Tue, 04 Sep 2018 21:25:12 +0800
#7517 mRegP match a0_RegP
aoqi@1 | 1 | /* |
aoqi@1 | 2 | * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@8863 | 3 | * Copyright (c) 2015, 2018, Loongson Technology. All rights reserved. |
aoqi@1 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@1 | 5 | * |
aoqi@1 | 6 | * This code is free software; you can redistribute it and/or modify it |
aoqi@1 | 7 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@1 | 8 | * published by the Free Software Foundation. |
aoqi@1 | 9 | * |
aoqi@1 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@1 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@1 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@1 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@1 | 14 | * accompanied this code). |
aoqi@1 | 15 | * |
aoqi@1 | 16 | * You should have received a copy of the GNU General Public License version |
aoqi@1 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@1 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@1 | 19 | * |
aoqi@1 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@1 | 21 | * or visit www.oracle.com if you need additional information or have any |
aoqi@1 | 22 | * questions. |
aoqi@1 | 23 | * |
aoqi@1 | 24 | */ |
aoqi@1 | 25 | |
aoqi@1 | 26 | #include "precompiled.hpp" |
aoqi@1 | 27 | #include "asm/macroAssembler.hpp" |
aoqi@1 | 28 | #include "interpreter/bytecodeHistogram.hpp" |
aoqi@1 | 29 | #include "interpreter/interpreter.hpp" |
aoqi@1 | 30 | #include "interpreter/interpreterGenerator.hpp" |
aoqi@1 | 31 | #include "interpreter/interpreterRuntime.hpp" |
aoqi@1 | 32 | #include "interpreter/templateTable.hpp" |
aoqi@1 | 33 | #include "oops/arrayOop.hpp" |
aoqi@1 | 34 | #include "oops/methodData.hpp" |
aoqi@1 | 35 | #include "oops/method.hpp" |
aoqi@1 | 36 | #include "oops/oop.inline.hpp" |
aoqi@1 | 37 | #include "prims/jvmtiExport.hpp" |
aoqi@1 | 38 | #include "prims/jvmtiThreadState.hpp" |
aoqi@1 | 39 | #include "runtime/arguments.hpp" |
aoqi@1 | 40 | #include "runtime/deoptimization.hpp" |
aoqi@1 | 41 | #include "runtime/frame.inline.hpp" |
aoqi@1 | 42 | #include "runtime/sharedRuntime.hpp" |
aoqi@1 | 43 | #include "runtime/stubRoutines.hpp" |
aoqi@1 | 44 | #include "runtime/synchronizer.hpp" |
aoqi@1 | 45 | #include "runtime/timer.hpp" |
aoqi@1 | 46 | #include "runtime/vframeArray.hpp" |
aoqi@1 | 47 | #include "utilities/debug.hpp" |
aoqi@1 | 48 | |
aoqi@1 | 49 | #define __ _masm-> |
aoqi@1 | 50 | |
aoqi@1 | 51 | #ifndef CC_INTERP |
aoqi@1 | 52 | |
aoqi@1 | 53 | // asm based interpreter deoptimization helpers |
aoqi@1 | 54 | int AbstractInterpreter::size_activation(int max_stack, |
aoqi@1 | 55 | int temps, |
aoqi@1 | 56 | int extra_args, |
aoqi@1 | 57 | int monitors, |
aoqi@1 | 58 | int callee_params, |
aoqi@1 | 59 | int callee_locals, |
aoqi@1 | 60 | bool is_top_frame) { |
aoqi@1 | 61 | // Note: This calculation must exactly parallel the frame setup |
aoqi@1 | 62 | // in AbstractInterpreterGenerator::generate_method_entry. |
aoqi@1 | 63 | |
aoqi@1 | 64 | // fixed size of an interpreter frame: |
aoqi@1 | 65 | int overhead = frame::sender_sp_offset - |
aoqi@1 | 66 | frame::interpreter_frame_initial_sp_offset; |
aoqi@1 | 67 | // Our locals were accounted for by the caller (or last_frame_adjust |
aoqi@1 | 68 | // on the transistion) Since the callee parameters already account |
aoqi@1 | 69 | // for the callee's params we only need to account for the extra |
aoqi@1 | 70 | // locals. |
aoqi@1 | 71 | int size = overhead + |
aoqi@1 | 72 | (callee_locals - callee_params)*Interpreter::stackElementWords + |
aoqi@1 | 73 | monitors * frame::interpreter_frame_monitor_size() + |
aoqi@1 | 74 | temps* Interpreter::stackElementWords + extra_args; |
aoqi@1 | 75 | |
aoqi@1 | 76 | return size; |
aoqi@1 | 77 | } |
aoqi@1 | 78 | |
aoqi@1 | 79 | |
aoqi@1 | 80 | const int Interpreter::return_sentinel = 0xfeedbeed; |
aoqi@1 | 81 | const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
aoqi@1 | 82 | const int bci_offset = frame::interpreter_frame_bcx_offset * wordSize; |
aoqi@1 | 83 | const int locals_offset = frame::interpreter_frame_locals_offset * wordSize; |
aoqi@1 | 84 | |
aoqi@1 | 85 | //----------------------------------------------------------------------------- |
aoqi@1 | 86 | |
aoqi@1 | 87 | address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { |
aoqi@1 | 88 | address entry = __ pc(); |
aoqi@1 | 89 | |
aoqi@1 | 90 | #ifdef ASSERT |
aoqi@1 | 91 | { |
aoqi@1 | 92 | Label L; |
aoqi@6880 | 93 | __ addi(T1, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
aoqi@6880 | 94 | __ sub(T1, T1, SP); // T1 = maximal sp for current fp |
aoqi@6880 | 95 | __ bgez(T1, L); // check if frame is complete |
aoqi@6880 | 96 | __ delayed()->nop(); |
aoqi@6880 | 97 | __ stop("interpreter frame not set up"); |
aoqi@6880 | 98 | __ bind(L); |
aoqi@1 | 99 | } |
aoqi@1 | 100 | #endif // ASSERT |
aoqi@1 | 101 | // Restore bcp under the assumption that the current frame is still |
aoqi@1 | 102 | // interpreted |
aoqi@6880 | 103 | // FIXME: please change the func restore_bcp |
aoqi@6880 | 104 | // S0 is the conventional register for bcp |
aoqi@1 | 105 | __ restore_bcp(); |
aoqi@1 | 106 | |
aoqi@1 | 107 | // expression stack must be empty before entering the VM if an |
aoqi@1 | 108 | // exception happened |
aoqi@1 | 109 | __ empty_expression_stack(); |
aoqi@1 | 110 | // throw exception |
aoqi@6880 | 111 | // FIXME: why do not pass parameter thread ? |
aoqi@6880 | 112 | __ call_VM(NOREG, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError)); |
aoqi@1 | 113 | return entry; |
aoqi@1 | 114 | } |
aoqi@1 | 115 | |
aoqi@1 | 116 | address TemplateInterpreterGenerator::generate_ArrayIndexOutOfBounds_handler( |
aoqi@1 | 117 | const char* name) { |
aoqi@1 | 118 | address entry = __ pc(); |
aoqi@1 | 119 | // expression stack must be empty before entering the VM if an |
aoqi@1 | 120 | // exception happened |
aoqi@1 | 121 | __ empty_expression_stack(); |
aoqi@1 | 122 | __ li(A1, (long)name); |
aoqi@6880 | 123 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 124 | InterpreterRuntime::throw_ArrayIndexOutOfBoundsException), A1, A2); |
aoqi@1 | 125 | return entry; |
aoqi@1 | 126 | } |
aoqi@1 | 127 | |
aoqi@1 | 128 | address TemplateInterpreterGenerator::generate_ClassCastException_handler() { |
aoqi@1 | 129 | address entry = __ pc(); |
aoqi@1 | 130 | |
aoqi@1 | 131 | // expression stack must be empty before entering the VM if an |
aoqi@1 | 132 | // exception happened |
aoqi@1 | 133 | __ empty_expression_stack(); |
aoqi@1 | 134 | __ empty_FPU_stack(); |
aoqi@1 | 135 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_ClassCastException), FSR); |
aoqi@1 | 136 | return entry; |
aoqi@1 | 137 | } |
aoqi@1 | 138 | |
aoqi@1 | 139 | address TemplateInterpreterGenerator::generate_exception_handler_common( |
aoqi@1 | 140 | const char* name, const char* message, bool pass_oop) { |
aoqi@6880 | 141 | assert(!pass_oop || message == NULL, "either oop or message but not both"); |
aoqi@6880 | 142 | address entry = __ pc(); |
aoqi@1 | 143 | |
aoqi@6880 | 144 | // expression stack must be empty before entering the VM if an exception happened |
aoqi@6880 | 145 | __ empty_expression_stack(); |
aoqi@6880 | 146 | // setup parameters |
aoqi@6880 | 147 | __ li(A1, (long)name); |
aoqi@6880 | 148 | if (pass_oop) { |
aoqi@6880 | 149 | __ call_VM(V0, |
aoqi@6880 | 150 | CAST_FROM_FN_PTR(address, InterpreterRuntime::create_klass_exception), A1, FSR); |
aoqi@6880 | 151 | } else { |
aoqi@6880 | 152 | __ li(A2, (long)message); |
aoqi@6880 | 153 | __ call_VM(V0, |
aoqi@6880 | 154 | CAST_FROM_FN_PTR(address, InterpreterRuntime::create_exception), A1, A2); |
aoqi@6880 | 155 | } |
aoqi@6880 | 156 | // throw exception |
aoqi@6880 | 157 | __ jmp(Interpreter::throw_exception_entry(), relocInfo::none); |
aoqi@6880 | 158 | __ delayed()->nop(); |
aoqi@6880 | 159 | return entry; |
aoqi@1 | 160 | } |
aoqi@1 | 161 | |
aoqi@1 | 162 | |
aoqi@1 | 163 | address TemplateInterpreterGenerator::generate_continuation_for(TosState state) { |
aoqi@1 | 164 | address entry = __ pc(); |
aoqi@1 | 165 | // NULL last_sp until next java call |
aoqi@6880 | 166 | __ sd(R0,Address(FP, frame::interpreter_frame_last_sp_offset * wordSize)); |
aoqi@6880 | 167 | __ dispatch_next(state); |
aoqi@1 | 168 | return entry; |
aoqi@1 | 169 | } |
aoqi@1 | 170 | |
aoqi@1 | 171 | |
aoqi@1 | 172 | address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, size_t index_size) { |
aoqi@1 | 173 | |
aoqi@1 | 174 | address entry = __ pc(); |
aoqi@1 | 175 | |
aoqi@1 | 176 | // Restore stack bottom in case i2c adjusted stack |
aoqi@1 | 177 | __ ld(SP, Address(FP, frame::interpreter_frame_last_sp_offset * wordSize)); |
aoqi@1 | 178 | // and NULL it as marker that esp is now tos until next java call |
aoqi@1 | 179 | __ sd(R0, FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 180 | |
aoqi@1 | 181 | __ restore_bcp(); |
aoqi@1 | 182 | __ restore_locals(); |
aoqi@6880 | 183 | |
aoqi@1 | 184 | // 2014/11/24 Fu |
aoqi@1 | 185 | // mdp: T8 |
aoqi@6880 | 186 | // ret: FSR |
aoqi@1 | 187 | // tmp: T9 |
aoqi@1 | 188 | if (state == atos) { |
aoqi@1 | 189 | Register mdp = T8; |
aoqi@1 | 190 | Register tmp = T9; |
aoqi@1 | 191 | __ profile_return_type(mdp, FSR, tmp); |
aoqi@1 | 192 | } |
aoqi@1 | 193 | |
aoqi@1 | 194 | |
aoqi@1 | 195 | const Register cache = T9; |
aoqi@1 | 196 | const Register index = T3; |
aoqi@1 | 197 | __ get_cache_and_index_at_bcp(cache, index, 1, index_size); |
aoqi@1 | 198 | |
aoqi@1 | 199 | const Register flags = cache; |
aoqi@1 | 200 | __ dsll(AT, index, Address::times_ptr); |
aoqi@1 | 201 | __ daddu(AT, cache, AT); |
aoqi@1 | 202 | __ lw(flags, AT, in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
aoqi@1 | 203 | __ andi(flags, flags, ConstantPoolCacheEntry::parameter_size_mask); |
aoqi@1 | 204 | __ dsll(AT, flags, Interpreter::stackElementScale()); |
aoqi@1 | 205 | __ daddu(SP, SP, AT); |
aoqi@1 | 206 | |
aoqi@1 | 207 | __ dispatch_next(state, step); |
aoqi@1 | 208 | |
aoqi@1 | 209 | return entry; |
aoqi@1 | 210 | } |
aoqi@1 | 211 | |
aoqi@1 | 212 | |
aoqi@1 | 213 | address TemplateInterpreterGenerator::generate_deopt_entry_for(TosState state, |
aoqi@1 | 214 | int step) { |
aoqi@1 | 215 | address entry = __ pc(); |
aoqi@1 | 216 | // NULL last_sp until next java call |
aoqi@1 | 217 | __ sd(R0, FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 218 | __ restore_bcp(); |
aoqi@1 | 219 | __ restore_locals(); |
aoqi@1 | 220 | // handle exceptions |
aoqi@1 | 221 | { |
aoqi@1 | 222 | Label L; |
aoqi@6880 | 223 | const Register thread = TREG; |
aoqi@1 | 224 | #ifndef OPT_THREAD |
aoqi@6880 | 225 | __ get_thread(thread); |
aoqi@1 | 226 | #endif |
aoqi@6880 | 227 | __ lw(AT, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@6880 | 228 | __ beq(AT, R0, L); |
aoqi@6880 | 229 | __ delayed()->nop(); |
aoqi@6880 | 230 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_pending_exception)); |
aoqi@6880 | 231 | __ should_not_reach_here(); |
aoqi@6880 | 232 | __ bind(L); |
aoqi@1 | 233 | } |
aoqi@1 | 234 | __ dispatch_next(state, step); |
aoqi@1 | 235 | return entry; |
aoqi@1 | 236 | } |
aoqi@1 | 237 | |
aoqi@1 | 238 | int AbstractInterpreter::BasicType_as_index(BasicType type) { |
aoqi@1 | 239 | int i = 0; |
aoqi@1 | 240 | switch (type) { |
aoqi@1 | 241 | case T_BOOLEAN: i = 0; break; |
aoqi@1 | 242 | case T_CHAR : i = 1; break; |
aoqi@1 | 243 | case T_BYTE : i = 2; break; |
aoqi@1 | 244 | case T_SHORT : i = 3; break; |
aoqi@6880 | 245 | case T_INT : // fall through |
aoqi@6880 | 246 | case T_LONG : // fall through |
aoqi@6880 | 247 | case T_VOID : i = 4; break; |
aoqi@6880 | 248 | case T_FLOAT : i = 5; break; |
aoqi@6880 | 249 | case T_DOUBLE : i = 6; break; |
aoqi@6880 | 250 | case T_OBJECT : // fall through |
aoqi@6880 | 251 | case T_ARRAY : i = 7; break; |
aoqi@1 | 252 | default : ShouldNotReachHere(); |
aoqi@1 | 253 | } |
aoqi@1 | 254 | assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, |
aoqi@1 | 255 | "index out of bounds"); |
aoqi@1 | 256 | return i; |
aoqi@1 | 257 | } |
aoqi@1 | 258 | |
aoqi@1 | 259 | |
aoqi@1 | 260 | address TemplateInterpreterGenerator::generate_result_handler_for( |
aoqi@1 | 261 | BasicType type) { |
aoqi@6880 | 262 | address entry = __ pc(); |
aoqi@6880 | 263 | switch (type) { |
aoqi@6880 | 264 | case T_BOOLEAN: __ c2bool(V0); break; |
aoqi@6880 | 265 | case T_CHAR : __ andi(V0, V0, 0xFFFF); break; |
aoqi@6880 | 266 | case T_BYTE : __ sign_extend_byte (V0); break; |
aoqi@6880 | 267 | case T_SHORT : __ sign_extend_short(V0); break; |
aoqi@6880 | 268 | case T_INT : /* nothing to do */ break; |
aoqi@6880 | 269 | case T_FLOAT : /* nothing to do */ break; |
aoqi@6880 | 270 | case T_DOUBLE : /* nothing to do */ break; |
aoqi@6880 | 271 | case T_OBJECT : |
aoqi@6880 | 272 | { |
aoqi@6880 | 273 | __ ld(V0, FP, frame::interpreter_frame_oop_temp_offset * wordSize); |
aoqi@6880 | 274 | __ verify_oop(V0); // and verify it |
aoqi@6880 | 275 | } |
aoqi@6880 | 276 | break; |
aoqi@6880 | 277 | default : ShouldNotReachHere(); |
aoqi@6880 | 278 | } |
aoqi@6880 | 279 | __ jr(RA); // return from result handler |
aoqi@6880 | 280 | __ delayed()->nop(); |
aoqi@6880 | 281 | return entry; |
aoqi@1 | 282 | } |
aoqi@1 | 283 | |
aoqi@1 | 284 | address TemplateInterpreterGenerator::generate_safept_entry_for( |
aoqi@1 | 285 | TosState state, |
aoqi@1 | 286 | address runtime_entry) { |
aoqi@1 | 287 | address entry = __ pc(); |
aoqi@1 | 288 | __ push(state); |
aoqi@1 | 289 | __ call_VM(noreg, runtime_entry); |
aoqi@1 | 290 | __ dispatch_via(vtos, Interpreter::_normal_table.table_for(vtos)); |
aoqi@1 | 291 | return entry; |
aoqi@1 | 292 | } |
aoqi@1 | 293 | |
aoqi@1 | 294 | |
aoqi@1 | 295 | |
aoqi@1 | 296 | // Helpers for commoning out cases in the various type of method entries. |
aoqi@1 | 297 | // |
aoqi@1 | 298 | |
aoqi@1 | 299 | |
aoqi@1 | 300 | // increment invocation count & check for overflow |
aoqi@1 | 301 | // |
aoqi@1 | 302 | // Note: checking for negative value instead of overflow |
aoqi@1 | 303 | // so we have a 'sticky' overflow test |
aoqi@1 | 304 | // |
aoqi@1 | 305 | // prerequisites : method in T0, invocation counter in T3 |
aoqi@1 | 306 | void InterpreterGenerator::generate_counter_incr( |
aoqi@1 | 307 | Label* overflow, |
aoqi@1 | 308 | Label* profile_method, |
aoqi@6880 | 309 | Label* profile_method_continue) { |
aoqi@1 | 310 | Label done; |
fujie@6895 | 311 | const Address invocation_counter(FSR, in_bytes(MethodCounters::invocation_counter_offset()) |
aoqi@1 | 312 | + in_bytes(InvocationCounter::counter_offset())); |
aoqi@6880 | 313 | const Address backedge_counter (FSR, in_bytes(MethodCounters::backedge_counter_offset()) |
aoqi@1 | 314 | + in_bytes(InvocationCounter::counter_offset())); |
aoqi@1 | 315 | |
aoqi@1 | 316 | __ get_method_counters(Rmethod, FSR, done); |
aoqi@1 | 317 | |
aoqi@1 | 318 | if (ProfileInterpreter) { // %%% Merge this into methodDataOop |
aoqi@1 | 319 | __ lw(T9, FSR, in_bytes(MethodCounters::interpreter_invocation_counter_offset())); |
aoqi@1 | 320 | __ incrementl(T9, 1); |
aoqi@1 | 321 | __ sw(T9, FSR, in_bytes(MethodCounters::interpreter_invocation_counter_offset())); |
aoqi@1 | 322 | } |
aoqi@1 | 323 | // Update standard invocation counters |
aoqi@1 | 324 | __ lw(T3, invocation_counter); |
aoqi@1 | 325 | __ increment(T3, InvocationCounter::count_increment); |
aoqi@1 | 326 | __ sw(T3, invocation_counter); // save invocation count |
aoqi@1 | 327 | |
aoqi@1 | 328 | __ lw(FSR, backedge_counter); // load backedge counter |
aoqi@1 | 329 | __ li(AT, InvocationCounter::count_mask_value); // mask out the status bits |
aoqi@1 | 330 | __ andr(FSR, FSR, AT); |
aoqi@1 | 331 | |
aoqi@1 | 332 | __ dadd(T3, T3, FSR); // add both counters |
aoqi@1 | 333 | |
aoqi@1 | 334 | if (ProfileInterpreter && profile_method != NULL) { |
aoqi@1 | 335 | // Test to see if we should create a method data oop |
fujie@6895 | 336 | if (Assembler::is_simm16(InvocationCounter::InterpreterProfileLimit)) { |
fujie@6895 | 337 | __ slti(AT, T3, InvocationCounter::InterpreterProfileLimit); |
fujie@6895 | 338 | } else { |
fujie@6895 | 339 | __ li(AT, (long)&InvocationCounter::InterpreterProfileLimit); |
fujie@6895 | 340 | __ lw(AT, AT, 0); |
fujie@6895 | 341 | __ slt(AT, T3, AT); |
fujie@6895 | 342 | } |
fujie@6895 | 343 | |
fujie@6896 | 344 | __ bne_far(AT, R0, *profile_method_continue); |
aoqi@1 | 345 | __ delayed()->nop(); |
aoqi@1 | 346 | |
aoqi@1 | 347 | // if no method data exists, go to profile_method |
aoqi@1 | 348 | __ test_method_data_pointer(FSR, *profile_method); |
aoqi@1 | 349 | } |
aoqi@1 | 350 | |
fujie@6895 | 351 | if (Assembler::is_simm16(CompileThreshold)) { |
fujie@6895 | 352 | __ srl(AT, T3, InvocationCounter::count_shift); |
fujie@6895 | 353 | __ slti(AT, AT, CompileThreshold); |
fujie@6895 | 354 | } else { |
fujie@6895 | 355 | __ li(AT, (long)&InvocationCounter::InterpreterInvocationLimit); |
fujie@6895 | 356 | __ lw(AT, AT, 0); |
fujie@6895 | 357 | __ slt(AT, T3, AT); |
fujie@6895 | 358 | } |
fujie@6895 | 359 | |
fujie@6896 | 360 | __ beq_far(AT, R0, *overflow); |
aoqi@1 | 361 | __ delayed()->nop(); |
aoqi@1 | 362 | __ bind(done); |
aoqi@1 | 363 | } |
aoqi@1 | 364 | |
aoqi@1 | 365 | void InterpreterGenerator::generate_counter_overflow(Label* do_continue) { |
aoqi@1 | 366 | |
aoqi@6880 | 367 | // Asm interpreter on entry |
aoqi@6880 | 368 | // S7 - locals |
aoqi@6880 | 369 | // S0 - bcp |
aoqi@6880 | 370 | // Rmethod - method |
aoqi@6880 | 371 | // FP - interpreter frame |
aoqi@1 | 372 | |
aoqi@6880 | 373 | // On return (i.e. jump to entry_point) |
aoqi@6880 | 374 | // Rmethod - method |
aoqi@6880 | 375 | // RA - return address of interpreter caller |
aoqi@6880 | 376 | // tos - the last parameter to Java method |
aoqi@6880 | 377 | // SP - sender_sp |
aoqi@1 | 378 | |
aoqi@6880 | 379 | //const Address size_of_parameters(Rmethod,in_bytes( Method::size_of_parameters_offset())); |
aoqi@1 | 380 | |
aoqi@6880 | 381 | // the bcp is valid if and only if it's not null |
aoqi@6880 | 382 | __ call_VM(NOREG, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 383 | InterpreterRuntime::frequency_counter_overflow), R0); |
aoqi@6880 | 384 | __ ld(Rmethod, FP, method_offset); |
aoqi@6880 | 385 | // Preserve invariant that esi/edi contain bcp/locals of sender frame |
fujie@6896 | 386 | __ b_far(*do_continue); |
aoqi@6880 | 387 | __ delayed()->nop(); |
aoqi@1 | 388 | } |
aoqi@1 | 389 | |
aoqi@1 | 390 | // See if we've got enough room on the stack for locals plus overhead. |
aoqi@1 | 391 | // The expression stack grows down incrementally, so the normal guard |
aoqi@1 | 392 | // page mechanism will work for that. |
aoqi@1 | 393 | // |
aoqi@1 | 394 | // NOTE: Since the additional locals are also always pushed (wasn't |
aoqi@1 | 395 | // obvious in generate_method_entry) so the guard should work for them |
aoqi@1 | 396 | // too. |
aoqi@1 | 397 | // |
aoqi@1 | 398 | // Args: |
aoqi@1 | 399 | // rdx: number of additional locals this frame needs (what we must check) |
aoqi@1 | 400 | // rbx: Method* |
aoqi@1 | 401 | // |
aoqi@1 | 402 | // Kills: |
aoqi@1 | 403 | // rax |
aoqi@1 | 404 | void InterpreterGenerator::generate_stack_overflow_check(void) { |
aoqi@1 | 405 | // see if we've got enough room on the stack for locals plus overhead. |
aoqi@1 | 406 | // the expression stack grows down incrementally, so the normal guard |
aoqi@1 | 407 | // page mechanism will work for that. |
aoqi@1 | 408 | // |
aoqi@1 | 409 | // Registers live on entry: |
aoqi@1 | 410 | // |
aoqi@1 | 411 | // T0: Method* |
aoqi@1 | 412 | // T2: number of additional locals this frame needs (what we must check) |
aoqi@1 | 413 | |
aoqi@1 | 414 | // NOTE: since the additional locals are also always pushed (wasn't obvious in |
aoqi@6880 | 415 | // generate_method_entry) so the guard should work for them too. |
aoqi@1 | 416 | // |
aoqi@1 | 417 | |
aoqi@1 | 418 | // monitor entry size: see picture of stack set (generate_method_entry) and frame_i486.hpp |
aoqi@1 | 419 | const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; |
aoqi@1 | 420 | |
aoqi@1 | 421 | // total overhead size: entry_size + (saved ebp thru expr stack bottom). |
aoqi@1 | 422 | // be sure to change this if you add/subtract anything to/from the overhead area |
aoqi@6880 | 423 | const int overhead_size = -(frame::interpreter_frame_initial_sp_offset*wordSize) |
aoqi@1 | 424 | + entry_size; |
aoqi@1 | 425 | |
aoqi@1 | 426 | const int page_size = os::vm_page_size(); |
aoqi@1 | 427 | |
aoqi@1 | 428 | Label after_frame_check; |
aoqi@1 | 429 | |
aoqi@1 | 430 | // see if the frame is greater than one page in size. If so, |
aoqi@1 | 431 | // then we need to verify there is enough stack space remaining |
aoqi@1 | 432 | // for the additional locals. |
aoqi@1 | 433 | __ move(AT, (page_size - overhead_size) / Interpreter::stackElementSize); |
aoqi@1 | 434 | __ slt(AT, AT, T2); |
aoqi@1 | 435 | __ beq(AT, R0, after_frame_check); |
aoqi@1 | 436 | __ delayed()->nop(); |
aoqi@1 | 437 | |
aoqi@1 | 438 | // compute sp as if this were going to be the last frame on |
aoqi@1 | 439 | // the stack before the red zone |
aoqi@1 | 440 | #ifndef OPT_THREAD |
aoqi@1 | 441 | Register thread = T1; |
aoqi@1 | 442 | __ get_thread(thread); |
aoqi@1 | 443 | #else |
aoqi@1 | 444 | Register thread = TREG; |
aoqi@1 | 445 | #endif |
aoqi@1 | 446 | |
aoqi@1 | 447 | // locals + overhead, in bytes |
aoqi@6880 | 448 | __ dsll(T3, T2, Interpreter::stackElementScale()); |
aoqi@6880 | 449 | __ daddiu(T3, T3, overhead_size); // locals * 4 + overhead_size --> T3 |
aoqi@1 | 450 | |
aoqi@1 | 451 | #ifdef ASSERT |
aoqi@1 | 452 | Label stack_base_okay, stack_size_okay; |
aoqi@1 | 453 | // verify that thread stack base is non-zero |
aoqi@1 | 454 | __ ld(AT, thread, in_bytes(Thread::stack_base_offset())); |
aoqi@1 | 455 | __ bne(AT, R0, stack_base_okay); |
aoqi@1 | 456 | __ delayed()->nop(); |
aoqi@1 | 457 | __ stop("stack base is zero"); |
aoqi@1 | 458 | __ bind(stack_base_okay); |
aoqi@1 | 459 | // verify that thread stack size is non-zero |
aoqi@1 | 460 | __ ld(AT, thread, in_bytes(Thread::stack_size_offset())); |
aoqi@1 | 461 | __ bne(AT, R0, stack_size_okay); |
aoqi@1 | 462 | __ delayed()->nop(); |
aoqi@1 | 463 | __ stop("stack size is zero"); |
aoqi@1 | 464 | __ bind(stack_size_okay); |
aoqi@1 | 465 | #endif |
aoqi@1 | 466 | |
aoqi@1 | 467 | // Add stack base to locals and subtract stack size |
aoqi@1 | 468 | __ ld(AT, thread, in_bytes(Thread::stack_base_offset())); // stack_base --> AT |
aoqi@6880 | 469 | __ dadd(T3, T3, AT); // locals * 4 + overhead_size + stack_base--> T3 |
aoqi@1 | 470 | __ ld(AT, thread, in_bytes(Thread::stack_size_offset())); // stack_size --> AT |
aoqi@6880 | 471 | __ dsub(T3, T3, AT); // locals * 4 + overhead_size + stack_base - stack_size --> T3 |
aoqi@1 | 472 | |
aoqi@1 | 473 | |
aoqi@1 | 474 | // add in the redzone and yellow size |
aoqi@1 | 475 | __ move(AT, (StackRedPages+StackYellowPages) * page_size); |
aoqi@1 | 476 | __ add(T3, T3, AT); |
aoqi@1 | 477 | |
aoqi@1 | 478 | // check against the current stack bottom |
aoqi@1 | 479 | __ slt(AT, T3, SP); |
aoqi@1 | 480 | __ bne(AT, R0, after_frame_check); |
aoqi@1 | 481 | __ delayed()->nop(); |
fujie@407 | 482 | |
fujie@407 | 483 | // Note: the restored frame is not necessarily interpreted. |
fujie@407 | 484 | // Use the shared runtime version of the StackOverflowError. |
fujie@407 | 485 | __ move(SP, Rsender); |
fujie@407 | 486 | assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated"); |
fujie@407 | 487 | __ jmp(StubRoutines::throw_StackOverflowError_entry(), relocInfo::runtime_call_type); |
aoqi@1 | 488 | __ delayed()->nop(); |
aoqi@1 | 489 | |
aoqi@1 | 490 | // all done with frame size check |
aoqi@1 | 491 | __ bind(after_frame_check); |
aoqi@1 | 492 | } |
aoqi@1 | 493 | |
aoqi@1 | 494 | // Allocate monitor and lock method (asm interpreter) |
aoqi@1 | 495 | // Rmethod - Method* |
aoqi@1 | 496 | void InterpreterGenerator::lock_method(void) { |
aoqi@1 | 497 | // synchronize method |
aoqi@1 | 498 | const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; |
aoqi@1 | 499 | |
aoqi@1 | 500 | #ifdef ASSERT |
aoqi@1 | 501 | { Label L; |
aoqi@1 | 502 | __ lw(T0, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 503 | __ andi(T0, T0, JVM_ACC_SYNCHRONIZED); |
aoqi@1 | 504 | __ bne(T0, R0, L); |
aoqi@1 | 505 | __ delayed()->nop(); |
aoqi@1 | 506 | __ stop("method doesn't need synchronization"); |
aoqi@1 | 507 | __ bind(L); |
aoqi@1 | 508 | } |
aoqi@1 | 509 | #endif // ASSERT |
aoqi@1 | 510 | // get synchronization object |
aoqi@6880 | 511 | { |
aoqi@6880 | 512 | Label done; |
aoqi@1 | 513 | const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
aoqi@1 | 514 | __ lw(T0, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 515 | __ andi(T2, T0, JVM_ACC_STATIC); |
aoqi@6880 | 516 | __ ld(T0, LVP, Interpreter::local_offset_in_bytes(0)); |
aoqi@1 | 517 | __ beq(T2, R0, done); |
aoqi@1 | 518 | __ delayed()->nop(); |
aoqi@1 | 519 | __ ld(T0, Rmethod, in_bytes(Method::const_offset())); |
aoqi@1 | 520 | __ ld(T0, T0, in_bytes(ConstMethod::constants_offset())); |
aoqi@1 | 521 | __ ld(T0, T0, ConstantPool::pool_holder_offset_in_bytes()); |
aoqi@1 | 522 | __ ld(T0, T0, mirror_offset); |
aoqi@1 | 523 | __ bind(done); |
aoqi@1 | 524 | } |
aoqi@1 | 525 | // add space for monitor & lock |
aoqi@1 | 526 | __ daddi(SP, SP, (-1) * entry_size); // add space for a monitor entry |
aoqi@1 | 527 | __ sd(SP, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
aoqi@1 | 528 | // set new monitor block top |
aoqi@1 | 529 | __ sd(T0, SP, BasicObjectLock::obj_offset_in_bytes()); // store object |
aoqi@1 | 530 | // FIXME: I do not know what lock_object will do and what it will need |
aoqi@1 | 531 | __ move(c_rarg0, SP); // object address |
aoqi@6880 | 532 | __ lock_object(c_rarg0); |
aoqi@1 | 533 | } |
aoqi@1 | 534 | |
aoqi@1 | 535 | // Generate a fixed interpreter frame. This is identical setup for |
aoqi@1 | 536 | // interpreted methods and for native methods hence the shared code. |
aoqi@1 | 537 | void TemplateInterpreterGenerator::generate_fixed_frame(bool native_call) { |
aoqi@1 | 538 | |
aoqi@1 | 539 | // [ local var m-1 ] <--- sp |
aoqi@1 | 540 | // ... |
aoqi@6880 | 541 | // [ local var 0 ] |
aoqi@1 | 542 | // [ argumnet word n-1 ] <--- T0(sender's sp) |
aoqi@1 | 543 | // ... |
aoqi@1 | 544 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 545 | |
aoqi@1 | 546 | // initialize fixed part of activation frame |
aoqi@1 | 547 | // sender's sp in Rsender |
aoqi@1 | 548 | int i = 0; |
aoqi@6880 | 549 | __ sd(RA, SP, (-1) * wordSize); // save return address |
aoqi@6880 | 550 | __ sd(FP, SP, (-2) * wordSize); // save sender's fp |
aoqi@1 | 551 | __ daddiu(FP, SP, (-2) * wordSize); |
aoqi@6880 | 552 | __ sd(Rsender, FP, (-++i) * wordSize); // save sender's sp |
aoqi@9228 | 553 | __ sd(R0, FP,(-++i)*wordSize); //save last_sp as null |
aoqi@6880 | 554 | __ sd(LVP, FP, (-++i) * wordSize); // save locals offset |
aoqi@1 | 555 | __ ld(BCP, Rmethod, in_bytes(Method::const_offset())); // get constMethodOop |
aoqi@1 | 556 | __ daddiu(BCP, BCP, in_bytes(ConstMethod::codes_offset())); // get codebase |
aoqi@1 | 557 | __ sd(Rmethod, FP, (-++i) * wordSize); // save Method* |
aoqi@1 | 558 | #ifndef CORE |
aoqi@1 | 559 | if (ProfileInterpreter) { |
aoqi@1 | 560 | Label method_data_continue; |
aoqi@6880 | 561 | __ ld(AT, Rmethod, in_bytes(Method::method_data_offset())); |
aoqi@6880 | 562 | __ beq(AT, R0, method_data_continue); |
aoqi@6880 | 563 | __ delayed()->nop(); |
aoqi@6880 | 564 | __ daddi(AT, AT, in_bytes(MethodData::data_offset())); |
aoqi@1 | 565 | __ bind(method_data_continue); |
aoqi@1 | 566 | __ sd(AT, FP, (-++i) * wordSize); |
aoqi@1 | 567 | } else { |
aoqi@1 | 568 | __ sd(R0, FP, (-++i) * wordSize); |
aoqi@1 | 569 | } |
aoqi@1 | 570 | #endif // !CORE |
aoqi@1 | 571 | |
aoqi@1 | 572 | __ ld(T2, Rmethod, in_bytes(Method::const_offset())); |
aoqi@1 | 573 | __ ld(T2, T2, in_bytes(ConstMethod::constants_offset())); |
aoqi@1 | 574 | __ ld(T2, T2, ConstantPool::cache_offset_in_bytes()); |
aoqi@1 | 575 | __ sd(T2, FP, (-++i) * wordSize); // set constant pool cache |
aoqi@1 | 576 | if (native_call) { |
aoqi@6880 | 577 | __ sd(R0, FP, (-++i) * wordSize); // no bcp |
aoqi@1 | 578 | } else { |
aoqi@6880 | 579 | __ sd(BCP, FP, (-++i) * wordSize); // set bcp |
aoqi@1 | 580 | } |
aoqi@1 | 581 | __ daddiu(SP, FP, (-++i) * wordSize); |
aoqi@6880 | 582 | __ sd(SP, FP, (-i) * wordSize); // reserve word for pointer to expression stack bottom |
aoqi@1 | 583 | } |
aoqi@1 | 584 | |
aoqi@1 | 585 | // End of helpers |
aoqi@1 | 586 | |
aoqi@1 | 587 | // Various method entries |
aoqi@1 | 588 | //------------------------------------------------------------------------------------------------------------------------ |
aoqi@1 | 589 | // |
aoqi@1 | 590 | // |
aoqi@1 | 591 | |
aoqi@1 | 592 | // Call an accessor method (assuming it is resolved, otherwise drop |
aoqi@1 | 593 | // into vanilla (slow path) entry |
aoqi@1 | 594 | address InterpreterGenerator::generate_accessor_entry(void) { |
aoqi@1 | 595 | |
aoqi@1 | 596 | // Rmethod: Method* |
aoqi@1 | 597 | // V0: receiver (preserve for slow entry into asm interpreter) |
aoqi@1 | 598 | // Rsender: senderSP must preserved for slow path, set SP to it on fast path |
aoqi@1 | 599 | |
aoqi@1 | 600 | address entry_point = __ pc(); |
aoqi@1 | 601 | Label xreturn_path; |
aoqi@1 | 602 | // do fastpath for resolved accessor methods |
aoqi@1 | 603 | if (UseFastAccessorMethods) { |
aoqi@1 | 604 | Label slow_path; |
aoqi@6880 | 605 | __ li(T2, SafepointSynchronize::address_of_state()); |
aoqi@1 | 606 | __ lw(AT, T2, 0); |
aoqi@1 | 607 | __ daddi(AT, AT, -(SafepointSynchronize::_not_synchronized)); |
aoqi@6880 | 608 | __ bne(AT, R0, slow_path); |
aoqi@6880 | 609 | __ delayed()->nop(); |
aoqi@6880 | 610 | // Code: _aload_0, _(i|a)getfield, _(i|a)return or any rewrites thereof; |
aoqi@1 | 611 | // parameter size = 1 |
aoqi@1 | 612 | // Note: We can only use this code if the getfield has been resolved |
aoqi@1 | 613 | // and if we don't have a null-pointer exception => check for |
aoqi@1 | 614 | // these conditions first and use slow path if necessary. |
aoqi@1 | 615 | // Rmethod: method |
aoqi@1 | 616 | // V0: receiver |
aoqi@1 | 617 | |
aoqi@1 | 618 | // [ receiver ] <-- sp |
aoqi@1 | 619 | __ ld(T0, SP, 0); |
aoqi@1 | 620 | |
aoqi@1 | 621 | // check if local 0 != NULL and read field |
aoqi@1 | 622 | __ beq(T0, R0, slow_path); |
aoqi@1 | 623 | __ delayed()->nop(); |
aoqi@1 | 624 | __ ld(T2, Rmethod, in_bytes(Method::const_offset())); |
aoqi@1 | 625 | __ ld(T2, T2, in_bytes(ConstMethod::constants_offset())); |
aoqi@1 | 626 | // read first instruction word and extract bytecode @ 1 and index @ 2 |
aoqi@1 | 627 | __ ld(T3, Rmethod, in_bytes(Method::const_offset())); |
aoqi@1 | 628 | __ lw(T3, T3, in_bytes(ConstMethod::codes_offset())); |
aoqi@1 | 629 | // Shift codes right to get the index on the right. |
aoqi@1 | 630 | // The bytecode fetched looks like <index><0xb4><0x2a> |
aoqi@1 | 631 | __ dsrl(T3, T3, 2 * BitsPerByte); |
aoqi@1 | 632 | // FIXME: maybe it's wrong |
aoqi@1 | 633 | __ dsll(T3, T3, exact_log2(in_words(ConstantPoolCacheEntry::size()))); |
aoqi@1 | 634 | __ ld(T2, T2, ConstantPool::cache_offset_in_bytes()); |
aoqi@1 | 635 | |
aoqi@1 | 636 | // T0: local 0 eax |
aoqi@1 | 637 | // Rmethod: method ebx |
aoqi@1 | 638 | // V0: receiver - do not destroy since it is needed for slow path! ecx |
aoqi@6880 | 639 | // ecx: scratch use which register instead ? |
aoqi@6880 | 640 | // T1: scratch use which register instead ? |
aoqi@6880 | 641 | // T3: constant pool cache index edx |
aoqi@6880 | 642 | // T2: constant pool cache edi |
aoqi@1 | 643 | // esi: send's sp |
aoqi@1 | 644 | // Rsender: send's sp |
aoqi@1 | 645 | // check if getfield has been resolved and read constant pool cache entry |
aoqi@1 | 646 | // check the validity of the cache entry by testing whether _indices field |
aoqi@1 | 647 | // contains Bytecode::_getfield in b1 byte. |
aoqi@1 | 648 | assert(in_words(ConstantPoolCacheEntry::size()) == 4, "adjust shift below"); |
aoqi@6880 | 649 | // __ movl(esi, |
aoqi@6880 | 650 | // Address(edi, |
aoqi@6880 | 651 | // edx, |
aoqi@6880 | 652 | // Address::times_4, ConstantPoolCache::base_offset() |
aoqi@6880 | 653 | // + ConstantPoolCacheEntry::indices_offset())); |
aoqi@1 | 654 | |
aoqi@1 | 655 | |
aoqi@1 | 656 | __ dsll(T8, T3, Address::times_8); |
aoqi@6880 | 657 | __ move(T1, in_bytes(ConstantPoolCache::base_offset() |
aoqi@6880 | 658 | + ConstantPoolCacheEntry::indices_offset())); |
aoqi@1 | 659 | __ dadd(T1, T8, T1); |
aoqi@1 | 660 | __ dadd(T1, T1, T2); |
aoqi@1 | 661 | __ lw(T1, T1, 0); |
aoqi@1 | 662 | __ dsrl(T1, T1, 2 * BitsPerByte); |
aoqi@1 | 663 | __ andi(T1, T1, 0xFF); |
aoqi@1 | 664 | __ daddi(T1, T1, (-1) * Bytecodes::_getfield); |
aoqi@1 | 665 | __ bne(T1, R0, slow_path); |
aoqi@1 | 666 | __ delayed()->nop(); |
aoqi@1 | 667 | |
aoqi@1 | 668 | // Note: constant pool entry is not valid before bytecode is resolved |
aoqi@1 | 669 | |
aoqi@6880 | 670 | __ move(T1, in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset())); |
aoqi@1 | 671 | __ dadd(T1, T1, T8); |
aoqi@1 | 672 | __ dadd(T1, T1, T2); |
aoqi@1 | 673 | __ lw(AT, T1, 0); |
aoqi@1 | 674 | |
aoqi@6880 | 675 | __ move(T1, in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset())); |
aoqi@1 | 676 | __ dadd(T1, T1, T8); |
aoqi@1 | 677 | __ dadd(T1, T1, T2); |
aoqi@1 | 678 | __ lw(T3, T1, 0); |
aoqi@1 | 679 | |
fujie@8858 | 680 | Label notByte, notBool, notShort, notChar, notObj; |
aoqi@1 | 681 | // const Address field_address (eax, esi, Address::times_1); |
aoqi@1 | 682 | |
aoqi@1 | 683 | // Need to differentiate between igetfield, agetfield, bgetfield etc. |
aoqi@1 | 684 | // because they are different sizes. |
aoqi@1 | 685 | // Use the type from the constant pool cache |
fujie@8864 | 686 | __ srl(T3, T3, ConstantPoolCacheEntry::tos_state_shift); |
aoqi@1 | 687 | // Make sure we don't need to mask edx for tosBits after the above shift |
aoqi@1 | 688 | ConstantPoolCacheEntry::verify_tos_state_shift(); |
aoqi@1 | 689 | // btos = 0 |
aoqi@1 | 690 | __ bne(T3, R0, notByte); |
aoqi@1 | 691 | __ delayed()->dadd(T0, T0, AT); |
aoqi@1 | 692 | |
aoqi@1 | 693 | __ lb(V0, T0, 0); |
aoqi@1 | 694 | __ b(xreturn_path); |
aoqi@1 | 695 | __ delayed()->nop(); |
aoqi@1 | 696 | |
fujie@8858 | 697 | //ztos |
fujie@8858 | 698 | __ bind(notByte); |
fujie@8858 | 699 | __ daddi(T1, T3, (-1) * ztos); |
fujie@8858 | 700 | __ bne(T1, R0, notBool); |
fujie@8858 | 701 | __ delayed()->nop(); |
fujie@8858 | 702 | __ lb(V0, T0, 0); |
fujie@8858 | 703 | __ b(xreturn_path); |
fujie@8858 | 704 | __ delayed()->nop(); |
fujie@8858 | 705 | |
aoqi@1 | 706 | //stos |
fujie@8858 | 707 | __ bind(notBool); |
aoqi@1 | 708 | __ daddi(T1, T3, (-1) * stos); |
aoqi@1 | 709 | __ bne(T1, R0, notShort); |
aoqi@1 | 710 | __ delayed()->nop(); |
aoqi@1 | 711 | __ lh(V0, T0, 0); |
aoqi@1 | 712 | __ b(xreturn_path); |
aoqi@1 | 713 | __ delayed()->nop(); |
aoqi@1 | 714 | |
aoqi@1 | 715 | //ctos |
aoqi@1 | 716 | __ bind(notShort); |
aoqi@1 | 717 | __ daddi(T1, T3, (-1) * ctos); |
aoqi@1 | 718 | __ bne(T1, R0, notChar); |
aoqi@1 | 719 | __ delayed()->nop(); |
aoqi@1 | 720 | __ lhu(V0, T0, 0); |
aoqi@1 | 721 | __ b(xreturn_path); |
aoqi@1 | 722 | __ delayed()->nop(); |
aoqi@6880 | 723 | |
aoqi@1 | 724 | //atos |
aoqi@1 | 725 | __ bind(notChar); |
aoqi@1 | 726 | __ daddi(T1, T3, (-1) * atos); |
aoqi@1 | 727 | __ bne(T1, R0, notObj); |
aoqi@1 | 728 | __ delayed()->nop(); |
aoqi@1 | 729 | //add for compressedoops |
aoqi@1 | 730 | __ load_heap_oop(V0, Address(T0, 0)); |
aoqi@1 | 731 | __ b(xreturn_path); |
aoqi@1 | 732 | __ delayed()->nop(); |
aoqi@1 | 733 | |
aoqi@1 | 734 | //itos |
aoqi@1 | 735 | __ bind(notObj); |
aoqi@1 | 736 | #ifdef ASSERT |
aoqi@1 | 737 | Label okay; |
aoqi@1 | 738 | __ daddi(T1, T3, (-1) * itos); |
aoqi@1 | 739 | __ beq(T1, R0, okay); |
aoqi@1 | 740 | __ delayed()->nop(); |
aoqi@1 | 741 | __ stop("what type is this?"); |
aoqi@1 | 742 | __ bind(okay); |
aoqi@1 | 743 | #endif // ASSERT |
aoqi@1 | 744 | __ lw(V0, T0, 0); |
aoqi@1 | 745 | |
aoqi@1 | 746 | __ bind(xreturn_path); |
aoqi@1 | 747 | |
aoqi@1 | 748 | // _ireturn/_areturn |
aoqi@6880 | 749 | //FIXME |
aoqi@6880 | 750 | __ move(SP, Rsender);//FIXME, set sender's fp to SP |
aoqi@1 | 751 | __ jr(RA); |
aoqi@1 | 752 | __ delayed()->nop(); |
aoqi@1 | 753 | |
aoqi@1 | 754 | // generate a vanilla interpreter entry as the slow path |
aoqi@1 | 755 | __ bind(slow_path); |
aoqi@1 | 756 | (void) generate_normal_entry(false); |
aoqi@1 | 757 | } else { |
aoqi@1 | 758 | (void) generate_normal_entry(false); |
aoqi@1 | 759 | } |
aoqi@1 | 760 | |
aoqi@1 | 761 | return entry_point; |
aoqi@1 | 762 | } |
aoqi@1 | 763 | |
aoqi@1 | 764 | // Method entry for java.lang.ref.Reference.get. |
aoqi@1 | 765 | address InterpreterGenerator::generate_Reference_get_entry(void) { |
aoqi@6880 | 766 | #if INCLUDE_ALL_GCS |
aoqi@1 | 767 | // Code: _aload_0, _getfield, _areturn |
aoqi@1 | 768 | // parameter size = 1 |
aoqi@1 | 769 | // |
aoqi@1 | 770 | // The code that gets generated by this routine is split into 2 parts: |
aoqi@1 | 771 | // 1. The "intrinsified" code for G1 (or any SATB based GC), |
aoqi@1 | 772 | // 2. The slow path - which is an expansion of the regular method entry. |
aoqi@1 | 773 | // |
aoqi@1 | 774 | // Notes:- |
aoqi@1 | 775 | // * In the G1 code we do not check whether we need to block for |
aoqi@1 | 776 | // a safepoint. If G1 is enabled then we must execute the specialized |
aoqi@1 | 777 | // code for Reference.get (except when the Reference object is null) |
aoqi@1 | 778 | // so that we can log the value in the referent field with an SATB |
aoqi@1 | 779 | // update buffer. |
aoqi@1 | 780 | // If the code for the getfield template is modified so that the |
aoqi@1 | 781 | // G1 pre-barrier code is executed when the current method is |
aoqi@1 | 782 | // Reference.get() then going through the normal method entry |
aoqi@1 | 783 | // will be fine. |
aoqi@1 | 784 | // * The G1 code can, however, check the receiver object (the instance |
aoqi@1 | 785 | // of java.lang.Reference) and jump to the slow path if null. If the |
aoqi@1 | 786 | // Reference object is null then we obviously cannot fetch the referent |
aoqi@1 | 787 | // and so we don't need to call the G1 pre-barrier. Thus we can use the |
aoqi@1 | 788 | // regular method entry code to generate the NPE. |
aoqi@1 | 789 | // |
aoqi@1 | 790 | // This code is based on generate_accessor_enty. |
aoqi@1 | 791 | // |
fujie@8004 | 792 | // rbx: Method* (Rmethod) |
aoqi@1 | 793 | |
fujie@8004 | 794 | // r13: senderSP must preserve for slow path, set SP to it on fast path (Rsender) |
fujie@8004 | 795 | |
fujie@8004 | 796 | // rax: V0 |
fujie@8004 | 797 | // rbx: Rmethod |
fujie@8004 | 798 | // r13: Rsender |
aoqi@8027 | 799 | // rdi: T9 |
aoqi@1 | 800 | |
aoqi@1 | 801 | address entry = __ pc(); |
aoqi@1 | 802 | |
aoqi@1 | 803 | const int referent_offset = java_lang_ref_Reference::referent_offset; |
aoqi@1 | 804 | guarantee(referent_offset > 0, "referent offset not initialized"); |
aoqi@1 | 805 | |
aoqi@1 | 806 | if (UseG1GC) { |
aoqi@1 | 807 | Label slow_path; |
aoqi@1 | 808 | |
aoqi@1 | 809 | // Check if local 0 != NULL |
aoqi@1 | 810 | // If the receiver is null then it is OK to jump to the slow path. |
fujie@8004 | 811 | __ ld(V0, SP, 0); |
fujie@8004 | 812 | |
fujie@8004 | 813 | __ beq(V0, R0, slow_path); |
zhaixiang@9144 | 814 | __ delayed()->nop(); |
aoqi@1 | 815 | |
aoqi@1 | 816 | // Generate the G1 pre-barrier code to log the value of |
aoqi@1 | 817 | // the referent field in an SATB buffer. |
aoqi@1 | 818 | |
aoqi@1 | 819 | // Load the value of the referent field. |
fujie@8004 | 820 | const Address field_address(V0, referent_offset); |
fujie@8004 | 821 | __ load_heap_oop(V0, field_address); |
fujie@8004 | 822 | |
fujie@8008 | 823 | __ push(RA); |
fujie@8004 | 824 | // Generate the G1 pre-barrier code to log the value of |
fujie@8004 | 825 | // the referent field in an SATB buffer. |
fujie@8004 | 826 | __ g1_write_barrier_pre(noreg /* obj */, |
fujie@8004 | 827 | V0 /* pre_val */, |
fujie@8004 | 828 | TREG /* thread */, |
fujie@8004 | 829 | Rmethod /* tmp */, |
fujie@8004 | 830 | true /* tosca_live */, |
fujie@8004 | 831 | true /* expand_call */); |
fujie@8008 | 832 | __ pop(RA); |
fujie@8004 | 833 | |
fujie@8004 | 834 | __ jr(RA); |
fujie@8008 | 835 | __ delayed()->daddu(SP, Rsender, R0); // set sp to sender sp |
fujie@8004 | 836 | |
fujie@8004 | 837 | // generate a vanilla interpreter entry as the slow path |
fujie@8004 | 838 | __ bind(slow_path); |
fujie@8004 | 839 | (void) generate_normal_entry(false); |
aoqi@1 | 840 | |
aoqi@1 | 841 | return entry; |
aoqi@1 | 842 | } |
aoqi@6880 | 843 | #endif // INCLUDE_ALL_GCS |
aoqi@1 | 844 | |
aoqi@1 | 845 | // If G1 is not enabled then attempt to go through the accessor entry point |
aoqi@1 | 846 | // Reference.get is an accessor |
aoqi@1 | 847 | return generate_accessor_entry(); |
aoqi@1 | 848 | } |
fujie@8004 | 849 | |
aoqi@1 | 850 | // Interpreter stub for calling a native method. (asm interpreter) |
aoqi@1 | 851 | // This sets up a somewhat different looking stack for calling the |
aoqi@1 | 852 | // native method than the typical interpreter frame setup. |
aoqi@1 | 853 | address InterpreterGenerator::generate_native_entry(bool synchronized) { |
aoqi@1 | 854 | // determine code generation flags |
aoqi@1 | 855 | bool inc_counter = UseCompiler || CountCompiledCalls; |
aoqi@1 | 856 | // Rsender: sender's sp |
aoqi@1 | 857 | // Rmethod: Method* |
aoqi@1 | 858 | address entry_point = __ pc(); |
aoqi@1 | 859 | |
aoqi@1 | 860 | #ifndef CORE |
aoqi@1 | 861 | const Address invocation_counter(Rmethod,in_bytes(MethodCounters::invocation_counter_offset() + // Fu: 20130814 |
aoqi@6880 | 862 | InvocationCounter::counter_offset())); |
aoqi@1 | 863 | #endif |
aoqi@1 | 864 | |
aoqi@1 | 865 | // get parameter size (always needed) |
aoqi@1 | 866 | // the size in the java stack |
aoqi@6880 | 867 | __ ld(V0, Rmethod, in_bytes(Method::const_offset())); |
aoqi@1 | 868 | __ lhu(V0, V0, in_bytes(ConstMethod::size_of_parameters_offset())); // Fu: 20130814 |
aoqi@1 | 869 | |
aoqi@1 | 870 | // native calls don't need the stack size check since they have no expression stack |
aoqi@1 | 871 | // and the arguments are already on the stack and we only add a handful of words |
aoqi@6880 | 872 | // to the stack |
aoqi@1 | 873 | |
aoqi@1 | 874 | // Rmethod: Method* |
aoqi@1 | 875 | // V0: size of parameters |
aoqi@1 | 876 | // Layout of frame at this point |
aoqi@1 | 877 | // |
aoqi@1 | 878 | // [ argument word n-1 ] <--- sp |
aoqi@1 | 879 | // ... |
aoqi@1 | 880 | // [ argument word 0 ] |
aoqi@1 | 881 | |
aoqi@1 | 882 | // for natives the size of locals is zero |
aoqi@1 | 883 | |
aoqi@1 | 884 | // compute beginning of parameters (S7) |
aoqi@1 | 885 | __ dsll(LVP, V0, Address::times_8); |
aoqi@1 | 886 | __ daddiu(LVP, LVP, (-1) * wordSize); |
aoqi@1 | 887 | __ dadd(LVP, LVP, SP); |
aoqi@1 | 888 | |
aoqi@1 | 889 | |
aoqi@1 | 890 | // add 2 zero-initialized slots for native calls |
aoqi@1 | 891 | __ daddi(SP, SP, (-2) * wordSize); |
aoqi@6880 | 892 | __ sd(R0, SP, 1 * wordSize); // slot for native oop temp offset (setup via runtime) |
aoqi@6880 | 893 | __ sd(R0, SP, 0 * wordSize); // slot for static native result handler3 (setup via runtime) |
aoqi@1 | 894 | |
aoqi@1 | 895 | // Layout of frame at this point |
aoqi@6880 | 896 | // [ method holder mirror ] <--- sp |
aoqi@6880 | 897 | // [ result type info ] |
aoqi@6880 | 898 | // [ argument word n-1 ] <--- T0 |
aoqi@1 | 899 | // ... |
aoqi@6880 | 900 | // [ argument word 0 ] <--- LVP |
aoqi@1 | 901 | |
aoqi@1 | 902 | |
aoqi@1 | 903 | #ifndef CORE |
aoqi@1 | 904 | if (inc_counter) __ lw(T3, invocation_counter); // (pre-)fetch invocation count |
aoqi@1 | 905 | #endif |
aoqi@1 | 906 | |
aoqi@1 | 907 | // initialize fixed part of activation frame |
aoqi@1 | 908 | generate_fixed_frame(true); |
aoqi@1 | 909 | // after this function, the layout of frame is as following |
aoqi@1 | 910 | // |
aoqi@1 | 911 | // [ monitor block top ] <--- sp ( the top monitor entry ) |
aoqi@1 | 912 | // [ byte code pointer (0) ] (if native, bcp = 0) |
aoqi@1 | 913 | // [ constant pool cache ] |
aoqi@1 | 914 | // [ Method* ] |
aoqi@1 | 915 | // [ locals offset ] |
aoqi@1 | 916 | // [ sender's sp ] |
aoqi@1 | 917 | // [ sender's fp ] |
aoqi@1 | 918 | // [ return address ] <--- fp |
aoqi@1 | 919 | // [ method holder mirror ] |
aoqi@1 | 920 | // [ result type info ] |
aoqi@6880 | 921 | // [ argumnet word n-1 ] <--- sender's sp |
aoqi@6880 | 922 | // ... |
aoqi@1 | 923 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 924 | |
aoqi@1 | 925 | |
aoqi@1 | 926 | // make sure method is native & not abstract |
aoqi@1 | 927 | #ifdef ASSERT |
aoqi@1 | 928 | __ lw(T0, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 929 | { |
aoqi@1 | 930 | Label L; |
aoqi@1 | 931 | __ andi(AT, T0, JVM_ACC_NATIVE); |
aoqi@1 | 932 | __ bne(AT, R0, L); |
aoqi@1 | 933 | __ delayed()->nop(); |
aoqi@1 | 934 | __ stop("tried to execute native method as non-native"); |
aoqi@1 | 935 | __ bind(L); |
aoqi@1 | 936 | } |
aoqi@6880 | 937 | { |
aoqi@6880 | 938 | Label L; |
aoqi@1 | 939 | __ andi(AT, T0, JVM_ACC_ABSTRACT); |
aoqi@1 | 940 | __ beq(AT, R0, L); |
aoqi@1 | 941 | __ delayed()->nop(); |
aoqi@1 | 942 | __ stop("tried to execute abstract method in interpreter"); |
aoqi@1 | 943 | __ bind(L); |
aoqi@1 | 944 | } |
aoqi@1 | 945 | #endif |
aoqi@1 | 946 | |
aoqi@1 | 947 | // Since at this point in the method invocation the exception handler |
aoqi@1 | 948 | // would try to exit the monitor of synchronized methods which hasn't |
aoqi@1 | 949 | // been entered yet, we set the thread local variable |
aoqi@1 | 950 | // _do_not_unlock_if_synchronized to true. The remove_activation will |
aoqi@1 | 951 | // check this flag. |
aoqi@1 | 952 | Register thread = TREG; |
aoqi@1 | 953 | #ifndef OPT_THREAD |
aoqi@1 | 954 | __ get_thread(thread); |
aoqi@1 | 955 | #endif |
aoqi@1 | 956 | __ move(AT, (int)true); |
aoqi@1 | 957 | __ sb(AT, thread, in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); |
aoqi@1 | 958 | |
aoqi@1 | 959 | #ifndef CORE |
aoqi@1 | 960 | // increment invocation count & check for overflow |
aoqi@1 | 961 | Label invocation_counter_overflow; |
aoqi@1 | 962 | if (inc_counter) { |
aoqi@1 | 963 | generate_counter_incr(&invocation_counter_overflow, NULL, NULL); |
aoqi@1 | 964 | } |
aoqi@6880 | 965 | |
aoqi@1 | 966 | Label continue_after_compile; |
aoqi@1 | 967 | __ bind(continue_after_compile); |
aoqi@1 | 968 | #endif // CORE |
aoqi@1 | 969 | |
aoqi@1 | 970 | bang_stack_shadow_pages(true); |
aoqi@1 | 971 | |
aoqi@1 | 972 | // reset the _do_not_unlock_if_synchronized flag |
aoqi@1 | 973 | #ifndef OPT_THREAD |
aoqi@1 | 974 | __ get_thread(thread); |
aoqi@1 | 975 | #endif |
aoqi@1 | 976 | __ sb(R0, thread, in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); |
aoqi@1 | 977 | |
aoqi@1 | 978 | // check for synchronized methods |
aoqi@1 | 979 | // Must happen AFTER invocation_counter check and stack overflow check, |
aoqi@1 | 980 | // so method is not locked if overflows. |
aoqi@1 | 981 | if (synchronized) { |
aoqi@1 | 982 | lock_method(); |
aoqi@1 | 983 | } else { |
aoqi@1 | 984 | // no synchronization necessary |
aoqi@1 | 985 | #ifdef ASSERT |
aoqi@1 | 986 | { |
aoqi@1 | 987 | Label L; |
aoqi@1 | 988 | __ lw(T0, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 989 | __ andi(AT, T0, JVM_ACC_SYNCHRONIZED); |
aoqi@1 | 990 | __ beq(AT, R0, L); |
aoqi@1 | 991 | __ delayed()->nop(); |
aoqi@1 | 992 | __ stop("method needs synchronization"); |
aoqi@1 | 993 | __ bind(L); |
aoqi@1 | 994 | } |
aoqi@1 | 995 | #endif |
aoqi@1 | 996 | } |
aoqi@1 | 997 | |
aoqi@1 | 998 | // after method_lock, the layout of frame is as following |
aoqi@1 | 999 | // |
aoqi@1 | 1000 | // [ monitor entry ] <--- sp |
aoqi@1 | 1001 | // ... |
aoqi@1 | 1002 | // [ monitor entry ] |
aoqi@6880 | 1003 | // [ monitor block top ] ( the top monitor entry ) |
aoqi@1 | 1004 | // [ byte code pointer (0) ] (if native, bcp = 0) |
aoqi@1 | 1005 | // [ constant pool cache ] |
aoqi@1 | 1006 | // [ Method* ] |
aoqi@6880 | 1007 | // [ locals offset ] |
aoqi@1 | 1008 | // [ sender's sp ] |
aoqi@1 | 1009 | // [ sender's fp ] |
aoqi@1 | 1010 | // [ return address ] <--- fp |
aoqi@1 | 1011 | // [ method holder mirror ] |
aoqi@1 | 1012 | // [ result type info ] |
aoqi@1 | 1013 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@6880 | 1014 | // ... |
aoqi@1 | 1015 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 1016 | |
aoqi@1 | 1017 | // start execution |
aoqi@1 | 1018 | #ifdef ASSERT |
aoqi@6880 | 1019 | { |
aoqi@6880 | 1020 | Label L; |
aoqi@1 | 1021 | __ ld(AT, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
aoqi@1 | 1022 | __ beq(AT, SP, L); |
aoqi@1 | 1023 | __ delayed()->nop(); |
aoqi@1 | 1024 | __ stop("broken stack frame setup in interpreter in asm"); |
aoqi@1 | 1025 | __ bind(L); |
aoqi@1 | 1026 | } |
aoqi@1 | 1027 | #endif |
aoqi@1 | 1028 | |
aoqi@1 | 1029 | // jvmti/jvmpi support |
aoqi@1 | 1030 | __ notify_method_entry(); |
aoqi@1 | 1031 | |
aoqi@1 | 1032 | // work registers |
aoqi@1 | 1033 | const Register method = Rmethod; |
aoqi@1 | 1034 | //const Register thread = T2; |
aoqi@6880 | 1035 | const Register t = RT4; |
aoqi@1 | 1036 | |
aoqi@1 | 1037 | __ get_method(method); |
aoqi@1 | 1038 | __ verify_oop(method); |
aoqi@6880 | 1039 | { |
aoqi@6880 | 1040 | Label L, Lstatic; |
aoqi@6880 | 1041 | __ ld(t,method,in_bytes(Method::const_offset())); |
aoqi@9228 | 1042 | __ lhu(t, t, in_bytes(ConstMethod::size_of_parameters_offset())); |
aoqi@1 | 1043 | // MIPS n64 ABI: caller does not reserve space for the register auguments. |
aoqi@1 | 1044 | // A0 and A1(if needed) |
aoqi@1 | 1045 | __ lw(AT, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 1046 | __ andi(AT, AT, JVM_ACC_STATIC); |
aoqi@1 | 1047 | __ beq(AT, R0, Lstatic); |
aoqi@1 | 1048 | __ delayed()->nop(); |
aoqi@1 | 1049 | __ daddiu(t, t, 1); |
aoqi@1 | 1050 | __ bind(Lstatic); |
aoqi@1 | 1051 | __ daddiu(t, t, -7); |
aoqi@1 | 1052 | __ blez(t, L); |
aoqi@1 | 1053 | __ delayed()->nop(); |
aoqi@1 | 1054 | __ dsll(t, t, Address::times_8); |
aoqi@1 | 1055 | __ dsub(SP, SP, t); |
aoqi@1 | 1056 | __ bind(L); |
aoqi@1 | 1057 | } |
aoqi@1 | 1058 | __ move(AT, -(StackAlignmentInBytes)); |
aoqi@6880 | 1059 | __ andr(SP, SP, AT); |
aoqi@1 | 1060 | __ move(AT, SP); |
aoqi@6880 | 1061 | // [ ] <--- sp |
aoqi@1 | 1062 | // ... (size of parameters - 8 ) |
aoqi@6880 | 1063 | // [ monitor entry ] |
aoqi@1 | 1064 | // ... |
aoqi@1 | 1065 | // [ monitor entry ] |
aoqi@6880 | 1066 | // [ monitor block top ] ( the top monitor entry ) |
aoqi@1 | 1067 | // [ byte code pointer (0) ] (if native, bcp = 0) |
aoqi@1 | 1068 | // [ constant pool cache ] |
aoqi@1 | 1069 | // [ Method* ] |
aoqi@1 | 1070 | // [ locals offset ] |
aoqi@1 | 1071 | // [ sender's sp ] |
aoqi@1 | 1072 | // [ sender's fp ] |
aoqi@1 | 1073 | // [ return address ] <--- fp |
aoqi@1 | 1074 | // [ method holder mirror ] |
aoqi@1 | 1075 | // [ result type info ] |
aoqi@1 | 1076 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@6880 | 1077 | // ... |
aoqi@1 | 1078 | // [ argument word 0 ] <--- LVP |
aoqi@1 | 1079 | |
aoqi@1 | 1080 | // get signature handler |
aoqi@6880 | 1081 | { |
aoqi@1 | 1082 | Label L; |
aoqi@1 | 1083 | __ ld(T9, method, in_bytes(Method::signature_handler_offset())); |
aoqi@1 | 1084 | __ bne(T9, R0, L); |
aoqi@1 | 1085 | __ delayed()->nop(); |
aoqi@6880 | 1086 | __ call_VM(NOREG, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 1087 | InterpreterRuntime::prepare_native_call), method); |
aoqi@1 | 1088 | __ get_method(method); |
aoqi@1 | 1089 | __ ld(T9, method, in_bytes(Method::signature_handler_offset())); |
aoqi@1 | 1090 | __ bind(L); |
aoqi@1 | 1091 | } |
aoqi@1 | 1092 | |
aoqi@1 | 1093 | // call signature handler |
aoqi@1 | 1094 | // FIXME: when change codes in InterpreterRuntime, note this point |
aoqi@1 | 1095 | // from: begin of parameters |
aoqi@1 | 1096 | assert(InterpreterRuntime::SignatureHandlerGenerator::from() == LVP, "adjust this code"); |
aoqi@1 | 1097 | // to: current sp |
aoqi@1 | 1098 | assert(InterpreterRuntime::SignatureHandlerGenerator::to () == SP, "adjust this code"); |
aoqi@1 | 1099 | // temp: T3 |
aoqi@1 | 1100 | assert(InterpreterRuntime::SignatureHandlerGenerator::temp() == t , "adjust this code"); |
aoqi@1 | 1101 | |
aoqi@1 | 1102 | __ jalr(T9); |
aoqi@1 | 1103 | __ delayed()->nop(); |
aoqi@6880 | 1104 | __ get_method(method); // slow path call blows EBX on DevStudio 5.0 |
aoqi@1 | 1105 | |
aoqi@6880 | 1106 | /* |
aoqi@1 | 1107 | if native function is static, and its second parameter has type length of double word, |
aoqi@1 | 1108 | and first parameter has type length of word, we have to reserve one word |
aoqi@1 | 1109 | for the first parameter, according to mips o32 abi. |
aoqi@1 | 1110 | if native function is not static, and its third parameter has type length of double word, |
aoqi@1 | 1111 | and second parameter has type length of word, we have to reserve one word for the second |
aoqi@1 | 1112 | parameter. |
aoqi@1 | 1113 | */ |
aoqi@1 | 1114 | |
aoqi@1 | 1115 | |
aoqi@1 | 1116 | // result handler is in V0 |
aoqi@1 | 1117 | // set result handler |
aoqi@1 | 1118 | __ sd(V0, FP, (frame::interpreter_frame_result_handler_offset)*wordSize); |
aoqi@1 | 1119 | |
aoqi@1 | 1120 | #define FIRSTPARA_SHIFT_COUNT 5 |
aoqi@1 | 1121 | #define SECONDPARA_SHIFT_COUNT 9 |
aoqi@1 | 1122 | #define THIRDPARA_SHIFT_COUNT 13 |
aoqi@6880 | 1123 | #define PARA_MASK 0xf |
aoqi@1 | 1124 | |
aoqi@1 | 1125 | // pass mirror handle if static call |
aoqi@6880 | 1126 | { |
aoqi@1 | 1127 | Label L; |
aoqi@1 | 1128 | const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
aoqi@1 | 1129 | __ lw(t, method, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 1130 | __ andi(AT, t, JVM_ACC_STATIC); |
aoqi@1 | 1131 | __ beq(AT, R0, L); |
aoqi@1 | 1132 | __ delayed()->nop(); |
aoqi@1 | 1133 | |
aoqi@1 | 1134 | // get mirror |
aoqi@1 | 1135 | __ ld(t, method, in_bytes(Method:: const_offset())); |
aoqi@1 | 1136 | __ ld(t, t, in_bytes(ConstMethod::constants_offset())); //?? |
aoqi@1 | 1137 | __ ld(t, t, ConstantPool::pool_holder_offset_in_bytes()); |
aoqi@1 | 1138 | __ ld(t, t, mirror_offset); |
aoqi@1 | 1139 | // copy mirror into activation frame |
aoqi@1 | 1140 | //__ sw(t, FP, frame::interpreter_frame_oop_temp_offset * wordSize); |
aoqi@1 | 1141 | // pass handle to mirror |
aoqi@1 | 1142 | __ sd(t, FP, frame::interpreter_frame_oop_temp_offset * wordSize); |
aoqi@1 | 1143 | __ daddi(t, FP, frame::interpreter_frame_oop_temp_offset * wordSize); |
aoqi@1 | 1144 | __ move(A1, t); |
aoqi@1 | 1145 | __ bind(L); |
aoqi@1 | 1146 | } |
aoqi@1 | 1147 | |
aoqi@1 | 1148 | // [ mthd holder mirror ptr ] <--- sp --------------------| (only for static method) |
aoqi@1 | 1149 | // [ ] | |
aoqi@1 | 1150 | // ... size of parameters(or +1) | |
aoqi@1 | 1151 | // [ monitor entry ] | |
aoqi@1 | 1152 | // ... | |
aoqi@1 | 1153 | // [ monitor entry ] | |
aoqi@1 | 1154 | // [ monitor block top ] ( the top monitor entry ) | |
aoqi@1 | 1155 | // [ byte code pointer (0) ] (if native, bcp = 0) | |
aoqi@1 | 1156 | // [ constant pool cache ] | |
aoqi@1 | 1157 | // [ Method* ] | |
aoqi@1 | 1158 | // [ locals offset ] | |
aoqi@1 | 1159 | // [ sender's sp ] | |
aoqi@1 | 1160 | // [ sender's fp ] | |
aoqi@1 | 1161 | // [ return address ] <--- fp | |
aoqi@6880 | 1162 | // [ method holder mirror ] <----------------------------| |
aoqi@1 | 1163 | // [ result type info ] |
aoqi@1 | 1164 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@6880 | 1165 | // ... |
aoqi@1 | 1166 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 1167 | |
aoqi@1 | 1168 | // get native function entry point |
aoqi@1 | 1169 | { Label L; |
aoqi@1 | 1170 | __ ld(T9, method, in_bytes(Method::native_function_offset())); |
aoqi@1 | 1171 | __ li(V1, SharedRuntime::native_method_throw_unsatisfied_link_error_entry()); |
aoqi@1 | 1172 | __ bne(V1, T9, L); |
aoqi@1 | 1173 | __ delayed()->nop(); |
aoqi@1 | 1174 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::prepare_native_call), method); |
aoqi@1 | 1175 | __ get_method(method); |
aoqi@1 | 1176 | __ verify_oop(method); |
aoqi@1 | 1177 | __ ld(T9, method, in_bytes(Method::native_function_offset())); |
aoqi@1 | 1178 | __ bind(L); |
aoqi@1 | 1179 | } |
aoqi@1 | 1180 | /* |
aoqi@1 | 1181 | __ pushad(); |
aoqi@1 | 1182 | __ move(A0, T9); |
aoqi@1 | 1183 | __ call(CAST_FROM_FN_PTR(address, SharedRuntime::func_debug),relocInfo::runtime_call_type); |
aoqi@1 | 1184 | __ popad(); |
aoqi@1 | 1185 | */ |
aoqi@1 | 1186 | |
aoqi@1 | 1187 | // pass JNIEnv |
aoqi@1 | 1188 | // native function in T9 |
aoqi@1 | 1189 | #ifndef OPT_THREAD |
aoqi@1 | 1190 | __ get_thread(thread); |
aoqi@1 | 1191 | #endif |
aoqi@1 | 1192 | __ daddi(t, thread, in_bytes(JavaThread::jni_environment_offset())); |
aoqi@1 | 1193 | __ move(A0, t); |
aoqi@1 | 1194 | // [ jni environment ] <--- sp |
aoqi@1 | 1195 | // [ mthd holder mirror ptr ] ---------------------------->| (only for static method) |
aoqi@1 | 1196 | // [ ] | |
aoqi@1 | 1197 | // ... size of parameters | |
aoqi@1 | 1198 | // [ monitor entry ] | |
aoqi@1 | 1199 | // ... | |
aoqi@1 | 1200 | // [ monitor entry ] | |
aoqi@1 | 1201 | // [ monitor block top ] ( the top monitor entry ) | |
aoqi@1 | 1202 | // [ byte code pointer (0) ] (if native, bcp = 0) | |
aoqi@1 | 1203 | // [ constant pool cache ] | |
aoqi@1 | 1204 | // [ Method* ] | |
aoqi@1 | 1205 | // [ locals offset ] | |
aoqi@1 | 1206 | // [ sender's sp ] | |
aoqi@1 | 1207 | // [ sender's fp ] | |
aoqi@1 | 1208 | // [ return address ] <--- fp | |
aoqi@6880 | 1209 | // [ method holder mirror ] <----------------------------| |
aoqi@1 | 1210 | // [ result type info ] |
aoqi@1 | 1211 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@6880 | 1212 | // ... |
aoqi@1 | 1213 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 1214 | |
aoqi@1 | 1215 | // set_last_Java_frame_before_call |
aoqi@1 | 1216 | __ sd(FP, thread, in_bytes(JavaThread::last_Java_fp_offset())); |
aoqi@1 | 1217 | // Change state to native (we save the return address in the thread, since it might not |
aoqi@1 | 1218 | // be pushed on the stack when we do a a stack traversal). It is enough that the pc() |
aoqi@1 | 1219 | // points into the right code segment. It does not have to be the correct return pc. |
aoqi@1 | 1220 | __ li(t, __ pc()); |
aoqi@6880 | 1221 | __ sd(t, thread, in_bytes(JavaThread::last_Java_pc_offset())); |
aoqi@1 | 1222 | __ sd(SP, thread, in_bytes(JavaThread::last_Java_sp_offset())); |
aoqi@1 | 1223 | |
aoqi@1 | 1224 | // change thread state |
aoqi@1 | 1225 | #ifdef ASSERT |
aoqi@6880 | 1226 | { |
aoqi@6880 | 1227 | Label L; |
aoqi@1 | 1228 | __ lw(t, thread, in_bytes(JavaThread::thread_state_offset())); |
aoqi@1 | 1229 | __ daddi(t, t, (-1) * _thread_in_Java); |
aoqi@1 | 1230 | __ beq(t, R0, L); |
aoqi@1 | 1231 | __ delayed()->nop(); |
aoqi@1 | 1232 | __ stop("Wrong thread state in native stub"); |
aoqi@1 | 1233 | __ bind(L); |
aoqi@1 | 1234 | } |
aoqi@1 | 1235 | #endif |
aoqi@1 | 1236 | |
aoqi@1 | 1237 | __ move(t, _thread_in_native); |
aoqi@1 | 1238 | __ sw(t, thread, in_bytes(JavaThread::thread_state_offset())); |
aoqi@1 | 1239 | |
aoqi@1 | 1240 | // call native method |
aoqi@1 | 1241 | __ jalr(T9); |
aoqi@1 | 1242 | __ delayed()->nop(); |
aoqi@1 | 1243 | // result potentially in V2:V1 or F0:F1 |
aoqi@1 | 1244 | |
aoqi@1 | 1245 | |
aoqi@1 | 1246 | // via _last_native_pc and not via _last_jave_sp |
aoqi@1 | 1247 | // NOTE: the order of theses push(es) is known to frame::interpreter_frame_result. |
aoqi@1 | 1248 | // If the order changes or anything else is added to the stack the code in |
aoqi@1 | 1249 | // interpreter_frame_result will have to be changed. |
aoqi@1 | 1250 | //FIXME, should modify here |
aoqi@1 | 1251 | // save return value to keep the value from being destroyed by other calls |
aoqi@1 | 1252 | __ move(S1, V0); |
aoqi@1 | 1253 | __ move(S3, V1); |
aoqi@1 | 1254 | __ dmfc1(S4, F0); |
aoqi@1 | 1255 | __ dmfc1(S2, F1); |
aoqi@1 | 1256 | |
aoqi@1 | 1257 | // change thread state |
aoqi@6880 | 1258 | __ get_thread(thread); |
aoqi@1 | 1259 | __ move(t, _thread_in_native_trans); |
aoqi@1 | 1260 | __ sw(t, thread, in_bytes(JavaThread::thread_state_offset())); |
aoqi@1 | 1261 | |
aoqi@1 | 1262 | if( os::is_MP() ) __ sync(); // Force this write out before the read below |
aoqi@1 | 1263 | |
aoqi@1 | 1264 | // check for safepoint operation in progress and/or pending suspend requests |
aoqi@1 | 1265 | { Label Continue; |
aoqi@1 | 1266 | |
aoqi@1 | 1267 | // Don't use call_VM as it will see a possible pending exception and forward it |
aoqi@1 | 1268 | // and never return here preventing us from clearing _last_native_pc down below. |
aoqi@1 | 1269 | // Also can't use call_VM_leaf either as it will check to see if esi & edi are |
aoqi@1 | 1270 | // preserved and correspond to the bcp/locals pointers. So we do a runtime call |
aoqi@1 | 1271 | // by hand. |
aoqi@1 | 1272 | // |
aoqi@1 | 1273 | Label L; |
aoqi@1 | 1274 | __ li(AT, SafepointSynchronize::address_of_state()); |
aoqi@1 | 1275 | __ lw(AT, AT, 0); |
aoqi@1 | 1276 | __ bne(AT, R0, L); |
aoqi@1 | 1277 | __ delayed()->nop(); |
aoqi@1 | 1278 | __ lw(AT, thread, in_bytes(JavaThread::suspend_flags_offset())); |
aoqi@1 | 1279 | __ beq(AT, R0, Continue); |
aoqi@1 | 1280 | __ delayed()->nop(); |
aoqi@1 | 1281 | __ bind(L); |
aoqi@1 | 1282 | __ move(A0, thread); |
aoqi@6880 | 1283 | __ call(CAST_FROM_FN_PTR(address, |
aoqi@6880 | 1284 | JavaThread::check_special_condition_for_native_trans), |
aoqi@6880 | 1285 | relocInfo::runtime_call_type); |
aoqi@1 | 1286 | __ delayed()->nop(); |
aoqi@1 | 1287 | |
aoqi@1 | 1288 | #ifndef OPT_THREAD |
aoqi@1 | 1289 | __ get_thread(thread); |
aoqi@1 | 1290 | #endif |
aoqi@1 | 1291 | //add for compressedoops |
aoqi@1 | 1292 | __ reinit_heapbase(); |
aoqi@1 | 1293 | __ bind(Continue); |
aoqi@1 | 1294 | } |
aoqi@1 | 1295 | |
aoqi@1 | 1296 | // change thread state |
aoqi@1 | 1297 | __ move(t, _thread_in_Java); |
aoqi@1 | 1298 | __ sw(t, thread, in_bytes(JavaThread::thread_state_offset())); |
fujie@9171 | 1299 | __ reset_last_Java_frame(thread, true); |
aoqi@1 | 1300 | |
aoqi@1 | 1301 | // reset handle block |
aoqi@6880 | 1302 | __ ld(t, thread, in_bytes(JavaThread::active_handles_offset())); |
aoqi@1 | 1303 | __ sw(R0, t, JNIHandleBlock::top_offset_in_bytes()); |
aoqi@1 | 1304 | |
aoqi@1 | 1305 | // If result was an oop then unbox and save it in the frame |
aoqi@1 | 1306 | { Label L; |
aoqi@1 | 1307 | Label no_oop, store_result; |
aoqi@6880 | 1308 | //FIXME, addi only support 16-bit imeditate |
aoqi@6880 | 1309 | __ ld(AT, FP, frame::interpreter_frame_result_handler_offset*wordSize); |
aoqi@6880 | 1310 | __ li(T0, AbstractInterpreter::result_handler(T_OBJECT)); |
aoqi@6880 | 1311 | __ bne(AT, T0, no_oop); |
aoqi@6880 | 1312 | __ delayed()->nop(); |
aoqi@6880 | 1313 | __ move(V0, S1); |
aoqi@6880 | 1314 | __ beq(V0, R0, store_result); |
aoqi@6880 | 1315 | __ delayed()->nop(); |
aoqi@1 | 1316 | // unbox |
aoqi@6880 | 1317 | __ ld(V0, V0, 0); |
aoqi@1 | 1318 | __ bind(store_result); |
aoqi@6880 | 1319 | __ sd(V0, FP, (frame::interpreter_frame_oop_temp_offset)*wordSize); |
aoqi@1 | 1320 | // keep stack depth as expected by pushing oop which will eventually be discarded |
aoqi@1 | 1321 | __ bind(no_oop); |
aoqi@1 | 1322 | } |
aoqi@1 | 1323 | { |
aoqi@1 | 1324 | Label no_reguard; |
aoqi@1 | 1325 | __ lw(t, thread, in_bytes(JavaThread::stack_guard_state_offset())); |
aoqi@6880 | 1326 | __ move(AT,(int) JavaThread::stack_guard_yellow_disabled); |
aoqi@1 | 1327 | __ bne(t, AT, no_reguard); |
aoqi@1 | 1328 | __ delayed()->nop(); |
aoqi@6880 | 1329 | __ pushad(); |
fujie@9160 | 1330 | __ move(S5_heapbase, SP); |
fujie@9160 | 1331 | __ move(AT, -StackAlignmentInBytes); |
fujie@9160 | 1332 | __ andr(SP, SP, AT); |
aoqi@6880 | 1333 | __ call(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages), relocInfo::runtime_call_type); |
aoqi@1 | 1334 | __ delayed()->nop(); |
fujie@9160 | 1335 | __ move(SP, S5_heapbase); |
aoqi@6880 | 1336 | __ popad(); |
aoqi@1 | 1337 | //add for compressedoops |
aoqi@1 | 1338 | __ reinit_heapbase(); |
aoqi@1 | 1339 | __ bind(no_reguard); |
aoqi@1 | 1340 | } |
aoqi@6880 | 1341 | // restore esi to have legal interpreter frame, |
aoqi@1 | 1342 | // i.e., bci == 0 <=> esi == code_base() |
aoqi@1 | 1343 | // Can't call_VM until bcp is within reasonable. |
aoqi@1 | 1344 | __ get_method(method); // method is junk from thread_in_native to now. |
aoqi@1 | 1345 | __ verify_oop(method); |
aoqi@6880 | 1346 | __ ld(BCP, method, in_bytes(Method::const_offset())); |
aoqi@1 | 1347 | __ lea(BCP, Address(BCP, in_bytes(ConstMethod::codes_offset()))); |
aoqi@1 | 1348 | // handle exceptions (exception handling will handle unlocking!) |
aoqi@6880 | 1349 | { |
aoqi@1 | 1350 | Label L; |
aoqi@1 | 1351 | __ lw(t, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@1 | 1352 | __ beq(t, R0, L); |
aoqi@1 | 1353 | __ delayed()->nop(); |
aoqi@6880 | 1354 | // Note: At some point we may want to unify this with the code used in |
aoqi@1 | 1355 | // call_VM_base(); |
aoqi@1 | 1356 | // i.e., we should use the StubRoutines::forward_exception code. For now this |
aoqi@1 | 1357 | // doesn't work here because the esp is not correctly set at this point. |
aoqi@6880 | 1358 | __ MacroAssembler::call_VM(noreg, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 1359 | InterpreterRuntime::throw_pending_exception)); |
aoqi@1 | 1360 | __ should_not_reach_here(); |
aoqi@1 | 1361 | __ bind(L); |
aoqi@1 | 1362 | } |
aoqi@1 | 1363 | |
aoqi@1 | 1364 | // do unlocking if necessary |
aoqi@6880 | 1365 | { |
aoqi@6880 | 1366 | Label L; |
aoqi@1 | 1367 | __ lw(t, method, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 1368 | __ andi(t, t, JVM_ACC_SYNCHRONIZED); |
aoqi@1 | 1369 | __ beq(t, R0, L); |
aoqi@1 | 1370 | // the code below should be shared with interpreter macro assembler implementation |
aoqi@6880 | 1371 | { |
aoqi@6880 | 1372 | Label unlock; |
aoqi@1 | 1373 | // BasicObjectLock will be first in list, |
aoqi@1 | 1374 | // since this is a synchronized method. However, need |
aoqi@6880 | 1375 | // to check that the object has not been unlocked by |
aoqi@6880 | 1376 | // an explicit monitorexit bytecode. |
aoqi@6880 | 1377 | __ delayed()->daddi(c_rarg0, FP, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); |
aoqi@1 | 1378 | // address of first monitor |
aoqi@1 | 1379 | |
aoqi@1 | 1380 | __ ld(t, c_rarg0, BasicObjectLock::obj_offset_in_bytes()); |
aoqi@1 | 1381 | __ bne(t, R0, unlock); |
aoqi@1 | 1382 | __ delayed()->nop(); |
aoqi@1 | 1383 | |
aoqi@1 | 1384 | // Entry already unlocked, need to throw exception |
aoqi@6880 | 1385 | __ MacroAssembler::call_VM(NOREG, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 1386 | InterpreterRuntime::throw_illegal_monitor_state_exception)); |
aoqi@1 | 1387 | __ should_not_reach_here(); |
aoqi@1 | 1388 | |
aoqi@6880 | 1389 | __ bind(unlock); |
aoqi@6880 | 1390 | __ unlock_object(c_rarg0); |
aoqi@1 | 1391 | } |
aoqi@1 | 1392 | __ bind(L); |
aoqi@6880 | 1393 | } |
aoqi@1 | 1394 | |
aoqi@1 | 1395 | // jvmti/jvmpi support |
aoqi@1 | 1396 | // Note: This must happen _after_ handling/throwing any exceptions since |
aoqi@1 | 1397 | // the exception handler code notifies the runtime of method exits |
aoqi@1 | 1398 | // too. If this happens before, method entry/exit notifications are |
aoqi@1 | 1399 | // not properly paired (was bug - gri 11/22/99). |
aoqi@1 | 1400 | __ notify_method_exit(false, vtos, InterpreterMacroAssembler::NotifyJVMTI ); |
aoqi@1 | 1401 | |
aoqi@6880 | 1402 | // restore potential result in V0:V1, |
aoqi@1 | 1403 | // call result handler to restore potential result in ST0 & handle result |
aoqi@1 | 1404 | //__ lw(V0, SP, 3 * wordSize); |
aoqi@1 | 1405 | //__ lw(V1, SP, 2 * wordSize); |
aoqi@1 | 1406 | //__ lwc1(F0, SP, 1 * wordSize); |
aoqi@1 | 1407 | //__ lwc1(F1, SP, 0 * wordSize); |
aoqi@1 | 1408 | //__ addi(SP, SP, 4 * wordSize); |
aoqi@1 | 1409 | __ move(V0, S1); |
aoqi@1 | 1410 | __ move(V1, S3); |
aoqi@1 | 1411 | __ dmtc1(S4, F0); |
aoqi@1 | 1412 | __ dmtc1(S2, F1); |
aoqi@1 | 1413 | __ ld(t, FP, (frame::interpreter_frame_result_handler_offset) * wordSize); |
aoqi@1 | 1414 | __ jalr(t); |
aoqi@1 | 1415 | __ delayed()->nop(); |
aoqi@1 | 1416 | |
aoqi@1 | 1417 | |
aoqi@1 | 1418 | // remove activation |
aoqi@1 | 1419 | __ ld(SP, FP, frame::interpreter_frame_sender_sp_offset * wordSize); // get sender sp |
aoqi@1 | 1420 | __ ld(RA, FP, frame::interpreter_frame_return_addr_offset * wordSize); // get return address |
aoqi@1 | 1421 | __ ld(FP, FP, frame::interpreter_frame_sender_fp_offset * wordSize); // restore sender's fp |
aoqi@1 | 1422 | __ jr(RA); |
aoqi@1 | 1423 | __ delayed()->nop(); |
aoqi@1 | 1424 | |
aoqi@1 | 1425 | #ifndef CORE |
aoqi@1 | 1426 | if (inc_counter) { |
aoqi@1 | 1427 | // Handle overflow of counter and compile method |
aoqi@1 | 1428 | __ bind(invocation_counter_overflow); |
aoqi@1 | 1429 | generate_counter_overflow(&continue_after_compile); |
aoqi@1 | 1430 | // entry_point is the beginning of this |
aoqi@1 | 1431 | // function and checks again for compiled code |
aoqi@1 | 1432 | } |
aoqi@1 | 1433 | #endif |
aoqi@1 | 1434 | return entry_point; |
aoqi@1 | 1435 | } |
aoqi@1 | 1436 | |
aoqi@1 | 1437 | // |
aoqi@1 | 1438 | // Generic interpreted method entry to (asm) interpreter |
aoqi@1 | 1439 | // |
aoqi@1 | 1440 | // Layout of frame just at the entry |
aoqi@1 | 1441 | // |
aoqi@6880 | 1442 | // [ argument word n-1 ] <--- sp |
aoqi@1 | 1443 | // ... |
aoqi@6880 | 1444 | // [ argument word 0 ] |
aoqi@6880 | 1445 | // assume Method* in Rmethod before call this method. |
aoqi@1 | 1446 | // prerequisites to the generated stub : the callee Method* in Rmethod |
aoqi@1 | 1447 | // note you must save the caller bcp before call the generated stub |
aoqi@1 | 1448 | // |
aoqi@1 | 1449 | address InterpreterGenerator::generate_normal_entry(bool synchronized) { |
aoqi@1 | 1450 | // determine code generation flags |
aoqi@1 | 1451 | bool inc_counter = UseCompiler || CountCompiledCalls; |
aoqi@1 | 1452 | |
aoqi@1 | 1453 | // Rmethod: Method* |
aoqi@6880 | 1454 | // Rsender: sender 's sp |
aoqi@1 | 1455 | address entry_point = __ pc(); |
fujie@6895 | 1456 | |
aoqi@6880 | 1457 | const Address invocation_counter(Rmethod, |
aoqi@6880 | 1458 | in_bytes(MethodCounters::invocation_counter_offset() + InvocationCounter::counter_offset())); |
aoqi@1 | 1459 | |
aoqi@1 | 1460 | // get parameter size (always needed) |
aoqi@6880 | 1461 | __ ld(T3, Rmethod, in_bytes(Method::const_offset())); //T3 --> Rmethod._constMethod |
aoqi@1 | 1462 | __ lhu(V0, T3, in_bytes(ConstMethod::size_of_parameters_offset())); |
aoqi@1 | 1463 | |
aoqi@1 | 1464 | // Rmethod: Method* |
aoqi@1 | 1465 | // V0: size of parameters |
aoqi@6880 | 1466 | // Rsender: sender 's sp ,could be different frome sp+ wordSize if we call via c2i |
aoqi@1 | 1467 | // get size of locals in words to T2 |
aoqi@6880 | 1468 | __ lhu(T2, T3, in_bytes(ConstMethod::size_of_locals_offset())); |
aoqi@1 | 1469 | // T2 = no. of additional locals, locals include parameters |
aoqi@6880 | 1470 | __ dsub(T2, T2, V0); |
aoqi@1 | 1471 | |
aoqi@1 | 1472 | // see if we've got enough room on the stack for locals plus overhead. |
aoqi@1 | 1473 | // Layout of frame at this point |
aoqi@1 | 1474 | // |
aoqi@1 | 1475 | // [ argument word n-1 ] <--- sp |
aoqi@1 | 1476 | // ... |
aoqi@6880 | 1477 | // [ argument word 0 ] |
aoqi@1 | 1478 | generate_stack_overflow_check(); |
aoqi@1 | 1479 | // after this function, the layout of frame does not change |
aoqi@1 | 1480 | |
aoqi@1 | 1481 | // compute beginning of parameters (LVP) |
aoqi@1 | 1482 | __ dsll(LVP, V0, LogBytesPerWord); |
aoqi@1 | 1483 | __ daddiu(LVP, LVP, (-1) * wordSize); |
aoqi@1 | 1484 | __ dadd(LVP, LVP, SP); |
aoqi@1 | 1485 | |
aoqi@1 | 1486 | // T2 - # of additional locals |
aoqi@1 | 1487 | // allocate space for locals |
aoqi@1 | 1488 | // explicitly initialize locals |
aoqi@1 | 1489 | { |
aoqi@1 | 1490 | Label exit, loop; |
aoqi@1 | 1491 | __ beq(T2, R0, exit); |
aoqi@1 | 1492 | __ delayed()->nop(); |
fujie@6895 | 1493 | |
aoqi@1 | 1494 | __ bind(loop); |
aoqi@1 | 1495 | __ sd(R0, SP, -1 * wordSize); // initialize local variables |
aoqi@1 | 1496 | __ daddiu(T2, T2, -1); // until everything initialized |
aoqi@1 | 1497 | __ bne(T2, R0, loop); |
aoqi@1 | 1498 | __ delayed(); |
fujie@6895 | 1499 | |
aoqi@1 | 1500 | __ daddiu(SP, SP, (-1) * wordSize); //fill delay slot |
fujie@6895 | 1501 | |
aoqi@1 | 1502 | __ bind(exit); |
aoqi@1 | 1503 | } |
aoqi@1 | 1504 | |
aoqi@6880 | 1505 | // |
aoqi@6880 | 1506 | // [ local var m-1 ] <--- sp |
aoqi@1 | 1507 | // ... |
aoqi@6880 | 1508 | // [ local var 0 ] |
aoqi@6880 | 1509 | // [ argument word n-1 ] <--- T0? |
aoqi@1 | 1510 | // ... |
aoqi@6880 | 1511 | // [ argument word 0 ] <--- LVP |
aoqi@1 | 1512 | |
aoqi@1 | 1513 | // initialize fixed part of activation frame |
aoqi@1 | 1514 | |
aoqi@1 | 1515 | generate_fixed_frame(false); |
aoqi@1 | 1516 | |
aoqi@1 | 1517 | |
aoqi@1 | 1518 | // after this function, the layout of frame is as following |
aoqi@6880 | 1519 | // |
aoqi@1 | 1520 | // [ monitor block top ] <--- sp ( the top monitor entry ) |
aoqi@1 | 1521 | // [ byte code pointer ] (if native, bcp = 0) |
aoqi@1 | 1522 | // [ constant pool cache ] |
aoqi@1 | 1523 | // [ Method* ] |
aoqi@6880 | 1524 | // [ locals offset ] |
aoqi@1 | 1525 | // [ sender's sp ] |
aoqi@1 | 1526 | // [ sender's fp ] <--- fp |
aoqi@6880 | 1527 | // [ return address ] |
aoqi@1 | 1528 | // [ local var m-1 ] |
aoqi@1 | 1529 | // ... |
aoqi@1 | 1530 | // [ local var 0 ] |
aoqi@1 | 1531 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@1 | 1532 | // ... |
aoqi@1 | 1533 | // [ argument word 0 ] <--- LVP |
aoqi@1 | 1534 | |
aoqi@1 | 1535 | |
aoqi@1 | 1536 | // make sure method is not native & not abstract |
aoqi@1 | 1537 | #ifdef ASSERT |
aoqi@1 | 1538 | __ ld(AT, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 1539 | { |
aoqi@1 | 1540 | Label L; |
aoqi@1 | 1541 | __ andi(T2, AT, JVM_ACC_NATIVE); |
aoqi@1 | 1542 | __ beq(T2, R0, L); |
aoqi@1 | 1543 | __ delayed()->nop(); |
aoqi@1 | 1544 | __ stop("tried to execute native method as non-native"); |
aoqi@1 | 1545 | __ bind(L); |
aoqi@1 | 1546 | } |
aoqi@6880 | 1547 | { |
aoqi@6880 | 1548 | Label L; |
aoqi@1 | 1549 | __ andi(T2, AT, JVM_ACC_ABSTRACT); |
aoqi@1 | 1550 | __ beq(T2, R0, L); |
aoqi@1 | 1551 | __ delayed()->nop(); |
aoqi@1 | 1552 | __ stop("tried to execute abstract method in interpreter"); |
aoqi@1 | 1553 | __ bind(L); |
aoqi@1 | 1554 | } |
aoqi@1 | 1555 | #endif |
aoqi@1 | 1556 | |
aoqi@1 | 1557 | // Since at this point in the method invocation the exception handler |
aoqi@1 | 1558 | // would try to exit the monitor of synchronized methods which hasn't |
aoqi@1 | 1559 | // been entered yet, we set the thread local variable |
aoqi@1 | 1560 | // _do_not_unlock_if_synchronized to true. The remove_activation will |
aoqi@1 | 1561 | // check this flag. |
aoqi@1 | 1562 | |
aoqi@1 | 1563 | #ifndef OPT_THREAD |
aoqi@1 | 1564 | Register thread = T8; |
aoqi@1 | 1565 | __ get_thread(thread); |
aoqi@1 | 1566 | #else |
aoqi@1 | 1567 | Register thread = TREG; |
aoqi@1 | 1568 | #endif |
aoqi@1 | 1569 | __ move(AT, (int)true); |
aoqi@1 | 1570 | __ sb(AT, thread, in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); |
aoqi@1 | 1571 | |
aoqi@1 | 1572 | #ifndef CORE |
aoqi@1 | 1573 | |
aoqi@1 | 1574 | // 2014/11/24 Fu |
aoqi@1 | 1575 | // mdp : T8 |
aoqi@1 | 1576 | // tmp1: T9 |
aoqi@6880 | 1577 | // tmp2: T2 |
aoqi@1 | 1578 | __ profile_parameters_type(T8, T9, T2); |
aoqi@1 | 1579 | |
aoqi@1 | 1580 | // increment invocation count & check for overflow |
aoqi@1 | 1581 | Label invocation_counter_overflow; |
aoqi@1 | 1582 | Label profile_method; |
aoqi@1 | 1583 | Label profile_method_continue; |
aoqi@1 | 1584 | if (inc_counter) { |
aoqi@6880 | 1585 | generate_counter_incr(&invocation_counter_overflow, |
aoqi@6880 | 1586 | &profile_method, |
aoqi@6880 | 1587 | &profile_method_continue); |
aoqi@1 | 1588 | if (ProfileInterpreter) { |
aoqi@1 | 1589 | __ bind(profile_method_continue); |
aoqi@1 | 1590 | } |
aoqi@1 | 1591 | } |
aoqi@1 | 1592 | |
aoqi@1 | 1593 | Label continue_after_compile; |
aoqi@1 | 1594 | __ bind(continue_after_compile); |
aoqi@1 | 1595 | |
aoqi@1 | 1596 | #endif // CORE |
aoqi@1 | 1597 | |
aoqi@1 | 1598 | bang_stack_shadow_pages(false); |
aoqi@1 | 1599 | |
aoqi@1 | 1600 | // reset the _do_not_unlock_if_synchronized flag |
aoqi@1 | 1601 | #ifndef OPT_THREAD |
aoqi@1 | 1602 | __ get_thread(thread); |
aoqi@1 | 1603 | #endif |
aoqi@1 | 1604 | __ sb(R0, thread, in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); |
aoqi@1 | 1605 | |
aoqi@1 | 1606 | // check for synchronized methods |
aoqi@1 | 1607 | // Must happen AFTER invocation_counter check and stack overflow check, |
aoqi@1 | 1608 | // so method is not locked if overflows. |
aoqi@1 | 1609 | // |
aoqi@1 | 1610 | if (synchronized) { |
aoqi@1 | 1611 | // Allocate monitor and lock method |
aoqi@1 | 1612 | lock_method(); |
aoqi@1 | 1613 | } else { |
aoqi@1 | 1614 | // no synchronization necessary |
aoqi@1 | 1615 | #ifdef ASSERT |
aoqi@1 | 1616 | { Label L; |
aoqi@1 | 1617 | __ lw(AT, Rmethod, in_bytes(Method::access_flags_offset())); |
aoqi@1 | 1618 | __ andi(T2, AT, JVM_ACC_SYNCHRONIZED); |
aoqi@1 | 1619 | __ beq(T2, R0, L); |
aoqi@1 | 1620 | __ delayed()->nop(); |
aoqi@1 | 1621 | __ stop("method needs synchronization"); |
aoqi@1 | 1622 | __ bind(L); |
aoqi@1 | 1623 | } |
aoqi@1 | 1624 | #endif |
aoqi@1 | 1625 | } |
aoqi@1 | 1626 | |
aoqi@1 | 1627 | // layout of frame after lock_method |
aoqi@6880 | 1628 | // [ monitor entry ] <--- sp |
aoqi@1 | 1629 | // ... |
aoqi@6880 | 1630 | // [ monitor entry ] |
aoqi@1 | 1631 | // [ monitor block top ] ( the top monitor entry ) |
aoqi@1 | 1632 | // [ byte code pointer ] (if native, bcp = 0) |
aoqi@1 | 1633 | // [ constant pool cache ] |
aoqi@1 | 1634 | // [ Method* ] |
aoqi@6880 | 1635 | // [ locals offset ] |
aoqi@1 | 1636 | // [ sender's sp ] |
aoqi@1 | 1637 | // [ sender's fp ] |
aoqi@1 | 1638 | // [ return address ] <--- fp |
aoqi@1 | 1639 | // [ local var m-1 ] |
aoqi@1 | 1640 | // ... |
aoqi@1 | 1641 | // [ local var 0 ] |
aoqi@1 | 1642 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@1 | 1643 | // ... |
aoqi@1 | 1644 | // [ argument word 0 ] <--- LVP |
aoqi@1 | 1645 | |
aoqi@1 | 1646 | |
aoqi@1 | 1647 | // start execution |
aoqi@1 | 1648 | #ifdef ASSERT |
aoqi@6880 | 1649 | { |
aoqi@6880 | 1650 | Label L; |
aoqi@1 | 1651 | __ ld(AT, FP, frame::interpreter_frame_monitor_block_top_offset * wordSize); |
aoqi@1 | 1652 | __ beq(AT, SP, L); |
aoqi@1 | 1653 | __ delayed()->nop(); |
aoqi@1 | 1654 | __ stop("broken stack frame setup in interpreter in native"); |
aoqi@1 | 1655 | __ bind(L); |
aoqi@1 | 1656 | } |
aoqi@1 | 1657 | #endif |
aoqi@1 | 1658 | |
aoqi@1 | 1659 | // jvmti/jvmpi support |
aoqi@1 | 1660 | __ notify_method_entry(); |
aoqi@1 | 1661 | |
aoqi@1 | 1662 | __ dispatch_next(vtos); |
aoqi@1 | 1663 | |
aoqi@1 | 1664 | // invocation counter overflow |
aoqi@1 | 1665 | if (inc_counter) { |
aoqi@1 | 1666 | if (ProfileInterpreter) { |
aoqi@1 | 1667 | // We have decided to profile this method in the interpreter |
aoqi@1 | 1668 | __ bind(profile_method); |
aoqi@6880 | 1669 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
aoqi@6880 | 1670 | InterpreterRuntime::profile_method)); |
aoqi@1 | 1671 | __ set_method_data_pointer_for_bcp(); |
aoqi@1 | 1672 | __ get_method(Rmethod); |
aoqi@1 | 1673 | __ b(profile_method_continue); |
aoqi@1 | 1674 | __ delayed()->nop(); |
aoqi@1 | 1675 | } |
aoqi@1 | 1676 | // Handle overflow of counter and compile method |
aoqi@1 | 1677 | __ bind(invocation_counter_overflow); |
aoqi@6880 | 1678 | generate_counter_overflow(&continue_after_compile); |
aoqi@1 | 1679 | } |
aoqi@1 | 1680 | |
aoqi@1 | 1681 | return entry_point; |
aoqi@1 | 1682 | } |
aoqi@1 | 1683 | |
aoqi@1 | 1684 | // Entry points |
aoqi@1 | 1685 | // |
aoqi@1 | 1686 | // Here we generate the various kind of entries into the interpreter. |
aoqi@1 | 1687 | // The two main entry type are generic bytecode methods and native |
aoqi@1 | 1688 | // call method. These both come in synchronized and non-synchronized |
aoqi@1 | 1689 | // versions but the frame layout they create is very similar. The |
aoqi@1 | 1690 | // other method entry types are really just special purpose entries |
aoqi@1 | 1691 | // that are really entry and interpretation all in one. These are for |
aoqi@1 | 1692 | // trivial methods like accessor, empty, or special math methods. |
aoqi@1 | 1693 | // |
aoqi@1 | 1694 | // When control flow reaches any of the entry types for the interpreter |
aoqi@1 | 1695 | // the following holds -> |
aoqi@1 | 1696 | // |
aoqi@1 | 1697 | // Arguments: |
aoqi@1 | 1698 | // |
aoqi@1 | 1699 | // Rmethod: Method* |
aoqi@1 | 1700 | // V0: receiver |
aoqi@1 | 1701 | // |
aoqi@1 | 1702 | // |
aoqi@1 | 1703 | // Stack layout immediately at entry |
aoqi@1 | 1704 | // |
aoqi@1 | 1705 | // [ parameter n-1 ] <--- sp |
aoqi@1 | 1706 | // ... |
aoqi@1 | 1707 | // [ parameter 0 ] |
aoqi@1 | 1708 | // [ expression stack ] (caller's java expression stack) |
aoqi@1 | 1709 | |
aoqi@1 | 1710 | // Assuming that we don't go to one of the trivial specialized entries |
aoqi@1 | 1711 | // the stack will look like below when we are ready to execute the |
aoqi@1 | 1712 | // first bytecode (or call the native routine). The register usage |
aoqi@1 | 1713 | // will be as the template based interpreter expects (see |
aoqi@1 | 1714 | // interpreter_amd64.hpp). |
aoqi@1 | 1715 | // |
aoqi@1 | 1716 | // local variables follow incoming parameters immediately; i.e. |
aoqi@1 | 1717 | // the return address is moved to the end of the locals). |
aoqi@1 | 1718 | // |
aoqi@6880 | 1719 | // [ monitor entry ] <--- sp |
aoqi@1 | 1720 | // ... |
aoqi@6880 | 1721 | // [ monitor entry ] |
aoqi@1 | 1722 | // [ monitor block top ] ( the top monitor entry ) |
aoqi@1 | 1723 | // [ byte code pointer ] (if native, bcp = 0) |
aoqi@1 | 1724 | // [ constant pool cache ] |
aoqi@1 | 1725 | // [ Method* ] |
aoqi@6880 | 1726 | // [ locals offset ] |
aoqi@1 | 1727 | // [ sender's sp ] |
aoqi@1 | 1728 | // [ sender's fp ] |
aoqi@1 | 1729 | // [ return address ] <--- fp |
aoqi@1 | 1730 | // [ local var m-1 ] |
aoqi@1 | 1731 | // ... |
aoqi@1 | 1732 | // [ local var 0 ] |
aoqi@1 | 1733 | // [ argumnet word n-1 ] <--- ( sender's sp ) |
aoqi@1 | 1734 | // ... |
aoqi@1 | 1735 | // [ argument word 0 ] <--- S7 |
aoqi@1 | 1736 | |
aoqi@1 | 1737 | address AbstractInterpreterGenerator::generate_method_entry( |
aoqi@1 | 1738 | AbstractInterpreter::MethodKind kind) { |
aoqi@1 | 1739 | // determine code generation flags |
aoqi@1 | 1740 | bool synchronized = false; |
aoqi@1 | 1741 | address entry_point = NULL; |
aoqi@6880 | 1742 | switch (kind) { |
aoqi@6880 | 1743 | case Interpreter::zerolocals : |
aoqi@6880 | 1744 | break; |
aoqi@6880 | 1745 | case Interpreter::zerolocals_synchronized: |
aoqi@6880 | 1746 | synchronized = true; |
aoqi@6880 | 1747 | break; |
aoqi@6880 | 1748 | case Interpreter::native : |
aoqi@6880 | 1749 | entry_point = ((InterpreterGenerator*)this)->generate_native_entry(false); |
aoqi@6880 | 1750 | break; |
aoqi@6880 | 1751 | case Interpreter::native_synchronized : |
aoqi@6880 | 1752 | entry_point = ((InterpreterGenerator*)this)->generate_native_entry(true); |
aoqi@6880 | 1753 | break; |
aoqi@6880 | 1754 | case Interpreter::empty : |
aoqi@6880 | 1755 | entry_point = ((InterpreterGenerator*)this)->generate_empty_entry(); |
aoqi@6880 | 1756 | break; |
aoqi@6880 | 1757 | case Interpreter::accessor : |
aoqi@6880 | 1758 | entry_point = ((InterpreterGenerator*)this)->generate_accessor_entry(); |
aoqi@6880 | 1759 | break; |
aoqi@6880 | 1760 | case Interpreter::abstract : |
aoqi@6880 | 1761 | entry_point = ((InterpreterGenerator*)this)->generate_abstract_entry(); |
aoqi@6880 | 1762 | break; |
aoqi@1 | 1763 | |
aoqi@6880 | 1764 | case Interpreter::java_lang_math_sin : // fall thru |
aoqi@6880 | 1765 | case Interpreter::java_lang_math_cos : // fall thru |
aoqi@6880 | 1766 | case Interpreter::java_lang_math_tan : // fall thru |
aoqi@6880 | 1767 | case Interpreter::java_lang_math_log : // fall thru |
aoqi@6880 | 1768 | case Interpreter::java_lang_math_log10 : // fall thru |
aoqi@6880 | 1769 | case Interpreter::java_lang_math_pow : // fall thru |
aoqi@6880 | 1770 | case Interpreter::java_lang_math_exp : break; |
aoqi@6880 | 1771 | case Interpreter::java_lang_math_abs : // fall thru |
aoqi@6880 | 1772 | case Interpreter::java_lang_math_sqrt : |
aoqi@6880 | 1773 | entry_point = ((InterpreterGenerator*)this)->generate_math_entry(kind); break; |
aoqi@6880 | 1774 | case Interpreter::java_lang_ref_reference_get: |
aoqi@6880 | 1775 | entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); break; |
aoqi@6880 | 1776 | default: |
aoqi@6880 | 1777 | fatal(err_msg("unexpected method kind: %d", kind)); |
aoqi@6880 | 1778 | break; |
aoqi@6880 | 1779 | } |
aoqi@6880 | 1780 | if (entry_point) return entry_point; |
aoqi@1 | 1781 | |
aoqi@6880 | 1782 | return ((InterpreterGenerator*)this)->generate_normal_entry(synchronized); |
aoqi@1 | 1783 | } |
aoqi@1 | 1784 | |
aoqi@1 | 1785 | // These should never be compiled since the interpreter will prefer |
aoqi@6880 | 1786 | // the compiled version to the intrinsic version. |
aoqi@1 | 1787 | bool AbstractInterpreter::can_be_compiled(methodHandle m) { |
aoqi@1 | 1788 | switch (method_kind(m)) { |
aoqi@1 | 1789 | case Interpreter::java_lang_math_sin : // fall thru |
aoqi@1 | 1790 | case Interpreter::java_lang_math_cos : // fall thru |
aoqi@1 | 1791 | case Interpreter::java_lang_math_tan : // fall thru |
aoqi@1 | 1792 | case Interpreter::java_lang_math_abs : // fall thru |
aoqi@1 | 1793 | case Interpreter::java_lang_math_log : // fall thru |
aoqi@1 | 1794 | case Interpreter::java_lang_math_log10 : // fall thru |
aoqi@1 | 1795 | case Interpreter::java_lang_math_sqrt : // fall thru |
aoqi@1 | 1796 | case Interpreter::java_lang_math_pow : // fall thru |
aoqi@1 | 1797 | case Interpreter::java_lang_math_exp : |
aoqi@1 | 1798 | return false; |
aoqi@1 | 1799 | default: |
aoqi@1 | 1800 | return true; |
aoqi@1 | 1801 | } |
aoqi@1 | 1802 | } |
aoqi@1 | 1803 | |
aoqi@1 | 1804 | // How much stack a method activation needs in words. |
aoqi@1 | 1805 | int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
aoqi@1 | 1806 | |
aoqi@6880 | 1807 | const int entry_size = frame::interpreter_frame_monitor_size(); |
aoqi@1 | 1808 | |
aoqi@6880 | 1809 | // total overhead size: entry_size + (saved ebp thru expr stack bottom). |
aoqi@6880 | 1810 | // be sure to change this if you add/subtract anything to/from the overhead area |
aoqi@6880 | 1811 | const int overhead_size = -(frame::interpreter_frame_initial_sp_offset) + entry_size; |
aoqi@1 | 1812 | |
aoqi@6880 | 1813 | const int stub_code = 6; // see generate_call_stub |
aoqi@6880 | 1814 | // return overhead_size + method->max_locals() + method->max_stack() + stub_code; |
aoqi@6880 | 1815 | const int method_stack = (method->max_locals() + method->max_stack()) * |
aoqi@6880 | 1816 | Interpreter::stackElementWords; |
aoqi@6880 | 1817 | return overhead_size + method_stack + stub_code; |
aoqi@1 | 1818 | } |
aoqi@1 | 1819 | |
aoqi@1 | 1820 | void AbstractInterpreter::layout_activation(Method* method, |
aoqi@1 | 1821 | int tempcount, |
aoqi@1 | 1822 | int popframe_extra_args, |
aoqi@1 | 1823 | int moncount, |
aoqi@1 | 1824 | int caller_actual_parameters, |
aoqi@1 | 1825 | int callee_param_count, |
aoqi@1 | 1826 | int callee_locals, |
aoqi@1 | 1827 | frame* caller, |
aoqi@1 | 1828 | frame* interpreter_frame, |
aoqi@1 | 1829 | bool is_top_frame, |
aoqi@1 | 1830 | bool is_bottom_frame) { |
aoqi@1 | 1831 | // Note: This calculation must exactly parallel the frame setup |
aoqi@1 | 1832 | // in AbstractInterpreterGenerator::generate_method_entry. |
aoqi@1 | 1833 | // If interpreter_frame!=NULL, set up the method, locals, and monitors. |
aoqi@1 | 1834 | // The frame interpreter_frame, if not NULL, is guaranteed to be the |
aoqi@1 | 1835 | // right size, as determined by a previous call to this method. |
aoqi@1 | 1836 | // It is also guaranteed to be walkable even though it is in a skeletal state |
aoqi@1 | 1837 | |
aoqi@1 | 1838 | // fixed size of an interpreter frame: |
aoqi@6880 | 1839 | |
aoqi@6880 | 1840 | int max_locals = method->max_locals() * Interpreter::stackElementWords; |
aoqi@6880 | 1841 | int extra_locals = (method->max_locals() - method->size_of_parameters()) * Interpreter::stackElementWords; |
aoqi@1 | 1842 | |
aoqi@1 | 1843 | #ifdef ASSERT |
aoqi@1 | 1844 | if (!EnableInvokeDynamic) { |
aoqi@1 | 1845 | // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences? |
aoqi@1 | 1846 | // Probably, since deoptimization doesn't work yet. |
aoqi@1 | 1847 | assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable"); |
aoqi@1 | 1848 | } |
aoqi@1 | 1849 | assert(caller->sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable(2)"); |
aoqi@1 | 1850 | #endif |
aoqi@1 | 1851 | |
aoqi@1 | 1852 | interpreter_frame->interpreter_frame_set_method(method); |
aoqi@1 | 1853 | // NOTE the difference in using sender_sp and interpreter_frame_sender_sp |
aoqi@1 | 1854 | // interpreter_frame_sender_sp is the original sp of the caller (the unextended_sp) |
aoqi@1 | 1855 | // and sender_sp is fp+8 |
aoqi@1 | 1856 | intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1; |
aoqi@1 | 1857 | |
aoqi@1 | 1858 | #ifdef ASSERT |
aoqi@1 | 1859 | if (caller->is_interpreted_frame()) { |
aoqi@1 | 1860 | assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement"); |
aoqi@1 | 1861 | } |
aoqi@1 | 1862 | #endif |
aoqi@1 | 1863 | |
aoqi@6880 | 1864 | interpreter_frame->interpreter_frame_set_locals(locals); |
aoqi@6880 | 1865 | BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin(); |
aoqi@6880 | 1866 | BasicObjectLock* monbot = montop - moncount; |
aoqi@6880 | 1867 | interpreter_frame->interpreter_frame_set_monitor_end(montop - moncount); |
aoqi@1 | 1868 | |
aoqi@6880 | 1869 | //set last sp; |
aoqi@6880 | 1870 | intptr_t* esp = (intptr_t*) monbot - tempcount*Interpreter::stackElementWords - |
aoqi@6880 | 1871 | popframe_extra_args; |
aoqi@6880 | 1872 | interpreter_frame->interpreter_frame_set_last_sp(esp); |
aoqi@6880 | 1873 | // All frames but the initial interpreter frame we fill in have a |
aoqi@6880 | 1874 | // value for sender_sp that allows walking the stack but isn't |
aoqi@6880 | 1875 | // truly correct. Correct the value here. |
aoqi@6880 | 1876 | // |
aoqi@6880 | 1877 | if (extra_locals != 0 && |
aoqi@6880 | 1878 | interpreter_frame->sender_sp() == interpreter_frame->interpreter_frame_sender_sp() ) { |
aoqi@1 | 1879 | interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + extra_locals); |
aoqi@1 | 1880 | } |
aoqi@6880 | 1881 | *interpreter_frame->interpreter_frame_cache_addr() = method->constants()->cache(); |
aoqi@1 | 1882 | } |
aoqi@1 | 1883 | |
aoqi@1 | 1884 | //----------------------------------------------------------------------------- |
aoqi@1 | 1885 | // Exceptions |
aoqi@1 | 1886 | |
aoqi@1 | 1887 | void TemplateInterpreterGenerator::generate_throw_exception() { |
aoqi@1 | 1888 | // Entry point in previous activation (i.e., if the caller was |
aoqi@1 | 1889 | // interpreted) |
aoqi@1 | 1890 | Interpreter::_rethrow_exception_entry = __ pc(); |
aoqi@1 | 1891 | // Restore sp to interpreter_frame_last_sp even though we are going |
aoqi@1 | 1892 | // to empty the expression stack for the exception processing. |
aoqi@6880 | 1893 | __ sd(R0,FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 1894 | |
aoqi@1 | 1895 | // V0: exception |
aoqi@1 | 1896 | // V1: return address/pc that threw exception |
aoqi@1 | 1897 | __ restore_bcp(); // esi points to call/send |
aoqi@1 | 1898 | __ restore_locals(); |
aoqi@1 | 1899 | |
aoqi@1 | 1900 | //add for compressedoops |
aoqi@1 | 1901 | __ reinit_heapbase(); |
aoqi@1 | 1902 | // Entry point for exceptions thrown within interpreter code |
aoqi@6880 | 1903 | Interpreter::_throw_exception_entry = __ pc(); |
aoqi@1 | 1904 | // expression stack is undefined here |
aoqi@1 | 1905 | // V0: exception |
aoqi@1 | 1906 | // BCP: exception bcp |
aoqi@1 | 1907 | __ verify_oop(V0); |
aoqi@1 | 1908 | |
aoqi@1 | 1909 | // expression stack must be empty before entering the VM in case of an exception |
aoqi@1 | 1910 | __ empty_expression_stack(); |
aoqi@1 | 1911 | // find exception handler address and preserve exception oop |
aoqi@1 | 1912 | __ move(A1, V0); |
aoqi@1 | 1913 | __ call_VM(V1, CAST_FROM_FN_PTR(address, InterpreterRuntime::exception_handler_for_exception), A1); |
aoqi@1 | 1914 | // V0: exception handler entry point |
aoqi@1 | 1915 | // V1: preserved exception oop |
aoqi@1 | 1916 | // S0: bcp for exception handler |
aoqi@1 | 1917 | __ daddi(SP, SP, (-1) * wordSize); |
aoqi@1 | 1918 | __ sd(V1, SP, 0); // push exception which is now the only value on the stack |
aoqi@1 | 1919 | __ jr(V0); // jump to exception handler (may be _remove_activation_entry!) |
aoqi@1 | 1920 | __ delayed()->nop(); |
aoqi@1 | 1921 | |
aoqi@1 | 1922 | // If the exception is not handled in the current frame the frame is removed and |
aoqi@1 | 1923 | // the exception is rethrown (i.e. exception continuation is _rethrow_exception). |
aoqi@1 | 1924 | // |
aoqi@1 | 1925 | // Note: At this point the bci is still the bxi for the instruction which caused |
aoqi@1 | 1926 | // the exception and the expression stack is empty. Thus, for any VM calls |
aoqi@1 | 1927 | // at this point, GC will find a legal oop map (with empty expression stack). |
aoqi@1 | 1928 | |
aoqi@1 | 1929 | // In current activation |
aoqi@1 | 1930 | // V0: exception |
aoqi@1 | 1931 | // BCP: exception bcp |
aoqi@1 | 1932 | |
aoqi@1 | 1933 | // |
aoqi@1 | 1934 | // JVMTI PopFrame support |
aoqi@1 | 1935 | // |
aoqi@1 | 1936 | |
aoqi@1 | 1937 | Interpreter::_remove_activation_preserving_args_entry = __ pc(); |
aoqi@1 | 1938 | __ empty_expression_stack(); |
aoqi@1 | 1939 | // Set the popframe_processing bit in pending_popframe_condition indicating that we are |
aoqi@1 | 1940 | // currently handling popframe, so that call_VMs that may happen later do not trigger new |
aoqi@1 | 1941 | // popframe handling cycles. |
aoqi@1 | 1942 | #ifndef OPT_THREAD |
aoqi@1 | 1943 | Register thread = T2; |
aoqi@1 | 1944 | __ get_thread(T2); |
aoqi@1 | 1945 | #else |
aoqi@1 | 1946 | Register thread = TREG; |
aoqi@1 | 1947 | #endif |
aoqi@1 | 1948 | __ lw(T3, thread, in_bytes(JavaThread::popframe_condition_offset())); |
aoqi@1 | 1949 | __ ori(T3, T3, JavaThread::popframe_processing_bit); |
aoqi@1 | 1950 | __ sw(T3, thread, in_bytes(JavaThread::popframe_condition_offset())); |
aoqi@1 | 1951 | |
aoqi@1 | 1952 | #ifndef CORE |
aoqi@1 | 1953 | { |
aoqi@1 | 1954 | // Check to see whether we are returning to a deoptimized frame. |
aoqi@1 | 1955 | // (The PopFrame call ensures that the caller of the popped frame is |
aoqi@1 | 1956 | // either interpreted or compiled and deoptimizes it if compiled.) |
aoqi@1 | 1957 | // In this case, we can't call dispatch_next() after the frame is |
aoqi@1 | 1958 | // popped, but instead must save the incoming arguments and restore |
aoqi@1 | 1959 | // them after deoptimization has occurred. |
aoqi@1 | 1960 | // |
aoqi@1 | 1961 | // Note that we don't compare the return PC against the |
aoqi@1 | 1962 | // deoptimization blob's unpack entry because of the presence of |
aoqi@1 | 1963 | // adapter frames in C2. |
aoqi@1 | 1964 | Label caller_not_deoptimized; |
aoqi@1 | 1965 | __ ld(A0, FP, frame::return_addr_offset * wordSize); |
aoqi@1 | 1966 | __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::interpreter_contains), A0); |
aoqi@1 | 1967 | __ bne(V0, R0, caller_not_deoptimized); |
aoqi@1 | 1968 | __ delayed()->nop(); |
aoqi@1 | 1969 | |
aoqi@1 | 1970 | // Compute size of arguments for saving when returning to deoptimized caller |
aoqi@1 | 1971 | __ get_method(A1); |
aoqi@6880 | 1972 | __ verify_oop(A1); |
aoqi@6880 | 1973 | __ ld(A1,A1,in_bytes(Method::const_offset())); |
aoqi@1 | 1974 | __ lhu(A1, A1, in_bytes(ConstMethod::size_of_parameters_offset())); |
aoqi@1 | 1975 | __ shl(A1, Interpreter::logStackElementSize); |
aoqi@1 | 1976 | __ restore_locals(); |
aoqi@1 | 1977 | __ dsub(A2, LVP, T0); |
aoqi@1 | 1978 | __ daddiu(A2, A2, wordSize); |
aoqi@1 | 1979 | // Save these arguments |
aoqi@1 | 1980 | #ifndef OPT_THREAD |
aoqi@1 | 1981 | __ get_thread(A0); |
aoqi@1 | 1982 | #else |
aoqi@1 | 1983 | __ move(A0, TREG); |
aoqi@1 | 1984 | #endif |
aoqi@1 | 1985 | __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, Deoptimization::popframe_preserve_args), A0, A1, A2); |
aoqi@1 | 1986 | |
aoqi@1 | 1987 | __ remove_activation(vtos, T9, false, false, false); |
aoqi@1 | 1988 | |
aoqi@1 | 1989 | // Inform deoptimization that it is responsible for restoring these arguments |
aoqi@1 | 1990 | #ifndef OPT_THREAD |
aoqi@1 | 1991 | __ get_thread(thread); |
aoqi@1 | 1992 | #endif |
aoqi@1 | 1993 | __ move(AT, JavaThread::popframe_force_deopt_reexecution_bit); |
aoqi@1 | 1994 | __ sw(AT, thread, in_bytes(JavaThread::popframe_condition_offset())); |
aoqi@1 | 1995 | // Continue in deoptimization handler |
aoqi@1 | 1996 | __ jr(T9); |
aoqi@1 | 1997 | __ delayed()->nop(); |
aoqi@1 | 1998 | |
aoqi@1 | 1999 | __ bind(caller_not_deoptimized); |
aoqi@1 | 2000 | } |
aoqi@1 | 2001 | #endif /* !CORE */ |
aoqi@1 | 2002 | |
aoqi@6880 | 2003 | __ remove_activation(vtos, T3, |
aoqi@6880 | 2004 | /* throw_monitor_exception */ false, |
aoqi@6880 | 2005 | /* install_monitor_exception */ false, |
aoqi@6880 | 2006 | /* notify_jvmdi */ false); |
aoqi@1 | 2007 | |
aoqi@1 | 2008 | // Clear the popframe condition flag |
aoqi@1 | 2009 | // Finish with popframe handling |
aoqi@1 | 2010 | // A previous I2C followed by a deoptimization might have moved the |
aoqi@1 | 2011 | // outgoing arguments further up the stack. PopFrame expects the |
aoqi@1 | 2012 | // mutations to those outgoing arguments to be preserved and other |
aoqi@1 | 2013 | // constraints basically require this frame to look exactly as |
aoqi@1 | 2014 | // though it had previously invoked an interpreted activation with |
aoqi@1 | 2015 | // no space between the top of the expression stack (current |
aoqi@1 | 2016 | // last_sp) and the top of stack. Rather than force deopt to |
aoqi@1 | 2017 | // maintain this kind of invariant all the time we call a small |
aoqi@1 | 2018 | // fixup routine to move the mutated arguments onto the top of our |
aoqi@1 | 2019 | // expression stack if necessary. |
aoqi@1 | 2020 | __ move(T8, SP); |
aoqi@1 | 2021 | __ ld(A2, FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 2022 | #ifndef OPT_THREAD |
aoqi@1 | 2023 | __ get_thread(thread); |
aoqi@1 | 2024 | #endif |
aoqi@1 | 2025 | // PC must point into interpreter here |
aoqi@1 | 2026 | __ set_last_Java_frame(thread, noreg, FP, __ pc()); |
aoqi@1 | 2027 | __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::popframe_move_outgoing_args), thread, T8, A2); |
fujie@9171 | 2028 | __ reset_last_Java_frame(thread, true); |
aoqi@1 | 2029 | // Restore the last_sp and null it out |
aoqi@1 | 2030 | __ ld(SP, FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 2031 | __ sd(R0, FP, frame::interpreter_frame_last_sp_offset * wordSize); |
aoqi@1 | 2032 | |
aoqi@1 | 2033 | |
aoqi@1 | 2034 | |
aoqi@6880 | 2035 | __ move(AT, JavaThread::popframe_inactive); |
aoqi@1 | 2036 | __ sw(AT, thread, in_bytes(JavaThread::popframe_condition_offset())); |
aoqi@1 | 2037 | |
aoqi@1 | 2038 | // Finish with popframe handling |
aoqi@1 | 2039 | __ restore_bcp(); |
aoqi@1 | 2040 | __ restore_locals(); |
aoqi@1 | 2041 | #ifndef CORE |
aoqi@1 | 2042 | // The method data pointer was incremented already during |
aoqi@1 | 2043 | // call profiling. We have to restore the mdp for the current bcp. |
aoqi@1 | 2044 | if (ProfileInterpreter) { |
aoqi@1 | 2045 | __ set_method_data_pointer_for_bcp(); |
aoqi@1 | 2046 | } |
aoqi@1 | 2047 | #endif // !CORE |
aoqi@1 | 2048 | // Clear the popframe condition flag |
aoqi@1 | 2049 | #ifndef OPT_THREAD |
aoqi@1 | 2050 | __ get_thread(thread); |
aoqi@6880 | 2051 | #endif |
aoqi@6880 | 2052 | __ move(AT, JavaThread::popframe_inactive); |
aoqi@6880 | 2053 | __ sw(AT, thread, in_bytes(JavaThread::popframe_condition_offset())); |
aoqi@1 | 2054 | __ dispatch_next(vtos); |
aoqi@1 | 2055 | // end of PopFrame support |
aoqi@1 | 2056 | |
aoqi@1 | 2057 | Interpreter::_remove_activation_entry = __ pc(); |
aoqi@1 | 2058 | |
aoqi@1 | 2059 | // preserve exception over this code sequence |
aoqi@1 | 2060 | __ ld(T0, SP, 0); |
aoqi@1 | 2061 | __ daddi(SP, SP, wordSize); |
aoqi@1 | 2062 | #ifndef OPT_THREAD |
aoqi@1 | 2063 | __ get_thread(thread); |
aoqi@1 | 2064 | #endif |
aoqi@1 | 2065 | __ sd(T0, thread, in_bytes(JavaThread::vm_result_offset())); |
aoqi@1 | 2066 | // remove the activation (without doing throws on illegalMonitorExceptions) |
aoqi@1 | 2067 | __ remove_activation(vtos, T3, false, true, false); |
aoqi@1 | 2068 | // restore exception |
aoqi@1 | 2069 | __ get_vm_result(T0, thread); |
aoqi@1 | 2070 | __ verify_oop(T0); |
aoqi@1 | 2071 | |
aoqi@1 | 2072 | // Inbetween activations - previous activation type unknown yet |
aoqi@1 | 2073 | // compute continuation point - the continuation point expects |
aoqi@1 | 2074 | // the following registers set up: |
aoqi@1 | 2075 | // |
aoqi@6880 | 2076 | // T0: exception eax |
aoqi@6880 | 2077 | // T1: return address/pc that threw exception edx |
aoqi@6880 | 2078 | // SP: expression stack of caller esp |
aoqi@6880 | 2079 | // FP: ebp of caller ebp |
aoqi@1 | 2080 | __ daddi(SP, SP, (-2) * wordSize); |
aoqi@6880 | 2081 | __ sd(T0, SP, wordSize); // save exception |
aoqi@1 | 2082 | __ sd(T3, SP, 0); // save return address |
aoqi@1 | 2083 | __ move(A1, T3); |
aoqi@1 | 2084 | __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, A1); |
aoqi@1 | 2085 | __ move(T9, V0); // save exception handler |
aoqi@6880 | 2086 | __ ld(V0, SP, wordSize); // restore exception |
aoqi@1 | 2087 | __ ld(V1, SP, 0); // restore return address |
aoqi@1 | 2088 | __ daddi(SP, SP, 2 * wordSize); |
aoqi@1 | 2089 | |
aoqi@1 | 2090 | // Note that an "issuing PC" is actually the next PC after the call |
aoqi@1 | 2091 | __ jr(T9); // jump to exception handler of caller |
aoqi@1 | 2092 | __ delayed()->nop(); |
aoqi@1 | 2093 | } |
aoqi@1 | 2094 | |
aoqi@1 | 2095 | |
aoqi@1 | 2096 | // |
aoqi@1 | 2097 | // JVMTI ForceEarlyReturn support |
aoqi@1 | 2098 | // |
aoqi@1 | 2099 | address TemplateInterpreterGenerator::generate_earlyret_entry_for(TosState state) { |
aoqi@1 | 2100 | address entry = __ pc(); |
aoqi@1 | 2101 | __ restore_bcp(); |
aoqi@1 | 2102 | __ restore_locals(); |
aoqi@1 | 2103 | __ empty_expression_stack(); |
aoqi@1 | 2104 | __ empty_FPU_stack(); |
aoqi@1 | 2105 | __ load_earlyret_value(state); |
aoqi@1 | 2106 | |
aoqi@1 | 2107 | #ifndef OPT_THREAD |
aoqi@1 | 2108 | __ get_thread(TREG); |
aoqi@1 | 2109 | #endif |
aoqi@1 | 2110 | __ ld_ptr(T9, TREG, in_bytes(JavaThread::jvmti_thread_state_offset())); |
aoqi@1 | 2111 | //const Address cond_addr(ecx, JvmtiThreadState::earlyret_state_offset()); |
aoqi@1 | 2112 | const Address cond_addr(T9, in_bytes(JvmtiThreadState::earlyret_state_offset())); |
aoqi@1 | 2113 | // Clear the earlyret state |
aoqi@1 | 2114 | __ move(AT,JvmtiThreadState::earlyret_inactive); |
aoqi@6880 | 2115 | __ sw(AT,cond_addr); |
fujie@33 | 2116 | __ sync(); |
aoqi@1 | 2117 | |
aoqi@1 | 2118 | |
aoqi@1 | 2119 | __ remove_activation(state, T0, |
aoqi@6880 | 2120 | false, /* throw_monitor_exception */ |
aoqi@6880 | 2121 | false, /* install_monitor_exception */ |
aoqi@6880 | 2122 | true); /* notify_jvmdi */ |
fujie@32 | 2123 | __ sync(); |
aoqi@6880 | 2124 | __ jr(T0); |
aoqi@6880 | 2125 | __ delayed()->nop(); |
aoqi@1 | 2126 | return entry; |
aoqi@1 | 2127 | } // end of ForceEarlyReturn support |
aoqi@1 | 2128 | |
aoqi@1 | 2129 | |
aoqi@1 | 2130 | //----------------------------------------------------------------------------- |
aoqi@1 | 2131 | // Helper for vtos entry point generation |
aoqi@1 | 2132 | |
aoqi@1 | 2133 | void TemplateInterpreterGenerator::set_vtos_entry_points(Template* t, |
aoqi@1 | 2134 | address& bep, |
aoqi@1 | 2135 | address& cep, |
aoqi@1 | 2136 | address& sep, |
aoqi@1 | 2137 | address& aep, |
aoqi@1 | 2138 | address& iep, |
aoqi@1 | 2139 | address& lep, |
aoqi@1 | 2140 | address& fep, |
aoqi@1 | 2141 | address& dep, |
aoqi@1 | 2142 | address& vep) { |
aoqi@1 | 2143 | assert(t->is_valid() && t->tos_in() == vtos, "illegal template"); |
aoqi@1 | 2144 | Label L; |
aoqi@1 | 2145 | fep = __ pc(); __ push(ftos); __ b(L); __ delayed()->nop(); |
aoqi@1 | 2146 | dep = __ pc(); __ push(dtos); __ b(L); __ delayed()->nop(); |
aoqi@1 | 2147 | lep = __ pc(); __ push(ltos); __ b(L); __ delayed()->nop(); |
aoqi@1 | 2148 | aep =__ pc(); __ push(atos); __ b(L); __ delayed()->nop(); |
aoqi@6880 | 2149 | bep = cep = sep = |
aoqi@6880 | 2150 | iep = __ pc(); __ push(itos); |
aoqi@6880 | 2151 | vep = __ pc(); |
aoqi@6880 | 2152 | __ bind(L); |
aoqi@1 | 2153 | generate_and_dispatch(t); |
aoqi@1 | 2154 | } |
aoqi@1 | 2155 | |
aoqi@1 | 2156 | |
aoqi@1 | 2157 | //----------------------------------------------------------------------------- |
aoqi@1 | 2158 | // Generation of individual instructions |
aoqi@1 | 2159 | |
aoqi@1 | 2160 | // helpers for generate_and_dispatch |
aoqi@1 | 2161 | |
aoqi@1 | 2162 | |
aoqi@1 | 2163 | InterpreterGenerator::InterpreterGenerator(StubQueue* code) |
aoqi@1 | 2164 | : TemplateInterpreterGenerator(code) { |
aoqi@1 | 2165 | generate_all(); // down here so it can be "virtual" |
aoqi@1 | 2166 | } |
aoqi@1 | 2167 | |
aoqi@1 | 2168 | //----------------------------------------------------------------------------- |
aoqi@1 | 2169 | |
aoqi@1 | 2170 | // Non-product code |
aoqi@1 | 2171 | #ifndef PRODUCT |
aoqi@1 | 2172 | address TemplateInterpreterGenerator::generate_trace_code(TosState state) { |
aoqi@1 | 2173 | address entry = __ pc(); |
aoqi@1 | 2174 | |
aoqi@1 | 2175 | // prepare expression stack |
aoqi@1 | 2176 | __ push(state); // save tosca |
aoqi@1 | 2177 | |
aoqi@9228 | 2178 | // tos & tos2 |
aoqi@1 | 2179 | // trace_bytecode need actually 4 args, the last two is tos&tos2 |
aoqi@1 | 2180 | // this work fine for x86. but mips o32 call convention will store A2-A3 |
aoqi@1 | 2181 | // to the stack position it think is the tos&tos2 |
aoqi@1 | 2182 | // when the expression stack have no more than 2 data, error occur. |
aoqi@1 | 2183 | __ ld(A2, SP, 0); |
aoqi@1 | 2184 | __ ld(A3, SP, 1 * wordSize); |
aoqi@1 | 2185 | |
aoqi@1 | 2186 | // pass arguments & call tracer |
aoqi@1 | 2187 | __ call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::trace_bytecode), RA, A2, A3); |
aoqi@1 | 2188 | __ move(RA, V0); // make sure return address is not destroyed by pop(state) |
aoqi@1 | 2189 | |
aoqi@1 | 2190 | // restore expression stack |
aoqi@1 | 2191 | __ pop(state); // restore tosca |
aoqi@1 | 2192 | |
aoqi@1 | 2193 | // return |
aoqi@1 | 2194 | __ jr(RA); |
aoqi@1 | 2195 | __ delayed()->nop(); |
aoqi@1 | 2196 | |
aoqi@1 | 2197 | return entry; |
aoqi@1 | 2198 | } |
aoqi@1 | 2199 | |
aoqi@1 | 2200 | void TemplateInterpreterGenerator::count_bytecode() { |
aoqi@1 | 2201 | __ li(T8, (long)&BytecodeCounter::_counter_value); |
aoqi@1 | 2202 | __ lw(AT, T8, 0); |
aoqi@1 | 2203 | __ daddi(AT, AT, 1); |
aoqi@1 | 2204 | __ sw(AT, T8, 0); |
aoqi@1 | 2205 | } |
aoqi@1 | 2206 | |
aoqi@1 | 2207 | void TemplateInterpreterGenerator::histogram_bytecode(Template* t) { |
aoqi@6880 | 2208 | __ li(T8, (long)&BytecodeHistogram::_counters[t->bytecode()]); |
aoqi@6880 | 2209 | __ lw(AT, T8, 0); |
aoqi@6880 | 2210 | __ daddi(AT, AT, 1); |
aoqi@6880 | 2211 | __ sw(AT, T8, 0); |
aoqi@1 | 2212 | } |
aoqi@1 | 2213 | |
aoqi@1 | 2214 | void TemplateInterpreterGenerator::histogram_bytecode_pair(Template* t) { |
aoqi@6880 | 2215 | __ li(T8, (long)&BytecodePairHistogram::_index); |
aoqi@6880 | 2216 | __ lw(T9, T8, 0); |
aoqi@6880 | 2217 | __ dsrl(T9, T9, BytecodePairHistogram::log2_number_of_codes); |
aoqi@6880 | 2218 | __ li(T8, ((long)t->bytecode()) << BytecodePairHistogram::log2_number_of_codes); |
aoqi@6880 | 2219 | __ orr(T9, T9, T8); |
aoqi@6880 | 2220 | __ li(T8, (long)&BytecodePairHistogram::_index); |
aoqi@6880 | 2221 | __ sw(T9, T8, 0); |
aoqi@6880 | 2222 | __ dsll(T9, T9, 2); |
aoqi@6880 | 2223 | __ li(T8, (long)BytecodePairHistogram::_counters); |
aoqi@6880 | 2224 | __ dadd(T8, T8, T9); |
aoqi@6880 | 2225 | __ lw(AT, T8, 0); |
aoqi@6880 | 2226 | __ daddi(AT, AT, 1); |
aoqi@6880 | 2227 | __ sw(AT, T8, 0); |
aoqi@1 | 2228 | } |
aoqi@1 | 2229 | |
aoqi@1 | 2230 | |
aoqi@1 | 2231 | void TemplateInterpreterGenerator::trace_bytecode(Template* t) { |
aoqi@1 | 2232 | // Call a little run-time stub to avoid blow-up for each bytecode. |
aoqi@1 | 2233 | // The run-time runtime saves the right registers, depending on |
aoqi@1 | 2234 | // the tosca in-state for the given template. |
aoqi@1 | 2235 | |
aoqi@6880 | 2236 | address entry = Interpreter::trace_code(t->tos_in()); |
aoqi@6880 | 2237 | assert(entry != NULL, "entry must have been generated"); |
aoqi@6880 | 2238 | __ call(entry, relocInfo::none); |
aoqi@6880 | 2239 | __ delayed()->nop(); |
aoqi@6880 | 2240 | //add for compressedoops |
aoqi@6880 | 2241 | __ reinit_heapbase(); |
aoqi@1 | 2242 | } |
aoqi@1 | 2243 | |
aoqi@1 | 2244 | |
aoqi@1 | 2245 | void TemplateInterpreterGenerator::stop_interpreter_at() { |
aoqi@1 | 2246 | Label L; |
aoqi@6880 | 2247 | __ li(T8, long(&BytecodeCounter::_counter_value)); |
aoqi@6880 | 2248 | __ lw(T8, T8, 0); |
aoqi@6880 | 2249 | __ move(AT, StopInterpreterAt); |
aoqi@6880 | 2250 | __ bne(T8, AT, L); |
aoqi@6880 | 2251 | __ delayed()->nop(); |
aoqi@6880 | 2252 | __ call(CAST_FROM_FN_PTR(address, os::breakpoint), relocInfo::runtime_call_type); |
aoqi@6880 | 2253 | __ delayed()->nop(); |
aoqi@6880 | 2254 | __ bind(L); |
aoqi@1 | 2255 | } |
aoqi@1 | 2256 | #endif // !PRODUCT |
aoqi@1 | 2257 | #endif // ! CC_INTERP |