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src/share/vm/code/location.cpp@f2110083203d (annotated)

src/share/vm/code/location.cpp

Mon, 10 Jun 2013 11:30:51 +0200

author

sla

date

Mon, 10 Jun 2013 11:30:51 +0200

changeset 5237

f2110083203d

parent 2314

f95d63e2154a

child 6876

710a3c8b516e

permissions

-rw-r--r--

8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1997, 2010, 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
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "code/debugInfo.hpp"
stefank@2314	27	#include "code/location.hpp"
duke@435	28
duke@435	29	void Location::print_on(outputStream* st) const {
kvn@766	30	if(type() == invalid) {
duke@435	31	// product of Location::invalid_loc() or Location::Location().
duke@435	32	switch (where()) {
duke@435	33	case on_stack: st->print("empty"); break;
duke@435	34	case in_register: st->print("invalid"); break;
duke@435	35	}
duke@435	36	return;
duke@435	37	}
duke@435	38	switch (where()) {
duke@435	39	case on_stack: st->print("stack[%d]", stack_offset()); break;
duke@435	40	case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
duke@435	41	default: st->print("Wrong location where %d", where());
duke@435	42	}
duke@435	43	switch (type()) {
duke@435	44	case normal: break;
duke@435	45	case oop: st->print(",oop"); break;
kvn@766	46	case narrowoop: st->print(",narrowoop"); break;
duke@435	47	case int_in_long: st->print(",int"); break;
duke@435	48	case lng: st->print(",long"); break;
duke@435	49	case float_in_dbl: st->print(",float"); break;
duke@435	50	case dbl: st->print(",double"); break;
duke@435	51	case addr: st->print(",address"); break;
duke@435	52	default: st->print("Wrong location type %d", type());
duke@435	53	}
duke@435	54	}
duke@435	55
duke@435	56
duke@435	57	Location::Location(DebugInfoReadStream* stream) {
kvn@766	58	_value = (juint) stream->read_int();
duke@435	59	}
duke@435	60
duke@435	61
duke@435	62	void Location::write_on(DebugInfoWriteStream* stream) {
kvn@766	63	stream->write_int(_value);
duke@435	64	}
duke@435	65
duke@435	66
duke@435	67	// Valid argument to Location::new_stk_loc()?
duke@435	68	bool Location::legal_offset_in_bytes(int offset_in_bytes) {
duke@435	69	if ((offset_in_bytes % BytesPerInt) != 0) return false;
kvn@766	70	return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
duke@435	71	}