1 /*
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
138 // Set locals and stack types to bogus
139 inline void reset() {
140 int32_t i;
141 for (i = 0; i < _max_locals; i++) {
142 _locals[i] = VerificationType::bogus_type();
143 }
144 for (i = 0; i < _max_stack; i++) {
145 _stack[i] = VerificationType::bogus_type();
146 }
147 }
148
149 // Return a StackMapFrame with the same local variable array and empty stack.
150 // Stack array is allocate with unused one element.
151 StackMapFrame* frame_in_exception_handler(u1 flags);
152
153 // Set local variable type array based on m's signature.
154 VerificationType set_locals_from_arg(
155 const methodHandle m, VerificationType thisKlass, TRAPS);
156
157 // Search local variable type array and stack type array.
158 // Return true if an uninitialized object is found.
159 bool has_new_object() const;
160
161 // Search local variable type array and stack type array.
162 // Set every element with type of old_object to new_object.
163 void initialize_object(
164 VerificationType old_object, VerificationType new_object);
165
166 // Copy local variable type array in src into this local variable type array.
167 void copy_locals(const StackMapFrame* src);
168
169 // Copy stack type array in src into this stack type array.
170 void copy_stack(const StackMapFrame* src);
171
172 // Return true if this stack map frame is assignable to target.
173 bool is_assignable_to(
174 const StackMapFrame* target, bool is_exception_handler,
175 ErrorContext* ctx, TRAPS) const;
176
177 inline void set_mark() {
178 #ifdef DEBUG
179 // Put bogus type to indicate it's no longer valid.
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1 /*
2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
138 // Set locals and stack types to bogus
139 inline void reset() {
140 int32_t i;
141 for (i = 0; i < _max_locals; i++) {
142 _locals[i] = VerificationType::bogus_type();
143 }
144 for (i = 0; i < _max_stack; i++) {
145 _stack[i] = VerificationType::bogus_type();
146 }
147 }
148
149 // Return a StackMapFrame with the same local variable array and empty stack.
150 // Stack array is allocate with unused one element.
151 StackMapFrame* frame_in_exception_handler(u1 flags);
152
153 // Set local variable type array based on m's signature.
154 VerificationType set_locals_from_arg(
155 const methodHandle m, VerificationType thisKlass, TRAPS);
156
157 // Search local variable type array and stack type array.
158 // Return true if an uninitialized object is found that is
159 // not equal to the corresponding object on the target frame.
160 bool has_unique_new_object(const StackMapFrame *target_frame) const;
161
162 // Search local variable type array and stack type array.
163 // Set every element with type of old_object to new_object.
164 void initialize_object(
165 VerificationType old_object, VerificationType new_object);
166
167 // Copy local variable type array in src into this local variable type array.
168 void copy_locals(const StackMapFrame* src);
169
170 // Copy stack type array in src into this stack type array.
171 void copy_stack(const StackMapFrame* src);
172
173 // Return true if this stack map frame is assignable to target.
174 bool is_assignable_to(
175 const StackMapFrame* target, bool is_exception_handler,
176 ErrorContext* ctx, TRAPS) const;
177
178 inline void set_mark() {
179 #ifdef DEBUG
180 // Put bogus type to indicate it's no longer valid.
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