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src/share/vm/runtime/rframe.cpp@9f4457a14b58 (annotated)

src/share/vm/runtime/rframe.cpp

Wed, 09 Apr 2008 15:10:22 -0700

author

rasbold

date

Wed, 09 Apr 2008 15:10:22 -0700

changeset 544

9f4457a14b58

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

Merge

duke@435	1	/*
duke@435	2	* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26
duke@435	27	#include "incls/_rframe.cpp.incl"
duke@435	28
duke@435	29	static RFrame*const noCaller = (RFrame*) 0x1; // no caller (i.e., initial frame)
duke@435	30	static RFrame*const noCallerYet = (RFrame*) 0x0; // caller not yet computed
duke@435	31
duke@435	32	RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) :
duke@435	33	_fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) {
duke@435	34	_caller = (RFrame*)noCallerYet;
duke@435	35	_invocations = 0;
duke@435	36	_distance = 0;
duke@435	37	}
duke@435	38
duke@435	39	void RFrame::set_distance(int d) {
duke@435	40	assert(is_compiled() || d >= 0, "should be positive");
duke@435	41	_distance = d;
duke@435	42	}
duke@435	43
duke@435	44	InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, RFrame*const callee)
duke@435	45	: RFrame(fr, thread, callee) {
duke@435	46	RegisterMap map(thread, false);
duke@435	47	_vf = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
duke@435	48	_method = methodHandle(thread, _vf->method());
duke@435	49	assert( _vf->is_interpreted_frame(), "must be interpreted");
duke@435	50	init();
duke@435	51	}
duke@435	52
duke@435	53	InterpretedRFrame::InterpretedRFrame(frame fr, JavaThread* thread, methodHandle m)
duke@435	54	: RFrame(fr, thread, NULL) {
duke@435	55	RegisterMap map(thread, false);
duke@435	56	_vf = javaVFrame::cast(vframe::new_vframe(&_fr, &map, thread));
duke@435	57	_method = m;
duke@435	58
duke@435	59	assert( _vf->is_interpreted_frame(), "must be interpreted");
duke@435	60	init();
duke@435	61	}
duke@435	62
duke@435	63	CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread, RFrame*const callee)
duke@435	64	: RFrame(fr, thread, callee) {
duke@435	65	init();
duke@435	66	}
duke@435	67
duke@435	68	CompiledRFrame::CompiledRFrame(frame fr, JavaThread* thread)
duke@435	69	: RFrame(fr, thread, NULL) {
duke@435	70	init();
duke@435	71	}
duke@435	72
duke@435	73	DeoptimizedRFrame::DeoptimizedRFrame(frame fr, JavaThread* thread, RFrame*const callee)
duke@435	74	: InterpretedRFrame(fr, thread, callee) {}
duke@435	75
duke@435	76	RFrame* RFrame::new_RFrame(frame fr, JavaThread* thread, RFrame*const callee) {
duke@435	77	RFrame* rf;
duke@435	78	int dist = callee ? callee->distance() : -1;
duke@435	79	if (fr.is_interpreted_frame()) {
duke@435	80	rf = new InterpretedRFrame(fr, thread, callee);
duke@435	81	dist++;
duke@435	82	} else if (fr.is_compiled_frame()) {
duke@435	83	// Even deopted frames look compiled because the deopt
duke@435	84	// is invisible until it happens.
duke@435	85	rf = new CompiledRFrame(fr, thread, callee);
duke@435	86	} else {
duke@435	87	assert(false, "Unhandled frame type");
duke@435	88	}
duke@435	89	rf->set_distance(dist);
duke@435	90	rf->init();
duke@435	91	return rf;
duke@435	92	}
duke@435	93
duke@435	94	RFrame* RFrame::caller() {
duke@435	95	if (_caller != noCallerYet) return (_caller == noCaller) ? NULL : _caller; // already computed caller
duke@435	96
duke@435	97	// caller not yet computed; do it now
duke@435	98	if (_fr.is_first_java_frame()) {
duke@435	99	_caller = (RFrame*)noCaller;
duke@435	100	return NULL;
duke@435	101	}
duke@435	102
duke@435	103	RegisterMap map(_thread, false);
duke@435	104	frame sender = _fr.real_sender(&map);
duke@435	105	if (sender.is_java_frame()) {
duke@435	106	_caller = new_RFrame(sender, thread(), this);
duke@435	107	return _caller;
duke@435	108	}
duke@435	109
duke@435	110	// Real caller is not java related
duke@435	111	_caller = (RFrame*)noCaller;
duke@435	112	return NULL;
duke@435	113	}
duke@435	114
duke@435	115	int InterpretedRFrame::cost() const {
duke@435	116	return _method->code_size(); // fix this
duke@435	117	//return _method->estimated_inline_cost(_receiverKlass);
duke@435	118	}
duke@435	119
duke@435	120	int CompiledRFrame::cost() const {
duke@435	121	nmethod* nm = top_method()->code();
duke@435	122	if (nm != NULL) {
duke@435	123	return nm->code_size();
duke@435	124	} else {
duke@435	125	return top_method()->code_size();
duke@435	126	}
duke@435	127	}
duke@435	128
duke@435	129	void CompiledRFrame::init() {
duke@435	130	RegisterMap map(thread(), false);
duke@435	131	vframe* vf = vframe::new_vframe(&_fr, &map, thread());
duke@435	132	assert(vf->is_compiled_frame(), "must be compiled");
duke@435	133	_nm = compiledVFrame::cast(vf)->code();
duke@435	134	vf = vf->top();
duke@435	135	_vf = javaVFrame::cast(vf);
duke@435	136	_method = methodHandle(thread(), CodeCache::find_nmethod(_fr.pc())->method());
duke@435	137	assert(_method(), "should have found a method");
duke@435	138	#ifndef PRODUCT
duke@435	139	_invocations = _method->compiled_invocation_count();
duke@435	140	#endif
duke@435	141	}
duke@435	142
duke@435	143	void InterpretedRFrame::init() {
duke@435	144	_invocations = _method->invocation_count() + _method->backedge_count();
duke@435	145	}
duke@435	146
duke@435	147	void RFrame::print(const char* kind) {
duke@435	148	#ifndef PRODUCT
duke@435	149	#ifdef COMPILER2
duke@435	150	int cnt = top_method()->interpreter_invocation_count();
duke@435	151	#else
duke@435	152	int cnt = top_method()->invocation_count();
duke@435	153	#endif
duke@435	154	tty->print("%3d %s ", _num, is_interpreted() ? "I" : "C");
duke@435	155	top_method()->print_short_name(tty);
duke@435	156	tty->print_cr(": inv=%5d(%d) cst=%4d", _invocations, cnt, cost());
duke@435	157	#endif
duke@435	158	}
duke@435	159
duke@435	160	void CompiledRFrame::print() {
duke@435	161	RFrame::print("comp");
duke@435	162	}
duke@435	163
duke@435	164	void InterpretedRFrame::print() {
duke@435	165	RFrame::print("int.");
duke@435	166	}
duke@435	167
duke@435	168	void DeoptimizedRFrame::print() {
duke@435	169	RFrame::print("deopt.");
duke@435	170	}