1 /*
2 * Copyright (c) 2003, 2016, 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 *
84 thisKlass.name() != vmSymbols::java_lang_Object()) {
85 _locals[0] = VerificationType::uninitialized_this_type();
86 _flags |= FLAG_THIS_UNINIT;
87 } else {
88 _locals[0] = thisKlass;
89 }
90 }
91
92 // local num may be greater than size of parameters because long/double occupies two slots
93 while(!ss.at_return_type()) {
94 init_local_num += _verifier->change_sig_to_verificationType(
95 &ss, &_locals[init_local_num],
96 CHECK_VERIFY_(verifier(), VerificationType::bogus_type()));
97 ss.next();
98 }
99 _locals_size = init_local_num;
100
101 switch (ss.type()) {
102 case T_OBJECT:
103 case T_ARRAY:
104 {
105 Symbol* sig = ss.as_symbol(CHECK_(VerificationType::bogus_type()));
106 // Create another symbol to save as signature stream unreferences
107 // this symbol.
108 Symbol* sig_copy =
109 verifier()->create_temporary_symbol(sig, 0, sig->utf8_length(),
110 CHECK_(VerificationType::bogus_type()));
111 assert(sig_copy == sig, "symbols don't match");
112 return VerificationType::reference_type(sig_copy);
113 }
114 case T_INT: return VerificationType::integer_type();
115 case T_BYTE: return VerificationType::byte_type();
116 case T_CHAR: return VerificationType::char_type();
117 case T_SHORT: return VerificationType::short_type();
118 case T_BOOLEAN: return VerificationType::boolean_type();
119 case T_FLOAT: return VerificationType::float_type();
120 case T_DOUBLE: return VerificationType::double_type();
121 case T_LONG: return VerificationType::long_type();
122 case T_VOID: return VerificationType::bogus_type();
123 default:
124 ShouldNotReachHere();
125 }
126 return VerificationType::bogus_type();
127 }
128
129 void StackMapFrame::copy_locals(const StackMapFrame* src) {
130 int32_t len = src->locals_size() < _locals_size ?
131 src->locals_size() : _locals_size;
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1 /*
2 * Copyright (c) 2003, 2017, 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 *
84 thisKlass.name() != vmSymbols::java_lang_Object()) {
85 _locals[0] = VerificationType::uninitialized_this_type();
86 _flags |= FLAG_THIS_UNINIT;
87 } else {
88 _locals[0] = thisKlass;
89 }
90 }
91
92 // local num may be greater than size of parameters because long/double occupies two slots
93 while(!ss.at_return_type()) {
94 init_local_num += _verifier->change_sig_to_verificationType(
95 &ss, &_locals[init_local_num],
96 CHECK_VERIFY_(verifier(), VerificationType::bogus_type()));
97 ss.next();
98 }
99 _locals_size = init_local_num;
100
101 switch (ss.type()) {
102 case T_OBJECT:
103 case T_ARRAY:
104 case T_VALUETYPE:
105 {
106 Symbol* sig = ss.as_symbol(CHECK_(VerificationType::bogus_type()));
107 // Create another symbol to save as signature stream unreferences
108 // this symbol.
109 Symbol* sig_copy =
110 verifier()->create_temporary_symbol(sig, 0, sig->utf8_length(),
111 CHECK_(VerificationType::bogus_type()));
112 assert(sig_copy == sig, "symbols don't match");
113 if (ss.type() == T_VALUETYPE) {
114 return VerificationType::valuetype_type(sig_copy);
115 }
116 return VerificationType::reference_type(sig_copy);
117 }
118 case T_INT: return VerificationType::integer_type();
119 case T_BYTE: return VerificationType::byte_type();
120 case T_CHAR: return VerificationType::char_type();
121 case T_SHORT: return VerificationType::short_type();
122 case T_BOOLEAN: return VerificationType::boolean_type();
123 case T_FLOAT: return VerificationType::float_type();
124 case T_DOUBLE: return VerificationType::double_type();
125 case T_LONG: return VerificationType::long_type();
126 case T_VOID: return VerificationType::bogus_type();
127 default:
128 ShouldNotReachHere();
129 }
130 return VerificationType::bogus_type();
131 }
132
133 void StackMapFrame::copy_locals(const StackMapFrame* src) {
134 int32_t len = src->locals_size() < _locals_size ?
135 src->locals_size() : _locals_size;
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