Wed, 01 Jun 2011 23:25:20 -0700
7049415: Failure of resolution of sym.reference to the c.s.s. should be wrapped in BootstrapMethodError
Summary: Delegate invokedynamic linkage errors to MethodHandleNatives.raiseException.
Reviewed-by: never
1 /*
2 * Copyright (c) 2003, 2011, 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 *
23 */
25 #ifndef SHARE_VM_CLASSFILE_STACKMAPTABLE_HPP
26 #define SHARE_VM_CLASSFILE_STACKMAPTABLE_HPP
28 #include "classfile/stackMapFrame.hpp"
29 #include "memory/allocation.hpp"
30 #include "oops/constantPoolOop.hpp"
31 #include "oops/methodOop.hpp"
32 #include "utilities/globalDefinitions.hpp"
33 #ifdef TARGET_ARCH_x86
34 # include "bytes_x86.hpp"
35 #endif
36 #ifdef TARGET_ARCH_sparc
37 # include "bytes_sparc.hpp"
38 #endif
39 #ifdef TARGET_ARCH_zero
40 # include "bytes_zero.hpp"
41 #endif
42 #ifdef TARGET_ARCH_arm
43 # include "bytes_arm.hpp"
44 #endif
45 #ifdef TARGET_ARCH_ppc
46 # include "bytes_ppc.hpp"
47 #endif
49 class StackMapReader;
51 // StackMapTable class is the StackMap table used by type checker
52 class StackMapTable : public StackObj {
53 private:
54 // Logically, the _frame_count (as well as many fields in the StackFrame)
55 // should be a u2, but if we defined the variable as that type it will
56 // be difficult to detect/recover from overflow or underflow conditions.
57 // Widening the type and making it signed will help detect these.
58 int32_t _code_length;
59 int32_t _frame_count; // Stackmap frame count
60 StackMapFrame** _frame_array;
62 public:
63 StackMapTable(StackMapReader* reader, StackMapFrame* init_frame,
64 u2 max_locals, u2 max_stack,
65 char* code_data, int code_len, TRAPS);
67 inline int32_t get_frame_count() const { return _frame_count; }
68 inline int get_offset(int index) const {
69 return _frame_array[index]->offset();
70 }
72 // Match and/or update current_frame to the frame in stackmap table with
73 // specified offset. Return true if the two frames match.
74 bool match_stackmap(
75 StackMapFrame* current_frame, int32_t offset,
76 bool match, bool update, TRAPS) const;
77 // Match and/or update current_frame to the frame in stackmap table with
78 // specified offset and frame index. Return true if the two frames match.
79 bool match_stackmap(
80 StackMapFrame* current_frame, int32_t offset, int32_t frame_index,
81 bool match, bool update, TRAPS) const;
83 // Check jump instructions. Make sure there are no uninitialized
84 // instances on backward branch.
85 void check_jump_target(StackMapFrame* frame, int32_t target, TRAPS) const;
87 // The following methods are only used inside this class.
89 // Returns the frame array index where the frame with offset is stored.
90 int get_index_from_offset(int32_t offset) const;
92 // Make sure that there's no uninitialized object exist on backward branch.
93 void check_new_object(
94 const StackMapFrame* frame, int32_t target, TRAPS) const;
96 // Debugging
97 void print() const PRODUCT_RETURN;
98 };
100 class StackMapStream : StackObj {
101 private:
102 typeArrayHandle _data;
103 int _index;
104 public:
105 StackMapStream(typeArrayHandle ah)
106 : _data(ah), _index(0) {
107 }
108 u1 get_u1(TRAPS) {
109 if (_data == NULL || _index >= _data->length()) {
110 stackmap_format_error("access beyond the end of attribute", CHECK_0);
111 }
112 return _data->byte_at(_index++);
113 }
114 u2 get_u2(TRAPS) {
115 if (_data == NULL || _index >= _data->length() - 1) {
116 stackmap_format_error("access beyond the end of attribute", CHECK_0);
117 }
118 u2 res = Bytes::get_Java_u2((u1*)_data->byte_at_addr(_index));
119 _index += 2;
120 return res;
121 }
122 bool at_end() {
123 return (_data == NULL) || (_index == _data->length());
124 }
125 static void stackmap_format_error(const char* msg, TRAPS);
126 };
128 class StackMapReader : StackObj {
129 private:
130 // information about the class and method
131 constantPoolHandle _cp;
132 ClassVerifier* _verifier;
133 StackMapStream* _stream;
134 char* _code_data;
135 int32_t _code_length;
137 // information get from the attribute
138 int32_t _frame_count; // frame count
140 int32_t chop(VerificationType* locals, int32_t length, int32_t chops);
141 VerificationType parse_verification_type(u1* flags, TRAPS);
142 void check_verification_type_array_size(
143 int32_t size, int32_t max_size, TRAPS) {
144 if (size < 0 || size > max_size) {
145 // Since this error could be caused someone rewriting the method
146 // but not knowing to update the stackmap data, we call the the
147 // verifier's error method, which may not throw an exception and
148 // failover to the old verifier instead.
149 _verifier->class_format_error(
150 "StackMapTable format error: bad type array size");
151 }
152 }
154 enum {
155 SAME_LOCALS_1_STACK_ITEM_EXTENDED = 247,
156 SAME_EXTENDED = 251,
157 FULL = 255
158 };
160 public:
161 // Constructor
162 StackMapReader(ClassVerifier* v, StackMapStream* stream, char* code_data,
163 int32_t code_len, TRAPS) :
164 _verifier(v), _stream(stream),
165 _code_data(code_data), _code_length(code_len) {
166 methodHandle m = v->method();
167 if (m->has_stackmap_table()) {
168 _cp = constantPoolHandle(THREAD, m->constants());
169 _frame_count = _stream->get_u2(CHECK);
170 } else {
171 // There's no stackmap table present. Frame count and size are 0.
172 _frame_count = 0;
173 }
174 }
176 inline int32_t get_frame_count() const { return _frame_count; }
177 StackMapFrame* next(StackMapFrame* pre_frame, bool first,
178 u2 max_locals, u2 max_stack, TRAPS);
180 void check_end(TRAPS) {
181 if (!_stream->at_end()) {
182 StackMapStream::stackmap_format_error("wrong attribute size", CHECK);
183 }
184 }
185 };
187 #endif // SHARE_VM_CLASSFILE_STACKMAPTABLE_HPP