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comparison src/share/vm/interpreter/templateInterpreter.cpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 1d7922586cf6
children a3e2f723f2a5
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6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
508 if (tos_out == ilgl) tos_out = t->tos_out(); 508 if (tos_out == ilgl) tos_out = t->tos_out();
509 // compute bytecode size 509 // compute bytecode size
510 assert(step > 0, "just checkin'"); 510 assert(step > 0, "just checkin'");
511 // setup stuff for dispatching next bytecode 511 // setup stuff for dispatching next bytecode
512 if (ProfileInterpreter && VerifyDataPointer 512 if (ProfileInterpreter && VerifyDataPointer
513 && methodDataOopDesc::bytecode_has_profile(t->bytecode())) { 513 && MethodData::bytecode_has_profile(t->bytecode())) {
514 __ verify_method_data_pointer(); 514 __ verify_method_data_pointer();
515 } 515 }
516 __ dispatch_prolog(tos_out, step); 516 __ dispatch_prolog(tos_out, step);
517 } 517 }
518 // generate template 518 // generate template
586 586
587 //------------------------------------------------------------------------------------------------------------------------ 587 //------------------------------------------------------------------------------------------------------------------------
588 // Deoptimization support 588 // Deoptimization support
589 589
590 // If deoptimization happens, this function returns the point of next bytecode to continue execution 590 // If deoptimization happens, this function returns the point of next bytecode to continue execution
591 address TemplateInterpreter::deopt_continue_after_entry(methodOop method, address bcp, int callee_parameters, bool is_top_frame) { 591 address TemplateInterpreter::deopt_continue_after_entry(Method* method, address bcp, int callee_parameters, bool is_top_frame) {
592 return AbstractInterpreter::deopt_continue_after_entry(method, bcp, callee_parameters, is_top_frame); 592 return AbstractInterpreter::deopt_continue_after_entry(method, bcp, callee_parameters, is_top_frame);
593 } 593 }
594 594
595 // If deoptimization happens, this function returns the point where the interpreter reexecutes 595 // If deoptimization happens, this function returns the point where the interpreter reexecutes
596 // the bytecode. 596 // the bytecode.
597 // Note: Bytecodes::_athrow (C1 only) and Bytecodes::_return are the special cases 597 // Note: Bytecodes::_athrow (C1 only) and Bytecodes::_return are the special cases
598 // that do not return "Interpreter::deopt_entry(vtos, 0)" 598 // that do not return "Interpreter::deopt_entry(vtos, 0)"
599 address TemplateInterpreter::deopt_reexecute_entry(methodOop method, address bcp) { 599 address TemplateInterpreter::deopt_reexecute_entry(Method* method, address bcp) {
600 assert(method->contains(bcp), "just checkin'"); 600 assert(method->contains(bcp), "just checkin'");
601 Bytecodes::Code code = Bytecodes::java_code_at(method, bcp); 601 Bytecodes::Code code = Bytecodes::java_code_at(method, bcp);
602 if (code == Bytecodes::_return) { 602 if (code == Bytecodes::_return) {
603 // This is used for deopt during registration of finalizers 603 // This is used for deopt during registration of finalizers
604 // during Object.<init>. We simply need to resume execution at 604 // during Object.<init>. We simply need to resume execution at