Tue, 20 Aug 2013 10:57:50 -0700
8022956: Clang: enable return type warnings on BSD
Reviewed-by: coleenp, sla
never@1445 | 1 | /* |
coleenp@4037 | 2 | * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
twisti@2762 | 3 | * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. |
never@1445 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
never@1445 | 5 | * |
never@1445 | 6 | * This code is free software; you can redistribute it and/or modify it |
never@1445 | 7 | * under the terms of the GNU General Public License version 2 only, as |
never@1445 | 8 | * published by the Free Software Foundation. |
never@1445 | 9 | * |
never@1445 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
never@1445 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
never@1445 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
never@1445 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
never@1445 | 14 | * accompanied this code). |
never@1445 | 15 | * |
never@1445 | 16 | * You should have received a copy of the GNU General Public License version |
never@1445 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
never@1445 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
never@1445 | 19 | * |
trims@1907 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 21 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 22 | * questions. |
never@1445 | 23 | * |
never@1445 | 24 | */ |
never@1445 | 25 | |
stefank@2314 | 26 | #include "precompiled.hpp" |
stefank@2314 | 27 | #include "asm/assembler.hpp" |
stefank@2314 | 28 | #include "interpreter/bytecodeHistogram.hpp" |
stefank@2314 | 29 | #include "interpreter/cppInterpreter.hpp" |
stefank@2314 | 30 | #include "interpreter/interpreter.hpp" |
stefank@2314 | 31 | #include "interpreter/interpreterGenerator.hpp" |
stefank@2314 | 32 | #include "interpreter/interpreterRuntime.hpp" |
stefank@2314 | 33 | #include "oops/arrayOop.hpp" |
coleenp@4037 | 34 | #include "oops/methodData.hpp" |
coleenp@4037 | 35 | #include "oops/method.hpp" |
stefank@2314 | 36 | #include "oops/oop.inline.hpp" |
stefank@2314 | 37 | #include "prims/jvmtiExport.hpp" |
stefank@2314 | 38 | #include "prims/jvmtiThreadState.hpp" |
stefank@2314 | 39 | #include "runtime/arguments.hpp" |
stefank@2314 | 40 | #include "runtime/deoptimization.hpp" |
stefank@2314 | 41 | #include "runtime/frame.inline.hpp" |
stefank@2314 | 42 | #include "runtime/interfaceSupport.hpp" |
stefank@2314 | 43 | #include "runtime/sharedRuntime.hpp" |
stefank@2314 | 44 | #include "runtime/stubRoutines.hpp" |
stefank@2314 | 45 | #include "runtime/synchronizer.hpp" |
stefank@2314 | 46 | #include "runtime/timer.hpp" |
stefank@2314 | 47 | #include "runtime/vframeArray.hpp" |
stefank@2314 | 48 | #include "stack_zero.inline.hpp" |
stefank@2314 | 49 | #include "utilities/debug.hpp" |
jprovino@4542 | 50 | #include "utilities/macros.hpp" |
stefank@2314 | 51 | #ifdef SHARK |
stefank@2314 | 52 | #include "shark/shark_globals.hpp" |
stefank@2314 | 53 | #endif |
never@1445 | 54 | |
never@1445 | 55 | #ifdef CC_INTERP |
never@1445 | 56 | |
never@1445 | 57 | #define fixup_after_potential_safepoint() \ |
never@1445 | 58 | method = istate->method() |
never@1445 | 59 | |
twisti@2762 | 60 | #define CALL_VM_NOCHECK_NOFIX(func) \ |
never@1445 | 61 | thread->set_last_Java_frame(); \ |
never@1445 | 62 | func; \ |
twisti@2762 | 63 | thread->reset_last_Java_frame(); |
twisti@2762 | 64 | |
twisti@2762 | 65 | #define CALL_VM_NOCHECK(func) \ |
twisti@2762 | 66 | CALL_VM_NOCHECK_NOFIX(func) \ |
never@1445 | 67 | fixup_after_potential_safepoint() |
never@1445 | 68 | |
coleenp@4037 | 69 | int CppInterpreter::normal_entry(Method* method, intptr_t UNUSED, TRAPS) { |
never@1445 | 70 | JavaThread *thread = (JavaThread *) THREAD; |
never@1445 | 71 | |
never@1445 | 72 | // Allocate and initialize our frame. |
twisti@1869 | 73 | InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
never@1445 | 74 | thread->push_zero_frame(frame); |
never@1445 | 75 | |
never@1445 | 76 | // Execute those bytecodes! |
never@1445 | 77 | main_loop(0, THREAD); |
twisti@1869 | 78 | |
twisti@1869 | 79 | // No deoptimized frames on the stack |
twisti@1869 | 80 | return 0; |
never@1445 | 81 | } |
never@1445 | 82 | |
never@1445 | 83 | void CppInterpreter::main_loop(int recurse, TRAPS) { |
never@1445 | 84 | JavaThread *thread = (JavaThread *) THREAD; |
never@1445 | 85 | ZeroStack *stack = thread->zero_stack(); |
never@1445 | 86 | |
never@1445 | 87 | // If we are entering from a deopt we may need to call |
never@1445 | 88 | // ourself a few times in order to get to our frame. |
never@1445 | 89 | if (recurse) |
never@1445 | 90 | main_loop(recurse - 1, THREAD); |
never@1445 | 91 | |
never@1445 | 92 | InterpreterFrame *frame = thread->top_zero_frame()->as_interpreter_frame(); |
never@1445 | 93 | interpreterState istate = frame->interpreter_state(); |
coleenp@4037 | 94 | Method* method = istate->method(); |
never@1445 | 95 | |
never@1445 | 96 | intptr_t *result = NULL; |
never@1445 | 97 | int result_slots = 0; |
never@1445 | 98 | |
never@1445 | 99 | while (true) { |
never@1445 | 100 | // We can set up the frame anchor with everything we want at |
never@1445 | 101 | // this point as we are thread_in_Java and no safepoints can |
never@1445 | 102 | // occur until we go to vm mode. We do have to clear flags |
never@1445 | 103 | // on return from vm but that is it. |
never@1445 | 104 | thread->set_last_Java_frame(); |
never@1445 | 105 | |
never@1445 | 106 | // Call the interpreter |
never@1445 | 107 | if (JvmtiExport::can_post_interpreter_events()) |
never@1445 | 108 | BytecodeInterpreter::runWithChecks(istate); |
never@1445 | 109 | else |
never@1445 | 110 | BytecodeInterpreter::run(istate); |
never@1445 | 111 | fixup_after_potential_safepoint(); |
never@1445 | 112 | |
never@1445 | 113 | // Clear the frame anchor |
never@1445 | 114 | thread->reset_last_Java_frame(); |
never@1445 | 115 | |
never@1445 | 116 | // Examine the message from the interpreter to decide what to do |
never@1445 | 117 | if (istate->msg() == BytecodeInterpreter::call_method) { |
coleenp@4037 | 118 | Method* callee = istate->callee(); |
never@1445 | 119 | |
never@1445 | 120 | // Trim back the stack to put the parameters at the top |
never@1445 | 121 | stack->set_sp(istate->stack() + 1); |
never@1445 | 122 | |
never@1445 | 123 | // Make the call |
never@1445 | 124 | Interpreter::invoke_method(callee, istate->callee_entry_point(), THREAD); |
never@1445 | 125 | fixup_after_potential_safepoint(); |
never@1445 | 126 | |
never@1445 | 127 | // Convert the result |
never@1445 | 128 | istate->set_stack(stack->sp() - 1); |
never@1445 | 129 | |
never@1445 | 130 | // Restore the stack |
never@1445 | 131 | stack->set_sp(istate->stack_limit() + 1); |
never@1445 | 132 | |
never@1445 | 133 | // Resume the interpreter |
never@1445 | 134 | istate->set_msg(BytecodeInterpreter::method_resume); |
never@1445 | 135 | } |
never@1445 | 136 | else if (istate->msg() == BytecodeInterpreter::more_monitors) { |
never@1445 | 137 | int monitor_words = frame::interpreter_frame_monitor_size(); |
never@1445 | 138 | |
never@1445 | 139 | // Allocate the space |
twisti@1814 | 140 | stack->overflow_check(monitor_words, THREAD); |
twisti@1814 | 141 | if (HAS_PENDING_EXCEPTION) |
twisti@1814 | 142 | break; |
never@1445 | 143 | stack->alloc(monitor_words * wordSize); |
never@1445 | 144 | |
never@1445 | 145 | // Move the expression stack contents |
never@1445 | 146 | for (intptr_t *p = istate->stack() + 1; p < istate->stack_base(); p++) |
never@1445 | 147 | *(p - monitor_words) = *p; |
never@1445 | 148 | |
never@1445 | 149 | // Move the expression stack pointers |
never@1445 | 150 | istate->set_stack_limit(istate->stack_limit() - monitor_words); |
never@1445 | 151 | istate->set_stack(istate->stack() - monitor_words); |
never@1445 | 152 | istate->set_stack_base(istate->stack_base() - monitor_words); |
never@1445 | 153 | |
never@1445 | 154 | // Zero the new monitor so the interpreter can find it. |
never@1445 | 155 | ((BasicObjectLock *) istate->stack_base())->set_obj(NULL); |
never@1445 | 156 | |
never@1445 | 157 | // Resume the interpreter |
never@1445 | 158 | istate->set_msg(BytecodeInterpreter::got_monitors); |
never@1445 | 159 | } |
never@1445 | 160 | else if (istate->msg() == BytecodeInterpreter::return_from_method) { |
never@1445 | 161 | // Copy the result into the caller's frame |
kvn@1691 | 162 | result_slots = type2size[result_type_of(method)]; |
never@1445 | 163 | assert(result_slots >= 0 && result_slots <= 2, "what?"); |
never@1445 | 164 | result = istate->stack() + result_slots; |
never@1445 | 165 | break; |
never@1445 | 166 | } |
never@1445 | 167 | else if (istate->msg() == BytecodeInterpreter::throwing_exception) { |
never@1445 | 168 | assert(HAS_PENDING_EXCEPTION, "should do"); |
never@1445 | 169 | break; |
never@1445 | 170 | } |
never@1445 | 171 | else if (istate->msg() == BytecodeInterpreter::do_osr) { |
never@1445 | 172 | // Unwind the current frame |
never@1445 | 173 | thread->pop_zero_frame(); |
never@1445 | 174 | |
never@1445 | 175 | // Remove any extension of the previous frame |
never@1445 | 176 | int extra_locals = method->max_locals() - method->size_of_parameters(); |
never@1445 | 177 | stack->set_sp(stack->sp() + extra_locals); |
never@1445 | 178 | |
never@1445 | 179 | // Jump into the OSR method |
never@1445 | 180 | Interpreter::invoke_osr( |
never@1445 | 181 | method, istate->osr_entry(), istate->osr_buf(), THREAD); |
never@1445 | 182 | return; |
never@1445 | 183 | } |
never@1445 | 184 | else { |
never@1445 | 185 | ShouldNotReachHere(); |
never@1445 | 186 | } |
never@1445 | 187 | } |
never@1445 | 188 | |
never@1445 | 189 | // Unwind the current frame |
never@1445 | 190 | thread->pop_zero_frame(); |
never@1445 | 191 | |
never@1445 | 192 | // Pop our local variables |
never@1445 | 193 | stack->set_sp(stack->sp() + method->max_locals()); |
never@1445 | 194 | |
never@1445 | 195 | // Push our result |
never@1445 | 196 | for (int i = 0; i < result_slots; i++) |
never@1445 | 197 | stack->push(result[-i]); |
never@1445 | 198 | } |
never@1445 | 199 | |
coleenp@4037 | 200 | int CppInterpreter::native_entry(Method* method, intptr_t UNUSED, TRAPS) { |
never@1445 | 201 | // Make sure method is native and not abstract |
never@1445 | 202 | assert(method->is_native() && !method->is_abstract(), "should be"); |
never@1445 | 203 | |
never@1445 | 204 | JavaThread *thread = (JavaThread *) THREAD; |
never@1445 | 205 | ZeroStack *stack = thread->zero_stack(); |
never@1445 | 206 | |
never@1445 | 207 | // Allocate and initialize our frame |
twisti@1869 | 208 | InterpreterFrame *frame = InterpreterFrame::build(method, CHECK_0); |
never@1445 | 209 | thread->push_zero_frame(frame); |
never@1445 | 210 | interpreterState istate = frame->interpreter_state(); |
never@1445 | 211 | intptr_t *locals = istate->locals(); |
never@1445 | 212 | |
twisti@1513 | 213 | // Update the invocation counter |
twisti@1513 | 214 | if ((UseCompiler || CountCompiledCalls) && !method->is_synchronized()) { |
jiangli@5065 | 215 | MethodCounters* mcs = method->method_counters(); |
jiangli@5065 | 216 | if (mcs == NULL) { |
jiangli@5065 | 217 | CALL_VM_NOCHECK(mcs = InterpreterRuntime::build_method_counters(thread, method)); |
jiangli@5065 | 218 | if (HAS_PENDING_EXCEPTION) |
jiangli@5065 | 219 | goto unwind_and_return; |
jiangli@5065 | 220 | } |
jiangli@5065 | 221 | InvocationCounter *counter = mcs->invocation_counter(); |
twisti@1513 | 222 | counter->increment(); |
twisti@1513 | 223 | if (counter->reached_InvocationLimit()) { |
twisti@1513 | 224 | CALL_VM_NOCHECK( |
twisti@1513 | 225 | InterpreterRuntime::frequency_counter_overflow(thread, NULL)); |
twisti@1513 | 226 | if (HAS_PENDING_EXCEPTION) |
twisti@1513 | 227 | goto unwind_and_return; |
twisti@1513 | 228 | } |
twisti@1513 | 229 | } |
twisti@1513 | 230 | |
never@1445 | 231 | // Lock if necessary |
never@1445 | 232 | BasicObjectLock *monitor; |
never@1445 | 233 | monitor = NULL; |
never@1445 | 234 | if (method->is_synchronized()) { |
never@1445 | 235 | monitor = (BasicObjectLock*) istate->stack_base(); |
never@1445 | 236 | oop lockee = monitor->obj(); |
never@1445 | 237 | markOop disp = lockee->mark()->set_unlocked(); |
never@1445 | 238 | |
never@1445 | 239 | monitor->lock()->set_displaced_header(disp); |
never@1445 | 240 | if (Atomic::cmpxchg_ptr(monitor, lockee->mark_addr(), disp) != disp) { |
never@1445 | 241 | if (thread->is_lock_owned((address) disp->clear_lock_bits())) { |
never@1445 | 242 | monitor->lock()->set_displaced_header(NULL); |
never@1445 | 243 | } |
never@1445 | 244 | else { |
never@1445 | 245 | CALL_VM_NOCHECK(InterpreterRuntime::monitorenter(thread, monitor)); |
never@1445 | 246 | if (HAS_PENDING_EXCEPTION) |
never@1445 | 247 | goto unwind_and_return; |
never@1445 | 248 | } |
never@1445 | 249 | } |
never@1445 | 250 | } |
never@1445 | 251 | |
never@1445 | 252 | // Get the signature handler |
never@1445 | 253 | InterpreterRuntime::SignatureHandler *handler; { |
never@1445 | 254 | address handlerAddr = method->signature_handler(); |
never@1445 | 255 | if (handlerAddr == NULL) { |
never@1445 | 256 | CALL_VM_NOCHECK(InterpreterRuntime::prepare_native_call(thread, method)); |
never@1445 | 257 | if (HAS_PENDING_EXCEPTION) |
never@1574 | 258 | goto unlock_unwind_and_return; |
never@1445 | 259 | |
never@1445 | 260 | handlerAddr = method->signature_handler(); |
never@1445 | 261 | assert(handlerAddr != NULL, "eh?"); |
never@1445 | 262 | } |
never@1445 | 263 | if (handlerAddr == (address) InterpreterRuntime::slow_signature_handler) { |
never@1445 | 264 | CALL_VM_NOCHECK(handlerAddr = |
never@1445 | 265 | InterpreterRuntime::slow_signature_handler(thread, method, NULL,NULL)); |
never@1445 | 266 | if (HAS_PENDING_EXCEPTION) |
never@1574 | 267 | goto unlock_unwind_and_return; |
never@1445 | 268 | } |
never@1445 | 269 | handler = \ |
never@1445 | 270 | InterpreterRuntime::SignatureHandler::from_handlerAddr(handlerAddr); |
never@1445 | 271 | } |
never@1445 | 272 | |
never@1445 | 273 | // Get the native function entry point |
never@1445 | 274 | address function; |
never@1445 | 275 | function = method->native_function(); |
never@1445 | 276 | assert(function != NULL, "should be set if signature handler is"); |
never@1445 | 277 | |
never@1445 | 278 | // Build the argument list |
twisti@1814 | 279 | stack->overflow_check(handler->argument_count() * 2, THREAD); |
twisti@1814 | 280 | if (HAS_PENDING_EXCEPTION) |
twisti@1814 | 281 | goto unlock_unwind_and_return; |
twisti@1814 | 282 | |
never@1445 | 283 | void **arguments; |
never@1445 | 284 | void *mirror; { |
never@1445 | 285 | arguments = |
never@1445 | 286 | (void **) stack->alloc(handler->argument_count() * sizeof(void **)); |
never@1445 | 287 | void **dst = arguments; |
never@1445 | 288 | |
never@1445 | 289 | void *env = thread->jni_environment(); |
never@1445 | 290 | *(dst++) = &env; |
never@1445 | 291 | |
never@1445 | 292 | if (method->is_static()) { |
never@1445 | 293 | istate->set_oop_temp( |
never@2658 | 294 | method->constants()->pool_holder()->java_mirror()); |
never@1445 | 295 | mirror = istate->oop_temp_addr(); |
never@1445 | 296 | *(dst++) = &mirror; |
never@1445 | 297 | } |
never@1445 | 298 | |
never@1445 | 299 | intptr_t *src = locals; |
never@1445 | 300 | for (int i = dst - arguments; i < handler->argument_count(); i++) { |
never@1445 | 301 | ffi_type *type = handler->argument_type(i); |
never@1445 | 302 | if (type == &ffi_type_pointer) { |
never@1445 | 303 | if (*src) { |
never@1445 | 304 | stack->push((intptr_t) src); |
never@1445 | 305 | *(dst++) = stack->sp(); |
never@1445 | 306 | } |
never@1445 | 307 | else { |
never@1445 | 308 | *(dst++) = src; |
never@1445 | 309 | } |
never@1445 | 310 | src--; |
never@1445 | 311 | } |
never@1445 | 312 | else if (type->size == 4) { |
never@1445 | 313 | *(dst++) = src--; |
never@1445 | 314 | } |
never@1445 | 315 | else if (type->size == 8) { |
never@1445 | 316 | src--; |
never@1445 | 317 | *(dst++) = src--; |
never@1445 | 318 | } |
never@1445 | 319 | else { |
never@1445 | 320 | ShouldNotReachHere(); |
never@1445 | 321 | } |
never@1445 | 322 | } |
never@1445 | 323 | } |
never@1445 | 324 | |
never@1445 | 325 | // Set up the Java frame anchor |
never@1445 | 326 | thread->set_last_Java_frame(); |
never@1445 | 327 | |
never@1445 | 328 | // Change the thread state to _thread_in_native |
never@1445 | 329 | ThreadStateTransition::transition_from_java(thread, _thread_in_native); |
never@1445 | 330 | |
never@1445 | 331 | // Make the call |
never@1445 | 332 | intptr_t result[4 - LogBytesPerWord]; |
never@1445 | 333 | ffi_call(handler->cif(), (void (*)()) function, result, arguments); |
never@1445 | 334 | |
never@1445 | 335 | // Change the thread state back to _thread_in_Java. |
never@1445 | 336 | // ThreadStateTransition::transition_from_native() cannot be used |
never@1445 | 337 | // here because it does not check for asynchronous exceptions. |
never@1445 | 338 | // We have to manage the transition ourself. |
never@1445 | 339 | thread->set_thread_state(_thread_in_native_trans); |
never@1445 | 340 | |
never@1445 | 341 | // Make sure new state is visible in the GC thread |
never@1445 | 342 | if (os::is_MP()) { |
never@1445 | 343 | if (UseMembar) { |
never@1445 | 344 | OrderAccess::fence(); |
never@1445 | 345 | } |
never@1445 | 346 | else { |
never@1445 | 347 | InterfaceSupport::serialize_memory(thread); |
never@1445 | 348 | } |
never@1445 | 349 | } |
never@1445 | 350 | |
never@1445 | 351 | // Handle safepoint operations, pending suspend requests, |
never@1445 | 352 | // and pending asynchronous exceptions. |
never@1445 | 353 | if (SafepointSynchronize::do_call_back() || |
never@1445 | 354 | thread->has_special_condition_for_native_trans()) { |
never@1445 | 355 | JavaThread::check_special_condition_for_native_trans(thread); |
never@1445 | 356 | CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops()); |
never@1445 | 357 | } |
never@1445 | 358 | |
never@1445 | 359 | // Finally we can change the thread state to _thread_in_Java. |
never@1445 | 360 | thread->set_thread_state(_thread_in_Java); |
never@1445 | 361 | fixup_after_potential_safepoint(); |
never@1445 | 362 | |
never@1445 | 363 | // Clear the frame anchor |
never@1445 | 364 | thread->reset_last_Java_frame(); |
never@1445 | 365 | |
never@1445 | 366 | // If the result was an oop then unbox it and store it in |
never@1445 | 367 | // oop_temp where the garbage collector can see it before |
never@1445 | 368 | // we release the handle it might be protected by. |
never@1445 | 369 | if (handler->result_type() == &ffi_type_pointer) { |
never@1445 | 370 | if (result[0]) |
never@1445 | 371 | istate->set_oop_temp(*(oop *) result[0]); |
never@1445 | 372 | else |
never@1445 | 373 | istate->set_oop_temp(NULL); |
never@1445 | 374 | } |
never@1445 | 375 | |
never@1445 | 376 | // Reset handle block |
never@1445 | 377 | thread->active_handles()->clear(); |
never@1445 | 378 | |
never@1574 | 379 | unlock_unwind_and_return: |
never@1574 | 380 | |
never@1574 | 381 | // Unlock if necessary |
never@1574 | 382 | if (monitor) { |
never@1445 | 383 | BasicLock *lock = monitor->lock(); |
never@1445 | 384 | markOop header = lock->displaced_header(); |
never@1445 | 385 | oop rcvr = monitor->obj(); |
never@1445 | 386 | monitor->set_obj(NULL); |
never@1445 | 387 | |
never@1445 | 388 | if (header != NULL) { |
never@1445 | 389 | if (Atomic::cmpxchg_ptr(header, rcvr->mark_addr(), lock) != lock) { |
never@1445 | 390 | monitor->set_obj(rcvr); { |
never@1445 | 391 | HandleMark hm(thread); |
never@1445 | 392 | CALL_VM_NOCHECK(InterpreterRuntime::monitorexit(thread, monitor)); |
never@1445 | 393 | } |
never@1445 | 394 | } |
never@1445 | 395 | } |
never@1445 | 396 | } |
never@1445 | 397 | |
never@1445 | 398 | unwind_and_return: |
never@1445 | 399 | |
never@1445 | 400 | // Unwind the current activation |
never@1445 | 401 | thread->pop_zero_frame(); |
never@1445 | 402 | |
never@1445 | 403 | // Pop our parameters |
never@1445 | 404 | stack->set_sp(stack->sp() + method->size_of_parameters()); |
never@1445 | 405 | |
never@1445 | 406 | // Push our result |
never@1445 | 407 | if (!HAS_PENDING_EXCEPTION) { |
kvn@1691 | 408 | BasicType type = result_type_of(method); |
kvn@1691 | 409 | stack->set_sp(stack->sp() - type2size[type]); |
never@1445 | 410 | |
kvn@1691 | 411 | switch (type) { |
never@1445 | 412 | case T_VOID: |
never@1445 | 413 | break; |
never@1445 | 414 | |
never@1445 | 415 | case T_BOOLEAN: |
never@1445 | 416 | #ifndef VM_LITTLE_ENDIAN |
never@1445 | 417 | result[0] <<= (BitsPerWord - BitsPerByte); |
never@1445 | 418 | #endif |
never@1445 | 419 | SET_LOCALS_INT(*(jboolean *) result != 0, 0); |
never@1445 | 420 | break; |
never@1445 | 421 | |
never@1445 | 422 | case T_CHAR: |
never@1445 | 423 | #ifndef VM_LITTLE_ENDIAN |
never@1445 | 424 | result[0] <<= (BitsPerWord - BitsPerShort); |
never@1445 | 425 | #endif |
never@1445 | 426 | SET_LOCALS_INT(*(jchar *) result, 0); |
never@1445 | 427 | break; |
never@1445 | 428 | |
never@1445 | 429 | case T_BYTE: |
never@1445 | 430 | #ifndef VM_LITTLE_ENDIAN |
never@1445 | 431 | result[0] <<= (BitsPerWord - BitsPerByte); |
never@1445 | 432 | #endif |
never@1445 | 433 | SET_LOCALS_INT(*(jbyte *) result, 0); |
never@1445 | 434 | break; |
never@1445 | 435 | |
never@1445 | 436 | case T_SHORT: |
never@1445 | 437 | #ifndef VM_LITTLE_ENDIAN |
never@1445 | 438 | result[0] <<= (BitsPerWord - BitsPerShort); |
never@1445 | 439 | #endif |
never@1445 | 440 | SET_LOCALS_INT(*(jshort *) result, 0); |
never@1445 | 441 | break; |
never@1445 | 442 | |
never@1445 | 443 | case T_INT: |
never@1445 | 444 | #ifndef VM_LITTLE_ENDIAN |
never@1445 | 445 | result[0] <<= (BitsPerWord - BitsPerInt); |
never@1445 | 446 | #endif |
never@1445 | 447 | SET_LOCALS_INT(*(jint *) result, 0); |
never@1445 | 448 | break; |
never@1445 | 449 | |
never@1445 | 450 | case T_LONG: |
never@1445 | 451 | SET_LOCALS_LONG(*(jlong *) result, 0); |
never@1445 | 452 | break; |
never@1445 | 453 | |
never@1445 | 454 | case T_FLOAT: |
never@1445 | 455 | SET_LOCALS_FLOAT(*(jfloat *) result, 0); |
never@1445 | 456 | break; |
never@1445 | 457 | |
never@1445 | 458 | case T_DOUBLE: |
never@1445 | 459 | SET_LOCALS_DOUBLE(*(jdouble *) result, 0); |
never@1445 | 460 | break; |
never@1445 | 461 | |
never@1445 | 462 | case T_OBJECT: |
never@1445 | 463 | case T_ARRAY: |
never@1445 | 464 | SET_LOCALS_OBJECT(istate->oop_temp(), 0); |
never@1445 | 465 | break; |
never@1445 | 466 | |
never@1445 | 467 | default: |
never@1445 | 468 | ShouldNotReachHere(); |
never@1445 | 469 | } |
never@1445 | 470 | } |
twisti@1869 | 471 | |
twisti@1869 | 472 | // No deoptimized frames on the stack |
twisti@1869 | 473 | return 0; |
never@1445 | 474 | } |
never@1445 | 475 | |
coleenp@4037 | 476 | int CppInterpreter::accessor_entry(Method* method, intptr_t UNUSED, TRAPS) { |
never@1445 | 477 | JavaThread *thread = (JavaThread *) THREAD; |
never@1445 | 478 | ZeroStack *stack = thread->zero_stack(); |
never@1445 | 479 | intptr_t *locals = stack->sp(); |
never@1445 | 480 | |
never@1445 | 481 | // Drop into the slow path if we need a safepoint check |
never@1445 | 482 | if (SafepointSynchronize::do_call_back()) { |
twisti@1869 | 483 | return normal_entry(method, 0, THREAD); |
never@1445 | 484 | } |
never@1445 | 485 | |
never@1445 | 486 | // Load the object pointer and drop into the slow path |
never@1445 | 487 | // if we have a NullPointerException |
never@1445 | 488 | oop object = LOCALS_OBJECT(0); |
never@1445 | 489 | if (object == NULL) { |
twisti@1869 | 490 | return normal_entry(method, 0, THREAD); |
never@1445 | 491 | } |
never@1445 | 492 | |
never@1445 | 493 | // Read the field index from the bytecode, which looks like this: |
never@1445 | 494 | // 0: aload_0 |
never@1445 | 495 | // 1: getfield |
never@1445 | 496 | // 2: index |
never@1445 | 497 | // 3: index |
never@1445 | 498 | // 4: ireturn/areturn |
never@1445 | 499 | // NB this is not raw bytecode: index is in machine order |
never@1445 | 500 | u1 *code = method->code_base(); |
never@1445 | 501 | assert(code[0] == Bytecodes::_aload_0 && |
never@1445 | 502 | code[1] == Bytecodes::_getfield && |
never@1445 | 503 | (code[4] == Bytecodes::_ireturn || |
never@1445 | 504 | code[4] == Bytecodes::_areturn), "should do"); |
never@1445 | 505 | u2 index = Bytes::get_native_u2(&code[2]); |
never@1445 | 506 | |
never@1445 | 507 | // Get the entry from the constant pool cache, and drop into |
never@1445 | 508 | // the slow path if it has not been resolved |
coleenp@4037 | 509 | ConstantPoolCache* cache = method->constants()->cache(); |
never@1445 | 510 | ConstantPoolCacheEntry* entry = cache->entry_at(index); |
never@1445 | 511 | if (!entry->is_resolved(Bytecodes::_getfield)) { |
twisti@1869 | 512 | return normal_entry(method, 0, THREAD); |
never@1445 | 513 | } |
never@1445 | 514 | |
never@1445 | 515 | // Get the result and push it onto the stack |
never@1445 | 516 | switch (entry->flag_state()) { |
never@1445 | 517 | case ltos: |
never@1445 | 518 | case dtos: |
twisti@1869 | 519 | stack->overflow_check(1, CHECK_0); |
never@1445 | 520 | stack->alloc(wordSize); |
never@1445 | 521 | break; |
never@1445 | 522 | } |
never@1445 | 523 | if (entry->is_volatile()) { |
never@1445 | 524 | switch (entry->flag_state()) { |
never@1445 | 525 | case ctos: |
twisti@4237 | 526 | SET_LOCALS_INT(object->char_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 527 | break; |
never@1445 | 528 | |
never@1445 | 529 | case btos: |
twisti@4237 | 530 | SET_LOCALS_INT(object->byte_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 531 | break; |
never@1445 | 532 | |
never@1445 | 533 | case stos: |
twisti@4237 | 534 | SET_LOCALS_INT(object->short_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 535 | break; |
never@1445 | 536 | |
never@1445 | 537 | case itos: |
twisti@4237 | 538 | SET_LOCALS_INT(object->int_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 539 | break; |
never@1445 | 540 | |
never@1445 | 541 | case ltos: |
twisti@4237 | 542 | SET_LOCALS_LONG(object->long_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 543 | break; |
never@1445 | 544 | |
never@1445 | 545 | case ftos: |
twisti@4237 | 546 | SET_LOCALS_FLOAT(object->float_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 547 | break; |
never@1445 | 548 | |
never@1445 | 549 | case dtos: |
twisti@4237 | 550 | SET_LOCALS_DOUBLE(object->double_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 551 | break; |
never@1445 | 552 | |
never@1445 | 553 | case atos: |
twisti@4237 | 554 | SET_LOCALS_OBJECT(object->obj_field_acquire(entry->f2_as_index()), 0); |
never@1445 | 555 | break; |
never@1445 | 556 | |
never@1445 | 557 | default: |
never@1445 | 558 | ShouldNotReachHere(); |
never@1445 | 559 | } |
never@1445 | 560 | } |
never@1445 | 561 | else { |
never@1445 | 562 | switch (entry->flag_state()) { |
never@1445 | 563 | case ctos: |
twisti@4237 | 564 | SET_LOCALS_INT(object->char_field(entry->f2_as_index()), 0); |
never@1445 | 565 | break; |
never@1445 | 566 | |
never@1445 | 567 | case btos: |
twisti@4237 | 568 | SET_LOCALS_INT(object->byte_field(entry->f2_as_index()), 0); |
never@1445 | 569 | break; |
never@1445 | 570 | |
never@1445 | 571 | case stos: |
twisti@4237 | 572 | SET_LOCALS_INT(object->short_field(entry->f2_as_index()), 0); |
never@1445 | 573 | break; |
never@1445 | 574 | |
never@1445 | 575 | case itos: |
twisti@4237 | 576 | SET_LOCALS_INT(object->int_field(entry->f2_as_index()), 0); |
never@1445 | 577 | break; |
never@1445 | 578 | |
never@1445 | 579 | case ltos: |
twisti@4237 | 580 | SET_LOCALS_LONG(object->long_field(entry->f2_as_index()), 0); |
never@1445 | 581 | break; |
never@1445 | 582 | |
never@1445 | 583 | case ftos: |
twisti@4237 | 584 | SET_LOCALS_FLOAT(object->float_field(entry->f2_as_index()), 0); |
never@1445 | 585 | break; |
never@1445 | 586 | |
never@1445 | 587 | case dtos: |
twisti@4237 | 588 | SET_LOCALS_DOUBLE(object->double_field(entry->f2_as_index()), 0); |
never@1445 | 589 | break; |
never@1445 | 590 | |
never@1445 | 591 | case atos: |
twisti@4237 | 592 | SET_LOCALS_OBJECT(object->obj_field(entry->f2_as_index()), 0); |
never@1445 | 593 | break; |
never@1445 | 594 | |
never@1445 | 595 | default: |
never@1445 | 596 | ShouldNotReachHere(); |
never@1445 | 597 | } |
never@1445 | 598 | } |
twisti@1869 | 599 | |
twisti@1869 | 600 | // No deoptimized frames on the stack |
twisti@1869 | 601 | return 0; |
never@1445 | 602 | } |
never@1445 | 603 | |
coleenp@4037 | 604 | int CppInterpreter::empty_entry(Method* method, intptr_t UNUSED, TRAPS) { |
never@1445 | 605 | JavaThread *thread = (JavaThread *) THREAD; |
never@1445 | 606 | ZeroStack *stack = thread->zero_stack(); |
never@1445 | 607 | |
never@1445 | 608 | // Drop into the slow path if we need a safepoint check |
never@1445 | 609 | if (SafepointSynchronize::do_call_back()) { |
twisti@1869 | 610 | return normal_entry(method, 0, THREAD); |
never@1445 | 611 | } |
never@1445 | 612 | |
never@1445 | 613 | // Pop our parameters |
never@1445 | 614 | stack->set_sp(stack->sp() + method->size_of_parameters()); |
twisti@1869 | 615 | |
twisti@1869 | 616 | // No deoptimized frames on the stack |
twisti@1869 | 617 | return 0; |
never@1445 | 618 | } |
never@1445 | 619 | |
twisti@2762 | 620 | // The new slots will be inserted before slot insert_before. |
twisti@2762 | 621 | // Slots < insert_before will have the same slot number after the insert. |
twisti@2762 | 622 | // Slots >= insert_before will become old_slot + num_slots. |
twisti@2762 | 623 | void CppInterpreter::insert_vmslots(int insert_before, int num_slots, TRAPS) { |
twisti@2762 | 624 | JavaThread *thread = (JavaThread *) THREAD; |
twisti@2762 | 625 | ZeroStack *stack = thread->zero_stack(); |
twisti@2762 | 626 | |
twisti@2762 | 627 | // Allocate the space |
twisti@2762 | 628 | stack->overflow_check(num_slots, CHECK); |
twisti@2762 | 629 | stack->alloc(num_slots * wordSize); |
twisti@2762 | 630 | intptr_t *vmslots = stack->sp(); |
twisti@2762 | 631 | |
twisti@2762 | 632 | // Shuffle everything up |
twisti@2762 | 633 | for (int i = 0; i < insert_before; i++) |
twisti@2762 | 634 | SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i + num_slots), i); |
twisti@2762 | 635 | } |
twisti@2762 | 636 | |
twisti@2762 | 637 | void CppInterpreter::remove_vmslots(int first_slot, int num_slots, TRAPS) { |
twisti@2762 | 638 | JavaThread *thread = (JavaThread *) THREAD; |
twisti@2762 | 639 | ZeroStack *stack = thread->zero_stack(); |
twisti@2762 | 640 | intptr_t *vmslots = stack->sp(); |
twisti@2762 | 641 | |
twisti@2762 | 642 | // Move everything down |
twisti@2762 | 643 | for (int i = first_slot - 1; i >= 0; i--) |
twisti@2762 | 644 | SET_VMSLOTS_SLOT(VMSLOTS_SLOT(i), i + num_slots); |
twisti@2762 | 645 | |
twisti@2762 | 646 | // Deallocate the space |
twisti@2762 | 647 | stack->set_sp(stack->sp() + num_slots); |
twisti@2762 | 648 | } |
twisti@2762 | 649 | |
twisti@2762 | 650 | BasicType CppInterpreter::result_type_of_handle(oop method_handle) { |
twisti@2762 | 651 | oop method_type = java_lang_invoke_MethodHandle::type(method_handle); |
twisti@2762 | 652 | oop return_type = java_lang_invoke_MethodType::rtype(method_type); |
coleenp@4037 | 653 | return java_lang_Class::as_BasicType(return_type, (Klass* *) NULL); |
twisti@2762 | 654 | } |
twisti@2762 | 655 | |
twisti@2762 | 656 | intptr_t* CppInterpreter::calculate_unwind_sp(ZeroStack* stack, |
twisti@2762 | 657 | oop method_handle) { |
twisti@2762 | 658 | oop method_type = java_lang_invoke_MethodHandle::type(method_handle); |
twisti@3969 | 659 | int argument_slots = java_lang_invoke_MethodType::ptype_slot_count(method_type); |
twisti@2762 | 660 | |
twisti@2762 | 661 | return stack->sp() + argument_slots; |
twisti@2762 | 662 | } |
twisti@2762 | 663 | |
twisti@2762 | 664 | IRT_ENTRY(void, CppInterpreter::throw_exception(JavaThread* thread, |
twisti@2762 | 665 | Symbol* name, |
twisti@2762 | 666 | char* message)) |
twisti@2762 | 667 | THROW_MSG(name, message); |
twisti@2762 | 668 | IRT_END |
twisti@2762 | 669 | |
coleenp@4037 | 670 | InterpreterFrame *InterpreterFrame::build(Method* const method, TRAPS) { |
twisti@1814 | 671 | JavaThread *thread = (JavaThread *) THREAD; |
twisti@1814 | 672 | ZeroStack *stack = thread->zero_stack(); |
twisti@1814 | 673 | |
twisti@1814 | 674 | // Calculate the size of the frame we'll build, including |
twisti@1814 | 675 | // any adjustments to the caller's frame that we'll make. |
twisti@1814 | 676 | int extra_locals = 0; |
twisti@1814 | 677 | int monitor_words = 0; |
twisti@1814 | 678 | int stack_words = 0; |
twisti@1814 | 679 | |
twisti@1814 | 680 | if (!method->is_native()) { |
twisti@1814 | 681 | extra_locals = method->max_locals() - method->size_of_parameters(); |
twisti@1814 | 682 | stack_words = method->max_stack(); |
never@1445 | 683 | } |
twisti@1814 | 684 | if (method->is_synchronized()) { |
twisti@1814 | 685 | monitor_words = frame::interpreter_frame_monitor_size(); |
twisti@1814 | 686 | } |
twisti@1814 | 687 | stack->overflow_check( |
twisti@1814 | 688 | extra_locals + header_words + monitor_words + stack_words, CHECK_NULL); |
never@1445 | 689 | |
twisti@1814 | 690 | // Adjust the caller's stack frame to accomodate any additional |
twisti@1814 | 691 | // local variables we have contiguously with our parameters. |
twisti@1814 | 692 | for (int i = 0; i < extra_locals; i++) |
twisti@1814 | 693 | stack->push(0); |
never@1445 | 694 | |
never@1445 | 695 | intptr_t *locals; |
never@1445 | 696 | if (method->is_native()) |
never@1445 | 697 | locals = stack->sp() + (method->size_of_parameters() - 1); |
never@1445 | 698 | else |
never@1445 | 699 | locals = stack->sp() + (method->max_locals() - 1); |
never@1445 | 700 | |
never@1445 | 701 | stack->push(0); // next_frame, filled in later |
never@1445 | 702 | intptr_t *fp = stack->sp(); |
never@1445 | 703 | assert(fp - stack->sp() == next_frame_off, "should be"); |
never@1445 | 704 | |
never@1445 | 705 | stack->push(INTERPRETER_FRAME); |
never@1445 | 706 | assert(fp - stack->sp() == frame_type_off, "should be"); |
never@1445 | 707 | |
never@1445 | 708 | interpreterState istate = |
never@1445 | 709 | (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); |
never@1445 | 710 | assert(fp - stack->sp() == istate_off, "should be"); |
never@1445 | 711 | |
never@1445 | 712 | istate->set_locals(locals); |
never@1445 | 713 | istate->set_method(method); |
never@1445 | 714 | istate->set_self_link(istate); |
never@1445 | 715 | istate->set_prev_link(NULL); |
never@1445 | 716 | istate->set_thread(thread); |
never@1445 | 717 | istate->set_bcp(method->is_native() ? NULL : method->code_base()); |
never@1445 | 718 | istate->set_constants(method->constants()->cache()); |
never@1445 | 719 | istate->set_msg(BytecodeInterpreter::method_entry); |
never@1445 | 720 | istate->set_oop_temp(NULL); |
never@1445 | 721 | istate->set_mdx(NULL); |
never@1445 | 722 | istate->set_callee(NULL); |
never@1445 | 723 | |
never@1445 | 724 | istate->set_monitor_base((BasicObjectLock *) stack->sp()); |
never@1445 | 725 | if (method->is_synchronized()) { |
never@1445 | 726 | BasicObjectLock *monitor = |
never@1445 | 727 | (BasicObjectLock *) stack->alloc(monitor_words * wordSize); |
never@1445 | 728 | oop object; |
never@1445 | 729 | if (method->is_static()) |
never@2658 | 730 | object = method->constants()->pool_holder()->java_mirror(); |
never@1445 | 731 | else |
never@1445 | 732 | object = (oop) locals[0]; |
never@1445 | 733 | monitor->set_obj(object); |
never@1445 | 734 | } |
never@1445 | 735 | |
never@1445 | 736 | istate->set_stack_base(stack->sp()); |
never@1445 | 737 | istate->set_stack(stack->sp() - 1); |
never@1445 | 738 | if (stack_words) |
never@1445 | 739 | stack->alloc(stack_words * wordSize); |
never@1445 | 740 | istate->set_stack_limit(stack->sp() - 1); |
never@1445 | 741 | |
never@1445 | 742 | return (InterpreterFrame *) fp; |
never@1445 | 743 | } |
never@1445 | 744 | |
never@1445 | 745 | int AbstractInterpreter::BasicType_as_index(BasicType type) { |
never@1445 | 746 | int i = 0; |
never@1445 | 747 | switch (type) { |
never@1445 | 748 | case T_BOOLEAN: i = 0; break; |
never@1445 | 749 | case T_CHAR : i = 1; break; |
never@1445 | 750 | case T_BYTE : i = 2; break; |
never@1445 | 751 | case T_SHORT : i = 3; break; |
never@1445 | 752 | case T_INT : i = 4; break; |
never@1445 | 753 | case T_LONG : i = 5; break; |
never@1445 | 754 | case T_VOID : i = 6; break; |
never@1445 | 755 | case T_FLOAT : i = 7; break; |
never@1445 | 756 | case T_DOUBLE : i = 8; break; |
never@1445 | 757 | case T_OBJECT : i = 9; break; |
never@1445 | 758 | case T_ARRAY : i = 9; break; |
never@1445 | 759 | default : ShouldNotReachHere(); |
never@1445 | 760 | } |
never@1445 | 761 | assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, |
never@1445 | 762 | "index out of bounds"); |
never@1445 | 763 | return i; |
never@1445 | 764 | } |
never@1445 | 765 | |
coleenp@4037 | 766 | BasicType CppInterpreter::result_type_of(Method* method) { |
kvn@1691 | 767 | BasicType t; |
kvn@1691 | 768 | switch (method->result_index()) { |
kvn@1691 | 769 | case 0 : t = T_BOOLEAN; break; |
kvn@1691 | 770 | case 1 : t = T_CHAR; break; |
kvn@1691 | 771 | case 2 : t = T_BYTE; break; |
kvn@1691 | 772 | case 3 : t = T_SHORT; break; |
kvn@1691 | 773 | case 4 : t = T_INT; break; |
kvn@1691 | 774 | case 5 : t = T_LONG; break; |
kvn@1691 | 775 | case 6 : t = T_VOID; break; |
kvn@1691 | 776 | case 7 : t = T_FLOAT; break; |
kvn@1691 | 777 | case 8 : t = T_DOUBLE; break; |
kvn@1691 | 778 | case 9 : t = T_OBJECT; break; |
kvn@1691 | 779 | default: ShouldNotReachHere(); |
kvn@1691 | 780 | } |
kvn@1691 | 781 | assert(AbstractInterpreter::BasicType_as_index(t) == method->result_index(), |
kvn@1691 | 782 | "out of step with AbstractInterpreter::BasicType_as_index"); |
kvn@1691 | 783 | return t; |
kvn@1691 | 784 | } |
kvn@1691 | 785 | |
never@1445 | 786 | address InterpreterGenerator::generate_empty_entry() { |
never@1445 | 787 | if (!UseFastEmptyMethods) |
never@1445 | 788 | return NULL; |
never@1445 | 789 | |
never@1445 | 790 | return generate_entry((address) CppInterpreter::empty_entry); |
never@1445 | 791 | } |
never@1445 | 792 | |
never@1445 | 793 | address InterpreterGenerator::generate_accessor_entry() { |
never@1445 | 794 | if (!UseFastAccessorMethods) |
never@1445 | 795 | return NULL; |
never@1445 | 796 | |
never@1445 | 797 | return generate_entry((address) CppInterpreter::accessor_entry); |
never@1445 | 798 | } |
never@1445 | 799 | |
johnc@2781 | 800 | address InterpreterGenerator::generate_Reference_get_entry(void) { |
jprovino@4542 | 801 | #if INCLUDE_ALL_GCS |
johnc@2781 | 802 | if (UseG1GC) { |
johnc@2781 | 803 | // We need to generate have a routine that generates code to: |
johnc@2781 | 804 | // * load the value in the referent field |
johnc@2781 | 805 | // * passes that value to the pre-barrier. |
johnc@2781 | 806 | // |
johnc@2781 | 807 | // In the case of G1 this will record the value of the |
johnc@2781 | 808 | // referent in an SATB buffer if marking is active. |
johnc@2781 | 809 | // This will cause concurrent marking to mark the referent |
johnc@2781 | 810 | // field as live. |
johnc@2781 | 811 | Unimplemented(); |
johnc@2781 | 812 | } |
jprovino@4542 | 813 | #endif // INCLUDE_ALL_GCS |
johnc@2781 | 814 | |
johnc@2781 | 815 | // If G1 is not enabled then attempt to go through the accessor entry point |
johnc@2781 | 816 | // Reference.get is an accessor |
johnc@2781 | 817 | return generate_accessor_entry(); |
johnc@2781 | 818 | } |
johnc@2781 | 819 | |
never@1445 | 820 | address InterpreterGenerator::generate_native_entry(bool synchronized) { |
never@1445 | 821 | assert(synchronized == false, "should be"); |
never@1445 | 822 | |
never@1445 | 823 | return generate_entry((address) CppInterpreter::native_entry); |
never@1445 | 824 | } |
never@1445 | 825 | |
never@1445 | 826 | address InterpreterGenerator::generate_normal_entry(bool synchronized) { |
never@1445 | 827 | assert(synchronized == false, "should be"); |
never@1445 | 828 | |
never@1445 | 829 | return generate_entry((address) CppInterpreter::normal_entry); |
never@1445 | 830 | } |
never@1445 | 831 | |
never@1445 | 832 | address AbstractInterpreterGenerator::generate_method_entry( |
never@1445 | 833 | AbstractInterpreter::MethodKind kind) { |
never@1445 | 834 | address entry_point = NULL; |
never@1445 | 835 | |
never@1445 | 836 | switch (kind) { |
never@1445 | 837 | case Interpreter::zerolocals: |
never@1445 | 838 | case Interpreter::zerolocals_synchronized: |
never@1445 | 839 | break; |
never@1445 | 840 | |
never@1445 | 841 | case Interpreter::native: |
never@1445 | 842 | entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); |
never@1445 | 843 | break; |
never@1445 | 844 | |
never@1445 | 845 | case Interpreter::native_synchronized: |
never@1445 | 846 | entry_point = ((InterpreterGenerator*) this)->generate_native_entry(false); |
never@1445 | 847 | break; |
never@1445 | 848 | |
never@1445 | 849 | case Interpreter::empty: |
never@1445 | 850 | entry_point = ((InterpreterGenerator*) this)->generate_empty_entry(); |
never@1445 | 851 | break; |
never@1445 | 852 | |
never@1445 | 853 | case Interpreter::accessor: |
never@1445 | 854 | entry_point = ((InterpreterGenerator*) this)->generate_accessor_entry(); |
never@1445 | 855 | break; |
never@1445 | 856 | |
never@1445 | 857 | case Interpreter::abstract: |
never@1445 | 858 | entry_point = ((InterpreterGenerator*) this)->generate_abstract_entry(); |
never@1445 | 859 | break; |
never@1445 | 860 | |
never@1445 | 861 | case Interpreter::java_lang_math_sin: |
never@1445 | 862 | case Interpreter::java_lang_math_cos: |
never@1445 | 863 | case Interpreter::java_lang_math_tan: |
never@1445 | 864 | case Interpreter::java_lang_math_abs: |
never@1445 | 865 | case Interpreter::java_lang_math_log: |
never@1445 | 866 | case Interpreter::java_lang_math_log10: |
never@1445 | 867 | case Interpreter::java_lang_math_sqrt: |
twisti@4237 | 868 | case Interpreter::java_lang_math_pow: |
twisti@4237 | 869 | case Interpreter::java_lang_math_exp: |
never@1445 | 870 | entry_point = ((InterpreterGenerator*) this)->generate_math_entry(kind); |
never@1445 | 871 | break; |
never@1445 | 872 | |
johnc@2781 | 873 | case Interpreter::java_lang_ref_reference_get: |
johnc@2781 | 874 | entry_point = ((InterpreterGenerator*)this)->generate_Reference_get_entry(); |
johnc@2781 | 875 | break; |
johnc@2781 | 876 | |
never@1445 | 877 | default: |
never@1445 | 878 | ShouldNotReachHere(); |
never@1445 | 879 | } |
never@1445 | 880 | |
never@1445 | 881 | if (entry_point == NULL) |
never@1445 | 882 | entry_point = ((InterpreterGenerator*) this)->generate_normal_entry(false); |
never@1445 | 883 | |
never@1445 | 884 | return entry_point; |
never@1445 | 885 | } |
never@1445 | 886 | |
never@1445 | 887 | InterpreterGenerator::InterpreterGenerator(StubQueue* code) |
never@1445 | 888 | : CppInterpreterGenerator(code) { |
never@1445 | 889 | generate_all(); |
never@1445 | 890 | } |
never@1445 | 891 | |
never@1445 | 892 | // Deoptimization helpers |
never@1445 | 893 | |
twisti@1814 | 894 | InterpreterFrame *InterpreterFrame::build(int size, TRAPS) { |
twisti@1814 | 895 | ZeroStack *stack = ((JavaThread *) THREAD)->zero_stack(); |
twisti@1814 | 896 | |
never@1445 | 897 | int size_in_words = size >> LogBytesPerWord; |
never@1445 | 898 | assert(size_in_words * wordSize == size, "unaligned"); |
never@1445 | 899 | assert(size_in_words >= header_words, "too small"); |
twisti@1814 | 900 | stack->overflow_check(size_in_words, CHECK_NULL); |
never@1445 | 901 | |
never@1445 | 902 | stack->push(0); // next_frame, filled in later |
never@1445 | 903 | intptr_t *fp = stack->sp(); |
never@1445 | 904 | assert(fp - stack->sp() == next_frame_off, "should be"); |
never@1445 | 905 | |
never@1445 | 906 | stack->push(INTERPRETER_FRAME); |
never@1445 | 907 | assert(fp - stack->sp() == frame_type_off, "should be"); |
never@1445 | 908 | |
never@1445 | 909 | interpreterState istate = |
never@1445 | 910 | (interpreterState) stack->alloc(sizeof(BytecodeInterpreter)); |
never@1445 | 911 | assert(fp - stack->sp() == istate_off, "should be"); |
never@1445 | 912 | istate->set_self_link(NULL); // mark invalid |
never@1445 | 913 | |
never@1445 | 914 | stack->alloc((size_in_words - header_words) * wordSize); |
never@1445 | 915 | |
never@1445 | 916 | return (InterpreterFrame *) fp; |
never@1445 | 917 | } |
never@1445 | 918 | |
coleenp@4037 | 919 | int AbstractInterpreter::layout_activation(Method* method, |
never@1445 | 920 | int tempcount, |
never@1445 | 921 | int popframe_extra_args, |
never@1445 | 922 | int moncount, |
never@2901 | 923 | int caller_actual_parameters, |
never@1445 | 924 | int callee_param_count, |
never@1445 | 925 | int callee_locals, |
never@1445 | 926 | frame* caller, |
never@1445 | 927 | frame* interpreter_frame, |
roland@4727 | 928 | bool is_top_frame, |
roland@4727 | 929 | bool is_bottom_frame) { |
never@1445 | 930 | assert(popframe_extra_args == 0, "what to do?"); |
never@1445 | 931 | assert(!is_top_frame || (!callee_locals && !callee_param_count), |
twisti@1960 | 932 | "top frame should have no caller"); |
never@1445 | 933 | |
never@1445 | 934 | // This code must exactly match what InterpreterFrame::build |
never@1445 | 935 | // does (the full InterpreterFrame::build, that is, not the |
never@1445 | 936 | // one that creates empty frames for the deoptimizer). |
never@1445 | 937 | // |
never@1445 | 938 | // If interpreter_frame is not NULL then it will be filled in. |
never@1445 | 939 | // It's size is determined by a previous call to this method, |
never@1445 | 940 | // so it should be correct. |
never@1445 | 941 | // |
never@1445 | 942 | // Note that tempcount is the current size of the expression |
never@1445 | 943 | // stack. For top most frames we will allocate a full sized |
never@1445 | 944 | // expression stack and not the trimmed version that non-top |
never@1445 | 945 | // frames have. |
never@1445 | 946 | |
never@1445 | 947 | int header_words = InterpreterFrame::header_words; |
never@1445 | 948 | int monitor_words = moncount * frame::interpreter_frame_monitor_size(); |
never@1445 | 949 | int stack_words = is_top_frame ? method->max_stack() : tempcount; |
never@1445 | 950 | int callee_extra_locals = callee_locals - callee_param_count; |
never@1445 | 951 | |
never@1445 | 952 | if (interpreter_frame) { |
twisti@1860 | 953 | intptr_t *locals = interpreter_frame->fp() + method->max_locals(); |
never@1445 | 954 | interpreterState istate = interpreter_frame->get_interpreterState(); |
never@1445 | 955 | intptr_t *monitor_base = (intptr_t*) istate; |
never@1445 | 956 | intptr_t *stack_base = monitor_base - monitor_words; |
never@1445 | 957 | intptr_t *stack = stack_base - tempcount - 1; |
never@1445 | 958 | |
never@1445 | 959 | BytecodeInterpreter::layout_interpreterState(istate, |
never@1445 | 960 | caller, |
never@1445 | 961 | NULL, |
never@1445 | 962 | method, |
never@1445 | 963 | locals, |
never@1445 | 964 | stack, |
never@1445 | 965 | stack_base, |
never@1445 | 966 | monitor_base, |
never@1445 | 967 | NULL, |
never@1445 | 968 | is_top_frame); |
never@1445 | 969 | } |
never@1445 | 970 | return header_words + monitor_words + stack_words + callee_extra_locals; |
never@1445 | 971 | } |
never@1445 | 972 | |
never@1445 | 973 | void BytecodeInterpreter::layout_interpreterState(interpreterState istate, |
never@1445 | 974 | frame* caller, |
never@1445 | 975 | frame* current, |
coleenp@4037 | 976 | Method* method, |
never@1445 | 977 | intptr_t* locals, |
never@1445 | 978 | intptr_t* stack, |
never@1445 | 979 | intptr_t* stack_base, |
never@1445 | 980 | intptr_t* monitor_base, |
never@1445 | 981 | intptr_t* frame_bottom, |
never@1445 | 982 | bool is_top_frame) { |
never@1445 | 983 | istate->set_locals(locals); |
never@1445 | 984 | istate->set_method(method); |
never@1445 | 985 | istate->set_self_link(istate); |
never@1445 | 986 | istate->set_prev_link(NULL); |
never@1445 | 987 | // thread will be set by a hacky repurposing of frame::patch_pc() |
never@1445 | 988 | // bcp will be set by vframeArrayElement::unpack_on_stack() |
never@1445 | 989 | istate->set_constants(method->constants()->cache()); |
never@1445 | 990 | istate->set_msg(BytecodeInterpreter::method_resume); |
never@1445 | 991 | istate->set_bcp_advance(0); |
never@1445 | 992 | istate->set_oop_temp(NULL); |
never@1445 | 993 | istate->set_mdx(NULL); |
never@1445 | 994 | if (caller->is_interpreted_frame()) { |
never@1445 | 995 | interpreterState prev = caller->get_interpreterState(); |
never@1445 | 996 | prev->set_callee(method); |
never@1445 | 997 | if (*prev->bcp() == Bytecodes::_invokeinterface) |
never@1445 | 998 | prev->set_bcp_advance(5); |
never@1445 | 999 | else |
never@1445 | 1000 | prev->set_bcp_advance(3); |
never@1445 | 1001 | } |
never@1445 | 1002 | istate->set_callee(NULL); |
never@1445 | 1003 | istate->set_monitor_base((BasicObjectLock *) monitor_base); |
never@1445 | 1004 | istate->set_stack_base(stack_base); |
never@1445 | 1005 | istate->set_stack(stack); |
never@1445 | 1006 | istate->set_stack_limit(stack_base - method->max_stack() - 1); |
never@1445 | 1007 | } |
never@1445 | 1008 | |
never@1445 | 1009 | address CppInterpreter::return_entry(TosState state, int length) { |
never@1445 | 1010 | ShouldNotCallThis(); |
twisti@5545 | 1011 | return NULL; |
never@1445 | 1012 | } |
never@1445 | 1013 | |
never@1445 | 1014 | address CppInterpreter::deopt_entry(TosState state, int length) { |
never@1445 | 1015 | return NULL; |
never@1445 | 1016 | } |
never@1445 | 1017 | |
never@1445 | 1018 | // Helper for (runtime) stack overflow checks |
never@1445 | 1019 | |
coleenp@4037 | 1020 | int AbstractInterpreter::size_top_interpreter_activation(Method* method) { |
never@1445 | 1021 | return 0; |
never@1445 | 1022 | } |
never@1445 | 1023 | |
never@1445 | 1024 | // Helper for figuring out if frames are interpreter frames |
never@1445 | 1025 | |
never@1445 | 1026 | bool CppInterpreter::contains(address pc) { |
never@1445 | 1027 | return false; // make frame::print_value_on work |
never@1445 | 1028 | } |
never@1445 | 1029 | |
never@1445 | 1030 | // Result handlers and convertors |
never@1445 | 1031 | |
never@1445 | 1032 | address CppInterpreterGenerator::generate_result_handler_for( |
never@1445 | 1033 | BasicType type) { |
never@1445 | 1034 | assembler()->advance(1); |
never@1445 | 1035 | return ShouldNotCallThisStub(); |
never@1445 | 1036 | } |
never@1445 | 1037 | |
never@1445 | 1038 | address CppInterpreterGenerator::generate_tosca_to_stack_converter( |
never@1445 | 1039 | BasicType type) { |
never@1445 | 1040 | assembler()->advance(1); |
never@1445 | 1041 | return ShouldNotCallThisStub(); |
never@1445 | 1042 | } |
never@1445 | 1043 | |
never@1445 | 1044 | address CppInterpreterGenerator::generate_stack_to_stack_converter( |
never@1445 | 1045 | BasicType type) { |
never@1445 | 1046 | assembler()->advance(1); |
never@1445 | 1047 | return ShouldNotCallThisStub(); |
never@1445 | 1048 | } |
never@1445 | 1049 | |
never@1445 | 1050 | address CppInterpreterGenerator::generate_stack_to_native_abi_converter( |
never@1445 | 1051 | BasicType type) { |
never@1445 | 1052 | assembler()->advance(1); |
never@1445 | 1053 | return ShouldNotCallThisStub(); |
never@1445 | 1054 | } |
never@1445 | 1055 | |
never@1445 | 1056 | #endif // CC_INTERP |