Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 10534:ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Tue, 25 Jun 2013 14:56:56 +0200 |
| parents | 7344fa3e8833 |
| children | 88672775a26c |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
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39 #include "runtime/compilationPolicy.hpp" |
| 1972 | 40 #include "runtime/deoptimization.hpp" |
| 41 #include "runtime/frame.inline.hpp" | |
| 42 #include "runtime/sharedRuntime.hpp" | |
| 43 #include "runtime/stubRoutines.hpp" | |
| 44 #include "runtime/synchronizer.hpp" | |
| 45 #include "runtime/timer.hpp" | |
| 46 #include "runtime/vframeArray.hpp" | |
| 47 #include "utilities/debug.hpp" | |
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48 #include "utilities/macros.hpp" |
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49 #ifdef GRAAL |
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50 #include "graal/graalJavaAccess.hpp" |
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51 #endif |
| 0 | 52 |
| 53 #define __ _masm-> | |
| 54 | |
| 304 | 55 #ifndef CC_INTERP |
| 56 | |
| 0 | 57 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
| 58 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
| 59 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
| 60 | |
| 61 //----------------------------------------------------------------------------- | |
| 62 | |
| 63 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 64 address entry = __ pc(); | |
| 65 | |
| 66 #ifdef ASSERT | |
| 67 { | |
| 68 Label L; | |
| 304 | 69 __ lea(rax, Address(rbp, |
| 70 frame::interpreter_frame_monitor_block_top_offset * | |
| 71 wordSize)); | |
| 72 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
| 73 // grows negative) | |
| 0 | 74 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
| 75 __ stop ("interpreter frame not set up"); | |
| 76 __ bind(L); | |
| 77 } | |
| 78 #endif // ASSERT | |
| 79 // Restore bcp under the assumption that the current frame is still | |
| 80 // interpreted | |
| 81 __ restore_bcp(); | |
| 82 | |
| 83 // expression stack must be empty before entering the VM if an | |
| 84 // exception happened | |
| 85 __ empty_expression_stack(); | |
| 86 // throw exception | |
| 87 __ call_VM(noreg, | |
| 88 CAST_FROM_FN_PTR(address, | |
| 89 InterpreterRuntime::throw_StackOverflowError)); | |
| 90 return entry; | |
| 91 } | |
| 92 | |
| 93 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
| 94 const char* name) { | |
| 95 address entry = __ pc(); | |
| 96 // expression stack must be empty before entering the VM if an | |
| 97 // exception happened | |
| 98 __ empty_expression_stack(); | |
| 99 // setup parameters | |
| 100 // ??? convention: expect aberrant index in register ebx | |
| 101 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 102 __ call_VM(noreg, | |
| 103 CAST_FROM_FN_PTR(address, | |
| 104 InterpreterRuntime:: | |
| 105 throw_ArrayIndexOutOfBoundsException), | |
| 106 c_rarg1, rbx); | |
| 107 return entry; | |
| 108 } | |
| 109 | |
| 110 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 111 address entry = __ pc(); | |
| 112 | |
| 113 // object is at TOS | |
| 304 | 114 __ pop(c_rarg1); |
| 0 | 115 |
| 116 // expression stack must be empty before entering the VM if an | |
| 117 // exception happened | |
| 118 __ empty_expression_stack(); | |
| 119 | |
| 120 __ call_VM(noreg, | |
| 121 CAST_FROM_FN_PTR(address, | |
| 122 InterpreterRuntime:: | |
| 123 throw_ClassCastException), | |
| 124 c_rarg1); | |
| 125 return entry; | |
| 126 } | |
| 127 | |
| 128 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
| 129 const char* name, const char* message, bool pass_oop) { | |
| 130 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 131 address entry = __ pc(); | |
| 132 if (pass_oop) { | |
| 133 // object is at TOS | |
| 304 | 134 __ pop(c_rarg2); |
| 0 | 135 } |
| 136 // expression stack must be empty before entering the VM if an | |
| 137 // exception happened | |
| 138 __ empty_expression_stack(); | |
| 139 // setup parameters | |
| 140 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 141 if (pass_oop) { | |
| 142 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
| 143 InterpreterRuntime:: | |
| 144 create_klass_exception), | |
| 145 c_rarg1, c_rarg2); | |
| 146 } else { | |
| 147 // kind of lame ExternalAddress can't take NULL because | |
| 148 // external_word_Relocation will assert. | |
| 149 if (message != NULL) { | |
| 150 __ lea(c_rarg2, ExternalAddress((address)message)); | |
| 151 } else { | |
| 152 __ movptr(c_rarg2, NULL_WORD); | |
| 153 } | |
| 154 __ call_VM(rax, | |
| 155 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
| 156 c_rarg1, c_rarg2); | |
| 157 } | |
| 158 // throw exception | |
| 159 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 160 return entry; | |
| 161 } | |
| 162 | |
| 163 | |
| 164 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 165 address entry = __ pc(); | |
| 166 // NULL last_sp until next java call | |
| 304 | 167 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 168 __ dispatch_next(state); |
| 169 return entry; | |
| 170 } | |
| 171 | |
| 172 | |
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173 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
| 0 | 174 address entry = __ pc(); |
| 175 | |
| 176 // Restore stack bottom in case i2c adjusted stack | |
| 304 | 177 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 0 | 178 // and NULL it as marker that esp is now tos until next java call |
| 304 | 179 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 180 |
| 181 __ restore_bcp(); | |
| 182 __ restore_locals(); | |
| 304 | 183 |
| 1108 | 184 Label L_got_cache, L_giant_index; |
| 185 if (EnableInvokeDynamic) { | |
| 186 __ cmpb(Address(r13, 0), Bytecodes::_invokedynamic); | |
| 187 __ jcc(Assembler::equal, L_giant_index); | |
| 188 } | |
| 1565 | 189 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
| 1108 | 190 __ bind(L_got_cache); |
| 0 | 191 __ movl(rbx, Address(rbx, rcx, |
| 1108 | 192 Address::times_ptr, |
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193 in_bytes(ConstantPoolCache::base_offset()) + |
| 0 | 194 3 * wordSize)); |
| 195 __ andl(rbx, 0xFF); | |
| 304 | 196 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 197 __ dispatch_next(state, step); |
| 1108 | 198 |
| 199 // out of the main line of code... | |
| 200 if (EnableInvokeDynamic) { | |
| 201 __ bind(L_giant_index); | |
| 1565 | 202 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
| 1108 | 203 __ jmp(L_got_cache); |
| 204 } | |
| 205 | |
| 0 | 206 return entry; |
| 207 } | |
| 208 | |
| 209 | |
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210 address InterpreterGenerator::generate_deopt_entry_for(TosState state, |
| 0 | 211 int step) { |
| 212 address entry = __ pc(); | |
| 213 // NULL last_sp until next java call | |
| 304 | 214 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 215 __ restore_bcp(); |
| 216 __ restore_locals(); | |
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217 // Check if we need to take lock at entry of synchronized method. |
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218 { |
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219 Label L; |
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220 __ cmpb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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221 __ jcc(Assembler::zero, L); |
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222 // Clear flag. |
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223 __ movb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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224 // Satisfy calling convention for lock_method(). |
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225 __ get_method(rbx); |
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226 // Take lock. |
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227 lock_method(); |
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228 __ bind(L); |
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229 } |
| 0 | 230 // handle exceptions |
| 231 { | |
| 232 Label L; | |
| 304 | 233 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 234 __ jcc(Assembler::zero, L); |
| 235 __ call_VM(noreg, | |
| 236 CAST_FROM_FN_PTR(address, | |
| 237 InterpreterRuntime::throw_pending_exception)); | |
| 238 __ should_not_reach_here(); | |
| 239 __ bind(L); | |
| 240 } | |
| 241 __ dispatch_next(state, step); | |
| 242 return entry; | |
| 243 } | |
| 244 | |
| 245 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 246 int i = 0; | |
| 247 switch (type) { | |
| 248 case T_BOOLEAN: i = 0; break; | |
| 249 case T_CHAR : i = 1; break; | |
| 250 case T_BYTE : i = 2; break; | |
| 251 case T_SHORT : i = 3; break; | |
| 252 case T_INT : i = 4; break; | |
| 253 case T_LONG : i = 5; break; | |
| 254 case T_VOID : i = 6; break; | |
| 255 case T_FLOAT : i = 7; break; | |
| 256 case T_DOUBLE : i = 8; break; | |
| 257 case T_OBJECT : i = 9; break; | |
| 258 case T_ARRAY : i = 9; break; | |
| 259 default : ShouldNotReachHere(); | |
| 260 } | |
| 261 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
| 262 "index out of bounds"); | |
| 263 return i; | |
| 264 } | |
| 265 | |
| 266 | |
| 267 address TemplateInterpreterGenerator::generate_result_handler_for( | |
| 268 BasicType type) { | |
| 269 address entry = __ pc(); | |
| 270 switch (type) { | |
| 271 case T_BOOLEAN: __ c2bool(rax); break; | |
| 272 case T_CHAR : __ movzwl(rax, rax); break; | |
| 273 case T_BYTE : __ sign_extend_byte(rax); break; | |
| 274 case T_SHORT : __ sign_extend_short(rax); break; | |
| 275 case T_INT : /* nothing to do */ break; | |
| 276 case T_LONG : /* nothing to do */ break; | |
| 277 case T_VOID : /* nothing to do */ break; | |
| 278 case T_FLOAT : /* nothing to do */ break; | |
| 279 case T_DOUBLE : /* nothing to do */ break; | |
| 280 case T_OBJECT : | |
| 281 // retrieve result from frame | |
| 304 | 282 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
| 0 | 283 // and verify it |
| 284 __ verify_oop(rax); | |
| 285 break; | |
| 286 default : ShouldNotReachHere(); | |
| 287 } | |
| 288 __ ret(0); // return from result handler | |
| 289 return entry; | |
| 290 } | |
| 291 | |
| 292 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
| 293 TosState state, | |
| 294 address runtime_entry) { | |
| 295 address entry = __ pc(); | |
| 296 __ push(state); | |
| 297 __ call_VM(noreg, runtime_entry); | |
| 298 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
| 299 return entry; | |
| 300 } | |
| 301 | |
| 302 | |
| 303 | |
| 304 // Helpers for commoning out cases in the various type of method entries. | |
| 305 // | |
| 306 | |
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307 #ifdef GRAAL |
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308 |
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309 void graal_initialize_time(JavaThread* thread) { |
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310 assert(ProfileInterpreter, "must be profiling interpreter"); |
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311 frame fr = thread->last_frame(); |
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312 assert(fr.is_interpreted_frame(), "must come from interpreter"); |
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313 assert(fr.interpreter_frame_method()->method_counters() != NULL, "need to initialize method counters"); |
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314 fr.interpreter_frame_method()->method_counters()->set_graal_invocation_time(os::javaTimeNanos()); |
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315 } |
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316 |
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317 #endif // GRAAL |
| 0 | 318 |
| 319 // increment invocation count & check for overflow | |
| 320 // | |
| 321 // Note: checking for negative value instead of overflow | |
| 322 // so we have a 'sticky' overflow test | |
| 323 // | |
| 324 // rbx: method | |
| 325 // ecx: invocation counter | |
| 326 // | |
| 327 void InterpreterGenerator::generate_counter_incr( | |
| 328 Label* overflow, | |
| 329 Label* profile_method, | |
| 330 Label* profile_method_continue) { | |
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331 Label done; |
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332 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
| 1783 | 333 if (TieredCompilation) { |
| 334 int increment = InvocationCounter::count_increment; | |
| 335 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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336 Label no_mdo; |
| 1783 | 337 if (ProfileInterpreter) { |
| 338 // Are we profiling? | |
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339 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
| 1783 | 340 __ testptr(rax, rax); |
| 341 __ jccb(Assembler::zero, no_mdo); | |
| 342 // Increment counter in the MDO | |
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343 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 344 in_bytes(InvocationCounter::counter_offset())); |
| 345 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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346 __ jmp(done); |
| 1783 | 347 } |
| 348 __ bind(no_mdo); | |
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349 // Increment counter in MethodCounters |
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350 const Address invocation_counter(rax, |
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351 MethodCounters::invocation_counter_offset() + |
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352 InvocationCounter::counter_offset()); |
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353 __ get_method_counters(rbx, rax, done); |
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354 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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355 false, Assembler::zero, overflow); |
| 1783 | 356 __ bind(done); |
| 357 } else { | |
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358 const Address backedge_counter(rax, |
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359 MethodCounters::backedge_counter_offset() + |
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360 InvocationCounter::counter_offset()); |
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361 const Address invocation_counter(rax, |
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362 MethodCounters::invocation_counter_offset() + |
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363 InvocationCounter::counter_offset()); |
| 0 | 364 |
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365 __ get_method_counters(rbx, rax, done); |
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366 |
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367 if (ProfileInterpreter) { |
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368 __ incrementl(Address(rax, |
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369 MethodCounters::interpreter_invocation_counter_offset())); |
| 1783 | 370 } |
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371 |
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372 #ifdef GRAAL |
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373 if (CompilationPolicyChoice == 4) { |
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374 Label not_zero; |
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375 __ testl(rcx, InvocationCounter::count_mask_value); |
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376 __ jcc(Assembler::notZero, not_zero); |
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377 |
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378 __ push(rax); |
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379 __ push(rcx); |
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380 __ call_VM(noreg, CAST_FROM_FN_PTR(address, graal_initialize_time), rdx, false); |
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381 __ set_method_data_pointer_for_bcp(); |
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382 __ get_method(rbx); |
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383 __ pop(rcx); |
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384 __ pop(rax); |
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385 |
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386 __ testl(rcx, InvocationCounter::count_mask_value); |
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387 __ jcc(Assembler::zero, not_zero); |
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388 __ stop("unexpected counter value in rcx"); |
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389 |
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390 __ bind(not_zero); |
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391 } |
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392 #endif // GRAAL |
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393 |
| 1783 | 394 // Update standard invocation counters |
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395 __ movl(rcx, invocation_counter); |
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396 __ incrementl(rcx, InvocationCounter::count_increment); |
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397 __ movl(invocation_counter, rcx); // save invocation count |
| 0 | 398 |
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399 __ movl(rax, backedge_counter); // load backedge counter |
| 1783 | 400 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
| 0 | 401 |
| 1783 | 402 __ addl(rcx, rax); // add both counters |
| 0 | 403 |
| 1783 | 404 // profile_method is non-null only for interpreted method so |
| 405 // profile_method != NULL == !native_call | |
| 406 | |
| 407 if (ProfileInterpreter && profile_method != NULL) { | |
| 408 // Test to see if we should create a method data oop | |
| 409 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
| 410 __ jcc(Assembler::less, *profile_method_continue); | |
| 0 | 411 |
| 1783 | 412 // if no method data exists, go to profile_method |
| 413 __ test_method_data_pointer(rax, *profile_method); | |
| 414 } | |
| 415 | |
| 416 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
| 417 __ jcc(Assembler::aboveEqual, *overflow); | |
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418 __ bind(done); |
| 0 | 419 } |
| 420 } | |
| 421 | |
| 422 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
| 423 | |
| 424 // Asm interpreter on entry | |
| 425 // r14 - locals | |
| 426 // r13 - bcp | |
| 427 // rbx - method | |
| 428 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
| 429 // rbp - interpreter frame | |
| 430 | |
| 431 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
| 432 // Everything as it was on entry | |
| 433 // rdx is not restored. Doesn't appear to really be set. | |
| 434 | |
| 435 // InterpreterRuntime::frequency_counter_overflow takes two | |
| 436 // arguments, the first (thread) is passed by call_VM, the second | |
| 437 // indicates if the counter overflow occurs at a backwards branch | |
| 438 // (NULL bcp). We pass zero for it. The call returns the address | |
| 439 // of the verified entry point for the method or NULL if the | |
| 440 // compilation did not complete (either went background or bailed | |
| 441 // out). | |
| 442 __ movl(c_rarg1, 0); | |
| 443 __ call_VM(noreg, | |
| 444 CAST_FROM_FN_PTR(address, | |
| 445 InterpreterRuntime::frequency_counter_overflow), | |
| 446 c_rarg1); | |
| 447 | |
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448 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
| 0 | 449 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
| 450 // and jump to the interpreted entry. | |
| 451 __ jmp(*do_continue, relocInfo::none); | |
| 452 } | |
| 453 | |
| 454 // See if we've got enough room on the stack for locals plus overhead. | |
| 455 // The expression stack grows down incrementally, so the normal guard | |
| 456 // page mechanism will work for that. | |
| 457 // | |
| 458 // NOTE: Since the additional locals are also always pushed (wasn't | |
| 459 // obvious in generate_method_entry) so the guard should work for them | |
| 460 // too. | |
| 461 // | |
| 462 // Args: | |
| 463 // rdx: number of additional locals this frame needs (what we must check) | |
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464 // rbx: Method* |
| 0 | 465 // |
| 466 // Kills: | |
| 467 // rax | |
| 468 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
| 469 | |
| 470 // monitor entry size: see picture of stack set | |
| 471 // (generate_method_entry) and frame_amd64.hpp | |
| 472 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 473 | |
| 474 // total overhead size: entry_size + (saved rbp through expr stack | |
| 475 // bottom). be sure to change this if you add/subtract anything | |
| 476 // to/from the overhead area | |
| 477 const int overhead_size = | |
| 478 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
| 479 | |
| 480 const int page_size = os::vm_page_size(); | |
| 481 | |
| 482 Label after_frame_check; | |
| 483 | |
| 484 // see if the frame is greater than one page in size. If so, | |
| 485 // then we need to verify there is enough stack space remaining | |
| 486 // for the additional locals. | |
| 1506 | 487 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
| 0 | 488 __ jcc(Assembler::belowEqual, after_frame_check); |
| 489 | |
| 490 // compute rsp as if this were going to be the last frame on | |
| 491 // the stack before the red zone | |
| 492 | |
| 493 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
| 494 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
| 495 | |
| 496 // locals + overhead, in bytes | |
| 304 | 497 __ mov(rax, rdx); |
| 1506 | 498 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
| 304 | 499 __ addptr(rax, overhead_size); |
| 0 | 500 |
| 501 #ifdef ASSERT | |
| 502 Label stack_base_okay, stack_size_okay; | |
| 503 // verify that thread stack base is non-zero | |
| 304 | 504 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
| 0 | 505 __ jcc(Assembler::notEqual, stack_base_okay); |
| 506 __ stop("stack base is zero"); | |
| 507 __ bind(stack_base_okay); | |
| 508 // verify that thread stack size is non-zero | |
| 304 | 509 __ cmpptr(stack_size, 0); |
| 0 | 510 __ jcc(Assembler::notEqual, stack_size_okay); |
| 511 __ stop("stack size is zero"); | |
| 512 __ bind(stack_size_okay); | |
| 513 #endif | |
| 514 | |
| 515 // Add stack base to locals and subtract stack size | |
| 304 | 516 __ addptr(rax, stack_base); |
| 517 __ subptr(rax, stack_size); | |
| 0 | 518 |
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519 // Use the maximum number of pages we might bang. |
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520 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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521 (StackRedPages+StackYellowPages); |
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522 |
| 0 | 523 // add in the red and yellow zone sizes |
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524 __ addptr(rax, max_pages * page_size); |
| 0 | 525 |
| 526 // check against the current stack bottom | |
| 304 | 527 __ cmpptr(rsp, rax); |
| 0 | 528 __ jcc(Assembler::above, after_frame_check); |
| 529 | |
| 4743 | 530 // Restore sender's sp as SP. This is necessary if the sender's |
| 531 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
| 532 // and safer anyway in case of JSR292 adaptations. | |
| 533 | |
| 534 __ pop(rax); // return address must be moved if SP is changed | |
| 535 __ mov(rsp, r13); | |
| 536 __ push(rax); | |
| 537 | |
| 538 // Note: the restored frame is not necessarily interpreted. | |
| 539 // Use the shared runtime version of the StackOverflowError. | |
| 540 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 541 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
| 0 | 542 |
| 543 // all done with frame size check | |
| 544 __ bind(after_frame_check); | |
| 545 } | |
| 546 | |
| 547 // Allocate monitor and lock method (asm interpreter) | |
| 548 // | |
| 549 // Args: | |
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550 // rbx: Method* |
| 0 | 551 // r14: locals |
| 552 // | |
| 553 // Kills: | |
| 554 // rax | |
| 555 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
| 556 // rscratch1, rscratch2 (scratch regs) | |
| 557 void InterpreterGenerator::lock_method(void) { | |
| 558 // synchronize method | |
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559 const Address access_flags(rbx, Method::access_flags_offset()); |
| 0 | 560 const Address monitor_block_top( |
| 561 rbp, | |
| 562 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 563 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 564 | |
| 565 #ifdef ASSERT | |
| 566 { | |
| 567 Label L; | |
| 568 __ movl(rax, access_flags); | |
| 569 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 570 __ jcc(Assembler::notZero, L); | |
| 571 __ stop("method doesn't need synchronization"); | |
| 572 __ bind(L); | |
| 573 } | |
| 574 #endif // ASSERT | |
| 575 | |
| 576 // get synchronization object | |
| 577 { | |
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578 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 579 Label done; |
| 580 __ movl(rax, access_flags); | |
| 581 __ testl(rax, JVM_ACC_STATIC); | |
| 582 // get receiver (assume this is frequent case) | |
| 304 | 583 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
| 0 | 584 __ jcc(Assembler::zero, done); |
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585 __ movptr(rax, Address(rbx, Method::const_offset())); |
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586 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
| 304 | 587 __ movptr(rax, Address(rax, |
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588 ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 589 __ movptr(rax, Address(rax, mirror_offset)); |
| 0 | 590 |
| 591 #ifdef ASSERT | |
| 592 { | |
| 593 Label L; | |
| 304 | 594 __ testptr(rax, rax); |
| 0 | 595 __ jcc(Assembler::notZero, L); |
| 596 __ stop("synchronization object is NULL"); | |
| 597 __ bind(L); | |
| 598 } | |
| 599 #endif // ASSERT | |
| 600 | |
| 601 __ bind(done); | |
| 602 } | |
| 603 | |
| 604 // add space for monitor & lock | |
| 304 | 605 __ subptr(rsp, entry_size); // add space for a monitor entry |
| 606 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
| 0 | 607 // store object |
| 304 | 608 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 609 __ movptr(c_rarg1, rsp); // object address | |
| 0 | 610 __ lock_object(c_rarg1); |
| 611 } | |
| 612 | |
| 613 // Generate a fixed interpreter frame. This is identical setup for | |
| 614 // interpreted methods and for native methods hence the shared code. | |
| 615 // | |
| 616 // Args: | |
| 617 // rax: return address | |
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618 // rbx: Method* |
| 0 | 619 // r14: pointer to locals |
| 620 // r13: sender sp | |
| 621 // rdx: cp cache | |
| 622 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 623 // initialize fixed part of activation frame | |
| 304 | 624 __ push(rax); // save return address |
| 0 | 625 __ enter(); // save old & set new rbp |
| 304 | 626 __ push(r13); // set sender sp |
| 627 __ push((int)NULL_WORD); // leave last_sp as null | |
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628 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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629 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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630 __ push(rbx); // save Method* |
| 0 | 631 if (ProfileInterpreter) { |
| 632 Label method_data_continue; | |
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633 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 634 __ testptr(rdx, rdx); |
| 0 | 635 __ jcc(Assembler::zero, method_data_continue); |
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636 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
| 0 | 637 __ bind(method_data_continue); |
| 304 | 638 __ push(rdx); // set the mdp (method data pointer) |
| 0 | 639 } else { |
| 304 | 640 __ push(0); |
| 0 | 641 } |
| 642 | |
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643 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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644 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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645 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
| 304 | 646 __ push(rdx); // set constant pool cache |
| 647 __ push(r14); // set locals pointer | |
| 0 | 648 if (native_call) { |
| 304 | 649 __ push(0); // no bcp |
| 0 | 650 } else { |
| 304 | 651 __ push(r13); // set bcp |
| 0 | 652 } |
| 304 | 653 __ push(0); // reserve word for pointer to expression stack bottom |
| 654 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
| 0 | 655 } |
| 656 | |
| 657 // End of helpers | |
| 658 | |
| 304 | 659 // Various method entries |
| 660 //------------------------------------------------------------------------------------------------------------------------ | |
| 661 // | |
| 662 // | |
| 663 | |
| 664 // Call an accessor method (assuming it is resolved, otherwise drop | |
| 665 // into vanilla (slow path) entry | |
| 666 address InterpreterGenerator::generate_accessor_entry(void) { | |
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667 // rbx: Method* |
| 304 | 668 |
| 669 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
| 670 | |
| 671 address entry_point = __ pc(); | |
| 672 Label xreturn_path; | |
| 673 | |
| 674 // do fastpath for resolved accessor methods | |
| 675 if (UseFastAccessorMethods) { | |
| 676 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
| 677 // thereof; parameter size = 1 | |
| 678 // Note: We can only use this code if the getfield has been resolved | |
| 679 // and if we don't have a null-pointer exception => check for | |
| 680 // these conditions first and use slow path if necessary. | |
| 681 Label slow_path; | |
| 682 // If we need a safepoint check, generate full interpreter entry. | |
| 683 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 684 SafepointSynchronize::_not_synchronized); | |
| 685 | |
| 686 __ jcc(Assembler::notEqual, slow_path); | |
| 687 // rbx: method | |
| 688 __ movptr(rax, Address(rsp, wordSize)); | |
| 689 | |
| 690 // check if local 0 != NULL and read field | |
| 691 __ testptr(rax, rax); | |
| 692 __ jcc(Assembler::zero, slow_path); | |
| 693 | |
| 694 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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695 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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696 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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697 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 698 // Shift codes right to get the index on the right. |
| 699 // The bytecode fetched looks like <index><0xb4><0x2a> | |
| 700 __ shrl(rdx, 2 * BitsPerByte); | |
| 701 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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702 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
| 304 | 703 |
| 704 // rax: local 0 | |
| 705 // rbx: method | |
| 706 // rdx: constant pool cache index | |
| 707 // rdi: constant pool cache | |
| 708 | |
| 709 // check if getfield has been resolved and read constant pool cache entry | |
| 710 // check the validity of the cache entry by testing whether _indices field | |
| 711 // contains Bytecode::_getfield in b1 byte. | |
| 712 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
| 713 "adjust shift below"); | |
| 714 __ movl(rcx, | |
| 715 Address(rdi, | |
| 716 rdx, | |
| 717 Address::times_8, | |
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718 ConstantPoolCache::base_offset() + |
| 304 | 719 ConstantPoolCacheEntry::indices_offset())); |
| 720 __ shrl(rcx, 2 * BitsPerByte); | |
| 721 __ andl(rcx, 0xFF); | |
| 722 __ cmpl(rcx, Bytecodes::_getfield); | |
| 723 __ jcc(Assembler::notEqual, slow_path); | |
| 724 | |
| 725 // Note: constant pool entry is not valid before bytecode is resolved | |
| 726 __ movptr(rcx, | |
| 727 Address(rdi, | |
| 728 rdx, | |
| 729 Address::times_8, | |
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730 ConstantPoolCache::base_offset() + |
| 304 | 731 ConstantPoolCacheEntry::f2_offset())); |
| 732 // edx: flags | |
| 733 __ movl(rdx, | |
| 734 Address(rdi, | |
| 735 rdx, | |
| 736 Address::times_8, | |
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737 ConstantPoolCache::base_offset() + |
| 304 | 738 ConstantPoolCacheEntry::flags_offset())); |
| 739 | |
| 740 Label notObj, notInt, notByte, notShort; | |
| 741 const Address field_address(rax, rcx, Address::times_1); | |
| 742 | |
| 743 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 744 // because they are different sizes. | |
| 745 // Use the type from the constant pool cache | |
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746 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
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747 // Make sure we don't need to mask edx after the above shift |
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748 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 749 |
| 750 __ cmpl(rdx, atos); | |
| 751 __ jcc(Assembler::notEqual, notObj); | |
| 752 // atos | |
| 753 __ load_heap_oop(rax, field_address); | |
| 754 __ jmp(xreturn_path); | |
| 755 | |
| 756 __ bind(notObj); | |
| 757 __ cmpl(rdx, itos); | |
| 758 __ jcc(Assembler::notEqual, notInt); | |
| 759 // itos | |
| 760 __ movl(rax, field_address); | |
| 761 __ jmp(xreturn_path); | |
| 762 | |
| 763 __ bind(notInt); | |
| 764 __ cmpl(rdx, btos); | |
| 765 __ jcc(Assembler::notEqual, notByte); | |
| 766 // btos | |
| 767 __ load_signed_byte(rax, field_address); | |
| 768 __ jmp(xreturn_path); | |
| 769 | |
| 770 __ bind(notByte); | |
| 771 __ cmpl(rdx, stos); | |
| 772 __ jcc(Assembler::notEqual, notShort); | |
| 773 // stos | |
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774 __ load_signed_short(rax, field_address); |
| 304 | 775 __ jmp(xreturn_path); |
| 776 | |
| 777 __ bind(notShort); | |
| 778 #ifdef ASSERT | |
| 779 Label okay; | |
| 780 __ cmpl(rdx, ctos); | |
| 781 __ jcc(Assembler::equal, okay); | |
| 782 __ stop("what type is this?"); | |
| 783 __ bind(okay); | |
| 784 #endif | |
| 785 // ctos | |
|
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786 __ load_unsigned_short(rax, field_address); |
| 304 | 787 |
| 788 __ bind(xreturn_path); | |
| 789 | |
| 790 // _ireturn/_areturn | |
| 791 __ pop(rdi); | |
| 792 __ mov(rsp, r13); | |
| 793 __ jmp(rdi); | |
| 794 __ ret(0); | |
| 795 | |
| 796 // generate a vanilla interpreter entry as the slow path | |
| 797 __ bind(slow_path); | |
| 798 (void) generate_normal_entry(false); | |
| 799 } else { | |
| 800 (void) generate_normal_entry(false); | |
| 801 } | |
| 802 | |
| 803 return entry_point; | |
| 804 } | |
| 805 | |
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806 // Method entry for java.lang.ref.Reference.get. |
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807 address InterpreterGenerator::generate_Reference_get_entry(void) { |
|
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808 #if INCLUDE_ALL_GCS |
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809 // Code: _aload_0, _getfield, _areturn |
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810 // parameter size = 1 |
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811 // |
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812 // The code that gets generated by this routine is split into 2 parts: |
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813 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
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814 // 2. The slow path - which is an expansion of the regular method entry. |
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815 // |
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816 // Notes:- |
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817 // * In the G1 code we do not check whether we need to block for |
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818 // a safepoint. If G1 is enabled then we must execute the specialized |
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819 // code for Reference.get (except when the Reference object is null) |
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820 // so that we can log the value in the referent field with an SATB |
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821 // update buffer. |
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822 // If the code for the getfield template is modified so that the |
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823 // G1 pre-barrier code is executed when the current method is |
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824 // Reference.get() then going through the normal method entry |
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825 // will be fine. |
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826 // * The G1 code can, however, check the receiver object (the instance |
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827 // of java.lang.Reference) and jump to the slow path if null. If the |
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828 // Reference object is null then we obviously cannot fetch the referent |
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829 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
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830 // regular method entry code to generate the NPE. |
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831 // |
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832 // This code is based on generate_accessor_enty. |
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833 // |
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834 // rbx: Method* |
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835 |
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836 // r13: senderSP must preserve for slow path, set SP to it on fast path |
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837 |
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838 address entry = __ pc(); |
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839 |
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840 const int referent_offset = java_lang_ref_Reference::referent_offset; |
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841 guarantee(referent_offset > 0, "referent offset not initialized"); |
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842 |
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843 if (UseG1GC) { |
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844 Label slow_path; |
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845 // rbx: method |
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846 |
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847 // Check if local 0 != NULL |
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848 // If the receiver is null then it is OK to jump to the slow path. |
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849 __ movptr(rax, Address(rsp, wordSize)); |
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850 |
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851 __ testptr(rax, rax); |
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852 __ jcc(Assembler::zero, slow_path); |
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853 |
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854 // rax: local 0 |
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855 // rbx: method (but can be used as scratch now) |
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856 // rdx: scratch |
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857 // rdi: scratch |
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858 |
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859 // Generate the G1 pre-barrier code to log the value of |
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860 // the referent field in an SATB buffer. |
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861 |
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862 // Load the value of the referent field. |
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863 const Address field_address(rax, referent_offset); |
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864 __ load_heap_oop(rax, field_address); |
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865 |
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866 // Generate the G1 pre-barrier code to log the value of |
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867 // the referent field in an SATB buffer. |
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868 __ g1_write_barrier_pre(noreg /* obj */, |
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869 rax /* pre_val */, |
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|
870 r15_thread /* thread */, |
|
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|
871 rbx /* tmp */, |
|
e1162778c1c8
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|
872 true /* tosca_live */, |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
873 true /* expand_call */); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
874 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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2245
diff
changeset
|
875 // _areturn |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
changeset
|
876 __ pop(rdi); // get return address |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
877 __ mov(rsp, r13); // set sp to sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
878 __ jmp(rdi); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
879 __ ret(0); |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
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|
880 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
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|
881 // generate a vanilla interpreter entry as the slow path |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
882 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
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|
883 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
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|
884 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
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|
885 return entry; |
|
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johnc
parents:
2245
diff
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|
886 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7402
diff
changeset
|
887 #endif // INCLUDE_ALL_GCS |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
888 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
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|
889 // If G1 is not enabled then attempt to go through the accessor entry point |
|
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|
890 // Reference.get is an accessor |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff
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|
891 return generate_accessor_entry(); |
|
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|
892 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
changeset
|
893 |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
894 #ifdef GRAAL |
|
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
895 |
|
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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
|
896 // Interpreter stub for calling a compiled method with 3 object arguments |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff
changeset
|
897 address InterpreterGenerator::generate_execute_compiled_method_entry() { |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
898 address entry_point = __ pc(); |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
899 |
|
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
|
900 // Pick up the return address |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
901 __ movptr(rax, Address(rsp, 0)); |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
902 |
|
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
|
903 // Must preserve original SP for loading incoming arguments because |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
904 // we need to align the outgoing SP for compiled code. |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
905 __ movptr(r11, rsp); |
|
ff5a32117e02
Implement fast invocation of installed code (direct tail call to the target machine code address).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
8883
diff
changeset
|
906 |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
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|
907 // Move first object argument from interpreter calling convention to compiled |
|
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
908 // code calling convention. |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
909 __ movq(j_rarg0, Address(r11, Interpreter::stackElementSize*4)); |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
910 |
|
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
911 // Move second object argument. |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
912 __ movq(j_rarg1, Address(r11, Interpreter::stackElementSize*3)); |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
913 |
|
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
914 // Move third object argument. |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
915 __ movq(j_rarg2, Address(r11, Interpreter::stackElementSize*2)); |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
916 |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
917 // Load the raw pointer to the HotSpotInstalledCode object. |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
918 __ movq(j_rarg3, Address(r11, Interpreter::stackElementSize)); |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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9025
diff
changeset
|
919 |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
920 // Load the nmethod pointer from the HotSpotInstalledCode object |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
921 __ movq(j_rarg3, Address(j_rarg3, sizeof(oopDesc))); |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
922 |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
923 // Check whether the nmethod was invalidated |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
924 __ testq(j_rarg3, j_rarg3); |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
925 Label invalid_nmethod; |
|
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
926 __ jcc(Assembler::zero, invalid_nmethod); |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
927 |
|
10534
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
928 // Ensure compiled code always sees stack at proper alignment |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
929 __ andptr(rsp, -16); |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
930 |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
931 // push the return address and misalign the stack that youngest frame always sees |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
932 // as far as the placement of the call instruction |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
933 __ push(rax); |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
934 |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
935 // Perform a tail call to the verified entry point of the nmethod. |
|
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
|
936 __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset())); |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
937 |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
938 __ bind(invalid_nmethod); |
|
10479
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10475
diff
changeset
|
939 |
|
10534
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
940 // pop return address, reset last_sp to NULL |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
941 __ empty_expression_stack(); |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
942 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
|
ce09ad599709
Fix bug in executeCompiledMethod interpreter stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10506
diff
changeset
|
943 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
10479
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10475
diff
changeset
|
944 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_InvalidInstalledCodeException)); |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10475
diff
changeset
|
945 // the call_VM checks for exception, so we should never return here. |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10475
diff
changeset
|
946 __ should_not_reach_here(); |
|
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
947 |
|
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
|
948 return entry_point; |
|
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
|
949 } |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2245
diff
changeset
|
950 |
|
9046
c6a1ffc707ff
Comments and #ifdef GRAAL for recent changes to C++ code for calling nmethods directly.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9025
diff
changeset
|
951 #endif |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
952 |
| 0 | 953 // Interpreter stub for calling a native method. (asm interpreter) |
| 954 // This sets up a somewhat different looking stack for calling the | |
| 955 // native method than the typical interpreter frame setup. | |
| 956 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 957 // determine code generation flags | |
| 958 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 959 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
960 // rbx: Method* |
| 0 | 961 // r13: sender sp |
| 962 | |
| 963 address entry_point = __ pc(); | |
| 964 | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
changeset
|
965 const Address constMethod (rbx, Method::const_offset()); |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
966 const Address access_flags (rbx, Method::access_flags_offset()); |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
changeset
|
967 const Address size_of_parameters(rcx, ConstMethod:: |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
changeset
|
968 size_of_parameters_offset()); |
|
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
changeset
|
969 |
| 0 | 970 |
| 971 // get parameter size (always needed) | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
jiangli
parents:
7199
diff
changeset
|
972 __ movptr(rcx, constMethod); |
|
622
56aae7be60d4
6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents:
605
diff
changeset
|
973 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 974 |
| 975 // native calls don't need the stack size check since they have no | |
| 976 // expression stack and the arguments are already on the stack and | |
| 977 // we only add a handful of words to the stack | |
| 978 | |
|
6725
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|
979 // rbx: Method* |
| 0 | 980 // rcx: size of parameters |
| 981 // r13: sender sp | |
| 304 | 982 __ pop(rax); // get return address |
| 0 | 983 |
| 984 // for natives the size of locals is zero | |
| 985 | |
| 986 // compute beginning of parameters (r14) | |
| 304 | 987 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 988 |
| 989 // add 2 zero-initialized slots for native calls | |
| 990 // initialize result_handler slot | |
| 304 | 991 __ push((int) NULL_WORD); |
| 0 | 992 // slot for oop temp |
| 993 // (static native method holder mirror/jni oop result) | |
| 304 | 994 __ push((int) NULL_WORD); |
| 0 | 995 |
| 996 // initialize fixed part of activation frame | |
| 997 generate_fixed_frame(true); | |
| 998 | |
| 999 // make sure method is native & not abstract | |
| 1000 #ifdef ASSERT | |
| 1001 __ movl(rax, access_flags); | |
| 1002 { | |
| 1003 Label L; | |
| 1004 __ testl(rax, JVM_ACC_NATIVE); | |
| 1005 __ jcc(Assembler::notZero, L); | |
| 1006 __ stop("tried to execute non-native method as native"); | |
| 1007 __ bind(L); | |
| 1008 } | |
| 1009 { | |
| 1010 Label L; | |
| 1011 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1012 __ jcc(Assembler::zero, L); | |
| 1013 __ stop("tried to execute abstract method in interpreter"); | |
| 1014 __ bind(L); | |
| 1015 } | |
| 1016 #endif | |
| 1017 | |
| 1018 // Since at this point in the method invocation the exception handler | |
| 1019 // would try to exit the monitor of synchronized methods which hasn't | |
| 1020 // been entered yet, we set the thread local variable | |
| 1021 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 1022 // check this flag. | |
| 1023 | |
| 1024 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1025 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1026 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1027 | |
| 1028 // increment invocation count & check for overflow | |
| 1029 Label invocation_counter_overflow; | |
| 1030 if (inc_counter) { | |
| 1031 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 1032 } | |
| 1033 | |
| 1034 Label continue_after_compile; | |
| 1035 __ bind(continue_after_compile); | |
| 1036 | |
| 1037 bang_stack_shadow_pages(true); | |
| 1038 | |
| 1039 // reset the _do_not_unlock_if_synchronized flag | |
| 1040 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1041 | |
| 1042 // check for synchronized methods | |
| 1043 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1044 // so method is not locked if overflows. | |
| 1045 if (synchronized) { | |
| 1046 lock_method(); | |
| 1047 } else { | |
| 1048 // no synchronization necessary | |
| 1049 #ifdef ASSERT | |
| 1050 { | |
| 1051 Label L; | |
| 1052 __ movl(rax, access_flags); | |
| 1053 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1054 __ jcc(Assembler::zero, L); | |
| 1055 __ stop("method needs synchronization"); | |
| 1056 __ bind(L); | |
| 1057 } | |
| 1058 #endif | |
| 1059 } | |
| 1060 | |
| 1061 // start execution | |
| 1062 #ifdef ASSERT | |
| 1063 { | |
| 1064 Label L; | |
| 1065 const Address monitor_block_top(rbp, | |
| 1066 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1067 __ movptr(rax, monitor_block_top); |
| 1068 __ cmpptr(rax, rsp); | |
| 0 | 1069 __ jcc(Assembler::equal, L); |
| 1070 __ stop("broken stack frame setup in interpreter"); | |
| 1071 __ bind(L); | |
| 1072 } | |
| 1073 #endif | |
| 1074 | |
| 1075 // jvmti support | |
| 1076 __ notify_method_entry(); | |
| 1077 | |
| 1078 // work registers | |
| 1079 const Register method = rbx; | |
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1080 const Register t = r11; |
| 0 | 1081 |
| 1082 // allocate space for parameters | |
| 1083 __ get_method(method); | |
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1084 __ movptr(t, Address(method, Method::const_offset())); |
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1085 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
| 1506 | 1086 __ shll(t, Interpreter::logStackElementSize); |
| 0 | 1087 |
| 304 | 1088 __ subptr(rsp, t); |
| 1089 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
| 605 | 1090 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
| 0 | 1091 |
| 1092 // get signature handler | |
| 1093 { | |
| 1094 Label L; | |
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1095 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 304 | 1096 __ testptr(t, t); |
| 0 | 1097 __ jcc(Assembler::notZero, L); |
| 1098 __ call_VM(noreg, | |
| 1099 CAST_FROM_FN_PTR(address, | |
| 1100 InterpreterRuntime::prepare_native_call), | |
| 1101 method); | |
| 1102 __ get_method(method); | |
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1103 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 0 | 1104 __ bind(L); |
| 1105 } | |
| 1106 | |
| 1107 // call signature handler | |
| 1108 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
| 1109 "adjust this code"); | |
| 1110 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
| 1111 "adjust this code"); | |
| 1112 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
| 1113 "adjust this code"); | |
| 1114 | |
| 1115 // The generated handlers do not touch RBX (the method oop). | |
| 1116 // However, large signatures cannot be cached and are generated | |
| 1117 // each time here. The slow-path generator can do a GC on return, | |
| 1118 // so we must reload it after the call. | |
| 1119 __ call(t); | |
| 1120 __ get_method(method); // slow path can do a GC, reload RBX | |
| 1121 | |
| 1122 | |
| 1123 // result handler is in rax | |
| 1124 // set result handler | |
| 304 | 1125 __ movptr(Address(rbp, |
| 1126 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
| 1127 rax); | |
| 0 | 1128 |
| 1129 // pass mirror handle if static call | |
| 1130 { | |
| 1131 Label L; | |
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1132 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1133 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1134 __ testl(t, JVM_ACC_STATIC); |
| 1135 __ jcc(Assembler::zero, L); | |
| 1136 // get mirror | |
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1137 __ movptr(t, Address(method, Method::const_offset())); |
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1138 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1139 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 1140 __ movptr(t, Address(t, mirror_offset)); |
| 0 | 1141 // copy mirror into activation frame |
| 304 | 1142 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
| 0 | 1143 t); |
| 1144 // pass handle to mirror | |
| 304 | 1145 __ lea(c_rarg1, |
| 1146 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
| 0 | 1147 __ bind(L); |
| 1148 } | |
| 1149 | |
| 1150 // get native function entry point | |
| 1151 { | |
| 1152 Label L; | |
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1153 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1154 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
| 1155 __ movptr(rscratch2, unsatisfied.addr()); | |
| 304 | 1156 __ cmpptr(rax, rscratch2); |
| 0 | 1157 __ jcc(Assembler::notEqual, L); |
| 1158 __ call_VM(noreg, | |
| 1159 CAST_FROM_FN_PTR(address, | |
| 1160 InterpreterRuntime::prepare_native_call), | |
| 1161 method); | |
| 1162 __ get_method(method); | |
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1163 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1164 __ bind(L); |
| 1165 } | |
| 1166 | |
| 1167 // pass JNIEnv | |
| 304 | 1168 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
| 0 | 1169 |
| 1170 // It is enough that the pc() points into the right code | |
| 1171 // segment. It does not have to be the correct return pc. | |
| 1172 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
| 1173 | |
| 1174 // change thread state | |
| 1175 #ifdef ASSERT | |
| 1176 { | |
| 1177 Label L; | |
| 1178 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
| 1179 __ cmpl(t, _thread_in_Java); | |
| 1180 __ jcc(Assembler::equal, L); | |
| 1181 __ stop("Wrong thread state in native stub"); | |
| 1182 __ bind(L); | |
| 1183 } | |
| 1184 #endif | |
| 1185 | |
| 1186 // Change state to native | |
| 1187 | |
| 1188 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1189 _thread_in_native); | |
| 1190 | |
| 1191 // Call the native method. | |
| 1192 __ call(rax); | |
| 1193 // result potentially in rax or xmm0 | |
| 1194 | |
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1195 // Verify or restore cpu control state after JNI call |
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1196 __ restore_cpu_control_state_after_jni(); |
| 0 | 1197 |
| 1198 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
| 1199 // in order to extract the result of a method call. If the order of these | |
| 1200 // pushes change or anything else is added to the stack then the code in | |
| 1201 // interpreter_frame_result must also change. | |
| 1202 | |
| 1203 __ push(dtos); | |
| 1204 __ push(ltos); | |
| 1205 | |
| 1206 // change thread state | |
| 1207 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1208 _thread_in_native_trans); | |
| 1209 | |
| 1210 if (os::is_MP()) { | |
| 1211 if (UseMembar) { | |
| 1212 // Force this write out before the read below | |
| 1213 __ membar(Assembler::Membar_mask_bits( | |
| 1214 Assembler::LoadLoad | Assembler::LoadStore | | |
| 1215 Assembler::StoreLoad | Assembler::StoreStore)); | |
| 1216 } else { | |
| 1217 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1218 // We use the current thread pointer to calculate a thread specific | |
| 1219 // offset to write to within the page. This minimizes bus traffic | |
| 1220 // due to cache line collision. | |
| 1221 __ serialize_memory(r15_thread, rscratch2); | |
| 1222 } | |
| 1223 } | |
| 1224 | |
| 1225 // check for safepoint operation in progress and/or pending suspend requests | |
| 1226 { | |
| 1227 Label Continue; | |
| 1228 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 1229 SafepointSynchronize::_not_synchronized); | |
| 1230 | |
| 1231 Label L; | |
| 1232 __ jcc(Assembler::notEqual, L); | |
| 1233 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
| 1234 __ jcc(Assembler::equal, Continue); | |
| 1235 __ bind(L); | |
| 1236 | |
| 1237 // Don't use call_VM as it will see a possible pending exception | |
| 1238 // and forward it and never return here preventing us from | |
| 1239 // clearing _last_native_pc down below. Also can't use | |
| 1240 // call_VM_leaf either as it will check to see if r13 & r14 are | |
| 1241 // preserved and correspond to the bcp/locals pointers. So we do a | |
| 1242 // runtime call by hand. | |
| 1243 // | |
| 304 | 1244 __ mov(c_rarg0, r15_thread); |
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1245 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1246 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1247 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1248 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
| 304 | 1249 __ mov(rsp, r12); // restore sp |
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1250 __ reinit_heapbase(); |
| 0 | 1251 __ bind(Continue); |
| 1252 } | |
| 1253 | |
| 1254 // change thread state | |
| 1255 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
| 1256 | |
| 1257 // reset_last_Java_frame | |
| 1258 __ reset_last_Java_frame(true, true); | |
| 1259 | |
| 1260 // reset handle block | |
| 304 | 1261 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
| 1262 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); | |
| 0 | 1263 |
| 1264 // If result is an oop unbox and store it in frame where gc will see it | |
| 1265 // and result handler will pick it up | |
| 1266 | |
| 1267 { | |
| 1268 Label no_oop, store_result; | |
| 1269 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
| 304 | 1270 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
| 0 | 1271 __ jcc(Assembler::notEqual, no_oop); |
| 1272 // retrieve result | |
| 1273 __ pop(ltos); | |
| 304 | 1274 __ testptr(rax, rax); |
| 0 | 1275 __ jcc(Assembler::zero, store_result); |
| 304 | 1276 __ movptr(rax, Address(rax, 0)); |
| 0 | 1277 __ bind(store_result); |
| 304 | 1278 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
| 0 | 1279 // keep stack depth as expected by pushing oop which will eventually be discarde |
| 1280 __ push(ltos); | |
| 1281 __ bind(no_oop); | |
| 1282 } | |
| 1283 | |
| 1284 | |
| 1285 { | |
| 1286 Label no_reguard; | |
| 1287 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
| 1288 JavaThread::stack_guard_yellow_disabled); | |
| 1289 __ jcc(Assembler::notEqual, no_reguard); | |
| 1290 | |
| 304 | 1291 __ pusha(); // XXX only save smashed registers |
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1292 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1293 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1294 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1295 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
| 304 | 1296 __ mov(rsp, r12); // restore sp |
| 1297 __ popa(); // XXX only restore smashed registers | |
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1298 __ reinit_heapbase(); |
| 0 | 1299 |
| 1300 __ bind(no_reguard); | |
| 1301 } | |
| 1302 | |
| 1303 | |
| 1304 // The method register is junk from after the thread_in_native transition | |
| 1305 // until here. Also can't call_VM until the bcp has been | |
| 1306 // restored. Need bcp for throwing exception below so get it now. | |
| 1307 __ get_method(method); | |
| 1308 | |
| 1309 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
| 1310 // r13 == code_base() | |
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1311 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1312 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
| 0 | 1313 // handle exceptions (exception handling will handle unlocking!) |
| 1314 { | |
| 1315 Label L; | |
| 304 | 1316 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 1317 __ jcc(Assembler::zero, L); |
| 1318 // Note: At some point we may want to unify this with the code | |
| 1319 // used in call_VM_base(); i.e., we should use the | |
| 1320 // StubRoutines::forward_exception code. For now this doesn't work | |
| 1321 // here because the rsp is not correctly set at this point. | |
| 1322 __ MacroAssembler::call_VM(noreg, | |
| 1323 CAST_FROM_FN_PTR(address, | |
| 1324 InterpreterRuntime::throw_pending_exception)); | |
| 1325 __ should_not_reach_here(); | |
| 1326 __ bind(L); | |
| 1327 } | |
| 1328 | |
| 1329 // do unlocking if necessary | |
| 1330 { | |
| 1331 Label L; | |
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1332 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1333 __ testl(t, JVM_ACC_SYNCHRONIZED); |
| 1334 __ jcc(Assembler::zero, L); | |
| 1335 // the code below should be shared with interpreter macro | |
| 1336 // assembler implementation | |
| 1337 { | |
| 1338 Label unlock; | |
| 1339 // BasicObjectLock will be first in list, since this is a | |
| 1340 // synchronized method. However, need to check that the object | |
| 1341 // has not been unlocked by an explicit monitorexit bytecode. | |
| 1342 const Address monitor(rbp, | |
| 1343 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
| 1344 wordSize - sizeof(BasicObjectLock))); | |
| 1345 | |
| 1346 // monitor expect in c_rarg1 for slow unlock path | |
| 304 | 1347 __ lea(c_rarg1, monitor); // address of first monitor |
| 0 | 1348 |
| 304 | 1349 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 1350 __ testptr(t, t); | |
| 0 | 1351 __ jcc(Assembler::notZero, unlock); |
| 1352 | |
| 1353 // Entry already unlocked, need to throw exception | |
| 1354 __ MacroAssembler::call_VM(noreg, | |
| 1355 CAST_FROM_FN_PTR(address, | |
| 1356 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 1357 __ should_not_reach_here(); | |
| 1358 | |
| 1359 __ bind(unlock); | |
| 1360 __ unlock_object(c_rarg1); | |
| 1361 } | |
| 1362 __ bind(L); | |
| 1363 } | |
| 1364 | |
| 1365 // jvmti support | |
| 1366 // Note: This must happen _after_ handling/throwing any exceptions since | |
| 1367 // the exception handler code notifies the runtime of method exits | |
| 1368 // too. If this happens before, method entry/exit notifications are | |
| 1369 // not properly paired (was bug - gri 11/22/99). | |
| 1370 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1371 | |
| 1372 // restore potential result in edx:eax, call result handler to | |
| 1373 // restore potential result in ST0 & handle result | |
| 1374 | |
| 1375 __ pop(ltos); | |
| 1376 __ pop(dtos); | |
| 1377 | |
| 304 | 1378 __ movptr(t, Address(rbp, |
| 1379 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
| 0 | 1380 __ call(t); |
| 1381 | |
| 1382 // remove activation | |
| 304 | 1383 __ movptr(t, Address(rbp, |
| 1384 frame::interpreter_frame_sender_sp_offset * | |
| 1385 wordSize)); // get sender sp | |
| 0 | 1386 __ leave(); // remove frame anchor |
| 304 | 1387 __ pop(rdi); // get return address |
| 1388 __ mov(rsp, t); // set sp to sender sp | |
| 0 | 1389 __ jmp(rdi); |
| 1390 | |
| 1391 if (inc_counter) { | |
| 1392 // Handle overflow of counter and compile method | |
| 1393 __ bind(invocation_counter_overflow); | |
| 1394 generate_counter_overflow(&continue_after_compile); | |
| 1395 } | |
| 1396 | |
| 1397 return entry_point; | |
| 1398 } | |
| 1399 | |
| 1400 // | |
| 1401 // Generic interpreted method entry to (asm) interpreter | |
| 1402 // | |
| 1403 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1404 // determine code generation flags | |
| 1405 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1406 | |
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1407 // ebx: Method* |
| 0 | 1408 // r13: sender sp |
| 1409 address entry_point = __ pc(); | |
| 1410 | |
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1411 const Address constMethod(rbx, Method::const_offset()); |
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1412 const Address access_flags(rbx, Method::access_flags_offset()); |
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1413 const Address size_of_parameters(rdx, |
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1414 ConstMethod::size_of_parameters_offset()); |
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1415 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1416 |
| 0 | 1417 |
| 1418 // get parameter size (always needed) | |
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1419 __ movptr(rdx, constMethod); |
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1420 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1421 |
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1422 // rbx: Method* |
| 0 | 1423 // rcx: size of parameters |
| 1424 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
| 1425 | |
|
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1426 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
| 0 | 1427 __ subl(rdx, rcx); // rdx = no. of additional locals |
| 1428 | |
| 1429 // YYY | |
| 1430 // __ incrementl(rdx); | |
| 1431 // __ andl(rdx, -2); | |
| 1432 | |
| 1433 // see if we've got enough room on the stack for locals plus overhead. | |
| 1434 generate_stack_overflow_check(); | |
| 1435 | |
| 1436 // get return address | |
| 304 | 1437 __ pop(rax); |
| 0 | 1438 |
| 1439 // compute beginning of parameters (r14) | |
| 304 | 1440 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1441 |
| 1442 // rdx - # of additional locals | |
| 1443 // allocate space for locals | |
| 1444 // explicitly initialize locals | |
| 1445 { | |
| 1446 Label exit, loop; | |
| 1447 __ testl(rdx, rdx); | |
| 1448 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
| 1449 __ bind(loop); | |
| 304 | 1450 __ push((int) NULL_WORD); // initialize local variables |
| 0 | 1451 __ decrementl(rdx); // until everything initialized |
| 1452 __ jcc(Assembler::greater, loop); | |
| 1453 __ bind(exit); | |
| 1454 } | |
| 1455 | |
| 1456 // initialize fixed part of activation frame | |
| 1457 generate_fixed_frame(false); | |
| 1458 | |
| 1459 // make sure method is not native & not abstract | |
| 1460 #ifdef ASSERT | |
| 1461 __ movl(rax, access_flags); | |
| 1462 { | |
| 1463 Label L; | |
| 1464 __ testl(rax, JVM_ACC_NATIVE); | |
| 1465 __ jcc(Assembler::zero, L); | |
| 1466 __ stop("tried to execute native method as non-native"); | |
| 1467 __ bind(L); | |
| 1468 } | |
| 1469 { | |
| 1470 Label L; | |
| 1471 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1472 __ jcc(Assembler::zero, L); | |
| 1473 __ stop("tried to execute abstract method in interpreter"); | |
| 1474 __ bind(L); | |
| 1475 } | |
| 1476 #endif | |
| 1477 | |
| 1478 // Since at this point in the method invocation the exception | |
| 1479 // handler would try to exit the monitor of synchronized methods | |
| 1480 // which hasn't been entered yet, we set the thread local variable | |
| 1481 // _do_not_unlock_if_synchronized to true. The remove_activation | |
| 1482 // will check this flag. | |
| 1483 | |
| 1484 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1485 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1486 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1487 | |
| 1488 // increment invocation count & check for overflow | |
| 1489 Label invocation_counter_overflow; | |
| 1490 Label profile_method; | |
| 1491 Label profile_method_continue; | |
| 1492 if (inc_counter) { | |
| 1493 generate_counter_incr(&invocation_counter_overflow, | |
| 1494 &profile_method, | |
| 1495 &profile_method_continue); | |
| 1496 if (ProfileInterpreter) { | |
| 1497 __ bind(profile_method_continue); | |
| 1498 } | |
| 1499 } | |
| 1500 | |
| 1501 Label continue_after_compile; | |
| 1502 __ bind(continue_after_compile); | |
| 1503 | |
| 1504 // check for synchronized interpreted methods | |
| 1505 bang_stack_shadow_pages(false); | |
| 1506 | |
| 1507 // reset the _do_not_unlock_if_synchronized flag | |
| 1508 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1509 | |
| 1510 // check for synchronized methods | |
| 1511 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1512 // so method is not locked if overflows. | |
| 1513 if (synchronized) { | |
| 1514 // Allocate monitor and lock method | |
| 1515 lock_method(); | |
| 1516 } else { | |
| 1517 // no synchronization necessary | |
| 1518 #ifdef ASSERT | |
| 1519 { | |
| 1520 Label L; | |
| 1521 __ movl(rax, access_flags); | |
| 1522 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1523 __ jcc(Assembler::zero, L); | |
| 1524 __ stop("method needs synchronization"); | |
| 1525 __ bind(L); | |
| 1526 } | |
| 1527 #endif | |
| 1528 } | |
| 1529 | |
| 1530 // start execution | |
| 1531 #ifdef ASSERT | |
| 1532 { | |
| 1533 Label L; | |
| 1534 const Address monitor_block_top (rbp, | |
| 1535 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1536 __ movptr(rax, monitor_block_top); |
| 1537 __ cmpptr(rax, rsp); | |
| 0 | 1538 __ jcc(Assembler::equal, L); |
| 1539 __ stop("broken stack frame setup in interpreter"); | |
| 1540 __ bind(L); | |
| 1541 } | |
| 1542 #endif | |
| 1543 | |
| 1544 // jvmti support | |
| 1545 __ notify_method_entry(); | |
| 1546 | |
| 1547 __ dispatch_next(vtos); | |
| 1548 | |
| 1549 // invocation counter overflow | |
| 1550 if (inc_counter) { | |
| 1551 if (ProfileInterpreter) { | |
| 1552 // We have decided to profile this method in the interpreter | |
| 1553 __ bind(profile_method); | |
|
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1554 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
|
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1555 __ set_method_data_pointer_for_bcp(); |
|
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|
1556 __ get_method(rbx); |
| 0 | 1557 __ jmp(profile_method_continue); |
| 1558 } | |
| 1559 // Handle overflow of counter and compile method | |
| 1560 __ bind(invocation_counter_overflow); | |
| 1561 generate_counter_overflow(&continue_after_compile); | |
| 1562 } | |
| 1563 | |
| 1564 return entry_point; | |
| 1565 } | |
| 1566 | |
| 1567 // Entry points | |
| 1568 // | |
| 1569 // Here we generate the various kind of entries into the interpreter. | |
| 1570 // The two main entry type are generic bytecode methods and native | |
| 1571 // call method. These both come in synchronized and non-synchronized | |
| 1572 // versions but the frame layout they create is very similar. The | |
| 1573 // other method entry types are really just special purpose entries | |
| 1574 // that are really entry and interpretation all in one. These are for | |
| 1575 // trivial methods like accessor, empty, or special math methods. | |
| 1576 // | |
| 1577 // When control flow reaches any of the entry types for the interpreter | |
| 1578 // the following holds -> | |
| 1579 // | |
| 1580 // Arguments: | |
| 1581 // | |
|
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1582 // rbx: Method* |
| 0 | 1583 // |
| 1584 // Stack layout immediately at entry | |
| 1585 // | |
| 1586 // [ return address ] <--- rsp | |
| 1587 // [ parameter n ] | |
| 1588 // ... | |
| 1589 // [ parameter 1 ] | |
| 1590 // [ expression stack ] (caller's java expression stack) | |
| 1591 | |
| 1592 // Assuming that we don't go to one of the trivial specialized entries | |
| 1593 // the stack will look like below when we are ready to execute the | |
| 1594 // first bytecode (or call the native routine). The register usage | |
| 1595 // will be as the template based interpreter expects (see | |
| 1596 // interpreter_amd64.hpp). | |
| 1597 // | |
| 1598 // local variables follow incoming parameters immediately; i.e. | |
| 1599 // the return address is moved to the end of the locals). | |
| 1600 // | |
| 1601 // [ monitor entry ] <--- rsp | |
| 1602 // ... | |
| 1603 // [ monitor entry ] | |
| 1604 // [ expr. stack bottom ] | |
| 1605 // [ saved r13 ] | |
| 1606 // [ current r14 ] | |
|
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1607 // [ Method* ] |
| 0 | 1608 // [ saved ebp ] <--- rbp |
| 1609 // [ return address ] | |
| 1610 // [ local variable m ] | |
| 1611 // ... | |
| 1612 // [ local variable 1 ] | |
| 1613 // [ parameter n ] | |
| 1614 // ... | |
| 1615 // [ parameter 1 ] <--- r14 | |
| 1616 | |
| 1617 address AbstractInterpreterGenerator::generate_method_entry( | |
| 1618 AbstractInterpreter::MethodKind kind) { | |
| 1619 // determine code generation flags | |
| 1620 bool synchronized = false; | |
| 1621 address entry_point = NULL; | |
| 1622 | |
| 1623 switch (kind) { | |
| 1624 case Interpreter::zerolocals : break; | |
| 1625 case Interpreter::zerolocals_synchronized: synchronized = true; break; | |
|
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|
1626 #ifdef GRAAL |
|
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|
1627 case Interpreter::execute_compiled_method: entry_point = ((InterpreterGenerator*)this)->generate_execute_compiled_method_entry(); break; |
|
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|
1628 #endif |
|
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1629 case Interpreter::native : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); break; |
|
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1630 case Interpreter::native_synchronized : entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); break; |
|
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1631 case Interpreter::empty : entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); break; |
|
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1632 case Interpreter::accessor : entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); break; |
|
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1633 case Interpreter::abstract : entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); break; |
|
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|
1634 |
|
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1635 case Interpreter::java_lang_math_sin : // fall thru |
|
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1636 case Interpreter::java_lang_math_cos : // fall thru |
|
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1637 case Interpreter::java_lang_math_tan : // fall thru |
|
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1638 case Interpreter::java_lang_math_abs : // fall thru |
|
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1639 case Interpreter::java_lang_math_log : // fall thru |
|
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1640 case Interpreter::java_lang_math_log10 : // fall thru |
|
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1641 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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|
1642 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1643 case Interpreter::java_lang_math_exp : entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break; |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
1644 case Interpreter::java_lang_ref_reference_get |
|
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|
1645 : entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
|
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|
1646 default: |
|
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|
1647 fatal(err_msg("unexpected method kind: %d", kind)); |
|
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|
1648 break; |
| 0 | 1649 } |
| 1650 | |
| 1651 if (entry_point) { | |
| 1652 return entry_point; | |
| 1653 } | |
| 1654 | |
| 1655 return ((InterpreterGenerator*) this)-> | |
| 1656 generate_normal_entry(synchronized); | |
| 1657 } | |
| 1658 | |
|
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1659 // These should never be compiled since the interpreter will prefer |
|
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|
1660 // the compiled version to the intrinsic version. |
|
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|
1661 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
|
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|
1662 switch (method_kind(m)) { |
|
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|
1663 case Interpreter::java_lang_math_sin : // fall thru |
|
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|
1664 case Interpreter::java_lang_math_cos : // fall thru |
|
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|
1665 case Interpreter::java_lang_math_tan : // fall thru |
|
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|
1666 case Interpreter::java_lang_math_abs : // fall thru |
|
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|
1667 case Interpreter::java_lang_math_log : // fall thru |
|
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|
1668 case Interpreter::java_lang_math_log10 : // fall thru |
|
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|
1669 case Interpreter::java_lang_math_sqrt : // fall thru |
|
6759698e3140
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|
1670 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1671 case Interpreter::java_lang_math_exp : |
|
1174
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|
1672 return false; |
|
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|
1673 default: |
|
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|
1674 return true; |
|
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|
1675 } |
|
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|
1676 } |
|
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|
1677 |
| 0 | 1678 // How much stack a method activation needs in words. |
|
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|
1679 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1680 const int entry_size = frame::interpreter_frame_monitor_size(); |
| 1681 | |
| 1682 // total overhead size: entry_size + (saved rbp thru expr stack | |
| 1683 // bottom). be sure to change this if you add/subtract anything | |
| 1684 // to/from the overhead area | |
| 1685 const int overhead_size = | |
| 1686 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
| 1687 | |
| 1688 const int stub_code = frame::entry_frame_after_call_words; | |
|
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|
1689 const int method_stack = (method->max_locals() + method->max_stack()) * |
| 1506 | 1690 Interpreter::stackElementWords; |
| 0 | 1691 return (overhead_size + method_stack + stub_code); |
| 1692 } | |
| 1693 | |
|
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|
1694 int AbstractInterpreter::layout_activation(Method* method, |
| 0 | 1695 int tempcount, |
| 1696 int popframe_extra_args, | |
| 1697 int moncount, | |
|
3369
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|
1698 int caller_actual_parameters, |
| 0 | 1699 int callee_param_count, |
| 1700 int callee_locals, | |
| 1701 frame* caller, | |
| 1702 frame* interpreter_frame, | |
|
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8001
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|
1703 bool is_top_frame, |
|
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|
1704 bool is_bottom_frame) { |
| 0 | 1705 // Note: This calculation must exactly parallel the frame setup |
| 1706 // in AbstractInterpreterGenerator::generate_method_entry. | |
| 1707 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
| 1708 // The frame interpreter_frame, if not NULL, is guaranteed to be the | |
| 1709 // right size, as determined by a previous call to this method. | |
| 1710 // It is also guaranteed to be walkable even though it is in a skeletal state | |
| 1711 | |
| 1712 // fixed size of an interpreter frame: | |
| 1506 | 1713 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
| 0 | 1714 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
| 1506 | 1715 Interpreter::stackElementWords; |
| 0 | 1716 |
| 1717 int overhead = frame::sender_sp_offset - | |
| 1718 frame::interpreter_frame_initial_sp_offset; | |
| 1719 // Our locals were accounted for by the caller (or last_frame_adjust | |
| 1720 // on the transistion) Since the callee parameters already account | |
| 1721 // for the callee's params we only need to account for the extra | |
| 1722 // locals. | |
| 1723 int size = overhead + | |
| 1506 | 1724 (callee_locals - callee_param_count)*Interpreter::stackElementWords + |
| 0 | 1725 moncount * frame::interpreter_frame_monitor_size() + |
| 1506 | 1726 tempcount* Interpreter::stackElementWords + popframe_extra_args; |
| 0 | 1727 if (interpreter_frame != NULL) { |
| 1728 #ifdef ASSERT | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2245
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changeset
|
1729 if (!EnableInvokeDynamic) |
|
1135
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diff
changeset
|
1730 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
|
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diff
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|
1731 // Probably, since deoptimization doesn't work yet. |
|
e66fd840cb6b
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|
1732 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
| 0 | 1733 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
| 1734 #endif | |
| 1735 | |
| 1736 interpreter_frame->interpreter_frame_set_method(method); | |
| 1737 // NOTE the difference in using sender_sp and | |
| 1738 // interpreter_frame_sender_sp interpreter_frame_sender_sp is | |
| 1739 // the original sp of the caller (the unextended_sp) and | |
| 1740 // sender_sp is fp+16 XXX | |
| 1741 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
| 1742 | |
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1743 #ifdef ASSERT |
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1744 if (caller->is_interpreted_frame()) { |
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1745 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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1746 } |
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1747 #endif |
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1748 |
| 0 | 1749 interpreter_frame->interpreter_frame_set_locals(locals); |
| 1750 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
| 1751 BasicObjectLock* monbot = montop - moncount; | |
| 1752 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
| 1753 | |
| 1754 // Set last_sp | |
| 1755 intptr_t* esp = (intptr_t*) monbot - | |
| 1506 | 1756 tempcount*Interpreter::stackElementWords - |
| 0 | 1757 popframe_extra_args; |
| 1758 interpreter_frame->interpreter_frame_set_last_sp(esp); | |
| 1759 | |
| 1760 // All frames but the initial (oldest) interpreter frame we fill in have | |
| 1761 // a value for sender_sp that allows walking the stack but isn't | |
| 1762 // truly correct. Correct the value here. | |
| 1763 if (extra_locals != 0 && | |
| 1764 interpreter_frame->sender_sp() == | |
| 1765 interpreter_frame->interpreter_frame_sender_sp()) { | |
| 1766 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + | |
| 1767 extra_locals); | |
| 1768 } | |
| 1769 *interpreter_frame->interpreter_frame_cache_addr() = | |
| 1770 method->constants()->cache(); | |
| 1771 } | |
| 1772 return size; | |
| 1773 } | |
| 1774 | |
| 1775 //----------------------------------------------------------------------------- | |
| 1776 // Exceptions | |
| 1777 | |
| 1778 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1779 // Entry point in previous activation (i.e., if the caller was | |
| 1780 // interpreted) | |
| 1781 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1782 // Restore sp to interpreter_frame_last_sp even though we are going | |
| 1783 // to empty the expression stack for the exception processing. | |
| 304 | 1784 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 1785 // rax: exception |
| 1786 // rdx: return address/pc that threw exception | |
| 1787 __ restore_bcp(); // r13 points to call/send | |
| 1788 __ restore_locals(); | |
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1789 __ reinit_heapbase(); // restore r12 as heapbase. |
| 0 | 1790 // Entry point for exceptions thrown within interpreter code |
| 1791 Interpreter::_throw_exception_entry = __ pc(); | |
| 1792 // expression stack is undefined here | |
| 1793 // rax: exception | |
| 1794 // r13: exception bcp | |
| 1795 __ verify_oop(rax); | |
| 304 | 1796 __ mov(c_rarg1, rax); |
| 0 | 1797 |
| 1798 // expression stack must be empty before entering the VM in case of | |
| 1799 // an exception | |
| 1800 __ empty_expression_stack(); | |
| 1801 // find exception handler address and preserve exception oop | |
| 1802 __ call_VM(rdx, | |
| 1803 CAST_FROM_FN_PTR(address, | |
| 1804 InterpreterRuntime::exception_handler_for_exception), | |
| 1805 c_rarg1); | |
| 1806 // rax: exception handler entry point | |
| 1807 // rdx: preserved exception oop | |
| 1808 // r13: bcp for exception handler | |
| 1809 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
| 1810 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
| 1811 | |
| 1812 // If the exception is not handled in the current frame the frame is | |
| 1813 // removed and the exception is rethrown (i.e. exception | |
| 1814 // continuation is _rethrow_exception). | |
| 1815 // | |
| 1816 // Note: At this point the bci is still the bxi for the instruction | |
| 1817 // which caused the exception and the expression stack is | |
| 1818 // empty. Thus, for any VM calls at this point, GC will find a legal | |
| 1819 // oop map (with empty expression stack). | |
| 1820 | |
| 1821 // In current activation | |
| 1822 // tos: exception | |
| 1823 // esi: exception bcp | |
| 1824 | |
| 1825 // | |
| 1826 // JVMTI PopFrame support | |
| 1827 // | |
| 1828 | |
| 1829 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 1830 __ empty_expression_stack(); | |
| 1831 // Set the popframe_processing bit in pending_popframe_condition | |
| 1832 // indicating that we are currently handling popframe, so that | |
| 1833 // call_VMs that may happen later do not trigger new popframe | |
| 1834 // handling cycles. | |
| 1835 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
| 1836 __ orl(rdx, JavaThread::popframe_processing_bit); | |
| 1837 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
| 1838 | |
| 1839 { | |
| 1840 // Check to see whether we are returning to a deoptimized frame. | |
| 1841 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1842 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1843 // In this case, we can't call dispatch_next() after the frame is | |
| 1844 // popped, but instead must save the incoming arguments and restore | |
| 1845 // them after deoptimization has occurred. | |
| 1846 // | |
| 1847 // Note that we don't compare the return PC against the | |
| 1848 // deoptimization blob's unpack entry because of the presence of | |
| 1849 // adapter frames in C2. | |
| 1850 Label caller_not_deoptimized; | |
| 304 | 1851 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
| 0 | 1852 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1853 InterpreterRuntime::interpreter_contains), c_rarg1); | |
| 1854 __ testl(rax, rax); | |
| 1855 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
| 1856 | |
| 1857 // Compute size of arguments for saving when returning to | |
| 1858 // deoptimized caller | |
| 1859 __ get_method(rax); | |
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1860 __ movptr(rax, Address(rax, Method::const_offset())); |
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1861 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
| 0 | 1862 size_of_parameters_offset()))); |
| 1506 | 1863 __ shll(rax, Interpreter::logStackElementSize); |
| 0 | 1864 __ restore_locals(); // XXX do we need this? |
| 304 | 1865 __ subptr(r14, rax); |
| 1866 __ addptr(r14, wordSize); | |
| 0 | 1867 // Save these arguments |
| 1868 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
| 1869 Deoptimization:: | |
| 1870 popframe_preserve_args), | |
| 1871 r15_thread, rax, r14); | |
| 1872 | |
| 1873 __ remove_activation(vtos, rdx, | |
| 1874 /* throw_monitor_exception */ false, | |
| 1875 /* install_monitor_exception */ false, | |
| 1876 /* notify_jvmdi */ false); | |
| 1877 | |
| 1878 // Inform deoptimization that it is responsible for restoring | |
| 1879 // these arguments | |
| 1880 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1881 JavaThread::popframe_force_deopt_reexecution_bit); | |
| 1882 | |
| 1883 // Continue in deoptimization handler | |
| 1884 __ jmp(rdx); | |
| 1885 | |
| 1886 __ bind(caller_not_deoptimized); | |
| 1887 } | |
| 1888 | |
| 1889 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
| 1890 /* throw_monitor_exception */ false, | |
| 1891 /* install_monitor_exception */ false, | |
| 1892 /* notify_jvmdi */ false); | |
| 1893 | |
| 1894 // Finish with popframe handling | |
| 1895 // A previous I2C followed by a deoptimization might have moved the | |
| 1896 // outgoing arguments further up the stack. PopFrame expects the | |
| 1897 // mutations to those outgoing arguments to be preserved and other | |
| 1898 // constraints basically require this frame to look exactly as | |
| 1899 // though it had previously invoked an interpreted activation with | |
| 1900 // no space between the top of the expression stack (current | |
| 1901 // last_sp) and the top of stack. Rather than force deopt to | |
| 1902 // maintain this kind of invariant all the time we call a small | |
| 1903 // fixup routine to move the mutated arguments onto the top of our | |
| 1904 // expression stack if necessary. | |
| 304 | 1905 __ mov(c_rarg1, rsp); |
| 1906 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
| 0 | 1907 // PC must point into interpreter here |
| 1908 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
| 1909 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
| 1910 __ reset_last_Java_frame(true, true); | |
| 1911 // Restore the last_sp and null it out | |
| 304 | 1912 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 1913 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
| 0 | 1914 |
| 1915 __ restore_bcp(); // XXX do we need this? | |
| 1916 __ restore_locals(); // XXX do we need this? | |
| 1917 // The method data pointer was incremented already during | |
| 1918 // call profiling. We have to restore the mdp for the current bcp. | |
| 1919 if (ProfileInterpreter) { | |
| 1920 __ set_method_data_pointer_for_bcp(); | |
| 1921 } | |
| 1922 | |
| 1923 // Clear the popframe condition flag | |
| 1924 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1925 JavaThread::popframe_inactive); | |
| 1926 | |
| 1927 __ dispatch_next(vtos); | |
| 1928 // end of PopFrame support | |
| 1929 | |
| 1930 Interpreter::_remove_activation_entry = __ pc(); | |
| 1931 | |
| 1932 // preserve exception over this code sequence | |
| 1933 __ pop_ptr(rax); | |
| 304 | 1934 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
| 0 | 1935 // remove the activation (without doing throws on illegalMonitorExceptions) |
| 1936 __ remove_activation(vtos, rdx, false, true, false); | |
| 1937 // restore exception | |
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1938 __ get_vm_result(rax, r15_thread); |
| 0 | 1939 |
| 1940 // In between activations - previous activation type unknown yet | |
| 1941 // compute continuation point - the continuation point expects the | |
| 1942 // following registers set up: | |
| 1943 // | |
| 1944 // rax: exception | |
| 1945 // rdx: return address/pc that threw exception | |
| 1946 // rsp: expression stack of caller | |
| 1947 // rbp: ebp of caller | |
| 304 | 1948 __ push(rax); // save exception |
| 1949 __ push(rdx); // save return address | |
| 0 | 1950 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1951 SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 1952 r15_thread, rdx); |
| 304 | 1953 __ mov(rbx, rax); // save exception handler |
| 1954 __ pop(rdx); // restore return address | |
| 1955 __ pop(rax); // restore exception | |
| 0 | 1956 // Note that an "issuing PC" is actually the next PC after the call |
| 1957 __ jmp(rbx); // jump to exception | |
| 1958 // handler of caller | |
| 1959 } | |
| 1960 | |
| 1961 | |
| 1962 // | |
| 1963 // JVMTI ForceEarlyReturn support | |
| 1964 // | |
| 1965 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 1966 address entry = __ pc(); | |
| 1967 | |
| 1968 __ restore_bcp(); | |
| 1969 __ restore_locals(); | |
| 1970 __ empty_expression_stack(); | |
| 1971 __ load_earlyret_value(state); | |
| 1972 | |
| 304 | 1973 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 1974 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
| 1975 | |
| 1976 // Clear the earlyret state | |
| 1977 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
| 1978 | |
| 1979 __ remove_activation(state, rsi, | |
| 1980 false, /* throw_monitor_exception */ | |
| 1981 false, /* install_monitor_exception */ | |
| 1982 true); /* notify_jvmdi */ | |
| 1983 __ jmp(rsi); | |
| 1984 | |
| 1985 return entry; | |
| 1986 } // end of ForceEarlyReturn support | |
| 1987 | |
| 1988 | |
| 1989 //----------------------------------------------------------------------------- | |
| 1990 // Helper for vtos entry point generation | |
| 1991 | |
| 1992 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
| 1993 address& bep, | |
| 1994 address& cep, | |
| 1995 address& sep, | |
| 1996 address& aep, | |
| 1997 address& iep, | |
| 1998 address& lep, | |
| 1999 address& fep, | |
| 2000 address& dep, | |
| 2001 address& vep) { | |
| 2002 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 2003 Label L; | |
| 2004 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
| 2005 fep = __ pc(); __ push_f(); __ jmp(L); | |
| 2006 dep = __ pc(); __ push_d(); __ jmp(L); | |
| 2007 lep = __ pc(); __ push_l(); __ jmp(L); | |
| 2008 bep = cep = sep = | |
| 2009 iep = __ pc(); __ push_i(); | |
| 2010 vep = __ pc(); | |
| 2011 __ bind(L); | |
| 2012 generate_and_dispatch(t); | |
| 2013 } | |
| 2014 | |
| 2015 | |
| 2016 //----------------------------------------------------------------------------- | |
| 2017 // Generation of individual instructions | |
| 2018 | |
| 2019 // helpers for generate_and_dispatch | |
| 2020 | |
| 2021 | |
| 2022 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 2023 : TemplateInterpreterGenerator(code) { | |
| 2024 generate_all(); // down here so it can be "virtual" | |
| 2025 } | |
| 2026 | |
| 2027 //----------------------------------------------------------------------------- | |
| 2028 | |
| 2029 // Non-product code | |
| 2030 #ifndef PRODUCT | |
| 2031 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 2032 address entry = __ pc(); | |
| 2033 | |
| 2034 __ push(state); | |
| 304 | 2035 __ push(c_rarg0); |
| 2036 __ push(c_rarg1); | |
| 2037 __ push(c_rarg2); | |
| 2038 __ push(c_rarg3); | |
| 2039 __ mov(c_rarg2, rax); // Pass itos | |
| 0 | 2040 #ifdef _WIN64 |
| 2041 __ movflt(xmm3, xmm0); // Pass ftos | |
| 2042 #endif | |
| 2043 __ call_VM(noreg, | |
| 2044 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
| 2045 c_rarg1, c_rarg2, c_rarg3); | |
| 304 | 2046 __ pop(c_rarg3); |
| 2047 __ pop(c_rarg2); | |
| 2048 __ pop(c_rarg1); | |
| 2049 __ pop(c_rarg0); | |
| 0 | 2050 __ pop(state); |
| 2051 __ ret(0); // return from result handler | |
| 2052 | |
| 2053 return entry; | |
| 2054 } | |
| 2055 | |
| 2056 void TemplateInterpreterGenerator::count_bytecode() { | |
| 2057 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
| 2058 } | |
| 2059 | |
| 2060 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 2061 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
| 2062 } | |
| 2063 | |
| 2064 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 2065 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
| 2066 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
| 2067 __ orl(rbx, | |
| 2068 ((int) t->bytecode()) << | |
| 2069 BytecodePairHistogram::log2_number_of_codes); | |
| 2070 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
| 2071 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
| 2072 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
| 2073 } | |
| 2074 | |
| 2075 | |
| 2076 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2077 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2078 // The run-time runtime saves the right registers, depending on | |
| 2079 // the tosca in-state for the given template. | |
| 2080 | |
| 2081 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
| 2082 "entry must have been generated"); | |
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2083 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 2084 __ andptr(rsp, -16); // align stack as required by ABI |
| 0 | 2085 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
| 304 | 2086 __ mov(rsp, r12); // restore sp |
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2087 __ reinit_heapbase(); |
| 0 | 2088 } |
| 2089 | |
| 2090 | |
| 2091 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 2092 Label L; | |
| 2093 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
| 2094 StopInterpreterAt); | |
| 2095 __ jcc(Assembler::notEqual, L); | |
| 2096 __ int3(); | |
| 2097 __ bind(L); | |
| 2098 } | |
| 2099 #endif // !PRODUCT | |
| 304 | 2100 #endif // ! CC_INTERP |