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src/share/vm/oops/oop.cpp@126ea7725993 (annotated)

src/share/vm/oops/oop.cpp

Tue, 03 Aug 2010 08:13:38 -0400

author

bobv

date

Tue, 03 Aug 2010 08:13:38 -0400

changeset 2036

126ea7725993

parent 1907

c18cbe5936b8

child 2314

f95d63e2154a

permissions

-rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

duke@435	1	/*
trims@1907	2	* Copyright (c) 1997, 2009, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_oop.cpp.incl"
duke@435	27
duke@435	28	bool always_do_update_barrier = false;
duke@435	29
duke@435	30	BarrierSet* oopDesc::_bs = NULL;
duke@435	31
duke@435	32	void oopDesc::print_on(outputStream* st) const {
duke@435	33	if (this == NULL) {
duke@435	34	st->print_cr("NULL");
duke@435	35	} else {
duke@435	36	blueprint()->oop_print_on(oop(this), st);
duke@435	37	}
duke@435	38	}
duke@435	39
duke@435	40	void oopDesc::print_address_on(outputStream* st) const {
duke@435	41	if (PrintOopAddress) {
jrose@1100	42	st->print("{"INTPTR_FORMAT"}", this);
duke@435	43	}
duke@435	44	}
duke@435	45
duke@435	46	void oopDesc::print() { print_on(tty); }
duke@435	47
duke@435	48	void oopDesc::print_address() { print_address_on(tty); }
duke@435	49
duke@435	50	char* oopDesc::print_string() {
jrose@1590	51	stringStream st;
jrose@1590	52	print_on(&st);
jrose@1590	53	return st.as_string();
jrose@1590	54	}
jrose@1590	55
jrose@1590	56	void oopDesc::print_value() {
jrose@1590	57	print_value_on(tty);
duke@435	58	}
duke@435	59
duke@435	60	char* oopDesc::print_value_string() {
jrose@1590	61	char buf[100];
jrose@1590	62	stringStream st(buf, sizeof(buf));
jrose@1590	63	print_value_on(&st);
jrose@1590	64	return st.as_string();
duke@435	65	}
duke@435	66
jrose@1590	67	void oopDesc::print_value_on(outputStream* st) const {
jrose@1590	68	oop obj = oop(this);
jrose@1590	69	if (this == NULL) {
jrose@1590	70	st->print("NULL");
jrose@1590	71	} else if (java_lang_String::is_instance(obj)) {
jrose@1590	72	java_lang_String::print(obj, st);
jrose@1590	73	if (PrintOopAddress) print_address_on(st);
jrose@1590	74	#ifdef ASSERT
jrose@1590	75	} else if (!Universe::heap()->is_in(obj) || !Universe::heap()->is_in(klass())) {
jrose@1590	76	st->print("### BAD OOP %p ###", (address)obj);
jrose@1590	77	#endif //ASSERT
jrose@1590	78	} else {
jrose@1590	79	blueprint()->oop_print_value_on(obj, st);
jrose@1590	80	}
jrose@1590	81	}
jrose@1590	82
duke@435	83
duke@435	84	void oopDesc::verify_on(outputStream* st) {
duke@435	85	if (this != NULL) {
duke@435	86	blueprint()->oop_verify_on(this, st);
duke@435	87	}
duke@435	88	}
duke@435	89
duke@435	90
duke@435	91	void oopDesc::verify() {
duke@435	92	verify_on(tty);
duke@435	93	}
duke@435	94
duke@435	95
coleenp@548	96	// XXX verify_old_oop doesn't do anything (should we remove?)
duke@435	97	void oopDesc::verify_old_oop(oop* p, bool allow_dirty) {
duke@435	98	blueprint()->oop_verify_old_oop(this, p, allow_dirty);
duke@435	99	}
duke@435	100
coleenp@548	101	void oopDesc::verify_old_oop(narrowOop* p, bool allow_dirty) {
coleenp@548	102	blueprint()->oop_verify_old_oop(this, p, allow_dirty);
coleenp@548	103	}
duke@435	104
duke@435	105	bool oopDesc::partially_loaded() {
duke@435	106	return blueprint()->oop_partially_loaded(this);
duke@435	107	}
duke@435	108
duke@435	109
duke@435	110	void oopDesc::set_partially_loaded() {
duke@435	111	blueprint()->oop_set_partially_loaded(this);
duke@435	112	}
duke@435	113
duke@435	114
duke@435	115	intptr_t oopDesc::slow_identity_hash() {
duke@435	116	// slow case; we have to acquire the micro lock in order to locate the header
duke@435	117	ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY
duke@435	118	HandleMark hm;
duke@435	119	Handle object((oop)this);
duke@435	120	assert(!is_shared_readonly(), "using identity hash on readonly object?");
duke@435	121	return ObjectSynchronizer::identity_hash_value_for(object);
duke@435	122	}
duke@435	123
duke@435	124	VerifyOopClosure VerifyOopClosure::verify_oop;
coleenp@548	125
coleenp@548	126	void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); }
coleenp@548	127	void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }