Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiClassFileReconstituter.hpp @ 12355:cefad50507d8
Merge with hs25-b53
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 11 Oct 2013 10:38:03 +0200 |
| parents | b5fef8013a95 |
| children | de6a9e811145 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2005, 2012, 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) { | |
| 6197 | 71 os::free(_symmap, mtClass); |
| 0 | 72 _symmap = NULL; |
| 73 } | |
| 74 if (_classmap != NULL) { | |
| 6197 | 75 os::free(_classmap, mtClass); |
| 0 | 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); | |
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115 void write_exceptions_attribute(ConstMethod* const_method); |
| 0 | 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); |
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123 void write_local_variable_type_table_attribute(methodHandle method, u2 num_entries); |
| 0 | 124 void write_stackmap_table_attribute(methodHandle method, int stackmap_table_len); |
| 125 u2 inner_classes_attribute_length(); | |
| 126 void write_inner_classes_attribute(int length); | |
| 127 void write_signature_attribute(u2 generic_signaure_index); | |
| 128 void write_attribute_name_index(const char* name); | |
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129 void write_annotations_attribute(const char* attr_name, AnnotationArray* annos); |
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130 void write_bootstrapmethod_attribute(); |
| 0 | 131 |
| 132 address writeable_address(size_t size); | |
| 133 void write_u1(u1 x); | |
| 134 void write_u2(u2 x); | |
| 135 void write_u4(u4 x); | |
| 136 void write_u8(u8 x); | |
| 137 | |
| 138 public: | |
| 139 // Calls to this constructor must be proceeded by a ResourceMark | |
| 140 // and a HandleMark | |
| 141 JvmtiClassFileReconstituter(instanceKlassHandle ikh) : | |
| 142 JvmtiConstantPoolReconstituter(ikh) { | |
| 143 _buffer_size = initial_buffer_size; | |
| 144 _buffer = _buffer_ptr = NEW_RESOURCE_ARRAY(u1, _buffer_size); | |
| 145 _thread = Thread::current(); | |
| 146 write_class_file_format(); | |
| 147 }; | |
| 148 | |
| 149 size_t class_file_size() { return _buffer_ptr - _buffer; } | |
| 150 | |
| 151 u1* class_file_bytes() { return _buffer; } | |
| 152 | |
| 153 static void copy_bytecodes(methodHandle method, unsigned char* bytecodes); | |
| 154 }; | |
| 1972 | 155 |
| 156 #endif // SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |