Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 12962:5ccbab1c69f3
8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by: kvn, twisti
| author | roland |
|---|---|
| date | Tue, 22 Oct 2013 09:51:47 +0200 |
| parents | ce0cc25bc5e2 |
| children | bd3237e0e18d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/deoptimization.hpp" | |
| 40 #include "runtime/frame.inline.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 42 #include "runtime/stubRoutines.hpp" | |
| 43 #include "runtime/synchronizer.hpp" | |
| 44 #include "runtime/timer.hpp" | |
| 45 #include "runtime/vframeArray.hpp" | |
| 46 #include "utilities/debug.hpp" | |
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47 #include "utilities/macros.hpp" |
| 0 | 48 |
| 49 #define __ _masm-> | |
| 50 | |
| 304 | 51 #ifndef CC_INTERP |
| 52 | |
| 0 | 53 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
| 54 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
| 55 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
| 56 | |
| 57 //----------------------------------------------------------------------------- | |
| 58 | |
| 59 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 60 address entry = __ pc(); | |
| 61 | |
| 62 #ifdef ASSERT | |
| 63 { | |
| 64 Label L; | |
| 304 | 65 __ lea(rax, Address(rbp, |
| 66 frame::interpreter_frame_monitor_block_top_offset * | |
| 67 wordSize)); | |
| 68 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
| 69 // grows negative) | |
| 0 | 70 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
| 71 __ stop ("interpreter frame not set up"); | |
| 72 __ bind(L); | |
| 73 } | |
| 74 #endif // ASSERT | |
| 75 // Restore bcp under the assumption that the current frame is still | |
| 76 // interpreted | |
| 77 __ restore_bcp(); | |
| 78 | |
| 79 // expression stack must be empty before entering the VM if an | |
| 80 // exception happened | |
| 81 __ empty_expression_stack(); | |
| 82 // throw exception | |
| 83 __ call_VM(noreg, | |
| 84 CAST_FROM_FN_PTR(address, | |
| 85 InterpreterRuntime::throw_StackOverflowError)); | |
| 86 return entry; | |
| 87 } | |
| 88 | |
| 89 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
| 90 const char* name) { | |
| 91 address entry = __ pc(); | |
| 92 // expression stack must be empty before entering the VM if an | |
| 93 // exception happened | |
| 94 __ empty_expression_stack(); | |
| 95 // setup parameters | |
| 96 // ??? convention: expect aberrant index in register ebx | |
| 97 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 98 __ call_VM(noreg, | |
| 99 CAST_FROM_FN_PTR(address, | |
| 100 InterpreterRuntime:: | |
| 101 throw_ArrayIndexOutOfBoundsException), | |
| 102 c_rarg1, rbx); | |
| 103 return entry; | |
| 104 } | |
| 105 | |
| 106 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 107 address entry = __ pc(); | |
| 108 | |
| 109 // object is at TOS | |
| 304 | 110 __ pop(c_rarg1); |
| 0 | 111 |
| 112 // expression stack must be empty before entering the VM if an | |
| 113 // exception happened | |
| 114 __ empty_expression_stack(); | |
| 115 | |
| 116 __ call_VM(noreg, | |
| 117 CAST_FROM_FN_PTR(address, | |
| 118 InterpreterRuntime:: | |
| 119 throw_ClassCastException), | |
| 120 c_rarg1); | |
| 121 return entry; | |
| 122 } | |
| 123 | |
| 124 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
| 125 const char* name, const char* message, bool pass_oop) { | |
| 126 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 127 address entry = __ pc(); | |
| 128 if (pass_oop) { | |
| 129 // object is at TOS | |
| 304 | 130 __ pop(c_rarg2); |
| 0 | 131 } |
| 132 // expression stack must be empty before entering the VM if an | |
| 133 // exception happened | |
| 134 __ empty_expression_stack(); | |
| 135 // setup parameters | |
| 136 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 137 if (pass_oop) { | |
| 138 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
| 139 InterpreterRuntime:: | |
| 140 create_klass_exception), | |
| 141 c_rarg1, c_rarg2); | |
| 142 } else { | |
| 143 // kind of lame ExternalAddress can't take NULL because | |
| 144 // external_word_Relocation will assert. | |
| 145 if (message != NULL) { | |
| 146 __ lea(c_rarg2, ExternalAddress((address)message)); | |
| 147 } else { | |
| 148 __ movptr(c_rarg2, NULL_WORD); | |
| 149 } | |
| 150 __ call_VM(rax, | |
| 151 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
| 152 c_rarg1, c_rarg2); | |
| 153 } | |
| 154 // throw exception | |
| 155 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 156 return entry; | |
| 157 } | |
| 158 | |
| 159 | |
| 160 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 161 address entry = __ pc(); | |
| 162 // NULL last_sp until next java call | |
| 304 | 163 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 164 __ dispatch_next(state); |
| 165 return entry; | |
| 166 } | |
| 167 | |
| 168 | |
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169 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
| 0 | 170 address entry = __ pc(); |
| 171 | |
| 172 // Restore stack bottom in case i2c adjusted stack | |
| 304 | 173 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 0 | 174 // and NULL it as marker that esp is now tos until next java call |
| 304 | 175 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 176 |
| 177 __ restore_bcp(); | |
| 178 __ restore_locals(); | |
| 304 | 179 |
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180 if (state == atos) { |
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181 Register mdp = rbx; |
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182 Register tmp = rcx; |
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183 __ profile_return_type(mdp, rax, tmp); |
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184 } |
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185 |
| 1108 | 186 Label L_got_cache, L_giant_index; |
| 187 if (EnableInvokeDynamic) { | |
| 188 __ cmpb(Address(r13, 0), Bytecodes::_invokedynamic); | |
| 189 __ jcc(Assembler::equal, L_giant_index); | |
| 190 } | |
| 1565 | 191 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
| 1108 | 192 __ bind(L_got_cache); |
| 0 | 193 __ movl(rbx, Address(rbx, rcx, |
| 1108 | 194 Address::times_ptr, |
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195 in_bytes(ConstantPoolCache::base_offset()) + |
| 0 | 196 3 * wordSize)); |
| 197 __ andl(rbx, 0xFF); | |
| 304 | 198 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 199 __ dispatch_next(state, step); |
| 1108 | 200 |
| 201 // out of the main line of code... | |
| 202 if (EnableInvokeDynamic) { | |
| 203 __ bind(L_giant_index); | |
| 1565 | 204 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
| 1108 | 205 __ jmp(L_got_cache); |
| 206 } | |
| 207 | |
| 0 | 208 return entry; |
| 209 } | |
| 210 | |
| 211 | |
| 212 address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, | |
| 213 int step) { | |
| 214 address entry = __ pc(); | |
| 215 // NULL last_sp until next java call | |
| 304 | 216 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 217 __ restore_bcp(); |
| 218 __ restore_locals(); | |
| 219 // handle exceptions | |
| 220 { | |
| 221 Label L; | |
| 304 | 222 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 223 __ jcc(Assembler::zero, L); |
| 224 __ call_VM(noreg, | |
| 225 CAST_FROM_FN_PTR(address, | |
| 226 InterpreterRuntime::throw_pending_exception)); | |
| 227 __ should_not_reach_here(); | |
| 228 __ bind(L); | |
| 229 } | |
| 230 __ dispatch_next(state, step); | |
| 231 return entry; | |
| 232 } | |
| 233 | |
| 234 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 235 int i = 0; | |
| 236 switch (type) { | |
| 237 case T_BOOLEAN: i = 0; break; | |
| 238 case T_CHAR : i = 1; break; | |
| 239 case T_BYTE : i = 2; break; | |
| 240 case T_SHORT : i = 3; break; | |
| 241 case T_INT : i = 4; break; | |
| 242 case T_LONG : i = 5; break; | |
| 243 case T_VOID : i = 6; break; | |
| 244 case T_FLOAT : i = 7; break; | |
| 245 case T_DOUBLE : i = 8; break; | |
| 246 case T_OBJECT : i = 9; break; | |
| 247 case T_ARRAY : i = 9; break; | |
| 248 default : ShouldNotReachHere(); | |
| 249 } | |
| 250 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
| 251 "index out of bounds"); | |
| 252 return i; | |
| 253 } | |
| 254 | |
| 255 | |
| 256 address TemplateInterpreterGenerator::generate_result_handler_for( | |
| 257 BasicType type) { | |
| 258 address entry = __ pc(); | |
| 259 switch (type) { | |
| 260 case T_BOOLEAN: __ c2bool(rax); break; | |
| 261 case T_CHAR : __ movzwl(rax, rax); break; | |
| 262 case T_BYTE : __ sign_extend_byte(rax); break; | |
| 263 case T_SHORT : __ sign_extend_short(rax); break; | |
| 264 case T_INT : /* nothing to do */ break; | |
| 265 case T_LONG : /* nothing to do */ break; | |
| 266 case T_VOID : /* nothing to do */ break; | |
| 267 case T_FLOAT : /* nothing to do */ break; | |
| 268 case T_DOUBLE : /* nothing to do */ break; | |
| 269 case T_OBJECT : | |
| 270 // retrieve result from frame | |
| 304 | 271 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
| 0 | 272 // and verify it |
| 273 __ verify_oop(rax); | |
| 274 break; | |
| 275 default : ShouldNotReachHere(); | |
| 276 } | |
| 277 __ ret(0); // return from result handler | |
| 278 return entry; | |
| 279 } | |
| 280 | |
| 281 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
| 282 TosState state, | |
| 283 address runtime_entry) { | |
| 284 address entry = __ pc(); | |
| 285 __ push(state); | |
| 286 __ call_VM(noreg, runtime_entry); | |
| 287 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
| 288 return entry; | |
| 289 } | |
| 290 | |
| 291 | |
| 292 | |
| 293 // Helpers for commoning out cases in the various type of method entries. | |
| 294 // | |
| 295 | |
| 296 | |
| 297 // increment invocation count & check for overflow | |
| 298 // | |
| 299 // Note: checking for negative value instead of overflow | |
| 300 // so we have a 'sticky' overflow test | |
| 301 // | |
| 302 // rbx: method | |
| 303 // ecx: invocation counter | |
| 304 // | |
| 305 void InterpreterGenerator::generate_counter_incr( | |
| 306 Label* overflow, | |
| 307 Label* profile_method, | |
| 308 Label* profile_method_continue) { | |
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309 Label done; |
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310 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
| 1783 | 311 if (TieredCompilation) { |
| 312 int increment = InvocationCounter::count_increment; | |
| 313 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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314 Label no_mdo; |
| 1783 | 315 if (ProfileInterpreter) { |
| 316 // Are we profiling? | |
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317 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
| 1783 | 318 __ testptr(rax, rax); |
| 319 __ jccb(Assembler::zero, no_mdo); | |
| 320 // Increment counter in the MDO | |
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321 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 322 in_bytes(InvocationCounter::counter_offset())); |
| 323 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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324 __ jmp(done); |
| 1783 | 325 } |
| 326 __ bind(no_mdo); | |
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327 // Increment counter in MethodCounters |
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328 const Address invocation_counter(rax, |
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329 MethodCounters::invocation_counter_offset() + |
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330 InvocationCounter::counter_offset()); |
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331 __ get_method_counters(rbx, rax, done); |
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332 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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333 false, Assembler::zero, overflow); |
| 1783 | 334 __ bind(done); |
| 335 } else { | |
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336 const Address backedge_counter(rax, |
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337 MethodCounters::backedge_counter_offset() + |
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338 InvocationCounter::counter_offset()); |
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339 const Address invocation_counter(rax, |
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340 MethodCounters::invocation_counter_offset() + |
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341 InvocationCounter::counter_offset()); |
| 0 | 342 |
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343 __ get_method_counters(rbx, rax, done); |
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344 |
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345 if (ProfileInterpreter) { |
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346 __ incrementl(Address(rax, |
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347 MethodCounters::interpreter_invocation_counter_offset())); |
| 1783 | 348 } |
| 349 // Update standard invocation counters | |
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350 __ movl(rcx, invocation_counter); |
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351 __ incrementl(rcx, InvocationCounter::count_increment); |
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352 __ movl(invocation_counter, rcx); // save invocation count |
| 0 | 353 |
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354 __ movl(rax, backedge_counter); // load backedge counter |
| 1783 | 355 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
| 0 | 356 |
| 1783 | 357 __ addl(rcx, rax); // add both counters |
| 0 | 358 |
| 1783 | 359 // profile_method is non-null only for interpreted method so |
| 360 // profile_method != NULL == !native_call | |
| 361 | |
| 362 if (ProfileInterpreter && profile_method != NULL) { | |
| 363 // Test to see if we should create a method data oop | |
| 364 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
| 365 __ jcc(Assembler::less, *profile_method_continue); | |
| 0 | 366 |
| 1783 | 367 // if no method data exists, go to profile_method |
| 368 __ test_method_data_pointer(rax, *profile_method); | |
| 369 } | |
| 370 | |
| 371 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
| 372 __ jcc(Assembler::aboveEqual, *overflow); | |
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373 __ bind(done); |
| 0 | 374 } |
| 375 } | |
| 376 | |
| 377 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
| 378 | |
| 379 // Asm interpreter on entry | |
| 380 // r14 - locals | |
| 381 // r13 - bcp | |
| 382 // rbx - method | |
| 383 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
| 384 // rbp - interpreter frame | |
| 385 | |
| 386 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
| 387 // Everything as it was on entry | |
| 388 // rdx is not restored. Doesn't appear to really be set. | |
| 389 | |
| 390 // InterpreterRuntime::frequency_counter_overflow takes two | |
| 391 // arguments, the first (thread) is passed by call_VM, the second | |
| 392 // indicates if the counter overflow occurs at a backwards branch | |
| 393 // (NULL bcp). We pass zero for it. The call returns the address | |
| 394 // of the verified entry point for the method or NULL if the | |
| 395 // compilation did not complete (either went background or bailed | |
| 396 // out). | |
| 397 __ movl(c_rarg1, 0); | |
| 398 __ call_VM(noreg, | |
| 399 CAST_FROM_FN_PTR(address, | |
| 400 InterpreterRuntime::frequency_counter_overflow), | |
| 401 c_rarg1); | |
| 402 | |
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403 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
| 0 | 404 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
| 405 // and jump to the interpreted entry. | |
| 406 __ jmp(*do_continue, relocInfo::none); | |
| 407 } | |
| 408 | |
| 409 // See if we've got enough room on the stack for locals plus overhead. | |
| 410 // The expression stack grows down incrementally, so the normal guard | |
| 411 // page mechanism will work for that. | |
| 412 // | |
| 413 // NOTE: Since the additional locals are also always pushed (wasn't | |
| 414 // obvious in generate_method_entry) so the guard should work for them | |
| 415 // too. | |
| 416 // | |
| 417 // Args: | |
| 418 // rdx: number of additional locals this frame needs (what we must check) | |
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419 // rbx: Method* |
| 0 | 420 // |
| 421 // Kills: | |
| 422 // rax | |
| 423 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
| 424 | |
| 425 // monitor entry size: see picture of stack set | |
| 426 // (generate_method_entry) and frame_amd64.hpp | |
| 427 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 428 | |
| 429 // total overhead size: entry_size + (saved rbp through expr stack | |
| 430 // bottom). be sure to change this if you add/subtract anything | |
| 431 // to/from the overhead area | |
| 432 const int overhead_size = | |
| 433 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
| 434 | |
| 435 const int page_size = os::vm_page_size(); | |
| 436 | |
| 437 Label after_frame_check; | |
| 438 | |
| 439 // see if the frame is greater than one page in size. If so, | |
| 440 // then we need to verify there is enough stack space remaining | |
| 441 // for the additional locals. | |
| 1506 | 442 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
| 0 | 443 __ jcc(Assembler::belowEqual, after_frame_check); |
| 444 | |
| 445 // compute rsp as if this were going to be the last frame on | |
| 446 // the stack before the red zone | |
| 447 | |
| 448 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
| 449 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
| 450 | |
| 451 // locals + overhead, in bytes | |
| 304 | 452 __ mov(rax, rdx); |
| 1506 | 453 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
| 304 | 454 __ addptr(rax, overhead_size); |
| 0 | 455 |
| 456 #ifdef ASSERT | |
| 457 Label stack_base_okay, stack_size_okay; | |
| 458 // verify that thread stack base is non-zero | |
| 304 | 459 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
| 0 | 460 __ jcc(Assembler::notEqual, stack_base_okay); |
| 461 __ stop("stack base is zero"); | |
| 462 __ bind(stack_base_okay); | |
| 463 // verify that thread stack size is non-zero | |
| 304 | 464 __ cmpptr(stack_size, 0); |
| 0 | 465 __ jcc(Assembler::notEqual, stack_size_okay); |
| 466 __ stop("stack size is zero"); | |
| 467 __ bind(stack_size_okay); | |
| 468 #endif | |
| 469 | |
| 470 // Add stack base to locals and subtract stack size | |
| 304 | 471 __ addptr(rax, stack_base); |
| 472 __ subptr(rax, stack_size); | |
| 0 | 473 |
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474 // Use the maximum number of pages we might bang. |
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475 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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476 (StackRedPages+StackYellowPages); |
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477 |
| 0 | 478 // add in the red and yellow zone sizes |
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479 __ addptr(rax, max_pages * page_size); |
| 0 | 480 |
| 481 // check against the current stack bottom | |
| 304 | 482 __ cmpptr(rsp, rax); |
| 0 | 483 __ jcc(Assembler::above, after_frame_check); |
| 484 | |
| 4743 | 485 // Restore sender's sp as SP. This is necessary if the sender's |
| 486 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
| 487 // and safer anyway in case of JSR292 adaptations. | |
| 488 | |
| 489 __ pop(rax); // return address must be moved if SP is changed | |
| 490 __ mov(rsp, r13); | |
| 491 __ push(rax); | |
| 492 | |
| 493 // Note: the restored frame is not necessarily interpreted. | |
| 494 // Use the shared runtime version of the StackOverflowError. | |
| 495 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 496 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
| 0 | 497 |
| 498 // all done with frame size check | |
| 499 __ bind(after_frame_check); | |
| 500 } | |
| 501 | |
| 502 // Allocate monitor and lock method (asm interpreter) | |
| 503 // | |
| 504 // Args: | |
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505 // rbx: Method* |
| 0 | 506 // r14: locals |
| 507 // | |
| 508 // Kills: | |
| 509 // rax | |
| 510 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
| 511 // rscratch1, rscratch2 (scratch regs) | |
| 512 void InterpreterGenerator::lock_method(void) { | |
| 513 // synchronize method | |
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514 const Address access_flags(rbx, Method::access_flags_offset()); |
| 0 | 515 const Address monitor_block_top( |
| 516 rbp, | |
| 517 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 518 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 519 | |
| 520 #ifdef ASSERT | |
| 521 { | |
| 522 Label L; | |
| 523 __ movl(rax, access_flags); | |
| 524 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 525 __ jcc(Assembler::notZero, L); | |
| 526 __ stop("method doesn't need synchronization"); | |
| 527 __ bind(L); | |
| 528 } | |
| 529 #endif // ASSERT | |
| 530 | |
| 531 // get synchronization object | |
| 532 { | |
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533 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 534 Label done; |
| 535 __ movl(rax, access_flags); | |
| 536 __ testl(rax, JVM_ACC_STATIC); | |
| 537 // get receiver (assume this is frequent case) | |
| 304 | 538 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
| 0 | 539 __ jcc(Assembler::zero, done); |
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540 __ movptr(rax, Address(rbx, Method::const_offset())); |
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541 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
| 304 | 542 __ movptr(rax, Address(rax, |
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543 ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 544 __ movptr(rax, Address(rax, mirror_offset)); |
| 0 | 545 |
| 546 #ifdef ASSERT | |
| 547 { | |
| 548 Label L; | |
| 304 | 549 __ testptr(rax, rax); |
| 0 | 550 __ jcc(Assembler::notZero, L); |
| 551 __ stop("synchronization object is NULL"); | |
| 552 __ bind(L); | |
| 553 } | |
| 554 #endif // ASSERT | |
| 555 | |
| 556 __ bind(done); | |
| 557 } | |
| 558 | |
| 559 // add space for monitor & lock | |
| 304 | 560 __ subptr(rsp, entry_size); // add space for a monitor entry |
| 561 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
| 0 | 562 // store object |
| 304 | 563 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 564 __ movptr(c_rarg1, rsp); // object address | |
| 0 | 565 __ lock_object(c_rarg1); |
| 566 } | |
| 567 | |
| 568 // Generate a fixed interpreter frame. This is identical setup for | |
| 569 // interpreted methods and for native methods hence the shared code. | |
| 570 // | |
| 571 // Args: | |
| 572 // rax: return address | |
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573 // rbx: Method* |
| 0 | 574 // r14: pointer to locals |
| 575 // r13: sender sp | |
| 576 // rdx: cp cache | |
| 577 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 578 // initialize fixed part of activation frame | |
| 304 | 579 __ push(rax); // save return address |
| 0 | 580 __ enter(); // save old & set new rbp |
| 304 | 581 __ push(r13); // set sender sp |
| 582 __ push((int)NULL_WORD); // leave last_sp as null | |
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583 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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584 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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585 __ push(rbx); // save Method* |
| 0 | 586 if (ProfileInterpreter) { |
| 587 Label method_data_continue; | |
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588 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 589 __ testptr(rdx, rdx); |
| 0 | 590 __ jcc(Assembler::zero, method_data_continue); |
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591 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
| 0 | 592 __ bind(method_data_continue); |
| 304 | 593 __ push(rdx); // set the mdp (method data pointer) |
| 0 | 594 } else { |
| 304 | 595 __ push(0); |
| 0 | 596 } |
| 597 | |
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598 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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599 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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600 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
| 304 | 601 __ push(rdx); // set constant pool cache |
| 602 __ push(r14); // set locals pointer | |
| 0 | 603 if (native_call) { |
| 304 | 604 __ push(0); // no bcp |
| 0 | 605 } else { |
| 304 | 606 __ push(r13); // set bcp |
| 0 | 607 } |
| 304 | 608 __ push(0); // reserve word for pointer to expression stack bottom |
| 609 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
| 0 | 610 } |
| 611 | |
| 612 // End of helpers | |
| 613 | |
| 304 | 614 // Various method entries |
| 615 //------------------------------------------------------------------------------------------------------------------------ | |
| 616 // | |
| 617 // | |
| 618 | |
| 619 // Call an accessor method (assuming it is resolved, otherwise drop | |
| 620 // into vanilla (slow path) entry | |
| 621 address InterpreterGenerator::generate_accessor_entry(void) { | |
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622 // rbx: Method* |
| 304 | 623 |
| 624 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
| 625 | |
| 626 address entry_point = __ pc(); | |
| 627 Label xreturn_path; | |
| 628 | |
| 629 // do fastpath for resolved accessor methods | |
| 630 if (UseFastAccessorMethods) { | |
| 631 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
| 632 // thereof; parameter size = 1 | |
| 633 // Note: We can only use this code if the getfield has been resolved | |
| 634 // and if we don't have a null-pointer exception => check for | |
| 635 // these conditions first and use slow path if necessary. | |
| 636 Label slow_path; | |
| 637 // If we need a safepoint check, generate full interpreter entry. | |
| 638 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 639 SafepointSynchronize::_not_synchronized); | |
| 640 | |
| 641 __ jcc(Assembler::notEqual, slow_path); | |
| 642 // rbx: method | |
| 643 __ movptr(rax, Address(rsp, wordSize)); | |
| 644 | |
| 645 // check if local 0 != NULL and read field | |
| 646 __ testptr(rax, rax); | |
| 647 __ jcc(Assembler::zero, slow_path); | |
| 648 | |
| 649 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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650 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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651 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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652 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 653 // Shift codes right to get the index on the right. |
| 654 // The bytecode fetched looks like <index><0xb4><0x2a> | |
| 655 __ shrl(rdx, 2 * BitsPerByte); | |
| 656 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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657 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
| 304 | 658 |
| 659 // rax: local 0 | |
| 660 // rbx: method | |
| 661 // rdx: constant pool cache index | |
| 662 // rdi: constant pool cache | |
| 663 | |
| 664 // check if getfield has been resolved and read constant pool cache entry | |
| 665 // check the validity of the cache entry by testing whether _indices field | |
| 666 // contains Bytecode::_getfield in b1 byte. | |
| 667 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
| 668 "adjust shift below"); | |
| 669 __ movl(rcx, | |
| 670 Address(rdi, | |
| 671 rdx, | |
| 672 Address::times_8, | |
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673 ConstantPoolCache::base_offset() + |
| 304 | 674 ConstantPoolCacheEntry::indices_offset())); |
| 675 __ shrl(rcx, 2 * BitsPerByte); | |
| 676 __ andl(rcx, 0xFF); | |
| 677 __ cmpl(rcx, Bytecodes::_getfield); | |
| 678 __ jcc(Assembler::notEqual, slow_path); | |
| 679 | |
| 680 // Note: constant pool entry is not valid before bytecode is resolved | |
| 681 __ movptr(rcx, | |
| 682 Address(rdi, | |
| 683 rdx, | |
| 684 Address::times_8, | |
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685 ConstantPoolCache::base_offset() + |
| 304 | 686 ConstantPoolCacheEntry::f2_offset())); |
| 687 // edx: flags | |
| 688 __ movl(rdx, | |
| 689 Address(rdi, | |
| 690 rdx, | |
| 691 Address::times_8, | |
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692 ConstantPoolCache::base_offset() + |
| 304 | 693 ConstantPoolCacheEntry::flags_offset())); |
| 694 | |
| 695 Label notObj, notInt, notByte, notShort; | |
| 696 const Address field_address(rax, rcx, Address::times_1); | |
| 697 | |
| 698 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 699 // because they are different sizes. | |
| 700 // Use the type from the constant pool cache | |
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701 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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702 // Make sure we don't need to mask edx after the above shift |
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703 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 704 |
| 705 __ cmpl(rdx, atos); | |
| 706 __ jcc(Assembler::notEqual, notObj); | |
| 707 // atos | |
| 708 __ load_heap_oop(rax, field_address); | |
| 709 __ jmp(xreturn_path); | |
| 710 | |
| 711 __ bind(notObj); | |
| 712 __ cmpl(rdx, itos); | |
| 713 __ jcc(Assembler::notEqual, notInt); | |
| 714 // itos | |
| 715 __ movl(rax, field_address); | |
| 716 __ jmp(xreturn_path); | |
| 717 | |
| 718 __ bind(notInt); | |
| 719 __ cmpl(rdx, btos); | |
| 720 __ jcc(Assembler::notEqual, notByte); | |
| 721 // btos | |
| 722 __ load_signed_byte(rax, field_address); | |
| 723 __ jmp(xreturn_path); | |
| 724 | |
| 725 __ bind(notByte); | |
| 726 __ cmpl(rdx, stos); | |
| 727 __ jcc(Assembler::notEqual, notShort); | |
| 728 // stos | |
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729 __ load_signed_short(rax, field_address); |
| 304 | 730 __ jmp(xreturn_path); |
| 731 | |
| 732 __ bind(notShort); | |
| 733 #ifdef ASSERT | |
| 734 Label okay; | |
| 735 __ cmpl(rdx, ctos); | |
| 736 __ jcc(Assembler::equal, okay); | |
| 737 __ stop("what type is this?"); | |
| 738 __ bind(okay); | |
| 739 #endif | |
| 740 // ctos | |
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741 __ load_unsigned_short(rax, field_address); |
| 304 | 742 |
| 743 __ bind(xreturn_path); | |
| 744 | |
| 745 // _ireturn/_areturn | |
| 746 __ pop(rdi); | |
| 747 __ mov(rsp, r13); | |
| 748 __ jmp(rdi); | |
| 749 __ ret(0); | |
| 750 | |
| 751 // generate a vanilla interpreter entry as the slow path | |
| 752 __ bind(slow_path); | |
| 753 (void) generate_normal_entry(false); | |
| 754 } else { | |
| 755 (void) generate_normal_entry(false); | |
| 756 } | |
| 757 | |
| 758 return entry_point; | |
| 759 } | |
| 760 | |
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761 // Method entry for java.lang.ref.Reference.get. |
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762 address InterpreterGenerator::generate_Reference_get_entry(void) { |
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763 #if INCLUDE_ALL_GCS |
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764 // Code: _aload_0, _getfield, _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
765 // parameter size = 1 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
766 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
767 // The code that gets generated by this routine is split into 2 parts: |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
768 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
769 // 2. The slow path - which is an expansion of the regular method entry. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
770 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
771 // Notes:- |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
772 // * In the G1 code we do not check whether we need to block for |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
773 // a safepoint. If G1 is enabled then we must execute the specialized |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
774 // code for Reference.get (except when the Reference object is null) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
775 // so that we can log the value in the referent field with an SATB |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
776 // update buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
777 // If the code for the getfield template is modified so that the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
778 // G1 pre-barrier code is executed when the current method is |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
779 // Reference.get() then going through the normal method entry |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
780 // will be fine. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
781 // * The G1 code can, however, check the receiver object (the instance |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
782 // of java.lang.Reference) and jump to the slow path if null. If the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
783 // Reference object is null then we obviously cannot fetch the referent |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
784 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
785 // regular method entry code to generate the NPE. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
786 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
787 // This code is based on generate_accessor_enty. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
788 // |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
789 // rbx: Method* |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
790 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
791 // r13: senderSP must preserve for slow path, set SP to it on fast path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
792 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
793 address entry = __ pc(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
794 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
795 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
796 guarantee(referent_offset > 0, "referent offset not initialized"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
797 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
798 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
799 Label slow_path; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
800 // rbx: method |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
801 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
802 // Check if local 0 != NULL |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
803 // If the receiver is null then it is OK to jump to the slow path. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
804 __ movptr(rax, Address(rsp, wordSize)); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
805 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
806 __ testptr(rax, rax); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
807 __ jcc(Assembler::zero, slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
808 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
809 // rax: local 0 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
810 // rbx: method (but can be used as scratch now) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
811 // rdx: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
812 // rdi: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
813 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
814 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
815 // 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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diff
changeset
|
816 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
817 // Load the value of the referent field. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
818 const Address field_address(rax, referent_offset); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
819 __ load_heap_oop(rax, field_address); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
820 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
821 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
822 // 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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diff
changeset
|
823 __ g1_write_barrier_pre(noreg /* obj */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
824 rax /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
825 r15_thread /* thread */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
826 rbx /* tmp */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
827 true /* tosca_live */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
828 true /* expand_call */); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
829 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
830 // _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
831 __ pop(rdi); // get return address |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
832 __ mov(rsp, r13); // set sp to sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
833 __ jmp(rdi); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
834 __ ret(0); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
835 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
836 // generate a vanilla interpreter entry as the slow path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
837 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
838 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
839 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
840 return entry; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
841 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7402
diff
changeset
|
842 #endif // INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
843 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
844 // If G1 is not enabled then attempt to go through the accessor entry point |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
845 // Reference.get is an accessor |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
846 return generate_accessor_entry(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
847 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
848 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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10393
diff
changeset
|
849 /** |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
850 * Method entry for static native methods: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
851 * int java.util.zip.CRC32.update(int crc, int b) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
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|
852 */ |
|
b800986664f4
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drchase
parents:
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changeset
|
853 address InterpreterGenerator::generate_CRC32_update_entry() { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
854 if (UseCRC32Intrinsics) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
855 address entry = __ pc(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
changeset
|
856 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
changeset
|
857 // rbx,: Method* |
|
12070
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
parents:
11080
diff
changeset
|
858 // r13: senderSP must preserved for slow path, set SP to it on fast path |
|
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
parents:
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diff
changeset
|
859 // c_rarg0: scratch (rdi on non-Win64, rcx on Win64) |
|
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
parents:
11080
diff
changeset
|
860 // c_rarg1: scratch (rsi on non-Win64, rdx on Win64) |
|
11080
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drchase
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diff
changeset
|
861 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
862 Label slow_path; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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changeset
|
863 // If we need a safepoint check, generate full interpreter entry. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
864 ExternalAddress state(SafepointSynchronize::address_of_state()); |
|
b800986664f4
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drchase
parents:
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diff
changeset
|
865 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
866 SafepointSynchronize::_not_synchronized); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
867 __ jcc(Assembler::notEqual, slow_path); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
changeset
|
868 |
|
b800986664f4
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drchase
parents:
10393
diff
changeset
|
869 // We don't generate local frame and don't align stack because |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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changeset
|
870 // we call stub code and there is no safepoint on this path. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
changeset
|
871 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
872 // Load parameters |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
873 const Register crc = rax; // crc |
|
12070
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
parents:
11080
diff
changeset
|
874 const Register val = c_rarg0; // source java byte value |
|
afbe18ae0905
8022441: Bad code generated for certain interpreted CRC intrinsics, 2 cases
bharadwaj
parents:
11080
diff
changeset
|
875 const Register tbl = c_rarg1; // scratch |
|
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876 |
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877 // Arguments are reversed on java expression stack |
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878 __ movl(val, Address(rsp, wordSize)); // byte value |
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879 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
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880 |
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881 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
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882 __ notl(crc); // ~crc |
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883 __ update_byte_crc32(crc, val, tbl); |
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884 __ notl(crc); // ~crc |
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885 // result in rax |
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886 |
|
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887 // _areturn |
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888 __ pop(rdi); // get return address |
|
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889 __ mov(rsp, r13); // set sp to sender sp |
|
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890 __ jmp(rdi); |
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891 |
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892 // generate a vanilla native entry as the slow path |
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893 __ bind(slow_path); |
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894 |
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895 (void) generate_native_entry(false); |
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|
896 |
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897 return entry; |
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898 } |
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899 return generate_native_entry(false); |
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900 } |
|
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|
901 |
|
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|
902 /** |
|
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|
903 * Method entry for static native methods: |
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904 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
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905 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
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906 */ |
|
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|
907 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
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908 if (UseCRC32Intrinsics) { |
|
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|
909 address entry = __ pc(); |
|
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|
910 |
|
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|
911 // rbx,: Method* |
|
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912 // r13: senderSP must preserved for slow path, set SP to it on fast path |
|
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913 |
|
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|
914 Label slow_path; |
|
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915 // If we need a safepoint check, generate full interpreter entry. |
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916 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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917 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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918 SafepointSynchronize::_not_synchronized); |
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919 __ jcc(Assembler::notEqual, slow_path); |
|
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920 |
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921 // We don't generate local frame and don't align stack because |
|
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922 // we call stub code and there is no safepoint on this path. |
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923 |
|
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|
924 // Load parameters |
|
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925 const Register crc = c_rarg0; // crc |
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926 const Register buf = c_rarg1; // source java byte array address |
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927 const Register len = c_rarg2; // length |
|
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928 const Register off = len; // offset (never overlaps with 'len') |
|
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929 |
|
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930 // Arguments are reversed on java expression stack |
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|
931 // Calculate address of start element |
|
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932 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
|
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933 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
|
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934 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
|
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935 __ addq(buf, off); // + offset |
|
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936 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
|
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937 } else { |
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938 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
|
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939 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
|
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940 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
|
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941 __ addq(buf, off); // + offset |
|
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942 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
|
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|
943 } |
|
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|
944 // Can now load 'len' since we're finished with 'off' |
|
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|
945 __ movl(len, Address(rsp, wordSize)); // Length |
|
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|
946 |
|
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|
947 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
|
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|
948 // result in rax |
|
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|
949 |
|
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|
950 // _areturn |
|
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|
951 __ pop(rdi); // get return address |
|
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|
952 __ mov(rsp, r13); // set sp to sender sp |
|
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|
953 __ jmp(rdi); |
|
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|
954 |
|
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|
955 // generate a vanilla native entry as the slow path |
|
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|
956 __ bind(slow_path); |
|
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|
957 |
|
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|
958 (void) generate_native_entry(false); |
|
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|
959 |
|
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|
960 return entry; |
|
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|
961 } |
|
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|
962 return generate_native_entry(false); |
|
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963 } |
|
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|
964 |
| 0 | 965 // Interpreter stub for calling a native method. (asm interpreter) |
| 966 // This sets up a somewhat different looking stack for calling the | |
| 967 // native method than the typical interpreter frame setup. | |
| 968 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 969 // determine code generation flags | |
| 970 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 971 | |
|
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|
972 // rbx: Method* |
| 0 | 973 // r13: sender sp |
| 974 | |
| 975 address entry_point = __ pc(); | |
| 976 | |
|
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|
977 const Address constMethod (rbx, Method::const_offset()); |
|
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978 const Address access_flags (rbx, Method::access_flags_offset()); |
|
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|
979 const Address size_of_parameters(rcx, ConstMethod:: |
|
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|
980 size_of_parameters_offset()); |
|
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|
981 |
| 0 | 982 |
| 983 // get parameter size (always needed) | |
|
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|
984 __ movptr(rcx, constMethod); |
|
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|
985 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 986 |
| 987 // native calls don't need the stack size check since they have no | |
| 988 // expression stack and the arguments are already on the stack and | |
| 989 // we only add a handful of words to the stack | |
| 990 | |
|
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|
991 // rbx: Method* |
| 0 | 992 // rcx: size of parameters |
| 993 // r13: sender sp | |
| 304 | 994 __ pop(rax); // get return address |
| 0 | 995 |
| 996 // for natives the size of locals is zero | |
| 997 | |
| 998 // compute beginning of parameters (r14) | |
| 304 | 999 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1000 |
| 1001 // add 2 zero-initialized slots for native calls | |
| 1002 // initialize result_handler slot | |
| 304 | 1003 __ push((int) NULL_WORD); |
| 0 | 1004 // slot for oop temp |
| 1005 // (static native method holder mirror/jni oop result) | |
| 304 | 1006 __ push((int) NULL_WORD); |
| 0 | 1007 |
| 1008 // initialize fixed part of activation frame | |
| 1009 generate_fixed_frame(true); | |
| 1010 | |
| 1011 // make sure method is native & not abstract | |
| 1012 #ifdef ASSERT | |
| 1013 __ movl(rax, access_flags); | |
| 1014 { | |
| 1015 Label L; | |
| 1016 __ testl(rax, JVM_ACC_NATIVE); | |
| 1017 __ jcc(Assembler::notZero, L); | |
| 1018 __ stop("tried to execute non-native method as native"); | |
| 1019 __ bind(L); | |
| 1020 } | |
| 1021 { | |
| 1022 Label L; | |
| 1023 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1024 __ jcc(Assembler::zero, L); | |
| 1025 __ stop("tried to execute abstract method in interpreter"); | |
| 1026 __ bind(L); | |
| 1027 } | |
| 1028 #endif | |
| 1029 | |
| 1030 // Since at this point in the method invocation the exception handler | |
| 1031 // would try to exit the monitor of synchronized methods which hasn't | |
| 1032 // been entered yet, we set the thread local variable | |
| 1033 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 1034 // check this flag. | |
| 1035 | |
| 1036 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1037 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1038 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1039 | |
| 1040 // increment invocation count & check for overflow | |
| 1041 Label invocation_counter_overflow; | |
| 1042 if (inc_counter) { | |
| 1043 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 1044 } | |
| 1045 | |
| 1046 Label continue_after_compile; | |
| 1047 __ bind(continue_after_compile); | |
| 1048 | |
| 1049 bang_stack_shadow_pages(true); | |
| 1050 | |
| 1051 // reset the _do_not_unlock_if_synchronized flag | |
| 1052 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1053 | |
| 1054 // check for synchronized methods | |
| 1055 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1056 // so method is not locked if overflows. | |
| 1057 if (synchronized) { | |
| 1058 lock_method(); | |
| 1059 } else { | |
| 1060 // no synchronization necessary | |
| 1061 #ifdef ASSERT | |
| 1062 { | |
| 1063 Label L; | |
| 1064 __ movl(rax, access_flags); | |
| 1065 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1066 __ jcc(Assembler::zero, L); | |
| 1067 __ stop("method needs synchronization"); | |
| 1068 __ bind(L); | |
| 1069 } | |
| 1070 #endif | |
| 1071 } | |
| 1072 | |
| 1073 // start execution | |
| 1074 #ifdef ASSERT | |
| 1075 { | |
| 1076 Label L; | |
| 1077 const Address monitor_block_top(rbp, | |
| 1078 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1079 __ movptr(rax, monitor_block_top); |
| 1080 __ cmpptr(rax, rsp); | |
| 0 | 1081 __ jcc(Assembler::equal, L); |
| 1082 __ stop("broken stack frame setup in interpreter"); | |
| 1083 __ bind(L); | |
| 1084 } | |
| 1085 #endif | |
| 1086 | |
| 1087 // jvmti support | |
| 1088 __ notify_method_entry(); | |
| 1089 | |
| 1090 // work registers | |
| 1091 const Register method = rbx; | |
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1092 const Register t = r11; |
| 0 | 1093 |
| 1094 // allocate space for parameters | |
| 1095 __ get_method(method); | |
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1096 __ movptr(t, Address(method, Method::const_offset())); |
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1097 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
| 1506 | 1098 __ shll(t, Interpreter::logStackElementSize); |
| 0 | 1099 |
| 304 | 1100 __ subptr(rsp, t); |
| 1101 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
| 605 | 1102 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
| 0 | 1103 |
| 1104 // get signature handler | |
| 1105 { | |
| 1106 Label L; | |
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1107 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 304 | 1108 __ testptr(t, t); |
| 0 | 1109 __ jcc(Assembler::notZero, L); |
| 1110 __ call_VM(noreg, | |
| 1111 CAST_FROM_FN_PTR(address, | |
| 1112 InterpreterRuntime::prepare_native_call), | |
| 1113 method); | |
| 1114 __ get_method(method); | |
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1115 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 0 | 1116 __ bind(L); |
| 1117 } | |
| 1118 | |
| 1119 // call signature handler | |
| 1120 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
| 1121 "adjust this code"); | |
| 1122 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
| 1123 "adjust this code"); | |
| 1124 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
| 1125 "adjust this code"); | |
| 1126 | |
| 1127 // The generated handlers do not touch RBX (the method oop). | |
| 1128 // However, large signatures cannot be cached and are generated | |
| 1129 // each time here. The slow-path generator can do a GC on return, | |
| 1130 // so we must reload it after the call. | |
| 1131 __ call(t); | |
| 1132 __ get_method(method); // slow path can do a GC, reload RBX | |
| 1133 | |
| 1134 | |
| 1135 // result handler is in rax | |
| 1136 // set result handler | |
| 304 | 1137 __ movptr(Address(rbp, |
| 1138 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
| 1139 rax); | |
| 0 | 1140 |
| 1141 // pass mirror handle if static call | |
| 1142 { | |
| 1143 Label L; | |
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1144 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1145 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1146 __ testl(t, JVM_ACC_STATIC); |
| 1147 __ jcc(Assembler::zero, L); | |
| 1148 // get mirror | |
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1149 __ movptr(t, Address(method, Method::const_offset())); |
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1150 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1151 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 1152 __ movptr(t, Address(t, mirror_offset)); |
| 0 | 1153 // copy mirror into activation frame |
| 304 | 1154 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
| 0 | 1155 t); |
| 1156 // pass handle to mirror | |
| 304 | 1157 __ lea(c_rarg1, |
| 1158 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
| 0 | 1159 __ bind(L); |
| 1160 } | |
| 1161 | |
| 1162 // get native function entry point | |
| 1163 { | |
| 1164 Label L; | |
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1165 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1166 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
| 1167 __ movptr(rscratch2, unsatisfied.addr()); | |
| 304 | 1168 __ cmpptr(rax, rscratch2); |
| 0 | 1169 __ jcc(Assembler::notEqual, L); |
| 1170 __ call_VM(noreg, | |
| 1171 CAST_FROM_FN_PTR(address, | |
| 1172 InterpreterRuntime::prepare_native_call), | |
| 1173 method); | |
| 1174 __ get_method(method); | |
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1175 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1176 __ bind(L); |
| 1177 } | |
| 1178 | |
| 1179 // pass JNIEnv | |
| 304 | 1180 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
| 0 | 1181 |
| 1182 // It is enough that the pc() points into the right code | |
| 1183 // segment. It does not have to be the correct return pc. | |
| 1184 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
| 1185 | |
| 1186 // change thread state | |
| 1187 #ifdef ASSERT | |
| 1188 { | |
| 1189 Label L; | |
| 1190 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
| 1191 __ cmpl(t, _thread_in_Java); | |
| 1192 __ jcc(Assembler::equal, L); | |
| 1193 __ stop("Wrong thread state in native stub"); | |
| 1194 __ bind(L); | |
| 1195 } | |
| 1196 #endif | |
| 1197 | |
| 1198 // Change state to native | |
| 1199 | |
| 1200 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1201 _thread_in_native); | |
| 1202 | |
| 1203 // Call the native method. | |
| 1204 __ call(rax); | |
| 1205 // result potentially in rax or xmm0 | |
| 1206 | |
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1207 // Verify or restore cpu control state after JNI call |
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1208 __ restore_cpu_control_state_after_jni(); |
| 0 | 1209 |
| 1210 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
| 1211 // in order to extract the result of a method call. If the order of these | |
| 1212 // pushes change or anything else is added to the stack then the code in | |
| 1213 // interpreter_frame_result must also change. | |
| 1214 | |
| 1215 __ push(dtos); | |
| 1216 __ push(ltos); | |
| 1217 | |
| 1218 // change thread state | |
| 1219 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1220 _thread_in_native_trans); | |
| 1221 | |
| 1222 if (os::is_MP()) { | |
| 1223 if (UseMembar) { | |
| 1224 // Force this write out before the read below | |
| 1225 __ membar(Assembler::Membar_mask_bits( | |
| 1226 Assembler::LoadLoad | Assembler::LoadStore | | |
| 1227 Assembler::StoreLoad | Assembler::StoreStore)); | |
| 1228 } else { | |
| 1229 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1230 // We use the current thread pointer to calculate a thread specific | |
| 1231 // offset to write to within the page. This minimizes bus traffic | |
| 1232 // due to cache line collision. | |
| 1233 __ serialize_memory(r15_thread, rscratch2); | |
| 1234 } | |
| 1235 } | |
| 1236 | |
| 1237 // check for safepoint operation in progress and/or pending suspend requests | |
| 1238 { | |
| 1239 Label Continue; | |
| 1240 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 1241 SafepointSynchronize::_not_synchronized); | |
| 1242 | |
| 1243 Label L; | |
| 1244 __ jcc(Assembler::notEqual, L); | |
| 1245 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
| 1246 __ jcc(Assembler::equal, Continue); | |
| 1247 __ bind(L); | |
| 1248 | |
| 1249 // Don't use call_VM as it will see a possible pending exception | |
| 1250 // and forward it and never return here preventing us from | |
| 1251 // clearing _last_native_pc down below. Also can't use | |
| 1252 // call_VM_leaf either as it will check to see if r13 & r14 are | |
| 1253 // preserved and correspond to the bcp/locals pointers. So we do a | |
| 1254 // runtime call by hand. | |
| 1255 // | |
| 304 | 1256 __ mov(c_rarg0, r15_thread); |
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1257 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1258 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1259 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1260 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
| 304 | 1261 __ mov(rsp, r12); // restore sp |
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1262 __ reinit_heapbase(); |
| 0 | 1263 __ bind(Continue); |
| 1264 } | |
| 1265 | |
| 1266 // change thread state | |
| 1267 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
| 1268 | |
| 1269 // reset_last_Java_frame | |
| 1270 __ reset_last_Java_frame(true, true); | |
| 1271 | |
| 1272 // reset handle block | |
| 304 | 1273 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
| 1274 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
| 0 | 1275 |
| 1276 // If result is an oop unbox and store it in frame where gc will see it | |
| 1277 // and result handler will pick it up | |
| 1278 | |
| 1279 { | |
| 1280 Label no_oop, store_result; | |
| 1281 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
| 304 | 1282 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
| 0 | 1283 __ jcc(Assembler::notEqual, no_oop); |
| 1284 // retrieve result | |
| 1285 __ pop(ltos); | |
| 304 | 1286 __ testptr(rax, rax); |
| 0 | 1287 __ jcc(Assembler::zero, store_result); |
| 304 | 1288 __ movptr(rax, Address(rax, 0)); |
| 0 | 1289 __ bind(store_result); |
| 304 | 1290 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
| 0 | 1291 // keep stack depth as expected by pushing oop which will eventually be discarde |
| 1292 __ push(ltos); | |
| 1293 __ bind(no_oop); | |
| 1294 } | |
| 1295 | |
| 1296 | |
| 1297 { | |
| 1298 Label no_reguard; | |
| 1299 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
| 1300 JavaThread::stack_guard_yellow_disabled); | |
| 1301 __ jcc(Assembler::notEqual, no_reguard); | |
| 1302 | |
| 304 | 1303 __ pusha(); // XXX only save smashed registers |
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1304 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1305 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1306 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1307 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
| 304 | 1308 __ mov(rsp, r12); // restore sp |
| 1309 __ popa(); // XXX only restore smashed registers | |
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1310 __ reinit_heapbase(); |
| 0 | 1311 |
| 1312 __ bind(no_reguard); | |
| 1313 } | |
| 1314 | |
| 1315 | |
| 1316 // The method register is junk from after the thread_in_native transition | |
| 1317 // until here. Also can't call_VM until the bcp has been | |
| 1318 // restored. Need bcp for throwing exception below so get it now. | |
| 1319 __ get_method(method); | |
| 1320 | |
| 1321 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
| 1322 // r13 == code_base() | |
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1323 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1324 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
| 0 | 1325 // handle exceptions (exception handling will handle unlocking!) |
| 1326 { | |
| 1327 Label L; | |
| 304 | 1328 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 1329 __ jcc(Assembler::zero, L); |
| 1330 // Note: At some point we may want to unify this with the code | |
| 1331 // used in call_VM_base(); i.e., we should use the | |
| 1332 // StubRoutines::forward_exception code. For now this doesn't work | |
| 1333 // here because the rsp is not correctly set at this point. | |
| 1334 __ MacroAssembler::call_VM(noreg, | |
| 1335 CAST_FROM_FN_PTR(address, | |
| 1336 InterpreterRuntime::throw_pending_exception)); | |
| 1337 __ should_not_reach_here(); | |
| 1338 __ bind(L); | |
| 1339 } | |
| 1340 | |
| 1341 // do unlocking if necessary | |
| 1342 { | |
| 1343 Label L; | |
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1344 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1345 __ testl(t, JVM_ACC_SYNCHRONIZED); |
| 1346 __ jcc(Assembler::zero, L); | |
| 1347 // the code below should be shared with interpreter macro | |
| 1348 // assembler implementation | |
| 1349 { | |
| 1350 Label unlock; | |
| 1351 // BasicObjectLock will be first in list, since this is a | |
| 1352 // synchronized method. However, need to check that the object | |
| 1353 // has not been unlocked by an explicit monitorexit bytecode. | |
| 1354 const Address monitor(rbp, | |
| 1355 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
| 1356 wordSize - sizeof(BasicObjectLock))); | |
| 1357 | |
| 1358 // monitor expect in c_rarg1 for slow unlock path | |
| 304 | 1359 __ lea(c_rarg1, monitor); // address of first monitor |
| 0 | 1360 |
| 304 | 1361 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 1362 __ testptr(t, t); | |
| 0 | 1363 __ jcc(Assembler::notZero, unlock); |
| 1364 | |
| 1365 // Entry already unlocked, need to throw exception | |
| 1366 __ MacroAssembler::call_VM(noreg, | |
| 1367 CAST_FROM_FN_PTR(address, | |
| 1368 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 1369 __ should_not_reach_here(); | |
| 1370 | |
| 1371 __ bind(unlock); | |
| 1372 __ unlock_object(c_rarg1); | |
| 1373 } | |
| 1374 __ bind(L); | |
| 1375 } | |
| 1376 | |
| 1377 // jvmti support | |
| 1378 // Note: This must happen _after_ handling/throwing any exceptions since | |
| 1379 // the exception handler code notifies the runtime of method exits | |
| 1380 // too. If this happens before, method entry/exit notifications are | |
| 1381 // not properly paired (was bug - gri 11/22/99). | |
| 1382 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1383 | |
| 1384 // restore potential result in edx:eax, call result handler to | |
| 1385 // restore potential result in ST0 & handle result | |
| 1386 | |
| 1387 __ pop(ltos); | |
| 1388 __ pop(dtos); | |
| 1389 | |
| 304 | 1390 __ movptr(t, Address(rbp, |
| 1391 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
| 0 | 1392 __ call(t); |
| 1393 | |
| 1394 // remove activation | |
| 304 | 1395 __ movptr(t, Address(rbp, |
| 1396 frame::interpreter_frame_sender_sp_offset * | |
| 1397 wordSize)); // get sender sp | |
| 0 | 1398 __ leave(); // remove frame anchor |
| 304 | 1399 __ pop(rdi); // get return address |
| 1400 __ mov(rsp, t); // set sp to sender sp | |
| 0 | 1401 __ jmp(rdi); |
| 1402 | |
| 1403 if (inc_counter) { | |
| 1404 // Handle overflow of counter and compile method | |
| 1405 __ bind(invocation_counter_overflow); | |
| 1406 generate_counter_overflow(&continue_after_compile); | |
| 1407 } | |
| 1408 | |
| 1409 return entry_point; | |
| 1410 } | |
| 1411 | |
| 1412 // | |
| 1413 // Generic interpreted method entry to (asm) interpreter | |
| 1414 // | |
| 1415 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1416 // determine code generation flags | |
| 1417 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1418 | |
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1419 // ebx: Method* |
| 0 | 1420 // r13: sender sp |
| 1421 address entry_point = __ pc(); | |
| 1422 | |
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1423 const Address constMethod(rbx, Method::const_offset()); |
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1424 const Address access_flags(rbx, Method::access_flags_offset()); |
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1425 const Address size_of_parameters(rdx, |
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1426 ConstMethod::size_of_parameters_offset()); |
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1427 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1428 |
| 0 | 1429 |
| 1430 // get parameter size (always needed) | |
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1431 __ movptr(rdx, constMethod); |
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1432 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1433 |
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1434 // rbx: Method* |
| 0 | 1435 // rcx: size of parameters |
| 1436 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
| 1437 | |
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1438 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
| 0 | 1439 __ subl(rdx, rcx); // rdx = no. of additional locals |
| 1440 | |
| 1441 // YYY | |
| 1442 // __ incrementl(rdx); | |
| 1443 // __ andl(rdx, -2); | |
| 1444 | |
| 1445 // see if we've got enough room on the stack for locals plus overhead. | |
| 1446 generate_stack_overflow_check(); | |
| 1447 | |
| 1448 // get return address | |
| 304 | 1449 __ pop(rax); |
| 0 | 1450 |
| 1451 // compute beginning of parameters (r14) | |
| 304 | 1452 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1453 |
| 1454 // rdx - # of additional locals | |
| 1455 // allocate space for locals | |
| 1456 // explicitly initialize locals | |
| 1457 { | |
| 1458 Label exit, loop; | |
| 1459 __ testl(rdx, rdx); | |
| 1460 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
| 1461 __ bind(loop); | |
| 304 | 1462 __ push((int) NULL_WORD); // initialize local variables |
| 0 | 1463 __ decrementl(rdx); // until everything initialized |
| 1464 __ jcc(Assembler::greater, loop); | |
| 1465 __ bind(exit); | |
| 1466 } | |
| 1467 | |
| 1468 // initialize fixed part of activation frame | |
| 1469 generate_fixed_frame(false); | |
| 1470 | |
| 1471 // make sure method is not native & not abstract | |
| 1472 #ifdef ASSERT | |
| 1473 __ movl(rax, access_flags); | |
| 1474 { | |
| 1475 Label L; | |
| 1476 __ testl(rax, JVM_ACC_NATIVE); | |
| 1477 __ jcc(Assembler::zero, L); | |
| 1478 __ stop("tried to execute native method as non-native"); | |
| 1479 __ bind(L); | |
| 1480 } | |
| 1481 { | |
| 1482 Label L; | |
| 1483 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1484 __ jcc(Assembler::zero, L); | |
| 1485 __ stop("tried to execute abstract method in interpreter"); | |
| 1486 __ bind(L); | |
| 1487 } | |
| 1488 #endif | |
| 1489 | |
| 1490 // Since at this point in the method invocation the exception | |
| 1491 // handler would try to exit the monitor of synchronized methods | |
| 1492 // which hasn't been entered yet, we set the thread local variable | |
| 1493 // _do_not_unlock_if_synchronized to true. The remove_activation | |
| 1494 // will check this flag. | |
| 1495 | |
| 1496 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1497 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1498 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1499 | |
|
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1500 __ profile_parameters_type(rax, rcx, rdx); |
| 0 | 1501 // increment invocation count & check for overflow |
| 1502 Label invocation_counter_overflow; | |
| 1503 Label profile_method; | |
| 1504 Label profile_method_continue; | |
| 1505 if (inc_counter) { | |
| 1506 generate_counter_incr(&invocation_counter_overflow, | |
| 1507 &profile_method, | |
| 1508 &profile_method_continue); | |
| 1509 if (ProfileInterpreter) { | |
| 1510 __ bind(profile_method_continue); | |
| 1511 } | |
| 1512 } | |
| 1513 | |
| 1514 Label continue_after_compile; | |
| 1515 __ bind(continue_after_compile); | |
| 1516 | |
| 1517 // check for synchronized interpreted methods | |
| 1518 bang_stack_shadow_pages(false); | |
| 1519 | |
| 1520 // reset the _do_not_unlock_if_synchronized flag | |
| 1521 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1522 | |
| 1523 // check for synchronized methods | |
| 1524 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1525 // so method is not locked if overflows. | |
| 1526 if (synchronized) { | |
| 1527 // Allocate monitor and lock method | |
| 1528 lock_method(); | |
| 1529 } else { | |
| 1530 // no synchronization necessary | |
| 1531 #ifdef ASSERT | |
| 1532 { | |
| 1533 Label L; | |
| 1534 __ movl(rax, access_flags); | |
| 1535 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1536 __ jcc(Assembler::zero, L); | |
| 1537 __ stop("method needs synchronization"); | |
| 1538 __ bind(L); | |
| 1539 } | |
| 1540 #endif | |
| 1541 } | |
| 1542 | |
| 1543 // start execution | |
| 1544 #ifdef ASSERT | |
| 1545 { | |
| 1546 Label L; | |
| 1547 const Address monitor_block_top (rbp, | |
| 1548 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1549 __ movptr(rax, monitor_block_top); |
| 1550 __ cmpptr(rax, rsp); | |
| 0 | 1551 __ jcc(Assembler::equal, L); |
| 1552 __ stop("broken stack frame setup in interpreter"); | |
| 1553 __ bind(L); | |
| 1554 } | |
| 1555 #endif | |
| 1556 | |
| 1557 // jvmti support | |
| 1558 __ notify_method_entry(); | |
| 1559 | |
| 1560 __ dispatch_next(vtos); | |
| 1561 | |
| 1562 // invocation counter overflow | |
| 1563 if (inc_counter) { | |
| 1564 if (ProfileInterpreter) { | |
| 1565 // We have decided to profile this method in the interpreter | |
| 1566 __ bind(profile_method); | |
|
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1567 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
|
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1568 __ set_method_data_pointer_for_bcp(); |
|
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|
1569 __ get_method(rbx); |
| 0 | 1570 __ jmp(profile_method_continue); |
| 1571 } | |
| 1572 // Handle overflow of counter and compile method | |
| 1573 __ bind(invocation_counter_overflow); | |
| 1574 generate_counter_overflow(&continue_after_compile); | |
| 1575 } | |
| 1576 | |
| 1577 return entry_point; | |
| 1578 } | |
| 1579 | |
| 1580 // Entry points | |
| 1581 // | |
| 1582 // Here we generate the various kind of entries into the interpreter. | |
| 1583 // The two main entry type are generic bytecode methods and native | |
| 1584 // call method. These both come in synchronized and non-synchronized | |
| 1585 // versions but the frame layout they create is very similar. The | |
| 1586 // other method entry types are really just special purpose entries | |
| 1587 // that are really entry and interpretation all in one. These are for | |
| 1588 // trivial methods like accessor, empty, or special math methods. | |
| 1589 // | |
| 1590 // When control flow reaches any of the entry types for the interpreter | |
| 1591 // the following holds -> | |
| 1592 // | |
| 1593 // Arguments: | |
| 1594 // | |
|
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|
1595 // rbx: Method* |
| 0 | 1596 // |
| 1597 // Stack layout immediately at entry | |
| 1598 // | |
| 1599 // [ return address ] <--- rsp | |
| 1600 // [ parameter n ] | |
| 1601 // ... | |
| 1602 // [ parameter 1 ] | |
| 1603 // [ expression stack ] (caller's java expression stack) | |
| 1604 | |
| 1605 // Assuming that we don't go to one of the trivial specialized entries | |
| 1606 // the stack will look like below when we are ready to execute the | |
| 1607 // first bytecode (or call the native routine). The register usage | |
| 1608 // will be as the template based interpreter expects (see | |
| 1609 // interpreter_amd64.hpp). | |
| 1610 // | |
| 1611 // local variables follow incoming parameters immediately; i.e. | |
| 1612 // the return address is moved to the end of the locals). | |
| 1613 // | |
| 1614 // [ monitor entry ] <--- rsp | |
| 1615 // ... | |
| 1616 // [ monitor entry ] | |
| 1617 // [ expr. stack bottom ] | |
| 1618 // [ saved r13 ] | |
| 1619 // [ current r14 ] | |
|
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|
1620 // [ Method* ] |
| 0 | 1621 // [ saved ebp ] <--- rbp |
| 1622 // [ return address ] | |
| 1623 // [ local variable m ] | |
| 1624 // ... | |
| 1625 // [ local variable 1 ] | |
| 1626 // [ parameter n ] | |
| 1627 // ... | |
| 1628 // [ parameter 1 ] <--- r14 | |
| 1629 | |
| 1630 address AbstractInterpreterGenerator::generate_method_entry( | |
| 1631 AbstractInterpreter::MethodKind kind) { | |
| 1632 // determine code generation flags | |
| 1633 bool synchronized = false; | |
| 1634 address entry_point = NULL; | |
|
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|
1635 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
| 0 | 1636 |
| 1637 switch (kind) { | |
|
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|
1638 case Interpreter::zerolocals : break; |
|
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|
1639 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
|
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|
1640 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
|
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1641 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
|
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|
1642 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
|
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1643 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
|
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|
1644 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
|
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|
1645 |
|
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6539464: Math.log() produces inconsistent results between successive runs.
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|
1646 case Interpreter::java_lang_math_sin : // fall thru |
|
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1647 case Interpreter::java_lang_math_cos : // fall thru |
|
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1648 case Interpreter::java_lang_math_tan : // fall thru |
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|
1649 case Interpreter::java_lang_math_abs : // fall thru |
|
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|
1650 case Interpreter::java_lang_math_log : // fall thru |
|
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6539464: Math.log() produces inconsistent results between successive runs.
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|
1651 case Interpreter::java_lang_math_log10 : // fall thru |
|
6084
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1652 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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|
1653 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1654 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
|
3249
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|
1655 case Interpreter::java_lang_ref_reference_get |
|
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|
1656 : entry_point = ig_this->generate_Reference_get_entry(); break; |
|
b800986664f4
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|
1657 case Interpreter::java_util_zip_CRC32_update |
|
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|
1658 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
|
b800986664f4
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|
1659 case Interpreter::java_util_zip_CRC32_updateBytes |
|
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|
1660 : // fall thru |
|
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|
1661 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
|
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|
1662 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
|
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|
1663 default: |
|
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|
1664 fatal(err_msg("unexpected method kind: %d", kind)); |
|
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|
1665 break; |
| 0 | 1666 } |
| 1667 | |
| 1668 if (entry_point) { | |
| 1669 return entry_point; | |
| 1670 } | |
| 1671 | |
|
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|
1672 return ig_this->generate_normal_entry(synchronized); |
| 0 | 1673 } |
| 1674 | |
|
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|
1675 // These should never be compiled since the interpreter will prefer |
|
ddb7834449d0
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|
1676 // the compiled version to the intrinsic version. |
|
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|
1677 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
|
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|
1678 switch (method_kind(m)) { |
|
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|
1679 case Interpreter::java_lang_math_sin : // fall thru |
|
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1680 case Interpreter::java_lang_math_cos : // fall thru |
|
ddb7834449d0
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|
1681 case Interpreter::java_lang_math_tan : // fall thru |
|
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|
1682 case Interpreter::java_lang_math_abs : // fall thru |
|
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|
1683 case Interpreter::java_lang_math_log : // fall thru |
|
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|
1684 case Interpreter::java_lang_math_log10 : // fall thru |
|
6084
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|
1685 case Interpreter::java_lang_math_sqrt : // fall thru |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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|
1686 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1687 case Interpreter::java_lang_math_exp : |
|
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|
1688 return false; |
|
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|
1689 default: |
|
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|
1690 return true; |
|
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|
1691 } |
|
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|
1692 } |
|
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|
1693 |
| 0 | 1694 // How much stack a method activation needs in words. |
|
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|
1695 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1696 const int entry_size = frame::interpreter_frame_monitor_size(); |
| 1697 | |
| 1698 // total overhead size: entry_size + (saved rbp thru expr stack | |
| 1699 // bottom). be sure to change this if you add/subtract anything | |
| 1700 // to/from the overhead area | |
| 1701 const int overhead_size = | |
| 1702 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
| 1703 | |
| 1704 const int stub_code = frame::entry_frame_after_call_words; | |
|
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|
1705 const int method_stack = (method->max_locals() + method->max_stack()) * |
| 1506 | 1706 Interpreter::stackElementWords; |
| 0 | 1707 return (overhead_size + method_stack + stub_code); |
| 1708 } | |
| 1709 | |
|
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|
1710 int AbstractInterpreter::layout_activation(Method* method, |
| 0 | 1711 int tempcount, |
| 1712 int popframe_extra_args, | |
| 1713 int moncount, | |
|
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|
1714 int caller_actual_parameters, |
| 0 | 1715 int callee_param_count, |
| 1716 int callee_locals, | |
| 1717 frame* caller, | |
| 1718 frame* interpreter_frame, | |
|
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|
1719 bool is_top_frame, |
|
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|
1720 bool is_bottom_frame) { |
| 0 | 1721 // Note: This calculation must exactly parallel the frame setup |
| 1722 // in AbstractInterpreterGenerator::generate_method_entry. | |
| 1723 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
| 1724 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
| 1725 // right size, as determined by a previous call to this method. | |
| 1726 // It is also guaranteed to be walkable even though it is in a skeletal state | |
| 1727 | |
| 1728 // fixed size of an interpreter frame: | |
| 1506 | 1729 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
| 0 | 1730 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
| 1506 | 1731 Interpreter::stackElementWords; |
| 0 | 1732 |
| 1733 int overhead = frame::sender_sp_offset - | |
| 1734 frame::interpreter_frame_initial_sp_offset; | |
| 1735 // Our locals were accounted for by the caller (or last_frame_adjust | |
| 1736 // on the transistion) Since the callee parameters already account | |
| 1737 // for the callee's params we only need to account for the extra | |
| 1738 // locals. | |
| 1739 int size = overhead + | |
| 1506 | 1740 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
| 0 | 1741 moncount * frame::interpreter_frame_monitor_size() + |
| 1506 | 1742 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
| 0 | 1743 if (interpreter_frame != NULL) { |
| 1744 #ifdef ASSERT | |
|
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2245
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|
1745 if (!EnableInvokeDynamic) |
|
1135
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1746 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
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1747 // Probably, since deoptimization doesn't work yet. |
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1748 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
| 0 | 1749 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
| 1750 #endif | |
| 1751 | |
| 1752 interpreter_frame->interpreter_frame_set_method(method); | |
| 1753 // NOTE the difference in using sender_sp and | |
| 1754 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
| 1755 // the original sp of the caller (the unextended_sp) and | |
| 1756 // sender_sp is fp+16 XXX | |
| 1757 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
| 1758 | |
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1759 #ifdef ASSERT |
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1760 if (caller->is_interpreted_frame()) { |
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1761 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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1762 } |
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1763 #endif |
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1764 |
| 0 | 1765 interpreter_frame->interpreter_frame_set_locals(locals); |
| 1766 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
| 1767 BasicObjectLock* monbot = montop - moncount; | |
| 1768 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
| 1769 | |
| 1770 // Set last_sp | |
| 1771 intptr_t* esp = (intptr_t*) monbot - | |
| 1506 | 1772 tempcount*Interpreter::stackElementWords - |
| 0 | 1773 popframe_extra_args; |
| 1774 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
| 1775 | |
| 1776 // All frames but the initial (oldest) interpreter frame we fill in have | |
| 1777 // a value for sender_sp that allows walking the stack but isn't | |
| 1778 // truly correct. Correct the value here. | |
| 1779 if (extra_locals != 0 && | |
| 1780 interpreter_frame->sender_sp() == | |
| 1781 interpreter_frame->interpreter_frame_sender_sp()) { | |
| 1782 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
| 1783 extra_locals); | |
| 1784 } | |
| 1785 *interpreter_frame->interpreter_frame_cache_addr() = | |
| 1786 method->constants()->cache(); | |
| 1787 } | |
| 1788 return size; | |
| 1789 } | |
| 1790 | |
| 1791 //----------------------------------------------------------------------------- | |
| 1792 // Exceptions | |
| 1793 | |
| 1794 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1795 // Entry point in previous activation (i.e., if the caller was | |
| 1796 // interpreted) | |
| 1797 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1798 // Restore sp to interpreter_frame_last_sp even though we are going | |
| 1799 // to empty the expression stack for the exception processing. | |
| 304 | 1800 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 1801 // rax: exception |
| 1802 // rdx: return address/pc that threw exception | |
| 1803 __ restore_bcp(); // r13 points to call/send | |
| 1804 __ restore_locals(); | |
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1805 __ reinit_heapbase(); // restore r12 as heapbase. |
| 0 | 1806 // Entry point for exceptions thrown within interpreter code |
| 1807 Interpreter::_throw_exception_entry = __ pc(); | |
| 1808 // expression stack is undefined here | |
| 1809 // rax: exception | |
| 1810 // r13: exception bcp | |
| 1811 __ verify_oop(rax); | |
| 304 | 1812 __ mov(c_rarg1, rax); |
| 0 | 1813 |
| 1814 // expression stack must be empty before entering the VM in case of | |
| 1815 // an exception | |
| 1816 __ empty_expression_stack(); | |
| 1817 // find exception handler address and preserve exception oop | |
| 1818 __ call_VM(rdx, | |
| 1819 CAST_FROM_FN_PTR(address, | |
| 1820 InterpreterRuntime::exception_handler_for_exception), | |
| 1821 c_rarg1); | |
| 1822 // rax: exception handler entry point | |
| 1823 // rdx: preserved exception oop | |
| 1824 // r13: bcp for exception handler | |
| 1825 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
| 1826 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
| 1827 | |
| 1828 // If the exception is not handled in the current frame the frame is | |
| 1829 // removed and the exception is rethrown (i.e. exception | |
| 1830 // continuation is _rethrow_exception). | |
| 1831 // | |
| 1832 // Note: At this point the bci is still the bxi for the instruction | |
| 1833 // which caused the exception and the expression stack is | |
| 1834 // empty. Thus, for any VM calls at this point, GC will find a legal | |
| 1835 // oop map (with empty expression stack). | |
| 1836 | |
| 1837 // In current activation | |
| 1838 // tos: exception | |
| 1839 // esi: exception bcp | |
| 1840 | |
| 1841 // | |
| 1842 // JVMTI PopFrame support | |
| 1843 // | |
| 1844 | |
| 1845 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 1846 __ empty_expression_stack(); | |
| 1847 // Set the popframe_processing bit in pending_popframe_condition | |
| 1848 // indicating that we are currently handling popframe, so that | |
| 1849 // call_VMs that may happen later do not trigger new popframe | |
| 1850 // handling cycles. | |
| 1851 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
| 1852 __ orl(rdx, JavaThread::popframe_processing_bit); | |
| 1853 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
| 1854 | |
| 1855 { | |
| 1856 // Check to see whether we are returning to a deoptimized frame. | |
| 1857 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1858 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1859 // In this case, we can't call dispatch_next() after the frame is | |
| 1860 // popped, but instead must save the incoming arguments and restore | |
| 1861 // them after deoptimization has occurred. | |
| 1862 // | |
| 1863 // Note that we don't compare the return PC against the | |
| 1864 // deoptimization blob's unpack entry because of the presence of | |
| 1865 // adapter frames in C2. | |
| 1866 Label caller_not_deoptimized; | |
| 304 | 1867 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
| 0 | 1868 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1869 InterpreterRuntime::interpreter_contains), c_rarg1); | |
| 1870 __ testl(rax, rax); | |
| 1871 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
| 1872 | |
| 1873 // Compute size of arguments for saving when returning to | |
| 1874 // deoptimized caller | |
| 1875 __ get_method(rax); | |
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1876 __ movptr(rax, Address(rax, Method::const_offset())); |
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1877 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
| 0 | 1878 size_of_parameters_offset()))); |
| 1506 | 1879 __ shll(rax, Interpreter::logStackElementSize); |
| 0 | 1880 __ restore_locals(); // XXX do we need this? |
| 304 | 1881 __ subptr(r14, rax); |
| 1882 __ addptr(r14, wordSize); | |
| 0 | 1883 // Save these arguments |
| 1884 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
| 1885 Deoptimization:: | |
| 1886 popframe_preserve_args), | |
| 1887 r15_thread, rax, r14); | |
| 1888 | |
| 1889 __ remove_activation(vtos, rdx, | |
| 1890 /* throw_monitor_exception */ false, | |
| 1891 /* install_monitor_exception */ false, | |
| 1892 /* notify_jvmdi */ false); | |
| 1893 | |
| 1894 // Inform deoptimization that it is responsible for restoring | |
| 1895 // these arguments | |
| 1896 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1897 JavaThread::popframe_force_deopt_reexecution_bit); | |
| 1898 | |
| 1899 // Continue in deoptimization handler | |
| 1900 __ jmp(rdx); | |
| 1901 | |
| 1902 __ bind(caller_not_deoptimized); | |
| 1903 } | |
| 1904 | |
| 1905 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
| 1906 /* throw_monitor_exception */ false, | |
| 1907 /* install_monitor_exception */ false, | |
| 1908 /* notify_jvmdi */ false); | |
| 1909 | |
| 1910 // Finish with popframe handling | |
| 1911 // A previous I2C followed by a deoptimization might have moved the | |
| 1912 // outgoing arguments further up the stack. PopFrame expects the | |
| 1913 // mutations to those outgoing arguments to be preserved and other | |
| 1914 // constraints basically require this frame to look exactly as | |
| 1915 // though it had previously invoked an interpreted activation with | |
| 1916 // no space between the top of the expression stack (current | |
| 1917 // last_sp) and the top of stack. Rather than force deopt to | |
| 1918 // maintain this kind of invariant all the time we call a small | |
| 1919 // fixup routine to move the mutated arguments onto the top of our | |
| 1920 // expression stack if necessary. | |
| 304 | 1921 __ mov(c_rarg1, rsp); |
| 1922 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
| 0 | 1923 // PC must point into interpreter here |
| 1924 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
| 1925 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
| 1926 __ reset_last_Java_frame(true, true); | |
| 1927 // Restore the last_sp and null it out | |
| 304 | 1928 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 1929 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
| 0 | 1930 |
| 1931 __ restore_bcp(); // XXX do we need this? | |
| 1932 __ restore_locals(); // XXX do we need this? | |
| 1933 // The method data pointer was incremented already during | |
| 1934 // call profiling. We have to restore the mdp for the current bcp. | |
| 1935 if (ProfileInterpreter) { | |
| 1936 __ set_method_data_pointer_for_bcp(); | |
| 1937 } | |
| 1938 | |
| 1939 // Clear the popframe condition flag | |
| 1940 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1941 JavaThread::popframe_inactive); | |
| 1942 | |
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1943 #if INCLUDE_JVMTI |
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1944 if (EnableInvokeDynamic) { |
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1945 Label L_done; |
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1946 const Register local0 = r14; |
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1947 |
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1948 __ cmpb(Address(r13, 0), Bytecodes::_invokestatic); |
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1949 __ jcc(Assembler::notEqual, L_done); |
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1950 |
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1951 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1952 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1953 |
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1954 __ get_method(rdx); |
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1955 __ movptr(rax, Address(local0, 0)); |
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1956 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, r13); |
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1957 |
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1958 __ testptr(rax, rax); |
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1959 __ jcc(Assembler::zero, L_done); |
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1960 |
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1961 __ movptr(Address(rbx, 0), rax); |
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1962 __ bind(L_done); |
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1963 } |
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1964 #endif // INCLUDE_JVMTI |
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1965 |
| 0 | 1966 __ dispatch_next(vtos); |
| 1967 // end of PopFrame support | |
| 1968 | |
| 1969 Interpreter::_remove_activation_entry = __ pc(); | |
| 1970 | |
| 1971 // preserve exception over this code sequence | |
| 1972 __ pop_ptr(rax); | |
| 304 | 1973 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
| 0 | 1974 // remove the activation (without doing throws on illegalMonitorExceptions) |
| 1975 __ remove_activation(vtos, rdx, false, true, false); | |
| 1976 // restore exception | |
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1977 __ get_vm_result(rax, r15_thread); |
| 0 | 1978 |
| 1979 // In between activations - previous activation type unknown yet | |
| 1980 // compute continuation point - the continuation point expects the | |
| 1981 // following registers set up: | |
| 1982 // | |
| 1983 // rax: exception | |
| 1984 // rdx: return address/pc that threw exception | |
| 1985 // rsp: expression stack of caller | |
| 1986 // rbp: ebp of caller | |
| 304 | 1987 __ push(rax); // save exception |
| 1988 __ push(rdx); // save return address | |
| 0 | 1989 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1990 SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 1991 r15_thread, rdx); |
| 304 | 1992 __ mov(rbx, rax); // save exception handler |
| 1993 __ pop(rdx); // restore return address | |
| 1994 __ pop(rax); // restore exception | |
| 0 | 1995 // Note that an "issuing PC" is actually the next PC after the call |
| 1996 __ jmp(rbx); // jump to exception | |
| 1997 // handler of caller | |
| 1998 } | |
| 1999 | |
| 2000 | |
| 2001 // | |
| 2002 // JVMTI ForceEarlyReturn support | |
| 2003 // | |
| 2004 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 2005 address entry = __ pc(); | |
| 2006 | |
| 2007 __ restore_bcp(); | |
| 2008 __ restore_locals(); | |
| 2009 __ empty_expression_stack(); | |
| 2010 __ load_earlyret_value(state); | |
| 2011 | |
| 304 | 2012 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 2013 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
| 2014 | |
| 2015 // Clear the earlyret state | |
| 2016 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
| 2017 | |
| 2018 __ remove_activation(state, rsi, | |
| 2019 false, /* throw_monitor_exception */ | |
| 2020 false, /* install_monitor_exception */ | |
| 2021 true); /* notify_jvmdi */ | |
| 2022 __ jmp(rsi); | |
| 2023 | |
| 2024 return entry; | |
| 2025 } // end of ForceEarlyReturn support | |
| 2026 | |
| 2027 | |
| 2028 //----------------------------------------------------------------------------- | |
| 2029 // Helper for vtos entry point generation | |
| 2030 | |
| 2031 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
| 2032 address& bep, | |
| 2033 address& cep, | |
| 2034 address& sep, | |
| 2035 address& aep, | |
| 2036 address& iep, | |
| 2037 address& lep, | |
| 2038 address& fep, | |
| 2039 address& dep, | |
| 2040 address& vep) { | |
| 2041 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 2042 Label L; | |
| 2043 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
| 2044 fep = __ pc(); __ push_f(); __ jmp(L); | |
| 2045 dep = __ pc(); __ push_d(); __ jmp(L); | |
| 2046 lep = __ pc(); __ push_l(); __ jmp(L); | |
| 2047 bep = cep = sep = | |
| 2048 iep = __ pc(); __ push_i(); | |
| 2049 vep = __ pc(); | |
| 2050 __ bind(L); | |
| 2051 generate_and_dispatch(t); | |
| 2052 } | |
| 2053 | |
| 2054 | |
| 2055 //----------------------------------------------------------------------------- | |
| 2056 // Generation of individual instructions | |
| 2057 | |
| 2058 // helpers for generate_and_dispatch | |
| 2059 | |
| 2060 | |
| 2061 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 2062 : TemplateInterpreterGenerator(code) { | |
| 2063 generate_all(); // down here so it can be "virtual" | |
| 2064 } | |
| 2065 | |
| 2066 //----------------------------------------------------------------------------- | |
| 2067 | |
| 2068 // Non-product code | |
| 2069 #ifndef PRODUCT | |
| 2070 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 2071 address entry = __ pc(); | |
| 2072 | |
| 2073 __ push(state); | |
| 304 | 2074 __ push(c_rarg0); |
| 2075 __ push(c_rarg1); | |
| 2076 __ push(c_rarg2); | |
| 2077 __ push(c_rarg3); | |
| 2078 __ mov(c_rarg2, rax); // Pass itos | |
| 0 | 2079 #ifdef _WIN64 |
| 2080 __ movflt(xmm3, xmm0); // Pass ftos | |
| 2081 #endif | |
| 2082 __ call_VM(noreg, | |
| 2083 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
| 2084 c_rarg1, c_rarg2, c_rarg3); | |
| 304 | 2085 __ pop(c_rarg3); |
| 2086 __ pop(c_rarg2); | |
| 2087 __ pop(c_rarg1); | |
| 2088 __ pop(c_rarg0); | |
| 0 | 2089 __ pop(state); |
| 2090 __ ret(0); // return from result handler | |
| 2091 | |
| 2092 return entry; | |
| 2093 } | |
| 2094 | |
| 2095 void TemplateInterpreterGenerator::count_bytecode() { | |
| 2096 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
| 2097 } | |
| 2098 | |
| 2099 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 2100 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
| 2101 } | |
| 2102 | |
| 2103 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 2104 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
| 2105 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
| 2106 __ orl(rbx, | |
| 2107 ((int) t->bytecode()) << | |
| 2108 BytecodePairHistogram::log2_number_of_codes); | |
| 2109 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
| 2110 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
| 2111 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
| 2112 } | |
| 2113 | |
| 2114 | |
| 2115 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2116 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2117 // The run-time runtime saves the right registers, depending on | |
| 2118 // the tosca in-state for the given template. | |
| 2119 | |
| 2120 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
| 2121 "entry must have been generated"); | |
|
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0fc262af204f
6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops
coleenp
parents:
1972
diff
changeset
|
2122 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 2123 __ andptr(rsp, -16); // align stack as required by ABI |
| 0 | 2124 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
| 304 | 2125 __ mov(rsp, r12); // restore sp |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2126 __ reinit_heapbase(); |
| 0 | 2127 } |
| 2128 | |
| 2129 | |
| 2130 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 2131 Label L; | |
| 2132 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
| 2133 StopInterpreterAt); | |
| 2134 __ jcc(Assembler::notEqual, L); | |
| 2135 __ int3(); | |
| 2136 __ bind(L); | |
| 2137 } | |
| 2138 #endif // !PRODUCT | |
| 304 | 2139 #endif // ! CC_INTERP |