1 /* 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "interpreter/interpreter.hpp" 27 #include "interpreter/interpreterRuntime.hpp" 28 #include "interpreter/interp_masm.hpp" 29 #include "interpreter/templateInterpreter.hpp" 30 #include "interpreter/templateInterpreterGenerator.hpp" 31 #include "interpreter/templateTable.hpp" 32 33 #ifndef CC_INTERP 34 35 # define __ _masm-> 36 37 TemplateInterpreterGenerator::TemplateInterpreterGenerator(StubQueue* _code): AbstractInterpreterGenerator(_code) { 38 _unimplemented_bytecode = NULL; 39 _illegal_bytecode_sequence = NULL; 40 generate_all(); 41 } 42 43 static const BasicType types[Interpreter::number_of_result_handlers] = { 44 T_BOOLEAN, 45 T_CHAR , 46 T_BYTE , 47 T_SHORT , 48 T_INT , 49 T_LONG , 50 T_VOID , 51 T_FLOAT , 52 T_DOUBLE , 53 T_OBJECT 54 }; 55 56 void TemplateInterpreterGenerator::generate_all() { 57 { CodeletMark cm(_masm, "slow signature handler"); 58 AbstractInterpreter::_slow_signature_handler = generate_slow_signature_handler(); 59 } 60 61 { CodeletMark cm(_masm, "error exits"); 62 _unimplemented_bytecode = generate_error_exit("unimplemented bytecode"); 63 _illegal_bytecode_sequence = generate_error_exit("illegal bytecode sequence - method not verified"); 64 } 65 66 #ifndef PRODUCT 67 if (TraceBytecodes) { 68 CodeletMark cm(_masm, "bytecode tracing support"); 69 Interpreter::_trace_code = 70 EntryPoint( 71 generate_trace_code(btos), 72 generate_trace_code(ztos), 73 generate_trace_code(ctos), 74 generate_trace_code(stos), 75 generate_trace_code(atos), 76 generate_trace_code(itos), 77 generate_trace_code(ltos), 78 generate_trace_code(ftos), 79 generate_trace_code(dtos), 80 generate_trace_code(vtos) 81 ); 82 } 83 #endif // !PRODUCT 84 85 { CodeletMark cm(_masm, "return entry points"); 86 const int index_size = sizeof(u2); 87 for (int i = 0; i < Interpreter::number_of_return_entries; i++) { 88 Interpreter::_return_entry[i] = 89 EntryPoint( 90 generate_return_entry_for(itos, i, index_size), 91 generate_return_entry_for(itos, i, index_size), 92 generate_return_entry_for(itos, i, index_size), 93 generate_return_entry_for(itos, i, index_size), 94 generate_return_entry_for(atos, i, index_size), 95 generate_return_entry_for(itos, i, index_size), 96 generate_return_entry_for(ltos, i, index_size), 97 generate_return_entry_for(ftos, i, index_size), 98 generate_return_entry_for(dtos, i, index_size), 99 generate_return_entry_for(vtos, i, index_size) 100 ); 101 } 102 } 103 104 { CodeletMark cm(_masm, "invoke return entry points"); 105 // These states are in order specified in TosState, except btos/ztos/ctos/stos are 106 // really the same as itos since there is no top of stack optimization for these types 107 const TosState states[] = {itos, itos, itos, itos, itos, ltos, ftos, dtos, atos, vtos, ilgl}; 108 const int invoke_length = Bytecodes::length_for(Bytecodes::_invokestatic); 109 const int invokeinterface_length = Bytecodes::length_for(Bytecodes::_invokeinterface); 110 const int invokedynamic_length = Bytecodes::length_for(Bytecodes::_invokedynamic); 111 112 for (int i = 0; i < Interpreter::number_of_return_addrs; i++) { 113 TosState state = states[i]; 114 assert(state != ilgl, "states array is wrong above"); 115 Interpreter::_invoke_return_entry[i] = generate_return_entry_for(state, invoke_length, sizeof(u2)); 116 Interpreter::_invokeinterface_return_entry[i] = generate_return_entry_for(state, invokeinterface_length, sizeof(u2)); 117 Interpreter::_invokedynamic_return_entry[i] = generate_return_entry_for(state, invokedynamic_length, sizeof(u4)); 118 } 119 } 120 121 { CodeletMark cm(_masm, "earlyret entry points"); 122 Interpreter::_earlyret_entry = 123 EntryPoint( 124 generate_earlyret_entry_for(btos), 125 generate_earlyret_entry_for(ztos), 126 generate_earlyret_entry_for(ctos), 127 generate_earlyret_entry_for(stos), 128 generate_earlyret_entry_for(atos), 129 generate_earlyret_entry_for(itos), 130 generate_earlyret_entry_for(ltos), 131 generate_earlyret_entry_for(ftos), 132 generate_earlyret_entry_for(dtos), 133 generate_earlyret_entry_for(vtos) 134 ); 135 } 136 137 { CodeletMark cm(_masm, "deoptimization entry points"); 138 for (int i = 0; i < Interpreter::number_of_deopt_entries; i++) { 139 Interpreter::_deopt_entry[i] = 140 EntryPoint( 141 generate_deopt_entry_for(itos, i), 142 generate_deopt_entry_for(itos, i), 143 generate_deopt_entry_for(itos, i), 144 generate_deopt_entry_for(itos, i), 145 generate_deopt_entry_for(atos, i), 146 generate_deopt_entry_for(itos, i), 147 generate_deopt_entry_for(ltos, i), 148 generate_deopt_entry_for(ftos, i), 149 generate_deopt_entry_for(dtos, i), 150 generate_deopt_entry_for(vtos, i) 151 ); 152 } 153 } 154 155 { CodeletMark cm(_masm, "result handlers for native calls"); 156 // The various result converter stublets. 157 int is_generated[Interpreter::number_of_result_handlers]; 158 memset(is_generated, 0, sizeof(is_generated)); 159 160 for (int i = 0; i < Interpreter::number_of_result_handlers; i++) { 161 BasicType type = types[i]; 162 if (!is_generated[Interpreter::BasicType_as_index(type)]++) { 163 Interpreter::_native_abi_to_tosca[Interpreter::BasicType_as_index(type)] = generate_result_handler_for(type); 164 } 165 } 166 } 167 168 { CodeletMark cm(_masm, "continuation entry points"); 169 Interpreter::_continuation_entry = 170 EntryPoint( 171 generate_continuation_for(btos), 172 generate_continuation_for(ztos), 173 generate_continuation_for(ctos), 174 generate_continuation_for(stos), 175 generate_continuation_for(atos), 176 generate_continuation_for(itos), 177 generate_continuation_for(ltos), 178 generate_continuation_for(ftos), 179 generate_continuation_for(dtos), 180 generate_continuation_for(vtos) 181 ); 182 } 183 184 { CodeletMark cm(_masm, "safepoint entry points"); 185 Interpreter::_safept_entry = 186 EntryPoint( 187 generate_safept_entry_for(btos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 188 generate_safept_entry_for(ztos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 189 generate_safept_entry_for(ctos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 190 generate_safept_entry_for(stos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 191 generate_safept_entry_for(atos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 192 generate_safept_entry_for(itos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 193 generate_safept_entry_for(ltos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 194 generate_safept_entry_for(ftos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 195 generate_safept_entry_for(dtos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)), 196 generate_safept_entry_for(vtos, CAST_FROM_FN_PTR(address, InterpreterRuntime::at_safepoint)) 197 ); 198 } 199 200 { CodeletMark cm(_masm, "exception handling"); 201 // (Note: this is not safepoint safe because thread may return to compiled code) 202 generate_throw_exception(); 203 } 204 205 { CodeletMark cm(_masm, "throw exception entrypoints"); 206 Interpreter::_throw_ArrayIndexOutOfBoundsException_entry = generate_ArrayIndexOutOfBounds_handler("java/lang/ArrayIndexOutOfBoundsException"); 207 Interpreter::_throw_ArrayStoreException_entry = generate_klass_exception_handler("java/lang/ArrayStoreException" ); 208 Interpreter::_throw_ArithmeticException_entry = generate_exception_handler("java/lang/ArithmeticException" , "/ by zero"); 209 Interpreter::_throw_ClassCastException_entry = generate_ClassCastException_handler(); 210 Interpreter::_throw_NullPointerException_entry = generate_exception_handler("java/lang/NullPointerException" , NULL ); 211 Interpreter::_throw_StackOverflowError_entry = generate_StackOverflowError_handler(); 212 } 213 214 215 216 #define method_entry(kind) \ 217 { CodeletMark cm(_masm, "method entry point (kind = " #kind ")"); \ 218 Interpreter::_entry_table[Interpreter::kind] = generate_method_entry(Interpreter::kind); \ 219 Interpreter::update_cds_entry_table(Interpreter::kind); \ 220 } 221 222 // all non-native method kinds 223 method_entry(zerolocals) 224 method_entry(zerolocals_synchronized) 225 method_entry(empty) 226 method_entry(accessor) 227 method_entry(abstract) 228 method_entry(java_lang_math_sin ) 229 method_entry(java_lang_math_cos ) 230 method_entry(java_lang_math_tan ) 231 method_entry(java_lang_math_abs ) 232 method_entry(java_lang_math_sqrt ) 233 method_entry(java_lang_math_log ) 234 method_entry(java_lang_math_log10) 235 method_entry(java_lang_math_exp ) 236 method_entry(java_lang_math_pow ) 237 method_entry(java_lang_math_fmaF ) 238 method_entry(java_lang_math_fmaD ) 239 method_entry(java_lang_ref_reference_get) 240 241 AbstractInterpreter::initialize_method_handle_entries(); 242 243 // all native method kinds (must be one contiguous block) 244 Interpreter::_native_entry_begin = Interpreter::code()->code_end(); 245 method_entry(native) 246 method_entry(native_synchronized) 247 Interpreter::_native_entry_end = Interpreter::code()->code_end(); 248 249 method_entry(java_util_zip_CRC32_update) 250 method_entry(java_util_zip_CRC32_updateBytes) 251 method_entry(java_util_zip_CRC32_updateByteBuffer) 252 method_entry(java_util_zip_CRC32C_updateBytes) 253 method_entry(java_util_zip_CRC32C_updateDirectByteBuffer) 254 255 method_entry(java_lang_Float_intBitsToFloat); 256 method_entry(java_lang_Float_floatToRawIntBits); 257 method_entry(java_lang_Double_longBitsToDouble); 258 method_entry(java_lang_Double_doubleToRawLongBits); 259 260 #undef method_entry 261 262 // Bytecodes 263 set_entry_points_for_all_bytes(); 264 265 // installation of code in other places in the runtime 266 // (ExcutableCodeManager calls not needed to copy the entries) 267 set_safepoints_for_all_bytes(); 268 } 269 270 //------------------------------------------------------------------------------------------------------------------------ 271 272 address TemplateInterpreterGenerator::generate_error_exit(const char* msg) { 273 address entry = __ pc(); 274 __ stop(msg); 275 return entry; 276 } 277 278 279 //------------------------------------------------------------------------------------------------------------------------ 280 281 void TemplateInterpreterGenerator::set_entry_points_for_all_bytes() { 282 for (int i = 0; i < DispatchTable::length; i++) { 283 Bytecodes::Code code = (Bytecodes::Code)i; 284 if (Bytecodes::is_defined(code)) { 285 set_entry_points(code); 286 } else { 287 set_unimplemented(i); 288 } 289 } 290 } 291 292 293 void TemplateInterpreterGenerator::set_safepoints_for_all_bytes() { 294 for (int i = 0; i < DispatchTable::length; i++) { 295 Bytecodes::Code code = (Bytecodes::Code)i; 296 if (Bytecodes::is_defined(code)) Interpreter::_safept_table.set_entry(code, Interpreter::_safept_entry); 297 } 298 } 299 300 301 void TemplateInterpreterGenerator::set_unimplemented(int i) { 302 address e = _unimplemented_bytecode; 303 EntryPoint entry(e, e, e, e, e, e, e, e, e, e); 304 Interpreter::_normal_table.set_entry(i, entry); 305 Interpreter::_wentry_point[i] = _unimplemented_bytecode; 306 } 307 308 309 void TemplateInterpreterGenerator::set_entry_points(Bytecodes::Code code) { 310 CodeletMark cm(_masm, Bytecodes::name(code), code); 311 // initialize entry points 312 assert(_unimplemented_bytecode != NULL, "should have been generated before"); 313 assert(_illegal_bytecode_sequence != NULL, "should have been generated before"); 314 address bep = _illegal_bytecode_sequence; 315 address zep = _illegal_bytecode_sequence; 316 address cep = _illegal_bytecode_sequence; 317 address sep = _illegal_bytecode_sequence; 318 address aep = _illegal_bytecode_sequence; 319 address iep = _illegal_bytecode_sequence; 320 address lep = _illegal_bytecode_sequence; 321 address fep = _illegal_bytecode_sequence; 322 address dep = _illegal_bytecode_sequence; 323 address vep = _unimplemented_bytecode; 324 address wep = _unimplemented_bytecode; 325 // code for short & wide version of bytecode 326 if (Bytecodes::is_defined(code)) { 327 Template* t = TemplateTable::template_for(code); 328 assert(t->is_valid(), "just checking"); 329 set_short_entry_points(t, bep, cep, sep, aep, iep, lep, fep, dep, vep); 330 } 331 if (Bytecodes::wide_is_defined(code)) { 332 Template* t = TemplateTable::template_for_wide(code); 333 assert(t->is_valid(), "just checking"); 334 set_wide_entry_point(t, wep); 335 } 336 // set entry points 337 EntryPoint entry(bep, zep, cep, sep, aep, iep, lep, fep, dep, vep); 338 Interpreter::_normal_table.set_entry(code, entry); 339 Interpreter::_wentry_point[code] = wep; 340 } 341 342 343 void TemplateInterpreterGenerator::set_wide_entry_point(Template* t, address& wep) { 344 assert(t->is_valid(), "template must exist"); 345 assert(t->tos_in() == vtos, "only vtos tos_in supported for wide instructions"); 346 wep = __ pc(); generate_and_dispatch(t); 347 } 348 349 350 void TemplateInterpreterGenerator::set_short_entry_points(Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep) { 351 assert(t->is_valid(), "template must exist"); 352 switch (t->tos_in()) { 353 case btos: 354 case ztos: 355 case ctos: 356 case stos: 357 ShouldNotReachHere(); // btos/ctos/stos should use itos. 358 break; 359 case atos: vep = __ pc(); __ pop(atos); aep = __ pc(); generate_and_dispatch(t); break; 360 case itos: vep = __ pc(); __ pop(itos); iep = __ pc(); generate_and_dispatch(t); break; 361 case ltos: vep = __ pc(); __ pop(ltos); lep = __ pc(); generate_and_dispatch(t); break; 362 case ftos: vep = __ pc(); __ pop(ftos); fep = __ pc(); generate_and_dispatch(t); break; 363 case dtos: vep = __ pc(); __ pop(dtos); dep = __ pc(); generate_and_dispatch(t); break; 364 case vtos: set_vtos_entry_points(t, bep, cep, sep, aep, iep, lep, fep, dep, vep); break; 365 default : ShouldNotReachHere(); break; 366 } 367 } 368 369 370 //------------------------------------------------------------------------------------------------------------------------ 371 372 void TemplateInterpreterGenerator::generate_and_dispatch(Template* t, TosState tos_out) { 373 if (PrintBytecodeHistogram) histogram_bytecode(t); 374 #ifndef PRODUCT 375 // debugging code 376 if (CountBytecodes || TraceBytecodes || StopInterpreterAt > 0) count_bytecode(); 377 if (PrintBytecodePairHistogram) histogram_bytecode_pair(t); 378 if (TraceBytecodes) trace_bytecode(t); 379 if (StopInterpreterAt > 0) stop_interpreter_at(); 380 __ verify_FPU(1, t->tos_in()); 381 #endif // !PRODUCT 382 int step = 0; 383 if (!t->does_dispatch()) { 384 step = t->is_wide() ? Bytecodes::wide_length_for(t->bytecode()) : Bytecodes::length_for(t->bytecode()); 385 if (tos_out == ilgl) tos_out = t->tos_out(); 386 // compute bytecode size 387 assert(step > 0, "just checkin'"); 388 // setup stuff for dispatching next bytecode 389 if (ProfileInterpreter && VerifyDataPointer 390 && MethodData::bytecode_has_profile(t->bytecode())) { 391 __ verify_method_data_pointer(); 392 } 393 __ dispatch_prolog(tos_out, step); 394 } 395 // generate template 396 t->generate(_masm); 397 // advance 398 if (t->does_dispatch()) { 399 #ifdef ASSERT 400 // make sure execution doesn't go beyond this point if code is broken 401 __ should_not_reach_here(); 402 #endif // ASSERT 403 } else { 404 // dispatch to next bytecode 405 __ dispatch_epilog(tos_out, step); 406 } 407 } 408 409 // Generate method entries 410 address TemplateInterpreterGenerator::generate_method_entry( 411 AbstractInterpreter::MethodKind kind) { 412 // determine code generation flags 413 bool native = false; 414 bool synchronized = false; 415 address entry_point = NULL; 416 417 switch (kind) { 418 case Interpreter::zerolocals : break; 419 case Interpreter::zerolocals_synchronized: synchronized = true; break; 420 case Interpreter::native : native = true; break; 421 case Interpreter::native_synchronized : native = true; synchronized = true; break; 422 case Interpreter::empty : break; 423 case Interpreter::accessor : break; 424 case Interpreter::abstract : entry_point = generate_abstract_entry(); break; 425 426 case Interpreter::java_lang_math_sin : // fall thru 427 case Interpreter::java_lang_math_cos : // fall thru 428 case Interpreter::java_lang_math_tan : // fall thru 429 case Interpreter::java_lang_math_abs : // fall thru 430 case Interpreter::java_lang_math_log : // fall thru 431 case Interpreter::java_lang_math_log10 : // fall thru 432 case Interpreter::java_lang_math_sqrt : // fall thru 433 case Interpreter::java_lang_math_pow : // fall thru 434 case Interpreter::java_lang_math_exp : // fall thru 435 case Interpreter::java_lang_math_fmaD : // fall thru 436 case Interpreter::java_lang_math_fmaF : entry_point = generate_math_entry(kind); break; 437 case Interpreter::java_lang_ref_reference_get 438 : entry_point = generate_Reference_get_entry(); break; 439 case Interpreter::java_util_zip_CRC32_update 440 : native = true; entry_point = generate_CRC32_update_entry(); break; 441 case Interpreter::java_util_zip_CRC32_updateBytes 442 : // fall thru 443 case Interpreter::java_util_zip_CRC32_updateByteBuffer 444 : native = true; entry_point = generate_CRC32_updateBytes_entry(kind); break; 445 case Interpreter::java_util_zip_CRC32C_updateBytes 446 : // fall thru 447 case Interpreter::java_util_zip_CRC32C_updateDirectByteBuffer 448 : entry_point = generate_CRC32C_updateBytes_entry(kind); break; 449 #ifdef IA32 450 // On x86_32 platforms, a special entry is generated for the following four methods. 451 // On other platforms the normal entry is used to enter these methods. 452 case Interpreter::java_lang_Float_intBitsToFloat 453 : native = true; entry_point = generate_Float_intBitsToFloat_entry(); break; 454 case Interpreter::java_lang_Float_floatToRawIntBits 455 : native = true; entry_point = generate_Float_floatToRawIntBits_entry(); break; 456 case Interpreter::java_lang_Double_longBitsToDouble 457 : native = true; entry_point = generate_Double_longBitsToDouble_entry(); break; 458 case Interpreter::java_lang_Double_doubleToRawLongBits 459 : native = true; entry_point = generate_Double_doubleToRawLongBits_entry(); break; 460 #else 461 case Interpreter::java_lang_Float_intBitsToFloat: 462 case Interpreter::java_lang_Float_floatToRawIntBits: 463 case Interpreter::java_lang_Double_longBitsToDouble: 464 case Interpreter::java_lang_Double_doubleToRawLongBits: 465 native = true; 466 break; 467 #endif // !IA32 468 default: 469 fatal("unexpected method kind: %d", kind); 470 break; 471 } 472 473 if (entry_point) { 474 return entry_point; 475 } 476 477 // We expect the normal and native entry points to be generated first so we can reuse them. 478 if (native) { 479 entry_point = Interpreter::entry_for_kind(synchronized ? Interpreter::native_synchronized : Interpreter::native); 480 if (entry_point == NULL) { 481 entry_point = generate_native_entry(synchronized); 482 } 483 } else { 484 entry_point = Interpreter::entry_for_kind(synchronized ? Interpreter::zerolocals_synchronized : Interpreter::zerolocals); 485 if (entry_point == NULL) { 486 entry_point = generate_normal_entry(synchronized); 487 } 488 } 489 490 return entry_point; 491 } 492 #endif // !CC_INTERP