Mon, 10 Jun 2013 11:30:51 +0200
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>
1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "code/debugInfo.hpp"
27 #include "code/location.hpp"
29 void Location::print_on(outputStream* st) const {
30 if(type() == invalid) {
31 // product of Location::invalid_loc() or Location::Location().
32 switch (where()) {
33 case on_stack: st->print("empty"); break;
34 case in_register: st->print("invalid"); break;
35 }
36 return;
37 }
38 switch (where()) {
39 case on_stack: st->print("stack[%d]", stack_offset()); break;
40 case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
41 default: st->print("Wrong location where %d", where());
42 }
43 switch (type()) {
44 case normal: break;
45 case oop: st->print(",oop"); break;
46 case narrowoop: st->print(",narrowoop"); break;
47 case int_in_long: st->print(",int"); break;
48 case lng: st->print(",long"); break;
49 case float_in_dbl: st->print(",float"); break;
50 case dbl: st->print(",double"); break;
51 case addr: st->print(",address"); break;
52 default: st->print("Wrong location type %d", type());
53 }
54 }
57 Location::Location(DebugInfoReadStream* stream) {
58 _value = (juint) stream->read_int();
59 }
62 void Location::write_on(DebugInfoWriteStream* stream) {
63 stream->write_int(_value);
64 }
67 // Valid argument to Location::new_stk_loc()?
68 bool Location::legal_offset_in_bytes(int offset_in_bytes) {
69 if ((offset_in_bytes % BytesPerInt) != 0) return false;
70 return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
71 }