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src/share/vm/ci/ciExceptionHandler.cpp@f90c822e73f8 (annotated)

src/share/vm/ci/ciExceptionHandler.cpp

Wed, 27 Apr 2016 01:25:04 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:25:04 +0800

changeset 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1999, 2010, 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 "ci/ciExceptionHandler.hpp"
aoqi@0	27	#include "ci/ciUtilities.hpp"
aoqi@0	28
aoqi@0	29	// ciExceptionHandler
aoqi@0	30	//
aoqi@0	31	// This class represents an exception handler for a method.
aoqi@0	32
aoqi@0	33	// ------------------------------------------------------------------
aoqi@0	34	// ciExceptionHandler::catch_klass
aoqi@0	35	//
aoqi@0	36	// Get the exception klass that this handler catches.
aoqi@0	37	ciInstanceKlass* ciExceptionHandler::catch_klass() {
aoqi@0	38	VM_ENTRY_MARK;
aoqi@0	39	assert(!is_catch_all(), "bad index");
aoqi@0	40	if (_catch_klass == NULL) {
aoqi@0	41	bool will_link;
aoqi@0	42	assert(_loading_klass->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
aoqi@0	43	constantPoolHandle cpool(_loading_klass->get_instanceKlass()->constants());
aoqi@0	44	ciKlass* k = CURRENT_ENV->get_klass_by_index(cpool,
aoqi@0	45	_catch_klass_index,
aoqi@0	46	will_link,
aoqi@0	47	_loading_klass);
aoqi@0	48	if (!will_link && k->is_loaded()) {
aoqi@0	49	GUARDED_VM_ENTRY(
aoqi@0	50	k = CURRENT_ENV->get_unloaded_klass(_loading_klass, k->name());
aoqi@0	51	)
aoqi@0	52	}
aoqi@0	53	_catch_klass = k->as_instance_klass();
aoqi@0	54	}
aoqi@0	55	return _catch_klass;
aoqi@0	56	}
aoqi@0	57
aoqi@0	58	// ------------------------------------------------------------------
aoqi@0	59	// ciExceptionHandler::print()
aoqi@0	60	void ciExceptionHandler::print() {
aoqi@0	61	tty->print("<ciExceptionHandler start=%d limit=%d"
aoqi@0	62	" handler_bci=%d ex_klass_index=%d",
aoqi@0	63	start(), limit(), handler_bci(), catch_klass_index());
aoqi@0	64	if (_catch_klass != NULL) {
aoqi@0	65	tty->print(" ex_klass=");
aoqi@0	66	_catch_klass->print();
aoqi@0	67	}
aoqi@0	68	tty->print(">");
aoqi@0	69	}