Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_64.cpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 52b4284cb496 |
| children | be896a1983c0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/deoptimization.hpp" | |
| 40 #include "runtime/frame.inline.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 42 #include "runtime/stubRoutines.hpp" | |
| 43 #include "runtime/synchronizer.hpp" | |
| 44 #include "runtime/timer.hpp" | |
| 45 #include "runtime/vframeArray.hpp" | |
| 46 #include "utilities/debug.hpp" | |
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47 #include "utilities/macros.hpp" |
| 0 | 48 |
| 49 #define __ _masm-> | |
| 50 | |
| 304 | 51 #ifndef CC_INTERP |
| 52 | |
| 0 | 53 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
| 54 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
| 55 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
| 56 | |
| 57 //----------------------------------------------------------------------------- | |
| 58 | |
| 59 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 60 address entry = __ pc(); | |
| 61 | |
| 62 #ifdef ASSERT | |
| 63 { | |
| 64 Label L; | |
| 304 | 65 __ lea(rax, Address(rbp, |
| 66 frame::interpreter_frame_monitor_block_top_offset * | |
| 67 wordSize)); | |
| 68 __ cmpptr(rax, rsp); // rax = maximal rsp for current rbp (stack | |
| 69 // grows negative) | |
| 0 | 70 __ jcc(Assembler::aboveEqual, L); // check if frame is complete |
| 71 __ stop ("interpreter frame not set up"); | |
| 72 __ bind(L); | |
| 73 } | |
| 74 #endif // ASSERT | |
| 75 // Restore bcp under the assumption that the current frame is still | |
| 76 // interpreted | |
| 77 __ restore_bcp(); | |
| 78 | |
| 79 // expression stack must be empty before entering the VM if an | |
| 80 // exception happened | |
| 81 __ empty_expression_stack(); | |
| 82 // throw exception | |
| 83 __ call_VM(noreg, | |
| 84 CAST_FROM_FN_PTR(address, | |
| 85 InterpreterRuntime::throw_StackOverflowError)); | |
| 86 return entry; | |
| 87 } | |
| 88 | |
| 89 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( | |
| 90 const char* name) { | |
| 91 address entry = __ pc(); | |
| 92 // expression stack must be empty before entering the VM if an | |
| 93 // exception happened | |
| 94 __ empty_expression_stack(); | |
| 95 // setup parameters | |
| 96 // ??? convention: expect aberrant index in register ebx | |
| 97 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 98 __ call_VM(noreg, | |
| 99 CAST_FROM_FN_PTR(address, | |
| 100 InterpreterRuntime:: | |
| 101 throw_ArrayIndexOutOfBoundsException), | |
| 102 c_rarg1, rbx); | |
| 103 return entry; | |
| 104 } | |
| 105 | |
| 106 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 107 address entry = __ pc(); | |
| 108 | |
| 109 // object is at TOS | |
| 304 | 110 __ pop(c_rarg1); |
| 0 | 111 |
| 112 // expression stack must be empty before entering the VM if an | |
| 113 // exception happened | |
| 114 __ empty_expression_stack(); | |
| 115 | |
| 116 __ call_VM(noreg, | |
| 117 CAST_FROM_FN_PTR(address, | |
| 118 InterpreterRuntime:: | |
| 119 throw_ClassCastException), | |
| 120 c_rarg1); | |
| 121 return entry; | |
| 122 } | |
| 123 | |
| 124 address TemplateInterpreterGenerator::generate_exception_handler_common( | |
| 125 const char* name, const char* message, bool pass_oop) { | |
| 126 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 127 address entry = __ pc(); | |
| 128 if (pass_oop) { | |
| 129 // object is at TOS | |
| 304 | 130 __ pop(c_rarg2); |
| 0 | 131 } |
| 132 // expression stack must be empty before entering the VM if an | |
| 133 // exception happened | |
| 134 __ empty_expression_stack(); | |
| 135 // setup parameters | |
| 136 __ lea(c_rarg1, ExternalAddress((address)name)); | |
| 137 if (pass_oop) { | |
| 138 __ call_VM(rax, CAST_FROM_FN_PTR(address, | |
| 139 InterpreterRuntime:: | |
| 140 create_klass_exception), | |
| 141 c_rarg1, c_rarg2); | |
| 142 } else { | |
| 143 // kind of lame ExternalAddress can't take NULL because | |
| 144 // external_word_Relocation will assert. | |
| 145 if (message != NULL) { | |
| 146 __ lea(c_rarg2, ExternalAddress((address)message)); | |
| 147 } else { | |
| 148 __ movptr(c_rarg2, NULL_WORD); | |
| 149 } | |
| 150 __ call_VM(rax, | |
| 151 CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), | |
| 152 c_rarg1, c_rarg2); | |
| 153 } | |
| 154 // throw exception | |
| 155 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 156 return entry; | |
| 157 } | |
| 158 | |
| 159 | |
| 160 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 161 address entry = __ pc(); | |
| 162 // NULL last_sp until next java call | |
| 304 | 163 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 164 __ dispatch_next(state); |
| 165 return entry; | |
| 166 } | |
| 167 | |
| 168 | |
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169 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, size_t index_size) { |
| 0 | 170 address entry = __ pc(); |
| 171 | |
| 172 // Restore stack bottom in case i2c adjusted stack | |
| 304 | 173 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 0 | 174 // and NULL it as marker that esp is now tos until next java call |
| 304 | 175 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 176 |
| 177 __ restore_bcp(); | |
| 178 __ restore_locals(); | |
| 304 | 179 |
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180 if (state == atos) { |
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181 Register mdp = rbx; |
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182 Register tmp = rcx; |
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183 __ profile_return_type(mdp, rax, tmp); |
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184 } |
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185 |
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186 const Register cache = rbx; |
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187 const Register index = rcx; |
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188 __ get_cache_and_index_at_bcp(cache, index, 1, index_size); |
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189 |
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190 const Register flags = cache; |
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191 __ movl(flags, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
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192 __ andl(flags, ConstantPoolCacheEntry::parameter_size_mask); |
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193 __ lea(rsp, Address(rsp, flags, Interpreter::stackElementScale())); |
| 0 | 194 __ dispatch_next(state, step); |
| 1108 | 195 |
| 0 | 196 return entry; |
| 197 } | |
| 198 | |
| 199 | |
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200 address InterpreterGenerator::generate_deopt_entry_for(TosState state, |
| 0 | 201 int step) { |
| 202 address entry = __ pc(); | |
| 203 // NULL last_sp until next java call | |
| 304 | 204 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 205 __ restore_bcp(); |
| 206 __ restore_locals(); | |
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207 #ifdef GRAAL |
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208 // Check if we need to take lock at entry of synchronized method. |
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209 { |
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210 Label L; |
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211 __ cmpb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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212 __ jcc(Assembler::zero, L); |
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213 // Clear flag. |
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214 __ movb(Address(r15_thread, Thread::pending_monitorenter_offset()), 0); |
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215 // Satisfy calling convention for lock_method(). |
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216 __ get_method(rbx); |
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217 // Take lock. |
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218 lock_method(); |
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219 __ bind(L); |
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220 } |
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221 #endif |
| 0 | 222 // handle exceptions |
| 223 { | |
| 224 Label L; | |
| 304 | 225 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 226 __ jcc(Assembler::zero, L); |
| 227 __ call_VM(noreg, | |
| 228 CAST_FROM_FN_PTR(address, | |
| 229 InterpreterRuntime::throw_pending_exception)); | |
| 230 __ should_not_reach_here(); | |
| 231 __ bind(L); | |
| 232 } | |
| 233 __ dispatch_next(state, step); | |
| 234 return entry; | |
| 235 } | |
| 236 | |
| 237 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 238 int i = 0; | |
| 239 switch (type) { | |
| 240 case T_BOOLEAN: i = 0; break; | |
| 241 case T_CHAR : i = 1; break; | |
| 242 case T_BYTE : i = 2; break; | |
| 243 case T_SHORT : i = 3; break; | |
| 244 case T_INT : i = 4; break; | |
| 245 case T_LONG : i = 5; break; | |
| 246 case T_VOID : i = 6; break; | |
| 247 case T_FLOAT : i = 7; break; | |
| 248 case T_DOUBLE : i = 8; break; | |
| 249 case T_OBJECT : i = 9; break; | |
| 250 case T_ARRAY : i = 9; break; | |
| 251 default : ShouldNotReachHere(); | |
| 252 } | |
| 253 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, | |
| 254 "index out of bounds"); | |
| 255 return i; | |
| 256 } | |
| 257 | |
| 258 | |
| 259 address TemplateInterpreterGenerator::generate_result_handler_for( | |
| 260 BasicType type) { | |
| 261 address entry = __ pc(); | |
| 262 switch (type) { | |
| 263 case T_BOOLEAN: __ c2bool(rax); break; | |
| 264 case T_CHAR : __ movzwl(rax, rax); break; | |
| 265 case T_BYTE : __ sign_extend_byte(rax); break; | |
| 266 case T_SHORT : __ sign_extend_short(rax); break; | |
| 267 case T_INT : /* nothing to do */ break; | |
| 268 case T_LONG : /* nothing to do */ break; | |
| 269 case T_VOID : /* nothing to do */ break; | |
| 270 case T_FLOAT : /* nothing to do */ break; | |
| 271 case T_DOUBLE : /* nothing to do */ break; | |
| 272 case T_OBJECT : | |
| 273 // retrieve result from frame | |
| 304 | 274 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
| 0 | 275 // and verify it |
| 276 __ verify_oop(rax); | |
| 277 break; | |
| 278 default : ShouldNotReachHere(); | |
| 279 } | |
| 280 __ ret(0); // return from result handler | |
| 281 return entry; | |
| 282 } | |
| 283 | |
| 284 address TemplateInterpreterGenerator::generate_safept_entry_for( | |
| 285 TosState state, | |
| 286 address runtime_entry) { | |
| 287 address entry = __ pc(); | |
| 288 __ push(state); | |
| 289 __ call_VM(noreg, runtime_entry); | |
| 290 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
| 291 return entry; | |
| 292 } | |
| 293 | |
| 294 | |
| 295 | |
| 296 // Helpers for commoning out cases in the various type of method entries. | |
| 297 // | |
| 298 | |
| 299 | |
| 300 // increment invocation count & check for overflow | |
| 301 // | |
| 302 // Note: checking for negative value instead of overflow | |
| 303 // so we have a 'sticky' overflow test | |
| 304 // | |
| 305 // rbx: method | |
| 306 // ecx: invocation counter | |
| 307 // | |
| 308 void InterpreterGenerator::generate_counter_incr( | |
| 309 Label* overflow, | |
| 310 Label* profile_method, | |
| 311 Label* profile_method_continue) { | |
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312 Label done; |
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313 // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not. |
| 1783 | 314 if (TieredCompilation) { |
| 315 int increment = InvocationCounter::count_increment; | |
| 316 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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317 Label no_mdo; |
| 1783 | 318 if (ProfileInterpreter) { |
| 319 // Are we profiling? | |
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320 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
| 1783 | 321 __ testptr(rax, rax); |
| 322 __ jccb(Assembler::zero, no_mdo); | |
| 323 // Increment counter in the MDO | |
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324 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 325 in_bytes(InvocationCounter::counter_offset())); |
| 326 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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327 __ jmp(done); |
| 1783 | 328 } |
| 329 __ bind(no_mdo); | |
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330 // Increment counter in MethodCounters |
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331 const Address invocation_counter(rax, |
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332 MethodCounters::invocation_counter_offset() + |
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333 InvocationCounter::counter_offset()); |
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334 __ get_method_counters(rbx, rax, done); |
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335 __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, |
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336 false, Assembler::zero, overflow); |
| 1783 | 337 __ bind(done); |
| 338 } else { | |
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339 const Address backedge_counter(rax, |
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340 MethodCounters::backedge_counter_offset() + |
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341 InvocationCounter::counter_offset()); |
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342 const Address invocation_counter(rax, |
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343 MethodCounters::invocation_counter_offset() + |
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344 InvocationCounter::counter_offset()); |
| 0 | 345 |
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346 __ get_method_counters(rbx, rax, done); |
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347 |
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348 if (ProfileInterpreter) { |
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349 __ incrementl(Address(rax, |
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350 MethodCounters::interpreter_invocation_counter_offset())); |
| 1783 | 351 } |
| 352 // Update standard invocation counters | |
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353 __ movl(rcx, invocation_counter); |
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354 __ incrementl(rcx, InvocationCounter::count_increment); |
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355 __ movl(invocation_counter, rcx); // save invocation count |
| 0 | 356 |
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357 __ movl(rax, backedge_counter); // load backedge counter |
| 1783 | 358 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
| 0 | 359 |
| 1783 | 360 __ addl(rcx, rax); // add both counters |
| 0 | 361 |
| 1783 | 362 // profile_method is non-null only for interpreted method so |
| 363 // profile_method != NULL == !native_call | |
| 364 | |
| 365 if (ProfileInterpreter && profile_method != NULL) { | |
| 366 // Test to see if we should create a method data oop | |
| 367 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
| 368 __ jcc(Assembler::less, *profile_method_continue); | |
| 0 | 369 |
| 1783 | 370 // if no method data exists, go to profile_method |
| 371 __ test_method_data_pointer(rax, *profile_method); | |
| 372 } | |
| 373 | |
| 374 __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); | |
| 375 __ jcc(Assembler::aboveEqual, *overflow); | |
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376 __ bind(done); |
| 0 | 377 } |
| 378 } | |
| 379 | |
| 380 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
| 381 | |
| 382 // Asm interpreter on entry | |
| 383 // r14 - locals | |
| 384 // r13 - bcp | |
| 385 // rbx - method | |
| 386 // edx - cpool --- DOES NOT APPEAR TO BE TRUE | |
| 387 // rbp - interpreter frame | |
| 388 | |
| 389 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
| 390 // Everything as it was on entry | |
| 391 // rdx is not restored. Doesn't appear to really be set. | |
| 392 | |
| 393 // InterpreterRuntime::frequency_counter_overflow takes two | |
| 394 // arguments, the first (thread) is passed by call_VM, the second | |
| 395 // indicates if the counter overflow occurs at a backwards branch | |
| 396 // (NULL bcp). We pass zero for it. The call returns the address | |
| 397 // of the verified entry point for the method or NULL if the | |
| 398 // compilation did not complete (either went background or bailed | |
| 399 // out). | |
| 400 __ movl(c_rarg1, 0); | |
| 401 __ call_VM(noreg, | |
| 402 CAST_FROM_FN_PTR(address, | |
| 403 InterpreterRuntime::frequency_counter_overflow), | |
| 404 c_rarg1); | |
| 405 | |
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406 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
| 0 | 407 // Preserve invariant that r13/r14 contain bcp/locals of sender frame |
| 408 // and jump to the interpreted entry. | |
| 409 __ jmp(*do_continue, relocInfo::none); | |
| 410 } | |
| 411 | |
| 412 // See if we've got enough room on the stack for locals plus overhead. | |
| 413 // The expression stack grows down incrementally, so the normal guard | |
| 414 // page mechanism will work for that. | |
| 415 // | |
| 416 // NOTE: Since the additional locals are also always pushed (wasn't | |
| 417 // obvious in generate_method_entry) so the guard should work for them | |
| 418 // too. | |
| 419 // | |
| 420 // Args: | |
| 421 // rdx: number of additional locals this frame needs (what we must check) | |
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422 // rbx: Method* |
| 0 | 423 // |
| 424 // Kills: | |
| 425 // rax | |
| 426 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
| 427 | |
| 428 // monitor entry size: see picture of stack set | |
| 429 // (generate_method_entry) and frame_amd64.hpp | |
| 430 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 431 | |
| 432 // total overhead size: entry_size + (saved rbp through expr stack | |
| 433 // bottom). be sure to change this if you add/subtract anything | |
| 434 // to/from the overhead area | |
| 435 const int overhead_size = | |
| 436 -(frame::interpreter_frame_initial_sp_offset * wordSize) + entry_size; | |
| 437 | |
| 438 const int page_size = os::vm_page_size(); | |
| 439 | |
| 440 Label after_frame_check; | |
| 441 | |
| 442 // see if the frame is greater than one page in size. If so, | |
| 443 // then we need to verify there is enough stack space remaining | |
| 444 // for the additional locals. | |
| 1506 | 445 __ cmpl(rdx, (page_size - overhead_size) / Interpreter::stackElementSize); |
| 0 | 446 __ jcc(Assembler::belowEqual, after_frame_check); |
| 447 | |
| 448 // compute rsp as if this were going to be the last frame on | |
| 449 // the stack before the red zone | |
| 450 | |
| 451 const Address stack_base(r15_thread, Thread::stack_base_offset()); | |
| 452 const Address stack_size(r15_thread, Thread::stack_size_offset()); | |
| 453 | |
| 454 // locals + overhead, in bytes | |
| 304 | 455 __ mov(rax, rdx); |
| 1506 | 456 __ shlptr(rax, Interpreter::logStackElementSize); // 2 slots per parameter. |
| 304 | 457 __ addptr(rax, overhead_size); |
| 0 | 458 |
| 459 #ifdef ASSERT | |
| 460 Label stack_base_okay, stack_size_okay; | |
| 461 // verify that thread stack base is non-zero | |
| 304 | 462 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
| 0 | 463 __ jcc(Assembler::notEqual, stack_base_okay); |
| 464 __ stop("stack base is zero"); | |
| 465 __ bind(stack_base_okay); | |
| 466 // verify that thread stack size is non-zero | |
| 304 | 467 __ cmpptr(stack_size, 0); |
| 0 | 468 __ jcc(Assembler::notEqual, stack_size_okay); |
| 469 __ stop("stack size is zero"); | |
| 470 __ bind(stack_size_okay); | |
| 471 #endif | |
| 472 | |
| 473 // Add stack base to locals and subtract stack size | |
| 304 | 474 __ addptr(rax, stack_base); |
| 475 __ subptr(rax, stack_size); | |
| 0 | 476 |
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477 // Use the maximum number of pages we might bang. |
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478 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : |
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479 (StackRedPages+StackYellowPages); |
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480 |
| 0 | 481 // add in the red and yellow zone sizes |
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482 __ addptr(rax, max_pages * page_size); |
| 0 | 483 |
| 484 // check against the current stack bottom | |
| 304 | 485 __ cmpptr(rsp, rax); |
| 0 | 486 __ jcc(Assembler::above, after_frame_check); |
| 487 | |
| 4743 | 488 // Restore sender's sp as SP. This is necessary if the sender's |
| 489 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
| 490 // and safer anyway in case of JSR292 adaptations. | |
| 491 | |
| 492 __ pop(rax); // return address must be moved if SP is changed | |
| 493 __ mov(rsp, r13); | |
| 494 __ push(rax); | |
| 495 | |
| 496 // Note: the restored frame is not necessarily interpreted. | |
| 497 // Use the shared runtime version of the StackOverflowError. | |
| 498 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 499 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
| 0 | 500 |
| 501 // all done with frame size check | |
| 502 __ bind(after_frame_check); | |
| 503 } | |
| 504 | |
| 505 // Allocate monitor and lock method (asm interpreter) | |
| 506 // | |
| 507 // Args: | |
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508 // rbx: Method* |
| 0 | 509 // r14: locals |
| 510 // | |
| 511 // Kills: | |
| 512 // rax | |
| 513 // c_rarg0, c_rarg1, c_rarg2, c_rarg3, ...(param regs) | |
| 514 // rscratch1, rscratch2 (scratch regs) | |
| 515 void InterpreterGenerator::lock_method(void) { | |
| 516 // synchronize method | |
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517 const Address access_flags(rbx, Method::access_flags_offset()); |
| 0 | 518 const Address monitor_block_top( |
| 519 rbp, | |
| 520 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 521 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 522 | |
| 523 #ifdef ASSERT | |
| 524 { | |
| 525 Label L; | |
| 526 __ movl(rax, access_flags); | |
| 527 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 528 __ jcc(Assembler::notZero, L); | |
| 529 __ stop("method doesn't need synchronization"); | |
| 530 __ bind(L); | |
| 531 } | |
| 532 #endif // ASSERT | |
| 533 | |
| 534 // get synchronization object | |
| 535 { | |
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536 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 537 Label done; |
| 538 __ movl(rax, access_flags); | |
| 539 __ testl(rax, JVM_ACC_STATIC); | |
| 540 // get receiver (assume this is frequent case) | |
| 304 | 541 __ movptr(rax, Address(r14, Interpreter::local_offset_in_bytes(0))); |
| 0 | 542 __ jcc(Assembler::zero, done); |
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543 __ movptr(rax, Address(rbx, Method::const_offset())); |
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544 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
| 304 | 545 __ movptr(rax, Address(rax, |
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546 ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 547 __ movptr(rax, Address(rax, mirror_offset)); |
| 0 | 548 |
| 549 #ifdef ASSERT | |
| 550 { | |
| 551 Label L; | |
| 304 | 552 __ testptr(rax, rax); |
| 0 | 553 __ jcc(Assembler::notZero, L); |
| 554 __ stop("synchronization object is NULL"); | |
| 555 __ bind(L); | |
| 556 } | |
| 557 #endif // ASSERT | |
| 558 | |
| 559 __ bind(done); | |
| 560 } | |
| 561 | |
| 562 // add space for monitor & lock | |
| 304 | 563 __ subptr(rsp, entry_size); // add space for a monitor entry |
| 564 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
| 0 | 565 // store object |
| 304 | 566 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 567 __ movptr(c_rarg1, rsp); // object address | |
| 0 | 568 __ lock_object(c_rarg1); |
| 569 } | |
| 570 | |
| 571 // Generate a fixed interpreter frame. This is identical setup for | |
| 572 // interpreted methods and for native methods hence the shared code. | |
| 573 // | |
| 574 // Args: | |
| 575 // rax: return address | |
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576 // rbx: Method* |
| 0 | 577 // r14: pointer to locals |
| 578 // r13: sender sp | |
| 579 // rdx: cp cache | |
| 580 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 581 // initialize fixed part of activation frame | |
| 304 | 582 __ push(rax); // save return address |
| 0 | 583 __ enter(); // save old & set new rbp |
| 304 | 584 __ push(r13); // set sender sp |
| 585 __ push((int)NULL_WORD); // leave last_sp as null | |
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586 __ movptr(r13, Address(rbx, Method::const_offset())); // get ConstMethod* |
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587 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
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588 __ push(rbx); // save Method* |
| 0 | 589 if (ProfileInterpreter) { |
| 590 Label method_data_continue; | |
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591 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 592 __ testptr(rdx, rdx); |
| 0 | 593 __ jcc(Assembler::zero, method_data_continue); |
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594 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
| 0 | 595 __ bind(method_data_continue); |
| 304 | 596 __ push(rdx); // set the mdp (method data pointer) |
| 0 | 597 } else { |
| 304 | 598 __ push(0); |
| 0 | 599 } |
| 600 | |
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601 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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602 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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603 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
| 304 | 604 __ push(rdx); // set constant pool cache |
| 605 __ push(r14); // set locals pointer | |
| 0 | 606 if (native_call) { |
| 304 | 607 __ push(0); // no bcp |
| 0 | 608 } else { |
| 304 | 609 __ push(r13); // set bcp |
| 0 | 610 } |
| 304 | 611 __ push(0); // reserve word for pointer to expression stack bottom |
| 612 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
| 0 | 613 } |
| 614 | |
| 615 // End of helpers | |
| 616 | |
| 304 | 617 // Various method entries |
| 618 //------------------------------------------------------------------------------------------------------------------------ | |
| 619 // | |
| 620 // | |
| 621 | |
| 622 // Call an accessor method (assuming it is resolved, otherwise drop | |
| 623 // into vanilla (slow path) entry | |
| 624 address InterpreterGenerator::generate_accessor_entry(void) { | |
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625 // rbx: Method* |
| 304 | 626 |
| 627 // r13: senderSP must preserver for slow path, set SP to it on fast path | |
| 628 | |
| 629 address entry_point = __ pc(); | |
| 630 Label xreturn_path; | |
| 631 | |
| 632 // do fastpath for resolved accessor methods | |
| 633 if (UseFastAccessorMethods) { | |
| 634 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites | |
| 635 // thereof; parameter size = 1 | |
| 636 // Note: We can only use this code if the getfield has been resolved | |
| 637 // and if we don't have a null-pointer exception => check for | |
| 638 // these conditions first and use slow path if necessary. | |
| 639 Label slow_path; | |
| 640 // If we need a safepoint check, generate full interpreter entry. | |
| 641 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 642 SafepointSynchronize::_not_synchronized); | |
| 643 | |
| 644 __ jcc(Assembler::notEqual, slow_path); | |
| 645 // rbx: method | |
| 646 __ movptr(rax, Address(rsp, wordSize)); | |
| 647 | |
| 648 // check if local 0 != NULL and read field | |
| 649 __ testptr(rax, rax); | |
| 650 __ jcc(Assembler::zero, slow_path); | |
| 651 | |
| 652 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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653 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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654 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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655 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 656 // Shift codes right to get the index on the right. |
| 657 // The bytecode fetched looks like <index><0xb4><0x2a> | |
| 658 __ shrl(rdx, 2 * BitsPerByte); | |
| 659 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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660 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
| 304 | 661 |
| 662 // rax: local 0 | |
| 663 // rbx: method | |
| 664 // rdx: constant pool cache index | |
| 665 // rdi: constant pool cache | |
| 666 | |
| 667 // check if getfield has been resolved and read constant pool cache entry | |
| 668 // check the validity of the cache entry by testing whether _indices field | |
| 669 // contains Bytecode::_getfield in b1 byte. | |
| 670 assert(in_words(ConstantPoolCacheEntry::size()) == 4, | |
| 671 "adjust shift below"); | |
| 672 __ movl(rcx, | |
| 673 Address(rdi, | |
| 674 rdx, | |
| 675 Address::times_8, | |
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676 ConstantPoolCache::base_offset() + |
| 304 | 677 ConstantPoolCacheEntry::indices_offset())); |
| 678 __ shrl(rcx, 2 * BitsPerByte); | |
| 679 __ andl(rcx, 0xFF); | |
| 680 __ cmpl(rcx, Bytecodes::_getfield); | |
| 681 __ jcc(Assembler::notEqual, slow_path); | |
| 682 | |
| 683 // Note: constant pool entry is not valid before bytecode is resolved | |
| 684 __ movptr(rcx, | |
| 685 Address(rdi, | |
| 686 rdx, | |
| 687 Address::times_8, | |
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688 ConstantPoolCache::base_offset() + |
| 304 | 689 ConstantPoolCacheEntry::f2_offset())); |
| 690 // edx: flags | |
| 691 __ movl(rdx, | |
| 692 Address(rdi, | |
| 693 rdx, | |
| 694 Address::times_8, | |
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695 ConstantPoolCache::base_offset() + |
| 304 | 696 ConstantPoolCacheEntry::flags_offset())); |
| 697 | |
| 698 Label notObj, notInt, notByte, notShort; | |
| 699 const Address field_address(rax, rcx, Address::times_1); | |
| 700 | |
| 701 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 702 // because they are different sizes. | |
| 703 // Use the type from the constant pool cache | |
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|
704 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
|
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705 // Make sure we don't need to mask edx after the above shift |
|
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|
706 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 707 |
| 708 __ cmpl(rdx, atos); | |
| 709 __ jcc(Assembler::notEqual, notObj); | |
| 710 // atos | |
| 711 __ load_heap_oop(rax, field_address); | |
| 712 __ jmp(xreturn_path); | |
| 713 | |
| 714 __ bind(notObj); | |
| 715 __ cmpl(rdx, itos); | |
| 716 __ jcc(Assembler::notEqual, notInt); | |
| 717 // itos | |
| 718 __ movl(rax, field_address); | |
| 719 __ jmp(xreturn_path); | |
| 720 | |
| 721 __ bind(notInt); | |
| 722 __ cmpl(rdx, btos); | |
| 723 __ jcc(Assembler::notEqual, notByte); | |
| 724 // btos | |
| 725 __ load_signed_byte(rax, field_address); | |
| 726 __ jmp(xreturn_path); | |
| 727 | |
| 728 __ bind(notByte); | |
| 729 __ cmpl(rdx, stos); | |
| 730 __ jcc(Assembler::notEqual, notShort); | |
| 731 // stos | |
|
622
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|
732 __ load_signed_short(rax, field_address); |
| 304 | 733 __ jmp(xreturn_path); |
| 734 | |
| 735 __ bind(notShort); | |
| 736 #ifdef ASSERT | |
| 737 Label okay; | |
| 738 __ cmpl(rdx, ctos); | |
| 739 __ jcc(Assembler::equal, okay); | |
| 740 __ stop("what type is this?"); | |
| 741 __ bind(okay); | |
| 742 #endif | |
| 743 // ctos | |
|
622
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|
744 __ load_unsigned_short(rax, field_address); |
| 304 | 745 |
| 746 __ bind(xreturn_path); | |
| 747 | |
| 748 // _ireturn/_areturn | |
| 749 __ pop(rdi); | |
| 750 __ mov(rsp, r13); | |
| 751 __ jmp(rdi); | |
| 752 __ ret(0); | |
| 753 | |
| 754 // generate a vanilla interpreter entry as the slow path | |
| 755 __ bind(slow_path); | |
| 756 (void) generate_normal_entry(false); | |
| 757 } else { | |
| 758 (void) generate_normal_entry(false); | |
| 759 } | |
| 760 | |
| 761 return entry_point; | |
| 762 } | |
| 763 | |
|
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|
764 // Method entry for java.lang.ref.Reference.get. |
|
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|
765 address InterpreterGenerator::generate_Reference_get_entry(void) { |
|
8001
db9981fd3124
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jprovino
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|
766 #if INCLUDE_ALL_GCS |
|
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767 // Code: _aload_0, _getfield, _areturn |
|
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|
768 // parameter size = 1 |
|
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|
769 // |
|
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|
770 // The code that gets generated by this routine is split into 2 parts: |
|
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|
771 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
772 // 2. The slow path - which is an expansion of the regular method entry. |
|
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|
773 // |
|
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|
774 // Notes:- |
|
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775 // * In the G1 code we do not check whether we need to block for |
|
e1162778c1c8
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|
776 // a safepoint. If G1 is enabled then we must execute the specialized |
|
e1162778c1c8
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|
777 // code for Reference.get (except when the Reference object is null) |
|
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778 // so that we can log the value in the referent field with an SATB |
|
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|
779 // update buffer. |
|
e1162778c1c8
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|
780 // If the code for the getfield template is modified so that the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
781 // G1 pre-barrier code is executed when the current method is |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
782 // Reference.get() then going through the normal method entry |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
783 // will be fine. |
|
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|
784 // * The G1 code can, however, check the receiver object (the instance |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
785 // of java.lang.Reference) and jump to the slow path if null. If the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
786 // Reference object is null then we obviously cannot fetch the referent |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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787 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
788 // regular method entry code to generate the NPE. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
789 // |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
790 // This code is based on generate_accessor_enty. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
791 // |
|
6725
da91efe96a93
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|
792 // rbx: Method* |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
793 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
794 // r13: senderSP must preserve for slow path, set SP to it on fast path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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795 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
796 address entry = __ pc(); |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
797 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
798 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
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|
799 guarantee(referent_offset > 0, "referent offset not initialized"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
800 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
801 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
802 Label slow_path; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
803 // rbx: method |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
804 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
805 // Check if local 0 != NULL |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
806 // If the receiver is null then it is OK to jump to the slow path. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
807 __ movptr(rax, Address(rsp, wordSize)); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
808 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
809 __ testptr(rax, rax); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
810 __ jcc(Assembler::zero, slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
811 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
812 // rax: local 0 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
813 // rbx: method (but can be used as scratch now) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
814 // rdx: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
815 // rdi: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
816 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
817 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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changeset
|
818 // the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
819 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
820 // Load the value of the referent field. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
821 const Address field_address(rax, referent_offset); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
822 __ load_heap_oop(rax, field_address); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
823 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
824 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
825 // the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
826 __ g1_write_barrier_pre(noreg /* obj */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
827 rax /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
828 r15_thread /* thread */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
829 rbx /* tmp */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
830 true /* tosca_live */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
831 true /* expand_call */); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
832 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
833 // _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
834 __ pop(rdi); // get return address |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
835 __ mov(rsp, r13); // set sp to sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
836 __ jmp(rdi); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
837 __ ret(0); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
838 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
839 // generate a vanilla interpreter entry as the slow path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
840 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
841 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
842 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
843 return entry; |
|
e1162778c1c8
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johnc
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|
844 } |
|
8001
db9981fd3124
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jprovino
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7402
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changeset
|
845 #endif // INCLUDE_ALL_GCS |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
846 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
847 // If G1 is not enabled then attempt to go through the accessor entry point |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
848 // Reference.get is an accessor |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
849 return generate_accessor_entry(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
850 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
851 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
852 /** |
|
b800986664f4
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changeset
|
853 * Method entry for static native methods: |
|
b800986664f4
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drchase
parents:
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changeset
|
854 * int java.util.zip.CRC32.update(int crc, int b) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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|
855 */ |
|
b800986664f4
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drchase
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diff
changeset
|
856 address InterpreterGenerator::generate_CRC32_update_entry() { |
|
b800986664f4
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changeset
|
857 if (UseCRC32Intrinsics) { |
|
b800986664f4
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diff
changeset
|
858 address entry = __ pc(); |
|
b800986664f4
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drchase
parents:
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diff
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|
859 |
|
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|
860 // rbx,: Method* |
|
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|
861 // r13: senderSP must preserved for slow path, set SP to it on fast path |
|
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862 // c_rarg0: scratch (rdi on non-Win64, rcx on Win64) |
|
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|
863 // c_rarg1: scratch (rsi on non-Win64, rdx on Win64) |
|
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864 |
|
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|
865 Label slow_path; |
|
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866 // If we need a safepoint check, generate full interpreter entry. |
|
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867 ExternalAddress state(SafepointSynchronize::address_of_state()); |
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868 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
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869 SafepointSynchronize::_not_synchronized); |
|
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870 __ jcc(Assembler::notEqual, slow_path); |
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|
871 |
|
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|
872 // We don't generate local frame and don't align stack because |
|
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873 // we call stub code and there is no safepoint on this path. |
|
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874 |
|
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|
875 // Load parameters |
|
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|
876 const Register crc = rax; // crc |
|
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|
877 const Register val = c_rarg0; // source java byte value |
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878 const Register tbl = c_rarg1; // scratch |
|
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879 |
|
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880 // Arguments are reversed on java expression stack |
|
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881 __ movl(val, Address(rsp, wordSize)); // byte value |
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882 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
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883 |
|
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884 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
|
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885 __ notl(crc); // ~crc |
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886 __ update_byte_crc32(crc, val, tbl); |
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887 __ notl(crc); // ~crc |
|
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|
888 // result in rax |
|
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|
889 |
|
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|
890 // _areturn |
|
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891 __ pop(rdi); // get return address |
|
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892 __ mov(rsp, r13); // set sp to sender sp |
|
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893 __ jmp(rdi); |
|
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894 |
|
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895 // generate a vanilla native entry as the slow path |
|
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896 __ bind(slow_path); |
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897 |
|
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898 (void) generate_native_entry(false); |
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899 |
|
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900 return entry; |
|
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901 } |
|
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902 return generate_native_entry(false); |
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903 } |
|
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|
904 |
|
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|
905 /** |
|
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906 * Method entry for static native methods: |
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907 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
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908 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
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909 */ |
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910 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
|
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911 if (UseCRC32Intrinsics) { |
|
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912 address entry = __ pc(); |
|
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913 |
|
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|
914 // rbx,: Method* |
|
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915 // r13: senderSP must preserved for slow path, set SP to it on fast path |
|
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916 |
|
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917 Label slow_path; |
|
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918 // If we need a safepoint check, generate full interpreter entry. |
|
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919 ExternalAddress state(SafepointSynchronize::address_of_state()); |
|
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920 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
|
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921 SafepointSynchronize::_not_synchronized); |
|
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922 __ jcc(Assembler::notEqual, slow_path); |
|
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|
923 |
|
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|
924 // We don't generate local frame and don't align stack because |
|
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|
925 // we call stub code and there is no safepoint on this path. |
|
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|
926 |
|
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|
927 // Load parameters |
|
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|
928 const Register crc = c_rarg0; // crc |
|
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|
929 const Register buf = c_rarg1; // source java byte array address |
|
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|
930 const Register len = c_rarg2; // length |
|
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|
931 const Register off = len; // offset (never overlaps with 'len') |
|
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|
932 |
|
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|
933 // Arguments are reversed on java expression stack |
|
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|
934 // Calculate address of start element |
|
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|
935 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
|
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936 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
|
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|
937 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
|
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|
938 __ addq(buf, off); // + offset |
|
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|
939 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
|
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|
940 } else { |
|
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|
941 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
|
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|
942 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
|
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|
943 __ movl2ptr(off, Address(rsp, 2*wordSize)); // offset |
|
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|
944 __ addq(buf, off); // + offset |
|
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|
945 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
|
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|
946 } |
|
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changeset
|
947 // Can now load 'len' since we're finished with 'off' |
|
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|
948 __ movl(len, Address(rsp, wordSize)); // Length |
|
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|
949 |
|
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|
950 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
|
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|
951 // result in rax |
|
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|
952 |
|
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|
953 // _areturn |
|
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|
954 __ pop(rdi); // get return address |
|
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|
955 __ mov(rsp, r13); // set sp to sender sp |
|
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|
956 __ jmp(rdi); |
|
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|
957 |
|
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|
958 // generate a vanilla native entry as the slow path |
|
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|
959 __ bind(slow_path); |
|
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|
960 |
|
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|
961 (void) generate_native_entry(false); |
|
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|
962 |
|
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|
963 return entry; |
|
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|
964 } |
|
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|
965 return generate_native_entry(false); |
|
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|
966 } |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
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|
967 |
| 0 | 968 // Interpreter stub for calling a native method. (asm interpreter) |
| 969 // This sets up a somewhat different looking stack for calling the | |
| 970 // native method than the typical interpreter frame setup. | |
| 971 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 972 // determine code generation flags | |
| 973 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 974 | |
|
6725
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changeset
|
975 // rbx: Method* |
| 0 | 976 // r13: sender sp |
| 977 | |
| 978 address entry_point = __ pc(); | |
| 979 | |
|
7402
fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
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changeset
|
980 const Address constMethod (rbx, Method::const_offset()); |
|
6725
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981 const Address access_flags (rbx, Method::access_flags_offset()); |
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982 const Address size_of_parameters(rcx, ConstMethod:: |
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983 size_of_parameters_offset()); |
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984 |
| 0 | 985 |
| 986 // get parameter size (always needed) | |
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987 __ movptr(rcx, constMethod); |
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988 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 989 |
| 990 // native calls don't need the stack size check since they have no | |
| 991 // expression stack and the arguments are already on the stack and | |
| 992 // we only add a handful of words to the stack | |
| 993 | |
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994 // rbx: Method* |
| 0 | 995 // rcx: size of parameters |
| 996 // r13: sender sp | |
| 304 | 997 __ pop(rax); // get return address |
| 0 | 998 |
| 999 // for natives the size of locals is zero | |
| 1000 | |
| 1001 // compute beginning of parameters (r14) | |
| 304 | 1002 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1003 |
| 1004 // add 2 zero-initialized slots for native calls | |
| 1005 // initialize result_handler slot | |
| 304 | 1006 __ push((int) NULL_WORD); |
| 0 | 1007 // slot for oop temp |
| 1008 // (static native method holder mirror/jni oop result) | |
| 304 | 1009 __ push((int) NULL_WORD); |
| 0 | 1010 |
| 1011 // initialize fixed part of activation frame | |
| 1012 generate_fixed_frame(true); | |
| 1013 | |
| 1014 // make sure method is native & not abstract | |
| 1015 #ifdef ASSERT | |
| 1016 __ movl(rax, access_flags); | |
| 1017 { | |
| 1018 Label L; | |
| 1019 __ testl(rax, JVM_ACC_NATIVE); | |
| 1020 __ jcc(Assembler::notZero, L); | |
| 1021 __ stop("tried to execute non-native method as native"); | |
| 1022 __ bind(L); | |
| 1023 } | |
| 1024 { | |
| 1025 Label L; | |
| 1026 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1027 __ jcc(Assembler::zero, L); | |
| 1028 __ stop("tried to execute abstract method in interpreter"); | |
| 1029 __ bind(L); | |
| 1030 } | |
| 1031 #endif | |
| 1032 | |
| 1033 // Since at this point in the method invocation the exception handler | |
| 1034 // would try to exit the monitor of synchronized methods which hasn't | |
| 1035 // been entered yet, we set the thread local variable | |
| 1036 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 1037 // check this flag. | |
| 1038 | |
| 1039 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1040 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1041 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1042 | |
| 1043 // increment invocation count & check for overflow | |
| 1044 Label invocation_counter_overflow; | |
| 1045 if (inc_counter) { | |
| 1046 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 1047 } | |
| 1048 | |
| 1049 Label continue_after_compile; | |
| 1050 __ bind(continue_after_compile); | |
| 1051 | |
| 1052 bang_stack_shadow_pages(true); | |
| 1053 | |
| 1054 // reset the _do_not_unlock_if_synchronized flag | |
| 1055 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1056 | |
| 1057 // check for synchronized methods | |
| 1058 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1059 // so method is not locked if overflows. | |
| 1060 if (synchronized) { | |
| 1061 lock_method(); | |
| 1062 } else { | |
| 1063 // no synchronization necessary | |
| 1064 #ifdef ASSERT | |
| 1065 { | |
| 1066 Label L; | |
| 1067 __ movl(rax, access_flags); | |
| 1068 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1069 __ jcc(Assembler::zero, L); | |
| 1070 __ stop("method needs synchronization"); | |
| 1071 __ bind(L); | |
| 1072 } | |
| 1073 #endif | |
| 1074 } | |
| 1075 | |
| 1076 // start execution | |
| 1077 #ifdef ASSERT | |
| 1078 { | |
| 1079 Label L; | |
| 1080 const Address monitor_block_top(rbp, | |
| 1081 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1082 __ movptr(rax, monitor_block_top); |
| 1083 __ cmpptr(rax, rsp); | |
| 0 | 1084 __ jcc(Assembler::equal, L); |
| 1085 __ stop("broken stack frame setup in interpreter"); | |
| 1086 __ bind(L); | |
| 1087 } | |
| 1088 #endif | |
| 1089 | |
| 1090 // jvmti support | |
| 1091 __ notify_method_entry(); | |
| 1092 | |
| 1093 // work registers | |
| 1094 const Register method = rbx; | |
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1095 const Register t = r11; |
| 0 | 1096 |
| 1097 // allocate space for parameters | |
| 1098 __ get_method(method); | |
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1099 __ movptr(t, Address(method, Method::const_offset())); |
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1100 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
| 1506 | 1101 __ shll(t, Interpreter::logStackElementSize); |
| 0 | 1102 |
| 304 | 1103 __ subptr(rsp, t); |
| 1104 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
| 605 | 1105 __ andptr(rsp, -16); // must be 16 byte boundary (see amd64 ABI) |
| 0 | 1106 |
| 1107 // get signature handler | |
| 1108 { | |
| 1109 Label L; | |
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1110 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 304 | 1111 __ testptr(t, t); |
| 0 | 1112 __ jcc(Assembler::notZero, L); |
| 1113 __ call_VM(noreg, | |
| 1114 CAST_FROM_FN_PTR(address, | |
| 1115 InterpreterRuntime::prepare_native_call), | |
| 1116 method); | |
| 1117 __ get_method(method); | |
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1118 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 0 | 1119 __ bind(L); |
| 1120 } | |
| 1121 | |
| 1122 // call signature handler | |
| 1123 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == r14, | |
| 1124 "adjust this code"); | |
| 1125 assert(InterpreterRuntime::SignatureHandlerGenerator::to() == rsp, | |
| 1126 "adjust this code"); | |
| 1127 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == rscratch1, | |
| 1128 "adjust this code"); | |
| 1129 | |
| 1130 // The generated handlers do not touch RBX (the method oop). | |
| 1131 // However, large signatures cannot be cached and are generated | |
| 1132 // each time here. The slow-path generator can do a GC on return, | |
| 1133 // so we must reload it after the call. | |
| 1134 __ call(t); | |
| 1135 __ get_method(method); // slow path can do a GC, reload RBX | |
| 1136 | |
| 1137 | |
| 1138 // result handler is in rax | |
| 1139 // set result handler | |
| 304 | 1140 __ movptr(Address(rbp, |
| 1141 (frame::interpreter_frame_result_handler_offset) * wordSize), | |
| 1142 rax); | |
| 0 | 1143 |
| 1144 // pass mirror handle if static call | |
| 1145 { | |
| 1146 Label L; | |
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1147 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1148 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1149 __ testl(t, JVM_ACC_STATIC); |
| 1150 __ jcc(Assembler::zero, L); | |
| 1151 // get mirror | |
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1152 __ movptr(t, Address(method, Method::const_offset())); |
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1153 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1154 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 1155 __ movptr(t, Address(t, mirror_offset)); |
| 0 | 1156 // copy mirror into activation frame |
| 304 | 1157 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), |
| 0 | 1158 t); |
| 1159 // pass handle to mirror | |
| 304 | 1160 __ lea(c_rarg1, |
| 1161 Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); | |
| 0 | 1162 __ bind(L); |
| 1163 } | |
| 1164 | |
| 1165 // get native function entry point | |
| 1166 { | |
| 1167 Label L; | |
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1168 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1169 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
| 1170 __ movptr(rscratch2, unsatisfied.addr()); | |
| 304 | 1171 __ cmpptr(rax, rscratch2); |
| 0 | 1172 __ jcc(Assembler::notEqual, L); |
| 1173 __ call_VM(noreg, | |
| 1174 CAST_FROM_FN_PTR(address, | |
| 1175 InterpreterRuntime::prepare_native_call), | |
| 1176 method); | |
| 1177 __ get_method(method); | |
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1178 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1179 __ bind(L); |
| 1180 } | |
| 1181 | |
| 1182 // pass JNIEnv | |
| 304 | 1183 __ lea(c_rarg0, Address(r15_thread, JavaThread::jni_environment_offset())); |
| 0 | 1184 |
| 1185 // It is enough that the pc() points into the right code | |
| 1186 // segment. It does not have to be the correct return pc. | |
| 1187 __ set_last_Java_frame(rsp, rbp, (address) __ pc()); | |
| 1188 | |
| 1189 // change thread state | |
| 1190 #ifdef ASSERT | |
| 1191 { | |
| 1192 Label L; | |
| 1193 __ movl(t, Address(r15_thread, JavaThread::thread_state_offset())); | |
| 1194 __ cmpl(t, _thread_in_Java); | |
| 1195 __ jcc(Assembler::equal, L); | |
| 1196 __ stop("Wrong thread state in native stub"); | |
| 1197 __ bind(L); | |
| 1198 } | |
| 1199 #endif | |
| 1200 | |
| 1201 // Change state to native | |
| 1202 | |
| 1203 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1204 _thread_in_native); | |
| 1205 | |
| 1206 // Call the native method. | |
| 1207 __ call(rax); | |
| 1208 // result potentially in rax or xmm0 | |
| 1209 | |
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1210 // Verify or restore cpu control state after JNI call |
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1211 __ restore_cpu_control_state_after_jni(); |
| 0 | 1212 |
| 1213 // NOTE: The order of these pushes is known to frame::interpreter_frame_result | |
| 1214 // in order to extract the result of a method call. If the order of these | |
| 1215 // pushes change or anything else is added to the stack then the code in | |
| 1216 // interpreter_frame_result must also change. | |
| 1217 | |
| 1218 __ push(dtos); | |
| 1219 __ push(ltos); | |
| 1220 | |
| 1221 // change thread state | |
| 1222 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), | |
| 1223 _thread_in_native_trans); | |
| 1224 | |
| 1225 if (os::is_MP()) { | |
| 1226 if (UseMembar) { | |
| 1227 // Force this write out before the read below | |
| 1228 __ membar(Assembler::Membar_mask_bits( | |
| 1229 Assembler::LoadLoad | Assembler::LoadStore | | |
| 1230 Assembler::StoreLoad | Assembler::StoreStore)); | |
| 1231 } else { | |
| 1232 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1233 // We use the current thread pointer to calculate a thread specific | |
| 1234 // offset to write to within the page. This minimizes bus traffic | |
| 1235 // due to cache line collision. | |
| 1236 __ serialize_memory(r15_thread, rscratch2); | |
| 1237 } | |
| 1238 } | |
| 1239 | |
| 1240 // check for safepoint operation in progress and/or pending suspend requests | |
| 1241 { | |
| 1242 Label Continue; | |
| 1243 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 1244 SafepointSynchronize::_not_synchronized); | |
| 1245 | |
| 1246 Label L; | |
| 1247 __ jcc(Assembler::notEqual, L); | |
| 1248 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
| 1249 __ jcc(Assembler::equal, Continue); | |
| 1250 __ bind(L); | |
| 1251 | |
| 1252 // Don't use call_VM as it will see a possible pending exception | |
| 1253 // and forward it and never return here preventing us from | |
| 1254 // clearing _last_native_pc down below. Also can't use | |
| 1255 // call_VM_leaf either as it will check to see if r13 & r14 are | |
| 1256 // preserved and correspond to the bcp/locals pointers. So we do a | |
| 1257 // runtime call by hand. | |
| 1258 // | |
| 304 | 1259 __ mov(c_rarg0, r15_thread); |
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1260 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1261 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1262 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1263 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
| 304 | 1264 __ mov(rsp, r12); // restore sp |
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1265 __ reinit_heapbase(); |
| 0 | 1266 __ bind(Continue); |
| 1267 } | |
| 1268 | |
| 1269 // change thread state | |
| 1270 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
| 1271 | |
| 1272 // reset_last_Java_frame | |
| 1273 __ reset_last_Java_frame(true, true); | |
| 1274 | |
| 1275 // reset handle block | |
| 304 | 1276 __ movptr(t, Address(r15_thread, JavaThread::active_handles_offset())); |
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1277 __ movl(Address(t, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); |
| 0 | 1278 |
| 1279 // If result is an oop unbox and store it in frame where gc will see it | |
| 1280 // and result handler will pick it up | |
| 1281 | |
| 1282 { | |
| 1283 Label no_oop, store_result; | |
| 1284 __ lea(t, ExternalAddress(AbstractInterpreter::result_handler(T_OBJECT))); | |
| 304 | 1285 __ cmpptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
| 0 | 1286 __ jcc(Assembler::notEqual, no_oop); |
| 1287 // retrieve result | |
| 1288 __ pop(ltos); | |
| 304 | 1289 __ testptr(rax, rax); |
| 0 | 1290 __ jcc(Assembler::zero, store_result); |
| 304 | 1291 __ movptr(rax, Address(rax, 0)); |
| 0 | 1292 __ bind(store_result); |
| 304 | 1293 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize), rax); |
| 0 | 1294 // keep stack depth as expected by pushing oop which will eventually be discarde |
| 1295 __ push(ltos); | |
| 1296 __ bind(no_oop); | |
| 1297 } | |
| 1298 | |
| 1299 | |
| 1300 { | |
| 1301 Label no_reguard; | |
| 1302 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), | |
| 1303 JavaThread::stack_guard_yellow_disabled); | |
| 1304 __ jcc(Assembler::notEqual, no_reguard); | |
| 1305 | |
| 304 | 1306 __ pusha(); // XXX only save smashed registers |
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1307 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 1308 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
| 1309 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1310 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
| 304 | 1311 __ mov(rsp, r12); // restore sp |
| 1312 __ popa(); // XXX only restore smashed registers | |
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1313 __ reinit_heapbase(); |
| 0 | 1314 |
| 1315 __ bind(no_reguard); | |
| 1316 } | |
| 1317 | |
| 1318 | |
| 1319 // The method register is junk from after the thread_in_native transition | |
| 1320 // until here. Also can't call_VM until the bcp has been | |
| 1321 // restored. Need bcp for throwing exception below so get it now. | |
| 1322 __ get_method(method); | |
| 1323 | |
| 1324 // restore r13 to have legal interpreter frame, i.e., bci == 0 <=> | |
| 1325 // r13 == code_base() | |
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1326 __ movptr(r13, Address(method, Method::const_offset())); // get ConstMethod* |
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1327 __ lea(r13, Address(r13, ConstMethod::codes_offset())); // get codebase |
| 0 | 1328 // handle exceptions (exception handling will handle unlocking!) |
| 1329 { | |
| 1330 Label L; | |
| 304 | 1331 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD); |
| 0 | 1332 __ jcc(Assembler::zero, L); |
| 1333 // Note: At some point we may want to unify this with the code | |
| 1334 // used in call_VM_base(); i.e., we should use the | |
| 1335 // StubRoutines::forward_exception code. For now this doesn't work | |
| 1336 // here because the rsp is not correctly set at this point. | |
| 1337 __ MacroAssembler::call_VM(noreg, | |
| 1338 CAST_FROM_FN_PTR(address, | |
| 1339 InterpreterRuntime::throw_pending_exception)); | |
| 1340 __ should_not_reach_here(); | |
| 1341 __ bind(L); | |
| 1342 } | |
| 1343 | |
| 1344 // do unlocking if necessary | |
| 1345 { | |
| 1346 Label L; | |
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1347 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1348 __ testl(t, JVM_ACC_SYNCHRONIZED); |
| 1349 __ jcc(Assembler::zero, L); | |
| 1350 // the code below should be shared with interpreter macro | |
| 1351 // assembler implementation | |
| 1352 { | |
| 1353 Label unlock; | |
| 1354 // BasicObjectLock will be first in list, since this is a | |
| 1355 // synchronized method. However, need to check that the object | |
| 1356 // has not been unlocked by an explicit monitorexit bytecode. | |
| 1357 const Address monitor(rbp, | |
| 1358 (intptr_t)(frame::interpreter_frame_initial_sp_offset * | |
| 1359 wordSize - sizeof(BasicObjectLock))); | |
| 1360 | |
| 1361 // monitor expect in c_rarg1 for slow unlock path | |
| 304 | 1362 __ lea(c_rarg1, monitor); // address of first monitor |
| 0 | 1363 |
| 304 | 1364 __ movptr(t, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 1365 __ testptr(t, t); | |
| 0 | 1366 __ jcc(Assembler::notZero, unlock); |
| 1367 | |
| 1368 // Entry already unlocked, need to throw exception | |
| 1369 __ MacroAssembler::call_VM(noreg, | |
| 1370 CAST_FROM_FN_PTR(address, | |
| 1371 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 1372 __ should_not_reach_here(); | |
| 1373 | |
| 1374 __ bind(unlock); | |
| 1375 __ unlock_object(c_rarg1); | |
| 1376 } | |
| 1377 __ bind(L); | |
| 1378 } | |
| 1379 | |
| 1380 // jvmti support | |
| 1381 // Note: This must happen _after_ handling/throwing any exceptions since | |
| 1382 // the exception handler code notifies the runtime of method exits | |
| 1383 // too. If this happens before, method entry/exit notifications are | |
| 1384 // not properly paired (was bug - gri 11/22/99). | |
| 1385 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1386 | |
| 1387 // restore potential result in edx:eax, call result handler to | |
| 1388 // restore potential result in ST0 & handle result | |
| 1389 | |
| 1390 __ pop(ltos); | |
| 1391 __ pop(dtos); | |
| 1392 | |
| 304 | 1393 __ movptr(t, Address(rbp, |
| 1394 (frame::interpreter_frame_result_handler_offset) * wordSize)); | |
| 0 | 1395 __ call(t); |
| 1396 | |
| 1397 // remove activation | |
| 304 | 1398 __ movptr(t, Address(rbp, |
| 1399 frame::interpreter_frame_sender_sp_offset * | |
| 1400 wordSize)); // get sender sp | |
| 0 | 1401 __ leave(); // remove frame anchor |
| 304 | 1402 __ pop(rdi); // get return address |
| 1403 __ mov(rsp, t); // set sp to sender sp | |
| 0 | 1404 __ jmp(rdi); |
| 1405 | |
| 1406 if (inc_counter) { | |
| 1407 // Handle overflow of counter and compile method | |
| 1408 __ bind(invocation_counter_overflow); | |
| 1409 generate_counter_overflow(&continue_after_compile); | |
| 1410 } | |
| 1411 | |
| 1412 return entry_point; | |
| 1413 } | |
| 1414 | |
| 1415 // | |
| 1416 // Generic interpreted method entry to (asm) interpreter | |
| 1417 // | |
| 1418 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1419 // determine code generation flags | |
| 1420 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1421 | |
|
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1422 // ebx: Method* |
| 0 | 1423 // r13: sender sp |
| 1424 address entry_point = __ pc(); | |
| 1425 | |
|
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1426 const Address constMethod(rbx, Method::const_offset()); |
|
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1427 const Address access_flags(rbx, Method::access_flags_offset()); |
|
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1428 const Address size_of_parameters(rdx, |
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|
1429 ConstMethod::size_of_parameters_offset()); |
|
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|
1430 const Address size_of_locals(rdx, ConstMethod::size_of_locals_offset()); |
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1431 |
| 0 | 1432 |
| 1433 // get parameter size (always needed) | |
|
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|
1434 __ movptr(rdx, constMethod); |
|
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1435 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1436 |
|
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1437 // rbx: Method* |
| 0 | 1438 // rcx: size of parameters |
| 1439 // r13: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
| 1440 | |
|
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1441 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
| 0 | 1442 __ subl(rdx, rcx); // rdx = no. of additional locals |
| 1443 | |
| 1444 // YYY | |
| 1445 // __ incrementl(rdx); | |
| 1446 // __ andl(rdx, -2); | |
| 1447 | |
| 1448 // see if we've got enough room on the stack for locals plus overhead. | |
| 1449 generate_stack_overflow_check(); | |
| 1450 | |
| 1451 // get return address | |
| 304 | 1452 __ pop(rax); |
| 0 | 1453 |
| 1454 // compute beginning of parameters (r14) | |
| 304 | 1455 __ lea(r14, Address(rsp, rcx, Address::times_8, -wordSize)); |
| 0 | 1456 |
| 1457 // rdx - # of additional locals | |
| 1458 // allocate space for locals | |
| 1459 // explicitly initialize locals | |
| 1460 { | |
| 1461 Label exit, loop; | |
| 1462 __ testl(rdx, rdx); | |
| 1463 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
| 1464 __ bind(loop); | |
| 304 | 1465 __ push((int) NULL_WORD); // initialize local variables |
| 0 | 1466 __ decrementl(rdx); // until everything initialized |
| 1467 __ jcc(Assembler::greater, loop); | |
| 1468 __ bind(exit); | |
| 1469 } | |
| 1470 | |
| 1471 // initialize fixed part of activation frame | |
| 1472 generate_fixed_frame(false); | |
| 1473 | |
| 1474 // make sure method is not native & not abstract | |
| 1475 #ifdef ASSERT | |
| 1476 __ movl(rax, access_flags); | |
| 1477 { | |
| 1478 Label L; | |
| 1479 __ testl(rax, JVM_ACC_NATIVE); | |
| 1480 __ jcc(Assembler::zero, L); | |
| 1481 __ stop("tried to execute native method as non-native"); | |
| 1482 __ bind(L); | |
| 1483 } | |
| 1484 { | |
| 1485 Label L; | |
| 1486 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1487 __ jcc(Assembler::zero, L); | |
| 1488 __ stop("tried to execute abstract method in interpreter"); | |
| 1489 __ bind(L); | |
| 1490 } | |
| 1491 #endif | |
| 1492 | |
| 1493 // Since at this point in the method invocation the exception | |
| 1494 // handler would try to exit the monitor of synchronized methods | |
| 1495 // which hasn't been entered yet, we set the thread local variable | |
| 1496 // _do_not_unlock_if_synchronized to true. The remove_activation | |
| 1497 // will check this flag. | |
| 1498 | |
| 1499 const Address do_not_unlock_if_synchronized(r15_thread, | |
| 1500 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1501 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1502 | |
|
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|
1503 __ profile_parameters_type(rax, rcx, rdx); |
| 0 | 1504 // increment invocation count & check for overflow |
| 1505 Label invocation_counter_overflow; | |
| 1506 Label profile_method; | |
| 1507 Label profile_method_continue; | |
| 1508 if (inc_counter) { | |
| 1509 generate_counter_incr(&invocation_counter_overflow, | |
| 1510 &profile_method, | |
| 1511 &profile_method_continue); | |
| 1512 if (ProfileInterpreter) { | |
| 1513 __ bind(profile_method_continue); | |
| 1514 } | |
| 1515 } | |
| 1516 | |
| 1517 Label continue_after_compile; | |
| 1518 __ bind(continue_after_compile); | |
| 1519 | |
| 1520 // check for synchronized interpreted methods | |
| 1521 bang_stack_shadow_pages(false); | |
| 1522 | |
| 1523 // reset the _do_not_unlock_if_synchronized flag | |
| 1524 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1525 | |
| 1526 // check for synchronized methods | |
| 1527 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1528 // so method is not locked if overflows. | |
| 1529 if (synchronized) { | |
| 1530 // Allocate monitor and lock method | |
| 1531 lock_method(); | |
| 1532 } else { | |
| 1533 // no synchronization necessary | |
| 1534 #ifdef ASSERT | |
| 1535 { | |
| 1536 Label L; | |
| 1537 __ movl(rax, access_flags); | |
| 1538 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1539 __ jcc(Assembler::zero, L); | |
| 1540 __ stop("method needs synchronization"); | |
| 1541 __ bind(L); | |
| 1542 } | |
| 1543 #endif | |
| 1544 } | |
| 1545 | |
| 1546 // start execution | |
| 1547 #ifdef ASSERT | |
| 1548 { | |
| 1549 Label L; | |
| 1550 const Address monitor_block_top (rbp, | |
| 1551 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1552 __ movptr(rax, monitor_block_top); |
| 1553 __ cmpptr(rax, rsp); | |
| 0 | 1554 __ jcc(Assembler::equal, L); |
| 1555 __ stop("broken stack frame setup in interpreter"); | |
| 1556 __ bind(L); | |
| 1557 } | |
| 1558 #endif | |
| 1559 | |
| 1560 // jvmti support | |
| 1561 __ notify_method_entry(); | |
| 1562 | |
| 1563 __ dispatch_next(vtos); | |
| 1564 | |
| 1565 // invocation counter overflow | |
| 1566 if (inc_counter) { | |
| 1567 if (ProfileInterpreter) { | |
| 1568 // We have decided to profile this method in the interpreter | |
| 1569 __ bind(profile_method); | |
|
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|
1570 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
|
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|
1571 __ set_method_data_pointer_for_bcp(); |
|
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|
1572 __ get_method(rbx); |
| 0 | 1573 __ jmp(profile_method_continue); |
| 1574 } | |
| 1575 // Handle overflow of counter and compile method | |
| 1576 __ bind(invocation_counter_overflow); | |
| 1577 generate_counter_overflow(&continue_after_compile); | |
| 1578 } | |
| 1579 | |
| 1580 return entry_point; | |
| 1581 } | |
| 1582 | |
| 1583 // Entry points | |
| 1584 // | |
| 1585 // Here we generate the various kind of entries into the interpreter. | |
| 1586 // The two main entry type are generic bytecode methods and native | |
| 1587 // call method. These both come in synchronized and non-synchronized | |
| 1588 // versions but the frame layout they create is very similar. The | |
| 1589 // other method entry types are really just special purpose entries | |
| 1590 // that are really entry and interpretation all in one. These are for | |
| 1591 // trivial methods like accessor, empty, or special math methods. | |
| 1592 // | |
| 1593 // When control flow reaches any of the entry types for the interpreter | |
| 1594 // the following holds -> | |
| 1595 // | |
| 1596 // Arguments: | |
| 1597 // | |
|
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|
1598 // rbx: Method* |
| 0 | 1599 // |
| 1600 // Stack layout immediately at entry | |
| 1601 // | |
| 1602 // [ return address ] <--- rsp | |
| 1603 // [ parameter n ] | |
| 1604 // ... | |
| 1605 // [ parameter 1 ] | |
| 1606 // [ expression stack ] (caller's java expression stack) | |
| 1607 | |
| 1608 // Assuming that we don't go to one of the trivial specialized entries | |
| 1609 // the stack will look like below when we are ready to execute the | |
| 1610 // first bytecode (or call the native routine). The register usage | |
| 1611 // will be as the template based interpreter expects (see | |
| 1612 // interpreter_amd64.hpp). | |
| 1613 // | |
| 1614 // local variables follow incoming parameters immediately; i.e. | |
| 1615 // the return address is moved to the end of the locals). | |
| 1616 // | |
| 1617 // [ monitor entry ] <--- rsp | |
| 1618 // ... | |
| 1619 // [ monitor entry ] | |
| 1620 // [ expr. stack bottom ] | |
| 1621 // [ saved r13 ] | |
| 1622 // [ current r14 ] | |
|
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|
1623 // [ Method* ] |
| 0 | 1624 // [ saved ebp ] <--- rbp |
| 1625 // [ return address ] | |
| 1626 // [ local variable m ] | |
| 1627 // ... | |
| 1628 // [ local variable 1 ] | |
| 1629 // [ parameter n ] | |
| 1630 // ... | |
| 1631 // [ parameter 1 ] <--- r14 | |
| 1632 | |
| 1633 address AbstractInterpreterGenerator::generate_method_entry( | |
| 1634 AbstractInterpreter::MethodKind kind) { | |
| 1635 // determine code generation flags | |
| 1636 bool synchronized = false; | |
| 1637 address entry_point = NULL; | |
|
11080
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diff
changeset
|
1638 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
| 0 | 1639 |
| 1640 switch (kind) { | |
|
11080
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|
1641 case Interpreter::zerolocals : break; |
|
b800986664f4
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changeset
|
1642 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
|
b800986664f4
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|
1643 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
|
b800986664f4
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|
1644 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
|
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changeset
|
1645 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
|
b800986664f4
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changeset
|
1646 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
|
b800986664f4
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changeset
|
1647 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
|
706
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
parents:
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diff
changeset
|
1648 |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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changeset
|
1649 case Interpreter::java_lang_math_sin : // fall thru |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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|
1650 case Interpreter::java_lang_math_cos : // fall thru |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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|
1651 case Interpreter::java_lang_math_tan : // fall thru |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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|
1652 case Interpreter::java_lang_math_abs : // fall thru |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
never
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|
1653 case Interpreter::java_lang_math_log : // fall thru |
|
819880572f09
6539464: Math.log() produces inconsistent results between successive runs.
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changeset
|
1654 case Interpreter::java_lang_math_log10 : // fall thru |
|
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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diff
changeset
|
1655 case Interpreter::java_lang_math_sqrt : // fall thru |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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4771
diff
changeset
|
1656 case Interpreter::java_lang_math_pow : // fall thru |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
1657 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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2245
diff
changeset
|
1658 case Interpreter::java_lang_ref_reference_get |
|
11080
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
1659 : entry_point = ig_this->generate_Reference_get_entry(); break; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
1660 case Interpreter::java_util_zip_CRC32_update |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
1661 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
1662 case Interpreter::java_util_zip_CRC32_updateBytes |
|
b800986664f4
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|
1663 : // fall thru |
|
b800986664f4
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changeset
|
1664 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
|
b800986664f4
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changeset
|
1665 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
|
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
1666 default: |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
1667 fatal(err_msg("unexpected method kind: %d", kind)); |
|
1d7922586cf6
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|
1668 break; |
| 0 | 1669 } |
| 1670 | |
| 1671 if (entry_point) { | |
| 1672 return entry_point; | |
| 1673 } | |
| 1674 | |
|
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|
1675 return ig_this->generate_normal_entry(synchronized); |
| 0 | 1676 } |
| 1677 | |
|
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|
1678 // These should never be compiled since the interpreter will prefer |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1679 // the compiled version to the intrinsic version. |
|
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|
1680 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
|
ddb7834449d0
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|
1681 switch (method_kind(m)) { |
|
ddb7834449d0
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|
1682 case Interpreter::java_lang_math_sin : // fall thru |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1683 case Interpreter::java_lang_math_cos : // fall thru |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1684 case Interpreter::java_lang_math_tan : // fall thru |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1685 case Interpreter::java_lang_math_abs : // fall thru |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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|
1686 case Interpreter::java_lang_math_log : // fall thru |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
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parents:
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changeset
|
1687 case Interpreter::java_lang_math_log10 : // fall thru |
|
6084
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
roland
parents:
4771
diff
changeset
|
1688 case Interpreter::java_lang_math_sqrt : // fall thru |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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4771
diff
changeset
|
1689 case Interpreter::java_lang_math_pow : // fall thru |
|
6759698e3140
7133857: exp() and pow() should use the x87 ISA on x86
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changeset
|
1690 case Interpreter::java_lang_math_exp : |
|
1174
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|
1691 return false; |
|
ddb7834449d0
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diff
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|
1692 default: |
|
ddb7834449d0
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|
1693 return true; |
|
ddb7834449d0
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|
1694 } |
|
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1695 } |
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1696 |
| 0 | 1697 // How much stack a method activation needs in words. |
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1698 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1699 const int entry_size = frame::interpreter_frame_monitor_size(); |
| 1700 | |
| 1701 // total overhead size: entry_size + (saved rbp thru expr stack | |
| 1702 // bottom). be sure to change this if you add/subtract anything | |
| 1703 // to/from the overhead area | |
| 1704 const int overhead_size = | |
| 1705 -(frame::interpreter_frame_initial_sp_offset) + entry_size; | |
| 1706 | |
| 1707 const int stub_code = frame::entry_frame_after_call_words; | |
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1708 const int method_stack = (method->max_locals() + method->max_stack()) * |
| 1506 | 1709 Interpreter::stackElementWords; |
| 0 | 1710 return (overhead_size + method_stack + stub_code); |
| 1711 } | |
| 1712 | |
| 1713 //----------------------------------------------------------------------------- | |
| 1714 // Exceptions | |
| 1715 | |
| 1716 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1717 // Entry point in previous activation (i.e., if the caller was | |
| 1718 // interpreted) | |
| 1719 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1720 // Restore sp to interpreter_frame_last_sp even though we are going | |
| 1721 // to empty the expression stack for the exception processing. | |
| 304 | 1722 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 1723 // rax: exception |
| 1724 // rdx: return address/pc that threw exception | |
| 1725 __ restore_bcp(); // r13 points to call/send | |
| 1726 __ restore_locals(); | |
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1727 __ reinit_heapbase(); // restore r12 as heapbase. |
| 0 | 1728 // Entry point for exceptions thrown within interpreter code |
| 1729 Interpreter::_throw_exception_entry = __ pc(); | |
| 1730 // expression stack is undefined here | |
| 1731 // rax: exception | |
| 1732 // r13: exception bcp | |
| 1733 __ verify_oop(rax); | |
| 304 | 1734 __ mov(c_rarg1, rax); |
| 0 | 1735 |
| 1736 // expression stack must be empty before entering the VM in case of | |
| 1737 // an exception | |
| 1738 __ empty_expression_stack(); | |
| 1739 // find exception handler address and preserve exception oop | |
| 1740 __ call_VM(rdx, | |
| 1741 CAST_FROM_FN_PTR(address, | |
| 1742 InterpreterRuntime::exception_handler_for_exception), | |
| 1743 c_rarg1); | |
| 1744 // rax: exception handler entry point | |
| 1745 // rdx: preserved exception oop | |
| 1746 // r13: bcp for exception handler | |
| 1747 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
| 1748 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
| 1749 | |
| 1750 // If the exception is not handled in the current frame the frame is | |
| 1751 // removed and the exception is rethrown (i.e. exception | |
| 1752 // continuation is _rethrow_exception). | |
| 1753 // | |
| 1754 // Note: At this point the bci is still the bxi for the instruction | |
| 1755 // which caused the exception and the expression stack is | |
| 1756 // empty. Thus, for any VM calls at this point, GC will find a legal | |
| 1757 // oop map (with empty expression stack). | |
| 1758 | |
| 1759 // In current activation | |
| 1760 // tos: exception | |
| 1761 // esi: exception bcp | |
| 1762 | |
| 1763 // | |
| 1764 // JVMTI PopFrame support | |
| 1765 // | |
| 1766 | |
| 1767 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 1768 __ empty_expression_stack(); | |
| 1769 // Set the popframe_processing bit in pending_popframe_condition | |
| 1770 // indicating that we are currently handling popframe, so that | |
| 1771 // call_VMs that may happen later do not trigger new popframe | |
| 1772 // handling cycles. | |
| 1773 __ movl(rdx, Address(r15_thread, JavaThread::popframe_condition_offset())); | |
| 1774 __ orl(rdx, JavaThread::popframe_processing_bit); | |
| 1775 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), rdx); | |
| 1776 | |
| 1777 { | |
| 1778 // Check to see whether we are returning to a deoptimized frame. | |
| 1779 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1780 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1781 // In this case, we can't call dispatch_next() after the frame is | |
| 1782 // popped, but instead must save the incoming arguments and restore | |
| 1783 // them after deoptimization has occurred. | |
| 1784 // | |
| 1785 // Note that we don't compare the return PC against the | |
| 1786 // deoptimization blob's unpack entry because of the presence of | |
| 1787 // adapter frames in C2. | |
| 1788 Label caller_not_deoptimized; | |
| 304 | 1789 __ movptr(c_rarg1, Address(rbp, frame::return_addr_offset * wordSize)); |
| 0 | 1790 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1791 InterpreterRuntime::interpreter_contains), c_rarg1); | |
| 1792 __ testl(rax, rax); | |
| 1793 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
| 1794 | |
| 1795 // Compute size of arguments for saving when returning to | |
| 1796 // deoptimized caller | |
| 1797 __ get_method(rax); | |
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1798 __ movptr(rax, Address(rax, Method::const_offset())); |
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1799 __ load_unsigned_short(rax, Address(rax, in_bytes(ConstMethod:: |
| 0 | 1800 size_of_parameters_offset()))); |
| 1506 | 1801 __ shll(rax, Interpreter::logStackElementSize); |
| 0 | 1802 __ restore_locals(); // XXX do we need this? |
| 304 | 1803 __ subptr(r14, rax); |
| 1804 __ addptr(r14, wordSize); | |
| 0 | 1805 // Save these arguments |
| 1806 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, | |
| 1807 Deoptimization:: | |
| 1808 popframe_preserve_args), | |
| 1809 r15_thread, rax, r14); | |
| 1810 | |
| 1811 __ remove_activation(vtos, rdx, | |
| 1812 /* throw_monitor_exception */ false, | |
| 1813 /* install_monitor_exception */ false, | |
| 1814 /* notify_jvmdi */ false); | |
| 1815 | |
| 1816 // Inform deoptimization that it is responsible for restoring | |
| 1817 // these arguments | |
| 1818 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1819 JavaThread::popframe_force_deopt_reexecution_bit); | |
| 1820 | |
| 1821 // Continue in deoptimization handler | |
| 1822 __ jmp(rdx); | |
| 1823 | |
| 1824 __ bind(caller_not_deoptimized); | |
| 1825 } | |
| 1826 | |
| 1827 __ remove_activation(vtos, rdx, /* rdx result (retaddr) is not used */ | |
| 1828 /* throw_monitor_exception */ false, | |
| 1829 /* install_monitor_exception */ false, | |
| 1830 /* notify_jvmdi */ false); | |
| 1831 | |
| 1832 // Finish with popframe handling | |
| 1833 // A previous I2C followed by a deoptimization might have moved the | |
| 1834 // outgoing arguments further up the stack. PopFrame expects the | |
| 1835 // mutations to those outgoing arguments to be preserved and other | |
| 1836 // constraints basically require this frame to look exactly as | |
| 1837 // though it had previously invoked an interpreted activation with | |
| 1838 // no space between the top of the expression stack (current | |
| 1839 // last_sp) and the top of stack. Rather than force deopt to | |
| 1840 // maintain this kind of invariant all the time we call a small | |
| 1841 // fixup routine to move the mutated arguments onto the top of our | |
| 1842 // expression stack if necessary. | |
| 304 | 1843 __ mov(c_rarg1, rsp); |
| 1844 __ movptr(c_rarg2, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
| 0 | 1845 // PC must point into interpreter here |
| 1846 __ set_last_Java_frame(noreg, rbp, __ pc()); | |
| 1847 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), r15_thread, c_rarg1, c_rarg2); | |
| 1848 __ reset_last_Java_frame(true, true); | |
| 1849 // Restore the last_sp and null it out | |
| 304 | 1850 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 1851 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); | |
| 0 | 1852 |
| 1853 __ restore_bcp(); // XXX do we need this? | |
| 1854 __ restore_locals(); // XXX do we need this? | |
| 1855 // The method data pointer was incremented already during | |
| 1856 // call profiling. We have to restore the mdp for the current bcp. | |
| 1857 if (ProfileInterpreter) { | |
| 1858 __ set_method_data_pointer_for_bcp(); | |
| 1859 } | |
| 1860 | |
| 1861 // Clear the popframe condition flag | |
| 1862 __ movl(Address(r15_thread, JavaThread::popframe_condition_offset()), | |
| 1863 JavaThread::popframe_inactive); | |
| 1864 | |
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1865 #if INCLUDE_JVMTI |
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1866 if (EnableInvokeDynamic) { |
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1867 Label L_done; |
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1868 const Register local0 = r14; |
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1869 |
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1870 __ cmpb(Address(r13, 0), Bytecodes::_invokestatic); |
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1871 __ jcc(Assembler::notEqual, L_done); |
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1872 |
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1873 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1874 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1875 |
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1876 __ get_method(rdx); |
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1877 __ movptr(rax, Address(local0, 0)); |
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1878 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, r13); |
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1879 |
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1880 __ testptr(rax, rax); |
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1881 __ jcc(Assembler::zero, L_done); |
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1882 |
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1883 __ movptr(Address(rbx, 0), rax); |
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1884 __ bind(L_done); |
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1885 } |
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1886 #endif // INCLUDE_JVMTI |
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1887 |
| 0 | 1888 __ dispatch_next(vtos); |
| 1889 // end of PopFrame support | |
| 1890 | |
| 1891 Interpreter::_remove_activation_entry = __ pc(); | |
| 1892 | |
| 1893 // preserve exception over this code sequence | |
| 1894 __ pop_ptr(rax); | |
| 304 | 1895 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), rax); |
| 0 | 1896 // remove the activation (without doing throws on illegalMonitorExceptions) |
| 1897 __ remove_activation(vtos, rdx, false, true, false); | |
| 1898 // restore exception | |
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1899 __ get_vm_result(rax, r15_thread); |
| 0 | 1900 |
| 1901 // In between activations - previous activation type unknown yet | |
| 1902 // compute continuation point - the continuation point expects the | |
| 1903 // following registers set up: | |
| 1904 // | |
| 1905 // rax: exception | |
| 1906 // rdx: return address/pc that threw exception | |
| 1907 // rsp: expression stack of caller | |
| 1908 // rbp: ebp of caller | |
| 304 | 1909 __ push(rax); // save exception |
| 1910 __ push(rdx); // save return address | |
| 0 | 1911 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, |
| 1912 SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 1913 r15_thread, rdx); |
| 304 | 1914 __ mov(rbx, rax); // save exception handler |
| 1915 __ pop(rdx); // restore return address | |
| 1916 __ pop(rax); // restore exception | |
| 0 | 1917 // Note that an "issuing PC" is actually the next PC after the call |
| 1918 __ jmp(rbx); // jump to exception | |
| 1919 // handler of caller | |
| 1920 } | |
| 1921 | |
| 1922 | |
| 1923 // | |
| 1924 // JVMTI ForceEarlyReturn support | |
| 1925 // | |
| 1926 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 1927 address entry = __ pc(); | |
| 1928 | |
| 1929 __ restore_bcp(); | |
| 1930 __ restore_locals(); | |
| 1931 __ empty_expression_stack(); | |
| 1932 __ load_earlyret_value(state); | |
| 1933 | |
| 304 | 1934 __ movptr(rdx, Address(r15_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 1935 Address cond_addr(rdx, JvmtiThreadState::earlyret_state_offset()); |
| 1936 | |
| 1937 // Clear the earlyret state | |
| 1938 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
| 1939 | |
| 1940 __ remove_activation(state, rsi, | |
| 1941 false, /* throw_monitor_exception */ | |
| 1942 false, /* install_monitor_exception */ | |
| 1943 true); /* notify_jvmdi */ | |
| 1944 __ jmp(rsi); | |
| 1945 | |
| 1946 return entry; | |
| 1947 } // end of ForceEarlyReturn support | |
| 1948 | |
| 1949 | |
| 1950 //----------------------------------------------------------------------------- | |
| 1951 // Helper for vtos entry point generation | |
| 1952 | |
| 1953 void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, | |
| 1954 address& bep, | |
| 1955 address& cep, | |
| 1956 address& sep, | |
| 1957 address& aep, | |
| 1958 address& iep, | |
| 1959 address& lep, | |
| 1960 address& fep, | |
| 1961 address& dep, | |
| 1962 address& vep) { | |
| 1963 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 1964 Label L; | |
| 1965 aep = __ pc(); __ push_ptr(); __ jmp(L); | |
| 1966 fep = __ pc(); __ push_f(); __ jmp(L); | |
| 1967 dep = __ pc(); __ push_d(); __ jmp(L); | |
| 1968 lep = __ pc(); __ push_l(); __ jmp(L); | |
| 1969 bep = cep = sep = | |
| 1970 iep = __ pc(); __ push_i(); | |
| 1971 vep = __ pc(); | |
| 1972 __ bind(L); | |
| 1973 generate_and_dispatch(t); | |
| 1974 } | |
| 1975 | |
| 1976 | |
| 1977 //----------------------------------------------------------------------------- | |
| 1978 // Generation of individual instructions | |
| 1979 | |
| 1980 // helpers for generate_and_dispatch | |
| 1981 | |
| 1982 | |
| 1983 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 1984 : TemplateInterpreterGenerator(code) { | |
| 1985 generate_all(); // down here so it can be "virtual" | |
| 1986 } | |
| 1987 | |
| 1988 //----------------------------------------------------------------------------- | |
| 1989 | |
| 1990 // Non-product code | |
| 1991 #ifndef PRODUCT | |
| 1992 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 1993 address entry = __ pc(); | |
| 1994 | |
| 1995 __ push(state); | |
| 304 | 1996 __ push(c_rarg0); |
| 1997 __ push(c_rarg1); | |
| 1998 __ push(c_rarg2); | |
| 1999 __ push(c_rarg3); | |
| 2000 __ mov(c_rarg2, rax); // Pass itos | |
| 0 | 2001 #ifdef _WIN64 |
| 2002 __ movflt(xmm3, xmm0); // Pass ftos | |
| 2003 #endif | |
| 2004 __ call_VM(noreg, | |
| 2005 CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), | |
| 2006 c_rarg1, c_rarg2, c_rarg3); | |
| 304 | 2007 __ pop(c_rarg3); |
| 2008 __ pop(c_rarg2); | |
| 2009 __ pop(c_rarg1); | |
| 2010 __ pop(c_rarg0); | |
| 0 | 2011 __ pop(state); |
| 2012 __ ret(0); // return from result handler | |
| 2013 | |
| 2014 return entry; | |
| 2015 } | |
| 2016 | |
| 2017 void TemplateInterpreterGenerator::count_bytecode() { | |
| 2018 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); | |
| 2019 } | |
| 2020 | |
| 2021 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 2022 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); | |
| 2023 } | |
| 2024 | |
| 2025 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 2026 __ mov32(rbx, ExternalAddress((address) &BytecodePairHistogram::_index)); | |
| 2027 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
| 2028 __ orl(rbx, | |
| 2029 ((int) t->bytecode()) << | |
| 2030 BytecodePairHistogram::log2_number_of_codes); | |
| 2031 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
| 2032 __ lea(rscratch1, ExternalAddress((address) BytecodePairHistogram::_counters)); | |
| 2033 __ incrementl(Address(rscratch1, rbx, Address::times_4)); | |
| 2034 } | |
| 2035 | |
| 2036 | |
| 2037 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2038 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2039 // The run-time runtime saves the right registers, depending on | |
| 2040 // the tosca in-state for the given template. | |
| 2041 | |
| 2042 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
| 2043 "entry must have been generated"); | |
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2044 __ mov(r12, rsp); // remember sp (can only use r12 if not using call_VM) |
| 304 | 2045 __ andptr(rsp, -16); // align stack as required by ABI |
| 0 | 2046 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); |
| 304 | 2047 __ mov(rsp, r12); // restore sp |
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2048 __ reinit_heapbase(); |
| 0 | 2049 } |
| 2050 | |
| 2051 | |
| 2052 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 2053 Label L; | |
| 2054 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
| 2055 StopInterpreterAt); | |
| 2056 __ jcc(Assembler::notEqual, L); | |
| 2057 __ int3(); | |
| 2058 __ bind(L); | |
| 2059 } | |
| 2060 #endif // !PRODUCT | |
| 304 | 2061 #endif // ! CC_INTERP |