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1 /*
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331
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2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_location.cpp.incl"
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27
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28 void Location::print_on(outputStream* st) const {
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331
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29 if(type() == invalid) {
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30 // product of Location::invalid_loc() or Location::Location().
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31 switch (where()) {
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32 case on_stack: st->print("empty"); break;
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33 case in_register: st->print("invalid"); break;
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34 }
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35 return;
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36 }
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37 switch (where()) {
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38 case on_stack: st->print("stack[%d]", stack_offset()); break;
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39 case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
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40 default: st->print("Wrong location where %d", where());
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41 }
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42 switch (type()) {
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43 case normal: break;
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44 case oop: st->print(",oop"); break;
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45 case narrowoop: st->print(",narrowoop"); break;
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46 case int_in_long: st->print(",int"); break;
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47 case lng: st->print(",long"); break;
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48 case float_in_dbl: st->print(",float"); break;
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49 case dbl: st->print(",double"); break;
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50 case addr: st->print(",address"); break;
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51 default: st->print("Wrong location type %d", type());
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52 }
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53 }
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54
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55
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56 Location::Location(DebugInfoReadStream* stream) {
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57 _value = (juint) stream->read_int();
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58 }
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59
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60
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61 void Location::write_on(DebugInfoWriteStream* stream) {
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62 stream->write_int(_value);
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63 }
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64
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65
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66 // Valid argument to Location::new_stk_loc()?
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67 bool Location::legal_offset_in_bytes(int offset_in_bytes) {
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68 if ((offset_in_bytes % BytesPerInt) != 0) return false;
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69 return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
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70 }
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