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src/share/vm/code/pcDesc.cpp@710a3c8b516e (annotated)

src/share/vm/code/pcDesc.cpp

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 6680

78bbf4d43a14

parent 0

f90c822e73f8

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "code/debugInfoRec.hpp"
aoqi@0	27	#include "code/nmethod.hpp"
aoqi@0	28	#include "code/pcDesc.hpp"
aoqi@0	29	#include "code/scopeDesc.hpp"
aoqi@0	30	#include "memory/resourceArea.hpp"
aoqi@0	31
aoqi@0	32	PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
aoqi@0	33
aoqi@0	34	PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) {
aoqi@0	35	_pc_offset = pc_offset;
aoqi@0	36	_scope_decode_offset = scope_decode_offset;
aoqi@0	37	_obj_decode_offset = obj_decode_offset;
aoqi@0	38	_flags = 0;
aoqi@0	39	}
aoqi@0	40
aoqi@0	41	address PcDesc::real_pc(const nmethod* code) const {
aoqi@0	42	return code->code_begin() + pc_offset();
aoqi@0	43	}
aoqi@0	44
aoqi@0	45	void PcDesc::print(nmethod* code) {
aoqi@0	46	#ifndef PRODUCT
aoqi@0	47	ResourceMark rm;
aoqi@0	48	tty->print_cr("PcDesc(pc=0x%lx offset=%x bits=%x):", real_pc(code), pc_offset(), _flags);
aoqi@0	49
aoqi@0	50	if (scope_decode_offset() == DebugInformationRecorder::serialized_null) {
aoqi@0	51	return;
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	for (ScopeDesc* sd = code->scope_desc_at(real_pc(code));
aoqi@0	55	sd != NULL;
aoqi@0	56	sd = sd->sender()) {
aoqi@0	57	tty->print(" ");
aoqi@0	58	sd->method()->print_short_name(tty);
aoqi@0	59	tty->print(" @%d", sd->bci());
aoqi@0	60	if (sd->should_reexecute())
aoqi@0	61	tty->print(" reexecute=true");
aoqi@0	62	tty->cr();
aoqi@0	63	}
aoqi@0	64	#endif
aoqi@0	65	}
aoqi@0	66
aoqi@0	67	bool PcDesc::verify(nmethod* code) {
aoqi@0	68	//Unimplemented();
aoqi@0	69	return true;
aoqi@0	70	}