Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiClassFileReconstituter.hpp @ 4899:a79cb7c55012
7132690: InstanceKlass:_reference_type should be u1 type
Summary: Change InstanceKlass::_reference_type to u1 type.
Reviewed-by: dholmes, coleenp, acorn
Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>
author | jiangli |
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date | Wed, 25 Jan 2012 17:40:51 -0500 |
parents | c01e115b095e |
children | d2a62e0f25eb |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |
26 #define SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP | |
27 | |
28 #include "jvmtifiles/jvmtiEnv.hpp" | |
29 | |
0 | 30 |
31 class JvmtiConstantPoolReconstituter : public StackObj { | |
32 private: | |
33 int _cpool_size; | |
34 SymbolHashMap* _symmap; | |
35 SymbolHashMap* _classmap; | |
36 constantPoolHandle _cpool; | |
37 instanceKlassHandle _ikh; | |
38 jvmtiError _err; | |
39 | |
40 protected: | |
41 instanceKlassHandle ikh() { return _ikh; }; | |
42 constantPoolHandle cpool() { return _cpool; }; | |
43 | |
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44 u2 symbol_to_cpool_index(Symbol* sym) { |
0 | 45 return _symmap->symbol_to_value(sym); |
46 } | |
47 | |
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48 u2 class_symbol_to_cpool_index(Symbol* sym) { |
0 | 49 return _classmap->symbol_to_value(sym); |
50 } | |
51 | |
52 public: | |
53 // Calls to this constructor must be proceeded by a ResourceMark | |
54 // and a HandleMark | |
55 JvmtiConstantPoolReconstituter(instanceKlassHandle ikh){ | |
56 set_error(JVMTI_ERROR_NONE); | |
57 _ikh = ikh; | |
58 _cpool = constantPoolHandle(Thread::current(), ikh->constants()); | |
59 _symmap = new SymbolHashMap(); | |
60 _classmap = new SymbolHashMap(); | |
61 _cpool_size = _cpool->hash_entries_to(_symmap, _classmap); | |
62 if (_cpool_size == 0) { | |
63 set_error(JVMTI_ERROR_OUT_OF_MEMORY); | |
64 } else if (_cpool_size < 0) { | |
65 set_error(JVMTI_ERROR_INTERNAL); | |
66 } | |
67 } | |
68 | |
69 ~JvmtiConstantPoolReconstituter() { | |
70 if (_symmap != NULL) { | |
71 os::free(_symmap); | |
72 _symmap = NULL; | |
73 } | |
74 if (_classmap != NULL) { | |
75 os::free(_classmap); | |
76 _classmap = NULL; | |
77 } | |
78 } | |
79 | |
80 | |
81 void set_error(jvmtiError err) { _err = err; } | |
82 jvmtiError get_error() { return _err; } | |
83 | |
84 int cpool_size() { return _cpool_size; } | |
85 | |
86 void copy_cpool_bytes(unsigned char *cpool_bytes) { | |
87 if (cpool_bytes == NULL) { | |
88 assert(cpool_bytes != NULL, "cpool_bytes pointer must not be NULL"); | |
89 return; | |
90 } | |
91 cpool()->copy_cpool_bytes(cpool_size(), _symmap, cpool_bytes); | |
92 } | |
93 }; | |
94 | |
95 | |
96 class JvmtiClassFileReconstituter : public JvmtiConstantPoolReconstituter { | |
97 private: | |
98 size_t _buffer_size; | |
99 u1* _buffer; | |
100 u1* _buffer_ptr; | |
101 Thread* _thread; | |
102 | |
103 enum { | |
104 // initial size should be power of two | |
105 initial_buffer_size = 1024 | |
106 }; | |
107 | |
108 inline Thread* thread() { return _thread; } | |
109 | |
110 void write_class_file_format(); | |
111 void write_field_infos(); | |
112 void write_method_infos(); | |
113 void write_method_info(methodHandle method); | |
114 void write_code_attribute(methodHandle method); | |
115 void write_exceptions_attribute(constMethodHandle const_method); | |
116 void write_synthetic_attribute(); | |
117 void write_class_attributes(); | |
118 void write_source_file_attribute(); | |
119 void write_source_debug_extension_attribute(); | |
120 u2 line_number_table_entries(methodHandle method); | |
121 void write_line_number_table_attribute(methodHandle method, u2 num_entries); | |
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122 void write_local_variable_table_attribute(methodHandle method, u2 num_entries); |
0 | 123 void write_stackmap_table_attribute(methodHandle method, int stackmap_table_len); |
124 u2 inner_classes_attribute_length(); | |
125 void write_inner_classes_attribute(int length); | |
126 void write_signature_attribute(u2 generic_signaure_index); | |
127 void write_attribute_name_index(const char* name); | |
128 void write_annotations_attribute(const char* attr_name, typeArrayHandle annos); | |
129 | |
130 address writeable_address(size_t size); | |
131 void write_u1(u1 x); | |
132 void write_u2(u2 x); | |
133 void write_u4(u4 x); | |
134 void write_u8(u8 x); | |
135 | |
136 public: | |
137 // Calls to this constructor must be proceeded by a ResourceMark | |
138 // and a HandleMark | |
139 JvmtiClassFileReconstituter(instanceKlassHandle ikh) : | |
140 JvmtiConstantPoolReconstituter(ikh) { | |
141 _buffer_size = initial_buffer_size; | |
142 _buffer = _buffer_ptr = NEW_RESOURCE_ARRAY(u1, _buffer_size); | |
143 _thread = Thread::current(); | |
144 write_class_file_format(); | |
145 }; | |
146 | |
147 size_t class_file_size() { return _buffer_ptr - _buffer; } | |
148 | |
149 u1* class_file_bytes() { return _buffer; } | |
150 | |
151 static void copy_bytecodes(methodHandle method, unsigned char* bytecodes); | |
152 }; | |
1972 | 153 |
154 #endif // SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |