Thu, 09 Dec 2010 15:04:26 -0500
7004582: Add GetThisObject() function to JVMTI 1.2
Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |
stefank@2314 | 26 | #define SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "jvmtifiles/jvmtiEnv.hpp" |
stefank@2314 | 29 | |
duke@435 | 30 | |
duke@435 | 31 | class JvmtiConstantPoolReconstituter : public StackObj { |
duke@435 | 32 | private: |
duke@435 | 33 | int _cpool_size; |
duke@435 | 34 | SymbolHashMap* _symmap; |
duke@435 | 35 | SymbolHashMap* _classmap; |
duke@435 | 36 | constantPoolHandle _cpool; |
duke@435 | 37 | instanceKlassHandle _ikh; |
duke@435 | 38 | jvmtiError _err; |
duke@435 | 39 | |
duke@435 | 40 | protected: |
duke@435 | 41 | instanceKlassHandle ikh() { return _ikh; }; |
duke@435 | 42 | constantPoolHandle cpool() { return _cpool; }; |
duke@435 | 43 | |
duke@435 | 44 | u2 symbol_to_cpool_index(symbolOop sym) { |
duke@435 | 45 | return _symmap->symbol_to_value(sym); |
duke@435 | 46 | } |
duke@435 | 47 | |
duke@435 | 48 | u2 class_symbol_to_cpool_index(symbolOop sym) { |
duke@435 | 49 | return _classmap->symbol_to_value(sym); |
duke@435 | 50 | } |
duke@435 | 51 | |
duke@435 | 52 | public: |
duke@435 | 53 | // Calls to this constructor must be proceeded by a ResourceMark |
duke@435 | 54 | // and a HandleMark |
duke@435 | 55 | JvmtiConstantPoolReconstituter(instanceKlassHandle ikh){ |
duke@435 | 56 | set_error(JVMTI_ERROR_NONE); |
duke@435 | 57 | _ikh = ikh; |
duke@435 | 58 | _cpool = constantPoolHandle(Thread::current(), ikh->constants()); |
duke@435 | 59 | _symmap = new SymbolHashMap(); |
duke@435 | 60 | _classmap = new SymbolHashMap(); |
duke@435 | 61 | _cpool_size = _cpool->hash_entries_to(_symmap, _classmap); |
duke@435 | 62 | if (_cpool_size == 0) { |
duke@435 | 63 | set_error(JVMTI_ERROR_OUT_OF_MEMORY); |
duke@435 | 64 | } else if (_cpool_size < 0) { |
duke@435 | 65 | set_error(JVMTI_ERROR_INTERNAL); |
duke@435 | 66 | } |
duke@435 | 67 | } |
duke@435 | 68 | |
duke@435 | 69 | ~JvmtiConstantPoolReconstituter() { |
duke@435 | 70 | if (_symmap != NULL) { |
duke@435 | 71 | os::free(_symmap); |
duke@435 | 72 | _symmap = NULL; |
duke@435 | 73 | } |
duke@435 | 74 | if (_classmap != NULL) { |
duke@435 | 75 | os::free(_classmap); |
duke@435 | 76 | _classmap = NULL; |
duke@435 | 77 | } |
duke@435 | 78 | } |
duke@435 | 79 | |
duke@435 | 80 | |
duke@435 | 81 | void set_error(jvmtiError err) { _err = err; } |
duke@435 | 82 | jvmtiError get_error() { return _err; } |
duke@435 | 83 | |
duke@435 | 84 | int cpool_size() { return _cpool_size; } |
duke@435 | 85 | |
duke@435 | 86 | void copy_cpool_bytes(unsigned char *cpool_bytes) { |
duke@435 | 87 | if (cpool_bytes == NULL) { |
duke@435 | 88 | assert(cpool_bytes != NULL, "cpool_bytes pointer must not be NULL"); |
duke@435 | 89 | return; |
duke@435 | 90 | } |
duke@435 | 91 | cpool()->copy_cpool_bytes(cpool_size(), _symmap, cpool_bytes); |
duke@435 | 92 | } |
duke@435 | 93 | }; |
duke@435 | 94 | |
duke@435 | 95 | |
duke@435 | 96 | class JvmtiClassFileReconstituter : public JvmtiConstantPoolReconstituter { |
duke@435 | 97 | private: |
duke@435 | 98 | size_t _buffer_size; |
duke@435 | 99 | u1* _buffer; |
duke@435 | 100 | u1* _buffer_ptr; |
duke@435 | 101 | Thread* _thread; |
duke@435 | 102 | |
duke@435 | 103 | enum { |
duke@435 | 104 | // initial size should be power of two |
duke@435 | 105 | initial_buffer_size = 1024 |
duke@435 | 106 | }; |
duke@435 | 107 | |
duke@435 | 108 | inline Thread* thread() { return _thread; } |
duke@435 | 109 | |
duke@435 | 110 | void write_class_file_format(); |
duke@435 | 111 | void write_field_infos(); |
duke@435 | 112 | void write_method_infos(); |
duke@435 | 113 | void write_method_info(methodHandle method); |
duke@435 | 114 | void write_code_attribute(methodHandle method); |
duke@435 | 115 | void write_exceptions_attribute(constMethodHandle const_method); |
duke@435 | 116 | void write_synthetic_attribute(); |
duke@435 | 117 | void write_class_attributes(); |
duke@435 | 118 | void write_source_file_attribute(); |
duke@435 | 119 | void write_source_debug_extension_attribute(); |
duke@435 | 120 | u2 line_number_table_entries(methodHandle method); |
duke@435 | 121 | void write_line_number_table_attribute(methodHandle method, u2 num_entries); |
duke@435 | 122 | void write_stackmap_table_attribute(methodHandle method, int stackmap_table_len); |
duke@435 | 123 | u2 inner_classes_attribute_length(); |
duke@435 | 124 | void write_inner_classes_attribute(int length); |
duke@435 | 125 | void write_signature_attribute(u2 generic_signaure_index); |
duke@435 | 126 | void write_attribute_name_index(const char* name); |
duke@435 | 127 | void write_annotations_attribute(const char* attr_name, typeArrayHandle annos); |
duke@435 | 128 | |
duke@435 | 129 | address writeable_address(size_t size); |
duke@435 | 130 | void write_u1(u1 x); |
duke@435 | 131 | void write_u2(u2 x); |
duke@435 | 132 | void write_u4(u4 x); |
duke@435 | 133 | void write_u8(u8 x); |
duke@435 | 134 | |
duke@435 | 135 | public: |
duke@435 | 136 | // Calls to this constructor must be proceeded by a ResourceMark |
duke@435 | 137 | // and a HandleMark |
duke@435 | 138 | JvmtiClassFileReconstituter(instanceKlassHandle ikh) : |
duke@435 | 139 | JvmtiConstantPoolReconstituter(ikh) { |
duke@435 | 140 | _buffer_size = initial_buffer_size; |
duke@435 | 141 | _buffer = _buffer_ptr = NEW_RESOURCE_ARRAY(u1, _buffer_size); |
duke@435 | 142 | _thread = Thread::current(); |
duke@435 | 143 | write_class_file_format(); |
duke@435 | 144 | }; |
duke@435 | 145 | |
duke@435 | 146 | size_t class_file_size() { return _buffer_ptr - _buffer; } |
duke@435 | 147 | |
duke@435 | 148 | u1* class_file_bytes() { return _buffer; } |
duke@435 | 149 | |
duke@435 | 150 | static void copy_bytecodes(methodHandle method, unsigned char* bytecodes); |
duke@435 | 151 | }; |
stefank@2314 | 152 | |
stefank@2314 | 153 | #endif // SHARE_VM_PRIMS_JVMTICLASSFILERECONSTITUTER_HPP |