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annotate src/cpu/x86/vm/templateInterpreter_x86_32.cpp @ 12958:600c83f8e6a5
8023318: compiler/whitebox tests timeout with enabled TieredCompilation
Reviewed-by: kvn, twisti
author | iignatyev |
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date | Sat, 19 Oct 2013 21:54:46 +0400 |
parents | ce0cc25bc5e2 |
children | 5ccbab1c69f3 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
28 #include "interpreter/interpreter.hpp" | |
29 #include "interpreter/interpreterGenerator.hpp" | |
30 #include "interpreter/interpreterRuntime.hpp" | |
31 #include "interpreter/templateTable.hpp" | |
32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
1972 | 35 #include "oops/oop.inline.hpp" |
36 #include "prims/jvmtiExport.hpp" | |
37 #include "prims/jvmtiThreadState.hpp" | |
38 #include "runtime/arguments.hpp" | |
39 #include "runtime/deoptimization.hpp" | |
40 #include "runtime/frame.inline.hpp" | |
41 #include "runtime/sharedRuntime.hpp" | |
42 #include "runtime/stubRoutines.hpp" | |
43 #include "runtime/synchronizer.hpp" | |
44 #include "runtime/timer.hpp" | |
45 #include "runtime/vframeArray.hpp" | |
46 #include "utilities/debug.hpp" | |
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47 #include "utilities/macros.hpp" |
0 | 48 |
49 #define __ _masm-> | |
50 | |
51 | |
52 #ifndef CC_INTERP | |
53 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
54 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
55 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
56 | |
57 //------------------------------------------------------------------------------------------------------------------------ | |
58 | |
59 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
60 address entry = __ pc(); | |
61 | |
62 // Note: There should be a minimal interpreter frame set up when stack | |
63 // overflow occurs since we check explicitly for it now. | |
64 // | |
65 #ifdef ASSERT | |
66 { Label L; | |
304 | 67 __ lea(rax, Address(rbp, |
0 | 68 frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
304 | 69 __ cmpptr(rax, rsp); // rax, = maximal rsp for current rbp, |
0 | 70 // (stack grows negative) |
71 __ jcc(Assembler::aboveEqual, L); // check if frame is complete | |
72 __ stop ("interpreter frame not set up"); | |
73 __ bind(L); | |
74 } | |
75 #endif // ASSERT | |
76 // Restore bcp under the assumption that the current frame is still | |
77 // interpreted | |
78 __ restore_bcp(); | |
79 | |
80 // expression stack must be empty before entering the VM if an exception | |
81 // happened | |
82 __ empty_expression_stack(); | |
83 __ empty_FPU_stack(); | |
84 // throw exception | |
85 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError)); | |
86 return entry; | |
87 } | |
88 | |
89 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler(const char* name) { | |
90 address entry = __ pc(); | |
91 // expression stack must be empty before entering the VM if an exception happened | |
92 __ empty_expression_stack(); | |
93 __ empty_FPU_stack(); | |
94 // setup parameters | |
95 // ??? convention: expect aberrant index in register rbx, | |
96 __ lea(rax, ExternalAddress((address)name)); | |
97 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_ArrayIndexOutOfBoundsException), rax, rbx); | |
98 return entry; | |
99 } | |
100 | |
101 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
102 address entry = __ pc(); | |
103 // object is at TOS | |
304 | 104 __ pop(rax); |
0 | 105 // expression stack must be empty before entering the VM if an exception |
106 // happened | |
107 __ empty_expression_stack(); | |
108 __ empty_FPU_stack(); | |
109 __ call_VM(noreg, | |
110 CAST_FROM_FN_PTR(address, | |
111 InterpreterRuntime::throw_ClassCastException), | |
112 rax); | |
113 return entry; | |
114 } | |
115 | |
116 address TemplateInterpreterGenerator::generate_exception_handler_common(const char* name, const char* message, bool pass_oop) { | |
117 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
118 address entry = __ pc(); | |
119 if (pass_oop) { | |
120 // object is at TOS | |
304 | 121 __ pop(rbx); |
0 | 122 } |
123 // expression stack must be empty before entering the VM if an exception happened | |
124 __ empty_expression_stack(); | |
125 __ empty_FPU_stack(); | |
126 // setup parameters | |
127 __ lea(rax, ExternalAddress((address)name)); | |
128 if (pass_oop) { | |
129 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_klass_exception), rax, rbx); | |
130 } else { | |
131 if (message != NULL) { | |
132 __ lea(rbx, ExternalAddress((address)message)); | |
133 } else { | |
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134 __ movptr(rbx, NULL_WORD); |
0 | 135 } |
136 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), rax, rbx); | |
137 } | |
138 // throw exception | |
139 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
140 return entry; | |
141 } | |
142 | |
143 | |
144 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
145 address entry = __ pc(); | |
146 // NULL last_sp until next java call | |
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147 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 148 __ dispatch_next(state); |
149 return entry; | |
150 } | |
151 | |
152 | |
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153 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
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154 TosState incoming_state = state; |
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155 address entry = __ pc(); |
0 | 156 |
157 #ifdef COMPILER2 | |
158 // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases | |
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159 if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) { |
0 | 160 for (int i = 1; i < 8; i++) { |
161 __ ffree(i); | |
162 } | |
163 } else if (UseSSE < 2) { | |
164 __ empty_FPU_stack(); | |
165 } | |
166 #endif | |
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167 if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) { |
0 | 168 __ MacroAssembler::verify_FPU(1, "generate_return_entry_for compiled"); |
169 } else { | |
170 __ MacroAssembler::verify_FPU(0, "generate_return_entry_for compiled"); | |
171 } | |
172 | |
173 // In SSE mode, interpreter returns FP results in xmm0 but they need | |
174 // to end up back on the FPU so it can operate on them. | |
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175 if (incoming_state == ftos && UseSSE >= 1) { |
304 | 176 __ subptr(rsp, wordSize); |
0 | 177 __ movflt(Address(rsp, 0), xmm0); |
178 __ fld_s(Address(rsp, 0)); | |
304 | 179 __ addptr(rsp, wordSize); |
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180 } else if (incoming_state == dtos && UseSSE >= 2) { |
304 | 181 __ subptr(rsp, 2*wordSize); |
0 | 182 __ movdbl(Address(rsp, 0), xmm0); |
183 __ fld_d(Address(rsp, 0)); | |
304 | 184 __ addptr(rsp, 2*wordSize); |
0 | 185 } |
186 | |
187 __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_return_entry_for in interpreter"); | |
188 | |
189 // Restore stack bottom in case i2c adjusted stack | |
304 | 190 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
0 | 191 // and NULL it as marker that rsp is now tos until next java call |
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192 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 193 |
194 __ restore_bcp(); | |
195 __ restore_locals(); | |
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196 |
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197 if (incoming_state == atos) { |
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198 Register mdp = rbx; |
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199 Register tmp = rcx; |
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200 __ profile_return_type(mdp, rax, tmp); |
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201 } |
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202 |
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203 Label L_got_cache, L_giant_index; |
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204 if (EnableInvokeDynamic) { |
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205 __ cmpb(Address(rsi, 0), Bytecodes::_invokedynamic); |
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206 __ jcc(Assembler::equal, L_giant_index); |
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207 } |
1565 | 208 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
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209 __ bind(L_got_cache); |
0 | 210 __ movl(rbx, Address(rbx, rcx, |
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211 Address::times_ptr, ConstantPoolCache::base_offset() + |
0 | 212 ConstantPoolCacheEntry::flags_offset())); |
304 | 213 __ andptr(rbx, 0xFF); |
214 __ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale())); | |
0 | 215 __ dispatch_next(state, step); |
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216 |
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217 // out of the main line of code... |
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218 if (EnableInvokeDynamic) { |
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219 __ bind(L_giant_index); |
1565 | 220 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
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221 __ jmp(L_got_cache); |
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222 } |
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223 |
0 | 224 return entry; |
225 } | |
226 | |
227 | |
228 address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, int step) { | |
229 address entry = __ pc(); | |
230 | |
231 // In SSE mode, FP results are in xmm0 | |
232 if (state == ftos && UseSSE > 0) { | |
304 | 233 __ subptr(rsp, wordSize); |
0 | 234 __ movflt(Address(rsp, 0), xmm0); |
235 __ fld_s(Address(rsp, 0)); | |
304 | 236 __ addptr(rsp, wordSize); |
0 | 237 } else if (state == dtos && UseSSE >= 2) { |
304 | 238 __ subptr(rsp, 2*wordSize); |
0 | 239 __ movdbl(Address(rsp, 0), xmm0); |
240 __ fld_d(Address(rsp, 0)); | |
304 | 241 __ addptr(rsp, 2*wordSize); |
0 | 242 } |
243 | |
244 __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_deopt_entry_for in interpreter"); | |
245 | |
246 // The stack is not extended by deopt but we must NULL last_sp as this | |
247 // entry is like a "return". | |
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248 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 249 __ restore_bcp(); |
250 __ restore_locals(); | |
251 // handle exceptions | |
252 { Label L; | |
253 const Register thread = rcx; | |
254 __ get_thread(thread); | |
304 | 255 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 256 __ jcc(Assembler::zero, L); |
257 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); | |
258 __ should_not_reach_here(); | |
259 __ bind(L); | |
260 } | |
261 __ dispatch_next(state, step); | |
262 return entry; | |
263 } | |
264 | |
265 | |
266 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
267 int i = 0; | |
268 switch (type) { | |
269 case T_BOOLEAN: i = 0; break; | |
270 case T_CHAR : i = 1; break; | |
271 case T_BYTE : i = 2; break; | |
272 case T_SHORT : i = 3; break; | |
273 case T_INT : // fall through | |
274 case T_LONG : // fall through | |
275 case T_VOID : i = 4; break; | |
276 case T_FLOAT : i = 5; break; // have to treat float and double separately for SSE | |
277 case T_DOUBLE : i = 6; break; | |
278 case T_OBJECT : // fall through | |
279 case T_ARRAY : i = 7; break; | |
280 default : ShouldNotReachHere(); | |
281 } | |
282 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); | |
283 return i; | |
284 } | |
285 | |
286 | |
287 address TemplateInterpreterGenerator::generate_result_handler_for(BasicType type) { | |
288 address entry = __ pc(); | |
289 switch (type) { | |
290 case T_BOOLEAN: __ c2bool(rax); break; | |
304 | 291 case T_CHAR : __ andptr(rax, 0xFFFF); break; |
0 | 292 case T_BYTE : __ sign_extend_byte (rax); break; |
293 case T_SHORT : __ sign_extend_short(rax); break; | |
294 case T_INT : /* nothing to do */ break; | |
295 case T_DOUBLE : | |
296 case T_FLOAT : | |
297 { const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp(); | |
304 | 298 __ pop(t); // remove return address first |
0 | 299 // Must return a result for interpreter or compiler. In SSE |
300 // mode, results are returned in xmm0 and the FPU stack must | |
301 // be empty. | |
302 if (type == T_FLOAT && UseSSE >= 1) { | |
303 // Load ST0 | |
304 __ fld_d(Address(rsp, 0)); | |
305 // Store as float and empty fpu stack | |
306 __ fstp_s(Address(rsp, 0)); | |
307 // and reload | |
308 __ movflt(xmm0, Address(rsp, 0)); | |
309 } else if (type == T_DOUBLE && UseSSE >= 2 ) { | |
310 __ movdbl(xmm0, Address(rsp, 0)); | |
311 } else { | |
312 // restore ST0 | |
313 __ fld_d(Address(rsp, 0)); | |
314 } | |
315 // and pop the temp | |
304 | 316 __ addptr(rsp, 2 * wordSize); |
317 __ push(t); // restore return address | |
0 | 318 } |
319 break; | |
320 case T_OBJECT : | |
321 // retrieve result from frame | |
304 | 322 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
0 | 323 // and verify it |
324 __ verify_oop(rax); | |
325 break; | |
326 default : ShouldNotReachHere(); | |
327 } | |
328 __ ret(0); // return from result handler | |
329 return entry; | |
330 } | |
331 | |
332 address TemplateInterpreterGenerator::generate_safept_entry_for(TosState state, address runtime_entry) { | |
333 address entry = __ pc(); | |
334 __ push(state); | |
335 __ call_VM(noreg, runtime_entry); | |
336 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
337 return entry; | |
338 } | |
339 | |
340 | |
341 // Helpers for commoning out cases in the various type of method entries. | |
342 // | |
343 | |
344 // increment invocation count & check for overflow | |
345 // | |
346 // Note: checking for negative value instead of overflow | |
347 // so we have a 'sticky' overflow test | |
348 // | |
349 // rbx,: method | |
350 // rcx: invocation counter | |
351 // | |
352 void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) { | |
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353 Label done; |
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354 // Note: In tiered we increment either counters in MethodCounters* or in MDO |
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355 // depending if we're profiling or not. |
1783 | 356 if (TieredCompilation) { |
357 int increment = InvocationCounter::count_increment; | |
358 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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359 Label no_mdo; |
1783 | 360 if (ProfileInterpreter) { |
361 // Are we profiling? | |
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362 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
1783 | 363 __ testptr(rax, rax); |
364 __ jccb(Assembler::zero, no_mdo); | |
365 // Increment counter in the MDO | |
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366 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
1783 | 367 in_bytes(InvocationCounter::counter_offset())); |
368 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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369 __ jmp(done); |
1783 | 370 } |
371 __ bind(no_mdo); | |
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372 // Increment counter in MethodCounters |
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373 const Address invocation_counter(rax, |
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374 MethodCounters::invocation_counter_offset() + |
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375 InvocationCounter::counter_offset()); |
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376 |
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377 __ get_method_counters(rbx, rax, done); |
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378 __ increment_mask_and_jump(invocation_counter, increment, mask, |
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379 rcx, false, Assembler::zero, overflow); |
1783 | 380 __ bind(done); |
381 } else { | |
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382 const Address backedge_counter (rax, |
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383 MethodCounters::backedge_counter_offset() + |
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384 InvocationCounter::counter_offset()); |
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385 const Address invocation_counter(rax, |
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386 MethodCounters::invocation_counter_offset() + |
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387 InvocationCounter::counter_offset()); |
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388 |
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389 __ get_method_counters(rbx, rax, done); |
0 | 390 |
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391 if (ProfileInterpreter) { |
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392 __ incrementl(Address(rax, |
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393 MethodCounters::interpreter_invocation_counter_offset())); |
1783 | 394 } |
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395 |
1783 | 396 // Update standard invocation counters |
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397 __ movl(rcx, invocation_counter); |
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398 __ incrementl(rcx, InvocationCounter::count_increment); |
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399 __ movl(invocation_counter, rcx); // save invocation count |
1783 | 400 |
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401 __ movl(rax, backedge_counter); // load backedge counter |
1783 | 402 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
403 | |
404 __ addl(rcx, rax); // add both counters | |
0 | 405 |
1783 | 406 // profile_method is non-null only for interpreted method so |
407 // profile_method != NULL == !native_call | |
408 // BytecodeInterpreter only calls for native so code is elided. | |
409 | |
410 if (ProfileInterpreter && profile_method != NULL) { | |
411 // Test to see if we should create a method data oop | |
412 __ cmp32(rcx, | |
413 ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
414 __ jcc(Assembler::less, *profile_method_continue); | |
415 | |
416 // if no method data exists, go to profile_method | |
417 __ test_method_data_pointer(rax, *profile_method); | |
418 } | |
419 | |
0 | 420 __ cmp32(rcx, |
1783 | 421 ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); |
422 __ jcc(Assembler::aboveEqual, *overflow); | |
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423 __ bind(done); |
0 | 424 } |
425 } | |
426 | |
427 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
428 | |
429 // Asm interpreter on entry | |
430 // rdi - locals | |
431 // rsi - bcp | |
432 // rbx, - method | |
433 // rdx - cpool | |
434 // rbp, - interpreter frame | |
435 | |
436 // C++ interpreter on entry | |
437 // rsi - new interpreter state pointer | |
438 // rbp - interpreter frame pointer | |
439 // rbx - method | |
440 | |
441 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
442 // rbx, - method | |
443 // rcx - rcvr (assuming there is one) | |
444 // top of stack return address of interpreter caller | |
445 // rsp - sender_sp | |
446 | |
447 // C++ interpreter only | |
448 // rsi - previous interpreter state pointer | |
449 | |
450 // InterpreterRuntime::frequency_counter_overflow takes one argument | |
451 // indicating if the counter overflow occurs at a backwards branch (non-NULL bcp). | |
452 // The call returns the address of the verified entry point for the method or NULL | |
453 // if the compilation did not complete (either went background or bailed out). | |
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454 __ movptr(rax, (intptr_t)false); |
0 | 455 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rax); |
456 | |
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457 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
0 | 458 |
459 // Preserve invariant that rsi/rdi contain bcp/locals of sender frame | |
460 // and jump to the interpreted entry. | |
461 __ jmp(*do_continue, relocInfo::none); | |
462 | |
463 } | |
464 | |
465 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
466 // see if we've got enough room on the stack for locals plus overhead. | |
467 // the expression stack grows down incrementally, so the normal guard | |
468 // page mechanism will work for that. | |
469 // | |
470 // Registers live on entry: | |
471 // | |
472 // Asm interpreter | |
473 // rdx: number of additional locals this frame needs (what we must check) | |
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474 // rbx,: Method* |
0 | 475 |
476 // destroyed on exit | |
477 // rax, | |
478 | |
479 // NOTE: since the additional locals are also always pushed (wasn't obvious in | |
480 // generate_method_entry) so the guard should work for them too. | |
481 // | |
482 | |
483 // monitor entry size: see picture of stack set (generate_method_entry) and frame_x86.hpp | |
484 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
485 | |
486 // total overhead size: entry_size + (saved rbp, thru expr stack bottom). | |
487 // be sure to change this if you add/subtract anything to/from the overhead area | |
488 const int overhead_size = -(frame::interpreter_frame_initial_sp_offset*wordSize) + entry_size; | |
489 | |
490 const int page_size = os::vm_page_size(); | |
491 | |
492 Label after_frame_check; | |
493 | |
494 // see if the frame is greater than one page in size. If so, | |
495 // then we need to verify there is enough stack space remaining | |
496 // for the additional locals. | |
1506 | 497 __ cmpl(rdx, (page_size - overhead_size)/Interpreter::stackElementSize); |
0 | 498 __ jcc(Assembler::belowEqual, after_frame_check); |
499 | |
500 // compute rsp as if this were going to be the last frame on | |
501 // the stack before the red zone | |
502 | |
503 Label after_frame_check_pop; | |
504 | |
304 | 505 __ push(rsi); |
0 | 506 |
507 const Register thread = rsi; | |
508 | |
509 __ get_thread(thread); | |
510 | |
511 const Address stack_base(thread, Thread::stack_base_offset()); | |
512 const Address stack_size(thread, Thread::stack_size_offset()); | |
513 | |
514 // locals + overhead, in bytes | |
304 | 515 __ lea(rax, Address(noreg, rdx, Interpreter::stackElementScale(), overhead_size)); |
0 | 516 |
517 #ifdef ASSERT | |
518 Label stack_base_okay, stack_size_okay; | |
519 // verify that thread stack base is non-zero | |
304 | 520 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
0 | 521 __ jcc(Assembler::notEqual, stack_base_okay); |
522 __ stop("stack base is zero"); | |
523 __ bind(stack_base_okay); | |
524 // verify that thread stack size is non-zero | |
304 | 525 __ cmpptr(stack_size, 0); |
0 | 526 __ jcc(Assembler::notEqual, stack_size_okay); |
527 __ stop("stack size is zero"); | |
528 __ bind(stack_size_okay); | |
529 #endif | |
530 | |
531 // Add stack base to locals and subtract stack size | |
304 | 532 __ addptr(rax, stack_base); |
533 __ subptr(rax, stack_size); | |
0 | 534 |
535 // Use the maximum number of pages we might bang. | |
536 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : | |
537 (StackRedPages+StackYellowPages); | |
304 | 538 __ addptr(rax, max_pages * page_size); |
0 | 539 |
540 // check against the current stack bottom | |
304 | 541 __ cmpptr(rsp, rax); |
0 | 542 __ jcc(Assembler::above, after_frame_check_pop); |
543 | |
304 | 544 __ pop(rsi); // get saved bcp / (c++ prev state ). |
0 | 545 |
4743 | 546 // Restore sender's sp as SP. This is necessary if the sender's |
547 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
548 // and safer anyway in case of JSR292 adaptations. | |
0 | 549 |
4743 | 550 __ pop(rax); // return address must be moved if SP is changed |
551 __ mov(rsp, rsi); | |
552 __ push(rax); | |
553 | |
554 // Note: the restored frame is not necessarily interpreted. | |
555 // Use the shared runtime version of the StackOverflowError. | |
556 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
557 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
0 | 558 // all done with frame size check |
559 __ bind(after_frame_check_pop); | |
304 | 560 __ pop(rsi); |
0 | 561 |
562 __ bind(after_frame_check); | |
563 } | |
564 | |
565 // Allocate monitor and lock method (asm interpreter) | |
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566 // rbx, - Method* |
0 | 567 // |
568 void InterpreterGenerator::lock_method(void) { | |
569 // synchronize method | |
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570 const Address access_flags (rbx, Method::access_flags_offset()); |
0 | 571 const Address monitor_block_top (rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
572 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
573 | |
574 #ifdef ASSERT | |
575 { Label L; | |
576 __ movl(rax, access_flags); | |
577 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
578 __ jcc(Assembler::notZero, L); | |
579 __ stop("method doesn't need synchronization"); | |
580 __ bind(L); | |
581 } | |
582 #endif // ASSERT | |
583 // get synchronization object | |
584 { Label done; | |
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585 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
0 | 586 __ movl(rax, access_flags); |
587 __ testl(rax, JVM_ACC_STATIC); | |
304 | 588 __ movptr(rax, Address(rdi, Interpreter::local_offset_in_bytes(0))); // get receiver (assume this is frequent case) |
0 | 589 __ jcc(Assembler::zero, done); |
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590 __ movptr(rax, Address(rbx, Method::const_offset())); |
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591 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
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592 __ movptr(rax, Address(rax, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 593 __ movptr(rax, Address(rax, mirror_offset)); |
0 | 594 __ bind(done); |
595 } | |
596 // add space for monitor & lock | |
304 | 597 __ subptr(rsp, entry_size); // add space for a monitor entry |
598 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
599 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); // store object | |
600 __ mov(rdx, rsp); // object address | |
0 | 601 __ lock_object(rdx); |
602 } | |
603 | |
604 // | |
605 // Generate a fixed interpreter frame. This is identical setup for interpreted methods | |
606 // and for native methods hence the shared code. | |
607 | |
608 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
609 // initialize fixed part of activation frame | |
304 | 610 __ push(rax); // save return address |
0 | 611 __ enter(); // save old & set new rbp, |
612 | |
613 | |
304 | 614 __ push(rsi); // set sender sp |
615 __ push((int32_t)NULL_WORD); // leave last_sp as null | |
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616 __ movptr(rsi, Address(rbx,Method::const_offset())); // get ConstMethod* |
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617 __ lea(rsi, Address(rsi,ConstMethod::codes_offset())); // get codebase |
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618 __ push(rbx); // save Method* |
0 | 619 if (ProfileInterpreter) { |
620 Label method_data_continue; | |
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621 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
304 | 622 __ testptr(rdx, rdx); |
0 | 623 __ jcc(Assembler::zero, method_data_continue); |
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624 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
0 | 625 __ bind(method_data_continue); |
304 | 626 __ push(rdx); // set the mdp (method data pointer) |
0 | 627 } else { |
304 | 628 __ push(0); |
0 | 629 } |
630 | |
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631 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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632 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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633 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
304 | 634 __ push(rdx); // set constant pool cache |
635 __ push(rdi); // set locals pointer | |
0 | 636 if (native_call) { |
304 | 637 __ push(0); // no bcp |
0 | 638 } else { |
304 | 639 __ push(rsi); // set bcp |
0 | 640 } |
304 | 641 __ push(0); // reserve word for pointer to expression stack bottom |
642 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
0 | 643 } |
644 | |
645 // End of helpers | |
646 | |
647 // | |
648 // Various method entries | |
649 //------------------------------------------------------------------------------------------------------------------------ | |
650 // | |
651 // | |
652 | |
653 // Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry | |
654 | |
655 address InterpreterGenerator::generate_accessor_entry(void) { | |
656 | |
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657 // rbx,: Method* |
0 | 658 // rcx: receiver (preserve for slow entry into asm interpreter) |
659 | |
660 // rsi: senderSP must preserved for slow path, set SP to it on fast path | |
661 | |
662 address entry_point = __ pc(); | |
663 Label xreturn_path; | |
664 | |
665 // do fastpath for resolved accessor methods | |
666 if (UseFastAccessorMethods) { | |
667 Label slow_path; | |
668 // If we need a safepoint check, generate full interpreter entry. | |
669 ExternalAddress state(SafepointSynchronize::address_of_state()); | |
670 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
671 SafepointSynchronize::_not_synchronized); | |
672 | |
673 __ jcc(Assembler::notEqual, slow_path); | |
674 // ASM/C++ Interpreter | |
675 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1 | |
676 // Note: We can only use this code if the getfield has been resolved | |
677 // and if we don't have a null-pointer exception => check for | |
678 // these conditions first and use slow path if necessary. | |
679 // rbx,: method | |
680 // rcx: receiver | |
304 | 681 __ movptr(rax, Address(rsp, wordSize)); |
0 | 682 |
683 // check if local 0 != NULL and read field | |
304 | 684 __ testptr(rax, rax); |
0 | 685 __ jcc(Assembler::zero, slow_path); |
686 | |
687 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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688 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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689 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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690 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
0 | 691 // Shift codes right to get the index on the right. |
692 // The bytecode fetched looks like <index><0xb4><0x2a> | |
693 __ shrl(rdx, 2*BitsPerByte); | |
694 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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695 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
0 | 696 |
697 // rax,: local 0 | |
698 // rbx,: method | |
699 // rcx: receiver - do not destroy since it is needed for slow path! | |
700 // rcx: scratch | |
701 // rdx: constant pool cache index | |
702 // rdi: constant pool cache | |
703 // rsi: sender sp | |
704 | |
705 // check if getfield has been resolved and read constant pool cache entry | |
706 // check the validity of the cache entry by testing whether _indices field | |
707 // contains Bytecode::_getfield in b1 byte. | |
708 assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below"); | |
709 __ movl(rcx, | |
710 Address(rdi, | |
711 rdx, | |
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712 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset())); |
0 | 713 __ shrl(rcx, 2*BitsPerByte); |
714 __ andl(rcx, 0xFF); | |
715 __ cmpl(rcx, Bytecodes::_getfield); | |
716 __ jcc(Assembler::notEqual, slow_path); | |
717 | |
718 // Note: constant pool entry is not valid before bytecode is resolved | |
304 | 719 __ movptr(rcx, |
720 Address(rdi, | |
721 rdx, | |
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722 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset())); |
0 | 723 __ movl(rdx, |
724 Address(rdi, | |
725 rdx, | |
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726 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
0 | 727 |
728 Label notByte, notShort, notChar; | |
729 const Address field_address (rax, rcx, Address::times_1); | |
730 | |
731 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
732 // because they are different sizes. | |
733 // Use the type from the constant pool cache | |
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734 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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735 // Make sure we don't need to mask rdx after the above shift |
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736 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 737 __ cmpl(rdx, btos); |
738 __ jcc(Assembler::notEqual, notByte); | |
739 __ load_signed_byte(rax, field_address); | |
740 __ jmp(xreturn_path); | |
741 | |
742 __ bind(notByte); | |
743 __ cmpl(rdx, stos); | |
744 __ jcc(Assembler::notEqual, notShort); | |
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diff
changeset
|
745 __ load_signed_short(rax, field_address); |
0 | 746 __ jmp(xreturn_path); |
747 | |
748 __ bind(notShort); | |
749 __ cmpl(rdx, ctos); | |
750 __ jcc(Assembler::notEqual, notChar); | |
622
56aae7be60d4
6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
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|
751 __ load_unsigned_short(rax, field_address); |
0 | 752 __ jmp(xreturn_path); |
753 | |
754 __ bind(notChar); | |
755 #ifdef ASSERT | |
756 Label okay; | |
757 __ cmpl(rdx, atos); | |
758 __ jcc(Assembler::equal, okay); | |
759 __ cmpl(rdx, itos); | |
760 __ jcc(Assembler::equal, okay); | |
761 __ stop("what type is this?"); | |
762 __ bind(okay); | |
763 #endif // ASSERT | |
764 // All the rest are a 32 bit wordsize | |
304 | 765 // This is ok for now. Since fast accessors should be going away |
766 __ movptr(rax, field_address); | |
0 | 767 |
768 __ bind(xreturn_path); | |
769 | |
770 // _ireturn/_areturn | |
304 | 771 __ pop(rdi); // get return address |
772 __ mov(rsp, rsi); // set sp to sender sp | |
0 | 773 __ jmp(rdi); |
774 | |
775 // generate a vanilla interpreter entry as the slow path | |
776 __ bind(slow_path); | |
777 | |
778 (void) generate_normal_entry(false); | |
779 return entry_point; | |
780 } | |
781 return NULL; | |
782 | |
783 } | |
784 | |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
785 // Method entry for java.lang.ref.Reference.get. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
786 address InterpreterGenerator::generate_Reference_get_entry(void) { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
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diff
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|
787 #if INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
788 // Code: _aload_0, _getfield, _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
789 // parameter size = 1 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
790 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
791 // The code that gets generated by this routine is split into 2 parts: |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
792 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
793 // 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
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|
794 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
795 // Notes:- |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
796 // * In the G1 code we do not check whether we need to block for |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
797 // a safepoint. If G1 is enabled then we must execute the specialized |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
798 // code for Reference.get (except when the Reference object is null) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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799 // so that we can log the value in the referent field with an SATB |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
800 // update buffer. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
801 // 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
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|
802 // 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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|
803 // Reference.get() then going through the normal method entry |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
804 // will be fine. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
805 // * The G1 code below 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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|
806 // of java.lang.Reference) and jump to the slow path if null. If the |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
807 // Reference object is null then we obviously cannot fetch the referent |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
808 // 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
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|
809 // 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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|
810 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
811 // This code is based on generate_accessor_enty. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
812 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
813 // rbx,: Method* |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
814 // rcx: receiver (preserve for slow entry into asm interpreter) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
815 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
816 // rsi: senderSP must preserved 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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|
817 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
818 address entry = __ pc(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
819 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
820 const int referent_offset = java_lang_ref_Reference::referent_offset; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
821 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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|
822 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
823 if (UseG1GC) { |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
824 Label slow_path; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
825 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
826 // Check if local 0 != NULL |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
827 // 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
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|
828 __ movptr(rax, Address(rsp, wordSize)); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
829 __ testptr(rax, rax); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
830 __ jcc(Assembler::zero, slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
831 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
832 // rax: local 0 (must be preserved across the G1 barrier call) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
833 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
834 // rbx: method (at this point it's scratch) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
835 // rcx: receiver (at this point it's scratch) |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
836 // rdx: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
837 // rdi: scratch |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
838 // |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
839 // rsi: sender sp |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
840 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
841 // Preserve the sender sp in case the pre-barrier |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
842 // calls the runtime |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
843 __ push(rsi); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
844 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
845 // Load the value of the referent field. |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
846 const Address field_address(rax, referent_offset); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
847 __ movptr(rax, field_address); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
848 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
849 // 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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|
850 // 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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|
851 __ get_thread(rcx); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
852 __ g1_write_barrier_pre(noreg /* obj */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
853 rax /* pre_val */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
854 rcx /* thread */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
855 rbx /* tmp */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
856 true /* tosca_save */, |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
857 true /* expand_call */); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
858 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
859 // _areturn |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
860 __ pop(rsi); // get sender sp |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
861 __ pop(rdi); // get return address |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
862 __ mov(rsp, rsi); // set sp to sender sp |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
863 __ jmp(rdi); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
864 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
865 __ bind(slow_path); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
866 (void) generate_normal_entry(false); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
867 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
868 return entry; |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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869 } |
8001
db9981fd3124
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jprovino
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870 #endif // INCLUDE_ALL_GCS |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
871 |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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872 // If G1 is not enabled then attempt to go through the accessor entry point |
e1162778c1c8
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873 // Reference.get is an accessor |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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874 return generate_accessor_entry(); |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
875 } |
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
876 |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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|
877 /** |
b800986664f4
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diff
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|
878 * Method entry for static native methods: |
b800986664f4
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drchase
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|
879 * int java.util.zip.CRC32.update(int crc, int b) |
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|
880 */ |
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drchase
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|
881 address InterpreterGenerator::generate_CRC32_update_entry() { |
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|
882 if (UseCRC32Intrinsics) { |
b800986664f4
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|
883 address entry = __ pc(); |
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|
884 |
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|
885 // rbx,: Method* |
b800986664f4
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diff
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|
886 // rsi: senderSP must preserved for slow path, set SP to it on fast path |
b800986664f4
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drchase
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|
887 // rdx: scratch |
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888 // rdi: scratch |
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drchase
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|
889 |
b800986664f4
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drchase
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|
890 Label slow_path; |
b800986664f4
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|
891 // If we need a safepoint check, generate full interpreter entry. |
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|
892 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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893 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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894 SafepointSynchronize::_not_synchronized); |
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895 __ jcc(Assembler::notEqual, slow_path); |
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896 |
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897 // We don't generate local frame and don't align stack because |
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898 // we call stub code and there is no safepoint on this path. |
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899 |
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900 // Load parameters |
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901 const Register crc = rax; // crc |
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902 const Register val = rdx; // source java byte value |
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903 const Register tbl = rdi; // scratch |
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904 |
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905 // Arguments are reversed on java expression stack |
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906 __ movl(val, Address(rsp, wordSize)); // byte value |
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907 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
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908 |
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909 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
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910 __ notl(crc); // ~crc |
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911 __ update_byte_crc32(crc, val, tbl); |
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912 __ notl(crc); // ~crc |
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913 // result in rax |
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914 |
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915 // _areturn |
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916 __ pop(rdi); // get return address |
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917 __ mov(rsp, rsi); // set sp to sender sp |
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918 __ jmp(rdi); |
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919 |
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920 // generate a vanilla native entry as the slow path |
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921 __ bind(slow_path); |
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922 |
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923 (void) generate_native_entry(false); |
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924 |
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925 return entry; |
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926 } |
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927 return generate_native_entry(false); |
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928 } |
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929 |
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930 /** |
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931 * Method entry for static native methods: |
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932 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
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933 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
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934 */ |
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935 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
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936 if (UseCRC32Intrinsics) { |
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937 address entry = __ pc(); |
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938 |
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939 // rbx,: Method* |
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940 // rsi: senderSP must preserved for slow path, set SP to it on fast path |
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941 // rdx: scratch |
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942 // rdi: scratch |
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943 |
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944 Label slow_path; |
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945 // If we need a safepoint check, generate full interpreter entry. |
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946 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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947 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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948 SafepointSynchronize::_not_synchronized); |
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949 __ jcc(Assembler::notEqual, slow_path); |
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950 |
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951 // We don't generate local frame and don't align stack because |
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952 // we call stub code and there is no safepoint on this path. |
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953 |
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954 // Load parameters |
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955 const Register crc = rax; // crc |
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956 const Register buf = rdx; // source java byte array address |
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957 const Register len = rdi; // length |
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958 |
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959 // Arguments are reversed on java expression stack |
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960 __ movl(len, Address(rsp, wordSize)); // Length |
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961 // Calculate address of start element |
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962 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
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963 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
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964 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset |
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965 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
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966 } else { |
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967 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
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968 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
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969 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset |
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970 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
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971 } |
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972 |
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973 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
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974 // result in rax |
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975 |
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976 // _areturn |
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977 __ pop(rdi); // get return address |
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978 __ mov(rsp, rsi); // set sp to sender sp |
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979 __ jmp(rdi); |
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980 |
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981 // generate a vanilla native entry as the slow path |
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982 __ bind(slow_path); |
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983 |
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984 (void) generate_native_entry(false); |
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985 |
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986 return entry; |
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987 } |
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988 return generate_native_entry(false); |
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989 } |
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990 |
0 | 991 // |
992 // Interpreter stub for calling a native method. (asm interpreter) | |
993 // This sets up a somewhat different looking stack for calling the native method | |
994 // than the typical interpreter frame setup. | |
995 // | |
996 | |
997 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
998 // determine code generation flags | |
999 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1000 | |
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1001 // rbx,: Method* |
0 | 1002 // rsi: sender sp |
1003 // rsi: previous interpreter state (C++ interpreter) must preserve | |
1004 address entry_point = __ pc(); | |
1005 | |
7402
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1006 const Address constMethod (rbx, Method::const_offset()); |
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1007 const Address access_flags (rbx, Method::access_flags_offset()); |
7402
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1008 const Address size_of_parameters(rcx, ConstMethod::size_of_parameters_offset()); |
0 | 1009 |
1010 // get parameter size (always needed) | |
7402
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1011 __ movptr(rcx, constMethod); |
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1012 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1013 |
1014 // native calls don't need the stack size check since they have no expression stack | |
1015 // and the arguments are already on the stack and we only add a handful of words | |
1016 // to the stack | |
1017 | |
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1018 // rbx,: Method* |
0 | 1019 // rcx: size of parameters |
1020 // rsi: sender sp | |
1021 | |
304 | 1022 __ pop(rax); // get return address |
0 | 1023 // for natives the size of locals is zero |
1024 | |
1025 // compute beginning of parameters (rdi) | |
304 | 1026 __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize)); |
0 | 1027 |
1028 | |
1029 // add 2 zero-initialized slots for native calls | |
1030 // NULL result handler | |
304 | 1031 __ push((int32_t)NULL_WORD); |
0 | 1032 // NULL oop temp (mirror or jni oop result) |
304 | 1033 __ push((int32_t)NULL_WORD); |
0 | 1034 |
1035 // initialize fixed part of activation frame | |
1036 generate_fixed_frame(true); | |
1037 | |
1038 // make sure method is native & not abstract | |
1039 #ifdef ASSERT | |
1040 __ movl(rax, access_flags); | |
1041 { | |
1042 Label L; | |
1043 __ testl(rax, JVM_ACC_NATIVE); | |
1044 __ jcc(Assembler::notZero, L); | |
1045 __ stop("tried to execute non-native method as native"); | |
1046 __ bind(L); | |
1047 } | |
1048 { Label L; | |
1049 __ testl(rax, JVM_ACC_ABSTRACT); | |
1050 __ jcc(Assembler::zero, L); | |
1051 __ stop("tried to execute abstract method in interpreter"); | |
1052 __ bind(L); | |
1053 } | |
1054 #endif | |
1055 | |
1056 // Since at this point in the method invocation the exception handler | |
1057 // would try to exit the monitor of synchronized methods which hasn't | |
1058 // been entered yet, we set the thread local variable | |
1059 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1060 // check this flag. | |
1061 | |
1062 __ get_thread(rax); | |
1063 const Address do_not_unlock_if_synchronized(rax, | |
1064 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1065 __ movbool(do_not_unlock_if_synchronized, true); | |
1066 | |
1067 // increment invocation count & check for overflow | |
1068 Label invocation_counter_overflow; | |
1069 if (inc_counter) { | |
1070 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
1071 } | |
1072 | |
1073 Label continue_after_compile; | |
1074 __ bind(continue_after_compile); | |
1075 | |
1076 bang_stack_shadow_pages(true); | |
1077 | |
1078 // reset the _do_not_unlock_if_synchronized flag | |
1079 __ get_thread(rax); | |
1080 __ movbool(do_not_unlock_if_synchronized, false); | |
1081 | |
1082 // check for synchronized methods | |
1083 // Must happen AFTER invocation_counter check and stack overflow check, | |
1084 // so method is not locked if overflows. | |
1085 // | |
1086 if (synchronized) { | |
1087 lock_method(); | |
1088 } else { | |
1089 // no synchronization necessary | |
1090 #ifdef ASSERT | |
1091 { Label L; | |
1092 __ movl(rax, access_flags); | |
1093 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1094 __ jcc(Assembler::zero, L); | |
1095 __ stop("method needs synchronization"); | |
1096 __ bind(L); | |
1097 } | |
1098 #endif | |
1099 } | |
1100 | |
1101 // start execution | |
1102 #ifdef ASSERT | |
1103 { Label L; | |
1104 const Address monitor_block_top (rbp, | |
1105 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1106 __ movptr(rax, monitor_block_top); |
1107 __ cmpptr(rax, rsp); | |
0 | 1108 __ jcc(Assembler::equal, L); |
1109 __ stop("broken stack frame setup in interpreter"); | |
1110 __ bind(L); | |
1111 } | |
1112 #endif | |
1113 | |
1114 // jvmti/dtrace support | |
1115 __ notify_method_entry(); | |
1116 | |
1117 // work registers | |
1118 const Register method = rbx; | |
1119 const Register thread = rdi; | |
1120 const Register t = rcx; | |
1121 | |
1122 // allocate space for parameters | |
1123 __ get_method(method); | |
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1124 __ movptr(t, Address(method, Method::const_offset())); |
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1125 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
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1126 |
1506 | 1127 __ shlptr(t, Interpreter::logStackElementSize); |
304 | 1128 __ addptr(t, 2*wordSize); // allocate two more slots for JNIEnv and possible mirror |
1129 __ subptr(rsp, t); | |
1130 __ andptr(rsp, -(StackAlignmentInBytes)); // gcc needs 16 byte aligned stacks to do XMM intrinsics | |
0 | 1131 |
1132 // get signature handler | |
1133 { Label L; | |
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1134 __ movptr(t, Address(method, Method::signature_handler_offset())); |
304 | 1135 __ testptr(t, t); |
0 | 1136 __ jcc(Assembler::notZero, L); |
1137 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method); | |
1138 __ get_method(method); | |
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1139 __ movptr(t, Address(method, Method::signature_handler_offset())); |
0 | 1140 __ bind(L); |
1141 } | |
1142 | |
1143 // call signature handler | |
1144 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == rdi, "adjust this code"); | |
1145 assert(InterpreterRuntime::SignatureHandlerGenerator::to () == rsp, "adjust this code"); | |
1146 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == t , "adjust this code"); | |
1147 // The generated handlers do not touch RBX (the method oop). | |
1148 // However, large signatures cannot be cached and are generated | |
1149 // each time here. The slow-path generator will blow RBX | |
1150 // sometime, so we must reload it after the call. | |
1151 __ call(t); | |
1152 __ get_method(method); // slow path call blows RBX on DevStudio 5.0 | |
1153 | |
1154 // result handler is in rax, | |
1155 // set result handler | |
304 | 1156 __ movptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize), rax); |
0 | 1157 |
1158 // pass mirror handle if static call | |
1159 { Label L; | |
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1160 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1161 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1162 __ testl(t, JVM_ACC_STATIC); |
1163 __ jcc(Assembler::zero, L); | |
1164 // get mirror | |
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1165 __ movptr(t, Address(method, Method:: const_offset())); |
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1166 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1167 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
304 | 1168 __ movptr(t, Address(t, mirror_offset)); |
0 | 1169 // copy mirror into activation frame |
304 | 1170 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), t); |
0 | 1171 // pass handle to mirror |
304 | 1172 __ lea(t, Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); |
1173 __ movptr(Address(rsp, wordSize), t); | |
0 | 1174 __ bind(L); |
1175 } | |
1176 | |
1177 // get native function entry point | |
1178 { Label L; | |
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1179 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1180 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
304 | 1181 __ cmpptr(rax, unsatisfied.addr()); |
0 | 1182 __ jcc(Assembler::notEqual, L); |
1183 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method); | |
1184 __ get_method(method); | |
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1185 __ movptr(rax, Address(method, Method::native_function_offset())); |
0 | 1186 __ bind(L); |
1187 } | |
1188 | |
1189 // pass JNIEnv | |
1190 __ get_thread(thread); | |
304 | 1191 __ lea(t, Address(thread, JavaThread::jni_environment_offset())); |
1192 __ movptr(Address(rsp, 0), t); | |
0 | 1193 |
1194 // set_last_Java_frame_before_call | |
1195 // It is enough that the pc() | |
1196 // points into the right code segment. It does not have to be the correct return pc. | |
1197 __ set_last_Java_frame(thread, noreg, rbp, __ pc()); | |
1198 | |
1199 // change thread state | |
1200 #ifdef ASSERT | |
1201 { Label L; | |
1202 __ movl(t, Address(thread, JavaThread::thread_state_offset())); | |
1203 __ cmpl(t, _thread_in_Java); | |
1204 __ jcc(Assembler::equal, L); | |
1205 __ stop("Wrong thread state in native stub"); | |
1206 __ bind(L); | |
1207 } | |
1208 #endif | |
1209 | |
1210 // Change state to native | |
1211 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native); | |
1212 __ call(rax); | |
1213 | |
1214 // result potentially in rdx:rax or ST0 | |
1215 | |
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1216 // Verify or restore cpu control state after JNI call |
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1217 __ restore_cpu_control_state_after_jni(); |
0 | 1218 |
1219 // save potential result in ST(0) & rdx:rax | |
1220 // (if result handler is the T_FLOAT or T_DOUBLE handler, result must be in ST0 - | |
1221 // the check is necessary to avoid potential Intel FPU overflow problems by saving/restoring 'empty' FPU registers) | |
1222 // It is safe to do this push because state is _thread_in_native and return address will be found | |
1223 // via _last_native_pc and not via _last_jave_sp | |
1224 | |
1225 // NOTE: the order of theses push(es) is known to frame::interpreter_frame_result. | |
1226 // If the order changes or anything else is added to the stack the code in | |
1227 // interpreter_frame_result will have to be changed. | |
1228 | |
1229 { Label L; | |
1230 Label push_double; | |
1231 ExternalAddress float_handler(AbstractInterpreter::result_handler(T_FLOAT)); | |
1232 ExternalAddress double_handler(AbstractInterpreter::result_handler(T_DOUBLE)); | |
1233 __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize), | |
1234 float_handler.addr()); | |
1235 __ jcc(Assembler::equal, push_double); | |
1236 __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize), | |
1237 double_handler.addr()); | |
1238 __ jcc(Assembler::notEqual, L); | |
1239 __ bind(push_double); | |
1240 __ push(dtos); | |
1241 __ bind(L); | |
1242 } | |
1243 __ push(ltos); | |
1244 | |
1245 // change thread state | |
1246 __ get_thread(thread); | |
1247 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native_trans); | |
1248 if(os::is_MP()) { | |
1249 if (UseMembar) { | |
304 | 1250 // Force this write out before the read below |
1251 __ membar(Assembler::Membar_mask_bits( | |
1252 Assembler::LoadLoad | Assembler::LoadStore | | |
1253 Assembler::StoreLoad | Assembler::StoreStore)); | |
0 | 1254 } else { |
1255 // Write serialization page so VM thread can do a pseudo remote membar. | |
1256 // We use the current thread pointer to calculate a thread specific | |
1257 // offset to write to within the page. This minimizes bus traffic | |
1258 // due to cache line collision. | |
1259 __ serialize_memory(thread, rcx); | |
1260 } | |
1261 } | |
1262 | |
1263 if (AlwaysRestoreFPU) { | |
1264 // Make sure the control word is correct. | |
1265 __ fldcw(ExternalAddress(StubRoutines::addr_fpu_cntrl_wrd_std())); | |
1266 } | |
1267 | |
1268 // check for safepoint operation in progress and/or pending suspend requests | |
1269 { Label Continue; | |
1270 | |
1271 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
1272 SafepointSynchronize::_not_synchronized); | |
1273 | |
1274 Label L; | |
1275 __ jcc(Assembler::notEqual, L); | |
1276 __ cmpl(Address(thread, JavaThread::suspend_flags_offset()), 0); | |
1277 __ jcc(Assembler::equal, Continue); | |
1278 __ bind(L); | |
1279 | |
1280 // Don't use call_VM as it will see a possible pending exception and forward it | |
1281 // and never return here preventing us from clearing _last_native_pc down below. | |
1282 // Also can't use call_VM_leaf either as it will check to see if rsi & rdi are | |
1283 // preserved and correspond to the bcp/locals pointers. So we do a runtime call | |
1284 // by hand. | |
1285 // | |
304 | 1286 __ push(thread); |
0 | 1287 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, |
1288 JavaThread::check_special_condition_for_native_trans))); | |
1289 __ increment(rsp, wordSize); | |
1290 __ get_thread(thread); | |
1291 | |
1292 __ bind(Continue); | |
1293 } | |
1294 | |
1295 // change thread state | |
1296 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
1297 | |
1298 __ reset_last_Java_frame(thread, true, true); | |
1299 | |
1300 // reset handle block | |
304 | 1301 __ movptr(t, Address(thread, JavaThread::active_handles_offset())); |
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1302 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), NULL_WORD); |
0 | 1303 |
1304 // If result was an oop then unbox and save it in the frame | |
1305 { Label L; | |
1306 Label no_oop, store_result; | |
1307 ExternalAddress handler(AbstractInterpreter::result_handler(T_OBJECT)); | |
1308 __ cmpptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize), | |
1309 handler.addr()); | |
1310 __ jcc(Assembler::notEqual, no_oop); | |
304 | 1311 __ cmpptr(Address(rsp, 0), (int32_t)NULL_WORD); |
0 | 1312 __ pop(ltos); |
304 | 1313 __ testptr(rax, rax); |
0 | 1314 __ jcc(Assembler::zero, store_result); |
1315 // unbox | |
304 | 1316 __ movptr(rax, Address(rax, 0)); |
0 | 1317 __ bind(store_result); |
304 | 1318 __ movptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset)*wordSize), rax); |
0 | 1319 // keep stack depth as expected by pushing oop which will eventually be discarded |
1320 __ push(ltos); | |
1321 __ bind(no_oop); | |
1322 } | |
1323 | |
1324 { | |
1325 Label no_reguard; | |
1326 __ cmpl(Address(thread, JavaThread::stack_guard_state_offset()), JavaThread::stack_guard_yellow_disabled); | |
1327 __ jcc(Assembler::notEqual, no_reguard); | |
1328 | |
304 | 1329 __ pusha(); |
0 | 1330 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 1331 __ popa(); |
0 | 1332 |
1333 __ bind(no_reguard); | |
1334 } | |
1335 | |
1336 // restore rsi to have legal interpreter frame, | |
1337 // i.e., bci == 0 <=> rsi == code_base() | |
1338 // Can't call_VM until bcp is within reasonable. | |
1339 __ get_method(method); // method is junk from thread_in_native to now. | |
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1340 __ movptr(rsi, Address(method,Method::const_offset())); // get ConstMethod* |
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1341 __ lea(rsi, Address(rsi,ConstMethod::codes_offset())); // get codebase |
0 | 1342 |
1343 // handle exceptions (exception handling will handle unlocking!) | |
1344 { Label L; | |
304 | 1345 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 1346 __ jcc(Assembler::zero, L); |
1347 // Note: At some point we may want to unify this with the code used in call_VM_base(); | |
1348 // i.e., we should use the StubRoutines::forward_exception code. For now this | |
1349 // doesn't work here because the rsp is not correctly set at this point. | |
1350 __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); | |
1351 __ should_not_reach_here(); | |
1352 __ bind(L); | |
1353 } | |
1354 | |
1355 // do unlocking if necessary | |
1356 { Label L; | |
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1357 __ movl(t, Address(method, Method::access_flags_offset())); |
0 | 1358 __ testl(t, JVM_ACC_SYNCHRONIZED); |
1359 __ jcc(Assembler::zero, L); | |
1360 // the code below should be shared with interpreter macro assembler implementation | |
1361 { Label unlock; | |
1362 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
1363 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
1364 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
1365 | |
304 | 1366 __ lea(rdx, monitor); // address of first monitor |
0 | 1367 |
304 | 1368 __ movptr(t, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
1369 __ testptr(t, t); | |
0 | 1370 __ jcc(Assembler::notZero, unlock); |
1371 | |
1372 // Entry already unlocked, need to throw exception | |
1373 __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
1374 __ should_not_reach_here(); | |
1375 | |
1376 __ bind(unlock); | |
1377 __ unlock_object(rdx); | |
1378 } | |
1379 __ bind(L); | |
1380 } | |
1381 | |
1382 // jvmti/dtrace support | |
1383 // Note: This must happen _after_ handling/throwing any exceptions since | |
1384 // the exception handler code notifies the runtime of method exits | |
1385 // too. If this happens before, method entry/exit notifications are | |
1386 // not properly paired (was bug - gri 11/22/99). | |
1387 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
1388 | |
1389 // restore potential result in rdx:rax, call result handler to restore potential result in ST0 & handle result | |
1390 __ pop(ltos); | |
304 | 1391 __ movptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
0 | 1392 __ call(t); |
1393 | |
1394 // remove activation | |
304 | 1395 __ movptr(t, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 1396 __ leave(); // remove frame anchor |
304 | 1397 __ pop(rdi); // get return address |
1398 __ mov(rsp, t); // set sp to sender sp | |
0 | 1399 __ jmp(rdi); |
1400 | |
1401 if (inc_counter) { | |
1402 // Handle overflow of counter and compile method | |
1403 __ bind(invocation_counter_overflow); | |
1404 generate_counter_overflow(&continue_after_compile); | |
1405 } | |
1406 | |
1407 return entry_point; | |
1408 } | |
1409 | |
1410 // | |
1411 // Generic interpreted method entry to (asm) interpreter | |
1412 // | |
1413 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
1414 // determine code generation flags | |
1415 bool inc_counter = UseCompiler || CountCompiledCalls; | |
1416 | |
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1417 // rbx,: Method* |
0 | 1418 // rsi: sender sp |
1419 address entry_point = __ pc(); | |
1420 | |
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1421 const Address constMethod (rbx, Method::const_offset()); |
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1422 const Address access_flags (rbx, Method::access_flags_offset()); |
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1423 const Address size_of_parameters(rdx, ConstMethod::size_of_parameters_offset()); |
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1424 const Address size_of_locals (rdx, ConstMethod::size_of_locals_offset()); |
0 | 1425 |
1426 // get parameter size (always needed) | |
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1427 __ movptr(rdx, constMethod); |
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1428 __ load_unsigned_short(rcx, size_of_parameters); |
0 | 1429 |
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1430 // rbx,: Method* |
0 | 1431 // rcx: size of parameters |
1432 | |
1433 // rsi: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
1434 | |
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1435 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
0 | 1436 __ subl(rdx, rcx); // rdx = no. of additional locals |
1437 | |
1438 // see if we've got enough room on the stack for locals plus overhead. | |
1439 generate_stack_overflow_check(); | |
1440 | |
1441 // get return address | |
304 | 1442 __ pop(rax); |
0 | 1443 |
1444 // compute beginning of parameters (rdi) | |
304 | 1445 __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize)); |
0 | 1446 |
1447 // rdx - # of additional locals | |
1448 // allocate space for locals | |
1449 // explicitly initialize locals | |
1450 { | |
1451 Label exit, loop; | |
1452 __ testl(rdx, rdx); | |
1453 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
1454 __ bind(loop); | |
304 | 1455 __ push((int32_t)NULL_WORD); // initialize local variables |
0 | 1456 __ decrement(rdx); // until everything initialized |
1457 __ jcc(Assembler::greater, loop); | |
1458 __ bind(exit); | |
1459 } | |
1460 | |
1461 // initialize fixed part of activation frame | |
1462 generate_fixed_frame(false); | |
1463 | |
1464 // make sure method is not native & not abstract | |
1465 #ifdef ASSERT | |
1466 __ movl(rax, access_flags); | |
1467 { | |
1468 Label L; | |
1469 __ testl(rax, JVM_ACC_NATIVE); | |
1470 __ jcc(Assembler::zero, L); | |
1471 __ stop("tried to execute native method as non-native"); | |
1472 __ bind(L); | |
1473 } | |
1474 { Label L; | |
1475 __ testl(rax, JVM_ACC_ABSTRACT); | |
1476 __ jcc(Assembler::zero, L); | |
1477 __ stop("tried to execute abstract method in interpreter"); | |
1478 __ bind(L); | |
1479 } | |
1480 #endif | |
1481 | |
1482 // Since at this point in the method invocation the exception handler | |
1483 // would try to exit the monitor of synchronized methods which hasn't | |
1484 // been entered yet, we set the thread local variable | |
1485 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
1486 // check this flag. | |
1487 | |
1488 __ get_thread(rax); | |
1489 const Address do_not_unlock_if_synchronized(rax, | |
1490 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
1491 __ movbool(do_not_unlock_if_synchronized, true); | |
1492 | |
1493 // increment invocation count & check for overflow | |
1494 Label invocation_counter_overflow; | |
1495 Label profile_method; | |
1496 Label profile_method_continue; | |
1497 if (inc_counter) { | |
1498 generate_counter_incr(&invocation_counter_overflow, &profile_method, &profile_method_continue); | |
1499 if (ProfileInterpreter) { | |
1500 __ bind(profile_method_continue); | |
1501 } | |
1502 } | |
1503 Label continue_after_compile; | |
1504 __ bind(continue_after_compile); | |
1505 | |
1506 bang_stack_shadow_pages(false); | |
1507 | |
1508 // reset the _do_not_unlock_if_synchronized flag | |
1509 __ get_thread(rax); | |
1510 __ movbool(do_not_unlock_if_synchronized, false); | |
1511 | |
1512 // check for synchronized methods | |
1513 // Must happen AFTER invocation_counter check and stack overflow check, | |
1514 // so method is not locked if overflows. | |
1515 // | |
1516 if (synchronized) { | |
1517 // Allocate monitor and lock method | |
1518 lock_method(); | |
1519 } else { | |
1520 // no synchronization necessary | |
1521 #ifdef ASSERT | |
1522 { Label L; | |
1523 __ movl(rax, access_flags); | |
1524 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
1525 __ jcc(Assembler::zero, L); | |
1526 __ stop("method needs synchronization"); | |
1527 __ bind(L); | |
1528 } | |
1529 #endif | |
1530 } | |
1531 | |
1532 // start execution | |
1533 #ifdef ASSERT | |
1534 { Label L; | |
1535 const Address monitor_block_top (rbp, | |
1536 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
304 | 1537 __ movptr(rax, monitor_block_top); |
1538 __ cmpptr(rax, rsp); | |
0 | 1539 __ jcc(Assembler::equal, L); |
1540 __ stop("broken stack frame setup in interpreter"); | |
1541 __ bind(L); | |
1542 } | |
1543 #endif | |
1544 | |
1545 // jvmti support | |
1546 __ notify_method_entry(); | |
1547 | |
1548 __ dispatch_next(vtos); | |
1549 | |
1550 // invocation counter overflow | |
1551 if (inc_counter) { | |
1552 if (ProfileInterpreter) { | |
1553 // We have decided to profile this method in the interpreter | |
1554 __ bind(profile_method); | |
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1555 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1556 __ set_method_data_pointer_for_bcp(); |
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1557 __ get_method(rbx); |
0 | 1558 __ jmp(profile_method_continue); |
1559 } | |
1560 // Handle overflow of counter and compile method | |
1561 __ bind(invocation_counter_overflow); | |
1562 generate_counter_overflow(&continue_after_compile); | |
1563 } | |
1564 | |
1565 return entry_point; | |
1566 } | |
1567 | |
1568 //------------------------------------------------------------------------------------------------------------------------ | |
1569 // Entry points | |
1570 // | |
1571 // Here we generate the various kind of entries into the interpreter. | |
1572 // The two main entry type are generic bytecode methods and native call method. | |
1573 // These both come in synchronized and non-synchronized versions but the | |
1574 // frame layout they create is very similar. The other method entry | |
1575 // types are really just special purpose entries that are really entry | |
1576 // and interpretation all in one. These are for trivial methods like | |
1577 // accessor, empty, or special math methods. | |
1578 // | |
1579 // When control flow reaches any of the entry types for the interpreter | |
1580 // the following holds -> | |
1581 // | |
1582 // Arguments: | |
1583 // | |
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1584 // rbx,: Method* |
0 | 1585 // rcx: receiver |
1586 // | |
1587 // | |
1588 // Stack layout immediately at entry | |
1589 // | |
1590 // [ return address ] <--- rsp | |
1591 // [ parameter n ] | |
1592 // ... | |
1593 // [ parameter 1 ] | |
1594 // [ expression stack ] (caller's java expression stack) | |
1595 | |
1596 // Assuming that we don't go to one of the trivial specialized | |
1597 // entries the stack will look like below when we are ready to execute | |
1598 // the first bytecode (or call the native routine). The register usage | |
1599 // will be as the template based interpreter expects (see interpreter_x86.hpp). | |
1600 // | |
1601 // local variables follow incoming parameters immediately; i.e. | |
1602 // the return address is moved to the end of the locals). | |
1603 // | |
1604 // [ monitor entry ] <--- rsp | |
1605 // ... | |
1606 // [ monitor entry ] | |
1607 // [ expr. stack bottom ] | |
1608 // [ saved rsi ] | |
1609 // [ current rdi ] | |
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1610 // [ Method* ] |
0 | 1611 // [ saved rbp, ] <--- rbp, |
1612 // [ return address ] | |
1613 // [ local variable m ] | |
1614 // ... | |
1615 // [ local variable 1 ] | |
1616 // [ parameter n ] | |
1617 // ... | |
1618 // [ parameter 1 ] <--- rdi | |
1619 | |
1620 address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) { | |
1621 // determine code generation flags | |
1622 bool synchronized = false; | |
1623 address entry_point = NULL; | |
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1624 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
0 | 1625 |
1626 switch (kind) { | |
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1627 case Interpreter::zerolocals : break; |
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1628 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
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1629 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
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1630 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
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1631 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
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1632 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
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1633 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
0 | 1634 |
1635 case Interpreter::java_lang_math_sin : // fall thru | |
1636 case Interpreter::java_lang_math_cos : // fall thru | |
1637 case Interpreter::java_lang_math_tan : // fall thru | |
1638 case Interpreter::java_lang_math_abs : // fall thru | |
1639 case Interpreter::java_lang_math_log : // fall thru | |
1640 case Interpreter::java_lang_math_log10 : // fall thru | |
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1641 case Interpreter::java_lang_math_sqrt : // fall thru |
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1642 case Interpreter::java_lang_math_pow : // fall thru |
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1643 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
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1644 case Interpreter::java_lang_ref_reference_get |
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1645 : entry_point = ig_this->generate_Reference_get_entry(); break; |
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1646 case Interpreter::java_util_zip_CRC32_update |
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1647 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
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1648 case Interpreter::java_util_zip_CRC32_updateBytes |
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1649 : // fall thru |
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1650 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
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1651 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
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1652 default: |
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1653 fatal(err_msg("unexpected method kind: %d", kind)); |
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1654 break; |
0 | 1655 } |
1656 | |
1657 if (entry_point) return entry_point; | |
1658 | |
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1659 return ig_this->generate_normal_entry(synchronized); |
0 | 1660 |
1661 } | |
1662 | |
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1663 // These should never be compiled since the interpreter will prefer |
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1664 // the compiled version to the intrinsic version. |
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1665 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
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1666 switch (method_kind(m)) { |
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1667 case Interpreter::java_lang_math_sin : // fall thru |
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1668 case Interpreter::java_lang_math_cos : // fall thru |
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1669 case Interpreter::java_lang_math_tan : // fall thru |
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1670 case Interpreter::java_lang_math_abs : // fall thru |
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1671 case Interpreter::java_lang_math_log : // fall thru |
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1672 case Interpreter::java_lang_math_log10 : // fall thru |
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1673 case Interpreter::java_lang_math_sqrt : // fall thru |
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1674 case Interpreter::java_lang_math_pow : // fall thru |
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1675 case Interpreter::java_lang_math_exp : |
1174
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1676 return false; |
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|
1677 default: |
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1678 return true; |
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1679 } |
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1680 } |
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1681 |
0 | 1682 // How much stack a method activation needs in words. |
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1683 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
0 | 1684 |
1685 const int stub_code = 4; // see generate_call_stub | |
1686 // Save space for one monitor to get into the interpreted method in case | |
1687 // the method is synchronized | |
1688 int monitor_size = method->is_synchronized() ? | |
1689 1*frame::interpreter_frame_monitor_size() : 0; | |
1690 | |
1691 // total overhead size: entry_size + (saved rbp, thru expr stack bottom). | |
1692 // be sure to change this if you add/subtract anything to/from the overhead area | |
1693 const int overhead_size = -frame::interpreter_frame_initial_sp_offset; | |
1694 | |
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1695 const int method_stack = (method->max_locals() + method->max_stack()) * |
1506 | 1696 Interpreter::stackElementWords; |
0 | 1697 return overhead_size + method_stack + stub_code; |
1698 } | |
1699 | |
1700 // asm based interpreter deoptimization helpers | |
1701 | |
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1702 int AbstractInterpreter::layout_activation(Method* method, |
0 | 1703 int tempcount, |
1704 int popframe_extra_args, | |
1705 int moncount, | |
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1706 int caller_actual_parameters, |
0 | 1707 int callee_param_count, |
1708 int callee_locals, | |
1709 frame* caller, | |
1710 frame* interpreter_frame, | |
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1711 bool is_top_frame, |
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1712 bool is_bottom_frame) { |
0 | 1713 // Note: This calculation must exactly parallel the frame setup |
1714 // in AbstractInterpreterGenerator::generate_method_entry. | |
1715 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
1716 // The frame interpreter_frame, if not NULL, is guaranteed to be the right size, | |
1717 // as determined by a previous call to this method. | |
1718 // It is also guaranteed to be walkable even though it is in a skeletal state | |
1719 // NOTE: return size is in words not bytes | |
1720 | |
1721 // fixed size of an interpreter frame: | |
1506 | 1722 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
0 | 1723 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
1506 | 1724 Interpreter::stackElementWords; |
0 | 1725 |
1726 int overhead = frame::sender_sp_offset - frame::interpreter_frame_initial_sp_offset; | |
1727 | |
1728 // Our locals were accounted for by the caller (or last_frame_adjust on the transistion) | |
1729 // Since the callee parameters already account for the callee's params we only need to account for | |
1730 // the extra locals. | |
1731 | |
1732 | |
1733 int size = overhead + | |
1506 | 1734 ((callee_locals - callee_param_count)*Interpreter::stackElementWords) + |
0 | 1735 (moncount*frame::interpreter_frame_monitor_size()) + |
1506 | 1736 tempcount*Interpreter::stackElementWords + popframe_extra_args; |
0 | 1737 |
1738 if (interpreter_frame != NULL) { | |
1739 #ifdef ASSERT | |
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1740 if (!EnableInvokeDynamic) |
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1741 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
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1742 // Probably, since deoptimization doesn't work yet. |
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1743 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
0 | 1744 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
1745 #endif | |
1746 | |
1747 interpreter_frame->interpreter_frame_set_method(method); | |
1748 // NOTE the difference in using sender_sp and interpreter_frame_sender_sp | |
1749 // interpreter_frame_sender_sp is the original sp of the caller (the unextended_sp) | |
1750 // and sender_sp is fp+8 | |
1751 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
1752 | |
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1753 #ifdef ASSERT |
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1754 if (caller->is_interpreted_frame()) { |
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1755 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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1756 } |
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1757 #endif |
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1758 |
0 | 1759 interpreter_frame->interpreter_frame_set_locals(locals); |
1760 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
1761 BasicObjectLock* monbot = montop - moncount; | |
1762 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
1763 | |
1764 // Set last_sp | |
1765 intptr_t* rsp = (intptr_t*) monbot - | |
1506 | 1766 tempcount*Interpreter::stackElementWords - |
0 | 1767 popframe_extra_args; |
1768 interpreter_frame->interpreter_frame_set_last_sp(rsp); | |
1769 | |
1770 // All frames but the initial (oldest) interpreter frame we fill in have a | |
1771 // value for sender_sp that allows walking the stack but isn't | |
1772 // truly correct. Correct the value here. | |
1773 | |
1774 if (extra_locals != 0 && | |
1775 interpreter_frame->sender_sp() == interpreter_frame->interpreter_frame_sender_sp() ) { | |
1776 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + extra_locals); | |
1777 } | |
1778 *interpreter_frame->interpreter_frame_cache_addr() = | |
1779 method->constants()->cache(); | |
1780 } | |
1781 return size; | |
1782 } | |
1783 | |
1784 | |
1785 //------------------------------------------------------------------------------------------------------------------------ | |
1786 // Exceptions | |
1787 | |
1788 void TemplateInterpreterGenerator::generate_throw_exception() { | |
1789 // Entry point in previous activation (i.e., if the caller was interpreted) | |
1790 Interpreter::_rethrow_exception_entry = __ pc(); | |
1295 | 1791 const Register thread = rcx; |
0 | 1792 |
1793 // Restore sp to interpreter_frame_last_sp even though we are going | |
1794 // to empty the expression stack for the exception processing. | |
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1795 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 1796 // rax,: exception |
1797 // rdx: return address/pc that threw exception | |
1798 __ restore_bcp(); // rsi points to call/send | |
1799 __ restore_locals(); | |
1800 | |
1801 // Entry point for exceptions thrown within interpreter code | |
1802 Interpreter::_throw_exception_entry = __ pc(); | |
1803 // expression stack is undefined here | |
1804 // rax,: exception | |
1805 // rsi: exception bcp | |
1806 __ verify_oop(rax); | |
1807 | |
1808 // expression stack must be empty before entering the VM in case of an exception | |
1809 __ empty_expression_stack(); | |
1810 __ empty_FPU_stack(); | |
1811 // find exception handler address and preserve exception oop | |
1812 __ call_VM(rdx, CAST_FROM_FN_PTR(address, InterpreterRuntime::exception_handler_for_exception), rax); | |
1813 // rax,: exception handler entry point | |
1814 // rdx: preserved exception oop | |
1815 // rsi: bcp for exception handler | |
1816 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
1817 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
1818 | |
1819 // If the exception is not handled in the current frame the frame is removed and | |
1820 // the exception is rethrown (i.e. exception continuation is _rethrow_exception). | |
1821 // | |
1822 // Note: At this point the bci is still the bxi for the instruction which caused | |
1823 // the exception and the expression stack is empty. Thus, for any VM calls | |
1824 // at this point, GC will find a legal oop map (with empty expression stack). | |
1825 | |
1826 // In current activation | |
1827 // tos: exception | |
1828 // rsi: exception bcp | |
1829 | |
1830 // | |
1831 // JVMTI PopFrame support | |
1832 // | |
1833 | |
1834 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
1835 __ empty_expression_stack(); | |
1836 __ empty_FPU_stack(); | |
1837 // Set the popframe_processing bit in pending_popframe_condition indicating that we are | |
1838 // currently handling popframe, so that call_VMs that may happen later do not trigger new | |
1839 // popframe handling cycles. | |
1295 | 1840 __ get_thread(thread); |
1841 __ movl(rdx, Address(thread, JavaThread::popframe_condition_offset())); | |
0 | 1842 __ orl(rdx, JavaThread::popframe_processing_bit); |
1295 | 1843 __ movl(Address(thread, JavaThread::popframe_condition_offset()), rdx); |
0 | 1844 |
1845 { | |
1846 // Check to see whether we are returning to a deoptimized frame. | |
1847 // (The PopFrame call ensures that the caller of the popped frame is | |
1848 // either interpreted or compiled and deoptimizes it if compiled.) | |
1849 // In this case, we can't call dispatch_next() after the frame is | |
1850 // popped, but instead must save the incoming arguments and restore | |
1851 // them after deoptimization has occurred. | |
1852 // | |
1853 // Note that we don't compare the return PC against the | |
1854 // deoptimization blob's unpack entry because of the presence of | |
1855 // adapter frames in C2. | |
1856 Label caller_not_deoptimized; | |
304 | 1857 __ movptr(rdx, Address(rbp, frame::return_addr_offset * wordSize)); |
0 | 1858 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::interpreter_contains), rdx); |
1859 __ testl(rax, rax); | |
1860 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
1861 | |
1862 // Compute size of arguments for saving when returning to deoptimized caller | |
1863 __ get_method(rax); | |
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1864 __ movptr(rax, Address(rax, Method::const_offset())); |
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1865 __ load_unsigned_short(rax, Address(rax, ConstMethod::size_of_parameters_offset())); |
1506 | 1866 __ shlptr(rax, Interpreter::logStackElementSize); |
0 | 1867 __ restore_locals(); |
304 | 1868 __ subptr(rdi, rax); |
1869 __ addptr(rdi, wordSize); | |
0 | 1870 // Save these arguments |
1295 | 1871 __ get_thread(thread); |
1872 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::popframe_preserve_args), thread, rax, rdi); | |
0 | 1873 |
1874 __ remove_activation(vtos, rdx, | |
1875 /* throw_monitor_exception */ false, | |
1876 /* install_monitor_exception */ false, | |
1877 /* notify_jvmdi */ false); | |
1878 | |
1879 // Inform deoptimization that it is responsible for restoring these arguments | |
1295 | 1880 __ get_thread(thread); |
1881 __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_force_deopt_reexecution_bit); | |
0 | 1882 |
1883 // Continue in deoptimization handler | |
1884 __ jmp(rdx); | |
1885 | |
1886 __ bind(caller_not_deoptimized); | |
1887 } | |
1888 | |
1889 __ remove_activation(vtos, rdx, | |
1890 /* throw_monitor_exception */ false, | |
1891 /* install_monitor_exception */ false, | |
1892 /* notify_jvmdi */ false); | |
1893 | |
1894 // Finish with popframe handling | |
1895 // A previous I2C followed by a deoptimization might have moved the | |
1896 // outgoing arguments further up the stack. PopFrame expects the | |
1897 // mutations to those outgoing arguments to be preserved and other | |
1898 // constraints basically require this frame to look exactly as | |
1899 // though it had previously invoked an interpreted activation with | |
1900 // no space between the top of the expression stack (current | |
1901 // last_sp) and the top of stack. Rather than force deopt to | |
1902 // maintain this kind of invariant all the time we call a small | |
1903 // fixup routine to move the mutated arguments onto the top of our | |
1904 // expression stack if necessary. | |
304 | 1905 __ mov(rax, rsp); |
1906 __ movptr(rbx, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
1295 | 1907 __ get_thread(thread); |
0 | 1908 // PC must point into interpreter here |
1295 | 1909 __ set_last_Java_frame(thread, noreg, rbp, __ pc()); |
1910 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), thread, rax, rbx); | |
1911 __ get_thread(thread); | |
1912 __ reset_last_Java_frame(thread, true, true); | |
0 | 1913 // Restore the last_sp and null it out |
304 | 1914 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
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1915 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
0 | 1916 |
1917 __ restore_bcp(); | |
1918 __ restore_locals(); | |
1919 // The method data pointer was incremented already during | |
1920 // call profiling. We have to restore the mdp for the current bcp. | |
1921 if (ProfileInterpreter) { | |
1922 __ set_method_data_pointer_for_bcp(); | |
1923 } | |
1924 | |
1925 // Clear the popframe condition flag | |
1295 | 1926 __ get_thread(thread); |
1927 __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_inactive); | |
0 | 1928 |
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1929 #if INCLUDE_JVMTI |
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1930 if (EnableInvokeDynamic) { |
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1931 Label L_done; |
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1932 const Register local0 = rdi; |
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1933 |
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1934 __ cmpb(Address(rsi, 0), Bytecodes::_invokestatic); |
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1935 __ jcc(Assembler::notEqual, L_done); |
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1936 |
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1937 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1938 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1939 |
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1940 __ get_method(rdx); |
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1941 __ movptr(rax, Address(local0, 0)); |
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1942 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, rsi); |
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1943 |
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1944 __ testptr(rax, rax); |
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1945 __ jcc(Assembler::zero, L_done); |
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1946 |
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1947 __ movptr(Address(rbx, 0), rax); |
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1948 __ bind(L_done); |
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1949 } |
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1950 #endif // INCLUDE_JVMTI |
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1951 |
0 | 1952 __ dispatch_next(vtos); |
1953 // end of PopFrame support | |
1954 | |
1955 Interpreter::_remove_activation_entry = __ pc(); | |
1956 | |
1957 // preserve exception over this code sequence | |
1958 __ pop_ptr(rax); | |
1295 | 1959 __ get_thread(thread); |
1960 __ movptr(Address(thread, JavaThread::vm_result_offset()), rax); | |
0 | 1961 // remove the activation (without doing throws on illegalMonitorExceptions) |
1962 __ remove_activation(vtos, rdx, false, true, false); | |
1963 // restore exception | |
1295 | 1964 __ get_thread(thread); |
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1965 __ get_vm_result(rax, thread); |
0 | 1966 |
1967 // Inbetween activations - previous activation type unknown yet | |
1968 // compute continuation point - the continuation point expects | |
1969 // the following registers set up: | |
1970 // | |
1295 | 1971 // rax: exception |
0 | 1972 // rdx: return address/pc that threw exception |
1973 // rsp: expression stack of caller | |
1295 | 1974 // rbp: rbp, of caller |
304 | 1975 __ push(rax); // save exception |
1976 __ push(rdx); // save return address | |
1295 | 1977 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, rdx); |
304 | 1978 __ mov(rbx, rax); // save exception handler |
1979 __ pop(rdx); // restore return address | |
1980 __ pop(rax); // restore exception | |
0 | 1981 // Note that an "issuing PC" is actually the next PC after the call |
1982 __ jmp(rbx); // jump to exception handler of caller | |
1983 } | |
1984 | |
1985 | |
1986 // | |
1987 // JVMTI ForceEarlyReturn support | |
1988 // | |
1989 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
1990 address entry = __ pc(); | |
1295 | 1991 const Register thread = rcx; |
0 | 1992 |
1993 __ restore_bcp(); | |
1994 __ restore_locals(); | |
1995 __ empty_expression_stack(); | |
1996 __ empty_FPU_stack(); | |
1997 __ load_earlyret_value(state); | |
1998 | |
1295 | 1999 __ get_thread(thread); |
2000 __ movptr(rcx, Address(thread, JavaThread::jvmti_thread_state_offset())); | |
0 | 2001 const Address cond_addr(rcx, JvmtiThreadState::earlyret_state_offset()); |
2002 | |
2003 // Clear the earlyret state | |
2004 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
2005 | |
2006 __ remove_activation(state, rsi, | |
2007 false, /* throw_monitor_exception */ | |
2008 false, /* install_monitor_exception */ | |
2009 true); /* notify_jvmdi */ | |
2010 __ jmp(rsi); | |
2011 return entry; | |
2012 } // end of ForceEarlyReturn support | |
2013 | |
2014 | |
2015 //------------------------------------------------------------------------------------------------------------------------ | |
2016 // Helper for vtos entry point generation | |
2017 | |
2018 void TemplateInterpreterGenerator::set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep) { | |
2019 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
2020 Label L; | |
2021 fep = __ pc(); __ push(ftos); __ jmp(L); | |
2022 dep = __ pc(); __ push(dtos); __ jmp(L); | |
2023 lep = __ pc(); __ push(ltos); __ jmp(L); | |
2024 aep = __ pc(); __ push(atos); __ jmp(L); | |
2025 bep = cep = sep = // fall through | |
2026 iep = __ pc(); __ push(itos); // fall through | |
2027 vep = __ pc(); __ bind(L); // fall through | |
2028 generate_and_dispatch(t); | |
2029 } | |
2030 | |
2031 //------------------------------------------------------------------------------------------------------------------------ | |
2032 // Generation of individual instructions | |
2033 | |
2034 // helpers for generate_and_dispatch | |
2035 | |
2036 | |
2037 | |
2038 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
2039 : TemplateInterpreterGenerator(code) { | |
2040 generate_all(); // down here so it can be "virtual" | |
2041 } | |
2042 | |
2043 //------------------------------------------------------------------------------------------------------------------------ | |
2044 | |
2045 // Non-product code | |
2046 #ifndef PRODUCT | |
2047 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
2048 address entry = __ pc(); | |
2049 | |
2050 // prepare expression stack | |
304 | 2051 __ pop(rcx); // pop return address so expression stack is 'pure' |
0 | 2052 __ push(state); // save tosca |
2053 | |
2054 // pass tosca registers as arguments & call tracer | |
2055 __ call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), rcx, rax, rdx); | |
304 | 2056 __ mov(rcx, rax); // make sure return address is not destroyed by pop(state) |
0 | 2057 __ pop(state); // restore tosca |
2058 | |
2059 // return | |
2060 __ jmp(rcx); | |
2061 | |
2062 return entry; | |
2063 } | |
2064 | |
2065 | |
2066 void TemplateInterpreterGenerator::count_bytecode() { | |
304 | 2067 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); |
0 | 2068 } |
2069 | |
2070 | |
2071 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
304 | 2072 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); |
0 | 2073 } |
2074 | |
2075 | |
2076 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
2077 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
2078 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
2079 __ orl(rbx, ((int)t->bytecode()) << BytecodePairHistogram::log2_number_of_codes); | |
2080 ExternalAddress table((address) BytecodePairHistogram::_counters); | |
2081 Address index(noreg, rbx, Address::times_4); | |
304 | 2082 __ incrementl(ArrayAddress(table, index)); |
0 | 2083 } |
2084 | |
2085 | |
2086 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
2087 // Call a little run-time stub to avoid blow-up for each bytecode. | |
2088 // The run-time runtime saves the right registers, depending on | |
2089 // the tosca in-state for the given template. | |
2090 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
2091 "entry must have been generated"); | |
2092 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); | |
2093 } | |
2094 | |
2095 | |
2096 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
2097 Label L; | |
2098 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
2099 StopInterpreterAt); | |
2100 __ jcc(Assembler::notEqual, L); | |
2101 __ int3(); | |
2102 __ bind(L); | |
2103 } | |
2104 #endif // !PRODUCT | |
2105 #endif // CC_INTERP |