Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 9025:ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Fri, 12 Apr 2013 01:53:52 +0200 |
| parents | b9a918201d47 |
| children | c6a1ffc707ff |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
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39 #include "runtime/compilationPolicy.hpp" |
| 1972 | 40 #include "runtime/deoptimization.hpp" |
| 41 #include "runtime/frame.inline.hpp" | |
| 42 #include "runtime/sharedRuntime.hpp" | |
| 43 #include "runtime/stubRoutines.hpp" | |
| 44 #include "runtime/synchronizer.hpp" | |
| 45 #include "runtime/timer.hpp" | |
| 46 #include "runtime/vframeArray.hpp" | |
| 47 #include "utilities/debug.hpp" | |
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48 #include "utilities/macros.hpp" |
| 0 | 49 |
| 50 #define __ _masm-> | |
| 51 | |
| 304 | 52 #ifndef CC_INTERP |
| 53 | |
| 0 | 54 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
| 55 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
| 56 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
| 57 | |
| 58 //----------------------------------------------------------------------------- | |
| 59 | |
| 60 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 61 address entry = __ pc(); | |
| 62 | |
| 63 #ifdef ASSERT | |
| 64 { | |
| 65 Label L; | |
| 304 | 66 __ lea(rax, Address(rbp, |
| 67 frame::interpreter_frame_monitor_block_top_offset * | |
| 68 wordSize)); | |
| 69 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
| 70 // grows negative) | |
| 0 | 71 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
| 72 __ stop ("interpreter frame not set up"); | |
| 73 __ bind(L); | |
| 74 } | |
| 75 #endif // ASSERT | |
| 76 // Restore bcp under the assumption that the current frame is still | |
| 77 // interpreted | |
| 78 __ restore_bcp(); | |
| 79 | |
| 80 // expression stack must be empty before entering the VM if an | |
| 81 // exception happened | |
| 82 __ empty_expression_stack(); | |
| 83 // throw exception | |
| 84 __ call_VM(noreg, | |
| 85 CAST_FROM_FN_PTR(address, | |
| 86 InterpreterRuntime::throw_StackOverflowError)); | |
| 87 return entry; | |
| 88 } | |
| 89 | |
| 90 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
| 91 const char* name) { | |
| 92 address entry = __ pc(); | |
| 93 // expression stack must be empty before entering the VM if an | |
| 94 // exception happened | |
| 95 __ empty_expression_stack(); | |
| 96 // setup parameters | |
| 97 // ??? convention: expect aberrant index in register ebx | |
| 98 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 99 __ call_VM(noreg, | |
| 100 CAST_FROM_FN_PTR(address, | |
| 101 InterpreterRuntime:: | |
| 102 throw_ArrayIndexOutOfBoundsException), | |
| 103 c_rarg1, rbx); | |
| 104 return entry; | |
| 105 } | |
| 106 | |
| 107 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 108 address entry = __ pc(); | |
| 109 | |
| 110 // object is at TOS | |
| 304 | 111 __ pop(c_rarg1); |
| 0 | 112 |
| 113 // expression stack must be empty before entering the VM if an | |
| 114 // exception happened | |
| 115 __ empty_expression_stack(); | |
| 116 | |
| 117 __ call_VM(noreg, | |
| 118 CAST_FROM_FN_PTR(address, | |
| 119 InterpreterRuntime:: | |
| 120 throw_ClassCastException), | |
| 121 c_rarg1); | |
| 122 return entry; | |
| 123 } | |
| 124 | |
| 125 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
| 126 const char* name, const char* message, bool pass_oop) { | |
| 127 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 128 address entry = __ pc(); | |
| 129 if (pass_oop) { | |
| 130 // object is at TOS | |
| 304 | 131 __ pop(c_rarg2); |
| 0 | 132 } |
| 133 // expression stack must be empty before entering the VM if an | |
| 134 // exception happened | |
| 135 __ empty_expression_stack(); | |
| 136 // setup parameters | |
| 137 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 138 if (pass_oop) { | |
| 139 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
| 140 InterpreterRuntime:: | |
| 141 create_klass_exception), | |
| 142 c_rarg1, c_rarg2); | |
| 143 } else { | |
| 144 // kind of lame ExternalAddress can't take NULL because | |
| 145 // external_word_Relocation will assert. | |
| 146 if (message != NULL) { | |
| 147 __ lea(c_rarg2, ExternalAddress((address)message)); | |
| 148 } else { | |
| 149 __ movptr(c_rarg2, NULL_WORD); | |
| 150 } | |
| 151 __ call_VM(rax, | |
| 152 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
| 153 c_rarg1, c_rarg2); | |
| 154 } | |
| 155 // throw exception | |
| 156 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 157 return entry; | |
| 158 } | |
| 159 | |
| 160 | |
| 161 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 162 address entry = __ pc(); | |
| 163 // NULL last_sp until next java call | |
| 304 | 164 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 165 __ dispatch_next(state); |
| 166 return entry; | |
| 167 } | |
| 168 | |
| 169 | |
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170 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
| 0 | 171 address entry = __ pc(); |
| 172 | |
| 173 // Restore stack bottom in case i2c adjusted stack | |
| 304 | 174 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 0 | 175 // and NULL it as marker that esp is now tos until next java call |
| 304 | 176 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 177 |
| 178 __ restore_bcp(); | |
| 179 __ restore_locals(); | |
| 304 | 180 |
| 1108 | 181 Label L_got_cache, L_giant_index; |
| 182 if (EnableInvokeDynamic) { | |
| 183 __ cmpb(Address(r13, 0), Bytecodes::_invokedynamic); | |
| 184 __ jcc(Assembler::equal, L_giant_index); | |
| 185 } | |
| 1565 | 186 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
| 1108 | 187 __ bind(L_got_cache); |
| 0 | 188 __ movl(rbx, Address(rbx, rcx, |
| 1108 | 189 Address::times_ptr, |
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190 in_bytes(ConstantPoolCache::base_offset()) + |
| 0 | 191 3 * wordSize)); |
| 192 __ andl(rbx, 0xFF); | |
| 304 | 193 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 194 __ dispatch_next(state, step); |
| 1108 | 195 |
| 196 // out of the main line of code... | |
| 197 if (EnableInvokeDynamic) { | |
| 198 __ bind(L_giant_index); | |
| 1565 | 199 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
| 1108 | 200 __ jmp(L_got_cache); |
| 201 } | |
| 202 | |
| 0 | 203 return entry; |
| 204 } | |
| 205 | |
| 206 | |
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207 address InterpreterGenerator::generate_deopt_entry_for(TosState state, |
| 0 | 208 int step) { |
| 209 address entry = __ pc(); | |
| 210 // NULL last_sp until next java call | |
| 304 | 211 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 212 __ restore_bcp(); |
| 213 __ restore_locals(); | |
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214 // Check if we need to take lock at entry of synchronized method. |
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215 { |
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216 Label L; |
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217 __ cmpb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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218 __ jcc(Assembler::zero, L); |
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219 // Clear flag. |
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220 __ movb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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221 // Satisfy calling convention for lock_method(). |
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222 __ get_method(rbx); |
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223 // Take lock. |
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224 lock_method(); |
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225 __ bind(L); |
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226 } |
| 0 | 227 // handle exceptions |
| 228 { | |
| 229 Label L; | |
| 304 | 230 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 231 __ jcc(Assembler::zero, L); |
| 232 __ call_VM(noreg, | |
| 233 CAST_FROM_FN_PTR(address, | |
| 234 InterpreterRuntime::throw_pending_exception)); | |
| 235 __ should_not_reach_here(); | |
| 236 __ bind(L); | |
| 237 } | |
| 238 __ dispatch_next(state, step); | |
| 239 return entry; | |
| 240 } | |
| 241 | |
| 242 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 243 int i = 0; | |
| 244 switch (type) { | |
| 245 case T_BOOLEAN: i = 0; break; | |
| 246 case T_CHAR : i = 1; break; | |
| 247 case T_BYTE : i = 2; break; | |
| 248 case T_SHORT : i = 3; break; | |
| 249 case T_INT : i = 4; break; | |
| 250 case T_LONG : i = 5; break; | |
| 251 case T_VOID : i = 6; break; | |
| 252 case T_FLOAT : i = 7; break; | |
| 253 case T_DOUBLE : i = 8; break; | |
| 254 case T_OBJECT : i = 9; break; | |
| 255 case T_ARRAY : i = 9; break; | |
| 256 default : ShouldNotReachHere(); | |
| 257 } | |
| 258 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
| 259 "index out of bounds"); | |
| 260 return i; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 address TemplateInterpreterGenerator::generate_result_handler_for( | |
| 265 BasicType type) { | |
| 266 address entry = __ pc(); | |
| 267 switch (type) { | |
| 268 case T_BOOLEAN: __ c2bool(rax); break; | |
| 269 case T_CHAR : __ movzwl(rax, rax); break; | |
| 270 case T_BYTE : __ sign_extend_byte(rax); break; | |
| 271 case T_SHORT : __ sign_extend_short(rax); break; | |
| 272 case T_INT : /* nothing to do */ break; | |
| 273 case T_LONG : /* nothing to do */ break; | |
| 274 case T_VOID : /* nothing to do */ break; | |
| 275 case T_FLOAT : /* nothing to do */ break; | |
| 276 case T_DOUBLE : /* nothing to do */ break; | |
| 277 case T_OBJECT : | |
| 278 // retrieve result from frame | |
| 304 | 279 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
| 0 | 280 // and verify it |
| 281 __ verify_oop(rax); | |
| 282 break; | |
| 283 default : ShouldNotReachHere(); | |
| 284 } | |
| 285 __ ret(0); // return from result handler | |
| 286 return entry; | |
| 287 } | |
| 288 | |
| 289 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
| 290 TosState state, | |
| 291 address runtime_entry) { | |
| 292 address entry = __ pc(); | |
| 293 __ push(state); | |
| 294 __ call_VM(noreg, runtime_entry); | |
| 295 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
| 296 return entry; | |
| 297 } | |
| 298 | |
| 299 | |
| 300 | |
| 301 // Helpers for commoning out cases in the various type of method entries. | |
| 302 // | |
| 303 | |
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304 #ifdef GRAAL |
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305 |
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306 void graal_initialize_time(JavaThread* thread) { |
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307 frame fr = thread->last_frame(); |
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308 assert(fr.is_interpreted_frame(), "must come from interpreter"); |
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309 fr.interpreter_frame_method()->set_graal_invocation_time(os::javaTimeNanos()); |
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310 } |
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311 |
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312 #endif // GRAAL |
| 0 | 313 |
| 314 // increment invocation count & check for overflow | |
| 315 // | |
| 316 // Note: checking for negative value instead of overflow | |
| 317 // so we have a 'sticky' overflow test | |
| 318 // | |
| 319 // rbx: method | |
| 320 // ecx: invocation counter | |
| 321 // | |
| 322 void InterpreterGenerator::generate_counter_incr( | |
| 323 Label* overflow, | |
| 324 Label* profile_method, | |
| 325 Label* profile_method_continue) { | |
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326 const Address invocation_counter(rbx, in_bytes(Method::invocation_counter_offset()) + |
| 1783 | 327 in_bytes(InvocationCounter::counter_offset())); |
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328 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
| 1783 | 329 if (TieredCompilation) { |
| 330 int increment = InvocationCounter::count_increment; | |
| 331 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 332 Label no_mdo, done; | |
| 333 if (ProfileInterpreter) { | |
| 334 // Are we profiling? | |
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335 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
| 1783 | 336 __ testptr(rax, rax); |
| 337 __ jccb(Assembler::zero, no_mdo); | |
| 338 // Increment counter in the MDO | |
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339 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 340 in_bytes(InvocationCounter::counter_offset())); |
| 341 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
| 342 __ jmpb(done); | |
| 343 } | |
| 344 __ bind(no_mdo); | |
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345 // Increment counter in Method* (we don't need to load it, it's in ecx). |
| 1783 | 346 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, true, Assembler::zero, overflow); |
| 347 __ bind(done); | |
| 348 } else { | |
| 349 const Address backedge_counter(rbx, | |
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350 Method::backedge_counter_offset() + |
| 0 | 351 InvocationCounter::counter_offset()); |
| 352 | |
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353 if (ProfileInterpreter) { // %%% Merge this into MethodData* |
| 1783 | 354 __ incrementl(Address(rbx, |
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355 Method::interpreter_invocation_counter_offset())); |
| 1783 | 356 } |
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357 |
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358 #ifdef GRAAL |
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359 if (CompilationPolicyChoice == 4) { |
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360 Label not_zero; |
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361 __ testl(rcx, InvocationCounter::count_mask_value); |
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362 __ jcc(Assembler::notZero, not_zero); |
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363 |
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364 __ push(rcx); |
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365 __ call_VM(noreg, CAST_FROM_FN_PTR(address, graal_initialize_time), rdx, false); |
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366 __ set_method_data_pointer_for_bcp(); |
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367 __ get_method(rbx); |
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368 __ pop(rcx); |
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369 |
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370 __ testl(rcx, InvocationCounter::count_mask_value); |
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371 __ jcc(Assembler::zero, not_zero); |
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372 __ stop("unexpected counter value in rcx"); |
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373 |
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374 __ bind(not_zero); |
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375 } |
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376 #endif // GRAAL |
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377 |
| 1783 | 378 // Update standard invocation counters |
| 379 __ movl(rax, backedge_counter); // load backedge counter | |
| 0 | 380 |
| 1783 | 381 __ incrementl(rcx, InvocationCounter::count_increment); |
| 382 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits | |
| 0 | 383 |
| 1783 | 384 __ movl(invocation_counter, rcx); // save invocation count |
| 385 __ addl(rcx, rax); // add both counters | |
| 0 | 386 |
| 1783 | 387 // profile_method is non-null only for interpreted method so |
| 388 // profile_method != NULL == !native_call | |
| 389 | |
| 390 if (ProfileInterpreter && profile_method != NULL) { | |
| 391 // Test to see if we should create a method data oop | |
| 392 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
| 393 __ jcc(Assembler::less, *profile_method_continue); | |
| 0 | 394 |
| 1783 | 395 // if no method data exists, go to profile_method |
| 396 __ test_method_data_pointer(rax, *profile_method); | |
| 397 } | |
| 398 | |
| 399 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
| 400 __ jcc(Assembler::aboveEqual, *overflow); | |
| 0 | 401 } |
| 402 } | |
| 403 | |
| 404 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
| 405 | |
| 406 // Asm interpreter on entry | |
| 407 // r14 - locals | |
| 408 // r13 - bcp | |
| 409 // rbx - method | |
| 410 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
| 411 // rbp - interpreter frame | |
| 412 | |
| 413 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
| 414 // Everything as it was on entry | |
| 415 // rdx is not restored. Doesn't appear to really be set. | |
| 416 | |
| 417 // InterpreterRuntime::frequency_counter_overflow takes two | |
| 418 // arguments, the first (thread) is passed by call_VM, the second | |
| 419 // indicates if the counter overflow occurs at a backwards branch | |
| 420 // (NULL bcp). We pass zero for it. The call returns the address | |
| 421 // of the verified entry point for the method or NULL if the | |
| 422 // compilation did not complete (either went background or bailed | |
| 423 // out). | |
| 424 __ movl(c_rarg1, 0); | |
| 425 __ call_VM(noreg, | |
| 426 CAST_FROM_FN_PTR(address, | |
| 427 InterpreterRuntime::frequency_counter_overflow), | |
| 428 c_rarg1); | |
| 429 | |
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430 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
| 0 | 431 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
| 432 // and jump to the interpreted entry. | |
| 433 __ jmp(*do_continue, relocInfo::none); | |
| 434 } | |
| 435 | |
| 436 // See if we've got enough room on the stack for locals plus overhead. | |
| 437 // The expression stack grows down incrementally, so the normal guard | |
| 438 // page mechanism will work for that. | |
| 439 // | |
| 440 // NOTE: Since the additional locals are also always pushed (wasn't | |
| 441 // obvious in generate_method_entry) so the guard should work for them | |
| 442 // too. | |
| 443 // | |
| 444 // Args: | |
| 445 // rdx: number of additional locals this frame needs (what we must check) | |
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446 // rbx: Method* |
| 0 | 447 // |
| 448 // Kills: | |
| 449 // rax | |
| 450 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
| 451 | |
| 452 // monitor entry size: see picture of stack set | |
| 453 // (generate_method_entry) and frame_amd64.hpp | |
| 454 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 455 | |
| 456 // total overhead size: entry_size + (saved rbp through expr stack | |
| 457 // bottom). be sure to change this if you add/subtract anything | |
| 458 // to/from the overhead area | |
| 459 const int overhead_size = | |
| 460 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
| 461 | |
| 462 const int page_size = os::vm_page_size(); | |
| 463 | |
| 464 Label after_frame_check; | |
| 465 | |
| 466 // see if the frame is greater than one page in size. If so, | |
| 467 // then we need to verify there is enough stack space remaining | |
| 468 // for the additional locals. | |
| 1506 | 469 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
| 0 | 470 __ jcc(Assembler::belowEqual, after_frame_check); |
| 471 | |
| 472 // compute rsp as if this were going to be the last frame on | |
| 473 // the stack before the red zone | |
| 474 | |
| 475 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
| 476 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
| 477 | |
| 478 // locals + overhead, in bytes | |
| 304 | 479 __ mov(rax, rdx); |
| 1506 | 480 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
| 304 | 481 __ addptr(rax, overhead_size); |
| 0 | 482 |
| 483 #ifdef ASSERT | |
| 484 Label stack_base_okay, stack_size_okay; | |
| 485 // verify that thread stack base is non-zero | |
| 304 | 486 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
| 0 | 487 __ jcc(Assembler::notEqual, stack_base_okay); |
| 488 __ stop("stack base is zero"); | |
| 489 __ bind(stack_base_okay); | |
| 490 // verify that thread stack size is non-zero | |
| 304 | 491 __ cmpptr(stack_size, 0); |
| 0 | 492 __ jcc(Assembler::notEqual, stack_size_okay); |
| 493 __ stop("stack size is zero"); | |
| 494 __ bind(stack_size_okay); | |
| 495 #endif | |
| 496 | |
| 497 // Add stack base to locals and subtract stack size | |
| 304 | 498 __ addptr(rax, stack_base); |
| 499 __ subptr(rax, stack_size); | |
| 0 | 500 |
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501 // Use the maximum number of pages we might bang. |
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502 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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503 (StackRedPages+StackYellowPages); |
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504 |
| 0 | 505 // add in the red and yellow zone sizes |
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506 __ addptr(rax, max_pages * page_size); |
| 0 | 507 |
| 508 // check against the current stack bottom | |
| 304 | 509 __ cmpptr(rsp, rax); |
| 0 | 510 __ jcc(Assembler::above, after_frame_check); |
| 511 | |
| 4743 | 512 // Restore sender's sp as SP. This is necessary if the sender's |
| 513 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
| 514 // and safer anyway in case of JSR292 adaptations. | |
| 515 | |
| 516 __ pop(rax); // return address must be moved if SP is changed | |
| 517 __ mov(rsp, r13); | |
| 518 __ push(rax); | |
| 519 | |
| 520 // Note: the restored frame is not necessarily interpreted. | |
| 521 // Use the shared runtime version of the StackOverflowError. | |
| 522 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 523 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
| 0 | 524 |
| 525 // all done with frame size check | |
| 526 __ bind(after_frame_check); | |
| 527 } | |
| 528 | |
| 529 // Allocate monitor and lock method (asm interpreter) | |
| 530 // | |
| 531 // Args: | |
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532 // rbx: Method* |
| 0 | 533 // r14: locals |
| 534 // | |
| 535 // Kills: | |
| 536 // rax | |
| 537 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
| 538 // rscratch1, rscratch2 (scratch regs) | |
| 539 void InterpreterGenerator::lock_method(void) { | |
| 540 // synchronize method | |
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541 const Address access_flags(rbx, Method::access_flags_offset()); |
| 0 | 542 const Address monitor_block_top( |
| 543 rbp, | |
| 544 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 545 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 546 | |
| 547 #ifdef ASSERT | |
| 548 { | |
| 549 Label L; | |
| 550 __ movl(rax, access_flags); | |
| 551 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 552 __ jcc(Assembler::notZero, L); | |
| 553 __ stop("method doesn't need synchronization"); | |
| 554 __ bind(L); | |
| 555 } | |
| 556 #endif // ASSERT | |
| 557 | |
| 558 // get synchronization object | |
| 559 { | |
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560 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 561 Label done; |
| 562 __ movl(rax, access_flags); | |
| 563 __ testl(rax, JVM_ACC_STATIC); | |
| 564 // get receiver (assume this is frequent case) | |
| 304 | 565 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
| 0 | 566 __ jcc(Assembler::zero, done); |
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567 __ movptr(rax, Address(rbx, Method::const_offset())); |
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568 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
| 304 | 569 __ movptr(rax, Address(rax, |
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570 ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 571 __ movptr(rax, Address(rax, mirror_offset)); |
| 0 | 572 |
| 573 #ifdef ASSERT | |
| 574 { | |
| 575 Label L; | |
| 304 | 576 __ testptr(rax, rax); |
| 0 | 577 __ jcc(Assembler::notZero, L); |
| 578 __ stop("synchronization object is NULL"); | |
| 579 __ bind(L); | |
| 580 } | |
| 581 #endif // ASSERT | |
| 582 | |
| 583 __ bind(done); | |
| 584 } | |
| 585 | |
| 586 // add space for monitor & lock | |
| 304 | 587 __ subptr(rsp, entry_size); // add space for a monitor entry |
| 588 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
| 0 | 589 // store object |
| 304 | 590 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 591 __ movptr(c_rarg1, rsp); // object address | |
| 0 | 592 __ lock_object(c_rarg1); |
| 593 } | |
| 594 | |
| 595 // Generate a fixed interpreter frame. This is identical setup for | |
| 596 // interpreted methods and for native methods hence the shared code. | |
| 597 // | |
| 598 // Args: | |
| 599 // rax: return address | |
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600 // rbx: Method* |
| 0 | 601 // r14: pointer to locals |
| 602 // r13: sender sp | |
| 603 // rdx: cp cache | |
| 604 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 605 // initialize fixed part of activation frame | |
| 304 | 606 __ push(rax); // save return address |
| 0 | 607 __ enter(); // save old & set new rbp |
| 304 | 608 __ push(r13); // set sender sp |
| 609 __ push((int)NULL_WORD); // leave last_sp as null | |
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610 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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611 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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612 __ push(rbx); // save Method* |
| 0 | 613 if (ProfileInterpreter) { |
| 614 Label method_data_continue; | |
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615 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 616 __ testptr(rdx, rdx); |
| 0 | 617 __ jcc(Assembler::zero, method_data_continue); |
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618 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
| 0 | 619 __ bind(method_data_continue); |
| 304 | 620 __ push(rdx); // set the mdp (method data pointer) |
| 0 | 621 } else { |
| 304 | 622 __ push(0); |
| 0 | 623 } |
| 624 | |
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625 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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626 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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627 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
| 304 | 628 __ push(rdx); // set constant pool cache |
| 629 __ push(r14); // set locals pointer | |
| 0 | 630 if (native_call) { |
| 304 | 631 __ push(0); // no bcp |
| 0 | 632 } else { |
| 304 | 633 __ push(r13); // set bcp |
| 0 | 634 } |
| 304 | 635 __ push(0); // reserve word for pointer to expression stack bottom |
| 636 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
| 0 | 637 } |
| 638 | |
| 639 // End of helpers | |
| 640 | |
| 304 | 641 // Various method entries |
| 642 //------------------------------------------------------------------------------------------------------------------------ | |
| 643 // | |
| 644 // | |
| 645 | |
| 646 // Call an accessor method (assuming it is resolved, otherwise drop | |
| 647 // into vanilla (slow path) entry | |
| 648 address InterpreterGenerator::generate_accessor_entry(void) { | |
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649 // rbx: Method* |
| 304 | 650 |
| 651 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
| 652 | |
| 653 address entry_point = __ pc(); | |
| 654 Label xreturn_path; | |
| 655 | |
| 656 // do fastpath for resolved accessor methods | |
| 657 if (UseFastAccessorMethods) { | |
| 658 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
| 659 // thereof; parameter size = 1 | |
| 660 // Note: We can only use this code if the getfield has been resolved | |
| 661 // and if we don't have a null-pointer exception => check for | |
| 662 // these conditions first and use slow path if necessary. | |
| 663 Label slow_path; | |
| 664 // If we need a safepoint check, generate full interpreter entry. | |
| 665 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 666 SafepointSynchronize::_not_synchronized); | |
| 667 | |
| 668 __ jcc(Assembler::notEqual, slow_path); | |
| 669 // rbx: method | |
| 670 __ movptr(rax, Address(rsp, wordSize)); | |
| 671 | |
| 672 // check if local 0 != NULL and read field | |
| 673 __ testptr(rax, rax); | |
| 674 __ jcc(Assembler::zero, slow_path); | |
| 675 | |
| 676 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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677 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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678 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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679 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 680 // Shift codes right to get the index on the right. |
| 681 // The bytecode fetched looks like <index><0xb4><0x2a> | |
| 682 __ shrl(rdx, 2 * BitsPerByte); | |
| 683 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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684 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
| 304 | 685 |
| 686 // rax: local 0 | |
| 687 // rbx: method | |
| 688 // rdx: constant pool cache index | |
| 689 // rdi: constant pool cache | |
| 690 | |
| 691 // check if getfield has been resolved and read constant pool cache entry | |
| 692 // check the validity of the cache entry by testing whether _indices field | |
| 693 // contains Bytecode::_getfield in b1 byte. | |
| 694 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
| 695 "adjust shift below"); | |
| 696 __ movl(rcx, | |
| 697 Address(rdi, | |
| 698 rdx, | |
| 699 Address::times_8, | |
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700 ConstantPoolCache::base_offset() + |
| 304 | 701 ConstantPoolCacheEntry::indices_offset())); |
| 702 __ shrl(rcx, 2 * BitsPerByte); | |
| 703 __ andl(rcx, 0xFF); | |
| 704 __ cmpl(rcx, Bytecodes::_getfield); | |
| 705 __ jcc(Assembler::notEqual, slow_path); | |
| 706 | |
| 707 // Note: constant pool entry is not valid before bytecode is resolved | |
| 708 __ movptr(rcx, | |
| 709 Address(rdi, | |
| 710 rdx, | |
| 711 Address::times_8, | |
|
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712 ConstantPoolCache::base_offset() + |
| 304 | 713 ConstantPoolCacheEntry::f2_offset())); |
| 714 // edx: flags | |
| 715 __ movl(rdx, | |
| 716 Address(rdi, | |
| 717 rdx, | |
| 718 Address::times_8, | |
|
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|
719 ConstantPoolCache::base_offset() + |
| 304 | 720 ConstantPoolCacheEntry::flags_offset())); |
| 721 | |
| 722 Label notObj, notInt, notByte, notShort; | |
| 723 const Address field_address(rax, rcx, Address::times_1); | |
| 724 | |
| 725 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 726 // because they are different sizes. | |
| 727 // Use the type from the constant pool cache | |
|
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728 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
|
1d7922586cf6
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|
729 // Make sure we don't need to mask edx after the above shift |
|
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|
730 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 731 |
| 732 __ cmpl(rdx, atos); | |
| 733 __ jcc(Assembler::notEqual, notObj); | |
| 734 // atos | |
| 735 __ load_heap_oop(rax, field_address); | |
| 736 __ jmp(xreturn_path); | |
| 737 | |
| 738 __ bind(notObj); | |
| 739 __ cmpl(rdx, itos); | |
| 740 __ jcc(Assembler::notEqual, notInt); | |
| 741 // itos | |
| 742 __ movl(rax, field_address); | |
| 743 __ jmp(xreturn_path); | |
| 744 | |
| 745 __ bind(notInt); | |
| 746 __ cmpl(rdx, btos); | |
| 747 __ jcc(Assembler::notEqual, notByte); | |
| 748 // btos | |
| 749 __ load_signed_byte(rax, field_address); | |
| 750 __ jmp(xreturn_path); | |
| 751 | |
| 752 __ bind(notByte); | |
| 753 __ cmpl(rdx, stos); | |
| 754 __ jcc(Assembler::notEqual, notShort); | |
| 755 // stos | |
|
622
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jrose
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changeset
|
756 __ load_signed_short(rax, field_address); |
| 304 | 757 __ jmp(xreturn_path); |
| 758 | |
| 759 __ bind(notShort); | |
| 760 #ifdef ASSERT | |
| 761 Label okay; | |
| 762 __ cmpl(rdx, ctos); | |
| 763 __ jcc(Assembler::equal, okay); | |
| 764 __ stop("what type is this?"); | |
| 765 __ bind(okay); | |
| 766 #endif | |
| 767 // ctos | |
|
622
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changeset
|
768 __ load_unsigned_short(rax, field_address); |
| 304 | 769 |
| 770 __ bind(xreturn_path); | |
| 771 | |
| 772 // _ireturn/_areturn | |
| 773 __ pop(rdi); | |
| 774 __ mov(rsp, r13); | |
| 775 __ jmp(rdi); | |
| 776 __ ret(0); | |
| 777 | |
| 778 // generate a vanilla interpreter entry as the slow path | |
| 779 __ bind(slow_path); | |
| 780 (void) generate_normal_entry(false); | |
| 781 } else { | |
| 782 (void) generate_normal_entry(false); | |
| 783 } | |
| 784 | |
| 785 return entry_point; | |
| 786 } | |
| 787 | |
|
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johnc
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changeset
|
788 // Method entry for java.lang.ref.Reference.get. |
|
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johnc
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|
789 address InterpreterGenerator::generate_Reference_get_entry(void) { |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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|
790 #if INCLUDE_ALL_GCS |
|
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johnc
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|
791 // Code: _aload_0, _getfield, _areturn |
|
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792 // parameter size = 1 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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793 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
794 // The code that gets generated by this routine is split into 2 parts: |
|
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johnc
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|
795 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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796 // 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
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|
797 // |
|
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|
798 // Notes:- |
|
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johnc
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799 // * In the G1 code we do not check whether we need to block for |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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800 // a safepoint. If G1 is enabled then we must execute the specialized |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
801 // code for Reference.get (except when the Reference object is null) |
|
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johnc
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802 // 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
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changeset
|
803 // update buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
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changeset
|
804 // 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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|
805 // G1 pre-barrier code is executed when the current method is |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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806 // Reference.get() then going through the normal method entry |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
807 // will be fine. |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
808 // * The G1 code can, however, check the receiver object (the instance |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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809 // 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
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parents:
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changeset
|
810 // Reference object is null then we obviously cannot fetch the referent |
|
e1162778c1c8
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johnc
parents:
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changeset
|
811 // 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
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|
812 // regular method entry code to generate the NPE. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
813 // |
|
e1162778c1c8
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johnc
parents:
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changeset
|
814 // 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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|
815 // |
|
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|
816 // rbx: Method* |
|
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e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
817 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
818 // r13: senderSP must preserve for slow path, set SP to it on fast path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
819 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
820 address entry = __ pc(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
821 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
822 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
e1162778c1c8
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changeset
|
823 guarantee(referent_offset > 0, "referent offset not initialized"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
824 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
825 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
826 Label slow_path; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
827 // rbx: method |
|
e1162778c1c8
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johnc
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|
828 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
829 // Check if local 0 != NULL |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
830 // If the receiver is null then it is OK to jump to the slow path. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
831 __ movptr(rax, Address(rsp, wordSize)); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
832 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
833 __ testptr(rax, rax); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
834 __ jcc(Assembler::zero, slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
835 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
836 // rax: local 0 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
837 // rbx: method (but can be used as scratch now) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
838 // rdx: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
839 // rdi: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
840 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
841 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
842 // the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
843 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
844 // Load the value of the referent field. |
|
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johnc
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changeset
|
845 const Address field_address(rax, referent_offset); |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
846 __ load_heap_oop(rax, field_address); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
847 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
848 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
849 // the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
850 __ g1_write_barrier_pre(noreg /* obj */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
851 rax /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
852 r15_thread /* thread */, |
|
e1162778c1c8
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johnc
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changeset
|
853 rbx /* tmp */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
854 true /* tosca_live */, |
|
e1162778c1c8
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diff
changeset
|
855 true /* expand_call */); |
|
e1162778c1c8
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johnc
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changeset
|
856 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
857 // _areturn |
|
e1162778c1c8
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johnc
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changeset
|
858 __ pop(rdi); // get return address |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
859 __ mov(rsp, r13); // set sp to sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
860 __ jmp(rdi); |
|
e1162778c1c8
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johnc
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|
861 __ ret(0); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
862 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
863 // generate a vanilla interpreter entry as the slow path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
864 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
865 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
866 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
867 return entry; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
868 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
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|
869 #endif // INCLUDE_ALL_GCS |
|
3249
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changeset
|
870 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
871 // If G1 is not enabled then attempt to go through the accessor entry point |
|
e1162778c1c8
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johnc
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changeset
|
872 // Reference.get is an accessor |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
873 return generate_accessor_entry(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
874 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
875 |
|
9025
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
876 // Interpreter stub for calling a compiled method with 3 object arguments |
|
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877 address InterpreterGenerator::generate_execute_compiled_method_entry() { |
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878 address entry_point = __ pc(); |
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879 |
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880 // Pick up the return address |
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881 __ movptr(rax, Address(rsp, 0)); |
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882 |
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883 // Must preserve original SP for loading incoming arguments because |
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884 // we need to align the outgoing SP for compiled code. |
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885 __ movptr(r11, rsp); |
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886 |
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887 // Ensure compiled code always sees stack at proper alignment |
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888 __ andptr(rsp, -16); |
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889 |
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890 // push the return address and misalign the stack that youngest frame always sees |
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891 // as far as the placement of the call instruction |
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892 __ push(rax); |
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893 |
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894 __ movq(j_rarg0, Address(r11, Interpreter::stackElementSize*5)); |
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895 __ movq(j_rarg1, Address(r11, Interpreter::stackElementSize*4)); |
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896 __ movq(j_rarg2, Address(r11, Interpreter::stackElementSize*3)); |
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897 __ movq(j_rarg3, Address(r11, Interpreter::stackElementSize)); |
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898 __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset())); |
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899 return entry_point; |
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900 } |
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901 |
| 0 | 902 // Interpreter stub for calling a native method. (asm interpreter) |
| 903 // This sets up a somewhat different looking stack for calling the | |
| 904 // native method than the typical interpreter frame setup. | |
| 905 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 906 // determine code generation flags | |
| 907 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 908 | |
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909 // rbx: Method* |
| 0 | 910 // r13: sender sp |
| 911 | |
| 912 address entry_point = __ pc(); | |
| 913 | |
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914 const Address constMethod (rbx, Method::const_offset()); |
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915 const Address invocation_counter(rbx, Method:: |
| 0 | 916 invocation_counter_offset() + |
| 917 InvocationCounter::counter_offset()); | |
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918 const Address access_flags (rbx, Method::access_flags_offset()); |
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919 const Address size_of_parameters(rcx, ConstMethod:: |
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920 size_of_parameters_offset()); |
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921 |
| 0 | 922 |
| 923 // get parameter size (always needed) | |
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924 __ movptr(rcx, constMethod); |
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925 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 926 |
| 927 // native calls don't need the stack size check since they have no | |
| 928 // expression stack and the arguments are already on the stack and | |
| 929 // we only add a handful of words to the stack | |
| 930 | |
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931 // rbx: Method* |
| 0 | 932 // rcx: size of parameters |
| 933 // r13: sender sp | |
| 304 | 934 __ pop(rax); // get return address |
| 0 | 935 |
| 936 // for natives the size of locals is zero | |
| 937 | |
| 938 // compute beginning of parameters (r14) | |
| 304 | 939 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 940 |
| 941 // add 2 zero-initialized slots for native calls | |
| 942 // initialize result_handler slot | |
| 304 | 943 __ push((int) NULL_WORD); |
| 0 | 944 // slot for oop temp |
| 945 // (static native method holder mirror/jni oop result) | |
| 304 | 946 __ push((int) NULL_WORD); |
| 0 | 947 |
| 948 if (inc_counter) { | |
| 949 __ movl(rcx, invocation_counter); // (pre-)fetch invocation count | |
| 950 } | |
| 951 | |
| 952 // initialize fixed part of activation frame | |
| 953 generate_fixed_frame(true); | |
| 954 | |
| 955 // make sure method is native & not abstract | |
| 956 #ifdef ASSERT | |
| 957 __ movl(rax, access_flags); | |
| 958 { | |
| 959 Label L; | |
| 960 __ testl(rax, JVM_ACC_NATIVE); | |
| 961 __ jcc(Assembler::notZero, L); | |
| 962 __ stop("tried to execute non-native method as native"); | |
| 963 __ bind(L); | |
| 964 } | |
| 965 { | |
| 966 Label L; | |
| 967 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 968 __ jcc(Assembler::zero, L); | |
| 969 __ stop("tried to execute abstract method in interpreter"); | |
| 970 __ bind(L); | |
| 971 } | |
| 972 #endif | |
| 973 | |
| 974 // Since at this point in the method invocation the exception handler | |
| 975 // would try to exit the monitor of synchronized methods which hasn't | |
| 976 // been entered yet, we set the thread local variable | |
| 977 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 978 // check this flag. | |
| 979 | |
| 980 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 981 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 982 __ movbool(do_not_unlock_if_synchronized, true); | |
| 983 | |
| 984 // increment invocation count & check for overflow | |
| 985 Label invocation_counter_overflow; | |
| 986 if (inc_counter) { | |
| 987 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 988 } | |
| 989 | |
| 990 Label continue_after_compile; | |
| 991 __ bind(continue_after_compile); | |
| 992 | |
| 993 bang_stack_shadow_pages(true); | |
| 994 | |
| 995 // reset the _do_not_unlock_if_synchronized flag | |
| 996 __ movbool(do_not_unlock_if_synchronized, false); | |
| 997 | |
| 998 // check for synchronized methods | |
| 999 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1000 // so method is not locked if overflows. | |
| 1001 if (synchronized) { | |
| 1002 lock_method(); | |
| 1003 } else { | |
| 1004 // no synchronization necessary | |
| 1005 #ifdef ASSERT | |
| 1006 { | |
| 1007 Label L; | |
| 1008 __ movl(rax, access_flags); | |
| 1009 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1010 __ jcc(Assembler::zero, L); | |
| 1011 __ stop("method needs synchronization"); | |
| 1012 __ bind(L); | |
| 1013 } | |
| 1014 #endif | |
| 1015 } | |
| 1016 | |
| 1017 // start execution | |
| 1018 #ifdef ASSERT | |
| 1019 { | |
| 1020 Label L; | |
| 1021 const Address monitor_block_top(rbp, | |
| 1022 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1023 __ movptr(rax, monitor_block_top); |
| 1024 __ cmpptr(rax, rsp); | |
| 0 | 1025 __ jcc(Assembler::equal, L); |
| 1026 __ stop("broken stack frame setup in interpreter"); | |
| 1027 __ bind(L); | |
| 1028 } | |
| 1029 #endif | |
| 1030 | |
| 1031 // jvmti support | |
| 1032 __ notify_method_entry(); | |
| 1033 | |
| 1034 // work registers | |
| 1035 const Register method = rbx; | |
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1036 const Register t = r11; |
| 0 | 1037 |
| 1038 // allocate space for parameters | |
| 1039 __ get_method(method); | |
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1040 __ movptr(t, Address(method, Method::const_offset())); |
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1041 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
| 1506 | 1042 __ shll(t, Interpreter::logStackElementSize); |
| 0 | 1043 |
| 304 | 1044 __ subptr(rsp, t); |
| 1045 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
| 605 | 1046 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
| 0 | 1047 |
| 1048 // get signature handler | |
| 1049 { | |
| 1050 Label L; | |
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1051 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 304 | 1052 __ testptr(t, t); |
| 0 | 1053 __ jcc(Assembler::notZero, L); |
| 1054 __ call_VM(noreg, | |
| 1055 CAST_FROM_FN_PTR(address, | |
| 1056 InterpreterRuntime::prepare_native_call), | |
| 1057 method); | |
| 1058 __ get_method(method); | |
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1059 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 0 | 1060 __ bind(L); |
| 1061 } | |
| 1062 | |
| 1063 // call signature handler | |
| 1064 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
| 1065 "adjust this code"); | |
| 1066 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
| 1067 "adjust this code"); | |
| 1068 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
| 1069 "adjust this code"); | |
| 1070 | |
| 1071 // The generated handlers do not touch RBX (the method oop). | |
| 1072 // However, large signatures cannot be cached and are generated | |
| 1073 // each time here. The slow-path generator can do a GC on return, | |
| 1074 // so we must reload it after the call. | |
| 1075 __ call(t); | |
| 1076 __ get_method(method); // slow path can do a GC, reload RBX | |
| 1077 | |
| 1078 | |
| 1079 // result handler is in rax | |
| 1080 // set result handler | |
| 304 | 1081 __ movptr(Address(rbp, |
| 1082 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
| 1083 rax); | |
| 0 | 1084 |
| 1085 // pass mirror handle if static call | |
| 1086 { | |
| 1087 Label L; | |
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1088 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1089 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1090 __ testl(t, JVM_ACC_STATIC); |
| 1091 __ jcc(Assembler::zero, L); | |
| 1092 // get mirror | |
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1093 __ movptr(t, Address(method, Method::const_offset())); |
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1094 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1095 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 1096 __ movptr(t, Address(t, mirror_offset)); |
| 0 | 1097 // copy mirror into activation frame |
| 304 | 1098 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
| 0 | 1099 t); |
| 1100 // pass handle to mirror | |
| 304 | 1101 __ lea(c_rarg1, |
| 1102 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
| 0 | 1103 __ bind(L); |
| 1104 } | |
| 1105 | |
| 1106 // get native function entry point | |
| 1107 { | |
| 1108 Label L; | |
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1109 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1110 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
| 1111 __ movptr(rscratch2, unsatisfied.addr()); | |
| 304 | 1112 __ cmpptr(rax, rscratch2); |
| 0 | 1113 __ jcc(Assembler::notEqual, L); |
| 1114 __ call_VM(noreg, | |
| 1115 CAST_FROM_FN_PTR(address, | |
| 1116 InterpreterRuntime::prepare_native_call), | |
| 1117 method); | |
| 1118 __ get_method(method); | |
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1119 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1120 __ bind(L); |
| 1121 } | |
| 1122 | |
| 1123 // pass JNIEnv | |
| 304 | 1124 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
| 0 | 1125 |
| 1126 // It is enough that the pc() points into the right code | |
| 1127 // segment. It does not have to be the correct return pc. | |
| 1128 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
| 1129 | |
| 1130 // change thread state | |
| 1131 #ifdef ASSERT | |
| 1132 { | |
| 1133 Label L; | |
| 1134 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
| 1135 __ cmpl(t, _thread_in_Java); | |
| 1136 __ jcc(Assembler::equal, L); | |
| 1137 __ stop("Wrong thread state in native stub"); | |
| 1138 __ bind(L); | |
| 1139 } | |
| 1140 #endif | |
| 1141 | |
| 1142 // Change state to native | |
| 1143 | |
| 1144 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1145 _thread_in_native); | |
| 1146 | |
| 1147 // Call the native method. | |
| 1148 __ call(rax); | |
| 1149 // result potentially in rax or xmm0 | |
| 1150 | |
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1151 // Verify or restore cpu control state after JNI call |
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1152 __ restore_cpu_control_state_after_jni(); |
| 0 | 1153 |
| 1154 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
| 1155 // in order to extract the result of a method call. If the order of these | |
| 1156 // pushes change or anything else is added to the stack then the code in | |
| 1157 // interpreter_frame_result must also change. | |
| 1158 | |
| 1159 __ push(dtos); | |
| 1160 __ push(ltos); | |
| 1161 | |
| 1162 // change thread state | |
| 1163 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1164 _thread_in_native_trans); | |
| 1165 | |
| 1166 if (os::is_MP()) { | |
| 1167 if (UseMembar) { | |
| 1168 // Force this write out before the read below | |
| 1169 __ membar(Assembler::Membar_mask_bits( | |
| 1170 Assembler::LoadLoad | Assembler::LoadStore | | |
| 1171 Assembler::StoreLoad | Assembler::StoreStore)); | |
| 1172 } else { | |
| 1173 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1174 // We use the current thread pointer to calculate a thread specific | |
| 1175 // offset to write to within the page. This minimizes bus traffic | |
| 1176 // due to cache line collision. | |
| 1177 __ serialize_memory(r15_thread, rscratch2); | |
| 1178 } | |
| 1179 } | |
| 1180 | |
| 1181 // check for safepoint operation in progress and/or pending suspend requests | |
| 1182 { | |
| 1183 Label Continue; | |
| 1184 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 1185 SafepointSynchronize::_not_synchronized); | |
| 1186 | |
| 1187 Label L; | |
| 1188 __ jcc(Assembler::notEqual, L); | |
| 1189 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
| 1190 __ jcc(Assembler::equal, Continue); | |
| 1191 __ bind(L); | |
| 1192 | |
| 1193 // Don't use call_VM as it will see a possible pending exception | |
| 1194 // and forward it and never return here preventing us from | |
| 1195 // clearing _last_native_pc down below. Also can't use | |
| 1196 // call_VM_leaf either as it will check to see if r13 & r14 are | |
| 1197 // preserved and correspond to the bcp/locals pointers. So we do a | |
| 1198 // runtime call by hand. | |
| 1199 // | |
| 304 | 1200 __ mov(c_rarg0, r15_thread); |
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1201 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1202 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1203 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1204 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
| 304 | 1205 __ mov(rsp, r12); // restore sp |
|
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1206 __ reinit_heapbase(); |
| 0 | 1207 __ bind(Continue); |
| 1208 } | |
| 1209 | |
| 1210 // change thread state | |
| 1211 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
| 1212 | |
| 1213 // reset_last_Java_frame | |
| 1214 __ reset_last_Java_frame(true, true); | |
| 1215 | |
| 1216 // reset handle block | |
| 304 | 1217 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
| 1218 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
| 0 | 1219 |
| 1220 // If result is an oop unbox and store it in frame where gc will see it | |
| 1221 // and result handler will pick it up | |
| 1222 | |
| 1223 { | |
| 1224 Label no_oop, store_result; | |
| 1225 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
| 304 | 1226 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
| 0 | 1227 __ jcc(Assembler::notEqual, no_oop); |
| 1228 // retrieve result | |
| 1229 __ pop(ltos); | |
| 304 | 1230 __ testptr(rax, rax); |
| 0 | 1231 __ jcc(Assembler::zero, store_result); |
| 304 | 1232 __ movptr(rax, Address(rax, 0)); |
| 0 | 1233 __ bind(store_result); |
| 304 | 1234 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
| 0 | 1235 // keep stack depth as expected by pushing oop which will eventually be discarde |
| 1236 __ push(ltos); | |
| 1237 __ bind(no_oop); | |
| 1238 } | |
| 1239 | |
| 1240 | |
| 1241 { | |
| 1242 Label no_reguard; | |
| 1243 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
| 1244 JavaThread::stack_guard_yellow_disabled); | |
| 1245 __ jcc(Assembler::notEqual, no_reguard); | |
| 1246 | |
| 304 | 1247 __ pusha(); // XXX only save smashed registers |
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1248 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1249 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1250 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1251 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
| 304 | 1252 __ mov(rsp, r12); // restore sp |
| 1253 __ popa(); // XXX only restore smashed registers | |
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1254 __ reinit_heapbase(); |
| 0 | 1255 |
| 1256 __ bind(no_reguard); | |
| 1257 } | |
| 1258 | |
| 1259 | |
| 1260 // The method register is junk from after the thread_in_native transition | |
| 1261 // until here. Also can't call_VM until the bcp has been | |
| 1262 // restored. Need bcp for throwing exception below so get it now. | |
| 1263 __ get_method(method); | |
| 1264 | |
| 1265 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
| 1266 // r13 == code_base() | |
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1267 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1268 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
| 0 | 1269 // handle exceptions (exception handling will handle unlocking!) |
| 1270 { | |
| 1271 Label L; | |
| 304 | 1272 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 1273 __ jcc(Assembler::zero, L); |
| 1274 // Note: At some point we may want to unify this with the code | |
| 1275 // used in call_VM_base(); i.e., we should use the | |
| 1276 // StubRoutines::forward_exception code. For now this doesn't work | |
| 1277 // here because the rsp is not correctly set at this point. | |
| 1278 __ MacroAssembler::call_VM(noreg, | |
| 1279 CAST_FROM_FN_PTR(address, | |
| 1280 InterpreterRuntime::throw_pending_exception)); | |
| 1281 __ should_not_reach_here(); | |
| 1282 __ bind(L); | |
| 1283 } | |
| 1284 | |
| 1285 // do unlocking if necessary | |
| 1286 { | |
| 1287 Label L; | |
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1288 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1289 __ testl(t, JVM_ACC_SYNCHRONIZED); |
| 1290 __ jcc(Assembler::zero, L); | |
| 1291 // the code below should be shared with interpreter macro | |
| 1292 // assembler implementation | |
| 1293 { | |
| 1294 Label unlock; | |
| 1295 // BasicObjectLock will be first in list, since this is a | |
| 1296 // synchronized method. However, need to check that the object | |
| 1297 // has not been unlocked by an explicit monitorexit bytecode. | |
| 1298 const Address monitor(rbp, | |
| 1299 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
| 1300 wordSize - sizeof(BasicObjectLock))); | |
| 1301 | |
| 1302 // monitor expect in c_rarg1 for slow unlock path | |
| 304 | 1303 __ lea(c_rarg1, monitor); // address of first monitor |
| 0 | 1304 |
| 304 | 1305 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 1306 __ testptr(t, t); | |
| 0 | 1307 __ jcc(Assembler::notZero, unlock); |
| 1308 | |
| 1309 // Entry already unlocked, need to throw exception | |
| 1310 __ MacroAssembler::call_VM(noreg, | |
| 1311 CAST_FROM_FN_PTR(address, | |
| 1312 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 1313 __ should_not_reach_here(); | |
| 1314 | |
| 1315 __ bind(unlock); | |
| 1316 __ unlock_object(c_rarg1); | |
| 1317 } | |
| 1318 __ bind(L); | |
| 1319 } | |
| 1320 | |
| 1321 // jvmti support | |
| 1322 // Note: This must happen _after_ handling/throwing any exceptions since | |
| 1323 // the exception handler code notifies the runtime of method exits | |
| 1324 // too. If this happens before, method entry/exit notifications are | |
| 1325 // not properly paired (was bug - gri 11/22/99). | |
| 1326 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1327 | |
| 1328 // restore potential result in edx:eax, call result handler to | |
| 1329 // restore potential result in ST0 & handle result | |
| 1330 | |
| 1331 __ pop(ltos); | |
| 1332 __ pop(dtos); | |
| 1333 | |
| 304 | 1334 __ movptr(t, Address(rbp, |
| 1335 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
| 0 | 1336 __ call(t); |
| 1337 | |
| 1338 // remove activation | |
| 304 | 1339 __ movptr(t, Address(rbp, |
| 1340 frame::interpreter_frame_sender_sp_offset * | |
| 1341 wordSize)); // get sender sp | |
| 0 | 1342 __ leave(); // remove frame anchor |
| 304 | 1343 __ pop(rdi); // get return address |
| 1344 __ mov(rsp, t); // set sp to sender sp | |
| 0 | 1345 __ jmp(rdi); |
| 1346 | |
| 1347 if (inc_counter) { | |
| 1348 // Handle overflow of counter and compile method | |
| 1349 __ bind(invocation_counter_overflow); | |
| 1350 generate_counter_overflow(&continue_after_compile); | |
| 1351 } | |
| 1352 | |
| 1353 return entry_point; | |
| 1354 } | |
| 1355 | |
| 1356 // | |
| 1357 // Generic interpreted method entry to (asm) interpreter | |
| 1358 // | |
| 1359 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1360 // determine code generation flags | |
| 1361 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1362 | |
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1363 // ebx: Method* |
| 0 | 1364 // r13: sender sp |
| 1365 address entry_point = __ pc(); | |
| 1366 | |
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1367 const Address constMethod(rbx, Method::const_offset()); |
| 0 | 1368 const Address invocation_counter(rbx, |
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1369 Method::invocation_counter_offset() + |
| 0 | 1370 InvocationCounter::counter_offset()); |
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1371 const Address access_flags(rbx, Method::access_flags_offset()); |
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1372 const Address size_of_parameters(rdx, |
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1373 ConstMethod::size_of_parameters_offset()); |
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1374 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1375 |
| 0 | 1376 |
| 1377 // get parameter size (always needed) | |
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1378 __ movptr(rdx, constMethod); |
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1379 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1380 |
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1381 // rbx: Method* |
| 0 | 1382 // rcx: size of parameters |
| 1383 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
| 1384 | |
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1385 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
| 0 | 1386 __ subl(rdx, rcx); // rdx = no. of additional locals |
| 1387 | |
| 1388 // YYY | |
| 1389 // __ incrementl(rdx); | |
| 1390 // __ andl(rdx, -2); | |
| 1391 | |
| 1392 // see if we've got enough room on the stack for locals plus overhead. | |
| 1393 generate_stack_overflow_check(); | |
| 1394 | |
| 1395 // get return address | |
| 304 | 1396 __ pop(rax); |
| 0 | 1397 |
| 1398 // compute beginning of parameters (r14) | |
| 304 | 1399 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1400 |
| 1401 // rdx - # of additional locals | |
| 1402 // allocate space for locals | |
| 1403 // explicitly initialize locals | |
| 1404 { | |
| 1405 Label exit, loop; | |
| 1406 __ testl(rdx, rdx); | |
| 1407 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
| 1408 __ bind(loop); | |
| 304 | 1409 __ push((int) NULL_WORD); // initialize local variables |
| 0 | 1410 __ decrementl(rdx); // until everything initialized |
| 1411 __ jcc(Assembler::greater, loop); | |
| 1412 __ bind(exit); | |
| 1413 } | |
| 1414 | |
| 1415 // (pre-)fetch invocation count | |
| 1416 if (inc_counter) { | |
| 1417 __ movl(rcx, invocation_counter); | |
| 1418 } | |
| 1419 // initialize fixed part of activation frame | |
| 1420 generate_fixed_frame(false); | |
| 1421 | |
| 1422 // make sure method is not native & not abstract | |
| 1423 #ifdef ASSERT | |
| 1424 __ movl(rax, access_flags); | |
| 1425 { | |
| 1426 Label L; | |
| 1427 __ testl(rax, JVM_ACC_NATIVE); | |
| 1428 __ jcc(Assembler::zero, L); | |
| 1429 __ stop("tried to execute native method as non-native"); | |
| 1430 __ bind(L); | |
| 1431 } | |
| 1432 { | |
| 1433 Label L; | |
| 1434 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1435 __ jcc(Assembler::zero, L); | |
| 1436 __ stop("tried to execute abstract method in interpreter"); | |
| 1437 __ bind(L); | |
| 1438 } | |
| 1439 #endif | |
| 1440 | |
| 1441 // Since at this point in the method invocation the exception | |
| 1442 // handler would try to exit the monitor of synchronized methods | |
| 1443 // which hasn't been entered yet, we set the thread local variable | |
| 1444 // _do_not_unlock_if_synchronized to true. The remove_activation | |
| 1445 // will check this flag. | |
| 1446 | |
| 1447 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1448 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1449 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1450 | |
| 1451 // increment invocation count & check for overflow | |
| 1452 Label invocation_counter_overflow; | |
| 1453 Label profile_method; | |
| 1454 Label profile_method_continue; | |
| 1455 if (inc_counter) { | |
| 1456 generate_counter_incr(&invocation_counter_overflow, | |
| 1457 &profile_method, | |
| 1458 &profile_method_continue); | |
| 1459 if (ProfileInterpreter) { | |
| 1460 __ bind(profile_method_continue); | |
| 1461 } | |
| 1462 } | |
| 1463 | |
| 1464 Label continue_after_compile; | |
| 1465 __ bind(continue_after_compile); | |
| 1466 | |
| 1467 // check for synchronized interpreted methods | |
| 1468 bang_stack_shadow_pages(false); | |
| 1469 | |
| 1470 // reset the _do_not_unlock_if_synchronized flag | |
| 1471 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1472 | |
| 1473 // check for synchronized methods | |
| 1474 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1475 // so method is not locked if overflows. | |
| 1476 if (synchronized) { | |
| 1477 // Allocate monitor and lock method | |
| 1478 lock_method(); | |
| 1479 } else { | |
| 1480 // no synchronization necessary | |
| 1481 #ifdef ASSERT | |
| 1482 { | |
| 1483 Label L; | |
| 1484 __ movl(rax, access_flags); | |
| 1485 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1486 __ jcc(Assembler::zero, L); | |
| 1487 __ stop("method needs synchronization"); | |
| 1488 __ bind(L); | |
| 1489 } | |
| 1490 #endif | |
| 1491 } | |
| 1492 | |
| 1493 // start execution | |
| 1494 #ifdef ASSERT | |
| 1495 { | |
| 1496 Label L; | |
| 1497 const Address monitor_block_top (rbp, | |
| 1498 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1499 __ movptr(rax, monitor_block_top); |
| 1500 __ cmpptr(rax, rsp); | |
| 0 | 1501 __ jcc(Assembler::equal, L); |
| 1502 __ stop("broken stack frame setup in interpreter"); | |
| 1503 __ bind(L); | |
| 1504 } | |
| 1505 #endif | |
| 1506 | |
| 1507 // jvmti support | |
| 1508 __ notify_method_entry(); | |
| 1509 | |
| 1510 __ dispatch_next(vtos); | |
| 1511 | |
| 1512 // invocation counter overflow | |
| 1513 if (inc_counter) { | |
| 1514 if (ProfileInterpreter) { | |
| 1515 // We have decided to profile this method in the interpreter | |
| 1516 __ bind(profile_method); | |
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1517 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
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1518 __ set_method_data_pointer_for_bcp(); |
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1519 __ get_method(rbx); |
| 0 | 1520 __ jmp(profile_method_continue); |
| 1521 } | |
| 1522 // Handle overflow of counter and compile method | |
| 1523 __ bind(invocation_counter_overflow); | |
| 1524 generate_counter_overflow(&continue_after_compile); | |
| 1525 } | |
| 1526 | |
| 1527 return entry_point; | |
| 1528 } | |
| 1529 | |
| 1530 // Entry points | |
| 1531 // | |
| 1532 // Here we generate the various kind of entries into the interpreter. | |
| 1533 // The two main entry type are generic bytecode methods and native | |
| 1534 // call method. These both come in synchronized and non-synchronized | |
| 1535 // versions but the frame layout they create is very similar. The | |
| 1536 // other method entry types are really just special purpose entries | |
| 1537 // that are really entry and interpretation all in one. These are for | |
| 1538 // trivial methods like accessor, empty, or special math methods. | |
| 1539 // | |
| 1540 // When control flow reaches any of the entry types for the interpreter | |
| 1541 // the following holds -> | |
| 1542 // | |
| 1543 // Arguments: | |
| 1544 // | |
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1545 // rbx: Method* |
| 0 | 1546 // |
| 1547 // Stack layout immediately at entry | |
| 1548 // | |
| 1549 // [ return address ] <--- rsp | |
| 1550 // [ parameter n ] | |
| 1551 // ... | |
| 1552 // [ parameter 1 ] | |
| 1553 // [ expression stack ] (caller's java expression stack) | |
| 1554 | |
| 1555 // Assuming that we don't go to one of the trivial specialized entries | |
| 1556 // the stack will look like below when we are ready to execute the | |
| 1557 // first bytecode (or call the native routine). The register usage | |
| 1558 // will be as the template based interpreter expects (see | |
| 1559 // interpreter_amd64.hpp). | |
| 1560 // | |
| 1561 // local variables follow incoming parameters immediately; i.e. | |
| 1562 // the return address is moved to the end of the locals). | |
| 1563 // | |
| 1564 // [ monitor entry ] <--- rsp | |
| 1565 // ... | |
| 1566 // [ monitor entry ] | |
| 1567 // [ expr. stack bottom ] | |
| 1568 // [ saved r13 ] | |
| 1569 // [ current r14 ] | |
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1570 // [ Method* ] |
| 0 | 1571 // [ saved ebp ] <--- rbp |
| 1572 // [ return address ] | |
| 1573 // [ local variable m ] | |
| 1574 // ... | |
| 1575 // [ local variable 1 ] | |
| 1576 // [ parameter n ] | |
| 1577 // ... | |
| 1578 // [ parameter 1 ] <--- r14 | |
| 1579 | |
| 1580 address AbstractInterpreterGenerator::generate_method_entry( | |
| 1581 AbstractInterpreter::MethodKind kind) { | |
| 1582 // determine code generation flags | |
| 1583 bool synchronized = false; | |
| 1584 address entry_point = NULL; | |
| 1585 | |
| 1586 switch (kind) { | |
| 1587 case Interpreter::zerolocals : break; | |
| 1588 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
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1589 case Interpreter::execute_compiled_method: entry_point = ((InterpreterGenerator*)this)->generate_execute_compiled_method_entry(); break; |
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1590 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; |
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1591 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; |
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1592 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
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1593 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; |
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1594 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; |
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1595 |
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1596 case Interpreter::java_lang_math_sin : // fall thru |
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1597 case Interpreter::java_lang_math_cos : // fall thru |
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1598 case Interpreter::java_lang_math_tan : // fall thru |
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1599 case Interpreter::java_lang_math_abs : // fall thru |
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1600 case Interpreter::java_lang_math_log : // fall thru |
|
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1601 case Interpreter::java_lang_math_log10 : // fall thru |
|
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|
1602 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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|
1603 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1604 case Interpreter::java_lang_math_exp : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break; |
|
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|
1605 case Interpreter::java_lang_ref_reference_get |
|
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1606 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
|
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|
1607 default: |
|
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1608 fatal(err_msg("unexpected method kind: %d", kind)); |
|
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1609 break; |
| 0 | 1610 } |
| 1611 | |
| 1612 if (entry_point) { | |
| 1613 return entry_point; | |
| 1614 } | |
| 1615 | |
| 1616 return ((InterpreterGenerator*) this)-> | |
| 1617 generate_normal_entry(synchronized); | |
| 1618 } | |
| 1619 | |
|
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1620 // These should never be compiled since the interpreter will prefer |
|
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1621 // the compiled version to the intrinsic version. |
|
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|
1622 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
|
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1623 switch (method_kind(m)) { |
|
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1624 case Interpreter::java_lang_math_sin : // fall thru |
|
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1625 case Interpreter::java_lang_math_cos : // fall thru |
|
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|
1626 case Interpreter::java_lang_math_tan : // fall thru |
|
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|
1627 case Interpreter::java_lang_math_abs : // fall thru |
|
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|
1628 case Interpreter::java_lang_math_log : // fall thru |
|
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1629 case Interpreter::java_lang_math_log10 : // fall thru |
|
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1630 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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|
1631 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1632 case Interpreter::java_lang_math_exp : |
|
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|
1633 return false; |
|
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|
1634 default: |
|
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|
1635 return true; |
|
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|
1636 } |
|
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|
1637 } |
|
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|
1638 |
| 0 | 1639 // How much stack a method activation needs in words. |
|
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1640 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1641 const int entry_size = frame::interpreter_frame_monitor_size(); |
| 1642 | |
| 1643 // total overhead size: entry_size + (saved rbp thru expr stack | |
| 1644 // bottom). be sure to change this if you add/subtract anything | |
| 1645 // to/from the overhead area | |
| 1646 const int overhead_size = | |
| 1647 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
| 1648 | |
| 1649 const int stub_code = frame::entry_frame_after_call_words; | |
|
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1650 const int extra_stack = Method::extra_stack_entries(); |
| 710 | 1651 const int method_stack = (method->max_locals() + method->max_stack() + extra_stack) * |
| 1506 | 1652 Interpreter::stackElementWords; |
| 0 | 1653 return (overhead_size + method_stack + stub_code); |
| 1654 } | |
| 1655 | |
|
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|
1656 int AbstractInterpreter::layout_activation(Method* method, |
| 0 | 1657 int tempcount, |
| 1658 int popframe_extra_args, | |
| 1659 int moncount, | |
|
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|
1660 int caller_actual_parameters, |
| 0 | 1661 int callee_param_count, |
| 1662 int callee_locals, | |
| 1663 frame* caller, | |
| 1664 frame* interpreter_frame, | |
|
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|
1665 bool is_top_frame, |
|
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|
1666 bool is_bottom_frame) { |
| 0 | 1667 // Note: This calculation must exactly parallel the frame setup |
| 1668 // in AbstractInterpreterGenerator::generate_method_entry. | |
| 1669 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
| 1670 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
| 1671 // right size, as determined by a previous call to this method. | |
| 1672 // It is also guaranteed to be walkable even though it is in a skeletal state | |
| 1673 | |
| 1674 // fixed size of an interpreter frame: | |
| 1506 | 1675 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
| 0 | 1676 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
| 1506 | 1677 Interpreter::stackElementWords; |
| 0 | 1678 |
| 1679 int overhead = frame::sender_sp_offset - | |
| 1680 frame::interpreter_frame_initial_sp_offset; | |
| 1681 // Our locals were accounted for by the caller (or last_frame_adjust | |
| 1682 // on the transistion) Since the callee parameters already account | |
| 1683 // for the callee's params we only need to account for the extra | |
| 1684 // locals. | |
| 1685 int size = overhead + | |
| 1506 | 1686 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
| 0 | 1687 moncount * frame::interpreter_frame_monitor_size() + |
| 1506 | 1688 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
| 0 | 1689 if (interpreter_frame != NULL) { |
| 1690 #ifdef ASSERT | |
|
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|
1691 if (!EnableInvokeDynamic) |
|
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|
1692 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
|
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|
1693 // Probably, since deoptimization doesn't work yet. |
|
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|
1694 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
| 0 | 1695 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
| 1696 #endif | |
| 1697 | |
| 1698 interpreter_frame->interpreter_frame_set_method(method); | |
| 1699 // NOTE the difference in using sender_sp and | |
| 1700 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
| 1701 // the original sp of the caller (the unextended_sp) and | |
| 1702 // sender_sp is fp+16 XXX | |
| 1703 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
| 1704 | |
|
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|
1705 #ifdef ASSERT |
|
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|
1706 if (caller->is_interpreted_frame()) { |
|
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|
1707 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
|
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|
1708 } |
|
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|
1709 #endif |
|
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|
1710 |
| 0 | 1711 interpreter_frame->interpreter_frame_set_locals(locals); |
| 1712 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
| 1713 BasicObjectLock* monbot = montop - moncount; | |
| 1714 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
| 1715 | |
| 1716 // Set last_sp | |
| 1717 intptr_t* esp = (intptr_t*) monbot - | |
| 1506 | 1718 tempcount*Interpreter::stackElementWords - |
| 0 | 1719 popframe_extra_args; |
| 1720 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
| 1721 | |
| 1722 // All frames but the initial (oldest) interpreter frame we fill in have | |
| 1723 // a value for sender_sp that allows walking the stack but isn't | |
| 1724 // truly correct. Correct the value here. | |
| 1725 if (extra_locals != 0 && | |
| 1726 interpreter_frame->sender_sp() == | |
| 1727 interpreter_frame->interpreter_frame_sender_sp()) { | |
| 1728 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
| 1729 extra_locals); | |
| 1730 } | |
| 1731 *interpreter_frame->interpreter_frame_cache_addr() = | |
| 1732 method->constants()->cache(); | |
| 1733 } | |
| 1734 return size; | |
| 1735 } | |
| 1736 | |
| 1737 //----------------------------------------------------------------------------- | |
| 1738 // Exceptions | |
| 1739 | |
| 1740 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1741 // Entry point in previous activation (i.e., if the caller was | |
| 1742 // interpreted) | |
| 1743 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1744 // Restore sp to interpreter_frame_last_sp even though we are going | |
| 1745 // to empty the expression stack for the exception processing. | |
| 304 | 1746 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 1747 // rax: exception |
| 1748 // rdx: return address/pc that threw exception | |
| 1749 __ restore_bcp(); // r13 points to call/send | |
| 1750 __ restore_locals(); | |
|
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|
1751 __ reinit_heapbase(); // restore r12 as heapbase. |
| 0 | 1752 // Entry point for exceptions thrown within interpreter code |
| 1753 Interpreter::_throw_exception_entry = __ pc(); | |
| 1754 // expression stack is undefined here | |
| 1755 // rax: exception | |
| 1756 // r13: exception bcp | |
| 1757 __ verify_oop(rax); | |
| 304 | 1758 __ mov(c_rarg1, rax); |
| 0 | 1759 |
| 1760 // expression stack must be empty before entering the VM in case of | |
| 1761 // an exception | |
| 1762 __ empty_expression_stack(); | |
| 1763 // find exception handler address and preserve exception oop | |
| 1764 __ call_VM(rdx, | |
| 1765 CAST_FROM_FN_PTR(address, | |
| 1766 InterpreterRuntime::exception_handler_for_exception), | |
| 1767 c_rarg1); | |
| 1768 // rax: exception handler entry point | |
| 1769 // rdx: preserved exception oop | |
| 1770 // r13: bcp for exception handler | |
| 1771 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
| 1772 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
| 1773 | |
| 1774 // If the exception is not handled in the current frame the frame is | |
| 1775 // removed and the exception is rethrown (i.e. exception | |
| 1776 // continuation is _rethrow_exception). | |
| 1777 // | |
| 1778 // Note: At this point the bci is still the bxi for the instruction | |
| 1779 // which caused the exception and the expression stack is | |
| 1780 // empty. Thus, for any VM calls at this point, GC will find a legal | |
| 1781 // oop map (with empty expression stack). | |
| 1782 | |
| 1783 // In current activation | |
| 1784 // tos: exception | |
| 1785 // esi: exception bcp | |
| 1786 | |
| 1787 // | |
| 1788 // JVMTI PopFrame support | |
| 1789 // | |
| 1790 | |
| 1791 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 1792 __ empty_expression_stack(); | |
| 1793 // Set the popframe_processing bit in pending_popframe_condition | |
| 1794 // indicating that we are currently handling popframe, so that | |
| 1795 // call_VMs that may happen later do not trigger new popframe | |
| 1796 // handling cycles. | |
| 1797 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
| 1798 __ orl(rdx, JavaThread::popframe_processing_bit); | |
| 1799 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
| 1800 | |
| 1801 { | |
| 1802 // Check to see whether we are returning to a deoptimized frame. | |
| 1803 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1804 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1805 // In this case, we can't call dispatch_next() after the frame is | |
| 1806 // popped, but instead must save the incoming arguments and restore | |
| 1807 // them after deoptimization has occurred. | |
| 1808 // | |
| 1809 // Note that we don't compare the return PC against the | |
| 1810 // deoptimization blob's unpack entry because of the presence of | |
| 1811 // adapter frames in C2. | |
| 1812 Label caller_not_deoptimized; | |
| 304 | 1813 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
| 0 | 1814 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1815 InterpreterRuntime::interpreter_contains), c_rarg1); | |
| 1816 __ testl(rax, rax); | |
| 1817 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
| 1818 | |
| 1819 // Compute size of arguments for saving when returning to | |
| 1820 // deoptimized caller | |
| 1821 __ get_method(rax); | |
|
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1822 __ movptr(rax, Address(rax, Method::const_offset())); |
|
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1823 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
| 0 | 1824 size_of_parameters_offset()))); |
| 1506 | 1825 __ shll(rax, Interpreter::logStackElementSize); |
| 0 | 1826 __ restore_locals(); // XXX do we need this? |
| 304 | 1827 __ subptr(r14, rax); |
| 1828 __ addptr(r14, wordSize); | |
| 0 | 1829 // Save these arguments |
| 1830 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
| 1831 Deoptimization:: | |
| 1832 popframe_preserve_args), | |
| 1833 r15_thread, rax, r14); | |
| 1834 | |
| 1835 __ remove_activation(vtos, rdx, | |
| 1836 /* throw_monitor_exception */ false, | |
| 1837 /* install_monitor_exception */ false, | |
| 1838 /* notify_jvmdi */ false); | |
| 1839 | |
| 1840 // Inform deoptimization that it is responsible for restoring | |
| 1841 // these arguments | |
| 1842 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1843 JavaThread::popframe_force_deopt_reexecution_bit); | |
| 1844 | |
| 1845 // Continue in deoptimization handler | |
| 1846 __ jmp(rdx); | |
| 1847 | |
| 1848 __ bind(caller_not_deoptimized); | |
| 1849 } | |
| 1850 | |
| 1851 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
| 1852 /* throw_monitor_exception */ false, | |
| 1853 /* install_monitor_exception */ false, | |
| 1854 /* notify_jvmdi */ false); | |
| 1855 | |
| 1856 // Finish with popframe handling | |
| 1857 // A previous I2C followed by a deoptimization might have moved the | |
| 1858 // outgoing arguments further up the stack. PopFrame expects the | |
| 1859 // mutations to those outgoing arguments to be preserved and other | |
| 1860 // constraints basically require this frame to look exactly as | |
| 1861 // though it had previously invoked an interpreted activation with | |
| 1862 // no space between the top of the expression stack (current | |
| 1863 // last_sp) and the top of stack. Rather than force deopt to | |
| 1864 // maintain this kind of invariant all the time we call a small | |
| 1865 // fixup routine to move the mutated arguments onto the top of our | |
| 1866 // expression stack if necessary. | |
| 304 | 1867 __ mov(c_rarg1, rsp); |
| 1868 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
| 0 | 1869 // PC must point into interpreter here |
| 1870 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
| 1871 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
| 1872 __ reset_last_Java_frame(true, true); | |
| 1873 // Restore the last_sp and null it out | |
| 304 | 1874 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 1875 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
| 0 | 1876 |
| 1877 __ restore_bcp(); // XXX do we need this? | |
| 1878 __ restore_locals(); // XXX do we need this? | |
| 1879 // The method data pointer was incremented already during | |
| 1880 // call profiling. We have to restore the mdp for the current bcp. | |
| 1881 if (ProfileInterpreter) { | |
| 1882 __ set_method_data_pointer_for_bcp(); | |
| 1883 } | |
| 1884 | |
| 1885 // Clear the popframe condition flag | |
| 1886 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1887 JavaThread::popframe_inactive); | |
| 1888 | |
| 1889 __ dispatch_next(vtos); | |
| 1890 // end of PopFrame support | |
| 1891 | |
| 1892 Interpreter::_remove_activation_entry = __ pc(); | |
| 1893 | |
| 1894 // preserve exception over this code sequence | |
| 1895 __ pop_ptr(rax); | |
| 304 | 1896 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
| 0 | 1897 // remove the activation (without doing throws on illegalMonitorExceptions) |
| 1898 __ remove_activation(vtos, rdx, false, true, false); | |
| 1899 // restore exception | |
|
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1900 __ get_vm_result(rax, r15_thread); |
| 0 | 1901 |
| 1902 // In between activations - previous activation type unknown yet | |
| 1903 // compute continuation point - the continuation point expects the | |
| 1904 // following registers set up: | |
| 1905 // | |
| 1906 // rax: exception | |
| 1907 // rdx: return address/pc that threw exception | |
| 1908 // rsp: expression stack of caller | |
| 1909 // rbp: ebp of caller | |
| 304 | 1910 __ push(rax); // save exception |
| 1911 __ push(rdx); // save return address | |
| 0 | 1912 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1913 SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 1914 r15_thread, rdx); |
| 304 | 1915 __ mov(rbx, rax); // save exception handler |
| 1916 __ pop(rdx); // restore return address | |
| 1917 __ pop(rax); // restore exception | |
| 0 | 1918 // Note that an "issuing PC" is actually the next PC after the call |
| 1919 __ jmp(rbx); // jump to exception | |
| 1920 // handler of caller | |
| 1921 } | |
| 1922 | |
| 1923 | |
| 1924 // | |
| 1925 // JVMTI ForceEarlyReturn support | |
| 1926 // | |
| 1927 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 1928 address entry = __ pc(); | |
| 1929 | |
| 1930 __ restore_bcp(); | |
| 1931 __ restore_locals(); | |
| 1932 __ empty_expression_stack(); | |
| 1933 __ load_earlyret_value(state); | |
| 1934 | |
| 304 | 1935 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 1936 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
| 1937 | |
| 1938 // Clear the earlyret state | |
| 1939 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
| 1940 | |
| 1941 __ remove_activation(state, rsi, | |
| 1942 false, /* throw_monitor_exception */ | |
| 1943 false, /* install_monitor_exception */ | |
| 1944 true); /* notify_jvmdi */ | |
| 1945 __ jmp(rsi); | |
| 1946 | |
| 1947 return entry; | |
| 1948 } // end of ForceEarlyReturn support | |
| 1949 | |
| 1950 | |
| 1951 //----------------------------------------------------------------------------- | |
| 1952 // Helper for vtos entry point generation | |
| 1953 | |
| 1954 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
| 1955 address& bep, | |
| 1956 address& cep, | |
| 1957 address& sep, | |
| 1958 address& aep, | |
| 1959 address& iep, | |
| 1960 address& lep, | |
| 1961 address& fep, | |
| 1962 address& dep, | |
| 1963 address& vep) { | |
| 1964 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 1965 Label L; | |
| 1966 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
| 1967 fep = __ pc(); __ push_f(); __ jmp(L); | |
| 1968 dep = __ pc(); __ push_d(); __ jmp(L); | |
| 1969 lep = __ pc(); __ push_l(); __ jmp(L); | |
| 1970 bep = cep = sep = | |
| 1971 iep = __ pc(); __ push_i(); | |
| 1972 vep = __ pc(); | |
| 1973 __ bind(L); | |
| 1974 generate_and_dispatch(t); | |
| 1975 } | |
| 1976 | |
| 1977 | |
| 1978 //----------------------------------------------------------------------------- | |
| 1979 // Generation of individual instructions | |
| 1980 | |
| 1981 // helpers for generate_and_dispatch | |
| 1982 | |
| 1983 | |
| 1984 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 1985 : TemplateInterpreterGenerator(code) { | |
| 1986 generate_all(); // down here so it can be "virtual" | |
| 1987 } | |
| 1988 | |
| 1989 //----------------------------------------------------------------------------- | |
| 1990 | |
| 1991 // Non-product code | |
| 1992 #ifndef PRODUCT | |
| 1993 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 1994 address entry = __ pc(); | |
| 1995 | |
| 1996 __ push(state); | |
| 304 | 1997 __ push(c_rarg0); |
| 1998 __ push(c_rarg1); | |
| 1999 __ push(c_rarg2); | |
| 2000 __ push(c_rarg3); | |
| 2001 __ mov(c_rarg2, rax); // Pass itos | |
| 0 | 2002 #ifdef _WIN64 |
| 2003 __ movflt(xmm3, xmm0); // Pass ftos | |
| 2004 #endif | |
| 2005 __ call_VM(noreg, | |
| 2006 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
| 2007 c_rarg1, c_rarg2, c_rarg3); | |
| 304 | 2008 __ pop(c_rarg3); |
| 2009 __ pop(c_rarg2); | |
| 2010 __ pop(c_rarg1); | |
| 2011 __ pop(c_rarg0); | |
| 0 | 2012 __ pop(state); |
| 2013 __ ret(0); // return from result handler | |
| 2014 | |
| 2015 return entry; | |
| 2016 } | |
| 2017 | |
| 2018 void TemplateInterpreterGenerator::count_bytecode() { | |
| 2019 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
| 2020 } | |
| 2021 | |
| 2022 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 2023 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
| 2024 } | |
| 2025 | |
| 2026 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 2027 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
| 2028 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
| 2029 __ orl(rbx, | |
| 2030 ((int) t->bytecode()) << | |
| 2031 BytecodePairHistogram::log2_number_of_codes); | |
| 2032 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
| 2033 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
| 2034 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
| 2035 } | |
| 2036 | |
| 2037 | |
| 2038 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2039 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2040 // The run-time runtime saves the right registers, depending on | |
| 2041 // the tosca in-state for the given template. | |
| 2042 | |
| 2043 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
| 2044 "entry must have been generated"); | |
|
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2045 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 2046 __ andptr(rsp, -16); // align stack as required by ABI |
| 0 | 2047 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
| 304 | 2048 __ mov(rsp, r12); // restore sp |
|
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2049 __ reinit_heapbase(); |
| 0 | 2050 } |
| 2051 | |
| 2052 | |
| 2053 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 2054 Label L; | |
| 2055 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
| 2056 StopInterpreterAt); | |
| 2057 __ jcc(Assembler::notEqual, L); | |
| 2058 __ int3(); | |
| 2059 __ bind(L); | |
| 2060 } | |
| 2061 #endif // !PRODUCT | |
| 304 | 2062 #endif // ! CC_INTERP |