1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/ci/ciExceptionHandler.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,69 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 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 "ci/ciExceptionHandler.hpp"
1.30 +#include "ci/ciUtilities.hpp"
1.31 +
1.32 +// ciExceptionHandler
1.33 +//
1.34 +// This class represents an exception handler for a method.
1.35 +
1.36 +// ------------------------------------------------------------------
1.37 +// ciExceptionHandler::catch_klass
1.38 +//
1.39 +// Get the exception klass that this handler catches.
1.40 +ciInstanceKlass* ciExceptionHandler::catch_klass() {
1.41 + VM_ENTRY_MARK;
1.42 + assert(!is_catch_all(), "bad index");
1.43 + if (_catch_klass == NULL) {
1.44 + bool will_link;
1.45 + assert(_loading_klass->get_instanceKlass()->is_linked(), "must be linked before accessing constant pool");
1.46 + constantPoolHandle cpool(_loading_klass->get_instanceKlass()->constants());
1.47 + ciKlass* k = CURRENT_ENV->get_klass_by_index(cpool,
1.48 + _catch_klass_index,
1.49 + will_link,
1.50 + _loading_klass);
1.51 + if (!will_link && k->is_loaded()) {
1.52 + GUARDED_VM_ENTRY(
1.53 + k = CURRENT_ENV->get_unloaded_klass(_loading_klass, k->name());
1.54 + )
1.55 + }
1.56 + _catch_klass = k->as_instance_klass();
1.57 + }
1.58 + return _catch_klass;
1.59 +}
1.60 +
1.61 +// ------------------------------------------------------------------
1.62 +// ciExceptionHandler::print()
1.63 +void ciExceptionHandler::print() {
1.64 + tty->print("<ciExceptionHandler start=%d limit=%d"
1.65 + " handler_bci=%d ex_klass_index=%d",
1.66 + start(), limit(), handler_bci(), catch_klass_index());
1.67 + if (_catch_klass != NULL) {
1.68 + tty->print(" ex_klass=");
1.69 + _catch_klass->print();
1.70 + }
1.71 + tty->print(">");
1.72 +}
