duke@435: /*
stefank@2314:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "code/debugInfo.hpp"
stefank@2314: #include "code/location.hpp"
duke@435: 
duke@435: void Location::print_on(outputStream* st) const {
kvn@766:   if(type() == invalid) {
duke@435:     // product of Location::invalid_loc() or Location::Location().
duke@435:     switch (where()) {
duke@435:     case on_stack:     st->print("empty");    break;
duke@435:     case in_register:  st->print("invalid");  break;
duke@435:     }
duke@435:     return;
duke@435:   }
duke@435:   switch (where()) {
duke@435:   case on_stack:    st->print("stack[%d]", stack_offset());    break;
duke@435:   case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
duke@435:   default:          st->print("Wrong location where %d", where());
duke@435:   }
duke@435:   switch (type()) {
duke@435:   case normal:                                 break;
duke@435:   case oop:          st->print(",oop");        break;
kvn@766:   case narrowoop:    st->print(",narrowoop");  break;
duke@435:   case int_in_long:  st->print(",int");        break;
duke@435:   case lng:          st->print(",long");       break;
duke@435:   case float_in_dbl: st->print(",float");      break;
duke@435:   case dbl:          st->print(",double");     break;
duke@435:   case addr:         st->print(",address");    break;
duke@435:   default:           st->print("Wrong location type %d", type());
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: Location::Location(DebugInfoReadStream* stream) {
kvn@766:   _value = (juint) stream->read_int();
duke@435: }
duke@435: 
duke@435: 
duke@435: void Location::write_on(DebugInfoWriteStream* stream) {
kvn@766:   stream->write_int(_value);
duke@435: }
duke@435: 
duke@435: 
duke@435: // Valid argument to Location::new_stk_loc()?
duke@435: bool Location::legal_offset_in_bytes(int offset_in_bytes) {
duke@435:   if ((offset_in_bytes % BytesPerInt) != 0)  return false;
kvn@766:   return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
duke@435: }