73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "code/debugInfo.hpp"
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#include "code/location.hpp"
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#include "runtime/handles.inline.hpp"
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void Location::print_on(outputStream* st) const {
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if(type() == invalid) {
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// product of Location::invalid_loc() or Location::Location().
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switch (where()) {
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case on_stack: st->print("empty"); break;
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case in_register: st->print("invalid"); break;
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}
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return;
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}
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switch (where()) {
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case on_stack: st->print("stack[%d]", stack_offset()); break;
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case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
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default: st->print("Wrong location where %d", where());
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}
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switch (type()) {
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case normal: break;
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case oop: st->print(",oop"); break;
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case narrowoop: st->print(",narrowoop"); break;
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case int_in_long: st->print(",int"); break;
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case lng: st->print(",long"); break;
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case float_in_dbl: st->print(",float"); break;
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case dbl: st->print(",double"); break;
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case addr: st->print(",address"); break;
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default: st->print("Wrong location type %d", type());
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}
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}
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Location::Location(DebugInfoReadStream* stream) {
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_value = (juint) stream->read_int();
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}
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void Location::write_on(DebugInfoWriteStream* stream) {
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stream->write_int(_value);
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}
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// Valid argument to Location::new_stk_loc()?
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bool Location::legal_offset_in_bytes(int offset_in_bytes) {
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if ((offset_in_bytes % BytesPerInt) != 0) return false;
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return (juint)(offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
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}
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