| /* |
| * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "interpreter/interpreter.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "oops/symbol.hpp" |
| #include "runtime/frame.inline.hpp" |
| #include "runtime/rframe.hpp" |
| #include "runtime/vframe.hpp" |
| #include "runtime/vframe_hp.hpp" |
| |
| |
| static RFrame*const noCaller = (RFrame*) 0x1; // no caller (i.e., initial frame) |
| static RFrame*const noCallerYet = (RFrame*) 0x0; // caller not yet computed |
| |
| RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) : |
| _fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) { |
| _caller = (RFrame*)noCallerYet; |
| _invocations = 0; |
| _distance = 0; |
| } |
| |
| void RFrame::set_distance(int d) { |
| assert(is_compiled() || d >= 0, "should be positive"); |
| _distance = d; |
| } |
| |
| InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, RFrame*const callee) |
| : RFrame(fr, thread, callee) { |
| RegisterMap map(thread, false); |
| _vf = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread)); |
| _method = methodHandle(thread, _vf->method()); |
| assert( _vf->is_interpreted_frame(), "must be interpreted"); |
| init(); |
| } |
| |
| InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, methodHandle m) |
| : RFrame(fr, thread, NULL) { |
| RegisterMap map(thread, false); |
| _vf = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread)); |
| _method = m; |
| |
| assert( _vf->is_interpreted_frame(), "must be interpreted"); |
| init(); |
| } |
| |
| CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread, RFrame*const callee) |
| : RFrame(fr, thread, callee) { |
| init(); |
| } |
| |
| CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread) |
| : RFrame(fr, thread, NULL) { |
| init(); |
| } |
| |
| DeoptimizedRFrame::DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const callee) |
| : InterpretedRFrame(fr, thread, callee) {} |
| |
| RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const callee) { |
| RFrame* rf; |
| int dist = callee ? callee->distance() : -1; |
| if (fr.is_interpreted_frame()) { |
| rf = new InterpretedRFrame(fr, thread, callee); |
| dist++; |
| } else if (fr.is_compiled_frame()) { |
| // Even deopted frames look compiled because the deopt |
| // is invisible until it happens. |
| rf = new CompiledRFrame(fr, thread, callee); |
| } else { |
| assert(false, "Unhandled frame type"); |
| } |
| rf->set_distance(dist); |
| rf->init(); |
| return rf; |
| } |
| |
| RFrame* RFrame::caller() { |
| if (_caller != noCallerYet) return (_caller == noCaller) ? NULL : _caller; // already computed caller |
| |
| // caller not yet computed; do it now |
| if (_fr.is_first_java_frame()) { |
| _caller = (RFrame*)noCaller; |
| return NULL; |
| } |
| |
| RegisterMap map(_thread, false); |
| frame sender = _fr.real_sender(&map); |
| if (sender.is_java_frame()) { |
| _caller = new_RFrame(sender, thread(), this); |
| return _caller; |
| } |
| |
| // Real caller is not java related |
| _caller = (RFrame*)noCaller; |
| return NULL; |
| } |
| |
| int InterpretedRFrame::cost() const { |
| return _method->code_size(); // fix this |
| //return _method->estimated_inline_cost(_receiverKlass); |
| } |
| |
| int CompiledRFrame::cost() const { |
| nmethod* nm = top_method()->code(); |
| if (nm != NULL) { |
| return nm->insts_size(); |
| } else { |
| return top_method()->code_size(); |
| } |
| } |
| |
| void CompiledRFrame::init() { |
| RegisterMap map(thread(), false); |
| vframe* vf = vframe::new_vframe(&_fr, &map, thread()); |
| assert(vf->is_compiled_frame(), "must be compiled"); |
| _nm = compiledVFrame::cast(vf)->code(); |
| vf = vf->top(); |
| _vf = javaVFrame::cast(vf); |
| _method = methodHandle(thread(), CodeCache::find_nmethod(_fr.pc())->method()); |
| assert(_method(), "should have found a method"); |
| #ifndef PRODUCT |
| _invocations = _method->compiled_invocation_count(); |
| #endif |
| } |
| |
| void InterpretedRFrame::init() { |
| _invocations = _method->invocation_count() + _method->backedge_count(); |
| } |
| |
| void RFrame::print(const char* kind) { |
| #ifndef PRODUCT |
| #ifdef COMPILER2 |
| int cnt = top_method()->interpreter_invocation_count(); |
| #else |
| int cnt = top_method()->invocation_count(); |
| #endif |
| tty->print("%3d %s ", _num, is_interpreted() ? "I" : "C"); |
| top_method()->print_short_name(tty); |
| tty->print_cr(": inv=%5d(%d) cst=%4d", _invocations, cnt, cost()); |
| #endif |
| } |
| |
| void CompiledRFrame::print() { |
| RFrame::print("comp"); |
| } |
| |
| void InterpretedRFrame::print() { |
| RFrame::print("int."); |
| } |
| |
| void DeoptimizedRFrame::print() { |
| RFrame::print("deopt."); |
| } |