |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
843 __ mov(rsp, r13); // set sp to sender sp |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
844 __ jmp(rdi); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
845 __ ret(0); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
846 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
847 // generate a vanilla interpreter entry as the slow path |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
848 __ bind(slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
849 (void) generate_normal_entry(false); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
850 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
851 return entry; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
852 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7402
diff
changeset
|
853 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
854 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
855 // If G1 is not enabled then attempt to go through the accessor entry point |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
856 // Reference.get is an accessor |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
857 return generate_accessor_entry(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
858 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
859 |
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
860 #ifdef GRAAL |
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
861 |
9025
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
862 // Interpreter stub for calling a compiled method with 3 object arguments |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
863 address InterpreterGenerator::generate_execute_compiled_method_entry() { |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
864 address entry_point = __ pc(); |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
865 |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
866 // Pick up the return address |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
867 __ movptr(rax, Address(rsp, 0)); |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
868 |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
869 // Must preserve original SP for loading incoming arguments because |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
870 // we need to align the outgoing SP for compiled code. |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
871 __ movptr(r11, rsp); |
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
872 |
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
873 // Move first object argument from interpreter calling convention to compiled |
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
874 // code calling convention. |
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
875 __ movq(j_rarg0, Address(r11, Interpreter::stackElementSize*4)); |
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
876 |
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
877 // Move second object argument. |
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
878 __ movq(j_rarg1, Address(r11, Interpreter::stackElementSize*3)); |
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
879 |
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
880 // Move third object argument. |
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
881 __ movq(j_rarg2, Address(r11, Interpreter::stackElementSize*2)); |
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
882 |
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
883 // Load the raw pointer to the HotSpotInstalledCode object. |
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
884 __ movq(j_rarg3, Address(r11, Interpreter::stackElementSize)); |
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
885 |
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886 // Load the nmethod pointer from the HotSpotInstalledCode object |
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887 __ movq(j_rarg3, Address(j_rarg3, sizeof(oopDesc))); |
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888 |
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889 // Check whether the nmethod was invalidated |
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890 __ testq(j_rarg3, j_rarg3); |
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891 Label invalid_nmethod; |
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892 __ jcc(Assembler::zero, invalid_nmethod); |
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893 |
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894 // Ensure compiled code always sees stack at proper alignment |
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895 __ andptr(rsp, -16); |
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896 |
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897 // push the return address and misalign the stack that youngest frame always sees |
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898 // as far as the placement of the call instruction |
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899 __ push(rax); |
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900 |
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901 // Perform a tail call to the verified entry point of the nmethod. |
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902 __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset())); |
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903 |
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904 __ bind(invalid_nmethod); |
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905 |
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906 // pop return address, reset last_sp to NULL |
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907 __ empty_expression_stack(); |
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908 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
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909 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
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910 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_InvalidInstalledCodeException)); |
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911 // the call_VM checks for exception, so we should never return here. |
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912 __ should_not_reach_here(); |
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913 |
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914 return entry_point; |
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915 } |
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916 |
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917 #endif |
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918 |
0 | 919 // Interpreter stub for calling a native method. (asm interpreter) |
920 // This sets up a somewhat different looking stack for calling the | |
921 // native method than the typical interpreter frame setup. | |
922 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
923 // determine code generation flags | |
924 bool inc_counter = UseCompiler || CountCompiledCalls; | |
925 | |
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926 // rbx: Method* |
0 | 927 // r13: sender sp |
928 | |
929 address entry_point = __ pc(); | |
930 | |
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931 const Address constMethod (rbx, Method::const_offset()); |
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932 const Address access_flags (rbx, Method::access_flags_offset()); |
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933 const Address size_of_parameters(rcx, ConstMethod:: |
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934 size_of_parameters_offset()); |
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935 |
0 | 936 |
937 // get parameter size (always needed) | |
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938 __ movptr(rcx, constMethod); |
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939 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 940 |
941 // native calls don't need the stack size check since they have no | |
942 // expression stack and the arguments are already on the stack and | |
943 // we only add a handful of words to the stack | |
944 | |
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945 // rbx: Method* |
0 | 946 // rcx: size of parameters |
947 // r13: sender sp | |
304 | 948 __ pop(rax); // get return address |
0 | 949 |
950 // for natives the size of locals is zero | |
951 | |
952 // compute beginning of parameters (r14) | |
304 | 953 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 954 |
955 // add 2 zero-initialized slots for native calls | |
956 // initialize result_handler slot | |
304 | 957 __ push((int) NULL_WORD); |
0 | 958 // slot for oop temp |
959 // (static native method holder mirror/jni oop result) | |
304 | 960 __ push((int) NULL_WORD); |
0 | 961 |
962 // initialize fixed part of activation frame | |
963 generate_fixed_frame(true); | |
964 | |
965 // make sure method is native & not abstract | |
966 #ifdef ASSERT | |
967 __ movl(rax, access_flags); | |
968 { | |
969 Label L; | |
970 __ testl(rax, JVM_ACC_NATIVE); | |
971 __ jcc(Assembler::notZero, L); | |
972 __ stop("tried to execute non-native method as native"); | |
973 __ bind(L); | |
974 } | |
975 { | |
976 Label L; | |
977 __ testl(rax, JVM_ACC_ABSTRACT); | |
978 __ jcc(Assembler::zero, L); | |
979 __ stop("tried to execute abstract method in interpreter"); | |
980 __ bind(L); | |
981 } | |
982 #endif | |
983 | |
984 // Since at this point in the method invocation the exception handler | |
985 // would try to exit the monitor of synchronized methods which hasn't | |
986 // been entered yet, we set the thread local variable | |
987 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
988 // check this flag. | |
989 | |
990 const Address do_not_unlock_if_synchronized(r15_thread, | |
991 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
992 __ movbool(do_not_unlock_if_synchronized, true); | |
993 | |
994 // increment invocation count & check for overflow | |
995 Label invocation_counter_overflow; | |
996 if (inc_counter) { | |
997 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
998 } | |
999 | |
1000 Label continue_after_compile; | |
1001 __ bind(continue_after_compile); | |
1002 | |
1003 bang_stack_shadow_pages(true); | |
1004 | |
1005 // reset the _do_not_unlock_if_synchronized flag | |
1006 __ movbool(do_not_unlock_if_synchronized, false); | |
1007 | |
1008 // check for synchronized methods | |
1009 // Must happen AFTER invocation_counter check and stack overflow check, | |
1010 // so method is not locked if overflows. | |
1011 if (synchronized) { | |
1012 lock_method(); | |
1013 } else { | |
1014 // no synchronization necessary | |
1015 #ifdef ASSERT | |
1016 { | |
1017 Label L; | |
1018 __ movl(rax, access_flags); | |
1019 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1020 __ jcc(Assembler::zero, L); | |
1021 __ stop("method needs synchronization"); | |
1022 __ bind(L); | |
1023 } | |
1024 #endif | |
1025 } | |
1026 | |
1027 // start execution | |
1028 #ifdef ASSERT | |
1029 { | |
1030 Label L; | |
1031 const Address monitor_block_top(rbp, | |
1032 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1033 __ movptr(rax, monitor_block_top); |
1034 __ cmpptr(rax, rsp); | |
0 | 1035 __ jcc(Assembler::equal, L); |
1036 __ stop("broken stack frame setup in interpreter"); | |
1037 __ bind(L); | |
1038 } | |
1039 #endif | |
1040 | |
1041 // jvmti support | |
1042 __ notify_method_entry(); | |
1043 | |
1044 // work registers | |
1045 const Register method = rbx; | |
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1046 const Register t = r11; |
0 | 1047 |
1048 // allocate space for parameters | |
1049 __ get_method(method); | |
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1050 __ movptr(t, Address(method, Method::const_offset())); |
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1051 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
1506 | 1052 __ shll(t, Interpreter::logStackElementSize); |
0 | 1053 |
304 | 1054 __ subptr(rsp, t); |
1055 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
605 | 1056 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
0 | 1057 |
1058 // get signature handler | |
1059 { | |
1060 Label L; | |
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1061 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1062 __ testptr(t, t); |
0 | 1063 __ jcc(Assembler::notZero, L); |
1064 __ call_VM(noreg, | |
1065 CAST_FROM_FN_PTR(address, | |
1066 InterpreterRuntime::prepare_native_call), | |
1067 method); | |
1068 __ get_method(method); | |
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1069 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1070 __ bind(L); |
1071 } | |
1072 | |
1073 // call signature handler | |
1074 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
1075 "adjust this code"); | |
1076 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
1077 "adjust this code"); | |
1078 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
1079 "adjust this code"); | |
1080 | |
1081 // The generated handlers do not touch RBX (the method oop). | |
1082 // However, large signatures cannot be cached and are generated | |
1083 // each time here. The slow-path generator can do a GC on return, | |
1084 // so we must reload it after the call. | |
1085 __ call(t); | |
1086 __ get_method(method); // slow path can do a GC, reload RBX | |
1087 | |
1088 | |
1089 // result handler is in rax | |
1090 // set result handler | |
304 | 1091 __ movptr(Address(rbp, |
1092 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
1093 rax); | |
0 | 1094 |
1095 // pass mirror handle if static call | |
1096 { | |
1097 Label L; | |
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1098 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1099 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1100 __ testl(t, JVM_ACC_STATIC); |
1101 __ jcc(Assembler::zero, L); | |
1102 // get mirror | |
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1103 __ movptr(t, Address(method, Method::const_offset())); |
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1104 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1105 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1106 __ movptr(t, Address(t, mirror_offset)); |
0 | 1107 // copy mirror into activation frame |
304 | 1108 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
0 | 1109 t); |
1110 // pass handle to mirror | |
304 | 1111 __ lea(c_rarg1, |
1112 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
0 | 1113 __ bind(L); |
1114 } | |
1115 | |
1116 // get native function entry point | |
1117 { | |
1118 Label L; | |
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1119 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1120 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
1121 __ movptr(rscratch2, unsatisfied.addr()); | |
304 | 1122 __ cmpptr(rax, rscratch2); |
0 | 1123 __ jcc(Assembler::notEqual, L); |
1124 __ call_VM(noreg, | |
1125 CAST_FROM_FN_PTR(address, | |
1126 InterpreterRuntime::prepare_native_call), | |
1127 method); | |
1128 __ get_method(method); | |
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1129 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1130 __ bind(L); |
1131 } | |
1132 | |
1133 // pass JNIEnv | |
304 | 1134 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
0 | 1135 |
1136 // It is enough that the pc() points into the right code | |
1137 // segment. It does not have to be the correct return pc. | |
1138 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
1139 | |
1140 // change thread state | |
1141 #ifdef ASSERT | |
1142 { | |
1143 Label L; | |
1144 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
1145 __ cmpl(t, _thread_in_Java); | |
1146 __ jcc(Assembler::equal, L); | |
1147 __ stop("Wrong thread state in native stub"); | |
1148 __ bind(L); | |
1149 } | |
1150 #endif | |
1151 | |
1152 // Change state to native | |
1153 | |
1154 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1155 _thread_in_native); | |
1156 | |
1157 // Call the native method. | |
1158 __ call(rax); | |
1159 // result potentially in rax or xmm0 | |
1160 | |
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1161 // Verify or restore cpu control state after JNI call |
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1162 __ restore_cpu_control_state_after_jni(); |
0 | 1163 |
1164 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
1165 // in order to extract the result of a method call. If the order of these | |
1166 // pushes change or anything else is added to the stack then the code in | |
1167 // interpreter_frame_result must also change. | |
1168 | |
1169 __ push(dtos); | |
1170 __ push(ltos); | |
1171 | |
1172 // change thread state | |
1173 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
1174 _thread_in_native_trans); | |
1175 | |
1176 if (os::is_MP()) { | |
1177 if (UseMembar) { | |
1178 // Force this write out before the read below | |
1179 __ membar(Assembler::Membar_mask_bits( | |
1180 Assembler::LoadLoad | Assembler::LoadStore | | |
1181 Assembler::StoreLoad | Assembler::StoreStore)); | |
1182 } else { | |
1183 // Write serialization page so VM thread can do a pseudo remote membar. | |
1184 // We use the current thread pointer to calculate a thread specific | |
1185 // offset to write to within the page. This minimizes bus traffic | |
1186 // due to cache line collision. | |
1187 __ serialize_memory(r15_thread, rscratch2); | |
1188 } | |
1189 } | |
1190 | |
1191 // check for safepoint operation in progress and/or pending suspend requests | |
1192 { | |
1193 Label Continue; | |
1194 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1195 SafepointSynchronize::_not_synchronized); | |
1196 | |
1197 Label L; | |
1198 __ jcc(Assembler::notEqual, L); | |
1199 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1200 __ jcc(Assembler::equal, Continue); | |
1201 __ bind(L); | |
1202 | |
1203 // Don't use call_VM as it will see a possible pending exception | |
1204 // and forward it and never return here preventing us from | |
1205 // clearing _last_native_pc down below. Also can't use | |
1206 // call_VM_leaf either as it will check to see if r13 & r14 are | |
1207 // preserved and correspond to the bcp/locals pointers. So we do a | |
1208 // runtime call by hand. | |
1209 // | |
304 | 1210 __ mov(c_rarg0, r15_thread); |
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1211 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1212 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1213 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1214 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
304 | 1215 __ mov(rsp, r12); // restore sp |
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1216 __ reinit_heapbase(); |
0 | 1217 __ bind(Continue); |
1218 } | |
1219 | |
1220 // change thread state | |
1221 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1222 | |
1223 // reset_last_Java_frame | |
1224 __ reset_last_Java_frame(true, true); | |
1225 | |
1226 // reset handle block | |
304 | 1227 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
1228 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
0 | 1229 |
1230 // If result is an oop unbox and store it in frame where gc will see it | |
1231 // and result handler will pick it up | |
1232 | |
1233 { | |
1234 Label no_oop, store_result; | |
1235 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
304 | 1236 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1237 __ jcc(Assembler::notEqual, no_oop); |
1238 // retrieve result | |
1239 __ pop(ltos); | |
304 | 1240 __ testptr(rax, rax); |
0 | 1241 __ jcc(Assembler::zero, store_result); |
304 | 1242 __ movptr(rax, Address(rax, 0)); |
0 | 1243 __ bind(store_result); |
304 | 1244 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
0 | 1245 // keep stack depth as expected by pushing oop which will eventually be discarde |
1246 __ push(ltos); | |
1247 __ bind(no_oop); | |
1248 } | |
1249 | |
1250 | |
1251 { | |
1252 Label no_reguard; | |
1253 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
1254 JavaThread::stack_guard_yellow_disabled); | |
1255 __ jcc(Assembler::notEqual, no_reguard); | |
1256 | |
304 | 1257 __ pusha(); // XXX only save smashed registers |
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1258 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 1259 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
1260 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 1261 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1262 __ mov(rsp, r12); // restore sp |
1263 __ popa(); // XXX only restore smashed registers | |
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1264 __ reinit_heapbase(); |
0 | 1265 |
1266 __ bind(no_reguard); | |
1267 } | |
1268 | |
1269 | |
1270 // The method register is junk from after the thread_in_native transition | |
1271 // until here. Also can't call_VM until the bcp has been | |
1272 // restored. Need bcp for throwing exception below so get it now. | |
1273 __ get_method(method); | |
1274 | |
1275 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
1276 // r13 == code_base() | |
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1277 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1278 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
0 | 1279 // handle exceptions (exception handling will handle unlocking!) |
1280 { | |
1281 Label L; | |
304 | 1282 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
0 | 1283 __ jcc(Assembler::zero, L); |
1284 // Note: At some point we may want to unify this with the code | |
1285 // used in call_VM_base(); i.e., we should use the | |
1286 // StubRoutines::forward_exception code. For now this doesn't work | |
1287 // here because the rsp is not correctly set at this point. | |
1288 __ MacroAssembler::call_VM(noreg, | |
1289 CAST_FROM_FN_PTR(address, | |
1290 InterpreterRuntime::throw_pending_exception)); | |
1291 __ should_not_reach_here(); | |
1292 __ bind(L); | |
1293 } | |
1294 | |
1295 // do unlocking if necessary | |
1296 { | |
1297 Label L; | |
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1298 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1299 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1300 __ jcc(Assembler::zero, L); | |
1301 // the code below should be shared with interpreter macro | |
1302 // assembler implementation | |
1303 { | |
1304 Label unlock; | |
1305 // BasicObjectLock will be first in list, since this is a | |
1306 // synchronized method. However, need to check that the object | |
1307 // has not been unlocked by an explicit monitorexit bytecode. | |
1308 const Address monitor(rbp, | |
1309 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
1310 wordSize - sizeof(BasicObjectLock))); | |
1311 | |
1312 // monitor expect in c_rarg1 for slow unlock path | |
304 | 1313 __ lea(c_rarg1, monitor); // address of first monitor |
0 | 1314 |
304 | 1315 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
1316 __ testptr(t, t); | |
0 | 1317 __ jcc(Assembler::notZero, unlock); |
1318 | |
1319 // Entry already unlocked, need to throw exception | |
1320 __ MacroAssembler::call_VM(noreg, | |
1321 CAST_FROM_FN_PTR(address, | |
1322 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1323 __ should_not_reach_here(); | |
1324 | |
1325 __ bind(unlock); | |
1326 __ unlock_object(c_rarg1); | |
1327 } | |
1328 __ bind(L); | |
1329 } | |
1330 | |
1331 // jvmti support | |
1332 // Note: This must happen _after_ handling/throwing any exceptions since | |
1333 // the exception handler code notifies the runtime of method exits | |
1334 // too. If this happens before, method entry/exit notifications are | |
1335 // not properly paired (was bug - gri 11/22/99). | |
1336 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1337 | |
1338 // restore potential result in edx:eax, call result handler to | |
1339 // restore potential result in ST0 & handle result | |
1340 | |
1341 __ pop(ltos); | |
1342 __ pop(dtos); | |
1343 | |
304 | 1344 __ movptr(t, Address(rbp, |
1345 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
0 | 1346 __ call(t); |
1347 | |
1348 // remove activation | |
304 | 1349 __ movptr(t, Address(rbp, |
1350 frame::interpreter_frame_sender_sp_offset * | |
1351 wordSize)); // get sender sp | |
0 | 1352 __ leave(); // remove frame anchor |
304 | 1353 __ pop(rdi); // get return address |
1354 __ mov(rsp, t); // set sp to sender sp | |
0 | 1355 __ jmp(rdi); |
1356 | |
1357 if (inc_counter) { | |
1358 // Handle overflow of counter and compile method | |
1359 __ bind(invocation_counter_overflow); | |
1360 generate_counter_overflow(&continue_after_compile); | |
1361 } | |
1362 | |
1363 return entry_point; | |
1364 } | |
1365 | |
1366 // | |
1367 // Generic interpreted method entry to (asm) interpreter | |
1368 // | |
1369 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1370 // determine code generation flags | |
1371 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1372 | |
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1373 // ebx: Method* |
0 | 1374 // r13: sender sp |
1375 address entry_point = __ pc(); | |
1376 | |
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1377 const Address constMethod(rbx, Method::const_offset()); |
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1378 const Address access_flags(rbx, Method::access_flags_offset()); |
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1379 const Address size_of_parameters(rdx, |
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1380 ConstMethod::size_of_parameters_offset()); |
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1381 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1382 |
0 | 1383 |
1384 // get parameter size (always needed) | |
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1385 __ movptr(rdx, constMethod); |
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1386 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1387 |
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1388 // rbx: Method* |
0 | 1389 // rcx: size of parameters |
1390 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1391 | |
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1392 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1393 __ subl(rdx, rcx); // rdx = no. of additional locals |
1394 | |
1395 // YYY | |
1396 // __ incrementl(rdx); | |
1397 // __ andl(rdx, -2); | |
1398 | |
1399 // see if we've got enough room on the stack for locals plus overhead. | |
1400 generate_stack_overflow_check(); | |
1401 | |
1402 // get return address | |
304 | 1403 __ pop(rax); |
0 | 1404 |
1405 // compute beginning of parameters (r14) | |
304 | 1406 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
0 | 1407 |
1408 // rdx - # of additional locals | |
1409 // allocate space for locals | |
1410 // explicitly initialize locals | |
1411 { | |
1412 Label exit, loop; | |
1413 __ testl(rdx, rdx); | |
1414 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1415 __ bind(loop); | |
304 | 1416 __ push((int) NULL_WORD); // initialize local variables |
0 | 1417 __ decrementl(rdx); // until everything initialized |
1418 __ jcc(Assembler::greater, loop); | |
1419 __ bind(exit); | |
1420 } | |
1421 | |
1422 // initialize fixed part of activation frame | |
1423 generate_fixed_frame(false); | |
1424 | |
1425 // make sure method is not native & not abstract | |
1426 #ifdef ASSERT | |
1427 __ movl(rax, access_flags); | |
1428 { | |
1429 Label L; | |
1430 __ testl(rax, JVM_ACC_NATIVE); | |
1431 __ jcc(Assembler::zero, L); | |
1432 __ stop("tried to execute native method as non-native"); | |
1433 __ bind(L); | |
1434 } | |
1435 { | |
1436 Label L; | |
1437 __ testl(rax, JVM_ACC_ABSTRACT); | |
1438 __ jcc(Assembler::zero, L); | |
1439 __ stop("tried to execute abstract method in interpreter"); | |
1440 __ bind(L); | |
1441 } | |
1442 #endif | |
1443 | |
1444 // Since at this point in the method invocation the exception | |
1445 // handler would try to exit the monitor of synchronized methods | |
1446 // which hasn't been entered yet, we set the thread local variable | |
1447 // _do_not_unlock_if_synchronized to true. The remove_activation | |
1448 // will check this flag. | |
1449 | |
1450 const Address do_not_unlock_if_synchronized(r15_thread, | |
1451 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1452 __ movbool(do_not_unlock_if_synchronized, true); | |
1453 | |
1454 // increment invocation count & check for overflow | |
1455 Label invocation_counter_overflow; | |
1456 Label profile_method; | |
1457 Label profile_method_continue; | |
1458 if (inc_counter) { | |
1459 generate_counter_incr(&invocation_counter_overflow, | |
1460 &profile_method, | |
1461 &profile_method_continue); | |
1462 if (ProfileInterpreter) { | |
1463 __ bind(profile_method_continue); | |
1464 } | |
1465 } | |
1466 | |
1467 Label continue_after_compile; | |
1468 __ bind(continue_after_compile); | |
1469 | |
1470 // check for synchronized interpreted methods | |
1471 bang_stack_shadow_pages(false); | |
1472 | |
1473 // reset the _do_not_unlock_if_synchronized flag | |
1474 __ movbool(do_not_unlock_if_synchronized, false); | |
1475 | |
1476 // check for synchronized methods | |
1477 // Must happen AFTER invocation_counter check and stack overflow check, | |
1478 // so method is not locked if overflows. | |
1479 if (synchronized) { | |
1480 // Allocate monitor and lock method | |
1481 lock_method(); | |
1482 } else { | |
1483 // no synchronization necessary | |
1484 #ifdef ASSERT | |
1485 { | |
1486 Label L; | |
1487 __ movl(rax, access_flags); | |
1488 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1489 __ jcc(Assembler::zero, L); | |
1490 __ stop("method needs synchronization"); | |
1491 __ bind(L); | |
1492 } | |
1493 #endif | |
1494 } | |
1495 | |
1496 // start execution | |
1497 #ifdef ASSERT | |
1498 { | |
1499 Label L; | |
1500 const Address monitor_block_top (rbp, | |
1501 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1502 __ movptr(rax, monitor_block_top); |
1503 __ cmpptr(rax, rsp); | |
0 | 1504 __ jcc(Assembler::equal, L); |
1505 __ stop("broken stack frame setup in interpreter"); | |
1506 __ bind(L); | |
1507 } | |
1508 #endif | |
1509 | |
1510 // jvmti support | |
1511 __ notify_method_entry(); | |
1512 | |
1513 __ dispatch_next(vtos); | |
1514 | |
1515 // invocation counter overflow | |
1516 if (inc_counter) { | |
1517 if (ProfileInterpreter) { | |
1518 // We have decided to profile this method in the interpreter | |
1519 __ bind(profile_method); | |
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1520 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1521 __ set_method_data_pointer_for_bcp(); |
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1522 __ get_method(rbx); |
0 | 1523 __ jmp(profile_method_continue); |
1524 } | |
1525 // Handle overflow of counter and compile method | |
1526 __ bind(invocation_counter_overflow); | |
1527 generate_counter_overflow(&continue_after_compile); | |
1528 } | |
1529 | |
1530 return entry_point; | |
1531 } | |
1532 | |
1533 // Entry points | |
1534 // | |
1535 // Here we generate the various kind of entries into the interpreter. | |
1536 // The two main entry type are generic bytecode methods and native | |
1537 // call method. These both come in synchronized and non-synchronized | |
1538 // versions but the frame layout they create is very similar. The | |
1539 // other method entry types are really just special purpose entries | |
1540 // that are really entry and interpretation all in one. These are for | |
1541 // trivial methods like accessor, empty, or special math methods. | |
1542 // | |
1543 // When control flow reaches any of the entry types for the interpreter | |
1544 // the following holds -> | |
1545 // | |
1546 // Arguments: | |
1547 // | |
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1548 // rbx: Method* |
0 | 1549 // |
1550 // Stack layout immediately at entry | |
1551 // | |
1552 // [ return address ] <--- rsp | |
1553 // [ parameter n ] | |
1554 // ... | |
1555 // [ parameter 1 ] | |
1556 // [ expression stack ] (caller's java expression stack) | |
1557 | |
1558 // Assuming that we don't go to one of the trivial specialized entries | |
1559 // the stack will look like below when we are ready to execute the | |
1560 // first bytecode (or call the native routine). The register usage | |
1561 // will be as the template based interpreter expects (see | |
1562 // interpreter_amd64.hpp). | |
1563 // | |
1564 // local variables follow incoming parameters immediately; i.e. | |
1565 // the return address is moved to the end of the locals). | |
1566 // | |
1567 // [ monitor entry ] <--- rsp | |
1568 // ... | |
1569 // [ monitor entry ] | |
1570 // [ expr. stack bottom ] | |
1571 // [ saved r13 ] | |
1572 // [ current r14 ] | |
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1573 // [ Method* ] |
0 | 1574 // [ saved ebp ] <--- rbp |
1575 // [ return address ] | |
1576 // [ local variable m ] | |
1577 // ... | |
1578 // [ local variable 1 ] | |
1579 // [ parameter n ] | |
1580 // ... | |
1581 // [ parameter 1 ] <--- r14 | |
1582 | |
1583 address AbstractInterpreterGenerator::generate_method_entry( | |
1584 AbstractInterpreter::MethodKind kind) { | |
1585 // determine code generation flags | |
1586 bool synchronized = false; | |
1587 address entry_point = NULL; | |
1588 | |
1589 switch (kind) { | |
1590 case Interpreter::zerolocals : break; | |
1591 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
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1592 #ifdef GRAAL |
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1593 case Interpreter::execute_compiled_method: entry_point = ((InterpreterGenerator*)this)->generate_execute_compiled_method_entry(); break; |
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1594 #endif |
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1595 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; |
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1596 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; |
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1597 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
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1598 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; |
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1599 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; |
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1600 |
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1601 case Interpreter::java_lang_math_sin : // fall thru |
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1602 case Interpreter::java_lang_math_cos : // fall thru |
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1603 case Interpreter::java_lang_math_tan : // fall thru |
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1604 case Interpreter::java_lang_math_abs : // fall thru |
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1605 case Interpreter::java_lang_math_log : // fall thru |
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1606 case Interpreter::java_lang_math_log10 : // fall thru |
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1607 case Interpreter::java_lang_math_sqrt : // fall thru |
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1608 case Interpreter::java_lang_math_pow : // fall thru |
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1609 case Interpreter::java_lang_math_exp : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break; |
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1610 case Interpreter::java_lang_ref_reference_get |
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1611 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
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1612 default: |
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1613 fatal(err_msg("unexpected method kind: %d", kind)); |
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1614 break; |
0 | 1615 } |
1616 | |
1617 if (entry_point) { | |
1618 return entry_point; | |
1619 } | |
1620 | |
1621 return ((InterpreterGenerator*) this)-> | |
1622 generate_normal_entry(synchronized); | |
1623 } | |
1624 | |
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1625 // These should never be compiled since the interpreter will prefer |
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1626 // the compiled version to the intrinsic version. |
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1627 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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1628 switch (method_kind(m)) { |
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1629 case Interpreter::java_lang_math_sin : // fall thru |
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1630 case Interpreter::java_lang_math_cos : // fall thru |
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1631 case Interpreter::java_lang_math_tan : // fall thru |
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1632 case Interpreter::java_lang_math_abs : // fall thru |
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1633 case Interpreter::java_lang_math_log : // fall thru |
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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 |
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1636 case Interpreter::java_lang_math_pow : // fall thru |
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1637 case Interpreter::java_lang_math_exp : |
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1638 return false; |
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1639 default: |
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1640 return true; |
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1641 } |
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1642 } |
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1643 |
0 | 1644 // How much stack a method activation needs in words. |
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1645 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1646 const int entry_size = frame::interpreter_frame_monitor_size(); |
1647 | |
1648 // total overhead size: entry_size + (saved rbp thru expr stack | |
1649 // bottom). be sure to change this if you add/subtract anything | |
1650 // to/from the overhead area | |
1651 const int overhead_size = | |
1652 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
1653 | |
1654 const int stub_code = frame::entry_frame_after_call_words; | |
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1655 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1656 Interpreter::stackElementWords; |
0 | 1657 return (overhead_size + method_stack + stub_code); |
1658 } | |
1659 | |
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1660 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1661 int tempcount, |
1662 int popframe_extra_args, | |
1663 int moncount, | |
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1664 int caller_actual_parameters, |
0 | 1665 int callee_param_count, |
1666 int callee_locals, | |
1667 frame* caller, | |
1668 frame* interpreter_frame, | |
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1669 bool is_top_frame, |
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1670 bool is_bottom_frame) { |
0 | 1671 // Note: This calculation must exactly parallel the frame setup |
1672 // in AbstractInterpreterGenerator::generate_method_entry. | |
1673 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1674 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
1675 // right size, as determined by a previous call to this method. | |
1676 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1677 | |
1678 // fixed size of an interpreter frame: | |
1506 | 1679 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1680 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1681 Interpreter::stackElementWords; |
0 | 1682 |
1683 int overhead = frame::sender_sp_offset - | |
1684 frame::interpreter_frame_initial_sp_offset; | |
1685 // Our locals were accounted for by the caller (or last_frame_adjust | |
1686 // on the transistion) Since the callee parameters already account | |
1687 // for the callee's params we only need to account for the extra | |
1688 // locals. | |
1689 int size = overhead + | |
1506 | 1690 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
0 | 1691 moncount * frame::interpreter_frame_monitor_size() + |
1506 | 1692 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
0 | 1693 if (interpreter_frame != NULL) { |
1694 #ifdef ASSERT | |
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1695 if (!EnableInvokeDynamic) |
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1696 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
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1697 // Probably, since deoptimization doesn't work yet. |
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1698 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1699 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1700 #endif | |
1701 | |
1702 interpreter_frame->interpreter_frame_set_method(method); | |
1703 // NOTE the difference in using sender_sp and | |
1704 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
1705 // the original sp of the caller (the unextended_sp) and | |
1706 // sender_sp is fp+16 XXX | |
1707 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1708 | |
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1709 #ifdef ASSERT |
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1710 if (caller->is_interpreted_frame()) { |
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1711 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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1712 } |
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1713 #endif |
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1714 |
0 | 1715 interpreter_frame->interpreter_frame_set_locals(locals); |
1716 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1717 BasicObjectLock* monbot = montop - moncount; | |
1718 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1719 | |
1720 // Set last_sp | |
1721 intptr_t* esp = (intptr_t*) monbot - | |
1506 | 1722 tempcount*Interpreter::stackElementWords - |
0 | 1723 popframe_extra_args; |
1724 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
1725 | |
1726 // All frames but the initial (oldest) interpreter frame we fill in have | |
1727 // a value for sender_sp that allows walking the stack but isn't | |
1728 // truly correct. Correct the value here. | |
1729 if (extra_locals != 0 && | |
1730 interpreter_frame->sender_sp() == | |
1731 interpreter_frame->interpreter_frame_sender_sp()) { | |
1732 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
1733 extra_locals); | |
1734 } | |
1735 *interpreter_frame->interpreter_frame_cache_addr() = | |
1736 method->constants()->cache(); | |
1737 } | |
1738 return size; | |
1739 } | |
1740 | |
1741 //----------------------------------------------------------------------------- | |
1742 // Exceptions | |
1743 | |
1744 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1745 // Entry point in previous activation (i.e., if the caller was | |
1746 // interpreted) | |
1747 Interpreter::_rethrow_exception_entry = __ pc(); | |
1748 // Restore sp to interpreter_frame_last_sp even though we are going | |
1749 // to empty the expression stack for the exception processing. | |
304 | 1750 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
0 | 1751 // rax: exception |
1752 // rdx: return address/pc that threw exception | |
1753 __ restore_bcp(); // r13 points to call/send | |
1754 __ restore_locals(); | |
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1755 __ reinit_heapbase(); // restore r12 as heapbase. |
0 | 1756 // Entry point for exceptions thrown within interpreter code |
1757 Interpreter::_throw_exception_entry = __ pc(); | |
1758 // expression stack is undefined here | |
1759 // rax: exception | |
1760 // r13: exception bcp | |
1761 __ verify_oop(rax); | |
304 | 1762 __ mov(c_rarg1, rax); |
0 | 1763 |
1764 // expression stack must be empty before entering the VM in case of | |
1765 // an exception | |
1766 __ empty_expression_stack(); | |
1767 // find exception handler address and preserve exception oop | |
1768 __ call_VM(rdx, | |
1769 CAST_FROM_FN_PTR(address, | |
1770 InterpreterRuntime::exception_handler_for_exception), | |
1771 c_rarg1); | |
1772 // rax: exception handler entry point | |
1773 // rdx: preserved exception oop | |
1774 // r13: bcp for exception handler | |
1775 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1776 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1777 | |
1778 // If the exception is not handled in the current frame the frame is | |
1779 // removed and the exception is rethrown (i.e. exception | |
1780 // continuation is _rethrow_exception). | |
1781 // | |
1782 // Note: At this point the bci is still the bxi for the instruction | |
1783 // which caused the exception and the expression stack is | |
1784 // empty. Thus, for any VM calls at this point, GC will find a legal | |
1785 // oop map (with empty expression stack). | |
1786 | |
1787 // In current activation | |
1788 // tos: exception | |
1789 // esi: exception bcp | |
1790 | |
1791 // | |
1792 // JVMTI PopFrame support | |
1793 // | |
1794 | |
1795 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1796 __ empty_expression_stack(); | |
1797 // Set the popframe_processing bit in pending_popframe_condition | |
1798 // indicating that we are currently handling popframe, so that | |
1799 // call_VMs that may happen later do not trigger new popframe | |
1800 // handling cycles. | |
1801 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
1802 __ orl(rdx, JavaThread::popframe_processing_bit); | |
1803 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
1804 | |
1805 { | |
1806 // Check to see whether we are returning to a deoptimized frame. | |
1807 // (The PopFrame call ensures that the caller of the popped frame is | |
1808 // either interpreted or compiled and deoptimizes it if compiled.) | |
1809 // In this case, we can't call dispatch_next() after the frame is | |
1810 // popped, but instead must save the incoming arguments and restore | |
1811 // them after deoptimization has occurred. | |
1812 // | |
1813 // Note that we don't compare the return PC against the | |
1814 // deoptimization blob's unpack entry because of the presence of | |
1815 // adapter frames in C2. | |
1816 Label caller_not_deoptimized; | |
304 | 1817 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1818 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1819 InterpreterRuntime::interpreter_contains), c_rarg1); | |
1820 __ testl(rax, rax); | |
1821 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1822 | |
1823 // Compute size of arguments for saving when returning to | |
1824 // deoptimized caller | |
1825 __ get_method(rax); | |
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1826 __ movptr(rax, Address(rax, Method::const_offset())); |
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1827 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
0 | 1828 size_of_parameters_offset()))); |
1506 | 1829 __ shll(rax, Interpreter::logStackElementSize); |
0 | 1830 __ restore_locals(); // XXX do we need this? |
304 | 1831 __ subptr(r14, rax); |
1832 __ addptr(r14, wordSize); | |
0 | 1833 // Save these arguments |
1834 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
1835 Deoptimization:: | |
1836 popframe_preserve_args), | |
1837 r15_thread, rax, r14); | |
1838 | |
1839 __ remove_activation(vtos, rdx, | |
1840 /* throw_monitor_exception */ false, | |
1841 /* install_monitor_exception */ false, | |
1842 /* notify_jvmdi */ false); | |
1843 | |
1844 // Inform deoptimization that it is responsible for restoring | |
1845 // these arguments | |
1846 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1847 JavaThread::popframe_force_deopt_reexecution_bit); | |
1848 | |
1849 // Continue in deoptimization handler | |
1850 __ jmp(rdx); | |
1851 | |
1852 __ bind(caller_not_deoptimized); | |
1853 } | |
1854 | |
1855 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
1856 /* throw_monitor_exception */ false, | |
1857 /* install_monitor_exception */ false, | |
1858 /* notify_jvmdi */ false); | |
1859 | |
1860 // Finish with popframe handling | |
1861 // A previous I2C followed by a deoptimization might have moved the | |
1862 // outgoing arguments further up the stack. PopFrame expects the | |
1863 // mutations to those outgoing arguments to be preserved and other | |
1864 // constraints basically require this frame to look exactly as | |
1865 // though it had previously invoked an interpreted activation with | |
1866 // no space between the top of the expression stack (current | |
1867 // last_sp) and the top of stack. Rather than force deopt to | |
1868 // maintain this kind of invariant all the time we call a small | |
1869 // fixup routine to move the mutated arguments onto the top of our | |
1870 // expression stack if necessary. | |
304 | 1871 __ mov(c_rarg1, rsp); |
1872 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
0 | 1873 // PC must point into interpreter here |
1874 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
1875 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
1876 __ reset_last_Java_frame(true, true); | |
1877 // Restore the last_sp and null it out | |
304 | 1878 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
1879 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
0 | 1880 |
1881 __ restore_bcp(); // XXX do we need this? | |
1882 __ restore_locals(); // XXX do we need this? | |
1883 // The method data pointer was incremented already during | |
1884 // call profiling. We have to restore the mdp for the current bcp. | |
1885 if (ProfileInterpreter) { | |
1886 __ set_method_data_pointer_for_bcp(); | |
1887 } | |
1888 | |
1889 // Clear the popframe condition flag | |
1890 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
1891 JavaThread::popframe_inactive); | |
1892 | |
1893 __ dispatch_next(vtos); | |
1894 // end of PopFrame support | |
1895 | |
1896 Interpreter::_remove_activation_entry = __ pc(); | |
1897 | |
1898 // preserve exception over this code sequence | |
1899 __ pop_ptr(rax); | |
304 | 1900 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
0 | 1901 // remove the activation (without doing throws on illegalMonitorExceptions) |
1902 __ remove_activation(vtos, rdx, false, true, false); | |
1903 // restore exception | |
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1904 __ get_vm_result(rax, r15_thread); |
0 | 1905 |
1906 // In between activations - previous activation type unknown yet | |
1907 // compute continuation point - the continuation point expects the | |
1908 // following registers set up: | |
1909 // | |
1910 // rax: exception | |
1911 // rdx: return address/pc that threw exception | |
1912 // rsp: expression stack of caller | |
1913 // rbp: ebp of caller | |
304 | 1914 __ push(rax); // save exception |
1915 __ push(rdx); // save return address | |
0 | 1916 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
1917 SharedRuntime::exception_handler_for_return_address), | |
1295 | 1918 r15_thread, rdx); |
304 | 1919 __ mov(rbx, rax); // save exception handler |
1920 __ pop(rdx); // restore return address | |
1921 __ pop(rax); // restore exception | |
0 | 1922 // Note that an "issuing PC" is actually the next PC after the call |
1923 __ jmp(rbx); // jump to exception | |
1924 // handler of caller | |
1925 } | |
1926 | |
1927 | |
1928 // | |
1929 // JVMTI ForceEarlyReturn support | |
1930 // | |
1931 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
1932 address entry = __ pc(); | |
1933 | |
1934 __ restore_bcp(); | |
1935 __ restore_locals(); | |
1936 __ empty_expression_stack(); | |
1937 __ load_earlyret_value(state); | |
1938 | |
304 | 1939 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
0 | 1940 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
1941 | |
1942 // Clear the earlyret state | |
1943 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
1944 | |
1945 __ remove_activation(state, rsi, | |
1946 false, /* throw_monitor_exception */ | |
1947 false, /* install_monitor_exception */ | |
1948 true); /* notify_jvmdi */ | |
1949 __ jmp(rsi); | |
1950 | |
1951 return entry; | |
1952 } // end of ForceEarlyReturn support | |
1953 | |
1954 | |
1955 //----------------------------------------------------------------------------- | |
1956 // Helper for vtos entry point generation | |
1957 | |
1958 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
1959 address& bep, | |
1960 address& cep, | |
1961 address& sep, | |
1962 address& aep, | |
1963 address& iep, | |
1964 address& lep, | |
1965 address& fep, | |
1966 address& dep, | |
1967 address& vep) { | |
1968 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
1969 Label L; | |
1970 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
1971 fep = __ pc(); __ push_f(); __ jmp(L); | |
1972 dep = __ pc(); __ push_d(); __ jmp(L); | |
1973 lep = __ pc(); __ push_l(); __ jmp(L); | |
1974 bep = cep = sep = | |
1975 iep = __ pc(); __ push_i(); | |
1976 vep = __ pc(); | |
1977 __ bind(L); | |
1978 generate_and_dispatch(t); | |
1979 } | |
1980 | |
1981 | |
1982 //----------------------------------------------------------------------------- | |
1983 // Generation of individual instructions | |
1984 | |
1985 // helpers for generate_and_dispatch | |
1986 | |
1987 | |
1988 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
1989 : TemplateInterpreterGenerator(code) { | |
1990 generate_all(); // down here so it can be "virtual" | |
1991 } | |
1992 | |
1993 //----------------------------------------------------------------------------- | |
1994 | |
1995 // Non-product code | |
1996 #ifndef PRODUCT | |
1997 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
1998 address entry = __ pc(); | |
1999 | |
2000 __ push(state); | |
304 | 2001 __ push(c_rarg0); |
2002 __ push(c_rarg1); | |
2003 __ push(c_rarg2); | |
2004 __ push(c_rarg3); | |
2005 __ mov(c_rarg2, rax); // Pass itos | |
0 | 2006 #ifdef _WIN64 |
2007 __ movflt(xmm3, xmm0); // Pass ftos | |
2008 #endif | |
2009 __ call_VM(noreg, | |
2010 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
2011 c_rarg1, c_rarg2, c_rarg3); | |
304 | 2012 __ pop(c_rarg3); |
2013 __ pop(c_rarg2); | |
2014 __ pop(c_rarg1); | |
2015 __ pop(c_rarg0); | |
0 | 2016 __ pop(state); |
2017 __ ret(0); // return from result handler | |
2018 | |
2019 return entry; | |
2020 } | |
2021 | |
2022 void TemplateInterpreterGenerator::count_bytecode() { | |
2023 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
2024 } | |
2025 | |
2026 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
2027 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
2028 } | |
2029 | |
2030 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2031 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
2032 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2033 __ orl(rbx, | |
2034 ((int) t->bytecode()) << | |
2035 BytecodePairHistogram::log2_number_of_codes); | |
2036 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2037 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
2038 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
2039 } | |
2040 | |
2041 | |
2042 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2043 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2044 // The run-time runtime saves the right registers, depending on | |
2045 // the tosca in-state for the given template. | |
2046 | |
2047 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2048 "entry must have been generated"); | |
1976
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6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops
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2049 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
304 | 2050 __ andptr(rsp, -16); // align stack as required by ABI |
0 | 2051 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
304 | 2052 __ mov(rsp, r12); // restore sp |
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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2053 __ reinit_heapbase(); |
0 | 2054 } |
2055 | |
2056 | |
2057 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2058 Label L; | |
2059 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2060 StopInterpreterAt); | |
2061 __ jcc(Assembler::notEqual, L); | |
2062 __ int3(); | |
2063 __ bind(L); | |
2064 } | |
2065 #endif // !PRODUCT | |
304 | 2066 #endif // ! CC_INTERP |