Mercurial > hg > truffle
comparison src/share/vm/code/location.cpp @ 0:a61af66fc99e jdk7-b24
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| author | duke |
|---|---|
| date | Sat, 01 Dec 2007 00:00:00 +0000 |
| parents | |
| children | cecd8eb4e0ca |
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| -1:000000000000 | 0:a61af66fc99e |
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| 1 /* | |
| 2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_location.cpp.incl" | |
| 27 | |
| 28 void Location::print_on(outputStream* st) const { | |
| 29 if(type() == invalid && !legal_offset_in_bytes(offset() * BytesPerInt)) { | |
| 30 // product of Location::invalid_loc() or Location::Location(). | |
| 31 switch (where()) { | |
| 32 case on_stack: st->print("empty"); break; | |
| 33 case in_register: st->print("invalid"); break; | |
| 34 } | |
| 35 return; | |
| 36 } | |
| 37 switch (where()) { | |
| 38 case on_stack: st->print("stack[%d]", stack_offset()); break; | |
| 39 case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break; | |
| 40 default: st->print("Wrong location where %d", where()); | |
| 41 } | |
| 42 switch (type()) { | |
| 43 case normal: break; | |
| 44 case oop: st->print(",oop"); break; | |
| 45 case int_in_long: st->print(",int"); break; | |
| 46 case lng: st->print(",long"); break; | |
| 47 case float_in_dbl: st->print(",float"); break; | |
| 48 case dbl: st->print(",double"); break; | |
| 49 case addr: st->print(",address"); break; | |
| 50 default: st->print("Wrong location type %d", type()); | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 | |
| 55 Location::Location(DebugInfoReadStream* stream) { | |
| 56 _value = (uint16_t) stream->read_int(); | |
| 57 } | |
| 58 | |
| 59 | |
| 60 void Location::write_on(DebugInfoWriteStream* stream) { | |
| 61 stream->write_int(_value & 0x0000FFFF); | |
| 62 } | |
| 63 | |
| 64 | |
| 65 // Valid argument to Location::new_stk_loc()? | |
| 66 bool Location::legal_offset_in_bytes(int offset_in_bytes) { | |
| 67 if ((offset_in_bytes % BytesPerInt) != 0) return false; | |
| 68 return (offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT); | |
| 69 } |