Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateInterpreter_x86_32.cpp @ 12962:5ccbab1c69f3
8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by: kvn, twisti
| author | roland |
|---|---|
| date | Tue, 22 Oct 2013 09:51:47 +0200 |
| parents | ce0cc25bc5e2 |
| children | bd3237e0e18d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/deoptimization.hpp" | |
| 40 #include "runtime/frame.inline.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 42 #include "runtime/stubRoutines.hpp" | |
| 43 #include "runtime/synchronizer.hpp" | |
| 44 #include "runtime/timer.hpp" | |
| 45 #include "runtime/vframeArray.hpp" | |
| 46 #include "utilities/debug.hpp" | |
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47 #include "utilities/macros.hpp" |
| 0 | 48 |
| 49 #define __ _masm-> | |
| 50 | |
| 51 | |
| 52 #ifndef CC_INTERP | |
| 53 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
| 54 const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; | |
| 55 const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; | |
| 56 | |
| 57 //------------------------------------------------------------------------------------------------------------------------ | |
| 58 | |
| 59 address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { | |
| 60 address entry = __ pc(); | |
| 61 | |
| 62 // Note: There should be a minimal interpreter frame set up when stack | |
| 63 // overflow occurs since we check explicitly for it now. | |
| 64 // | |
| 65 #ifdef ASSERT | |
| 66 { Label L; | |
| 304 | 67 __ lea(rax, Address(rbp, |
| 0 | 68 frame::interpreter_frame_monitor_block_top_offset * wordSize)); |
| 304 | 69 __ cmpptr(rax, rsp); // rax, = maximal rsp for current rbp, |
| 0 | 70 // (stack grows negative) |
| 71 __ jcc(Assembler::aboveEqual, L); // check if frame is complete | |
| 72 __ stop ("interpreter frame not set up"); | |
| 73 __ bind(L); | |
| 74 } | |
| 75 #endif // ASSERT | |
| 76 // Restore bcp under the assumption that the current frame is still | |
| 77 // interpreted | |
| 78 __ restore_bcp(); | |
| 79 | |
| 80 // expression stack must be empty before entering the VM if an exception | |
| 81 // happened | |
| 82 __ empty_expression_stack(); | |
| 83 __ empty_FPU_stack(); | |
| 84 // throw exception | |
| 85 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError)); | |
| 86 return entry; | |
| 87 } | |
| 88 | |
| 89 address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler(const char* name) { | |
| 90 address entry = __ pc(); | |
| 91 // expression stack must be empty before entering the VM if an exception happened | |
| 92 __ empty_expression_stack(); | |
| 93 __ empty_FPU_stack(); | |
| 94 // setup parameters | |
| 95 // ??? convention: expect aberrant index in register rbx, | |
| 96 __ lea(rax, ExternalAddress((address)name)); | |
| 97 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_ArrayIndexOutOfBoundsException), rax, rbx); | |
| 98 return entry; | |
| 99 } | |
| 100 | |
| 101 address TemplateInterpreterGenerator::generate_ClassCastException_handler() { | |
| 102 address entry = __ pc(); | |
| 103 // object is at TOS | |
| 304 | 104 __ pop(rax); |
| 0 | 105 // expression stack must be empty before entering the VM if an exception |
| 106 // happened | |
| 107 __ empty_expression_stack(); | |
| 108 __ empty_FPU_stack(); | |
| 109 __ call_VM(noreg, | |
| 110 CAST_FROM_FN_PTR(address, | |
| 111 InterpreterRuntime::throw_ClassCastException), | |
| 112 rax); | |
| 113 return entry; | |
| 114 } | |
| 115 | |
| 116 address TemplateInterpreterGenerator::generate_exception_handler_common(const char* name, const char* message, bool pass_oop) { | |
| 117 assert(!pass_oop || message == NULL, "either oop or message but not both"); | |
| 118 address entry = __ pc(); | |
| 119 if (pass_oop) { | |
| 120 // object is at TOS | |
| 304 | 121 __ pop(rbx); |
| 0 | 122 } |
| 123 // expression stack must be empty before entering the VM if an exception happened | |
| 124 __ empty_expression_stack(); | |
| 125 __ empty_FPU_stack(); | |
| 126 // setup parameters | |
| 127 __ lea(rax, ExternalAddress((address)name)); | |
| 128 if (pass_oop) { | |
| 129 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_klass_exception), rax, rbx); | |
| 130 } else { | |
| 131 if (message != NULL) { | |
| 132 __ lea(rbx, ExternalAddress((address)message)); | |
| 133 } else { | |
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134 __ movptr(rbx, NULL_WORD); |
| 0 | 135 } |
| 136 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), rax, rbx); | |
| 137 } | |
| 138 // throw exception | |
| 139 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 140 return entry; | |
| 141 } | |
| 142 | |
| 143 | |
| 144 address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { | |
| 145 address entry = __ pc(); | |
| 146 // NULL last_sp until next java call | |
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147 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| 0 | 148 __ dispatch_next(state); |
| 149 return entry; | |
| 150 } | |
| 151 | |
| 152 | |
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153 address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { |
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154 TosState incoming_state = state; |
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155 address entry = __ pc(); |
| 0 | 156 |
| 157 #ifdef COMPILER2 | |
| 158 // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases | |
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159 if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) { |
| 0 | 160 for (int i = 1; i < 8; i++) { |
| 161 __ ffree(i); | |
| 162 } | |
| 163 } else if (UseSSE < 2) { | |
| 164 __ empty_FPU_stack(); | |
| 165 } | |
| 166 #endif | |
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167 if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) { |
| 0 | 168 __ MacroAssembler::verify_FPU(1, "generate_return_entry_for compiled"); |
| 169 } else { | |
| 170 __ MacroAssembler::verify_FPU(0, "generate_return_entry_for compiled"); | |
| 171 } | |
| 172 | |
| 173 // In SSE mode, interpreter returns FP results in xmm0 but they need | |
| 174 // to end up back on the FPU so it can operate on them. | |
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175 if (incoming_state == ftos && UseSSE >= 1) { |
| 304 | 176 __ subptr(rsp, wordSize); |
| 0 | 177 __ movflt(Address(rsp, 0), xmm0); |
| 178 __ fld_s(Address(rsp, 0)); | |
| 304 | 179 __ addptr(rsp, wordSize); |
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180 } else if (incoming_state == dtos && UseSSE >= 2) { |
| 304 | 181 __ subptr(rsp, 2*wordSize); |
| 0 | 182 __ movdbl(Address(rsp, 0), xmm0); |
| 183 __ fld_d(Address(rsp, 0)); | |
| 304 | 184 __ addptr(rsp, 2*wordSize); |
| 0 | 185 } |
| 186 | |
| 187 __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_return_entry_for in interpreter"); | |
| 188 | |
| 189 // Restore stack bottom in case i2c adjusted stack | |
| 304 | 190 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
| 0 | 191 // and NULL it as marker that rsp is now tos until next java call |
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192 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| 0 | 193 |
| 194 __ restore_bcp(); | |
| 195 __ restore_locals(); | |
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196 |
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197 if (incoming_state == atos) { |
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198 Register mdp = rbx; |
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199 Register tmp = rcx; |
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200 __ profile_return_type(mdp, rax, tmp); |
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201 } |
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202 |
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203 Label L_got_cache, L_giant_index; |
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204 if (EnableInvokeDynamic) { |
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205 __ cmpb(Address(rsi, 0), Bytecodes::_invokedynamic); |
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206 __ jcc(Assembler::equal, L_giant_index); |
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207 } |
| 1565 | 208 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u2)); |
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209 __ bind(L_got_cache); |
| 0 | 210 __ movl(rbx, Address(rbx, rcx, |
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211 Address::times_ptr, ConstantPoolCache::base_offset() + |
| 0 | 212 ConstantPoolCacheEntry::flags_offset())); |
| 304 | 213 __ andptr(rbx, 0xFF); |
| 214 __ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale())); | |
| 0 | 215 __ dispatch_next(state, step); |
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216 |
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217 // out of the main line of code... |
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218 if (EnableInvokeDynamic) { |
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219 __ bind(L_giant_index); |
| 1565 | 220 __ get_cache_and_index_at_bcp(rbx, rcx, 1, sizeof(u4)); |
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221 __ jmp(L_got_cache); |
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222 } |
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223 |
| 0 | 224 return entry; |
| 225 } | |
| 226 | |
| 227 | |
| 228 address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, int step) { | |
| 229 address entry = __ pc(); | |
| 230 | |
| 231 // In SSE mode, FP results are in xmm0 | |
| 232 if (state == ftos && UseSSE > 0) { | |
| 304 | 233 __ subptr(rsp, wordSize); |
| 0 | 234 __ movflt(Address(rsp, 0), xmm0); |
| 235 __ fld_s(Address(rsp, 0)); | |
| 304 | 236 __ addptr(rsp, wordSize); |
| 0 | 237 } else if (state == dtos && UseSSE >= 2) { |
| 304 | 238 __ subptr(rsp, 2*wordSize); |
| 0 | 239 __ movdbl(Address(rsp, 0), xmm0); |
| 240 __ fld_d(Address(rsp, 0)); | |
| 304 | 241 __ addptr(rsp, 2*wordSize); |
| 0 | 242 } |
| 243 | |
| 244 __ MacroAssembler::verify_FPU(state == ftos || state == dtos ? 1 : 0, "generate_deopt_entry_for in interpreter"); | |
| 245 | |
| 246 // The stack is not extended by deopt but we must NULL last_sp as this | |
| 247 // entry is like a "return". | |
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248 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| 0 | 249 __ restore_bcp(); |
| 250 __ restore_locals(); | |
| 251 // handle exceptions | |
| 252 { Label L; | |
| 253 const Register thread = rcx; | |
| 254 __ get_thread(thread); | |
| 304 | 255 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 256 __ jcc(Assembler::zero, L); |
| 257 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); | |
| 258 __ should_not_reach_here(); | |
| 259 __ bind(L); | |
| 260 } | |
| 261 __ dispatch_next(state, step); | |
| 262 return entry; | |
| 263 } | |
| 264 | |
| 265 | |
| 266 int AbstractInterpreter::BasicType_as_index(BasicType type) { | |
| 267 int i = 0; | |
| 268 switch (type) { | |
| 269 case T_BOOLEAN: i = 0; break; | |
| 270 case T_CHAR : i = 1; break; | |
| 271 case T_BYTE : i = 2; break; | |
| 272 case T_SHORT : i = 3; break; | |
| 273 case T_INT : // fall through | |
| 274 case T_LONG : // fall through | |
| 275 case T_VOID : i = 4; break; | |
| 276 case T_FLOAT : i = 5; break; // have to treat float and double separately for SSE | |
| 277 case T_DOUBLE : i = 6; break; | |
| 278 case T_OBJECT : // fall through | |
| 279 case T_ARRAY : i = 7; break; | |
| 280 default : ShouldNotReachHere(); | |
| 281 } | |
| 282 assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds"); | |
| 283 return i; | |
| 284 } | |
| 285 | |
| 286 | |
| 287 address TemplateInterpreterGenerator::generate_result_handler_for(BasicType type) { | |
| 288 address entry = __ pc(); | |
| 289 switch (type) { | |
| 290 case T_BOOLEAN: __ c2bool(rax); break; | |
| 304 | 291 case T_CHAR : __ andptr(rax, 0xFFFF); break; |
| 0 | 292 case T_BYTE : __ sign_extend_byte (rax); break; |
| 293 case T_SHORT : __ sign_extend_short(rax); break; | |
| 294 case T_INT : /* nothing to do */ break; | |
| 295 case T_DOUBLE : | |
| 296 case T_FLOAT : | |
| 297 { const Register t = InterpreterRuntime::SignatureHandlerGenerator::temp(); | |
| 304 | 298 __ pop(t); // remove return address first |
| 0 | 299 // Must return a result for interpreter or compiler. In SSE |
| 300 // mode, results are returned in xmm0 and the FPU stack must | |
| 301 // be empty. | |
| 302 if (type == T_FLOAT && UseSSE >= 1) { | |
| 303 // Load ST0 | |
| 304 __ fld_d(Address(rsp, 0)); | |
| 305 // Store as float and empty fpu stack | |
| 306 __ fstp_s(Address(rsp, 0)); | |
| 307 // and reload | |
| 308 __ movflt(xmm0, Address(rsp, 0)); | |
| 309 } else if (type == T_DOUBLE && UseSSE >= 2 ) { | |
| 310 __ movdbl(xmm0, Address(rsp, 0)); | |
| 311 } else { | |
| 312 // restore ST0 | |
| 313 __ fld_d(Address(rsp, 0)); | |
| 314 } | |
| 315 // and pop the temp | |
| 304 | 316 __ addptr(rsp, 2 * wordSize); |
| 317 __ push(t); // restore return address | |
| 0 | 318 } |
| 319 break; | |
| 320 case T_OBJECT : | |
| 321 // retrieve result from frame | |
| 304 | 322 __ movptr(rax, Address(rbp, frame::interpreter_frame_oop_temp_offset*wordSize)); |
| 0 | 323 // and verify it |
| 324 __ verify_oop(rax); | |
| 325 break; | |
| 326 default : ShouldNotReachHere(); | |
| 327 } | |
| 328 __ ret(0); // return from result handler | |
| 329 return entry; | |
| 330 } | |
| 331 | |
| 332 address TemplateInterpreterGenerator::generate_safept_entry_for(TosState state, address runtime_entry) { | |
| 333 address entry = __ pc(); | |
| 334 __ push(state); | |
| 335 __ call_VM(noreg, runtime_entry); | |
| 336 __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); | |
| 337 return entry; | |
| 338 } | |
| 339 | |
| 340 | |
| 341 // Helpers for commoning out cases in the various type of method entries. | |
| 342 // | |
| 343 | |
| 344 // increment invocation count & check for overflow | |
| 345 // | |
| 346 // Note: checking for negative value instead of overflow | |
| 347 // so we have a 'sticky' overflow test | |
| 348 // | |
| 349 // rbx,: method | |
| 350 // rcx: invocation counter | |
| 351 // | |
| 352 void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) { | |
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353 Label done; |
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354 // Note: In tiered we increment either counters in MethodCounters* or in MDO |
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355 // depending if we're profiling or not. |
| 1783 | 356 if (TieredCompilation) { |
| 357 int increment = InvocationCounter::count_increment; | |
| 358 int mask = ((1 << Tier0InvokeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
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359 Label no_mdo; |
| 1783 | 360 if (ProfileInterpreter) { |
| 361 // Are we profiling? | |
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362 __ movptr(rax, Address(rbx, Method::method_data_offset())); |
| 1783 | 363 __ testptr(rax, rax); |
| 364 __ jccb(Assembler::zero, no_mdo); | |
| 365 // Increment counter in the MDO | |
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366 const Address mdo_invocation_counter(rax, in_bytes(MethodData::invocation_counter_offset()) + |
| 1783 | 367 in_bytes(InvocationCounter::counter_offset())); |
| 368 __ increment_mask_and_jump(mdo_invocation_counter, increment, mask, rcx, false, Assembler::zero, overflow); | |
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369 __ jmp(done); |
| 1783 | 370 } |
| 371 __ bind(no_mdo); | |
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372 // Increment counter in MethodCounters |
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373 const Address invocation_counter(rax, |
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374 MethodCounters::invocation_counter_offset() + |
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375 InvocationCounter::counter_offset()); |
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376 |
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377 __ get_method_counters(rbx, rax, done); |
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378 __ increment_mask_and_jump(invocation_counter, increment, mask, |
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379 rcx, false, Assembler::zero, overflow); |
| 1783 | 380 __ bind(done); |
| 381 } else { | |
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382 const Address backedge_counter (rax, |
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383 MethodCounters::backedge_counter_offset() + |
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384 InvocationCounter::counter_offset()); |
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385 const Address invocation_counter(rax, |
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386 MethodCounters::invocation_counter_offset() + |
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387 InvocationCounter::counter_offset()); |
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388 |
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389 __ get_method_counters(rbx, rax, done); |
| 0 | 390 |
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391 if (ProfileInterpreter) { |
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392 __ incrementl(Address(rax, |
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393 MethodCounters::interpreter_invocation_counter_offset())); |
| 1783 | 394 } |
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395 |
| 1783 | 396 // Update standard invocation counters |
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397 __ movl(rcx, invocation_counter); |
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398 __ incrementl(rcx, InvocationCounter::count_increment); |
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399 __ movl(invocation_counter, rcx); // save invocation count |
| 1783 | 400 |
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401 __ movl(rax, backedge_counter); // load backedge counter |
| 1783 | 402 __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits |
| 403 | |
| 404 __ addl(rcx, rax); // add both counters | |
| 0 | 405 |
| 1783 | 406 // profile_method is non-null only for interpreted method so |
| 407 // profile_method != NULL == !native_call | |
| 408 // BytecodeInterpreter only calls for native so code is elided. | |
| 409 | |
| 410 if (ProfileInterpreter && profile_method != NULL) { | |
| 411 // Test to see if we should create a method data oop | |
| 412 __ cmp32(rcx, | |
| 413 ExternalAddress((address)&InvocationCounter::InterpreterProfileLimit)); | |
| 414 __ jcc(Assembler::less, *profile_method_continue); | |
| 415 | |
| 416 // if no method data exists, go to profile_method | |
| 417 __ test_method_data_pointer(rax, *profile_method); | |
| 418 } | |
| 419 | |
| 0 | 420 __ cmp32(rcx, |
| 1783 | 421 ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit)); |
| 422 __ jcc(Assembler::aboveEqual, *overflow); | |
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423 __ bind(done); |
| 0 | 424 } |
| 425 } | |
| 426 | |
| 427 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { | |
| 428 | |
| 429 // Asm interpreter on entry | |
| 430 // rdi - locals | |
| 431 // rsi - bcp | |
| 432 // rbx, - method | |
| 433 // rdx - cpool | |
| 434 // rbp, - interpreter frame | |
| 435 | |
| 436 // C++ interpreter on entry | |
| 437 // rsi - new interpreter state pointer | |
| 438 // rbp - interpreter frame pointer | |
| 439 // rbx - method | |
| 440 | |
| 441 // On return (i.e. jump to entry_point) [ back to invocation of interpreter ] | |
| 442 // rbx, - method | |
| 443 // rcx - rcvr (assuming there is one) | |
| 444 // top of stack return address of interpreter caller | |
| 445 // rsp - sender_sp | |
| 446 | |
| 447 // C++ interpreter only | |
| 448 // rsi - previous interpreter state pointer | |
| 449 | |
| 450 // InterpreterRuntime::frequency_counter_overflow takes one argument | |
| 451 // indicating if the counter overflow occurs at a backwards branch (non-NULL bcp). | |
| 452 // The call returns the address of the verified entry point for the method or NULL | |
| 453 // if the compilation did not complete (either went background or bailed out). | |
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454 __ movptr(rax, (intptr_t)false); |
| 0 | 455 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rax); |
| 456 | |
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457 __ movptr(rbx, Address(rbp, method_offset)); // restore Method* |
| 0 | 458 |
| 459 // Preserve invariant that rsi/rdi contain bcp/locals of sender frame | |
| 460 // and jump to the interpreted entry. | |
| 461 __ jmp(*do_continue, relocInfo::none); | |
| 462 | |
| 463 } | |
| 464 | |
| 465 void InterpreterGenerator::generate_stack_overflow_check(void) { | |
| 466 // see if we've got enough room on the stack for locals plus overhead. | |
| 467 // the expression stack grows down incrementally, so the normal guard | |
| 468 // page mechanism will work for that. | |
| 469 // | |
| 470 // Registers live on entry: | |
| 471 // | |
| 472 // Asm interpreter | |
| 473 // rdx: number of additional locals this frame needs (what we must check) | |
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474 // rbx,: Method* |
| 0 | 475 |
| 476 // destroyed on exit | |
| 477 // rax, | |
| 478 | |
| 479 // NOTE: since the additional locals are also always pushed (wasn't obvious in | |
| 480 // generate_method_entry) so the guard should work for them too. | |
| 481 // | |
| 482 | |
| 483 // monitor entry size: see picture of stack set (generate_method_entry) and frame_x86.hpp | |
| 484 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 485 | |
| 486 // total overhead size: entry_size + (saved rbp, thru expr stack bottom). | |
| 487 // be sure to change this if you add/subtract anything to/from the overhead area | |
| 488 const int overhead_size = -(frame::interpreter_frame_initial_sp_offset*wordSize) + entry_size; | |
| 489 | |
| 490 const int page_size = os::vm_page_size(); | |
| 491 | |
| 492 Label after_frame_check; | |
| 493 | |
| 494 // see if the frame is greater than one page in size. If so, | |
| 495 // then we need to verify there is enough stack space remaining | |
| 496 // for the additional locals. | |
| 1506 | 497 __ cmpl(rdx, (page_size - overhead_size)/Interpreter::stackElementSize); |
| 0 | 498 __ jcc(Assembler::belowEqual, after_frame_check); |
| 499 | |
| 500 // compute rsp as if this were going to be the last frame on | |
| 501 // the stack before the red zone | |
| 502 | |
| 503 Label after_frame_check_pop; | |
| 504 | |
| 304 | 505 __ push(rsi); |
| 0 | 506 |
| 507 const Register thread = rsi; | |
| 508 | |
| 509 __ get_thread(thread); | |
| 510 | |
| 511 const Address stack_base(thread, Thread::stack_base_offset()); | |
| 512 const Address stack_size(thread, Thread::stack_size_offset()); | |
| 513 | |
| 514 // locals + overhead, in bytes | |
| 304 | 515 __ lea(rax, Address(noreg, rdx, Interpreter::stackElementScale(), overhead_size)); |
| 0 | 516 |
| 517 #ifdef ASSERT | |
| 518 Label stack_base_okay, stack_size_okay; | |
| 519 // verify that thread stack base is non-zero | |
| 304 | 520 __ cmpptr(stack_base, (int32_t)NULL_WORD); |
| 0 | 521 __ jcc(Assembler::notEqual, stack_base_okay); |
| 522 __ stop("stack base is zero"); | |
| 523 __ bind(stack_base_okay); | |
| 524 // verify that thread stack size is non-zero | |
| 304 | 525 __ cmpptr(stack_size, 0); |
| 0 | 526 __ jcc(Assembler::notEqual, stack_size_okay); |
| 527 __ stop("stack size is zero"); | |
| 528 __ bind(stack_size_okay); | |
| 529 #endif | |
| 530 | |
| 531 // Add stack base to locals and subtract stack size | |
| 304 | 532 __ addptr(rax, stack_base); |
| 533 __ subptr(rax, stack_size); | |
| 0 | 534 |
| 535 // Use the maximum number of pages we might bang. | |
| 536 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages : | |
| 537 (StackRedPages+StackYellowPages); | |
| 304 | 538 __ addptr(rax, max_pages * page_size); |
| 0 | 539 |
| 540 // check against the current stack bottom | |
| 304 | 541 __ cmpptr(rsp, rax); |
| 0 | 542 __ jcc(Assembler::above, after_frame_check_pop); |
| 543 | |
| 304 | 544 __ pop(rsi); // get saved bcp / (c++ prev state ). |
| 0 | 545 |
| 4743 | 546 // Restore sender's sp as SP. This is necessary if the sender's |
| 547 // frame is an extended compiled frame (see gen_c2i_adapter()) | |
| 548 // and safer anyway in case of JSR292 adaptations. | |
| 0 | 549 |
| 4743 | 550 __ pop(rax); // return address must be moved if SP is changed |
| 551 __ mov(rsp, rsi); | |
| 552 __ push(rax); | |
| 553 | |
| 554 // Note: the restored frame is not necessarily interpreted. | |
| 555 // Use the shared runtime version of the StackOverflowError. | |
| 556 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); | |
| 557 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry())); | |
| 0 | 558 // all done with frame size check |
| 559 __ bind(after_frame_check_pop); | |
| 304 | 560 __ pop(rsi); |
| 0 | 561 |
| 562 __ bind(after_frame_check); | |
| 563 } | |
| 564 | |
| 565 // Allocate monitor and lock method (asm interpreter) | |
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566 // rbx, - Method* |
| 0 | 567 // |
| 568 void InterpreterGenerator::lock_method(void) { | |
| 569 // synchronize method | |
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570 const Address access_flags (rbx, Method::access_flags_offset()); |
| 0 | 571 const Address monitor_block_top (rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
| 572 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 573 | |
| 574 #ifdef ASSERT | |
| 575 { Label L; | |
| 576 __ movl(rax, access_flags); | |
| 577 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 578 __ jcc(Assembler::notZero, L); | |
| 579 __ stop("method doesn't need synchronization"); | |
| 580 __ bind(L); | |
| 581 } | |
| 582 #endif // ASSERT | |
| 583 // get synchronization object | |
| 584 { Label done; | |
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585 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
| 0 | 586 __ movl(rax, access_flags); |
| 587 __ testl(rax, JVM_ACC_STATIC); | |
| 304 | 588 __ movptr(rax, Address(rdi, Interpreter::local_offset_in_bytes(0))); // get receiver (assume this is frequent case) |
| 0 | 589 __ jcc(Assembler::zero, done); |
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590 __ movptr(rax, Address(rbx, Method::const_offset())); |
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591 __ movptr(rax, Address(rax, ConstMethod::constants_offset())); |
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592 __ movptr(rax, Address(rax, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 593 __ movptr(rax, Address(rax, mirror_offset)); |
| 0 | 594 __ bind(done); |
| 595 } | |
| 596 // add space for monitor & lock | |
| 304 | 597 __ subptr(rsp, entry_size); // add space for a monitor entry |
| 598 __ movptr(monitor_block_top, rsp); // set new monitor block top | |
| 599 __ movptr(Address(rsp, BasicObjectLock::obj_offset_in_bytes()), rax); // store object | |
| 600 __ mov(rdx, rsp); // object address | |
| 0 | 601 __ lock_object(rdx); |
| 602 } | |
| 603 | |
| 604 // | |
| 605 // Generate a fixed interpreter frame. This is identical setup for interpreted methods | |
| 606 // and for native methods hence the shared code. | |
| 607 | |
| 608 void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { | |
| 609 // initialize fixed part of activation frame | |
| 304 | 610 __ push(rax); // save return address |
| 0 | 611 __ enter(); // save old & set new rbp, |
| 612 | |
| 613 | |
| 304 | 614 __ push(rsi); // set sender sp |
| 615 __ push((int32_t)NULL_WORD); // leave last_sp as null | |
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616 __ movptr(rsi, Address(rbx,Method::const_offset())); // get ConstMethod* |
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617 __ lea(rsi, Address(rsi,ConstMethod::codes_offset())); // get codebase |
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618 __ push(rbx); // save Method* |
| 0 | 619 if (ProfileInterpreter) { |
| 620 Label method_data_continue; | |
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621 __ movptr(rdx, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 622 __ testptr(rdx, rdx); |
| 0 | 623 __ jcc(Assembler::zero, method_data_continue); |
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624 __ addptr(rdx, in_bytes(MethodData::data_offset())); |
| 0 | 625 __ bind(method_data_continue); |
| 304 | 626 __ push(rdx); // set the mdp (method data pointer) |
| 0 | 627 } else { |
| 304 | 628 __ push(0); |
| 0 | 629 } |
| 630 | |
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631 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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632 __ movptr(rdx, Address(rdx, ConstMethod::constants_offset())); |
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633 __ movptr(rdx, Address(rdx, ConstantPool::cache_offset_in_bytes())); |
| 304 | 634 __ push(rdx); // set constant pool cache |
| 635 __ push(rdi); // set locals pointer | |
| 0 | 636 if (native_call) { |
| 304 | 637 __ push(0); // no bcp |
| 0 | 638 } else { |
| 304 | 639 __ push(rsi); // set bcp |
| 0 | 640 } |
| 304 | 641 __ push(0); // reserve word for pointer to expression stack bottom |
| 642 __ movptr(Address(rsp, 0), rsp); // set expression stack bottom | |
| 0 | 643 } |
| 644 | |
| 645 // End of helpers | |
| 646 | |
| 647 // | |
| 648 // Various method entries | |
| 649 //------------------------------------------------------------------------------------------------------------------------ | |
| 650 // | |
| 651 // | |
| 652 | |
| 653 // Call an accessor method (assuming it is resolved, otherwise drop into vanilla (slow path) entry | |
| 654 | |
| 655 address InterpreterGenerator::generate_accessor_entry(void) { | |
| 656 | |
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657 // rbx,: Method* |
| 0 | 658 // rcx: receiver (preserve for slow entry into asm interpreter) |
| 659 | |
| 660 // rsi: senderSP must preserved for slow path, set SP to it on fast path | |
| 661 | |
| 662 address entry_point = __ pc(); | |
| 663 Label xreturn_path; | |
| 664 | |
| 665 // do fastpath for resolved accessor methods | |
| 666 if (UseFastAccessorMethods) { | |
| 667 Label slow_path; | |
| 668 // If we need a safepoint check, generate full interpreter entry. | |
| 669 ExternalAddress state(SafepointSynchronize::address_of_state()); | |
| 670 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 671 SafepointSynchronize::_not_synchronized); | |
| 672 | |
| 673 __ jcc(Assembler::notEqual, slow_path); | |
| 674 // ASM/C++ Interpreter | |
| 675 // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; parameter size = 1 | |
| 676 // Note: We can only use this code if the getfield has been resolved | |
| 677 // and if we don't have a null-pointer exception => check for | |
| 678 // these conditions first and use slow path if necessary. | |
| 679 // rbx,: method | |
| 680 // rcx: receiver | |
| 304 | 681 __ movptr(rax, Address(rsp, wordSize)); |
| 0 | 682 |
| 683 // check if local 0 != NULL and read field | |
| 304 | 684 __ testptr(rax, rax); |
| 0 | 685 __ jcc(Assembler::zero, slow_path); |
| 686 | |
| 687 // read first instruction word and extract bytecode @ 1 and index @ 2 | |
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688 __ movptr(rdx, Address(rbx, Method::const_offset())); |
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689 __ movptr(rdi, Address(rdx, ConstMethod::constants_offset())); |
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690 __ movl(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 0 | 691 // Shift codes right to get the index on the right. |
| 692 // The bytecode fetched looks like <index><0xb4><0x2a> | |
| 693 __ shrl(rdx, 2*BitsPerByte); | |
| 694 __ shll(rdx, exact_log2(in_words(ConstantPoolCacheEntry::size()))); | |
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695 __ movptr(rdi, Address(rdi, ConstantPool::cache_offset_in_bytes())); |
| 0 | 696 |
| 697 // rax,: local 0 | |
| 698 // rbx,: method | |
| 699 // rcx: receiver - do not destroy since it is needed for slow path! | |
| 700 // rcx: scratch | |
| 701 // rdx: constant pool cache index | |
| 702 // rdi: constant pool cache | |
| 703 // rsi: sender sp | |
| 704 | |
| 705 // check if getfield has been resolved and read constant pool cache entry | |
| 706 // check the validity of the cache entry by testing whether _indices field | |
| 707 // contains Bytecode::_getfield in b1 byte. | |
| 708 assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below"); | |
| 709 __ movl(rcx, | |
| 710 Address(rdi, | |
| 711 rdx, | |
|
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712 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset())); |
| 0 | 713 __ shrl(rcx, 2*BitsPerByte); |
| 714 __ andl(rcx, 0xFF); | |
| 715 __ cmpl(rcx, Bytecodes::_getfield); | |
| 716 __ jcc(Assembler::notEqual, slow_path); | |
| 717 | |
| 718 // Note: constant pool entry is not valid before bytecode is resolved | |
| 304 | 719 __ movptr(rcx, |
| 720 Address(rdi, | |
| 721 rdx, | |
|
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722 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset())); |
| 0 | 723 __ movl(rdx, |
| 724 Address(rdi, | |
| 725 rdx, | |
|
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726 Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
| 0 | 727 |
| 728 Label notByte, notShort, notChar; | |
| 729 const Address field_address (rax, rcx, Address::times_1); | |
| 730 | |
| 731 // Need to differentiate between igetfield, agetfield, bgetfield etc. | |
| 732 // because they are different sizes. | |
| 733 // Use the type from the constant pool cache | |
|
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|
734 __ shrl(rdx, ConstantPoolCacheEntry::tos_state_shift); |
|
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|
735 // Make sure we don't need to mask rdx after the above shift |
|
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|
736 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 737 __ cmpl(rdx, btos); |
| 738 __ jcc(Assembler::notEqual, notByte); | |
| 739 __ load_signed_byte(rax, field_address); | |
| 740 __ jmp(xreturn_path); | |
| 741 | |
| 742 __ bind(notByte); | |
| 743 __ cmpl(rdx, stos); | |
| 744 __ jcc(Assembler::notEqual, notShort); | |
|
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|
745 __ load_signed_short(rax, field_address); |
| 0 | 746 __ jmp(xreturn_path); |
| 747 | |
| 748 __ bind(notShort); | |
| 749 __ cmpl(rdx, ctos); | |
| 750 __ jcc(Assembler::notEqual, notChar); | |
|
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|
751 __ load_unsigned_short(rax, field_address); |
| 0 | 752 __ jmp(xreturn_path); |
| 753 | |
| 754 __ bind(notChar); | |
| 755 #ifdef ASSERT | |
| 756 Label okay; | |
| 757 __ cmpl(rdx, atos); | |
| 758 __ jcc(Assembler::equal, okay); | |
| 759 __ cmpl(rdx, itos); | |
| 760 __ jcc(Assembler::equal, okay); | |
| 761 __ stop("what type is this?"); | |
| 762 __ bind(okay); | |
| 763 #endif // ASSERT | |
| 764 // All the rest are a 32 bit wordsize | |
| 304 | 765 // This is ok for now. Since fast accessors should be going away |
| 766 __ movptr(rax, field_address); | |
| 0 | 767 |
| 768 __ bind(xreturn_path); | |
| 769 | |
| 770 // _ireturn/_areturn | |
| 304 | 771 __ pop(rdi); // get return address |
| 772 __ mov(rsp, rsi); // set sp to sender sp | |
| 0 | 773 __ jmp(rdi); |
| 774 | |
| 775 // generate a vanilla interpreter entry as the slow path | |
| 776 __ bind(slow_path); | |
| 777 | |
| 778 (void) generate_normal_entry(false); | |
| 779 return entry_point; | |
| 780 } | |
| 781 return NULL; | |
| 782 | |
| 783 } | |
| 784 | |
|
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|
785 // Method entry for java.lang.ref.Reference.get. |
|
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|
786 address InterpreterGenerator::generate_Reference_get_entry(void) { |
|
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787 #if INCLUDE_ALL_GCS |
|
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|
788 // Code: _aload_0, _getfield, _areturn |
|
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789 // parameter size = 1 |
|
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790 // |
|
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791 // The code that gets generated by this routine is split into 2 parts: |
|
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792 // 1. The "intrinsified" code for G1 (or any SATB based GC), |
|
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793 // 2. The slow path - which is an expansion of the regular method entry. |
|
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794 // |
|
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|
795 // Notes:- |
|
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796 // * In the G1 code we do not check whether we need to block for |
|
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797 // a safepoint. If G1 is enabled then we must execute the specialized |
|
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|
798 // code for Reference.get (except when the Reference object is null) |
|
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799 // so that we can log the value in the referent field with an SATB |
|
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|
800 // update buffer. |
|
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|
801 // If the code for the getfield template is modified so that the |
|
e1162778c1c8
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|
802 // G1 pre-barrier code is executed when the current method is |
|
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|
803 // Reference.get() then going through the normal method entry |
|
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|
804 // will be fine. |
|
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|
805 // * The G1 code below can, however, check the receiver object (the instance |
|
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|
806 // of java.lang.Reference) and jump to the slow path if null. If the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
807 // 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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|
808 // and so we don't need to call the G1 pre-barrier. Thus we can use the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
809 // regular method entry code to generate the NPE. |
|
e1162778c1c8
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|
810 // |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
811 // This code is based on generate_accessor_enty. |
|
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|
812 |
|
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|
813 // rbx,: Method* |
|
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|
814 // rcx: receiver (preserve for slow entry into asm interpreter) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
815 |
|
e1162778c1c8
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|
816 // rsi: senderSP must preserved for slow path, set SP to it on fast path |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
817 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
818 address entry = __ pc(); |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
819 |
|
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
820 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
e1162778c1c8
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|
821 guarantee(referent_offset > 0, "referent offset not initialized"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
822 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
823 if (UseG1GC) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
824 Label slow_path; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
825 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
826 // Check if local 0 != NULL |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
827 // If the receiver is null then it is OK to jump to the slow path. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
828 __ movptr(rax, Address(rsp, wordSize)); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
829 __ testptr(rax, rax); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
830 __ jcc(Assembler::zero, slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
831 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
832 // rax: local 0 (must be preserved across the G1 barrier call) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
833 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
834 // rbx: method (at this point it's scratch) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
835 // rcx: receiver (at this point it's scratch) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
836 // rdx: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
837 // rdi: scratch |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
838 // |
|
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|
839 // rsi: sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
840 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
841 // Preserve the sender sp in case the pre-barrier |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
842 // calls the runtime |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
843 __ push(rsi); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
844 |
|
e1162778c1c8
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|
845 // Load the value of the referent field. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
846 const Address field_address(rax, referent_offset); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
847 __ movptr(rax, field_address); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
848 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
849 // Generate the G1 pre-barrier code to log the value of |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
850 // the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
851 __ get_thread(rcx); |
|
e1162778c1c8
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|
852 __ g1_write_barrier_pre(noreg /* obj */, |
|
e1162778c1c8
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|
853 rax /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
854 rcx /* thread */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
855 rbx /* tmp */, |
|
e1162778c1c8
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|
856 true /* tosca_save */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
857 true /* expand_call */); |
|
e1162778c1c8
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|
858 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
859 // _areturn |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
860 __ pop(rsi); // get sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
861 __ pop(rdi); // get return address |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
862 __ mov(rsp, rsi); // set sp to sender sp |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
863 __ jmp(rdi); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
864 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
865 __ bind(slow_path); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
866 (void) generate_normal_entry(false); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
867 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
868 return entry; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
869 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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7402
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|
870 #endif // INCLUDE_ALL_GCS |
|
3249
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|
871 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
872 // 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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diff
changeset
|
873 // Reference.get is an accessor |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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changeset
|
874 return generate_accessor_entry(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
875 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff
changeset
|
876 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
877 /** |
|
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changeset
|
878 * Method entry for static native methods: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
879 * int java.util.zip.CRC32.update(int crc, int b) |
|
b800986664f4
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|
880 */ |
|
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changeset
|
881 address InterpreterGenerator::generate_CRC32_update_entry() { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
882 if (UseCRC32Intrinsics) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
883 address entry = __ pc(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
884 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
885 // rbx,: Method* |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
886 // rsi: senderSP must preserved for slow path, set SP to it on fast path |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
887 // rdx: scratch |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
888 // rdi: scratch |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
889 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
890 Label slow_path; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
891 // If we need a safepoint check, generate full interpreter entry. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
892 ExternalAddress state(SafepointSynchronize::address_of_state()); |
|
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
893 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
894 SafepointSynchronize::_not_synchronized); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
895 __ jcc(Assembler::notEqual, slow_path); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
896 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
897 // We don't generate local frame and don't align stack because |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
898 // we call stub code and there is no safepoint on this path. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
899 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
900 // Load parameters |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
901 const Register crc = rax; // crc |
|
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
902 const Register val = rdx; // source java byte value |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
903 const Register tbl = rdi; // scratch |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
904 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
905 // Arguments are reversed on java expression stack |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
906 __ movl(val, Address(rsp, wordSize)); // byte value |
|
b800986664f4
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|
907 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
908 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
909 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr())); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
910 __ notl(crc); // ~crc |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
911 __ update_byte_crc32(crc, val, tbl); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
912 __ notl(crc); // ~crc |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
913 // result in rax |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
914 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
915 // _areturn |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
916 __ pop(rdi); // get return address |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
917 __ mov(rsp, rsi); // set sp to sender sp |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
918 __ jmp(rdi); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
919 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
920 // generate a vanilla native entry as the slow path |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
921 __ bind(slow_path); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
922 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
923 (void) generate_native_entry(false); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
924 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
925 return entry; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
926 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
927 return generate_native_entry(false); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
928 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
929 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
930 /** |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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parents:
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diff
changeset
|
931 * Method entry for static native methods: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
932 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
933 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
934 */ |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
935 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
936 if (UseCRC32Intrinsics) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
937 address entry = __ pc(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
938 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
939 // rbx,: Method* |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
940 // rsi: senderSP must preserved for slow path, set SP to it on fast path |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
941 // rdx: scratch |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
942 // rdi: scratch |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
943 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
944 Label slow_path; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
945 // If we need a safepoint check, generate full interpreter entry. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
946 ExternalAddress state(SafepointSynchronize::address_of_state()); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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changeset
|
947 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
948 SafepointSynchronize::_not_synchronized); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
949 __ jcc(Assembler::notEqual, slow_path); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
950 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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parents:
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diff
changeset
|
951 // We don't generate local frame and don't align stack because |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10393
diff
changeset
|
952 // we call stub code and there is no safepoint on this path. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
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diff
changeset
|
953 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
954 // Load parameters |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
955 const Register crc = rax; // crc |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
956 const Register buf = rdx; // source java byte array address |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
957 const Register len = rdi; // length |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
958 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
959 // Arguments are reversed on java expression stack |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
960 __ movl(len, Address(rsp, wordSize)); // Length |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
961 // Calculate address of start element |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
962 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
963 __ movptr(buf, Address(rsp, 3*wordSize)); // long buf |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
964 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
965 __ movl(crc, Address(rsp, 5*wordSize)); // Initial CRC |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
966 } else { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
967 __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
968 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
969 __ addptr(buf, Address(rsp, 2*wordSize)); // + offset |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
970 __ movl(crc, Address(rsp, 4*wordSize)); // Initial CRC |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
971 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
972 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
973 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
974 // result in rax |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
975 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
976 // _areturn |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
977 __ pop(rdi); // get return address |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
978 __ mov(rsp, rsi); // set sp to sender sp |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
979 __ jmp(rdi); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
980 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
981 // generate a vanilla native entry as the slow path |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
982 __ bind(slow_path); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
983 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
984 (void) generate_native_entry(false); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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986 return entry; |
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987 } |
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988 return generate_native_entry(false); |
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989 } |
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990 |
| 0 | 991 // |
| 992 // Interpreter stub for calling a native method. (asm interpreter) | |
| 993 // This sets up a somewhat different looking stack for calling the native method | |
| 994 // than the typical interpreter frame setup. | |
| 995 // | |
| 996 | |
| 997 address InterpreterGenerator::generate_native_entry(bool synchronized) { | |
| 998 // determine code generation flags | |
| 999 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1000 | |
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1001 // rbx,: Method* |
| 0 | 1002 // rsi: sender sp |
| 1003 // rsi: previous interpreter state (C++ interpreter) must preserve | |
| 1004 address entry_point = __ pc(); | |
| 1005 | |
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1006 const Address constMethod (rbx, Method::const_offset()); |
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1007 const Address access_flags (rbx, Method::access_flags_offset()); |
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1008 const Address size_of_parameters(rcx, ConstMethod::size_of_parameters_offset()); |
| 0 | 1009 |
| 1010 // get parameter size (always needed) | |
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1011 __ movptr(rcx, constMethod); |
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1012 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1013 |
| 1014 // native calls don't need the stack size check since they have no expression stack | |
| 1015 // and the arguments are already on the stack and we only add a handful of words | |
| 1016 // to the stack | |
| 1017 | |
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1018 // rbx,: Method* |
| 0 | 1019 // rcx: size of parameters |
| 1020 // rsi: sender sp | |
| 1021 | |
| 304 | 1022 __ pop(rax); // get return address |
| 0 | 1023 // for natives the size of locals is zero |
| 1024 | |
| 1025 // compute beginning of parameters (rdi) | |
| 304 | 1026 __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize)); |
| 0 | 1027 |
| 1028 | |
| 1029 // add 2 zero-initialized slots for native calls | |
| 1030 // NULL result handler | |
| 304 | 1031 __ push((int32_t)NULL_WORD); |
| 0 | 1032 // NULL oop temp (mirror or jni oop result) |
| 304 | 1033 __ push((int32_t)NULL_WORD); |
| 0 | 1034 |
| 1035 // initialize fixed part of activation frame | |
| 1036 generate_fixed_frame(true); | |
| 1037 | |
| 1038 // make sure method is native & not abstract | |
| 1039 #ifdef ASSERT | |
| 1040 __ movl(rax, access_flags); | |
| 1041 { | |
| 1042 Label L; | |
| 1043 __ testl(rax, JVM_ACC_NATIVE); | |
| 1044 __ jcc(Assembler::notZero, L); | |
| 1045 __ stop("tried to execute non-native method as native"); | |
| 1046 __ bind(L); | |
| 1047 } | |
| 1048 { Label L; | |
| 1049 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1050 __ jcc(Assembler::zero, L); | |
| 1051 __ stop("tried to execute abstract method in interpreter"); | |
| 1052 __ bind(L); | |
| 1053 } | |
| 1054 #endif | |
| 1055 | |
| 1056 // Since at this point in the method invocation the exception handler | |
| 1057 // would try to exit the monitor of synchronized methods which hasn't | |
| 1058 // been entered yet, we set the thread local variable | |
| 1059 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 1060 // check this flag. | |
| 1061 | |
| 1062 __ get_thread(rax); | |
| 1063 const Address do_not_unlock_if_synchronized(rax, | |
| 1064 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1065 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1066 | |
| 1067 // increment invocation count & check for overflow | |
| 1068 Label invocation_counter_overflow; | |
| 1069 if (inc_counter) { | |
| 1070 generate_counter_incr(&invocation_counter_overflow, NULL, NULL); | |
| 1071 } | |
| 1072 | |
| 1073 Label continue_after_compile; | |
| 1074 __ bind(continue_after_compile); | |
| 1075 | |
| 1076 bang_stack_shadow_pages(true); | |
| 1077 | |
| 1078 // reset the _do_not_unlock_if_synchronized flag | |
| 1079 __ get_thread(rax); | |
| 1080 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1081 | |
| 1082 // check for synchronized methods | |
| 1083 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1084 // so method is not locked if overflows. | |
| 1085 // | |
| 1086 if (synchronized) { | |
| 1087 lock_method(); | |
| 1088 } else { | |
| 1089 // no synchronization necessary | |
| 1090 #ifdef ASSERT | |
| 1091 { Label L; | |
| 1092 __ movl(rax, access_flags); | |
| 1093 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1094 __ jcc(Assembler::zero, L); | |
| 1095 __ stop("method needs synchronization"); | |
| 1096 __ bind(L); | |
| 1097 } | |
| 1098 #endif | |
| 1099 } | |
| 1100 | |
| 1101 // start execution | |
| 1102 #ifdef ASSERT | |
| 1103 { Label L; | |
| 1104 const Address monitor_block_top (rbp, | |
| 1105 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1106 __ movptr(rax, monitor_block_top); |
| 1107 __ cmpptr(rax, rsp); | |
| 0 | 1108 __ jcc(Assembler::equal, L); |
| 1109 __ stop("broken stack frame setup in interpreter"); | |
| 1110 __ bind(L); | |
| 1111 } | |
| 1112 #endif | |
| 1113 | |
| 1114 // jvmti/dtrace support | |
| 1115 __ notify_method_entry(); | |
| 1116 | |
| 1117 // work registers | |
| 1118 const Register method = rbx; | |
| 1119 const Register thread = rdi; | |
| 1120 const Register t = rcx; | |
| 1121 | |
| 1122 // allocate space for parameters | |
| 1123 __ get_method(method); | |
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1124 __ movptr(t, Address(method, Method::const_offset())); |
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1125 __ load_unsigned_short(t, Address(t, ConstMethod::size_of_parameters_offset())); |
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1126 |
| 1506 | 1127 __ shlptr(t, Interpreter::logStackElementSize); |
| 304 | 1128 __ addptr(t, 2*wordSize); // allocate two more slots for JNIEnv and possible mirror |
| 1129 __ subptr(rsp, t); | |
| 1130 __ andptr(rsp, -(StackAlignmentInBytes)); // gcc needs 16 byte aligned stacks to do XMM intrinsics | |
| 0 | 1131 |
| 1132 // get signature handler | |
| 1133 { Label L; | |
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1134 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 304 | 1135 __ testptr(t, t); |
| 0 | 1136 __ jcc(Assembler::notZero, L); |
| 1137 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method); | |
| 1138 __ get_method(method); | |
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1139 __ movptr(t, Address(method, Method::signature_handler_offset())); |
| 0 | 1140 __ bind(L); |
| 1141 } | |
| 1142 | |
| 1143 // call signature handler | |
| 1144 assert(InterpreterRuntime::SignatureHandlerGenerator::from() == rdi, "adjust this code"); | |
| 1145 assert(InterpreterRuntime::SignatureHandlerGenerator::to () == rsp, "adjust this code"); | |
| 1146 assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == t , "adjust this code"); | |
| 1147 // The generated handlers do not touch RBX (the method oop). | |
| 1148 // However, large signatures cannot be cached and are generated | |
| 1149 // each time here. The slow-path generator will blow RBX | |
| 1150 // sometime, so we must reload it after the call. | |
| 1151 __ call(t); | |
| 1152 __ get_method(method); // slow path call blows RBX on DevStudio 5.0 | |
| 1153 | |
| 1154 // result handler is in rax, | |
| 1155 // set result handler | |
| 304 | 1156 __ movptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize), rax); |
| 0 | 1157 |
| 1158 // pass mirror handle if static call | |
| 1159 { Label L; | |
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1160 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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1161 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1162 __ testl(t, JVM_ACC_STATIC); |
| 1163 __ jcc(Assembler::zero, L); | |
| 1164 // get mirror | |
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1165 __ movptr(t, Address(method, Method:: const_offset())); |
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1166 __ movptr(t, Address(t, ConstMethod::constants_offset())); |
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1167 __ movptr(t, Address(t, ConstantPool::pool_holder_offset_in_bytes())); |
| 304 | 1168 __ movptr(t, Address(t, mirror_offset)); |
| 0 | 1169 // copy mirror into activation frame |
| 304 | 1170 __ movptr(Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize), t); |
| 0 | 1171 // pass handle to mirror |
| 304 | 1172 __ lea(t, Address(rbp, frame::interpreter_frame_oop_temp_offset * wordSize)); |
| 1173 __ movptr(Address(rsp, wordSize), t); | |
| 0 | 1174 __ bind(L); |
| 1175 } | |
| 1176 | |
| 1177 // get native function entry point | |
| 1178 { Label L; | |
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1179 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1180 ExternalAddress unsatisfied(SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
| 304 | 1181 __ cmpptr(rax, unsatisfied.addr()); |
| 0 | 1182 __ jcc(Assembler::notEqual, L); |
| 1183 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method); | |
| 1184 __ get_method(method); | |
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1185 __ movptr(rax, Address(method, Method::native_function_offset())); |
| 0 | 1186 __ bind(L); |
| 1187 } | |
| 1188 | |
| 1189 // pass JNIEnv | |
| 1190 __ get_thread(thread); | |
| 304 | 1191 __ lea(t, Address(thread, JavaThread::jni_environment_offset())); |
| 1192 __ movptr(Address(rsp, 0), t); | |
| 0 | 1193 |
| 1194 // set_last_Java_frame_before_call | |
| 1195 // It is enough that the pc() | |
| 1196 // points into the right code segment. It does not have to be the correct return pc. | |
| 1197 __ set_last_Java_frame(thread, noreg, rbp, __ pc()); | |
| 1198 | |
| 1199 // change thread state | |
| 1200 #ifdef ASSERT | |
| 1201 { Label L; | |
| 1202 __ movl(t, Address(thread, JavaThread::thread_state_offset())); | |
| 1203 __ cmpl(t, _thread_in_Java); | |
| 1204 __ jcc(Assembler::equal, L); | |
| 1205 __ stop("Wrong thread state in native stub"); | |
| 1206 __ bind(L); | |
| 1207 } | |
| 1208 #endif | |
| 1209 | |
| 1210 // Change state to native | |
| 1211 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native); | |
| 1212 __ call(rax); | |
| 1213 | |
| 1214 // result potentially in rdx:rax or ST0 | |
| 1215 | |
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1216 // Verify or restore cpu control state after JNI call |
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1217 __ restore_cpu_control_state_after_jni(); |
| 0 | 1218 |
| 1219 // save potential result in ST(0) & rdx:rax | |
| 1220 // (if result handler is the T_FLOAT or T_DOUBLE handler, result must be in ST0 - | |
| 1221 // the check is necessary to avoid potential Intel FPU overflow problems by saving/restoring 'empty' FPU registers) | |
| 1222 // It is safe to do this push because state is _thread_in_native and return address will be found | |
| 1223 // via _last_native_pc and not via _last_jave_sp | |
| 1224 | |
| 1225 // NOTE: the order of theses push(es) is known to frame::interpreter_frame_result. | |
| 1226 // If the order changes or anything else is added to the stack the code in | |
| 1227 // interpreter_frame_result will have to be changed. | |
| 1228 | |
| 1229 { Label L; | |
| 1230 Label push_double; | |
| 1231 ExternalAddress float_handler(AbstractInterpreter::result_handler(T_FLOAT)); | |
| 1232 ExternalAddress double_handler(AbstractInterpreter::result_handler(T_DOUBLE)); | |
| 1233 __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize), | |
| 1234 float_handler.addr()); | |
| 1235 __ jcc(Assembler::equal, push_double); | |
| 1236 __ cmpptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset + 1)*wordSize), | |
| 1237 double_handler.addr()); | |
| 1238 __ jcc(Assembler::notEqual, L); | |
| 1239 __ bind(push_double); | |
| 1240 __ push(dtos); | |
| 1241 __ bind(L); | |
| 1242 } | |
| 1243 __ push(ltos); | |
| 1244 | |
| 1245 // change thread state | |
| 1246 __ get_thread(thread); | |
| 1247 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_native_trans); | |
| 1248 if(os::is_MP()) { | |
| 1249 if (UseMembar) { | |
| 304 | 1250 // Force this write out before the read below |
| 1251 __ membar(Assembler::Membar_mask_bits( | |
| 1252 Assembler::LoadLoad | Assembler::LoadStore | | |
| 1253 Assembler::StoreLoad | Assembler::StoreStore)); | |
| 0 | 1254 } else { |
| 1255 // Write serialization page so VM thread can do a pseudo remote membar. | |
| 1256 // We use the current thread pointer to calculate a thread specific | |
| 1257 // offset to write to within the page. This minimizes bus traffic | |
| 1258 // due to cache line collision. | |
| 1259 __ serialize_memory(thread, rcx); | |
| 1260 } | |
| 1261 } | |
| 1262 | |
| 1263 if (AlwaysRestoreFPU) { | |
| 1264 // Make sure the control word is correct. | |
| 1265 __ fldcw(ExternalAddress(StubRoutines::addr_fpu_cntrl_wrd_std())); | |
| 1266 } | |
| 1267 | |
| 1268 // check for safepoint operation in progress and/or pending suspend requests | |
| 1269 { Label Continue; | |
| 1270 | |
| 1271 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 1272 SafepointSynchronize::_not_synchronized); | |
| 1273 | |
| 1274 Label L; | |
| 1275 __ jcc(Assembler::notEqual, L); | |
| 1276 __ cmpl(Address(thread, JavaThread::suspend_flags_offset()), 0); | |
| 1277 __ jcc(Assembler::equal, Continue); | |
| 1278 __ bind(L); | |
| 1279 | |
| 1280 // Don't use call_VM as it will see a possible pending exception and forward it | |
| 1281 // and never return here preventing us from clearing _last_native_pc down below. | |
| 1282 // Also can't use call_VM_leaf either as it will check to see if rsi & rdi are | |
| 1283 // preserved and correspond to the bcp/locals pointers. So we do a runtime call | |
| 1284 // by hand. | |
| 1285 // | |
| 304 | 1286 __ push(thread); |
| 0 | 1287 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, |
| 1288 JavaThread::check_special_condition_for_native_trans))); | |
| 1289 __ increment(rsp, wordSize); | |
| 1290 __ get_thread(thread); | |
| 1291 | |
| 1292 __ bind(Continue); | |
| 1293 } | |
| 1294 | |
| 1295 // change thread state | |
| 1296 __ movl(Address(thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
| 1297 | |
| 1298 __ reset_last_Java_frame(thread, true, true); | |
| 1299 | |
| 1300 // reset handle block | |
| 304 | 1301 __ movptr(t, Address(thread, JavaThread::active_handles_offset())); |
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1302 __ movptr(Address(t, JNIHandleBlock::top_offset_in_bytes()), NULL_WORD); |
| 0 | 1303 |
| 1304 // If result was an oop then unbox and save it in the frame | |
| 1305 { Label L; | |
| 1306 Label no_oop, store_result; | |
| 1307 ExternalAddress handler(AbstractInterpreter::result_handler(T_OBJECT)); | |
| 1308 __ cmpptr(Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize), | |
| 1309 handler.addr()); | |
| 1310 __ jcc(Assembler::notEqual, no_oop); | |
| 304 | 1311 __ cmpptr(Address(rsp, 0), (int32_t)NULL_WORD); |
| 0 | 1312 __ pop(ltos); |
| 304 | 1313 __ testptr(rax, rax); |
| 0 | 1314 __ jcc(Assembler::zero, store_result); |
| 1315 // unbox | |
| 304 | 1316 __ movptr(rax, Address(rax, 0)); |
| 0 | 1317 __ bind(store_result); |
| 304 | 1318 __ movptr(Address(rbp, (frame::interpreter_frame_oop_temp_offset)*wordSize), rax); |
| 0 | 1319 // keep stack depth as expected by pushing oop which will eventually be discarded |
| 1320 __ push(ltos); | |
| 1321 __ bind(no_oop); | |
| 1322 } | |
| 1323 | |
| 1324 { | |
| 1325 Label no_reguard; | |
| 1326 __ cmpl(Address(thread, JavaThread::stack_guard_state_offset()), JavaThread::stack_guard_yellow_disabled); | |
| 1327 __ jcc(Assembler::notEqual, no_reguard); | |
| 1328 | |
| 304 | 1329 __ pusha(); |
| 0 | 1330 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
| 304 | 1331 __ popa(); |
| 0 | 1332 |
| 1333 __ bind(no_reguard); | |
| 1334 } | |
| 1335 | |
| 1336 // restore rsi to have legal interpreter frame, | |
| 1337 // i.e., bci == 0 <=> rsi == code_base() | |
| 1338 // Can't call_VM until bcp is within reasonable. | |
| 1339 __ get_method(method); // method is junk from thread_in_native to now. | |
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1340 __ movptr(rsi, Address(method,Method::const_offset())); // get ConstMethod* |
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1341 __ lea(rsi, Address(rsi,ConstMethod::codes_offset())); // get codebase |
| 0 | 1342 |
| 1343 // handle exceptions (exception handling will handle unlocking!) | |
| 1344 { Label L; | |
| 304 | 1345 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 1346 __ jcc(Assembler::zero, L); |
| 1347 // Note: At some point we may want to unify this with the code used in call_VM_base(); | |
| 1348 // i.e., we should use the StubRoutines::forward_exception code. For now this | |
| 1349 // doesn't work here because the rsp is not correctly set at this point. | |
| 1350 __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); | |
| 1351 __ should_not_reach_here(); | |
| 1352 __ bind(L); | |
| 1353 } | |
| 1354 | |
| 1355 // do unlocking if necessary | |
| 1356 { Label L; | |
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1357 __ movl(t, Address(method, Method::access_flags_offset())); |
| 0 | 1358 __ testl(t, JVM_ACC_SYNCHRONIZED); |
| 1359 __ jcc(Assembler::zero, L); | |
| 1360 // the code below should be shared with interpreter macro assembler implementation | |
| 1361 { Label unlock; | |
| 1362 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
| 1363 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
| 1364 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
| 1365 | |
| 304 | 1366 __ lea(rdx, monitor); // address of first monitor |
| 0 | 1367 |
| 304 | 1368 __ movptr(t, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
| 1369 __ testptr(t, t); | |
| 0 | 1370 __ jcc(Assembler::notZero, unlock); |
| 1371 | |
| 1372 // Entry already unlocked, need to throw exception | |
| 1373 __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 1374 __ should_not_reach_here(); | |
| 1375 | |
| 1376 __ bind(unlock); | |
| 1377 __ unlock_object(rdx); | |
| 1378 } | |
| 1379 __ bind(L); | |
| 1380 } | |
| 1381 | |
| 1382 // jvmti/dtrace support | |
| 1383 // Note: This must happen _after_ handling/throwing any exceptions since | |
| 1384 // the exception handler code notifies the runtime of method exits | |
| 1385 // too. If this happens before, method entry/exit notifications are | |
| 1386 // not properly paired (was bug - gri 11/22/99). | |
| 1387 __ notify_method_exit(vtos, InterpreterMacroAssembler::NotifyJVMTI); | |
| 1388 | |
| 1389 // restore potential result in rdx:rax, call result handler to restore potential result in ST0 & handle result | |
| 1390 __ pop(ltos); | |
| 304 | 1391 __ movptr(t, Address(rbp, frame::interpreter_frame_result_handler_offset*wordSize)); |
| 0 | 1392 __ call(t); |
| 1393 | |
| 1394 // remove activation | |
| 304 | 1395 __ movptr(t, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1396 __ leave(); // remove frame anchor |
| 304 | 1397 __ pop(rdi); // get return address |
| 1398 __ mov(rsp, t); // set sp to sender sp | |
| 0 | 1399 __ jmp(rdi); |
| 1400 | |
| 1401 if (inc_counter) { | |
| 1402 // Handle overflow of counter and compile method | |
| 1403 __ bind(invocation_counter_overflow); | |
| 1404 generate_counter_overflow(&continue_after_compile); | |
| 1405 } | |
| 1406 | |
| 1407 return entry_point; | |
| 1408 } | |
| 1409 | |
| 1410 // | |
| 1411 // Generic interpreted method entry to (asm) interpreter | |
| 1412 // | |
| 1413 address InterpreterGenerator::generate_normal_entry(bool synchronized) { | |
| 1414 // determine code generation flags | |
| 1415 bool inc_counter = UseCompiler || CountCompiledCalls; | |
| 1416 | |
|
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1417 // rbx,: Method* |
| 0 | 1418 // rsi: sender sp |
| 1419 address entry_point = __ pc(); | |
| 1420 | |
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1421 const Address constMethod (rbx, Method::const_offset()); |
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1422 const Address access_flags (rbx, Method::access_flags_offset()); |
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1423 const Address size_of_parameters(rdx, ConstMethod::size_of_parameters_offset()); |
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1424 const Address size_of_locals (rdx, ConstMethod::size_of_locals_offset()); |
| 0 | 1425 |
| 1426 // get parameter size (always needed) | |
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1427 __ movptr(rdx, constMethod); |
|
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1428 __ load_unsigned_short(rcx, size_of_parameters); |
| 0 | 1429 |
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1430 // rbx,: Method* |
| 0 | 1431 // rcx: size of parameters |
| 1432 | |
| 1433 // rsi: sender_sp (could differ from sp+wordSize if we were called via c2i ) | |
| 1434 | |
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1435 __ load_unsigned_short(rdx, size_of_locals); // get size of locals in words |
| 0 | 1436 __ subl(rdx, rcx); // rdx = no. of additional locals |
| 1437 | |
| 1438 // see if we've got enough room on the stack for locals plus overhead. | |
| 1439 generate_stack_overflow_check(); | |
| 1440 | |
| 1441 // get return address | |
| 304 | 1442 __ pop(rax); |
| 0 | 1443 |
| 1444 // compute beginning of parameters (rdi) | |
| 304 | 1445 __ lea(rdi, Address(rsp, rcx, Interpreter::stackElementScale(), -wordSize)); |
| 0 | 1446 |
| 1447 // rdx - # of additional locals | |
| 1448 // allocate space for locals | |
| 1449 // explicitly initialize locals | |
| 1450 { | |
| 1451 Label exit, loop; | |
| 1452 __ testl(rdx, rdx); | |
| 1453 __ jcc(Assembler::lessEqual, exit); // do nothing if rdx <= 0 | |
| 1454 __ bind(loop); | |
| 304 | 1455 __ push((int32_t)NULL_WORD); // initialize local variables |
| 0 | 1456 __ decrement(rdx); // until everything initialized |
| 1457 __ jcc(Assembler::greater, loop); | |
| 1458 __ bind(exit); | |
| 1459 } | |
| 1460 | |
| 1461 // initialize fixed part of activation frame | |
| 1462 generate_fixed_frame(false); | |
| 1463 | |
| 1464 // make sure method is not native & not abstract | |
| 1465 #ifdef ASSERT | |
| 1466 __ movl(rax, access_flags); | |
| 1467 { | |
| 1468 Label L; | |
| 1469 __ testl(rax, JVM_ACC_NATIVE); | |
| 1470 __ jcc(Assembler::zero, L); | |
| 1471 __ stop("tried to execute native method as non-native"); | |
| 1472 __ bind(L); | |
| 1473 } | |
| 1474 { Label L; | |
| 1475 __ testl(rax, JVM_ACC_ABSTRACT); | |
| 1476 __ jcc(Assembler::zero, L); | |
| 1477 __ stop("tried to execute abstract method in interpreter"); | |
| 1478 __ bind(L); | |
| 1479 } | |
| 1480 #endif | |
| 1481 | |
| 1482 // Since at this point in the method invocation the exception handler | |
| 1483 // would try to exit the monitor of synchronized methods which hasn't | |
| 1484 // been entered yet, we set the thread local variable | |
| 1485 // _do_not_unlock_if_synchronized to true. The remove_activation will | |
| 1486 // check this flag. | |
| 1487 | |
| 1488 __ get_thread(rax); | |
| 1489 const Address do_not_unlock_if_synchronized(rax, | |
| 1490 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 1491 __ movbool(do_not_unlock_if_synchronized, true); | |
| 1492 | |
|
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1493 __ profile_parameters_type(rax, rcx, rdx); |
| 0 | 1494 // increment invocation count & check for overflow |
| 1495 Label invocation_counter_overflow; | |
| 1496 Label profile_method; | |
| 1497 Label profile_method_continue; | |
| 1498 if (inc_counter) { | |
| 1499 generate_counter_incr(&invocation_counter_overflow, &profile_method, &profile_method_continue); | |
| 1500 if (ProfileInterpreter) { | |
| 1501 __ bind(profile_method_continue); | |
| 1502 } | |
| 1503 } | |
| 1504 Label continue_after_compile; | |
| 1505 __ bind(continue_after_compile); | |
| 1506 | |
| 1507 bang_stack_shadow_pages(false); | |
| 1508 | |
| 1509 // reset the _do_not_unlock_if_synchronized flag | |
| 1510 __ get_thread(rax); | |
| 1511 __ movbool(do_not_unlock_if_synchronized, false); | |
| 1512 | |
| 1513 // check for synchronized methods | |
| 1514 // Must happen AFTER invocation_counter check and stack overflow check, | |
| 1515 // so method is not locked if overflows. | |
| 1516 // | |
| 1517 if (synchronized) { | |
| 1518 // Allocate monitor and lock method | |
| 1519 lock_method(); | |
| 1520 } else { | |
| 1521 // no synchronization necessary | |
| 1522 #ifdef ASSERT | |
| 1523 { Label L; | |
| 1524 __ movl(rax, access_flags); | |
| 1525 __ testl(rax, JVM_ACC_SYNCHRONIZED); | |
| 1526 __ jcc(Assembler::zero, L); | |
| 1527 __ stop("method needs synchronization"); | |
| 1528 __ bind(L); | |
| 1529 } | |
| 1530 #endif | |
| 1531 } | |
| 1532 | |
| 1533 // start execution | |
| 1534 #ifdef ASSERT | |
| 1535 { Label L; | |
| 1536 const Address monitor_block_top (rbp, | |
| 1537 frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 304 | 1538 __ movptr(rax, monitor_block_top); |
| 1539 __ cmpptr(rax, rsp); | |
| 0 | 1540 __ jcc(Assembler::equal, L); |
| 1541 __ stop("broken stack frame setup in interpreter"); | |
| 1542 __ bind(L); | |
| 1543 } | |
| 1544 #endif | |
| 1545 | |
| 1546 // jvmti support | |
| 1547 __ notify_method_entry(); | |
| 1548 | |
| 1549 __ dispatch_next(vtos); | |
| 1550 | |
| 1551 // invocation counter overflow | |
| 1552 if (inc_counter) { | |
| 1553 if (ProfileInterpreter) { | |
| 1554 // We have decided to profile this method in the interpreter | |
| 1555 __ bind(profile_method); | |
|
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1556 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
|
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1557 __ set_method_data_pointer_for_bcp(); |
|
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|
1558 __ get_method(rbx); |
| 0 | 1559 __ jmp(profile_method_continue); |
| 1560 } | |
| 1561 // Handle overflow of counter and compile method | |
| 1562 __ bind(invocation_counter_overflow); | |
| 1563 generate_counter_overflow(&continue_after_compile); | |
| 1564 } | |
| 1565 | |
| 1566 return entry_point; | |
| 1567 } | |
| 1568 | |
| 1569 //------------------------------------------------------------------------------------------------------------------------ | |
| 1570 // Entry points | |
| 1571 // | |
| 1572 // Here we generate the various kind of entries into the interpreter. | |
| 1573 // The two main entry type are generic bytecode methods and native call method. | |
| 1574 // These both come in synchronized and non-synchronized versions but the | |
| 1575 // frame layout they create is very similar. The other method entry | |
| 1576 // types are really just special purpose entries that are really entry | |
| 1577 // and interpretation all in one. These are for trivial methods like | |
| 1578 // accessor, empty, or special math methods. | |
| 1579 // | |
| 1580 // When control flow reaches any of the entry types for the interpreter | |
| 1581 // the following holds -> | |
| 1582 // | |
| 1583 // Arguments: | |
| 1584 // | |
|
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1585 // rbx,: Method* |
| 0 | 1586 // rcx: receiver |
| 1587 // | |
| 1588 // | |
| 1589 // Stack layout immediately at entry | |
| 1590 // | |
| 1591 // [ return address ] <--- rsp | |
| 1592 // [ parameter n ] | |
| 1593 // ... | |
| 1594 // [ parameter 1 ] | |
| 1595 // [ expression stack ] (caller's java expression stack) | |
| 1596 | |
| 1597 // Assuming that we don't go to one of the trivial specialized | |
| 1598 // entries the stack will look like below when we are ready to execute | |
| 1599 // the first bytecode (or call the native routine). The register usage | |
| 1600 // will be as the template based interpreter expects (see interpreter_x86.hpp). | |
| 1601 // | |
| 1602 // local variables follow incoming parameters immediately; i.e. | |
| 1603 // the return address is moved to the end of the locals). | |
| 1604 // | |
| 1605 // [ monitor entry ] <--- rsp | |
| 1606 // ... | |
| 1607 // [ monitor entry ] | |
| 1608 // [ expr. stack bottom ] | |
| 1609 // [ saved rsi ] | |
| 1610 // [ current rdi ] | |
|
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1611 // [ Method* ] |
| 0 | 1612 // [ saved rbp, ] <--- rbp, |
| 1613 // [ return address ] | |
| 1614 // [ local variable m ] | |
| 1615 // ... | |
| 1616 // [ local variable 1 ] | |
| 1617 // [ parameter n ] | |
| 1618 // ... | |
| 1619 // [ parameter 1 ] <--- rdi | |
| 1620 | |
| 1621 address AbstractInterpreterGenerator::generate_method_entry(AbstractInterpreter::MethodKind kind) { | |
| 1622 // determine code generation flags | |
| 1623 bool synchronized = false; | |
| 1624 address entry_point = NULL; | |
|
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1625 InterpreterGenerator* ig_this = (InterpreterGenerator*)this; |
| 0 | 1626 |
| 1627 switch (kind) { | |
|
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1628 case Interpreter::zerolocals : break; |
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1629 case Interpreter::zerolocals_synchronized: synchronized = true; break; |
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1630 case Interpreter::native : entry_point = ig_this->generate_native_entry(false); break; |
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1631 case Interpreter::native_synchronized : entry_point = ig_this->generate_native_entry(true); break; |
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1632 case Interpreter::empty : entry_point = ig_this->generate_empty_entry(); break; |
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1633 case Interpreter::accessor : entry_point = ig_this->generate_accessor_entry(); break; |
|
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|
1634 case Interpreter::abstract : entry_point = ig_this->generate_abstract_entry(); break; |
| 0 | 1635 |
| 1636 case Interpreter::java_lang_math_sin : // fall thru | |
| 1637 case Interpreter::java_lang_math_cos : // fall thru | |
| 1638 case Interpreter::java_lang_math_tan : // fall thru | |
| 1639 case Interpreter::java_lang_math_abs : // fall thru | |
| 1640 case Interpreter::java_lang_math_log : // fall thru | |
| 1641 case Interpreter::java_lang_math_log10 : // fall thru | |
|
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1642 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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1643 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1644 case Interpreter::java_lang_math_exp : entry_point = ig_this->generate_math_entry(kind); break; |
|
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|
1645 case Interpreter::java_lang_ref_reference_get |
|
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|
1646 : entry_point = ig_this->generate_Reference_get_entry(); break; |
|
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|
1647 case Interpreter::java_util_zip_CRC32_update |
|
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1648 : entry_point = ig_this->generate_CRC32_update_entry(); break; |
|
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|
1649 case Interpreter::java_util_zip_CRC32_updateBytes |
|
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1650 : // fall thru |
|
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|
1651 case Interpreter::java_util_zip_CRC32_updateByteBuffer |
|
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1652 : entry_point = ig_this->generate_CRC32_updateBytes_entry(kind); break; |
|
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|
1653 default: |
|
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|
1654 fatal(err_msg("unexpected method kind: %d", kind)); |
|
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1655 break; |
| 0 | 1656 } |
| 1657 | |
| 1658 if (entry_point) return entry_point; | |
| 1659 | |
|
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|
1660 return ig_this->generate_normal_entry(synchronized); |
| 0 | 1661 |
| 1662 } | |
| 1663 | |
|
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1664 // These should never be compiled since the interpreter will prefer |
|
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1665 // the compiled version to the intrinsic version. |
|
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|
1666 bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
|
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1667 switch (method_kind(m)) { |
|
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1668 case Interpreter::java_lang_math_sin : // fall thru |
|
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1669 case Interpreter::java_lang_math_cos : // fall thru |
|
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1670 case Interpreter::java_lang_math_tan : // fall thru |
|
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1671 case Interpreter::java_lang_math_abs : // fall thru |
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1672 case Interpreter::java_lang_math_log : // fall thru |
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1673 case Interpreter::java_lang_math_log10 : // fall thru |
|
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1674 case Interpreter::java_lang_math_sqrt : // fall thru |
|
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|
1675 case Interpreter::java_lang_math_pow : // fall thru |
|
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|
1676 case Interpreter::java_lang_math_exp : |
|
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|
1677 return false; |
|
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|
1678 default: |
|
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|
1679 return true; |
|
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|
1680 } |
|
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|
1681 } |
|
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|
1682 |
| 0 | 1683 // How much stack a method activation needs in words. |
|
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1684 int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
| 0 | 1685 |
| 1686 const int stub_code = 4; // see generate_call_stub | |
| 1687 // Save space for one monitor to get into the interpreted method in case | |
| 1688 // the method is synchronized | |
| 1689 int monitor_size = method->is_synchronized() ? | |
| 1690 1*frame::interpreter_frame_monitor_size() : 0; | |
| 1691 | |
| 1692 // total overhead size: entry_size + (saved rbp, thru expr stack bottom). | |
| 1693 // be sure to change this if you add/subtract anything to/from the overhead area | |
| 1694 const int overhead_size = -frame::interpreter_frame_initial_sp_offset; | |
| 1695 | |
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1696 const int method_stack = (method->max_locals() + method->max_stack()) * |
| 1506 | 1697 Interpreter::stackElementWords; |
| 0 | 1698 return overhead_size + method_stack + stub_code; |
| 1699 } | |
| 1700 | |
| 1701 // asm based interpreter deoptimization helpers | |
| 1702 | |
|
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1703 int AbstractInterpreter::layout_activation(Method* method, |
| 0 | 1704 int tempcount, |
| 1705 int popframe_extra_args, | |
| 1706 int moncount, | |
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1707 int caller_actual_parameters, |
| 0 | 1708 int callee_param_count, |
| 1709 int callee_locals, | |
| 1710 frame* caller, | |
| 1711 frame* interpreter_frame, | |
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1712 bool is_top_frame, |
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1713 bool is_bottom_frame) { |
| 0 | 1714 // Note: This calculation must exactly parallel the frame setup |
| 1715 // in AbstractInterpreterGenerator::generate_method_entry. | |
| 1716 // If interpreter_frame!=NULL, set up the method, locals, and monitors. | |
| 1717 // The frame interpreter_frame, if not NULL, is guaranteed to be the right size, | |
| 1718 // as determined by a previous call to this method. | |
| 1719 // It is also guaranteed to be walkable even though it is in a skeletal state | |
| 1720 // NOTE: return size is in words not bytes | |
| 1721 | |
| 1722 // fixed size of an interpreter frame: | |
| 1506 | 1723 int max_locals = method->max_locals() * Interpreter::stackElementWords; |
| 0 | 1724 int extra_locals = (method->max_locals() - method->size_of_parameters()) * |
| 1506 | 1725 Interpreter::stackElementWords; |
| 0 | 1726 |
| 1727 int overhead = frame::sender_sp_offset - frame::interpreter_frame_initial_sp_offset; | |
| 1728 | |
| 1729 // Our locals were accounted for by the caller (or last_frame_adjust on the transistion) | |
| 1730 // Since the callee parameters already account for the callee's params we only need to account for | |
| 1731 // the extra locals. | |
| 1732 | |
| 1733 | |
| 1734 int size = overhead + | |
| 1506 | 1735 ((callee_locals - callee_param_count)*Interpreter::stackElementWords) + |
| 0 | 1736 (moncount*frame::interpreter_frame_monitor_size()) + |
| 1506 | 1737 tempcount*Interpreter::stackElementWords + popframe_extra_args; |
| 0 | 1738 |
| 1739 if (interpreter_frame != NULL) { | |
| 1740 #ifdef ASSERT | |
|
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1741 if (!EnableInvokeDynamic) |
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1742 // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
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1743 // Probably, since deoptimization doesn't work yet. |
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1744 assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
| 0 | 1745 assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)"); |
| 1746 #endif | |
| 1747 | |
| 1748 interpreter_frame->interpreter_frame_set_method(method); | |
| 1749 // NOTE the difference in using sender_sp and interpreter_frame_sender_sp | |
| 1750 // interpreter_frame_sender_sp is the original sp of the caller (the unextended_sp) | |
| 1751 // and sender_sp is fp+8 | |
| 1752 intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; | |
| 1753 | |
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1754 #ifdef ASSERT |
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1755 if (caller->is_interpreted_frame()) { |
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1756 assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
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1757 } |
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1758 #endif |
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1759 |
| 0 | 1760 interpreter_frame->interpreter_frame_set_locals(locals); |
| 1761 BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); | |
| 1762 BasicObjectLock* monbot = montop - moncount; | |
| 1763 interpreter_frame->interpreter_frame_set_monitor_end(monbot); | |
| 1764 | |
| 1765 // Set last_sp | |
| 1766 intptr_t* rsp = (intptr_t*) monbot - | |
| 1506 | 1767 tempcount*Interpreter::stackElementWords - |
| 0 | 1768 popframe_extra_args; |
| 1769 interpreter_frame->interpreter_frame_set_last_sp(rsp); | |
| 1770 | |
| 1771 // All frames but the initial (oldest) interpreter frame we fill in have a | |
| 1772 // value for sender_sp that allows walking the stack but isn't | |
| 1773 // truly correct. Correct the value here. | |
| 1774 | |
| 1775 if (extra_locals != 0 && | |
| 1776 interpreter_frame->sender_sp() == interpreter_frame->interpreter_frame_sender_sp() ) { | |
| 1777 interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + extra_locals); | |
| 1778 } | |
| 1779 *interpreter_frame->interpreter_frame_cache_addr() = | |
| 1780 method->constants()->cache(); | |
| 1781 } | |
| 1782 return size; | |
| 1783 } | |
| 1784 | |
| 1785 | |
| 1786 //------------------------------------------------------------------------------------------------------------------------ | |
| 1787 // Exceptions | |
| 1788 | |
| 1789 void TemplateInterpreterGenerator::generate_throw_exception() { | |
| 1790 // Entry point in previous activation (i.e., if the caller was interpreted) | |
| 1791 Interpreter::_rethrow_exception_entry = __ pc(); | |
| 1295 | 1792 const Register thread = rcx; |
| 0 | 1793 |
| 1794 // Restore sp to interpreter_frame_last_sp even though we are going | |
| 1795 // to empty the expression stack for the exception processing. | |
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1796 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| 0 | 1797 // rax,: exception |
| 1798 // rdx: return address/pc that threw exception | |
| 1799 __ restore_bcp(); // rsi points to call/send | |
| 1800 __ restore_locals(); | |
| 1801 | |
| 1802 // Entry point for exceptions thrown within interpreter code | |
| 1803 Interpreter::_throw_exception_entry = __ pc(); | |
| 1804 // expression stack is undefined here | |
| 1805 // rax,: exception | |
| 1806 // rsi: exception bcp | |
| 1807 __ verify_oop(rax); | |
| 1808 | |
| 1809 // expression stack must be empty before entering the VM in case of an exception | |
| 1810 __ empty_expression_stack(); | |
| 1811 __ empty_FPU_stack(); | |
| 1812 // find exception handler address and preserve exception oop | |
| 1813 __ call_VM(rdx, CAST_FROM_FN_PTR(address, InterpreterRuntime::exception_handler_for_exception), rax); | |
| 1814 // rax,: exception handler entry point | |
| 1815 // rdx: preserved exception oop | |
| 1816 // rsi: bcp for exception handler | |
| 1817 __ push_ptr(rdx); // push exception which is now the only value on the stack | |
| 1818 __ jmp(rax); // jump to exception handler (may be _remove_activation_entry!) | |
| 1819 | |
| 1820 // If the exception is not handled in the current frame the frame is removed and | |
| 1821 // the exception is rethrown (i.e. exception continuation is _rethrow_exception). | |
| 1822 // | |
| 1823 // Note: At this point the bci is still the bxi for the instruction which caused | |
| 1824 // the exception and the expression stack is empty. Thus, for any VM calls | |
| 1825 // at this point, GC will find a legal oop map (with empty expression stack). | |
| 1826 | |
| 1827 // In current activation | |
| 1828 // tos: exception | |
| 1829 // rsi: exception bcp | |
| 1830 | |
| 1831 // | |
| 1832 // JVMTI PopFrame support | |
| 1833 // | |
| 1834 | |
| 1835 Interpreter::_remove_activation_preserving_args_entry = __ pc(); | |
| 1836 __ empty_expression_stack(); | |
| 1837 __ empty_FPU_stack(); | |
| 1838 // Set the popframe_processing bit in pending_popframe_condition indicating that we are | |
| 1839 // currently handling popframe, so that call_VMs that may happen later do not trigger new | |
| 1840 // popframe handling cycles. | |
| 1295 | 1841 __ get_thread(thread); |
| 1842 __ movl(rdx, Address(thread, JavaThread::popframe_condition_offset())); | |
| 0 | 1843 __ orl(rdx, JavaThread::popframe_processing_bit); |
| 1295 | 1844 __ movl(Address(thread, JavaThread::popframe_condition_offset()), rdx); |
| 0 | 1845 |
| 1846 { | |
| 1847 // Check to see whether we are returning to a deoptimized frame. | |
| 1848 // (The PopFrame call ensures that the caller of the popped frame is | |
| 1849 // either interpreted or compiled and deoptimizes it if compiled.) | |
| 1850 // In this case, we can't call dispatch_next() after the frame is | |
| 1851 // popped, but instead must save the incoming arguments and restore | |
| 1852 // them after deoptimization has occurred. | |
| 1853 // | |
| 1854 // Note that we don't compare the return PC against the | |
| 1855 // deoptimization blob's unpack entry because of the presence of | |
| 1856 // adapter frames in C2. | |
| 1857 Label caller_not_deoptimized; | |
| 304 | 1858 __ movptr(rdx, Address(rbp, frame::return_addr_offset * wordSize)); |
| 0 | 1859 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::interpreter_contains), rdx); |
| 1860 __ testl(rax, rax); | |
| 1861 __ jcc(Assembler::notZero, caller_not_deoptimized); | |
| 1862 | |
| 1863 // Compute size of arguments for saving when returning to deoptimized caller | |
| 1864 __ get_method(rax); | |
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1865 __ movptr(rax, Address(rax, Method::const_offset())); |
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1866 __ load_unsigned_short(rax, Address(rax, ConstMethod::size_of_parameters_offset())); |
| 1506 | 1867 __ shlptr(rax, Interpreter::logStackElementSize); |
| 0 | 1868 __ restore_locals(); |
| 304 | 1869 __ subptr(rdi, rax); |
| 1870 __ addptr(rdi, wordSize); | |
| 0 | 1871 // Save these arguments |
| 1295 | 1872 __ get_thread(thread); |
| 1873 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::popframe_preserve_args), thread, rax, rdi); | |
| 0 | 1874 |
| 1875 __ remove_activation(vtos, rdx, | |
| 1876 /* throw_monitor_exception */ false, | |
| 1877 /* install_monitor_exception */ false, | |
| 1878 /* notify_jvmdi */ false); | |
| 1879 | |
| 1880 // Inform deoptimization that it is responsible for restoring these arguments | |
| 1295 | 1881 __ get_thread(thread); |
| 1882 __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_force_deopt_reexecution_bit); | |
| 0 | 1883 |
| 1884 // Continue in deoptimization handler | |
| 1885 __ jmp(rdx); | |
| 1886 | |
| 1887 __ bind(caller_not_deoptimized); | |
| 1888 } | |
| 1889 | |
| 1890 __ remove_activation(vtos, rdx, | |
| 1891 /* throw_monitor_exception */ false, | |
| 1892 /* install_monitor_exception */ false, | |
| 1893 /* notify_jvmdi */ false); | |
| 1894 | |
| 1895 // Finish with popframe handling | |
| 1896 // A previous I2C followed by a deoptimization might have moved the | |
| 1897 // outgoing arguments further up the stack. PopFrame expects the | |
| 1898 // mutations to those outgoing arguments to be preserved and other | |
| 1899 // constraints basically require this frame to look exactly as | |
| 1900 // though it had previously invoked an interpreted activation with | |
| 1901 // no space between the top of the expression stack (current | |
| 1902 // last_sp) and the top of stack. Rather than force deopt to | |
| 1903 // maintain this kind of invariant all the time we call a small | |
| 1904 // fixup routine to move the mutated arguments onto the top of our | |
| 1905 // expression stack if necessary. | |
| 304 | 1906 __ mov(rax, rsp); |
| 1907 __ movptr(rbx, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); | |
| 1295 | 1908 __ get_thread(thread); |
| 0 | 1909 // PC must point into interpreter here |
| 1295 | 1910 __ set_last_Java_frame(thread, noreg, rbp, __ pc()); |
| 1911 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), thread, rax, rbx); | |
| 1912 __ get_thread(thread); | |
| 1913 __ reset_last_Java_frame(thread, true, true); | |
| 0 | 1914 // Restore the last_sp and null it out |
| 304 | 1915 __ movptr(rsp, Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize)); |
|
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1916 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD); |
| 0 | 1917 |
| 1918 __ restore_bcp(); | |
| 1919 __ restore_locals(); | |
| 1920 // The method data pointer was incremented already during | |
| 1921 // call profiling. We have to restore the mdp for the current bcp. | |
| 1922 if (ProfileInterpreter) { | |
| 1923 __ set_method_data_pointer_for_bcp(); | |
| 1924 } | |
| 1925 | |
| 1926 // Clear the popframe condition flag | |
| 1295 | 1927 __ get_thread(thread); |
| 1928 __ movl(Address(thread, JavaThread::popframe_condition_offset()), JavaThread::popframe_inactive); | |
| 0 | 1929 |
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1930 #if INCLUDE_JVMTI |
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1931 if (EnableInvokeDynamic) { |
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1932 Label L_done; |
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1933 const Register local0 = rdi; |
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1934 |
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1935 __ cmpb(Address(rsi, 0), Bytecodes::_invokestatic); |
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1936 __ jcc(Assembler::notEqual, L_done); |
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1937 |
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1938 // The member name argument must be restored if _invokestatic is re-executed after a PopFrame call. |
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1939 // Detect such a case in the InterpreterRuntime function and return the member name argument, or NULL. |
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1940 |
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1941 __ get_method(rdx); |
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1942 __ movptr(rax, Address(local0, 0)); |
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1943 __ call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::member_name_arg_or_null), rax, rdx, rsi); |
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1944 |
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1945 __ testptr(rax, rax); |
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1946 __ jcc(Assembler::zero, L_done); |
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1947 |
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1948 __ movptr(Address(rbx, 0), rax); |
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1949 __ bind(L_done); |
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1950 } |
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1951 #endif // INCLUDE_JVMTI |
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1952 |
| 0 | 1953 __ dispatch_next(vtos); |
| 1954 // end of PopFrame support | |
| 1955 | |
| 1956 Interpreter::_remove_activation_entry = __ pc(); | |
| 1957 | |
| 1958 // preserve exception over this code sequence | |
| 1959 __ pop_ptr(rax); | |
| 1295 | 1960 __ get_thread(thread); |
| 1961 __ movptr(Address(thread, JavaThread::vm_result_offset()), rax); | |
| 0 | 1962 // remove the activation (without doing throws on illegalMonitorExceptions) |
| 1963 __ remove_activation(vtos, rdx, false, true, false); | |
| 1964 // restore exception | |
| 1295 | 1965 __ get_thread(thread); |
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1966 __ get_vm_result(rax, thread); |
| 0 | 1967 |
| 1968 // Inbetween activations - previous activation type unknown yet | |
| 1969 // compute continuation point - the continuation point expects | |
| 1970 // the following registers set up: | |
| 1971 // | |
| 1295 | 1972 // rax: exception |
| 0 | 1973 // rdx: return address/pc that threw exception |
| 1974 // rsp: expression stack of caller | |
| 1295 | 1975 // rbp: rbp, of caller |
| 304 | 1976 __ push(rax); // save exception |
| 1977 __ push(rdx); // save return address | |
| 1295 | 1978 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, rdx); |
| 304 | 1979 __ mov(rbx, rax); // save exception handler |
| 1980 __ pop(rdx); // restore return address | |
| 1981 __ pop(rax); // restore exception | |
| 0 | 1982 // Note that an "issuing PC" is actually the next PC after the call |
| 1983 __ jmp(rbx); // jump to exception handler of caller | |
| 1984 } | |
| 1985 | |
| 1986 | |
| 1987 // | |
| 1988 // JVMTI ForceEarlyReturn support | |
| 1989 // | |
| 1990 address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { | |
| 1991 address entry = __ pc(); | |
| 1295 | 1992 const Register thread = rcx; |
| 0 | 1993 |
| 1994 __ restore_bcp(); | |
| 1995 __ restore_locals(); | |
| 1996 __ empty_expression_stack(); | |
| 1997 __ empty_FPU_stack(); | |
| 1998 __ load_earlyret_value(state); | |
| 1999 | |
| 1295 | 2000 __ get_thread(thread); |
| 2001 __ movptr(rcx, Address(thread, JavaThread::jvmti_thread_state_offset())); | |
| 0 | 2002 const Address cond_addr(rcx, JvmtiThreadState::earlyret_state_offset()); |
| 2003 | |
| 2004 // Clear the earlyret state | |
| 2005 __ movl(cond_addr, JvmtiThreadState::earlyret_inactive); | |
| 2006 | |
| 2007 __ remove_activation(state, rsi, | |
| 2008 false, /* throw_monitor_exception */ | |
| 2009 false, /* install_monitor_exception */ | |
| 2010 true); /* notify_jvmdi */ | |
| 2011 __ jmp(rsi); | |
| 2012 return entry; | |
| 2013 } // end of ForceEarlyReturn support | |
| 2014 | |
| 2015 | |
| 2016 //------------------------------------------------------------------------------------------------------------------------ | |
| 2017 // Helper for vtos entry point generation | |
| 2018 | |
| 2019 void TemplateInterpreterGenerator::set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep) { | |
| 2020 assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); | |
| 2021 Label L; | |
| 2022 fep = __ pc(); __ push(ftos); __ jmp(L); | |
| 2023 dep = __ pc(); __ push(dtos); __ jmp(L); | |
| 2024 lep = __ pc(); __ push(ltos); __ jmp(L); | |
| 2025 aep = __ pc(); __ push(atos); __ jmp(L); | |
| 2026 bep = cep = sep = // fall through | |
| 2027 iep = __ pc(); __ push(itos); // fall through | |
| 2028 vep = __ pc(); __ bind(L); // fall through | |
| 2029 generate_and_dispatch(t); | |
| 2030 } | |
| 2031 | |
| 2032 //------------------------------------------------------------------------------------------------------------------------ | |
| 2033 // Generation of individual instructions | |
| 2034 | |
| 2035 // helpers for generate_and_dispatch | |
| 2036 | |
| 2037 | |
| 2038 | |
| 2039 InterpreterGenerator::InterpreterGenerator(StubQueue* code) | |
| 2040 : TemplateInterpreterGenerator(code) { | |
| 2041 generate_all(); // down here so it can be "virtual" | |
| 2042 } | |
| 2043 | |
| 2044 //------------------------------------------------------------------------------------------------------------------------ | |
| 2045 | |
| 2046 // Non-product code | |
| 2047 #ifndef PRODUCT | |
| 2048 address TemplateInterpreterGenerator::generate_trace_code(TosState state) { | |
| 2049 address entry = __ pc(); | |
| 2050 | |
| 2051 // prepare expression stack | |
| 304 | 2052 __ pop(rcx); // pop return address so expression stack is 'pure' |
| 0 | 2053 __ push(state); // save tosca |
| 2054 | |
| 2055 // pass tosca registers as arguments & call tracer | |
| 2056 __ call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), rcx, rax, rdx); | |
| 304 | 2057 __ mov(rcx, rax); // make sure return address is not destroyed by pop(state) |
| 0 | 2058 __ pop(state); // restore tosca |
| 2059 | |
| 2060 // return | |
| 2061 __ jmp(rcx); | |
| 2062 | |
| 2063 return entry; | |
| 2064 } | |
| 2065 | |
| 2066 | |
| 2067 void TemplateInterpreterGenerator::count_bytecode() { | |
| 304 | 2068 __ incrementl(ExternalAddress((address) &BytecodeCounter::_counter_value)); |
| 0 | 2069 } |
| 2070 | |
| 2071 | |
| 2072 void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { | |
| 304 | 2073 __ incrementl(ExternalAddress((address) &BytecodeHistogram::_counters[t->bytecode()])); |
| 0 | 2074 } |
| 2075 | |
| 2076 | |
| 2077 void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { | |
| 2078 __ mov32(ExternalAddress((address) &BytecodePairHistogram::_index), rbx); | |
| 2079 __ shrl(rbx, BytecodePairHistogram::log2_number_of_codes); | |
| 2080 __ orl(rbx, ((int)t->bytecode()) << BytecodePairHistogram::log2_number_of_codes); | |
| 2081 ExternalAddress table((address) BytecodePairHistogram::_counters); | |
| 2082 Address index(noreg, rbx, Address::times_4); | |
| 304 | 2083 __ incrementl(ArrayAddress(table, index)); |
| 0 | 2084 } |
| 2085 | |
| 2086 | |
| 2087 void TemplateInterpreterGenerator::trace_bytecode(Template* t) { | |
| 2088 // Call a little run-time stub to avoid blow-up for each bytecode. | |
| 2089 // The run-time runtime saves the right registers, depending on | |
| 2090 // the tosca in-state for the given template. | |
| 2091 assert(Interpreter::trace_code(t->tos_in()) != NULL, | |
| 2092 "entry must have been generated"); | |
| 2093 __ call(RuntimeAddress(Interpreter::trace_code(t->tos_in()))); | |
| 2094 } | |
| 2095 | |
| 2096 | |
| 2097 void TemplateInterpreterGenerator::stop_interpreter_at() { | |
| 2098 Label L; | |
| 2099 __ cmp32(ExternalAddress((address) &BytecodeCounter::_counter_value), | |
| 2100 StopInterpreterAt); | |
| 2101 __ jcc(Assembler::notEqual, L); | |
| 2102 __ int3(); | |
| 2103 __ bind(L); | |
| 2104 } | |
| 2105 #endif // !PRODUCT | |
| 2106 #endif // CC_INTERP |