1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/vm/code/location.cpp Wed Apr 27 01:25:04 2016 +0800 1.3 @@ -0,0 +1,71 @@ 1.4 +/* 1.5 + * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + * 1.26 + */ 1.27 + 1.28 +#include "precompiled.hpp" 1.29 +#include "code/debugInfo.hpp" 1.30 +#include "code/location.hpp" 1.31 + 1.32 +void Location::print_on(outputStream* st) const { 1.33 + if(type() == invalid) { 1.34 + // product of Location::invalid_loc() or Location::Location(). 1.35 + switch (where()) { 1.36 + case on_stack: st->print("empty"); break; 1.37 + case in_register: st->print("invalid"); break; 1.38 + } 1.39 + return; 1.40 + } 1.41 + switch (where()) { 1.42 + case on_stack: st->print("stack[%d]", stack_offset()); break; 1.43 + case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break; 1.44 + default: st->print("Wrong location where %d", where()); 1.45 + } 1.46 + switch (type()) { 1.47 + case normal: break; 1.48 + case oop: st->print(",oop"); break; 1.49 + case narrowoop: st->print(",narrowoop"); break; 1.50 + case int_in_long: st->print(",int"); break; 1.51 + case lng: st->print(",long"); break; 1.52 + case float_in_dbl: st->print(",float"); break; 1.53 + case dbl: st->print(",double"); break; 1.54 + case addr: st->print(",address"); break; 1.55 + default: st->print("Wrong location type %d", type()); 1.56 + } 1.57 +} 1.58 + 1.59 + 1.60 +Location::Location(DebugInfoReadStream* stream) { 1.61 + _value = (juint) stream->read_int(); 1.62 +} 1.63 + 1.64 + 1.65 +void Location::write_on(DebugInfoWriteStream* stream) { 1.66 + stream->write_int(_value); 1.67 +} 1.68 + 1.69 + 1.70 +// Valid argument to Location::new_stk_loc()? 1.71 +bool Location::legal_offset_in_bytes(int offset_in_bytes) { 1.72 + if ((offset_in_bytes % BytesPerInt) != 0) return false; 1.73 + return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT); 1.74 +}