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 */ 24 25#include "precompiled.hpp" 26#include "code/debugInfo.hpp" 27#include "code/location.hpp" 28 29void 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} 55 56 57Location::Location(DebugInfoReadStream* stream) { 58 _value = (juint) stream->read_int(); 59} 60 61 62void Location::write_on(DebugInfoWriteStream* stream) { 63 stream->write_int(_value); 64} 65 66 67// Valid argument to Location::new_stk_loc()? 68bool 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} 72