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src/share/vm/code/location.cpp@b1f619d38249 (annotated)

src/share/vm/code/location.cpp

Tue, 05 Jan 2010 16:12:26 -0800

author

never

date

Tue, 05 Jan 2010 16:12:26 -0800

changeset 1576

b1f619d38249

parent 766

cecd8eb4e0ca

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6914002: unsigned compare problem after 5057818
Reviewed-by: kvn, twisti

duke@435	1	/*
kvn@766	2	* Copyright 1997-2008 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	#include "incls/_location.cpp.incl"
duke@435	27
duke@435	28	void Location::print_on(outputStream* st) const {
kvn@766	29	if(type() == invalid) {
duke@435	30	// product of Location::invalid_loc() or Location::Location().
duke@435	31	switch (where()) {
duke@435	32	case on_stack: st->print("empty"); break;
duke@435	33	case in_register: st->print("invalid"); break;
duke@435	34	}
duke@435	35	return;
duke@435	36	}
duke@435	37	switch (where()) {
duke@435	38	case on_stack: st->print("stack[%d]", stack_offset()); break;
duke@435	39	case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
duke@435	40	default: st->print("Wrong location where %d", where());
duke@435	41	}
duke@435	42	switch (type()) {
duke@435	43	case normal: break;
duke@435	44	case oop: st->print(",oop"); break;
kvn@766	45	case narrowoop: st->print(",narrowoop"); break;
duke@435	46	case int_in_long: st->print(",int"); break;
duke@435	47	case lng: st->print(",long"); break;
duke@435	48	case float_in_dbl: st->print(",float"); break;
duke@435	49	case dbl: st->print(",double"); break;
duke@435	50	case addr: st->print(",address"); break;
duke@435	51	default: st->print("Wrong location type %d", type());
duke@435	52	}
duke@435	53	}
duke@435	54
duke@435	55
duke@435	56	Location::Location(DebugInfoReadStream* stream) {
kvn@766	57	_value = (juint) stream->read_int();
duke@435	58	}
duke@435	59
duke@435	60
duke@435	61	void Location::write_on(DebugInfoWriteStream* stream) {
kvn@766	62	stream->write_int(_value);
duke@435	63	}
duke@435	64
duke@435	65
duke@435	66	// Valid argument to Location::new_stk_loc()?
duke@435	67	bool Location::legal_offset_in_bytes(int offset_in_bytes) {
duke@435	68	if ((offset_in_bytes % BytesPerInt) != 0) return false;
kvn@766	69	return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
duke@435	70	}